typedef enum
{
DUMP,
+ DUMP_JSON,
REPLAY,
INITIALIZERS,
} vl_api_replay_t;
{
vl_api_trace_file_header_t *hp;
int i, fd;
+ u16 *msgid_vec = 0;
struct stat statb;
size_t file_size;
u8 *msg;
vlib_cli_output (vm,
"Note: wrapped/incomplete trace, results may vary\n");
+ size_t file_size_left = file_size;
+
+#define assert_size(size_left, s) \
+ do \
+ { \
+ if ((s) >= size_left) \
+ { \
+ vlib_cli_output (vm, "corrupted file"); \
+ munmap (hp, file_size); \
+ vec_free (msgid_vec); \
+ return; \
+ } \
+ size_left -= s; \
+ } \
+ while (0);
+
+ assert_size (file_size_left, sizeof (hp[0]));
msg = (u8 *) (hp + 1);
- u16 *msgid_vec = 0;
serialize_main_t _sm, *sm = &_sm;
u32 msgtbl_size = ntohl (hp->msgtbl_size);
u8 *name_and_crc;
+ assert_size (file_size_left, msgtbl_size);
+
unserialize_open_data (sm, msg, msgtbl_size);
unserialize_integer (sm, &nitems_msgtbl, sizeof (u32));
int size;
u16 msg_id;
+ assert_size (file_size_left, sizeof (u32));
size = clib_host_to_net_u32 (*(u32 *) msg);
msg += sizeof (u32);
+ assert_size (file_size_left, size);
msg_id = ntohs (*((u16 *) msg));
if (msg_id < vec_len (msgid_vec))
msg_id = msgid_vec[msg_id];
{
vlib_cli_output (vm, "Ugh: msg id %d no trace config\n", msg_id);
munmap (hp, file_size);
+ vec_free (msgid_vec);
return;
}
msg += size;
* Endian swap if needed. All msg data is supposed to be in
* network byte order.
*/
- if (((which == DUMP) && clib_arch_is_little_endian))
+ if (((which == DUMP || which == DUMP_JSON) &&
+ clib_arch_is_little_endian))
{
void (*endian_fp) (void *);
if (msg_id >= vec_len (am->msg_endian_handlers)
switch (which)
{
+ case DUMP_JSON:
+ if (msg_id < vec_len (am->msg_print_json_handlers) &&
+ am->msg_print_json_handlers[msg_id])
+ {
+ u8 *(*print_fp) (void *, void *);
+
+ print_fp = (void *) am->msg_print_json_handlers[msg_id];
+ (*print_fp) (tmpbuf + sizeof (uword), vm);
+ }
+ else
+ {
+ vlib_cli_output (vm, "Skipping msg id %d: no JSON print fcn\n",
+ msg_id);
+ break;
+ }
+ break;
+
case DUMP:
if (msg_id < vec_len (am->msg_print_handlers) &&
am->msg_print_handlers[msg_id])
munmap (hp, file_size);
vec_free (tmpbuf);
+ vec_free (msgid_vec);
am->replay_in_progress = 0;
}
+static int
+file_exists (u8 *fname)
+{
+ FILE *fp = 0;
+ fp = fopen ((char *) fname, "r");
+ if (fp)
+ {
+ fclose (fp);
+ return 1;
+ }
+ return 0;
+}
+
+typedef struct
+{
+ vlib_main_t *vm;
+ u8 is_json;
+} vl_msg_print_args;
+
+static int
+vl_msg_print_trace (u8 *msg, void *ctx)
+{
+ vl_msg_print_args *a = ctx;
+ api_main_t *am = vlibapi_get_main ();
+ u16 msg_id = ntohs (*((u16 *) msg));
+ void (*print_fp) (void *, void *);
+ void (**handlers) (void *, void *);
+ u8 is_json = a->is_json;
+ u8 *tmpbuf = 0;
+
+ if (clib_arch_is_little_endian)
+ {
+ u32 msg_length = vec_len (msg);
+ vec_validate (tmpbuf, msg_length - 1);
+ clib_memcpy_fast (tmpbuf, msg, msg_length);
+ msg = tmpbuf;
+
+ void (*endian_fp) (void *);
+ endian_fp = am->msg_endian_handlers[msg_id];
+ (*endian_fp) (tmpbuf);
+ }
+
+ if (is_json)
+ handlers = am->msg_print_json_handlers;
+ else
+ handlers = am->msg_print_handlers;
+
+ if (msg_id < vec_len (handlers) && handlers[msg_id])
+ {
