diff options
Diffstat (limited to 'packages/klibc/files/modprobe.patch')
| -rw-r--r-- | packages/klibc/files/modprobe.patch | 1985 |
1 files changed, 1985 insertions, 0 deletions
diff --git a/packages/klibc/files/modprobe.patch b/packages/klibc/files/modprobe.patch new file mode 100644 index 0000000000..074b0b6311 --- /dev/null +++ b/packages/klibc/files/modprobe.patch @@ -0,0 +1,1985 @@ +Index: klibc-1.5/usr/utils/Kbuild +=================================================================== +--- klibc-1.5.orig/usr/utils/Kbuild 2008-03-07 22:01:45.223695348 +0100 ++++ klibc-1.5/usr/utils/Kbuild 2008-03-07 22:48:44.660783243 +0100 +@@ -3,8 +3,8 @@ + # + + progs := chroot dd mkdir mkfifo mknod mount pivot_root umount +-progs += true false sleep ln nuke minips cat +-progs += insmod uname halt kill readlink cpio ++progs += true false sleep ln nuke minips cat losetup ++progs += insmod uname halt kill readlink cpio modprobe + + static-y := $(addprefix static/, $(progs)) + shared-y := $(addprefix shared/, $(progs)) +@@ -52,7 +52,10 @@ + shared/readlink-y := readlink.o + static/cpio-y := cpio.o + shared/cpio-y := cpio.o +- ++static/modprobe-y := modprobe.o ++shared/modprobe-y := modprobe.o ++static/losetup-y := losetup.o ++shared/losetup-y := losetup.o + # Additionally linked targets + always := static/reboot static/poweroff shared/reboot shared/poweroff + +Index: klibc-1.5/usr/utils/list.h +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ klibc-1.5/usr/utils/list.h 2008-03-07 22:33:22.287688586 +0100 +@@ -0,0 +1,238 @@ ++/* Stolen from Linux Kernel Source's list.h -- GPL. */ ++#ifndef _MODINITTOOLS_LIST_H ++#define _MODINITTOOLS_LIST_H ++ ++#undef offsetof ++#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) ++ ++/** ++ * container_of - cast a member of a structure out to the containing structure ++ * ++ * @ptr: the pointer to the member. ++ * @type: the type of the container struct this is embedded in. ++ * @member: the name of the member within the struct. ++ * ++ */ ++#define container_of(ptr, type, member) ({ \ ++ const typeof( ((type *)0)->member ) *__mptr = (ptr); \ ++ (type *)( (char *)__mptr - offsetof(type,member) );}) ++ ++/* ++ * Simple doubly linked list implementation. ++ * ++ * Some of the internal functions ("__xxx") are useful when ++ * manipulating whole lists rather than single entries, as ++ * sometimes we already know the next/prev entries and we can ++ * generate better code by using them directly rather than ++ * using the generic single-entry routines. ++ */ ++ ++struct list_head { ++ struct list_head *next, *prev; ++}; ++ ++#define LIST_HEAD_INIT(name) { &(name), &(name) } ++ ++#define LIST_HEAD(name) \ ++ struct list_head name = LIST_HEAD_INIT(name) ++ ++#define INIT_LIST_HEAD(ptr) do { \ ++ (ptr)->next = (ptr); (ptr)->prev = (ptr); \ ++} while (0) ++ ++/* ++ * Insert a new entry between two known consecutive entries. ++ * ++ * This is only for internal list manipulation where we know ++ * the prev/next entries already! ++ */ ++static inline void __list_add(struct list_head *new, ++ struct list_head *prev, ++ struct list_head *next) ++{ ++ next->prev = new; ++ new->next = next; ++ new->prev = prev; ++ prev->next = new; ++} ++ ++/** ++ * list_add - add a new entry ++ * @new: new entry to be added ++ * @head: list head to add it after ++ * ++ * Insert a new entry after the specified head. ++ * This is good for implementing stacks. ++ */ ++static inline void list_add(struct list_head *new, struct list_head *head) ++{ ++ __list_add(new, head, head->next); ++} ++ ++/** ++ * list_add_tail - add a new entry ++ * @new: new entry to be added ++ * @head: list head to add it before ++ * ++ * Insert a new entry before the specified head. ++ * This is useful for implementing queues. ++ */ ++static inline void list_add_tail(struct list_head *new, struct list_head *head) ++{ ++ __list_add(new, head->prev, head); ++} ++ ++/* ++ * Delete a list entry by making the prev/next entries ++ * point to each other. ++ * ++ * This is only for internal list manipulation where we know ++ * the prev/next entries already! ++ */ ++static inline void __list_del(struct list_head * prev, struct list_head * next) ++{ ++ next->prev = prev; ++ prev->next = next; ++} ++ ++/** ++ * list_del - deletes entry from list. ++ * @entry: the element to delete from the list. ++ * Note: list_empty on entry does not return true after this, the entry is ++ * in an undefined state. ++ */ ++static inline void list_del(struct list_head *entry) ++{ ++ __list_del(entry->prev, entry->next); ++} ++ ++/** ++ * list_del_init - deletes entry from list and reinitialize it. ++ * @entry: the element to delete from the list. ++ */ ++static inline void list_del_init(struct list_head *entry) ++{ ++ __list_del(entry->prev, entry->next); ++ INIT_LIST_HEAD(entry); ++} ++ ++/** ++ * list_move - delete from one list and add as another's head ++ * @list: the entry to move ++ * @head: the head that will precede our entry ++ */ ++static inline void list_move(struct list_head *list, struct list_head *head) ++{ ++ __list_del(list->prev, list->next); ++ list_add(list, head); ++} ++ ++/** ++ * list_move_tail - delete from one list and add as another's tail ++ * @list: the entry to move ++ * @head: the head that will follow our entry ++ */ ++static inline void list_move_tail(struct list_head *list, ++ struct list_head *head) ++{ ++ __list_del(list->prev, list->next); ++ list_add_tail(list, head); ++} ++ ++/** ++ * list_empty - tests whether a list is empty ++ * @head: the list to test. ++ */ ++static inline int list_empty(struct list_head *head) ++{ ++ return head->next == head; ++} ++ ++static inline void __list_splice(struct list_head *list, ++ struct list_head *head) ++{ ++ struct list_head *first = list->next; ++ struct list_head *last = list->prev; ++ struct list_head *at = head->next; ++ ++ first->prev = head; ++ head->next = first; ++ ++ last->next = at; ++ at->prev = last; ++} ++ ++/** ++ * list_splice - join two lists ++ * @list: the new list to add. ++ * @head: the place to add it in the first list. ++ */ ++static inline void list_splice(struct list_head *list, struct list_head *head) ++{ ++ if (!list_empty(list)) ++ __list_splice(list, head); ++} ++ ++/** ++ * list_splice_init - join two lists and reinitialise the emptied list. ++ * @list: the new list to add. ++ * @head: the place to add it in the first list. ++ * ++ * The list at @list is reinitialised ++ */ ++static inline void list_splice_init(struct list_head *list, ++ struct list_head *head) ++{ ++ if (!list_empty(list)) { ++ __list_splice(list, head); ++ INIT_LIST_HEAD(list); ++ } ++} ++ ++/** ++ * list_entry - get the struct for this entry ++ * @ptr: the &struct list_head pointer. ++ * @type: the type of the struct this is embedded in. ++ * @member: the name of the list_struct within the struct. ++ */ ++#define list_entry(ptr, type, member) \ ++ container_of(ptr, type, member) ++ ++/** ++ * list_for_each - iterate over a list ++ * @pos: the &struct list_head to use as a loop counter. ++ * @head: the head for your list. ++ */ ++#define list_for_each(pos, head) \ ++ for (pos = (head)->next; pos != (head); pos = pos->next) ++ ++/** ++ * list_for_each_prev - iterate over a list backwards ++ * @pos: the &struct list_head to use as a loop counter. ++ * @head: the head for your list. ++ */ ++#define list_for_each_prev(pos, head) \ ++ for (pos = (head)->prev; pos != (head); pos = pos->prev) ++ ++/** ++ * list_for_each_safe - iterate over a list safe against removal of list entry ++ * @pos: the &struct list_head to use as a loop counter. ++ * @n: another &struct list_head to use as temporary storage ++ * @head: the head for your list. ++ */ ++#define list_for_each_safe(pos, n, head) \ ++ for (pos = (head)->next, n = pos->next; pos != (head); \ ++ pos = n, n = pos->next) ++ ++/** ++ * list_for_each_entry - iterate over list of given type ++ * @pos: the type * to use as a loop counter. ++ * @head: the head for your list. ++ * @member: the name of the list_struct within the struct. ++ */ ++#define list_for_each_entry(pos, head, member) \ ++ for (pos = list_entry((head)->next, typeof(*pos), member); \ ++ &pos->member != (head); \ ++ pos = list_entry(pos->member.next, typeof(*pos), member)) ++ ++#endif +Index: klibc-1.5/usr/utils/modprobe.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ klibc-1.5/usr/utils/modprobe.c 2008-03-08 03:05:51.847688952 +0100 +@@ -0,0 +1,1710 @@ ++/* modprobe.c: insert a module into the kernel, intelligently. ++ Copyright (C) 2001 Rusty Russell. ++ Copyright (C) 2002, 2003 Rusty Russell, IBM Corporation. ++ ++ 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 ++*/ ++#define _GNU_SOURCE /* asprintf */ ++ ++#include <sys/utsname.h> ++#include <sys/types.h> ++#include <sys/stat.h> ++#include <sys/mman.h> ++#include <fcntl.h> ++#include <stdarg.h> ++#include <stdio.h> ++#include <stdlib.h> ++#include <ctype.h> ++#include <string.h> ++#include <errno.h> ++#include <unistd.h> ++#include <dirent.h> ++#include <limits.h> ++#include <elf.h> ++#include <getopt.h> ++#include <fnmatch.h> ++#include <asm/unistd.h> ++#include <sys/wait.h> ++#include <syslog.h> ++#include <zlib.h> ++ ++#define streq(a,b) (strcmp((a),(b)) == 0) ++#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) ++ ++#include "list.h" ++static inline void try_old_version(const char *progname, char *argv[]) ++{ ++} ++extern long init_module(void *, unsigned long, const char *); ++extern long delete_module(const char *, unsigned int); ++ ++struct module { ++ struct list_head list; ++ char *modname; ++ char filename[0]; ++}; ++ ++#ifndef MODULE_DIR ++#define MODULE_DIR "/lib/modules" ++#endif ++ ++typedef void (*errfn_t)(const char *fmt, ...); ++ ++/* Do we use syslog or stderr for messages? */ ++static int log; ++ ++static void message(const char *prefix, const char *fmt, va_list *arglist) ++{ ++ char *buf, *buf2; ++ ++ vasprintf(&buf, fmt, *arglist); ++ asprintf(&buf2, "%s%s", prefix, buf); ++ ++ if (log) ++ syslog(LOG_NOTICE, "%s", buf2); ++ else ++ fprintf(stderr, "%s", buf2); ++ free(buf2); ++ free(buf); ++} ++void *grab_contents(gzFile *gzfd, unsigned long *size) ++{ ++ unsigned int max = 16384; ++ void *buffer = malloc(max); ++ int ret; ++ ++ if (!buffer) ++ return NULL; ++ ++ *size = 0; ++ while ((ret = gzread(gzfd, buffer + *size, max - *size)) > 0) { ++ *size += ret; ++ if (*size == max) { ++ buffer = realloc(buffer, max *= 2); ++ if (!buffer) ++ return NULL; ++ } ++ } ++ if (ret < 0) { ++ free(buffer); ++ buffer = NULL; ++ } ++ return buffer; ++} ++ ++void *grab_fd(int fd, unsigned long *size) ++{ ++ gzFile gzfd; ++ ++ gzfd = gzdopen(fd, "rb"); ++ if (!gzfd) ++ return NULL; ++ ++ /* gzclose(gzfd) would close fd, which would drop locks. ++ Don't blame zlib: POSIX locking semantics are so horribly ++ broken that they should be ripped out. */ ++ return grab_contents(gzfd, size); ++} ++void release_file(void *data, unsigned long size) ++{ ++ free(data); ++} ++ ++ ++static int warned = 0; ++static void warn(const char *fmt, ...) ++{ ++ va_list arglist; ++ warned++; ++ va_start(arglist, fmt); ++ message("WARNING: ", fmt, &arglist); ++ va_end(arglist); ++} ++ ++static void fatal(const char *fmt, ...) ++{ ++ va_list arglist; ++ va_start(arglist, fmt); ++ message("FATAL: ", fmt, &arglist); ++ va_end(arglist); ++ exit(1); ++} ++ ++ ++static void grammar(const char *cmd, const char *filename, unsigned int line) ++{ ++ warn("%s line %u: ignoring bad line starting with '%s'\n", ++ filename, line, cmd); ++} ++ ++static void *do_nofail(void *ptr, const char *file, int line, const char *expr) ++{ ++ if (!ptr) { ++ fatal("Memory allocation failure %s line %d: %s.\n", ++ file, line, expr); ++ } ++ return ptr; ++} ++ ++#define NOFAIL(ptr) do_nofail((ptr), __FILE__, __LINE__, #ptr) ++ ++static void print_usage(const char *progname) ++{ ++ fprintf(stderr, ++ "Usage: %s [-v] [-V] [-C config-file] [-n] [-i] [-q] [-b] [-o <modname>] <modname> [parameters...]\n" ++ "%s -r [-n] [-i] [-v] <modulename> ...\n" ++ "%s -l -t <dirname> [ -a <modulename> ...]