return 1;
}
-static int run(int argc, char *argv[]) {
- _cleanup_(loop_device_unrefp) LoopDevice *d = NULL;
- _cleanup_(decrypted_image_unrefp) DecryptedImage *di = NULL;
- _cleanup_(dissected_image_unrefp) DissectedImage *m = NULL;
+static int action_dissect(DissectedImage *m, LoopDevice *d) {
+ _cleanup_(table_unrefp) Table *t = NULL;
+ uint64_t size;
int r;
- log_parse_environment();
- log_open();
-
- r = parse_argv(argc, argv);
- if (r <= 0)
- return r;
-
- r = verity_metadata_load(
- arg_image, NULL,
- arg_root_hash ? NULL : &arg_root_hash,
- &arg_root_hash_size,
- arg_verity_data ? NULL : &arg_verity_data,
- arg_root_hash_sig_path || arg_root_hash_sig ? NULL : &arg_root_hash_sig_path);
- if (r < 0)
- return log_error_errno(r, "Failed to read verity artifacts for %s: %m", arg_image);
+ assert(m);
+ assert(d);
- r = loop_device_make_by_path(
- arg_image,
- (arg_flags & DISSECT_IMAGE_READ_ONLY) ? O_RDONLY : O_RDWR,
- arg_verity_data ? 0 : LO_FLAGS_PARTSCAN,
- &d);
+ r = dissected_image_acquire_metadata(m);
+ if (r == -EMEDIUMTYPE)
+ return log_error_errno(r, "Not a valid OS image, no os-release file included.");
+ if (r == -ENXIO)
+ return log_error_errno(r, "No root partition discovered.");
if (r < 0)
- return log_error_errno(r, "Failed to set up loopback device: %m");
+ return log_error_errno(r, "Failed to acquire image metadata: %m");
- if (arg_verity_data)
- arg_flags |= DISSECT_IMAGE_NO_PARTITION_TABLE; /* We only support Verity per file system,
- * hence if there's external Verity data
- * available we turn off partition table
- * support */
- r = dissect_image_and_warn(
- d->fd,
- arg_image,
- arg_root_hash,
- arg_root_hash_size,
- arg_verity_data,
- NULL,
- arg_flags,
- &m);
- if (r < 0)
- return r;
+ printf(" Name: %s\n", basename(arg_image));
- switch (arg_action) {
+ if (ioctl(d->fd, BLKGETSIZE64, &size) < 0)
+ log_debug_errno(errno, "Failed to query size of loopback device: %m");
+ else {
+ char s[FORMAT_BYTES_MAX];
+ printf(" Size: %s\n", format_bytes(s, sizeof(s), size));
+ }
- case ACTION_DISSECT: {
- _cleanup_(table_unrefp) Table *t = NULL;
- uint64_t size;
+ if (m->hostname)
+ printf(" Hostname: %s\n", m->hostname);
- r = dissected_image_acquire_metadata(m);
- if (r == -EMEDIUMTYPE)
- return log_error_errno(r, "Not a valid OS image, no os-release file included.");
- if (r == -ENXIO)
- return log_error_errno(r, "No root partition discovered.");
- if (r < 0)
- return log_error_errno(r, "Failed to acquire image metadata: %m");
+ if (!sd_id128_is_null(m->machine_id))
+ printf("Machine ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(m->machine_id));
- printf(" Name: %s\n", basename(arg_image));
+ if (!strv_isempty(m->machine_info)) {
+ char **p, **q;
- if (ioctl(d->fd, BLKGETSIZE64, &size) < 0)
- log_debug_errno(errno, "Failed to query size of loopback device: %m");
- else {
- char s[FORMAT_BYTES_MAX];
- printf(" Size: %s\n", format_bytes(s, sizeof(s), size));
- }
+ STRV_FOREACH_PAIR(p, q, m->machine_info)
+ printf("%s %s=%s\n",
+ p == m->machine_info ? "Mach. Info:" : " ",
+ *p, *q);
+ }
- if (m->hostname)
- printf(" Hostname: %s\n", m->hostname);
+ if (!strv_isempty(m->os_release)) {
+ char **p, **q;
