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/*
*------------------------------------------------------------------
* api_helper_macros.h - message handler helper macros
*
* 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.
*------------------------------------------------------------------
*/
#ifndef __api_helper_macros_h__
#define __api_helper_macros_h__
#define f64_endian(a)
#define f64_print(a,b)
#define REPLY_MACRO(t) \
do { \
unix_shared_memory_queue_t * q; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
rmp->_vl_msg_id = ntohs((t)); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
\
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
#define REPLY_MACRO2(t, body) \
do { \
unix_shared_memory_queue_t * q; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
rmp->_vl_msg_id = ntohs((t)); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
do {body;} while (0); \
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
#define REPLY_MACRO3(t, n, body) \
do { \
unix_shared_memory_queue_t * q; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc (sizeof (*rmp) + n); \
rmp->_vl_msg_id = ntohs((t)); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
do {body;} while (0); \
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
#define REPLY_MACRO4(t, n, body) \
do { \
unix_shared_memory_queue_t * q; \
u8 is_error = 0; \
rv = vl_msg_api_pd_handler (mp, rv); \
q = vl_api_client_index_to_input_queue (mp->client_index); \
if (!q) \
return; \
\
rmp = vl_msg_api_alloc_or_null (sizeof (*rmp) + n); \
if (!rmp) \
{ \
/* if there isn't enough memory, try to allocate */ \
/* some at least for returning an error */ \
rmp = vl_msg_api_alloc (sizeof (*rmp)); \
if (!rmp) \
return; \
\
memset (rmp, 0, sizeof (*rmp)); \
rv = VNET_API_ERROR_TABLE_TOO_BIG; \
is_error = 1; \
} \
rmp->_vl_msg_id = ntohs((t)); \
rmp->context = mp->context; \
rmp->retval = ntohl(rv); \
if (!is_error) \
do {body;} while (0); \
vl_msg_api_send_shmem (q, (u8 *)&rmp); \
} while(0);
/* "trust, but verify" */
static inline uword
vnet_sw_if_index_is_api_valid (u32 sw_if_index)
{
return vnet_sw_interface_is_api_valid (vnet_get_main (), sw_if_index);
}
#define VALIDATE_SW_IF_INDEX(mp) \
do { u32 __sw_if_index = ntohl(mp->sw_if_index); \
if (!vnet_sw_if_index_is_api_valid(__sw_if_index)) { \
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
goto bad_sw_if_index; \
} \
} while(0);
#define BAD_SW_IF_INDEX_LABEL \
do { \
bad_sw_if_index: \
; \
} while (0);
#define VALIDATE_RX_SW_IF_INDEX(mp) \
do { u32 __rx_sw_if_index = ntohl(mp->rx_sw_if_index); \
if (!vnet_sw_if_index_is_api_valid(__rx_sw_if_index)) { \
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
goto bad_rx_sw_if_index; \
} \
} while(0);
#define BAD_RX_SW_IF_INDEX_LABEL \
do { \
bad_rx_sw_if_index: \
; \
} while (0);
#define VALIDATE_TX_SW_IF_INDEX(mp) \
do { u32 __tx_sw_if_index = ntohl(mp->tx_sw_if_index); \
if (!vnet_sw_if_index_is_api_valid(__tx_sw_if_index)) { \
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX; \
goto bad_tx_sw_if_index; \
} \
} while(0);
#define BAD_TX_SW_IF_INDEX_LABEL \
do { \
bad_tx_sw_if_index: \
; \
} while (0);
#define pub_sub_handler(lca,UCA) \
static void vl_api_want_##lca##_t_handler ( \
vl_api_want_##lca##_t *mp) \
{ \
vpe_api_main_t *vam = &vpe_api_main; \
vpe_client_registration_t *rp; \
vl_api_want_##lca##_reply_t *rmp; \
uword *p; \
i32 rv = 0; \
\
p = hash_get (vam->lca##_registration_hash, mp->client_index); \
if (p) { \
if (mp->enable_disable) { \
clib_warning ("pid %d: already enabled...", mp->pid); \
rv = VNET_API_ERROR_INVALID_REGISTRATION; \
goto reply; \
} else { \
rp = pool_elt_at_index (vam->lca##_registrations, p[0]); \
pool_put (vam->lca##_registrations, rp); \
hash_unset (vam->lca##_registration_hash, \
mp->client_index); \
goto reply; \
} \
} \
if (mp->enable_disable == 0) { \
clib_warning ("pid %d: already disabled...", mp->pid); \
rv = VNET_API_ERROR_INVALID_REGISTRATION; \
goto reply; \
} \
pool_get (vam->lca##_registrations, rp); \
rp->client_index = mp->client_index; \
rp->client_pid = mp->pid; \
hash_set (vam->lca##_registration_hash, rp->client_index, \
rp - vam->lca##_registrations); \
\
reply: \
REPLY_MACRO (VL_API_WANT_##UCA##_REPLY); \
}
#define foreach_registration_hash \
_(interface_events) \
_(to_netconf_server) \
_(from_netconf_server) \
_(to_netconf_client) \
_(from_netconf_client) \
_(oam_events) \
_(bfd_events)
/* WARNING: replicated in vpp/stats.h */
typedef struct
{
u32 client_index; /* in memclnt registration pool */
u32 client_pid;
} vpe_client_registration_t;
struct _vl_api_ip4_arp_event;
struct _vl_api_ip6_nd_event;
typedef struct
{
#define _(a) uword *a##_registration_hash; \
vpe_client_registration_t * a##_registrations;
foreach_registration_hash
#undef _
/* notifications happen really early in the game */
u8 link_state_process_up;
/* ip4 arp event registration pool */
struct _vl_api_ip4_arp_event *arp_events;
/* ip6 nd event registration pool */
struct _vl_api_ip6_nd_event *nd_events;
/* convenience */
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
} vpe_api_main_t;
extern vpe_api_main_t vpe_api_main;
#endif /* __api_helper_macros_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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