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2024-09-09 08:52:07 +00:00
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370
oe-core/meta/recipes-devtools/qemu/qemu-helper/raw2flash.c Normal file
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/*
* Copyright (c) 2006 OpenedHand Ltd.
*
* This file is licensed under GNU GPL v2.
*/
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#define TFR(_) _
#define VERBOSE
#define PBAR_LEN 40
#define PARTITION_START 0x00700000
static const int ecc_pos8[] = {
0x0, 0x1, 0x2,
};
static const int ecc_pos16[] = {
0x0, 0x1, 0x2, 0x3, 0x6, 0x7,
};
static const int ecc_pos64[] = {
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
};
static const int ecc_akita[] = {
0x05, 0x01, 0x02, 0x03, 0x06, 0x07, 0x15, 0x11,
0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23,
0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37,
};
struct jffs_marker_s {
int pos;
uint8_t value;
};
static const struct jffs_marker_s free_pos8[] = {
{ 0x03, 0xff }, { 0x04, 0xff }, { 0x06, 0x85 }, { 0x07, 0x19 },
{ -1 },
};
static const struct jffs_marker_s free_pos16[] = {
{ 0x08, 0x85 }, { 0x09, 0x19 }, { 0x0a, 0x03 }, { 0x0b, 0x20 },
{ 0x0c, 0x08 }, { 0x0d, 0x00 }, { 0x0e, 0x00 }, { 0x0f, 0x00 },
{ -1 },
};
static const struct jffs_marker_s free_pos64[] = {
{ 0x02, 0xff }, { 0x03, 0xff }, { 0x04, 0xff }, { 0x05, 0xff },
{ 0x06, 0xff }, { 0x07, 0xff }, { 0x08, 0xff }, { 0x09, 0xff },
{ 0x0a, 0xff }, { 0x0b, 0xff }, { 0x0c, 0xff }, { 0x0d, 0xff },
{ 0x0e, 0xff }, { 0x0f, 0xff }, { 0x10, 0x85 }, { 0x11, 0x19 },
{ 0x12, 0x03 }, { 0x13, 0x20 }, { 0x14, 0x08 }, { 0x15, 0x00 },
{ 0x16, 0x00 }, { 0x17, 0x00 }, { 0x18, 0xff }, { 0x19, 0xff },
{ 0x1a, 0xff }, { 0x1b, 0xff }, { 0x1c, 0xff }, { 0x1d, 0xff },
{ 0x1e, 0xff }, { 0x1f, 0xff }, { 0x20, 0xff }, { 0x21, 0xff },
{ 0x22, 0xff }, { 0x23, 0xff }, { 0x24, 0xff }, { 0x25, 0xff },
{ 0x26, 0xff }, { 0x27, 0xff },
{ -1 },
};
static const struct jffs_marker_s free_akita[] = {
{ 0x08, 0x85 }, { 0x09, 0x19 }, { 0x0a, 0x03 }, { 0x0b, 0x20 },
{ 0x0c, 0x08 }, { 0x0d, 0x00 }, { 0x0e, 0x00 }, { 0x0f, 0x00 },
{ 0x10, 0xff },
{ -1 },
};
#define LEN(array) (sizeof(array) / sizeof(*array))
static const struct ecc_style_s {
int page_size;
int oob_size;
int eccbytes;
int eccsize;
const int *eccpos;
int romsize;
const struct jffs_marker_s *freepos;
} spitz = {
0x200, 0x10, 0x100, LEN(ecc_pos16), ecc_pos16, 0x01000000, free_pos16
}, akita = {
0x800, 0x40, 0x100, LEN(ecc_akita), ecc_akita, 0x08000000, free_akita
}, borzoi = {
0x800, 0x40, 0x100, LEN(ecc_akita), ecc_akita, 0x08000000, free_akita
}, terrier = {
0x800, 0x40, 0x100, LEN(ecc_akita), ecc_akita, 0x08000000, free_akita
};
struct ecc_state_s {
int count;
uint8_t cp;
uint8_t lp[2];
const struct ecc_style_s *style;
};
#ifndef flash2raw
/*
* Pre-calculated 256-way 1 byte column parity. Table borrowed from Linux.
*/
static const uint8_t ecc_precalc_table[] = {
0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a,
0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00,
0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f,
0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c,
0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59,
0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33,
0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56,
0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55,
0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30,
0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
0x6a, 0x3f, 0x3c, 0x69, 0x33, 0x66, 0x65, 0x30,
0x30, 0x65, 0x66, 0x33, 0x69, 0x3c, 0x3f, 0x6a,
0x0f, 0x5a, 0x59, 0x0c, 0x56, 0x03, 0x00, 0x55,
0x55, 0x00, 0x03, 0x56, 0x0c, 0x59, 0x5a, 0x0f,
0x0c, 0x59, 0x5a, 0x0f, 0x55, 0x00, 0x03, 0x56,
0x56, 0x03, 0x00, 0x55, 0x0f, 0x5a, 0x59, 0x0c,
0x69, 0x3c, 0x3f, 0x6a, 0x30, 0x65, 0x66, 0x33,
0x33, 0x66, 0x65, 0x30, 0x6a, 0x3f, 0x3c, 0x69,
0x03, 0x56, 0x55, 0x00, 0x5a, 0x0f, 0x0c, 0x59,
0x59, 0x0c, 0x0f, 0x5a, 0x00, 0x55, 0x56, 0x03,
0x66, 0x33, 0x30, 0x65, 0x3f, 0x6a, 0x69, 0x3c,
0x3c, 0x69, 0x6a, 0x3f, 0x65, 0x30, 0x33, 0x66,
0x65, 0x30, 0x33, 0x66, 0x3c, 0x69, 0x6a, 0x3f,
0x3f, 0x6a, 0x69, 0x3c, 0x66, 0x33, 0x30, 0x65,
0x00, 0x55, 0x56, 0x03, 0x59, 0x0c, 0x0f, 0x5a,
0x5a, 0x0f, 0x0c, 0x59, 0x03, 0x56, 0x55, 0x00,
};
/* Update ECC parity count */
static inline uint8_t ecc_digest(struct ecc_state_s *s, uint8_t sample) {
uint8_t idx = ecc_precalc_table[sample];
s->cp ^= idx & 0x3f;
if (idx & 0x40) {
s->lp[0] ^= ~(s->count & 0xff);
s->lp[1] ^= s->count & 0xff;
}
s->count ++;
return sample;
}
static void buffer_digest(struct ecc_state_s *ecc,
const uint8_t *buf, uint8_t *out) {
int i, lp_a[2];
ecc->lp[0] = 0x00;
ecc->lp[1] = 0x00;
ecc->cp = 0x00;
ecc->count = 0;
for (i = 0; i < ecc->style->eccbytes; i ++)
ecc_digest(ecc, buf[i]);
# define BSHR(byte, from, to) ((ecc->lp[byte] >> (from - to)) & (1 << to))
lp_a[0] =
BSHR(0, 4, 0) | BSHR(0, 5, 2) |
BSHR(0, 6, 4) | BSHR(0, 7, 6) |
BSHR(1, 4, 1) | BSHR(1, 5, 3) |
BSHR(1, 6, 5) | BSHR(1, 7, 7);
# define BSHL(byte, from, to) ((ecc->lp[byte] << (to - from)) & (1 << to))
lp_a[1] =
BSHL(0, 0, 0) | BSHL(0, 1, 2) |
BSHL(0, 2, 4) | BSHL(0, 3, 6) |
BSHL(1, 0, 1) | BSHL(1, 1, 3) |
BSHL(1, 2, 5) | BSHL(1, 3, 7);
out[0] = ~lp_a[1];
out[1] = ~lp_a[0];
out[2] = (~ecc->cp << 2) | 0x03;
}
static void jffs2_format(const struct ecc_state_s *ecc, uint8_t oob[]) {
const struct jffs_marker_s *byte;
for (byte = ecc->style->freepos; byte->pos >= 0; byte ++)
oob[byte->pos] = byte->value;
}
static void buffer_fill(const struct ecc_state_s *ecc, uint8_t buffer[],
int *len, int *partition, int count, uint8_t jffs_buffer[]) {
int ret;
switch (*partition) {
case 0:
if (count < PARTITION_START) {
memcpy(buffer, jffs_buffer + count,
ecc->style->eccbytes);
*len = ecc->style->eccbytes;
break;
}
*partition = 1;
case 1:
if (count - PARTITION_START < PARTITION_START) {
memcpy(buffer, jffs_buffer + count - PARTITION_START,
ecc->style->eccbytes);
*len = ecc->style->eccbytes;
break;
}
while (*len < ecc->style->eccbytes) {
