[NETFILTER]: Add H.323 conntrack/NAT helper
Signed-off-by: Jing Min Zhao <zhaojignmin@hotmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 933ee7a..882b842 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -168,6 +168,26 @@
If you want to compile it as a module, say M here and read
Documentation/modules.txt. If unsure, say `N'.
+config IP_NF_H323
+ tristate 'H.323 protocol support'
+ depends on IP_NF_CONNTRACK
+ help
+ H.323 is a VoIP signalling protocol from ITU-T. As one of the most
+ important VoIP protocols, it is widely used by voice hardware and
+ software including voice gateways, IP phones, Netmeeting, OpenPhone,
+ Gnomemeeting, etc.
+
+ With this module you can support H.323 on a connection tracking/NAT
+ firewall.
+
+ This module supports RAS, Fast-start, H.245 tunnelling, RTP/RTCP
+ and T.120 based data and applications including audio, video, FAX,
+ chat, whiteboard, file transfer, etc. For more information, please
+ see http://nath323.sourceforge.net/.
+
+ If you want to compile it as a module, say 'M' here and read
+ Documentation/modules.txt. If unsure, say 'N'.
+
config IP_NF_QUEUE
tristate "IP Userspace queueing via NETLINK (OBSOLETE)"
help
@@ -484,6 +504,12 @@
default IP_NF_NAT if IP_NF_PPTP=y
default m if IP_NF_PPTP=m
+config IP_NF_NAT_H323
+ tristate
+ depends on IP_NF_IPTABLES!=n && IP_NF_CONNTRACK!=n && IP_NF_NAT!=n
+ default IP_NF_NAT if IP_NF_H323=y
+ default m if IP_NF_H323=m
+
# mangle + specific targets
config IP_NF_MANGLE
tristate "Packet mangling"
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 3fe8092..f2cd9a6 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -10,6 +10,9 @@
ip_conntrack_pptp-objs := ip_conntrack_helper_pptp.o ip_conntrack_proto_gre.o
ip_nat_pptp-objs := ip_nat_helper_pptp.o ip_nat_proto_gre.o
+ip_conntrack_h323-objs := ip_conntrack_helper_h323.o ip_conntrack_helper_h323_asn1.o
+ip_nat_h323-objs := ip_nat_helper_h323.o
+
# connection tracking
obj-$(CONFIG_IP_NF_CONNTRACK) += ip_conntrack.o
obj-$(CONFIG_IP_NF_NAT) += ip_nat.o
@@ -22,6 +25,7 @@
obj-$(CONFIG_IP_NF_CT_PROTO_SCTP) += ip_conntrack_proto_sctp.o
# connection tracking helpers
+obj-$(CONFIG_IP_NF_H323) += ip_conntrack_h323.o
obj-$(CONFIG_IP_NF_PPTP) += ip_conntrack_pptp.o
obj-$(CONFIG_IP_NF_AMANDA) += ip_conntrack_amanda.o
obj-$(CONFIG_IP_NF_TFTP) += ip_conntrack_tftp.o
@@ -30,6 +34,7 @@
obj-$(CONFIG_IP_NF_NETBIOS_NS) += ip_conntrack_netbios_ns.o
# NAT helpers
+obj-$(CONFIG_IP_NF_NAT_H323) += ip_nat_h323.o
obj-$(CONFIG_IP_NF_NAT_PPTP) += ip_nat_pptp.o
obj-$(CONFIG_IP_NF_NAT_AMANDA) += ip_nat_amanda.o
obj-$(CONFIG_IP_NF_NAT_TFTP) += ip_nat_tftp.o
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323.c b/net/ipv4/netfilter/ip_conntrack_helper_h323.c
new file mode 100644
index 0000000..20da673
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323.c
@@ -0,0 +1,1731 @@
+/*
+ * H.323 connection tracking helper
+ *
+ * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
+ *
+ * This source code is licensed under General Public License version 2.
+ *
+ * Based on the 'brute force' H.323 connection tracking module by
+ * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ *
+ * For more information, please see http://nath323.sourceforge.net/
+ *
+ * Changes:
+ * 2006-02-01 - initial version 0.1
+ *
+ * 2006-02-20 - version 0.2
+ * 1. Changed source format to follow kernel conventions
+ * 2. Deleted some unnecessary structures
+ * 3. Minor fixes
+ *
+ * 2006-03-10 - version 0.3
+ * 1. Added support for multiple TPKTs in one packet (suggested by
+ * Patrick McHardy)
+ * 2. Avoid excessive stack usage (based on Patrick McHardy's patch)
+ * 3. Added support for non-linear skb (based on Patrick McHardy's patch)
+ * 4. Fixed missing H.245 module owner (Patrick McHardy)
+ * 5. Avoid long RAS expectation chains (Patrick McHardy)
+ * 6. Fixed incorrect __exit attribute (Patrick McHardy)
+ * 7. Eliminated unnecessary return code
+ * 8. Fixed incorrect use of NAT data from conntrack code (suggested by
+ * Patrick McHardy)
+ * 9. Fixed TTL calculation error in RCF
+ * 10. Added TTL support in RRQ
+ * 11. Better support for separate TPKT header and data
+ *
+ * 2006-03-15 - version 0.4
+ * 1. Added support for T.120 channels
+ * 2. Added parameter gkrouted_only (suggested by Patrick McHardy)
+ * 3. Splitted ASN.1 code and data (suggested by Patrick McHardy)
+ * 4. Sort ASN.1 data to avoid forwarding declarations (suggested by
+ * Patrick McHardy)
+ * 5. Reset next TPKT data length in get_tpkt_data()
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/netfilter.h>
+#include <linux/ip.h>
+#include <net/tcp.h>
+#include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter_ipv4/ip_conntrack_core.h>
+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
+#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
+#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
+#include <linux/moduleparam.h>
+
+#include "ip_conntrack_helper_h323_asn1.h"
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(format, args...)
+#endif
+
+/* Parameters */
+static int gkrouted_only = 1;
+module_param(gkrouted_only, int, 0600);
+MODULE_PARM_DESC(gkrouted_only, "only accept calls from gatekeeper");
+
+/* Hooks for NAT */
+int (*set_h245_addr_hook) (struct sk_buff ** pskb,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr,
+ u_int32_t ip, u_int16_t port);
+int (*set_h225_addr_hook) (struct sk_buff ** pskb,
+ unsigned char **data, int dataoff,
+ TransportAddress * addr,
+ u_int32_t ip, u_int16_t port);
+int (*set_sig_addr_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data,
+ TransportAddress * addr, int count);
+int (*set_ras_addr_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data,
+ TransportAddress * addr, int count);
+int (*nat_rtp_rtcp_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr,
+ u_int16_t port, u_int16_t rtp_port,
+ struct ip_conntrack_expect * rtp_exp,
+ struct ip_conntrack_expect * rtcp_exp);
+int (*nat_t120_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr, u_int16_t port,
+ struct ip_conntrack_expect * exp);
+int (*nat_h245_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ TransportAddress * addr, u_int16_t port,
+ struct ip_conntrack_expect * exp);
+int (*nat_q931_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, TransportAddress * addr, int idx,
+ u_int16_t port, struct ip_conntrack_expect * exp);
+
+
+static DEFINE_SPINLOCK(ip_h323_lock);
+static char *h323_buffer;
+
+/****************************************************************************/
+static int get_tpkt_data(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int *datalen, int *dataoff)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ struct tcphdr _tcph, *th;
+ int tcpdatalen;
+ int tcpdataoff;
+ unsigned char *tpkt;
+ int tpktlen;
+ int tpktoff;
+
+ /* Get TCP header */
+ th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4,
+ sizeof(_tcph), &_tcph);
+ if (th == NULL)
+ return 0;
+
+ /* Get TCP data offset */
+ tcpdataoff = (*pskb)->nh.iph->ihl * 4 + th->doff * 4;
+
+ /* Get TCP data length */
+ tcpdatalen = (*pskb)->len - tcpdataoff;
+ if (tcpdatalen <= 0) /* No TCP data */
+ goto clear_out;
+
+ if (*data == NULL) { /* first TPKT */
+ /* Get first TPKT pointer */
+ tpkt = skb_header_pointer(*pskb, tcpdataoff, tcpdatalen,
+ h323_buffer);
+ BUG_ON(tpkt == NULL);
+
+ /* Validate TPKT identifier */
+ if (tcpdatalen < 4 || tpkt[0] != 0x03 || tpkt[1] != 0) {
+ /* Netmeeting sends TPKT header and data separately */
+ if (info->tpkt_len[dir] > 0) {
+ DEBUGP("ip_ct_h323: previous packet "
+ "indicated separate TPKT data of %hu "
+ "bytes\n", info->tpkt_len[dir]);
+ if (info->tpkt_len[dir] <= tcpdatalen) {
+ /* Yes, there was a TPKT header
+ * received */
+ *data = tpkt;
+ *datalen = info->tpkt_len[dir];
+ *dataoff = 0;
+ goto out;
+ }
+
+ /* Fragmented TPKT */
+ if (net_ratelimit())
+ printk("ip_ct_h323: "
+ "fragmented TPKT\n");
+ goto clear_out;
+ }
+
+ /* It is not even a TPKT */
+ return 0;
+ }
+ tpktoff = 0;
+ } else { /* Next TPKT */
+ tpktoff = *dataoff + *datalen;
+ tcpdatalen -= tpktoff;
+ if (tcpdatalen <= 4) /* No more TPKT */
+ goto clear_out;
+ tpkt = *data + *datalen;
+
+ /* Validate TPKT identifier */
+ if (tpkt[0] != 0x03 || tpkt[1] != 0)
+ goto clear_out;
+ }
+
+ /* Validate TPKT length */
+ tpktlen = tpkt[2] * 256 + tpkt[3];
+ if (tpktlen > tcpdatalen) {
+ if (tcpdatalen == 4) { /* Separate TPKT header */
+ /* Netmeeting sends TPKT header and data separately */
+ DEBUGP("ip_ct_h323: separate TPKT header indicates "
+ "there will be TPKT data of %hu bytes\n",
+ tpktlen - 4);
+ info->tpkt_len[dir] = tpktlen - 4;
+ return 0;
+ }
+
+ if (net_ratelimit())
+ printk("ip_ct_h323: incomplete TPKT (fragmented?)\n");
+ goto clear_out;
+ }
+
+ /* This is the encapsulated data */
+ *data = tpkt + 4;
+ *datalen = tpktlen - 4;
+ *dataoff = tpktoff + 4;
+
+ out:
+ /* Clear TPKT length */
+ info->tpkt_len[dir] = 0;
+ return 1;
+
+ clear_out:
+ info->tpkt_len[dir] = 0;
+ return 0;
+}
+
+/****************************************************************************/
+int get_h245_addr(unsigned char *data, H245_TransportAddress * addr,
+ u_int32_t * ip, u_int16_t * port)
+{
+ unsigned char *p;
+
+ if (addr->choice != eH245_TransportAddress_unicastAddress ||
+ addr->unicastAddress.choice != eUnicastAddress_iPAddress)
+ return 0;
+
+ p = data + addr->unicastAddress.iPAddress.network;
+ *ip = htonl((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]));
+ *port = (p[4] << 8) | (p[5]);
+
+ return 1;
+}
+
+/****************************************************************************/
+static int expect_rtp_rtcp(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int ret = 0;
+ u_int32_t ip;
+ u_int16_t port;
+ u_int16_t rtp_port;
+ struct ip_conntrack_expect *rtp_exp;
+ struct ip_conntrack_expect *rtcp_exp;
+
+ /* Read RTP or RTCP address */
+ if (!get_h245_addr(*data, addr, &ip, &port) ||
+ ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
+ return 0;
+
+ /* RTP port is even */
+ rtp_port = port & (~1);
+
+ /* Create expect for RTP */
+ if ((rtp_exp = ip_conntrack_expect_alloc(ct)) == NULL)
+ return -1;
+ rtp_exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+ rtp_exp->tuple.src.u.udp.port = 0;
+ rtp_exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+ rtp_exp->tuple.dst.u.udp.port = htons(rtp_port);
+ rtp_exp->tuple.dst.protonum = IPPROTO_UDP;
+ rtp_exp->mask.src.ip = 0xFFFFFFFF;
+ rtp_exp->mask.src.u.udp.port = 0;
+ rtp_exp->mask.dst.ip = 0xFFFFFFFF;
+ rtp_exp->mask.dst.u.udp.port = 0xFFFF;
+ rtp_exp->mask.dst.protonum = 0xFF;
+ rtp_exp->flags = 0;
+
+ /* Create expect for RTCP */
+ if ((rtcp_exp = ip_conntrack_expect_alloc(ct)) == NULL) {
+ ip_conntrack_expect_put(rtp_exp);
+ return -1;
+ }
+ rtcp_exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+ rtcp_exp->tuple.src.u.udp.port = 0;
+ rtcp_exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+ rtcp_exp->tuple.dst.u.udp.port = htons(rtp_port + 1);
+ rtcp_exp->tuple.dst.protonum = IPPROTO_UDP;
+ rtcp_exp->mask.src.ip = 0xFFFFFFFF;
+ rtcp_exp->mask.src.u.udp.port = 0;
+ rtcp_exp->mask.dst.ip = 0xFFFFFFFF;
+ rtcp_exp->mask.dst.u.udp.port = 0xFFFF;
+ rtcp_exp->mask.dst.protonum = 0xFF;
+ rtcp_exp->flags = 0;
+
+ if (ct->tuplehash[dir].tuple.src.ip !=
+ ct->tuplehash[!dir].tuple.dst.ip && nat_rtp_rtcp_hook) {
+ /* NAT needed */
+ ret = nat_rtp_rtcp_hook(pskb, ct, ctinfo, data, dataoff,
+ addr, port, rtp_port, rtp_exp,
+ rtcp_exp);
+ } else { /* Conntrack only */
+ rtp_exp->expectfn = NULL;
+ rtcp_exp->expectfn = NULL;
+
+ if (ip_conntrack_expect_related(rtp_exp) == 0) {
+ if (ip_conntrack_expect_related(rtcp_exp) == 0) {
+ DEBUGP("ip_ct_h323: expect RTP "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(rtp_exp->tuple.src.ip),
+ ntohs(rtp_exp->tuple.src.u.udp.port),
+ NIPQUAD(rtp_exp->tuple.dst.ip),
+ ntohs(rtp_exp->tuple.dst.u.udp.port));
+ DEBUGP("ip_ct_h323: expect RTCP "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(rtcp_exp->tuple.src.ip),
+ ntohs(rtcp_exp->tuple.src.u.udp.port),
+ NIPQUAD(rtcp_exp->tuple.dst.ip),
+ ntohs(rtcp_exp->tuple.dst.u.udp.port));
+ } else {
+ ip_conntrack_unexpect_related(rtp_exp);
+ ret = -1;
+ }
+ } else
+ ret = -1;
+ }
+
+ ip_conntrack_expect_put(rtp_exp);
+ ip_conntrack_expect_put(rtcp_exp);
+
+ return ret;
+}
+
+/****************************************************************************/
+static int expect_t120(struct sk_buff **pskb,
+ struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int ret = 0;
+ u_int32_t ip;
+ u_int16_t port;
+ struct ip_conntrack_expect *exp = NULL;
+
+ /* Read T.120 address */
+ if (!get_h245_addr(*data, addr, &ip, &port) ||
+ ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
+ return 0;
+
+ /* Create expect for T.120 connections */
+ if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+ return -1;
+ exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+ exp->tuple.src.u.tcp.port = 0;
+ exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+ exp->tuple.dst.u.tcp.port = htons(port);
+ exp->tuple.dst.protonum = IPPROTO_TCP;
+ exp->mask.src.ip = 0xFFFFFFFF;
+ exp->mask.src.u.tcp.port = 0;
+ exp->mask.dst.ip = 0xFFFFFFFF;
+ exp->mask.dst.u.tcp.port = 0xFFFF;
+ exp->mask.dst.protonum = 0xFF;
+ exp->flags = IP_CT_EXPECT_PERMANENT; /* Accept multiple channels */
+
+ if (ct->tuplehash[dir].tuple.src.ip !=
+ ct->tuplehash[!dir].tuple.dst.ip && nat_t120_hook) {
+ /* NAT needed */
+ ret = nat_t120_hook(pskb, ct, ctinfo, data, dataoff, addr,
+ port, exp);
+ } else { /* Conntrack only */
+ exp->expectfn = NULL;
+ if (ip_conntrack_expect_related(exp) == 0) {
+ DEBUGP("ip_ct_h323: expect T.120 "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
+ } else
+ ret = -1;
+ }
+
+ ip_conntrack_expect_put(exp);
+
+ return ret;
+}
+
+/****************************************************************************/
+static int process_h245_channel(struct sk_buff **pskb,
+ struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H2250LogicalChannelParameters * channel)
+{
+ int ret;
+
+ if (channel->options & eH2250LogicalChannelParameters_mediaChannel) {
+ /* RTP */
+ ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+ &channel->mediaChannel);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (channel->
+ options & eH2250LogicalChannelParameters_mediaControlChannel) {
+ /* RTCP */
+ ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+ &channel->mediaControlChannel);
+ if (ret < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_olc(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ OpenLogicalChannel * olc)
+{
+ int ret;
+
+ DEBUGP("ip_ct_h323: OpenLogicalChannel\n");
+
+ if (olc->forwardLogicalChannelParameters.multiplexParameters.choice ==
+ eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters)
+ {
+ ret = process_h245_channel(pskb, ct, ctinfo, data, dataoff,
+ &olc->
+ forwardLogicalChannelParameters.
+ multiplexParameters.
+ h2250LogicalChannelParameters);
+ if (ret < 0)
+ return -1;
+ }
+
+ if ((olc->options &
+ eOpenLogicalChannel_reverseLogicalChannelParameters) &&
+ (olc->reverseLogicalChannelParameters.options &
+ eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters)
+ && (olc->reverseLogicalChannelParameters.multiplexParameters.
+ choice ==
+ eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters))
+ {
+ ret =
+ process_h245_channel(pskb, ct, ctinfo, data, dataoff,
+ &olc->
+ reverseLogicalChannelParameters.
+ multiplexParameters.
+ h2250LogicalChannelParameters);
+ if (ret < 0)
+ return -1;
+ }
+
+ if ((olc->options & eOpenLogicalChannel_separateStack) &&
+ olc->forwardLogicalChannelParameters.dataType.choice ==
+ eDataType_data &&
+ olc->forwardLogicalChannelParameters.dataType.data.application.
+ choice == eDataApplicationCapability_application_t120 &&
+ olc->forwardLogicalChannelParameters.dataType.data.application.
+ t120.choice == eDataProtocolCapability_separateLANStack &&
+ olc->separateStack.networkAddress.choice ==
+ eNetworkAccessParameters_networkAddress_localAreaAddress) {
+ ret = expect_t120(pskb, ct, ctinfo, data, dataoff,
+ &olc->separateStack.networkAddress.
+ localAreaAddress);
+ if (ret < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_olca(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ OpenLogicalChannelAck * olca)
+{
+ H2250LogicalChannelAckParameters *ack;
+ int ret;
+
+ DEBUGP("ip_ct_h323: OpenLogicalChannelAck\n");
+
+ if ((olca->options &
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters) &&
+ (olca->reverseLogicalChannelParameters.options &
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters)
+ && (olca->reverseLogicalChannelParameters.multiplexParameters.
+ choice ==
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters))
+ {
+ ret = process_h245_channel(pskb, ct, ctinfo, data, dataoff,
+ &olca->
+ reverseLogicalChannelParameters.
+ multiplexParameters.
+ h2250LogicalChannelParameters);
+ if (ret < 0)
+ return -1;
+ }
+
+ if ((olca->options &
+ eOpenLogicalChannelAck_forwardMultiplexAckParameters) &&
+ (olca->forwardMultiplexAckParameters.choice ==
+ eOpenLogicalChannelAck_forwardMultiplexAckParameters_h2250LogicalChannelAckParameters))
+ {
+ ack = &olca->forwardMultiplexAckParameters.
+ h2250LogicalChannelAckParameters;
+ if (ack->options &
+ eH2250LogicalChannelAckParameters_mediaChannel) {
+ /* RTP */
+ ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+ &ack->mediaChannel);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (ack->options &
+ eH2250LogicalChannelAckParameters_mediaControlChannel) {
+ /* RTCP */
+ ret = expect_rtp_rtcp(pskb, ct, ctinfo, data, dataoff,
+ &ack->mediaControlChannel);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ MultimediaSystemControlMessage * mscm)
+{
+ switch (mscm->choice) {
+ case eMultimediaSystemControlMessage_request:
+ if (mscm->request.choice ==
+ eRequestMessage_openLogicalChannel) {
+ return process_olc(pskb, ct, ctinfo, data, dataoff,
+ &mscm->request.openLogicalChannel);
+ }
+ DEBUGP("ip_ct_h323: H.245 Request %d\n",
+ mscm->request.choice);
+ break;
+ case eMultimediaSystemControlMessage_response:
+ if (mscm->response.choice ==
+ eResponseMessage_openLogicalChannelAck) {
+ return process_olca(pskb, ct, ctinfo, data, dataoff,
+ &mscm->response.
+ openLogicalChannelAck);
+ }
+ DEBUGP("ip_ct_h323: H.245 Response %d\n",
+ mscm->response.choice);
+ break;
+ default:
+ DEBUGP("ip_ct_h323: H.245 signal %d\n", mscm->choice);
+ break;
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int h245_help(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo)
+{
+ static MultimediaSystemControlMessage mscm;
+ unsigned char *data = NULL;
+ int datalen;
+ int dataoff;
+ int ret;
+
+ /* Until there's been traffic both ways, don't look in packets. */
+ if (ctinfo != IP_CT_ESTABLISHED
+ && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
+ return NF_ACCEPT;
+ }
+ DEBUGP("ip_ct_h245: skblen = %u\n", (*pskb)->len);
+
+ spin_lock_bh(&ip_h323_lock);
+
+ /* Process each TPKT */
+ while (get_tpkt_data(pskb, ct, ctinfo, &data, &datalen, &dataoff)) {
+ DEBUGP("ip_ct_h245: TPKT %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
+ NIPQUAD((*pskb)->nh.iph->saddr),
+ NIPQUAD((*pskb)->nh.iph->daddr), datalen);
+
+ /* Decode H.245 signal */
+ ret = DecodeMultimediaSystemControlMessage(data, datalen,
+ &mscm);
+ if (ret < 0) {
+ if (net_ratelimit())
+ printk("ip_ct_h245: decoding error: %s\n",
+ ret == H323_ERROR_BOUND ?
+ "out of bound" : "out of range");
+ /* We don't drop when decoding error */
+ break;
+ }
+
+ /* Process H.245 signal */
+ if (process_h245(pskb, ct, ctinfo, &data, dataoff, &mscm) < 0)
+ goto drop;
+ }
+
+ spin_unlock_bh(&ip_h323_lock);
+ return NF_ACCEPT;
+
+ drop:
+ spin_unlock_bh(&ip_h323_lock);
+ if (net_ratelimit())
+ printk("ip_ct_h245: packet dropped\n");
+ return NF_DROP;
+}
+
+/****************************************************************************/
+static struct ip_conntrack_helper ip_conntrack_helper_h245 = {
+ .name = "H.245",
+ .me = THIS_MODULE,
+ .max_expected = H323_RTP_CHANNEL_MAX * 4 + 2 /* T.120 */ ,
+ .timeout = 240,
+ .tuple = {.dst = {.protonum = IPPROTO_TCP}},
+ .mask = {.src = {.u = {0xFFFF}},
+ .dst = {.protonum = 0xFF}},
+ .help = h245_help
+};
+
+/****************************************************************************/
+void ip_conntrack_h245_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this)
+{
+ write_lock_bh(&ip_conntrack_lock);
+ new->helper = &ip_conntrack_helper_h245;
+ write_unlock_bh(&ip_conntrack_lock);
+}
+
+/****************************************************************************/
+static int get_h225_addr(unsigned char *data, TransportAddress * addr,
+ u_int32_t * ip, u_int16_t * port)
+{
+ unsigned char *p;
+
+ if (addr->choice != eTransportAddress_ipAddress)
+ return 0;
+
+ p = data + addr->ipAddress.ip;
+ *ip = htonl((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | (p[3]));
+ *port = (p[4] << 8) | (p[5]);
+
+ return 1;
+}
+
+/****************************************************************************/
+static int expect_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ TransportAddress * addr)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int ret = 0;
+ u_int32_t ip;
+ u_int16_t port;
+ struct ip_conntrack_expect *exp = NULL;
+
+ /* Read h245Address */
+ if (!get_h225_addr(*data, addr, &ip, &port) ||
+ ip != ct->tuplehash[dir].tuple.src.ip || port == 0)
+ return 0;
+
+ /* Create expect for h245 connection */
+ if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+ return -1;
+ exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+ exp->tuple.src.u.tcp.port = 0;
+ exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+ exp->tuple.dst.u.tcp.port = htons(port);
+ exp->tuple.dst.protonum = IPPROTO_TCP;
+ exp->mask.src.ip = 0xFFFFFFFF;
+ exp->mask.src.u.tcp.port = 0;
+ exp->mask.dst.ip = 0xFFFFFFFF;
+ exp->mask.dst.u.tcp.port = 0xFFFF;
+ exp->mask.dst.protonum = 0xFF;
+ exp->flags = 0;
+
+ if (ct->tuplehash[dir].tuple.src.ip !=
+ ct->tuplehash[!dir].tuple.dst.ip && nat_h245_hook) {
+ /* NAT needed */
+ ret = nat_h245_hook(pskb, ct, ctinfo, data, dataoff, addr,
+ port, exp);
+ } else { /* Conntrack only */
+ exp->expectfn = ip_conntrack_h245_expect;
+
+ if (ip_conntrack_expect_related(exp) == 0) {
+ DEBUGP("ip_ct_q931: expect H.245 "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
+ } else
+ ret = -1;
+ }
+
+ ip_conntrack_expect_put(exp);
+
+ return ret;
+}
+
+/****************************************************************************/
+static int process_setup(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ Setup_UUIE * setup)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int ret;
+ int i;
+ u_int32_t ip;
+ u_int16_t port;
+
+ DEBUGP("ip_ct_q931: Setup\n");
+
+ if (setup->options & eSetup_UUIE_h245Address) {
+ ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+ &setup->h245Address);
+ if (ret < 0)
+ return -1;
+ }
+
+ if ((setup->options & eSetup_UUIE_destCallSignalAddress) &&
+ (set_h225_addr_hook) &&
+ get_h225_addr(*data, &setup->destCallSignalAddress, &ip, &port) &&
+ ip != ct->tuplehash[!dir].tuple.src.ip) {
+ DEBUGP("ip_ct_q931: set destCallSignalAddress "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(ip), port,
+ NIPQUAD(ct->tuplehash[!dir].tuple.src.ip),
+ ntohs(ct->tuplehash[!dir].tuple.src.u.tcp.port));
+ ret = set_h225_addr_hook(pskb, data, dataoff,
+ &setup->destCallSignalAddress,
+ ct->tuplehash[!dir].tuple.src.ip,
+ ntohs(ct->tuplehash[!dir].tuple.src.
+ u.tcp.port));
+ if (ret < 0)
+ return -1;
+ }
+
+ if ((setup->options & eSetup_UUIE_sourceCallSignalAddress) &&
+ (set_h225_addr_hook) &&
+ get_h225_addr(*data, &setup->sourceCallSignalAddress, &ip, &port)
+ && ip != ct->tuplehash[!dir].tuple.dst.ip) {
+ DEBUGP("ip_ct_q931: set sourceCallSignalAddress "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(ip), port,
+ NIPQUAD(ct->tuplehash[!dir].tuple.dst.ip),
+ ntohs(ct->tuplehash[!dir].tuple.dst.u.tcp.port));
+ ret = set_h225_addr_hook(pskb, data, dataoff,
+ &setup->sourceCallSignalAddress,
+ ct->tuplehash[!dir].tuple.dst.ip,
+ ntohs(ct->tuplehash[!dir].tuple.dst.
+ u.tcp.port));
+ if (ret < 0)
+ return -1;
+ }
+
+ if (setup->options & eSetup_UUIE_fastStart) {
+ for (i = 0; i < setup->fastStart.count; i++) {
+ ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+ &setup->fastStart.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_callproceeding(struct sk_buff **pskb,
+ struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ CallProceeding_UUIE * callproc)
+{
+ int ret;
+ int i;
+
+ DEBUGP("ip_ct_q931: CallProceeding\n");
+
+ if (callproc->options & eCallProceeding_UUIE_h245Address) {
+ ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+ &callproc->h245Address);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (callproc->options & eCallProceeding_UUIE_fastStart) {
+ for (i = 0; i < callproc->fastStart.count; i++) {
+ ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+ &callproc->fastStart.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_connect(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ Connect_UUIE * connect)
+{
+ int ret;
+ int i;
+
+ DEBUGP("ip_ct_q931: Connect\n");
+
+ if (connect->options & eConnect_UUIE_h245Address) {
+ ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+ &connect->h245Address);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (connect->options & eConnect_UUIE_fastStart) {
+ for (i = 0; i < connect->fastStart.count; i++) {
+ ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+ &connect->fastStart.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_alerting(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ Alerting_UUIE * alert)
+{
+ int ret;
+ int i;
+
+ DEBUGP("ip_ct_q931: Alerting\n");
+
+ if (alert->options & eAlerting_UUIE_h245Address) {
+ ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+ &alert->h245Address);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (alert->options & eAlerting_UUIE_fastStart) {
+ for (i = 0; i < alert->fastStart.count; i++) {
+ ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+ &alert->fastStart.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_information(struct sk_buff **pskb,
+ struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ Information_UUIE * info)
+{
+ int ret;
+ int i;
+
+ DEBUGP("ip_ct_q931: Information\n");
+
+ if (info->options & eInformation_UUIE_fastStart) {
+ for (i = 0; i < info->fastStart.count; i++) {
+ ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+ &info->fastStart.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_facility(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ Facility_UUIE * facility)
+{
+ int ret;
+ int i;
+
+ DEBUGP("ip_ct_q931: Facility\n");
+
+ if (facility->options & eFacility_UUIE_h245Address) {
+ ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+ &facility->h245Address);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (facility->options & eFacility_UUIE_fastStart) {
+ for (i = 0; i < facility->fastStart.count; i++) {
+ ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+ &facility->fastStart.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_progress(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ Progress_UUIE * progress)
+{
+ int ret;
+ int i;
+
+ DEBUGP("ip_ct_q931: Progress\n");
+
+ if (progress->options & eProgress_UUIE_h245Address) {
+ ret = expect_h245(pskb, ct, ctinfo, data, dataoff,
+ &progress->h245Address);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (progress->options & eProgress_UUIE_fastStart) {
+ for (i = 0; i < progress->fastStart.count; i++) {
+ ret = process_olc(pskb, ct, ctinfo, data, dataoff,
+ &progress->fastStart.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff, Q931 * q931)
+{
+ H323_UU_PDU *pdu = &q931->UUIE.h323_uu_pdu;
+ int i;
+ int ret = 0;
+
+ switch (pdu->h323_message_body.choice) {
+ case eH323_UU_PDU_h323_message_body_setup:
+ ret = process_setup(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h323_message_body.setup);
+ break;
+ case eH323_UU_PDU_h323_message_body_callProceeding:
+ ret = process_callproceeding(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h323_message_body.
+ callProceeding);
+ break;
+ case eH323_UU_PDU_h323_message_body_connect:
+ ret = process_connect(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h323_message_body.connect);
+ break;
+ case eH323_UU_PDU_h323_message_body_alerting:
+ ret = process_alerting(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h323_message_body.alerting);
+ break;
+ case eH323_UU_PDU_h323_message_body_information:
+ ret = process_information(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h323_message_body.
+ information);
+ break;
+ case eH323_UU_PDU_h323_message_body_facility:
+ ret = process_facility(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h323_message_body.facility);
+ break;
+ case eH323_UU_PDU_h323_message_body_progress:
+ ret = process_progress(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h323_message_body.progress);
+ break;
+ default:
+ DEBUGP("ip_ct_q931: Q.931 signal %d\n",
+ pdu->h323_message_body.choice);
+ break;
+ }
+
+ if (ret < 0)
+ return -1;
+
+ if (pdu->options & eH323_UU_PDU_h245Control) {
+ for (i = 0; i < pdu->h245Control.count; i++) {
+ ret = process_h245(pskb, ct, ctinfo, data, dataoff,
+ &pdu->h245Control.item[i]);
+ if (ret < 0)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int q931_help(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo)
+{
+ static Q931 q931;
+ unsigned char *data = NULL;
+ int datalen;
+ int dataoff;
+ int ret;
+
+ /* Until there's been traffic both ways, don't look in packets. */
+ if (ctinfo != IP_CT_ESTABLISHED
+ && ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
+ return NF_ACCEPT;
+ }
+ DEBUGP("ip_ct_q931: skblen = %u\n", (*pskb)->len);
+
+ spin_lock_bh(&ip_h323_lock);
+
+ /* Process each TPKT */
+ while (get_tpkt_data(pskb, ct, ctinfo, &data, &datalen, &dataoff)) {
+ DEBUGP("ip_ct_q931: TPKT %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
+ NIPQUAD((*pskb)->nh.iph->saddr),
+ NIPQUAD((*pskb)->nh.iph->daddr), datalen);
+
+ /* Decode Q.931 signal */
+ ret = DecodeQ931(data, datalen, &q931);
+ if (ret < 0) {
+ if (net_ratelimit())
+ printk("ip_ct_q931: decoding error: %s\n",
+ ret == H323_ERROR_BOUND ?
+ "out of bound" : "out of range");
+ /* We don't drop when decoding error */
+ break;
+ }
+
+ /* Process Q.931 signal */
+ if (process_q931(pskb, ct, ctinfo, &data, dataoff, &q931) < 0)
+ goto drop;
+ }
+
+ spin_unlock_bh(&ip_h323_lock);
+ return NF_ACCEPT;
+
+ drop:
+ spin_unlock_bh(&ip_h323_lock);
+ if (net_ratelimit())
+ printk("ip_ct_q931: packet dropped\n");
+ return NF_DROP;
+}
+
+/****************************************************************************/
+static struct ip_conntrack_helper ip_conntrack_helper_q931 = {
+ .name = "Q.931",
+ .me = THIS_MODULE,
+ .max_expected = H323_RTP_CHANNEL_MAX * 4 + 4 /* T.120 and H.245 */ ,
+ .timeout = 240,
+ .tuple = {.src = {.u = {__constant_htons(Q931_PORT)}},
+ .dst = {.protonum = IPPROTO_TCP}},
+ .mask = {.src = {.u = {0xFFFF}},
+ .dst = {.protonum = 0xFF}},
+ .help = q931_help
+};
+
+/****************************************************************************/
+void ip_conntrack_q931_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this)
+{
+ write_lock_bh(&ip_conntrack_lock);
+ new->helper = &ip_conntrack_helper_q931;
+ write_unlock_bh(&ip_conntrack_lock);
+}
+
+/****************************************************************************/
+static unsigned char *get_udp_data(struct sk_buff **pskb, int *datalen)
+{
+ struct udphdr _uh, *uh;
+ int dataoff;
+
+ uh = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4, sizeof(_uh),
+ &_uh);
+ if (uh == NULL)
+ return NULL;
+ dataoff = (*pskb)->nh.iph->ihl * 4 + sizeof(_uh);
+ if (dataoff >= (*pskb)->len)
+ return NULL;
+ *datalen = (*pskb)->len - dataoff;
+ return skb_header_pointer(*pskb, dataoff, *datalen, h323_buffer);
+}
+
+/****************************************************************************/
+static struct ip_conntrack_expect *find_expect(struct ip_conntrack *ct,
+ u_int32_t ip, u_int16_t port)
+{
+ struct ip_conntrack_expect *exp;
+ struct ip_conntrack_tuple tuple;
+
+ tuple.src.ip = 0;
+ tuple.src.u.tcp.port = 0;
+ tuple.dst.ip = ip;
+ tuple.dst.u.tcp.port = htons(port);
+ tuple.dst.protonum = IPPROTO_TCP;
+
+ exp = __ip_conntrack_expect_find(&tuple);
+ if (exp->master == ct)
+ return exp;
+ return NULL;
+}
+
+/****************************************************************************/
+static int set_expect_timeout(struct ip_conntrack_expect *exp,
+ unsigned timeout)
+{
+ if (!exp || !del_timer(&exp->timeout))
+ return 0;
+
+ exp->timeout.expires = jiffies + timeout * HZ;
+ add_timer(&exp->timeout);
+
+ return 1;
+}
+
+/****************************************************************************/
+static int expect_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data,
+ TransportAddress * addr, int count)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ int ret = 0;
+ int i;
+ u_int32_t ip;
+ u_int16_t port;
+ struct ip_conntrack_expect *exp;
+
+ /* Look for the first related address */
+ for (i = 0; i < count; i++) {
+ if (get_h225_addr(*data, &addr[i], &ip, &port) &&
+ ip == ct->tuplehash[dir].tuple.src.ip && port != 0)
+ break;
+ }
+
+ if (i >= count) /* Not found */
+ return 0;
+
+ /* Create expect for Q.931 */
+ if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+ return -1;
+ exp->tuple.src.ip = gkrouted_only ? /* only accept calls from GK? */
+ ct->tuplehash[!dir].tuple.src.ip : 0;
+ exp->tuple.src.u.tcp.port = 0;
+ exp->tuple.dst.ip = ct->tuplehash[!dir].tuple.dst.ip;
+ exp->tuple.dst.u.tcp.port = htons(port);
+ exp->tuple.dst.protonum = IPPROTO_TCP;
+ exp->mask.src.ip = gkrouted_only ? 0xFFFFFFFF : 0;
+ exp->mask.src.u.tcp.port = 0;
+ exp->mask.dst.ip = 0xFFFFFFFF;
+ exp->mask.dst.u.tcp.port = 0xFFFF;
+ exp->mask.dst.protonum = 0xFF;
+ exp->flags = IP_CT_EXPECT_PERMANENT; /* Accept multiple calls */
+
+ if (nat_q931_hook) { /* Need NAT */
+ ret = nat_q931_hook(pskb, ct, ctinfo, data, addr, i,
+ port, exp);
+ } else { /* Conntrack only */
+ exp->expectfn = ip_conntrack_q931_expect;
+
+ if (ip_conntrack_expect_related(exp) == 0) {
+ DEBUGP("ip_ct_ras: expect Q.931 "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
+
+ /* Save port for looking up expect in processing RCF */
+ info->sig_port[dir] = port;
+ } else
+ ret = -1;
+ }
+
+ ip_conntrack_expect_put(exp);
+
+ return ret;
+}
+
+/****************************************************************************/
+static int process_grq(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, GatekeeperRequest * grq)
+{
+ DEBUGP("ip_ct_ras: GRQ\n");
+
+ if (set_ras_addr_hook) /* NATed */
+ return set_ras_addr_hook(pskb, ct, ctinfo, data,
+ &grq->rasAddress, 1);
+ return 0;
+}
+
+/* Declare before using */
+static void ip_conntrack_ras_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this);
+
+/****************************************************************************/
+static int process_gcf(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, GatekeeperConfirm * gcf)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int ret = 0;
+ u_int32_t ip;
+ u_int16_t port;
+ struct ip_conntrack_expect *exp;
+
+ DEBUGP("ip_ct_ras: GCF\n");
+
+ if (!get_h225_addr(*data, &gcf->rasAddress, &ip, &port))
+ return 0;
+
+ /* Registration port is the same as discovery port */
+ if (ip == ct->tuplehash[dir].tuple.src.ip &&
+ port == ntohs(ct->tuplehash[dir].tuple.src.u.udp.port))
+ return 0;
+
+ /* Avoid RAS expectation loops. A GCF is never expected. */
+ if (test_bit(IPS_EXPECTED_BIT, &ct->status))
+ return 0;
+
+ /* Need new expect */
+ if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+ return -1;
+ exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+ exp->tuple.src.u.tcp.port = 0;
+ exp->tuple.dst.ip = ip;
+ exp->tuple.dst.u.tcp.port = htons(port);
+ exp->tuple.dst.protonum = IPPROTO_UDP;
+ exp->mask.src.ip = 0xFFFFFFFF;
+ exp->mask.src.u.tcp.port = 0;
+ exp->mask.dst.ip = 0xFFFFFFFF;
+ exp->mask.dst.u.tcp.port = 0xFFFF;
+ exp->mask.dst.protonum = 0xFF;
+ exp->flags = 0;
+ exp->expectfn = ip_conntrack_ras_expect;
+ if (ip_conntrack_expect_related(exp) == 0) {
+ DEBUGP("ip_ct_ras: expect RAS "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
+ } else
+ ret = -1;
+
+ ip_conntrack_expect_put(exp);
+
+ return ret;
+}
+
+/****************************************************************************/
+static int process_rrq(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, RegistrationRequest * rrq)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int ret;
+
+ DEBUGP("ip_ct_ras: RRQ\n");
+
+ ret = expect_q931(pskb, ct, ctinfo, data,
+ rrq->callSignalAddress.item,
+ rrq->callSignalAddress.count);
+ if (ret < 0)
+ return -1;
+
+ if (set_ras_addr_hook) {
+ ret = set_ras_addr_hook(pskb, ct, ctinfo, data,
+ rrq->rasAddress.item,
+ rrq->rasAddress.count);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (rrq->options & eRegistrationRequest_timeToLive) {
+ DEBUGP("ip_ct_ras: RRQ TTL = %u seconds\n", rrq->timeToLive);
+ info->timeout = rrq->timeToLive;
+ } else
+ info->timeout = 0;
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_rcf(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, RegistrationConfirm * rcf)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ int ret;
+ struct ip_conntrack_expect *exp;
+
+ DEBUGP("ip_ct_ras: RCF\n");
+
+ if (set_sig_addr_hook) {
+ ret = set_sig_addr_hook(pskb, ct, ctinfo, data,
+ rcf->callSignalAddress.item,
+ rcf->callSignalAddress.count);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (rcf->options & eRegistrationConfirm_timeToLive) {
+ DEBUGP("ip_ct_ras: RCF TTL = %u seconds\n", rcf->timeToLive);
+ info->timeout = rcf->timeToLive;
+ }
+
+ if (info->timeout > 0) {
+ DEBUGP
+ ("ip_ct_ras: set RAS connection timeout to %u seconds\n",
+ info->timeout);
+ ip_ct_refresh_acct(ct, ctinfo, NULL, info->timeout * HZ);
+
+ /* Set expect timeout */
+ read_lock_bh(&ip_conntrack_lock);
+ exp = find_expect(ct, ct->tuplehash[dir].tuple.dst.ip,
+ info->sig_port[!dir]);
+ if (exp) {
+ DEBUGP("ip_ct_ras: set Q.931 expect "
+ "(%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu) "
+ "timeout to %u seconds\n",
+ NIPQUAD(exp->tuple.src.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip),
+ ntohs(exp->tuple.dst.u.tcp.port),
+ info->timeout);
+ set_expect_timeout(exp, info->timeout);
+ }
+ read_unlock_bh(&ip_conntrack_lock);
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_urq(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, UnregistrationRequest * urq)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ int ret;
+
+ DEBUGP("ip_ct_ras: URQ\n");
+
+ if (set_sig_addr_hook) {
+ ret = set_sig_addr_hook(pskb, ct, ctinfo, data,
+ urq->callSignalAddress.item,
+ urq->callSignalAddress.count);
+ if (ret < 0)
+ return -1;
+ }
+
+ /* Clear old expect */
+ ip_ct_remove_expectations(ct);
+ info->sig_port[dir] = 0;
+ info->sig_port[!dir] = 0;
+
+ /* Give it 30 seconds for UCF or URJ */
+ ip_ct_refresh_acct(ct, ctinfo, NULL, 30 * HZ);
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_arq(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, AdmissionRequest * arq)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ u_int32_t ip;
+ u_int16_t port;
+
+ DEBUGP("ip_ct_ras: ARQ\n");
+
+ if ((arq->options & eAdmissionRequest_destCallSignalAddress) &&
+ get_h225_addr(*data, &arq->destCallSignalAddress, &ip, &port) &&
+ ip == ct->tuplehash[dir].tuple.src.ip &&
+ port == info->sig_port[dir] && set_h225_addr_hook) {
+ /* Answering ARQ */
+ return set_h225_addr_hook(pskb, data, 0,
+ &arq->destCallSignalAddress,
+ ct->tuplehash[!dir].tuple.dst.ip,
+ info->sig_port[!dir]);
+ }
+
+ if ((arq->options & eAdmissionRequest_srcCallSignalAddress) &&
+ get_h225_addr(*data, &arq->srcCallSignalAddress, &ip, &port) &&
+ ip == ct->tuplehash[dir].tuple.src.ip && set_h225_addr_hook) {
+ /* Calling ARQ */
+ return set_h225_addr_hook(pskb, data, 0,
+ &arq->srcCallSignalAddress,
+ ct->tuplehash[!dir].tuple.dst.ip,
+ port);
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_acf(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, AdmissionConfirm * acf)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int ret = 0;
+ u_int32_t ip;
+ u_int16_t port;
+ struct ip_conntrack_expect *exp;
+
+ DEBUGP("ip_ct_ras: ACF\n");
+
+ if (!get_h225_addr(*data, &acf->destCallSignalAddress, &ip, &port))
+ return 0;
+
+ if (ip == ct->tuplehash[dir].tuple.dst.ip) { /* Answering ACF */
+ if (set_sig_addr_hook)
+ return set_sig_addr_hook(pskb, ct, ctinfo, data,
+ &acf->destCallSignalAddress,
+ 1);
+ return 0;
+ }
+
+ /* Need new expect */
+ if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+ return -1;
+ exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+ exp->tuple.src.u.tcp.port = 0;
+ exp->tuple.dst.ip = ip;
+ exp->tuple.dst.u.tcp.port = htons(port);
+ exp->tuple.dst.protonum = IPPROTO_TCP;
+ exp->mask.src.ip = 0xFFFFFFFF;
+ exp->mask.src.u.tcp.port = 0;
+ exp->mask.dst.ip = 0xFFFFFFFF;
+ exp->mask.dst.u.tcp.port = 0xFFFF;
+ exp->mask.dst.protonum = 0xFF;
+ exp->flags = IP_CT_EXPECT_PERMANENT;
+ exp->expectfn = ip_conntrack_q931_expect;
+
+ if (ip_conntrack_expect_related(exp) == 0) {
+ DEBUGP("ip_ct_ras: expect Q.931 "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
+ } else
+ ret = -1;
+
+ ip_conntrack_expect_put(exp);
+
+ return ret;
+}
+
+/****************************************************************************/
+static int process_lrq(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, LocationRequest * lrq)
+{
+ DEBUGP("ip_ct_ras: LRQ\n");
+
+ if (set_ras_addr_hook)
+ return set_ras_addr_hook(pskb, ct, ctinfo, data,
+ &lrq->replyAddress, 1);
+ return 0;
+}
+
+/****************************************************************************/
+static int process_lcf(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, LocationConfirm * lcf)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int ret = 0;
+ u_int32_t ip;
+ u_int16_t port;
+ struct ip_conntrack_expect *exp = NULL;
+
+ DEBUGP("ip_ct_ras: LCF\n");
+
+ if (!get_h225_addr(*data, &lcf->callSignalAddress, &ip, &port))
+ return 0;
+
+ /* Need new expect for call signal */
+ if ((exp = ip_conntrack_expect_alloc(ct)) == NULL)
+ return -1;
+ exp->tuple.src.ip = ct->tuplehash[!dir].tuple.src.ip;
+ exp->tuple.src.u.tcp.port = 0;
+ exp->tuple.dst.ip = ip;
+ exp->tuple.dst.u.tcp.port = htons(port);
+ exp->tuple.dst.protonum = IPPROTO_TCP;
+ exp->mask.src.ip = 0xFFFFFFFF;
+ exp->mask.src.u.tcp.port = 0;
+ exp->mask.dst.ip = 0xFFFFFFFF;
+ exp->mask.dst.u.tcp.port = 0xFFFF;
+ exp->mask.dst.protonum = 0xFF;
+ exp->flags = IP_CT_EXPECT_PERMANENT;
+ exp->expectfn = ip_conntrack_q931_expect;
+
+ if (ip_conntrack_expect_related(exp) == 0) {
+ DEBUGP("ip_ct_ras: expect Q.931 "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip),
+ ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip),
+ ntohs(exp->tuple.dst.u.tcp.port));
+ } else
+ ret = -1;
+
+ ip_conntrack_expect_put(exp);
+
+ /* Ignore rasAddress */
+
+ return ret;
+}
+
+/****************************************************************************/
+static int process_irr(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, InfoRequestResponse * irr)
+{
+ int ret;
+
+ DEBUGP("ip_ct_ras: IRR\n");
+
+ if (set_ras_addr_hook) {
+ ret = set_ras_addr_hook(pskb, ct, ctinfo, data,
+ &irr->rasAddress, 1);
+ if (ret < 0)
+ return -1;
+ }
+
+ if (set_sig_addr_hook) {
+ ret = set_sig_addr_hook(pskb, ct, ctinfo, data,
+ irr->callSignalAddress.item,
+ irr->callSignalAddress.count);
+ if (ret < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int process_ras(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, RasMessage * ras)
+{
+ switch (ras->choice) {
+ case eRasMessage_gatekeeperRequest:
+ return process_grq(pskb, ct, ctinfo, data,
+ &ras->gatekeeperRequest);
+ case eRasMessage_gatekeeperConfirm:
+ return process_gcf(pskb, ct, ctinfo, data,
+ &ras->gatekeeperConfirm);
+ case eRasMessage_registrationRequest:
+ return process_rrq(pskb, ct, ctinfo, data,
+ &ras->registrationRequest);
+ case eRasMessage_registrationConfirm:
+ return process_rcf(pskb, ct, ctinfo, data,
+ &ras->registrationConfirm);
+ case eRasMessage_unregistrationRequest:
+ return process_urq(pskb, ct, ctinfo, data,
+ &ras->unregistrationRequest);
+ case eRasMessage_admissionRequest:
+ return process_arq(pskb, ct, ctinfo, data,
+ &ras->admissionRequest);
+ case eRasMessage_admissionConfirm:
+ return process_acf(pskb, ct, ctinfo, data,
+ &ras->admissionConfirm);
+ case eRasMessage_locationRequest:
+ return process_lrq(pskb, ct, ctinfo, data,
+ &ras->locationRequest);
+ case eRasMessage_locationConfirm:
+ return process_lcf(pskb, ct, ctinfo, data,
+ &ras->locationConfirm);
+ case eRasMessage_infoRequestResponse:
+ return process_irr(pskb, ct, ctinfo, data,
+ &ras->infoRequestResponse);
+ default:
+ DEBUGP("ip_ct_ras: RAS message %d\n", ras->choice);
+ break;
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int ras_help(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo)
+{
+ static RasMessage ras;
+ unsigned char *data;
+ int datalen = 0;
+ int ret;
+
+ DEBUGP("ip_ct_ras: skblen = %u\n", (*pskb)->len);
+
+ spin_lock_bh(&ip_h323_lock);
+
+ /* Get UDP data */
+ data = get_udp_data(pskb, &datalen);
+ if (data == NULL)
+ goto accept;
+ DEBUGP("ip_ct_ras: RAS message %u.%u.%u.%u->%u.%u.%u.%u, len=%d\n",
+ NIPQUAD((*pskb)->nh.iph->saddr),
+ NIPQUAD((*pskb)->nh.iph->daddr), datalen);
+
+ /* Decode RAS message */
+ ret = DecodeRasMessage(data, datalen, &ras);
+ if (ret < 0) {
+ if (net_ratelimit())
+ printk("ip_ct_ras: decoding error: %s\n",
+ ret == H323_ERROR_BOUND ?
+ "out of bound" : "out of range");
+ goto accept;
+ }
+
+ /* Process RAS message */
+ if (process_ras(pskb, ct, ctinfo, &data, &ras) < 0)
+ goto drop;
+
+ accept:
+ spin_unlock_bh(&ip_h323_lock);
+ return NF_ACCEPT;
+
+ drop:
+ spin_unlock_bh(&ip_h323_lock);
+ if (net_ratelimit())
+ printk("ip_ct_ras: packet dropped\n");
+ return NF_DROP;
+}
+
+/****************************************************************************/
+static struct ip_conntrack_helper ip_conntrack_helper_ras = {
+ .name = "RAS",
+ .me = THIS_MODULE,
+ .max_expected = 32,
+ .timeout = 240,
+ .tuple = {.src = {.u = {__constant_htons(RAS_PORT)}},
+ .dst = {.protonum = IPPROTO_UDP}},
+ .mask = {.src = {.u = {0xFFFE}},
+ .dst = {.protonum = 0xFF}},
+ .help = ras_help,
+};
+
+/****************************************************************************/
+static void ip_conntrack_ras_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this)
+{
+ write_lock_bh(&ip_conntrack_lock);
+ new->helper = &ip_conntrack_helper_ras;
+ write_unlock_bh(&ip_conntrack_lock);
+}
+
+/****************************************************************************/
+/* Not __exit - called from init() */
+static void fini(void)
+{
+ ip_conntrack_helper_unregister(&ip_conntrack_helper_ras);
+ ip_conntrack_helper_unregister(&ip_conntrack_helper_q931);
+ kfree(h323_buffer);
+ DEBUGP("ip_ct_h323: fini\n");
+}
+
+/****************************************************************************/
+static int __init init(void)
+{
+ int ret;
+
+ h323_buffer = kmalloc(65536, GFP_KERNEL);
+ if (!h323_buffer)
+ return -ENOMEM;
+ if ((ret = ip_conntrack_helper_register(&ip_conntrack_helper_q931)) ||
+ (ret = ip_conntrack_helper_register(&ip_conntrack_helper_ras))) {
+ fini();
+ return ret;
+ }
+
+ DEBUGP("ip_ct_h323: init success\n");
+ return 0;
+}
+
+/****************************************************************************/
+module_init(init);
+module_exit(fini);
+
+EXPORT_SYMBOL(get_h245_addr);
+EXPORT_SYMBOL(get_h225_addr);
+EXPORT_SYMBOL(ip_conntrack_h245_expect);
+EXPORT_SYMBOL(ip_conntrack_q931_expect);
+EXPORT_SYMBOL(set_h245_addr_hook);
+EXPORT_SYMBOL(set_h225_addr_hook);
+EXPORT_SYMBOL(set_sig_addr_hook);
+EXPORT_SYMBOL(set_ras_addr_hook);
+EXPORT_SYMBOL(nat_rtp_rtcp_hook);
+EXPORT_SYMBOL(nat_t120_hook);
+EXPORT_SYMBOL(nat_h245_hook);
+EXPORT_SYMBOL(nat_q931_hook);
+
+MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
+MODULE_DESCRIPTION("H.323 connection tracking helper");
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.c b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.c
new file mode 100644
index 0000000..afa5251
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.c
@@ -0,0 +1,870 @@
+/****************************************************************************
+ * ip_conntrack_helper_h323_asn1.c - BER and PER decoding library for H.323
+ * conntrack/NAT module.
