AcoSail/kernel_optimize_test
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Tree connect for SMB3.1.1 must be signed for non-encrypted shares

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SMB3.1.1 tree connect was only being signed when signing was mandatory
but needs to always be signed (for non-guest users).

See MS-SMB2 section 3.2.4.1.1

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
CC: Stable <stable@vger.kernel.org>
This commit is contained in:
Steve French 2018-03-13 02:29:36 -05:00 committed by Steve French
parent 262916bc69
commit 6188f28bf6
1 changed files with 5 additions and 0 deletions
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5
fs/cifs/smb2pdu.c
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@ -1305,6 +1305,11 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
iov[1].iov_base = unc_path;
iov[1].iov_len = unc_path_len;
/* 3.11 tcon req must be signed if not encrypted. See MS-SMB2 3.2.4.1.1 */
if ((ses->server->dialect == SMB311_PROT_ID) &&
!encryption_required(tcon))
req->sync_hdr.Flags |= SMB2_FLAGS_SIGNED;
rc = smb2_send_recv(xid, ses, iov, 2, &resp_buftype, flags, &rsp_iov);
cifs_small_buf_release(req);
rsp = (struct smb2_tree_connect_rsp *)rsp_iov.iov_base;