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/*
* (C) 2010 by Andreas Eversberg <jolly@eversberg.eu>
*
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <stdint.h>
#include <errno.h>
#include <string.h>
#include <osmocore/talloc.h>
#include <osmocom/bb/common/logging.h>
#include <osmocom/bb/common/osmocom_data.h>
#include <osmocom/bb/common/networks.h>
void *l23_ctx;
int gsm_subscr_init(struct osmocom_ms *ms)
{
struct gsm_subscriber *subscr = &ms->subscr;
memset(subscr, 0, sizeof(*subscr));
subscr->ms = ms;
/* set key invalid */
subscr->key_seq = 7;
/* init lists */
INIT_LLIST_HEAD(&subscr->plmn_list);
INIT_LLIST_HEAD(&subscr->plmn_na);
return 0;
}
int gsm_subscr_exit(struct osmocom_ms *ms)
{
struct gsm_subscriber *subscr = &ms->subscr;
struct llist_head *lh, *lh2;
/* flush lists */
llist_for_each_safe(lh, lh2, &subscr->plmn_list) {
llist_del(lh);
talloc_free(lh);
}
llist_for_each_safe(lh, lh2, &subscr->plmn_na) {
llist_del(lh);
talloc_free(lh);
}
return 0;
}
/* Attach test card, no sim must be present */
int gsm_subscr_testcard(struct osmocom_ms *ms, uint16_t mcc, uint16_t mnc)
{
struct gsm_settings *set = &ms->settings;
struct gsm_subscriber *subscr = &ms->subscr;
struct msgb *msg;
char *error;
if (subscr->sim_valid) {
LOGP(DMM, LOGL_ERROR, "Cannot insert card, until current card "
"is detached.\n");
return -EBUSY;
}
error = gsm_check_imsi(set->test_imsi);
if (error) {
LOGP(DMM, LOGL_ERROR, "%s\n", error);
return -EINVAL;
}
/* reset subscriber */
gsm_subscr_exit(ms);
gsm_subscr_init(ms);
sprintf(subscr->sim_name, "test");
// TODO: load / save SIM to file system
subscr->sim_valid = 1;
subscr->ustate = GSM_SIM_U2_NOT_UPDATED;
subscr->acc_barr = set->test_barr; /* we may access barred cell */
subscr->acc_class = 0xffff; /* we have any access class */
subscr->plmn_valid = set->test_rplmn_valid;
subscr->plmn_mcc = mcc;
subscr->plmn_mnc = mnc;
subscr->always_search_hplmn = set->test_always;
subscr->t6m_hplmn = 1; /* try to find home network every 6 min */
strcpy(subscr->imsi, set->test_imsi);
LOGP(DMM, LOGL_INFO, "(ms %s) Inserting test card (IMSI=%s %s, %s)\n",
ms->name, subscr->imsi, gsm_imsi_mcc(subscr->imsi),
gsm_imsi_mnc(subscr->imsi));
LOGP(DMM, LOGL_INFO, "-> Test card regisered to %s %s (%s, %s)\n",
gsm_print_mcc(mcc), gsm_print_mnc(mnc), gsm_get_mcc(mcc),
gsm_get_mnc(mcc, mnc));
/* insert card */
msg = gsm48_mmr_msgb_alloc(GSM48_MMR_REG_REQ);
if (!msg)
return -ENOMEM;
gsm48_mmr_downmsg(ms, msg);
return 0;
}
/* Detach card */
int gsm_subscr_remove(struct osmocom_ms *ms)
{
struct gsm_subscriber *subscr = &ms->subscr;
struct msgb *msg;
if (!subscr->sim_valid) {
LOGP(DMM, LOGL_ERROR, "Cannot remove card, no card present\n");
return -EINVAL;
}
/* remove card */
msg = gsm48_mmr_msgb_alloc(GSM48_MMR_NREG_REQ);
if (!msg)
return -ENOMEM;
gsm48_mmr_downmsg(ms, msg);
return 0;
}
static const char *subscr_ustate_names[] = {
"U0_NULL",
"U1_UPDATED",
"U2_NOT_UPDATED",
"U3_ROAMING_NA"
};
/* change to new U state */
void new_sim_ustate(struct gsm_subscriber *subscr, int state)
{
LOGP(DMM, LOGL_INFO, "(ms %s) new state %s -> %s\n", subscr->ms->name,
subscr_ustate_names[subscr->ustate],
subscr_ustate_names[state]);
subscr->ustate = state;
}
/* del forbidden PLMN */
int gsm_subscr_del_forbidden_plmn(struct gsm_subscriber *subscr, uint16_t mcc,
uint16_t mnc)
{
struct gsm_sub_plmn_na *na;
llist_for_each_entry(na, &subscr->plmn_na, entry) {
if (na->mcc == mcc && na->mnc == mnc) {
LOGP(DPLMN, LOGL_INFO, "Delete from list of forbidden "
"PLMNs (mcc=%s, mnc=%s)\n",
gsm_print_mcc(mcc), gsm_print_mnc(mnc));
llist_del(&na->entry);
talloc_free(na);
#ifdef TODO
update plmn not allowed list on sim
#endif
return 0;
}
}
return -EINVAL;
}
/* add forbidden PLMN */
