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net/tipc/netlink.c
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/* * net/tipc/netlink.c: TIPC configuration handling |
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* |
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* Copyright (c) 2005-2006, 2014, Ericsson AB |
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* Copyright (c) 2005-2007, Wind River Systems |
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* All rights reserved. * |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: * |
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* 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. |
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* |
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* 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 |
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* POSSIBILITY OF SUCH DAMAGE. */ #include "core.h" |
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#include "socket.h" |
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#include "name_table.h" |
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#include "bearer.h" |
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#include "link.h" |
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#include "node.h" |
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#include "net.h" |
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#include "udp_media.h" |
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#include <net/genetlink.h> |
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static const struct nla_policy tipc_nl_policy[TIPC_NLA_MAX + 1] = { [TIPC_NLA_UNSPEC] = { .type = NLA_UNSPEC, }, [TIPC_NLA_BEARER] = { .type = NLA_NESTED, }, |
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[TIPC_NLA_SOCK] = { .type = NLA_NESTED, }, |
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[TIPC_NLA_PUBL] = { .type = NLA_NESTED, }, [TIPC_NLA_LINK] = { .type = NLA_NESTED, }, |
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[TIPC_NLA_MEDIA] = { .type = NLA_NESTED, }, |
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[TIPC_NLA_NODE] = { .type = NLA_NESTED, }, |
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[TIPC_NLA_NET] = { .type = NLA_NESTED, }, |
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[TIPC_NLA_NAME_TABLE] = { .type = NLA_NESTED, }, [TIPC_NLA_MON] = { .type = NLA_NESTED, }, |
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}; |
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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 } }; |
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const struct nla_policy tipc_nl_monitor_policy[TIPC_NLA_MON_MAX + 1] = { [TIPC_NLA_MON_UNSPEC] = { .type = NLA_UNSPEC }, |
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[TIPC_NLA_MON_REF] = { .type = NLA_U32 }, |
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[TIPC_NLA_MON_ACTIVATION_THRESHOLD] = { .type = NLA_U32 }, }; |
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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 }, |
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[TIPC_NLA_NET_ID] = { .type = NLA_U32 }, [TIPC_NLA_NET_ADDR] = { .type = NLA_U32 }, |
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}; 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)}, }; |
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/* 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. */ |
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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, |
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}, { .cmd = TIPC_NL_BEARER_GET, .doit = tipc_nl_bearer_get, .dumpit = tipc_nl_bearer_dump, .policy = tipc_nl_policy, |
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}, { |
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.cmd = TIPC_NL_BEARER_ADD, .doit = tipc_nl_bearer_add, .policy = tipc_nl_policy, }, { |
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.cmd = TIPC_NL_BEARER_SET, .doit = tipc_nl_bearer_set, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_SOCK_GET, .dumpit = tipc_nl_sk_dump, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_PUBL_GET, .dumpit = tipc_nl_publ_dump, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_LINK_GET, |
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.doit = tipc_nl_node_get_link, |
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.dumpit = tipc_nl_node_dump_link, |
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.policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_LINK_SET, |
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.doit = tipc_nl_node_set_link, |
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.policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_LINK_RESET_STATS, |
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.doit = tipc_nl_node_reset_link_stats, |
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.policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_MEDIA_GET, .doit = tipc_nl_media_get, .dumpit = tipc_nl_media_dump, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_MEDIA_SET, .doit = tipc_nl_media_set, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_NODE_GET, .dumpit = tipc_nl_node_dump, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_NET_GET, .dumpit = tipc_nl_net_dump, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_NET_SET, .doit = tipc_nl_net_set, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_NAME_TABLE_GET, .dumpit = tipc_nl_name_table_dump, .policy = tipc_nl_policy, |
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}, { .cmd = TIPC_NL_MON_SET, .doit = tipc_nl_node_set_monitor, .policy = tipc_nl_policy, }, |
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{ .cmd = TIPC_NL_MON_GET, .doit = tipc_nl_node_get_monitor, |
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.dumpit = tipc_nl_node_dump_monitor, .policy = tipc_nl_policy, }, { .cmd = TIPC_NL_MON_PEER_GET, .dumpit = tipc_nl_node_dump_monitor_peer, |
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.policy = tipc_nl_policy, }, |
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{ .cmd = TIPC_NL_PEER_REMOVE, .doit = tipc_nl_peer_rm, .policy = tipc_nl_policy, |
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}, #ifdef CONFIG_TIPC_MEDIA_UDP { .cmd = TIPC_NL_UDP_GET_REMOTEIP, .dumpit = tipc_udp_nl_dump_remoteip, .policy = tipc_nl_policy, }, #endif |
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}; |
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struct genl_family tipc_genl_family __ro_after_init = { |
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.name = TIPC_GENL_V2_NAME, .version = TIPC_GENL_V2_VERSION, .hdrsize = 0, .maxattr = TIPC_NLA_MAX, .netnsok = true, .module = THIS_MODULE, .ops = tipc_genl_v2_ops, .n_ops = ARRAY_SIZE(tipc_genl_v2_ops), }; |
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int tipc_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr ***attr) { |
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u32 maxattr = tipc_genl_family.maxattr; |
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*attr = genl_family_attrbuf(&tipc_genl_family); |
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if (!*attr) return -EOPNOTSUPP; |
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return nlmsg_parse(nlh, GENL_HDRLEN, *attr, maxattr, tipc_nl_policy, NULL); |
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} |
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int __init tipc_netlink_start(void) |
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{ |
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int res; |
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res = genl_register_family(&tipc_genl_family); |
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if (res) { |
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pr_err("Failed to register netlink interface "); |
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return res; } |
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return 0; |
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} |
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void tipc_netlink_stop(void) |
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{ |
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genl_unregister_family(&tipc_genl_family); |
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} |