/*-
* Copyright (c) 2003 Poul-Henning Kamp
* Copyright (c) 2002 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by Poul-Henning Kamp
* and NAI Labs, the Security Research Division of Network Associates, Inc.
* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
* DARPA CHATS research program.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <paths.h>
#include <fcntl.h>
#include <err.h>
#include <bsdxml.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/queue.h>
#include <sys/sbuf.h>
#include <sys/mman.h>
struct sector {
LIST_ENTRY(sector) sectors;
off_t offset;
unsigned char *data;
};
struct simdisk_softc {
int sectorsize;
off_t mediasize;
off_t lastsector;
LIST_HEAD(,sector) sectors;
struct sbuf *sbuf;
struct sector *sp;
u_int fwsectors;
u_int fwheads;
u_int fwcylinders;
};
static void
g_simdisk_insertsector(struct simdisk_softc *sc, struct sector *dsp)
{
struct sector *dsp2, *dsp3;
if (sc->lastsector < dsp->offset)
sc->lastsector = dsp->offset;
if (LIST_EMPTY(&sc->sectors)) {
LIST_INSERT_HEAD(&sc->sectors, dsp, sectors);
return;
}
dsp3 = NULL;
LIST_FOREACH(dsp2, &sc->sectors, sectors) {
dsp3 = dsp2;
if (dsp2->offset > dsp->offset) {
LIST_INSERT_BEFORE(dsp2, dsp, sectors);
return;
}
}
LIST_INSERT_AFTER(dsp3, dsp, sectors);
}
static void
startElement(void *userData, const char *name, const char **atts __unused)
{
struct simdisk_softc *sc;
sc = userData;
if (!strcasecmp(name, "sector")) {
sc->sp = calloc(1, sizeof(*sc->sp) + sc->sectorsize);
sc->sp->data = (u_char *)(sc->sp + 1);
}
sbuf_clear(sc->sbuf);
}
static void
endElement(void *userData, const char *name)
{
struct simdisk_softc *sc;
char *p;
u_char *q;
int i, j;
off_t o;
sc = userData;
if (!strcasecmp(name, "comment")) {
sbuf_clear(sc->sbuf);
return;
}
sbuf_finish(sc->sbuf);
if (!strcasecmp(name, "sectorsize")) {
sc->sectorsize = strtoul(sbuf_data(sc->sbuf), &p, 0);
if (*p != '\0')
errx(1, "strtoul croaked on sectorsize");
} else if (!strcasecmp(name, "mediasize")) {
o = strtoull(sbuf_data(sc->sbuf), &p, 0);
if (*p != '\0')
errx(1, "strtoul croaked on mediasize");
if (o > 0)
sc->mediasize = o;
} else if (!strcasecmp(name, "fwsectors")) {
sc->fwsectors = strtoul(sbuf_data(sc->sbuf), &p, 0);
if (*p != '\0')
errx(1, "strtoul croaked on fwsectors");
} else if (!strcasecmp(name, "fwheads")) {
sc->fwheads = strtoul(sbuf_data(sc->sbuf), &p, 0);
if (*p != '\0')
errx(1, "strtoul croaked on fwheads");
} else if (!strcasecmp(name, "fwcylinders")) {
sc->fwcylinders = strtoul(sbuf_data(sc->sbuf), &p, 0);
if (*p != '\0')
errx(1, "strtoul croaked on fwcylinders");
} else if (!strcasecmp(name, "offset")) {
sc->sp->offset= strtoull(sbuf_data(sc->sbuf), &p, 0);
if (*p != '\0')
errx(1, "strtoul croaked on offset");
} else if (!strcasecmp(name, "fill")) {
j = strtoul(sbuf_data(sc->sbuf), NULL, 16);
