1cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project/* 2cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Copyright 2008, The Android Open Source Project 3cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 4cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * you may not use this file except in compliance with the License. 6cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * You may obtain a copy of the License at 7cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 8cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 10cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * See the License for the specific language governing permissions and 14cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * limitations under the License. 15cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 16cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 17cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <stdlib.h> 18cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <fcntl.h> 19cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <errno.h> 20cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <string.h> 21eea19f1d855b9434313fbb9447a23caf8123aa58Dmitry Shmidt#include <dirent.h> 2245bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt#include <sys/socket.h> 232263e479a544e7f4d547abcb747fe5896afb9de8Mark Salyzyn#include <sys/stat.h> 24cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root#include <unistd.h> 2545bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt#include <poll.h> 26cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 27cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "hardware_legacy/wifi.h" 2841d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#ifdef LIBWPA_CLIENT_EXISTS 29cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "libwpa_client/wpa_ctrl.h" 3041d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#endif 31cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 32cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#define LOG_TAG "WifiHW" 33cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/log.h" 34cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/memory.h" 35cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/misc.h" 36cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/properties.h" 37cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "private/android_filesystem_config.h" 387a070c610002a81583c9a42f3b629507b61fa6d8Elliott Hughes 39cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ 40cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <sys/_system_properties.h> 41cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 42445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern int do_dhcp(); 43445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern int ifc_init(); 44445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern void ifc_close(); 45445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern char *dhcp_lasterror(); 46445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern void get_dhcp_info(); 47cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectextern int init_module(void *, unsigned long, const char *); 48cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectextern int delete_module(const char *, unsigned int); 490f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndevoid wifi_close_sockets(); 50cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 5141d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#ifndef LIBWPA_CLIENT_EXISTS 5241d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#define WPA_EVENT_TERMINATING "CTRL-EVENT-TERMINATING " 5341d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstruct wpa_ctrl {}; 5441d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtvoid wpa_ctrl_cleanup(void) {} 5541d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstruct wpa_ctrl *wpa_ctrl_open(const char *ctrl_path) { return NULL; } 5641d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtvoid wpa_ctrl_close(struct wpa_ctrl *ctrl) {} 5741d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len, 5841d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt char *reply, size_t *reply_len, void (*msg_cb)(char *msg, size_t len)) 5941d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt { return 0; } 6041d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_attach(struct wpa_ctrl *ctrl) { return 0; } 6141d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_detach(struct wpa_ctrl *ctrl) { return 0; } 6241d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_recv(struct wpa_ctrl *ctrl, char *reply, size_t *reply_len) 6341d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt { return 0; } 6441d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_get_fd(struct wpa_ctrl *ctrl) { return 0; } 6541d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#endif 6641d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt 6741d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstatic struct wpa_ctrl *ctrl_conn; 6841d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstatic struct wpa_ctrl *monitor_conn; 6941d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt 7041d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt/* socket pair used to exit from a blocking read */ 7141d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstatic int exit_sockets[2]; 7241d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt 73da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriffstatic char primary_iface[PROPERTY_VALUE_MAX]; 74cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project// TODO: use new ANDROID_SOCKET mechanism, once support for multiple 75cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project// sockets is in 76cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 77243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#ifndef WIFI_DRIVER_MODULE_ARG 78243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#define WIFI_DRIVER_MODULE_ARG "" 79243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#endif 80243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#ifndef WIFI_FIRMWARE_LOADER 81243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#define WIFI_FIRMWARE_LOADER "" 82243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#endif 83243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#define WIFI_TEST_INTERFACE "sta" 84243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt 854b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_STA 864b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#define WIFI_DRIVER_FW_PATH_STA NULL 874b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#endif 884b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_AP 894b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#define WIFI_DRIVER_FW_PATH_AP NULL 904b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#endif 914b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_P2P 924b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#define WIFI_DRIVER_FW_PATH_P2P NULL 934b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#endif 944b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt 9529a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_PARAM 9629a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt#define WIFI_DRIVER_FW_PATH_PARAM "/sys/module/wlan/parameters/fwpath" 9729a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt#endif 9829a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt 99ed8487244b1c9f72fb5d22c7a18918ac34063ceeDmitry Shmidt#define WIFI_DRIVER_LOADER_DELAY 1000000 100ed8487244b1c9f72fb5d22c7a18918ac34063ceeDmitry Shmidt 101cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char IFACE_DIR[] = "/data/system/wpa_supplicant"; 102d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 103243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_NAME[] = WIFI_DRIVER_MODULE_NAME; 104243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_TAG[] = WIFI_DRIVER_MODULE_NAME " "; 105243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_PATH[] = WIFI_DRIVER_MODULE_PATH; 106243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_ARG[] = WIFI_DRIVER_MODULE_ARG; 107d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 108243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char FIRMWARE_LOADER[] = WIFI_FIRMWARE_LOADER; 109cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char DRIVER_PROP_NAME[] = "wlan.driver.status"; 110cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPPLICANT_NAME[] = "wpa_supplicant"; 111cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPP_PROP_NAME[] = "init.svc.wpa_supplicant"; 112096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic const char P2P_SUPPLICANT_NAME[] = "p2p_supplicant"; 113096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic const char P2P_PROP_NAME[] = "init.svc.p2p_supplicant"; 114cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPP_CONFIG_TEMPLATE[]= "/system/etc/wifi/wpa_supplicant.conf"; 115cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPP_CONFIG_FILE[] = "/data/misc/wifi/wpa_supplicant.conf"; 11667ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriffstatic const char P2P_CONFIG_FILE[] = "/data/misc/wifi/p2p_supplicant.conf"; 117096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic const char CONTROL_IFACE_PATH[] = "/data/misc/wifi/sockets"; 118cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char MODULE_FILE[] = "/proc/modules"; 119cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 120ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidtstatic const char IFNAME[] = "IFNAME="; 121ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt#define IFNAMELEN (sizeof(IFNAME) - 1) 122ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidtstatic const char WPA_EVENT_IGNORE[] = "CTRL-EVENT-IGNORE "; 123ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt 1243ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidtstatic const char SUPP_ENTROPY_FILE[] = WIFI_ENTROPY_FILE; 12507a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidtstatic unsigned char dummy_key[21] = { 0x02, 0x11, 0xbe, 0x33, 0x43, 0x35, 12607a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidt 0x68, 0x47, 0x84, 0x99, 0xa9, 0x2b, 12707a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidt 0x1c, 0xd3, 0xee, 0xff, 0xf1, 0xe2, 12807a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidt 0xf3, 0xf4, 0xf5 }; 1293ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 130096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff/* Is either SUPPLICANT_NAME or P2P_SUPPLICANT_NAME */ 131096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic char supplicant_name[PROPERTY_VALUE_MAX]; 132096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff/* Is either SUPP_PROP_NAME or P2P_PROP_NAME */ 133096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic char supplicant_prop_name[PROPERTY_KEY_MAX]; 134096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 135243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic int insmod(const char *filename, const char *args) 136cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 137cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project void *module; 138cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project unsigned int size; 139cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int ret; 140cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 141cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project module = load_file(filename, &size); 142cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (!module) 143cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 144cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 145243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt ret = init_module(module, size, args); 146cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 147cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project free(module); 148cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 149cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return ret; 150cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 151cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 152cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic int rmmod(const char *modname) 153cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 154cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int ret = -1; 155cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int maxtry = 10; 156cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 157cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (maxtry-- > 0) { 158cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project ret = delete_module(modname, O_NONBLOCK | O_EXCL); 159cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (ret < 0 && errno == EAGAIN) 160cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(500000); 161cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project else 162cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project break; 163cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 164cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 165cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (ret != 0) 166b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("Unable to unload driver module \"%s\": %s\n", 167cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project modname, strerror(errno)); 168cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return ret; 169cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 170cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 171445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruint do_dhcp_request(int *ipaddr, int *gateway, int *mask, 172445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru int *dns1, int *dns2, int *server, int *lease) { 173445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru /* For test driver, always report success */ 174da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff if (strcmp(primary_iface, WIFI_TEST_INTERFACE) == 0) 175445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return 0; 176445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 177445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru if (ifc_init() < 0) 178445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return -1; 179445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 180da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff if (do_dhcp(primary_iface) < 0) { 181445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru ifc_close(); 182445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return -1; 183445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru } 184445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru ifc_close(); 185445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru get_dhcp_info(ipaddr, gateway, mask, dns1, dns2, server, lease); 186445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return 0; 187445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru} 188445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 189445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruconst char *get_dhcp_error_string() { 190445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return dhcp_lasterror(); 191445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru} 192445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 193da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang#ifdef WIFI_DRIVER_STATE_CTRL_PARAM 194da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Changint wifi_change_driver_state(const char *state) 195da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang{ 196da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang int len; 197da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang int fd; 198da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang int ret = 0; 199da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang 200da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang if (!state) 201da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang return -1; 202da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang fd = TEMP_FAILURE_RETRY(open(WIFI_DRIVER_STATE_CTRL_PARAM, O_WRONLY)); 203da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang if (fd < 0) { 204da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang ALOGE("Failed to open driver state control param (%s)", strerror(errno)); 205da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang return -1; 206da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang } 207da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang len = strlen(state) + 1; 208da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang if (TEMP_FAILURE_RETRY(write(fd, state, len)) != len) { 209da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang ALOGE("Failed to write driver state control param (%s)", strerror(errno)); 210da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang ret = -1; 211da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang } 212da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang close(fd); 213da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang return ret; 214da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang} 215da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang#endif 216da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang 2172bb990bfd2580f9be93a413e3a5325057977a828Irfan Sheriffint is_wifi_driver_loaded() { 218cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char driver_status[PROPERTY_VALUE_MAX]; 219d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 220cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project FILE *proc; 221cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char line[sizeof(DRIVER_MODULE_TAG)+10]; 222d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 223cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 224cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (!property_get(DRIVER_PROP_NAME, driver_status, NULL) 225cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project || strcmp(driver_status, "ok") != 0) { 226cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; /* driver not loaded */ 227cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 228d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 229cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* 230cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * If the property says the driver is loaded, check to 231cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * make sure that the property setting isn't just left 232cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * over from a previous manual shutdown or a runtime 233cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * crash. 234cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 235cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if ((proc = fopen(MODULE_FILE, "r")) == NULL) { 23664cca04dcbf4e21a51131224b9d0f0c596f876d4Steve Block ALOGW("Could not open %s: %s", MODULE_FILE, strerror(errno)); 237243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt property_set(DRIVER_PROP_NAME, "unloaded"); 238cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 239cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 240cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while ((fgets(line, sizeof(line), proc)) != NULL) { 241cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strncmp(line, DRIVER_MODULE_TAG, strlen(DRIVER_MODULE_TAG)) == 0) { 242cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project fclose(proc); 243cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 1; 244cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 245cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 246cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project fclose(proc); 247cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project property_set(DRIVER_PROP_NAME, "unloaded"); 248cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 249d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#else 250d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt return 1; 251d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 252cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 253cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 254cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectint wifi_load_driver() 255cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 256d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 257cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char driver_status[PROPERTY_VALUE_MAX]; 258cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int count = 100; /* wait at most 20 seconds for completion */ 259cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 2602bb990bfd2580f9be93a413e3a5325057977a828Irfan Sheriff if (is_wifi_driver_loaded()) { 261cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 262cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 263cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 264243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt if (insmod(DRIVER_MODULE_PATH, DRIVER_MODULE_ARG) < 0) 265cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 266243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt 267243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt if (strcmp(FIRMWARE_LOADER,"") == 0) { 2688fb5f74df7b25051e007a67eea22b984ef7dc76aDmitry Shmidt /* usleep(WIFI_DRIVER_LOADER_DELAY); */ 269243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt property_set(DRIVER_PROP_NAME, "ok"); 270243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt } 271243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt else { 272243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt property_set("ctl.start", FIRMWARE_LOADER); 273243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt } 274cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project sched_yield(); 275cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (count-- > 0) { 276cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (property_get(DRIVER_PROP_NAME, driver_status, NULL)) { 277cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strcmp(driver_status, "ok") == 0) 278cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 27985bff332cc3b8ba33e66246052647ca1a546dc42Ajay Dudani else if (strcmp(driver_status, "failed") == 0) { 2807b43699180e593b19092eb2a091c4bca105aca77Dmitry Shmidt wifi_unload_driver(); 281cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 2827b43699180e593b19092eb2a091c4bca105aca77Dmitry Shmidt } 283cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 284cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(200000); 285cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 286cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project property_set(DRIVER_PROP_NAME, "timeout"); 2877b43699180e593b19092eb2a091c4bca105aca77Dmitry Shmidt wifi_unload_driver(); 288cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 289d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#else 290da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang#ifdef WIFI_DRIVER_STATE_CTRL_PARAM 291da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang if (is_wifi_driver_loaded()) { 292da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang return 0; 293da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang } 294da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang 295da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang if (wifi_change_driver_state(WIFI_DRIVER_STATE_ON) < 0) 296da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang return -1; 297da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang#endif 298d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt property_set(DRIVER_PROP_NAME, "ok"); 299d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt return 0; 300d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 301cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 302cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 303cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectint wifi_unload_driver() 304cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 3054c1a1fedd632791580c4b483c31abc4e583eae16Dmitry Shmidt usleep(200000); /* allow to finish interface down */ 306953c1140659ae935e4718d4fd48662db178814f6Dmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 307cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (rmmod(DRIVER_MODULE_NAME) == 0) { 308953c1140659ae935e4718d4fd48662db178814f6Dmitry Shmidt int count = 20; /* wait at most 10 seconds for completion */ 3090e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt while (count-- > 0) { 3100e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt if (!is_wifi_driver_loaded()) 3110e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt break; 3120e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt usleep(500000); 3130e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt } 314953c1140659ae935e4718d4fd48662db178814f6Dmitry Shmidt usleep(500000); /* allow card removal */ 3150e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt if (count) { 3160e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt return 0; 3170e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt } 3180e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt return -1; 319cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } else 320cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 321d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#else 322da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang#ifdef WIFI_DRIVER_STATE_CTRL_PARAM 323da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang if (is_wifi_driver_loaded()) { 324da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang if (wifi_change_driver_state(WIFI_DRIVER_STATE_OFF) < 0) 325da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang return -1; 326da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang } 327da1c7fa2901ad0d6158412d35d3c2b67f4c54518Maddest Chang#endif 328d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt property_set(DRIVER_PROP_NAME, "unloaded"); 329d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt return 0; 330d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 331cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 332cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 3333ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidtint ensure_entropy_file_exists() 3343ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt{ 3353ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt int ret; 3363ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt int destfd; 3373ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 3383ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt ret = access(SUPP_ENTROPY_FILE, R_OK|W_OK); 3393ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if ((ret == 0) || (errno == EACCES)) { 3403ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if ((ret != 0) && 3413ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt (chmod(SUPP_ENTROPY_FILE, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) != 0)) { 3425efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot set RW to \"%s\": %s", SUPP_ENTROPY_FILE, strerror(errno)); 3433ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3443ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3453ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return 0; 3463ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 347cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root destfd = TEMP_FAILURE_RETRY(open(SUPP_ENTROPY_FILE, O_CREAT|O_RDWR, 0660)); 3483ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (destfd < 0) { 3495efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot create \"%s\": %s", SUPP_ENTROPY_FILE, strerror(errno)); 3503ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3513ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3523ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 353cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root if (TEMP_FAILURE_RETRY(write(destfd, dummy_key, sizeof(dummy_key))) != sizeof(dummy_key)) { 3545efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error writing \"%s\": %s", SUPP_ENTROPY_FILE, strerror(errno)); 3553ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt close(destfd); 3563ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3573ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3583ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt close(destfd); 3593ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 3603ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt /* chmod is needed because open() didn't set permisions properly */ 3613ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (chmod(SUPP_ENTROPY_FILE, 0660) < 0) { 3625efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing permissions of %s to 0660: %s", 3633ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt SUPP_ENTROPY_FILE, strerror(errno)); 3643ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt unlink(SUPP_ENTROPY_FILE); 3653ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3663ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3673ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 3683ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (chown(SUPP_ENTROPY_FILE, AID_SYSTEM, AID_WIFI) < 0) { 3695efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing group ownership of %s to %d: %s", 3703ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt SUPP_ENTROPY_FILE, AID_WIFI, strerror(errno)); 3713ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt unlink(SUPP_ENTROPY_FILE); 3723ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3733ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3743ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return 0; 3753ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt} 3763ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 37767ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriffint ensure_config_file_exists(const char *config_file) 37867ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff{ 37967ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff char buf[2048]; 380cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int srcfd, destfd; 3818a5b197b3d5878e3f1cf49c9c38c090456107e87Irfan Sheriff struct stat sb; 382cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int nread; 38389ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt int ret; 384cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 38567ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff ret = access(config_file, R_OK|W_OK); 38689ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt if ((ret == 0) || (errno == EACCES)) { 38789ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt if ((ret != 0) && 38867ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff (chmod(config_file, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) != 0)) { 3895efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot set RW to \"%s\": %s", config_file, strerror(errno)); 39089ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt return -1; 39189ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt } 392c6bb3b5e1e06aa7798342f4ca8d4cc6364f5ec9aDmitry Shmidt return 0; 393cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } else if (errno != ENOENT) { 3945efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot access \"%s\": %s", config_file, strerror(errno)); 395cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 396cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 397cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 398cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root srcfd = TEMP_FAILURE_RETRY(open(SUPP_CONFIG_TEMPLATE, O_RDONLY)); 399cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (srcfd < 0) { 4005efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot open \"%s\": %s", SUPP_CONFIG_TEMPLATE, strerror(errno)); 401cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 402cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 403cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 404cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root destfd = TEMP_FAILURE_RETRY(open(config_file, O_CREAT|O_RDWR, 0660)); 405cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (destfd < 0) { 406cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(srcfd); 4075efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot create \"%s\": %s", config_file, strerror(errno)); 408cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 409cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 410cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 411cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root while ((nread = TEMP_FAILURE_RETRY(read(srcfd, buf, sizeof(buf)))) != 0) { 412cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (nread < 0) { 4135efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error reading \"%s\": %s", SUPP_CONFIG_TEMPLATE, strerror(errno)); 414cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(srcfd); 415cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(destfd); 41667ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff unlink(config_file); 417cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 418cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 419cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root TEMP_FAILURE_RETRY(write(destfd, buf, nread)); 420cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 421cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 422cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(destfd); 423cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(srcfd); 424cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 42524bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt /* chmod is needed because open() didn't set permisions properly */ 42667ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff if (chmod(config_file, 0660) < 0) { 4275efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing permissions of %s to 0660: %s", 42867ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff config_file, strerror(errno)); 42967ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff unlink(config_file); 43024bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt return -1; 43124bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt } 43224bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt 43367ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff if (chown(config_file, AID_SYSTEM, AID_WIFI) < 0) { 4345efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing group ownership of %s to %d: %s", 43567ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff config_file, AID_WIFI, strerror(errno)); 43667ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff unlink(config_file); 437cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 438cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 439c6bb3b5e1e06aa7798342f4ca8d4cc6364f5ec9aDmitry Shmidt return 0; 440cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 441cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 442096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffint wifi_start_supplicant(int p2p_supported) 443cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 444cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 445cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int count = 200; /* wait at most 20 seconds for completion */ 446cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project const prop_info *pi; 447da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff unsigned serial = 0, i; 448cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 449096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (p2p_supported) { 450096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_name, P2P_SUPPLICANT_NAME); 451096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_prop_name, P2P_PROP_NAME); 452096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 453096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff /* Ensure p2p config file is created */ 454096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (ensure_config_file_exists(P2P_CONFIG_FILE) < 0) { 455096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff ALOGE("Failed to create a p2p config file"); 456096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff return -1; 457096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } 458096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 459096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } else { 460096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_name, SUPPLICANT_NAME); 461096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_prop_name, SUPP_PROP_NAME); 462096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } 463096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 464cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Check whether already running */ 465eed817e46ee7351f21673118eda9a5960a483120Jonathan DE CESCO if (property_get(supplicant_prop_name, supp_status, NULL) 466cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project && strcmp(supp_status, "running") == 0) { 467cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 468cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 469cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 470cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Before starting the daemon, make sure its config file exists */ 471096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (ensure_config_file_exists(SUPP_CONFIG_FILE) < 0) { 4725efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Wi-Fi will not be enabled"); 473cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 474cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 475cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 4763ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (ensure_entropy_file_exists() < 0) { 4775efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Wi-Fi entropy file was not created"); 4783ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 4793ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 480cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Clear out any stale socket files that might be left over. */ 481de9abffc3815449cbd8d756937030cb0353fb9f2Dmitry Shmidt wpa_ctrl_cleanup(); 482cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 483da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff /* Reset sockets used for exiting from hung state */ 4840f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde exit_sockets[0] = exit_sockets[1] = -1; 485da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 486cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* 487cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Get a reference to the status property, so we can distinguish 488cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * the case where it goes stopped => running => stopped (i.e., 489cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * it start up, but fails right away) from the case in which 490cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * it starts in the stopped state and never manages to start 491cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * running at all. 492cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 493096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff pi = __system_property_find(supplicant_prop_name); 494cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (pi != NULL) { 49514c02f245e56687b765487d25a034d71196d33b6Colin Cross serial = __system_property_serial(pi); 496cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 497da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff property_get("wifi.interface", primary_iface, WIFI_TEST_INTERFACE); 498096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 499096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff property_set("ctl.start", supplicant_name); 500cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project sched_yield(); 501cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 502cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (count-- > 0) { 503cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (pi == NULL) { 504096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff pi = __system_property_find(supplicant_prop_name); 505cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 506cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (pi != NULL) { 5074431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo /* 5084431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo * property serial updated means that init process is scheduled 5094431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo * after we sched_yield, further property status checking is based on this */ 5104431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo if (__system_property_serial(pi) != serial) { 5114431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo __system_property_read(pi, NULL, supp_status); 5124431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo if (strcmp(supp_status, "running") == 0) { 5134431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo return 0; 5144431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo } else if (strcmp(supp_status, "stopped") == 0) { 5154431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo return -1; 5164431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo } 517cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 518cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 519cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(100000); 520cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 521cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 522cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 523cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 524745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriffint wifi_stop_supplicant(int p2p_supported) 525cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 526cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 527cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int count = 50; /* wait at most 5 seconds for completion */ 528cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 529745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff if (p2p_supported) { 530745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_name, P2P_SUPPLICANT_NAME); 531745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_prop_name, P2P_PROP_NAME); 532745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff } else { 533745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_name, SUPPLICANT_NAME); 534745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_prop_name, SUPP_PROP_NAME); 535745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff } 536745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff 537cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Check whether supplicant already stopped */ 538096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (property_get(supplicant_prop_name, supp_status, NULL) 539cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project && strcmp(supp_status, "stopped") == 0) { 540cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 541cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 542cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 543096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff property_set("ctl.stop", supplicant_name); 544cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project sched_yield(); 545cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 546cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (count-- > 0) { 547096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (property_get(supplicant_prop_name, supp_status, NULL)) { 548cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strcmp(supp_status, "stopped") == 0) 549cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 550cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 551cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(100000); 552cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 553745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff ALOGE("Failed to stop supplicant"); 554cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 555cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 556cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 5570f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_connect_on_socket_path(const char *path) 558cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 559cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 560cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 561cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Make sure supplicant is running */ 562096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (!property_get(supplicant_prop_name, supp_status, NULL) 563cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project || strcmp(supp_status, "running") != 0) { 5645efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Supplicant not running, cannot connect"); 565cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 566cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 567cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 5680f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = wpa_ctrl_open(path); 5690f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (ctrl_conn == NULL) { 5705efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Unable to open connection to supplicant on \"%s\": %s", 571da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff path, strerror(errno)); 572cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 573cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 5740f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde monitor_conn = wpa_ctrl_open(path); 5750f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (monitor_conn == NULL) { 5760f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 5770f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = NULL; 578cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 579cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 5800f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (wpa_ctrl_attach(monitor_conn) != 0) { 5810f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(monitor_conn); 5820f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 5830f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = monitor_conn = NULL; 584cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 585cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 586025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 5870f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (socketpair(AF_UNIX, SOCK_STREAM, 0, exit_sockets) == -1) { 5880f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(monitor_conn); 5890f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 5900f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = monitor_conn = NULL; 591025321a09dbe7820870125acf771e1da02684605Irfan Sheriff return -1; 592025321a09dbe7820870125acf771e1da02684605Irfan Sheriff } 593025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 594cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 595cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 596cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 597da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff/* Establishes the control and monitor socket connections on the interface */ 5980f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_connect_to_supplicant() 599da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff{ 600ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt static char path[PATH_MAX]; 601da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 6020f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (access(IFACE_DIR, F_OK) == 0) { 6030f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde snprintf(path, sizeof(path), "%s/%s", IFACE_DIR, primary_iface); 604da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff } else { 6050f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde snprintf(path, sizeof(path), "@android:wpa_%s", primary_iface); 606da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff } 6070f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wifi_connect_on_socket_path(path); 608da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff} 609da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 6100f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_send_command(const char *cmd, char *reply, size_t *reply_len) 611cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 612cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int ret; 6130f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (ctrl_conn == NULL) { 6146a70518b93928d1c91457ff805e375c82d76b0e5Steve Block ALOGV("Not connected to wpa_supplicant - \"%s\" command dropped.\n", cmd); 615cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 616cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 6170f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ret = wpa_ctrl_request(ctrl_conn, cmd, strlen(cmd), reply, reply_len, NULL); 618cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (ret == -2) { 619b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("'%s' command timed out.\n", cmd); 620025321a09dbe7820870125acf771e1da02684605Irfan Sheriff /* unblocks the monitor receive socket for termination */ 6210f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde TEMP_FAILURE_RETRY(write(exit_sockets[0], "T", 1)); 622cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -2; 623cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } else if (ret < 0 || strncmp(reply, "FAIL", 4) == 0) { 624cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 625cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 626cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strncmp(cmd, "PING", 4) == 0) { 627cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project reply[*reply_len] = '\0'; 628cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 629cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 630cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 631cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 632ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Maheshint wifi_supplicant_connection_active() 633ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh{ 634ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 635ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 636ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (property_get(supplicant_prop_name, supp_status, NULL)) { 637ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (strcmp(supp_status, "stopped") == 0) 638ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return -1; 639ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } 640ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 641ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return 0; 642ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh} 643ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 6440f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_ctrl_recv(char *reply, size_t *reply_len) 645025321a09dbe7820870125acf771e1da02684605Irfan Sheriff{ 646025321a09dbe7820870125acf771e1da02684605Irfan Sheriff int res; 6470f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde int ctrlfd = wpa_ctrl_get_fd(monitor_conn); 64845bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt struct pollfd rfds[2]; 64945bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt 65045bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt memset(rfds, 0, 2 * sizeof(struct pollfd)); 65145bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt rfds[0].fd = ctrlfd; 65245bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt rfds[0].events |= POLLIN; 6530f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde rfds[1].fd = exit_sockets[1]; 65445bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt rfds[1].events |= POLLIN; 655ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh do { 656ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh res = TEMP_FAILURE_RETRY(poll(rfds, 2, 30000)); 657ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (res < 0) { 658ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh ALOGE("Error poll = %d", res); 659ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return res; 660ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } else if (res == 0) { 661ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh /* timed out, check if supplicant is active 662ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh * or not .. 663ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh */ 664ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh res = wifi_supplicant_connection_active(); 665ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (res < 0) 666ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return -2; 667ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } 668ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } while (res == 0); 669ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 67045bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt if (rfds[0].revents & POLLIN) { 6710f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wpa_ctrl_recv(monitor_conn, reply, reply_len); 672025321a09dbe7820870125acf771e1da02684605Irfan Sheriff } 6730f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde 6740f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde /* it is not rfds[0], then it must be rfts[1] (i.e. the exit socket) 6750f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde * or we timed out. In either case, this call has failed .. 6760f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde */ 677897f6dd64224d22c22c8f7a497331bf5bc335e4cIrfan Sheriff return -2; 678025321a09dbe7820870125acf771e1da02684605Irfan Sheriff} 679025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 6800f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_wait_on_socket(char *buf, size_t buflen) 681cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 682cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project size_t nread = buflen - 1; 683cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int result; 6840f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde char *match, *match2; 6850e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt 6860f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (monitor_conn == NULL) { 6870ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - connection closed", 6880ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 6892631f993753d726c8c6a85ab66a83db79e54f0bbIrfan Sheriff } 690cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 6910f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde result = wifi_ctrl_recv(buf, &nread); 692096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 693096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff /* Terminate reception on exit socket */ 694096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (result == -2) { 6950ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - connection closed", 6960ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 697096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } 698096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 699cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (result < 0) { 700b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("wifi_ctrl_recv failed: %s\n", strerror(errno)); 7010ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - recv error", 7020ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 703cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 704cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project buf[nread] = '\0'; 705cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Check for EOF on the socket */ 706cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (result == 0 && nread == 0) { 707cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Fabricate an event to pass up */ 708b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("Received EOF on supplicant socket\n"); 7090ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - signal 0 received", 7100ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 711cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 712cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* 713cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Events strings are in the format 714cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 715ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt * IFNAME=iface <N>CTRL-EVENT-XXX 716ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt * or 717cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * <N>CTRL-EVENT-XXX 718cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 719cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * where N is the message level in numerical form (0=VERBOSE, 1=DEBUG, 720cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * etc.) and XXX is the event name. The level information is not useful 721cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * to us, so strip it off. 722cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 7230f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde 724ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt if (strncmp(buf, IFNAME, IFNAMELEN) == 0) { 725ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt match = strchr(buf, ' '); 726ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt if (match != NULL) { 7270f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (match[1] == '<') { 7280f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde match2 = strchr(match + 2, '>'); 7290f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (match2 != NULL) { 7300f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde nread -= (match2 - match); 7310f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde memmove(match + 1, match2 + 1, nread - (match - buf) + 1); 7320f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde } 733ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt } 734ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt } else { 735ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt return snprintf(buf, buflen, "%s", WPA_EVENT_IGNORE); 736ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt } 7370f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde } else if (buf[0] == '<') { 738ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt match = strchr(buf, '>'); 739cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (match != NULL) { 7400f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde nread -= (match + 1 - buf); 7410f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde memmove(buf, match + 1, nread + 1); 7420f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ALOGV("supplicant generated event without interface - %s\n", buf); 743cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 7440f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde } else { 7450f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde /* let the event go as is! */ 7460f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ALOGW("supplicant generated event without interface and without message level - %s\n", buf); 747cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 748096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 749cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return nread; 750cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 751cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 7520f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_wait_for_event(char *buf, size_t buflen) 753cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 7540f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wifi_wait_on_socket(buf, buflen); 755da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff} 7565a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff 7570f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndevoid wifi_close_sockets() 758da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff{ 7590f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (ctrl_conn != NULL) { 7600f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 7610f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = NULL; 762cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 763da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 7640f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (monitor_conn != NULL) { 7650f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(monitor_conn); 7660f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde monitor_conn = NULL; 767da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff } 768da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 7690f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (exit_sockets[0] >= 0) { 7700f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde close(exit_sockets[0]); 7710f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde exit_sockets[0] = -1; 772cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 7735a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff 7740f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (exit_sockets[1] >= 0) { 7750f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde close(exit_sockets[1]); 7760f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde exit_sockets[1] = -1; 777025321a09dbe7820870125acf771e1da02684605Irfan Sheriff } 778da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff} 779da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 7800f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndevoid wifi_close_supplicant_connection() 781da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff{ 782da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 783da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff int count = 50; /* wait at most 5 seconds to ensure init has stopped stupplicant */ 784025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 7850f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wifi_close_sockets(); 786025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 7875a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff while (count-- > 0) { 788096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (property_get(supplicant_prop_name, supp_status, NULL)) { 7895a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff if (strcmp(supp_status, "stopped") == 0) 7905a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff return; 7915a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff } 7925a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff usleep(100000); 7935a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff } 794cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 795cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 7960f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_command(const char *command, char *reply, size_t *reply_len) 797cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 7980f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wifi_send_command(command, reply, reply_len); 799cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 8004b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt 8014b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidtconst char *wifi_get_fw_path(int fw_type) 8024b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt{ 8034b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt switch (fw_type) { 8044b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt case WIFI_GET_FW_PATH_STA: 8054b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return WIFI_DRIVER_FW_PATH_STA; 8064b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt case WIFI_GET_FW_PATH_AP: 8074b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return WIFI_DRIVER_FW_PATH_AP; 8084b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt case WIFI_GET_FW_PATH_P2P: 8094b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return WIFI_DRIVER_FW_PATH_P2P; 8104b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt } 8114b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return NULL; 8124b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt} 81329a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt 81429a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidtint wifi_change_fw_path(const char *fwpath) 81529a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt{ 81629a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt int len; 81729a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt int fd; 81829a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt int ret = 0; 81929a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt 82029a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt if (!fwpath) 82129a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt return ret; 822cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root fd = TEMP_FAILURE_RETRY(open(WIFI_DRIVER_FW_PATH_PARAM, O_WRONLY)); 82329a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt if (fd < 0) { 8245efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Failed to open wlan fw path param (%s)", strerror(errno)); 82529a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt return -1; 82629a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt } 82729a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt len = strlen(fwpath) + 1; 828cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root if (TEMP_FAILURE_RETRY(write(fd, fwpath, len)) != len) { 8295efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Failed to write wlan fw path param (%s)", strerror(errno)); 83029a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt ret = -1; 83129a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt } 83229a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt close(fd); 83329a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt return ret; 83429a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt} 835