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Date: Thu, 24 Jan 2008 16:58:19 -0800
From: David Brownell <david-b@...bell.net>
To: Jussi Kivilinna <jussi.kivilinna@...et.fi>
Cc: linux-wireless@...r.kernel.org, bjd@...z.net,
netdev@...r.kernel.org
Subject: Re: [PATCH 07/14] [rndis_host] Split up rndis_host.c
On Saturday 19 January 2008, Jussi Kivilinna wrote:
> Split up rndis_host.c into rndis_host.h and rndis_base.c. This is done so
> that rndis_wext can reuse common parts with rndis_host.
>
> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@...et.fi>
Acked-by: David Brownell <dbrownell@...rs.sourceforge.net>
> ---
>
> drivers/net/usb/rndis_host.c | 223 --------------------------------------
> drivers/net/usb/rndis_host.h | 248 ++++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 249 insertions(+), 222 deletions(-)
>
> diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
> index 12daf9c..29d7e3b 100644
> --- a/drivers/net/usb/rndis_host.c
> +++ b/drivers/net/usb/rndis_host.c
> @@ -31,6 +31,7 @@
> #include <linux/usb/cdc.h>
>
> #include "usbnet.h"
> +#include "rndis_host.h"
>
>
> /*
> @@ -56,228 +57,6 @@
> */
>
> /*
> - * 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)
> -
> -
> -#define ccpu2 __constant_cpu_to_le32
> -
> -#define RNDIS_MSG_COMPLETION ccpu2(0x80000000)
> -
> -/* codes for "msg_type" field of rndis messages;
> - * only the data channel uses packet messages (maybe batched);
> - * everything else goes on the control channel.
> - */
> -#define RNDIS_MSG_PACKET ccpu2(0x00000001) /* 1-N packets */
> -#define RNDIS_MSG_INIT ccpu2(0x00000002)
> -#define RNDIS_MSG_INIT_C (RNDIS_MSG_INIT|RNDIS_MSG_COMPLETION)
> -#define RNDIS_MSG_HALT ccpu2(0x00000003)
> -#define RNDIS_MSG_QUERY ccpu2(0x00000004)
> -#define RNDIS_MSG_QUERY_C (RNDIS_MSG_QUERY|RNDIS_MSG_COMPLETION)
> -#define RNDIS_MSG_SET ccpu2(0x00000005)
> -#define RNDIS_MSG_SET_C (RNDIS_MSG_SET|RNDIS_MSG_COMPLETION)
> -#define RNDIS_MSG_RESET ccpu2(0x00000006)
> -#define RNDIS_MSG_RESET_C (RNDIS_MSG_RESET|RNDIS_MSG_COMPLETION)
> -#define RNDIS_MSG_INDICATE ccpu2(0x00000007)
> -#define RNDIS_MSG_KEEPALIVE ccpu2(0x00000008)
> -#define RNDIS_MSG_KEEPALIVE_C (RNDIS_MSG_KEEPALIVE|RNDIS_MSG_COMPLETION)
> -
> -/* codes for "status" field of completion messages */
> -#define RNDIS_STATUS_SUCCESS ccpu2(0x00000000)
> -#define RNDIS_STATUS_FAILURE ccpu2(0xc0000001)
> -#define RNDIS_STATUS_INVALID_DATA ccpu2(0xc0010015)
> -#define RNDIS_STATUS_NOT_SUPPORTED ccpu2(0xc00000bb)
> -#define RNDIS_STATUS_MEDIA_CONNECT ccpu2(0x4001000b)
> -#define RNDIS_STATUS_MEDIA_DISCONNECT ccpu2(0x4001000c)
> -
> -
> -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<<n) bytes
> - __le32 af_list_offset; // zero
> - __le32 af_list_size; // zero
> -} __attribute__ ((packed));
> -
> -struct rndis_halt { /* OUT (no reply) */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_HALT */
> - __le32 msg_len;
> - __le32 request_id;
> -} __attribute__ ((packed));
> -
> -struct rndis_query { /* OUT */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_QUERY */
