[people/ms/rstp.git] / brstate.c

/*
 * brstate.c	RTnetlink port state change
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 * Authors:	Stephen Hemminger <shemminger@osdl.org>
 *
 *              Modified by Srinivas Aji <Aji_Srinivas@emc.com> for use
 *              in RSTP daemon. - 2006-09-01
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <net/if.h>
#include <netinet/in.h>
#include <linux/if_bridge.h>
#include <string.h>

#include "libnetlink.h"

static int br_set_state(struct rtnl_handle *rth, unsigned ifindex, __u8 state)
{
	struct {
		struct nlmsghdr n;
		struct ifinfomsg ifi;
		char buf[256];
	} req;

	memset(&req, 0, sizeof(req));

	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
	req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_REPLACE;
	req.n.nlmsg_type = RTM_SETLINK;
	req.ifi.ifi_family = AF_BRIDGE;
	req.ifi.ifi_index = ifindex;

	addattr32(&req.n, sizeof(req.buf), IFLA_PROTINFO, state);

	return rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL);
}

static int br_send_bpdu(struct rtnl_handle *rth, unsigned ifindex,
			const unsigned char *data, int len)
{
	struct {
		struct nlmsghdr n;
		struct ifinfomsg ifi;
		char buf[256];
	} req;

	memset(&req, 0, sizeof(req));

	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
	req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_REPLACE;
	req.n.nlmsg_type = RTM_SETLINK;
	req.ifi.ifi_family = AF_BRIDGE;
	req.ifi.ifi_index = ifindex;

	addattr_l(&req.n, sizeof(req.buf), IFLA_PRIORITY, data, len);

	return rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL);
}

#include "bridge_ctl.h"

extern struct rtnl_handle rth_state;

int bridge_set_state(int ifindex, int brstate)
{
	int err = br_set_state(&rth_state, ifindex, brstate);
	if (err < 0) {
		fprintf(stderr,
			"Couldn't set bridge state, ifindex %d, state %d\n",
			ifindex, brstate);
		return -1;
	}
	return 0;
}

int bridge_send_bpdu(int ifindex, const unsigned char *data, int len)
{
	int err = br_send_bpdu(&rth_state, ifindex, data, len);
	if (err < 0) {
		fprintf(stderr, "Couldn't send bpdu, ifindex %d\n", ifindex);
		return -1;
	}
	return 0;
}
Commit	Line	Data
ad02a0eb SH	1	/*
	2	* brstate.c RTnetlink port state change
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*
	9	* Authors: Stephen Hemminger <shemminger@osdl.org>
	10	*
	11	* Modified by Srinivas Aji <Aji_Srinivas@emc.com> for use
	12	* in RSTP daemon. - 2006-09-01
	13	*/
	14
	15	#include <stdio.h>
	16	#include <stdlib.h>
	17	#include <unistd.h>
	18	#include <syslog.h>
	19	#include <fcntl.h>
	20	#include <sys/socket.h>
	21	#include <sys/time.h>
	22	#include <net/if.h>
	23	#include <netinet/in.h>
	24	#include <linux/if_bridge.h>
	25	#include <string.h>
	26
	27	#include "libnetlink.h"
	28
ad02a0eb SH	29	static int br_set_state(struct rtnl_handle *rth, unsigned ifindex, __u8 state)
	30	{
	31	struct {
11904a35 SH	32	struct nlmsghdr n;
	33	struct ifinfomsg ifi;
	34	char buf[256];
ad02a0eb SH	35	} req;
	36
	37	memset(&req, 0, sizeof(req));
	38
	39	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
11904a35	40	req.n.nlmsg_flags = NLM_F_REQUEST \| NLM_F_REPLACE;
ad02a0eb SH	41	req.n.nlmsg_type = RTM_SETLINK;
	42	req.ifi.ifi_family = AF_BRIDGE;
	43	req.ifi.ifi_index = ifindex;
	44
	45	addattr32(&req.n, sizeof(req.buf), IFLA_PROTINFO, state);
11904a35	46
ad02a0eb SH	47	return rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL);
	48	}
	49
	50	static int br_send_bpdu(struct rtnl_handle *rth, unsigned ifindex,
11904a35	51	const unsigned char *data, int len)
ad02a0eb SH	52	{
ad02a0eb SH	53	struct {
11904a35 SH	54	struct nlmsghdr n;
	55	struct ifinfomsg ifi;
	56	char buf[256];
ad02a0eb SH	57	} req;
	58
	59	memset(&req, 0, sizeof(req));
	60
	61	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
11904a35	62	req.n.nlmsg_flags = NLM_F_REQUEST \| NLM_F_REPLACE;
ad02a0eb SH	63	req.n.nlmsg_type = RTM_SETLINK;
	64	req.ifi.ifi_family = AF_BRIDGE;
	65	req.ifi.ifi_index = ifindex;
	66
	67	addattr_l(&req.n, sizeof(req.buf), IFLA_PRIORITY, data, len);
11904a35	68
ad02a0eb SH	69	return rtnl_talk(rth, &req.n, 0, 0, NULL, NULL, NULL);
	70	}
	71
ad02a0eb SH	72	#include "bridge_ctl.h"
	73
	74	extern struct rtnl_handle rth_state;
	75
	76	int bridge_set_state(int ifindex, int brstate)
	77	{
11904a35 SH	78	int err = br_set_state(&rth_state, ifindex, brstate);
	79	if (err < 0) {
	80	fprintf(stderr,
	81	"Couldn't set bridge state, ifindex %d, state %d\n",
	82	ifindex, brstate);
	83	return -1;
	84	}
	85	return 0;
ad02a0eb SH	86	}
	87
	88	int bridge_send_bpdu(int ifindex, const unsigned char *data, int len)
	89	{
11904a35 SH	90	int err = br_send_bpdu(&rth_state, ifindex, data, len);
	91	if (err < 0) {
	92	fprintf(stderr, "Couldn't send bpdu, ifindex %d\n", ifindex);
	93	return -1;
	94	}
	95	return 0;
ad02a0eb	96	}