--- a/modutils/insmod.c
+++ b/modutils/insmod.c
-@@ -61,21 +61,117 @@
+@@ -9,6 +9,99 @@
+
#include "libbb.h"
- #include <libgen.h>
- #include <sys/utsname.h>
-+#if ENABLE_FEATURE_2_6_MODULES
+ #include "modutils.h"
++#include <sys/utsname.h>
++#ifndef CONFIG_FEATURE_2_4_MODULES
+#include <sys/mman.h>
+#include <asm/unistd.h>
+#include <sys/syscall.h>
+#endif
-
- #if !ENABLE_FEATURE_2_4_MODULES && !ENABLE_FEATURE_2_6_MODULES
- #undef ENABLE_FEATURE_2_4_MODULES
- #define ENABLE_FEATURE_2_4_MODULES 1
- #endif
-
--/*
-- * Big piece of 2.4-specific code
-- */
- #if ENABLE_FEATURE_2_4_MODULES
--
-+int insmod_main_24(int argc, char **argv);
-+#endif
- #if ENABLE_FEATURE_2_6_MODULES
--static int insmod_ng_main(int argc, char **argv);
-+int insmod_main_26(int argc, char **argv);
- #endif
-+int insmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-
++
+static char *g_filename = NULL;
-+#define _PATH_MODULES "/lib/modules"
+
-+static int check_module_name_match(const char *filename, struct stat *statbuf,
++static int FAST_FUNC check_module_name_match(const char *filename, struct stat *statbuf,
+ void *userdata, int depth)
+{
+ char *fullname = (char *) userdata;
+ * follow symlinks, but we do want to follow the
+ * /lib/modules/`uname -r` dir, So resolve it ourselves
+ * if it is a link... */
-+ module_dir = concat_path_file(_PATH_MODULES, myuname.release);
++ module_dir = concat_path_file(CONFIG_DEFAULT_MODULES_DIR, myuname.release);
+ if (realpath(module_dir, real_module_dir) != NULL) {
+ free(module_dir);
+ module_dir = real_module_dir;
+
+ return ret;
+}
-+
-+/*
-+ * Big piece of 2.4-specific code
-+ */
-+#if ENABLE_FEATURE_2_4_MODULES
- #if ENABLE_FEATURE_INSMOD_LOADINKMEM
- #define LOADBITS 0
- #else
-@@ -184,7 +280,6 @@
- /* Microblaze */
- #if defined(__microblaze__)
- #define USE_SINGLE
--#include <linux/elf-em.h>
- #define MATCH_MACHINE(x) (x == EM_XILINX_MICROBLAZE)
- #define SHT_RELM SHT_RELA
- #define Elf32_RelM Elf32_Rela
-@@ -452,7 +547,7 @@
- /* The system calls unchanged between 2.0 and 2.1. */
-
- unsigned long create_module(const char *, size_t);
--int delete_module(const char *module, unsigned int flags);
-+int delete_module(const char *);
-
-
- #endif /* module.h */
-@@ -652,7 +747,7 @@
-
- static enum obj_reloc arch_apply_relocation(struct obj_file *f,
- struct obj_section *targsec,
-- /*struct obj_section *symsec,*/
-+ struct obj_section *symsec,
- struct obj_symbol *sym,
- ElfW(RelM) *rel, ElfW(Addr) value);
-
-@@ -673,6 +768,7 @@
- #define SPFX ""
- #endif
-
-+
- enum { STRVERSIONLEN = 64 };
-
- /*======================================================================*/
-@@ -788,28 +884,6 @@
- static char *m_fullName;
-
-
--/*======================================================================*/
--
--
--static int check_module_name_match(const char *filename,
-- struct stat *statbuf ATTRIBUTE_UNUSED,
-- void *userdata, int depth ATTRIBUTE_UNUSED)
--{
-- char *fullname = (char *) userdata;
-- char *tmp;
--
-- if (fullname[0] == '\0')
-- return FALSE;
--
-- tmp = bb_get_last_path_component_nostrip(filename);
-- if (strcmp(tmp, fullname) == 0) {
-- /* Stop searching if we find a match */
-- m_filename = xstrdup(filename);
-- return FALSE;
-- }
-- return TRUE;
--}
--
-
