Merge 6a8fcf7b8d into bbec1c87d3

Continuation of 4ebbb5bfe8.
Closes #35307.

man/importctl.xml

@@ -128,7 +128,8 @@
 
         <para>If <option>-keep-download=yes</option> is specified the image will be downloaded and stored in
         a read-only subvolume/directory in the image directory that is named after the specified URL and its
-        HTTP etag. A writable snapshot is then taken from this subvolume, and named after the specified local
+        HTTP etag (see <ulink url="https://en.wikipedia.org/wiki/HTTP_ETag">HTTP ETag</ulink> for more
+        information). A writable snapshot is then taken from this subvolume, and named after the specified local
         name. This behavior ensures that creating multiple instances of the same URL is efficient, as
         multiple downloads are not necessary. In order to create only the read-only image, and avoid creating
         its writable snapshot, specify <literal>-</literal> as local name.</para>

man/pam_systemd_loadkey.xml

@@ -28,7 +28,9 @@
     <title>Description</title>
 
     <para><command>pam_systemd_loadkey</command> reads a NUL-separated password list from the kernel keyring,
-    and sets the last password in the list as the PAM authtok.</para>
+    and sets the last password in the list as the PAM authtok, which can be used by e.g.
+    <citerefentry project='man-pages'><refentrytitle>pam_get_authtok</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
+    </para>
 
     <para>The password list is supposed to be stored in the "user" keyring of the root user,
     by an earlier call to

man/run0.xml

@@ -61,7 +61,10 @@
     <literal>systemd-run0</literal> PAM stack.</para>
 
     <para>Note that <command>run0</command> is implemented as an alternative multi-call invocation of
-    <citerefentry><refentrytitle>systemd-run</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para>
+    <citerefentry><refentrytitle>systemd-run</refentrytitle><manvolnum>1</manvolnum></citerefentry>. That is,
+    <command>run0</command> is a symbolic link to <command>systemd-run</command> executable file, and it
+    behaves as <command>run0</command> if it is invoked through the symbolic link, otherwise behaves as
+    <command>systemd-run</command>.</para>
   </refsect1>
 
   <refsect1>

man/systemd-rfkill.service.xml

@@ -41,8 +41,10 @@
   <refsect1>
     <title>Kernel Command Line</title>
 
-    <para><filename>systemd-rfkill</filename> understands the
-    following kernel command line parameter:</para>
+    <para>
+      <command>systemd-rfkill</command> understands the following kernel command line parameter. See also
+      <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry>.
+    </para>
 
     <variablelist class='kernel-commandline-options'>
       <varlistentry>

man/systemd-system.conf.xml

@@ -302,7 +302,7 @@
         and running in an initrd equivalent to true, otherwise false. This implements a restricted subset of
         the per-unit setting of the same name, see
         <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> for
-        details: currently, the <literal>full</literal> or <literal>struct</literal> values are not
+        details: currently, the <literal>full</literal> or <literal>strict</literal> values are not
         supported.</para>
 
         <xi:include href="version-info.xml" xpointer="v256"/></listitem>

man/ukify.xml

@@ -394,9 +394,9 @@
           <listitem><para>SBAT metadata associated with the UKI or addon. SBAT policies are useful to revoke
           whole groups of UKIs or addons with a single, static policy update that does not take space in
           DBX/MOKX. If not specified manually, a default metadata entry consisting of
-          <literal>uki,1,UKI,uki,1,https://uapi-group.org/specifications/specs/unified_kernel_image/</literal>
+          <programlisting>uki,1,UKI,uki,1,https://uapi-group.org/specifications/specs/unified_kernel_image/</programlisting>
           for UKIs and
-          <literal>uki-addon,1,UKI Addon,addon,1,https://www.freedesktop.org/software/systemd/man/latest/systemd-stub.html</literal>
+          <programlisting>uki-addon,1,UKI Addon,addon,1,https://www.freedesktop.org/software/systemd/man/latest/systemd-stub.html</programlisting>
           for addons will be used, to ensure it is always possible to revoke them. For more information on
           SBAT see <ulink url="https://github.com/rhboot/shim/blob/main/SBAT.md">Shim documentation</ulink>.
           </para>

src/basic/fileio.c

@@ -289,7 +289,8 @@ int write_string_file_full(
                 const char *fn,
                 const char *line,
                 WriteStringFileFlags flags,
-                const struct timespec *ts) {
+                const struct timespec *ts,
+                const char *label_fn) {
 
         bool call_label_ops_post = false, made_file = false;
         _cleanup_fclose_ FILE *f = NULL;
@@ -321,7 +322,8 @@ int write_string_file_full(
         mode_t mode = write_string_file_flags_to_mode(flags);
 
         if (FLAGS_SET(flags, WRITE_STRING_FILE_LABEL|WRITE_STRING_FILE_CREATE)) {
-                r = label_ops_pre(dir_fd, fn, mode);
+                const char *lookup = label_fn ? label_fn : fn;
+                r = label_ops_pre(dir_fd, lookup, mode);
                 if (r < 0)
                         goto fail;
 

