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bc29160df3
Vnet modules and protocol domains may now register destructor functions to clean up and release per-module state. The destructor mechanisms can be triggered by invoking "vimage -d", or a future equivalent command which will be provided via the new jail framework. While this patch introduces numerous placeholder destructor functions, many of those are currently incomplete, thus leaking memory or (even worse) failing to stop all running timers. Many of such issues are already known and will be incrementaly fixed over the next weeks in smaller incremental commits. Apart from introducing new fields in structs ifnet, domain, protosw and vnet_net, which requires the kernel and modules to be rebuilt, this change should have no impact on nooptions VIMAGE builds, since vnet destructors can only be called in VIMAGE kernels. Moreover, destructor functions should be in general compiled in only in options VIMAGE builds, except for kernel modules which can be safely kldunloaded at run time. Bump __FreeBSD_version to 800097. Reviewed by: bz, julian Approved by: rwatson, kib (re), julian (mentor)
149 lines
5.8 KiB
C
149 lines
5.8 KiB
C
/*-
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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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* $KAME: ip6protosw.h,v 1.25 2001/09/26 06:13:03 keiichi Exp $
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*/
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/*-
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* Copyright (c) 1982, 1986, 1993
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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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* 4. 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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* @(#)protosw.h 8.1 (Berkeley) 6/2/93
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* BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp
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* $FreeBSD$
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*/
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#ifndef _NETINET6_IP6PROTOSW_H_
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#define _NETINET6_IP6PROTOSW_H_
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/*
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* Protocol switch table for IPv6.
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* All other definitions should refer to sys/protosw.h
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*/
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struct mbuf;
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struct sockaddr;
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struct socket;
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struct domain;
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struct thread;
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struct ip6_hdr;
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struct icmp6_hdr;
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struct in6_addr;
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struct pr_usrreqs;
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/*
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* argument type for the last arg of pr_ctlinput().
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* should be consulted only with AF_INET6 family.
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*
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* IPv6 ICMP IPv6 [exthdrs] finalhdr payload
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* ^ ^ ^ ^
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* | | ip6c_ip6 ip6c_off
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* | ip6c_icmp6
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* ip6c_m
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*
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* ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original
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* (internal) packet carries a routing header, it may point the final
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* dstination address in the routing header.
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*
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* ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6
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* (beware of flowlabel, if you try to compare it against others)
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* ip6c_dst: ip6c_finaldst + scope info
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*/
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struct ip6ctlparam {
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struct mbuf *ip6c_m; /* start of mbuf chain */
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struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */
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struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */
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int ip6c_off; /* offset of the target proto header */
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struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */
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struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */
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struct in6_addr *ip6c_finaldst; /* final destination address */
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void *ip6c_cmdarg; /* control command dependent data */
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u_int8_t ip6c_nxt; /* final next header field */
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};
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struct ip6protosw {
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short pr_type; /* socket type used for */
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struct domain *pr_domain; /* domain protocol a member of */
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short pr_protocol; /* protocol number */
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short pr_flags; /* see below */
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/* protocol-protocol hooks */
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int (*pr_input) /* input to protocol (from below) */
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__P((struct mbuf **, int *, int));
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int (*pr_output) /* output to protocol (from above) */
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__P((struct mbuf *, ...));
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void (*pr_ctlinput) /* control input (from below) */
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__P((int, struct sockaddr *, void *));
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int (*pr_ctloutput) /* control output (from above) */
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__P((struct socket *, struct sockopt *));
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/* utility hooks */
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void (*pr_init) /* initialization hook */
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__P((void));
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void (*pr_destroy) /* cleanup hook */
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__P((void));
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void (*pr_fasttimo) /* fast timeout (200ms) */
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__P((void));
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void (*pr_slowtimo) /* slow timeout (500ms) */
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__P((void));
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void (*pr_drain) /* flush any excess space possible */
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__P((void));
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struct pr_usrreqs *pr_usrreqs; /* supersedes pr_usrreq() */
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};
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#ifdef _KERNEL
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extern struct ip6protosw inet6sw[];
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#endif
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#endif /* !_NETINET6_IP6PROTOSW_H_ */
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