Commit graph

293 commits

Author SHA1 Message Date
George Kadianakis
e688580277 Implement rate limiting metrics. 2021-03-17 18:22:38 +02:00
George Kadianakis
faf1fe833e Implement port/file-descriptor exhaustion metric.
This uses a heuristic that came up after a discussion with David.

I'm leaving this as a separate commit so that it can be discussed further if
needed.
2021-03-17 18:22:38 +02:00
David Goulet
38649b4f95 relay: Remove dirport reachability self test
Regular relays are about to get their DirPort removed so that reachability
test is not useful anymore

Authorities will still use the DirPort but because network reentry towards
their DirPort is now denied network wide, this test is not useful anymore and
so it should simply be considered reachable at all time.

Part of #40282

Signed-off-by: David Goulet <dgoulet@torproject.org>
2021-02-22 08:52:06 -05:00
David Goulet
2c865542b6 hs-v2: Removal of service and relay support
This is unfortunately massive but both functionalities were extremely
intertwined and it would have required us to actually change the HSv2 code in
order to be able to split this into multiple commits.

After this commit, there are still artefacts of v2 in the code but there is no
more support for service, intro point and HSDir.

The v2 support for rendezvous circuit is still available since that code is
the same for the v3 and we will leave it in so if a client is able to
rendezvous on v2 then it can still transfer traffic. Once the entire network
has moved away from v2, we can remove v2 rendezvous point support.

Related to #40266

Signed-off-by: David Goulet <dgoulet@torproject.org>
2021-02-19 13:20:48 -05:00
David Goulet
2444629c86 hs-v2: Remove client support
Related to #40266

Signed-off-by: David Goulet <dgoulet@torproject.org>
2021-02-19 13:19:08 -05:00
George Kadianakis
cf1f03fe1d Merge remote-tracking branch 'tor-gitlab/mr/308' 2021-02-19 13:25:47 +02:00
David Goulet
9f61d9238c metrics: Handle the connection finished flushing event
Turns out, we forgot to add the METRICS connection type fo the finished
flushing handler.

Fixes #40295

Signed-off-by: David Goulet <dgoulet@torproject.org>
2021-02-17 09:54:05 -05:00
Nick Mathewson
d6b82d79dc Merge branch 'maint-0.4.5' 2021-02-08 14:28:19 -05:00
David Goulet
01c4abc2d4 conn: Properly close MetricsPort socket on EOF
Handle the EOF situation for a metrics connection. Furthermore, if we failed
to fetch the data from the inbuf properly, mark the socket as closed because
the caller, connection_process_inbuf(), assumes that we did so on error.

Fixes #40257

Signed-off-by: David Goulet <dgoulet@torproject.org>
2021-02-08 14:26:45 -05:00
Neel Chauhan
a82b4eb305 src/core/mainloop: Put brackets around IPv6 addresses in log messages 2021-01-27 08:23:39 -08:00
George Kadianakis
42e95c8d85 Merge branch 'maint-0.4.5' 2021-01-12 18:05:32 +02:00
David Goulet
9b59ede8d3 Merge branch 'ticket40237_044_01' into ticket40237_045_01 2021-01-12 10:55:21 -05:00
David Goulet
b3652f2104 Merge branch 'ticket40237_043_01' into ticket40237_044_01 2021-01-12 10:54:31 -05:00
David Goulet
60da5d6222 Merge branch 'ticket40237_035_01' into ticket40237_043_01 2021-01-12 10:46:25 -05:00
David Goulet
04b0263974 hs-v3: Require reasonably live consensus
Some days before this commit, the network experienced a DDoS on the directory
authorities that prevented them to generate a consensus for more than 5 hours
straight.

That in turn entirely disabled onion service v3, client and service side, due
to the subsystem requiring a live consensus to function properly.

We know require a reasonably live consensus which means that the HSv3
subsystem will to its job for using the best consensus tor can find. If the
entire network is using an old consensus, than this should be alright.

If the service happens to use a live consensus while a client is not, it
should still work because the client will use the current SRV it sees which
might be the previous SRV for the service for which it still publish
descriptors for.

If the service is using an old one and somehow can't get a new one while
clients are on a new one, then reachability issues might arise. However, this
is a situation we already have at the moment since the service will simply not
work if it doesn't have a live consensus while a client has one.

