diff options
Diffstat (limited to 'net/ipv6')
-rw-r--r-- | net/ipv6/syncookies.c | 5 | ||||
-rw-r--r-- | net/ipv6/tcp_ao.c | 21 | ||||
-rw-r--r-- | net/ipv6/tcp_ipv6.c | 15 |
3 files changed, 25 insertions, 16 deletions
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index ad7a8caa7b2a..500f6ed3b8cf 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -140,6 +140,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb) struct dst_entry *dst; __u8 rcv_wscale; u32 tsoff = 0; + int l3index; if (!READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_syncookies) || !th->ack || th->rst) @@ -214,7 +215,9 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb) treq->snt_isn = cookie; treq->ts_off = 0; treq->txhash = net_tx_rndhash(); - tcp_ao_syncookie(sk, skb, treq, AF_INET6); + + l3index = l3mdev_master_ifindex_by_index(sock_net(sk), ireq->ir_iif); + tcp_ao_syncookie(sk, skb, treq, AF_INET6, l3index); if (IS_ENABLED(CONFIG_SMC)) ireq->smc_ok = 0; diff --git a/net/ipv6/tcp_ao.c b/net/ipv6/tcp_ao.c index 8b04611c9078..3c09ac26206e 100644 --- a/net/ipv6/tcp_ao.c +++ b/net/ipv6/tcp_ao.c @@ -87,30 +87,29 @@ int tcp_v6_ao_calc_key_rsk(struct tcp_ao_key *mkt, u8 *key, htonl(tcp_rsk(req)->rcv_isn)); } -struct tcp_ao_key *tcp_v6_ao_do_lookup(const struct sock *sk, - const struct in6_addr *addr, - int sndid, int rcvid) -{ - return tcp_ao_do_lookup(sk, (union tcp_ao_addr *)addr, AF_INET6, - sndid, rcvid); -} - struct tcp_ao_key *tcp_v6_ao_lookup(const struct sock *sk, struct sock *addr_sk, int sndid, int rcvid) { + int l3index = l3mdev_master_ifindex_by_index(sock_net(sk), + addr_sk->sk_bound_dev_if); struct in6_addr *addr = &addr_sk->sk_v6_daddr; - return tcp_v6_ao_do_lookup(sk, addr, sndid, rcvid); + return tcp_ao_do_lookup(sk, l3index, (union tcp_ao_addr *)addr, + AF_INET6, sndid, rcvid); } struct tcp_ao_key *tcp_v6_ao_lookup_rsk(const struct sock *sk, struct request_sock *req, int sndid, int rcvid) { - struct in6_addr *addr = &inet_rsk(req)->ir_v6_rmt_addr; + struct inet_request_sock *ireq = inet_rsk(req); + struct in6_addr *addr = &ireq->ir_v6_rmt_addr; + int l3index; - return tcp_v6_ao_do_lookup(sk, addr, sndid, rcvid); + l3index = l3mdev_master_ifindex_by_index(sock_net(sk), ireq->ir_iif); + return tcp_ao_do_lookup(sk, l3index, (union tcp_ao_addr *)addr, + AF_INET6, sndid, rcvid); } int tcp_v6_ao_hash_pseudoheader(struct tcp_sigpool *hp, diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index b5936294dba2..937a02c2e534 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -610,6 +610,7 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, int optname, union tcp_ao_addr *addr; int l3index = 0; u8 prefixlen; + bool l3flag; u8 flags; if (optlen < sizeof(cmd)) @@ -622,6 +623,7 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, int optname, return -EINVAL; flags = cmd.tcpm_flags & TCP_MD5SIG_FLAG_IFINDEX; + l3flag = cmd.tcpm_flags & TCP_MD5SIG_FLAG_IFINDEX; if (optname == TCP_MD5SIG_EXT && cmd.tcpm_flags & TCP_MD5SIG_FLAG_PREFIX) { @@ -668,7 +670,8 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, int optname, /* Don't allow keys for peers that have a matching TCP-AO key. * See the comment in tcp_ao_add_cmd() */ - if (tcp_ao_required(sk, addr, AF_INET, false)) + if (tcp_ao_required(sk, addr, AF_INET, + l3flag ? l3index : -1, false)) return -EKEYREJECTED; return tcp_md5_do_add(sk, addr, AF_INET, prefixlen, l3index, flags, @@ -680,7 +683,7 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, int optname, /* Don't allow keys for peers that have a matching TCP-AO key. * See the comment in tcp_ao_add_cmd() */ - if (tcp_ao_required(sk, addr, AF_INET6, false)) + if (tcp_ao_required(sk, addr, AF_INET6, l3flag ? l3index : -1, false)) return -EKEYREJECTED; return tcp_md5_do_add(sk, addr, AF_INET6, prefixlen, l3index, flags, @@ -1220,10 +1223,14 @@ static void tcp_v6_reqsk_send_ack(const struct sock *sk, struct sk_buff *skb, return; if (!aoh) return; - key.ao_key = tcp_v6_ao_do_lookup(sk, addr, aoh->rnext_keyid, -1); + key.ao_key = tcp_ao_do_lookup(sk, l3index, + (union tcp_ao_addr *)addr, + AF_INET6, aoh->rnext_keyid, -1); if (unlikely(!key.ao_key)) { /* Send ACK with any matching MKT for the peer */ - key.ao_key = tcp_v6_ao_do_lookup(sk, addr, -1, -1); + key.ao_key = tcp_ao_do_lookup(sk, l3index, + (union tcp_ao_addr *)addr, + AF_INET6, -1, -1); /* Matching key disappeared (user removed the key?) * let the handshake timeout. */ |