X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..refs/heads/master:/bsd/netinet/tcp_debug.c diff --git a/bsd/netinet/tcp_debug.c b/bsd/netinet/tcp_debug.c index 8eef1d998..801897108 100644 --- a/bsd/netinet/tcp_debug.c +++ b/bsd/netinet/tcp_debug.c @@ -1,23 +1,29 @@ /* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. - * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * @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. 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, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * 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_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1982, 1986, 1993 @@ -52,12 +58,9 @@ * SUCH DAMAGE. * * @(#)tcp_debug.c 8.1 (Berkeley) 6/10/93 + * $FreeBSD: src/sys/netinet/tcp_debug.c,v 1.16.2.1 2000/07/15 07:14:31 kris Exp $ */ -#if ISFB31 -#include "opt_inet.h" -#include "opt_tcpdebug.h" -#endif #ifndef INET #error The option TCPDEBUG requires option INET. @@ -67,13 +70,15 @@ /* load symbolic names */ #define PRUREQUESTS #define TCPSTATES -#define TCPTIMERS -#define TANAMES +#define TCPTIMERS +#define TANAMES #endif #include #include #include +#include +#include #include #include @@ -88,109 +93,131 @@ #include #if TCPDEBUG -static int tcpconsdebug = 0; +__private_extern__ int tcpconsdebug = 0; +SYSCTL_INT(_net_inet_tcp, OID_AUTO, tcpconsdebug, CTLFLAG_RW | CTLFLAG_LOCKED, + &tcpconsdebug, 0, "Turn tcp debugging on or off"); #endif static struct tcp_debug tcp_debug[TCP_NDEBUG]; -static int tcp_debx; +static int tcp_debx; /* * Tcp debug routines */ void -tcp_trace(act, ostate, tp, ip, th, req) - short act, ostate; - struct tcpcb *tp; -#if INET6 - void *ip; -#else - struct ip *ip; -#endif - struct tcphdr *th; - int req; +tcp_trace(act, ostate, tp, ipgen, th, req) +short act, ostate; +struct tcpcb *tp; +void *ipgen; +struct tcphdr *th; +int req; { -#if INET6 - int isipv6 = (ip != NULL && ((struct ip *)ip)->ip_v == 6) ? 1 : 0; -#endif /* INET6 */ + int isipv6; tcp_seq seq, ack; int len, flags; struct tcp_debug *td = &tcp_debug[tcp_debx++]; - if (tcp_debx == TCP_NDEBUG) + isipv6 = (ipgen != NULL && ((struct ip *)ipgen)->ip_v == 6) ? 1 : 0; + td->td_family = (isipv6 != 0) ? AF_INET6 : AF_INET; + if (tcp_debx == TCP_NDEBUG) { tcp_debx = 0; + } td->td_time = iptime(); td->td_act = act; td->td_ostate = ostate; td->td_tcb = (caddr_t)tp; - if (tp) + if (tp) { td->td_cb = *tp; - else - bzero((caddr_t)&td->td_cb, sizeof (*tp)); - if (ip) { -#if INET6 - if (isipv6) - td->td_ip6 = *(struct ip6_hdr *)ip; - else - td->td_ip = *(struct ip *)ip; -#else /* INET6 */ - td->td_ip = *ip; -#endif /* INET6 */ - } else -#if INET6 - bzero((caddr_t)&td->_td_ipx, sizeof (td->_td_ipx)); -#else /* INET6 */ - bzero((caddr_t)&td->td_ip, sizeof (*ip)); -#endif /* INET6 */ - if (th) - td->td_th = *th; - + } else { + bzero((caddr_t)&td->td_cb, sizeof(*tp)); + } + if (ipgen) { + switch (td->td_family) { + case AF_INET: + bcopy((caddr_t)ipgen, (caddr_t)&td->td_ti.ti_i, + sizeof(td->td_ti.ti_i)); + bzero((caddr_t)td->td_ip6buf, sizeof(td->td_ip6buf)); + break; + case AF_INET6: + bcopy((caddr_t)ipgen, (caddr_t)td->td_ip6buf, + sizeof(td->td_ip6buf)); + bzero((caddr_t)&td->td_ti.ti_i, + sizeof(td->td_ti.ti_i)); + break; + default: + bzero((caddr_t)td->td_ip6buf, sizeof(td->td_ip6buf)); + bzero((caddr_t)&td->td_ti.ti_i, + sizeof(td->td_ti.ti_i)); + break; + } + } else { + bzero((caddr_t)&td->td_ti.ti_i, sizeof(td->td_ti.ti_i)); + bzero((caddr_t)td->td_ip6buf, sizeof(td->td_ip6buf)); + } + if (th) { + switch (td->td_family) { + case AF_INET: + td->td_ti.ti_t = *th; + bzero((caddr_t)&td->td_ti6.th, sizeof(td->td_ti6.th)); + break; + case AF_INET6: + td->td_ti6.th = *th; + bzero((caddr_t)&td->td_ti.ti_t, + sizeof(td->td_ti.ti_t)); + break; + default: + bzero((caddr_t)&td->td_ti.ti_t, + sizeof(td->td_ti.ti_t)); + bzero((caddr_t)&td->td_ti6.th, sizeof(td->td_ti6.th)); + break; + } + } else { + bzero((caddr_t)&td->td_ti.ti_t, sizeof(td->td_ti.ti_t)); + bzero((caddr_t)&td->td_ti6.th, sizeof(td->td_ti6.th)); + } td->td_req = req; #if TCPDEBUG - if (tcpconsdebug == 0) + if (tcpconsdebug == 0) { return; - if (tp) - printf("%p %s:", tp, tcpstates[ostate]); - else + } + if (tp) { + printf("%x %s:", tp, tcpstates[ostate]); + } else { printf("???????? "); + } printf("%s ", tanames[act]); switch (act) { - case TA_INPUT: case TA_OUTPUT: case TA_DROP: - if (ip == 0) + if (ipgen == NULL || th == NULL) { break; -#if INET6 - if (isipv6) { - len = ((struct ip6_hdr *)ip)->ip6_plen; - } else { - len = ((struct ip *)ip)->ip_len; } -#else /* INET6 */ - len = ip->ip_len; -#endif /* INET6 */ seq = th->th_seq; ack = th->th_ack; + len = isipv6 ? ((struct ip6_hdr *)ipgen)->ip6_plen : ((struct ip *)ipgen)->ip_len; if (act == TA_OUTPUT) { seq = ntohl(seq); ack = ntohl(ack); len = ntohs((u_short)len); } - if (act == TA_OUTPUT) - len -= sizeof (struct tcphdr); - if (len) - printf("[%x..%x)", seq, seq+len); - else + if (act == TA_OUTPUT) { + len -= sizeof(struct tcphdr); + } + if (len) { + printf("[%x..%x)", seq, seq + len); + } else { printf("%x", seq); + } printf("@%x, urp=%x", ack, th->th_urp); flags = th->th_flags; if (flags) { char *cp = "<"; -#define pf(f) { \ - if (th->th_flags & TH_##f) { \ - printf("%s%s", cp, #f); \ - cp = ","; \ - } \ +#define pf(f) { \ + if (th->th_flags & TH_##f) { \ + printf("%s%s", cp, #f); \ + cp = ","; \ + } \ } pf(SYN); pf(ACK); pf(FIN); pf(RST); pf(PUSH); pf(URG); printf(">"); @@ -198,22 +225,25 @@ tcp_trace(act, ostate, tp, ip, th, req) break; case TA_USER: - printf("%s", prurequests[req&0xff]); - if ((req & 0xff) == PRU_SLOWTIMO) - printf("<%s>", tcptimers[req>>8]); + printf("%s", prurequests[req & 0xff]); + if ((req & 0xff) == PRU_SLOWTIMO) { + printf("<%s>", tcptimers[req >> 8]); + } break; } - if (tp) + if (tp) { printf(" -> %s", tcpstates[tp->t_state]); + } /* print out internal state of tp !?! */ printf("\n"); - if (tp == 0) + if (tp == 0) { return; + } printf( - "\trcv_(nxt,wnd,up) (%lx,%lx,%lx) snd_(una,nxt,max) (%lx,%lx,%lx)\n", - (u_long)tp->rcv_nxt, tp->rcv_wnd, (u_long)tp->rcv_up, - (u_long)tp->snd_una, (u_long)tp->snd_nxt, (u_long)tp->snd_max); + "\trcv_(nxt,wnd,up) (%lx,%lx,%lx) snd_(una,nxt,max) (%lx,%lx,%lx)\n", + (uint32_t)tp->rcv_nxt, tp->rcv_wnd, (uint32_t)tp->rcv_up, + (uint32_t)tp->snd_una, (uint32_t)tp->snd_nxt, (uint32_t)tp->snd_max); printf("\tsnd_(wl1,wl2,wnd) (%lx,%lx,%lx)\n", - (u_long)tp->snd_wl1, (u_long)tp->snd_wl2, tp->snd_wnd); + (uint32_t)tp->snd_wl1, (uint32_t)tp->snd_wl2, tp->snd_wnd); #endif /* TCPDEBUG */ }