+ print_fp = (void *) handlers[msg_id];
+ (*print_fp) (msg, a->vm);
+ }
+ else
+ {
+ vlib_cli_output (a->vm, "Skipping msg id %d: no print fcn\n", msg_id);
+ }
+
+ vec_free (tmpbuf);
+ return 0;
+}
+
+static int
+vl_msg_api_dump_trace (vlib_main_t *vm, vl_api_trace_which_t which, u8 is_json)
+{
+ api_main_t *am = vlibapi_get_main ();
+ vl_api_trace_t *tp;
+
+ switch (which)
+ {
+ case VL_API_TRACE_TX:
+ tp = am->tx_trace;
+ break;
+ case VL_API_TRACE_RX:
+ tp = am->rx_trace;
+ break;
+ default:
+ return -1;
+ }
+
+ if (tp == 0 || tp->nitems == 0 || vec_len (tp->traces) == 0)
+ return -1;
+
+ vl_msg_print_args args;
+ clib_memset (&args, 0, sizeof (args));
+ args.is_json = is_json;
+ args.vm = vm;
+ vl_msg_traverse_trace (tp, vl_msg_print_trace, &args);
+
+ return 0;
+}
+
+static char *
+vl_msg_read_file (FILE *f)
+{
+ const size_t bufsize = 1024;
+ char *buf[bufsize], *v = 0;
+ size_t n;
+
+ while ((n = fread (buf, 1, bufsize, f)))
+ vec_add (v, buf, n);
+
+ return v;
+}
+
+static u16
+vl_msg_find_id_by_name_and_crc (vlib_main_t *vm, api_main_t *am, char *name)
+{
+ uword *p;
+ p = hash_get_mem (am->msg_index_by_name_and_crc, name);
+ if (!p)
+ return (u16) ~0;
+
+ return p[0];
+}
+
+static u16
+vl_msg_find_id_by_name (vlib_main_t *vm, api_main_t *am, char *name)
+{
+ uword *p;
+
+ if (!am->msg_id_by_name)
+ {
+ vlib_cli_output (vm, "message id table not yet initialized!\n");
+ return (u16) ~0;
+ }
+
+ p = hash_get_mem (am->msg_id_by_name, name);
+ if (!p)
+ return (u16) ~0;
+
+ return p[0];
+}
+
+static int
+vl_msg_exec_json_command (vlib_main_t *vm, cJSON *o)
+{
+ api_main_t *am = vlibapi_get_main ();
+ u16 msg_id;
+ void *(*fromjson) (cJSON *, int *);
+ int len = 0, rv = -1;
+ trace_cfg_t *cfgp;
+ u8 *msg = 0;
+
+ cJSON *msg_id_obj = cJSON_GetObjectItem (o, "_msgname");
+ if (!msg_id_obj)
+ {
+ vlib_cli_output (vm, "Missing '_msgname' element!\n");
+ return rv;
+ }
+ char *name = cJSON_GetStringValue (msg_id_obj);
+
+ cJSON *crc_obj = cJSON_GetObjectItem (o, "_crc");
+ if (!msg_id_obj)
+ {
+ vlib_cli_output (vm, "Missing '_crc' element!\n");
+ return rv;
+ }
+ char *crc = cJSON_GetStringValue (crc_obj);
+ u8 proc_warning = 0;
+
+ u8 *name_crc = format (0, "%s_%s%c", name, crc, 0);
+ msg_id = vl_msg_find_id_by_name_and_crc (vm, am, (char *) name_crc);
+ if (msg_id == (u16) ~0)
+ {
+ msg_id = vl_msg_find_id_by_name (vm, am, name);
+ if (msg_id == (u16) ~0)
+ {
+ vlib_cli_output (vm, "unknown msg id %d!\n", msg_id);
+ vec_free (name_crc);
+ return rv;
+ }
+ proc_warning = 1;
+ }
+ vec_free (name_crc);
+
+ cfgp = am->api_trace_cfg + msg_id;
+ if (!cfgp)
+ {
+ vlib_cli_output (vm, "msg id %d no trace config\n", msg_id);
+ return rv;
+ }
+
+ if (cfgp->replay_enable)
+ {
+
+ if (proc_warning)
+ vlib_cli_output (vm, "warning: msg %d has different signature\n");
+
+ fromjson = am->msg_fromjson_handlers[msg_id];
+ if (!fromjson)
+ {
+ vlib_cli_output (vm, "missing fromjson convert function! id %d\n",
+ msg_id);
+ return rv;
+ }
+
+ msg = (u8 *) fromjson (o, &len);
+ if (!msg)
+ {
+ vlib_cli_output (vm, "failed to convert JSON (msg id %d)!\n",
+ msg_id);
+ return rv;
+ }
+
+ if (clib_arch_is_little_endian)
