#ifndef __MME_CONTEXT__ #define __MME_CONTEXT__ #include "core_list.h" #include "core_errno.h" #include "core_net.h" #include "core_sha2.h" #include "core_hash.h" #include "3gpp_common.h" #include "nas_types.h" #include "gtp_xact.h" #include "mme_sm.h" #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ #define MAX_PLMN_ID 6 #define GRP_PER_MME 256 /* According to spec it is 65535 */ #define CODE_PER_MME 256 /* According to spec it is 256 */ typedef struct _served_gummei { c_uint32_t num_of_plmn_id; plmn_id_t plmn_id[MAX_PLMN_ID]; c_uint32_t num_of_mme_gid; c_uint16_t mme_gid[GRP_PER_MME]; c_uint32_t num_of_mme_code; c_uint8_t mme_code[CODE_PER_MME]; } srvd_gummei_t; typedef struct _mme_context_t { c_uint32_t s1ap_addr; /* MME S1AP local address */ c_uint16_t s1ap_port; /* MME S1AP local port */ net_sock_t *s1ap_sock; /* MME S1AP local listen socket */ c_uint32_t s11_addr; /* MME S11 local address */ c_uint16_t s11_port; /* MME S11 local port */ net_sock_t *s11_sock; /* MME S11 local listen socket */ msgq_id queue_id; /* Queue for processing MME control plane */ tm_service_t tm_service; /* Timer Service */ gtp_xact_ctx_t gtp_xact_ctx; /* GTP Transaction Context for MME */ c_uint32_t mme_ue_s1ap_id; /** mme_ue_s1ap_id generator */ plmn_id_t plmn_id; /* defined in 'nas_ies.h' * #define NAS_SECURITY_ALGORITHMS_EIA0 0 * #define NAS_SECURITY_ALGORITHMS_128_EEA1 1 * #define NAS_SECURITY_ALGORITHMS_128_EEA2 2 * #define NAS_SECURITY_ALGORITHMS_128_EEA3 3 */ c_uint8_t selected_enc_algorithm; /* defined in 'nas_ies.h' * #define NAS_SECURITY_ALGORITHMS_EIA0 0 * #define NAS_SECURITY_ALGORITHMS_128_EIA1 1 * #define NAS_SECURITY_ALGORITHMS_128_EIA1 2 * #define NAS_SECURITY_ALGORITHMS_128_EIA3 3 */ c_uint8_t selected_int_algorithm; /* S1SetupRequest */ c_uint16_t tracking_area_code; c_uint16_t default_paging_drx; /* S1SetupResponse */ srvd_gummei_t srvd_gummei; c_uint8_t relative_capacity; list_t sgw_list; list_t enb_list; list_t pdn_list;; hash_t *mme_ue_s1ap_id_hash; /* hash table for MME-UE-S1AP-ID */ } mme_context_t; typedef struct _mme_sgw_t { gtp_node_t gnode; /* SGW S11 remote GTPv2-C node */ } mme_sgw_t; typedef struct _mme_enb_t { lnode_t node; /**< A node of list_t */ c_uint32_t enb_id; /** eNB_ID received from eNB */ s1ap_sm_t s1ap_sm; net_sock_t *s1ap_sock; list_t ue_list; } mme_enb_t; typedef struct _mme_ue_t { lnode_t node; /**< A node of list_t */ /* State Machine */ emm_sm_t emm_sm; /* UE identity */ c_uint32_t enb_ue_s1ap_id; /** eNB-UE-S1AP-ID received from eNB */ c_uint32_t mme_ue_s1ap_id; /** MME-UE-S1AP-ID received from MME */ c_uint8_t imsi[MAX_IMSI_LEN]; int imsi_len; c_int8_t imsi_bcd[MAX_IMSI_BCD_LEN+1]; c_uint8_t msisdn[MAX_MSISDN_LEN]; int msisdn_len; c_uint8_t imei[MAX_IMEI_LEN]; int imei_len; /* UE Info */ plmn_id_t visited_plmn_id; /* Security Context */ int security_context_available; nas_ue_network_capability_t ue_network_capability; nas_ms_network_capability_t