\n", ++ progname, progname, progname); ++ exit(1); ++} ++ ++static int fgetc_wrapped(FILE *file, unsigned int *linenum) ++{ ++ for (;;) { ++ int ch = fgetc(file); ++ if (ch != '\\') ++ return ch; ++ ch = fgetc(file); ++ if (ch != '\n') ++ return ch; ++ if (linenum) ++ (*linenum)++; ++ } ++} ++ ++static char *getline_wrapped(FILE *file, unsigned int *linenum) ++{ ++ int size = 1024; ++ int i = 0; ++ char *buf = NOFAIL(malloc(size)); ++ for(;;) { ++ int ch = fgetc_wrapped(file, linenum); ++ if (i == size) { ++ size *= 2; ++ buf = NOFAIL(realloc(buf, size)); ++ } ++ if (ch < 0 && i == 0) { ++ free(buf); ++ return NULL; ++ } ++ if (ch < 0 || ch == '\n') { ++ if (linenum) ++ (*linenum)++; ++ buf[i] = '\0'; ++ return NOFAIL(realloc(buf, i+1)); ++ } ++ buf[i++] = ch; ++ } ++} ++ ++static struct module *find_module(const char *filename, struct list_head *list) ++{ ++ struct module *i; ++ ++ list_for_each_entry(i, list, list) { ++ if (strcmp(i->filename, filename) == 0) ++ return i; ++ } ++ return NULL; ++} ++ ++/* Convert filename to the module name. Works if filename == modname, too. */ ++static void filename2modname(char *modname, const char *filename) ++{ ++ const char *afterslash; ++ unsigned int i; ++ ++ afterslash = strrchr(filename, '/'); ++ if (!afterslash) ++ afterslash = filename; ++ else ++ afterslash++; ++ ++ /* Convert to underscores, stop at first . */ ++ for (i = 0; afterslash[i] && afterslash[i] != '.'; i++) { ++ if (afterslash[i] == '-') ++ modname[i] = '_'; ++ else ++ modname[i] = afterslash[i]; ++ } ++ modname[i] = '\0'; ++} ++ ++static int lock_file(const char *filename) ++{ ++ int fd = open(filename, O_RDWR, 0); ++ ++ if (fd >= 0) { ++ struct flock lock; ++ lock.l_type = F_WRLCK; ++ lock.l_whence = SEEK_SET; ++ lock.l_start = 0; ++ lock.l_len = 1; ++ fcntl(fd, F_SETLKW, &lock); ++ } else ++ /* Read-only filesystem? There goes locking... */ ++ fd = open(filename, O_RDONLY, 0); ++ return fd; ++} ++ ++static void unlock_file(int fd) ++{ ++ /* Valgrind is picky... */ ++ close(fd); ++} ++ ++static void add_module(char *filename, int namelen, struct list_head *list) ++{ ++ struct module *mod; ++ ++ /* If it's a duplicate: move it to the end, so it gets ++ inserted where it is *first* required. */ ++ mod = find_module(filename, list); ++ if (mod) ++ list_del(&mod->list); ++ else { ++ /* No match. Create a new module. */ ++ mod = NOFAIL(malloc(sizeof(struct module) + namelen + 1)); ++ memcpy(mod->filename, filename, namelen); ++ mod->filename[namelen] = '\0'; ++ mod->modname = NOFAIL(malloc(namelen + 1)); ++ filename2modname(mod->modname, mod->filename); ++ } ++ ++ list_add_tail(&mod->list, list); ++} ++ ++/* Compare len chars of a to b, with _ and - equivalent. */ ++static int modname_equal(const char *a, const char *b, unsigned int len) ++{ ++ unsigned int i; ++ ++ if (strlen(b) != len) ++ return 0; ++ ++ for (i = 0; i < len; i++) { ++ if ((a[i] == '_' || a[i] == '-') ++ && (b[i] == '_' || b[i] == '-')) ++ continue; ++ if (a[i] != b[i]) ++ return 0; ++ } ++ return 1; ++} ++ ++/* Fills in list of modules if this is the line we want. */ ++static int add_modules_dep_line(char *line, ++ const char *name, ++ struct list_head *list) ++{ ++ char *ptr; ++ int len; ++ char *modname; ++ ++ /* Ignore lines without : or which start with a # */ ++ ptr = strchr(line, ':'); ++ if (ptr == NULL || line[strspn(line, "\t ")] == '#') ++ return 0; ++ ++ /* Is this the module we are looking for? */ ++ *ptr = '\0'; ++ if (strrchr(line, '/')) ++ modname = strrchr(line, '/') + 1; ++ else ++ modname = line; ++ ++ len = strlen(modname); ++ if (strchr(modname, '.')) ++ len = strchr(modname, '.') - modname; ++ if (!modname_equal(modname, name, len)) ++ return 0; ++ ++ /* Create the list. */ ++ add_module(line, ptr - line, list); ++ ++ ptr++; ++ for(;;) { ++ char *dep_start; ++ ptr += strspn(ptr, " \t"); ++ if (*ptr == '\0') ++ break; ++ dep_start = ptr; ++ ptr += strcspn(ptr, " \t"); ++ add_module(dep_start, ptr - dep_start, list); ++ } ++ return 1; ++} ++ ++static void read_depends(const char *dirname, ++ const char *start_name, ++ struct list_head *list) ++{ ++ char *modules_dep_name; ++ char *line; ++ FILE *modules_dep; ++ int done = 0; ++ ++ asprintf(&modules_dep_name, "%s/%s", dirname, "modules.dep"); ++ modules_dep = fopen(modules_dep_name, "r"); ++ if (!modules_dep) ++ fatal("Could not load %s: %s\n", ++ modules_dep_name, strerror(errno)); ++ ++ /* Stop at first line, as we can have duplicates (eg. symlinks ++ from boot/ */ ++ while (!done && (line = getline_wrapped(modules_dep, NULL)) != NULL) { ++ done = add_modules_dep_line(line, start_name, list); ++ free(line); ++ } ++ fclose(modules_dep); ++ free(modules_dep_name); ++} ++ ++/* We use error numbers in a loose translation... */ ++static const char *insert_moderror(int err) ++{ ++ switch (err) { ++ case ENOEXEC: ++ return "Invalid module format"; ++ case ENOENT: ++ return "Unknown symbol in module, or unknown parameter (see dmesg)"; ++ case ENOSYS: ++ return "Kernel does not have module support"; ++ default: ++ return strerror(err); ++ } ++} ++ ++static const char *remove_moderror(int err) ++{ ++ switch (err) { ++ case ENOENT: ++ return "No such module"; ++ case ENOSYS: ++ return "Kernel does not have module unloading support"; ++ default: ++ return strerror(err); ++ } ++} ++ ++/* Is module in /proc/modules? If so, fill in usecount if not NULL. ++ 0 means no, 1 means yes, -1 means unknown. ++ */ ++static int module_in_kernel(const char *modname, unsigned int *usecount) ++{ ++ FILE *proc_modules; ++ char *line; ++ ++again: ++ /* Might not be mounted yet. Don't fail. */ ++ proc_modules = fopen("/proc/modules", "r"); ++ if (!proc_modules) ++ return -1; ++ ++ while ((line = getline_wrapped(proc_modules, NULL)) != NULL) { ++ char *entry = strtok(line, " \n"); ++ ++ if (entry && streq(entry, modname)) { ++ /* If it exists, usecount is the third entry. */ ++ if (!strtok(NULL, " \n")) ++ goto out; ++ ++ if (!(entry = strtok(NULL, " \n"))) /* usecount */ ++ goto out; ++ else ++ if (usecount) ++ *usecount = atoi(entry); ++ ++ /* Followed by - then status. */ ++ if (strtok(NULL, " \n") ++ && (entry = strtok(NULL, " \n")) != NULL) { ++ /* Locking will fail on ro fs, we might hit ++ * cases where module is in flux. Spin. */ ++ if (streq(entry, "Loading") ++ || streq(entry, "Unloading")) { ++ usleep(100000); ++ free(line); ++ fclose(proc_modules); ++ goto again; ++ } ++ } ++ ++ out: ++ free(line); ++ fclose(proc_modules); ++ return 1; ++ } ++ free(line); ++ } ++ fclose(proc_modules); ++ return 0; ++} ++ ++static void replace_modname(struct module *module, ++ void *mem, unsigned long len, ++ const char *oldname, const char *newname) ++{ ++ char *p; ++ ++ /* 64 - sizeof(unsigned long) - 1 */ ++ if (strlen(newname) > 55) ++ fatal("New name %s is too long\n", newname); ++ ++ /* Find where it is in the module structure. Don't assume layout! */ ++ for (p = mem; p < (char *)mem + len - strlen(oldname); p++) { ++ if (memcmp(p, oldname, strlen(oldname)) == 0) { ++ strcpy(p, newname); ++ return; ++ } ++ } ++ ++ warn("Could not find old name in %s to replace!