Commit Graph

122 Commits

Author SHA1 Message Date
Nick Mathewson b4f28b9df8 pubsub: install libevent events separately from the_dispatcher.
Also, add documentation, and fix a free-on-error bug.
2019-03-25 16:35:34 -04:00
Nick Mathewson 6d1abd37e2 Connect the mainloop pubsub dispatcher on startup; free it on shutdown. 2019-03-25 16:35:33 -04:00
Nick Mathewson bdeaf7d4b2 Code to manage publish/subscribe setup via subsystem interface.
This commit has the necessary logic to run the publish/subscribe
system from the mainloop, and to initialize it on startup and tear
it down later.
2019-03-25 16:35:33 -04:00
Nick Mathewson b169c8c14f Merge remote-tracking branch 'asn-github/adaptive_padding-final' 2019-01-14 14:48:00 -05:00
Nick Mathewson e6a4401200 Merge branch 'maint-0.3.5' 2019-01-09 08:52:10 -05:00
Kris Katterjohn c13a81f7f9 Fix (and make consistent) the use of OpenBSD preprocessor macro tests
Prior to this commit, the testsuite was failing on OpenBSD.  After
this commit the testsuite runs fine on OpenBSD.

It was previously decided to test for the OpenBSD macro (rather than
__OpenBSD__, etc.) because OpenBSD forks seem to have the former
macro defined.  sys/param.h must be included for the OpenBSD macro
definition; however, many files tested for the OpenBSD macro without
having this header included.

This commit includes sys/param.h in the files where the OpenBSD macro
is used (and sys/param.h is not already included), and it also
changes some instances of the __OpenBSD__ macro to OpenBSD.

See commit 27df23abb6 which changed
everything to use OpenBSD instead of __OpenBSD__ or OPENBSD.  See
also tickets #6982 and #20980 (the latter ticket is where it was
decided to use the OpenBSD macro).

Signed-off-by: Kris Katterjohn <katterjohn@gmail.com>
2019-01-09 08:51:57 -05:00
Mike Perry 8ad497bb57 Config option to specify specific MiddleNodes.
Hope is this will make it easier to test on the live tor network.

Does not need to be merged if we don't want to, but will come in handy
for researchers.

Co-authored-by: George Kadianakis <desnacked@riseup.net>
2019-01-02 15:25:55 +02:00
Mike Perry 70e9245f6f Initialize circuit padding machines and global state.
Co-authored-by: George Kadianakis <desnacked@riseup.net>
2019-01-02 15:12:13 +02:00
Nick Mathewson 70dd6d07bb Merge branch 'orconn-tracker_squashed' 2018-12-21 14:22:11 -05:00
Nick Mathewson fd58e5e498 Fix priority on process subsystem level: it uses "net" 2018-12-21 14:12:20 -05:00
Alexander Færøy cf4b3dbd44 Use the subsystem list to initialize and shutdown process module.
This patch makes the process module use the subsystem list for
initializing and shutting down.

See: https://bugs.torproject.org/28847
2018-12-21 13:26:38 -05:00
Taylor Yu b0ae6a332a Add bootstrap tracker subsystem
Add a tracker for bootstrap progress, tracking events related to
origin circuit and ORCONN states.  This uses the ocirc_event and
orconn_event publish-subscribe subsystems.

Part of ticket 27167.
2018-12-20 18:46:17 -06:00
Taylor Yu a0b4fa1f16 Add origin circuit event pubsub system
Add a publish-subscribe subsystem to publish messages about changes to
origin circuits.

Functions in circuitbuild.c and circuitlist.c publish messages to this
subsystem.

Move circuit event constants out of control.h so that subscribers
don't have to include all of control.h to take actions based on
messages they receive.

Part of ticket 27167.
2018-12-20 18:46:17 -06:00
Taylor Yu 271b50f54a Add ORCONN event pubsub system
Add a publish-subscribe subsystem to publish messages about changes to
OR connections.

connection_or_change_state() in connection_or.c and
control_event_or_conn_event() in control.c publish messages to this
subsystem via helper functions.

