diff options
Diffstat (limited to 'src/plugins/geneve/geneve_api.c')
| -rw-r--r-- | src/plugins/geneve/geneve_api.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/src/plugins/geneve/geneve_api.c b/src/plugins/geneve/geneve_api.c new file mode 100644 index 00000000000..f6b9afda7d5 --- /dev/null +++ b/src/plugins/geneve/geneve_api.c @@ -0,0 +1,265 @@ +/* + * Copyright (c) 2017 SUSE LLC. + * 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/fib/fib_table.h> +#include <vnet/ip/ip_types_api.h> + +#include <geneve/geneve.h> + +/* define message IDs */ +#include <vnet/format_fns.h> +#include <geneve/geneve.api_enum.h> +#include <geneve/geneve.api_types.h> + +/** + * Base message ID fot the plugin + */ +static u32 geneve_base_msg_id; +#define REPLY_MSG_ID_BASE geneve_base_msg_id + +#include <vlibapi/api_helper_macros.h> + +static void + vl_api_sw_interface_set_geneve_bypass_t_handler + (vl_api_sw_interface_set_geneve_bypass_t * mp) +{ + vl_api_sw_interface_set_geneve_bypass_reply_t *rmp; + int rv = 0; + u32 sw_if_index = ntohl (mp->sw_if_index); + + VALIDATE_SW_IF_INDEX (mp); + + vnet_int_geneve_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable); + BAD_SW_IF_INDEX_LABEL; + + REPLY_MACRO (VL_API_SW_INTERFACE_SET_GENEVE_BYPASS_REPLY); +} + +static void vl_api_geneve_add_del_tunnel_t_handler + (vl_api_geneve_add_del_tunnel_t * mp) +{ + vl_api_geneve_add_del_tunnel_reply_t *rmp; + int rv = 0; + ip4_main_t *im = &ip4_main; + + uword *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; + } + + vnet_geneve_add_del_tunnel_args_t a = { + .is_add = mp->is_add, + .is_ip6 = mp->remote_address.af, + .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index), + .encap_fib_index = p[0], + .decap_next_index = ntohl (mp->decap_next_index), + .vni = ntohl (mp->vni), + }; + + ip_address_decode (&mp->remote_address, &a.remote); + ip_address_decode (&mp->local_address, &a.local); + + /* Check src & dst are different */ + if (ip46_address_cmp (&a.remote, &a.local) == 0) + { + rv = VNET_API_ERROR_SAME_SRC_DST; + goto out; + } + if (ip46_address_is_multicast (&a.remote) && + !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_geneve_add_del_tunnel (&a, &sw_if_index); + +out: + /* *INDENT-OFF* */ + REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL_REPLY, + ({ + rmp->sw_if_index = ntohl (sw_if_index); + })); + /* *INDENT-ON* */ +} + +static void vl_api_geneve_add_del_tunnel2_t_handler + (vl_api_geneve_add_del_tunnel2_t * mp) +{ + vl_api_geneve_add_del_tunnel2_reply_t *rmp; + int rv = 0; + ip4_main_t *im = &ip4_main; + + uword *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; + } + + vnet_geneve_add_del_tunnel_args_t a = { + .is_add = mp->is_add, + .is_ip6 = mp->remote_address.af, + .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index), + .encap_fib_index = p[0], + .decap_next_index = ntohl (mp->decap_next_index), + .vni = ntohl (mp->vni), + .l3_mode = mp->l3_mode, + }; + + ip_address_decode (&mp->remote_address, &a.remote); + ip_address_decode (&mp->local_address, &a.local); + + /* Check src & dst are different */ + if (ip46_address_cmp (&a.remote, &a.local) == 0) + { + rv = VNET_API_ERROR_SAME_SRC_DST; + goto out; + } + if (ip46_address_is_multicast (&a.remote) && + !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_geneve_add_del_tunnel (&a, &sw_if_index); + +out: + /* *INDENT-OFF* */ + REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL2_REPLY, + ({ + rmp->sw_if_index = ntohl (sw_if_index); + })); + /* *INDENT-ON* */ +} + +static void send_geneve_tunnel_details + (geneve_tunnel_t * t, vl_api_registration_t * reg, u32 context) +{ + vl_api_geneve_tunnel_details_t *rmp; + ip4_main_t *im4 = &ip4_main; + ip6_main_t *im6 = &ip6_main; + u8 is_ipv6 = !ip46_address_is_ip4 (&t->remote); + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + clib_memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_GENEVE_TUNNEL_DETAILS + REPLY_MSG_ID_BASE); + ip_address_encode (&t->local, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4, + &rmp->src_address); + ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4, + &rmp->dst_address); + rmp->encap_vrf_id = + htonl (is_ipv6 ? im6->fibs[t->encap_fib_index]. + ft_table_id : 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->context = context; + + vl_api_send_msg (reg, (u8 *) rmp); +} + +static void vl_api_geneve_tunnel_dump_t_handler + (vl_api_geneve_tunnel_dump_t * mp) +{ + vl_api_registration_t *reg; + geneve_main_t *vxm = &geneve_main; + geneve_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_geneve_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_geneve_tunnel_details (t, reg, mp->context); + } +} + +/* + * geneve_api_hookup + * Add geneve's API message handlers to the table. + */ +/* API definitions */ +#include <vnet/format_fns.h> +#include <geneve/geneve.api.c> + +static clib_error_t * +geneve_api_hookup (vlib_main_t * vm) +{ + api_main_t *am = vlibapi_get_main (); + + /* + * Set up the (msg_name, crc, message-id) table + */ + geneve_base_msg_id = setup_message_id_table (); + + am->api_trace_cfg[VL_API_GENEVE_ADD_DEL_TUNNEL + REPLY_MSG_ID_BASE].size += + 16 * sizeof (u32); + + return 0; +} + +VLIB_API_INIT_FUNCTION (geneve_api_hookup); + +#include <vlib/unix/plugin.h> +#include <vpp/app/version.h> + +/* *INDENT-OFF* */ +VLIB_PLUGIN_REGISTER () = { + .version = VPP_BUILD_VER, + .description = "GENEVE Tunnels", +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |