0e3c0de1ed
This is a work-in-progress basic BFD session handling. Only asynchronous mode is supported at the moment. Setting the session flags doesn't work. Change-Id: Idba27f721b5c35be5a66a6d202a63d23ff7ecf6f Signed-off-by: Klement Sekera <ksekera@cisco.com>
244 lines
11 KiB
C
244 lines
11 KiB
C
/*
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*------------------------------------------------------------------
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* api_helper_macros.h - message handler helper macros
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*
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* Copyright (c) 2016 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*------------------------------------------------------------------
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*/
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#ifndef __api_helper_macros_h__
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#define __api_helper_macros_h__
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#define f64_endian(a)
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#define f64_print(a,b)
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#define REPLY_MACRO(t) \
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do { \
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unix_shared_memory_queue_t * q; \
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rv = vl_msg_api_pd_handler (mp, rv); \
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q = vl_api_client_index_to_input_queue (mp->client_index); \
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if (!q) \
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return; \
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\
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rmp = vl_msg_api_alloc (sizeof (*rmp)); \
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rmp->_vl_msg_id = ntohs((t)); \
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rmp->context = mp->context; \
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rmp->retval = ntohl(rv); \
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\
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vl_msg_api_send_shmem (q, (u8 *)&rmp); \
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} while(0);
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#define REPLY_MACRO2(t, body) \
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do { \
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unix_shared_memory_queue_t * q; \
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rv = vl_msg_api_pd_handler (mp, rv); \
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q = vl_api_client_index_to_input_queue (mp->client_index); \
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if (!q) \
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return; \
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\
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rmp = vl_msg_api_alloc (sizeof (*rmp)); \
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rmp->_vl_msg_id = ntohs((t)); \
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rmp->context = mp->context; \
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rmp->retval = ntohl(rv); \
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do {body;} while (0); \
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vl_msg_api_send_shmem (q, (u8 *)&rmp); \
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} while(0);
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#define REPLY_MACRO3(t, n, body) \
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do { \
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unix_shared_memory_queue_t * q; \
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rv = vl_msg_api_pd_handler (mp, rv); \
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q = vl_api_client_index_to_input_queue (mp->client_index); \
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if (!q) \
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return; \
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\
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rmp = vl_msg_api_alloc (sizeof (*rmp) + n); \
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rmp->_vl_msg_id = ntohs((t)); \
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rmp->context = mp->context; \
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rmp->retval = ntohl(rv); \
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do {body;} while (0); \
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vl_msg_api_send_shmem (q, (u8 *)&rmp); \
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} while(0);
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#define REPLY_MACRO4(t, n, body) \
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do { \
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unix_shared_memory_queue_t * q; \
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u8 is_error = 0; \
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rv = vl_msg_api_pd_handler (mp, rv); \
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q = vl_api_client_index_to_input_queue (mp->client_index); \
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if (!q) \
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return; \
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\
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rmp = vl_msg_api_alloc_or_null (sizeof (*rmp) + n); \
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if (!rmp) \
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{ \
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/* if there isn't enough memory, try to allocate */ \
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/* some at least for returning an error */ \
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rmp = vl_msg_api_alloc (sizeof (*rmp)); \
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if (!rmp) \
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return; \
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\
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memset (rmp, 0, sizeof (*rmp)); \
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rv = VNET_API_ERROR_TABLE_TOO_BIG; \
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is_error = 1; \
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} \
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rmp->_vl_msg_id = ntohs((t)); \
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rmp->context = mp->context; \
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rmp->retval = ntohl(rv); \
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if (!is_error) \
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do {body;} while (0); \
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vl_msg_api_send_shmem (q, (u8 *)&rmp); \
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} while(0);
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/* "trust, but verify" */
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#define VALIDATE_SW_IF_INDEX(mp) \
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do { u32 __sw_if_index = ntohl(mp->sw_if_index); \
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vnet_main_t *__vnm = vnet_get_main(); \
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if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
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__sw_if_index)) { \
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rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
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goto bad_sw_if_index; \
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} \
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} while(0);
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#define BAD_SW_IF_INDEX_LABEL \
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do { \
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bad_sw_if_index: \
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; \
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} while (0);
