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-rw-r--r--TODO10
-rw-r--r--configure.ac22
-rw-r--r--man/nss-systemd.xml4
-rw-r--r--man/systemd.exec.xml37
-rw-r--r--man/systemd.service.xml8
-rw-r--r--src/basic/fileio.c17
-rw-r--r--src/basic/fs-util.c98
-rw-r--r--src/basic/fs-util.h3
-rw-r--r--src/core/automount.c2
-rw-r--r--src/core/busname.c6
-rw-r--r--src/core/execute.c27
-rw-r--r--src/core/execute.h19
-rw-r--r--src/core/mount.c20
-rw-r--r--src/core/path.c2
-rw-r--r--src/core/scope.c4
-rw-r--r--src/core/service.c121
-rw-r--r--src/core/socket.c22
-rw-r--r--src/core/swap.c20
-rw-r--r--src/core/timer.c2
-rw-r--r--src/coredump/coredumpctl.c9
-rw-r--r--src/journal/journal-verify.c4
-rw-r--r--src/machine/machined-dbus.c2
-rw-r--r--src/nss-systemd/nss-systemd.c101
-rw-r--r--src/test/test-fs-util.c54
24 files changed, 417 insertions, 197 deletions
diff --git a/TODO b/TODO
index bb36522bf9..723292cde0 100644
--- a/TODO
+++ b/TODO
@@ -35,27 +35,17 @@ Features:
* RemoveIPC= in unit files for removing POSIX/SysV IPC objects
-* Set SERVICE_RESULT= as env var while running ExecStop=
-
* Introduce ProtectSystem=strict for making the entire OS hierarchy read-only
except for a select few
* nspawn: start UID allocation loop from hash of container name
-* in the DynamicUser=1 nss module, also map "nobody" and "root" statically
-
-* pid1: log about all processes we kill with with SIGKILL or in abandoned scopes, as this should normally not happen
-
* nspawn: support that /proc, /sys/, /dev are pre-mounted
-* nspawn: mount esp, so that bootctl can work
-
* define gpt header bits to select volatility mode
* nspawn: mount loopback filesystems with "discard"
-* Make TasksMax= take percentages, taken relative to the pids_max sysctl and pids.max cgroup limit
-
* ProtectKernelLogs= (drops CAP_SYSLOG, add seccomp for syslog() syscall, and DeviceAllow to /dev/kmsg) in service files
* ProtectClock= (drops CAP_SYS_TIMES, adds seecomp filters for settimeofday, adjtimex), sets DeviceAllow o /dev/rtc
diff --git a/configure.ac b/configure.ac
index a86deca471..4d1c96606f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -556,12 +556,30 @@ AC_SUBST(CERTIFICATEROOT)
AC_ARG_WITH([support-url],
AS_HELP_STRING([--with-support-url=URL],
- [Specify the supoport URL to show in catalog entries included in systemd]),
+ [Specify the support URL to show in catalog entries included in systemd]),
[SUPPORT_URL="$withval"],
[SUPPORT_URL=http://lists.freedesktop.org/mailman/listinfo/systemd-devel])
AC_SUBST(SUPPORT_URL)
+AC_ARG_WITH([nobody-user],
+ AS_HELP_STRING([--with-nobody-user=NAME],
+ [Specify the name of the nobody user (the one with UID 65534)]),
+ [NOBODY_USER_NAME="$withval"],
+ [NOBODY_USER_NAME=nobody])
+
+AC_SUBST(NOBODY_USER_NAME)
+AC_DEFINE_UNQUOTED(NOBODY_USER_NAME, ["$NOBODY_USER_NAME"], [The name of the nobody user (the one with UID 65534)])
+
+AC_ARG_WITH([nobody-group],
+ AS_HELP_STRING([--with-nobody-group=NAME],
+ [Specify the name of the nobody group (the one with GID 65534)]),
+ [NOBODY_GROUP_NAME="$withval"],
+ [NOBODY_GROUP_NAME=nobody])
+
+AC_SUBST(NOBODY_GROUP_NAME)
+AC_DEFINE_UNQUOTED(NOBODY_GROUP_NAME, ["$NOBODY_GROUP_NAME"], [The name of the nobody group (the one with GID 65534)])
+
# ------------------------------------------------------------------------------
have_xz=no
AC_ARG_ENABLE(xz, AS_HELP_STRING([--disable-xz], [Disable optional XZ support]))
@@ -1677,6 +1695,8 @@ AC_MSG_RESULT([
Maximum System GID: ${SYSTEM_GID_MAX}
Certificate root: ${CERTIFICATEROOT}
Support URL: ${SUPPORT_URL}
+ Nobody User Name: ${NOBODY_USER_NAME}
+ Nobody Group Name: ${NOBODY_GROUP_NAME}
CFLAGS: ${OUR_CFLAGS} ${CFLAGS}
CPPFLAGS: ${OUR_CPPFLAGS} ${CPPFLAGS}
diff --git a/man/nss-systemd.xml b/man/nss-systemd.xml
index 4228372e51..56d26e7d1f 100644
--- a/man/nss-systemd.xml
+++ b/man/nss-systemd.xml
@@ -61,6 +61,10 @@
<citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> for details on
this option.</para>
+ <para>This module also ensures that the root and nobody users and groups (i.e. the users/groups with the UIDs/GIDs
+ 0 and 65534) remain resolvable at all times, even if they aren't listed in <filename>/etc/passwd</filename> or
+ <filename>/etc/group</filename>, or if these files are missing.</para>
+
<para>To activate the NSS module, add <literal>systemd</literal> to the lines starting with
<literal>passwd:</literal> and <literal>group:</literal> in <filename>/etc/nsswitch.conf</filename>.</para>
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index 58ba582911..0fc658f180 100644
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -1602,6 +1602,43 @@
functions) if their standard output or standard error output is connected to the journal anyway, thus enabling
delivery of structured metadata along with logged messages.</para></listitem>
</varlistentry>
+
+ <varlistentry>
+ <term><varname>$SERVICE_RESULT</varname></term>
+
+ <listitem><para>Only defined for the service unit type, this environment variable is passed to all
+ <varname>ExecStop=</varname> and <varname>ExecStopPost=</varname> processes, and encodes the service
+ "result". Currently, the following values are defined: <literal>timeout</literal> (in case of an operation
