Commit Graph

12780 Commits

Author SHA1 Message Date
teor
ecbc2e80a0
Merge remote-tracking branch 'tor-github/pr/747' into maint-0.2.9 2019-03-01 14:14:26 +10:00
teor
89a0b77740 rend: stop warning when clients send multiple rend establish cells
Stop logging "Tried to establish rendezvous on non-OR circuit..." as
a warning. Instead, log it as a protocol warning, because there is
nothing that relay operators can do to fix it.

Fixes bug 29029; bugfix on 0.2.5.7-rc.
2019-01-10 07:59:59 +10:00
Nick Mathewson
73de7b4bcb Merge branch 'bug21394_029_redux' into maint-0.2.9 2019-01-04 15:04:54 -05:00
teor
4991b29311 Fallbacks: Update the hard-coded fallback list in December 2018
Merge Phoul's two lists into teor's list.

Replace the 150 fallbacks originally introduced in Tor 0.3.3.1-alpha in
January 2018 (of which ~115 were still functional), with a list of
157 fallbacks (92 new, 65 existing, 85 removed) generated in
December 2018.

Closes ticket 24803.
2018-12-10 17:02:19 +10:00
teor
78e177d622 Fallbacks: Update the hard-coded fallback list in December 2018
Replace the 150 fallbacks originally introduced in Tor 0.3.3.1-alpha in
January 2018 (of which ~115 were still functional), with a list of
148 fallbacks (89 new, 59 existing, 91 removed) generated in
December 2018.

Closes ticket 24803.
2018-12-07 16:43:10 +10:00
Nick Mathewson
8569166c70 Merge remote-tracking branch 'public/bug24104_029_squashed' into maint-0.2.9
Resolved conflicts with the 26269 fix in 015fcd0e11.
2018-11-15 16:43:50 -05:00
Nick Mathewson
0878bb961f Fix two other cases of (buf + N > end) pattern
Related to fix for 28202.
2018-10-25 09:08:02 -04:00
Nick Mathewson
368413a321 Fix possible UB in an end-of-string check in get_next_token().
Remember, you can't check to see if there are N bytes left in a
buffer by doing (buf + N < end), since the buf + N computation might
take you off the end of the buffer and result in undefined behavior.

Fixes 28202; bugfix on 0.2.0.3-alpha.
2018-10-25 09:06:13 -04:00
cypherpunks
e24195c7c1 protover: reject invalid protocol names
The spec only allows the characters [A-Za-z0-9-].

Fix on b2b2e1c7f2.
Fixes #27316; bugfix on 0.2.9.4-alpha.
2018-09-14 02:18:04 +00:00
Nick Mathewson
9fcb3ef787 Merge remote-tracking branch 'teor/bug27461-029' into maint-0.2.9 2018-09-07 08:46:35 -04:00
teor
8ef4bb7f3e
Windows: Stop calling SetProcessDEPPolicy() on 64-bit Windows
It is not supported, and always fails. Some compilers warn about the
function pointer cast on 64-bit Windows.

Fixes bug 27461; bugfix on 0.2.2.23-alpha.
2018-09-07 12:58:11 +10:00
teor
9d5c6317b5
hs: Silence a spurious warning in rend_client_send_introduction()
gcc 8 warns that extend_info_t.nickname might be truncated by strncpy().

But it doesn't know that nickname can either contain a hex id, or a
nicknames. hex ids are only used for general and HSDir circuits.

Fixes bug 27463; bugfix on 0.1.1.2-alpha.
2018-09-07 12:40:11 +10:00
juga0
e033d98f79 Check descriptor bandwidth changed if not hibernating
There should be a separate check to update descriptor when start
or end hibernating.
2018-09-01 18:47:20 -04:00
juga0
e13ddee166 Allow mocking rep_hist_bandwidth_assess 2018-09-01 18:47:20 -04:00
juga0
6210d568ec Make bandwidth change factor a constant
used to determine large changes in bandwidth.
2018-09-01 18:47:20 -04:00
Nick Mathewson
9068e2fa28 Mark cert_matches_key as not-intrusive; fix stretch compilation. 2018-08-22 09:37:26 -04:00
teor
6443812e34 Stop logging link auth warnings on Single Onion Services and Tor2web
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.
2018-07-25 14:30:33 +10:00
Nick Mathewson
a321d72401 Merge branch 'bug26485_029_squashed' into maint-0.2.9 2018-07-18 15:01:03 -04:00
Nick Mathewson
8ee1fe7aa7 Warn when an authority has voted for a version with a space in it.
Another way to try to prevent a recurrence of 26485.
2018-07-18 15:00:53 -04:00
Nick Mathewson
dcee4d4c9c Warn the directory authority operator if their versions list is bogus
Prevents bug 26485; bugfix on 0.1.1.6-alpha.
2018-07-18 15:00:53 -04:00
Roger Dingledine
cd4795ca3e put new bridge auth Serge into place
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.
2018-07-12 14:12:13 -04:00
Nick Mathewson
8b53dfc362 Merge branch 'bug26269_029' into maint-0.2.9 2018-07-09 10:14:39 -04:00
Alexander Færøy
3395de51a0 Fix memory leak in disk_state_parse_commits().
This patch fixes a memory leak in disk_state_parse_commits() where if
commit is NULL, we continue the internal loop, but without ever freeing
the args variable.

See: Coverity CID 1437441.
2018-06-23 13:10:57 +02:00
Alexander Færøy
dcbfee246f Fix memory leak in frac_nodes_with_descriptors().
This patch fixes a memory leak in frac_nodes_with_descriptors() where
we might return without free'ing the bandwidths variable.

See: Coverity CID 1437451.
2018-06-23 13:10:29 +02:00
Nick Mathewson
015fcd0e11 Fix a GCC "potential null dereference" warning.
Fixes bug 26269; bugfix on c30be5a82d in 0.2.8.2-alpha
2018-06-13 10:34:53 -04:00
Linus Nordberg
6cf9288518 Add IPv6 orport address for dannenberg. 2018-06-12 09:44:01 -04:00
rl1987
719b5c1d27 Avoid out-of-bounds smartlist access in protover_compute_vote()
and contract_protocol_list()
2018-06-08 10:11:32 -04:00
juga0
7d70f67dea Check bandwidth changes only if small uptime
to upload a new descriptor.
2018-06-03 18:24:27 +00:00
Nick Mathewson
5eb2d58880 Add a missing return after marking a stream for bad connected cell
Fixes bug 26072; bugfix on 0.2.4.7-alpha.
2018-05-14 15:54:48 -04:00
David Goulet
bca8a104b2 Having a ControlPort open doesn't mean we are a client
The any_client_port_set() returns true if the ControlPort is set which is
wrong because we can have that port open but still not behave as a tor client
(like many relays for instance).

Fixes #26062

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-05-09 12:50:53 -04:00
teor
d465bd27ed
Stop logging stack contents when reading a zero-length bandwidth file
When directory authorities read a zero-byte bandwidth file, they log
a warning with the contents of an uninitialised buffer. Log a warning
about the empty file instead.

Fixes bug 26007; bugfix on 0.2.2.1-alpha.
2018-05-02 22:36:23 +10:00
Nick Mathewson
10a1969ca3 Merge remote-tracking branch 'ahf-github/bugs/24854_029_2' into maint-0.2.9 2018-04-10 14:25:57 -04:00
Alexander Færøy
1295044dc8 Lift the list of default directory servers into their own file.
This patch lifts the list of default directory authorities from config.c
into their own auth_dirs.inc file, which is then included in config.c
using the C preprocessor.

Patch by beastr0.

