Commit Graph

35408 Commits

Author SHA1 Message Date
David Goulet 445df9e7b5 relay: New file relay_resolve_addr.{c|h}
This commit moves router_pick_published_address() and the related helper
functions into the new file.

The log_addr_has_changed() function has been made public in router.h so we can
use it in relay_resolve_addr.c.

This is a refactoring as part of Sponsor 55. Only code movement at this
commit.

Part of #33789

Signed-off-by: David Goulet <dgoulet@torproject.org>
2020-05-05 14:24:04 -04:00
teor 6dc9930d3a Merge branch 'pr1870_squashed' 2020-04-30 22:22:09 +10:00
Neel Chauhan 7bf257b129 Define and use TOR_ADDRPORT_BUF_LEN 2020-04-30 22:21:48 +10:00
teor efcae919ae practracker: Accept the connection buf refactor
Accept a few extra lines from the connection_buf_read_from_socket()
refactor.

Cleanup after 33131.
2020-04-30 13:55:26 +10:00
teor 3eca667ae4 relay: Fix a comment typo in the selftest.c header 2020-04-30 13:54:40 +10:00
Nick Mathewson 49800cf539 Merge remote-tracking branch 'tor-github/pr/1864/head' 2020-04-29 19:16:40 -04:00
teor ed4420b4b8 practracker: Allow an extra line in tor_addr_parse_mask_ports()
We added a cast, and wrapped a line.
2020-04-30 06:54:42 +10:00
teor 15a4180a7e relay: Refactor can extend over IPv6 checks
Split "can extend over IPv6" and "has advertised IPv6 ORPort" into
separate functions. They currently have the same result, but this may
change in 33818 with ExtendAllowIPv6Addresses.

Part of 33817.
2020-04-30 06:54:42 +10:00
teor 066d2deb3d channel: Refactor matches target address function
Refactor channel_matches_target_addr_for_extend() to return a boolean
result.

Part of 33817.
2020-04-30 06:54:42 +10:00
teor 496ddd2877 relay: Refactor extend address validity function
Rename the function, and give it a boolean return value.

No behaviour change.

Part of 33817.
2020-04-30 06:54:42 +10:00
teor cd7e2fc210 net: Make all address bytes functions take uint8_t *
Part of 33817.
2020-04-30 06:54:42 +10:00
teor f62b051e87 Rename tor_addr_get_ipv6_bytes to tor_addr_copy_ipv6_bytes
This is an automated commit, generated by this command:

./scripts/maint/rename_c_identifier.py \
        tor_addr_get_ipv6_bytes tor_addr_copy_ipv6_bytes
2020-04-30 05:54:39 +10:00
teor 528a1fe985 changes: file for 33817 2020-04-29 22:43:09 +10:00
teor bcec1ec071 relay: Refactor choosing extend IPs
Flatten the logic in circuit_choose_ip_ap_for_extend().

Part of 33817.
2020-04-29 22:43:09 +10:00
teor df5ea29775 relay: Add tests for choosing extend IPs
Part of 33817.
2020-04-29 22:43:09 +10:00
teor 9a6186c267 relay: Refactor circuit_open_connection_for_extend()
Refactor circuit_open_connection_for_extend(), splitting out the IP
address choice code into a new function.

Adds unit tests. No behaviour changes in tor.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor cab05a84cd relay: Add IP version tests for circuit extends
Add IPv4-only and IPv6-only tests for
circuit_open_connection_for_extend().

Part of 33817.
2020-04-29 22:43:09 +10:00
teor c3e058dfac relay: Choose between IPv4 and IPv6 extends at random
When an EXTEND2 cell has an IPv4 and an IPv6 address, choose one of them
uniformly at random.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor a0b12f3cd4 relay/circuitbuild: Refactor open connection for extend
Re-use the newly created extend_info to launch the connection in
circuit_open_connection_for_extend().

No behaviour change.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor 063505446f test/circuitbuild: Disable some tests when ALL_BUGS_ARE_FATAL
Some tests use IF_BUG_ONCE(), which is fatal when ALL_BUGS_ARE_FATAL,
after the fixes in 33917.

Also run "make autostyle" on these changes.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor 6c458d2d6e log/util_bug: Make IF_BUG_ONCE() support ALL_BUGS_ARE_FATAL
... and DISABLE_ASSERTS_IN_UNIT_TESTS.

Make all of tor's assertion macros support the ALL_BUGS_ARE_FATAL and
DISABLE_ASSERTS_IN_UNIT_TESTS debugging modes.

Implements these modes for IF_BUG_ONCE(). (It used to log a non-fatal
warning, regardless of the debugging mode.)

Fixes bug 33917; bugfix on 0.2.9.1-alpha.
2020-04-29 22:43:09 +10:00
teor 16f3f6a1af relay/circuitbuild: Re-use IPv6 connections for circuits
Search for existing connections using the remote IPv4 and IPv6
addresses.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor ec5f4f3c5a relay/circuitbuild: Report IPv6 addresses in a debug log
Part of 33817.
2020-04-29 22:43:09 +10:00
teor f8f688b309 channel: Make channel_matches_target_addr_for_extend() static
It isn't used outside channel.c.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor bad1181b5d relay/circuitbuild: Consider IPv6-only extends valid
Allow extend cells with IPv6-only link specifiers.
Warn and fail if both IPv4 and IPv6 are invalid.

