COCOS-369 - Enable compiling gRPC clients without cGo

go.mod

@@ -1,14 +1,14 @@
 module github.com/ultravioletrs/cocos
 
-go 1.23.0
+go 1.23.5
 
 require (
 	github.com/absmach/magistrala v0.15.1
 	github.com/caarlos0/env/v11 v11.3.1
 	github.com/fatih/color v1.18.0
 	github.com/go-kit/kit v0.13.0
 	github.com/gofrs/uuid v4.4.0+incompatible
-	github.com/google/go-sev-guest v0.12.1
+	github.com/google/go-sev-guest v0.11.1
 	github.com/google/go-tdx-guest v0.3.1 // indirect
 	github.com/mdlayher/vsock v1.2.1
 	github.com/spf13/cobra v1.8.1
@@ -19,8 +19,8 @@ require (
 	go.opentelemetry.io/otel/trace v1.34.0
 	golang.org/x/crypto v0.32.0
 	golang.org/x/sync v0.11.0
-	google.golang.org/grpc v1.69.4
-	google.golang.org/protobuf v1.36.3
+	google.golang.org/grpc v1.70.0
+	google.golang.org/protobuf v1.36.5
 )
 
 require (
@@ -33,6 +33,7 @@ require (
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/gofrs/uuid/v5 v5.3.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/certificate-transparency-go v1.1.2 // indirect
 	github.com/google/go-attestation v0.5.0 // indirect
 	github.com/google/go-tspi v0.3.0 // indirect
@@ -43,6 +44,7 @@ require (
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.0 // indirect
+	github.com/pborman/uuid v1.2.1 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.57.0 // indirect
 	go.opentelemetry.io/otel v1.34.0 // indirect
@@ -66,7 +68,7 @@ require (
 	github.com/google/go-tpm-tools v0.4.4
 	github.com/google/logger v1.1.1
 	github.com/google/uuid v1.6.0
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.23.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/mdlayher/socket v0.4.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
@@ -82,9 +84,9 @@ require (
 	golang.org/x/net v0.34.0 // indirect
 	golang.org/x/sys v0.29.0 // indirect
 	golang.org/x/term v0.28.0
-	golang.org/x/text v0.21.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20241104194629-dd2ea8efbc28 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f // indirect
+	golang.org/x/text v0.22.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250204164813-702378808489 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250207221924-e9438ea467c6 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 

go.sum

@@ -356,8 +356,8 @@ github.com/google/go-licenses v0.0.0-20210329231322-ce1d9163b77d/go.mod h1:+TYOm
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
 github.com/google/go-replayers/grpcreplay v0.1.0/go.mod h1:8Ig2Idjpr6gifRd6pNVggX6TC1Zw6Jx74AKp7QNH2QE=
 github.com/google/go-replayers/httpreplay v0.1.0/go.mod h1:YKZViNhiGgqdBlUbI2MwGpq4pXxNmhJLPHQ7cv2b5no=
-github.com/google/go-sev-guest v0.12.1 h1:H4rFYnPIn8HtqEsNTmh56Zxcf9BI9n48ZSYCnpYLYvc=
-github.com/google/go-sev-guest v0.12.1/go.mod h1:SK9vW+uyfuzYdVN0m8BShL3OQCtXZe/JPF7ZkpD3760=
+github.com/google/go-sev-guest v0.11.1 h1:gnww4U8fHV5DCPz4gykr1s8SEX1fFNcxCBy+vvXN24k=
+github.com/google/go-sev-guest v0.11.1/go.mod h1:qBOfb+JmgsUI3aUyzQoGC13Kpp9zwLeWvuyXmA9q77w=
 github.com/google/go-tdx-guest v0.3.1 h1:gl0KvjdsD4RrJzyLefDOvFOUH3NAJri/3qvaL5m83Iw=
 github.com/google/go-tdx-guest v0.3.1/go.mod h1:/rc3d7rnPykOPuY8U9saMyEps0PZDThLk/RygXm04nE=
 github.com/google/go-tpm v0.9.3 h1:+yx0/anQuGzi+ssRqeD6WpXjW2L/V0dItUayO0i9sRc=
@@ -427,8 +427,8 @@ github.com/grpc-ecosystem/grpc-gateway v1.9.2/go.mod h1:vNeuVxBJEsws4ogUvrchl83t
 github.com/grpc-ecosystem/grpc-gateway v1.9.5/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.14.6/go.mod h1:zdiPV4Yse/1gnckTHtghG4GkDEdKCRJduHpTxT3/jcw=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.23.0 h1:ad0vkEBuk23VJzZR9nkLVG0YAoN9coASF1GusYX6AlU=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.23.0/go.mod h1:igFoXX2ELCW06bol23DWPB5BEWfZISOzSP5K2sbLea0=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 h1:e9Rjr40Z98/clHv5Yg79Is0NtosR5LXRvdr7o/6NwbA=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1/go.mod h1:tIxuGz/9mpox++sgp9fJjHO0+q1X9/UOWd798aAm22M=
 github.com/hashicorp/consul/api v1.1.0/go.mod h1:VmuI/Lkw1nC05EYQWNKwWGbkg+FbDBtguAZLlVdkD9Q=
 github.com/hashicorp/consul/api v1.3.0/go.mod h1:MmDNSzIMUjNpY/mQ398R4bk2FnqQLoPndWW5VkKPlCE=
 github.com/hashicorp/consul/sdk v0.1.1/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
@@ -621,6 +621,8 @@ github.com/otiai10/mint v1.3.1/go.mod h1:/yxELlJQ0ufhjUwhshSj+wFjZ78CnZ48/1wtmBH
 github.com/pact-foundation/pact-go v1.0.4/go.mod h1:uExwJY4kCzNPcHRj+hCR/HBbOOIwwtUjcrb0b5/5kLM=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
 github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
+github.com/pborman/uuid v1.2.1 h1:+ZZIw58t/ozdjRaXh/3awHfmWRbzYxJoAdNJxe/3pvw=
+github.com/pborman/uuid v1.2.1/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
 github.com/pelletier/go-buffruneio v0.2.0/go.mod h1:JkE26KsDizTr40EUHkXVtNPvgGtbSNq5BcowyYOWdKo=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/performancecopilot/speed v3.0.0+incompatible/go.mod h1:/CLtqpZ5gBg1M9iaPbIdPPGyKcA8hKdoy6hAWba7Yac=
@@ -844,8 +846,8 @@ go.opentelemetry.io/otel/sdk v1.32.0 h1:RNxepc9vK59A8XsgZQouW8ue8Gkb4jpWtJm9ge5l
 go.opentelemetry.io/otel/sdk v1.32.0/go.mod h1:LqgegDBjKMmb2GC6/PrTnteJG39I8/vJCAP9LlJXEjU=
 go.opentelemetry.io/otel/sdk/export/metric v0.20.0/go.mod h1:h7RBNMsDJ5pmI1zExLi+bJK+Dr8NQCh0qGhm1KDnNlE=
 go.opentelemetry.io/otel/sdk/metric v0.20.0/go.mod h1:knxiS8Xd4E/N+ZqKmUPf3gTTZ4/0TjTXukfxjzSTpHE=
-go.opentelemetry.io/otel/sdk/metric v1.31.0 h1:i9hxxLJF/9kkvfHppyLL55aW7iIJz4JjxTeYusH7zMc=
-go.opentelemetry.io/otel/sdk/metric v1.31.0/go.mod h1:CRInTMVvNhUKgSAMbKyTMxqOBC0zgyxzW55lZzX43Y8=
+go.opentelemetry.io/otel/sdk/metric v1.32.0 h1:rZvFnvmvawYb0alrYkjraqJq0Z4ZUJAiyYCU9snn1CU=
+go.opentelemetry.io/otel/sdk/metric v1.32.0/go.mod h1:PWeZlq0zt9YkYAp3gjKZ0eicRYvOh1Gd+X99x6GHpCQ=
 go.opentelemetry.io/otel/trace v0.20.0/go.mod h1:6GjCW8zgDjwGHGa6GkyeB8+/5vjT16gUEi0Nf1iBdgw=
 go.opentelemetry.io/otel/trace v1.34.0 h1:+ouXS2V8Rd4hp4580a8q23bg0azF2nI8cqLYnC8mh/k=
 go.opentelemetry.io/otel/trace v1.34.0/go.mod h1:Svm7lSjQD7kG7KJ/MUHPVXSDGz2OX4h0M2jHBhmSfRE=
@@ -1098,8 +1100,8 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
-golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
+golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
+golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -1289,10 +1291,10 @@ google.golang.org/genproto v0.0.0-20210728212813-7823e685a01f/go.mod h1:ob2IJxKr
 google.golang.org/genproto v0.0.0-20210805201207-89edb61ffb67/go.mod h1:ob2IJxKrgPT52GcgX759i1sleT07tiKowYBGbczaW48=
 google.golang.org/genproto v0.0.0-20210813162853-db860fec028c/go.mod h1:cFeNkxwySK631ADgubI+/XFU/xp8FD5KIVV4rj8UC5w=
 google.golang.org/genproto v0.0.0-20210821163610-241b8fcbd6c8/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
-google.golang.org/genproto/googleapis/api v0.0.0-20241104194629-dd2ea8efbc28 h1:M0KvPgPmDZHPlbRbaNU1APr28TvwvvdUPlSv7PUvy8g=
-google.golang.org/genproto/googleapis/api v0.0.0-20241104194629-dd2ea8efbc28/go.mod h1:dguCy7UOdZhTvLzDyt15+rOrawrpM4q7DD9dQ1P11P4=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f h1:OxYkA3wjPsZyBylwymxSHa7ViiW1Sml4ToBrncvFehI=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20250115164207-1a7da9e5054f/go.mod h1:+2Yz8+CLJbIfL9z73EW45avw8Lmge3xVElCP9zEKi50=
+google.golang.org/genproto/googleapis/api v0.0.0-20250204164813-702378808489 h1:fCuMM4fowGzigT89NCIsW57Pk9k2D12MMi2ODn+Nk+o=
+google.golang.org/genproto/googleapis/api v0.0.0-20250204164813-702378808489/go.mod h1:iYONQfRdizDB8JJBybql13nArx91jcUk7zCXEsOofM4=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250207221924-e9438ea467c6 h1:2duwAxN2+k0xLNpjnHTXoMUgnv6VPSp5fiqTuwSxjmI=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250207221924-e9438ea467c6/go.mod h1:8BS3B93F/U1juMFq9+EDk+qOT5CO1R9IzXxG3PTqiRk=
 google.golang.org/grpc v1.8.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@@ -1325,8 +1327,8 @@ google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQ
 google.golang.org/grpc v1.39.0/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
 google.golang.org/grpc v1.39.1/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
 google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.69.4 h1:MF5TftSMkd8GLw/m0KM6V8CMOCY6NZ1NQDPGFgbTt4A=
-google.golang.org/grpc v1.69.4/go.mod h1:vyjdE6jLBI76dgpDojsFGNaHlxdjXN9ghpnd2o7JGZ4=
+google.golang.org/grpc v1.70.0 h1:pWFv03aZoHzlRKHWicjsZytKAiYCtNS0dHbXnIdq7jQ=
+google.golang.org/grpc v1.70.0/go.mod h1:ofIJqVKDXx/JiXrwr2IG4/zwdH9txy3IlF40RmcJSQw=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@@ -1342,8 +1344,8 @@ google.golang.org/protobuf v1.25.1-0.20200805231151-a709e31e5d12/go.mod h1:9JNX7
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.36.3 h1:82DV7MYdb8anAVi3qge1wSnMDrnKK7ebr+I0hHRN1BU=
-google.golang.org/protobuf v1.36.3/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
+google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

