int main(int argc, char* argv[])
{
int hotplug_sock = init_hotplug_sock();
while(1)
{
char buf[UEVENT_BUFFER_SIZE*2] = {0};
//ssize_t recv(int socket, void *buffer, size_t length, int flags);
recv(hotplug_sock, &buf, sizeof(buf), 0); //config snl(sockaddr) -> socket -> setsockopt -> bind -> recv(connection-mode)
printf("%s\n", buf);
}
return 0;
}
int main(int argc, char* argv[])
{
int hotplug_sock = init_hotplug_sock();
while(1)
{
/* Netlink message buffer */
char buf[UEVENT_BUFFER_SIZE * 2] = {0};
recv(hotplug_sock, &buf, sizeof(buf), 0);
printf("%s\n", buf);
/* USB 设备的插拔会出现字符信息，通过比较不同的信息确定特定设备的插拔，在这添加比较代码 */
}
return 0;
}
void UsbHubStudy::go() {
printf("# init mode\n");
printf("请将USB存储设备插拔同一个Hub的不同USB口, 然后退出.\nPS: 不得插拔不同的Hub, 如果你这样做了, 请退出后再试. 总之init模式下, 保证只有需要检测的Hub发生变化.\n\n");
// 读取消息数组
char buf[UEVENT_BUFFER_SIZE * 2] = {0};
// 串口socket
int hotplug_sock = init_hotplug_sock();
while(1)
{
// 清空
memset(buf, 0x0, sizeof(buf));
// 阻塞读取
recv(hotplug_sock, &buf, sizeof(buf), 0);
#ifdef _DEBUG_
printf("debug:recv:%s\n", buf);
#endif
string strBuf = buf;
// 解析出开头是add, remove, 末尾有tty
if(0 == strBuf.find("add@") && strBuf.find("tty/") != std::string::npos)
{
#ifdef _DEBUG_
printf("debug:add:%s\n", strBuf.c_str());
#endif
strBuf = strBuf.substr(4);
work(strBuf);
}
else if(0 == strBuf.find("remove@") && strBuf.find("tty/") != std::string::npos)
{
#ifdef _DEBUG_
printf("debug:remove:%s\n", strBuf.c_str());
#endif
strBuf = strBuf.substr(7);
work(strBuf);
}
}
}
void *hotPlugThread(void *param)
{
int i = 0;
int ret = 0;
char buf[1024] = {0};
char devName[128] = {0};
char devPath[124] = {0};
char mountPath[128] = {0};
char cmd[128] = {0};
int hotplug_sock;
int sum,size;
char *str;
#if 0
unsigned char uuid[16] = {0};
setDiskVolumeName("/dev/sda1", "abcd");
getDiskPartitionInfo("/dev/sda1", uuid, NULL, NULL);
checkFallocateFile("/disk/disk0000", 1024*1024*1024);
#endif
hotplug_sock = init_hotplug_sock();
while(1)
{
sum = 0;
memset(buf, 0, sizeof(buf));
size = recv(hotplug_sock, buf, sizeof(buf), 0);
// fprintf(stderr,"size=%d, buf=[%s], strlen(buf)=%d\n", size, buf, strlen(buf));
while(sum < size)
{
str = buf + sum;
sum += strlen(str);
buf[sum] = '\n';
}
buf[sum] = 0;
// fprintf(stderr,"buf=[%s]\n\n", buf);
if(((strstr(buf, "ACTION=add") != NULL) && (strstr(buf, "DEVTYPE=disk") != NULL))||((strstr(buf, "ACTION=add") != NULL) && (strstr(buf, "DEVTYPE=partition") != NULL)))
{
if((strstr(buf, "NPARTS=0") != NULL) || (strstr(buf, "PARTN=") != NULL))
{
memset(devName, 0, sizeof(devName));
if(getDevName(buf, devName) == 0)
{
fprintf(stderr,"add devName = [%s]\r\n", devName);
if(strstr(buf, "DEVPATH=/devices/platform/hiusb-ehci") != NULL)
{//u盘
for(i = 0; i < 8; i++)
{
sprintf(devPath, "/dev/%s", devName);
sprintf(mountPath, "/usb/usb%04d", i);
ret = checkDiskPartitionIsMount(devPath, mountPath);
