}
#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)
dpdk_device_t *xd = vec_elt_at_index (dm->devices, rd->dev_instance);
u32 n_packets = f->n_vectors;
u32 n_left;
- u32 *from;
u32 thread_index = vm->thread_index;
int queue_id = thread_index;
u32 tx_pkts = 0, all_or_flags = 0;
struct rte_mbuf **mb;
vlib_buffer_t *b[4];
- from = vlib_frame_vector_args (f);
-
ASSERT (n_packets <= VLIB_FRAME_SIZE);
- /* TX PCAP tracing */
- if (PREDICT_FALSE (dm->pcap[VLIB_TX].pcap_enable))
- {
- n_left = n_packets;
- while (n_left > 0)
- {
- u32 bi0 = from[0];
- vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
- if (dm->pcap[VLIB_TX].pcap_sw_if_index == 0 ||
- dm->pcap[VLIB_TX].pcap_sw_if_index
- == vnet_buffer (b0)->sw_if_index[VLIB_TX])
- pcap_add_buffer (&dm->pcap[VLIB_TX].pcap_main, vm, bi0, 512);
- from++;
- n_left--;
- }
- }
-
/* calculate rte_mbuf pointers out of buffer indices */
vlib_get_buffers_with_offset (vm, vlib_frame_vector_args (f),
(void **) ptd->mbufs, n_packets,
-(i32) sizeof (struct rte_mbuf));
- from = vlib_frame_vector_args (f);
n_left = n_packets;
mb = ptd->mbufs;
#include <rte_bus_pci.h>
#include <rte_flow.h>
-#include <vppinfra/pcap.h>
#include <vnet/devices/devices.h>
#if CLIB_DEBUG > 0
vlib_buffer_t buffer_template;
} dpdk_per_thread_data_t;
-typedef struct
-{
- int pcap_enable;
- u32 pcap_sw_if_index;
- pcap_main_t pcap_main;
-} dpdk_pcap_t;
-
typedef struct
{
/* buffer flags template, configurable to enable/disable tcp / udp cksum */
u32 buffer_flags_template;
- /* pcap tracing */
- dpdk_pcap_t pcap[VLIB_N_RX_TX];
-
- int pcap_enable;
- pcap_main_t pcap_main;
- u8 *pcap_filename;
- u32 pcap_sw_if_index;
- u32 pcap_pkts_to_capture;
-
/*
* flag indicating that a posted admin up/down
* (via post_sw_interface_set_flags) is in progress
vlib_set_trace_count (vm, node, n_trace);
}
- /* rx pcap capture if enabled */
- if (PREDICT_FALSE (dm->pcap[VLIB_RX].pcap_enable))
- {
- u32 bi0;
-
- if (single_next)
- vlib_get_buffer_indices_with_offset (vm, (void **) ptd->mbufs,
- ptd->buffers, n_rx_packets,
- sizeof (struct rte_mbuf));
-
- n_left = n_rx_packets;
- buffers = ptd->buffers;
- while (n_left)
- {
- bi0 = buffers[0];
- b0 = vlib_get_buffer (vm, bi0);
- buffers++;
-
- if (dm->pcap[VLIB_RX].pcap_sw_if_index == 0 ||
- dm->pcap[VLIB_RX].pcap_sw_if_index
- == vnet_buffer (b0)->sw_if_index[VLIB_RX])
- {
- struct rte_mbuf *mb;
- i16 data_start;
- i32 temp_advance;
-
- /*
- * Note: current_data will have advanced
- * when we skip ethernet input.
- * Temporarily back up to the original DMA
- * target, so we capture a valid ethernet frame
- */
- mb = rte_mbuf_from_vlib_buffer (b0);
-
- /* Figure out the original data_start */
- data_start = (mb->buf_addr + mb->data_off) - (void *) b0->data;
- /* Back up that far */
- temp_advance = b0->current_data - data_start;
- vlib_buffer_advance (b0, -temp_advance);
- /* Trace the packet */
- pcap_add_buffer (&dm->pcap[VLIB_RX].pcap_main, vm, bi0, 512);
- /* and advance again */
- vlib_buffer_advance (b0, temp_advance);
- }
- n_left--;
- }
- }
-
vlib_increment_combined_counter
(vnet_get_main ()->interface_main.combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_RX, thread_index, xd->sw_if_index,
#define VLIB_ELOG_MAIN_LOOP 0
#endif
+typedef struct
+{
+ int pcap_enable;
+ u32 pcap_sw_if_index;
+ pcap_main_t pcap_main;
+} vnet_pcap_t;
+
typedef struct vlib_main_t
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
uword dispatch_pcap_enable;
u8 *pcap_buffer;
+ /* pcap rx / tx tracing */
+ vnet_pcap_t pcap[VLIB_N_RX_TX];
+
+ int pcap_enable;
+ pcap_main_t pcap_main;
+ u8 *pcap_filename;
+ u32 pcap_sw_if_index;
+ u32 pcap_pkts_to_capture;
+
/* Error handling. */
vlib_error_main_t error_main;
vlib_frame_t * from_frame)
{
u32 *from, n_left;
- if ((node->flags & VLIB_NODE_FLAG_TRACE) == 0)
- return;
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) == 0))
+ {
+ from = vlib_frame_vector_args (from_frame);
+ n_left = from_frame->n_vectors;
- from = vlib_frame_vector_args (from_frame);
- n_left = from_frame->n_vectors;
+ while (n_left)
+ {
+ ethernet_input_trace_t *t0;
+ vlib_buffer_t *b0 = vlib_get_buffer (vm, from[0]);
- while (n_left)
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ t0 = vlib_add_trace (vm, node, b0,
+ sizeof (ethernet_input_trace_t));
+ clib_memcpy_fast (t0->packet_data, b0->data + b0->current_data,
+ sizeof (t0->packet_data));
+ t0->frame_flags = from_frame->flags;
+ clib_memcpy_fast (&t0->frame_data,
+ vlib_frame_scalar_args (from_frame),
+ sizeof (ethernet_input_frame_t));
+ }
+ from += 1;
+ n_left -= 1;
+ }
+ }
+
+ /* rx pcap capture if enabled */
+ if (PREDICT_FALSE (vm->pcap[VLIB_RX].pcap_enable))
{
- ethernet_input_trace_t *t0;
- vlib_buffer_t *b0 = vlib_get_buffer (vm, from[0]);
+ u32 bi0;
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ from = vlib_frame_vector_args (from_frame);
+ n_left = from_frame->n_vectors;
+ while (n_left > 0)
{
- t0 = vlib_add_trace (vm, node, b0, sizeof (ethernet_input_trace_t));
- clib_memcpy_fast (t0->packet_data, b0->data + b0->current_data,
- sizeof (t0->packet_data));
- t0->frame_flags = from_frame->flags;
- clib_memcpy_fast (&t0->frame_data,
- vlib_frame_scalar_args (from_frame),
- sizeof (ethernet_input_frame_t));
+ vlib_buffer_t *b0;
+ bi0 = from[0];
+ from++;
+ b0 = vlib_get_buffer (vm, bi0);
+
+ if (vm->pcap[VLIB_RX].pcap_sw_if_index == 0 ||
+ vm->pcap[VLIB_RX].pcap_sw_if_index
+ == vnet_buffer (b0)->sw_if_index[VLIB_RX])
+ {
+ pcap_add_buffer (&vm->pcap[VLIB_RX].pcap_main, vm, bi0, 512);
+ }
+ n_left--;
}
- from += 1;
- n_left -= 1;
}
}
.is_mp_safe = 1,
};
/* *INDENT-ON* */
+
+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 (1000)
+
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u8 *filename;
+ u8 *chroot_filename = 0;
+ u32 max = 0;
+ int enabled = 0;
+ int errorFlag = 0;
+ clib_error_t *error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+
+ /* 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 (vm->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 (vm->pcap[rx_tx].pcap_enable)
+ {
+ vlib_cli_output
+ (vm, "captured %d pkts...",
+ vm->pcap[rx_tx].pcap_main.n_packets_captured);
+ if (vm->pcap[rx_tx].pcap_main.n_packets_captured)
+ {
+ vm->pcap[rx_tx].pcap_main.n_packets_to_capture =
+ vm->pcap[rx_tx].pcap_main.n_packets_captured;
+ error = pcap_write (&vm->pcap[rx_tx].pcap_main);
+ if (error)
+ clib_error_report (error);
+ else
+ vlib_cli_output (vm, "saved to %s...",
+ vm->pcap[rx_tx].pcap_main.file_name);
+ }
+
+ vm->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 (vm->pcap[rx_tx].pcap_enable)
+ {
+ vlib_cli_output
+ (vm,
+ "can't change max value while pcap tx capture active...");
+ errorFlag = 1;
+ break;
+ }
+ vm->pcap[rx_tx].pcap_main.n_packets_to_capture = max;
+ }
+ else if (unformat (line_input, "intfc %U",
+ unformat_vnet_sw_interface, vnm,
+ &vm->pcap[rx_tx].pcap_sw_if_index))
+ ;
+
+ else if (unformat (line_input, "intfc any"))
+ {
+ vm->pcap[rx_tx].pcap_sw_if_index = 0;
+ }
+ else if (unformat (line_input, "file %s", &filename))
+ {
+ if (vm->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 (vm->pcap[rx_tx].pcap_sw_if_index == 0)
+ {
+ vlib_cli_output
+ (vm, "max is %d for any interface to file %s",
+ vm->pcap[rx_tx].pcap_main.n_packets_to_capture ?
