diff options
Diffstat (limited to 'ctrl/libhicnctrl/src/modules/hicn_plugin')
| -rw-r--r-- | ctrl/libhicnctrl/src/modules/hicn_plugin/base.h | 36 | ||||
| -rw-r--r-- | ctrl/libhicnctrl/src/modules/hicn_plugin/listener.c | 184 | ||||
| -rw-r--r-- | ctrl/libhicnctrl/src/modules/hicn_plugin/listener.h | 28 | ||||
| -rw-r--r-- | ctrl/libhicnctrl/src/modules/hicn_plugin/route.c | 541 | ||||
| -rw-r--r-- | ctrl/libhicnctrl/src/modules/hicn_plugin/route.h | 28 |
5 files changed, 817 insertions, 0 deletions
diff --git a/ctrl/libhicnctrl/src/modules/hicn_plugin/base.h b/ctrl/libhicnctrl/src/modules/hicn_plugin/base.h new file mode 100644 index 000000000..05565e938 --- /dev/null +++ b/ctrl/libhicnctrl/src/modules/hicn_plugin/base.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2021 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. + */ + +/** + * \file modules/hicn_plugin/base.h + * \brief Base structures for hICN plugin module + */ + +#include <vapi/vapi_safe.h> +#include "../../module.h" +#include "../../socket_private.h" + +typedef struct { + vapi_ctx_t g_vapi_ctx_instance; + char *url; + + size_t roff; /**< Read offset */ + size_t woff; /**< Write offset */ + u32 buffer[RECV_BUFLEN]; + /* Next sequence number to be used for requests */ + int seq; + + bool async; +} hc_sock_vpp_data_t; diff --git a/ctrl/libhicnctrl/src/modules/hicn_plugin/listener.c b/ctrl/libhicnctrl/src/modules/hicn_plugin/listener.c new file mode 100644 index 000000000..f0aa4e884 --- /dev/null +++ b/ctrl/libhicnctrl/src/modules/hicn_plugin/listener.c @@ -0,0 +1,184 @@ +/* + * Copyright (c) 2021 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. + */ + +/** + * \file modules/hicn_plugin/listener.c + * \brief Implementation of listener object VFT for hicn_plugin. + */ + +#include <hicn/util/vector.h> + +#include "base.h" +#include "listener.h" + +struct listener_data_s { + hc_listener_t listener; + hc_data_t *data; +}; + +/** + * This is a callback used to append in callback_ctx which is a hc_data_t + * designed to hold hc_listener_t, a list of listener, each corresponding to an + * IP address (v4 then v6) of the interfaces, and thus build a list of hICN + * listeners. + */ +static vapi_error_e process_ip_info(struct vapi_ctx_s *ctx, void *callback_ctx, + vapi_error_e rv, bool is_last, + vapi_payload_ip_address_details *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + if (reply && is_last) printf("COUCOU\n"); + if (is_last) return 0; + + struct listener_data_s *ld = (struct listener_data_s *)callback_ctx; + + if (reply->prefix.address.af == ADDRESS_IP4) { + memcpy(&(ld->listener.local_addr), reply->prefix.address.un.ip4, + IPV4_ADDR_LEN); + ld->listener.family = AF_INET; + } else { + memcpy(&(ld->listener.local_addr), reply->prefix.address.un.ip6, + IPV6_ADDR_LEN); + ld->listener.family = AF_INET6; + } + ld->listener.local_port = 0; + + ld->listener.id = reply->sw_if_index; + hc_data_t *data = ld->data; + hc_listener_t *listener = &ld->listener; + hc_data_push(data, listener); + + return rv; +} + +/* LISTENER LIST */ + +typedef struct { + u32 swif; + char interface_name[INTERFACE_LEN]; +} hc_vapi_interface_t; + +/* + * A pointer to hc_data_t is passed in the callback context + * Objective is to store