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root/cebix/BasiliskII/src/slirp/ip_icmp.h
Revision: 1.4
Committed: 2012-03-30T01:10:28Z (12 years, 1 month ago) by asvitkine
Content type: text/plain
Branch: MAIN
CVS Tags: HEAD
Changes since 1.3: +1 -5 lines
Log Message: 
Switch slirp to 3-clause BSD license. This change went in upstream to QEMU's
version of slirp (where this code comes from), with the following checkin:

commit 2f5f89963186d42a7ded253bc6cf5b32abb45cec
Author: aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>
Date:   Mon Jan 26 19:37:41 2009 +0000

    Remove the advertising clause from the slirp license

    According to the FSF, the 4-clause BSD license, which slirp is covered under,
    is not compatible with the GPL or LGPL[1].

    [1] http://www.fsf.org/licensing/licenses/index_html#GPLIncompatibleLicenses

    There are three declared copyright holders in slirp that use the 4-clause
    BSD license, the Regents of UC Berkley, Danny Gasparovski, and Kelly Price.
    Below are the appropriate permissions to remove the advertise clause from slirp
    from each party.

    Special thanks go to Richard Fontana from Red Hat for contacting all of the
    necessary authors to resolve this issue!

    Regents of UC Berkley:
    From ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

    July 22, 1999

    To All Licensees, Distributors of Any Version of BSD:

    As you know, certain of the Berkeley Software Distribution ("BSD") source
    code files require that further distributions of products containing all or
    portions of the software, acknowledge within their advertising materials
    that such products contain software developed by UC Berkeley and its
    contributors.

    Specifically, the provision reads:

    "     * 3. All advertising materials mentioning features or use of this software
          *    must display the following acknowledgement:
          *    This product includes software developed by the University of
          *    California, Berkeley and its contributors."

    Effective immediately, licensees and distributors are no longer required to
    include the acknowledgement within advertising materials.  Accordingly, the
    foregoing paragraph of those BSD Unix files containing it is hereby deleted
    in its entirety.

    William Hoskins
    Director, Office of Technology Licensing
    University of California, Berkeley

    Danny Gasparovski:

    Subject: RE: Slirp license
    Date: Thu, 8 Jan 2009 10:51:00 +1100
    From: "Gasparovski, Daniel" <Daniel.Gasparovski@ato.gov.au>
    To: "Richard Fontana" <rfontana@redhat.com>

    Hi Richard,

    I have no objection to having Slirp code in QEMU be licensed under the
    3-clause BSD license.

    Thanks for taking the effort to consult me about this.


    Dan ...

    Kelly Price:

    Date: Thu, 8 Jan 2009 19:38:56 -0500
    From: "Kelly Price" <strredwolf@gmail.com>
    To: "Richard Fontana" <rfontana@redhat.com>
    Subject: Re: Slirp license

    Thanks for contacting me, Richard.  I'm glad you were able to find
    Dan, as I've been "keeping the light on" for Slirp.  I have no use for
    it now, and I have little time for it (now holding onto Keenspot's
    Comic Genesis and having a regular US state government position). If
    Dan would like to return to the project, I'd love to give it back to
    him.

    As for copyright, I don't own all of it.  Dan does, so I will defer to
    him.  Any of my patches I will gladly license to the 3-part BSD
    license.  My interest in re-licensing was because we didn't have ready
    info to contact Dan.  If Dan would like to port Slirp back out of
    QEMU, a lot of us 64-bit users would be grateful.

    Feel free to share this email address with Dan.  I will be glad to
    effect a transfer of the project to him and Mr. Bellard of the QEMU
    project.

    Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


    git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6451 c046a42c-6fe2-441c-8c8c-71466251a162

