[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h
Now the skb->nh union has just one member, .raw, i.e. it is just like the
skb->mac union, strange, no? I'm just leaving it like that till the transport
layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or
->mac_header_offset?), ditto for ->{h,nh}.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 0ee74b1..f2796c9 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -372,7 +372,7 @@
/* We only check the length. A bridge shouldn't do any hop-by-hop stuff anyway */
static int check_hbh_len(struct sk_buff *skb)
{
- unsigned char *raw = (u8 *) (skb->nh.ipv6h + 1);
+ unsigned char *raw = (u8 *)(ipv6_hdr(skb) + 1);
u32 pkt_len;
const unsigned char *nh = skb_network_header(skb);
int off = raw - nh;
@@ -400,7 +400,7 @@
goto bad;
pkt_len = ntohl(*(__be32 *) (nh + off + 2));
if (pkt_len <= IPV6_MAXPLEN ||
- skb->nh.ipv6h->payload_len)
+ ipv6_hdr(skb)->payload_len)
goto bad;
if (pkt_len > skb->len - sizeof(struct ipv6hdr))
goto bad;
@@ -441,7 +441,7 @@
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto inhdr_error;
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
if (hdr->version != 6)
goto inhdr_error;
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index e0faff8..ee82364 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2736,7 +2736,7 @@
skb->protocol = protocol;
skb->dev = odev;
skb->pkt_type = PACKET_HOST;
- skb->nh.ipv6h = iph;
+ skb->nh.raw = (unsigned char *)iph;
skb->h.uh = udph;
if (pkt_dev->nfrags <= 0)
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 627d0c3..64eac25 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -84,8 +84,8 @@
static inline __u32 dccp_v6_init_sequence(struct sk_buff *skb)
{
- return secure_dccpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32,
- skb->nh.ipv6h->saddr.s6_addr32,
+ return secure_dccpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
+ ipv6_hdr(skb)->saddr.s6_addr32,
dccp_hdr(skb)->dccph_dport,
dccp_hdr(skb)->dccph_sport );
@@ -313,6 +313,7 @@
static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
{
struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh;
+ struct ipv6hdr *rxip6h;
const u32 dccp_hdr_reset_len = sizeof(struct dccp_hdr) +
sizeof(struct dccp_hdr_ext) +
sizeof(struct dccp_hdr_reset);
@@ -352,12 +353,13 @@
dccp_hdr_set_ack(dccp_hdr_ack_bits(skb), DCCP_SKB_CB(rxskb)->dccpd_seq);
dccp_csum_outgoing(skb);
- dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxskb->nh.ipv6h->saddr,
- &rxskb->nh.ipv6h->daddr);
+ rxip6h = ipv6_hdr(rxskb);
+ dh->dccph_checksum = dccp_v6_csum_finish(skb, &rxip6h->saddr,
+ &rxip6h->daddr);
memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &rxskb->nh.ipv6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &rxskb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&fl.fl6_dst, &rxip6h->saddr);
+ ipv6_addr_copy(&fl.fl6_src, &rxip6h->daddr);
fl.proto = IPPROTO_DCCP;
fl.oif = inet6_iif(rxskb);
@@ -390,7 +392,7 @@
static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
{
const struct dccp_hdr *dh = dccp_hdr(skb);
- const struct ipv6hdr *iph = skb->nh.ipv6h;
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct sock *nsk;
struct request_sock **prev;
/* Find possible connection requests. */
@@ -460,8 +462,8 @@
goto drop_and_free;
ireq6 = inet6_rsk(req);
- ipv6_addr_copy(&ireq6->rmt_addr, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&ireq6->loc_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&ireq6->rmt_addr, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&ireq6->loc_addr, &ipv6_hdr(skb)->daddr);
ireq6->pktopts = NULL;
if (ipv6_opt_accepted(sk, skb) ||
@@ -546,7 +548,7 @@
newnp->pktoptions = NULL;
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks count
@@ -653,7 +655,7 @@
}
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* Clone native IPv6 options from listening socket (if any)
@@ -826,8 +828,8 @@
goto discard_it;
/* Step 1: If header checksum is incorrect, drop packet and return. */
- if (dccp_v6_csum_finish(skb, &skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr)) {
+ if (dccp_v6_csum_finish(skb, &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr)) {
DCCP_WARN("dropped packet with invalid checksum\n");
goto discard_it;
}
@@ -844,9 +846,9 @@
/* Step 2:
* Look up flow ID in table and get corresponding socket */
- sk = __inet6_lookup(&dccp_hashinfo, &skb->nh.ipv6h->saddr,
+ sk = __inet6_lookup(&dccp_hashinfo, &ipv6_hdr(skb)->saddr,
dh->dccph_sport,
- &skb->nh.ipv6h->daddr, ntohs(dh->dccph_dport),
+ &ipv6_hdr(skb)->daddr, ntohs(dh->dccph_dport),
inet6_iif(skb));
/*
* Step 2:
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 851f46b..969fe31 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -535,7 +535,7 @@
if (skb->protocol == htons(ETH_P_IP)) {
IP_ECN_set_ce(ip_hdr(skb));
} else if (skb->protocol == htons(ETH_P_IPV6)) {
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
}
}
@@ -721,7 +721,7 @@
addr_type = ipv6_addr_type(addr6);
if (addr_type == IPV6_ADDR_ANY) {
- addr6 = &skb->nh.ipv6h->daddr;
+ addr6 = &ipv6_hdr(skb)->daddr;
addr_type = ipv6_addr_type(addr6);
}
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index faa1b9a..edba756 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -26,7 +26,7 @@
static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
{
if (INET_ECN_is_ce(iph->tos))
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
/* Add encapsulation header.
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 1c91438..b682d23 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -325,6 +325,7 @@
*/
struct ipv6_auth_hdr *ah;
+ struct ipv6hdr *ip6h;
struct ah_data *ahp;
unsigned char *tmp_hdr = NULL;
u16 hdr_len;
@@ -357,13 +358,14 @@
tmp_hdr = kmemdup(skb_network_header(skb), hdr_len, GFP_ATOMIC);
if (!tmp_hdr)
goto out;
- if (ipv6_clear_mutable_options(skb->nh.ipv6h, hdr_len, XFRM_POLICY_IN))
+ ip6h = ipv6_hdr(skb);
+ if (ipv6_clear_mutable_options(ip6h, hdr_len, XFRM_POLICY_IN))
goto free_out;
- skb->nh.ipv6h->priority = 0;
- skb->nh.ipv6h->flow_lbl[0] = 0;
- skb->nh.ipv6h->flow_lbl[1] = 0;
- skb->nh.ipv6h->flow_lbl[2] = 0;
- skb->nh.ipv6h->hop_limit = 0;
+ ip6h->priority = 0;
+ ip6h->flow_lbl[0] = 0;
+ ip6h->flow_lbl[1] = 0;
+ ip6h->flow_lbl[2] = 0;
+ ip6h->hop_limit = 0;
{
u8 auth_data[MAX_AH_AUTH_LEN];
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index ac95d3b..f429290 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -254,7 +254,7 @@
skb_put(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
ipv6_addr_copy(&iph->daddr, &fl->fl6_dst);
serr = SKB_EXT_ERR(skb);
@@ -340,7 +340,7 @@
sin->sin6_flowinfo = 0;
sin->sin6_scope_id = 0;
if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP6) {
- ipv6_addr_copy(&sin->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin->sin6_addr, &ipv6_hdr(skb)->saddr);
if (np->rxopt.all)
datagram_recv_ctl(sk, msg, skb);
if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
@@ -391,17 +391,17 @@
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = opt->iif;
- ipv6_addr_copy(&src_info.ipi6_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&src_info.ipi6_addr, &ipv6_hdr(skb)->daddr);
put_cmsg(msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxhlim) {
- int hlim = skb->nh.ipv6h->hop_limit;
+ int hlim = ipv6_hdr(skb)->hop_limit;
put_cmsg(msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
}
if (np->rxopt.bits.rxtclass) {
- int tclass = (ntohl(*(__be32 *)skb->nh.ipv6h) >> 20) & 0xff;
+ int tclass = (ntohl(*(__be32 *)ipv6_hdr(skb)) >> 20) & 0xff;
put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
}
@@ -428,7 +428,7 @@
* IPV6_RECVDSTOPTS is more generic. --yoshfuji
*/
unsigned int off = sizeof(struct ipv6hdr);
- u8 nexthdr = skb->nh.ipv6h->nexthdr;
+ u8 nexthdr = ipv6_hdr(skb)->nexthdr;
while (off <= opt->lastopt) {
unsigned len;
@@ -466,11 +466,11 @@
struct in6_pktinfo src_info;
src_info.ipi6_ifindex = opt->iif;
- ipv6_addr_copy(&src_info.ipi6_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&src_info.ipi6_addr, &ipv6_hdr(skb)->daddr);
put_cmsg(msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxohlim) {
- int hlim = skb->nh.ipv6h->hop_limit;
+ int hlim = ipv6_hdr(skb)->hop_limit;
put_cmsg(msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
}
if (np->rxopt.bits.ohopopts && opt->hop) {
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 6e6b57a..7aff380 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -191,7 +191,7 @@
skb->ip_summed = CHECKSUM_NONE;
esph = (struct ipv6_esp_hdr*)skb->data;
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
/* Get ivec. This can be wrong, check against another impls. */
if (esp->conf.ivlen)
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 9ebf120..dab069b 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -125,7 +125,7 @@
/* Actually, it is redundant check. icmp_send
will recheck in any case.
