2008-07-27 Bean <bean123ch@gmail.com>
* commands/crc.c: New file. * lib/crc.c: Likewise. * include/grub/lib/crc.h: Likewise. * util/grub-fstest.c: grub/hexdump.h => grub/lib/hexdump.h. * commands/hexdump.c: grub/hexdump.h => grub/lib/hexdump.h. (hexdump): Move this function to ... * lib/hexdump.c: ... here. * include/grub/hexdump.h: Renamed to ... * include/grub/lib/hexdump.h: ... this. * commands/loadenv.c: grub/envblk.h => grub/lib/envblk.h * util/grub-editenv.c: Likewise. * include/envblk.h: Renamed to ... * include/lib/envblk.h: ... this. * util/envblk.c: Renamed to ... * lib/envblk.c: ... this. * conf/common.rmk (grub_fstest_SOURCES): commands/hexdump.c => lib/hexdump.c. (grub_editenv_SOURCES): util/envblk.c => lib/envblk.c (pkglib_MODULES): Add crc.mod. (hexdump_mod_SOURCES): Add lib/hexdump.c. (loadenv_mod_SOURCES): util/envblk.c => lib/envblk.c. (crc_mod_SOURCES): New macro. (crc_mod_CFLAGS): Likewise. (crc_mod_LDFLAGS): Likewise. * conf/i386-coreboot.rmk (grub_emu_SOURCES): Add lib/hexdump.c. * conf/i386-efi.rmk (grub_emu_SOURCES): Likewise. * conf/i386-pc.rmk (grub_emu_SOURCES): Likewise. * conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Likewise. * conf/x86_64-efi.rmk (grub_emu_SOURCES): Likewise.
This commit is contained in:
bean
parent
8749e9e524
commit
a85cd5a0b5
26 changed files with 479 additions and 125 deletions
75
lib/crc.c
Normal file
75
lib/crc.c
Normal file
|
|
@ -0,0 +1,75 @@
|
|||
/* crc.c - crc function */
|
||||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2008 Free Software Foundation, Inc.
|
||||
*
|
||||
* GRUB is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GRUB is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <grub/types.h>
|
||||
#include <grub/lib/crc.h>
|
||||
|
||||
static grub_uint32_t crc32_table [256];
|
||||
|
||||
static void
|
||||
init_crc32_table (void)
|
||||
{
|
||||
auto grub_uint32_t reflect (grub_uint32_t ref, int len);
|
||||
grub_uint32_t reflect (grub_uint32_t ref, int len)
|
||||
{
|
||||
grub_uint32_t result = 0;
|
||||
int i;
|
||||
|
||||
for (i = 1; i <= len; i++)
|
||||
{
|
||||
if (ref & 1)
|
||||
result |= 1 << (len - i);
|
||||
ref >>= 1;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
grub_uint32_t polynomial = 0x04c11db7;
|
||||
int i, j;
|
||||
|
||||
for(i = 0; i < 256; i++)
|
||||
{
|
||||
crc32_table[i] = reflect(i, 8) << 24;
|
||||
for (j = 0; j < 8; j++)
|
||||
crc32_table[i] = (crc32_table[i] << 1) ^
|
||||
(crc32_table[i] & (1 << 31) ? polynomial : 0);
|
||||
crc32_table[i] = reflect(crc32_table[i], 32);
|
||||
}
|
||||
}
|
||||
|
||||
grub_uint32_t
|
||||
grub_getcrc32 (grub_uint32_t crc, void *buf, int size)
|
||||
{
|
||||
int i;
|
||||
grub_uint8_t *data = buf;
|
||||
|
||||
if (! crc32_table[1])
|
||||
init_crc32_table ();
|
||||
|
||||
crc^= 0xffffffff;
|
||||
|
||||
for (i = 0; i < size; i++)
|
||||
{
|
||||
crc = (crc >> 8) ^ crc32_table[(crc & 0xFF) ^ *data];
|
||||
data++;
|
||||
}
|
||||
|
||||
return crc ^ 0xffffffff;
|
||||
}
|
||||
156
lib/envblk.c
Normal file
156
lib/envblk.c
Normal file
|
|
@ -0,0 +1,156 @@
|
|||
/* envblk.c - Common function for environment block. */
|
||||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2008 Free Software Foundation, Inc.
