We can now query the protover subsystem to get the current value we
support for a specific protover type.
This will be useful for prop324 onion service part which puts in the
FlowCtrl value in the service descriptor.
No behavior change.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This is for public network testing and for sbws. Should not otherwise be used,
hence it is an undocumented __option.
The option deliberately does not allow force-disabling congestion control, as
this is bad for queueing and fairness.
It is possible that a scheduled channel ended up with 0 bytes in its
outbuf after the scheduling loop and having an outbuf table entry
indicating that we need to flush bytes on the wire after the loop.
This lead to attempt to write 0 bytes up to the TLS layer that would
prevent such action.
All in all, this fixes wasted CPU cycles on attempting to flush nothing.
Fixes#40548
Signed-off-by: David Goulet <dgoulet@torproject.org>
We removed HSIntro=3 and HSDir=1 that are v2 specific. Since 0.3.5.17,
we do not support introducing or being a directory for onion service v2.
Closes#40509
Signed-off-by: David Goulet <dgoulet@torproject.org>
This also moves the warnings and add some theatrical effect around the
code so anyone modifying those list should notice the warnings signs and
read the comment accordingly.
Signed-off-by: David Goulet <dgoulet@torproject.org>
This proposal implements part of Prop335; it's based on a patch
from Neel Chauhan.
When configured to do so, authorities will assign a MiddleOnly flag
to certain relays. Any relay which an authority gives this flag
will not get Exit, V2Dir, Guard, or HSDir, and might get BadExit if
the authority votes for that one.
When we looked, this was the third most frequent message at
PROTOCOL_WARN, and doesn't actually tell us what to do about it.
Now:
* we just log it at info
* we log it only once per circuit
* we report, in the heartbeat, how many times it happens, how many
cells it happens with per circuit, and how long these circuits
have been alive (on average).
Fixes the final part of #40400.
This means that at this commit, tor will stop logging that v2 is
deprecated and treat a v2 address as a bad hostname that we can't use.
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
This effectively turns off the ability of tor to use HSv2 as a client by
invalidating the v2 onion hostname passed through a SOCKS request.
Part of #40476
Signed-off-by: David Goulet <dgoulet@torproject.org>
This one happens every time we get a failure from
circuit_receive_relay_cell -- but for all the relevant failing cases
in that function, we already log in that function.
This resolves one case of #40400. Two cases remain.