if(ret == 0x00)
{
sprintf(cmd, "mount %s %s", devPath, mountPath);
ret=pox_system(cmd);
ret=iCheckSystemReturnValue(ret);
if(0!=ret)
continue;
}
else if(ret == 0x03)
{
break;
}
}
}
}
}
}
if(((strstr(buf,"ACTION=remove")!=NULL) && (strstr(buf, "DEVTYPE=disk") != NULL))||((strstr(buf, "ACTION=remove") != NULL) && (strstr(buf, "DEVTYPE=partition") != NULL)))
{
if((strstr(buf, "NPARTS=0") != NULL) || (strstr(buf, "PARTN=") != NULL))
{
if(getDevName(buf, devName) == 0)
{
printf("remove devName = [%s]\r\n", devName);
if(strstr(buf, "DEVPATH=/devices/platform/hiusb-ehci") != NULL)
{//u
sprintf(devPath, "/dev/%s", devName);
sprintf(cmd, "umount %s", devPath);
int i ;
for(i=0;i!=4;++i)
{
ret=pox_system(cmd);
ret=iCheckSystemReturnValue(ret);
if(0==ret)
{
break;
}
fprintf(stderr,"remove devName = [%s] fail \r\n", devName);
sleep(1);
}
umount(devPath);
umount(devPath);
}
else if(strstr(buf, "DEVPATH=/devices/platform/ahci") != NULL)
{//sata硬盘
fprintf(stderr , "\n===============%s \n", buf);
sprintf(devPath, "/dev/%s", devName);
sprintf(cmd, "umount -f %s", devPath);
fprintf(stderr, "================cmd %s \n", cmd);
system(cmd);
system(cmd);
}
else
{
umount("/usb/usb0000");
umount("/usb/usb0001");
umount("/usb/usb0002");
umount("/usb/usb0003");
}
}
}
}
usleep(400*1000);
}
return NULL;
}
int main(int argc, char *argv[])
{
int hotplug_sock = init_hotplug_sock();
struct udev *udev;
struct udev_monitor *mon;
struct udv_device *dev;
const char *path;
const char *dev_node;
const char *action;
udev = udev_new();
if (udev == NULL) {
printf("new udev error!\n");
return -1;
}
mon = udev_monitor_new_from_netlink(udev, "udev");
if (mon == NULL) {
printf("create mon error!\n");
return -1;
}
if (udev_monitor_filter_add_match_subsystem_devtype(mon,
"block",
"disk") < 0) {
printf("udev monitor add match failed!\n");
udev_unref(udev);
return -1;
}
udev_monitor_set_receive_buffer_size(mon, 128*1024);
if (udev_monitor_enable_receiving(mon) < 0) {
printf("monitor enable failed!\n");
udev_monitor_unref(mon);
udev_unref(udev);
return -1;
}
struct udev_enumerate *uenum;
struct udev_list_entry *devs, *dev_list;
uenum = udev_enumerate_new(udev);
if (uenum == NULL) {
printf("uenum create failed.\n");
return -1;
}
if (udev_enumerate_add_match_subsystem(uenum, "block") < 0) {
printf("uenum add match subsystem failed.\n");
return -1;
}
if (udev_enumerate_scan_devices(uenum) < 0) {
printf ("uenum scan devices failed.\n");
return -1;
}
devs = udev_enumerate_get_list_entry(uenum);
udev_list_entry_foreach(dev_list, devs) {
path = udev_list_entry_get_name(dev_list);
if (path == NULL)
continue;
dev = udev_device_new_from_syspath(udev, path);
if (dev == NULL)
continue;
dev_node = udev_device_get_devnode(dev);
if (dev_node == NULL)
continue;
printf("=====enume path:%s, node:%s\n", path, dev_node);
}