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#define VALIDATE_RX_SW_IF_INDEX(mp) \
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do { u32 __rx_sw_if_index = ntohl(mp->rx_sw_if_index); \
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vnet_main_t *__vnm = vnet_get_main(); \
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if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
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__rx_sw_if_index)) { \
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rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
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goto bad_rx_sw_if_index; \
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} \
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} while(0);
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#define BAD_RX_SW_IF_INDEX_LABEL \
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do { \
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bad_rx_sw_if_index: \
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; \
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} while (0);
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#define VALIDATE_TX_SW_IF_INDEX(mp) \
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do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index); \
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vnet_main_t *__vnm = vnet_get_main(); \
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if (pool_is_free_index(__vnm->interface_main.sw_interfaces, \
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__tx_sw_if_index)) { \
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rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
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goto bad_tx_sw_if_index; \
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} \
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} while(0);
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#define BAD_TX_SW_IF_INDEX_LABEL \
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do { \
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bad_tx_sw_if_index: \
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; \
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} while (0);
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#define pub_sub_handler(lca,UCA) \
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static void vl_api_want_##lca##_t_handler ( \
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vl_api_want_##lca##_t *mp) \
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{ \
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vpe_api_main_t *vam = &vpe_api_main; \
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vpe_client_registration_t *rp; \
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vl_api_want_##lca##_reply_t *rmp; \
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uword *p; \
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i32 rv = 0; \
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\
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p = hash_get (vam->lca##_registration_hash, mp->client_index); \
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if (p) { \
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if (mp->enable_disable) { \
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clib_warning ("pid %d: already enabled...", mp->pid); \
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rv = VNET_API_ERROR_INVALID_REGISTRATION; \
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goto reply; \
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} else { \
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rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
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pool_put (vam->lca##_registrations, rp); \
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hash_unset (vam->lca##_registration_hash, \
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mp->client_index); \
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goto reply; \
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} \
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} \
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if (mp->enable_disable == 0) { \
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clib_warning ("pid %d: already disabled...", mp->pid); \
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rv = VNET_API_ERROR_INVALID_REGISTRATION; \
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goto reply; \
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} \
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pool_get (vam->lca##_registrations, rp); \
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rp->client_index = mp->client_index; \
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rp->client_pid = mp->pid; \
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hash_set (vam->lca##_registration_hash, rp->client_index, \
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rp - vam->lca##_registrations); \
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\
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reply: \
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REPLY_MACRO (VL_API_WANT_##UCA##_REPLY); \
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}
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#define foreach_registration_hash \
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_(interface_events) \
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_(to_netconf_server) \
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_(from_netconf_server) \
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_(to_netconf_client) \
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_(from_netconf_client) \
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_(oam_events) \
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_(bfd_events)
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/* WARNING: replicated in vpp/stats.h */
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typedef struct
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{
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u32 client_index; /* in memclnt registration pool */
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u32 client_pid;
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} vpe_client_registration_t;
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struct _vl_api_ip4_arp_event;
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struct _vl_api_ip6_nd_event;
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typedef struct
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{
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#define _(a) uword *a##_registration_hash; \
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vpe_client_registration_t * a##_registrations;
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foreach_registration_hash
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#undef _
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/* notifications happen really early in the game */
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u8 link_state_process_up;
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/* ip4 arp event registration pool */
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struct _vl_api_ip4_arp_event *arp_events;
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/* ip6 nd event registration pool */
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struct _vl_api_ip6_nd_event *nd_events;
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/* convenience */
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vlib_main_t *vlib_main;
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vnet_main_t *vnet_main;
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} vpe_api_main_t;
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extern vpe_api_main_t vpe_api_main;
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#endif /* __api_helper_macros_h__ */
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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