Commit Graph

1063 Commits

Author SHA1 Message Date
George Kadianakis
901ed35709 Make n_subcredentials a size_t .
Based on David's review.
2020-02-11 02:13:40 +02:00
George Kadianakis
ba99287d13 Write unittest that covers cases of INTRODUCE1 handling.
Also fix some memleaks of other OB unittests.
2020-01-28 01:08:41 +02:00
George Kadianakis
635f58bad2 Introduce an hs_ob_free_all() function. 2020-01-28 01:07:51 +02:00
George Kadianakis
0133169481 Allow clients to connect to the instance even with OB enabled.
We do this by including the instance's subcredentials to the list of
subcredentials that are used during INTRO2 decryption.
2020-01-28 01:07:51 +02:00
George Kadianakis
c731988cb2 Unify INTRO2 handling codepaths in OB and normal cases.
Now we use the exact same INTRO2 decrypt logic regardless of whether the
service is an OB instance or not.

The new get_subcredential_for_handling_intro2_cell() function is responsible
for loading the right subcredentials in either case.
2020-01-28 01:07:51 +02:00
George Kadianakis
da15feb0d3 Refresh OB keys when we build a new descriptor.
We now assign OB subcredentials to the service instead of computing them on the
spot. See hs_ob_refresh_keys() for more details.
2020-01-28 01:07:28 +02:00
Nick Mathewson
942543253a Use time-invariant conditional memcpy to make onionbalance loop safer 2020-01-21 10:31:36 -05:00
Nick Mathewson
b6250236a2 Pass multiple subcredentials all the way down to hs_ntor.
This approach saves us a pair of curve25519 operations for every
subcredential but the first.  It is not yet constant-time.

I've noted a few places where IMO we should refactor the code so
that the complete list of subcredentials is passed in earlier.
2020-01-21 10:31:36 -05:00
Nick Mathewson
bd0efb2702 Remove a dead BUG() check. 2020-01-21 10:31:29 -05:00
Nick Mathewson
4532c7ef6a Turn hs_subcredential_t into a proper struct. 2020-01-21 10:31:29 -05:00
David Goulet
faada6af8d hs-v3: Implement hs_ob_service_is_instance()
Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-01-21 10:31:29 -05:00
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
David Goulet
ca8b90a843 Merge branch 'tor-github/pr/1668' 2020-01-20 10:44:03 -05:00
teor
b23b8fa4a1
Merge remote-tracking branch 'tor-github/pr/1673' 2020-01-20 15:52:40 +10:00
teor
3851128e88
Merge branch 'ticket20218_rebased_squashed' into ticket20218_merged
* ticket 32695 removed networkstatus_consensus_has_ipv6(),
  keep that change in master.
* ticket 20218 modifies the function name and comment for
  routerstatus_has_visibly_changed(), keep that change
  in ticket20218_rebased_squashed.
2020-01-20 15:50:54 +10:00
Nick Mathewson
e2637214f2
split a wide line 2020-01-20 15:48:49 +10:00
Nick Mathewson
152cbf2a59
Rename routerstatus_has_changed to routerstatus_has_visibly_changed
This is an automated commit, generated by this command:

./scripts/maint/rename_c_identifier.py \
        routerstatus_has_changed routerstatus_has_visibly_changed

It was generated with --no-verify, since it introduces a wide line.
I'll fix it in a subsequent commit.
2020-01-20 15:48:45 +10:00
Nick Mathewson
d7a22160f5 Revert "Restore feature where nt-services detect non-"run_tor" modes."
This reverts commit 5c240db0bf.
2020-01-17 08:39:49 -05:00
Nick Mathewson
7f03ba06d8 Merge branch 'ticket32806' 2020-01-17 08:37:33 -05:00
Nick Mathewson
6d2b9c9631 Remove some dead checks
The only code that could set these options to be negative was in the
unit tests.
2020-01-17 08:31:22 -05:00
Nick Mathewson
648e1afc33 fix a stray asterisk in a comment 2020-01-17 08:25:09 -05:00
Nick Mathewson
abd9ae48ac Merge branch 'ticket32487_squashed_and_merged' 2020-01-17 07:50:50 -05:00
Nick Mathewson
01fdc3240f Merge branch 'ticket32695_squashed' 2020-01-16 16:42:01 -05:00
Nick Mathewson
ceacda44f1 Remove functions that checked for pre-ipv6 consensus.
We no longer need or need to test:
  * node_awaiting_ipv6()
  * networkstatus_consensus_has_ipv6().
2020-01-16 16:41:53 -05:00
Nick Mathewson
8d94bcbf8c Remove routerstatus_format_entry() consensus_method argument as unused 2020-01-16 16:41:53 -05:00
Nick Mathewson
441a048a3a Remove support for now-obsolete consensus methods before 28.
Closes ticket 32695.
2020-01-16 16:41:53 -05:00
Nick Mathewson
60a0d7d1e8 expose routerstatus_has_changed to unit tests. 2020-01-16 12:14:12 -05:00
Victor Nepveu
594e5ce635 Refactor routerstatus_has_changed function
- Check all fields that might change in a routerstatus
- Document the refactoring

