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sd_journal_enumerate_unique will lock its mmap window to prevent it
from being released by calling mmap_cache_get with keep_always=true.
This call may return windows that are wider, but compatible with the
parameters provided to it.
This can result in a mismatch where the window to be released cannot
properly be selected, because we have more than one window matching the
parameters of mmap_cache_release. Therefore, introduce a release_cookie
to be used when releasing the window.
https://bugs.freedesktop.org/show_bug.cgi?id=79380
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As of 0f99f74a14 'sd-journal: verify that object start with the field
name' this condition should never happen.
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systemctl would call sd_j_enumerate_unique() interleaved with
sd_j_next(). But the latter can remove a file if it detects an
error in it. In those circumstances sd_j_enumerate_unique would
restart with the first file in hashmap. With many corrupted files
sd_j_enumerate_unique might iterate over the list multiple times.
Avoid this by jumping to the next file in unique list if possible,
or setting a flag that tells sd_j_enumerate_unique that it is done
otherwise.
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SERVICE_STOP would mean we're running the ExecStop command. That's not
the case with "STOPPING=1".
Instead we should enter the same state as if we just told the service
to stop, i.e. SERVICE_STOP_SIGTERM.
This fixes a bug where voluntarily exiting services would hang around in
deactivating state until timeout.
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getpeersec() will fail for non-SELinux enabled machines, so don't make that
a hard error.
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CID 1237543 (#1 of 1): Unchecked return value from library
(CHECKED_RETURN)
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With this change the DHCP6_OPTION_IAADDR_LEN define can be removed in
favor of using sizeof(). Using the name of the struct and sizeof()
makes it clearer how much and what data is being copied from the
DHCPv6 message.
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We need to figure out which of the possible names satisfied the policy,
so we cannot do the iteration in check_policy_item() but have to leave it
to the users.
Test cases amended accordingly.
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Check for OOM conditions of asprintf() in bus_set_address_user().
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https://bugzilla.redhat.com/show_bug.cgi?id=1150289
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When a child event is disabled (in order to be freed) and there is no
SIGCHLD signal event, sd_event_source_set_enabled will disable SIGCHLD
even if there are other child events.
Also remove some unneeded signalfd updates.
https://bugs.freedesktop.org/show_bug.cgi?id=84659
Based-on-a-patch-by: Hristo Venev <mustrumr97@gmail.com>
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We could end with a double close if we close the fd loop and flush_fd
fails. That would make us goto fail and there we close the fd once
again. This patch sets the fd to the return value for safe_close: -1
A fd with negative value will be ignored by the next call to
safe_close.
CID#996223
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Also, let's try to make function names descriptive, instead of using
bools for flags.
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Even though the 'emergency' and 'single' aliases come from sysvinit, the
lack of 'rescue' is still quite confusing (caught me by surprise for the
9th time yet) and inconsistent with `systemctl rescue` as well.
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Sync kdbus.h once again. Two thing have changed:
a) KDBUS_CMD_EP_* was renamed to KDBUS_CMD_ENDPOINT_*
b) struct kdbus_cmd_hello and struct kdbus_cmd_make gained a
'features' bitfield (which is currently unused)
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This enables tuntap support in the container (assumning the necessary capabilities are in place).
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Just some cleanups around policy checks that came up during review.
The code is still not productive.
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If we can't get the remote peer or security creds, bail out.
Spotted by coverity.
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Check for OOM situations when vasprintf() returns < 0 in bus_error_setfv().
Spotted by coverity.
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Fix a user of the KDBUS_CMD_FREE ioctl that was missed in the transition.
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Walk the items first, then free the memory of the message.
Also, while at it, make coverity happy with an explicit (void) prefix.
We intentionally ignore the return value here.
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It is no longer used after d663f1b1a92a778bcdc68f29b8c08cb49431b4f7
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The KDBUS_CMD_FREE ioctl now uses a struct rather than a direct pointer
to the offset to free.
