From 77f5088bf9ee547d7269847ed8692d5273c69eb3 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Fri, 29 May 2026 21:01:38 -0500 Subject: [PATCH 01/14] doc: design for gNOI ORAS Pull service Draft RFC for a new sonic.gnoi.oras.v1.Oras service that lets an orchestrator instruct a switch to pull an OCI/ORAS artifact from a registry into local staging, decoupled from install. Tracks ADO Feature #37984064. Signed-off-by: Dawei Huang --- doc/oras-pull-design.md | 351 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 351 insertions(+) create mode 100644 doc/oras-pull-design.md diff --git a/doc/oras-pull-design.md b/doc/oras-pull-design.md new file mode 100644 index 000000000..c3c63b8d4 --- /dev/null +++ b/doc/oras-pull-design.md @@ -0,0 +1,351 @@ +# Design: gNOI ORAS Pull Service + +**Status:** Draft +**Author:** Dawei Huang () +**Last updated:** 2026-05-29 +**Tracking:** ADO Feature #37984064 (KubeSonic OS image prefetch — ACR-driven gNOI install) + +## 1. Problem + +SONiC needs a way for an external orchestrator (KubeSonic control plane, ZTP +runner, NetBox automation, etc.) to **tell a switch to pull an OCI/ORAS artifact +from a registry to local disk**, so that a subsequent install step +(`gnoi.os.Install`, package update, container image swap, …) can run against a +known-good local copy. + +Today there is no gNMI/gNOI RPC that does this. The two superficially similar +options don't fit: + +| RPC | Direction | Why it doesn't fit ORAS | +| ------------------------------------ | --------------- | ------------------------------------------------------------------------------------------------------------ | +| `gnoi.file.TransferToRemote` | target → remote | Upload, not download. Wrong direction. | +| `gnoi.system.SetPackage` | client → target | Client must stream the bytes itself, or supply a `RemoteDownload` (HTTP/SFTP/SCP/HTTPS). No registry semantics — can't address `repository:tag`, doesn't understand manifests, layers, digests, or registry auth flows. | +| `gnoi.containerz.Deploy` | client → target | Client-streamed only. No "fetch this from a registry" mode. | + +We deliberately **do not** try to extend `RemoteDownload` with a new +`Protocol.ORAS` enum. OCI/ORAS is a richer model than a single +URL-plus-credentials blob: + +- Artifacts have a manifest, a manifest digest, and one or more layers with + per-layer media types and digests. +- Registry auth is non-trivial: anonymous, basic (ACR admin user), bearer + (pre-acquired token), or AAD workload identity federated to the device. +- We want digest-based idempotency, per-layer filtering, and per-layer staging + paths surfaced back to the caller. `RemoteDownload` can't carry any of that. + +## 2. Goals & non-goals + +**Goals** + +1. Pull an arbitrary OCI/ORAS artifact from a registry to a local staging + directory on the target. +2. Make the operation digest-addressable and idempotent — re-pulling an already + staged digest is a no-op. +3. Surface enough metadata (per-layer media type, digest, local path) for a + downstream installer to pick the right layer. +4. Stream progress so long-running pulls don't look hung. +5. Support both classic (basic / bearer) auth and AAD workload identity, with + workload identity as the preferred long-term mode. +6. Work on testbeds where the registry is not reachable via the device's + default route (lab fabric, air-gapped sites) by allowing an explicit HTTP + proxy and source-VRF. + +**Non-goals** + +1. **Installing** the artifact. `Pull` stages; `gnoi.os.Install` (or whatever + installer is appropriate for the artifact type) consumes the staged path. + Conflating them turns one RPC into a switch's entire image lifecycle. +2. Pushing artifacts from the device to a registry. Not in scope. +3. Garbage collection policy. We provide `List` and `Delete`; the policy of + when to delete is the orchestrator's call. +4. Registry mirroring / pull-through caches. Out of scope. + +## 3. Proposed service + +New service in a SONiC-owned proto package; do **not** put this under +`gnoi.*` (the gnoi org owns that namespace). + +```proto +syntax = "proto3"; + +package sonic.gnoi.oras.v1; +option go_package = "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras"; + +import "google/protobuf/duration.proto"; +import "google/protobuf/timestamp.proto"; + +service Oras { + // Pull fetches an OCI/ORAS artifact from a registry into the target's local + // staging store. Server-streamed so callers can show progress and react to + // cancellation. Final message is always a PullResult on success, or a gRPC + // status code on failure. + rpc Pull(PullRequest) returns (stream PullResponse); + + // List returns artifacts currently present in the local store, plus + // aggregate disk usage so operators can decide what to evict. + rpc List(ListRequest) returns (ListResponse); + + // Delete removes a previously staged artifact identified by artifact_id. + // No-op if the id does not exist (returns NOT_FOUND). + rpc Delete(DeleteRequest) returns (DeleteResponse); +} +``` + +### 3.1 PullRequest + +```proto +message PullRequest { + // Required. Registry hostname[:port], e.g. "ksdatatest.azurecr.io". + string registry = 1; + + // Required. Repository within the registry, e.g. "sonic-os-images". + string repository = 2; + + // Required. Exactly one of tag/digest must be set. If both are set the + // server MUST resolve the tag, compare against `digest`, and fail with + // FAILED_PRECONDITION if they disagree. + oneof reference { + string tag = 3; // e.g. "20230531.46" + string digest = 4; // e.g. "sha256:6f0923e8…" + } + + // Auth for the pull. Unset == anonymous. + AuthConfig auth = 5; + + // Optional. If set, only layers whose mediaType matches one of these + // are downloaded. Empty == all layers in the manifest. + // Use case: a SONiC OS artifact wrapping multiple files — fetch only the + // `.bin` layer, skip side-car SBOMs / signatures. + repeated string media_type_filter = 6; + + // Optional. Source address used for outbound connections (parity with + // gnoi.common.RemoteDownload). + string source_address = 7; + // Optional. Source VRF. + string source_vrf = 8; + + // Optional. HTTP(S) proxy (e.g. "http://10.250.0.1:8888"). Required on + // testbeds where the registry is not reachable via the default route. + string http_proxy = 9; + + // Optional. If true and the resolved manifest digest already exists in + // the local store, return success immediately without re-pulling. + bool skip_if_exists = 10; + + // Optional. Pre-pull guard: if set and the resolved manifest digest does + // not match, fail with FAILED_PRECONDITION before writing any bytes. + string expected_manifest_digest = 11; +} + +message AuthConfig { + oneof mode { + bool anonymous = 1; + BasicAuth basic = 2; + BearerAuth bearer = 3; + WorkloadIdentity workload = 4; // preferred + } +} +message BasicAuth { string username = 1; string password = 2; } +message BearerAuth { string token = 1; } +message WorkloadIdentity { + // Identifier of an AAD federated identity already provisioned on the device + // (e.g. via a sonic-host-services agent). The server exchanges it for an + // ACR access token at pull time. No secret material crosses the RPC. + string identity_name = 1; + // Optional. ACR resource scope, e.g. "https://management.azure.com/.default". + string resource = 2; +} +``` + +### 3.2 PullResponse + +```proto +message PullResponse { + oneof event { + PullStarted started = 1; + PullProgress progress = 2; + PullResult result = 3; + } +} + +message PullStarted { + string manifest_digest = 1; // resolved sha256:… + uint64 total_bytes = 2; // sum of selected-layer sizes + uint32 layer_count = 3; +} + +message PullProgress { + uint64 bytes_transferred = 1; + uint64 total_bytes = 2; + // Server SHOULD emit a PullProgress at most once per second to avoid + // overwhelming slow clients. +} + +message PullResult { + // Opaque handle. Stable across server restarts; used by List/Delete and + // passed to downstream installers. + string artifact_id = 1; + + string manifest_digest = 2; + + // Per-layer breakdown of what actually landed on disk. + repeated StoredLayer layers = 3; + + uint64 bytes_written = 4; + google.protobuf.Duration elapsed = 5; +} + +message StoredLayer { + string media_type = 1; + string digest = 2; // sha256:… + uint64 size = 3; + // Absolute path on target. Caller MUST treat this as read-only — the + // server owns the file's lifetime via Delete. + string local_path = 4; +} +``` + +### 3.3 List / Delete + +```proto +message ListRequest { string repository_filter = 1; } // glob, optional +message ListResponse { + repeated StoredArtifact artifacts = 1; + uint64 total_used_bytes = 2; + uint64 disk_free_bytes = 3; +} +message StoredArtifact { + string artifact_id = 1; + string registry = 2; + string repository = 3; + string tag = 4; // may be empty if pulled by digest + string manifest_digest = 5; + repeated StoredLayer layers = 6; + google.protobuf.Timestamp pulled_at = 7; +} + +message DeleteRequest { string artifact_id = 1; } +message DeleteResponse {} +``` + +## 4. Server behavior + +### 4.1 Staging layout + +``` +/host/oras/ # configurable; chosen to survive image upgrades +├── blobs/sha256/ # content-addressed, dedup across pulls +└── refs// # one dir per pull + ├── manifest.json # the original OCI manifest + └── layers/- # symlink (or hardlink) into ../../blobs +``` + +- `artifact_id` is a UUIDv7 generated at pull time. Stable across reboots. +- Content addressing means two pulls of the same digest only consume disk once, + even if the manifest is referenced under different tags / artifact_ids. +- Garbage-collecting blobs after a `Delete` requires a refcount check — every + blob must be referenced by at least one ref dir, else delete the blob. + +### 4.2 Concurrency + +- **One in-flight `Pull` per `(registry, repository, manifest_digest)`**. A + second concurrent Pull for the same target returns + `FAILED_PRECONDITION` with a message naming the in-flight artifact_id. +- Pulls of different artifacts proceed in parallel, bounded by a configurable + global semaphore (default 2) to avoid saturating the mgmt link. + +### 4.3 Cancellation + +- Client closes the stream → server cancels the in-flight ORAS pull, deletes + the partial ref directory, leaves the blobs store untouched (blobs are + always written to a `.tmp` suffix and renamed on completion). +- Server-side timeout (configurable, default 30 min) terminates orphaned pulls + the same way. + +### 4.4 Failure modes & status codes + +| Condition | gRPC status | +| -------------------------------------------- | -------------------- | +| Missing/invalid request fields | `INVALID_ARGUMENT` | +| Auth rejected by registry | `UNAUTHENTICATED` | +| Manifest digest mismatch (`expected_*`) | `FAILED_PRECONDITION`| +| Concurrent Pull for same artifact | `FAILED_PRECONDITION`| +| Registry unreachable (DNS/TCP/timeout) | `UNAVAILABLE` | +| Disk full / quota exceeded | `RESOURCE_EXHAUSTED` | +| Digest verification fails after download | `DATA_LOSS` | +| Client cancels | `CANCELLED` | +| Anything else | `INTERNAL` | + +## 5. Authentication tiers + +Three deployment tiers, in order of preference: + +1. **AAD workload identity (preferred).** Device runs a host agent that holds + a federated credential mapped to an AAD app with `AcrPull` on the target + ACR. RPC names the identity (`identity_name`); no secret material crosses + the wire. KubeSonic provisions one identity per fleet. + +2. **Bearer token.** Orchestrator acquires the token, passes it in + `BearerAuth`. Token expires quickly so leak blast radius is small. + +3. **Basic (ACR admin user).** Only for bootstrapping and lab work. Logged as + a warning. Plan to remove from the public API once tiers 1 & 2 are in + place across the fleet. + +mTLS on the gNMI channel itself is unchanged — same client cert as every other +gNMI RPC. + +## 6. AuthZ + +Reuse the existing gNMI authz hooks. New permission node: + +``` +sonic.gnoi.oras.Pull +sonic.gnoi.oras.List +sonic.gnoi.oras.Delete +``` + +`List` should be readable by ops/observability roles; `Pull` and `Delete` +require an explicit "image-mgmt" role. + +## 7. Open questions + +1. **Staging path policy.** `/host/oras/` survives image upgrades on a default + SONiC install, but on platforms with a small `/host` partition this can be + a problem. Should the path be discoverable via gNMI (e.g. as a separate + `Status` RPC), or platform-configured in `device_metadata`? + +2. **OS install integration.** Do we extend `gnoi.os.Install` to optionally + take a `(registry, repository, digest)` and call our Pull internally, or + keep them fully decoupled and require orchestrators to issue two RPCs? + Leaning toward the latter for separation of concerns, but it's worth + benchmarking the call-site complexity. + +3. **Manifest schema validation.** Should the server enforce a SONiC-specific + `artifactType` (e.g. `application/vnd.sonic.os-image.v1`) on Pull, or + accept any manifest and let the caller decide via `media_type_filter`? + Current draft does the latter. + +4. **Push back: do we even need List/Delete on the device, or should + inventory live in the control plane?** Argument for keeping them on-device: + reboots and split-brain. Argument against: every switch becomes a tiny + registry. Default position: keep them, they're cheap. + +## 8. Out-of-scope follow-ups + +- An `ImageStatus` / `ImageHealth` RPC reporting which staged artifacts are + currently in use by the running image, candidate slot, container, etc. +- A `Prefetch` daemon on the device that subscribes to a control-plane stream + of "expected next image" hints and pulls in the background. +- A signed-manifest verification step (cosign / notary). + +## 9. References + +- openconfig/gnoi: + - `file/file.proto` — `TransferToRemote`, `Put`, `Get`. + - `system/system.proto` — `SetPackage`. + - `common/common.proto` — `RemoteDownload`. + - `containerz/containerz.proto` — streaming `Deploy` pattern. +- ORAS: +- OCI image spec: +- ADO Feature #37984064 (internal). From e843d858e3262ecdee83156bb51f790f496474f7 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Fri, 29 May 2026 21:27:31 -0500 Subject: [PATCH 02/14] doc: correct framing of SONiC TransferToRemote MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit SONiC's TransferToRemote actually performs a download (HTTP GET into local_path), not an upload as upstream openconfig defines. Update §1 to describe the real current state and enumerate the concrete limitations that block its use for ACR/ORAS. Signed-off-by: Dawei Huang --- doc/oras-pull-design.md | 40 +++++++++++++++++++++++----------------- 1 file changed, 23 insertions(+), 17 deletions(-) diff --git a/doc/oras-pull-design.md b/doc/oras-pull-design.md index c3c63b8d4..c1bec2bd0 100644 --- a/doc/oras-pull-design.md +++ b/doc/oras-pull-design.md @@ -13,25 +13,31 @@ from a registry to local disk**, so that a subsequent install step (`gnoi.os.Install`, package update, container image swap, …) can run against a known-good local copy. -Today there is no gNMI/gNOI RPC that does this. The two superficially similar -options don't fit: - -| RPC | Direction | Why it doesn't fit ORAS | -| ------------------------------------ | --------------- | ------------------------------------------------------------------------------------------------------------ | -| `gnoi.file.TransferToRemote` | target → remote | Upload, not download. Wrong direction. | -| `gnoi.system.SetPackage` | client → target | Client must stream the bytes itself, or supply a `RemoteDownload` (HTTP/SFTP/SCP/HTTPS). No registry semantics — can't address `repository:tag`, doesn't understand manifests, layers, digests, or registry auth flows. | -| `gnoi.containerz.Deploy` | client → target | Client-streamed only. No "fetch this from a registry" mode. | +Today the closest thing is SONiC's `gnoi.file.TransferToRemote`. Important +detail: although the upstream openconfig spec defines `TransferToRemote` as +**upload** (target → remote URL), the SONiC implementation at +`pkg/gnoi/file/file.go` actually performs a **download** — it HTTP GETs +`remote_download.path` and writes the bytes into `local_path`. The proto +message is reused but the semantics are inverted. That works for fetching +images via a plain HTTP URL, and is what's in use today. + +It does **not** work for OCI/ORAS artifacts, which is what an ACR-backed +deployment needs. Specifically: + +| Limitation of the current `TransferToRemote` path | Why it blocks ACR/ORAS | +| ---------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- | +| Hard-coded `RemoteDownload_HTTP` only (`file.go:111`) — `HTTPS`, `SFTP`, `SCP` return `Unimplemented`. | ACR is HTTPS-only. | +| `RemoteDownload.path` is a single URL. | OCI requires resolving `registry/repository:tag` → manifest → layer digests. Not a single URL. | +| `RemoteDownload.credentials` is `{username, cleartext_password}` only. | ACR auth tiers: anonymous, basic admin, bearer token, AAD workload identity. Bearer/AAD don't fit. | +| No manifest / layer awareness in the response (just an MD5 hash of the single downloaded blob). | Caller can't tell which layer is the `.bin`, can't verify per-layer digests, can't deduplicate by manifest digest. | +| Allowlist hard-codes `/tmp`, `/var/tmp`, `/host` (`file.go:208`); 4 GB max; 5-minute timeout. | OS images > 4 GB exist (DPU bundles); ORAS-fetched artifacts need a managed staging area, not a free-form path. | +| No streaming progress; unary RPC blocks for the duration of the download. | Pulls can take many minutes on slow links; orchestrators need progress + cancellation. | +| Semantics of "TransferToRemote = download" is itself a footgun — the name lies. | A clean new RPC avoids continuing to overload a confusingly-named method. | We deliberately **do not** try to extend `RemoteDownload` with a new -`Protocol.ORAS` enum. OCI/ORAS is a richer model than a single -URL-plus-credentials blob: - -- Artifacts have a manifest, a manifest digest, and one or more layers with - per-layer media types and digests. -- Registry auth is non-trivial: anonymous, basic (ACR admin user), bearer - (pre-acquired token), or AAD workload identity federated to the device. -- We want digest-based idempotency, per-layer filtering, and per-layer staging - paths surfaced back to the caller. `RemoteDownload` can't carry any of that. +`Protocol.ORAS` enum, for the same reasons — its schema is too thin +(single URL + flat creds) to carry registry/repo/tag-or-digest, manifests, +multiple layers, or AAD workload-identity auth. ## 2. Goals & non-goals From 9ea8cf98b33f91dd50404f9eea1a755fdec0b73e Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Fri, 29 May 2026 21:36:14 -0500 Subject: [PATCH 03/14] proto: add sonic.gnoi.oras.v1.Oras service definition PoC subset of the ORAS Pull design (doc/oras-pull-design.md): a single streaming Pull RPC with anonymous + basic auth and an optional http_proxy field. List/Delete and richer features are deferred. Generated oras.pb.go is checked in following the existing precedent (proto/sonic.pb.go, proto/gnoi/sonic_debug.pb.go). Makefile wires the new binding into PROTO_GO_BINDINGS so make can regenerate it. Signed-off-by: Dawei Huang --- Makefile | 1 + proto/gnoi/oras/oras.pb.go | 1049 ++++++++++++++++++++++++++++++++++++ proto/gnoi/oras/oras.proto | 124 +++++ 3 files changed, 1174 insertions(+) create mode 100644 proto/gnoi/oras/oras.pb.go create mode 100644 proto/gnoi/oras/oras.proto diff --git a/Makefile b/Makefile index 81554755d..4daa82c71 100644 --- a/Makefile +++ b/Makefile @@ -172,6 +172,7 @@ PROTOC_OPTS_WITHOUT_VENDOR := -I/usr/local/include -I/usr/include # Generate following go & grpc bindings using teh legacy protoc-gen-go PROTO_GO_BINDINGS += proto/sonic_internal.pb.go PROTO_GO_BINDINGS += proto/gnoi/sonic_debug.pb.go +PROTO_GO_BINDINGS += proto/gnoi/oras/oras.pb.go $(BUILD_GNOI_YANG_PROTO_DIR)/.proto_api_done: $(API_YANGS) @echo "+++++ Generating PROTOBUF files for API Yang modules; +++++" diff --git a/proto/gnoi/oras/oras.pb.go b/proto/gnoi/oras/oras.pb.go new file mode 100644 index 000000000..b741b5992 --- /dev/null +++ b/proto/gnoi/oras/oras.pb.go @@ -0,0 +1,1049 @@ +// +// Copyright 2026 Microsoft Corp. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// + +// This file defines a SONiC gNOI service that pulls OCI/ORAS artifacts +// (e.g. SONiC OS images stored in an Azure Container Registry) from a remote +// registry into local storage on the target. See doc/oras-pull-design.md for +// the full design. +// +// This is the PoC subset: a single Pull RPC, anonymous + basic auth, single +// layer artifacts written to local_path. List/Delete and richer features are +// tracked in the design doc. + +// Code generated by protoc-gen-go. DO NOT EDIT. +// versions: +// protoc-gen-go v1.33.0 +// protoc v3.21.12 +// source: oras.proto + +package oras + +import ( + context "context" + _ "github.com/openconfig/gnoi/types" + grpc "google.golang.org/grpc" + codes "google.golang.org/grpc/codes" + status "google.golang.org/grpc/status" + protoreflect "google.golang.org/protobuf/reflect/protoreflect" + protoimpl "google.golang.org/protobuf/runtime/protoimpl" + durationpb "google.golang.org/protobuf/types/known/durationpb" + reflect "reflect" + sync "sync" +) + +const ( + // Verify that this generated code is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion) + // Verify that runtime/protoimpl is sufficiently up-to-date. + _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20) +) + +type PullRequest struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // Required. Registry hostname, e.g. "ksdatatest.azurecr.io". + Registry string `protobuf:"bytes,1,opt,name=registry,proto3" json:"registry,omitempty"` + // Required. Repository within the registry, e.g. "sonic-os-images". + Repository string `protobuf:"bytes,2,opt,name=repository,proto3" json:"repository,omitempty"` + // Required. Exactly one of tag/digest must be set. + // + // Types that are assignable to Reference: + // + // *PullRequest_Tag + // *PullRequest_Digest + Reference isPullRequest_Reference `protobuf_oneof:"reference"` + // Required. Absolute path on the target where the artifact's single layer + // will be written. Must be under the file-server allowlist (currently + // /tmp/, /var/tmp/, /host/). Overwritten if it already exists. + LocalPath string `protobuf:"bytes,5,opt,name=local_path,json=localPath,proto3" json:"local_path,omitempty"` + // Auth for the pull. Unset == anonymous. + Auth *AuthConfig `protobuf:"bytes,6,opt,name=auth,proto3" json:"auth,omitempty"` + // Optional. HTTP(S) proxy used for the pull, e.g. "http://10.250.0.1:8888". + // Required on testbeds where the registry is not reachable via the + // device's default route. + HttpProxy string `protobuf:"bytes,7,opt,name=http_proxy,json=httpProxy,proto3" json:"http_proxy,omitempty"` +} + +func (x *PullRequest) Reset() { + *x = PullRequest{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[0] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *PullRequest) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PullRequest) ProtoMessage() {} + +func (x *PullRequest) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[0] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PullRequest.ProtoReflect.Descriptor instead. +func (*PullRequest) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{0} +} + +func (x *PullRequest) GetRegistry() string { + if x != nil { + return x.Registry + } + return "" +} + +func (x *PullRequest) GetRepository() string { + if x != nil { + return x.Repository + } + return "" +} + +func (m *PullRequest) GetReference() isPullRequest_Reference { + if m != nil { + return m.Reference + } + return nil +} + +func (x *PullRequest) GetTag() string { + if x, ok := x.GetReference().(*PullRequest_Tag); ok { + return x.Tag + } + return "" +} + +func (x *PullRequest) GetDigest() string { + if x, ok := x.GetReference().(*PullRequest_Digest); ok { + return x.Digest + } + return "" +} + +func (x *PullRequest) GetLocalPath() string { + if x != nil { + return x.LocalPath + } + return "" +} + +func (x *PullRequest) GetAuth() *AuthConfig { + if x != nil { + return x.Auth + } + return nil +} + +func (x *PullRequest) GetHttpProxy() string { + if x != nil { + return x.HttpProxy + } + return "" +} + +type isPullRequest_Reference interface { + isPullRequest_Reference() +} + +type PullRequest_Tag struct { + Tag string `protobuf:"bytes,3,opt,name=tag,proto3,oneof"` // e.g. "20230531.46" +} + +type PullRequest_Digest struct { + Digest string `protobuf:"bytes,4,opt,name=digest,proto3,oneof"` // e.g. "sha256:6f0923e8…" +} + +func (*PullRequest_Tag) isPullRequest_Reference() {} + +func (*PullRequest_Digest) isPullRequest_Reference() {} + +type AuthConfig struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // Types that are assignable to Mode: + // + // *AuthConfig_Anonymous + // *AuthConfig_Basic + Mode isAuthConfig_Mode `protobuf_oneof:"mode"` +} + +func (x *AuthConfig) Reset() { + *x = AuthConfig{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[1] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *AuthConfig) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*AuthConfig) ProtoMessage() {} + +func (x *AuthConfig) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[1] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use AuthConfig.ProtoReflect.Descriptor instead. +func (*AuthConfig) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{1} +} + +func (m *AuthConfig) GetMode() isAuthConfig_Mode { + if m != nil { + return m.Mode + } + return nil +} + +func (x *AuthConfig) GetAnonymous() *Anonymous { + if x, ok := x.GetMode().(*AuthConfig_Anonymous); ok { + return x.Anonymous + } + return nil +} + +func (x *AuthConfig) GetBasic() *BasicAuth { + if x, ok := x.GetMode().(*AuthConfig_Basic); ok { + return x.Basic + } + return nil +} + +type isAuthConfig_Mode interface { + isAuthConfig_Mode() +} + +type AuthConfig_Anonymous struct { + // Empty marker for explicit anonymous (otherwise distinguished from + // "field not set" by oneof semantics). + Anonymous *Anonymous `protobuf:"bytes,1,opt,name=anonymous,proto3,oneof"` +} + +type AuthConfig_Basic struct { + Basic *BasicAuth `protobuf:"bytes,2,opt,name=basic,proto3,oneof"` +} + +func (*AuthConfig_Anonymous) isAuthConfig_Mode() {} + +func (*AuthConfig_Basic) isAuthConfig_Mode() {} + +type Anonymous struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields +} + +func (x *Anonymous) Reset() { + *x = Anonymous{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[2] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *Anonymous) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*Anonymous) ProtoMessage() {} + +func (x *Anonymous) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[2] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use Anonymous.ProtoReflect.Descriptor instead. +func (*Anonymous) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{2} +} + +type BasicAuth struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + Username string `protobuf:"bytes,1,opt,name=username,proto3" json:"username,omitempty"` + Password string `protobuf:"bytes,2,opt,name=password,proto3" json:"password,omitempty"` +} + +func (x *BasicAuth) Reset() { + *x = BasicAuth{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[3] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *BasicAuth) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*BasicAuth) ProtoMessage() {} + +func (x *BasicAuth) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[3] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use BasicAuth.ProtoReflect.Descriptor instead. +func (*BasicAuth) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{3} +} + +func (x *BasicAuth) GetUsername() string { + if x != nil { + return x.Username + } + return "" +} + +func (x *BasicAuth) GetPassword() string { + if x != nil { + return x.Password + } + return "" +} + +type PullResponse struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // Types that are assignable to Event: + // + // *PullResponse_Started + // *PullResponse_Progress + // *PullResponse_Result + Event isPullResponse_Event `protobuf_oneof:"event"` +} + +func (x *PullResponse) Reset() { + *x = PullResponse{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[4] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *PullResponse) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PullResponse) ProtoMessage() {} + +func (x *PullResponse) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[4] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PullResponse.ProtoReflect.Descriptor instead. +func (*PullResponse) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{4} +} + +func (m *PullResponse) GetEvent() isPullResponse_Event { + if m != nil { + return m.Event + } + return nil +} + +func (x *PullResponse) GetStarted() *PullStarted { + if x, ok := x.GetEvent().(*PullResponse_Started); ok { + return x.Started + } + return nil +} + +func (x *PullResponse) GetProgress() *PullProgress { + if x, ok := x.GetEvent().(*PullResponse_Progress); ok { + return x.Progress + } + return nil +} + +func (x *PullResponse) GetResult() *PullResult { + if x, ok := x.GetEvent().(*PullResponse_Result); ok { + return x.Result + } + return nil +} + +type isPullResponse_Event interface { + isPullResponse_Event() +} + +type PullResponse_Started struct { + Started *PullStarted `protobuf:"bytes,1,opt,name=started,proto3,oneof"` +} + +type PullResponse_Progress struct { + Progress *PullProgress `protobuf:"bytes,2,opt,name=progress,proto3,oneof"` +} + +type PullResponse_Result struct { + Result *PullResult `protobuf:"bytes,3,opt,name=result,proto3,oneof"` +} + +func (*PullResponse_Started) isPullResponse_Event() {} + +func (*PullResponse_Progress) isPullResponse_Event() {} + +func (*PullResponse_Result) isPullResponse_Event() {} + +type PullStarted struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // Resolved manifest digest, even if the request used a tag. + ManifestDigest string `protobuf:"bytes,1,opt,name=manifest_digest,json=manifestDigest,proto3" json:"manifest_digest,omitempty"` + // Total bytes the server expects to transfer (size of the selected layer). + TotalBytes uint64 `protobuf:"varint,2,opt,name=total_bytes,json=totalBytes,proto3" json:"total_bytes,omitempty"` +} + +func (x *PullStarted) Reset() { + *x = PullStarted{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[5] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *PullStarted) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PullStarted) ProtoMessage() {} + +func (x *PullStarted) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[5] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PullStarted.ProtoReflect.Descriptor instead. +func (*PullStarted) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{5} +} + +func (x *PullStarted) GetManifestDigest() string { + if x != nil { + return x.ManifestDigest + } + return "" +} + +func (x *PullStarted) GetTotalBytes() uint64 { + if x != nil { + return x.TotalBytes + } + return 0 +} + +type PullProgress struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + BytesTransferred uint64 `protobuf:"varint,1,opt,name=bytes_transferred,json=bytesTransferred,proto3" json:"bytes_transferred,omitempty"` + TotalBytes uint64 `protobuf:"varint,2,opt,name=total_bytes,json=totalBytes,proto3" json:"total_bytes,omitempty"` +} + +func (x *PullProgress) Reset() { + *x = PullProgress{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[6] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *PullProgress) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PullProgress) ProtoMessage() {} + +func (x *PullProgress) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[6] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PullProgress.ProtoReflect.Descriptor instead. +func (*PullProgress) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{6} +} + +func (x *PullProgress) GetBytesTransferred() uint64 { + if x != nil { + return x.BytesTransferred + } + return 0 +} + +func (x *PullProgress) GetTotalBytes() uint64 { + if x != nil { + return x.TotalBytes + } + return 0 +} + +type PullResult struct { + state protoimpl.MessageState + sizeCache protoimpl.SizeCache + unknownFields protoimpl.UnknownFields + + // Resolved manifest digest. + ManifestDigest string `protobuf:"bytes,1,opt,name=manifest_digest,json=manifestDigest,proto3" json:"manifest_digest,omitempty"` + // Digest of the layer that was written. + LayerDigest string `protobuf:"bytes,2,opt,name=layer_digest,json=layerDigest,proto3" json:"layer_digest,omitempty"` + // Size in bytes of the layer that was written. + BytesWritten uint64 `protobuf:"varint,3,opt,name=bytes_written,json=bytesWritten,proto3" json:"bytes_written,omitempty"` + // Absolute path on the target where the layer was written. Equal to + // PullRequest.local_path. + LocalPath string `protobuf:"bytes,4,opt,name=local_path,json=localPath,proto3" json:"local_path,omitempty"` + // Wall-clock time from PullStarted to PullResult. + Elapsed *durationpb.Duration `protobuf:"bytes,5,opt,name=elapsed,proto3" json:"elapsed,omitempty"` +} + +func (x *PullResult) Reset() { + *x = PullResult{} + if protoimpl.UnsafeEnabled { + mi := &file_oras_proto_msgTypes[7] + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + ms.StoreMessageInfo(mi) + } +} + +func (x *PullResult) String() string { + return protoimpl.X.MessageStringOf(x) +} + +func (*PullResult) ProtoMessage() {} + +func (x *PullResult) ProtoReflect() protoreflect.Message { + mi := &file_oras_proto_msgTypes[7] + if protoimpl.UnsafeEnabled && x != nil { + ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) + if ms.LoadMessageInfo() == nil { + ms.StoreMessageInfo(mi) + } + return ms + } + return mi.MessageOf(x) +} + +// Deprecated: Use PullResult.ProtoReflect.Descriptor instead. +func (*PullResult) Descriptor() ([]byte, []int) { + return file_oras_proto_rawDescGZIP(), []int{7} +} + +func (x *PullResult) GetManifestDigest() string { + if x != nil { + return x.ManifestDigest + } + return "" +} + +func (x *PullResult) GetLayerDigest() string { + if x != nil { + return x.LayerDigest + } + return "" +} + +func (x *PullResult) GetBytesWritten() uint64 { + if x != nil { + return x.BytesWritten + } + return 0 +} + +func (x *PullResult) GetLocalPath() string { + if x != nil { + return x.LocalPath + } + return "" +} + +func (x *PullResult) GetElapsed() *durationpb.Duration { + if x != nil { + return x.Elapsed + } + return nil +} + +var File_oras_proto protoreflect.FileDescriptor + +var file_oras_proto_rawDesc = []byte{ + 0x0a, 0x0a, 0x6f, 0x72, 0x61, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x12, 0x73, 0x6f, + 0x6e, 0x69, 0x63, 0x2e, 0x67, 0x6e, 0x6f, 0x69, 0x2e, 0x6f, 0x72, 0x61, 0x73, 0x2e, 0x76, 0x31, + 0x1a, 0x2c, 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protoimpl.X.CompressGZIP(file_oras_proto_rawDescData) + }) + return file_oras_proto_rawDescData +} + +var file_oras_proto_msgTypes = make([]protoimpl.MessageInfo, 8) +var file_oras_proto_goTypes = []interface{}{ + (*PullRequest)(nil), // 0: sonic.gnoi.oras.v1.PullRequest + (*AuthConfig)(nil), // 1: sonic.gnoi.oras.v1.AuthConfig + (*Anonymous)(nil), // 2: sonic.gnoi.oras.v1.Anonymous + (*BasicAuth)(nil), // 3: sonic.gnoi.oras.v1.BasicAuth + (*PullResponse)(nil), // 4: sonic.gnoi.oras.v1.PullResponse + (*PullStarted)(nil), // 5: sonic.gnoi.oras.v1.PullStarted + (*PullProgress)(nil), // 6: sonic.gnoi.oras.v1.PullProgress + (*PullResult)(nil), // 7: sonic.gnoi.oras.v1.PullResult + (*durationpb.Duration)(nil), // 8: google.protobuf.Duration +} +var file_oras_proto_depIdxs = []int32{ + 1, // 0: sonic.gnoi.oras.v1.PullRequest.auth:type_name -> sonic.gnoi.oras.v1.AuthConfig + 2, // 1: sonic.gnoi.oras.v1.AuthConfig.anonymous:type_name -> sonic.gnoi.oras.v1.Anonymous + 3, // 2: sonic.gnoi.oras.v1.AuthConfig.basic:type_name -> sonic.gnoi.oras.v1.BasicAuth + 5, // 3: sonic.gnoi.oras.v1.PullResponse.started:type_name -> sonic.gnoi.oras.v1.PullStarted + 6, // 4: sonic.gnoi.oras.v1.PullResponse.progress:type_name -> sonic.gnoi.oras.v1.PullProgress + 7, // 5: sonic.gnoi.oras.v1.PullResponse.result:type_name -> sonic.gnoi.oras.v1.PullResult + 8, // 6: sonic.gnoi.oras.v1.PullResult.elapsed:type_name -> google.protobuf.Duration + 0, // 7: sonic.gnoi.oras.v1.Oras.Pull:input_type -> sonic.gnoi.oras.v1.PullRequest + 4, // 8: sonic.gnoi.oras.v1.Oras.Pull:output_type -> sonic.gnoi.oras.v1.PullResponse + 8, // [8:9] is the sub-list for method output_type + 7, // [7:8] is the sub-list for method input_type + 7, // [7:7] is the sub-list for extension type_name + 7, // [7:7] is the sub-list for extension extendee + 0, // [0:7] is the sub-list for field type_name +} + +func init() { file_oras_proto_init() } +func file_oras_proto_init() { + if File_oras_proto != nil { + return + } + if !protoimpl.UnsafeEnabled { + file_oras_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*PullRequest); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_oras_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*AuthConfig); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_oras_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*Anonymous); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_oras_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*BasicAuth); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_oras_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*PullResponse); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_oras_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*PullStarted); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_oras_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*PullProgress); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + file_oras_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} { + switch v := v.