Upgrade grpcio to 0.13.0

This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update rust/crates/grpcio
For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md

Test: TreeHugger
Change-Id: I9c3e5650701c9eced41ccd1a0ff85efb9c6f2664

20 files changed, 153 insertions, 60 deletions

diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
index 4f6a222..9db2389 100644
--- a/.cargo_vcs_info.json
+++ b/.cargo_vcs_info.json
@@ -1,5 +1,6 @@
 {
   "git": {
-    "sha1": "61a60923255fe618589bf03ece46fff097b8cb43"
-  }
-}
+    "sha1": "5442991f322901d28e318bac5736abe13a10794c"
+  },
+  "path_in_vcs": ""
+}
\ No newline at end of file
diff --git a/.clang-format b/.clang-format
index 7460950..608eea1 100644
--- a/.clang-format
+++ b/.clang-format
@@ -3,7 +3,44 @@ Language: Cpp
 BasedOnStyle: Google
 DerivePointerAlignment: false
 PointerAlignment: Left
-IncludeBlocks: Preserve
+IncludeBlocks: Regroup
+IncludeCategories:
+  # port_platform.h is before almost everything
+  - Regex: '^<grpc/(support|impl/codegen)/port_platform.h>'
+    Priority: -100
+  # ruby.h is even more first if it's included
+  - Regex: '^<ruby/ruby.h>'
+    Priority: -200
+  # Some platforms (namely msys) need wchar to be included BEFORE
+  # anything else, especially strsafe.h.
+  - Regex: '^<wchar.h>'
+    Priority: 5
+  # use priority 100+ for grpc headers so they sort last
+  # 'system' headers - include things that have " in the names to make them
+  # stand out and get fixed
+  - Regex: '^(<|")grpc'
+    Priority: 100
+  # similary using include/ to get system headers should stand out and get
+  # fixed
+  - Regex: '^"include/'
+    Priority: 100
+  # source headers go last
+  - Regex: '^"(src|test)/'
+    Priority: 101
+  # not-grpc headers follow
+  # first, non system headers that are included like <> - these are all
+  # local carveouts, and get sorted below c++ but before non grpc "" files
+  - Regex: '^<(openssl/|uv\.h|ares\.h|address_sorting/|gmock/|gtest/|zlib|zconf|benchmark/|google/)'
+    Priority: 30
+  # first C system headers - they have a . in the filename
+  - Regex: '^<.*\.'
+    Priority: 10
+  # then C++ system headers - no ., the only thing that will match now
+  - Regex: '^<'
+    Priority: 20
+  # finally other "" includes go between system headers and our headers
+  - Regex: '^"'
+    Priority: 40
 ---
 Language: ObjC
 BasedOnStyle: Google
diff --git a/.clang-tidy b/.clang-tidy
index 8714bad..03f4fcd 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -7,9 +7,6 @@
 # - bugprone-reserved-identifier
 #   Some macros need to be defined for portability purpose; e.g. _BSD_SOURCE.
 #
-# - google-upgrade-googletest-case
-#   This requires googletest 1.10 which is higher than ones installed on many linux distributions.
-#
 # - modernize-redundant-void-arg
 #   Some source should be strictly C99 and func(void) should be used.
 #
@@ -17,16 +14,19 @@
 # it's not activated yet due to the existing issues with the checks.
 # Once those issues are clear, these checks can be enabled later.
 #
+# - bugprone-assignment-in-if-condition
 # - bugprone-branch-clone
+# - bugprone-easily-swappable-parameters
+# - bugprone-implicit-widening-of-multiplication-result
 # - bugprone-infinite-loop
 # - bugprone-narrowing-conversions
 # - bugprone-not-null-terminated-result
 # - bugprone-signed-char-misuse
 # - bugprone-sizeof-expression
 # - bugprone-too-small-loop-variable
+# - bugprone-unchecked-optional-access
 # - clang-diagnostic-deprecated-declarations
 # - clang-diagnostic-unused-function
-# - google-readability-avoid-underscore-in-googletest-name
 # - google-runtime-int
 # - google-runtime-references
 # - modernize-avoid-bind
@@ -42,18 +42,21 @@
 # - modernize-use-equals-delete
 # - modernize-use-using
 # - performance-no-automatic-move
+# - performance-no-int-to-ptr
 # - performance-unnecessary-copy-initialization
 # - performance-unnecessary-value-param
 # - readability-else-after-return
 # - readability-implicit-bool-conversion
 # - readability-redundant-declaration
-# - readability-static-definition-in-anonymous-namespace
 #
 Checks: '-*,
   abseil-*,
   -abseil-no-namespace,
   bugprone-*,
+  -bugprone-assignment-in-if-condition,
   -bugprone-branch-clone,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-implicit-widening-of-multiplication-result,
   -bugprone-infinite-loop,
   -bugprone-narrowing-conversions,
   -bugprone-not-null-terminated-result,
@@ -61,13 +64,13 @@ Checks: '-*,
   -bugprone-signed-char-misuse,
   -bugprone-sizeof-expression,
   -bugprone-too-small-loop-variable,
+  -bugprone-unchecked-optional-access,
   google-*,
-  -google-readability-avoid-underscore-in-googletest-name,
   -google-runtime-int,
   -google-runtime-references,
-  -google-upgrade-googletest-case,
   performance-*,
   -performance-no-automatic-move,
+  -performance-no-int-to-ptr,
   -performance-unnecessary-copy-initialization,
   -performance-unnecessary-value-param,
   clang-diagnostic-deprecated-register,
@@ -103,18 +106,24 @@ Checks: '-*,
   modernize-use-nullptr,
   modernize-use-override,
   modernize-use-transparent-functors,
+  readability-braces-around-statements,
   readability-const-return-type,
   readability-container-size-empty,
   readability-delete-null-pointer,
   readability-deleted-default,
+  readability-duplicate-include,
   readability-function-size,
   readability-inconsistent-declaration-parameter-name,
   readability-misleading-indentation,
   readability-misplaced-array-index,
+  readability-redundant-access-specifiers,
   readability-redundant-control-flow,
   readability-redundant-function-ptr-dereference,
   readability-redundant-smartptr-get,
+  readability-redundant-string-cstr,
+  readability-redundant-string-init,
   readability-simplify-boolean-expr,
+  readability-static-definition-in-anonymous-namespace,
   readability-string-compare,
   readability-uniqueptr-delete-release'
 WarningsAsErrors: '*'
@@ -125,5 +134,7 @@ CheckOptions:
     value:  'absl::make_unique'
   - key:    modernize-make-unique.MakeSmartPtrFunctionHeader
     value:  'absl/memory/memory.h'
-  - key:    google-readability-braces-around-statements.ShortStatementLines
+  - key:    readability-braces-around-statements.ShortStatementLines
     value:  1
+  - key:    readability-simplify-boolean-expr.SimplifyDeMorgan
+    value:  false
diff --git a/.github/workflows/31167.supp b/.github/workflows/31167.supp
new file mode 100644
index 0000000..6a85e57
--- /dev/null
+++ b/.github/workflows/31167.supp
@@ -0,0 +1 @@
+interceptor_via_fun:grpc_error_set_str
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f25093f..8adc32e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,6 +5,7 @@ on:
   push:
     branches: 
     - master
+    - v0.*
   schedule:
   - cron: '0 22 * * *'
 
