2 * Host Side support for RNDIS Networking Links
3 * Copyright (C) 2005 by David Brownell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #ifndef __LINUX_USB_RNDIS_HOST_H
21 #define __LINUX_USB_RNDIS_HOST_H
24 * CONTROL uses CDC "encapsulated commands" with funky notifications.
25 * - control-out: SEND_ENCAPSULATED
26 * - interrupt-in: RESPONSE_AVAILABLE
27 * - control-in: GET_ENCAPSULATED
29 * We'll try to ignore the RESPONSE_AVAILABLE notifications.
31 * REVISIT some RNDIS implementations seem to have curious issues still
34 struct rndis_msg_hdr {
35 __le32 msg_type; /* RNDIS_MSG_* */
37 // followed by data that varies between messages
41 } __attribute__ ((packed));
43 /* MS-Windows uses this strange size, but RNDIS spec says 1024 minimum */
44 #define CONTROL_BUFFER_SIZE 1025
46 /* RNDIS defines an (absurdly huge) 10 second control timeout,
47 * but ActiveSync seems to use a more usual 5 second timeout
48 * (which matches the USB 2.0 spec).
50 #define RNDIS_CONTROL_TIMEOUT_MS (5 * 1000)
53 #define ccpu2 __constant_cpu_to_le32
55 #define RNDIS_MSG_COMPLETION ccpu2(0x80000000)
57 /* codes for "msg_type" field of rndis messages;
58 * only the data channel uses packet messages (maybe batched);
59 * everything else goes on the control channel.
61 #define RNDIS_MSG_PACKET ccpu2(0x00000001) /* 1-N packets */
62 #define RNDIS_MSG_INIT ccpu2(0x00000002)
63 #define RNDIS_MSG_INIT_C (RNDIS_MSG_INIT|RNDIS_MSG_COMPLETION)
64 #define RNDIS_MSG_HALT ccpu2(0x00000003)
65 #define RNDIS_MSG_QUERY ccpu2(0x00000004)
66 #define RNDIS_MSG_QUERY_C (RNDIS_MSG_QUERY|RNDIS_MSG_COMPLETION)
67 #define RNDIS_MSG_SET ccpu2(0x00000005)
68 #define RNDIS_MSG_SET_C (RNDIS_MSG_SET|RNDIS_MSG_COMPLETION)
69 #define RNDIS_MSG_RESET ccpu2(0x00000006)
70 #define RNDIS_MSG_RESET_C (RNDIS_MSG_RESET|RNDIS_MSG_COMPLETION)
71 #define RNDIS_MSG_INDICATE ccpu2(0x00000007)
72 #define RNDIS_MSG_KEEPALIVE ccpu2(0x00000008)
73 #define RNDIS_MSG_KEEPALIVE_C (RNDIS_MSG_KEEPALIVE|RNDIS_MSG_COMPLETION)
75 /* codes for "status" field of completion messages */
76 #define RNDIS_STATUS_SUCCESS ccpu2(0x00000000)
77 #define RNDIS_STATUS_FAILURE ccpu2(0xc0000001)
78 #define RNDIS_STATUS_INVALID_DATA ccpu2(0xc0010015)
79 #define RNDIS_STATUS_NOT_SUPPORTED ccpu2(0xc00000bb)
80 #define RNDIS_STATUS_MEDIA_CONNECT ccpu2(0x4001000b)
81 #define RNDIS_STATUS_MEDIA_DISCONNECT ccpu2(0x4001000c)
83 /* codes for OID_GEN_PHYSICAL_MEDIUM */
84 #define RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED ccpu2(0x00000000)
85 #define RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN ccpu2(0x00000001)
86 #define RNDIS_PHYSICAL_MEDIUM_CABLE_MODEM ccpu2(0x00000002)
87 #define RNDIS_PHYSICAL_MEDIUM_PHONE_LINE ccpu2(0x00000003)
88 #define RNDIS_PHYSICAL_MEDIUM_POWER_LINE ccpu2(0x00000004)
89 #define RNDIS_PHYSICAL_MEDIUM_DSL ccpu2(0x00000005)
90 #define RNDIS_PHYSICAL_MEDIUM_FIBRE_CHANNEL ccpu2(0x00000006)
91 #define RNDIS_PHYSICAL_MEDIUM_1394 ccpu2(0x00000007)
92 #define RNDIS_PHYSICAL_MEDIUM_WIRELESS_WAN ccpu2(0x00000008)
93 #define RNDIS_PHYSICAL_MEDIUM_MAX ccpu2(0x00000009)
95 struct rndis_data_hdr {
96 __le32 msg_type; /* RNDIS_MSG_PACKET */
97 __le32 msg_len; // rndis_data_hdr + data_len + pad
98 __le32 data_offset; // 36 -- right after header
99 __le32 data_len; // ... real packet size
101 __le32 oob_data_offset; // zero
102 __le32 oob_data_len; // zero
103 __le32 num_oob; // zero
104 __le32 packet_data_offset; // zero
106 __le32 packet_data_len; // zero
107 __le32 vc_handle; // zero
108 __le32 reserved; // zero
109 } __attribute__ ((packed));
111 struct rndis_init { /* OUT */
113 __le32 msg_type; /* RNDIS_MSG_INIT */
114 __le32 msg_len; // 24
116 __le32 major_version; // of rndis (1.0)
117 __le32 minor_version;
118 __le32 max_transfer_size;
119 } __attribute__ ((packed));