- if (!sd_id128_is_null(m->machine_id))
- printf("Machine ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(m->machine_id));
+ STRV_FOREACH_PAIR(p, q, m->os_release)
+ printf("%s %s=%s\n",
+ p == m->os_release ? "OS Release:" : " ",
+ *p, *q);
+ }
- if (!strv_isempty(m->machine_info)) {
- char **p, **q;
+ putc('\n', stdout);
- STRV_FOREACH_PAIR(p, q, m->machine_info)
- printf("%s %s=%s\n",
- p == m->machine_info ? "Mach. Info:" : " ",
- *p, *q);
- }
-
- if (!strv_isempty(m->os_release)) {
- char **p, **q;
+ t = table_new("rw", "designator", "partition uuid", "fstype", "architecture", "verity", "node", "partno");
+ if (!t)
+ return log_oom();
- STRV_FOREACH_PAIR(p, q, m->os_release)
- printf("%s %s=%s\n",
- p == m->os_release ? "OS Release:" : " ",
- *p, *q);
- }
+ (void) table_set_empty_string(t, "-");
+ (void) table_set_align_percent(t, table_get_cell(t, 0, 7), 100);
- putc('\n', stdout);
+ for (unsigned i = 0; i < _PARTITION_DESIGNATOR_MAX; i++) {
+ DissectedPartition *p = m->partitions + i;
- t = table_new("rw", "designator", "partition uuid", "fstype", "architecture", "verity", "node", "partno");
- if (!t)
- return log_oom();
+ if (!p->found)
+ continue;
- (void) table_set_empty_string(t, "-");
- (void) table_set_align_percent(t, table_get_cell(t, 0, 7), 100);
+ r = table_add_many(
+ t,
+ TABLE_STRING, p->rw ? "rw" : "ro",
+ TABLE_STRING, partition_designator_to_string(i));
+ if (r < 0)
+ return table_log_add_error(r);
- for (unsigned i = 0; i < _PARTITION_DESIGNATOR_MAX; i++) {
- DissectedPartition *p = m->partitions + i;
+ if (sd_id128_is_null(p->uuid))
+ r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
+ else
+ r = table_add_cell(t, NULL, TABLE_UUID, &p->uuid);
+ if (r < 0)
+ return table_log_add_error(r);
- if (!p->found)
- continue;
+ r = table_add_many(
+ t,
+ TABLE_STRING, p->fstype,
+ TABLE_STRING, architecture_to_string(p->architecture));
+ if (r < 0)
+ return table_log_add_error(r);
+
+ if (arg_verity_data)
+ r = table_add_cell(t, NULL, TABLE_STRING, "external");
+ else if (dissected_image_can_do_verity(m, i))
+ r = table_add_cell(t, NULL, TABLE_STRING, yes_no(dissected_image_has_verity(m, i)));
+ else
+ r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
+ if (r < 0)
+ return table_log_add_error(r);
- r = table_add_many(
- t,
- TABLE_STRING, p->rw ? "rw" : "ro",
- TABLE_STRING, partition_designator_to_string(i));
+ if (p->partno < 0) /* no partition table, naked file system */ {
+ r = table_add_cell(t, NULL, TABLE_STRING, arg_image);
if (r < 0)
return table_log_add_error(r);
- if (sd_id128_is_null(p->uuid))
- r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
- else
- r = table_add_cell(t, NULL, TABLE_UUID, &p->uuid);
+ r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
+ } else {
+ r = table_add_cell(t, NULL, TABLE_STRING, p->node);
if (r < 0)
return table_log_add_error(r);
- r = table_add_many(
- t,
- TABLE_STRING, p->fstype,
- TABLE_STRING, architecture_to_string(p->architecture));
- if (r < 0)
- return table_log_add_error(r);
+ r = table_add_cell(t, NULL, TABLE_INT, &p->partno);
+ }
+ if (r < 0)
+ return table_log_add_error(r);
+ }
- if (arg_verity_data)
