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  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2002 Poul-Henning Kamp
    5  * Copyright (c) 2002 Networks Associates Technology, Inc.
    6  * All rights reserved.
    7  *
    8  * This software was developed for the FreeBSD Project by Poul-Henning Kamp
    9  * and NAI Labs, the Security Research Division of Network Associates, Inc.
   10  * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
   11  * DARPA CHATS research program.
   12  *
   13  * Redistribution and use in source and binary forms, with or without
   14  * modification, are permitted provided that the following conditions
   15  * are met:
   16  * 1. Redistributions of source code must retain the above copyright
   17  *    notice, this list of conditions and the following disclaimer.
   18  * 2. Redistributions in binary form must reproduce the above copyright
   19  *    notice, this list of conditions and the following disclaimer in the
   20  *    documentation and/or other materials provided with the distribution.
   21  * 3. The names of the authors may not be used to endorse or promote
   22  *    products derived from this software without specific prior written
   23  *    permission.
   24  *
   25  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   35  * SUCH DAMAGE.
   36  */
   37 
   38 #include <sys/cdefs.h>
   39 __FBSDID("$FreeBSD$");
   40 
   41 #include <sys/param.h>
   42 #include <sys/sbuf.h>
   43 #include <sys/systm.h>
   44 #include <sys/malloc.h>
   45 #include <machine/stdarg.h>
   46 
   47 #include <geom/geom.h>
   48 #include <geom/geom_int.h>
   49 #include <geom/geom_disk.h>
   50 
   51 
   52 static void
   53 g_confdot_consumer(struct sbuf *sb, struct g_consumer *cp)
   54 {
   55 
   56         sbuf_printf(sb, "z%p [label=\"r%dw%de%d\"];\n",
   57             cp, cp->acr, cp->acw, cp->ace);
   58         if (cp->provider)
   59                 sbuf_printf(sb, "z%p -> z%p;\n", cp, cp->provider);
   60 }
   61 
   62 static void
   63 g_confdot_provider(struct sbuf *sb, struct g_provider *pp)
   64 {
   65 
   66         sbuf_printf(sb, "z%p [shape=hexagon,label=\"%s\\nr%dw%de%d\\nerr#%d\\n"
   67             "sector=%u\\nstripe=%u\"];\n", pp, pp->name, pp->acr, pp->acw,
   68             pp->ace, pp->error, pp->sectorsize, pp->stripesize);
   69 }
   70 
   71 static void
   72 g_confdot_geom(struct sbuf *sb, struct g_geom *gp)
   73 {
   74         struct g_consumer *cp;
   75         struct g_provider *pp;
   76 
   77         sbuf_printf(sb, "z%p [shape=box,label=\"%s\\n%s\\nr#%d\"];\n",
   78             gp, gp->class->name, gp->name, gp->rank);
   79         LIST_FOREACH(cp, &gp->consumer, consumer) {
   80                 g_confdot_consumer(sb, cp);
   81                 sbuf_printf(sb, "z%p -> z%p;\n", gp, cp);
   82         }
   83 
   84         LIST_FOREACH(pp, &gp->provider, provider) {
   85                 g_confdot_provider(sb, pp);
   86                 sbuf_printf(sb, "z%p -> z%p;\n", pp, gp);
   87         }
   88 }
   89 
   90 static void
   91 g_confdot_class(struct sbuf *sb, struct g_class *mp)
   92 {
   93         struct g_geom *gp;
   94 
   95         LIST_FOREACH(gp, &mp->geom, geom)
   96                 g_confdot_geom(sb, gp);
   97 }
   98 
   99 void
  100 g_confdot(void *p, int flag )
  101 {
  102         struct g_class *mp;
  103         struct sbuf *sb;
  104 
  105         KASSERT(flag != EV_CANCEL, ("g_confdot was cancelled"));
  106         sb = p;
  107         g_topology_assert();
  108         sbuf_cat(sb, "digraph geom {\n");
  109         LIST_FOREACH(mp, &g_classes, class)
  110                 g_confdot_class(sb, mp);
  111         sbuf_cat(sb, "}\n");
  112         sbuf_finish(sb);
  113 }
  114 
  115 static void
  116 g_conftxt_geom(struct sbuf *sb, struct g_geom *gp, int level)
  117 {
  118         struct g_provider *pp;
  119         struct g_consumer *cp;
  120 
