- return 0;
-}
-
-int
-vlib_pcap_dispatch_trace_configure (vlib_pcap_dispatch_trace_args_t * a)
-{
- vlib_main_t *vm = vlib_get_main ();
- pcap_main_t *pm = &vm->dispatch_pcap_main;
- vlib_trace_main_t *tm;
- vlib_trace_node_t *tn;
-
- if (a->status)
- {
- if (vm->dispatch_pcap_enable)
- {
- int i;
- vlib_cli_output
- (vm, "pcap dispatch capture enabled: %d of %d pkts...",
- pm->n_packets_captured, pm->n_packets_to_capture);
- vlib_cli_output (vm, "capture to file %s", pm->file_name);
-
- for (i = 0; i < vec_len (vm->dispatch_buffer_trace_nodes); i++)
- {
- vlib_cli_output (vm,
- "Buffer trace of %d pkts from %U enabled...",
- a->buffer_traces_to_capture,
- format_vlib_node_name, vm,
- vm->dispatch_buffer_trace_nodes[i]);
- }
- }
- else
- vlib_cli_output (vm, "pcap dispatch capture disabled");
- return 0;
- }
-
- /* Consistency checks */
-
- /* Enable w/ capture already enabled not allowed */
- if (vm->dispatch_pcap_enable && a->enable)
- return -7; /* VNET_API_ERROR_INVALID_VALUE */
-
- /* Disable capture with capture already disabled, not interesting */
- if (vm->dispatch_pcap_enable == 0 && a->enable == 0)
- return -81; /* VNET_API_ERROR_VALUE_EXIST */
-
- /* Change number of packets to capture while capturing */
- if (vm->dispatch_pcap_enable && a->enable
- && (pm->n_packets_to_capture != a->packets_to_capture))
- return -8; /* VNET_API_ERROR_INVALID_VALUE_2 */
-
- /* Independent of enable/disable, to allow buffer trace multi nodes */
- if (a->buffer_trace_node_index != ~0)
- {
- /* *INDENT-OFF* */
- foreach_vlib_main ((
- {
- tm = &this_vlib_main->trace_main;
- tm->verbose = 0; /* not sure this ever did anything... */
- vec_validate (tm->nodes, a->buffer_trace_node_index);
- tn = tm->nodes + a->buffer_trace_node_index;
- tn->limit += a->buffer_traces_to_capture;
- if (a->post_mortem)
- {
- tm->filter_flag = FILTER_FLAG_POST_MORTEM;
- tm->filter_count = ~0;
- }
- tm->trace_enable = 1;
- }));
- /* *INDENT-ON* */
- vec_add1 (vm->dispatch_buffer_trace_nodes, a->buffer_trace_node_index);
- }
-
- if (a->enable)
- {
- /* Clean up from previous run, if any */
- vec_free (pm->file_name);
- vec_free (pm->pcap_data);
- memset (pm, 0, sizeof (*pm));
-
- vec_validate_aligned (vnet_trace_placeholder, 2048,
- CLIB_CACHE_LINE_BYTES);
- if (pm->lock == 0)
- clib_spinlock_init (&(pm->lock));
-
- if (a->filename == 0)
- a->filename = format (0, "/tmp/dispatch.pcap%c", 0);
-
- pm->file_name = (char *) a->filename;
- pm->n_packets_captured = 0;
- pm->packet_type = PCAP_PACKET_TYPE_vpp;
- pm->n_packets_to_capture = a->packets_to_capture;
- vm->dispatch_pcap_postmortem = a->post_mortem;
- /* *INDENT-OFF* */
- foreach_vlib_main (({ this_vlib_main->dispatch_pcap_enable = 1;}));
- /* *INDENT-ON* */
- }
- else
- {
- /* *INDENT-OFF* */
- foreach_vlib_main ((
- {
- this_vlib_main->dispatch_pcap_enable = 0;
- this_vlib_main->dispatch_pcap_postmortem = 0;
- tm = &this_vlib_main->trace_main;
- tm->filter_flag = 0;
- tm->filter_count = 0;
- tm->trace_enable = 0;
- }));
- /* *INDENT-ON* */
- vec_reset_length (vm->dispatch_buffer_trace_nodes);
- if (pm->n_packets_captured)
- {
- clib_error_t *error;
- pm->n_packets_to_capture = pm->n_packets_captured;
- vlib_cli_output (vm, "Write %d packets to %s, and stop capture...",
- pm->n_packets_captured, pm->file_name);
- error = pcap_write (pm);
- if (pm->flags & PCAP_MAIN_INIT_DONE)
- pcap_close (pm);
- /* Report I/O errors... */
- if (error)
- {
- clib_error_report (error);
- return -11; /* VNET_API_ERROR_SYSCALL_ERROR_1 */
- }
- return 0;
- }
- else
- return -6; /* VNET_API_ERROR_NO_SUCH_ENTRY */
- }
-
- return 0;
-}
-
-static clib_error_t *
-dispatch_trace_command_fn (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- unformat_input_t _line_input, *line_input = &_line_input;
- vlib_pcap_dispatch_trace_args_t _a, *a = &_a;
- u8 *filename = 0;
- u32 max = 1000;
- int rv;
- int enable = 0;
- int status = 0;
- int post_mortem = 0;
- u32 node_index = ~0, buffer_traces_to_capture = 100;
-
- /* 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, "on %=", &enable, 1))
- ;
- else if (unformat (line_input, "enable %=", &enable, 1))
- ;
- else if (unformat (line_input, "off %=", &enable, 0))
- ;
- else if (unformat (line_input, "disable %=", &enable, 0))
- ;
- else if (unformat (line_input, "max %d", &max))
- ;
- else if (unformat (line_input, "packets-to-capture %d", &max))
- ;
- else if (unformat (line_input, "file %U", unformat_vlib_tmpfile,
- &filename))
- ;
- else if (unformat (line_input, "status %=", &status, 1))
- ;
- else if (unformat (line_input, "buffer-trace %U %d",
- unformat_vlib_node, vm, &node_index,
- &buffer_traces_to_capture))
- ;
- else if (unformat (line_input, "post-mortem %=", &post_mortem, 1))
- ;
- else
- {
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, line_input);
- }
- }
-
- unformat_free (line_input);
-
- /* no need for memset (a, 0, sizeof (*a)), set all fields here. */
- a->filename = filename;
- a->enable = enable;
- a->status = status;
- a->packets_to_capture = max;
- a->buffer_trace_node_index = node_index;
- a->buffer_traces_to_capture = buffer_traces_to_capture;
- a->post_mortem = post_mortem;
-
- rv = vlib_pcap_dispatch_trace_configure (a);
-
- switch (rv)
- {
- case 0:
- break;
-
- case -7:
- return clib_error_return (0, "dispatch trace already enabled...");
-
- case -81:
- return clib_error_return (0, "dispatch trace already disabled...");
-
- case -8:
- return clib_error_return
- (0, "can't change number of records to capture while tracing...");
-
- case -11:
- return clib_error_return (0, "I/O writing trace capture...");
-
- case -6:
- return clib_error_return (0, "No packets captured...");
-
- default:
- vlib_cli_output (vm, "WARNING: trace configure returned %d", rv);
- break;
- }
- return 0;