Fixes #40237

Signed-off-by: David Goulet <dgoulet@torproject.org>
2021-01-12 09:46:35 -05:00
Alexander Færøy
b645fbdb54 Merge remote-tracking branch 'tor-gitlab/mr/207' 2020-12-18 14:19:24 +00:00
David Goulet
7c06707750 Merge branch 'tor-gitlab/mr/182' into master 2020-11-17 10:36:05 -05:00
Nick Mathewson
6c61011781 Merge remote-tracking branch 'tor-gitlab/mr/184' into master 2020-11-17 08:22:44 -05:00
Neel Chauhan
d1494d140c Remove orconn_ext_or_id_map and related functions 2020-11-12 11:19:21 -08:00
Samanta Navarro
4a0cd79588 Fix typos.
Typos found with codespell.

Please keep in mind that this should have impact on actual code
and must be carefully evaluated:

src/core/or/lttng_circuit.inc
-    ctf_enum_value("CONTROLER", CIRCUIT_PURPOSE_CONTROLLER)
+    ctf_enum_value("CONTROLLER", CIRCUIT_PURPOSE_CONTROLLER)
2020-11-12 11:44:09 -05:00
George Kadianakis
6178a64fcf Abstract v2/v3 "write stats to file" logic into a single function. 2020-11-03 11:12:17 +02:00
George Kadianakis
bd28551763 Introduce v3_stats_t structure and some of its methods. 2020-11-03 11:09:24 +02:00
George Kadianakis
1de7843658 Make room for v3: s/hs_stats/hs_v2_stats/ 2020-11-02 21:05:05 +02:00
Neel Chauhan
09b3af578d Stop forcing IPv4 and IPv6 traffic on non-SOCKSPorts 2020-10-27 17:57:48 -07:00
David Goulet
2fe0322fe4 hs: Collect service traffic metrics
Related to #40063

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-10-27 10:43:42 -04:00
David Goulet
4f5cea1f59 conn: New Metrics listener port
If MetricsPort is defined, listen on it and handle the incoming request.

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-10-27 10:43:42 -04:00
Nick Mathewson
47d6eef190 Also, include ed25519 identities in connection_describe().
Related to #22668.
2020-10-15 10:53:45 -04:00
Nick Mathewson
701a1936fa Merge branch 'maint-0.3.5' into maint-0.4.3 2020-10-07 08:26:04 -04:00
Nick Mathewson
ad7ffa5240 Merge remote-tracking branch 'tor-gitlab/mr/79' into maint-0.3.5 2020-10-07 08:25:55 -04:00
Nick Mathewson
8505dd5e37 Merge branch 'maint-0.4.3' into maint-0.4.4 2020-10-07 08:08:02 -04:00
Nick Mathewson
9029444482 Merge branch 'maint-0.3.5' into maint-0.4.3 2020-10-07 08:08:01 -04:00
Alexander Færøy
ad08743299 Rename OUTBOUND_ADDR_EXIT_AND_OR to OUTBOUND_ADDR_ANY.
This patch renames the enumeration value in `outbound_addr_t` from
`OUTBOUND_ADDR_EXIT_AND_OR` to `OUTBOUND_ADDR_ANY` since with the
arrival of `OUTBOUND_ADDR_PT` it no longer makes sense to call the
fallback value for "Exit and OR". Instead we rename it to "any".

See: https://bugs.torproject.org/5304
2020-10-06 09:30:10 -04:00
Alexander Færøy
485990641b Merge remote-tracking branch 'tor-gitlab/mr/137' 2020-09-18 14:51:54 +00:00
David Goulet
ea339227c2 conn: Remove assert on new listener connection when retrying
Opening a new listener connection can fail in many ways like a bind()
permission denied on a low port for instance.

And thus, we should expect to handle an error when creating a new one instead
of assert() on it.

To hit the removed assert:

  ORPort 80
  KeepBindCapabilities 0

Start tor. Then edit torrc:

  ORPort <some-IP>:80

HUP tor and the assert is hit.

Fixes #40073

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-09-01 10:01:21 -04:00
George Kadianakis
cc4e42ee32 Merge remote-tracking branch 'tor-gitlab/mr/115' 2020-08-25 15:43:00 +03:00
George Kadianakis
b705cfa024 Merge remote-tracking branch 'tor-gitlab/mr/111' 2020-08-11 15:12:43 +03:00
George Kadianakis
b8003fbe99 Merge branch 'maint-0.4.4' 2020-08-11 14:54:26 +03:00
George Kadianakis
ab9c35f043 Merge remote-tracking branch 'tor-gitlab/mr/102' into maint-0.4.4 2020-08-11 14:53:03 +03:00
Nick Mathewson
24c721de37 Log number of inbound/outbound ipv4/6 conns as part of heartbeat
Closes #29113
2020-08-07 10:45:29 -04:00
Nick Mathewson
b417594dbc Replace several C identifiers for ticket 18106.
We used to have a single boolean, "FascistFirewall".  Ages ago, in
tickets #17840 and #9067, we added an improved "ReachableAddresses"
mechanism.  It's time to rename related identifiers in the code for
consistency.  This closes #18106.

