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Diffstat (limited to 'slirp/src/ip.h')
| m--------- | slirp | 0 | ||||
| -rw-r--r-- | slirp/src/ip.h | 242 |
2 files changed, 0 insertions, 242 deletions
diff --git a/slirp b/slirp new file mode 160000 +Subproject 59a1b1f165458c2acb7ff0525b543945f741622 diff --git a/slirp/src/ip.h b/slirp/src/ip.h deleted file mode 100644 index 1484de1176..0000000000 --- a/slirp/src/ip.h +++ /dev/null @@ -1,242 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause */ -/* - * 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 - -#include <glib.h> - -#if G_BYTE_ORDER == G_BIG_ENDIAN -# undef NTOHL -# undef NTOHS -# undef HTONL -# undef HTONS -# define NTOHL(d) -# define NTOHS(d) -# define HTONL(d) -# define HTONS(d) -#else -# ifndef NTOHL -# define NTOHL(d) ((d) = ntohl((d))) -# endif -# ifndef NTOHS -# define NTOHS(d) ((d) = ntohs((uint16_t)(d))) -# endif -# ifndef HTONL -# define HTONL(d) ((d) = htonl((d))) -# endif -# ifndef HTONS -# define HTONS(d) ((d) = htons((uint16_t)(d))) -# endif -#endif - -typedef uint32_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 { -#if G_BYTE_ORDER == G_BIG_ENDIAN - uint8_t ip_v:4, /* version */ - ip_hl:4; /* header length */ -#else - uint8_t ip_hl:4, /* header length */ - ip_v:4; /* version */ -#endif - uint8_t ip_tos; /* type of service */ - uint16_t ip_len; /* total length */ - uint16_t ip_id; /* identification */ - uint16_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 */ - uint8_t ip_ttl; /* time to live */ - uint8_t ip_p; /* protocol */ - uint16_t ip_sum; /* checksum */ - struct in_addr ip_src,ip_dst; /* source and dest address */ -} SLIRP_PACKED; - -#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 { - uint8_t ipt_code; /* IPOPT_TS */ - uint8_t ipt_len; /* size of structure (variable) */ - uint8_t ipt_ptr; /* index of current entry */ -#if G_BYTE_ORDER == G_BIG_ENDIAN - uint8_t ipt_oflw:4, /* overflow counter */ - ipt_flg:4; /* flags, see below */ -#else - uint8_t 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; -} SLIRP_PACKED; - -/* 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 GLIB_SIZEOF_VOID_P == 4 -struct mbuf_ptr { - struct mbuf *mptr; - uint32_t dummy; -} SLIRP_PACKED; -#else -struct mbuf_ptr { - struct mbuf *mptr; -} SLIRP_PACKED; -#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 */ - uint8_t ih_x1; /* (unused) */ - uint8_t ih_pr; /* protocol */ - uint16_t ih_len; /* protocol length */ - struct in_addr ih_src; /* source internet address */ - struct in_addr ih_dst; /* destination internet address */ -} SLIRP_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 */ - uint8_t ipq_ttl; /* time for reass q to live */ - uint8_t ipq_p; /* protocol of this fragment */ - uint16_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; -}; - -G_STATIC_ASSERT(offsetof(struct ipq, frag_link) == - offsetof(struct ipasfrag, ipf_link)); - -#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 - -#endif |