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logind: if we can't open /dev/tty0, assume there is no VT subsystem and don't pretend...
author
Lennart Poettering
<lennart@poettering.net>
Tue, 3 Jan 2012 20:47:54 +0000
(21:47 +0100)
committer
Lennart Poettering
<lennart@poettering.net>
Tue, 3 Jan 2012 20:47:54 +0000
(21:47 +0100)
src/login/logind-dbus.c
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|
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src/login/logind-seat-dbus.c
patch
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src/login/logind-seat.c
patch
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src/login/logind-seat.h
patch
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src/login/logind-session.c
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src/login/logind.c
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src/login/sd-login.c
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diff --git
a/src/login/logind-dbus.c
b/src/login/logind-dbus.c
index 0550d1bd1cc6b29ebe698c6d3e0a4644ed292d89..efbc040ad38f9e3e965d2fa0eb815704dab23a03 100644
(file)
--- a/
src/login/logind-dbus.c
+++ b/
src/login/logind-dbus.c
@@
-301,7
+301,7
@@
static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMess
return -EINVAL;
if (s) {
return -EINVAL;
if (s) {
- if (seat_
is_vtconsole
(s)) {
+ if (seat_
can_multi_session
(s)) {
if (vtnr <= 0 || vtnr > 63)
return -EINVAL;
} else {
if (vtnr <= 0 || vtnr > 63)
return -EINVAL;
} else {
diff --git
a/src/login/logind-seat-dbus.c
b/src/login/logind-seat-dbus.c
index 3a916eef78f6606de65e03e05c04cd7cbe0840ff..a15689b18f0074ded40e15442ad9fc88a4c6ec79 100644
(file)
--- a/
src/login/logind-seat-dbus.c
+++ b/
src/login/logind-seat-dbus.c
@@
-141,7
+141,7
@@
static int bus_seat_append_multi_session(DBusMessageIter *i, const char *propert
assert(property);
assert(s);
assert(property);
assert(s);
- b = seat_
is_vtconsole
(s);
+ b = seat_
can_multi_session
(s);
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
return -ENOMEM;
diff --git
a/src/login/logind-seat.c
b/src/login/logind-seat.c
index 3cf3958c8d47330d13cac925573238713a54ef55..8c83a2c5ecd3088c256580c3bbd7a771779cbe56 100644
(file)
--- a/
src/login/logind-seat.c
+++ b/
src/login/logind-seat.c
@@
-101,8
+101,10
@@
int seat_save(Seat *s) {
fprintf(f,
"# This is private data. Do not parse.\n"
fprintf(f,
"# This is private data. Do not parse.\n"
- "IS_VTCONSOLE=%i\n",
- seat_is_vtconsole(s));
+ "IS_VTCONSOLE=%i\n"
+ "CAN_MULTI_SESSION=%i\n",
+ seat_is_vtconsole(s),
+ seat_can_multi_session(s));
if (s->active) {
assert(s->active->user);
if (s->active) {
assert(s->active->user);
@@
-191,7
+193,7
@@
int seat_preallocate_vts(Seat *s) {
if (s->manager->n_autovts <= 0)
return 0;
if (s->manager->n_autovts <= 0)
return 0;
- if (!seat_
is_vtconsole
(s))
+ if (!seat_
can_multi_session
(s))
return 0;
for (i = 1; i <= s->manager->n_autovts; i++) {
return 0;
for (i = 1; i <= s->manager->n_autovts; i++) {
@@
-266,7
+268,7
@@
int seat_active_vt_changed(Seat *s, int vtnr) {
assert(s);
assert(vtnr >= 1);
assert(s);
assert(vtnr >= 1);
- if (!seat_
is_vtconsole
(s))
+ if (!seat_
can_multi_session
(s))
return -EINVAL;
log_debug("VT changed to %i", vtnr);
return -EINVAL;
log_debug("VT changed to %i", vtnr);
@@
-290,7
+292,7
@@
int seat_read_active_vt(Seat *s) {
assert(s);
assert(s);
- if (!seat_
is_vtconsole
(s))
+ if (!seat_
can_multi_session
(s))
return 0;
lseek(s->manager->console_active_fd, SEEK_SET, 0);
return 0;
lseek(s->manager->console_active_fd, SEEK_SET, 0);
@@
-388,7
+390,7
@@
int seat_attach_session(Seat *s, Session *session) {
assert(session);
assert(!session->seat);
assert(session);
assert(!session->seat);
- if (!seat_
is_vtconsole
(s) && s->sessions)
+ if (!seat_
can_multi_session
(s) && s->sessions)
return -EEXIST;
session->seat = s;
return -EEXIST;
