/* *------------------------------------------------------------------ * vxlan_gpe_api.c - vxlan_gpe api * * Copyright (c) 2016 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 <vnet/vnet.h> #include <vlibmemory/api.h> #include <vnet/interface.h> #include <vnet/api_errno.h> #include <vnet/feature/feature.h> #include <vnet/vxlan-gpe/vxlan_gpe.h> #include <vnet/fib/fib_table.h> #include <vnet/ip/ip_types_api.h> #include <vnet/vnet_msg_enum.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 \ _(SW_INTERFACE_SET_VXLAN_GPE_BYPASS, sw_interface_set_vxlan_gpe_bypass) \ _(VXLAN_GPE_ADD_DEL_TUNNEL, vxlan_gpe_add_del_tunnel) \ _(VXLAN_GPE_TUNNEL_DUMP, vxlan_gpe_tunnel_dump) static void vl_api_sw_interface_set_vxlan_gpe_bypass_t_handler (vl_api_sw_interface_set_vxlan_gpe_bypass_t * mp) { vl_api_sw_interface_set_vxlan_gpe_bypass_reply_t *rmp; int rv = 0; u32 sw_if_index = ntohl (mp->sw_if_index); VALIDATE_SW_IF_INDEX (mp); vnet_int_vxlan_gpe_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_GPE_BYPASS_REPLY); } static void vl_api_vxlan_gpe_add_del_tunnel_t_handler (vl_api_vxlan_gpe_add_del_tunnel_t * mp) { vl_api_vxlan_gpe_add_del_tunnel_reply_t *rmp; int rv = 0; vnet_vxlan_gpe_add_del_tunnel_args_t _a, *a = &_a; u32 encap_fib_index, decap_fib_index; u8 protocol; uword *p; ip4_main_t *im = &ip4_main; u32 sw_if_index = ~0; p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id)); if (!p) { rv = VNET_API_ERROR_NO_SUCH_FIB; goto out; } encap_fib_index = p[0]; protocol = mp->protocol; /* Interpret decap_vrf_id as an opaque if sending to other-than-ip4-input */ if (protocol == VXLAN_GPE_INPUT_NEXT_IP4_INPUT) { p = hash_get (im->fib_index_by_table_id, ntohl (mp->decap_vrf_id)); if (!p) { rv = VNET_API_ERROR_NO_SUCH_INNER_FIB; goto out; } decap_fib_index = p[0]; } else { decap_fib_index = ntohl (mp->decap_vrf_id); } clib_memset (a, 0, sizeof (*a)); a->is_add = mp->is_add; ip_address_decode (&mp->local, &a->local); ip_address_decode (&mp->remote, &a->remote); /* Check src & dst are different */ if (ip46_address_is_equal (&a->local, &a->remote)) { rv = VNET_API_ERROR_SAME_SRC_DST; goto out; } a->is_ip6 = !ip46_address_is_ip4 (&a->local); a->mcast_sw_if_index = ntohl (mp->mcast_sw_if_index); a->encap_fib_index = encap_fib_index; a->decap_fib_index = decap_fib_index; a->protocol = protocol; a->vni = ntohl (mp->vni); rv = vnet_vxlan_gpe_add_del_tunnel (a, &sw_if_index); out: /* *INDENT-OFF* */ REPLY_MACRO2(VL_API_VXLAN_GPE_ADD_DEL_TUNNEL_REPLY, ({ rmp->sw_if_index = ntohl (sw_if_index); })); /* *INDENT-ON* */ } static void send_vxlan_gpe_tunnel_details (vxlan_gpe_tunnel_t * t, vl_api_registration_t * reg, u32 context) { vl_api_vxlan_gpe_tunnel_details_t *rmp; ip4_main_t *im4 = &ip4_main; ip6_main_t *im6 = &ip6_main; u8 is_ipv6 = !(t->flags & VXLAN_GPE_TUNNEL_IS_IPV4); rmp = vl_msg_api_alloc (sizeof (*rmp)); clib_memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = ntohs (VL_API_VXLAN_GPE_TUNNEL_DETAILS); ip_address_encode (&t->local, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4, &rmp->local); ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4, &rmp->remote); if (ip46_address_is_ip4 (&t->local)) { rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id); rmp->decap_vrf_id = htonl (im4->fibs[t->decap_fib_index].ft_table_id); } else { rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id); rmp->decap_vrf_id = htonl (im6->fibs[t->decap_fib_index].ft_table_id); } rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index); rmp->vni = htonl (t->vni); rmp->protocol = t->protocol; rmp->sw_if_index = htonl (t->sw_if_index); rmp->context = context; vl_api_send_msg (reg, (u8 *) rmp); } static void vl_api_vxlan_gpe_tunnel_dump_t_handler (vl_api_vxlan_gpe_tunnel_dump_t * mp) { vl_api_registration_t *reg; vxlan_gpe_main_t *vgm = &vxlan_gpe_main; vxlan_gpe_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 (~0 == sw_if_index) { /* *INDENT-OFF* */ pool_foreach (t, vgm->tunnels) { send_vxlan_gpe_tunnel_details(t, reg, mp->context); } /* *INDENT-ON* */ } else { if ((sw_if_index >= vec_len (vgm->tunnel_index_by_sw_if_index)) || (~0 == vgm->tunnel_index_by_sw_if_index[sw_if_index])) { return; } t = &vgm->tunnels[vgm->tunnel_index_by_sw_if_index[sw_if_index]]; send_vxlan_gpe_tunnel_details (t, reg, mp->context); } } /* * vpe_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_vxlan_gpe; #undef _ } static clib_error_t * vxlan_gpe_api_hookup (vlib_main_t * vm) { api_main_t *am = vlibapi_get_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 _ am->api_trace_cfg[VL_API_VXLAN_GPE_ADD_DEL_TUNNEL].size += 17 * sizeof (u32); /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (am); return 0; } VLIB_API_INIT_FUNCTION (vxlan_gpe_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */