/*
* Mini insmod implementation for busybox
*
- * Copyright (C) 1999,2000 by Lineo, inc.
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>
* and Ron Alder <alder@lineo.com>
*
#include <dirent.h>
#include <ctype.h>
#include <assert.h>
+#include <string.h>
#include <getopt.h>
#include <sys/utsname.h>
+#include <sys/syscall.h>
+#include <linux/unistd.h>
//----------------------------------------------------------------------------
//--------modutils module.h, lines 45-242
#ifndef MODUTILS_MODULE_H
-#define MODUTILS_MODULE_H 1
+static const int MODUTILS_MODULE_H = 1;
-#ident "$Id: insmod.c,v 1.33 2000/12/18 03:57:16 kraai Exp $"
+#ident "$Id: insmod.c,v 1.44 2001/01/27 09:33:38 andersen Exp $"
/* This file contains the structures used by the 2.0 and 2.1 kernels.
We do not use the kernel headers directly because we do not wish
};
/* Sent to init_module(2) or'ed into the code size parameter. */
-#define OLD_MOD_AUTOCLEAN 0x40000000 /* big enough, but no sign problems... */
+static const int OLD_MOD_AUTOCLEAN = 0x40000000; /* big enough, but no sign problems... */
int get_kernel_syms(struct old_kernel_sym *);
int old_sys_init_module(const char *name, char *code, unsigned codesize,
#undef tgt_sizeof_char_p
#undef tgt_sizeof_void_p
#undef tgt_long
-#define tgt_sizeof_long 8
-#define tgt_sizeof_char_p 8
-#define tgt_sizeof_void_p 8
+static const int tgt_sizeof_long = 8;
+static const int tgt_sizeof_char_p = 8;
+static const int tgt_sizeof_void_p = 8;
#define tgt_long long long
#endif
};
/* Bits of module.flags. */
-#define NEW_MOD_RUNNING 1
-#define NEW_MOD_DELETED 2
-#define NEW_MOD_AUTOCLEAN 4
-#define NEW_MOD_VISITED 8
-#define NEW_MOD_USED_ONCE 16
+static const int NEW_MOD_RUNNING = 1;
+static const int NEW_MOD_DELETED = 2;
+static const int NEW_MOD_AUTOCLEAN = 4;
+static const int NEW_MOD_VISITED = 8;
+static const int NEW_MOD_USED_ONCE = 16;
int new_sys_init_module(const char *name, const struct new_module *);
int query_module(const char *name, int which, void *buf, size_t bufsize,
/* Values for query_module's which. */
-#define QM_MODULES 1
-#define QM_DEPS 2
-#define QM_REFS 3
-#define QM_SYMBOLS 4
-#define QM_INFO 5
+static const int QM_MODULES = 1;
+static const int QM_DEPS = 2;
+static const int QM_REFS = 3;
+static const int QM_SYMBOLS = 4;
+static const int QM_INFO = 5;
/*======================================================================*/
/* The system calls unchanged between 2.0 and 2.1. */
#ifndef MODUTILS_OBJ_H
-#define MODUTILS_OBJ_H 1
+static const int MODUTILS_OBJ_H = 1;
-#ident "$Id: insmod.c,v 1.33 2000/12/18 03:57:16 kraai Exp $"
+#ident "$Id: insmod.c,v 1.44 2001/01/27 09:33:38 andersen Exp $"
/* The relocatable object is manipulated using elfin types. */
#define Elf32_RelM Elf32_Rel
#else
-#error insmod.c no platform specified
+#error Sorry, but insmod.c does not yet support this architecture...
