diff options
Diffstat (limited to 'src/vnet/vxlan/vxlan_api.c')
| -rw-r--r-- | src/vnet/vxlan/vxlan_api.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/src/vnet/vxlan/vxlan_api.c b/src/vnet/vxlan/vxlan_api.c new file mode 100644 index 00000000000..6c9cbd79764 --- /dev/null +++ b/src/vnet/vxlan/vxlan_api.c @@ -0,0 +1,253 @@ +/* + *------------------------------------------------------------------ + * 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/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) + +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); + + if (mp->is_ipv6) + { + /* not yet implemented */ + } + else + vnet_feature_enable_disable ("ip4-unicast", "ip4-vxlan-bypass", + sw_if_index, mp->enable, 0, 0); + + 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; + vnet_vxlan_add_del_tunnel_args_t _a, *a = &_a; + u32 encap_fib_index; + uword *p; + ip4_main_t *im = &ip4_main; + vnet_main_t *vnm = vnet_get_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]; + memset (a, 0, sizeof (*a)); + + a->is_add = mp->is_add; + a->is_ip6 = mp->is_ipv6; + + /* ip addresses sent in network byte order */ + ip46_from_addr_buf (mp->is_ipv6, mp->dst_address, &a->dst); + ip46_from_addr_buf (mp->is_ipv6, mp->src_address, &a->src); + + /* Check src & dst are different */ + if (ip46_address_cmp (&a->dst, &a->src) == 0) + { + rv = VNET_API_ERROR_SAME_SRC_DST; + goto out; + } + a->mcast_sw_if_index = ntohl (mp->mcast_sw_if_index); + if (ip46_address_is_multicast (&a->dst) && + pool_is_free_index (vnm->interface_main.sw_interfaces, + a->mcast_sw_if_index)) + { + rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; + goto out; + } + a->encap_fib_index = encap_fib_index; + a->decap_next_index = ntohl (mp->decap_next_index); + a->vni = ntohl (mp->vni); + 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, unix_shared_memory_queue_t * q, u32 context) +{ + vl_api_vxlan_tunnel_details_t *rmp; + ip4_main_t *im4 = &ip4_main; + ip6_main_t *im6 = &ip6_main; + u8 is_ipv6 = !ip46_address_is_ip4 (&t->dst); + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_VXLAN_TUNNEL_DETAILS); + if (is_ipv6) + { + memcpy (rmp->src_address, t->src.ip6.as_u8, 16); + memcpy (rmp->dst_address, t->dst.ip6.as_u8, 16); + rmp->encap_vrf_id = htonl (im6->fibs[t->encap_fib_index].ft_table_id); + } + else + { + memcpy (rmp->src_address, t->src.ip4.as_u8, 4); + memcpy (rmp->dst_address, t->dst.ip4.as_u8, 4); + rmp->encap_vrf_id = htonl (im4->fibs[t->encap_fib_index].ft_table_id); + } + 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->is_ipv6 = is_ipv6; + rmp->context = context; + + vl_msg_api_send_shmem (q, (u8 *) & rmp); +} + +static void vl_api_vxlan_tunnel_dump_t_handler + (vl_api_vxlan_tunnel_dump_t * mp) +{ + unix_shared_memory_queue_t *q; + vxlan_main_t *vxm = &vxlan_main; + vxlan_tunnel_t *t; + u32 sw_if_index; + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + { + 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, q, 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, q, mp->context); + } +} + +/* + * vpe_api_hookup + * Add vpe's API message handlers to the table. + * vlib has alread 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 = &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 _ + + 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: + */ |