In order to switch the default HS version from 2 to 3, we need tor to be smart
and be able to decide on the version by trying to load the service keys during
configuration validation.
Part of #27215
Signed-off-by: David Goulet <dgoulet@torproject.org>
Part of #27215, we need to call the ed_key_init_from_file function during
option_validate() which is before the global_options variable is set.
This commit make ed_key_init_from_file() stop using get_options() and instead
now has a or_options_t parameter.
Signed-off-by: David Goulet <dgoulet@torproject.org>
Bug description: For each descriptor, its revision counter is the OPE
ciphertext of the number of seconds since the start time of its SRV value.
This bug caused us to confuse the SRV start time in the middle of the lifetime
of a descriptor in some edge-cases, which caused descriptor rejects.
Bug cause: The bug occurs when we fetch a 23:00 consensus after
midnight (e.g. at 00:08 when not all dirauths have fetched the latest 00:00
consensus). In that case, the voting schedule (which was used for SRV start
time calculation) would return a valid-after past-midnight, whereas our
consensus would be pre-midnight, and that would confuse the SRV start time
computation which is used by HS revision counters (because we would reset the
start time of SRV, without rotating descriptors).
Bug fix: We now use our local consensus time to calculate the SRV start time,
instead of the voting schedule. The voting schedule does not work as originally
envisioned in this case, because it was created for voting by dirauths and not
for scheduling stuff on clients.
At the same time, sternly warn any person thinking about relying on
any particular format too strictly. If you do this, and your
program breaks, it is your bug, not mine.
We need this so that the tor_api user can specify some arguments,
while the tor_api implementation adds others.
This implementation detail should not be visible to tor_api users.
This is another attempt to fix 1437668. The assertion here should
be safe, since the rules of networkstatus_get_param() keep the value
it returns in range.
If an authority is not configured with a V3BandwidthsFile, this line
SHOULD NOT appear in its vote.
If an authority is configured with a V3BandwidthsFile, but parsing
fails, this line SHOULD appear in its vote, but without any headers.
Part of 3723, implements the spec in 26799.
If bandwidth file terminator is found, set end of headers flag
and do not store the line.
If it is not, parse a relay line and check whether it is a header
line.