#endif
#ifndef ElfW
#define _PATH_MODULES "/lib/modules"
-#define STRVERSIONLEN 32
-
-#if !defined(BB_FEATURE_INSMOD_NEW_KERNEL) && !defined(BB_FEATURE_INSMOD_OLD_KERNEL)
-#error "Must have ether BB_FEATURE_INSMOD_NEW_KERNEL or BB_FEATURE_INSMOD_OLD_KERNEL defined"
-#endif
+static const int STRVERSIONLEN = 32;
/*======================================================================*/
-- Bryan Rittmeyer <bryan@ixiacom.com> */
-#ifdef BB_FEATURE_INSMOD_OLD_KERNEL
+#ifdef BB_FEATURE_OLD_MODULE_INTERFACE
_syscall1(int, get_kernel_syms, struct old_kernel_sym *, ks)
#endif
#endif /* BB_FEATURE_INSMOD_VERSION_CHECKING */
-#ifdef BB_FEATURE_INSMOD_OLD_KERNEL
+#ifdef BB_FEATURE_OLD_MODULE_INTERFACE
/* Fetch all the symbols and divvy them up as appropriate for the modules. */
ksym->name =
(unsigned long) str - (unsigned long) symtab;
- str = strcpy(str, sym->name) + 1;
+ strcpy(str, sym->name);
+ str += strlen(sym->name) + 1;
ksym++;
}
}
#define old_create_mod_use_count(x) TRUE
#define old_init_module(x, y, z) TRUE
-#endif /* BB_FEATURE_INSMOD_OLD_KERNEL */
+#endif /* BB_FEATURE_OLD_MODULE_INTERFACE */
#endif /* BB_FEATURE_INSMOD_VERSION_CHECKING */
-#ifdef BB_FEATURE_INSMOD_NEW_KERNEL
+#ifdef BB_FEATURE_NEW_MODULE_INTERFACE
/* Fetch the loaded modules, and all currently exported symbols. */
#define new_create_module_ksymtab(x)
#define query_module(v, w, x, y, z) -1
-#endif /* BB_FEATURE_INSMOD_NEW_KERNEL */
+#endif /* BB_FEATURE_NEW_MODULE_INTERFACE */
/*======================================================================*/
extern int insmod_main( int argc, char **argv)
{
+ int opt;
int k_crcs;
int k_new_syscalls;
int len;
int m_crcs;
#endif
-
- if (argc <= 1) {
- usage(insmod_usage);
- }
-
/* Parse any options */
- while (--argc > 0 && **(++argv) == '-') {
- while (*(++(*argv))) {
- switch (**argv) {
+ while ((opt = getopt(argc, argv, "fkvxLo:")) > 0) {
+ switch (opt) {
case 'f': /* force loading */
flag_force_load = 1;
break;
case 'x': /* do not export externs */
flag_export = 0;
break;
+ case 'o': /* name the output module */
+ strncpy(m_name, optarg, BUFSIZ);
+ break;
+ case 'L': /* Stub warning */
+ /* This is needed for compatibility with modprobe.
+ * In theory, this does locking, but we don't do
+ * that. So be careful and plan your life around not
+ * loading the same module 50 times concurrently. */
+ break;
default:
usage(insmod_usage);
- }
}
}
-
- if (argc <= 0) {
+
+ if (argv[optind] == NULL) {
usage(insmod_usage);
}
+
/* Grab the module name */
- if ((tmp = strrchr(*argv, '/')) != NULL) {
+ if ((tmp = strrchr(argv[optind], '/')) != NULL) {
tmp++;
} else {
- tmp = *argv;
+ tmp = argv[optind];
}
len = strlen(tmp);
if (len > 2 && tmp[len - 2] == '.' && tmp[len - 1] == 'o')
len -= 2;
- memcpy(m_name, tmp, len);
- strcpy(m_fullName, m_name);
+ strncpy(m_fullName, tmp, len);
+ if (*m_name == '\0') {
+ strcpy(m_name, m_fullName);
+ }
strcat(m_fullName, ".o");
/* Get a filedesc for the module */
- if ((fp = fopen(*argv, "r")) == NULL) {
+ if ((fp = fopen(argv[optind], "r")) == NULL) {
/* Hmpf. Could not open it. Search through _PATH_MODULES to find a module named m_name */
if (recursive_action(_PATH_MODULES, TRUE, FALSE, FALSE,
findNamedModule, 0, m_fullName) == FALSE)
} else
error_msg_and_die("No module named '%s' found in '%s'\n", m_fullName, _PATH_MODULES);
} else
- memcpy(m_filename, *argv, strlen(*argv));
+ memcpy(m_filename, argv[optind], strlen(argv[optind]));
- if ((f = obj_load(fp)) == NULL) {
- perror("Could not load the module\n");
- return EXIT_FAILURE;
- }
+ if ((f = obj_load(fp)) == NULL)
+ perror_msg_and_die("Could not load the module");
if (get_modinfo_value(f, "kernel_version") == NULL)
m_has_modinfo = 0;
k_new_syscalls = !query_module(NULL, 0, NULL, 0, NULL);
if (k_new_syscalls) {
-#ifdef BB_FEATURE_INSMOD_NEW_KERNEL
+#ifdef BB_FEATURE_NEW_MODULE_INTERFACE
if (!new_get_kernel_symbols())
goto out;
k_crcs = new_is_kernel_checksummed();
goto out;
#endif
} else {
-#ifdef BB_FEATURE_INSMOD_OLD_KERNEL
+#ifdef BB_FEATURE_OLD_MODULE_INTERFACE
if (!old_get_kernel_symbols(m_name))
goto out;
k_crcs = old_is_kernel_checksummed();
}
obj_allocate_commons(f);
+ /* done with the module name, on to the optional var=value arguments */
+ ++optind;
+
if (optind < argc) {
if (m_has_modinfo
? !new_process_module_arguments(f, argc - optind, argv + optind)
m_size = obj_load_size(f);
- errno = 0;
m_addr = create_module(m_name, m_size);
- switch (errno) {
- case 0:
- break;
+ if (m_addr==-1) switch (errno) {
case EEXIST:
error_msg("A module named %s already exists\n", m_name);
goto out;
projects / oweals / busybox.git / blobdiff