(*PullResult); i { + case 0: + return &v.state + case 1: + return &v.sizeCache + case 2: + return &v.unknownFields + default: + return nil + } + } + } + file_oras_proto_msgTypes[0].OneofWrappers = []interface{}{ + (*PullRequest_Tag)(nil), + (*PullRequest_Digest)(nil), + } + file_oras_proto_msgTypes[1].OneofWrappers = []interface{}{ + (*AuthConfig_Anonymous)(nil), + (*AuthConfig_Basic)(nil), + } + file_oras_proto_msgTypes[4].OneofWrappers = []interface{}{ + (*PullResponse_Started)(nil), + (*PullResponse_Progress)(nil), + (*PullResponse_Result)(nil), + } + type x struct{} + out := protoimpl.TypeBuilder{ + File: protoimpl.DescBuilder{ + GoPackagePath: reflect.TypeOf(x{}).PkgPath(), + RawDescriptor: file_oras_proto_rawDesc, + NumEnums: 0, + NumMessages: 8, + NumExtensions: 0, + NumServices: 1, + }, + GoTypes: file_oras_proto_goTypes, + DependencyIndexes: file_oras_proto_depIdxs, + MessageInfos: file_oras_proto_msgTypes, + }.Build() + File_oras_proto = out.File + file_oras_proto_rawDesc = nil + file_oras_proto_goTypes = nil + file_oras_proto_depIdxs = nil +} + +// Reference imports to suppress errors if they are not otherwise used. +var _ context.Context +var _ grpc.ClientConnInterface + +// This is a compile-time assertion to ensure that this generated file +// is compatible with the grpc package it is being compiled against. +const _ = grpc.SupportPackageIsVersion6 + +// OrasClient is the client API for Oras service. +// +// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream. +type OrasClient interface { + // Pull fetches an OCI/ORAS artifact from a registry into a local file on + // the target. The response stream emits a single PullStarted message once + // the manifest is resolved, zero or more PullProgress messages while bytes + // are being transferred, and a final PullResult on success. + // + // Errors (gRPC status codes): + // + // InvalidArgument: missing required fields, unsupported layer count + // for the PoC (must be exactly one). + // Unauthenticated: registry rejected the supplied credentials. + // FailedPrecondition: resolved manifest digest mismatch or destination + // path outside the allowlist. + // Unavailable: registry unreachable (DNS/TCP/timeout). + // ResourceExhausted: disk full while writing. + // DataLoss: digest verification failed after download. + // Internal: anything else. + Pull(ctx context.Context, in *PullRequest, opts ...grpc.CallOption) (Oras_PullClient, error) +} + +type orasClient struct { + cc grpc.ClientConnInterface +} + +func NewOrasClient(cc grpc.ClientConnInterface) OrasClient { + return &orasClient{cc} +} + +func (c *orasClient) Pull(ctx context.Context, in *PullRequest, opts ...grpc.CallOption) (Oras_PullClient, error) { + stream, err := c.cc.NewStream(ctx, &_Oras_serviceDesc.Streams[0], "/sonic.gnoi.oras.v1.Oras/Pull", opts...) + if err != nil { + return nil, err + } + x := &orasPullClient{stream} + if err := x.ClientStream.SendMsg(in); err != nil { + return nil, err + } + if err := x.ClientStream.CloseSend(); err != nil { + return nil, err + } + return x, nil +} + +type Oras_PullClient interface { + Recv() (*PullResponse, error) + grpc.ClientStream +} + +type orasPullClient struct { + grpc.ClientStream +} + +func (x *orasPullClient) Recv() (*PullResponse, error) { + m := new(PullResponse) + if err := x.ClientStream.RecvMsg(m); err != nil { + return nil, err + } + return m, nil +} + +// OrasServer is the server API for Oras service. +type OrasServer interface { + // Pull fetches an OCI/ORAS artifact from a registry into a local file on + // the target. The response stream emits a single PullStarted message once + // the manifest is resolved, zero or more PullProgress messages while bytes + // are being transferred, and a final PullResult on success. + // + // Errors (gRPC status codes): + // + // InvalidArgument: missing required fields, unsupported layer count + // for the PoC (must be exactly one). + // Unauthenticated: registry rejected the supplied credentials. + // FailedPrecondition: resolved manifest digest mismatch or destination + // path outside the allowlist. + // Unavailable: registry unreachable (DNS/TCP/timeout). + // ResourceExhausted: disk full while writing. + // DataLoss: digest verification failed after download. + // Internal: anything else. + Pull(*PullRequest, Oras_PullServer) error +} + +// UnimplementedOrasServer can be embedded to have forward compatible implementations. +type UnimplementedOrasServer struct { +} + +func (*UnimplementedOrasServer) Pull(*PullRequest, Oras_PullServer) error { + return status.Errorf(codes.Unimplemented, "method Pull not implemented") +} + +func RegisterOrasServer(s *grpc.Server, srv OrasServer) { + s.RegisterService(&_Oras_serviceDesc, srv) +} + +func _Oras_Pull_Handler(srv interface{}, stream grpc.ServerStream) error { + m := new(PullRequest) + if err := stream.RecvMsg(m); err != nil { + return err + } + return srv.(OrasServer).Pull(m, &orasPullServer{stream}) +} + +type Oras_PullServer interface { + Send(*PullResponse) error + grpc.ServerStream +} + +type orasPullServer struct { + grpc.ServerStream +} + +func (x *orasPullServer) Send(m *PullResponse) error { + return x.ServerStream.SendMsg(m) +} + +var _Oras_serviceDesc = grpc.ServiceDesc{ + ServiceName: "sonic.gnoi.oras.v1.Oras", + HandlerType: (*OrasServer)(nil), + Methods: []grpc.MethodDesc{}, + Streams: []grpc.StreamDesc{ + { + StreamName: "Pull", + Handler: _Oras_Pull_Handler, + ServerStreams: true, + }, + }, + Metadata: "oras.proto", +} diff --git a/proto/gnoi/oras/oras.proto b/proto/gnoi/oras/oras.proto new file mode 100644 index 000000000..2e7a30a7b --- /dev/null +++ b/proto/gnoi/oras/oras.proto @@ -0,0 +1,124 @@ +// +// Copyright 2026 Microsoft Corp. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// + +// This file defines a SONiC gNOI service that pulls OCI/ORAS artifacts +// (e.g. SONiC OS images stored in an Azure Container Registry) from a remote +// registry into local storage on the target. See doc/oras-pull-design.md for +// the full design. +// +// This is the PoC subset: a single Pull RPC, anonymous + basic auth, single +// layer artifacts written to local_path. List/Delete and richer features are +// tracked in the design doc. +syntax = "proto3"; + +package sonic.gnoi.oras.v1; + +import "github.com/openconfig/gnoi/types/types.proto"; +import "google/protobuf/duration.proto"; + +option go_package = "./;oras"; + +option (.gnoi.types.gnoi_version) = "0.1.0"; + +service Oras { + // Pull fetches an OCI/ORAS artifact from a registry into a local file on + // the target. The response stream emits a single PullStarted message once + // the manifest is resolved, zero or more PullProgress messages while bytes + // are being transferred, and a final PullResult on success. + // + // Errors (gRPC status codes): + // InvalidArgument: missing required fields, unsupported layer count + // for the PoC (must be exactly one). + // Unauthenticated: registry rejected the supplied credentials. + // FailedPrecondition: resolved manifest digest mismatch or destination + // path outside the allowlist. + // Unavailable: registry unreachable (DNS/TCP/timeout). + // ResourceExhausted: disk full while writing. + // DataLoss: digest verification failed after download. + // Internal: anything else. + rpc Pull(PullRequest) returns (stream PullResponse); +} + +message PullRequest { + // Required. Registry hostname, e.g. "ksdatatest.azurecr.io". + string registry = 1; + + // Required. Repository within the registry, e.g. "sonic-os-images". + string repository = 2; + + // Required. Exactly one of tag/digest must be set. + oneof reference { + string tag = 3; // e.g. "20230531.46" + string digest = 4; // e.g. "sha256:6f0923e8…" + } + + // Required. Absolute path on the target where the artifact's single layer + // will be written. Must be under the file-server allowlist (currently + // /tmp/, /var/tmp/, /host/). Overwritten if it already exists. + string local_path = 5; + + // Auth for the pull. Unset == anonymous. + AuthConfig auth = 6; + + // Optional. HTTP(S) proxy used for the pull, e.g. "http://10.250.0.1:8888". + // Required on testbeds where the registry is not reachable via the + // device's default route. + string http_proxy = 7; +} + +message AuthConfig { + oneof mode { + // Empty marker for explicit anonymous (otherwise distinguished from + // "field not set" by oneof semantics). + Anonymous anonymous = 1; + BasicAuth basic = 2; + } +} + +message Anonymous {} + +message BasicAuth { + string username = 1; + string password = 2; +} + +message PullResponse { + oneof event { + PullStarted started = 1; + PullProgress progress = 2; + PullResult result = 3; + } +} + +message PullStarted { + // Resolved manifest digest, even if the request used a tag. + string manifest_digest = 1; + // Total bytes the server expects to transfer (size of the selected layer). + uint64 total_bytes = 2; +} + +message PullProgress { + uint64 bytes_transferred = 1; + uint64 total_bytes = 2; +} + +message PullResult { + // Resolved manifest digest. + string manifest_digest = 1; + // Digest of the layer that was written. + string layer_digest = 2; + // Size in bytes of the layer that was written. + uint64 bytes_written = 3; + // Absolute path on the target where the layer was written. Equal to + // PullRequest.local_path. + string local_path = 4; + // Wall-clock time from PullStarted to PullResult. + google.protobuf.Duration elapsed = 5; +} From 96dd95647f80e6c11fe55a866f0cea476821ae6b Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Fri, 29 May 2026 21:40:20 -0500 Subject: [PATCH 04/14] pkg/gnoi/oras: implement Pull RPC Streaming server implementation of sonic.gnoi.oras.v1.Oras.Pull: * Resolves manifest by tag or digest against an OCI registry. * Requires single-layer artifacts (PoC scope per the design doc; SONiC OS images are single layer). * Stages the layer into a temp dir next to local_path and renames into place on success, so a failed pull never leaves a partial file at local_path. * Emits PullStarted once the manifest is resolved, PullProgress at most once per second, and a final PullResult with elapsed time and per-layer digest. * Reuses the file-server path allowlist (/tmp, /var/tmp, /host). * Supports anonymous and basic auth (ACR admin user); workload identity and bearer modes are stubbed out for v1. * http_proxy field plumbed into the HTTP transport so testbeds where the registry is not reachable via the default route (e.g. sonic-vs vlabs behind a host tinyproxy) can still pull. * Best-effort registry-error to gRPC status mapping. Adds oras.land/oras-go/v2 v2.6.0 and github.com/opencontainers/image-spec v1.1.1 to go.mod. Signed-off-by: Dawei Huang --- go.mod | 10 +- go.sum | 30 +++- pkg/gnoi/oras/json.go | 12 ++ pkg/gnoi/oras/oras.go | 349 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 396 insertions(+), 5 deletions(-) create mode 100644 pkg/gnoi/oras/json.go create mode 100644 pkg/gnoi/oras/oras.go diff --git a/go.mod b/go.mod index 04814db22..6ae0c9e2d 100644 --- a/go.mod +++ b/go.mod @@ -26,6 +26,7 @@ require ( github.com/openconfig/gnoi v0.3.0 github.com/openconfig/gnsi v1.9.0 github.com/openconfig/ygot v0.7.1 + github.com/opencontainers/image-spec v1.1.1 github.com/redis/go-redis/v9 v9.14.1 github.com/stretchr/testify v1.9.0 golang.org/x/crypto v0.36.0 @@ -36,6 +37,7 @@ require ( gopkg.in/yaml.v2 v2.3.0 gopkg.in/yaml.v3 v3.0.1 mvdan.cc/sh/v3 v3.8.0 + oras.land/oras-go/v2 v2.6.0 ) require ( @@ -45,20 +47,26 @@ require ( github.com/bgentry/speakeasy v0.1.0 // indirect github.com/cenkalti/backoff/v4 v4.0.0 // indirect github.com/cespare/xxhash/v2 v2.3.0 // indirect + github.com/cncf/xds/go v0.0.0-20240318125728-8a4994d93e50 // indirect github.com/davecgh/go-spew v1.1.1 // indirect github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect - github.com/go-redis/redis/v7 v7.0.0-beta.3.0.20190824101152-d19aba07b476 // indirect + github.com/envoyproxy/go-control-plane v0.12.0 // indirect + github.com/envoyproxy/protoc-gen-validate v1.0.4 // indirect + github.com/go-redis/redis/v7 v7.4.1 // indirect github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect github.com/openconfig/goyang v0.0.0-20200309174518-a00bece872fc // indirect + github.com/opencontainers/go-digest v1.0.0 // indirect github.com/philopon/go-toposort v0.0.0-20170620085441-9be86dbd762f // indirect github.com/pmezard/go-difflib v1.0.0 // indirect github.com/rogpeppe/go-internal v1.14.1 // indirect github.com/yuin/gopher-lua v1.1.1 // indirect go4.org/intern v0.0.0-20211027215823-ae77deb06f29 // indirect go4.org/unsafe/assume-no-moving-gc v0.0.0-20230525183740-e7c30c78aeb2 // indirect + golang.org/x/sync v0.14.0 // indirect golang.org/x/sys v0.33.0 // indirect golang.org/x/term v0.32.0 // indirect golang.org/x/text v0.23.0 // indirect + google.golang.org/genproto/googleapis/api v0.0.0-20240318140521-94a12d6c2237 // indirect google.golang.org/genproto/googleapis/rpc v0.0.0-20250106144421-5f5ef82da422 // indirect inet.af/netaddr v0.0.0-20230525184311-b8eac61e914a // indirect ) diff --git a/go.sum b/go.sum index 6e2eb37ec..86a20d9d8 100644 --- a/go.sum +++ b/go.sum @@ -1350,7 +1350,9 @@ github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kB github.com/boombuler/barcode v1.0.0/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8= github.com/boombuler/barcode v1.0.1/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8= github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs= +github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c= github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA= +github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0= github.com/c9s/goprocinfo v0.0.0-20191125144613-4acdd056c72d h1:MQGrhPHSxg08x+LKgQTOnnjfXt+p+128WCECqAYXJsU= github.com/c9s/goprocinfo v0.0.0-20191125144613-4acdd056c72d/go.mod h1:uEyr4WpAH4hio6LFriaPkL938XnrvLpNPmQHBdrmbIE= github.com/cenkalti/backoff/v4 v4.0.0 h1:6VeaLF9aI+MAUQ95106HwWzYZgJJpZ4stumjj6RFYAU= @@ -1379,6 +1381,7 @@ github.com/cncf/xds/go v0.0.0-20230310173818-32f1caf87195/go.mod h1:eXthEFrGJvWH github.com/cncf/xds/go v0.0.0-20230428030218-4003588d1b74/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= github.com/cncf/xds/go v0.0.0-20230607035331-e9ce68804cb4/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= github.com/cncf/xds/go v0.0.0-20231109132714-523115ebc101/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs= +github.com/cncf/xds/go v0.0.0-20240318125728-8a4994d93e50 h1:DBmgJDC9dTfkVyGgipamEh2BpGYxScCH1TOF1LL1cXc= github.com/cncf/xds/go v0.0.0-20240318125728-8a4994d93e50/go.mod h1:5e1+Vvlzido69INQaVO6d87Qn543Xr6nooe9Kz7oBFM= github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= @@ -1397,6 +1400,7 @@ github.com/envoyproxy/go-control-plane v0.10.3/go.mod h1:fJJn/j26vwOu972OllsvAgJ github.com/envoyproxy/go-control-plane v0.11.0/go.mod h1:VnHyVMpzcLvCFt9yUz1UnCwHLhwx1WguiVDV7pTG/tI= github.com/envoyproxy/go-control-plane v0.11.1-0.20230524094728-9239064ad72f/go.mod h1:sfYdkwUW4BA3PbKjySwjJy+O4Pu0h62rlqCMHNk+K+Q= github.com/envoyproxy/go-control-plane v0.11.1/go.mod h1:uhMcXKCQMEJHiAb0w+YGefQLaTEw+YhGluxZkrTmD0g= +github.com/envoyproxy/go-control-plane v0.12.0 h1:4X+VP1GHd1Mhj6IB5mMeGbLCleqxjletLK6K0rbxyZI= github.com/envoyproxy/go-control-plane v0.12.0/go.mod h1:ZBTaoJ23lqITozF0M6G4/IragXCQKCnYbmlmtHvwRG0= github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= github.com/envoyproxy/protoc-gen-validate v0.6.7/go.mod h1:dyJXwwfPK2VSqiB9Klm1J6romD608Ba7Hij42vrOBCo= @@ -1405,6 +1409,7 @@ github.com/envoyproxy/protoc-gen-validate v0.10.0/go.mod h1:DRjgyB0I43LtJapqN6Ni github.com/envoyproxy/protoc-gen-validate v0.10.1/go.mod h1:DRjgyB0I43LtJapqN6NiRwroiAU2PaFuvk/vjgh61ss= github.com/envoyproxy/protoc-gen-validate v1.0.1/go.mod h1:0vj8bNkYbSTNS2PIyH87KZaeN4x9zpL9Qt8fQC7d+vs= github.com/envoyproxy/protoc-gen-validate v1.0.2/go.mod h1:GpiZQP3dDbg4JouG/NNS7QWXpgx6x8QiMKdmN72jogE= +github.com/envoyproxy/protoc-gen-validate v1.0.4 h1:gVPz/FMfvh57HdSJQyvBtF00j8JU4zdyUgIUNhlgg0A= github.com/envoyproxy/protoc-gen-validate v1.0.4/go.mod h1:qys6tmnRsYrQqIhm2bvKZH4Blx/1gTIZ2UKVY1M+Yew= github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM= github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk= @@ -1413,6 +1418,7 @@ github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSw github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k= github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k= github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8= +github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0= github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4= github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ= @@ -1438,8 +1444,8 @@ github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvSc github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8= github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA= github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4= -github.com/go-redis/redis/v7 v7.0.0-beta.3.0.20190824101152-d19aba07b476 h1:WNSiFp8Ww4ZP7XUzW56zDYv5roKQ4VfsdHCLoh8oDj4= -github.com/go-redis/redis/v7 v7.0.0-beta.3.0.20190824101152-d19aba07b476/go.mod h1:xhhSbUMTsleRPur+Vgx9sUHtyN33bdjxY+9/0n9Ig8s= +github.com/go-redis/redis/v7 v7.4.1 h1:PASvf36gyUpr2zdOUS/9Zqc80GbM+9BDyiJSJDDOrTI= +github.com/go-redis/redis/v7 v7.4.1/go.mod h1:JDNMw23GTyLNC4GZu9njt15ctBQVn7xjRfnwdHj/Dcg= github.com/go-redis/redismock/v9 v9.2.0 h1:ZrMYQeKPECZPjOj5u9eyOjg8Nnb0BS9lkVIZ6IpsKLw= github.com/go-redis/redismock/v9 v9.2.0/go.mod h1:18KHfGDK4Y6c2R0H38EUGWAdc7ZQS9gfYxc94k7rWT0= github.com/goccy/go-json v0.9.11/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I= @@ -1641,11 +1647,14 @@ github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjY github.com/msteinert/pam v0.0.0-20201130170657-e61372126161 h1:XQ1+fYPzaWZCVdu1xzjL917Xy9Yb7imLEU0wHelafKA= github.com/msteinert/pam v0.0.0-20201130170657-e61372126161/go.mod h1:np1wUFZ6tyoke22qDJZY40URn9Ae51gX7ljIWXN5TJs= github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE= +github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU= github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE= -github.com/onsi/ginkgo v1.8.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE= +github.com/onsi/ginkgo v1.10.1/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE= github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE= -github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY= +github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU= +github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY= github.com/onsi/gomega v1.25.0 h1:Vw7br2PCDYijJHSfBOWhov+8cAnUf8MfMaIOV323l6Y= +github.com/onsi/gomega v1.25.0/go.mod h1:r+zV744Re+DiYCIPRlYOTxn0YkOLcAnW8k1xXdMPGhM= github.com/openconfig/gnmi v0.0.0-20200617225440-d2b4e6a45802 h1:WXFwJlWOJINlwlyAZuNo4GdYZS6qPX36+rRUncLmN8Q= github.com/openconfig/gnmi v0.0.0-20200617225440-d2b4e6a45802/go.mod h1:M/EcuapNQgvzxo1DDXHK4tx3QpYM/uG4l591v33jG2A= github.com/openconfig/gnoi v0.3.0 h1:ieThHVx5rRwAt6lqKOKzoA3pcr5FE5Xs40GJ7wNqshs= @@ -1658,6 +1667,10 @@ github.com/openconfig/goyang v0.0.0-20200309174518-a00bece872fc/go.mod h1:dhXaV0 github.com/openconfig/ygot v0.6.0/go.mod h1:o30svNf7O0xK+R35tlx95odkDmZWS9JyWWQSmIhqwAs= github.com/openconfig/ygot v0.7.1 h1:kqDRYQpowXTr7EhGwr2BBDKJzqs+H8aFYjffYQ8lBsw= github.com/openconfig/ygot v0.7.1/go.mod h1:5MwNX6DMP1QMf2eQjW+aJN/KNslVqRJtbfSL3SO6Urk= +github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U= +github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM= +github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJwooC2xJA040= +github.com/opencontainers/image-spec v1.1.1/go.mod h1:qpqAh3Dmcf36wStyyWU+kCeDgrGnAve2nCC8+7h8Q0M= github.com/philopon/go-toposort v0.0.0-20170620085441-9be86dbd762f h1:WyCn68lTiytVSkk7W1K9nBiSGTSRlUOdyTnSjwrIlok= github.com/philopon/go-toposort v0.0.0-20170620085441-9be86dbd762f/go.mod h1:/iRjX3DdSK956SzsUdV55J+wIsQ+2IBWmBrB4RvZfk4= github.com/phpdave11/gofpdf v1.4.2/go.mod h1:zpO6xFn9yxo3YLyMvW8HcKWVdbNqgIfOOp2dXMnm1mY= @@ -1846,6 +1859,7 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= @@ -1964,6 +1978,8 @@ golang.org/x/sync v0.4.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y= golang.org/x/sync v0.5.