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/*
* Copyright (c) 2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <http_static/http_static.h>
#include <vpp/app/version.h>
int
handle_get_version (http_req_method_t reqtype, u8 *request, hss_session_t *hs)
{
u8 *s = 0;
s = format (s, "{\"vpp_details\": {");
s = format (s, " \"version\": \"%s\",", VPP_BUILD_VER);
s = format (s, " \"build_date\": \"%s\"}}\r\n", VPP_BUILD_DATE);
hs->data = s;
hs->data_offset = 0;
hs->cache_pool_index = ~0;
hs->free_data = 1;
return 0;
}
void
trim_path_from_request (u8 *s, char *path)
{
u8 *cp;
int trim_length = strlen (path) + 1 /* remove '?' */;
/* Get rid of the path and question-mark */
vec_delete (s, trim_length, 0);
/* Tail trim irrelevant browser info */
cp = s;
while ((cp - s) < vec_len (s))
{
if (*cp == ' ')
{
/*
* Makes request a vector which happens to look
* like a c-string.
*/
*cp = 0;
_vec_len (s) = cp - s;
break;
}
cp++;
}
}
int
handle_get_interface_stats (http_req_method_t reqtype, u8 *request,
hss_session_t *hs)
{
u8 *s = 0, *stats = 0;
uword *p;
u32 *sw_if_indices = 0;
vnet_hw_interface_t *hi;
vnet_sw_interface_t *si;
char *q = "\"";
int i;
int need_comma = 0;
u8 *format_vnet_sw_interface_cntrs (u8 * s, vnet_interface_main_t * im,
vnet_sw_interface_t * si, int json);
vnet_main_t *vnm = vnet_get_main ();
vnet_interface_main_t *im = &vnm->interface_main;
/* Get stats for a single interface via http POST */
if (reqtype == HTTP_REQ_POST)
{
trim_path_from_request (request, "interface_stats.json");
/* Find the sw_if_index */
p = hash_get (im->hw_interface_by_name, request);
if (!p)
{
s = format (s, "{\"interface_stats\": {[\n");
s = format (s, " \"name\": \"%s\",", request);
s = format (s, " \"error\": \"%s\"", "UnknownInterface");
s = format (s, "]}\n");
goto out;
}
vec_add1 (sw_if_indices, p[0]);
}
else /* default, HTTP_BUILTIN_METHOD_GET */
{
pool_foreach (hi, im->hw_interfaces)
{
vec_add1 (sw_if_indices, hi->sw_if_index);
}
}
s = format (s, "{%sinterface_stats%s: [\n", q, q);
for (i = 0; i < vec_len (sw_if_indices); i++)
{
si = vnet_get_sw_interface (vnm, sw_if_indices[i]);
if (need_comma)
s = format (s, ",\n");
need_comma = 1;
s = format (s, "{%sname%s: %s%U%s, ", q, q, q,
format_vnet_sw_if_index_name, vnm, sw_if_indices[i], q);
stats = format_vnet_sw_interface_cntrs (stats, &vnm->interface_main, si,
1 /* want json */);
if (vec_len (stats))
s = format (s, "%v}", stats);
else
s = format (s, "%snone%s: %strue%s}", q, q, q, q);
vec_reset_length (stats);
}
s = format (s, "]}\n");
out:
hs->data = s;
hs->data_offset = 0;
hs->cache_pool_index = ~0;
hs->free_data = 1;
vec_free (sw_if_indices);
vec_free (stats);
return 0;
}
int
handle_get_interface_list (http_req_method_t reqtype, u8 *request,
hss_session_t *hs)
{
u8 *s = 0;
int i;
vnet_main_t *vnm = vnet_get_main ();
vnet_interface_main_t *im = &vnm->interface_main;
vnet_hw_interface_t *hi;
u32 *hw_if_indices = 0;
int need_comma = 0;
/* Construct vector of active hw_if_indexes ... */
pool_foreach (hi, im->hw_interfaces)
{
/* No point in mentioning "local0"... */
if (hi - im->hw_interfaces)
vec_add1 (hw_if_indices, hi - im->hw_interfaces);
}
/* Build answer */
s = format (s, "{\"interface_list\": [\n");
for (i = 0; i < vec_len (hw_if_indices); i++)
{
if (need_comma)
s = format (s, ",\n");
hi = pool_elt_at_index (im->hw_interfaces, hw_if_indices[i]);
s = format (s, "\"%v\"", hi->name);
need_comma = 1;
}
s = format (s, "]}\n");
vec_free (hw_if_indices);
hs->data = s;
hs->data_offset = 0;
hs->cache_pool_index = ~0;
hs->free_data = 1;
return 0;
}
void
hss_builtinurl_json_handlers_init (void)
{
hss_register_url_handler (handle_get_version, "version.json", HTTP_REQ_GET);
hss_register_url_handler (handle_get_interface_list, "interface_list.json",
HTTP_REQ_GET);
hss_register_url_handler (handle_get_interface_stats, "interface_stats.json",
HTTP_REQ_GET);
hss_register_url_handler (handle_get_interface_stats, "interface_stats.json",
HTTP_REQ_POST);
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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