Merge tag 'linux-can-next-for-3.20-20150128' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2015-28-01
this is a pull request of 12 patches for net-next/master.
There are 3 patches by Ahmed S. Darwish, which update the kvaser_usb
driver and add support for the USBcan-II based adapters. Stéphane
Grosjean contributes 7 patches for the peak_usb driver, which add
support for the CANFD USB adapters. I contribute 2 patches which clean
up the peak_usb driver structure a bit.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/Documentation/devicetree/bindings/net/nfc/st21nfca.txt b/Documentation/devicetree/bindings/net/nfc/st21nfca.txt
index e4faa2e..7bb2e21 100644
--- a/Documentation/devicetree/bindings/net/nfc/st21nfca.txt
+++ b/Documentation/devicetree/bindings/net/nfc/st21nfca.txt
@@ -1,7 +1,7 @@
* STMicroelectronics SAS. ST21NFCA NFC Controller
Required properties:
-- compatible: Should be "st,st21nfca_i2c".
+- compatible: Should be "st,st21nfca-i2c".
- clock-frequency: I²C work frequency.
- reg: address on the bus
- interrupt-parent: phandle for the interrupt gpio controller
@@ -11,6 +11,10 @@
Optional SoC Specific Properties:
- pinctrl-names: Contains only one value - "default".
- pintctrl-0: Specifies the pin control groups used for this controller.
+- ese-present: Specifies that an ese is physically connected to the nfc
+controller.
+- uicc-present: Specifies that the uicc swp signal can be physically
+connected to the nfc controller.
Example (for ARM-based BeagleBoard xM with ST21NFCA on I2C2):
@@ -20,7 +24,7 @@
st21nfca: st21nfca@1 {
- compatible = "st,st21nfca_i2c";
+ compatible = "st,st21nfca-i2c";
reg = <0x01>;
clock-frequency = <400000>;
@@ -29,5 +33,8 @@
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
enable-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+
+ ese-present;
+ uicc-present;
};
};
diff --git a/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt b/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt
index 9005608..bb23707 100644
--- a/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt
+++ b/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt
@@ -1,7 +1,7 @@
* STMicroelectronics SAS. ST21NFCB NFC Controller
Required properties:
-- compatible: Should be "st,st21nfcb_i2c".
+- compatible: Should be "st,st21nfcb-i2c".
- clock-frequency: I²C work frequency.
- reg: address on the bus
- interrupt-parent: phandle for the interrupt gpio controller
@@ -20,7 +20,7 @@
st21nfcb: st21nfcb@8 {
- compatible = "st,st21nfcb_i2c";
+ compatible = "st,st21nfcb-i2c";
reg = <0x08>;
clock-frequency = <400000>;
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 93ff846..43df788 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -764,7 +764,7 @@
u32 *tx_queues, *rx_queues;
unsigned short mode, poll_mode;
- if (!np || !of_device_is_available(np))
+ if (!np)
return -ENODEV;
if (of_device_is_compatible(np, "fsl,etsec2")) {
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index 525214e..c02b81b 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -567,10 +567,11 @@
writel_relaxed(DEF_INT_MASK, priv->base + PPE_RINT);
if (unlikely(ists & DEF_INT_ERR)) {
- if (ists & (RCV_NOBUF | RCV_DROP))
+ if (ists & (RCV_NOBUF | RCV_DROP)) {
stats->rx_errors++;
stats->rx_dropped++;
netdev_err(ndev, "rx drop\n");
+ }
if (ists & TX_DROP) {
stats->tx_dropped++;
netdev_err(ndev, "tx drop\n");
diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c
index 963a4a5..f454dc6 100644
--- a/drivers/nfc/microread/microread.c
+++ b/drivers/nfc/microread/microread.c
@@ -557,10 +557,11 @@
pr_err("Failed to handle discovered target err=%d\n", r);
}
-static int microread_event_received(struct nfc_hci_dev *hdev, u8 gate,
+static int microread_event_received(struct nfc_hci_dev *hdev, u8 pipe,
u8 event, struct sk_buff *skb)
{
int r;
+ u8 gate = hdev->pipes[pipe].gate;
u8 mode;
pr_info("Microread received event 0x%x to gate 0x%x\n", event, gate);
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index fc02e8d..cdde745 100644
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -24,11 +24,13 @@
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/of_irq.h>
+#include <linux/acpi.h>
#include <linux/miscdevice.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/nfc.h>
#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
#include <linux/platform_data/pn544.h>
#include <asm/unaligned.h>
@@ -41,6 +43,11 @@
#define PN544_I2C_FRAME_HEADROOM 1
#define PN544_I2C_FRAME_TAILROOM 2
+/* GPIO names */
+#define PN544_GPIO_NAME_IRQ "pn544_irq"
+#define PN544_GPIO_NAME_FW "pn544_fw"
+#define PN544_GPIO_NAME_EN "pn544_en"
+
/* framing in HCI mode */
#define PN544_HCI_I2C_LLC_LEN 1
#define PN544_HCI_I2C_LLC_CRC 2
@@ -58,6 +65,13 @@
MODULE_DEVICE_TABLE(i2c, pn544_hci_i2c_id_table);
+static const struct acpi_device_id pn544_hci_i2c_acpi_match[] = {
+ {"NXP5440", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(acpi, pn544_hci_i2c_acpi_match);
+
#define PN544_HCI_I2C_DRIVER_NAME "pn544_hci_i2c"
/*
@@ -195,18 +209,19 @@
nfc_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");
/* Disable fw download */
- gpio_set_value(phy->gpio_fw, 0);
+ gpio_set_value_cansleep(phy->gpio_fw, 0);
for (polarity = 0; polarity < 2; polarity++) {
phy->en_polarity = polarity;
retry = 3;
while (retry--) {
/* power off */
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en,
+ !phy->en_polarity);
usleep_range(10000, 15000);
/* power on */
- gpio_set_value(phy->gpio_en, phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);
usleep_range(10000, 15000);
/* send reset */
@@ -225,13 +240,14 @@
"Could not detect nfc_en polarity, fallback to active high\n");
out:
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);
}
static void pn544_hci_i2c_enable_mode(struct pn544_i2c_phy *phy, int run_mode)
{
- gpio_set_value(phy->gpio_fw, run_mode == PN544_FW_MODE ? 1 : 0);
- gpio_set_value(phy->gpio_en, phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_fw,
+ run_mode == PN544_FW_MODE ? 1 : 0);
+ gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);
usleep_range(10000, 15000);
phy->run_mode = run_mode;
@@ -254,14 +270,14 @@
{
struct pn544_i2c_phy *phy = phy_id;
- gpio_set_value(phy->gpio_fw, 0);
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_fw, 0);
+ gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);
usleep_range(10000, 15000);
- gpio_set_value(phy->gpio_en, phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);
usleep_range(10000, 15000);
- gpio_set_value(phy->gpio_en, !phy->en_polarity);
+ gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);
usleep_range(10000, 15000);
phy->powered = 0;
@@ -859,6 +875,90 @@
}
}
+static int pn544_hci_i2c_acpi_request_resources(struct i2c_client *client)
+{
+ struct pn544_i2c_phy *phy = i2c_get_clientdata(client);
+ const struct acpi_device_id *id;
+ struct gpio_desc *gpiod_en, *gpiod_irq, *gpiod_fw;
+ struct device *dev;
+ int ret;
+
+ if (!client)
+ return -EINVAL;
+
+ dev = &client->dev;
+
+ /* Match the struct device against a given list of ACPI IDs */
+ id = acpi_match_device(dev->driver->acpi_match_table, dev);
+
+ if (!id)
+ return -ENODEV;
+
+ /* Get EN GPIO from ACPI */
+ gpiod_en = devm_gpiod_get_index(dev, PN544_GPIO_NAME_EN, 1);
+ if (IS_ERR(gpiod_en)) {
+ nfc_err(dev,
+ "Unable to get EN GPIO\n");
+ return -ENODEV;
+ }
+
+ phy->gpio_en = desc_to_gpio(gpiod_en);
+
+ /* Configuration EN GPIO */
+ ret = gpiod_direction_output(gpiod_en, 0);
+ if (ret) {
+ nfc_err(dev, "Fail EN pin direction\n");
+ return ret;
+ }
+
+ /* Get FW GPIO from ACPI */
+ gpiod_fw = devm_gpiod_get_index(dev, PN544_GPIO_NAME_FW, 2);
+ if (IS_ERR(gpiod_fw)) {
+ nfc_err(dev,
+ "Unable to get FW GPIO\n");
+ return -ENODEV;
+ }
+
+ phy->gpio_fw = desc_to_gpio(gpiod_fw);
+
+ /* Configuration FW GPIO */
+ ret = gpiod_direction_output(gpiod_fw, 0);
+ if (ret) {
+ nfc_err(dev, "Fail FW pin direction\n");
+ return ret;
+ }
+
+ /* Get IRQ GPIO */
+ gpiod_irq = devm_gpiod_get_index(dev, PN544_GPIO_NAME_IRQ, 0);
+ if (IS_ERR(gpiod_irq)) {
+ nfc_err(dev,
+ "Unable to get IRQ GPIO\n");
+ return -ENODEV;
+ }
+
+ phy->gpio_irq = desc_to_gpio(gpiod_irq);
+
+ /* Configure IRQ GPIO */
+ ret = gpiod_direction_input(gpiod_irq);
+ if (ret) {
+ nfc_err(dev, "Fail IRQ pin direction\n");
+ return ret;
+ }
+
+ /* Map the pin to an IRQ */
+ ret = gpiod_to_irq(gpiod_irq);
+ if (ret < 0) {
+ nfc_err(dev, "Fail pin IRQ mapping\n");
+ return ret;
+ }
+
+ nfc_info(dev, "GPIO resource, no:%d irq:%d\n",
+ desc_to_gpio(gpiod_irq), ret);
+ client->irq = ret;
+
+ return 0;
+}
+
#ifdef CONFIG_OF
static int pn544_hci_i2c_of_request_resources(struct i2c_client *client)
@@ -884,7 +984,7 @@
phy->gpio_en = ret;
/* Configuration of EN GPIO */
- ret = gpio_request(phy->gpio_en, "pn544_en");
+ ret = gpio_request(phy->gpio_en, PN544_GPIO_NAME_EN);
if (ret) {
nfc_err(&client->dev, "Fail EN pin\n");
goto err_dt;
@@ -906,7 +1006,7 @@