+ *
+ * Copyright (c) 2006 by Jing Min Zhao <zhaojingmin@hotmail.com>
+ *
+ * This source code is licensed under General Public License version 2.
+ *
+ * See ip_conntrack_helper_h323_asn1.h for details.
+ *
+ ****************************************************************************/
+
+#ifdef __KERNEL__
+#include <linux/kernel.h>
+#else
+#include <stdio.h>
+#endif
+#include "ip_conntrack_helper_h323_asn1.h"
+
+/* Trace Flag */
+#ifndef H323_TRACE
+#define H323_TRACE 0
+#endif
+
+#if H323_TRACE
+#define TAB_SIZE 4
+#define IFTHEN(cond, act) if(cond){act;}
+#ifdef __KERNEL__
+#define PRINT printk
+#else
+#define PRINT printf
+#endif
+#define FNAME(name) name,
+#else
+#define IFTHEN(cond, act)
+#define PRINT(fmt, args...)
+#define FNAME(name)
+#endif
+
+/* ASN.1 Types */
+#define NUL 0
+#define BOOL 1
+#define OID 2
+#define INT 3
+#define ENUM 4
+#define BITSTR 5
+#define NUMSTR 6
+#define NUMDGT 6
+#define TBCDSTR 6
+#define OCTSTR 7
+#define PRTSTR 7
+#define IA5STR 7
+#define GENSTR 7
+#define BMPSTR 8
+#define SEQ 9
+#define SET 9
+#define SEQOF 10
+#define SETOF 10
+#define CHOICE 11
+
+/* Constraint Types */
+#define FIXD 0
+/* #define BITS 1-8 */
+#define BYTE 9
+#define WORD 10
+#define CONS 11
+#define SEMI 12
+#define UNCO 13
+
+/* ASN.1 Type Attributes */
+#define SKIP 0
+#define STOP 1
+#define DECODE 2
+#define EXT 4
+#define OPEN 8
+#define OPT 16
+
+
+/* ASN.1 Field Structure */
+typedef struct field_t {
+#if H323_TRACE
+ char *name;
+#endif
+ unsigned char type;
+ unsigned char sz;
+ unsigned char lb;
+ unsigned char ub;
+ unsigned short attr;
+ unsigned short offset;
+ struct field_t *fields;
+} field_t;
+
+/* Bit Stream */
+typedef struct {
+ unsigned char *buf;
+ unsigned char *beg;
+ unsigned char *end;
+ unsigned char *cur;
+ unsigned bit;
+} bitstr_t;
+
+/* Tool Functions */
+#define INC_BIT(bs) if((++bs->bit)>7){bs->cur++;bs->bit=0;}
+#define INC_BITS(bs,b) if((bs->bit+=b)>7){bs->cur+=bs->bit>>3;bs->bit&=7;}
+#define BYTE_ALIGN(bs) if(bs->bit){bs->cur++;bs->bit=0;}
+#define CHECK_BOUND(bs,n) if(bs->cur+(n)>bs->end)return(H323_ERROR_BOUND)
+static unsigned get_len(bitstr_t * bs);
+static unsigned get_bit(bitstr_t * bs);
+static unsigned get_bits(bitstr_t * bs, unsigned b);
+static unsigned get_bitmap(bitstr_t * bs, unsigned b);
+static unsigned get_uint(bitstr_t * bs, int b);
+
+/* Decoder Functions */
+static int decode_nul(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_bool(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_oid(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_int(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_enum(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_bitstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_numstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_octstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_bmpstr(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_seq(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_seqof(bitstr_t * bs, field_t * f, char *base, int level);
+static int decode_choice(bitstr_t * bs, field_t * f, char *base, int level);
+
+/* Decoder Functions Vector */
+typedef int (*decoder_t) (bitstr_t *, field_t *, char *, int);
+static decoder_t Decoders[] = {
+ decode_nul,
+ decode_bool,
+ decode_oid,
+ decode_int,
+ decode_enum,
+ decode_bitstr,
+ decode_numstr,
+ decode_octstr,
+ decode_bmpstr,
+ decode_seq,
+ decode_seqof,
+ decode_choice,
+};
+
+/****************************************************************************
+ * H.323 Types
+ ****************************************************************************/
+#include "ip_conntrack_helper_h323_types.c"
+
+/****************************************************************************
+ * Functions
+ ****************************************************************************/
+/* Assume bs is aligned && v < 16384 */
+unsigned get_len(bitstr_t * bs)
+{
+ unsigned v;
+
+ v = *bs->cur++;
+
+ if (v & 0x80) {
+ v &= 0x3f;
+ v <<= 8;
+ v += *bs->cur++;
+ }
+
+ return v;
+}
+
+/****************************************************************************/
+unsigned get_bit(bitstr_t * bs)
+{
+ unsigned b = (*bs->cur) & (0x80 >> bs->bit);
+
+ INC_BIT(bs);
+
+ return b;
+}
+
+/****************************************************************************/
+/* Assume b <= 8 */
+unsigned get_bits(bitstr_t * bs, unsigned b)
+{
+ unsigned v, l;
+
+ v = (*bs->cur) & (0xffU >> bs->bit);
+ l = b + bs->bit;
+
+ if (l < 8) {
+ v >>= 8 - l;
+ bs->bit = l;
+ } else if (l == 8) {
+ bs->cur++;
+ bs->bit = 0;
+ } else { /* l > 8 */
+
+ v <<= 8;
+ v += *(++bs->cur);
+ v >>= 16 - l;
+ bs->bit = l - 8;
+ }
+
+ return v;
+}
+
+/****************************************************************************/
+/* Assume b <= 32 */
+unsigned get_bitmap(bitstr_t * bs, unsigned b)
+{
+ unsigned v, l, shift, bytes;
+
+ if (!b)
+ return 0;
+
+ l = bs->bit + b;
+
+ if (l < 8) {
+ v = (unsigned) (*bs->cur) << (bs->bit + 24);
+ bs->bit = l;
+ } else if (l == 8) {
+ v = (unsigned) (*bs->cur++) << (bs->bit + 24);
+ bs->bit = 0;
+ } else {
+ for (bytes = l >> 3, shift = 24, v = 0; bytes;
+ bytes--, shift -= 8)
+ v |= (unsigned) (*bs->cur++) << shift;
+
+ if (l < 32) {
+ v |= (unsigned) (*bs->cur) << shift;
+ v <<= bs->bit;
+ } else if (l > 32) {
+ v <<= bs->bit;
+ v |= (*bs->cur) >> (8 - bs->bit);
+ }
+
+ bs->bit = l & 0x7;
+ }
+
+ v &= 0xffffffff << (32 - b);
+
+ return v;
+}
+
+/****************************************************************************
+ * Assume bs is aligned and sizeof(unsigned int) == 4
+ ****************************************************************************/
+unsigned get_uint(bitstr_t * bs, int b)
+{
+ unsigned v = 0;
+
+ switch (b) {
+ case 4:
+ v |= *bs->cur++;
+ v <<= 8;
+ case 3:
+ v |= *bs->cur++;
+ v <<= 8;
+ case 2:
+ v |= *bs->cur++;
+ v <<= 8;
+ case 1:
+ v |= *bs->cur++;
+ break;
+ }
+ return v;
+}
+
+/****************************************************************************/
+int decode_nul(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_bool(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ INC_BIT(bs);
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_oid(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ int len;
+
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 1);
+ len = *bs->cur++;
+ bs->cur += len;
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_int(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned len;
+
+ PRINT("%*.s%s", level * TAB_SIZE, " ", f->name);
+
+ switch (f->sz) {
+ case BYTE: /* Range == 256 */
+ BYTE_ALIGN(bs);
+ bs->cur++;
+ break;
+ case WORD: /* 257 <= Range <= 64K */
+ BYTE_ALIGN(bs);
+ bs->cur += 2;
+ break;
+ case CONS: /* 64K < Range < 4G */
+ len = get_bits(bs, 2) + 1;
+ BYTE_ALIGN(bs);
+ if (base && (f->attr & DECODE)) { /* timeToLive */
+ unsigned v = get_uint(bs, len) + f->lb;
+ PRINT(" = %u", v);
+ *((unsigned *) (base + f->offset)) = v;
+ }
+ bs->cur += len;
+ break;
+ case UNCO:
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 2);
+ len = get_len(bs);
+ bs->cur += len;
+ break;
+ default: /* 2 <= Range <= 255 */
+ INC_BITS(bs, f->sz);
+ break;
+ }
+
+ PRINT("\n");
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_enum(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ if ((f->attr & EXT) && get_bit(bs)) {
+ INC_BITS(bs, 7);
+ } else {
+ INC_BITS(bs, f->sz);
+ }
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_bitstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned len;
+
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ BYTE_ALIGN(bs);
+ switch (f->sz) {
+ case FIXD: /* fixed length > 16 */
+ len = f->lb;
+ break;
+ case WORD: /* 2-byte length */
+ CHECK_BOUND(bs, 2);
+ len = (*bs->cur++) << 8;
+ len += (*bs->cur++) + f->lb;
+ break;
+ case SEMI:
+ CHECK_BOUND(bs, 2);
+ len = get_len(bs);
+ break;
+ default:
+ len = 0;
+ break;
+ }
+
+ bs->cur += len >> 3;
+ bs->bit = len & 7;
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_numstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned len;
+
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ /* 2 <= Range <= 255 */
+ len = get_bits(bs, f->sz) + f->lb;
+
+ BYTE_ALIGN(bs);
+ INC_BITS(bs, (len << 2));
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_octstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned len;
+
+ PRINT("%*.s%s", level * TAB_SIZE, " ", f->name);
+
+ switch (f->sz) {
+ case FIXD: /* Range == 1 */
+ if (f->lb > 2) {
+ BYTE_ALIGN(bs);
+ if (base && (f->attr & DECODE)) {
+ /* The IP Address */
+ IFTHEN(f->lb == 4,
+ PRINT(" = %d.%d.%d.%d:%d",
+ bs->cur[0], bs->cur[1],
+ bs->cur[2], bs->cur[3],
+ bs->cur[4] * 256 + bs->cur[5]));
+ *((unsigned *) (base + f->offset)) =
+ bs->cur - bs->buf;
+ }
+ }
+ len = f->lb;
+ break;
+ case BYTE: /* Range == 256 */
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 1);
+ len = (*bs->cur++) + f->lb;
+ break;
+ case SEMI:
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 2);
+ len = get_len(bs) + f->lb;
+ break;
+ default: /* 2 <= Range <= 255 */
+ len = get_bits(bs, f->sz) + f->lb;
+ BYTE_ALIGN(bs);
+ break;
+ }
+
+ bs->cur += len;
+
+ PRINT("\n");
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_bmpstr(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned len;
+
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ switch (f->sz) {
+ case BYTE: /* Range == 256 */
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 1);
+ len = (*bs->cur++) + f->lb;
+ break;
+ default: /* 2 <= Range <= 255 */
+ len = get_bits(bs, f->sz) + f->lb;
+ BYTE_ALIGN(bs);
+ break;
+ }
+
+ bs->cur += len << 1;
+
+ CHECK_BOUND(bs, 0);
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_seq(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned ext, bmp, i, opt, len = 0, bmp2, bmp2_len;
+ int err;
+ field_t *son;
+ unsigned char *beg = NULL;
+
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ /* Decode? */
+ base = (base && (f->attr & DECODE)) ? base + f->offset : NULL;
+
+ /* Extensible? */
+ ext = (f->attr & EXT) ? get_bit(bs) : 0;
+
+ /* Get fields bitmap */
+ bmp = get_bitmap(bs, f->sz);
+ if (base)
+ *(unsigned *) base = bmp;
+
+ /* Decode the root components */
+ for (i = opt = 0, son = f->fields; i < f->lb; i++, son++) {
+ if (son->attr & STOP) {
+ PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+ son->name);
+ return H323_ERROR_STOP;
+ }
+
+ if (son->attr & OPT) { /* Optional component */
+ if (!((0x80000000U >> (opt++)) & bmp)) /* Not exist */
+ continue;
+ }
+
+ /* Decode */
+ if (son->attr & OPEN) { /* Open field */
+ CHECK_BOUND(bs, 2);
+ len = get_len(bs);
+ CHECK_BOUND(bs, len);
+ if (!base) {
+ PRINT("%*.s%s\n", (level + 1) * TAB_SIZE,
+ " ", son->name);
+ bs->cur += len;
+ continue;
+ }
+ beg = bs->cur;
+
+ /* Decode */
+ if ((err = (Decoders[son->type]) (bs, son, base,
+ level + 1)) >
+ H323_ERROR_STOP)
+ return err;
+
+ bs->cur = beg + len;
+ bs->bit = 0;
+ } else if ((err = (Decoders[son->type]) (bs, son, base,
+ level + 1)))
+ return err;
+ }
+
+ /* No extension? */
+ if (!ext)
+ return H323_ERROR_NONE;
+
+ /* Get the extension bitmap */
+ bmp2_len = get_bits(bs, 7) + 1;
+ CHECK_BOUND(bs, (bmp2_len + 7) >> 3);
+ bmp2 = get_bitmap(bs, bmp2_len);
+ bmp |= bmp2 >> f->sz;
+ if (base)
+ *(unsigned *) base = bmp;
+ BYTE_ALIGN(bs);
+
+ /* Decode the extension components */
+ for (opt = 0; opt < bmp2_len; opt++, i++, son++) {
+ if (son->attr & STOP) {
+ PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+ son->name);
+ return H323_ERROR_STOP;
+ }
+
+ if (!((0x80000000 >> opt) & bmp2)) /* Not present */
+ continue;
+
+ /* Check Range */
+ if (i >= f->ub) { /* Newer Version? */
+ CHECK_BOUND(bs, 2);
+ len = get_len(bs);
+ CHECK_BOUND(bs, len);
+ bs->cur += len;
+ continue;
+ }
+
+ CHECK_BOUND(bs, 2);
+ len = get_len(bs);
+ CHECK_BOUND(bs, len);
+ if (!base || !(son->attr & DECODE)) {
+ PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+ son->name);
+ bs->cur += len;
+ continue;
+ }
+ beg = bs->cur;
+
+ if ((err = (Decoders[son->type]) (bs, son, base,
+ level + 1)) >
+ H323_ERROR_STOP)
+ return err;
+
+ bs->cur = beg + len;
+ bs->bit = 0;
+ }
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int decode_seqof(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned count, effective_count = 0, i, len = 0;
+ int err;
+ field_t *son;
+ unsigned char *beg = NULL;
+
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ /* Decode? */
+ base = (base && (f->attr & DECODE)) ? base + f->offset : NULL;
+
+ /* Decode item count */
+ switch (f->sz) {
+ case BYTE:
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 1);
+ count = *bs->cur++;
+ break;
+ case WORD:
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 2);
+ count = *bs->cur++;
+ count <<= 8;
+ count = *bs->cur++;
+ break;
+ case SEMI:
+ BYTE_ALIGN(bs);
+ CHECK_BOUND(bs, 2);
+ count = get_len(bs);
+ break;
+ default:
+ count = get_bits(bs, f->sz);
+ break;
+ }
+ count += f->lb;
+
+ /* Write Count */
+ if (base) {
+ effective_count = count > f->ub ? f->ub : count;
+ *(unsigned *) base = effective_count;
+ base += sizeof(unsigned);
+ }
+
+ /* Decode nested field */
+ son = f->fields;
+ if (base)
+ base -= son->offset;
+ for (i = 0; i < count; i++) {
+ if (son->attr & OPEN) {
+ BYTE_ALIGN(bs);
+ len = get_len(bs);
+ CHECK_BOUND(bs, len);
+ if (!base || !(son->attr & DECODE)) {
+ PRINT("%*.s%s\n", (level + 1) * TAB_SIZE,
+ " ", son->name);
+ bs->cur += len;
+ continue;
+ }
+ beg = bs->cur;
+
+ if ((err = (Decoders[son->type]) (bs, son,
+ i <
+ effective_count ?
+ base : NULL,
+ level + 1)) >
+ H323_ERROR_STOP)
+ return err;
+
+ bs->cur = beg + len;
+ bs->bit = 0;
+ } else
+ if ((err = (Decoders[son->type]) (bs, son,
+ i < effective_count ?
+ base : NULL,
+ level + 1)))
+ return err;
+
+ if (base)
+ base += son->offset;
+ }
+
+ return H323_ERROR_NONE;
+}
+
+
+/****************************************************************************/
+int decode_choice(bitstr_t * bs, field_t * f, char *base, int level)
+{
+ unsigned type, ext, len = 0;
+ int err;
+ field_t *son;
+ unsigned char *beg = NULL;
+
+ PRINT("%*.s%s\n", level * TAB_SIZE, " ", f->name);
+
+ /* Decode? */
+ base = (base && (f->attr & DECODE)) ? base + f->offset : NULL;
+
+ /* Decode the choice index number */
+ if ((f->attr & EXT) && get_bit(bs)) {
+ ext = 1;
+ type = get_bits(bs, 7) + f->lb;
+ } else {
+ ext = 0;
+ type = get_bits(bs, f->sz);
+ }
+
+ /* Check Range */
+ if (type >= f->ub) { /* Newer version? */
+ BYTE_ALIGN(bs);
+ len = get_len(bs);
+ CHECK_BOUND(bs, len);
+ bs->cur += len;
+ return H323_ERROR_NONE;
+ }
+
+ /* Write Type */
+ if (base)
+ *(unsigned *) base = type;
+
+ /* Transfer to son level */
+ son = &f->fields[type];
+ if (son->attr & STOP) {
+ PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ", son->name);
+ return H323_ERROR_STOP;
+ }
+
+ if (ext || (son->attr & OPEN)) {
+ BYTE_ALIGN(bs);
+ len = get_len(bs);
+ CHECK_BOUND(bs, len);
+ if (!base || !(son->attr & DECODE)) {
+ PRINT("%*.s%s\n", (level + 1) * TAB_SIZE, " ",
+ son->name);
+ bs->cur += len;
+ return H323_ERROR_NONE;
+ }
+ beg = bs->cur;
+
+ if ((err = (Decoders[son->type]) (bs, son, base, level + 1)) >
+ H323_ERROR_STOP)
+ return err;
+
+ bs->cur = beg + len;
+ bs->bit = 0;
+ } else if ((err = (Decoders[son->type]) (bs, son, base, level + 1)))
+ return err;
+
+ return H323_ERROR_NONE;
+}
+
+/****************************************************************************/
+int DecodeRasMessage(unsigned char *buf, size_t sz, RasMessage * ras)
+{
+ static field_t ras_message = {
+ FNAME("RasMessage") CHOICE, 5, 24, 32, DECODE | EXT,
+ 0, _RasMessage
+ };
+ bitstr_t bs;
+
+ bs.buf = bs.beg = bs.cur = buf;
+ bs.end = buf + sz;
+ bs.bit = 0;
+
+ return decode_choice(&bs, &ras_message, (char *) ras, 0);
+}
+
+/****************************************************************************/
+static int DecodeH323_UserInformation(unsigned char *buf, unsigned char *beg,
+ size_t sz, H323_UserInformation * uuie)
+{
+ static field_t h323_userinformation = {
+ FNAME("H323-UserInformation") SEQ, 1, 2, 2, DECODE | EXT,
+ 0, _H323_UserInformation
+ };
+ bitstr_t bs;
+
+ bs.buf = buf;
+ bs.beg = bs.cur = beg;
+ bs.end = beg + sz;
+ bs.bit = 0;
+
+ return decode_seq(&bs, &h323_userinformation, (char *) uuie, 0);
+}
+
+/****************************************************************************/
+int DecodeMultimediaSystemControlMessage(unsigned char *buf, size_t sz,
+ MultimediaSystemControlMessage *
+ mscm)
+{
+ static field_t multimediasystemcontrolmessage = {
+ FNAME("MultimediaSystemControlMessage") CHOICE, 2, 4, 4,
+ DECODE | EXT, 0, _MultimediaSystemControlMessage
+ };
+ bitstr_t bs;
+
+ bs.buf = bs.beg = bs.cur = buf;
+ bs.end = buf + sz;
+ bs.bit = 0;
+
+ return decode_choice(&bs, &multimediasystemcontrolmessage,
+ (char *) mscm, 0);
+}
+
+/****************************************************************************/
+int DecodeQ931(unsigned char *buf, size_t sz, Q931 * q931)
+{
+ unsigned char *p = buf;
+ int len;
+
+ if (!p || sz < 1)
+ return H323_ERROR_BOUND;
+
+ /* Protocol Discriminator */
+ if (*p != 0x08) {
+ PRINT("Unknown Protocol Discriminator\n");
+ return H323_ERROR_RANGE;
+ }
+ p++;
+ sz--;
+
+ /* CallReferenceValue */
+ if (sz < 1)
+ return H323_ERROR_BOUND;
+ len = *p++;
+ sz--;
+ if (sz < len)
+ return H323_ERROR_BOUND;
+ p += len;
+ sz -= len;
+
+ /* Message Type */
+ if (sz < 1)
+ return H323_ERROR_BOUND;
+ q931->MessageType = *p++;
+ PRINT("MessageType = %02X\n", q931->MessageType);
+ if (*p & 0x80) {
+ p++;
+ sz--;
+ }
+
+ /* Decode Information Elements */
+ while (sz > 0) {
+ if (*p == 0x7e) { /* UserUserIE */
+ if (sz < 3)
+ break;
+ p++;
+ len = *p++ << 8;
+ len |= *p++;
+ sz -= 3;
+ if (sz < len)
+ break;
+ p++;
+ len--;
+ return DecodeH323_UserInformation(buf, p, len,
+ &q931->UUIE);
+ }
+ p++;
+ sz--;
+ if (sz < 1)
+ break;
+ len = *p++;
+ if (sz < len)
+ break;
+ p += len;
+ sz -= len;
+ }
+
+ PRINT("Q.931 UUIE not found\n");
+
+ return H323_ERROR_BOUND;
+}
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.h b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.h
new file mode 100644
index 0000000..0bd8280
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_asn1.h
@@ -0,0 +1,98 @@
+/****************************************************************************
+ * ip_conntrack_helper_h323_asn1.h - BER and PER decoding library for H.323
+ * conntrack/NAT module.
+ *
+ * Copyright (c) 2006 by Jing Min Zhao <zhaojingmin@hotmail.com>
+ *
+ * This source code is licensed under General Public License version 2.
+ *
+ *
+ * This library is based on H.225 version 4, H.235 version 2 and H.245
+ * version 7. It is extremely optimized to decode only the absolutely
+ * necessary objects in a signal for Linux kernel NAT module use, so don't
+ * expect it to be a full ASN.1 library.
+ *
+ * Features:
+ *
+ * 1. Small. The total size of code plus data is less than 20 KB (IA32).
+ * 2. Fast. Decoding Netmeeting's Setup signal 1 million times on a PIII 866
+ * takes only 3.9 seconds.
+ * 3. No memory allocation. It uses a static object. No need to initialize or
+ * cleanup.
+ * 4. Thread safe.
+ * 5. Support embedded architectures that has no misaligned memory access
+ * support.
+ *
+ * Limitations:
+ *
+ * 1. At most 30 faststart entries. Actually this is limited by ethernet's MTU.
+ * If a Setup signal contains more than 30 faststart, the packet size will
+ * very likely exceed the MTU size, then the TPKT will be fragmented. I
+ * don't know how to handle this in a Netfilter module. Anybody can help?
+ * Although I think 30 is enough for most of the cases.
+ * 2. IPv4 addresses only.
+ *
+ ****************************************************************************/
+
+#ifndef _IP_CONNTRACK_HELPER_H323_ASN1_H_
+#define _IP_CONNTRACK_HELPER_H323_ASN1_H_
+
+/*****************************************************************************
+ * H.323 Types
+ ****************************************************************************/
+#include "ip_conntrack_helper_h323_types.h"
+
+typedef struct {
+ enum {
+ Q931_NationalEscape = 0x00,
+ Q931_Alerting = 0x01,
+ Q931_CallProceeding = 0x02,
+ Q931_Connect = 0x07,
+ Q931_ConnectAck = 0x0F,
+ Q931_Progress = 0x03,
+ Q931_Setup = 0x05,
+ Q931_SetupAck = 0x0D,
+ Q931_Resume = 0x26,
+ Q931_ResumeAck = 0x2E,
+ Q931_ResumeReject = 0x22,
+ Q931_Suspend = 0x25,
+ Q931_SuspendAck = 0x2D,
+ Q931_SuspendReject = 0x21,
+ Q931_UserInformation = 0x20,
+ Q931_Disconnect = 0x45,
+ Q931_Release = 0x4D,
+ Q931_ReleaseComplete = 0x5A,
+ Q931_Restart = 0x46,
+ Q931_RestartAck = 0x4E,
+ Q931_Segment = 0x60,
+ Q931_CongestionCtrl = 0x79,
+ Q931_Information = 0x7B,
+ Q931_Notify = 0x6E,
+ Q931_Status = 0x7D,
+ Q931_StatusEnquiry = 0x75,
+ Q931_Facility = 0x62
+ } MessageType;
+ H323_UserInformation UUIE;
+} Q931;
+
+/*****************************************************************************
+ * Decode Functions Return Codes
+ ****************************************************************************/
+
+#define H323_ERROR_NONE 0 /* Decoded successfully */
+#define H323_ERROR_STOP 1 /* Decoding stopped, not really an error */
+#define H323_ERROR_BOUND -1
+#define H323_ERROR_RANGE -2
+
+
+/*****************************************************************************
+ * Decode Functions
+ ****************************************************************************/
+
+int DecodeRasMessage(unsigned char *buf, size_t sz, RasMessage * ras);
+int DecodeQ931(unsigned char *buf, size_t sz, Q931 * q931);
+int DecodeMultimediaSystemControlMessage(unsigned char *buf, size_t sz,
+ MultimediaSystemControlMessage *
+ mscm);
+
+#endif
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_types.c b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.c
new file mode 100644
index 0000000..022c47b
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.c
@@ -0,0 +1,1926 @@
+/* Generated by Jing Min Zhao's ASN.1 parser, Mar 15 2006
+ *
+ * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
+ *
+ * This source code is licensed under General Public License version 2.
