[IPV6]: Introduce inet6_rsk()
And inet6_rsk_offset in inet_request_sock, for the same reasons as
inet_sock's pinfo6 member.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/ip.h b/include/linux/ip.h
index 33e8a19..5a560da 100644
--- a/include/linux/ip.h
+++ b/include/linux/ip.h
@@ -110,6 +110,10 @@
struct inet_request_sock {
struct request_sock req;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ u16 inet6_rsk_offset;
+ /* 2 bytes hole, try to pack */
+#endif
u32 loc_addr;
u32 rmt_addr;
u16 rmt_port;
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index e0b9227..7d3e86d 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -199,18 +199,17 @@
return IP6CB(skb)->iif;
}
-struct tcp6_request_sock {
- struct tcp_request_sock req;
+struct inet6_request_sock {
struct in6_addr loc_addr;
struct in6_addr rmt_addr;
struct sk_buff *pktopts;
int iif;
};
-static inline struct tcp6_request_sock *tcp6_rsk(const struct request_sock *sk)
-{
- return (struct tcp6_request_sock *)sk;
-}
+struct tcp6_request_sock {
+ struct tcp_request_sock tcp6rsk_tcp;
+ struct inet6_request_sock tcp6rsk_inet6;
+};
/**
* struct ipv6_pinfo - ipv6 private area
@@ -304,6 +303,28 @@
return inet_sk(__sk)->pinet6;
}
+static inline struct inet6_request_sock *
+ inet6_rsk(const struct request_sock *rsk)
+{
+ return (struct inet6_request_sock *)(((u8 *)rsk) +
+ inet_rsk(rsk)->inet6_rsk_offset);
+}
+
+static inline u32 inet6_rsk_offset(struct request_sock *rsk)
+{
+ return rsk->rsk_ops->obj_size - sizeof(struct inet6_request_sock);
+}
+
+static inline struct request_sock *inet6_reqsk_alloc(struct request_sock_ops *ops)
+{
+ struct request_sock *req = reqsk_alloc(ops);
+
+ if (req != NULL)
+ inet_rsk(req)->inet6_rsk_offset = inet6_rsk_offset(req);
+
+ return req;
+}
+
static inline struct raw6_sock *raw6_sk(const struct sock *sk)
{
return (struct raw6_sock *)sk;
@@ -361,6 +382,12 @@
return NULL;
}
+static inline struct inet6_request_sock *
+ inet6_rsk(const struct request_sock *rsk)
+{
+ return NULL;
+}
+
static inline struct raw6_sock *raw6_sk(const struct sock *sk)
{
return NULL;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 39061ed..3ce73b1 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -489,9 +489,9 @@
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
if (r->idiag_family == AF_INET6) {
ipv6_addr_copy((struct in6_addr *)r->id.idiag_src,
- &tcp6_rsk(req)->loc_addr);
+ &inet6_rsk(req)->loc_addr);
ipv6_addr_copy((struct in6_addr *)r->id.idiag_dst,
- &tcp6_rsk(req)->rmt_addr);
+ &inet6_rsk(req)->rmt_addr);
}
#endif
nlh->nlmsg_len = skb->tail - b;
@@ -553,13 +553,13 @@
entry.saddr =
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
(entry.family == AF_INET6) ?
- tcp6_rsk(req)->loc_addr.s6_addr32 :
+ inet6_rsk(req)->loc_addr.s6_addr32 :
#endif
&ireq->loc_addr;
entry.daddr =
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
(entry.family == AF_INET6) ?
- tcp6_rsk(req)->rmt_addr.s6_addr32 :
+ inet6_rsk(req)->rmt_addr.s6_addr32 :
#endif
&ireq->rmt_addr;
entry.dport = ntohs(ireq->rmt_port);
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 04ff443..fe874ee 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -61,7 +61,7 @@
lopt->nr_table_entries)];
(req = *prev) != NULL;
prev = &req->dl_next) {
- const struct tcp6_request_sock *treq = tcp6_rsk(req);
+ const struct inet6_request_sock *treq = inet6_rsk(req);
if (inet_rsk(req)->rmt_port == rport &&
req->rsk_ops->family == AF_INET6 &&
@@ -85,7 +85,7 @@
{
struct inet_connection_sock *icsk = inet_csk(sk);
struct listen_sock *lopt = icsk->icsk_accept_queue.listen_opt;
- const u32 h = inet6_synq_hash(&tcp6_rsk(req)->rmt_addr,
+ const u32 h = inet6_synq_hash(&inet6_rsk(req)->rmt_addr,
inet_rsk(req)->rmt_port,
lopt->hash_rnd, lopt->nr_table_entries);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5a10d30..c2472d7 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -656,7 +656,7 @@
static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
struct dst_entry *dst)
{
- struct tcp6_request_sock *treq = tcp6_rsk(req);
+ struct inet6_request_sock *treq = inet6_rsk(req);
struct ipv6_pinfo *np = inet6_sk(sk);
struct sk_buff * skb;
struct ipv6_txoptions *opt = NULL;
@@ -722,8 +722,8 @@
static void tcp_v6_reqsk_destructor(struct request_sock *req)
{
- if (tcp6_rsk(req)->pktopts)
- kfree_skb(tcp6_rsk(req)->pktopts);
+ if (inet6_rsk(req)->pktopts)
+ kfree_skb(inet6_rsk(req)->pktopts);
}
static struct request_sock_ops tcp6_request_sock_ops = {
@@ -956,7 +956,7 @@
*/
static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
{
- struct tcp6_request_sock *treq;
+ struct inet6_request_sock *treq;
struct ipv6_pinfo *np = inet6_sk(sk);
struct tcp_options_received tmp_opt;
struct tcp_sock *tp = tcp_sk(sk);
@@ -981,7 +981,7 @@
if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
goto drop;
- req = reqsk_alloc(&tcp6_request_sock_ops);
+ req = inet6_reqsk_alloc(&tcp6_request_sock_ops);
if (req == NULL)
goto drop;
@@ -994,7 +994,7 @@
tmp_opt.tstamp_ok = tmp_opt.saw_tstamp;
tcp_openreq_init(req, &tmp_opt, skb);
- treq = tcp6_rsk(req);
+ treq = inet6_rsk(req);
ipv6_addr_copy(&treq->rmt_addr, &skb->nh.ipv6h->saddr);
ipv6_addr_copy(&treq->loc_addr, &skb->nh.ipv6h->daddr);
TCP_ECN_create_request(req, skb->h.th);
@@ -1035,7 +1035,7 @@
struct request_sock *req,
struct dst_entry *dst)
{
- struct tcp6_request_sock *treq = tcp6_rsk(req);
+ struct inet6_request_sock *treq = inet6_rsk(req);
struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
struct tcp6_sock *newtcp6sk;
struct inet_sock *newinet;
@@ -1723,14 +1723,13 @@
static void get_openreq6(struct seq_file *seq,
struct sock *sk, struct request_sock *req, int i, int uid)
{
- struct in6_addr *dest, *src;
int ttd = req->expires - jiffies;
+ struct in6_addr *src = &inet6_rsk(req)->loc_addr;
+ struct in6_addr *dest = &inet6_rsk(req)->rmt_addr;
if (ttd < 0)
ttd = 0;
- src = &tcp6_rsk(req)->loc_addr;
- dest = &tcp6_rsk(req)->rmt_addr;
seq_printf(seq,
"%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
"%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %p\n",