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Date: Sun, 27 Jan 2008 22:49:42 -0800
From: David Brownell <david-b@...bell.net>
To: Jussi Kivilinna <jussi.kivilinna@...et.fi>
Cc: linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
bjd@...z.net
Subject: Re: [PATCH 12/14 v2] [rndis_host] Add RNDIS physical medium checking into generic_rndis_bind()
On Sunday 27 January 2008, Jussi Kivilinna wrote:
> Add RNDIS physical medium checking into generic_rndis_bind() and also make
> rndis_host to be only bind on every medium except wireless.
>
> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@...et.fi>
Acked-by: David Brownell <dbrownell@...rs.sourceforge.net>
I think that means the whole series is fair to merge into
the network drivers queue, assuming nobody has any issues
with the last patch (adding the actual rndis_wlan support).
Thanks for doing this ... it's nice to see folk successfully
building on top of this rndis_host code, since it started
without any "real" RNDIS devices to test against! (Just the
Linux-USB "g_ether" peripheral code.)
- Dave
> ---
>
> drivers/net/usb/rndis_host.c | 36 +++++++++++++++++++++++++++++++++---
> drivers/net/usb/rndis_host.h | 19 ++++++++++++++++++-
> 2 files changed, 51 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
> index 800c9d0..0606e11 100644
> --- a/drivers/net/usb/rndis_host.c
> +++ b/drivers/net/usb/rndis_host.c
> @@ -271,7 +271,8 @@ response_error:
> return -EDOM;
> }
>
> -int generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf)
> +int
> +generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
> {
> int retval;
> struct net_device *net = dev->net;
> @@ -287,7 +288,7 @@ int generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf)
> struct rndis_set_c *set_c;
> struct rndis_halt *halt;
> } u;
> - u32 tmp;
> + u32 tmp, *phym;
> int reply_len;
> unsigned char *bp;
>
> @@ -358,6 +359,30 @@ int generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf)
> dev->driver_info->early_init(dev) != 0)
> goto halt_fail_and_release;
>
> + /* Check physical medium */
> + reply_len = sizeof *phym;
> + retval = rndis_query(dev, intf, u.buf, OID_GEN_PHYSICAL_MEDIUM,
> + 0, (void **) &phym, &reply_len);
> + if (retval != 0)
> + /* OID is optional so don't fail here. */
> + *phym = RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED;
> + if ((flags & FLAG_RNDIS_PHYM_WIRELESS) &&
> + *phym != RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
> + if (netif_msg_probe(dev))
> + dev_dbg(&intf->dev, "driver requires wireless "
> + "physical medium, but device is not.\n");
> + retval = -ENODEV;
> + goto halt_fail_and_release;
> + }
> + if ((flags & FLAG_RNDIS_PHYM_NOT_WIRELESS) &&
> + *phym == RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
> + if (netif_msg_probe(dev))
> + dev_dbg(&intf->dev, "driver requires non-wireless "
> + "physical medium, but device is wireless.\n");
> + retval = -ENODEV;
> + goto halt_fail_and_release;
> + }
> +
> /* Get designated host ethernet address */
> reply_len = ETH_ALEN;
> retval = rndis_query(dev, intf, u.buf, OID_802_3_PERMANENT_ADDRESS,
> @@ -403,6 +428,11 @@ fail:
> }
> EXPORT_SYMBOL_GPL(generic_rndis_bind);
>
> +static int rndis_bind(struct usbnet *dev, struct usb_interface *intf)
> +{
> + return generic_rndis_bind(dev, intf, FLAG_RNDIS_PHYM_NOT_WIRELESS);
> +}
> +
> void rndis_unbind(struct usbnet *dev, struct usb_interface *intf)
> {
> struct rndis_halt *halt;
> @@ -518,7 +548,7 @@ EXPORT_SYMBOL_GPL(rndis_tx_fixup);
> static const struct driver_info rndis_info = {
> .description = "RNDIS device",
> .flags = FLAG_ETHER | FLAG_FRAMING_RN | FLAG_NO_SETINT,
> - .bind = generic_rndis_bind,
> + .bind = rndis_bind,
> .unbind = rndis_unbind,
> .status = rndis_status,
> .rx_fixup = rndis_rx_fixup,
> diff --git a/drivers/net/usb/rndis_host.h b/drivers/net/usb/rndis_host.h
> index 61f1fd8..edc1d4a 100644
> --- a/drivers/net/usb/rndis_host.h
> +++ b/drivers/net/usb/rndis_host.h
> @@ -82,6 +82,17 @@ struct rndis_msg_hdr {
> #define RNDIS_STATUS_MEDIA_CONNECT ccpu2(0x4001000b)
> #define RNDIS_STATUS_MEDIA_DISCONNECT ccpu2(0x4001000c)
>
> +/* codes for OID_GEN_PHYSICAL_MEDIUM */
> +#define RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED ccpu2(0x00000000)
> +#define RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN ccpu2(0x00000001)
> +#define RNDIS_PHYSICAL_MEDIUM_CABLE_MODEM ccpu2(0x00000002)
> +#define RNDIS_PHYSICAL_MEDIUM_PHONE_LINE ccpu2(0x00000003)
> +#define RNDIS_PHYSICAL_MEDIUM_POWER_LINE ccpu2(0x00000004)
> +#define RNDIS_PHYSICAL_MEDIUM_DSL ccpu2(0x00000005)
> +#define RNDIS_PHYSICAL_MEDIUM_FIBRE_CHANNEL ccpu2(0x00000006)
> +#define RNDIS_PHYSICAL_MEDIUM_1394 ccpu2(0x00000007)
> +#define RNDIS_PHYSICAL_MEDIUM_WIRELESS_WAN ccpu2(0x00000008)
> +#define RNDIS_PHYSICAL_MEDIUM_MAX ccpu2(0x00000009)
>
> struct rndis_data_hdr {
> __le32 msg_type; /* RNDIS_MSG_PACKET */
> @@ -222,6 +233,7 @@ struct rndis_keepalive_c { /* IN (optionally OUT) */
> #define OID_802_3_PERMANENT_ADDRESS ccpu2(0x01010101)
> #define OID_GEN_MAXIMUM_FRAME_SIZE ccpu2(0x00010106)
> #define OID_GEN_CURRENT_PACKET_FILTER ccpu2(0x0001010e)
> +#define OID_GEN_PHYSICAL_MEDIUM ccpu2(0x00010202)
>
> /* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
> #define RNDIS_PACKET_TYPE_DIRECTED ccpu2(0x00000001)
> @@ -244,10 +256,15 @@ struct rndis_keepalive_c { /* IN (optionally OUT) */
> RNDIS_PACKET_TYPE_ALL_MULTICAST | \
> RNDIS_PACKET_TYPE_PROMISCUOUS)
>
> +/* Flags to require specific physical medium type for generic_rndis_bind() */
> +#define FLAG_RNDIS_PHYM_NOT_WIRELESS 0x0001
> +#define FLAG_RNDIS_PHYM_WIRELESS 0x0002
> +
>
> extern void rndis_status(struct usbnet *dev, struct urb *urb);
> extern int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf);
> -extern int generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf);
> +extern int
> +generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags);
> extern void rndis_unbind(struct usbnet *dev, struct usb_interface *intf);
> extern int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb);
> extern struct sk_buff *
>
--
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