cifs: show sec= option in /proc/mounts

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 989442d..e9def99 100644 (file)
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -352,6 +352,37 @@ cifs_show_address(struct seq_file *s, struct TCP_Server_Info *server)
        }
 }
 
+static void
+cifs_show_security(struct seq_file *s, struct TCP_Server_Info *server)
+{
+       seq_printf(s, ",sec=");
+
+       switch (server->secType) {
+       case LANMAN:
+               seq_printf(s, "lanman");
+               break;
+       case NTLMv2:
+               seq_printf(s, "ntlmv2");
+               break;
+       case NTLM:
+               seq_printf(s, "ntlm");
+               break;
+       case Kerberos:
+               seq_printf(s, "krb5");
+               break;
+       case RawNTLMSSP:
+               seq_printf(s, "ntlmssp");
+               break;
+       default:
+               /* shouldn't ever happen */
+               seq_printf(s, "unknown");
+               break;
+       }
+
+       if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+               seq_printf(s, "i");
+}
+
 /*
  * cifs_show_options() is for displaying mount options in /proc/mounts.
  * Not all settable options are displayed but most of the important
@@ -365,6 +396,8 @@ cifs_show_options(struct seq_file *s, struct vfsmount *m)
        struct sockaddr *srcaddr;
        srcaddr = (struct sockaddr *)&tcon->ses->server->srcaddr;
 
+       cifs_show_security(s, tcon->ses->server);
+
        seq_printf(s, ",unc=%s", tcon->treeName);
 
        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)