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osmo-pcu
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Adding MCC/MNC spoof options to pcu_main.cpp 

The option added is required to change PLMN that is announced to SGSN.
This allows BTS to have a different PLMN.

(Usefull for roaming in conjunction with simlock.)
This commit is contained in:
Andreas Eversberg 2012-07-06 08:24:53 +02:00
parent dfa563cd3b
commit 81e895b619
1 changed files with 60 additions and 2 deletions
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62
src/pcu_main.cpp
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@ -23,14 +23,64 @@
#include <gprs_rlcmac.h>
#include <gsm_timer.h>
#include <gprs_debug.h>
#include <unistd.h>
#include <getopt.h>
struct gprs_rlcmac_bts *gprs_rlcmac_bts;
uint16_t spoof_mcc = 0, spoof_mnc = 0;
// TODO: We should move this parameters to config file.
#define SGSN_IP "127.0.0.1"
#define SGSN_PORT 23000
#define NSVCI 4
static void print_help()
{
printf( "Some useful options:\n"
" -h --help this text\n"
" -m --mcc MCC use given MCC instead of value "
"provided by BTS\n"
" -n --mnc MNC use given MNC instead of value "
"provided by BTS\n"
);
}
/* FIXME: finally get some option parsing code into libosmocore */
static void handle_options(int argc, char **argv)
{
while (1) {
int option_idx = 0, c;
static const struct option long_options[] = {
{ "help", 0, 0, 'h' },
{ "mcc", 0, 0, 'm' },
{ "mnc", 0, 0, 'n' },
{ 0, 0, 0, 0 }
};
c = getopt_long(argc, argv, "hm:n:",
long_options, &option_idx);
if (c == -1)
break;
switch (c) {
case 'h':
print_help();
exit(0);
break;
case 'm':
spoof_mcc = atoi(optarg);
break;
case 'n':
spoof_mnc = atoi(optarg);
break;
default:
fprintf(stderr, "Unknown option '%c'\n", c);
exit(0);
break;
}
}
}
int sgsn_ns_cb(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, struct msgb *msg, uint16_t bvci)
{
int rc = 0;
@ -72,6 +122,14 @@ int main(int argc, char *argv[])
bts->n3105 = 8;
osmo_init_logging(&gprs_log_info);
handle_options(argc, argv);
if ((!!spoof_mcc) + (!!spoof_mnc) == 1) {
fprintf(stderr, "--mcc and --mnc must be specified "
"together.\n");
exit(0);
}
pcu_l1if_open();
sgsn_nsi = gprs_ns_instantiate(&sgsn_ns_cb, NULL);
@ -85,8 +143,8 @@ int main(int argc, char *argv[])
bctx = btsctx_alloc(BVCI, NSEI);
bctx->cell_id = CELL_ID;
bctx->nsei = NSEI;
bctx->ra_id.mnc = MNC;
bctx->ra_id.mcc = MCC;
bctx->ra_id.mnc = spoof_mcc ? : MNC;
bctx->ra_id.mcc = spoof_mnc ? : MCC;
bctx->ra_id.lac = PCU_LAC;
bctx->ra_id.rac = PCU_RAC;
bctx->bvci = BVCI;