Commit Graph

27563 Commits

Author SHA1 Message Date
Nick Mathewson
51377a917e Merge branch 'bug24658-rsa_squashed' 2018-02-01 12:10:07 -05:00
Fernando Fernandez Mancera
bdaf7ebc26 Add crypto_rsa.[ch] to include.am
Included crypto_rsa.[ch] into include.am in order to resolve a compiling issue.

Follows #24658.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
2018-02-01 12:09:36 -05:00
Fernando Fernandez Mancera
3812319bb1 Tweaks into functions and variables in crypto_rsa.[ch]
crypto_get_rsa_padding_overhead() and crypto_get_rsa_padding() are
not static inline anymore in order to split the crypto_rsa module
from crypto.[ch].

Also included necessary modules in order to solve dependency issues.

Also made two functions in crypto.c use crypto_pk_asn1_encdoe()
instead of reaching into the crypto_pk_t struct.
2018-02-01 12:08:54 -05:00
Fernando Fernandez Mancera
44a9ed7df2 Remove commented functions in crypto module.
OpenSSL never uses these callbacks anymore so the code is disabled.

Fixes #25097.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
2018-02-01 16:42:30 +01:00
Nick Mathewson
c2757c3774 Remove nodelist_recompute_all_hsdir_indices() as unused.
Closes 25108.
2018-02-01 08:44:47 -05:00
Nick Mathewson
ea8e9f17f5 Revert "Change the sandbox behavior on all failed opens() to EACCES"
This reverts commit 9a06282546.

It appears that I misunderstood how the seccomp2 filter rules
interact.  It appears that `SCMP_ACT_ERRNO()` always takes
precedence over `SCMP_ACT_ALLOW()` -- I had thought instead that
earlier rules would override later ones.  But this change caused bug
25115 (not in any released Tor).
2018-02-01 08:39:38 -05:00
Nick Mathewson
88b146cda5 Merge remote-tracking branch 'dgoulet/bug24469_033_01' 2018-02-01 08:22:44 -05:00
Nick Mathewson
ca85d66217 Merge branch 'maint-0.3.2' 2018-02-01 08:15:09 -05:00
Nick Mathewson
61cb2993dd Merge remote-tracking branch 'dgoulet/bug24975_032_01' into maint-0.3.2 2018-02-01 08:10:34 -05:00
Nick Mathewson
d1c2597096 Merge remote-tracking branch 'dgoulet/ticket24902_029_05' 2018-01-31 16:17:04 -05:00
Fernando Fernandez Mancera
33d9889a2b channel_tls_get_remote_addr_method now returns real_addr.
The accurate address of a connection is real_addr, not the addr member.
channel_tls_get_remote_addr_method() now returns real_addr instead.

Fixes #24952; bugfix on 707c1e2 in 0.2.4.11-alpha.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
2018-01-31 16:12:13 -05:00
David Goulet
fb93c6fc51 circ: Don't cannibalize a circuit if the guard state is unusable
Tor preemptiely builds circuits and they can be cannibalized later in their
lifetime. A Guard node can become unusable (from our guard state) but we can
still have circuits using that node opened. It is important to not pick those
circuits for any usage through the cannibalization process.

Fixes #24469

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-31 16:10:48 -05:00
Nick Mathewson
8b0b850efa Merge remote-tracking branch 'public/bug16106_02_nm' 2018-01-31 15:51:58 -05:00
Nick Mathewson
a846fd267e Merge branch 'bug23954_squashed' 2018-01-31 14:37:48 -05:00
Nick Mathewson
da778f2921 Use thread-safe types to store the LOG_PROTOCOL_WARN severity
Fixes a race condition; resolves 23954.
2018-01-31 14:37:09 -05:00
Nick Mathewson
d44080a09d Merge branch 'maint-0.3.2'
"ours" merge to avoid backport of #25105
2018-01-31 14:33:27 -05:00
Nick Mathewson
56857291b0 Merge branch 'bug25105_032' into maint-0.3.2 2018-01-31 14:33:12 -05:00
Nick Mathewson
98dd3757bf Merge branch 'bug25008' 2018-01-31 14:32:24 -05:00
David Goulet
fbc455cbd2 ns: Add a before and after consensus has changed notification
In 0.3.2.1-alpha, we've added notify_networkstatus_changed() in order to have
a way to notify other subsystems that the consensus just changed. The old and
new consensus are passed to it.

Before this patch, this was done _before_ the new consensus was set globally
(thus NOT accessible by getting the latest consensus). The scheduler
notification was assuming that it was set and select_scheduler() is looking at
the latest consensus to get the parameters it might needs. This was very wrong
because at that point it is still the old consensus set globally.

This commit changes the notify_networkstatus_changed() to be the "before"
function and adds an "after" notification from which the scheduler subsystem
is notified.

Fixes #24975
2018-01-31 14:15:02 -05:00
Nick Mathewson
31f2a8771c Look at the correct protocol for supports_v3_rendezvous_point
Fixes bug 25105; bugfix on 0.3.2.1-alpha.

(This is a backport of bbf2d9cf6b for 0.3.2.)
2018-01-31 14:09:47 -05:00
Nick Mathewson
3d937043c2 Fix a failing unit test.
When we stopped looking at the "protocols" variable directly, we
broke the hs_service/build_update_descriptors test, since it didn't
actually update any of the flags.

The fix here is to call summarize_protover_flags() from that test,
and to expose summarize_protover_flags() as "STATIC" from
routerparse.c.
2018-01-31 14:06:37 -05:00
Nick Mathewson
bbf2d9cf6b Look at the correct protocol for supports_v3_rendezvous_point
Fixes bug 25105; bugfix on 0.3.2.1-alpha.
2018-01-31 14:01:49 -05:00
David Goulet
c85f78e74c Revert "ns: Call notify_networkstatus_changed() after the new consensus is set globally"
This reverts commit 3a247ca92a.
2018-01-31 13:59:05 -05:00
Nick Mathewson
144bf015f8 Document remaining cases for protocol support
For each support flag, document which subprotocol version it requires.
2018-01-31 13:50:04 -05:00
Nick Mathewson
0dc1595d03 Merge branch 'maint-0.3.2' 2018-01-31 13:47:01 -05:00
Nick Mathewson
1c39d969b9 Merge remote-tracking branch 'dgoulet/bug24975_032_01' into maint-0.3.2 2018-01-31 13:46:58 -05:00
Nick Mathewson
2294e330bd Merge branch 'maint-0.3.2' 2018-01-31 12:51:45 -05:00
David Goulet
df312b3cf6 hs-v3: Remove a BUG() when storing a descriptor in the client cache
It is possible in normal circumstances that  a client fetches a descriptor
that has a lower revision counter than the one in its cache. This can happen
due to HSDir desync.

Fixes #24976

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-31 12:51:42 -05:00
David Goulet
3a247ca92a ns: Call notify_networkstatus_changed() after the new consensus is set globally
In 0.3.2.1-alpha, we've added this function in order to have a way to notify
other subsystems that the consensus just changed. The old consensus and the
new one are passed to it.

Before this patch, this was done _before_ the new consensus was set globally
(thus NOT accessible by getting the latest consensus). The scheduler
notification was assuming that it was set and select_scheduler() is looking at
the latest consensus to get the parameters it might needs. This was very wrong
because at that point it is still the old consensus set globally.

With this commit, notify_networkstatus_changed() has been moved _after_ the
new consensus is set globally. The main obvious reasons is to fix the bug
described above and in #24975. The other reason is that this notify function
doesn't return anything which could be allowing the possibility of refusing to
set the new consensus on error. In other words, the new consensus is set right
after the notification whatever happens.

It does no harm or change in behavior to set the new consensus first and then
notify the subsystems. The two functions currently used are for the control
port using the old and new consensus and sending the diff. The second is the
scheduler that needs the new consensus to be set globally before being called.

Of course, the function has been documented accordinly to clearly state it is
done _after_ the new consensus is set.

Fixes #24975

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-31 11:21:18 -05:00
Nick Mathewson
1e81aaa62f Merge branch 'maint-0.3.2' 2018-01-31 10:06:49 -05:00
Nick Mathewson
9bfb6fe395 Merge branch 'maint-0.3.1' into maint-0.3.2 2018-01-31 10:06:49 -05:00
Nick Mathewson
5fc0437e74 But in most Earth cultures, there are 60s in a minute. 2018-01-31 10:06:43 -05:00
Nick Mathewson
8b162443b9 Merge branch 'maint-0.3.2' 2018-01-31 10:01:13 -05:00
Nick Mathewson
cb90defba6 Merge branch 'maint-0.3.1' into maint-0.3.2 2018-01-31 10:01:13 -05:00
Nick Mathewson
86e6cb6409 add a rate-limit. 2018-01-31 10:01:10 -05:00
Nick Mathewson
69e242f845 Merge branch 'maint-0.3.2' 2018-01-31 09:50:24 -05:00
Nick Mathewson
e81896adda Merge branch 'maint-0.3.1' into maint-0.3.2 2018-01-31 09:50:24 -05:00
Nick Mathewson
914ec372a9 Merge branch 'bug24927' 2018-01-31 09:47:36 -05:00
Nick Mathewson
80c8689be1 Merge remote-tracking branch 'public/ticket24849_032' 2018-01-31 09:38:24 -05:00
Nick Mathewson
94878cf1ea Merge remote-tracking branch 'dgoulet/ticket24902_029_05' 2018-01-31 09:35:07 -05:00
teor
1f4a73133c test: Add unit tests for overflows and underflows in cc_stats_refill_bucket
Closes #25094.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-31 09:27:59 -05:00
teor
a09d5f5735 dos: Make sure cc_stats_refill_bucket can't overflow while calculating
Debug log the elapsed time in cc_stats_refill_bucket

Part of #25094.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-31 09:27:59 -05:00
Nick Mathewson
c0447033f5 Merge branch 'maint-0.3.2' 2018-01-31 09:19:55 -05:00
teor
b45ae1b002 test: Remove a redundant round from test_dos_bucket_refill
This round is left over from the tenths of a second code.

Part of #25094.
2018-01-31 09:19:39 -05:00
Nick Mathewson
d2ae1bfcb3 remove a redundant semicolon 2018-01-30 18:11:16 -05:00
David Goulet
cd81403cc0 Merge branch 'ticket24902_029_05' into ticket24902_033_02 2018-01-30 09:33:12 -05:00
David Goulet
9aca7d4730 dos: Add changes file for ticket 24902
Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-30 09:18:16 -05:00
David Goulet
e58a4fc6cf dos: Make circuit rate limit per second, not tenths anymore
Because this touches too many commits at once, it is made into one single
commit.

Remove the use of "tenths" for the circuit rate to simplify things. We can
only refill the buckets at best once every second because of the use of
approx_time() and our token system is set to be 1 token = 1 circuit so make
the rate a flat integer of circuit per second.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-30 09:18:16 -05:00
David Goulet
a3714268f6 dos: Man page entry for DoS mitigation
Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-30 09:18:16 -05:00
George Kadianakis
c3c2b55dec test: Add unit tests for the DoS subsystem
Signed-off-by: David Goulet <dgoulet@torproject.org>
2018-01-30 09:18:16 -05:00