phy->gpio_fw = ret;
/* Configuration of FW GPIO */
- ret = gpio_request(phy->gpio_fw, "pn544_fw");
+ ret = gpio_request(phy->gpio_fw, PN544_GPIO_NAME_FW);
if (ret) {
nfc_err(&client->dev, "Fail FW pin\n");
goto err_gpio_en;
@@ -1001,6 +1101,14 @@
phy->gpio_en = pdata->get_gpio(NFC_GPIO_ENABLE);
phy->gpio_fw = pdata->get_gpio(NFC_GPIO_FW_RESET);
phy->gpio_irq = pdata->get_gpio(NFC_GPIO_IRQ);
+ /* Using ACPI */
+ } else if (ACPI_HANDLE(&client->dev)) {
+ r = pn544_hci_i2c_acpi_request_resources(client);
+ if (r) {
+ nfc_err(&client->dev,
+ "Cannot get ACPI data\n");
+ return r;
+ }
} else {
nfc_err(&client->dev, "No platform data\n");
return -EINVAL;
@@ -1080,6 +1188,7 @@
.name = PN544_HCI_I2C_DRIVER_NAME,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(of_pn544_i2c_match),
+ .acpi_match_table = ACPI_PTR(pn544_hci_i2c_acpi_match),
},
.probe = pn544_hci_i2c_probe,
.id_table = pn544_hci_i2c_id_table,
diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 9c8051d..12e819d 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -724,10 +724,11 @@
* <= 0: driver handled the event, skb consumed
* 1: driver does not handle the event, please do standard processing
*/
-static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event,
+static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
struct sk_buff *skb)
{
struct sk_buff *rgb_skb = NULL;
+ u8 gate = hdev->pipes[pipe].gate;
int r;
pr_debug("hci event %d\n", event);
diff --git a/drivers/nfc/st21nfca/Makefile b/drivers/nfc/st21nfca/Makefile
index 7d688f9..97edab4 100644
--- a/drivers/nfc/st21nfca/Makefile
+++ b/drivers/nfc/st21nfca/Makefile
@@ -2,7 +2,7 @@
# Makefile for ST21NFCA HCI based NFC driver
#
-st21nfca_hci-objs = st21nfca.o st21nfca_dep.o
+st21nfca_hci-objs = st21nfca.o st21nfca_dep.o st21nfca_se.o
obj-$(CONFIG_NFC_ST21NFCA) += st21nfca_hci.o
st21nfca_i2c-objs = i2c.o
diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index 0572208..a321439 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -74,6 +74,8 @@
unsigned int gpio_ena;
unsigned int irq_polarity;
+ struct st21nfca_se_status se_status;
+
struct sk_buff *pending_skb;
int current_read_len;
/*
@@ -537,6 +539,11 @@
phy->irq_polarity = irq_get_trigger_type(client->irq);
+ phy->se_status.is_ese_present =
+ of_property_read_bool(pp, "ese-present");
+ phy->se_status.is_uicc_present =
+ of_property_read_bool(pp, "uicc-present");
+
return 0;
}
#else
@@ -571,6 +578,9 @@
}
}
+ phy->se_status.is_ese_present = pdata->is_ese_present;
+ phy->se_status.is_uicc_present = pdata->is_uicc_present;
+
return 0;
}
@@ -591,11 +601,8 @@
phy = devm_kzalloc(&client->dev, sizeof(struct st21nfca_i2c_phy),
GFP_KERNEL);
- if (!phy) {
- nfc_err(&client->dev,
- "Cannot allocate memory for st21nfca i2c phy.\n");
+ if (!phy)
return -ENOMEM;
- }
phy->i2c_dev = client;
phy->pending_skb = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE * 2, GFP_KERNEL);
@@ -641,8 +648,11 @@
}
return st21nfca_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,
- ST21NFCA_FRAME_HEADROOM, ST21NFCA_FRAME_TAILROOM,
- ST21NFCA_HCI_LLC_MAX_PAYLOAD, &phy->hdev);
+ ST21NFCA_FRAME_HEADROOM,
+ ST21NFCA_FRAME_TAILROOM,
+ ST21NFCA_HCI_LLC_MAX_PAYLOAD,
+ &phy->hdev,
+ &phy->se_status);
}
static int st21nfca_hci_i2c_remove(struct i2c_client *client)
@@ -661,6 +671,7 @@
#ifdef CONFIG_OF
static const struct of_device_id of_st21nfca_i2c_match[] = {
+ { .compatible = "st,st21nfca-i2c", },
{ .compatible = "st,st21nfca_i2c", },
{}
};
diff --git a/drivers/nfc/st21nfca/st21nfca.c b/drivers/nfc/st21nfca/st21nfca.c
index f2596c8..24d3d24 100644
--- a/drivers/nfc/st21nfca/st21nfca.c
+++ b/drivers/nfc/st21nfca/st21nfca.c
@@ -23,6 +23,7 @@
#include "st21nfca.h"
#include "st21nfca_dep.h"
+#include "st21nfca_se.h"
#define DRIVER_DESC "HCI NFC driver for ST21NFCA"
@@ -62,7 +63,6 @@
#define ST21NFCA_RF_CARD_F_DATARATE 0x08
#define ST21NFCA_RF_CARD_F_DATARATE_212_424 0x01
-#define ST21NFCA_DEVICE_MGNT_GATE 0x01
#define ST21NFCA_DEVICE_MGNT_PIPE 0x02
#define ST21NFCA_DM_GETINFO 0x13
@@ -78,6 +78,11 @@
#define ST21NFCA_NFC_MODE 0x03 /* NFC_MODE parameter*/
+#define ST21NFCA_EVT_HOT_PLUG 0x03
+#define ST21NFCA_EVT_HOT_PLUG_IS_INHIBITED(x) (x->data[0] & 0x80)
+
+#define ST21NFCA_SE_TO_PIPES 2000
+
static DECLARE_BITMAP(dev_mask, ST21NFCA_NUM_DEVICES);
static struct nfc_hci_gate st21nfca_gates[] = {
@@ -92,6 +97,10 @@
{ST21NFCA_RF_READER_14443_3_A_GATE, NFC_HCI_INVALID_PIPE},
{ST21NFCA_RF_READER_ISO15693_GATE, NFC_HCI_INVALID_PIPE},
{ST21NFCA_RF_CARD_F_GATE, NFC_HCI_INVALID_PIPE},
+
+ /* Secure element pipes are created by secure element host */
+ {ST21NFCA_CONNECTIVITY_GATE, NFC_HCI_DO_NOT_CREATE_PIPE},
+ {ST21NFCA_APDU_READER_GATE, NFC_HCI_DO_NOT_CREATE_PIPE},
};
struct st21nfca_pipe_info {
@@ -118,18 +127,6 @@
NFC_HCI_TERMINAL_HOST_ID, 0
};
- skb_pipe_list = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE, GFP_KERNEL);
- if (!skb_pipe_list) {
- r = -ENOMEM;
- goto free_list;
- }
-
- skb_pipe_info = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE, GFP_KERNEL);
- if (!skb_pipe_info) {
- r = -ENOMEM;
- goto free_info;
- }
-
/* On ST21NFCA device pipes number are dynamics
* A maximum of 16 pipes can be created at the same time
* If pipes are already created, hci_dev_up will fail.
@@ -148,7 +145,8 @@
* Pipe can be closed and need to be open.
*/
r = nfc_hci_connect_gate(hdev, NFC_HCI_HOST_CONTROLLER_ID,
- ST21NFCA_DEVICE_MGNT_GATE, ST21NFCA_DEVICE_MGNT_PIPE);
+ ST21NFCA_DEVICE_MGNT_GATE,
+ ST21NFCA_DEVICE_MGNT_PIPE);
if (r < 0)
goto free_info;
@@ -179,17 +177,28 @@
* - destination gid (1byte)
*/
info = (struct st21nfca_pipe_info *) skb_pipe_info->data;
+ if (info->dst_gate_id == ST21NFCA_APDU_READER_GATE &&
+ info->src_host_id != ST21NFCA_ESE_HOST_ID) {
+ pr_err("Unexpected apdu_reader pipe on host %x\n",
+ info->src_host_id);
+ continue;
+ }
+
for (j = 0; (j < ARRAY_SIZE(st21nfca_gates)) &&
- (st21nfca_gates[j].gate != info->dst_gate_id);
- j++)
+ (st21nfca_gates[j].gate != info->dst_gate_id) ; j++)
;
if (j < ARRAY_SIZE(st21nfca_gates) &&
st21nfca_gates[j].gate == info->dst_gate_id &&
ST21NFCA_DM_IS_PIPE_OPEN(info->pipe_state)) {
st21nfca_gates[j].pipe = pipe_info[2];
+
hdev->gate2pipe[st21nfca_gates[j].gate] =
- st21nfca_gates[j].pipe;
+ st21nfca_gates[j].pipe;
+ hdev->pipes[st21nfca_gates[j].pipe].gate =
+ st21nfca_gates[j].gate;
+ hdev->pipes[st21nfca_gates[j].pipe].dest_host =
+ info->src_host_id;
}
}
@@ -199,7 +208,7 @@
*/
if (skb_pipe_list->len + 3 < ARRAY_SIZE(st21nfca_gates)) {
for (i = skb_pipe_list->len + 3;
- i < ARRAY_SIZE(st21nfca_gates); i++) {
+ i < ARRAY_SIZE(st21nfca_gates) - 2; i++) {
r = nfc_hci_connect_gate(hdev,
NFC_HCI_HOST_CONTROLLER_ID,
st21nfca_gates[i].gate,
@@ -212,7 +221,6 @@
memcpy(hdev->init_data.gates, st21nfca_gates, sizeof(st21nfca_gates));
free_info:
kfree_skb(skb_pipe_info);
-free_list:
kfree_skb(skb_pipe_list);
return r;
}
@@ -257,16 +265,33 @@
static int st21nfca_hci_ready(struct nfc_hci_dev *hdev)
{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
struct sk_buff *skb;
u8 param;
+ u8 white_list[2];
+ int wl_size = 0;
int r;
- param = NFC_HCI_UICC_HOST_ID;
- r = nfc_hci_set_param(hdev, NFC_HCI_ADMIN_GATE,
- NFC_HCI_ADMIN_WHITELIST, ¶m, 1);
- if (r < 0)
- return r;
+ if (info->se_status->is_ese_present &&
+ info->se_status->is_uicc_present) {
+ white_list[wl_size++] = NFC_HCI_UICC_HOST_ID;
+ white_list[wl_size++] = ST21NFCA_ESE_HOST_ID;
+ } else if (!info->se_status->is_ese_present &&
+ info->se_status->is_uicc_present) {
+ white_list[wl_size++] = NFC_HCI_UICC_HOST_ID;
+ } else if (info->se_status->is_ese_present &&
+ !info->se_status->is_uicc_present) {
+ white_list[wl_size++] = ST21NFCA_ESE_HOST_ID;
+ }
+
+ if (wl_size) {
+ r = nfc_hci_set_param(hdev, NFC_HCI_ADMIN_GATE,
+ NFC_HCI_ADMIN_WHITELIST,
+ (u8 *) &white_list, wl_size);
+ if (r < 0)
+ return r;
+ }
/* Set NFC_MODE in device management gate to enable */
r = nfc_hci_get_param(hdev, ST21NFCA_DEVICE_MGNT_GATE,
@@ -274,8 +299,9 @@
if (r < 0)
return r;
- if (skb->data[0] == 0) {
- kfree_skb(skb);
+ param = skb->data[0];
+ kfree_skb(skb);
+ if (param == 0) {
param = 1;
r = nfc_hci_set_param(hdev, ST21NFCA_DEVICE_MGNT_GATE,
@@ -417,9 +443,12 @@
r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE,
ST21NFCA_RF_CARD_F_DATARATE,
param, 1);
- if (r < 0)
+ if (r < 0) {
+ kfree_skb(datarate_skb);
return r;
+ }
}
+ kfree_skb(datarate_skb);
/*
* Configure sens_res
@@ -673,15 +702,15 @@
struct nfc_target *target)
{
int r;
- struct sk_buff *nfcid2_skb = NULL, *nfcid1_skb;
+ struct sk_buff *nfcid_skb = NULL;
if (gate == ST21NFCA_RF_READER_F_GATE) {
r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE,
- ST21NFCA_RF_READER_F_NFCID2, &nfcid2_skb);
+ ST21NFCA_RF_READER_F_NFCID2, &nfcid_skb);
if (r < 0)
goto exit;
- if (nfcid2_skb->len > NFC_SENSF_RES_MAXSIZE) {
+ if (nfcid_skb->len > NFC_SENSF_RES_MAXSIZE) {
r = -EPROTO;
goto exit;
}
@@ -693,11 +722,11 @@
* - After the reception of SEL_RES with NFCIP-1 compliant bit
* set for type A frame NFCID1 will be updated
*/
- if (nfcid2_skb->len > 0) {
+ if (nfcid_skb->len > 0) {
/* P2P in type F */
- memcpy(target->sensf_res, nfcid2_skb->data,
- nfcid2_skb->len);
- target->sensf_res_len = nfcid2_skb->len;
+ memcpy(target->sensf_res, nfcid_skb->data,
+ nfcid_skb->len);
+ target->sensf_res_len = nfcid_skb->len;
/* NFC Forum Digital Protocol Table 44 */
if (target->sensf_res[0] == 0x01 &&
target->sensf_res[1] == 0xfe)
@@ -707,27 +736,28 @@
target->supported_protocols =
NFC_PROTO_FELICA_MASK;
} else {
+ kfree_skb(nfcid_skb);
/* P2P in type A */
r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE,
ST21NFCA_RF_READER_F_NFCID1,
- &nfcid1_skb);
+ &nfcid_skb);
if (r < 0)
goto exit;
- if (nfcid1_skb->len > NFC_NFCID1_MAXSIZE) {
+ if (nfcid_skb->len > NFC_NFCID1_MAXSIZE) {
r = -EPROTO;
goto exit;
}
- memcpy(target->sensf_res, nfcid1_skb->data,
- nfcid1_skb->len);
- target->sensf_res_len = nfcid1_skb->len;
+ memcpy(target->sensf_res, nfcid_skb->data,
+ nfcid_skb->len);
+ target->sensf_res_len = nfcid_skb->len;
target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
}
target->hci_reader_gate = ST21NFCA_RF_READER_F_GATE;
}
r = 1;
exit:
- kfree_skb(nfcid2_skb);
+ kfree_skb(nfcid_skb);
return r;
}
@@ -829,24 +859,82 @@
}
}
+static void st21nfca_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
+ struct sk_buff *skb)
+{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+ u8 gate = hdev->pipes[pipe].gate;
+
+ pr_debug("cmd: %x\n", cmd);
+
+ switch (cmd) {
+ case NFC_HCI_ANY_OPEN_PIPE:
+ if (gate != ST21NFCA_APDU_READER_GATE &&
+ hdev->pipes[pipe].dest_host != NFC_HCI_UICC_HOST_ID)
+ info->se_info.count_pipes++;
+
+ if (info->se_info.count_pipes == info->se_info.expected_pipes) {
+ del_timer_sync(&info->se_info.se_active_timer);
+ info->se_info.se_active = false;
+ info->se_info.count_pipes = 0;
+ complete(&info->se_info.req_completion);
+ }
+ break;
+ }
+}
+
+static int st21nfca_admin_event_received(struct nfc_hci_dev *hdev, u8 event,
+ struct sk_buff *skb)
+{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ pr_debug("admin event: %x\n", event);
+
+ switch (event) {
+ case ST21NFCA_EVT_HOT_PLUG:
+ if (info->se_info.se_active) {
+ if (!ST21NFCA_EVT_HOT_PLUG_IS_INHIBITED(skb)) {
+ del_timer_sync(&info->se_info.se_active_timer);
+ info->se_info.se_active = false;
+ complete(&info->se_info.req_completion);
+ } else {
+ mod_timer(&info->se_info.se_active_timer,
+ jiffies +
+ msecs_to_jiffies(ST21NFCA_SE_TO_PIPES));
+ }
+ }
+ break;
+ }
+ kfree_skb(skb);
+ return 0;
+}
+
/*
* Returns:
* <= 0: driver handled the event, skb consumed
* 1: driver does not handle the event, please do standard processing
*/
-static int st21nfca_hci_event_received(struct nfc_hci_dev *hdev, u8 gate,
+static int st21nfca_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe,
u8 event, struct sk_buff *skb)
{
+ u8 gate = hdev->pipes[pipe].gate;
+ u8 host = hdev->pipes[pipe].dest_host;
+
pr_debug("hci event: %d gate: %x\n", event, gate);
switch (gate) {
+ case NFC_HCI_ADMIN_GATE:
+ return st21nfca_admin_event_received(hdev, event, skb);
case ST21NFCA_RF_CARD_F_GATE:
return st21nfca_dep_event_received(hdev, event, skb);
+ case ST21NFCA_CONNECTIVITY_GATE:
+ return st21nfca_connectivity_event_received(hdev, host,
+ event, skb);
+ case ST21NFCA_APDU_READER_GATE:
+ return st21nfca_apdu_reader_event_received(hdev, event, skb);
default:
return 1;
}
- kfree_skb(skb);
- return 0;
}
static struct nfc_hci_ops st21nfca_hci_ops = {
@@ -865,11 +953,17 @@
.tm_send = st21nfca_hci_tm_send,
.check_presence = st21nfca_hci_check_presence,
.event_received = st21nfca_hci_event_received,
+ .cmd_received = st21nfca_hci_cmd_received,
+ .discover_se = st21nfca_hci_discover_se,
+ .enable_se = st21nfca_hci_enable_se,
+ .disable_se = st21nfca_hci_disable_se,
+ .se_io = st21nfca_hci_se_io,
};
int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
char *llc_name, int phy_headroom, int phy_tailroom,
- int phy_payload, struct nfc_hci_dev **hdev)
+ int phy_payload, struct nfc_hci_dev **hdev,
+ struct st21nfca_se_status *se_status)
{
struct st21nfca_hci_info *info;
int r = 0;
@@ -929,6 +1023,8 @@
goto err_alloc_hdev;
}
+ info->se_status = se_status;
+
nfc_hci_set_clientdata(info->hdev, info);
r = nfc_hci_register_device(info->hdev);
@@ -937,6 +1033,7 @@
*hdev = info->hdev;
st21nfca_dep_init(info->hdev);
+ st21nfca_se_init(info->hdev);
return 0;
@@ -955,6 +1052,7 @@
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
st21nfca_dep_deinit(hdev);
+ st21nfca_se_deinit(hdev);
nfc_hci_unregister_device(hdev);
nfc_hci_free_device(hdev);
kfree(info);
diff --git a/drivers/nfc/st21nfca/st21nfca.h b/drivers/nfc/st21nfca/st21nfca.h
index 7c2a852..15a78d3 100644
--- a/drivers/nfc/st21nfca/st21nfca.h
+++ b/drivers/nfc/st21nfca/st21nfca.h
@@ -20,6 +20,7 @@
#include <net/nfc/hci.h>
#include "st21nfca_dep.h"
+#include "st21nfca_se.h"
#define HCI_MODE 0
@@ -51,9 +52,15 @@
#define ST21NFCA_NUM_DEVICES 256
+struct st21nfca_se_status {
+ bool is_ese_present;
+ bool is_uicc_present;
+};
+
int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
char *llc_name, int phy_headroom, int phy_tailroom,
- int phy_payload, struct nfc_hci_dev **hdev);
+ int phy_payload, struct nfc_hci_dev **hdev,
+ struct st21nfca_se_status *se_status);
void st21nfca_hci_remove(struct nfc_hci_dev *hdev);
enum st21nfca_state {
@@ -66,6 +73,7 @@
void *phy_id;
struct nfc_hci_dev *hdev;
+ struct st21nfca_se_status *se_status;
enum st21nfca_state state;
@@ -76,13 +84,16 @@
void *async_cb_context;
struct st21nfca_dep_info dep_info;
+ struct st21nfca_se_info se_info;
};
/* Reader RF commands */
-#define ST21NFCA_WR_XCHG_DATA 0x10
+#define ST21NFCA_WR_XCHG_DATA 0x10
-#define ST21NFCA_RF_READER_F_GATE 0x14
-
-#define ST21NFCA_RF_CARD_F_GATE 0x24
+#define ST21NFCA_DEVICE_MGNT_GATE 0x01
+#define ST21NFCA_RF_READER_F_GATE 0x14
+#define ST21NFCA_RF_CARD_F_GATE 0x24
+#define ST21NFCA_APDU_READER_GATE 0xf0
+#define ST21NFCA_CONNECTIVITY_GATE 0x41
#endif /* __LOCAL_ST21NFCA_H_ */
diff --git a/drivers/nfc/st21nfca/st21nfca_se.c b/drivers/nfc/st21nfca/st21nfca_se.c
new file mode 100644
index 0000000..9b93d390
--- /dev/null
+++ b/drivers/nfc/st21nfca/st21nfca_se.c
@@ -0,0 +1,390 @@
+/*
+ * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <net/nfc/hci.h>
+
+#include "st21nfca.h"
+#include "st21nfca_se.h"
+
+#define ST21NFCA_EVT_UICC_ACTIVATE 0x10
+#define ST21NFCA_EVT_UICC_DEACTIVATE 0x13
+#define ST21NFCA_EVT_SE_HARD_RESET 0x20
+#define ST21NFCA_EVT_SE_SOFT_RESET 0x11
+#define ST21NFCA_EVT_SE_END_OF_APDU_TRANSFER 0x21
+#define ST21NFCA_EVT_SE_ACTIVATE 0x22
+#define ST21NFCA_EVT_SE_DEACTIVATE 0x23
+
+#define ST21NFCA_EVT_TRANSMIT_DATA 0x10
+#define ST21NFCA_EVT_WTX_REQUEST 0x11
+
+#define ST21NFCA_EVT_CONNECTIVITY 0x10
+#define ST21NFCA_EVT_TRANSACTION 0x12
+
+#define ST21NFCA_ESE_HOST_ID 0xc0
+
+#define ST21NFCA_SE_TO_HOT_PLUG 1000
+/* Connectivity pipe only */
+#define ST21NFCA_SE_COUNT_PIPE_UICC 0x01
+/* Connectivity + APDU Reader pipe */
+#define ST21NFCA_SE_COUNT_PIPE_EMBEDDED 0x02
+
+#define ST21NFCA_SE_MODE_OFF 0x00
+#define ST21NFCA_SE_MODE_ON 0x01
+
+#define ST21NFCA_PARAM_ATR 0x01
+#define ST21NFCA_ATR_DEFAULT_BWI 0x04
+
+/*
+ * WT = 2^BWI/10[s], convert into msecs and add a secure
+ * room by increasing by 2 this timeout
+ */
+#define ST21NFCA_BWI_TO_TIMEOUT(x) ((1 << x) * 200)
+#define ST21NFCA_ATR_GET_Y_FROM_TD(x) (x >> 4)
+
+/* If TA is present bit 0 is set */
+#define ST21NFCA_ATR_TA_PRESENT(x) (x & 0x01)
+/* If TB is present bit 1 is set */
+#define ST21NFCA_ATR_TB_PRESENT(x) (x & 0x02)
+
+static u8 st21nfca_se_get_bwi(struct nfc_hci_dev *hdev)
+{
+ int i;
+ u8 td;
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ /* Bits 8 to 5 of the first TB for T=1 encode BWI from zero to nine */
+ for (i = 1; i < ST21NFCA_ESE_MAX_LENGTH; i++) {
+ td = ST21NFCA_ATR_GET_Y_FROM_TD(info->se_info.atr[i]);
+ if (ST21NFCA_ATR_TA_PRESENT(td))
+ i++;
+ if (ST21NFCA_ATR_TB_PRESENT(td)) {
+ i++;
+ return info->se_info.atr[i] >> 4;
+ }
+ }
+ return ST21NFCA_ATR_DEFAULT_BWI;
+}
+
+static void st21nfca_se_get_atr(struct nfc_hci_dev *hdev)
+{
+ int r;
+ struct sk_buff *skb;
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ r = nfc_hci_get_param(hdev, ST21NFCA_APDU_READER_GATE,
+ ST21NFCA_PARAM_ATR, &skb);
+ if (r < 0)
+ return;
+
+ if (skb->len <= ST21NFCA_ESE_MAX_LENGTH) {
+ memcpy(info->se_info.atr, skb->data, skb->len);
+ info->se_info.wt_timeout =
+ ST21NFCA_BWI_TO_TIMEOUT(st21nfca_se_get_bwi(hdev));
+ }
+ kfree_skb(skb);
+}
+
+static int st21nfca_hci_control_se(struct nfc_hci_dev *hdev, u32 se_idx,
+ u8 state)
+{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+ int r;
+ struct sk_buff *sk_host_list;
+ u8 se_event, host_id;
+
+ switch (se_idx) {
+ case NFC_HCI_UICC_HOST_ID:
+ se_event = (state == ST21NFCA_SE_MODE_ON ?
+ ST21NFCA_EVT_UICC_ACTIVATE :
+ ST21NFCA_EVT_UICC_DEACTIVATE);
+
+ info->se_info.count_pipes = 0;
+ info->se_info.expected_pipes = ST21NFCA_SE_COUNT_PIPE_UICC;
+ break;
+ case ST21NFCA_ESE_HOST_ID:
+ se_event = (state == ST21NFCA_SE_MODE_ON ?
+ ST21NFCA_EVT_SE_ACTIVATE :
+ ST21NFCA_EVT_SE_DEACTIVATE);
+
+ info->se_info.count_pipes = 0;
+ info->se_info.expected_pipes = ST21NFCA_SE_COUNT_PIPE_EMBEDDED;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /*
+ * Wait for an EVT_HOT_PLUG in order to
+ * retrieve a relevant host list.
+ */
+ reinit_completion(&info->se_info.req_completion);
+ r = nfc_hci_send_event(hdev, ST21NFCA_DEVICE_MGNT_GATE, se_event,
+ NULL, 0);
+ if (r < 0)
+ return r;
+
+ mod_timer(&info->se_info.se_active_timer, jiffies +
+ msecs_to_jiffies(ST21NFCA_SE_TO_HOT_PLUG));
+ info->se_info.se_active = true;
+
+ /* Ignore return value and check in any case the host_list */
+ wait_for_completion_interruptible(&info->se_info.req_completion);
+
+ r = nfc_hci_get_param(hdev, NFC_HCI_ADMIN_GATE,
+ NFC_HCI_ADMIN_HOST_LIST,
+ &sk_host_list);
+ if (r < 0)
+ return r;
+
+ host_id = sk_host_list->data[sk_host_list->len - 1];
+ kfree_skb(sk_host_list);
+
+ if (state == ST21NFCA_SE_MODE_ON && host_id == se_idx)
+ return se_idx;
+ else if (state == ST21NFCA_SE_MODE_OFF && host_id != se_idx)
+ return se_idx;
+
+ return -1;
+}
+
+int st21nfca_hci_discover_se(struct nfc_hci_dev *hdev)
+{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+ int se_count = 0;
+
+ if (info->se_status->is_uicc_present) {
+ nfc_add_se(hdev->ndev, NFC_HCI_UICC_HOST_ID, NFC_SE_UICC);
+ se_count++;
+ }
+
+ if (info->se_status->is_ese_present) {
+ nfc_add_se(hdev->ndev, ST21NFCA_ESE_HOST_ID, NFC_SE_EMBEDDED);
+ se_count++;
+ }
+
+ return !se_count;
+}
+EXPORT_SYMBOL(st21nfca_hci_discover_se);
+
+int st21nfca_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx)
+{
+ int r;
+
+ /*
+ * According to upper layer, se_idx == NFC_SE_UICC when
+ * info->se_status->is_uicc_enable is true should never happen.
+ * Same for eSE.
+ */
+ r = st21nfca_hci_control_se(hdev, se_idx, ST21NFCA_SE_MODE_ON);
+
+ if (r == ST21NFCA_ESE_HOST_ID) {
+ st21nfca_se_get_atr(hdev);
+ r = nfc_hci_send_event(hdev, ST21NFCA_APDU_READER_GATE,
+ ST21NFCA_EVT_SE_SOFT_RESET, NULL, 0);
+ if (r < 0)
+ return r;
+ } else if (r < 0) {
+ /*
+ * The activation tentative failed, the secure element
+ * is not connected. Remove from the list.
+ */
+ nfc_remove_se(hdev->ndev, se_idx);
+ return r;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(st21nfca_hci_enable_se);
+
+int st21nfca_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx)
+{
+ int r;
+
+ /*
+ * According to upper layer, se_idx == NFC_SE_UICC when
+ * info->se_status->is_uicc_enable is true should never happen
+ * Same for eSE.
+ */
+ r = st21nfca_hci_control_se(hdev, se_idx, ST21NFCA_SE_MODE_OFF);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+EXPORT_SYMBOL(st21nfca_hci_disable_se);
+
+int st21nfca_hci_se_io(struct nfc_hci_dev *hdev, u32 se_idx,
+ u8 *apdu, size_t apdu_length,
+ se_io_cb_t cb, void *cb_context)
+{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ pr_debug("se_io %x\n", se_idx);
+
+ switch (se_idx) {
+ case ST21NFCA_ESE_HOST_ID:
+ info->se_info.cb = cb;
+ info->se_info.cb_context = cb_context;
+ mod_timer(&info->se_info.bwi_timer, jiffies +
+ msecs_to_jiffies(info->se_info.wt_timeout));
+ info->se_info.bwi_active = true;
+ return nfc_hci_send_event(hdev, ST21NFCA_APDU_READER_GATE,
+ ST21NFCA_EVT_TRANSMIT_DATA,
+ apdu, apdu_length);
+ default:
+ return -ENODEV;
+ }
+}
+EXPORT_SYMBOL(st21nfca_hci_se_io);
+
+static void st21nfca_se_wt_timeout(unsigned long data)
+{
+ /*
+ * No answer from the secure element
+ * within the defined timeout.
+ * Let's send a reset request as recovery procedure.
+ * According to the situation, we first try to send a software reset
+ * to the secure element. If the next command is still not
+ * answering in time, we send to the CLF a secure element hardware
+ * reset request.
+ */
+ /* hardware reset managed through VCC_UICC_OUT power supply */
+ u8 param = 0x01;
+ struct st21nfca_hci_info *info = (struct st21nfca_hci_info *) data;
+
+ pr_debug("\n");
+
+ info->se_info.bwi_active = false;
+
+ if (!info->se_info.xch_error) {
+ info->se_info.xch_error = true;
+ nfc_hci_send_event(info->hdev, ST21NFCA_APDU_READER_GATE,
+ ST21NFCA_EVT_SE_SOFT_RESET, NULL, 0);
+ } else {
+ info->se_info.xch_error = false;
+ nfc_hci_send_event(info->hdev, ST21NFCA_DEVICE_MGNT_GATE,
+ ST21NFCA_EVT_SE_HARD_RESET, ¶m, 1);
+ }
+ info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);
+}
+
+static void st21nfca_se_activation_timeout(unsigned long data)
+{
+ struct st21nfca_hci_info *info = (struct st21nfca_hci_info *) data;
+
+ pr_debug("\n");
+
+ info->se_info.se_active = false;
+
+ complete(&info->se_info.req_completion);
+}
+
+/*
+ * Returns:
+ * <= 0: driver handled the event, skb consumed
+ * 1: driver does not handle the event, please do standard processing
+ */
+int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
+ u8 event, struct sk_buff *skb)
+{
+ int r = 0;
+
+ pr_debug("connectivity gate event: %x\n", event);
+
+ switch (event) {
+ case ST21NFCA_EVT_CONNECTIVITY:
+ break;
+ case ST21NFCA_EVT_TRANSACTION:
+ break;
+ default:
+ return 1;
+ }
+ kfree_skb(skb);
+ return r;
+}
+EXPORT_SYMBOL(st21nfca_connectivity_event_received);
+
+int st21nfca_apdu_reader_event_received(struct nfc_hci_dev *hdev,
+ u8 event, struct sk_buff *skb)
+{
+ int r = 0;
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ pr_debug("apdu reader gate event: %x\n", event);
+
+ switch (event) {
+ case ST21NFCA_EVT_TRANSMIT_DATA:
+ del_timer_sync(&info->se_info.bwi_timer);
+ info->se_info.bwi_active = false;
+ r = nfc_hci_send_event(hdev, ST21NFCA_DEVICE_MGNT_GATE,
+ ST21NFCA_EVT_SE_END_OF_APDU_TRANSFER, NULL, 0);
+ if (r < 0)
+ goto exit;
+
+ info->se_info.cb(info->se_info.cb_context,
+ skb->data, skb->len, 0);
+ break;
+ case ST21NFCA_EVT_WTX_REQUEST:
+ mod_timer(&info->se_info.bwi_timer, jiffies +
+ msecs_to_jiffies(info->se_info.wt_timeout));
+ break;
+ }
+
+exit:
+ kfree_skb(skb);
+ return r;
+}
+EXPORT_SYMBOL(st21nfca_apdu_reader_event_received);
+
+void st21nfca_se_init(struct nfc_hci_dev *hdev)
+{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ init_completion(&info->se_info.req_completion);
+ /* initialize timers */
+ init_timer(&info->se_info.bwi_timer);
+ info->se_info.bwi_timer.data = (unsigned long)info;
+ info->se_info.bwi_timer.function = st21nfca_se_wt_timeout;
+ info->se_info.bwi_active = false;
+
+ init_timer(&info->se_info.se_active_timer);
+ info->se_info.se_active_timer.data = (unsigned long)info;
+ info->se_info.se_active_timer.function = st21nfca_se_activation_timeout;
+ info->se_info.se_active = false;
+
+ info->se_info.count_pipes = 0;
+ info->se_info.expected_pipes = 0;
+
+ info->se_info.xch_error = false;
+
+ info->se_info.wt_timeout =
+ ST21NFCA_BWI_TO_TIMEOUT(ST21NFCA_ATR_DEFAULT_BWI);
+}
+EXPORT_SYMBOL(st21nfca_se_init);
+
+void st21nfca_se_deinit(struct nfc_hci_dev *hdev)
+{
+ struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
+
+ if (info->se_info.bwi_active)
+ del_timer_sync(&info->se_info.bwi_timer);
+ if (info->se_info.se_active)
+ del_timer_sync(&info->se_info.se_active_timer);
+
+ info->se_info.bwi_active = false;
+ info->se_info.se_active = false;
+}
+EXPORT_SYMBOL(st21nfca_se_deinit);
diff --git a/drivers/nfc/st21nfca/st21nfca_se.h b/drivers/nfc/st21nfca/st21nfca_se.h
new file mode 100644
index 0000000..b172cfc
--- /dev/null
+++ b/drivers/nfc/st21nfca/st21nfca_se.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __ST21NFCA_SE_H
+#define __ST21NFCA_SE_H
+
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+
+/*
+ * ref ISO7816-3 chap 8.1. the initial character TS is followed by a
+ * sequence of at most 32 characters.