a vector of hc_vapi_interface_t inside + */ +static vapi_error_e on_listener_list_complete_cb( + struct vapi_ctx_s *ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_sw_interface_details *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + if (is_last) return 0; + + hc_vapi_interface_t **vpp_interfaces_vec = + (hc_vapi_interface_t **)callback_ctx; + + hc_vapi_interface_t interface = {.swif = reply->sw_if_index}; + // XXX bug + memcpy(interface.interface_name, reply->interface_name, INTERFACE_LEN); + + vector_push(*vpp_interfaces_vec, interface); + + return rv; +} + +static int _vpp_listener_list(hc_sock_t *sock, hc_data_t *data) { + hc_sock_vpp_data_t *s = (hc_sock_vpp_data_t *)sock->data; + + int retval = -1; // VAPI_OK; + + hc_vapi_interface_t *vpp_interfaces_vec = NULL; + vector_init(vpp_interfaces_vec, 0, 0); + + vapi_lock(); + + vapi_msg_sw_interface_dump *msg = + vapi_alloc_sw_interface_dump(s->g_vapi_ctx_instance); + if (!msg) { + retval = VAPI_ENOMEM; + goto ERR_MSG; + } + msg->payload.sw_if_index = ~0; + msg->payload.name_filter_valid = 0; + + /* Retrieve the list of interfaces in vpp_interfaces_vec */ + int ret = + vapi_sw_interface_dump(s->g_vapi_ctx_instance, msg, + on_listener_list_complete_cb, &vpp_interfaces_vec); + + if (ret != VAPI_OK) goto ERR_LIST_INTERFACES; + + /* Query the forwarder for each interface */ + // stored in data->buffer == hc_vapi_interface_t* [] + // 2 calls for each interface + // + // This function is called twice for each interface, to get resp. the v4 and + // v6 IP addresses associated to it: + // ip_address_dump(sw_if_index, is_ipv6) + // + // Function call : + // vapi_msg_XXX *msg = vapi_alloc_XXX(s->g_vapi_ctx_instance); + // msg->payload.ATTR = VALUE; + // [...] + // int ret = vapi_XXX((s->g_vapi_ctx_instance, msg, CALLBACK, USER_DATA); + // + // CALLBACK = process_ip_info + // USER_DATA = data2 + // + // We can assume the callbacks are executed before the function returns, and + // that there is no async code. + // + int rc; + + hc_vapi_interface_t *interface; + vapi_msg_ip_address_dump *msg2; + + struct listener_data_s ld; + vector_foreach(vpp_interfaces_vec, interface, { + memset(&ld, 0, sizeof(struct listener_data_s)); + ld.listener.type = FACE_TYPE_HICN; + rc = snprintf(ld.listener.interface_name, INTERFACE_LEN, "%s", + interface->interface_name); + if (rc < 0 || rc >= INTERFACE_LEN) goto ERR_FOREACH; + + ld.data = data; + + for (unsigned i = 0; i < 2; i++) { + msg2 = vapi_alloc_ip_address_dump(s->g_vapi_ctx_instance); + msg2->payload.sw_if_index = interface->swif; + msg2->payload.is_ipv6 = i; + retval = vapi_ip_address_dump(s->g_vapi_ctx_instance, msg2, + process_ip_info, &ld); + if (ret != VAPI_OK) goto ERR_GET_IP; + } + }); + retval = 0; +ERR_GET_IP: +ERR_FOREACH: + vector_free(vpp_interfaces_vec); +ERR_LIST_INTERFACES: +ERR_MSG: + vapi_unlock(); + return retval; +} + +#define vpp_listener_create NULL +#define vpp_listener_delete NULL + +static int vpp_listener_list(hc_sock_t *sock, hc_object_t *object, + hc_data_t *data) { + assert(!object || hc_object_is_empty(object)); + return _vpp_listener_list(sock, data); +} + +DECLARE_VPP_MODULE_OBJECT_OPS(vpp, listener); diff --git a/ctrl/libhicnctrl/src/modules/hicn_plugin/listener.h