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[IPV6]: Introduce inet6_rsk()

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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>
This commit is contained in:
Arnaldo Carvalho de Melo 2005-12-13 23:15:40 -08:00 committed by David S. Miller
parent 8129765ac0
commit ca304b6104
5 changed files with 52 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/ip.h
View File

@ -110,6 +110,10 @@ struct ip_options {
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;

39
include/linux/ipv6.h
View File

@ -199,18 +199,17 @@ static inline int inet6_iif(const struct sk_buff *skb)
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 @@ static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
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 @@ static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
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;

8
net/ipv4/inet_diag.c
View File

@ -489,9 +489,9 @@ static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
#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 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
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);

4
net/ipv6/inet6_connection_sock.c
View File

@ -61,7 +61,7 @@ struct request_sock *inet6_csk_search_req(const struct sock *sk,
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 @@ void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
{
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);

19
net/ipv6/tcp_ipv6.c
View File

@ -656,7 +656,7 @@ out:
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 @@ done:
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 struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
*/
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 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
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 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
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 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
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 int tcp_v6_destroy_sock(struct sock *sk)
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",