blob: c37923f7b01a1f9710515b509871347ba5e9dc6c [file] [log] [blame]
/*
*------------------------------------------------------------------
* sr_api.c - ipv6 segment routing 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 <vnet/srv6/sr.h>
#include <vlibmemory/api.h>
#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/feature/feature.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 \
_(SR_LOCALSID_ADD_DEL, sr_localsid_add_del) \
_(SR_POLICY_ADD, sr_policy_add) \
_(SR_POLICY_MOD, sr_policy_mod) \
_(SR_POLICY_DEL, sr_policy_del) \
_(SR_STEERING_ADD_DEL, sr_steering_add_del) \
_(SR_SET_ENCAP_SOURCE, sr_set_encap_source) \
_(SR_LOCALSIDS_DUMP, sr_localsids_dump) \
_(SR_POLICIES_DUMP, sr_policies_dump) \
_(SR_STEERING_POL_DUMP, sr_steering_pol_dump)
static void vl_api_sr_localsid_add_del_t_handler
(vl_api_sr_localsid_add_del_t * mp)
{
vl_api_sr_localsid_add_del_reply_t *rmp;
int rv = 0;
/*
* int sr_cli_localsid (char is_del, ip6_address_t *localsid_addr,
* char end_psp, u8 behavior, u32 sw_if_index, u32 vlan_index, u32 fib_table,
* ip46_address_t *nh_addr, void *ls_plugin_mem)
*/
if (mp->behavior == SR_BEHAVIOR_X ||
mp->behavior == SR_BEHAVIOR_DX6 ||
mp->behavior == SR_BEHAVIOR_DX4 || mp->behavior == SR_BEHAVIOR_DX2)
VALIDATE_SW_IF_INDEX (mp);
ip46_address_t prefix;
memset (&prefix, 0, sizeof (ip46_address_t));
if ((mp->nh_addr4[0] | mp->nh_addr4[1] | mp->
nh_addr4[2] | mp->nh_addr4[3]) != 0)
memcpy (&prefix.ip4, mp->nh_addr4, sizeof (prefix.ip4));
else
memcpy (&prefix.ip6, mp->nh_addr6, sizeof (prefix.ip6));
rv = sr_cli_localsid (mp->is_del,
(ip6_address_t *) & mp->localsid,
mp->end_psp,
mp->behavior,
ntohl (mp->sw_if_index),
ntohl (mp->vlan_index),
ntohl (mp->fib_table), &prefix, NULL);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SR_LOCALSID_ADD_DEL_REPLY);
}
static void
vl_api_sr_policy_add_t_handler (vl_api_sr_policy_add_t * mp)
{
vl_api_sr_policy_add_reply_t *rmp;
ip6_address_t *segments = 0, *seg;
ip6_address_t *this_address = (ip6_address_t *) mp->sids.sids;
int i;
for (i = 0; i < mp->sids.num_sids; i++)
{
vec_add2 (segments, seg, 1);
clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
this_address++;
}
/*
* sr_policy_add (ip6_address_t *bsid, ip6_address_t *segments,
* u32 weight, u8 behavior, u32 fib_table, u8 is_encap)
*/
int rv = 0;
rv = sr_policy_add ((ip6_address_t *) & mp->bsid_addr,
segments,
ntohl (mp->sids.weight),
mp->type, ntohl (mp->fib_table), mp->is_encap);
vec_free (segments);
REPLY_MACRO (VL_API_SR_POLICY_ADD_REPLY);
}
static void
vl_api_sr_policy_mod_t_handler (vl_api_sr_policy_mod_t * mp)
{
vl_api_sr_policy_mod_reply_t *rmp;
ip6_address_t *segments = 0, *seg;
ip6_address_t *this_address = (ip6_address_t *) mp->sids.sids;
int i;
for (i = 0; i < mp->sids.num_sids; i++)
{
vec_add2 (segments, seg, 1);
clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
this_address++;
}
int rv = 0;
/*
* int
* sr_policy_mod(ip6_address_t *bsid, u32 index, u32 fib_table,
