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    1: #include "global.h"
    2: #include "ub_env.h"
    3: 
    4: 
    5: env_t *env;
    6: 
    7: 
    8: static int
    9: ub_flash_io(const char *csSec, int mode)
   10: {
   11: 	int f, l, rlen;
   12: 	const char *str;
   13: 	size_t siz;
   14: 	ait_val_t v;
   15: 
   16: 	FTRACE(4);
   17: 
   18: 	str = cfg_getAttribute(&cfg, csSec, "size");
   19: 	siz = strtol(str, NULL, 0);
   20: 	if (!siz)
   21: 		return -1;
   22: 	str = cfg_getAttribute(&cfg, csSec, "drive");
   23: 	if (!str) {
   24: 		printf("Error:: drive not found!\n");
   25: 		return -1;
   26: 	}
   27: 
   28: 	cfg_loadAttribute(&cfg, "ube", "lock", &v, UBE_LOCK);
   29: 	l = open(AIT_GET_STR(&v), O_CREAT | O_EXCL | O_WRONLY, 0644);
   30: 	if (l == -1) {
   31: 		printf("Error:: Locked u-boot-env map %s\n", AIT_GET_STR(&v));
   32: 		AIT_FREE_VAL(&v);
   33: 		return -1;
   34: 	}
   35: 
   36: 	f = open(str, mode);
   37: 	if (f == -1) {
   38: 		printf("Error:: Can't access u-boot-env device %s\n", str);
   39: 		close(l);
   40: 		unlink(AIT_GET_STR(&v));
   41: 		AIT_FREE_VAL(&v);
   42: 		return -1;
   43: 	}
   44: 
   45: 	if (mode & O_RDWR) {
   46: 		rlen = write(f, env, siz);
   47: 		if (rlen != siz)
   48: 			printf("Error:: written %d bytes != %d\n", rlen, siz);
   49: 		else
   50: 			VERB(3) printf("Written %d bytes\n", rlen);
   51: 		lseek(f, 0, SEEK_SET);
   52: 	}
   53: 
   54: 	rlen = read(f, env, siz);
   55: 	if (rlen != siz)
   56: 		printf("Error:: readed %d bytes != %d\n", rlen, siz);
   57: 	else
   58: 		VERB(3) printf("Readed %d bytes\n", rlen);
   59: 
   60: 	close(f);
   61: 	close(l);
   62: 	unlink(AIT_GET_STR(&v));
   63: 	AIT_FREE_VAL(&v);
   64: 	return 0;
   65: }
   66: 
   67: int
   68: ub_load(const char *csSec)
   69: {
   70: 	const char *str;
   71: 	size_t siz;
   72: 
   73: 	FTRACE(4);
   74: 
   75: 	str = cfg_getAttribute(&cfg, csSec, "size");
   76: 	siz = strtol(str, NULL, 0);
   77: 	if (!siz)
   78: 		return -1;
   79: 
   80: 	env = e_malloc(siz);
   81: 	if (!env) {
   82: 		ELIBERR(elwix);
   83: 		return -1;
   84: 	}
   85: 
   86: 	return ub_flash_io(csSec, O_RDONLY);
   87: }
   88: 
   89: void
   90: ub_unload()
   91: {
   92: 	FTRACE(4);
   93: 
   94: 	if (env)
   95: 		e_free(env);
   96: }
   97: 
   98: const char*
   99: ub_getenv(const char *csSec, const char *csName)
  100: {
  101: 	const char *str = NULL;
  102: 
  103: 	FTRACE(3);
  104: 
  105: 	return str;
  106: }
  107: 
  108: int
  109: ub_setenv(const char *csSec, const char *csName, const char *csValue)
  110: {
  111: 	FTRACE(3);
  112: 
  113: 	return 0;
  114: }