[thirdparty/systemd.git] / src / network / netdev / bridge.c

/* SPDX-License-Identifier: LGPL-2.1+ */
/***
  Copyright © 2014  Tom Gundersen <teg@jklm.no>
  Copyright © 2014  Susant Sahani
***/

#include <net/if.h>

#include "missing.h"
#include "netlink-util.h"
#include "netdev/bridge.h"
#include "networkd-manager.h"
#include "vlan-util.h"

/* callback for brige netdev's parameter set */
static int netdev_bridge_set_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
        _cleanup_(netdev_unrefp) NetDev *netdev = userdata;
        int r;

        assert(netdev);
        assert(m);

        r = sd_netlink_message_get_errno(m);
        if (r < 0) {
                log_netdev_warning_errno(netdev, r, "Bridge parameters could not be set: %m");
                return 1;
        }

        log_netdev_debug(netdev, "Bridge parameters set success");

        return 1;
}

static int netdev_bridge_post_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
        _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
        Bridge *b;
        int r;

        assert(netdev);

        b = BRIDGE(netdev);

        assert(b);

        r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_NEWLINK, netdev->ifindex);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not allocate RTM_SETLINK message: %m");

        r = sd_netlink_message_set_flags(req, NLM_F_REQUEST | NLM_F_ACK);
        if (r < 0)
                return log_link_error_errno(link, r, "Could not set netlink flags: %m");

        r = sd_netlink_message_open_container(req, IFLA_LINKINFO);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_PROTINFO attribute: %m");

        r = sd_netlink_message_open_container_union(req, IFLA_INFO_DATA, netdev_kind_to_string(netdev->kind));
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");

        /* convert to jiffes */
        if (b->forward_delay != USEC_INFINITY) {
                r = sd_netlink_message_append_u32(req, IFLA_BR_FORWARD_DELAY, usec_to_jiffies(b->forward_delay));
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_FORWARD_DELAY attribute: %m");
        }

        if (b->hello_time > 0) {
                r = sd_netlink_message_append_u32(req, IFLA_BR_HELLO_TIME, usec_to_jiffies(b->hello_time));
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_HELLO_TIME attribute: %m");
        }

        if (b->max_age > 0) {
                r = sd_netlink_message_append_u32(req, IFLA_BR_MAX_AGE, usec_to_jiffies(b->max_age));
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MAX_AGE attribute: %m");
        }

        if (b->ageing_time != USEC_INFINITY) {
                r = sd_netlink_message_append_u32(req, IFLA_BR_AGEING_TIME, usec_to_jiffies(b->ageing_time));
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_AGEING_TIME attribute: %m");
        }

        if (b->priority > 0) {
                r = sd_netlink_message_append_u16(req, IFLA_BR_PRIORITY, b->priority);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_PRIORITY attribute: %m");
        }

        if (b->group_fwd_mask > 0) {
                r = sd_netlink_message_append_u16(req, IFLA_BR_GROUP_FWD_MASK, b->group_fwd_mask);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_GROUP_FWD_MASK attribute: %m");
        }

        if (b->default_pvid != VLANID_INVALID) {
                r = sd_netlink_message_append_u16(req, IFLA_BR_VLAN_DEFAULT_PVID, b->default_pvid);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_DEFAULT_PVID attribute: %m");
        }

        if (b->mcast_querier >= 0) {
                r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_QUERIER, b->mcast_querier);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_QUERIER attribute: %m");
        }

        if (b->mcast_snooping >= 0) {
                r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_SNOOPING, b->mcast_snooping);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_SNOOPING attribute: %m");
        }

        if (b->vlan_filtering >= 0) {
                r = sd_netlink_message_append_u8(req, IFLA_BR_VLAN_FILTERING, b->vlan_filtering);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_FILTERING attribute: %m");
        }

        if (b->stp >= 0) {
                r = sd_netlink_message_append_u32(req, IFLA_BR_STP_STATE, b->stp);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_STP_STATE attribute: %m");
        }

        r = sd_netlink_message_close_container(req);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m");

        r = sd_netlink_message_close_container(req);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");

