Takeru Hayasaka
68ac244283
This merge request adds the feature to manipulate localsids and policies for SRv6 mobile via API. Type: feature Signed-off-by: Takeru Hayasaka <hayatake396@gmail.com> Change-Id: Ibb46bf71ae1d9d4591ce2c8ccf66f520887dad70
340 lines
9.5 KiB
C
340 lines
9.5 KiB
C
/*
|
|
*------------------------------------------------------------------
|
|
* sr_mobile_api.c - ipv6 segment routing for mobile u-plane api
|
|
*
|
|
* Copyright (c) 2022 BBSakura Networks Inc 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 <stdint.h>
|
|
#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/fib/fib_table.h>
|
|
#include <vnet/ip/ip_types_api.h>
|
|
|
|
#include <vnet/format_fns.h>
|
|
#include <vnet/srv6/sr.api_enum.h>
|
|
#include <vnet/srv6/sr.api_types.h>
|
|
|
|
#include <srv6-mobile/mobile.h>
|
|
#include <srv6-mobile/sr_mobile.api_types.h>
|
|
#include <srv6-mobile/sr_mobile_types.api_types.h>
|
|
#include <srv6-mobile/sr_mobile.api_enum.h>
|
|
|
|
#include <srv6-mobile/sr_mobile_api.h>
|
|
|
|
u16 msg_id_base;
|
|
#define REPLY_MSG_ID_BASE msg_id_base
|
|
#include <vlibapi/api_helper_macros.h>
|
|
|
|
static inline uint16_t
|
|
sr_plugin_localsid_fn_num_find_by (ip6_sr_main_t *sm, const char *keyword_str,
|
|
size_t keyword_len)
|
|
{
|
|
sr_localsid_fn_registration_t *plugin = 0, **vec_plugins = 0;
|
|
sr_localsid_fn_registration_t **plugin_it = 0;
|
|
pool_foreach (plugin, sm->plugin_functions)
|
|
{
|
|
vec_add1 (vec_plugins, plugin);
|
|
}
|
|
|
|
vec_foreach (plugin_it, vec_plugins)
|
|
{
|
|
if (!srv6_mobile_strcmp_with_size (keyword_str, keyword_len,
|
|
(char *) (*plugin_it)->keyword_str))
|
|
{
|
|
return (*plugin_it)->sr_localsid_function_number;
|
|
}
|
|
}
|
|
return UINT16_MAX;
|
|
}
|
|
|
|
static inline uint16_t
|
|
sr_plugin_policy_fn_num_find_by (ip6_sr_main_t *sm, const char *keyword_str,
|
|
size_t keyword_len)
|
|
{
|
|
sr_policy_fn_registration_t *plugin = 0, **vec_plugins = 0;
|
|
sr_policy_fn_registration_t **plugin_it = 0;
|
|
pool_foreach (plugin, sm->policy_plugin_functions)
|
|
{
|
|
vec_add1 (vec_plugins, plugin);
|
|
}
|
|
|
|
vec_foreach (plugin_it, vec_plugins)
|
|
{
|
|
if (!srv6_mobile_strcmp_with_size (keyword_str, keyword_len,
|
|
(char *) (*plugin_it)->keyword_str))
|
|
{
|
|
return (*plugin_it)->sr_policy_function_number;
|
|
}
|
|
}
|
|
return UINT16_MAX;
|
|
}
|
|
|
|
static void
|
|
vl_api_sr_mobile_localsid_add_del_t_handler (
|
|
vl_api_sr_mobile_localsid_add_del_t *mp)
|
|
{
|
|
ip6_sr_main_t *sm = &sr_main;
|
|
vl_api_sr_mobile_localsid_add_del_reply_t *rmp;
|
|
int rv = 0;
|
|
ip6_address_t localsid;
|
|
u16 localsid_prefix_len = 128;
|
|
void *ls_plugin_mem = 0;
|
|
u16 behavior = 0;
|
|
u32 dt_type;
|
|
size_t behavior_size = 0;
|
|
mobile_localsid_function_list_t kind_fn =
|
|
SRV6_MOBILE_LOCALSID_UNKNOWN_FUNCTION;
|
|
|
|
mp->behavior[sizeof (mp->behavior) - 1] = '\0';
|
|
behavior_size = sizeof (mp->behavior);
|
|
// search behavior index
|
|
if (mp->behavior[0])
|
|
{
|
|
if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior, behavior_size,
|
|
"end.m.gtp4.e"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_LOCALSID_END_M_GTP4_E;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior,
|
|