> - __le32 msg_len;
> - __le32 request_id;
> - __le32 oid;
> - __le32 len;
> - __le32 offset;
> -/*?*/ __le32 handle; // zero
> -} __attribute__ ((packed));
> -
> -struct rndis_query_c { /* IN */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_QUERY_C */
> - __le32 msg_len;
> - __le32 request_id;
> - __le32 status;
> - __le32 len;
> - __le32 offset;
> -} __attribute__ ((packed));
> -
> -struct rndis_set { /* OUT */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_SET */
> - __le32 msg_len;
> - __le32 request_id;
> - __le32 oid;
> - __le32 len;
> - __le32 offset;
> -/*?*/ __le32 handle; // zero
> -} __attribute__ ((packed));
> -
> -struct rndis_set_c { /* IN */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_SET_C */
> - __le32 msg_len;
> - __le32 request_id;
> - __le32 status;
> -} __attribute__ ((packed));
> -
> -struct rndis_reset { /* IN */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_RESET */
> - __le32 msg_len;
> - __le32 reserved;
> -} __attribute__ ((packed));
> -
> -struct rndis_reset_c { /* OUT */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_RESET_C */
> - __le32 msg_len;
> - __le32 status;
> - __le32 addressing_lost;
> -} __attribute__ ((packed));
> -
> -struct rndis_indicate { /* IN (unrequested) */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_INDICATE */
> - __le32 msg_len;
> - __le32 status;
> - __le32 length;
> - __le32 offset;
> -/**/ __le32 diag_status;
> - __le32 error_offset;
> -/**/ __le32 message;
> -} __attribute__ ((packed));
> -
> -struct rndis_keepalive { /* OUT (optionally IN) */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_KEEPALIVE */
> - __le32 msg_len;
> - __le32 request_id;
> -} __attribute__ ((packed));
> -
> -struct rndis_keepalive_c { /* IN (optionally OUT) */
> - // header and:
> - __le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */
> - __le32 msg_len;
> - __le32 request_id;
> - __le32 status;
> -} __attribute__ ((packed));
> -
> -/* NOTE: about 30 OIDs are "mandatory" for peripherals to support ... and
> - * there are gobs more that may optionally be supported. We'll avoid as much
> - * of that mess as possible.
> - */
> -#define OID_802_3_PERMANENT_ADDRESS ccpu2(0x01010101)
> -#define OID_GEN_MAXIMUM_FRAME_SIZE ccpu2(0x00010106)
> -#define OID_GEN_CURRENT_PACKET_FILTER ccpu2(0x0001010e)
> -
> -/* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
> -#define RNDIS_PACKET_TYPE_DIRECTED ccpu2(0x00000001)
> -#define RNDIS_PACKET_TYPE_MULTICAST ccpu2(0x00000002)
> -#define RNDIS_PACKET_TYPE_ALL_MULTICAST ccpu2(0x00000004)
> -#define RNDIS_PACKET_TYPE_BROADCAST ccpu2(0x00000008)
> -#define RNDIS_PACKET_TYPE_SOURCE_ROUTING ccpu2(0x00000010)
> -#define RNDIS_PACKET_TYPE_PROMISCUOUS ccpu2(0x00000020)
> -#define RNDIS_PACKET_TYPE_SMT ccpu2(0x00000040)
> -#define RNDIS_PACKET_TYPE_ALL_LOCAL ccpu2(0x00000080)
> -#define RNDIS_PACKET_TYPE_GROUP ccpu2(0x00001000)
> -#define RNDIS_PACKET_TYPE_ALL_FUNCTIONAL ccpu2(0x00002000)
