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-rw-r--r--include/linux/ipv6.h46
-rw-r--r--include/net/inet6_hashtables.h5
-rw-r--r--include/net/inet_timewait_sock.h4
-rw-r--r--include/net/ip.h2
-rw-r--r--include/net/ip6_checksum.h2
-rw-r--r--include/net/sock.h9
6 files changed, 22 insertions, 46 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index b7f1f3bb346d..35f6c1b562c4 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -141,8 +141,6 @@ struct ipv6_fl_socklist;
*/
struct ipv6_pinfo {
struct in6_addr saddr;
- struct in6_addr rcv_saddr;
- struct in6_addr daddr;
struct in6_pktinfo sticky_pktinfo;
const struct in6_addr *daddr_cache;
#ifdef CONFIG_IPV6_SUBTREES
@@ -256,22 +254,10 @@ struct tcp6_sock {
extern int inet6_sk_rebuild_header(struct sock *sk);
-struct inet6_timewait_sock {
- struct in6_addr tw_v6_daddr;
- struct in6_addr tw_v6_rcv_saddr;
-};
-
struct tcp6_timewait_sock {
struct tcp_timewait_sock tcp6tw_tcp;
- struct inet6_timewait_sock tcp6tw_inet6;
};
-static inline struct inet6_timewait_sock *inet6_twsk(const struct sock *sk)
-{
- return (struct inet6_timewait_sock *)(((u8 *)sk) +
- inet_twsk(sk)->tw_ipv6_offset);
-}
-
#if IS_ENABLED(CONFIG_IPV6)
static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
{
@@ -321,21 +307,11 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
#define __ipv6_only_sock(sk) (inet6_sk(sk)->ipv6only)
#define ipv6_only_sock(sk) ((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk))
-static inline u16 inet6_tw_offset(const struct proto *prot)
-{
- return prot->twsk_prot->twsk_obj_size -
- sizeof(struct inet6_timewait_sock);
-}
-
-static inline struct in6_addr *__inet6_rcv_saddr(const struct sock *sk)
+static inline const struct in6_addr *inet6_rcv_saddr(const struct sock *sk)
{
- return likely(sk->sk_state != TCP_TIME_WAIT) ?
- &inet6_sk(sk)->rcv_saddr : &inet6_twsk(sk)->tw_v6_rcv_saddr;
-}
-
-static inline struct in6_addr *inet6_rcv_saddr(const struct sock *sk)
-{
- return sk->sk_family == AF_INET6 ? __inet6_rcv_saddr(sk) : NULL;
+ if (sk->sk_family == AF_INET6)
+ return &sk->sk_v6_rcv_saddr;
+ return NULL;
}
static inline int inet_v6_ipv6only(const struct sock *sk)
@@ -363,7 +339,6 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
return NULL;
}
-#define __inet6_rcv_saddr(__sk) NULL
#define inet6_rcv_saddr(__sk) NULL
#define tcp_twsk_ipv6only(__sk) 0
#define inet_v6_ipv6only(__sk) 0
@@ -372,19 +347,10 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
#define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif) \
(((__sk)->sk_portpair == (__ports)) && \
((__sk)->sk_family == AF_INET6) && \
- ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr)) && \
- ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr)) && \
+ ipv6_addr_equal(&(__sk)->sk_v6_daddr, (__saddr)) && \
+ ipv6_addr_equal(&(__sk)->sk_v6_rcv_saddr, (__daddr)) && \
(!(__sk)->sk_bound_dev_if || \
((__sk)->sk_bound_dev_if == (__dif))) && \
net_eq(sock_net(__sk), (__net)))
-#define INET6_TW_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif) \
- (((__sk)->sk_portpair == (__ports)) && \
- ((__sk)->sk_family == AF_INET6) && \
- ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_daddr, (__saddr)) && \
- ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_rcv_saddr, (__daddr)) && \
