mirror of
https://github.com/fail0verflow/switch-coreboot.git
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11fc6fdf71
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@70 f3766cd6-281f-0410-b1cd-43a5c92072e9
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
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* lar - LinuxBIOS archiver
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*
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* Copright (C) 2006-2007 coresystems GmbH
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* Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*
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*/
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#include <arch/types.h>
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#include <string.h>
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#include <lar.h>
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#include <console/loglevel.h>
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#ifndef CONFIG_BIG_ENDIAN
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#define ntohl(x) ( ((x&0xff)<<24) | ((x&0xff00)<<8) | \
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((x&0xff0000) >> 8) | ((x&0xff000000) >> 24) )
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#else
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#define ntohl(x) (x)
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#endif
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int find_file(struct mem_file *archive, char *filename, struct mem_file *result)
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{
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char * walk, *fullname;
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struct lar_header * header;
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printk(BIOS_INFO, "filename is %s\n", filename);
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printk(BIOS_INFO, "start 0x%x len 0x%x\n", archive->start, archive->len);
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for (walk = archive->start; walk < (char *)archive->start +
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archive->len; walk+=16) {
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printk(BIOS_INFO, "in for loop *start is %x\n", *(unsigned long *) archive->start);
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printk(BIOS_INFO, "walk is %s\n", walk);
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if(strcmp(walk, MAGIC)!=0)
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continue;
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header=(struct lar_header *)walk;
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fullname=walk+sizeof(struct lar_header);
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printk(BIOS_INFO, "fullname is %s\n", fullname);
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// FIXME: check checksum
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if(strcmp(fullname, filename)==0) {
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result->start=walk + ntohl(header->offset);
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result->len=ntohl(header->len);
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return 0;
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}
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// skip file
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walk += ( ntohl(header->offset) + ntohl(header->len)
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+ 15 ) & 0xfffffff0;
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}
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printk(BIOS_INFO, "return 1! walk %p archive->start %p start _+ len %p\n", walk, archive->start, (char *)archive->start +
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archive->len);
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return 1;
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}
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int copy_file(struct mem_file *archive, char *filename, void *where)
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{
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int ret;
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struct mem_file result;
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ret = find_file(archive, filename, &result);
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if (ret) {
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printk(BIOS_INFO, "copy_file: no such name %s\n", filename);
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return 1;
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}
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memcpy(where, result.start, result.len);
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return 0;
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}
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int run_file(struct mem_file *archive, char *filename, void *where)
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{
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int (*v)();
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if (copy_file(archive, filename, where)){
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printk(BIOS_INFO, "run file %s failed: ENOENT\n", filename);
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return 1;
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}
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v = where;
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return v();
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}
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