Move state constants from connection_or.h to orconn_state.h so that
subscribers don't have to include all of connection_or.h to take
actions based on changes in OR connection state.  Move event constants
from control.h for similar reasons.

Part of ticket 27167.
2018-12-20 18:46:17 -06:00
Alexander Færøy 01819faaba Remove Process initializer/shutdown function from main.c.
See: https://bugs.torproject.org/28847
2018-12-20 14:36:59 +01:00
Nick Mathewson 372df7a630 Merge branch 'maint-0.3.5' 2018-12-18 13:56:22 -05:00
Nick Mathewson 26bbeb298d Merge branch 'bug28612_squashed' into maint-0.3.5 2018-12-18 13:55:57 -05:00
Nick Mathewson 1c2abea30a Call run_tor_main_loop() in ntmain.c, rather than do_main_loop().
Fixes bug 28612; bugfix on 0.3.5.3-alpha.
2018-12-18 13:55:08 -05:00
Nick Mathewson 0af0f78dff Merge branch 'maint-0.3.5' 2018-12-18 13:52:39 -05:00
Nick Mathewson 4894d44ab8 Always initialize addr in parse_port_config()
It was always analyzed before use, but scan-build wasn't able to
persuade itself of that.

Closes ticket 28881.
2018-12-18 13:52:25 -05:00
Nick Mathewson a3e6f2467b Merge remote-tracking branch 'tor-github/pr/595' 2018-12-18 13:51:21 -05:00
Nick Mathewson e969d9c6b4 Merge branch 'ticket28179_squashed' into ticket28179_squashed_merged 2018-12-17 16:41:01 -05:00
Alexander Færøy ccc1963890 Move remaining code from subprocess.{h,c} to more appropriate places.
This patch moves the remaining code from subprocess.{h,c} to more
appropriate places in the process.c and process_win32.c module.

We also delete the now empty subprocess module files.

See: https://bugs.torproject.org/28179
2018-12-17 16:39:28 -05:00
Alexander Færøy 35509978dd Add new Process subsystem.
This patch adds a new Process subsystem for running external programs in
the background of Tor. The design is focused around a new type named
`process_t` which have an API that allows the developer to easily write
code that interacts with the given child process. These interactions
includes:

- Easy API for writing output to the child process's standard input
  handle.
- Receive callbacks whenever the child has output on either its standard
  output or standard error handles.
- Receive callback when the child process terminates.

We also support two different "protocols" for handling output from the
child process. The default protocol is the "line" protocol where the
process output callbacks will be invoked only when there is complete
lines (either "\r\n" or "\n" terminated). We also support the "raw"
protocol where the read callbacks will get whatever the operating system
delivered to us in a single read operation.

This patch does not include any operating system backends, but the Unix
and Windows backends will be included in separate commits.