- r = table_add_cell(t, NULL, TABLE_STRING, "external");
- else if (dissected_image_can_do_verity(m, i))
- r = table_add_cell(t, NULL, TABLE_STRING, yes_no(dissected_image_has_verity(m, i)));
- else
- r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
- if (r < 0)
- return table_log_add_error(r);
+ r = table_print(t, stdout);
+ if (r < 0)
+ return log_error_errno(r, "Failed to dump table: %m");
+ return 0;
+}
- if (p->partno < 0) /* no partition table, naked file system */ {
- r = table_add_cell(t, NULL, TABLE_STRING, arg_image);
- if (r < 0)
- return table_log_add_error(r);
+static int action_mount(DissectedImage *m, LoopDevice *d) {
+ _cleanup_(decrypted_image_unrefp) DecryptedImage *di = NULL;
+ int r;
- r = table_add_cell(t, NULL, TABLE_EMPTY, NULL);
- } else {
- r = table_add_cell(t, NULL, TABLE_STRING, p->node);
- if (r < 0)
- return table_log_add_error(r);
+ assert(m);
+ assert(d);
- r = table_add_cell(t, NULL, TABLE_INT, &p->partno);
- }
- if (r < 0)
- return table_log_add_error(r);
- }
+ r = dissected_image_decrypt_interactively(
+ m, NULL,
+ arg_root_hash, arg_root_hash_size,
+ arg_verity_data,
+ arg_root_hash_sig_path, arg_root_hash_sig, arg_root_hash_sig_size,
+ arg_flags,
+ &di);
+ if (r < 0)
+ return r;
- r = table_print(t, stdout);
- if (r < 0)
- return log_error_errno(r, "Failed to dump table: %m");
+ r = dissected_image_mount(m, arg_path, UID_INVALID, arg_flags);
+ if (r == -EUCLEAN)
+ return log_error_errno(r, "File system check on image failed: %m");
+ if (r < 0)
+ return log_error_errno(r, "Failed to mount image: %m");
- break;
+ if (di) {
+ r = decrypted_image_relinquish(di);
+ if (r < 0)
+ return log_error_errno(r, "Failed to relinquish DM devices: %m");
}
- case ACTION_MOUNT:
- r = dissected_image_decrypt_interactively(
- m, NULL,
- arg_root_hash, arg_root_hash_size,
- arg_verity_data,
- arg_root_hash_sig_path, arg_root_hash_sig, arg_root_hash_sig_size,
- arg_flags,
- &di);
- if (r < 0)
- return r;
+ loop_device_relinquish(d);
+ return 0;
+}
- r = dissected_image_mount(m, arg_path, UID_INVALID, arg_flags);
- if (r == -EUCLEAN)
- return log_error_errno(r, "File system check on image failed: %m");
- if (r < 0)
- return log_error_errno(r, "Failed to mount image: %m");
+static int action_copy(DissectedImage *m, LoopDevice *d) {
+ _cleanup_(umount_and_rmdir_and_freep) char *mounted_dir = NULL;
+ _cleanup_(decrypted_image_unrefp) DecryptedImage *di = NULL;
+ _cleanup_(rmdir_and_freep) char *created_dir = NULL;
+ _cleanup_free_ char *temp = NULL;
+ int r;
- if (di) {
- r = decrypted_image_relinquish(di);
- if (r < 0)
- return log_error_errno(r, "Failed to relinquish DM devices: %m");
- }
+ assert(m);
+ assert(d);
- loop_device_relinquish(d);
- break;
+ r = dissected_image_decrypt_interactively(
+ m, NULL,
+ arg_root_hash, arg_root_hash_size,
+ arg_verity_data,
+ arg_root_hash_sig_path, arg_root_hash_sig, arg_root_hash_sig_size,
+ arg_flags,
+ &di);
+ if (r < 0)
+ return r;
- case ACTION_COPY_FROM:
- case ACTION_COPY_TO: {
- _cleanup_(umount_and_rmdir_and_freep) char *mounted_dir = NULL;
- _cleanup_(rmdir_and_freep) char *created_dir = NULL;
- _cleanup_free_ char *temp = NULL;
-
- r = dissected_image_decrypt_interactively(
- m, NULL,