Signed-off-by: Victor Nepveu <victor.nepveu@imt-atlantique.net>
2020-01-16 10:39:15 -05:00
Nick Mathewson
3c89622e39 Merge branch 'ticket32487_squashed' into ticket32487_squashed_and_merged
Resolved conflicts in src/core/include.am
2020-01-16 07:57:37 -05:00
Nick Mathewson
a623a49777 Add have_module_dircache(). 2020-01-16 07:48:17 -05:00
Nick Mathewson
5cff1ce84b Turn several functions from stubs into macros
This may help the compiler eliminate deadcode.
2020-01-16 07:48:17 -05:00
Nick Mathewson
6ba4b5e5da Rename dirclient_modes.h identifiers to start with dirclient_
This is an automated commit, generated by this command:

./scripts/maint/rename_c_identifier.py \
        directory_must_use_begindir dirclient_must_use_begindir \
        directory_fetches_from_authorities dirclient_fetches_from_authorities \
        directory_fetches_dir_info_early dirclient_fetches_dir_info_early \
        directory_fetches_dir_info_later dirclient_fetches_dir_info_later \
        directory_too_idle_to_fetch_descriptors dirclient_too_idle_to_fetch_descriptors
2020-01-16 07:48:17 -05:00
Nick Mathewson
8d1f31190e Move directory_must_use_begindir() to dirclient_modes.[ch] 2020-01-16 07:48:17 -05:00
Nick Mathewson
773bcf5629 Move dirclient-related functions out of dirserv, and reenable them
I had incorrectly identified these functions as dircache-only, when
in fact they apply to everyone who acts a directory client.
2020-01-16 07:48:17 -05:00
Nick Mathewson
8a0c739467 Disable feature/dircache files when dircache module is disabled.
To make Tor still work, we define a minimal dircache_stub.c file
that defines the entry points to the module that can actually be
seen by the compiler when we're building with dircache and relay
disabled.
2020-01-16 07:48:17 -05:00
Nick Mathewson
fe8156dbc2 Move dirserv_get_routerdescs() to control_getinfo.c
This function had some XXX comments indicating (correctly) that it
was not actually used by the dirserver code, and that only the
controller still used it.
2020-01-16 07:48:17 -05:00
Nick Mathewson
4cf15ee015 Move dir_split_resource_into_spoolable() to dircache module.
Only directory caches actually need to spool things.
2020-01-16 07:48:17 -05:00
Alexander Færøy
ca9a5390ff Don't escape the bridge distribution value.
We already check if there are invalid values in
check_bridge_distribution_setting() and reject the value if that is the
case. We can therefore only have strings of [A-Z] | [a-z] | [0-9] | '-'
| '_' here which is according to the directory specification.

See: https://bugs.torproject.org/32753
2020-01-15 23:41:58 +00:00
teor
f3cbc26bdd
add_c_file: Fix "control line not preceded by a blank line"
Fix dirauth and relay module include.am add_c_file.py
"control line not preceded by a blank line" errors.

Also remove a duplicate ADD_C_FILE: SOURCES in the relay module.

Obviously correct fixes to already-reviewed code.
2020-01-16 09:38:26 +10:00
Alexander Færøy
399ec3130b Remove "hyphae" as a known value for BridgeDistribution.
This patch removes hyphae as a known value for the BridgeDistribution
option in torrc.
2020-01-15 23:20:27 +00:00
Nick Mathewson
5e70c27e85 Merge remote-tracking branch 'tor-github/pr/1657' 2020-01-15 13:10:14 -05:00
Alexander Færøy
1c8bafcdf9 Lowercase BridgeDistribution value before adding it to the descriptor.
This patch makes sure we lowercase the value of BridgeDistribution
before we add it to the descriptor as `bridge-distribution-request`.

See: https://bugs.torproject.org/32753
2020-01-15 17:22:47 +00:00
Alexander Færøy
026f0c7184 Make BridgeDistribution setting validator case-insensitive.
This patch makes sure that we accept values such as "nOne", "None", and
"AnY" as valid values for BridgeDistribution. We later ensure to
lower-case the values before they are forwarded to the BridgeDB.

See: https://bugs.torproject.org/32753
2020-01-15 17:21:10 +00:00
Alexander Færøy
3f20a69afb Always escape BridgeDistribution value from torrc in descriptors.
When the BridgeDistribution value was added in commit
ebab521525 the check for whether the value
contains '\n' or '\r' was added as a requirement for whether or not the
value should be escaped.

This patch removes this check and makes sure we call `escaped()` on the
value every time before we add it to a descriptor.

See: https://bugs.torproject.org/32753
2020-01-15 17:18:30 +00:00
teor
5fa7c1b13f
Merge remote-tracking branch 'tor-github/pr/1661' 2020-01-16 00:46:31 +10:00
Nick Mathewson
165a92e33f Replace an assertion with a check-and-log
We hit this assertion with bug 32868, but I'm stymied figuring out
how we wound up with a routerstatus like this.  This patch is a
diagnostic to attempt to figure out what is going on, and to avoid a
crash in the meantime.
2020-01-14 13:16:39 -05:00