> -#define RNDIS_PACKET_TYPE_FUNCTIONAL ccpu2(0x00004000)
> -#define RNDIS_PACKET_TYPE_MAC_FRAME ccpu2(0x00008000)
> -
> -/* default filter used with RNDIS devices */
> -#define RNDIS_DEFAULT_FILTER ( \
> - RNDIS_PACKET_TYPE_DIRECTED | \
> - RNDIS_PACKET_TYPE_BROADCAST | \
> - RNDIS_PACKET_TYPE_ALL_MULTICAST | \
> - RNDIS_PACKET_TYPE_PROMISCUOUS)
> -
> -/*
> * RNDIS notifications from device: command completion; "reverse"
> * keepalives; etc
> */
> diff --git a/drivers/net/usb/rndis_host.h b/drivers/net/usb/rndis_host.h
> new file mode 100644
> index 0000000..1386a17
> --- /dev/null
> +++ b/drivers/net/usb/rndis_host.h
> @@ -0,0 +1,248 @@
> +/*
> + * 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 __RNDIS_HOST_H
> +#define __RNDIS_HOST_H
> +
> +
> +/*
> + * 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)
> +
> +
> +#define ccpu2 __constant_cpu_to_le32
> +
> +#define RNDIS_MSG_COMPLETION ccpu2(0x80000000)
> +
> +/* codes for "msg_type" field of rndis messages;
> + * only the data channel uses packet messages (maybe batched);
> + * everything else goes on the control channel.
> + */
> +#define RNDIS_MSG_PACKET ccpu2(0x00000001) /* 1-N packets */
> +#define RNDIS_MSG_INIT ccpu2(0x00000002)
> +#define RNDIS_MSG_INIT_C (RNDIS_MSG_INIT|RNDIS_MSG_COMPLETION)
> +#define RNDIS_MSG_HALT ccpu2(0x00000003)
> +#define RNDIS_MSG_QUERY ccpu2(0x00000004)
> +#define RNDIS_MSG_QUERY_C (RNDIS_MSG_QUERY|RNDIS_MSG_COMPLETION)
> +#define RNDIS_MSG_SET ccpu2(0x00000005)
> +#define RNDIS_MSG_SET_C (RNDIS_MSG_SET|RNDIS_MSG_COMPLETION)
> +#define RNDIS_MSG_RESET ccpu2(0x00000006)
> +#define RNDIS_MSG_RESET_C (RNDIS_MSG_RESET|RNDIS_MSG_COMPLETION)
> +#define RNDIS_MSG_INDICATE ccpu2(0x00000007)
> +#define RNDIS_MSG_KEEPALIVE ccpu2(0x00000008)
> +#define RNDIS_MSG_KEEPALIVE_C (RNDIS_MSG_KEEPALIVE|RNDIS_MSG_COMPLETION)
> +
> +/* codes for "status" field of completion messages */
> +#define RNDIS_STATUS_SUCCESS ccpu2(0x00000000)
> +#define RNDIS_STATUS_FAILURE ccpu2(0xc0000001)
> +#define RNDIS_STATUS_INVALID_DATA ccpu2(0xc0010015)
> +#define RNDIS_STATUS_NOT_SUPPORTED ccpu2(0xc00000bb)
> +#define RNDIS_STATUS_MEDIA_CONNECT ccpu2(0x4001000b)
> +#define RNDIS_STATUS_MEDIA_DISCONNECT ccpu2(0x4001000c)
> +
> +
> +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<<n) bytes
> + __le32 af_list_offset; // zero
> + __le32 af_list_size; // zero
> +} __attribute__ ((packed));
> +
> +struct rndis_halt { /* OUT (no reply) */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_HALT */
> + __le32 msg_len;
> + __le32 request_id;
> +} __attribute__ ((packed));
> +
> +struct rndis_query { /* OUT */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_QUERY */
> + __le32 msg_len;
> + __le32 request_id;
> + __le32 oid;
> + __le32 len;
> + __le32 offset;
> +/*?*/ __le32 handle; // zero
> +} __attribute__ ((packed));
> +
> +struct rndis_query_c { /* IN */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_QUERY_C */
> + __le32 msg_len;
> + __le32 request_id;
> + __le32 status;
> + __le32 len;
> + __le32 offset;
