[thirdparty/iw.git] / ibss.c

#include <errno.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;

	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--;
		}
	}

	/* 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--;
	}

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