@@ -13,6 +14,7 @@ env:
   # Some of the bindgen tests generate "deref-nullptr" warnings, see https://github.com/rust-lang/rust-bindgen/issues/1651
   RUSTFLAGS: "--deny=warnings --allow deref-nullptr"
   TEST_BIND: 1
+  GRPC_VERBOSITY: "info"
 
 jobs:
   Linux-Format:
@@ -20,8 +22,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - run: sudo apt-get install -y clang-tidy-9
-    - run: sudo update-alternatives --install /usr/bin/clang-tidy clang-tidy /usr/bin/clang-tidy-9 100
     - run: which cargo && cargo version && clang --version && openssl version && which cmake && cmake --version
     - run: cargo xtask submodule
     - run: cargo fmt --all -- --check
@@ -35,9 +35,6 @@ jobs:
           - host: ubuntu-latest
             profile: 
             suffix:
-          - host: ARM64
-            profile: --release
-            suffix: -Arm64
     name: Linux-Stable${{ matrix.suffix }}
     runs-on: ${{ matrix.host }}
     steps:
@@ -50,6 +47,7 @@ jobs:
     - run: cargo xtask bindgen
     - run: cargo build --no-default-features
     - run: cargo build --no-default-features --features protobuf-codec
+    - run: cargo build --no-default-features --features protobufv3-codec
     - run: cargo build --no-default-features --features prost-codec
     - run: cd proto && cargo build --no-default-features --features prost-codec
     - run: cargo build
@@ -62,9 +60,6 @@ jobs:
           - host: ubuntu-latest
             profile: 
             suffix:
-          - host: ARM64
-            profile: --release
-            suffix: -Arm64
     name: Linux-Stable-openssl${{ matrix.suffix }}
     runs-on: ${{ matrix.host }}
     steps:
@@ -81,14 +76,18 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - run: rustup default nightly
+    - run: sudo ln -s /usr/bin/llvm-symbolizer-14 /usr/bin/llvm-symbolizer
     - run: which cargo && cargo version && clang --version && openssl version
     - run: cargo xtask submodule
     - run: cargo build --no-default-features
     - run: cargo build --no-default-features --features protobuf-codec
+    - run: cargo build --no-default-features --features protobufv3-codec
     - run: cargo build --no-default-features --features prost-codec
     - run: cargo build
     - run: cargo test --all
-    - run: RUSTFLAGS="-Z sanitizer=address" cargo test --all --target x86_64-unknown-linux-gnu
+    # See https://github.com/grpc/grpc/pull/31167
+    - run: RUSTFLAGS="-Z sanitizer=address" ASAN_OPTIONS=suppressions=`pwd`/.github/workflows/31167.supp cargo test --all --target x86_64-unknown-linux-gnu
+    - run: cargo test --features "nightly"
 
   Mac:
     name: Mac
@@ -97,11 +96,15 @@ jobs:
     - uses: actions/checkout@v2
     - run: which cargo && cargo version && clang --version && openssl version
     - run: cargo xtask submodule
-    - run: cargo build --no-default-features --features use-bindgen
-    - run: cargo build --no-default-features --features "protobuf-codec use-bindgen"
-    - run: cargo build --no-default-features --features "prost-codec use-bindgen"
+    - run: env TEST_BIND=0 cargo xtask bindgen && git diff --exit-code HEAD
+    - run: cargo xtask bindgen
+    - run: cargo build --no-default-features
+    - run: cargo build --no-default-features --features "protobuf-codec"
+    - run: cargo build --no-default-features --features "protobufv3-codec"
+    - run: cargo build --no-default-features --features "prost-codec"
     - run: cargo build
     - run: cargo test --all
+    - run: cargo test --features "nightly"
 
   Mac-openssl:
     name: Mac-openssl
@@ -123,11 +126,12 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - run: choco install -y llvm
-    - run: refreshenv
+    - run: Import-Module $env:ChocolateyInstall\helpers\chocolateyProfile.psm1
     - run: go version ; cargo version ; cmake --version 
     - run: cargo xtask submodule
     - run: cargo build
     - run: cargo test --all
+    - run: cargo test --features "nightly"
   
   Pre-Release:
     name: Pre-Release
diff --git a/Android.bp b/Android.bp
index a8a507d..2fb65f0 100644
--- a/Android.bp
+++ b/Android.bp
@@ -20,11 +20,10 @@ license {
 
 rust_library {
     name: "libgrpcio",
-    // has rustc warnings
     host_supported: true,
     crate_name: "grpcio",
     cargo_env_compat: true,
-    cargo_pkg_version: "0.12.1",
+    cargo_pkg_version: "0.13.0",
     srcs: ["src/lib.rs"],
     edition: "2018",
     features: [
@@ -34,8 +33,8 @@ rust_library {
         "protobuf-codec",
     ],
     rustlibs: [
-        "libfutures_util",
         "libfutures_executor",
+        "libfutures_util",
         "libgrpcio_sys",
         "liblibc",
         "liblog_rust",
@@ -45,7 +44,6 @@ rust_library {
     apex_available: [
         "//apex_available:platform",
     ],
-    product_available: false,
     vendor_available: true,
     min_sdk_version: "29",
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2899f77..4d7e4e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# 0.13.0 - 2023-08-17
+
+- Publicize prost service generator (#612)
+- Update grpc to 1.56.2 (#621) (#624) (#629)
+- Fix unknown log file and module in slog (#623)
+- gate auth context under _secure feature (#622)
+- rust-protobuf 3 support (#615)
+
 # 0.12.1 - 2023-02-14
 
 - Provide more debug info for RpcStatus (#603)
diff --git a/Cargo.toml b/Cargo.toml
index 83a57dd..ec94fdc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@
 [package]
 edition = "2018"
 name = "grpcio"
-version = "0.12.1"
+version = "0.13.0"
 authors = ["The TiKV Project Developers"]
 autoexamples = false
 description = "The rust language implementation of gRPC, base on the gRPC c core library."
@@ -52,7 +52,7 @@ features = [
 default-features = false
 
