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add new new gprs_tmsi2tlli() function

This commit is contained in:
Harald Welte 2010-06-01 10:47:07 +02:00
parent 4c053013c9
commit c226317c9c
2 changed files with 20 additions and 1 deletions
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4
include/osmocore/gsm_utils.h
View File

@ -88,7 +88,7 @@ void gsm_fn2gsmtime(struct gsm_time *time, uint32_t fn);
uint32_t gsm_gsmtime2fn(struct gsm_time *time);
/* GSM TS 03.03 Chapter 2.6 */
enum gprs_tlli_tyoe {
enum gprs_tlli_type {
TLLI_LOCAL,
TLLI_FOREIGN,
TLLI_RANDOM,
@ -99,5 +99,7 @@ enum gprs_tlli_tyoe {
/* TS 03.03 Chapter 2.6 */
int gprs_tlli_type(uint32_t tlli);
uint32_t gprs_tmsi2tlli(uint32_t p_tmsi, enum gprs_tlli_type type);
void generate_backtrace();
#endif

17
src/gsm_utils.c
View File

@ -374,3 +374,20 @@ int gprs_tlli_type(uint32_t tlli)
return TLLI_RESERVED;
}
uint32_t gprs_tmsi2tlli(uint32_t p_tmsi, enum gprs_tlli_type type)
{
uint32_t tlli;
switch (type) {
case TLLI_LOCAL:
tlli = p_tmsi | 0xc0000000;
break;
case TLLI_FOREIGN:
tlli = (p_tmsi & 0x3fffffff) | 0x80000000;
break;
default:
tlli = 0;
break;
}
return tlli;
}