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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* atm.h - general ATM declarations */ |
| 2 | |||
| 3 | /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */ |
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| 4 | |||
| 5 | |||
| 6 | /* |
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| 7 | * WARNING: User-space programs should not #include <linux/atm.h> directly. |
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| 8 | * Instead, #include <atm.h> |
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| 9 | */ |
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| 10 | |||
| 11 | #ifndef _LINUX_ATM_H |
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| 12 | #define _LINUX_ATM_H |
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| 13 | |||
| 14 | /* |
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| 15 | * BEGIN_xx and END_xx markers are used for automatic generation of |
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| 16 | * documentation. Do not change them. |
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| 17 | */ |
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| 18 | |||
| 19 | #ifdef __KERNEL__ |
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| 20 | #include <linux/socket.h> |
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| 21 | #include <linux/types.h> |
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| 22 | #endif |
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| 23 | #include <linux/atmapi.h> |
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| 24 | #include <linux/atmsap.h> |
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| 25 | #include <linux/atmioc.h> |
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| 26 | |||
| 27 | |||
| 28 | /* general ATM constants */ |
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| 29 | #define ATM_CELL_SIZE 53 /* ATM cell size incl. header */ |
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| 30 | #define ATM_CELL_PAYLOAD 48 /* ATM payload size */ |
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| 31 | #define ATM_AAL0_SDU 52 /* AAL0 SDU size */ |
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| 32 | #define ATM_MAX_AAL34_PDU 65535 /* maximum AAL3/4 PDU payload */ |
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| 33 | #define ATM_AAL5_TRAILER 8 /* AAL5 trailer size */ |
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| 34 | #define ATM_MAX_AAL5_PDU 65535 /* maximum AAL5 PDU payload */ |
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| 35 | #define ATM_MAX_CDV 9999 /* maximum (default) CDV */ |
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| 36 | #define ATM_NOT_RSV_VCI 32 /* first non-reserved VCI value */ |
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| 37 | |||
| 38 | #define ATM_MAX_VPI 255 /* maximum VPI at the UNI */ |
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| 39 | #define ATM_MAX_VPI_NNI 4096 /* maximum VPI at the NNI */ |
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| 40 | #define ATM_MAX_VCI 65535 /* maximum VCI */ |
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| 41 | |||
| 42 | |||
| 43 | /* "protcol" values for the socket system call */ |
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| 44 | #define ATM_NO_AAL 0 /* AAL not specified */ |
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| 45 | #define ATM_AAL0 13 /* "raw" ATM cells */ |
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| 46 | #define ATM_AAL1 1 /* AAL1 (CBR) */ |
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| 47 | #define ATM_AAL2 2 /* AAL2 (VBR) */ |
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| 48 | #define ATM_AAL34 3 /* AAL3/4 (data) */ |
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| 49 | #define ATM_AAL5 5 /* AAL5 (data) */ |
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| 50 | |||
| 51 | /* |
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| 52 | * socket option name coding functions |
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| 53 | * |
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| 54 | * Note that __SO_ENCODE and __SO_LEVEL are somewhat a hack since the |
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| 55 | * << 22 only reserves 9 bits for the level. On some architectures |
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| 56 | * SOL_SOCKET is 0xFFFF, so that's a bit of a problem |
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| 57 | */ |
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| 58 | |||
| 59 | #define __SO_ENCODE(l,n,t) ((((l) & 0x1FF) << 22) | ((n) << 16) | \ |
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| 60 | sizeof(t)) |
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| 61 | #define __SO_LEVEL_MATCH(c,m) (((c) >> 22) == ((m) & 0x1FF)) |
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| 62 | #define __SO_NUMBER(c) (((c) >> 16) & 0x3f) |
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| 63 | #define __SO_SIZE(c) ((c) & 0x3fff) |
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| 64 | |||
| 65 | /* |
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| 66 | * ATM layer |
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| 67 | */ |
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| 68 | |||
| 69 | #define SO_SETCLP __SO_ENCODE(SOL_ATM,0,int) |
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| 70 | /* set CLP bit value - TODO */ |
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| 71 | #define SO_CIRANGE __SO_ENCODE(SOL_ATM,1,struct atm_cirange) |
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| 72 | /* connection identifier range; socket must be |
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| 73 | bound or connected */ |
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| 74 | #define SO_ATMQOS __SO_ENCODE(SOL_ATM,2,struct atm_qos) |
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| 75 | /* Quality of Service setting */ |
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| 76 | #define SO_ATMSAP __SO_ENCODE(SOL_ATM,3,struct atm_sap) |
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| 77 | /* Service Access Point */ |
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| 78 | #define SO_ATMPVC __SO_ENCODE(SOL_ATM,4,struct sockaddr_atmpvc) |
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| 79 | /* "PVC" address (also for SVCs); get only */ |
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| 80 | |||
| 81 | /* |
