Add low-level p9 protocol implementation

Implement encoding and decoding various primitives using the p9
protocol.  In addition, add a procedural macro to derive the encoding
and decoding implementation for structs built out of the primitives.

BUG=chromium:703939
TEST=unit tests
CQ-DEPEND=CL:1065063

Change-Id: I7256633fb7002da9ce8af03be2f24410b90ccf3f
Signed-off-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/969965
Reviewed-by: Stephen Barber <smbarber@chromium.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 485347f..0f6314f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -65,6 +65,7 @@ dependencies = [
  "kvm_sys 0.1.0",
  "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "net_util 0.1.0",
+ "p9 0.1.0",
  "plugin_proto 0.14.0",
  "protobuf 1.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "qcow 0.1.0",
@@ -211,6 +212,13 @@ dependencies = [
 ]
 
 [[package]]
+name = "p9"
+version = "0.1.0"
+dependencies = [
+ "wire_format_derive 0.1.0",
+]
+
+[[package]]
 name = "plugin_proto"
 version = "0.14.0"
 dependencies = [
@@ -225,6 +233,14 @@ name = "poll_token_derive"
 version = "0.1.0"
 
 [[package]]
+name = "proc-macro2"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "protobuf"
 version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -265,6 +281,14 @@ dependencies = [
 ]
 
 [[package]]
+name = "quote"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "rand"
 version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -274,6 +298,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "syn"
+version = "0.12.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "sys_util"
 version = "0.1.0"
 dependencies = [
@@ -297,6 +331,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "unicode-xid"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "vhost"
 version = "0.1.0"
 dependencies = [
@@ -325,6 +364,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "wire_format_derive"
+version = "0.1.0"
+dependencies = [
+ "proc-macro2 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.12.15 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "x86_64"
 version = "0.1.0"
 dependencies = [
@@ -350,8 +398,12 @@ dependencies = [
 "checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 "checksum libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)" = "36fbc8a8929c632868295d0178dd8f63fc423fd7537ad0738372bd010b3ac9b0"
 "checksum log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "89f010e843f2b1a31dbd316b3b8d443758bc634bed37aabade59c686d644e0a2"
+"checksum proc-macro2 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "cd07deb3c6d1d9ff827999c7f9b04cdfd66b1b17ae508e14fe47b620f2282ae0"
 "checksum protobuf 1.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "bec26e67194b7d991908145fdf21b7cae8b08423d96dcb9e860cd31f854b9506"
 "checksum protoc 1.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "5379c34ea2f9c69b99e6f25f6d0e6619876195ae7a3dcaf69f66bdb6c2e4dceb"
 "checksum protoc-rust 1.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "e211a7f56b2d020a59d483f652cfdfa6fd42e37bf544c0231e373807aa316c45"
+"checksum quote 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1eca14c727ad12702eb4b6bfb5a232287dcf8385cb8ca83a3eeaf6519c44c408"
 "checksum rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)" = "512870020642bb8c221bf68baa1b2573da814f6ccfe5c9699b1c303047abe9b1"
+"checksum syn 0.12.15 (registry+https://github.com/rust-lang/crates.io-index)" = "c97c05b8ebc34ddd6b967994d5c6e9852fa92f8b82b3858c39451f97346dcce5"
 "checksum tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"
+"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"