+ timeout), <literal>exit-code</literal> (if a service process exited with a non-zero exit code; see
+ <varname>$EXIT_STATUS</varname> below for the actual exit status returned), <literal>signal</literal> (if a
+ service process was terminated abnormally by a signal; see <varname>$EXIT_STATUS</varname> below for the actual
+ signal used for the termination), <literal>core-dump</literal> (if a service process terminated abnormally and
+ dumped core), <literal>watchdog</literal> (if the watchdog keep-alive ping was enabled for the service but it
+ missed the deadline), or <literal>resources</literal> (a catch-all condition in case a system operation
+ failed).</para>
+
+ <para>This environment variable is useful to monitor failure or successful termination of a service. Even
+ though this variable is available in both <varname>ExecStop=</varname> and <varname>ExecStopPost=</varname>, it
+ is usually a better choice to place monitoring tools in the latter, as the former is only invoked for services
+ that managed to start up correctly, and the latter covers both services that failed during their start-up and
+ those which failed during their runtime.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>$EXIT_CODE</varname></term>
+ <term><varname>$EXIT_STATUS</varname></term>
+
+ <listitem><para>Only defined for the service unit type, these environment variables are passed to all
+ <varname>ExecStop=</varname>, <varname>ExecStopPost=</varname> processes and contain exit status/code
+ information of the main process of the service. For the precise definition of the exit code and status, see
+ <citerefentry><refentrytitle>wait</refentrytitle><manvolnum>2</manvolnum></citerefentry>. <varname>$EXIT_CODE</varname>
+ is one of <literal>exited</literal>, <literal>killed</literal>,
+ <literal>dumped</literal>. <varname>$EXIT_STATUS</varname> contains the numeric exit code formatted as string
+ if <varname>$EXIT_CODE</varname> is <literal>exited</literal>, and the signal name in all other cases. Note
+ that these environment variables are only set if the service manager succeeded to start and identify the main
+ process of the service.</para></listitem>
+ </varlistentry>
+
</variablelist>
<para>Additional variables may be configured by the following
diff --git a/man/systemd.service.xml b/man/systemd.service.xml
index 875d368fcf..e82edbe93e 100644
--- a/man/systemd.service.xml
+++ b/man/systemd.service.xml
@@ -429,7 +429,13 @@
service failed to start up correctly. Commands configured with this setting need to be able to operate even if
the service failed starting up half-way and left incompletely initialized data around. As the service's
processes have been terminated already when the commands specified with this setting are executed they should
- not attempt to communicate with them.</para></listitem>
+ not attempt to communicate with them.</para>
+
+ <para>Note that all commands that are configured with this setting are invoked with the result code of the
+ service, as well as the main process' exit code and status, set in the <varname>$SERVICE_RESULT</varname>,
+ <varname>$EXIT_CODE</varname> and <varname>$EXIT_STATUS</varname> environment variables, see
+ <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> for
+ details.</para></listitem>
</varlistentry>
<varlistentry>
diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index 588eacd77c..d642f3daea 100644
--- a/src/basic/fileio.c
+++ b/src/basic/fileio.c
@@ -1168,8 +1168,8 @@ int tempfn_random_child(const char *p, const char *extra, char **ret) {
char *t, *x;
uint64_t u;
unsigned i;
+ int r;
- assert(p);
assert(ret);
/* Turns this:
@@ -1178,6 +1178,12 @@ int tempfn_random_child(const char *p, const char *extra, char **ret) {
* /foo/bar/waldo/.#<extra>3c2b6219aa75d7d0
*/
+ if (!p) {
+ r = tmp_dir(&p);
+ if (r < 0)
+ return r;
+ }
+
if (!extra)
extra = "";
@@ -1264,10 +1270,13 @@ int fputs_with_space(FILE *f, const char *s, const char *separator, bool *space)
int open_tmpfile_unlinkable(const char *directory, int flags) {
char *p;
- int fd;
+ int fd, r;
- if (!directory)
- directory = "/tmp";
+ if (!directory) {
+ r = tmp_dir(&directory);
+ if (r < 0)
+ return r;
+ }
/* Returns an unlinked temporary file that cannot be linked into the file system anymore */
diff --git a/src/basic/fs-util.c b/src/basic/fs-util.c
index f0c6f3265e..ce87257bc1 100644
--- a/src/basic/fs-util.c
+++ b/src/basic/fs-util.c
@@ -496,34 +496,94 @@ int get_files_in_directory(const char *path, char ***list) {
return n;
}
-int var_tmp(char **ret) {
- const char *tmp_dir = NULL;
- const char *env_tmp_dir = NULL;
- char *c = NULL;
- int r;
+static int getenv_tmp_dir(const char **ret_path) {
+ const char *n;
+ int r, ret = 0;
- assert(ret);
+ assert(ret_path);
- env_tmp_dir = getenv("TMPDIR");
- if (env_tmp_dir != NULL) {
- r = is_dir(env_tmp_dir, true);
- if (r < 0 && r != -ENOENT)
- return r;
- if (r > 0)
- tmp_dir = env_tmp_dir;
+ /* We use the same order of environment variables python uses in tempfile.gettempdir():
+ * https://docs.python.org/3/library/tempfile.html#tempfile.gettempdir */
+ FOREACH_STRING(n, "TMPDIR", "TEMP", "TMP") {
+ const char *e;