+ */
+#define ST21NFCA_ESE_MAX_LENGTH 33
+#define ST21NFCA_ESE_HOST_ID 0xc0
+
+struct st21nfca_se_info {
+ u8 atr[ST21NFCA_ESE_MAX_LENGTH];
+ struct completion req_completion;
+
+ struct timer_list bwi_timer;
+ int wt_timeout; /* in msecs */
+ bool bwi_active;
+
+ struct timer_list se_active_timer;
+ bool se_active;
+ int expected_pipes;
+ int count_pipes;
+
+ bool xch_error;
+
+ se_io_cb_t cb;
+ void *cb_context;
+};
+
+int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host,
+ u8 event, struct sk_buff *skb);
+int st21nfca_apdu_reader_event_received(struct nfc_hci_dev *hdev,
+ u8 event, struct sk_buff *skb);
+
+int st21nfca_hci_discover_se(struct nfc_hci_dev *hdev);
+int st21nfca_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx);
+int st21nfca_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx);
+int st21nfca_hci_se_io(struct nfc_hci_dev *hdev, u32 se_idx,
+ u8 *apdu, size_t apdu_length,
+ se_io_cb_t cb, void *cb_context);
+
+void st21nfca_se_init(struct nfc_hci_dev *hdev);
+void st21nfca_se_deinit(struct nfc_hci_dev *hdev);
+#endif /* __ST21NFCA_SE_H */
diff --git a/drivers/nfc/st21nfcb/i2c.c b/drivers/nfc/st21nfcb/i2c.c
index 01ba865..eb88693 100644
--- a/drivers/nfc/st21nfcb/i2c.c
+++ b/drivers/nfc/st21nfcb/i2c.c
@@ -199,7 +199,7 @@
struct sk_buff *skb = NULL;
int r;
- if (!phy || irq != phy->i2c_dev->irq) {
+ if (!phy || !phy->ndlc || irq != phy->i2c_dev->irq) {
WARN_ON_ONCE(1);
return IRQ_NONE;
}
@@ -343,18 +343,22 @@
return -ENODEV;
}
+ r = ndlc_probe(phy, &i2c_phy_ops, &client->dev,
+ ST21NFCB_FRAME_HEADROOM, ST21NFCB_FRAME_TAILROOM,
+ &phy->ndlc);
+ if (r < 0) {
+ nfc_err(&client->dev, "Unable to register ndlc layer\n");
+ return r;
+ }
+
r = devm_request_threaded_irq(&client->dev, client->irq, NULL,
st21nfcb_nci_irq_thread_fn,
phy->irq_polarity | IRQF_ONESHOT,
ST21NFCB_NCI_DRIVER_NAME, phy);
- if (r < 0) {
+ if (r < 0)
nfc_err(&client->dev, "Unable to register IRQ handler\n");
- return r;
- }
- return ndlc_probe(phy, &i2c_phy_ops, &client->dev,
- ST21NFCB_FRAME_HEADROOM, ST21NFCB_FRAME_TAILROOM,
- &phy->ndlc);
+ return r;
}
static int st21nfcb_nci_i2c_remove(struct i2c_client *client)
@@ -373,6 +377,7 @@
#ifdef CONFIG_OF
static const struct of_device_id of_st21nfcb_i2c_match[] = {
+ { .compatible = "st,st21nfcb-i2c", },
{ .compatible = "st,st21nfcb_i2c", },
{}
};
diff --git a/drivers/nfc/st21nfcb/ndlc.c b/drivers/nfc/st21nfcb/ndlc.c
index bac50e8..5fbf59d 100644
--- a/drivers/nfc/st21nfcb/ndlc.c
+++ b/drivers/nfc/st21nfcb/ndlc.c
@@ -138,7 +138,7 @@
default:
pr_err("UNKNOWN Packet Control Byte=%d\n", pcb);
kfree_skb(skb);
- break;
+ continue;
}
skb_queue_head(&ndlc->send_q, skb);
}
@@ -297,6 +297,5 @@
skb_queue_purge(&ndlc->send_q);
st21nfcb_nci_remove(ndlc->ndev);
- kfree(ndlc);
}
EXPORT_SYMBOL(ndlc_remove);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 642d426..3d37c6e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1514,6 +1514,8 @@
struct list_head napi_list;
struct list_head unreg_list;
struct list_head close_list;
+ struct list_head ptype_all;
+ struct list_head ptype_specific;
struct {
struct list_head upper;
diff --git a/include/linux/platform_data/st21nfca.h b/include/linux/platform_data/st21nfca.h
index 5087fff..cc2bdaf 100644
--- a/include/linux/platform_data/st21nfca.h
+++ b/include/linux/platform_data/st21nfca.h
@@ -26,6 +26,8 @@
struct st21nfca_nfc_platform_data {
unsigned int gpio_ena;
unsigned int irq_polarity;
+ bool is_ese_present;
+ bool is_uicc_present;
};
#endif /* _ST21NFCA_HCI_H_ */
diff --git a/include/linux/platform_data/st21nfcb.h b/include/linux/platform_data/st21nfcb.h
index c3b432f..b023373 100644
--- a/include/linux/platform_data/st21nfcb.h
+++ b/include/linux/platform_data/st21nfcb.h
@@ -19,8 +19,6 @@
#ifndef _ST21NFCB_NCI_H_
#define _ST21NFCB_NCI_H_
-#include <linux/i2c.h>
-
#define ST21NFCB_NCI_DRIVER_NAME "st21nfcb_nci"
struct st21nfcb_nfc_platform_data {
@@ -28,4 +26,4 @@
unsigned int irq_polarity;
};
-#endif /* _ST21NFCA_HCI_H_ */
+#endif /* _ST21NFCB_NCI_H_ */
diff --git a/include/net/geneve.h b/include/net/geneve.h
index 03aa2ad..14fb8d3 100644
--- a/include/net/geneve.h
+++ b/include/net/geneve.h
@@ -90,7 +90,7 @@
struct sk_buff *skb, __be32 src, __be32 dst, __u8 tos,
__u8 ttl, __be16 df, __be16 src_port, __be16 dst_port,
__be16 tun_flags, u8 vni[3], u8 opt_len, u8 *opt,
- bool xnet);
+ bool csum, bool xnet);
#endif /*ifdef CONFIG_INET */
#endif /*ifdef__NET_GENEVE_H */
diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index 14bd0e1..ab672b5 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -51,8 +51,10 @@
int (*tm_send)(struct nfc_hci_dev *hdev, struct sk_buff *skb);
int (*check_presence)(struct nfc_hci_dev *hdev,
struct nfc_target *target);
- int (*event_received)(struct nfc_hci_dev *hdev, u8 gate, u8 event,
+ int (*event_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 event,
struct sk_buff *skb);
+ void (*cmd_received)(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
+ struct sk_buff *skb);
int (*fw_download)(struct nfc_hci_dev *hdev, const char *firmware_name);
int (*discover_se)(struct nfc_hci_dev *dev);
int (*enable_se)(struct nfc_hci_dev *dev, u32 se_idx);
@@ -63,8 +65,10 @@
};
/* Pipes */
-#define NFC_HCI_INVALID_PIPE 0x80
#define NFC_HCI_DO_NOT_CREATE_PIPE 0x81
+#define NFC_HCI_INVALID_PIPE 0x80
+#define NFC_HCI_INVALID_GATE 0xFF
+#define NFC_HCI_INVALID_HOST 0x80
#define NFC_HCI_LINK_MGMT_PIPE 0x00
#define NFC_HCI_ADMIN_PIPE 0x01
@@ -73,7 +77,13 @@
u8 pipe;
};
+struct nfc_hci_pipe {
+ u8 gate;
+ u8 dest_host;
+};
+
#define NFC_HCI_MAX_CUSTOM_GATES 50
+#define NFC_HCI_MAX_PIPES 127
struct nfc_hci_init_data {
u8 gate_count;
struct nfc_hci_gate gates[NFC_HCI_MAX_CUSTOM_GATES];
@@ -125,6 +135,7 @@
void *clientdata;
u8 gate2pipe[NFC_HCI_MAX_GATES];
+ struct nfc_hci_pipe pipes[NFC_HCI_MAX_PIPES];
u8 sw_romlib;
u8 sw_patch;
@@ -167,6 +178,8 @@
void nfc_hci_driver_failure(struct nfc_hci_dev *hdev, int err);
int nfc_hci_result_to_errno(u8 result);
+void nfc_hci_reset_pipes(struct nfc_hci_dev *dev);
+void nfc_hci_reset_pipes_per_host(struct nfc_hci_dev *hdev, u8 host);
/* Host IDs */
#define NFC_HCI_HOST_CONTROLLER_ID 0x00
@@ -219,6 +232,12 @@
#define NFC_HCI_EVT_POST_DATA 0x02
#define NFC_HCI_EVT_HOT_PLUG 0x03
+/* Generic commands */
+#define NFC_HCI_ANY_SET_PARAMETER 0x01
+#define NFC_HCI_ANY_GET_PARAMETER 0x02
+#define NFC_HCI_ANY_OPEN_PIPE 0x03
+#define NFC_HCI_ANY_CLOSE_PIPE 0x04
+
/* Reader RF gates events */
#define NFC_HCI_EVT_READER_REQUESTED 0x10
#define NFC_HCI_EVT_END_OPERATION 0x11
@@ -249,8 +268,6 @@
int nfc_hci_send_cmd_async(struct nfc_hci_dev *hdev, u8 gate, u8 cmd,
const u8 *param, size_t param_len,
data_exchange_cb_t cb, void *cb_context);
-int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
- const u8 *param, size_t param_len);
int nfc_hci_send_event(struct nfc_hci_dev *hdev, u8 gate, u8 event,
const u8 *param, size_t param_len);
int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate);
diff --git a/include/net/sock.h b/include/net/sock.h
index 2210fec..1534149 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1374,29 +1374,6 @@
#define SOCK_BINDADDR_LOCK 4
#define SOCK_BINDPORT_LOCK 8
-/* sock_iocb: used to kick off async processing of socket ios */
-struct sock_iocb {
- struct list_head list;
-
- int flags;
- int size;
- struct socket *sock;
- struct sock *sk;
- struct scm_cookie *scm;
- struct msghdr *msg, async_msg;
- struct kiocb *kiocb;
-};
-
-static inline struct sock_iocb *kiocb_to_siocb(struct kiocb *iocb)
-{
- return (struct sock_iocb *)iocb->private;
-}
-
-static inline struct kiocb *siocb_to_kiocb(struct sock_iocb *si)
-{
- return si->kiocb;
-}
-
struct socket_alloc {
struct socket socket;
struct inode vfs_inode;
diff --git a/net/core/dev.c b/net/core/dev.c
index 7f028d4..1d564d6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -371,9 +371,10 @@
static inline struct list_head *ptype_head(const struct packet_type *pt)
{
if (pt->type == htons(ETH_P_ALL))
- return &ptype_all;
+ return pt->dev ? &pt->dev->ptype_all : &ptype_all;
else
- return &ptype_base[ntohs(pt->type) & PTYPE_HASH_MASK];
+ return pt->dev ? &pt->dev->ptype_specific :
+ &ptype_base[ntohs(pt->type) & PTYPE_HASH_MASK];
}
/**
@@ -1734,6 +1735,23 @@
return pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
}
+static inline void deliver_ptype_list_skb(struct sk_buff *skb,
+ struct packet_type **pt,
+ struct net_device *dev, __be16 type,
+ struct list_head *ptype_list)
+{
+ struct packet_type *ptype, *pt_prev = *pt;
+
+ list_for_each_entry_rcu(ptype, ptype_list, list) {
+ if (ptype->type != type)
+ continue;
+ if (pt_prev)
+ deliver_skb(skb, pt_prev, dev);
+ pt_prev = ptype;
+ }
+ *pt = pt_prev;
+}
+
static inline bool skb_loop_sk(struct packet_type *ptype, struct sk_buff *skb)
{
if (!ptype->af_packet_priv || !skb->sk)
@@ -1757,45 +1775,54 @@
struct packet_type *ptype;
struct sk_buff *skb2 = NULL;
struct packet_type *pt_prev = NULL;
+ struct list_head *ptype_list = &ptype_all;
rcu_read_lock();
- list_for_each_entry_rcu(ptype, &ptype_all, list) {
+again:
+ list_for_each_entry_rcu(ptype, ptype_list, list) {
/* Never send packets back to the socket
* they originated from - MvS (miquels@drinkel.ow.org)
*/
- if ((ptype->dev == dev || !ptype->dev) &&
- (!skb_loop_sk(ptype, skb))) {
- if (pt_prev) {
- deliver_skb(skb2, pt_prev, skb->dev);
- pt_prev = ptype;
- continue;
- }
+ if (skb_loop_sk(ptype, skb))
+ continue;
- skb2 = skb_clone(skb, GFP_ATOMIC);
- if (!skb2)
- break;
-
- net_timestamp_set(skb2);
-
- /* skb->nh should be correctly
- set by sender, so that the second statement is
- just protection against buggy protocols.
