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
21 #ifndef __RNDIS_HOST_H
22 #define __RNDIS_HOST_H
26 * CONTROL uses CDC "encapsulated commands" with funky notifications.
27 * - control-out: SEND_ENCAPSULATED
28 * - interrupt-in: RESPONSE_AVAILABLE
29 * - control-in: GET_ENCAPSULATED
31 * We'll try to ignore the RESPONSE_AVAILABLE notifications.
33 * REVISIT some RNDIS implementations seem to have curious issues still
36 struct rndis_msg_hdr {
37 __le32 msg_type; /* RNDIS_MSG_* */
39 // followed by data that varies between messages
43 } __attribute__ ((packed));
45 /* MS-Windows uses this strange size, but RNDIS spec says 1024 minimum */
46 #define CONTROL_BUFFER_SIZE 1025
48 /* RNDIS defines an (absurdly huge) 10 second control timeout,
49 * but ActiveSync seems to use a more usual 5 second timeout
50 * (which matches the USB 2.0 spec).
52 #define RNDIS_CONTROL_TIMEOUT_MS (5 * 1000)
55 #define ccpu2 __constant_cpu_to_le32
57 #define RNDIS_MSG_COMPLETION ccpu2(0x80000000)
59 /* codes for "msg_type" field of rndis messages;
60 * only the data channel uses packet messages (maybe batched);
61 * everything else goes on the control channel.
63 #define RNDIS_MSG_PACKET ccpu2(0x00000001) /* 1-N packets */
64 #define RNDIS_MSG_INIT ccpu2(0x00000002)
65 #define RNDIS_MSG_INIT_C (RNDIS_MSG_INIT|RNDIS_MSG_COMPLETION)
66 #define RNDIS_MSG_HALT ccpu2(0x00000003)
67 #define RNDIS_MSG_QUERY ccpu2(0x00000004)
68 #define RNDIS_MSG_QUERY_C (RNDIS_MSG_QUERY|RNDIS_MSG_COMPLETION)
69 #define RNDIS_MSG_SET ccpu2(0x00000005)
70 #define RNDIS_MSG_SET_C (RNDIS_MSG_SET|RNDIS_MSG_COMPLETION)
71 #define RNDIS_MSG_RESET ccpu2(0x00000006)
72 #define RNDIS_MSG_RESET_C (RNDIS_MSG_RESET|RNDIS_MSG_COMPLETION)
73 #define RNDIS_MSG_INDICATE ccpu2(0x00000007)
74 #define RNDIS_MSG_KEEPALIVE ccpu2(0x00000008)
75 #define RNDIS_MSG_KEEPALIVE_C (RNDIS_MSG_KEEPALIVE|RNDIS_MSG_COMPLETION)
77 /* codes for "status" field of completion messages */
78 #define RNDIS_STATUS_SUCCESS ccpu2(0x00000000)
79 #define RNDIS_STATUS_FAILURE ccpu2(0xc0000001)
80 #define RNDIS_STATUS_INVALID_DATA ccpu2(0xc0010015)
81 #define RNDIS_STATUS_NOT_SUPPORTED ccpu2(0xc00000bb)
82 #define RNDIS_STATUS_MEDIA_CONNECT ccpu2(0x4001000b)
83 #define RNDIS_STATUS_MEDIA_DISCONNECT ccpu2(0x4001000c)
85 /* codes for OID_GEN_PHYSICAL_MEDIUM */
86 #define RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED ccpu2(0x00000000)
87 #define RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN ccpu2(0x00000001)
88 #define RNDIS_PHYSICAL_MEDIUM_CABLE_MODEM ccpu2(0x00000002)
89 #define RNDIS_PHYSICAL_MEDIUM_PHONE_LINE ccpu2(0x00000003)
90 #define RNDIS_PHYSICAL_MEDIUM_POWER_LINE ccpu2(0x00000004)
91 #define RNDIS_PHYSICAL_MEDIUM_DSL ccpu2(0x00000005)
92 #define RNDIS_PHYSICAL_MEDIUM_FIBRE_CHANNEL ccpu2(0x00000006)
93 #define RNDIS_PHYSICAL_MEDIUM_1394 ccpu2(0x00000007)
94 #define RNDIS_PHYSICAL_MEDIUM_WIRELESS_WAN ccpu2(0x00000008)
95 #define RNDIS_PHYSICAL_MEDIUM_MAX ccpu2(0x00000009)
97 struct rndis_data_hdr {
98 __le32 msg_type; /* RNDIS_MSG_PACKET */
99 __le32 msg_len; // rndis_data_hdr + data_len + pad
100 __le32 data_offset; // 36 -- right after header
101 __le32 data_len; // ... real packet size
103 __le32 oob_data_offset; // zero
104 __le32 oob_data_len; // zero
105 __le32 num_oob; // zero
106 __le32 packet_data_offset; // zero
108 __le32 packet_data_len; // zero
109 __le32 vc_handle; // zero
110 __le32 reserved; // zero
111 } __attribute__ ((packed));
113 struct rndis_init { /* OUT */
115 __le32 msg_type; /* RNDIS_MSG_INIT */
116 __le32 msg_len; // 24
118 __le32 major_version; // of rndis (1.0)
119 __le32 minor_version;
120 __le32 max_transfer_size;
121 } __attribute__ ((packed));
123 struct rndis_init_c { /* IN */
