| /* |
| * net/tipc/netlink.c: TIPC configuration handling |
| * |
| * Copyright (c) 2005-2006, 2014, Ericsson AB |
| * Copyright (c) 2005-2007, Wind River Systems |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the names of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "core.h" |
| #include "socket.h" |
| #include "name_table.h" |
| #include "bearer.h" |
| #include "link.h" |
| #include "node.h" |
| #include "net.h" |
| #include "udp_media.h" |
| #include <net/genetlink.h> |
| |
| static const struct nla_policy tipc_nl_policy[TIPC_NLA_MAX + 1] = { |
| [TIPC_NLA_UNSPEC] = { .type = NLA_UNSPEC, }, |
| [TIPC_NLA_BEARER] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_SOCK] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_PUBL] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_LINK] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_MEDIA] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_NODE] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_NET] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_NAME_TABLE] = { .type = NLA_NESTED, }, |
| [TIPC_NLA_MON] = { .type = NLA_NESTED, }, |
| }; |
| |
| const struct nla_policy |
| tipc_nl_name_table_policy[TIPC_NLA_NAME_TABLE_MAX + 1] = { |
| [TIPC_NLA_NAME_TABLE_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_NAME_TABLE_PUBL] = { .type = NLA_NESTED } |
| }; |
| |
| const struct nla_policy tipc_nl_monitor_policy[TIPC_NLA_MON_MAX + 1] = { |
| [TIPC_NLA_MON_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_MON_REF] = { .type = NLA_U32 }, |
| [TIPC_NLA_MON_ACTIVATION_THRESHOLD] = { .type = NLA_U32 }, |
| }; |
| |
| const struct nla_policy tipc_nl_sock_policy[TIPC_NLA_SOCK_MAX + 1] = { |
| [TIPC_NLA_SOCK_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_SOCK_ADDR] = { .type = NLA_U32 }, |
| [TIPC_NLA_SOCK_REF] = { .type = NLA_U32 }, |
| [TIPC_NLA_SOCK_CON] = { .type = NLA_NESTED }, |
| [TIPC_NLA_SOCK_HAS_PUBL] = { .type = NLA_FLAG } |
| }; |
| |
| const struct nla_policy tipc_nl_net_policy[TIPC_NLA_NET_MAX + 1] = { |
| [TIPC_NLA_NET_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_NET_ID] = { .type = NLA_U32 }, |
| [TIPC_NLA_NET_ADDR] = { .type = NLA_U32 }, |
| }; |
| |
| const struct nla_policy tipc_nl_link_policy[TIPC_NLA_LINK_MAX + 1] = { |
| [TIPC_NLA_LINK_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_LINK_NAME] = { .type = NLA_STRING, |
| .len = TIPC_MAX_LINK_NAME }, |
| [TIPC_NLA_LINK_MTU] = { .type = NLA_U32 }, |
| [TIPC_NLA_LINK_BROADCAST] = { .type = NLA_FLAG }, |
| [TIPC_NLA_LINK_UP] = { .type = NLA_FLAG }, |
| [TIPC_NLA_LINK_ACTIVE] = { .type = NLA_FLAG }, |
| [TIPC_NLA_LINK_PROP] = { .type = NLA_NESTED }, |
| [TIPC_NLA_LINK_STATS] = { .type = NLA_NESTED }, |
| [TIPC_NLA_LINK_RX] = { .type = NLA_U32 }, |
| [TIPC_NLA_LINK_TX] = { .type = NLA_U32 } |
| }; |
| |
| const struct nla_policy tipc_nl_node_policy[TIPC_NLA_NODE_MAX + 1] = { |
| [TIPC_NLA_NODE_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_NODE_ADDR] = { .type = NLA_U32 }, |
| [TIPC_NLA_NODE_UP] = { .type = NLA_FLAG } |
| }; |
| |
| /* Properties valid for media, bearer and link */ |
| const struct nla_policy tipc_nl_prop_policy[TIPC_NLA_PROP_MAX + 1] = { |
| [TIPC_NLA_PROP_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_PROP_PRIO] = { .type = NLA_U32 }, |
| [TIPC_NLA_PROP_TOL] = { .type = NLA_U32 }, |
| [TIPC_NLA_PROP_WIN] = { .type = NLA_U32 } |
| }; |
| |
| const struct nla_policy tipc_nl_bearer_policy[TIPC_NLA_BEARER_MAX + 1] = { |
| [TIPC_NLA_BEARER_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_BEARER_NAME] = { .type = NLA_STRING, |
| .len = TIPC_MAX_BEARER_NAME }, |
| [TIPC_NLA_BEARER_PROP] = { .type = NLA_NESTED }, |
| [TIPC_NLA_BEARER_DOMAIN] = { .type = NLA_U32 } |
| }; |
| |
| const struct nla_policy tipc_nl_media_policy[TIPC_NLA_MEDIA_MAX + 1] = { |
| [TIPC_NLA_MEDIA_UNSPEC] = { .type = NLA_UNSPEC }, |