session->seat = s;
@@
-396,7
+398,7
@@
int seat_attach_session(Seat *s, Session *session) {
seat_send_changed(s, "Sessions\0");
seat_send_changed(s, "Sessions\0");
- if (!seat_
is_vtconsole
(s)) {
+ if (!seat_
can_multi_session
(s)) {
assert(!s->active);
seat_set_active(s, session);
}
assert(!s->active);
seat_set_active(s, session);
}
@@
-410,6
+412,18
@@
bool seat_is_vtconsole(Seat *s) {
return s->manager->vtconsole == s;
}
return s->manager->vtconsole == s;
}
+bool seat_can_multi_session(Seat *s) {
+ assert(s);
+
+ if (!seat_is_vtconsole(s))
+ return false;
+
+ /* If we can't watch which VT is in the foreground, we don't
+ * support VT switching */
+
+ return s->manager->console_active_fd >= 0;
+}
+
int seat_get_idle_hint(Seat *s, dual_timestamp *t) {
Session *session;
bool idle_hint = true;
int seat_get_idle_hint(Seat *s, dual_timestamp *t) {
Session *session;
bool idle_hint = true;
diff --git
a/src/login/logind-seat.h
b/src/login/logind-seat.h
index 5bce1434e90dcbe034a72c487a8428fbda319ee9..3b2c7f09654dfcf5ba5ca91cf067fe264f5b22d2 100644
(file)
--- a/
src/login/logind-seat.h
+++ b/
src/login/logind-seat.h
@@
-62,6
+62,7
@@
int seat_preallocate_vts(Seat *s);
int seat_attach_session(Seat *s, Session *session);
bool seat_is_vtconsole(Seat *s);
int seat_attach_session(Seat *s, Session *session);
bool seat_is_vtconsole(Seat *s);
+bool seat_can_multi_session(Seat *s);
int seat_get_idle_hint(Seat *s, dual_timestamp *t);
int seat_start(Seat *s);
int seat_get_idle_hint(Seat *s, dual_timestamp *t);
int seat_start(Seat *s);
diff --git
a/src/login/logind-session.c
b/src/login/logind-session.c
index 63ee75808b546f9ef668b380ebde57907c89d797..58c70c3dbfb840c6b7855a5dfdf4a2fe0e62a822 100644
(file)
--- a/
src/login/logind-session.c
+++ b/
src/login/logind-session.c
@@
-185,7
+185,7
@@
int session_save(Session *s) {
"SERVICE=%s\n",
s->service);
"SERVICE=%s\n",
s->service);
- if (s->seat && seat_
is_vtconsole
(s->seat))
+ if (s->seat && seat_
can_multi_session
(s->seat))
fprintf(f,
"VTNR=%i\n",
s->vtnr);
fprintf(f,
"VTNR=%i\n",
s->vtnr);
@@
-270,7
+270,7
@@
int session_load(Session *s) {
seat_attach_session(o, s);
}
seat_attach_session(o, s);
}
- if (vtnr && s->seat && seat_
is_vtconsole
(s->seat)) {
+ if (vtnr && s->seat && seat_
can_multi_session
(s->seat)) {
int v;
k = safe_atoi(vtnr, &v);
int v;
k = safe_atoi(vtnr, &v);
diff --git
a/src/login/logind.c
b/src/login/logind.c
index 4633a5ef29109c9cf51538dfdc99deb5de96a4fb..3a1903ca130032d946a02eba337f32d471109016 100644
(file)
--- a/
src/login/logind.c
+++ b/
src/login/logind.c
@@
-655,7
+655,6
@@
int manager_dispatch_seat_udev(Manager *m) {
return r;
}
return r;
}
-
int manager_dispatch_vcsa_udev(Manager *m) {
struct udev_device *d;
int r = 0;
int manager_dispatch_vcsa_udev(Manager *m) {
struct udev_device *d;
int r = 0;
@@
-906,6
+905,12
@@
static int manager_connect_console(Manager *m) {
m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
if (m->console_active_fd < 0) {
m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
if (m->console_active_fd < 0) {
+
+ /* On certain architectures (S390 and Xen), /dev/tty0
+ does not exist, so don't fail if we can't open it.*/
+ if (errno == ENOENT)
+ return 0;
+
log_error("Failed to open /sys/class/tty/tty0/active: %m");
return -errno;
}
log_error("Failed to open /sys/class/tty/tty0/active: %m");
return -errno;
}
diff --git
a/src/login/sd-login.c
b/src/login/sd-login.c
index 1d4368187f5f430de16a692f69279714aeccef84..e857ae08d2c8f73ecbcfc8105b6af1df10dd1b87 100644
(file)
--- a/
src/login/sd-login.c
+++ b/
src/login/sd-login.c
@@
-574,7
+574,7
@@
_public_ int sd_seat_can_multi_session(const char *seat) {
return -ENOMEM;
r = parse_env_file(p, NEWLINE,
return -ENOMEM;
r = parse_env_file(p, NEWLINE,
- "
IS_VTCONSOLE
", &s,
+ "
CAN_MULTI_SESSION
", &s,
NULL);
free(p);
NULL);
free(p);