245 lines
7.0 KiB
C
245 lines
7.0 KiB
C
/*-
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* Copyright (c) 2002 Poul-Henning Kamp
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* Copyright (c) 2002 Networks Associates Technology, Inc.
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by Poul-Henning Kamp
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* and NAI Labs, the Security Research Division of Network Associates, Inc.
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* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
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* DARPA CHATS research program.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <strings.h>
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#include <err.h>
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#include <md5.h>
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#include <sys/errno.h>
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#include <geom/geom.h>
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#include <string.h>
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#include <ctype.h>
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#include "expat.h"
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <sys/queue.h>
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#include <sys/sbuf.h>
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#include "geom_simdisk.h"
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void
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g_simdisk_xml_save(char *name, char *file)
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{
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struct g_geom *gp;
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struct simdisk_softc *sc;
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struct sector *dsp;
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int i, j;
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FILE *f;
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u_char *p;
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LIST_FOREACH(gp, &g_simdisk_class.geom, geom) {
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if (strcmp(name, gp->name))
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continue;
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sc = gp->softc;
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f = fopen(file, "w");
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if (f == NULL)
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err(1, file);
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fprintf(f, "<?xml version=\"1.0\"?>\n");
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fprintf(f, "<DISKIMAGE>\n");
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#if 0
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{
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struct sbuf *sb;
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sb = g_conf_specific(&g_simdisk_class, gp, NULL, NULL);
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fprintf(f, " <config>%s</config>\n", sbuf_data(sb));
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}
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#endif
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fprintf(f, " <sectorsize>%u</sectorsize>\n", sc->sectorsize);
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fprintf(f, " <mediasize>%llu</mediasize>\n", sc->mediasize);
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fprintf(f, " <fwsectors>%u</fwsectors>\n", sc->fwsectors);
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fprintf(f, " <fwheads>%u</fwheads>\n", sc->fwheads);
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fprintf(f, " <fwcylinders>%u</fwcylinders>\n", sc->fwcylinders);
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LIST_FOREACH(dsp, &sc->sectors, sectors) {
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fprintf(f, " <sector>\n");
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fprintf(f, " <offset>%llu</offset>\n", dsp->offset);
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fprintf(f, " <hexdata>\n");
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p = dsp->data;
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for (j = 0 ; j < sc->sectorsize; j += 32) {
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fprintf(f, "\t");
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for (i = 0; i < 32; i++)
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fprintf(f, "%02x", *p++);
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fprintf(f, "\n");
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}
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fprintf(f, " </hexdata>\n");
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fprintf(f, " </sector>\n");
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}
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fprintf(f, "</DISKIMAGE>\n");
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fclose(f);
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}
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}
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static void
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startElement(void *userData, const char *name, const char **atts __unused)
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{
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struct simdisk_softc *sc;
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sc = userData;
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if (!strcasecmp(name, "sector")) {
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sc->sp = calloc(1, sizeof(*sc->sp) + sc->sectorsize);
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sc->sp->data = (u_char *)(sc->sp + 1);
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}
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sbuf_clear(sc->sbuf);
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}
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static void
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endElement(void *userData, const char *name)
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{
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struct simdisk_softc *sc;
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char *p;
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u_char *q;
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int i, j;
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off_t o;
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sc = userData;
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if (!strcasecmp(name, "comment")) {
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sbuf_clear(sc->sbuf);
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return;
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}
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sbuf_finish(sc->sbuf);
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if (!strcasecmp(name, "sectorsize")) {
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sc->sectorsize = strtoul(sbuf_data(sc->sbuf), &p, 0);
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if (*p != '\0')
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errx(1, "strtoul croaked on sectorsize");
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} else if (!strcasecmp(name, "mediasize")) {
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o = strtoull(sbuf_data(sc->sbuf), &p, 0);
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if (*p != '\0')
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errx(1, "strtoul croaked on mediasize");