+
+ e = secure_getenv(n);
+ if (!e)
+ continue;
+ if (!path_is_absolute(e)) {
+ r = -ENOTDIR;
+ goto next;
+ }
+ if (!path_is_safe(e)) {
+ r = -EPERM;
+ goto next;
+ }
+
+ r = is_dir(e, true);
+ if (r < 0)
+ goto next;
+ if (r == 0) {
+ r = -ENOTDIR;
+ goto next;
+ }
+
+ *ret_path = e;
+ return 1;
+
+ next:
+ /* Remember first error, to make this more debuggable */
+ if (ret >= 0)
+ ret = r;
}
- if (!tmp_dir)
- tmp_dir = "/var/tmp";
+ if (ret < 0)
+ return ret;
- c = strdup(tmp_dir);
- if (!c)
- return -ENOMEM;
- *ret = c;
+ *ret_path = NULL;
+ return ret;
+}
+static int tmp_dir_internal(const char *def, const char **ret) {
+ const char *e;
+ int r, k;
+
+ assert(def);
+ assert(ret);
+
+ r = getenv_tmp_dir(&e);
+ if (r > 0) {
+ *ret = e;
+ return 0;
+ }
+
+ k = is_dir(def, true);
+ if (k == 0)
+ k = -ENOTDIR;
+ if (k < 0)
+ return r < 0 ? r : k;
+
+ *ret = def;
return 0;
}
+int var_tmp_dir(const char **ret) {
+
+ /* Returns the location for "larger" temporary files, that is backed by physical storage if available, and thus
+ * even might survive a boot: /var/tmp. If $TMPDIR (or related environment variables) are set, its value is
+ * returned preferably however. Note that both this function and tmp_dir() below are affected by $TMPDIR,
+ * making it a variable that overrides all temporary file storage locations. */
+
+ return tmp_dir_internal("/var/tmp", ret);
+}
+
+int tmp_dir(const char **ret) {
+
+ /* Similar to var_tmp_dir() above, but returns the location for "smaller" temporary files, which is usually
+ * backed by an in-memory file system: /tmp. */
+
+ return tmp_dir_internal("/tmp", ret);
+}
+
int inotify_add_watch_fd(int fd, int what, uint32_t mask) {
char path[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
int r;
diff --git a/src/basic/fs-util.h b/src/basic/fs-util.h
index 075e5942b1..2c3b9a1c74 100644
--- a/src/basic/fs-util.h
+++ b/src/basic/fs-util.h
@@ -61,7 +61,8 @@ int mkfifo_atomic(const char *path, mode_t mode);
int get_files_in_directory(const char *path, char ***list);
-int var_tmp(char **ret);
+int tmp_dir(const char **ret);
+int var_tmp_dir(const char **ret);
#define INOTIFY_EVENT_MAX (sizeof(struct inotify_event) + NAME_MAX + 1)
diff --git a/src/core/automount.c b/src/core/automount.c
index 20a73c76f9..00295cf769 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -301,7 +301,7 @@ static void automount_dump(Unit *u, FILE *f, const char *prefix) {
static void automount_enter_dead(Automount *a, AutomountResult f) {
assert(a);
- if (f != AUTOMOUNT_SUCCESS)
+ if (a->result == AUTOMOUNT_SUCCESS)
a->result = f;
automount_set_state(a, a->result != AUTOMOUNT_SUCCESS ? AUTOMOUNT_FAILED : AUTOMOUNT_DEAD);
diff --git a/src/core/busname.c b/src/core/busname.c
index 730be2ee14..7952cd31aa 100644
--- a/src/core/busname.c
+++ b/src/core/busname.c
@@ -442,7 +442,7 @@ fail:
static void busname_enter_dead(BusName *n, BusNameResult f) {
assert(n);
- if (f != BUSNAME_SUCCESS)
+ if (n->result == BUSNAME_SUCCESS)
n->result = f;
busname_set_state(n, n->result != BUSNAME_SUCCESS ? BUSNAME_FAILED : BUSNAME_DEAD);
@@ -454,7 +454,7 @@ static void busname_enter_signal(BusName *n, BusNameState state, BusNameResult f
assert(n);
- if (f != BUSNAME_SUCCESS)
+ if (n->result == BUSNAME_SUCCESS)
n->result = f;
kill_context_init(&kill_context);
@@ -882,7 +882,7 @@ static void busname_sigchld_event(Unit *u, pid_t pid, int code, int status) {
log_unit_full(u, f == BUSNAME_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0,
"Control process exited, code=%s status=%i", sigchld_code_to_string(code), status);
- if (f != BUSNAME_SUCCESS)
+ if (n->result == BUSNAME_SUCCESS)
n->result = f;
switch (n->state) {
diff --git a/src/core/execute.c b/src/core/execute.c
index 77a75245cb..7aafb1b058 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -427,7 +427,7 @@ static int setup_input(
return STDIN_FILENO;
}
- i = fixup_input(context->std_input, socket_fd, params->apply_tty_stdin);
+ i = fixup_input(context->std_input, socket_fd, params->flags & EXEC_APPLY_TTY_STDIN);
switch (i) {
@@ -502,7 +502,7 @@ static int setup_output(
return STDERR_FILENO;
}
- i = fixup_input(context->std_input, socket_fd, params->apply_tty_stdin);
+ i = fixup_input(context->std_input, socket_fd, params->flags & EXEC_APPLY_TTY_STDIN);
o = fixup_output(context->std_output, socket_fd);
if (fileno == STDERR_FILENO) {
@@ -1425,7 +1425,7 @@ static int build_environment(
our_env[n_env++] = x;
}
- if (p->watchdog_usec > 0) {
+ if ((p->flags & EXEC_SET_WATCHDOG) && p->watchdog_usec > 0) {
if (asprintf(&x, "WATCHDOG_PID="PID_FMT, getpid()) < 0)
return -ENOMEM;
our_env[n_env++] = x;
@@ -1675,7 +1675,7 @@ static int exec_child(
exec_context_tty_reset(context, params);
- if (params->confirm_spawn) {
+ if (params->flags & EXEC_CONFIRM_SPAWN) {
char response;
r = ask_for_confirmation(&response, argv);
@@ -1940,7 +1940,7 @@ static int exec_child(
umask(context->umask);
- if (params->apply_permissions && !command->privileged) {
+ if ((params->flags & EXEC_APPLY_PERMISSIONS) && !command->privileged) {
r = enforce_groups(context, username, gid);
if (r < 0) {
*exit_status = EXIT_GROUP;
@@ -2010,7 +2010,7 @@ static int exec_child(
}
r = setup_namespace(
