Merge d4f1b642c2 into b7eefa1996

CID#1565824

Follow-up for f6793bbcf0

hwdb.d/60-sensor.hwdb

@@ -376,11 +376,12 @@ sensor:modalias:acpi:KIOX000A*:dmi:*:svncube:pni1-TF:*
 sensor:modalias:acpi:SMO8500*:dmi:*:svncube:pni7:*
  ACCEL_MOUNT_MATRIX=1, 0, 0; 0, -1, 0; 0, 0, 1
 
-# Cube i7 Stylus, i7 Stylus I8L Model, i7 Book (i16) and Mix Plus (i18B)
+# Cube i7 Stylus, i7 Stylus I8L Model, i7 Book (i16) and Mix Plus (i18B/i18D)
 sensor:modalias:acpi:KIOX000A*:dmi:*:svnCube:pni7Stylus:*
 sensor:modalias:acpi:KIOX000A*:dmi:*:svnCube:pni8-L:*
 sensor:modalias:acpi:KIOX000A*:dmi:*:svnCube:pni16:*
 sensor:modalias:acpi:KIOX000A*:dmi:*:svnCube:pni18B:*
+sensor:modalias:acpi:KIOX000A*:dmi:*:svnALLDOCUBE:pni18D:*
  ACCEL_MOUNT_MATRIX=-1, 0, 0; 0, 1, 0; 0, 0, 1
 
 # Cube iWork 10 Flagship

man/pam_systemd.xml

@@ -143,6 +143,10 @@
                 <entry><constant>manager-early</constant></entry>
                 <entry>Similar to <constant>manager</constant>, but for the root user. Compare with the <constant>user</constant> vs. <constant>user-early</constant> situation. (Added in v256.)</entry>
               </row>
+              <row>
+                <entry><constant>none</constant></entry>
+                <entry>Skips registering this session with logind. No session scope will be created, and the user service manager will not be started. (Added in v258.)</entry>
+              </row>
             </tbody>
           </tgroup>
         </table>

po/fi.po

@@ -3,12 +3,13 @@
 # Finnish translation of systemd.
 # Jan Kuparinen <copper_fin@hotmail.com>, 2021, 2022, 2023.
 # Ricky Tigg <ricky.tigg@gmail.com>, 2022, 2024.
+# Jiri Grönroos <jiri.gronroos@iki.fi>, 2024.
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2024-11-06 14:42+0000\n"
-"PO-Revision-Date: 2024-09-12 13:43+0000\n"
+"PO-Revision-Date: 2024-11-20 19:13+0000\n"
-"Last-Translator: Ricky Tigg <ricky.tigg@gmail.com>\n"
+"Last-Translator: Jiri Grönroos <jiri.gronroos@iki.fi>\n"
 "Language-Team: Finnish <https://translate.fedoraproject.org/projects/systemd/"
 "main/fi/>\n"
 "Language: fi\n"
@@ -16,7 +17,7 @@ msgstr ""
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 5.7.2\n"
+"X-Generator: Weblate 5.8.2\n"
 
 #: src/core/org.freedesktop.systemd1.policy.in:22
 msgid "Send passphrase back to system"
@@ -112,14 +113,12 @@ msgid "Authentication is required to update a user's home area."
 msgstr "Todennus vaaditaan käyttäjän kotialueen päivittämiseksi."
 
 #: src/home/org.freedesktop.home1.policy:53
-#, fuzzy
 msgid "Update your home area"
 msgstr "Päivitä kotialue"
 
 #: src/home/org.freedesktop.home1.policy:54
-#, fuzzy
 msgid "Authentication is required to update your home area."
-msgstr "Todennus vaaditaan käyttäjän kotialueen päivittämiseksi."
+msgstr "Todennus vaaditaan kotialueen päivittämiseksi."
 
 #: src/home/org.freedesktop.home1.policy:63
 msgid "Resize a home area"
@@ -1174,14 +1173,11 @@ msgstr "Todennus vaaditaan vanhojen järjestelmäpäivitysten puhdistamiseen."
 
 #: src/sysupdate/org.freedesktop.sysupdate1.policy:75
 msgid "Manage optional features"
-msgstr ""
+msgstr "Hallitse valinnaisia ominaisuuksia"
 
 #: src/sysupdate/org.freedesktop.sysupdate1.policy:76
-#, fuzzy
 msgid "Authentication is required to manage optional features"
-msgstr ""
+msgstr "Todennus vaaditaan valinnaisten ominaisuuksien hallintaan"
-"Todennus vaaditaan aktiivisten istuntojen, käyttäjien ja paikkojen "
-"hallintaan."
 
 #: src/timedate/org.freedesktop.timedate1.policy:22
 msgid "Set system time"

po/fr.po

@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2024-11-06 14:42+0000\n"
-"PO-Revision-Date: 2024-11-07 09:30+0000\n"
+"PO-Revision-Date: 2024-11-20 19:13+0000\n"
 "Last-Translator: Léane GRASSER <leane.grasser@proton.me>\n"
 "Language-Team: French <https://translate.fedoraproject.org/projects/systemd/"
 "main/fr/>\n"
@@ -360,8 +360,8 @@ msgid ""
 "Authentication is required to set the statically configured local hostname, "
 "as well as the pretty hostname."
 msgstr ""
-"Une authentification est requise pour définir le nom d'hôte local de manière "
+"Une authentification est requise pour définir le nom d'hôte local configuré "
-"statique, ainsi que le nom d'hôte familier."
+"de manière statique, ainsi que le nom d'hôte convivial."
 
 #: src/hostname/org.freedesktop.hostname1.policy:41
 msgid "Set machine information"

po/sl.po

@@ -7,7 +7,7 @@ msgstr ""
 "Project-Id-Version: systemd\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2024-11-06 14:42+0000\n"
-"PO-Revision-Date: 2024-08-26 19:38+0000\n"
+"PO-Revision-Date: 2024-11-20 19:13+0000\n"
 "Last-Translator: Martin Srebotnjak <miles@filmsi.net>\n"
 "Language-Team: Slovenian <https://translate.fedoraproject.org/projects/"
 "systemd/main/sl/>\n"
@@ -17,7 +17,7 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=4; plural=n%100==1 ? 0 : n%100==2 ? 1 : n%100==3 || "
 "n%100==4 ? 2 : 3;\n"
-"X-Generator: Weblate 5.7\n"
+"X-Generator: Weblate 5.8.2\n"
 
 #: src/core/org.freedesktop.systemd1.policy.in:22
 msgid "Send passphrase back to system"
@@ -125,16 +125,13 @@ msgstr ""
 "območja."
 
 #: src/home/org.freedesktop.home1.policy:53
-#, fuzzy
 msgid "Update your home area"
 msgstr "Posodobite domače območje"
 
 #: src/home/org.freedesktop.home1.policy:54
-#, fuzzy
 msgid "Authentication is required to update your home area."
 msgstr ""
-"Preverjanje pristnosti je potrebno za posodobitev uporabnikovega domačega "
+"Preverjanje pristnosti je potrebno za posodobitev vašega domačega območja."
-"območja."
 
 #: src/home/org.freedesktop.home1.policy:63
 msgid "Resize a home area"
@@ -1234,14 +1231,12 @@ msgstr ""
 
 #: src/sysupdate/org.freedesktop.sysupdate1.policy:75
 msgid "Manage optional features"
-msgstr ""
+msgstr "Upravljaj dodatne funkcionalnosti"
 
 #: src/sysupdate/org.freedesktop.sysupdate1.policy:76
-#, fuzzy
 msgid "Authentication is required to manage optional features"
 msgstr ""
-"Preverjanje pristnosti je potrebno za upravljanje aktivnih sej, uporabnikov "
+"Preverjanje pristnosti je potrebno za upravljanje dodatnih funkcionalnosti."
-"in delovišč."
 
 #: src/timedate/org.freedesktop.timedate1.policy:22
 msgid "Set system time"

po/uk.po

@@ -4,12 +4,13 @@
 # Eugene Melnik <jeka7js@gmail.com>, 2014.
 # Daniel Korostil <ted.korostiled@gmail.com>, 2014, 2016, 2018.
 # Yuri Chornoivan <yurchor@ukr.net>, 2019, 2020, 2021, 2022, 2023, 2024.
+# Dmytro Markevych <hotr1pak@gmail.com>, 2024.
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2024-11-06 14:42+0000\n"
-"PO-Revision-Date: 2024-08-24 10:36+0000\n"
+"PO-Revision-Date: 2024-11-20 19:13+0000\n"
-"Last-Translator: Yuri Chornoivan <yurchor@ukr.net>\n"
+"Last-Translator: Dmytro Markevych <hotr1pak@gmail.com>\n"
 "Language-Team: Ukrainian <https://translate.fedoraproject.org/projects/"
 "systemd/main/uk/>\n"
 "Language: uk\n"
@@ -18,7 +19,7 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : n%10>=2 && "
 "n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;\n"
-"X-Generator: Weblate 5.7\n"
+"X-Generator: Weblate 5.8.2\n"
 
 #: src/core/org.freedesktop.systemd1.policy.in:22
 msgid "Send passphrase back to system"
@@ -118,14 +119,12 @@ msgid "Authentication is required to update a user's home area."
 msgstr "Для оновлення домашньої теки користувача слід пройти розпізнавання."
 