src/basic/fileio.h

@@ -51,12 +51,13 @@ int write_string_stream_full(FILE *f, const char *line, WriteStringFileFlags fla
 static inline int write_string_stream(FILE *f, const char *line, WriteStringFileFlags flags) {
         return write_string_stream_full(f, line, flags, /* ts= */ NULL);
 }
-int write_string_file_full(int dir_fd, const char *fn, const char *line, WriteStringFileFlags flags, const struct timespec *ts);
+
+int write_string_file_full(int dir_fd, const char *fn, const char *line, WriteStringFileFlags flags, const struct timespec *ts, const char *label_fn);
 static inline int write_string_file(const char *fn, const char *line, WriteStringFileFlags flags) {
-        return write_string_file_full(AT_FDCWD, fn, line, flags, /* ts= */ NULL);
+        return write_string_file_full(AT_FDCWD, fn, line, flags, /* ts= */ NULL, /*label_fn=*/ NULL);
 }
 static inline int write_string_file_at(int dir_fd, const char *fn, const char *line, WriteStringFileFlags flags) {
-        return write_string_file_full(dir_fd, fn, line, flags, /* ts= */ NULL);
+        return write_string_file_full(dir_fd, fn, line, flags, /* ts= */ NULL, /*label_fn=*/ NULL);
 }
 int write_string_filef(const char *fn, WriteStringFileFlags flags, const char *format, ...) _printf_(3, 4);
 

src/core/device.c

@@ -332,6 +332,15 @@ static void device_catchup(Unit *u) {
         Device *d = ASSERT_PTR(DEVICE(u));
 
         /* Second, let's update the state with the enumerated state */
+
+        /* If Device.found (set by Device.deserialized_found) does not have DEVICE_FOUND_UDEV, and the device
+         * has never been processed by udevd, then also drop the flag from Device.enumerated_found. Note, do
+         * not unset the flag when the device was previously processed by udevd. Otherwise, e.g. if
+         * systemd-udev-trigger.service is started just before reexec, reload, and so on, many devices have
+         * ID_PROCESSING=1 property on enumeration and will enters dead state. See issue #35329. */
+        if (!FLAGS_SET(d->found, DEVICE_FOUND_UDEV) && !d->processed)
+                d->enumerated_found &= ~DEVICE_FOUND_UDEV;
+
         device_update_found_one(d, d->enumerated_found, _DEVICE_FOUND_MASK);
 }
 
@@ -777,8 +786,16 @@ static int device_setup_devlink_unit_one(Manager *m, const char *devlink, Set **
         assert(ready_units);
         assert(not_ready_units);
 
-        if (sd_device_new_from_devname(&dev, devlink) >= 0 && device_is_ready(dev))
+        if (sd_device_new_from_devname(&dev, devlink) >= 0 && device_is_ready(dev)) {
+                if (MANAGER_IS_RUNNING(m) && device_is_processed(dev) <= 0)
+                        /* The device is being processed by udevd. We will receive relevant uevent for the
+                         * device later when completed. Let's ignore the device now. */
+                        return 0;
+
+                /* Note, even if the device is being processed by udevd, setup the unit on enumerate.
+                 * See slso the comments in device_catchup(). */
                 return device_setup_unit(m, dev, devlink, /* main = */ false, ready_units);
+        }
 
         /* the devlink is already removed or not ready */
         if (device_by_path(m, devlink, &u) < 0)
@@ -874,14 +891,15 @@ static int device_setup_extra_units(Manager *m, sd_device *dev, Set **ready_unit
         return 0;
 }
 
-static int device_setup_units(Manager *m, sd_device *dev, Set **ready_units, Set **not_ready_units) {
+static int device_setup_units(Manager *m, sd_device *dev, Set **ret_ready_units, Set **ret_not_ready_units) {
+        _cleanup_set_free_ Set *ready_units = NULL, *not_ready_units = NULL;
         const char *syspath, *devname = NULL;
         int r;
 
         assert(m);
         assert(dev);
-        assert(ready_units);
-        assert(not_ready_units);
+        assert(ret_ready_units);
+        assert(ret_not_ready_units);
 
         r = sd_device_get_syspath(dev, &syspath);
         if (r < 0)
@@ -901,13 +919,13 @@ static int device_setup_units(Manager *m, sd_device *dev, Set **ready_units, Set
                 /* Add the main unit named after the syspath. If this one fails, don't bother with the rest,
                  * as this one shall be the main device unit the others just follow. (Compare with how
                  * device_following() is implemented, see below, which looks for the sysfs device.) */
-                r = device_setup_unit(m, dev, syspath, /* main = */ true, ready_units);
+                r = device_setup_unit(m, dev, syspath, /* main = */ true, &ready_units);
                 if (r < 0)
                         return r;
 
                 /* Add an additional unit for the device node */
                 if (sd_device_get_devname(dev, &devname) >= 0)
-                        (void) device_setup_unit(m, dev, devname, /* main = */ false, ready_units);
+                        (void) device_setup_unit(m, dev, devname, /* main = */ false, &ready_units);
 