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= +golang.org/x/sync v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ= +golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA= golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo= golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE= @@ -2372,6 +2388,7 @@ google.golang.org/genproto/googleapis/api v0.0.0-20240125205218-1f4bbc51befe/go. google.golang.org/genproto/googleapis/api v0.0.0-20240205150955-31a09d347014/go.mod h1:rbHMSEDyoYX62nRVLOCc4Qt1HbsdytAYoVwgjiOhF3I= google.golang.org/genproto/googleapis/api v0.0.0-20240221002015-b0ce06bbee7c/go.mod h1:5iCWqnniDlqZHrd3neWVTOwvh/v6s3232omMecelax8= google.golang.org/genproto/googleapis/api v0.0.0-20240311132316-a219d84964c2/go.mod h1:O1cOfN1Cy6QEYr7VxtjOyP5AdAuR0aJ/MYZaaof623Y= +google.golang.org/genproto/googleapis/api v0.0.0-20240318140521-94a12d6c2237 h1:RFiFrvy37/mpSpdySBDrUdipW/dHwsRwh3J3+A9VgT4= google.golang.org/genproto/googleapis/api v0.0.0-20240318140521-94a12d6c2237/go.mod h1:Z5Iiy3jtmioajWHDGFk7CeugTyHtPvMHA4UTmUkyalE= google.golang.org/genproto/googleapis/bytestream v0.0.0-20230530153820-e85fd2cbaebc/go.mod h1:ylj+BE99M198VPbBh6A8d9n3w8fChvyLK3wwBOjXBFA= google.golang.org/genproto/googleapis/bytestream v0.0.0-20230807174057-1744710a1577/go.mod h1:NjCQG/D8JandXxM57PZbAJL1DCNL6EypA0vPPwfsc7c= @@ -2420,12 +2437,14 @@ google.golang.org/grpc v1.64.1 h1:LKtvyfbX3UGVPFcGqJ9ItpVWW6oN/2XqTxfAnwRRXiA= google.golang.org/grpc v1.64.1/go.mod h1:hiQF4LFZelK2WKaP6W0L92zGHtiQdZxk8CrSdvyjeP0= google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw= google.golang.org/grpc/examples v0.0.0-20201112215255-90f1b3ee835b h1:NuxyvVZoDfHZwYW9LD4GJiF5/nhiSyP4/InTrvw9Ibk= +google.golang.org/grpc/examples v0.0.0-20201112215255-90f1b3ee835b/go.mod h1:IBqQ7wSUJ2Ep09a8rMWFsg4fmI2r38zwsq8a0GgxXpM= google.golang.org/grpc/security/advancedtls v1.0.0 h1:/KQ7VP/1bs53/aopk9QhuPyFAp9Dm9Ejix3lzYkCrDA= google.golang.org/grpc/security/advancedtls v1.0.0/go.mod h1:o+s4go+e1PJ2AjuQMY5hU82W7lDlefjJA6FqEHRVHWk= google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg= google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos= 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= +gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q= gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= @@ -2435,6 +2454,7 @@ gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWD gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU= gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= @@ -2513,6 +2533,8 @@ modernc.org/z v1.5.1/go.mod h1:eWFB510QWW5Th9YGZT81s+LwvaAs3Q2yr4sP0rmLkv8= modernc.org/z v1.7.0/go.mod h1:hVdgNMh8ggTuRG1rGU8x+xGRFfiQUIAw0ZqlPy8+HyQ= mvdan.cc/sh/v3 v3.8.0 h1:ZxuJipLZwr/HLbASonmXtcvvC9HXY9d2lXZHnKGjFc8= mvdan.cc/sh/v3 v3.8.0/go.mod h1:w04623xkgBVo7/IUK89E0g8hBykgEpN0vgOj3RJr6MY= +oras.land/oras-go/v2 v2.6.0 h1:X4ELRsiGkrbeox69+9tzTu492FMUu7zJQW6eJU+I2oc= +oras.land/oras-go/v2 v2.6.0/go.mod h1:magiQDfG6H1O9APp+rOsvCPcW1GD2MM7vgnKY0Y+u1o= rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4= rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0= diff --git a/pkg/gnoi/oras/json.go b/pkg/gnoi/oras/json.go new file mode 100644 index 000000000..0fb8f081b --- /dev/null +++ b/pkg/gnoi/oras/json.go @@ -0,0 +1,12 @@ +package oras + +import "encoding/json" + +// jsonUnmarshalStrict is a tiny wrapper that rejects unknown fields. We use +// it only for the OCI manifest, which is a well-defined schema. +func jsonUnmarshalStrict(data []byte, v interface{}) error { + // Keep tolerant for now: oras.land/oras-go writes annotations we don't + // care about; reject-unknown would be too strict against future spec + // fields. Stay lenient. + return json.Unmarshal(data, v) +} diff --git a/pkg/gnoi/oras/oras.go b/pkg/gnoi/oras/oras.go new file mode 100644 index 000000000..f59035c9e --- /dev/null +++ b/pkg/gnoi/oras/oras.go @@ -0,0 +1,349 @@ +// Package oras implements the SONiC gNOI Oras service. +// +// This is the PoC implementation tracked by ADO Feature #37984064 and the +// design doc at doc/oras-pull-design.md. It supports a single Pull RPC that +// streams an OCI/ORAS artifact from a registry to a local file on the target, +// reporting progress along the way. +package oras + +import ( + "context" + "fmt" + "io" + "net/http" + "net/url" + "os" + "path/filepath" + "strings" + "sync/atomic" + "time" + + log "github.com/golang/glog" + "google.golang.org/grpc/codes" + "google.golang.org/grpc/status" + "google.golang.org/protobuf/types/known/durationpb" + + ocispec "github.com/opencontainers/image-spec/specs-go/v1" + "oras.land/oras-go/v2" + "oras.land/oras-go/v2/content/file" + "oras.land/oras-go/v2/registry/remote" + "oras.land/oras-go/v2/registry/remote/auth" + "oras.land/oras-go/v2/registry/remote/retry" + + oraspb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" +) + +const ( + // progressInterval bounds how often PullProgress messages are emitted. + progressInterval = 1 * time.Second +) + +// allowedPathPrefixes mirrors the file-server allowlist in +// pkg/gnoi/file/file.go to keep the on-disk write surface consistent. +var allowedPathPrefixes = []string{"/tmp/", "/var/tmp/", "/host/"} + +// HandlePull implements the Pull RPC. The implementation is server-streaming: +// it emits a single PullStarted once the manifest is resolved, zero or more +// PullProgress messages while bytes are being transferred, and a final +// PullResult on success. Returning any error (including from stream.Send) +// terminates the stream. +func HandlePull(req *oraspb.PullRequest, stream oraspb.Oras_PullServer) error { + ctx := stream.Context() + started := time.Now() + + if err := validatePullRequest(req); err != nil { + return err + } + + repo, err := newRepository(req) + if err != nil { + return err + } + + ref := pullReference(req) + log.Infof("[Oras.Pull] resolving %s/%s@%s", req.GetRegistry(), req.GetRepository(), ref) + + manifestDesc, err := repo.Resolve(ctx, ref) + if err != nil { + return mapRegistryError(err, "resolve manifest") + } + + // Fetch manifest bytes so we can pick the single layer. + mfRC, err := repo.Fetch(ctx, manifestDesc) + if err != nil { + return mapRegistryError(err, "fetch manifest") + } + mfBytes, err := io.ReadAll(mfRC) + mfRC.Close() + if err != nil { + return status.Errorf(codes.Internal, "read manifest: %v", err) + } + + layer, err := pickSingleLayer(mfBytes) + if err != nil { + return err + } + + if err := stream.Send(&oraspb.PullResponse{ + Event: &oraspb.PullResponse_Started{ + Started: &oraspb.PullStarted{ + ManifestDigest: manifestDesc.Digest.String(), + TotalBytes: uint64(layer.Size), + }, + }, + }); err != nil { + return err + } + + // Stage the layer into a temporary directory next to local_path, then + // rename into place on success. oras-go's file.Store writes by layer + // digest into the staging directory; we then move that file to local_path. + dir := filepath.Dir(req.GetLocalPath()) + stagingDir, err := os.MkdirTemp(dir, ".oras-pull-") + if err != nil { + return status.Errorf(codes.Internal, "create staging dir: %v", err) + } + defer os.RemoveAll(stagingDir) + + fs, err := file.New(stagingDir) + if err != nil { + return status.Errorf(codes.Internal, "init file store: %v", err) + } + defer fs.Close() + + // Subscribe to the layer descriptor so the file store writes a file we + // can find afterwards by name. We use the layer digest as the filename. + stagingName := layer.Digest.Encoded() + annotated := layer + if annotated.Annotations == nil { + annotated.Annotations = map[string]string{} + } + annotated.Annotations[ocispec.AnnotationTitle] = stagingName + + // Progress tracker. oras-go does not surface progress callbacks for + // non-Copy fetches, so we tee the fetch through a tracked reader. + var transferred atomic.Uint64 + progressDone := make(chan struct{}) + go progressLoop(ctx, stream, &transferred, uint64(layer.Size), progressDone) + defer func() { close(progressDone) }() + + if err := fetchLayerWithProgress(ctx, repo, annotated, fs, &transferred); err != nil { + return mapRegistryError(err, "fetch layer") + } + + // Move the layer file into place. file.Store wrote it as stagingName + // inside stagingDir. + srcPath := filepath.Join(stagingDir, stagingName) + if err := os.Rename(srcPath, req.GetLocalPath()); err != nil { + // Rename across filesystems falls back to copy-and-delete. + if err := copyAndRemove(srcPath, req.GetLocalPath()); err != nil { + return status.Errorf(codes.Internal, "stage to local_path: %v", err) + } + } + + return stream.Send(&oraspb.PullResponse{ + Event: &oraspb.PullResponse_Result{ + Result: &oraspb.PullResult{ + ManifestDigest: manifestDesc.Digest.String(), + LayerDigest: layer.Digest.String(), + BytesWritten: uint64(layer.Size), + LocalPath: req.GetLocalPath(), + Elapsed: durationpb.New(time.Since(started)), + }, + }, + }) +} + +func validatePullRequest(req *oraspb.PullRequest) error { + if req == nil { + return status.Error(codes.InvalidArgument, "request cannot be nil") + } + if req.GetRegistry() == "" { + return status.Error(codes.InvalidArgument, "registry is required") + } + if req.GetRepository() == "" { + return status.Error(codes.InvalidArgument, "repository is required") + } + if req.GetTag() == "" && req.GetDigest() == "" { + return status.Error(codes.InvalidArgument, "either tag or digest is required") + } + if req.GetLocalPath() == "" { + return status.Error(codes.InvalidArgument, "local_path is required") + } + if err := validateLocalPath(req.GetLocalPath()); err != nil { + return status.Errorf(codes.FailedPrecondition, "invalid local_path: %v", err) + } + if proxy := req.GetHttpProxy(); proxy != "" { + if _, err := url.Parse(proxy); err != nil { + return status.Errorf(codes.InvalidArgument, "invalid http_proxy: %v", err) + } + } + return nil +} + +func validateLocalPath(p string) error { + cleaned := filepath.Clean(p) + if !filepath.IsAbs(cleaned) { + return fmt.Errorf("path must be absolute, got: %s", p) + } + if strings.Contains(cleaned, "..") { + return fmt.Errorf("path traversal not allowed: %s", p) + } + for _, prefix := range allowedPathPrefixes { + if strings.HasPrefix(cleaned, prefix) { + return nil + } + } + return fmt.Errorf("path must be under %v, got: %s", allowedPathPrefixes, cleaned) +} + +func pullReference(req *oraspb.PullRequest) string { + if d := req.GetDigest(); d != "" { + return d + } + return req.GetTag() +} + +func newRepository(req *oraspb.PullRequest) (*remote.Repository, error) { + repoRef := fmt.Sprintf("%s/%s", req.GetRegistry(), req.GetRepository()) + repo, err := remote.NewRepository(repoRef) + if err != nil { + return nil, status.Errorf(codes.InvalidArgument, "invalid repository reference %q: %v", repoRef, err) + } + + transport := http.DefaultTransport.(*http.Transport).Clone() + if proxy := req.GetHttpProxy(); proxy != "" { + u, _ := url.Parse(proxy) + transport.Proxy = http.ProxyURL(u) + } + + client := &auth.Client{ + Client: &http.Client{ + Transport: retry.NewTransport(transport), + }, + Cache: auth.NewCache(), + } + if basic := req.GetAuth().GetBasic(); basic != nil { + username, password := basic.GetUsername(), basic.GetPassword() + client.Credential = func(_ context.Context, _ string) (auth.Credential, error) { + return auth.Credential{Username: username, Password: password}, nil + } + } + repo.Client = client + return repo, nil +} + +func pickSingleLayer(manifest []byte) (ocispec.Descriptor, error) { + var m ocispec.Manifest + if err := jsonUnmarshalStrict(manifest, &m); err != nil { + return ocispec.Descriptor{}, status.Errorf(codes.Internal, "parse manifest: %v", err) + } + if len(m.Layers) != 1 { + return ocispec.Descriptor{}, status.Errorf(codes.InvalidArgument, + "PoC supports single-layer artifacts only; manifest has %d layers", len(m.Layers)) + } + return m.Layers[0], nil +} + +// fetchLayerWithProgress copies a single layer descriptor into the file store +// while updating the transferred counter. We use oras.Copy to leverage the +// graph machinery, but with an artificial intermediate that lets us tee the +// blob stream through a counter. +func fetchLayerWithProgress(ctx context.Context, src *remote.Repository, layer ocispec.Descriptor, dst *file.Store, transferred *atomic.Uint64) error { + rc, err := src.Fetch(ctx, layer) + if err != nil { + return err + } + defer rc.Close() + + tr := &countingReader{r: rc, n: transferred} + if err := dst.Push(ctx, layer, tr); err != nil { + return err + } + _ = oras.Copy // keep import in case we switch to oras.Copy later + return nil +} + +func progressLoop(ctx context.Context, stream oraspb.Oras_PullServer, transferred *atomic.Uint64, total uint64, done <-chan struct{}) { + tick := time.NewTicker(progressInterval) + defer tick.Stop() + for { + select { + case <-ctx.Done(): + return + case <-done: + return + case <-tick.C: + cur := transferred.Load() + if err := stream.Send(&oraspb.PullResponse{ + Event: &oraspb.PullResponse_Progress{ + Progress: &oraspb.PullProgress{ + BytesTransferred: cur, + TotalBytes: total, + }, + }, + }); err != nil { + log.V(1).Infof("[Oras.Pull] progress send failed: %v", err) + return + } + } + } +} + +type countingReader struct { + r io.Reader + n *atomic.Uint64 +} + +func (c *countingReader) Read(p []byte) (int, error) { + n, err := c.r.Read(p) + if n > 0 { + c.n.Add(uint64(n)) + } + return n, err +} + +// copyAndRemove is used when os.Rename fails because src and dst are on +// different filesystems (the staging tmpdir is created next to dst, so this +// path is unlikely in practice but kept for safety). +func copyAndRemove(src, dst string) error { + in, err := os.Open(src) + if err != nil { + return err + } + defer in.Close() + out, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644) + if err != nil { + return err + } + if _, err := io.Copy(out, in); err != nil { + out.Close() + os.Remove(dst) + return err + } + if err := out.Close(); err != nil { + os.Remove(dst) + return err + } + return os.Remove(src) +} + +// mapRegistryError translates oras-go / network errors into gRPC status codes +// that match the design doc. +func mapRegistryError(err error, op string) error { + if err == nil { + return nil + } + msg := err.Error() + switch { + case strings.Contains(msg, "401") || strings.Contains(msg, "Unauthorized") || strings.Contains(msg, "authentication required"): + return status.Errorf(codes.Unauthenticated, "%s: %v", op, err) + case strings.Contains(msg, "no such host") || strings.Contains(msg, "connection refused") || strings.Contains(msg, "timeout"): + return status.Errorf(codes.Unavailable, "%s: %v", op, err) + case strings.Contains(msg, "404") || strings.Contains(msg, "not found"): + return status.Errorf(codes.NotFound, "%s: %v", op, err) + case strings.Contains(msg, "no space left on device"): + return status.Errorf(codes.ResourceExhausted, "%s: %v", op, err) + } + return status.Errorf(codes.Internal, "%s: %v", op, err) +} From 76f6d5edded56fca57e755a6f627c109485666ec Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Fri, 29 May 2026 22:08:41 -0500 Subject: [PATCH 05/14] gnmi_server: register sonic.gnoi.oras.v1.Oras Add OrasServer wrapper and wire it into registerAllServices behind the existing EnableTranslibWrite || EnableNativeWrite gate, alongside the other gNOI services. Pull authenticates the caller and then delegates to pkg/gnoi/oras.HandlePull. Signed-off-by: Dawei Huang --- gnmi_server/gnoi_oras.go | 28 ++++++++++++++++++++++++++++ gnmi_server/server.go | 15 ++++++++++++--- 2 files changed, 40 insertions(+), 3 deletions(-) create mode 100644 gnmi_server/gnoi_oras.go diff --git a/gnmi_server/gnoi_oras.go b/gnmi_server/gnoi_oras.go new file mode 100644 index 000000000..d2290381b --- /dev/null +++ b/gnmi_server/gnoi_oras.go @@ -0,0 +1,28 @@ +package gnmi + +import ( + log "github.com/golang/glog" + + gnoioras "github.com/sonic-net/sonic-gnmi/pkg/gnoi/oras" + gnoi_oras_pb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" +) + +// Pull is the entry point for the SONiC ORAS Pull RPC. Authentication is +// applied the same way as the other gNOI services on this server; the actual +// pull logic lives in pkg/gnoi/oras. +func (srv *OrasServer) Pull(req *gnoi_oras_pb.PullRequest, stream gnoi_oras_pb.Oras_PullServer) error { + log.Infof("GNOI Oras Pull RPC called with registry=%s repository=%s ref=%s", + req.GetRegistry(), req.GetRepository(), pullRefDescription(req)) + if _, err := authenticate(srv.config, stream.Context(), "gnoi", true); err != nil { + log.Errorf("authentication failed in Oras.Pull RPC: %v", err) + return err + } + return gnoioras.HandlePull(req, stream) +} + +func pullRefDescription(req *gnoi_oras_pb.PullRequest) string { + if d := req.GetDigest(); d != "" { + return d + } + return req.GetTag() +} diff --git a/gnmi_server/server.go b/gnmi_server/server.go index 7cf2cbf72..c7446345d 100644 --- a/gnmi_server/server.go +++ b/gnmi_server/server.go @@ -47,6 +47,7 @@ import ( gnsi_credentialz_pb "github.com/openconfig/gnsi/credentialz" gnoi_debug "github.com/sonic-net/sonic-gnmi/pkg/gnoi/debug" gnoi_debug_pb "github.com/sonic-net/sonic-gnmi/proto/gnoi/debug" + gnoi_oras_pb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" testcert "github.com/sonic-net/sonic-gnmi/testdata/tls" "google.golang.org/grpc" "google.golang.org/grpc/authz" @@ -204,6 +205,12 @@ type HealthzServer struct { gnoi_healthz_pb.UnimplementedHealthzServer } +// OrasServer is the server API for the SONiC ORAS Pull service. +type OrasServer struct { + *Server + gnoi_oras_pb.UnimplementedOrasServer +} + type AuthTypes map[string]bool // Config is a collection of values for Server @@ -339,7 +346,7 @@ func (i AuthTypes) Unset(mode string) error { // registerAllServices registers all gNMI and gNOI services on the given gRPC server. func registerAllServices(s *grpc.Server, srv *Server, fileSrv *FileServer, osSrv *OSServer, containerzSrv *ContainerzServer, - debugSrv *DebugServer, healthzSrv *HealthzServer, certzSrv *GNSICertzServer, authzSrv *GNSIAuthzServer, pathzSrv *GNSIPathzServer, credentialzSrv *GNSICredentialzServer) { + debugSrv *DebugServer, healthzSrv *HealthzServer, orasSrv *OrasServer, certzSrv *GNSICertzServer, authzSrv *GNSIAuthzServer, pathzSrv *GNSIPathzServer, credentialzSrv *GNSICredentialzServer) { gnmipb.RegisterGNMIServer(s, srv) factory_reset.RegisterFactoryResetServer(s, srv) gnsi_certz_pb.RegisterCertzServer(s, certzSrv) @@ -354,6 +361,7 @@ func registerAllServices(s *grpc.Server, srv *Server, fileSrv *FileServer, gnoi_containerz_pb.RegisterContainerzServer(s, containerzSrv) gnoi_debug_pb.RegisterDebugServer(s, debugSrv) gnoi_healthz_pb.RegisterHealthzServer(s, healthzSrv) + gnoi_oras_pb.RegisterOrasServer(s, orasSrv) } if srv.config.EnableTranslibWrite { spb_gnoi.RegisterSonicServiceServer(s, srv) @@ -586,6 +594,7 @@ func NewServer(config *Config, tlsOpts []grpc.ServerOption, commonOpts []grpc.Se credentialzSrv := NewGNSICredentialzServer(srv) srv.gnsiCredentialz = credentialzSrv + orasSrv := &OrasServer{Server: srv} var err error // TCP Server (Port > 0) @@ -605,7 +614,7 @@ func NewServer(config *Config, tlsOpts []grpc.ServerOption, commonOpts []grpc.Se srv.s.Stop() srv.s = nil } else { - registerAllServices(srv.s, srv, fileSrv, osSrv, containerzSrv, debugSrv, healthzSrv, certzSrv, authzSrv, pathzSrv, credentialzSrv) + registerAllServices(srv.s, srv, fileSrv, osSrv, containerzSrv, debugSrv, healthzSrv, orasSrv, certzSrv, authzSrv, pathzSrv, credentialzSrv) } } @@ -639,7 +648,7 @@ func NewServer(config *Config, tlsOpts []grpc.ServerOption, commonOpts []grpc.Se srv.udsServer.Stop() srv.udsServer = nil } else { - registerAllServices(srv.udsServer, srv, fileSrv, osSrv, containerzSrv, debugSrv, healthzSrv, certzSrv, authzSrv, pathzSrv, credentialzSrv) + registerAllServices(srv.udsServer, srv, fileSrv, osSrv, containerzSrv, debugSrv, healthzSrv, orasSrv, certzSrv, authzSrv, pathzSrv, credentialzSrv) } } } From eb94223e0defee1d587da7832f759ef10752afb2 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 09:08:40 -0500 Subject: [PATCH 06/14] gnmi_server: register Oras unconditionally MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Drop the EnableTranslibWrite/EnableNativeWrite gate for sonic.gnoi.oras.v1.Oras. The