smb: client: default to nonativesocket under POSIX mounts

pcacjr · smfrench · commit 6b445309eec2 · 2025-08-04T19:29:10.000-05:00
SMB3.1.1 POSIX mounts require sockets to be created with NFS reparse points. Cc: linux-cifs@vger.kernel.org Cc: Ralph Boehme <slow@samba.org> Cc: David Howells <dhowells@redhat.com> Cc: <stable@vger.kernel.org> Reported-by: Matthew Richardson <m.richardson@ed.ac.uk> Closes: https://marc.info/?i=1124e7cd-6a46-40a6-9f44-b7664a66654b@ed.ac.uk Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org> Signed-off-by: Steve French <stfrench@microsoft.com>
diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
@@ -1652,6 +1652,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
 				pr_warn_once("conflicting posix mount options specified\n");
 			ctx->linux_ext = 1;
 			ctx->no_linux_ext = 0;
+			ctx->nonativesocket = 1; /* POSIX mounts use NFS style reparse points */
 		}
 		break;
 	case Opt_nocase:

Original file line number	Diff line number	Diff line change
`@@ -1652,6 +1652,7 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,`
`1652`	`1652`	`pr_warn_once("conflicting posix mount options specified\n");`
`1653`	`1653`	`ctx->linux_ext = 1;`
`1654`	`1654`	`ctx->no_linux_ext = 0;`
	`1655`	`+ ctx->nonativesocket = 1; /* POSIX mounts use NFS style reparse points */`
`1655`	`1656`	`}`
`1656`	`1657`	`break;`
`1657`	`1658`	`case Opt_nocase:`