include/linux/rxrpc.h

   1 /* AF_RXRPC parameters
   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 License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #ifndef _LINUX_RXRPC_H
  13 #define _LINUX_RXRPC_H
  14
  15 #include <linux/in.h>
  16 #include <linux/in6.h>
  17
  18 /*
  19  * RxRPC socket address
  20  */
  21 struct sockaddr_rxrpc {
  22         sa_family_t     srx_family;     /* address family */
  23         u16             srx_service;    /* service desired */
  24         u16             transport_type; /* type of transport socket (SOCK_DGRAM) */
  25         u16             transport_len;  /* length of transport address */
  26         union {
  27                 sa_family_t family;             /* transport address family */
  28                 struct sockaddr_in sin;         /* IPv4 transport address */
  29                 struct sockaddr_in6 sin6;       /* IPv6 transport address */
  30         } transport;
  31 };
  32
  33 /*
  34  * RxRPC socket options
  35  */
  36 #define RXRPC_SECURITY_KEY              1       /* [clnt] set client security key */
  37 #define RXRPC_SECURITY_KEYRING          2       /* [srvr] set ring of server security keys */
  38 #define RXRPC_EXCLUSIVE_CONNECTION      3       /* Deprecated; use RXRPC_EXCLUSIVE_CALL instead */
  39 #define RXRPC_MIN_SECURITY_LEVEL        4       /* minimum security level */
  40 #define RXRPC_UPGRADEABLE_SERVICE       5       /* Upgrade service[0] -> service[1] */
  41 #define RXRPC_SUPPORTED_CMSG            6       /* Get highest supported control message type */
  42
  43 /*
  44  * RxRPC control messages
  45  * - If neither abort or accept are specified, the message is a data message.
  46  * - terminal messages mean that a user call ID tag can be recycled
  47  * - s/r/- indicate whether these are applicable to sendmsg() and/or recvmsg()
  48  */
  49 enum rxrpc_cmsg_type {
  50         RXRPC_USER_CALL_ID      = 1,    /* sr: user call ID specifier */
  51         RXRPC_ABORT             = 2,    /* sr: abort request / notification [terminal] */
  52         RXRPC_ACK               = 3,    /* -r: [Service] RPC op final ACK received [terminal] */
  53         RXRPC_NET_ERROR         = 5,    /* -r: network error received [terminal] */
  54         RXRPC_BUSY              = 6,    /* -r: server busy received [terminal] */
  55         RXRPC_LOCAL_ERROR       = 7,    /* -r: local error generated [terminal] */
  56         RXRPC_NEW_CALL          = 8,    /* -r: [Service] new incoming call notification */
  57         RXRPC_ACCEPT            = 9,    /* s-: [Service] accept request */
  58         RXRPC_EXCLUSIVE_CALL    = 10,   /* s-: Call should be on exclusive connection */
  59         RXRPC_UPGRADE_SERVICE   = 11,   /* s-: Request service upgrade for client call */
  60         RXRPC_TX_LENGTH         = 12,   /* s-: Total length of Tx data */
  61         RXRPC__SUPPORTED
  62 };
  63
  64 /*
  65  * RxRPC security levels
  66  */
  67 #define RXRPC_SECURITY_PLAIN    0       /* plain secure-checksummed packets only */
  68 #define RXRPC_SECURITY_AUTH     1       /* authenticated packets */
  69 #define RXRPC_SECURITY_ENCRYPT  2       /* encrypted packets */
  70
  71 /*
  72  * RxRPC security indices
  73  */
  74 #define RXRPC_SECURITY_NONE     0       /* no security protocol */
  75 #define RXRPC_SECURITY_RXKAD    2       /* kaserver or kerberos 4 */
  76 #define RXRPC_SECURITY_RXGK     4       /* gssapi-based */
  77 #define RXRPC_SECURITY_RXK5     5       /* kerberos 5 */
  78
  79 #endif /* _LINUX_RXRPC_H */