\n", module->filename); ++} ++ ++static void *get_section32(void *file, ++ unsigned long size, ++ const char *name, ++ unsigned long *secsize) ++{ ++ Elf32_Ehdr *hdr = file; ++ Elf32_Shdr *sechdrs = file + hdr->e_shoff; ++ const char *secnames; ++ unsigned int i; ++ ++ /* Too short? */ ++ if (size < sizeof(*hdr)) ++ return NULL; ++ if (size < hdr->e_shoff + hdr->e_shnum * sizeof(sechdrs[0])) ++ return NULL; ++ if (size < sechdrs[hdr->e_shstrndx].sh_offset) ++ return NULL; ++ ++ secnames = file + sechdrs[hdr->e_shstrndx].sh_offset; ++ for (i = 1; i < hdr->e_shnum; i++) ++ if (strcmp(secnames + sechdrs[i].sh_name, name) == 0) { ++ *secsize = sechdrs[i].sh_size; ++ return file + sechdrs[i].sh_offset; ++ } ++ return NULL; ++} ++ ++static void *get_section64(void *file, ++ unsigned long size, ++ const char *name, ++ unsigned long *secsize) ++{ ++ Elf64_Ehdr *hdr = file; ++ Elf64_Shdr *sechdrs = file + hdr->e_shoff; ++ const char *secnames; ++ unsigned int i; ++ ++ /* Too short? */ ++ if (size < sizeof(*hdr)) ++ return NULL; ++ if (size < hdr->e_shoff + hdr->e_shnum * sizeof(sechdrs[0])) ++ return NULL; ++ if (size < sechdrs[hdr->e_shstrndx].sh_offset) ++ return NULL; ++ ++ secnames = file + sechdrs[hdr->e_shstrndx].sh_offset; ++ for (i = 1; i < hdr->e_shnum; i++) ++ if (strcmp(secnames + sechdrs[i].sh_name, name) == 0) { ++ *secsize = sechdrs[i].sh_size; ++ return file + sechdrs[i].sh_offset; ++ } ++ return NULL; ++} ++ ++static int elf_ident(void *mod, unsigned long size) ++{ ++ /* "\177ELF" <byte> where byte = 001 for 32-bit, 002 for 64 */ ++ char *ident = mod; ++ ++ if (size < EI_CLASS || memcmp(mod, ELFMAG, SELFMAG) != 0) ++ return ELFCLASSNONE; ++ return ident[EI_CLASS]; ++} ++ ++static void *get_section(void *file, ++ unsigned long size, ++ const char *name, ++ unsigned long *secsize) ++{ ++ switch (elf_ident(file, size)) { ++ case ELFCLASS32: ++ return get_section32(file, size, name, secsize); ++ case ELFCLASS64: ++ return get_section64(file, size, name, secsize); ++ default: ++ return NULL; ++ } ++} ++ ++static void rename_module(struct module *module, ++ void *mod, ++ unsigned long len, ++ const char *newname) ++{ ++ void *modstruct; ++ unsigned long modstruct_len; ++ ++ /* Old-style */ ++ modstruct = get_section(mod, len, ".gnu.linkonce.this_module", ++ &modstruct_len); ++ /* New-style */ ++ if (!modstruct) ++ modstruct = get_section(mod, len, "__module", &modstruct_len); ++ if (!modstruct) ++ warn("Could not find module name to change in %s\n", ++ module->filename); ++ else ++ replace_modname(module, modstruct, modstruct_len, ++ module->modname, newname); ++} ++ ++/* Kernel told to ignore these sections if SHF_ALLOC not set. */ ++static void invalidate_section32(void *mod, const char *secname) ++{ ++ Elf32_Ehdr *hdr = mod; ++ Elf32_Shdr *sechdrs = mod + hdr->e_shoff; ++ const char *secnames = mod + sechdrs[hdr->e_shstrndx].sh_offset; ++ unsigned int i; ++ ++ for (i = 1; i < hdr->e_shnum; i++) ++ if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) ++ sechdrs[i].sh_flags &= ~SHF_ALLOC; ++} ++ ++static void invalidate_section64(void *mod, const char *secname) ++{ ++ Elf64_Ehdr *hdr = mod; ++ Elf64_Shdr *sechdrs = mod + hdr->e_shoff; ++ const char *secnames = mod + sechdrs[hdr->e_shstrndx].sh_offset; ++ unsigned int i; ++ ++ for (i = 1; i < hdr->e_shnum; i++) ++ if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) ++ sechdrs[i].sh_flags &= ~(unsigned long long)SHF_ALLOC; ++} ++ ++static void strip_section(struct module *module, ++ void *mod, ++ unsigned long len, ++ const char *secname) ++{ ++ switch (elf_ident(mod, len)) { ++ case ELFCLASS32: ++ invalidate_section32(mod, secname); ++ break; ++ case ELFCLASS64: ++ invalidate_section64(mod, secname); ++ break; ++ default: ++ warn("Unknown module format in %s: not forcing version\n", ++ module->filename); ++ } ++} ++ ++static const char *next_string(const char *string, unsigned long *secsize) ++{ ++ /* Skip non-zero chars */ ++ while (string[0]) { ++ string++; ++ if ((*secsize)-- <= 1) ++ return NULL; ++ } ++ ++ /* Skip any zero padding. */ ++ while (!string[0]) { ++ string++; ++ if ((*secsize)-- <= 1) ++ return NULL; ++ } ++ return string; ++} ++ ++static void clear_magic(struct module *module, void *mod, unsigned long len) ++{ ++ const char *p; ++ unsigned long modlen; ++ ++ /* Old-style: __vermagic section */ ++ strip_section(module, mod, len, "__vermagic"); ++ ++ /* New-style: in .modinfo section */ ++ for (p = get_section(mod, len, ".modinfo", &modlen); ++ p; ++ p = next_string(p, &modlen)) { ++ if (strncmp(p, "vermagic=", strlen("vermagic=")) == 0) { ++ memset((char *)p, 0, strlen(p)); ++ return; ++ } ++ } ++} ++ ++struct module_options ++{ ++ struct module_options *next; ++ char *modulename; ++ char *options; ++}; ++ ++struct module_command ++{ ++ struct module_command *next; ++ char *modulename; ++ char *command; ++}; ++ ++struct module_alias ++{ ++ struct module_alias *next; ++ char *module; ++}; ++ ++struct module_blacklist ++{ ++ struct module_blacklist *next; ++ char *modulename; ++}; ++ ++/* Link in a new option line from the config file. */ ++static struct module_options * ++add_options(const char *modname, ++ const char *option, ++ struct module_options *options) ++{ ++ struct module_options *new; ++ char *tab; ++ ++ new = NOFAIL(malloc(sizeof(*new))); ++ new->modulename = NOFAIL(strdup(modname)); ++ new->options = NOFAIL(strdup(option)); ++ /* We can handle tabs, kernel can't. */ ++ for (tab = strchr(new->options, '\t'); tab; tab = strchr(tab, '\t')) ++ *tab = ' '; ++ new->next = options; ++ return new; ++} ++ ++/* Link in a new install line from the config file. */ ++static struct module_command * ++add_command(const char *modname, ++ const char *command, ++ struct module_command *commands) ++{ ++ struct module_command *new; ++ ++ new = NOFAIL(malloc(sizeof(*new))); ++ new->modulename = NOFAIL(strdup(modname)); ++ new->command = NOFAIL(strdup(command)); ++ new->next = commands; ++ return new; ++} ++ ++/* Link in a new alias line from the config file. */ ++static struct module_alias * ++add_alias(const char *modname, struct module_alias *aliases) ++{ ++ struct module_alias *new; ++ ++ new = NOFAIL(malloc(sizeof(*new))); ++ new->module = NOFAIL(strdup(modname)); ++ new->next = aliases; ++ return new; ++} ++ ++/* Link in a new blacklist line from the config file. */ ++static struct module_blacklist * ++add_blacklist(const char *modname, struct module_blacklist *blacklist) ++{ ++ struct module_blacklist *new; ++ ++ new = NOFAIL(malloc(sizeof(*new))); ++ new->modulename = NOFAIL(strdup(modname)); ++ new->next = blacklist; ++ return new; ++} ++ ++/* Find blacklist commands if any. */ ++static int ++find_blacklist(const char *modname, const struct module_blacklist *blacklist) ++{ ++ while (blacklist) { ++ if (strcmp(blacklist->modulename, modname) == 0) ++ return 1; ++ blacklist = blacklist->next; ++ } ++ return 0; ++} ++ ++/* return a new alias list, with backlisted elems filtered out */ ++static struct module_alias * ++apply_blacklist(const struct module_alias *aliases, ++ const struct module_blacklist *blacklist) ++{ ++ struct module_alias *result = NULL; ++ while (aliases) { ++ char *modname = aliases->module; ++ if (!find_blacklist(modname, blacklist)) ++ result = add_alias(modname, result); ++ aliases = aliases->next; ++ } ++ return result; ++} ++ ++/* Find install commands if any. */ ++static const char *find_command(const char *modname, ++ const struct module_command *commands) ++{ ++ while (commands) { ++ if (fnmatch(commands->modulename, modname, 0) == 0) ++ return commands->command; ++ commands = commands->next; ++ } ++ return NULL; ++} ++ ++static char *append_option(char *options, const char *newoption) ++{ ++ options = NOFAIL(realloc(options, strlen(options) + 1 ++ + strlen(newoption) + 1)); ++ if (strlen(options)) strcat(options, " "); ++ strcat(options, newoption); ++ return options; ++} ++ ++/* Add to options */ ++static char *add_extra_options(const char *modname, ++ char *optstring, ++ const struct module_options *options) ++{ ++ while (options) { ++ if (strcmp(options->modulename, modname) == 0) ++ optstring = append_option(optstring, options->options); ++ options = options->next; ++ } ++ return optstring; ++} ++ ++/* If we don't flush, then child processes print before we do */ ++static void verbose_printf(int verbose, const char *fmt, ...) ++{ ++ va_list arglist; ++ ++ if (verbose) { ++ va_start(arglist, fmt); ++ vprintf(fmt, arglist); ++ fflush(stdout); ++ va_end(arglist); ++ } ++} ++ ++/* Do an install/remove command: replace $CMDLINE_OPTS if it's specified. */ ++static void do_command(const char *modname, ++ const char *command, ++ int verbose, int dry_run, ++ errfn_t error, ++ const char *type, ++ const char *cmdline_opts) ++{ ++ int ret; ++ char *p, *replaced_cmd = NOFAIL(strdup(command)); ++ ++ while ((p = strstr(replaced_cmd, "$CMDLINE_OPTS")) != NULL) { ++ char *new; ++ asprintf(&new, "%.*s%s%s", ++ p - replaced_cmd, replaced_cmd, cmdline_opts, ++ p + strlen("$CMDLINE_OPTS")); ++ NOFAIL(new); ++ free(replaced_cmd); ++ replaced_cmd = new; ++ } ++ ++ verbose_printf(verbose, "%s %s\n", type, replaced_cmd); ++ if (dry_run) ++ return; ++ ++ setenv("MODPROBE_MODULE", modname, 1); ++ ret = system(replaced_cmd); ++ if (ret == -1 || WEXITSTATUS(ret)) ++ error("Error running %s command for %s\n", type, modname); ++ free(replaced_cmd); ++} ++ ++/* Actually do the insert. Frees second arg. */ ++static void insmod(struct list_head *list, ++ char *optstring, ++ const char *newname, ++ int first_time, ++ errfn_t error, ++ int dry_run, ++ int verbose, ++ const struct module_options *options, ++ const struct module_command *commands, ++ int ignore_commands, ++ int ignore_proc, ++ int strip_vermagic, ++ int strip_modversion, ++ const char *cmdline_opts) ++{ ++ int ret, fd; ++ unsigned long len; ++ void *map; ++ const char *command; ++ struct module *mod = list_entry(list->next, struct module, list); ++ ++ /* Take us off the list. */ ++ list_del(&mod->list); ++ ++ /* Do things we (or parent) depend on first, but don't die if ++ * they fail. */ ++ if (!list_empty(list)) { ++ insmod(list, NOFAIL(strdup("")), NULL, 0, warn, ++ dry_run, verbose, options, commands, 0, ignore_proc, ++ strip_vermagic, strip_modversion, cmdline_opts); ++ } ++ ++ /* Lock before we look, in case it's initializing. */ ++ fd = lock_file(mod->filename); ++ if (fd < 0) { ++ error("Could not open '%s': %s\n", ++ mod->filename, strerror(errno)); ++ goto out_optstring; ++ } ++ ++ /* Don't do ANYTHING if already in kernel. */ ++ if (!ignore_proc ++ && module_in_kernel(newname ?: mod->modname, NULL) == 1) { ++ if (first_time) ++ error("Module %s already in kernel.\n", ++ newname ?: mod->modname); ++ goto out_unlock; ++ } ++ ++ command = find_command(mod->modname, commands); ++ if (command && !ignore_commands) { ++ /* It might recurse: unlock. */ ++ unlock_file(fd); ++ do_command(mod->modname, command, verbose, dry_run, error, ++ "install", cmdline_opts); ++ goto out_optstring; ++ } ++ ++ map = grab_fd(fd, &len); ++ if (!map) { ++ error("Could not read '%s': %s\n", ++ mod->filename, strerror(errno)); ++ goto out_unlock; ++ } ++ ++ /* Rename it? */ ++ if (newname) ++ rename_module(mod, map, len, newname); ++ ++ if (strip_modversion) ++ strip_section(mod, map, len, "__versions"); ++ if (strip_vermagic) ++ clear_magic(mod, map, len); ++ ++ /* Config file might have given more options */ ++ optstring = add_extra_options(mod->modname, optstring, options); ++ ++ verbose_printf(verbose, "insmod %s %s\n", mod->filename, optstring); ++ ++ if (dry_run) ++ goto out; ++ ++ ret = init_module(map, len, optstring); ++ if (ret != 0) { ++ if (errno == EEXIST) { ++ if (first_time) ++ error("Module %s already in kernel.