#include <sys/statfs.h>
#include <blkid/blkid.h>
-#ifdef HAVE_LINUX_BTRFS_H
-#include <linux/btrfs.h>
-#endif
-
#include "sd-id128.h"
#include "libudev.h"
#include "path-util.h"
#include "fileio.h"
#include "efivars.h"
#include "blkid-util.h"
+#include "btrfs-util.h"
static const char *arg_dest = "/tmp";
static bool arg_enabled = true;
return log_oom();
f = fopen(unit, "wxe");
- if (!f) {
- log_error("Failed to create unit file %s: %m", unit);
- return -errno;
- }
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
fprintf(f,
"# Automatically generated by systemd-gpt-auto-generator\n\n"
path);
fflush(f);
- if (ferror(f)) {
- log_error("Failed to write unit file %s: %m", unit);
- return -errno;
- }
+ if (ferror(f))
+ return log_error_errno(errno, "Failed to write unit file %s: %m", unit);
lnk = strjoin(arg_dest, "/" SPECIAL_SWAP_TARGET ".wants/", name, NULL);
if (!lnk)
return log_oom();
mkdir_parents_label(lnk, 0755);
- if (symlink(unit, lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- return -errno;
- }
+ if (symlink(unit, lnk) < 0)
+ return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
return 0;
}
-static int add_cryptsetup(const char *id, const char *what, char **device) {
+static int add_cryptsetup(const char *id, const char *what, bool rw, char **device) {
_cleanup_free_ char *e = NULL, *n = NULL, *p = NULL, *d = NULL, *to = NULL;
_cleanup_fclose_ FILE *f = NULL;
char *from, *ret;
return log_oom();
p = strjoin(arg_dest, "/", n, NULL);
- if (!n)
+ if (!p)
return log_oom();
f = fopen(p, "wxe");
- if (!f) {
- log_error("Failed to create unit file %s: %m", p);
- return -errno;
- }
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m", p);
fprintf(f,
"# Automatically generated by systemd-gpt-auto-generator\n\n"
"Before=umount.target cryptsetup.target\n"
"After=%s\n"
"IgnoreOnIsolate=true\n"
- "After=systemd-readahead-collect.service systemd-readahead-replay.service\n\n"
"[Service]\n"
"Type=oneshot\n"
"RemainAfterExit=yes\n"
"TimeoutSec=0\n" /* the binary handles timeouts anyway */
- "ExecStart=" SYSTEMD_CRYPTSETUP_PATH " attach '%s' '%s'\n"
+ "ExecStart=" SYSTEMD_CRYPTSETUP_PATH " attach '%s' '%s' '' '%s'\n"
"ExecStop=" SYSTEMD_CRYPTSETUP_PATH " detach '%s'\n",
d, d,
- id, what,
+ id, what, rw ? "" : "read-only",
id);
fflush(f);
- if (ferror(f)) {
- log_error("Failed to write file %s: %m", p);
- return -errno;
- }
+ if (ferror(f))
+ return log_error_errno(errno, "Failed to write file %s: %m", p);
- from = strappenda("../", n);
+ from = strjoina("../", n);
to = strjoin(arg_dest, "/", d, ".wants/", n, NULL);
if (!to)
return log_oom();
mkdir_parents_label(to, 0755);
- if (symlink(from, to) < 0) {
- log_error("Failed to create symlink %s: %m", to);
- return -errno;
- }
+ if (symlink(from, to) < 0)
+ return log_error_errno(errno, "Failed to create symlink %s: %m", to);
free(to);
to = strjoin(arg_dest, "/cryptsetup.target.requires/", n, NULL);
return log_oom();
mkdir_parents_label(to, 0755);
- if (symlink(from, to) < 0) {
- log_error("Failed to create symlink %s: %m", to);
- return -errno;
- }
+ if (symlink(from, to) < 0)
+ return log_error_errno(errno, "Failed to create symlink %s: %m", to);
free(to);
to = strjoin(arg_dest, "/dev-mapper-", e, ".device.requires/", n, NULL);
return log_oom();
mkdir_parents_label(to, 0755);
- if (symlink(from, to) < 0) {
- log_error("Failed to create symlink %s: %m", to);
- return -errno;
- }
+ if (symlink(from, to) < 0)
+ return log_error_errno(errno, "Failed to create symlink %s: %m", to);
free(p);
p = strjoin(arg_dest, "/dev-mapper-", e, ".device.d/50-job-timeout-sec-0.conf", NULL);
"# Automatically generated by systemd-gpt-auto-generator\n\n"
"[Unit]\n"
"JobTimeoutSec=0\n"); /* the binary handles timeouts anyway */
- if (r < 0) {
- log_error("Failed to write device drop-in: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to write device drop-in: %m");
ret = strappend("/dev/mapper/", id);
if (!ret)
const char *what,
const char *where,
const char *fstype,
- const char *options,
+ bool rw,
const char *description,
const char *post) {
