diff options
author | Eric Andersen <andersen@codepoet.org> | 2005-04-14 07:59:42 +0000 |
---|---|---|
committer | Eric Andersen <andersen@codepoet.org> | 2005-04-14 07:59:42 +0000 |
commit | 483fa88f3e9f8f5b20ac7085f9626123f5c1d3a4 (patch) | |
tree | 430d09d51edaab9cbb0ba495c419554a54f76c50 /target/cramfs/cramfs.patch | |
parent | 2badd4b3e50546c3d745b8fbbd9f71598f5fc369 (diff) |
Update cramfs to handle switching endianness when necessary
Diffstat (limited to 'target/cramfs/cramfs.patch')
-rw-r--r-- | target/cramfs/cramfs.patch | 1269 |
1 files changed, 0 insertions, 1269 deletions
diff --git a/target/cramfs/cramfs.patch b/target/cramfs/cramfs.patch deleted file mode 100644 index 884eb8cb8..000000000 --- a/target/cramfs/cramfs.patch +++ /dev/null @@ -1,1269 +0,0 @@ ---- cramfs-1.1.orig/cramfsck.c 2002-02-22 17:00:42.000000000 -0700 -+++ cramfs-1.1/cramfsck.c 2002-12-21 01:25:17.000000000 -0700 -@@ -51,10 +51,11 @@ - #include <utime.h> - #include <sys/ioctl.h> - #define _LINUX_STRING_H_ --#include <linux/fs.h> --#include <linux/cramfs_fs.h> -+#include "linux/cramfs_fs.h" - #include <zlib.h> - -+#define BLKGETSIZE _IO(0x12,96) /* return device size /512 (long *arg) */ -+ - /* Exit codes used by fsck-type programs */ - #define FSCK_OK 0 /* No errors */ - #define FSCK_NONDESTRUCT 1 /* File system errors corrected */ -@@ -75,7 +76,7 @@ - static int opt_verbose = 0; /* 1 = verbose (-v), 2+ = very verbose (-vv) */ - #ifdef INCLUDE_FS_TESTS - static int opt_extract = 0; /* extract cramfs (-x) */ --static char *extract_dir = "root"; /* extraction directory (-x) */ -+static char *extract_dir = "/"; /* extraction directory (-x) */ - static uid_t euid; /* effective UID */ - - /* (cramfs_super + start) <= start_dir < end_dir <= start_data <= end_data */ -@@ -155,7 +156,7 @@ - } - - if (*length < sizeof(struct cramfs_super)) { -- die(FSCK_UNCORRECTED, 0, "file length too short"); -+ die(FSCK_UNCORRECTED, 0, "filesystem smaller than a cramfs superblock!"); - } - - /* find superblock */ -@@ -190,7 +191,8 @@ - die(FSCK_UNCORRECTED, 0, "zero file count"); - } - if (*length < super.size) { -- die(FSCK_UNCORRECTED, 0, "file length too short"); -+ die(FSCK_UNCORRECTED, 0, "file length too short, %lu is smaller than %lu", -+ *length, super.size); - } - else if (*length > super.size) { - fprintf(stderr, "warning: file extends past end of filesystem\n"); -@@ -267,11 +269,11 @@ - #ifdef INCLUDE_FS_TESTS - static void print_node(char type, struct cramfs_inode *i, char *name) - { -- char info[10]; -+ char info[11]; - - if (S_ISCHR(i->mode) || (S_ISBLK(i->mode))) { - /* major/minor numbers can be as high as 2^12 or 4096 */ -- snprintf(info, 10, "%4d,%4d", major(i->size), minor(i->size)); -+ snprintf(info, 11, "%4d,%4d", major(i->size), minor(i->size)); - } - else { - /* size be as high as 2^24 or 16777216 */ -@@ -445,8 +447,10 @@ - } - /* TODO: Do we need to check end_dir for empty case? */ - memcpy(newpath, path, pathlen); -- newpath[pathlen] = '/'; -- pathlen++; -+ if (pathlen > 1) { -+ newpath[pathlen] = '/'; -+ pathlen++; -+ } - if (opt_verbose) { - print_node('d', i, path); - } ---- cramfs-1.1.orig/device_table.txt 1969-12-31 17:00:00.000000000 -0700 -+++ cramfs-1.1/device_table.txt 2003-01-01 05:13:44.000000000 -0700 -@@ -0,0 +1,129 @@ -+# When building a target filesystem, it is desirable to not have to -+# become root and then run 'mknod' a thousand times. Using a device -+# table you can create device nodes and directories "on the fly". -+# -+# This is a sample device table file for use with mkcramfs. You can -+# do all sorts of interesting things with a device table file. For -+# example, if you want to adjust the permissions on a particular file -+# you can just add an entry like: -+# /sbin/foobar f 2755 0 0 - - - - - -+# and (assuming the file /sbin/foobar exists) it will be made setuid -+# root (regardless of what its permissions are on the host filesystem. -+# Furthermore, you can use a single table entry to create a many device -+# minors. For example, if I wanted to create /dev/hda and /dev/hda[0-15] -+# I could just use the following two table entries: -+# /dev/hda b 640 0 0 3 0 0 0 - -+# /dev/hda b 640 0 0 3 1 1 1 15 -+# -+# Device table entries take the form of: -+# <name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count> -+# where name is the file name, type can be one of: -+# f A regular file -+# d Directory -+# c Character special device file -+# b Block special device file -+# p Fifo (named pipe) -+# uid is the user id for the target file, gid is the group id for the -+# target file. The rest of the entries (major, minor, etc) apply only -+# to