\n", ++ newname ?: mod->modname); ++ goto out_unlock; ++ } ++ error("Error inserting %s (%s): %s\n", ++ mod->modname, mod->filename, insert_moderror(errno)); ++ } ++ out: ++ release_file(map, len); ++ out_unlock: ++ unlock_file(fd); ++ out_optstring: ++ free(optstring); ++ return; ++} ++ ++/* Do recursive removal. */ ++static void rmmod(struct list_head *list, ++ const char *name, ++ int first_time, ++ errfn_t error, ++ int dry_run, ++ int verbose, ++ struct module_command *commands, ++ int ignore_commands, ++ int ignore_inuse, ++ const char *cmdline_opts) ++{ ++ const char *command; ++ unsigned int usecount = 0; ++ int lock; ++ struct module *mod = list_entry(list->next, struct module, list); ++ ++ /* Take first one off the list. */ ++ list_del(&mod->list); ++ ++ /* Ignore failure; it's best effort here. */ ++ lock = lock_file(mod->filename); ++ ++ if (!name) ++ name = mod->modname; ++ ++ /* Even if renamed, find commands to orig. name. */ ++ command = find_command(mod->modname, commands); ++ if (command && !ignore_commands) { ++ /* It might recurse: unlock. */ ++ unlock_file(lock); ++ do_command(mod->modname, command, verbose, dry_run, error, ++ "remove", cmdline_opts); ++ goto remove_rest_no_unlock; ++ } ++ ++ if (module_in_kernel(name, &usecount) == 0) ++ goto nonexistent_module; ++ ++ if (usecount != 0) { ++ if (!ignore_inuse) ++ error("Module %s is in use.\n", name); ++ goto remove_rest; ++ } ++ ++ verbose_printf(verbose, "rmmod %s\n", mod->filename); ++ ++ if (dry_run) ++ goto remove_rest; ++ ++ if (delete_module(name, O_EXCL) != 0) { ++ if (errno == ENOENT) ++ goto nonexistent_module; ++ error("Error removing %s (%s): %s\n", ++ name, mod->filename, ++ remove_moderror(errno)); ++ } ++ ++ remove_rest: ++ unlock_file(lock); ++ remove_rest_no_unlock: ++ /* Now do things we depend. */ ++ if (!list_empty(list)) ++ rmmod(list, NULL, 0, warn, dry_run, verbose, commands, ++ 0, 1, cmdline_opts); ++ return; ++ ++nonexistent_module: ++ if (first_time) ++ fatal("Module %s is not in kernel.\n", mod->modname); ++ goto remove_rest; ++} ++ ++/* Does path contain directory(s) subpath? */ ++static int type_matches(const char *path, const char *subpath) ++{ ++ char *subpath_with_slashes; ++ int ret; ++ ++ asprintf(&subpath_with_slashes, "/%s/", subpath); ++ NOFAIL(subpath_with_slashes); ++ ++ ret = (strstr(path, subpath_with_slashes) != NULL); ++ free(subpath_with_slashes); ++ return ret; ++} ++ ++static char *underscores(char *string) ++{ ++ if (string) { ++ unsigned int i; ++ for (i = 0; string[i]; i++) ++ if (string[i] == '-') ++ string[i] = '_'; ++ } ++ return string; ++} ++ ++static int do_wildcard(const char *dirname, ++ const char *type, ++ const char *wildcard) ++{ ++ char modules_dep_name[strlen(dirname) + sizeof("modules.dep") + 1]; ++ char *line, *wcard; ++ FILE *modules_dep; ++ ++ /* Canonicalize wildcard */ ++ wcard = strdup(wildcard); ++ underscores(wcard); ++ ++ sprintf(modules_dep_name, "%s/%s", dirname, "modules.dep"); ++ modules_dep = fopen(modules_dep_name, "r"); ++ if (!modules_dep) ++ fatal("Could not load %s: %s\n", ++ modules_dep_name, strerror(errno)); ++ ++ while ((line = getline_wrapped(modules_dep, NULL)) != NULL) { ++ char *ptr; ++ ++ /* Ignore lines without : or which start with a # */ ++ ptr = strchr(line, ':'); ++ if (ptr == NULL || line[strspn(line, "\t ")] == '#') ++ goto next; ++ *ptr = '\0'; ++ ++ /* "type" must match complete directory component(s). */ ++ if (!type || type_matches(line, type)) { ++ char modname[strlen(line)+1]; ++ ++ filename2modname(modname, line); ++ if (fnmatch(wcard, modname, 0) == 0) ++ printf("%s\n", line); ++ } ++ next: ++ free(line); ++ } ++ ++ free(wcard); ++ return 0; ++} ++ ++static char *strsep_skipspace(char **string, char *delim) ++{ ++ if (!*string) ++ return NULL; ++ *string += strspn(*string, delim); ++ return strsep(string, delim); ++} ++ ++/* Recursion */ ++static int read_config(const char *filename, ++ const char *name, ++ int dump_only, ++ int removing, ++ struct module_options **options, ++ struct module_command **commands, ++ struct module_alias **alias, ++ struct module_blacklist **blacklist); ++ ++/* FIXME: Maybe should be extended to "alias a b [and|or c]...". --RR */ ++static int read_config_file(const char *filename, ++ const char *name, ++ int dump_only, ++ int removing, ++ struct module_options **options, ++ struct module_command **commands, ++ struct module_alias **aliases, ++ struct module_blacklist **blacklist) ++{ ++ char *line; ++ unsigned int linenum = 0; ++ FILE *cfile; ++ ++ cfile = fopen(filename, "r"); ++ if (!cfile) ++ return 0; ++ ++ while ((line = getline_wrapped(cfile, &linenum)) != NULL) { ++ char *ptr = line; ++ char *cmd, *modname; ++ ++ if (dump_only) ++ printf("%s\n", line); ++ ++ cmd = strsep_skipspace(&ptr, "\t "); ++ if (cmd == NULL || cmd[0] == '#' || cmd[0] == '\0') ++ continue; ++ ++ if (strcmp(cmd, "alias") == 0) { ++ char *wildcard ++ = underscores(strsep_skipspace(&ptr, "\t ")); ++ char *realname ++ = underscores(strsep_skipspace(&ptr, "\t ")); ++ ++ if (!wildcard || !realname) ++ grammar(cmd, filename, linenum); ++ else if (fnmatch(wildcard,name,0) == 0) ++ *aliases = add_alias(realname, *aliases); ++ } else if (strcmp(cmd, "include") == 0) { ++ struct module_alias *newalias = NULL; ++ char *newfilename; ++ ++ newfilename = strsep_skipspace(&ptr, "\t "); ++ if (!newfilename) ++ grammar(cmd, filename, linenum); ++ else { ++ if (!read_config(newfilename, name, ++ dump_only, removing, ++ options, commands, &newalias, ++ blacklist)) ++ warn("Failed to open included" ++ " config file %s: %s\n", ++ newfilename, strerror(errno)); ++ ++ /* Files included override aliases, ++ etc that was already set ... */ ++ if (newalias) ++ *aliases = newalias; ++ } ++ } else if (strcmp(cmd, "options") == 0) { ++ modname = strsep_skipspace(&ptr, "\t "); ++ if (!modname || !ptr) ++ grammar(cmd, filename, linenum); ++ else { ++ ptr += strspn(ptr, "\t "); ++ *options = add_options(underscores(modname), ++ ptr, *options); ++ } ++ } else if (strcmp(cmd, "install") == 0) { ++ modname = strsep_skipspace(&ptr, "\t "); ++ if (!modname || !ptr) ++ grammar(cmd, filename, linenum); ++ else if (!removing) { ++ ptr += strspn(ptr, "\t "); ++ *commands = add_command(underscores(modname), ++ ptr, *commands); ++ } ++ } else if (strcmp(cmd, "blacklist") == 0) { ++ modname = strsep_skipspace(&ptr, "\t "); ++ if (!modname) ++ grammar(cmd, filename, linenum); ++ else if (!removing) { ++ *blacklist = add_blacklist(underscores(modname), ++ *blacklist); ++ } ++ } else if (strcmp(cmd, "remove") == 0) { ++ modname = strsep_skipspace(&ptr, "\t "); ++ if (!modname || !ptr) ++ grammar(cmd, filename, linenum); ++ else if (removing) { ++ ptr += strspn(ptr, "\t "); ++ *commands = add_command(underscores(modname), ++ ptr, *commands); ++ } ++ } else ++ grammar(cmd, filename, linenum); ++ ++ free(line); ++ } ++ fclose(cfile); ++ return 1; ++} ++ ++/* Simple format, ignore lines starting with #, one