 [dependencies.grpcio-sys]
-version = "0.12.1"
+version = "0.13.0"
 default-features = false
 
 [dependencies.libc]
@@ -72,6 +72,11 @@ optional = true
 version = "2.0"
 optional = true
 
+[dependencies.protobufv3]
+version = "3.2"
+optional = true
+package = "protobuf"
+
 [features]
 _secure = []
 boringssl = [
@@ -97,6 +102,7 @@ prost-codec = [
     "bytes",
 ]
 protobuf-codec = ["protobuf"]
+protobufv3-codec = ["protobufv3"]
 
 [badges.travis-ci]
 repository = "tikv/grpc-rs"
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
index 68067cf..2334a42 100644
--- a/Cargo.toml.orig
+++ b/Cargo.toml.orig
@@ -1,6 +1,6 @@
 [package]
 name = "grpcio"
-version = "0.12.1"
+version = "0.13.0"
 edition = "2018"
 authors = ["The TiKV Project Developers"]
 license = "Apache-2.0"
@@ -17,11 +17,12 @@ autoexamples = false
 all-features = true
 
 [dependencies]
-grpcio-sys = { path = "grpc-sys", version = "0.12.1", default-features = false }
+grpcio-sys = { path = "grpc-sys", version = "0.13.0", default-features = false }
 libc = "0.2"
 futures-executor = "0.3"
 futures-util = { version = "0.3", default-features = false, features = ["std", "sink"] }
 protobuf = { version = "2.0", optional = true }
+protobufv3 = { package = "protobuf", version = "3.2", optional = true }
 prost = { version = "0.11", optional = true }
 bytes = { version = "1.0", optional = true }
 log = "0.4"
@@ -44,6 +45,7 @@ exclude = ["xtask"]
 default = ["protobuf-codec", "boringssl"]
 _secure = []
 protobuf-codec = ["protobuf"]
+protobufv3-codec = ["protobufv3"]
 prost-codec = ["prost", "bytes"]
 nightly = []
 boringssl = ["grpcio-sys/boringssl", "_secure"]
@@ -55,4 +57,4 @@ no-omit-frame-pointer = ["grpcio-sys/no-omit-frame-pointer"]
 travis-ci = { repository = "tikv/grpc-rs" }
 
 [patch.crates-io]
-grpcio-compiler = { path = "compiler", version = "0.12.1", default-features = false }
+grpcio-compiler = { path = "compiler", version = "0.13.0" }
diff --git a/METADATA b/METADATA
index 3129a8f..082d18a 100644
--- a/METADATA
+++ b/METADATA
@@ -1,3 +1,7 @@
+# This project was upgraded with external_updater.
+# Usage: tools/external_updater/updater.sh update rust/crates/grpcio
+# For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md
+
 name: "grpcio"
 description: "The rust language implementation of gRPC, base on the gRPC c core library."
 third_party {
@@ -7,13 +11,13 @@ third_party {
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/grpcio/grpcio-0.9.1.crate"
+    value: "https://static.crates.io/crates/grpcio/grpcio-0.13.0.crate"
   }
-  version: "0.12.1"
+  version: "0.13.0"
   license_type: NOTICE
   last_upgrade_date {
     year: 2023
-    month: 6
-    day: 21
+    month: 10
+    day: 26
   }
 }
diff --git a/README.md b/README.md
index 7767c62..f027da4 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ This project is still under development. The following features with the check m
 - binutils >= 2.22
 - LLVM and Clang >= 3.9 if you need to generate bindings at compile time.
 
-For Linux and MacOS, you also need to install gcc 4.9+ (or clang) too.
+For Linux and MacOS, you also need to install gcc 7.3+ (or clang 6+) too.
 
 Bindings are pre-generated for x86_64/arm64 Linux. For other platforms, bindings are generated at compile time.
 
@@ -89,7 +89,7 @@ To include this project as a dependency:
 
 ```
 [dependencies]
-grpcio = "0.12"
+grpcio = "0.13"
 ```
 
 ### Feature `boringssl`
@@ -99,7 +99,7 @@ mechanism. When you do not need it, for example when working in intranet,
 you can disable it by using the following configuration:
 ```
 [dependencies]
-grpcio = { version = "0.12", default-features = false, features = ["protobuf-codec"] }
+grpcio = { version = "0.13", default-features = false, features = ["protobuf-codec"] }
 ```
 
