1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * RNDIS Definitions for Remote NDIS |
4 | * |
5 | * Authors: Benedikt Spranger, Pengutronix |
6 | * Robert Schwebel, Pengutronix |
7 | * |
8 | * This software was originally developed in conformance with |
9 | * Microsoft's Remote NDIS Specification License Agreement. |
10 | */ |
11 | |
12 | #ifndef _LINUX_RNDIS_H |
13 | #define _LINUX_RNDIS_H |
14 | |
15 | #include <linux/rndis.h> |
16 | #include "u_ether.h" |
17 | #include "ndis.h" |
18 | |
19 | #define RNDIS_MAXIMUM_FRAME_SIZE 1518 |
20 | #define RNDIS_MAX_TOTAL_SIZE 1558 |
21 | |
22 | typedef struct rndis_init_msg_type { |
23 | __le32 MessageType; |
24 | __le32 MessageLength; |
25 | __le32 RequestID; |
26 | __le32 MajorVersion; |
27 | __le32 MinorVersion; |
28 | __le32 MaxTransferSize; |
29 | } rndis_init_msg_type; |
30 | |
31 | typedef struct rndis_init_cmplt_type { |
32 | __le32 MessageType; |
33 | __le32 MessageLength; |
34 | __le32 RequestID; |
35 | __le32 Status; |
36 | __le32 MajorVersion; |
37 | __le32 MinorVersion; |
38 | __le32 DeviceFlags; |
39 | __le32 Medium; |
40 | __le32 MaxPacketsPerTransfer; |
41 | __le32 MaxTransferSize; |
42 | __le32 PacketAlignmentFactor; |
43 | __le32 AFListOffset; |
44 | __le32 AFListSize; |
45 | } rndis_init_cmplt_type; |
46 | |
47 | typedef struct rndis_halt_msg_type { |
48 | __le32 MessageType; |
49 | __le32 MessageLength; |
50 | __le32 RequestID; |
51 | } rndis_halt_msg_type; |
52 | |
53 | typedef struct rndis_query_msg_type { |
54 | __le32 MessageType; |
55 | __le32 MessageLength; |
56 | __le32 RequestID; |
57 | __le32 OID; |
58 | __le32 InformationBufferLength; |
59 | __le32 InformationBufferOffset; |
60 | __le32 DeviceVcHandle; |
61 | } rndis_query_msg_type; |
62 | |
63 | typedef struct rndis_query_cmplt_type { |
64 | __le32 MessageType; |
65 | __le32 MessageLength; |
66 | __le32 RequestID; |
67 | __le32 Status; |
68 | __le32 InformationBufferLength; |
69 | __le32 InformationBufferOffset; |
70 | } rndis_query_cmplt_type; |
71 | |
72 | typedef struct rndis_set_msg_type { |
73 | __le32 MessageType; |
74 | __le32 MessageLength; |
75 | __le32 RequestID; |
76 | __le32 OID; |
77 | __le32 InformationBufferLength; |
78 | __le32 InformationBufferOffset; |
79 | __le32 DeviceVcHandle; |
80 | } rndis_set_msg_type; |
81 | |
82 | typedef struct rndis_set_cmplt_type { |
83 | __le32 MessageType; |
84 | __le32 MessageLength; |
85 | __le32 RequestID; |
86 | __le32 Status; |
87 | } rndis_set_cmplt_type; |
88 | |
89 | typedef struct rndis_reset_msg_type { |
90 | __le32 MessageType; |
91 | __le32 MessageLength; |
92 | __le32 Reserved; |
93 | } rndis_reset_msg_type; |
94 | |
95 | typedef struct rndis_reset_cmplt_type { |
96 | __le32 MessageType; |
97 | __le32 MessageLength; |
98 | __le32 Status; |
99 | __le32 AddressingReset; |
100 | } rndis_reset_cmplt_type; |
101 | |
102 | typedef struct rndis_indicate_status_msg_type { |
103 | __le32 MessageType; |
104 | __le32 MessageLength; |
105 | __le32 Status; |
106 | __le32 StatusBufferLength; |
107 | __le32 StatusBufferOffset; |
108 | } rndis_indicate_status_msg_type; |
109 | |