ret = TFR(read(0, buffer + *len, 0x800 - *len));
if (ret <= 0)
break;
*len += ret;
}
if (*len == 0)
*partition = 2;
else if (*len < ecc->style->eccbytes) {
fprintf(stderr, "\nWarning: %i stray bytes\n", *len);
memset(buffer + *len, 0xff,
ecc->style->eccbytes - *len);
*len = ecc->style->eccbytes;
break;
} else
break;
case 2:
memset(buffer, 0xff, ecc->style->eccbytes);
*len = ecc->style->eccbytes;
break;
}
}
int main(int argc, char *argv[], char *envp[]) {
struct ecc_state_s ecc;
uint8_t buffer[0x1000], ecc_payload[0x40], regs[3], *jffs;
int ret, len, eccbyte, count, partition;
/* Check if we're called by "raw2flash.spitz" or similar */
len = strlen(argv[0]);
if (!strcasecmp(argv[0] + len - 5, "akita"))
ecc.style = &akita;
else if (!strcasecmp(argv[0] + len - 6, "borzoi"))
ecc.style = &borzoi;
else if (!strcasecmp(argv[0] + len - 7, "terrier"))
ecc.style = &terrier;
else
ecc.style = &spitz;
# ifdef VERBOSE
fprintf(stderr, "[");
# endif
/* Skip first 10 bytes */
TFR(read(0, buffer, 0x10));
len = 0;
jffs = (uint8_t *) malloc(PARTITION_START);
while (len < PARTITION_START) {
ret = TFR(read(0, jffs + len, PARTITION_START - len));
if (ret <= 0)
break;
len += ret;
}
/* Convert data from stdin */
partition = len = eccbyte = count = 0;
memset(ecc_payload, 0xff, ecc.style->oob_size);
jffs2_format(&ecc, ecc_payload);
while (count < ecc.style->romsize) {
buffer_fill(&ecc, buffer, &len, &partition, count, jffs);
buffer_digest(&ecc, buffer, regs);
ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[0];
ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[1];
ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[2];
TFR(write(1, buffer, ecc.style->eccbytes));
count += ecc.style->eccbytes;
len -= ecc.style->eccbytes;
memmove(buffer, buffer + ecc.style->eccbytes, len);
if (eccbyte >= ecc.style->eccsize) {
TFR(write(1, ecc_payload, ecc.style->oob_size));
eccbyte = 0;
memset(ecc_payload, 0xff, ecc.style->oob_size);
if (partition < 2)
jffs2_format(&ecc, ecc_payload);
}
# ifdef VERBOSE
if (count * PBAR_LEN / ecc.style->romsize >
(count - ecc.style->eccbytes) *
PBAR_LEN / ecc.style->romsize)
fprintf(stderr, "#");
# endif
}
# ifdef VERBOSE
fprintf(stderr, "]\n");
# endif
free(jffs);
return 0;
}
#else
int main(int argc, char *argv[], char *envp[]) {
struct ecc_state_s ecc;
uint8_t buffer[0x1000];
int ret, len, count;
/* Check if we're called by "flash2raw.spitz" or similar */
len = strlen(argv[0]);
if (!strcasecmp(argv[0] + len - 5, "akita"))
ecc.style = &akita;
else if (!strcasecmp(argv[0] + len - 6, "borzoi"))
ecc.style = &borzoi;
else if (!strcasecmp(argv[0] + len - 7, "terrier"))
ecc.style = &terrier;
else
ecc.style = &spitz;
# ifdef VERBOSE
fprintf(stderr, "[");
# endif
/* Convert data from stdin */
count = 0;
while (count < ecc.style->romsize) {
len = 0;
while (len < ecc.style->page_size) {
ret = TFR(read(0, buffer + len,
ecc.style->page_size - len));
if (ret <= 0)
break;
len += ret;
}
if (len == 0)
break;
if (len < ecc.style->page_size) {
fprintf(stderr, "\nWarning: %i stray bytes\n", len);
}
TFR(write(1, buffer, ecc.style->page_size));
count += len;
len = 0;
while (len < ecc.style->oob_size) {