         } else {
                 Unit *u;
@@ -915,28 +933,30 @@ static int device_setup_units(Manager *m, sd_device *dev, Set **ready_units, Set
                 /* If the device exists but not ready, then save the units and unset udev bits later. */
 
                 if (device_by_path(m, syspath, &u) >= 0) {
-                        r = set_ensure_put(not_ready_units, NULL, DEVICE(u));
+                        r = set_ensure_put(&not_ready_units, NULL, DEVICE(u));
                         if (r < 0)
                                 log_unit_debug_errno(u, r, "Failed to store unit, ignoring: %m");
                 }
 
                 if (sd_device_get_devname(dev, &devname) >= 0 &&
                     device_by_path(m, devname, &u) >= 0) {
-                        r = set_ensure_put(not_ready_units, NULL, DEVICE(u));
+                        r = set_ensure_put(&not_ready_units, NULL, DEVICE(u));
                         if (r < 0)
                                 log_unit_debug_errno(u, r, "Failed to store unit, ignoring: %m");
                 }
         }
 
         /* Next, add/update additional .device units point to aliases and symlinks. */
-        (void) device_setup_extra_units(m, dev, ready_units, not_ready_units);
+        (void) device_setup_extra_units(m, dev, &ready_units, &not_ready_units);
 
         /* Safety check: no unit should be in ready_units and not_ready_units simultaneously. */
         Unit *u;
-        SET_FOREACH(u, *not_ready_units)
-                if (set_remove(*ready_units, u))
+        SET_FOREACH(u, not_ready_units)
+                if (set_remove(ready_units, u))
                         log_unit_error(u, "Cannot activate and deactivate the unit simultaneously. Deactivating.");
 
+        *ret_ready_units = TAKE_PTR(ready_units);
+        *ret_not_ready_units = TAKE_PTR(not_ready_units);
         return 0;
 }
 
@@ -1046,13 +1066,32 @@ static void device_enumerate(Manager *m) {
 
         FOREACH_DEVICE(e, dev) {
                 _cleanup_set_free_ Set *ready_units = NULL, *not_ready_units = NULL;
+                const char *syspath;
+                bool processed;
                 Device *d;
 
+                r = sd_device_get_syspath(dev, &syspath);
+                if (r < 0) {
+                        log_device_debug_errno(dev, r, "Failed to get syspath of enumerated device, ignoring: %m");
+                        continue;
+                }
+
+                r = device_is_processed(dev);
+                if (r < 0)
+                        log_device_debug_errno(dev, r, "Failed to check if device is processed by udevd, assuming not: %m");
+                processed = r > 0;
+
                 if (device_setup_units(m, dev, &ready_units, &not_ready_units) < 0)
                         continue;
 
-                SET_FOREACH(d, ready_units)
+                SET_FOREACH(d, ready_units) {
                         device_update_found_one(d, DEVICE_FOUND_UDEV, DEVICE_FOUND_UDEV);
+
+                        /* Why we need to check the syspath here? Because the device unit may be generated by
+                         * a devlink, and the syspath may be different from the one of the original device. */
+                        if (streq_ptr(d->sysfs, syspath))
+                                d->processed = processed;
+                }
                 SET_FOREACH(d, not_ready_units)
                         device_update_found_one(d, DEVICE_NOT_FOUND, DEVICE_FOUND_UDEV);
         }
@@ -1097,7 +1136,6 @@ static void device_remove_old_on_move(Manager *m, sd_device *dev) {
 }
 
 static int device_dispatch_io(sd_device_monitor *monitor, sd_device *dev, void *userdata) {
-        _cleanup_set_free_ Set *ready_units = NULL, *not_ready_units = NULL;
         Manager *m = ASSERT_PTR(userdata);
         sd_device_action_t action;
         const char *sysfs;
@@ -1150,6 +1188,7 @@ static int device_dispatch_io(sd_device_monitor *monitor, sd_device *dev, void *
          * change events */
         ready = device_is_ready(dev);
 
+        _cleanup_set_free_ Set *ready_units = NULL, *not_ready_units = NULL;
         (void) device_setup_units(m, dev, &ready_units, &not_ready_units);
 
         if (action == SD_DEVICE_REMOVE) {

src/core/device.h

@@ -31,6 +31,9 @@ struct Device {
         DeviceFound found, deserialized_found, enumerated_found;
 
         bool bind_mounts;
+        bool processed; /* Whether udevd has been processed the device, i.e. the device has database and
+                         * ID_PROCESSING=1 udev property is not set. This is used only by enumeration and
+                         * subsequent catchup process. */
 
         /* The SYSTEMD_WANTS udev property for this device the last time we saw it */
         char **wants_property;

src/cryptsetup/cryptsetup-pkcs11.c

@@ -16,6 +16,7 @@
 #include "fileio.h"
 #include "format-util.h"
 #include "hexdecoct.h"
+#include "iovec-util.h"
 #include "macro.h"
 #include "memory-util.h"
 #include "parse-util.h"
@@ -31,8 +32,7 @@ int decrypt_pkcs11_key(
                 const char *key_file,         /* We either expect key_file and associated parameters to be set (for file keys) … */
                 size_t key_file_size,
                 uint64_t key_file_offset,
-                const void *key_data,         /* … or key_data and key_data_size (for literal keys) */
-                size_t key_data_size,
+                const struct iovec *key_data, /* … or literal keys via key_data */
                 usec_t until,
                 AskPasswordFlags askpw_flags,
                 void **ret_decrypted_key,
@@ -47,15 +47,15 @@ int decrypt_pkcs11_key(
 
         assert(friendly_name);
         assert(pkcs11_uri);
-        assert(key_file || key_data);
+        assert(key_file || iovec_is_set(key_data));
         assert(ret_decrypted_key);
         assert(ret_decrypted_key_size);
 