+ vm->pcap[rx_tx].pcap_main.n_packets_to_capture
+ : PCAP_DEF_PKT_TO_CAPTURE,
+ vm->pcap[rx_tx].pcap_main.file_name ?
+ (u8 *) vm->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",
+ vm->pcap[rx_tx].pcap_main.n_packets_to_capture
+ ? vm->pcap[rx_tx].
+ pcap_main.n_packets_to_capture :
+ PCAP_DEF_PKT_TO_CAPTURE,
+ format_vnet_sw_if_index_name, vnm,
+ vm->pcap_sw_if_index,
+ vm->pcap[rx_tx].
+ pcap_main.file_name ? (u8 *) vm->pcap[rx_tx].
+ pcap_main.file_name : (u8 *) "/tmp/vpe.pcap");
+ }
+
+ if (vm->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",
+ vm->pcap[rx_tx].pcap_main.n_packets_captured,
+ vm->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 (vm->pcap[rx_tx].pcap_main.file_name)
+ vec_free (vm->pcap[rx_tx].pcap_main.file_name);
+ vec_add1 (chroot_filename, 0);
+ vm->pcap[rx_tx].pcap_main.file_name = (char *) chroot_filename;
+ }
+
+ if (max)
+ vm->pcap[rx_tx].pcap_main.n_packets_to_capture = max;
+
+ if (enabled)
+ {
+ if (vm->pcap[rx_tx].pcap_main.file_name == 0)
+ vm->pcap[rx_tx].pcap_main.file_name
+ = (char *) format (0, "/tmp/vpe.pcap%c", 0);
+
+ vm->pcap[rx_tx].pcap_main.n_packets_captured = 0;
+ vm->pcap[rx_tx].pcap_main.packet_type = PCAP_PACKET_TYPE_ethernet;
+ if (vm->pcap[rx_tx].pcap_main.lock == 0)
+ clib_spinlock_init (&(vm->pcap[rx_tx].pcap_main.lock));
+ vm->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* */
+
+
/*
* fd.io coding-style-patch-verification: ON
*
return n_buffers;
}
+static_always_inline void vnet_interface_pcap_tx_trace
+ (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame,
+ int sw_if_index_from_buffer)
+{
+ u32 n_left_from, *from;
+ u32 sw_if_index;
+
+ if (PREDICT_TRUE (vm->pcap[VLIB_TX].pcap_enable == 0))
+ return;
+
+ if (sw_if_index_from_buffer == 0)
+ {
+ vnet_interface_output_runtime_t *rt = (void *) node->runtime_data;
+ sw_if_index = rt->sw_if_index;
+ }
+ else
+ sw_if_index = ~0;
+
+ n_left_from = frame->n_vectors;
+ from = vlib_frame_vector_args (frame);
+
+ while (n_left_from > 0)
+ {
+ u32 bi0 = from[0];
+ vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
+
+ if (sw_if_index_from_buffer)
+ sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+
+ if (vm->pcap[VLIB_TX].pcap_sw_if_index == 0 ||
+ vm->pcap[VLIB_TX].pcap_sw_if_index == sw_if_index)
+ pcap_add_buffer (&vm->pcap[VLIB_TX].pcap_main, vm, bi0, 512);
+ from++;
+ n_left_from--;
+ }
+}
+
static_always_inline uword
vnet_interface_output_node_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
vnet_hw_interface_t * hi,
int do_tx_offloads)
{
+ vnet_interface_pcap_tx_trace (vm, node, frame,
+ 0 /* sw_if_index_from_buffer */ );
+
/*
* The 3-headed "if" is here because we want to err on the side
* of not impacting the non-GSO performance - so for the more
vnet_interface_output_runtime_t *rt = (void *) node->runtime_data;
hi = vnet_get_sup_hw_interface (vnm, rt->sw_if_index);
+ vnet_interface_pcap_tx_trace (vm, node, frame,
+ 0 /* sw_if_index_from_buffer */ );
+
if (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD)
return vnet_interface_output_node_inline (vm, node, frame, vnm, hi,
/* do_tx_offloads */ 0);
u32 n_left_to_next, *from, *to_next;
u32 n_left_from, next_index;
+ vnet_interface_pcap_tx_trace (vm, node, frame,
+ 1 /* sw_if_index_from_buffer */ );
+
n_left_from = frame->n_vectors;
from = vlib_frame_vector_args (frame);
Code Review / vpp.git / commitdiff