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| 82 | * Note @@@: since the socket layers don't really distinguish the control and |
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| 83 | * the data plane but generally seems to be data plane-centric, any layer is |
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| 84 | * about equally wrong for the SAP. If you have a better idea about this, |
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| 85 | * please speak up ... |
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| 86 | */ |
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| 87 | |||
| 88 | |||
| 89 | /* ATM cell header (for AAL0) */ |
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| 90 | |||
| 91 | /* BEGIN_CH */ |
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| 92 | #define ATM_HDR_GFC_MASK 0xf0000000 |
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| 93 | #define ATM_HDR_GFC_SHIFT 28 |
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| 94 | #define ATM_HDR_VPI_MASK 0x0ff00000 |
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| 95 | #define ATM_HDR_VPI_SHIFT 20 |
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| 96 | #define ATM_HDR_VCI_MASK 0x000ffff0 |
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| 97 | #define ATM_HDR_VCI_SHIFT 4 |
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| 98 | #define ATM_HDR_PTI_MASK 0x0000000e |
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| 99 | #define ATM_HDR_PTI_SHIFT 1 |
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| 100 | #define ATM_HDR_CLP 0x00000001 |
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| 101 | /* END_CH */ |
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| 102 | |||
| 103 | |||
| 104 | /* PTI codings */ |
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| 105 | |||
| 106 | /* BEGIN_PTI */ |
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| 107 | #define ATM_PTI_US0 0 /* user data cell, congestion not exp, SDU-type 0 */ |
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| 108 | #define ATM_PTI_US1 1 /* user data cell, congestion not exp, SDU-type 1 */ |
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| 109 | #define ATM_PTI_UCES0 2 /* user data cell, cong. experienced, SDU-type 0 */ |
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| 110 | #define ATM_PTI_UCES1 3 /* user data cell, cong. experienced, SDU-type 1 */ |
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| 111 | #define ATM_PTI_SEGF5 4 /* segment OAM F5 flow related cell */ |
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| 112 | #define ATM_PTI_E2EF5 5 /* end-to-end OAM F5 flow related cell */ |
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| 113 | #define ATM_PTI_RSV_RM 6 /* reserved for traffic control/resource mgmt */ |
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| 114 | #define ATM_PTI_RSV 7 /* reserved */ |
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| 115 | /* END_PTI */ |
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| 116 | |||
| 117 | |||
| 118 | /* |
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| 119 | * The following items should stay in linux/atm.h, which should be linked to |
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| 120 | * netatm/atm.h |
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| 121 | */ |
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| 122 | |||
| 123 | /* Traffic description */ |
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| 124 | |||
| 125 | #define ATM_NONE 0 /* no traffic */ |
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| 126 | #define ATM_UBR 1 |
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| 127 | #define ATM_CBR 2 |
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| 128 | #define ATM_VBR 3 |
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| 129 | #define ATM_ABR 4 |
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| 130 | #define ATM_ANYCLASS 5 /* compatible with everything */ |
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| 131 | |||
| 132 | #define ATM_MAX_PCR -1 /* maximum available PCR */ |
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| 133 | |||
| 134 | struct atm_trafprm { |
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| 135 | unsigned char traffic_class; /* traffic class (ATM_UBR, ...) */ |
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| 136 | int max_pcr; /* maximum PCR in cells per second */ |
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| 137 | int pcr; /* desired PCR in cells per second */ |
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| 138 | int min_pcr; /* minimum PCR in cells per second */ |
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| 139 | int max_cdv; /* maximum CDV in microseconds */ |
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| 140 | int max_sdu; /* maximum SDU in bytes */ |
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| 141 | /* extra params for ABR */ |
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| 142 | unsigned int icr; /* Initial Cell Rate (24-bit) */ |
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| 143 | unsigned int tbe; /* Transient Buffer Exposure (24-bit) */ |
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| 144 | unsigned int frtt : 24; /* Fixed Round Trip Time (24-bit) */ |
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| 145 | unsigned int rif : 4; /* Rate Increment Factor (4-bit) */ |
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| 146 | unsigned int rdf : 4; /* Rate Decrease Factor (4-bit) */ |
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| 147 | unsigned int nrm_pres :1; /* nrm present bit */ |
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| 148 | unsigned int trm_pres :1; /* rm present bit */ |
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| 149 | unsigned int adtf_pres :1; /* adtf present bit */ |
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| 150 | unsigned int cdf_pres :1; /* cdf present bit*/ |
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| 151 | unsigned int nrm :3; /* Max # of Cells for each forward RM cell (3-bit) */ |
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| 152 | unsigned int trm :3; /* Time between forward RM cells (3-bit) */ |
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| 153 | unsigned int adtf :10; /* ACR Decrease Time Factor (10-bit) */ |
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| 154 | unsigned int cdf :3; /* Cutoff Decrease Factor (3-bit) */ |
