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-rw-r--r--drivers/char/agp/parisc-agp.c23
-rw-r--r--drivers/char/hvc_iucv.c259
-rw-r--r--drivers/char/hw_random/Kconfig14
-rw-r--r--drivers/char/hw_random/Makefile1
-rw-r--r--drivers/char/hw_random/timeriomem-rng.c151
-rw-r--r--drivers/char/pcmcia/synclink_cs.c18
-rw-r--r--drivers/char/random.c6
-rw-r--r--drivers/char/synclink.c18
-rw-r--r--drivers/char/synclink_gt.c18
-rw-r--r--drivers/char/synclinkmp.c18
-rw-r--r--drivers/char/tpm/tpm.c530
-rw-r--r--drivers/char/tpm/tpm.h142
-rw-r--r--drivers/char/tpm/tpm_atmel.c28
-rw-r--r--drivers/char/tpm/tpm_tis.c28
-rw-r--r--drivers/char/vc_screen.c16
-rw-r--r--drivers/char/vt.c5
16 files changed, 915 insertions, 360 deletions
diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index db60539bf67..699e3422ad9 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -359,9 +359,16 @@ fail:
return error;
}
-static struct device *next_device(struct klist_iter *i) {
- struct klist_node * n = klist_next(i);
- return n ? container_of(n, struct device, knode_parent) : NULL;
+static int
+find_quicksilver(struct device *dev, void *data)
+{
+ struct parisc_device **lba = data;
+ struct parisc_device *padev = to_parisc_device(dev);
+
+ if (IS_QUICKSILVER(padev))
+ *lba = padev;
+
+ return 0;
}
static int
@@ -372,8 +379,6 @@ parisc_agp_init(void)
int err = -1;
struct parisc_device *sba = NULL, *lba = NULL;
struct lba_device *lbadev = NULL;
- struct device *dev = NULL;
- struct klist_iter i;
if (!sba_list)
goto out;
@@ -386,13 +391,7 @@ parisc_agp_init(void)
}
/* Now search our Pluto for our precious AGP device... */
- klist_iter_init(&sba->dev.klist_children, &i);
- while ((dev = next_device(&i))) {
- struct parisc_device *padev = to_parisc_device(dev);
- if (IS_QUICKSILVER(padev))
- lba = padev;
- }
- klist_iter_exit(&i);
+ device_for_each_child(&sba->dev, &lba, find_quicksilver);
if (!lba) {
printk(KERN_INFO DRVPFX "No AGP devices found.\n");
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index a53496828b7..54481a88776 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -13,10 +13,11 @@
#include <linux/types.h>
#include <asm/ebcdic.h>
+#include <linux/ctype.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/mempool.h>
-#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/tty.h>
#include <linux/wait.h>
#include <net/iucv/iucv.h>
@@ -95,6 +96,12 @@ static unsigned long hvc_iucv_devices = 1;
/* Array of allocated hvc iucv tty lines... */
static struct hvc_iucv_private *hvc_iucv_table[MAX_HVC_IUCV_LINES];
#define IUCV_HVC_CON_IDX (0)
+/* List of z/VM user ID filter entries (struct iucv_vmid_filter) */
+#define MAX_VMID_FILTER (500)
+static size_t hvc_iucv_filter_size;
+static void *hvc_iucv_filter;
+static const char *hvc_iucv_filter_string;
+static DEFINE_RWLOCK(hvc_iucv_filter_lock);
/* Kmem cache and mempool for iucv_tty_buffer elements */
static struct kmem_cache *hvc_iucv_buffer_cache;
@@ -618,6 +625,27 @@ static void hvc_iucv_notifier_del(struct hvc_struct *hp, int id)
}
/**
+ * hvc_iucv_filter_connreq() - Filter connection request based on z/VM user ID
+ * @ipvmid: Originating z/VM user ID (right padded with blanks)
+ *
+ * Returns 0 if the z/VM user ID @ipvmid is allowed to connection, otherwise
+ * non-zero.
+ */
+static int hvc_iucv_filter_connreq(u8 ipvmid[8])
+{
+ size_t i;
+
+ /* Note: default policy is ACCEPT if no filter is set */
+ if (!hvc_iucv_filter_size)
+ return 0;
+
+ for (i = 0; i < hvc_iucv_filter_size; i++)
+ if (0 == memcmp(ipvmid, hvc_iucv_filter + (8 * i), 8))
+ return 0;
+ return 1;
+}
+
+/**
* hvc_iucv_path_pending() - IUCV handler to process a connection request.