if (streq_ptr(fstype, "crypto_LUKS")) {
- r = add_cryptsetup(id, what, &crypto_what);
+ r = add_cryptsetup(id, what, rw, &crypto_what);
if (r < 0)
return r;
return log_oom();
f = fopen(p, "wxe");
- if (!f) {
- log_error("Failed to create unit file %s: %m", unit);
- return -errno;
- }
+ if (!f)
+ return log_error_errno(errno, "Failed to create unit file %s: %m", unit);
fprintf(f,
"# Automatically generated by systemd-gpt-auto-generator\n\n"
if (fstype)
fprintf(f, "Type=%s\n", fstype);
- if (options)
- fprintf(f, "Options=%s\n", options);
+ fprintf(f, "Options=%s\n", rw ? "rw" : "ro");
fflush(f);
- if (ferror(f)) {
- log_error("Failed to write unit file %s: %m", p);
- return -errno;
- }
+ if (ferror(f))
+ return log_error_errno(errno, "Failed to write unit file %s: %m", p);
if (post) {
lnk = strjoin(arg_dest, "/", post, ".requires/", unit, NULL);
return log_oom();
mkdir_parents_label(lnk, 0755);
- if (symlink(p, lnk) < 0) {
- log_error("Failed to create symlink %s: %m", lnk);
- return -errno;
- }
+ if (symlink(p, lnk) < 0)
+ return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
}
return 0;
const char *id,
const char *what,
const char *where,
+ bool rw,
const char *description,
const char *post) {
if (!b) {
if (errno == 0)
return log_oom();
- log_error("Failed to allocate prober: %m");
+ log_error_errno(errno, "Failed to allocate prober: %m");
return -errno;
}
else if (r != 0) {
if (errno == 0)
errno = EIO;
- log_error("Failed to probe %s: %m", what);
+ log_error_errno(errno, "Failed to probe %s: %m", what);
return -errno;
}
what,
where,
fstype,
- NULL,
+ rw,
description,
post);
}
struct udev_device *parent = NULL;
const char *node, *pttype, *devtype;
int home_nr = -1, srv_nr = -1;
+ bool home_rw = true, srv_rw = true;
blkid_partlist pl;
int r, k;
dev_t pn;
return log_oom();
parent = udev_device_get_parent(d);
- if (!parent)
+ if (!parent) {
+ log_debug("Not a partitioned device, ignoring.");
return 0;
+ }
/* Does it have a devtype? */
devtype = udev_device_get_devtype(parent);
- if (!devtype)
+ if (!devtype) {
+ log_debug("Parent doesn't have a device type, ignoring.");
return 0;
+ }
/* Is this a disk or a partition? We only care for disks... */
- if (!streq(devtype, "disk"))
+ if (!streq(devtype, "disk")) {
+ log_debug("Parent isn't a raw disk, ignoring.");
return 0;
+ }
/* Does it have a device node? */
node = udev_device_get_devnode(parent);
- if (!node)
+ if (!node) {
+ log_debug("Parent device does not have device node, ignoring.");
return 0;
+ }
log_debug("Root device %s.", node);
if (errno == 0)
return log_oom();
- log_error("Failed allocate prober: %m");
+ log_error_errno(errno, "Failed allocate prober: %m");
return -errno;
}
- blkid_probe_enable_superblocks(b, 1);
- blkid_probe_set_superblocks_flags(b, BLKID_SUBLKS_TYPE);
blkid_probe_enable_partitions(b, 1);
blkid_probe_set_partitions_flags(b, BLKID_PARTS_ENTRY_DETAILS);
else if (r != 0) {
if (errno == 0)
errno = EIO;
- log_error("Failed to probe %s: %m", node);
+ log_error_errno(errno, "Failed to probe %s: %m", node);
return -errno;
}
if (r != 0) {
if (errno == 0)
errno = EIO;
- log_error("Failed to determine partition table type of %s: %m", node);
+ log_error_errno(errno, "Failed to determine partition table type of %s: %m", node);
return -errno;
}
/* We only do this all for GPT... */
- if (!streq_ptr(pttype, "gpt"))
+ if (!streq_ptr(pttype, "gpt")) {
+ log_debug("Not a GPT partition table, ignoring.");
return 0;
+ }
errno = 0;
pl = blkid_probe_get_partitions(b);
if (errno == 0)
return log_oom();
- log_error("Failed to list partitions of %s: %m", node);
+ log_error_errno(errno, "Failed to list partitions of %s: %m", node);
return -errno;
}
return log_oom();
r = udev_enumerate_scan_devices(e);
- if (r < 0) {
- log_error("Failed to enumerate partitions on %s: %s", node, strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Failed to enumerate partitions on %s: %m", node);
first = udev_enumerate_get_list_entry(e);
udev_list_entry_foreach(item, first) {
blkid_partition pp;
dev_t qn;
int nr;
+ unsigned long long flags;
q = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item));
if (!q)
if (!pp)
continue;
+ flags = blkid_partition_get_flags(pp);
+
+ /* Ignore partitions that are not marked for automatic
+ * mounting on discovery */
+ if (flags & GPT_FLAG_NO_AUTO)
+ continue;
+
nr = blkid_partition_get_partno(pp);
if (nr < 0)
continue;
if (sd_id128_equal(type_id, GPT_SWAP)) {
+ if (flags & GPT_FLAG_READ_ONLY) {
+ log_debug("%s marked as read-only swap partition, which is bogus, ignoring.", subnode);
+ continue;
+ }
+
k = add_swap(subnode);
if (k < 0)
r = k;
continue;
home_nr = nr;
+ home_rw = !(flags & GPT_FLAG_READ_ONLY),
free(home);
home = strdup(subnode);
continue;
srv_nr = nr;
+ srv_rw = !(flags & GPT_FLAG_READ_ONLY),
free(srv);
srv = strdup(node);
}
if (home) {
- k = probe_and_add_mount("home", home, "/home", "Home Partition", SPECIAL_LOCAL_FS_TARGET);
+ k = probe_and_add_mount("home", home, "/home", home_rw, "Home Partition", SPECIAL_LOCAL_FS_TARGET);
if (k < 0)
r = k;
}
if (srv) {
- k = probe_and_add_mount("srv", srv, "/srv", "Server Data Partition", SPECIAL_LOCAL_FS_TARGET);
+ k = probe_and_add_mount("srv", srv, "/srv", srv_rw, "Server Data Partition", SPECIAL_LOCAL_FS_TARGET);
if (k < 0)
r = k;
}
return r;
}
-static int get_btrfs_block_device(const char *path, dev_t *dev) {
- struct btrfs_ioctl_fs_info_args fsi = {};
- _cleanup_close_ int fd = -1;
- uint64_t id;
-
- assert(path);
- assert(dev);
-
- fd = open(path, O_DIRECTORY|O_CLOEXEC);
- if (fd < 0)
- return -errno;
-
- if (ioctl(fd, BTRFS_IOC_FS_INFO, &fsi) < 0)
- return -errno;
-
- /* We won't do this for btrfs RAID */
- if (fsi.num_devices != 1)
- return 0;
-
- for (id = 1; id <= fsi.max_id; id++) {
- struct btrfs_ioctl_dev_info_args di = {
- .devid = id,
- };
- struct stat st;
-
- if (ioctl(fd, BTRFS_IOC_DEV_INFO, &di) < 0) {
- if (errno == ENODEV)
- continue;
-
- return -errno;
- }
-
- if (stat((char*) di.path, &st) < 0)
- return -errno;
-
- if (!S_ISBLK(st.st_mode))
- return -ENODEV;
-
- if (major(st.st_rdev) == 0)
- return -ENODEV;
-
- *dev = st.st_rdev;
- return 1;
- }
-
- return -ENODEV;
-}
-
static int get_block_device(const char *path, dev_t *dev) {
struct stat st;
struct statfs sfs;
return -errno;
if (F_TYPE_EQUAL(sfs.f_type, BTRFS_SUPER_MAGIC))
- return get_btrfs_block_device(path, dev);
+ return btrfs_get_block_device(path, dev);
return 0;
}
r = parse_boolean(value);
if (r < 0)
log_warning("Failed to parse gpt-auto switch %s. Ignoring.", value);
-
- arg_enabled = r;
+ else
+ arg_enabled = r;
} else if (streq(key, "root") && value) {
arg_root_rw = true;
else if (streq(key, "ro") && !value)
arg_root_rw = false;
- else if (startswith(key, "systemd.gpt-auto.") || startswith(key, "rd.systemd.gpt-auto."))
- log_warning("Unknown kernel switch %s. Ignoring.", key);
return 0;
}
if (r == -ENOENT) {
log_debug("EFI loader partition unknown, exiting.");
return 0;
- } else if (r < 0) {
- log_error("Failed to read ESP partition UUID: %s", strerror(-r));
- return r;
- }
+ } else if (r < 0)
+ return log_error_errno(r, "Failed to read ESP partition UUID: %m");
/* OK, we have an ESP partition, this is fantastic, so let's
* wait for a root device to show up. A udev rule will create
"/dev/gpt-auto-root",
in_initrd() ? "/sysroot" : "/",
NULL,
- arg_root_rw ? "rw" : "ro",
+ arg_root_rw,
"Root Partition",
in_initrd() ? SPECIAL_INITRD_ROOT_FS_TARGET : SPECIAL_LOCAL_FS_TARGET);
#else
int r;
r = get_block_device("/", &devno);
- if (r < 0) {
- log_error("Failed to determine block device of root file system: %s", strerror(-r));
- return r;
- } else if (r == 0) {
+ if (r < 0)
+ return log_error_errno(r, "Failed to determine block device of root file system: %m");
+ else if (r == 0) {
log_debug("Root file system not on a (single) block device.");
return 0;
}
return EXIT_SUCCESS;
}
- if (parse_proc_cmdline(parse_proc_cmdline_item) < 0)
- return EXIT_FAILURE;
+ r = parse_proc_cmdline(parse_proc_cmdline_item);
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
if (!arg_enabled) {
log_debug("Disabled, exiting.");
~ianmdlvl / elogind.git / blobdiff