diff options
Diffstat (limited to 'mkfs')
| -rw-r--r-- | mkfs/Makemodule.am | 13 | ||||
| -rw-r--r-- | mkfs/dirscan.c | 321 | ||||
| -rw-r--r-- | mkfs/mkfs.c | 216 | ||||
| -rw-r--r-- | mkfs/mkfs.h | 72 | ||||
| -rw-r--r-- | mkfs/options.c | 289 | ||||
| -rw-r--r-- | mkfs/selinux.c | 78 |
6 files changed, 0 insertions, 989 deletions
diff --git a/mkfs/Makemodule.am b/mkfs/Makemodule.am deleted file mode 100644 index 34f3d76..0000000 --- a/mkfs/Makemodule.am +++ /dev/null @@ -1,13 +0,0 @@ -gensquashfs_SOURCES = mkfs/mkfs.c mkfs/mkfs.h mkfs/options.c -gensquashfs_SOURCES += mkfs/dirscan.c mkfs/selinux.c -gensquashfs_LDADD = libcommon.a libsquashfs.la libfstree.a -gensquashfs_LDADD += libcompat.a $(LIBSELINUX_LIBS) $(LZO_LIBS) -gensquashfs_LDADD += $(PTHREAD_LIBS) -gensquashfs_CPPFLAGS = $(AM_CPPFLAGS) -gensquashfs_CFLAGS = $(AM_CFLAGS) $(LIBSELINUX_CFLAGS) $(PTHREAD_CFLAGS) - -if WITH_SELINUX -gensquashfs_CPPFLAGS += -DWITH_SELINUX -endif - -bin_PROGRAMS += gensquashfs diff --git a/mkfs/dirscan.c b/mkfs/dirscan.c deleted file mode 100644 index dbc862c..0000000 --- a/mkfs/dirscan.c +++ /dev/null @@ -1,321 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * fstree_from_dir.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#include "mkfs.h" - -#ifdef HAVE_SYS_XATTR_H -static char *get_full_path(const char *prefix, tree_node_t *node) -{ - char *path = NULL, *new = NULL; - size_t path_len, prefix_len; - int ret; - - path = fstree_get_path(node); - if (path == NULL) - goto fail; - - ret = canonicalize_name(path); - assert(ret == 0); - - path_len = strlen(path); - prefix_len = strlen(prefix); - - while (prefix_len > 0 && prefix[prefix_len - 1] == '/') - --prefix_len; - - if (prefix_len > 0) { - new = realloc(path, path_len + prefix_len + 2); - if (new == NULL) - goto fail; - - path = new; - - memmove(path + prefix_len + 1, path, path_len + 1); - memcpy(path, prefix, prefix_len); - path[prefix_len] = '/'; - } - - return path; -fail: - perror("getting full path for xattr scan"); - free(path); - return NULL; -} - -static int xattr_from_path(sqfs_xattr_writer_t *xwr, const char *path) -{ - char *key, *value = NULL, *buffer = NULL; - ssize_t buflen, vallen, keylen; - int ret; - - buflen = llistxattr(path, NULL, 0); - if (buflen < 0) { - fprintf(stderr, "llistxattr %s: %s", path, strerror(errno)); - return -1; - } - - if (buflen == 0) - return 0; - - buffer = malloc(buflen); - if (buffer == NULL) { - perror("xattr name buffer"); - return -1; - } - - buflen = llistxattr(path, buffer, buflen); - if (buflen == -1) { - fprintf(stderr, "llistxattr %s: %s", path, strerror(errno)); - goto fail; - } - - key = buffer; - while (buflen > 0) { - vallen = lgetxattr(path, key, NULL, 0); - if (vallen == -1) { - fprintf(stderr, "lgetxattr %s: %s", - path, strerror(errno)); - goto fail; - } - - if (vallen > 0) { - value = calloc(1, vallen); - if (value == NULL) { - perror("allocating xattr value buffer"); - goto fail; - } - - vallen = lgetxattr(path, key, value, vallen); - if (vallen == -1) { - fprintf(stderr, "lgetxattr %s: %s\n", - path, strerror(errno)); - goto fail; - } - - ret = sqfs_xattr_writer_add(xwr, key, value, vallen); - if (ret) { - sqfs_perror(path, - "storing xattr key-value pairs", - ret); - goto fail; - } - - free(value); - value = NULL; - } - - keylen = strlen(key) + 1; - buflen -= keylen; - key += keylen; - } - - free(buffer); - return 0; -fail: - free(value); - free(buffer); - return -1; -} -#endif - -#ifdef _WIN32 -int fstree_from_dir(fstree_t *fs, const char *path, void *selinux_handle, - sqfs_xattr_writer_t *xwr, unsigned int flags) -{ - (void)fs; (void)path; (void)selinux_handle; (void)xwr; (void)flags; - fputs("Packing a directory is not supported on Windows.