         /* The functions called here log about all errors, except for EAGAIN which means "token not found right now" */
 
-        if (key_data) {
-                data.encrypted_key = (void*) key_data;
-                data.encrypted_key_size = key_data_size;
+        if (iovec_is_set(key_data)) {
+                data.encrypted_key = (void*) key_data->iov_base;
+                data.encrypted_key_size = key_data->iov_len;
 
                 data.free_encrypted_key = false;
         } else {

src/cryptsetup/cryptsetup-pkcs11.h

@@ -16,8 +16,7 @@ int decrypt_pkcs11_key(
                 const char *key_file,
                 size_t key_file_size,
                 uint64_t key_file_offset,
-                const void *key_data,
-                size_t key_data_size,
+                const struct iovec *key_data,
                 usec_t until,
                 AskPasswordFlags askpw_flags,
                 void **ret_decrypted_key,
@@ -39,8 +38,7 @@ static inline int decrypt_pkcs11_key(
                 const char *key_file,
                 size_t key_file_size,
                 uint64_t key_file_offset,
-                const void *key_data,
-                size_t key_data_size,
+                const struct iovec *key_data,
                 usec_t until,
                 AskPasswordFlags askpw_flags,
                 void **ret_decrypted_key,

src/cryptsetup/cryptsetup.c

@@ -1471,8 +1471,7 @@ static int attach_luks_or_plain_or_bitlk_by_fido2(
                 struct crypt_device *cd,
                 const char *name,
                 const char *key_file,
-                const void *key_data,
-                size_t key_data_size,
+                const struct iovec *key_data,
                 usec_t until,
                 uint32_t flags,
                 bool pass_volume_key) {
@@ -1489,7 +1488,7 @@ static int attach_luks_or_plain_or_bitlk_by_fido2(
         assert(name);
         assert(arg_fido2_device || arg_fido2_device_auto);
 
-        if (arg_fido2_cid && !key_file && !key_data)
+        if (arg_fido2_cid && !key_file && !iovec_is_set(key_data))
                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
                                         "FIDO2 mode with manual parameters selected, but no keyfile specified, refusing.");
 
@@ -1513,7 +1512,7 @@ static int attach_luks_or_plain_or_bitlk_by_fido2(
                                                 arg_fido2_rp_id,
                                                 arg_fido2_cid, arg_fido2_cid_size,
                                                 key_file, arg_keyfile_size, arg_keyfile_offset,
-                                                key_data, key_data_size,
+                                                key_data,
                                                 until,
                                                 arg_fido2_manual_flags,
                                                 "cryptsetup.fido2-pin",
@@ -1623,8 +1622,7 @@ static int attach_luks_or_plain_or_bitlk_by_pkcs11(
                 struct crypt_device *cd,
                 const char *name,
                 const char *key_file,
-                const void *key_data,
-                size_t key_data_size,
+                const struct iovec *key_data,
                 usec_t until,
                 uint32_t flags,
                 bool pass_volume_key) {
@@ -1635,6 +1633,7 @@ static int attach_luks_or_plain_or_bitlk_by_pkcs11(
         _cleanup_(erase_and_freep) void *decrypted_key = NULL;
         _cleanup_(sd_event_unrefp) sd_event *event = NULL;
         _cleanup_free_ void *discovered_key = NULL;
+        struct iovec discovered_key_data = {};
         int keyslot = arg_key_slot, r;
         const char *uri = NULL;
         bool use_libcryptsetup_plugin = use_token_plugins();
@@ -1653,13 +1652,13 @@ static int attach_luks_or_plain_or_bitlk_by_pkcs11(
                                 return r;
 
                         uri = discovered_uri;
-                        key_data = discovered_key;
-                        key_data_size = discovered_key_size;
+                        discovered_key_data = IOVEC_MAKE(discovered_key, discovered_key_size);
+                        key_data = &discovered_key_data;
                 }
         } else {
                 uri = arg_pkcs11_uri;
 
-                if (!key_file && !key_data)
+                if (!key_file && !iovec_is_set(key_data))
                         return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "PKCS#11 mode selected but no key file specified, refusing.");
         }
 