- arg_root_hash, arg_root_hash_size,
- arg_verity_data,
- arg_root_hash_sig_path, arg_root_hash_sig, arg_root_hash_sig_size,
- arg_flags,
- &di);
- if (r < 0)
- return r;
+ r = detach_mount_namespace();
+ if (r < 0)
+ return log_error_errno(r, "Failed to detach mount namespace: %m");
- r = detach_mount_namespace();
- if (r < 0)
- return log_error_errno(r, "Failed to detach mount namespace: %m");
+ r = tempfn_random_child(NULL, program_invocation_short_name, &temp);
+ if (r < 0)
+ return log_error_errno(r, "Failed to generate temporary mount directory: %m");
- r = tempfn_random_child(NULL, program_invocation_short_name, &temp);
- if (r < 0)
- return log_error_errno(r, "Failed to generate temporary mount directory: %m");
+ r = mkdir_p(temp, 0700);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create mount point: %m");
- r = mkdir_p(temp, 0700);
- if (r < 0)
- return log_error_errno(r, "Failed to create mount point: %m");
+ created_dir = TAKE_PTR(temp);
+
+ r = dissected_image_mount(m, created_dir, UID_INVALID, arg_flags);
+ if (r == -EUCLEAN)
+ return log_error_errno(r, "File system check on image failed: %m");
+ if (r < 0)
+ return log_error_errno(r, "Failed to mount image: %m");
- created_dir = TAKE_PTR(temp);
+ mounted_dir = TAKE_PTR(created_dir);
- r = dissected_image_mount(m, created_dir, UID_INVALID, arg_flags);
- if (r == -EUCLEAN)
- return log_error_errno(r, "File system check on image failed: %m");
+ if (di) {
+ r = decrypted_image_relinquish(di);
if (r < 0)
- return log_error_errno(r, "Failed to mount image: %m");
+ return log_error_errno(r, "Failed to relinquish DM devices: %m");
+ }
+
+ loop_device_relinquish(d);
- mounted_dir = TAKE_PTR(created_dir);
+ if (arg_action == ACTION_COPY_FROM) {
+ _cleanup_close_ int source_fd = -1, target_fd = -1;
- if (di) {
- r = decrypted_image_relinquish(di);
+ source_fd = chase_symlinks_and_open(arg_source, mounted_dir, CHASE_PREFIX_ROOT|CHASE_WARN, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL);
+ if (source_fd < 0)
+ return log_error_errno(source_fd, "Failed to open source path '%s' in image '%s': %m", arg_source, arg_image);
+
+ /* Copying to stdout? */
+ if (streq(arg_target, "-")) {
+ r = copy_bytes(source_fd, STDOUT_FILENO, (uint64_t) -1, COPY_REFLINK);
if (r < 0)
- return log_error_errno(r, "Failed to relinquish DM devices: %m");
+ return log_error_errno(r, "Failed to copy bytes from %s in mage '%s' to stdout: %m", arg_source, arg_image);
+
+ /* When we copy to stdou we don't copy any attributes (i.e. no access mode, no ownership, no xattr, no times) */
+ return 0;
}
- loop_device_relinquish(d);
+ /* Try to copy as directory? */
+ r = copy_directory_fd(source_fd, arg_target, COPY_REFLINK|COPY_MERGE_EMPTY|COPY_SIGINT);
+ if (r >= 0)
+ return 0;
+ if (r != -ENOTDIR)
+ return log_error_errno(r, "Failed to copy %s in image '%s' to '%s': %m", arg_source, arg_image, arg_target);
+
+ r = fd_verify_regular(source_fd);
+ if (r == -EISDIR)
+ return log_error_errno(r, "Target '%s' exists already and is not a directory.", arg_target);
+ if (r < 0)
+ return log_error_errno(r, "Source path %s in image '%s' is neither regular file nor directory, refusing: %m", arg_source, arg_image);
