From 52409fae3e4b8d16b68b61902fc09075cd97b75d Mon Sep 17 00:00:00 2001 From: Dominik Sliwa Date: Sun, 2 Jul 2017 16:41:37 +0200 Subject: Backports generated from 4.11 kernel Initial commit. Signed-off-by: Dominik Sliwa --- include/linux/usb/rndis_host.h | 210 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 include/linux/usb/rndis_host.h (limited to 'include/linux/usb/rndis_host.h') diff --git a/include/linux/usb/rndis_host.h b/include/linux/usb/rndis_host.h new file mode 100644 index 0000000..d44ef85 --- /dev/null +++ b/include/linux/usb/rndis_host.h @@ -0,0 +1,210 @@ +/* + * Host Side support for RNDIS Networking Links + * Copyright (C) 2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __LINUX_USB_RNDIS_HOST_H +#define __LINUX_USB_RNDIS_HOST_H + +#include + +/* + * CONTROL uses CDC "encapsulated commands" with funky notifications. + * - control-out: SEND_ENCAPSULATED + * - interrupt-in: RESPONSE_AVAILABLE + * - control-in: GET_ENCAPSULATED + * + * We'll try to ignore the RESPONSE_AVAILABLE notifications. + * + * REVISIT some RNDIS implementations seem to have curious issues still + * to be resolved. + */ +struct rndis_msg_hdr { + __le32 msg_type; /* RNDIS_MSG_* */ + __le32 msg_len; + /* followed by data that varies between messages */ + __le32 request_id; + __le32 status; + /* ... and more */ +} __attribute__ ((packed)); + +/* MS-Windows uses this strange size, but RNDIS spec says 1024 minimum */ +#define CONTROL_BUFFER_SIZE 1025 + +/* RNDIS defines an (absurdly huge) 10 second control timeout, + * but ActiveSync seems to use a more usual 5 second timeout + * (which matches the USB 2.0 spec). + */ +#define RNDIS_CONTROL_TIMEOUT_MS (5 * 1000) + +struct rndis_data_hdr { + __le32 msg_type; /* RNDIS_MSG_PACKET */ + __le32 msg_len; /* rndis_data_hdr + data_len + pad */ + __le32 data_offset; /* 36 -- right after header */ + __le32 data_len; /* ... real packet size */ + + __le32 oob_data_offset; /* zero */ + __le32 oob_data_len; /* zero */ + __le32 num_oob; /* zero */ + __le32 packet_data_offset; /* zero */ + + __le32 packet_data_len; /* zero */ + __le32 vc_handle; /* zero */ + __le32 reserved; /* zero */ +} __attribute__ ((packed)); + +struct rndis_init { /* OUT */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_INIT */ + __le32 msg_len; /* 24 */ + __le32 request_id; + __le32 major_version; /* of rndis (1.0) */ + __le32 minor_version; + __le32 max_transfer_size; +} __attribute__ ((packed)); + +struct rndis_init_c { /* IN */ + /* header and: */ + __le32 msg_type; /* RNDIS_MSG_INIT_C */ + __le32 msg_len; + __le32 request_id; + __le32 status; + __le32 major_version; /* of rndis (1.0) */ + __le32 minor_version; + __le32 device_flags; + __le32 medium; /* zero == 802.3 */ + __le32 max_packets_per_message; + __le32 max_transfer_size; + __le32 packet_alignment; /* max 7; (1<