* u8 operation, ip6_address_t *segments, u32 sl_index,
* u32 weight, u8 is_encap)
*/
rv = sr_policy_mod ((ip6_address_t *) & mp->bsid_addr,
ntohl (mp->sr_policy_index),
ntohl (mp->fib_table),
mp->operation,
segments, ntohl (mp->sl_index),
ntohl (mp->sids.weight));
vec_free (segments);
REPLY_MACRO (VL_API_SR_POLICY_MOD_REPLY);
}
static void
vl_api_sr_policy_del_t_handler (vl_api_sr_policy_del_t * mp)
{
vl_api_sr_policy_del_reply_t *rmp;
int rv = 0;
/*
* int
* sr_policy_del (ip6_address_t *bsid, u32 index)
*/
rv = sr_policy_del ((ip6_address_t *) & mp->bsid_addr,
ntohl (mp->sr_policy_index));
REPLY_MACRO (VL_API_SR_POLICY_DEL_REPLY);
}
static void
vl_api_sr_set_encap_source_t_handler (vl_api_sr_set_encap_source_t * mp)
{
vl_api_sr_set_encap_source_reply_t *rmp;
int rv = 0;
sr_set_source ((ip6_address_t *) & mp->encaps_source);
REPLY_MACRO (VL_API_SR_POLICY_DEL_REPLY);
}
static void vl_api_sr_steering_add_del_t_handler
(vl_api_sr_steering_add_del_t * mp)
{
vl_api_sr_steering_add_del_reply_t *rmp;
int rv = 0;
/*
* int
* sr_steering_policy(int is_del, ip6_address_t *bsid, u32 sr_policy_index,
* u32 table_id, ip46_address_t *prefix, u32 mask_width, u32 sw_if_index,
* u8 traffic_type)
*/
if (mp->traffic_type == SR_STEER_L2)
VALIDATE_SW_IF_INDEX (mp);
rv = sr_steering_policy (mp->is_del,
(ip6_address_t *) & mp->bsid_addr,
ntohl (mp->sr_policy_index),
ntohl (mp->table_id),
(ip46_address_t *) & mp->prefix_addr,
ntohl (mp->mask_width),
ntohl (mp->sw_if_index), mp->traffic_type);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SR_STEERING_ADD_DEL_REPLY);
}
static void send_sr_localsid_details
(ip6_sr_localsid_t * t, vl_api_registration_t * reg, u32 context)
{
vl_api_sr_localsids_details_t *rmp;
rmp = vl_msg_api_alloc (sizeof (*rmp));
memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_SR_LOCALSIDS_DETAILS);
clib_memcpy (rmp->addr.addr, &t->localsid, sizeof (ip6_address_t));
rmp->end_psp = t->end_psp;
rmp->behavior = htons (t->behavior);
rmp->fib_table = htonl (t->fib_table);
rmp->vlan_index = htonl (t->vlan_index);
if (ip46_address_is_ip4 (&t->next_hop))
clib_memcpy (rmp->xconnect_nh_addr4, &t->next_hop.ip4,
sizeof (ip4_address_t));
else
clib_memcpy (rmp->xconnect_nh_addr6, &t->next_hop.ip6,
sizeof (ip6_address_t));
rmp->xconnect_iface_or_vrf_table = htonl (t->sw_if_index);
rmp->context = context;
vl_api_send_msg (reg, (u8 *) rmp);
}
static void vl_api_sr_localsids_dump_t_handler
(vl_api_sr_localsids_dump_t * mp)
{
vl_api_registration_t *reg;
ip6_sr_main_t *sm = &sr_main;
ip6_sr_localsid_t *t;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
/* *INDENT-OFF* */
pool_foreach (t, sm->localsids,
({
send_sr_localsid_details(t, reg, mp->context);
}));
/* *INDENT-ON* */
}
static void send_sr_policies_details
(ip6_sr_policy_t * t, vl_api_registration_t * reg, u32 context)
{
vl_api_sr_policies_details_t *rmp;
ip6_sr_main_t *sm = &sr_main;
u32 *sl_index;
