From 395a2076b4064f97d3fce03af15210ff2a7bb7f9 Mon Sep 17 00:00:00 2001 From: Thomas Werschlein Date: Thu, 30 Aug 2018 18:29:20 +0200 Subject: cifs: connect to servername instead of IP for IPC$ share MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch is required allows access to a Microsoft fileserver failover cluster behind a 1:1 NAT firewall. The change also provides stronger context for authentication and share connection (see MS-SMB2 3.3.5.7 and MS-SRVS 3.1.6.8) as noted by Tom Talpey, and addresses comments about the buffer size for the UNC made by Aurélien Aptel. Signed-off-by: Thomas Werschlein Signed-off-by: Steve French CC: Tom Talpey Reviewed-by: Aurelien Aptel CC: Stable --- fs/cifs/connect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/cifs') diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index c832a8a1970a..7aa08dba4719 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2547,7 +2547,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb_vol *volume_info) if (tcon == NULL) return -ENOMEM; - snprintf(unc, sizeof(unc), "\\\\%s\\IPC$", ses->serverName); + snprintf(unc, sizeof(unc), "\\\\%s\\IPC$", ses->server->hostname); /* cannot fail */ nls_codepage = load_nls_default(); -- cgit v1.2.3