diff options
Diffstat (limited to 'include/osmocom/gsm')
| -rw-r--r-- | include/osmocom/gsm/gsup.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/osmocom/gsm/gsup.h b/include/osmocom/gsm/gsup.h index 9a583aae..7f304a3c 100644 --- a/include/osmocom/gsm/gsup.h +++ b/include/osmocom/gsm/gsup.h @@ -68,6 +68,7 @@ enum osmo_gsup_iei { OSMO_GSUP_FREEZE_PTMSI_IE = 0x07, OSMO_GSUP_MSISDN_IE = 0x08, OSMO_GSUP_HLR_NUMBER_IE = 0x09, + OSMO_GSUP_MESSAGE_CLASS_IE = 0x0a, OSMO_GSUP_PDP_CONTEXT_ID_IE = 0x10, OSMO_GSUP_PDP_TYPE_IE = 0x11, OSMO_GSUP_ACCESS_POINT_NAME_IE = 0x12, @@ -229,6 +230,21 @@ struct osmo_gsup_pdp_info { size_t pdp_charg_enc_len; }; +enum osmo_gsup_message_class { + OSMO_GSUP_MESSAGE_CLASS_UNSET = 0, + OSMO_GSUP_MESSAGE_CLASS_SUBSCRIBER_MANAGEMENT = 1, + OSMO_GSUP_MESSAGE_CLASS_SMS = 2, + OSMO_GSUP_MESSAGE_CLASS_USSD = 3, + OSMO_GSUP_MESSAGE_CLASS_INTER_MSC = 4, + /* Keep this as last entry with a value of max(enum osmo_gsup_message_class) + 1. + * This value shall serve as the size for an array to aid de-muxing all known GSUP classes. */ + OSMO_GSUP_MESSAGE_CLASS_ARRAYSIZE +}; + +extern const struct value_string osmo_gsup_message_class_names[]; +static inline const char *osmo_gsup_message_class_name(enum osmo_gsup_message_class val) +{ return get_value_string(osmo_gsup_message_class_names, val); } + /*! parsed/decoded GSUP protocol message */ struct osmo_gsup_message { enum osmo_gsup_message_type message_type; @@ -286,6 +302,11 @@ struct osmo_gsup_message { const uint8_t *imei_enc; size_t imei_enc_len; enum osmo_gsup_imei_result imei_result; + + /*! Indicate the message class to trivially dispatch incoming GSUP messages to the right code paths. + * Inter-MSC messages are *required* to set a class = OSMO_GSUP_MESSAGE_CLASS_INTER_MSC. For older message classes, this may + * be omitted (for backwards compatibility only -- if in doubt, include it). */ + enum osmo_gsup_message_class message_class; }; int osmo_gsup_decode(const uint8_t *data, size_t data_len, |