ctrl_iface.c

WLAN无线网络管理的最新程序

		}

		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;
}


static int wpa_supplicant_ctrl_iface_ap_scan(
	struct wpa_supplicant *wpa_s, char *cmd)
{
	int ap_scan = atoi(cmd);

	if (ap_scan < 0 || ap_scan > 2)
		return -1;
	wpa_s->conf->ap_scan = ap_scan;
	return 0;
}


char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s,
					 char *buf, size_t *resp_len)
{
	char *reply;
	const int reply_size = 2048;
	int ctrl_rsp = 0;
	int reply_len;

	if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0 ||
	    os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
		wpa_hexdump_ascii_key(MSG_DEBUG, "RX ctrl_iface",
				      (const u8 *) buf, os_strlen(buf));
	} else {
		wpa_hexdump_ascii(MSG_DEBUG, "RX ctrl_iface",
				  (const u8 *) buf, os_strlen(buf));
	}

	reply = os_malloc(reply_size);
	if (reply == NULL) {
		*resp_len = 1;
		return NULL;
	}

	os_memcpy(reply, "OK\n", 3);
	reply_len = 3;

	if (os_strcmp(buf, "PING") == 0) {
		os_memcpy(reply, "PONG\n", 5);
		reply_len = 5;
	} else if (os_strcmp(buf, "MIB") == 0) {
		reply_len = wpa_sm_get_mib(wpa_s->wpa, reply, reply_size);
		if (reply_len >= 0) {
			int res;
			res = eapol_sm_get_mib(wpa_s->eapol, reply + reply_len,
					       reply_size - reply_len);
			if (res < 0)
				reply_len = -1;
			else
				reply_len += res;
		}
	} else if (os_strncmp(buf, "STATUS", 6) == 0) {
		reply_len = wpa_supplicant_ctrl_iface_status(
			wpa_s, buf + 6, reply, reply_size);
	} else if (os_strcmp(buf, "PMKSA") == 0) {
		reply_len = pmksa_cache_list(wpa_s->wpa, reply, reply_size);
	} else if (os_strncmp(buf, "SET ", 4) == 0) {
		if (wpa_supplicant_ctrl_iface_set(wpa_s, buf + 4))
			reply_len = -1;
	} else if (os_strcmp(buf, "LOGON") == 0) {
		eapol_sm_notify_logoff(wpa_s->eapol, FALSE);
	} else if (os_strcmp(buf, "LOGOFF") == 0) {
		eapol_sm_notify_logoff(wpa_s->eapol, TRUE);
	} else if (os_strcmp(buf, "REASSOCIATE") == 0) {
		wpa_s->disconnected = 0;
		wpa_s->reassociate = 1;
		wpa_supplicant_req_scan(wpa_s, 0, 0);
	} else if (os_strcmp(buf, "RECONNECT") == 0) {
		if (wpa_s->disconnected) {
			wpa_s->disconnected = 0;
			wpa_s->reassociate = 1;
			wpa_supplicant_req_scan(wpa_s, 0, 0);
		}
	} else if (os_strncmp(buf, "PREAUTH ", 8) == 0) {
		if (wpa_supplicant_ctrl_iface_preauth(wpa_s, buf + 8))
			reply_len = -1;
#ifdef CONFIG_PEERKEY
	} else if (os_strncmp(buf, "STKSTART ", 9) == 0) {
		if (wpa_supplicant_ctrl_iface_stkstart(wpa_s, buf + 9))
			reply_len = -1;
#endif /* CONFIG_PEERKEY */
	} else if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0)
	{
		if (wpa_supplicant_ctrl_iface_ctrl_rsp(
			    wpa_s, buf + os_strlen(WPA_CTRL_RSP)))
			reply_len = -1;
		else
			ctrl_rsp = 1;
	} else if (os_strcmp(buf, "RECONFIGURE") == 0) {
		if (wpa_supplicant_reload_configuration(wpa_s))
			reply_len = -1;
	} else if (os_strcmp(buf, "TERMINATE") == 0) {
		eloop_terminate();
	} else if (os_strncmp(buf, "BSSID ", 6) == 0) {
		if (wpa_supplicant_ctrl_iface_bssid(wpa_s, buf + 6))
			reply_len = -1;
	} else if (os_strcmp(buf, "LIST_NETWORKS") == 0) {
		reply_len = wpa_supplicant_ctrl_iface_list_networks(
			wpa_s, reply, reply_size);
	} else if (os_strcmp(buf, "DISCONNECT") == 0) {
		wpa_s->reassociate = 0;
		wpa_s->disconnected = 1;
		wpa_supplicant_disassociate(wpa_s, REASON_DEAUTH_LEAVING);
	} else if (os_strcmp(buf, "SCAN") == 0) {
		wpa_s->scan_req = 2;
		wpa_supplicant_req_scan(wpa_s, 0, 0);
	} else if (os_strcmp(buf, "SCAN_RESULTS") == 0) {
		reply_len = wpa_supplicant_ctrl_iface_scan_results(
			wpa_s, reply, reply_size);
	} else if (os_strncmp(buf, "SELECT_NETWORK ", 15) == 0) {
		if (wpa_supplicant_ctrl_iface_select_network(wpa_s, buf + 15))
			reply_len = -1;
	} else if (os_strncmp(buf, "ENABLE_NETWORK ", 15) == 0) {
		if (wpa_supplicant_ctrl_iface_enable_network(wpa_s, buf + 15))
			reply_len = -1;
	} else if (os_strncmp(buf, "DISABLE_NETWORK ", 16) == 0) {
		if (wpa_supplicant_ctrl_iface_disable_network(wpa_s, buf + 16))
			reply_len = -1;
	} else if (os_strcmp(buf, "ADD_NETWORK") == 0) {
		reply_len = wpa_supplicant_ctrl_iface_add_network(
			wpa_s, reply, reply_size);
	} else if (os_strncmp(buf, "REMOVE_NETWORK ", 15) == 0) {
		if (wpa_supplicant_ctrl_iface_remove_network(wpa_s, buf + 15))
			reply_len = -1;
	} else if (os_strncmp(buf, "SET_NETWORK ", 12) == 0) {
		if (wpa_supplicant_ctrl_iface_set_network(wpa_s, buf + 12))
			reply_len = -1;
	} else if (os_strncmp(buf, "GET_NETWORK ", 12) == 0) {
		reply_len = wpa_supplicant_ctrl_iface_get_network(
			wpa_s, buf + 12, reply, reply_size);
	} else if (os_strcmp(buf, "SAVE_CONFIG") == 0) {
		if (wpa_supplicant_ctrl_iface_save_config(wpa_s))
			reply_len = -1;
	} else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) {
		reply_len = wpa_supplicant_ctrl_iface_get_capability(
			wpa_s, buf + 15, reply, reply_size);
	} else if (os_strncmp(buf, "AP_SCAN ", 8) == 0) {
		if (wpa_supplicant_ctrl_iface_ap_scan(wpa_s, buf + 8))
			reply_len = -1;
	} else if (os_strcmp(buf, "INTERFACES") == 0) {
		reply_len = wpa_supplicant_global_iface_interfaces(
			wpa_s->global, reply, reply_size);
	} else {
		os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
		reply_len = 16;
	}

	if (reply_len < 0) {
		os_memcpy(reply, "FAIL\n", 5);
		reply_len = 5;
	}

	if (ctrl_rsp)
		eapol_sm_notify_ctrl_response(wpa_s->eapol);

	*resp_len = reply_len;
	return reply;
}


static int wpa_supplicant_global_iface_add(struct wpa_global *global,
					   char *cmd)
{
	struct wpa_interface iface;
	char *pos;

	/*
	 * <ifname>TAB<confname>TAB<driver>TAB<ctrl_interface>TAB<driver_param>
	 * TAB<bridge_ifname>
	 */
	wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_ADD '%s'", cmd);

	os_memset(&iface, 0, sizeof(iface));

	do {
		iface.ifname = pos = cmd;
		pos = os_strchr(pos, '\t');
		if (pos)
			*pos++ = '\0';
		if (iface.ifname[0] == '\0')
			return -1;
		if (pos == NULL)
			break;

		iface.confname = pos;
		pos = os_strchr(pos, '\t');
		if (pos)
			*pos++ = '\0';
		if (iface.confname[0] == '\0')
			iface.confname = NULL;
		if (pos == NULL)
			break;

		iface.driver = pos;
		pos = os_strchr(pos, '\t');
		if (pos)
			*pos++ = '\0';
		if (iface.driver[0] == '\0')
			iface.driver = NULL;
		if (pos == NULL)
			break;

		iface.ctrl_interface = pos;
		pos = os_strchr(pos, '\t');
		if (pos)
			*pos++ = '\0';
		if (iface.ctrl_interface[0] == '\0')
			iface.ctrl_interface = NULL;
		if (pos == NULL)
			break;

		iface.driver_param = pos;
		pos = os_strchr(pos, '\t');
		if (pos)
			*pos++ = '\0';
		if (iface.driver_param[0] == '\0')
			iface.driver_param = NULL;
		if (pos == NULL)
			break;

		iface.bridge_ifname = pos;
		pos = os_strchr(pos, '\t');
		if (pos)
			*pos++ = '\0';
		if (iface.bridge_ifname[0] == '\0')
			iface.bridge_ifname = NULL;
		if (pos == NULL)
			break;
	} while (0);

	if (wpa_supplicant_get_iface(global, iface.ifname))
		return -1;

	return wpa_supplicant_add_iface(global, &iface) ? 0 : -1;
}


static int wpa_supplicant_global_iface_remove(struct wpa_global *global,
					      char *cmd)
{
	struct wpa_supplicant *wpa_s;

	wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_REMOVE '%s'", cmd);

	wpa_s = wpa_supplicant_get_iface(global, cmd);
	if (wpa_s == NULL)
		return -1;
	return wpa_supplicant_remove_iface(global, wpa_s);
}


static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global,
						  char *buf, int len)
{
	int res;
	char *pos, *end;
	struct wpa_supplicant *wpa_s;

	wpa_s = global->ifaces;
	pos = buf;
	end = buf + len;

	while (wpa_s) {
		res = os_snprintf(pos, end - pos, "%s\n", wpa_s->ifname);
		if (res < 0 || res >= end - pos) {
			*pos = '\0';
			break;
		}
		pos += res;
		wpa_s = wpa_s->next;
	}
	return pos - buf;
}


char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global,
						char *buf, size_t *resp_len)
{
	char *reply;
	const int reply_size = 2048;
	int reply_len;

	wpa_hexdump_ascii(MSG_DEBUG, "RX global ctrl_iface",
			  (const u8 *) buf, os_strlen(buf));

	reply = os_malloc(reply_size);
	if (reply == NULL) {
		*resp_len = 1;
		return NULL;
	}

	os_memcpy(reply, "OK\n", 3);
	reply_len = 3;

	if (os_strcmp(buf, "PING") == 0) {
		os_memcpy(reply, "PONG\n", 5);
		reply_len = 5;
	} else if (os_strncmp(buf, "INTERFACE_ADD ", 14) == 0) {
		if (wpa_supplicant_global_iface_add(global, buf + 14))
			reply_len = -1;
	} else if (os_strncmp(buf, "INTERFACE_REMOVE ", 17) == 0) {
		if (wpa_supplicant_global_iface_remove(global, buf + 17))
			reply_len = -1;
	} else if (os_strcmp(buf, "INTERFACES") == 0) {
		reply_len = wpa_supplicant_global_iface_interfaces(
			global, reply, reply_size);
	} else if (os_strcmp(buf, "TERMINATE") == 0) {
		eloop_terminate();
	} else {
		os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
		reply_len = 16;
	}

	if (reply_len < 0) {
		os_memcpy(reply, "FAIL\n", 5);
		reply_len = 5;
	}

	*resp_len = reply_len;
	return reply;
}