b5b75a7d19
based on the existing net/if_spppsubr.c stuff. While there are completely userland (bpf based) implementations available, those have a vastly larger per packet overhead thus causing major CPU overhead and higher latency. On an i386 base router, running a 486DX at 50MHz my line (768kBit/s downstream) was limited to something (varying) between 10 and 20 kByte/s effective download rate. With this implementation I get full bandwidth (~85kByte/s). This is client side only. Arguably the right way to add full PPPoE support (including server side) would be a variation of the ppp line discipline and appropriate modifications to pppd. I promise every help I can give to anyone doing that - but I needed this realy fast. Besids, on low memory NAT boxes with typically a single PPPoE connection, this implementation is more lightweight than a pppd based one, which nicely fits my needs.
55 lines
2.2 KiB
C
55 lines
2.2 KiB
C
/* $NetBSD: if_pppoe.h,v 1.1 2001/04/29 09:50:37 martin Exp $ */
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/*
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* Copyright (c) 2001 Martin Husemann. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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*/
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struct pppoediscparms {
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char ifname[IFNAMSIZ]; /* pppoe interface name */
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char eth_ifname[IFNAMSIZ]; /* external ethernet interface name */
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char *ac_name; /* access concentrator name (or NULL) */
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size_t ac_name_len; /* on write: length of buffer for ac_name */
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char *service_name; /* service name (or NULL) */
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size_t service_name_len; /* on write: length of buffer for service name */
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};
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#define PPPOESETPARMS _IOW('i', 110, struct pppoediscparms)
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#define PPPOEGETPARMS _IOR('i', 111, struct pppoediscparms)
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#ifdef _KERNEL
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extern struct ifqueue ppoediscinq;
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extern struct ifqueue ppoeinq;
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#ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
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extern void * pppoe_softintr; /* softinterrupt cookie */
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#else
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extern struct callout pppoe_softintr; /* callout (poor mans softint) */
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extern void pppoe_softintr_handler(void*); /* handler function */
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#endif
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#endif /* _KERNEL */
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