package/broadcom-wl/src/driver/proto/bcmeth.h

   1 /*
   2  * Broadcom Ethernettype  protocol definitions
   3  *
   4  * Copyright 2007, Broadcom Corporation
   5  * All Rights Reserved.
   6  *
   7  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   8  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
   9  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  10  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  11  *
  12  */
  13
  14 /*
  15  * Broadcom Ethernet protocol defines
  16  */
  17
  18 #ifndef _BCMETH_H_
  19 #define _BCMETH_H_
  20
  21 /* enable structure packing */
  22 #if defined(__GNUC__)
  23 #define PACKED  __attribute__((packed))
  24 #else
  25 #pragma pack(1)
  26 #define PACKED
  27 #endif
  28
  29 /* ETHER_TYPE_BRCM is defined in ethernet.h */
  30
  31 /*
  32  * Following the 2byte BRCM ether_type is a 16bit BRCM subtype field
  33  * in one of two formats: (only subtypes 32768-65535 are in use now)
  34  *
  35  * subtypes 0-32767:
  36  *     8 bit subtype (0-127)
  37  *     8 bit length in bytes (0-255)
  38  *
  39  * subtypes 32768-65535:
  40  *     16 bit big-endian subtype
  41  *     16 bit big-endian length in bytes (0-65535)
  42  *
  43  * length is the number of additional bytes beyond the 4 or 6 byte header
  44  *
  45  * Reserved values:
  46  * 0 reserved
  47  * 5-15 reserved for iLine protocol assignments
  48  * 17-126 reserved, assignable
  49  * 127 reserved
  50  * 32768 reserved
  51  * 32769-65534 reserved, assignable
  52  * 65535 reserved
  53  */
  54
  55 /*
  56  * While adding the subtypes and their specific processing code make sure
  57  * bcmeth_bcm_hdr_t is the first data structure in the user specific data structure definition
  58  */
  59
  60 #define BCMILCP_SUBTYPE_RATE            1
  61 #define BCMILCP_SUBTYPE_LINK            2
  62 #define BCMILCP_SUBTYPE_CSA             3
  63 #define BCMILCP_SUBTYPE_LARQ            4
  64 #define BCMILCP_SUBTYPE_VENDOR          5
  65 #define BCMILCP_SUBTYPE_FLH             17
  66
  67 #define BCMILCP_SUBTYPE_VENDOR_LONG     32769
  68 #define BCMILCP_SUBTYPE_CERT            32770
  69 #define BCMILCP_SUBTYPE_SES             32771
  70
  71
  72 #define BCMILCP_BCM_SUBTYPE_RESERVED    0
  73 #define BCMILCP_BCM_SUBTYPE_EVENT               1
  74 #define BCMILCP_BCM_SUBTYPE_SES                 2
  75 /*
  76  * The EAPOL type is not used anymore. Instead EAPOL messages are now embedded
  77  * within BCMILCP_BCM_SUBTYPE_EVENT type messages
  78  */
  79 /* #define BCMILCP_BCM_SUBTYPE_EAPOL            3 */
  80
  81 #define BCMILCP_BCM_SUBTYPEHDR_MINLENGTH        8
  82 #define BCMILCP_BCM_SUBTYPEHDR_VERSION          0
  83
  84 /* These fields are stored in network order */
  85 typedef  struct bcmeth_hdr
  86 {
  87         uint16  subtype;        /* Vendor specific..32769 */
  88         uint16  length;
  89         uint8   version;        /* Version is 0 */
  90         uint8   oui[3];         /* Broadcom OUI */
  91         /* user specific Data */
  92         uint16  usr_subtype;
  93 } PACKED bcmeth_hdr_t;
  94
  95 #undef PACKED
  96 #if !defined(__GNUC__)
  97 #pragma pack()
  98 #endif
  99
 100 #endif  /*  _BCMETH_H_ */