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If both gnutls and openssl are available, prefer openssl.
We are gradually moving toward supporting openssl only as the
crypto library, and the resolved gnutls backend will be dropped
at some point, so start nudging users toward the openssl one.
The format described by this document is used not only for coredumps,
but also for other purposes, so we've outgrown the old title.
A redirect was added based on https://codepo8.github.io/github-redirection-demo/.
I tried to use a relative link, but it's hard to test if it works
before merging.
Co-authored-by: Benjamin Franzke <benjaminfranzke@googlemail.com>
Not sure when the issue was fixed.
- kernel-3.10 on CentOS 7 has the issue,
- kernel-4.18 on CentOS 8 works fine.
Note, the workaround dropped by the commit is not incomplete:
with an old kernel which has the issue, all non-prefix routes are
configured on the specified route table, but the prefix route is
configured on the main table. That should not work for most cases,
hence, the workaround is mostly meaningless.
All wiki pages that contain a deprecation banner
pointing to systemd.io or manpages are updated to
point to their replacements directly.
Helpful command for identification of available links:
git grep freedesktop.org/wiki | \
sed "s#.*\(https://www.freedesktop.org/wiki[^ $<'\\\")]*\)\(.*\)#\\1#" | \
sort | uniq
* Avoid traling slash as most links are defined without.
* Always use https:// protocol and www. subdomain
Allows for easier tree-wide linkvalidation
for our migration to systemd.io.
3970 e = object_path_startswith(path, prefix);
(gdb) p path
$1 = 0x55c5a166f768 "/org/freedesktop/portable1/image"
(gdb) p prefix
$2 = 0x55c59ffc2928 "/org/freedesktop/portable1/image"
(gdb) p e
$1 = 0x5581a1675788 ""
This can be a bit confusing in certain cases, so add a comment and a
test to make the behaviour clearer and explicit.
Before 9e82a74cb0f08a288f9db228a0b5bec8a7188cdb, we had a check like the
following:
if [[ -d /efi/loader/entries ]] || [[ -d /efi/$MACHINE_ID ]]; then
ENTRY_DIR_ABS="/efi/$MACHINE_ID/$KERNEL_VERSION"
elif [[ -d /boot/loader/entries ]] || [[ -d /boot/$MACHINE_ID ]]; then
ENTRY_DIR_ABS="/boot/$MACHINE_ID/$KERNEL_VERSION"
elif [[ -d /boot/efi/loader/entries ]] || [[ -d /boot/efi/$MACHINE_ID ]]; then
ENTRY_DIR_ABS="/boot/efi/$MACHINE_ID/$KERNEL_VERSION"
…
In stock Fedora 34-, /efi isn't used, but grub creates /boot/loader/entries and
installs kernels and initrds directly in /boot. Thus the second arm of the
check wins, and we end up with BOOT_ROOT=/boot.
After 9e82a74cb0f08a288f9db228a0b5bec8a7188cdb, we iterate over the inner
directory first and over the second directory later:
[ -d /efi/<machine-id> ]
[ -d /boot/efi/<machine-id> ]
[ -d /boot/<machine-id> ]
[ -d /efi/Default ]
[ -d /boot/efi/Default ]
[ -d /boot/Default ]
[ -d /efi/loader/entries ]
[ -d /boot/efi/loader/entries ]
[ -d /boot/loader/entries ]
This was partially reverted by 447a822f8ee47b63a4cae00423c4d407bfa5e516 which
removed Default from the list, and a5307e173bf86d695fe85b8e15e91126e8618a14,
which moved checks for /boot up, so we ended up with:
[ -d /efi/<machine-id> ]
[ -d /boot/<machine-id> ]
[ -d /boot/efi/<machine-id> ]
[ -d /efi/loader/entries ]
[ -d /boot/loader/entries ]
[ -d /boot/efi/loader/entries ]
6637cf9db67237857279262d93ee0e39023c5b85 added autodetection of an entry
token, so we end up checking the following suffixes:
<machine-id>, $IMAGE_ID, $ID, Default
But the important unchanged characteristic is that we iterate over the suffix
first. Sadly this breaks Fedora, because we find /boot/efi/<machine-id> before
we could find /boot/loader/entries. It seems that every possible aspect of
behaviour matters for somebody, so we need to keep the original order of
detection.
With the patch:
[ -d /efi/<machine-id> ]
...
[ -d /efi/loader/entries ]
[ -d /boot/<machine-id> ]
...
[ -d /boot/loader/entries ]
[ -d /boot/efi/<machine-id> ]
...
[ -d /boot/efi/loader/entries ]
Note that we need to check for "loader/entries" too, even though it is not
an entry-token candidate, so that we get the same detection priority as
before.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=2071034.
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43942 is a simple case
where a repeated entry generates a timeout. I didn't import that case, but
generated a simpler one by hand.
$ time build/fuzz-etc-hosts test/fuzz/fuzz-etc-hosts/timeout-many-entries
test/fuzz/fuzz-etc-hosts/timeout-many-entries... ok
build/fuzz-etc-hosts test/fuzz/fuzz-etc-hosts/timeout-many-entries 3.17s (old)
↓
build/fuzz-etc-hosts test/fuzz/fuzz-etc-hosts/timeout-many-entries 0.11s (new)
I considered simply disallowing too many aliases. E.g. microsoft appearently
sometimes ignores entries after the ninth [1], and other systems set stringent
limits [2,3], but the recommended way to get around that is to simply use more
lines (as is done in the sample), so this wouldn't change anything.
Even if we cannot put all those names in a reply packet, the resolution from
the alias to the address should work. I think cases where people define lots
and lots of aliases through some programmatic interface is realistic, for
example for a blocklist, and such a file shouldn't bring resolved down to its
knees.
[1] https://superuser.com/questions/932112/is-there-a-maximum-number-of-hostname-aliases-per-line-in-a-windows-hosts-file
[2] https://library.netapp.com/ecmdocs/ECMP1516135/html/GUID-C6F3B6D1-232D-44BB-A76C-3304C19607A3.html
[3] https://www.ibm.com/docs/en/zos/2.1.0?topic=optional-creating-etchosts
This will be helpful in cases where we are repeatedly adding entries
to a long strv and want to skip the iteration over old entries leading
to quadratic behaviour.
Note that we don't want to calculate the length if not necessary, so
the calculation is delayed until after we've checked that value is not
NULL.
I took inspiration from pid1:
bus_unit_find()
→ find_unit()
→ manager_load_unit_from_dbus_path()
→ unit_name_from_dbus_path()
→ !startswith(path, "/org/freedesktop/systemd1/unit/")
→ return -EINVAL
←
←
←
← if (r < 0) return 0
← 0
←
i.e. we return 0 when queried for "/org/freedesktop/systemd1/unit".
Fixes#23445.
If $BOOT_ROOT is specified, but entry-token not, we'd skip the detection
altogether, effectively defaulting to entry-token=machine-id.
The case where $BOOT_ROOT was not specied, but entry-token was configured
was handled correctly.
This patch makes the handling of both symmetrical, i.e. will only set what
wasn't configured.
No changes to behaviour, but let's print everything out as we discover it.
The docs say that BOOT_ROOT can be specified by the environment. I have
it locally in /etc/kernel/install.conf, and then the override doesn't work.
It'd be nice to handle such cases more reliably.
Fixes#23433
matches is plumbed through until it finally gets used in unit_match()
which can deal with NULL matches so the assert() is unnecessary and
can be removed.
The two call sites of extract_image_and_extensions() also don't
assert() on matches either.
