src/plugins/ioam/lib-pot/pot_api.c

   1 /*
   2  * Copyright (c) 2016 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 /*
  16  *------------------------------------------------------------------
  17  * pot_api.c - Proof of Transit related APIs to create
  18  *             and maintain profiles
  19  *------------------------------------------------------------------
  20  */
  21
  22 #include <vnet/vnet.h>
  23 #include <vnet/plugin/plugin.h>
  24 #include <ioam/lib-pot/pot_util.h>
  25
  26 #include <vlibapi/api.h>
  27 #include <vlibmemory/api.h>
  28
  29 /* define message IDs */
  30 #include <ioam/lib-pot/pot.api_enum.h>
  31 #include <ioam/lib-pot/pot.api_types.h>
  32
  33 #define REPLY_MSG_ID_BASE sm->msg_id_base
  34 #include <vlibapi/api_helper_macros.h>
  35
  36 static void vl_api_pot_profile_add_t_handler
  37 (vl_api_pot_profile_add_t *mp)
  38 {
  39     pot_main_t * sm = &pot_main;
  40     int rv = 0;
  41     vl_api_pot_profile_add_reply_t * rmp;
  42     u8 id;
  43     pot_profile *profile = NULL;
  44     u8 *name = 0;
  45
  46     if (mp->list_name_len)
  47         name = format(0, "%s", mp->list_name);
  48
  49     pot_profile_list_init(name);
  50     id = mp->id;
  51     profile = pot_profile_find(id);
  52     if (profile) {
  53         rv = pot_profile_create(profile,
  54                                 clib_net_to_host_u64(mp->prime),
  55                                 clib_net_to_host_u64(mp->polynomial_public),
  56                                 clib_net_to_host_u64(mp->lpc),
  57                                 clib_net_to_host_u64(mp->secret_share));
  58         if (rv != 0)
  59             goto ERROROUT;
  60         if (1 == mp->validator)
  61           (void)pot_set_validator(profile, clib_net_to_host_u64(mp->secret_key));
  62         (void)pot_profile_set_bit_mask(profile, mp->max_bits);
  63     } else {
  64         rv = -3;
  65     }
  66  ERROROUT:
  67     vec_free(name);
  68     REPLY_MACRO(VL_API_POT_PROFILE_ADD_REPLY);
  69 }
  70
  71 static void send_pot_profile_details(vl_api_pot_profile_show_config_dump_t *mp, u8 id)
  72 {
  73     vl_api_pot_profile_show_config_details_t * rmp;
  74     pot_main_t * sm = &pot_main;
  75     pot_profile *profile = pot_profile_find(id);
  76     int rv = 0;
  77     if(profile){
  78         REPLY_MACRO2(VL_API_POT_PROFILE_SHOW_CONFIG_DETAILS,
  79                         rmp->id=id;
  80                         rmp->validator=profile->validator;
  81                         rmp->secret_key=clib_host_to_net_u64(profile->secret_key);
  82                         rmp->secret_share=clib_host_to_net_u64(profile->secret_share);
  83                         rmp->prime=clib_host_to_net_u64(profile->prime);
  84                         rmp->bit_mask=clib_host_to_net_u64(profile->bit_mask);
  85                         rmp->lpc=clib_host_to_net_u64(profile->lpc);
  86                         rmp->polynomial_public=clib_host_to_net_u64(profile->poly_pre_eval);
  87                         );
  88     }
  89     else{
  90         REPLY_MACRO2(VL_API_POT_PROFILE_SHOW_CONFIG_DETAILS,
  91                         rmp->id=id;
  92                         rmp->validator=0;
  93                         rmp->secret_key=0;
  94                         rmp->secret_share=0;
  95                         rmp->prime=0;
  96                         rmp->bit_mask=0;
  97                         rmp->lpc=0;
  98                         rmp->polynomial_public=0;
  99                         );
 100     }
 101 }
 102
 103 static void vl_api_pot_profile_show_config_dump_t_handler
 104 (vl_api_pot_profile_show_config_dump_t *mp)
 105 {
 106     u8 id = mp->id;
 107     u8 dump_call_id = ~0;
 108     if(dump_call_id==id){
 109         for(id=0;id<MAX_POT_PROFILES;id++)
 110             send_pot_profile_details(mp,id);
 111     }
 112     else
 113         send_pot_profile_details(mp,id);
 114 }
 115
 116 static void vl_api_pot_profile_activate_t_handler
 117 (vl_api_pot_profile_activate_t *mp)
 118 {
 119     pot_main_t * sm = &pot_main;
 120     int rv = 0;
 121     vl_api_pot_profile_add_reply_t * rmp;
 122     u8 id;
 123     u8 *name = NULL;
 124
 125     if (mp->list_name_len)
 126         name = format(0, "%s", mp->list_name);
 127     if (!pot_profile_list_is_enabled(name)) {
 128         rv = -1;
 129     } else {
 130         id = mp->id;
 131         rv = pot_profile_set_active(id);
 132     }
 133
 134     vec_free(name);
 135     REPLY_MACRO(VL_API_POT_PROFILE_ACTIVATE_REPLY);
 136 }
 137
 138
 139 static void vl_api_pot_profile_del_t_handler
 140 (vl_api_pot_profile_del_t *mp)
 141 {
 142     pot_main_t * sm = &pot_main;
 143     int rv = 0;
 144     vl_api_pot_profile_del_reply_t * rmp;
 145
 146     clear_pot_profiles();
 147
 148     REPLY_MACRO(VL_API_POT_PROFILE_DEL_REPLY);
 149 }
 150
 151 #include <ioam/lib-pot/pot.api.c>
 152 static clib_error_t * pot_init (vlib_main_t * vm)
 153 {
 154   pot_main_t * sm = &pot_main;
 155
 156   bzero(sm, sizeof(pot_main));
 157   (void)pot_util_init();
 158
 159   sm->vlib_main = vm;
 160   sm->vnet_main = vnet_get_main();
 161
 162   /* Ask for a correctly-sized block of API message decode slots */
 163   sm->msg_id_base = setup_message_id_table ();
 164
 165   return 0;
 166 }
 167
 168 VLIB_INIT_FUNCTION (pot_init);