*/
#include <errno.h>
+#include <env_flags.h>
#include <fcntl.h>
+#include <linux/stringify.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#define ENVSECTORS(i) envdevices[(i)].env_sectors
#define DEVTYPE(i) envdevices[(i)].mtd_type
-#define CONFIG_ENV_SIZE ENVSIZE(dev_current)
+#define CUR_ENVSIZE ENVSIZE(dev_current)
#define ENV_SIZE getenvsize()
/* obsolete_flag must be 0 to efficiently set it on NOR flash without erasing */
static unsigned char obsolete_flag = 0;
-
-#define XMK_STR(x) #x
-#define MK_STR(x) XMK_STR(x)
-
-static char default_environment[] = {
-#if defined(CONFIG_BOOTARGS)
- "bootargs=" CONFIG_BOOTARGS "\0"
-#endif
-#if defined(CONFIG_BOOTCOMMAND)
- "bootcmd=" CONFIG_BOOTCOMMAND "\0"
-#endif
-#if defined(CONFIG_RAMBOOTCOMMAND)
- "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
-#endif
-#if defined(CONFIG_NFSBOOTCOMMAND)
- "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
-#endif
-#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
- "bootdelay=" MK_STR (CONFIG_BOOTDELAY) "\0"
-#endif
-#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
- "baudrate=" MK_STR (CONFIG_BAUDRATE) "\0"
-#endif
-#ifdef CONFIG_LOADS_ECHO
- "loads_echo=" MK_STR (CONFIG_LOADS_ECHO) "\0"
-#endif
-#ifdef CONFIG_ETHADDR
- "ethaddr=" MK_STR (CONFIG_ETHADDR) "\0"
-#endif
-#ifdef CONFIG_ETH1ADDR
- "eth1addr=" MK_STR (CONFIG_ETH1ADDR) "\0"
-#endif
-#ifdef CONFIG_ETH2ADDR
- "eth2addr=" MK_STR (CONFIG_ETH2ADDR) "\0"
-#endif
-#ifdef CONFIG_ETH3ADDR
- "eth3addr=" MK_STR (CONFIG_ETH3ADDR) "\0"
-#endif
-#ifdef CONFIG_ETH4ADDR
- "eth4addr=" MK_STR (CONFIG_ETH4ADDR) "\0"
-#endif
-#ifdef CONFIG_ETH5ADDR
- "eth5addr=" MK_STR (CONFIG_ETH5ADDR) "\0"
-#endif
-#ifdef CONFIG_ETHPRIME
- "ethprime=" CONFIG_ETHPRIME "\0"
-#endif
-#ifdef CONFIG_IPADDR
- "ipaddr=" MK_STR (CONFIG_IPADDR) "\0"
-#endif
-#ifdef CONFIG_SERVERIP
- "serverip=" MK_STR (CONFIG_SERVERIP) "\0"
-#endif
-#ifdef CONFIG_SYS_AUTOLOAD
- "autoload=" CONFIG_SYS_AUTOLOAD "\0"
-#endif
-#ifdef CONFIG_ROOTPATH
- "rootpath=" MK_STR (CONFIG_ROOTPATH) "\0"
-#endif
-#ifdef CONFIG_GATEWAYIP
- "gatewayip=" MK_STR (CONFIG_GATEWAYIP) "\0"
-#endif
-#ifdef CONFIG_NETMASK
- "netmask=" MK_STR (CONFIG_NETMASK) "\0"
-#endif
-#ifdef CONFIG_HOSTNAME
- "hostname=" MK_STR (CONFIG_HOSTNAME) "\0"
-#endif
-#ifdef CONFIG_BOOTFILE
- "bootfile=" MK_STR (CONFIG_BOOTFILE) "\0"
-#endif
-#ifdef CONFIG_LOADADDR
- "loadaddr=" MK_STR (CONFIG_LOADADDR) "\0"
-#endif
-#ifdef CONFIG_PREBOOT
- "preboot=" CONFIG_PREBOOT "\0"
-#endif
-#ifdef CONFIG_CLOCKS_IN_MHZ
- "clocks_in_mhz=" "1" "\0"
-#endif
-#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
- "pcidelay=" MK_STR (CONFIG_PCI_BOOTDELAY) "\0"
-#endif
-#ifdef CONFIG_EXTRA_ENV_SETTINGS
- CONFIG_EXTRA_ENV_SETTINGS
-#endif
- "\0" /* Termimate struct environment data with 2 NULs */
-};
+#define DEFAULT_ENV_INSTANCE_STATIC
+#include <env_default.h>
static int flash_io (int mode);
static char *envmatch (char * s1, char * s2);
#endif
static inline ulong getenvsize (void)
{
- ulong rc = CONFIG_ENV_SIZE - sizeof (long);
+ ulong rc = CUR_ENVSIZE - sizeof(long);
if (HaveRedundEnv)
rc -= sizeof (char);
{
char *env, *nxt;
- if (fw_env_open())
- return NULL;
-
for (env = environment.data; *env; env = nxt + 1) {
char *val;
return NULL;
}
+/*
+ * Search the default environment for a variable.