b/ctrl/libhicnctrl/src/modules/hicn_plugin/listener.h new file mode 100644 index 000000000..f75c58db6 --- /dev/null +++ b/ctrl/libhicnctrl/src/modules/hicn_plugin/listener.h @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2021 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. + */ + +/** + * \file modules/hicn_plugin/listener.h + * \brief listener object VFT for hicn_plugin. + */ + +#ifndef HICNCTRL_MODULE_VPP_LISTENER_H +#define HICNCTRL_MODULE_VPP_LISTENER_H + +#include "../../module.h" + +DECLARE_MODULE_OBJECT_OPS_H(vpp, listener); + +#endif /* HICNCTRL_MODULE_VPP_LISTENER_H */ diff --git a/ctrl/libhicnctrl/src/modules/hicn_plugin/route.c b/ctrl/libhicnctrl/src/modules/hicn_plugin/route.c new file mode 100644 index 000000000..45aced9cb --- /dev/null +++ b/ctrl/libhicnctrl/src/modules/hicn_plugin/route.c @@ -0,0 +1,541 @@ +/* + * Copyright (c) 2021 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. + */ + +/** + * \file modules/hicn_plugin/route.c + * \brief Implementation of route object VFT for hicn_plugin. + */ + +#include "base.h" +#include "route.h" + +static vapi_error_e create_udp_tunnel_cb( + vapi_ctx_t ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_hicn_api_udp_tunnel_add_del_reply *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + if (reply->retval != VAPI_OK) return reply->retval; + + u32 *uei = (u32 *)callback_ctx; + *uei = reply->uei; + + return reply->retval; +} + +static vapi_error_e parse_route_create( + vapi_ctx_t ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_ip_route_add_del_reply *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + if (reply->retval != VAPI_OK) return reply->retval; + + return reply->retval; +} + +static vapi_error_e hicn_enable_cb( + vapi_ctx_t ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_hicn_api_enable_disable_reply *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + face_id_t *faceid = (face_id_t *)callback_ctx; + + if (reply->nfaces) { + *faceid = reply->faceids[0]; + } + + return reply->retval; +} + +static int _vpp_route_create(hc_sock_t *sock, hc_route_t *route) { + if (!IS_VALID_FAMILY(route->family)) return -1; + + hc_sock_vpp_data_t *s = (hc_sock_vpp_data_t *)sock->data; + int ret = -1; + vapi_lock(); + + vapi_msg_ip_route_add_del *msg = + vapi_alloc_ip_route_add_del(s->g_vapi_ctx_instance, 1); + + msg->payload.is_add = 1; + if (route->family == AF_INET) { + memcpy(&msg->payload.route.prefix.address.un.ip4[0], &route->remote_addr.v4, + 4); + msg->payload.route.prefix.address.af = ADDRESS_IP4; + msg->payload.route.paths[0].proto = FIB_API_PATH_NH_PROTO_IP4; + } else { + memcpy(&msg->payload.route.prefix.address.un.ip6[0], &route->remote_addr.v6, + 16); + msg->payload.route.prefix.address.af = ADDRESS_IP6; + msg->payload.route.paths[0].proto = FIB_API_PATH_NH_PROTO_IP6; + } + + msg->payload.route.prefix.len = route->len; + + msg->payload.route.paths[0].sw_if_index = ~0; + msg->payload.route.paths[0].table_id = 0; + + hc_face_t *face = &(route->face); + + face->netdevice.index = ~0; + face->id = INVALID_FACE_ID; + + switch (face->type) { + case FACE_TYPE_HICN: { + if (hicn_ip_address_is_v4(&(face->remote_addr))) { + memcpy(&(msg->payload.route.paths[0].nh.address.ip4), + &face->remote_addr.v4, sizeof(ip4_address_t)); + msg->payload.route.paths[0].proto = FIB_API_PATH_NH_PROTO_IP4; + } else { + memcpy(&(msg->payload.route.paths[0].nh.address.ip6), + &face->remote_addr.v6, sizeof(ip6_address_t)); + msg->payload.route.paths[0].proto = FIB_API_PATH_NH_PROTO_IP6; + } + + msg->payload.route.paths[0].type = FIB_API_PATH_TYPE_NORMAL; + msg->payload.route.paths[0].flags = FIB_API_PATH_FLAG_NONE; + + break; + } + case FACE_TYPE_UDP: { + vapi_msg_hicn_api_udp_tunnel_add_del *msg2 = NULL; + u32 uei = ~0; + + if (hicn_ip_address_is_v4(&(face->remote_addr)) && + hicn_ip_address_is_v4(&(face->local_addr))) { + msg2 = vapi_alloc_hicn_api_udp_tunnel_add_del(s->g_vapi_ctx_instance); + memcpy(msg2->payload.src_addr.un.ip4, &face->local_addr.v4, + sizeof(ip4_address_t)); + msg2->payload.src_addr.af = ADDRESS_IP4; + + memcpy(msg2->payload.dst_addr.un.ip4, &face->remote_addr.v4, + sizeof(ip4_address_t)); + msg2->payload.dst_addr.af = ADDRESS_IP4; + + } else if (!hicn_ip_address_is_v4(&(route->face.remote_addr)) && + !hicn_ip_address_is_v4(&(route->face.local_addr))) { + msg2 = vapi_alloc_hicn_api_udp_tunnel_add_del(s->g_vapi_ctx_instance); + memcpy(msg2->payload.src_addr.un.ip6, &face->local_addr.v6, + sizeof(ip6_address_t)); + msg2->payload.src_addr.af = ADDRESS_IP6; + + memcpy(msg2->payload.dst_addr.un.ip6, &face->remote_addr.v6, + sizeof(ip6_address_t)); + msg2->payload.dst_addr.af = ADDRESS_IP6; + } else { + // NOT IMPLEMENTED + ret = -1; + goto done; + } + + msg2->payload.src_port = face->local_port; + msg2->payload.dst_port = face->remote_port; + msg2->payload.is_add = 1; + + int ret = vapi_hicn_api_udp_tunnel_add_del(s->g_vapi_ctx_instance, msg2, + create_udp_tunnel_cb, &uei); + + if (ret) { + ERROR("Error in vapi_hicn_api_udp_tunnel_add_del"); + vapi_msg_free(s->g_vapi_ctx_instance, msg); + goto done; + } + + msg->payload.route.paths[0].type = FIB_API_PATH_TYPE_UDP_ENCAP; + msg->payload.route.paths[0].flags = FIB_API_PATH_FLAG_NONE; + msg->payload.route.paths[0].nh.obj_id = uei; + + face->netdevice.index = uei; + + break; + } + default: + ret = -1; + goto done; + } + + ret = vapi_ip_route_add_del(s->g_vapi_ctx_instance, msg, parse_route_create, + NULL); + + if (ret) { + ERROR("Error in vapi_ip_route_add_del"); + goto done; + } + + vapi_msg_hicn_api_enable_disable *msg3 = + vapi_alloc_hicn_api_enable_disable(s->g_vapi_ctx_instance); + + if (route->family == AF_INET) { + memcpy(&msg3->payload.prefix.address.un.ip4[0], &route->remote_addr.v4, 4); + msg3->payload.prefix.address.af = ADDRESS_IP4; + } else { + memcpy(&msg3->payload.prefix.address.un.ip6[0], &route->remote_addr.v6, 16); + msg3->payload.prefix.address.af = ADDRESS_IP6; + } + + msg3->payload.prefix.len = route->len; + msg3->payload.enable_disable = 1; + + ret = vapi_hicn_api_enable_disable(s->g_vapi_ctx_instance, msg3, + hicn_enable_cb, &face->id); + + if (ret) { + ERROR("Error in vapi_hicn_api_enable_disable"); + } + +done: + vapi_unlock(); + return ret; +} + +static vapi_error_e hicn_disable_cb( + vapi_ctx_t ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_hicn_api_enable_disable_reply *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + return reply->retval; +} + +static vapi_error_e parse_route_delete( + vapi_ctx_t ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_ip_route_add_del_reply *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + return reply->retval; +} + +static int _vpp_route_delete(hc_sock_t *sock, hc_route_t *route) { + if (!IS_VALID_FAMILY(route->family)) return -1; + + hc_sock_vpp_data_t *s = (hc_sock_vpp_data_t *)sock->data; + + vapi_lock(); + + vapi_msg_hicn_api_enable_disable *msg = + vapi_alloc_hicn_api_enable_disable(s->g_vapi_ctx_instance); + + if (route->family == AF_INET) { + memcpy(&msg->payload.prefix.address.un.ip4[0], &route->remote_addr.v4, 4); + msg->payload.prefix.address.af = ADDRESS_IP4; + } else { + memcpy(&msg->payload.prefix.address.un.ip6[0], &route->remote_addr.v6, 16); + msg->payload.prefix.address.af = ADDRESS_IP6; + } + + msg->payload.prefix.len = route->len; + msg->payload.enable_disable = 0; + + vapi_error_e ret = vapi_hicn_api_enable_disable(s->g_vapi_ctx_instance, msg, + hicn_disable_cb, NULL); + + if (ret) { + ERROR("Error in vapi_hicn_api_enable_disable in route delete"); + goto done; + } + + vapi_msg_ip_route_add_del *msg2 = + vapi_alloc_ip_route_add_del(s->g_vapi_ctx_instance, 1); + + msg2->payload.is_add = 0; + if (route->family == AF_INET) { + memcpy(&msg2->payload.route.prefix.address.un.ip4[0], + &route->remote_addr.v4, 4); + msg2->payload.route.prefix.address.af = ADDRESS_IP4; + } else { + memcpy(&msg2->payload.route.prefix.address.un.ip6[0], + &route->remote_addr.v6, 16); + msg2->payload.route.prefix.address.af = ADDRESS_IP6; + } + + msg2->payload.route.prefix.len = route->len; + + msg2->payload.route.paths[0].sw_if_index = ~0; + msg2->payload.route.paths[0].table_id = 0; + + hc_face_t *face = &(route->face); + switch (face->type) { + case FACE_TYPE_HICN: { + if (hicn_ip_address_is_v4(&(face->remote_addr))) { + memcpy(&(msg2->payload.route.paths[0].nh.address.ip4), + &face->remote_addr.v4, sizeof(ip4_address_t)); + msg2->payload.route.paths[0].proto = FIB_API_PATH_NH_PROTO_IP4; + } else { + memcpy(&(msg2->payload.route.paths[0].nh.address.ip6), + &face->remote_addr.v6, sizeof(ip6_address_t)); + msg2->payload.route.paths[0].proto = FIB_API_PATH_NH_PROTO_IP6; + } + + msg2->payload.route.paths[0].type = FIB_API_PATH_TYPE_NORMAL; + msg2->payload.route.paths[0].flags = FIB_API_PATH_FLAG_NONE; + + break; + } + case FACE_TYPE_UDP: { + msg2->payload.route.paths[0].type = FIB_API_PATH_TYPE_UDP_ENCAP; + msg2->payload.route.paths[0].flags = FIB_API_PATH_FLAG_NONE; + msg2->payload.route.paths[0].nh.obj_id = face->netdevice.index; + break; + } + default: + return -1; + } + + ret = vapi_ip_route_add_del(s->g_vapi_ctx_instance, msg2, parse_route_delete, + NULL); + + if (ret) { + ERROR("Error in vapi_ip_route_add_del in route delete"); + goto done; + } + +done: + + vapi_unlock(); + return ret; +} + +/* ROUTE LIST */ + +static vapi_error_e parse_udp_encap_list( + vapi_ctx_t ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_udp_encap_details *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + hc_face_t *face = (hc_face_t *)callback_ctx; + + if (face->netdevice.index == reply->udp_encap.id) { + switch (reply->udp_encap.src_ip.af) { + case ADDRESS_IP4: { + memcpy(&face->local_addr.v4, &(reply->udp_encap.src_ip.un.ip4), + sizeof(ip4_address_t)); + memcpy(&face->remote_addr.v4, &(reply->udp_encap.dst_ip.un.ip4), + sizeof(ip4_address_t)); + break; + } + case ADDRESS_IP6: { + memcpy(&face->local_addr.v6, &(reply->udp_encap.src_ip.un.ip6), + sizeof(ip6_address_t)); + memcpy(&face->remote_addr.v6, &(reply->udp_encap.dst_ip.un.ip6), + sizeof(ip6_address_t)); + break; + } + default: + break; + } + + face->local_port = reply->udp_encap.src_port; + face->remote_port = reply->udp_encap.dst_port; + } + return rv; +} + +static int _fill_face_with_info(hc_face_t *face, vapi_type_fib_path *path) { + switch (path->type) { + case FIB_API_PATH_FLAG_NONE: { + face->type = FACE_TYPE_HICN; + switch (path->proto) { + case FIB_API_PATH_NH_PROTO_IP4: + memcpy(&face->remote_addr.v4, &(path->nh.address.ip4), + sizeof(ipv4_address_t)); + break; + case FIB_API_PATH_NH_PROTO_IP6: + memcpy(&face->remote_addr.v6, &(path->nh.address.ip6), + sizeof(ipv6_address_t)); + break; + default: + break; + } + face->netdevice.index = path->sw_if_index; + } break; + case FIB_API_PATH_TYPE_UDP_ENCAP: { + face->type = FACE_TYPE_UDP; + face->netdevice.index = clib_net_to_host_u32(path->nh.obj_id); + // Let's make the compiler happy + (void)parse_udp_encap_list; + // vapi_msg_udp_encap_dump *msg; + // msg = vapi_alloc_udp_encap_dump(s->g_vapi_ctx_instance); + // vapi_udp_encap_dump(s->g_vapi_ctx_instance, msg, parse_udp_encap_list, + // face); + } break; + default: + return -1; + } + return 0; +} + +static vapi_error_e parse_route_list(vapi_ctx_t ctx, void *callback_ctx, + vapi_error_e rv, bool is_last, + vapi_payload_ip_route_details *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + // XXX DEBUG XXX + if (reply && is_last) printf("COUCOU\n"); + + if (is_last) return 0; + + hc_data_t *data = (hc_data_t *)callback_ctx; + + /* + * Implementation: + * A route has n paths... we iterate for each path and search for a + * corresponding face in the hc_data_t result struct... and we fill the face + * info with the route path. + * + * TODO + * - comment on paths + * - explain the jump to END, this was previously implemented with a + * boolean flags skipping all remaining tests in the function... + */ + for (int j = 0; j < reply->route.n_paths; j++) { + hc_data_foreach(data, obj, { + hc_route_t *route = &obj->route; + + if (hicn_ip_address_is_v4(&(route->remote_addr)) && + memcmp(route->remote_addr.v4.as_u8, + reply->route.prefix.address.un.ip4, + sizeof(ipv4_address_t)) == 0 && + route->len == reply->route.prefix.len && route->face_id == ~0) { + _fill_face_with_info(&(route->face), &reply->route.paths[j]); + goto END; + + } else if (memcmp(route->remote_addr.v6.as_u8, + reply->route.prefix.address.un.ip6, + sizeof(ipv6_address_t)) == 0 && + route->len == reply->route.prefix.len && + route->face_id == ~0) { + _fill_face_with_info(&(route->face), &reply->route.paths[j]); + goto END; + } + }); + } + +END: + return rv; +} + +/** + * Populates the hc_data_t structure passed as the context with... + */ +static vapi_error_e parse_hicn_route_list( + vapi_ctx_t ctx, void *callback_ctx, vapi_error_e rv, bool is_last, + vapi_payload_hicn_api_routes_details *reply) { + if (reply == NULL || rv != VAPI_OK) return rv; + + if (reply && is_last) printf("COUCOU\n"); + if (is_last) return 0; + + hc_data_t *data = (hc_data_t *)callback_ctx; + + for (int i = 0; i < reply->nfaces; i++) { + hc_route_t route; + memset(&route, 0, sizeof(hc_route_t)); + + /* + * We set the face_id to ~0 to act as a marker in parse_route_list that + * the route is missing face information. + */ + route.face_id = ~0; + route.cost = 1; + route.len = reply->prefix.len; + if (reply->prefix.address.af == ADDRESS_IP6) { + memcpy(route.remote_addr.v6.as_u8, reply->prefix.address.un.ip6, 16); + route.family = AF_INET6; + } else { + memcpy(route.remote_addr.v4.as_u8, reply->prefix.address.un.ip4, 4); + route.family = AF_INET; + } + + hc_data_push(data, &route); + } + + return rv; +} + +/* + * hicn_api_routes_dump + * ip_route_dump + * + * @returns hc_data_t<hc_route_t> + */ +static int _vpp_route_list(hc_sock_t *sock, hc_data_t *data) { + int ret; + hc_sock_vpp_data_t *s = (hc_sock_vpp_data_t *)sock->data; + + vapi_lock(); + + /* Start by retrieving hicn routes (we have no face information at this + * stage)... */ + vapi_msg_hicn_api_routes_dump *msg; + msg = vapi_alloc_hicn_api_routes_dump(s->g_vapi_ctx_instance); + if (!msg) goto ERR_MSG; + + ret = vapi_hicn_api_routes_dump(s->g_vapi_ctx_instance, msg, + parse_hicn_route_list, data); + if (ret != VAPI_OK) goto ERR_API; + + /* + * ... an complement them using IP (v4 and v6 routes). Similar routes will + * be aggregated, based on IP prefix, in parse_*_route_list. + */ + vapi_msg_ip_route_dump *msg2; + for (unsigned i = 0; i < 2; i++) { + msg2 = vapi_alloc_ip_route_dump(s->g_vapi_ctx_instance); + if (!msg2) goto ERR_MSG; + + msg2->payload.table.table_id = 0; + msg2->payload.table.is_ip6 = i; + + ret = vapi_ip_route_dump(s->g_vapi_ctx_instance, msg2, parse_route_list, + data); + if (ret != VAPI_OK) goto ERR_API; + } + + goto END; + +ERR_MSG: + ret = VAPI_ENOMEM; + goto END; + +ERR_API: +END: + vapi_unlock(); + return ret; +} + +static int vpp_route_create(hc_sock_t *sock, hc_object_t *object, + hc_data_t *data) { + int rc = _vpp_route_create(sock, &object->route); + if (rc < 0) + hc_data_set_complete(data); + else + hc_data_set_error(data); + return rc; +} + +static int vpp_route_delete(hc_sock_t *sock, hc_object_t *object, + hc_data_t *data) { + int rc = _vpp_route_delete(sock, &object->route); + if (rc < 0) + hc_data_set_complete(data); + else + hc_data_set_error(data); + return rc; +} + +static int vpp_route_list(hc_sock_t *sock, hc_object_t *object, + hc_data_t *data) { + assert(!object || hc_object_is_empty(object)); + return _vpp_route_list(sock, data); +} + +DECLARE_VPP_MODULE_OBJECT_OPS(vpp, route); diff --git a/ctrl/libhicnctrl/src/modules/hicn_plugin/route.h b/ctrl/libhicnctrl/src/modules/hicn_plugin/route.h new file mode 100644 index 000000000..652d3e89a --- /dev/null +++ b/ctrl/libhicnctrl/src/modules/hicn_plugin/route.h @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2021 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. + */ + +/** + * \file modules/hicn_plugin/route.h + * \brief route object VFT for hicn_plugin. + */ + +#ifndef HICNCTRL_MODULE_VPP_ROUTE_H +#define HICNCTRL_MODULE_VPP_ROUTE_H + +#include "../../module.h" + +DECLARE_MODULE_OBJECT_OPS_H(vpp, route); + +#endif /* HICNCTRL_MODULE_VPP_ROUTE_H */ |