- params->apply_chroot ? context->root_directory : NULL,
+ (params->flags & EXEC_APPLY_CHROOT) ? context->root_directory : NULL,
context->read_write_paths,
context->read_only_paths,
context->inaccessible_paths,
@@ -2041,7 +2041,7 @@ static int exec_child(
else
wd = "/";
- if (params->apply_chroot) {
+ if (params->flags & EXEC_APPLY_CHROOT) {
if (!needs_mount_namespace && context->root_directory)
if (chroot(context->root_directory) < 0) {
*exit_status = EXIT_CHROOT;
@@ -2065,7 +2065,12 @@ static int exec_child(
}
#ifdef HAVE_SELINUX
- if (params->apply_permissions && mac_selinux_use() && params->selinux_context_net && socket_fd >= 0 && !command->privileged) {
+ if ((params->flags & EXEC_APPLY_PERMISSIONS) &&
+ mac_selinux_use() &&
+ params->selinux_context_net &&
+ socket_fd >= 0 &&
+ !command->privileged) {
+
r = mac_selinux_get_child_mls_label(socket_fd, command->path, context->selinux_context, &mac_selinux_context_net);
if (r < 0) {
*exit_status = EXIT_SELINUX_CONTEXT;
@@ -2090,7 +2095,7 @@ static int exec_child(
return r;
}
- if (params->apply_permissions && !command->privileged) {
+ if ((params->flags & EXEC_APPLY_PERMISSIONS) && !command->privileged) {
bool use_address_families = context->address_families_whitelist ||
!set_isempty(context->address_families);
@@ -2964,12 +2969,12 @@ void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix) {
"%sPID: "PID_FMT"\n",
prefix, s->pid);
- if (s->start_timestamp.realtime > 0)
+ if (dual_timestamp_is_set(&s->start_timestamp))
fprintf(f,
"%sStart Timestamp: %s\n",
prefix, format_timestamp(buf, sizeof(buf), s->start_timestamp.realtime));
- if (s->exit_timestamp.realtime > 0)
+ if (dual_timestamp_is_set(&s->exit_timestamp))
fprintf(f,
"%sExit Timestamp: %s\n"
"%sExit Code: %s\n"
diff --git a/src/core/execute.h b/src/core/execute.h
index 48cc18fbb3..2d05ca39aa 100644
--- a/src/core/execute.h
+++ b/src/core/execute.h
@@ -208,6 +208,19 @@ struct ExecContext {
bool no_new_privileges_set:1;
};
+typedef enum ExecFlags {
+ EXEC_CONFIRM_SPAWN = 1U << 0,
+ EXEC_APPLY_PERMISSIONS = 1U << 1,
+ EXEC_APPLY_CHROOT = 1U << 2,
+ EXEC_APPLY_TTY_STDIN = 1U << 3,
+
+ /* The following are not used by execute.c, but by consumers internally */
+ EXEC_PASS_FDS = 1U << 4,
+ EXEC_IS_CONTROL = 1U << 5,
+ EXEC_SETENV_RESULT = 1U << 6,
+ EXEC_SET_WATCHDOG = 1U << 7,
+} ExecFlags;
+
struct ExecParameters {
char **argv;
char **environment;
@@ -216,11 +229,7 @@ struct ExecParameters {
char **fd_names;
unsigned n_fds;
- bool apply_permissions:1;
- bool apply_chroot:1;
- bool apply_tty_stdin:1;
-
- bool confirm_spawn:1;
+ ExecFlags flags;
bool selinux_context_net:1;
bool cgroup_delegate:1;
diff --git a/src/core/mount.c b/src/core/mount.c
index afb20af9e2..f3ccf6d48a 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -701,12 +701,10 @@ static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
pid_t pid;
int r;
ExecParameters exec_params = {
- .apply_permissions = true,
- .apply_chroot = true,
- .apply_tty_stdin = true,
- .stdin_fd = -1,
- .stdout_fd = -1,
- .stderr_fd = -1,
+ .flags = EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN,
+ .stdin_fd = -1,
+ .stdout_fd = -1,
+ .stderr_fd = -1,
};
assert(m);
@@ -732,7 +730,7 @@ static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
return r;
exec_params.environment = UNIT(m)->manager->environment;
- exec_params.confirm_spawn = UNIT(m)->manager->confirm_spawn;
+ exec_params.flags |= UNIT(m)->manager->confirm_spawn ? EXEC_CONFIRM_SPAWN : 0;
exec_params.cgroup_supported = UNIT(m)->manager->cgroup_supported;
exec_params.cgroup_path = UNIT(m)->cgroup_path;
exec_params.cgroup_delegate = m->cgroup_context.delegate;
@@ -761,7 +759,7 @@ static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
static void mount_enter_dead(Mount *m, MountResult f) {
assert(m);
- if (f != MOUNT_SUCCESS)
+ if (m->result == MOUNT_SUCCESS)
m->result = f;
mount_set_state(m, m->result != MOUNT_SUCCESS ? MOUNT_FAILED : MOUNT_DEAD);
@@ -777,7 +775,7 @@ static void mount_enter_dead(Mount *m, MountResult f) {
static void mount_enter_mounted(Mount *m, MountResult f) {
assert(m);
- if (f != MOUNT_SUCCESS)
+ if (m->result == MOUNT_SUCCESS)
m->result = f;
mount_set_state(m, MOUNT_MOUNTED);
@@ -788,7 +786,7 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
assert(m);
- if (f != MOUNT_SUCCESS)
+ if (m->result == MOUNT_SUCCESS)
m->result = f;
r = unit_kill_context(
@@ -1160,7 +1158,7 @@ static void mount_sigchld_event(Unit *u, pid_t pid, int code, int status) {
else
assert_not_reached("Unknown code");
- if (f != MOUNT_SUCCESS)
+ if (m->result == MOUNT_SUCCESS)
m->result = f;
if (m->control_command) {
diff --git a/src/core/path.c b/src/core/path.c
index 0dd0d375d8..10f9b06974 100644
--- a/src/core/path.c
+++ b/src/core/path.c
@@ -454,7 +454,7 @@ static int path_coldplug(Unit *u) {
static void path_enter_dead(Path *p, PathResult f) {
assert(p);
- if (f != PATH_SUCCESS)
+ if (p->result == PATH_SUCCESS)
p->result = f;
path_set_state(p, p->result != PATH_SUCCESS ? PATH_FAILED : PATH_DEAD);
diff --git a/src/core/scope.c b/src/core/scope.c
index b45e238974..b278aed3d6 100644
--- a/src/core/scope.c
+++ b/src/core/scope.c
