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-rw-r--r--src/basic/path-util.c2
-rw-r--r--src/libsystemd/sd-bus/GVARIANT-SERIALIZATION4
-rw-r--r--src/libsystemd/sd-bus/bus-common-errors.h1
-rw-r--r--src/login/logind-core.c4
-rw-r--r--src/login/logind-dbus.c58
-rw-r--r--src/login/logind-seat.c8
-rw-r--r--src/login/pam_systemd.c10
-rw-r--r--src/nspawn/nspawn.c5
8 files changed, 37 insertions, 55 deletions
diff --git a/src/basic/path-util.c b/src/basic/path-util.c
index 537705446a..8f49d65266 100644
--- a/src/basic/path-util.c
+++ b/src/basic/path-util.c
@@ -528,7 +528,7 @@ int fd_is_mount_point(int fd, const char *filename, int flags) {
*
* If that didn't work we will try to read the mount id from
* /proc/self/fdinfo/<fd>. This is almost as good as
- * name_to_handle_at(), however, does not return the the
+ * name_to_handle_at(), however, does not return the
* opaque file handle. The opaque file handle is pretty useful
* to detect the root directory, which we should always
* consider a mount point. Hence we use this only as
diff --git a/src/libsystemd/sd-bus/GVARIANT-SERIALIZATION b/src/libsystemd/sd-bus/GVARIANT-SERIALIZATION
index 859e2715f9..6aeb11364a 100644
--- a/src/libsystemd/sd-bus/GVARIANT-SERIALIZATION
+++ b/src/libsystemd/sd-bus/GVARIANT-SERIALIZATION
@@ -25,8 +25,8 @@ The header consists of the following:
= 12 bytes
-This header is then followed by the the fields array, whose first
-value is a 32bit array size.
+This header is then followed by the fields array, whose first value is
+a 32bit array size.
When using GVariant we keep the basic structure in place, only
slightly alter the header, and define protocol version '2'. The new
diff --git a/src/libsystemd/sd-bus/bus-common-errors.h b/src/libsystemd/sd-bus/bus-common-errors.h
index b17b62ac93..0dbfbddcf6 100644
--- a/src/libsystemd/sd-bus/bus-common-errors.h
+++ b/src/libsystemd/sd-bus/bus-common-errors.h
@@ -58,6 +58,7 @@
#define BUS_ERROR_DEVICE_NOT_TAKEN "org.freedesktop.login1.DeviceNotTaken"
#define BUS_ERROR_OPERATION_IN_PROGRESS "org.freedesktop.login1.OperationInProgress"
#define BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED "org.freedesktop.login1.SleepVerbNotSupported"
+#define BUS_ERROR_SESSION_BUSY "org.freedesktop.login1.SessionBusy"
#define BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED "org.freedesktop.timedate1.AutomaticTimeSyncEnabled"
diff --git a/src/login/logind-core.c b/src/login/logind-core.c
index a6c01f7d85..96a20e27b9 100644
--- a/src/login/logind-core.c
+++ b/src/login/logind-core.c
@@ -317,7 +317,6 @@ int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) {
int r;
assert(m);
- assert(session);
if (pid < 1)
return -EINVAL;
@@ -330,7 +329,8 @@ int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) {
if (!s)
return 0;
- *session = s;
+ if (session)
+ *session = s;
return 1;
}
diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index 659ce18a48..82654ee8c7 100644
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -689,47 +689,23 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus
return r;
}
- manager_get_session_by_pid(m, leader, &session);
- if (!session && vtnr > 0)
- session = (vtnr < m->seat0->position_count) ? m->seat0->positions[vtnr] : NULL;
- if (session) {
- _cleanup_free_ char *path = NULL;
- _cleanup_close_ int fifo_fd = -1;
-
- /* Session already exists, client is probably
- * something like "su" which changes uid but is still
- * the same session */
-
- fifo_fd = session_create_fifo(session);
- if (fifo_fd < 0)
- return fifo_fd;
-
- path = session_bus_path(session);
- if (!path)
- return -ENOMEM;
-
- log_debug("Sending reply about an existing session: "
- "id=%s object_path=%s uid=%u runtime_path=%s "
- "session_fd=%d seat=%s vtnr=%u",
- session->id,
- path,
- (uint32_t) session->user->uid,
- session->user->runtime_path,
- fifo_fd,
- session->seat ? session->seat->id : "",
- (uint32_t) session->vtnr);
-
- return sd_bus_reply_method_return(
- message, "soshusub",
- session->id,
- path,
- session->user->runtime_path,
- fifo_fd,
- (uint32_t) session->user->uid,
- session->seat ? session->seat->id : "",
- (uint32_t) session->vtnr,
- true);
- }
+ r = manager_get_session_by_pid(m, leader, NULL);
+ if (r > 0)
+ return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already running in a session");
+
+ /*
+ * Old gdm and lightdm start the user-session on the same VT as
+ * the greeter session. But they destroy the greeter session
+ * after the user-session and want the user-session to take
+ * over the VT. We need to support this for
+ * backwards-compatibility, so make sure we allow new sessions
+ * on a VT that a greeter is running on.
