From a0da41b243661a039481d2c254d7db8f55f18d2b Mon Sep 17 00:00:00 2001 From: Mauro Sardara Date: Mon, 23 Sep 2019 19:34:23 +0200 Subject: [HICN-279] Added libmemif packaging. Change-Id: Ie8662059163b7a01211bb18fb8f6b77bbbc07279 Signed-off-by: Mauro Sardara --- utils/extras/devices/rtnetlink/mapper.c | 270 -------------------------------- 1 file changed, 270 deletions(-) delete mode 100644 utils/extras/devices/rtnetlink/mapper.c (limited to 'utils/extras/devices/rtnetlink/mapper.c') diff --git a/utils/extras/devices/rtnetlink/mapper.c b/utils/extras/devices/rtnetlink/mapper.c deleted file mode 100644 index ed4fa5634..000000000 --- a/utils/extras/devices/rtnetlink/mapper.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * Copyright (c) 2016-2019 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 -#include -#include - -#include "netns.h" -#include "mapper.h" - -typedef struct { - int linux_ifindex; - u32 sw_if_index; -} mapper_map_t; - -typedef struct { - char nsname[RTNL_NETNS_NAMELEN + 1]; - mapper_map_t *mappings; - u32 netns_handle; //Used to receive notifications - u32 v4fib_index; //One fib index for the namespace - u32 v6fib_index; -} mapper_ns_t; - -typedef struct { - mapper_ns_t *namespaces; -} mapper_main_t; - -static mapper_main_t mapper_main; - -mapper_map_t *mapper_get_by_ifindex(mapper_ns_t *ns, int ifindex) -{ - mapper_map_t *map; - pool_foreach(map, ns->mappings, { - if (ifindex == map->linux_ifindex) - return map; - }); - return NULL; -} - -int mapper_add_del_route(mapper_ns_t *ns, ns_route_t *route, int del) -{ - mapper_main_t *mm = &mapper_main; - clib_warning("NS %d %s %U", ns - mm->namespaces, del?"del":"add", format_ns_route, route); - - mapper_map_t *map = mapper_get_by_ifindex(ns, route->oif); - if (!map) - return 0; - - if (route->rtm.rtm_family == AF_INET6) { - - //Filter-out multicast - if (route->rtm.rtm_dst_len >= 8 && route->dst[0] == 0xff) - return 0; - - fib_prefix_t prefix; - ip46_address_t nh; - - memset (&prefix, 0, sizeof (prefix)); - prefix.fp_len = route->rtm.rtm_dst_len; - prefix.fp_proto = FIB_PROTOCOL_IP6; - clib_memcpy (&prefix.fp_addr.ip6, route->dst, sizeof (prefix.fp_addr.ip6)); - - memset (&nh, 0, sizeof (nh)); - clib_memcpy (&nh.ip6, route->gateway, sizeof (nh.ip6)); - - fib_table_entry_path_add (ns->v6fib_index, &prefix, FIB_SOURCE_API, - FIB_ENTRY_FLAG_NONE, prefix.fp_proto, - &nh, map->sw_if_index, ns->v6fib_index, - 0 /* weight */, - (fib_mpls_label_t *) MPLS_LABEL_INVALID, - FIB_ROUTE_PATH_FLAG_NONE); - } else { - fib_prefix_t prefix; - ip46_address_t nh; - - memset (&prefix, 0, sizeof (prefix)); - prefix.fp_len = route->rtm.rtm_dst_len; - prefix.fp_proto = FIB_PROTOCOL_IP4; - clib_memcpy (&prefix.fp_addr.ip4, route->dst, sizeof (prefix.fp_addr.ip4)); - - memset (&nh, 0, sizeof (nh)); - clib_memcpy (&nh.ip4, route->gateway, sizeof (nh.ip4)); - - fib_table_entry_path_add (ns->v4fib_index, &prefix, FIB_SOURCE_API, - FIB_ENTRY_FLAG_NONE, prefix.fp_proto, - &nh, map->sw_if_index, ns->v4fib_index, - 0 /* weight */, - (fib_mpls_label_t *) MPLS_LABEL_INVALID, - FIB_ROUTE_PATH_FLAG_NONE); - } - - return 0; -} - -static void -mapper_netns_notify_cb(void *obj, netns_type_t type, - u32 flags, uword opaque) -{ - mapper_main_t *mm = &mapper_main; - mapper_ns_t *ns = &mm->namespaces[(u32) opaque]; - ASSERT(!pool_is_free_index(mm->namespaces, (u32) opaque)); - if (type != NETNS_TYPE_ROUTE) - return; //For now... - - ns_route_t *route = obj; - if (flags & NETNS_F_DEL) { - mapper_add_del_route(ns, route, 1); - } else if (flags & NETNS_F_ADD) { - mapper_add_del_route(ns, route, 0); - } -} - -void -mapper_delmap(mapper_ns_t*ns, mapper_map_t *map) -{ - ns_route_t *route; - netns_t *netns = netns_getns(ns->netns_handle); - pool_foreach(route, netns->routes, { - if (route->oif == map->linux_ifindex) - mapper_add_del_route(ns, route, 1); - }); - pool_put(ns->mappings, map); -} - -mapper_map_t * -mapper_getmap(mapper_ns_t*ns, u32 sw_if_index, - int linux_ifindex, int create) -{ - mapper_map_t *map; - pool_foreach(map, ns->mappings, { - if (linux_ifindex == map->linux_ifindex) { - if (sw_if_index != map->sw_if_index) - return NULL; //Cannot have multiple mapping with the same ifindex - else - return map; - } - }); - - if (!create) - return NULL; - - pool_get(ns->mappings, map); - map->linux_ifindex = linux_ifindex; - map->sw_if_index = sw_if_index; - ip6_main.fib_index_by_sw_if_index[sw_if_index] = ns->v6fib_index; - ip4_main.fib_index_by_sw_if_index[sw_if_index] = ns->v4fib_index; - - //Load available routes - ns_route_t *route; - netns_t *netns = netns_getns(ns->netns_handle); - pool_foreach(route, netns->routes, { - if (route->oif == map->linux_ifindex) - mapper_add_del_route(ns, route, 0); - }); - return map; -} - -u32 -mapper_get_ns(char *nsname) -{ - mapper_main_t *mm = &mapper_main; - mapper_ns_t *ns; - pool_foreach(ns, mm->namespaces, { - if (!strcmp(nsname, ns->nsname)) - return ns - mm->namespaces; - }); - return ~0; -} - -int -mapper_add_del(u32 nsindex, int linux_ifindex, - u32 sw_if_index, int del) -{ - mapper_main_t *mm = &mapper_main; - //ip6_main_t *im6 = &ip6_main; - mapper_ns_t *ns = &mm->namespaces[nsindex]; - mapper_map_t *map; - //vnet_sw_interface_t *iface = vnet_get_sw_interface(vnet_get_main(), sw_if_index); - - if (pool_is_free(mm->namespaces, ns)) - return -1; - - /*if (!del) { - if ((iface->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) && - im6->fib_index_by_sw_if_index[sw_if_index] != ~0) { - //A custom fib index will be used... - clib_warning("Cannot add interface with a custom fib index (current is %d)", - im6->fib_index_by_sw_if_index[sw_if_index]); - return -1; - } - }*/ - - if (!(map = mapper_getmap(ns, sw_if_index, linux_ifindex, !del))) - return -1; - - if (del) - mapper_delmap(ns, map); - - return 0; -} - -int -mapper_add_ns(char *nsname, u32 v4fib_index, u32 v6fib_index, u32 *nsindex) -{ - mapper_main_t *mm = &mapper_main; - mapper_ns_t *ns; - if (mapper_get_ns(nsname) != ~0) - return -1; //Already exists - - pool_get(mm->namespaces, ns); - strcpy(ns->nsname, nsname); - ns->v4fib_index = v4fib_index; - ns->v6fib_index = v6fib_index; - ns->mappings = 0; - - netns_sub_t sub; - sub.notify = mapper_netns_notify_cb; - sub.opaque = (uword)(ns - mm->namespaces); - if ((ns->netns_handle = netns_open(ns->nsname, &sub)) == ~0) { - pool_put(mm->namespaces, ns); - return -1; - } - *nsindex = ns - mm->namespaces; - return 0; -} - -int -mapper_del_ns(u32 nsindex) -{ - mapper_main_t *mm = &mapper_main; - mapper_ns_t *ns = &mm->namespaces[nsindex]; - if (pool_is_free(mm->namespaces, ns)) - return -1; - - //Remove all existing mappings - int i, *indexes = 0; - pool_foreach_index(i, ns->mappings, { - vec_add1(indexes, i); - }); - vec_foreach_index(i, indexes) { - mapper_delmap(ns, &ns->mappings[indexes[i]]); - } - vec_free(indexes); - - netns_close(ns->netns_handle); - pool_put(mm->namespaces, ns); - return 0; -} - -clib_error_t * -mapper_init (vlib_main_t * vm) -{ - mapper_main_t *mm = &mapper_main; - mm->namespaces = 0; - return 0; -} - -VLIB_INIT_FUNCTION (mapper_init); -- cgit 1.2.3-korg