behavior_size, "end.m.gtp6.e"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_LOCALSID_END_M_GTP6_E;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior,
|
|
behavior_size, "end.m.gtp6.d"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_LOCALSID_END_M_GTP6_D;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size (
|
|
(char *) mp->behavior, behavior_size, "end.m.gtp6.d.di"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DI;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size (
|
|
(char *) mp->behavior, behavior_size, "end.m.gtp6.d.dt4"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DT4;
|
|
dt_type = SRV6_GTP6_DT4;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size (
|
|
(char *) mp->behavior, behavior_size, "end.m.gtp6.d.dt6"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DT6;
|
|
dt_type = SRV6_GTP6_DT6;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size (
|
|
(char *) mp->behavior, behavior_size, "end.m.gtp6.d.dt46"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DT46;
|
|
dt_type = SRV6_GTP6_DT46;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
switch (kind_fn)
|
|
{
|
|
case SRV6_MOBILE_LOCALSID_END_M_GTP4_E:
|
|
alloc_param_srv6_end_m_gtp4_e (&ls_plugin_mem, &mp->v4src_addr,
|
|
ntohl (mp->v4src_position),
|
|
ntohl (mp->fib_table));
|
|
break;
|
|
case SRV6_MOBILE_LOCALSID_END_M_GTP6_E:
|
|
alloc_param_srv6_end_m_gtp6_e (&ls_plugin_mem,
|
|
ntohl (mp->fib_table));
|
|
break;
|
|
case SRV6_MOBILE_LOCALSID_END_M_GTP6_D:
|
|
alloc_param_srv6_end_m_gtp6_d (
|
|
&ls_plugin_mem, &mp->sr_prefix.address, mp->sr_prefix.len,
|
|
(u8) ntohl (mp->nhtype), mp->drop_in, ntohl (mp->fib_table));
|
|
break;
|
|
case SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DI:
|
|
alloc_param_srv6_end_m_gtp6_di (
|
|
&ls_plugin_mem, &mp->sr_prefix.address, mp->sr_prefix.len,
|
|
(u8) ntohl (mp->nhtype));
|
|
break;
|
|
case SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DT4:
|
|
case SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DT6:
|
|
case SRV6_MOBILE_LOCALSID_END_M_GTP6_D_DT46:
|
|
alloc_param_srv6_end_m_gtp6_dt (
|
|
&ls_plugin_mem, ntohl (mp->fib_table), ntohl (mp->local_fib_table),
|
|
dt_type);
|
|
break;
|
|
case SRV6_MOBILE_LOCALSID_UNKNOWN_FUNCTION:
|
|
default:
|
|
return; // error
|
|
}
|
|
behavior = sr_plugin_localsid_fn_num_find_by (sm, (char *) mp->behavior,
|
|
behavior_size);
|
|
if (behavior == UINT16_MAX)
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
ip6_address_decode (mp->localsid_prefix.address, &localsid);
|
|
localsid_prefix_len = mp->localsid_prefix.len;
|
|
|
|
rv = sr_cli_localsid (mp->is_del, &localsid, localsid_prefix_len,
|
|
0, // ignore end_psp
|
|
behavior,
|
|
0, // ignore sw_if_index
|
|
0, // ignore vlan_index
|
|
ntohl (mp->fib_table),
|
|
NULL, // ignore nh_addr
|
|
0, // ignore usid_len
|
|
ls_plugin_mem);
|
|
|
|
REPLY_MACRO (VL_API_SR_MOBILE_LOCALSID_ADD_DEL_REPLY);
|
|
}
|
|
|
|
static void
|
|
vl_api_sr_mobile_policy_add_t_handler (vl_api_sr_mobile_policy_add_t *mp)
|
|
{
|
|
ip6_sr_main_t *sm = &sr_main;
|
|
vl_api_sr_mobile_policy_add_reply_t *rmp;
|
|
ip6_address_t bsid_addr;
|
|
ip6_address_t encap_src;
|
|
void *ls_plugin_mem = 0;
|
|
u16 behavior = 0;
|
|
size_t behavior_size = 0;
|
|
|
|
u32 dt_type;
|
|
mobile_policy_function_list_t kind_fn = SRV6_MOBILE_POLICY_UNKNOWN_FUNCTION;