command per line. ++ Returns true or false. */ ++static int read_config(const char *filename, ++ const char *name, ++ int dump_only, ++ int removing, ++ struct module_options **options, ++ struct module_command **commands, ++ struct module_alias **aliases, ++ struct module_blacklist **blacklist) ++{ ++ DIR *dir; ++ int ret = 0; ++ ++ /* ignore everything in this directory */ ++ if (streq(filename, "/etc/modprobe.d/arch")) ++ return 1; ++ ++ /* Reiser4 has file/directory duality: treat it as both. */ ++ dir = opendir(filename); ++ if (dir) { ++ struct dirent *i; ++ while ((i = readdir(dir)) != NULL) { ++ if (!streq(i->d_name,".") && !streq(i->d_name,"..")) { ++ char sub[strlen(filename) + 1 ++ + strlen(i->d_name) + 1]; ++ ++ sprintf(sub, "%s/%s", filename, i->d_name); ++ if (!read_config(sub, name, ++ dump_only, removing, options, ++ commands, aliases, blacklist)) ++ warn("Failed to open" ++ " config file %s: %s\n", ++ sub, strerror(errno)); ++ } ++ } ++ closedir(dir); ++ ret = 1; ++ } ++ ++ if (read_config_file(filename, name, dump_only, removing, ++ options, commands, aliases, blacklist)) ++ ret = 1; ++ ++ return ret; ++} ++ ++static const char *default_configs[] = ++{ ++ "/etc/modprobe.conf", ++ "/etc/modprobe.d", ++}; ++ ++static void read_toplevel_config(const char *filename, ++ const char *name, ++ int dump_only, ++ int removing, ++ struct module_options **options, ++ struct module_command **commands, ++ struct module_alias **aliases, ++ struct module_blacklist **blacklist) ++{ ++ unsigned int i; ++ ++ if (filename) { ++ if (!read_config(filename, name, dump_only, removing, ++ options, commands, aliases, blacklist)) ++ fatal("Failed to open config file %s: %s\n", ++ filename, strerror(errno)); ++ return; ++ } ++ ++ /* Try defaults. */ ++ for (i = 0; i < ARRAY_SIZE(default_configs); i++) { ++ if (read_config(default_configs[i], name, dump_only, removing, ++ options, commands, aliases, blacklist)) ++ return; ++ } ++} ++ ++static void add_to_env_var(const char *option) ++{ ++ const char *oldenv; ++ ++ if ((oldenv = getenv("MODPROBE_OPTIONS")) != NULL) { ++ char *newenv; ++ asprintf(&newenv, "%s %s", oldenv, option); ++ setenv("MODPROBE_OPTIONS", newenv, 1); ++ } else ++ setenv("MODPROBE_OPTIONS", option, 1); ++} ++ ++/* Prepend options from environment. */ ++static char **merge_args(char *args, char *argv[], int *argc) ++{ ++ char *arg, *argstring; ++ char **newargs = NULL; ++ unsigned int i, num_env = 0; ++ ++ if (!args) ++ return argv; ++ ++ argstring = NOFAIL(strdup(args)); ++ for (arg = strtok(argstring, " "); arg; arg = strtok(NULL, " ")) { ++ num_env++; ++ newargs = NOFAIL(realloc(newargs, ++ sizeof(newargs[0]) ++ * (num_env + *argc + 1))); ++ newargs[num_env] = arg; ++ } ++ ++ /* Append commandline args */ ++ newargs[0] = argv[0]; ++ for (i = 1; i <= *argc; i++) ++ newargs[num_env+i] = argv[i]; ++ ++ *argc += num_env; ++ return newargs; ++} ++ ++static char *gather_options(char *argv[]) ++{ ++ char *optstring = NOFAIL(strdup("")); ++ ++ /* Rest is module options */ ++ while (*argv) { ++ /* Quote value if it contains spaces. */ ++ unsigned int eq = strcspn(*argv, "="); ++ ++ if (strchr(*argv+eq, ' ') && !strchr(*argv, '"')) { ++ char quoted[strlen(*argv) + 3]; ++ (*argv)[eq] = '\0'; ++ sprintf(quoted, "%s=\"%s\"", *argv, *argv+eq+1); ++ optstring = append_option(optstring, quoted); ++ } else ++ optstring = append_option(optstring, *argv); ++ argv++; ++ } ++ return optstring; ++} ++ ++static void handle_module(const char *modname, ++ struct list_head *todo_list, ++ const char *newname, ++ int remove, ++ char *options, ++ int first_time, ++ errfn_t error, ++ int dry_run, ++ int verbose, ++ struct module_options *modoptions, ++ struct module_command *commands, ++ int ignore_commands, ++ int ignore_proc, ++ int strip_vermagic, ++ int strip_modversion, ++ int unknown_silent, ++ const char *cmdline_opts) ++{ ++ if (list_empty(todo_list)) { ++ const char *command; ++ ++ /* The dependencies have to be real modules, but ++ handle case where the first is completely bogus. */ ++ command = find_command(modname, commands); ++ if (command && !ignore_commands) { ++ do_command(modname, command, verbose, dry_run, error, ++ remove ? "remove":"install", cmdline_opts); ++ return; ++ } ++ ++ if (unknown_silent) ++ exit(1); ++ error("Module %s not found.\n", modname); ++ return; ++ } ++ ++ if (remove) ++ rmmod(todo_list, newname, first_time, error, dry_run, verbose, ++ commands, ignore_commands, 0, cmdline_opts); ++ else ++ insmod(todo_list, NOFAIL(strdup(options)), newname, ++ first_time, error, dry_run, verbose, modoptions, ++ commands, ignore_commands, ignore_proc, strip_vermagic, ++ strip_modversion, cmdline_opts); ++} ++ ++static struct option options[] = { { "verbose", 0, NULL, 'v' }, ++ { "version", 0, NULL, 'V' }, ++ { "config", 1, NULL, 'C' }, ++ { "name", 1, NULL, 'o' }, ++ { "remove", 0, NULL, 'r' }, ++ { "showconfig", 0, NULL, 'c' }, ++ { "autoclean", 0, NULL, 'k' }, ++ { "quiet", 0, NULL, 'q' }, ++ { "show", 0, NULL, 'n' }, ++ { "dry-run", 0, NULL, 'n' }, ++ { "syslog", 0, NULL, 's' }, ++ { "type", 1, NULL, 't' }, ++ { "list", 0, NULL, 'l' }, ++ { "all", 0, NULL, 'a' }, ++ { "ignore-install", 0, NULL, 'i' }, ++ { "ignore-remove", 0, NULL, 'i' }, ++ { "force", 0, NULL, 'f' }, ++ { "force-vermagic", 0, NULL, 1 }, ++ { "force-modversion", 0, NULL, 2 }, ++ { "set-version", 1, NULL, 'S' }, ++ { "show-depends", 0, NULL, 'D' }, ++ { "first-time", 0, NULL, 3 }, ++ { "use-blacklist", 0, NULL, 'b' }, ++ { NULL, 0, NULL, 0 } }; ++ ++#define MODPROBE_DEVFSD_CONF "/etc/modprobe.devfs" ++ ++/* This is a horrible hack to allow devfsd, which calls modprobe with ++ -C /etc/modules.conf or /etc/modules.devfs, to work. FIXME. */ ++/* Modern devfsd or variants should use -q explicitly in 2.6. */ ++static int is_devfs_call(char *argv[]) ++{ ++ unsigned int i; ++ ++ /* Look for "/dev" arg */ ++ for (i = 1; argv[i]; i++) { ++ if (strncmp(argv[i], "/dev/", 5) == 0) ++ return 1; ++ } ++ return 0; ++} ++ ++int main(int argc, char *argv[]) ++{ ++ struct utsname buf; ++ struct stat statbuf; ++ int opt; ++ int dump_only = 0; ++ int dry_run = 0; ++ int remove = 0; ++ int verbose = 0; ++ int unknown_silent = 0; ++ int list_only = 0; ++ int all = 0; ++ int ignore_commands = 0; ++ int strip_vermagic = 0; ++ int strip_modversion = 