diff options
Diffstat (limited to 'package/unvram/src')
| -rw-r--r-- | package/unvram/src/Makefile | 33 | ||||
| -rw-r--r-- | package/unvram/src/cli.c | 233 | ||||
| -rw-r--r-- | package/unvram/src/crc.c | 69 | ||||
| -rw-r--r-- | package/unvram/src/nvram.c | 531 | ||||
| -rw-r--r-- | package/unvram/src/nvram.h | 123 | ||||
| -rw-r--r-- | package/unvram/src/sdinitvals.h | 30 |
6 files changed, 0 insertions, 1019 deletions
diff --git a/package/unvram/src/Makefile b/package/unvram/src/Makefile deleted file mode 100644 index 4872728ba..000000000 --- a/package/unvram/src/Makefile +++ /dev/null @@ -1,33 +0,0 @@ -CLI_FILENAME = nvram - -LIB_VERMAJOR = 0 -LIB_VERMINOR = 1 -LIB_FILENAME = libnvram.so - -LIB_CFLAGS = $(CFLAGS) -shared -fPIC -LIB_LDFLAGS = $(LDFLAGS) -Wl,-soname,$(LIB_FILENAME).$(LIB_VERMAJOR).$(LIB_VERMINOR) - -CLI_CFLAGS = $(CFLAGS) -CLI_LDFLAGS = $(LDFLAGS) - -CLI_OBJ = cli.o -LIB_OBJ = crc.o nvram.o - -all: cli libnvram - -cli: libnvram - $(CC) $(CLI_CFLAGS) -c -o cli.o cli.c - $(CC) -o $(CLI_FILENAME) $(CLI_LDFLAGS) $(CLI_OBJ) \ - $(LIB_FILENAME).$(LIB_VERMAJOR).$(LIB_VERMINOR) - -cli.o: cli.c - $(CC) $(CLI_CFLAGS) -c -o $@ $< - -libnvram: - $(CC) $(LIB_CFLAGS) -c -o crc.o crc.c - $(CC) $(LIB_CFLAGS) -c -o nvram.o nvram.c - $(CC) $(LIB_CFLAGS) $(LIB_LDFLAGS) \ - -o $(LIB_FILENAME).$(LIB_VERMAJOR).$(LIB_VERMINOR) $(LIB_OBJ) - -clean: - rm -f $(CLI_FILENAME) $(LIB_FILENAME)* *.o diff --git a/package/unvram/src/cli.c b/package/unvram/src/cli.c deleted file mode 100644 index 953910cd6..000000000 --- a/package/unvram/src/cli.c +++ /dev/null @@ -1,233 +0,0 @@ -/* - * Command line interface for libnvram - * - * Copyright 2009, Jo-Philipp Wich <xm@subsignal.org> - * - * This program 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 2 - * of the License, or (at your option) any later version. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * - * The libnvram code is based on Broadcom code for Linux 2.4.x . - * - */ - -#include "nvram.h" - - -static nvram_handle_t * nvram_open_rdonly(void) -{ - const char *file = nvram_find_staging(); - - if( file == NULL ) - file = nvram_find_mtd(); - - if( file != NULL ) - return nvram_open(file, NVRAM_RO); - - return NULL; -} - -static nvram_handle_t * nvram_open_staging(void) -{ - if( nvram_find_staging() != NULL || nvram_to_staging() == 0 ) - return nvram_open(NVRAM_STAGING, NVRAM_RW); - - return NULL; -} - -static int do_show(nvram_handle_t *nvram) -{ - nvram_tuple_t *t; - int stat = 1; - - if( (t = nvram_getall(nvram)) != NULL ) - { - while( t ) - { - printf("%s=%s\n", t->name, t->value); - t = t->next; - } - - stat = 0; - } - - return stat; -} - -static int do_get(nvram_handle_t *nvram, const char *var) -{ - const char *val; - int stat = 1; - - if( (val = nvram_get(nvram, var)) != NULL ) - { - printf("%s\n", val); - stat = 0; - } - - return stat; -} - -static int do_unset(nvram_handle_t *nvram, const char *var) -{ - return nvram_unset(nvram, var); -} - -static int do_set(nvram_handle_t *nvram, const char *pair) -{ - char *val = strstr(pair, "="); - char var[strlen(pair)]; - int stat = 1; - - if( val != NULL ) - { - memset(var, 0, sizeof(var)); - strncpy(var, pair, (int)(val-pair)); - stat = nvram_set(nvram, var, (char *)(val + 1)); - } - - return stat; -} - -static int do_info(nvram_handle_t *nvram) -{ - nvram_header_t *hdr = nvram_header(nvram); - - /* CRC8 over the last 11 bytes of the header and data bytes */ - uint8_t crc = hndcrc8((unsigned char *) &hdr[0] + NVRAM_CRC_START_POSITION, - hdr->len - NVRAM_CRC_START_POSITION, 