  121         if (gp->flags & G_GEOM_WITHER)
  122                 return;
  123         LIST_FOREACH(pp, &gp->provider, provider) {
  124                 sbuf_printf(sb, "%d %s %s %ju %u", level, gp->class->name,
  125                     pp->name, (uintmax_t)pp->mediasize, pp->sectorsize);
  126                 if (gp->dumpconf != NULL)
  127                         gp->dumpconf(sb, NULL, gp, NULL, pp);
  128                 sbuf_cat(sb, "\n");
  129                 LIST_FOREACH(cp, &pp->consumers, consumers)
  130                         g_conftxt_geom(sb, cp->geom, level + 1);
  131         }
  132 }
  133 
  134 static void
  135 g_conftxt_class(struct sbuf *sb, struct g_class *mp)
  136 {
  137         struct g_geom *gp;
  138 
  139         LIST_FOREACH(gp, &mp->geom, geom)
  140                 g_conftxt_geom(sb, gp, 0);
  141 }
  142 
  143 void
  144 g_conftxt(void *p, int flag)
  145 {
  146         struct g_class *mp;
  147         struct sbuf *sb;
  148 
  149         KASSERT(flag != EV_CANCEL, ("g_conftxt was cancelled"));
  150         sb = p;
  151         g_topology_assert();
  152         LIST_FOREACH(mp, &g_classes, class) {
  153                 if (!strcmp(mp->name, G_DISK_CLASS_NAME) || !strcmp(mp->name, "MD"))
  154                         g_conftxt_class(sb, mp);
  155         }
  156         sbuf_finish(sb);
  157 }
  158 
  159 void
  160 g_conf_cat_escaped(struct sbuf *sb, const char *buf)
  161 {
  162         const u_char *c;
  163 
  164         for (c = buf; *c != '\0'; c++) {
  165                 if (*c == '&' || *c == '<' || *c == '>' ||
  166                     *c == '\'' || *c == '"' || *c > 0x7e)
  167                         sbuf_printf(sb, "&#x%X;", *c);
  168                 else if (*c == '\t' || *c == '\n' || *c == '\r' || *c > 0x1f)
  169                         sbuf_putc(sb, *c);
  170                 else
  171                         sbuf_putc(sb, '?');
  172         }
  173 }
  174 
  175 void
  176 g_conf_printf_escaped(struct sbuf *sb, const char *fmt, ...)
  177 {
  178         struct sbuf *s;
  179         va_list ap;
  180 
  181         s = sbuf_new_auto();
  182         va_start(ap, fmt);
  183         sbuf_vprintf(s, fmt, ap);
  184         va_end(ap);
  185         sbuf_finish(s);
  186 
  187         g_conf_cat_escaped(sb, sbuf_data(s));
  188         sbuf_delete(s);
  189 }
  190 
  191 static void
  192 g_conf_consumer(struct sbuf *sb, struct g_consumer *cp)
  193 {
  194 
  195         sbuf_printf(sb, "\t<consumer id=\"%p\">\n", cp);
  196         sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", cp->geom);
  197         if (cp->provider != NULL)
  198                 sbuf_printf(sb, "\t  <provider ref=\"%p\"/>\n", cp->provider);
  199         sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
  200             cp->acr, cp->acw, cp->ace);
  201         if (cp->geom->flags & G_GEOM_WITHER)
  202                 ;
  203         else if (cp->geom->dumpconf != NULL) {
  204                 sbuf_cat(sb, "\t  <config>\n");
  205                 cp->geom->dumpconf(sb, "\t    ", cp->geom, cp, NULL);
  206                 sbuf_cat(sb, "\t  </config>\n");
  207         }
  208         sbuf_cat(sb, "\t</consumer>\n");
  209 }
  210 
  211 static void
  212 g_conf_provider(struct sbuf *sb, struct g_provider *pp)
  213 {
  214 
  215         sbuf_printf(sb, "\t<provider id=\"%p\">\n", pp);
  216         sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", pp->geom);
  217         sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
  218             pp->acr, pp->acw, pp->ace);
  219         sbuf_cat(sb, "\t  <name>");
  220         g_conf_cat_escaped(sb, pp->name);
  221         sbuf_cat(sb, "</name>\n");
  222         sbuf_printf(sb, "\t  <mediasize>%jd</mediasize>\n",
  223             (intmax_t)pp->mediasize);
  224         sbuf_printf(sb, "\t  <sectorsize>%u</sectorsize>\n", pp->sectorsize);
  225         sbuf_printf(sb, "\t  <stripesize>%u</stripesize>\n", pp->stripesize);