*/
- if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr))
+ if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr))
break;
case 2: /* send ICMP PARM PROB regardless and drop packet */
icmpv6_param_prob(skb, ICMPV6_UNK_OPTION, optoff);
@@ -202,7 +202,7 @@
struct sk_buff *skb = *skbp;
struct ipv6_destopt_hao *hao;
struct inet6_skb_parm *opt = IP6CB(skb);
- struct ipv6hdr *ipv6h = skb->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct in6_addr tmp_addr;
int ret;
@@ -248,7 +248,7 @@
*skbp = skb = skb2;
hao = (struct ipv6_destopt_hao *)(skb_network_header(skb2) +
optoff);
- ipv6h = skb2->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb2);
}
if (skb->ip_summed == CHECKSUM_COMPLETE)
@@ -414,7 +414,7 @@
return -1;
}
- if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr) ||
+ if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr) ||
skb->pkt_type != PACKET_HOST) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INADDRERRORS);
@@ -522,7 +522,7 @@
#ifdef CONFIG_IPV6_MIP6
case IPV6_SRCRT_TYPE_2:
if (xfrm6_input_addr(skb, (xfrm_address_t *)addr,
- (xfrm_address_t *)&skb->nh.ipv6h->saddr,
+ (xfrm_address_t *)&ipv6_hdr(skb)->saddr,
IPPROTO_ROUTING) < 0) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INADDRERRORS);
@@ -549,8 +549,8 @@
}
ipv6_addr_copy(&daddr, addr);
- ipv6_addr_copy(addr, &skb->nh.ipv6h->daddr);
- ipv6_addr_copy(&skb->nh.ipv6h->daddr, &daddr);
+ ipv6_addr_copy(addr, &ipv6_hdr(skb)->daddr);
+ ipv6_addr_copy(&ipv6_hdr(skb)->daddr, &daddr);
dst_release(xchg(&skb->dst, NULL));
ip6_route_input(skb);
@@ -561,7 +561,7 @@
}
if (skb->dst->dev->flags&IFF_LOOPBACK) {
- if (skb->nh.ipv6h->hop_limit <= 1) {
+ if (ipv6_hdr(skb)->hop_limit <= 1) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
IPSTATS_MIB_INHDRERRORS);
icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT,
@@ -569,7 +569,7 @@
kfree_skb(skb);
return -1;
}
- skb->nh.ipv6h->hop_limit--;
+ ipv6_hdr(skb)->hop_limit--;
goto looped_back;
}
@@ -698,7 +698,7 @@
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff+2);
return 0;
}
- if (skb->nh.ipv6h->payload_len) {
+ if (ipv6_hdr(skb)->payload_len) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, optoff);
return 0;
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index e5293b3..3a01eff 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -129,9 +129,9 @@
static int is_ineligible(struct sk_buff *skb)
{
- int ptr = (u8*)(skb->nh.ipv6h+1) - skb->data;
+ int ptr = (u8 *)(ipv6_hdr(skb) + 1) - skb->data;
int len = skb->len - ptr;
- __u8 nexthdr = skb->nh.ipv6h->nexthdr;
+ __u8 nexthdr = ipv6_hdr(skb)->nexthdr;
if (len < 0)
return 1;
@@ -275,7 +275,7 @@
#ifdef CONFIG_IPV6_MIP6
static void mip6_addr_swap(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
struct inet6_skb_parm *opt = IP6CB(skb);
struct ipv6_destopt_hao *hao;
struct in6_addr tmp;
@@ -303,7 +303,7 @@
struct net_device *dev)
{
struct inet6_dev *idev = NULL;
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
struct sock *sk;
struct ipv6_pinfo *np;
struct in6_addr *saddr = NULL;
@@ -485,7 +485,7 @@
int hlimit;
int tclass;
- saddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->daddr;
if (!ipv6_unicast_destination(skb))
saddr = NULL;
@@ -495,7 +495,7 @@
memset(&fl, 0, sizeof(fl));
fl.proto = IPPROTO_ICMPV6;
- ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
if (saddr)
ipv6_addr_copy(&fl.fl6_src, saddr);
fl.oif = skb->dev->ifindex;
@@ -583,8 +583,8 @@
if (!pskb_may_pull(skb, inner_offset+8))
return;
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
/* BUGGG_FUTURE: we should try to parse exthdrs in this packet.
Without this we will not able f.e. to make source routed
@@ -628,8 +628,8 @@
ICMP6_INC_STATS_BH(idev, ICMP6_MIB_INMSGS);
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
/* Perform checksum. */
switch (skb->ip_summed) {
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index aecc74d..9c3c787 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -96,7 +96,7 @@
if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))
goto err;
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
if (hdr->version != 6)
goto err;
@@ -116,7 +116,7 @@
IP6_INC_STATS_BH(idev, IPSTATS_MIB_INHDRERRORS);
goto drop;
}
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
}
if (hdr->nexthdr == NEXTHDR_HOP) {
@@ -183,7 +183,7 @@
skb_postpull_rcsum(skb, skb_network_header(skb),
skb->h.raw - skb->nh.raw);
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
if (ipv6_addr_is_multicast(&hdr->daddr) &&
!ipv6_chk_mcast_addr(skb->dev, &hdr->daddr,
&hdr->saddr) &&
@@ -234,7 +234,7 @@
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_INMCASTPKTS);
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
deliver = likely(!(skb->dev->flags & (IFF_PROMISC|IFF_ALLMULTI))) ||
ipv6_chk_mcast_addr(skb->dev, &hdr->daddr, NULL);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index bd25825..1900c62 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -107,13 +107,13 @@
skb->protocol = htons(ETH_P_IPV6);
skb->dev = dev;
- if (ipv6_addr_is_multicast(&skb->nh.ipv6h->daddr)) {
+ if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct ipv6_pinfo* np = skb->sk ? inet6_sk(skb->sk) : NULL;
struct inet6_dev *idev = ip6_dst_idev(skb->dst);
if (!(dev->flags & IFF_LOOPBACK) && (!np || np->mc_loop) &&
- ipv6_chk_mcast_addr(dev, &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr)) {
+ ipv6_chk_mcast_addr(dev, &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr)) {
struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC);
/* Do not check for IFF_ALLMULTI; multicast routing
@@ -124,7 +124,7 @@
newskb->dev,
ip6_dev_loopback_xmit);
- if (skb->nh.ipv6h->hop_limit == 0) {
+ if (ipv6_hdr(skb)->hop_limit == 0) {
IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
kfree_skb(skb);
return 0;
@@ -193,7 +193,7 @@
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
/*
* Fill in the IPv6 header
@@ -263,8 +263,8 @@
totlen = len + sizeof(struct ipv6hdr);
- hdr = (struct ipv6hdr *) skb_put(skb, sizeof(struct ipv6hdr));
- skb->nh.ipv6h = hdr;
+ skb->nh.raw = skb_put(skb, sizeof(struct ipv6hdr));
+ hdr = ipv6_hdr(skb);
*(__be32*)hdr = htonl(0x60000000);
@@ -309,7 +309,7 @@
static int ip6_forward_proxy_check(struct sk_buff *skb)
{
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
u8 nexthdr = hdr->nexthdr;
int offset;
@@ -366,7 +366,7 @@
int ip6_forward(struct sk_buff *skb)
{
struct dst_entry *dst = skb->dst;
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
struct inet6_skb_parm *opt = IP6CB(skb);
if (ipv6_devconf.forwarding == 0)
@@ -475,7 +475,7 @@
goto drop;
}
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
/* Mangling hops number delayed to point after skb COW */
@@ -527,10 +527,11 @@
int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
{
u16 offset = sizeof(struct ipv6hdr);
- struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
+ struct ipv6_opt_hdr *exthdr =
+ (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
unsigned int packet_len = skb->tail - skb_network_header(skb);
int found_rhdr = 0;
- *nexthdr = &skb->nh.ipv6h->nexthdr;
+ *nexthdr = &ipv6_hdr(skb)->nexthdr;
