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Diffstat (limited to 'net/tipc/netlink.c')
| -rw-r--r-- | net/tipc/netlink.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c new file mode 100644 index 000000000..7f6475efc --- /dev/null +++ b/net/tipc/netlink.c @@ -0,0 +1,178 @@ +/* + * 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 <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, } +}; + +/* 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_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_link_get, + .dumpit = tipc_nl_link_dump, + .policy = tipc_nl_policy, + }, + { + .cmd = TIPC_NL_LINK_SET, + .doit = tipc_nl_link_set, + .policy = tipc_nl_policy, + }, + { + .cmd = TIPC_NL_LINK_RESET_STATS, + .doit = tipc_nl_link_reset_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, + } +}; + +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); +} |