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

/* SPDX-License-Identifier: LGPL-2.1+ */

#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, NetDev *netdev) {
        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_LINKINFO 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 = netlink_call_async(netdev->manager->rtnl, NULL, req, netdev_bridge_set_handler,
                               netdev_destroy_callback, netdev);
        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
540eb5f0	3	#include <net/if.h>
6235b3de	4
6235b3de	5	#include "missing.h"
540eb5f0	6	#include "netlink-util.h"
441e9ae4	7	#include "netdev/bridge.h"
23f53b99	8	#include "networkd-manager.h"
0d6c68eb	9	#include "vlan-util.h"
540eb5f0 SS	10
540eb5f0 SS	11	/* callback for brige netdev's parameter set */
302a796f	12	static int netdev_bridge_set_handler(sd_netlink rtnl, sd_netlink_message m, NetDev *netdev) {
540eb5f0 SS	13	int r;
	14
	15	assert(netdev);
	16	assert(m);
	17
	18	r = sd_netlink_message_get_errno(m);
	19	if (r < 0) {
	20	log_netdev_warning_errno(netdev, r, "Bridge parameters could not be set: %m");
	21	return 1;
	22	}
	23
82936769	24	log_netdev_debug(netdev, "Bridge parameters set success");
540eb5f0 SS	25
	26	return 1;
	27	}
	28
	29	static int netdev_bridge_post_create(NetDev netdev, Link link, sd_netlink_message *m) {
4afd3348	30	_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
540eb5f0 SS	31	Bridge *b;
	32	int r;
	33
	34	assert(netdev);
	35
	36	b = BRIDGE(netdev);
	37
	38	assert(b);
	39
	40	r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_NEWLINK, netdev->ifindex);
	41	if (r < 0)
	42	return log_netdev_error_errno(netdev, r, "Could not allocate RTM_SETLINK message: %m");
	43
	44	r = sd_netlink_message_set_flags(req, NLM_F_REQUEST \| NLM_F_ACK);
	45	if (r < 0)
	46	return log_link_error_errno(link, r, "Could not set netlink flags: %m");
	47
	48	r = sd_netlink_message_open_container(req, IFLA_LINKINFO);
	49	if (r < 0)
15cdaeee	50	return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m");
540eb5f0 SS	51
	52	r = sd_netlink_message_open_container_union(req, IFLA_INFO_DATA, netdev_kind_to_string(netdev->kind));
	53	if (r < 0)
	54	return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");
	55
1a14863e	56	/* convert to jiffes */
730389b6	57	if (b->forward_delay != USEC_INFINITY) {
1a14863e	58	r = sd_netlink_message_append_u32(req, IFLA_BR_FORWARD_DELAY, usec_to_jiffies(b->forward_delay));
540eb5f0 SS	59	if (r < 0)
	60	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_FORWARD_DELAY attribute: %m");
	61	}
	62
	63	if (b->hello_time > 0) {
1a14863e	64	r = sd_netlink_message_append_u32(req, IFLA_BR_HELLO_TIME, usec_to_jiffies(b->hello_time));
540eb5f0 SS	65	if (r < 0)
	66	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_HELLO_TIME attribute: %m");
	67	}
	68
	69	if (b->max_age > 0) {
1a14863e	70	r = sd_netlink_message_append_u32(req, IFLA_BR_MAX_AGE, usec_to_jiffies(b->max_age));
540eb5f0 SS	71	if (r < 0)
	72	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MAX_AGE attribute: %m");
	73	}
	74
0da81203	75	if (b->ageing_time != USEC_INFINITY) {
c7440e74 TJ	76	r = sd_netlink_message_append_u32(req, IFLA_BR_AGEING_TIME, usec_to_jiffies(b->ageing_time));
	77	if (r < 0)
	78	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_AGEING_TIME attribute: %m");
	79	}
	80
	81	if (b->priority > 0) {
	82	r = sd_netlink_message_append_u16(req, IFLA_BR_PRIORITY, b->priority);
	83	if (r < 0)
	84	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_PRIORITY attribute: %m");
	85	}
	86
c4819961 JC	87	if (b->group_fwd_mask > 0) {
	88	r = sd_netlink_message_append_u16(req, IFLA_BR_GROUP_FWD_MASK, b->group_fwd_mask);
	89	if (r < 0)
	90	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_GROUP_FWD_MASK attribute: %m");
	91	}
	92
0d6c68eb	93	if (b->default_pvid != VLANID_INVALID) {
c7440e74 TJ	94	r = sd_netlink_message_append_u16(req, IFLA_BR_VLAN_DEFAULT_PVID, b->default_pvid);
	95	if (r < 0)
	96	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_DEFAULT_PVID attribute: %m");
	97	}
	98
3fef7a3f SS	99	if (b->mcast_querier >= 0) {
	100	r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_QUERIER, b->mcast_querier);
	101	if (r < 0)
	102	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_QUERIER attribute: %m");
	103	}
	104
6df6d898 SS	105	if (b->mcast_snooping >= 0) {
	106	r = sd_netlink_message_append_u8(req, IFLA_BR_MCAST_SNOOPING, b->mcast_snooping);
	107	if (r < 0)
	108	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_MCAST_SNOOPING attribute: %m");
	109	}
	110
c6f8d17d TJ	111	if (b->vlan_filtering >= 0) {
	112	r = sd_netlink_message_append_u8(req, IFLA_BR_VLAN_FILTERING, b->vlan_filtering);
	113	if (r < 0)
	114	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_VLAN_FILTERING attribute: %m");
	115	}
	116
b760a9af SS	117	if (b->stp >= 0) {
	118	r = sd_netlink_message_append_u32(req, IFLA_BR_STP_STATE, b->stp);
	119	if (r < 0)
	120	return log_netdev_error_errno(netdev, r, "Could not append IFLA_BR_STP_STATE attribute: %m");
	121	}
	122
540eb5f0 SS	123	r = sd_netlink_message_close_container(req);
	124	if (r < 0)
	125	return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m");
	126
	127	r = sd_netlink_message_close_container(req);
	128	if (r < 0)
	129	return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m");
	130
302a796f YW	131	r = netlink_call_async(netdev->manager->rtnl, NULL, req, netdev_bridge_set_handler,
302a796f YW	132	netdev_destroy_callback, netdev);
540eb5f0 SS	133	if (r < 0)
	134	return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m");
	135
	136	netdev_ref(netdev);
	137
	138	return r;
	139	}
6235b3de	140
3fef7a3f SS	141	static void bridge_init(NetDev *n) {
	142	Bridge *b;
	143
	144	b = BRIDGE(n);
	145
	146	assert(b);
	147
	148	b->mcast_querier = -1;
6df6d898	149	b->mcast_snooping = -1;
c6f8d17d	150	b->vlan_filtering = -1;
b760a9af	151	b->stp = -1;
0d6c68eb	152	b->default_pvid = VLANID_INVALID;
730389b6	153	b->forward_delay = USEC_INFINITY;
0da81203	154	b->ageing_time = USEC_INFINITY;
3fef7a3f SS	155	}
3fef7a3f SS	156
3be1d7e0	157	const NetDevVTable bridge_vtable = {
aa9f1140	158	.object_size = sizeof(Bridge),
3fef7a3f	159	.init = bridge_init,
540eb5f0 SS	160	.sections = "Match\0NetDev\0Bridge\0",
540eb5f0 SS	161	.post_create = netdev_bridge_post_create,
aa9f1140	162	.create_type = NETDEV_CREATE_MASTER,
3be1d7e0	163	};