Commit graph

269 commits

Author SHA1 Message Date
David Goulet
780e498f76 hs-v3: Code improvement for INTRO2 MAC validation
Pointed by nickm during the review of #32709.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-01-21 10:31:29 -05:00
David Goulet
02f1caa583 hs-v3: Validate INTRO2 cells for onion balance
Closes #32709

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-01-21 10:31:29 -05:00
David Goulet
ef28afa255 hs-v3: Add the Onion Balance config file option
At this commit, the service reads the config file and parse it to finally set
the service config object with the options.

Part of #32709

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-01-21 10:31:29 -05:00
George Kadianakis
f1498e75dd hs-v3: Extract INTRO2 key computation to its own function.
Part of #32709

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-01-21 10:28:26 -05:00
David Goulet
16a201e703 hs-v3: Implement hs_parse_address_no_log()
The hs_parse_address() can not be used without an options_t object existing
since on error it uses the escaped_safe_str() that looks at the options.

This new function won't log and returns an error message in case of failure
that can then be used to log.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-01-21 10:28:26 -05:00
Nick Mathewson
73ac1add3f Split core/include.am into per-subdirectory include.am files
Closes ticket 32137.
2020-01-13 09:34:17 -05:00
Nick Mathewson
e45810113b Merge branch 'pre_formatter_cleanups_squashed' 2020-01-09 07:32:39 -05:00
Nick Mathewson
2f7a2c42d2 Include ht.h in all headers that use HT_ENTRY()
Without this change, compilation success depends on include order in
several tricky ways.
2020-01-09 07:30:35 -05:00
Nick Mathewson
06d977b569 hs_circuitmap.h: use a struct declaration
This fixes a case where our compilation would depend on include order.
2020-01-09 07:30:35 -05:00
Nick Mathewson
6a6486a7bf hs_circuit: use struct declaration.
This frees us from a dependency on include order.
2020-01-09 07:30:35 -05:00
Nick Mathewson
4f02812242 It's 2020. Update the copyright dates with "make update-copyright" 2020-01-08 18:39:17 -05:00
teor
cd160291a7
Code Style: Delete headers that are included twice
These changes were created using the "make autostyle" from
32522, and then split into commits.
2019-12-20 09:53:31 +10:00
teor
d8b868e483
Code Style: Delete PRIVATE defines that are never used
Some ".c" files define *_PRIVATE macros, but those macros are
not used in any header file. Delete them.

These changes were created using the "make autostyle" from
32522, and then split into commits.
2019-12-20 09:50:50 +10:00
George Kadianakis
b7304027f6 Merge branch 'tor-github/pr/1587' 2019-12-18 14:19:15 +02:00
Neel Chauhan
a8b5b9a1bc In cancel_descriptor_fetches(), use connection_list_by_type_purpose() instead of connection_list_by_type_state() 2019-12-10 12:00:38 -05:00
George Kadianakis
a38014e5c6 Merge branch 'tor-github/pr/1581' 2019-12-10 18:34:00 +02:00
David Goulet
fc32349adc hs-v3: Handle client rendezvous circuit timeout
With v3, the "pending_final_cpath" of a circuit is always NULL which means
that for v3, established client rendezvous circuit waiting for the intro point
to ACK, will always end up timing out quickly.

This can increase the delays to which you connect to a service since in order
to succeed, the rendezvous circuit needs to fully established
(CIRCUIT_PURPOSE_C_REND_JOINED) within the cutoff of the introduction circuit
as well which is these days around 2-3 seconds.

Fixes #32021

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-12-10 18:33:48 +02:00
Nick Mathewson
fcb5656128 Merge branch 'ticket32609_squashed' 2019-12-04 12:15:28 -05:00
teor
9ad569c71d practracker: Add missing .may_include files
All of these files contain "*.h", except for:
* src/app/config/.may_include
* src/test/.may_include
which also contain "*.inc".

This change prevents includes of "*.c" files, and other
unusually named files.

Part of 32609.
2019-12-04 12:15:22 -05:00
David Goulet
3b64c6b6fc hs-v3: Fix NULL deref. in hs_circ_service_get_established_intro_circ()
Found by Stem regression tests. Reported by atagar.

Fixes #32664

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-12-03 10:11:42 -05:00
David Goulet
65759f2901 Merge branch 'tor-github/pr/1563' 2019-12-03 09:22:21 -05:00
George Kadianakis
12305b6bb6 hsv3: ONION_CLIENT_AUTH_REMOVE now also removes the credential file. 2019-12-03 09:22:17 -05:00
George Kadianakis
8ed8707f0a hsv3: Abstract parts of hs_config_client_authorization() into func.
Now we have a function that reads a file and returns a credential. We need that
for the REMOVE control port command.
2019-12-03 09:22:17 -05:00
George Kadianakis
763f337290 hsv3: Start refactoring hs_config_client_authorization().
- Remove key_dir which is useless.
- Kill an indentation layer.

We want to make it cleaner and slimmer so that we can reuse parts of it in the
REMOVE command for removing the right client auth file.
2019-12-03 09:22:17 -05:00
George Kadianakis
9395a0c765 hsv3: Remove support for client auth nicknames.
Because the function that parses client auth credentials saved on
disk (parse_auth_file_content()) is not future compatible, there is no way to
add support for storing the nickname on the disk. Hence, nicknames cannot
persist after Tor restart making them pretty much useless.

In the future we can introduce nicknames by adding a new file format for client
auth credentials, but this was not deemed worth doing at this stage.
2019-12-03 09:22:17 -05:00
George Kadianakis
70572b9abd hsv3: Implement permanent storage of auth credentials.
- See hs_client_register_auth_credentials() for the entry point.
- Also set the permanent flag for credentials we read from the filesystem.
- Also add some missing documentation.
2019-12-03 09:22:17 -05:00
David Goulet
a423cec670 hs-v3: Remove unused hs_service_intro_circ_has_closed()
Since the removal of ip->circuit_established, this function does litterally
nothing so clean it up.