+ * Return the value, if found, or NULL, if not found.
+ */
+char *fw_getdefenv(char *name)
+{
+ char *env, *nxt;
+
+ for (env = default_environment; *env; env = nxt + 1) {
+ char *val;
+
+ for (nxt = env; *nxt; ++nxt) {
+ if (nxt >= &default_environment[ENV_SIZE]) {
+ fprintf(stderr, "## Error: "
+ "default environment not terminated\n");
+ return NULL;
+ }
+ }
+ val = envmatch(name, env);
+ if (!val)
+ continue;
+ return val;
+ }
+ return NULL;
+}
+
/*
* Print the current definition of one, or more, or all
* environment variables
int len;
char *env, *nxt;
char *oldval = NULL;
+ int deleting, creating, overwriting;
/*
* search if variable with this name already exists
break;
}
- /*
- * Delete any existing definition
- */
- if (oldval) {
- /*
- * Ethernet Address and serial# can be set only once
- */
- if ((strcmp (name, "ethaddr") == 0) ||
- (strcmp (name, "serial#") == 0)) {
- fprintf (stderr, "Can't overwrite \"%s\"\n", name);
+ deleting = (oldval && !(value && strlen(value)));
+ creating = (!oldval && (value && strlen(value)));
+ overwriting = (oldval && (value && strlen(value)));
+
+ /* check for permission */
+ if (deleting) {
+ if (env_flags_validate_varaccess(name,
+ ENV_FLAGS_VARACCESS_PREVENT_DELETE)) {
+ printf("Can't delete \"%s\"\n", name);
+ errno = EROFS;
+ return -1;
+ }
+ } else if (overwriting) {
+ if (env_flags_validate_varaccess(name,
+ ENV_FLAGS_VARACCESS_PREVENT_OVERWR)) {
+ printf("Can't overwrite \"%s\"\n", name);
+ errno = EROFS;
+ return -1;
+ } else if (env_flags_validate_varaccess(name,
+ ENV_FLAGS_VARACCESS_PREVENT_NONDEF_OVERWR)) {
+ const char *defval = fw_getdefenv(name);
+
+ if (defval == NULL)
+ defval = "";
+ if (strcmp(oldval, defval)
+ != 0) {
+ printf("Can't overwrite \"%s\"\n", name);
+ errno = EROFS;
+ return -1;
+ }
+ }
+ } else if (creating) {
+ if (env_flags_validate_varaccess(name,
+ ENV_FLAGS_VARACCESS_PREVENT_CREATE)) {
+ printf("Can't create \"%s\"\n", name);
errno = EROFS;
return -1;
}
+ } else
+ /* Nothing to do */
+ return 0;
+ if (deleting || overwriting) {
if (*++nxt == '\0') {
*env = '\0';
} else {
++env;
/*
* Overflow when:
- * "name" + "=" + "val" +"\0\0" > CONFIG_ENV_SIZE - (env-environment)
+ * "name" + "=" + "val" +"\0\0" > CUR_ENVSIZE - (env-environment)
*/
len = strlen (name) + 2;
/* add '=' for first arg, ' ' for all others */
*/
int fw_setenv(int argc, char *argv[])
{
- int i, len;
+ int i;
+ size_t len;
char *name;
char *value = NULL;
- char *tmpval = NULL;
if (argc < 2) {
errno = EINVAL;
name = argv[1];
- len = strlen(name) + 2;
- for (i = 2; i < argc; ++i)
- len += strlen(argv[i]) + 1;
+ if (env_flags_validate_env_set_params(argc, argv) < 0)
+ return 1;
- /* Allocate enough place to the data string */
+ len = 0;
for (i = 2; i < argc; ++i) {
char *val = argv[i];
+ size_t val_len = strlen(val);
+
+ if (value)
+ value[len - 1] = ' ';
+ value = realloc(value, len + val_len + 1);
if (!value) {
- value = (char *)malloc(len - strlen(name));
- if (!value) {
- fprintf(stderr,
- "Cannot malloc %u bytes: %s\n",