 ### Feature `prost-codec` and `protobuf-codec`
@@ -119,7 +119,7 @@ your `Cargo.toml`'s features list for `gprcio`, which requires openssl (>=1.0.2)
 
 ```toml
 [dependencies]
-grpcio = { version = "0.12", features = ["openssl"] }
+grpcio = { version = "0.13", features = ["openssl"] }
 ```
 
 Feature `openssl-vendored` is the same as feature `openssl` except it will build openssl from
diff --git a/src/call/server.rs b/src/call/server.rs
index 35149e0..ce3ca76 100644
--- a/src/call/server.rs
+++ b/src/call/server.rs
@@ -16,7 +16,6 @@ use futures_util::{Sink, Stream};
 use parking_lot::Mutex;
 
 use super::{RpcStatus, ShareCall, ShareCallHolder, WriteFlags};
-use crate::auth_context::AuthContext;
 use crate::buf::GrpcSlice;
 use crate::call::{
     BatchContext, Call, MessageReader, MethodType, RpcStatusCode, SinkBase, StreamingBase,
@@ -193,10 +192,11 @@ impl RequestContext {
     }
 
     /// If the server binds in non-secure mode, this will return None
-    fn auth_context(&self) -> Option<AuthContext> {
+    #[cfg(feature = "_secure")]
+    fn auth_context(&self) -> Option<crate::AuthContext> {
         unsafe {
             let call = grpc_sys::grpcwrap_request_call_context_get_call(self.ctx);
-            AuthContext::from_call_ptr(call)
+            crate::AuthContext::from_call_ptr(call)
         }
     }
 }
@@ -690,7 +690,8 @@ impl<'a> RpcContext<'a> {
     /// Wrapper around the gRPC Core AuthContext
     ///
     /// If the server binds in non-secure mode, this will return None
-    pub fn auth_context(&self) -> Option<AuthContext> {
+    #[cfg(feature = "_secure")]
+    pub fn auth_context(&self) -> Option<crate::AuthContext> {
         self.ctx.auth_context()
     }
 
diff --git a/src/channel.rs b/src/channel.rs
index 057b614..1ddf079 100644
--- a/src/channel.rs
+++ b/src/channel.rs
@@ -31,7 +31,7 @@ pub use crate::grpc_sys::{
 
 /// Ref: http://www.grpc.io/docs/guides/wire.html#user-agents
 fn format_user_agent_string(agent: &str) -> CString {
-    let version = env!("CARGO_PKG_VERSION");
+    let version = "0.13.0";
     let trimed_agent = agent.trim();
     let val = if trimed_agent.is_empty() {
         format!("grpc-rust/{version}")
diff --git a/src/codec.rs b/src/codec.rs
index e4449e6..c51a284 100644
--- a/src/codec.rs
+++ b/src/codec.rs
@@ -29,11 +29,15 @@ pub struct Marshaller<T> {
     pub de: DeserializeFn<T>,
 }
 
-#[cfg(feature = "protobuf-codec")]
+#[cfg(any(feature = "protobuf-codec", feature = "protobufv3-codec"))]
 pub mod pb_codec {
-    use protobuf::{CodedInputStream, CodedOutputStream, Message};
+    #[cfg(feature = "protobuf-codec")]
+    use protobuf::{CodedOutputStream, Message};
 
-    use super::{MessageReader, MAX_MESSAGE_SIZE};
+    #[cfg(feature = "protobufv3-codec")]
+    use protobufv3::{CodedOutputStream, Message};
+
+    use super::{from_buf_read, MessageReader, MAX_MESSAGE_SIZE};
     use crate::buf::GrpcSlice;
     use crate::error::{Error, Result};
 
@@ -57,13 +61,23 @@ pub mod pb_codec {
 
     #[inline]
     pub fn de<T: Message>(mut reader: MessageReader) -> Result<T> {
-        let mut s = CodedInputStream::from_buffered_reader(&mut reader);
+        let mut s = from_buf_read(&mut reader);
         let mut m = T::new();
         m.merge_from(&mut s)?;
         Ok(m)
     }
 }
 
+#[cfg(feature = "protobuf-codec")]
+fn from_buf_read(reader: &mut MessageReader) -> protobuf::CodedInputStream {
+    protobuf::CodedInputStream::from_buffered_reader(reader)
+}
+
+#[cfg(feature = "protobufv3-codec")]
+fn from_buf_read(reader: &mut MessageReader) -> protobufv3::CodedInputStream {
+    protobufv3::CodedInputStream::from_buf_read(reader)
+}
+
 #[cfg(feature = "prost-codec")]
 pub mod pr_codec {
     use prost::Message;
diff --git a/src/error.rs b/src/error.rs
index 260425c..3b0dc74 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -9,6 +9,9 @@ use crate::grpc_sys::grpc_call_error;
 #[cfg(feature = "protobuf-codec")]
 use protobuf::ProtobufError;
 