+ */
+
+static field_t _TransportAddress_ipAddress[] = { /* SEQUENCE */
+ {FNAME("ip") OCTSTR, FIXD, 4, 0, DECODE,
+ offsetof(TransportAddress_ipAddress, ip), NULL},
+ {FNAME("port") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ipSourceRoute_route[] = { /* SEQUENCE OF */
+ {FNAME("item") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ipSourceRoute_routing[] = { /* CHOICE */
+ {FNAME("strict") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("loose") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ipSourceRoute[] = { /* SEQUENCE */
+ {FNAME("ip") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+ {FNAME("port") INT, WORD, 0, 0, SKIP, 0, NULL},
+ {FNAME("route") SEQOF, SEMI, 0, 0, SKIP, 0,
+ _TransportAddress_ipSourceRoute_route},
+ {FNAME("routing") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+ _TransportAddress_ipSourceRoute_routing},
+};
+
+static field_t _TransportAddress_ipxAddress[] = { /* SEQUENCE */
+ {FNAME("node") OCTSTR, FIXD, 6, 0, SKIP, 0, NULL},
+ {FNAME("netnum") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+ {FNAME("port") OCTSTR, FIXD, 2, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress_ip6Address[] = { /* SEQUENCE */
+ {FNAME("ip") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+ {FNAME("port") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H221NonStandard[] = { /* SEQUENCE */
+ {FNAME("t35CountryCode") INT, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("t35Extension") INT, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("manufacturerCode") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _NonStandardIdentifier[] = { /* CHOICE */
+ {FNAME("object") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("h221NonStandard") SEQ, 0, 3, 3, SKIP | EXT, 0,
+ _H221NonStandard},
+};
+
+static field_t _NonStandardParameter[] = { /* SEQUENCE */
+ {FNAME("nonStandardIdentifier") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+ _NonStandardIdentifier},
+ {FNAME("data") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TransportAddress[] = { /* CHOICE */
+ {FNAME("ipAddress") SEQ, 0, 2, 2, DECODE,
+ offsetof(TransportAddress, ipAddress), _TransportAddress_ipAddress},
+ {FNAME("ipSourceRoute") SEQ, 0, 4, 4, SKIP | EXT, 0,
+ _TransportAddress_ipSourceRoute},
+ {FNAME("ipxAddress") SEQ, 0, 3, 3, SKIP, 0,
+ _TransportAddress_ipxAddress},
+ {FNAME("ip6Address") SEQ, 0, 2, 2, SKIP | EXT, 0,
+ _TransportAddress_ip6Address},
+ {FNAME("netBios") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+ {FNAME("nsap") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardAddress") SEQ, 0, 2, 2, SKIP, 0,
+ _NonStandardParameter},
+};
+
+static field_t _AliasAddress[] = { /* CHOICE */
+ {FNAME("dialedDigits") NUMDGT, 7, 1, 0, SKIP, 0, NULL},
+ {FNAME("h323-ID") BMPSTR, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("url-ID") IA5STR, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("transportID") CHOICE, 3, 7, 7, SKIP | EXT, 0, NULL},
+ {FNAME("email-ID") IA5STR, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("partyNumber") CHOICE, 3, 5, 5, SKIP | EXT, 0, NULL},
+ {FNAME("mobileUIM") CHOICE, 1, 2, 2, SKIP | EXT, 0, NULL},
+};
+
+static field_t _Setup_UUIE_sourceAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _VendorIdentifier[] = { /* SEQUENCE */
+ {FNAME("vendor") SEQ, 0, 3, 3, SKIP | EXT, 0, _H221NonStandard},
+ {FNAME("productId") OCTSTR, BYTE, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("versionId") OCTSTR, BYTE, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _GatekeeperInfo[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+};
+
+static field_t _H310Caps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H320Caps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H321Caps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H322Caps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H323Caps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H324Caps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _VoiceCaps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _T120OnlyCaps[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("dataRatesSupported") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _SupportedProtocols[] = { /* CHOICE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP, 0,
+ _NonStandardParameter},
+ {FNAME("h310") SEQ, 1, 1, 3, SKIP | EXT, 0, _H310Caps},
+ {FNAME("h320") SEQ, 1, 1, 3, SKIP | EXT, 0, _H320Caps},
+ {FNAME("h321") SEQ, 1, 1, 3, SKIP | EXT, 0, _H321Caps},
+ {FNAME("h322") SEQ, 1, 1, 3, SKIP | EXT, 0, _H322Caps},
+ {FNAME("h323") SEQ, 1, 1, 3, SKIP | EXT, 0, _H323Caps},
+ {FNAME("h324") SEQ, 1, 1, 3, SKIP | EXT, 0, _H324Caps},
+ {FNAME("voice") SEQ, 1, 1, 3, SKIP | EXT, 0, _VoiceCaps},
+ {FNAME("t120-only") SEQ, 1, 1, 3, SKIP | EXT, 0, _T120OnlyCaps},
+ {FNAME("nonStandardProtocol") SEQ, 2, 3, 3, SKIP | EXT, 0, NULL},
+ {FNAME("t38FaxAnnexbOnly") SEQ, 2, 5, 5, SKIP | EXT, 0, NULL},
+};
+
+static field_t _GatewayInfo_protocol[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 4, 9, 11, SKIP | EXT, 0, _SupportedProtocols},
+};
+
+static field_t _GatewayInfo[] = { /* SEQUENCE */
+ {FNAME("protocol") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _GatewayInfo_protocol},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+};
+
+static field_t _McuInfo[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("protocol") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _TerminalInfo[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+};
+
+static field_t _EndpointType[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("vendor") SEQ, 2, 3, 3, SKIP | EXT | OPT, 0,
+ _VendorIdentifier},
+ {FNAME("gatekeeper") SEQ, 1, 1, 1, SKIP | EXT | OPT, 0,
+ _GatekeeperInfo},
+ {FNAME("gateway") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, _GatewayInfo},
+ {FNAME("mcu") SEQ, 1, 1, 2, SKIP | EXT | OPT, 0, _McuInfo},
+ {FNAME("terminal") SEQ, 1, 1, 1, SKIP | EXT | OPT, 0, _TerminalInfo},
+ {FNAME("mc") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("undefinedNode") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("set") BITSTR, FIXD, 32, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedTunnelledProtocols") SEQOF, SEMI, 0, 0, SKIP | OPT,
+ 0, NULL},
+};
+
+static field_t _Setup_UUIE_destinationAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _Setup_UUIE_destExtraCallInfo[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _Setup_UUIE_destExtraCRV[] = { /* SEQUENCE OF */
+ {FNAME("item") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _Setup_UUIE_conferenceGoal[] = { /* CHOICE */
+ {FNAME("create") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("join") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("invite") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("capability-negotiation") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("callIndependentSupplementaryService") NUL, FIXD, 0, 0, SKIP,
+ 0, NULL},
+};
+
+static field_t _Q954Details[] = { /* SEQUENCE */
+ {FNAME("conferenceCalling") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("threePartyService") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _QseriesOptions[] = { /* SEQUENCE */
+ {FNAME("q932Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("q951Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("q952Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("q953Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("q955Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("q956Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("q957Full") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("q954Info") SEQ, 0, 2, 2, SKIP | EXT, 0, _Q954Details},
+};
+
+static field_t _CallType[] = { /* CHOICE */
+ {FNAME("pointToPoint") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("oneToN") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("nToOne") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("nToN") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H245_NonStandardIdentifier_h221NonStandard[] = { /* SEQUENCE */
+ {FNAME("t35CountryCode") INT, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("t35Extension") INT, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("manufacturerCode") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H245_NonStandardIdentifier[] = { /* CHOICE */
+ {FNAME("object") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("h221NonStandard") SEQ, 0, 3, 3, SKIP, 0,
+ _H245_NonStandardIdentifier_h221NonStandard},
+};
+
+static field_t _H245_NonStandardParameter[] = { /* SEQUENCE */
+ {FNAME("nonStandardIdentifier") CHOICE, 1, 2, 2, SKIP, 0,
+ _H245_NonStandardIdentifier},
+ {FNAME("data") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H261VideoCapability[] = { /* SEQUENCE */
+ {FNAME("qcifMPI") INT, 2, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cifMPI") INT, 2, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("temporalSpatialTradeOffCapability") BOOL, FIXD, 0, 0, SKIP, 0,
+ NULL},
+ {FNAME("maxBitRate") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("stillImageTransmission") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("videoBadMBsCap") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H262VideoCapability[] = { /* SEQUENCE */
+ {FNAME("profileAndLevel-SPatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-MPatLL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-MPatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-MPatH-14") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-MPatHL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-SNRatLL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-SNRatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-SpatialatH-14") BOOL, FIXD, 0, 0, SKIP, 0,
+ NULL},
+ {FNAME("profileAndLevel-HPatML") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-HPatH-14") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("profileAndLevel-HPatHL") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("videoBitRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("vbvBufferSize") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("samplesPerLine") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("linesPerFrame") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("framesPerSecond") INT, 4, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("luminanceSampleRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("videoBadMBsCap") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H263VideoCapability[] = { /* SEQUENCE */
+ {FNAME("sqcifMPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("qcifMPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cifMPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cif4MPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cif16MPI") INT, 5, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("maxBitRate") INT, CONS, 1, 0, SKIP, 0, NULL},
+ {FNAME("unrestrictedVector") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("arithmeticCoding") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("advancedPrediction") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("pbFrames") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("temporalSpatialTradeOffCapability") BOOL, FIXD, 0, 0, SKIP, 0,
+ NULL},
+ {FNAME("hrd-B") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("bppMaxKb") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("slowSqcifMPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("slowQcifMPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("slowCifMPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("slowCif4MPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("slowCif16MPI") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("errorCompensation") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("enhancementLayerInfo") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("h263Options") SEQ, 5, 29, 31, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _IS11172VideoCapability[] = { /* SEQUENCE */
+ {FNAME("constrainedBitstream") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("videoBitRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("vbvBufferSize") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("samplesPerLine") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("linesPerFrame") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("pictureRate") INT, 4, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("luminanceSampleRate") INT, CONS, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("videoBadMBsCap") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _VideoCapability[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+ _H245_NonStandardParameter},
+ {FNAME("h261VideoCapability") SEQ, 2, 5, 6, SKIP | EXT, 0,
+ _H261VideoCapability},
+ {FNAME("h262VideoCapability") SEQ, 6, 17, 18, SKIP | EXT, 0,
+ _H262VideoCapability},
+ {FNAME("h263VideoCapability") SEQ, 7, 13, 21, SKIP | EXT, 0,
+ _H263VideoCapability},
+ {FNAME("is11172VideoCapability") SEQ, 6, 7, 8, SKIP | EXT, 0,
+ _IS11172VideoCapability},
+ {FNAME("genericVideoCapability") SEQ, 5, 6, 6, SKIP | EXT, 0, NULL},
+};
+
+static field_t _AudioCapability_g7231[] = { /* SEQUENCE */
+ {FNAME("maxAl-sduAudioFrames") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("silenceSuppression") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _IS11172AudioCapability[] = { /* SEQUENCE */
+ {FNAME("audioLayer1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioLayer2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioLayer3") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling32k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling44k1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling48k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("singleChannel") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("twoChannels") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("bitRate") INT, WORD, 1, 0, SKIP, 0, NULL},
+};
+
+static field_t _IS13818AudioCapability[] = { /* SEQUENCE */
+ {FNAME("audioLayer1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioLayer2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioLayer3") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling16k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling22k05") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling24k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling32k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling44k1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("audioSampling48k") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("singleChannel") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("twoChannels") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("threeChannels2-1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("threeChannels3-0") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fourChannels2-0-2-0") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fourChannels2-2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fourChannels3-1") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fiveChannels3-0-2-0") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fiveChannels3-2") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("lowFrequencyEnhancement") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("multilingual") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("bitRate") INT, WORD, 1, 0, SKIP, 0, NULL},
+};
+
+static field_t _AudioCapability[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+ _H245_NonStandardParameter},
+ {FNAME("g711Alaw64k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g711Alaw56k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g711Ulaw64k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g711Ulaw56k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g722-64k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g722-56k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g722-48k") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g7231") SEQ, 0, 2, 2, SKIP, 0, _AudioCapability_g7231},
+ {FNAME("g728") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g729") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g729AnnexA") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("is11172AudioCapability") SEQ, 0, 9, 9, SKIP | EXT, 0,
+ _IS11172AudioCapability},
+ {FNAME("is13818AudioCapability") SEQ, 0, 21, 21, SKIP | EXT, 0,
+ _IS13818AudioCapability},
+ {FNAME("g729wAnnexB") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g729AnnexAwAnnexB") INT, BYTE, 1, 0, SKIP, 0, NULL},
+ {FNAME("g7231AnnexCCapability") SEQ, 1, 3, 3, SKIP | EXT, 0, NULL},
+ {FNAME("gsmFullRate") SEQ, 0, 3, 3, SKIP | EXT, 0, NULL},
+ {FNAME("gsmHalfRate") SEQ, 0, 3, 3, SKIP | EXT, 0, NULL},
+ {FNAME("gsmEnhancedFullRate") SEQ, 0, 3, 3, SKIP | EXT, 0, NULL},
+ {FNAME("genericAudioCapability") SEQ, 5, 6, 6, SKIP | EXT, 0, NULL},
+ {FNAME("g729Extensions") SEQ, 1, 8, 8, SKIP | EXT, 0, NULL},
+};
+
+static field_t _DataProtocolCapability[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+ _H245_NonStandardParameter},
+ {FNAME("v14buffered") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("v42lapm") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("hdlcFrameTunnelling") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("h310SeparateVCStack") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("h310SingleVCStack") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("transparent") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("segmentationAndReassembly") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("hdlcFrameTunnelingwSAR") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("v120") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("separateLANStack") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("v76wCompression") CHOICE, 2, 3, 3, SKIP | EXT, 0, NULL},
+ {FNAME("tcp") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("udp") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _T84Profile_t84Restricted[] = { /* SEQUENCE */
+ {FNAME("qcif") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("cif") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("ccir601Seq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("ccir601Prog") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("hdtvSeq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("hdtvProg") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("g3FacsMH200x100") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("g3FacsMH200x200") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("g4FacsMMR200x100") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("g4FacsMMR200x200") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("jbig200x200Seq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("jbig200x200Prog") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("jbig300x300Seq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("jbig300x300Prog") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("digPhotoLow") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("digPhotoMedSeq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("digPhotoMedProg") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("digPhotoHighSeq") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("digPhotoHighProg") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _T84Profile[] = { /* CHOICE */
+ {FNAME("t84Unrestricted") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("t84Restricted") SEQ, 0, 19, 19, SKIP | EXT, 0,
+ _T84Profile_t84Restricted},
+};
+
+static field_t _DataApplicationCapability_application_t84[] = { /* SEQUENCE */
+ {FNAME("t84Protocol") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+ _DataProtocolCapability},
+ {FNAME("t84Profile") CHOICE, 1, 2, 2, SKIP, 0, _T84Profile},
+};
+
+static field_t _DataApplicationCapability_application_nlpid[] = { /* SEQUENCE */
+ {FNAME("nlpidProtocol") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+ _DataProtocolCapability},
+ {FNAME("nlpidData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _DataApplicationCapability_application[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+ _H245_NonStandardParameter},
+ {FNAME("t120") CHOICE, 3, 7, 14, DECODE | EXT,
+ offsetof(DataApplicationCapability_application, t120),
+ _DataProtocolCapability},
+ {FNAME("dsm-cc") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+ _DataProtocolCapability},
+ {FNAME("userData") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+ _DataProtocolCapability},
+ {FNAME("t84") SEQ, 0, 2, 2, SKIP, 0,
+ _DataApplicationCapability_application_t84},
+ {FNAME("t434") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+ _DataProtocolCapability},
+ {FNAME("h224") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+ _DataProtocolCapability},
+ {FNAME("nlpid") SEQ, 0, 2, 2, SKIP, 0,
+ _DataApplicationCapability_application_nlpid},
+ {FNAME("dsvdControl") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("h222DataPartitioning") CHOICE, 3, 7, 14, SKIP | EXT, 0,
+ _DataProtocolCapability},
+ {FNAME("t30fax") CHOICE, 3, 7, 14, SKIP | EXT, 0, NULL},
+ {FNAME("t140") CHOICE, 3, 7, 14, SKIP | EXT, 0, NULL},
+ {FNAME("t38fax") SEQ, 0, 2, 2, SKIP, 0, NULL},
+ {FNAME("genericDataCapability") SEQ, 5, 6, 6, SKIP | EXT, 0, NULL},
+};
+
+static field_t _DataApplicationCapability[] = { /* SEQUENCE */
+ {FNAME("application") CHOICE, 4, 10, 14, DECODE | EXT,
+ offsetof(DataApplicationCapability, application),
+ _DataApplicationCapability_application},
+ {FNAME("maxBitRate") INT, CONS, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _EncryptionMode[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+ _H245_NonStandardParameter},
+ {FNAME("h233Encryption") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _DataType[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+ _H245_NonStandardParameter},
+ {FNAME("nullData") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("videoData") CHOICE, 3, 5, 6, SKIP | EXT, 0, _VideoCapability},
+ {FNAME("audioData") CHOICE, 4, 14, 22, SKIP | EXT, 0,
+ _AudioCapability},
+ {FNAME("data") SEQ, 0, 2, 2, DECODE | EXT, offsetof(DataType, data),
+ _DataApplicationCapability},
+ {FNAME("encryptionData") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+ _EncryptionMode},
+ {FNAME("h235Control") SEQ, 0, 2, 2, SKIP, 0, NULL},
+ {FNAME("h235Media") SEQ, 0, 2, 2, SKIP | EXT, 0, NULL},
+ {FNAME("multiplexedStream") SEQ, 0, 2, 2, SKIP | EXT, 0, NULL},
+};
+
+static field_t _H222LogicalChannelParameters[] = { /* SEQUENCE */
+ {FNAME("resourceID") INT, WORD, 0, 0, SKIP, 0, NULL},
+ {FNAME("subChannelID") INT, WORD, 0, 0, SKIP, 0, NULL},
+ {FNAME("pcr-pid") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("programDescriptors") OCTSTR, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("streamDescriptors") OCTSTR, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _H223LogicalChannelParameters_adaptationLayerType_al3[] = { /* SEQUENCE */
+ {FNAME("controlFieldOctets") INT, 2, 0, 0, SKIP, 0, NULL},
+ {FNAME("sendBufferSize") INT, CONS, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H223LogicalChannelParameters_adaptationLayerType[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0,
+ _H245_NonStandardParameter},
+ {FNAME("al1Framed") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("al1NotFramed") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("al2WithoutSequenceNumbers") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("al2WithSequenceNumbers") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("al3") SEQ, 0, 2, 2, SKIP, 0,
+ _H223LogicalChannelParameters_adaptationLayerType_al3},
+ {FNAME("al1M") SEQ, 0, 7, 8, SKIP | EXT, 0, NULL},
+ {FNAME("al2M") SEQ, 0, 2, 2, SKIP | EXT, 0, NULL},
+ {FNAME("al3M") SEQ, 0, 5, 6, SKIP | EXT, 0, NULL},
+};
+
+static field_t _H223LogicalChannelParameters[] = { /* SEQUENCE */
+ {FNAME("adaptationLayerType") CHOICE, 3, 6, 9, SKIP | EXT, 0,
+ _H223LogicalChannelParameters_adaptationLayerType},
+ {FNAME("segmentableFlag") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CRCLength[] = { /* CHOICE */
+ {FNAME("crc8bit") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("crc16bit") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("crc32bit") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76HDLCParameters[] = { /* SEQUENCE */
+ {FNAME("crcLength") CHOICE, 2, 3, 3, SKIP | EXT, 0, _CRCLength},
+ {FNAME("n401") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("loopbackTestProcedure") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters_suspendResume[] = { /* CHOICE */
+ {FNAME("noSuspendResume") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("suspendResumewAddress") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("suspendResumewoAddress") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters_mode_eRM_recovery[] = { /* CHOICE */
+ {FNAME("rej") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("sREJ") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("mSREJ") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters_mode_eRM[] = { /* SEQUENCE */
+ {FNAME("windowSize") INT, 7, 1, 0, SKIP, 0, NULL},
+ {FNAME("recovery") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+ _V76LogicalChannelParameters_mode_eRM_recovery},
+};
+
+static field_t _V76LogicalChannelParameters_mode[] = { /* CHOICE */
+ {FNAME("eRM") SEQ, 0, 2, 2, SKIP | EXT, 0,
+ _V76LogicalChannelParameters_mode_eRM},
+ {FNAME("uNERM") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V75Parameters[] = { /* SEQUENCE */
+ {FNAME("audioHeaderPresent") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _V76LogicalChannelParameters[] = { /* SEQUENCE */
+ {FNAME("hdlcParameters") SEQ, 0, 3, 3, SKIP | EXT, 0,
+ _V76HDLCParameters},
+ {FNAME("suspendResume") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+ _V76LogicalChannelParameters_suspendResume},
+ {FNAME("uIH") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("mode") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+ _V76LogicalChannelParameters_mode},
+ {FNAME("v75Parameters") SEQ, 0, 1, 1, SKIP | EXT, 0, _V75Parameters},
+};
+
+static field_t _H2250LogicalChannelParameters_nonStandard[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 0, 2, 2, SKIP, 0, _H245_NonStandardParameter},
+};
+
+static field_t _UnicastAddress_iPAddress[] = { /* SEQUENCE */
+ {FNAME("network") OCTSTR, FIXD, 4, 0, DECODE,
+ offsetof(UnicastAddress_iPAddress, network), NULL},
+ {FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPXAddress[] = { /* SEQUENCE */
+ {FNAME("node") OCTSTR, FIXD, 6, 0, SKIP, 0, NULL},
+ {FNAME("netnum") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+ {FNAME("tsapIdentifier") OCTSTR, FIXD, 2, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iP6Address[] = { /* SEQUENCE */
+ {FNAME("network") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+ {FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPSourceRouteAddress_routing[] = { /* CHOICE */
+ {FNAME("strict") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("loose") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPSourceRouteAddress_route[] = { /* SEQUENCE OF */
+ {FNAME("item") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+};
+
+static field_t _UnicastAddress_iPSourceRouteAddress[] = { /* SEQUENCE */
+ {FNAME("routing") CHOICE, 1, 2, 2, SKIP, 0,
+ _UnicastAddress_iPSourceRouteAddress_routing},
+ {FNAME("network") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+ {FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+ {FNAME("route") SEQOF, SEMI, 0, 0, SKIP, 0,
+ _UnicastAddress_iPSourceRouteAddress_route},
+};
+
+static field_t _UnicastAddress[] = { /* CHOICE */
+ {FNAME("iPAddress") SEQ, 0, 2, 2, DECODE | EXT,
+ offsetof(UnicastAddress, iPAddress), _UnicastAddress_iPAddress},
+ {FNAME("iPXAddress") SEQ, 0, 3, 3, SKIP | EXT, 0,
+ _UnicastAddress_iPXAddress},
+ {FNAME("iP6Address") SEQ, 0, 2, 2, SKIP | EXT, 0,
+ _UnicastAddress_iP6Address},
+ {FNAME("netBios") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+ {FNAME("iPSourceRouteAddress") SEQ, 0, 4, 4, SKIP | EXT, 0,
+ _UnicastAddress_iPSourceRouteAddress},