while (offset + 1 <= packet_len) {
@@ -643,7 +644,8 @@
first_len = skb_pagelen(skb);
skb->data_len = first_len - skb_headlen(skb);
skb->len = first_len;
- skb->nh.ipv6h->payload_len = htons(first_len - sizeof(struct ipv6hdr));
+ ipv6_hdr(skb)->payload_len = htons(first_len -
+ sizeof(struct ipv6hdr));
dst_hold(&rt->u.dst);
@@ -665,7 +667,9 @@
if (frag->next != NULL)
fh->frag_off |= htons(IP6_MF);
fh->identification = frag_id;
- frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr));
+ ipv6_hdr(frag)->payload_len =
+ htons(frag->len -
+ sizeof(struct ipv6hdr));
ip6_copy_metadata(frag, skb);
}
@@ -779,7 +783,8 @@
fh->frag_off = htons(offset);
if (left > 0)
fh->frag_off |= htons(IP6_MF);
- frag->nh.ipv6h->payload_len = htons(frag->len - sizeof(struct ipv6hdr));
+ ipv6_hdr(frag)->payload_len = htons(frag->len -
+ sizeof(struct ipv6hdr));
ptr += len;
offset += len;
@@ -1355,7 +1360,7 @@
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
*(__be32*)hdr = fl->fl6_flowlabel |
htonl(0x60000000 | ((int)np->cork.tclass << 20));
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index bb65779..05b59a7 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -602,7 +602,7 @@
skb_reset_network_header(skb2);
/* Try to guess incoming interface */
- rt = rt6_lookup(&skb2->nh.ipv6h->saddr, NULL, 0, 0);
+ rt = rt6_lookup(&ipv6_hdr(skb2)->saddr, NULL, 0, 0);
if (rt && rt->rt6i_dev)
skb2->dev = rt->rt6i_dev;
@@ -636,10 +636,10 @@
struct sk_buff *skb)
{
if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
- ipv6_copy_dscp(ipv6h, skb->nh.ipv6h);
+ ipv6_copy_dscp(ipv6h, ipv6_hdr(skb));
if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6h)))
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
static inline int ip6_tnl_rcv_ctl(struct ip6_tnl *t)
@@ -679,10 +679,8 @@
struct ipv6hdr *ipv6h,
struct sk_buff *skb))
{
- struct ipv6hdr *ipv6h;
struct ip6_tnl *t;
-
- ipv6h = skb->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
read_lock(&ip6_tnl_lock);
@@ -836,7 +834,7 @@
{
struct ip6_tnl *t = netdev_priv(dev);
struct net_device_stats *stats = &t->stat;
- struct ipv6hdr *ipv6h = skb->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct ipv6_tel_txoption opt;
struct dst_entry *dst;
struct net_device *tdev;
@@ -909,7 +907,7 @@
}
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
*(__be32*)ipv6h = fl->fl6_flowlabel | htonl(0x60000000);
dsfield = INET_ECN_encapsulate(0, dsfield);
ipv6_change_dsfield(ipv6h, ~INET_ECN_MASK, dsfield);
@@ -983,7 +981,7 @@
ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- struct ipv6hdr *ipv6h = skb->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
int encap_limit = -1;
__u16 offset;
struct flowi fl;
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 3e71d16..e2404a6 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -79,7 +79,7 @@
skb->ip_summed = CHECKSUM_NONE;
/* Remove ipcomp header and decompress original payload */
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
ipch = (void *)skb->data;
skb->h.raw = skb->nh.raw + sizeof(*ipch);
__skb_pull(skb, sizeof(*ipch));
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 1d56b46..d16e0fd 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -101,7 +101,7 @@
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
__skb_pull(skb, sizeof(*ipv6h));
err = -EPROTONOSUPPORT;
@@ -137,7 +137,7 @@
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
__skb_pull(skb, sizeof(*ipv6h));
segs = ERR_PTR(-EPROTONOSUPPORT);
@@ -153,7 +153,7 @@
goto out;
for (skb = segs; skb; skb = skb->next) {
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
ipv6h->payload_len = htons(skb->len - skb->mac_len -
sizeof(*ipv6h));
}
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 924e249..b2b37ba 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1167,11 +1167,11 @@
return -EINVAL;
/* compute payload length excluding extension headers */
- len = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr);
- len -= (char *)skb->h.raw - (char *)skb->nh.ipv6h;
+ len = ntohs(ipv6_hdr(skb)->payload_len) + sizeof(struct ipv6hdr);
+ len -= skb->h.raw - skb->nh.raw;
/* Drop queries with not link local source */
- if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr)&IPV6_ADDR_LINKLOCAL))
+ if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL))
return -EINVAL;
idev = in6_dev_get(skb->dev);
@@ -1303,7 +1303,7 @@
hdr = (struct icmp6hdr*) skb->h.raw;
/* Drop reports with not link local source */
- addr_type = ipv6_addr_type(&skb->nh.ipv6h->saddr);
+ addr_type = ipv6_addr_type(&ipv6_hdr(skb)->saddr);
if (addr_type != IPV6_ADDR_ANY &&
!(addr_type&IPV6_ADDR_LINKLOCAL))
return -EINVAL;
@@ -1441,7 +1441,7 @@
unsigned char ha[MAX_ADDR_LEN];
int err;
- ndisc_mc_map(&skb->nh.ipv6h->daddr, ha, dev, 1);
+ ndisc_mc_map(&ipv6_hdr(skb)->daddr, ha, dev, 1);
err = dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len);
if (err < 0) {
kfree_skb(skb);
@@ -1459,15 +1459,14 @@
static void mld_sendpack(struct sk_buff *skb)
{
- struct ipv6hdr *pip6 = skb->nh.ipv6h;
+ struct ipv6hdr *pip6 = ipv6_hdr(skb);
struct mld2_report *pmr = (struct mld2_report *)skb->h.raw;
int payload_len, mldlen;
struct inet6_dev *idev = in6_dev_get(skb->dev);
int err;
IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
- payload_len = skb->tail - (unsigned char *)skb->nh.ipv6h -
- sizeof(struct ipv6hdr);
+ payload_len = skb->tail - skb_network_header(skb) - sizeof(*pip6);
mldlen = skb->tail - skb->h.raw;
pip6->payload_len = htons(payload_len);
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index bb40335..7b5f9d8 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -129,7 +129,7 @@
static int mip6_destopt_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
struct ipv6_destopt_hdr *destopt = (struct ipv6_destopt_hdr *)skb->data;
if (!ipv6_addr_equal(&iph->saddr, (struct in6_addr *)x->coaddr) &&
@@ -223,16 +223,16 @@
skb_get_timestamp(skb, &stamp);
- if (!mip6_report_rl_allow(&stamp, &skb->nh.ipv6h->daddr,
- hao ? &hao->addr : &skb->nh.ipv6h->saddr,
+ if (!mip6_report_rl_allow(&stamp, &ipv6_hdr(skb)->daddr,
+ hao ? &hao->addr : &ipv6_hdr(skb)->saddr,
opt->iif))
goto out;
memset(&sel, 0, sizeof(sel));
- memcpy(&sel.daddr, (xfrm_address_t *)&skb->nh.ipv6h->daddr,
+ memcpy(&sel.daddr, (xfrm_address_t *)&ipv6_hdr(skb)->daddr,
sizeof(sel.daddr));
sel.prefixlen_d = 128;
- memcpy(&sel.saddr, (xfrm_address_t *)&skb->nh.ipv6h->saddr,
+ memcpy(&sel.saddr, (xfrm_address_t *)&ipv6_hdr(skb)->saddr,
sizeof(sel.saddr));
sel.prefixlen_s = 128;
sel.family = AF_INET6;
@@ -256,12 +256,13 @@
u8 **nexthdr)
{
u16 offset = sizeof(struct ipv6hdr);
- struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
+ struct ipv6_opt_hdr *exthdr =
+ (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
const unsigned char *nh = skb_network_header(skb);
unsigned int packet_len = skb->tail - nh;
int found_rhdr = 0;
- *nexthdr = &skb->nh.ipv6h->nexthdr;
+ *nexthdr = &ipv6_hdr(skb)->nexthdr;
while (offset + 1 <= packet_len) {
@@ -387,12 +388,13 @@
u8 **nexthdr)
{
u16 offset = sizeof(struct ipv6hdr);
- struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr*)(skb->nh.ipv6h + 1);
+ struct ipv6_opt_hdr *exthdr =