memset(sc->sp->data, j, sc->sectorsize);
} else if (!strcasecmp(name, "hexdata")) {
q = sc->sp->data;
p = sbuf_data(sc->sbuf);
for (i = 0; i < sc->sectorsize; i++) {
if (!isxdigit(*p))
errx(1, "I croaked on hexdata %d:(%02x)", i, *p);
if (isdigit(*p))
j = (*p - '0') << 4;
else
j = (tolower(*p) - 'a' + 10) << 4;
p++;
if (!isxdigit(*p))
errx(1, "I croaked on hexdata %d:(%02x)", i, *p);
if (isdigit(*p))
j |= *p - '0';
else
j |= tolower(*p) - 'a' + 10;
p++;
*q++ = j;
}
} else if (!strcasecmp(name, "sector")) {
g_simdisk_insertsector(sc, sc->sp);
sc->sp = NULL;
} else if (!strcasecmp(name, "diskimage")) {
} else if (!strcasecmp(name, "FreeBSD")) {
} else {
printf("<%s>[[%s]]\n", name, sbuf_data(sc->sbuf));
}
sbuf_clear(sc->sbuf);
}
static void
characterData(void *userData, const XML_Char *s, int len)
{
const char *b, *e;
struct simdisk_softc *sc;
sc = userData;
b = s;
e = s + len - 1;
while (isspace(*b) && b < e)
b++;
while (isspace(*e) && e > b)
e--;
if (e != b || !isspace(*b))
sbuf_bcat(sc->sbuf, b, e - b + 1);
}
static struct simdisk_softc *
g_simdisk_xml_load(const char *file)
{
XML_Parser parser = XML_ParserCreate(NULL);
struct stat st;
char *p;
struct simdisk_softc *sc;
int fd, i;
sc = calloc(1, sizeof *sc);
sc->sbuf = sbuf_new_auto();
LIST_INIT(&sc->sectors);
XML_SetUserData(parser, sc);
XML_SetElementHandler(parser, startElement, endElement);
XML_SetCharacterDataHandler(parser, characterData);
fd = open(file, O_RDONLY);
if (fd < 0)
err(1, "%s", file);
fstat(fd, &st);
p = mmap(NULL, st.st_size, PROT_READ, MAP_NOCORE|MAP_PRIVATE, fd, 0);
i = XML_Parse(parser, p, st.st_size, 1);
if (i != 1)
errx(1, "XML_Parse complains: return %d", i);
munmap(p, st.st_size);
close(fd);
XML_ParserFree(parser);
return (sc);
}
int
main(int argc, char **argv)
{
struct simdisk_softc *sc;
char buf[BUFSIZ];
int error, fd;
struct sector *dsp;
if (argc != 3)
errx(1, "Usage: %s mddevice xmlfile", argv[0]);
sc = g_simdisk_xml_load(argv[2]);
if (sc->mediasize == 0)
sc->mediasize = sc->lastsector + sc->sectorsize * 10;
if (sc->sectorsize == 0)
sc->sectorsize = 512;
sprintf(buf, "mdconfig -a -t malloc -s %jd -S %d",
(intmax_t)sc->mediasize / sc->sectorsize, sc->sectorsize);
if (sc->fwsectors && sc->fwheads)
sprintf(buf + strlen(buf), " -x %d -y %d",
sc->fwsectors, sc->fwheads);
sprintf(buf + strlen(buf), " -u %s", argv[1]);
error = system(buf);
if (error)
return (error);
fd = open(argv[1], O_RDWR);
if (fd < 0 && errno == ENOENT) {
sprintf(buf, "%s%s", _PATH_DEV, argv[1]);
fd = open(buf, O_RDWR);
}
if (fd < 0)
err(1, "Could not open %s", argv[1]);
LIST_FOREACH(dsp, &sc->sectors, sectors) {
lseek(fd, dsp->offset, SEEK_SET);
error = write(fd, dsp->data, sc->sectorsize);
if (error != sc->sectorsize)
err(1, "write sectordata failed");
}
close(fd);
exit (0);
}
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