- import of strongswan-2.7.0
- applied patch for charon
This commit is contained in:
Martin Willi
@@ -0,0 +1,124 @@
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/*
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* Copyright (C) 1999-2001 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: lwpacket.h,v 1.1 2004/03/15 20:35:25 as Exp $ */
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#ifndef LWRES_LWPACKET_H
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#define LWRES_LWPACKET_H 1
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#include <lwres/lang.h>
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#include <lwres/lwbuffer.h>
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#include <lwres/result.h>
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typedef struct lwres_lwpacket lwres_lwpacket_t;
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struct lwres_lwpacket {
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lwres_uint32_t length;
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lwres_uint16_t version;
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lwres_uint16_t pktflags;
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lwres_uint32_t serial;
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lwres_uint32_t opcode;
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lwres_uint32_t result;
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lwres_uint32_t recvlength;
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lwres_uint16_t authtype;
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lwres_uint16_t authlength;
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};
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#define LWRES_LWPACKET_LENGTH (4 * 5 + 2 * 4)
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#define LWRES_LWPACKETFLAG_RESPONSE 0x0001U /* if set, pkt is a response */
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#define LWRES_LWPACKETVERSION_0 0
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/*
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* "length" is the overall packet length, including the entire packet header.
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*
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* "version" specifies the header format. Currently, there is only one
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* format, LWRES_LWPACKETVERSION_0.
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*
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* "flags" specifies library-defined flags for this packet. None of these
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* are definable by the caller, but library-defined values can be set by
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* the caller. For example, one bit in this field indicates if the packet
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* is a request or a response.
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*
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* "serial" is set by the requestor and is returned in all replies. If two
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* packets from the same source have the same serial number and are from
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* the same source, they are assumed to be duplicates and the latter ones
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* may be dropped. (The library does not do this by default on replies, but
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* does so on requests.)
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*
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* "opcode" is application defined. Opcodes between 0x04000000 and 0xffffffff
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* are application defined. Opcodes between 0x00000000 and 0x03ffffff are
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* reserved for library use.
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*
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* "result" is application defined, and valid only on replies.
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* Results between 0x04000000 and 0xffffffff are application defined.
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* Results between 0x00000000 and 0x03ffffff are reserved for library use.
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* (This is the same reserved range defined in <isc/resultclass.h>, so it
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* would be trivial to map ISC_R_* result codes into packet result codes
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* when appropriate.)
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*
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* "recvlength" is set to the maximum buffer size that the receiver can
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* handle on requests, and the size of the buffer needed to satisfy a request
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* when the buffer is too large for replies.
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*
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* "authtype" is the packet level auth type used.
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* Authtypes between 0x1000 and 0xffff are application defined. Authtypes
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* between 0x0000 and 0x0fff are reserved for library use. This is currently
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* unused and MUST be set to zero.
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*
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* "authlen" is the length of the authentication data. See the specific
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* authtypes for more information on what is contained in this field. This
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* is currently unused, and MUST be set to zero.
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*
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* The remainder of the packet consists of two regions, one described by
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* "authlen" and one of "length - authlen - sizeof(lwres_lwpacket_t)".
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*
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* That is:
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*
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* pkt header
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* authlen bytes of auth information
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* data bytes
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*/
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/*
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* Currently defined opcodes:
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*
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* NOOP. Success is always returned, with the packet contents echoed.
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*
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* GETADDRSBYNAME. Return all known addresses for a given name.
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* This may return NIS or /etc/hosts info as well as DNS
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* information. Flags will be provided to indicate ip4/ip6
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* addresses are desired.
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*
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* GETNAMEBYADDR. Return the hostname for the given address. Once
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* again, it will return data from multiple sources.
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*/
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LWRES_LANG_BEGINDECLS
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/* XXXMLG document */
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lwres_result_t
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lwres_lwpacket_renderheader(lwres_buffer_t *b, lwres_lwpacket_t *pkt);
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lwres_result_t
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lwres_lwpacket_parseheader(lwres_buffer_t *b, lwres_lwpacket_t *pkt);
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LWRES_LANG_ENDDECLS
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#endif /* LWRES_LWPACKET_H */
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