+ {FNAME("nsap") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardAddress") SEQ, 0, 2, 2, SKIP, 0, NULL},
+};
+
+static field_t _MulticastAddress_iPAddress[] = { /* SEQUENCE */
+ {FNAME("network") OCTSTR, FIXD, 4, 0, SKIP, 0, NULL},
+ {FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _MulticastAddress_iP6Address[] = { /* SEQUENCE */
+ {FNAME("network") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+ {FNAME("tsapIdentifier") INT, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _MulticastAddress[] = { /* CHOICE */
+ {FNAME("iPAddress") SEQ, 0, 2, 2, SKIP | EXT, 0,
+ _MulticastAddress_iPAddress},
+ {FNAME("iP6Address") SEQ, 0, 2, 2, SKIP | EXT, 0,
+ _MulticastAddress_iP6Address},
+ {FNAME("nsap") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardAddress") SEQ, 0, 2, 2, SKIP, 0, NULL},
+};
+
+static field_t _H245_TransportAddress[] = { /* CHOICE */
+ {FNAME("unicastAddress") CHOICE, 3, 5, 7, DECODE | EXT,
+ offsetof(H245_TransportAddress, unicastAddress), _UnicastAddress},
+ {FNAME("multicastAddress") CHOICE, 1, 2, 4, SKIP | EXT, 0,
+ _MulticastAddress},
+};
+
+static field_t _H2250LogicalChannelParameters[] = { /* SEQUENCE */
+ {FNAME("nonStandard") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _H2250LogicalChannelParameters_nonStandard},
+ {FNAME("sessionID") INT, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("associatedSessionID") INT, 8, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("mediaChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+ offsetof(H2250LogicalChannelParameters, mediaChannel),
+ _H245_TransportAddress},
+ {FNAME("mediaGuaranteedDelivery") BOOL, FIXD, 0, 0, SKIP | OPT, 0,
+ NULL},
+ {FNAME("mediaControlChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+ offsetof(H2250LogicalChannelParameters, mediaControlChannel),
+ _H245_TransportAddress},
+ {FNAME("mediaControlGuaranteedDelivery") BOOL, FIXD, 0, 0, STOP | OPT,
+ 0, NULL},
+ {FNAME("silenceSuppression") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("destination") SEQ, 0, 2, 2, STOP | EXT | OPT, 0, NULL},
+ {FNAME("dynamicRTPPayloadType") INT, 5, 96, 0, STOP | OPT, 0, NULL},
+ {FNAME("mediaPacketization") CHOICE, 0, 1, 2, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("transportCapability") SEQ, 3, 3, 3, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("redundancyEncoding") SEQ, 1, 2, 2, STOP | EXT | OPT, 0, NULL},
+ {FNAME("source") SEQ, 0, 2, 2, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters[] = { /* CHOICE */
+ {FNAME("h222LogicalChannelParameters") SEQ, 3, 5, 5, SKIP | EXT, 0,
+ _H222LogicalChannelParameters},
+ {FNAME("h223LogicalChannelParameters") SEQ, 0, 2, 2, SKIP | EXT, 0,
+ _H223LogicalChannelParameters},
+ {FNAME("v76LogicalChannelParameters") SEQ, 0, 5, 5, SKIP | EXT, 0,
+ _V76LogicalChannelParameters},
+ {FNAME("h2250LogicalChannelParameters") SEQ, 10, 11, 14, DECODE | EXT,
+ offsetof
+ (OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters,
+ h2250LogicalChannelParameters), _H2250LogicalChannelParameters},
+ {FNAME("none") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _OpenLogicalChannel_forwardLogicalChannelParameters[] = { /* SEQUENCE */
+ {FNAME("portNumber") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("dataType") CHOICE, 3, 6, 9, DECODE | EXT,
+ offsetof(OpenLogicalChannel_forwardLogicalChannelParameters,
+ dataType), _DataType},
+ {FNAME("multiplexParameters") CHOICE, 2, 3, 5, DECODE | EXT,
+ offsetof(OpenLogicalChannel_forwardLogicalChannelParameters,
+ multiplexParameters),
+ _OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters},
+ {FNAME("forwardLogicalChannelDependency") INT, WORD, 1, 0, SKIP | OPT,
+ 0, NULL},
+ {FNAME("replacementFor") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters[] = { /* CHOICE */
+ {FNAME("h223LogicalChannelParameters") SEQ, 0, 2, 2, SKIP | EXT, 0,
+ _H223LogicalChannelParameters},
+ {FNAME("v76LogicalChannelParameters") SEQ, 0, 5, 5, SKIP | EXT, 0,
+ _V76LogicalChannelParameters},
+ {FNAME("h2250LogicalChannelParameters") SEQ, 10, 11, 14, DECODE | EXT,
+ offsetof
+ (OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters,
+ h2250LogicalChannelParameters), _H2250LogicalChannelParameters},
+};
+
+static field_t _OpenLogicalChannel_reverseLogicalChannelParameters[] = { /* SEQUENCE */
+ {FNAME("dataType") CHOICE, 3, 6, 9, SKIP | EXT, 0, _DataType},
+ {FNAME("multiplexParameters") CHOICE, 1, 2, 3, DECODE | EXT | OPT,
+ offsetof(OpenLogicalChannel_reverseLogicalChannelParameters,
+ multiplexParameters),
+ _OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters},
+ {FNAME("reverseLogicalChannelDependency") INT, WORD, 1, 0, SKIP | OPT,
+ 0, NULL},
+ {FNAME("replacementFor") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _NetworkAccessParameters_distribution[] = { /* CHOICE */
+ {FNAME("unicast") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("multicast") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _Q2931Address_address[] = { /* CHOICE */
+ {FNAME("internationalNumber") NUMSTR, 4, 1, 0, SKIP, 0, NULL},
+ {FNAME("nsapAddress") OCTSTR, 5, 1, 0, SKIP, 0, NULL},
+};
+
+static field_t _Q2931Address[] = { /* SEQUENCE */
+ {FNAME("address") CHOICE, 1, 2, 2, SKIP | EXT, 0,
+ _Q2931Address_address},
+ {FNAME("subaddress") OCTSTR, 5, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _NetworkAccessParameters_networkAddress[] = { /* CHOICE */
+ {FNAME("q2931Address") SEQ, 1, 2, 2, SKIP | EXT, 0, _Q2931Address},
+ {FNAME("e164Address") NUMDGT, 7, 1, 0, SKIP, 0, NULL},
+ {FNAME("localAreaAddress") CHOICE, 1, 2, 2, DECODE | EXT,
+ offsetof(NetworkAccessParameters_networkAddress, localAreaAddress),
+ _H245_TransportAddress},
+};
+
+static field_t _NetworkAccessParameters[] = { /* SEQUENCE */
+ {FNAME("distribution") CHOICE, 1, 2, 2, SKIP | EXT | OPT, 0,
+ _NetworkAccessParameters_distribution},
+ {FNAME("networkAddress") CHOICE, 2, 3, 3, DECODE | EXT,
+ offsetof(NetworkAccessParameters, networkAddress),
+ _NetworkAccessParameters_networkAddress},
+ {FNAME("associateConference") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("externalReference") OCTSTR, 8, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("t120SetupProcedure") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+ NULL},
+};
+
+static field_t _OpenLogicalChannel[] = { /* SEQUENCE */
+ {FNAME("forwardLogicalChannelNumber") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("forwardLogicalChannelParameters") SEQ, 1, 3, 5, DECODE | EXT,
+ offsetof(OpenLogicalChannel, forwardLogicalChannelParameters),
+ _OpenLogicalChannel_forwardLogicalChannelParameters},
+ {FNAME("reverseLogicalChannelParameters") SEQ, 1, 2, 4,
+ DECODE | EXT | OPT, offsetof(OpenLogicalChannel,
+ reverseLogicalChannelParameters),
+ _OpenLogicalChannel_reverseLogicalChannelParameters},
+ {FNAME("separateStack") SEQ, 2, 4, 5, DECODE | EXT | OPT,
+ offsetof(OpenLogicalChannel, separateStack),
+ _NetworkAccessParameters},
+ {FNAME("encryptionSync") SEQ, 2, 4, 4, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Setup_UUIE_fastStart[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+ sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+ ,
+};
+
+static field_t _Setup_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(Setup_UUIE, h245Address), _TransportAddress},
+ {FNAME("sourceAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _Setup_UUIE_sourceAddress},
+ {FNAME("sourceInfo") SEQ, 6, 8, 10, SKIP | EXT, 0, _EndpointType},
+ {FNAME("destinationAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _Setup_UUIE_destinationAddress},
+ {FNAME("destCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(Setup_UUIE, destCallSignalAddress), _TransportAddress},
+ {FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _Setup_UUIE_destExtraCallInfo},
+ {FNAME("destExtraCRV") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _Setup_UUIE_destExtraCRV},
+ {FNAME("activeMC") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("conferenceID") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+ {FNAME("conferenceGoal") CHOICE, 2, 3, 5, SKIP | EXT, 0,
+ _Setup_UUIE_conferenceGoal},
+ {FNAME("callServices") SEQ, 0, 8, 8, SKIP | EXT | OPT, 0,
+ _QseriesOptions},
+ {FNAME("callType") CHOICE, 2, 4, 4, SKIP | EXT, 0, _CallType},
+ {FNAME("sourceCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(Setup_UUIE, sourceCallSignalAddress), _TransportAddress},
+ {FNAME("remoteExtensionAddress") CHOICE, 1, 2, 7, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+ {FNAME("h245SecurityCapability") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+ offsetof(Setup_UUIE, fastStart), _Setup_UUIE_fastStart},
+ {FNAME("mediaWaitForConnect") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("canOverlapSend") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("connectionParameters") SEQ, 0, 3, 3, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("language") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("symmetricOperationRequired") NUL, FIXD, 0, 0, SKIP | OPT, 0,
+ NULL},
+ {FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("circuitInfo") SEQ, 3, 3, 3, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("desiredProtocols") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("neededFeatures") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("desiredFeatures") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("supportedFeatures") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("parallelH245Control") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("additionalSourceAddresses") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ NULL},
+};
+
+static field_t _CallProceeding_UUIE_fastStart[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+ sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+ ,
+};
+
+static field_t _CallProceeding_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+ _EndpointType},
+ {FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(CallProceeding_UUIE, h245Address), _TransportAddress},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+ {FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+ offsetof(CallProceeding_UUIE, fastStart),
+ _CallProceeding_UUIE_fastStart},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Connect_UUIE_fastStart[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+ sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+ ,
+};
+
+static field_t _Connect_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(Connect_UUIE, h245Address), _TransportAddress},
+ {FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+ _EndpointType},
+ {FNAME("conferenceID") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+ {FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+ offsetof(Connect_UUIE, fastStart), _Connect_UUIE_fastStart},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("language") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("connectedAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Alerting_UUIE_fastStart[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+ sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+ ,
+};
+
+static field_t _Alerting_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+ _EndpointType},
+ {FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(Alerting_UUIE, h245Address), _TransportAddress},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+ {FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+ offsetof(Alerting_UUIE, fastStart), _Alerting_UUIE_fastStart},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("alertingAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Information_UUIE_fastStart[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+ sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+ ,
+};
+
+static field_t _Information_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+ offsetof(Information_UUIE, fastStart), _Information_UUIE_fastStart},
+ {FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("circuitInfo") SEQ, 3, 3, 3, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _ReleaseCompleteReason[] = { /* CHOICE */
+ {FNAME("noBandwidth") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("gatekeeperResources") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("unreachableDestination") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("destinationRejection") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("invalidRevision") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("noPermission") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("unreachableGatekeeper") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("gatewayResources") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("badFormatAddress") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("adaptiveBusy") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("inConf") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("undefinedReason") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("facilityCallDeflection") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("securityDenied") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("calledPartyNotRegistered") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("callerNotRegistered") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("newConnectionNeeded") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardReason") SEQ, 0, 2, 2, SKIP, 0, NULL},
+ {FNAME("replaceWithConferenceInvite") OCTSTR, FIXD, 16, 0, SKIP, 0,
+ NULL},
+ {FNAME("genericDataReason") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("neededFeatureNotSupported") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("tunnelledSignallingRejected") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _ReleaseComplete_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("reason") CHOICE, 4, 12, 22, SKIP | EXT | OPT, 0,
+ _ReleaseCompleteReason},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("busyAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("presentationIndicator") CHOICE, 2, 3, 3, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("screeningIndicator") ENUM, 2, 0, 0, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("capacity") SEQ, 2, 2, 2, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+};
+
+static field_t _Facility_UUIE_alternativeAliasAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _FacilityReason[] = { /* CHOICE */
+ {FNAME("routeCallToGatekeeper") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("callForwarded") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("routeCallToMC") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("undefinedReason") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("conferenceListChoice") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("startH245") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("noH245") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("newTokens") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("featureSetUpdate") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("forwardedElements") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("transportedInformation") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _Facility_UUIE_fastStart[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+ sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+ ,
+};
+
+static field_t _Facility_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("alternativeAddress") CHOICE, 3, 7, 7, SKIP | EXT | OPT, 0,
+ _TransportAddress},
+ {FNAME("alternativeAliasAddress") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _Facility_UUIE_alternativeAliasAddress},
+ {FNAME("conferenceID") OCTSTR, FIXD, 16, 0, SKIP | OPT, 0, NULL},
+ {FNAME("reason") CHOICE, 2, 4, 11, DECODE | EXT,
+ offsetof(Facility_UUIE, reason), _FacilityReason},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0, NULL},
+ {FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("remoteExtensionAddress") CHOICE, 1, 2, 7, SKIP | EXT | OPT, 0,
+ NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("conferences") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(Facility_UUIE, h245Address), _TransportAddress},
+ {FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+ offsetof(Facility_UUIE, fastStart), _Facility_UUIE_fastStart},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("circuitInfo") SEQ, 3, 3, 3, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+ NULL},
+};
+
+static field_t _CallIdentifier[] = { /* SEQUENCE */
+ {FNAME("guid") OCTSTR, FIXD, 16, 0, SKIP, 0, NULL},
+};
+
+static field_t _SecurityServiceMode[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0, _NonStandardParameter},
+ {FNAME("none") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("default") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _SecurityCapabilities[] = { /* SEQUENCE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("encryption") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+ _SecurityServiceMode},
+ {FNAME("authenticaton") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+ _SecurityServiceMode},
+ {FNAME("integrity") CHOICE, 2, 3, 3, SKIP | EXT, 0,
+ _SecurityServiceMode},
+};
+
+static field_t _H245Security[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP, 0, _NonStandardParameter},
+ {FNAME("noSecurity") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("tls") SEQ, 1, 4, 4, SKIP | EXT, 0, _SecurityCapabilities},
+ {FNAME("ipsec") SEQ, 1, 4, 4, SKIP | EXT, 0, _SecurityCapabilities},
+};
+
+static field_t _DHset[] = { /* SEQUENCE */
+ {FNAME("halfkey") BITSTR, WORD, 0, 0, SKIP, 0, NULL},
+ {FNAME("modSize") BITSTR, WORD, 0, 0, SKIP, 0, NULL},
+ {FNAME("generator") BITSTR, WORD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _TypedCertificate[] = { /* SEQUENCE */
+ {FNAME("type") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("certificate") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _H235_NonStandardParameter[] = { /* SEQUENCE */
+ {FNAME("nonStandardIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("data") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _ClearToken[] = { /* SEQUENCE */
+ {FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("timeStamp") INT, CONS, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("password") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("dhkey") SEQ, 0, 3, 3, SKIP | EXT | OPT, 0, _DHset},
+ {FNAME("challenge") OCTSTR, 7, 8, 0, SKIP | OPT, 0, NULL},
+ {FNAME("random") INT, UNCO, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("certificate") SEQ, 0, 2, 2, SKIP | EXT | OPT, 0,
+ _TypedCertificate},
+ {FNAME("generalID") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("nonStandard") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _H235_NonStandardParameter},
+ {FNAME("eckasdhkey") CHOICE, 1, 2, 2, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("sendersID") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _Progress_UUIE_tokens[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 8, 9, 11, SKIP | EXT, 0, _ClearToken},
+};
+
+static field_t _Params[] = { /* SEQUENCE */
+ {FNAME("ranInt") INT, UNCO, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("iv8") OCTSTR, FIXD, 8, 0, SKIP | OPT, 0, NULL},
+ {FNAME("iv16") OCTSTR, FIXD, 16, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoEPPwdHash_token[] = { /* SEQUENCE */
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("hash") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoEPPwdHash[] = { /* SEQUENCE */
+ {FNAME("alias") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+ {FNAME("timeStamp") INT, CONS, 1, 0, SKIP, 0, NULL},
+ {FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoH323Token_cryptoEPPwdHash_token},
+};
+
+static field_t _CryptoH323Token_cryptoGKPwdHash_token[] = { /* SEQUENCE */
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("hash") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoGKPwdHash[] = { /* SEQUENCE */
+ {FNAME("gatekeeperId") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+ {FNAME("timeStamp") INT, CONS, 1, 0, SKIP, 0, NULL},
+ {FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoH323Token_cryptoGKPwdHash_token},
+};
+
+static field_t _CryptoH323Token_cryptoEPPwdEncr[] = { /* SEQUENCE */
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoGKPwdEncr[] = { /* SEQUENCE */
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoEPCert[] = { /* SEQUENCE */
+ {FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoGKCert[] = { /* SEQUENCE */
+ {FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoH323Token_cryptoFastStart[] = { /* SEQUENCE */
+ {FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoEncryptedToken_token[] = { /* SEQUENCE */
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoEncryptedToken[] = { /* SEQUENCE */
+ {FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoToken_cryptoEncryptedToken_token},
+};
+
+static field_t _CryptoToken_cryptoSignedToken_token[] = { /* SEQUENCE */
+ {FNAME("toBeSigned") SEQ, 8, 9, 11, SKIP | OPEN | EXT, 0, NULL},
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("signature") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoSignedToken[] = { /* SEQUENCE */
+ {FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("token") SEQ, 0, 4, 4, SKIP, 0,
+ _CryptoToken_cryptoSignedToken_token},
+};
+
+static field_t _CryptoToken_cryptoHashedToken_token[] = { /* SEQUENCE */
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("hash") BITSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken_cryptoHashedToken[] = { /* SEQUENCE */
+ {FNAME("tokenOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("hashedVals") SEQ, 8, 9, 11, SKIP | EXT, 0, _ClearToken},
+ {FNAME("token") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoToken_cryptoHashedToken_token},
+};
+
+static field_t _CryptoToken_cryptoPwdEncr[] = { /* SEQUENCE */
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("paramS") SEQ, 2, 2, 3, SKIP | EXT, 0, _Params},
+ {FNAME("encryptedData") OCTSTR, SEMI, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _CryptoToken[] = { /* CHOICE */
+ {FNAME("cryptoEncryptedToken") SEQ, 0, 2, 2, SKIP, 0,
+ _CryptoToken_cryptoEncryptedToken},
+ {FNAME("cryptoSignedToken") SEQ, 0, 2, 2, SKIP, 0,
+ _CryptoToken_cryptoSignedToken},
+ {FNAME("cryptoHashedToken") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoToken_cryptoHashedToken},
+ {FNAME("cryptoPwdEncr") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoToken_cryptoPwdEncr},
+};
+
+static field_t _CryptoH323Token[] = { /* CHOICE */
+ {FNAME("cryptoEPPwdHash") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoH323Token_cryptoEPPwdHash},
+ {FNAME("cryptoGKPwdHash") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoH323Token_cryptoGKPwdHash},
+ {FNAME("cryptoEPPwdEncr") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoH323Token_cryptoEPPwdEncr},
+ {FNAME("cryptoGKPwdEncr") SEQ, 0, 3, 3, SKIP, 0,
+ _CryptoH323Token_cryptoGKPwdEncr},
+ {FNAME("cryptoEPCert") SEQ, 0, 4, 4, SKIP, 0,
+ _CryptoH323Token_cryptoEPCert},
+ {FNAME("cryptoGKCert") SEQ, 0, 4, 4, SKIP, 0,
+ _CryptoH323Token_cryptoGKCert},
+ {FNAME("cryptoFastStart") SEQ, 0, 4, 4, SKIP, 0,
+ _CryptoH323Token_cryptoFastStart},
+ {FNAME("nestedcryptoToken") CHOICE, 2, 4, 4, SKIP | EXT, 0,
+ _CryptoToken},
+};
+
+static field_t _Progress_UUIE_cryptoTokens[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 3, 8, 8, SKIP | EXT, 0, _CryptoH323Token},
+};
+
+static field_t _Progress_UUIE_fastStart[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 1, 3, 5, DECODE | OPEN | EXT,
+ sizeof(OpenLogicalChannel), _OpenLogicalChannel}
+ ,
+};
+
+static field_t _Progress_UUIE[] = { /* SEQUENCE */
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("destinationInfo") SEQ, 6, 8, 10, SKIP | EXT, 0,
+ _EndpointType},
+ {FNAME("h245Address") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(Progress_UUIE, h245Address), _TransportAddress},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, SKIP | EXT, 0,
+ _CallIdentifier},
+ {FNAME("h245SecurityMode") CHOICE, 2, 4, 4, SKIP | EXT | OPT, 0,
+ _H245Security},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _Progress_UUIE_tokens},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _Progress_UUIE_cryptoTokens},
+ {FNAME("fastStart") SEQOF, SEMI, 0, 30, DECODE | OPT,
+ offsetof(Progress_UUIE, fastStart), _Progress_UUIE_fastStart},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("fastConnectRefused") NUL, FIXD, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _H323_UU_PDU_h323_message_body[] = { /* CHOICE */
+ {FNAME("setup") SEQ, 7, 13, 39, DECODE | EXT,
+ offsetof(H323_UU_PDU_h323_message_body, setup), _Setup_UUIE},
+ {FNAME("callProceeding") SEQ, 1, 3, 12, DECODE | EXT,
+ offsetof(H323_UU_PDU_h323_message_body, callProceeding),
+ _CallProceeding_UUIE},
+ {FNAME("connect") SEQ, 1, 4, 19, DECODE | EXT,
+ offsetof(H323_UU_PDU_h323_message_body, connect), _Connect_UUIE},
+ {FNAME("alerting") SEQ, 1, 3, 17, DECODE | EXT,
+ offsetof(H323_UU_PDU_h323_message_body, alerting), _Alerting_UUIE},
+ {FNAME("information") SEQ, 0, 1, 7, DECODE | EXT,
+ offsetof(H323_UU_PDU_h323_message_body, information),
+ _Information_UUIE},
+ {FNAME("releaseComplete") SEQ, 1, 2, 11, SKIP | EXT, 0,
+ _ReleaseComplete_UUIE},
+ {FNAME("facility") SEQ, 3, 5, 21, DECODE | EXT,
+ offsetof(H323_UU_PDU_h323_message_body, facility), _Facility_UUIE},
+ {FNAME("progress") SEQ, 5, 8, 11, DECODE | EXT,
+ offsetof(H323_UU_PDU_h323_message_body, progress), _Progress_UUIE},
+ {FNAME("empty") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("status") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+ {FNAME("statusInquiry") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+ {FNAME("setupAcknowledge") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+ {FNAME("notify") SEQ, 2, 4, 4, SKIP | EXT, 0, NULL},
+};
+
+static field_t _RequestMessage[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("masterSlaveDetermination") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("terminalCapabilitySet") SEQ, 3, 5, 5, STOP | EXT, 0, NULL},
+ {FNAME("openLogicalChannel") SEQ, 1, 3, 5, DECODE | EXT,
+ offsetof(RequestMessage, openLogicalChannel), _OpenLogicalChannel},
+ {FNAME("closeLogicalChannel") SEQ, 0, 2, 3, STOP | EXT, 0, NULL},
+ {FNAME("requestChannelClose") SEQ, 0, 1, 3, STOP | EXT, 0, NULL},
+ {FNAME("multiplexEntrySend") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("requestMultiplexEntry") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("requestMode") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("roundTripDelayRequest") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("maintenanceLoopRequest") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("communicationModeRequest") SEQ, 0, 0, 0, STOP | EXT, 0, NULL},
+ {FNAME("conferenceRequest") CHOICE, 3, 8, 16, STOP | EXT, 0, NULL},
+ {FNAME("multilinkRequest") CHOICE, 3, 5, 5, STOP | EXT, 0, NULL},
+ {FNAME("logicalChannelRateRequest") SEQ, 0, 3, 3, STOP | EXT, 0,
+ NULL},
+};
+
+static field_t _OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters[] = { /* CHOICE */
+ {FNAME("h222LogicalChannelParameters") SEQ, 3, 5, 5, SKIP | EXT, 0,
+ _H222LogicalChannelParameters},
+ {FNAME("h2250LogicalChannelParameters") SEQ, 10, 11, 14, DECODE | EXT,
+ offsetof
+ (OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters,
+ h2250LogicalChannelParameters), _H2250LogicalChannelParameters},
+};
+
+static field_t _OpenLogicalChannelAck_reverseLogicalChannelParameters[] = { /* SEQUENCE */
+ {FNAME("reverseLogicalChannelNumber") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("portNumber") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("multiplexParameters") CHOICE, 0, 1, 2, DECODE | EXT | OPT,
+ offsetof(OpenLogicalChannelAck_reverseLogicalChannelParameters,
+ multiplexParameters),
+ _OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters},
+ {FNAME("replacementFor") INT, WORD, 1, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _H2250LogicalChannelAckParameters_nonStandard[] = { /* SEQUENCE OF */
+ {FNAME("item") SEQ, 0, 2, 2, SKIP, 0, _H245_NonStandardParameter},
+};
+
+static field_t _H2250LogicalChannelAckParameters[] = { /* SEQUENCE */
