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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* atmsap.h - ATM Service Access Point addressing definitions */ |
| 2 | |||
| 3 | /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */ |
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| 4 | |||
| 5 | |||
| 6 | #ifndef _LINUX_ATMSAP_H |
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| 7 | #define _LINUX_ATMSAP_H |
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| 8 | |||
| 9 | #include <linux/atmapi.h> |
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| 10 | |||
| 11 | /* |
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| 12 | * BEGIN_xx and END_xx markers are used for automatic generation of |
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| 13 | * documentation. Do not change them. |
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| 14 | */ |
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| 15 | |||
| 16 | |||
| 17 | /* |
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| 18 | * Layer 2 protocol identifiers |
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| 19 | */ |
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| 20 | |||
| 21 | /* BEGIN_L2 */ |
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| 22 | #define ATM_L2_NONE 0 /* L2 not specified */ |
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| 23 | #define ATM_L2_ISO1745 0x01 /* Basic mode ISO 1745 */ |
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| 24 | #define ATM_L2_Q291 0x02 /* ITU-T Q.291 (Rec. I.441) */ |
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| 25 | #define ATM_L2_X25_LL 0x06 /* ITU-T X.25, link layer */ |
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| 26 | #define ATM_L2_X25_ML 0x07 /* ITU-T X.25, multilink */ |
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| 27 | #define ATM_L2_LAPB 0x08 /* Extended LAPB, half-duplex (Rec. T.71) */ |
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| 28 | #define ATM_L2_HDLC_ARM 0x09 /* HDLC ARM (ISO/IEC 4335) */ |
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| 29 | #define ATM_L2_HDLC_NRM 0x0a /* HDLC NRM (ISO/IEC 4335) */ |
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| 30 | #define ATM_L2_HDLC_ABM 0x0b /* HDLC ABM (ISO/IEC 4335) */ |
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| 31 | #define ATM_L2_ISO8802 0x0c /* LAN LLC (ISO/IEC 8802/2) */ |
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| 32 | #define ATM_L2_X75 0x0d /* ITU-T X.75, SLP */ |
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| 33 | #define ATM_L2_Q922 0x0e /* ITU-T Q.922 */ |
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| 34 | #define ATM_L2_USER 0x10 /* user-specified */ |
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| 35 | #define ATM_L2_ISO7776 0x11 /* ISO 7776 DTE-DTE */ |
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| 36 | /* END_L2 */ |
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| 37 | |||
| 38 | |||
| 39 | /* |
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| 40 | * Layer 3 protocol identifiers |
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| 41 | */ |
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| 42 | |||
| 43 | /* BEGIN_L3 */ |
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| 44 | #define ATM_L3_NONE 0 /* L3 not specified */ |
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| 45 | #define ATM_L3_X25 0x06 /* ITU-T X.25, packet layer */ |
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| 46 | #define ATM_L3_ISO8208 0x07 /* ISO/IEC 8208 */ |
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| 47 | #define ATM_L3_X223 0x08 /* ITU-T X.223 | ISO/IEC 8878 */ |
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| 48 | #define ATM_L3_ISO8473 0x09 /* ITU-T X.233 | ISO/IEC 8473 */ |
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| 49 | #define ATM_L3_T70 0x0a /* ITU-T T.70 minimum network layer */ |
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| 50 | #define ATM_L3_TR9577 0x0b /* ISO/IEC TR 9577 */ |
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| 51 | #define ATM_L3_H310 0x0c /* ITU-T Recommendation H.310 */ |
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| 52 | #define ATM_L3_H321 0x0d /* ITU-T Recommendation H.321 */ |
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| 53 | #define ATM_L3_USER 0x10 /* user-specified */ |
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| 54 | /* END_L3 */ |
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| 55 | |||
| 56 | |||
| 57 | /* |
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| 58 | * High layer identifiers |
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| 59 | */ |
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| 60 | |||
| 61 | /* BEGIN_HL */ |
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| 62 | #define ATM_HL_NONE 0 /* HL not specified */ |
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| 63 | #define ATM_HL_ISO 0x01 /* ISO */ |
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| 64 | #define ATM_HL_USER 0x02 /* user-specific */ |
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| 65 | #define ATM_HL_HLP 0x03 /* high layer profile - UNI 3.0 only */ |
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| 66 | #define ATM_HL_VENDOR 0x04 /* vendor-specific application identifier */ |
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| 67 | /* END_HL */ |
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| 68 | |||
| 69 | |||
| 70 | /* |
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| 71 | * ITU-T coded mode of operation |
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| 72 | */ |
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| 73 | |||
| 74 | /* BEGIN_IMD */ |
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| 75 | #define ATM_IMD_NONE 0 /* mode not specified */ |
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| 76 | #define ATM_IMD_NORMAL 1 /* normal mode of operation */ |
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| 77 | #define ATM_IMD_EXTENDED 2 /* extended mode of operation */ |
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| 78 | /* END_IMD */ |
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| 79 | |||
| 80 | /* |
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| 81 | * H.310 code points |
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| 82 | */ |
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| 83 | |||