0xff); - - /* Show info */ - printf("Magic: 0x%08X\n", hdr->magic); - printf("Length: 0x%08X\n", hdr->len); - - printf("CRC8: 0x%02X (calculated: 0x%02X)\n", - hdr->crc_ver_init & 0xFF, crc); - - printf("Version: 0x%02X\n", (hdr->crc_ver_init >> 8) & 0xFF); - printf("SDRAM init: 0x%04X\n", (hdr->crc_ver_init >> 16) & 0xFFFF); - printf("SDRAM config: 0x%04X\n", hdr->config_refresh & 0xFFFF); - printf("SDRAM refresh: 0x%04X\n", (hdr->config_refresh >> 16) & 0xFFFF); - printf("NCDL values: 0x%08X\n\n", hdr->config_ncdl); - - printf("%i bytes used / %i bytes available (%.2f%%)\n", - hdr->len, NVRAM_SPACE - hdr->len, - (100.00 / (double)NVRAM_SPACE) * (double)hdr->len); - - return 0; -} - - -int main( int argc, const char *argv[] ) -{ - nvram_handle_t *nvram; - int commit = 0; - int write = 0; - int stat = 1; - int done = 0; - int i; - - /* Ugly... iterate over arguments to see whether we can expect a write */ - for( i = 1; i < argc; i++ ) - if( ( !strcmp(argv[i], "set") && ++i < argc ) || - ( !strcmp(argv[i], "unset") && ++i < argc ) || - !strcmp(argv[i], "commit") ) - { - write = 1; - break; - } - - - nvram = write ? nvram_open_staging() : nvram_open_rdonly(); - - if( nvram != NULL && argc > 1 ) - { - for( i = 1; i < argc; i++ ) - { - if( !strcmp(argv[i], "show") ) - { - stat = do_show(nvram); - done++; - } - else if( !strcmp(argv[i], "info") ) - { - stat = do_info(nvram); - done++; - } - else if( !strcmp(argv[i], "get") && ++i < argc ) - { - stat = do_get(nvram, argv[i]); - done++; - } - else if( !strcmp(argv[i], "unset") && ++i < argc ) - { - stat = do_unset(nvram, argv[i]); - done++; - } - else if( !strcmp(argv[i], "set") && ++i < argc ) - { - stat = do_set(nvram, argv[i]); - done++; - } - else if( !strcmp(argv[i], "commit") ) - { - commit = 1; - done++; - } - else - { - fprintf(stderr, "Unknown option '%s' !\n", argv[i]); - done = 0; - break; - } - } - - if( write ) - stat = nvram_commit(nvram); - - nvram_close(nvram); - - if( commit ) - stat = staging_to_nvram(); - } - - if( !nvram ) - { - fprintf(stderr, - "Could not open nvram! Possible reasons are:\n" - " - No device found (/proc not mounted or no nvram present)\n" - " - Insufficient permissions to open mtd device\n" - " - Insufficient memory to complete operation\n" - " - Memory mapping failed or not supported\n" - ); - - stat = 1; - } - else if( !done ) - { - fprintf(stderr, - "Usage:\n" - " nvram show\n" - " nvram info\n" - " nvram get variable\n" - " nvram set variable=value [set ...]\n" - " nvram unset variable [unset ...]\n" - " nvram commit\n" - ); - - stat = 1; - } - - return stat; -} diff --git a/package/unvram/src/crc.c b/package/unvram/src/crc.c deleted file mode 100644 index 22a36652a..000000000 --- a/package/unvram/src/crc.c +++ /dev/null @@ -1,69 +0,0 @@ -#include "nvram.h" - -/******************************************************************************* - * crc8 - * - * Computes a crc8 over the input data using the polynomial: - * - * x^8 + x^7 +x^6 + x^4 + x^2 + 1 - * - * The caller provides the initial value (either CRC8_INIT_VALUE - * or the previous returned value) to allow for processing of - * discontiguous blocks of data. When generating the CRC the - * caller is responsible for complementing the final return value - * and inserting it into the byte stream. When checking, a final - * return value of CRC8_GOOD_VALUE indicates a valid CRC. - * - * Reference: Dallas Semiconductor Application Note 27 - * Williams, Ross N., "A Painless Guide to CRC Error Detection Algorithms", - * ver 3, Aug 