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-rw-r--r--src/libmsc/gsm_subscriber.c313
1 files changed, 37 insertions, 276 deletions
diff --git a/src/libmsc/gsm_subscriber.c b/src/libmsc/gsm_subscriber.c
index 1a03cf76..e9b2e0e5 100644
--- a/src/libmsc/gsm_subscriber.c
+++ b/src/libmsc/gsm_subscriber.c
@@ -39,11 +39,10 @@
#include <openbsc/signal.h>
#include <openbsc/db.h>
#include <openbsc/chan_alloc.h>
+#include <openbsc/vlr.h>
void *tall_sub_req_ctx;
-extern struct llist_head *subscr_bsc_active_subscribers(void);
-
int gsm48_secure_channel(struct gsm_subscriber_connection *conn, int key_seq,
gsm_cbfn *cb, void *cb_data);
@@ -62,31 +61,35 @@ struct subscr_request {
void *param;
};
-static struct gsm_subscriber *get_subscriber(struct gsm_subscriber_group *sgrp,
- int type, const char *ident)
+static struct bsc_subscr *vlr_subscr_to_bsc_sub(struct llist_head *bsc_subscribers,
+ struct vlr_subscr *vsub)
{
- struct gsm_subscriber *subscr = db_get_subscriber(type, ident);
- if (subscr)
- subscr->group = sgrp;
- return subscr;
+ struct bsc_subscr *sub;
+ /* TODO MSC split -- creating a BSC subscriber directly from MSC data
+ * structures in RAM. At some point the MSC will send a message to the
+ * BSC instead. */
+ sub = bsc_subscr_find_or_create_by_imsi(bsc_subscribers, vsub->imsi);
+ sub->tmsi = vsub->tmsi;
+ sub->lac = vsub->lac;
+ return sub;
}
/*
* We got the channel assigned and can now hand this channel
* over to one of our callbacks.
*/
-static int subscr_paging_dispatch(unsigned int hooknum, unsigned int event,
- struct msgb *msg, void *data, void *param)
+int subscr_paging_dispatch(unsigned int hooknum, unsigned int event,
+ struct msgb *msg, void *data, void *param)
{
struct subscr_request *request, *tmp;
struct gsm_subscriber_connection *conn = data;
- struct gsm_subscriber *subscr = param;
+ struct vlr_subscr *vsub = param;
struct paging_signal_data sig_data;
struct bsc_subscr *bsub;
struct gsm_network *net;
- OSMO_ASSERT(subscr && subscr->is_paging);
- net = subscr->group->net;
+ OSMO_ASSERT(vsub && vsub->cs.is_paging);
+ net = vsub->vlr->user_ctx;
/*
* Stop paging on all other BTS. E.g. if this is
@@ -95,18 +98,12 @@ static int subscr_paging_dispatch(unsigned int hooknum, unsigned int event,
* and forget we wanted to page.
*/
- /* TODO MSC split -- creating a BSC subscriber directly from MSC data
- * structures in RAM. At some point the MSC will send a message to the
- * BSC instead. */
- bsub = bsc_subscr_find_or_create_by_imsi(net->bsc_subscribers,
- subscr->imsi);
- bsub->tmsi = subscr->tmsi;
- bsub->lac = subscr->lac;
+ bsub = vlr_subscr_to_bsc_sub(conn->network->bsc_subscribers, vsub);
paging_request_stop(&net->bts_list, NULL, bsub, NULL, NULL);
bsc_subscr_put(bsub);
/* Inform parts of the system we don't know */
- sig_data.subscr = subscr;
+ sig_data.vsub = vsub;
sig_data.bts = conn ? conn->bts : NULL;
sig_data.conn = conn;
sig_data.paging_result = event;
@@ -117,105 +114,52 @@ static int subscr_paging_dispatch(unsigned int hooknum, unsigned int event,
&sig_data
);
- llist_for_each_entry_safe(request, tmp, &subscr->requests, entry) {
+ llist_for_each_entry_safe(request, tmp, &vsub->cs.requests, entry) {
llist_del(&request->entry);
request->cbfn(hooknum, event, msg, data, request->param);
talloc_free(request);
}
/* balanced with the moment we start paging */
- subscr->is_paging = 0;
- subscr_put(subscr);
+ vsub->cs.is_paging = false;
+ vlr_subscr_put(vsub);
return 0;
}
-static int subscr_paging_sec_cb(unsigned int hooknum, unsigned int event,
- struct msgb *msg, void *data, void *param)
-{
- int rc;
-
- switch (event) {
- case GSM_SECURITY_AUTH_FAILED:
- /* Dispatch as paging failure */
- rc = subscr_paging_dispatch(
- GSM_HOOK_RR_PAGING, GSM_PAGING_EXPIRED,
- msg, data, param);
- break;
-
- case GSM_SECURITY_NOAVAIL:
- case GSM_SECURITY_SUCCEEDED:
- /* Dispatch as paging failure */
- rc = subscr_paging_dispatch(
- GSM_HOOK_RR_PAGING, GSM_PAGING_SUCCEEDED,
- msg, data, param);
- break;
-
- default:
- rc = -EINVAL;
- }
-
- return rc;
-}
-
-static int subscr_paging_cb(unsigned int hooknum, unsigned int event,
- struct msgb *msg, void *data, void *param)
-{
- struct gsm_subscriber_connection *conn = data;
- struct gsm48_hdr *gh;
- struct gsm48_pag_resp *pr;
-
- /* Other cases mean problem, dispatch direclty */
- if (event != GSM_PAGING_SUCCEEDED)
- return subscr_paging_dispatch(hooknum, event, msg, data, param);
-
- /* Get paging response */
