}
#endif
-static inline clib_error_t *
-pcap_trace_command_internal (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd, int rx_tx)
-{
-#define PCAP_DEF_PKT_TO_CAPTURE (100)
-
- unformat_input_t _line_input, *line_input = &_line_input;
- dpdk_main_t *dm = &dpdk_main;
- u8 *filename;
- u8 *chroot_filename = 0;
- u32 max = 0;
- int enabled = 0;
- int errorFlag = 0;
- clib_error_t *error = 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, "on"))
- {
- if (dm->pcap[rx_tx].pcap_enable == 0)
- {
- enabled = 1;
- }
- else
- {
- vlib_cli_output (vm, "pcap tx capture already on...");
- errorFlag = 1;
- break;
- }
- }
- else if (unformat (line_input, "off"))
- {
- if (dm->pcap[rx_tx].pcap_enable)
- {
- vlib_cli_output
- (vm, "captured %d pkts...",
- dm->pcap[rx_tx].pcap_main.n_packets_captured);
- if (dm->pcap[rx_tx].pcap_main.n_packets_captured)
- {
- dm->pcap[rx_tx].pcap_main.n_packets_to_capture =
- dm->pcap[rx_tx].pcap_main.n_packets_captured;
- error = pcap_write (&dm->pcap[rx_tx].pcap_main);
- if (error)
- clib_error_report (error);
- else
- vlib_cli_output (vm, "saved to %s...",
- dm->pcap[rx_tx].pcap_main.file_name);
- }
-
- dm->pcap[rx_tx].pcap_enable = 0;
- }
- else
- {
- vlib_cli_output (vm, "pcap tx capture already off...");
- errorFlag = 1;
- break;
- }
- }
- else if (unformat (line_input, "max %d", &max))
- {
- if (dm->pcap[rx_tx].pcap_enable)
- {
- vlib_cli_output
- (vm,
- "can't change max value while pcap tx capture active...");
- errorFlag = 1;
- break;
- }
- dm->pcap[rx_tx].pcap_main.n_packets_to_capture = max;
- }
- else if (unformat (line_input, "intfc %U",
- unformat_vnet_sw_interface, dm->vnet_main,
- &dm->pcap[rx_tx].pcap_sw_if_index))
- ;
-
- else if (unformat (line_input, "intfc any"))
- {
- dm->pcap[rx_tx].pcap_sw_if_index = 0;
- }
- else if (unformat (line_input, "file %s", &filename))
- {
- if (dm->pcap[rx_tx].pcap_enable)
- {
- vlib_cli_output
- (vm, "can't change file while pcap tx capture active...");
- errorFlag = 1;
- break;
- }
-
- /* Brain-police user path input */
- if (strstr ((char *) filename, "..")
- || index ((char *) filename, '/'))
- {
- vlib_cli_output (vm, "illegal characters in filename '%s'",
- filename);
- vlib_cli_output (vm, "Hint: .. and / are not allowed.");
- vec_free (filename);
- errorFlag = 1;
- break;
- }
-
- chroot_filename = format (0, "/tmp/%s%c", filename, 0);
- vec_free (filename);
- }
- else if (unformat (line_input, "status"))
- {
- if (dm->pcap[rx_tx].pcap_sw_if_index == 0)
- {
- vlib_cli_output
- (vm, "max is %d for any interface to file %s",
- dm->pcap[rx_tx].pcap_main.n_packets_to_capture ?
- dm->pcap[rx_tx].pcap_main.n_packets_to_capture
- : PCAP_DEF_PKT_TO_CAPTURE,
- dm->pcap[rx_tx].pcap_main.file_name ?
- (u8 *) dm->pcap[rx_tx].pcap_main.file_name :
- (u8 *) "/tmp/vpe.pcap");
- }
- else
- {
- vlib_cli_output (vm, "max is %d for interface %U to file %s",
- dm->pcap[rx_tx].pcap_main.n_packets_to_capture
- ? dm->pcap[rx_tx].
- pcap_main.n_packets_to_capture :
- PCAP_DEF_PKT_TO_CAPTURE,
- format_vnet_sw_if_index_name, dm->vnet_main,
- dm->pcap_sw_if_index,
- dm->pcap[rx_tx].
- pcap_main.file_name ? (u8 *) dm->pcap[rx_tx].
- pcap_main.file_name : (u8 *) "/tmp/vpe.pcap");
- }
-
- if (dm->pcap[rx_tx].pcap_enable == 0)
- {
- vlib_cli_output (vm, "pcap %s capture is off...",
- (rx_tx == VLIB_RX) ? "rx" : "tx");
- }
- else
- {
- vlib_cli_output (vm, "pcap %s capture is on: %d of %d pkts...",
- (rx_tx == VLIB_RX) ? "rx" : "tx",
- dm->pcap[rx_tx].pcap_main.n_packets_captured,
- dm->pcap[rx_tx].