+ {FNAME("nonStandard") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _H2250LogicalChannelAckParameters_nonStandard},
+ {FNAME("sessionID") INT, 8, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("mediaChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+ offsetof(H2250LogicalChannelAckParameters, mediaChannel),
+ _H245_TransportAddress},
+ {FNAME("mediaControlChannel") CHOICE, 1, 2, 2, DECODE | EXT | OPT,
+ offsetof(H2250LogicalChannelAckParameters, mediaControlChannel),
+ _H245_TransportAddress},
+ {FNAME("dynamicRTPPayloadType") INT, 5, 96, 0, SKIP | OPT, 0, NULL},
+ {FNAME("flowControlToZero") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("portNumber") INT, WORD, 0, 0, SKIP | OPT, 0, NULL},
+};
+
+static field_t _OpenLogicalChannelAck_forwardMultiplexAckParameters[] = { /* CHOICE */
+ {FNAME("h2250LogicalChannelAckParameters") SEQ, 5, 5, 7, DECODE | EXT,
+ offsetof(OpenLogicalChannelAck_forwardMultiplexAckParameters,
+ h2250LogicalChannelAckParameters),
+ _H2250LogicalChannelAckParameters},
+};
+
+static field_t _OpenLogicalChannelAck[] = { /* SEQUENCE */
+ {FNAME("forwardLogicalChannelNumber") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("reverseLogicalChannelParameters") SEQ, 2, 3, 4,
+ DECODE | EXT | OPT, offsetof(OpenLogicalChannelAck,
+ reverseLogicalChannelParameters),
+ _OpenLogicalChannelAck_reverseLogicalChannelParameters},
+ {FNAME("separateStack") SEQ, 2, 4, 5, SKIP | EXT | OPT, 0, NULL},
+ {FNAME("forwardMultiplexAckParameters") CHOICE, 0, 1, 1,
+ DECODE | EXT | OPT, offsetof(OpenLogicalChannelAck,
+ forwardMultiplexAckParameters),
+ _OpenLogicalChannelAck_forwardMultiplexAckParameters},
+ {FNAME("encryptionSync") SEQ, 2, 4, 4, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _ResponseMessage[] = { /* CHOICE */
+ {FNAME("nonStandard") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("masterSlaveDeterminationAck") SEQ, 0, 1, 1, STOP | EXT, 0,
+ NULL},
+ {FNAME("masterSlaveDeterminationReject") SEQ, 0, 1, 1, STOP | EXT, 0,
+ NULL},
+ {FNAME("terminalCapabilitySetAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("terminalCapabilitySetReject") SEQ, 0, 2, 2, STOP | EXT, 0,
+ NULL},
+ {FNAME("openLogicalChannelAck") SEQ, 1, 2, 5, DECODE | EXT,
+ offsetof(ResponseMessage, openLogicalChannelAck),
+ _OpenLogicalChannelAck},
+ {FNAME("openLogicalChannelReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("closeLogicalChannelAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("requestChannelCloseAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("requestChannelCloseReject") SEQ, 0, 2, 2, STOP | EXT, 0,
+ NULL},
+ {FNAME("multiplexEntrySendAck") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("multiplexEntrySendReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("requestMultiplexEntryAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("requestMultiplexEntryReject") SEQ, 0, 2, 2, STOP | EXT, 0,
+ NULL},
+ {FNAME("requestModeAck") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("requestModeReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("roundTripDelayResponse") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("maintenanceLoopAck") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("maintenanceLoopReject") SEQ, 0, 2, 2, STOP | EXT, 0, NULL},
+ {FNAME("communicationModeResponse") CHOICE, 0, 1, 1, STOP | EXT, 0,
+ NULL},
+ {FNAME("conferenceResponse") CHOICE, 3, 8, 16, STOP | EXT, 0, NULL},
+ {FNAME("multilinkResponse") CHOICE, 3, 5, 5, STOP | EXT, 0, NULL},
+ {FNAME("logicalChannelRateAcknowledge") SEQ, 0, 3, 3, STOP | EXT, 0,
+ NULL},
+ {FNAME("logicalChannelRateReject") SEQ, 1, 4, 4, STOP | EXT, 0, NULL},
+};
+
+static field_t _MultimediaSystemControlMessage[] = { /* CHOICE */
+ {FNAME("request") CHOICE, 4, 11, 15, DECODE | EXT,
+ offsetof(MultimediaSystemControlMessage, request), _RequestMessage},
+ {FNAME("response") CHOICE, 5, 19, 24, DECODE | EXT,
+ offsetof(MultimediaSystemControlMessage, response),
+ _ResponseMessage},
+ {FNAME("command") CHOICE, 3, 7, 12, STOP | EXT, 0, NULL},
+ {FNAME("indication") CHOICE, 4, 14, 23, STOP | EXT, 0, NULL},
+};
+
+static field_t _H323_UU_PDU_h245Control[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 2, 4, 4, DECODE | OPEN | EXT,
+ sizeof(MultimediaSystemControlMessage),
+ _MultimediaSystemControlMessage}
+ ,
+};
+
+static field_t _H323_UU_PDU[] = { /* SEQUENCE */
+ {FNAME("h323-message-body") CHOICE, 3, 7, 13, DECODE | EXT,
+ offsetof(H323_UU_PDU, h323_message_body),
+ _H323_UU_PDU_h323_message_body},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("h4501SupplementaryService") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ NULL},
+ {FNAME("h245Tunneling") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("h245Control") SEQOF, SEMI, 0, 4, DECODE | OPT,
+ offsetof(H323_UU_PDU, h245Control), _H323_UU_PDU_h245Control},
+ {FNAME("nonStandardControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("callLinkage") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+ {FNAME("tunnelledSignallingMessage") SEQ, 2, 4, 4, STOP | EXT | OPT,
+ 0, NULL},
+ {FNAME("provisionalRespToH245Tunneling") NUL, FIXD, 0, 0, STOP | OPT,
+ 0, NULL},
+ {FNAME("stimulusControl") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _H323_UserInformation[] = { /* SEQUENCE */
+ {FNAME("h323-uu-pdu") SEQ, 1, 2, 11, DECODE | EXT,
+ offsetof(H323_UserInformation, h323_uu_pdu), _H323_UU_PDU},
+ {FNAME("user-data") SEQ, 0, 2, 2, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _GatekeeperRequest[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+ offsetof(GatekeeperRequest, rasAddress), _TransportAddress},
+ {FNAME("endpointType") SEQ, 6, 8, 10, STOP | EXT, 0, NULL},
+ {FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("callServices") SEQ, 0, 8, 8, STOP | EXT | OPT, 0, NULL},
+ {FNAME("endpointAlias") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("authenticationCapability") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("algorithmOIDs") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrity") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("supportsAltGK") NUL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _GatekeeperConfirm[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+ offsetof(GatekeeperConfirm, rasAddress), _TransportAddress},
+ {FNAME("alternateGatekeeper") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("authenticationMode") CHOICE, 3, 7, 8, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("algorithmOID") OID, BYTE, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrity") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _RegistrationRequest_callSignalAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+ sizeof(TransportAddress), _TransportAddress}
+ ,
+};
+
+static field_t _RegistrationRequest_rasAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+ sizeof(TransportAddress), _TransportAddress}
+ ,
+};
+
+static field_t _RegistrationRequest_terminalAlias[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _RegistrationRequest[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("discoveryComplete") BOOL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+ offsetof(RegistrationRequest, callSignalAddress),
+ _RegistrationRequest_callSignalAddress},
+ {FNAME("rasAddress") SEQOF, SEMI, 0, 10, DECODE,
+ offsetof(RegistrationRequest, rasAddress),
+ _RegistrationRequest_rasAddress},
+ {FNAME("terminalType") SEQ, 6, 8, 10, SKIP | EXT, 0, _EndpointType},
+ {FNAME("terminalAlias") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _RegistrationRequest_terminalAlias},
+ {FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("endpointVendor") SEQ, 2, 3, 3, SKIP | EXT, 0,
+ _VendorIdentifier},
+ {FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("timeToLive") INT, CONS, 1, 0, DECODE | OPT,
+ offsetof(RegistrationRequest, timeToLive), NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("keepAlive") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("willSupplyUUIEs") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("alternateTransportAddresses") SEQ, 1, 1, 1, STOP | EXT | OPT,
+ 0, NULL},
+ {FNAME("additiveRegistration") NUL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("terminalAliasPattern") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("supportsAltGK") NUL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("usageReportingCapability") SEQ, 3, 4, 4, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("supportedH248Packages") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("callCreditCapability") SEQ, 2, 2, 2, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("capacityReportingCapability") SEQ, 0, 1, 1, STOP | EXT | OPT,
+ 0, NULL},
+ {FNAME("capacity") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _RegistrationConfirm_callSignalAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+ sizeof(TransportAddress), _TransportAddress}
+ ,
+};
+
+static field_t _RegistrationConfirm_terminalAlias[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _RegistrationConfirm[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("protocolIdentifier") OID, BYTE, 0, 0, SKIP, 0, NULL},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+ offsetof(RegistrationConfirm, callSignalAddress),
+ _RegistrationConfirm_callSignalAddress},
+ {FNAME("terminalAlias") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _RegistrationConfirm_terminalAlias},
+ {FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+ {FNAME("alternateGatekeeper") SEQOF, SEMI, 0, 0, SKIP | OPT, 0, NULL},
+ {FNAME("timeToLive") INT, CONS, 1, 0, DECODE | OPT,
+ offsetof(RegistrationConfirm, timeToLive), NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("willRespondToIRR") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("preGrantedARQ") SEQ, 0, 4, 8, STOP | EXT | OPT, 0, NULL},
+ {FNAME("maintainConnection") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("supportsAdditiveRegistration") NUL, FIXD, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("terminalAliasPattern") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("usageSpec") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("featureServerAlias") CHOICE, 1, 2, 7, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("capacityReportingSpec") SEQ, 0, 1, 1, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _UnregistrationRequest_callSignalAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+ sizeof(TransportAddress), _TransportAddress}
+ ,
+};
+
+static field_t _UnregistrationRequest[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+ offsetof(UnregistrationRequest, callSignalAddress),
+ _UnregistrationRequest_callSignalAddress},
+ {FNAME("endpointAlias") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("reason") CHOICE, 2, 4, 5, STOP | EXT | OPT, 0, NULL},
+ {FNAME("endpointAliasPattern") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("supportedPrefixes") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("alternateGatekeeper") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _CallModel[] = { /* CHOICE */
+ {FNAME("direct") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+ {FNAME("gatekeeperRouted") NUL, FIXD, 0, 0, SKIP, 0, NULL},
+};
+
+static field_t _AdmissionRequest_destinationInfo[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _AdmissionRequest_destExtraCallInfo[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _AdmissionRequest_srcInfo[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _AdmissionRequest[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("callType") CHOICE, 2, 4, 4, SKIP | EXT, 0, _CallType},
+ {FNAME("callModel") CHOICE, 1, 2, 2, SKIP | EXT | OPT, 0, _CallModel},
+ {FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+ {FNAME("destinationInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _AdmissionRequest_destinationInfo},
+ {FNAME("destCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(AdmissionRequest, destCallSignalAddress),
+ _TransportAddress},
+ {FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, SKIP | OPT, 0,
+ _AdmissionRequest_destExtraCallInfo},
+ {FNAME("srcInfo") SEQOF, SEMI, 0, 0, SKIP, 0,
+ _AdmissionRequest_srcInfo},
+ {FNAME("srcCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT | OPT,
+ offsetof(AdmissionRequest, srcCallSignalAddress), _TransportAddress},
+ {FNAME("bandWidth") INT, CONS, 0, 0, STOP, 0, NULL},
+ {FNAME("callReferenceValue") INT, WORD, 0, 0, STOP, 0, NULL},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("callServices") SEQ, 0, 8, 8, STOP | EXT | OPT, 0, NULL},
+ {FNAME("conferenceID") OCTSTR, FIXD, 16, 0, STOP, 0, NULL},
+ {FNAME("activeMC") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("answerCall") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("canMapAlias") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("callIdentifier") SEQ, 0, 1, 1, STOP | EXT, 0, NULL},
+ {FNAME("srcAlternatives") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("destAlternatives") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("transportQOS") CHOICE, 2, 3, 3, STOP | EXT | OPT, 0, NULL},
+ {FNAME("willSupplyUUIEs") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("callLinkage") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+ {FNAME("gatewayDataRate") SEQ, 2, 3, 3, STOP | EXT | OPT, 0, NULL},
+ {FNAME("capacity") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+ {FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+ {FNAME("desiredProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("desiredTunnelledProtocol") SEQ, 1, 2, 2, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _AdmissionConfirm[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("bandWidth") INT, CONS, 0, 0, SKIP, 0, NULL},
+ {FNAME("callModel") CHOICE, 1, 2, 2, SKIP | EXT, 0, _CallModel},
+ {FNAME("destCallSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+ offsetof(AdmissionConfirm, destCallSignalAddress),
+ _TransportAddress},
+ {FNAME("irrFrequency") INT, WORD, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("destinationInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("destinationType") SEQ, 6, 8, 10, STOP | EXT | OPT, 0, NULL},
+ {FNAME("remoteExtensionAddress") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("transportQOS") CHOICE, 2, 3, 3, STOP | EXT | OPT, 0, NULL},
+ {FNAME("willRespondToIRR") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("uuiesRequested") SEQ, 0, 9, 13, STOP | EXT, 0, NULL},
+ {FNAME("language") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("alternateTransportAddresses") SEQ, 1, 1, 1, STOP | EXT | OPT,
+ 0, NULL},
+ {FNAME("useSpecifiedTransport") CHOICE, 1, 2, 2, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+ {FNAME("usageSpec") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("supportedProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _LocationRequest_destinationInfo[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 1, 2, 7, SKIP | EXT, 0, _AliasAddress},
+};
+
+static field_t _LocationRequest[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP | OPT, 0, NULL},
+ {FNAME("destinationInfo") SEQOF, SEMI, 0, 0, SKIP, 0,
+ _LocationRequest_destinationInfo},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("replyAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+ offsetof(LocationRequest, replyAddress), _TransportAddress},
+ {FNAME("sourceInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("canMapAlias") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("gatekeeperIdentifier") BMPSTR, 7, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("desiredProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("desiredTunnelledProtocol") SEQ, 1, 2, 2, STOP | EXT | OPT, 0,
+ NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("hopCount") INT, 8, 1, 0, STOP | OPT, 0, NULL},
+ {FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+};
+
+static field_t _LocationConfirm[] = { /* SEQUENCE */
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("callSignalAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+ offsetof(LocationConfirm, callSignalAddress), _TransportAddress},
+ {FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+ offsetof(LocationConfirm, rasAddress), _TransportAddress},
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("destinationInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("destExtraCallInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("destinationType") SEQ, 6, 8, 10, STOP | EXT | OPT, 0, NULL},
+ {FNAME("remoteExtensionAddress") SEQOF, SEMI, 0, 0, STOP | OPT, 0,
+ NULL},
+ {FNAME("alternateEndpoints") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("alternateTransportAddresses") SEQ, 1, 1, 1, STOP | EXT | OPT,
+ 0, NULL},
+ {FNAME("supportedProtocols") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("multipleCalls") BOOL, FIXD, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("featureSet") SEQ, 3, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("circuitInfo") SEQ, 3, 3, 3, STOP | EXT | OPT, 0, NULL},
+ {FNAME("serviceControl") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _InfoRequestResponse_callSignalAddress[] = { /* SEQUENCE OF */
+ {FNAME("item") CHOICE, 3, 7, 7, DECODE | EXT,
+ sizeof(TransportAddress), _TransportAddress}
+ ,
+};
+
+static field_t _InfoRequestResponse[] = { /* SEQUENCE */
+ {FNAME("nonStandardData") SEQ, 0, 2, 2, SKIP | OPT, 0,
+ _NonStandardParameter},
+ {FNAME("requestSeqNum") INT, WORD, 1, 0, SKIP, 0, NULL},
+ {FNAME("endpointType") SEQ, 6, 8, 10, SKIP | EXT, 0, _EndpointType},
+ {FNAME("endpointIdentifier") BMPSTR, 7, 1, 0, SKIP, 0, NULL},
+ {FNAME("rasAddress") CHOICE, 3, 7, 7, DECODE | EXT,
+ offsetof(InfoRequestResponse, rasAddress), _TransportAddress},
+ {FNAME("callSignalAddress") SEQOF, SEMI, 0, 10, DECODE,
+ offsetof(InfoRequestResponse, callSignalAddress),
+ _InfoRequestResponse_callSignalAddress},
+ {FNAME("endpointAlias") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("perCallInfo") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("tokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("cryptoTokens") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+ {FNAME("integrityCheckValue") SEQ, 0, 2, 2, STOP | OPT, 0, NULL},
+ {FNAME("needResponse") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("capacity") SEQ, 2, 2, 2, STOP | EXT | OPT, 0, NULL},
+ {FNAME("irrStatus") CHOICE, 2, 4, 4, STOP | EXT | OPT, 0, NULL},
+ {FNAME("unsolicited") BOOL, FIXD, 0, 0, STOP, 0, NULL},
+ {FNAME("genericData") SEQOF, SEMI, 0, 0, STOP | OPT, 0, NULL},
+};
+
+static field_t _RasMessage[] = { /* CHOICE */
+ {FNAME("gatekeeperRequest") SEQ, 4, 8, 18, DECODE | EXT,
+ offsetof(RasMessage, gatekeeperRequest), _GatekeeperRequest},
+ {FNAME("gatekeeperConfirm") SEQ, 2, 5, 14, DECODE | EXT,
+ offsetof(RasMessage, gatekeeperConfirm), _GatekeeperConfirm},
+ {FNAME("gatekeeperReject") SEQ, 2, 5, 11, STOP | EXT, 0, NULL},
+ {FNAME("registrationRequest") SEQ, 3, 10, 31, DECODE | EXT,
+ offsetof(RasMessage, registrationRequest), _RegistrationRequest},
+ {FNAME("registrationConfirm") SEQ, 3, 7, 24, DECODE | EXT,
+ offsetof(RasMessage, registrationConfirm), _RegistrationConfirm},
+ {FNAME("registrationReject") SEQ, 2, 5, 11, STOP | EXT, 0, NULL},
+ {FNAME("unregistrationRequest") SEQ, 3, 5, 15, DECODE | EXT,
+ offsetof(RasMessage, unregistrationRequest), _UnregistrationRequest},
+ {FNAME("unregistrationConfirm") SEQ, 1, 2, 6, STOP | EXT, 0, NULL},
+ {FNAME("unregistrationReject") SEQ, 1, 3, 8, STOP | EXT, 0, NULL},
+ {FNAME("admissionRequest") SEQ, 7, 16, 34, DECODE | EXT,
+ offsetof(RasMessage, admissionRequest), _AdmissionRequest},
+ {FNAME("admissionConfirm") SEQ, 2, 6, 27, DECODE | EXT,
+ offsetof(RasMessage, admissionConfirm), _AdmissionConfirm},
+ {FNAME("admissionReject") SEQ, 1, 3, 11, STOP | EXT, 0, NULL},
+ {FNAME("bandwidthRequest") SEQ, 2, 7, 18, STOP | EXT, 0, NULL},
+ {FNAME("bandwidthConfirm") SEQ, 1, 3, 8, STOP | EXT, 0, NULL},
+ {FNAME("bandwidthReject") SEQ, 1, 4, 9, STOP | EXT, 0, NULL},
+ {FNAME("disengageRequest") SEQ, 1, 6, 19, STOP | EXT, 0, NULL},
+ {FNAME("disengageConfirm") SEQ, 1, 2, 9, STOP | EXT, 0, NULL},
+ {FNAME("disengageReject") SEQ, 1, 3, 8, STOP | EXT, 0, NULL},
+ {FNAME("locationRequest") SEQ, 2, 5, 17, DECODE | EXT,
+ offsetof(RasMessage, locationRequest), _LocationRequest},
+ {FNAME("locationConfirm") SEQ, 1, 4, 19, DECODE | EXT,
+ offsetof(RasMessage, locationConfirm), _LocationConfirm},
+ {FNAME("locationReject") SEQ, 1, 3, 10, STOP | EXT, 0, NULL},
+ {FNAME("infoRequest") SEQ, 2, 4, 15, STOP | EXT, 0, NULL},
+ {FNAME("infoRequestResponse") SEQ, 3, 8, 16, DECODE | EXT,
+ offsetof(RasMessage, infoRequestResponse), _InfoRequestResponse},
+ {FNAME("nonStandardMessage") SEQ, 0, 2, 7, STOP | EXT, 0, NULL},
+ {FNAME("unknownMessageResponse") SEQ, 0, 1, 5, STOP | EXT, 0, NULL},
+ {FNAME("requestInProgress") SEQ, 4, 6, 6, STOP | EXT, 0, NULL},
+ {FNAME("resourcesAvailableIndicate") SEQ, 4, 9, 11, STOP | EXT, 0,
+ NULL},
+ {FNAME("resourcesAvailableConfirm") SEQ, 4, 6, 7, STOP | EXT, 0,
+ NULL},
+ {FNAME("infoRequestAck") SEQ, 4, 5, 5, STOP | EXT, 0, NULL},
+ {FNAME("infoRequestNak") SEQ, 5, 7, 7, STOP | EXT, 0, NULL},
+ {FNAME("serviceControlIndication") SEQ, 8, 10, 10, STOP | EXT, 0,
+ NULL},
+ {FNAME("serviceControlResponse") SEQ, 7, 8, 8, STOP | EXT, 0, NULL},
+};
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_h323_types.h b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.h
new file mode 100644
index 0000000..cc98f7a
--- /dev/null
+++ b/net/ipv4/netfilter/ip_conntrack_helper_h323_types.h
@@ -0,0 +1,938 @@
+/* Generated by Jing Min Zhao's ASN.1 parser, Mar 15 2006
+ *
+ * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
+ *
+ * This source code is licensed under General Public License version 2.
+ */
+
+typedef struct TransportAddress_ipAddress { /* SEQUENCE */
+ int options; /* No use */
+ unsigned ip;
+} TransportAddress_ipAddress;
+
+typedef struct TransportAddress { /* CHOICE */
+ enum {
+ eTransportAddress_ipAddress,
+ eTransportAddress_ipSourceRoute,
+ eTransportAddress_ipxAddress,
+ eTransportAddress_ip6Address,
+ eTransportAddress_netBios,
+ eTransportAddress_nsap,
+ eTransportAddress_nonStandardAddress,
+ } choice;
+ union {
+ TransportAddress_ipAddress ipAddress;
+ };
+} TransportAddress;
+
+typedef struct DataProtocolCapability { /* CHOICE */
+ enum {
+ eDataProtocolCapability_nonStandard,
+ eDataProtocolCapability_v14buffered,
+ eDataProtocolCapability_v42lapm,
+ eDataProtocolCapability_hdlcFrameTunnelling,
+ eDataProtocolCapability_h310SeparateVCStack,
+ eDataProtocolCapability_h310SingleVCStack,
+ eDataProtocolCapability_transparent,
+ eDataProtocolCapability_segmentationAndReassembly,
+ eDataProtocolCapability_hdlcFrameTunnelingwSAR,
+ eDataProtocolCapability_v120,
+ eDataProtocolCapability_separateLANStack,
+ eDataProtocolCapability_v76wCompression,
+ eDataProtocolCapability_tcp,
+ eDataProtocolCapability_udp,
+ } choice;
+} DataProtocolCapability;
+
+typedef struct DataApplicationCapability_application { /* CHOICE */
+ enum {
+ eDataApplicationCapability_application_nonStandard,
+ eDataApplicationCapability_application_t120,
+ eDataApplicationCapability_application_dsm_cc,
+ eDataApplicationCapability_application_userData,
+ eDataApplicationCapability_application_t84,
+ eDataApplicationCapability_application_t434,
+ eDataApplicationCapability_application_h224,
+ eDataApplicationCapability_application_nlpid,
+ eDataApplicationCapability_application_dsvdControl,
+ eDataApplicationCapability_application_h222DataPartitioning,
+ eDataApplicationCapability_application_t30fax,
+ eDataApplicationCapability_application_t140,
+ eDataApplicationCapability_application_t38fax,
+ eDataApplicationCapability_application_genericDataCapability,
+ } choice;
+ union {
+ DataProtocolCapability t120;
+ };
+} DataApplicationCapability_application;
+
+typedef struct DataApplicationCapability { /* SEQUENCE */
+ int options; /* No use */
+ DataApplicationCapability_application application;
+} DataApplicationCapability;
+
+typedef struct DataType { /* CHOICE */
+ enum {
+ eDataType_nonStandard,
+ eDataType_nullData,
+ eDataType_videoData,
+ eDataType_audioData,
+ eDataType_data,
+ eDataType_encryptionData,
+ eDataType_h235Control,
+ eDataType_h235Media,
+ eDataType_multiplexedStream,
+ } choice;
+ union {
+ DataApplicationCapability data;
+ };
+} DataType;
+
+typedef struct UnicastAddress_iPAddress { /* SEQUENCE */
+ int options; /* No use */
+ unsigned network;
+} UnicastAddress_iPAddress;
+
+typedef struct UnicastAddress { /* CHOICE */
+ enum {
+ eUnicastAddress_iPAddress,
+ eUnicastAddress_iPXAddress,
+ eUnicastAddress_iP6Address,
+ eUnicastAddress_netBios,
+ eUnicastAddress_iPSourceRouteAddress,
+ eUnicastAddress_nsap,
+ eUnicastAddress_nonStandardAddress,
+ } choice;
+ union {
+ UnicastAddress_iPAddress iPAddress;
+ };
+} UnicastAddress;
+
+typedef struct H245_TransportAddress { /* CHOICE */
+ enum {
+ eH245_TransportAddress_unicastAddress,
+ eH245_TransportAddress_multicastAddress,
+ } choice;
+ union {
+ UnicastAddress unicastAddress;
+ };
+} H245_TransportAddress;
+
+typedef struct H2250LogicalChannelParameters { /* SEQUENCE */
+ enum {
+ eH2250LogicalChannelParameters_nonStandard = (1 << 31),
+ eH2250LogicalChannelParameters_associatedSessionID =
+ (1 << 30),
+ eH2250LogicalChannelParameters_mediaChannel = (1 << 29),
+ eH2250LogicalChannelParameters_mediaGuaranteedDelivery =
+ (1 << 28),
+ eH2250LogicalChannelParameters_mediaControlChannel =
+ (1 << 27),
+ eH2250LogicalChannelParameters_mediaControlGuaranteedDelivery
+ = (1 << 26),
+ eH2250LogicalChannelParameters_silenceSuppression = (1 << 25),
+ eH2250LogicalChannelParameters_destination = (1 << 24),
+ eH2250LogicalChannelParameters_dynamicRTPPayloadType =
+ (1 << 23),
+ eH2250LogicalChannelParameters_mediaPacketization = (1 << 22),
+ eH2250LogicalChannelParameters_transportCapability =
+ (1 << 21),
+ eH2250LogicalChannelParameters_redundancyEncoding = (1 << 20),
+ eH2250LogicalChannelParameters_source = (1 << 19),
+ } options;
+ H245_TransportAddress mediaChannel;
+ H245_TransportAddress mediaControlChannel;
+} H2250LogicalChannelParameters;
+
+typedef struct OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters { /* CHOICE */
+ enum {
+ eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h222LogicalChannelParameters,
+ eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h223LogicalChannelParameters,
+ eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_v76LogicalChannelParameters,
+ eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters,
+ eOpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters_none,
+ } choice;
+ union {
+ H2250LogicalChannelParameters h2250LogicalChannelParameters;
+ };
+} OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters;
+
+typedef struct OpenLogicalChannel_forwardLogicalChannelParameters { /* SEQUENCE */
+ enum {
+ eOpenLogicalChannel_forwardLogicalChannelParameters_portNumber
+ = (1 << 31),
+ eOpenLogicalChannel_forwardLogicalChannelParameters_forwardLogicalChannelDependency
+ = (1 << 30),
+ eOpenLogicalChannel_forwardLogicalChannelParameters_replacementFor
+ = (1 << 29),
+ } options;
+ DataType dataType;
+ OpenLogicalChannel_forwardLogicalChannelParameters_multiplexParameters
+ multiplexParameters;
+} OpenLogicalChannel_forwardLogicalChannelParameters;
+
+typedef struct OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters { /* CHOICE */
+ enum {
+ eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h223LogicalChannelParameters,
+ eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_v76LogicalChannelParameters,
+ eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters,
+ } choice;
+ union {
+ H2250LogicalChannelParameters h2250LogicalChannelParameters;
+ };
+} OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters;
+
+typedef struct OpenLogicalChannel_reverseLogicalChannelParameters { /* SEQUENCE */
+ enum {
+ eOpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters
+ = (1 << 31),
+ eOpenLogicalChannel_reverseLogicalChannelParameters_reverseLogicalChannelDependency
+ = (1 << 30),