1993, ross@guest.adelaide.edu.au, Rocksoft Pty Ltd., - * ftp://ftp.rocksoft.com/clients/rocksoft/papers/crc_v3.txt - * - * **************************************************************************** - */ - -static const uint8_t crc8_table[256] = { - 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, - 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, - 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, - 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, - 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, - 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, - 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, - 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, - 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, - 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, - 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, - 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, - 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, - 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, - 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, - 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, - 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, - 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, - 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, - 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, - 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, - 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, - 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, - 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, - 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, - 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, - 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, - 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, - 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, - 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, - 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, - 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F -}; - -uint8_t hndcrc8 ( - uint8_t * pdata, /* pointer to array of data to process */ - uint32_t nbytes, /* number of input data bytes to process */ - uint8_t crc /* either CRC8_INIT_VALUE or previous return value */ -) { - while (nbytes-- > 0) - crc = crc8_table[(crc ^ *pdata++) & 0xff]; - - return crc; -} diff --git a/package/unvram/src/nvram.c b/package/unvram/src/nvram.c deleted file mode 100644 index 78baa9431..000000000 --- a/package/unvram/src/nvram.c +++ /dev/null @@ -1,531 +0,0 @@ -/* - * NVRAM variable manipulation (common) - * - * Copyright 2004, Broadcom Corporation - * Copyright 2009, OpenWrt.org - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. - * - */ - -#include "nvram.h" - -#define TRACE(msg) \ - printf("%s(%i) in %s(): %s\n", \ - __FILE__, __LINE__, __FUNCTION__, msg ? msg : "?") - -size_t nvram_erase_size = 0; - - -/* - * -- Helper functions -- - */ - -/* String hash */ -static uint32_t hash(const char *s) -{ - uint32_t hash = 0; - - while (*s) - hash = 31 * hash + *s++; - - return hash; -} - -/* Free all tuples. */ -static void _nvram_free(nvram_handle_t *h) -{ - uint32_t i; - nvram_tuple_t *t, *next; - - /* Free hash table */ - for (i = 0; i < NVRAM_ARRAYSIZE(h->nvram_hash); i++) { - for (t = h->nvram_hash[i]; t; t = next) { - next = t->next; - free(t); - } - h->nvram_hash[i] = NULL; - } - - /* Free dead table */ - for (t = h->nvram_dead; t; t = next) { - next = t->next; - free(t); - } - - h->nvram_dead = NULL; -} - -/* (Re)allocate NVRAM tuples. */ -static nvram_tuple_t * _nvram_realloc( nvram_handle_t *h, nvram_tuple_t *t, - const char *name, const char *value ) -{ - if ((strlen(value) + 1) > NVRAM_SPACE) - return NULL; - - if (!t) { - if (!