ms_network_capability; c_uint8_t xres[MAX_RES_LEN]; c_uint8_t xres_len; c_uint8_t kasme[SHA256_DIGEST_SIZE]; c_uint8_t knas_int[SHA256_DIGEST_SIZE/2]; c_uint8_t knas_enc[SHA256_DIGEST_SIZE/2]; c_uint32_t dl_count; union { struct { ED3(c_uint8_t spare;, c_uint16_t overflow;, c_uint8_t sqn;) } __attribute__ ((packed)); c_uint32_t i32; } ul_count; list_t esm_list; mme_enb_t *enb; pdn_t *pdn[MAX_NUM_OF_PDN]; int num_of_pdn; } mme_ue_t; typedef struct _mme_esm_t { lnode_t node; /**< A node of list_t */ c_uint8_t pti; /** Procedure Trasaction Identity */ esm_sm_t sm; mme_ue_t *ue; } mme_esm_t; CORE_DECLARE(status_t) mme_context_init(void); CORE_DECLARE(status_t) mme_context_final(void); CORE_DECLARE(mme_context_t*) mme_self(void); CORE_DECLARE(mme_sgw_t*) mme_sgw_add(void); CORE_DECLARE(status_t) mme_sgw_remove(mme_sgw_t *sgw); CORE_DECLARE(status_t) mme_sgw_remove_all(void); CORE_DECLARE(mme_sgw_t*) mme_sgw_find_by_node(gtp_node_t *gnode); CORE_DECLARE(mme_sgw_t*) mme_sgw_first(void); CORE_DECLARE(mme_sgw_t*) mme_sgw_next(mme_sgw_t *sgw); CORE_DECLARE(mme_enb_t*) mme_enb_add(net_sock_t *s1ap_sock); CORE_DECLARE(status_t) mme_enb_remove(mme_enb_t *enb); CORE_DECLARE(status_t) mme_enb_remove_all(void); CORE_DECLARE(mme_enb_t*) mme_enb_find_by_sock(net_sock_t *sock); CORE_DECLARE(mme_enb_t*) mme_enb_find_by_enb_id(c_uint32_t enb_id); CORE_DECLARE(mme_enb_t*) mme_enb_first(void); CORE_DECLARE(mme_enb_t*) mme_enb_next(mme_enb_t *enb); CORE_DECLARE(pdn_t*) mme_pdn_add(pdn_id_t id); CORE_DECLARE(status_t) mme_pdn_remove(pdn_t *pdn); CORE_DECLARE(status_t) mme_pdn_remove_all(void); CORE_DECLARE(pdn_t*) mme_pdn_find_by_id(pdn_id_t id); CORE_DECLARE(pdn_t*) mme_pdn_first(void); CORE_DECLARE(pdn_t*) mme_pdn_next(pdn_t *pdn); CORE_DECLARE(mme_ue_t*) mme_ue_add(mme_enb_t *enb); CORE_DECLARE(status_t) mme_ue_remove(mme_ue_t *ue); CORE_DECLARE(status_t) mme_ue_remove_all(); CORE_DECLARE(mme_ue_t*) mme_ue_find_by_mme_ue_s1ap_id( c_uint32_t mme_ue_s1ap_id); CORE_DECLARE(hash_index_t *) mme_ue_first(); CORE_DECLARE(hash_index_t *) mme_ue_next(hash_index_t *hi); CORE_DECLARE(mme_ue_t *) mme_ue_this(hash_index_t *hi); CORE_DECLARE(unsigned int) mme_ue_count(); CORE_DECLARE(status_t) mme_ue_remove_in_enb(mme_enb_t *enb); CORE_DECLARE(mme_ue_t*) mme_ue_find_by_enb_ue_s1ap_id( mme_enb_t *enb, c_uint32_t enb_ue_s1ap_id); CORE_DECLARE(mme_ue_t*) mme_ue_first_in_enb(mme_enb_t *enb); CORE_DECLARE(mme_ue_t*) mme_ue_next_in_enb(mme_ue_t *ue); CORE_DECLARE(mme_esm_t*) mme_esm_add(mme_ue_t *ue, c_uint8_t pti); CORE_DECLARE(status_t) mme_esm_remove(mme_esm_t *esm); CORE_DECLARE(status_t) mme_esm_remove_all(mme_ue_t *ue); CORE_DECLARE(mme_esm_t*) mme_esm_find_by_pti(mme_ue_t *ue, c_uint8_t pti); CORE_DECLARE(mme_esm_t*) mme_esm_first(mme_ue_t *ue); CORE_DECLARE(mme_esm_t*) mme_esm_next(mme_esm_t *esm); #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __MME_CONTEXT__ */