- /*======================================================================*/
-
-@@ -835,32 +909,20 @@
- static enum obj_reloc
- arch_apply_relocation(struct obj_file *f,
- struct obj_section *targsec,
-- /*struct obj_section *symsec,*/
-+ struct obj_section *symsec,
- struct obj_symbol *sym,
- ElfW(RelM) *rel, ElfW(Addr) v)
- {
--#if defined(__arm__) || defined(__i386__) || defined(__mc68000__) \
-- || defined(__sh__) || defined(__s390__) || defined(__x86_64__) \
-- || defined(__powerpc__) || defined(__mips__)
- struct arch_file *ifile = (struct arch_file *) f;
--#endif
- enum obj_reloc ret = obj_reloc_ok;
- ElfW(Addr) *loc = (ElfW(Addr) *) (targsec->contents + rel->r_offset);
--#if defined(__arm__) || defined(__H8300H__) || defined(__H8300S__) \
-- || defined(__i386__) || defined(__mc68000__) || defined(__microblaze__) \
-- || defined(__mips__) || defined(__nios2__) || defined(__powerpc__) \
-- || defined(__s390__) || defined(__sh__) || defined(__x86_64__)
- ElfW(Addr) dot = targsec->header.sh_addr + rel->r_offset;
--#endif
- #if defined(USE_GOT_ENTRIES) || defined(USE_PLT_ENTRIES)
- struct arch_symbol *isym = (struct arch_symbol *) sym;
- #endif
--#if defined(__arm__) || defined(__i386__) || defined(__mc68000__) \
-- || defined(__sh__) || defined(__s390__)
- #if defined(USE_GOT_ENTRIES)
- ElfW(Addr) got = ifile->got ? ifile->got->header.sh_addr : 0;
- #endif
--#endif
- #if defined(USE_PLT_ENTRIES)
- ElfW(Addr) plt = ifile->plt ? ifile->plt->header.sh_addr : 0;
- unsigned long *ip;
-@@ -954,7 +1016,6 @@
-
- case R_386_PLT32:
- case R_386_PC32:
-- case R_386_GOTOFF:
- *loc += v - dot;
- break;
-
-@@ -973,6 +1034,9 @@
-
- case R_386_GOT32:
- goto bb_use_got;
-+
-+ case R_386_GOTOFF:
-+ *loc += v - got;
- break;
-
- #elif defined(__microblaze__)
-@@ -1759,7 +1823,7 @@
-
- #if defined(USE_SINGLE)
-
--static int arch_single_init(/*ElfW(RelM) *rel,*/ struct arch_single_entry *single,
-+static int arch_single_init(ElfW(RelM) *rel, struct arch_single_entry *single,
- int offset, int size)
- {
- if (single->allocated == 0) {
-@@ -1907,7 +1971,7 @@
- #if defined(USE_GOT_ENTRIES)
- if (got_allocate) {
- got_offset += arch_single_init(
-- /*rel,*/ &intsym->gotent,
-+ rel, &intsym->gotent,
- got_offset, GOT_ENTRY_SIZE);
-
- got_needed = 1;
-@@ -1921,7 +1985,7 @@
- plt_offset, PLT_ENTRY_SIZE);
- #else
- plt_offset += arch_single_init(
-- /*rel,*/ &intsym->pltent,
-+ rel, &intsym->pltent,
- plt_offset, PLT_ENTRY_SIZE);
- #endif
- plt_needed = 1;
-@@ -1959,8 +2023,7 @@
- while (n > 0) {
- ch = *name++;
- h = (h << 4) + ch;
-- g = (h & 0xf0000000);
-- if (g != 0) {
-+ if ((g = (h & 0xf0000000)) != 0) {
- h ^= g >> 24;
- h &= ~g;
- }
-@@ -2039,7 +2102,7 @@
- int n_type = ELF_ST_TYPE(info);
- int n_binding = ELF_ST_BIND(info);
-
-- for (sym = f->symtab[hash]; sym; sym = sym->next) {
-+ for (sym = f->symtab[hash]; sym; sym = sym->next)
- if (f->symbol_cmp(sym->name, name) == 0) {
- int o_secidx = sym->secidx;
- int o_info = sym->info;
-@@ -2098,14 +2161,14 @@
- return sym;
- }
- }
-- }
-
- /* Completely new symbol. */
- sym = arch_new_symbol();
- sym->next = f->symtab[hash];
- f->symtab[hash] = sym;
- sym->ksymidx = -1;
-- if (ELF_ST_BIND(info) == STB_LOCAL && symidx != (unsigned long)(-1)) {
-+
-+ if (ELF_ST_BIND(info) == STB_LOCAL && symidx != -1) {
