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Annotation of XNU/bsd/netns/spp_debug.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * Copyright (c) 1984, 1985, 1986, 1987, 1993
        !            24:  *     The Regents of the University of California.  All rights reserved.
        !            25:  *
        !            26:  * Redistribution and use in source and binary forms, with or without
        !            27:  * modification, are permitted provided that the following conditions
        !            28:  * are met:
        !            29:  * 1. Redistributions of source code must retain the above copyright
        !            30:  *    notice, this list of conditions and the following disclaimer.
        !            31:  * 2. Redistributions in binary form must reproduce the above copyright
        !            32:  *    notice, this list of conditions and the following disclaimer in the
        !            33:  *    documentation and/or other materials provided with the distribution.
        !            34:  * 3. All advertising materials mentioning features or use of this software
        !            35:  *    must display the following acknowledgement:
        !            36:  *     This product includes software developed by the University of
        !            37:  *     California, Berkeley and its contributors.
        !            38:  * 4. Neither the name of the University nor the names of its contributors
        !            39:  *    may be used to endorse or promote products derived from this software
        !            40:  *    without specific prior written permission.
        !            41:  *
        !            42:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            43:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            44:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            45:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            46:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            47:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            48:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            49:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            50:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            51:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            52:  * SUCH DAMAGE.
        !            53:  *
        !            54:  *     @(#)spp_debug.c 8.1 (Berkeley) 6/10/93
        !            55:  */
        !            56: 
        !            57: #include <sys/param.h>
        !            58: #include <sys/systm.h>
        !            59: #include <sys/mbuf.h>
        !            60: #include <sys/socket.h>
        !            61: #include <sys/socketvar.h>
        !            62: #include <sys/protosw.h>
        !            63: #include <sys/errno.h>
        !            64: 
        !            65: #include <net/route.h>
        !            66: #include <net/if.h>
        !            67: #include <netinet/tcp_fsm.h>
        !            68: 
        !            69: #include <netns/ns.h>
        !            70: #include <netns/ns_pcb.h>
        !            71: #include <netns/idp.h>
        !            72: #include <netns/idp_var.h>
        !            73: #include <netns/sp.h>
        !            74: #include <netns/spidp.h>
        !            75: #define SPPTIMERS
        !            76: #include <netns/spp_timer.h>
        !            77: #include <netns/spp_var.h>
        !            78: #define        SANAMES
        !            79: #include <netns/spp_debug.h>
        !            80: 
        !            81: int    sppconsdebug = 0;
        !            82: /*
        !            83:  * spp debug routines
        !            84:  */
        !            85: spp_trace(act, ostate, sp, si, req)
        !            86:        short act;
        !            87:        u_char ostate;
        !            88:        struct sppcb *sp;
        !            89:        struct spidp *si;
        !            90:        int req;
        !            91: {
        !            92: #ifdef INET
        !            93: #ifdef TCPDEBUG
        !            94:        u_short seq, ack, len, alo;
        !            95:        unsigned long iptime();
        !            96:        int flags;
        !            97:        struct spp_debug *sd = &spp_debug[spp_debx++];
        !            98:        extern char *prurequests[];
        !            99:        extern char *sanames[];
        !           100:        extern char *tcpstates[];
        !           101:        extern char *spptimers[];
        !           102: 
        !           103:        if (spp_debx == SPP_NDEBUG)
        !           104:                spp_debx = 0;
        !           105:        sd->sd_time = iptime();
        !           106:        sd->sd_act = act;
        !           107:        sd->sd_ostate = ostate;
        !           108:        sd->sd_cb = (caddr_t)sp;
        !           109:        if (sp)
        !           110:                sd->sd_sp = *sp;
        !           111:        else
        !           112:                bzero((caddr_t)&sd->sd_sp, sizeof (*sp));
        !           113:        if (si)
        !           114:                sd->sd_si = *si;
        !           115:        else
        !           116:                bzero((caddr_t)&sd->sd_si, sizeof (*si));
        !           117:        sd->sd_req = req;
        !           118:        if (sppconsdebug == 0)
        !           119:                return;
        !           120:        if (ostate >= TCP_NSTATES) ostate = 0;
        !           121:        if (act >= SA_DROP) act = SA_DROP;
        !           122:        if (sp)
        !           123:                printf("%x %s:", sp, tcpstates[ostate]);
        !           124:        else
        !           125:                printf("???????? ");
        !           126:        printf("%s ", sanames[act]);
        !           127:        switch (act) {
        !           128: 
        !           129:        case SA_RESPOND:
        !           130:        case SA_INPUT:
        !           131:        case SA_OUTPUT:
        !           132:        case SA_DROP:
        !           133:                if (si == 0)
        !           134:                        break;
        !           135:                seq = si->si_seq;
        !           136:                ack = si->si_ack;
        !           137:                alo = si->si_alo;
        !           138:                len = si->si_len;
        !           139:                if (act == SA_OUTPUT) {
        !           140:                        seq = ntohs(seq);
        !           141:                        ack = ntohs(ack);
        !           142:                        alo = ntohs(alo);
        !           143:                        len = ntohs(len);
        !           144:                }
        !           145: #ifndef lint
        !           146: #define p1(f)  { printf("%s = %x, ", "f", f); }
        !           147:                p1(seq); p1(ack); p1(alo); p1(len);
        !           148: #endif
        !           149:                flags = si->si_cc;
        !           150:                if (flags) {
        !           151:                        char *cp = "<";
        !           152: #ifndef lint
        !           153: #define pf(f) { if (flags&SP_/**/f) { printf("%s%s", cp, "f"); cp = ","; } }
        !           154:                        pf(SP); pf(SA); pf(OB); pf(EM);
        !           155: #else
        !           156:                        cp = cp;
        !           157: #endif
        !           158:                        printf(">");
        !           159:                }
        !           160: #ifndef lint
        !           161: #define p2(f)  { printf("%s = %x, ", "f", si->si_/**/f); }
        !           162:                p2(sid);p2(did);p2(dt);p2(pt);
        !           163: #endif
        !           164:                ns_printhost(&si->si_sna);
        !           165:                ns_printhost(&si->si_dna);
        !           166: 
        !           167:                if (act==SA_RESPOND) {
        !           168:                        printf("idp_len = %x, ",
        !           169:                                ((struct idp *)si)->idp_len);
        !           170:                }
        !           171:                break;
        !           172: 
        !           173:        case SA_USER:
        !           174:                printf("%s", prurequests[req&0xff]);
        !           175:                if ((req & 0xff) == PRU_SLOWTIMO)
        !           176:                        printf("<%s>", spptimers[req>>8]);
        !           177:                break;
        !           178:        }
        !           179:        if (sp)
        !           180:                printf(" -> %s", tcpstates[sp->s_state]);
        !           181:        /* print out internal state of sp !?! */
        !           182:        printf("\n");
        !           183:        if (sp == 0)
        !           184:                return;
        !           185: #ifndef lint
        !           186: #define p3(f)  { printf("%s = %x, ", "f", sp->s_/**/f); }
        !           187:        printf("\t"); p3(rack);p3(ralo);p3(smax);p3(flags); printf("\n");
        !           188: #endif
        !           189: #endif
        !           190: #endif
        !           191: }

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