Пример #1
0
static int wpa_supplicant_ctrl_iface_get_capability(
	struct wpa_supplicant *wpa_s, const char *_field, char *buf,
	size_t buflen)
{
	struct wpa_driver_capa capa;
	int res;
	char *strict;
	char field[30];
	size_t len;

	/* Determine whether or not strict checking was requested */
	len = os_strlcpy(field, _field, sizeof(field));
	if (len >= sizeof(field))
		return -1;
	strict = os_strchr(field, ' ');
	if (strict != NULL) {
		*strict++ = '\0';
		if (os_strcmp(strict, "strict") != 0)
			return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s",
		field, strict ? strict : "");

	if (os_strcmp(field, "eap") == 0) {
		return eap_get_names(buf, buflen);
	}

	res = wpa_drv_get_capa(wpa_s, &capa);

	if (os_strcmp(field, "pairwise") == 0)
		return ctrl_iface_get_capability_pairwise(res, strict, &capa,
							  buf, buflen);

	if (os_strcmp(field, "group") == 0)
		return ctrl_iface_get_capability_group(res, strict, &capa,
						       buf, buflen);

	if (os_strcmp(field, "key_mgmt") == 0)
		return ctrl_iface_get_capability_key_mgmt(res, strict, &capa,
							  buf, buflen);

	if (os_strcmp(field, "proto") == 0)
		return ctrl_iface_get_capability_proto(res, strict, &capa,
						       buf, buflen);

	if (os_strcmp(field, "auth_alg") == 0)
		return ctrl_iface_get_capability_auth_alg(res, strict, &capa,
							  buf, buflen);

	wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
		   field);

	return -1;
}
Пример #2
0
static int wpa_supplicant_ctrl_iface_get_capability(
	struct wpa_supplicant *wpa_s, const char *_field, char *buf,
	size_t buflen)
{
	struct wpa_driver_capa capa;
	int res, first = 1, ret;
	char *pos, *end, *strict;
	char field[30];

	/* Determine whether or not strict checking was requested */
	os_snprintf(field, sizeof(field), "%s", _field);
	field[sizeof(field) - 1] = '\0';
	strict = os_strchr(field, ' ');
	if (strict != NULL) {
		*strict++ = '\0';
		if (os_strcmp(strict, "strict") != 0)
			return -1;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s",
		field, strict ? strict : "");

	if (os_strcmp(field, "eap") == 0) {
		return eap_get_names(buf, buflen);
	}

	res = wpa_drv_get_capa(wpa_s, &capa);

	pos = buf;
	end = pos + buflen;

	if (os_strcmp(field, "pairwise") == 0) {
		if (res < 0) {
			if (strict)
				return 0;
			ret = os_snprintf(buf, buflen, "CCMP TKIP NONE");
			if (ret < 0 || (size_t) ret >= buflen)
				return -1;
			return ret;
		}

		if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
			ret = os_snprintf(pos, end - pos, "%sCCMP",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
			ret = os_snprintf(pos, end - pos, "%sTKIP",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
			ret = os_snprintf(pos, end - pos, "%sNONE",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		return pos - buf;
	}

	if (os_strcmp(field, "group") == 0) {
		if (res < 0) {
			if (strict)
				return 0;
			ret = os_snprintf(buf, buflen,
					  "CCMP TKIP WEP104 WEP40");
			if (ret < 0 || (size_t) ret >= buflen)
				return -1;
			return ret;
		}

		if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
			ret = os_snprintf(pos, end - pos, "%sCCMP",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
			ret = os_snprintf(pos, end - pos, "%sTKIP",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
			ret = os_snprintf(pos, end - pos, "%sWEP104",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
			ret = os_snprintf(pos, end - pos, "%sWEP40",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		return pos - buf;
	}

	if (os_strcmp(field, "key_mgmt") == 0) {
		if (res < 0) {
			if (strict)
				return 0;
			ret = os_snprintf(buf, buflen, "WPA-PSK WPA-EAP "
					  "IEEE8021X WPA-NONE NONE");
			if (ret < 0 || (size_t) ret >= buflen)
				return -1;
			return ret;
		}

		ret = os_snprintf(pos, end - pos, "NONE IEEE8021X");
		if (ret < 0 || ret >= end - pos)
			return pos - buf;
		pos += ret;

		if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
				     WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
			ret = os_snprintf(pos, end - pos, " WPA-EAP");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
		}

		if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
				     WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
			ret = os_snprintf(pos, end - pos, " WPA-PSK");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
		}

		if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
			ret = os_snprintf(pos, end - pos, " WPA-NONE");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
		}

		return pos - buf;
	}

	if (os_strcmp(field, "proto") == 0) {
		if (res < 0) {
			if (strict)
				return 0;
			ret = os_snprintf(buf, buflen, "RSN WPA");
			if (ret < 0 || (size_t) ret >= buflen)
				return -1;
			return ret;
		}

		if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
				     WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
			ret = os_snprintf(pos, end - pos, "%sRSN",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
				     WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
			ret = os_snprintf(pos, end - pos, "%sWPA",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		return pos - buf;
	}

	if (os_strcmp(field, "auth_alg") == 0) {
		if (res < 0) {
			if (strict)
				return 0;
			ret = os_snprintf(buf, buflen, "OPEN SHARED LEAP");
			if (ret < 0 || (size_t) ret >= buflen)
				return -1;
			return ret;
		}

		if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
			ret = os_snprintf(pos, end - pos, "%sOPEN",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
			ret = os_snprintf(pos, end - pos, "%sSHARED",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
			ret = os_snprintf(pos, end - pos, "%sLEAP",
					  first ? "" : " ");
			if (ret < 0 || ret >= end - pos)
				return pos - buf;
			pos += ret;
			first = 0;
		}

		return pos - buf;
	}

	wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
		   field);

	return -1;
}