- if (symidx >= f->local_symtab_size)
- bb_error_msg("local symbol %s with index %ld exceeds local_symtab_size %ld",
- name, (long) symidx, (long) f->local_symtab_size);
-@@ -3228,7 +3291,7 @@
-
- /* Do it! */
- switch (arch_apply_relocation
-- (f, targsec, /*symsec,*/ intsym, rel, value)
-+ (f, targsec, symsec, intsym, rel, value)
- ) {
- case obj_reloc_ok:
- break;
-@@ -3307,11 +3370,11 @@
-
- /*======================================================================*/
-
--static struct obj_file *obj_load(FILE * fp, int loadprogbits ATTRIBUTE_UNUSED)
-+static struct obj_file *obj_load(FILE * fp, int loadprogbits)
- {
- struct obj_file *f;
- ElfW(Shdr) * section_headers;
-- size_t shnum, i;
-+ int shnum, i;
- char *shstrtab;
-
- /* Read the file header. */
-@@ -3583,7 +3646,7 @@
- while (ptr < endptr) {
- value = strchr(ptr, '=');
- if (value && strncmp(ptr, "license", value-ptr) == 0) {
-- unsigned i;
-+ int i;
- if (license)
- *license = value+1;
- for (i = 0; i < ARRAY_SIZE(gpl_licenses); ++i) {
-@@ -3687,9 +3750,6 @@
- * start of some sections. this info is used by ksymoops to do better
- * debugging.
- */
--#if !ENABLE_FEATURE_INSMOD_VERSION_CHECKING
--#define get_module_version(f, str) get_module_version(str)
--#endif
- static int
- get_module_version(struct obj_file *f, char str[STRVERSIONLEN])
- {
-@@ -3722,8 +3782,7 @@
- struct obj_symbol *sym;
- char *name, *absolute_filename;
- char str[STRVERSIONLEN];
-- unsigned i;
-- int l, lm_name, lfilename, use_ksymtab, version;
-+ int i, l, lm_name, lfilename, use_ksymtab, version;
- struct stat statbuf;
-
- /* WARNING: was using realpath, but replaced by readlink to stop using
-@@ -3910,145 +3969,57 @@
- void print_load_map(struct obj_file *f);
- #endif
-
--int insmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
--int insmod_main(int argc, char **argv)
-+int insmod_main_24( int argc, char **argv)
- {
- char *opt_o, *arg1;
-- int len;
- int k_crcs;
-- char *tmp, *tmp1;
- unsigned long m_size;
- ElfW(Addr) m_addr;
- struct obj_file *f;
-- struct stat st;
-- char *m_name = NULL;
-- int exit_status = EXIT_FAILURE;
-+ char *tmp = NULL, *m_name = NULL;
-+ int ret = EINVAL;
- int m_has_modinfo;
- #if ENABLE_FEATURE_INSMOD_VERSION_CHECKING
- struct utsname uts_info;
- char m_strversion[STRVERSIONLEN];
- int m_version, m_crcs;
- #endif
--#if ENABLE_FEATURE_CLEAN_UP
- FILE *fp = NULL;
--#else
-- FILE *fp;
--#endif
-- int k_version = 0;
-+ int k_version;
- struct utsname myuname;
-
-+ /* check the kernel version */
-+ if ((uname(&myuname) != 0) || (myuname.release[0] != '2'))
-+ return EINVAL;
-+
-+ k_version = myuname.release[2] - '0';
-+ if (k_version > 4)
-+ return ENOTSUP;
-+
- /* Parse any options */
- getopt32(argv, OPTION_STR, &opt_o);
- arg1 = argv[optind];
- if (option_mask32 & OPT_o) { // -o /* name the output module */
-- free(m_name);
- m_name = xstrdup(opt_o);
- }
-
-- if (arg1 == NULL) {
-+ if (arg1 == NULL)
- bb_show_usage();
-- }
-
-- /* Grab the module name */
-- tmp1 = xstrdup(arg1);
-- tmp = basename(tmp1);
-- len = strlen(tmp);
--
-- if (uname(&myuname) == 0) {
-- if (myuname.release[0] == '2') {
-- k_version = myuname.release[2] - '0';
-- }
-- }
--
--#if ENABLE_FEATURE_2_6_MODULES
-- if (k_version > 4 && len > 3 && tmp[len - 3] == '.'