+ {
+ void (*endian_fp) (void *);
+ endian_fp = am->msg_endian_handlers[msg_id];
+ (*endian_fp) (msg);
+ }
+
+ void (*handler) (void *, vlib_main_t *);
+ handler = (void *) am->msg_handlers[msg_id];
+ if (!handler)
+ {
+ vlib_cli_output (vm, "no handler for msg id %d!\n", msg_id);
+ goto end;
+ }
+
+ if (!am->is_mp_safe[msg_id])
+ vl_msg_api_barrier_sync ();
+ (*handler) (msg, vm);
+ if (!am->is_mp_safe[msg_id])
+ vl_msg_api_barrier_release ();
+ }
+
+ rv = 0;
+end:
+ if (msg)
+ cJSON_free (msg);
+ return rv;
+}
+
+static void
+vl_msg_replay_json (vlib_main_t *vm, u8 *filename)
+{
+ api_main_t *am = vlibapi_get_main ();
+ cJSON *o = 0;
+ int rv = 0;
+ FILE *f = fopen ((char *) filename, "r");
+
+ if (!f)
+ {
+ vlib_cli_output (vm, "failed to open %s!\n", filename);
+ return;
+ }
+
+ char *buf = vl_msg_read_file (f);
+ fclose (f);
+
+ o = cJSON_Parse (buf);
+ vec_free (buf);
+ if (!o)
+ {
+ vlib_cli_output (vm, "%s: Failed parsing JSON input: %s\n", filename,
+ cJSON_GetErrorPtr ());
+ return;
+ }
+
+ if (cJSON_IsArray (o))
+ {
+ am->replay_in_progress = 1;
+ size_t size = cJSON_GetArraySize (o);
+ for (int i = 0; i < size; i++)
+ {
+ rv = vl_msg_exec_json_command (vm, cJSON_GetArrayItem (o, i));
+ if (rv < 0)
+ {
+ am->replay_in_progress = 0;
+ break;
+ }
+ }
+ }
+ else
+ {
+ rv = vl_msg_exec_json_command (vm, o);
+ }
+
+ if (rv < 0)
+ vlib_cli_output (vm, "error during replaying API trace");
+
+ cJSON_Delete (o);
+}
+
+static void
+vl_msg_dump_file_json (vlib_main_t *vm, u8 *filename)
+{
+ FILE *f = fopen ((char *) filename, "r");
+ char *buf;
+
+ if (!f)
+ {
+ vlib_cli_output (vm, "failed to open %s!\n", filename);
+ return;
+ }
+
+ buf = vl_msg_read_file (f);
+ fclose (f);
+
+ if (!buf)
+ {
+ vlib_cli_output (vm, "no content in %s!\n", filename);
+ return;
+ }
+
+ vlib_cli_output (vm, buf);
+ vec_free (buf);
+}
+
/** api_trace_command_fn - control the binary API trace / replay feature
Note: this command MUST be marked thread-safe. Replay with
vl_msg_api_trace_onoff (am, which, 0);
vlib_worker_thread_barrier_release (vm);
}
+ else if (unformat (line_input, "save-json %s", &filename))
+ {
+ if (strstr ((char *) filename, "..") ||
+ index ((char *) filename, '/'))
+ {
+ vlib_cli_output (vm, "illegal characters in filename '%s'",
+ filename);
+ goto out;
+ }
+
+ chroot_filename = format (0, "/tmp/%s%c", filename, 0);
+
+ vec_free (filename);
+
+ if (file_exists (chroot_filename))
+ {
+ vlib_cli_output (vm, "file exists: %s\n", chroot_filename);
+ goto out;
+ }
+
+ fp = fopen ((char *) chroot_filename, "w");
+ if (fp == NULL)
+ {
+ vlib_cli_output (vm, "Couldn't create %s\n", chroot_filename);
+ goto out;
+ }
+ vlib_worker_thread_barrier_sync (vm);
+ rv = vl_msg_api_trace_save (am, which, fp, 1);
+ if (rv == -1)
+ vlib_cli_output (vm, "API Trace data not present\n");
+ else if (rv < 0)
+ vlib_cli_output (vm, "failed to save api trace\n");
+ else
+ vlib_cli_output (vm, "API trace saved to %s\n", chroot_filename);
+ vlib_worker_thread_barrier_release (vm);
+ fclose (fp);
+ }
else if (unformat (line_input, "save %s", &filename))
{
if (strstr ((char *) filename, "..")
