smb2-client 0.1.0

Minimal async SMB2 client in pure Rust: negotiate, NTLMv2 (SPNEGO) session setup, message signing (HMAC-SHA256 / AES-CMAC), tree connect, named-pipe and file I/O — no FFI.
Documentation 
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//! A minimal SMB2 client — the impacket `smb3`/`smbconnection` equivalent, scoped to what
//! named-pipe DCE/RPC needs: negotiate (dialect 2.1.0), NTLM session setup, tree-connect to
//! IPC$, create a pipe, and FSCTL_PIPE_TRANSCEIVE to carry RPC PDUs.
//!
//! Raw NTLMSSP is placed directly in the session-setup security buffer (Windows accepts it
//! without a SPNEGO wrapper). SMB 2.x message signing (HMAC-SHA256, truncated to 16 bytes)
//! is applied once a session key is established, since DCs require signing on IPC$.

pub mod client;
pub mod header;
pub mod msg;
pub mod server;
pub mod spnego;
pub mod transport;

pub use client::{Cred, SmbClient};

#[derive(Debug, thiserror::Error)]
pub enum SmbError {
    #[error("truncated SMB2 message")]
    Truncated,
    #[error("bad protocol id")]
    BadProtocol,
    #[error("SMB2 status {0:#010x} for command {1:#06x}")]
    Status(u32, u16),
    #[error("unexpected security token")]
    BadToken,
    #[error("ntlm: {0}")]
    Ntlm(String),
    #[error(transparent)]
    Io(#[from] std::io::Error),
}

pub type Result<T> = std::result::Result<T, SmbError>;

/// SMB2 status codes we branch on.
pub mod status {
    pub const SUCCESS: u32 = 0x0000_0000;
    pub const PENDING: u32 = 0x0000_0103; // interim async response; the real one follows
    pub const MORE_PROCESSING_REQUIRED: u32 = 0xC000_0016;
    pub const END_OF_FILE: u32 = 0xC000_0011;
    pub const OBJECT_NAME_NOT_FOUND: u32 = 0xC000_0034;
    pub const SHARING_VIOLATION: u32 = 0xC000_0043;
}