[tor-commits] [tor/master] sendme: Add FlowCtrl protover value

[asn@xxxxxxxxxxxxxx]

commit 07e4b09b5f27326a1aa58b5b2ed3c25ceb5a6db6
Author: David Goulet <dgoulet@xxxxxxxxxxxxxx>
Date:   Fri May 3 13:24:06 2019 -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@xxxxxxxxxxxxxx>
---
 src/core/or/protover.c        | 6 ++++--
 src/core/or/protover.h        | 1 +
 src/rust/protover/ffi.rs      | 1 +
 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
index 1edf78ec8..e12919f0a 100644
--- 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
index 567b94a16..d8e541735 100644
--- 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
index 066b08edd..14170d035 100644
--- 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
index 74158d9f6..f7d9d6d15 100644
--- 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"
         )
     }
 }



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