vec_free (filename);
+ if (file_exists (chroot_filename))
+ {
+ vlib_cli_output (vm, "file exists: %s\n", chroot_filename);
+ goto out;
+ }
+
fp = fopen ((char *) chroot_filename, "w");
if (fp == NULL)
{
goto out;
}
vlib_worker_thread_barrier_sync (vm);
- rv = vl_msg_api_trace_save (am, which, fp);
+ rv = vl_msg_api_trace_save (am, which, fp, 0);
vlib_worker_thread_barrier_release (vm);
fclose (fp);
if (rv == -1)
vlib_cli_output (vm, "API trace saved to %s\n", chroot_filename);
goto out;
}
- else if (unformat (line_input, "dump %s", &filename))
+ else if (unformat (line_input, "tojson %s", &filename))
+ {
+ vl_msg_api_process_file (vm, filename, first, last, DUMP_JSON);
+ }
+ else if (unformat (line_input, "dump-file-json %s", &filename))
+ {
+ vl_msg_dump_file_json (vm, filename);
+ }
+ else if (unformat (line_input, "dump-file %s", &filename))
{
vl_msg_api_process_file (vm, filename, first, last, DUMP);
}
+ else if (unformat (line_input, "dump-json"))
+ {
+ vl_msg_api_dump_trace (vm, which, 1);
+ }
+ else if (unformat (line_input, "dump"))
+ {
+ vl_msg_api_dump_trace (vm, which, 0);
+ }
+ else if (unformat (line_input, "replay-json %s", &filename))
+ {
+ vl_msg_replay_json (vm, filename);
+ }
else if (unformat (line_input, "replay %s", &filename))
{
vl_msg_api_process_file (vm, filename, first, last, REPLAY);
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (api_trace_command, static) = {
.path = "api trace",
- .short_help = "api trace [on|off][first <n>][last <n>][status][free]"
- "[post-mortem-on][dump|save|replay <file>]",
+ .short_help = "api trace [tx][on|off][first <n>][last <n>][status][free]"
+ "[post-mortem-on][dump|dump-file|dump-json|save|tojson|save-"
+ "json|replay <file>|replay-json <file>][nitems <n>]"
+ "[initializers <file>]",
.function = api_trace_command_fn,
.is_mp_safe = 1,
};
/* *INDENT-ON* */
-static clib_error_t *
-vl_api_trace_command (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cli_cmd)
-{
- u32 nitems = 1024;
- vl_api_trace_which_t which = VL_API_TRACE_RX;
- api_main_t *am = vlibapi_get_main ();
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "rx nitems %u", &nitems) || unformat (input, "rx"))
- goto configure;
- else if (unformat (input, "tx nitems %u", &nitems)
- || unformat (input, "tx"))
- {
- which = VL_API_TRACE_RX;
- goto configure;
- }
- else if (unformat (input, "on rx"))
- {
- vl_msg_api_trace_onoff (am, VL_API_TRACE_RX, 1);
- }
- else if (unformat (input, "on tx"))
- {
- vl_msg_api_trace_onoff (am, VL_API_TRACE_TX, 1);
- }
- else if (unformat (input, "on"))
- {
- vl_msg_api_trace_onoff (am, VL_API_TRACE_RX, 1);
- }
- else if (unformat (input, "off"))
- {
- vl_msg_api_trace_onoff (am, VL_API_TRACE_RX, 0);
- vl_msg_api_trace_onoff (am, VL_API_TRACE_TX, 0);
- }
- else if (unformat (input, "free"))
- {
- vl_msg_api_trace_onoff (am, VL_API_TRACE_RX, 0);
- vl_msg_api_trace_onoff (am, VL_API_TRACE_TX, 0);
- vl_msg_api_trace_free (am, VL_API_TRACE_RX);
- vl_msg_api_trace_free (am, VL_API_TRACE_TX);
- }
- else if (unformat (input, "debug on"))
- {
- am->msg_print_flag = 1;
- }
- else if (unformat (input, "debug off"))
- {
- am->msg_print_flag = 0;
- }
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
- return 0;
-
-configure:
- if (vl_msg_api_trace_configure (am, which, nitems))
- {
- vlib_cli_output (vm, "warning: trace configure error (%d, %d)",
- which, nitems);
- }
-
- return 0;
-}
-
-/*?
- * Control the binary API trace mechanism
-?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (trace, static) =
-{
- .path = "set api-trace",
- .short_help = "API trace [on][on tx][on rx][off][free][debug on][debug off]",
- .function = vl_api_trace_command,
-};
-/* *INDENT-ON* */
-
static clib_error_t *
api_trace_config_fn (vlib_main_t * vm, unformat_input_t * input)
{
Code Review / vpp.git / blobdiff