[thirdparty/iw.git] / ibss.c

#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE
#endif
#include <errno.h>
#include <string.h>
#include <strings.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;
	int i;
	static const struct {
		const char *name;
		unsigned int val;
	} htmap[] = {
		{ .name = "HT20", .val = NL80211_CHAN_HT20, },
		{ .name = "HT40+", .val = NL80211_CHAN_HT40PLUS, },
		{ .name = "HT40-", .val = NL80211_CHAN_HT40MINUS, },
		{ .name = "NOHT", .val = NL80211_CHAN_NO_HT, },
	};
	unsigned int htval;

	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) {
		for (i = 0; i < ARRAY_SIZE(htmap); i++) {
			if (strcasecmp(htmap[i].name, argv[0]) == 0) {
				htval = htmap[i].val;
				break;
			}
		}
		if (i != ARRAY_SIZE(htmap)) {
			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
				    htval);
			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> [HT20|HT40+|HT40-|NOHT] [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>
135cb523	6	#include <strings.h>
edea4d14 JB	7
	8	#include <netlink/genl/genl.h>
	9	#include <netlink/genl/family.h>
	10	#include <netlink/genl/ctrl.h>
	11	#include <netlink/msg.h>
	12	#include <netlink/attr.h>
	13
	14	#include "nl80211.h"
	15	#include "iw.h"
	16
4698bfc2 JB	17	SECTION(ibss);
4698bfc2 JB	18
edea4d14 JB	19	static int join_ibss(struct nl80211_state *state,
	20	struct nl_cb *cb,
	21	struct nl_msg *msg,
	22	int argc, char **argv)
	23	{
95940df3	24	char *end;
edea4d14	25	unsigned char abssid[6];
6a24bb22 TP	26	unsigned char rates[NL80211_MAX_SUPP_RATES];
	27	int n_rates = 0;
	28	char value = NULL, sptr = NULL;
	29	float rate;
ec46ba52	30	int bintval;
135cb523 SW	31	int i;
	32	static const struct {
	33	const char *name;
	34	unsigned int val;
	35	} htmap[] = {
	36	{ .name = "HT20", .val = NL80211_CHAN_HT20, },
	37	{ .name = "HT40+", .val = NL80211_CHAN_HT40PLUS, },
	38	{ .name = "HT40-", .val = NL80211_CHAN_HT40MINUS, },
	39	{ .name = "NOHT", .val = NL80211_CHAN_NO_HT, },
	40	};
	41	unsigned int htval;
edea4d14	42
95940df3 JB	43	if (argc < 2)
95940df3 JB	44	return 1;
edea4d14	45
95940df3 JB	46	/* SSID */
95940df3 JB	47	NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]);
edea4d14 JB	48	argv++;
	49	argc--;
	50
95940df3 JB	51	/* freq */
	52	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
	53	strtoul(argv[0], &end, 10));
	54	if (*end != '\0')
	55	return 1;
	56	argv++;
	57	argc--;
edea4d14	58
135cb523 SW	59	if (argc) {
	60	for (i = 0; i < ARRAY_SIZE(htmap); i++) {
	61	if (strcasecmp(htmap[i].name, argv[0]) == 0) {
	62	htval = htmap[i].val;
	63	break;
	64	}
	65	}
	66	if (i != ARRAY_SIZE(htmap)) {
	67	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
	68	htval);
	69	argv++;
	70	argc--;
	71	}
	72
	73	}
	74
95940df3 JB	75	if (argc && strcmp(argv[0], "fixed-freq") == 0) {
	76	NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED);
	77	argv++;
	78	argc--;
edea4d14 JB	79	}
edea4d14 JB	80
95940df3	81	if (argc) {
51e9bd80 JB	82	if (mac_addr_a2n(abssid, argv[0]) == 0) {
	83	NLA_PUT(msg, NL80211_ATTR_MAC, 6, abssid);
	84	argv++;
	85	argc--;
	86	}
edea4d14 JB	87	}
edea4d14 JB	88
ec46ba52 BR	89	if (argc > 1 && strcmp(argv[0], "beacon-interval") == 0) {
	90	argv++;
	91	argc--;
	92	bintval = strtoul(argv[0], &end, 10);
	93	if (*end != '\0')
	94	return 1;
	95	NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, bintval);
	96	argv++;
	97	argc--;
	98	}
	99
6a24bb22 TP	100	/* basic rates */
	101	if (argc > 1 && strcmp(argv[0], "basic-rates") == 0) {
	102	argv++;
	103	argc--;
	104
	105	value = strtok_r(argv[0], ",", &sptr);
	106
	107	while (value && n_rates < NL80211_MAX_SUPP_RATES) {
	108	rate = strtod(value, &end);
	109	rates[n_rates] = rate * 2;
	110
	111	/* filter out suspicious values */
	112	if (*end != '\0' \|\| !rates[n_rates] \|\|
	113	rate*2 != rates[n_rates])
	114	return 1;
	115
	116	n_rates++;
	117	value = strtok_r(NULL, ",", &sptr);
	118	}
	119
	120	NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, n_rates, rates);
	121
	122	argv++;
	123	argc--;
	124	}
	125
506b442b FF	126	/* multicast rate */
	127	if (argc > 1 && strcmp(argv[0], "mcast-rate") == 0) {
	128	argv++;
	129	argc--;
	130
	131	rate = strtod(argv[0], &end);
	132	if (*end != '\0')
	133	return 1;
	134
e399be8c	135	NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10));
506b442b FF	136	argv++;
	137	argc--;
	138	}
	139
1e03690e JB	140	if (!argc)
1e03690e JB	141	return 0;
edea4d14	142
1e03690e JB	143	if (strcmp(argv, "key") != 0 && strcmp(argv, "keys") != 0)
1e03690e JB	144	return 1;
ded1f078	145
1e03690e JB	146	argv++;
1e03690e JB	147	argc--;
51e9bd80	148
1e03690e	149	return parse_keys(msg, argv, argc);
edea4d14 JB	150	nla_put_failure:
	151	return -ENOSPC;
	152	}
	153
	154	static int leave_ibss(struct nl80211_state *state,
	155	struct nl_cb *cb,
	156	struct nl_msg *msg,
	157	int argc, char **argv)
	158	{
	159	return 0;
	160	}
	161	COMMAND(ibss, leave, NULL,
806bad30 JB	162	NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
806bad30 JB	163	"Leave the current IBSS cell.");
6a24bb22	164	COMMAND(ibss, join,
135cb523	165	"<SSID> <freq in MHz> [HT20\|HT40+\|HT40-\|NOHT] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
506b442b FF	166	" [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] "
506b442b FF	167	"[key d:0:abcde]",
806bad30 JB	168	NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,
	169	"Join the IBSS cell with the given SSID, if it doesn't exist create\n"
	170	"it on the given frequency. When fixed frequency is requested, don't\n"
	171	"join/create a cell on a different frequency. When a fixed BSSID is\n"
	172	"requested use that BSSID and do not adopt another cell's BSSID even\n"
ec46ba52	173	"if it has higher TSF and the same SSID. If an IBSS is created, create\n"
506b442b	174	"it with the specified basic-rates, multicast-rate and beacon-interval.");