diff options
Diffstat (limited to 'src/vnet/tcp/tcp.c')
| -rw-r--r-- | src/vnet/tcp/tcp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c index 407ba9576a8..161b8ef25a2 100644 --- a/src/vnet/tcp/tcp.c +++ b/src/vnet/tcp/tcp.c @@ -657,9 +657,10 @@ tcp_init_mss (tcp_connection_t * tc) /* We should have enough space for 40 bytes of options */ ASSERT (tc->snd_mss > 45); - /* If we use timestamp option, account for it */ + /* If we use timestamp option, account for it and make sure + * the options are 4-byte aligned */ if (tcp_opts_tstamp (&tc->rcv_opts)) - tc->snd_mss -= TCP_OPTION_LEN_TIMESTAMP; + tc->snd_mss -= TCP_OPTION_LEN_TIMESTAMP + 2 /* alignment */; } /** |