device special files. -+ -+# Have fun -+# -Erik Andersen <andersen@codepoet.org> -+# -+ -+#<name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count> -+/dev d 755 0 0 - - - - - -+/dev/mem c 640 0 0 1 1 0 0 - -+/dev/kmem c 640 0 0 1 2 0 0 - -+/dev/null c 640 0 0 1 3 0 0 - -+/dev/zero c 640 0 0 1 5 0 0 - -+/dev/random c 640 0 0 1 8 0 0 - -+/dev/urandom c 640 0 0 1 9 0 0 - -+/dev/tty c 666 0 0 5 0 0 0 - -+/dev/tty c 666 0 0 4 0 0 1 6 -+/dev/console c 640 0 0 5 1 0 0 - -+/dev/ram b 640 0 0 1 1 0 0 - -+/dev/ram b 640 0 0 1 0 0 1 4 -+/dev/loop b 640 0 0 7 0 0 1 2 -+/dev/ptmx c 666 0 0 5 2 0 0 - -+#/dev/ttyS c 640 0 0 4 64 0 1 4 -+#/dev/psaux c 640 0 0 10 1 0 0 - -+#/dev/rtc c 640 0 0 10 135 0 0 - -+ -+# Adjust permissions on some normal files -+#/etc/shadow f 600 0 0 - - - - - -+#/bin/tinylogin f 4755 0 0 - - - - - -+ -+# User-mode Linux stuff -+/dev/ubda b 640 0 0 98 0 0 0 - -+/dev/ubda b 640 0 0 98 1 1 1 15 -+ -+# IDE Devices -+/dev/hda b 640 0 0 3 0 0 0 - -+/dev/hda b 640 0 0 3 1 1 1 15 -+/dev/hdb b 640 0 0 3 64 0 0 - -+/dev/hdb b 640 0 0 3 65 1 1 15 -+#/dev/hdc b 640 0 0 22 0 0 0 - -+#/dev/hdc b 640 0 0 22 1 1 1 15 -+#/dev/hdd b 640 0 0 22 64 0 0 - -+#/dev/hdd b 640 0 0 22 65 1 1 15 -+#/dev/hde b 640 0 0 33 0 0 0 - -+#/dev/hde b 640 0 0 33 1 1 1 15 -+#/dev/hdf b 640 0 0 33 64 0 0 - -+#/dev/hdf b 640 0 0 33 65 1 1 15 -+#/dev/hdg b 640 0 0 34 0 0 0 - -+#/dev/hdg b 640 0 0 34 1 1 1 15 -+#/dev/hdh b 640 0 0 34 64 0 0 - -+#/dev/hdh b 640 0 0 34 65 1 1 15 -+ -+# SCSI Devices -+#/dev/sda b 640 0 0 8 0 0 0 - -+#/dev/sda b 640 0 0 8 1 1 1 15 -+#/dev/sdb b 640 0 0 8 16 0 0 - -+#/dev/sdb b 640 0 0 8 17 1 1 15 -+#/dev/sdc b 640 0 0 8 32 0 0 - -+#/dev/sdc b 640 0 0 8 33 1 1 15 -+#/dev/sdd b 640 0 0 8 48 0 0 - -+#/dev/sdd b 640 0 0 8 49 1 1 15 -+#/dev/sde b 640 0 0 8 64 0 0 - -+#/dev/sde b 640 0 0 8 65 1 1 15 -+#/dev/sdf b 640 0 0 8 80 0 0 - -+#/dev/sdf b 640 0 0 8 81 1 1 15 -+#/dev/sdg b 640 0 0 8 96 0 0 - -+#/dev/sdg b 640 0 0 8 97 1 1 15 -+#/dev/sdh b 640 0 0 8 112 0 0 - -+#/dev/sdh b 640 0 0 8 113 1 1 15 -+#/dev/sg c 640 0 0 21 0 0 1 15 -+#/dev/scd b 640 0 0 11 0 0 1 15 -+#/dev/st c 640 0 0 9 0 0 1 8 -+#/dev/nst c 640 0 0 9 128 0 1 8 -+#/dev/st c 640 0 0 9 32 1 1 4 -+#/dev/st c 640 0 0 9 64 1 1 4 -+#/dev/st c 640 0 0 9 96 1 1 4 -+ -+# Floppy disk devices -+#/dev/fd b 640 0 0 2 0 0 1 2 -+#/dev/fd0d360 b 640 0 0 2 4 0 0 - -+#/dev/fd1d360 b 640 0 0 2 5 0 0 - -+#/dev/fd0h1200 b 640 0 0 2 8 0 0 - -+#/dev/fd1h1200 b 640 0 0 2 9 0 0 - -+#/dev/fd0u1440 b 640 0 0 2 28 0 0 - -+#/dev/fd1u1440 b 640 0 0 2 29 0 0 - -+#/dev/fd0u2880 b 640 0 0 2 32 0 0 - -+#/dev/fd1u2880 b 640 0 0 2 33 0 0 - -+ -+# All the proprietary cdrom devices in the world -+#/dev/aztcd b 640 0 0 29 0 0 0 - -+#/dev/bpcd b 640 0 0 41 0 0 0 - -+#/dev/capi20 c 640 0 0 68 0 0 1 2 -+#/dev/cdu31a b 640 0 0 15 0 0 0 - -+#/dev/cdu535 b 640 0 0 24 0 0 0 - -+#/dev/cm206cd b 640 0 0 32 0 0 0 - -+#/dev/sjcd b 640 0 0 18 0 0 0 - -+#/dev/sonycd b 640 0 0 15 0 0 0 - -+#/dev/gscd b 640 0 0 16 0 0 0 - -+#/dev/sbpcd b 640 0 0 25 0 0 0 - -+#/dev/sbpcd b 640 0 0 25 0 0 1 4 -+#/dev/mcd b 640 0 0 23 0 0 0 - -+#/dev/optcd b 640 0 0 17 0 0 0 - -+ ---- cramfs-1.1.orig/mkcramfs.c 2002-02-20 01:03:32.000000000 -0700 -+++ cramfs-1.1/mkcramfs.c 2002-12-21 01:25:17.000000000 -0700 -@@ -1,3 +1,4 @@ -+/* vi: set sw=8 ts=8: */ - /* - * mkcramfs - make a cramfs file system - * -@@ -16,12 +17,21 @@ - * 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 -+ * -+ * Added device table support (code taken from mkfs.jffs2.c, credit to -+ * Erik Andersen <andersen@codepoet.org>) as well as an option to squash -+ * permissions. - Russ Dill <Russ.Dill@asu.edu> September 2002 -+ * -+ * Reworked, cleaned up, and updated for cramfs-1.1, December 2002 -+ * - Erik Andersen <andersen@codepoet.org> -+ * - */ - - /* - * If you change the disk format of cramfs, please update fs/cramfs/README. - */ - -+#define _GNU_SOURCE - #include <sys/types.h> - #include <stdio.h> - #include <sys/stat.h> -@@ -33,8 +43,15 @@ - #include <errno.h> - #include <string.h> - #include <stdarg.h> -+#include <libgen.h> -+#include <ctype.h> -+#include <assert.h> -+#include <getopt.h> - #include <linux/cramfs_fs.h> - #include <zlib.h> -+#ifdef DMALLOC -+#include <dmalloc.h> -+#endif - - /* Exit codes used by mkfs-type programs */ - #define MKFS_OK 0 /* No errors */ -@@ -71,11 +88,17 @@ - + (1 << CRAMFS_SIZE_WIDTH) - 1 /* filesize */ \ - + (1 << CRAMFS_SIZE_WIDTH) * 4 / PAGE_CACHE_SIZE /* block pointers */ ) - -+ -+/* The kernel assumes PAGE_CACHE_SIZE as block size. */ -+#define PAGE_CACHE_SIZE (4096) -+ -+ - static const char *progname = "mkcramfs"; - static unsigned int blksize = PAGE_CACHE_SIZE; - static long total_blocks = 0, total_nodes = 1; /* pre-count the root node */ - static int image_length = 0; - -+ - /* - * If opt_holes is set, then mkcramfs can create explicit holes in the - * data, which saves 26 bytes per hole (which is a lot smaller a -@@ -91,10 +114,12 @@ - static int opt_holes = 0; - static int opt_pad = 0; - static int opt_verbose = 0; -+static int opt_squash = 0; - static char *opt_image = NULL; - static char *opt_name = NULL; - - static int warn_dev, warn_gid, warn_namelen, warn_skip, warn_size, warn_uid; -+static const char *const memory_exhausted = "memory exhausted"; - - /* In-core version of inode / directory entry. */ - struct entry { -@@ -123,7 +148,7 @@ - { - FILE *stream = status ? stderr : stdout; - -- fprintf(stream, "usage: %s [-h] [-e edition] [-i file] [-n name] dirname outfile\n" -+ fprintf(stream, "usage: %s [-h] [-e edition] [-i file] [-n name] [-D file] dirname outfile\n" - " -h print this help\n" - " -E make all warnings errors (non-zero exit status)\n" - " -e edition set edition number (part of fsid)\n" -@@ -133,39 +158,157 @@ - " -s sort directory entries (old option, ignored)\n" - " -v be more verbose\n" - " -z make explicit holes (requires >= 2.3.39)\n" -- " dirname root of the directory tree to be compressed\n" -+ " -D Use the named FILE as a device table file\n" -+ " -q squash permissions (make everything owned by root)\n" -+ " dirname root of the filesystem to be compressed\n" - " outfile output file\n", progname, PAD_SIZE); - - exit(status); - } - --static void die(int status, int syserr, const char *fmt, ...) -+static void verror_msg(const char *s, va_list p) -+{ -+ fflush(stdout); -+ fprintf(stderr, "mkcramfs: "); -+ vfprintf(stderr, s, p); -+} -+ -+static void vperror_msg(const char *s, va_list p) -+{ -+ int err = errno; -+ -+ if (s == 0) -+ s = ""; -+ verror_msg(s, p); -+ if (*s) -+ s = ": "; -+ fprintf(stderr, "%s%s\n", s, strerror(err)); -+} -+ -+static void perror_msg(const char *s, ...) -+{ -+ va_list p; -+ -+ va_start(p, s); -+ vperror_msg(s, p); -+ va_end(p); -+} -+ -+static void error_msg_and_die(const char *s, ...) -+{ -+ va_list p; -+ -+ va_start(p, s); -+ verror_msg(s, p); -+ va_end(p); -+ putc('\n', stderr); -+ exit(MKFS_ERROR); -+} -+ -+static void perror_msg_and_die(const char *s, ...) -+{ -+ va_list p; -+ -+ va_start(p, s); -+ vperror_msg(s, p); -+ va_end(p); -+ exit(MKFS_ERROR); -+} -+#ifndef DMALLOC -+extern char *xstrdup(const char *s) -+{ -+ char *t; -+ -+ if (s == NULL) -+ return NULL; -+ t = strdup(s); -+ if (t == NULL) -+ error_msg_and_die(memory_exhausted); -+ return t; -+} -+ -+extern void *xmalloc(size_t size) -+{ -+ void *ptr = malloc(size); -+ -+ if (ptr == NULL && size != 0) -+ error_msg_and_die(memory_exhausted); -+ return ptr; -+} -+ -+extern void *xcalloc(size_t nmemb, size_t size) -+{ -+ void *ptr = calloc(nmemb, size); -+ -+ if (ptr == NULL && nmemb != 0 && size != 0) -+ error_msg_and_die(memory_exhausted); -+ return ptr; -+} -+ -+extern void *xrealloc(void *ptr, size_t size) -+{ -+ ptr = realloc(ptr, size); -+ if (ptr == NULL && size != 0) -+ error_msg_and_die(memory_exhausted); -+ return ptr; -+} -+#endif -+ -+static FILE *xfopen(const char *path, const char *mode) - { -- va_list arg_ptr; -- int save = errno; -+ FILE *fp; -+ -+ if ((fp = fopen(path, mode)) == NULL) -+ perror_msg_and_die("%s", path); -+ return fp; -+} - -- fflush(0); -- va_start(arg_ptr, fmt); -- fprintf(stderr, "%s: ", progname); -- vfprintf(stderr, fmt, arg_ptr); -- if (syserr) { -- fprintf(stderr, ": %s", strerror(save)); -+extern int xopen(const char *pathname, int flags, mode_t mode) -+{ -+ int ret; -+ -+ if (flags & O_CREAT) -+ ret = open(pathname, flags, mode); -+ else -+ ret = open(pathname, flags); -+ if (ret == -1) { -+ perror_msg_and_die("%s", pathname); - } -- fprintf(stderr, "\n"); -- va_end(arg_ptr); -- exit(status); -+ return ret; - } - -+extern char *xreadlink(const char *path) -+{ -+ static const int GROWBY = 80; /* how large we will grow strings by */ -+ -+ char *buf = NULL; -+ int bufsize = 0, readsize = 0; -+ -+ do { -+ buf = xrealloc(buf, bufsize += GROWBY); -+ readsize = readlink(path, buf, bufsize); /* 1st try */ -+ if (readsize == -1) { -+ perror_msg("%s:%s", progname, path); -+ return NULL; -+ } -+ } -+ while (bufsize < readsize + 1); -+ -+ buf[readsize] = '\0'; -+ -+ return buf; -+} -+ - static void map_entry(struct entry *entry) - { - if (entry->path) { - entry->fd = open(entry->path, O_RDONLY); - if (entry->fd < 0) { -- die(MKFS_ERROR, 1, "open failed: %s", entry->path); -+ error_msg_and_die("open failed: %s", entry->path); - } - entry->uncompressed = mmap(NULL, entry->size, PROT_READ, MAP_PRIVATE, entry->fd, 0); - if (entry->uncompressed == MAP_FAILED) { -- die(MKFS_ERROR, 1, "mmap failed: %s", entry->path); -+ error_msg_and_die("mmap failed: %s", entry->path); - } - } - } -@@ -174,8 +317,9 @@ - { - if (entry->path) { - if (munmap(entry->uncompressed, entry->size) < 0) { -- die(MKFS_ERROR, 1, "munmap failed: %s", entry->path); -+ error_msg_and_die("munmap failed: %s", entry->path); - } -+ entry->uncompressed=NULL; - close(entry->fd); - } - } -@@ -204,7 +348,8 @@ - find_identical_file(orig->next, newfile)); - } - --static void eliminate_doubles(struct entry *root, struct entry *orig) { -+static void eliminate_doubles(struct entry *root, struct entry *orig) -+{ - if (orig) { - if (orig->size && (orig->path || orig->uncompressed)) - find_identical_file(root, orig); -@@ -232,10 +377,7 @@ - - /* Set up the path. */ - /* TODO: Reuse the parent's buffer to save memcpy'ing and duplication. */ -- path = malloc(len + 1 + MAX_INPUT_NAMELEN + 1); -- if (!path) { -- die(MKFS_ERROR, 1, "malloc failed"); -- } -+ path = xmalloc(len + 1 + MAX_INPUT_NAMELEN + 1); - memcpy(path, name, len); - endpath = path + len; - *endpath = '/'; -@@ -245,7 +387,7 @@ - dircount = scandir(name, &dirlist, 0, cramsort); - - if (dircount < 0) { -- die(MKFS_ERROR, 1, "scandir failed: %s", name); -+ error_msg_and_die("scandir failed: %s", name); - } - - /* process directory */ -@@ -269,25 +411,20 @@ - } - namelen = strlen(dirent->d_name); - if (namelen > MAX_INPUT_NAMELEN) { -- die(MKFS_ERROR, 0, -- "very long (%u bytes) filename found: %s\n" -- "please increase MAX_INPUT_NAMELEN in mkcramfs.c and recompile", -+ error_msg_and_die( -+ "Very long (%u bytes) filename `%s' found.\n" -+ " Please increase MAX_INPUT_NAMELEN in mkcramfs.c and recompile. Exiting.\n", - namelen, dirent->d_name); - } - memcpy(endpath, dirent->d_name, namelen + 1); - - if (lstat(path, &st) < 0) { -+ perror(endpath); - warn_skip = 1; - continue; - } -- entry = calloc(1, sizeof(struct entry)); -- if (!entry) { -- die(MKFS_ERROR, 1, "calloc failed"); -- } -- entry->name = strdup(dirent->d_name); -- if (!entry->name) { -- die(MKFS_ERROR, 1, "strdup failed"); -- } -+ entry = xcalloc(1, sizeof(struct entry)); -+ entry->name = xstrdup(dirent->d_name); - /* truncate multi-byte UTF-8 filenames on character boundary */ - if (namelen > CRAMFS_MAXPATHLEN) { - namelen = CRAMFS_MAXPATHLEN; -@@ -297,24 +434,25 @@ - namelen--; - /* are we reasonably certain it was UTF-8 ? */ - if (entry->name[namelen] < 0x80 || !namelen) { -- die(MKFS_ERROR, 0, "cannot truncate filenames not encoded in UTF-8"); -+ error_msg_and_die("cannot truncate filenames not encoded in UTF-8"); - } - } - entry->name[namelen] = '\0'; - } - entry->mode = st.st_mode; - entry->size = st.st_size; -- entry->uid = st.st_uid; -+ entry->uid = opt_squash ? 0 : st.st_uid; - if (entry->uid >= 1 << CRAMFS_UID_WIDTH) - warn_uid = 1; -- entry->gid = st.st_gid; -- if (entry->gid >= 1 << CRAMFS_GID_WIDTH) -+ entry->gid = opt_squash ? 0 : st.st_gid; -+ if (entry->gid >= 1 << CRAMFS_GID_WIDTH) { - /* TODO: We ought to replace with a default - gid instead of truncating; otherwise there - are security problems. Maybe mode should - be &= ~070. Same goes for uid once Linux - supports >16-bit uids. */ - warn_gid = 1; -+ } - size = sizeof(struct cramfs_inode) + ((namelen + 3) & ~3); - *fslen_ub += size; - if (S_ISDIR(st.st_mode)) { -@@ -325,21 +463,15 @@ - warn_skip = 1; - continue; - } -- entry->path = strdup(path); -- if (!entry->path) { -- die(MKFS_ERROR, 1, "strdup failed"); -- } -+ entry->path = xstrdup(path); - if ((entry->size >= 1 << CRAMFS_SIZE_WIDTH)) { - warn_size = 1; - entry->size = (1 << CRAMFS_SIZE_WIDTH) - 1; - } - } - } else if (S_ISLNK(st.st_mode)) { -- entry->uncompressed = malloc(entry->size); -+ entry->uncompressed = xreadlink(path); - if (!entry->uncompressed) { -- die(MKFS_ERROR, 1, "malloc failed"); -- } -- if (readlink(path, entry->uncompressed, entry->size) < 0) { - warn_skip = 1; - continue; - } -@@ -351,7 +483,7 @@ - if (entry->size & -(1<<CRAMFS_SIZE_WIDTH)) - warn_dev = 1; - } else { -- die(MKFS_ERROR, 0, "bogus file type: %s", entry->name); -+ error_msg_and_die("bogus file type: %s", entry->name); - } - - if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { -@@ -378,7 +510,9 @@ - struct cramfs_super *super = (struct cramfs_super *) base; - unsigned int offset = sizeof(struct cramfs_super) + image_length; - -- offset += opt_pad; /* 0 if no padding */ -+ if (opt_pad) { -+ offset += opt_pad; /* 0 if no padding */ -+ } - - super->magic = CRAMFS_MAGIC; - super->flags = CRAMFS_FLAG_FSID_VERSION_2 | CRAMFS_FLAG_SORTED_DIRS; -@@ -414,10 +548,10 @@ - struct cramfs_inode *inode = (struct cramfs_inode *) (base + entry->dir_offset); - - if ((offset & 3) != 0) { -- die(MKFS_ERROR, 0, "illegal offset of %lu bytes", offset); -+ error_msg_and_die("illegal offset of %lu bytes", offset); - } - if (offset >= (1 << (2 + CRAMFS_OFFSET_WIDTH))) { -- die(MKFS_ERROR, 0, "filesystem too big"); -+ error_msg_and_die("filesystem too big"); - } - inode->offset = (offset >> 2); - } -@@ -429,7 +563,7 @@ - */ - static void print_node(struct entry *e) - { -- char info[10]; -+ char info[12]; - char type = '?'; - - if (S_ISREG(e->mode)) type = 'f'; -@@ -442,11 +576,11 @@ - - if (S_ISCHR(e->mode) || (S_ISBLK(e->mode))) { - /* major/minor numbers can be as high as 2^12 or 4096 */ -- snprintf(info, 10, "%4d,%4d", major(e->size), minor(e->size)); -+ snprintf(info, 11, "%4d,%4d", major(e->size), minor(e->size)); - } - else { - /* size be as high as 2^24 or 16777216 */ -- snprintf(info, 10, "%9d", e->size); -+ snprintf(info, 11, "%9d", e->size); - } - - printf("%c %04o %s %5d:%-3d %s\n", -@@ -462,17 +596,9 @@ - { - int stack_entries = 0; - int stack_size = 64; -- struct entry **entry_stack; -- -- entry_stack = malloc(stack_size * sizeof(struct entry *)); -- if (!entry_stack) { -- die(MKFS_ERROR, 1, "malloc failed"); -- } -- -- if (opt_verbose) { -- printf("root:\n"); -- } -+ struct entry **entry_stack = NULL; - -+ entry_stack = xmalloc(stack_size * sizeof(struct entry *)); - for (;;) { - int dir_start = stack_entries; - while (entry) { -@@ -506,10 +632,7 @@ - if (entry->child) { - if (stack_entries >= stack_size) { - stack_size *= 2; -- entry_stack = realloc(entry_stack, stack_size * sizeof(struct entry *)); -- if (!entry_stack) { -- die(MKFS_ERROR, 1, "realloc failed"); -- } -+ entry_stack = xrealloc(entry_stack, stack_size * sizeof(struct entry *)); - } - entry_stack[stack_entries] = entry; - stack_entries++; -@@ -543,7 +666,7 @@ - - set_data_offset(entry, base, offset); - if (opt_verbose) { -- printf("%s:\n", entry->name); -+ printf("'%s':\n", entry->name); - } - entry = entry->child; - } -@@ -553,16 +676,21 @@ - - static int is_zero(char const *begin, unsigned len) - { -- /* Returns non-zero iff the first LEN bytes from BEGIN are all NULs. */ -- return (len-- == 0 || -- (begin[0] == '\0' && -- (len-- == 0 || -- (begin[1] == '\0' && -- (len-- == 0 || -- (begin[2] == '\0' && -- (len-- == 0 || -- (begin[3] == '\0' && -- memcmp(begin, begin + 4, len) == 0)))))))); -+ if (opt_holes) -+ /* Returns non-zero iff the first LEN bytes from BEGIN are -+ all NULs. */ -+ return (len-- == 0 || -+ (begin[0] == '\0' && -+ (len-- == 0 || -+ (begin[1] == '\0' && -+ (len-- == 0 || -+ (begin[2] == '\0' && -+ (len-- == 0 || -+ (begin[3] == '\0' && -+ memcmp(begin, begin + 4, len) == 0)))))))); -+ else -+ /* Never create holes. */ -+ return 0; - } - - /* -@@ -575,37 +703,34 @@ - * Note that size > 0, as a zero-sized file wouldn't ever - * have gotten here in the first place. - */ --static unsigned int do_compress(char *base, unsigned int offset, char const *name, char *uncompressed, unsigned int size) -+static unsigned int do_compress(char *base, unsigned int offset, struct entry *entry) - { -+ unsigned int size = entry->size; - unsigned long original_size = size; - unsigned long original_offset = offset; - unsigned long new_size; - unsigned long blocks = (size - 1) / blksize + 1; - unsigned long curr = offset + 4 * blocks; - int change; -+ char *uncompressed = entry->uncompressed; - -- total_blocks += blocks; -+ total_blocks += blocks; - - do { - unsigned long len = 2 * blksize; - unsigned int input = size; -- int err; -- - if (input > blksize) - input = blksize; - size -= input; -- if (!(opt_holes && is_zero (uncompressed, input))) { -- err = compress2(base + curr, &len, uncompressed, input, Z_BEST_COMPRESSION); -- if (err != Z_OK) { -- die(MKFS_ERROR, 0, "compression error: %s", zError(err)); -- } -+ if (!is_zero (uncompressed, input)) { -+ compress(base + curr, &len, uncompressed, input); - curr += len; - } - uncompressed += input; - - if (len > blksize*2) { - /* (I don't think this can happen with zlib.) */ -- die(MKFS_ERROR, 0, "AIEEE: block \"compressed\" to > 2*blocklength (%ld)", len); -+ error_msg_and_die("AIEEE: block \"compressed\" to > 2*blocklength (%ld)\n", len); - } - - *(u32 *) (base + offset) = curr; -@@ -618,10 +743,12 @@ - st_blocks * 512. But if you say that then perhaps - administrative data should also be included in both. */ - change = new_size - original_size; -- if (opt_verbose > 1) { -- printf("%6.2f%% (%+d bytes)\t%s\n", -- (change * 