PentHertz
/
srsLTE
mirror of https://github.com/PentHertz/srsLTE.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Added support to sending error indication when receiving some S1AP messages in the wrong state

This commit is contained in:
Pedro Alvarez 2021-08-09 17:48:50 +01:00
parent 4836e90b2c
commit e68bdf3718
1 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
srsenb/src/stack/s1ap/s1ap.cc
View File

@ -712,6 +712,13 @@ bool s1ap::handle_unsuccessfuloutcome(const unsuccessful_outcome_s& msg)
bool s1ap::handle_s1setupresponse(const asn1::s1ap::s1_setup_resp_s& msg) bool s1ap::handle_s1setupresponse(const asn1::s1ap::s1_setup_resp_s& msg)
{ {
if (s1setup_proc.is_idle()) {
asn1::s1ap::cause_c cause;
cause.set_protocol().value = cause_protocol_opts::msg_not_compatible_with_receiver_state;
send_error_indication(cause);
return false;
}
s1setupresponse = msg; s1setupresponse = msg;
mme_connected = true; mme_connected = true;
s1_setup_proc_t::s1setupresult res; s1_setup_proc_t::s1setupresult res;
@ -1086,6 +1093,13 @@ bool s1ap::handle_uectxtreleasecommand(const ue_context_release_cmd_s& msg)
bool s1ap::handle_s1setupfailure(const asn1::s1ap::s1_setup_fail_s& msg) bool s1ap::handle_s1setupfailure(const asn1::s1ap::s1_setup_fail_s& msg)
{ {
if (s1setup_proc.is_idle()) {
asn1::s1ap::cause_c cause;
cause.set_protocol().value = cause_protocol_opts::msg_not_compatible_with_receiver_state;
send_error_indication(cause);
return false;
}
std::string cause = get_cause(msg.protocol_ies.cause.value); std::string cause = get_cause(msg.protocol_ies.cause.value);
logger.error("S1 Setup Failure. Cause: %s", cause.c_str()); logger.error("S1 Setup Failure. Cause: %s", cause.c_str());
srsran::console("S1 Setup Failure. Cause: %s\n", cause.c_str()); srsran::console("S1 Setup Failure. Cause: %s\n", cause.c_str());
@ -1099,6 +1113,14 @@ bool s1ap::handle_handover_preparation_failure(const ho_prep_fail_s& msg)
if (u == nullptr) { if (u == nullptr) {
return false; return false;
} }
if (u->ho_prep_proc.is_idle()) {
asn1::s1ap::cause_c cause;
cause.set_protocol().value = cause_protocol_opts::msg_not_compatible_with_receiver_state;
send_error_indication(cause);
return false;
}
u->ho_prep_proc.trigger(msg); u->ho_prep_proc.trigger(msg);
return true; return true;
} }
@ -1110,6 +1132,13 @@ bool s1ap::handle_handover_command(const asn1::s1ap::ho_cmd_s& msg)
if (u == nullptr) { if (u == nullptr) {
return false; return false;
} }
if (u->ho_prep_proc.is_idle()) {
asn1::s1ap::cause_c cause;
cause.set_protocol().value = cause_protocol_opts::msg_not_compatible_with_receiver_state;
send_error_indication(cause);
return false;
}
u->ho_prep_proc.trigger(msg); u->ho_prep_proc.trigger(msg);
return true; return true;
} }