diff options
Diffstat (limited to 'src/vnet/lisp-gpe/lisp_gpe_api.c')
| -rw-r--r-- | src/vnet/lisp-gpe/lisp_gpe_api.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/src/vnet/lisp-gpe/lisp_gpe_api.c b/src/vnet/lisp-gpe/lisp_gpe_api.c new file mode 100644 index 00000000000..176ded501cd --- /dev/null +++ b/src/vnet/lisp-gpe/lisp_gpe_api.c @@ -0,0 +1,304 @@ +/* + *------------------------------------------------------------------ + * lisp_gpe_api.c - lisp_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/lisp-gpe/lisp_gpe.h> +#include <vnet/lisp-gpe/lisp_gpe_fwd_entry.h> +#include <vnet/lisp-gpe/lisp_gpe_tenant.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 \ +_(LISP_GPE_ADD_DEL_FWD_ENTRY, lisp_gpe_add_del_fwd_entry) \ +_(LISP_GPE_ENABLE_DISABLE, lisp_gpe_enable_disable) \ +_(LISP_GPE_ADD_DEL_IFACE, lisp_gpe_add_del_iface) \ +_(LISP_GPE_TUNNEL_DUMP, lisp_gpe_tunnel_dump) + +/** Used for transferring locators via VPP API */ +/* *INDENT-OFF* */ +typedef CLIB_PACKED (struct { + u8 is_ip4; /**< is locator an IPv4 address */ + u8 priority; /**< locator priority */ + u8 weight; /**< locator weight */ + u8 addr[16]; /**< IPv4/IPv6 address */ +}) rloc_t; +/* *INDENT-ON* */ + +static locator_pair_t * +unformat_lisp_loc_pairs (void *lcl_locs, void *rmt_locs, u32 rloc_num) +{ + u32 i; + locator_pair_t *pairs = 0, pair; + rloc_t *r; + + for (i = 0; i < rloc_num; i++) + { + /* local locator */ + r = &((rloc_t *) lcl_locs)[i]; + memset (&pair.lcl_loc, 0, sizeof (pair.lcl_loc)); + ip_address_set (&pair.lcl_loc, &r->addr, r->is_ip4 ? IP4 : IP6); + + /* remote locators */ + r = &((rloc_t *) rmt_locs)[i]; + memset (&pair.rmt_loc, 0, sizeof (pair.rmt_loc)); + ip_address_set (&pair.rmt_loc, &r->addr, r->is_ip4 ? IP4 : IP6); + + pair.priority = r->priority; + pair.weight = r->weight; + + vec_add1 (pairs, pair); + } + return pairs; +} + +static int +unformat_lisp_eid_api (gid_address_t * dst, u32 vni, u8 type, void *src, + u8 len) +{ + switch (type) + { + case 0: /* ipv4 */ + gid_address_type (dst) = GID_ADDR_IP_PREFIX; + gid_address_ip_set (dst, src, IP4); + gid_address_ippref_len (dst) = len; + ip_prefix_normalize (&gid_address_ippref (dst)); + break; + case 1: /* ipv6 */ + gid_address_type (dst) = GID_ADDR_IP_PREFIX; + gid_address_ip_set (dst, src, IP6); + gid_address_ippref_len (dst) = len; + ip_prefix_normalize (&gid_address_ippref (dst)); + break; + case 2: /* l2 mac */ + gid_address_type (dst) = GID_ADDR_MAC; + clib_memcpy (&gid_address_mac (dst), src, 6); + break; + default: + /* unknown type */ + return VNET_API_ERROR_INVALID_VALUE; + } + + gid_address_vni (dst) = vni; + + return 0; +} + +static void + vl_api_lisp_gpe_add_del_fwd_entry_t_handler + (vl_api_lisp_gpe_add_del_fwd_entry_t * mp) +{ + vl_api_lisp_gpe_add_del_fwd_entry_reply_t *rmp; + vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a; + locator_pair_t *pairs = 0; + int rv = 0; + + memset (a, 0, sizeof (a[0])); + + rv = unformat_lisp_eid_api (&a->rmt_eid, mp->vni, mp->eid_type, + mp->rmt_eid, mp->rmt_len); + rv |= unformat_lisp_eid_api (&a->lcl_eid, mp->vni, mp->eid_type, + mp->lcl_eid, mp->lcl_len); + + pairs = unformat_lisp_loc_pairs (mp->lcl_locs, mp->rmt_locs, mp->loc_num); + + if (rv || 0 == pairs) + goto send_reply; + + a->is_add = mp->is_add; + a->locator_pairs = pairs; + a->dp_table = mp->dp_table; + a->vni = mp->vni; + a->action = mp->action; + + rv = vnet_lisp_gpe_add_del_fwd_entry (a, 0); + vec_free (pairs); +send_reply: + REPLY_MACRO (VL_API_LISP_GPE_ADD_DEL_FWD_ENTRY_REPLY); +} + +static void +vl_api_lisp_gpe_enable_disable_t_handler (vl_api_lisp_gpe_enable_disable_t * + mp) +{ + vl_api_lisp_gpe_enable_disable_reply_t *rmp; + int rv = 0; + vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a; + + a->is_en = mp->is_en; + vnet_lisp_gpe_enable_disable (a); + + REPLY_MACRO (VL_API_LISP_GPE_ENABLE_DISABLE_REPLY); +} + +static void +vl_api_lisp_gpe_add_del_iface_t_handler (vl_api_lisp_gpe_add_del_iface_t * mp) +{ + vl_api_lisp_gpe_add_del_iface_reply_t *rmp; + int rv = 0; + + if (mp->is_l2) + { + if (mp->is_add) + { + if (~0 == + lisp_gpe_tenant_l2_iface_add_or_lock (mp->vni, mp->dp_table)) + rv = 1; + } + else + lisp_gpe_tenant_l2_iface_unlock (mp->vni); + } + else + { + if (mp->is_add) + { + if (~0 == + lisp_gpe_tenant_l3_iface_add_or_lock (mp->vni, mp->dp_table)) + rv = 1; + } + else + lisp_gpe_tenant_l3_iface_unlock (mp->vni); + } + + REPLY_MACRO (VL_API_LISP_GPE_ADD_DEL_IFACE_REPLY); +} + +static void +send_lisp_gpe_fwd_entry_details (lisp_gpe_fwd_entry_t * lfe, + unix_shared_memory_queue_t * q, u32 context) +{ + vl_api_lisp_gpe_tunnel_details_t *rmp; + lisp_gpe_main_t *lgm = &lisp_gpe_main; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_LISP_GPE_TUNNEL_DETAILS); + + rmp->tunnels = lfe - lgm->lisp_fwd_entry_pool; + + rmp->is_ipv6 = ip_prefix_version (&(lfe->key->rmt.ippref)) == IP6 ? 1 : 0; + ip_address_copy_addr (rmp->source_ip, + &ip_prefix_addr (&(lfe->key->rmt.ippref))); + ip_address_copy_addr (rmp->destination_ip, + &ip_prefix_addr (&(lfe->key->rmt.ippref))); + + rmp->encap_fib_id = htonl (0); + rmp->decap_fib_id = htonl (lfe->eid_fib_index); + rmp->iid = htonl (lfe->key->vni); + rmp->context = context; + + vl_msg_api_send_shmem (q, (u8 *) & rmp); +} + +static void +vl_api_lisp_gpe_tunnel_dump_t_handler (vl_api_lisp_gpe_tunnel_dump_t * mp) +{ + unix_shared_memory_queue_t *q = NULL; + lisp_gpe_main_t *lgm = &lisp_gpe_main; + lisp_gpe_fwd_entry_t *lfe = NULL; + + if (pool_elts (lgm->lisp_fwd_entry_pool) == 0) + { + return; + } + + q = vl_api_client_index_to_input_queue (mp->client_index); + if (q == 0) + { + return; + } + + /* *INDENT-OFF* */ + pool_foreach(lfe, lgm->lisp_fwd_entry_pool, + ({ + send_lisp_gpe_fwd_entry_details(lfe, q, mp->context); + })); + /* *INDENT-ON* */ +} + +/* + * lisp_gpe_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_lisp_gpe; +#undef _ +} + +static clib_error_t * +lisp_gpe_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 _ + + /* + * Set up the (msg_name, crc, message-id) table + */ + setup_message_id_table (am); + + return 0; +} + +VLIB_API_INIT_FUNCTION (lisp_gpe_api_hookup); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |