See: #40601.

Peter Müller authored Apr 30, 2022 and Alexander Færøy committed May 09, 2022

This was found to be necessary in conjunction with glibc 2.35 on Linux. 
Signed-off-by: Peter Müller <peter.mueller@ipfire.org>

Part of #40560

Signed-off-by: David Goulet <dgoulet@torproject.org>

This code was heavily reused from the previous DNS timeout work done in
ticket #40491 that was removed afterall from our code.

Closes #40560

Signed-off-by: David Goulet <dgoulet@torproject.org>

Apparently glibc-2.34 uses clone3, when previously it just used
clone.

Closes ticket #40590.

Due to a possible Guard subsystem recursion, when the HS client gets
notified that the directory information has changed, it must run it in a
seperate mainloop event to avoid such issue.

See the ticket for more information on the recursion. This also fixes a
fatal assert.

Fixes #40579

Signed-off-by: David Goulet <dgoulet@torproject.org>

Prometheus needs unique labels and so this bug was causing an onion
service with multiple ports to have multiple "port=" label for the
metrics requiring a port label.

Fixes #40581

Signed-off-by: David Goulet <dgoulet@torproject.org>

This enables on-demand debian packaging CI builds on maintenance
branches, to replace (often unnecessary) daily scheduled builds.

Fixes #40552

Signed-off-by: David Goulet <dgoulet@torproject.org>

Signed-off-by: David Goulet <dgoulet@torproject.org>

Signed-off-by: David Goulet <dgoulet@torproject.org>

Signed-off-by: David Goulet <dgoulet@torproject.org>