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There is alot of cleanup that will have to happen to turn on
-fstrict-aliasing, but I think our code should be "correct" to the rule.
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Let's add some syntactic sugar for iterating through inotify events, and
use it everywhere.
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If the format string contains %m, clearly errno must have a meaningful
value, so we might as well use log_*_errno to have ERRNO= logged.
Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/'
Plus some whitespace, linewrap, and indent adjustments.
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The socket unit does this, so no need to redo it in udevd.
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It corrrectly handles both positive and negative errno values.
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As a followup to 086891e5c1 "log: add an "error" parameter to all
low-level logging calls and intrdouce log_error_errno() as log calls
that take error numbers", use sed to convert the simple cases to use
the new macros:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\("(.*)%s"(.*), strerror\(-([a-zA-Z_]+)\)\);/log_\1_errno(-\4, "\2%m"\3);/'
Multi-line log_*() invocations are not covered.
And we also should add log_unit_*_errno().
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Also, make all parsing of the kernel cmdline non-fatal.
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Lets recognize the fact that startswith() returns a pointer to the tail on
success. Use it instead of hard-coding string-lengths as magic constants.
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Spotted by Andreas Henriksson.
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One reported by Coverity. Fixes CID #996252.
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Found by Coverity. Fixes CID #1238780.
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Processes expecting static nodes to have the right permissions may order themselves after systemd-udevd.service,
make sure that actually guarantees what is expected.
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This delays label_init(), and drops the (duplicate) printing of version
information.
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Also move the rest of event initialization next to the event loop (no functional change).
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Rather than printing debug output to stderr and redirecting this to /dev/null when not wanted,
use the correct log_*() function in the first place.
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Once upon a time logging during early boot was unreliable, so extra logging messages were
sent by udev to stderr. That is no longer a concern, so drop all fprintf() calls from udved.
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Also rename some global variables to arg_* to make it clearer where they come from.
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Some kernel modules still take more than one minute to insmod, we no longer rely on the timeout
killing insmod within a given period of time, so just bump this to a much higher value. Its only
purpose is to make sure that nothing stays aronud forever.
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The only remaining user was 'starting version XXX', which is now logged using log_info().
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Creating the rtnl context is cheap, but freeing it may not be, due to
synchronous close().
Also drop some excessive logging. We now log about the changing ifname
exactly once.
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String which ended in an unfinished quote were accepted, potentially
with bad memory accesses.
Reject anything which ends in a unfished quote, or contains
non-whitespace characters right after the closing quote.
_FOREACH_WORD now returns the invalid character in *state. But this return
value is not checked anywhere yet.
Also, make 'word' and 'state' variables const pointers, and rename 'w'
to 'word' in various places. Things are easier to read if the same name
is used consistently.
mbiebl_> am I correct that something like this doesn't work
mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-passwd "Unlock EncFS"'
mbiebl_> systemd seems to strip of the quotes
mbiebl_> systemctl status shows
mbiebl_> ExecStart=/usr/bin/encfs --extpass='/bin/systemd-ask-password Unlock EncFS $RootDir $MountPoint
mbiebl_> which is pretty weird
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Some events take longer than the default 30 seconds. Killing those
events will leave the machine halfway configured.
Add a commandline option '--event-timeout' to handle these cases.
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MD instantiates devices at open(). This is incomptible with the
locking logic, as the "change" event emitted when stopping a
device will bring it back.
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The return value from udev_enumerate_scan_devices was stored but
never used. I assume this was meant to be checked.
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Arguments were wrong order, no?
This fixes commits:
e918a1b5a94f270186dca59156354acd2a596494
3d06f4183470d42361303086ed9dedd29c0ffc1b
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The kernel will return 0 for REREADPT when no partition table
is found, we have to send out "change" ourselves.
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mounted partitions:
# dd if=/dev/zero of=/dev/sda bs=1 count=1
UDEV [4157.369250] change .../0:0:0:0/block/sda (block)
UDEV [4157.375059] change .../0:0:0:0/block/sda/sda1 (block)
UDEV [4157.397088] change .../0:0:0:0/block/sda/sda2 (block)
UDEV [4157.404842] change .../0:0:0:0/block/sda/sda4 (block)
unmounted partitions:
# dd if=/dev/zero of=/dev/sdb bs=1 count=1
UDEV [4163.450217] remove .../target6:0:0/6:0:0:0/block/sdb/sdb1 (block)
UDEV [4163.593167] change .../target6:0:0/6:0:0:0/block/sdb (block)
UDEV [4163.713982] add .../target6:0:0/6:0:0:0/block/sdb/sdb1 (block)
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This should make sure that fdisk-like programs will automatically
cause an update of all partitions, just like mkfs-like programs cause
an update of the partition.
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https://bugs.freedesktop.org/show_bug.cgi?id=79576
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