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| 155 | unsigned int spare :9; /* spare bits */ |
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| 156 | }; |
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| 157 | |||
| 158 | struct atm_qos { |
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| 159 | struct atm_trafprm txtp; /* parameters in TX direction */ |
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| 160 | struct atm_trafprm rxtp __ATM_API_ALIGN; |
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| 161 | /* parameters in RX direction */ |
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| 162 | unsigned char aal __ATM_API_ALIGN; |
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| 163 | }; |
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| 164 | |||
| 165 | /* PVC addressing */ |
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| 166 | |||
| 167 | #define ATM_ITF_ANY -1 /* "magic" PVC address values */ |
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| 168 | #define ATM_VPI_ANY -1 |
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| 169 | #define ATM_VCI_ANY -1 |
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| 170 | #define ATM_VPI_UNSPEC -2 |
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| 171 | #define ATM_VCI_UNSPEC -2 |
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| 172 | |||
| 173 | |||
| 174 | struct sockaddr_atmpvc { |
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| 175 | unsigned short sap_family; /* address family, AF_ATMPVC */ |
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| 176 | struct { /* PVC address */ |
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| 177 | short itf; /* ATM interface */ |
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| 178 | short vpi; /* VPI (only 8 bits at UNI) */ |
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| 179 | int vci; /* VCI (only 16 bits at UNI) */ |
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| 180 | } sap_addr __ATM_API_ALIGN; /* PVC address */ |
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| 181 | }; |
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| 182 | |||
| 183 | /* SVC addressing */ |
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| 184 | |||
| 185 | #define ATM_ESA_LEN 20 /* ATM End System Address length */ |
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| 186 | #define ATM_E164_LEN 12 /* maximum E.164 number length */ |
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| 187 | |||
| 188 | #define ATM_AFI_DCC 0x39 /* DCC ATM Format */ |
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| 189 | #define ATM_AFI_ICD 0x47 /* ICD ATM Format */ |
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| 190 | #define ATM_AFI_E164 0x45 /* E.164 ATM Format */ |
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| 191 | #define ATM_AFI_LOCAL 0x49 /* Local ATM Format */ |
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| 192 | |||
| 193 | #define ATM_AFI_DCC_GROUP 0xBD /* DCC ATM Group Format */ |
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| 194 | #define ATM_AFI_ICD_GROUP 0xC5 /* ICD ATM Group Format */ |
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| 195 | #define ATM_AFI_E164_GROUP 0xC3 /* E.164 ATM Group Format */ |
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| 196 | #define ATM_AFI_LOCAL_GROUP 0xC7 /* Local ATM Group Format */ |
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| 197 | |||
| 198 | #define ATM_LIJ_NONE 0 /* no leaf-initiated join */ |
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| 199 | #define ATM_LIJ 1 /* request joining */ |
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| 200 | #define ATM_LIJ_RPJ 2 /* set to root-prompted join */ |
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| 201 | #define ATM_LIJ_NJ 3 /* set to network join */ |
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| 202 | |||
| 203 | |||
| 204 | struct sockaddr_atmsvc { |
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| 205 | unsigned short sas_family; /* address family, AF_ATMSVC */ |
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| 206 | struct { /* SVC address */ |
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| 207 | unsigned char prv[ATM_ESA_LEN];/* private ATM address */ |
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| 208 | char pub[ATM_E164_LEN+1]; /* public address (E.164) */ |
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| 209 | /* unused addresses must be bzero'ed */ |
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| 210 | char lij_type; /* role in LIJ call; one of ATM_LIJ* */ |
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| 211 | uint32_t lij_id; /* LIJ call identifier */ |
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| 212 | } sas_addr __ATM_API_ALIGN; /* SVC address */ |
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| 213 | }; |
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| 214 | |||
| 215 | |||
| 216 | static __inline__ int atmsvc_addr_in_use(struct sockaddr_atmsvc addr) |
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| 217 | { |
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| 218 | return *addr.sas_addr.prv || *addr.sas_addr.pub; |
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| 219 | } |
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| 220 | |||
| 221 | |||
| 222 | static __inline__ int atmpvc_addr_in_use(struct sockaddr_atmpvc addr) |
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| 223 | { |
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| 224 | return addr.sap_addr.itf || addr.sap_addr.vpi || addr.sap_addr.vci; |
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| 225 | } |
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| 226 | |||
| 227 | |||
| 228 | /* |
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| 229 | * Some stuff for linux/sockios.h |
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| 230 | */ |
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| 231 | |||
| 232 | struct atmif_sioc { |
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| 233 | int number; |
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| 234 | int length; |
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| 235 | void *arg; |
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| 236 | }; |
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| 237 | |||
| 238 | typedef unsigned short atm_backend_t; |
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| 239 | #endif |