\n", stderr); - return -1; -} -#else -static int xattr_xcan_dfs(const char *path_prefix, void *selinux_handle, - sqfs_xattr_writer_t *xwr, unsigned int flags, - tree_node_t *node) -{ - char *path; - int ret; - - ret = sqfs_xattr_writer_begin(xwr); - if (ret) { - sqfs_perror(node->name, "recoding xattr key-value pairs\n", - ret); - return -1; - } - -#ifdef HAVE_SYS_XATTR_H - if (flags & DIR_SCAN_READ_XATTR) { - path = get_full_path(path_prefix, node); - if (path == NULL) - return -1; - - ret = xattr_from_path(xwr, path); - free(path); - - if (ret) - return -1; - } -#else - (void)path_prefix; -#endif - - if (selinux_handle != NULL) { - path = fstree_get_path(node); - if (path == NULL) { - perror("reconstructing absolute path"); - return -1; - } - - ret = selinux_relable_node(selinux_handle, xwr, node, path); - free(path); - - if (ret) - return -1; - } - - if (sqfs_xattr_writer_end(xwr, &node->xattr_idx)) { - sqfs_perror(node->name, "completing xattr key-value pairs", - ret); - return -1; - } - - if (S_ISDIR(node->mode)) { - node = node->data.dir.children; - - while (node != NULL) { - if (xattr_xcan_dfs(path_prefix, selinux_handle, xwr, - flags, node)) { - return -1; - } - - node = node->next; - } - } - - return 0; -} - -static int populate_dir(int dir_fd, fstree_t *fs, tree_node_t *root, - dev_t devstart, unsigned int flags) -{ - char *extra = NULL; - struct dirent *ent; - struct stat sb; - tree_node_t *n; - int childfd; - DIR *dir; - - dir = fdopendir(dir_fd); - if (dir == NULL) { - perror("fdopendir"); - close(dir_fd); - return -1; - } - - /* XXX: fdopendir can dup and close dir_fd internally - and still be compliant with the spec. */ - dir_fd = dirfd(dir); - - for (;;) { - errno = 0; - ent = readdir(dir); - - if (ent == NULL) { - if (errno) { - perror("readdir"); - goto fail; - } - break; - } - - if (!strcmp(ent->d_name, "..") || !strcmp(ent->d_name, ".")) - continue; - - if (fstatat(dir_fd, ent->d_name, &sb, AT_SYMLINK_NOFOLLOW)) { - perror(ent->d_name); - goto fail; - } - - if ((flags & DIR_SCAN_ONE_FILESYSTEM) && sb.st_dev != devstart) - continue; - - if (S_ISLNK(sb.st_mode)) { - extra = calloc(1, sb.st_size + 1); - if (extra == NULL) - goto fail_rdlink; - - if (readlinkat(dir_fd, ent->d_name, - extra, sb.st_size) < 0) { - goto fail_rdlink; - } - - extra[sb.st_size] = '\0'; - } - - if (!(flags & DIR_SCAN_KEEP_TIME)) - sb.st_mtime = fs->defaults.st_mtime; - - n = fstree_mknode(root, ent->d_name, strlen(ent->d_name), - extra, &sb); - if (n == NULL) { - perror("creating tree node"); - goto fail; - } - - free(extra); - extra = NULL; - - if (S_ISDIR(n->mode)) { - childfd = openat(dir_fd, n->name, O_DIRECTORY | - O_RDONLY | O_CLOEXEC); - if (childfd < 0) { - perror(n->name); - goto fail; - } - - if (populate_dir(childfd, fs, n, devstart, flags)) - goto fail; - } - } - - closedir(dir); - return 0; -fail_rdlink: - perror("readlink"); -fail: - closedir(dir); - free(extra); - return -1; -} - -int fstree_from_dir(fstree_t *fs, const char *path, void *selinux_handle, - sqfs_xattr_writer_t *xwr, unsigned int flags) -{ - struct stat sb; - int fd; - - fd = open(path, O_DIRECTORY | O_RDONLY | O_CLOEXEC); - if (fd < 0) { - perror(path); - return -1; - } - - if (fstat(fd, &sb)) { - perror(path); - close(fd); - return -1; - } - - if (populate_dir(fd, fs, fs->root, sb.st_dev, flags)) - return -1; - - if (xwr != NULL && (selinux_handle != NULL || - (flags & DIR_SCAN_READ_XATTR))) { - if (xattr_xcan_dfs(path, selinux_handle, xwr, flags, fs->root)) - return -1; - } - - return 0; -} -#endif diff --git a/mkfs/mkfs.c b/mkfs/mkfs.c deleted file mode 100644 index 9ffbb94..0000000 --- a/mkfs/mkfs.c +++ /dev/null @@ -1,216 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * mkfs.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#include "mkfs.h" - -static int set_working_dir(options_t *opt) -{ - const char *ptr; - char *path; - - if (opt->packdir != NULL) { - if (chdir(opt->packdir)) { - perror(opt->packdir); - return -1; - } - return 0; - } - - ptr = strrchr(opt->infile, '/'); - if (ptr == NULL) - return 0; - - path = strndup(opt->infile, ptr - opt->infile); - if (path == NULL) { - perror("constructing input directory path"); - return -1; - } - - if (chdir(path)) { - perror(path); - free(path); - return -1; - } - - free(path); - return 0; -} - -static int pack_files(sqfs_block_processor_t *data, fstree_t *fs, - options_t *opt) -{ - sqfs_inode_generic_t **inode_ptr; - sqfs_u64 filesize; - sqfs_file_t *file; - tree_node_t *node; - const char *path; - char *node_path; - file_info_t *fi; - int flags; - int ret; - - if (set_working_dir(opt)) - return -1; - - for (fi = fs->files; fi != NULL; fi = fi->next) { - if (fi->input_file == NULL) { - node = container_of(fi, tree_node_t, data.file); - - node_path = fstree_get_path(node); - if (node_path == NULL) { - perror("reconstructing file path"); - return -1; - } - - ret = canonicalize_name(node_path); - assert(ret == 0); - - path = node_path; - } else { - node_path = NULL; - path = fi->input_file; - } - - if (!opt->cfg.quiet) - printf("packing %s\n", path); - - file = sqfs_open_file(path, SQFS_FILE_OPEN_READ_ONLY); - if (file == NULL) { - perror(path); - free(node_path); - return -1; - } - - flags = 0; - filesize = file->get_size(file); - - if (opt->no_tail_packing && filesize > opt->cfg.block_size) - flags |= SQFS_BLK_DONT_FRAGMENT; - - inode_ptr = (sqfs_inode_generic_t **)&fi->user_ptr; - - ret = write_data_from_file(path, data, inode_ptr, file, flags); - sqfs_destroy(file); - free(node_path); - - if (ret) - return -1; - } - - return 0; -} - -static int relabel_tree_dfs(const char *filename, sqfs_xattr_writer_t *xwr, - tree_node_t *n, void *selinux_handle) -{ - char *path = fstree_get_path(n); - int ret; - - if (path == NULL) { - perror("getting absolute node path for SELinux relabeling"); - return -1; - } - - ret = sqfs_xattr_writer_begin(xwr); - if (ret) { - sqfs_perror(filename, "recording xattr key-value pairs", ret); - return -1; - } - - if (selinux_relable_node(selinux_handle, xwr, n, path)) { - free(path); - return -1; - } - - ret = sqfs_xattr_writer_end(xwr, &n->xattr_idx); - if (ret) { - sqfs_perror(filename, "flushing completed key-value pairs", - ret); - return -1; - } - - free(path); - - if (S_ISDIR(n->mode)) { - for (n = n->data.dir.children; n != NULL; n = n->next) { - if (relabel_tree_dfs(filename, xwr, n, selinux_handle)) - return -1; - } - } - - return 0; -} - -static int read_fstree(fstree_t *fs, options_t *opt, sqfs_xattr_writer_t *xwr, - void *selinux_handle) -{ - FILE *fp; - int ret; - - if (opt->infile == NULL) { - return fstree_from_dir(fs, opt->packdir, selinux_handle, - xwr, opt->dirscan_flags); - } - - fp = fopen(opt->infile, "rb"); - if (fp == NULL) { - perror(opt->infile); - return -1; - } - - ret = fstree_from_file(fs, opt->infile, fp); - fclose(fp); - - if (ret == 0 && selinux_handle != NULL) - ret = relabel_tree_dfs(opt->cfg.filename, xwr, - fs->root, selinux_handle); - - return ret; -} - -int main(int argc, char **argv) -{ - int status = EXIT_FAILURE; - void *sehnd = NULL; - sqfs_writer_t sqfs; - options_t opt; - - process_command_line(&opt, argc, argv); - - if (sqfs_writer_init(&sqfs, &opt.cfg)) - return EXIT_FAILURE; - - if (opt.selinux != NULL) { - sehnd = selinux_open_context_file(opt.selinux); - if (sehnd == NULL) - goto out; - } - - if (read_fstree(&sqfs.fs, &opt, sqfs.xwr, sehnd)) { - if (sehnd != NULL) - selinux_close_context_file(sehnd); - goto out; - } - - if (sehnd != NULL) { - selinux_close_context_file(sehnd); - sehnd = NULL; - } - - if (fstree_post_process(&sqfs.fs)) - goto out; - - if (pack_files(sqfs.data, &sqfs.fs, &opt)) - goto out; - - if (sqfs_writer_finish(&sqfs, &opt.cfg)) - goto out; - - status = EXIT_SUCCESS; -out: - sqfs_writer_cleanup(&sqfs, status); - return status; -} diff --git a/mkfs/mkfs.h b/mkfs/mkfs.h deleted file mode 100644 index 1b767aa..0000000 --- a/mkfs/mkfs.h +++ /dev/null @@ -1,72 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * mkfs.h - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#ifndef MKFS_H -#define MKFS_H - -#include "config.h" - -#include "common.h" -#include "fstree.h" - -#ifdef HAVE_SYS_XATTR_H -#include <sys/xattr.h> - -#if defined(__APPLE__) && defined(__MACH__) -#define llistxattr(path, list, size) \ - listxattr(path, list, size, XATTR_NOFOLLOW) - -#define lgetxattr(path, name, value, size) \ - getxattr(path, name, value, size, 0, XATTR_NOFOLLOW) -#endif -#endif - -#ifdef WITH_SELINUX -#include <selinux/selinux.h> -#include <selinux/label.h> -#endif - -#include <getopt.h> -#include <assert.h> -#include <stdlib.h> -#include <string.h> -#include <limits.h> -#include <dirent.h> -#include <stdio.h> -#include <errno.h> -#include <ctype.h> - -typedef struct { - sqfs_writer_cfg_t cfg; - unsigned int dirscan_flags; - const char *infile; - const char *packdir; - const char *selinux; - bool no_tail_packing; -} options_t; - -enum { - DIR_SCAN_KEEP_TIME = 0x01, - - DIR_SCAN_ONE_FILESYSTEM = 0x02, - - DIR_SCAN_READ_XATTR = 0x04, -}; - -void process_command_line(options_t *opt, int argc, char **argv); - -int fstree_from_dir(fstree_t *fs, const char *path, void *selinux_handle, - sqfs_xattr_writer_t *xwr, unsigned int flags); - - -void *selinux_open_context_file(const char *filename); - -int selinux_relable_node(void *sehnd, sqfs_xattr_writer_t *xwr, - tree_node_t *node, const char *path); - -void selinux_close_context_file(void *sehnd); - -#endif /* MKFS_H */ diff --git a/mkfs/options.c b/mkfs/options.c deleted file mode 100644 index 2369787..0000000 --- a/mkfs/options.c +++ /dev/null @@ -1,289 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * options.