100) / (double) original_size, change, name); -+#if 0 -+ if (opt_verbose) { -+ printf("%6.2f%% (%+d bytes)\t%s\n", -+ (change * 100) / (double) original_size, change, entry->name); - } -+#endif - - return curr; - } -@@ -644,7 +771,7 @@ - set_data_offset(entry, base, offset); - entry->offset = offset; - map_entry(entry); -- offset = do_compress(base, offset, entry->name, entry->uncompressed, entry->size); -+ offset = do_compress(base, offset, entry); - unmap_entry(entry); - } - } -@@ -660,13 +787,10 @@ - int fd; - char *buf; - -- fd = open(file, O_RDONLY); -- if (fd < 0) { -- die(MKFS_ERROR, 1, "open failed: %s", file); -- } -+ fd = xopen(file, O_RDONLY, 0); - buf = mmap(NULL, image_length, PROT_READ, MAP_PRIVATE, fd, 0); - if (buf == MAP_FAILED) { -- die(MKFS_ERROR, 1, "mmap failed"); -+ error_msg_and_die("mmap failed"); - } - memcpy(base + offset, buf, image_length); - munmap(buf, image_length); -@@ -679,6 +803,328 @@ - return (offset + image_length); - } - -+static struct entry *find_filesystem_entry(struct entry *dir, char *name, mode_t type) -+{ -+ struct entry *e = dir; -+ -+ if (S_ISDIR(dir->mode)) { -+ e = dir->child; -+ } -+ while (e) { -+ /* Only bother to do the expensive strcmp on matching file types */ -+ if (type == (e->mode & S_IFMT) && e->name) { -+ if (S_ISDIR(e->mode)) { -+ int len = strlen(e->name); -+ -+ /* Check if we are a parent of the correct path */ -+ if (strncmp(e->name, name, len) == 0) { -+ /* Is this an _exact_ match? */ -+ if (strcmp(name, e->name) == 0) { -+ return (e); -+ } -+ /* Looks like we found a parent of the correct path */ -+ if (name[len] == '/') { -+ if (e->child) { -+ return (find_filesystem_entry (e, name + len + 1, type)); -+ } else { -+ return NULL; -+ } -+ } -+ } -+ } else { -+ if (strcmp(name, e->name) == 0) { -+ return (e); -+ } -+ } -+ } -+ e = e->next; -+ } -+ return (NULL); -+} -+ -+void modify_entry(char *full_path, unsigned long uid, unsigned long gid, -+ unsigned long mode, unsigned long rdev, struct entry *root, loff_t *fslen_ub) -+{ -+ char *name, *path, *full; -+ struct entry *curr, *parent, *entry, *prev; -+ -+ full = xstrdup(full_path); -+ path = xstrdup(dirname(full)); -+ name = full_path + strlen(path) + 1; -+ free(full); -+ if (strcmp(path, "/") == 0) { -+ parent = root; -+ name = full_path + 1; -+ } else { -+ if (!(parent = find_filesystem_entry(root, path+1, S_IFDIR))) -+ error_msg_and_die("%s/%s: could not find parent\n", path, name); -+ } -+ if ((entry = find_filesystem_entry(parent, name, (mode & S_IFMT)))) { -+ /* its there, just modify permissions */ -+ entry->mode = mode; -+ entry->uid = uid; -+ entry->gid = gid; -+ } else { /* make a new entry */ -+ -+ /* code partially replicated from parse_directory() */ -+ size_t namelen; -+ if (S_ISREG(mode)) { -+ error_msg_and_die("%s: regular file from device_table file must exist on disk!", full_path); -+ } -+ -+ namelen = strlen(name); -+ if (namelen > MAX_INPUT_NAMELEN) { -+ error_msg_and_die( -+ "Very long (%u bytes) filename `%s' found.\n" -+ " Please increase MAX_INPUT_NAMELEN in mkcramfs.c and recompile. Exiting.\n", -+ namelen, name); -+ } -+ entry = xcalloc(1, sizeof(struct entry)); -+ entry->name = xstrdup(name); -+ /* truncate multi-byte UTF-8 filenames on character boundary */ -+ if (namelen > CRAMFS_MAXPATHLEN) { -+ namelen = CRAMFS_MAXPATHLEN; -+ warn_namelen = 1; -+ /* the first lost byte must not be a trail byte */ -+ while ((entry->name[namelen] & 0xc0) == 0x80) { -+ namelen--; -+ /* are we reasonably certain it was UTF-8 ? */ -+ if (entry->name[namelen] < 0x80 || !namelen) { -+ error_msg_and_die("cannot truncate filenames not encoded in UTF-8"); -+ } -+ } -+ entry->name[namelen] = '\0'; -+ } -+ entry->mode = mode; -+ entry->uid = uid; -+ entry->gid = gid; -+ entry->size = 0; -+ if (S_ISBLK(mode) || S_ISCHR(mode)) { -+ entry->size = rdev; -+ if (entry->size & -(1<<CRAMFS_SIZE_WIDTH)) -+ warn_dev = 1; -+ } -+ -+ /* ok, now we have to backup and correct the size of all the entries above us */ -+ *fslen_ub += sizeof(struct cramfs_inode) + ((namelen + 3) & ~3); -+ parent->size += sizeof(struct cramfs_inode) + ((namelen + 3) & ~3); -+ -+ /* alright, time to link us in */ -+ curr = parent->child; -+ prev = NULL; -+ while (curr && strcmp(name, curr->name) > 0) { -+ prev = curr; -+ curr = curr->next; -+ } -+ if (!prev) parent->child = entry; -+ else prev->next = entry; -+ entry->next = curr; -+ entry->child = NULL; -+ } -+ if (entry->uid >= 1 << CRAMFS_UID_WIDTH) -+ warn_uid = 1; -+ if (entry->gid >= 1 << CRAMFS_GID_WIDTH) { -+ /* TODO: We ought to replace with a default -+ gid instead of truncating; otherwise there -+ are security