NOTE: This commit breaks the build, because there was a mistake in an
earlier change of exactly the sort that this is meant to detect! I'm
leaving it broken for illustration.
In file included from ./src/core/or/or_circuit_st.h:12:0,
from src/core/or/circuitlist.c:112:
./src/core/or/circuit_st.h:15:39: error: redefinition of typedef ‘circpad_machine_spec_t’
./src/core/or/circuitpadding.h:572:3: note: previous declaration of ‘circpad_machine_spec_t’ was here
./src/core/or/circuit_st.h:16:40: error: redefinition of typedef ‘circpad_machine_state_t’
./src/core/or/circuitpadding.h:517:3: note: previous declaration of ‘circpad_machine_state_t’ was here
In file included from src/core/or/connection_edge.c:70:0:
./src/core/or/circuitpadding.h:16:26: error: redefinition of typedef ‘circuit_t’
./src/core/or/or.h:930:26: note: previous declaration of ‘circuit_t’ was here
./src/core/or/circuitpadding.h:17:33: error: redefinition of typedef ‘origin_circuit_t’
./src/core/or/or.h:931:33: note: previous declaration of ‘origin_circuit_t’ was here
./src/core/or/circuitpadding.h:18:23: error: redefinition of typedef ‘cell_t’
./src/core/or/or.h:628:23: note: previous declaration of ‘cell_t’ was here
typedef doesn't work for forward declarations, but plain struct
without a typedef wrapper does (and unlike the _t type aliases makes
it clearer for everyone whether you're talking about the struct or
the pointer).
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>
This project introduces the prob_distr.c subsystem which implements all the
probability distributions that WTF-PAD needs. It also adds unittests for all of
them.
Code and tests courtesy of Riastradh.
Co-authored-by: Taylor R Campbell <campbell+tor@mumble.net>
Co-authored-by: Mike Perry <mikeperry-git@torproject.org>
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>
This implements all of the event handling, state machines, and padding
decisions for circuit padding.
I recommend reviewing this after you look at the call-in points into it from
the rest of Tor.
Co-authored-by: George Kadianakis <desnacked@riseup.net>
These callbacks allow the padding state machines to react to various types of
sent and received relay cells.
Co-authored-by: George Kadianakis <desnacked@riseup.net>
These event callbacks allow circuit padding to decide when to attempt to
launch and negotiate new padding machines, and when to tear old ones down.
Co-authored-by: George Kadianakis <desnacked@riseup.net>
This is a good code review start point, to get an overview of the interfaces
and types used in circuit padding.
Co-authored-by: George Kadianakis <desnacked@riseup.net>
Replace a few invocations of control_event_bootstrap() with calls from
the bootstrap tracker subsystem. This mostly leaves behavior
unchanged. The actual behavior changes come in the next commit.
Part of ticket 27167.
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.
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.
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.
connection_or_change_state() saved an old_state to pass to
channel_tls_handle_state_change_on_orconn(), which promptly cast it to
void. Remove this unused variable and parameter.
This patch changes the slow process_t tests to use
run_main_loop_until_done() instead of do_main_loop() since
do_main_loop() initializes a lot of subsystem callbacks that we don't
need to run in our tests.
See: https://bugs.torproject.org/28179
This patch makes the managed proxy subsystem use the process_t data
structure such that we can get events from the PT process while Tor is
running and not just when the PT process is being configured.
See: https://bugs.torproject.org/28179
The old implementation did some funky out-of-order lexing, and
tended to parse every port twice if the %d-%d pattern didn't match.
Closes ticket 28853.
