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/11.0/sys/geom/geom_dump.c 280686 2015-03-26 11:19:24Z mav $");
   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 #include <geom/geom_disk.h>
   48 
   49 
   50 static void
   51 g_confdot_consumer(struct sbuf *sb, struct g_consumer *cp)
   52 {
   53 
   54         sbuf_printf(sb, "z%p [label=\"r%dw%de%d\"];\n",
   55             cp, cp->acr, cp->acw, cp->ace);
   56         if (cp->provider)
   57                 sbuf_printf(sb, "z%p -> z%p;\n", cp, cp->provider);
   58 }
   59 
   60 static void
   61 g_confdot_provider(struct sbuf *sb, struct g_provider *pp)
   62 {
   63 
   64         sbuf_printf(sb, "z%p [shape=hexagon,label=\"%s\\nr%dw%de%d\\nerr#%d\\n"
   65             "sector=%u\\nstripe=%u\"];\n", pp, pp->name, pp->acr, pp->acw,
   66             pp->ace, pp->error, pp->sectorsize, pp->stripesize);
   67 }
   68 
   69 static void
   70 g_confdot_geom(struct sbuf *sb, struct g_geom *gp)
   71 {
   72         struct g_consumer *cp;
   73         struct g_provider *pp;
   74 
   75         sbuf_printf(sb, "z%p [shape=box,label=\"%s\\n%s\\nr#%d\"];\n",
   76             gp, gp->class->name, gp->name, gp->rank);
   77         LIST_FOREACH(cp, &gp->consumer, consumer) {
   78                 g_confdot_consumer(sb, cp);
   79                 sbuf_printf(sb, "z%p -> z%p;\n", gp, cp);
   80         }
   81 
   82         LIST_FOREACH(pp, &gp->provider, provider) {
   83                 g_confdot_provider(sb, pp);
   84                 sbuf_printf(sb, "z%p -> z%p;\n", pp, gp);
   85         }
   86 }
   87 
   88 static void
   89 g_confdot_class(struct sbuf *sb, struct g_class *mp)
   90 {
   91         struct g_geom *gp;
   92 
   93         LIST_FOREACH(gp, &mp->geom, geom)
   94                 g_confdot_geom(sb, gp);
   95 }
   96 
   97 void
   98 g_confdot(void *p, int flag )
   99 {
  100         struct g_class *mp;
  101         struct sbuf *sb;
  102 
  103         KASSERT(flag != EV_CANCEL, ("g_confdot was cancelled"));
  104         sb = p;
  105         g_topology_assert();
  106         sbuf_printf(sb, "digraph geom {\n");
  107         LIST_FOREACH(mp, &g_classes, class)
  108                 g_confdot_class(sb, mp);
  109         sbuf_printf(sb, "}\n");
  110         sbuf_finish(sb);
  111 }
  112 
  113 static void
  114 g_conftxt_geom(struct sbuf *sb, struct g_geom *gp, int level)
  115 {
  116         struct g_provider *pp;
  117         struct g_consumer *cp;
  118 
  119         if (gp->flags & G_GEOM_WITHER)
  120                 return;
  121         LIST_FOREACH(pp, &gp->provider, provider) {
  122                 sbuf_printf(sb, "%d %s %s %ju %u", level, gp->class->name,
  123                     pp->name, (uintmax_t)pp->mediasize, pp->sectorsize);
  124                 if (gp->dumpconf != NULL)
  125                         gp->dumpconf(sb, NULL, gp, NULL, pp);
  126                 sbuf_printf(sb, "\n");
  127                 LIST_FOREACH(cp, &pp->consumers, consumers)
  128                         g_conftxt_geom(sb, cp->geom, level + 1);
  129         }
  130 }
  131 
  132 static void
  133 g_conftxt_class(struct sbuf *sb, struct g_class *mp)
  134 {
  135         struct g_geom *gp;
  136 
  137         LIST_FOREACH(gp, &mp->geom, geom)
  138                 g_conftxt_geom(sb, gp, 0);
  139 }
  140 
  141 void
  142 g_conftxt(void *p, int flag)
  143 {
  144         struct g_class *mp;
  145         struct sbuf *sb;
  146 
  147         KASSERT(flag != EV_CANCEL, ("g_conftxt was cancelled"));
  148         sb = p;
  149         g_topology_assert();
  150         LIST_FOREACH(mp, &g_classes, class) {
  151                 if (!strcmp(mp->name, G_DISK_CLASS_NAME) || !strcmp(mp->name, "MD"))
  152                         g_conftxt_class(sb, mp);
  153         }
  154         sbuf_finish(sb);
  155 }
  156 
  157 
  158 void
  159 g_conf_printf_escaped(struct sbuf *sb, const char *fmt, ...)