 #: src/home/org.freedesktop.home1.policy:53
-#, fuzzy
 msgid "Update your home area"
-msgstr "Оновлення домашньої теки"
+msgstr "Оновіть свій домашній простір"
 
 #: src/home/org.freedesktop.home1.policy:54
-#, fuzzy
 msgid "Authentication is required to update your home area."
-msgstr "Для оновлення домашньої теки користувача слід пройти розпізнавання."
+msgstr "Для оновлення домашньої області потрібна автентифікація."
 
 #: src/home/org.freedesktop.home1.policy:63
 msgid "Resize a home area"
@@ -1212,14 +1211,11 @@ msgstr "Для вилучення застарілих оновлень сист
 
 #: src/sysupdate/org.freedesktop.sysupdate1.policy:75
 msgid "Manage optional features"
-msgstr ""
+msgstr "Керування додатковими функціями"
 
 #: src/sysupdate/org.freedesktop.sysupdate1.policy:76
-#, fuzzy
 msgid "Authentication is required to manage optional features"
-msgstr ""
+msgstr "Для керування додатковими функціями потрібна автентифікація"
-"Для того, щоб керувати сеансами, користувачами і робочими місцями, слід "
-"пройти розпізнавання."
 
 #: src/timedate/org.freedesktop.timedate1.policy:22
 msgid "Set system time"

src/basic/cgroup-util.c

@@ -799,16 +799,20 @@ int cg_pid_get_path(const char *controller, pid_t pid, char **ret_path) {
                                 continue;
                 }
 
-                char *path = strdup(e + 1);
+                _cleanup_free_ char *path = strdup(e + 1);
                 if (!path)
                         return -ENOMEM;
 
+                /* Refuse cgroup paths from outside our cgroup namespace */
+                if (startswith(path, "/../"))
+                        return -EUNATCH;
+
                 /* Truncate suffix indicating the process is a zombie */
                 e = endswith(path, " (deleted)");
                 if (e)
                         *e = 0;
 
-                *ret_path = path;
+                *ret_path = TAKE_PTR(path);
                 return 0;
         }
 }

src/basic/process-util.c

@@ -102,8 +102,8 @@ int pid_get_comm(pid_t pid, char **ret) {
         _cleanup_free_ char *escaped = NULL, *comm = NULL;
         int r;
 
-        assert(ret);
         assert(pid >= 0);
+        assert(ret);
 
         if (pid == 0 || pid == getpid_cached()) {
                 comm = new0(char, TASK_COMM_LEN + 1); /* Must fit in 16 byte according to prctl(2) */
@@ -143,6 +143,9 @@ int pidref_get_comm(const PidRef *pid, char **ret) {
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         r = pid_get_comm(pid->pid, &comm);
         if (r < 0)
                 return r;
@@ -289,6 +292,9 @@ int pidref_get_cmdline(const PidRef *pid, size_t max_columns, ProcessCmdlineFlag
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         r = pid_get_cmdline(pid->pid, max_columns, flags, &s);
         if (r < 0)
                 return r;
@@ -331,6 +337,9 @@ int pidref_get_cmdline_strv(const PidRef *pid, ProcessCmdlineFlags flags, char *
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         r = pid_get_cmdline_strv(pid->pid, flags, &args);
         if (r < 0)
                 return r;
@@ -477,6 +486,9 @@ int pidref_is_kernel_thread(const PidRef *pid) {
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         result = pid_is_kernel_thread(pid->pid);
         if (result < 0)
                 return result;
@@ -594,6 +606,9 @@ int pidref_get_uid(const PidRef *pid, uid_t *ret) {
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         r = pid_get_uid(pid->pid, &uid);
         if (r < 0)
                 return r;
@@ -794,6 +809,9 @@ int pidref_get_start_time(const PidRef *pid, usec_t *ret) {
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         r = pid_get_start_time(pid->pid, ret ? &t : NULL);
         if (r < 0)
                 return r;
@@ -1093,6 +1111,9 @@ int pidref_is_my_child(const PidRef *pid) {
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         result = pid_is_my_child(pid->pid);
         if (result < 0)
                 return result;
@@ -1128,6 +1149,9 @@ int pidref_is_unwaited(const PidRef *pid) {
         if (!pidref_is_set(pid))
                 return -ESRCH;
 
+        if (pidref_is_remote(pid))
+                return -EREMOTE;
+
         if (pid->pid == 1 || pidref_is_self(pid))
                 return true;
 
@@ -1169,6 +1193,9 @@ int pidref_is_alive(const PidRef *pidref) {
         if (!pidref_is_set(pidref))
                 return -ESRCH;
 
+        if (pidref_is_remote(pidref))
+                return -EREMOTE;
+
         result = pid_is_alive(pidref->pid);
         if (result < 0) {
                 assert(result != -ESRCH);

src/basic/user-util.c

@@ -220,9 +220,9 @@ static int synthesize_user_creds(
                 if (ret_gid)
                         *ret_gid = GID_NOBODY;
                 if (ret_home)
-                        *ret_home = FLAGS_SET(flags, USER_CREDS_CLEAN) ? NULL : "/";
+                        *ret_home = FLAGS_SET(flags, USER_CREDS_SUPPRESS_PLACEHOLDER) ? NULL : "/";
                 if (ret_shell)
-                        *ret_shell = FLAGS_SET(flags, USER_CREDS_CLEAN) ? NULL : NOLOGIN;
+                        *ret_shell = FLAGS_SET(flags, USER_CREDS_SUPPRESS_PLACEHOLDER) ? NULL : NOLOGIN;
 
                 return 0;
         }
@@ -244,6 +244,7 @@ int get_user_creds(
 
         assert(username);
         assert(*username);
+        assert((ret_home || ret_shell) || !(flags & (USER_CREDS_SUPPRESS_PLACEHOLDER|USER_CREDS_CLEAN)));
 
         if (!FLAGS_SET(flags, USER_CREDS_PREFER_NSS) ||
             (!ret_home && !ret_shell)) {
@@ -315,17 +316,14 @@ int get_user_creds(
 
         if (ret_home)
                 /* Note: we don't insist on normalized paths, since there are setups that have /./ in the path */
-                *ret_home = (FLAGS_SET(flags, USER_CREDS_CLEAN) &&
+                *ret_home = (FLAGS_SET(flags, USER_CREDS_SUPPRESS_PLACEHOLDER) && empty_or_root(p->pw_dir)) ||
-                             (empty_or_root(p->pw_dir) ||
+                            (FLAGS_SET(flags, USER_CREDS_CLEAN) && (!path_is_valid(p->pw_dir) || !path_is_absolute(p->pw_dir)))
-                              !path_is_valid(p->pw_dir) ||
+                            ? NULL : p->pw_dir;
-                              !path_is_absolute(p->pw_dir))) ? NULL : p->pw_dir;
 
         if (ret_shell)
-                *ret_shell = (FLAGS_SET(flags, USER_CREDS_CLEAN) &&
+                *ret_shell = (FLAGS_SET(flags, USER_CREDS_SUPPRESS_PLACEHOLDER) && shell_is_placeholder(p->pw_shell)) ||
-                              (isempty(p->pw_shell) ||
+                             (FLAGS_SET(flags, USER_CREDS_CLEAN) && (!path_is_valid(p->pw_shell) || !path_is_absolute(p->pw_shell)))
-                               !path_is_valid(p->pw_shell) ||
+                             ? NULL : p->pw_shell;
-                               !path_is_absolute(p->pw_shell) ||
-                               is_nologin_shell(p->pw_shell))) ? NULL : p->pw_shell;
 
         if (patch_username)
                 *username = p->pw_name;

src/basic/user-util.h

@@ -12,6 +12,8 @@
 #include <sys/types.h>
 #include <unistd.h>
 
+#include "string-util.h"
+
 /* Users managed by systemd-homed. See https://systemd.io/UIDS-GIDS for details how this range fits into the rest of the world */
 #define HOME_UID_MIN ((uid_t) 60001)
 #define HOME_UID_MAX ((uid_t) 60513)
@@ -36,10 +38,20 @@ static inline int parse_gid(const char *s, gid_t *ret_gid) {
 char* getlogname_malloc(void);
 char* getusername_malloc(void);
 
