At the beginning of qname minimization we get fctx->finds filled with what's
in the cache at this point, in worst case root servers. After doing full
run querying for NSes at different levels we need to clean it and refill
it with proper values from cache.
Ensure that serve-stale works as expected when returning stale answers
is enabled, the authoritative server does not respond, and there is no
cached answer available.
Remove the following functions in order to simplify socket code:
- isc_socket_recvv()
- isc_socket_sendtov()
- isc_socket_sendtov2()
- isc_socket_sendv()
Remove the following functions in order to simplify socket code:
- isc_socket_recvv()
- isc_socket_sendtov()
- isc_socket_sendtov2()
- isc_socket_sendv()
Refactor diagnostic tools code to no longer use:
- isc_socket_recvv()
- isc_socket_sendtov2()
- isc_socket_sendv()
as these functions will be removed shortly.
While isc_buffer_copyregion() calls isc_buffer_reserve() to ensure the
target buffer will have enough available space to append the contents of
the source region to it, the variables used for subsequently checking
available space are not updated accordingly after that call. This
prevents isc_buffer_copyregion() from working as expected for
auto-reallocated buffers: ISC_R_NOSPACE will be returned if enough space
is not already available in the target buffer before it is reallocated.
Fix by calling isc_buffer_used() and isc_buffer_availablelength()
directly instead of assigning their return values to local variables.
Add some basic checks for isc_buffer_copyregion() to ensure it behaves
as expected for both fixed-size buffers and buffers which can be
automatically reallocated. Adjust the list of headers included by
lib/isc/tests/buffer_test.c so that it matches what that test program
really uses.
If an RPZ zone is to be freed during an update, canceling the
update_quantum() event is not enough because the resources released when
an update completes also need to be accounted for. Failure to do this
results in a hang upon shutdown. Fix by copying cleanup code from the
end of update_quantum() to rpz_detach().
If another RPZ update is pending when processing the previous one nears
completion and min-update-interval is set to 0, isc_timer_reset() gets
called with 'interval' set to 0, which triggers an assertion failure.
To prevent such a scenario from causing a crash, queue the update event
directly instead of asking the timer thread to do it.
Mark AndrewsandWitold Kręcicki
Evan HuntandWitold Kręcicki
Tony FinchandWitold Kręcicki
Michał KępieńandWitold Kręcicki
Ondřej Surý
