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authorOle Troan <ot@cisco.com>2019-07-30 15:38:13 +0200
committerDave Barach <openvpp@barachs.net>2019-08-08 23:01:18 +0000
commitedfe2c0079a756f5fb1108037c39450e3521c8bd (patch)
tree224db0f0abe2ef2610ac111674c3885867f830fe /src/vlibmemory/vlib_api_cli.c
parentc54235776c08ec1e10d80d8c91e6e45e2d2f6831 (diff)
api: vppapitrace JSON/API trace converter
usage: vppapitrace.py [-h] [--debug] [--apidir APIDIR] {convert,replay} ... optional arguments: -h, --help show this help message and exit --debug enable debug mode --apidir APIDIR Location of JSON API definitions subcommands: valid subcommands {convert,replay} additional help convert Convert API trace to JSON or Python and back replay Replay messages to running VPP instance To convert an API trace file to JSON: vppapitrace convert /tmp/api.trace trace.json To convert an (edited) JSON file back to API trace for replay: vppapitrace convert trace.json api-edited.trace To generate a Python file that can be replayed: vppapitrace convert /tmp/api.trace trace.py vppapitrace convert trace.json trace.py Replay it to a running VPP instance: vppapitrace replay --socket /tmp/api.trace In VPP that file can be replayed with: vpp# api trace replay api-edited.trace This patch also modifies the API binary trace format, to include the message id to message name table. Change-Id: Ie6441efb53c1c93c9f778f6ae9c1758bccc8dd87 Type: refactor Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vlibmemory/vlib_api_cli.c')
-rwxr-xr-xsrc/vlibmemory/vlib_api_cli.c61
1 files changed, 33 insertions, 28 deletions
diff --git a/src/vlibmemory/vlib_api_cli.c b/src/vlibmemory/vlib_api_cli.c
index b5fe151a2c0..0d5ce96fbdf 100755
--- a/src/vlibmemory/vlib_api_cli.c
+++ b/src/vlibmemory/vlib_api_cli.c
@@ -402,10 +402,9 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
struct stat statb;
size_t file_size;
u8 *msg;
- u8 endian_swap_needed = 0;
api_main_t *am = &api_main;
u8 *tmpbuf = 0;
- u32 nitems;
+ u32 nitems, nitems_msgtbl;
void **saved_print_handlers = 0;
fd = open ((char *) filename, O_RDONLY);
@@ -443,14 +442,7 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
}
close (fd);
- if ((clib_arch_is_little_endian && hp->endian == VL_API_BIG_ENDIAN)
- || (clib_arch_is_big_endian && hp->endian == VL_API_LITTLE_ENDIAN))
- endian_swap_needed = 1;
-
- if (endian_swap_needed)
- nitems = ntohl (hp->nitems);
- else
- nitems = hp->nitems;
+ nitems = ntohl (hp->nitems);
if (last_index == (u32) ~ 0)
{
@@ -473,9 +465,26 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
saved_print_handlers = (void **) vec_dup (am->msg_print_handlers);
vl_msg_api_custom_dump_configure (am);
}
+ 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;
- msg = (u8 *) (hp + 1);
+ unserialize_open_data (sm, msg, msgtbl_size);
+ unserialize_integer (sm, &nitems_msgtbl, sizeof (u32));
+
+ for (i = 0; i < nitems_msgtbl; i++)
+ {
+ u16 msg_index = unserialize_likely_small_unsigned_integer (sm);
+ unserialize_cstring (sm, (char **) &name_and_crc);
+ u16 msg_index2 = vl_msg_api_get_msg_index (name_and_crc);
+ vec_validate (msgid_vec, msg_index);
+ msgid_vec[msg_index] = msg_index2;
+ }
+
+ msg += msgtbl_size;
for (i = 0; i < first_index; i++)
{
@@ -486,11 +495,9 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
size = clib_host_to_net_u32 (*(u32 *) msg);
msg += sizeof (u32);
- if (clib_arch_is_little_endian)
- msg_id = ntohs (*((u16 *) msg));
- else
- msg_id = *((u16 *) msg);
-
+ msg_id = ntohs (*((u16 *) msg));
+ if (msg_id < vec_len (msgid_vec))
+ msg_id = msgid_vec[msg_id];
cfgp = am->api_trace_cfg + msg_id;
if (!cfgp)
{
@@ -507,7 +514,6 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
for (; i <= last_index; i++)
{
trace_cfg_t *cfgp;
- u16 *msg_idp;
u16 msg_id;
int size;
@@ -517,10 +523,11 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
size = clib_host_to_net_u32 (*(u32 *) msg);
msg += sizeof (u32);
- if (clib_arch_is_little_endian)
- msg_id = ntohs (*((u16 *) msg));
- else
- msg_id = *((u16 *) msg);
+ msg_id = ntohs (*((u16 *) msg));
+ if (msg_id < vec_len (msgid_vec))
+ {
+ msg_id = msgid_vec[msg_id];
+ }
cfgp = am->api_trace_cfg + msg_id;
if (!cfgp)
@@ -538,12 +545,10 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
clib_memset (tmpbuf, 0xf, sizeof (uword));
/*
- * Endian swap if needed. All msg data is supposed to be
- * in network byte order. All msg handlers are supposed to
- * know that. The generic message dumpers don't know that.
- * One could fix apigen, I suppose.
+ * Endian swap if needed. All msg data is supposed to be in
+ * network byte order.
*/
- if ((which == DUMP && clib_arch_is_little_endian) || endian_swap_needed)
+ if ((which == DUMP && clib_arch_is_little_endian))
{
void (*endian_fp) (void *);
if (msg_id >= vec_len (am->msg_endian_handlers)
@@ -562,7 +567,7 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
/* msg_id always in network byte order */
if (clib_arch_is_little_endian)
{
- msg_idp = (u16 *) (tmpbuf + sizeof (uword));
+ u16 *msg_idp = (u16 *) (tmpbuf + sizeof (uword));
*msg_idp = msg_id;
}
@@ -1051,7 +1056,7 @@ dump_api_table_file_command_fn (vlib_main_t * vm,
item->crc = extract_crc (name_and_crc);
item->which = 0; /* file */
}
- serialize_close (sm);
+ unserialize_close (sm);
/* Compare with the current image? */
if (compare_current)