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211 lines
5.9 KiB
211 lines
5.9 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Host Side support for RNDIS Networking Links |
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* Copyright (C) 2005 by David Brownell |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#ifndef __LINUX_USB_RNDIS_HOST_H |
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#define __LINUX_USB_RNDIS_HOST_H |
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#include <linux/rndis.h> |
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/* |
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* CONTROL uses CDC "encapsulated commands" with funky notifications. |
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* - control-out: SEND_ENCAPSULATED |
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* - interrupt-in: RESPONSE_AVAILABLE |
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* - control-in: GET_ENCAPSULATED |
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* |
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* We'll try to ignore the RESPONSE_AVAILABLE notifications. |
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* |
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* REVISIT some RNDIS implementations seem to have curious issues still |
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* to be resolved. |
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*/ |
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struct rndis_msg_hdr { |
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__le32 msg_type; /* RNDIS_MSG_* */ |
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__le32 msg_len; |
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/* followed by data that varies between messages */ |
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__le32 request_id; |
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__le32 status; |
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/* ... and more */ |
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} __attribute__ ((packed)); |
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/* MS-Windows uses this strange size, but RNDIS spec says 1024 minimum */ |
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#define CONTROL_BUFFER_SIZE 1025 |
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/* RNDIS defines an (absurdly huge) 10 second control timeout, |
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* but ActiveSync seems to use a more usual 5 second timeout |
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* (which matches the USB 2.0 spec). |
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*/ |
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#define RNDIS_CONTROL_TIMEOUT_MS (5 * 1000) |
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struct rndis_data_hdr { |
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__le32 msg_type; /* RNDIS_MSG_PACKET */ |
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__le32 msg_len; /* rndis_data_hdr + data_len + pad */ |
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__le32 data_offset; /* 36 -- right after header */ |
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__le32 data_len; /* ... real packet size */ |
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__le32 oob_data_offset; /* zero */ |
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__le32 oob_data_len; /* zero */ |
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__le32 num_oob; /* zero */ |
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__le32 packet_data_offset; /* zero */ |
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__le32 packet_data_len; /* zero */ |
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__le32 vc_handle; /* zero */ |
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__le32 reserved; /* zero */ |
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} __attribute__ ((packed)); |
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struct rndis_init { /* OUT */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_INIT */ |
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__le32 msg_len; /* 24 */ |
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__le32 request_id; |
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__le32 major_version; /* of rndis (1.0) */ |
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__le32 minor_version; |
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__le32 max_transfer_size; |
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} __attribute__ ((packed)); |
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struct rndis_init_c { /* IN */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_INIT_C */ |
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__le32 msg_len; |
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__le32 request_id; |
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__le32 status; |
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__le32 major_version; /* of rndis (1.0) */ |
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__le32 minor_version; |
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__le32 device_flags; |
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__le32 medium; /* zero == 802.3 */ |
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__le32 max_packets_per_message; |
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__le32 max_transfer_size; |
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__le32 packet_alignment; /* max 7; (1<<n) bytes */ |
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__le32 af_list_offset; /* zero */ |
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__le32 af_list_size; /* zero */ |
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} __attribute__ ((packed)); |
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struct rndis_halt { /* OUT (no reply) */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_HALT */ |
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__le32 msg_len; |
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__le32 request_id; |
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} __attribute__ ((packed)); |
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struct rndis_query { /* OUT */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_QUERY */ |
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__le32 msg_len; |
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__le32 request_id; |
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__le32 oid; |
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__le32 len; |
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__le32 offset; |
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/*?*/ __le32 handle; /* zero */ |
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} __attribute__ ((packed)); |
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struct rndis_query_c { /* IN */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_QUERY_C */ |
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__le32 msg_len; |
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__le32 request_id; |
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__le32 status; |
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__le32 len; |
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__le32 offset; |
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} __attribute__ ((packed)); |
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struct rndis_set { /* OUT */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_SET */ |
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__le32 msg_len; |
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__le32 request_id; |
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__le32 oid; |
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__le32 len; |
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__le32 offset; |
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/*?*/ __le32 handle; /* zero */ |
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} __attribute__ ((packed)); |
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struct rndis_set_c { /* IN */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_SET_C */ |
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__le32 msg_len; |
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__le32 request_id; |
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__le32 status; |
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} __attribute__ ((packed)); |
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struct rndis_reset { /* IN */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_RESET */ |
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__le32 msg_len; |
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__le32 reserved; |
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} __attribute__ ((packed)); |
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struct rndis_reset_c { /* OUT */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_RESET_C */ |
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__le32 msg_len; |
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__le32 status; |
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__le32 addressing_lost; |
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} __attribute__ ((packed)); |
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struct rndis_indicate { /* IN (unrequested) */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_INDICATE */ |
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__le32 msg_len; |
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__le32 status; |
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__le32 length; |
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__le32 offset; |
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/**/ __le32 diag_status; |
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__le32 error_offset; |
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/**/ __le32 message; |
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} __attribute__ ((packed)); |
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struct rndis_keepalive { /* OUT (optionally IN) */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_KEEPALIVE */ |
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__le32 msg_len; |
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__le32 request_id; |
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} __attribute__ ((packed)); |
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struct rndis_keepalive_c { /* IN (optionally OUT) */ |
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/* header and: */ |
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__le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */ |
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__le32 msg_len; |
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__le32 request_id; |
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__le32 status; |
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} __attribute__ ((packed)); |
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/* default filter used with RNDIS devices */ |
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#define RNDIS_DEFAULT_FILTER ( \ |
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RNDIS_PACKET_TYPE_DIRECTED | \ |
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RNDIS_PACKET_TYPE_BROADCAST | \ |
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RNDIS_PACKET_TYPE_ALL_MULTICAST | \ |
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RNDIS_PACKET_TYPE_PROMISCUOUS) |
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/* Flags to require specific physical medium type for generic_rndis_bind() */ |
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#define FLAG_RNDIS_PHYM_NOT_WIRELESS 0x0001 |
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#define FLAG_RNDIS_PHYM_WIRELESS 0x0002 |
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/* Flags for driver_info::data */ |
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#define RNDIS_DRIVER_DATA_POLL_STATUS 1 /* poll status before control */ |
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extern void rndis_status(struct usbnet *dev, struct urb *urb); |
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extern int |
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rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen); |
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extern int |
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generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags); |
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extern void rndis_unbind(struct usbnet *dev, struct usb_interface *intf); |
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extern int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb); |
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extern struct sk_buff * |
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rndis_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags); |
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#endif /* __LINUX_USB_RNDIS_HOST_H */
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