diff options
| author |   Pierre Pfister <ppfister@cisco.com> | 2017-09-20 08:48:36 +0200 |
|---|---|---|
| committer |   Dave Wallace <dwallacelf@gmail.com> | 2017-09-20 13:43:36 +0000 |
| commit | 7fe51f3e3e80ed6ffe989df1c6963527166afc25 (patch) | |
| tree | 4b007227cfb4949066901cbaca6a1158e235303a /src/vnet/tcp/tcp.c | |
| parent | 440751b91804947a7c9b533570531cac79629016 (diff) | |
tcp: add option to punt traffic
Until now, if the stack didn't find a connection for a packet, it sent
back a reset. With the punt option enabled, packets are now enqueued to
error-punt where they can be handed off to the host os.
Change-Id: I12dea8694b8bd24c92b0d601412928aa7b8046cb
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Pierre Pfister <ppfister@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.c')
| -rw-r--r-- | src/vnet/tcp/tcp.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c index f779428f..f457ef7e 100644 --- a/src/vnet/tcp/tcp.c +++ b/src/vnet/tcp/tcp.c @@ -1398,6 +1398,16 @@ vnet_tcp_enable_disable (vlib_main_t * vm, u8 is_en) return 0; } +void +tcp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add) +{ + tcp_main_t *tm = &tcp_main; + if (is_ip4) + tm->punt_unknown4 = is_add; + else + tm->punt_unknown6 = is_add; +} + clib_error_t * tcp_init (vlib_main_t * vm) { @@ -1893,6 +1903,29 @@ VLIB_CLI_COMMAND (tcp_replay_scoreboard_command, static) = }; /* *INDENT-ON* */ +static clib_error_t * +show_tcp_punt_fn (vlib_main_t * vm, unformat_input_t * input, + vlib_cli_command_t * cmd_arg) +{ + tcp_main_t *tm = vnet_get_tcp_main (); + if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + return clib_error_return (0, "unknown input `%U'", format_unformat_error, + input); + vlib_cli_output (vm, "IPv4 TCP punt: %s", + tm->punt_unknown4 ? "enabled" : "disabled"); + vlib_cli_output (vm, "IPv6 TCP punt: %s", + tm->punt_unknown6 ? "enabled" : "disabled"); + return 0; +} +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (show_tcp_punt_command, static) = +{ + .path = "show tcp punt", + .short_help = "show tcp punt", + .function = show_tcp_punt_fn, +}; +/* *INDENT-ON* */ + /* * fd.io coding-style-patch-verification: ON * |