dynamic modules: port Rust sdk to Golang to match envoy ABI capabilities

source/extensions/dynamic_modules/BUILD

@@ -49,35 +49,102 @@ envoy_cc_library(
     alwayslink = True,
 )
 
+# A meta-target that aggregates every per-surface abi_impl-style C++ library that
+# implements the `envoy_dynamic_module_callback_*` host callbacks.
+#
+# The Go SDK's `abi/*.go` package is monolithic — importing it pulls in references to
+# every surface's callbacks. So a Go test_data .so always references all of them. Tests
+# that load such .so files must provide all of those symbols in the test binary's
+# symbol table; otherwise dlopen's RTLD_LAZY can't resolve them and load fails. This
+# meta-target lets a test depend on a single line and get every callback the Go SDK
+# may have referenced.
+envoy_cc_library(
+    name = "all_abi_impls",
+    deps = [
+        ":abi_impl",
+        "//source/extensions/access_loggers/dynamic_modules:access_log_lib",
+        "//source/extensions/bootstrap/dynamic_modules:abi_impl",
+        "//source/extensions/clusters/dynamic_modules:cluster_lib",
+        "//source/extensions/filters/http/dynamic_modules:abi_impl",
+        "//source/extensions/filters/http/dynamic_modules:filter_lib",
+        "//source/extensions/filters/listener/dynamic_modules:filter_lib",
+        "//source/extensions/filters/network/dynamic_modules:filter_lib",
+        "//source/extensions/filters/udp/dynamic_modules:filter_lib",
+        "//source/extensions/load_balancing_policies/dynamic_modules:abi_impl",
+        "//source/extensions/matching/input_matchers/dynamic_modules:matcher_lib",
+        "//source/extensions/tracers/dynamic_modules:abi_impl",
+        "//source/extensions/transport_sockets/tls/cert_validator/dynamic_modules:config",
+        "//source/extensions/upstreams/http/dynamic_modules:abi_impl",
+    ],
+    alwayslink = True,
+)
+
+# The shared package is pure Go (no cgo) — interfaces, types, and EmptyXxx no-ops shared
+# across the SDK and module code. Modules depend on this transitively via go_sdk and
+# go_sdk_abi.
 go_library(
     name = "go_sdk_shared",
     srcs = [
-        "sdk/go/shared/api.go",
-        "sdk/go/shared/base.go",
+        "sdk/go/shared/access_log.go",
+        "sdk/go/shared/bootstrap.go",
+        "sdk/go/shared/cert_validator.go",
+        "sdk/go/shared/cluster.go",
+        "sdk/go/shared/dns_resolver.go",
+        "sdk/go/shared/http.go",
+        "sdk/go/shared/listener_api.go",
+        "sdk/go/shared/listener_base.go",
+        "sdk/go/shared/load_balancer.go",
+        "sdk/go/shared/matcher.go",
         "sdk/go/shared/network_api.go",
         "sdk/go/shared/network_base.go",
+        "sdk/go/shared/program.go",
+        "sdk/go/shared/tracer.go",
+        "sdk/go/shared/transport_socket.go",
+        "sdk/go/shared/types.go",
+        "sdk/go/shared/udp_listener_api.go",
+        "sdk/go/shared/udp_listener_base.go",
+        "sdk/go/shared/upstream_http_tcp_bridge.go",
     ],
-    cgo = True,
     importpath = "github.com/envoyproxy/envoy/source/extensions/dynamic_modules/sdk/go/shared",
     visibility = ["//visibility:public"],
 )
 
+# The top-level sdk package — pure Go. Holds the factory registries and program-handle
+# indirection. Imports shared.
 go_library(
     name = "go_sdk",
     srcs = ["sdk/go/sdk.go"],
-    cgo = True,
     importpath = "github.com/envoyproxy/envoy/source/extensions/dynamic_modules/sdk/go",
     visibility = ["//visibility:public"],
     deps = [
         "//source/extensions/dynamic_modules:go_sdk_shared",
     ],
 )
 
+# The abi package — cgo-heavy. Implements the C-callable trampolines that Envoy invokes
+# and the Go-callable wrappers that bridge into Envoy's host callbacks.
 go_library(
     name = "go_sdk_abi",
     srcs = [
-        "sdk/go/abi/internal.go",
+        "sdk/go/abi/access_log.go",
+        "sdk/go/abi/bootstrap.go",
+        # Stand-alone .c file that defines C trampolines passed by address from
+        # Go to Envoy. Cannot live in the cgo preamble; see file header for why.
+        "sdk/go/abi/bootstrap_trampolines.c",
+        "sdk/go/abi/cert_validator.go",
+        "sdk/go/abi/cluster.go",
+        "sdk/go/abi/dns_resolver.go",
+        "sdk/go/abi/http.go",
+        "sdk/go/abi/listener.go",
+        "sdk/go/abi/load_balancer.go",
+        "sdk/go/abi/matcher.go",
         "sdk/go/abi/network.go",
+        "sdk/go/abi/program.go",
+        "sdk/go/abi/scheduler.go",
+        "sdk/go/abi/tracer.go",
+        "sdk/go/abi/transport_socket.go",
+        "sdk/go/abi/udp_listener.go",
+        "sdk/go/abi/upstream_http_tcp_bridge.go",
         "//source/extensions/dynamic_modules/abi:abi.h",
     ],
     cgo = True,

source/extensions/dynamic_modules/builtin_extensions/hickory_dns.rs

@@ -116,7 +116,7 @@ fn parse_proto_duration(s: &str) -> Option<std::time::Duration> {
   if let Some(stripped) = s.strip_suffix('s') {
     if let Some((whole, frac)) = stripped.split_once('.') {
       let secs: u64 = whole.parse().ok()?;
-      let nanos: u32 = format!("{:0<9}", frac)[..9].parse().ok()?;
+      let nanos: u32 = format!("{frac:0<9}")[..9].parse().ok()?;
       Some(std::time::Duration::new(secs, nanos))
     } else {
       let secs: u64 = stripped.parse().ok()?;