[sccp] Make it optional to send data on a SCCP Connection Refuse
This can be used to send a Location Updating Reject down to the BSC when it is clear that a subscriber is not allowed.
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@ -148,7 +148,7 @@ extern const struct sockaddr_sccp sccp_ssn_bssap;
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u_int32_t sccp_src_ref_to_int(struct sccp_source_reference *ref);
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struct sccp_source_reference sccp_src_ref_from_int(u_int32_t);
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struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause);
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struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause, uint8_t *data, int length);
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/**
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* Below this are helper functions and structs for parsing SCCP messages
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@ -638,7 +638,7 @@ static void _sccp_set_connection_state(struct sccp_connection *connection, int n
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connection->state_cb(connection, old_state);
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}
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struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause)
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struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause, uint8_t *inp, int length)
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{
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struct msgb *msgb;
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struct sccp_connection_refused *ref;
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@ -660,6 +660,13 @@ struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause
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ref->cause = cause;
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ref->optional_start = 1;
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if (inp) {
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data = msgb_put(msgb, 1 + 1 + length);
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data[0] = SCCP_PNC_DATA;
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data[1] = length;
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memcpy(&data[2], inp, length);
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}
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data = msgb_put(msgb, 1);
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data[0] = SCCP_PNC_END_OF_OPTIONAL;
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return msgb;
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@ -667,7 +674,7 @@ struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause
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static int _sccp_send_refuse(struct sccp_source_reference *src_ref, int cause)
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{
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struct msgb *msgb = sccp_create_refuse(src_ref, cause);
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struct msgb *msgb = sccp_create_refuse(src_ref, cause, NULL, 0);
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if (!msgb)
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return -1;
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