        r = sd_netlink_call_async(netdev->manager->rtnl, req, netdev_bridge_set_handler, netdev, 0, NULL);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m");

        netdev_ref(netdev);

        return r;
}

static void bridge_init(NetDev *n) {
        Bridge *b;

        b = BRIDGE(n);

        assert(b);

        b->mcast_querier = -1;
        b->mcast_snooping = -1;
        b->vlan_filtering = -1;
        b->stp = -1;
        b->default_pvid = VLANID_INVALID;
        b->forward_delay = USEC_INFINITY;
        b->ageing_time = USEC_INFINITY;
}

const NetDevVTable bridge_vtable = {
        .object_size = sizeof(Bridge),
        .init = bridge_init,
        .sections = "Match\0NetDev\0Bridge\0",
        .post_create = netdev_bridge_post_create,
        .create_type = NETDEV_CREATE_MASTER,
};
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
6235b3de	2	/***
96b2fb93 LP	3	Copyright © 2014 Tom Gundersen <teg@jklm.no>
96b2fb93 LP	4	Copyright © 2014 Susant Sahani
6235b3de TG	5	***/
6235b3de TG	6
540eb5f0	7	#include <net/if.h>
6235b3de	8
6235b3de	9	#include "missing.h"
540eb5f0	10	#include "netlink-util.h"
441e9ae4	11	#include "netdev/bridge.h"
23f53b99	12	#include "networkd-manager.h"
0d6c68eb	13	#include "vlan-util.h"
540eb5f0 SS	14
	15	/* callback for brige netdev's parameter set */
	16	static int netdev_bridge_set_handler(sd_netlink rtnl, sd_netlink_message m, void *userdata) {
8e766630	17	_cleanup_(netdev_unrefp) NetDev *netdev = userdata;
540eb5f0 SS	18	int r;
	19
	20	assert(netdev);
	21	assert(m);
	22
	23	r = sd_netlink_message_get_errno(m);
	24	if (r < 0) {
	25	log_netdev_warning_errno(netdev, r, "Bridge parameters could not be set: %m");
	26	return 1;
	27	}
	28
82936769	29	log_netdev_debug(netdev, "Bridge parameters set success");
540eb5f0 SS	30
	31	return 1;
	32	}
	33
	34	static int netdev_bridge_post_create(NetDev netdev, Link link, sd_netlink_message *m) {
4afd3348	35	_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
540eb5f0 SS	36	Bridge *b;
	37	int r;
	38
	39	assert(netdev);
	40
	41	b = BRIDGE(netdev);
	42
	43	assert(b);
	44
	45	r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_NEWLINK, netdev->ifindex);
	46	if (r < 0)
	47	return log_netdev_error_errno(netdev, r, "Could not allocate RTM_SETLINK message: %m");
	48
	49	r = sd_netlink_message_set_flags(req, NLM_F_REQUEST \| NLM_F_ACK);
	50	if (r < 0)
	51	return log_link_error_errno(link, r, "Could not set netlink flags: %m");
	52
	53	r = sd_netlink_message_open_container(req, IFLA_LINKINFO);
	54	if (r < 0)
	55	return log_netdev_error_errno(netdev, r, "Could not append IFLA_PROTINFO attribute: %m");
	56
	57	r = sd_netlink_message_open_container_union(req, IFLA_INFO_DATA, netdev_kind_to_string(netdev->kind));
	58	if (r < 0)
	59	return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");
	60
1a14863e	61	/* convert to jiffes */
730389b6	62	if (b->forward_delay != USEC_INFINITY) {
1a14863e	63	r = sd_netlink_message_append_u32(req, IFLA_BR_FORWARD_DELAY, usec_to_jiffies(b->forward_delay));
540eb5f0 SS	64	if (r < 0)
	65	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_FORWARD_DELAY attribute: %m");
	66	}
	67
	68	if (b->hello_time > 0) {
1a14863e	69	r = sd_netlink_message_append_u32(req, IFLA_BR_HELLO_TIME, usec_to_jiffies(b->hello_time));
540eb5f0 SS	70	if (r < 0)
	71	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_HELLO_TIME attribute: %m");
	72	}
	73
	74	if (b->max_age > 0) {
