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If any devices are marked with 'SYSTEMD_READY=0' then we shouldn't run any
btrfs check on them.
Indeed there's no point in running "btrfs ready" on devices that already have
SYSTEMD_READY=0 set. Most probably such devices are members of a higher layer
aggregate device such as dm-multipath or software RAID. Doing IO on them wastes
time at best, and may cause delays, timeouts, or even hangs at worst (think
active-passive multipath or degraded RAID, for example).
It was initially reported at:
https://bugzilla.opensuse.org/show_bug.cgi?id=872929
The script shouldn't rely on a previous script exiting with a status code
that prevents it to be executed. Instead, should check if the destination
directory for the BLS kernel image exists and exit otherwise.
A runaway string should still be returned by the code that splits on
commas, so add a '?' to the regex so that the last '"?' in a string
still produces a valid block for the split code.
Tested:
ACTION=="remove\"GOTO=""
Which then produced:
$ test/rule-syntax-check.py src/login/70-uaccess.rules
# looking at src/login/70-uaccess.rules
Invalid line src/login/70-uaccess.rules:10: ACTION=="remove\"GOTO=""
clause: ACTION=="remove\"GOTO=""
Using a regex to match the groups is smarter than the split(',') that
would break in those cases.
Tested:
SUBSYSTEM=="usb", ENV{ID_USB_INTERFACES}=="*:060101:*,*:070202:*", TAG+="uaccess"
Rule checker doesn't break there after this commit.
Add support to backslash-escaped double quote inside a string.
Tested by modifying src/login/70-uaccess.rules to include:
ACTION=="remove" it", GOTO="uaccess_end"
And had the rule checker complain about it:
$ test/rule-syntax-check.py src/login/70-uaccess.rules
# looking at src/login/70-uaccess.rules
Invalid line src/login/70-uaccess.rules:10: ACTION=="remove" it", GOTO="uaccess_end"
clause: ACTION=="remove" it"
This reworks system call filter parsing, and replaces a couple of "bool"
function arguments by a single flags parameter.
This shouldn't change behaviour, except for one case: when we
recursively call our parsing function on our own syscall list, then
we'll lower the log level to LOG_DEBUG from LOG_WARNING, because at that
point things are just a problem in our own code rather than in the user
configuration we are parsing, and we shouldn't hence generate confusing
warnings about syntax errors.
Fixes: #8261
It doesn't work, spits out only rubbish and was already excluded of
run-coccinelle.sh. It's a pitty it doesn't work, but let's drop this
dead piece of code for now.
I figure sooneror later we'll have more of these docs, hence let's give
them a clean place to be.
This leaves NEWS and README/README.md as well as the LICENSE texts in
the root directory of the project since that appears to be customary for
Free Software projects.
This is true since commit 7e760b79ad.
Note that the changes in the regex expressions relies on the fact that the
script assumes that the comma separator is mandatory.
Add a comment in the script to clarify this.
In udev man page, "PROGRAM" key is part of the keys which are used for
matching purposes so it should only be used with the compare operator "==".
Actually it doesn't really make sense to assign it a value.
udev code allows both "=" and "==" for PROGRAM and both are handled the same
way but for consistencies it's better to have only the compare operator allowed
by the rule syntax checker.
No rules shipped by systemd use PROGRAM key so nothing need to be changed in
our rule files.
rule-syntax-check.py failed with the following error:
$ ./test/rule-syntax-check.py ./src/login/70-uaccess.rules
Invalid line ./src/login/70-uaccess.rules:31: SUBSYSTEM=="sound", TAG+="uaccess" OPTIONS+="static_node=snd/timer", OPTIONS+="static_node=snd/seq"
clause: TAG+="uaccess" OPTIONS+="static_node=snd/timer"
The comma is actually optional but the script makes it mandatory which seems a
good thing since it improves readability.
There isn't much difference, but in general we prefer to use the standard
functions. glibc provides reallocarray since version 2.26.
I moved explicit_bzero is configure test to the bottom, so that the two stdlib
functions are at the bottom.
gcc warns about unitialized memory access because it notices that ssize_t which
is < 0 could be cast to positive int value. We know that this can't really
happen because only -1 can be returned, but OTOH, in principle a large
*positive* value cannot be cast properly. This is unlikely too, since xattrs
cannot be too large, but it seems cleaner to just use a size_t to return the
value and avoid the cast altoghter. This makes the code simpler and gcc is
happy too.
The following warning goes away:
[113/1502] Compiling C object 'src/basic/basic@sta/xattr-util.c.o'.
In file included from ../src/basic/alloc-util.h:28:0,
from ../src/basic/xattr-util.c:30:
../src/basic/xattr-util.c: In function ‘fd_getcrtime_at’:
../src/basic/macro.h:207:60: warning: ‘b’ may be used uninitialized in this function [-Wmaybe-uninitialized]
UNIQ_T(A,aq) < UNIQ_T(B,bq) ? UNIQ_T(A,aq) : UNIQ_T(B,bq); \
^
../src/basic/xattr-util.c:155:19: note: ‘b’ was declared here
usec_t a, b;
^
