Age | Commit message (Collapse) | Author |
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Matches that can only match against messages from the
org.freedesktop.DBus.Local service (or the local interfaces or path)
should never be installed server side, suppress them hence.
Similar, on kdbus matches that can only match driver messages shouldn't
be passed to the kernel.
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hashmap: fix iterators to not skip entries
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This ports a lot of manual code over to sigprocmask_many() and friends.
Also, we now consistly check for sigprocmask() failures with
assert_se(), since the call cannot realistically fail unless there's a
programming error.
Also encloses a few sd_event_add_signal() calls with (void) when we
ignore the return values for it knowingly.
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Currently, the HASHMAP iterators stop at the first NULL entry in a
hashmap. This is non-obvious and breaks users like sd-device, which
legitimately store NULL values in a hashmap.
Fix all the iterators by taking a pointer to the value storage, instead of
returning it. The iterators now return a boolean that tells whether the
end of the list was reached.
Current users of HASHMAP_FOREACH() are *NOT* changed to explicitly check
for NULL. If it turns out, there were users that inserted NULL into
hashmaps, but didn't properly check for it during iteration, then we
really want to find those and fix them.
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Split netlink-socket.c and rtnl-message.c from netlink-message.c.
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AF_NETLINK is not write-buffered, so this was actually never used.
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sd-rtnl: make joining broadcast groups implicit
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Lets us simplify the function and drop SO_PASSCRED.
Thanks to Alexander Larsson and David Herrmann.
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Net
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basic/ can be used by everything
cannot use anything outside of basic/
libsystemd/ can use basic/
cannot use shared/
shared/ can use libsystemd/
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sd-network: allow the state dir to be created after the monitor
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Our bloom-filters support root-path matching. Make sure we properly add
the path_namespace= tag.
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DBus-spec defines two different pattern matchings:
1) Path and namespace prefix matching. In this case, A matches B either
if both are equal, or if B is fully included in the namespace of A.
In other words, A has to be a prefix of B, but end with a separator
character (or the following character in B must be one).
This is used for path_namespace= and arg0namespace=
2) The other pattern matching is used for arg0path= which does a two-way
matching. That is, A must be a prefix of B, or B a prefix of A.
Furthermore, the prefix must end with a separator.
Fix the sd-bus helpers to reflect that. The 'simple_' and 'complex_'
prefixes don't make any sense now, but.. eh..
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Make sure we actually verify our match-rules are executed properly. Right
now all we test is the bloom-matches, which are non-reliable as they leave
through false-positives.
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DBus spec clearly defines arg0path= to be a two-way matching. That is,
either the matcher or the matchee can be a prefix of the other to match.
This is not possible to implement with bloom-filters. Instead, we'd have
to add a separate filter for each prefix. This is non-trivial, though.
Hence, just skip the match for now and match locally.
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Lets look at an example where we add arg0="/foo/bar/waldo" to a
bloom-filter. The following strings are added:
"arg0:/foo/bar/waldo"
"arg0-slash-prefix:/foo/bar"
"arg0-slash-prefix:/foo"
Two problems arise:
1) If we match on "arg0path=/foo/bar/waldo", the dbus-spec explicitly
states that equal strings are also considered prefixes. However, in the
bloom-match, we can only provide a single match-filter. Therefore, we have
to add "arg0-slash-prefix:/foo/bar/waldo" there, but this never occured in
the bloom-mask of the message.
Hence, this patch makes sure bloom_add_prefixes() adds the full path as
prefix, too.
2) If we match on "arg0path=/foo/", the dbus-spec states that arg0path
does prefix-matching with the trailing slash _included_, unlike
path_namespace= matches, which does *not* include them. This is
inconsistent, but we have to support the specs. Therefore, we must add
prefixes with _and_ without trailing separators.
Hence, this patch makes sure bloom_add_prefixes() adds all prefixes with
the trailing slash included.
The final set of strings added therefore is:
"arg0:/foo/bar/waldo"
"arg0-slash-prefix:/foo/bar/waldo"
"arg0-slash-prefix:/foo/bar/"
"arg0-slash-prefix:/foo/bar"
"arg0-slash-prefix:/foo/"
"arg0-slash-prefix:/foo"
"arg0-slash-prefix:/"
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We now listen for new subdirs of /run/systemd, and /run/systemd/netif in case
/run/systemd/netif/links does not exist.
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It's only marginally shorter then the usual for() loop, but certainly
more readable.
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sd-network: allow NULL in sd_network_monitor_unref
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Match rest of codebase, we always allow unref'ing NULL.
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use it anymore
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This appears to be the right time to do it for SOCK_STREAM
unix sockets.
Also: condition bus_get_owner_creds_dbus1 was reversed. Split
it out to a separate variable for clarity and fix.
https://bugzilla.redhat.com/show_bug.cgi?id=1224211
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SELinux information cannot be retrieved this way, since we are
using stream unix sockets and SCM_SECURITY does not work for
them.
SCM_CREDENTIALS use dropped to be consistent. We also should
get this information at connection time.
https://bugzilla.redhat.com/show_bug.cgi?id=1224211
"SCM_SECURITY was only added for datagram sockets."
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utezduyar/feat/dump-sync-dbus-message-with-logging-on
sd-bus: dump sync messages in debug mode
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mask/handlers
Also, when the child is potentially long-running make sure to set a
death signal.
Also, ignore the result of the reset operations explicitly by casting
them to (void).
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Also reorder the code a bit to be easier to parse.
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Right now we always pass KDBUS_ITEM_ATTACH_FLAGS_RECV to
KDBUS_CMD_BUS_MAKE, effectively forcing every bus connection to do the
same during KDBUS_CMD_HELLO. This used to be a workaround to make sure all
metadata is always present. However, we refrained from that approach and
intend to make all metadata collection solely rely on /proc access
restrictions. Therefore, there is no need to force the send-flags mask on
newly created buses.
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Sync with upstream.
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We protect most of the API from use accross forks, but we still allow both
sd_event and sd_event_source objects to be unref'ed. This would cause
problems as it would unregister sources from the underlying eventfd, hence
also affecting the original instance in the parent process.
This fixes the issue by not touching the fds on unref when done accross a fork,
but still free the memory.
This fixes a regression introduced by
"udevd: move main-loop to sd-event": 693d371d30fee
where the worker processes were disabling the inotify event source in the
main daemon.
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libudev: enumerate - accept NULL parameters in add_match()
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This was a regression introduced when moving to sd-device.
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Don't try to read it again.
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Don't clobber the sd_device struct, and don't leak memory when memory allocation fails.
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In device_update_properties_bufs(), the strv is built from pointers into the
single nul-terminated buf_nulstr string, to avoid allocating the key=value
strings twice. However, we must not do that while building and
GREEDY_REALLOC0()'ing buf_nulstr, as each time when this actually reallocates
memory the pointers we wrote into buf_strv so far become invalid.
So change the logic to first completely build the new buf_nulstr, and then
iterate over it to pick out the pointers to the individual key=value strings
for properties_strv.
This fixes invalid environment for udev callouts.
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No functional changes.
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