+const char* default_root_shell_at(int rfd);
+const char* default_root_shell(const char *root);
+
+bool is_nologin_shell(const char *shell);
+
+static inline bool shell_is_placeholder(const char *shell) {
+        return isempty(shell) || is_nologin_shell(shell);
+}
+
 typedef enum UserCredsFlags {
-        USER_CREDS_PREFER_NSS    = 1 << 0,  /* if set, only synthesize user records if database lacks them. Normally we bypass the userdb entirely for the records we can synthesize */
+        USER_CREDS_PREFER_NSS           = 1 << 0,  /* if set, only synthesize user records if database lacks them. Normally we bypass the userdb entirely for the records we can synthesize */
-        USER_CREDS_ALLOW_MISSING = 1 << 1,  /* if a numeric UID string is resolved, be OK if there's no record for it */
+        USER_CREDS_ALLOW_MISSING        = 1 << 1,  /* if a numeric UID string is resolved, be OK if there's no record for it */
-        USER_CREDS_CLEAN         = 1 << 2,  /* try to clean up shell and home fields with invalid data */
+        USER_CREDS_CLEAN                = 1 << 2,  /* try to clean up shell and home fields with invalid data */
+        USER_CREDS_SUPPRESS_PLACEHOLDER = 1 << 3,  /* suppress home and/or shell fields if value is placeholder (root/empty/nologin) */
 } UserCredsFlags;
 
 int get_user_creds(const char **username, uid_t *ret_uid, gid_t *ret_gid, const char **ret_home, const char **ret_shell, UserCredsFlags flags);
@@ -125,10 +137,6 @@ int fgetsgent_sane(FILE *stream, struct sgrp **sg);
 int putsgent_sane(const struct sgrp *sg, FILE *stream);
 #endif
 
-bool is_nologin_shell(const char *shell);
-const char* default_root_shell_at(int rfd);
-const char* default_root_shell(const char *root);
-
 int is_this_me(const char *username);
 
 const char* get_home_root(void);

src/core/exec-invoke.c

@@ -855,9 +855,6 @@ static int get_fixed_user(
         assert(user_or_uid);
         assert(ret_username);
 
-        /* Note that we don't set $HOME or $SHELL if they are not particularly enlightening anyway
-         * (i.e. are "/" or "/bin/nologin"). */
-
         r = get_user_creds(&user_or_uid, ret_uid, ret_gid, ret_home, ret_shell, USER_CREDS_CLEAN);
         if (r < 0)
                 return r;
@@ -1883,7 +1880,10 @@ static int build_environment(
                 }
         }
 
-        if (home && set_user_login_env) {
+        /* Note that we don't set $HOME or $SHELL if they are not particularly enlightening anyway
+         * (i.e. are "/" or "/bin/nologin"). */
+
+        if (home && set_user_login_env && !empty_or_root(home)) {
                 x = strjoin("HOME=", home);
                 if (!x)
                         return -ENOMEM;
@@ -1892,7 +1892,7 @@ static int build_environment(
                 our_env[n_env++] = x;
         }
 
-        if (shell && set_user_login_env) {
+        if (shell && set_user_login_env && !shell_is_placeholder(shell)) {
                 x = strjoin("SHELL=", shell);
                 if (!x)
                         return -ENOMEM;
@@ -3471,20 +3471,16 @@ static int apply_working_directory(
                 const ExecContext *context,
                 const ExecParameters *params,
                 ExecRuntime *runtime,
-                const char *home,
+                const char *home) {
-                int *exit_status) {
 
         const char *wd;
         int r;
 
         assert(context);
-        assert(exit_status);
 
         if (context->working_directory_home) {
-                if (!home) {
+                if (!home)
-                        *exit_status = EXIT_CHDIR;
                         return -ENXIO;
-                }
 
                 wd = home;
         } else
@@ -3503,13 +3499,7 @@ static int apply_working_directory(
                 if (r >= 0)
                         r = RET_NERRNO(fchdir(dfd));
         }
-
+        return context->working_directory_missing_ok ? 0 : r;
-        if (r < 0 && !context->working_directory_missing_ok) {
-                *exit_status = EXIT_CHDIR;
-                return r;
-        }
-
-        return 0;
 }
 
 static int apply_root_directory(
@@ -3785,7 +3775,7 @@ static int acquire_home(const ExecContext *c, const char **home, char **ret_buf)
         if (!c->working_directory_home)
                 return 0;
 
-        if (c->dynamic_user)
+        if (c->dynamic_user || (c->user && is_this_me(c->user) <= 0))
                 return -EADDRNOTAVAIL;
 
         r = get_home_dir(ret_buf);
@@ -4543,7 +4533,7 @@ int exec_invoke(
         r = acquire_home(context, &home, &home_buffer);
         if (r < 0) {
                 *exit_status = EXIT_CHDIR;
-                return log_exec_error_errno(context, params, r, "Failed to determine $HOME for user: %m");
+                return log_exec_error_errno(context, params, r, "Failed to determine $HOME for the invoking user: %m");
         }
 
         /* If a socket is connected to STDIN/STDOUT/STDERR, we must drop O_NONBLOCK */
@@ -5382,9 +5372,11 @@ int exec_invoke(
          * running this service might have the correct privilege to change to the working directory. Also, it
          * is absolutely 💣 crucial 💣 we applied all mount namespacing rearrangements before this, so that
          * the cwd cannot be used to pin directories outside of the sandbox. */
-        r = apply_working_directory(context, params, runtime, home, exit_status);
+        r = apply_working_directory(context, params, runtime, home);
-        if (r < 0)
+        if (r < 0) {
+                *exit_status = EXIT_CHDIR;
                 return log_exec_error_errno(context, params, r, "Changing to the requested working directory failed: %m");
+        }
 
         if (needs_sandboxing) {
                 /* Apply other MAC contexts late, but before seccomp syscall filtering, as those should really be last to

src/cryptenroll/cryptenroll-fido2.c

@@ -193,7 +193,7 @@ int enroll_fido2(
                 fflush(stdout);
 
                 fprintf(stderr,
-                        "\nPlease save this FIDO2 credential ID. It is required when unloocking the volume\n"
+                        "\nPlease save this FIDO2 credential ID. It is required when unlocking the volume\n"
                         "using the associated FIDO2 keyslot which we just created. To configure automatic\n"
                         "unlocking using this FIDO2 token, add an appropriate entry to your /etc/crypttab\n"
                         "file, see %s for details.\n", link);

src/libsystemd/libsystemd.sym

@@ -1033,12 +1033,14 @@ global:
         sd_varlink_server_listen_fd;
         sd_varlink_server_loop_auto;
         sd_varlink_server_new;
+        sd_varlink_server_ref;
         sd_varlink_server_set_connections_max;
         sd_varlink_server_set_connections_per_uid_max;
         sd_varlink_server_set_description;
         sd_varlink_server_set_exit_on_idle;
         sd_varlink_server_set_userdata;
         sd_varlink_server_shutdown;
+        sd_varlink_server_unref;
         sd_varlink_set_allow_fd_passing_input;
         sd_varlink_set_allow_fd_passing_output;
         sd_varlink_set_description;

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

@@ -3265,7 +3265,7 @@ static sd_varlink_server* varlink_server_destroy(sd_varlink_server *s) {
         return mfree(s);
 }
 
-DEFINE_TRIVIAL_REF_UNREF_FUNC(sd_varlink_server, sd_varlink_server, varlink_server_destroy);
+DEFINE_PUBLIC_TRIVIAL_REF_UNREF_FUNC(sd_varlink_server, sd_varlink_server, varlink_server_destroy);
 
 static int validate_connection(sd_varlink_server *server, const struct ucred *ucred) {
         int allowed = -1;

src/login/logind-dbus.c

@@ -863,6 +863,27 @@ static int create_session(
         if (!uid_is_valid(uid))
                 return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UID");
 
+        if (isempty(type))
+                t = _SESSION_TYPE_INVALID;
+        else {
+                t = session_type_from_string(type);
+                if (t < 0)
+                        return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+                                                 "Invalid session type %s", type);
+        }
+
+        if (isempty(class))
+                c = _SESSION_CLASS_INVALID;
+        else {
+                c = session_class_from_string(class);
+                if (c < 0)
+                        return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+                                                 "Invalid session class %s", class);
+                if (c == SESSION_NONE)
+                        return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
+                                                "Refusing session class %s", class);
+        }
+
         if (flags != 0)
                 return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Flags must be zero.");
 
@@ -882,24 +903,6 @@ static int create_session(
         if (leader.pid == 1 || leader.pid == getpid_cached())
                 return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
 