The KDBUS_CMD_MSG_CANCEL ioctl has also changes, but there's no user of
it yet in systemd.
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linux/memfd.h was added linux 3.17, so it might not be widely
available for a while.
Also, check if memfd_create is defined, for the HAVE_LINUX_MEMFD_H
check to have a chance of succeeding.
Also, collapse all ifdefs for memfd-related stuff, because they
were all added together so there's no need to check separately.
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Programs such as OpenVPN may use ask-password for not only retrieving
passwords, but also usernames. Masking usernames with * seems just silly.
v2 - Don't mess with termios flags, instead print the input
instead of an asterix. Resolves issues with backspace
and TAB input.
v3 - Renamed 'do_echo' variables and argument to 'echo'. Also
modified the ask_password_{tty,agent,auto} API instead of
additional wrapper functions.
[zj: undo changes to ask_password_auto, since no callers were using
the new argument.]
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CID #996315.
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XKB consumed mods include modifiers that *didn't* affect the translation,
but might affect it if used. This is very misleading, given that we are
usually not interested in that information. Therefore, keep them in real
mods to behave like X11 does. Maybe at some point, XKB introduces proper
shortcut matching...
Also make evcat display consumed modifiers so we can better debug those
situations.
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Bold glyphs always use light colors. However, this color conversion is
limited to the foreground color, so skip it for backgrounds.
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We rely on the parent terminal to do color conversion, so also leave
bold->light conversion to the parent. Otherwise, it will be performed
twice and we might apply it on the wrong color.
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Hook up SM/RM 47/1047-1049 and enable alternate screen buffers for term
applications.
(David: rebased on top of -git, renamed helpers and added docs)
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Terminal state can be saved/restored by applications. To simplify our
internal handling, put all affected state into a separate object.
Especially with alternate screen buffers, this will simplify our code
significantly.
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We draw our own cursor in subterm now, so there's no reason to update the
cursor-position of the parent terminal on each frame. The parent's cursor
is hidden, anyway.
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7BIT mode is enabled by default. Fix the comment to state this correctly.
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The asserts used in the tests should never be allowed to be
optimized away
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If we are bothering to check whether the kernel is not feeding us
bad data, we might as well do it properly.
CID #1237692.
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m is always non-null at this point. This function is too long anyway.
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dir cannot be NULL here, because it was allocated with alloca.
CID #1237768.
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root cannot be NULL here, because it was allocated with alloca.
CID #1237769.
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Appease coverity report #1237775.
Also rename ss to n, to make it visually different from ss.
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This adds a first draft of systemd-consoled. This is still missing a lot
of features and does some rather primitive rendering. However, it shows
the direction this code is going and serves as basis for further testing.
The systemd-consoled binary should be run as `systemd --user' unit. It
automatically picks up any session marked as Desktop=SYSTEMD-CONSOLE.
Therefore, you can use any login-manager you want (ranging from /bin/login
to gdm) to create sessions for systemd-consoled. However, the sessions
managers must be prepared to set the Desktop= variable properly.
The user-session is called `systemd-console', only the daemon providing
the terminal environment is called `systemd-consoled' (mind the 'd').
So far, only a single terminal session is provided on each opened
user-session. However, we support multiple user-sessions (even across
multiple seats) just fine. In the future, the workspace logic will get
extended so you can have multiple terminal sessions in a single
user-session for easier access.
Note that this is still experimental! Instructions on how to run it will
follow shortly.
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As it turns out, I can actually send data to the pty faster than the
terminal can read. Therefore, make sure we read as much data as possible
but bail out early enough to not cause starvation.
Kernel TTY buffers are 4k, so reduce the overall buffer size, but read
more than once if possible (up to 8 times sounds reasonable).
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Instead of increasing the screen-age on redraw, we now increase it only on
real updates. This is effectively the same, but avoids increased age
counters on backbuffer rendering. Therefore, we can now check age counters
against fronbuffers safely, while rendering frames in background.
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