File Contents

# Content
1 /*
2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
30 * ip_icmp.h,v 1.4 1995/05/30 08:09:43 rgrimes Exp
31 */
32
33 #ifndef _NETINET_IP_ICMP_H_
34 #define _NETINET_IP_ICMP_H_
35
36 /*
37 * Interface Control Message Protocol Definitions.
38 * Per RFC 792, September 1981.
39 */
40
41 typedef u_int32_t n_time;
42
43 /*
44 * Structure of an icmp header.
45 */
46 #ifdef PRAGMA_PACK_SUPPORTED
47 #pragma pack(1)
48 #endif
49
50 struct icmp {
51 u_char icmp_type; /* type of message, see below */
52 u_char icmp_code; /* type sub code */
53 u_short icmp_cksum; /* ones complement cksum of struct */
54 union {
55 u_char ih_pptr; /* ICMP_PARAMPROB */
56 struct in_addr ih_gwaddr; /* ICMP_REDIRECT */
57 struct ih_idseq {
58 u_short icd_id;
59 u_short icd_seq;
60 } ih_idseq;
61 int ih_void;
62
63 /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
64 struct ih_pmtu {
65 u_short ipm_void;
66 u_short ipm_nextmtu;
67 } ih_pmtu;
68 } icmp_hun;
69 #define icmp_pptr icmp_hun.ih_pptr
70 #define icmp_gwaddr icmp_hun.ih_gwaddr
71 #define icmp_id icmp_hun.ih_idseq.icd_id
72 #define icmp_seq icmp_hun.ih_idseq.icd_seq
73 #define icmp_void icmp_hun.ih_void
74 #define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
75 #define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
76 union {
77 struct id_ts {
78 n_time its_otime;
79 n_time its_rtime;
80 n_time its_ttime;
81 } id_ts;
82 struct id_ip {
83 struct ip idi_ip;
84 /* options and then 64 bits of data */
85 } id_ip;
86 uint32_t id_mask;
87 char id_data[1];
88 } icmp_dun;
89 #define icmp_otime icmp_dun.id_ts.its_otime
90 #define icmp_rtime icmp_dun.id_ts.its_rtime
91 #define icmp_ttime icmp_dun.id_ts.its_ttime
92 #define icmp_ip icmp_dun.id_ip.idi_ip
93 #define icmp_mask icmp_dun.id_mask
94 #define icmp_data icmp_dun.id_data
95 } PACKED__;
96
97 #ifdef PRAGMA_PACK_SUPPORTED
98 #pragma pack(0)
99 #endif
100
101 /*
102 * Lower bounds on packet lengths for various types.
103 * For the error advice packets must first insure that the
104 * packet is large enought to contain the returned ip header.
105 * Only then can we do the check to see if 64 bits of packet
106 * data have been returned, since we need to check the returned
107 * ip header length.
108 */
109 #define ICMP_MINLEN 8 /* abs minimum */
110 #define ICMP_TSLEN (8 + 3 * sizeof (n_time)) /* timestamp */
111 #define ICMP_MASKLEN 12 /* address mask */
112 #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */
113 #define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8)
114 /* N.B.: must separately check that ip_hl >= 5 */
115
116 /*
117 * Definition of type and code field values.
118 */
119 #define ICMP_ECHOREPLY 0 /* echo reply */
120 #define ICMP_UNREACH 3 /* dest unreachable, codes: */
121 #define ICMP_UNREACH_NET 0 /* bad net */
122 #define ICMP_UNREACH_HOST 1 /* bad host */
123 #define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */
124 #define ICMP_UNREACH_PORT 3 /* bad port */
125 #define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */
126 #define ICMP_UNREACH_SRCFAIL 5 /* src route failed */
127 #define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */
128 #define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */
129 #define ICMP_UNREACH_ISOLATED 8 /* src host isolated */
130 #define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */
131 #define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */
132 #define ICMP_UNREACH_TOSNET 11 /* bad tos for net */
133 #define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */
134 #define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */
135 #define ICMP_REDIRECT 5 /* shorter route, codes: */
136 #define ICMP_REDIRECT_NET 0 /* for network */
137 #define ICMP_REDIRECT_HOST 1 /* for host */
138 #define ICMP_REDIRECT_TOSNET 2 /* for tos and net */
139 #define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */
140 #define ICMP_ECHO 8 /* echo service */
141 #define ICMP_ROUTERADVERT 9 /* router advertisement */
142 #define ICMP_ROUTERSOLICIT 10 /* router solicitation */
143 #define ICMP_TIMXCEED 11 /* time exceeded, code: */
144 #define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */
145 #define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */
146 #define ICMP_PARAMPROB 12 /* ip header bad */
147 #define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */
148 #define ICMP_TSTAMP 13 /* timestamp request */
149 #define ICMP_TSTAMPREPLY 14 /* timestamp reply */
150 #define ICMP_IREQ 15 /* information request */
151 #define ICMP_IREQREPLY 16 /* information reply */
152 #define ICMP_MASKREQ 17 /* address mask request */
153 #define ICMP_MASKREPLY 18 /* address mask reply */
154
155 #define ICMP_MAXTYPE 18
156
157 #define ICMP_INFOTYPE(type) \
158 ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
159 (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \
160 (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
161 (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
162 (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)
163
164 void icmp_input _P((struct mbuf *, int));
165 void icmp_error _P((struct mbuf *, u_char, u_char, int, char *));
166 void icmp_reflect _P((struct mbuf *));
167
168 #endif