| [TIPC_NLA_MEDIA_NAME] = { .type = NLA_STRING }, |
| [TIPC_NLA_MEDIA_PROP] = { .type = NLA_NESTED } |
| }; |
| |
| const struct nla_policy tipc_nl_udp_policy[TIPC_NLA_UDP_MAX + 1] = { |
| [TIPC_NLA_UDP_UNSPEC] = {.type = NLA_UNSPEC}, |
| [TIPC_NLA_UDP_LOCAL] = {.type = NLA_BINARY, |
| .len = sizeof(struct sockaddr_storage)}, |
| [TIPC_NLA_UDP_REMOTE] = {.type = NLA_BINARY, |
| .len = sizeof(struct sockaddr_storage)}, |
| }; |
| |
| /* Users of the legacy API (tipc-config) can't handle that we add operations, |
| * so we have a separate genl handling for the new API. |
| */ |
| struct genl_family tipc_genl_family = { |
| .id = GENL_ID_GENERATE, |
| .name = TIPC_GENL_V2_NAME, |
| .version = TIPC_GENL_V2_VERSION, |
| .hdrsize = 0, |
| .maxattr = TIPC_NLA_MAX, |
| .netnsok = true, |
| }; |
| |
| static const struct genl_ops tipc_genl_v2_ops[] = { |
| { |
| .cmd = TIPC_NL_BEARER_DISABLE, |
| .doit = tipc_nl_bearer_disable, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_BEARER_ENABLE, |
| .doit = tipc_nl_bearer_enable, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_BEARER_GET, |
| .doit = tipc_nl_bearer_get, |
| .dumpit = tipc_nl_bearer_dump, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_BEARER_ADD, |
| .doit = tipc_nl_bearer_add, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_BEARER_SET, |
| .doit = tipc_nl_bearer_set, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_SOCK_GET, |
| .dumpit = tipc_nl_sk_dump, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_PUBL_GET, |
| .dumpit = tipc_nl_publ_dump, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_LINK_GET, |
| .doit = tipc_nl_node_get_link, |
| .dumpit = tipc_nl_node_dump_link, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_LINK_SET, |
| .doit = tipc_nl_node_set_link, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_LINK_RESET_STATS, |
| .doit = tipc_nl_node_reset_link_stats, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_MEDIA_GET, |
| .doit = tipc_nl_media_get, |
| .dumpit = tipc_nl_media_dump, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_MEDIA_SET, |
| .doit = tipc_nl_media_set, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_NODE_GET, |
| .dumpit = tipc_nl_node_dump, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_NET_GET, |
| .dumpit = tipc_nl_net_dump, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_NET_SET, |
| .doit = tipc_nl_net_set, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_NAME_TABLE_GET, |
| .dumpit = tipc_nl_name_table_dump, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_MON_SET, |
| .doit = tipc_nl_node_set_monitor, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_MON_GET, |
| .doit = tipc_nl_node_get_monitor, |
| .dumpit = tipc_nl_node_dump_monitor, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_MON_PEER_GET, |
| .dumpit = tipc_nl_node_dump_monitor_peer, |
| .policy = tipc_nl_policy, |
| }, |
| { |
| .cmd = TIPC_NL_PEER_REMOVE, |
| .doit = tipc_nl_peer_rm, |
| .policy = tipc_nl_policy, |
| }, |
| #ifdef CONFIG_TIPC_MEDIA_UDP |
| { |
| .cmd = TIPC_NL_UDP_GET_REMOTEIP, |
| .dumpit = tipc_udp_nl_dump_remoteip, |
| .policy = tipc_nl_policy, |
| }, |
| #endif |
| }; |
| |
| int tipc_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr ***attr) |
| { |
| u32 maxattr = tipc_genl_family.maxattr; |
| |
| *attr = tipc_genl_family.attrbuf; |
| if (!*attr) |
| return -EOPNOTSUPP; |
| |
| return nlmsg_parse(nlh, GENL_HDRLEN, *attr, maxattr, tipc_nl_policy); |
| } |
| |
| int tipc_netlink_start(void) |
| { |
| int res; |
| |
| res = genl_register_family_with_ops(&tipc_genl_family, |
| tipc_genl_v2_ops); |
| if (res) { |
| pr_err("Failed to register netlink interface\n"); |
| return res; |
| } |
| return 0; |
| } |
| |
| void tipc_netlink_stop(void) |
| { |
| genl_unregister_family(&tipc_genl_family); |
| } |