See: https://bugs.torproject.org/28179
2018-12-17 16:39:28 -05:00
Rob Jansen 325348b360 allow any value for HearbeatPeriod in testing Tor networks 2018-12-14 09:22:23 -05:00
Nick Mathewson 69264f96f3 Merge branch 'dormant_persist_squashed' 2018-12-13 08:26:10 -05:00
Nick Mathewson e1273d7d1b Merge branch 'maint-0.3.4' into maint-0.3.5 2018-12-11 09:41:05 -05:00
Nick Mathewson 27e4269929 Merge branch 'maint-0.3.5' 2018-12-11 09:41:05 -05:00
Nick Mathewson ca4b86f90a Merge remote-tracking branch 'tor-github/pr/508' 2018-12-05 08:19:02 -05:00
Nick Mathewson 4f55884315 Add an option to start tor in dormant mode for the first time. 2018-12-04 12:08:24 -05:00
Nick Mathewson b25b8150c2 Remember in our state file how long we've spent since user activity
Rather than initializing the "Dormant" status to "off" and the "last
activity" count to "now", initialize them based on our state file:
stay dormant if we were dormant, or remember the amount of time
we've spent inactive.
2018-12-04 11:59:11 -05:00
Nick Mathewson 2b2b97484a Merge branch 'ticket27490a_squashed' 2018-12-01 20:32:18 -05:00
Neel Chauhan 822cb93cab Add new option ClientAutoIPv6ORPort to switch between IPv4 and IPv6 OR ports 2018-12-01 14:55:57 -05:00
Nick Mathewson 701eaef980 Move net.inet.ip.random_id code to lib/net/ 2018-12-01 11:36:03 -05:00
Nick Mathewson d4d4a4b2dd Merge remote-tracking branch 'tor-github/pr/527' 2018-12-01 11:30:53 -05:00
Nick Mathewson 3743f79695 Add options to control dormant-client feature.
The DormantClientTimeout option controls how long Tor will wait before
going dormant.  It also provides a way to disable the feature by setting
DormantClientTimeout to e.g. "50 years".

The DormantTimeoutDisabledByIdleStreams option controls whether open but
inactive streams count as "client activity".  To implement it, I had to
make it so that reading or writing on a client stream *always* counts as
activity.

Closes ticket 28429.
2018-11-26 16:32:40 -05:00
Fabian Keil 71651ea4aa Complain if net.inet.ip.random_id is not set on FreeBSD-based servers
Apparently a couple of operators haven't gotten the memos [0] yet
and it looks like FreeBSD's default value will not change any time
soon [1].

[0]:
https://lists.torproject.org/pipermail/tor-relays/2014-March/004199.html
https://lists.torproject.org/pipermail/tor-relays/2014-November/005687.html
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195828

[1]:
https://lists.freebsd.org/pipermail/freebsd-net/2015-April/041942.html
2018-11-19 16:28:00 +01:00
Nick Mathewson 2c15b65381 Make the NET_PARTICIPANT role dependent on user activity
This patch implements all of 28337, except for the part where we
turn off the role if we've been idle for a long time.
2018-11-15 11:17:22 -05:00
Nick Mathewson 4bf79fa4fa Turn second_elapsed_callback into a normal periodic event. 2018-11-15 11:17:22 -05:00
Nick Mathewson e420154ce7 Add an include to main.c 2018-11-14 16:07:36 -05:00
Nick Mathewson c0a7527eb8 Remove dependency on lib/net from lib/sandbox.
This was trivial, and the easiest way to remove the remaining
.may_include circularities.
2018-11-14 16:07:03 -05:00
Nick Mathewson f6b8c7da66 Move buffers.c out of lib/containers to resolve a circularity. 2018-11-14 16:07:03 -05:00
Nick Mathewson 91355c0fac Annotate subsystem list with their levels. 2018-11-09 22:17:18 -05:00
Nick Mathewson bf4f55a13d Merge branch 'subsystems' 2018-11-09 15:01:49 -05:00
Nick Mathewson 60d1081236 Log before performing a subsystem operation 2018-11-09 11:56:26 -05:00
Nick Mathewson ba722e4799 Add list of levels in subsystem_list.c 2018-11-09 11:15:27 -05:00
Nick Mathewson 9807da9c20 Merge branch 'ticket27225_squashed' 2018-11-07 10:47:29 -05:00
Nick Mathewson 6d93820499 Memoize summarize_protover_flags()
Our tests showed that this function is responsible for a huge number
of our malloc/free() calls.  It's a prime candidate for being
memoized.

Closes ticket 27225.
2018-11-07 10:47:07 -05:00
Nick Mathewson 8a5590ebac Merge remote-tracking branch 'tor-github/pr/484' into maint-0.3.5 2018-11-06 15:19:04 -05:00
Nick Mathewson 32b23a4c40 Make tortls use the subsystems interface
This one only needs a shutdown right now.
2018-11-05 09:22:02 -05:00