- len - strlen(name), strerror(errno));
- return -1;
- }
- memset(value, 0, len - strlen(name));
- tmpval = value;
+ fprintf(stderr,
+ "Cannot malloc %zu bytes: %s\n",
+ len, strerror(errno));
+ return -1;
}
- if (i != 2)
- *tmpval++ = ' ';
- while (*val != '\0')
- *tmpval++ = *val++;
+
+ memcpy(value + len, val, val_len);
+ len += val_len;
+ value[len++] = '\0';
}
fw_env_write(name, value);
- if (value)
- free(value);
+ free(value);
return fw_env_close();
}
name, val ? val : " removed");
#endif
+ if (env_flags_validate_type(name, val) < 0) {
+ ret = -1;
+ break;
+ }
+
/*
* If there is an error setting a variable,
* try to save the environment and returns an error
MEMGETBADBLOCK needs 64 bits */
int rc;
- /*
- * Start of the first block to be read, relies on the fact, that
- * erase sector size is always a power of 2
- */
- blockstart = offset & ~(DEVESIZE (dev) - 1);
+ blockstart = (offset / DEVESIZE (dev)) * DEVESIZE (dev);
/* Offset inside a block */
block_seek = offset - blockstart;
* To calculate the top of the range, we have to use the
* global DEVOFFSET (dev), which can be different from offset
*/
- top_of_range = (DEVOFFSET (dev) & ~(blocklen - 1)) +
- ENVSECTORS (dev) * blocklen;
+ top_of_range = ((DEVOFFSET(dev) / blocklen) +
+ ENVSECTORS (dev)) * blocklen;
/* Limit to one block for the first read */
if (readlen > blocklen - block_seek)
return -1;
}
#ifdef DEBUG
- fprintf (stderr, "Read 0x%x bytes at 0x%llx\n",
- rc, blockstart + block_seek);
+ fprintf(stderr, "Read 0x%x bytes at 0x%llx on %s\n",
+ rc, blockstart + block_seek, DEVNAME(dev));
#endif
processed += readlen;
readlen = min (blocklen, count - processed);
}
/*
- * Write count bytes at offset, but stay within ENVSETCORS (dev) sectors of
- * DEVOFFSET (dev). Similar to the read case above, on NOR we erase and write
- * the whole data at once.
+ * Write count bytes at offset, but stay within ENVSECTORS (dev) sectors of
+ * DEVOFFSET (dev). Similar to the read case above, on NOR and dataflash we
+ * erase and write the whole data at once.
*/
static int flash_write_buf (int dev, int fd, void *buf, size_t count,
off_t offset, uint8_t mtd_type)
size_t erasesize; /* erase / write length - one block on NAND,
whole area on NOR */
size_t processed = 0; /* progress counter */
- size_t write_total; /* total size to actually write - excludinig
+ size_t write_total; /* total size to actually write - excluding
bad blocks */
off_t erase_offset; /* offset to the first erase block (aligned)
below offset */
blocklen = DEVESIZE (dev);
- /* Erase sector size is always a power of 2 */
- top_of_range = (DEVOFFSET (dev) & ~(blocklen - 1)) +
- ENVSECTORS (dev) * blocklen;
+ top_of_range = ((DEVOFFSET(dev) / blocklen) +
+ ENVSECTORS (dev)) * blocklen;
- erase_offset = offset & ~(blocklen - 1);
+ erase_offset = (offset / blocklen) * blocklen;
/* Maximum area we may use */
erase_len = top_of_range - erase_offset;
* to the start of the data, then count bytes of data, and to the
* end of the block
*/
- write_total = (block_seek + count + blocklen - 1) & ~(blocklen - 1);
