[thirdparty/iw.git] / ibss.c

#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE
#endif
#include <errno.h>
#include <string.h>

#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include <netlink/msg.h>
#include <netlink/attr.h>

#include "nl80211.h"
#include "iw.h"

SECTION(ibss);

static int join_ibss(struct nl80211_state *state,
		     struct nl_cb *cb,
		     struct nl_msg *msg,
		     int argc, char **argv)
{
	char *end;
	unsigned char abssid[6];
	unsigned char rates[NL80211_MAX_SUPP_RATES];
	int n_rates = 0;
	char *value = NULL, *sptr = NULL;
	float rate;
	int bintval;

	if (argc < 2)
		return 1;

	/* SSID */
	NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]);
	argv++;
	argc--;

	/* freq */
	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
		    strtoul(argv[0], &end, 10));
	if (*end != '\0')
		return 1;
	argv++;
	argc--;

	if (argc && strcmp(argv[0], "fixed-freq") == 0) {
		NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED);
		argv++;
		argc--;
	}

	if (argc) {
		if (mac_addr_a2n(abssid, argv[0]) == 0) {
			NLA_PUT(msg, NL80211_ATTR_MAC, 6, abssid);
			argv++;
			argc--;
		}
	}

	if (argc > 1 && strcmp(argv[0], "beacon-interval") == 0) {
		argv++;
		argc--;
		bintval = strtoul(argv[0], &end, 10);
		if (*end != '\0')
			return 1;
		NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, bintval);
		argv++;
		argc--;
	}

	/* basic rates */
	if (argc > 1 && strcmp(argv[0], "basic-rates") == 0) {
		argv++;
		argc--;

		value = strtok_r(argv[0], ",", &sptr);

		while (value && n_rates < NL80211_MAX_SUPP_RATES) {
			rate = strtod(value, &end);
			rates[n_rates] = rate * 2;

			/* filter out suspicious values  */
			if (*end != '\0' || !rates[n_rates] ||
			    rate*2 != rates[n_rates])
				return 1;

			n_rates++;
			value = strtok_r(NULL, ",", &sptr);
		}

		NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, n_rates, rates);

		argv++;
		argc--;
	}

	/* multicast rate */
	if (argc > 1 && strcmp(argv[0], "mcast-rate") == 0) {
		argv++;
		argc--;

		rate = strtod(argv[0], &end);
		if (*end != '\0')
			return 1;

		NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10));
		argv++;
		argc--;
	}

	if (!argc)
		return 0;

	if (strcmp(*argv, "key") != 0 && strcmp(*argv, "keys") != 0)
		return 1;

	argv++;
	argc--;