Also warn if the IPv4 or IPv6 addresses are unexpectedly internal,
but continue with the valid address.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor 7cef02ec1f test/circuitbuild: Show bad addresses in some logs
Disable SafeLogging for some extend tests, so we can check the actual
addresses.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor 44f71e08c4 relay: Log the address in circuit protocol warnings
Always log the address family in extend protocol warnings.

If SafeLogging is 0, also log the address and port.

Diagnostics for 33817.
2020-04-29 22:43:09 +10:00
teor a72e017e7f net: Add fmt_addrport_ap() and fmt_addr_family()
Add fmt_addrport_ap(), a macro that takes a tor_addr_port_t, and uses
it to call fmt_addrport().

Add fmt_addr_family(), a function that returns a string constant
describing the address family.

Utility functions for 33817.
2020-04-29 22:43:09 +10:00
teor e9d04b05c6 net: Remove an extra space in address.h 2020-04-29 22:43:09 +10:00
teor ffc2fd001a relay: Refactor address checks into a function
No behaviour change.

Part of 33817.
2020-04-29 22:43:09 +10:00
teor 07c008c672 relay: Refactor address and port checks
tor_addr_port_is_valid_ap(ap, 0) checks if the address or port are
zero, exactly like the previous code.

Preparation for 33817.
2020-04-29 22:43:09 +10:00
teor 587a7fbcf6 core/or: Check extends for zero addresses and ports
Check for invalid zero IPv4 addresses and ports, when sending and
receiving extend cells.

Fixes bug 33900; bugfix on 0.2.4.8-alpha.
2020-04-29 22:43:09 +10:00
teor f6c8a8c538 test/cell_formats: Expand the IPv6-only EXTEND2 test
Part of 33901.
2020-04-29 22:43:09 +10:00
teor bd6ab90ad4 core/or: Support IPv6 EXTEND2 cells
Allow clients and relays to send dual-stack and IPv6-only EXTEND2 cells.
Parse dual-stack and IPv6-only EXTEND2 cells on relays.

Relays do not make connections or extend circuits via IPv6: that's the
next step.

Closes ticket 33901.
2020-04-29 22:43:09 +10:00
Nick Mathewson cbe9e56590 Merge remote-tracking branch 'tor-github/pr/1868/head' 2020-04-29 08:32:44 -04:00
teor 3253c357ee Run "make autostyle" 2020-04-29 22:08:33 +10:00
teor 6eec43161a rand: Clarify the crypto_rand_uint() range 2020-04-29 21:50:37 +10:00
teor 398e0e0247 nodelist: Remove an outdated comment
Part of 33817.
2020-04-29 21:50:26 +10:00
teor 7517e1b5d3 channeltls: Clarify a relay impersonation defence
Clarify the comments in channel_tls_matches_target_method(), and make
it clear that the attack is a covert attack.
2020-04-28 21:11:10 +10:00
Nick Mathewson 4dd4dbf046 Merge remote-tracking branch 'onionk/inbufoverflow1-043' into ticket33131_044 2020-04-24 08:15:53 -04:00
Nick Mathewson 7f9eaec538 Merge remote-tracking branch 'tor-github/pr/1862/head' 2020-04-24 08:14:59 -04:00
Nick Mathewson b2849f449b Merge branch 'maint-0.4.3' 2020-04-21 12:22:37 -04:00
teor 42507429ce channeltls: Stop truncating IPv6 in logs
Stop truncating IPv6 addresses and ports in channel and connection logs.

Fixes bug 33918; bugfix on 0.2.4.4-alpha.
2020-04-21 12:22:30 -04:00
teor e3b1e617ae test/channel: Fix a comment typo 2020-04-15 19:45:56 +10:00
Nick Mathewson 77e65076ab Merge remote-tracking branch 'tor-github/pr/1860/head' 2020-04-14 11:52:00 -04:00
teor f5c34d340d Run practracker regen
Lock-in improvements.
Accept some small function size increases.
Allow a small amount of extra file size increase.
2020-04-14 15:42:52 +10:00
teor a2daca594b core/or: Update file comment in connection_or.c
Fix a typo, and say "v3 (and later) handshake".

Comment-only change.
2020-04-14 14:55:37 +10:00
teor 8c55d34e0a core/or: Accurately log remote relay IPv6 addresses
Log IPv6 addresses on connections where this relay is the responder.

Previously, responding relays would replace the remote IPv6 address with
the IPv4 address from the consensus.

(The port is replaced with the IPv6 ORPort from the consensus, we will
resolve this issue in 33898.)

Fixes bug 33899; bugfix on 0.3.1.1-alpha.
2020-04-14 12:21:49 +10:00
teor 41fa07f751 core/or: Allow IPv6 connections to be canonical
Consider IPv6 addresses when checking if a connection is canonical.

In 17604, relays assumed that a remote relay could consider an IPv6
connection canonical, but did not set the canonical flag on their side
of the connection.

Fixes bug 33899; bugfix on 0.3.1.1-alpha.
2020-04-14 12:16:48 +10:00
teor ab8ff32bec core/or: Remove unused function prototype
Remove the unused function prototype for connection_or_get_for_extend().

There is no function implementation.

Part of 33817.
2020-04-14 10:37:20 +10:00