diff options
Diffstat (limited to 'openwrt/package/nvram/src/nvram_linux.c')
| -rw-r--r-- | openwrt/package/nvram/src/nvram_linux.c | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/openwrt/package/nvram/src/nvram_linux.c b/openwrt/package/nvram/src/nvram_linux.c deleted file mode 100644 index c41e32118a..0000000000 --- a/openwrt/package/nvram/src/nvram_linux.c +++ /dev/null @@ -1,320 +0,0 @@ -/* - * 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; -} |