+++ /dev/null
-/*
- * NVRAM variable manipulation (Linux user mode half)
- *
- * Copyright 2004, Broadcom Corporation
- * 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.
- *
- * $Id$
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <error.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-
-#include <typedefs.h>
-#include <bcmnvram.h>
-#include <nvram_convert.h>
-#include <shutils.h>
-#include <utils.h>
-
-#define PATH_DEV_NVRAM "/dev/nvram"
-
-/* Globals */
-static int nvram_fd = -1;
-static char *nvram_buf = NULL;
-int check_action(void);
-int file_to_buf(char *path, char *buf, int len);
-
-int
-nvram_init(void *unused)
-{
- if ((nvram_fd = open(PATH_DEV_NVRAM, O_RDWR)) < 0)
- goto err;
-
- /* Map kernel string buffer into user space */
- if ((nvram_buf = mmap(NULL, NVRAM_SPACE, PROT_READ, MAP_SHARED, nvram_fd, 0)) == MAP_FAILED) {
- close(nvram_fd);
- nvram_fd = -1;
- goto err;
- }
-
- return 0;
-
- err:
- perror(PATH_DEV_NVRAM);
- return errno;
-}
-
-char *
-nvram_get(const char *name)
-{
- size_t count = strlen(name) + 1;
- char tmp[100], *value;
- unsigned long *off = (unsigned long *) tmp;
-
- if (nvram_fd < 0)
- if (nvram_init(NULL))
- return NULL;
-
- if (count > sizeof(tmp)) {
- if (!(off = malloc(count)))
- return NULL;
- }
-
- /* Get offset into mmap() space */
- strcpy((char *) off, name);
-
- count = read(nvram_fd, off, count);
-
- if (count == sizeof(unsigned long))
- value = &nvram_buf[*off];
- else
- value = NULL;
-
- if (count < 0)
- perror(PATH_DEV_NVRAM);
-
- if (off != (unsigned long *) tmp)
- free(off);
-
- return value;
-}
-
-int
-nvram_getall(char *buf, int count)
-{
- int ret;
-
- if (nvram_fd < 0)
- if ((ret = nvram_init(NULL)))
- return ret;
-
- if (count == 0)
- return 0;
-
- /* Get all variables */
- *buf = '\0';
-
- ret = read(nvram_fd, buf, count);
-
- if (ret < 0)
- perror(PATH_DEV_NVRAM);
-
- return (ret == count) ? 0 : ret;
-}
-
-static int
-_nvram_set(const char *name, const char *value)
-{
- size_t count = strlen(name) + 1;
- char tmp[100], *buf = tmp;
- int ret;
-
- if (nvram_fd < 0)
- if ((ret = nvram_init(NULL)))
- return ret;
-
- /* Unset if value is NULL */
- if (value)
- count += strlen(value) + 1;
-
- if (count > sizeof(tmp)) {
- if (!(buf = malloc(count)))
- return -ENOMEM;
- }
-
- if (value)
- sprintf(buf, "%s=%s", name, value);
- else
- strcpy(buf, name);
-
- ret = write(nvram_fd, buf, count);
-
- if (ret < 0)
- perror(PATH_DEV_NVRAM);
-
- if (buf != tmp)
- free(buf);
-
- return (ret == count) ? 0 : ret;
-}
-
-int
-nvram_set(const char *name, const char *value)
-{
- extern struct nvram_convert nvram_converts[];
- struct nvram_convert *v;
- int ret;
-
- ret = _nvram_set(name, value);
-
- for(v = nvram_converts ; v->name ; v++) {
- if(!strcmp(v->name, name)){
- if(strcmp(v->wl0_name,"")) _nvram_set(v->wl0_name, value);
- if(strcmp(v->d11g_name,"")) _nvram_set(v->d11g_name, value);
- }
- }
-
- return ret;
-}
-
-int
-nvram_unset(const char *name)