-        if (isempty(type))
-                t = _SESSION_TYPE_INVALID;
-        else {
-                t = session_type_from_string(type);
-                if (t < 0)
-                        return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
-                                                 "Invalid session type %s", type);
-        }
-
-        if (isempty(class))
-                c = _SESSION_CLASS_INVALID;
-        else {
-                c = session_class_from_string(class);
-                if (c < 0)
-                        return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
-                                                 "Invalid session class %s", class);
-        }
-
         if (isempty(desktop))
                 desktop = NULL;
         else {

src/login/logind-session.h

@@ -29,6 +29,7 @@ typedef enum SessionClass {
         SESSION_BACKGROUND_LIGHT,   /* Like SESSION_BACKGROUND, but without the service manager */
         SESSION_MANAGER,            /* The service manager */
         SESSION_MANAGER_EARLY,      /* The service manager for root (which is allowed to run before systemd-user-sessions.service) */
+        SESSION_NONE,               /* A session not registered with logind */
         _SESSION_CLASS_MAX,
         _SESSION_CLASS_INVALID = -EINVAL,
 } SessionClass;
@@ -44,7 +45,7 @@ typedef enum SessionClass {
 #define SESSION_CLASS_WANTS_SERVICE_MANAGER(class) IN_SET((class), SESSION_USER, SESSION_USER_EARLY, SESSION_GREETER, SESSION_LOCK_SCREEN, SESSION_BACKGROUND)
 
 /* Which session classes can pin our user tracking? */
-#define SESSION_CLASS_PIN_USER(class) (!IN_SET((class), SESSION_MANAGER, SESSION_MANAGER_EARLY))
+#define SESSION_CLASS_PIN_USER(class) (!IN_SET((class), SESSION_MANAGER, SESSION_MANAGER_EARLY, SESSION_NONE))
 
 /* Which session classes decide whether system is idle? (should only cover sessions that have input, and are not idle screens themselves)*/
 #define SESSION_CLASS_CAN_IDLE(class) (IN_SET((class), SESSION_USER, SESSION_USER_EARLY, SESSION_GREETER))

src/login/pam_systemd.c

@@ -390,116 +390,108 @@ static int export_legacy_dbus_address(
 }
 
 static int append_session_memory_max(pam_handle_t *handle, sd_bus_message *m, const char *limit) {
-        uint64_t val;
         int r;
 
+        assert(handle);
+        assert(m);
+
         if (isempty(limit))
-                return PAM_SUCCESS;
+                return 0;
 
-        if (streq(limit, "infinity")) {
+        if (streq(limit, "infinity"))
-                r = sd_bus_message_append(m, "(sv)", "MemoryMax", "t", UINT64_MAX);
+                return sd_bus_message_append(m, "(sv)", "MemoryMax", "t", UINT64_MAX);
-                if (r < 0)
-                        return pam_bus_log_create_error(handle, r);
-
-                return PAM_SUCCESS;
-        }
 
         r = parse_permyriad(limit);
-        if (r >= 0) {
+        if (r < 0) {
-                r = sd_bus_message_append(m, "(sv)", "MemoryMaxScale", "u", UINT32_SCALE_FROM_PERMYRIAD(r));
+                uint64_t val;
-                if (r < 0)
+                r = parse_size(limit, 1024, &val);
-                        return pam_bus_log_create_error(handle, r);
+                if (r < 0) {
+                        pam_syslog(handle, LOG_WARNING, "Failed to parse systemd.memory_max, ignoring: %s", limit);
+                        return PAM_SUCCESS;
+                }
 
-                return PAM_SUCCESS;
+                return sd_bus_message_append(m, "(sv)", "MemoryMax", "t", val);
         }
 
-        r = parse_size(limit, 1024, &val);
+        return sd_bus_message_append(m, "(sv)", "MemoryMaxScale", "u", UINT32_SCALE_FROM_PERMYRIAD(r));
-        if (r >= 0) {
-                r = sd_bus_message_append(m, "(sv)", "MemoryMax", "t", val);
-                if (r < 0)
-                        return pam_bus_log_create_error(handle, r);
-
-                return PAM_SUCCESS;
-        }
-
-        pam_syslog(handle, LOG_WARNING, "Failed to parse systemd.memory_max, ignoring: %s", limit);
-        return PAM_SUCCESS;
 }
 
 static int append_session_runtime_max_sec(pam_handle_t *handle, sd_bus_message *m, const char *limit) {
-        usec_t val;
         int r;
 
+        assert(handle);
+        assert(m);
+
         /* No need to parse "infinity" here, it will be set by default later in scope_init() */
         if (isempty(limit) || streq(limit, "infinity"))
-                return PAM_SUCCESS;
+                return 0;
 
+        usec_t val;
         r = parse_sec(limit, &val);
-        if (r >= 0) {
+        if (r < 0) {
-                r = sd_bus_message_append(m, "(sv)", "RuntimeMaxUSec", "t", (uint64_t) val);
-                if (r < 0)
-                        return pam_bus_log_create_error(handle, r);
-        } else
                 pam_syslog(handle, LOG_WARNING, "Failed to parse systemd.runtime_max_sec: %s, ignoring.", limit);
+                return 0;
+        }
 
-        return PAM_SUCCESS;
+        return sd_bus_message_append(m, "(sv)", "RuntimeMaxUSec", "t", (uint64_t) val);
 }
 
 static int append_session_tasks_max(pam_handle_t *handle, sd_bus_message *m, const char *limit) {
-        uint64_t val;
         int r;
 
+        assert(handle);
+        assert(m);
+
         /* No need to parse "infinity" here, it will be set unconditionally later in manager_start_scope() */
         if (isempty(limit) || streq(limit, "infinity"))
-                return PAM_SUCCESS;
+                return 0;
 
+        uint64_t val;
         r = safe_atou64(limit, &val);
-        if (r >= 0) {
+        if (r < 0) {
-                r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", val);
-                if (r < 0)
-                        return pam_bus_log_create_error(handle, r);
-        } else
                 pam_syslog(handle, LOG_WARNING, "Failed to parse systemd.tasks_max, ignoring: %s", limit);
+                return 0;
+        }
 
-        return PAM_SUCCESS;
+        return sd_bus_message_append(m, "(sv)", "TasksMax", "t", val);
 }
 
 static int append_session_cpu_weight(pam_handle_t *handle, sd_bus_message *m, const char *limit) {
-        uint64_t val;
         int r;
 
-        if (isempty(limit))
+        assert(handle);
-                return PAM_SUCCESS;
+        assert(m);
 
+        if (isempty(limit))
+                return 0;
+
+        uint64_t val;
         r = cg_cpu_weight_parse(limit, &val);
-        if (r < 0)
+        if (r < 0) {
                 pam_syslog(handle, LOG_WARNING, "Failed to parse systemd.cpu_weight, ignoring: %s", limit);
-        else {
+                return 0;
-                r = sd_bus_message_append(m, "(sv)", "CPUWeight", "t", val);
-                if (r < 0)
-                        return pam_bus_log_create_error(handle, r);
         }
 
-        return PAM_SUCCESS;
+        return sd_bus_message_append(m, "(sv)", "CPUWeight", "t", val);
 }
 
 static int append_session_io_weight(pam_handle_t *handle, sd_bus_message *m, const char *limit) {
-        uint64_t val;
         int r;
 
-        if (isempty(limit))
+        assert(handle);
-                return PAM_SUCCESS;
+        assert(m);
 
+        if (isempty(limit))
+                return 0;
+
+        uint64_t val;
         r = cg_weight_parse(limit, &val);
-        if (r < 0)
+        if (r < 0) {
                 pam_syslog(handle, LOG_WARNING, "Failed to parse systemd.io_weight, ignoring: %s", limit);
-        else {
+                return 0;
-                r = sd_bus_message_append(m, "(sv)", "IOWeight", "t", val);
-                if (r < 0)
-                        return pam_bus_log_create_error(handle, r);
         }
 
-        return PAM_SUCCESS;
+        return sd_bus_message_append(m, "(sv)", "IOWeight", "t", val);
 }
 
 static const char* getenv_harder(pam_handle_t *handle, const char *key, const char *fallback) {
@@ -549,6 +541,26 @@ static bool getenv_harder_bool(pam_handle_t *handle, const char *key, bool fallb
         return r;
 }
 
+static uint32_t getenv_harder_uint32(pam_handle_t *handle, const char *key, uint32_t fallback) {
+        int r;
+
+        assert(handle);
+        assert(key);
+
+        const char *v = getenv_harder(handle, key, NULL);
+        if (isempty(v))
+                return fallback;
+
+        uint32_t u;
+        r = safe_atou32(v, &u);
+        if (r < 0) {
+                pam_syslog(handle, LOG_ERR, "Unsigned integer environment variable value of '%s' is not valid: %s", key, v);
+                return fallback;
+        }
+
+        return u;
+}
+
 static int update_environment(pam_handle_t *handle, const char *key, const char *value) {
         int r;
 