+ (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
const unsigned char *nh = skb_network_header(skb);
unsigned int packet_len = skb->tail - nh;
int found_rhdr = 0;
- *nexthdr = &skb->nh.ipv6h->nexthdr;
+ *nexthdr = &ipv6_hdr(skb)->nexthdr;
while (offset + 1 <= packet_len) {
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index a3e3d9e..00feb4c 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -598,7 +598,7 @@
dev->addr_len, dev->type);
/* checksum */
- msg->icmph.icmp6_cksum = csum_ipv6_magic(&skb->nh.ipv6h->saddr,
+ msg->icmph.icmp6_cksum = csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
daddr, len,
IPPROTO_ICMPV6,
csum_partial((__u8 *) msg,
@@ -697,7 +697,7 @@
dev->addr_len, dev->type);
/* checksum */
- hdr->icmp6_cksum = csum_ipv6_magic(&skb->nh.ipv6h->saddr, daddr, len,
+ hdr->icmp6_cksum = csum_ipv6_magic(&ipv6_hdr(skb)->saddr, daddr, len,
IPPROTO_ICMPV6,
csum_partial((__u8 *) hdr, len, 0));
@@ -736,8 +736,8 @@
struct in6_addr *target = (struct in6_addr *)&neigh->primary_key;
int probes = atomic_read(&neigh->probes);
- if (skb && ipv6_chk_addr(&skb->nh.ipv6h->saddr, dev, 1))
- saddr = &skb->nh.ipv6h->saddr;
+ if (skb && ipv6_chk_addr(&ipv6_hdr(skb)->saddr, dev, 1))
+ saddr = &ipv6_hdr(skb)->saddr;
if ((probes -= neigh->parms->ucast_probes) < 0) {
if (!(neigh->nud_state & NUD_VALID)) {
@@ -761,8 +761,8 @@
static void ndisc_recv_ns(struct sk_buff *skb)
{
struct nd_msg *msg = (struct nd_msg *)skb->h.raw;
- struct in6_addr *saddr = &skb->nh.ipv6h->saddr;
- struct in6_addr *daddr = &skb->nh.ipv6h->daddr;
+ struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
+ struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
u8 *lladdr = NULL;
u32 ndoptlen = skb->tail - msg->opt;
struct ndisc_options ndopts;
@@ -939,8 +939,8 @@
static void ndisc_recv_na(struct sk_buff *skb)
{
struct nd_msg *msg = (struct nd_msg *)skb->h.raw;
- struct in6_addr *saddr = &skb->nh.ipv6h->saddr;
- struct in6_addr *daddr = &skb->nh.ipv6h->daddr;
+ struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
+ struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
u8 *lladdr = NULL;
u32 ndoptlen = skb->tail - msg->opt;
struct ndisc_options ndopts;
@@ -1044,7 +1044,7 @@
unsigned long ndoptlen = skb->len - sizeof(*rs_msg);
struct neighbour *neigh;
struct inet6_dev *idev;
- struct in6_addr *saddr = &skb->nh.ipv6h->saddr;
+ struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
struct ndisc_options ndopts;
u8 *lladdr = NULL;
@@ -1110,7 +1110,7 @@
optlen = (skb->tail - skb->h.raw) - sizeof(struct ra_msg);
- if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr) & IPV6_ADDR_LINKLOCAL)) {
+ if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 RA: source address is not link-local.\n");
return;
@@ -1176,7 +1176,7 @@
pref = ICMPV6_ROUTER_PREF_MEDIUM;
#endif
- rt = rt6_get_dflt_router(&skb->nh.ipv6h->saddr, skb->dev);
+ rt = rt6_get_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev);
if (rt)
neigh = rt->rt6i_nexthop;
@@ -1191,7 +1191,7 @@
ND_PRINTK3(KERN_DEBUG
"ICMPv6 RA: adding default router.\n");
- rt = rt6_add_dflt_router(&skb->nh.ipv6h->saddr, skb->dev, pref);
+ rt = rt6_add_dflt_router(&ipv6_hdr(skb)->saddr, skb->dev, pref);
if (rt == NULL) {
ND_PRINTK0(KERN_ERR
"ICMPv6 RA: %s() failed to add default route.\n",
@@ -1263,7 +1263,7 @@
*/
if (!neigh)
- neigh = __neigh_lookup(&nd_tbl, &skb->nh.ipv6h->saddr,
+ neigh = __neigh_lookup(&nd_tbl, &ipv6_hdr(skb)->saddr,
skb->dev, 1);
if (neigh) {
u8 *lladdr = NULL;
@@ -1292,7 +1292,7 @@
if (((struct route_info *)p)->prefix_len > in6_dev->cnf.accept_ra_rt_info_max_plen)
continue;
rt6_route_rcv(skb->dev, (u8*)p, (p->nd_opt_len) << 3,
- &skb->nh.ipv6h->saddr);
+ &ipv6_hdr(skb)->saddr);
}
}
#endif
@@ -1351,7 +1351,7 @@
int optlen;
u8 *lladdr = NULL;
- if (!(ipv6_addr_type(&skb->nh.ipv6h->saddr) & IPV6_ADDR_LINKLOCAL)) {
+ if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: source address is not link-local.\n");
return;
@@ -1416,8 +1416,8 @@
neigh = __neigh_lookup(&nd_tbl, target, skb->dev, 1);
if (neigh) {
- rt6_redirect(dest, &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr, neigh, lladdr,
+ rt6_redirect(dest, &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr, neigh, lladdr,
on_link);
neigh_release(neigh);
}
@@ -1453,14 +1453,14 @@
return;
}
- if (!ipv6_addr_equal(&skb->nh.ipv6h->daddr, target) &&
+ if (!ipv6_addr_equal(&ipv6_hdr(skb)->daddr, target) &&
!(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: target address is not link-local.\n");
return;
}
- ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &skb->nh.ipv6h->saddr,
+ ndisc_flow_init(&fl, NDISC_REDIRECT, &saddr_buf, &ipv6_hdr(skb)->saddr,
dev->ifindex);
dst = ip6_route_output(NULL, &fl);
@@ -1515,7 +1515,7 @@
hlen = 0;
skb_reserve(buff, LL_RESERVED_SPACE(dev));
- ip6_nd_hdr(sk, buff, dev, &saddr_buf, &skb->nh.ipv6h->saddr,
+ ip6_nd_hdr(sk, buff, dev, &saddr_buf, &ipv6_hdr(skb)->saddr,
IPPROTO_ICMPV6, len);
icmph = (struct icmp6hdr *)skb_put(buff, len);
@@ -1531,7 +1531,7 @@
addrp = (struct in6_addr *)(icmph + 1);
ipv6_addr_copy(addrp, target);
addrp++;
- ipv6_addr_copy(addrp, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(addrp, &ipv6_hdr(skb)->daddr);
opt = (u8*) (addrp + 1);
@@ -1552,9 +1552,9 @@
*(opt++) = (rd_len >> 3);
opt += 6;
- memcpy(opt, skb->nh.ipv6h, rd_len - 8);
+ memcpy(opt, ipv6_hdr(skb), rd_len - 8);
- icmph->icmp6_cksum = csum_ipv6_magic(&saddr_buf, &skb->nh.ipv6h->saddr,
+ icmph->icmp6_cksum = csum_ipv6_magic(&saddr_buf, &ipv6_hdr(skb)->saddr,
len, IPPROTO_ICMPV6,
csum_partial((u8 *) icmph, len, 0));
@@ -1588,10 +1588,10 @@
__skb_push(skb, skb->data-skb->h.raw);
- if (skb->nh.ipv6h->hop_limit != 255) {
+ if (ipv6_hdr(skb)->hop_limit != 255) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 NDISC: invalid hop-limit: %d\n",
- skb->nh.ipv6h->hop_limit);
+ ipv6_hdr(skb)->hop_limit);
return 0;
}
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 1c405dd..38b1496 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -11,7 +11,7 @@
int ip6_route_me_harder(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
struct dst_entry *dst;
struct flowi fl = {
.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
@@ -61,7 +61,7 @@
struct ip6_rt_info *rt_info = nf_info_reroute(info);
if (info->hook == NF_IP6_LOCAL_OUT) {
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
rt_info->daddr = iph->daddr;
rt_info->saddr = iph->saddr;
@@ -73,7 +73,7 @@
struct ip6_rt_info *rt_info = nf_info_reroute(info);
if (info->hook == NF_IP6_LOCAL_OUT) {
- struct ipv6hdr *iph = (*pskb)->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(*pskb);
if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
!ipv6_addr_equal(&iph->saddr, &rt_info->saddr))
return ip6_route_me_harder(*pskb);
@@ -84,7 +84,7 @@
__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol)
{
- struct ipv6hdr *ip6h = skb->nh.ipv6h;
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
__sum16 csum = 0;
switch (skb->ip_summed) {
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 7c512e1..caf9e37 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -115,7 +115,7 @@
{
size_t i;
unsigned long ret;