- */
- skb_reset_mac_header(skb2);
-
- if (skb_network_header(skb2) < skb2->data ||
- skb_network_header(skb2) > skb_tail_pointer(skb2)) {
- net_crit_ratelimited("protocol %04x is buggy, dev %s\n",
- ntohs(skb2->protocol),
- dev->name);
- skb_reset_network_header(skb2);
- }
-
- skb2->transport_header = skb2->network_header;
- skb2->pkt_type = PACKET_OUTGOING;
+ if (pt_prev) {
+ deliver_skb(skb2, pt_prev, skb->dev);
pt_prev = ptype;
+ continue;
}
+
+ /* need to clone skb, done only once */
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (!skb2)
+ goto out_unlock;
+
+ net_timestamp_set(skb2);
+
+ /* skb->nh should be correctly
+ * set by sender, so that the second statement is
+ * just protection against buggy protocols.
+ */
+ skb_reset_mac_header(skb2);
+
+ if (skb_network_header(skb2) < skb2->data ||
+ skb_network_header(skb2) > skb_tail_pointer(skb2)) {
+ net_crit_ratelimited("protocol %04x is buggy, dev %s\n",
+ ntohs(skb2->protocol),
+ dev->name);
+ skb_reset_network_header(skb2);
+ }
+
+ skb2->transport_header = skb2->network_header;
+ skb2->pkt_type = PACKET_OUTGOING;
+ pt_prev = ptype;
}
+
+ if (ptype_list == &ptype_all) {
+ ptype_list = &dev->ptype_all;
+ goto again;
+ }
+out_unlock:
if (pt_prev)
pt_prev->func(skb2, skb->dev, pt_prev, skb->dev);
rcu_read_unlock();
@@ -2617,7 +2644,7 @@
unsigned int len;
int rc;
- if (!list_empty(&ptype_all))
+ if (!list_empty(&ptype_all) || !list_empty(&dev->ptype_all))
dev_queue_xmit_nit(skb, dev);
len = skb->len;
@@ -3615,7 +3642,6 @@
struct packet_type *ptype, *pt_prev;
rx_handler_func_t *rx_handler;
struct net_device *orig_dev;
- struct net_device *null_or_dev;
bool deliver_exact = false;
int ret = NET_RX_DROP;
__be16 type;
@@ -3658,11 +3684,15 @@
goto skip_taps;
list_for_each_entry_rcu(ptype, &ptype_all, list) {
- if (!ptype->dev || ptype->dev == skb->dev) {
- if (pt_prev)
- ret = deliver_skb(skb, pt_prev, orig_dev);
- pt_prev = ptype;
- }
+ if (pt_prev)
+ ret = deliver_skb(skb, pt_prev, orig_dev);
+ pt_prev = ptype;
+ }
+
+ list_for_each_entry_rcu(ptype, &skb->dev->ptype_all, list) {
+ if (pt_prev)
+ ret = deliver_skb(skb, pt_prev, orig_dev);
+ pt_prev = ptype;
}
skip_taps:
@@ -3718,19 +3748,21 @@
skb->vlan_tci = 0;
}
- /* deliver only exact match when indicated */
- null_or_dev = deliver_exact ? skb->dev : NULL;
-
type = skb->protocol;
- list_for_each_entry_rcu(ptype,
- &ptype_base[ntohs(type) & PTYPE_HASH_MASK], list) {
- if (ptype->type == type &&
- (ptype->dev == null_or_dev || ptype->dev == skb->dev ||
- ptype->dev == orig_dev)) {
- if (pt_prev)
- ret = deliver_skb(skb, pt_prev, orig_dev);
- pt_prev = ptype;
- }
+
+ /* deliver only exact match when indicated */
+ if (likely(!deliver_exact)) {
+ deliver_ptype_list_skb(skb, &pt_prev, orig_dev, type,
+ &ptype_base[ntohs(type) &
+ PTYPE_HASH_MASK]);
+ }
+
+ deliver_ptype_list_skb(skb, &pt_prev, orig_dev, type,
+ &orig_dev->ptype_specific);
+
+ if (unlikely(skb->dev != orig_dev)) {
+ deliver_ptype_list_skb(skb, &pt_prev, orig_dev, type,
+ &skb->dev->ptype_specific);
}
if (pt_prev) {
@@ -6579,6 +6611,8 @@
/* paranoia */
BUG_ON(netdev_refcnt_read(dev));
+ BUG_ON(!list_empty(&dev->ptype_all));
+ BUG_ON(!list_empty(&dev->ptype_specific));
WARN_ON(rcu_access_pointer(dev->ip_ptr));
WARN_ON(rcu_access_pointer(dev->ip6_ptr));
WARN_ON(dev->dn_ptr);
@@ -6761,6 +6795,8 @@
INIT_LIST_HEAD(&dev->adj_list.lower);
INIT_LIST_HEAD(&dev->all_adj_list.upper);
INIT_LIST_HEAD(&dev->all_adj_list.lower);
+ INIT_LIST_HEAD(&dev->ptype_all);
+ INIT_LIST_HEAD(&dev->ptype_specific);
dev->priv_flags = IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM;
setup(dev);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 07447d1..fedd7ab 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2148,7 +2148,7 @@
dev->ifindex = ifm->ifi_index;
if (ops->newlink) {
- err = ops->newlink(net, dev, tb, data);
+ err = ops->newlink(link_net ? : net, dev, tb, data);
/* Drivers should call free_netdev() in ->destructor
* and unregister it on failure after registration
* so that device could be finally freed in rtnl_unlock.
diff --git a/net/ipv4/geneve.c b/net/ipv4/geneve.c
index 93e5119..5a4828b 100644
--- a/net/ipv4/geneve.c
+++ b/net/ipv4/geneve.c
@@ -107,13 +107,13 @@
struct sk_buff *skb, __be32 src, __be32 dst, __u8 tos,
__u8 ttl, __be16 df, __be16 src_port, __be16 dst_port,
__be16 tun_flags, u8 vni[3], u8 opt_len, u8 *opt,
- bool xnet)
+ bool csum, bool xnet)
{
struct genevehdr *gnvh;
int min_headroom;
int err;
- skb = udp_tunnel_handle_offloads(skb, !gs->sock->sk->sk_no_check_tx);
+ skb = udp_tunnel_handle_offloads(skb, csum);
if (IS_ERR(skb))
return PTR_ERR(skb);
@@ -138,7 +138,7 @@
return udp_tunnel_xmit_skb(rt, skb, src, dst,
tos, ttl, df, src_port, dst_port, xnet,
- gs->sock->sk->sk_no_check_tx);
+ !csum);
}
EXPORT_SYMBOL_GPL(geneve_xmit_skb);
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 2197af00..a36777b 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -695,7 +695,7 @@
static int netlink_mmap_sendmsg(struct sock *sk, struct msghdr *msg,
u32 dst_portid, u32 dst_group,
- struct sock_iocb *siocb)
+ struct scm_cookie *scm)
{
struct netlink_sock *nlk = nlk_sk(sk);
struct netlink_ring *ring;
@@ -741,7 +741,7 @@
NETLINK_CB(skb).portid = nlk->portid;
NETLINK_CB(skb).dst_group = dst_group;
- NETLINK_CB(skb).creds = siocb->scm->creds;
+ NETLINK_CB(skb).creds = scm->creds;
err = security_netlink_send(sk, skb);
if (err) {
@@ -820,7 +820,7 @@
#define netlink_tx_is_mmaped(sk) false
#define netlink_mmap sock_no_mmap
#define netlink_poll datagram_poll
-#define netlink_mmap_sendmsg(sk, msg, dst_portid, dst_group, siocb) 0
+#define netlink_mmap_sendmsg(sk, msg, dst_portid, dst_group, scm) 0
#endif /* CONFIG_NETLINK_MMAP */
static void netlink_skb_destructor(struct sk_buff *skb)
@@ -2259,7 +2259,6 @@
static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct msghdr *msg, size_t len)
{
- struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_nl *, addr, msg->msg_name);
@@ -2273,10 +2272,7 @@
if (msg->msg_flags&MSG_OOB)
return -EOPNOTSUPP;
- if (NULL == siocb->scm)
- siocb->scm = &scm;
-
- err = scm_send(sock, msg, siocb->scm, true);
+ err = scm_send(sock, msg, &scm, true);
if (err < 0)
return err;
@@ -2305,7 +2301,7 @@
if (netlink_tx_is_mmaped(sk) &&
msg->msg_iter.iov->iov_base == NULL) {
err = netlink_mmap_sendmsg(sk, msg, dst_portid, dst_group,
- siocb);
+ &scm);
goto out;
}
@@ -2319,7 +2315,7 @@
NETLINK_CB(skb).portid = nlk->portid;
NETLINK_CB(skb).dst_group = dst_group;
- NETLINK_CB(skb).creds = siocb->scm->creds;
+ NETLINK_CB(skb).creds = scm.creds;
NETLINK_CB(skb).flags = netlink_skb_flags;
err = -EFAULT;
@@ -2341,7 +2337,7 @@
err = netlink_unicast(sk, skb, dst_portid, msg->msg_flags&MSG_DONTWAIT);
out:
- scm_destroy(siocb->scm);
+ scm_destroy(&scm);
return err;
}
@@ -2349,7 +2345,6 @@
struct msghdr *msg, size_t len,
int flags)
{
- struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct scm_cookie scm;
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
@@ -2412,11 +2407,8 @@
if (nlk->flags & NETLINK_RECV_PKTINFO)
netlink_cmsg_recv_pktinfo(msg, skb);
- if (NULL == siocb->scm) {
- memset(&scm, 0, sizeof(scm));
- siocb->scm = &scm;
- }
- siocb->scm->creds = *NETLINK_CREDS(skb);
+ memset(&scm, 0, sizeof(scm));
+ scm.creds = *NETLINK_CREDS(skb);
if (flags & MSG_TRUNC)
copied = data_skb->len;
@@ -2431,7 +2423,7 @@
}
}
- scm_recv(sock, msg, siocb->scm, flags);
+ scm_recv(sock, msg, &scm, flags);
out:
netlink_rcv_wake(sk);
return err ? : copied;
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 819b877..7f1b635 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -555,7 +555,6 @@
int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
{
-
struct nfc_se *se;
int rc;
@@ -605,7 +604,6 @@
int nfc_disable_se(struct nfc_dev *dev, u32 se_idx)
{
-
struct nfc_se *se;
int rc;
diff --git a/net/nfc/hci/command.c b/net/nfc/hci/command.c
index 91df487..844673c 100644
--- a/net/nfc/hci/command.c
+++ b/net/nfc/hci/command.c
@@ -116,23 +116,6 @@
}
EXPORT_SYMBOL(nfc_hci_send_event);
-int nfc_hci_send_response(struct nfc_hci_dev *hdev, u8 gate, u8 response,
- const u8 *param, size_t param_len)
-{
- u8 pipe;
-
- pr_debug("\n");
-
- pipe = hdev->gate2pipe[gate];
- if (pipe == NFC_HCI_INVALID_PIPE)
- return -EADDRNOTAVAIL;
-
- return nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_RESPONSE,
- response, param, param_len, NULL, NULL,
- 0);
-}
-EXPORT_SYMBOL(nfc_hci_send_response);
-
/*
* Execute an hci command sent to gate.
* skb will contain response data if success. skb can be NULL if you are not
@@ -331,7 +314,7 @@
if (r < 0)
return r;
- memset(hdev->gate2pipe, NFC_HCI_INVALID_PIPE, sizeof(hdev->gate2pipe));
+ nfc_hci_reset_pipes(hdev);
return 0;
}
@@ -345,7 +328,7 @@
pr_debug("\n");
- if (hdev->gate2pipe[dest_gate] == NFC_HCI_DO_NOT_CREATE_PIPE)
+ if (pipe == NFC_HCI_DO_NOT_CREATE_PIPE)
return 0;
if (hdev->gate2pipe[dest_gate] != NFC_HCI_INVALID_PIPE)
@@ -380,6 +363,8 @@
return r;
}
+ hdev->pipes[pipe].gate = dest_gate;
+ hdev->pipes[pipe].dest_host = dest_host;
hdev->gate2pipe[dest_gate] = pipe;
return 0;
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index ef50e77..6e061da 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -46,6 +46,32 @@
}
EXPORT_SYMBOL(nfc_hci_result_to_errno);
+void nfc_hci_reset_pipes(struct nfc_hci_dev *hdev)
+{
+ int i = 0;
+
+ for (i = 0; i < NFC_HCI_MAX_PIPES; i++) {
+ hdev->pipes[i].gate = NFC_HCI_INVALID_GATE;
+ hdev->pipes[i].dest_host = NFC_HCI_INVALID_HOST;
+ }
+ memset(hdev->gate2pipe, NFC_HCI_INVALID_PIPE, sizeof(hdev->gate2pipe));
+}
+EXPORT_SYMBOL(nfc_hci_reset_pipes);
+
+void nfc_hci_reset_pipes_per_host(struct nfc_hci_dev *hdev, u8 host)
+{
+ int i = 0;
+
+ for (i = 0; i < NFC_HCI_MAX_PIPES; i++) {
+ if (hdev->pipes[i].dest_host != host)
+ continue;
+
+ hdev->pipes[i].gate = NFC_HCI_INVALID_GATE;
+ hdev->pipes[i].dest_host = NFC_HCI_INVALID_HOST;
+ }
+}
+EXPORT_SYMBOL(nfc_hci_reset_pipes_per_host);
+
static void nfc_hci_msg_tx_work(struct work_struct *work)
{
struct nfc_hci_dev *hdev = container_of(work, struct nfc_hci_dev,
@@ -167,48 +193,69 @@
void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd,
struct sk_buff *skb)
{
- int r = 0;
- u8 gate = nfc_hci_pipe2gate(hdev, pipe);
- u8 local_gate, new_pipe;
- u8 gate_opened = 0x00;
+ u8 gate = hdev->pipes[pipe].gate;
+ u8 status = NFC_HCI_ANY_OK;
+ struct hci_create_pipe_resp *create_info;
+ struct hci_delete_pipe_noti *delete_info;
+ struct hci_all_pipe_cleared_noti *cleared_info;
pr_debug("from gate %x pipe %x cmd %x\n", gate, pipe, cmd);
switch (cmd) {
case NFC_HCI_ADM_NOTIFY_PIPE_CREATED:
if (skb->len != 5) {
- r = -EPROTO;
- break;
+ status = NFC_HCI_ANY_E_NOK;
+ goto exit;
}
+ create_info = (struct hci_create_pipe_resp *)skb->data;
- local_gate = skb->data[3];
- new_pipe = skb->data[4];
- nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK, NULL, 0);
-
- /* save the new created pipe and bind with local gate,
+ /* Save the new created pipe and bind with local gate,
* the description for skb->data[3] is destination gate id
* but since we received this cmd from host controller, we
* are the destination and it is our local gate
*/
- hdev->gate2pipe[local_gate] = new_pipe;
+ hdev->gate2pipe[create_info->dest_gate] = create_info->pipe;
+ hdev->pipes[create_info->pipe].gate = create_info->dest_gate;
+ hdev->pipes[create_info->pipe].dest_host =
+ create_info->src_host;
break;
case NFC_HCI_ANY_OPEN_PIPE:
- /* if the pipe is already created, we allow remote host to
- * open it
- */
- if (gate != 0xff)
- nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK,
- &gate_opened, 1);
+ if (gate == NFC_HCI_INVALID_GATE) {
+ status = NFC_HCI_ANY_E_NOK;
+ goto exit;
+ }
+ break;
+ case NFC_HCI_ADM_NOTIFY_PIPE_DELETED:
+ if (skb->len != 1) {
+ status = NFC_HCI_ANY_E_NOK;
+ goto exit;
+ }
+ delete_info = (struct hci_delete_pipe_noti *)skb->data;
+
+ hdev->pipes[delete_info->pipe].gate = NFC_HCI_INVALID_GATE;
+ hdev->pipes[delete_info->pipe].dest_host = NFC_HCI_INVALID_HOST;
break;
case NFC_HCI_ADM_NOTIFY_ALL_PIPE_CLEARED:
- nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK, NULL, 0);
+ if (skb->len != 1) {
+ status = NFC_HCI_ANY_E_NOK;
+ goto exit;
+ }
+ cleared_info = (struct hci_all_pipe_cleared_noti *)skb->data;
+
+ nfc_hci_reset_pipes_per_host(hdev, cleared_info->host);
break;
default:
pr_info("Discarded unknown cmd %x to gate %x\n", cmd, gate);
- r = -EINVAL;
break;
}
+ if (hdev->ops->cmd_received)
+ hdev->ops->cmd_received(hdev, pipe, cmd, skb);
+
+exit:
+ nfc_hci_hcp_message_tx(hdev, pipe, NFC_HCI_HCP_RESPONSE,
+ status, NULL, 0, NULL, NULL, 0);
+
kfree_skb(skb);
}
@@ -330,15 +377,15 @@
struct sk_buff *skb)
{
int r = 0;
- u8 gate = nfc_hci_pipe2gate(hdev, pipe);
+ u8 gate = hdev->pipes[pipe].gate;
- if (gate == 0xff) {
+ if (gate == NFC_HCI_INVALID_GATE) {
pr_err("Discarded event %x to unopened pipe %x\n", event, pipe);
goto exit;
}
if (hdev->ops->event_received) {
- r = hdev->ops->event_received(hdev, gate, event, skb);
+ r = hdev->ops->event_received(hdev, pipe, event, skb);
if (r <= 0)
goto exit_noskb;
}
@@ -573,7 +620,7 @@
if (hdev->ops->close)
hdev->ops->close(hdev);
- memset(hdev->gate2pipe, NFC_HCI_INVALID_PIPE, sizeof(hdev->gate2pipe));
+ nfc_hci_reset_pipes(hdev);
return 0;
}
@@ -932,7 +979,7 @@
nfc_set_drvdata(hdev->ndev, hdev);
- memset(hdev->gate2pipe, NFC_HCI_INVALID_PIPE, sizeof(hdev->gate2pipe));
+ nfc_hci_reset_pipes(hdev);
hdev->quirks = quirks;
diff --git a/net/nfc/hci/hci.h b/net/nfc/hci/hci.h
index c3d2e2c..ab4c8e8 100644
--- a/net/nfc/hci/hci.h
+++ b/net/nfc/hci/hci.h
@@ -65,6 +65,14 @@
u8 pipe;
} __packed;
+struct hci_delete_pipe_noti {
+ u8 pipe;
+} __packed;
+
+struct hci_all_pipe_cleared_noti {
+ u8 host;
+} __packed;
+
#define NFC_HCI_FRAGMENT 0x7f
#define HCP_HEADER(type, instr) ((((type) & 0x03) << 6) | ((instr) & 0x3f))
@@ -77,8 +85,6 @@
data_exchange_cb_t cb, void *cb_context,
unsigned long completion_delay);
-u8 nfc_hci_pipe2gate(struct nfc_hci_dev *hdev, u8 pipe);
-
void nfc_hci_hcp_message_rx(struct nfc_hci_dev *hdev, u8 pipe, u8 type,
u8 instruction, struct sk_buff *skb);
diff --git a/net/nfc/hci/hcp.c b/net/nfc/hci/hcp.c
index e9de151..1fe725d 100644
--- a/net/nfc/hci/hcp.c
+++ b/net/nfc/hci/hcp.c
@@ -124,17 +124,6 @@
return err;
}
-u8 nfc_hci_pipe2gate(struct nfc_hci_dev *hdev, u8 pipe)
-{
- int gate;
-
- for (gate = 0; gate < NFC_HCI_MAX_GATES; gate++)
- if (hdev->gate2pipe[gate] == pipe)
- return gate;
-
- return 0xff;
-}
-
/*
* Receive hcp message for pipe, with type and cmd.
* skb contains optional message data only.