@@ -221,7 +221,7 @@ static void scope_dump(Unit *u, FILE *f, const char *prefix) {
static void scope_enter_dead(Scope *s, ScopeResult f) {
assert(s);
- if (f != SCOPE_SUCCESS)
+ if (s->result == SCOPE_SUCCESS)
s->result = f;
scope_set_state(s, s->result != SCOPE_SUCCESS ? SCOPE_FAILED : SCOPE_DEAD);
@@ -233,7 +233,7 @@ static void scope_enter_signal(Scope *s, ScopeState state, ScopeResult f) {
assert(s);
- if (f != SCOPE_SUCCESS)
+ if (s->result == SCOPE_SUCCESS)
s->result = f;
unit_watch_all_pids(UNIT(s));
diff --git a/src/core/service.c b/src/core/service.c
index 3c9455a5f8..4a37702f52 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1171,11 +1171,7 @@ static int service_spawn(
Service *s,
ExecCommand *c,
usec_t timeout,
- bool pass_fds,
- bool apply_permissions,
- bool apply_chroot,
- bool apply_tty_stdin,
- bool is_control,
+ ExecFlags flags,
pid_t *_pid) {
_cleanup_strv_free_ char **argv = NULL, **final_env = NULL, **our_env = NULL, **fd_names = NULL;
@@ -1185,12 +1181,10 @@ static int service_spawn(
pid_t pid;
ExecParameters exec_params = {
- .apply_permissions = apply_permissions,
- .apply_chroot = apply_chroot,
- .apply_tty_stdin = apply_tty_stdin,
- .stdin_fd = -1,
- .stdout_fd = -1,
- .stderr_fd = -1,
+ .flags = flags,
+ .stdin_fd = -1,
+ .stdout_fd = -1,
+ .stderr_fd = -1,
};
int r;
@@ -1199,6 +1193,14 @@ static int service_spawn(
assert(c);
assert(_pid);
+ if (flags & EXEC_IS_CONTROL) {
+ /* If this is a control process, mask the permissions/chroot application if this is requested. */
+ if (s->permissions_start_only)
+ exec_params.flags &= ~EXEC_APPLY_PERMISSIONS;
+ if (s->root_directory_start_only)
+ exec_params.flags &= ~EXEC_APPLY_CHROOT;
+ }
+
(void) unit_realize_cgroup(UNIT(s));
if (s->reset_cpu_usage) {
(void) unit_reset_cpu_usage(UNIT(s));
@@ -1213,7 +1215,7 @@ static int service_spawn(
if (r < 0)
return r;
- if (pass_fds ||
+ if ((flags & EXEC_PASS_FDS) ||
s->exec_context.std_input == EXEC_INPUT_SOCKET ||
s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
s->exec_context.std_error == EXEC_OUTPUT_SOCKET) {
@@ -1233,11 +1235,11 @@ static int service_spawn(
if (r < 0)
return r;
- our_env = new0(char*, 6);
+ our_env = new0(char*, 9);
if (!our_env)
return -ENOMEM;
- if (is_control ? s->notify_access == NOTIFY_ALL : s->notify_access != NOTIFY_NONE)
+ if ((flags & EXEC_IS_CONTROL) ? s->notify_access == NOTIFY_ALL : s->notify_access != NOTIFY_NONE)
if (asprintf(our_env + n_env++, "NOTIFY_SOCKET=%s", UNIT(s)->manager->notify_socket) < 0)
return -ENOMEM;
@@ -1245,7 +1247,7 @@ static int service_spawn(
if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0)
return -ENOMEM;
- if (!MANAGER_IS_SYSTEM(UNIT(s)->manager))
+ if (MANAGER_IS_USER(UNIT(s)->manager))
if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0)
return -ENOMEM;
@@ -1281,22 +1283,40 @@ static int service_spawn(
}
}
+ if (flags & EXEC_SETENV_RESULT) {
+ if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0)
+ return -ENOMEM;
+
+ if (s->main_exec_status.pid > 0 &&
+ dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
+ if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0)
+ return -ENOMEM;
+
+ if (s->main_exec_status.code == CLD_EXITED)
+ r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status);
+ else
+ r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status));
+ if (r < 0)
+ return -ENOMEM;
+ }
+ }
+
final_env = strv_env_merge(2, UNIT(s)->manager->environment, our_env, NULL);
if (!final_env)
return -ENOMEM;
- if (is_control && UNIT(s)->cgroup_path) {
+ if ((flags & EXEC_IS_CONTROL) && UNIT(s)->cgroup_path) {
path = strjoina(UNIT(s)->cgroup_path, "/control");
(void) cg_create(SYSTEMD_CGROUP_CONTROLLER, path);
} else
path = UNIT(s)->cgroup_path;
exec_params.argv = argv;
+ exec_params.environment = final_env;
exec_params.fds = fds;
exec_params.fd_names = fd_names;
exec_params.n_fds = n_fds;
- exec_params.environment = final_env;
- exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn;
+ exec_params.flags |= UNIT(s)->manager->confirm_spawn ? EXEC_CONFIRM_SPAWN : 0;
exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported;
exec_params.cgroup_path = path;
exec_params.cgroup_delegate = s->cgroup_context.delegate;
@@ -1422,7 +1442,7 @@ static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart)
int r;
assert(s);
- if (f != SERVICE_SUCCESS)
+ if (s->result == SERVICE_SUCCESS)
s->result = f;
service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
@@ -1471,7 +1491,7 @@ static void service_enter_stop_post(Service *s, ServiceResult f) {
int r;
assert(s);
- if (f != SERVICE_SUCCESS)
+ if (s->result == SERVICE_SUCCESS)
s->result = f;
service_unwatch_control_pid(s);
@@ -1484,11 +1504,7 @@ static void service_enter_stop_post(Service *s, ServiceResult f) {
r = service_spawn(s,
s->control_command,
s->timeout_stop_usec,
- false,
- !s->permissions_start_only,
- !s->root_directory_start_only,
- true,
- true,
+ EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_IS_CONTROL|EXEC_SETENV_RESULT,
&s->control_pid);
if (r < 0)
goto fail;
@@ -1528,7 +1544,7 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
assert(s);
- if (f != SERVICE_SUCCESS)
+ if (s->result == SERVICE_SUCCESS)
s->result = f;
unit_watch_all_pids(UNIT(s));