@@ -1682,7 +1681,7 @@ static int attach_luks_or_plain_or_bitlk_by_pkcs11(
                                         friendly,
                                         uri,
                                         key_file, arg_keyfile_size, arg_keyfile_offset,
-                                        key_data, key_data_size,
+                                        key_data,
                                         until,
                                         arg_ask_password_flags,
                                         &decrypted_key, &decrypted_key_size);
@@ -2231,9 +2230,9 @@ static int attach_luks_or_plain_or_bitlk(
         if (token_type == TOKEN_TPM2)
                 return attach_luks_or_plain_or_bitlk_by_tpm2(cd, name, key_file, key_data, until, flags, pass_volume_key);
         if (token_type == TOKEN_FIDO2)
-                return attach_luks_or_plain_or_bitlk_by_fido2(cd, name, key_file, key_data->iov_base, key_data->iov_len, until, flags, pass_volume_key);
+                return attach_luks_or_plain_or_bitlk_by_fido2(cd, name, key_file, key_data, until, flags, pass_volume_key);
         if (token_type == TOKEN_PKCS11)
-                return attach_luks_or_plain_or_bitlk_by_pkcs11(cd, name, key_file, key_data->iov_base, key_data->iov_len, until, flags, pass_volume_key);
+                return attach_luks_or_plain_or_bitlk_by_pkcs11(cd, name, key_file, key_data, until, flags, pass_volume_key);
         if (key_data)
                 return attach_luks_or_plain_or_bitlk_by_key_data(cd, name, key_data, flags, pass_volume_key);
         if (key_file)

src/libsystemd/sd-varlink/sd-varlink.c

@@ -1698,7 +1698,8 @@ _public_ int sd_varlink_get_events(sd_varlink *v) {
                 ret |= EPOLLIN;
 
         if (!v->write_disconnected &&
-            v->output_buffer_size > 0)
+            (v->output_queue ||
+             v->output_buffer_size > 0))
                 ret |= EPOLLOUT;
 
         return ret;

src/shared/cryptsetup-fido2.c

@@ -24,8 +24,7 @@ int acquire_fido2_key(
                 const char *key_file,
                 size_t key_file_size,
                 uint64_t key_file_offset,
-                const void *key_data,
-                size_t key_data_size,
+                const struct iovec *key_data,
                 usec_t until,
                 Fido2EnrollFlags required,
                 const char *askpw_credential,
@@ -45,10 +44,10 @@ int acquire_fido2_key(
                                         "Local verification is required to unlock this volume, but the 'headless' parameter was set.");
 
         assert(cid);
-        assert(key_file || key_data);
+        assert(key_file || iovec_is_set(key_data));
 
-        if (key_data)
-                salt = IOVEC_MAKE(key_data, key_data_size);
+        if (iovec_is_set(key_data))
+                salt = *key_data;
         else {
                 if (key_file_size > 0)
                         log_debug("Ignoring 'keyfile-size=' option for a FIDO2 salt file.");
@@ -252,7 +251,7 @@ int acquire_fido2_key_auto(
                                 /* key_file= */ NULL, /* salt is read from LUKS header instead of key_file */
                                 /* key_file_size= */ 0,
                                 /* key_file_offset= */ 0,
-                                salt, salt_size,
+                                &IOVEC_MAKE(salt, salt_size),
                                 until,
                                 required,
                                 "cryptsetup.fido2-pin",

src/shared/cryptsetup-fido2.h

@@ -20,8 +20,7 @@ int acquire_fido2_key(
                 const char *key_file,
                 size_t key_file_size,
                 uint64_t key_file_offset,
-                const void *key_data,
-                size_t key_data_size,
+                const struct iovec *key_data,
                 usec_t until,
                 Fido2EnrollFlags required,
                 const char *askpw_credential,
@@ -52,8 +51,7 @@ static inline int acquire_fido2_key(
                 const char *key_file,
                 size_t key_file_size,
                 uint64_t key_file_offset,
-                const void *key_data,
-                size_t key_data_size,
+                const struct iovec *key_data,
                 usec_t until,
                 Fido2EnrollFlags required,
                 const char *askpw_credential,

src/sysext/sysext.c

@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
 #include <linux/loop.h>
@@ -45,6 +46,7 @@
 #include "process-util.h"
 #include "rm-rf.h"
 #include "sort-util.h"
+#include "selinux-util.h"
 #include "string-table.h"
 #include "string-util.h"
 #include "terminal-util.h"
@@ -899,6 +901,7 @@ static int resolve_mutable_directory(
         _cleanup_free_ char *path = NULL, *resolved_path = NULL, *dir_name = NULL;
         const char *root = arg_root, *base = MUTABLE_EXTENSIONS_BASE_DIR;
         int r;
+        _cleanup_close_ int atfd = -EBADF;
 
         assert(hierarchy);
         assert(ret_resolved_mutable_directory);
@@ -943,6 +946,14 @@ static int resolve_mutable_directory(
                 r = mkdir_p(path_in_root, 0700);
                 if (r < 0)
                         return log_error_errno(r, "Failed to create a directory '%s': %m", path_in_root);
+
+                atfd = open(path_in_root, O_DIRECTORY|O_CLOEXEC);
+                if (atfd < 0)
+                        return log_error_errno(errno, "Failed to open directory '%s': %m", path_in_root);
+
+                r = mac_selinux_fix_full(atfd, NULL, hierarchy, 0);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to fix SELinux label for '%s': %m", path_in_root);
         }
 
         r = chase(path, root, CHASE_PREFIX_ROOT, &resolved_path, NULL);
@@ -1289,6 +1300,7 @@ static int mount_overlayfs_with_op(
 
         int r;
         const char *top_layer = NULL;
+        _cleanup_close_ int atfd = -EBADF;
 
         assert(op);
         assert(overlay_path);
@@ -1301,10 +1313,28 @@ static int mount_overlayfs_with_op(
         if (r < 0)
                 return log_error_errno(r, "Failed to make directory '%s': %m", meta_path);
 
