int dissect_image(
int fd,
- const char *original_path,
+ const char *image_path,
const VeritySettings *verity,
const MountOptions *mount_options,
uint64_t diskseq,
_cleanup_(blkid_free_probep) blkid_probe b = NULL;
_cleanup_free_ char *generic_node = NULL;
sd_id128_t generic_uuid = SD_ID128_NULL;
- const char *pttype = NULL, *sysname = NULL, *devname = NULL;
+ const char *pttype = NULL, *devname = NULL;
blkid_partlist pl;
int r, generic_nr = -1, n_partitions;
struct stat st;
.has_init_system = -1,
};
- r = sd_device_get_sysname(d, &sysname);
- if (r < 0)
- return log_debug_errno(r, "Failed to get device sysname: %m");
- if (original_path) {
- _cleanup_free_ char *extracted_filename = NULL, *name_stripped = NULL;
- r = path_extract_filename(original_path, &extracted_filename);
- if (r < 0)
- return r;
- r = raw_strip_suffixes(extracted_filename, &name_stripped);
- if (r < 0)
- return r;
+ if (!image_path) {
+ const char *sysname;
- free_and_replace(m->image_name, name_stripped);
- } else if (startswith(sysname, "loop")) {
- _cleanup_free_ char *extracted_filename = NULL, *name_stripped = NULL;
- const char *full_path;
+ /* If image_path is not provided and the device is a loopback block device, then use the path
+ * to the backing file. Note that the backing_file reference resolves symlinks, while for
+ * sysext images we want the original path. */
- /* Note that the backing_file reference resolves symlinks, while for sysext images we want the original path */
- r = sd_device_get_sysattr_value(d, "loop/backing_file", &full_path);
+ r = sd_device_get_sysname(d, &sysname);
if (r < 0)
- log_debug_errno(r, "Failed to lookup image name via loop device backing file sysattr, ignoring: %m");
- else {
- r = path_extract_filename(full_path, &extracted_filename);
- if (r < 0)
- return r;
- r = raw_strip_suffixes(extracted_filename, &name_stripped);
+ return log_debug_errno(r, "Failed to get device sysname: %m");
+
+ if (startswith(sysname, "loop")) {
+ r = sd_device_get_sysattr_value(d, "loop/backing_file", &image_path);
if (r < 0)
- return r;
+ log_debug_errno(r, "Failed to lookup image name via loop device backing file sysattr, ignoring: %m");
}
+ }
- free_and_replace(m->image_name, name_stripped);
- } else {
- r = free_and_strdup(&m->image_name, sysname);
+ if (image_path) {
+ _cleanup_free_ char *extracted_filename = NULL, *name_stripped = NULL;
+
+ r = path_extract_filename(image_path, &extracted_filename);
+ if (r < 0)
+ return r;
+
+ r = raw_strip_suffixes(extracted_filename, &name_stripped);
if (r < 0)
return r;
+
+ if (!image_name_is_valid(name_stripped))
+ log_debug("Image name %s is not valid, ignoring.", strna(name_stripped));
+ else
+ m->image_name = TAKE_PTR(name_stripped);
}
+
r = sd_device_get_devname(d, &devname);
if (r < 0)
return log_debug_errno(r, "Failed to get device devname: %m");
- if (!image_name_is_valid(m->image_name)) {
- log_debug("Image name %s is not valid, ignoring", strempty(m->image_name));
- m->image_name = mfree(m->image_name);
- }
-
if ((!(flags & DISSECT_IMAGE_GPT_ONLY) &&
(flags & DISSECT_IMAGE_GENERIC_ROOT)) ||
(flags & DISSECT_IMAGE_NO_PARTITION_TABLE)) {
if (!name)
name = ASSERT_PTR(loop->node);
- r = dissect_loop_device(loop, name, verity, mount_options, flags, ret);
+ r = dissect_loop_device(loop, verity, mount_options, flags, ret);