@@ -826,17 +838,15 @@ static uint64_t pick_default_capability_ambient_set(
 }
 
 typedef struct SessionContext {
-        const uid_t uid;
-        const pid_t pid;
         const char *service;
         const char *type;
         const char *class;
         const char *desktop;
         const char *seat;
-        const uint32_t vtnr;
+        uint32_t vtnr;
         const char *tty;
         const char *display;
-        const bool remote;
+        bool remote;
         const char *remote_user;
         const char *remote_host;
         const char *memory_max;
@@ -844,11 +854,13 @@ typedef struct SessionContext {
         const char *cpu_weight;
         const char *io_weight;
         const char *runtime_max_sec;
+        bool incomplete;
 } SessionContext;
 
 static int create_session_message(
                 sd_bus *bus,
                 pam_handle_t *handle,
+                UserRecord *ur,
                 const SessionContext *context,
                 bool avoid_pidfd,
                 sd_bus_message **ret) {
@@ -859,6 +871,7 @@ static int create_session_message(
 
         assert(bus);
         assert(handle);
+        assert(ur);
         assert(context);
         assert(ret);
 
@@ -872,21 +885,22 @@ static int create_session_message(
         if (r < 0)
                 return r;
 
-        r = sd_bus_message_append(m,
+        r = sd_bus_message_append(
-                                  pidfd >= 0 ? "uhsssssussbss" : "uusssssussbss",
+                        m,
-                                  (uint32_t) context->uid,
+                        pidfd >= 0 ? "uhsssssussbss" : "uusssssussbss",
-                                  pidfd >= 0 ? pidfd : context->pid,
+                        (uint32_t) ur->uid,
-                                  context->service,
+                        pidfd >= 0 ? pidfd : 0,
-                                  context->type,
+                        context->service,
-                                  context->class,
+                        context->type,
-                                  context->desktop,
+                        context->class,
-                                  context->seat,
+                        context->desktop,
-                                  context->vtnr,
+                        context->seat,
-                                  context->tty,
+                        context->vtnr,
-                                  context->display,
+                        context->tty,
-                                  context->remote,
+                        context->display,
-                                  context->remote_user,
+                        context->remote,
-                                  context->remote_host);
+                        context->remote_user,
+                        context->remote_host);
         if (r < 0)
                 return r;
 
@@ -901,23 +915,23 @@ static int create_session_message(
                 return r;
 
         r = append_session_memory_max(handle, m, context->memory_max);
-        if (r != PAM_SUCCESS)
+        if (r < 0)
                 return r;
 
         r = append_session_runtime_max_sec(handle, m, context->runtime_max_sec);
-        if (r != PAM_SUCCESS)
+        if (r < 0)
                 return r;
 
         r = append_session_tasks_max(handle, m, context->tasks_max);
-        if (r != PAM_SUCCESS)
+        if (r < 0)
                 return r;
 
         r = append_session_cpu_weight(handle, m, context->cpu_weight);
-        if (r != PAM_SUCCESS)
+        if (r < 0)
                 return r;
 
         r = append_session_io_weight(handle, m, context->io_weight);
-        if (r != PAM_SUCCESS)
+        if (r < 0)
                 return r;
 
         r = sd_bus_message_close_container(m);
@@ -928,10 +942,93 @@ static int create_session_message(
         return 0;
 }
 
-_public_ PAM_EXTERN int pam_sm_open_session(
+static void session_context_mangle(
                 pam_handle_t *handle,
-                int flags,
+                SessionContext *c,
-                int argc, const char **argv) {
+                UserRecord *ur,
+                bool debug) {
+
+        assert(handle);
+        assert(c);
+        assert(ur);
+
+        if (streq_ptr(c->service, "systemd-user")) {
+                /* If we detect that we are running in the "systemd-user" PAM stack, then let's patch the class to
+                 * 'manager' if not set, simply for robustness reasons. */
+                c->type = "unspecified";
+                c->class = IN_SET(user_record_disposition(ur), USER_INTRINSIC, USER_SYSTEM, USER_DYNAMIC) ?
+                        "manager-early" : "manager";
+                c->tty = NULL;
+
+        } else if (c->tty && strchr(c->tty, ':')) {
+                /* A tty with a colon is usually an X11 display, placed there to show up in utmp. We rearrange things
+                 * and don't pretend that an X display was a tty. */
+                if (isempty(c->display))
+                        c->display = c->tty;
+                c->tty = NULL;
+
+        } else if (streq_ptr(c->tty, "cron")) {
+                /* cron is setting PAM_TTY to "cron" for some reason (the commit carries no information why, but
+                 * probably because it wants to set it to something as pam_time/pam_access/… require PAM_TTY to be set
+                 * (as they otherwise even try to update it!) — but cron doesn't actually allocate a TTY for its forked
+                 * off processes.) */
+                c->type = "unspecified";
+                c->class = "background";
+                c->tty = NULL;
+
+        } else if (streq_ptr(c->tty, "ssh")) {
+                /* ssh has been setting PAM_TTY to "ssh" (for the same reason as cron does this, see above. For further
+                 * details look for "PAM_TTY_KLUDGE" in the openssh sources). */
+                c->type = "tty";
+                c->class = "user";
+                c->tty = NULL; /* This one is particularly sad, as this means that ssh sessions — even though
+                               * usually associated with a pty — won't be tracked by their tty in
+                               * logind. This is because ssh does the PAM session registration early for new
+                               * connections, and registers a pty only much later (this is because it doesn't
+                               * know yet if it needs one at all, as whether to register a pty or not is
+                               * negotiated much later in the protocol). */
+
+        } else if (c->tty)
+                /* Chop off leading /dev prefix that some clients specify, but others do not. */
+                c->tty = skip_dev_prefix(c->tty);
+
+        if (!isempty(c->display) && !c->vtnr) {
+                if (isempty(c->seat))
+                        (void) get_seat_from_display(c->display, &c->seat, &c->vtnr);
+                else if (streq(c->seat, "seat0"))
+                        (void) get_seat_from_display(c->display, /* seat= */ NULL, &c->vtnr);
+        }
+
+        if (c->seat && !streq(c->seat, "seat0") && c->vtnr != 0) {
+                pam_debug_syslog(handle, debug, "Ignoring vtnr %"PRIu32" for %s which is not seat0", c->vtnr, c->seat);
+                c->vtnr = 0;
+        }
+
+        if (isempty(c->type))
+                c->type = !isempty(c->display) ? "x11" :
+                              !isempty(c->tty) ? "tty" : "unspecified";
+
+        if (isempty(c->class))
+                c->class = streq(c->type, "unspecified") ? "background" :
+                        ((IN_SET(user_record_disposition(ur), USER_INTRINSIC, USER_SYSTEM, USER_DYNAMIC) &&
+                         streq(c->type, "tty")) ? "user-early" : "user");
+
+        if (c->incomplete) {
+                if (streq(c->class, "user"))
+                        c->class = "user-incomplete";
+                else
+                        pam_syslog_pam_error(handle, LOG_WARNING, 0, "PAM session of class '%s' is incomplete, which is not supported, ignoring.", c->class);
+        }
+
+        c->remote = !isempty(c->remote_host) && !is_localhost(c->remote_host);
+}
+
+static int register_session(
+                pam_handle_t *handle,
+                SessionContext *c,
+                UserRecord *ur,
+                bool debug,
+                char **ret_seat) {
 
         /* Let's release the D-Bus connection once this function exits, after all the session might live
          * quite a long time, and we are not going to process the bus connection in that time, so let's
@@ -939,152 +1036,21 @@ _public_ PAM_EXTERN int pam_sm_open_session(
         _cleanup_(pam_bus_data_disconnectp) PamBusData *d = NULL;
         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
-        const char
-                *id, *object_path, *runtime_path,
-                *service = NULL,
-                *tty = NULL, *display = NULL,
-                *remote_user = NULL, *remote_host = NULL,
-                *seat = NULL,
-                *type = NULL, *class = NULL,
-                *class_pam = NULL, *type_pam = NULL, *cvtnr = NULL, *desktop = NULL, *desktop_pam = NULL,
-                *memory_max = NULL, *tasks_max = NULL, *cpu_weight = NULL, *io_weight = NULL, *runtime_max_sec = NULL;
-        uint64_t default_capability_bounding_set = UINT64_MAX, default_capability_ambient_set = UINT64_MAX;
         _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
-        _cleanup_(user_record_unrefp) UserRecord *ur = NULL;
+        int r;
-        int session_fd = -EBADF, existing, r;
-        bool debug = false, remote, incomplete;
-        uint32_t vtnr = 0;
-        uid_t original_uid;
 
         assert(handle);
-
+        assert(c);
-        pam_log_setup();
+        assert(ur);
-
+        assert(ret_seat);
-        if (parse_argv(handle,
-                       argc, argv,
-                       &class_pam,
-                       &type_pam,
-                       &desktop_pam,
-                       &debug,
-                       &default_capability_bounding_set,
-                       &default_capability_ambient_set) < 0)
-                return PAM_SESSION_ERR;
-
-        pam_debug_syslog(handle, debug, "pam-systemd initializing");
-
-        r = acquire_user_record(handle, &ur);
-        if (r != PAM_SUCCESS)
-                return r;
 