@@ -1586,7 +1602,7 @@ static void service_enter_stop(Service *s, ServiceResult f) {
assert(s);
- if (f != SERVICE_SUCCESS)
+ if (s->result == SERVICE_SUCCESS)
s->result = f;
service_unwatch_control_pid(s);
@@ -1599,11 +1615,7 @@ static void service_enter_stop(Service *s, ServiceResult f) {
r = service_spawn(s,
s->control_command,
s->timeout_stop_usec,
- false,
- !s->permissions_start_only,
- !s->root_directory_start_only,
- false,
- true,
+ EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_SETENV_RESULT,
&s->control_pid);
if (r < 0)
goto fail;
@@ -1642,7 +1654,7 @@ static bool service_good(Service *s) {
static void service_enter_running(Service *s, ServiceResult f) {
assert(s);
- if (f != SERVICE_SUCCESS)
+ if (s->result == SERVICE_SUCCESS)
s->result = f;
service_unwatch_control_pid(s);
@@ -1680,11 +1692,7 @@ static void service_enter_start_post(Service *s) {
r = service_spawn(s,
s->control_command,
s->timeout_start_usec,
- false,
- !s->permissions_start_only,
- !s->root_directory_start_only,
- false,
- true,
+ EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL,
&s->control_pid);
if (r < 0)
goto fail;
@@ -1754,11 +1762,7 @@ static void service_enter_start(Service *s) {
r = service_spawn(s,
c,
timeout,
- true,
- true,
- true,
- true,
- false,
+ EXEC_PASS_FDS|EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG,
&pid);
if (r < 0)
goto fail;
@@ -1817,11 +1821,7 @@ static void service_enter_start_pre(Service *s) {
r = service_spawn(s,
s->control_command,
s->timeout_start_usec,
- false,
- !s->permissions_start_only,
- !s->root_directory_start_only,
- true,
- true,
+ EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|EXEC_APPLY_TTY_STDIN,
&s->control_pid);
if (r < 0)
goto fail;
@@ -1896,11 +1896,7 @@ static void service_enter_reload(Service *s) {
r = service_spawn(s,
s->control_command,
s->timeout_start_usec,
- false,
- !s->permissions_start_only,
- !s->root_directory_start_only,
- false,
- true,
+ EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL,
&s->control_pid);
if (r < 0)
goto fail;
@@ -1938,12 +1934,9 @@ static void service_run_next_control(Service *s) {
r = service_spawn(s,
s->control_command,
timeout,
- false,
- !s->permissions_start_only,
- !s->root_directory_start_only,
- s->control_command_id == SERVICE_EXEC_START_PRE ||
- s->control_command_id == SERVICE_EXEC_STOP_POST,
- true,
+ EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_IS_CONTROL|
+ (IN_SET(s->control_command_id, SERVICE_EXEC_START_PRE, SERVICE_EXEC_STOP_POST) ? EXEC_APPLY_TTY_STDIN : 0)|
+ (IN_SET(s->control_command_id, SERVICE_EXEC_STOP, SERVICE_EXEC_STOP_POST) ? EXEC_SETENV_RESULT : 0),
&s->control_pid);
if (r < 0)
goto fail;
@@ -1981,11 +1974,7 @@ static void service_run_next_main(Service *s) {
r = service_spawn(s,
s->main_command,
s->timeout_start_usec,
- true,
- true,
- true,
- true,
- false,
+ EXEC_PASS_FDS|EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN|EXEC_SET_WATCHDOG,
&pid);
if (r < 0)
goto fail;
@@ -2656,7 +2645,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
"EXIT_STATUS=%i", status,
NULL);
- if (f != SERVICE_SUCCESS)
+ if (s->result == SERVICE_SUCCESS)
s->result = f;
if (s->main_command &&
@@ -2737,7 +2726,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
"Control process exited, code=%s status=%i",
sigchld_code_to_string(code), status);
- if (f != SERVICE_SUCCESS)
+ if (s->result == SERVICE_SUCCESS)
s->result = f;
/* Immediately get rid of the cgroup, so that the
diff --git a/src/core/socket.c b/src/core/socket.c
index 7f3f154a16..50872e8366 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -1749,12 +1749,10 @@ static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
pid_t pid;
int r;
ExecParameters exec_params = {
- .apply_permissions = true,
- .apply_chroot = true,
- .apply_tty_stdin = true,
- .stdin_fd = -1,
- .stdout_fd = -1,
- .stderr_fd = -1,
+ .flags = EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN,
+ .stdin_fd = -1,
+ .stdout_fd = -1,
+ .stderr_fd = -1,
};
assert(s);
@@ -1785,7 +1783,7 @@ static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
exec_params.argv = argv;
exec_params.environment = UNIT(s)->manager->environment;
- exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn;
+ exec_params.flags |= UNIT(s)->manager->confirm_spawn ? EXEC_CONFIRM_SPAWN : 0;
exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported;
exec_params.cgroup_path = UNIT(s)->cgroup_path;
exec_params.cgroup_delegate = s->cgroup_context.delegate;
@@ -1897,7 +1895,7 @@ fail:
static void socket_enter_dead(Socket *s, SocketResult f) {
assert(s);
- if (f != SOCKET_SUCCESS)
+ if (s->result == SOCKET_SUCCESS)
s->result = f;
socket_set_state(s, s->result != SOCKET_SUCCESS ? SOCKET_FAILED : SOCKET_DEAD);
@@ -1916,7 +1914,7 @@ static void socket_enter_stop_post(Socket *s, SocketResult f) {
int r;
assert(s);
- if (f != SOCKET_SUCCESS)
+ if (s->result == SOCKET_SUCCESS)
s->result = f;
socket_unwatch_control_pid(s);
@@ -1944,7 +1942,7 @@ static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) {
assert(s);
- if (f != SOCKET_SUCCESS)
+ if (s->result == SOCKET_SUCCESS)
s->result = f;
r = unit_kill_context(
@@ -1988,7 +1986,7 @@ static void socket_enter_stop_pre(Socket *s, SocketResult f) {
