uipc_debug.c

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    1 /*-
    2  * Copyright (c) 2007 Robert N. M. Watson
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 /*
   28  * Debugger routines relating to sockets, protocols, etc, for use in DDB.
   29  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD$");
   33 
   34 #include "opt_ddb.h"
   35 
   36 #include <sys/param.h>
   37 #include <sys/domain.h>
   38 #include <sys/kernel.h>
   39 #include <sys/protosw.h>
   40 #include <sys/socket.h>
   41 #include <sys/socketvar.h>
   42 
   43 #ifdef DDB
   44 #include <ddb/ddb.h>
   45 
   46 static void
   47 db_print_sotype(short so_type)
   48 {
   49 
   50         switch (so_type) {
   51         case SOCK_STREAM:
   52                 db_printf("SOCK_STREAM");
   53                 break;
   54 
   55         case SOCK_DGRAM:
   56                 db_printf("SOCK_DGRAM");
   57                 break;
   58 
   59         case SOCK_RAW:
   60                 db_printf("SOCK_RAW");
   61                 break;
   62 
   63         case SOCK_RDM:
   64                 db_printf("SOCK_RDM");
   65                 break;
   66 
   67         case SOCK_SEQPACKET:
   68                 db_printf("SOCK_SEQPACKET");
   69                 break;
   70 
   71         default:
   72                 db_printf("unknown");
   73                 break;
   74         }
   75 }
   76 
   77 static void
   78 db_print_sooptions(short so_options)
   79 {
   80         int comma;
   81 
   82         comma = 0;
   83         if (so_options & SO_DEBUG) {
   84                 db_printf("%sSO_DEBUG", comma ? ", " : "");
   85                 comma = 1;
   86         }
   87         if (so_options & SO_ACCEPTCONN) {
   88                 db_printf("%sSO_ACCEPTCONN", comma ? ", " : "");
   89                 comma = 1;
   90         }
   91         if (so_options & SO_REUSEADDR) {
   92                 db_printf("%sSO_REUSEADDR", comma ? ", " : "");
   93                 comma = 1;
   94         }
   95         if (so_options & SO_KEEPALIVE) {
   96                 db_printf("%sSO_KEEPALIVE", comma ? ", " : "");
   97                 comma = 1;
   98         }
   99         if (so_options & SO_DONTROUTE) {
  100                 db_printf("%sSO_DONTROUTE", comma ? ", " : "");
  101                 comma = 1;
  102         }
  103         if (so_options & SO_BROADCAST) {
  104                 db_printf("%sSO_BROADCAST", comma ? ", " : "");
  105                 comma = 1;
  106         }
  107         if (so_options & SO_USELOOPBACK) {
  108                 db_printf("%sSO_USELOOPBACK", comma ? ", " : "");
  109                 comma = 1;
  110         }
  111         if (so_options & SO_LINGER) {
  112                 db_printf("%sSO_LINGER", comma ? ", " : "");
  113                 comma = 1;
  114         }
  115         if (so_options & SO_OOBINLINE) {
  116                 db_printf("%sSO_OOBINLINE", comma ? ", " : "");
  117                 comma = 1;
  118         }
  119         if (so_options & SO_REUSEPORT) {
  120                 db_printf("%sSO_REUSEPORT", comma ? ", " : "");
  121                 comma = 1;
  122         }
  123         if (so_options & SO_TIMESTAMP) {
  124                 db_printf("%sSO_TIMESTAMP", comma ? ", " : "");
  125                 comma = 1;
  126         }
  127         if (so_options & SO_NOSIGPIPE) {
  128                 db_printf("%sSO_NOSIGPIPE", comma ? ", " : "");
  129                 comma = 1;
  130         }
