When we fixed 25939 in f7633c1fca, we
introduced a call to rescan_periodic_events() from inside the onion
service logic. But this meant that we could rescan the event list --
thereby running event callbacks! -- from inside the hidden service code.
This could cause us to run some of our event callbacks from an
inconsistent state, if we were in the middle of changing options.
A related bug (#25761) prevented us from rescanning our periodic
events as appropriate, but when we fixed THAT one, this bug reared
its ugly head.
The fix here is that "enabling" an event should cause us to run it
from the event loop, but not immediately from the point where we
enable it.
Fixes bug 27003; bugfix on 0.3.4.1-alpha.
We would usually call it through tor_cleanup(), but in some code
paths, we wouldn't. These paths would break restart-in-process,
since leaving fields uncleared would cause assertion failures on
restart.
Fixes bug 26948; bugfix on 0.3.3.1-alpha
Conditionalize the pragma that temporarily disables
-Wunused-const-variable. Some versions of gcc don't support it. We
need to do this because of an apparent bug in some libzstd headers.
Fixes bug 26785; bugfix on 0.3.2.11.
Instead, log a protocol warning when single onion services or
Tor2web clients fail to authenticate direct connections to relays.
Fixes bug 26924; bugfix on 0.2.9.1-alpha.
Stop putting ed25519 link specifiers in v3 onion service descriptors,
when the intro point doesn't support ed25519 link authentication.
Fixes bug 26627; bugfix on 0.3.2.4-alpha.
Stop sending ed25519 link specifiers in v3 onion service introduce
cells, when the rendezvous point doesn't support ed25519 link
authentication.
Fixes bug 26627; bugfix on 0.3.2.4-alpha.
Our previous definition implied that code would never keep running
if a BUG occurred (which it does), and that BUG(x) might be true
even if x was false (which it can't be).
Closes ticket 26890. Bugfix on 0.3.1.4-alpha.
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.
The following bug was causing many issues for this branch in chutney:
In sr_state_get_start_time_of_current_protocol_run() we were using the
consensus valid-after to calculate beginning_of_current_round, but we were
using time(NULL) to calculate the current_round slot. This was causing time
sync issues when the consensus valid-after and time(NULL) were disagreeing on
what the current round is. Our fix is to use the consensus valid-after in both
places.
This also means that we are not using 'now' (aka time(NULL)) anymore in that
function, and hence we can remove that argument from the function (and its
callers). I'll do this in the next commit so that we keep things separated.
Furthermore, we fix a unittest that broke.
We only build a descriptor once, and we just re-encode it (and change its intro
points if needed) before uploading.
Hence we should set the revision counter before uploading, not during building.
The OPE cipher is tied to the current blinded key which is tied to the current
time period. Hence create the OPE cipher structure when we create a new
descriptor (and build its blinded key).
Now that the rev counter depends on the local time, we need to be more careful
in the unittests. Some unittests were breaking because they were using
consensus values from 1985, but they were not updating the local time
appropriately. That was causing the OPE module to complain that it was trying
to encrypt insanely large values.
To do so for a given descriptor, we use the "seconds since the SR protocol run"
started, for the SRV that is relevant to this descriptor. This is guaranteed to
be a positive value (since we need an SRV to be able to build a descriptor),
and it's also guaranteed to be a small value (since SRVs stop being listed on a
consensus after 48 hours).
We cannot use the "seconds since the time period started", because for the next
descriptor we use the next time period, so the timestamp would end up negative.
See [SERVICEUPLOAD] from rend-spec-v3.txt for more details.
To do so, we have to introduce a new `is_current` argument to a bunch of
functions, because to use "seconds since the SR protocol run" we need to know
if we are building the current or the next descriptor, since we use a different
SRV for each descriptor.
This is meant for use when encrypting the current time within the
period in order to get a monotonically increasing revision counter
without actually revealing our view of the time.
This scheme is far from the most state-of-the-art: don't use it for
anything else without careful analysis by somebody much smarter than
I am.
See ticket #25552 for some rationale for this logic.
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.
also add tests for bw_file_headers.
Headers are all that is found before a correct relay line or
the terminator.
Tests include:
* a empty bandwidth file
* a bandwidth file with only timestamp
* a bandwidth file with v1.0.0 headers
* a bandwidth file with v1.0.0 headers and relay lines
* a bandwidth file with v1.1.0 headers and v1.0.0 relay lines
* a bandwidth file with v1.0.0 headers, malformed relay lines and
relay lines
* a bandwidth file with v1.0.0 headers, malformed relay lines,
relay lines and malformed relay lines
* a bandwidth file with v1.1.0 headers without terminator
* a bandwidth file with v1.1.0 headers with terminator
* a bandwidth file with v1.1.0 headers without terminator and
relay lines
* a bandwidth file with v1.1.0 headers with terminator and relay
lines
* a bandwidth file with v1.1.0 headers without terminator, bad
relay lines and relay lines
* a bandwidth file with v1.1.0 headers with terminator, bad relay
lines and relay lines
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.
* add bwlist_headers argument to dirserv_read_measured_bandwidth
in order to store all the headers found when parsing the file
* add bwlist_headers to networkstatus_t in order to store the
the headers found by the previous function
* include the bandwidth headers as string in vote documents
* add test to check that dirserv_read_measured_bandwidth generates
the bwlist_headers
Coverity rightly complains that early in the function we're checking
whether username is NULL, and later we're passing it unconditionally
to strlen().
Fixes CID 1437967. Bug not in any released Tor.
This patch adds two assertions in get_net_param_from_list() to ensure
that the `res` value is correctly within the range of the output domain.
Hopefully fixes Coverity CID #1415721, #1415722, and #1415723.
See: https://bugs.torproject.org/26780
The "Bifroest" bridge authority has been retired; the new bridge authority
is "Serge", and it is operated by George from the TorBSD project.
Closes ticket 26771.