+ */
+ if (vtnr > 0 &&
+ vtnr < m->seat0->position_count &&
+ m->seat0->positions[vtnr] &&
+ m->seat0->positions[vtnr]->class != SESSION_GREETER)
+ return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already occupied by a session");
audit_session_from_pid(leader, &audit_id);
if (audit_id > 0) {
diff --git a/src/login/logind-seat.c b/src/login/logind-seat.c
index 23095f51e0..fb5d076311 100644
--- a/src/login/logind-seat.c
+++ b/src/login/logind-seat.c
@@ -269,7 +269,7 @@ int seat_set_active(Seat *s, Session *session) {
int seat_switch_to(Seat *s, unsigned int num) {
/* Public session positions skip 0 (there is only F1-F12). Maybe it
* will get reassigned in the future, so return error for now. */
- if (!num)
+ if (num == 0)
return -EINVAL;
if (num >= s->position_count || !s->positions[num]) {
@@ -286,7 +286,7 @@ int seat_switch_to(Seat *s, unsigned int num) {
int seat_switch_to_next(Seat *s) {
unsigned int start, i;
- if (!s->position_count)
+ if (s->position_count == 0)
return -EINVAL;
start = 1;
@@ -307,7 +307,7 @@ int seat_switch_to_next(Seat *s) {
int seat_switch_to_previous(Seat *s) {
unsigned int start, i;
- if (!s->position_count)
+ if (s->position_count == 0)
return -EINVAL;
start = 1;
@@ -476,7 +476,7 @@ void seat_evict_position(Seat *s, Session *session) {
session->pos = 0;
- if (!pos)
+ if (pos == 0)
return;
if (pos < s->position_count && s->positions[pos] == session) {
diff --git a/src/login/pam_systemd.c b/src/login/pam_systemd.c
index 2f390237dc..f83d18b035 100644
--- a/src/login/pam_systemd.c
+++ b/src/login/pam_systemd.c
@@ -31,6 +31,7 @@
#include <security/pam_ext.h>
#include <security/pam_misc.h>
+#include "bus-common-errors.h"
#include "util.h"
#include "audit.h"
#include "macro.h"
@@ -399,8 +400,13 @@ _public_ PAM_EXTERN int pam_sm_open_session(
remote_host,
0);
if (r < 0) {
- pam_syslog(handle, LOG_ERR, "Failed to create session: %s", bus_error_message(&error, r));
- return PAM_SYSTEM_ERR;
+ if (sd_bus_error_has_name(&error, BUS_ERROR_SESSION_BUSY)) {
+ pam_syslog(handle, LOG_DEBUG, "Cannot create session: %s", bus_error_message(&error, r));
+ return PAM_SUCCESS;
+ } else {
+ pam_syslog(handle, LOG_ERR, "Failed to create session: %s", bus_error_message(&error, r));
+ return PAM_SYSTEM_ERR;
+ }
}
r = sd_bus_message_read(reply,
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index ab9fbaf138..198de3097d 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -756,9 +756,8 @@ static int parse_argv(int argc, char *argv[]) {
/* If two parameters are specified,
* the first one is the lower, the
* second one the upper directory. And
- * we'll also define the the
- * destination mount point the same as
- * the upper. */
+ * we'll also define the destination
+ * mount point the same as the upper. */
upper = lower[1];
lower[1] = NULL;