+#[cfg(feature = "protobufv3-codec")]
+use protobufv3::Error as ProtobufError;
+
 /// Errors generated from this library.
 #[derive(Debug)]
 pub enum Error {
@@ -58,7 +61,7 @@ impl error::Error for Error {
     }
 }
 
-#[cfg(feature = "protobuf-codec")]
+#[cfg(any(feature = "protobuf-codec", feature = "protobufv3-codec"))]
 impl From<ProtobufError> for Error {
     fn from(e: ProtobufError) -> Error {
         Error::Codec(Box::new(e))
diff --git a/src/lib.rs b/src/lib.rs
index 0e5d225..c8cebca 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -29,7 +29,6 @@ use grpcio_sys as grpc_sys;
 #[macro_use]
 extern crate log;
 
-mod auth_context;
 mod buf;
 mod call;
 mod channel;
@@ -63,12 +62,11 @@ pub use crate::channel::{
 };
 pub use crate::client::Client;
 
-#[cfg(feature = "protobuf-codec")]
+#[cfg(any(feature = "protobuf-codec", feature = "protobufv3-codec"))]
 pub use crate::codec::pb_codec::{de as pb_de, ser as pb_ser};
 #[cfg(feature = "prost-codec")]
 pub use crate::codec::pr_codec::{de as pr_de, ser as pr_ser};
 
-pub use crate::auth_context::{AuthContext, AuthProperty, AuthPropertyIter};
 pub use crate::codec::{Marshaller, MAX_MESSAGE_SIZE};
 pub use crate::env::{EnvBuilder, Environment};
 pub use crate::error::{Error, Result};
diff --git a/src/log_util.rs b/src/log_util.rs
index 974f27a..0eddf83 100644
--- a/src/log_util.rs
+++ b/src/log_util.rs
@@ -30,9 +30,9 @@ extern "C" fn delegate(c_args: *mut gpr_log_func_args) {
         &Record::builder()
             .args(format_args!("{msg}"))
             .level(level)
-            .file(file_str.into())
+            .file_static(file_str.into())
             .line(line.into())
-            .module_path(module_path!().into())
+            .module_path_static(module_path!().into())
             .build(),
     );
 }
diff --git a/src/metadata.rs b/src/metadata.rs
index fc925de..3f940b0 100644
--- a/src/metadata.rs
+++ b/src/metadata.rs
@@ -19,11 +19,11 @@ fn normalize_key(key: &str, binary: bool) -> Result<Cow<'_, str>> {
     let mut is_upper_case = false;
     for b in key.as_bytes() {
         let b = *b;
-        if (b'A'..=b'Z').contains(&b) {
+        if b.is_ascii_uppercase() {
             is_upper_case = true;
             continue;
-        } else if (b'a'..=b'z').contains(&b)
-            || (b'0'..=b'9').contains(&b)
+        } else if b.is_ascii_lowercase()
+            || b.is_ascii_digit()
             || b == b'_'
             || b == b'-'
             || b == b'.'
diff --git a/src/auth_context.rs b/src/security/auth_context.rs
index 2658336..2658336 100644
--- a/src/auth_context.rs
+++ b/src/security/auth_context.rs
diff --git a/src/security/mod.rs b/src/security/mod.rs
index c935461..d0fa76c 100644
--- a/src/security/mod.rs
+++ b/src/security/mod.rs
@@ -1,11 +1,15 @@
 // Copyright 2020 TiKV Project Authors. Licensed under Apache-2.0.
 
 #[cfg(feature = "_secure")]
+mod auth_context;
+#[cfg(feature = "_secure")]
 mod credentials;
 
 use grpcio_sys::{grpc_channel_credentials, grpc_server_credentials};
 
 #[cfg(feature = "_secure")]
+pub use self::auth_context::*;
+#[cfg(feature = "_secure")]
 pub use self::credentials::{
     CertificateRequestType, ChannelCredentialsBuilder, ServerCredentialsBuilder,
     ServerCredentialsFetcher,
@@ -59,6 +63,7 @@ impl ServerCredentials {
             ServerCredentials::from_raw(creds)
         }
     }
+
     pub(crate) unsafe fn from_raw(creds: *mut grpc_server_credentials) -> ServerCredentials {
         ServerCredentials {
             creds,