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#include "mkfs.h" - -static struct option long_opts[] = { - { "compressor", required_argument, NULL, 'c' }, - { "block-size", required_argument, NULL, 'b' }, - { "dev-block-size", required_argument, NULL, 'B' }, - { "defaults", required_argument, NULL, 'd' }, - { "comp-extra", required_argument, NULL, 'X' }, - { "pack-file", required_argument, NULL, 'F' }, - { "pack-dir", required_argument, NULL, 'D' }, - { "num-jobs", required_argument, NULL, 'j' }, - { "queue-backlog", required_argument, NULL, 'Q' }, - { "keep-time", no_argument, NULL, 'k' }, -#ifdef HAVE_SYS_XATTR_H - { "keep-xattr", no_argument, NULL, 'x' }, -#endif - { "one-file-system", no_argument, NULL, 'o' }, - { "exportable", no_argument, NULL, 'e' }, - { "no-tail-packing", no_argument, NULL, 'T' }, - { "force", no_argument, NULL, 'f' }, - { "quiet", no_argument, NULL, 'q' }, -#ifdef WITH_SELINUX - { "selinux", required_argument, NULL, 's' }, -#endif - { "version", no_argument, NULL, 'V' }, - { "help", no_argument, NULL, 'h' }, - { NULL, 0, NULL, 0 }, -}; - -static const char *short_opts = "F:D:X:c:b:B:d:j:Q:kxoefqThV" -#ifdef WITH_SELINUX -"s:" -#endif -#ifdef HAVE_SYS_XATTR_H -"x" -#endif -; - -static const char *help_string = -"Usage: gensquashfs [OPTIONS...] <squashfs-file>\n" -"\n" -"Possible options:\n" -"\n" -" --pack-file, -F <file> Use a `gen_init_cpio` style description file.\n" -" The file format is specified below.\n" -" If --pack-dir is used, input file paths are\n" -" relative to the pack directory, otherwise\n" -" they are relative to the directory the pack\n" -" file is in.\n" -" --pack-dir, -D <directory> If --pack-file is used, this is the root path\n" -" relative to which to read files. If no pack\n" -" file is specified, pack the contents of the\n" -" given directory into a SquashFS image. The\n" -" directory becomes the root of the file\n" -" system.\n" -"\n" -" --compressor, -c <name> Select the compressor to use.\n" -" A list of available compressors is below.\n" -" --comp-extra, -X <options> A comma separated list of extra options for\n" -" the selected compressor. Specify 'help' to\n" -" get a list of available options.\n" -" --num-jobs, -j <count> Number of compressor jobs to create.\n" -" --queue-backlog, -Q <count> Maximum number of data blocks in the thread\n" -" worker queue before the packer starts waiting\n" -" for the block processors to catch up.\n" -" Defaults to 10 times the number of jobs.\n" -" --block-size, -b <size> Block size to use for Squashfs image.\n" -" Defaults to %u.\n" -" --dev-block-size, -B <size> Device block size to padd the image to.\n" -" Defaults to %u.\n" -" --defaults, -d <options> A comma separated list of default values for\n" -" implicitly created directories.\n" -"\n" -" Possible options:\n" -" uid=<value> 0 if not set.\n" -" gid=<value> 0 if not set.\n" -" mode=<value> 0755 if not set.\n" -" mtime=<value> 0 if not set.\n" -"\n" -#ifdef WITH_SELINUX -" --selinux, -s <file> Specify an SELinux label file to get context\n" -" attributes from.\n" -#endif -" --keep-time, -k When using --pack-dir only, use the timestamps\n" -" from the input files instead of setting\n" -" defaults on all input paths.\n" -" --keep-xattr, -x When using --pack-dir only, read and pack the\n" -" extended attributes from the input files.\n" -" --one-file-system, -o When using --pack-dir only, stay in local file\n" -" system and do not cross mount points.