/* *------------------------------------------------------------------ * vxlan_api.c - vxlan 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/vxlan.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_BYPASS, sw_interface_set_vxlan_bypass) \ _(VXLAN_ADD_DEL_TUNNEL, vxlan_add_del_tunnel) \ _(VXLAN_TUNNEL_DUMP, vxlan_tunnel_dump) \ _(VXLAN_OFFLOAD_RX, vxlan_offload_rx) static void vl_api_vxlan_offload_rx_t_handler (vl_api_vxlan_offload_rx_t * mp) { vl_api_vxlan_offload_rx_reply_t *rmp; int rv = 0; u32 hw_if_index = ntohl (mp->hw_if_index); u32 sw_if_index = ntohl (mp->sw_if_index); if (!vnet_hw_interface_is_valid (vnet_get_main (), hw_if_index)) { rv = VNET_API_ERROR_NO_SUCH_ENTRY; goto err; } VALIDATE_SW_IF_INDEX (mp); u32 t_index = vnet_vxlan_get_tunnel_index (sw_if_index); if (t_index == ~0) { rv = VNET_API_ERROR_INVALID_SW_IF_INDEX_2; goto err; } vxlan_main_t *vxm = &vxlan_main; vxlan_tunnel_t *t = pool_elt_at_index (vxm->tunnels, t_index); if (!ip46_address_is_ip4 (&t->dst)) { rv = VNET_API_ERROR_INVALID_ADDRESS_FAMILY; goto err; } vnet_main_t *vnm = vnet_get_main (); vnet_hw_interface_t *hw_if = vnet_get_hw_interface (vnm, hw_if_index); ip4_main_t *im = &ip4_main; u32 rx_fib_index = vec_elt (im->fib_index_by_sw_if_index, hw_if->sw_if_index); if (t->encap_fib_index != rx_fib_index) { rv = VNET_API_ERROR_NO_SUCH_FIB; goto err; } if (vnet_vxlan_add_del_rx_flow (hw_if_index, t_index, mp->enable)) { rv = VNET_API_ERROR_UNSPECIFIED; goto err; } BAD_SW_IF_INDEX_LABEL; err: REPLY_MACRO (VL_API_VXLAN_OFFLOAD_RX_REPLY); } static void vl_api_sw_interface_set_vxlan_bypass_t_handler (vl_api_sw_interface_set_vxlan_bypass_t * mp) { vl_api_sw_interface_set_vxlan_bypass_reply_t *rmp; int rv = 0; u32 sw_if_index = ntohl (mp->sw_if_index); VALIDATE_SW_IF_INDEX (mp); vnet_int_vxlan_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable); BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_BYPASS_REPLY); } static void vl_api_vxlan_add_del_tunnel_t_handler (vl_api_vxlan_add_del_tunnel_t * mp) { vl_api_vxlan_add_del_tunnel_reply_t *rmp; int rv = 0; bool is_ipv6; u32 fib_index; ip46_address_t src, dst; ip_address_decode (&mp->src_address, &src); ip_address_decode (&mp->dst_address, &dst); if (ip46_address_is_ip4 (&src) != ip46_address_is_ip4 (&dst)) { rv = VNET_API_ERROR_INVALID_VALUE; goto out; } is_ipv6 = !ip46_address_is_ip4 (&src); fib_index = fib_table_find (fib_ip_proto (is_ipv6), ntohl (mp->encap_vrf_id)); if (fib_index == ~0) { rv = VNET_API_ERROR_NO_SUCH_FIB; goto out; } vnet_vxlan_add_del_tunnel_args_t a = { .is_add = mp->is_add, .is_ip6 = is_ipv6, .instance = ntohl (mp->instance), .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index), .encap_fib_index = fib_index, .decap_next_index = ntohl (mp->decap_next_index), .vni = ntohl (mp->vni), .dst = dst, .src = src, }; /* Check src & dst are different */ if (ip46_address_cmp (&a.dst, &a.src) == 0) { rv = VNET_API_ERROR_SAME_SRC_DST; goto out; } if (ip46_address_is_multicast (&a.dst) && !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index)) { rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; goto out; } u32 sw_if_index = ~0; rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index); out: /* *INDENT-OFF* */ REPLY_MACRO2(VL_API_VXLAN_ADD_DEL_TUNNEL_REPLY, ({ rmp->sw_if_index = ntohl (sw_if_index); })); /* *INDENT-ON* */ } static void send_vxlan_tunnel_details (vxlan_tunnel_t * t, vl_api_registration_t * reg, u32 context) { vl_api_vxlan_tunnel_details_t *rmp; ip4_main_t *im4 = &ip4_main; ip6_main_t *im6 = &ip6_main; rmp = vl_msg_api_alloc (sizeof (*rmp)); clib_memset (rmp, 0, sizeof (*rmp)); rmp->_vl_msg_id = ntohs (VL_API_VXLAN_TUNNEL_DETAILS); ip_address_encode (&t->src, IP46_TYPE_ANY, &rmp->src_address); ip_address_encode (&t->dst, IP46_TYPE_ANY, &rmp->dst_address); if (ip46_address_is_ip4 (&t->dst)) rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id); else rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id); rmp->instance = htonl (t->user_instance); rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index); rmp->vni = htonl (t->vni); rmp->decap_next_index = htonl (t->decap_next_index); rmp->sw_if_index = htonl (t->sw_if_index); rmp->context = context; vl_api_send_msg (reg, (u8 *) rmp); } static void vl_api_vxlan_tunnel_dump_t_handler (vl_api_vxlan_tunnel_dump_t * mp) { vl_api_registration_t *reg; vxlan_main_t *vxm = &vxlan_main; vxlan_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, vxm->tunnels, ({ send_vxlan_tunnel_details(t, reg, mp->context); })); /* *INDENT-ON* */ } else { if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) || (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index])) { return; } t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]]; send_vxlan_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; #undef _ } static clib_error_t * vxlan_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_ADD_DEL_TUNNEL].size += 16 * sizeof (u32); /* * Set up the (msg_name, crc, message-id) table */ setup_message_id_table (am); return 0; } VLIB_API_INIT_FUNCTION (vxlan_api_hookup); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */