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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
  pxa168_eth: fix race in transmit path.
  ipv4, ping: Remove duplicate icmp.h include
  netxen: fix race in skb->len access
  sgi-xp: fix a use after free
  hp100: fix an skb->len race
  netpoll: copy dev name of slaves to struct netpoll
  ipv4: fix multicast losses
  r8169: fix static initializers.
  inet_diag: fix inet_diag_bc_audit()
  gigaset: call module_put before restart of if_open()
  farsync: add module_put to error path in fst_open()
  net: rfs: enable RFS before first data packet is received
  fs_enet: fix freescale FCC ethernet dp buffer alignment
  netdev: bfin_mac: fix memory leak when freeing dma descriptors
  vlan: don't call ndo_vlan_rx_register on hardware that doesn't have vlan support
  caif: Bugfix - XOFF removed channel from caif-mux
  tun: teach the tun/tap driver to support netpoll
  dp83640: drop PHY status frames in the driver.
  dp83640: fix phy status frame event parsing
  phylib: Allow BCM63XX PHY to be selected only on BCM63XX.
  ...
This commit is contained in:
Linus Torvalds 2011-06-20 20:10:18 -07:00
parent 3669820650 384420409d
commit 6e158d2198
48 changed files with 563 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
MAINTAINERS
View File

@ -2291,8 +2291,7 @@ F: drivers/scsi/eata_pio.*
EBTABLES
M: Bart De Schuymer <bart.de.schuymer@pandora.be>
L: ebtables-user@lists.sourceforge.net
L: ebtables-devel@lists.sourceforge.net
L: netfilter-devel@vger.kernel.org
W: http://ebtables.sourceforge.net/
S: Maintained
F: include/linux/netfilter_bridge/ebt_*.h

12
drivers/bluetooth/btmrvl_debugfs.c
View File

@ -64,6 +64,8 @@ static ssize_t btmrvl_hscfgcmd_write(struct file *file,
return -EFAULT;
ret = strict_strtol(buf, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.hscfgcmd = result;
@ -108,6 +110,8 @@ static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf,
return -EFAULT;
ret = strict_strtol(buf, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.psmode = result;
@ -147,6 +151,8 @@ static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
return -EFAULT;
ret = strict_strtol(buf, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.pscmd = result;
@ -191,6 +197,8 @@ static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf,
return -EFAULT;
ret = strict_strtol(buf, 16, &result);
if (ret)
return ret;
priv->btmrvl_dev.gpio_gap = result;
@ -230,6 +238,8 @@ static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
return -EFAULT;
ret = strict_strtol(buf, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.hscmd = result;
if (priv->btmrvl_dev.hscmd) {
@ -272,6 +282,8 @@ static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf,
return -EFAULT;
ret = strict_strtol(buf, 10, &result);
if (ret)
return ret;
priv->btmrvl_dev.hsmode = result;

4
drivers/isdn/gigaset/interface.c
View File

@ -156,8 +156,10 @@ static int if_open(struct tty_struct *tty, struct file *filp)
if (!cs || !try_module_get(cs->driver->owner))
return -ENODEV;
if (mutex_lock_interruptible(&cs->mutex))
if (mutex_lock_interruptible(&cs->mutex)) {
module_put(cs->driver->owner);
return -ERESTARTSYS;
}
tty->driver_data = cs;
++cs->open_count;

6
drivers/misc/sgi-xp/xpnet.c
View File

@ -495,14 +495,14 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
}
}
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
if (atomic_dec_return(&queued_msg->use_count) == 0) {
dev_kfree_skb(skb);
kfree(queued_msg);
}
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
return NETDEV_TX_OK;
}

3
drivers/net/3c503.c
View File

@ -412,7 +412,7 @@ el2_open(struct net_device *dev)
outb_p(0x04 << ((*irqp == 9) ? 2 : *irqp), E33G_IDCFR);
outb_p(0x00, E33G_IDCFR);
msleep(1);
free_irq(*irqp, el2_probe_interrupt);
free_irq(*irqp, &seen);
if (!seen)
continue;
@ -422,6 +422,7 @@ el2_open(struct net_device *dev)
continue;
if (retval < 0)
goto err_disable;
break;
} while (*++irqp);
if (*irqp == 0) {

20
drivers/net/bfin_mac.c
View File

@ -52,13 +52,13 @@ MODULE_DESCRIPTION(DRV_DESC);
MODULE_ALIAS("platform:bfin_mac");
#if defined(CONFIG_BFIN_MAC_USE_L1)
# define bfin_mac_alloc(dma_handle, size) l1_data_sram_zalloc(size)
# define bfin_mac_free(dma_handle, ptr) l1_data_sram_free(ptr)
# define bfin_mac_alloc(dma_handle, size, num) l1_data_sram_zalloc(size*num)
# define bfin_mac_free(dma_handle, ptr, num) l1_data_sram_free(ptr)
#else
# define bfin_mac_alloc(dma_handle, size) \
dma_alloc_coherent(NULL, size, dma_handle, GFP_KERNEL)
# define bfin_mac_free(dma_handle, ptr) \
dma_free_coherent(NULL, sizeof(*ptr), ptr, dma_handle)
# define bfin_mac_alloc(dma_handle, size, num) \
dma_alloc_coherent(NULL, size*num, dma_handle, GFP_KERNEL)
# define bfin_mac_free(dma_handle, ptr, num) \
dma_free_coherent(NULL, sizeof(*ptr)*num, ptr, dma_handle)
#endif
#define PKT_BUF_SZ 1580
@ -95,7 +95,7 @@ static void desc_list_free(void)
t = t->next;
}
}
bfin_mac_free(dma_handle, tx_desc);
bfin_mac_free(dma_handle, tx_desc, CONFIG_BFIN_TX_DESC_NUM);
}
if (rx_desc) {
@ -109,7 +109,7 @@ static void desc_list_free(void)
r = r->next;
}
}
bfin_mac_free(dma_handle, rx_desc);
bfin_mac_free(dma_handle, rx_desc, CONFIG_BFIN_RX_DESC_NUM);
}
}
@ -126,13 +126,13 @@ static int desc_list_init(void)
#endif
tx_desc = bfin_mac_alloc(&dma_handle,
sizeof(struct net_dma_desc_tx) *
sizeof(struct net_dma_desc_tx),
CONFIG_BFIN_TX_DESC_NUM);
if (tx_desc == NULL)
goto init_error;
rx_desc = bfin_mac_alloc(&dma_handle,
sizeof(struct net_dma_desc_rx) *
sizeof(struct net_dma_desc_rx),
CONFIG_BFIN_RX_DESC_NUM);
if (rx_desc == NULL)
goto init_error;

1
drivers/net/bonding/bond_main.c
View File

@ -1297,6 +1297,7 @@ static inline int slave_enable_netpoll(struct slave *slave)
goto out;
np->dev = slave->dev;
strlcpy(np->dev_name, slave->dev->name, IFNAMSIZ);
err = __netpoll_setup(np);
if (err) {
kfree(np);

2
drivers/net/fs_enet/mac-fcc.c
View File

@ -105,7 +105,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
goto out_ep;
fep->fcc.mem = (void __iomem *)cpm2_immr;
fpi->dpram_offset = cpm_dpalloc(128, 8);
fpi->dpram_offset = cpm_dpalloc(128, 32);
if (IS_ERR_VALUE(fpi->dpram_offset)) {
ret = fpi->dpram_offset;
goto out_fcccp;

4
drivers/net/hp100.c
View File

@ -1580,12 +1580,12 @@ static netdev_tx_t hp100_start_xmit_bm(struct sk_buff *skb,
hp100_outl(ringptr->pdl_paddr, TX_PDA_L); /* Low Prio. Queue */
lp->txrcommit++;
spin_unlock_irqrestore(&lp->lock, flags);
/* Update statistics */
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
spin_unlock_irqrestore(&lp->lock, flags);
return NETDEV_TX_OK;
drop:

2
drivers/net/hplance.c
View File

@ -135,7 +135,7 @@ static void __devexit hplance_remove_one(struct dio_dev *d)
}
/* Initialise a single lance board at the given DIO device */
static void __init hplance_init(struct net_device *dev, struct dio_dev *d)
static void __devinit hplance_init(struct net_device *dev, struct dio_dev *d)
{
unsigned long va = (d->resource.start + DIO_VIRADDRBASE);
struct hplance_private *lp;

4
drivers/net/netxen/netxen_nic_main.c
View File

@ -1965,11 +1965,11 @@ netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
netxen_tso_check(netdev, tx_ring, first_desc, skb);
netxen_nic_update_cmd_producer(adapter, tx_ring);
adapter->stats.txbytes += skb->len;
adapter->stats.xmitcalled++;
netxen_nic_update_cmd_producer(adapter, tx_ring);
return NETDEV_TX_OK;
drop_packet:

1
drivers/net/phy/Kconfig
View File

@ -58,6 +58,7 @@ config BROADCOM_PHY
config BCM63XX_PHY
tristate "Drivers for Broadcom 63xx SOCs internal PHY"
depends on BCM63XX
---help---
Currently supports the 6348 and 6358 PHYs.

24
drivers/net/phy/dp83640.c
View File

@ -543,11 +543,20 @@ static void recalibrate(struct dp83640_clock *clock)
/* time stamping methods */
static void decode_evnt(struct dp83640_private *dp83640,
struct phy_txts *phy_txts, u16 ests)
static int decode_evnt(struct dp83640_private *dp83640,
void *data, u16 ests)
{
struct phy_txts *phy_txts;
struct ptp_clock_event event;
int words = (ests >> EVNT_TS_LEN_SHIFT) & EVNT_TS_LEN_MASK;
u16 ext_status = 0;
if (ests & MULT_EVNT) {
ext_status = *(u16 *) data;
data += sizeof(ext_status);
}
phy_txts = data;
switch (words) { /* fall through in every case */
case 3:
@ -565,6 +574,9 @@ static void decode_evnt(struct dp83640_private *dp83640,
event.timestamp = phy2txts(&dp83640->edata);
ptp_clock_event(dp83640->clock->ptp_clock, &event);
words = ext_status ? words + 2 : words + 1;
return words * sizeof(u16);
}
static void decode_rxts(struct dp83640_private *dp83640,
@ -643,9 +655,7 @@ static void decode_status_frame(struct dp83640_private *dp83640,
} else if (PSF_EVNT == type && len >= sizeof(*phy_txts)) {
phy_txts = (struct phy_txts *) ptr;
decode_evnt(dp83640, phy_txts, ests);
size = sizeof(*phy_txts);
size = decode_evnt(dp83640, ptr, ests);
} else {
size = 0;
@ -1034,8 +1044,8 @@ static bool dp83640_rxtstamp(struct phy_device *phydev,
if (is_status_frame(skb, type)) {
decode_status_frame(dp83640, skb);
/* Let the stack drop this frame. */
return false;
kfree_skb(skb);
return true;
}
SKB_PTP_TYPE(skb) = type;

4
drivers/net/ppp_async.c
View File

@ -523,7 +523,7 @@ static void ppp_async_process(unsigned long arg)
#define PUT_BYTE(ap, buf, c, islcp) do { \
if ((islcp && c < 0x20) || (ap->xaccm[c >> 5] & (1 << (c & 0x1f)))) {\
*buf++ = PPP_ESCAPE; \
*buf++ = c ^ 0x20; \
*buf++ = c ^ PPP_TRANS; \
} else \
*buf++ = c; \
} while (0)
@ -896,7 +896,7 @@ ppp_async_input(struct asyncppp *ap, const unsigned char *buf,
sp = skb_put(skb, n);
memcpy(sp, buf, n);
if (ap->state & SC_ESCAPE) {
sp[0] ^= 0x20;
sp[0] ^= PPP_TRANS;
ap->state &= ~SC_ESCAPE;
}
}

2
drivers/net/pxa168_eth.c
View File

@ -1273,7 +1273,7 @@ static int pxa168_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
wmb();
wrl(pep, SDMA_CMD, SDMA_CMD_TXDH | SDMA_CMD_ERD);
stats->tx_bytes += skb->len;
stats->tx_bytes += length;
stats->tx_packets++;
dev->trans_start = jiffies;
if (pep->tx_ring_size - pep->tx_desc_count <= 1) {

10
drivers/net/r8169.c
View File

@ -1621,7 +1621,7 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp,
*
* (RTL_R32(TxConfig) & 0x700000) == 0x200000 ? 8101Eb : 8101Ec
*/
static const struct {
static const struct rtl_mac_info {
u32 mask;
u32 val;
int mac_version;
@ -1689,7 +1689,8 @@ static void rtl8169_get_mac_version(struct rtl8169_private *tp,
/* Catch-all */
{ 0x00000000, 0x00000000, RTL_GIGA_MAC_NONE }
}, *p = mac_info;
};
const struct rtl_mac_info *p = mac_info;
u32 reg;
reg = RTL_R32(TxConfig);
@ -3681,7 +3682,7 @@ static void rtl_set_rx_max_size(void __iomem *ioaddr, unsigned int rx_buf_sz)
static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
{
static const struct {
static const struct rtl_cfg2_info {
u32 mac_version;
u32 clk;
u32 val;
@ -3690,7 +3691,8 @@ static void rtl8169_set_magic_reg(void __iomem *ioaddr, unsigned mac_version)
{ RTL_GIGA_MAC_VER_05, PCI_Clock_66MHz, 0x000fffff },
{ RTL_GIGA_MAC_VER_06, PCI_Clock_33MHz, 0x00ffff00 }, // 8110SCe
{ RTL_GIGA_MAC_VER_06, PCI_Clock_66MHz, 0x00ffffff }
}, *p = cfg2_info;
};
const struct rtl_cfg2_info *p = cfg2_info;
unsigned int i;
u32 clk;

24
drivers/net/tun.c
View File

@ -460,7 +460,23 @@ static u32 tun_net_fix_features(struct net_device *dev, u32 features)
return (features & tun->set_features) | (features & ~TUN_USER_FEATURES);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void tun_poll_controller(struct net_device *dev)
{
/*
* Tun only receives frames when:
* 1) the char device endpoint gets data from user space
* 2) the tun socket gets a sendmsg call from user space
* Since both of those are syncronous operations, we are guaranteed
* never to have pending data when we poll for it
* so theres nothing to do here but return.
* We need this though so netpoll recognizes us as an interface that
* supports polling, which enables bridge devices in virt setups to
* still use netconsole
*/
return;
}
#endif
static const struct net_device_ops tun_netdev_ops = {
.ndo_uninit = tun_net_uninit,
.ndo_open = tun_net_open,
@ -468,6 +484,9 @@ static const struct net_device_ops tun_netdev_ops = {
.ndo_start_xmit = tun_net_xmit,
.ndo_change_mtu = tun_net_change_mtu,
.ndo_fix_features = tun_net_fix_features,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = tun_poll_controller,
#endif
};
static const struct net_device_ops tap_netdev_ops = {
@ -480,6 +499,9 @@ static const struct net_device_ops tap_netdev_ops = {
.ndo_set_multicast_list = tun_net_mclist,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = tun_poll_controller,
#endif
};
/* Initialize net device. */

10
drivers/net/usb/Kconfig
View File

@ -385,6 +385,16 @@ config USB_NET_CX82310_ETH
router with USB ethernet port. This driver is for routers only,
it will not work with ADSL modems (use cxacru driver instead).
config USB_NET_KALMIA
tristate "Samsung Kalmia based LTE USB modem"
depends on USB_USBNET
help
Choose this option if you have a Samsung Kalmia based USB modem
as Samsung GT-B3730.
To compile this driver as a module, choose M here: the
module will be called kalmia.
config USB_HSO
tristate "Option USB High Speed Mobile Devices"
depends on USB && RFKILL

1
drivers/net/usb/Makefile
View File

@ -23,6 +23,7 @@ obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o
obj-$(CONFIG_USB_USBNET) += usbnet.o
obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o
obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o
obj-$(CONFIG_USB_NET_KALMIA) += kalmia.o
obj-$(CONFIG_USB_IPHETH) += ipheth.o
obj-$(CONFIG_USB_SIERRA_NET) += sierra_net.o
obj-$(CONFIG_USB_NET_CX82310_ETH) += cx82310_eth.o

384
drivers/net/usb/kalmia.c Normal file
View File

@ -0,0 +1,384 @@
/*
* USB network interface driver for Samsung Kalmia based LTE USB modem like the
* Samsung GT-B3730 and GT-B3710.
*
* Copyright (C) 2011 Marius Bjoernstad Kotsbak <marius@kotsbak.com>
*
* Sponsored by Quicklink Video Distribution Services Ltd.
*
* Based on the cdc_eem module.
*
* 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.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ctype.h>
#include <linux/ethtool.h>
#include <linux/workqueue.h>
#include <linux/mii.h>
#include <linux/usb.h>
#include <linux/crc32.h>
#include <linux/usb/cdc.h>
#include <linux/usb/usbnet.h>
#include <linux/gfp.h>
/*
* The Samsung Kalmia based LTE USB modems have a CDC ACM port for modem control
* handled by the "option" module and an ethernet data port handled by this
* module.
*
* The stick must first be switched into modem mode by usb_modeswitch
* or similar tool. Then the modem gets sent two initialization packets by
* this module, which gives the MAC address of the device. User space can then
* connect the modem using AT commands through the ACM port and then use
* DHCP on the network interface exposed by this module. Network packets are
* sent to and from the modem in a proprietary format discovered after watching
* the behavior of the windows driver for the modem.
*
* More information about the use of the modem is available in usb_modeswitch
* forum and the project page:
*
* http://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?t=465
* https://github.com/mkotsbak/Samsung-GT-B3730-linux-driver
*/
/* #define DEBUG */
/* #define VERBOSE */
#define KALMIA_HEADER_LENGTH 6
#define KALMIA_ALIGN_SIZE 4
#define KALMIA_USB_TIMEOUT 10000
/*-------------------------------------------------------------------------*/
static int
kalmia_send_init_packet(struct usbnet *dev, u8 *init_msg, u8 init_msg_len,
u8 *buffer, u8 expected_len)
{
int act_len;
int status;
netdev_dbg(dev->net, "Sending init packet");
status = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 0x02),
init_msg, init_msg_len, &act_len, KALMIA_USB_TIMEOUT);
if (status != 0) {
netdev_err(dev->net,
"Error sending init packet. Status %i, length %i\n",
status, act_len);
return status;
}
else if (act_len != init_msg_len) {
netdev_err(dev->net,
"Did not send all of init packet. Bytes sent: %i",
act_len);
}
else {
netdev_dbg(dev->net, "Successfully sent init packet.");
}
status = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, 0x81),
buffer, expected_len, &act_len, KALMIA_USB_TIMEOUT);
if (status != 0)
netdev_err(dev->net,
"Error receiving init result. Status %i, length %i\n",
status, act_len);
else if (act_len != expected_len)
netdev_err(dev->net, "Unexpected init result length: %i\n",
act_len);
return status;
}
static int
kalmia_init_and_get_ethernet_addr(struct usbnet *dev, u8 *ethernet_addr)
{
char init_msg_1[] =
{ 0x57, 0x50, 0x04, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
0x00, 0x00 };
char init_msg_2[] =
{ 0x57, 0x50, 0x04, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0xf4,
0x00, 0x00 };
char receive_buf[28];
int status;
status = kalmia_send_init_packet(dev, init_msg_1, sizeof(init_msg_1)
/ sizeof(init_msg_1[0]), receive_buf, 24);
if (status != 0)
return status;
status = kalmia_send_init_packet(dev, init_msg_2, sizeof(init_msg_2)
/ sizeof(init_msg_2[0]), receive_buf, 28);
if (status != 0)
return status;
memcpy(ethernet_addr, receive_buf + 10, ETH_ALEN);
return status;
}
static int
kalmia_bind(struct usbnet *dev, struct usb_interface *intf)
{
u8 status;
u8 ethernet_addr[ETH_ALEN];
/* Don't bind to AT command interface */
if (intf->cur_altsetting->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC)
return -EINVAL;
dev->in = usb_rcvbulkpipe(dev->udev, 0x81 & USB_ENDPOINT_NUMBER_MASK);
dev->out = usb_sndbulkpipe(dev->udev, 0x02 & USB_ENDPOINT_NUMBER_MASK);
dev->status = NULL;
dev->net->hard_header_len += KALMIA_HEADER_LENGTH;
dev->hard_mtu = 1400;
dev->rx_urb_size = dev->hard_mtu * 10; // Found as optimal after testing
status = kalmia_init_and_get_ethernet_addr(dev, ethernet_addr);
if (status < 0) {
usb_set_intfdata(intf, NULL);
usb_driver_release_interface(driver_of(intf), intf);
return status;
}
memcpy(dev->net->dev_addr, ethernet_addr, ETH_ALEN);
memcpy(dev->net->perm_addr, ethernet_addr, ETH_ALEN);
return status;
}
static struct sk_buff *
kalmia_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
{
struct sk_buff *skb2 = NULL;
u16 content_len;
unsigned char *header_start;
unsigned char ether_type_1, ether_type_2;
u8 remainder, padlen = 0;
if (!skb_cloned(skb)) {
int headroom = skb_headroom(skb);
int tailroom = skb_tailroom(skb);
if ((tailroom >= KALMIA_ALIGN_SIZE) && (headroom
>= KALMIA_HEADER_LENGTH))
goto done;
if ((headroom + tailroom) > (KALMIA_HEADER_LENGTH
+ KALMIA_ALIGN_SIZE)) {
skb->data = memmove(skb->head + KALMIA_HEADER_LENGTH,
skb->data, skb->len);
skb_set_tail_pointer(skb, skb->len);
goto done;
}
}
skb2 = skb_copy_expand(skb, KALMIA_HEADER_LENGTH,
KALMIA_ALIGN_SIZE, flags);
if (!skb2)
return NULL;
dev_kfree_skb_any(skb);
skb = skb2;
done: header_start = skb_push(skb, KALMIA_HEADER_LENGTH);
ether_type_1 = header_start[KALMIA_HEADER_LENGTH + 12];
ether_type_2 = header_start[KALMIA_HEADER_LENGTH + 13];
netdev_dbg(dev->net, "Sending etherType: %02x%02x", ether_type_1,
ether_type_2);
/* According to empiric data for data packages */
header_start[0] = 0x57;
header_start[1] = 0x44;
content_len = skb->len - KALMIA_HEADER_LENGTH;
header_start[2] = (content_len & 0xff); /* low byte */
header_start[3] = (content_len >> 8); /* high byte */
header_start[4] = ether_type_1;
header_start[5] = ether_type_2;
/* Align to 4 bytes by padding with zeros */
remainder = skb->len % KALMIA_ALIGN_SIZE;
if (remainder > 0) {
padlen = KALMIA_ALIGN_SIZE - remainder;
memset(skb_put(skb, padlen), 0, padlen);
}
netdev_dbg(
dev->net,
"Sending package with length %i and padding %i. Header: %02x:%02x:%02x:%02x:%02x:%02x.",
content_len, padlen, header_start[0], header_start[1],
header_start[2], header_start[3], header_start[4],
header_start[5]);
return skb;
}
static int
kalmia_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
/*
* Our task here is to strip off framing, leaving skb with one
* data frame for the usbnet framework code to process.
*/
const u8 HEADER_END_OF_USB_PACKET[] =
{ 0x57, 0x5a, 0x00, 0x00, 0x08, 0x00 };
const u8 EXPECTED_UNKNOWN_HEADER_1[] =
{ 0x57, 0x43, 0x1e, 0x00, 0x15, 0x02 };
const u8 EXPECTED_UNKNOWN_HEADER_2[] =
{ 0x57, 0x50, 0x0e, 0x00, 0x00, 0x00 };
u8 i = 0;
/* incomplete header? */
if (skb->len < KALMIA_HEADER_LENGTH)
return 0;
do {
struct sk_buff *skb2 = NULL;
u8 *header_start;
u16 usb_packet_length, ether_packet_length;
int is_last;
header_start = skb->data;
if (unlikely(header_start[0] != 0x57 || header_start[1] != 0x44)) {
if (!memcmp(header_start, EXPECTED_UNKNOWN_HEADER_1,
sizeof(EXPECTED_UNKNOWN_HEADER_1)) || !memcmp(
header_start, EXPECTED_UNKNOWN_HEADER_2,
sizeof(EXPECTED_UNKNOWN_HEADER_2))) {
netdev_dbg(
dev->net,
"Received expected unknown frame header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
header_start[0], header_start[1],
header_start[2], header_start[3],
header_start[4], header_start[5],
skb->len - KALMIA_HEADER_LENGTH);
}
else {
netdev_err(
dev->net,
"Received unknown frame header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
header_start[0], header_start[1],
header_start[2], header_start[3],
header_start[4], header_start[5],
skb->len - KALMIA_HEADER_LENGTH);
return 0;
}
}
else
netdev_dbg(
dev->net,
"Received header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
header_start[0], header_start[1], header_start[2],
header_start[3], header_start[4], header_start[5],
skb->len - KALMIA_HEADER_LENGTH);
/* subtract start header and end header */
usb_packet_length = skb->len - (2 * KALMIA_HEADER_LENGTH);
ether_packet_length = header_start[2] + (header_start[3] << 8);
skb_pull(skb, KALMIA_HEADER_LENGTH);
/* Some small packets misses end marker */
if (usb_packet_length < ether_packet_length) {
ether_packet_length = usb_packet_length
+ KALMIA_HEADER_LENGTH;
is_last = true;
}
else {
netdev_dbg(dev->net, "Correct package length #%i", i
+ 1);
is_last = (memcmp(skb->data + ether_packet_length,
HEADER_END_OF_USB_PACKET,
sizeof(HEADER_END_OF_USB_PACKET)) == 0);
if (!is_last) {
header_start = skb->data + ether_packet_length;
netdev_dbg(
dev->net,
"End header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
header_start[0], header_start[1],
header_start[2], header_start[3],
header_start[4], header_start[5],
skb->len - KALMIA_HEADER_LENGTH);
}
}
if (is_last) {
skb2 = skb;
}
else {
skb2 = skb_clone(skb, GFP_ATOMIC);
if (unlikely(!skb2))
return 0;
}
skb_trim(skb2, ether_packet_length);
if (is_last) {
return 1;
}
else {
usbnet_skb_return(dev, skb2);
skb_pull(skb, ether_packet_length);
}
i++;
}
while (skb->len);
return 1;
}
static const struct driver_info kalmia_info = {
.description = "Samsung Kalmia LTE USB dongle",
.flags = FLAG_WWAN,
.bind = kalmia_bind,
.rx_fixup = kalmia_rx_fixup,
.tx_fixup = kalmia_tx_fixup
};
/*-------------------------------------------------------------------------*/
static const struct usb_device_id products[] = {
/* The unswitched USB ID, to get the module auto loaded: */
{ USB_DEVICE(0x04e8, 0x689a) },
/* The stick swithed into modem (by e.g. usb_modeswitch): */
{ USB_DEVICE(0x04e8, 0x6889),
.driver_info = (unsigned long) &kalmia_info, },
{ /* EMPTY == end of list */} };
MODULE_DEVICE_TABLE( usb, products);
static struct usb_driver kalmia_driver = {
.name = "kalmia",
.id_table = products,
.probe = usbnet_probe,
.disconnect = usbnet_disconnect,
.suspend = usbnet_suspend,
.resume = usbnet_resume
};
static int __init kalmia_init(void)
{
return usb_register(&kalmia_driver);
}
module_init( kalmia_init);
static void __exit kalmia_exit(void)
{
usb_deregister(&kalmia_driver);
}
module_exit( kalmia_exit);
MODULE_AUTHOR("Marius Bjoernstad Kotsbak <marius@kotsbak.com>");
MODULE_DESCRIPTION("Samsung Kalmia USB network driver");
MODULE_LICENSE("GPL");

4
drivers/net/wan/farsync.c
View File

@ -2203,8 +2203,10 @@ fst_open(struct net_device *dev)
if (port->mode != FST_RAW) {
err = hdlc_open(dev);
if (err)
if (err) {
module_put(THIS_MODULE);
return err;
}
}
fst_openport(port);

2
drivers/net/wireless/mwifiex/cfg80211.c
View File

@ -1288,6 +1288,8 @@ int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
*(unsigned long *) wdev_priv = (unsigned long) priv;
set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
ret = wiphy_register(wdev->wiphy);
if (ret < 0) {
dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",

4
drivers/net/wireless/mwl8k.c
View File

@ -2474,6 +2474,7 @@ struct mwl8k_cmd_set_hw_spec {
* faster client.
*/
#define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
#define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
#define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
#define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
#define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
@ -2510,7 +2511,8 @@ static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON |
MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY);
MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY |
MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR);
cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);

6
include/net/netfilter/nf_conntrack.h
View File

@ -307,6 +307,12 @@ static inline int nf_ct_is_untracked(const struct nf_conn *ct)
return test_bit(IPS_UNTRACKED_BIT, &ct->status);
}
/* Packet is received from loopback */
static inline bool nf_is_loopback_packet(const struct sk_buff *skb)
{
return skb->dev && skb->skb_iif && skb->dev->flags & IFF_LOOPBACK;
}
extern int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp);
extern unsigned int nf_conntrack_htable_size;
extern unsigned int nf_conntrack_max;

2
net/8021q/vlan.c
View File

@ -205,7 +205,7 @@ int register_vlan_dev(struct net_device *dev)
grp->nr_vlans++;
if (ngrp) {
if (ops->ndo_vlan_rx_register)
if (ops->ndo_vlan_rx_register && (real_dev->features & NETIF_F_HW_VLAN_RX))
ops->ndo_vlan_rx_register(real_dev, ngrp);
rcu_assign_pointer(real_dev->vlgrp, ngrp);
}

18
net/bluetooth/hci_event.c
View File

@ -477,14 +477,16 @@ static void hci_setup_event_mask(struct hci_dev *hdev)
* command otherwise */
u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 };
/* Events for 1.2 and newer controllers */
if (hdev->lmp_ver > 1) {
events[4] |= 0x01; /* Flow Specification Complete */
events[4] |= 0x02; /* Inquiry Result with RSSI */
events[4] |= 0x04; /* Read Remote Extended Features Complete */
events[5] |= 0x08; /* Synchronous Connection Complete */
events[5] |= 0x10; /* Synchronous Connection Changed */
}
/* CSR 1.1 dongles does not accept any bitfield so don't try to set
* any event mask for pre 1.2 devices */
if (hdev->lmp_ver <= 1)
return;
events[4] |= 0x01; /* Flow Specification Complete */
events[4] |= 0x02; /* Inquiry Result with RSSI */
events[4] |= 0x04; /* Read Remote Extended Features Complete */
events[5] |= 0x08; /* Synchronous Connection Complete */
events[5] |= 0x10; /* Synchronous Connection Changed */
if (hdev->features[3] & LMP_RSSI_INQ)
events[4] |= 0x04; /* Inquiry Result with RSSI */

1
net/bluetooth/l2cap_sock.c
View File

@ -413,6 +413,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
break;
}
memset(&cinfo, 0, sizeof(cinfo));
cinfo.hci_handle = chan->conn->hcon->handle;
memcpy(cinfo.dev_class, chan->conn->hcon->dev_class, 3);

1
net/bluetooth/rfcomm/sock.c
View File

@ -788,6 +788,7 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
l2cap_sk = rfcomm_pi(sk)->dlc->session->sock->sk;
memset(&cinfo, 0, sizeof(cinfo));
cinfo.hci_handle = conn->hcon->handle;
memcpy(cinfo.dev_class, conn->hcon->dev_class, 3);

13
net/bluetooth/sco.c
View File

@ -369,6 +369,15 @@ static void __sco_sock_close(struct sock *sk)
case BT_CONNECTED:
case BT_CONFIG:
if (sco_pi(sk)->conn) {
sk->sk_state = BT_DISCONN;
sco_sock_set_timer(sk, SCO_DISCONN_TIMEOUT);
hci_conn_put(sco_pi(sk)->conn->hcon);
sco_pi(sk)->conn->hcon = NULL;
} else
sco_chan_del(sk, ECONNRESET);
break;
case BT_CONNECT:
case BT_DISCONN:
sco_chan_del(sk, ECONNRESET);
@ -819,7 +828,9 @@ static void sco_chan_del(struct sock *sk, int err)
conn->sk = NULL;
sco_pi(sk)->conn = NULL;
sco_conn_unlock(conn);
hci_conn_put(conn->hcon);
if (conn->hcon)
hci_conn_put(conn->hcon);
}
sk->sk_state = BT_CLOSED;

