include/uapi/linux/rxrpc.h

   1 /* Types and definitions for AF_RXRPC.
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11
  12 #ifndef _UAPI_LINUX_RXRPC_H
  13 #define _UAPI_LINUX_RXRPC_H
  14
  15 #include <linux/types.h>
  16 #include <linux/in.h>
  17 #include <linux/in6.h>
  18
  19 /*
  20  * RxRPC socket address
  21  */
  22 struct sockaddr_rxrpc {
  23         __kernel_sa_family_t    srx_family;     /* address family */
  24         __u16                   srx_service;    /* service desired */
  25         __u16                   transport_type; /* type of transport socket (SOCK_DGRAM) */
  26         __u16                   transport_len;  /* length of transport address */
  27         union {
  28                 __kernel_sa_family_t family;    /* transport address family */
  29                 struct sockaddr_in sin;         /* IPv4 transport address */
  30                 struct sockaddr_in6 sin6;       /* IPv6 transport address */
  31         } transport;
  32 };
  33
  34 /*
  35  * RxRPC socket options
  36  */
  37 #define RXRPC_SECURITY_KEY              1       /* [clnt] set client security key */
  38 #define RXRPC_SECURITY_KEYRING          2       /* [srvr] set ring of server security keys */
  39 #define RXRPC_EXCLUSIVE_CONNECTION      3       /* Deprecated; use RXRPC_EXCLUSIVE_CALL instead */
  40 #define RXRPC_MIN_SECURITY_LEVEL        4       /* minimum security level */
  41 #define RXRPC_UPGRADEABLE_SERVICE       5       /* Upgrade service[0] -> service[1] */
  42 #define RXRPC_SUPPORTED_CMSG            6       /* Get highest supported control message type */
  43
  44 /*
  45  * RxRPC control messages
  46  * - If neither abort or accept are specified, the message is a data message.
  47  * - terminal messages mean that a user call ID tag can be recycled
  48  * - s/r/- indicate whether these are applicable to sendmsg() and/or recvmsg()
  49  */
  50 enum rxrpc_cmsg_type {
  51         RXRPC_USER_CALL_ID      = 1,    /* sr: user call ID specifier */
  52         RXRPC_ABORT             = 2,    /* sr: abort request / notification [terminal] */
  53         RXRPC_ACK               = 3,    /* -r: [Service] RPC op final ACK received [terminal] */
  54         RXRPC_NET_ERROR         = 5,    /* -r: network error received [terminal] */
  55         RXRPC_BUSY              = 6,    /* -r: server busy received [terminal] */
  56         RXRPC_LOCAL_ERROR       = 7,    /* -r: local error generated [terminal] */
  57         RXRPC_NEW_CALL          = 8,    /* -r: [Service] new incoming call notification */
  58         RXRPC_ACCEPT            = 9,    /* s-: [Service] accept request */
  59         RXRPC_EXCLUSIVE_CALL    = 10,   /* s-: Call should be on exclusive connection */
  60         RXRPC_UPGRADE_SERVICE   = 11,   /* s-: Request service upgrade for client call */
  61         RXRPC_TX_LENGTH         = 12,   /* s-: Total length of Tx data */
  62         RXRPC_SET_CALL_TIMEOUT  = 13,   /* s-: Set one or more call timeouts */
  63         RXRPC__SUPPORTED
  64 };
  65
  66 /*
  67  * RxRPC security levels
  68  */
  69 #define RXRPC_SECURITY_PLAIN    0       /* plain secure-checksummed packets only */
  70 #define RXRPC_SECURITY_AUTH     1       /* authenticated packets */
  71 #define RXRPC_SECURITY_ENCRYPT  2       /* encrypted packets */
  72
  73 /*
  74  * RxRPC security indices
  75  */
  76 #define RXRPC_SECURITY_NONE     0       /* no security protocol */
  77 #define RXRPC_SECURITY_RXKAD    2       /* kaserver or kerberos 4 */
  78 #define RXRPC_SECURITY_RXGK     4       /* gssapi-based */
  79 #define RXRPC_SECURITY_RXK5     5       /* kerberos 5 */
  80
  81 /*
  82  * RxRPC-level abort codes
  83  */
  84 #define RX_CALL_DEAD            -1      /* call/conn has been inactive and is shut down */
  85 #define RX_INVALID_OPERATION    -2      /* invalid operation requested / attempted */
  86 #define RX_CALL_TIMEOUT         -3      /* call timeout exceeded */
  87 #define RX_EOF                  -4      /* unexpected end of data on read op */
  88 #define RX_PROTOCOL_ERROR       -5      /* low-level protocol error */
  89 #define RX_USER_ABORT           -6      /* generic user abort */
  90 #define RX_ADDRINUSE            -7      /* UDP port in use */
  91 #define RX_DEBUGI_BADTYPE       -8      /* bad debugging packet type */
  92
  93 /*
  94  * (un)marshalling abort codes (rxgen)
  95  */
  96 #define RXGEN_CC_MARSHAL        -450
  97 #define RXGEN_CC_UNMARSHAL      -451
  98 #define RXGEN_SS_MARSHAL        -452
  99 #define RXGEN_SS_UNMARSHAL      -453
 100 #define RXGEN_DECODE            -454
 101 #define RXGEN_OPCODE            -455
 102 #define RXGEN_SS_XDRFREE        -456
 103 #define RXGEN_CC_XDRFREE        -457
 104
 105 /*
 106  * Rx kerberos security abort codes
 107  * - unfortunately we have no generalised security abort codes to say things
 108  *   like "unsupported security", so we have to use these instead and hope the
 109  *   other side understands
 110  */
 111 #define RXKADINCONSISTENCY      19270400        /* security module structure inconsistent */
 112 #define RXKADPACKETSHORT        19270401        /* packet too short for security challenge */
 113 #define RXKADLEVELFAIL          19270402        /* security level negotiation failed */
 114 #define RXKADTICKETLEN          19270403        /* ticket length too short or too long */
 115 #define RXKADOUTOFSEQUENCE      19270404        /* packet had bad sequence number */
 116 #define RXKADNOAUTH             19270405        /* caller not authorised */
 117 #define RXKADBADKEY             19270406        /* illegal key: bad parity or weak */
 118 #define RXKADBADTICKET          19270407        /* security object was passed a bad ticket */
 119 #define RXKADUNKNOWNKEY         19270408        /* ticket contained unknown key version number */
 120 #define RXKADEXPIRED            19270409        /* authentication expired */
 121 #define RXKADSEALEDINCON        19270410        /* sealed data inconsistent */
 122 #define RXKADDATALEN            19270411        /* user data too long */
 123 #define RXKADILLEGALLEVEL       19270412        /* caller not authorised to use encrypted conns */
 124
 125 #endif /* _UAPI_LINUX_RXRPC_H */