Add in first draft of insmod. Not yet working (but will Real Soon Now(tm))

 -Erik

1 files changed, 113 insertions, 0 deletions

diff --git a/insmod.c b/insmod.c
new file mode 100644
index 0000000..9a0daa7
--- /dev/null
+++ b/insmod.c
@@ -0,0 +1,113 @@
+/*
+ * Mini insmod implementation for busybox
+ *
+ * Copyright (C) 1999 by Lineo, inc.
+ * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "internal.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/syscall.h>
+#include <linux/module.h>
+
+/* Some firendly syscalls to cheer everyone's day...  */
+_syscall2(int, init_module, const char *, name,
+	const struct module *, info)
+
+#ifndef BB_RMMOD
+_syscall1(int, delete_module, const char *, name)
+#else
+extern int delete_module(const char *);
+#endif
+
+#if defined(__i386__) || defined(__m68k__) || defined(__arm__)
+/* Jump through hoops to fixup error return codes */
+#define __NR__create_module  __NR_create_module
+static inline _syscall2(long, _create_module, const char *, name, size_t, size)
+unsigned long create_module(const char *name, size_t size)
+{
+    long ret = _create_module(name, size);
+    if (ret == -1 && errno > 125) {
+	ret = -errno;
+	errno = 0;
+    }
+    return ret;
+}
+#else
+_syscall2(unsigned long, create_module, const char *, name, size_t, size)
+#endif
+
+
+static const char insmod_usage[] =
+    "insmod [OPTION]... MODULE [symbol=value]...\n\n"
+    "Loads the specified kernel modules into the kernel.\n\n"
+    "Options:\n"
+    "\t-f\tForce module to load into the wrong kernel version.\n"
+    "\t-k\tMake module autoclean-able.\n";
+
+
+
+extern int insmod_main(int argc, char **argv)
+{
+    int len;
+    char m_name[PATH_MAX];
+    char* tmp;
+
+
+
+    if (argc<=1) {
+	usage( insmod_usage);
+    }
+
+    /* Parse any options */
+    while (--argc > 0 && **(++argv) == '-') {
+	while (*(++(*argv))) {
+	    switch (**argv) {
+	    case 'f':
+		break;
+	    case 'k':
+		break;
+	    default:
+		usage(insmod_usage);
+	    }
+	}
+    }
+
+    if (argc <= 0 )
+	usage(insmod_usage);
+
+    /* Grab the module name */
+    if ((tmp = strrchr(*argv, '/')) != NULL)
+	tmp++;
+    else 
+	tmp = *argv;
+    len = strlen(tmp);
+
+    if (len > 2 && tmp[len - 2] == '.' && tmp[len - 1] == 'o')
+	len -= 2;
+    memcpy(m_name, tmp, len);
+
+    fprintf(stderr, "m_name='%s'\n", m_name);
+
+    
+    exit( TRUE);
+}