int r;
assert(s);
- if (f != SOCKET_SUCCESS)
+ if (s->result == SOCKET_SUCCESS)
s->result = f;
socket_unwatch_control_pid(s);
@@ -2770,7 +2768,7 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
"Control process exited, code=%s status=%i",
sigchld_code_to_string(code), status);
- if (f != SOCKET_SUCCESS)
+ if (s->result == SOCKET_SUCCESS)
s->result = f;
if (s->control_command &&
diff --git a/src/core/swap.c b/src/core/swap.c
index 66a318d01f..2c802da3b5 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -611,12 +611,10 @@ static int swap_spawn(Swap *s, ExecCommand *c, pid_t *_pid) {
pid_t pid;
int r;
ExecParameters exec_params = {
- .apply_permissions = true,
- .apply_chroot = true,
- .apply_tty_stdin = true,
- .stdin_fd = -1,
- .stdout_fd = -1,
- .stderr_fd = -1,
+ .flags = EXEC_APPLY_PERMISSIONS|EXEC_APPLY_CHROOT|EXEC_APPLY_TTY_STDIN,
+ .stdin_fd = -1,
+ .stdout_fd = -1,
+ .stderr_fd = -1,
};
assert(s);
@@ -642,7 +640,7 @@ static int swap_spawn(Swap *s, ExecCommand *c, pid_t *_pid) {
goto fail;
exec_params.environment = UNIT(s)->manager->environment;
- exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn;
+ exec_params.flags |= UNIT(s)->manager->confirm_spawn ? EXEC_CONFIRM_SPAWN : 0;
exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported;
exec_params.cgroup_path = UNIT(s)->cgroup_path;
exec_params.cgroup_delegate = s->cgroup_context.delegate;
@@ -675,7 +673,7 @@ fail:
static void swap_enter_dead(Swap *s, SwapResult f) {
assert(s);
- if (f != SWAP_SUCCESS)
+ if (s->result == SWAP_SUCCESS)
s->result = f;
swap_set_state(s, s->result != SWAP_SUCCESS ? SWAP_FAILED : SWAP_DEAD);
@@ -691,7 +689,7 @@ static void swap_enter_dead(Swap *s, SwapResult f) {
static void swap_enter_active(Swap *s, SwapResult f) {
assert(s);
- if (f != SWAP_SUCCESS)
+ if (s->result == SWAP_SUCCESS)
s->result = f;
swap_set_state(s, SWAP_ACTIVE);
@@ -702,7 +700,7 @@ static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) {
assert(s);
- if (f != SWAP_SUCCESS)
+ if (s->result == SWAP_SUCCESS)
s->result = f;
r = unit_kill_context(
@@ -999,7 +997,7 @@ static void swap_sigchld_event(Unit *u, pid_t pid, int code, int status) {
else
assert_not_reached("Unknown code");
- if (f != SWAP_SUCCESS)
+ if (s->result == SWAP_SUCCESS)
s->result = f;
if (s->control_command) {
diff --git a/src/core/timer.c b/src/core/timer.c
index 3206296f09..e2b43f02f8 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -291,7 +291,7 @@ static int timer_coldplug(Unit *u) {
static void timer_enter_dead(Timer *t, TimerResult f) {
assert(t);
- if (f != TIMER_SUCCESS)
+ if (t->result == TIMER_SUCCESS)
t->result = f;
timer_set_state(t, t->result != TIMER_SUCCESS ? TIMER_FAILED : TIMER_DEAD);
diff --git a/src/coredump/coredumpctl.c b/src/coredump/coredumpctl.c
index 27b1e0fb3f..bbf8793e57 100644
--- a/src/coredump/coredumpctl.c
+++ b/src/coredump/coredumpctl.c
@@ -30,6 +30,7 @@
#include "compress.h"
#include "fd-util.h"
#include "fileio.h"
+#include "fs-util.h"
#include "journal-internal.h"
#include "log.h"
#include "macro.h"
@@ -609,7 +610,13 @@ static int save_core(sd_journal *j, int fd, char **path, bool *unlink_temp) {
char *temp = NULL;
if (fd < 0) {
- temp = strdup("/var/tmp/coredump-XXXXXX");
+ const char *vt;
+
+ r = var_tmp_dir(&vt);
+ if (r < 0)
+ return log_error_errno(r, "Failed to acquire temporary directory path: %m");
+
+ temp = strjoin(vt, "/coredump-XXXXXX", NULL);
if (!temp)
return log_oom();
diff --git a/src/journal/journal-verify.c b/src/journal/journal-verify.c
index f61f158e8a..4105abfccc 100644
--- a/src/journal/journal-verify.c
+++ b/src/journal/journal-verify.c
@@ -826,7 +826,7 @@ int journal_file_verify(
int data_fd = -1, entry_fd = -1, entry_array_fd = -1;
unsigned i;
bool found_last = false;
- _cleanup_free_ char *tmp_dir = NULL;
+ const char *tmp_dir = NULL;
#ifdef HAVE_GCRYPT
uint64_t last_tag = 0;
@@ -846,7 +846,7 @@ int journal_file_verify(
} else if (f->seal)
return -ENOKEY;
- r = var_tmp(&tmp_dir);
+ r = var_tmp_dir(&tmp_dir);
if (r < 0) {
log_error_errno(r, "Failed to determine temporary directory: %m");
goto fail;
diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
index 1923e8b971..5e2462cba2 100644
--- a/src/machine/machined-dbus.c
+++ b/src/machine/machined-dbus.c
@@ -954,7 +954,7 @@ static int method_clean_pool(sd_bus_message *message, void *userdata, sd_bus_err
/* Create a temporary file we can dump information about deleted images into. We use a temporary file for this
* instead of a pipe or so, since this might grow quit large in theory and we don't want to process this
* continuously */
- result_fd = open_tmpfile_unlinkable("/tmp/", O_RDWR|O_CLOEXEC);
+ result_fd = open_tmpfile_unlinkable(NULL, O_RDWR|O_CLOEXEC);
if (result_fd < 0)
return -errno;
diff --git a/src/nss-systemd/nss-systemd.c b/src/nss-systemd/nss-systemd.c
index e7a4393bb0..7078c0c50c 100644
--- a/src/nss-systemd/nss-systemd.c
+++ b/src/nss-systemd/nss-systemd.c
@@ -26,9 +26,52 @@
#include "macro.h"
#include "nss-util.h"
#include "signal-util.h"
+#include "string-util.h"
#include "user-util.h"
#include "util.h"
+#ifndef NOBODY_USER_NAME
+#define NOBODY_USER_NAME "nobody"
+#endif
+
+#ifndef NOBODY_GROUP_NAME