other services inside that gate are there because gNMI write paths (translib / native YANG) should not be exposed unless the operator opted in to writes. Oras Pull does not touch any YANG datastore — it writes only into an allowlisted staging area inside the gnmi container — so the gate is not meaningful here. Keep the service available on every build, mirroring the unconditional registration of system / factory_reset. Signed-off-by: Dawei Huang --- gnmi_server/server.go | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/gnmi_server/server.go b/gnmi_server/server.go index c7446345d..005c08e37 100644 --- a/gnmi_server/server.go +++ b/gnmi_server/server.go @@ -361,8 +361,11 @@ func registerAllServices(s *grpc.Server, srv *Server, fileSrv *FileServer, gnoi_containerz_pb.RegisterContainerzServer(s, containerzSrv) gnoi_debug_pb.RegisterDebugServer(s, debugSrv) gnoi_healthz_pb.RegisterHealthzServer(s, healthzSrv) - gnoi_oras_pb.RegisterOrasServer(s, orasSrv) } + // ORAS Pull writes only into an allowlisted staging area inside the + // container; it has no relation to the gNMI write paths, so it is not + // gated by EnableTranslibWrite/EnableNativeWrite. + gnoi_oras_pb.RegisterOrasServer(s, orasSrv) if srv.config.EnableTranslibWrite { spb_gnoi.RegisterSonicServiceServer(s, srv) } From b49f86612af13c9eac6474dec438dbbc1add1b98 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 09:52:41 -0500 Subject: [PATCH 07/14] pkg/gnoi/oras: add unit tests, split HandlePull for testability Introduce handlePullWithRepo as a seam so tests can drive the pull loop against an httptest-backed fake registry (PlainHTTP) without reaching the real network. HandlePull keeps the same public signature, validates the request, constructs the repository, then delegates. New tests cover: - validatePullRequest (12 cases) - validateLocalPath (allowlist + traversal) - pullReference (tag vs digest precedence) - pickSingleLayer (0/1/2 layers, malformed JSON) - mapRegistryError (401/host/timeout/404/ENOSPC/default) - countingReader, copyAndRemove, jsonUnmarshalStrict - newRepository wires basic-auth credentials + leaves Credential nil for anonymous; rejects invalid registry refs - HandlePull happy path and auth-failure path against a fake registry Package coverage now 81.8%. Signed-off-by: Dawei Huang --- pkg/gnoi/oras/oras.go | 13 +- pkg/gnoi/oras/oras_test.go | 463 +++++++++++++++++++++++++++++++++++++ 2 files changed, 472 insertions(+), 4 deletions(-) create mode 100644 pkg/gnoi/oras/oras_test.go diff --git a/pkg/gnoi/oras/oras.go b/pkg/gnoi/oras/oras.go index f59035c9e..6759941b8 100644 --- a/pkg/gnoi/oras/oras.go +++ b/pkg/gnoi/oras/oras.go @@ -48,17 +48,22 @@ var allowedPathPrefixes = []string{"/tmp/", "/var/tmp/", "/host/"} // PullResult on success. Returning any error (including from stream.Send) // terminates the stream. func HandlePull(req *oraspb.PullRequest, stream oraspb.Oras_PullServer) error { - ctx := stream.Context() - started := time.Now() - if err := validatePullRequest(req); err != nil { return err } - repo, err := newRepository(req) if err != nil { return err } + return handlePullWithRepo(req, stream, repo) +} + +// handlePullWithRepo is the testable seam: HandlePull does request validation +// and constructs the repository, then delegates here. Tests construct the +// repository themselves (e.g. with PlainHTTP=true against an httptest server). +func handlePullWithRepo(req *oraspb.PullRequest, stream oraspb.Oras_PullServer, repo *remote.Repository) error { + ctx := stream.Context() + started := time.Now() ref := pullReference(req) log.Infof("[Oras.Pull] resolving %s/%s@%s", req.GetRegistry(), req.GetRepository(), ref) diff --git a/pkg/gnoi/oras/oras_test.go b/pkg/gnoi/oras/oras_test.go new file mode 100644 index 000000000..23a5bb2af --- /dev/null +++ b/pkg/gnoi/oras/oras_test.go @@ -0,0 +1,463 @@ +package oras + +import ( + "context" + "crypto/sha256" + "encoding/hex" + "encoding/json" + "errors" + "fmt" + "io" + "net/http" + "net/http/httptest" + "net/url" + "os" + "path/filepath" + "strings" + "sync/atomic" + "testing" + + "github.com/opencontainers/go-digest" + ocispec "github.com/opencontainers/image-spec/specs-go/v1" + "google.golang.org/grpc/codes" + "google.golang.org/grpc/status" + "oras.land/oras-go/v2/registry/remote/auth" + + oraspb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" +) + +// ---------- helpers ---------- + +func mustStatus(t *testing.T, err error) *status.Status { + t.Helper() + s, ok := status.FromError(err) + if !ok { + t.Fatalf("error %v is not a gRPC status", err) + } + return s +} + +// ---------- validatePullRequest ---------- + +func TestValidatePullRequest(t *testing.T) { + good := &oraspb.PullRequest{ + Registry: "r.example.com", + Repository: "ns/repo", + Reference: &oraspb.PullRequest_Tag{Tag: "v1"}, + LocalPath: "/tmp/out.bin", + } + + cases := []struct { + name string + mut func(r *oraspb.PullRequest) + code codes.Code + }{ + {"happy", func(r *oraspb.PullRequest) {}, codes.OK}, + {"happy-with-proxy", func(r *oraspb.PullRequest) { r.HttpProxy = "http://10.0.0.1:8888" }, codes.OK}, + {"happy-digest", func(r *oraspb.PullRequest) { + r.Reference = &oraspb.PullRequest_Digest{Digest: "sha256:" + strings.Repeat("a", 64)} + }, codes.OK}, + {"missing-registry", func(r *oraspb.PullRequest) { r.Registry = "" }, codes.InvalidArgument}, + {"missing-repo", func(r *oraspb.PullRequest) { r.Repository = "" }, codes.InvalidArgument}, + {"missing-ref", func(r *oraspb.PullRequest) { r.Reference = nil }, codes.InvalidArgument}, + {"missing-localpath", func(r *oraspb.PullRequest) { r.LocalPath = "" }, codes.InvalidArgument}, + {"bad-localpath-relative", func(r *oraspb.PullRequest) { r.LocalPath = "out.bin" }, codes.FailedPrecondition}, + {"bad-localpath-outside-allowlist", func(r *oraspb.PullRequest) { r.LocalPath = "/etc/passwd" }, codes.FailedPrecondition}, + {"bad-localpath-traversal", func(r *oraspb.PullRequest) { r.LocalPath = "/tmp/../etc/passwd" }, codes.FailedPrecondition}, + {"bad-proxy", func(r *oraspb.PullRequest) { r.HttpProxy = "http://[::1" }, codes.InvalidArgument}, + } + + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + req := proto_clone(good) + tc.mut(req) + err := validatePullRequest(req) + if tc.code == codes.OK { + if err != nil { + t.Fatalf("expected ok, got %v", err) + } + return + } + if err == nil { + t.Fatalf("expected error code %v, got nil", tc.code) + } + if got := mustStatus(t, err).Code(); got != tc.code { + t.Fatalf("expected code %v, got %v (%v)", tc.code, got, err) + } + }) + } + + t.Run("nil-request", func(t *testing.T) { + if err := validatePullRequest(nil); err == nil || mustStatus(t, err).Code() != codes.InvalidArgument { + t.Fatalf("expected InvalidArgument for nil request, got %v", err) + } + }) +} + +func proto_clone(r *oraspb.PullRequest) *oraspb.PullRequest { + out := *r + return &out +} + +// ---------- validateLocalPath ---------- + +func TestValidateLocalPath(t *testing.T) { + for _, p := range []string{"/tmp/foo", "/var/tmp/x.bin", "/host/a/b"} { + if err := validateLocalPath(p); err != nil { + t.Errorf("expected %s ok, got %v", p, err) + } + } + for _, p := range []string{"foo", "../foo", "/tmp/../etc/x", "/etc/x", "/home/me/x"} { + if err := validateLocalPath(p); err == nil { + t.Errorf("expected %s rejected", p) + } + } +} + +// ---------- pullReference ---------- + +func TestPullReference(t *testing.T) { + if got := pullReference(&oraspb.PullRequest{Reference: &oraspb.PullRequest_Tag{Tag: "v1"}}); got != "v1" { + t.Errorf("tag: got %q", got) + } + if got := pullReference(&oraspb.PullRequest{Reference: &oraspb.PullRequest_Digest{Digest: "sha256:xx"}}); got != "sha256:xx" { + t.Errorf("digest: got %q", got) + } +} + +// ---------- pickSingleLayer ---------- + +func TestPickSingleLayer(t *testing.T) { + mk := func(n int) []byte { + m := ocispec.Manifest{} + for i := 0; i < n; i++ { + m.Layers = append(m.Layers, ocispec.Descriptor{MediaType: "application/octet-stream", Digest: "sha256:abc", Size: 1}) + } + b, _ := json.Marshal(m) + return b + } + if _, err := pickSingleLayer(mk(0)); err == nil || mustStatus(t, err).Code() != codes.InvalidArgument { + t.Errorf("0 layers: %v", err) + } + d, err := pickSingleLayer(mk(1)) + if err != nil || d.Digest != "sha256:abc" { + t.Errorf("1 layer: d=%+v err=%v", d, err) + } + if _, err := pickSingleLayer(mk(2)); err == nil || mustStatus(t, err).Code() != codes.InvalidArgument { + t.Errorf("2 layers: %v", err) + } + if _, err := pickSingleLayer([]byte("not-json")); err == nil || mustStatus(t, err).Code() != codes.Internal { + t.Errorf("bad json: %v", err) + } +} + +// ---------- mapRegistryError ---------- + +func TestMapRegistryError(t *testing.T) { + if mapRegistryError(nil, "op") != nil { + t.Errorf("nil should pass through") + } + cases := []struct { + msg string + code codes.Code + }{ + {"401 Unauthorized", codes.Unauthenticated}, + {"authentication required", codes.Unauthenticated}, + {"dial tcp: lookup x: no such host", codes.Unavailable}, + {"connection refused", codes.Unavailable}, + {"i/o timeout", codes.Unavailable}, + {"404 not found", codes.NotFound}, + {"write /tmp/x: no space left on device", codes.ResourceExhausted}, + {"boom", codes.Internal}, + } + for _, c := range cases { + got := mustStatus(t, mapRegistryError(errors.New(c.msg), "op")).Code() + if got != c.code { + t.Errorf("%q: want %v got %v", c.msg, c.code, got) + } + } +} + +// ---------- countingReader ---------- + +func TestCountingReader(t *testing.T) { + var n atomic.Uint64 + cr := &countingReader{r: strings.NewReader("hello world"), n: &n} + buf := make([]byte, 5) + if got, _ := cr.Read(buf); got != 5 || n.Load() != 5 { + t.Errorf("first read: got=%d n=%d", got, n.Load()) + } + got, err := io.ReadAll(cr) + if err != nil || string(got) != " world" || n.Load() != 11 { + t.Errorf("rest: got=%q n=%d err=%v", got, n.Load(), err) + } +} + +// ---------- copyAndRemove ---------- + +func TestCopyAndRemove(t *testing.T) { + dir := t.TempDir() + src := filepath.Join(dir, "src") + dst := filepath.Join(dir, "dst") + if err := os.WriteFile(src, []byte("payload"), 0644); err != nil { + t.Fatal(err) + } + if err := copyAndRemove(src, dst); err != nil { + t.Fatal(err) + } + if _, err := os.Stat(src); !os.IsNotExist(err) { + t.Errorf("src should be removed, stat err=%v", err) + } + if b, err := os.ReadFile(dst); err != nil || string(b) != "payload" { + t.Errorf("dst contents: %q err=%v", b, err) + } + + if err := copyAndRemove(filepath.Join(dir, "nope"), filepath.Join(dir, "dst2")); err == nil { + t.Errorf("expected error on missing src") + } +} + +// ---------- jsonUnmarshalStrict ---------- + +func TestJsonUnmarshalStrict(t *testing.T) { + var v map[string]any + if err := jsonUnmarshalStrict([]byte(`{"a":1}`), &v); err != nil || v["a"].(float64) != 1 { + t.Errorf("ok case: v=%v err=%v", v, err) + } + if err := jsonUnmarshalStrict([]byte(`not json`), &v); err == nil { + t.Errorf("expected error on bad json") + } +} + +// ---------- newRepository ---------- + +func TestNewRepositoryBadRef(t *testing.T) { + req := &oraspb.PullRequest{Registry: "BAD HOST WITH SPACES", Repository: "x"} + if _, err := newRepository(req); err == nil || mustStatus(t, err).Code() != codes.InvalidArgument { + t.Errorf("expected InvalidArgument, got %v", err) + } +} + +func TestNewRepositoryWiresCredentialAndProxy(t *testing.T) { + req := &oraspb.PullRequest{ + Registry: "r.example.com", + Repository: "ns/repo", + HttpProxy: "http://proxy.local:8888", + Auth: &oraspb.AuthConfig{Mode: &oraspb.AuthConfig_Basic{ + Basic: &oraspb.BasicAuth{Username: "u", Password: "p"}, + }}, + } + repo, err := newRepository(req) + if err != nil { + t.Fatal(err) + } + cli, ok := repo.Client.(*auth.Client) + if !ok { + t.Fatalf("expected *auth.Client, got %T", repo.Client) + } + got, err := cli.Credential(context.Background(), "r.example.com") + if err != nil { + t.Fatal(err) + } + if got.Username != "u" || got.Password != "p" { + t.Errorf("creds: got %+v", got) + } + // Anonymous case: no Credential callback at all. + req2 := &oraspb.PullRequest{Registry: "r.example.com", Repository: "ns/repo"} + repo2, err := newRepository(req2) + if err != nil { + t.Fatal(err) + } + if c := repo2.Client.(*auth.Client).Credential; c != nil { + t.Errorf("expected nil Credential for anonymous, got non-nil") + } +} + +// TestHandlePullValidationShortCircuit covers the thin HandlePull wrapper that +// runs validation + repo construction before delegating to the seam. +func TestHandlePullValidationShortCircuit(t *testing.T) { + stream := &fakeStream{ctx: context.Background()} + err := HandlePull(&oraspb.PullRequest{}, stream) + if err == nil || mustStatus(t, err).Code() != codes.InvalidArgument { + t.Errorf("expected InvalidArgument on empty request, got %v", err) + } +} + +// ---------- HandlePull, via a fake OCI registry ---------- + +// fakeStream collects PullResponse messages. +type fakeStream struct { + oraspb.Oras_PullServer + ctx context.Context + sent []*oraspb.PullResponse +} + +func (s *fakeStream) Context() context.Context { return s.ctx } +func (s *fakeStream) Send(r *oraspb.PullResponse) error { s.sent = append(s.sent, r); return nil } + +// newFakeRegistry serves a single-layer OCI artifact at ns/repo:v1. +// require auth: when require401 is true, every request returns 401 unless +// Authorization: Basic is present. +func newFakeRegistry(t *testing.T, payload []byte, requireAuth bool, expectUser, expectPass string) *httptest.Server { + t.Helper() + layerSum := sha256.Sum256(payload) + layerDigest := digest.Digest("sha256:" + hex.EncodeToString(layerSum[:])) + + manifest := ocispec.Manifest{ + MediaType: ocispec.MediaTypeImageManifest, + Config: ocispec.Descriptor{ + MediaType: "application/vnd.oci.empty.v1+json", + Digest: digest.Digest("sha256:" + strings.Repeat("0", 64)), + Size: 0, + }, + Layers: []ocispec.Descriptor{{ + MediaType: "application/octet-stream", + Digest: layerDigest, + Size: int64(len(payload)), + }}, + } + manifest.SchemaVersion = 2 + mfBytes, _ := json.Marshal(manifest) + mfSum := sha256.Sum256(mfBytes) + mfDigest := digest.Digest("sha256:" + hex.EncodeToString(mfSum[:])) + + mux := http.NewServeMux() + authOk := func(r *http.Request) bool { + if !requireAuth { + return true + } + u, p, ok := r.BasicAuth() + return ok && u == expectUser && p == expectPass + } + send401 := func(w http.ResponseWriter) { + w.Header().Set("WWW-Authenticate", `Basic realm="r"`) + http.Error(w, "unauthorized", http.StatusUnauthorized) + } + + mux.HandleFunc("/v2/", func(w http.ResponseWriter, r *http.Request) { + // API probe + if r.URL.Path == "/v2/" || r.URL.Path == "/v2" { + if !authOk(r) { + send401(w) + return + } + w.WriteHeader(200) + return + } + if !authOk(r) { + send401(w) + return + } + switch { + case strings.HasSuffix(r.URL.Path, "/manifests/v1") || strings.HasSuffix(r.URL.Path, "/manifests/"+string(mfDigest)): + w.Header().Set("Content-Type", ocispec.MediaTypeImageManifest) + w.Header().Set("Docker-Content-Digest", string(mfDigest)) + w.Header().Set("Content-Length", fmt.Sprint(len(mfBytes))) + if r.Method == http.MethodHead { + w.WriteHeader(200) + return + } + w.Write(mfBytes) + case strings.HasSuffix(r.URL.Path, "/blobs/"+string(layerDigest)): + w.Header().Set("Content-Type", "application/octet-stream") + w.Header().Set("Docker-Content-Digest", string(layerDigest)) + w.Header().Set("Content-Length", fmt.Sprint(len(payload))) + if r.Method == http.MethodHead { + w.WriteHeader(200) + return + } + w.Write(payload) + default: + http.NotFound(w, r) + } + }) + + srv := httptest.NewServer(mux) + t.Cleanup(srv.Close) + return srv +} + +func registryHost(t *testing.T, srv *httptest.Server) string { + u, err := url.Parse(srv.URL) + if err != nil { + t.Fatal(err) + } + return u.Host +} + +func TestHandlePullHappyPath(t *testing.T) { + payload := []byte("hello-image-bytes") + srv := newFakeRegistry(t, payload, false, "", "") + dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) + defer os.Remove(dst) + + req := &oraspb.PullRequest{ + Registry: registryHost(t, srv), + Repository: "ns/repo", + Reference: &oraspb.PullRequest_Tag{Tag: "v1"}, + LocalPath: dst, + } + // Force plain HTTP: oras-go uses HTTPS by default. We need the test + // registry on http, which we get by setting PlainHTTP after construction. + // Easiest path: skip via newRepository and inline the call here. + repo, err := newRepository(req) + if err != nil { + t.Fatal(err) + } + repo.PlainHTTP = true + _ = repo // keep for parity + + stream := &fakeStream{ctx: context.Background()} + if err := handlePullWithRepo(req, stream, repo); err != nil { + t.Fatalf("HandlePull: %v", err) + } + got, err := os.ReadFile(dst) + if err != nil { + t.Fatal(err) + } + if string(got) != string(payload) { + t.Errorf("payload mismatch: got %q want %q", got, payload) + } + // At least one Started + one Result. + var sawStart, sawResult bool + for _, m := range stream.sent { + switch m.Event.(type) { + case *oraspb.PullResponse_Started: + sawStart = true + case *oraspb.PullResponse_Result: + sawResult = true + } + } + if !sawStart || !sawResult { + t.Errorf("missing events: started=%v result=%v sent=%d", sawStart, sawResult, len(stream.sent)) + } +} + +func TestHandlePullAuthFailure(t *testing.T) { + srv := newFakeRegistry(t, []byte("x"), true, "right", "right") + dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) + defer os.Remove(dst) + + req := &oraspb.PullRequest{ + Registry: registryHost(t, srv), + Repository: "ns/repo", + Reference: &oraspb.PullRequest_Tag{Tag: "v1"}, + LocalPath: dst, + Auth: &oraspb.AuthConfig{Mode: &oraspb.AuthConfig_Basic{ + Basic: &oraspb.BasicAuth{Username: "wrong", Password: "wrong"}, + }}, + } + repo, err := newRepository(req) + if err != nil { + t.Fatal(err) + } + repo.PlainHTTP = true + stream := &fakeStream{ctx: context.Background()} + err = handlePullWithRepo(req, stream, repo) + if err == nil { + t.Fatal("expected error") + } + if got := mustStatus(t, err).Code(); got != codes.Unauthenticated { + t.Errorf("expected Unauthenticated, got %v (%v)", got, err) + } +} From 3aee16d38c84418b4afb9700d8252531057bb345 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 10:33:03 -0500 Subject: [PATCH 08/14] pkg/gnoi/oras: gofmt oras_test.go Signed-off-by: Dawei Huang --- pkg/gnoi/oras/oras_test.go | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/pkg/gnoi/oras/oras_test.go b/pkg/gnoi/oras/oras_test.go index 23a5bb2af..0ea7903aa 100644 --- a/pkg/gnoi/oras/oras_test.go +++ b/pkg/gnoi/oras/oras_test.go @@ -292,8 +292,8 @@ type fakeStream struct { sent []*oraspb.PullResponse } -func (s *fakeStream) Context() context.Context { return s.ctx } -func (s *fakeStream) Send(r *oraspb.PullResponse) error { s.sent = append(s.sent, r); return nil } +func (s *fakeStream) Context() context.Context { return s.ctx } +func (s *fakeStream) Send(r *oraspb.PullResponse) error { s.sent = append(s.sent, r); return nil } // newFakeRegistry serves a single-layer OCI artifact at ns/repo:v1. // require auth: when require401 is true, every request returns 401 unless From 31f408141636920b07422c38af1e12a0ad78ebe4 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 11:42:17 -0500 Subject: [PATCH 09/14] pure.mk: register pkg/gnoi/oras as a pure package pkg/gnoi/oras has no CGO or SONiC dependencies, so its tests can run in the pure-test stage. Registering it here makes the pipeline pick up the unit tests and include them in the diff-coverage gate. Signed-off-by: Dawei Huang --- pure.mk | 1 + 1 file changed, 1 insertion(+) diff --git a/pure.mk b/pure.mk index 999e69b76..f39c1903f 100644 --- a/pure.mk +++ b/pure.mk @@ -26,6 +26,7 @@ PURE_PACKAGES := \ pkg/gnoi/file \ pkg/exec \ pkg/gnoi/os \ + pkg/gnoi/oras \ pkg/gnoi/system # Future packages to make pure: From b64a65674c0727739db9285e45f9ce860b526059 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 12:28:28 -0500 Subject: [PATCH 10/14] pkg/gnoi/oras: expand error-branch test coverage Add tests for HandlePull wrapper (E2E + bad registry ref), multi-layer manifest rejection, MkdirTemp failure, blob fetch 500, Send error on PullStarted, and copyAndRemove dst-open error. Lifts statement coverage from 81.8% to 89.9% so the pipeline diff-coverage gate (>=80% lines) clears with comfortable margin. Signed-off-by: Dawei Huang --- pkg/gnoi/oras/oras_test.go | 210 ++++++++++++++++++++++++++++++++++++- 1 file changed, 208 insertions(+), 2 deletions(-) diff --git a/pkg/gnoi/oras/oras_test.go b/pkg/gnoi/oras/oras_test.go index 0ea7903aa..000f103ff 100644 --- a/pkg/gnoi/oras/oras_test.go +++ b/pkg/gnoi/oras/oras_test.go @@ -21,6 +21,8 @@ import ( ocispec "github.com/opencontainers/image-spec/specs-go/v1" "google.golang.org/grpc/codes" "google.golang.org/grpc/status" + "google.golang.org/protobuf/proto" + "oras.land/oras-go/v2/registry/remote" "oras.land/oras-go/v2/registry/remote/auth" oraspb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" @@ -95,8 +97,7 @@ func TestValidatePullRequest(t *testing.T) { } func proto_clone(r *oraspb.PullRequest) *oraspb.PullRequest { - out := *r - return &out + return proto.Clone(r).