(t = malloc(sizeof(nvram_tuple_t) + strlen(name) + 1))) - return NULL; - - /* Copy name */ - t->name = (char *) &t[1]; - strcpy(t->name, name); - - t->value = NULL; - } - - /* Copy value */ - if (!t->value || strcmp(t->value, value)) - { - if(!(t->value = (char *) realloc(t->value, strlen(value)+1))) - return NULL; - - strcpy(t->value, value); - t->value[strlen(value)] = '\0'; - } - - return t; -} - -/* (Re)initialize the hash table. */ -static int _nvram_rehash(nvram_handle_t *h) -{ - nvram_header_t *header = nvram_header(h); - char buf[] = "0xXXXXXXXX", *name, *value, *eq; - - /* (Re)initialize hash table */ - _nvram_free(h); - - /* Parse and set "name=value\0 ... \0\0" */ - name = (char *) &header[1]; - - for (; *name; name = value + strlen(value) + 1) { - if (!(eq = strchr(name, '='))) - break; - *eq = '\0'; - value = eq + 1; - nvram_set(h, name, value); - *eq = '='; - } - - /* Set special SDRAM parameters */ - if (!nvram_get(h, "sdram_init")) { - sprintf(buf, "0x%04X", (uint16_t)(header->crc_ver_init >> 16)); - nvram_set(h, "sdram_init", buf); - } - if (!nvram_get(h, "sdram_config")) { - sprintf(buf, "0x%04X", (uint16_t)(header->config_refresh & 0xffff)); - nvram_set(h, "sdram_config", buf); - } - if (!nvram_get(h, "sdram_refresh")) { - sprintf(buf, "0x%04X", - (uint16_t)((header->config_refresh >> 16) & 0xffff)); - nvram_set(h, "sdram_refresh", buf); - } - if (!nvram_get(h, "sdram_ncdl")) { - sprintf(buf, "0x%08X", header->config_ncdl); - nvram_set(h, "sdram_ncdl", buf); - } - - return 0; -} - - -/* - * -- Public functions -- - */ - -/* Get nvram header. */ -nvram_header_t * nvram_header(nvram_handle_t *h) -{ - return (nvram_header_t *) &h->mmap[NVRAM_START(nvram_erase_size)]; -} - -/* Get the value of an NVRAM variable. */ -char * nvram_get(nvram_handle_t *h, const char *name) -{ - uint32_t i; - nvram_tuple_t *t; - char *value; - - if (!name) - return NULL; - - /* Hash the name */ - i = hash(name) % NVRAM_ARRAYSIZE(h->nvram_hash); - - /* Find the associated tuple in the hash table */ - for (t = h->nvram_hash[i]; t && strcmp(t->name, name); t = t->next); - - value = t ? t->value : NULL; - - return value; -} - -/* Set the value of an NVRAM variable. */ -int nvram_set(nvram_handle_t *h, const char *name, const char *value) -{ - uint32_t i; - nvram_tuple_t *t, *u, **prev; - - /* Hash the name */ - i = hash(name) % NVRAM_ARRAYSIZE(h->nvram_hash); - - /* Find the associated tuple in the hash table */ - for (prev = &h->nvram_hash[i], t = *prev; - t && strcmp(t->name, name); prev = &t->next, t = *prev); - - /* (Re)allocate tuple */ - if (!(u = _nvram_realloc(h, t, name, value))) - return -12; /* -ENOMEM */ - - /* Value reallocated */ - if (t && t == u) - return 0; - - /* Move old tuple to the dead table */ - if (t) { - *prev = t->next; - t->next = h->nvram_dead; - h->nvram_dead = t; - } - - /* Add new tuple to the hash table */ - u->next = h->nvram_hash[i]; - h->nvram_hash[i] = u; - - return 0; -} - -/* Unset the value of an NVRAM variable. */ -int nvram_unset(nvram_handle_t *h, const char *name) -{ - uint32_t i; - nvram_tuple_t *t, **prev; - - if (!name) - return 0; - - /* Hash the name */ - i = hash(name) % NVRAM_ARRAYSIZE(h->nvram_hash); - - /* Find the associated tuple in the hash table */ - for (prev = &h->nvram_hash[i], t = *prev; - t && strcmp(t->name, name); prev = &t->next, t = *prev); - - /* Move it to the dead table */ - if (t) { - *prev = t->next; - t->next = h->nvram_dead; - h->nvram_dead = t; - } - - return 0; -} - -/* Get all NVRAM variables. */ -nvram_tuple_t * nvram_getall(nvram_handle_t *h) -{ - int i; - nvram_tuple_t *t, *l, *x; - - l = NULL; - - for (i = 0; i < NVRAM_ARRAYSIZE(h->nvram_hash); i++) { - for (t = h->nvram_hash[i]; t; t = t->next) { - if( (x = (nvram_tuple_t *) malloc(sizeof(nvram_tuple_t))) != NULL ) - { - x->name = t->name; - x->value = t->value; - x->next = l; - l = x; - } - else - { - break; - } - } - } - - return l; -} - -/* Regenerate NVRAM. */ -int nvram_commit(nvram_handle_t *h) -{ - nvram_header_t *header = nvram_header(h); - char *init, *config, *refresh, *ncdl; - char *ptr, *end; - int i; - nvram_tuple_t *t; - nvram_header_t tmp; - uint8_t crc; - - /* Regenerate header */ - header->magic = NVRAM_MAGIC; - header->crc_ver_init = (NVRAM_VERSION << 8); - if (!(init = nvram_get(h, "sdram_init")) || - !(config = nvram_get(h, "sdram_config")) || - !(refresh = nvram_get(h, "sdram_refresh")) || - !(ncdl = nvram_get(h, "sdram_ncdl"))) { - header->crc_ver_init |= SDRAM_INIT << 16; - header->config_refresh = SDRAM_CONFIG; - header->config_refresh |= SDRAM_REFRESH << 16; - header->config_ncdl = 0; - } else { - header->crc_ver_init |= (strtoul(init, NULL, 0) & 0xffff) << 16; - header->config_refresh = strtoul(config, NULL, 0) & 0xffff; - header->config_refresh |= (strtoul(refresh, NULL, 0) & 0xffff) << 16; - header->config_ncdl = strtoul(ncdl, NULL, 0); - } - - /* Clear data area */ - ptr = (char *) header + sizeof(nvram_header_t); - memset(ptr, 0xFF, NVRAM_SPACE - sizeof(nvram_header_t)); - memset(&tmp, 0, sizeof(nvram_header_t)); - - /* Leave space for a double NUL at the end */ - end = (char *) header + NVRAM_SPACE - 2; - - /* Write out all tuples */ - for (i = 0; i < NVRAM_ARRAYSIZE(h->nvram_hash); i++) { - for (t = h->nvram_hash[i]; t; t = t->next) { - if ((ptr + strlen(t->name) + 1 + strlen(t->value) + 1) > end) - break; - ptr += sprintf(ptr, "%s=%s", t->name, t->value) + 1; - } - } - - /* End with a double NULL and pad to 4 bytes */ - *ptr = '\0'; - ptr++; - - if( (int)ptr % 4 ) - memset(ptr, 0, 4 - ((int)ptr % 4)); - - ptr++; - - /* Set new length */ - header->len = NVRAM_ROUNDUP(ptr - (char *) header, 4); - - /* Little-endian CRC8 over the last 11 bytes of the header */ - tmp.crc_ver_init = header->crc_ver_init; - tmp.config_refresh = header->config_refresh; - tmp.config_ncdl = header->config_ncdl; - crc = hndcrc8((unsigned char *) &tmp + NVRAM_CRC_START_POSITION, - sizeof(nvram_header_t) - NVRAM_CRC_START_POSITION, 0xff); - - /* Continue CRC8 over data bytes */ - crc = hndcrc8((unsigned char *) &header[0] + sizeof(nvram_header_t), - header->len - sizeof(nvram_header_t), crc); - - /* Set new CRC8 */ - header->crc_ver_init |= crc; - - /* Write out */ - msync(h->mmap, h->length, MS_SYNC); - fsync(h->fd); - - /* Reinitialize hash table */ - return _nvram_rehash(h); -} - -/* Open NVRAM and obtain a handle. */ -nvram_handle_t * nvram_open(const char *file, int rdonly) -{ - int fd; - char *mtd = NULL; - nvram_handle_t *h; - nvram_header_t *header; - - /* If erase size or file are undefined then try to define them */ - if( (nvram_erase_size == 0) || (file == NULL) ) - { - /* Finding the mtd will set the appropriate erase size */ - if( (mtd = nvram_find_mtd()) == NULL || nvram_erase_size == 0 ) - { - free(mtd); - return NULL; - } - } - - if( (fd = open(file ? file : mtd, O_RDWR)) > -1 ) - { - char *mmap_area = (char *) mmap( - NULL, nvram_erase_size, PROT_READ | PROT_WRITE, - ( rdonly == NVRAM_RO ) ? MAP_PRIVATE : MAP_SHARED, fd, 0); - - if( mmap_area != MAP_FAILED ) - { - memset(mmap_area, 0xFF, NVRAM_START(nvram_erase_size)); - - if((h = (nvram_handle_t *) malloc(sizeof(nvram_handle_t))) != NULL) - { - memset(h, 0, sizeof(nvram_handle_t)); - - h->fd = fd; - h->mmap = mmap_area; - h->length = nvram_erase_size; - - header = nvram_header(h); - - if( header->magic == NVRAM_MAGIC ) - { - _nvram_rehash(h); - free(mtd); - return h; - } - else - { - munmap(h->mmap, h->length); - free(h); - } - } - } - } - - free(mtd); - return NULL; -} - -/* Close NVRAM and free memory. */ -int nvram_close(nvram_handle_t *h) -{ - _nvram_free(h); - munmap(h->mmap, h->length); - close(h->fd); - free(h); - - return 0; -} - -/* Determine NVRAM device node. */ -char * nvram_find_mtd(void) -{ - FILE *fp; - int i, esz; - char dev[PATH_MAX]; - char *path = NULL; - struct stat s; - - if( (fp = fopen("/proc/mtd", "r")) ) - { - while( fgets(dev, sizeof(dev), fp) ) - { - if( strstr(dev, "nvram") && sscanf(dev, "mtd%d: %08x", &i, &esz) ) - { - nvram_erase_size = esz; - - sprintf(dev, "/dev/mtdblock/%d", i); - if( stat(dev, &s) > -1 && (s.st_mode & S_IFBLK) ) - { - if( (path = (char *) malloc(strlen(dev)+1)) != NULL ) - { - strncpy(path, dev, strlen(dev)+1); - break; - } - } - else - { - sprintf(dev, "/dev/mtdblock%d", i); - if( stat(dev, &s) > -1 && (s.st_mode & S_IFBLK) ) - { - if( (path = (char *) malloc(strlen(dev)+1)) != NULL ) - { - strncpy(path, dev, strlen(dev)+1); - break; - } - } - } - } - } - fclose(fp); - } - - return path; -} - -/* Check NVRAM staging file. */ -char * nvram_find_staging(void) -{ - struct stat s; - - if( (stat(NVRAM_STAGING, &s) > -1) && (s.st_mode & S_IFREG) ) - { - return NVRAM_STAGING; - } - - return NULL; -} - -/* Copy NVRAM contents to staging file. */ -int nvram_to_staging(void) -{ - int fdmtd, fdstg, stat; - char *mtd = nvram_find_mtd(); - char buf[nvram_erase_size]; - - stat = -1; - - if( (mtd != NULL) && (nvram_erase_size > 0) ) - { - if( (fdmtd = open(mtd, O_RDONLY)) > -1 ) - { - if( read(fdmtd, buf, sizeof(buf)) == sizeof(buf) ) - { - if((fdstg = open(NVRAM_STAGING, O_WRONLY | O_CREAT, 0600)) > -1) - { - write(fdstg, buf, sizeof(buf)); - fsync(fdstg); - close(fdstg); - - stat = 0; - } - } - - close(fdmtd); - } - } - - free(mtd); - return stat; -} - -/* Copy staging file to NVRAM device. */ -int staging_to_nvram(void) -{ - int fdmtd, fdstg, stat; - char *mtd = nvram_find_mtd(); - char buf[nvram_erase_size]; - - stat = -1; - - if( (mtd != NULL) && (nvram_erase_size > 0) ) - { - if( (fdstg = open(NVRAM_STAGING, O_RDONLY)) > -1 ) - { - if( read(fdstg, buf, sizeof(buf)) == sizeof(buf) ) - { - if( (fdmtd = open(mtd, O_WRONLY | O_SYNC)) > -1 ) - { - write(fdmtd, buf, sizeof(buf)); - fsync(fdmtd); - close(fdmtd); - stat = 0; - } - } - - close(fdstg); - - if( !stat ) - stat = unlink(NVRAM_STAGING) ? 1 : 0; - } - } - - free(mtd); - return stat; -} diff --git a/package/unvram/src/nvram.h b/package/unvram/src/nvram.h deleted file mode 100644 index e3d64613d..000000000 --- a/package/unvram/src/nvram.h +++ /dev/null @@ -1,123 +0,0 @@ -/* - * NVRAM variable manipulation - * - * Copyright 2007, Broadcom Corporation - * Copyright 2009, OpenWrt.org - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. - * - */ - -#ifndef _nvram_h_ -#define _nvram_h_ - -#include <stdint.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <fcntl.h> -#include <unistd.h> -#include <errno.