-- && tmp[len - 2] == 'k' && tmp[len - 1] == 'o'
-- ) {
-- len -= 3;
-- tmp[len] = '\0';
-- } else
--#endif
-- if (len > 2 && tmp[len - 2] == '.' && tmp[len - 1] == 'o') {
-- len -= 2;
-- tmp[len] = '\0';
-- }
--
--
--#if ENABLE_FEATURE_2_6_MODULES
-- if (k_version > 4)
-- m_fullName = xasprintf("%s.ko", tmp);
-- else
--#endif
-- m_fullName = xasprintf("%s.o", tmp);
-+ ret = find_module(arg1);
-+ if (ret)
-+ goto out;
-
- if (!m_name) {
-- m_name = tmp;
-- } else {
-- free(tmp1);
-- tmp1 = NULL; /* flag for free(m_name) before exit() */
-- }
--
-- /* Get a filedesc for the module. Check that we have a complete path */
-- if (stat(arg1, &st) < 0 || !S_ISREG(st.st_mode)
-- || (fp = fopen(arg1, "r")) == NULL
-- ) {
-- /* Hmm. Could not open it. First search under /lib/modules/`uname -r`,
-- * but do not error out yet if we fail to find it... */
-- if (k_version) { /* uname succeedd */
-- char *module_dir;
-- char *tmdn;
--
-- tmdn = concat_path_file(CONFIG_DEFAULT_MODULES_DIR, myuname.release);
-- /* Jump through hoops in case /lib/modules/`uname -r`
-- * is a symlink. We do not want recursive_action to
-- * follow symlinks, but we do want to follow the
-- * /lib/modules/`uname -r` dir, So resolve it ourselves
-- * if it is a link... */
-- module_dir = xmalloc_readlink(tmdn);
-- if (!module_dir)
-- module_dir = xstrdup(tmdn);
-- recursive_action(module_dir, ACTION_RECURSE,
-- check_module_name_match, NULL, m_fullName, 0);
-- free(module_dir);
-- free(tmdn);
-- }
--
-- /* Check if we have found anything yet */
-- if (!m_filename || ((fp = fopen(m_filename, "r")) == NULL)) {
-- int r;
-- char *module_dir;
--
-- free(m_filename);
-- m_filename = NULL;
-- module_dir = xmalloc_readlink(CONFIG_DEFAULT_MODULES_DIR);
-- if (!module_dir)
-- module_dir = xstrdup(CONFIG_DEFAULT_MODULES_DIR);
-- /* No module found under /lib/modules/`uname -r`, this
-- * time cast the net a bit wider. Search /lib/modules/ */
-- r = recursive_action(module_dir, ACTION_RECURSE,
-- check_module_name_match, NULL, m_fullName, 0);
-- if (r)
-- bb_error_msg_and_die("%s: module not found", m_fullName);
-- free(module_dir);
-- if (m_filename == NULL
-- || ((fp = fopen(m_filename, "r")) == NULL)
-- ) {
-- bb_error_msg_and_die("%s: module not found", m_fullName);
-- }
-+ tmp = xstrdup(arg1);
-+ m_name = basename(tmp);
- }
-- } else
-- m_filename = xstrdup(arg1);
-
-- if (flag_verbose)
-- printf("Using %s\n", m_filename);
--
--#if ENABLE_FEATURE_2_6_MODULES
-- if (k_version > 4) {
-- argv[optind] = m_filename;
-- optind--;
-- return insmod_ng_main(argc - optind, argv + optind);
-+ fp = fopen(g_filename, "r");
-+ if (!fp) {
-+ ret = errno;
-+ goto out;
- }
--#endif
-
- f = obj_load(fp, LOADBITS);
-
-@@ -4075,7 +4046,7 @@
- "\t%s was compiled for kernel version %s\n"
- "\twhile this kernel is version %s",
- flag_force_load ? "warning: " : "",