\n" -" --exportable, -e Generate an export table for NFS support.\n" -" --no-tail-packing, -T Do not perform tail end packing on files that\n" -" are larger than block size.\n" -" --force, -f Overwrite the output file if it exists.\n" -" --quiet, -q Do not print out progress reports.\n" -" --help, -h Print help text and exit.\n" -" --version, -V Print version information and exit.\n" -"\n"; - -const char *help_details = -"When using the pack file option, the given file is expected to contain\n" -"newline separated entries that describe the files to be included in the\n" -"SquashFS image. The following entry types can be specified:\n" -"\n" -"# a comment\n" -"file <path> <mode> <uid> <gid> [<location>]\n" -"dir <path> <mode> <uid> <gid>\n" -"nod <path> <mode> <uid> <gid> <dev_type> <maj> <min>\n" -"slink <path> <mode> <uid> <gid> <target>\n" -"link <path> <dummy> <dummy> <dummy> <target>\n" -"pipe <path> <mode> <uid> <gid>\n" -"sock <path> <mode> <uid> <gid>\n" -"\n" -"<path> Absolute path of the entry in the image. Can be put in quotes\n" -" if some components contain spaces.\n" -"<location> If given, location of the input file. Either absolute or relative\n" -" to the description file. If omitted, the image path is used,\n" -" relative to the description file.\n" -"<target> Symlink or hardlink target.\n" -"<mode> Mode/permissions of the entry.\n" -"<uid> Numeric user id.\n" -"<gid> Numeric group id.\n" -"<dev_type> Device type (b=block, c=character).\n" -"<maj> Major number of a device special file.\n" -"<min> Minor number of a device special file.\n" -"\n" -"Example:\n" -" # A simple squashfs image\n" -" dir /dev 0755 0 0\n" -" nod /dev/console 0600 0 0 c 5 1\n" -" dir /root 0700 0 0\n" -" dir /sbin 0755 0 0\n" -" \n" -" # Add a file. Input is relative to listing or pack dir.\n" -" file /sbin/init 0755 0 0 ../init/sbin/init\n" -" \n" -" # Read bin/bash, relative to listing or pack dir.\n" -" # Implicitly create /bin.\n" -" file /bin/bash 0755 0 0\n" -" \n" -" # file name with a space in it.\n" -" file \"/opt/my app/\\\"special\\\"/data\" 0600 0 0\n" -"\n\n"; - -void process_command_line(options_t *opt, int argc, char **argv) -{ - bool have_compressor; - int i, ret; - - memset(opt, 0, sizeof(*opt)); - sqfs_writer_cfg_init(&opt->cfg); - - for (;;) { - i = getopt_long(argc, argv, short_opts, long_opts, NULL); - if (i == -1) - break; - - switch (i) { - case 'T': - opt->no_tail_packing = true; - break; - case 'c': - have_compressor = true; - ret = sqfs_compressor_id_from_name(optarg); - - if (ret < 0) { - have_compressor = false; -#ifdef WITH_LZO - if (opt->cfg.comp_id == SQFS_COMP_LZO) - have_compressor = true; -#endif - } - - if (!have_compressor) { - fprintf(stderr, "Unsupported compressor '%s'\n", - optarg); - exit(EXIT_FAILURE); - } - - opt->cfg.comp_id = ret; - break; - case 'b': - if (parse_size("Block size", &opt->cfg.block_size, - optarg, 0)) { - exit(EXIT_FAILURE); - } - break; - case 'j': - opt->cfg.num_jobs = strtol(optarg, NULL, 0); - break; - case 'Q': - opt->cfg.max_backlog = strtol(optarg, NULL, 0); - break; - case 'B': - if (parse_size("Device block size", - &opt->cfg.devblksize, optarg, 0)) { - exit(EXIT_FAILURE); - } - if (opt->cfg.devblksize < 1024) { - fputs("Device block size must be at " - "least 1024\n", stderr); - exit(EXIT_FAILURE); - } - break; - case 'd': - opt->cfg.fs_defaults = optarg; - break; - case 