- const struct ipv6hdr *ipv6 = skb->nh.ipv6h;
+ const struct ipv6hdr *ipv6 = ipv6_hdr(skb);
#define FWINV(bool,invflg) ((bool) ^ !!(ip6info->invflags & invflg))
@@ -301,7 +301,7 @@
goto no_match;
ADD_COUNTER(e->counters,
- ntohs((*pskb)->nh.ipv6h->payload_len)
+ ntohs(ipv6_hdr(*pskb)->payload_len)
+ IPV6_HDR_LEN,
1);
@@ -1448,8 +1448,8 @@
int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
int target, unsigned short *fragoff)
{
- unsigned int start = (u8*)(skb->nh.ipv6h + 1) - skb->data;
- u8 nexthdr = skb->nh.ipv6h->nexthdr;
+ unsigned int start = (u8 *)(ipv6_hdr(skb) + 1) - skb->data;
+ u8 nexthdr = ipv6_hdr(skb)->nexthdr;
unsigned int len = skb->len - start;
if (fragoff)
diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c
index ccbab66..4115a57 100644
--- a/net/ipv6/netfilter/ip6t_HL.c
+++ b/net/ipv6/netfilter/ip6t_HL.c
@@ -32,7 +32,7 @@
if (!skb_make_writable(pskb, (*pskb)->len))
return NF_DROP;
- ip6h = (*pskb)->nh.ipv6h;
+ ip6h = ipv6_hdr(*pskb);
switch (info->mode) {
case IP6T_HL_SET:
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index fc9e51a..54d1761 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -422,7 +422,7 @@
printk(" ");
}
- dump_packet(loginfo, skb, (u8*)skb->nh.ipv6h - skb->data, 1);
+ dump_packet(loginfo, skb, skb_network_offset(skb), 1);
printk("\n");
spin_unlock_bh(&log_lock);
}
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 4441bed..cb3d241 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -47,7 +47,7 @@
struct tcphdr otcph, *tcph;
unsigned int otcplen, hh_len;
int tcphoff, needs_ack;
- struct ipv6hdr *oip6h = oldskb->nh.ipv6h, *ip6h;
+ struct ipv6hdr *oip6h = ipv6_hdr(oldskb), *ip6h;
struct dst_entry *dst = NULL;
u8 proto;
struct flowi fl;
@@ -122,7 +122,7 @@
skb_put(nskb, sizeof(struct ipv6hdr));
skb_reset_network_header(nskb);
- ip6h = nskb->nh.ipv6h;
+ ip6h = ipv6_hdr(nskb);
ip6h->version = 6;
ip6h->hop_limit = dst_metric(dst, RTAX_HOPLIMIT);
ip6h->nexthdr = IPPROTO_TCP;
@@ -156,8 +156,8 @@
tcph->check = 0;
/* Adjust TCP checksum */
- tcph->check = csum_ipv6_magic(&nskb->nh.ipv6h->saddr,
- &nskb->nh.ipv6h->daddr,
+ tcph->check = csum_ipv6_magic(&ipv6_hdr(nskb)->saddr,
+ &ipv6_hdr(nskb)->daddr,
sizeof(struct tcphdr), IPPROTO_TCP,
csum_partial((char *)tcph,
sizeof(struct tcphdr), 0));
diff --git a/net/ipv6/netfilter/ip6t_eui64.c b/net/ipv6/netfilter/ip6t_eui64.c
index c267606..0f3dd93 100644
--- a/net/ipv6/netfilter/ip6t_eui64.c
+++ b/net/ipv6/netfilter/ip6t_eui64.c
@@ -42,7 +42,7 @@
memset(eui64, 0, sizeof(eui64));
if (eth_hdr(skb)->h_proto == htons(ETH_P_IPV6)) {
- if (skb->nh.ipv6h->version == 0x6) {
+ if (ipv6_hdr(skb)->version == 0x6) {
memcpy(eui64, eth_hdr(skb)->h_source, 3);
memcpy(eui64 + 5, eth_hdr(skb)->h_source + 3, 3);
eui64[3] = 0xff;
@@ -50,7 +50,7 @@
eui64[0] |= 0x02;
i = 0;
- while ((skb->nh.ipv6h->saddr.s6_addr[8+i] == eui64[i])
+ while ((ipv6_hdr(skb)->saddr.s6_addr[8 + i] == eui64[i])
&& (i < 8))
i++;
diff --git a/net/ipv6/netfilter/ip6t_hl.c b/net/ipv6/netfilter/ip6t_hl.c
index 37c8a4d..d606c0e 100644
--- a/net/ipv6/netfilter/ip6t_hl.c
+++ b/net/ipv6/netfilter/ip6t_hl.c
@@ -25,7 +25,7 @@
int offset, unsigned int protoff, int *hotdrop)
{
const struct ip6t_hl_info *info = matchinfo;
- const struct ipv6hdr *ip6h = skb->nh.ipv6h;
+ const struct ipv6hdr *ip6h = ipv6_hdr(skb);
switch (info->mode) {
case IP6T_HL_EQ:
diff --git a/net/ipv6/netfilter/ip6t_ipv6header.c b/net/ipv6/netfilter/ip6t_ipv6header.c
index 700a11d..fd6a086 100644
--- a/net/ipv6/netfilter/ip6t_ipv6header.c
+++ b/net/ipv6/netfilter/ip6t_ipv6header.c
@@ -45,7 +45,7 @@
/* Make sure this isn't an evil packet */
/* type of the 1st exthdr */
- nexthdr = skb->nh.ipv6h->nexthdr;
+ nexthdr = ipv6_hdr(skb)->nexthdr;
/* pointer to the 1st exthdr */
ptr = sizeof(struct ipv6hdr);
/* available length */
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index da2c199..85b1c27 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -146,21 +146,21 @@
#endif
/* save source/dest address, mark, hoplimit, flowlabel, priority, */
- memcpy(&saddr, &(*pskb)->nh.ipv6h->saddr, sizeof(saddr));
- memcpy(&daddr, &(*pskb)->nh.ipv6h->daddr, sizeof(daddr));
+ memcpy(&saddr, &ipv6_hdr(*pskb)->saddr, sizeof(saddr));
+ memcpy(&daddr, &ipv6_hdr(*pskb)->daddr, sizeof(daddr));
mark = (*pskb)->mark;
- hop_limit = (*pskb)->nh.ipv6h->hop_limit;
+ hop_limit = ipv6_hdr(*pskb)->hop_limit;
/* flowlabel and prio (includes version, which shouldn't change either */
- flowlabel = *((u_int32_t *) (*pskb)->nh.ipv6h);
+ flowlabel = *((u_int32_t *)ipv6_hdr(*pskb));
ret = ip6t_do_table(pskb, hook, in, out, &packet_mangler);
if (ret != NF_DROP && ret != NF_STOLEN
- && (memcmp(&(*pskb)->nh.ipv6h->saddr, &saddr, sizeof(saddr))
- || memcmp(&(*pskb)->nh.ipv6h->daddr, &daddr, sizeof(daddr))
+ && (memcmp(&ipv6_hdr(*pskb)->saddr, &saddr, sizeof(saddr))
+ || memcmp(&ipv6_hdr(*pskb)->daddr, &daddr, sizeof(daddr))
|| (*pskb)->mark != mark
- || (*pskb)->nh.ipv6h->hop_limit != hop_limit))
+ || ipv6_hdr(*pskb)->hop_limit != hop_limit))
return ip6_route_me_harder(*pskb) == 0 ? ret : NF_DROP;
return ret;
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index d110245..fe7f46c 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -138,16 +138,10 @@
ipv6_prepare(struct sk_buff **pskb, unsigned int hooknum, unsigned int *dataoff,
u_int8_t *protonum)
{
- unsigned int extoff;
- unsigned char pnum;
- int protoff;
-
- extoff = (u8*)((*pskb)->nh.ipv6h + 1) - (*pskb)->data;
- pnum = (*pskb)->nh.ipv6h->nexthdr;
-
- protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
- (*pskb)->len - extoff);
-
+ unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data;
+ unsigned char pnum = ipv6_hdr(*pskb)->nexthdr;
+ int protoff = nf_ct_ipv6_skip_exthdr(*pskb, extoff, &pnum,
+ (*pskb)->len - extoff);
/*
* (protoff == (*pskb)->len) mean that the packet doesn't have no data
* except of IPv6 & ext headers. but it's tracked anyway. - YK
@@ -179,9 +173,8 @@
struct nf_conn_help *help;
enum ip_conntrack_info ctinfo;
unsigned int ret, protoff;
- unsigned int extoff = (u8*)((*pskb)->nh.ipv6h + 1)
- - (*pskb)->data;
- unsigned char pnum = (*pskb)->nh.ipv6h->nexthdr;
+ unsigned int extoff = (u8 *)(ipv6_hdr(*pskb) + 1) - (*pskb)->data;
+ unsigned char pnum = ipv6_hdr(*pskb)->nexthdr;
/* This is where we call the helper: as the packet goes out. */
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index bc1d095..d3fbb1f 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -400,8 +400,8 @@
}
offset = ntohs(fhdr->frag_off) & ~0x7;
- end = offset + (ntohs(skb->nh.ipv6h->payload_len) -
- ((u8 *) (fhdr + 1) - (u8 *) (skb->nh.ipv6h + 1)));
+ end = offset + (ntohs(ipv6_hdr(skb)->payload_len) -
+ ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
if ((unsigned int)end > IPV6_MAXPLEN) {
DEBUGP("offset is too large.\n");
@@ -652,7 +652,7 @@
head->next = NULL;
head->dev = dev;
head->tstamp = fq->stamp;
- head->nh.ipv6h->payload_len = htons(payload_len);
+ ipv6_hdr(head)->payload_len = htons(payload_len);
/* Yes, and fold redundant checksum back. 8) */
if (head->ip_summed == CHECKSUM_COMPLETE)
@@ -706,9 +706,9 @@
static int