+        atfd = open(meta_path, O_DIRECTORY|O_CLOEXEC);
+        if (atfd < 0)
+                return log_error_errno(errno, "Failed to open directory '%s': %m", meta_path);
+
+        r = mac_selinux_fix_full(atfd, NULL, op->hierarchy, 0);
+        if (r < 0)
+                return log_error_errno(r, "Failed to fix SELinux label for '%s': %m", meta_path);
+
         if (op->upper_dir && op->work_dir) {
                 r = mkdir_p(op->work_dir, 0700);
                 if (r < 0)
                         return log_error_errno(r, "Failed to make directory '%s': %m", op->work_dir);
+                _cleanup_close_ int dfd = -EBADF;
+
+                dfd = open(op->work_dir, O_DIRECTORY|O_CLOEXEC);
+                if (dfd < 0)
+                        return log_error_errno(errno, "Failed to open directory '%s': %m", op->work_dir);
+
+                r = mac_selinux_fix_full(dfd, NULL, op->hierarchy, 0);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to fix SELinux label for '%s': %m", op->work_dir);
+
                 top_layer = op->upper_dir;
         } else {
                 assert(!strv_isempty(op->lower_dirs));
@@ -1325,7 +1355,7 @@ static int mount_overlayfs_with_op(
         return 0;
 }
 
-static int write_extensions_file(ImageClass image_class, char **extensions, const char *meta_path) {
+static int write_extensions_file(ImageClass image_class, char **extensions, const char *meta_path, const char *hierarchy) {
         _cleanup_free_ char *f = NULL, *buf = NULL;
         int r;
 
@@ -1343,14 +1373,15 @@ static int write_extensions_file(ImageClass image_class, char **extensions, cons
         if (!buf)
                 return log_oom();
 
-        r = write_string_file(f, buf, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_MKDIR_0755);
+        const char *hierarchy_path = path_join(hierarchy, image_class_info[image_class].dot_directory_name, image_class_info[image_class].short_identifier_plural);
+        r = write_string_file_full(AT_FDCWD,f, buf, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_MKDIR_0755|WRITE_STRING_FILE_LABEL, NULL, hierarchy_path);
         if (r < 0)
                 return log_error_errno(r, "Failed to write extension meta file '%s': %m", f);
 
         return 0;
 }
 
-static int write_dev_file(ImageClass image_class, const char *meta_path, const char *overlay_path) {
+static int write_dev_file(ImageClass image_class, const char *meta_path, const char *overlay_path, const char *hierarchy) {
         _cleanup_free_ char *f = NULL;
         struct stat st;
         int r;
@@ -1372,14 +1403,15 @@ static int write_dev_file(ImageClass image_class, const char *meta_path, const c
         /* Modifying the underlying layers while the overlayfs is mounted is technically undefined, but at
          * least it won't crash or deadlock, as per the kernel docs about overlayfs:
          * https://www.kernel.org/doc/html/latest/filesystems/overlayfs.html#changes-to-underlying-filesystems */
-        r = write_string_file(f, FORMAT_DEVNUM(st.st_dev), WRITE_STRING_FILE_CREATE);
+        const char *hierarchy_path = path_join(hierarchy, image_class_info[image_class].dot_directory_name, image_class_info[image_class].short_identifier_plural);
+        r = write_string_file_full(AT_FDCWD, f, FORMAT_DEVNUM(st.st_dev), WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_LABEL, NULL, hierarchy_path);
         if (r < 0)
                 return log_error_errno(r, "Failed to write '%s': %m", f);
 
         return 0;
 }
 
-static int write_work_dir_file(ImageClass image_class, const char *meta_path, const char *work_dir) {
+static int write_work_dir_file(ImageClass image_class, const char *meta_path, const char *work_dir, const char* hierarchy) {
         _cleanup_free_ char *escaped_work_dir_in_root = NULL, *f = NULL;
         char *work_dir_in_root = NULL;
         int r;
@@ -1406,7 +1438,8 @@ static int write_work_dir_file(ImageClass image_class, const char *meta_path, co
         escaped_work_dir_in_root = cescape(work_dir_in_root);
         if (!escaped_work_dir_in_root)
                 return log_oom();
-        r = write_string_file(f, escaped_work_dir_in_root, WRITE_STRING_FILE_CREATE);
+        const char *hierarchy_path = path_join(hierarchy, image_class_info[image_class].dot_directory_name, "work_dir");
+        r = write_string_file_full(AT_FDCWD, f, escaped_work_dir_in_root, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_LABEL, NULL, hierarchy_path);
         if (r < 0)
                 return log_error_errno(r, "Failed to write '%s': %m", f);
 
@@ -1418,8 +1451,10 @@ static int store_info_in_meta(
                 char **extensions,
                 const char *meta_path,
                 const char *overlay_path,
-                const char *work_dir) {
-
+                const char *work_dir,
+                const char *hierarchy) {
+        _cleanup_free_ char *f = NULL;
+        _cleanup_close_ int atfd = -EBADF;
         int r;
 
         assert(extensions);
@@ -1427,15 +1462,32 @@ static int store_info_in_meta(
         assert(overlay_path);
         /* work_dir may be NULL */
 