  160 {
  161         struct sbuf *s;
  162         const u_char *c;
  163         va_list ap;
  164 
  165         s = sbuf_new_auto();
  166         va_start(ap, fmt);
  167         sbuf_vprintf(s, fmt, ap);
  168         va_end(ap);
  169         sbuf_finish(s);
  170 
  171         for (c = sbuf_data(s); *c != '\0'; c++) {
  172                 if (*c == '&' || *c == '<' || *c == '>' ||
  173                     *c == '\'' || *c == '"' || *c > 0x7e)
  174                         sbuf_printf(sb, "&#x%X;", *c);
  175                 else if (*c == '\t' || *c == '\n' || *c == '\r' || *c > 0x1f)
  176                         sbuf_putc(sb, *c);
  177                 else
  178                         sbuf_putc(sb, '?');
  179         }
  180         sbuf_delete(s);
  181 }
  182 
  183 static void
  184 g_conf_consumer(struct sbuf *sb, struct g_consumer *cp)
  185 {
  186 
  187         sbuf_printf(sb, "\t<consumer id=\"%p\">\n", cp);
  188         sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", cp->geom);
  189         if (cp->provider != NULL)
  190                 sbuf_printf(sb, "\t  <provider ref=\"%p\"/>\n", cp->provider);
  191         sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
  192             cp->acr, cp->acw, cp->ace);
  193         if (cp->geom->flags & G_GEOM_WITHER)
  194                 ;
  195         else if (cp->geom->dumpconf != NULL) {
  196                 sbuf_printf(sb, "\t  <config>\n");
  197                 cp->geom->dumpconf(sb, "\t    ", cp->geom, cp, NULL);
  198                 sbuf_printf(sb, "\t  </config>\n");
  199         }
  200         sbuf_printf(sb, "\t</consumer>\n");
  201 }
  202 
  203 static void
  204 g_conf_provider(struct sbuf *sb, struct g_provider *pp)
  205 {
  206 
  207         sbuf_printf(sb, "\t<provider id=\"%p\">\n", pp);
  208         sbuf_printf(sb, "\t  <geom ref=\"%p\"/>\n", pp->geom);
  209         sbuf_printf(sb, "\t  <mode>r%dw%de%d</mode>\n",
  210             pp->acr, pp->acw, pp->ace);
  211         sbuf_printf(sb, "\t  <name>");
  212         g_conf_printf_escaped(sb, "%s", pp->name);
  213         sbuf_printf(sb, "</name>\n");
  214         sbuf_printf(sb, "\t  <mediasize>%jd</mediasize>\n",
  215             (intmax_t)pp->mediasize);
  216         sbuf_printf(sb, "\t  <sectorsize>%u</sectorsize>\n", pp->sectorsize);
  217         sbuf_printf(sb, "\t  <stripesize>%u</stripesize>\n", pp->stripesize);
  218         sbuf_printf(sb, "\t  <stripeoffset>%u</stripeoffset>\n", pp->stripeoffset);
  219         if (pp->flags & G_PF_WITHER)
  220                 sbuf_printf(sb, "\t  <wither/>\n");
  221         else if (pp->geom->flags & G_GEOM_WITHER)
  222                 ;
  223         else if (pp->geom->dumpconf != NULL) {
  224                 sbuf_printf(sb, "\t  <config>\n");
  225                 pp->geom->dumpconf(sb, "\t    ", pp->geom, NULL, pp);
  226                 sbuf_printf(sb, "\t  </config>\n");
  227         }
  228         sbuf_printf(sb, "\t</provider>\n");
  229 }
  230 
  231 
  232 static void
