/* * ipip_api.c - ipip api * * Copyright (c) 2018 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 <vlibmemory/api.h> #include <vnet/api_errno.h> #include <vnet/fib/fib_table.h> #include <vnet/interface.h> #include <vnet/ipip/ipip.h> #include <vnet/vnet.h> #include <vnet/vnet_msg_enum.h> #include <vnet/ip/ip_types_api.h> #define vl_typedefs /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_typedefs #define vl_endianfun /* define message structures */ #include <vnet/vnet_all_api_h.h> #undef vl_endianfun /* instantiate all the print functions we know about */ #define vl_print(handle, ...) vlib_cli_output(handle, __VA_ARGS__) #define vl_printfun #include <vnet/vnet_all_api_h.h> #undef vl_printfun #include <vlibapi/api_helper_macros.h> #define foreach_vpe_api_msg \ _(IPIP_ADD_TUNNEL, ipip_add_tunnel) \ _(IPIP_DEL_TUNNEL, ipip_del_tunnel) \ _(IPIP_6RD_ADD_TUNNEL, ipip_6rd_add_tunnel) \ _(IPIP_6RD_DEL_TUNNEL, ipip_6rd_del_tunnel) \ _(IPIP_TUNNEL_DUMP, ipip_tunnel_dump) static void vl_api_ipip_add_tunnel_t_handler (vl_api_ipip_add_tunnel_t * mp) { vl_api_ipip_add_tunnel_reply_t *rmp; int rv = 0; u32 fib_index, sw_if_index = ~0; ip46_address_t src, dst; ip46_type_t itype[2]; itype[0] = ip_address_decode (&mp->tunnel.src, &src); itype[1] = ip_address_decode (&mp->tunnel.dst, &dst); if (itype[0] != itype[1]) { rv = VNET_API_ERROR_INVALID_PROTOCOL; goto out; } if (ip46_address_is_equal (&src, &dst)) { rv = VNET_API_ERROR_SAME_SRC_DST; goto out; } fib_index = fib_table_find (fib_proto_from_ip46 (itype[0]), ntohl (mp->tunnel.table_id)); if (~0 == fib_index) { rv = VNET_API_ERROR_NO_SUCH_FIB; } else { rv = ipip_add_tunnel ((itype[0] == IP46_TYPE_IP6 ? IPIP_TRANSPORT_IP6 : IPIP_TRANSPORT_IP4), ntohl (mp->tunnel.instance), &src, &dst, fib_index, mp->tunnel.tc_tos, &sw_if_index); } out: /* *INDENT-OFF* */ REPLY_MACRO2(VL_API_IPIP_ADD_TUNNEL_REPLY, ({ rmp->sw_if_index = ntohl(sw_if_index); })); /* *INDENT-ON* */ } static void vl_api_ipip_del_tunnel_t_handler (vl_api_ipip_del_tunnel_t * mp) { vl_api_ipip_del_tunnel_reply_t *rmp; int rv = ipip_del_tunnel (ntohl (mp->sw_if_index)); REPLY_MACRO (VL_API_IPIP_DEL_TUNNEL_REPLY); } static void send_ipip_tunnel_details (ipip_tunnel_t * t, vl_api_registration_t * reg, u32 context) { vl_api_ipip_tunnel_details_t *rmp; bool is_ipv6 = t->transport == IPIP_TRANSPORT_IP6 ? true : false; fib_table_t *ft; rmp = vl_msg_api_alloc (sizeof (*rmp)); clib_memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = htons (VL_API_IPIP_TUNNEL_DETAILS); ip_address_encode (&t->tunnel_src, IP46_TYPE_ANY, &rmp->tunnel.src); ip_address_encode (&t->tunnel_dst, IP46_TYPE_ANY, &rmp->tunnel.dst); ft = fib_table_get (t->fib_index, (is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4)); rmp->tunnel.table_id = htonl (ft->ft_table_id); rmp->tunnel.instance = htonl (t->user_instance); rmp->tunnel.sw_if_index = htonl (t->sw_if_index); rmp->context = context; vl_api_send_msg (reg, (u8 *) rmp); } static void vl_api_ipip_tunnel_dump_t_handler (vl_api_ipip_tunnel_dump_t * mp) { vl_api_registration_t *reg; ipip_main_t *gm = &ipip_main; ipip_tunnel_t *t; u32 sw_if_index; reg = vl_api_client_index_to_registration (mp->client_index); if (!reg) return; sw_if_index = ntohl (mp->sw_if_index); if (sw_if_index == ~0) { /* *INDENT-OFF* */ pool_foreach(t, gm->tunnels, ({ send_ipip_tunnel_details(t, reg, mp->context); })); /* *INDENT-ON* */ } else { t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index); if (t) send_ipip_tunnel_details (t, reg, mp->context); } } static void vl_api_ipip_6rd_add_tunnel_t_handler (vl_api_ipip_6rd_add_tunnel_t * mp) { vl_api_ipip_6rd_add_tunnel_reply_t *rmp; u32 sixrd_tunnel_index, ip4_fib_index, ip6_fib_index; int rv; ip4_fib_index = fib_table_find (FIB_PROTOCOL_IP4, ntohl (mp->ip4_table_id)); ip6_fib_index = fib_table_find (FIB_PROTOCOL_IP6, ntohl (mp->ip6_table_id)); if (~0 == ip4_fib_index || ~0 == ip6_fib_index) { rv = VNET_API_ERROR_NO_SUCH_FIB; } else { rv = sixrd_add_tunnel ((ip6_address_t *) & mp->ip6_prefix.address, mp->ip6_prefix.len, (ip4_address_t *) & mp->ip4_prefix.address, mp->ip4_prefix.len, (ip4_address_t *) & mp->ip4_src, mp->security_check, ip4_fib_index, ip6_fib_index, &sixrd_tunnel_index); } /* *INDENT-OFF* */ REPLY_MACRO2 (VL_API_IPIP_6RD_ADD_TUNNEL_REPLY, ({ rmp->sw_if_index = htonl (sixrd_tunnel_index); })); /* *INDENT-ON* */ } static void vl_api_ipip_6rd_del_tunnel_t_handler (vl_api_ipip_6rd_del_tunnel_t * mp) { vl_api_ipip_6rd_del_tunnel_reply_t *rmp; int rv = sixrd_del_tunnel (ntohl (mp->sw_if_index)); REPLY_MACRO (VL_API_IPIP_6RD_DEL_TUNNEL_REPLY); } /* * ipip_api_hookup * Add vpe's API message handlers to the table. * vlib has already mapped shared memory and * added the client registration handlers. * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process() */ #define vl_msg_name_crc_list #include <vnet/vnet_all_api_h.h> #undef vl_msg_name_crc_list static void setup_message_id_table (api_main_t * am) { #define _(id, n, crc) vl_msg_api_add_msg_name_crc(am, #n "_" #crc, id); foreach_vl_msg_name_crc_ipip; #undef _ } static clib_error_t * ipip_api_hookup (vlib_main_t * vm) { api_main_t *am = &api_main; #define _(N, n) \ vl_msg_api_set_handlers(VL_API_##N, #n, vl_api_##n##_t_handler, \ vl_noop_handler, vl_api_##n##_t_endian, \ vl_api_##n##_t_print, sizeof(vl_api_##n##_t), 1); foreach_vpe_api_msg; #undef _ /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (am); return 0; } VLIB_API_INIT_FUNCTION (ipip_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */