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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2006-09-27 18:32:28 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2006-09-28 18:02:04 -0700 |
| commit | 269bd27e66037a7932cee6d6aa7ef7defd0bfe38 (patch) | |
| tree | 92b1694b00ee61777bd6976d32cb283effdf9172 | |
| parent | [IPV4]: TCP headers annotated (diff) | |
| download | linux-dev-269bd27e66037a7932cee6d6aa7ef7defd0bfe38.tar.xz linux-dev-269bd27e66037a7932cee6d6aa7ef7defd0bfe38.zip | |
[TCP]: struct tcp_sack_block annotations
Some of the instances of tcp_sack_block are host-endian, some - net-endian.
Define struct tcp_sack_block_wire identical to struct tcp_sack_block
with u32 replaced with __be32; annotate uses of tcp_sack_block replacing
net-endian ones with tcp_sack_block_wire. Change is obviously safe since
for cc(1) __be32 is typedefed to u32.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/tcp.h | 5 | ||||
| -rw-r--r-- | net/ipv4/netfilter/ip_nat_helper.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_input.c | 2 |
3 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 543f06371840..9632aa866de4 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -166,6 +166,11 @@ struct tcp_info #include <net/inet_timewait_sock.h> /* This defines a selective acknowledgement block. */ +struct tcp_sack_block_wire { + __be32 start_seq; + __be32 end_seq; +}; + struct tcp_sack_block { __u32 start_seq; __u32 end_seq; diff --git a/net/ipv4/netfilter/ip_nat_helper.c b/net/ipv4/netfilter/ip_nat_helper.c index 7f6a75984f6c..e9c5187ea5b2 100644 --- a/net/ipv4/netfilter/ip_nat_helper.c +++ b/net/ipv4/netfilter/ip_nat_helper.c @@ -283,7 +283,7 @@ sack_adjust(struct sk_buff *skb, struct ip_nat_seq *natseq) { while (sackoff < sackend) { - struct tcp_sack_block *sack; + struct tcp_sack_block_wire *sack; u_int32_t new_start_seq, new_end_seq; sack = (void *)skb->data + sackoff; diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index b3def0df14fb..46984ffd73cd 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_ const struct inet_connection_sock *icsk = inet_csk(sk); struct tcp_sock *tp = tcp_sk(sk); unsigned char *ptr = ack_skb->h.raw + TCP_SKB_CB(ack_skb)->sacked; - struct tcp_sack_block *sp = (struct tcp_sack_block *)(ptr+2); + struct tcp_sack_block_wire *sp = (struct tcp_sack_block_wire *)(ptr+2); int num_sacks = (ptr[1] - TCPOLEN_SACK_BASE)>>3; int reord = tp->packets_out; int prior_fackets; |