fb: adv7393: off by one in probe function
[deliverable/linux.git] / include / uapi / linux / if_pppox.h
1 /***************************************************************************
2 * Linux PPP over X - Generic PPP transport layer sockets
3 * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516)
4 *
5 * This file supplies definitions required by the PPP over Ethernet driver
6 * (pppox.c). All version information wrt this file is located in pppox.c
7 *
8 * License:
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
13 *
14 */
15
16 #ifndef _UAPI__LINUX_IF_PPPOX_H
17 #define _UAPI__LINUX_IF_PPPOX_H
18
19
20 #include <linux/types.h>
21 #include <asm/byteorder.h>
22
23 #include <linux/socket.h>
24 #include <linux/if_ether.h>
25 #include <linux/if_pppol2tp.h>
26
27 /* For user-space programs to pick up these definitions
28 * which they wouldn't get otherwise without defining __KERNEL__
29 */
30 #ifndef AF_PPPOX
31 #define AF_PPPOX 24
32 #define PF_PPPOX AF_PPPOX
33 #endif /* !(AF_PPPOX) */
34
35 /************************************************************************
36 * PPPoE addressing definition
37 */
38 typedef __be16 sid_t;
39 struct pppoe_addr {
40 sid_t sid; /* Session identifier */
41 unsigned char remote[ETH_ALEN]; /* Remote address */
42 char dev[IFNAMSIZ]; /* Local device to use */
43 };
44
45 /************************************************************************
46 * PPTP addressing definition
47 */
48 struct pptp_addr {
49 __u16 call_id;
50 struct in_addr sin_addr;
51 };
52
53 /************************************************************************
54 * Protocols supported by AF_PPPOX
55 */
56 #define PX_PROTO_OE 0 /* Currently just PPPoE */
57 #define PX_PROTO_OL2TP 1 /* Now L2TP also */
58 #define PX_PROTO_PPTP 2
59 #define PX_MAX_PROTO 3
60
61 struct sockaddr_pppox {
62 __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
63 unsigned int sa_protocol; /* protocol identifier */
64 union {
65 struct pppoe_addr pppoe;
66 struct pptp_addr pptp;
67 } sa_addr;
68 } __packed;
69
70 /* The use of the above union isn't viable because the size of this
71 * struct must stay fixed over time -- applications use sizeof(struct
72 * sockaddr_pppox) to fill it. We use a protocol specific sockaddr
73 * type instead.
74 */
75 struct sockaddr_pppol2tp {
76 __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
77 unsigned int sa_protocol; /* protocol identifier */
78 struct pppol2tp_addr pppol2tp;
79 } __packed;
80
81 struct sockaddr_pppol2tpin6 {
82 __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
83 unsigned int sa_protocol; /* protocol identifier */
84 struct pppol2tpin6_addr pppol2tp;
85 } __packed;
86
87 /* The L2TPv3 protocol changes tunnel and session ids from 16 to 32
88 * bits. So we need a different sockaddr structure.
89 */
90 struct sockaddr_pppol2tpv3 {
91 __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
92 unsigned int sa_protocol; /* protocol identifier */
93 struct pppol2tpv3_addr pppol2tp;
94 } __packed;
95
96 struct sockaddr_pppol2tpv3in6 {
97 __kernel_sa_family_t sa_family; /* address family, AF_PPPOX */
98 unsigned int sa_protocol; /* protocol identifier */
99 struct pppol2tpv3in6_addr pppol2tp;
100 } __packed;
101
102 /*********************************************************************
103 *
104 * ioctl interface for defining forwarding of connections
105 *
106 ********************************************************************/
107
108 #define PPPOEIOCSFWD _IOW(0xB1 ,0, size_t)
109 #define PPPOEIOCDFWD _IO(0xB1 ,1)
110 /*#define PPPOEIOCGFWD _IOWR(0xB1,2, size_t)*/
111
112 /* Codes to identify message types */
113 #define PADI_CODE 0x09
114 #define PADO_CODE 0x07
115 #define PADR_CODE 0x19
116 #define PADS_CODE 0x65
117 #define PADT_CODE 0xa7
118 struct pppoe_tag {
119 __be16 tag_type;
120 __be16 tag_len;
121 char tag_data[0];
122 } __attribute__ ((packed));
123
124 /* Tag identifiers */
125 #define PTT_EOL __cpu_to_be16(0x0000)
126 #define PTT_SRV_NAME __cpu_to_be16(0x0101)
127 #define PTT_AC_NAME __cpu_to_be16(0x0102)
128 #define PTT_HOST_UNIQ __cpu_to_be16(0x0103)
129 #define PTT_AC_COOKIE __cpu_to_be16(0x0104)
130 #define PTT_VENDOR __cpu_to_be16(0x0105)
131 #define PTT_RELAY_SID __cpu_to_be16(0x0110)
132 #define PTT_SRV_ERR __cpu_to_be16(0x0201)
133 #define PTT_SYS_ERR __cpu_to_be16(0x0202)
134 #define PTT_GEN_ERR __cpu_to_be16(0x0203)
135
136 struct pppoe_hdr {
137 #if defined(__LITTLE_ENDIAN_BITFIELD)
138 __u8 type : 4;
139 __u8 ver : 4;
140 #elif defined(__BIG_ENDIAN_BITFIELD)
141 __u8 ver : 4;
142 __u8 type : 4;
143 #else
144 #error "Please fix <asm/byteorder.h>"
145 #endif
146 __u8 code;
147 __be16 sid;
148 __be16 length;
149 struct pppoe_tag tag[0];
150 } __packed;
151
152 /* Length of entire PPPoE + PPP header */
153 #define PPPOE_SES_HLEN 8
154
155
156 #endif /* _UAPI__LINUX_IF_PPPOX_H */
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