We should consider them bugs. If they are happening intentionally,
we should use the log_test_helpers code to capture and suppress
them. But having them off-by-default has potential to cause
programming errors.
Previously setup_capture_of_logs would prevent log messages from
going to the console entirely. That's a problem, since sometimes
log messages are bugs! Now setup_capture_of_logs() acts sensibly.
If you really do need to keep a message from going to the console
entirely, there is setup_full_capture_of_logs(). But only use that
if you're prepared to make sure that there are no extraneous
messages generated at all.
Users can't run an anonymous client and non-anonymous single
onion service at the same time. We need to know whether we have
any client ports or sockets open to do this check.
When determining whether a client port (SOCKS, Trans, NATD, DNS)
is set, count unix sockets when counting client listeners. This
has no user-visible behaviour change, because these options are
set once and never read in the current tor codebase.
Don't count sockets when setting ControlPort_set, that's what
ControlSocket is for. (This will be reviewed in #19665.)
Don't count sockets when counting server listeners, because the code
that uses these options expects to count externally-visible ports.
(And it would change the behaviour of Tor.)
Copying the integer 42 in a char buffer has a different representation
depending on the endianess of the system thus that unit test was failing on
big endian system.
This commit introduces a python script, like the one we have for SRV, that
computes a COMMIT/REVEAL from scratch so we can use it as a test vector for
our encoding unit tests.
With this, we use a random value of bytes instead of a number fixing the
endianess issue and making the whole test case more solid with an external
tool that builds the COMMIT and REVEAL according to the spec.
Fixes#19977
Signed-off-by: David Goulet <dgoulet@torproject.org>
Check NoOnionTraffic before attaching a stream.
NoOnionTraffic refuses connections to all onion hostnames,
but permits non-onion hostnames and IP addresses.
Check NoDNSRequest, NoIPv4Traffic, and NoIPv6Traffic before
attaching a stream.
NoDNSRequest refuses connections to all non-onion hostnames,
but permits IP addresses.
NoIPv4Traffic refuses connections to IPv4 addresses, but resolves
hostnames.
NoIPv6Traffic refuses connections to IPv6 addresses, but resolves
hostnames.
Combined, they refuse all non-onion hostnames and IP addresses.
OnionTrafficOnly is equivalent to NoDNSRequest, NoIPv4Traffic,
and NoIPv6Traffic.
Add unit tests for parsing and checking option validity.
Add documentation for each flag to the man page.
Add changes file for all of #18693.
Parsing only: the flags do not change client behaviour (yet!)