* @path: Pending path (struct iucv_path)
* @ipvmid: z/VM system identifier of originator
@@ -641,6 +669,7 @@ static int hvc_iucv_path_pending(struct iucv_path *path,
{
struct hvc_iucv_private *priv;
u8 nuser_data[16];
+ u8 vm_user_id[9];
int i, rc;
priv = NULL;
@@ -653,6 +682,20 @@ static int hvc_iucv_path_pending(struct iucv_path *path,
if (!priv)
return -ENODEV;
+ /* Enforce that ipvmid is allowed to connect to us */
+ read_lock(&hvc_iucv_filter_lock);
+ rc = hvc_iucv_filter_connreq(ipvmid);
+ read_unlock(&hvc_iucv_filter_lock);
+ if (rc) {
+ iucv_path_sever(path, ipuser);
+ iucv_path_free(path);
+ memcpy(vm_user_id, ipvmid, 8);
+ vm_user_id[8] = 0;
+ pr_info("A connection request from z/VM user ID %s "
+ "was refused\n", vm_user_id);
+ return 0;
+ }
+
spin_lock(&priv->lock);
/* If the terminal is already connected or being severed, then sever
@@ -877,6 +920,171 @@ static int __init hvc_iucv_alloc(int id, unsigned int is_console)
}
/**
+ * hvc_iucv_parse_filter() - Parse filter for a single z/VM user ID
+ * @filter: String containing a comma-separated list of z/VM user IDs
+ */
+static const char *hvc_iucv_parse_filter(const char *filter, char *dest)
+{
+ const char *nextdelim, *residual;
+ size_t len;
+
+ nextdelim = strchr(filter, ',');
+ if (nextdelim) {
+ len = nextdelim - filter;
+ residual = nextdelim + 1;
+ } else {
+ len = strlen(filter);
+ residual = filter + len;
+ }
+
+ if (len == 0)
+ return ERR_PTR(-EINVAL);
+
+ /* check for '\n' (if called from sysfs) */
+ if (filter[len - 1] == '\n')
+ len--;
+
+ if (len > 8)
+ return ERR_PTR(-EINVAL);
+
+ /* pad with blanks and save upper case version of user ID */
+ memset(dest, ' ', 8);
+ while (len--)
+ dest[len] = toupper(filter[len]);
+ return residual;
+}
+
+/**
+ * hvc_iucv_setup_filter() - Set up z/VM user ID filter
+ * @filter: String consisting of a comma-separated list of z/VM user IDs
+ *
+ * The function parses the @filter string and creates an array containing
+ * the list of z/VM user ID filter entries.
+ * Return code 0 means success, -EINVAL if the filter is syntactically
+ * incorrect, -ENOMEM if there was not enough memory to allocate the
+ * filter list array, or -ENOSPC if too many z/VM user IDs have been specified.
+ */
+static int hvc_iucv_setup_filter(const char *val)
+{
+ const char *residual;
+ int err;
+ size_t size, count;
+ void *array, *old_filter;
+
+ count = strlen(val);
+ if (count == 0 || (count == 1 && val[0] == '\n')) {
+ size = 0;
+ array = NULL;
+ goto out_replace_filter; /* clear filter */
+ }
+
+ /* count user IDs in order to allocate sufficient memory */
+ size = 1;
+ residual = val;
+ while ((residual = strchr(residual, ',')) != NULL) {
+ residual++;
+ size++;
+ }
+
+ /* check if the specified list exceeds the filter limit */
+ if (size > MAX_VMID_FILTER)
+ return -ENOSPC;
+
+ array = kzalloc(size * 8, GFP_KERNEL);
+ if (!array)
+ return -ENOMEM;
+
+ count = size;
+ residual = val;
+ while (*residual && count) {
+ residual = hvc_iucv_parse_filter(residual,
+ array + ((size - count) * 8));
+ if (IS_ERR(residual)) {
+ err = PTR_ERR(residual);
+ kfree(array);
+ goto out_err;
+ }
+ count--;
+ }
+
+out_replace_filter:
+ write_lock_bh(&hvc_iucv_filter_lock);
+ old_filter = hvc_iucv_filter;
+ hvc_iucv_filter_size = size;
+ hvc_iucv_filter = array;
+ write_unlock_bh(&hvc_iucv_filter_lock);
+ kfree(old_filter);
+
+ err = 0;
+out_err:
+ return err;
+}
+
+/**
+ * param_set_vmidfilter() - Set z/VM user ID filter parameter
+ * @val: String consisting of a comma-separated list of z/VM user IDs
+ * @kp: Kernel parameter pointing to hvc_iucv_filter array
+ *
+ * The function sets up the z/VM user ID filter specified as comma-separated
+ * list of user IDs in @val.