  131         if (so_options & SO_ACCEPTFILTER) {
  132                 db_printf("%sSO_ACCEPTFILTER", comma ? ", " : "");
  133                 comma = 1;
  134         }
  135         if (so_options & SO_BINTIME) {
  136                 db_printf("%sSO_BINTIME", comma ? ", " : "");
  137                 comma = 1;
  138         }
  139         if (so_options & SO_NO_OFFLOAD) {
  140                 db_printf("%sSO_NO_OFFLOAD", comma ? ", " : "");
  141                 comma = 1;
  142         }
  143         if (so_options & SO_NO_DDP) {
  144                 db_printf("%sSO_NO_DDP", comma ? ", " : "");
  145                 comma = 1;
  146         }
  147 }
  148 
  149 static void
  150 db_print_sostate(short so_state)
  151 {
  152         int comma;
  153 
  154         comma = 0;
  155         if (so_state & SS_NOFDREF) {
  156                 db_printf("%sSS_NOFDREF", comma ? ", " : "");
  157                 comma = 1;
  158         }
  159         if (so_state & SS_ISCONNECTED) {
  160                 db_printf("%sSS_ISCONNECTED", comma ? ", " : "");
  161                 comma = 1;
  162         }
  163         if (so_state & SS_ISCONNECTING) {
  164                 db_printf("%sSS_ISCONNECTING", comma ? ", " : "");
  165                 comma = 1;
  166         }
  167         if (so_state & SS_ISDISCONNECTING) {
  168                 db_printf("%sSS_ISDISCONNECTING", comma ? ", " : "");
  169                 comma = 1;
  170         }
  171         if (so_state & SS_NBIO) {
  172                 db_printf("%sSS_NBIO", comma ? ", " : "");
  173                 comma = 1;
  174         }
  175         if (so_state & SS_ASYNC) {
  176                 db_printf("%sSS_ASYNC", comma ? ", " : "");
  177                 comma = 1;
  178         }
  179         if (so_state & SS_ISCONFIRMING) {
  180                 db_printf("%sSS_ISCONFIRMING", comma ? ", " : "");
  181                 comma = 1;
  182         }
  183         if (so_state & SS_PROTOREF) {
  184                 db_printf("%sSS_PROTOREF", comma ? ", " : "");
  185                 comma = 1;
  186         }
  187 }
  188 
  189 static void
  190 db_print_soqstate(int so_qstate)
  191 {
  192         int comma;
  193 
  194         comma = 0;
  195         if (so_qstate & SQ_INCOMP) {
  196                 db_printf("%sSQ_INCOMP", comma ? ", " : "");
  197                 comma = 1;
  198         }
  199         if (so_qstate & SQ_COMP) {
  200                 db_printf("%sSQ_COMP", comma ? ", " : "");
  201                 comma = 1;
  202         }
  203 }
  204 
  205 static void
  206 db_print_sbstate(short sb_state)
  207 {
  208         int comma;
  209 
  210         comma = 0;
  211         if (sb_state & SBS_CANTSENDMORE) {
  212                 db_printf("%sSBS_CANTSENDMORE", comma ? ", " : "");
  213                 comma = 1;
  214         }
  215         if (sb_state & SBS_CANTRCVMORE) {
  216                 db_printf("%sSBS_CANTRCVMORE", comma ? ", " : "");
  217                 comma = 1;
  218         }
  219         if (sb_state & SBS_RCVATMARK) {
  220                 db_printf("%sSBS_RCVATMARK", comma ? ", " : "");
  221                 comma = 1;
  222         }
  223 }
  224 
  225 static void
  226 db_print_indent(int indent)
  227 {
  228         int i;
  229 
  230         for (i = 0; i < indent; i++)
  231                 db_printf(" ");
  232 }
  233 
  234 static void
  235 db_print_domain(struct domain *d, const char *domain_name, int indent)
  236 {
  237 
  238         db_print_indent(indent);