-- m_filename, m_strversion, uts_info.release);
-+ g_filename, m_strversion, uts_info.release);
- if (!flag_force_load)
- goto out;
- }
-@@ -4117,7 +4088,7 @@
- hide_special_symbols(f);
-
- #if ENABLE_FEATURE_INSMOD_KSYMOOPS_SYMBOLS
-- add_ksymoops_symbols(f, m_filename, m_name);
-+ add_ksymoops_symbols(f, g_filename, m_name);
- #endif /* FEATURE_INSMOD_KSYMOOPS_SYMBOLS */
-
- new_create_module_ksymtab(f);
-@@ -4126,7 +4097,7 @@
- m_size = obj_load_size(f);
-
- m_addr = create_module(m_name, m_size);
-- if (m_addr == (ElfW(Addr))(-1)) switch (errno) {
-+ if (m_addr == -1) switch (errno) {
- case EEXIST:
- bb_error_msg_and_die("a module named %s already exists", m_name);
- case ENOMEM:
-@@ -4142,36 +4113,37 @@
- * now we can load them directly into the kernel memory
- */
- if (!obj_load_progbits(fp, f, (char*)m_addr)) {
-- delete_module(m_name, 0);
-+ delete_module(m_name);
- goto out;
- }
- #endif
- if (!obj_relocate(f, m_addr)) {
-- delete_module(m_name, 0);
-+ delete_module(m_name);
- goto out;
- }
-
- if (!new_init_module(m_name, f, m_size)) {
-- delete_module(m_name, 0);
-+ delete_module(m_name);
- goto out;
- }
-
- if (flag_print_load_map)
- print_load_map(f);
-
-- exit_status = EXIT_SUCCESS;
-+ ret = EXIT_SUCCESS;
-
- out:
- #if ENABLE_FEATURE_CLEAN_UP
- if (fp)
- fclose(fp);
-- free(tmp1);
-- if (!tmp1)
-+ if (tmp)
-+ free(tmp);
-+ else if (m_name)
- free(m_name);
-- free(m_filename);
-+ free(g_filename);
- #endif
-- return exit_status;
-+ return ret;
- }
-
- #endif /* ENABLE_FEATURE_2_4_MODULES */
-@@ -4183,15 +4155,8 @@
- #if ENABLE_FEATURE_2_6_MODULES
-
- #include <sys/mman.h>
--
--#if defined __UCLIBC__ && !ENABLE_FEATURE_2_4_MODULES
--/* big time suckage. The old prototype above renders our nice fwd-decl wrong */
--extern int init_module(void *module, unsigned long len, const char *options);
--#else
- #include <asm/unistd.h>
- #include <sys/syscall.h>
--#define init_module(mod, len, opts) syscall(__NR_init_module, mod, len, opts)
--#endif
-
- /* We use error numbers in a loose translation... */
- static const char *moderror(int err)
-@@ -4210,22 +4175,32 @@
- }
- }
-
--#if !ENABLE_FEATURE_2_4_MODULES
--int insmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
--int insmod_main(int argc ATTRIBUTE_UNUSED, char **argv)
--#else
--static int insmod_ng_main(int argc ATTRIBUTE_UNUSED, char **argv)
--#endif
-+int insmod_main_26(int argc, char **argv)
- {
-- size_t len;
-+ char *filename, *options;
-+ struct utsname myuname;
-+ int k_version;
- int optlen;
-+ size_t len;
- void *map;
-- char *filename, *options;
-+ long ret = 0;
-+
-+ /* check the kernel version */
-+ if ((uname(&myuname) != 0) || (myuname.release[0] != '2'))
-+ return EINVAL;
-+
-+ k_version = myuname.release[2] - '0';
-+ if (k_version <= 4)
-+ return ENOTSUP;
-
- filename = *++argv;
+ int insmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+ int insmod_main(int argc UNUSED_PARAM, char **argv)