+ write_total = ((block_seek + count + blocklen - 1) /
+ blocklen) * blocklen;
/*
* Support data anywhere within erase sectors: read out the complete
data = malloc (erase_len);
if (!data) {
fprintf (stderr,
- "Cannot malloc %u bytes: %s\n",
+ "Cannot malloc %zu bytes: %s\n",
erase_len, strerror (errno));
return -1;
}
if (write_total != rc)
return -1;
+#ifdef DEBUG
+ fprintf(stderr, "Preserving data ");
+ if (block_seek != 0)
+ fprintf(stderr, "0x%x - 0x%lx", 0, block_seek - 1);
+ if (block_seek + count != write_total) {
+ if (block_seek != 0)
+ fprintf(stderr, " and ");
+ fprintf(stderr, "0x%lx - 0x%x",
+ block_seek + count, write_total - 1);
+ }
+ fprintf(stderr, "\n");
+#endif
/* Overwrite the old environment */
memcpy (data + block_seek, buf, count);
} else {
erase.length = erasesize;
- /* This only runs once on NOR flash */
+ /* This only runs once on NOR flash and SPI-dataflash */
while (processed < write_total) {
rc = flash_bad_block (fd, mtd_type, &blockstart);
if (rc < 0) /* block test failed */
erase.start = blockstart;
ioctl (fd, MEMUNLOCK, &erase);
- if (ioctl (fd, MEMERASE, &erase) != 0) {
- fprintf (stderr, "MTD erase error on %s: %s\n",
- DEVNAME (dev),
- strerror (errno));
- return -1;
- }
+ /* Dataflash does not need an explicit erase cycle */
+ if (mtd_type != MTD_DATAFLASH)
+ if (ioctl (fd, MEMERASE, &erase) != 0) {
+ fprintf (stderr, "MTD erase error on %s: %s\n",
+ DEVNAME (dev),
+ strerror (errno));
+ return -1;
+ }
if (lseek (fd, blockstart, SEEK_SET) == -1) {
fprintf (stderr,
}
#ifdef DEBUG
- printf ("Write 0x%x bytes at 0x%llx\n", erasesize, blockstart);
+ fprintf(stderr, "Write 0x%x bytes at 0x%llx\n", erasesize,
+ blockstart);
#endif
if (write (fd, data + processed, erasesize) != erasesize) {
fprintf (stderr, "Write error on %s: %s\n",
}
#ifdef DEBUG
- printf ("Writing new environment at 0x%lx on %s\n",
+ fprintf(stderr, "Writing new environment at 0x%lx on %s\n",
DEVOFFSET (dev_target), DEVNAME (dev_target));
#endif
- rc = flash_write_buf (dev_target, fd_target, environment.image,
- CONFIG_ENV_SIZE, DEVOFFSET (dev_target),
+ rc = flash_write_buf(dev_target, fd_target, environment.image,
+ CUR_ENVSIZE, DEVOFFSET(dev_target),
DEVTYPE(dev_target));
if (rc < 0)
return rc;
off_t offset = DEVOFFSET (dev_current) +
offsetof (struct env_image_redundant, flags);
#ifdef DEBUG
- printf ("Setting obsolete flag in environment at 0x%lx on %s\n",
+ fprintf(stderr,
+ "Setting obsolete flag in environment at 0x%lx on %s\n",
DEVOFFSET (dev_current), DEVNAME (dev_current));
#endif
flash_flag_obsolete (dev_current, fd_current, offset);
return -1;
}
- if (mtdinfo.type != MTD_NORFLASH && mtdinfo.type != MTD_NANDFLASH) {
+ if (mtdinfo.type != MTD_NORFLASH &&
+ mtdinfo.type != MTD_NANDFLASH &&
+ mtdinfo.type != MTD_DATAFLASH) {
fprintf (stderr, "Unsupported flash type %u\n", mtdinfo.type);
return -1;
}
DEVTYPE(dev_current) = mtdinfo.type;
- rc = flash_read_buf (dev_current, fd, environment.image, CONFIG_ENV_SIZE,