| 84 | #define ATM_TT_NONE 0 /* terminal type not specified */ |
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| 85 | #define ATM_TT_RX 1 /* receive only */ |
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| 86 | #define ATM_TT_TX 2 /* send only */ |
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| 87 | #define ATM_TT_RXTX 3 /* receive and send */ |
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| 88 | |||
| 89 | #define ATM_MC_NONE 0 /* no multiplexing */ |
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| 90 | #define ATM_MC_TS 1 /* transport stream (TS) */ |
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| 91 | #define ATM_MC_TS_FEC 2 /* transport stream with forward error corr. */ |
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| 92 | #define ATM_MC_PS 3 /* program stream (PS) */ |
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| 93 | #define ATM_MC_PS_FEC 4 /* program stream with forward error corr. */ |
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| 94 | #define ATM_MC_H221 5 /* ITU-T Rec. H.221 */ |
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| 95 | |||
| 96 | /* |
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| 97 | * SAP structures |
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| 98 | */ |
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| 99 | |||
| 100 | #define ATM_MAX_HLI 8 /* maximum high-layer information length */ |
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| 101 | |||
| 102 | |||
| 103 | struct atm_blli { |
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| 104 | unsigned char l2_proto; /* layer 2 protocol */ |
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| 105 | union { |
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| 106 | struct { |
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| 107 | unsigned char mode; /* mode of operation (ATM_IMD_xxx), 0 if */ |
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| 108 | /* absent */ |
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| 109 | unsigned char window; /* window size (k), 1-127 (0 to omit) */ |
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| 110 | } itu; /* ITU-T encoding */ |
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| 111 | unsigned char user; /* user-specified l2 information */ |
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| 112 | } l2; |
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| 113 | unsigned char l3_proto; /* layer 3 protocol */ |
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| 114 | union { |
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| 115 | struct { |
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| 116 | unsigned char mode; /* mode of operation (ATM_IMD_xxx), 0 if */ |
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| 117 | /* absent */ |
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| 118 | unsigned char def_size; /* default packet size (log2), 4-12 (0 to */ |
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| 119 | /* omit) */ |
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| 120 | unsigned char window;/* packet window size, 1-127 (0 to omit) */ |
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| 121 | } itu; /* ITU-T encoding */ |
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| 122 | unsigned char user; /* user specified l3 information */ |
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| 123 | struct { /* if l3_proto = ATM_L3_H310 */ |
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| 124 | unsigned char term_type; /* terminal type */ |
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| 125 | unsigned char fw_mpx_cap; /* forward multiplexing capability */ |
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| 126 | /* only if term_type != ATM_TT_NONE */ |
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| 127 | unsigned char bw_mpx_cap; /* backward multiplexing capability */ |
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| 128 | /* only if term_type != ATM_TT_NONE */ |
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| 129 | } h310; |
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| 130 | struct { /* if l3_proto = ATM_L3_TR9577 */ |
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| 131 | unsigned char ipi; /* initial protocol id */ |
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| 132 | unsigned char snap[5];/* IEEE 802.1 SNAP identifier */ |
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| 133 | /* (only if ipi == NLPID_IEEE802_1_SNAP) */ |
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| 134 | } tr9577; |
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| 135 | } l3; |
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| 136 | } __ATM_API_ALIGN; |
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| 137 | |||
| 138 | |||
| 139 | struct atm_bhli { |
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| 140 | unsigned char hl_type; /* high layer information type */ |
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| 141 | unsigned char hl_length; /* length (only if hl_type == ATM_HL_USER || */ |
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| 142 | /* hl_type == ATM_HL_ISO) */ |
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| 143 | unsigned char hl_info[ATM_MAX_HLI];/* high layer information */ |
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| 144 | }; |
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| 145 | |||
| 146 | |||
| 147 | #define ATM_MAX_BLLI 3 /* maximum number of BLLI elements */ |
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| 148 | |||
| 149 | |||
| 150 | struct atm_sap { |
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| 151 | struct atm_bhli bhli; /* local SAP, high-layer information */ |
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| 152 | struct atm_blli blli[ATM_MAX_BLLI] __ATM_API_ALIGN; |
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| 153 | /* local SAP, low-layer info */ |
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| 154 | }; |
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| 155 | |||
| 156 | |||
| 157 | static __inline__ int blli_in_use(struct atm_blli blli) |
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| 158 | { |
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| 159 | return blli.l2_proto || blli.l3_proto; |
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| 160 | } |
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| 161 | |||
| 162 | #endif |