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osmo-msc
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bsc: Start to open a SCCP connection and prepare timers and such.

This commit is contained in:
Holger Hans Peter Freyther 2010-11-06 18:08:43 +01:00
parent 9b17c769b9
commit b8781d2cd5
2 changed files with 68 additions and 4 deletions
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10
openbsc/include/openbsc/osmo_bsc.h
View File

@ -5,7 +5,17 @@
#include "bsc_api.h"
struct sccp_connection;
struct osmo_bsc_sccp_con {
struct llist_head entry;
/* SCCP connection realted */
struct sccp_connection *sccp;
struct bsc_msc_connection *msc_con;
struct timer_list sccp_it_timeout;
struct timer_list sccp_cc_timeout;
uint8_t new_subscriber;
};

62
openbsc/src/bsc/osmo_bsc_sccp.c
View File

@ -21,6 +21,8 @@
*/
#include <openbsc/gsm_data.h>
#include <openbsc/osmo_bsc.h>
#include <openbsc/osmo_bsc_grace.h>
#include <openbsc/osmo_msc_data.h>
#include <openbsc/debug.h>
@ -30,6 +32,17 @@
#include <osmocom/sccp/sccp.h>
static LLIST_HEAD(active_connections);
static void msc_outgoing_sccp_data(struct sccp_connection *conn,
struct msgb *msg, unsigned int len)
{
}
static void msc_outgoing_sccp_state(struct sccp_connection *conn, int old_state)
{
}
static void msc_sccp_write_ipa(struct sccp_connection *conn, struct msgb *msg, void *data)
{
LOGP(DMSC, LOGL_ERROR, "Writing is not implemented.\n");
@ -78,8 +91,44 @@ int bsc_queue_for_msc(struct gsm_subscriber_connection *conn, struct msgb *msg)
int bsc_create_new_connection(struct gsm_subscriber_connection *conn)
{
LOGP(DMSC, LOGL_ERROR, "Not implemented yet.\n");
return -1;
struct gsm_network *net;
struct osmo_bsc_sccp_con *bsc_con;
struct sccp_connection *sccp;
net = conn->bts->network;
if (!net->msc_data->msc_con->is_authenticated) {
LOGP(DMSC, LOGL_ERROR, "Not connected to a MSC. Not forwarding data.\n");
return -1;
}
if (!bsc_grace_allow_new_connection(net)) {
LOGP(DMSC, LOGL_NOTICE, "BSC in grace period. No new connections.\n");
return -1;
}
sccp = sccp_connection_socket();
if (!sccp) {
LOGP(DMSC, LOGL_ERROR, "Failed to allocate memory.\n");
return -ENOMEM;
}
bsc_con = talloc_zero(conn->bts, struct osmo_bsc_sccp_con);
if (!bsc_con) {
LOGP(DMSC, LOGL_ERROR, "Failed to allocate.\n");
sccp_connection_free(sccp);
return -1;
}
/* callbacks */
sccp->state_cb = msc_outgoing_sccp_state;
sccp->data_cb = msc_outgoing_sccp_data;
sccp->data_ctx = bsc_con;
bsc_con->sccp = sccp;
bsc_con->msc_con = net->msc_data->msc_con;
llist_add(&bsc_con->entry, &active_connections);
conn->sccp_con = bsc_con;
return 0;
}
int bsc_open_connection(struct gsm_subscriber_connection *conn, struct msgb *msg)
@ -90,10 +139,15 @@ int bsc_open_connection(struct gsm_subscriber_connection *conn, struct msgb *msg
int bsc_delete_connection(struct gsm_subscriber_connection *conn)
{
if (!conn->sccp_con)
struct osmo_bsc_sccp_con *sccp = conn->sccp_con;
if (!sccp)
return 0;
talloc_free(conn->sccp_con);
llist_del(&sccp->entry);
bsc_del_timer(&sccp->sccp_it_timeout);
bsc_del_timer(&sccp->sccp_cc_timeout);
talloc_free(sccp);
conn->sccp_con = NULL;
return 0;
}