X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/43866e378188c25dd1e2208016ab3cbeb086ae6c..c3c9b80d004dbbfdf763edeb97968c6997e3b45b:/bsd/netinet/tcp_fsm.h diff --git a/bsd/netinet/tcp_fsm.h b/bsd/netinet/tcp_fsm.h index 7b9b0732d..dab262972 100644 --- a/bsd/netinet/tcp_fsm.h +++ b/bsd/netinet/tcp_fsm.h @@ -1,17 +1,20 @@ /* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. - * + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ + * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. - * + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. + * + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, @@ -19,8 +22,8 @@ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1982, 1986, 1993 @@ -67,76 +70,80 @@ * Per RFC793, September, 1981. */ -#define TCP_NSTATES 11 +#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 */ +#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 */ +#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 */ +#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_FIN_WAIT_2 9 /* have closed, fin is acked */ +#define TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */ /* for KAME src sync over BSD*'s */ -#define TCP6_NSTATES TCP_NSTATES -#define TCP6S_CLOSED TCPS_CLOSED -#define TCP6S_LISTEN TCPS_LISTEN -#define TCP6S_SYN_SENT TCPS_SYN_SENT -#define TCP6S_SYN_RECEIVED TCPS_SYN_RECEIVED -#define TCP6S_ESTABLISHED TCPS_ESTABLISHED -#define TCP6S_CLOSE_WAIT TCPS_CLOSE_WAIT -#define TCP6S_FIN_WAIT_1 TCPS_FIN_WAIT_1 -#define TCP6S_CLOSING TCPS_CLOSING -#define TCP6S_LAST_ACK TCPS_LAST_ACK -#define TCP6S_FIN_WAIT_2 TCPS_FIN_WAIT_2 -#define TCP6S_TIME_WAIT TCPS_TIME_WAIT +#define TCP6_NSTATES TCP_NSTATES +#define TCP6S_CLOSED TCPS_CLOSED +#define TCP6S_LISTEN TCPS_LISTEN +#define TCP6S_SYN_SENT TCPS_SYN_SENT +#define TCP6S_SYN_RECEIVED TCPS_SYN_RECEIVED +#define TCP6S_ESTABLISHED TCPS_ESTABLISHED +#define TCP6S_CLOSE_WAIT TCPS_CLOSE_WAIT +#define TCP6S_FIN_WAIT_1 TCPS_FIN_WAIT_1 +#define TCP6S_CLOSING TCPS_CLOSING +#define TCP6S_LAST_ACK TCPS_LAST_ACK +#define TCP6S_FIN_WAIT_2 TCPS_FIN_WAIT_2 +#define TCP6S_TIME_WAIT TCPS_TIME_WAIT -#define TCPS_HAVERCVDSYN(s) ((s) >= TCPS_SYN_RECEIVED) -#define TCPS_HAVEESTABLISHED(s) ((s) >= TCPS_ESTABLISHED) -#define TCPS_HAVERCVDFIN(s) ((s) >= TCPS_TIME_WAIT) +#define TCPS_HAVERCVDSYN(s) ((s) >= TCPS_SYN_RECEIVED) +#define TCPS_HAVEESTABLISHED(s) ((s) >= TCPS_ESTABLISHED) +#define TCPS_HAVERCVDFIN(s) ((s) >= TCPS_TIME_WAIT) +#define TCPS_HAVERCVDFIN2(s) ((s) == TCPS_CLOSE_WAIT || \ + (s) == TCPS_CLOSING || \ + (s) == TCPS_LAST_ACK || \ + (s) == TCPS_TIME_WAIT) -#ifdef __APPLE_API_UNSTABLE -#ifdef TCPOUTFLAGS +#ifdef KERNEL_PRIVATE +#ifdef TCPOUTFLAGS /* * Flags used when sending segments in tcp_output. * Basic flags (TH_RST,TH_ACK,TH_SYN,TH_FIN) are totally * determined by state, with the proviso that TH_FIN is sent only * if all data queued for output is included in the segment. */ -static u_char tcp_outflags[TCP_NSTATES] = { - TH_RST|TH_ACK, /* 0, CLOSED */ - 0, /* 1, LISTEN */ - TH_SYN, /* 2, SYN_SENT */ - TH_SYN|TH_ACK, /* 3, SYN_RECEIVED */ - TH_ACK, /* 4, ESTABLISHED */ - TH_ACK, /* 5, CLOSE_WAIT */ - TH_FIN|TH_ACK, /* 6, FIN_WAIT_1 */ - TH_FIN|TH_ACK, /* 7, CLOSING */ - TH_FIN|TH_ACK, /* 8, LAST_ACK */ - TH_ACK, /* 9, FIN_WAIT_2 */ - TH_ACK, /* 10, TIME_WAIT */ -}; +static u_char tcp_outflags[TCP_NSTATES] = { + TH_RST | TH_ACK, /* 0, CLOSED */ + 0, /* 1, LISTEN */ + TH_SYN, /* 2, SYN_SENT */ + TH_SYN | TH_ACK, /* 3, SYN_RECEIVED */ + TH_ACK, /* 4, ESTABLISHED */ + TH_ACK, /* 5, CLOSE_WAIT */ + TH_FIN | TH_ACK, /* 6, FIN_WAIT_1 */ + TH_FIN | TH_ACK, /* 7, CLOSING */ + TH_FIN | TH_ACK, /* 8, LAST_ACK */ + TH_ACK, /* 9, FIN_WAIT_2 */ + TH_ACK, /* 10, TIME_WAIT */ +}; #endif -#endif /* __APPLE_API_UNSTABLE */ +#endif /* KERNEL_PRIVATE */ #if KPROF -#ifdef __APPLE_API_PRIVATE -int tcp_acounts[TCP_NSTATES][PRU_NREQ]; -#endif /* __APPLE_API_PRIVATE */ +#ifdef KERNEL_PRIVATE +int tcp_acounts[TCP_NSTATES][PRU_NREQ]; +#endif /* KERNEL_PRIVATE */ #endif -#ifdef TCPSTATES +#ifdef TCPSTATES char *tcpstates[] = { - "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", - "ESTABLISHED", "CLOSE_WAIT", "FIN_WAIT_1", "CLOSING", - "LAST_ACK", "FIN_WAIT_2", "TIME_WAIT", + "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", + "ESTABLISHED", "CLOSE_WAIT", "FIN_WAIT_1", "CLOSING", + "LAST_ACK", "FIN_WAIT_2", "TIME_WAIT" }; #endif