problems. Maybe mode should -+ be &= ~070. Same goes for uid once Linux -+ supports >16-bit uids. */ -+ warn_gid = 1; -+ } -+ free(path); -+} -+ -+/* the GNU C library has a wonderful scanf("%as", string) which will -+ allocate the string with the right size, good to avoid buffer overruns. -+ the following macros use it if available or use a hacky workaround... -+ */ -+ -+#ifdef __GNUC__ -+#define SCANF_PREFIX "a" -+#define SCANF_STRING(s) (&s) -+#define GETCWD_SIZE 0 -+#else -+#define SCANF_PREFIX "511" -+#define SCANF_STRING(s) (s = xmalloc(512)) -+#define GETCWD_SIZE -1 -+inline int snprintf(char *str, size_t n, const char *fmt, ...) -+{ -+ int ret; -+ va_list ap; -+ -+ va_start(ap, fmt); -+ ret = vsprintf(str, fmt, ap); -+ va_end(ap); -+ return ret; -+} -+#endif -+ -+/* device table entries take the form of: -+ <path> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count> -+ /dev/mem c 640 0 0 1 1 0 0 - -+ -+ type can be one of: -+ f A regular file -+ d Directory -+ c Character special device file -+ b Block special device file -+ p Fifo (named pipe) -+ -+ I don't bother with symlinks (permissions are irrelevant), hard -+ links (special cases of regular files), or sockets (why bother). -+ -+ Regular files must exist in the target root directory. If a char, -+ block, fifo, or directory does not exist, it will be created. -+*/ -+ -+static int interpret_table_entry(char *line, struct entry *root, loff_t *fslen_ub) -+{ -+ char type, *name = NULL; -+ unsigned long mode = 0755, uid = 0, gid = 0, major = 0, minor = 0; -+ unsigned long start = 0, increment = 1, count = 0; -+ -+ if (sscanf (line, "%" SCANF_PREFIX "s %c %lo %lu %lu %lu %lu %lu %lu %lu", -+ SCANF_STRING(name), &type, &mode, &uid, &gid, &major, &minor, -+ &start, &increment, &count) < 0) -+ { -+ return 1; -+ } -+ -+ if (!strcmp(name, "/")) { -+ error_msg_and_die("Device table entries require absolute paths"); -+ } -+ -+ switch (type) { -+ case 'd': -+ mode |= S_IFDIR; -+ modify_entry(name, uid, gid, mode, 0, root, fslen_ub); -+ break; -+ case 'f': -+ mode |= S_IFREG; -+ modify_entry(name, uid, gid, mode, 0, root, fslen_ub); -+ break; -+ case 'p': -+ mode |= S_IFIFO; -+ modify_entry(name, uid, gid, mode, 0, root, fslen_ub); -+ break; -+ case 'c': -+ case 'b': -+ mode |= (type == 'c') ? S_IFCHR : S_IFBLK; -+ if (count > 0) { -+ char *buf; -+ unsigned long i; -+ dev_t rdev; -+ -+ for (i = start; i < count; i++) { -+ asprintf(&buf, "%s%lu", name, i); -+ rdev = makedev(major, minor + (i * increment - start)); -+ modify_entry(buf, uid, gid, mode, rdev, root, fslen_ub); -+ free(buf); -+ } -+ } else { -+ dev_t rdev = makedev(major, minor); -+ modify_entry(name, uid, gid, mode, rdev, root, fslen_ub); -+ } -+ break; -+ default: -+ error_msg_and_die("Unsupported file type"); -+ } -+ free(name); -+ return 0; -+} -+ -+static int parse_device_table(FILE *file, struct entry *root, loff_t *fslen_ub) -+{ -+ char *line; -+ int status = 0; -+ size_t length = 0; -+ -+ /* Turn off squash, since we must ensure that values -+ * entered via the device table are not squashed */ -+ opt_squash = 0; -+ -+ /* Looks ok so far. The general plan now is to read in one -+ * line at a time, check for leading comment delimiters ('#'), -+ * then try and parse the line as a device table. If we fail -+ * to parse things, try and help the poor fool to fix their -+ * device table with a useful error msg... */ -+ line = NULL; -+ while (getline(&line, &length, file) != -1) { -+ /* First trim off any whitespace */ -+ int len = strlen(line); -+ -+ /* trim trailing whitespace */ -+ while (len > 0 && isspace(line[len - 1])) -+ line[--len] = '\0'; -+ /* trim leading whitespace */ -+ memmove(line, &line[strspn(line, " \n\r\t\v")], len); -+ -+ /* How long are we after trimming? */ -+ len = strlen(line); -+ -+ /* If this is NOT a comment line, try to interpret it */ -+ if (len && *line != '#') { -+ if (interpret_table_entry(line, root, fslen_ub)) -+ status = 1; -+ } -+ -+ free(line); -+ line = NULL; -+ } -+ free(line); -+ fclose(file); -+ -+ return status; -+} -+ -+void traverse(struct entry *entry, int depth) -+{ -+ struct entry *curr = entry; -+ int i; -+ -+ while (curr) { -+ for (i = 0; i < depth; i++) putchar(' '); -+ printf("%s: size=%d mode=%d same=%p\n", -+ (curr->name)? (char*)curr->name : "/", -+ curr->size, curr->mode, curr->same); -+ if (curr->child) traverse(curr->child, depth + 4); -+ curr = curr->next; -+ } -+} -+ -+static void free_filesystem_entry(struct entry *dir) -+{ -+ struct entry *e = dir, *last; -+ -+ if (S_ISDIR(dir->mode)) { -+ e = dir->child; -+ } -+ while (e) { -+ if (e->name) -+ free(e->name); -+ if (e->path) -+ free(e->path); -+ if (e->uncompressed) -+ free(e->uncompressed); -+ last = e; -+ if (e->child) { -+ free_filesystem_entry(e); -+ } -+ e = e->next; -+ free(last); -+ } -+} -+ -+ -+/* -+ * Usage: -+ * -+ * mkcramfs directory-name outfile -+ * -+ * where "directory-name" is simply the root of the directory -+ * tree that we want to generate a compressed filesystem out -+ * of. -+ */ - int main(int argc, char **argv) - { - struct stat st; /* used twice... */ -@@ -692,6 +1138,7 @@ - u32 crc; - int c; /* for getopt */ - char *ep; /* for strtoul */ -+ FILE *devtable = NULL; - - total_blocks = 0; - -@@ -699,7 +1146,7 @@ - progname = argv[0]; - - /* command line options */ -- while ((c = getopt(argc, argv, "hEe:i:n:psvz")) != EOF) { -+ while ((c = getopt(argc, argv, "hEe:i:n:psvzD:q")) != EOF) { - switch (c) { - case 'h': - usage(MKFS_OK); -@@ -715,7 +1162,7 @@ - case 'i': - opt_image = optarg; - if (lstat(opt_image, &st) < 0) { -- die(MKFS_ERROR, 1, "lstat failed: %s", opt_image); -+ error_msg_and_die("lstat failed: %s", opt_image); - } - image_length = st.st_size; /* may be padded later */ - fslen_ub += (image_length + 3); /* 3 is for padding */ -@@ -736,6 +1183,16 @@ - case 'z': - opt_holes = 1; - break; -+ case 'q': -+ opt_squash = 1; -+ break; -+ case 'D': -+ devtable = xfopen(optarg, "r"); -+ if (fstat(fileno(devtable), &st) < 0) -+ perror_msg_and_die(optarg); -+ if (st.st_size < 10) -+ error_msg_and_die("%s: not a proper device table file\n", optarg); -+ break; - } - } - -@@ -745,25 +1202,23 @@ - outfile = argv[optind + 1]; - - if (stat(dirname, &st) < 0) { -- die(MKFS_USAGE, 1, "stat failed: %s", dirname); -- } -- fd = open(outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666); -- if (fd < 0) { -- die(MKFS_USAGE, 1, "open failed: %s", outfile); -+ error_msg_and_die("stat failed: %s", dirname); - } -+ fd = xopen(outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666); - -- root_entry = calloc(1, sizeof(struct entry)); -- if (!root_entry) { -- die(MKFS_ERROR, 1, "calloc failed"); -- } -+ root_entry = xcalloc(1, sizeof(struct entry)); - root_entry->mode = st.st_mode; - root_entry->uid = st.st_uid; - root_entry->gid = st.st_gid; - - root_entry->size = parse_directory(root_entry, dirname, &root_entry->child, &fslen_ub); - -+ if (devtable) { -+ parse_device_table(devtable, root_entry, &fslen_ub); -+ } -+ - /* always allocate a multiple of blksize bytes because that's -- what we're going to write later on */ -+ what we're going to write later on */ - fslen_ub = ((fslen_ub - 1) | (blksize - 1)) + 1; - - if (fslen_ub > MAXFSLEN) { -@@ -790,7 +1245,7 @@ - rom_image = mmap(NULL, fslen_ub?fslen_ub:1, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); - - if (rom_image == MAP_FAILED) { -- die(MKFS_ERROR, 1, "mmap failed"); -+ error_msg_and_die("mmap failed"); - } - - /* Skip the first opt_pad bytes for boot loader code */ -@@ -807,6 +1262,7 @@ - } - - offset = write_directory_structure(root_entry->child, rom_image, offset); -+ if (opt_verbose) - printf("Directory data: %d bytes\n", offset); - - offset = write_data(root_entry, rom_image, offset); -@@ -814,30 +1270,38 @@ - /* We always write a multiple of blksize bytes, so that - losetup works. */ - offset = ((offset - 1) | (blksize - 1)) + 1; -+ if (opt_verbose) - printf("Everything: %d kilobytes\n", offset >> 10); - - /* Write the superblock now that we can fill in all of the fields. */ - write_superblock(root_entry, rom_image+opt_pad, offset); -+ if (opt_verbose) - printf("Super block: %d bytes\n", sizeof(struct cramfs_super)); - - /* Put the checksum in. */ - crc = crc32(0L, Z_NULL, 0); - crc = crc32(crc, (rom_image+opt_pad), (offset-opt_pad)); - ((struct cramfs_super *) (rom_image+opt_pad))->fsid.crc = crc; -+ if (opt_verbose) - printf("CRC: %x\n", crc); - - /* Check to make sure we allocated enough space. */ - if (fslen_ub < offset) { -- die(MKFS_ERROR, 0, "not enough space allocated for ROM image (%Ld allocated, %d used)", fslen_ub, offset); -+ error_msg_and_die("not enough space allocated for ROM " -+ "image (%Ld allocated, %d used)", fslen_ub, offset); - } - - written = write(fd, rom_image, offset); - if (written < 0) { -- die(MKFS_ERROR, 1, "write failed"); -+ error_msg_and_die("write failed"); - } - if (offset != written) { -- die(MKFS_ERROR, 0, "ROM image write failed (wrote %d of %d bytes)", written, offset); -+ error_msg_and_die("ROM image write failed (wrote %d of %d bytes)", written, offset); - } -+ -+ /* Free up memory */ -+ free_filesystem_entry(root_entry); -+ free(root_entry); - - /* (These warnings used to come at the start, but they scroll off the - screen too quickly.) */ |