  233 g_conf_geom(struct sbuf *sb, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  234 {
  235         struct g_consumer *cp2;
  236         struct g_provider *pp2;
  237 
  238         sbuf_printf(sb, "    <geom id=\"%p\">\n", gp);
  239         sbuf_printf(sb, "      <class ref=\"%p\"/>\n", gp->class);
  240         sbuf_printf(sb, "      <name>");
  241         g_conf_printf_escaped(sb, "%s", gp->name);
  242         sbuf_printf(sb, "</name>\n");
  243         sbuf_printf(sb, "      <rank>%d</rank>\n", gp->rank);
  244         if (gp->flags & G_GEOM_WITHER)
  245                 sbuf_printf(sb, "      <wither/>\n");
  246         else if (gp->dumpconf != NULL) {
  247                 sbuf_printf(sb, "      <config>\n");
  248                 gp->dumpconf(sb, "\t", gp, NULL, NULL);
  249                 sbuf_printf(sb, "      </config>\n");
  250         }
  251         LIST_FOREACH(cp2, &gp->consumer, consumer) {
  252                 if (cp != NULL && cp != cp2)
  253                         continue;
  254                 g_conf_consumer(sb, cp2);
  255         }
  256 
  257         LIST_FOREACH(pp2, &gp->provider, provider) {
  258                 if (pp != NULL && pp != pp2)
  259                         continue;
  260                 g_conf_provider(sb, pp2);
  261         }
  262         sbuf_printf(sb, "    </geom>\n");
  263 }
  264 
  265 static void
  266 g_conf_class(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  267 {
  268         struct g_geom *gp2;
  269 
  270         sbuf_printf(sb, "  <class id=\"%p\">\n", mp);
  271         sbuf_printf(sb, "    <name>");
  272         g_conf_printf_escaped(sb, "%s", mp->name);
  273         sbuf_printf(sb, "</name>\n");
  274         LIST_FOREACH(gp2, &mp->geom, geom) {
  275                 if (gp != NULL && gp != gp2)
  276                         continue;
  277                 g_conf_geom(sb, gp2, pp, cp);
  278         }
  279         sbuf_printf(sb, "  </class>\n");
  280 }
  281 
  282 void
  283 g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
  284 {
  285         struct g_class *mp2;
  286 
  287         g_topology_assert();
  288         sbuf_printf(sb, "<mesh>\n");
  289         LIST_FOREACH(mp2, &g_classes, class) {
  290                 if (mp != NULL && mp != mp2)
  291                         continue;
  292                 g_conf_class(sb, mp2, gp, pp, cp);
  293         }
  294         sbuf_printf(sb, "</mesh>\n");
  295         sbuf_finish(sb);
  296 }
  297 
  298 void
  299 g_confxml(void *p, int flag)
  300 {
  301 
  302         KASSERT(flag != EV_CANCEL, ("g_confxml was cancelled"));
  303         g_topology_assert();
  304         g_conf_specific(p, NULL, NULL, NULL, NULL);
  305 }
  306 
  307 void
  308 g_trace(int level, const char *fmt, ...)
  309 {
  310         va_list ap;
  311 
  312         if (!(g_debugflags & level))
  313                 return;
  314         va_start(ap, fmt);
  315         vprintf(fmt, ap);
  316         va_end(ap);
  317         printf("\n");
  318 }

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