find_prev_fhdr(struct sk_buff *skb, u8 *prevhdrp, int *prevhoff, int *fhoff)
{
- u8 nexthdr = skb->nh.ipv6h->nexthdr;
- u8 prev_nhoff = (u8 *)&skb->nh.ipv6h->nexthdr - skb->data;
- int start = (u8 *)(skb->nh.ipv6h+1) - skb->data;
+ u8 nexthdr = ipv6_hdr(skb)->nexthdr;
+ u8 prev_nhoff = (u8 *)&ipv6_hdr(skb)->nexthdr - skb->data;
+ int start = (u8 *)(ipv6_hdr(skb) + 1) - skb->data;
int len = skb->len - start;
u8 prevhdr = NEXTHDR_IPV6;
@@ -764,7 +764,7 @@
struct sk_buff *ret_skb = NULL;
/* Jumbo payload inhibits frag. header */
- if (skb->nh.ipv6h->payload_len == 0) {
+ if (ipv6_hdr(skb)->payload_len == 0) {
DEBUGP("payload len = 0\n");
return skb;
}
@@ -786,7 +786,7 @@
}
clone->h.raw = clone->data + fhoff;
- hdr = clone->nh.ipv6h;
+ hdr = ipv6_hdr(clone);
fhdr = (struct frag_hdr *)clone->h.raw;
if (!(fhdr->frag_off & htons(0xFFF9))) {
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 9b2bcde..0e2b56c 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -152,7 +152,7 @@
int delivered = 0;
__u8 hash;
- saddr = &skb->nh.ipv6h->saddr;
+ saddr = &ipv6_hdr(skb)->saddr;
daddr = saddr + 1;
hash = nexthdr & (MAX_INET_PROTOS - 1);
@@ -363,15 +363,16 @@
if (skb->ip_summed == CHECKSUM_COMPLETE) {
skb_postpull_rcsum(skb, skb_network_header(skb),
skb->h.raw - skb->nh.raw);
- if (!csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
+ if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
skb->len, inet->num, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
if (skb->ip_summed != CHECKSUM_UNNECESSARY)
- skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- skb->len, inet->num, 0));
+ skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
+ skb->len,
+ inet->num, 0));
if (inet->hdrincl) {
if (skb_checksum_complete(skb)) {
@@ -438,7 +439,7 @@
if (sin6) {
sin6->sin6_family = AF_INET6;
sin6->sin6_port = 0;
- ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr);
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
@@ -578,7 +579,7 @@
skb_put(skb, length);
skb_reset_network_header(skb);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
skb->ip_summed = CHECKSUM_NONE;
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index f85e49a..156a37f 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -430,8 +430,8 @@
goto err;
offset = ntohs(fhdr->frag_off) & ~0x7;
- end = offset + (ntohs(skb->nh.ipv6h->payload_len) -
- ((u8 *) (fhdr + 1) - (u8 *) (skb->nh.ipv6h + 1)));
+ end = offset + (ntohs(ipv6_hdr(skb)->payload_len) -
+ ((u8 *)(fhdr + 1) - (u8 *)(ipv6_hdr(skb) + 1)));
if ((unsigned int)end > IPV6_MAXPLEN) {
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst),
@@ -671,7 +671,7 @@
head->next = NULL;
head->dev = dev;
head->tstamp = fq->stamp;
- head->nh.ipv6h->payload_len = htons(payload_len);
+ ipv6_hdr(head)->payload_len = htons(payload_len);
IP6CB(head)->nhoff = nhoff;
*skb_in = head;
@@ -708,9 +708,7 @@
struct net_device *dev = skb->dev;
struct frag_hdr *fhdr;
struct frag_queue *fq;
- struct ipv6hdr *hdr;
-
- hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS);
@@ -726,7 +724,7 @@
return -1;
}
- hdr = skb->nh.ipv6h;
+ hdr = ipv6_hdr(skb);
fhdr = (struct frag_hdr *)skb->h.raw;
if (!(fhdr->frag_off & htons(0xFFF9))) {
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 0aa4762..52cbe1c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -726,7 +726,7 @@
void ip6_route_input(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
int flags = RT6_LOOKUP_F_HAS_SADDR;
struct flowi fl = {
.iif = skb->dev->ifindex,
@@ -1775,7 +1775,7 @@
int type;
switch (ipstats_mib_noroutes) {
case IPSTATS_MIB_INNOROUTES:
- type = ipv6_addr_type(&skb->nh.ipv6h->daddr);
+ type = ipv6_addr_type(&ipv6_hdr(skb)->daddr);
if (type == IPV6_ADDR_ANY || type == IPV6_ADDR_RESERVED) {
IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INADDRERRORS);
break;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index e33ac3c..18ec86f 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -366,7 +366,7 @@
static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
{
if (INET_ECN_is_ce(iph->tos))
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
static int ipip6_rcv(struct sk_buff *skb)
@@ -430,7 +430,7 @@
struct ip_tunnel *tunnel = netdev_priv(dev);
struct net_device_stats *stats = &tunnel->stat;
struct iphdr *tiph = &tunnel->parms.iph;
- struct ipv6hdr *iph6 = skb->nh.ipv6h;
+ struct ipv6hdr *iph6 = ipv6_hdr(skb);
u8 tos = tunnel->parms.iph.tos;
struct rtable *rt; /* Route to the other host */
struct net_device *tdev; /* Device to other host */
@@ -468,7 +468,7 @@
addr_type = ipv6_addr_type(addr6);
if (addr_type == IPV6_ADDR_ANY) {
- addr6 = &skb->nh.ipv6h->daddr;
+ addr6 = &ipv6_hdr(skb)->daddr;
addr_type = ipv6_addr_type(addr6);
}
@@ -550,7 +550,7 @@
skb_set_owner_w(new_skb, skb->sk);
dev_kfree_skb(skb);
skb = new_skb;
- iph6 = skb->nh.ipv6h;
+ iph6 = ipv6_hdr(skb);
}
skb->h.raw = skb->nh.raw;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 80a52ab..85b3e89 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -115,8 +115,8 @@
static __u32 tcp_v6_init_sequence(struct sk_buff *skb)
{
- return secure_tcpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32,
- skb->nh.ipv6h->saddr.s6_addr32,
+ return secure_tcpv6_sequence_number(ipv6_hdr(skb)->daddr.s6_addr32,
+ ipv6_hdr(skb)->saddr.s6_addr32,
skb->h.th->dest,
skb->h.th->source);
}
@@ -837,7 +837,7 @@
{
__u8 *hash_location = NULL;
struct tcp_md5sig_key *hash_expected;
- struct ipv6hdr *ip6h = skb->nh.ipv6h;
+ struct ipv6hdr *ip6h = ipv6_hdr(skb);
struct tcphdr *th = skb->h.th;
int length = (th->doff << 2) - sizeof (*th);
int genhash;
@@ -966,7 +966,7 @@
if (!pskb_may_pull(skb, sizeof(*th)))
return -EINVAL;
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
th = skb->h.th;
th->check = 0;
@@ -995,7 +995,7 @@
#ifdef CONFIG_TCP_MD5SIG
if (sk)
- key = tcp_v6_md5_do_lookup(sk, &skb->nh.ipv6h->daddr);
+ key = tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr);
else
key = NULL;
@@ -1039,20 +1039,18 @@
(TCPOPT_NOP << 16) |
(TCPOPT_MD5SIG << 8) |
TCPOLEN_MD5SIG);
- tcp_v6_do_calc_md5_hash((__u8*)&opt[1],
- key,
- &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr,
- t1, IPPROTO_TCP,
- tot_len);
+ tcp_v6_do_calc_md5_hash((__u8 *)&opt[1], key,
+ &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr,
+ t1, IPPROTO_TCP, tot_len);
}
#endif
buff->csum = csum_partial((char *)t1, sizeof(*t1), 0);
memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&fl.fl6_src, &ipv6_hdr(skb)->daddr);
t1->check = csum_ipv6_magic(&fl.fl6_src, &fl.fl6_dst,
sizeof(*t1), IPPROTO_TCP,
@@ -1093,7 +1091,7 @@
#ifdef CONFIG_TCP_MD5SIG
if (!tw && skb->sk) {
- key = tcp_v6_md5_do_lookup(skb->sk, &skb->nh.ipv6h->daddr);
+ key = tcp_v6_md5_do_lookup(skb->sk, &ipv6_hdr(skb)->daddr);
} else if (tw && tw->tw_md5_keylen) {
tw_key.key = tw->tw_md5_key;
tw_key.keylen = tw->tw_md5_keylen;
@@ -1142,20 +1140,18 @@
if (key) {
*topt++ = htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |
(TCPOPT_MD5SIG << 8) | TCPOLEN_MD5SIG);
- tcp_v6_do_calc_md5_hash((__u8 *)topt,
- key,
- &skb->nh.ipv6h->daddr,
- &skb->nh.ipv6h->saddr,
- t1, IPPROTO_TCP,
- tot_len);
+ tcp_v6_do_calc_md5_hash((__u8 *)topt, key,
