From: Ralph Boehme <slow@samba.org>
Date: Fri, 28 May 2021 07:25:22 +0000 (+0200)
Subject: smbd: add create_conn_struct_cwd()
X-Git-Tag: tevent-0.11.0~343
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9a2d6bcfd5797dd4db764921548c8dca6dd0eb21;p=thirdparty%2Fsamba.git

smbd: add create_conn_struct_cwd()

Compared to create_conn_struct_tos_cwd() this takes a TALLOC_CTX and
tevent_context as additional arguments and the resulting connection_struct is
stable across the lifetime of mem_ctx and ev.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14740

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/source3/smbd/msdfs.c b/source3/smbd/msdfs.c
index 864cd102403..4c7aa89e859 100644
--- a/source3/smbd/msdfs.c
+++ b/source3/smbd/msdfs.c
@@ -495,6 +495,44 @@ NTSTATUS create_conn_struct_tos_cwd(struct messaging_context *msg,
 	return NT_STATUS_OK;
 }
 
+/********************************************************
+ Fake up a connection struct for the VFS layer.
+ This takes an TALLOC_CTX and tevent_context from the
+ caller and the resulting connection_struct is stable
+ across the lifetime of mem_ctx and ev.
+
+ Note: this performs a vfs connect and changes cwd.
+
+ See also the comment for create_conn_struct_tos() above!
+*********************************************************/
+
+NTSTATUS create_conn_struct_cwd(TALLOC_CTX *mem_ctx,
+				struct tevent_context *ev,
+				struct messaging_context *msg,
+				const struct auth_session_info *session_info,
+				int snum,
+				const char *path,
+				struct connection_struct **c)
+{
+	NTSTATUS status;
+
+	become_root();
+	status = create_conn_struct_as_root(mem_ctx,
+					    ev,
+					    msg,
+					    c,
+					    snum,
+					    path,
+					    session_info);
+	unbecome_root();
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(c);
+		return status;
+	}
+
+	return NT_STATUS_OK;
+}
+
 static void shuffle_strlist(char **list, int count)
 {
 	int i;
diff --git a/source3/smbd/proto.h b/source3/smbd/proto.h
index c0df35bcc48..e10ffa5110e 100644
--- a/source3/smbd/proto.h
+++ b/source3/smbd/proto.h
@@ -578,6 +578,14 @@ NTSTATUS dfs_redirect(TALLOC_CTX *ctx,
 			char **pp_name_out);
 struct connection_struct;
 struct smb_filename;
+
+NTSTATUS create_conn_struct_cwd(TALLOC_CTX *mem_ctx,
+				struct tevent_context *ev,
+				struct messaging_context *msg,
+				const struct auth_session_info *session_info,
+				int snum,
+				const char *path,
+				struct connection_struct **c);
 struct conn_struct_tos {
 	struct connection_struct *conn;
 	struct smb_filename *oldcwd_fname;