GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/initramdisk/toybox/toybox-0.8.8.patch/toys/other/insmod.c

@@ -0,0 +1,50 @@
+/* insmod.c - Load a module into the Linux kernel.
+ *
+ * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
+
+USE_INSMOD(NEWTOY(insmod, "<1", TOYFLAG_SBIN|TOYFLAG_NEEDROOT))
+
+config INSMOD
+  bool "insmod"
+  default y
+  help
+    usage: insmod MODULE [OPTION...]
+
+    Load the module named MODULE passing options if given.
+*/
+
+#include "toys.h"
+
+#ifndef SYS_finit_module
+#define SYS_finit_module      379
+#endif
+
+void insmod_main(void)
+{
+  int fd = xopenro(*toys.optargs);
+  int i, rc;
+
+  i = 1;
+  while (toys.optargs[i] &&
+    strlen(toybuf) + strlen(toys.optargs[i]) + 2 < sizeof(toybuf))
+  {
+    strcat(toybuf, toys.optargs[i++]);
+    strcat(toybuf, " ");
+  }
+
+  // finit_module doesn't work on stdin, so we fall back to init_module...
+  rc = syscall(SYS_finit_module, fd, toybuf, 0);
+  if (rc && (fd == 0 || errno == ENOSYS)) {
+    off_t len = 0;
+    char *path = !strcmp(*toys.optargs, "-") ? "/dev/stdin" : *toys.optargs;
+    char *buf = readfileat(AT_FDCWD, path, NULL, &len);
+
+    if (!buf) perror_exit("couldn't read %s", path);
+    rc = syscall(SYS_init_module, buf, len, toybuf);
+    if (CFG_TOYBOX_FREE) free(buf);
+  }
+
+  if (rc) perror_exit("failed to load %s", toys.optargs[0]);
+
+  if (CFG_TOYBOX_FREE) close(fd);
+}