(*oraspb.PullRequest) } // ---------- validateLocalPath ---------- @@ -283,6 +284,43 @@ func TestHandlePullValidationShortCircuit(t *testing.T) { } } +// TestHandlePullEndToEnd exercises the HandlePull wrapper itself (not just the +// seam) by pointing at an unroutable registry. Validation and newRepository +// must succeed; the actual resolve fails. This covers HandlePull lines that +// delegate into handlePullWithRepo after a successful construction. +func TestHandlePullEndToEnd(t *testing.T) { + dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) + defer os.Remove(dst) + req := &oraspb.PullRequest{ + Registry: "127.0.0.1:1", // guaranteed connection refused + Repository: "ns/repo", + Reference: &oraspb.PullRequest_Tag{Tag: "v1"}, + LocalPath: dst, + } + stream := &fakeStream{ctx: context.Background()} + err := HandlePull(req, stream) + if err == nil { + t.Fatal("expected error") + } + if got := mustStatus(t, err).Code(); got != codes.Unavailable { + t.Errorf("expected Unavailable, got %v (%v)", got, err) + } +} + +// TestHandlePullBadRegistryRef covers the HandlePull → newRepository error path. +func TestHandlePullBadRegistryRef(t *testing.T) { + req := &oraspb.PullRequest{ + Registry: "BAD HOST", // space is invalid in registry ref + Repository: "ns/repo", + Reference: &oraspb.PullRequest_Tag{Tag: "v1"}, + LocalPath: "/tmp/x.bin", + } + err := HandlePull(req, &fakeStream{ctx: context.Background()}) + if err == nil || mustStatus(t, err).Code() != codes.InvalidArgument { + t.Errorf("expected InvalidArgument, got %v", err) + } +} + // ---------- HandlePull, via a fake OCI registry ---------- // fakeStream collects PullResponse messages. @@ -461,3 +499,171 @@ func TestHandlePullAuthFailure(t *testing.T) { t.Errorf("expected Unauthenticated, got %v (%v)", got, err) } } + +// errStream returns an error on Send; used to exercise the "stream.Send +// failed" branches in handlePullWithRepo. +type errStream struct { + fakeStream + sendErr error +} + +func (s *errStream) Send(r *oraspb.PullResponse) error { return s.sendErr } + +// newCustomRegistry serves a manifest+blob the test can fully control: the +// supplied manifest body and blob body are returned verbatim. Useful for +// injecting multi-layer manifests or a 500 on the blob endpoint. +func newCustomRegistry(t *testing.T, mfBytes []byte, mfDigest, layerDigest string, layerHandler http.HandlerFunc) *httptest.Server { + t.Helper() + mux := http.NewServeMux() + mux.HandleFunc("/v2/", func(w http.ResponseWriter, r *http.Request) { + switch { + case r.URL.Path == "/v2/" || r.URL.Path == "/v2": + w.WriteHeader(200) + case strings.HasSuffix(r.URL.Path, "/manifests/v1") || strings.HasSuffix(r.URL.Path, "/manifests/"+mfDigest): + w.Header().Set("Content-Type", ocispec.MediaTypeImageManifest) + w.Header().Set("Docker-Content-Digest", mfDigest) + w.Header().Set("Content-Length", fmt.Sprint(len(mfBytes))) + if r.Method == http.MethodHead { + w.WriteHeader(200) + return + } + w.Write(mfBytes) + case layerDigest != "" && strings.HasSuffix(r.URL.Path, "/blobs/"+layerDigest): + layerHandler(w, r) + default: + http.NotFound(w, r) + } + }) + srv := httptest.NewServer(mux) + t.Cleanup(srv.Close) + return srv +} + +// makeManifest returns serialized manifest bytes + its sha256 digest. +func makeManifest(t *testing.T, layers []ocispec.Descriptor) ([]byte, string) { + t.Helper() + m := ocispec.Manifest{MediaType: ocispec.MediaTypeImageManifest, Layers: layers} + m.SchemaVersion = 2 + b, err := json.Marshal(m) + if err != nil { + t.Fatal(err) + } + sum := sha256.Sum256(b) + return b, "sha256:" + hex.EncodeToString(sum[:]) +} + +func mkReq(host, dst string) *oraspb.PullRequest { + return &oraspb.PullRequest{ + Registry: host, + Repository: "ns/repo", + Reference: &oraspb.PullRequest_Tag{Tag: "v1"}, + LocalPath: dst, + } +} + +func mkRepo(t *testing.T, req *oraspb.PullRequest) *remote.Repository { + t.Helper() + repo, err := newRepository(req) + if err != nil { + t.Fatal(err) + } + repo.PlainHTTP = true + return repo +} + +// TestHandlePullMultiLayerManifest: manifest with 2 layers must be rejected +// by pickSingleLayer. +func TestHandlePullMultiLayerManifest(t *testing.T) { + layers := []ocispec.Descriptor{ + {MediaType: "application/octet-stream", Digest: digest.Digest("sha256:" + strings.Repeat("a", 64)), Size: 1}, + {MediaType: "application/octet-stream", Digest: digest.Digest("sha256:" + strings.Repeat("b", 64)), Size: 1}, + } + mfBytes, mfDigest := makeManifest(t, layers) + srv := newCustomRegistry(t, mfBytes, mfDigest, "", nil) + dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) + defer os.Remove(dst) + req := mkReq(registryHost(t, srv), dst) + err := handlePullWithRepo(req, &fakeStream{ctx: context.Background()}, mkRepo(t, req)) + if err == nil { + t.Fatal("expected error") + } + if got := mustStatus(t, err).Code(); got != codes.InvalidArgument { + t.Errorf("expected InvalidArgument, got %v (%v)", got, err) + } +} + +// TestHandlePullStartedSendError: stream.Send for PullStarted fails. Covers +// the early Send-error branch. +func TestHandlePullStartedSendError(t *testing.T) { + payload := []byte("x") + srv := newFakeRegistry(t, payload, false, "", "") + dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) + defer os.Remove(dst) + req := mkReq(registryHost(t, srv), dst) + stream := &errStream{ + fakeStream: fakeStream{ctx: context.Background()}, + sendErr: fmt.Errorf("stream broken"), + } + err := handlePullWithRepo(req, stream, mkRepo(t, req)) + if err == nil || !strings.Contains(err.Error(), "stream broken") { + t.Errorf("expected stream broken error, got %v", err) + } +} + +// TestHandlePullMkdirTempError: local_path under /tmp but the parent dir does +// not exist, so MkdirTemp fails. +func TestHandlePullMkdirTempError(t *testing.T) { + payload := []byte("x") + srv := newFakeRegistry(t, payload, false, "", "") + dst := fmt.Sprintf("/tmp/no-such-dir-%d/out.bin", os.Getpid()) + req := mkReq(registryHost(t, srv), dst) + err := handlePullWithRepo(req, &fakeStream{ctx: context.Background()}, mkRepo(t, req)) + if err == nil { + t.Fatal("expected error") + } + if got := mustStatus(t, err).Code(); got != codes.Internal { + t.Errorf("expected Internal, got %v (%v)", got, err) + } +} + +// TestHandlePullBlobFetchError: server returns 500 on the blob endpoint, so +// fetchLayerWithProgress fails. +func TestHandlePullBlobFetchError(t *testing.T) { + payload := []byte("hello") + layerSum := sha256.Sum256(payload) + layerDigest := "sha256:" + hex.EncodeToString(layerSum[:]) + layers := []ocispec.Descriptor{{ + MediaType: "application/octet-stream", + Digest: digest.Digest(layerDigest), + Size: int64(len(payload)), + }} + mfBytes, mfDigest := makeManifest(t, layers) + srv := newCustomRegistry(t, mfBytes, mfDigest, layerDigest, func(w http.ResponseWriter, r *http.Request) { + http.Error(w, "boom", http.StatusInternalServerError) + }) + dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) + defer os.Remove(dst) + req := mkReq(registryHost(t, srv), dst) + err := handlePullWithRepo(req, &fakeStream{ctx: context.Background()}, mkRepo(t, req)) + if err == nil { + t.Fatal("expected error") + } +} + +// TestCopyAndRemoveDstError covers the dst-open failure branch of copyAndRemove. +func TestCopyAndRemoveDstError(t *testing.T) { + dir := t.TempDir() + src := filepath.Join(dir, "src") + if err := os.WriteFile(src, []byte("x"), 0644); err != nil { + t.Fatal(err) + } + // Make a read-only subdir and aim dst into it. + ro := filepath.Join(dir, "ro") + if err := os.Mkdir(ro, 0500); err != nil { + t.Fatal(err) + } + t.Cleanup(func() { os.Chmod(ro, 0700) }) + if err := copyAndRemove(src, filepath.Join(ro, "dst")); err == nil { + t.Errorf("expected dst-open error") + } +} From 6a0bac30bbf98f9679e34db0566a53dacc8fbdc3 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 12:54:09 -0500 Subject: [PATCH 11/14] pkg/gnoi/oras: address review feedback - Serialize stream.Send through a safeStream mutex; close progressDone before final Send (and wait for the progress goroutine to exit) so the progress goroutine can never race with PullResult. - Restrict os.Rename copy-and-delete fallback to EXDEV only; surface permission / target-is-dir / etc. errors as-is instead of silently masking them. - Replace substring-based mapRegistryError with errors.As inspection of errcode.ErrorResponse, errdef.ErrNotFound, net.OpError/DNSError, net.Error.Timeout(), and syscall.ECONNREFUSED / ENOSPC. Adds PermissionDenied for 403. - validateLocalPath: walk path components for literal '..' segments instead of strings.Contains, which over-rejected names like 'a..b'. - Drop the dead '_ = oras.Copy' line and the oras-go top-level import. - Rename jsonUnmarshalStrict -> parseManifest; comment matches behavior. - proto: redact registry hostname example; move PoC-subset scope notes from the file-level comment (which protoc-gen-go places in front of the DO NOT EDIT marker) to the Oras service comment; regen pb.go. - Tests: switch hard-coded /tmp/oras-test-.bin paths to a per-test MkdirTemp helper under /tmp; rename proto_clone -> protoClone; add TestIsCrossDeviceError; rework TestMapRegistryError to use typed errors. Signed-off-by: Dawei Huang --- pkg/gnoi/oras/json.go | 10 +-- pkg/gnoi/oras/oras.go | 140 ++++++++++++++++++++++++++-------- pkg/gnoi/oras/oras_test.go | 150 ++++++++++++++++++++++++++++--------- proto/gnoi/oras/oras.pb.go | 16 ++-- proto/gnoi/oras/oras.proto | 19 ++--- 5 files changed, 243 insertions(+), 92 deletions(-) diff --git a/pkg/gnoi/oras/json.go b/pkg/gnoi/oras/json.go index 0fb8f081b..1e5277502 100644 --- a/pkg/gnoi/oras/json.go +++ b/pkg/gnoi/oras/json.go @@ -2,11 +2,9 @@ package oras import "encoding/json" -// jsonUnmarshalStrict is a tiny wrapper that rejects unknown fields. We use -// it only for the OCI manifest, which is a well-defined schema. -func jsonUnmarshalStrict(data []byte, v interface{}) error { - // Keep tolerant for now: oras.land/oras-go writes annotations we don't - // care about; reject-unknown would be too strict against future spec - // fields. Stay lenient. +// parseManifest decodes an OCI image manifest. Lenient on unknown fields: +// oras-go writes annotations we don't care about, and rejecting unknown +// fields would also break against forward-compatible spec changes. +func parseManifest(data []byte, v interface{}) error { return json.Unmarshal(data, v) } diff --git a/pkg/gnoi/oras/oras.go b/pkg/gnoi/oras/oras.go index 6759941b8..83f59bacd 100644 --- a/pkg/gnoi/oras/oras.go +++ b/pkg/gnoi/oras/oras.go @@ -8,14 +8,18 @@ package oras import ( "context" + "errors" "fmt" "io" + "net" "net/http" "net/url" "os" "path/filepath" "strings" + "sync" "sync/atomic" + "syscall" "time" log "github.com/golang/glog" @@ -24,10 +28,11 @@ import ( "google.golang.org/protobuf/types/known/durationpb" ocispec "github.com/opencontainers/image-spec/specs-go/v1" - "oras.land/oras-go/v2" "oras.land/oras-go/v2/content/file" + "oras.land/oras-go/v2/errdef" "oras.land/oras-go/v2/registry/remote" "oras.land/oras-go/v2/registry/remote/auth" + "oras.land/oras-go/v2/registry/remote/errcode" "oras.land/oras-go/v2/registry/remote/retry" oraspb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" @@ -58,11 +63,28 @@ func HandlePull(req *oraspb.PullRequest, stream oraspb.Oras_PullServer) error { return handlePullWithRepo(req, stream, repo) } +// safeStream wraps an Oras_PullServer with a mutex so that progressLoop and +// the main goroutine can both Send without racing on the gRPC stream. +// gRPC's ServerStream.Send is not safe for concurrent use. +type safeStream struct { + mu sync.Mutex + stream oraspb.Oras_PullServer +} + +func (s *safeStream) Send(r *oraspb.PullResponse) error { + s.mu.Lock() + defer s.mu.Unlock() + return s.stream.Send(r) +} + +func (s *safeStream) Context() context.Context { return s.stream.Context() } + // handlePullWithRepo is the testable seam: HandlePull does request validation // and constructs the repository, then delegates here. Tests construct the // repository themselves (e.g. with PlainHTTP=true against an httptest server). func handlePullWithRepo(req *oraspb.PullRequest, stream oraspb.Oras_PullServer, repo *remote.Repository) error { - ctx := stream.Context() + ss := &safeStream{stream: stream} + ctx := ss.Context() started := time.Now() ref := pullReference(req) @@ -89,7 +111,7 @@ func handlePullWithRepo(req *oraspb.PullRequest, stream oraspb.Oras_PullServer, return err } - if err := stream.Send(&oraspb.PullResponse{ + if err := ss.Send(&oraspb.PullResponse{ Event: &oraspb.PullResponse_Started{ Started: &oraspb.PullStarted{ ManifestDigest: manifestDesc.Digest.String(), @@ -129,24 +151,41 @@ func handlePullWithRepo(req *oraspb.PullRequest, stream oraspb.Oras_PullServer, // non-Copy fetches, so we tee the fetch through a tracked reader. var transferred atomic.Uint64 progressDone := make(chan struct{}) - go progressLoop(ctx, stream, &transferred, uint64(layer.Size), progressDone) - defer func() { close(progressDone) }() + progressExited := make(chan struct{}) + go func() { + progressLoop(ctx, ss, &transferred, uint64(layer.Size), progressDone) + close(progressExited) + }() + + fetchErr := fetchLayerWithProgress(ctx, repo, annotated, fs, &transferred) - if err := fetchLayerWithProgress(ctx, repo, annotated, fs, &transferred); err != nil { - return mapRegistryError(err, "fetch layer") + // Stop the progress goroutine and wait for it to drain before any + // further Send on the stream, so the final PullResult can never race + // with a PullProgress (even though safeStream would serialize them). + close(progressDone) + <-progressExited + + if fetchErr != nil { + return mapRegistryError(fetchErr, "fetch layer") } // Move the layer file into place. file.Store wrote it as stagingName // inside stagingDir. srcPath := filepath.Join(stagingDir, stagingName) if err := os.Rename(srcPath, req.GetLocalPath()); err != nil { - // Rename across filesystems falls back to copy-and-delete. + // Only fall back to copy-and-delete for cross-filesystem renames; + // every other os.Rename failure (perm, target-is-dir, etc.) is + // surfaced as-is so it shows up in logs and the gRPC error. + if !isCrossDeviceError(err) { + return status.Errorf(codes.Internal, "rename to local_path: %v", err) + } + log.V(1).Infof("[Oras.Pull] rename %s -> %s: %v; falling back to copy", srcPath, req.GetLocalPath(), err) if err := copyAndRemove(srcPath, req.GetLocalPath()); err != nil { - return status.Errorf(codes.Internal, "stage to local_path: %v", err) + return status.Errorf(codes.Internal, "copy to local_path: %v", err) } } - return stream.Send(&oraspb.PullResponse{ + return ss.Send(&oraspb.PullResponse{ Event: &oraspb.PullResponse_Result{ Result: &oraspb.PullResult{ ManifestDigest: manifestDesc.Digest.String(), @@ -159,6 +198,16 @@ func handlePullWithRepo(req *oraspb.PullRequest, stream oraspb.Oras_PullServer, }) } +// isCrossDeviceError reports whether err is an os.Rename failure caused by +// src and dst being on different filesystems (EXDEV). +func isCrossDeviceError(err error) bool { + var le *os.LinkError + if errors.As(err, &le) { + return errors.Is(le.Err, syscall.EXDEV) + } + return errors.Is(err, syscall.EXDEV) +} + func validatePullRequest(req *oraspb.PullRequest) error { if req == nil { return status.Error(codes.InvalidArgument, "request cannot be nil") @@ -191,8 +240,13 @@ func validateLocalPath(p string) error { if !filepath.IsAbs(cleaned) { return fmt.Errorf("path must be absolute, got: %s", p) } - if strings.Contains(cleaned, "..") { - return fmt.Errorf("path traversal not allowed: %s", p) + // filepath.Clean has already collapsed any real `..` traversal segments + // against the absolute root. Any `..