         /* Make most of this a NOP on non-logind systems */
         if (!logind_running())
-                goto success;
+                goto skip;
 
-        r = pam_get_item_many(
+        /* We don't register session class none with logind */
-                        handle,
+        if (streq(c->class, "none"))
-                        PAM_SERVICE, &service,
+                goto skip;
-                        PAM_XDISPLAY, &display,
-                        PAM_TTY, &tty,
-                        PAM_RUSER, &remote_user,
-                        PAM_RHOST, &remote_host);
-        if (r != PAM_SUCCESS)
-                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM items: @PAMERR@");
-
-        seat = getenv_harder(handle, "XDG_SEAT", NULL);
-        cvtnr = getenv_harder(handle, "XDG_VTNR", NULL);
-        type = getenv_harder(handle, "XDG_SESSION_TYPE", type_pam);
-        class = getenv_harder(handle, "XDG_SESSION_CLASS", class_pam);
-        desktop = getenv_harder(handle, "XDG_SESSION_DESKTOP", desktop_pam);
-        incomplete = getenv_harder_bool(handle, "XDG_SESSION_INCOMPLETE", false);
-
-        if (streq_ptr(service, "systemd-user")) {
-                /* If we detect that we are running in the "systemd-user" PAM stack, then let's patch the class to
-                 * 'manager' if not set, simply for robustness reasons. */
-                type = "unspecified";
-                class = IN_SET(user_record_disposition(ur), USER_INTRINSIC, USER_SYSTEM, USER_DYNAMIC) ?
-                        "manager-early" : "manager";
-                tty = NULL;
-
-        } else if (tty && strchr(tty, ':')) {
-                /* A tty with a colon is usually an X11 display, placed there to show up in utmp. We rearrange things
-                 * and don't pretend that an X display was a tty. */
-                if (isempty(display))
-                        display = tty;
-                tty = NULL;
-
-        } else if (streq_ptr(tty, "cron")) {
-                /* cron is setting PAM_TTY to "cron" for some reason (the commit carries no information why, but
-                 * probably because it wants to set it to something as pam_time/pam_access/… require PAM_TTY to be set
-                 * (as they otherwise even try to update it!) — but cron doesn't actually allocate a TTY for its forked
-                 * off processes.) */
-                type = "unspecified";
-                class = "background";
-                tty = NULL;
-
-        } else if (streq_ptr(tty, "ssh")) {
-                /* ssh has been setting PAM_TTY to "ssh" (for the same reason as cron does this, see above. For further
-                 * details look for "PAM_TTY_KLUDGE" in the openssh sources). */
-                type = "tty";
-                class = "user";
-                tty = NULL; /* This one is particularly sad, as this means that ssh sessions — even though usually
-                             * associated with a pty — won't be tracked by their tty in logind. This is because ssh
-                             * does the PAM session registration early for new connections, and registers a pty only
-                             * much later (this is because it doesn't know yet if it needs one at all, as whether to
-                             * register a pty or not is negotiated much later in the protocol). */
-
-        } else if (tty)
-                /* Chop off leading /dev prefix that some clients specify, but others do not. */
-                tty = skip_dev_prefix(tty);
-
-        /* If this fails vtnr will be 0, that's intended */
-        if (!isempty(cvtnr))
-                (void) safe_atou32(cvtnr, &vtnr);
-
-        if (!isempty(display) && !vtnr) {
-                if (isempty(seat))
-                        (void) get_seat_from_display(display, &seat, &vtnr);
-                else if (streq(seat, "seat0"))
-                        (void) get_seat_from_display(display, NULL, &vtnr);
-        }
-
-        if (seat && !streq(seat, "seat0") && vtnr != 0) {
-                pam_debug_syslog(handle, debug, "Ignoring vtnr %"PRIu32" for %s which is not seat0", vtnr, seat);
-                vtnr = 0;
-        }
-
-        if (isempty(type))
-                type = !isempty(display) ? "x11" :
-                           !isempty(tty) ? "tty" : "unspecified";
-
-        if (isempty(class))
-                class = streq(type, "unspecified") ? "background" :
-                        ((IN_SET(user_record_disposition(ur), USER_INTRINSIC, USER_SYSTEM, USER_DYNAMIC) &&
-                         streq(type, "tty")) ? "user-early" : "user");
-
-        if (incomplete) {
-                if (streq(class, "user"))
-                        class = "user-incomplete";
-                else
-                        pam_syslog_pam_error(handle, LOG_WARNING, 0, "PAM session of class '%s' is incomplete, which is not supported, ignoring.", class);
-        }
-
-        remote = !isempty(remote_host) && !is_localhost(remote_host);
-
-        r = pam_get_data(handle, "systemd.memory_max", (const void **)&memory_max);
-        if (!IN_SET(r, PAM_SUCCESS, PAM_NO_MODULE_DATA))
-                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM systemd.memory_max data: @PAMERR@");
-        r = pam_get_data(handle, "systemd.tasks_max",  (const void **)&tasks_max);
-        if (!IN_SET(r, PAM_SUCCESS, PAM_NO_MODULE_DATA))
-                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM systemd.tasks_max data: @PAMERR@");
-        r = pam_get_data(handle, "systemd.cpu_weight", (const void **)&cpu_weight);
-        if (!IN_SET(r, PAM_SUCCESS, PAM_NO_MODULE_DATA))
-                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM systemd.cpu_weight data: @PAMERR@");
-        r = pam_get_data(handle, "systemd.io_weight",  (const void **)&io_weight);
-        if (!IN_SET(r, PAM_SUCCESS, PAM_NO_MODULE_DATA))
-                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM systemd.io_weight data: @PAMERR@");
-        r = pam_get_data(handle, "systemd.runtime_max_sec", (const void **)&runtime_max_sec);
-        if (!IN_SET(r, PAM_SUCCESS, PAM_NO_MODULE_DATA))
-                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM systemd.runtime_max_sec data: @PAMERR@");
 
         /* Talk to logind over the message bus */
         r = pam_acquire_bus_connection(handle, "pam-systemd", debug, &bus, &d);
@@ -1095,41 +1061,22 @@ _public_ PAM_EXTERN int pam_sm_open_session(
                          "Asking logind to create session: "
                          "uid="UID_FMT" pid="PID_FMT" service=%s type=%s class=%s desktop=%s seat=%s vtnr=%"PRIu32" tty=%s display=%s remote=%s remote_user=%s remote_host=%s",
                          ur->uid, getpid_cached(),
-                         strempty(service),
+                         strempty(c->service),
-                         type, class, strempty(desktop),
+                         c->type, c->class, strempty(c->desktop),
-                         strempty(seat), vtnr, strempty(tty), strempty(display),
+                         strempty(c->seat), c->vtnr, strempty(c->tty), strempty(c->display),
-                         yes_no(remote), strempty(remote_user), strempty(remote_host));
+                         yes_no(c->remote), strempty(c->remote_user), strempty(c->remote_host));
         pam_debug_syslog(handle, debug,
                          "Session limits: "
                          "memory_max=%s tasks_max=%s cpu_weight=%s io_weight=%s runtime_max_sec=%s",
-                         strna(memory_max), strna(tasks_max), strna(cpu_weight), strna(io_weight), strna(runtime_max_sec));
+                         strna(c->memory_max), strna(c->tasks_max), strna(c->cpu_weight), strna(c->io_weight), strna(c->runtime_max_sec));
 
-        const SessionContext context = {
+        r = create_session_message(
-                .uid = ur->uid,
+                        bus,
-                .pid = 0,
+                        handle,
-                .service = service,
+                        ur,
-                .type = type,
+                        c,
-                .class = class,
+                        /* avoid_pidfd = */ false,
-                .desktop = desktop,
+                        &m);
-                .seat = seat,
-                .vtnr = vtnr,
-                .tty = tty,
-                .display = display,
-                .remote = remote,
-                .remote_user = remote_user,
-                .remote_host = remote_host,
-                .memory_max = memory_max,
-                .tasks_max = tasks_max,
-                .cpu_weight = cpu_weight,
-                .io_weight = io_weight,
-                .runtime_max_sec = runtime_max_sec,
-        };
-
-        r = create_session_message(bus,
-                                   handle,
-                                   &context,
-                                   /* avoid_pidfd = */ false,
-                                   &m);
         if (r < 0)
                 return pam_bus_log_create_error(handle, r);
 
@@ -1142,7 +1089,8 @@ _public_ PAM_EXTERN int pam_sm_open_session(
                 m = sd_bus_message_unref(m);
                 r = create_session_message(bus,
                                            handle,
-                                           &context,
+                                           ur,
+                                           c,
                                            /* avoid_pidfd = */ true,
                                            &m);
                 if (r < 0)
@@ -1155,7 +1103,7 @@ _public_ PAM_EXTERN int pam_sm_open_session(
                         /* We are already in a session, don't do anything */
                         pam_debug_syslog(handle, debug,
                                          "Not creating session: %s", bus_error_message(&error, r));
-                        goto success;
+                        goto skip;
                 }
 
                 pam_syslog(handle, LOG_ERR,
@@ -1163,23 +1111,27 @@ _public_ PAM_EXTERN int pam_sm_open_session(
                 return PAM_SESSION_ERR;
         }
 
