From 98301bd5603ce691d809759ec444641953cb5caa Mon Sep 17 00:00:00 2001 From: Filip Varga Date: Thu, 13 Feb 2020 14:52:18 +0100 Subject: nat: user deletion function & extra metrics Type: improvement Signed-off-by: Filip Varga Change-Id: Ia5dbfe864c18e953ff49147a9a4684d2ca14b96e --- src/plugins/nat/nat44_cli.c | 166 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) (limited to 'src/plugins/nat/nat44_cli.c') diff --git a/src/plugins/nat/nat44_cli.c b/src/plugins/nat/nat44_cli.c index 659dbb2247e..11e87092ae7 100644 --- a/src/plugins/nat/nat44_cli.c +++ b/src/plugins/nat/nat44_cli.c @@ -639,6 +639,101 @@ done: return error; } +static clib_error_t * +nat44_show_summary_command_fn (vlib_main_t * vm, unformat_input_t * input, + vlib_cli_command_t * cmd) +{ + snat_main_per_thread_data_t *tsm; + snat_main_t *sm = &snat_main; + snat_address_t *a; + snat_session_t *s; + u32 free_ports, free_ports_addr; + + if (sm->deterministic) + return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR); + + if (sm->endpoint_dependent) + vlib_cli_output (vm, "mode: endpoint-depenent"); + + // print timeouts + vlib_cli_output (vm, "icmp timeout: %u", sm->icmp_timeout); + vlib_cli_output (vm, "udp timeout: %u", sm->udp_timeout); + + vlib_cli_output (vm, "tcp established timeout: %u", + sm->tcp_established_timeout); + vlib_cli_output (vm, "tcp transitory timeout: %u", + sm->tcp_transitory_timeout); + + // print session configuration values + vlib_cli_output (vm, "max translations: %u", sm->max_translations); + vlib_cli_output (vm, "max translations per user: %u", + sm->max_translations_per_user); + + // do we need also twice-nat addresses ?? + if (vec_len (sm->addresses)) + { + free_ports = 0; + /* *INDENT-OFF* */ + vec_foreach (a, sm->addresses) + { + free_ports_addr = sm->port_per_thread; + + #define _(N, i, n, s) \ + free_ports_addr -= a->busy_##n##_ports; + foreach_snat_protocol + #undef _ + + vlib_cli_output (vm, "addr: %U free ports: %u out of: %u", + format_ip4_address, &a->addr, free_ports_addr, sm->port_per_thread); + + free_ports += free_ports_addr; + } + /* *INDENT-ON* */ + vlib_cli_output (vm, "free ports overall: %u out of: %u", + free_ports, + vec_len (sm->addresses) * sm->port_per_thread); + } + + u32 count = 0; + u32 transitory = 0; + u32 established = 0; + + if (sm->num_workers > 1) + { + /* *INDENT-OFF* */ + vec_foreach (tsm, sm->per_thread_data) + { + count += vec_len (tsm->sessions); + pool_foreach (s, tsm->sessions, + ({ + if (s->state) + transitory++; + else + established++; + })); + } + /* *INDENT-ON* */ + } + else + { + tsm = vec_elt_at_index (sm->per_thread_data, sm->num_workers); + /* *INDENT-OFF* */ + pool_foreach (s, tsm->sessions, + ({ + if (s->state) + transitory++; + else + established++; + })); + /* *INDENT-ON* */ + count = vec_len (tsm->sessions); + } + vlib_cli_output (vm, "established sessions: %u", established); + vlib_cli_output (vm, "transitory sessions: %u", transitory); + vlib_cli_output (vm, "sessions: %u", count); + return 0; +} + static clib_error_t * nat44_show_addresses_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) @@ -1376,6 +1471,51 @@ nat44_show_sessions_command_fn (vlib_main_t * vm, unformat_input_t * input, return 0; } +static clib_error_t * +nat44_del_user_command_fn (vlib_main_t * vm, + unformat_input_t * input, vlib_cli_command_t * cmd) +{ + snat_main_t *sm = &snat_main; + unformat_input_t _line_input, *line_input = &_line_input; + clib_error_t *error = 0; + ip4_address_t addr; + u32 fib_index = 0; + int rv; + + if (sm->deterministic) + return clib_error_return (0, UNSUPPORTED_IN_DET_MODE_STR); + + /* 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", unformat_ip4_address, &addr)) + ; + else if (unformat (line_input, "fib %u", &fib_index)) + ; + else + { + error = clib_error_return (0, "unknown input '%U'", + format_unformat_error, line_input); + goto done; + } + } + + rv = nat44_user_del (&addr, fib_index); + + if (!rv) + { + error = clib_error_return (0, "nat44_user_del returned %d", rv); + } + +done: + unformat_free (line_input); + + return error; +} + static clib_error_t * nat44_del_session_command_fn (vlib_main_t * vm, unformat_input_t * input, @@ -2178,6 +2318,19 @@ VLIB_CLI_COMMAND (add_address_command, static) = { .function = add_address_command_fn, }; +/*? + * @cliexpar + * @cliexstart{show nat44 summary} + * Show NAT44 summary + * vpp# show nat44 summary + * @cliexend +?*/ +VLIB_CLI_COMMAND (nat44_show_summary_command, static) = { + .path = "show nat44 summary", + .short_help = "show nat44 summary", + .function = nat44_show_summary_command_fn, +}; + /*? * @cliexpar * @cliexstart{show nat44 addresses} @@ -2386,6 +2539,19 @@ VLIB_CLI_COMMAND (nat44_show_sessions_command, static) = { .function = nat44_show_sessions_command_fn, }; +/*? + * @cliexpar + * @cliexstart{nat44 del user} + * To delete all NAT44 user sessions: + * vpp# nat44 del user 10.0.0.3 + * @cliexend +?*/ +VLIB_CLI_COMMAND (nat44_del_user_command, static) = { + .path = "nat44 del user", + .short_help = "nat44 del user [fib ]", + .function = nat44_del_user_command_fn, +}; + /*? * @cliexpar * @cliexstart{nat44 del session} -- cgit 1.2.3-korg