+ * Note: If it is called early in the boot process, @val is stored and
+ * parsed later in hvc_iucv_init().
+ */
+static int param_set_vmidfilter(const char *val, struct kernel_param *kp)
+{
+ int rc;
+
+ if (!MACHINE_IS_VM || !hvc_iucv_devices)
+ return -ENODEV;
+
+ if (!val)
+ return -EINVAL;
+
+ rc = 0;
+ if (slab_is_available())
+ rc = hvc_iucv_setup_filter(val);
+ else
+ hvc_iucv_filter_string = val; /* defer... */
+ return rc;
+}
+
+/**
+ * param_get_vmidfilter() - Get z/VM user ID filter
+ * @buffer: Buffer to store z/VM user ID filter,
+ * (buffer size assumption PAGE_SIZE)
+ * @kp: Kernel parameter pointing to the hvc_iucv_filter array
+ *
+ * The function stores the filter as a comma-separated list of z/VM user IDs
+ * in @buffer. Typically, sysfs routines call this function for attr show.
+ */
+static int param_get_vmidfilter(char *buffer, struct kernel_param *kp)
+{
+ int rc;
+ size_t index, len;
+ void *start, *end;
+
+ if (!MACHINE_IS_VM || !hvc_iucv_devices)
+ return -ENODEV;
+
+ rc = 0;
+ read_lock_bh(&hvc_iucv_filter_lock);
+ for (index = 0; index < hvc_iucv_filter_size; index++) {
+ start = hvc_iucv_filter + (8 * index);
+ end = memchr(start, ' ', 8);
+ len = (end) ? end - start : 8;
+ memcpy(buffer + rc, start, len);
+ rc += len;
+ buffer[rc++] = ',';
+ }
+ read_unlock_bh(&hvc_iucv_filter_lock);
+ if (rc)
+ buffer[--rc] = '\0'; /* replace last comma and update rc */
+ return rc;
+}
+
+#define param_check_vmidfilter(name, p) __param_check(name, p, void)
+
+/**
* hvc_iucv_init() - z/VM IUCV HVC device driver initialization
*/
static int __init hvc_iucv_init(void)
@@ -884,24 +1092,53 @@ static int __init hvc_iucv_init(void)
int rc;
unsigned int i;
+ if (!hvc_iucv_devices)
+ return -ENODEV;
+
if (!MACHINE_IS_VM) {
- pr_info("The z/VM IUCV HVC device driver cannot "
+ pr_notice("The z/VM IUCV HVC device driver cannot "
"be used without z/VM\n");
- return -ENODEV;
+ rc = -ENODEV;
+ goto out_error;
}
- if (!hvc_iucv_devices)
- return -ENODEV;
+ if (hvc_iucv_devices > MAX_HVC_IUCV_LINES) {
+ pr_err("%lu is not a valid value for the hvc_iucv= "
+ "kernel parameter\n", hvc_iucv_devices);
+ rc = -EINVAL;
+ goto out_error;
+ }
- if (hvc_iucv_devices > MAX_HVC_IUCV_LINES)
- return -EINVAL;
+ /* parse hvc_iucv_allow string and create z/VM user ID filter list */
+ if (hvc_iucv_filter_string) {
+ rc = hvc_iucv_setup_filter(hvc_iucv_filter_string);
+ switch (rc) {
+ case 0:
+ break;
+ case -ENOMEM:
+ pr_err("Allocating memory failed with "
+ "reason code=%d\n", 3);
+ goto out_error;
+ case -EINVAL:
+ pr_err("hvc_iucv_allow= does not specify a valid "
+ "z/VM user ID list\n");
+ goto out_error;
+ case -ENOSPC:
+ pr_err("hvc_iucv_allow= specifies too many "
+ "z/VM user IDs\n");
+ goto out_error;
+ default:
+ goto out_error;
+ }
+ }
hvc_iucv_buffer_cache = kmem_cache_create(KMSG_COMPONENT,
