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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 */
22struct 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 */
50enum 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 */