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Diffstat (limited to 'net/tipc/netlink.c')
| -rw-r--r-- | net/tipc/netlink.c | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c new file mode 100644 index 000000000..1a9a5bdac --- /dev/null +++ b/net/tipc/netlink.c @@ -0,0 +1,315 @@ +/* + * 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 }, + [TIPC_NLA_NET_NODEID] = { .type = NLA_U64 }, + [TIPC_NLA_NET_NODEID_W1] = { .type = NLA_U64 }, + [TIPC_NLA_NET_ADDR_LEGACY] = { .type = NLA_FLAG } +}; + +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_NUL_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 }, + [TIPC_NLA_NODE_ID] = { .type = NLA_BINARY, + .len = TIPC_NODEID_LEN}, + [TIPC_NLA_NODE_KEY] = { .type = NLA_BINARY, + .len = TIPC_AEAD_KEY_SIZE_MAX}, + [TIPC_NLA_NODE_KEY_MASTER] = { .type = NLA_FLAG }, + [TIPC_NLA_NODE_REKEYING] = { .type = NLA_U32 }, +}; + +/* 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 }, + [TIPC_NLA_PROP_MTU] = { .type = NLA_U32 }, + [TIPC_NLA_PROP_BROADCAST] = { .type = NLA_U32 }, + [TIPC_NLA_PROP_BROADCAST_RATIO] = { .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_NUL_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. + */ +static const struct genl_ops tipc_genl_v2_ops[] = { + { + .cmd = TIPC_NL_BEARER_DISABLE, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_bearer_disable, + }, + { + .cmd = TIPC_NL_BEARER_ENABLE, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_bearer_enable, + }, + { + .cmd = TIPC_NL_BEARER_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_bearer_get, + .dumpit = tipc_nl_bearer_dump, + }, + { + .cmd = TIPC_NL_BEARER_ADD, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_bearer_add, + }, + { + .cmd = TIPC_NL_BEARER_SET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_bearer_set, + }, + { + .cmd = TIPC_NL_SOCK_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .start = tipc_dump_start, + .dumpit = tipc_nl_sk_dump, + .done = tipc_dump_done, + }, + { + .cmd = TIPC_NL_PUBL_GET, + .validate = GENL_DONT_VALIDATE_STRICT | + GENL_DONT_VALIDATE_DUMP_STRICT, + .dumpit = tipc_nl_publ_dump, + }, + { + .cmd = TIPC_NL_LINK_GET, + .validate = GENL_DONT_VALIDATE_STRICT, + .doit = tipc_nl_node_get_link, + .dumpit = tipc_nl_node_dump_link, + }, + { + .cmd = TIPC_NL_LINK_SET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_node_set_link, + }, + { + .cmd = TIPC_NL_LINK_RESET_STATS, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_node_reset_link_stats, + }, + { + .cmd = TIPC_NL_MEDIA_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_media_get, + .dumpit = tipc_nl_media_dump, + }, + { + .cmd = TIPC_NL_MEDIA_SET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_media_set, + }, + { + .cmd = TIPC_NL_NODE_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .dumpit = tipc_nl_node_dump, + }, + { + .cmd = TIPC_NL_NET_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .dumpit = tipc_nl_net_dump, + }, + { + .cmd = TIPC_NL_NET_SET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_net_set, + }, + { + .cmd = TIPC_NL_NAME_TABLE_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .dumpit = tipc_nl_name_table_dump, + }, + { + .cmd = TIPC_NL_MON_SET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_node_set_monitor, + }, + { + .cmd = TIPC_NL_MON_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_node_get_monitor, + .dumpit = tipc_nl_node_dump_monitor, + }, + { + .cmd = TIPC_NL_MON_PEER_GET, + .validate = GENL_DONT_VALIDATE_STRICT | + GENL_DONT_VALIDATE_DUMP_STRICT, + .dumpit = tipc_nl_node_dump_monitor_peer, + }, + { + .cmd = TIPC_NL_PEER_REMOVE, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_peer_rm, + }, +#ifdef CONFIG_TIPC_MEDIA_UDP + { + .cmd = TIPC_NL_UDP_GET_REMOTEIP, + .validate = GENL_DONT_VALIDATE_STRICT | + GENL_DONT_VALIDATE_DUMP_STRICT, + .dumpit = tipc_udp_nl_dump_remoteip, + }, +#endif +#ifdef CONFIG_TIPC_CRYPTO + { + .cmd = TIPC_NL_KEY_SET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_node_set_key, + }, + { + .cmd = TIPC_NL_KEY_FLUSH, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_node_flush_key, + }, +#endif + { + .cmd = TIPC_NL_ADDR_LEGACY_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = tipc_nl_net_addr_legacy_get, + }, +}; + +struct genl_family tipc_genl_family __ro_after_init = { + .name = TIPC_GENL_V2_NAME, + .version = TIPC_GENL_V2_VERSION, + .hdrsize = 0, + .maxattr = TIPC_NLA_MAX, + .policy = tipc_nl_policy, + .netnsok = true, + .module = THIS_MODULE, + .ops = tipc_genl_v2_ops, + .n_ops = ARRAY_SIZE(tipc_genl_v2_ops), + .resv_start_op = TIPC_NL_ADDR_LEGACY_GET + 1, +}; + +int __init tipc_netlink_start(void) +{ + int res; + + res = genl_register_family(&tipc_genl_family); + 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); +} |