This is an automated commit, generated by this command:

./scripts/maint/rename_c_identifier.py \
        fascist_firewall_allows_address reachable_addr_allows \
        fascist_firewall_use_ipv6 reachable_addr_use_ipv6 \
        fascist_firewall_prefer_ipv6_impl reachable_addr_prefer_ipv6_impl \
        fascist_firewall_prefer_ipv6_orport reachable_addr_prefer_ipv6_orport \
        fascist_firewall_prefer_ipv6_dirport reachable_addr_prefer_ipv6_dirport \
        fascist_firewall_allows_address_addr reachable_addr_allows_addr \
        fascist_firewall_allows_address_ap reachable_addr_allows_ap \
        fascist_firewall_allows_base reachable_addr_allows_base \
        fascist_firewall_allows_ri_impl reachable_addr_allows_ri_impl \
        fascist_firewall_allows_rs_impl reachable_addr_allows_rs_impl \
        fascist_firewall_allows_rs reachable_addr_allows_rs \
        fascist_firewall_allows_md_impl reachable_addr_allows_md_impl \
        fascist_firewall_allows_node reachable_addr_allows_node \
        fascist_firewall_allows_dir_server reachable_addr_allows_dir_server \
        fascist_firewall_choose_address_impl reachable_addr_choose_impl \
        fascist_firewall_choose_address reachable_addr_choose \
        fascist_firewall_choose_address_base reachable_addr_choose_base \
        fascist_firewall_choose_address_rs reachable_addr_choose_from_rs \
        fascist_firewall_choose_address_ls reachable_addr_choose_from_ls \
        fascist_firewall_choose_address_node reachable_addr_choose_from_node \
        fascist_firewall_choose_address_dir_server reachable_addr_choose_from_dir_server
2020-08-05 16:34:45 -04:00
Nick Mathewson
ea876ab00e Wipe address strings from connections before freeing them them.
This is a defense-in-depth fix; closes 6198.
2020-08-03 10:15:08 -04:00
George Kadianakis
e069b0af4b Merge branch 'maint-0.4.4' 2020-08-03 16:49:05 +03:00
George Kadianakis
18d2c7c5d7 Merge remote-tracking branch 'tor-gitlab/mr/79' into maint-0.4.4 2020-08-03 16:48:52 +03:00
Alexander Færøy
109063185b Merge branch 'tor-gitlab/mr/73_squashed' 2020-07-29 13:34:24 +00:00
Nick Mathewson
3cb9a9b8ce Remove the connection_t.outbuf_flushlen field
This was once used for rate-limiting, but now it's only for
accounting.  It hasn't served a useful purpose in a long time.

Closes ticket 33097.
2020-07-29 13:33:35 +00:00
Nick Mathewson
ceb6585a4b Treat all extorport connections with un-set addresses as remote
Without this fix, if an PT forgets to send a USERADDR command, that
results in a connection getting treated as local for the purposes of
rate-limiting.

If the PT _does_ use USERADDR, we still believe it.

Closes ticket 33747.
2020-07-22 15:21:56 -04:00
Nick Mathewson
088100d698 Rename router_get_advertised_*() functions.
These now (or_port and dir_port) now have "find" names, since they
look at the portcfg first, then at the actual ports from the
listeners.

This is an automated commit, generated by this command:

./scripts/maint/rename_c_identifier.py \
        router_get_advertised_or_port routerconf_find_or_port \
        router_get_advertised_ipv6_or_ap routerconf_find_ipv6_or_ap \
        router_has_advertised_ipv6_orport routerconf_has_ipv6_orport \
        router_get_advertised_dir_port routerconf_find_dir_port
2020-07-21 12:59:03 -04:00
Nick Mathewson
f478080bd0 Combine router_get_advertised_or_port{,by_af_}() functions 2020-07-21 12:47:33 -04:00
Nick Mathewson
7b3bd45cfe or_connection_t: replace real_addr with canonical_orport.
Instead of replacing connection_t.{addr,port} with a canonical
orport, and tracking the truth in real_addr, we now leave
connection_t.addr alone, and put the canonical address in
canonical_orport.

Closes #40042

Closes #33898
2020-07-17 11:42:49 -04:00
Nick Mathewson
7ebfa607b2 Use CONST_TO_* macros in more places.
This is an automated commit made with a python script.

After running the automated script, I had to hand-revert the cases where it
made the conversion functions call themselves.

Additionally, I had to edit a variable declaration in control_bootstrap.c so
that the result of a const cast could be put in a const field.
2020-07-16 12:55:06 -04:00