- gh = msgb_l3(msg);
- pr = (struct gsm48_pag_resp *)gh->data;
-
- /* We _really_ have a channel, secure it now ! */
- return gsm48_secure_channel(conn, pr->key_seq, subscr_paging_sec_cb, param);
-}
-
-struct subscr_request *subscr_request_channel(struct gsm_subscriber *subscr,
- int channel_type, gsm_cbfn *cbfn, void *param)
+struct subscr_request *subscr_request_channel(struct vlr_subscr *vsub,
+ int channel_type,
+ gsm_cbfn *cbfn, void *param)
{
int rc;
struct subscr_request *request;
struct bsc_subscr *bsub;
- struct gsm_network *net = subscr->group->net;
+ struct gsm_network *net = vsub->vlr->user_ctx;
/* Start paging.. we know it is async so we can do it before */
- if (!subscr->is_paging) {
+ if (!vsub->cs.is_paging) {
LOGP(DMM, LOGL_DEBUG, "Subscriber %s not paged yet.\n",
- subscr_name(subscr));
- /* TODO MSC split -- creating a BSC subscriber directly from
- * MSC data structures in RAM. At some point the MSC will send
- * a message to the BSC instead. */
- bsub = bsc_subscr_find_or_create_by_imsi(net->bsc_subscribers,
- subscr->imsi);
- bsub->tmsi = subscr->tmsi;
- bsub->lac = subscr->lac;
- rc = paging_request(net, bsub, channel_type, subscr_paging_cb,
- subscr);
+ vlr_subscr_name(vsub));
+ bsub = vlr_subscr_to_bsc_sub(net->bsc_subscribers, vsub);
+ rc = paging_request(net, bsub, channel_type, NULL, NULL);
bsc_subscr_put(bsub);
if (rc <= 0) {
LOGP(DMM, LOGL_ERROR, "Subscriber %s paging failed: %d\n",
- subscr_name(subscr), rc);
+ vlr_subscr_name(vsub), rc);
return NULL;
}
/* reduced on the first paging callback */
- subscr_get(subscr);
- subscr->is_paging = 1;
+ vlr_subscr_get(vsub);
+ vsub->cs.is_paging = true;
}
/* TODO: Stop paging in case of memory allocation failure */
- request = talloc_zero(subscr, struct subscr_request);
+ request = talloc_zero(vsub, struct subscr_request);
if (!request)
return NULL;
request->cbfn = cbfn;
request->param = param;
- llist_add_tail(&request->entry, &subscr->requests);
+ llist_add_tail(&request->entry, &vsub->cs.requests);
return request;
}
@@ -225,196 +169,13 @@ void subscr_remove_request(struct subscr_request *request)
talloc_free(request);
}
-struct gsm_subscriber *subscr_create_subscriber(struct gsm_subscriber_group *sgrp,
- const char *imsi)
-{
- struct gsm_subscriber *subscr = db_create_subscriber(imsi,
- sgrp->net->ext_min,
- sgrp->net->ext_max,
- sgrp->net->auto_assign_exten);
- if (subscr)
- subscr->group = sgrp;
- return subscr;
-}
-
-struct gsm_subscriber *subscr_get_by_tmsi(struct gsm_subscriber_group *sgrp,
- uint32_t tmsi)
-{
- char tmsi_string[14];
- struct gsm_subscriber *subscr;
-
- /* we might have a record in memory already */
- llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) {
- if (tmsi == subscr->tmsi)
- return subscr_get(subscr);
- }
-
- sprintf(tmsi_string, "%u", tmsi);
- return get_subscriber(sgrp, GSM_SUBSCRIBER_TMSI, tmsi_string);
-}
-
-struct gsm_subscriber *subscr_get_by_imsi(struct gsm_subscriber_group *sgrp,
- const char *imsi)
-{
- struct gsm_subscriber *subscr;
-
- llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) {
- if (strcmp(subscr->imsi, imsi) == 0)
- return subscr_get(subscr);
- }
-
- return get_subscriber(sgrp, GSM_SUBSCRIBER_IMSI, imsi);
-}
-
-struct gsm_subscriber *subscr_get_by_extension(struct gsm_subscriber_group *sgrp,
- const char *ext)
-{
- struct gsm_subscriber *subscr;
-
- llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) {
- if (strcmp(subscr->extension, ext) == 0)
- return subscr_get(subscr);
- }
-
- return get_subscriber(sgrp, GSM_SUBSCRIBER_EXTENSION, ext);
-}
-
-struct gsm_subscriber *subscr_get_by_id(struct gsm_subscriber_group *sgrp,
- unsigned long long id)
-{
- struct gsm_subscriber *subscr;
- char buf[32];
- sprintf(buf, "%llu", id);
-
- llist_for_each_entry(subscr, subscr_bsc_active_subscribers(), entry) {
- if (subscr->id == id)
- return subscr_get(subscr);
- }
-
- return get_subscriber(sgrp, GSM_SUBSCRIBER_ID, buf);
-}
-
-int subscr_update_expire_lu(struct gsm_subscriber *s, struct gsm_bts *bts)
-{
- int rc;
-
- if (!s) {
- LOGP(DMM, LOGL_ERROR, "LU Expiration but NULL subscriber\n");
- return -1;
- }
- if (!bts) {
- LOGP(DMM, LOGL_ERROR, "%s: LU Expiration but NULL bts\n",
- subscr_name(s));
- return -1;
- }
-
- /* Table 10.5.33: The T3212 timeout value field is coded as the
- * binary representation of the timeout value for
- * periodic updating in decihours. Mark the subscriber as
- * inactive if it missed two consecutive location updates.