+ rc = flash_read_buf(dev_current, fd, environment.image, CUR_ENVSIZE,
DEVOFFSET (dev_current), mtdinfo.type);
- return (rc != CONFIG_ENV_SIZE) ? -1 : 0;
+ return (rc != CUR_ENVSIZE) ? -1 : 0;
}
static int flash_io (int mode)
static char *envmatch (char * s1, char * s2)
{
+ if (s1 == NULL || s2 == NULL)
+ return NULL;
while (*s1 == *s2++)
if (*s1++ == '=')
int fw_env_open(void)
{
int crc0, crc0_ok;
- char flag0;
+ unsigned char flag0;
void *addr0;
int crc1, crc1_ok;
- char flag1;
+ unsigned char flag1;
void *addr1;
struct env_image_single *single;
if (parse_config ()) /* should fill envdevices */
return -1;
- addr0 = calloc (1, CONFIG_ENV_SIZE);
+ addr0 = calloc(1, CUR_ENVSIZE);
if (addr0 == NULL) {
- fprintf (stderr,
+ fprintf(stderr,
"Not enough memory for environment (%ld bytes)\n",
- CONFIG_ENV_SIZE);
+ CUR_ENVSIZE);
return -1;
}
flag0 = *environment.flags;
dev_current = 1;
- addr1 = calloc (1, CONFIG_ENV_SIZE);
+ addr1 = calloc(1, CUR_ENVSIZE);
if (addr1 == NULL) {
- fprintf (stderr,
+ fprintf(stderr,
"Not enough memory for environment (%ld bytes)\n",
- CONFIG_ENV_SIZE);
+ CUR_ENVSIZE);
return -1;
}
redundant = addr1;
} else if (DEVTYPE(dev_current) == MTD_NANDFLASH &&
DEVTYPE(!dev_current) == MTD_NANDFLASH) {
environment.flag_scheme = FLAG_INCREMENTAL;
+ } else if (DEVTYPE(dev_current) == MTD_DATAFLASH &&
+ DEVTYPE(!dev_current) == MTD_DATAFLASH) {
+ environment.flag_scheme = FLAG_BOOLEAN;
} else {
fprintf (stderr, "Incompatible flash types!\n");
return -1;
}
break;
case FLAG_INCREMENTAL:
- if ((flag0 == 255 && flag1 == 0) ||
- flag1 > flag0)
+ if (flag0 == 255 && flag1 == 0)
dev_current = 1;
else if ((flag1 == 255 && flag0 == 0) ||
- flag0 > flag1)
- dev_current = 0;
- else /* flags are equal - almost impossible */
+ flag0 >= flag1)
dev_current = 0;
+ else /* flag1 > flag0 */
+ dev_current = 1;
break;
default:
fprintf (stderr, "Unknown flag scheme %u \n",
/* Other pointers are already set */
free (addr1);
}
+#ifdef DEBUG
+ fprintf(stderr, "Selected env in %s\n", DEVNAME(dev_current));
+#endif
}
return 0;
}
strcpy (DEVNAME (0), DEVICE1_NAME);
DEVOFFSET (0) = DEVICE1_OFFSET;
ENVSIZE (0) = ENV1_SIZE;
+ /* Default values are: erase-size=env-size, #sectors=1 */
+ DEVESIZE (0) = ENVSIZE (0);
+ ENVSECTORS (0) = 1;
+#ifdef DEVICE1_ESIZE
DEVESIZE (0) = DEVICE1_ESIZE;
+#endif
+#ifdef DEVICE1_ENVSECTORS
ENVSECTORS (0) = DEVICE1_ENVSECTORS;
+#endif
+
#ifdef HAVE_REDUND
strcpy (DEVNAME (1), DEVICE2_NAME);
DEVOFFSET (1) = DEVICE2_OFFSET;
ENVSIZE (1) = ENV2_SIZE;
+ /* Default values are: erase-size=env-size, #sectors=1 */
+ DEVESIZE (1) = ENVSIZE (1);
+ ENVSECTORS (1) = 1;
+#ifdef DEVICE2_ESIZE
DEVESIZE (1) = DEVICE2_ESIZE;
+#endif
+#ifdef DEVICE2_ENVSECTORS
ENVSECTORS (1) = DEVICE2_ENVSECTORS;
+#endif
HaveRedundEnv = 1;
#endif
#endif
&DEVESIZE (i),
&ENVSECTORS (i));
- if (rc < 4)
+ if (rc < 3)
continue;
+ if (rc < 4)
+ /* Assume the erase size is the same as the env-size */
+ DEVESIZE(i) = ENVSIZE(i);
+
if (rc < 5)
/* Default - 1 sector */
ENVSECTORS (i) = 1;
projects / karo-tx-uboot.git / blobdiff