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[sccp] Create a method to create RLSD messages.

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This commit is contained in:
Holger Hans Peter Freyther
2010-05-16 18:33:26 +08:00
parent 466c40bec2
commit 01ffc204f3
2 changed files with 22 additions and 3 deletions
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1
openbsc/include/sccp/sccp.h
View File

@@ -150,6 +150,7 @@ struct sccp_source_reference sccp_src_ref_from_int(u_int32_t);
struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause, uint8_t *data, int length);
struct msgb *sccp_create_cc(struct sccp_source_reference *src_ref, struct sccp_source_reference *dst_ref);
struct msgb *sccp_create_rlsd(struct sccp_source_reference *src_ref, struct sccp_source_reference *dst_ref, int cause);
/**
* Below this are helper functions and structs for parsing SCCP messages

24
openbsc/src/sccp/sccp.c
View File

@@ -846,7 +846,8 @@ static int _sccp_send_connection_it(struct sccp_connection *conn)
return 0;
}
static int _sccp_send_connection_released(struct sccp_connection *conn, int cause)
struct msgb *sccp_create_rlsd(struct sccp_source_reference *src_ref,
struct sccp_source_reference *dst_ref, int cause)
{
struct msgb *msg;
struct sccp_connection_released *rel;
@@ -854,19 +855,36 @@ static int _sccp_send_connection_released(struct sccp_connection *conn, int caus
msg = msgb_alloc_headroom(SCCP_MSG_SIZE, SCCP_MSG_HEADROOM,
"sccp: connection released");
if (!msg) {
LOGP(DSCCP, LOGL_ERROR, "Failed to allocate RLSD.\n");
return NULL;
}
msg->l2h = &msg->data[0];
rel = (struct sccp_connection_released *) msgb_put(msg, sizeof(*rel));
rel->type = SCCP_MSG_TYPE_RLSD;
rel->release_cause = cause;
/* copy the source references */
memcpy(&rel->destination_local_reference, &conn->destination_local_reference,
memcpy(&rel->destination_local_reference, dst_ref,
sizeof(struct sccp_source_reference));
memcpy(&rel->source_local_reference, &conn->source_local_reference,
memcpy(&rel->source_local_reference, src_ref,
sizeof(struct sccp_source_reference));
data = msgb_put(msg, 1);
data[0] = SCCP_PNC_END_OF_OPTIONAL;
return msg;
}
static int _sccp_send_connection_released(struct sccp_connection *conn, int cause)
{
struct msgb *msg;
msg = sccp_create_rlsd(&conn->source_local_reference,
&conn->destination_local_reference,
cause);
if (!msg)
return -1;
_sccp_set_connection_state(conn, SCCP_CONNECTION_STATE_RELEASE);
_send_msg(msg);