diff options
Diffstat (limited to 'src/plugins/srv6-mobile/sr_mobile_api.c')
| -rw-r--r-- | src/plugins/srv6-mobile/sr_mobile_api.c | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/src/plugins/srv6-mobile/sr_mobile_api.c b/src/plugins/srv6-mobile/sr_mobile_api.c new file mode 100644 index 00000000000..51199317a3b --- /dev/null +++ b/src/plugins/srv6-mobile/sr_mobile_api.c @@ -0,0 +1,339 @@ +/* + *------------------------------------------------------------------ + * 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: + */ |