+ eOpenLogicalChannel_reverseLogicalChannelParameters_replacementFor
+ = (1 << 29),
+ } options;
+ OpenLogicalChannel_reverseLogicalChannelParameters_multiplexParameters
+ multiplexParameters;
+} OpenLogicalChannel_reverseLogicalChannelParameters;
+
+typedef struct NetworkAccessParameters_networkAddress { /* CHOICE */
+ enum {
+ eNetworkAccessParameters_networkAddress_q2931Address,
+ eNetworkAccessParameters_networkAddress_e164Address,
+ eNetworkAccessParameters_networkAddress_localAreaAddress,
+ } choice;
+ union {
+ H245_TransportAddress localAreaAddress;
+ };
+} NetworkAccessParameters_networkAddress;
+
+typedef struct NetworkAccessParameters { /* SEQUENCE */
+ enum {
+ eNetworkAccessParameters_distribution = (1 << 31),
+ eNetworkAccessParameters_externalReference = (1 << 30),
+ eNetworkAccessParameters_t120SetupProcedure = (1 << 29),
+ } options;
+ NetworkAccessParameters_networkAddress networkAddress;
+} NetworkAccessParameters;
+
+typedef struct OpenLogicalChannel { /* SEQUENCE */
+ enum {
+ eOpenLogicalChannel_reverseLogicalChannelParameters =
+ (1 << 31),
+ eOpenLogicalChannel_separateStack = (1 << 30),
+ eOpenLogicalChannel_encryptionSync = (1 << 29),
+ } options;
+ OpenLogicalChannel_forwardLogicalChannelParameters
+ forwardLogicalChannelParameters;
+ OpenLogicalChannel_reverseLogicalChannelParameters
+ reverseLogicalChannelParameters;
+ NetworkAccessParameters separateStack;
+} OpenLogicalChannel;
+
+typedef struct Setup_UUIE_fastStart { /* SEQUENCE OF */
+ int count;
+ OpenLogicalChannel item[30];
+} Setup_UUIE_fastStart;
+
+typedef struct Setup_UUIE { /* SEQUENCE */
+ enum {
+ eSetup_UUIE_h245Address = (1 << 31),
+ eSetup_UUIE_sourceAddress = (1 << 30),
+ eSetup_UUIE_destinationAddress = (1 << 29),
+ eSetup_UUIE_destCallSignalAddress = (1 << 28),
+ eSetup_UUIE_destExtraCallInfo = (1 << 27),
+ eSetup_UUIE_destExtraCRV = (1 << 26),
+ eSetup_UUIE_callServices = (1 << 25),
+ eSetup_UUIE_sourceCallSignalAddress = (1 << 24),
+ eSetup_UUIE_remoteExtensionAddress = (1 << 23),
+ eSetup_UUIE_callIdentifier = (1 << 22),
+ eSetup_UUIE_h245SecurityCapability = (1 << 21),
+ eSetup_UUIE_tokens = (1 << 20),
+ eSetup_UUIE_cryptoTokens = (1 << 19),
+ eSetup_UUIE_fastStart = (1 << 18),
+ eSetup_UUIE_mediaWaitForConnect = (1 << 17),
+ eSetup_UUIE_canOverlapSend = (1 << 16),
+ eSetup_UUIE_endpointIdentifier = (1 << 15),
+ eSetup_UUIE_multipleCalls = (1 << 14),
+ eSetup_UUIE_maintainConnection = (1 << 13),
+ eSetup_UUIE_connectionParameters = (1 << 12),
+ eSetup_UUIE_language = (1 << 11),
+ eSetup_UUIE_presentationIndicator = (1 << 10),
+ eSetup_UUIE_screeningIndicator = (1 << 9),
+ eSetup_UUIE_serviceControl = (1 << 8),
+ eSetup_UUIE_symmetricOperationRequired = (1 << 7),
+ eSetup_UUIE_capacity = (1 << 6),
+ eSetup_UUIE_circuitInfo = (1 << 5),
+ eSetup_UUIE_desiredProtocols = (1 << 4),
+ eSetup_UUIE_neededFeatures = (1 << 3),
+ eSetup_UUIE_desiredFeatures = (1 << 2),
+ eSetup_UUIE_supportedFeatures = (1 << 1),
+ eSetup_UUIE_parallelH245Control = (1 << 0),
+ } options;
+ TransportAddress h245Address;
+ TransportAddress destCallSignalAddress;
+ TransportAddress sourceCallSignalAddress;
+ Setup_UUIE_fastStart fastStart;
+} Setup_UUIE;
+
+typedef struct CallProceeding_UUIE_fastStart { /* SEQUENCE OF */
+ int count;
+ OpenLogicalChannel item[30];
+} CallProceeding_UUIE_fastStart;
+
+typedef struct CallProceeding_UUIE { /* SEQUENCE */
+ enum {
+ eCallProceeding_UUIE_h245Address = (1 << 31),
+ eCallProceeding_UUIE_callIdentifier = (1 << 30),
+ eCallProceeding_UUIE_h245SecurityMode = (1 << 29),
+ eCallProceeding_UUIE_tokens = (1 << 28),
+ eCallProceeding_UUIE_cryptoTokens = (1 << 27),
+ eCallProceeding_UUIE_fastStart = (1 << 26),
+ eCallProceeding_UUIE_multipleCalls = (1 << 25),
+ eCallProceeding_UUIE_maintainConnection = (1 << 24),
+ eCallProceeding_UUIE_fastConnectRefused = (1 << 23),
+ eCallProceeding_UUIE_featureSet = (1 << 22),
+ } options;
+ TransportAddress h245Address;
+ CallProceeding_UUIE_fastStart fastStart;
+} CallProceeding_UUIE;
+
+typedef struct Connect_UUIE_fastStart { /* SEQUENCE OF */
+ int count;
+ OpenLogicalChannel item[30];
+} Connect_UUIE_fastStart;
+
+typedef struct Connect_UUIE { /* SEQUENCE */
+ enum {
+ eConnect_UUIE_h245Address = (1 << 31),
+ eConnect_UUIE_callIdentifier = (1 << 30),
+ eConnect_UUIE_h245SecurityMode = (1 << 29),
+ eConnect_UUIE_tokens = (1 << 28),
+ eConnect_UUIE_cryptoTokens = (1 << 27),
+ eConnect_UUIE_fastStart = (1 << 26),
+ eConnect_UUIE_multipleCalls = (1 << 25),
+ eConnect_UUIE_maintainConnection = (1 << 24),
+ eConnect_UUIE_language = (1 << 23),
+ eConnect_UUIE_connectedAddress = (1 << 22),
+ eConnect_UUIE_presentationIndicator = (1 << 21),
+ eConnect_UUIE_screeningIndicator = (1 << 20),
+ eConnect_UUIE_fastConnectRefused = (1 << 19),
+ eConnect_UUIE_serviceControl = (1 << 18),
+ eConnect_UUIE_capacity = (1 << 17),
+ eConnect_UUIE_featureSet = (1 << 16),
+ } options;
+ TransportAddress h245Address;
+ Connect_UUIE_fastStart fastStart;
+} Connect_UUIE;
+
+typedef struct Alerting_UUIE_fastStart { /* SEQUENCE OF */
+ int count;
+ OpenLogicalChannel item[30];
+} Alerting_UUIE_fastStart;
+
+typedef struct Alerting_UUIE { /* SEQUENCE */
+ enum {
+ eAlerting_UUIE_h245Address = (1 << 31),
+ eAlerting_UUIE_callIdentifier = (1 << 30),
+ eAlerting_UUIE_h245SecurityMode = (1 << 29),
+ eAlerting_UUIE_tokens = (1 << 28),
+ eAlerting_UUIE_cryptoTokens = (1 << 27),
+ eAlerting_UUIE_fastStart = (1 << 26),
+ eAlerting_UUIE_multipleCalls = (1 << 25),
+ eAlerting_UUIE_maintainConnection = (1 << 24),
+ eAlerting_UUIE_alertingAddress = (1 << 23),
+ eAlerting_UUIE_presentationIndicator = (1 << 22),
+ eAlerting_UUIE_screeningIndicator = (1 << 21),
+ eAlerting_UUIE_fastConnectRefused = (1 << 20),
+ eAlerting_UUIE_serviceControl = (1 << 19),
+ eAlerting_UUIE_capacity = (1 << 18),
+ eAlerting_UUIE_featureSet = (1 << 17),
+ } options;
+ TransportAddress h245Address;
+ Alerting_UUIE_fastStart fastStart;
+} Alerting_UUIE;
+
+typedef struct Information_UUIE_fastStart { /* SEQUENCE OF */
+ int count;
+ OpenLogicalChannel item[30];
+} Information_UUIE_fastStart;
+
+typedef struct Information_UUIE { /* SEQUENCE */
+ enum {
+ eInformation_UUIE_callIdentifier = (1 << 31),
+ eInformation_UUIE_tokens = (1 << 30),
+ eInformation_UUIE_cryptoTokens = (1 << 29),
+ eInformation_UUIE_fastStart = (1 << 28),
+ eInformation_UUIE_fastConnectRefused = (1 << 27),
+ eInformation_UUIE_circuitInfo = (1 << 26),
+ } options;
+ Information_UUIE_fastStart fastStart;
+} Information_UUIE;
+
+typedef struct FacilityReason { /* CHOICE */
+ enum {
+ eFacilityReason_routeCallToGatekeeper,
+ eFacilityReason_callForwarded,
+ eFacilityReason_routeCallToMC,
+ eFacilityReason_undefinedReason,
+ eFacilityReason_conferenceListChoice,
+ eFacilityReason_startH245,
+ eFacilityReason_noH245,
+ eFacilityReason_newTokens,
+ eFacilityReason_featureSetUpdate,
+ eFacilityReason_forwardedElements,
+ eFacilityReason_transportedInformation,
+ } choice;
+} FacilityReason;
+
+typedef struct Facility_UUIE_fastStart { /* SEQUENCE OF */
+ int count;
+ OpenLogicalChannel item[30];
+} Facility_UUIE_fastStart;
+
+typedef struct Facility_UUIE { /* SEQUENCE */
+ enum {
+ eFacility_UUIE_alternativeAddress = (1 << 31),
+ eFacility_UUIE_alternativeAliasAddress = (1 << 30),
+ eFacility_UUIE_conferenceID = (1 << 29),
+ eFacility_UUIE_callIdentifier = (1 << 28),
+ eFacility_UUIE_destExtraCallInfo = (1 << 27),
+ eFacility_UUIE_remoteExtensionAddress = (1 << 26),
+ eFacility_UUIE_tokens = (1 << 25),
+ eFacility_UUIE_cryptoTokens = (1 << 24),
+ eFacility_UUIE_conferences = (1 << 23),
+ eFacility_UUIE_h245Address = (1 << 22),
+ eFacility_UUIE_fastStart = (1 << 21),
+ eFacility_UUIE_multipleCalls = (1 << 20),
+ eFacility_UUIE_maintainConnection = (1 << 19),
+ eFacility_UUIE_fastConnectRefused = (1 << 18),
+ eFacility_UUIE_serviceControl = (1 << 17),
+ eFacility_UUIE_circuitInfo = (1 << 16),
+ eFacility_UUIE_featureSet = (1 << 15),
+ eFacility_UUIE_destinationInfo = (1 << 14),
+ eFacility_UUIE_h245SecurityMode = (1 << 13),
+ } options;
+ FacilityReason reason;
+ TransportAddress h245Address;
+ Facility_UUIE_fastStart fastStart;
+} Facility_UUIE;
+
+typedef struct Progress_UUIE_fastStart { /* SEQUENCE OF */
+ int count;
+ OpenLogicalChannel item[30];
+} Progress_UUIE_fastStart;
+
+typedef struct Progress_UUIE { /* SEQUENCE */
+ enum {
+ eProgress_UUIE_h245Address = (1 << 31),
+ eProgress_UUIE_h245SecurityMode = (1 << 30),
+ eProgress_UUIE_tokens = (1 << 29),
+ eProgress_UUIE_cryptoTokens = (1 << 28),
+ eProgress_UUIE_fastStart = (1 << 27),
+ eProgress_UUIE_multipleCalls = (1 << 26),
+ eProgress_UUIE_maintainConnection = (1 << 25),
+ eProgress_UUIE_fastConnectRefused = (1 << 24),
+ } options;
+ TransportAddress h245Address;
+ Progress_UUIE_fastStart fastStart;
+} Progress_UUIE;
+
+typedef struct H323_UU_PDU_h323_message_body { /* CHOICE */
+ enum {
+ eH323_UU_PDU_h323_message_body_setup,
+ eH323_UU_PDU_h323_message_body_callProceeding,
+ eH323_UU_PDU_h323_message_body_connect,
+ eH323_UU_PDU_h323_message_body_alerting,
+ eH323_UU_PDU_h323_message_body_information,
+ eH323_UU_PDU_h323_message_body_releaseComplete,
+ eH323_UU_PDU_h323_message_body_facility,
+ eH323_UU_PDU_h323_message_body_progress,
+ eH323_UU_PDU_h323_message_body_empty,
+ eH323_UU_PDU_h323_message_body_status,
+ eH323_UU_PDU_h323_message_body_statusInquiry,
+ eH323_UU_PDU_h323_message_body_setupAcknowledge,
+ eH323_UU_PDU_h323_message_body_notify,
+ } choice;
+ union {
+ Setup_UUIE setup;
+ CallProceeding_UUIE callProceeding;
+ Connect_UUIE connect;
+ Alerting_UUIE alerting;
+ Information_UUIE information;
+ Facility_UUIE facility;
+ Progress_UUIE progress;
+ };
+} H323_UU_PDU_h323_message_body;
+
+typedef struct RequestMessage { /* CHOICE */
+ enum {
+ eRequestMessage_nonStandard,
+ eRequestMessage_masterSlaveDetermination,
+ eRequestMessage_terminalCapabilitySet,
+ eRequestMessage_openLogicalChannel,
+ eRequestMessage_closeLogicalChannel,
+ eRequestMessage_requestChannelClose,
+ eRequestMessage_multiplexEntrySend,
+ eRequestMessage_requestMultiplexEntry,
+ eRequestMessage_requestMode,
+ eRequestMessage_roundTripDelayRequest,
+ eRequestMessage_maintenanceLoopRequest,
+ eRequestMessage_communicationModeRequest,
+ eRequestMessage_conferenceRequest,
+ eRequestMessage_multilinkRequest,
+ eRequestMessage_logicalChannelRateRequest,
+ } choice;
+ union {
+ OpenLogicalChannel openLogicalChannel;
+ };
+} RequestMessage;
+
+typedef struct OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters { /* CHOICE */
+ enum {
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters_h222LogicalChannelParameters,
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters_h2250LogicalChannelParameters,
+ } choice;
+ union {
+ H2250LogicalChannelParameters h2250LogicalChannelParameters;
+ };
+} OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters;
+
+typedef struct OpenLogicalChannelAck_reverseLogicalChannelParameters { /* SEQUENCE */
+ enum {
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters_portNumber
+ = (1 << 31),
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters
+ = (1 << 30),
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters_replacementFor
+ = (1 << 29),
+ } options;
+ OpenLogicalChannelAck_reverseLogicalChannelParameters_multiplexParameters
+ multiplexParameters;
+} OpenLogicalChannelAck_reverseLogicalChannelParameters;
+
+typedef struct H2250LogicalChannelAckParameters { /* SEQUENCE */
+ enum {
+ eH2250LogicalChannelAckParameters_nonStandard = (1 << 31),
+ eH2250LogicalChannelAckParameters_sessionID = (1 << 30),
+ eH2250LogicalChannelAckParameters_mediaChannel = (1 << 29),
+ eH2250LogicalChannelAckParameters_mediaControlChannel =
+ (1 << 28),
+ eH2250LogicalChannelAckParameters_dynamicRTPPayloadType =
+ (1 << 27),
+ eH2250LogicalChannelAckParameters_flowControlToZero =
+ (1 << 26),
+ eH2250LogicalChannelAckParameters_portNumber = (1 << 25),
+ } options;
+ H245_TransportAddress mediaChannel;
+ H245_TransportAddress mediaControlChannel;
+} H2250LogicalChannelAckParameters;
+
+typedef struct OpenLogicalChannelAck_forwardMultiplexAckParameters { /* CHOICE */
+ enum {
+ eOpenLogicalChannelAck_forwardMultiplexAckParameters_h2250LogicalChannelAckParameters,
+ } choice;
+ union {
+ H2250LogicalChannelAckParameters
+ h2250LogicalChannelAckParameters;
+ };
+} OpenLogicalChannelAck_forwardMultiplexAckParameters;
+
+typedef struct OpenLogicalChannelAck { /* SEQUENCE */
+ enum {
+ eOpenLogicalChannelAck_reverseLogicalChannelParameters =
+ (1 << 31),
+ eOpenLogicalChannelAck_separateStack = (1 << 30),
+ eOpenLogicalChannelAck_forwardMultiplexAckParameters =
+ (1 << 29),
+ eOpenLogicalChannelAck_encryptionSync = (1 << 28),
+ } options;
+ OpenLogicalChannelAck_reverseLogicalChannelParameters
+ reverseLogicalChannelParameters;
+ OpenLogicalChannelAck_forwardMultiplexAckParameters
+ forwardMultiplexAckParameters;
+} OpenLogicalChannelAck;
+
+typedef struct ResponseMessage { /* CHOICE */
+ enum {
+ eResponseMessage_nonStandard,
+ eResponseMessage_masterSlaveDeterminationAck,
+ eResponseMessage_masterSlaveDeterminationReject,
+ eResponseMessage_terminalCapabilitySetAck,
+ eResponseMessage_terminalCapabilitySetReject,
+ eResponseMessage_openLogicalChannelAck,
+ eResponseMessage_openLogicalChannelReject,
+ eResponseMessage_closeLogicalChannelAck,
+ eResponseMessage_requestChannelCloseAck,
+ eResponseMessage_requestChannelCloseReject,
+ eResponseMessage_multiplexEntrySendAck,
+ eResponseMessage_multiplexEntrySendReject,
+ eResponseMessage_requestMultiplexEntryAck,
+ eResponseMessage_requestMultiplexEntryReject,
+ eResponseMessage_requestModeAck,
+ eResponseMessage_requestModeReject,
+ eResponseMessage_roundTripDelayResponse,
+ eResponseMessage_maintenanceLoopAck,
+ eResponseMessage_maintenanceLoopReject,
+ eResponseMessage_communicationModeResponse,
+ eResponseMessage_conferenceResponse,
+ eResponseMessage_multilinkResponse,
+ eResponseMessage_logicalChannelRateAcknowledge,
+ eResponseMessage_logicalChannelRateReject,
+ } choice;
+ union {
+ OpenLogicalChannelAck openLogicalChannelAck;
+ };
+} ResponseMessage;
+
+typedef struct MultimediaSystemControlMessage { /* CHOICE */
+ enum {
+ eMultimediaSystemControlMessage_request,
+ eMultimediaSystemControlMessage_response,
+ eMultimediaSystemControlMessage_command,
+ eMultimediaSystemControlMessage_indication,
+ } choice;
+ union {
+ RequestMessage request;
+ ResponseMessage response;
+ };
+} MultimediaSystemControlMessage;
+
+typedef struct H323_UU_PDU_h245Control { /* SEQUENCE OF */
+ int count;
+ MultimediaSystemControlMessage item[4];
+} H323_UU_PDU_h245Control;
+
+typedef struct H323_UU_PDU { /* SEQUENCE */
+ enum {
+ eH323_UU_PDU_nonStandardData = (1 << 31),
+ eH323_UU_PDU_h4501SupplementaryService = (1 << 30),
+ eH323_UU_PDU_h245Tunneling = (1 << 29),
+ eH323_UU_PDU_h245Control = (1 << 28),
+ eH323_UU_PDU_nonStandardControl = (1 << 27),
+ eH323_UU_PDU_callLinkage = (1 << 26),
+ eH323_UU_PDU_tunnelledSignallingMessage = (1 << 25),
+ eH323_UU_PDU_provisionalRespToH245Tunneling = (1 << 24),
+ eH323_UU_PDU_stimulusControl = (1 << 23),
+ eH323_UU_PDU_genericData = (1 << 22),
+ } options;
+ H323_UU_PDU_h323_message_body h323_message_body;
+ H323_UU_PDU_h245Control h245Control;
+} H323_UU_PDU;
+
+typedef struct H323_UserInformation { /* SEQUENCE */
+ enum {
+ eH323_UserInformation_user_data = (1 << 31),
+ } options;
+ H323_UU_PDU h323_uu_pdu;
+} H323_UserInformation;
+
+typedef struct GatekeeperRequest { /* SEQUENCE */
+ enum {
+ eGatekeeperRequest_nonStandardData = (1 << 31),
+ eGatekeeperRequest_gatekeeperIdentifier = (1 << 30),
+ eGatekeeperRequest_callServices = (1 << 29),
+ eGatekeeperRequest_endpointAlias = (1 << 28),
+ eGatekeeperRequest_alternateEndpoints = (1 << 27),
+ eGatekeeperRequest_tokens = (1 << 26),
+ eGatekeeperRequest_cryptoTokens = (1 << 25),
+ eGatekeeperRequest_authenticationCapability = (1 << 24),
+ eGatekeeperRequest_algorithmOIDs = (1 << 23),
+ eGatekeeperRequest_integrity = (1 << 22),
+ eGatekeeperRequest_integrityCheckValue = (1 << 21),
+ eGatekeeperRequest_supportsAltGK = (1 << 20),
+ eGatekeeperRequest_featureSet = (1 << 19),
+ eGatekeeperRequest_genericData = (1 << 18),
+ } options;
+ TransportAddress rasAddress;
+} GatekeeperRequest;
+
+typedef struct GatekeeperConfirm { /* SEQUENCE */
+ enum {
+ eGatekeeperConfirm_nonStandardData = (1 << 31),
+ eGatekeeperConfirm_gatekeeperIdentifier = (1 << 30),
+ eGatekeeperConfirm_alternateGatekeeper = (1 << 29),
+ eGatekeeperConfirm_authenticationMode = (1 << 28),
+ eGatekeeperConfirm_tokens = (1 << 27),
+ eGatekeeperConfirm_cryptoTokens = (1 << 26),
+ eGatekeeperConfirm_algorithmOID = (1 << 25),
+ eGatekeeperConfirm_integrity = (1 << 24),
+ eGatekeeperConfirm_integrityCheckValue = (1 << 23),
+ eGatekeeperConfirm_featureSet = (1 << 22),
+ eGatekeeperConfirm_genericData = (1 << 21),
+ } options;
+ TransportAddress rasAddress;
+} GatekeeperConfirm;
+
+typedef struct RegistrationRequest_callSignalAddress { /* SEQUENCE OF */
+ int count;
+ TransportAddress item[10];
+} RegistrationRequest_callSignalAddress;
+
+typedef struct RegistrationRequest_rasAddress { /* SEQUENCE OF */
+ int count;
+ TransportAddress item[10];
+} RegistrationRequest_rasAddress;
+
+typedef struct RegistrationRequest { /* SEQUENCE */
+ enum {
+ eRegistrationRequest_nonStandardData = (1 << 31),
+ eRegistrationRequest_terminalAlias = (1 << 30),
+ eRegistrationRequest_gatekeeperIdentifier = (1 << 29),
+ eRegistrationRequest_alternateEndpoints = (1 << 28),
+ eRegistrationRequest_timeToLive = (1 << 27),
+ eRegistrationRequest_tokens = (1 << 26),
+ eRegistrationRequest_cryptoTokens = (1 << 25),
+ eRegistrationRequest_integrityCheckValue = (1 << 24),
+ eRegistrationRequest_keepAlive = (1 << 23),
+ eRegistrationRequest_endpointIdentifier = (1 << 22),
+ eRegistrationRequest_willSupplyUUIEs = (1 << 21),
+ eRegistrationRequest_maintainConnection = (1 << 20),
+ eRegistrationRequest_alternateTransportAddresses = (1 << 19),
+ eRegistrationRequest_additiveRegistration = (1 << 18),
+ eRegistrationRequest_terminalAliasPattern = (1 << 17),
+ eRegistrationRequest_supportsAltGK = (1 << 16),
+ eRegistrationRequest_usageReportingCapability = (1 << 15),
+ eRegistrationRequest_multipleCalls = (1 << 14),
+ eRegistrationRequest_supportedH248Packages = (1 << 13),
+ eRegistrationRequest_callCreditCapability = (1 << 12),
+ eRegistrationRequest_capacityReportingCapability = (1 << 11),
+ eRegistrationRequest_capacity = (1 << 10),
+ eRegistrationRequest_featureSet = (1 << 9),
+ eRegistrationRequest_genericData = (1 << 8),
+ } options;
+ RegistrationRequest_callSignalAddress callSignalAddress;
+ RegistrationRequest_rasAddress rasAddress;
+ unsigned timeToLive;
+} RegistrationRequest;
+
+typedef struct RegistrationConfirm_callSignalAddress { /* SEQUENCE OF */
+ int count;
+ TransportAddress item[10];
+} RegistrationConfirm_callSignalAddress;
+
+typedef struct RegistrationConfirm { /* SEQUENCE */
+ enum {
+ eRegistrationConfirm_nonStandardData = (1 << 31),
+ eRegistrationConfirm_terminalAlias = (1 << 30),
+ eRegistrationConfirm_gatekeeperIdentifier = (1 << 29),
+ eRegistrationConfirm_alternateGatekeeper = (1 << 28),
+ eRegistrationConfirm_timeToLive = (1 << 27),
+ eRegistrationConfirm_tokens = (1 << 26),
+ eRegistrationConfirm_cryptoTokens = (1 << 25),
+ eRegistrationConfirm_integrityCheckValue = (1 << 24),
+ eRegistrationConfirm_willRespondToIRR = (1 << 23),
+ eRegistrationConfirm_preGrantedARQ = (1 << 22),
+ eRegistrationConfirm_maintainConnection = (1 << 21),
+ eRegistrationConfirm_serviceControl = (1 << 20),
+ eRegistrationConfirm_supportsAdditiveRegistration = (1 << 19),
+ eRegistrationConfirm_terminalAliasPattern = (1 << 18),
+ eRegistrationConfirm_supportedPrefixes = (1 << 17),
+ eRegistrationConfirm_usageSpec = (1 << 16),
+ eRegistrationConfirm_featureServerAlias = (1 << 15),
+ eRegistrationConfirm_capacityReportingSpec = (1 << 14),
+ eRegistrationConfirm_featureSet = (1 << 13),
+ eRegistrationConfirm_genericData = (1 << 12),
+ } options;
+ RegistrationConfirm_callSignalAddress callSignalAddress;
+ unsigned timeToLive;
+} RegistrationConfirm;
+
+typedef struct UnregistrationRequest_callSignalAddress { /* SEQUENCE OF */
+ int count;
+ TransportAddress item[10];
+} UnregistrationRequest_callSignalAddress;
+
+typedef struct UnregistrationRequest { /* SEQUENCE */
+ enum {
+ eUnregistrationRequest_endpointAlias = (1 << 31),
+ eUnregistrationRequest_nonStandardData = (1 << 30),
+ eUnregistrationRequest_endpointIdentifier = (1 << 29),
+ eUnregistrationRequest_alternateEndpoints = (1 << 28),
+ eUnregistrationRequest_gatekeeperIdentifier = (1 << 27),
+ eUnregistrationRequest_tokens = (1 << 26),
+ eUnregistrationRequest_cryptoTokens = (1 << 25),
+ eUnregistrationRequest_integrityCheckValue = (1 << 24),
+ eUnregistrationRequest_reason = (1 << 23),
+ eUnregistrationRequest_endpointAliasPattern = (1 << 22),
+ eUnregistrationRequest_supportedPrefixes = (1 << 21),
+ eUnregistrationRequest_alternateGatekeeper = (1 << 20),
+ eUnregistrationRequest_genericData = (1 << 19),
+ } options;
+ UnregistrationRequest_callSignalAddress callSignalAddress;
+} UnregistrationRequest;
+
+typedef struct AdmissionRequest { /* SEQUENCE */
+ enum {
+ eAdmissionRequest_callModel = (1 << 31),
+ eAdmissionRequest_destinationInfo = (1 << 30),
+ eAdmissionRequest_destCallSignalAddress = (1 << 29),
+ eAdmissionRequest_destExtraCallInfo = (1 << 28),
+ eAdmissionRequest_srcCallSignalAddress = (1 << 27),
+ eAdmissionRequest_nonStandardData = (1 << 26),
+ eAdmissionRequest_callServices = (1 << 25),
+ eAdmissionRequest_canMapAlias = (1 << 24),
+ eAdmissionRequest_callIdentifier = (1 << 23),
+ eAdmissionRequest_srcAlternatives = (1 << 22),
+ eAdmissionRequest_destAlternatives = (1 << 21),
+ eAdmissionRequest_gatekeeperIdentifier = (1 << 20),
+ eAdmissionRequest_tokens = (1 << 19),
+ eAdmissionRequest_cryptoTokens = (1 << 18),
+ eAdmissionRequest_integrityCheckValue = (1 << 17),
+ eAdmissionRequest_transportQOS = (1 << 16),
+ eAdmissionRequest_willSupplyUUIEs = (1 << 15),
+ eAdmissionRequest_callLinkage = (1 << 14),
+ eAdmissionRequest_gatewayDataRate = (1 << 13),
+ eAdmissionRequest_capacity = (1 << 12),
+ eAdmissionRequest_circuitInfo = (1 << 11),
+ eAdmissionRequest_desiredProtocols = (1 << 10),
+ eAdmissionRequest_desiredTunnelledProtocol = (1 << 9),
+ eAdmissionRequest_featureSet = (1 << 8),
+ eAdmissionRequest_genericData = (1 << 7),
+ } options;
+ TransportAddress destCallSignalAddress;
+ TransportAddress srcCallSignalAddress;
+} AdmissionRequest;
+
+typedef struct AdmissionConfirm { /* SEQUENCE */
+ enum {
+ eAdmissionConfirm_irrFrequency = (1 << 31),
+ eAdmissionConfirm_nonStandardData = (1 << 30),
+ eAdmissionConfirm_destinationInfo = (1 << 29),
+ eAdmissionConfirm_destExtraCallInfo = (1 << 28),
+ eAdmissionConfirm_destinationType = (1 << 27),
+ eAdmissionConfirm_remoteExtensionAddress = (1 << 26),
+ eAdmissionConfirm_alternateEndpoints = (1 << 25),
+ eAdmissionConfirm_tokens = (1 << 24),
+ eAdmissionConfirm_cryptoTokens = (1 << 23),
+ eAdmissionConfirm_integrityCheckValue = (1 << 22),
+ eAdmissionConfirm_transportQOS = (1 << 21),
+ eAdmissionConfirm_willRespondToIRR = (1 << 20),
+ eAdmissionConfirm_uuiesRequested = (1 << 19),
+ eAdmissionConfirm_language = (1 << 18),
+ eAdmissionConfirm_alternateTransportAddresses = (1 << 17),
+ eAdmissionConfirm_useSpecifiedTransport = (1 << 16),
+ eAdmissionConfirm_circuitInfo = (1 << 15),
+ eAdmissionConfirm_usageSpec = (1 << 14),
+ eAdmissionConfirm_supportedProtocols = (1 << 13),
+ eAdmissionConfirm_serviceControl = (1 << 12),
+ eAdmissionConfirm_multipleCalls = (1 << 11),
+ eAdmissionConfirm_featureSet = (1 << 10),
+ eAdmissionConfirm_genericData = (1 << 9),
+ } options;
+ TransportAddress destCallSignalAddress;
+} AdmissionConfirm;
+
+typedef struct LocationRequest { /* SEQUENCE */
+ enum {
+ eLocationRequest_endpointIdentifier = (1 << 31),
+ eLocationRequest_nonStandardData = (1 << 30),
+ eLocationRequest_sourceInfo = (1 << 29),
+ eLocationRequest_canMapAlias = (1 << 28),
+ eLocationRequest_gatekeeperIdentifier = (1 << 27),
+ eLocationRequest_tokens = (1 << 26),
+ eLocationRequest_cryptoTokens = (1 << 25),
+ eLocationRequest_integrityCheckValue = (1 << 24),
+ eLocationRequest_desiredProtocols = (1 << 23),
+ eLocationRequest_desiredTunnelledProtocol = (1 << 22),
+ eLocationRequest_featureSet = (1 << 21),
+ eLocationRequest_genericData = (1 << 20),
+ eLocationRequest_hopCount = (1 << 19),
+ eLocationRequest_circuitInfo = (1 << 18),
+ } options;
+ TransportAddress replyAddress;
+} LocationRequest;
+
+typedef struct LocationConfirm { /* SEQUENCE */
+ enum {
+ eLocationConfirm_nonStandardData = (1 << 31),
+ eLocationConfirm_destinationInfo = (1 << 30),
+ eLocationConfirm_destExtraCallInfo = (1 << 29),
+ eLocationConfirm_destinationType = (1 << 28),
+ eLocationConfirm_remoteExtensionAddress = (1 << 27),
+ eLocationConfirm_alternateEndpoints = (1 << 26),
+ eLocationConfirm_tokens = (1 << 25),
+ eLocationConfirm_cryptoTokens = (1 << 24),
+ eLocationConfirm_integrityCheckValue = (1 << 23),
+ eLocationConfirm_alternateTransportAddresses = (1 << 22),
+ eLocationConfirm_supportedProtocols = (1 << 21),
+ eLocationConfirm_multipleCalls = (1 << 20),
+ eLocationConfirm_featureSet = (1 << 19),
+ eLocationConfirm_genericData = (1 << 18),
+ eLocationConfirm_circuitInfo = (1 << 17),
+ eLocationConfirm_serviceControl = (1 << 16),
+ } options;
+ TransportAddress callSignalAddress;
+ TransportAddress rasAddress;
+} LocationConfirm;
+
+typedef struct InfoRequestResponse_callSignalAddress { /* SEQUENCE OF */
+ int count;
+ TransportAddress item[10];
+} InfoRequestResponse_callSignalAddress;
+
+typedef struct InfoRequestResponse { /* SEQUENCE */
+ enum {
+ eInfoRequestResponse_nonStandardData = (1 << 31),
+ eInfoRequestResponse_endpointAlias = (1 << 30),
+ eInfoRequestResponse_perCallInfo = (1 << 29),
+ eInfoRequestResponse_tokens = (1 << 28),
+ eInfoRequestResponse_cryptoTokens = (1 << 27),
+ eInfoRequestResponse_integrityCheckValue = (1 << 26),
+ eInfoRequestResponse_needResponse = (1 << 25),
+ eInfoRequestResponse_capacity = (1 << 24),
+ eInfoRequestResponse_irrStatus = (1 << 23),
+ eInfoRequestResponse_unsolicited = (1 << 22),
+ eInfoRequestResponse_genericData = (1 << 21),
+ } options;
+ TransportAddress rasAddress;
+ InfoRequestResponse_callSignalAddress callSignalAddress;
+} InfoRequestResponse;
+
+typedef struct RasMessage { /* CHOICE */
+ enum {
+ eRasMessage_gatekeeperRequest,
+ eRasMessage_gatekeeperConfirm,
+ eRasMessage_gatekeeperReject,
+ eRasMessage_registrationRequest,
+ eRasMessage_registrationConfirm,
+ eRasMessage_registrationReject,
+ eRasMessage_unregistrationRequest,
+ eRasMessage_unregistrationConfirm,
+ eRasMessage_unregistrationReject,
+ eRasMessage_admissionRequest,
+ eRasMessage_admissionConfirm,
+ eRasMessage_admissionReject,
+ eRasMessage_bandwidthRequest,
+ eRasMessage_bandwidthConfirm,
+ eRasMessage_bandwidthReject,
+ eRasMessage_disengageRequest,
+ eRasMessage_disengageConfirm,
+ eRasMessage_disengageReject,
+ eRasMessage_locationRequest,
+ eRasMessage_locationConfirm,
+ eRasMessage_locationReject,
+ eRasMessage_infoRequest,
+ eRasMessage_infoRequestResponse,
+ eRasMessage_nonStandardMessage,
+ eRasMessage_unknownMessageResponse,
+ eRasMessage_requestInProgress,
+ eRasMessage_resourcesAvailableIndicate,
+ eRasMessage_resourcesAvailableConfirm,
+ eRasMessage_infoRequestAck,
+ eRasMessage_infoRequestNak,
+ eRasMessage_serviceControlIndication,
+ eRasMessage_serviceControlResponse,
+ } choice;
+ union {
+ GatekeeperRequest gatekeeperRequest;
+ GatekeeperConfirm gatekeeperConfirm;
+ RegistrationRequest registrationRequest;
+ RegistrationConfirm registrationConfirm;
+ UnregistrationRequest unregistrationRequest;
+ AdmissionRequest admissionRequest;
+ AdmissionConfirm admissionConfirm;
+ LocationRequest locationRequest;
+ LocationConfirm locationConfirm;
+ InfoRequestResponse infoRequestResponse;
+ };
+} RasMessage;
diff --git a/net/ipv4/netfilter/ip_nat_helper_h323.c b/net/ipv4/netfilter/ip_nat_helper_h323.c
new file mode 100644
index 0000000..a0bc883
--- /dev/null
+++ b/net/ipv4/netfilter/ip_nat_helper_h323.c
@@ -0,0 +1,605 @@
+/*
+ * H.323 extension for NAT alteration.