1a14863e	75	r = sd_netlink_message_append_u32(req, IFLA_BR_MAX_AGE, usec_to_jiffies(b->max_age));
540eb5f0 SS	76	if (r < 0)
	77	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MAX_AGE attribute: %m");
	78	}
	79
0da81203	80	if (b->ageing_time != USEC_INFINITY) {
c7440e74 TJ	81	r = sd_netlink_message_append_u32(req, IFLA_BR_AGEING_TIME, usec_to_jiffies(b->ageing_time));
	82	if (r < 0)
	83	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_AGEING_TIME attribute: %m");
	84	}
	85
	86	if (b->priority > 0) {
	87	r = sd_netlink_message_append_u16(req, IFLA_BR_PRIORITY, b->priority);
	88	if (r < 0)
	89	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_PRIORITY attribute: %m");
	90	}
	91
c4819961 JC	92	if (b->group_fwd_mask > 0) {
	93	r = sd_netlink_message_append_u16(req, IFLA_BR_GROUP_FWD_MASK, b->group_fwd_mask);
	94	if (r < 0)
	95	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_GROUP_FWD_MASK attribute: %m");
	96	}
	97
0d6c68eb	98	if (b->default_pvid != VLANID_INVALID) {
c7440e74 TJ	99	r = sd_netlink_message_append_u16(req, IFLA_BR_VLAN_DEFAULT_PVID, b->default_pvid);
	100	if (r < 0)
	101	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_DEFAULT_PVID attribute: %m");
	102	}
	103
3fef7a3f SS	104	if (b->mcast_querier >= 0) {
	105	r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_QUERIER, b->mcast_querier);
	106	if (r < 0)
	107	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_QUERIER attribute: %m");
	108	}
	109
6df6d898 SS	110	if (b->mcast_snooping >= 0) {
	111	r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_SNOOPING, b->mcast_snooping);
	112	if (r < 0)
	113	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_SNOOPING attribute: %m");
	114	}
	115
c6f8d17d TJ	116	if (b->vlan_filtering >= 0) {
	117	r = sd_netlink_message_append_u8(req, IFLA_BR_VLAN_FILTERING, b->vlan_filtering);
	118	if (r < 0)
	119	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_FILTERING attribute: %m");
	120	}
	121
b760a9af SS	122	if (b->stp >= 0) {
	123	r = sd_netlink_message_append_u32(req, IFLA_BR_STP_STATE, b->stp);
	124	if (r < 0)
	125	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_STP_STATE attribute: %m");
	126	}
	127
540eb5f0 SS	128	r = sd_netlink_message_close_container(req);
	129	if (r < 0)
	130	return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m");
	131
	132	r = sd_netlink_message_close_container(req);
	133	if (r < 0)
	134	return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");
	135
	136	r = sd_netlink_call_async(netdev->manager->rtnl, req, netdev_bridge_set_handler, netdev, 0, NULL);
	137	if (r < 0)
	138	return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m");
	139
	140	netdev_ref(netdev);
	141
	142	return r;
	143	}
6235b3de	144
3fef7a3f SS	145	static void bridge_init(NetDev *n) {
	146	Bridge *b;
	147
	148	b = BRIDGE(n);
	149
	150	assert(b);
	151
	152	b->mcast_querier = -1;
6df6d898	153	b->mcast_snooping = -1;
c6f8d17d	154	b->vlan_filtering = -1;
b760a9af	155	b->stp = -1;
0d6c68eb	156	b->default_pvid = VLANID_INVALID;
730389b6	157	b->forward_delay = USEC_INFINITY;
0da81203	158	b->ageing_time = USEC_INFINITY;
3fef7a3f SS	159	}
3fef7a3f SS	160
3be1d7e0	161	const NetDevVTable bridge_vtable = {
aa9f1140	162	.object_size = sizeof(Bridge),
3fef7a3f	163	.init = bridge_init,
540eb5f0 SS	164	.sections = "Match\0NetDev\0Bridge\0",
540eb5f0 SS	165	.post_create = netdev_bridge_post_create,
aa9f1140	166	.create_type = NETDEV_CREATE_MASTER,
3be1d7e0	167	};