diff options
| -rw-r--r-- | net/dccp/ipv4.c | 9 | ||||
| -rw-r--r-- | net/dccp/ipv6.c | 28 | ||||
| -rw-r--r-- | net/dccp/output.c | 6 |
3 files changed, 23 insertions, 20 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index b56a2fa..bc400b2 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -113,13 +113,8 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) /* OK, now commit destination to socket. */ sk_setup_caps(sk, &rt->u.dst); - dp->dccps_gar = - dp->dccps_iss = secure_dccp_sequence_number(inet->saddr, - inet->daddr, - inet->sport, - usin->sin_port); - dccp_update_gss(sk, dp->dccps_iss); - + dp->dccps_iss = secure_dccp_sequence_number(inet->saddr, inet->daddr, + inet->sport, inet->dport); inet->id = dp->dccps_iss ^ jiffies; err = dccp_connect(sk); diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index a08af75..8d6ddb6 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -76,12 +76,19 @@ static inline void dccp_v6_send_check(struct sock *sk, int unused_value, dh->dccph_checksum = dccp_v6_csum_finish(skb, &np->saddr, &np->daddr); } -static inline __u32 dccp_v6_init_sequence(const struct sk_buff *skb) +static inline __u32 secure_dccpv6_sequence_number(__u32 *saddr, __u32 *daddr, + __u16 sport, __u16 dport ) { - return secure_tcpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32, - skb->nh.ipv6h->saddr.s6_addr32, - dccp_hdr(skb)->dccph_dport, - dccp_hdr(skb)->dccph_sport ); + return secure_tcpv6_sequence_number(saddr, daddr, sport, dport); +} + +static inline __u32 dccp_v6_init_sequence(struct sk_buff *skb) +{ + return secure_dccpv6_sequence_number(skb->nh.ipv6h->daddr.s6_addr32, + skb->nh.ipv6h->saddr.s6_addr32, + dccp_hdr(skb)->dccph_dport, + dccp_hdr(skb)->dccph_sport ); + } static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, @@ -1065,13 +1072,10 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr, err = inet6_hash_connect(&dccp_death_row, sk); if (err) goto late_failure; - /* FIXME */ -#if 0 - dp->dccps_gar = secure_dccp_v6_sequence_number(np->saddr.s6_addr32, - np->daddr.s6_addr32, - inet->sport, - inet->dport); -#endif + + dp->dccps_iss = secure_dccpv6_sequence_number(np->saddr.s6_addr32, + np->daddr.s6_addr32, + inet->sport, inet->dport); err = dccp_connect(sk); if (err) goto late_failure; diff --git a/net/dccp/output.c b/net/dccp/output.c index 08ee554..0994b13 100644 --- a/net/dccp/output.c +++ b/net/dccp/output.c @@ -448,7 +448,6 @@ static inline void dccp_connect_init(struct sock *sk) dccp_sync_mss(sk, dst_mtu(dst)); - dccp_update_gss(sk, dp->dccps_iss); /* * SWL and AWL are initially adjusted so that they are not less than * the initial Sequence Numbers received and sent, respectively: @@ -457,8 +456,13 @@ static inline void dccp_connect_init(struct sock *sk) * These adjustments MUST be applied only at the beginning of the * connection. */ + dccp_update_gss(sk, dp->dccps_iss); dccp_set_seqno(&dp->dccps_awl, max48(dp->dccps_awl, dp->dccps_iss)); + /* S.GAR - greatest valid acknowledgement number received on a non-Sync; + * initialized to S.ISS (sec. 8.5) */ + dp->dccps_gar = dp->dccps_iss; + icsk->icsk_retransmits = 0; init_timer(&dp->dccps_xmit_timer); dp->dccps_xmit_timer.data = (unsigned long)sk; |