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if (o > 0)
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sc->mediasize = o;
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} else if (!strcasecmp(name, "fwsectors")) {
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sc->fwsectors = strtoul(sbuf_data(sc->sbuf), &p, 0);
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if (*p != '\0')
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errx(1, "strtoul croaked on fwsectors");
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} else if (!strcasecmp(name, "fwheads")) {
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sc->fwheads = strtoul(sbuf_data(sc->sbuf), &p, 0);
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if (*p != '\0')
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errx(1, "strtoul croaked on fwheads");
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} else if (!strcasecmp(name, "fwcylinders")) {
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sc->fwcylinders = strtoul(sbuf_data(sc->sbuf), &p, 0);
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if (*p != '\0')
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errx(1, "strtoul croaked on fwcylinders");
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} else if (!strcasecmp(name, "offset")) {
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sc->sp->offset= strtoull(sbuf_data(sc->sbuf), &p, 0);
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if (*p != '\0')
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errx(1, "strtoul croaked on offset");
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} else if (!strcasecmp(name, "fill")) {
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j = strtoul(sbuf_data(sc->sbuf), NULL, 16);
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memset(sc->sp->data, j, sc->sectorsize);
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} else if (!strcasecmp(name, "hexdata")) {
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q = sc->sp->data;
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p = sbuf_data(sc->sbuf);
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for (i = 0; i < sc->sectorsize; i++) {
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if (!isxdigit(*p))
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errx(1, "I croaked on hexdata %d:(%02x)", i, *p);
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if (isdigit(*p))
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j = (*p - '0') << 4;
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else
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j = (tolower(*p) - 'a' + 10) << 4;
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p++;
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if (!isxdigit(*p))
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errx(1, "I croaked on hexdata %d:(%02x)", i, *p);
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if (isdigit(*p))
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j |= *p - '0';
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else
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j |= tolower(*p) - 'a' + 10;
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p++;
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*q++ = j;
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}
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} else if (!strcasecmp(name, "sector")) {
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g_simdisk_insertsector(sc, sc->sp);
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sc->sp = NULL;
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} else if (!strcasecmp(name, "diskimage")) {
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} else if (!strcasecmp(name, "FreeBSD")) {
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} else {
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printf("<%s>[[%s]]\n", name, sbuf_data(sc->sbuf));
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}
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sbuf_clear(sc->sbuf);
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}
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static void
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characterData(void *userData, const XML_Char *s, int len)
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{
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const char *b, *e;
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struct simdisk_softc *sc;
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sc = userData;
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b = s;
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e = s + len - 1;
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while (isspace(*b) && b < e)
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b++;
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while (isspace(*e) && e > b)
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e--;
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if (e != b || !isspace(*b))
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sbuf_bcat(sc->sbuf, b, e - b + 1);
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}
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struct g_geom *
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g_simdisk_xml_load(char *name, char *file)
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{
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XML_Parser parser = XML_ParserCreate(NULL);
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struct stat st;
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char *p;
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struct simdisk_softc *sc;
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int fd, i;
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sc = calloc(1, sizeof *sc);
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sc->fd = -1;
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sc->sbuf = sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND);
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sc->mediasize = 1024 * 1024 * 1024 * (off_t)1024;
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LIST_INIT(&sc->sectors);
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TAILQ_INIT(&sc->sort);
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XML_SetUserData(parser, sc);
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XML_SetElementHandler(parser, startElement, endElement);
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XML_SetCharacterDataHandler(parser, characterData);
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fd = open(file, O_RDONLY);
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if (fd < 0)
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err(1, file);
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fstat(fd, &st);
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p = mmap(NULL, st.st_size, PROT_READ, MAP_NOCORE|MAP_PRIVATE, fd, 0);
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i = XML_Parse(parser, p, st.st_size, 1);
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if (i != 1)
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errx(1, "XML_Parse complains: return %d", i);
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munmap(p, st.st_size);
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close(fd);
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XML_ParserFree(parser);
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return (g_simdisk_create(name, sc));
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}
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