- if (arg_action == ACTION_COPY_FROM) {
- _cleanup_close_ int source_fd = -1, target_fd = -1;
+ /* Nah, it's a plain file! */
+ target_fd = open(arg_target, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0600);
+ if (target_fd < 0)
+ return log_error_errno(errno, "Failed to create regular file at target path '%s': %m", arg_target);
- source_fd = chase_symlinks_and_open(arg_source, mounted_dir, CHASE_PREFIX_ROOT|CHASE_WARN, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL);
- if (source_fd < 0)
- return log_error_errno(source_fd, "Failed to open source path '%s' in image '%s': %m", arg_source, arg_image);
+ r = copy_bytes(source_fd, target_fd, (uint64_t) -1, COPY_REFLINK);
+ if (r < 0)
+ return log_error_errno(r, "Failed to copy bytes from %s in mage '%s' to '%s': %m", arg_source, arg_image, arg_target);
- /* Copying to stdout? */
- if (streq(arg_target, "-")) {
- r = copy_bytes(source_fd, STDOUT_FILENO, (uint64_t) -1, COPY_REFLINK);
- if (r < 0)
- return log_error_errno(r, "Failed to copy bytes from %s in mage '%s' to stdout: %m", arg_source, arg_image);
+ (void) copy_xattr(source_fd, target_fd);
+ (void) copy_access(source_fd, target_fd);
+ (void) copy_times(source_fd, target_fd, 0);
- /* When we copy to stdou we don't copy any attributes (i.e. no access mode, no ownership, no xattr, no times) */
- break;
- }
+ /* When this is a regular file we don't copy ownership! */
- /* Try to copy as directory? */
- r = copy_directory_fd(source_fd, arg_target, COPY_REFLINK|COPY_MERGE_EMPTY|COPY_SIGINT);
- if (r >= 0)
- break;
- if (r != -ENOTDIR)
- return log_error_errno(r, "Failed to copy %s in image '%s' to '%s': %m", arg_source, arg_image, arg_target);
+ } else {
+ _cleanup_close_ int source_fd = -1, target_fd = -1;
+ _cleanup_close_ int dfd = -1;
+ _cleanup_free_ char *dn = NULL;
- r = fd_verify_regular(source_fd);
- if (r == -EISDIR)
- return log_error_errno(r, "Target '%s' exists already and is not a directory.", arg_target);
- if (r < 0)
- return log_error_errno(r, "Source path %s in image '%s' is neither regular file nor directory, refusing: %m", arg_source, arg_image);
+ assert(arg_action == ACTION_COPY_TO);
+
+ dn = dirname_malloc(arg_target);
+ if (!dn)
+ return log_oom();
+
+ r = chase_symlinks(dn, mounted_dir, CHASE_PREFIX_ROOT|CHASE_WARN, NULL, &dfd);
+ if (r < 0)
+ return log_error_errno(r, "Failed to open '%s': %m", dn);
- /* Nah, it's a plain file! */
- target_fd = open(arg_target, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0600);
+ /* Are we reading from stdin? */
+ if (streq(arg_source, "-")) {
+ target_fd = openat(dfd, basename(arg_target), O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY|O_EXCL, 0644);
if (target_fd < 0)
- return log_error_errno(errno, "Failed to create regular file at target path '%s': %m", arg_target);
+ return log_error_errno(errno, "Failed to open target file '%s': %m", arg_target);
- r = copy_bytes(source_fd, target_fd, (uint64_t) -1, COPY_REFLINK);
+ r = copy_bytes(STDIN_FILENO, target_fd, (uint64_t) -1, COPY_REFLINK);
if (r < 0)
- return log_error_errno(r, "Failed to copy bytes from %s in mage '%s' to '%s': %m", arg_source, arg_image, arg_target);