0; ++ int ignore_proc = 0; ++ int first_time = 0; ++ int use_blacklist = 0; ++ unsigned int i, num_modules; ++ char *type = NULL; ++ const char *config = NULL; ++ char *dirname, *optstring; ++ char *newname = NULL; ++ char *aliasfilename, *symfilename; ++ errfn_t error = fatal; ++ ++ /* Prepend options from environment. */ ++ argv = merge_args(getenv("MODPROBE_OPTIONS"), argv, &argc); ++ ++ /* --set-version overrides version, and disables backwards compat. */ ++ for (opt = 1; opt < argc; opt++) ++ if (strncmp(argv[opt],"--set-version",strlen("--set-version")) ++ == 0) ++ break; ++ ++ if (opt == argc) ++ try_old_version("modprobe", argv); ++ ++ uname(&buf); ++ while ((opt = getopt_long(argc, argv, "vVC:o:rknqQsclt:aifb", options, NULL)) != -1){ ++ switch (opt) { ++ case 'v': ++ add_to_env_var("-v"); ++ verbose = 1; ++ break; ++ case 'V': ++ puts("module-init-tools version 3.2.2"); ++ exit(0); ++ case 'S': ++ strncpy(buf.release, optarg, sizeof(buf.release)); ++ buf.release[sizeof(buf.release)-1] = '\0'; ++ break; ++ case 'C': ++ if (is_devfs_call(argv)) { ++ if (streq("/etc/modules.devfs", optarg)) { ++ config = MODPROBE_DEVFSD_CONF; ++ add_to_env_var("-C"); ++ add_to_env_var(config); ++ /* Fall thru to -q */ ++ } else if (streq("/etc/modules.conf", optarg)) ++ /* Ignore config, fall thru to -q */ ++ ; ++ else { ++ /* False alarm. Treat as normal. */ ++ config = optarg; ++ add_to_env_var("-C"); ++ add_to_env_var(config); ++ break; ++ } ++ } else { ++ config = optarg; ++ add_to_env_var("-C"); ++ add_to_env_var(config); ++ break; ++ } ++ case 'q': ++ unknown_silent = 1; ++ add_to_env_var("-q"); ++ break; ++ case 'D': ++ dry_run = 1; ++ ignore_proc = 1; ++ verbose = 1; ++ add_to_env_var("-D"); ++ break; ++ case 'o': ++ newname = optarg; ++ break; ++ case 'r': ++ remove = 1; ++ break; ++ case 'c': ++ dump_only = 1; ++ break; ++ case 't': ++ type = optarg; ++ break; ++ case 'l': ++ list_only = 1; ++ break; ++ case 'a': ++ all = 1; ++ error = warn; ++ break; ++ case 'k': ++ /* FIXME: This should actually do something */ ++ break; ++ case 'n': ++ dry_run = 1; ++ break; ++ case 's': ++ add_to_env_var("-s"); ++ log = 1; ++ break; ++ case 'i': ++ ignore_commands = 1; ++ break; ++ case 'f': ++ strip_vermagic = 1; ++ strip_modversion = 1; ++ break; ++ case 'b': ++ use_blacklist = 1; ++ break; ++ case 1: ++ strip_vermagic = 1; ++ break; ++ case 2: ++ strip_modversion = 1; ++ break; ++ case 3: ++ first_time = 1; ++ break; ++ default: ++ print_usage(argv[0]); ++ } ++ } ++ ++ /* If stderr not open, go to syslog */ ++ if (log || fstat(STDERR_FILENO, &statbuf) != 0) { ++ openlog("modprobe", LOG_CONS, LOG_DAEMON); ++ log = 1; ++ } ++ ++ if (argc < optind + 1 && !dump_only && !list_only && !remove) ++ print_usage(argv[0]); ++ ++ dirname = NOFAIL(malloc(strlen(buf.release) + sizeof(MODULE_DIR) + 1)); ++ sprintf(dirname, "%s/%s", MODULE_DIR, buf.release); ++ aliasfilename = NOFAIL(malloc(strlen(dirname) ++ + sizeof("/modules.alias"))); ++ sprintf(aliasfilename, "%s/modules.alias", dirname); ++ symfilename = NOFAIL(malloc(strlen(dirname) ++ + sizeof("/modules.symbols"))); ++ sprintf(symfilename, "%s/modules.symbols", dirname); ++ ++ /* Old-style -t xxx wildcard? Only with -l. */ ++ if (list_only) { ++ if (optind+1 < argc) ++ fatal("Can't have multiple wildcards\n"); ++ /* fprintf(stderr, "man find\n"); return 1; */ ++ return do_wildcard(dirname, type, argv[optind]?:"*"); ++ } ++ if (type) ++ fatal("-t only supported with -l"); ++ ++ if (dump_only) { ++ struct module_command *commands = NULL; ++ struct module_options *modoptions = NULL; ++ struct module_alias *aliases = NULL; ++ struct module_blacklist *blacklist = NULL; ++ ++ read_toplevel_config(config, "", 1, 0, ++ &modoptions, &commands, &aliases, &blacklist); ++ read_config(aliasfilename, "", 1, 0,&modoptions, &commands, ++ &aliases, &blacklist); ++ read_config(symfilename, "", 1, 0, &modoptions, &commands, ++ &aliases, &blacklist); ++ exit(0); ++ } ++ ++ if (remove || all) { ++ num_modules = argc - optind; ++ optstring = NOFAIL(strdup("")); ++ } else { ++ num_modules = 1; ++ optstring = gather_options(argv+optind+1); ++ } ++ ++ /* num_modules is always 1 except for -r or -a. */ ++ for (i = 0; i < num_modules; i++) { ++ struct module_command *commands = NULL; ++ struct module_options *modoptions = NULL; ++ struct module_alias *aliases = NULL; ++ struct module_blacklist *blacklist = NULL; ++ LIST_HEAD(list); ++ char *modulearg = argv[optind + i]; ++ ++ /* Convert name we are looking for */ ++ underscores(modulearg); ++ ++ /* Returns the resolved alias, options */ ++ read_toplevel_config(config, modulearg, 0, ++ remove, &modoptions, &commands, &aliases, &blacklist); ++ ++ /* No luck? Try symbol names, if starts with symbol:. */ ++ if (!aliases ++ && strncmp(modulearg, "symbol:", strlen("symbol:")) == 0) ++ read_config(symfilename, modulearg, 0, ++ remove, &modoptions, &commands, ++ &aliases, &blacklist); ++ ++ if (!aliases) { ++ /* We only use canned aliases as last resort. */ ++ read_depends(dirname, modulearg, &list); ++ ++ if (list_empty(&list) ++ && !find_command(modulearg, commands)) ++ { ++ read_config(aliasfilename, modulearg, 0, ++ remove, &modoptions, &commands, ++ &aliases, &blacklist); ++ aliases = apply_blacklist(aliases, blacklist); ++ } ++ } ++ ++ if (aliases) { ++ errfn_t err = error; ++ ++ /* More than one alias? Don't bail out on failure. */ ++ if (aliases->next) ++ err = warn; ++ while (aliases) { ++ /* Add the options for this alias. */ ++ char *opts = NOFAIL(strdup(optstring)); ++ opts = add_extra_options(modulearg, ++ opts, modoptions); ++ ++ read_depends(dirname, aliases->module, &list); ++ handle_module(aliases->module, &list, newname, ++ remove, opts, first_time, err, ++ dry_run, verbose, modoptions, ++ commands, ignore_commands, ++ ignore_proc, strip_vermagic, ++ strip_modversion, ++ unknown_silent, ++ optstring); ++ ++ aliases = aliases->next; ++ INIT_LIST_HEAD(&list); ++ } ++ } else { ++ if (use_blacklist ++ && find_blacklist(modulearg, blacklist)) ++ continue; ++ ++ handle_module(modulearg, &list, newname, remove, ++ optstring, first_time, error, dry_run, ++ verbose, modoptions, commands, ++ ignore_commands, ignore_proc, ++ strip_vermagic, strip_modversion, ++ unknown_silent, optstring); ++ } ++ } ++ if (log) ++ closelog(); ++ ++ return 0; ++} |