Add nss getgrnam to the himmelblau daemon

Signed-off-by: David Mulder <dmulder@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>

diff --git a/himmelblaud/src/himmelblaud.rs b/himmelblaud/src/himmelblaud.rs
index a4a0af3ca26805c5006b7c14840c7085186150e6..9f6167bb7d047564cc3a094ae6473841f0d12e3e 100644 (file)
--- a/himmelblaud/src/himmelblaud.rs
+++ b/himmelblaud/src/himmelblaud.rs
@@ -216,6 +216,9 @@ pub(crate) async fn handle_client(
             }
             Request::NssAccountByUid(uid) => resolver.getpwuid(uid).await?,
             Request::NssGroups => resolver.getgrent().await?,
+            Request::NssGroupByName(grp_id) => {
+                resolver.getgrnam(&grp_id).await?
+            }
             _ => todo!(),
         };
         reqs.send(resp).await?;
@@ -228,6 +231,7 @@ pub(crate) async fn handle_client(
 }
 
 mod himmelblaud_getgrent;
+mod himmelblaud_getgrnam;
 mod himmelblaud_getpwent;
 mod himmelblaud_getpwnam;
 mod himmelblaud_getpwuid;

diff --git a/himmelblaud/src/himmelblaud/himmelblaud_getgrnam.rs b/himmelblaud/src/himmelblaud/himmelblaud_getgrnam.rs
new file mode 100644 (file)
index 0000000..cafc6a4
--- /dev/null
+++ b/himmelblaud/src/himmelblaud/himmelblaud_getgrnam.rs
@@ -0,0 +1,52 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Himmelblau daemon implementation for nss getgrnam
+
+   Copyright (C) David Mulder 2024
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+use crate::himmelblaud::Resolver;
+use dbg::DBG_ERR;
+use ntstatus_gen::*;
+use sock::{Group, Response};
+
+impl Resolver {
+    pub(crate) async fn getgrnam(
+        &mut self,
+        grp_id: &str,
+    ) -> Result<Response, Box<NTSTATUS>> {
+        let entry = match self.group_cache.fetch(grp_id) {
+            Some(entry) => entry,
+            None => return Ok(Response::NssGroup(None)),
+        };
+        let gid = self
+            .idmap
+            .gen_to_unix(&self.tenant_id, &entry.uuid.to_uppercase())
+            .map_err(|e| {
+                DBG_ERR!("{:?}", e);
+                Box::new(NT_STATUS_INVALID_TOKEN)
+            })?;
+        // Store the calculated gid -> uuid map in the cache
+        self.uid_cache.store(gid, &entry.uuid.to_uppercase())?;
+        let group = Group {
+            name: entry.uuid.clone(),
+            passwd: "x".to_string(),
+            gid,
+            members: entry.members(),
+        };
+        return Ok(Response::NssGroup(Some(group)));
+    }
+}