-        r = sd_bus_message_read(reply,
+        const char *id, *object_path, *runtime_path, *real_seat;
-                                "soshusub",
+        int session_fd = -EBADF, existing;
-                                &id,
+        uint32_t original_uid, real_vtnr;
-                                &object_path,
+        r = sd_bus_message_read(
-                                &runtime_path,
+                        reply,
-                                &session_fd,
+                        "soshusub",
-                                &original_uid,
+                        &id,
-                                &seat,
+                        &object_path,
-                                &vtnr,
+                        &runtime_path,
-                                &existing);
+                        &session_fd,
+                        &original_uid,
+                        &real_seat,
+                        &real_vtnr,
+                        &existing);
         if (r < 0)
                 return pam_bus_log_parse_error(handle, r);
 
         pam_debug_syslog(handle, debug,
                          "Reply from logind: "
                          "id=%s object_path=%s runtime_path=%s session_fd=%d seat=%s vtnr=%u original_uid=%u",
-                         id, object_path, runtime_path, session_fd, seat, vtnr, original_uid);
+                         id, object_path, runtime_path, session_fd, real_seat, real_vtnr, original_uid);
 
         /* Please update manager_default_environment() in core/manager.c accordingly if more session envvars
          * shall be added. */
@@ -1202,38 +1154,25 @@ _public_ PAM_EXTERN int pam_sm_open_session(
          * somewhere else (for example PAM module parameters). Let's now update the environment variables, so that this
          * data is inherited into the session processes, and programs can rely on them to be initialized. */
 
-        r = update_environment(handle, "XDG_SESSION_TYPE", type);
+        r = update_environment(handle, "XDG_SESSION_TYPE", c->type);
         if (r != PAM_SUCCESS)
                 return r;
 
-        r = update_environment(handle, "XDG_SESSION_CLASS", class);
+        r = update_environment(handle, "XDG_SESSION_CLASS", c->class);
         if (r != PAM_SUCCESS)
                 return r;
 
-        r = update_environment(handle, "XDG_SESSION_DESKTOP", desktop);
+        r = update_environment(handle, "XDG_SESSION_DESKTOP", c->desktop);
         if (r != PAM_SUCCESS)
                 return r;
 
-        r = update_environment(handle, "XDG_SEAT", seat);
+        r = update_environment(handle, "XDG_SEAT", real_seat);
         if (r != PAM_SUCCESS)
                 return r;
 
-        static const char *const propagate[] = {
+        if (real_vtnr > 0) {
-                "shell.prompt.prefix", "SHELL_PROMPT_PREFIX",
+                char buf[DECIMAL_STR_MAX(real_vtnr)];
-                "shell.prompt.suffix", "SHELL_PROMPT_SUFFIX",
+                sprintf(buf, "%u", real_vtnr);
-                "shell.welcome",       "SHELL_WELCOME",
-                NULL
-        };
-
-        STRV_FOREACH_PAIR(k, v, propagate) {
-                r = propagate_credential_to_environment(handle, *k, *v);
-                if (r != PAM_SUCCESS)
-                        return r;
-        }
-
-        if (vtnr > 0) {
-                char buf[DECIMAL_STR_MAX(vtnr)];
-                sprintf(buf, "%u", vtnr);
 
                 r = update_environment(handle, "XDG_VTNR", buf);
                 if (r != PAM_SUCCESS)
@@ -1255,9 +1194,115 @@ _public_ PAM_EXTERN int pam_sm_open_session(
                 TAKE_FD(fd);
         }
 
-success:
+        /* Everything worked, hence let's patch in the data we learned. Since 'real_set' points into the
+         * D-Bus message, let's copy it and return it as a buffer */
+        char *rs = strdup(real_seat);
+        if (!rs)
+                return pam_log_oom(handle);
+
+        c->seat = *ret_seat = rs;
+        c->vtnr = real_vtnr;
+
+        return PAM_SUCCESS;
+
+skip:
+        *ret_seat = NULL;
+        return PAM_SUCCESS;
+}
+
+static int import_shell_credentials(pam_handle_t *handle) {
+
+        static const char *const propagate[] = {
+                "shell.prompt.prefix", "SHELL_PROMPT_PREFIX",
+                "shell.prompt.suffix", "SHELL_PROMPT_SUFFIX",
+                "shell.welcome",       "SHELL_WELCOME",
+                NULL
+        };
+        int r;
+
+        assert(handle);
+
+        STRV_FOREACH_PAIR(k, v, propagate) {
+                r = propagate_credential_to_environment(handle, *k, *v);
+                if (r != PAM_SUCCESS)
+                        return r;
+        }
+
+        return PAM_SUCCESS;
+}
+
+_public_ PAM_EXTERN int pam_sm_open_session(
+                pam_handle_t *handle,
+                int flags,
+                int argc, const char **argv) {
+
+        int r;
+
+        assert(handle);
+
+        pam_log_setup();
+
+        uint64_t default_capability_bounding_set = UINT64_MAX, default_capability_ambient_set = UINT64_MAX;
+        const char *class_pam = NULL, *type_pam = NULL, *desktop_pam = NULL;
+        bool debug = false;
+        if (parse_argv(handle,
+                       argc, argv,
+                       &class_pam,
+                       &type_pam,
+                       &desktop_pam,
+                       &debug,
+                       &default_capability_bounding_set,
+                       &default_capability_ambient_set) < 0)
+                return PAM_SESSION_ERR;
+
+        pam_debug_syslog(handle, debug, "pam-systemd initializing");
+
+        _cleanup_(user_record_unrefp) UserRecord *ur = NULL;
+        r = acquire_user_record(handle, &ur);
+        if (r != PAM_SUCCESS)
+                return r;
+
+        SessionContext c = {};
+        r = pam_get_item_many(
+                        handle,
+                        PAM_SERVICE,  &c.service,
+                        PAM_XDISPLAY, &c.display,
+                        PAM_TTY,      &c.tty,
+                        PAM_RUSER,    &c.remote_user,
+                        PAM_RHOST,    &c.remote_host);
+        if (r != PAM_SUCCESS)
+                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM items: @PAMERR@");
+
+        c.seat = getenv_harder(handle, "XDG_SEAT", NULL);
+        c.vtnr = getenv_harder_uint32(handle, "XDG_VTNR", 0);
+        c.type = getenv_harder(handle, "XDG_SESSION_TYPE", type_pam);
+        c.class = getenv_harder(handle, "XDG_SESSION_CLASS", class_pam);
+        c.desktop = getenv_harder(handle, "XDG_SESSION_DESKTOP", desktop_pam);
+        c.incomplete = getenv_harder_bool(handle, "XDG_SESSION_INCOMPLETE", false);
+
+        r = pam_get_data_many(
+                        handle,
+                        "systemd.memory_max",      &c.memory_max,
+                        "systemd.tasks_max",       &c.tasks_max,
+                        "systemd.cpu_weight",      &c.cpu_weight,
+                        "systemd.io_weight",       &c.io_weight,
+                        "systemd.runtime_max_sec", &c.runtime_max_sec);
+        if (r != PAM_SUCCESS)
+                return pam_syslog_pam_error(handle, LOG_ERR, r, "Failed to get PAM data: @PAMERR@");
+
+        session_context_mangle(handle, &c, ur, debug);
+
+        _cleanup_free_ char *seat_buffer = NULL;
+        r = register_session(handle, &c, ur, debug, &seat_buffer);
+        if (r != PAM_SUCCESS)
+                return r;
+
+        r = import_shell_credentials(handle);
+        if (r != PAM_SUCCESS)
+                return r;
+
         if (default_capability_ambient_set == UINT64_MAX)
-                default_capability_ambient_set = pick_default_capability_ambient_set(ur, service, seat);
+                default_capability_ambient_set = pick_default_capability_ambient_set(ur, c.service, c.seat);
 
         return apply_user_record_settings(handle, ur, debug, default_capability_bounding_set, default_capability_ambient_set);
 }

src/network/networkd-link.c

@@ -1443,6 +1443,7 @@ int link_reconfigure_impl(Link *link, LinkReconfigurationFlag flags) {
 }
 
 typedef struct LinkReconfigurationData {
+        Manager *manager;
         Link *link;
         LinkReconfigurationFlag flags;
         sd_bus_message *message;
@@ -1473,6 +1474,12 @@ static void link_reconfiguration_data_destroy_callback(LinkReconfigurationData *
                 }
 
                 if (!data->counter || *data->counter <= 0) {
+                        /* Update the state files before replying the bus method. Otherwise,
+                         * systemd-networkd-wait-online following networkctl reload/reconfigure may read an
+                         * outdated state file and wrongly handle an interface is already in the configured
+                         * state. */
+                        (void) manager_clean_all(data->manager);
+
                         r = sd_bus_reply_method_return(data->message, NULL);
                         if (r < 0)
                                 log_warning_errno(r, "Failed to reply for DBus method, ignoring: %m");
@@ -1521,6 +1528,7 @@ int link_reconfigure_full(Link *link, LinkReconfigurationFlag flags, sd_bus_mess
         }
 