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <linux/limits.h> - -#include "sdinitvals.h" - - -struct nvram_header { - uint32_t magic; - uint32_t len; - uint32_t crc_ver_init; /* 0:7 crc, 8:15 ver, 16:31 sdram_init */ - uint32_t config_refresh; /* 0:15 sdram_config, 16:31 sdram_refresh */ - uint32_t config_ncdl; /* ncdl values for memc */ -} __attribute__((__packed__)); - -struct nvram_tuple { - char *name; - char *value; - struct nvram_tuple *next; -}; - -struct nvram_handle { - int fd; - char *mmap; - unsigned long length; - struct nvram_tuple *nvram_hash[257]; - struct nvram_tuple *nvram_dead; -}; - -typedef struct nvram_handle nvram_handle_t; -typedef struct nvram_header nvram_header_t; -typedef struct nvram_tuple nvram_tuple_t; - - -/* Get nvram header. */ -nvram_header_t * nvram_header(nvram_handle_t *h); - -/* Set the value of an NVRAM variable */ -int nvram_set(nvram_handle_t *h, const char *name, const char *value); - -/* Get the value of an NVRAM variable. */ -char * nvram_get(nvram_handle_t *h, const char *name); - -/* Unset the value of an NVRAM variable. */ -int nvram_unset(nvram_handle_t *h, const char *name); - -/* Get all NVRAM variables. */ -nvram_tuple_t * nvram_getall(nvram_handle_t *h); - -/* Regenerate NVRAM. */ -int nvram_commit(nvram_handle_t *h); - -/* Open NVRAM and obtain a handle. */ -nvram_handle_t * nvram_open(const char *file, int rdonly); - -/* Close NVRAM and free memory. */ -int nvram_close(nvram_handle_t *h); - -/* Get the value of an NVRAM variable in a safe way, use "" instead of NULL. */ -#define nvram_safe_get(h, name) (nvram_get(h, name) ? : "") - -/* Computes a crc8 over the input data. */ -uint8_t hndcrc8 (uint8_t * pdata, uint32_t nbytes, uint8_t crc); - -/* Returns the crc value of the nvram. */ -uint8_t nvram_calc_crc(nvram_header_t * nvh); - -/* Determine NVRAM device node. */ -char * nvram_find_mtd(void); - -/* Copy NVRAM contents to staging file. */ -int nvram_to_staging(void); - -/* Copy staging file to NVRAM device. */ -int staging_to_nvram(void); - -/* Check NVRAM staging file. */ -char * nvram_find_staging(void); - - -/* Staging file for NVRAM */ -#define NVRAM_STAGING "/tmp/.nvram" -#define NVRAM_RO 1 -#define NVRAM_RW 0 - -/* Helper macros */ -#define NVRAM_ARRAYSIZE(a) sizeof(a)/sizeof(a[0]) -#define NVRAM_ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) - -/* NVRAM constants */ -#define NVRAM_SPACE 0x8000 -#define NVRAM_START(x) x - NVRAM_SPACE -#define NVRAM_MAGIC 0x48534C46 /* 'FLSH' */ -#define NVRAM_VERSION 1 - -#define NVRAM_CRC_START_POSITION 9 /* magic, len, crc8 to be skipped */ - - -#endif /* _nvram_h_ */ diff --git a/package/unvram/src/sdinitvals.h b/package/unvram/src/sdinitvals.h deleted file mode 100644 index 5a289adec..000000000 --- a/package/unvram/src/sdinitvals.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * SDRAM init values - * - * Copyright 2007, Broadcom Corporation - * Copyright 2009, OpenWrt.org - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. - * - */ - -#ifndef _sdinitvals_h_ -#define _sdinitvals_h_ - -/* SDRAM refresh control (refresh) register bits */ -#define SDRAM_REF(p) (((p)&0xff) | SDRAM_REF_EN) /* Refresh period */ -#define SDRAM_REF_EN 0x8000 /* Writing 1 enables periodic refresh */ - -/* SDRAM Core default Init values (OCP ID 0x803) */ -#define MEM4MX16X2 0x419 /* 16 MB */ - -#define SDRAM_INIT MEM4MX16X2 -#define SDRAM_BURSTFULL 0x0000 /* Use full page bursts */ -#define SDRAM_CONFIG SDRAM_BURSTFULL -#define SDRAM_REFRESH SDRAM_REF(0x40) - -#endif /* _sdinitvals_h_ */ |