switch (r) {
case -EOPNOTSUPP:
r = dissect_loop_device(
loop_device,
- src,
&verity,
options,
dissect_image_flags,
if (!verity.data_path && r == -ENOPKG)
r = dissect_loop_device(
loop_device,
- src,
&verity,
options,
dissect_image_flags | DISSECT_IMAGE_NO_PARTITION_TABLE,
const char* mount_options_from_designator(const MountOptions *options, PartitionDesignator designator);
int probe_filesystem(const char *node, char **ret_fstype);
-int dissect_image(int fd, const char *original_path, const VeritySettings *verity, const MountOptions *mount_options, uint64_t diskseq, uint64_t uevent_seqnum_not_before, usec_t timestamp_not_before, DissectImageFlags flags, DissectedImage **ret);
-static inline int dissect_loop_device(const LoopDevice *loop, const char *original_path, const VeritySettings *verity, const MountOptions *mount_options, DissectImageFlags flags, DissectedImage **ret) {
+int dissect_image(
+ int fd,
+ const char *image_path,
+ const VeritySettings *verity,
+ const MountOptions *mount_options,
+ uint64_t diskseq,
+ uint64_t uevent_seqnum_not_before,
+ usec_t timestamp_not_before,
+ DissectImageFlags flags,
+ DissectedImage **ret);
+static inline int dissect_loop_device(const LoopDevice *loop, const VeritySettings *verity, const MountOptions *mount_options, DissectImageFlags flags, DissectedImage **ret) {
assert(loop);
- return dissect_image(loop->fd, original_path, verity, mount_options, loop->diskseq, loop->uevent_seqnum_not_before, loop->timestamp_not_before, flags, ret);
+ return dissect_image(loop->fd, loop->backing_file, verity, mount_options, loop->diskseq, loop->uevent_seqnum_not_before, loop->timestamp_not_before, flags, ret);
}
int dissect_loop_device_and_warn(const char *name, const LoopDevice *loop, const VeritySettings *verity, const MountOptions *mount_options, DissectImageFlags flags, DissectedImage **ret);
_cleanup_(loop_device_unrefp) LoopDevice *loop = NULL;
_cleanup_(umount_and_rmdir_and_freep) char *mounted = NULL;
_cleanup_(dissected_image_unrefp) DissectedImage *dissected = NULL;
- _cleanup_free_ char *path = NULL;
if (now(CLOCK_MONOTONIC) >= end) {
log_notice("Time's up, exiting thread's loop");
log_notice("Acquired loop device %s, will mount on %s", loop->node, mounted);
- r = fd_get_path(fd, &path);
- if (r < 0)
- log_error_errno(r, "Failed to get path from fd: %m");
- assert_se(r >= 0);
-
- r = dissect_loop_device(loop, path, NULL, NULL, DISSECT_IMAGE_READ_ONLY, &dissected);
+ r = dissect_loop_device(loop, NULL, NULL, DISSECT_IMAGE_READ_ONLY, &dissected);
if (r < 0)
log_error_errno(r, "Failed dissect loopback device %s: %m", loop->node);
assert_se(r >= 0);
pthread_t threads[arg_n_threads];
sd_id128_t id;
- assert_se(dissect_loop_device(loop, p, NULL, NULL, 0, &dissected) >= 0);
+ assert_se(dissect_loop_device(loop, NULL, NULL, 0, &dissected) >= 0);
assert_se(dissected->partitions[PARTITION_ESP].found);
assert_se(dissected->partitions[PARTITION_ESP].node);
assert_se(make_filesystem(dissected->partitions[PARTITION_HOME].node, "ext4", "home", id, true) >= 0);
dissected = dissected_image_unref(dissected);
- assert_se(dissect_loop_device(loop, p, NULL, NULL, 0, &dissected) >= 0);
+ assert_se(dissect_loop_device(loop, NULL, NULL, 0, &dissected) >= 0);
assert_se(mkdtemp_malloc(NULL, &mounted) >= 0);