1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2013 Tom Gundersen <teg@jklm.no>
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include <linux/netlink.h>
32 struct reply_callback {
33 sd_rtnl_message_handler_t callback;
40 struct match_callback {
41 sd_rtnl_message_handler_t callback;
45 LIST_FIELDS(struct match_callback, match_callbacks);
55 struct sockaddr_nl nl;
58 sd_rtnl_message **rqueue;
61 sd_rtnl_message **wqueue;
68 struct Prioq *reply_callbacks_prioq;
69 Hashmap *reply_callbacks;
71 LIST_HEAD(struct match_callback, match_callbacks);
75 sd_event_source *io_event_source;
76 sd_event_source *time_event_source;
77 sd_event_source *exit_event_source;
81 #define RTNL_DEFAULT_TIMEOUT ((usec_t) (10 * USEC_PER_SEC))
83 #define RTNL_WQUEUE_MAX 1024
84 #define RTNL_RQUEUE_MAX 64*1024
86 #define RTNL_CONTAINER_DEPTH 32
88 int message_new_synthetic_error(int error, uint32_t serial, sd_rtnl_message **ret);
89 uint32_t message_get_serial(sd_rtnl_message *m);
90 int message_seal(sd_rtnl *nl, sd_rtnl_message *m);
92 bool message_type_is_link(uint16_t type);
93 bool message_type_is_addr(uint16_t type);
94 bool message_type_is_route(uint16_t type);
96 int socket_write_message(sd_rtnl *nl, sd_rtnl_message *m);
97 int socket_read_message(sd_rtnl *nl, sd_rtnl_message **ret);
99 /* Make sure callbacks don't destroy the rtnl connection */
100 #define RTNL_DONT_DESTROY(rtnl) \
101 _cleanup_sd_rtnl_unref_ _unused_ sd_rtnl *_dont_destroy_##rtnl = sd_rtnl_ref(rtnl)