http2: asymetric sizes for headers tables

The headers table from client to server
and the one from server to client
may have different maximum sizes
(even if both endpoints have to keep both tables)

rust/src/http2/http2.rs

@@ -466,17 +466,19 @@ impl HTTP2State {
                     Ok((_, set)) => {
                         for i in 0..set.len() {
                             if set[i].id == parser::HTTP2SettingsId::SETTINGSHEADERTABLESIZE {
-                                //set for both endpoints ? to be tested
-                                self.dynamic_headers_tc.max_size = set[i].value as usize;
-                                self.dynamic_headers_ts.max_size = set[i].value as usize;
+                                //reverse order as this is what we accept from the other endpoint
+                                let dyn_headers = if dir == STREAM_TOCLIENT {
+                                    &mut self.dynamic_headers_ts
+                                } else {
+                                    &mut self.dynamic_headers_tc
+                                };
+                                dyn_headers.max_size = set[i].value as usize;
                                 if set[i].value > HTTP2_MAX_TABLESIZE {
                                     //mark potential overflow
-                                    self.dynamic_headers_tc.overflow = 1;
-                                    self.dynamic_headers_ts.overflow = 1;
+                                    dyn_headers.overflow = 1;
                                 } else {
                                     //reset in case peer set a lower value, to be tested
-                                    self.dynamic_headers_tc.overflow = 0;
-                                    self.dynamic_headers_ts.overflow = 0;
+                                    dyn_headers.overflow = 0;
                                 }
                             }
                         }