1cafed3941
drain routines are done by swi_net, which allows for better queue control at some future point. Packets may also be directly dispatched to a netisr instead of queued, this may be of interest at some installations, but currently defaults to off. Reviewed by: hsu, silby, jayanth, sam Sponsored by: DARPA, NAI Labs
158 lines
4.9 KiB
C
158 lines
4.9 KiB
C
/* $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $ */
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/* $FreeBSD$ */
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/*
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*
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* Copyright (c) 1996 Charles D. Cranor and Washington University.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles D. Cranor and
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* Washington University.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* natm.h: native mode atm
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*/
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/*
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* supported protocols
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*/
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#define PROTO_NATMAAL0 1
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#define PROTO_NATMAAL5 2
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/*
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* sockaddr_natm
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*/
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struct sockaddr_natm {
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u_int8_t snatm_len; /* length */
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u_int8_t snatm_family; /* AF_NATM */
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char snatm_if[IFNAMSIZ]; /* interface name */
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u_int16_t snatm_vci; /* vci */
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u_int8_t snatm_vpi; /* vpi */
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};
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#if defined(__FreeBSD__) && defined(_KERNEL)
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#define SPLSOFTNET() splnet()
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#elif defined(__NetBSD__) || defined(__OpenBSD__)
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#define SPLSOFTNET() splsoftnet()
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#endif
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#ifdef _KERNEL
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/*
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* natm protocol control block
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*/
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struct natmpcb {
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LIST_ENTRY(natmpcb) pcblist; /* list pointers */
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u_int npcb_inq; /* # of our pkts in proto q */
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struct socket *npcb_socket; /* backpointer to socket */
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struct ifnet *npcb_ifp; /* pointer to hardware */
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struct in_addr ipaddr; /* remote IP address, if APCB_IP */
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u_int16_t npcb_vci; /* VCI */
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u_int8_t npcb_vpi; /* VPI */
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u_int8_t npcb_flags; /* flags */
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};
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/* flags */
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#define NPCB_FREE 0x01 /* free (not on any list) */
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#define NPCB_CONNECTED 0x02 /* connected */
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#define NPCB_IP 0x04 /* used by IP */
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#define NPCB_DRAIN 0x08 /* destory as soon as inq == 0 */
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#define NPCB_RAW 0x10 /* in 'raw' mode? */
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/* flag arg to npcb_free */
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#define NPCB_REMOVE 0 /* remove from global list */
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#define NPCB_DESTROY 1 /* destroy and be free */
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/*
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* NPCB_RAWCC is a hack which applies to connections in 'raw' mode. it
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* is used to override the sbspace() macro when you *really* don't want
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* to drop rcv data. the recv socket buffer size is raised to this value.
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*
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* XXX: socket buffering needs to be looked at.
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*/
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#define NPCB_RAWCC (1024*1024) /* 1MB */
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LIST_HEAD(npcblist, natmpcb);
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/* global data structures */
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extern struct npcblist natm_pcbs; /* global list of pcbs */
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#define NATM_STAT
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#ifdef NATM_STAT
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extern u_int natm_sodropcnt,
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natm_sodropbytes; /* account of droppage */
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extern u_int natm_sookcnt,
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natm_sookbytes; /* account of ok */
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#endif
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/* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
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struct atm_rawioctl {
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struct natmpcb *npcb;
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int rawvalue;
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};
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#define SIOCXRAWATM _IOWR('a', 125, struct atm_rawioctl)
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/* external functions */
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/* natm_pcb.c */
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struct natmpcb *npcb_alloc(int);
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void npcb_free(struct natmpcb *, int);
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struct natmpcb *npcb_add(struct natmpcb *, struct ifnet *, int, int);
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/* natm.c */
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int natm_usrreq(struct socket *, int, struct mbuf *,
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struct mbuf *, struct mbuf *, struct proc *);
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#elif defined(__FreeBSD__)
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#if __FreeBSD__ > 2
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/*
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* FreeBSD new usrreqs style appeared since 2.2. compatibility to old style
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* has gone since 3.0.
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*/
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#define FREEBSD_USRREQS
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extern struct pr_usrreqs natm_usrreqs;
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#else /* !( __FreeBSD__ > 2) */
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int natm_usrreq(struct socket *, int, struct mbuf *,
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struct mbuf *, struct mbuf *);
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#endif /* !( __FreeBSD__ > 2) */
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#endif
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int natm0_sysctl(int *, u_int, void *, size_t *, void *, size_t);
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int natm5_sysctl(int *, u_int, void *, size_t *, void *, size_t);
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void natmintr(struct mbuf *);
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#endif
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