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/*
*------------------------------------------------------------------
* pppoe_api.c - pppoe api
*
* Copyright (c) 2017 Intel 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/interface.h>
#include <vnet/api_errno.h>
#include <vnet/feature/feature.h>
#include <vnet/fib/fib_table.h>
#include <vppinfra/byte_order.h>
#include <vlibmemory/api.h>
#include <vlibsocket/api.h>
#include <pppoe/pppoe.h>
#define vl_msg_id(n,h) n,
typedef enum
{
#include <pppoe/pppoe.api.h>
/* We'll want to know how many messages IDs we need... */
VL_MSG_FIRST_AVAILABLE,
} vl_msg_id_t;
#undef vl_msg_id
/* define message structures */
#define vl_typedefs
#include <pppoe/pppoe.api.h>
#undef vl_typedefs
/* define generated endian-swappers */
#define vl_endianfun
#include <pppoe/pppoe.api.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 <pppoe/pppoe.api.h>
#undef vl_printfun
/* Get the API version number */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <pppoe/pppoe.api.h>
#undef vl_api_version
#define vl_msg_name_crc_list
#include <pppoe/pppoe.api.h>
#undef vl_msg_name_crc_list
#define REPLY_MSG_ID_BASE pem->msg_id_base
#include <vlibapi/api_helper_macros.h>
static void
setup_message_id_table (pppoe_main_t * pem, api_main_t * am)
{
#define _(id,n,crc) \
vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + pem->msg_id_base);
foreach_vl_msg_name_crc_pppoe;
#undef _
}
#define foreach_pppoe_plugin_api_msg \
_(PPPOE_ADD_DEL_SESSION, pppoe_add_del_session) \
_(PPPOE_SESSION_DUMP, pppoe_session_dump)
static void vl_api_pppoe_add_del_session_t_handler
(vl_api_pppoe_add_del_session_t * mp)
{
vl_api_pppoe_add_del_session_reply_t *rmp;
int rv = 0;
u32 decap_fib_index;
ip4_main_t *im = &ip4_main;
pppoe_main_t *pem = &pppoe_main;
uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->decap_vrf_id));
if (!p)
{
rv = VNET_API_ERROR_NO_SUCH_INNER_FIB;
goto out;
}
decap_fib_index = p[0];
vnet_pppoe_add_del_session_args_t a = {
.is_add = mp->is_add,
.is_ip6 = mp->is_ipv6,
.decap_fib_index = decap_fib_index,
.session_id = ntohs (mp->session_id),
.client_ip = to_ip46 (mp->is_ipv6, mp->client_ip),
};
clib_memcpy (a.client_mac, mp->client_mac, 6);
u32 sw_if_index = ~0;
rv = vnet_pppoe_add_del_session (&a, &sw_if_index);
out:
/* *INDENT-OFF* */
REPLY_MACRO2(VL_API_PPPOE_ADD_DEL_SESSION_REPLY,
({
rmp->sw_if_index = ntohl (sw_if_index);
}));
/* *INDENT-ON* */
}
static void send_pppoe_session_details
(pppoe_session_t * t, unix_shared_memory_queue_t * q, u32 context)
{
vl_api_pppoe_session_details_t *rmp;
ip4_main_t *im4 = &ip4_main;
ip6_main_t *im6 = &ip6_main;
u8 is_ipv6 = !ip46_address_is_ip4 (&t->client_ip);
rmp = vl_msg_api_alloc (sizeof (*rmp));
memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_PPPOE_SESSION_DETAILS);
if (is_ipv6)
{
memcpy (rmp->client_ip, t->client_ip.ip6.as_u8, 16);
rmp->decap_vrf_id = htonl (im6->fibs[t->decap_fib_index].ft_table_id);
}
else
{
memcpy (rmp->client_ip, t->client_ip.ip4.as_u8, 4);
rmp->decap_vrf_id = htonl (im4->fibs[t->decap_fib_index].ft_table_id);
}
rmp->session_id = htons (t->session_id);
rmp->encap_if_index = htonl (t->encap_if_index);
clib_memcpy (rmp->local_mac, t->local_mac, 6);
clib_memcpy (rmp->client_mac, t->client_mac, 6);
rmp->sw_if_index = htonl (t->sw_if_index);
rmp->is_ipv6 = is_ipv6;
rmp->context = context;
vl_msg_api_send_shmem (q, (u8 *) & rmp);
}
static void
vl_api_pppoe_session_dump_t_handler (vl_api_pppoe_session_dump_t * mp)
{
unix_shared_memory_queue_t *q;
pppoe_main_t *pem = &pppoe_main;
pppoe_session_t *t;
u32 sw_if_index;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
{
return;
}
sw_if_index = ntohl (mp->sw_if_index);
if (~0 == sw_if_index)
{
/* *INDENT-OFF* */
pool_foreach (t, pem->sessions,
({
send_pppoe_session_details(t, q, mp->context);
}));
/* *INDENT-ON* */
}
else
{
if ((sw_if_index >= vec_len (pem->session_index_by_sw_if_index)) ||
(~0 == pem->session_index_by_sw_if_index[sw_if_index]))
{
return;
}
t = &pem->sessions[pem->session_index_by_sw_if_index[sw_if_index]];
send_pppoe_session_details (t, q, mp->context);
}
}
static clib_error_t *
pppoe_api_hookup (vlib_main_t * vm)
{
pppoe_main_t *pem = &pppoe_main;
u8 *name = format (0, "pppoe_%08x%c", api_version, 0);
pem->msg_id_base = vl_msg_api_get_msg_ids
((char *) name, VL_MSG_FIRST_AVAILABLE);
#define _(N,n) \
vl_msg_api_set_handlers((VL_API_##N + pem->msg_id_base), \
#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_pppoe_plugin_api_msg;
#undef _
/* Add our API messages to the global name_crc hash table */
setup_message_id_table (pem, &api_main);
return 0;
}
VLIB_API_INIT_FUNCTION (pppoe_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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