110 | typedef struct rndis_keepalive_msg_type { |
111 | __le32 MessageType; |
112 | __le32 MessageLength; |
113 | __le32 RequestID; |
114 | } rndis_keepalive_msg_type; |
115 | |
116 | typedef struct rndis_keepalive_cmplt_type { |
117 | __le32 MessageType; |
118 | __le32 MessageLength; |
119 | __le32 RequestID; |
120 | __le32 Status; |
121 | } rndis_keepalive_cmplt_type; |
122 | |
123 | struct rndis_packet_msg_type { |
124 | __le32 MessageType; |
125 | __le32 MessageLength; |
126 | __le32 DataOffset; |
127 | __le32 DataLength; |
128 | __le32 OOBDataOffset; |
129 | __le32 OOBDataLength; |
130 | __le32 NumOOBDataElements; |
131 | __le32 PerPacketInfoOffset; |
132 | __le32 PerPacketInfoLength; |
133 | __le32 VcHandle; |
134 | __le32 Reserved; |
135 | } __attribute__ ((packed)); |
136 | |
137 | struct rndis_config_parameter { |
138 | __le32 ParameterNameOffset; |
139 | __le32 ParameterNameLength; |
140 | __le32 ParameterType; |
141 | __le32 ParameterValueOffset; |
142 | __le32 ParameterValueLength; |
143 | }; |
144 | |
145 | /* implementation specific */ |
146 | enum rndis_state { |
147 | RNDIS_UNINITIALIZED, |
148 | RNDIS_INITIALIZED, |
149 | RNDIS_DATA_INITIALIZED, |
150 | }; |
151 | |
152 | typedef struct rndis_resp_t { |
153 | struct list_head list; |
154 | u8 *buf; |
155 | u32 length; |
156 | int send; |
157 | } rndis_resp_t; |
158 | |
159 | typedef struct rndis_params { |
160 | int confignr; |
161 | u8 used; |
162 | u16 saved_filter; |
163 | enum rndis_state state; |
164 | u32 medium; |
165 | u32 speed; |
166 | u32 media_state; |
167 | |
168 | const u8 *host_mac; |
169 | u16 *filter; |
170 | struct net_device *dev; |
171 | |
172 | u32 vendorID; |
173 | const char *vendorDescr; |
174 | void (*resp_avail)(void *v); |
175 | void *v; |
176 | struct list_head resp_queue; |
177 | spinlock_t resp_lock; |
178 | } rndis_params; |
179 | |
180 | /* RNDIS Message parser and other useless functions */ |
181 | int rndis_msg_parser(struct rndis_params *params, u8 *buf); |
182 | struct rndis_params *rndis_register(void (*resp_avail)(void *v), void *v); |
183 | void rndis_deregister(struct rndis_params *params); |
184 | int rndis_set_param_dev(struct rndis_params *params, struct net_device *dev, |
185 | u16 *cdc_filter); |
186 | int rndis_set_param_vendor(struct rndis_params *params, u32 vendorID, |
187 | const char *vendorDescr); |
188 | int rndis_set_param_medium(struct rndis_params *params, u32 medium, |
189 | u32 speed); |
190 | void rndis_add_hdr(struct sk_buff *skb); |
191 | int rndis_rm_hdr(struct gether *port, struct sk_buff *skb, |
192 | struct sk_buff_head *list); |
193 | u8 *rndis_get_next_response(struct rndis_params *params, u32 *length); |
194 | void rndis_free_response(struct rndis_params *params, u8 *buf); |
195 | |
196 | void rndis_uninit(struct rndis_params *params); |
197 | int rndis_signal_connect(struct rndis_params *params); |
198 | int rndis_signal_disconnect(struct rndis_params *params); |
199 | int rndis_state(struct rndis_params *params); |
200 | extern void rndis_set_host_mac(struct rndis_params *params, const u8 *addr); |
201 | |
202 | #endif /* _LINUX_RNDIS_H */ |
203 | |