121 struct rndis_init_c { /* IN */
123 __le32 msg_type; /* RNDIS_MSG_INIT_C */
127 __le32 major_version; // of rndis (1.0)
128 __le32 minor_version;
130 __le32 medium; // zero == 802.3
131 __le32 max_packets_per_message;
132 __le32 max_transfer_size;
133 __le32 packet_alignment; // max 7; (1<<n) bytes
134 __le32 af_list_offset; // zero
135 __le32 af_list_size; // zero
136 } __attribute__ ((packed));
138 struct rndis_halt { /* OUT (no reply) */
140 __le32 msg_type; /* RNDIS_MSG_HALT */
143 } __attribute__ ((packed));
145 struct rndis_query { /* OUT */
147 __le32 msg_type; /* RNDIS_MSG_QUERY */
153 /*?*/ __le32 handle; // zero
154 } __attribute__ ((packed));
156 struct rndis_query_c { /* IN */
158 __le32 msg_type; /* RNDIS_MSG_QUERY_C */
164 } __attribute__ ((packed));
166 struct rndis_set { /* OUT */
168 __le32 msg_type; /* RNDIS_MSG_SET */
174 /*?*/ __le32 handle; // zero
175 } __attribute__ ((packed));
177 struct rndis_set_c { /* IN */
179 __le32 msg_type; /* RNDIS_MSG_SET_C */
183 } __attribute__ ((packed));
185 struct rndis_reset { /* IN */
187 __le32 msg_type; /* RNDIS_MSG_RESET */
190 } __attribute__ ((packed));
192 struct rndis_reset_c { /* OUT */
194 __le32 msg_type; /* RNDIS_MSG_RESET_C */
197 __le32 addressing_lost;
198 } __attribute__ ((packed));
200 struct rndis_indicate { /* IN (unrequested) */
202 __le32 msg_type; /* RNDIS_MSG_INDICATE */
207 /**/ __le32 diag_status;
210 } __attribute__ ((packed));
212 struct rndis_keepalive { /* OUT (optionally IN) */
214 __le32 msg_type; /* RNDIS_MSG_KEEPALIVE */
217 } __attribute__ ((packed));
219 struct rndis_keepalive_c { /* IN (optionally OUT) */
221 __le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */
225 } __attribute__ ((packed));
227 /* NOTE: about 30 OIDs are "mandatory" for peripherals to support ... and
228 * there are gobs more that may optionally be supported. We'll avoid as much
229 * of that mess as possible.
231 #define OID_802_3_PERMANENT_ADDRESS ccpu2(0x01010101)
232 #define OID_GEN_MAXIMUM_FRAME_SIZE ccpu2(0x00010106)
233 #define OID_GEN_CURRENT_PACKET_FILTER ccpu2(0x0001010e)
234 #define OID_GEN_PHYSICAL_MEDIUM ccpu2(0x00010202)
236 /* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
237 #define RNDIS_PACKET_TYPE_DIRECTED ccpu2(0x00000001)
238 #define RNDIS_PACKET_TYPE_MULTICAST ccpu2(0x00000002)
239 #define RNDIS_PACKET_TYPE_ALL_MULTICAST ccpu2(0x00000004)
240 #define RNDIS_PACKET_TYPE_BROADCAST ccpu2(0x00000008)
241 #define RNDIS_PACKET_TYPE_SOURCE_ROUTING ccpu2(0x00000010)
242 #define RNDIS_PACKET_TYPE_PROMISCUOUS ccpu2(0x00000020)
243 #define RNDIS_PACKET_TYPE_SMT ccpu2(0x00000040)
244 #define RNDIS_PACKET_TYPE_ALL_LOCAL ccpu2(0x00000080)
245 #define RNDIS_PACKET_TYPE_GROUP ccpu2(0x00001000)
246 #define RNDIS_PACKET_TYPE_ALL_FUNCTIONAL ccpu2(0x00002000)
247 #define RNDIS_PACKET_TYPE_FUNCTIONAL ccpu2(0x00004000)
248 #define RNDIS_PACKET_TYPE_MAC_FRAME ccpu2(0x00008000)
250 /* default filter used with RNDIS devices */
251 #define RNDIS_DEFAULT_FILTER ( \
252 RNDIS_PACKET_TYPE_DIRECTED | \
253 RNDIS_PACKET_TYPE_BROADCAST | \
254 RNDIS_PACKET_TYPE_ALL_MULTICAST | \
255 RNDIS_PACKET_TYPE_PROMISCUOUS)
257 /* Flags to require specific physical medium type for generic_rndis_bind() */
258 #define FLAG_RNDIS_PHYM_NOT_WIRELESS 0x0001
259 #define FLAG_RNDIS_PHYM_WIRELESS 0x0002
262 extern void rndis_status(struct usbnet *dev, struct urb *urb);
263 extern int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf);
265 generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags);
266 extern void rndis_unbind(struct usbnet *dev, struct usb_interface *intf);
267 extern int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb);
268 extern struct sk_buff *
269 rndis_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags);
271 #endif /* __LINUX_USB_RNDIS_HOST_H */