+ &ipv6_hdr(skb)->daddr,
+ &ipv6_hdr(skb)->saddr,
+ t1, IPPROTO_TCP, tot_len);
}
#endif
buff->csum = csum_partial((char *)t1, tot_len, 0);
memset(&fl, 0, sizeof(fl));
- ipv6_addr_copy(&fl.fl6_dst, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&fl.fl6_src, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&fl.fl6_dst, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&fl.fl6_src, &ipv6_hdr(skb)->daddr);
t1->check = csum_ipv6_magic(&fl.fl6_src, &fl.fl6_dst,
tot_len, IPPROTO_TCP,
@@ -1204,13 +1200,13 @@
/* Find possible connection requests. */
req = inet6_csk_search_req(sk, &prev, th->source,
- &skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr, inet6_iif(skb));
+ &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr, inet6_iif(skb));
if (req)
return tcp_check_req(sk, skb, req, prev);
- nsk = __inet6_lookup_established(&tcp_hashinfo, &skb->nh.ipv6h->saddr,
- th->source, &skb->nh.ipv6h->daddr,
+ nsk = __inet6_lookup_established(&tcp_hashinfo, &ipv6_hdr(skb)->saddr,
+ th->source, &ipv6_hdr(skb)->daddr,
ntohs(th->dest), inet6_iif(skb));
if (nsk) {
@@ -1277,8 +1273,8 @@
tcp_openreq_init(req, &tmp_opt, skb);
treq = inet6_rsk(req);
- ipv6_addr_copy(&treq->rmt_addr, &skb->nh.ipv6h->saddr);
- ipv6_addr_copy(&treq->loc_addr, &skb->nh.ipv6h->daddr);
+ ipv6_addr_copy(&treq->rmt_addr, &ipv6_hdr(skb)->saddr);
+ ipv6_addr_copy(&treq->loc_addr, &ipv6_hdr(skb)->daddr);
TCP_ECN_create_request(req, skb->h.th);
treq->pktopts = NULL;
if (ipv6_opt_accepted(sk, skb) ||
@@ -1365,7 +1361,7 @@
newnp->pktoptions = NULL;
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/*
* No need to charge this sock to the relevant IPv6 refcnt debug socks count
@@ -1473,7 +1469,7 @@
}
newnp->opt = NULL;
newnp->mcast_oif = inet6_iif(skb);
- newnp->mcast_hops = skb->nh.ipv6h->hop_limit;
+ newnp->mcast_hops = ipv6_hdr(skb)->hop_limit;
/* Clone native IPv6 options from listening socket (if any)
@@ -1532,15 +1528,16 @@
static __sum16 tcp_v6_checksum_init(struct sk_buff *skb)
{
if (skb->ip_summed == CHECKSUM_COMPLETE) {
- if (!tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,skb->csum)) {
+ if (!tcp_v6_check(skb->h.th, skb->len, &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr, skb->csum)) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
return 0;
}
}
- skb->csum = ~csum_unfold(tcp_v6_check(skb->h.th,skb->len,&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr, 0));
+ skb->csum = ~csum_unfold(tcp_v6_check(skb->h.th, skb->len,
+ &ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr, 0));
if (skb->len <= 76) {
return __skb_checksum_complete(skb);
@@ -1668,7 +1665,7 @@
if (np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo)
np->mcast_oif = inet6_iif(opt_skb);
if (np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim)
- np->mcast_hops = opt_skb->nh.ipv6h->hop_limit;
+ np->mcast_hops = ipv6_hdr(opt_skb)->hop_limit;
if (ipv6_opt_accepted(sk, opt_skb)) {
skb_set_owner_r(opt_skb, sk);
opt_skb = xchg(&np->pktoptions, opt_skb);
@@ -1718,11 +1715,11 @@
skb->len - th->doff*4);
TCP_SKB_CB(skb)->ack_seq = ntohl(th->ack_seq);
TCP_SKB_CB(skb)->when = 0;
- TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(skb->nh.ipv6h);
+ TCP_SKB_CB(skb)->flags = ipv6_get_dsfield(ipv6_hdr(skb));
TCP_SKB_CB(skb)->sacked = 0;
- sk = __inet6_lookup(&tcp_hashinfo, &skb->nh.ipv6h->saddr, th->source,
- &skb->nh.ipv6h->daddr, ntohs(th->dest),
+ sk = __inet6_lookup(&tcp_hashinfo, &ipv6_hdr(skb)->saddr, th->source,
+ &ipv6_hdr(skb)->daddr, ntohs(th->dest),
inet6_iif(skb));
if (!sk)
@@ -1802,7 +1799,7 @@
struct sock *sk2;
sk2 = inet6_lookup_listener(&tcp_hashinfo,
- &skb->nh.ipv6h->daddr,
+ &ipv6_hdr(skb)->daddr,
ntohs(th->dest), inet6_iif(skb));
if (sk2 != NULL) {
struct inet_timewait_sock *tw = inet_twsk(sk);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index e991e60..55affe3 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -180,7 +180,8 @@
ipv6_addr_set(&sin6->sin6_addr, 0, 0,
htonl(0xffff), ip_hdr(skb)->saddr);
else {
- ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin6->sin6_addr,
+ &ipv6_hdr(skb)->saddr);
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
sin6->sin6_scope_id = IP6CB(skb)->iif;
}
@@ -392,13 +393,13 @@
return 1;
}
if (skb->ip_summed == CHECKSUM_COMPLETE &&
- !csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr,
+ !csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->len, proto, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (skb->ip_summed != CHECKSUM_UNNECESSARY)
- skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
+ skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
skb->len, proto, 0));
return 0;
@@ -417,8 +418,8 @@
if (!pskb_may_pull(skb, sizeof(struct udphdr)))
goto short_packet;
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
uh = skb->h.uh;
ulen = ntohs(uh->len);
@@ -438,8 +439,8 @@
if (ulen < skb->len) {
if (pskb_trim_rcsum(skb, ulen))
goto short_packet;
- saddr = &skb->nh.ipv6h->saddr;
- daddr = &skb->nh.ipv6h->daddr;
+ saddr = &ipv6_hdr(skb)->saddr;
+ daddr = &ipv6_hdr(skb)->daddr;
uh = skb->h.uh;
}
}
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 5c929f8..f30ef16 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -35,7 +35,7 @@
goto drop;
do {
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
if (xfrm_nr == XFRM_MAX_DEPTH)
goto drop;
@@ -112,7 +112,7 @@
return -1;
} else {
#ifdef CONFIG_NETFILTER
- skb->nh.ipv6h->payload_len = htons(skb->len);
+ ipv6_hdr(skb)->payload_len = htons(skb->len);
__skb_push(skb, skb->data - skb_network_header(skb));
NF_HOOK(PF_INET6, NF_IP6_PRE_ROUTING, skb, skb->dev, NULL,
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index 247e2d5..b5a48c2 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -38,7 +38,7 @@
int hdr_len;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
hdr_len = ip6_find_1stfragopt(skb, &prevhdr);
skb->nh.raw = prevhdr - x->props.header_len;
@@ -46,7 +46,7 @@
memmove(skb->data, iph, hdr_len);
skb_reset_network_header(skb);
- top_iph = skb->nh.ipv6h;
+ top_iph = ipv6_hdr(skb);
skb->nh.raw = &top_iph->nexthdr;
skb->h.ipv6h = top_iph + 1;
@@ -74,7 +74,7 @@
skb_set_mac_header(skb, -skb->mac_len);
memmove(skb_mac_header(skb), old_mac, skb->mac_len);
- ip6h = skb->nh.ipv6h;
+ ip6h = ipv6_hdr(skb);
ip6h->payload_len = htons(skb->len - size);
ipv6_addr_copy(&ip6h->daddr, (struct in6_addr *) &x->sel.daddr.a6);
ipv6_addr_copy(&ip6h->saddr, (struct in6_addr *) &x->sel.saddr.a6);
diff --git a/net/ipv6/xfrm6_mode_ro.c b/net/ipv6/xfrm6_mode_ro.c
index 6031c16..d01958d 100644
--- a/net/ipv6/xfrm6_mode_ro.c
+++ b/net/ipv6/xfrm6_mode_ro.c
@@ -50,7 +50,7 @@
int hdr_len;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
skb->nh.raw = prevhdr - x->props.header_len;
diff --git a/net/ipv6/xfrm6_mode_transport.c b/net/ipv6/xfrm6_mode_transport.c
index ace0bbf..358b60d 100644
--- a/net/ipv6/xfrm6_mode_transport.c
+++ b/net/ipv6/xfrm6_mode_transport.c
@@ -32,7 +32,7 @@
int hdr_len;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
hdr_len = x->type->hdr_offset(x, skb, &prevhdr);
skb->nh.raw = prevhdr - x->props.header_len;
@@ -57,7 +57,7 @@
memmove(skb->h.raw, skb_network_header(skb), ihl);
