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)
52 #define RNDIS_MSG_COMPLETION cpu_to_le32(0x80000000)
54 /* codes for "msg_type" field of rndis messages;
55 * only the data channel uses packet messages (maybe batched);
56 * everything else goes on the control channel.
58 #define RNDIS_MSG_PACKET cpu_to_le32(0x00000001) /* 1-N packets */
59 #define RNDIS_MSG_INIT cpu_to_le32(0x00000002)
60 #define RNDIS_MSG_INIT_C (RNDIS_MSG_INIT|RNDIS_MSG_COMPLETION)
61 #define RNDIS_MSG_HALT cpu_to_le32(0x00000003)
62 #define RNDIS_MSG_QUERY cpu_to_le32(0x00000004)
63 #define RNDIS_MSG_QUERY_C (RNDIS_MSG_QUERY|RNDIS_MSG_COMPLETION)
64 #define RNDIS_MSG_SET cpu_to_le32(0x00000005)
65 #define RNDIS_MSG_SET_C (RNDIS_MSG_SET|RNDIS_MSG_COMPLETION)
66 #define RNDIS_MSG_RESET cpu_to_le32(0x00000006)
67 #define RNDIS_MSG_RESET_C (RNDIS_MSG_RESET|RNDIS_MSG_COMPLETION)
68 #define RNDIS_MSG_INDICATE cpu_to_le32(0x00000007)
69 #define RNDIS_MSG_KEEPALIVE cpu_to_le32(0x00000008)
70 #define RNDIS_MSG_KEEPALIVE_C (RNDIS_MSG_KEEPALIVE|RNDIS_MSG_COMPLETION)
72 /* codes for "status" field of completion messages */
73 #define RNDIS_STATUS_SUCCESS cpu_to_le32(0x00000000)
74 #define RNDIS_STATUS_FAILURE cpu_to_le32(0xc0000001)
75 #define RNDIS_STATUS_INVALID_DATA cpu_to_le32(0xc0010015)
76 #define RNDIS_STATUS_NOT_SUPPORTED cpu_to_le32(0xc00000bb)
77 #define RNDIS_STATUS_MEDIA_CONNECT cpu_to_le32(0x4001000b)
78 #define RNDIS_STATUS_MEDIA_DISCONNECT cpu_to_le32(0x4001000c)
80 /* codes for OID_GEN_PHYSICAL_MEDIUM */
81 #define RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED cpu_to_le32(0x00000000)
82 #define RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN cpu_to_le32(0x00000001)
83 #define RNDIS_PHYSICAL_MEDIUM_CABLE_MODEM cpu_to_le32(0x00000002)
84 #define RNDIS_PHYSICAL_MEDIUM_PHONE_LINE cpu_to_le32(0x00000003)
85 #define RNDIS_PHYSICAL_MEDIUM_POWER_LINE cpu_to_le32(0x00000004)
86 #define RNDIS_PHYSICAL_MEDIUM_DSL cpu_to_le32(0x00000005)
87 #define RNDIS_PHYSICAL_MEDIUM_FIBRE_CHANNEL cpu_to_le32(0x00000006)
88 #define RNDIS_PHYSICAL_MEDIUM_1394 cpu_to_le32(0x00000007)
89 #define RNDIS_PHYSICAL_MEDIUM_WIRELESS_WAN cpu_to_le32(0x00000008)
90 #define RNDIS_PHYSICAL_MEDIUM_MAX cpu_to_le32(0x00000009)
92 struct rndis_data_hdr {
93 __le32 msg_type; /* RNDIS_MSG_PACKET */
94 __le32 msg_len; // rndis_data_hdr + data_len + pad
95 __le32 data_offset; // 36 -- right after header
96 __le32 data_len; // ... real packet size
98 __le32 oob_data_offset; // zero
99 __le32 oob_data_len; // zero
100 __le32 num_oob; // zero
101 __le32 packet_data_offset; // zero
103 __le32 packet_data_len; // zero
104 __le32 vc_handle; // zero
105 __le32 reserved; // zero
106 } __attribute__ ((packed));
108 struct rndis_init { /* OUT */
110 __le32 msg_type; /* RNDIS_MSG_INIT */
111 __le32 msg_len; // 24
113 __le32 major_version; // of rndis (1.0)
114 __le32 minor_version;
115 __le32 max_transfer_size;
116 } __attribute__ ((packed));
118 struct rndis_init_c { /* IN */
120 __le32 msg_type; /* RNDIS_MSG_INIT_C */
124 __le32 major_version; // of rndis (1.0)
125 __le32 minor_version;
127 __le32 medium; // zero == 802.3
128 __le32 max_packets_per_message;
129 __le32 max_transfer_size;
130 __le32 packet_alignment; // max 7; (1<<n) bytes
131 __le32 af_list_offset; // zero
132 __le32 af_list_size; // zero
133 } __attribute__ ((packed));
135 struct rndis_halt { /* OUT (no reply) */
137 __le32 msg_type; /* RNDIS_MSG_HALT */