- (!(__sk)->sk_bound_dev_if || \
- ((__sk)->sk_bound_dev_if == (__dif))) && \
- net_eq(sock_net(__sk), (__net)))
-
#endif /* _IPV6_H */
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index f52fa88feb64..a105d1a2fc00 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -43,9 +43,8 @@ static inline unsigned int inet6_ehashfn(struct net *net,
static inline int inet6_sk_ehashfn(const struct sock *sk)
{
const struct inet_sock *inet = inet_sk(sk);
- const struct ipv6_pinfo *np = inet6_sk(sk);
- const struct in6_addr *laddr = &np->rcv_saddr;
- const struct in6_addr *faddr = &np->daddr;
+ const struct in6_addr *laddr = &sk->sk_v6_rcv_saddr;
+ const struct in6_addr *faddr = &sk->sk_v6_daddr;
const __u16 lport = inet->inet_num;
const __be16 fport = inet->inet_dport;
struct net *net = sock_net(sk);
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index de9e3ab7d43d..b647c6270eb7 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -116,7 +116,9 @@ struct inet_timewait_sock {
#define tw_prot __tw_common.skc_prot
#define tw_net __tw_common.skc_net
#define tw_daddr __tw_common.skc_daddr
+#define tw_v6_daddr __tw_common.skc_v6_daddr
#define tw_rcv_saddr __tw_common.skc_rcv_saddr
+#define tw_v6_rcv_saddr __tw_common.skc_v6_rcv_saddr
#define tw_dport __tw_common.skc_dport
#define tw_num __tw_common.skc_num
@@ -133,7 +135,7 @@ struct inet_timewait_sock {
tw_transparent : 1,
tw_pad : 6, /* 6 bits hole */
tw_tos : 8,
- tw_ipv6_offset : 16;
+ tw_pad2 : 16 /* 16 bits hole */
kmemcheck_bitfield_end(flags);
u32 tw_ttd;
struct inet_bind_bucket *tw_tb;
diff --git a/include/net/ip.h b/include/net/ip.h
index b39ebe5339ac..217bc5bfc6c6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -374,7 +374,7 @@ static __inline__ void inet_reset_saddr(struct sock *sk)
struct ipv6_pinfo *np = inet6_sk(sk);
memset(&np->saddr, 0, sizeof(np->saddr));
- memset(&np->rcv_saddr, 0, sizeof(np->rcv_saddr));
+ memset(&sk->sk_v6_rcv_saddr, 0, sizeof(sk->sk_v6_rcv_saddr));
}
#endif
}
diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h
index 7686e3f5033d..1944406949ba 100644
--- a/include/net/ip6_checksum.h
+++ b/include/net/ip6_checksum.h
@@ -70,7 +70,7 @@ static inline void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
{
struct ipv6_pinfo *np = inet6_sk(sk);
- __tcp_v6_send_check(skb, &np->saddr, &np->daddr);
+ __tcp_v6_send_check(skb, &np->saddr, &sk->sk_v6_daddr);
}
int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, int proto);
diff --git a/include/net/sock.h b/include/net/sock.h
index 3f3e48c4704d..7e50df5c71d4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -191,6 +191,12 @@ struct sock_common {
#ifdef CONFIG_NET_NS
struct net *skc_net;
#endif
+
+#if IS_ENABLED(CONFIG_IPV6)
+ struct in6_addr skc_v6_daddr;
+ struct in6_addr skc_v6_rcv_saddr;
+#endif
+
/*
* fields between dontcopy_begin/dontcopy_end
* are not copied in sock_copy()
@@ -314,6 +320,9 @@ struct sock {
#define sk_bind_node __sk_common.skc_bind_node
#define sk_prot __sk_common.skc_prot
#define sk_net __sk_common.skc_net
+#define sk_v6_daddr __sk_common.skc_v6_daddr
+#define sk_v6_rcv_saddr __sk_common.skc_v6_rcv_saddr
+
socket_lock_t sk_lock;
struct sk_buff_head sk_receive_queue;
/*
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.