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.
We have to check for ERR_load_KDF_strings() here, since that's the
only one that's actually a function rather than a macro.
Fixes compilation with LibreSSL. Fixes bug 26712; bug not in
any released Tor.
That place is git-revision.c; git-revision.c now lives in lib/log.
Also fix the compilation rules so that all object files that need
micro-revision.i depend on it.
Fun fact: these files used to be called log.[ch] until we ran into
conflicts with systems having a log.h file. But now that we always
include "lib/log/log.h", we should be fine.
This function has a nasty API, since whether or not it invokes the
resolver depends on whether one of its arguments is NULL. That's a
good way for accidents to happen.
This patch incidentally makes tor-resolve support socks hosts on
IPv6.
These are now combined into an inaddr.[ch], since their purpose is
to implement functions for struct in_addr and struct in6_addr.
The definitions for in6_addr and its allies are now in a separate
header, inaddr_st.h.
Closes ticket 26532.
This commit won't build yet -- it just puts everything in a slightly
more logical place.
The reasoning here is that "src/core" will hold the stuff that every (or
nearly every) tor instance will need in order to do onion routing.
Other features (including some necessary ones) will live in
"src/feature". The "src/app" directory will hold the stuff needed
to have Tor be an application you can actually run.
This commit DOES NOT refactor the former contents of src/or into a
logical set of acyclic libraries, or change any code at all. That
will have to come in the future.
We will continue to move things around and split them in the future,
but I hope this lays a reasonable groundwork for doing so.
This is a very gentle commit that just lays the groundwork in the
build system: it puts the include files to build libtor-app.a into
src/core, and to build the tor executable into src/app. The
executable is now "src/app/tor".
This is temporary, until src/or is split.
Putting this in containers would be another logical alternative,
except that addresses depend on containers, and we don't like
cycles.
When on a private network a single directory authority is explicitly
configured, allow that DA's instace of tor to pick itself as its own
DA, by having router_pick_dirserver_generic() set the PDS_ALLOW_SELF
flag when the list of potential sources contains only one element.
This would subsequently allow router_pick_trusteddirserver_impl() to
calculate is 'requreother' condition as 'false', enabling it to pick
itself as a valid DA candidate.
Fixes#25928
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
Recent Python3 versions seem to require this on Windows.
Fixes bug 26535; bug introduced in f4be34f70d, which
was apparently intended itself as a Python3 workaround.
When we do redefine them, use inline functions instead of #define.
This fixes a latent code problem in our redefinition of these
functions, which was exposed by our refactoring: Previously, we
would #define strcasecmp after string.h was included, so nothing bad
would happen. But when we refactored, we would sometimes #define it
first, which was a problem on mingw, whose headers contain
(approximately):
inline int strcasecmp (const char *a, const char *b)
{ return _stricmp(a,b); }
Our define turned this into:
inline int _stricmp(const char *a, const char *b)
{ return _stricmp(a,b); }
And GCC would correctly infer that this function would loop forever,
rather than actually comparing anything. This caused bug 26594.
Fixes bug 26594; bug not in any released version of Tor.
