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Diffstat (limited to 'slirp/src/tcp.h')
| m--------- | slirp | 0 | ||||
| -rw-r--r-- | slirp/src/tcp.h | 181 |
2 files changed, 0 insertions, 181 deletions
diff --git a/slirp b/slirp new file mode 160000 +Subproject 59a1b1f165458c2acb7ff0525b543945f741622 diff --git a/slirp/src/tcp.h b/slirp/src/tcp.h deleted file mode 100644 index 79d3251bb5..0000000000 --- a/slirp/src/tcp.h +++ /dev/null @@ -1,181 +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. - * - * @(#)tcp.h 8.1 (Berkeley) 6/10/93 - * tcp.h,v 1.3 1994/08/21 05:27:34 paul Exp - */ - -#ifndef TCP_H -#define TCP_H - -#include <glib.h> - -typedef uint32_t tcp_seq; - -#define PR_SLOWHZ 2 /* 2 slow timeouts per second (approx) */ -#define PR_FASTHZ 5 /* 5 fast timeouts per second (not important) */ - -#define TCP_SNDSPACE 8192 -#define TCP_RCVSPACE 8192 - -/* - * TCP header. - * Per RFC 793, September, 1981. - */ -#define tcphdr slirp_tcphdr -struct tcphdr { - uint16_t th_sport; /* source port */ - uint16_t th_dport; /* destination port */ - tcp_seq th_seq; /* sequence number */ - tcp_seq th_ack; /* acknowledgement number */ -#if G_BYTE_ORDER == G_BIG_ENDIAN - uint8_t th_off:4, /* data offset */ - th_x2:4; /* (unused) */ -#else - uint8_t th_x2:4, /* (unused) */ - th_off:4; /* data offset */ -#endif - uint8_t th_flags; - uint16_t th_win; /* window */ - uint16_t th_sum; /* checksum */ - uint16_t th_urp; /* urgent pointer */ -}; - -#include "tcp_var.h" - -#ifndef TH_FIN -#define TH_FIN 0x01 -#define TH_SYN 0x02 -#define TH_RST 0x04 -#define TH_PUSH 0x08 -#define TH_ACK 0x10 -#define TH_URG 0x20 -#endif - -#ifndef TCPOPT_EOL -#define TCPOPT_EOL 0 -#define TCPOPT_NOP 1 -#define TCPOPT_MAXSEG 2 -#define TCPOPT_WINDOW 3 -#define TCPOPT_SACK_PERMITTED 4 /* Experimental */ -#define TCPOPT_SACK 5 /* Experimental */ -#define TCPOPT_TIMESTAMP 8 - -#define TCPOPT_TSTAMP_HDR \ - (TCPOPT_NOP<<24|TCPOPT_NOP<<16|TCPOPT_TIMESTAMP<<8|TCPOLEN_TIMESTAMP) -#endif - -#ifndef TCPOLEN_MAXSEG -#define TCPOLEN_MAXSEG 4 -#define TCPOLEN_WINDOW 3 -#define TCPOLEN_SACK_PERMITTED 2 -#define TCPOLEN_TIMESTAMP 10 -#define TCPOLEN_TSTAMP_APPA (TCPOLEN_TIMESTAMP+2) /* appendix A */ -#endif - -/* - * Default maximum segment size for TCP. - * With an IP MSS of 576, this is 536, - * but 512 is probably more convenient. - * This should be defined as MIN(512, IP_MSS - sizeof (struct tcpiphdr)). - * - * We make this 1460 because we only care about Ethernet in the qemu context. - */ -#undef TCP_MSS -#define TCP_MSS 1460 -#undef TCP6_MSS -#define TCP6_MSS 1440 - -#undef TCP_MAXWIN -#define TCP_MAXWIN 65535 /* largest value for (unscaled) window */ - -#undef TCP_MAX_WINSHIFT -#define TCP_MAX_WINSHIFT 14 /* maximum window shift */ - -/* - * User-settable options (used with setsockopt). - * - * We don't use the system headers on unix because we have conflicting - * local structures. We can't avoid the system definitions on Windows, - * so we undefine them. - */ -#undef TCP_NODELAY -#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */ -#undef TCP_MAXSEG - -/* - * TCP FSM state definitions. - * Per RFC793, September, 1981. - */ - -#define TCP_NSTATES 11 - -#define TCPS_CLOSED 0 /* closed */ -#define TCPS_LISTEN 1 /* listening for connection */ -#define TCPS_SYN_SENT 2 /* active, have sent syn */ -#define TCPS_SYN_RECEIVED 3 /* have send and received syn */ -/* states < TCPS_ESTABLISHED are those where connections not established */ -#define TCPS_ESTABLISHED 4 /* established */ -#define TCPS_CLOSE_WAIT 5 /* rcvd fin, waiting for close */ -/* states > TCPS_CLOSE_WAIT are those where user has closed */ -#define TCPS_FIN_WAIT_1 6 /* have closed, sent fin */ -#define TCPS_CLOSING 7 /* closed xchd FIN; await FIN ACK */ -#define TCPS_LAST_ACK 8 /* had fin and close; await FIN ACK */ -/* states > TCPS_CLOSE_WAIT && < TCPS_FIN_WAIT_2 await ACK of FIN */ -#define TCPS_FIN_WAIT_2 9 /* have closed, fin is acked */ -#define TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */ - -#define TCPS_HAVERCVDSYN(s) ((s) >= TCPS_SYN_RECEIVED) -#define TCPS_HAVEESTABLISHED(s) ((s) >= TCPS_ESTABLISHED) -#define TCPS_HAVERCVDFIN(s) ((s) >= TCPS_TIME_WAIT) - -/* - * TCP sequence numbers are 32 bit integers operated - * on with modular arithmetic. These macros can be - * used to compare such integers. - */ -#define SEQ_LT(a,b) ((int)((a)-(b)) < 0) -#define SEQ_LEQ(a,b) ((int)((a)-(b)) <= 0) -#define SEQ_GT(a,b) ((int)((a)-(b)) > 0) -#define SEQ_GEQ(a,b) ((int)((a)-(b)) >= 0) - -/* - * Macros to initialize tcp sequence numbers for - * send and receive from initial send and receive - * sequence numbers. - */ -#define tcp_rcvseqinit(tp) \ - (tp)->rcv_adv = (tp)->rcv_nxt = (tp)->irs + 1 - -#define tcp_sendseqinit(tp) \ - (tp)->snd_una = (tp)->snd_nxt = (tp)->snd_max = (tp)->snd_up = (tp)->iss - -#define TCP_ISSINCR (125*1024) /* increment for tcp_iss each second */ - -#endif |