Module state 

Server-side state: configuration, sessions, tree connects, open handles and directory-search contexts.

Per the architecture, shared metadata is refcounted (Arc) so an IoContext can carry it for the lifetime of one request without borrowing the connection lock.

Modules

amask 🔒

Windows share-mode access bits ([MS-SMB2] §2.2.13).

share 🔒

Share flags ([MS-SMB2] §2.2.13).

Structs

AppInstanceTable

Server-wide registry of application-instance opens: a later CREATE with the same AppInstanceId from a different client force-closes the prior open, enabling client failover ([MS-SMB2] §3.3.5.9.13).

AppOpen 🔒

A recorded application-instance open ([MS-SMB2] §3.3.5.9.13).

BreakCrypto

Crypto material needed to sign/seal an unsolicited oplock break for a holder, snapshotted at grant time (mirrors the async completion path).

ConnState

Per-connection state machine.

DurableEntry

A durable file handle preserved across a connection drop so the client can reclaim it ([MS-SMB2] §3.3.1.10). Stored as Send metadata; on reconnect the file is re-opened (single-node model), so no live fd is held here.

HeldLock 🔒

LeaseHolder

A granted caching lease and the means to break it ([MS-SMB2] §2.2.23.2).

LeaseTable

Server-wide lease table: the set of caching-lease holders per file path.

LockManager

Server-wide byte-range lock manager ([MS-SMB2] §2.2.26 / [MS-FSA] §2.1.4.10). Locks are keyed by the file’s on-disk path so opens from different connections contend correctly.

OpenMode 🔒

One recorded open on a file: its granted access and the sharing it permits.

OplockHolder

A granted exclusive oplock and the means to break it.

OplockTable

Server-wide oplock table: at most one exclusive oplock per file path.

SearchCtx

Directory search continuation state keyed by search SID.

ServerShared

Global (per-process) server configuration and user database.

Session

An authenticated SMB session (one UID).

SessionEntry

Established-session crypto material, shared server-wide so a new connection can bind another channel to the session ([MS-SMB2] §3.3.5.5.3 multichannel).

SessionTable

Server-wide table of established sessions, keyed by session id.

Share

A published share backed by a VFS instance.

ShareModeTable

Server-wide table of open share modes, keyed by on-disk path, used to detect sharing violations ([MS-FSA] §2.1.5.1) across all connections.

Enums

AppInstanceMatch

Outcome of matching a CREATE’s AppInstanceId against existing opens.

LeaseAckError

Why a lease-break acknowledgment was rejected ([MS-SMB2] §3.3.5.22.1).

Constants

DHANDLE_FLAG_PERSISTENT 🔒

Durable-handle flag marking a persistent handle ([MS-SMB2] §2.2.14.2.12).

STYPE_IPC_SPECIAL 🔒

Share type for a hidden IPC$ pipe share: STYPE_IPC | STYPE_SPECIAL ([MS-SRVS] §2.2.2.4).

Statics

FID 🔒

SID 🔒

TID 🔒

UID 🔒

Functions

compatible 🔒

A new (access, share) open is compatible with an existing open when each side permits the other’s access through its share flags ([MS-FSA] §2.1.5.1).

next_fid

Allocate a fresh FID.

next_id 🔒

next_sid

Allocate a fresh search SID.

next_tid

Allocate a fresh TID.

next_uid

Allocate a fresh UID.

now_ms

Milliseconds since the Unix epoch, used for durable-handle deadlines.

overlaps 🔒

Whether [off, off+len) overlaps the held lock’s range.

wants_delete 🔒

wants_read 🔒

wants_write 🔒

Type Aliases

LeaseBreak

One lease-break notification: (key, old_state, new_state, epoch, outbound, crypto) for a holder that must be broken ([MS-SMB2] §3.3.4.7).

LockOwner

Identifies the open that owns a byte-range lock: (session_id, file_id).

SharedServer

Convenience alias: refcounted shared server config.