From 8bd4db5996ba1144f659ea5341f1c2727c650bcd Mon Sep 17 00:00:00 2001 From: Steven Luong Date: Mon, 24 Oct 2022 09:10:59 -0700 Subject: vxlan: convert vxlan to a plugin per https://jira.fd.io/browse/VPP-2058 Type: improvement Signed-off-by: Steven Luong Change-Id: Ica0828de218d25ada2d0d1491e373c3b78179ac1 --- src/plugins/vxlan/vxlan_api.c | 376 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 376 insertions(+) create mode 100644 src/plugins/vxlan/vxlan_api.c (limited to 'src/plugins/vxlan/vxlan_api.c') diff --git a/src/plugins/vxlan/vxlan_api.c b/src/plugins/vxlan/vxlan_api.c new file mode 100644 index 00000000000..8fd0928cc63 --- /dev/null +++ b/src/plugins/vxlan/vxlan_api.c @@ -0,0 +1,376 @@ +/* + *------------------------------------------------------------------ + * 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 +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static u16 msg_id_base; + +#define REPLY_MSG_ID_BASE msg_id_base +#include + +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 int +vxlan_add_del_tunnel_clean_input (vnet_vxlan_add_del_tunnel_args_t *a, + u32 encap_vrf_id) +{ + a->is_ip6 = !ip46_address_is_ip4 (&a->src); + + a->encap_fib_index = fib_table_find (fib_ip_proto (a->is_ip6), encap_vrf_id); + if (a->encap_fib_index == ~0) + { + return VNET_API_ERROR_NO_SUCH_FIB; + } + + if (ip46_address_is_ip4 (&a->src) != ip46_address_is_ip4 (&a->dst)) + { + return VNET_API_ERROR_INVALID_VALUE; + } + + /* Check src & dst are different */ + if (ip46_address_cmp (&a->dst, &a->src) == 0) + { + return VNET_API_ERROR_SAME_SRC_DST; + } + if (ip46_address_is_multicast (&a->dst) && + !vnet_sw_if_index_is_api_valid (a->mcast_sw_if_index)) + { + return VNET_API_ERROR_INVALID_SW_IF_INDEX; + } + return 0; +} + +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; + u32 sw_if_index = ~0; + int rv = 0; + + vnet_vxlan_add_del_tunnel_args_t a = { + .is_add = mp->is_add, + .instance = ntohl (mp->instance), + .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index), + .decap_next_index = ntohl (mp->decap_next_index), + .vni = ntohl (mp->vni), + }; + ip_address_decode (&mp->src_address, &a.src); + ip_address_decode (&mp->dst_address, &a.dst); + + rv = vxlan_add_del_tunnel_clean_input (&a, ntohl (mp->encap_vrf_id)); + if (rv) + goto out; + a.dst_port = a.is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan, + a.src_port = a.is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan, + rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index); + +out: + REPLY_MACRO2(VL_API_VXLAN_ADD_DEL_TUNNEL_REPLY, + ({ + rmp->sw_if_index = ntohl (sw_if_index); + })); +} + +static void +vl_api_vxlan_add_del_tunnel_v2_t_handler (vl_api_vxlan_add_del_tunnel_v2_t *mp) +{ + vl_api_vxlan_add_del_tunnel_v2_reply_t *rmp; + u32 sw_if_index = ~0; + int rv = 0; + + vnet_vxlan_add_del_tunnel_args_t a = { + .is_add = mp->is_add, + .instance = ntohl (mp->instance), + .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index), + .decap_next_index = ntohl (mp->decap_next_index), + .vni = ntohl (mp->vni), + .dst_port = ntohs (mp->dst_port), + .src_port = ntohs (mp->src_port), + }; + + ip_address_decode (&mp->src_address, &a.src); + ip_address_decode (&mp->dst_address, &a.dst); + + rv = vxlan_add_del_tunnel_clean_input (&a, ntohl (mp->encap_vrf_id)); + if (rv) + goto out; + rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index); +out: + REPLY_MACRO2 (VL_API_VXLAN_ADD_DEL_TUNNEL_V2_REPLY, + ({ rmp->sw_if_index = ntohl (sw_if_index); })); +} + +static void +vl_api_vxlan_add_del_tunnel_v3_t_handler (vl_api_vxlan_add_del_tunnel_v3_t *mp) +{ + vl_api_vxlan_add_del_tunnel_v3_reply_t *rmp; + u32 sw_if_index = ~0; + int rv = 0; + + vnet_vxlan_add_del_tunnel_args_t a = { + .is_add = mp->is_add, + .instance = ntohl (mp->instance), + .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index), + .decap_next_index = ntohl (mp->decap_next_index), + .vni = ntohl (mp->vni), + .dst_port = ntohs (mp->dst_port), + .src_port = ntohs (mp->src_port), + .is_l3 = mp->is_l3, + }; + + ip_address_decode (&mp->src_address, &a.src); + ip_address_decode (&mp->dst_address, &a.dst); + + rv = vxlan_add_del_tunnel_clean_input (&a, ntohl (mp->encap_vrf_id)); + if (rv) + goto out; + rv = vnet_vxlan_add_del_tunnel (&a, &sw_if_index); +out: + REPLY_MACRO2 (VL_API_VXLAN_ADD_DEL_TUNNEL_V3_REPLY, + ({ rmp->sw_if_index = ntohl (sw_if_index); })); +} + +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 (REPLY_MSG_ID_BASE + 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) + { + pool_foreach (t, vxm->tunnels) + send_vxlan_tunnel_details(t, reg, mp->context); + } + 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); + } +} + +static void +send_vxlan_tunnel_v2_details (vxlan_tunnel_t *t, vl_api_registration_t *reg, + u32 context) +{ + vl_api_vxlan_tunnel_v2_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 (REPLY_MSG_ID_BASE + VL_API_VXLAN_TUNNEL_V2_DETAILS); + + ip_address_encode (&t->src, IP46_TYPE_ANY, &rmp->src_address); + ip_address_encode (&t->dst, IP46_TYPE_ANY, &rmp->dst_address); + rmp->src_port = htons (t->src_port); + rmp->dst_port = htons (t->dst_port); + + 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_v2_dump_t_handler (vl_api_vxlan_tunnel_v2_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) + { + pool_foreach (t, vxm->tunnels) + send_vxlan_tunnel_v2_details (t, reg, mp->context); + } + 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_v2_details (t, reg, mp->context); + } +} + +#include +static clib_error_t * +vxlan_api_hookup (vlib_main_t * vm) +{ + api_main_t *am = vlibapi_get_main (); + + vl_api_increase_msg_trace_size (am, VL_API_VXLAN_ADD_DEL_TUNNEL, + 16 * sizeof (u32)); + + /* + * Set up the (msg_name, crc, message-id) table + */ + msg_id_base = setup_message_id_table (); + + return 0; +} + +VLIB_API_INIT_FUNCTION (vxlan_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg