The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/geom/geom_dump.c

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    1 /*-
    2  * Copyright (c) 2002 Poul-Henning Kamp
    3  * Copyright (c) 2002 Networks Associates Technology, Inc.
    4  * All rights reserved.
    5  *
    6  * This software was developed for the FreeBSD Project by Poul-Henning Kamp
    7  * and NAI Labs, the Security Research Division of Network Associates, Inc.
    8  * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
    9  * DARPA CHATS research program.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  * 3. The names of the authors may not be used to endorse or promote
   20  *    products derived from this software without specific prior written
   21  *    permission.
   22  *
   23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   33  * SUCH DAMAGE.
   34  */
   35 
   36 #include <sys/cdefs.h>
   37 __FBSDID("$FreeBSD: releng/8.0/sys/geom/geom_dump.c 152342 2005-11-12 20:02:02Z marcel $");
   38 
   39 #include <sys/param.h>
   40 #include <sys/sbuf.h>
   41 #include <sys/systm.h>
   42 #include <sys/malloc.h>
   43 #include <machine/stdarg.h>
   44 
   45 #include <geom/geom.h>
   46 #include <geom/geom_int.h>
   47 
   48 
   49 static void
   50 g_confdot_consumer(struct sbuf *sb, struct g_consumer *cp)
   51 {
   52 
   53         sbuf_printf(sb, "z%p [label=\"r%dw%de%d\"];\n",
   54             cp, cp->acr, cp->acw, cp->ace);
   55         if (cp->provider)
   56                 sbuf_printf(sb, "z%p -> z%p;\n", cp, cp->provider);
   57 }
   58 
   59 static void
   60 g_confdot_provider(struct sbuf *sb, struct g_provider *pp)
   61 {
   62 
   63         sbuf_printf(sb, "z%p [shape=hexagon,label=\"%s\\nr%dw%de%d\\nerr#%d\"];\n",
   64             pp, pp->name, pp->acr, pp->acw, pp->ace, pp->error);
   65 }
   66 
   67 static void
   68 g_confdot_geom(struct sbuf *sb, struct g_geom *gp)
   69 {
   70         struct g_consumer *cp;
   71         struct g_provider *pp;
   72 
   73         sbuf_printf(sb, "z%p [shape=box,label=\"%s\\n%s\\nr#%d\"];\n",
   74             gp, gp->class->name, gp->name, gp->rank);
   75         LIST_FOREACH(cp, &gp->consumer, consumer) {
   76                 g_confdot_consumer(sb, cp);
   77                 sbuf_printf(sb, "z%p -> z%p;\n", gp, cp);
   78         }
   79 
   80         LIST_FOREACH(pp, &gp->provider, provider) {
   81                 g_confdot_provider(sb, pp);
   82                 sbuf_printf(sb, "z%p -> z%p;\n", pp, gp);
   83         }
   84 }
   85 
   86 static void
   87 g_confdot_class(struct sbuf *sb, struct g_class *mp)
   88 {
   89         struct g_geom *gp;
   90 
   91         LIST_FOREACH(gp, &mp->geom, geom)
   92                 g_confdot_geom(sb, gp);
   93 }
   94 
   95 void
   96 g_confdot(void *p, int flag )
   97 {
   98         struct g_class *mp;
   99         struct sbuf *sb;
  100 
  101         KASSERT(flag != EV_CANCEL, ("g_confdot was cancelled"));
  102         sb = p;
  103         g_topology_assert();
  104         sbuf_printf(sb, "digraph geom {\n");
  105         LIST_FOREACH(mp, &g_classes, class)
  106                 g_confdot_class(sb, mp);
  107         sbuf_printf(sb, "};\n");
  108         sbuf_finish(sb);
  109 }
  110 
  111 static void
  112 g_conftxt_geom(struct sbuf *sb, struct g_geom *gp, int level)
  113 {
  114         struct g_provider *pp;
  115         struct g_consumer *cp;
  116 
  117         if (gp->flags & G_GEOM_WITHER)
  118                 return;
  119         LIST_FOREACH(pp, &gp->provider, provider) {
  120                 sbuf_printf(sb, "%d %s %s %ju %u", level, gp->class->name,
  121                     pp->name, (uintmax_t)pp->mediasize, pp->sectorsize);
  122                 if (gp->dumpconf != NULL)
  123                         gp->dumpconf(sb, NULL, gp, NULL, pp);
  124                 sbuf_printf(sb, "\n");
  125                 LIST_FOREACH(cp, &pp->consumers, consumers)
  126                         g_conftxt_geom(sb, cp->geom, level + 1);
  127         }
  128 }
  129 
  130 static void
  131 g_conftxt_class(struct sbuf *sb, struct g_class *mp)
  132 {
  133         struct g_geom *gp;
  134 
  135         LIST_FOREACH(gp, &mp->geom, geom)
  136                 g_conftxt_geom(sb, gp, 0);
  137 }
  138 
  139 void
  140 g_conftxt(void *p, int flag)
  141 {
  142         struct g_class *mp;
  143         struct sbuf *sb;
  144 
  145         KASSERT(flag != EV_CANCEL, ("g_conftxt was cancelled"));
  146         sb = p;
  147         g_topology_assert();
  148         LIST_FOREACH(mp, &g_classes, class) {
  149                 if (!strcmp(mp->name, "DISK") || !strcmp(mp->name, "MD"))
  150                         g_conftxt_class(sb, mp);
  151         }
  152         sbuf_finish(sb);
  153 }
  154 
  155 
  156 static void