sizeof(struct iucv_tty_buffer),
0, 0, NULL);
if (!hvc_iucv_buffer_cache) {
pr_err("Allocating memory failed with reason code=%d\n", 1);
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out_error;
}
hvc_iucv_mempool = mempool_create_slab_pool(MEMPOOL_MIN_NR,
@@ -909,7 +1146,8 @@ static int __init hvc_iucv_init(void)
if (!hvc_iucv_mempool) {
pr_err("Allocating memory failed with reason code=%d\n", 2);
kmem_cache_destroy(hvc_iucv_buffer_cache);
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out_error;
}
/* register the first terminal device as console
@@ -953,6 +1191,8 @@ out_error_hvc:
out_error_memory:
mempool_destroy(hvc_iucv_mempool);
kmem_cache_destroy(hvc_iucv_buffer_cache);
+out_error:
+ hvc_iucv_devices = 0; /* ensure that we do not provide any device */
return rc;
}
@@ -968,3 +1208,4 @@ static int __init hvc_iucv_config(char *val)
device_initcall(hvc_iucv_init);
__setup("hvc_iucv=", hvc_iucv_config);
+core_param(hvc_iucv_allow, hvc_iucv_filter, vmidfilter, 0640);
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 8822eca58ff..5fab6470f4b 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -20,6 +20,20 @@ config HW_RANDOM
If unsure, say Y.
+config HW_RANDOM_TIMERIOMEM
+ tristate "Timer IOMEM HW Random Number Generator support"
+ depends on HW_RANDOM && HAS_IOMEM
+ ---help---
+ This driver provides kernel-side support for a generic Random
+ Number Generator used by reading a 'dumb' iomem address that
+ is to be read no faster than, for example, once a second;
+ the default FPGA bitstream on the TS-7800 has such functionality.
+
+ To compile this driver as a module, choose M here: the
+ module will be called timeriomem-rng.
+
+ If unsure, say Y.
+
config HW_RANDOM_INTEL
tristate "Intel HW Random Number Generator support"
depends on HW_RANDOM && (X86 || IA64) && PCI
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index b6effb7522c..e81d21a5f28 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -4,6 +4,7 @@
obj-$(CONFIG_HW_RANDOM) += rng-core.o
rng-core-y := core.o
+obj-$(CONFIG_HW_RANDOM_TIMERIOMEM) += timeriomem-rng.o
obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o
obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o
obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
new file mode 100644
index 00000000000..10ad41be589
--- /dev/null
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -0,0 +1,151 @@
+/*
+ * drivers/char/hw_random/timeriomem-rng.c
+ *
+ * Copyright (C) 2009 Alexander Clouter <alex@digriz.org.uk>
+ *
+ * Derived from drivers/char/hw_random/omap-rng.c
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Overview:
+ * This driver is useful for platforms that have an IO range that provides
+ * periodic random data from a single IO memory address. All the platform
+ * has to do is provide the address and 'wait time' that new data becomes
+ * available.