|
|
|
|
ip6_address_decode (mp->bsid_addr, &bsid_addr);
|
|
ip6_address_decode (mp->encap_src, &encap_src);
|
|
if (ip6_address_is_zero (&encap_src))
|
|
{
|
|
encap_src = *sr_get_encaps_source ();
|
|
}
|
|
mp->behavior[sizeof (mp->behavior) - 1] = '\0';
|
|
behavior_size = sizeof (mp->behavior);
|
|
|
|
// search behavior index
|
|
if (mp->behavior[0])
|
|
{
|
|
if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior, behavior_size,
|
|
"t.m.gtp4.d"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_POLICY_T_M_GTP4_D;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior,
|
|
behavior_size, "t.m.gtp4.dt4"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_POLICY_T_M_GTP4_DT4;
|
|
dt_type = SRV6_GTP4_DT4;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior,
|
|
behavior_size, "t.m.gtp4.dt6"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_POLICY_T_M_GTP4_DT6;
|
|
dt_type = SRV6_GTP4_DT6;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior,
|
|
behavior_size, "t.m.gtp4.dt46"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_POLICY_T_M_GTP4_DT46;
|
|
dt_type = SRV6_GTP4_DT46;
|
|
}
|
|
else if (!srv6_mobile_strcmp_with_size ((char *) mp->behavior,
|
|
behavior_size, "end.m.gtp6.d"))
|
|
{
|
|
kind_fn = SRV6_MOBILE_POLICY_END_M_GTP6_D;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
|
|
switch (kind_fn)
|
|
{
|
|
case SRV6_MOBILE_POLICY_T_M_GTP4_D:
|
|
alloc_param_srv6_t_m_gtp4_d (
|
|
&ls_plugin_mem, &mp->v6src_prefix.address, mp->v6src_prefix.len,
|
|
&mp->sr_prefix.address, mp->sr_prefix.len, ntohl (mp->fib_table),
|
|
mp->nhtype, mp->drop_in);
|
|
break;
|
|
case SRV6_MOBILE_POLICY_END_M_GTP6_D:
|
|
alloc_param_srv6_end_m_gtp6_d (
|
|
&ls_plugin_mem, &mp->sr_prefix.address, mp->sr_prefix.len,
|
|
mp->nhtype, mp->drop_in, ntohl (mp->fib_table));
|
|
break;
|
|
case SRV6_MOBILE_POLICY_T_M_GTP4_DT4:
|
|
case SRV6_MOBILE_POLICY_T_M_GTP4_DT6:
|
|
case SRV6_MOBILE_POLICY_T_M_GTP4_DT46:
|
|
alloc_param_srv6_t_m_gtp4_dt (&ls_plugin_mem, ntohl (mp->fib_table),
|
|
ntohl (mp->local_fib_table), dt_type);
|
|
break;
|
|
case SRV6_MOBILE_POLICY_UNKNOWN_FUNCTION:
|
|
default:
|
|
return; // error
|
|
}
|
|
|
|
behavior = sr_plugin_policy_fn_num_find_by (sm, (char *) mp->behavior,
|
|
behavior_size);
|
|
if (behavior == UINT16_MAX)
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
|
|
int rv = 0;
|
|
ip6_address_t *segments = 0, *this_seg;
|
|
vec_add2 (segments, this_seg, 1);
|
|
clib_memset (this_seg, 0, sizeof (*this_seg));
|
|
|
|
rv = sr_policy_add (&bsid_addr,
|
|
segments, // ignore segments
|
|
&encap_src,
|
|
(u32) ~0, // ignore weight
|
|
SR_POLICY_TYPE_DEFAULT, // ignore type
|
|
(u32) ~0, // ignore fib_table
|
|
1, // ignore is_encap,
|
|
behavior, ls_plugin_mem);
|
|
vec_free (segments);
|
|
REPLY_MACRO (VL_API_SR_MOBILE_POLICY_ADD_REPLY);
|
|
}
|
|
|
|
#include <srv6-mobile/sr_mobile.api.c>
|
|
static clib_error_t *
|
|
sr_mobile_api_hookup (vlib_main_t *vm)
|
|
{
|
|
/*
|
|
* Set up the (msg_name, crc, message-id) table
|
|
*/
|
|
REPLY_MSG_ID_BASE = setup_message_id_table ();
|
|
|
|
return 0;
|
|
}
|
|
|
|
VLIB_API_INIT_FUNCTION (sr_mobile_api_hookup);
|
|
/*
|
|
* fd.io coding-style-patch-verification: ON
|
|
*
|
|
* Local Variables:
|
|
* eval: (c-set-style "gnu")
|
|
* End:
|
|
*/
|