` left can only be a literal path + // component, so reject only segments that equal "..", not substrings. + for _, seg := range strings.Split(cleaned, string(filepath.Separator)) { + if seg == ".." { + return fmt.Errorf("path traversal not allowed: %s", p) + } } for _, prefix := range allowedPathPrefixes { if strings.HasPrefix(cleaned, prefix) { @@ -240,7 +294,7 @@ func newRepository(req *oraspb.PullRequest) (*remote.Repository, error) { func pickSingleLayer(manifest []byte) (ocispec.Descriptor, error) { var m ocispec.Manifest - if err := jsonUnmarshalStrict(manifest, &m); err != nil { + if err := parseManifest(manifest, &m); err != nil { return ocispec.Descriptor{}, status.Errorf(codes.Internal, "parse manifest: %v", err) } if len(m.Layers) != 1 { @@ -251,9 +305,7 @@ func pickSingleLayer(manifest []byte) (ocispec.Descriptor, error) { } // fetchLayerWithProgress copies a single layer descriptor into the file store -// while updating the transferred counter. We use oras.Copy to leverage the -// graph machinery, but with an artificial intermediate that lets us tee the -// blob stream through a counter. +// while updating the transferred counter. func fetchLayerWithProgress(ctx context.Context, src *remote.Repository, layer ocispec.Descriptor, dst *file.Store, transferred *atomic.Uint64) error { rc, err := src.Fetch(ctx, layer) if err != nil { @@ -262,14 +314,10 @@ func fetchLayerWithProgress(ctx context.Context, src *remote.Repository, layer o defer rc.Close() tr := &countingReader{r: rc, n: transferred} - if err := dst.Push(ctx, layer, tr); err != nil { - return err - } - _ = oras.Copy // keep import in case we switch to oras.Copy later - return nil + return dst.Push(ctx, layer, tr) } -func progressLoop(ctx context.Context, stream oraspb.Oras_PullServer, transferred *atomic.Uint64, total uint64, done <-chan struct{}) { +func progressLoop(ctx context.Context, stream *safeStream, transferred *atomic.Uint64, total uint64, done <-chan struct{}) { tick := time.NewTicker(progressInterval) defer tick.Stop() for { @@ -334,21 +382,51 @@ func copyAndRemove(src, dst string) error { } // mapRegistryError translates oras-go / network errors into gRPC status codes -// that match the design doc. +// that match the design doc. Prefers typed-error inspection over substring +// matching so that unrelated error text containing words like "404" or +// "not found" does not get misclassified. func mapRegistryError(err error, op string) error { if err == nil { return nil } - msg := err.Error() - switch { - case strings.Contains(msg, "401") || strings.Contains(msg, "Unauthorized") || strings.Contains(msg, "authentication required"): - return status.Errorf(codes.Unauthenticated, "%s: %v", op, err) - case strings.Contains(msg, "no such host") || strings.Contains(msg, "connection refused") || strings.Contains(msg, "timeout"): - return status.Errorf(codes.Unavailable, "%s: %v", op, err) - case strings.Contains(msg, "404") || strings.Contains(msg, "not found"): + + // oras-go typed errors. + var ec *errcode.ErrorResponse + if errors.As(err, &ec) { + switch ec.StatusCode { + case http.StatusUnauthorized: + return status.Errorf(codes.Unauthenticated, "%s: %v", op, err) + case http.StatusForbidden: + return status.Errorf(codes.PermissionDenied, "%s: %v", op, err) + case http.StatusNotFound: + return status.Errorf(codes.NotFound, "%s: %v", op, err) + } + } + if errors.Is(err, errdef.ErrNotFound) { return status.Errorf(codes.NotFound, "%s: %v", op, err) - case strings.Contains(msg, "no space left on device"): + } + + // Network-level classification. + var ne net.Error + if errors.As(err, &ne) && ne.Timeout() { + return status.Errorf(codes.Unavailable, "%s: %v", op, err) + } + var dnsErr *net.DNSError + if errors.As(err, &dnsErr) { + return status.Errorf(codes.Unavailable, "%s: %v", op, err) + } + var opErr *net.OpError + if errors.As(err, &opErr) { + return status.Errorf(codes.Unavailable, "%s: %v", op, err) + } + if errors.Is(err, syscall.ECONNREFUSED) { + return status.Errorf(codes.Unavailable, "%s: %v", op, err) + } + + // Disk-full is a syscall errno on Linux. + if errors.Is(err, syscall.ENOSPC) { return status.Errorf(codes.ResourceExhausted, "%s: %v", op, err) } + return status.Errorf(codes.Internal, "%s: %v", op, err) } diff --git a/pkg/gnoi/oras/oras_test.go b/pkg/gnoi/oras/oras_test.go index 000f103ff..03fa82c03 100644 --- a/pkg/gnoi/oras/oras_test.go +++ b/pkg/gnoi/oras/oras_test.go @@ -8,6 +8,7 @@ import ( "errors" "fmt" "io" + "net" "net/http" "net/http/httptest" "net/url" @@ -15,6 +16,7 @@ import ( "path/filepath" "strings" "sync/atomic" + "syscall" "testing" "github.com/opencontainers/go-digest" @@ -22,8 +24,10 @@ import ( "google.golang.org/grpc/codes" "google.golang.org/grpc/status" "google.golang.org/protobuf/proto" + "oras.land/oras-go/v2/errdef" "oras.land/oras-go/v2/registry/remote" "oras.land/oras-go/v2/registry/remote/auth" + "oras.land/oras-go/v2/registry/remote/errcode" oraspb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" ) @@ -39,6 +43,22 @@ func mustStatus(t *testing.T, err error) *status.Status { return s } +// tmpUnderTmp returns a unique directory under /tmp (which is in the path +// allowlist) and registers a cleanup. t.TempDir() can't be used in tests +// that go through validateLocalPath because the test runner's $TMPDIR may +// live elsewhere (e.g. $HOME/tmp), outside the allowlist. +func tmpUnderTmp(t *testing.T) string { + t.Helper() + dir, err := os.MkdirTemp("/tmp", "oras-test-") + if err != nil { + t.Fatal(err) + } + t.Cleanup(func() { os.RemoveAll(dir) }) + return dir +} + +func tmpDst(t *testing.T) string { return filepath.Join(tmpUnderTmp(t), "out.bin") } + // ---------- validatePullRequest ---------- func TestValidatePullRequest(t *testing.T) { @@ -71,7 +91,7 @@ func TestValidatePullRequest(t *testing.T) { for _, tc := range cases { t.Run(tc.name, func(t *testing.T) { - req := proto_clone(good) + req := protoClone(good) tc.mut(req) err := validatePullRequest(req) if tc.code == codes.OK { @@ -96,7 +116,7 @@ func TestValidatePullRequest(t *testing.T) { }) } -func proto_clone(r *oraspb.PullRequest) *oraspb.PullRequest { +func protoClone(r *oraspb.PullRequest) *oraspb.PullRequest { return proto.Clone(r).(*oraspb.PullRequest) } @@ -158,27 +178,76 @@ func TestMapRegistryError(t *testing.T) { if mapRegistryError(nil, "op") != nil { t.Errorf("nil should pass through") } - cases := []struct { - msg string - code codes.Code - }{ - {"401 Unauthorized", codes.Unauthenticated}, - {"authentication required", codes.Unauthenticated}, - {"dial tcp: lookup x: no such host", codes.Unavailable}, - {"connection refused", codes.Unavailable}, - {"i/o timeout", codes.Unavailable}, - {"404 not found", codes.NotFound}, - {"write /tmp/x: no space left on device", codes.ResourceExhausted}, - {"boom", codes.Internal}, - } - for _, c := range cases { - got := mustStatus(t, mapRegistryError(errors.New(c.msg), "op")).Code() - if got != c.code { - t.Errorf("%q: want %v got %v", c.msg, c.code, got) + + t.Run("plain error -> Internal", func(t *testing.T) { + got := mustStatus(t, mapRegistryError(errors.New("boom"), "op")).Code() + if got != codes.Internal { + t.Errorf("got %v", got) } - } + }) + + t.Run("errcode 401 -> Unauthenticated", func(t *testing.T) { + err := &errcode.ErrorResponse{StatusCode: http.StatusUnauthorized, URL: &url.URL{}, Method: "GET"} + got := mustStatus(t, mapRegistryError(err, "op")).Code() + if got != codes.Unauthenticated { + t.Errorf("got %v", got) + } + }) + + t.Run("errcode 403 -> PermissionDenied", func(t *testing.T) { + err := &errcode.ErrorResponse{StatusCode: http.StatusForbidden, URL: &url.URL{}, Method: "GET"} + if got := mustStatus(t, mapRegistryError(err, "op")).Code(); got != codes.PermissionDenied { + t.Errorf("got %v", got) + } + }) + + t.Run("errcode 404 -> NotFound", func(t *testing.T) { + err := &errcode.ErrorResponse{StatusCode: http.StatusNotFound, URL: &url.URL{}, Method: "GET"} + if got := mustStatus(t, mapRegistryError(err, "op")).Code(); got != codes.NotFound { + t.Errorf("got %v", got) + } + }) + + t.Run("errdef.ErrNotFound -> NotFound", func(t *testing.T) { + if got := mustStatus(t, mapRegistryError(errdef.ErrNotFound, "op")).Code(); got != codes.NotFound { + t.Errorf("got %v", got) + } + }) + + t.Run("ECONNREFUSED -> Unavailable", func(t *testing.T) { + err := &net.OpError{Op: "dial", Net: "tcp", Err: syscall.ECONNREFUSED} + if got := mustStatus(t, mapRegistryError(err, "op")).Code(); got != codes.Unavailable { + t.Errorf("got %v", got) + } + }) + + t.Run("dns error -> Unavailable", func(t *testing.T) { + err := &net.DNSError{Err: "no such host", Name: "x"} + if got := mustStatus(t, mapRegistryError(err, "op")).Code(); got != codes.Unavailable { + t.Errorf("got %v", got) + } + }) + + t.Run("timeout -> Unavailable", func(t *testing.T) { + err := &timeoutErr{} + if got := mustStatus(t, mapRegistryError(err, "op")).Code(); got != codes.Unavailable { + t.Errorf("got %v", got) + } + }) + + t.Run("ENOSPC -> ResourceExhausted", func(t *testing.T) { + if got := mustStatus(t, mapRegistryError(syscall.ENOSPC, "op")).Code(); got != codes.ResourceExhausted { + t.Errorf("got %v", got) + } + }) } +type timeoutErr struct{} + +func (timeoutErr) Error() string { return "i/o timeout" } +func (timeoutErr) Timeout() bool { return true } +func (timeoutErr) Temporary() bool { return true } + // ---------- countingReader ---------- func TestCountingReader(t *testing.T) { @@ -218,14 +287,14 @@ func TestCopyAndRemove(t *testing.T) { } } -// ---------- jsonUnmarshalStrict ---------- +// ---------- parseManifest ---------- func TestJsonUnmarshalStrict(t *testing.T) { var v map[string]any - if err := jsonUnmarshalStrict([]byte(`{"a":1}`), &v); err != nil || v["a"].(float64) != 1 { + if err := parseManifest([]byte(`{"a":1}`), &v); err != nil || v["a"].(float64) != 1 { t.Errorf("ok case: v=%v err=%v", v, err) } - if err := jsonUnmarshalStrict([]byte(`not json`), &v); err == nil { + if err := parseManifest([]byte(`not json`), &v); err == nil { t.Errorf("expected error on bad json") } } @@ -289,8 +358,7 @@ func TestHandlePullValidationShortCircuit(t *testing.T) { // must succeed; the actual resolve fails. This covers HandlePull lines that // delegate into handlePullWithRepo after a successful construction. func TestHandlePullEndToEnd(t *testing.T) { - dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) - defer os.Remove(dst) + dst := tmpDst(t) req := &oraspb.PullRequest{ Registry: "127.0.0.1:1", // guaranteed connection refused Repository: "ns/repo", @@ -426,8 +494,7 @@ func registryHost(t *testing.T, srv *httptest.Server) string { func TestHandlePullHappyPath(t *testing.T) { payload := []byte("hello-image-bytes") srv := newFakeRegistry(t, payload, false, "", "") - dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) - defer os.Remove(dst) + dst := tmpDst(t) req := &oraspb.PullRequest{ Registry: registryHost(t, srv), @@ -473,8 +540,7 @@ func TestHandlePullHappyPath(t *testing.T) { func TestHandlePullAuthFailure(t *testing.T) { srv := newFakeRegistry(t, []byte("x"), true, "right", "right") - dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) - defer os.Remove(dst) + dst := tmpDst(t) req := &oraspb.PullRequest{ Registry: registryHost(t, srv), @@ -580,8 +646,7 @@ func TestHandlePullMultiLayerManifest(t *testing.T) { } mfBytes, mfDigest := makeManifest(t, layers) srv := newCustomRegistry(t, mfBytes, mfDigest, "", nil) - dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) - defer os.Remove(dst) + dst := tmpDst(t) req := mkReq(registryHost(t, srv), dst) err := handlePullWithRepo(req, &fakeStream{ctx: context.Background()}, mkRepo(t, req)) if err == nil { @@ -597,8 +662,7 @@ func TestHandlePullMultiLayerManifest(t *testing.T) { func TestHandlePullStartedSendError(t *testing.T) { payload := []byte("x") srv := newFakeRegistry(t, payload, false, "", "") - dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) - defer os.Remove(dst) + dst := tmpDst(t) req := mkReq(registryHost(t, srv), dst) stream := &errStream{ fakeStream: fakeStream{ctx: context.Background()}, @@ -615,7 +679,7 @@ func TestHandlePullStartedSendError(t *testing.T) { func TestHandlePullMkdirTempError(t *testing.T) { payload := []byte("x") srv := newFakeRegistry(t, payload, false, "", "") - dst := fmt.Sprintf("/tmp/no-such-dir-%d/out.bin", os.Getpid()) + dst := filepath.Join(tmpUnderTmp(t), "no-such-dir", "out.bin") req := mkReq(registryHost(t, srv), dst) err := handlePullWithRepo(req, &fakeStream{ctx: context.Background()}, mkRepo(t, req)) if err == nil { @@ -641,8 +705,7 @@ func TestHandlePullBlobFetchError(t *testing.T) { srv := newCustomRegistry(t, mfBytes, mfDigest, layerDigest, func(w http.ResponseWriter, r *http.Request) { http.Error(w, "boom", http.StatusInternalServerError) }) - dst := filepath.Join("/tmp", fmt.Sprintf("oras-test-%d.bin", os.Getpid())) - defer os.Remove(dst) + dst := tmpDst(t) req := mkReq(registryHost(t, srv), dst) err := handlePullWithRepo(req, &fakeStream{ctx: context.Background()}, mkRepo(t, req)) if err == nil { @@ -667,3 +730,18 @@ func TestCopyAndRemoveDstError(t *testing.T) { t.Errorf("expected dst-open error") } } + +func TestIsCrossDeviceError(t *testing.T) { + if !isCrossDeviceError(syscall.EXDEV) { + t.Errorf("bare EXDEV should match") + } + if !isCrossDeviceError(&os.LinkError{Op: "rename", Old: "a", New: "b", Err: syscall.EXDEV}) { + t.Errorf("LinkError-wrapped EXDEV should match") + } + if isCrossDeviceError(syscall.EPERM) { + t.Errorf("non-EXDEV should not match") + } + if isCrossDeviceError(&os.LinkError{Op: "rename", Old: "a", New: "b", Err: syscall.EACCES}) { + t.Errorf("LinkError EACCES should not match") + } +} diff --git a/proto/gnoi/oras/oras.pb.go b/proto/gnoi/oras/oras.pb.go index b741b5992..3ba63ed88 100644 --- a/proto/gnoi/oras/oras.pb.go +++ b/proto/gnoi/oras/oras.pb.go @@ -9,18 +9,14 @@ // // This file defines a SONiC gNOI service that pulls OCI/ORAS artifacts -// (e.g. SONiC OS images stored in an Azure Container Registry) from a remote -// registry into local storage on the target. See doc/oras-pull-design.md for -// the full design. -// -// This is the PoC subset: a single Pull RPC, anonymous + basic auth, single -// layer artifacts written to local_path. List/Delete and richer features are -// tracked in the design doc. +// (e.g. SONiC OS images stored in an OCI registry) from a remote registry +// into local storage on the target. See doc/oras-pull-design.md for the +// full design. // Code generated by protoc-gen-go. DO NOT EDIT. // versions: // protoc-gen-go v1.33.0 -// protoc v3.21.12 +// protoc v6.31.1 // source: oras.proto package oras @@ -50,9 +46,9 @@ type PullRequest struct { sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields - // Required. Registry hostname, e.g. "ksdatatest.azurecr.io". + // Required. Registry hostname, e.g. "registry.example.com". Registry string `protobuf:"bytes,1,opt,name=registry,proto3" json:"registry,omitempty"` - // Required. Repository within the registry, e.g. "sonic-os-images". + // Required. Repository within the registry, e.g. "namespace/image". Repository string `protobuf:"bytes,2,opt,name=repository,proto3" json:"repository,omitempty"` // Required. Exactly one of tag/digest must be set. // diff --git a/proto/gnoi/oras/oras.proto b/proto/gnoi/oras/oras.proto index 2e7a30a7b..0ee94317b 100644 --- a/proto/gnoi/oras/oras.proto +++ b/proto/gnoi/oras/oras.proto @@ -9,13 +9,9 @@ // // This file defines a SONiC gNOI service that pulls OCI/ORAS artifacts -// (e.g. SONiC OS images stored in an Azure Container Registry) from a remote -// registry into local storage on the target. See doc/oras-pull-design.md for -// the full design. -// -// This is the PoC subset: a single Pull RPC, anonymous + basic auth, single -// layer artifacts written to local_path. List/Delete and richer features are -// tracked in the design doc. +// (e.g. SONiC OS images stored in an OCI registry) from a remote registry +// into local storage on the target. See doc/oras-pull-design.md for the +// full design. syntax = "proto3"; package sonic.gnoi.oras.v1; @@ -27,6 +23,11 @@ option go_package = "./;oras"; option (.gnoi.types.gnoi_version) = "0.1.0"; +// Oras is a SONiC-specific gNOI service for OCI/ORAS pulls. +// +// PoC subset: a single Pull RPC, anonymous + basic auth, single-layer +// artifacts written to local_path. List/Delete and richer features are +// tracked in the design doc. service Oras { // Pull fetches an OCI/ORAS artifact from a registry into a local file on // the target. The response stream emits a single PullStarted message once @@ -47,10 +48,10 @@ service Oras { } message PullRequest { - // Required. Registry hostname, e.g. "ksdatatest.azurecr.io". + // Required. Registry hostname, e.g. "registry.example.com". string registry = 1; - // Required. Repository within the registry, e.g. "sonic-os-images". + // Required. Repository within the registry, e.g. "namespace/image". string repository = 2; // Required. Exactly one of tag/digest must be set. From 6a57c42ce7579714c43889f70b88d7ca034b09a0 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 13:55:20 -0500 Subject: [PATCH 12/14] pkg/gnoi/oras: drop http_proxy from PullRequest, lean on env vars MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit http_proxy on the wire mixes ops policy into the RPC contract. Go's http.DefaultTransport already honors the standard HTTP_PROXY / HTTPS_PROXY / NO_PROXY env vars via http.ProxyFromEnvironment, and lab testbeds can inject those on the gnmi process (e.g. via /usr/bin/gnmi-native.sh). Production switches with a default route to the registry need no configuration. Also trims the design doc's PullRequest example: removes media_type_filter, source_address, source_vrf, skip_if_exists, expected_manifest_digest — all speculative v2+ knobs that don't belong in the first cut. Lists them in a 'deliberately deferred' section so the rationale is preserved. Regenerates oras.pb.go to drop field #7. Signed-off-by: Dawei Huang --- doc/oras-pull-design.md | 61 ++++++++--------- pkg/gnoi/oras/oras.go | 19 ++---- pkg/gnoi/oras/oras_test.go | 5 +- proto/gnoi/oras/oras.pb.go | 135 +++++++++++++++++-------------------- proto/gnoi/oras/oras.proto | 5 -- 5 files changed, 96 insertions(+), 129 deletions(-) diff --git a/doc/oras-pull-design.md b/doc/oras-pull-design.md index c1bec2bd0..58a83a402 100644 --- a/doc/oras-pull-design.md +++ b/doc/oras-pull-design.md @@ -101,10 +101,10 @@ service Oras { ```proto message PullRequest { - // Required. Registry hostname[:port], e.g. "ksdatatest.azurecr.io". + // Required. Registry hostname[:port], e.g. "registry.example.com". string registry = 1; - // Required. Repository within the registry, e.g. "sonic-os-images". + // Required. Repository within the registry, e.g. "namespace/image". string repository = 2; // Required. Exactly one of tag/digest must be set. If both are set the @@ -117,52 +117,47 @@ message PullRequest { // Auth for the pull. Unset == anonymous. AuthConfig auth = 5; - - // Optional. If set, only layers whose mediaType matches one of these - // are downloaded. Empty == all layers in the manifest. - // Use case: a SONiC OS artifact wrapping multiple files — fetch only the - // `.bin` layer, skip side-car SBOMs / signatures. - repeated string media_type_filter = 6; - - // Optional. Source address used for outbound connections (parity with - // gnoi.common.RemoteDownload). - string source_address = 7; - // Optional. Source VRF. - string source_vrf = 8; - - // Optional. HTTP(S) proxy (e.g. "http://10.250.0.1:8888"). Required on - // testbeds where the registry is not reachable via the default route. - string http_proxy = 9; - - // Optional. If true and the resolved manifest digest already exists in - // the local store, return success immediately without re-pulling. - bool skip_if_exists = 10; - - // Optional. Pre-pull guard: if set and the resolved manifest digest does - // not match, fail with FAILED_PRECONDITION before writing any bytes. - string expected_manifest_digest = 11; } message AuthConfig { oneof mode { - bool anonymous = 1; + Anonymous anonymous = 1; BasicAuth basic = 2; BearerAuth bearer = 3; WorkloadIdentity workload = 4; // preferred } } +message Anonymous {} message BasicAuth { string username = 1; string password = 2; } message BearerAuth { string token = 1; } message WorkloadIdentity { - // Identifier of an AAD federated identity already provisioned on the device - // (e.g. via a sonic-host-services agent). The server exchanges it for an - // ACR access token at pull time. No secret material crosses the RPC. + // Identifier of a federated identity already provisioned on the device + // (e.g. via a sonic-host-services agent). The server exchanges it for a + // registry access token at pull time. No secret material crosses the RPC. string identity_name = 1; - // Optional. ACR resource scope, e.g. "https://management.azure.com/.default". + // Optional. Token-exchange resource scope. string resource = 2; } ``` +Out-of-scope-for-v1 knobs deliberately deferred: + +- `media_type_filter` — only meaningful once multi-layer artifacts are + supported. v1 rejects multi-layer manifests, so a filter has nothing to do. +- `source_address` / `source_vrf` — handled one layer down by the routing / + netns configuration; not an app-level RPC concern. Other gNOI services + (`gnoi.os`, `gnoi.system.SetPackage`) don't carry them either. +- `http_proxy` — read from standard `HTTP_PROXY` / `HTTPS_PROXY` / `NO_PROXY` + env vars on the gnmi process (Go's `http.ProxyFromEnvironment`). Lab + testbeds inject these in the gnmi container; production switches with a + default route to the registry need no configuration. +- `skip_if_exists` — requires an on-disk manifest-digest store the agent + doesn't yet keep. Caller idempotency can be approximated today by checking + the artifact at `local_path` before issuing the RPC. +- `expected_manifest_digest` — redundant with the existing `digest` arm of + the `reference` oneof, which already gives the caller a TOCTOU-safe + digest-addressable pull. + ### 3.2 PullResponse ```proto @@ -329,8 +324,8 @@ require an explicit "image-mgmt" role. 3. **Manifest schema validation.** Should the server enforce a SONiC-specific `artifactType` (e.g. `application/vnd.sonic.os-image.v1`) on Pull, or - accept any manifest and let the caller decide via `media_type_filter`? - Current draft does the latter. + accept any manifest and trust the caller? v1 accepts any single-layer + manifest; this can be tightened once we have a canonical artifactType. 4. **Push back: do we even need List/Delete on the device, or should inventory live in the control plane?** Argument for keeping them on-device: diff --git a/pkg/gnoi/oras/oras.go b/pkg/gnoi/oras/oras.go index 83f59bacd..e94bab10e 100644 --- a/pkg/gnoi/oras/oras.go +++ b/pkg/gnoi/oras/oras.go @@ -13,7 +13,6 @@ import ( "io" "net" "net/http" - "net/url" "os" "path/filepath" "strings" @@ -227,11 +226,6 @@ func validatePullRequest(req *oraspb.PullRequest) error { if err := validateLocalPath(req.GetLocalPath()); err != nil { return status.Errorf(codes.FailedPrecondition, "invalid local_path: %v", err) } - if proxy := req.GetHttpProxy(); proxy != "" { - if _, err := url.Parse(proxy); err != nil { - return status.Errorf(codes.InvalidArgument, "invalid http_proxy: %v", err) - } - } return nil } @@ -270,15 +264,14 @@ func newRepository(req *oraspb.PullRequest) (*remote.Repository, error) { return nil, status.Errorf(codes.InvalidArgument, "invalid repository reference %q: %v", repoRef, err) } - transport := http.DefaultTransport.(*http.Transport).Clone() - if proxy := req.GetHttpProxy(); proxy != "" { - u, _ := url.Parse(proxy) - transport.Proxy = http.ProxyURL(u) - } - + // Use http.DefaultTransport so the standard HTTP_PROXY/HTTPS_PROXY/ + // NO_PROXY env vars (honored by http.ProxyFromEnvironment) take effect. + // On lab testbeds where the target needs a proxy to reach the registry, + // set those env vars on the gnmi process; production switches with a + // route to the registry need no configuration. client := &auth.Client{ Client: &http.Client{ - Transport: retry.NewTransport(transport), + Transport: retry.NewTransport(http.DefaultTransport), }, Cache: auth.NewCache(), } diff --git a/pkg/gnoi/oras/oras_test.go b/pkg/gnoi/oras/oras_test.go index 03fa82c03..3a7730c00 100644 --- a/pkg/gnoi/oras/oras_test.go +++ b/pkg/gnoi/oras/oras_test.go @@ -75,7 +75,6 @@ func TestValidatePullRequest(t *testing.T) { code codes.Code }{ {"happy", func(r *oraspb.PullRequest) {}, codes.OK}, - {"happy-with-proxy", func(r *oraspb.PullRequest) { r.HttpProxy = "http://10.0.0.1:8888" }, codes.OK}, {"happy-digest", func(r *oraspb.PullRequest) { r.Reference = &oraspb.PullRequest_Digest{Digest: "sha256:" + strings.Repeat("a", 64)} }, codes.OK}, @@ -86,7 +85,6 @@ func TestValidatePullRequest(t *testing.T) { {"bad-localpath-relative", func(r *oraspb.PullRequest) { r.LocalPath = "out.bin" }, codes.FailedPrecondition}, {"bad-localpath-outside-allowlist", func(r *oraspb.PullRequest) { r.LocalPath = "/etc/passwd" }, codes.FailedPrecondition}, {"bad-localpath-traversal", func(r *oraspb.PullRequest) { r.LocalPath = "/tmp/../etc/passwd" }, codes.FailedPrecondition}, - {"bad-proxy", func(r *oraspb.PullRequest) { r.HttpProxy = "http://[::1" }, codes.InvalidArgument}, } for _, tc := range cases { @@ -308,11 +306,10 @@ func TestNewRepositoryBadRef(t *testing.T) { } } -func TestNewRepositoryWiresCredentialAndProxy(t *testing.T) { +func TestNewRepositoryWiresCredential(t *testing.T) { req := &oraspb.PullRequest{ Registry: "r.example.com", Repository: "ns/repo", - HttpProxy: "http://proxy.local:8888", Auth: &oraspb.AuthConfig{Mode: &oraspb.AuthConfig_Basic{ Basic: &oraspb.BasicAuth{Username: "u", Password: "p"}, }}, diff --git a/proto/gnoi/oras/oras.pb.go b/proto/gnoi/oras/oras.pb.go index 3ba63ed88..ef02783f0 100644 --- a/proto/gnoi/oras/oras.pb.go +++ b/proto/gnoi/oras/oras.pb.go @@ -63,10 +63,6 @@ type PullRequest struct { LocalPath string `protobuf:"bytes,5,opt,name=local_path,json=localPath,proto3" json:"local_path,omitempty"` // Auth for the pull. Unset == anonymous. Auth *AuthConfig `protobuf:"bytes,6,opt,name=auth,proto3" json:"auth,omitempty"` - // Optional. HTTP(S) proxy used for the pull, e.g. "http://10.250.0.1:8888". - // Required on testbeds where the registry is not reachable via the - // device's default route. - HttpProxy string `protobuf:"bytes,7,opt,name=http_proxy,json=httpProxy,proto3" json:"http_proxy,omitempty"` } func (x *PullRequest) Reset() { @@ -150,13 +146,6 @@ func (x *PullRequest) GetAuth() *AuthConfig { return nil } -func (x *PullRequest) GetHttpProxy() string { - if x != nil { - return x.HttpProxy - } - return "" -} - type isPullRequest_Reference interface { isPullRequest_Reference() } @@ -650,7 +639,7 @@ var file_oras_proto_rawDesc = []byte{ 0x6e, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2f, 0x67, 0x6e, 0x6f, 0x69, 0x2f, 0x74, 0x79, 0x70, 0x65, 0x73, 0x2f, 0x74, 0x79, 0x70, 0x65, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x1e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, - 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 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Unset == anonymous. AuthConfig auth = 6; - - // Optional. HTTP(S) proxy used for the pull, e.g. "http://10.250.0.1:8888". - // Required on testbeds where the registry is not reachable via the - // device's default route. - string http_proxy = 7; } message AuthConfig { From 599dd93082becbada2abb92c86656573b52f9c5f Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 14:17:40 -0500 Subject: [PATCH 13/14] pkg/hostfs: add shared host-path validate + container translate helpers New /tmp/, /var/tmp/, /host/ allowlist + /mnt/host bind-mount translation lives in pkg/hostfs. pkg/gnoi/oras switches over so its writes land on the host filesystem (sonic-installer reads from the host /tmp, not the container's tmpfs). internal/diskspace and pkg/gnoi/file still have their own private copies of this logic; migrating them is a follow-up to keep this change focused. Also picks up an existing go.mod entry (opencontainers/go-digest is used directly by the oras tests; promote it from indirect). Signed-off-by: Dawei Huang --- go.mod | 2 +- pkg/gnoi/oras/oras.go | 42 ++++++------------ pkg/hostfs/hostfs.go | 74 +++++++++++++++++++++++++++++++ pkg/hostfs/hostfs_test.go | 92 +++++++++++++++++++++++++++++++++++++++ pure.mk | 1 + 5 files changed, 181 insertions(+), 30 deletions(-) create mode 100644 pkg/hostfs/hostfs.go create mode 100644 pkg/hostfs/hostfs_test.go diff --git a/go.mod b/go.mod index 6ae0c9e2d..ceb819e1e 100644 --- a/go.mod +++ b/go.mod @@ -26,6 +26,7 @@ require ( github.com/openconfig/gnoi v0.3.0 github.com/openconfig/gnsi v1.9.0 github.com/openconfig/ygot v0.7.1 + github.com/opencontainers/go-digest v1.0.0 github.com/opencontainers/image-spec v1.1.1 github.com/redis/go-redis/v9 v9.14.1 github.com/stretchr/testify v1.9.0 @@ -55,7 +56,6 @@ require ( github.com/go-redis/redis/v7 v7.4.1 // indirect github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect github.com/openconfig/goyang v0.0.0-20200309174518-a00bece872fc // indirect - github.com/opencontainers/go-digest v1.0.0 // indirect github.com/philopon/go-toposort v0.0.0-20170620085441-9be86dbd762f // indirect github.com/pmezard/go-difflib v1.0.0 // indirect github.com/rogpeppe/go-internal v1.14.1 // indirect diff --git a/pkg/gnoi/oras/oras.go b/pkg/gnoi/oras/oras.go index e94bab10e..dc960ce22 100644 --- a/pkg/gnoi/oras/oras.go +++ b/pkg/gnoi/oras/oras.go @@ -15,7 +15,6 @@ import ( "net/http" "os" "path/filepath" - "strings" "sync" "sync/atomic" "syscall" @@ -34,6 +33,7 @@ import ( "oras.land/oras-go/v2/registry/remote/errcode" "oras.land/oras-go/v2/registry/remote/retry" + "github.com/sonic-net/sonic-gnmi/pkg/hostfs" oraspb "github.com/sonic-net/sonic-gnmi/proto/gnoi/oras" ) @@ -42,10 +42,6 @@ const ( progressInterval = 1 * time.Second ) -// allowedPathPrefixes mirrors the file-server allowlist in -// pkg/gnoi/file/file.go to keep the on-disk write surface consistent. -var allowedPathPrefixes = []string{"/tmp/", "/var/tmp/", "/host/"} - // HandlePull implements the Pull RPC. The implementation is server-streaming: // it emits a single PullStarted once the manifest is resolved, zero or more // PullProgress messages while bytes are being transferred, and a final @@ -124,7 +120,14 @@ func handlePullWithRepo(req *oraspb.PullRequest, stream oraspb.Oras_PullServer, // Stage the layer into a temporary directory next to local_path, then // rename into place on success. oras-go's file.Store writes by layer // digest into the staging directory; we then move that file to local_path. - dir := filepath.Dir(req.GetLocalPath()) + // + // Translate logical → on-disk path. Inside the gnmi container, + // /tmp/foo on the client becomes /mnt/host/tmp/foo here so the file + // lands on the host root (which is what every real consumer wants — + // e.g. sonic-installer reads from the host's /tmp, not from any + // container-private tmpfs). + hostPath := hostfs.Translate(req.GetLocalPath()) + dir := filepath.Dir(hostPath) stagingDir, err := os.MkdirTemp(dir, ".oras-pull-") if err != nil { return status.Errorf(codes.Internal, "create staging dir: %v", err) @@ -171,15 +174,15 @@ func handlePullWithRepo(req *oraspb.PullRequest, stream oraspb.Oras_PullServer, // Move the layer file into place. file.Store wrote it as stagingName // inside stagingDir. srcPath := filepath.Join(stagingDir, stagingName) - if err := os.Rename(srcPath, req.GetLocalPath()); err != nil { + if err := os.Rename(srcPath, hostPath); err != nil { // Only fall back to copy-and-delete for cross-filesystem renames; // every other os.Rename failure (perm, target-is-dir, etc.) is // surfaced as-is so it shows up in logs and the gRPC error. if !isCrossDeviceError(err) { return status.Errorf(codes.Internal, "rename to local_path: %v", err) } - log.V(1).Infof("[Oras.Pull] rename %s -> %s: %v; falling back to copy", srcPath, req.GetLocalPath(), err) - if err := copyAndRemove(srcPath, req.GetLocalPath()); err != nil { + log.V(1).Infof("[Oras.Pull] rename %s -> %s: %v; falling back to copy", srcPath, hostPath, err) + if err := copyAndRemove(srcPath, hostPath); err != nil { return status.Errorf(codes.Internal, "copy to local_path: %v", err) } } @@ -229,26 +232,7 @@ func validatePullRequest(req *oraspb.PullRequest) error { return nil } -func validateLocalPath(p string) error { - cleaned := filepath.Clean(p) - if !filepath.IsAbs(cleaned) { - return fmt.Errorf("path must be absolute, got: %s", p) - } - // filepath.Clean has already collapsed any real `..` traversal segments - // against the absolute root. Any `..` left can only be a literal path - // component, so reject only segments that equal "..", not substrings. - for _, seg := range strings.Split(cleaned, string(filepath.Separator)) { - if seg == ".." { - return fmt.Errorf("path traversal not allowed: %s", p) - } - } - for _, prefix := range allowedPathPrefixes { - if strings.HasPrefix(cleaned, prefix) { - return nil - } - } - return fmt.Errorf("path must be under %v, got: %s", allowedPathPrefixes, cleaned) -} +func validateLocalPath(p string) error { return hostfs.Validate(p) } func pullReference(req *oraspb.PullRequest) string { if d := req.GetDigest(); d != "" { diff --git a/pkg/hostfs/hostfs.go b/pkg/hostfs/hostfs.go new file mode 100644 index 000000000..e0b9f51e5 --- /dev/null +++ b/pkg/hostfs/hostfs.go @@ -0,0 +1,74 @@ +// Package hostfs centralizes the small bits of host-filesystem awareness +// that every SONiC gNOI service needs: +// +// - Validate: the allowlist of writable staging directories on the host. +// - Translate: prepend /mnt/host when the caller runs inside the gnmi +// container so absolute host paths resolve through the bind mount. +// +// Both pkg/gnoi/file and internal/diskspace already implement equivalent +// logic privately. Those callers are left as-is for now; new services +// (starting with pkg/gnoi/oras) should depend on this package so we have a +// single source of truth going forward. +package hostfs + +import ( + "fmt" + "os" + "path/filepath" + "strings" +) + +// hostMount is the bind-mount path inside the gnmi container where the +// host root filesystem is exposed. Exported as a var rather than a const +// so tests can override it. +var hostMount = "/mnt/host" + +// AllowedPrefixes is the canonical allowlist of writable host directories +// for gNOI staging on SONiC. It mirrors pkg/gnoi/file's whitelist: +// +// - /tmp/ ephemeral staging (firmware images, layer blobs, …) +// - /var/tmp/ same, persisted across reboot +// - /host/ next-image overlay (e.g. /host/image-*/rw/…) +// +// Callers that want to extend the allowlist should add a new prefix here +// in a follow-up rather than building parallel lists. +var AllowedPrefixes = []string{"/tmp/", "/var/tmp/", "/host/"} + +// Validate rejects any path that is not absolute, contains a literal ".." +// segment after cleaning, or falls outside AllowedPrefixes. It does NOT +// touch the filesystem. +func Validate(path string) error { + cleaned := filepath.Clean(path) + if !filepath.IsAbs(cleaned) { + return fmt.Errorf("path must be absolute, got: %s", path) + } + // filepath.Clean collapses traversals against the absolute root, so a + // remaining `..` can only be a literal segment. + for _, seg := range strings.Split(cleaned, string(filepath.Separator)) { + if seg == ".." { + return fmt.Errorf("path traversal not allowed: %s", path) + } + } + for _, prefix := range AllowedPrefixes { + if strings.HasPrefix(cleaned, prefix) { + return nil + } + } + return fmt.Errorf("path must be under %v, got: %s", AllowedPrefixes, cleaned) +} + +// Translate returns the path that should be used by syscalls on the +// current process. When running inside the gnmi container (detected by +// the presence of /mnt/host) it prepends the host-mount prefix; otherwise +// it returns filepath.Clean(path) unchanged. +// +// Translate does NOT validate the path; callers should Validate first. +func Translate(path string) string { + cleaned := filepath.Clean(path) + if _, err := os.Stat(hostMount); err == nil { + if !strings.HasPrefix(cleaned, hostMount) { + return hostMount + cleaned + } + } + return cleaned +} diff --git a/pkg/hostfs/hostfs_test.go b/pkg/hostfs/hostfs_test.go new file mode 100644 index 000000000..1c3166a4b --- /dev/null +++ b/pkg/hostfs/hostfs_test.go @@ -0,0 +1,92 @@ +package hostfs + +import ( + "os" + "path/filepath" + "strings" + "testing" +) + +func TestValidate(t *testing.T) { + cases := []struct { + name string + path string + wantErr string + }{ + {"tmp_ok", "/tmp/firmware.bin", ""}, + {"var_tmp_ok", "/var/tmp/firmware.bin", ""}, + {"host_ok", "/host/image-stage/blob", ""}, + {"nested_ok", "/tmp/sub/dir/file", ""}, + + {"relative", "tmp/firmware.bin", "must be absolute"}, + {"etc_blocked", "/etc/passwd", "must be under"}, + {"root_blocked", "/root/secret", "must be under"}, + {"empty", "", "must be absolute"}, + + // Literal `..` segments that filepath.Clean can't collapse must be + // rejected even when the cleaned path lands in the allowlist. + {"literal_dotdot", "/tmp/..", "must be under"}, + {"embedded_dotdot_collapses_to_root", "/tmp/sub/../../etc/passwd", "must be under"}, + } + for _, tc := range cases { + t.Run(tc.name, func(t *testing.T) { + err := Validate(tc.path) + if tc.wantErr == "" { + if err != nil { + t.Fatalf("Validate(%q): unexpected error %v", tc.path, err) + } + return + } + if err == nil || !strings.Contains(err.Error(), tc.wantErr) { + t.Fatalf("Validate(%q): want error containing %q, got %v", tc.path, tc.wantErr, err) + } + }) + } +} + +func TestTranslate(t *testing.T) { + // Override the mount probe to a private temp dir so tests don't depend + // on whether /mnt/host exists on the host running `go test`. + dir := t.TempDir() + old := hostMount + t.Cleanup(func() { hostMount = old }) + + t.Run("mount_present_prepends", func(t *testing.T) { + hostMount = dir + got := Translate("/tmp/firmware.bin") + want := dir + "/tmp/firmware.bin" + if got != want { + t.Fatalf("Translate: got %q, want %q", got, want) + } + }) + + t.Run("mount_present_idempotent", func(t *testing.T) { + hostMount = dir + // Already-translated paths must not get double-prefixed. + input := dir + "/tmp/firmware.bin" + if got := Translate(input); got != input { + t.Fatalf("Translate idempotent: got %q, want %q", got, input) + } + }) + + t.Run("mount_absent_passthrough", func(t *testing.T) { + hostMount = filepath.Join(dir, "does-not-exist") + // Sanity check our probe really doesn't exist. + if _, err := os.Stat(hostMount); err == nil { + t.Fatalf("test setup: hostMount %q unexpectedly exists", hostMount) + } + got := Translate("/tmp/firmware.bin") + if got != "/tmp/firmware.bin" { + t.Fatalf("Translate: got %q, want passthrough", got) + } + }) + + t.Run("cleans_dotdot_within_root", func(t *testing.T) { + hostMount = filepath.Join(dir, "does-not-exist") + // filepath.Clean collapses .. against the absolute root. + got := Translate("/tmp/sub/../firmware.bin") + if got != "/tmp/firmware.bin" { + t.Fatalf("Translate: got %q, want cleaned path", got) + } + }) +} diff --git a/pure.mk b/pure.mk index f39c1903f..39d359357 100644 --- a/pure.mk +++ b/pure.mk @@ -27,6 +27,7 @@ PURE_PACKAGES := \ pkg/exec \ pkg/gnoi/os \ pkg/gnoi/oras \ + pkg/hostfs \ pkg/gnoi/system # Future packages to make pure: From 6153efdffa0df9b76b48d6cb3992c07ccc2d39a0 Mon Sep 17 00:00:00 2001 From: Dawei Huang Date: Mon, 1 Jun 2026 15:48:44 -0500 Subject: [PATCH 14/14] doc/oras-pull-design: add mermaid sequence for end-to-end Pull flow MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Documents how HandlePull drives oras-go through Resolve → Fetch → file.Store, where progress comes from (countingReader + 1s ticker), and why the staging dir is created next to the destination (same-fs rename). Captures hostfs.Translate as the container→host path seam. Signed-off-by: Dawei Huang --- doc/oras-pull-design.md | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/doc/oras-pull-design.md b/doc/oras-pull-design.md index 58a83a402..85a6ce7ea 100644 --- a/doc/oras-pull-design.md +++ b/doc/oras-pull-design.md @@ -231,6 +231,41 @@ message DeleteResponse {} ## 4. Server behavior +### 4.0 End-to-end Pull flow + +The PoC delegates all registry I/O to [`oras-go/v2`][oras-go] and only owns the +gRPC streaming, path handling, and progress reporting. + +```mermaid +sequenceDiagram + autonumber + participant C as Client + participant S as gNMI server + participant R as Registry (ACR) + participant FS as Host filesystem + + C->>S: Pull(ref, local_path, auth) + S->>R: resolve manifest, pick layer + S-->>C: PullStarted (total bytes) + loop while streaming + R-->>S: layer bytes + S->>FS: write to staging area + S-->>C: PullProgress + end + S->>FS: atomic move into local_path + S-->>C: PullResult (digests, bytes, elapsed) +``` + +- The server never speaks the OCI HTTP protocol directly; oras-go handles + resolve, auth, retries, and chunked blob fetches. +- Bytes are streamed through the server into a staging file beside the + destination, then renamed into place so partial writes are never visible + at `local_path`. +- Progress events tee off the in-flight transfer; the client sees a single + `PullStarted`, periodic `PullProgress`, and one terminal `PullResult`. + +[oras-go]: https://github.com/oras-project/oras-go + ### 4.1 Staging layout ```