+#define NOBODY_GROUP_NAME "nobody"
+#endif
+
+static const struct passwd root_passwd = {
+ .pw_name = (char*) "root",
+ .pw_passwd = (char*) "x", /* see shadow file */
+ .pw_uid = 0,
+ .pw_gid = 0,
+ .pw_gecos = (char*) "Super User",
+ .pw_dir = (char*) "/root",
+ .pw_shell = (char*) "/bin/sh",
+};
+
+static const struct passwd nobody_passwd = {
+ .pw_name = (char*) NOBODY_USER_NAME,
+ .pw_passwd = (char*) "*", /* locked */
+ .pw_uid = 65534,
+ .pw_gid = 65534,
+ .pw_gecos = (char*) "User Nobody",
+ .pw_dir = (char*) "/",
+ .pw_shell = (char*) "/sbin/nologin",
+};
+
+static const struct group root_group = {
+ .gr_name = (char*) "root",
+ .gr_gid = 0,
+ .gr_passwd = (char*) "x", /* see shadow file */
+ .gr_mem = (char*[]) { NULL },
+};
+
+static const struct group nobody_group = {
+ .gr_name = (char*) NOBODY_GROUP_NAME,
+ .gr_gid = 65534,
+ .gr_passwd = (char*) "*", /* locked */
+ .gr_mem = (char*[]) { NULL },
+};
+
NSS_GETPW_PROTOTYPES(systemd);
NSS_GETGR_PROTOTYPES(systemd);
@@ -50,6 +93,23 @@ enum nss_status _nss_systemd_getpwnam_r(
assert(name);
assert(pwd);
+ if (!valid_user_group_name(name)) {
+ r = -EINVAL;
+ goto fail;
+ }
+
+ /* Synthesize entries for the root and nobody users, in case they are missing in /etc/passwd */
+ if (streq(name, root_passwd.pw_name)) {
+ *pwd = root_passwd;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+ if (streq(name, nobody_passwd.pw_name)) {
+ *pwd = nobody_passwd;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+
/* Make sure that we don't go in circles when allocating a dynamic UID by checking our own database */
if (getenv_bool("SYSTEMD_NSS_DYNAMIC_BYPASS") > 0)
goto not_found;
@@ -126,6 +186,18 @@ enum nss_status _nss_systemd_getpwuid_r(
goto fail;
}
+ /* Synthesize data for the root user and for nobody in case they are missing from /etc/passwd */
+ if (uid == root_passwd.pw_uid) {
+ *pwd = root_passwd;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+ if (uid == nobody_passwd.pw_uid) {
+ *pwd = nobody_passwd;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+
if (uid <= SYSTEM_UID_MAX)
goto not_found;
@@ -202,6 +274,23 @@ enum nss_status _nss_systemd_getgrnam_r(
assert(name);
assert(gr);
+ if (!valid_user_group_name(name)) {
+ r = -EINVAL;
+ goto fail;
+ }
+
+ /* Synthesize records for root and nobody, in case they are missing form /etc/group */
+ if (streq(name, root_group.gr_name)) {
+ *gr = root_group;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+ if (streq(name, nobody_group.gr_name)) {
+ *gr = nobody_group;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+
if (getenv_bool("SYSTEMD_NSS_DYNAMIC_BYPASS") > 0)
goto not_found;
@@ -275,6 +364,18 @@ enum nss_status _nss_systemd_getgrgid_r(
goto fail;
}
+ /* Synthesize records for root and nobody, in case they are missing from /etc/group */
+ if (gid == root_group.gr_gid) {
+ *gr = root_group;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+ if (gid == nobody_group.gr_gid) {
+ *gr = nobody_group;
+ *errnop = 0;
+ return NSS_STATUS_SUCCESS;
+ }
+
if (gid <= SYSTEM_GID_MAX)
goto not_found;
diff --git a/src/test/test-fs-util.c b/src/test/test-fs-util.c
index e0c040f39b..93eec3ef9c 100644
--- a/src/test/test-fs-util.c
+++ b/src/test/test-fs-util.c
@@ -83,47 +83,35 @@ static void test_get_files_in_directory(void) {
}
static void test_var_tmp(void) {
- char *tmp_dir = NULL;
- char *tmpdir_backup = NULL;
- const char *default_var_tmp = NULL;
- const char *var_name;
- bool do_overwrite = true;
-
- default_var_tmp = "/var/tmp";
- var_name = "TMPDIR";
-
- if (getenv(var_name) != NULL) {
- tmpdir_backup = strdup(getenv(var_name));
- assert_se(tmpdir_backup != NULL);
- }
-
- unsetenv(var_name);
+ _cleanup_free_ char *tmpdir_backup = NULL;
+ const char *tmp_dir = NULL, *t;
- var_tmp(&tmp_dir);
- assert_se(!strcmp(tmp_dir, default_var_tmp));
-
- free(tmp_dir);
+ t = getenv("TMPDIR");
+ if (t) {
+ tmpdir_backup = strdup(t);
+ assert_se(tmpdir_backup);
+ }
- setenv(var_name, "/tmp", do_overwrite);
- assert_se(!strcmp(getenv(var_name), "/tmp"));
+ assert(unsetenv("TMPDIR") >= 0);
- var_tmp(&tmp_dir);
- assert_se(!strcmp(tmp_dir, "/tmp"));
+ assert_se(var_tmp_dir(&tmp_dir) >= 0);
+ assert_se(streq(tmp_dir, "/var/tmp"));
- free(tmp_dir);
+ assert_se(setenv("TMPDIR", "/tmp", true) >= 0);
+ assert_se(streq(getenv("TMPDIR"), "/tmp"));
- setenv(var_name, "/88_does_not_exist_88", do_overwrite);
- assert_se(!strcmp(getenv(var_name), "/88_does_not_exist_88"));
+ assert_se(var_tmp_dir(&tmp_dir) >= 0);
+ assert_se(streq(tmp_dir, "/tmp"));
- var_tmp(&tmp_dir);
- assert_se(!strcmp(tmp_dir, default_var_tmp));
+ assert_se(setenv("TMPDIR", "/88_does_not_exist_88", true) >= 0);
+ assert_se(streq(getenv("TMPDIR"), "/88_does_not_exist_88"));
- free(tmp_dir);
+ assert_se(var_tmp_dir(&tmp_dir) >= 0);
+ assert_se(streq(tmp_dir, "/var/tmp"));
- if (tmpdir_backup != NULL) {
- setenv(var_name, tmpdir_backup, do_overwrite);
- assert_se(!strcmp(getenv(var_name), tmpdir_backup));
- free(tmpdir_backup);
+ if (tmpdir_backup) {
+ assert_se(setenv("TMPDIR", tmpdir_backup, true) >= 0);
+ assert_se(streq(getenv("TMPDIR"), tmpdir_backup));
}
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-16 01:27:40 +0000