+ *
+ * TODO: add support for reading sizes other than 32bits and masking
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/hw_random.h>
+#include <linux/io.h>
+#include <linux/timeriomem-rng.h>
+#include <linux/jiffies.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+
+static struct timeriomem_rng_data *timeriomem_rng_data;
+
+static void timeriomem_rng_trigger(unsigned long);
+static DEFINE_TIMER(timeriomem_rng_timer, timeriomem_rng_trigger, 0, 0);
+
+/*
+ * have data return 1, however return 0 if we have nothing
+ */
+static int timeriomem_rng_data_present(struct hwrng *rng, int wait)
+{
+ if (rng->priv == 0)
+ return 1;
+
+ if (!wait || timeriomem_rng_data->present)
+ return timeriomem_rng_data->present;
+
+ wait_for_completion(&timeriomem_rng_data->completion);
+
+ return 1;
+}
+
+static int timeriomem_rng_data_read(struct hwrng *rng, u32 *data)
+{
+ unsigned long cur;
+ s32 delay;
+
+ *data = readl(timeriomem_rng_data->address);
+
+ if (rng->priv != 0) {
+ cur = jiffies;
+
+ delay = cur - timeriomem_rng_timer.expires;
+ delay = rng->priv - (delay % rng->priv);
+
+ timeriomem_rng_timer.expires = cur + delay;
+ timeriomem_rng_data->present = 0;
+
+ init_completion(&timeriomem_rng_data->completion);
+ add_timer(&timeriomem_rng_timer);
+ }
+
+ return 4;
+}
+
+static void timeriomem_rng_trigger(unsigned long dummy)
+{
+ timeriomem_rng_data->present = 1;
+ complete(&timeriomem_rng_data->completion);
+}
+
+static struct hwrng timeriomem_rng_ops = {
+ .name = "timeriomem",
+ .data_present = timeriomem_rng_data_present,
+ .data_read = timeriomem_rng_data_read,
+ .priv = 0,
+};
+
+static int __init timeriomem_rng_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ timeriomem_rng_data = pdev->dev.platform_data;
+
+ if (timeriomem_rng_data->period != 0
+ && usecs_to_jiffies(timeriomem_rng_data->period) > 0) {
+ timeriomem_rng_timer.expires = jiffies;
+
+ timeriomem_rng_ops.priv = usecs_to_jiffies(
+ timeriomem_rng_data->period);
+ }
+ timeriomem_rng_data->present = 1;
+
+ ret = hwrng_register(&timeriomem_rng_ops);
+ if (ret) {
+ dev_err(&pdev->dev, "problem registering\n");
+ return ret;
+ }
+
+ dev_info(&pdev->dev, "32bits from 0x%p @ %dus\n",
+ timeriomem_rng_data->address,
+ timeriomem_rng_data->period);
+
+ return 0;
+}
+
+static int __devexit timeriomem_rng_remove(struct platform_device *pdev)
+{
+ del_timer_sync(&timeriomem_rng_timer);
+ hwrng_unregister(&timeriomem_rng_ops);
+
+ return 0;
+}
+
+static struct platform_driver timeriomem_rng_driver = {
+ .driver = {
+ .name = "timeriomem_rng",
+ .owner = THIS_MODULE,
+ },
+ .probe = timeriomem_rng_probe,
+ .remove = __devexit_p(timeriomem_rng_remove),
+};
+
+static int __init timeriomem_rng_init(void)
+{
+ return platform_driver_register(&timeriomem_rng_driver);
+}
+
+static void __exit timeriomem_rng_exit(void)
+{
+ platform_driver_unregister(&timeriomem_rng_driver);
+}
+
+module_init(timeriomem_rng_init);
+module_exit(timeriomem_rng_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexander Clouter <alex@digriz.org.uk>");
+MODULE_DESCRIPTION("Timer IOMEM H/W RNG driver");
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index dc073e167ab..5608a1e5a3b 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -4311,10 +4311,17 @@ static void hdlcdev_rx(MGSLPC_INFO *info, char *buf, int size)
dev->stats.rx_bytes += size;
netif_rx(skb);
-
- dev->last_rx = jiffies;
}
+static const struct net_device_ops hdlcdev_ops = {
+ .ndo_open = hdlcdev_open,
+ .ndo_stop = hdlcdev_close,
+ .ndo_change_mtu = hdlc_change_mtu,
+ .ndo_start_xmit = hdlc_start_xmit,
+ .ndo_do_ioctl = hdlcdev_ioctl,
+ .ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
/**
* called by device driver when adding device instance
* do generic HDLC initialization
