From: Steve French Date: Sun, 28 Oct 2018 18:13:23 +0000 (-0500) Subject: smb3: on kerberos mount if server doesn't specify auth type use krb5 X-Git-Tag: v5.15~7640^2~7 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=926674de6705f0f1dbf29a62fd758d0977f535d6;p=platform%2Fkernel%2Flinux-starfive.git smb3: on kerberos mount if server doesn't specify auth type use krb5 Some servers (e.g. Azure) do not include a spnego blob in the SMB3 negotiate protocol response, so on kerberos mounts ("sec=krb5") we can fail, as we expected the server to list its supported auth types (OIDs in the spnego blob in the negprot response). Change this so that on krb5 mounts we default to trying krb5 if the server doesn't list its supported protocol mechanisms. Signed-off-by: Steve French Reviewed-by: Ronnie Sahlberg CC: Stable --- diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c index b611fc2..7f01c6e 100644 --- a/fs/cifs/cifs_spnego.c +++ b/fs/cifs/cifs_spnego.c @@ -147,8 +147,10 @@ cifs_get_spnego_key(struct cifs_ses *sesInfo) sprintf(dp, ";sec=krb5"); else if (server->sec_mskerberos) sprintf(dp, ";sec=mskrb5"); - else - goto out; + else { + cifs_dbg(VFS, "unknown or missing server auth type, use krb5\n"); + sprintf(dp, ";sec=krb5"); + } dp = description + strlen(description); sprintf(dp, ";uid=0x%x",