mockery.yml

@@ -105,3 +105,10 @@ packages:
           dir: "{{.InterfaceDir}}/mocks"
           filename: "server.go"
           mockname: "{{.InterfaceName}}"
+  github.com/google/go-sev-guest/client:
+    interfaces:
+      QuoteProvider:
+        config:
+          dir: "./pkg/attestation/quoteprovider/mocks"
+          filename: "QuoteProvider.go"
+          mockname: "{{.InterfaceName}}"

pkg/clients/grpc/agent/agent_test.go

@@ -101,7 +101,7 @@ func TestAgentClientIntegration(t *testing.T) {
 					Timeout: 1,
 				},
 			},
-			err: ErrAgentServiceUnavailable,
+			err: errors.New("failed to connect to grpc server"),
 		},
 		{
 			name: "invalid config, missing AttestationPolicy with aTLS",

pkg/clients/grpc/atls.go

@@ -0,0 +1,83 @@
+// Copyright (c) Ultraviolet
+// SPDX-License-Identifier: Apache-2.0
+
+//go:build cgo
+
+package grpc
+
+import (
+	"context"
+	"crypto/tls"
+	"crypto/x509"
+	"fmt"
+	"net"
+	"strconv"
+	"time"
+
+	"github.com/absmach/magistrala/pkg/errors"
+	"github.com/ultravioletrs/cocos/pkg/atls"
+	"github.com/ultravioletrs/cocos/pkg/attestation/quoteprovider"
+	"google.golang.org/grpc/credentials"
+)
+
+func setupATLS(cfg AgentClientConfig) (credentials.TransportCredentials, error) {
+	err := ReadAttestationPolicy(cfg.AttestationPolicy, &quoteprovider.AttConfigurationSEVSNP)
+	if err != nil {
+		return nil, errors.Wrap(fmt.Errorf("failed to read Attestation Policy"), err)
+	}
+
+	tlsConfig := &tls.Config{
+		InsecureSkipVerify:    true,
+		VerifyPeerCertificate: verifyPeerCertificateATLS,
+	}
+	return credentials.NewTLS(tlsConfig), nil
+}
+
+func CustomDialer(ctx context.Context, addr string) (net.Conn, error) {
+	ip, port, err := net.SplitHostPort(addr)
+	if err != nil {
+		return nil, fmt.Errorf("could not create a custom dialer")
+	}
+
+	p, err := strconv.Atoi(port)
+	if err != nil {
+		return nil, fmt.Errorf("bad format of IP address: %v", err)
+	}
+
+	conn, err := atls.DialTLSClient(ip, p)
+	if err != nil {
+		return nil, fmt.Errorf("could not create TLS connection")
+	}
+
+	return conn, nil
+}
+
+func verifyPeerCertificateATLS(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
+	cert, err := x509.ParseCertificate(rawCerts[0])
+	if err != nil {
+		return errors.Wrap(errCertificateParse, err)
+	}
+
+	err = checkIfCertificateSelfSigned(cert)
+	if err != nil {
+		return errors.Wrap(errAttVerification, err)
+	}
+
+	return nil
+}
+
+func checkIfCertificateSelfSigned(cert *x509.Certificate) error {
+	certPool := x509.NewCertPool()
+	certPool.AddCert(cert)
+
+	opts := x509.VerifyOptions{
+		Roots:       certPool,
+		CurrentTime: time.Now(),
+	}
+
+	if _, err := cert.Verify(opts); err != nil {
+		return err
+	}
+
+	return nil
+}