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60f67a1f37
The kernel RPC cannot process non-application data records when using TLS. It must to an upcall to a userspace daemon that will call SSL_read() to process them. This patch adds a new flag called MSG_TLSAPPDATA that the kernel RPC can use to tell sorecieve() to return ENXIO instead of a non-application data record, when that is what is at the top of the receive queue. I put the code in #ifdef KERN_TLS/#endif, although it will build without that, so that it is recognized as only useful when KERN_TLS is enabled. The alternative to doing this is to have the kernel RPC re-queue the non-application data message after receiving it, but that seems more complicated and might introduce message ordering issues when there are multiple non-application data records one after another. I do not know what, if any, changes will be required to support TLS1.3. Reviewed by: glebius Differential Revision: https://reviews.freebsd.org/D25923
85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)socket.h 8.4 (Berkeley) 2/21/94
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* $FreeBSD: head/sys/sys/socket.h 334719 2018-06-06 15:45:57Z sbruno $
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*/
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#if !defined(_SYS_SOCKET_H_) || !defined(_KERNEL)
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#error "must be included via <sys/socket.h> in kernel space"
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#endif
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/*
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* Flags for accept1(), kern_accept4() and solisten_dequeue, in addition
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* to SOCK_CLOEXEC and SOCK_NONBLOCK.
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*/
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#define ACCEPT4_INHERIT 0x1
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#define ACCEPT4_COMPAT 0x2
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#define MSG_SOCALLBCK 0x00010000 /* for use by socket callbacks - soreceive (TCP) */
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#define MSG_MORETOCOME 0x00100000 /* additional data pending */
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#define MSG_TLSAPPDATA 0x00200000 /* only soreceive() app. data (TLS) */
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#define CMSG_ALIGN(n) _ALIGN(n)
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#define SF_READAHEAD(flags) ((flags) >> 16)
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struct socket;
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struct tcpcb *so_sototcpcb(struct socket *so);
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struct inpcb *so_sotoinpcb(struct socket *so);
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struct sockbuf *so_sockbuf_snd(struct socket *);
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struct sockbuf *so_sockbuf_rcv(struct socket *);
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int so_state_get(const struct socket *);
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void so_state_set(struct socket *, int);
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int so_options_get(const struct socket *);
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void so_options_set(struct socket *, int);
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int so_error_get(const struct socket *);
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void so_error_set(struct socket *, int);
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int so_linger_get(const struct socket *);
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void so_linger_set(struct socket *, int);
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struct protosw *so_protosw_get(const struct socket *);
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void so_protosw_set(struct socket *, struct protosw *);
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void so_sorwakeup_locked(struct socket *so);
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void so_sowwakeup_locked(struct socket *so);
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void so_sorwakeup(struct socket *so);
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void so_sowwakeup(struct socket *so);
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void so_lock(struct socket *so);
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void so_unlock(struct socket *so);
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