'k': - opt->dirscan_flags |= DIR_SCAN_KEEP_TIME; - break; -#ifdef HAVE_SYS_XATTR_H - case 'x': - opt->dirscan_flags |= DIR_SCAN_READ_XATTR; - break; -#endif - case 'o': - opt->dirscan_flags |= DIR_SCAN_ONE_FILESYSTEM; - break; - case 'e': - opt->cfg.exportable = true; - break; - case 'f': - opt->cfg.outmode |= SQFS_FILE_OPEN_OVERWRITE; - break; - case 'q': - opt->cfg.quiet = true; - break; - case 'X': - opt->cfg.comp_extra = optarg; - break; - case 'F': - opt->infile = optarg; - break; - case 'D': - opt->packdir = optarg; - break; -#ifdef WITH_SELINUX - case 's': - opt->selinux = optarg; - break; -#endif - case 'h': - printf(help_string, - SQFS_DEFAULT_BLOCK_SIZE, SQFS_DEVBLK_SIZE); - fputs(help_details, stdout); - compressor_print_available(); - exit(EXIT_SUCCESS); - case 'V': - print_version("gensquashfs"); - exit(EXIT_SUCCESS); - default: - goto fail_arg; - } - } - - if (opt->cfg.num_jobs < 1) - opt->cfg.num_jobs = 1; - - if (opt->cfg.max_backlog < 1) - opt->cfg.max_backlog = 10 * opt->cfg.num_jobs; - - if (opt->cfg.comp_extra != NULL && - strcmp(opt->cfg.comp_extra, "help") == 0) { - compressor_print_help(opt->cfg.comp_id); - exit(EXIT_SUCCESS); - } - - if (opt->infile == NULL && opt->packdir == NULL) { - fputs("No input file or directory specified.\n", stderr); - goto fail_arg; - } - - if (optind >= argc) { - fputs("No output file specified.\n", stderr); - goto fail_arg; - } - - opt->cfg.filename = argv[optind++]; - return; -fail_arg: - fputs("Try `gensquashfs --help' for more information.\n", stderr); - exit(EXIT_FAILURE); -} diff --git a/mkfs/selinux.c b/mkfs/selinux.c deleted file mode 100644 index 678723b..0000000 --- a/mkfs/selinux.c +++ /dev/null @@ -1,78 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * selinux.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#include "mkfs.h" - -#define XATTR_NAME_SELINUX "security.selinux" -#define XATTR_VALUE_SELINUX "system_u:object_r:unlabeled_t:s0" - -#ifdef WITH_SELINUX -int selinux_relable_node(void *sehnd, sqfs_xattr_writer_t *xwr, - tree_node_t *node, const char *path) -{ - char *context = NULL; - int ret; - - if (selabel_lookup(sehnd, &context, path, node->mode) < 0) { - context = strdup(XATTR_VALUE_SELINUX); - if (context == NULL) - goto fail; - } - - ret = sqfs_xattr_writer_add(xwr, XATTR_NAME_SELINUX, - context, strlen(context)); - free(context); - - if (ret) - sqfs_perror(node->name, "storing SELinux xattr", ret); - - return ret; -fail: - perror("relabeling files"); - return -1; -} - -void *selinux_open_context_file(const char *filename) -{ - struct selabel_handle *sehnd; - struct selinux_opt seopts[] = { - { SELABEL_OPT_PATH, filename }, - }; - - sehnd = selabel_open(SELABEL_CTX_FILE, seopts, 1); - if (sehnd == NULL) - perror(filename); - - return sehnd; -} - -void selinux_close_context_file(void *sehnd) -{ - selabel_close(sehnd); -} -#else -int selinux_relable_node(void *sehnd, sqfs_xattr_writer_t *xwr, - tree_node_t *node, const char *path) -{ - (void)sehnd; (void)xwr; (void)node; (void)path; - fputs("Built without SELinux support, cannot add SELinux labels\n", - stderr); - return -1; -} - -void *selinux_open_context_file(const char *filename) -{ - (void)filename; - fputs("Built without SELinux support, cannot open contexts file\n", - stderr); - return NULL; -} - -void selinux_close_context_file(void *sehnd) -{ - (void)sehnd; -} -#endif |