Commit Graph

20 Commits

Author SHA1 Message Date
Isis Lovecruft
fe3aca1491
crypto: Refactor (P)RNG functionality into new crypto_rand module.
* ADD new /src/common/crypto_rand.[ch] module.
 * ADD new /src/common/crypto_util.[ch] module (contains the memwipe()
   function, since all crypto_* modules need this).
 * FIXES part of #24658: https://bugs.torproject.org/24658
2018-04-06 21:45:28 +00:00
Isis Lovecruft
fae5254783
hs: Fix two typos in an inline comment.
* FIXES #25602: https://bugs.torproject.org/25602
2018-03-22 22:33:34 +00:00
David Goulet
7c543412fc prop224: Add a function to clear INTRO data
New function named hs_cell_introduce1_data_clear() is introduced to clear off
an hs_cell_introduce1_data_t object.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-24 13:03:28 -04:00
David Goulet
ee15c16742 prop224: Parse RENDEZVOUS2 cell
Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-24 13:03:28 -04:00
David Goulet
fca2f64e2f prop224: Handle INTRODUCE_ACK cell
The client is now able to handle an INTRODUCE_ACK cell and do the appropriate
actions.

An intro point failure cache is missing and a way to close all intro point
that were launched in parallel. Some notes are in the comment for that.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-24 13:03:28 -04:00
David Goulet
cb336a7062 prop224: Parse INTRODUCE_ACK cell
Add a function to parse an INTRODUCE_ACK cell in hs_cell.c. Furthermore, add
an enum that lists all possible expected status code.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-24 13:03:28 -04:00
David Goulet
b91693f7c3 prop224: Build ESTABLISH_RENDEZVOUS cell and logic
Add a function to build the cell.

Add a the logic to send the cell when the rendezvous circuit opens.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-24 13:03:28 -04:00
David Goulet
d599325b5e prop224: Build INTRODUCE1 cell and send logic
Add a function in hs_cell.{c|h} for a client to build an INTRODUCE1 cell using
an object that contains all the needed keys to do so.

Add an entry point in hs_client.c that allows a tor client to send an
INTRODUCE1 cell on a given introduction circuit.

It includes the building of the cell, sending it and the setup of the
rendezvous circuit with the circuit identifier.

The entry point function is still unused at this commit.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-24 13:03:28 -04:00
David Goulet
257f50b22f Make Windows happy for time_t printf format
Our Windows compiler treats "time_t" as long long int but Linux likes it
long int so cast those to make Windows happy.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-11 15:08:45 -04:00
George Kadianakis
0a0bbfe96f Add note about handling INTRODUCE2 cells.
Also fix a check-spaces instance.
2017-08-08 20:29:35 -04:00
George Kadianakis
a561a10da7 Fix small easy bugs all around
- Fix log message format string.
- Do extra circuit purpose check.
- wipe memory in a clear function
- Make sure we don't double add intro points in our list
- Make sure we don't double close intro circuits.
- s/tt_u64_op/tt_i64_op/
2017-08-08 20:29:34 -04:00
George Kadianakis
74981d1f13 memwipe interesting unused memory 2017-08-08 20:29:34 -04:00
David Goulet
708789025d prop224: Remove INTRODUCE2 legacy handling
Turns out that introduction points don't care about the INTRODUCE2 cell
format as long as the top field is LEGACY_KEY_ID as expected. So let's
use a single INTRODUCE format regardless of the introduction point being
legacy or not.

This also removes the polymorphic void* situation.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:34 -04:00
David Goulet
27dd1a716c prop224: Support INTRODUCE2 cell replay cache
Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:33 -04:00
David Goulet
100386e659 prop224: Support legacy INTRODUCE2 cell
Also rename some function to follow a bit more the naming convention in that
file.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:33 -04:00
David Goulet
dfa6301aed prop224: Handle service RENDEZVOUS1 cell
Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:33 -04:00
David Goulet
acc7c4ee95 prop224: Establish rendezvous circuit for service
Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:33 -04:00
David Goulet
5e710368b3 prop224: Handle service INTRODUCE2 cell
At this commit, launching rendezvous circuit is not implemented, only a
placeholder.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:33 -04:00
David Goulet
79e8d113d5 prop224: Handle service INTRO_ESTABLISHED cell
Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:33 -04:00
David Goulet
d765cf30b5 prop224: Circuit has opened and ESTABLISH_INTRO cell
Add the entry point from the circuit subsystem of "circuit has opened" which
is for all type of hidden service circuits. For the introduction point, this
commit actually adds the support for handling those circuits when opened and
sending ESTABLISH_INTRO on a circuit.

Rendevzou point circuit aren't supported yet at this commit.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2017-08-08 20:29:33 -04:00