-        r = write_extensions_file(image_class, extensions, meta_path);
+        f = path_join(meta_path, image_class_info[image_class].dot_directory_name);
+        if (!f)
+                return log_oom();
+
+        r = mkdir_p(f, 0755);
         if (r < 0)
                 return r;
 
-        r = write_dev_file(image_class, meta_path, overlay_path);
+        atfd = open(f, O_DIRECTORY|O_CLOEXEC);
+        if (atfd < 0)
+                return log_error_errno(errno, "Failed to open directory '%s': %m", f);
+
+        r = mac_selinux_fix_full(atfd, NULL, hierarchy, 0);
+
+        if (r < 0)
+                return log_error_errno(r, "Failed to fix SELinux label for '%s': %m", hierarchy);
+
+        r = write_extensions_file(image_class, extensions, meta_path, hierarchy);
         if (r < 0)
                 return r;
 
-        r = write_work_dir_file(image_class, meta_path, work_dir);
+        r = write_dev_file(image_class, meta_path, overlay_path, hierarchy);
+        if (r < 0)
+                return r;
+
+        r = write_work_dir_file(image_class, meta_path, work_dir, hierarchy);
         if (r < 0)
                 return r;
 
@@ -1501,6 +1553,8 @@ static int merge_hierarchy(
         assert(overlay_path);
         assert(workspace_path);
 
+        mac_selinux_init();
+
         r = determine_used_extensions(hierarchy, paths, &used_paths, &extensions_used);
         if (r < 0)
                 return r;
@@ -1528,7 +1582,7 @@ static int merge_hierarchy(
         if (r < 0)
                 return r;
 
-        r = store_info_in_meta(image_class, extensions, meta_path, overlay_path, op->work_dir);
+        r = store_info_in_meta(image_class, extensions, meta_path, overlay_path, op->work_dir, op->hierarchy);
         if (r < 0)
                 return r;
 

src/sysupdate/updatectl.c

@@ -1414,7 +1414,7 @@ static int verb_enable(int argc, char **argv, void *userdata) {
                                        "SetFeatureEnabled",
                                        &error,
                                        /* reply= */ NULL,
-                                       "sbt",
+                                       "sit",
                                        *feature,
                                        (int) enable,
                                        UINT64_C(0));

src/update-done/update-done.c

@@ -29,7 +29,7 @@ static int apply_timestamp(const char *path, struct timespec *ts) {
                      timespec_load_nsec(ts)) < 0)
                 return log_oom();
 
-        r = write_string_file_full(AT_FDCWD, path, message, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_LABEL, ts);
+        r = write_string_file_full(AT_FDCWD, path, message, WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_LABEL, ts, NULL);
         if (r == -EROFS)
                 log_debug_errno(r, "Cannot create \"%s\", file system is read-only.", path);
         else if (r < 0)

test/units/TEST-13-NSPAWN.machined.sh

@@ -22,6 +22,11 @@ trap at_exit EXIT
 
 systemctl service-log-level systemd-machined debug
 systemctl service-log-level systemd-importd debug
+# per request in https://github.com/systemd/systemd/pull/35117
+systemctl edit --runtime --stdin 'systemd-nspawn@.service' --drop-in=debug.conf <<EOF
+[Service]
+Environment=SYSTEMD_LOG_LEVEL=debug
+EOF
 
 # Mount temporary directory over /var/lib/machines to not pollute the image
 mkdir -p /var/lib/machines
@@ -278,13 +283,13 @@ varlinkctl call /run/systemd/machine/io.systemd.Machine io.systemd.Machine.List
 # sending TRAP signal
 rm -f /var/lib/machines/long-running/trap
 varlinkctl call /run/systemd/machine/io.systemd.Machine io.systemd.Machine.Kill '{"name":"long-running", "whom": "leader", "signal": 5}'
-timeout 30 bash -c "until test -e /var/lib/machines/long-running/trap; do sleep .5; done"
+timeout 120 bash -c "until test -e /var/lib/machines/long-running/trap; do sleep .5; done"
 
 # test io.systemd.Machine.Terminate
 long_running_machine_start
 rm -f /var/lib/machines/long-running/terminate
 varlinkctl call /run/systemd/machine/io.systemd.Machine io.systemd.Machine.Terminate '{"name":"long-running"}'
-timeout 10 bash -c "until test -e /var/lib/machines/long-running/terminate; do sleep .5; done"
+timeout 30 bash -c "until test -e /var/lib/machines/long-running/terminate; do sleep .5; done"
 timeout 30 bash -c "while varlinkctl call /run/systemd/machine/io.systemd.Machine io.systemd.Machine.List '{\"name\":\"long-running\"}'; do sleep 0.5; done"
 
 # test io.systemd.Machine.Register
@@ -356,7 +361,7 @@ journalctl --sync
 machinectl terminate container-without-os-release
 machinectl terminate long-running
 # wait for the container being stopped, otherwise acquiring image metadata by io.systemd.MachineImage.List may fail in the below.
-timeout 10 bash -c "while machinectl status long-running &>/dev/null; do sleep .5; done"
+timeout 30 bash -c "while machinectl status long-running &>/dev/null; do sleep .5; done"
 systemctl kill --signal=KILL systemd-nspawn@long-running.service || :
 