140 } __attribute__ ((packed));
142 struct rndis_query { /* OUT */
144 __le32 msg_type; /* RNDIS_MSG_QUERY */
150 /*?*/ __le32 handle; // zero
151 } __attribute__ ((packed));
153 struct rndis_query_c { /* IN */
155 __le32 msg_type; /* RNDIS_MSG_QUERY_C */
161 } __attribute__ ((packed));
163 struct rndis_set { /* OUT */
165 __le32 msg_type; /* RNDIS_MSG_SET */
171 /*?*/ __le32 handle; // zero
172 } __attribute__ ((packed));
174 struct rndis_set_c { /* IN */
176 __le32 msg_type; /* RNDIS_MSG_SET_C */
180 } __attribute__ ((packed));
182 struct rndis_reset { /* IN */
184 __le32 msg_type; /* RNDIS_MSG_RESET */
187 } __attribute__ ((packed));
189 struct rndis_reset_c { /* OUT */
191 __le32 msg_type; /* RNDIS_MSG_RESET_C */
194 __le32 addressing_lost;
195 } __attribute__ ((packed));
197 struct rndis_indicate { /* IN (unrequested) */
199 __le32 msg_type; /* RNDIS_MSG_INDICATE */
204 /**/ __le32 diag_status;
207 } __attribute__ ((packed));
209 struct rndis_keepalive { /* OUT (optionally IN) */
211 __le32 msg_type; /* RNDIS_MSG_KEEPALIVE */
214 } __attribute__ ((packed));
216 struct rndis_keepalive_c { /* IN (optionally OUT) */
218 __le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */
222 } __attribute__ ((packed));
224 /* NOTE: about 30 OIDs are "mandatory" for peripherals to support ... and
225 * there are gobs more that may optionally be supported. We'll avoid as much
226 * of that mess as possible.
228 #define OID_802_3_PERMANENT_ADDRESS cpu_to_le32(0x01010101)
229 #define OID_GEN_MAXIMUM_FRAME_SIZE cpu_to_le32(0x00010106)
230 #define OID_GEN_CURRENT_PACKET_FILTER cpu_to_le32(0x0001010e)
231 #define OID_GEN_PHYSICAL_MEDIUM cpu_to_le32(0x00010202)
233 /* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
234 #define RNDIS_PACKET_TYPE_DIRECTED cpu_to_le32(0x00000001)
235 #define RNDIS_PACKET_TYPE_MULTICAST cpu_to_le32(0x00000002)
236 #define RNDIS_PACKET_TYPE_ALL_MULTICAST cpu_to_le32(0x00000004)
237 #define RNDIS_PACKET_TYPE_BROADCAST cpu_to_le32(0x00000008)
238 #define RNDIS_PACKET_TYPE_SOURCE_ROUTING cpu_to_le32(0x00000010)
239 #define RNDIS_PACKET_TYPE_PROMISCUOUS cpu_to_le32(0x00000020)
240 #define RNDIS_PACKET_TYPE_SMT cpu_to_le32(0x00000040)
241 #define RNDIS_PACKET_TYPE_ALL_LOCAL cpu_to_le32(0x00000080)
242 #define RNDIS_PACKET_TYPE_GROUP cpu_to_le32(0x00001000)
243 #define RNDIS_PACKET_TYPE_ALL_FUNCTIONAL cpu_to_le32(0x00002000)
244 #define RNDIS_PACKET_TYPE_FUNCTIONAL cpu_to_le32(0x00004000)
245 #define RNDIS_PACKET_TYPE_MAC_FRAME cpu_to_le32(0x00008000)
247 /* default filter used with RNDIS devices */
248 #define RNDIS_DEFAULT_FILTER ( \
249 RNDIS_PACKET_TYPE_DIRECTED | \
250 RNDIS_PACKET_TYPE_BROADCAST | \
251 RNDIS_PACKET_TYPE_ALL_MULTICAST | \
252 RNDIS_PACKET_TYPE_PROMISCUOUS)
254 /* Flags to require specific physical medium type for generic_rndis_bind() */
255 #define FLAG_RNDIS_PHYM_NOT_WIRELESS 0x0001
256 #define FLAG_RNDIS_PHYM_WIRELESS 0x0002
259 extern void rndis_status(struct usbnet *dev, struct urb *urb);
261 rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen);
263 generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags);
264 extern void rndis_unbind(struct usbnet *dev, struct usb_interface *intf);
265 extern int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb);
266 extern struct sk_buff *
267 rndis_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags);
269 #endif /* __LINUX_USB_RNDIS_HOST_H */