  226         sbuf_printf(sb, "\t  <stripeoffset>%u</stripeoffset>\n", pp->stripeoffset);
  227         if (pp->flags & G_PF_WITHER)
  228                 sbuf_cat(sb, "\t  <wither/>\n");
  229         else if (pp->geom->flags & G_GEOM_WITHER)
  230                 ;
  231         else if (pp->geom->dumpconf != NULL) {
  232                 sbuf_cat(sb, "\t  <config>\n");
  233                 pp->geom->dumpconf(sb, "\t    ", pp->geom, NULL, pp);
  234                 sbuf_cat(sb, "\t  </config>\n");
  235         }
  236         sbuf_cat(sb, "\t</provider>\n");
  237 }
  238 
  239 
  240 static void
  241 g_conf_geom(struct sbuf *sb, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  242 {
  243         struct g_consumer *cp2;
  244         struct g_provider *pp2;
  245         struct g_geom_alias *gap;
  246 
  247         sbuf_printf(sb, "    <geom id=\"%p\">\n", gp);
  248         sbuf_printf(sb, "      <class ref=\"%p\"/>\n", gp->class);
  249         sbuf_cat(sb, "      <name>");
  250         g_conf_cat_escaped(sb, gp->name);
  251         sbuf_cat(sb, "</name>\n");
  252         sbuf_printf(sb, "      <rank>%d</rank>\n", gp->rank);
  253         if (gp->flags & G_GEOM_WITHER)
  254                 sbuf_cat(sb, "      <wither/>\n");
  255         else if (gp->dumpconf != NULL) {
  256                 sbuf_cat(sb, "      <config>\n");
  257                 gp->dumpconf(sb, "\t", gp, NULL, NULL);
  258                 sbuf_cat(sb, "      </config>\n");
  259         }
  260         LIST_FOREACH(cp2, &gp->consumer, consumer) {
  261                 if (cp != NULL && cp != cp2)
  262                         continue;
  263                 g_conf_consumer(sb, cp2);
  264         }
  265 
  266         LIST_FOREACH(pp2, &gp->provider, provider) {
  267                 if (pp != NULL && pp != pp2)
  268                         continue;
  269                 g_conf_provider(sb, pp2);
  270         }
  271         LIST_FOREACH(gap, &gp->aliases, ga_next) {
  272                 sbuf_cat(sb, "      <alias>\n");
  273                 g_conf_cat_escaped(sb, gap->ga_alias);
  274                 sbuf_cat(sb, "      </alias>\n");
  275         }
  276         sbuf_cat(sb, "    </geom>\n");
  277 }
  278 
  279 static void
  280 g_conf_class(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  281 {
  282         struct g_geom *gp2;
  283 
  284         sbuf_printf(sb, "  <class id=\"%p\">\n", mp);
  285         sbuf_cat(sb, "    <name>");
  286         g_conf_cat_escaped(sb, mp->name);
  287         sbuf_cat(sb, "</name>\n");
  288         LIST_FOREACH(gp2, &mp->geom, geom) {
  289                 if (gp != NULL && gp != gp2)
  290                         continue;
  291                 g_conf_geom(sb, gp2, pp, cp);
  292         }
  293         sbuf_cat(sb, "  </class>\n");
  294 }
  295 
  296 void
  297 g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  298 {
  299         struct g_class *mp2;
  300 
  301         g_topology_assert();
  302         sbuf_cat(sb, "<mesh>\n");
  303         LIST_FOREACH(mp2, &g_classes, class) {
  304                 if (mp != NULL && mp != mp2)
  305                         continue;
  306                 g_conf_class(sb, mp2, gp, pp, cp);
  307         }
  308         sbuf_cat(sb, "</mesh>\n");
  309         sbuf_finish(sb);
  310 }
  311 
  312 void
  313 g_confxml(void *p, int flag)
  314 {
  315 
  316         KASSERT(flag != EV_CANCEL, ("g_confxml was cancelled"));
  317         g_topology_assert();
  318         g_conf_specific(p, NULL, NULL, NULL, NULL);
  319 }
  320 
  321 void
  322 (g_trace)(int level, const char *fmt, ...)
  323 {
  324         va_list ap;
  325 
  326         if (!(g_debugflags & level))
  327                 return;
  328         va_start(ap, fmt);
  329         vprintf(fmt, ap);
  330         va_end(ap);
  331         printf("\n");
  332 }

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