1
net/bridge/br_device.c
View File

@ -243,6 +243,7 @@ int br_netpoll_enable(struct net_bridge_port *p)
goto out;
np->dev = p->dev;
strlcpy(np->dev_name, p->dev->name, IFNAMSIZ);
err = __netpoll_setup(np);
if (err) {

4
net/bridge/br_multicast.c
View File

@ -1424,7 +1424,7 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
switch (ih->type) {
case IGMP_HOST_MEMBERSHIP_REPORT:
case IGMPV2_HOST_MEMBERSHIP_REPORT:
BR_INPUT_SKB_CB(skb2)->mrouters_only = 1;
BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
err = br_ip4_multicast_add_group(br, port, ih->group);
break;
case IGMPV3_HOST_MEMBERSHIP_REPORT:
@ -1543,7 +1543,7 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
goto out;
}
mld = (struct mld_msg *)skb_transport_header(skb2);
BR_INPUT_SKB_CB(skb2)->mrouters_only = 1;
BR_INPUT_SKB_CB(skb)->mrouters_only = 1;
err = br_ip6_multicast_add_group(br, port, &mld->mld_mca);
break;
}

2
net/caif/cfmuxl.c
View File

@ -255,7 +255,7 @@ static void cfmuxl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
if (cfsrvl_phyid_match(layer, phyid) && layer->ctrlcmd) {
if ((ctrl == _CAIF_CTRLCMD_PHYIF_FLOW_OFF_IND ||
if ((ctrl == _CAIF_CTRLCMD_PHYIF_DOWN_IND ||
ctrl == CAIF_CTRLCMD_REMOTE_SHUTDOWN_IND) &&
layer->id != 0) {

3
net/ieee802154/nl-phy.c
View File

@ -44,7 +44,7 @@ static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 pid,
pr_debug("%s\n", __func__);
if (!buf)
goto out;
return -EMSGSIZE;
hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
IEEE802154_LIST_PHY);
@ -65,6 +65,7 @@ static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 pid,
pages * sizeof(uint32_t), buf);
mutex_unlock(&phy->pib_lock);
kfree(buf);
return genlmsg_end(msg, hdr);
nla_put_failure:

1
net/ipv4/af_inet.c
View File

@ -676,6 +676,7 @@ int inet_accept(struct socket *sock, struct socket *newsock, int flags)
lock_sock(sk2);
sock_rps_record_flow(sk2);
WARN_ON(!((1 << sk2->sk_state) &
(TCPF_ESTABLISHED | TCPF_CLOSE_WAIT | TCPF_CLOSE)));

14
net/ipv4/inet_diag.c
View File

@ -437,7 +437,7 @@ static int valid_cc(const void *bc, int len, int cc)
return 0;
if (cc == len)
return 1;
if (op->yes < 4)
if (op->yes < 4 || op->yes & 3)
return 0;
len -= op->yes;
bc += op->yes;
@ -447,11 +447,11 @@ static int valid_cc(const void *bc, int len, int cc)
static int inet_diag_bc_audit(const void *bytecode, int bytecode_len)
{
const unsigned char *bc = bytecode;
const void *bc = bytecode;
int len = bytecode_len;
while (len > 0) {
struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)bc;
const struct inet_diag_bc_op *op = bc;
//printk("BC: %d %d %d {%d} / %d\n", op->code, op->yes, op->no, op[1].no, len);
switch (op->code) {
@ -462,22 +462,20 @@ static int inet_diag_bc_audit(const void *bytecode, int bytecode_len)
case INET_DIAG_BC_S_LE:
case INET_DIAG_BC_D_GE:
case INET_DIAG_BC_D_LE:
if (op->yes < 4 || op->yes > len + 4)
return -EINVAL;
case INET_DIAG_BC_JMP:
if (op->no < 4 || op->no > len + 4)
if (op->no < 4 || op->no > len + 4 || op->no & 3)
return -EINVAL;
if (op->no < len &&
!valid_cc(bytecode, bytecode_len, len - op->no))
return -EINVAL;
break;
case INET_DIAG_BC_NOP:
if (op->yes < 4 || op->yes > len + 4)
return -EINVAL;
break;
default:
return -EINVAL;
}
if (op->yes < 4 || op->yes > len + 4 || op->yes & 3)
return -EINVAL;
bc += op->yes;
len -= op->yes;
}

3
net/ipv4/netfilter/ip_queue.c
View File

@ -203,7 +203,8 @@ ipq_build_packet_message(struct nf_queue_entry *entry, int *errp)
else
pmsg->outdev_name[0] = '\0';
if (entry->indev && entry->skb->dev) {
if (entry->indev && entry->skb->dev &&
entry->skb->mac_header != entry->skb->network_header) {
pmsg->hw_type = entry->skb->dev->type;
pmsg->hw_addrlen = dev_parse_header(entry->skb,
pmsg->hw_addr);

2
net/ipv4/netfilter/ip_tables.c
View File

@ -566,7 +566,7 @@ check_entry(const struct ipt_entry *e, const char *name)
const struct xt_entry_target *t;
if (!ip_checkentry(&e->ip)) {
duprintf("ip check failed %p %s.\n", e, par->match->name);
duprintf("ip check failed %p %s.\n", e, name);
return -EINVAL;
}

