diff options
Diffstat (limited to 'src/plugins/http_static/builtinurl/json_urls.c')
| -rw-r--r-- | src/plugins/http_static/builtinurl/json_urls.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/src/plugins/http_static/builtinurl/json_urls.c b/src/plugins/http_static/builtinurl/json_urls.c new file mode 100644 index 00000000000..808893aac79 --- /dev/null +++ b/src/plugins/http_static/builtinurl/json_urls.c @@ -0,0 +1,192 @@ +/* + * 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> + +hss_url_handler_rc_t +handle_get_version (hss_url_handler_args_t *args) +{ + 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); + + args->data = s; + args->data_len = vec_len (s); + args->free_vec_data = 1; + return HSS_URL_HANDLER_OK; +} + +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_set_len (s, cp - s); + break; + } + cp++; + } +} + +hss_url_handler_rc_t +handle_get_interface_stats (hss_url_handler_args_t *args) +{ + 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 (args->reqtype == HTTP_REQ_POST) + { + trim_path_from_request (args->request, "interface_stats.json"); + + /* Find the sw_if_index */ + p = hash_get (im->hw_interface_by_name, args->request); + if (!p) + { + s = format (s, "{\"interface_stats\": {[\n"); + s = format (s, " \"name\": \"%s\",", args->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: + args->data = s; + args->data_len = vec_len (s); + args->free_vec_data = 1; + vec_free (sw_if_indices); + vec_free (stats); + return HSS_URL_HANDLER_OK; +} + +hss_url_handler_rc_t +handle_get_interface_list (hss_url_handler_args_t *args) +{ + 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); + + args->data = s; + args->data_len = vec_len (s); + args->free_vec_data = 1; + return HSS_URL_HANDLER_OK; +} + +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: + */ |