| #ifndef _GPRS_NS_H |
| #define _GPRS_NS_H |
| |
| struct gprs_ns_hdr { |
| u_int8_t pdu_type; |
| u_int8_t data[0]; |
| } __attribute__((packed)); |
| |
| /* TS 08.16, Section 10.3.7, Table 14 */ |
| enum ns_pdu_type { |
| NS_PDUT_UNITDATA = 0x00, |
| NS_PDUT_RESET = 0x02, |
| NS_PDUT_RESET_ACK = 0x03, |
| NS_PDUT_BLOCK = 0x04, |
| NS_PDUT_BLOCK_ACK = 0x05, |
| NS_PDUT_UNBLOCK = 0x06, |
| NS_PDUT_UNBLOCK_ACK = 0x07, |
| NS_PDUT_STATUS = 0x08, |
| NS_PDUT_ALIVE = 0x0a, |
| NS_PDUT_ALIVE_ACK = 0x0b, |
| }; |
| |
| /* TS 08.16, Section 10.3, Table 12 */ |
| enum ns_ctrl_ie { |
| NS_IE_CAUSE = 0x00, |
| NS_IE_VCI = 0x01, |
| NS_IE_PDU = 0x02, |
| NS_IE_BVCI = 0x03, |
| NS_IE_NSEI = 0x04, |
| }; |
| |
| /* TS 08.16, Section 10.3.2, Table 13 */ |
| enum ns_cause { |
| NS_CAUSE_TRANSIT_FAIL = 0x00, |
| NS_CAUSE_OM_INTERVENTION = 0x01, |
| NS_CAUSE_EQUIP_FAIL = 0x02, |
| NS_CAUSE_NSVC_BLOCKED = 0x03, |
| NS_CAUSE_NSVC_UNKNOWN = 0x04, |
| NS_CAUSE_BVCI_UNKNOWN = 0x05, |
| NS_CAUSE_SEM_INCORR_PDU = 0x08, |
| NS_CAUSE_PDU_INCOMP_PSTATE = 0x0a, |
| NS_CAUSE_PROTO_ERR_UNSPEC = 0x0b, |
| NS_CAUSE_INVAL_ESSENT_IE = 0x0c, |
| NS_CAUSE_MISSING_ESSENT_IE = 0x0d, |
| }; |
| |
| /* a layer 1 entity transporting NS frames */ |
| struct gprs_ns_link { |
| union { |
| struct { |
| int fd; |
| } ip; |
| }; |
| }; |
| |
| |
| int gprs_ns_rcvmsg(struct msgb *msg); |
| |
| int gprs_ns_sendmsg(struct gprs_ns_link *link, u_int16_t bvci, |
| struct msgb *msg); |
| #endif |