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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-29 02:03:42 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-29 02:03:42 -0400
commit3dcbbcda7c5b77c400791b26facd6593c5b176e0 (patch)
tree2e7b844c4d450cf43810a6ed0ddd5c702c245a88 /net/ipv4/tcp_input.c
parentc972398b7871d9fb58c6a317786065a7cc6ca4be (diff)
parent6fbe59b9569b2c8d5522d182263935c6c86fc40a (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (160 commits) [ETHTOOL]: Remove some entries from non-root command list. [Bluetooth]: Fix section mismatch of bt_sysfs_cleanup() [Bluetooth]: Don't update disconnect timer for incoming connections [ETHTOOL]: let mortals use ethtool [NetLabel]: add audit support for configuration changes [TCP]: Fix and simplify microsecond rtt sampling [TCP] tcp-lp: prevent chance for oops [SUNRPC]: Remove unnecessary check in net/sunrpc/svcsock.c [IPVS] bug: endianness breakage in ip_vs_ftp [IPVS]: ipvs annotations [NETFILTER]: h323 annotations [NETFILTER]: ipt annotations [NETFILTER]: NAT annotations [NETFILTER]: conntrack annotations [NETFILTER]: netfilter misc annotations [NET]: Annotate dst_ops protocol [NET]: is it Andy or Andi ?? [IPVS]: Make sure ip_vs_ftp ports are valid: module_param_array approach [IPVS]: Reverse valid ip_vs_ftp ports fix: port check approach [IrDA] stir4200: removing undocumented bits handling ...
Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index b3def0df14fb..3f884cea14ff 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -935,7 +935,7 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
935 const struct inet_connection_sock *icsk = inet_csk(sk); 935 const struct inet_connection_sock *icsk = inet_csk(sk);
936 struct tcp_sock *tp = tcp_sk(sk); 936 struct tcp_sock *tp = tcp_sk(sk);
937 unsigned char *ptr = ack_skb->h.raw + TCP_SKB_CB(ack_skb)->sacked; 937 unsigned char *ptr = ack_skb->h.raw + TCP_SKB_CB(ack_skb)->sacked;
938 struct tcp_sack_block *sp = (struct tcp_sack_block *)(ptr+2); 938 struct tcp_sack_block_wire *sp = (struct tcp_sack_block_wire *)(ptr+2);
939 int num_sacks = (ptr[1] - TCPOLEN_SACK_BASE)>>3; 939 int num_sacks = (ptr[1] - TCPOLEN_SACK_BASE)>>3;
940 int reord = tp->packets_out; 940 int reord = tp->packets_out;
941 int prior_fackets; 941 int prior_fackets;
@@ -2239,13 +2239,12 @@ static int tcp_tso_acked(struct sock *sk, struct sk_buff *skb,
2239 return acked; 2239 return acked;
2240} 2240}
2241 2241
2242static u32 tcp_usrtt(const struct sk_buff *skb) 2242static u32 tcp_usrtt(struct timeval *tv)
2243{ 2243{
2244 struct timeval tv, now; 2244 struct timeval now;
2245 2245
2246 do_gettimeofday(&now); 2246 do_gettimeofday(&now);
2247 skb_get_timestamp(skb, &tv); 2247 return (now.tv_sec - tv->tv_sec) * 1000000 + (now.tv_usec - tv->tv_usec);
2248 return (now.tv_sec - tv.tv_sec) * 1000000 + (now.tv_usec - tv.tv_usec);
2249} 2248}
2250 2249
2251/* Remove acknowledged frames from the retransmission queue. */ 2250/* Remove acknowledged frames from the retransmission queue. */
@@ -2260,6 +2259,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
2260 u32 pkts_acked = 0; 2259 u32 pkts_acked = 0;
2261 void (*rtt_sample)(struct sock *sk, u32 usrtt) 2260 void (*rtt_sample)(struct sock *sk, u32 usrtt)
2262 = icsk->icsk_ca_ops->rtt_sample; 2261 = icsk->icsk_ca_ops->rtt_sample;
2262 struct timeval tv;
2263 2263
2264 while ((skb = skb_peek(&sk->sk_write_queue)) && 2264 while ((skb = skb_peek(&sk->sk_write_queue)) &&
2265 skb != sk->sk_send_head) { 2265 skb != sk->sk_send_head) {
@@ -2308,8 +2308,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
2308 seq_rtt = -1; 2308 seq_rtt = -1;
2309 } else if (seq_rtt < 0) { 2309 } else if (seq_rtt < 0) {
2310 seq_rtt = now - scb->when; 2310 seq_rtt = now - scb->when;
2311 if (rtt_sample) 2311 skb_get_timestamp(skb, &tv);
2312 (*rtt_sample)(sk, tcp_usrtt(skb));
2313 } 2312 }
2314 if (sacked & TCPCB_SACKED_ACKED) 2313 if (sacked & TCPCB_SACKED_ACKED)
