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[tor-commits] [torspec/master] Control-spec.txt: add several circuit purposes
commit a9fee222aca8bc921953cfe823d54b4a435adb70
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date: Wed Jun 17 12:02:58 2020 -0400
Control-spec.txt: add several circuit purposes
This patch adds and documents the purposes HS_VANGAURD,
PATH_BIAS_TESTING, and CIRCUIT_PADDING.
Closes ticket 33640.
---
control-spec.txt | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/control-spec.txt b/control-spec.txt
index 548edce..6a7a8bf 100644
--- a/control-spec.txt
+++ b/control-spec.txt
@@ -2134,7 +2134,9 @@
Purpose = "GENERAL" / "HS_CLIENT_INTRO" / "HS_CLIENT_REND" /
"HS_SERVICE_INTRO" / "HS_SERVICE_REND" / "TESTING" /
- "CONTROLLER" / "MEASURE_TIMEOUT"
+ "CONTROLLER" / "MEASURE_TIMEOUT" /
+ "HS_VANGUARDS" / "PATH_BIAS_TESTING" /
+ "CIRCUIT_PADDING"
HSState = "HSCI_CONNECTING" / "HSCI_INTRO_SENT" / "HSCI_DONE" /
"HSCR_CONNECTING" / "HSCR_ESTABLISHED_IDLE" /
@@ -2183,6 +2185,12 @@
TESTING (reachability-testing circuit; carries no traffic)
CONTROLLER (circuit built by a controller)
MEASURE_TIMEOUT (circuit being kept around to see how long it takes)
+ HS_VANGUARDS (circuit created ahead of time when using
+ HS vanguards, and later repurposed as needed)
+ PATH_BIAS_TESTING (circuit used to probe whether our circuits are
+ being deliberately closed by an attacker)
+ CIRCUIT_PADDING (circuit that is being held open to disguise its
+ true close time)
The "HS_STATE" field is provided only for hidden-service circuits,
and only in versions 0.2.3.11-alpha and later. Clients MUST accept
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