diff --git a/net/openvswitch/vport-geneve.c b/net/openvswitch/vport-geneve.c
index 7ca3d45..bf02fd5 100644
--- a/net/openvswitch/vport-geneve.c
+++ b/net/openvswitch/vport-geneve.c
@@ -212,7 +212,7 @@
tun_key->ipv4_dst, tun_key->ipv4_tos,
tun_key->ipv4_ttl, df, sport, dport,
tun_key->tun_flags, vni, opts_len, opts,
- false);
+ !!(tun_key->tun_flags & TUNNEL_CSUM), false);
if (err < 0)
ip_rt_put(rt);
return err;
diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index 3cc983b..ff07d40 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -74,7 +74,7 @@
__be64 key;
__be16 flags;
- flags = TUNNEL_KEY;
+ flags = TUNNEL_KEY | (udp_hdr(skb)->check != 0 ? TUNNEL_CSUM : 0);
vxlan_port = vxlan_vport(vport);
if (vxlan_port->exts & VXLAN_F_GBP)
flags |= TUNNEL_VXLAN_OPT;
@@ -230,6 +230,7 @@
__be16 src_port;
__be16 df;
int err;
+ u32 vxflags;
if (unlikely(!OVS_CB(skb)->egress_tun_info)) {
err = -EINVAL;
@@ -251,11 +252,13 @@
src_port = udp_flow_src_port(net, skb, 0, 0, true);
md.vni = htonl(be64_to_cpu(tun_key->tun_id) << 8);
md.gbp = vxlan_ext_gbp(skb);
+ vxflags = vxlan_port->exts |
+ (tun_key->tun_flags & TUNNEL_CSUM ? VXLAN_F_UDP_CSUM : 0);
err = vxlan_xmit_skb(rt, skb, fl.saddr, tun_key->ipv4_dst,
tun_key->ipv4_tos, tun_key->ipv4_ttl, df,
src_port, dst_port,
- &md, false, vxlan_port->exts);
+ &md, false, vxflags);
if (err < 0)
ip_rt_put(rt);
return err;
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 7a57f66..899d031 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -713,7 +713,7 @@
config NET_ACT_CONNMARK
tristate "Netfilter Connection Mark Retriever"
depends on NET_CLS_ACT && NETFILTER && IP_NF_IPTABLES
- depends on NF_CONNTRACK_MARK
+ depends on NF_CONNTRACK && NF_CONNTRACK_MARK
---help---
Say Y here to allow retrieving of conn mark
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 9b05924..2a50f5c 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -1,7 +1,7 @@
/*
* net/sched/sch_fq.c Fair Queue Packet Scheduler (per flow pacing)
*
- * Copyright (C) 2013 Eric Dumazet <edumazet@google.com>
+ * Copyright (C) 2013-2015 Eric Dumazet <edumazet@google.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -471,7 +471,7 @@
goto out;
rate = q->flow_max_rate;
- if (skb->sk && skb->sk->sk_state != TCP_TIME_WAIT)
+ if (skb->sk)
rate = min(skb->sk->sk_pacing_rate, rate);
if (rate != ~0U) {
diff --git a/net/socket.c b/net/socket.c
index 3acd35f..3326d67 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -613,13 +613,6 @@
static inline int __sock_sendmsg_nosec(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size)
{
- struct sock_iocb *si = kiocb_to_siocb(iocb);
-
- si->sock = sock;
- si->scm = NULL;
- si->msg = msg;
- si->size = size;
-
return sock->ops->sendmsg(iocb, sock, msg, size);
}
@@ -635,11 +628,9 @@
size_t size, bool nosec)
{
struct kiocb iocb;
- struct sock_iocb siocb;
int ret;
init_sync_kiocb(&iocb, NULL);
- iocb.private = &siocb;
ret = nosec ? __sock_sendmsg_nosec(&iocb, sock, msg, size) :
__sock_sendmsg(&iocb, sock, msg, size);
if (-EIOCBQUEUED == ret)
@@ -756,14 +747,6 @@
static inline int __sock_recvmsg_nosec(struct kiocb *iocb, struct socket *sock,
struct msghdr *msg, size_t size, int flags)
{
- struct sock_iocb *si = kiocb_to_siocb(iocb);
-
- si->sock = sock;
- si->scm = NULL;
- si->msg = msg;
- si->size = size;
- si->flags = flags;
-
return sock->ops->recvmsg(iocb, sock, msg, size, flags);
}
@@ -779,11 +762,9 @@
size_t size, int flags)
{
struct kiocb iocb;
- struct sock_iocb siocb;
int ret;
init_sync_kiocb(&iocb, NULL);
- iocb.private = &siocb;
ret = __sock_recvmsg(&iocb, sock, msg, size, flags);
if (-EIOCBQUEUED == ret)
ret = wait_on_sync_kiocb(&iocb);
@@ -795,11 +776,9 @@
size_t size, int flags)
{
struct kiocb iocb;
- struct sock_iocb siocb;
int ret;
init_sync_kiocb(&iocb, NULL);
- iocb.private = &siocb;
ret = __sock_recvmsg_nosec(&iocb, sock, msg, size, flags);
if (-EIOCBQUEUED == ret)
ret = wait_on_sync_kiocb(&iocb);
@@ -866,14 +845,6 @@
return sock->ops->splice_read(sock, ppos, pipe, len, flags);
}
-static struct sock_iocb *alloc_sock_iocb(struct kiocb *iocb,
- struct sock_iocb *siocb)
-{
- siocb->kiocb = iocb;
- iocb->private = siocb;
- return siocb;
-}
-
static ssize_t do_sock_read(struct msghdr *msg, struct kiocb *iocb,
struct file *file, const struct iovec *iov,
unsigned long nr_segs)
@@ -893,7 +864,7 @@
static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
- struct sock_iocb siocb, *x;
+ struct msghdr msg;
if (pos != 0)
return -ESPIPE;
@@ -901,11 +872,7 @@
if (iocb->ki_nbytes == 0) /* Match SYS5 behaviour */
return 0;
-
- x = alloc_sock_iocb(iocb, &siocb);
- if (!x)
- return -ENOMEM;
- return do_sock_read(&x->async_msg, iocb, iocb->ki_filp, iov, nr_segs);
+ return do_sock_read(&msg, iocb, iocb->ki_filp, iov, nr_segs);
}
static ssize_t do_sock_write(struct msghdr *msg, struct kiocb *iocb,
@@ -929,16 +896,12 @@
static ssize_t sock_aio_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
- struct sock_iocb siocb, *x;
+ struct msghdr msg;
if (pos != 0)
return -ESPIPE;
- x = alloc_sock_iocb(iocb, &siocb);
- if (!x)
- return -ENOMEM;
-
- return do_sock_write(&x->async_msg, iocb, iocb->ki_filp, iov, nr_segs);
+ return do_sock_write(&msg, iocb, iocb->ki_filp, iov, nr_segs);
}
/*
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 8e1b102..526b6ed 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1445,7 +1445,6 @@
static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct msghdr *msg, size_t len)
{
- struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct sock *sk = sock->sk;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
@@ -1456,14 +1455,12 @@
unsigned int hash;
struct sk_buff *skb;
long timeo;
- struct scm_cookie tmp_scm;
+ struct scm_cookie scm;
int max_level;
int data_len = 0;
- if (NULL == siocb->scm)
- siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm, false);
+ err = scm_send(sock, msg, &scm, false);
if (err < 0)
return err;
@@ -1507,11 +1504,11 @@
if (skb == NULL)
goto out;
- err = unix_scm_to_skb(siocb->scm, skb, true);
+ err = unix_scm_to_skb(&scm, skb, true);
if (err < 0)
goto out_free;
max_level = err + 1;
- unix_get_secdata(siocb->scm, skb);
+ unix_get_secdata(&scm, skb);
skb_put(skb, len - data_len);
skb->data_len = data_len;
@@ -1606,7 +1603,7 @@
unix_state_unlock(other);
other->sk_data_ready(other);
sock_put(other);
- scm_destroy(siocb->scm);
+ scm_destroy(&scm);
return len;
out_unlock:
@@ -1616,7 +1613,7 @@
out:
if (other)
sock_put(other);
- scm_destroy(siocb->scm);
+ scm_destroy(&scm);
return err;
}
@@ -1628,21 +1625,18 @@
static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
struct msghdr *msg, size_t len)
{
- struct sock_iocb *siocb = kiocb_to_siocb(kiocb);
struct sock *sk = sock->sk;
struct sock *other = NULL;
int err, size;
struct sk_buff *skb;
int sent = 0;
- struct scm_cookie tmp_scm;
+ struct scm_cookie scm;
bool fds_sent = false;
int max_level;
int data_len;
- if (NULL == siocb->scm)
- siocb->scm = &tmp_scm;
wait_for_unix_gc();
- err = scm_send(sock, msg, siocb->scm, false);
+ err = scm_send(sock, msg, &scm, false);
if (err < 0)
return err;
@@ -1683,7 +1677,7 @@
goto out_err;
/* Only send the fds in the first buffer */
- err = unix_scm_to_skb(siocb->scm, skb, !fds_sent);
+ err = unix_scm_to_skb(&scm, skb, !fds_sent);
if (err < 0) {
kfree_skb(skb);
goto out_err;
@@ -1715,8 +1709,7 @@
sent += size;
}
- scm_destroy(siocb->scm);
- siocb->scm = NULL;
+ scm_destroy(&scm);
return sent;
@@ -1728,8 +1721,7 @@
send_sig(SIGPIPE, current, 0);
err = -EPIPE;
out_err:
- scm_destroy(siocb->scm);
- siocb->scm = NULL;
+ scm_destroy(&scm);
return sent ? : err;
}
@@ -1778,8 +1770,7 @@
struct msghdr *msg, size_t size,
int flags)
{
- struct sock_iocb *siocb = kiocb_to_siocb(iocb);
- struct scm_cookie tmp_scm;
+ struct scm_cookie scm;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
int noblock = flags & MSG_DONTWAIT;
@@ -1831,16 +1822,14 @@
if (sock_flag(sk, SOCK_RCVTSTAMP))
__sock_recv_timestamp(msg, sk, skb);
- if (!siocb->scm) {
- siocb->scm = &tmp_scm;
- memset(&tmp_scm, 0, sizeof(tmp_scm));
- }
- scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);
- unix_set_secdata(siocb->scm, skb);
+ memset(&scm, 0, sizeof(scm));
+
+ scm_set_cred(&scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);
+ unix_set_secdata(&scm, skb);
if (!(flags & MSG_PEEK)) {
if (UNIXCB(skb).fp)
- unix_detach_fds(siocb->scm, skb);
+ unix_detach_fds(&scm, skb);
sk_peek_offset_bwd(sk, skb->len);
} else {
@@ -1860,11 +1849,11 @@
sk_peek_offset_fwd(sk, size);
if (UNIXCB(skb).fp)
- siocb->scm->fp = scm_fp_dup(UNIXCB(skb).fp);
+ scm.fp = scm_fp_dup(UNIXCB(skb).fp);
}
err = (flags & MSG_TRUNC) ? skb->len - skip : size;
- scm_recv(sock, msg, siocb->scm, flags);
+ scm_recv(sock, msg, &scm, flags);
out_free:
skb_free_datagram(sk, skb);
@@ -1915,8 +1904,7 @@
struct msghdr *msg, size_t size,
int flags)
{
- struct sock_iocb *siocb = kiocb_to_siocb(iocb);
- struct scm_cookie tmp_scm;
+ struct scm_cookie scm;
struct sock *sk = sock->sk;
struct unix_sock *u = unix_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_un *, sunaddr, msg->msg_name);
@@ -1943,10 +1931,7 @@
* while sleeps in memcpy_tomsg
*/
- if (!siocb->scm) {
- siocb->scm = &tmp_scm;
- memset(&tmp_scm, 0, sizeof(tmp_scm));
- }
+ memset(&scm, 0, sizeof(scm));
err = mutex_lock_interruptible(&u->readlock);
if (unlikely(err)) {
@@ -2012,13 +1997,13 @@
if (check_creds) {
/* Never glue messages from different writers */
- if ((UNIXCB(skb).pid != siocb->scm->pid) ||
- !uid_eq(UNIXCB(skb).uid, siocb->scm->creds.uid) ||
- !gid_eq(UNIXCB(skb).gid, siocb->scm->creds.gid))
+ if ((UNIXCB(skb).pid != scm.pid) ||
+ !uid_eq(UNIXCB(skb).uid, scm.creds.uid) ||
+ !gid_eq(UNIXCB(skb).gid, scm.creds.gid))
break;
} else if (test_bit(SOCK_PASSCRED, &sock->flags)) {
/* Copy credentials */
- scm_set_cred(siocb->scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);
+ scm_set_cred(&scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);
check_creds = 1;
}
@@ -2045,7 +2030,7 @@
sk_peek_offset_bwd(sk, chunk);
if (UNIXCB(skb).fp)
- unix_detach_fds(siocb->scm, skb);
+ unix_detach_fds(&scm, skb);
if (unix_skb_len(skb))
break;
@@ -2053,13 +2038,13 @@
skb_unlink(skb, &sk->sk_receive_queue);
consume_skb(skb);
- if (siocb->scm->fp)
+ if (scm.fp)
break;
} else {
/* It is questionable, see note in unix_dgram_recvmsg.
*/
if (UNIXCB(skb).fp)
- siocb->scm->fp = scm_fp_dup(UNIXCB(skb).fp);
+ scm.fp = scm_fp_dup(UNIXCB(skb).fp);
sk_peek_offset_fwd(sk, chunk);
@@ -2068,7 +2053,7 @@
} while (size);
mutex_unlock(&u->readlock);
- scm_recv(sock, msg, siocb->scm, flags);
+ scm_recv(sock, msg, &scm, flags);
out:
return copied ? : err;
}