- * Timeout is twice the t3212 value plus one minute */
-
- /* Is expiration handling enabled? */
- if (bts->si_common.chan_desc.t3212 == 0)
- s->expire_lu = GSM_SUBSCRIBER_NO_EXPIRATION;
- else
- s->expire_lu = time(NULL) +
- (bts->si_common.chan_desc.t3212 * 60 * 6 * 2) + 60;
-
- rc = db_sync_subscriber(s);
- db_subscriber_update(s);
- return rc;
-}
-
-int subscr_update(struct gsm_subscriber *s, struct gsm_bts *bts, int reason)
-{
- int rc;
-
- /* FIXME: Migrate pending requests from one BSC to another */
- switch (reason) {
- case GSM_SUBSCRIBER_UPDATE_ATTACHED:
- s->group = bts->network->subscr_group;
- /* Indicate "attached to LAC" */
- s->lac = bts->location_area_code;
-
- LOGP(DMM, LOGL_INFO, "Subscriber %s ATTACHED LAC=%u\n",
- subscr_name(s), s->lac);
-
- /*
- * The below will set a new expire_lu but as a side-effect
- * the new lac will be saved in the database.
- */
- rc = subscr_update_expire_lu(s, bts);
- osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_ATTACHED, s);
- break;
- case GSM_SUBSCRIBER_UPDATE_DETACHED:
- /* Only detach if we are currently in this area */
- if (bts->location_area_code == s->lac)
- s->lac = GSM_LAC_RESERVED_DETACHED;
- LOGP(DMM, LOGL_INFO, "Subscriber %s DETACHED\n", subscr_name(s));
- rc = db_sync_subscriber(s);
- db_subscriber_update(s);
- osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_DETACHED, s);
- break;
- default:
- fprintf(stderr, "subscr_update with unknown reason: %d\n",
- reason);
- rc = db_sync_subscriber(s);
- db_subscriber_update(s);
- break;
- };
-
- return rc;
-}
-
-void subscr_update_from_db(struct gsm_subscriber *sub)
-{
- db_subscriber_update(sub);
-}
-
-static void subscr_expire_callback(void *data, long long unsigned int id)
-{
- struct gsm_network *net = data;
- struct gsm_subscriber *s = subscr_get_by_id(net->subscr_group, id);
- struct gsm_subscriber_connection *conn = connection_for_subscr(s);
-
- /*
- * The subscriber is active and the phone stopped the timer. As
- * we don't want to periodically update the database for active
- * subscribers we will just do it when the subscriber was selected
- * for expiration. This way on the next around another subscriber
- * will be selected.
- */
- if (conn && conn->expire_timer_stopped) {
- LOGP(DMM, LOGL_DEBUG, "Not expiring subscriber %s (ID %llu)\n",
- subscr_name(s), id);
- subscr_update_expire_lu(s, conn->bts);
- subscr_put(s);
- return;
- }
-
-
- LOGP(DMM, LOGL_NOTICE, "Expiring inactive subscriber %s (ID %llu)\n",
- subscr_name(s), id);
- s->lac = GSM_LAC_RESERVED_DETACHED;
- db_sync_subscriber(s);
-
- subscr_put(s);
-}
-
-void subscr_expire(struct gsm_subscriber_group *sgrp)
-{
- db_subscriber_expire(sgrp->net, subscr_expire_callback);
-}
-
-struct gsm_subscriber_connection *connection_for_subscr(struct gsm_subscriber *subscr)
+struct gsm_subscriber_connection *connection_for_subscr(struct vlr_subscr *vsub)
{
- /* FIXME: replace this with a backpointer in gsm_subscriber? */
- struct gsm_network *net = subscr->group->net;
+ struct gsm_network *net = vsub->vlr->user_ctx;
struct gsm_subscriber_connection *conn;
llist_for_each_entry(conn, &net->subscr_conns, entry) {
- if (conn->subscr == subscr)
+ if (conn->vsub == vsub)
return conn;
}