> +} __attribute__ ((packed));
> +
> +struct rndis_set { /* OUT */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_SET */
> + __le32 msg_len;
> + __le32 request_id;
> + __le32 oid;
> + __le32 len;
> + __le32 offset;
> +/*?*/ __le32 handle; // zero
> +} __attribute__ ((packed));
> +
> +struct rndis_set_c { /* IN */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_SET_C */
> + __le32 msg_len;
> + __le32 request_id;
> + __le32 status;
> +} __attribute__ ((packed));
> +
> +struct rndis_reset { /* IN */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_RESET */
> + __le32 msg_len;
> + __le32 reserved;
> +} __attribute__ ((packed));
> +
> +struct rndis_reset_c { /* OUT */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_RESET_C */
> + __le32 msg_len;
> + __le32 status;
> + __le32 addressing_lost;
> +} __attribute__ ((packed));
> +
> +struct rndis_indicate { /* IN (unrequested) */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_INDICATE */
> + __le32 msg_len;
> + __le32 status;
> + __le32 length;
> + __le32 offset;
> +/**/ __le32 diag_status;
> + __le32 error_offset;
> +/**/ __le32 message;
> +} __attribute__ ((packed));
> +
> +struct rndis_keepalive { /* OUT (optionally IN) */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_KEEPALIVE */
> + __le32 msg_len;
> + __le32 request_id;
> +} __attribute__ ((packed));
> +
> +struct rndis_keepalive_c { /* IN (optionally OUT) */
> + // header and:
> + __le32 msg_type; /* RNDIS_MSG_KEEPALIVE_C */
> + __le32 msg_len;
> + __le32 request_id;
> + __le32 status;
> +} __attribute__ ((packed));
> +
> +/* NOTE: about 30 OIDs are "mandatory" for peripherals to support ... and
> + * there are gobs more that may optionally be supported. We'll avoid as much
> + * of that mess as possible.
> + */
> +#define OID_802_3_PERMANENT_ADDRESS ccpu2(0x01010101)
> +#define OID_GEN_MAXIMUM_FRAME_SIZE ccpu2(0x00010106)
> +#define OID_GEN_CURRENT_PACKET_FILTER ccpu2(0x0001010e)
> +
> +/* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
> +#define RNDIS_PACKET_TYPE_DIRECTED ccpu2(0x00000001)
> +#define RNDIS_PACKET_TYPE_MULTICAST ccpu2(0x00000002)
> +#define RNDIS_PACKET_TYPE_ALL_MULTICAST ccpu2(0x00000004)
> +#define RNDIS_PACKET_TYPE_BROADCAST ccpu2(0x00000008)
> +#define RNDIS_PACKET_TYPE_SOURCE_ROUTING ccpu2(0x00000010)
> +#define RNDIS_PACKET_TYPE_PROMISCUOUS ccpu2(0x00000020)
> +#define RNDIS_PACKET_TYPE_SMT ccpu2(0x00000040)
> +#define RNDIS_PACKET_TYPE_ALL_LOCAL ccpu2(0x00000080)
> +#define RNDIS_PACKET_TYPE_GROUP ccpu2(0x00001000)
> +#define RNDIS_PACKET_TYPE_ALL_FUNCTIONAL ccpu2(0x00002000)
> +#define RNDIS_PACKET_TYPE_FUNCTIONAL ccpu2(0x00004000)
> +#define RNDIS_PACKET_TYPE_MAC_FRAME ccpu2(0x00008000)
> +
> +/* default filter used with RNDIS devices */
> +#define RNDIS_DEFAULT_FILTER ( \
> + RNDIS_PACKET_TYPE_DIRECTED | \
> + RNDIS_PACKET_TYPE_BROADCAST | \
> + RNDIS_PACKET_TYPE_ALL_MULTICAST | \
> + RNDIS_PACKET_TYPE_PROMISCUOUS)
> +
> +#endif /* __RNDIS_HOST_H */
> +
>
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