7
net/ipv4/netfilter/ipt_ecn.c
View File

@ -25,7 +25,8 @@ MODULE_LICENSE("GPL");
static inline bool match_ip(const struct sk_buff *skb,
const struct ipt_ecn_info *einfo)
{
return (ip_hdr(skb)->tos & IPT_ECN_IP_MASK) == einfo->ip_ect;
return ((ip_hdr(skb)->tos & IPT_ECN_IP_MASK) == einfo->ip_ect) ^
!!(einfo->invert & IPT_ECN_OP_MATCH_IP);
}
static inline bool match_tcp(const struct sk_buff *skb,
@ -76,8 +77,6 @@ static bool ecn_mt(const struct sk_buff *skb, struct xt_action_param *par)
return false;
if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)) {
if (ip_hdr(skb)->protocol != IPPROTO_TCP)
return false;
if (!match_tcp(skb, info, &par->hotdrop))
return false;
}
@ -97,7 +96,7 @@ static int ecn_mt_check(const struct xt_mtchk_param *par)
return -EINVAL;
if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR) &&
ip->proto != IPPROTO_TCP) {
(ip->proto != IPPROTO_TCP || ip->invflags & IPT_INV_PROTO)) {
pr_info("cannot match TCP bits in rule for non-tcp packets\n");
return -EINVAL;
}

4
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
View File

@ -121,7 +121,9 @@ static unsigned int ipv4_confirm(unsigned int hooknum,
return ret;
}
if (test_bit(IPS_SEQ_ADJUST_BIT, &ct->status)) {
/* adjust seqs for loopback traffic only in outgoing direction */
if (test_bit(IPS_SEQ_ADJUST_BIT, &ct->status) &&
!nf_is_loopback_packet(skb)) {
typeof(nf_nat_seq_adjust_hook) seq_adjust;
seq_adjust = rcu_dereference(nf_nat_seq_adjust_hook);

1
net/ipv4/ping.c
View File

@ -41,7 +41,6 @@
#include <linux/proc_fs.h>
#include <net/sock.h>
#include <net/ping.h>
#include <net/icmp.h>
#include <net/udp.h>
#include <net/route.h>
#include <net/inet_common.h>

4
net/ipv4/route.c
View File

@ -1902,9 +1902,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
hash = rt_hash(daddr, saddr, dev->ifindex, rt_genid(dev_net(dev)));
rth = rt_intern_hash(hash, rth, skb, dev->ifindex);
err = 0;
if (IS_ERR(rth))
err = PTR_ERR(rth);
return IS_ERR(rth) ? PTR_ERR(rth) : 0;
e_nobufs:
return -ENOBUFS;

1
net/ipv4/tcp_ipv4.c
View File

@ -1589,6 +1589,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
goto discard;
if (nsk != sk) {
sock_rps_save_rxhash(nsk, skb->rxhash);
if (tcp_child_process(sk, nsk, skb)) {
rsk = nsk;
goto reset;

3
net/ipv6/netfilter/ip6_queue.c
View File

@ -204,7 +204,8 @@ ipq_build_packet_message(struct nf_queue_entry *entry, int *errp)
else
pmsg->outdev_name[0] = '\0';
if (entry->indev && entry->skb->dev) {
if (entry->indev && entry->skb->dev &&
entry->skb->mac_header != entry->skb->network_header) {
pmsg->hw_type = entry->skb->dev->type;
pmsg->hw_addrlen = dev_parse_header(entry->skb, pmsg->hw_addr);
}

1
net/ipv6/tcp_ipv6.c
View File

@ -1644,6 +1644,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
* the new socket..
*/
if(nsk != sk) {
sock_rps_save_rxhash(nsk, skb->rxhash);
if (tcp_child_process(sk, nsk, skb))
goto reset;
if (opt_skb)

10
net/netfilter/ipvs/ip_vs_conn.c
View File

@ -776,8 +776,16 @@ static void ip_vs_conn_expire(unsigned long data)
if (cp->control)
ip_vs_control_del(cp);
if (cp->flags & IP_VS_CONN_F_NFCT)
if (cp->flags & IP_VS_CONN_F_NFCT) {
ip_vs_conn_drop_conntrack(cp);
/* Do not access conntracks during subsys cleanup
* because nf_conntrack_find_get can not be used after
* conntrack cleanup for the net.
*/
smp_rmb();
if (ipvs->enable)
ip_vs_conn_drop_conntrack(cp);
}
ip_vs_pe_put(cp->pe);
kfree(cp->pe_data);

1
net/netfilter/ipvs/ip_vs_core.c
View File

@ -1945,6 +1945,7 @@ static void __net_exit __ip_vs_dev_cleanup(struct net *net)
{
EnterFunction(2);
net_ipvs(net)->enable = 0; /* Disable packet reception */
smp_wmb();
__ip_vs_sync_cleanup(net);
LeaveFunction(2);
}

3
net/netfilter/nfnetlink_log.c
View File

@ -456,7 +456,8 @@ __build_packet_message(struct nfulnl_instance *inst,
if (skb->mark)
NLA_PUT_BE32(inst->skb, NFULA_MARK, htonl(skb->mark));
if (indev && skb->dev) {
if (indev && skb->dev &&
skb->mac_header != skb->network_header) {
struct nfulnl_msg_packet_hw phw;
int len = dev_parse_header(skb, phw.hw_addr);
if (len > 0) {

3
net/netfilter/nfnetlink_queue.c
View File

@ -335,7 +335,8 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
if (entskb->mark)
NLA_PUT_BE32(skb, NFQA_MARK, htonl(entskb->mark));
if (indev && entskb->dev) {
if (indev && entskb->dev &&
entskb->mac_header != entskb->network_header) {
struct nfqnl_msg_packet_hw phw;
int len = dev_parse_header(entskb, phw.hw_addr);
if (len) {