 (ip addr show lo | grep -q 192.168.1.100) || ip address add 192.168.1.100/24 dev lo

test/units/TEST-17-UDEV.device_is_processing.sh

@@ -31,18 +31,50 @@ cat >/run/udev/udev.conf.d/timeout.conf <<EOF
 event_timeout=1h
 EOF
 
+# First, test 'add' event.
 mkdir -p /run/udev/rules.d/
 cat >/run/udev/rules.d/99-testsuite.rules <<EOF
-SUBSYSTEM=="net", ACTION=="change", KERNEL=="${IFNAME}", OPTIONS="log_level=debug", RUN+="/usr/bin/sleep 1000"
+SUBSYSTEM=="net", ACTION=="add", KERNEL=="${IFNAME}", OPTIONS="log_level=debug", RUN+="/usr/bin/sleep 1000"
 EOF
 
 systemctl restart systemd-udevd.service
 
 ip link add "$IFNAME" type dummy
 IFINDEX=$(ip -json link show "$IFNAME" | jq '.[].ifindex')
-udevadm wait --timeout 10 "/sys/class/net/${IFNAME}"
-# Check if the database file is created.
-[[ -e "/run/udev/data/n${IFINDEX}" ]]
+timeout 30 bash -c "until [[ -e /run/udev/data/n${IFINDEX} ]] && grep -q -F 'ID_PROCESSING=1' /run/udev/data/n${IFINDEX}; do sleep .5; done"
+
+(! systemctl is-active "sys-devices-virtual-net-${IFNAME}.device")
+(! systemctl is-active "sys-subsystem-net-devices-${IFNAME}.device")
+
+for _ in {1..3}; do
+    systemctl daemon-reexec
+    (! systemctl is-active "sys-devices-virtual-net-${IFNAME}.device")
+    (! systemctl is-active "sys-subsystem-net-devices-${IFNAME}.device")
+done
+
+for _ in {1..3}; do
+    systemctl daemon-reload
+    (! systemctl is-active "sys-devices-virtual-net-${IFNAME}.device")
+    (! systemctl is-active "sys-subsystem-net-devices-${IFNAME}.device")
+done
+
+# Check if the reexec and reload have finished during processing the event.
+grep -q -F 'ID_PROCESSING=1' "/run/udev/data/n${IFINDEX}"
+
+# Forcibly kill sleep command ivoked by the udev rule to finish processing the add event.
+killall sleep
+udevadm settle --timeout=20
+
+# Check if ID_PROCESSING flag is unset, and the device units are active.
+(! grep -q -F 'ID_PROCESSING=1' "/run/udev/data/n${IFINDEX}")
+systemctl is-active "sys-devices-virtual-net-${IFNAME}.device"
+systemctl is-active "sys-subsystem-net-devices-${IFNAME}.device"
+
+# Next, test 'change' event.
+cat >/run/udev/rules.d/99-testsuite.rules <<EOF
+SUBSYSTEM=="net", ACTION=="change", KERNEL=="${IFNAME}", OPTIONS="log_level=debug", RUN+="/usr/bin/sleep 1000"
+EOF
+udevadm control --reload
 
 systemd-run \
     -p After="sys-subsystem-net-devices-${IFNAME}.device" \
@@ -50,22 +82,29 @@ systemd-run \
     -u testsleep.service \
     sleep 1h
 
-timeout 10 bash -c 'until systemctl is-active testsleep.service; do sleep .5; done'
-
 udevadm trigger "/sys/class/net/${IFNAME}"
-timeout 30 bash -c "until grep -F 'ID_PROCESSING=1' /run/udev/data/n${IFINDEX}; do sleep .5; done"
+timeout 30 bash -c "until grep -q -F 'ID_PROCESSING=1' /run/udev/data/n${IFINDEX}; do sleep .5; done"
+
+# Check if the service and device units are still active even ID_PROCESSING flag is set.
+systemctl is-active testsleep.service
+systemctl is-active "sys-devices-virtual-net-${IFNAME}.device"
+systemctl is-active "sys-subsystem-net-devices-${IFNAME}.device"
 
 for _ in {1..3}; do
     systemctl daemon-reexec
     systemctl is-active testsleep.service
+    systemctl is-active "sys-devices-virtual-net-${IFNAME}.device"
+    systemctl is-active "sys-subsystem-net-devices-${IFNAME}.device"
 done
 
 for _ in {1..3}; do
     systemctl daemon-reload
     systemctl is-active testsleep.service
+    systemctl is-active "sys-devices-virtual-net-${IFNAME}.device"
+    systemctl is-active "sys-subsystem-net-devices-${IFNAME}.device"
 done
 
 # Check if the reexec and reload have finished during processing the event.
-grep -F 'ID_PROCESSING=1' "/run/udev/data/n${IFINDEX}"
+grep -q -F 'ID_PROCESSING=1' "/run/udev/data/n${IFINDEX}"
 
 exit 0