1 /* SPDX-License-Identifier: GPL-2.0-or-later WITH Linux-syscall-note */
2 /* Types and definitions for AF_RXRPC.
3 *
4 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
8 #ifndef _UAPI_LINUX_RXRPC_H
9 #define _UAPI_LINUX_RXRPC_H
10
11 #include <linux/types.h>
12 #include <linux/in.h>
13 #include <linux/in6.h>
14
15 /*
16 * RxRPC socket address
17 */
18 struct sockaddr_rxrpc {
19 __kernel_sa_family_t srx_family; /* address family */
20 __u16 srx_service; /* service desired */
21 __u16 transport_type; /* type of transport socket (SOCK_DGRAM) */
22 __u16 transport_len; /* length of transport address */
23 union {
24 __kernel_sa_family_t family; /* transport address family */
25 struct sockaddr_in sin; /* IPv4 transport address */
26 struct sockaddr_in6 sin6; /* IPv6 transport address */
27 } transport;
28 };
29
30 /*
31 * RxRPC socket options
32 */
33 #define RXRPC_SECURITY_KEY 1 /* [clnt] set client security key */
34 #define RXRPC_SECURITY_KEYRING 2 /* [srvr] set ring of server security keys */
35 #define RXRPC_EXCLUSIVE_CONNECTION 3 /* Deprecated; use RXRPC_EXCLUSIVE_CALL instead */
36 #define RXRPC_MIN_SECURITY_LEVEL 4 /* minimum security level */
37 #define RXRPC_UPGRADEABLE_SERVICE 5 /* Upgrade service[0] -> service[1] */
38 #define RXRPC_SUPPORTED_CMSG 6 /* Get highest supported control message type */
39
40 /*
41 * RxRPC control messages
42 * - If neither abort or accept are specified, the message is a data message.
43 * - terminal messages mean that a user call ID tag can be recycled
44 * - s/r/- indicate whether these are applicable to sendmsg() and/or recvmsg()
45 */
46 enum rxrpc_cmsg_type {
47 RXRPC_USER_CALL_ID = 1, /* sr: user call ID specifier */
48 RXRPC_ABORT = 2, /* sr: abort request / notification [terminal] */
49 RXRPC_ACK = 3, /* -r: [Service] RPC op final ACK received [terminal] */
50 RXRPC_NET_ERROR = 5, /* -r: network error received [terminal] */
51 RXRPC_BUSY = 6, /* -r: server busy received [terminal] */
52 RXRPC_LOCAL_ERROR = 7, /* -r: local error generated [terminal] */
53 RXRPC_NEW_CALL = 8, /* -r: [Service] new incoming call notification */
54 RXRPC_ACCEPT = 9, /* s-: [Service] accept request */
55 RXRPC_EXCLUSIVE_CALL = 10, /* s-: Call should be on exclusive connection */
56 RXRPC_UPGRADE_SERVICE = 11, /* s-: Request service upgrade for client call */
57 RXRPC_TX_LENGTH = 12, /* s-: Total length of Tx data */
58 RXRPC_SET_CALL_TIMEOUT = 13, /* s-: Set one or more call timeouts */
59 RXRPC__SUPPORTED
60 };
61
62 /*
63 * RxRPC security levels
64 */
65 #define RXRPC_SECURITY_PLAIN 0 /* plain secure-checksummed packets only */
66 #define RXRPC_SECURITY_AUTH 1 /* authenticated packets */
67 #define RXRPC_SECURITY_ENCRYPT 2 /* encrypted packets */
68
69 /*
70 * RxRPC security indices
71 */
72 #define RXRPC_SECURITY_NONE 0 /* no security protocol */
73 #define RXRPC_SECURITY_RXKAD 2 /* kaserver or kerberos 4 */
74 #define RXRPC_SECURITY_RXGK 4 /* gssapi-based */
75 #define RXRPC_SECURITY_RXK5 5 /* kerberos 5 */
76
77 /*
78 * RxRPC-level abort codes
79 */
80 #define RX_CALL_DEAD -1 /* call/conn has been inactive and is shut down */
81 #define RX_INVALID_OPERATION -2 /* invalid operation requested / attempted */
82 #define RX_CALL_TIMEOUT -3 /* call timeout exceeded */
83 #define RX_EOF -4 /* unexpected end of data on read op */
84 #define RX_PROTOCOL_ERROR -5 /* low-level protocol error */
85 #define RX_USER_ABORT -6 /* generic user abort */
86 #define RX_ADDRINUSE -7 /* UDP port in use */
87 #define RX_DEBUGI_BADTYPE -8 /* bad debugging packet type */
88
89 /*
90 * (un)marshalling abort codes (rxgen)
91 */
92 #define RXGEN_CC_MARSHAL -450
93 #define RXGEN_CC_UNMARSHAL -451
94 #define RXGEN_SS_MARSHAL -452
95 #define RXGEN_SS_UNMARSHAL -453
96 #define RXGEN_DECODE -454
97 #define RXGEN_OPCODE -455
98 #define RXGEN_SS_XDRFREE -456
99 #define RXGEN_CC_XDRFREE -457
100
101 /*
102 * Rx kerberos security abort codes
103 * - unfortunately we have no generalised security abort codes to say things
104 * like "unsupported security", so we have to use these instead and hope the
105 * other side understands
106 */
107 #define RXKADINCONSISTENCY 19270400 /* security module structure inconsistent */
108 #define RXKADPACKETSHORT 19270401 /* packet too short for security challenge */
109 #define RXKADLEVELFAIL 19270402 /* security level negotiation failed */
110 #define RXKADTICKETLEN 19270403 /* ticket length too short or too long */
111 #define RXKADOUTOFSEQUENCE 19270404 /* packet had bad sequence number */
112 #define RXKADNOAUTH 19270405 /* caller not authorised */
113 #define RXKADBADKEY 19270406 /* illegal key: bad parity or weak */
114 #define RXKADBADTICKET 19270407 /* security object was passed a bad ticket */
115 #define RXKADUNKNOWNKEY 19270408 /* ticket contained unknown key version number */
116 #define RXKADEXPIRED 19270409 /* authentication expired */
117 #define RXKADSEALEDINCON 19270410 /* sealed data inconsistent */
118 #define RXKADDATALEN 19270411 /* user data too long */
119 #define RXKADILLEGALLEVEL 19270412 /* caller not authorised to use encrypted conns */
120
121 #endif /* _UAPI_LINUX_RXRPC_H */