mirror of
https://git.proxmox.com/git/qemu
synced 2025-10-26 05:20:22 +00:00
2f5f899631
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
294 lines
8.9 KiB
C
294 lines
8.9 KiB
C
/*
|
|
* 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.
|
|
* 3. 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.
|
|
*
|
|
* @(#)ip.h 8.1 (Berkeley) 6/10/93
|
|
* ip.h,v 1.3 1994/08/21 05:27:30 paul Exp
|
|
*/
|
|
|
|
#ifndef _IP_H_
|
|
#define _IP_H_
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
# ifndef NTOHL
|
|
# define NTOHL(d)
|
|
# endif
|
|
# ifndef NTOHS
|
|
# define NTOHS(d)
|
|
# endif
|
|
# ifndef HTONL
|
|
# define HTONL(d)
|
|
# endif
|
|
# ifndef HTONS
|
|
# define HTONS(d)
|
|
# endif
|
|
#else
|
|
# ifndef NTOHL
|
|
# define NTOHL(d) ((d) = ntohl((d)))
|
|
# endif
|
|
# ifndef NTOHS
|
|
# define NTOHS(d) ((d) = ntohs((u_int16_t)(d)))
|
|
# endif
|
|
# ifndef HTONL
|
|
# define HTONL(d) ((d) = htonl((d)))
|
|
# endif
|
|
# ifndef HTONS
|
|
# define HTONS(d) ((d) = htons((u_int16_t)(d)))
|
|
# endif
|
|
#endif
|
|
|
|
typedef u_int32_t n_long; /* long as received from the net */
|
|
|
|
/*
|
|
* Definitions for internet protocol version 4.
|
|
* Per RFC 791, September 1981.
|
|
*/
|
|
#define IPVERSION 4
|
|
|
|
/*
|
|
* Structure of an internet header, naked of options.
|
|
*/
|
|
struct ip {
|
|
#ifdef WORDS_BIGENDIAN
|
|
u_int ip_v:4, /* version */
|
|
ip_hl:4; /* header length */
|
|
#else
|
|
u_int ip_hl:4, /* header length */
|
|
ip_v:4; /* version */
|
|
#endif
|
|
u_int8_t ip_tos; /* type of service */
|
|
u_int16_t ip_len; /* total length */
|
|
u_int16_t ip_id; /* identification */
|
|
u_int16_t ip_off; /* fragment offset field */
|
|
#define IP_DF 0x4000 /* don't fragment flag */
|
|
#define IP_MF 0x2000 /* more fragments flag */
|
|
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
|
|
u_int8_t ip_ttl; /* time to live */
|
|
u_int8_t ip_p; /* protocol */
|
|
u_int16_t ip_sum; /* checksum */
|
|
struct in_addr ip_src,ip_dst; /* source and dest address */
|
|
};
|
|
|
|
#define IP_MAXPACKET 65535 /* maximum packet size */
|
|
|
|
/*
|
|
* Definitions for IP type of service (ip_tos)
|
|
*/
|
|
#define IPTOS_LOWDELAY 0x10
|
|
#define IPTOS_THROUGHPUT 0x08
|
|
#define IPTOS_RELIABILITY 0x04
|
|
|
|
/*
|
|
* Definitions for options.
|
|
*/
|
|
#define IPOPT_COPIED(o) ((o)&0x80)
|
|
#define IPOPT_CLASS(o) ((o)&0x60)
|
|
#define IPOPT_NUMBER(o) ((o)&0x1f)
|
|
|
|
#define IPOPT_CONTROL 0x00
|
|
#define IPOPT_RESERVED1 0x20
|
|
#define IPOPT_DEBMEAS 0x40
|
|
#define IPOPT_RESERVED2 0x60
|
|
|
|
#define IPOPT_EOL 0 /* end of option list */
|
|
#define IPOPT_NOP 1 /* no operation */
|
|
|
|
#define IPOPT_RR 7 /* record packet route */
|
|
#define IPOPT_TS 68 /* timestamp */
|
|
#define IPOPT_SECURITY 130 /* provide s,c,h,tcc */
|
|
#define IPOPT_LSRR 131 /* loose source route */
|
|
#define IPOPT_SATID 136 /* satnet id */
|
|
#define IPOPT_SSRR 137 /* strict source route */
|
|
|
|
/*
|
|
* Offsets to fields in options other than EOL and NOP.