-{
- return _nvram_set(name, NULL);
-}
-
-int
-nvram_commit(void)
-{
- int ret;
-
- cprintf("nvram_commit(): start\n");
-
- if((check_action() == ACT_IDLE) ||
- (check_action() == ACT_SW_RESTORE) ||
- (check_action() == ACT_HW_RESTORE)){
- if (nvram_fd < 0)
- if ((ret = nvram_init(NULL)))
- return ret;
-
- ret = ioctl(nvram_fd, NVRAM_MAGIC, NULL);
-
- if (ret < 0)
- perror(PATH_DEV_NVRAM);
-
- cprintf("nvram_commit(): end\n");
- }
- else
- cprintf("nvram_commit(): nothing to do...\n");
-
- return ret;
-}
-
-int file2nvram(char *filename, char *varname) {
- FILE *fp;
- int c,count;
- int i=0,j=0;
- char mem[10000],buf[30000];
-
- if ( !(fp=fopen(filename,"rb") ))
- return 0;
-
- count=fread(mem,1,sizeof(mem),fp);
- fclose(fp);
- for (j=0;j<count;j++) {
- if (i > sizeof(buf)-3 )
- break;
- c=mem[j];
- if (c >= 32 && c <= 126 && c != '\\' && c != '~') {
- buf[i++]=(unsigned char) c;
- } else if (c==0) {
- buf[i++]='~';
- } else {
- buf[i++]='\\';
- sprintf(buf+i,"%02X",c);
- i+=2;
- }
- }
- if (i==0) return 0;
- buf[i]=0;
- //fprintf(stderr,"================ > file2nvram %s = [%s] \n",varname,buf);
- nvram_set(varname,buf);
- //nvram_commit(); //Barry adds for test
-}
-
-int nvram2file(char *varname, char *filename) {
- FILE *fp;
- int c,tmp;
- int i=0,j=0;
- char *buf;
- char mem[10000];
-
- if ( !(fp=fopen(filename,"wb") ))
- return 0;
-
- buf=strdup(nvram_safe_get(varname));
- //fprintf(stderr,"=================> nvram2file %s = [%s] \n",varname,buf);
- while ( buf[i] && j < sizeof(mem)-3 ) {
- if (buf[i] == '\\') {
- i++;
- tmp=buf[i+2];
- buf[i+2]=0;
- sscanf(buf+i,"%02X",&c);
- buf[i+2]=tmp;
- i+=2;
- mem[j]=c;j++;
- } else if (buf[i] == '~') {
- mem[j]=0;j++;
- i++;
- } else {
- mem[j]=buf[i];j++;
- i++;
- }
- }
- if (j<=0) return j;
- j=fwrite(mem,1,j,fp);
- fclose(fp);
- free(buf);
- return j;
-}
-
-int
-check_action(void)
-{
- char buf[80] = "";
-
- if(file_to_buf(ACTION_FILE, buf, sizeof(buf))){
- if(!strcmp(buf, "ACT_TFTP_UPGRADE")){
- cprintf("Upgrading from tftp now, quiet exit....\n");
- return ACT_TFTP_UPGRADE;
- }
- else if(!strcmp(buf, "ACT_WEBS_UPGRADE")){
- cprintf("Upgrading from web (https) now, quiet exit....\n");
- return ACT_WEBS_UPGRADE;
- }
- else if(!strcmp(buf, "ACT_WEB_UPGRADE")){
- cprintf("Upgrading from web (http) now, quiet exit....\n");
- return ACT_WEB_UPGRADE;
- }
- else if(!strcmp(buf, "ACT_SW_RESTORE")){
- cprintf("Receive restore command from web, quiet exit....\n");
- return ACT_SW_RESTORE;
- }
- else if(!strcmp(buf, "ACT_HW_RESTORE")){
- cprintf("Receive restore commond from resetbutton, quiet exit....\n");
- return ACT_HW_RESTORE;
- }
- }
- //fprintf(stderr, "Waiting for upgrading....\n");
- return ACT_IDLE;
-}
-
-int
-file_to_buf(char *path, char *buf, int len)
-{
- FILE *fp;
-
- memset(buf, 0 , len);
-
- if ((fp = fopen(path, "r"))) {
- fgets(buf, len, fp);
- fclose(fp);
- return 1;
- }
-
- return 0;
-}
projects / openwrt / staging / dedeckeh.git / blobdiff