The Tor Browser: netwerk/sctp/src/user_ip_icmp.h@ca08bd8f51b2 (annotated)

netwerk/sctp/src/user_ip_icmp.h@ca08bd8f51b2 (annotated)

netwerk/sctp/src/user_ip_icmp.h

Wed, 31 Dec 2014 06:55:46 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:46 +0100
changeset 1: ca08bd8f51b2
permissions: -rwxr-xr-x

Added tag TORBROWSER_REPLICA for changeset 6474c204b198

 /*-
  * Copyright (c) 1982, 1986, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 4. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  */
 #ifndef _USER_IP_ICMP_H_
 #define _USER_IP_ICMP_H_
 /*
  * Interface Control Message Protocol Definitions.
  * Per RFC 792, September 1981.
  */
 /*
  * Internal of an ICMP Router Advertisement
  */
 struct icmp_ra_addr {
 	u_int32_t ira_addr;
 	u_int32_t ira_preference;
 };
 /*
  * Structure of an icmp header.
  */
 struct icmphdr {
 	u_char	icmp_type;		/* type of message, see below */
 	u_char	icmp_code;		/* type sub code */
 	u_short	icmp_cksum;		/* ones complement cksum of struct */
 };
 #if defined(__Userspace_os_Windows)
 struct icmp6_hdr {
 	u_int8_t icmp6_type;
 	u_int8_t icmp6_code;
 	u_int16_t icmp6_cksum;
 	union {
 		u_int32_t icmp6_un_data32[1];
 		u_int16_t icmp6_un_data16[2];
 		u_int8_t icmp6_un_data8[4];
 	} icmp6_dataun;
 } __packed;
 #define icmp6_data32 icmp6_dataun.icmp6_un_data32
 #define icmp6_mtu icmp6_data32[0]
 #endif
 /*
  * Structure of an icmp packet.
  *
  * XXX: should start with a struct icmphdr.
  */
 struct icmp {
 	u_char	icmp_type;		/* type of message, see below */
 	u_char	icmp_code;		/* type sub code */
 	u_short	icmp_cksum;		/* ones complement cksum of struct */
 	union {
 		u_char ih_pptr;			/* ICMP_PARAMPROB */
 		struct in_addr ih_gwaddr;	/* ICMP_REDIRECT */
 		struct ih_idseq {
 			uint16_t	icd_id;	/* network format */
 			uint16_t	icd_seq; /* network format */
 		} ih_idseq;
 		int ih_void;
 		/* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
 		struct ih_pmtu {
 			uint16_t ipm_void;	/* network format */
 			uint16_t ipm_nextmtu;	/* network format */
 		} ih_pmtu;
 		struct ih_rtradv {
 			u_char irt_num_addrs;
 			u_char irt_wpa;
 			u_int16_t irt_lifetime;
 		} ih_rtradv;
 	} icmp_hun;
 #define	icmp_pptr	icmp_hun.ih_pptr
 #define	icmp_gwaddr	icmp_hun.ih_gwaddr
 #define	icmp_id		icmp_hun.ih_idseq.icd_id
 #define	icmp_seq	icmp_hun.ih_idseq.icd_seq
 #define	icmp_void	icmp_hun.ih_void
 #define	icmp_pmvoid	icmp_hun.ih_pmtu.ipm_void
 #define	icmp_nextmtu	icmp_hun.ih_pmtu.ipm_nextmtu
 #define	icmp_num_addrs	icmp_hun.ih_rtradv.irt_num_addrs
 #define	icmp_wpa	icmp_hun.ih_rtradv.irt_wpa
 #define	icmp_lifetime	icmp_hun.ih_rtradv.irt_lifetime
 	union {
 		struct id_ts {			/* ICMP Timestamp */
 			/*
 			 * The next 3 fields are in network format,
 			 * milliseconds since 00:00 GMT
 			 */
 			uint32_t its_otime;	/* Originate */
 			uint32_t its_rtime;	/* Receive */
 			uint32_t its_ttime;	/* Transmit */
 		} id_ts;
 		struct id_ip  {
 			struct ip idi_ip;
 			/* options and then 64 bits of data */
 		} id_ip;
 		struct icmp_ra_addr id_radv;
 		u_int32_t id_mask;
 		char	id_data[1];
 	} icmp_dun;
 #define	icmp_otime	icmp_dun.id_ts.its_otime
 #define	icmp_rtime	icmp_dun.id_ts.its_rtime
 #define	icmp_ttime	icmp_dun.id_ts.its_ttime
 #define	icmp_ip		icmp_dun.id_ip.idi_ip
 #define	icmp_radv	icmp_dun.id_radv
 #define	icmp_mask	icmp_dun.id_mask
 #define	icmp_data	icmp_dun.id_data
 };
 /*
  * Lower bounds on packet lengths for various types.
  * For the error advice packets must first insure that the
  * packet is large enough to contain the returned ip header.
  * Only then can we do the check to see if 64 bits of packet
  * data have been returned, since we need to check the returned
  * ip header length.
  */
 #define	ICMP_MINLEN	8				/* abs minimum */
 #define	ICMP_TSLEN	(8 + 3 * sizeof (uint32_t))	/* timestamp */
 #define	ICMP_MASKLEN	12				/* address mask */
 #define	ICMP_ADVLENMIN	(8 + sizeof (struct ip) + 8)	/* min */
 #define	ICMP_ADVLEN(p)	(8 + ((p)->icmp_ip.ip_hl << 2) + 8)
 	/* N.B.: must separately check that ip_hl >= 5 */
 /*
  * Definition of type and code field values.
  */
 #define	ICMP_ECHOREPLY		0		/* echo reply */
 #define	ICMP_UNREACH		3		/* dest unreachable, codes: */
 #define		ICMP_UNREACH_NET	0		/* bad net */
 #define		ICMP_UNREACH_HOST	1		/* bad host */
 #define		ICMP_UNREACH_PROTOCOL	2		/* bad protocol */
 #define		ICMP_UNREACH_PORT	3		/* bad port */
 #define		ICMP_UNREACH_NEEDFRAG	4		/* IP_DF caused drop */
 #define		ICMP_UNREACH_SRCFAIL	5		/* src route failed */
 #define		ICMP_UNREACH_NET_UNKNOWN 6		/* unknown net */
 #define		ICMP_UNREACH_HOST_UNKNOWN 7		/* unknown host */
 #define		ICMP_UNREACH_ISOLATED	8		/* src host isolated */
 #define		ICMP_UNREACH_NET_PROHIB	9		/* prohibited access */
 #define		ICMP_UNREACH_HOST_PROHIB 10		/* ditto */
 #define		ICMP_UNREACH_TOSNET	11		/* bad tos for net */
 #define		ICMP_UNREACH_TOSHOST	12		/* bad tos for host */
 #define		ICMP_UNREACH_FILTER_PROHIB 13		/* admin prohib */
 #define		ICMP_UNREACH_HOST_PRECEDENCE 14		/* host prec vio. */
 #define		ICMP_UNREACH_PRECEDENCE_CUTOFF 15	/* prec cutoff */
 #define	ICMP_SOURCEQUENCH	4		/* packet lost, slow down */
 #define	ICMP_REDIRECT		5		/* shorter route, codes: */
 #define		ICMP_REDIRECT_NET	0		/* for network */
 #define		ICMP_REDIRECT_HOST	1		/* for host */
 #define		ICMP_REDIRECT_TOSNET	2		/* for tos and net */
 #define		ICMP_REDIRECT_TOSHOST	3		/* for tos and host */
 #define	ICMP_ALTHOSTADDR	6		/* alternate host address */
 #define	ICMP_ECHO		8		/* echo service */
 #define	ICMP_ROUTERADVERT	9		/* router advertisement */
 #define		ICMP_ROUTERADVERT_NORMAL		0	/* normal advertisement */
 #define		ICMP_ROUTERADVERT_NOROUTE_COMMON	16	/* selective routing */
 #define	ICMP_ROUTERSOLICIT	10		/* router solicitation */
 #define	ICMP_TIMXCEED		11		/* time exceeded, code: */
 #define		ICMP_TIMXCEED_INTRANS	0		/* ttl==0 in transit */
 #define		ICMP_TIMXCEED_REASS	1		/* ttl==0 in reass */
 #define	ICMP_PARAMPROB		12		/* ip header bad */
 #define		ICMP_PARAMPROB_ERRATPTR 0		/* error at param ptr */
 #define		ICMP_PARAMPROB_OPTABSENT 1		/* req. opt. absent */
 #define		ICMP_PARAMPROB_LENGTH 2			/* bad length */
 #define	ICMP_TSTAMP		13		/* timestamp request */
 #define	ICMP_TSTAMPREPLY	14		/* timestamp reply */
 #define	ICMP_IREQ		15		/* information request */
 #define	ICMP_IREQREPLY		16		/* information reply */
 #define	ICMP_MASKREQ		17		/* address mask request */
 #define	ICMP_MASKREPLY		18		/* address mask reply */
 #define	ICMP_TRACEROUTE		30		/* traceroute */
 #define	ICMP_DATACONVERR	31		/* data conversion error */
 #define	ICMP_MOBILE_REDIRECT	32		/* mobile host redirect */
 #define	ICMP_IPV6_WHEREAREYOU	33		/* IPv6 where-are-you */
 #define	ICMP_IPV6_IAMHERE	34		/* IPv6 i-am-here */
 #define	ICMP_MOBILE_REGREQUEST	35		/* mobile registration req */
 #define	ICMP_MOBILE_REGREPLY	36		/* mobile registration reply */
 #define	ICMP_SKIP		39		/* SKIP */
 #define	ICMP_PHOTURIS		40		/* Photuris */
 #define		ICMP_PHOTURIS_UNKNOWN_INDEX	1	/* unknown sec index */
 #define		ICMP_PHOTURIS_AUTH_FAILED	2	/* auth failed */
 #define		ICMP_PHOTURIS_DECRYPT_FAILED	3	/* decrypt failed */
 #define	ICMP_MAXTYPE		40
 #define	ICMP_INFOTYPE(type) \
 	((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
 	(type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
 	(type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
 	(type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
 	(type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
 #endif

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netwerk/sctp/src/user_ip_icmp.h@ca08bd8f51b2 (annotated)

netwerk/sctp/src/user_ip_icmp.h