#include <errno.h>
#include <ctype.h>
#include <dirent.h>
+#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <sys/utsname.h>
#include "list.h"
-int udev_init_device(struct udevice *udev, const char* devpath, const char *subsystem)
+int udev_init_device(struct udevice *udev, const char* devpath, const char *subsystem, const char *action)
{
char *pos;
memset(udev, 0x00, sizeof(struct udevice));
INIT_LIST_HEAD(&udev->symlink_list);
+ INIT_LIST_HEAD(&udev->run_list);
if (subsystem)
strlcpy(udev->subsystem, subsystem, sizeof(udev->subsystem));
+ if (action)
+ strlcpy(udev->action, action, sizeof(udev->action));
+
if (devpath) {
strlcpy(udev->devpath, devpath, sizeof(udev->devpath));
- no_trailing_slash(udev->devpath);
+ remove_trailing_char(udev->devpath, '/');
if (strncmp(udev->devpath, "/block/", 7) == 0)
udev->type = DEV_BLOCK;
}
}
- udev->mode = 0660;
- strcpy(udev->owner, "root");
- strcpy(udev->group, "root");
+ if (udev->type == DEV_BLOCK || udev->type == DEV_CLASS) {
+ udev->mode = 0660;
+ strcpy(udev->owner, "root");
+ strcpy(udev->group, "root");
+ }
return 0;
}
return count - cur;
}
-void no_trailing_slash(char *path)
+void replace_untrusted_chars(char *string)
+{
+ size_t len;
+
+ for (len = 0; string[len] != '\0'; len++) {
+ if (strchr(";,~\\()\'", string[len])) {
+ info("replace '%c' in '%s'", string[len], string);
+ string[len] = '_';
+ }
+ }
+}
+
+void remove_trailing_char(char *path, char c)
{
size_t len;
len = strlen(path);
- while (len > 0 && path[len-1] == '/')
+ while (len > 0 && path[len-1] == c)
path[--len] = '\0';
}
closedir(dir);
return 0;
}
+
+int execute_command(const char *command, const char *subsystem)
+{
+ int retval;
+ pid_t pid;
+ char arg[PATH_SIZE];
+ char *argv[(PATH_SIZE / 2) + 1];
+ char *pos;
+ int devnull;
+ int i;
+
+ strlcpy(arg, command, sizeof(arg));
+ i = 0;
+ if (strchr(arg, ' ')) {
+ pos = arg;
+ while (pos != NULL) {
+ if (pos[0] == '\'') {
+ /* don't separate if in apostrophes */
+ pos++;
+ argv[i] = strsep(&pos, "\'");
+ while (pos && pos[0] == ' ')
+ pos++;
+ } else {
+ argv[i] = strsep(&pos, " ");
+ }
+ dbg("arg[%i] '%s'", i, argv[i]);
+ i++;
+ }
+ argv[i] = NULL;
+ dbg("execute '%s' with parsed arguments", arg);
+ } else {
+ argv[0] = arg;
+ argv[1] = (char *) subsystem;
+ argv[2] = NULL;
+ dbg("execute '%s' with subsystem '%s' argument", arg, argv[1]);
+ }
+
+ pid = fork();
+ switch (pid) {
+ case 0:
+ /* child */
+ devnull = open("/dev/null", O_RDWR);
+ if (devnull >= 0) {
+ dup2(devnull, STDIN_FILENO);
+ dup2(devnull, STDOUT_FILENO);
+ dup2(devnull, STDERR_FILENO);
+ close(devnull);
+ }
+ retval = execv(arg, argv);
+ err("exec of child failed");
+ _exit(1);
+ case -1:
+ dbg("fork of child failed");
+ break;
+ return -1;
+ default:
+ waitpid(pid, NULL, 0);
+ }
+
+ return 0;
+}