int gsm_subscr_add_forbidden_plmn(struct gsm_subscriber *subscr, uint16_t mcc,
uint16_t mnc, uint8_t cause)
{
struct gsm_sub_plmn_na *na;
LOGP(DPLMN, LOGL_INFO, "Add to list of forbidden PLMNs "
"(mcc=%s, mnc=%s)\n", gsm_print_mcc(mcc), gsm_print_mnc(mnc));
na = talloc_zero(l23_ctx, struct gsm_sub_plmn_na);
if (!na)
return -ENOMEM;
na->mcc = mcc;
na->mnc = mnc;
na->cause = cause;
llist_add_tail(&na->entry, &subscr->plmn_na);
/* don't add Home PLMN to SIM */
if (subscr->sim_valid && gsm_match_mnc(mcc, mnc, subscr->imsi))
return -EINVAL;
#ifdef TODO
update plmn not allowed list on sim
#endif
return 0;
}
/* search forbidden PLMN */
int gsm_subscr_is_forbidden_plmn(struct gsm_subscriber *subscr, uint16_t mcc,
uint16_t mnc)
{
struct gsm_sub_plmn_na *na;
llist_for_each_entry(na, &subscr->plmn_na, entry) {
if (na->mcc == mcc && na->mnc == mnc)
return 1;
}
return 0;
}
int gsm_subscr_dump_forbidden_plmn(struct osmocom_ms *ms,
void (*print)(void *, const char *, ...), void *priv)
{
struct gsm_subscriber *subscr = &ms->subscr;
struct gsm_sub_plmn_na *temp;
print(priv, "MCC |MNC |cause\n");
print(priv, "-------+-------+-------\n");
llist_for_each_entry(temp, &subscr->plmn_na, entry)
print(priv, "%s |%s%s |#%d\n",
gsm_print_mcc(temp->mcc), gsm_print_mnc(temp->mnc),
((temp->mnc & 0x00f) == 0x00f) ? " ":"", temp->cause);
return 0;
}
/* dump subscriber */
void gsm_subscr_dump(struct gsm_subscriber *subscr,
void (*print)(void *, const char *, ...), void *priv)
{
int i;
struct gsm_sub_plmn_list *plmn_list;
struct gsm_sub_plmn_na *plmn_na;
print(priv, "Mobile Subscriber of MS '%s':\n", subscr->ms->name);
if (!subscr->sim_valid) {
print(priv, " No SIM present.\n");
return;
}
print(priv, " IMSI: %s\n", subscr->imsi);
print(priv, " Status: %s IMSI %s", subscr_ustate_names[subscr->ustate],
(subscr->imsi_attached) ? "attached" : "detached");
if (subscr->tmsi_valid)
print(priv, " TSMI %08x", subscr->tmsi);
if (subscr->lai_valid)
print(priv, " LAI: MCC %s MNC %s LAC 0x%04x (%s, %s)\n",
gsm_print_mcc(subscr->lai_mcc),
gsm_print_mnc(subscr->lai_mnc), subscr->lai_lac,
gsm_get_mcc(subscr->lai_mcc),
gsm_get_mnc(subscr->lai_mcc, subscr->lai_mnc));
else
print(priv, " LAI: invalid\n");
if (subscr->key_seq != 7) {
print(priv, " Key: sequence %d ");
for (i = 0; i < sizeof(subscr->key); i++)
print(priv, " %02x", subscr->key[i]);
print(priv, "\n");
}
if (subscr->plmn_valid)
print(priv, " Current PLMN: MCC %s MNC %s (%s, %s)\n",
gsm_print_mcc(subscr->plmn_mcc),
gsm_print_mnc(subscr->plmn_mnc),
gsm_get_mcc(subscr->plmn_mcc),
gsm_get_mnc(subscr->plmn_mcc, subscr->plmn_mnc));
print(priv, " Access barred cells: %s\n",
(subscr->acc_barr) ? "yes" : "no");
print(priv, " Access classes:");
for (i = 0; i < 16; i++)
if ((subscr->acc_class & (1 << i)))
print(priv, " C%d", i);
print(priv, "\n");
if (!llist_empty(&subscr->plmn_list)) {
print(priv, " List of preferred PLMNs:\n");
print(priv, " MCC |MNC\n");
print(priv, " -------+-------\n");
llist_for_each_entry(plmn_list, &subscr->plmn_list, entry)
print(priv, " %s |%s\n",
gsm_print_mcc(plmn_list->mcc),
gsm_print_mnc(plmn_list->mnc));
}
if (!llist_empty(&subscr->plmn_na)) {
print(priv, " List of forbidden PLMNs:\n");
print(priv, " MCC |MNC |cause\n");
print(priv, " -------+-------+-------\n");
llist_for_each_entry(plmn_na, &subscr->plmn_na, entry)
print(priv, " %s |%s%s |#%d\n",
gsm_print_mcc(plmn_na->mcc),
gsm_print_mnc(plmn_na->mnc),
((plmn_na->mnc & 0x00f) == 0x00f) ? " ":"",
plmn_na->cause);
}
}
char *gsm_check_imsi(const char *imsi)
{
int i;
if (!imsi || strlen(imsi) != 15)
return "IMSI must have 15 digits!";
for (i = 0; i < strlen(imsi); i++) {
if (imsi[i] < '0' || imsi[i] > '9')
return "IMSI must have digits 0 to 9 only!";
}
return NULL;
}
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