- pcap_main.n_packets_to_capture);
- }
- break;
- }
-
- else
- {
- error = clib_error_return (0, "unknown input `%U'",
- format_unformat_error, line_input);
- errorFlag = 1;
- break;
- }
- }
- unformat_free (line_input);
-
-
- if (errorFlag == 0)
- {
- /* Since no error, save configured values. */
- if (chroot_filename)
- {
- if (dm->pcap[rx_tx].pcap_main.file_name)
- vec_free (dm->pcap[rx_tx].pcap_main.file_name);
- vec_add1 (chroot_filename, 0);
- dm->pcap[rx_tx].pcap_main.file_name = (char *) chroot_filename;
- }
-
- if (max)
- dm->pcap[rx_tx].pcap_main.n_packets_to_capture = max;
-
- if (enabled)
- {
- if (dm->pcap[rx_tx].pcap_main.file_name == 0)
- dm->pcap[rx_tx].pcap_main.file_name
- = (char *) format (0, "/tmp/vpe.pcap%c", 0);
-
- dm->pcap[rx_tx].pcap_main.n_packets_captured = 0;
- dm->pcap[rx_tx].pcap_main.packet_type = PCAP_PACKET_TYPE_ethernet;
- if (dm->pcap[rx_tx].pcap_main.lock == 0)
- clib_spinlock_init (&(dm->pcap[rx_tx].pcap_main.lock));
- dm->pcap[rx_tx].pcap_enable = 1;
- vlib_cli_output (vm, "pcap %s capture on...",
- rx_tx == VLIB_RX ? "rx" : "tx");
- }
- }
- else if (chroot_filename)
- vec_free (chroot_filename);
-
- return error;
-}
-
-static clib_error_t *
-pcap_rx_trace_command_fn (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- return pcap_trace_command_internal (vm, input, cmd, VLIB_RX);
-}
-
-static clib_error_t *
-pcap_tx_trace_command_fn (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- return pcap_trace_command_internal (vm, input, cmd, VLIB_TX);
-}
-
-
-/*?
- * This command is used to start or stop a packet capture, or show
- * the status of packet capture. Note that both "pcap rx trace" and
- * "pcap tx trace" are implemented. The command syntax is identical,
- * simply substitute rx for tx as needed.
- *
- * This command has the following optional parameters:
- *
- * - <b>on|off</b> - Used to start or stop a packet capture.
- *
- * - <b>max <nn></b> - Depth of local buffer. Once '<em>nn</em>' number
- * of packets have been received, buffer is flushed to file. Once another
- * '<em>nn</em>' number of packets have been received, buffer is flushed
- * to file, overwriting previous write. If not entered, value defaults
- * to 100. Can only be updated if packet capture is off.
- *
- * - <b>intfc <interface>|any</b> - Used to specify a given interface,
- * or use '<em>any</em>' to run packet capture on all interfaces.
- * '<em>any</em>' is the default if not provided. Settings from a previous
- * packet capture are preserved, so '<em>any</em>' can be used to reset
- * the interface setting.
- *
- * - <b>file <name></b> - Used to specify the output filename. The file will
- * be placed in the '<em>/tmp</em>' directory, so only the filename is
- * supported. Directory should not be entered. If file already exists, file
- * will be overwritten. If no filename is provided, '<em>/tmp/vpe.pcap</em>'
- * will be used. Can only be updated if packet capture is off.
- *
- * - <b>status</b> - Displays the current status and configured attributes
- * associated with a packet capture. If packet capture is in progress,
- * '<em>status</em>' also will return the number of packets currently in
- * the local buffer. All additional attributes entered on command line
- * with '<em>status</em>' will be ignored and not applied.
- *
- * @cliexpar
- * Example of how to display the status of a tx packet capture when off:
- * @cliexstart{pcap tx trace status}
- * max is 100, for any interface to file /tmp/vpe.pcap
- * pcap tx capture is off...
- * @cliexend
- * Example of how to start a tx packet capture:
- * @cliexstart{pcap tx trace on max 35 intfc GigabitEthernet0/8/0 file vppTest.pcap}
- * pcap tx capture on...
- * @cliexend
- * Example of how to display the status of a tx packet capture in progress:
- * @cliexstart{pcap tx trace status}
- * max is 35, for interface GigabitEthernet0/8/0 to file /tmp/vppTest.pcap
- * pcap tx capture is on: 20 of 35 pkts...
- * @cliexend
- * Example of how to stop a tx packet capture:
- * @cliexstart{vppctl pcap tx trace off}
- * captured 21 pkts...
- * saved to /tmp/vppTest.pcap...
- * @cliexend
-?*/
-/* *INDENT-OFF* */
-
-VLIB_CLI_COMMAND (pcap_tx_trace_command, static) = {
- .path = "pcap tx trace",
- .short_help =
- "pcap tx trace [on|off] [max <nn>] [intfc <interface>|any] [file <name>] [status]",
- .function = pcap_tx_trace_command_fn,
-};
-VLIB_CLI_COMMAND (pcap_rx_trace_command, static) = {
- .path = "pcap rx trace",
- .short_help =
- "pcap rx trace [on|off] [max <nn>] [intfc <interface>|any] [file <name>] [status]",
- .function = pcap_rx_trace_command_fn,
-};
-/* *INDENT-ON* */
-
-
static clib_error_t *
show_dpdk_buffer (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
Code Review / vpp.git / blobdiff