+ return log_error_errno(r, "Failed to copy bytes from stdin to '%s' in image '%s': %m", arg_target, arg_image);
- (void) copy_xattr(source_fd, target_fd);
- (void) copy_access(source_fd, target_fd);
- (void) copy_times(source_fd, target_fd, 0);
+ /* When we copy from stdin we don't copy any attributes (i.e. no access mode, no ownership, no xattr, no times) */
+ return 0;
+ }
- /* When this is a regular file we don't copy ownership! */
+ source_fd = open(arg_source, O_RDONLY|O_CLOEXEC|O_NOCTTY);
+ if (source_fd < 0)
+ return log_error_errno(source_fd, "Failed to open source path '%s': %m", arg_source);
- } else {
- _cleanup_close_ int source_fd = -1, target_fd = -1;
- _cleanup_close_ int dfd = -1;
- _cleanup_free_ char *dn = NULL;
+ r = fd_verify_regular(source_fd);
+ if (r < 0) {
+ if (r != -EISDIR)
+ return log_error_errno(r, "Source '%s' is neither regular file nor directory: %m", arg_source);
- assert(arg_action == ACTION_COPY_TO);
+ /* We are looking at a directory. */
- dn = dirname_malloc(arg_target);
- if (!dn)
- return log_oom();
+ target_fd = openat(dfd, basename(arg_target), O_RDONLY|O_DIRECTORY|O_CLOEXEC);
+ if (target_fd < 0) {
+ if (errno != ENOENT)
+ return log_error_errno(errno, "Failed to open destination '%s': %m", arg_target);
- r = chase_symlinks(dn, mounted_dir, CHASE_PREFIX_ROOT|CHASE_WARN, NULL, &dfd);
+ r = copy_tree_at(source_fd, ".", dfd, basename(arg_target), UID_INVALID, GID_INVALID, COPY_REFLINK|COPY_REPLACE|COPY_SIGINT);
+ } else
+ r = copy_tree_at(source_fd, ".", target_fd, ".", UID_INVALID, GID_INVALID, COPY_REFLINK|COPY_REPLACE|COPY_SIGINT);
if (r < 0)
- return log_error_errno(r, "Failed to open '%s': %m", dn);
+ return log_error_errno(r, "Failed to copy '%s' to '%s' in image '%s': %m", arg_source, arg_target, arg_image);
- /* Are we reading from stdin? */
- if (streq(arg_source, "-")) {
- target_fd = openat(dfd, basename(arg_target), O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY|O_EXCL, 0644);
- if (target_fd < 0)
- return log_error_errno(errno, "Failed to open target file '%s': %m", arg_target);
+ return 0;
+ }
- r = copy_bytes(STDIN_FILENO, target_fd, (uint64_t) -1, COPY_REFLINK);
- if (r < 0)
- return log_error_errno(r, "Failed to copy bytes from stdin to '%s' in image '%s': %m", arg_target, arg_image);
+ /* We area looking at a regular file */
+ target_fd = openat(dfd, basename(arg_target), O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY|O_EXCL, 0600);
+ if (target_fd < 0)
+ return log_error_errno(errno, "Failed to open target file '%s': %m", arg_target);
- /* When we copy from stdin we don't copy any attributes (i.e. no access mode, no ownership, no xattr, no times) */
- break;
- }
+ r = copy_bytes(source_fd, target_fd, (uint64_t) -1, COPY_REFLINK);
+ if (r < 0)
+ return log_error_errno(r, "Failed to copy bytes from '%s' to '%s' in image '%s': %m", arg_source, arg_target, arg_image);
- source_fd = open(arg_source, O_RDONLY|O_CLOEXEC|O_NOCTTY);
- if (source_fd < 0)
- return log_error_errno(source_fd, "Failed to open source path '%s': %m", arg_source);
+ (void) copy_xattr(source_fd, target_fd);
+ (void) copy_access(source_fd, target_fd);
+ (void) copy_times(source_fd, target_fd, 0);