  157 g_conf_consumer(struct sbuf *sb, struct g_consumer *cp)
  158 {
  159 
  160         sbuf_printf(sb, "\t<consumer id=\"%p\">\n", cp);
  161         sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", cp->geom);
  162         if (cp->provider != NULL)
  163                 sbuf_printf(sb, "\t  <provider ref=\"%p\"/>\n", cp->provider);
  164         sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
  165             cp->acr, cp->acw, cp->ace);
  166         if (cp->geom->flags & G_GEOM_WITHER)
  167                 ;
  168         else if (cp->geom->dumpconf != NULL) {
  169                 sbuf_printf(sb, "\t  <config>\n");
  170                 cp->geom->dumpconf(sb, "\t    ", cp->geom, cp, NULL);
  171                 sbuf_printf(sb, "\t  </config>\n");
  172         }
  173         sbuf_printf(sb, "\t</consumer>\n");
  174 }
  175 
  176 static void
  177 g_conf_provider(struct sbuf *sb, struct g_provider *pp)
  178 {
  179 
  180         sbuf_printf(sb, "\t<provider id=\"%p\">\n", pp);
  181         sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", pp->geom);
  182         sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
  183             pp->acr, pp->acw, pp->ace);
  184         sbuf_printf(sb, "\t  <name>%s</name>\n", pp->name);
  185         sbuf_printf(sb, "\t  <mediasize>%jd</mediasize>\n",
  186             (intmax_t)pp->mediasize);
  187         sbuf_printf(sb, "\t  <sectorsize>%u</sectorsize>\n", pp->sectorsize);
  188         if (pp->geom->flags & G_GEOM_WITHER)
  189                 ;
  190         else if (pp->geom->dumpconf != NULL) {
  191                 sbuf_printf(sb, "\t  <config>\n");
  192                 pp->geom->dumpconf(sb, "\t    ", pp->geom, NULL, pp);
  193                 sbuf_printf(sb, "\t  </config>\n");
  194         }
  195         sbuf_printf(sb, "\t</provider>\n");
  196 }
  197 
  198 
  199 static void
  200 g_conf_geom(struct sbuf *sb, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  201 {
  202         struct g_consumer *cp2;
  203         struct g_provider *pp2;
  204 
  205         sbuf_printf(sb, "    <geom id=\"%p\">\n", gp);
  206         sbuf_printf(sb, "      <class ref=\"%p\"/>\n", gp->class);
  207         sbuf_printf(sb, "      <name>%s</name>\n", gp->name);
  208         sbuf_printf(sb, "      <rank>%d</rank>\n", gp->rank);
  209         if (gp->flags & G_GEOM_WITHER)
  210                 sbuf_printf(sb, "      <wither/>\n");
  211         else if (gp->dumpconf != NULL) {
  212                 sbuf_printf(sb, "      <config>\n");
  213                 gp->dumpconf(sb, "\t", gp, NULL, NULL);
  214                 sbuf_printf(sb, "      </config>\n");
  215         }
  216         LIST_FOREACH(cp2, &gp->consumer, consumer) {
  217                 if (cp != NULL && cp != cp2)
  218                         continue;
  219                 g_conf_consumer(sb, cp2);
  220         }
  221 
  222         LIST_FOREACH(pp2, &gp->provider, provider) {
  223                 if (pp != NULL && pp != pp2)
  224                         continue;
  225                 g_conf_provider(sb, pp2);
  226         }
  227         sbuf_printf(sb, "    </geom>\n");
  228 }
  229 
  230 static void
  231 g_conf_class(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  232 {
  233         struct g_geom *gp2;
  234 
  235         sbuf_printf(sb, "  <class id=\"%p\">\n", mp);
  236         sbuf_printf(sb, "    <name>%s</name>\n", mp->name);
  237         LIST_FOREACH(gp2, &mp->geom, geom) {
  238                 if (gp != NULL && gp != gp2)
  239                         continue;
  240                 g_conf_geom(sb, gp2, pp, cp);
  241         }
  242         sbuf_printf(sb, "  </class>\n");
  243 }
  244 
  245 void
  246 g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  247 {
  248         struct g_class *mp2;
  249 
  250         g_topology_assert();
  251         sbuf_printf(sb, "<mesh>\n");
  252         LIST_FOREACH(mp2, &g_classes, class) {
  253                 if (mp != NULL && mp != mp2)
  254                         continue;
  255                 g_conf_class(sb, mp2, gp, pp, cp);
  256         }
  257         sbuf_printf(sb, "</mesh>\n");
  258         sbuf_finish(sb);
  259 }
  260 
  261 void
  262 g_confxml(void *p, int flag)
  263 {
  264 
  265         KASSERT(flag != EV_CANCEL, ("g_confxml was cancelled"));
  266         g_topology_assert();
  267         g_conf_specific(p, NULL, NULL, NULL, NULL);
  268 }
  269 
  270 void
  271 g_trace(int level, const char *fmt, ...)
  272 {
  273         va_list ap;
  274 
  275         if (!(g_debugflags & level))
  276                 return;
  277         va_start(ap, fmt);
  278         vprintf(fmt, ap);
  279         va_end(ap);
  280         printf("\n");
  281 }

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