125 __le32 msg_type; /* RNDIS_MSG_INIT_C */
129 __le32 major_version; // of rndis (1.0)
130 __le32 minor_version;
132 __le32 medium; // zero == 802.3
133 __le32 max_packets_per_message;
134 __le32 max_transfer_size;
135 __le32 packet_alignment; // max 7; (1<<n) bytes
136 __le32 af_list_offset; // zero
137 __le32 af_list_size; // zero
138 } __attribute__ ((packed));
140 struct rndis_halt { /* OUT (no reply) */
142 __le32 msg_type; /* RNDIS_MSG_HALT */
145 } __attribute__ ((packed));
147 struct rndis_query { /* OUT */
149 __le32 msg_type; /* RNDIS_MSG_QUERY */
155 /*?*/ __le32 handle; // zero
156 } __attribute__ ((packed));
158 struct rndis_query_c { /* IN */
160 __le32 msg_type; /* RNDIS_MSG_QUERY_C */
166 } __attribute__ ((packed));
168 struct rndis_set { /* OUT */
170 __le32 msg_type; /* RNDIS_MSG_SET */
176 /*?*/ __le32 handle; // zero
177 } __attribute__ ((packed));
179 struct rndis_set_c { /* IN */
181 __le32 msg_type; /* RNDIS_MSG_SET_C */
185 } __attribute__ ((packed));
187 struct rndis_reset { /* IN */
189 __le32 msg_type; /* RNDIS_MSG_RESET */
192 } __attribute__ ((packed));
194 struct rndis_reset_c { /* OUT */
196 __le32 msg_type; /* RNDIS_MSG_RESET_C */
199 __le32 addressing_lost;
200 } __attribute__ ((packed));
202 struct rndis_indicate { /* IN (unrequested) */
204 __le32 msg_type; /* RNDIS_MSG_INDICATE */
209 /**/ __le32 diag_status;
212 } __attribute__ ((packed));
214 struct rndis_keepalive { /* OUT (optionally IN) */
216 __le32 msg_type; /* RNDIS_MSG_KEEPALIVE */
219 } __attribute__ ((packed));
221 struct rndis_keepalive_c { /* IN (optionally OUT) */
223 __le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */
227 } __attribute__ ((packed));
229 /* NOTE: about 30 OIDs are "mandatory" for peripherals to support ... and
230 * there are gobs more that may optionally be supported. We'll avoid as much
231 * of that mess as possible.
233 #define OID_802_3_PERMANENT_ADDRESS ccpu2(0x01010101)
234 #define OID_GEN_MAXIMUM_FRAME_SIZE ccpu2(0x00010106)
235 #define OID_GEN_CURRENT_PACKET_FILTER ccpu2(0x0001010e)
236 #define OID_GEN_PHYSICAL_MEDIUM ccpu2(0x00010202)
238 /* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
239 #define RNDIS_PACKET_TYPE_DIRECTED ccpu2(0x00000001)
240 #define RNDIS_PACKET_TYPE_MULTICAST ccpu2(0x00000002)
241 #define RNDIS_PACKET_TYPE_ALL_MULTICAST ccpu2(0x00000004)
242 #define RNDIS_PACKET_TYPE_BROADCAST ccpu2(0x00000008)
243 #define RNDIS_PACKET_TYPE_SOURCE_ROUTING ccpu2(0x00000010)
244 #define RNDIS_PACKET_TYPE_PROMISCUOUS ccpu2(0x00000020)
245 #define RNDIS_PACKET_TYPE_SMT ccpu2(0x00000040)
246 #define RNDIS_PACKET_TYPE_ALL_LOCAL ccpu2(0x00000080)
247 #define RNDIS_PACKET_TYPE_GROUP ccpu2(0x00001000)
248 #define RNDIS_PACKET_TYPE_ALL_FUNCTIONAL ccpu2(0x00002000)
249 #define RNDIS_PACKET_TYPE_FUNCTIONAL ccpu2(0x00004000)
250 #define RNDIS_PACKET_TYPE_MAC_FRAME ccpu2(0x00008000)
252 /* default filter used with RNDIS devices */
253 #define RNDIS_DEFAULT_FILTER ( \
254 RNDIS_PACKET_TYPE_DIRECTED | \
255 RNDIS_PACKET_TYPE_BROADCAST | \
256 RNDIS_PACKET_TYPE_ALL_MULTICAST | \
257 RNDIS_PACKET_TYPE_PROMISCUOUS)
259 /* Flags to require specific physical medium type for generic_rndis_bind() */
260 #define FLAG_RNDIS_PHYM_NOT_WIRELESS 0x0001
261 #define FLAG_RNDIS_PHYM_WIRELESS 0x0002
264 extern void rndis_status(struct usbnet *dev, struct urb *urb);
265 extern int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf);
267 generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags);
268 extern void rndis_unbind(struct usbnet *dev, struct usb_interface *intf);
269 extern int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb);
270 extern struct sk_buff *
271 rndis_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags);
273 #endif /* __RNDIS_HOST_H */