- r = fd_verify_regular(source_fd);
- if (r < 0) {
- if (r != -EISDIR)
- return log_error_errno(r, "Source '%s' is neither regular file nor directory: %m", arg_source);
+ /* When this is a regular file we don't copy ownership! */
+ }
- /* We are looking at a directory. */
+ return 0;
+}
- target_fd = openat(dfd, basename(arg_target), O_RDONLY|O_DIRECTORY|O_CLOEXEC);
- if (target_fd < 0) {
- if (errno != ENOENT)
- return log_error_errno(errno, "Failed to open destination '%s': %m", arg_target);
+static int run(int argc, char *argv[]) {
+ _cleanup_(dissected_image_unrefp) DissectedImage *m = NULL;
+ _cleanup_(loop_device_unrefp) LoopDevice *d = NULL;
+ int r;
- r = copy_tree_at(source_fd, ".", dfd, basename(arg_target), UID_INVALID, GID_INVALID, COPY_REFLINK|COPY_REPLACE|COPY_SIGINT);
- } else
- r = copy_tree_at(source_fd, ".", target_fd, ".", UID_INVALID, GID_INVALID, COPY_REFLINK|COPY_REPLACE|COPY_SIGINT);
- if (r < 0)
- return log_error_errno(r, "Failed to copy '%s' to '%s' in image '%s': %m", arg_source, arg_target, arg_image);
+ log_parse_environment();
+ log_open();
- break;
- }
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ return r;
- /* We area looking at a regular file */
- target_fd = openat(dfd, basename(arg_target), O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY|O_EXCL, 0600);
- if (target_fd < 0)
- return log_error_errno(errno, "Failed to open target file '%s': %m", arg_target);
+ r = verity_metadata_load(
+ arg_image, NULL,
+ arg_root_hash ? NULL : &arg_root_hash,
+ &arg_root_hash_size,
+ arg_verity_data ? NULL : &arg_verity_data,
+ arg_root_hash_sig_path || arg_root_hash_sig ? NULL : &arg_root_hash_sig_path);
+ if (r < 0)
+ return log_error_errno(r, "Failed to read verity artifacts for %s: %m", arg_image);
- r = copy_bytes(source_fd, target_fd, (uint64_t) -1, COPY_REFLINK);
- if (r < 0)
- return log_error_errno(r, "Failed to copy bytes from '%s' to '%s' in image '%s': %m", arg_source, arg_target, arg_image);
+ r = loop_device_make_by_path(
+ arg_image,
+ (arg_flags & DISSECT_IMAGE_READ_ONLY) ? O_RDONLY : O_RDWR,
+ arg_verity_data ? 0 : LO_FLAGS_PARTSCAN,
+ &d);
+ if (r < 0)
+ return log_error_errno(r, "Failed to set up loopback device: %m");
- (void) copy_xattr(source_fd, target_fd);
- (void) copy_access(source_fd, target_fd);
- (void) copy_times(source_fd, target_fd, 0);
+ if (arg_verity_data)
+ arg_flags |= DISSECT_IMAGE_NO_PARTITION_TABLE; /* We only support Verity per file system,
+ * hence if there's external Verity data
+ * available we turn off partition table
+ * support */
+ r = dissect_image_and_warn(
+ d->fd,
+ arg_image,
+ arg_root_hash,
+ arg_root_hash_size,
+ arg_verity_data,
+ NULL,
+ arg_flags,
+ &m);
+ if (r < 0)
+ return r;
- /* When this is a regular file we don't copy ownership! */
- }
+ switch (arg_action) {
+ case ACTION_DISSECT:
+ r = action_dissect(m, d);
+ break;
+
+ case ACTION_MOUNT:
+ r = action_mount(m, d);
+ break;
+
+ case ACTION_COPY_FROM:
+ case ACTION_COPY_TO:
+ r = action_copy(m, d);
break;
- }
default:
assert_not_reached("Unknown action.");
}
- return 0;
+ return r;
}
DEFINE_MAIN_FUNCTION(run);
projects / thirdparty / systemd.git / commitdiff