+@@ -25,9 +118,14 @@ int insmod_main(int argc UNUSED_PARAM, c
if (!filename)
bb_show_usage();
-+ ret = find_module(filename);
-+ if (ret || (g_filename == NULL))
-+ goto done;
+- rc = bb_init_module(filename, parse_cmdline_module_options(argv));
++ rc = find_module(filename);
++ if (rc || (g_filename == NULL))
++ goto done;
+
- /* Rest is options */
- options = xzalloc(1);
- optlen = 0;
-@@ -4235,41 +4210,47 @@
- optlen += sprintf(options + optlen, (strchr(*argv,' ') ? "\"%s\" " : "%s "), *argv);
- }
-
--#if 0
-- /* Any special reason why mmap? It isn't performance critical. -vda */
-- /* Yes, xmalloc'ing can use *alot* of RAM. Don't forget that there are
-- * modules out there that are half a megabyte! mmap()ing is way nicer
-- * for small mem boxes, i guess. */
-- /* But after load, these modules will take up that 0.5mb in kernel
-- * anyway. Using malloc here causes only a transient spike to 1mb,
-- * after module is loaded, we go back to normal 0.5mb usage
-- * (in kernel). Also, mmap isn't magic - when we touch mapped data,
-- * we use memory. -vda */
-- int fd;
-- struct stat st;
-- unsigned long len;
-- fd = xopen(filename, O_RDONLY);
-- fstat(fd, &st);
-- len = st.st_size;
-- map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
-- if (map == MAP_FAILED) {
-- bb_perror_msg_and_die("cannot mmap '%s'", filename);
-- }
++ rc = bb_init_module(g_filename, parse_cmdline_module_options(argv));
+ if (rc)
+ bb_error_msg("cannot insert '%s': %s", filename, moderror(rc));
-
-- /* map == NULL on Blackfin, probably on other MMU-less systems too. Workaround. */
-- if (map == NULL) {
-- map = xmalloc(len);
-- xread(fd, map, len);
-- }
--#else
- len = MAXINT(ssize_t);
-- map = xmalloc_open_read_close(filename, &len);
--#endif
-+ map = xmalloc_open_read_close(g_filename, &len);
-+ ret = syscall(__NR_init_module, map, len, options);
-+ if (ret != 0) {
-+ bb_perror_msg_and_die("cannot insert '%s': %s (%li)",
-+ g_filename, moderror(errno), ret);
-+ }
++ free (g_filename);
+done:
-+ if (g_filename && (g_filename != filename))
-+ free(g_filename);
-
-- if (init_module(map, len, options) != 0)
-- bb_error_msg_and_die("cannot insert '%s': %s",
-- filename, moderror(errno));
-- return 0;
-+ return ret;
+ return rc;
}
-
- #endif
-+
-+int insmod_main(int argc, char **argv)
-+{
-+ int ret;
-+
-+ g_filename = NULL;
-+#if ENABLE_FEATURE_2_6_MODULES
-+ ret = insmod_main_26(argc, argv);
-+ if (ret != ENOTSUP)
-+ goto done;
-+#endif
-+
-+#if ENABLE_FEATURE_2_4_MODULES
-+ ret = insmod_main_24(argc, argv);
-+ if (ret != ENOTSUP)
-+ goto done;
-+#endif
-+
-+ fprintf(stderr, "Error: Kernel version not supported\n");
-+ return 1;
-+
-+done:
-+ if (ret) {
-+ errno = ret;
-+ bb_perror_msg("Loading module failed");
-+ return ret;
-+ } else
-+ return 0;
-+}
projects / openwrt.git / blobdiff