diff options
Diffstat (limited to 'tcp_internal.h')
| -rw-r--r-- | tcp_internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tcp_internal.h b/tcp_internal.h index 518913b..1d335be 100644 --- a/tcp_internal.h +++ b/tcp_internal.h @@ -38,6 +38,8 @@ /* Flags for internal usage */ #define DUP_ACK (1 << 5) +#define KEEPALIVE (1 << 6) + #define OPT_EOL 0 #define OPT_NOP 1 #define OPT_MSS 2 |