Timothy Messier
f983a05a3e
This adds a function for decoding all of the SSH Chunk types and registers the function with the chunk types so that the bsr.ChunkDecode can be used to decode SSH Chunks.
81 lines
2.5 KiB
Go
81 lines
2.5 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: MPL-2.0
|
|
|
|
package ssh
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/hashicorp/boundary/internal/bsr"
|
|
pssh "github.com/hashicorp/boundary/internal/bsr/gen/ssh/v1"
|
|
"github.com/hashicorp/boundary/internal/bsr/internal/is"
|
|
gssh "golang.org/x/crypto/ssh"
|
|
"google.golang.org/protobuf/proto"
|
|
)
|
|
|
|
const CancelTCPIPForwardRequestType = "cancel-tcpip-forward"
|
|
|
|
// CancelTCPIPForwardRequest is a chunk to contain data for an SSH Cancel TCIPIP Forward request
|
|
type CancelTCPIPForwardRequest struct {
|
|
*bsr.BaseChunk
|
|
*pssh.CancelTCPIPForwardRequest
|
|
}
|
|
|
|
// MarshalData serializes a CancelTCPIPForwardRequest chunk
|
|
func (r *CancelTCPIPForwardRequest) MarshalData(ctx context.Context) ([]byte, error) {
|
|
const op = "ssh.(CancelTCPIPForwardRequest).MarshalData"
|
|
dataBytes, err := proto.Marshal(r.CancelTCPIPForwardRequest)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("%s: failed to marshal data: %w", op, err)
|
|
}
|
|
|
|
d := make([]byte, 0, len(dataBytes))
|
|
d = append(d, dataBytes...)
|
|
|
|
return d, nil
|
|
}
|
|
|
|
// NewCancelTCPIPForwardRequest creates a CancelTCPIPForwardRequest chunk
|
|
func NewCancelTCPIPForwardRequest(ctx context.Context, d bsr.Direction, t *bsr.Timestamp, r *gssh.Request) (*CancelTCPIPForwardRequest, error) {
|
|
const op = "ssh.NewCancelTCPIPForwardRequest"
|
|
|
|
if is.Nil(r) {
|
|
return nil, fmt.Errorf("%s: request cannot be nil: %w", op, bsr.ErrInvalidParameter)
|
|
}
|
|
if r.Type != CancelTCPIPForwardRequestType {
|
|
return nil, fmt.Errorf("%s: request type must be %q: %w", op, CancelTCPIPForwardRequestType, bsr.ErrInvalidParameter)
|
|
}
|
|
if !bsr.ValidDirection(d) {
|
|
return nil, fmt.Errorf("%s: invalid direction: %w", op, bsr.ErrInvalidParameter)
|
|
}
|
|
if is.Nil(t) {
|
|
return nil, fmt.Errorf("%s: timestamp cannot be nil: %w", op, bsr.ErrInvalidParameter)
|
|
}
|
|
|
|
baseChunk, err := bsr.NewBaseChunk(ctx, Protocol, d, t, CancelTCPIPForwardReqChunkType)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("%s: unable to create base chunk: %w", op, err)
|
|
}
|
|
|
|
var sigval cancelTCPIPForwardSigval
|
|
if err := gssh.Unmarshal(r.Payload, &sigval); err != nil {
|
|
return nil, fmt.Errorf("%s: unable to unmarshal payload: %w", op, err)
|
|
}
|
|
reqData := &CancelTCPIPForwardRequest{
|
|
BaseChunk: baseChunk,
|
|
CancelTCPIPForwardRequest: &pssh.CancelTCPIPForwardRequest{
|
|
RequestType: r.Type,
|
|
WantReply: r.WantReply,
|
|
AddressToBind: sigval.AddressToBind,
|
|
PortToBind: sigval.PortToBind,
|
|
},
|
|
}
|
|
return reqData, nil
|
|
}
|
|
|
|
type cancelTCPIPForwardSigval struct {
|
|
AddressToBind string
|
|
PortToBind uint32
|
|
}
|