[DCCP]: Prepare the AF agnostic core for the introduction of DCCPv6
Basically exports a similar set of functions as the one exported by
the non-AF specific TCP code.
In the process moved some non-AF specific code from dccp_v4_connect to
dccp_connect_init and moved the checksum verification from
dccp_invalid_packet to dccp_v4_rcv, so as to use it in dccp_v6_rcv
too.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index e711f85..93f26dd 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -228,6 +228,9 @@
extern int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct dccp_hdr *dh, const unsigned len);
+extern int dccp_v4_init_sock(struct sock *sk);
+extern int dccp_v4_destroy_sock(struct sock *sk);
+
extern void dccp_close(struct sock *sk, long timeout);
extern struct sk_buff *dccp_make_response(struct sock *sk,
struct dst_entry *dst,
@@ -238,6 +241,7 @@
extern int dccp_connect(struct sock *sk);
extern int dccp_disconnect(struct sock *sk, int flags);
+extern void dccp_unhash(struct sock *sk);
extern int dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
extern int dccp_setsockopt(struct sock *sk, int level, int optname,
@@ -249,6 +253,13 @@
struct msghdr *msg, size_t len, int nonblock,
int flags, int *addr_len);
extern void dccp_shutdown(struct sock *sk, int how);
+extern int inet_dccp_listen(struct socket *sock, int backlog);
+extern unsigned int dccp_poll(struct file *file, struct socket *sock,
+ poll_table *wait);
+extern void dccp_v4_send_check(struct sock *sk, int len,
+ struct sk_buff *skb);
+extern int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
+ int addr_len);
extern int dccp_v4_checksum(const struct sk_buff *skb,
const u32 saddr, const u32 daddr);
@@ -256,6 +267,17 @@
extern int dccp_v4_send_reset(struct sock *sk,
enum dccp_reset_codes code);
extern void dccp_send_close(struct sock *sk, const int active);
+extern int dccp_invalid_packet(struct sk_buff *skb);
+
+static inline int dccp_bad_service_code(const struct sock *sk,
+ const __u32 service)
+{
+ const struct dccp_sock *dp = dccp_sk(sk);
+
+ if (dp->dccps_service == service)
+ return 0;
+ return !dccp_list_has_service(dp->dccps_service_list, service);
+}
struct dccp_skb_cb {
__u8 dccpd_type:4;