ip6_sr_sl_t *segment_list = 0;
vl_api_srv6_sid_list_t *write_sid_list;
rmp = vl_msg_api_alloc (sizeof (*rmp) +
vec_len (t->segments_lists) *
sizeof (vl_api_srv6_sid_list_t));
memset (rmp, 0,
(sizeof (*rmp) +
vec_len (t->segments_lists) * sizeof (vl_api_srv6_sid_list_t)));
rmp->_vl_msg_id = ntohs (VL_API_SR_POLICIES_DETAILS);
clib_memcpy (rmp->bsid.addr, &t->bsid, sizeof (ip6_address_t));
rmp->is_encap = t->is_encap;
rmp->type = t->type;
rmp->fib_table = htonl (t->fib_table);
rmp->num_sid_lists = vec_len (t->segments_lists);
/* Fill in all the segments lists */
vec_foreach (sl_index, t->segments_lists)
{
segment_list = pool_elt_at_index (sm->sid_lists, *sl_index);
write_sid_list = &rmp->sid_lists[sl_index - t->segments_lists];
write_sid_list->num_sids = vec_len (segment_list->segments);
write_sid_list->weight = htonl (segment_list->weight);
clib_memcpy (write_sid_list->sids, segment_list->segments,
vec_len (segment_list->segments) * sizeof (ip6_address_t));
}
rmp->context = context;
vl_api_send_msg (reg, (u8 *) rmp);
}
static void
vl_api_sr_policies_dump_t_handler (vl_api_sr_policies_dump_t * mp)
{
vl_api_registration_t *reg;
ip6_sr_main_t *sm = &sr_main;
ip6_sr_policy_t *t;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
/* *INDENT-OFF* */
pool_foreach (t, sm->sr_policies,
({
send_sr_policies_details(t, reg, mp->context);
}));
/* *INDENT-ON* */
}
static void send_sr_steering_pol_details
(ip6_sr_steering_policy_t * t, vl_api_registration_t * reg, u32 context)
{
vl_api_sr_steering_pol_details_t *rmp;
ip6_sr_main_t *sm = &sr_main;
rmp = vl_msg_api_alloc (sizeof (*rmp));
memset (rmp, 0, sizeof (*rmp));
rmp->_vl_msg_id = ntohs (VL_API_SR_STEERING_POL_DETAILS);
//Get the SR policy BSID
ip6_sr_policy_t *p;
p = pool_elt_at_index (sm->sr_policies, t->sr_policy);
clib_memcpy (rmp->bsid.addr, &p->bsid, sizeof (ip6_address_t));
//Get the steering
rmp->traffic_type = t->classify.traffic_type;
rmp->fib_table = htonl (t->classify.l3.fib_table);
rmp->mask_width = htonl (t->classify.l3.mask_width);
if (ip46_address_is_ip4 (&t->classify.l3.prefix))
clib_memcpy (rmp->prefix_addr, &t->classify.l3.prefix.ip4,
sizeof (ip4_address_t));
else
clib_memcpy (rmp->prefix_addr, &t->classify.l3.prefix.ip6,
sizeof (ip6_address_t));
rmp->sw_if_index = htonl (t->classify.l2.sw_if_index);
rmp->context = context;
vl_api_send_msg (reg, (u8 *) rmp);
}
static void vl_api_sr_steering_pol_dump_t_handler
(vl_api_sr_policies_dump_t * mp)
{
vl_api_registration_t *reg;
ip6_sr_main_t *sm = &sr_main;
ip6_sr_steering_policy_t *t;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
/* *INDENT-OFF* */
pool_foreach (t, sm->steer_policies,
({
send_sr_steering_pol_details(t, reg, mp->context);
}));
/* *INDENT-ON* */
}
/*
* sr_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_sr;
#undef _
}
static clib_error_t *
sr_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 (sr_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/