0ddfd867ed
Do not call crypto_newsession() while holding xforms_lock mutex. Release mutex before invoking crypto_newsession(), and use ipsec_kmod_enter()/ipsec_kmod_exit() functions to protect from doing access to unloaded kernel module memory. Move xform-releated functions into subr_ipsec.c to be able use ipsec_kmod_* functions. Also unconditionally build ipsec_kmod_* functions, since now they are always used by IPSec code. Add xf_cntr field to struct xformsw, it is used by ipsec_kmod_* functions. Also constify xf_name field, since it is not expected to be modified. Approved by: re (kib) Differential Revision: https://reviews.freebsd.org/D17302
105 lines
3.8 KiB
C
105 lines
3.8 KiB
C
/* $FreeBSD$ */
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/* $KAME: key.h,v 1.21 2001/07/27 03:51:30 itojun Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* 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 project 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 PROJECT 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 PROJECT 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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#ifndef _NETIPSEC_KEY_H_
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#define _NETIPSEC_KEY_H_
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#ifdef _KERNEL
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struct secpolicy;
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struct secpolicyindex;
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struct secasvar;
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struct sockaddr;
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struct socket;
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struct sadb_msg;
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struct sadb_x_policy;
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struct secasindex;
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union sockaddr_union;
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struct xformsw;
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struct secpolicy *key_newsp(void);
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struct secpolicy *key_allocsp(struct secpolicyindex *, u_int);
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struct secpolicy *key_msg2sp(struct sadb_x_policy *, size_t, int *);
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int key_sp2msg(struct secpolicy *, void *, size_t *);
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void key_addref(struct secpolicy *);
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void key_freesp(struct secpolicy **);
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int key_spdacquire(struct secpolicy *);
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int key_havesp(u_int);
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void key_bumpspgen(void);
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uint32_t key_getspgen(void);
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uint32_t key_newreqid(void);
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struct secasvar *key_allocsa(union sockaddr_union *, uint8_t, uint32_t);
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struct secasvar *key_allocsa_tunnel(union sockaddr_union *,
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union sockaddr_union *, uint8_t);
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struct secasvar *key_allocsa_policy(struct secpolicy *,
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const struct secasindex *, int *);
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struct secasvar *key_allocsa_tcpmd5(struct secasindex *);
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void key_freesav(struct secasvar **);
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int key_sockaddrcmp(const struct sockaddr *, const struct sockaddr *, int);
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int key_sockaddrcmp_withmask(const struct sockaddr *, const struct sockaddr *,
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size_t);
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int key_register_ifnet(struct secpolicy **, u_int);
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void key_unregister_ifnet(struct secpolicy **, u_int);
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void key_delete_xform(const struct xformsw *);
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extern u_long key_random(void);
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extern void key_randomfill(void *, size_t);
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extern void key_freereg(struct socket *);
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extern int key_parse(struct mbuf *, struct socket *);
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extern void key_init(void);
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#ifdef VIMAGE
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extern void key_destroy(void);
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#endif
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extern void key_sa_recordxfer(struct secasvar *, struct mbuf *);
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uint16_t key_portfromsaddr(struct sockaddr *);
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void key_porttosaddr(struct sockaddr *, uint16_t port);
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#ifdef MALLOC_DECLARE
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MALLOC_DECLARE(M_IPSEC_SA);
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MALLOC_DECLARE(M_IPSEC_SAH);
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MALLOC_DECLARE(M_IPSEC_SP);
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MALLOC_DECLARE(M_IPSEC_SR);
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MALLOC_DECLARE(M_IPSEC_MISC);
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MALLOC_DECLARE(M_IPSEC_SAQ);
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MALLOC_DECLARE(M_IPSEC_SAR);
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MALLOC_DECLARE(M_IPSEC_INPCB);
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#endif /* MALLOC_DECLARE */
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#endif /* defined(_KERNEL) */
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#endif /* _NETIPSEC_KEY_H_ */
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