@@ -4341,11 +4348,8 @@ static int hdlcdev_init(MGSLPC_INFO *info)
dev->irq = info->irq_level;
/* network layer callbacks and settings */
- dev->do_ioctl = hdlcdev_ioctl;
- dev->open = hdlcdev_open;
- dev->stop = hdlcdev_close;
- dev->tx_timeout = hdlcdev_tx_timeout;
- dev->watchdog_timeo = 10*HZ;
+ dev->netdev_ops = &hdlcdev_ops;
+ dev->watchdog_timeo = 10 * HZ;
dev->tx_queue_len = 50;
/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 7c13581ca9c..7c43ae782b2 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -241,6 +241,10 @@
#include <linux/percpu.h>
#include <linux/cryptohash.h>
+#ifdef CONFIG_GENERIC_HARDIRQS
+# include <linux/irq.h>
+#endif
+
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/irq.h>
@@ -558,7 +562,7 @@ struct timer_rand_state {
unsigned dont_count_entropy:1;
};
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
static struct timer_rand_state *irq_timer_state[NR_IRQS];
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index b8063d4cad3..0057a8f58cb 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -8007,10 +8007,17 @@ static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)
dev->stats.rx_bytes += size;
netif_rx(skb);
-
- dev->last_rx = jiffies;
}
+static const struct net_device_ops hdlcdev_ops = {
+ .ndo_open = hdlcdev_open,
+ .ndo_stop = hdlcdev_close,
+ .ndo_change_mtu = hdlc_change_mtu,
+ .ndo_start_xmit = hdlc_start_xmit,
+ .ndo_do_ioctl = hdlcdev_ioctl,
+ .ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
/**
* called by device driver when adding device instance
* do generic HDLC initialization
@@ -8038,11 +8045,8 @@ static int hdlcdev_init(struct mgsl_struct *info)
dev->dma = info->dma_level;
/* network layer callbacks and settings */
- dev->do_ioctl = hdlcdev_ioctl;
- dev->open = hdlcdev_open;
- dev->stop = hdlcdev_close;
- dev->tx_timeout = hdlcdev_tx_timeout;
- dev->watchdog_timeo = 10*HZ;
+ dev->netdev_ops = &hdlcdev_ops;
+ dev->watchdog_timeo = 10 * HZ;
dev->tx_queue_len = 50;
/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index f329f459817..efb3dc928a4 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -1763,10 +1763,17 @@ static void hdlcdev_rx(struct slgt_info *info, char *buf, int size)
dev->stats.rx_bytes += size;
netif_rx(skb);
-
- dev->last_rx = jiffies;
}
+static const struct net_device_ops hdlcdev_ops = {
+ .ndo_open = hdlcdev_open,
+ .ndo_stop = hdlcdev_close,
+ .ndo_change_mtu = hdlc_change_mtu,
+ .ndo_start_xmit = hdlc_start_xmit,
+ .ndo_do_ioctl = hdlcdev_ioctl,
+ .ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
/**
* called by device driver when adding device instance
* do generic HDLC initialization
@@ -1794,11 +1801,8 @@ static int hdlcdev_init(struct slgt_info *info)
dev->irq = info->irq_level;
/* network layer callbacks and settings */
- dev->do_ioctl = hdlcdev_ioctl;
- dev->open = hdlcdev_open;
- dev->stop = hdlcdev_close;
- dev->tx_timeout = hdlcdev_tx_timeout;
- dev->watchdog_timeo = 10*HZ;
+ dev->netdev_ops = &hdlcdev_ops;
+ dev->watchdog_timeo = 10 * HZ;
dev->tx_queue_len = 50;
/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 7b0c5b2dd26..8eb6c89a980 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -1907,10 +1907,17 @@ static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
dev->stats.rx_bytes += size;
netif_rx(skb);
-
- dev->last_rx = jiffies;
}
+static const struct net_device_ops hdlcdev_ops = {
+ .ndo_open = hdlcdev_open,
+ .ndo_stop = hdlcdev_close,
+ .ndo_change_mtu = hdlc_change_mtu,
+ .ndo_start_xmit = hdlc_start_xmit,
+ .ndo_do_ioctl = hdlcdev_ioctl,
+ .ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
/**
* called by device driver when adding device instance
* do generic HDLC initialization
@@ -1938,11 +1945,8 @@ static int hdlcdev_init(SLMP_INFO *info)
dev->irq = info->irq_level;
