| /* |
| *------------------------------------------------------------------ |
| * 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: |
| */ |