	return parse_keys(msg, argv, argc);
 nla_put_failure:
	return -ENOSPC;
}

static int leave_ibss(struct nl80211_state *state,
		      struct nl_cb *cb,
		      struct nl_msg *msg,
		      int argc, char **argv)
{
	return 0;
}
COMMAND(ibss, leave, NULL,
	NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
	"Leave the current IBSS cell.");
COMMAND(ibss, join,
	"<SSID> <freq in MHz> [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
	" [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] "
	"[key d:0:abcde]",
	NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,
	"Join the IBSS cell with the given SSID, if it doesn't exist create\n"
	"it on the given frequency. When fixed frequency is requested, don't\n"
	"join/create a cell on a different frequency. When a fixed BSSID is\n"
	"requested use that BSSID and do not adopt another cell's BSSID even\n"
	"if it has higher TSF and the same SSID. If an IBSS is created, create\n"
	"it with the specified basic-rates, multicast-rate and beacon-interval.");
Commit	Line	Data
b893686f JB	1	#ifndef _POSIX_SOURCE
	2	#define _POSIX_SOURCE
	3	#endif
edea4d14	4	#include <errno.h>
b893686f	5	#include <string.h>
edea4d14 JB	6
	7	#include <netlink/genl/genl.h>
	8	#include <netlink/genl/family.h>
	9	#include <netlink/genl/ctrl.h>
	10	#include <netlink/msg.h>
	11	#include <netlink/attr.h>
	12
	13	#include "nl80211.h"
	14	#include "iw.h"
	15
4698bfc2 JB	16	SECTION(ibss);
4698bfc2 JB	17
edea4d14 JB	18	static int join_ibss(struct nl80211_state *state,
	19	struct nl_cb *cb,
	20	struct nl_msg *msg,
	21	int argc, char **argv)
	22	{
95940df3	23	char *end;
edea4d14	24	unsigned char abssid[6];
6a24bb22 TP	25	unsigned char rates[NL80211_MAX_SUPP_RATES];
	26	int n_rates = 0;
	27	char value = NULL, sptr = NULL;
	28	float rate;
ec46ba52	29	int bintval;
edea4d14	30
95940df3 JB	31	if (argc < 2)
95940df3 JB	32	return 1;
edea4d14	33
95940df3 JB	34	/* SSID */
95940df3 JB	35	NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]);
edea4d14 JB	36	argv++;
	37	argc--;
	38
95940df3 JB	39	/* freq */
	40	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
	41	strtoul(argv[0], &end, 10));
	42	if (*end != '\0')
	43	return 1;
	44	argv++;
	45	argc--;
edea4d14	46
95940df3 JB	47	if (argc && strcmp(argv[0], "fixed-freq") == 0) {
	48	NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED);
	49	argv++;
	50	argc--;
edea4d14 JB	51	}
edea4d14 JB	52
95940df3	53	if (argc) {
51e9bd80 JB	54	if (mac_addr_a2n(abssid, argv[0]) == 0) {
	55	NLA_PUT(msg, NL80211_ATTR_MAC, 6, abssid);
	56	argv++;
	57	argc--;
	58	}
edea4d14 JB	59	}
edea4d14 JB	60
ec46ba52 BR	61	if (argc > 1 && strcmp(argv[0], "beacon-interval") == 0) {
	62	argv++;
	63	argc--;
	64	bintval = strtoul(argv[0], &end, 10);
	65	if (*end != '\0')
	66	return 1;
	67	NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, bintval);
	68	argv++;
	69	argc--;
	70	}
	71
6a24bb22 TP	72	/* basic rates */
	73	if (argc > 1 && strcmp(argv[0], "basic-rates") == 0) {
	74	argv++;
	75	argc--;
	76
	77	value = strtok_r(argv[0], ",", &sptr);
	78
	79	while (value && n_rates < NL80211_MAX_SUPP_RATES) {
	80	rate = strtod(value, &end);
	81	rates[n_rates] = rate * 2;
	82
	83	/* filter out suspicious values */
	84	if (*end != '\0' \|\| !rates[n_rates] \|\|
	85	rate*2 != rates[n_rates])
	86	return 1;
	87
	88	n_rates++;
	89	value = strtok_r(NULL, ",", &sptr);
	90	}
	91
	92	NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, n_rates, rates);
	93
	94	argv++;
	95	argc--;
	96	}
	97
506b442b FF	98	/* multicast rate */
	99	if (argc > 1 && strcmp(argv[0], "mcast-rate") == 0) {
	100	argv++;
	101	argc--;
	102
	103	rate = strtod(argv[0], &end);
	104	if (*end != '\0')
	105	return 1;
	106
e399be8c	107	NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10));
506b442b FF	108	argv++;
	109	argc--;
	110	}
	111
1e03690e JB	112	if (!argc)
1e03690e JB	113	return 0;
edea4d14	114
1e03690e JB	115	if (strcmp(argv, "key") != 0 && strcmp(argv, "keys") != 0)
1e03690e JB	116	return 1;
ded1f078	117
1e03690e JB	118	argv++;
1e03690e JB	119	argc--;
51e9bd80	120
1e03690e	121	return parse_keys(msg, argv, argc);
edea4d14 JB	122	nla_put_failure:
	123	return -ENOSPC;
	124	}
	125
	126	static int leave_ibss(struct nl80211_state *state,
	127	struct nl_cb *cb,
	128	struct nl_msg *msg,
	129	int argc, char **argv)
	130	{
	131	return 0;
	132	}
	133	COMMAND(ibss, leave, NULL,
806bad30 JB	134	NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
806bad30 JB	135	"Leave the current IBSS cell.");
6a24bb22	136	COMMAND(ibss, join,
506b442b FF	137	"<SSID> <freq in MHz> [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
	138	" [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] "
	139	"[key d:0:abcde]",
806bad30 JB	140	NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,
	141	"Join the IBSS cell with the given SSID, if it doesn't exist create\n"
	142	"it on the given frequency. When fixed frequency is requested, don't\n"
	143	"join/create a cell on a different frequency. When a fixed BSSID is\n"
	144	"requested use that BSSID and do not adopt another cell's BSSID even\n"
ec46ba52	145	"if it has higher TSF and the same SSID. If an IBSS is created, create\n"
506b442b	146	"it with the specified basic-rates, multicast-rate and beacon-interval.");