See: https://bugs.torproject.org/24854
2018-04-09 16:00:26 +02:00
Dhalgren
06484eb5e1 Bug 21394 touchup: Increase DNS attempts to 3
Also don't give up on a resolver as quickly if multiple are configured.
2018-04-04 08:54:25 -04:00
Taylor Yu
4bb7d9fd12 Fix CID 1430932
Coverity found a null pointer reference in nodelist_add_microdesc().
This is almost certainly impossible assuming that the routerstatus_t
returned by router_get_consensus_status_by_descriptor_digest() always
corresponds to an entry in the nodelist.  Fixes bug 25629.
2018-03-27 15:29:00 -05:00
Nick Mathewson
c5295cc1be Spec conformance on protover: always reject ranges where lo>hi 2018-03-01 16:05:17 -05:00
Nick Mathewson
1fe0bae508 Forbid UINT32_MAX as a protocol version
The C code and the rust code had different separate integer overflow
bugs here.  That suggests that we're better off just forbidding this
pathological case.

Also, add tests for expected behavior on receiving a bad protocol
list in a consensus.

Fixes another part of 25249.
2018-03-01 16:05:17 -05:00
Nick Mathewson
8b405c609e Forbid "-0" as a protocol version.
Fixes part of 24249; bugfix on 0.2.9.4-alpha.
2018-03-01 16:05:17 -05:00
Nick Mathewson
a83650852d Add another NULL-pointer fix for protover.c.
This one can only be exploited if you can generate a correctly
signed consensus, so it's not as bad as 25074.

Fixes bug 25251; also tracked as TROVE-2018-004.
2018-03-01 16:05:17 -05:00
Nick Mathewson
65f2eec694 Correctly handle NULL returns from parse_protocol_list when voting.
In some cases we had checked for it, but in others we had not.  One
of these cases could have been used to remotely cause
denial-of-service against directory authorities while they attempted
to vote.

Fixes TROVE-2018-001.
2018-03-01 16:05:17 -05:00
Nick Mathewson
cb92d47dec Merge remote-tracking branch 'dgoulet/ticket24902_029_05' into maint-0.2.9 2018-02-16 09:41:06 -05:00
Roger Dingledine
2b99350ca4 stop calling channel_mark_client in response to a create_fast
since all it does is produce false positives

this commit should get merged into 0.2.9 and 0.3.0 *and* 0.3.1, even
though the code in the previous commit is already present in 0.3.1. sorry
for the mess.
2018-02-16 08:46:31 -05:00
Roger Dingledine
8d5dcdbda2 backport to make channel_is_client() accurate
This commit takes a piece of commit af8cadf3a9 and a piece of commit
46fe353f25, with the goal of making channel_is_client() be based on what
sort of connection handshake the other side used, rather than seeing
whether the other side ever sent a create_fast cell to us.
2018-02-16 08:39:10 -05:00
David Goulet
b60ffc5ce0 Merge remote-tracking branch 'dgoulet/bug25223_029_01' into ticket24902_029_05 2018-02-13 13:11:10 -05:00
David Goulet
305e39d0f8 dos: Add extra safety asserts in cc_stats_refill_bucket()
Never allow the function to set a bucket value above the allowed circuit
burst.

Closes #25202

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-02-13 10:41:21 -05:00
David Goulet
4fe4f8179f dos: Don't set consensus param if we aren't a public relay
We had this safeguard around dos_init() but not when the consensus changes
which can modify consensus parameters and possibly enable the DoS mitigation
even if tor wasn't a public relay.

Fixes #25223

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-02-13 10:35:41 -05:00
David Goulet
e658dad625 dirserv: Improve returned message when relay is rejected
Explicitly inform the operator of the rejected relay to set a valid email
address in the ContactInfo field and contact bad-relays@ mailing list.

Fixes #25170

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-02-13 08:47:42 -05:00
Nick Mathewson
e91bae66d8 Merge branch 'bug23318-redux_029' into maint-0.2.9 2018-02-12 08:33:03 -05:00
David Goulet
666582a679 dos: Exclude known relays from client connection count
This is to avoid positively identifying Exit relays if tor client connection
comes from them that is reentering the network.

One thing to note is that this is done only in the DoS subsystem but we'll
still add it to the geoip cache as a "client" seen. This is done that way so
to avoid as much as possible changing the current behavior of the geoip client
cache since this is being backported.

Closes #25193

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-02-09 11:13:04 -05:00
David Goulet
112638921b Merge branch 'ticket25183_029_01' into ticket24902_029_05 2018-02-08 16:56:21 -05:00