2315 tp->sacked_out -= tcp_skb_pcount(skb); 2314 tp->sacked_out -= tcp_skb_pcount(skb);
@@ -2322,8 +2321,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
2322 } 2321 }
2323 } else if (seq_rtt < 0) { 2322 } else if (seq_rtt < 0) {
2324 seq_rtt = now - scb->when; 2323 seq_rtt = now - scb->when;
2325 if (rtt_sample) 2324 skb_get_timestamp(skb, &tv);
2326 (*rtt_sample)(sk, tcp_usrtt(skb));
2327 } 2325 }
2328 tcp_dec_pcount_approx(&tp->fackets_out, skb); 2326 tcp_dec_pcount_approx(&tp->fackets_out, skb);
2329 tcp_packets_out_dec(tp, skb); 2327 tcp_packets_out_dec(tp, skb);
@@ -2335,6 +2333,8 @@ static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p)
2335 if (acked&FLAG_ACKED) { 2333 if (acked&FLAG_ACKED) {
2336 tcp_ack_update_rtt(sk, acked, seq_rtt); 2334 tcp_ack_update_rtt(sk, acked, seq_rtt);
2337 tcp_ack_packets_out(sk, tp); 2335 tcp_ack_packets_out(sk, tp);
2336 if (rtt_sample && !(acked & FLAG_RETRANS_DATA_ACKED))
2337 (*rtt_sample)(sk, tcp_usrtt(&tv));
2338 2338
2339 if (icsk->icsk_ca_ops->pkts_acked) 2339 if (icsk->icsk_ca_ops->pkts_acked)
2340 icsk->icsk_ca_ops->pkts_acked(sk, pkts_acked); 2340 icsk->icsk_ca_ops->pkts_acked(sk, pkts_acked);
@@ -2629,7 +2629,7 @@ void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx,
2629 switch(opcode) { 2629 switch(opcode) {
2630 case TCPOPT_MSS: 2630 case TCPOPT_MSS:
2631 if(opsize==TCPOLEN_MSS && th->syn && !estab) { 2631 if(opsize==TCPOLEN_MSS && th->syn && !estab) {
2632 u16 in_mss = ntohs(get_unaligned((__u16 *)ptr)); 2632 u16 in_mss = ntohs(get_unaligned((__be16 *)ptr));
2633 if (in_mss) { 2633 if (in_mss) {
2634 if (opt_rx->user_mss && opt_rx->user_mss < in_mss) 2634 if (opt_rx->user_mss && opt_rx->user_mss < in_mss)
2635 in_mss = opt_rx->user_mss; 2635 in_mss = opt_rx->user_mss;
@@ -2657,8 +2657,8 @@ void tcp_parse_options(struct sk_buff *skb, struct tcp_options_received *opt_rx,
2657 if ((estab && opt_rx->tstamp_ok) || 2657 if ((estab && opt_rx->tstamp_ok) ||
2658 (!estab && sysctl_tcp_timestamps)) { 2658 (!estab && sysctl_tcp_timestamps)) {
2659 opt_rx->saw_tstamp = 1; 2659 opt_rx->saw_tstamp = 1;
2660 opt_rx->rcv_tsval = ntohl(get_unaligned((__u32 *)ptr)); 2660 opt_rx->rcv_tsval = ntohl(get_unaligned((__be32 *)ptr));
2661 opt_rx->rcv_tsecr = ntohl(get_unaligned((__u32 *)(ptr+4))); 2661 opt_rx->rcv_tsecr = ntohl(get_unaligned((__be32 *)(ptr+4)));
2662 } 2662 }
2663 } 2663 }
2664 break; 2664 break;
@@ -2695,8 +2695,8 @@ static int tcp_fast_parse_options(struct sk_buff *skb, struct tcphdr *th,
2695 return 0; 2695 return 0;
2696 } else if (tp->rx_opt.tstamp_ok && 2696 } else if (tp->rx_opt.tstamp_ok &&
2697 th->doff == (sizeof(struct tcphdr)>>2)+(TCPOLEN_TSTAMP_ALIGNED>>2)) { 2697 th->doff == (sizeof(struct tcphdr)>>2)+(TCPOLEN_TSTAMP_ALIGNED>>2)) {
2698 __u32 *ptr = (__u32 *)(th + 1); 2698 __be32 *ptr = (__be32 *)(th + 1);
2699 if (*ptr == ntohl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) 2699 if (*ptr == htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
2700 | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) { 2700 | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) {
2701 tp->rx_opt.saw_tstamp = 1; 2701 tp->rx_opt.saw_tstamp = 1;
2702 ++ptr; 2702 ++ptr;
@@ -3911,10 +3911,10 @@ int tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
3911 3911
3912 /* Check timestamp */ 3912 /* Check timestamp */
3913 if (tcp_header_len == sizeof(struct tcphdr) + TCPOLEN_TSTAMP_ALIGNED) { 3913 if (tcp_header_len == sizeof(struct tcphdr) + TCPOLEN_TSTAMP_ALIGNED) {
3914 __u32 *ptr = (__u32 *)(th + 1); 3914 __be32 *ptr = (__be32 *)(th + 1);
3915 3915
3916 /* No? Slow path! */ 3916 /* No? Slow path! */
3917 if (*ptr != ntohl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) 3917 if (*ptr != htonl((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16)
3918 | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)) 3918 | (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP))
3919 goto slow_path; 3919 goto slow_path;
3920 3920