smb 0.6.0

A Pure Rust SMB Client implementation
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use std::ops::Deref;

use maybe_async::*;

use crate::{
    msg_handler::MessageHandler,
    packets::{
        dfsc::{ReferralLevel, ReqGetDfsReferral, RespGetDfsReferral},
        smb2::{Content, FileId, FsctlCodes, IoctlReqData, IoctlRequest, IoctlRequestFlags},
    },
};

use super::Tree;

/// A wrapper around the [`Tree`] struct that provides a DFS root functions.
///
/// The struct implements `Deref` to allow access to the underlying [`Tree`] methods.
pub struct DfsRootTree {
    tree: Tree,
}

impl DfsRootTree {
    /// Creates a new [`DfsRootTree`] instance,
    /// wrapping the provided [`Tree`].
    pub(crate) fn new(tree: Tree) -> Self {
        Self { tree }
    }

    /// Performs a DFS referral request to the server.
    /// This is used to get the referral information for a given path.
    ///
    /// See [MS-DFSC][https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-dfsc/04657125-a7d5-4c62-9bec-85af601fa14c] for more information.
    #[maybe_async]
    pub async fn dfs_get_referrals(&self, path: &str) -> crate::Result<RespGetDfsReferral> {
        let res = self
            .handler
            .send_recv(Content::IoctlRequest(IoctlRequest {
                ctl_code: FsctlCodes::DfsGetReferrals as u32,
                file_id: FileId::FULL,
                max_input_response: 1024,
                max_output_response: 1024,
                flags: IoctlRequestFlags::new().with_is_fsctl(true),
                buffer: IoctlReqData::FsctlDfsGetReferrals(ReqGetDfsReferral {
                    max_referral_level: ReferralLevel::V4,
                    request_file_name: path.into(),
                }),
            }))
            .await?;
        let res = res
            .message
            .content
            .to_ioctlresponse()?
            .parse_fsctl::<RespGetDfsReferral>()?;
        Ok(res)
    }
}

impl Deref for DfsRootTree {
    type Target = Tree;

    fn deref(&self) -> &Self::Target {
        &self.tree
    }
}