/* network layer callbacks and settings */
- dev->do_ioctl = hdlcdev_ioctl;
- dev->open = hdlcdev_open;
- dev->stop = hdlcdev_close;
- dev->tx_timeout = hdlcdev_tx_timeout;
- dev->watchdog_timeo = 10*HZ;
+ dev->netdev_ops = &hdlcdev_ops;
+ dev->watchdog_timeo = 10 * HZ;
dev->tx_queue_len = 50;
/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 9c47dc48c9f..ccdd828adce 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -429,134 +429,148 @@ out:
#define TPM_DIGEST_SIZE 20
#define TPM_ERROR_SIZE 10
#define TPM_RET_CODE_IDX 6
-#define TPM_GET_CAP_RET_SIZE_IDX 10
-#define TPM_GET_CAP_RET_UINT32_1_IDX 14
-#define TPM_GET_CAP_RET_UINT32_2_IDX 18
-#define TPM_GET_CAP_RET_UINT32_3_IDX 22
-#define TPM_GET_CAP_RET_UINT32_4_IDX 26
-#define TPM_GET_CAP_PERM_DISABLE_IDX 16
-#define TPM_GET_CAP_PERM_INACTIVE_IDX 18
-#define TPM_GET_CAP_RET_BOOL_1_IDX 14
-#define TPM_GET_CAP_TEMP_INACTIVE_IDX 16
-
-#define TPM_CAP_IDX 13
-#define TPM_CAP_SUBCAP_IDX 21
enum tpm_capabilities {
- TPM_CAP_FLAG = 4,
- TPM_CAP_PROP = 5,
+ TPM_CAP_FLAG = cpu_to_be32(4),
+ TPM_CAP_PROP = cpu_to_be32(5),
+ CAP_VERSION_1_1 = cpu_to_be32(0x06),
+ CAP_VERSION_1_2 = cpu_to_be32(0x1A)
};
enum tpm_sub_capabilities {
- TPM_CAP_PROP_PCR = 0x1,
- TPM_CAP_PROP_MANUFACTURER = 0x3,
- TPM_CAP_FLAG_PERM = 0x8,
- TPM_CAP_FLAG_VOL = 0x9,
- TPM_CAP_PROP_OWNER = 0x11,
- TPM_CAP_PROP_TIS_TIMEOUT = 0x15,
- TPM_CAP_PROP_TIS_DURATION = 0x20,
-};
+ TPM_CAP_PROP_PCR = cpu_to_be32(0x101),
+ TPM_CAP_PROP_MANUFACTURER = cpu_to_be32(0x103),
+ TPM_CAP_FLAG_PERM = cpu_to_be32(0x108),
+ TPM_CAP_FLAG_VOL = cpu_to_be32(0x109),
+ TPM_CAP_PROP_OWNER = cpu_to_be32(0x111),
+ TPM_CAP_PROP_TIS_TIMEOUT = cpu_to_be32(0x115),
+ TPM_CAP_PROP_TIS_DURATION = cpu_to_be32(0x120),
-/*
- * This is a semi generic GetCapability command for use
- * with the capability type TPM_CAP_PROP or TPM_CAP_FLAG
- * and their associated sub_capabilities.
- */
-
-static const u8 tpm_cap[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 22, /* length */
- 0, 0, 0, 101, /* TPM_ORD_GetCapability */
- 0, 0, 0, 0, /* TPM_CAP_<TYPE> */
- 0, 0, 0, 4, /* TPM_CAP_SUB_<TYPE> size */
- 0, 0, 1, 0 /* TPM_CAP_SUB_<TYPE> */
};
-static ssize_t transmit_cmd(struct tpm_chip *chip, u8 *data, int len,
- char *desc)
+static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
+ int len, const char *desc)
{
int err;
- len = tpm_transmit(chip, data, len);
+ len = tpm_transmit(chip,(u8 *) cmd, len);
if (len < 0)
return len;
if (len == TPM_ERROR_SIZE) {
- err = be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX)));
+ err = be32_to_cpu(cmd->header.out.return_code);
dev_dbg(chip->dev, "A TPM error (%d) occurred %s\n", err, desc);
return err;
}
return 0;
}
+#define TPM_INTERNAL_RESULT_SIZE 200
+#define TPM_TAG_RQU_COMMAND cpu_to_be16(193)
+#define TPM_ORD_GET_CAP cpu_to_be32(101)
+
+static const struct tpm_input_header tpm_getcap_header = {
+ .tag = TPM_TAG_RQU_COMMAND,
+ .length = cpu_to_be32(22),
+ .ordinal = TPM_ORD_GET_CAP
+};
+
+ssize_t tpm_getcap(struct device *dev, __be32 subcap_id, cap_t *cap,
+ const char *desc)
+{
+ struct tpm_cmd_t tpm_cmd;
+ int rc;
+ struct tpm_chip *chip = dev_get_drvdata(dev);
+
+ tpm_cmd.header.in = tpm_getcap_header;
+ if (subcap_id == CAP_VERSION_1_1 || subcap_id == CAP_VERSION_1_2) {
+ tpm_cmd.params.getcap_in.cap = subcap_id;
+ /*subcap field not necessary */
+ tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(0);
+ tpm_cmd.header.in.length -= cpu_to_be32(sizeof(__be32));
+ } else {
+ if (subcap_id == TPM_CAP_FLAG_PERM ||
+ subcap_id == TPM_CAP_FLAG_VOL)
+ tpm_cmd.params.getcap_in.cap = TPM_CAP_FLAG;
+ else
+ tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+ tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+ tpm_cmd.params.getcap_in.subcap = subcap_id;
