1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2014 Tom Gundersen <teg@jklm.no>
6 Copyright 2014 Susant Sahani
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include "netlink-util.h"
26 #include "netdev/bridge.h"
27 #include "networkd-manager.h"
28 #include "vlan-util.h"
30 /* callback for brige netdev's parameter set */
31 static int netdev_bridge_set_handler(sd_netlink
*rtnl
, sd_netlink_message
*m
, void *userdata
) {
32 _cleanup_netdev_unref_ NetDev
*netdev
= userdata
;
38 r
= sd_netlink_message_get_errno(m
);
40 log_netdev_warning_errno(netdev
, r
, "Bridge parameters could not be set: %m");
44 log_netdev_debug(netdev
, "Bridge parameters set success");
49 static int netdev_bridge_post_create(NetDev
*netdev
, Link
*link
, sd_netlink_message
*m
) {
50 _cleanup_(sd_netlink_message_unrefp
) sd_netlink_message
*req
= NULL
;
60 r
= sd_rtnl_message_new_link(netdev
->manager
->rtnl
, &req
, RTM_NEWLINK
, netdev
->ifindex
);
62 return log_netdev_error_errno(netdev
, r
, "Could not allocate RTM_SETLINK message: %m");
64 r
= sd_netlink_message_set_flags(req
, NLM_F_REQUEST
| NLM_F_ACK
);
66 return log_link_error_errno(link
, r
, "Could not set netlink flags: %m");
68 r
= sd_netlink_message_open_container(req
, IFLA_LINKINFO
);
70 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_PROTINFO attribute: %m");
72 r
= sd_netlink_message_open_container_union(req
, IFLA_INFO_DATA
, netdev_kind_to_string(netdev
->kind
));
74 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_INFO_DATA attribute: %m");
76 /* convert to jiffes */
77 if (b
->forward_delay
!= USEC_INFINITY
) {
78 r
= sd_netlink_message_append_u32(req
, IFLA_BR_FORWARD_DELAY
, usec_to_jiffies(b
->forward_delay
));
80 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_FORWARD_DELAY attribute: %m");
83 if (b
->hello_time
> 0) {
84 r
= sd_netlink_message_append_u32(req
, IFLA_BR_HELLO_TIME
, usec_to_jiffies(b
->hello_time
));
86 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_HELLO_TIME attribute: %m");
90 r
= sd_netlink_message_append_u32(req
, IFLA_BR_MAX_AGE
, usec_to_jiffies(b
->max_age
));
92 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_MAX_AGE attribute: %m");
95 if (b
->ageing_time
!= USEC_INFINITY
) {
96 r
= sd_netlink_message_append_u32(req
, IFLA_BR_AGEING_TIME
, usec_to_jiffies(b
->ageing_time
));
98 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_AGEING_TIME attribute: %m");
101 if (b
->priority
> 0) {
102 r
= sd_netlink_message_append_u16(req
, IFLA_BR_PRIORITY
, b
->priority
);
104 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_PRIORITY attribute: %m");
107 if (b
->group_fwd_mask
> 0) {
108 r
= sd_netlink_message_append_u16(req
, IFLA_BR_GROUP_FWD_MASK
, b
->group_fwd_mask
);
110 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_GROUP_FWD_MASK attribute: %m");
113 if (b
->default_pvid
!= VLANID_INVALID
) {
114 r
= sd_netlink_message_append_u16(req
, IFLA_BR_VLAN_DEFAULT_PVID
, b
->default_pvid
);
116 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_VLAN_DEFAULT_PVID attribute: %m");
119 if (b
->mcast_querier
>= 0) {
120 r
= sd_netlink_message_append_u8(req
, IFLA_BR_MCAST_QUERIER
, b
->mcast_querier
);
122 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_MCAST_QUERIER attribute: %m");
125 if (b
->mcast_snooping
>= 0) {
126 r
= sd_netlink_message_append_u8(req
, IFLA_BR_MCAST_SNOOPING
, b
->mcast_snooping
);
128 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_MCAST_SNOOPING attribute: %m");
131 if (b
->vlan_filtering
>= 0) {
132 r
= sd_netlink_message_append_u8(req
, IFLA_BR_VLAN_FILTERING
, b
->vlan_filtering
);
134 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_VLAN_FILTERING attribute: %m");
138 r
= sd_netlink_message_append_u32(req
, IFLA_BR_STP_STATE
, b
->stp
);
140 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_BR_STP_STATE attribute: %m");
143 r
= sd_netlink_message_close_container(req
);
145 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_LINKINFO attribute: %m");
147 r
= sd_netlink_message_close_container(req
);
149 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_INFO_DATA attribute: %m");
151 r
= sd_netlink_call_async(netdev
->manager
->rtnl
, req
, netdev_bridge_set_handler
, netdev
, 0, NULL
);
153 return log_netdev_error_errno(netdev
, r
, "Could not send rtnetlink message: %m");
160 static void bridge_init(NetDev
*n
) {
167 b
->mcast_querier
= -1;
168 b
->mcast_snooping
= -1;
169 b
->vlan_filtering
= -1;
171 b
->default_pvid
= VLANID_INVALID
;
172 b
->forward_delay
= USEC_INFINITY
;
173 b
->ageing_time
= USEC_INFINITY
;
176 const NetDevVTable bridge_vtable
= {
177 .object_size
= sizeof(Bridge
),
179 .sections
= "Match\0NetDev\0Bridge\0",
180 .post_create
= netdev_bridge_post_create
,
181 .create_type
= NETDEV_CREATE_MASTER
,