|
||||
*
|
||||
* GRUB is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GRUB is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <config.h>
|
||||
#include <grub/types.h>
|
||||
#include <grub/misc.h>
|
||||
#include <grub/lib/envblk.h>
|
||||
|
||||
grub_envblk_t
|
||||
grub_envblk_find (char *buf)
|
||||
{
|
||||
grub_uint32_t *pd;
|
||||
int len;
|
||||
|
||||
pd = (grub_uint32_t *) buf;
|
||||
|
||||
for (len = GRUB_ENVBLK_MAXLEN - 6; len > 0; len -= 4, pd++)
|
||||
if (*pd == GRUB_ENVBLK_SIGNATURE)
|
||||
{
|
||||
grub_envblk_t p;
|
||||
|
||||
p = (grub_envblk_t) pd;
|
||||
if (p->length <= len)
|
||||
return p;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
grub_envblk_insert (grub_envblk_t envblk, char *name, char *value)
|
||||
{
|
||||
char *p, *pend;
|
||||
char *found = 0;
|
||||
int nl;
|
||||
|
||||
nl = grub_strlen (name);
|
||||
p = envblk->data;
|
||||
pend = p + envblk->length;
|
||||
|
||||
while (*p)
|
||||
{
|
||||
if ((! found) && (! grub_memcmp (name, p, nl)) && (p[nl] == '='))
|
||||
found = p + nl + 1;
|
||||
|
||||
p += grub_strlen (p) + 1;
|
||||
if (p >= pend)
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (found)
|
||||
{
|
||||
int len1, len2;
|
||||
|
||||
len1 = grub_strlen (found);
|
||||
len2 = grub_strlen (value);
|
||||
if ((p - envblk->data) + 1 - len1 + len2 > envblk->length)
|
||||
return 1;
|
||||
|
||||
grub_memcpy (found + len2 + 1, found + len1 + 1, (p - found) - len1);
|
||||
grub_strcpy (found, value);
|
||||
}
|
||||
else
|
||||
{
|
||||
int len2 = grub_strlen (value);
|
||||
|
||||
if ((p - envblk->data) + nl + 1 + len2 + 2 > envblk->length)
|
||||
return 1;
|
||||
|
||||
grub_strcpy (p, name);
|
||||
p[nl] = '=';
|
||||
grub_strcpy (p + nl + 1, value);
|
||||
p[nl + 1 + len2 + 1] = 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
grub_envblk_delete (grub_envblk_t envblk, char *name)
|
||||
{
|
||||
char *p, *pend;
|
||||
char *found = 0;
|
||||
int nl;
|
||||
|
||||
nl = grub_strlen (name);
|
||||
p = envblk->data;
|
||||
pend = p + envblk->length;
|
||||
|
||||
while (*p)
|
||||
{
|
||||
if ((! found) && (! grub_memcmp (name, p, nl)) && (p[nl] == '='))
|
||||
found = p;
|
||||
|
||||
p += grub_strlen (p) + 1;
|
||||
if (p >= pend)
|
||||
return;
|
||||
}
|
||||
|
||||
if (found)
|
||||
{
|
||||
int len;
|
||||
|
||||
len = grub_strlen (found);
|
||||
grub_memcpy (found, found + len + 1, (p - found) - len);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
grub_envblk_iterate (grub_envblk_t envblk,
|
||||
int hook (char *name, char *value))
|
||||
{
|
||||
char *p, *pend;
|
||||
|
||||
p = envblk->data;
|
||||
pend = p + envblk->length;
|
||||
|
||||
while (*p)
|
||||
{
|
||||
char *v;
|
||||
int r;
|
||||
|
||||
v = grub_strchr (p, '=');
|
||||
if (v)
|
||||
{
|
||||
*v = 0;
|
||||
r = hook (p, v + 1);
|
||||
*v = '=';
|
||||
}
|
||||
else
|
||||
r = hook (p, "");
|
||||
|
||||
if (r)
|
||||
break;
|
||||
|
||||
p += grub_strlen (p) + 1;
|
||||
if (p >= pend)
|
||||
break;
|
||||
}
|
||||
}
|
||||
68
lib/hexdump.c
Normal file
68
lib/hexdump.c
Normal file
|
|
@ -0,0 +1,68 @@
|
|||
/* hexdump.c - hexdump function */
|
||||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2008 Free Software Foundation, Inc.
|
||||
*
|
||||
* GRUB is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* GRUB is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <grub/types.h>
|
||||
#include <grub/misc.h>
|
||||
#include <grub/lib/hexdump.h>
|
||||
|
||||
void
|
||||
hexdump (unsigned long bse, char *buf, int len)
|
||||
{
|
||||
int pos;
|
||||
char line[80];
|
||||
|
||||
while (len > 0)
|
||||
{
|
||||
int cnt, i;
|
||||
|
||||
pos = grub_sprintf (line, "%08lx ", bse);
|
||||
cnt = 16;
|
||||
if (cnt > len)
|
||||
cnt = len;
|
||||
|
||||
for (i = 0; i < cnt; i++)
|
||||
{
|
||||
pos += grub_sprintf (&line[pos], "%02x ", (unsigned char) buf[i]);
|
||||
if ((i & 7) == 7)
|
||||
line[pos++] = ' ';
|
||||
}
|
||||
|
||||
for (; i < 16; i++)
|
||||
{
|
||||
pos += grub_sprintf (&line[pos], " ");
|
||||
if ((i & 7) == 7)
|
||||
line[pos++] = ' ';
|
||||
}
|
||||
|
||||
line[pos++] = '|';
|
||||
|
||||
for (i = 0; i < cnt; i++)
|
||||
line[pos++] = ((buf[i] >= 32) && (buf[i] < 127)) ? buf[i] : '.';
|
||||
|
||||
line[pos++] = '|';
|
||||
|
||||
line[pos] = 0;
|
||||
|
||||
grub_printf ("%s\n", line);
|
||||
|
||||
bse += 16;
|
||||
buf += 16;
|
||||
len -= cnt;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue