f36bba96f5
a definite setup was broken: two ng_ksockets are connected to each other, connect()ed to different remote hosts, and bind()ed to different local interfaces. In this case one ng_ksocket is fooled with tag from the other one. Put node id into tag. In rcvdata method utilize tag only if it has our own id inside or id equals zero. The latter case is added to support packets send by some third, not ng_ksocket node. MFC after: 1 week
112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/*
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* ng_ksocket.h
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*/
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/*-
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* Copyright (c) 1996-1999 Whistle Communications, Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Whistle Communications;
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* provided, however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Whistle
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* Communications, Inc. trademarks, including the mark "WHISTLE
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* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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* such appears in the above copyright notice or in the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* Author: Archie Cobbs <archie@freebsd.org>
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*
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* $FreeBSD$
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* $Whistle: ng_ksocket.h,v 1.1 1999/11/16 20:04:40 archie Exp $
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*/
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#ifndef _NETGRAPH_NG_KSOCKET_H_
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#define _NETGRAPH_NG_KSOCKET_H_
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#include <sys/socket.h>
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/* Node type name and magic cookie */
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#define NG_KSOCKET_NODE_TYPE "ksocket"
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#define NGM_KSOCKET_COOKIE 942710669
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/* For NGM_KSOCKET_SETOPT and NGM_KSOCKET_GETOPT control messages */
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struct ng_ksocket_sockopt {
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int32_t level; /* second arg of [gs]etsockopt() */
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int32_t name; /* third arg of [gs]etsockopt() */
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u_char value[0]; /* fourth arg of [gs]etsockopt() */
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};
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/* Max length socket option we can return via NGM_KSOCKET_GETOPT
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XXX This should not be necessary, we should dynamically size
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XXX the response. Until then.. */
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#define NG_KSOCKET_MAX_OPTLEN 1024
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/* Keep this in sync with the above structure definition */
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#define NG_KSOCKET_SOCKOPT_INFO(svtype) { \
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{ "level", &ng_parse_int32_type }, \
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{ "name", &ng_parse_int32_type }, \
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{ "value", (svtype) }, \
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{ NULL } \
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}
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/* For NGM_KSOCKET_ACCEPT control message responses */
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struct ng_ksocket_accept {
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u_int32_t nodeid; /* node ID of connected ksocket */
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struct sockaddr addr; /* peer's address (variable length) */
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};
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/* Keep this in sync with the above structure definition */
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#define NGM_KSOCKET_ACCEPT_INFO { \
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{ "nodeid", &ng_parse_hint32_type }, \
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{ "addr", &ng_ksocket_generic_sockaddr_type }, \
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{ NULL } \
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}
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/* Netgraph commands */
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enum {
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NGM_KSOCKET_BIND = 1,
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NGM_KSOCKET_LISTEN,
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NGM_KSOCKET_ACCEPT,
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NGM_KSOCKET_CONNECT,
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NGM_KSOCKET_GETNAME,
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NGM_KSOCKET_GETPEERNAME,
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NGM_KSOCKET_SETOPT,
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NGM_KSOCKET_GETOPT,
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};
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#ifdef _KERNEL
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/* Structure for sockaddr tag */
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struct sa_tag {
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struct m_tag tag;
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ng_ID_t id;
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struct sockaddr sa;
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};
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/* Tag information ID's */
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#define NG_KSOCKET_TAG_SOCKADDR 1 /* data is struct sockaddr */
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#endif /* _KERNEL */
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#endif /* _NETGRAPH_NG_KSOCKET_H_ */
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