ret = TFR(read(0, buffer, ecc.style->oob_size - len));
if (ret <= 0)
break;
len += ret;
}
# ifdef VERBOSE
if (count * PBAR_LEN / ecc.style->romsize >
(count - ecc.style->page_size) *
PBAR_LEN / ecc.style->romsize)
fprintf(stderr, "#");
# endif
}
# ifdef VERBOSE
fprintf(stderr, "]\n");
# endif
return 0;
}
#endif

156
oe-core/meta/recipes-devtools/qemu/qemu-helper/tunctl.c Normal file
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/* Copyright 2002 Jeff Dike
* Licensed under the GPL
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <linux/if_tun.h>
/* TUNSETGROUP appeared in 2.6.23 */
#ifndef TUNSETGROUP
#define TUNSETGROUP _IOW('T', 206, int)
#endif
static void Usage(char *name)
{
fprintf(stderr, "Create: %s [-b] [-u owner] [-g group] [-t device-name] "
"[-f tun-clone-device]\n", name);
fprintf(stderr, "Delete: %s -d device-name [-f tun-clone-device]\n\n",
name);
fprintf(stderr, "The default tun clone device is /dev/net/tun - some systems"
" use\n/dev/misc/net/tun instead\n\n");
fprintf(stderr, "-b will result in brief output (just the device name)\n");
exit(1);
}
int main(int argc, char **argv)
{
struct ifreq ifr;
struct passwd *pw;
struct group *gr;
uid_t owner = -1;
gid_t group = -1;
int tap_fd, opt, delete = 0, brief = 0;
char *tun = "", *file = "/dev/net/tun", *name = argv[0], *end;
while((opt = getopt(argc, argv, "bd:f:t:u:g:")) > 0){
switch(opt) {
case 'b':
brief = 1;
break;
case 'd':
delete = 1;
tun = optarg;
break;
case 'f':
file = optarg;
break;
case 'u':
pw = getpwnam(optarg);
if(pw != NULL){
owner = pw->pw_uid;
break;
}
owner = strtol(optarg, &end, 0);
if(*end != '\0'){
fprintf(stderr, "'%s' is neither a username nor a numeric uid.\n",
optarg);
Usage(name);
}
break;
case 'g':
gr = getgrnam(optarg);
if(gr != NULL){
group = gr->gr_gid;
break;
}
group = strtol(optarg, &end, 0);
if(*end != '\0'){
fprintf(stderr, "'%s' is neither a groupname nor a numeric group.\n",
optarg);
Usage(name);
}
break;
case 't':
tun = optarg;
break;
case 'h':
default:
Usage(name);
}
}
argv += optind;
argc -= optind;
if(argc > 0)
Usage(name);
if((tap_fd = open(file, O_RDWR)) < 0){
fprintf(stderr, "Failed to open '%s' : ", file);
perror("");
exit(1);
}
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
strncpy(ifr.ifr_name, tun, sizeof(ifr.ifr_name) - 1);
if(ioctl(tap_fd, TUNSETIFF, (void *) &ifr) < 0){
perror("TUNSETIFF");
exit(1);
}
if(delete){
if(ioctl(tap_fd, TUNSETPERSIST, 0) < 0){
perror("disabling TUNSETPERSIST");
exit(1);
}
printf("Set '%s' nonpersistent\n", ifr.ifr_name);
}
else {
/* emulate behaviour prior to TUNSETGROUP */
if(owner == -1 && group == -1) {
owner = geteuid();
}
if(owner != -1) {
if(ioctl(tap_fd, TUNSETOWNER, owner) < 0){
perror("TUNSETOWNER");
exit(1);
}
}
if(group != -1) {
if(ioctl(tap_fd, TUNSETGROUP, group) < 0){
perror("TUNSETGROUP");
exit(1);
}
}
if(ioctl(tap_fd, TUNSETPERSIST, 1) < 0){
perror("enabling TUNSETPERSIST");
exit(1);
}
if(brief)
printf("%s\n", ifr.ifr_name);
else {
printf("Set '%s' persistent and owned by", ifr.ifr_name);
if(owner != -1)
printf(" uid %d", owner);
if(group != -1)
printf(" gid %d", group);
printf("\n");
}
}
return(0);
}