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Diffstat (limited to 'src/vnet/lisp-gpe/lisp_gpe_api.c')
-rw-r--r--src/vnet/lisp-gpe/lisp_gpe_api.c304
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:
+ */