  239         db_printf("%s at %p\n", domain_name, d);
  240 
  241         indent += 2;
  242 
  243         db_print_indent(indent);
  244         db_printf("dom_family: %d   ", d->dom_family);
  245         db_printf("dom_name: %s\n", d->dom_name);
  246 
  247         db_print_indent(indent);
  248         db_printf("dom_init: %p   ", d->dom_init);
  249         db_printf("dom_externalize: %p   ", d->dom_externalize);
  250         db_printf("dom_dispose: %p\n", d->dom_dispose);
  251 
  252         db_print_indent(indent);
  253         db_printf("dom_protosw: %p   ", d->dom_protosw);
  254         db_printf("dom_next: %p\n", d->dom_next);
  255 
  256         db_print_indent(indent);
  257         db_printf("dom_rtattach: %p   ", d->dom_rtattach);
  258 
  259         db_print_indent(indent);
  260         db_printf("dom_ifattach: %p   ", d->dom_ifattach);
  261         db_printf("dom_ifdetach: %p\n", d->dom_ifdetach);
  262 }
  263 
  264 static void
  265 db_print_prflags(short pr_flags)
  266 {
  267         int comma;
  268 
  269         comma = 0;
  270         if (pr_flags & PR_ATOMIC) {
  271                 db_printf("%sPR_ATOMIC", comma ? ", " : "");
  272                 comma = 1;
  273         }
  274         if (pr_flags & PR_ADDR) {
  275                 db_printf("%sPR_ADDR", comma ? ", " : "");
  276                 comma = 1;
  277         }
  278         if (pr_flags & PR_CONNREQUIRED) {
  279                 db_printf("%sPR_CONNREQUIRED", comma ? ", " : "");
  280                 comma = 1;
  281         }
  282         if (pr_flags & PR_WANTRCVD) {
  283                 db_printf("%sPR_WANTRCVD", comma ? ", " : "");
  284                 comma = 1;
  285         }
  286         if (pr_flags & PR_RIGHTS) {
  287                 db_printf("%sPR_RIGHTS", comma ? ", " : "");
  288                 comma = 1;
  289         }
  290         if (pr_flags & PR_IMPLOPCL) {
  291                 db_printf("%sPR_IMPLOPCL", comma ? ", " : "");
  292                 comma = 1;
  293         }
  294         if (pr_flags & PR_LASTHDR) {
  295                 db_printf("%sPR_LASTHDR", comma ? ", " : "");
  296                 comma = 1;
  297         }
  298 }
  299 
  300 static void
  301 db_print_protosw(struct protosw *pr, const char *prname, int indent)
  302 {
  303 
  304         db_print_indent(indent);
  305         db_printf("%s at %p\n", prname, pr);
  306 
  307         indent += 2;
  308 
  309         db_print_indent(indent);
  310         db_printf("pr_type: %d   ", pr->pr_type);
  311         db_printf("pr_domain: %p\n", pr->pr_domain);
  312         if (pr->pr_domain != NULL)
  313                 db_print_domain(pr->pr_domain, "pr_domain", indent);
  314 
  315         db_print_indent(indent);
  316         db_printf("pr_protocol: %d\n", pr->pr_protocol);
  317 
  318         db_print_indent(indent);
  319         db_printf("pr_flags: %d (", pr->pr_flags);
  320         db_print_prflags(pr->pr_flags);
  321         db_printf(")\n");
  322 
  323         db_print_indent(indent);
  324         db_printf("pr_input: %p   ", pr->pr_input);
  325         db_printf("pr_output: %p   ", pr->pr_output);
  326         db_printf("pr_ctlinput: %p\n", pr->pr_ctlinput);
  327 
  328         db_print_indent(indent);
  329         db_printf("pr_ctloutput: %p   ", pr->pr_ctloutput);
  330         db_printf("pr_init: %p\n", pr->pr_init);
  331 
  332         db_print_indent(indent);
  333         db_printf("pr_fasttimo: %p   ", pr->pr_fasttimo);