+ *
+ * Copyright (c) 2006 Jing Min Zhao <zhaojingmin@users.sourceforge.net>
+ *
+ * This source code is licensed under General Public License version 2.
+ *
+ * Based on the 'brute force' H.323 NAT module by
+ * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ *
+ * Changes:
+ * 2006-02-01 - initial version 0.1
+ *
+ * 2006-02-20 - version 0.2
+ * 1. Changed source format to follow kernel conventions
+ * 2. Deleted some unnecessary structures
+ * 3. Minor fixes
+ *
+ * 2006-03-10 - version 0.3
+ * 1. Added support for multiple TPKTs in one packet (suggested by
+ * Patrick McHardy)
+ * 2. Added support for non-linear skb (based on Patrick McHardy's patch)
+ * 3. Eliminated unnecessary return code
+ *
+ * 2006-03-15 - version 0.4
+ * 1. Added support for T.120 channels
+ * 2. Added parameter gkrouted_only (suggested by Patrick McHardy)
+ */
+
+#include <linux/module.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/moduleparam.h>
+#include <net/tcp.h>
+#include <linux/netfilter_ipv4/ip_nat.h>
+#include <linux/netfilter_ipv4/ip_nat_helper.h>
+#include <linux/netfilter_ipv4/ip_nat_rule.h>
+#include <linux/netfilter_ipv4/ip_conntrack_tuple.h>
+#include <linux/netfilter_ipv4/ip_conntrack_h323.h>
+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
+
+#include "ip_conntrack_helper_h323_asn1.h"
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(format, args...)
+#endif
+
+extern int get_h245_addr(unsigned char *data, H245_TransportAddress * addr,
+ u_int32_t * ip, u_int16_t * port);
+extern int get_h225_addr(unsigned char *data, TransportAddress * addr,
+ u_int32_t * ip, u_int16_t * port);
+extern void ip_conntrack_h245_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this);
+extern void ip_conntrack_q931_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this);
+extern int (*set_h245_addr_hook) (struct sk_buff ** pskb,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr,
+ u_int32_t ip, u_int16_t port);
+extern int (*set_h225_addr_hook) (struct sk_buff ** pskb,
+ unsigned char **data, int dataoff,
+ TransportAddress * addr,
+ u_int32_t ip, u_int16_t port);
+extern int (*set_sig_addr_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data,
+ TransportAddress * addr, int count);
+extern int (*set_ras_addr_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data,
+ TransportAddress * addr, int count);
+extern int (*nat_rtp_rtcp_hook) (struct sk_buff ** pskb,
+ struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr,
+ u_int16_t port, u_int16_t rtp_port,
+ struct ip_conntrack_expect * rtp_exp,
+ struct ip_conntrack_expect * rtcp_exp);
+extern int (*nat_t120_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr, u_int16_t port,
+ struct ip_conntrack_expect * exp);
+extern int (*nat_h245_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ TransportAddress * addr, u_int16_t port,
+ struct ip_conntrack_expect * exp);
+extern int (*nat_q931_hook) (struct sk_buff ** pskb, struct ip_conntrack * ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, TransportAddress * addr,
+ int idx, u_int16_t port,
+ struct ip_conntrack_expect * exp);
+
+
+/****************************************************************************/
+static int set_addr(struct sk_buff **pskb,
+ unsigned char **data, int dataoff,
+ unsigned int addroff, u_int32_t ip, u_int16_t port)
+{
+ enum ip_conntrack_info ctinfo;
+ struct ip_conntrack *ct = ip_conntrack_get(*pskb, &ctinfo);
+ struct {
+ u_int32_t ip;
+ u_int16_t port;
+ } __attribute__ ((__packed__)) buf;
+ struct tcphdr _tcph, *th;
+
+ buf.ip = ip;
+ buf.port = htons(port);
+ addroff += dataoff;
+
+ if ((*pskb)->nh.iph->protocol == IPPROTO_TCP) {
+ if (!ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
+ addroff, sizeof(buf),
+ (char *) &buf, sizeof(buf))) {
+ if (net_ratelimit())
+ printk("ip_nat_h323: ip_nat_mangle_tcp_packet"
+ " error\n");
+ return -1;
+ }
+
+ /* Relocate data pointer */
+ th = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl * 4,
+ sizeof(_tcph), &_tcph);
+ if (th == NULL)
+ return -1;
+ *data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
+ th->doff * 4 + dataoff;
+ } else {
+ if (!ip_nat_mangle_udp_packet(pskb, ct, ctinfo,
+ addroff, sizeof(buf),
+ (char *) &buf, sizeof(buf))) {
+ if (net_ratelimit())
+ printk("ip_nat_h323: ip_nat_mangle_udp_packet"
+ " error\n");
+ return -1;
+ }
+ /* ip_nat_mangle_udp_packet uses skb_make_writable() to copy
+ * or pull everything in a linear buffer, so we can safely
+ * use the skb pointers now */
+ *data = (*pskb)->data + (*pskb)->nh.iph->ihl * 4 +
+ sizeof(struct udphdr);
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int set_h225_addr(struct sk_buff **pskb,
+ unsigned char **data, int dataoff,
+ TransportAddress * addr,
+ u_int32_t ip, u_int16_t port)
+{
+ return set_addr(pskb, data, dataoff, addr->ipAddress.ip, ip, port);
+}
+
+/****************************************************************************/
+static int set_h245_addr(struct sk_buff **pskb,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr,
+ u_int32_t ip, u_int16_t port)
+{
+ return set_addr(pskb, data, dataoff,
+ addr->unicastAddress.iPAddress.network, ip, port);
+}
+
+/****************************************************************************/
+static int set_sig_addr(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data,
+ TransportAddress * addr, int count)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ int i;
+ u_int32_t ip;
+ u_int16_t port;
+
+ for (i = 0; i < count; i++) {
+ if (get_h225_addr(*data, &addr[i], &ip, &port)) {
+ if (ip == ct->tuplehash[dir].tuple.src.ip &&
+ port == info->sig_port[dir]) {
+ /* GW->GK */
+
+ /* Fix for Gnomemeeting */
+ if (i > 0 &&
+ get_h225_addr(*data, &addr[0],
+ &ip, &port) &&
+ (ntohl(ip) & 0xff000000) == 0x7f000000)
+ i = 0;
+
+ DEBUGP
+ ("ip_nat_ras: set signal address "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(ip), port,
+ NIPQUAD(ct->tuplehash[!dir].tuple.dst.
+ ip), info->sig_port[!dir]);
+ return set_h225_addr(pskb, data, 0, &addr[i],
+ ct->tuplehash[!dir].
+ tuple.dst.ip,
+ info->sig_port[!dir]);
+ } else if (ip == ct->tuplehash[dir].tuple.dst.ip &&
+ port == info->sig_port[dir]) {
+ /* GK->GW */
+ DEBUGP
+ ("ip_nat_ras: set signal address "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(ip), port,
+ NIPQUAD(ct->tuplehash[!dir].tuple.src.
+ ip), info->sig_port[!dir]);
+ return set_h225_addr(pskb, data, 0, &addr[i],
+ ct->tuplehash[!dir].
+ tuple.src.ip,
+ info->sig_port[!dir]);
+ }
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int set_ras_addr(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data,
+ TransportAddress * addr, int count)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ int i;
+ u_int32_t ip;
+ u_int16_t port;
+
+ for (i = 0; i < count; i++) {
+ if (get_h225_addr(*data, &addr[i], &ip, &port) &&
+ ip == ct->tuplehash[dir].tuple.src.ip &&
+ port == ntohs(ct->tuplehash[dir].tuple.src.u.udp.port)) {
+ DEBUGP("ip_nat_ras: set rasAddress "
+ "%u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(ip), port,
+ NIPQUAD(ct->tuplehash[!dir].tuple.dst.ip),
+ ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.
+ port));
+ return set_h225_addr(pskb, data, 0, &addr[i],
+ ct->tuplehash[!dir].tuple.dst.ip,
+ ntohs(ct->tuplehash[!dir].tuple.
+ dst.u.udp.port));
+ }
+ }
+
+ return 0;
+}
+
+/****************************************************************************/
+static int nat_rtp_rtcp(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr,
+ u_int16_t port, u_int16_t rtp_port,
+ struct ip_conntrack_expect *rtp_exp,
+ struct ip_conntrack_expect *rtcp_exp)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ int i;
+ u_int16_t nated_port;
+
+ /* Set expectations for NAT */
+ rtp_exp->saved_proto.udp.port = rtp_exp->tuple.dst.u.udp.port;
+ rtp_exp->expectfn = ip_nat_follow_master;
+ rtp_exp->dir = !dir;
+ rtcp_exp->saved_proto.udp.port = rtcp_exp->tuple.dst.u.udp.port;
+ rtcp_exp->expectfn = ip_nat_follow_master;
+ rtcp_exp->dir = !dir;
+
+ /* Lookup existing expects */
+ for (i = 0; i < H323_RTP_CHANNEL_MAX; i++) {
+ if (info->rtp_port[i][dir] == rtp_port) {
+ /* Expected */
+
+ /* Use allocated ports first. This will refresh
+ * the expects */
+ rtp_exp->tuple.dst.u.udp.port =
+ htons(info->rtp_port[i][dir]);
+ rtcp_exp->tuple.dst.u.udp.port =
+ htons(info->rtp_port[i][dir] + 1);
+ break;
+ } else if (info->rtp_port[i][dir] == 0) {
+ /* Not expected */
+ break;
+ }
+ }
+
+ /* Run out of expectations */
+ if (i >= H323_RTP_CHANNEL_MAX) {
+ if (net_ratelimit())
+ printk("ip_nat_h323: out of expectations\n");
+ return 0;
+ }
+
+ /* Try to get a pair of ports. */
+ for (nated_port = ntohs(rtp_exp->tuple.dst.u.udp.port);
+ nated_port != 0; nated_port += 2) {
+ rtp_exp->tuple.dst.u.udp.port = htons(nated_port);
+ if (ip_conntrack_expect_related(rtp_exp) == 0) {
+ rtcp_exp->tuple.dst.u.udp.port =
+ htons(nated_port + 1);
+ if (ip_conntrack_expect_related(rtcp_exp) == 0)
+ break;
+ ip_conntrack_unexpect_related(rtp_exp);
+ }
+ }
+
+ if (nated_port == 0) { /* No port available */
+ if (net_ratelimit())
+ printk("ip_nat_h323: out of RTP ports\n");
+ return 0;
+ }
+
+ /* Modify signal */
+ if (set_h245_addr(pskb, data, dataoff, addr,
+ ct->tuplehash[!dir].tuple.dst.ip,
+ (port & 1) ? nated_port + 1 : nated_port) == 0) {
+ /* Save ports */
+ info->rtp_port[i][dir] = rtp_port;
+ info->rtp_port[i][!dir] = nated_port;
+ } else {
+ ip_conntrack_unexpect_related(rtp_exp);
+ ip_conntrack_unexpect_related(rtcp_exp);
+ return -1;
+ }
+
+ /* Success */
+ DEBUGP("ip_nat_h323: expect RTP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(rtp_exp->tuple.src.ip),
+ ntohs(rtp_exp->tuple.src.u.udp.port),
+ NIPQUAD(rtp_exp->tuple.dst.ip),
+ ntohs(rtp_exp->tuple.dst.u.udp.port));
+ DEBUGP("ip_nat_h323: expect RTCP %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(rtcp_exp->tuple.src.ip),
+ ntohs(rtcp_exp->tuple.src.u.udp.port),
+ NIPQUAD(rtcp_exp->tuple.dst.ip),
+ ntohs(rtcp_exp->tuple.dst.u.udp.port));
+
+ return 0;
+}
+
+/****************************************************************************/
+static int nat_t120(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ H245_TransportAddress * addr, u_int16_t port,
+ struct ip_conntrack_expect *exp)
+{
+ int dir = CTINFO2DIR(ctinfo);
+ u_int16_t nated_port = port;
+
+ /* Set expectations for NAT */
+ exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
+ exp->expectfn = ip_nat_follow_master;
+ exp->dir = !dir;
+
+ /* Try to get same port: if not, try to change it. */
+ for (; nated_port != 0; nated_port++) {
+ exp->tuple.dst.u.tcp.port = htons(nated_port);
+ if (ip_conntrack_expect_related(exp) == 0)
+ break;
+ }
+
+ if (nated_port == 0) { /* No port available */
+ if (net_ratelimit())
+ printk("ip_nat_h323: out of TCP ports\n");
+ return 0;
+ }
+
+ /* Modify signal */
+ if (set_h245_addr(pskb, data, dataoff, addr,
+ ct->tuplehash[!dir].tuple.dst.ip, nated_port) < 0) {
+ ip_conntrack_unexpect_related(exp);
+ return -1;
+ }
+
+ DEBUGP("ip_nat_h323: expect T.120 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
+
+ return 0;
+}
+
+/****************************************************************************
+ * This conntrack expect function replaces ip_conntrack_h245_expect()
+ * which was set by ip_conntrack_helper_h323.c. It calls both
+ * ip_nat_follow_master() and ip_conntrack_h245_expect()
+ ****************************************************************************/
+static void ip_nat_h245_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this)
+{
+ ip_nat_follow_master(new, this);
+ ip_conntrack_h245_expect(new, this);
+}
+
+/****************************************************************************/
+static int nat_h245(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, int dataoff,
+ TransportAddress * addr, u_int16_t port,
+ struct ip_conntrack_expect *exp)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ u_int16_t nated_port = port;
+
+ /* Set expectations for NAT */
+ exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
+ exp->expectfn = ip_nat_h245_expect;
+ exp->dir = !dir;
+
+ /* Check existing expects */
+ if (info->sig_port[dir] == port)
+ nated_port = info->sig_port[!dir];
+
+ /* Try to get same port: if not, try to change it. */
+ for (; nated_port != 0; nated_port++) {
+ exp->tuple.dst.u.tcp.port = htons(nated_port);
+ if (ip_conntrack_expect_related(exp) == 0)
+ break;
+ }
+
+ if (nated_port == 0) { /* No port available */
+ if (net_ratelimit())
+ printk("ip_nat_q931: out of TCP ports\n");
+ return 0;
+ }
+
+ /* Modify signal */
+ if (set_h225_addr(pskb, data, dataoff, addr,
+ ct->tuplehash[!dir].tuple.dst.ip,
+ nated_port) == 0) {
+ /* Save ports */
+ info->sig_port[dir] = port;
+ info->sig_port[!dir] = nated_port;
+ } else {
+ ip_conntrack_unexpect_related(exp);
+ return -1;
+ }
+
+ DEBUGP("ip_nat_q931: expect H.245 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
+
+ return 0;
+}
+
+/****************************************************************************
+ * This conntrack expect function replaces ip_conntrack_q931_expect()
+ * which was set by ip_conntrack_helper_h323.c.
+ ****************************************************************************/
+static void ip_nat_q931_expect(struct ip_conntrack *new,
+ struct ip_conntrack_expect *this)
+{
+ struct ip_nat_range range;
+
+ if (this->tuple.src.ip != 0) { /* Only accept calls from GK */
+ ip_nat_follow_master(new, this);
+ goto out;
+ }
+
+ /* This must be a fresh one. */
+ BUG_ON(new->status & IPS_NAT_DONE_MASK);
+
+ /* Change src to where master sends to */
+ range.flags = IP_NAT_RANGE_MAP_IPS;
+ range.min_ip = range.max_ip = new->tuplehash[!this->dir].tuple.src.ip;
+
+ /* hook doesn't matter, but it has to do source manip */
+ ip_nat_setup_info(new, &range, NF_IP_POST_ROUTING);
+
+ /* For DST manip, map port here to where it's expected. */
+ range.flags = (IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED);
+ range.min = range.max = this->saved_proto;
+ range.min_ip = range.max_ip =
+ new->master->tuplehash[!this->dir].tuple.src.ip;
+
+ /* hook doesn't matter, but it has to do destination manip */
+ ip_nat_setup_info(new, &range, NF_IP_PRE_ROUTING);
+
+ out:
+ ip_conntrack_q931_expect(new, this);
+}
+
+/****************************************************************************/
+static int nat_q931(struct sk_buff **pskb, struct ip_conntrack *ct,
+ enum ip_conntrack_info ctinfo,
+ unsigned char **data, TransportAddress * addr, int idx,
+ u_int16_t port, struct ip_conntrack_expect *exp)
+{
+ struct ip_ct_h323_master *info = &ct->help.ct_h323_info;
+ int dir = CTINFO2DIR(ctinfo);
+ u_int16_t nated_port = port;
+ u_int32_t ip;
+
+ /* Set expectations for NAT */
+ exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
+ exp->expectfn = ip_nat_q931_expect;
+ exp->dir = !dir;
+
+ /* Check existing expects */
+ if (info->sig_port[dir] == port)
+ nated_port = info->sig_port[!dir];
+
+ /* Try to get same port: if not, try to change it. */
+ for (; nated_port != 0; nated_port++) {
+ exp->tuple.dst.u.tcp.port = htons(nated_port);
+ if (ip_conntrack_expect_related(exp) == 0)
+ break;
+ }
+
+ if (nated_port == 0) { /* No port available */
+ if (net_ratelimit())
+ printk("ip_nat_ras: out of TCP ports\n");
+ return 0;
+ }
+
+ /* Modify signal */
+ if (set_h225_addr(pskb, data, 0, &addr[idx],
+ ct->tuplehash[!dir].tuple.dst.ip,
+ nated_port) == 0) {
+ /* Save ports */
+ info->sig_port[dir] = port;
+ info->sig_port[!dir] = nated_port;
+
+ /* Fix for Gnomemeeting */
+ if (idx > 0 &&
+ get_h225_addr(*data, &addr[0], &ip, &port) &&
+ (ntohl(ip) & 0xff000000) == 0x7f000000) {
+ set_h225_addr_hook(pskb, data, 0, &addr[0],
+ ct->tuplehash[!dir].tuple.dst.ip,
+ info->sig_port[!dir]);
+ }
+ } else {
+ ip_conntrack_unexpect_related(exp);
+ return -1;
+ }
+
+ /* Success */
+ DEBUGP("ip_nat_ras: expect Q.931 %u.%u.%u.%u:%hu->%u.%u.%u.%u:%hu\n",
+ NIPQUAD(exp->tuple.src.ip), ntohs(exp->tuple.src.u.tcp.port),
+ NIPQUAD(exp->tuple.dst.ip), ntohs(exp->tuple.dst.u.tcp.port));
+
+ return 0;
+}
+
+/****************************************************************************/
+static int __init init(void)
+{
+ BUG_ON(set_h245_addr_hook != NULL);
+ BUG_ON(set_h225_addr_hook != NULL);
+ BUG_ON(set_sig_addr_hook != NULL);
+ BUG_ON(set_ras_addr_hook != NULL);
+ BUG_ON(nat_rtp_rtcp_hook != NULL);
+ BUG_ON(nat_t120_hook != NULL);
+ BUG_ON(nat_h245_hook != NULL);
+ BUG_ON(nat_q931_hook != NULL);
+
+ set_h245_addr_hook = set_h245_addr;
+ set_h225_addr_hook = set_h225_addr;
+ set_sig_addr_hook = set_sig_addr;
+ set_ras_addr_hook = set_ras_addr;
+ nat_rtp_rtcp_hook = nat_rtp_rtcp;
+ nat_t120_hook = nat_t120;
+ nat_h245_hook = nat_h245;
+ nat_q931_hook = nat_q931;
+
+ DEBUGP("ip_nat_h323: init success\n");
+ return 0;
+}
+
+/****************************************************************************/
+static void __exit fini(void)
+{
+ set_h245_addr_hook = NULL;
+ set_h225_addr_hook = NULL;
+ set_sig_addr_hook = NULL;
+ set_ras_addr_hook = NULL;
+ nat_rtp_rtcp_hook = NULL;
+ nat_t120_hook = NULL;
+ nat_h245_hook = NULL;
+ nat_q931_hook = NULL;
+ synchronize_net();
+}
+
+/****************************************************************************/
+module_init(init);
+module_exit(fini);
+
+MODULE_AUTHOR("Jing Min Zhao <zhaojingmin@users.sourceforge.net>");
+MODULE_DESCRIPTION("H.323 NAT helper");
+MODULE_LICENSE("GPL");