         *data = (LinkReconfigurationData) {
+                .manager = link->manager,
                 .link = link_ref(link),
                 .flags = flags,
                 .message = sd_bus_message_ref(message), /* message may be NULL, but _ref() works fine. */

src/run/run.c

@@ -2297,7 +2297,8 @@ static int start_transient_scope(sd_bus *bus) {
                 uid_t uid;
                 gid_t gid;
 
-                r = get_user_creds(&arg_exec_user, &uid, &gid, &home, &shell, USER_CREDS_CLEAN|USER_CREDS_PREFER_NSS);
+                r = get_user_creds(&arg_exec_user, &uid, &gid, &home, &shell,
+                                   USER_CREDS_CLEAN|USER_CREDS_SUPPRESS_PLACEHOLDER|USER_CREDS_PREFER_NSS);
                 if (r < 0)
                         return log_error_errno(r, "Failed to resolve user %s: %m", arg_exec_user);
 

src/shared/killall.c

@@ -46,13 +46,17 @@ static bool argv_has_at(pid_t pid) {
         return c == '@';
 }
 
-static bool is_survivor_cgroup(const PidRef *pid) {
+static bool is_in_survivor_cgroup(const PidRef *pid) {
         _cleanup_free_ char *cgroup_path = NULL;
         int r;
 
         assert(pidref_is_set(pid));
 
         r = cg_pidref_get_path(/* root= */ NULL, pid, &cgroup_path);
+        if (r == -EUNATCH) {
+                log_warning_errno(r, "Process " PID_FMT " appears to originate in foreign namespace, ignoring.", pid->pid);
+                return true;
+        }
         if (r < 0) {
                 log_warning_errno(r, "Failed to get cgroup path of process " PID_FMT ", ignoring: %m", pid->pid);
                 return false;
@@ -86,7 +90,7 @@ static bool ignore_proc(const PidRef *pid, bool warn_rootfs) {
                 return true; /* also ignore processes where we can't determine this */
 
         /* Ignore processes that are part of a cgroup marked with the user.survive_final_kill_signal xattr */
-        if (is_survivor_cgroup(pid))
+        if (is_in_survivor_cgroup(pid))
                 return true;
 
         r = pidref_get_uid(pid, &uid);

src/shared/pam-util.c

@@ -253,17 +253,17 @@ int pam_get_item_many_internal(pam_handle_t *handle, ...) {
         va_list ap;
         int r;
 
+        assert(handle);
+
         va_start(ap, handle);
         for (;;) {
                 int item_type = va_arg(ap, int);
-
                 if (item_type <= 0) {
                         r = PAM_SUCCESS;
                         break;
                 }
 
                 const void **value = ASSERT_PTR(va_arg(ap, const void **));
-
                 r = pam_get_item(handle, item_type, value);
                 if (!IN_SET(r, PAM_BAD_ITEM, PAM_SUCCESS))
                         break;
@@ -273,6 +273,30 @@ int pam_get_item_many_internal(pam_handle_t *handle, ...) {
         return r;
 }
 
+int pam_get_data_many_internal(pam_handle_t *handle, ...) {
+        va_list ap;
+        int r;
+
+        assert(handle);
+
+        va_start(ap, handle);
+        for (;;) {
+                const char *data_name = va_arg(ap, const char *);
+                if (!data_name) {
+                        r = PAM_SUCCESS;
+                        break;
+                }
+
+                const void **value = ASSERT_PTR(va_arg(ap, const void **));
+                r = pam_get_data(handle, data_name, value);
+                if (!IN_SET(r, PAM_NO_MODULE_DATA, PAM_SUCCESS))
+                        break;
+        }
+        va_end(ap);
+
+        return r;
+}
+
 int pam_prompt_graceful(pam_handle_t *handle, int style, char **ret_response, const char *fmt, ...) {
         va_list args;
         int r;

src/shared/pam-util.h

@@ -44,7 +44,9 @@ int pam_get_bus_data(pam_handle_t *handle, const char *module_name, PamBusData *
 void pam_cleanup_free(pam_handle_t *handle, void *data, int error_status);
 
 int pam_get_item_many_internal(pam_handle_t *handle, ...);
-
 #define pam_get_item_many(handle, ...) pam_get_item_many_internal(handle, __VA_ARGS__, -1)
 
+int pam_get_data_many_internal(pam_handle_t *handle, ...);
+#define pam_get_data_many(handle, ...) pam_get_data_many_internal(handle, __VA_ARGS__, NULL)
+
 int pam_prompt_graceful(pam_handle_t *handle, int style, char **ret_response, const char *fmt, ...) _printf_(4,5);

src/test/test-audit-util.c

@@ -7,24 +7,26 @@ TEST(audit_loginuid_from_pid) {
         _cleanup_(pidref_done) PidRef self = PIDREF_NULL, pid1 = PIDREF_NULL;
         int r;
 
-        assert_se(pidref_set_self(&self) >= 0);
+        ASSERT_OK(pidref_set_self(&self));
-        assert_se(pidref_set_pid(&pid1, 1) >= 0);
+        ASSERT_OK(pidref_set_pid(&pid1, 1));
 
         uid_t uid;
         r = audit_loginuid_from_pid(&self, &uid);
-        assert_se(r >= 0 || r == -ENODATA);
+        if (r != -ENODATA)
+                ASSERT_OK(r);
         if (r >= 0)
                 log_info("self audit login uid: " UID_FMT, uid);
 
-        assert_se(audit_loginuid_from_pid(&pid1, &uid) == -ENODATA);
+        ASSERT_ERROR(audit_loginuid_from_pid(&pid1, &uid), ENODATA);
 
         uint32_t sessionid;
         r = audit_session_from_pid(&self, &sessionid);
-        assert_se(r >= 0 || r == -ENODATA);
+        if (r != -ENODATA)
+                ASSERT_OK(r);
         if (r >= 0)
                 log_info("self audit session id: %" PRIu32, sessionid);
 
-        assert_se(audit_session_from_pid(&pid1, &sessionid) == -ENODATA);
+        ASSERT_ERROR(audit_session_from_pid(&pid1, &sessionid), ENODATA);
 }
 
 static int intro(void) {

test/test-network/systemd-networkd-tests.py

@@ -6406,11 +6406,11 @@ class NetworkdRATests(unittest.TestCase, Utilities):
 
         for i in [100, 200, 300, 512, 1024, 2048]:
             if i not in [metric_1, metric_2]:
-                self.assertNotIn(f'{i}', output)
+                self.assertNotIn(f'metric {i} ', output)
 
         for i in ['low', 'medium', 'high']:
             if i not in [preference_1, preference_2]:
-                self.assertNotIn(f'{i}', output)
+                self.assertNotIn(f'pref {i}', output)
 
     def test_router_preference(self):
         copy_network_unit('25-veth-client.netdev',

test/units/TEST-07-PID1.working-directory.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+set -eux
+set -o pipefail
+
+# shellcheck source=test/units/util.sh
+. "$(dirname "$0")"/util.sh
+
+(! systemd-run --wait -p DynamicUser=yes \
+                      -p EnvironmentFile=-/usr/lib/systemd/systemd-asan-env \
+                      -p WorkingDirectory='~' true)
+
+assert_eq "$(systemd-run --pipe --uid=root -p WorkingDirectory='~' pwd)" "/root"
+assert_eq "$(systemd-run --pipe --uid=nobody -p WorkingDirectory='~' pwd)" "/"
+assert_eq "$(systemd-run --pipe --uid=testuser -p WorkingDirectory='~' pwd)" "/home/testuser"
+
+(! systemd-run --wait -p DynamicUser=yes -p User=testuser \
+                      -p EnvironmentFile=-/usr/lib/systemd/systemd-asan-env \
+                      -p WorkingDirectory='~' true)

units/systemd-confext.service

@@ -16,6 +16,7 @@ ConditionDirectoryNotEmpty=|/run/confexts
 ConditionDirectoryNotEmpty=|/var/lib/confexts
 ConditionDirectoryNotEmpty=|/usr/local/lib/confexts
 ConditionDirectoryNotEmpty=|/usr/lib/confexts
+ConditionDirectoryNotEmpty=|/.extra/confext
 
 DefaultDependencies=no
 After=local-fs.target