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If an IPv6 route is added with a source address that is still
tentative, the kernel will refuse to install it.
Previously, once we sent the messages to the kernel to add the
addresses, we would immediately proceed to add the routes. The
addresses would usually still be tentative at this point, so
adding static IPv6 routes was broken - see issue #5882.
Now, only begin to configure routes once the addresses are ready,
by restructuring the state machine, and tracking when addresses are
ready, not just added.
Fixes: #5882
Signed-off-by: Daniel Axtens <dja@axtens.net>
c4397d94c3 introduces
link_detach_from_manager() and netdev_detach_from_manager(), and they
set Link::manager or NetDev::manager NULL.
But, at the time e.g. link is removed, hence link_drop() is called,
there may be still some asynchronous netlink call is waiting, and
their callbacks hit assertion.
This make {link,netdev}_detach_from_manager() just drop all references
from manager, but keep the pointer to manager.
Fixes#11411.
This reverts commit 69bd76f2b9.
$DBUS_SESSION_BUS_ADDRESS is again set only if the socket exists.
Quoting https://github.com/systemd/systemd/pull/11327#issuecomment-452019027:
> [setting $DBUS_SESSION_BUS_ADDRESS unconditionally] makes pam_systemd
> incompatible with installations and distributions where dbus was not
> configured with --enable-user-session, and the session dbus-daemon is started
> by autolaunching or dbus-launch (as opposed to dbus.socket). I don't think
> that's wise: using autolaunching or dbus-launch, and disabling or not
> installing dbus.socket and dbus.service on the systemd user instance, is our
> compatibility story for people who still need a D-Bus session bus per X11
> session for whatever reason.
>
> For example, Debian can currently do either way, with a dbus-user-session
> package strongly recommended but not actually mandatory. dbus-user-session
> requires libpam-systemd; if pam_systemd now requires dbus.socket (which is in
> the dbus-user-session package), that's a circular dependency, which we
> normally try hard to avoid.
For systems that use dbus.socket this doesn't matter much, because the
user session is ordered after the user managaer, which pulls in dbus.socket
very early. For example, when logging over ssh:
sshd[20796]: pam_systemd(sshd:session): pam-systemd initializing
sshd[20796]: pam_systemd(sshd:session): Asking logind to create session: uid=1001 pid=20796 service=sshd type=tty class=user desktop= seat= vtnr=0 tty= display= remote=yes remote_user= remote_host=::1
sshd[20796]: pam_systemd(sshd:session): Session limits: memory_max=n/a tasks_max=n/a cpu_weight=n/a io_weight=n/a
systemd[1]: Created slice User Slice of UID 1001.
systemd[1]: Starting User Runtime Directory /run/user/1001...
systemd-logind[1210]: New session 3796 of user guest.
systemd[1]: Started User Runtime Directory /run/user/1001.
systemd[1]: Starting User Manager for UID 1001...
systemd[20805]: pam_systemd(systemd-user:session): pam-systemd initializing
systemd[20805]: Starting D-Bus User Message Bus Socket.
...
systemd[20805]: Reached target Sockets.
systemd[20805]: Reached target Basic System.
systemd[1]: Started User Manager for UID 1001.
systemd[1]: Started Session 3796 of user guest.
sshd[20796]: pam_systemd(sshd:session): Reply from logind: id=3796 object_path=/org/freedesktop/login1/session/_33796 runtime_path=/run/user/1001 session_fd=13 seat= vtnr=0 original_uid=1001
sshd[20796]: pam_unix(sshd:session): session opened for user guest by (uid=0)
Hence, everything in the ssh session is ordered after the user instance.
And in the user instance, services should be orderd after dbus.socket using
inter-unit dependencies. dbus.socket in turns does
systemctl --user set-environment DBUS_SESSION_BUS_ADDRESS=unix:path=%t/bus.
So there should be no race between starting of the dbus socket and our check
if it exists.
The alternative would be to set the "DBUS_SESSION_BUS_ADDRESS=unix:path=%s/bus;autolaunch:".
AFAICT, this would work as well. But I don't see any case where it actually works
better. Since this is an area with many compatiblity concerns, let's stick to
the previous setup which seems to work well.
Updating due to phrase "Defaults to DefaultTimeoutStartSec= from the manager configuration file, except when Type=oneshot is used, in which case the timeout is disabled by default (see systemd-system.conf)" from [0] https://github.com/systemd/systemd/blob/master/man/systemd.service.xml
When `timedatectl set-time` is called, NTP client may be in
'activating' or something. For safety, let's treat such states as
'active'.
This also changes all unit file status except for 'masked' or 'disabled'
are treated as 'enabled'.
Before:
IMPORT builtin 'hwdb' fails: No such file or directory
After:
IMPORT builtin 'hwdb' fails: No data available
Previous log is confusing and may be understood as hwdb file not exist.
Now, not a few udevd debug logs come from sd-device or sd-hwdb.
Only setting LOG_REALM_UDEV may not sufficient to debug.
We have already similar code in main() and udevadm.
Found by inspecting results of running this small program:
int main(int argc, const char **argv) {
for (int i = 1; i < argc; i++) {
FILE *f;
char line[1024], prev[1024], *r;
int lineno;
prev[0] = '\0';
lineno = 1;
f = fopen(argv[i], "r");
if (!f)
exit(1);
do {
r = fgets(line, sizeof(line), f);
if (!r)
break;
if (strcmp(line, prev) == 0)
printf("%s:%d: error: dup %s", argv[i], lineno, line);
lineno++;
strcpy(prev, line);
} while (!feof(f));
fclose(f);
}
}
By b1c097af8d (#10239), the receive buffer
size for uevents was set by SO_RCVBUF at first, and fallback to
use SO_RCVBUFFORCE. So, as SO_RCVBUF limits to the buffer size
net.core.rmem_max, which is usually much smaller than 128MB udevd requests,
uevents buffer size was not sufficient.
This fixes the ordering of the request: SO_RCVBUFFORCE first, and
fallback to SO_RCVBUF. Then, udevd's uevent buffer size can be set to
128MB.
This also revert 903893237a.
Fixes#11314 and #10754.
