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authorOle Troan <ot@cisco.com>2019-08-23 22:55:18 +0200
committerAndrew Yourtchenko <ayourtch@gmail.com>2019-09-03 20:04:13 +0000
commite5ff5a36dd126ee57dca4e0b03da2f7704e0a4f5 (patch)
tree2108baa60e8a697624288fe2c3050be29697bc88 /src/vat/api_format.c
parentb6fde4a8bae474c6b73d08d223028f42e396d452 (diff)
api: enforce vla is last and fixed string type
Enforce that variable length fields are the last element of API messages. Add a 'fixed' version of string type, since dealing with multiple variable length strings turned out too painful for the C language bindings. The string type is now: { string name[64]; // NUL terminated C-string. Essentially decays to u8 name[64] string name[]; // Variable length string with embedded len field (vl_api_string_t) }; The latter notation could be made available to other types as well. e.g. { vl_api_address_t addresses[]; } instead of { u32 n_addr; vl_api_address_t addresses[n_addr]; }; Type: fix Change-Id: I18fa17ef47227633752ab50453e8d20a652a9f9b Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vat/api_format.c')
-rw-r--r--src/vat/api_format.c54
1 files changed, 11 insertions, 43 deletions
diff --git a/src/vat/api_format.c b/src/vat/api_format.c
index 7efdadc103b..46039371a45 100644
--- a/src/vat/api_format.c
+++ b/src/vat/api_format.c
@@ -974,8 +974,7 @@ static void vl_api_sw_interface_details_t_handler
(vl_api_sw_interface_details_t * mp)
{
vat_main_t *vam = &vat_main;
- u8 *s = format (0, "%s%c",
- vl_api_from_api_string (&mp->interface_name), 0);
+ u8 *s = format (0, "%s%c", mp->interface_name, 0);
hash_set_mem (vam->sw_if_index_by_interface_name, s,
ntohl (mp->sw_if_index));
@@ -1027,7 +1026,7 @@ static void vl_api_sw_interface_details_t_handler_json
vat_json_object_add_bytes (node, "l2_address", mp->l2_address,
sizeof (mp->l2_address));
vat_json_object_add_string_copy (node, "interface_name",
- mp->interface_name.buf);
+ mp->interface_name);
vat_json_object_add_uint (node, "flags", mp->flags);
vat_json_object_add_uint (node, "link_duplex", mp->link_duplex);
vat_json_object_add_uint (node, "link_speed", mp->link_speed);
@@ -1324,30 +1323,10 @@ static void vl_api_show_version_reply_t_handler
if (retval >= 0)
{
- u8 *s = 0;
- char *p = (char *) &mp->program;
-
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg (" program: %v\n", s);
- vec_free (s);
-
- p +=
- vl_api_string_len ((vl_api_string_t *) p) + sizeof (vl_api_string_t);
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg (" version: %v\n", s);
- vec_free (s);
-
- p +=
- vl_api_string_len ((vl_api_string_t *) p) + sizeof (vl_api_string_t);
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg (" build date: %v\n", s);
- vec_free (s);
-
- p +=
- vl_api_string_len ((vl_api_string_t *) p) + sizeof (vl_api_string_t);
- s = vl_api_from_api_to_vec ((vl_api_string_t *) p);
- errmsg ("build directory: %v\n", s);
- vec_free (s);
+ errmsg (" program: %s", mp->program);
+ errmsg (" version: %s", mp->version);
+ errmsg (" build date: %s", mp->build_date);
+ errmsg ("build directory: %s", mp->build_directory);
}
vam->retval = retval;
vam->result_ready = 1;
@@ -1361,22 +1340,11 @@ static void vl_api_show_version_reply_t_handler_json
vat_json_init_object (&node);
vat_json_object_add_int (&node, "retval", ntohl (mp->retval));
- char *p = (char *) &mp->program;
- vat_json_object_add_string_copy (&node, "program",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
- p += vl_api_string_len ((vl_api_string_t *) p) + sizeof (u32);
- vat_json_object_add_string_copy (&node, "version",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
- p += vl_api_string_len ((vl_api_string_t *) p) + sizeof (u32);
- vat_json_object_add_string_copy (&node, "build_date",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
- p += vl_api_string_len ((vl_api_string_t *) p) + sizeof (u32);
+ vat_json_object_add_string_copy (&node, "program", mp->program);
+ vat_json_object_add_string_copy (&node, "version", mp->version);
+ vat_json_object_add_string_copy (&node, "build_date", mp->build_date);
vat_json_object_add_string_copy (&node, "build_directory",
- vl_api_from_api_string ((vl_api_string_t *)
- p));
+ mp->build_directory);
vat_json_print (vam->ofp, &node);
vat_json_free (&node);
@@ -20367,7 +20335,7 @@ api_sw_interface_tag_add_del (vat_main_t * vam)
mp->sw_if_index = ntohl (sw_if_index);
mp->is_add = enable;
if (enable)
- vl_api_to_api_string (strlen ((char *) tag), (char *) tag, &mp->tag);
+ strncpy ((char *) mp->tag, (char *) tag, ARRAY_LEN (mp->tag) - 1);
vec_free (tag);
S (mp);