skb->nh.raw = skb->h.raw;
}
- skb->nh.ipv6h->payload_len = htons(skb->len + ihl -
+ ipv6_hdr(skb)->payload_len = htons(skb->len + ihl -
sizeof(struct ipv6hdr));
skb->h.raw = skb->data;
return 0;
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 498f17b..28f36b3 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -18,7 +18,7 @@
static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
{
- struct ipv6hdr *outer_iph = skb->nh.ipv6h;
+ struct ipv6hdr *outer_iph = ipv6_hdr(skb);
struct ipv6hdr *inner_iph = skb->h.ipv6h;
if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
@@ -27,7 +27,7 @@
static inline void ip6ip_ecn_decapsulate(struct sk_buff *skb)
{
- if (INET_ECN_is_ce(ipv6_get_dsfield(skb->nh.ipv6h)))
+ if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6_hdr(skb))))
IP_ECN_set_ce(skb->h.ipiph);
}
@@ -51,10 +51,10 @@
int dsfield;
skb_push(skb, x->props.header_len);
- iph = skb->nh.ipv6h;
+ iph = ipv6_hdr(skb);
skb_reset_network_header(skb);
- top_iph = skb->nh.ipv6h;
+ top_iph = ipv6_hdr(skb);
skb->nh.raw = &top_iph->nexthdr;
skb->h.ipv6h = top_iph + 1;
@@ -102,7 +102,7 @@
nh = skb_network_header(skb);
if (nh[IP6CB(skb)->nhoff] == IPPROTO_IPV6) {
if (x->props.flags & XFRM_STATE_DECAP_DSCP)
- ipv6_copy_dscp(skb->nh.ipv6h, skb->h.ipv6h);
+ ipv6_copy_dscp(ipv6_hdr(skb), skb->h.ipv6h);
if (!(x->props.flags & XFRM_STATE_NOECN))
ipip6_ecn_decapsulate(skb);
} else {
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index cb5a723..b93bfb8 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -271,7 +271,7 @@
_decode_session6(struct sk_buff *skb, struct flowi *fl)
{
u16 offset = skb->h.raw - skb->nh.raw;
- struct ipv6hdr *hdr = skb->nh.ipv6h;
+ struct ipv6hdr *hdr = ipv6_hdr(skb);
struct ipv6_opt_hdr *exthdr;
const unsigned char *nh = skb_network_header(skb);
u8 nexthdr = nh[IP6CB(skb)->nhoff];
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 93c4223..538499a 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -257,7 +257,7 @@
static int xfrm6_tunnel_rcv(struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
__be32 spi;
spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&iph->saddr);
diff --git a/net/netfilter/xt_DSCP.c b/net/netfilter/xt_DSCP.c
index de647bd..a97704a 100644
--- a/net/netfilter/xt_DSCP.c
+++ b/net/netfilter/xt_DSCP.c
@@ -56,13 +56,13 @@
const void *targinfo)
{
const struct xt_DSCP_info *dinfo = targinfo;
- u_int8_t dscp = ipv6_get_dsfield((*pskb)->nh.ipv6h) >> XT_DSCP_SHIFT;
+ u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(*pskb)) >> XT_DSCP_SHIFT;
if (dscp != dinfo->dscp) {
if (!skb_make_writable(pskb, sizeof(struct ipv6hdr)))
return NF_DROP;
- ipv6_change_dsfield((*pskb)->nh.ipv6h, (__u8)(~XT_DSCP_MASK),
+ ipv6_change_dsfield(ipv6_hdr(*pskb), (__u8)(~XT_DSCP_MASK),
dinfo->dscp << XT_DSCP_SHIFT);
}
return XT_CONTINUE;
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index 9e948ce..15fe8f6 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -171,7 +171,7 @@
const struct xt_target *target,
const void *targinfo)
{
- struct ipv6hdr *ipv6h = (*pskb)->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(*pskb);
u8 nexthdr;
int tcphoff;
int ret;
@@ -187,7 +187,7 @@
if (ret < 0)
return NF_DROP;
if (ret > 0) {
- ipv6h = (*pskb)->nh.ipv6h;
+ ipv6h = ipv6_hdr(*pskb);
ipv6h->payload_len = htons(ntohs(ipv6h->payload_len) + ret);
}
return XT_CONTINUE;
diff --git a/net/netfilter/xt_dscp.c b/net/netfilter/xt_dscp.c
index 9ec294c..000e9c2 100644
--- a/net/netfilter/xt_dscp.c
+++ b/net/netfilter/xt_dscp.c
@@ -49,7 +49,7 @@
int *hotdrop)
{
const struct xt_dscp_info *info = matchinfo;
- u_int8_t dscp = ipv6_get_dsfield(skb->nh.ipv6h) >> XT_DSCP_SHIFT;
+ u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> XT_DSCP_SHIFT;
return (dscp == info->dscp) ^ !!info->invert;
}
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 47af19a..eb93291 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -392,10 +392,10 @@
#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
case AF_INET6:
if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_DIP)
- memcpy(&dst->addr.ip6.dst, &skb->nh.ipv6h->daddr,
+ memcpy(&dst->addr.ip6.dst, &ipv6_hdr(skb)->daddr,
sizeof(dst->addr.ip6.dst));
if (hinfo->cfg.mode & XT_HASHLIMIT_HASH_SIP)
- memcpy(&dst->addr.ip6.src, &skb->nh.ipv6h->saddr,
+ memcpy(&dst->addr.ip6.src, &ipv6_hdr(skb)->saddr,
sizeof(dst->addr.ip6.src));
if (!(hinfo->cfg.mode &
diff --git a/net/netfilter/xt_length.c b/net/netfilter/xt_length.c
index 65fdb21..77288c5 100644
--- a/net/netfilter/xt_length.c
+++ b/net/netfilter/xt_length.c
@@ -47,7 +47,8 @@
int *hotdrop)
{
const struct xt_length_info *info = matchinfo;
- u_int16_t pktlen = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr);
+ const u_int16_t pktlen = (ntohs(ipv6_hdr(skb)->payload_len) +
+ sizeof(struct ipv6hdr));
return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
}
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index cb8cf5b..6f373b0 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -143,7 +143,7 @@
u8 tunnelid = 0;
u8 *xprt;
#if RSVP_DST_LEN == 4
- struct ipv6hdr *nhptr = skb->nh.ipv6h;
+ struct ipv6hdr *nhptr = ipv6_hdr(skb);
#else
struct iphdr *nhptr = ip_hdr(skb);
#endif
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 45b5734..2c857af 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -220,7 +220,7 @@
& ~INET_ECN_MASK;
break;
case __constant_htons(ETH_P_IPV6):
- skb->tc_index = ipv6_get_dsfield(skb->nh.ipv6h)
+ skb->tc_index = ipv6_get_dsfield(ipv6_hdr(skb))
& ~INET_ECN_MASK;
break;
default:
@@ -296,7 +296,7 @@
p->value[index]);
break;
case __constant_htons(ETH_P_IPV6):
- ipv6_change_dsfield(skb->nh.ipv6h, p->mask[index],
+ ipv6_change_dsfield(ipv6_hdr(skb), p->mask[index],
p->value[index]);
break;
default:
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 02081bc..e369540 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -152,7 +152,7 @@
}
case __constant_htons(ETH_P_IPV6):
{
- struct ipv6hdr *iph = skb->nh.ipv6h;
+ struct ipv6hdr *iph = ipv6_hdr(skb);
h = iph->daddr.s6_addr32[3];
h2 = iph->saddr.s6_addr32[3]^iph->nexthdr;
if (iph->nexthdr == IPPROTO_TCP ||
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 742f9ff..001be2d 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -393,10 +393,10 @@
sh = (struct sctphdr *) skb->h.raw;
if (is_saddr) {
*port = sh->source;
- from = &skb->nh.ipv6h->saddr;
+ from = &ipv6_hdr(skb)->saddr;
} else {
*port = sh->dest;
- from = &skb->nh.ipv6h->daddr;
+ from = &ipv6_hdr(skb)->daddr;
}
ipv6_addr_copy(&addr->v6.sin6_addr, from);
}
@@ -698,7 +698,7 @@
/* Was this packet marked by Explicit Congestion Notification? */
static int sctp_v6_is_ce(const struct sk_buff *skb)
{
- return *((__u32 *)(skb->nh.ipv6h)) & htonl(1<<20);
+ return *((__u32 *)(ipv6_hdr(skb))) & htonl(1 << 20);
}
/* Dump the v6 addr to the seq file. */
@@ -777,7 +777,7 @@
}
/* Otherwise, just copy the v6 address. */
- ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
+ ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr);
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) {
struct sctp_ulpevent *ev = sctp_skb2event(skb);
sin6->sin6_scope_id = ev->iif;