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authorFilip Varga <fivarga@cisco.com>2020-08-04 18:06:06 +0200
committerOle Trøan <otroan@employees.org>2020-08-17 07:53:18 +0000
commit00dd39044e64b4a7a33d204ef7d19aac819d71f5 (patch)
tree0a065cc49ffe1458c81c96ebffda3f75a6e09128 /src/plugins/nat/nat44_cli.c
parent17ec577f7b3b092e09d95451317957415f4baf4f (diff)
nat: sessions get expired when fib table removed
fib table removal would leave lingering sessions in vpp this patch is aimed at solving this issue by grouping sessions by source and destionation fib. if one of the fibs gets removed this grouping is tagged as expired and session won't be passed to non existing fib table Ticket: VPPSUPP-93 Type: improvement Change-Id: I45b1205a8b58d91f174e6feb862554ec2f6cffad Signed-off-by: Filip Varga <fivarga@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat44_cli.c')
-rw-r--r--src/plugins/nat/nat44_cli.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/plugins/nat/nat44_cli.c b/src/plugins/nat/nat44_cli.c
index 64529af1d4b..ad2e9b7ae07 100644
--- a/src/plugins/nat/nat44_cli.c
+++ b/src/plugins/nat/nat44_cli.c
@@ -1842,9 +1842,80 @@ nat_show_timeouts_command_fn (vlib_main_t * vm,
return 0;
}
+static clib_error_t *
+nat44_debug_fib_expire_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ clib_error_t *error = 0;
+ u32 fib = ~0;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "%u", &fib))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+ expire_per_vrf_sessions (fib);
+done:
+ unformat_free (line_input);
+ return error;
+}
+
+static clib_error_t *
+nat44_debug_fib_registration_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ snat_main_t *sm = &snat_main;
+ snat_main_per_thread_data_t *tsm;
+ per_vrf_sessions_t *per_vrf_sessions;
+
+ vlib_cli_output (vm, "VRF registration debug:");
+ vec_foreach (tsm, sm->per_thread_data)
+ {
+ vlib_cli_output (vm, "thread %u:", tsm->thread_index);
+ vec_foreach (per_vrf_sessions, tsm->per_vrf_sessions_vec)
+ {
+ vlib_cli_output (vm, "rx fib %u tx fib %u ses count %u %s",
+ per_vrf_sessions->rx_fib_index,
+ per_vrf_sessions->tx_fib_index,
+ per_vrf_sessions->ses_count,
+ per_vrf_sessions->expired ? "expired" : "");
+ }
+ }
+ return 0;
+}
+
/* *INDENT-OFF* */
/*?
+?*/
+VLIB_CLI_COMMAND (nat44_debug_fib_expire_command, static) = {
+ .path = "debug nat44 fib expire",
+ .short_help = "debug nat44 fib expire <fib-index>",
+ .function = nat44_debug_fib_expire_command_fn,
+};
+
+/*?
+?*/
+VLIB_CLI_COMMAND (nat44_debug_fib_registration_command, static) = {
+ .path = "debug nat44 fib registration",
+ .short_help = "debug nat44 fib registration",
+ .function = nat44_debug_fib_registration_command_fn,
+};
+
+/*?
* @cliexpar
* @cliexstart{set snat workers}
* Set NAT workers if 2 or more workers available, use: