本帖最后由 l_xy 于 2020-11-19 16:24 编辑
主要是修改和3518相关的wpa_supplicant.conf hostapd.conf 两个文件，对wifi相关的ssid、passwd等进行配置
【编译生成wifi可执行文件】 请参考以下示例代码编译可执行程序wpa_supplicant：（SDK里面有这些代码，不做修改）
路径 ./applica
tions/sample/camera/communication/wpa_supplicant/src/wpa_sample.c
- #include
- #include
- #include
- #include
- pthread_t g_wpaThread;
- char* g_wpaArg[20] = {0};
- int g_wpaArgc = 0;
- static void* ThreadMain()
- {
- printf("[WpaSample]init wpa_supplicant.n");
- void *handleLibWpa = dlopen("/usr/lib/libwpa.so", RTLD_NOW | RTLD_LOCAL);
- if (handleLibWpa == NULL) {
- printf("[WpaSample]dlopen libwpa failed.n");
- return NULL;
- }
- int (*func)(int, char **) = NULL;
- func = dlsym(handleLibWpa, "wpa_main");
- if (func == NULL) {
- dlclose(handleLibWpa);
- printf("[WpaSample]dlsym wpa_main failed.n");
- return NULL;
- }
- int ret = func(g_wpaArgc, g_wpaArg);
- printf("[WpaSample]run wpa_main failed, ret:%d.n", ret);
- for (int i = 0; i < g_wpaArgc; i++) {
- printf("[WpaSample]arg %d:%s.n", i, g_wpaArg);
- }
- if (dlclose(handleLibWpa) != 0) {
- printf("[WpaSample]dlclose libwpa failed.n");
- return NULL;
- }
- return NULL;
- }
- int main(int argc, char *argv[])
- {
- g_wpaArgc = argc;
- for (int i = 0; i < g_wpaArgc; i++) {
- g_wpaArg = argv;
- }
- int ret = pthread_create(&g_wpaThread, NULL, ThreadMain, NULL);
- if (ret != 0) {
- printf("[WpaSample]create thread failed error:%s.n", strerror(ret));
- return 1;
- }
- pthread_join(g_wpaThread, NULL);
- return 0;
- }
路径 ./applications/sample/camera/communication目录下面的BUILD.gn文件
- import("//build/lite/config/component/lite_component.gni")
- lite_component("sample") {
- features = [
- "wpa_supplicant:wpa_sample",
- ]
- }
路径 ./applications/sample/camera/communication/wpa_supplicant目录下面的BUILD.gn文件
- import("//build/lite/config/component/lite_component.gni")
- sample_sources = [
- "src/wpa_sample.c",
- ]
- config_file = [
- "config/wpa_supplicant.conf"
- ]
- executable("wpa_sample_exe") {
- output_name = "wpa_supplicant"
- sources = sample_sources
- }
- group("wpa_sample") {
- deps = [
- ":wpa_sample_exe",
- ]
- }
- copy("config") {
- sources = config_file
- outputs = [
- "$root_out_dir/etc/wpa_supplicant.conf"
- ]
- }
路径 ./build/lite/product/ipcamera_hi3518ev300.json
【修改station模式的配置】将以下配置写到配置文件wpa_supplicant.conf
- country=GB
- ctrl_interface=udp
- network={
- #要连接的SSID
- ssid="example"
- #如果不需要加密就写key_mgmt=NONE
- #key_mgmt=NONE
- #如果需要加密就写这行密码
- psk="12345678"
- }
【修改ap模式的配置】将以下配置写到配置文件hostapd.conf
- interface=wlan0
- driver=hdf wifi
- ctrl_interface=udp
- ssid=testap
- hw_mode=g
- channel=1
- ignore_broadcast_ssid=0
- #下面是wpa2-psk类型加密的配置
- #如果不需要加密可以删除
- auth_algs=1
- wpa=2
- wpa_passphrase=12345678
- rsn_pairwise=CCMP
【使用方法】
【WIFI设备检测】进入OHOS界面后，输入
，检查wlan0网口是否加载正常，加载成功标识如下：
OHOS # ifconfig
wlan0 ip:0.0.0.0 netmask:0.0.0.0 gateway:0.0.0.0
HWaddr 0a:11:31:aa:7e:1a MTU:1500 Stop Link UP
lo ip:127.0.0.1 netmask:255.0.0.0 gateway:127.0.0.1
ip6: ::1/64
HWaddr 00 MTU:16436 Running Link UP
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