|
|
*/
|
|
#define IPOPT_OPTVAL 0 /* option ID */
|
|
#define IPOPT_OLEN 1 /* option length */
|
|
#define IPOPT_OFFSET 2 /* offset within option */
|
|
#define IPOPT_MINOFF 4 /* min value of above */
|
|
|
|
/*
|
|
* Time stamp option structure.
|
|
*/
|
|
struct ip_timestamp {
|
|
u_int8_t ipt_code; /* IPOPT_TS */
|
|
u_int8_t ipt_len; /* size of structure (variable) */
|
|
u_int8_t ipt_ptr; /* index of current entry */
|
|
#ifdef WORDS_BIGENDIAN
|
|
u_int ipt_oflw:4, /* overflow counter */
|
|
ipt_flg:4; /* flags, see below */
|
|
#else
|
|
u_int ipt_flg:4, /* flags, see below */
|
|
ipt_oflw:4; /* overflow counter */
|
|
#endif
|
|
union ipt_timestamp {
|
|
n_long ipt_time[1];
|
|
struct ipt_ta {
|
|
struct in_addr ipt_addr;
|
|
n_long ipt_time;
|
|
} ipt_ta[1];
|
|
} ipt_timestamp;
|
|
};
|
|
|
|
/* flag bits for ipt_flg */
|
|
#define IPOPT_TS_TSONLY 0 /* timestamps only */
|
|
#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */
|
|
#define IPOPT_TS_PRESPEC 3 /* specified modules only */
|
|
|
|
/* bits for security (not byte swapped) */
|
|
#define IPOPT_SECUR_UNCLASS 0x0000
|
|
#define IPOPT_SECUR_CONFID 0xf135
|
|
#define IPOPT_SECUR_EFTO 0x789a
|
|
#define IPOPT_SECUR_MMMM 0xbc4d
|
|
#define IPOPT_SECUR_RESTR 0xaf13
|
|
#define IPOPT_SECUR_SECRET 0xd788
|
|
#define IPOPT_SECUR_TOPSECRET 0x6bc5
|
|
|
|
/*
|
|
* Internet implementation parameters.
|
|
*/
|
|
#define MAXTTL 255 /* maximum time to live (seconds) */
|
|
#define IPDEFTTL 64 /* default ttl, from RFC 1340 */
|
|
#define IPFRAGTTL 60 /* time to live for frags, slowhz */
|
|
#define IPTTLDEC 1 /* subtracted when forwarding */
|
|
|
|
#define IP_MSS 576 /* default maximum segment size */
|
|
|
|
#if SIZEOF_CHAR_P == 4
|
|
struct mbuf_ptr {
|
|
struct mbuf *mptr;
|
|
uint32_t dummy;
|
|
};
|
|
#else
|
|
struct mbuf_ptr {
|
|
struct mbuf *mptr;
|
|
};
|
|
#endif
|
|
struct qlink {
|
|
void *next, *prev;
|
|
};
|
|
|
|
/*
|
|
* Overlay for ip header used by other protocols (tcp, udp).
|
|
*/
|
|
struct ipovly {
|
|
struct mbuf_ptr ih_mbuf; /* backpointer to mbuf */
|
|
u_int8_t ih_x1; /* (unused) */
|
|
u_int8_t ih_pr; /* protocol */
|
|
u_int16_t ih_len; /* protocol length */
|
|
struct in_addr ih_src; /* source internet address */
|
|
struct in_addr ih_dst; /* destination internet address */
|
|
} __attribute__((packed));
|
|
|
|
/*
|
|
* Ip reassembly queue structure. Each fragment
|
|
* being reassembled is attached to one of these structures.
|
|
* They are timed out after ipq_ttl drops to 0, and may also
|
|
* be reclaimed if memory becomes tight.
|
|
* size 28 bytes
|
|
*/
|
|
struct ipq {
|
|
struct qlink frag_link; /* to ip headers of fragments */
|
|
struct qlink ip_link; /* to other reass headers */
|
|
u_int8_t ipq_ttl; /* time for reass q to live */
|
|
u_int8_t ipq_p; /* protocol of this fragment */
|
|
u_int16_t ipq_id; /* sequence id for reassembly */
|
|
struct in_addr ipq_src,ipq_dst;
|
|
};
|
|
|
|
/*
|
|
* Ip header, when holding a fragment.
|
|
*
|
|
* Note: ipf_link must be at same offset as frag_link above
|
|
*/
|
|
struct ipasfrag {
|
|
struct qlink ipf_link;
|
|
struct ip ipf_ip;
|
|
};
|
|
|
|
#define ipf_off ipf_ip.ip_off
|
|
#define ipf_tos ipf_ip.ip_tos
|
|
#define ipf_len ipf_ip.ip_len
|
|
#define ipf_next ipf_link.next
|
|
#define ipf_prev ipf_link.prev
|
|
|
|
/*
|
|
* Structure stored in mbuf in inpcb.ip_options
|
|
* and passed to ip_output when ip options are in use.
|
|
* The actual length of the options (including ipopt_dst)
|
|
* is in m_len.
|
|
*/
|
|
#define MAX_IPOPTLEN 40
|
|
|
|
struct ipoption {
|
|
struct in_addr ipopt_dst; /* first-hop dst if source routed */
|
|
int8_t ipopt_list[MAX_IPOPTLEN]; /* options proper */
|
|
};
|
|
|
|
#ifdef LOG_ENABLED
|
|
/*
|
|
* Structure attached to inpcb.ip_moptions and
|
|
* passed to ip_output when IP multicast options are in use.
|
|
*/
|
|
|
|
struct ipstat {
|
|
u_long ips_total; /* total packets received */
|
|
u_long ips_badsum; /* checksum bad */
|
|
u_long ips_tooshort; /* packet too short */
|
|
u_long ips_toosmall; /* not enough data */
|
|
u_long ips_badhlen; /* ip header length < data size */
|
|
u_long ips_badlen; /* ip length < ip header length */
|
|
u_long ips_fragments; /* fragments received */
|
|
u_long ips_fragdropped; /* frags dropped (dups, out of space) */
|
|
u_long ips_fragtimeout; /* fragments timed out */
|
|
u_long ips_forward; /* packets forwarded */
|
|
u_long ips_cantforward; /* packets rcvd for unreachable dest */
|
|
u_long ips_redirectsent; /* packets forwarded on same net */
|
|
u_long ips_noproto; /* unknown or unsupported protocol */
|
|
u_long ips_delivered; /* datagrams delivered to upper level*/
|
|
u_long ips_localout; /* total ip packets generated here */
|
|
u_long ips_odropped; /* lost packets due to nobufs, etc. */
|
|
u_long ips_reassembled; /* total packets reassembled ok */
|
|
u_long ips_fragmented; /* datagrams successfully fragmented */
|
|
u_long ips_ofragments; /* output fragments created */
|
|
u_long ips_cantfrag; /* don't fragment flag was set, etc. */
|
|
u_long ips_badoptions; /* error in option processing */
|
|
u_long ips_noroute; /* packets discarded due to no route */
|
|
u_long ips_badvers; /* ip version != 4 */
|
|
u_long ips_rawout; /* total raw ip packets generated */
|
|
u_long ips_unaligned; /* times the ip packet was not aligned */
|
|
};
|
|
|
|
extern struct ipstat ipstat;
|
|
#endif
|
|
|
|
extern struct ipq ipq; /* ip reass. queue */
|
|
extern u_int16_t ip_id; /* ip packet ctr, for ids */
|
|
|
|
#endif
|