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ima_write_policy() expects data to be written as one or more
rules, no more than PAGE_SIZE at a time. Easiest way to ensure
that we are not splitting rules is to read and write one line at
a time.
https://bugzilla.redhat.com/show_bug.cgi?id=1226948
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copy_bytes() tries to do the write in chunks, but ima kernel code
needs every rule to be written in one write. Writing the whole file
at once avoids the issue.
http://lists.freedesktop.org/archives/systemd-devel/2015-June/032623.html
http://sourceforge.net/p/linux-ima/mailman/message/34145236/
https://bugzilla.redhat.com/show_bug.cgi?id=1226948
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This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
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loop_write() didn't follow the usual systemd rules and returned status
partially in errno and required extensive checks from callers. Some of
the callers dealt with this properly, but many did not, treating
partial writes as successful. Simplify things by conforming to usual rules.
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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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7-space indentation is just too weird to leave alone.
Make it 8 spaces, as per CODING_STYLE. No other changes.
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safe_close() automatically becomes a NOP when a negative fd is passed,
and returns -1 unconditionally. This makes it easy to write lines like
this:
fd = safe_close(fd);
Which will close an fd if it is open, and reset the fd variable
correctly.
By making use of this new scheme we can drop a > 200 lines of code that
was required to test for non-negative fds or to reset the closed fd
variable afterwards.
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move mount_setup_early() call to main.c, before security module setup,
so there are no more repeat calls.
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We finally got the OK from all contributors with non-trivial commits to
relicense systemd from GPL2+ to LGPL2.1+.
Some udev bits continue to be GPL2+ for now, but we are looking into
relicensing them too, to allow free copy/paste of all code within
systemd.
The bits that used to be MIT continue to be MIT.
The big benefit of the relicensing is that closed source code may now
link against libsystemd-login.so and friends.
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