tor

commit 07e4b09b5f27326a1aa58b5b2ed3c25ceb5a6db6
parent 2aa441b88e089c9aa650f25dd1b109bf14bc451d
Author: David Goulet <dgoulet@torproject.org>
Date:   Fri,  3 May 2019 13:24:06 -0400

sendme: Add FlowCtrl protover value

See proposal 289 section 4.3 for more details.

It describes the flow control protocol at the circuit and stream level. If
there is no FlowCtrl protocol version, tor supports the unauthenticated flow
control features from its supported Relay protocols.

At this commit, relay will start advertising FlowCtrl=1 meaning they support
authenticated SENDMEs v1.

Closes #30363

Signed-off-by: David Goulet <dgoulet@torproject.org>

Diffstat:
M
src/core/or/protover.c
 | 
6
++++--
M
src/core/or/protover.h
 | 
1
+
M
src/rust/protover/ffi.rs
 | 
1
+
M
src/rust/protover/protover.rs
 | 
8
++++++--

4 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/src/core/or/protover.c b/src/core/or/protover.c
@@ -53,7 +53,8 @@ static const struct {
   { PRT_DESC, "Desc" },
   { PRT_MICRODESC, "Microdesc"},
   { PRT_PADDING, "Padding"},
-  { PRT_CONS, "Cons" }
+  { PRT_CONS, "Cons" },
+  { PRT_FLOWCTRL, "FlowCtrl"},
 };
 
 #define N_PROTOCOL_NAMES ARRAY_LENGTH(PROTOCOL_NAMES)
@@ -401,7 +402,8 @@ protover_get_supported_protocols(void)
 #endif
     "Microdesc=1-2 "
     "Relay=1-2 "
-    "Padding=1";
+    "Padding=1 "
+    "FlowCtrl=1";
 }
 
 /** The protocols from protover_get_supported_protocols(), as parsed into a
diff --git a/src/core/or/protover.h b/src/core/or/protover.h
@@ -44,6 +44,7 @@ typedef enum protocol_type_t {
   PRT_MICRODESC = 8,
   PRT_CONS      = 9,
   PRT_PADDING   = 10,
+  PRT_FLOWCTRL  = 11,
 } protocol_type_t;
 
 bool protover_contains_long_protocol_names(const char *s);
diff --git a/src/rust/protover/ffi.rs b/src/rust/protover/ffi.rs
@@ -31,6 +31,7 @@ fn translate_to_rust(c_proto: uint32_t) -> Result<Protocol, ProtoverError> {
         8 => Ok(Protocol::Microdesc),
         9 => Ok(Protocol::Cons),
         10 => Ok(Protocol::Padding),
+        11 => Ok(Protocol::FlowCtrl),
         _ => Err(ProtoverError::UnknownProtocol),
     }
 }
diff --git a/src/rust/protover/protover.rs b/src/rust/protover/protover.rs
@@ -47,6 +47,7 @@ pub enum Protocol {
     Microdesc,
     Relay,
     Padding,
+    FlowCtrl,
 }
 
 impl fmt::Display for Protocol {
@@ -75,6 +76,7 @@ impl FromStr for Protocol {
             "Microdesc" => Ok(Protocol::Microdesc),
             "Relay" => Ok(Protocol::Relay),
             "Padding" => Ok(Protocol::Padding),
+            "FlowCtrl" => Ok(Protocol::FlowCtrl),
             _ => Err(ProtoverError::UnknownProtocol),
         }
     }
@@ -166,7 +168,8 @@ pub(crate) fn get_supported_protocols_cstr() -> &'static CStr {
              LinkAuth=3 \
              Microdesc=1-2 \
              Relay=1-2 \
-             Padding=1"
+             Padding=1 \
+             FlowCtrl=1"
         )
     } else {
         cstr!(
@@ -180,7 +183,8 @@ pub(crate) fn get_supported_protocols_cstr() -> &'static CStr {
              LinkAuth=1,3 \
              Microdesc=1-2 \
              Relay=1-2 \
-             Padding=1"
+             Padding=1 \
+             FlowCtrl=1"
         )
     }
 }