  334         db_printf("pr_slowtimo: %p   ", pr->pr_slowtimo);
  335         db_printf("pr_drain: %p\n", pr->pr_drain);
  336 
  337         db_print_indent(indent);
  338 }
  339 
  340 static void
  341 db_print_sbflags(short sb_flags)
  342 {
  343         int comma;
  344 
  345         comma = 0;
  346         if (sb_flags & SB_WAIT) {
  347                 db_printf("%sSB_WAIT", comma ? ", " : "");
  348                 comma = 1;
  349         }
  350         if (sb_flags & SB_SEL) {
  351                 db_printf("%sSB_SEL", comma ? ", " : "");
  352                 comma = 1;
  353         }
  354         if (sb_flags & SB_ASYNC) {
  355                 db_printf("%sSB_ASYNC", comma ? ", " : "");
  356                 comma = 1;
  357         }
  358         if (sb_flags & SB_UPCALL) {
  359                 db_printf("%sSB_UPCALL", comma ? ", " : "");
  360                 comma = 1;
  361         }
  362         if (sb_flags & SB_NOINTR) {
  363                 db_printf("%sSB_NOINTR", comma ? ", " : "");
  364                 comma = 1;
  365         }
  366         if (sb_flags & SB_AIO) {
  367                 db_printf("%sSB_AIO", comma ? ", " : "");
  368                 comma = 1;
  369         }
  370         if (sb_flags & SB_KNOTE) {
  371                 db_printf("%sSB_KNOTE", comma ? ", " : "");
  372                 comma = 1;
  373         }
  374         if (sb_flags & SB_AUTOSIZE) {
  375                 db_printf("%sSB_AUTOSIZE", comma ? ", " : "");
  376                 comma = 1;
  377         }
  378 }
  379 
  380 static void
  381 db_print_sockbuf(struct sockbuf *sb, const char *sockbufname, int indent)
  382 {
  383 
  384         db_print_indent(indent);
  385         db_printf("%s at %p\n", sockbufname, sb);
  386 
  387         indent += 2;
  388 
  389         db_print_indent(indent);
  390         db_printf("sb_state: 0x%x (", sb->sb_state);
  391         db_print_sbstate(sb->sb_state);
  392         db_printf(")\n");
  393 
  394         db_print_indent(indent);
  395         db_printf("sb_mb: %p   ", sb->sb_mb);
  396         db_printf("sb_mbtail: %p   ", sb->sb_mbtail);
  397         db_printf("sb_lastrecord: %p\n", sb->sb_lastrecord);
  398 
  399         db_print_indent(indent);
  400         db_printf("sb_sndptr: %p   ", sb->sb_sndptr);
  401         db_printf("sb_sndptroff: %u\n", sb->sb_sndptroff);
  402 
  403         db_print_indent(indent);
  404         db_printf("sb_acc: %u   ", sb->sb_acc);
  405         db_printf("sb_ccc: %u   ", sb->sb_ccc);
  406         db_printf("sb_hiwat: %u   ", sb->sb_hiwat);
  407         db_printf("sb_mbcnt: %u   ", sb->sb_mbcnt);
  408         db_printf("sb_mbmax: %u\n", sb->sb_mbmax);
  409 
  410         db_print_indent(indent);
  411         db_printf("sb_ctl: %u   ", sb->sb_ctl);
  412         db_printf("sb_lowat: %d   ", sb->sb_lowat);
  413         db_printf("sb_timeo: %jd\n", sb->sb_timeo);
  414 
  415         db_print_indent(indent);
  416         db_printf("sb_flags: 0x%x (", sb->sb_flags);
  417         db_print_sbflags(sb->sb_flags);
  418         db_printf(")\n");
  419 
  420         db_print_indent(indent);
  421         db_printf("sb_aiojobq first: %p\n", TAILQ_FIRST(&sb->sb_aiojobq));
  422 }
  423 
  424 static void
  425 db_print_socket(struct socket *so, const char *socketname, int indent)
  426 {
  427 
  428         db_print_indent(indent);
  429         db_printf("%s at %p\n", socketname, so);
  430 
  431         indent += 2;
  432 
  433         db_print_indent(indent);
  434         db_printf("so_count: %d   ", so->so_count);
  435         db_printf("so_type: %d (", so->so_type);
  436         db_print_sotype(so->so_type);
  437         db_printf(")\n");
  438 
  439         db_print_indent(indent);
  440         db_printf("so_options: 0x%x (", so->so_options);
  441         db_print_sooptions(so->so_options);
  442         db_printf(")\n");
  443 
  444         db_print_indent(indent);
  445         db_printf("so_linger: %d   ", so->so_linger);
  446         db_printf("so_state: 0x%x (", so->so_state);
  447         db_print_sostate(so->so_state);
  448         db_printf(")\n");
  449 
  450         db_print_indent(indent);
  451         db_printf("so_qstate: 0x%x (", so->so_qstate);
  452         db_print_soqstate(so->so_qstate);
  453         db_printf(")   ");
  454         db_printf("so_pcb: %p   ", so->so_pcb);
  455         db_printf("so_proto: %p\n", so->so_proto);
  456 
  457         if (so->so_proto != NULL)
  458                 db_print_protosw(so->so_proto, "so_proto", indent);
  459 
  460         db_print_indent(indent);
  461         db_printf("so_head: %p   ", so->so_head);
  462         db_printf("so_incomp first: %p   ", TAILQ_FIRST(&so->so_incomp));
  463         db_printf("so_comp first: %p\n", TAILQ_FIRST(&so->so_comp));
  464 
  465         db_print_indent(indent);
  466         /* so_list skipped */
  467         db_printf("so_qlen: %u   ", so->so_qlen);
  468         db_printf("so_incqlen: %u   ", so->so_incqlen);
  469         db_printf("so_qlimit: %u   ", so->so_qlimit);
  470         db_printf("so_timeo: %d   ", so->so_timeo);
  471         db_printf("so_error: %d\n", so->so_error);
  472 
  473         db_print_indent(indent);
  474         db_printf("so_sigio: %p   ", so->so_sigio);
  475         db_printf("so_oobmark: %lu   ", so->so_oobmark);
  476 
  477         db_print_sockbuf(&so->so_rcv, "so_rcv", indent);
  478         db_print_sockbuf(&so->so_snd, "so_snd", indent);
  479 }
  480 
  481 DB_SHOW_COMMAND(socket, db_show_socket)
  482 {
  483         struct socket *so;
  484 
  485         if (!have_addr) {
  486                 db_printf("usage: show socket <addr>\n");
  487                 return;
  488         }
  489         so = (struct socket *)addr;
  490 
  491         db_print_socket(so, "socket", 0);
  492 }
  493 
  494 DB_SHOW_COMMAND(sockbuf, db_show_sockbuf)
  495 {
  496         struct sockbuf *sb;
  497 
  498         if (!have_addr) {
  499                 db_printf("usage: show sockbuf <addr>\n");
  500                 return;
  501         }
  502         sb = (struct sockbuf *)addr;
  503 
  504         db_print_sockbuf(sb, "sockbuf", 0);
  505 }
  506 
  507 DB_SHOW_COMMAND(protosw, db_show_protosw)
  508 {
  509         struct protosw *pr;
  510 
  511         if (!have_addr) {
  512                 db_printf("usage: show protosw <addr>\n");
  513                 return;
  514         }
  515         pr = (struct protosw *)addr;
  516 
  517         db_print_protosw(pr, "protosw", 0);
  518 }
  519 
  520 DB_SHOW_COMMAND(domain, db_show_domain)
  521 {
  522         struct domain *d;
  523 
  524         if (!have_addr) {
  525                 db_printf("usage: show protosw <addr>\n");
  526                 return;
  527         }
  528         d = (struct domain *)addr;
  529 
  530         db_print_domain(d, "domain", 0);
  531 }
  532 #endif
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FreeBSD/Linux Kernel Cross Reference sys/kern/uipc_debug.c

FreeBSD/Linux Kernel Cross Reference
sys/kern/uipc_debug.c
