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- /*-
- * Copyright (c) 2016 Andrey V. Elsukov <ae@FreeBSD.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #include "opt_inet.h"
- #include "opt_inet6.h"
- #include "opt_ipsec.h"
- #include <sys/param.h>
- #include <sys/systm.h>
- #include <sys/kernel.h>
- #include <sys/lock.h>
- #include <sys/malloc.h>
- #include <sys/mbuf.h>
- #include <sys/module.h>
- #include <sys/priv.h>
- #include <sys/rmlock.h>
- #include <sys/socket.h>
- #include <sys/sockopt.h>
- #include <sys/syslog.h>
- #include <sys/proc.h>
- #include <netinet/in.h>
- #include <netinet/in_pcb.h>
- #include <netipsec/ipsec.h>
- #include <netipsec/ipsec6.h>
- #include <netipsec/key.h>
- #include <netipsec/key_debug.h>
- #include <netipsec/ipsec_support.h>
- #ifdef INET
- static const struct ipsec_methods ipv4_methods = {
- .input = ipsec4_input,
- .forward = ipsec4_forward,
- .output = ipsec4_output,
- .pcbctl = ipsec4_pcbctl,
- .capability = ipsec4_capability,
- .check_policy = ipsec4_in_reject,
- .ctlinput = ipsec4_ctlinput,
- .hdrsize = ipsec_hdrsiz_inpcb,
- .udp_input = udp_ipsec_input,
- .udp_pcbctl = udp_ipsec_pcbctl,
- };
- #ifndef KLD_MODULE
- static const struct ipsec_support ipv4_ipsec = {
- .enabled = IPSEC_MODULE_ENABLED,
- .methods = &ipv4_methods
- };
- const struct ipsec_support * const ipv4_ipsec_support = &ipv4_ipsec;
- #endif /* !KLD_MODULE */
- #endif /* INET */
- #ifdef INET6
- static const struct ipsec_methods ipv6_methods = {
- .input = ipsec6_input,
- .forward = ipsec6_forward,
- .output = ipsec6_output,
- .pcbctl = ipsec6_pcbctl,
- .capability = ipsec6_capability,
- .check_policy = ipsec6_in_reject,
- .ctlinput = ipsec6_ctlinput,
- .hdrsize = ipsec_hdrsiz_inpcb,
- .udp_input = udp_ipsec_input,
- .udp_pcbctl = udp_ipsec_pcbctl,
- };
- #ifndef KLD_MODULE
- static const struct ipsec_support ipv6_ipsec = {
- .enabled = IPSEC_MODULE_ENABLED,
- .methods = &ipv6_methods
- };
- const struct ipsec_support * const ipv6_ipsec_support = &ipv6_ipsec;
- #endif /* !KLD_MODULE */
- #endif /* INET6 */
- /*
- * Always register ipsec module.
- * Even when IPsec is build in the kernel, we need to have
- * module registered. This will prevent to load ipsec.ko.
- */
- static int
- ipsec_modevent(module_t mod, int type, void *data)
- {
- switch (type) {
- case MOD_LOAD:
- /* All xforms are registered via SYSINIT */
- if (!ipsec_initialized())
- return (ENOMEM);
- #ifdef KLD_MODULE
- #ifdef INET
- ipsec_support_enable(ipv4_ipsec_support, &ipv4_methods);
- #endif
- #ifdef INET6
- ipsec_support_enable(ipv6_ipsec_support, &ipv6_methods);
- #endif
- #endif /* KLD_MODULE */
- break;
- case MOD_UNLOAD:
- /* All xforms are unregistered via SYSUNINIT */
- #ifdef KLD_MODULE
- #ifdef INET
- ipsec_support_disable(ipv4_ipsec_support);
- #endif
- #ifdef INET6
- ipsec_support_disable(ipv6_ipsec_support);
- #endif
- #endif /* KLD_MODULE */
- break;
- default:
- return (EOPNOTSUPP);
- }
- return (0);
- }
- static moduledata_t ipsec_mod = {
- "ipsec",
- ipsec_modevent,
- 0
- };
- DECLARE_MODULE(ipsec, ipsec_mod, SI_SUB_PROTO_DOMAIN, SI_ORDER_ANY);
- MODULE_VERSION(ipsec, 1);
- #ifdef KLD_MODULE
- MODULE_DEPEND(ipsec, ipsec_support, 1, 1, 1);
- #endif
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