+++ /dev/null
-/*
- * 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("Offset: 0x%08X\n", nvram->offset);
-
- 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") || !strcmp(argv[i], "unset") || !strcmp(argv[i], "set") )
- {
- if( (i+1) < argc )
- {
- switch(argv[i++][0])
- {
- case 'g':
- stat = do_get(nvram, argv[i]);
- break;
-
- case 'u':
- stat = do_unset(nvram, argv[i]);
- break;
-
- case 's':
- stat = do_set(nvram, argv[i]);
- break;
- }
- done++;
- }
- else
- {
- fprintf(stderr, "Command '%s' requires an argument!\n", argv[i]);
- done = 0;
- break;
- }
- }
- 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;
-}
projects / openwrt / staging / florian.git / blobdiff