Part of #32020

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-27 14:52:09 +02:00
David Goulet
cbc495453c hs-v3: Give a cleanup type to hs_circ_cleanup()
By centralizing the circuit cleanup type that is: on close, free and
repurpose, some actions on the circuit can not happen for a certain cleanup
type or for all types.

This passes a cleanup type so the HS subsystem (v2 and v3) can take actions
based on the type of cleanup.

For instance, there is slow code that we do not run on a circuit close but
rather only on free.

Part of #32020

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-27 14:52:09 +02:00
David Goulet
7f83c43594 hs-v3: Note client intro circuit failure
Report back to the v3 subsystem any introduction point client circuit failure
so they can be noted down in the failure cache.

Fixes #32020

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-27 14:52:09 +02:00
David Goulet
00136c9430 hs-v2: Move v2 circuit cleanup actions into hs_circ_cleanup()
Refactor to decomplexify circuit_about_to_free() and finally have one single
entry point into the HS subsystems (v2 and v3) for when a circuit is freed.

With this, hs_circ_cleanup() becomes the one and only entry point when a
circuit is freed which then routes to the right subsystem version for any
actions to be taken.

This moves a big chunk of code from circuituse.c to rendclient.c. No behavior
change. Next commit will refactor it to reduce our technical debt.

Part of #32020

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-20 10:25:52 -05:00
George Kadianakis
21b3303657 Rename REGISTER_SUCCESS_ALSO_DECRYPTED to REGISTER_SUCCESS_AND_DECRYPTED. 2019-11-18 19:21:45 +02:00
George Kadianakis
97fd75169d Various minor improvements after David's review.
- Fix a wrong log message
- Introduce a cap for the nickname size
- Change some 'if' statements to 'switch'.
2019-11-18 19:21:41 +02:00
George Kadianakis
ce422a9d4a hs-v3: Decrypt pending descriptors when we get new client auth creds. 2019-11-18 19:21:34 +02:00
George Kadianakis
db6a48b6bf control-port: Implement ONION_CLIENT_AUTH_VIEW. 2019-11-18 19:19:00 +02:00
George Kadianakis
8330b4dc2a control-port: Implement ONION_CLIENT_AUTH_REMOVE. 2019-11-18 19:18:49 +02:00
George Kadianakis
46f4415022 control-port: Tests for ONION_CLIENT_AUTH_ADD. 2019-11-18 19:18:45 +02:00
George Kadianakis
00fdaaee1e control-port: Implement ONION_CLIENT_AUTH_ADD. 2019-11-18 19:16:01 +02:00
George Kadianakis
d28b6792cb Merge branch 'tor-github/pr/1423' 2019-11-18 19:06:53 +02:00
David Goulet
3892ac7c71 test: Unit test for the hs cache decrypt on new auth
Part of #30382

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
David Goulet
68a004d147 hs-v3: Improve documentation of hs_cache_client_descriptor_t
Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
David Goulet
48a9f8a63f hs-v3: Function to re-parse unencrypted descriptor
We now keep descriptor that we can't decode due to missing client
authorization in the cache.

This new function is used when new client authorization are added and to tell
the client cache to retry decoding.

Part of #30382

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
David Goulet
fbc18c8989 hs-v3: Refactor descriptor dir fetch done code
This commit extract most of the code that dirclient.c had to handle the end of
a descriptor directory requests (fetch). It is moved into hs_client.c in order
to have one single point of entry and the rest is fully handled by the HS
subsystem.

As part of #30382, depending on how the descriptor ended up stored (decoded or
not), different SOCKS error code can be returned.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
David Goulet
542402cd60 hs-v3: Set extended error when missing/bad client auth
Part of #30382

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
David Goulet
fb1d212021 hs-v3: Set extended error when descriptor is not found
Part of #30382

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
David Goulet
7bba8bf72f hs-v3: Return descriptor decoding status when storing as client
This will allow us to callback into the HS subsytem depending on the decoding
status and return an extended SOCKS5 error code depending on the decoding
issue.

This is how we'll be able to tell the SocksPort connection if we are missing
or have bad client authorization for a service.

Part of #30382

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
David Goulet
96a53221b0 hs-v3: Keep descriptor in cache if client auth is missing or bad
We now keep the descriptor in the cache, obviously not decoded, if it can't be
decrypted for which we believe client authorization is missing or unusable
(bad).

This way, it can be used later once the client authorization are added or
updated.

Part of #30382

Signed-off-by: David Goulet <dgoulet@torproject.org>
2019-11-18 19:06:43 +02:00
Nick Mathewson
8b91680d5c Doxygen: rename all .dox files to end with .md
Using a standard ending here will let other tools that expect
markdown understand our output here.

This commit was automatically generated with:

   for fn in $(find src -name '*.dox'); do \
      git mv "$fn" "${fn%.dox}.md"; \
   done
2019-11-15 09:28:12 -05:00
Nick Mathewson
3a7369d0cf Doxygen: remove /** and **/ from all .dox files
This is an automatically generated commit, made with:

find src -name '*.dox' | \
   xargs  perl -i -ne 'print unless (m#^\s*/?\*\*/?\s*$#);'
2019-11-15 09:23:51 -05:00
Nick Mathewson
582cee723a Fix various doxygen comments in feature/hs. 2019-11-07 08:13:31 -05:00
Nick Mathewson
c6c02658cf hs_ident.c: make comments into doxygen. 2019-11-06 13:05:13 -05:00