Files
Andrea Adami 25c2e973e0 meta-initramfs: import klibc recipe and bbclass from meta-oe
Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
2012-02-22 09:40:24 +01:00

1985 lines
50 KiB
Diff

Patch was imported from the OpenEmbedded git server
(git://git.openembedded.org/openembedded)
as of commit id 70ae69edb02e0174db0841ae501299159c888514
Signed-off-by: Thomas Kunze <thommycheck@gmx.de>
Minor adjustments tracking upstream changes
Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
diff --git a/usr/utils/Kbuild b/usr/utils/Kbuild
--- a/usr/utils/Kbuild
+++ b/usr/utils/Kbuild
@@ -4,7 +4,7 @@
progs := chroot dd mkdir mkfifo mknod mount pivot_root umount
progs += true false sleep ln mv nuke minips cat ls losetup
-progs += uname halt kill readlink cpio sync dmesg
+progs += uname halt kill readlink cpio sync dmesg modprobe
static-y := $(addprefix static/, $(progs))
shared-y := $(addprefix shared/, $(progs))
@@ -58,6 +58,8 @@ static/sync-y := sync.o
shared/sync-y := sync.o
static/losetup-y := losetup.o
shared/losetup-y := losetup.o
+static/modprobe-y := modprobe.o
+shared/modprobe-y := modprobe.o
# Additionally linked targets
always := static/reboot static/poweroff shared/reboot shared/poweroff
diff --git a/usr/utils/list.h b/usr/utils/list.h
--- /dev/null
+++ b/usr/utils/list.h
@@ -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
diff --git a/usr/utils/modprobe.c b/usr/utils/modprobe.c
--- /dev/null
+++ b/usr/utils/modprobe.c
@@ -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;
+}