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