put cert-related messages in a shared package

Author: wojcik91

v2/common.proto

@@ -0,0 +1,27 @@
+syntax = "proto3";
+package defguard.common.v2;
+
+/*
+ * Raw DER-encoded certificate or key payload.
+ */
+message DerPayload {
+  bytes der_data = 1;
+}
+
+/*
+ * TLS certificate identity used to request a CSR from a component.
+ */
+message CertificateInfo {
+  string cert_hostname = 1;
+}
+
+/*
+ * Structured log line streamed by a component during setup.
+ */
+message LogEntry {
+  string level = 1;
+  string target = 2;
+  string message = 3;
+  string timestamp = 4;
+  map<string, string> fields = 5;
+}

v2/gateway.proto

@@ -3,6 +3,7 @@ package defguard.gateway.v2;
 
 import "enterprise/v2/firewall/firewall.proto";
 import "google/protobuf/empty.proto";
+import "v2/common.proto";
 
 /*
  * Networking and VPN configuration send from Core to Gateway.
@@ -90,25 +91,9 @@ service Gateway {
   rpc Purge(google.protobuf.Empty) returns (google.protobuf.Empty);
 }
 
-message DerPayload {
-  bytes der_data = 1;
-}
-
-message CertificateInfo {
-  string cert_hostname = 1;
-}
-
-message LogEntry {
-  string level = 1;
-  string target = 2;
-  string message = 3;
-  string timestamp = 4;
-  map<string, string> fields = 5;
-}
-
 // Service used for initial Gateway setup, for configuring TLS certificate on Gateway for gRPC communication.
 service GatewaySetup {
-  rpc Start(google.protobuf.Empty) returns (stream LogEntry);
-  rpc GetCsr(CertificateInfo) returns (DerPayload);
-  rpc SendCert(DerPayload) returns (google.protobuf.Empty);
+  rpc Start(google.protobuf.Empty) returns (stream defguard.common.v2.LogEntry);
+  rpc GetCsr(defguard.common.v2.CertificateInfo) returns (defguard.common.v2.DerPayload);
+  rpc SendCert(defguard.common.v2.DerPayload) returns (google.protobuf.Empty);
 }

v2/proxy.proto

@@ -3,6 +3,7 @@ package defguard.proxy.v2;
 
 import "common/client_types.proto";
 import "google/protobuf/empty.proto";
+import "v2/common.proto";
 
 // Client MFA (proxy-internal only)
 message ClientMfaTokenValidationRequest {
@@ -182,14 +183,6 @@ message CoreRequest {
   }
 }
 
-message CertificateInfo {
-  string cert_hostname = 1;
-}
-
-message DerPayload {
-  bytes der_data = 1;
-}
-
 service Proxy {
   /*
    * Bi-directional communication between core and proxy.
@@ -209,17 +202,9 @@ service Proxy {
   rpc TriggerAcme(AcmeChallenge) returns (stream AcmeIssueEvent);
 }
 
-message LogEntry {
-  string level = 1;
-  string target = 2;
-  string message = 3;
-  string timestamp = 4;
-  map<string, string> fields = 5;
-}
-
 // Service used for initial Proxy setup, used for configuring TLS certificate on Proxy for gRPC communication.
 service ProxySetup {
-  rpc Start(google.protobuf.Empty) returns (stream LogEntry);
-  rpc GetCsr(CertificateInfo) returns (DerPayload);
-  rpc SendCert(DerPayload) returns (google.protobuf.Empty);
+  rpc Start(google.protobuf.Empty) returns (stream defguard.common.v2.LogEntry);
+  rpc GetCsr(defguard.common.v2.CertificateInfo) returns (defguard.common.v2.DerPayload);
+  rpc SendCert(defguard.common.v2.DerPayload) returns (google.protobuf.Empty);
 }