sdfs-proxy

SDFS Proxy is a proxy server that intercepts sdfs client api calls and proxies them to the backend SDFS volume. It provides Client Side Dedupe and access to most apis available on the server.

Example Usage

Connecting to a local volume listening on localhost

sdfs-proxy -listen-port localhost:16442

Connecting to a remote volume

sdfs-proxy -listen-port localhost:16442 -address sdfss://remoteserver:6442 -trust-all

Enabling Client Side Dedupe

sdfs-proxy -listen-port localhost:16442 -dedupe

Command Line Options

Option	Description	Default value
-address	The address for the Remote Volume	sdfss://localhost:6442
-debug	Debug to stdout	disabled
-dedupe	Enable Client Side Dedupe	disabled
-listen-port	The Port to listen on for proxy requests	localhost:16442
-local-auth	Sets the local volume to authenticate to the given password	admin (disabled by default)
-mtls	Use Mutual TLS	disabled
-mtls-cert	The path the client cert used for mutual TLS.	$HOME/.sdfs/keys/client.crt
-mtls-key	The path the private used for mutual TLS.	$HOME/.sdfs/keys/client.key
-p	The Password to authenticate to the remote Volume	Password
-root-ca	The path the CA cert used to sign the MTLS Cert.	$HOME/.sdfs/keys/ca.crt
-trust-all	Trust Self Signed TLS Certs	disabled
-trust-cert	Trust the certificate for url specified.	$HOME/.sdfs/keys
-u	The Username to authenticate to the remote Volume	Admin
-version	Get the version number

Building

git clone https://github.com/opendedup/sdfs-proxy.git
cd sdfs-proxy
make clean
make
cd build
./sdfs-proxy -h

Unsupported Operations

1. Client to proxy TLS encryption
2. Passthru authentication to the Target volume. the client only authenticates to the proxy itself. The proxy authenticates independenly to the remote SDFS volume.

Supported APIs

FileIOServiceClient

• GetXAttrSize
• Fsync
• SetXAttr
• RemoveXAttr
• GetXAttr
• Utime
• Truncate
• SymLink (linux only)
• GetAttr
• ReadLink
• Flush
• Chown
• MkDir
• RmDir
• Unlink
• Write - With deduplication writes will be cached locally and flushed to the target volume as buffer fills and on close.
• Read
• Release
• Mknod
• Open
• GetFileInfo
• CreateCopy
• FileExists
• MkDirAll
• Stat
• Rename
• CopyExtent
• SetUserMetaData
• GetCloudFile
• GetCloudMetaFile
• StatFS

VolumeServiceClient

• AuthenticateUser - The user is authenticated to the proxy by using the -local-auth switch
• SetMaxAge
• GetVolumeInfo
• ShutdownVolume
• CleanStore
• DeleteCloudVolume
• DSEInfo
• SystemInfo
• SetVolumeCapacity
• GetConnectedVolumes
• GetGCSchedule
• SetCacheSize
• SetReadSpeed
• SetWriteSpeed
• SyncFromCloudVolume
• SyncCloudVolume

SDFSEventServiceClient

• GetEvent
• ListEvents
• SubscribeEvent