+ }
+ rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, desc);
+ if (!rc)
+ *cap = tpm_cmd.params.getcap_out.cap;
+ return rc;
+}
+
void tpm_gen_interrupt(struct tpm_chip *chip)
{
- u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)];
+ struct tpm_cmd_t tpm_cmd;
ssize_t rc;
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT;
+ tpm_cmd.header.in = tpm_getcap_header;
+ tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+ tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+ tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
- rc = transmit_cmd(chip, data, sizeof(data),
+ rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
"attempting to determine the timeouts");
}
EXPORT_SYMBOL_GPL(tpm_gen_interrupt);
void tpm_get_timeouts(struct tpm_chip *chip)
{
- u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)];
+ struct tpm_cmd_t tpm_cmd;
+ struct timeout_t *timeout_cap;
+ struct duration_t *duration_cap;
ssize_t rc;
u32 timeout;
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT;
+ tpm_cmd.header.in = tpm_getcap_header;
+ tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+ tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+ tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
- rc = transmit_cmd(chip, data, sizeof(data),
+ rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
"attempting to determine the timeouts");
if (rc)
goto duration;
- if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX)))
+ if (be32_to_cpu(tpm_cmd.header.out.length)
!= 4 * sizeof(u32))
goto duration;
+ timeout_cap = &tpm_cmd.params.getcap_out.cap.timeout;
/* Don't overwrite default if value is 0 */
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)));
+ timeout = be32_to_cpu(timeout_cap->a);
if (timeout)
chip->vendor.timeout_a = usecs_to_jiffies(timeout);
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX)));
+ timeout = be32_to_cpu(timeout_cap->b);
if (timeout)
chip->vendor.timeout_b = usecs_to_jiffies(timeout);
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX)));
+ timeout = be32_to_cpu(timeout_cap->c);
if (timeout)
chip->vendor.timeout_c = usecs_to_jiffies(timeout);
- timeout =
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_4_IDX)));
+ timeout = be32_to_cpu(timeout_cap->d);
if (timeout)
chip->vendor.timeout_d = usecs_to_jiffies(timeout);
duration:
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_DURATION;
+ tpm_cmd.header.in = tpm_getcap_header;
+ tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+ tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+ tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_DURATION;
- rc = transmit_cmd(chip, data, sizeof(data),
+ rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
"attempting to determine the durations");
if (rc)
return;
- if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX)))
+ if (be32_to_cpu(tpm_cmd.header.out.return_code)
!= 3 * sizeof(u32))
return;
-
+ duration_cap = &tpm_cmd.params.getcap_out.cap.duration;
chip->vendor.duration[TPM_SHORT] =
- usecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
- TPM_GET_CAP_RET_UINT32_1_IDX))));
+ usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_short));
/* The Broadcom BCM0102 chipset in a Dell Latitude D820 gets the above
* value wrong and apparently reports msecs rather than usecs. So we
* fix up the resulting too-small TPM_SHORT value to make things work.
@@ -565,13 +579,9 @@ duration:
chip->vendor.duration[TPM_SHORT] = HZ;
chip->vendor.duration[TPM_MEDIUM] =
- usecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
- TPM_GET_CAP_RET_UINT32_2_IDX))));
+ usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_medium));
chip->vendor.duration[TPM_LONG] =
- usecs_to_jiffies(be32_to_cpu
- (*((__be32 *) (data +
- TPM_GET_CAP_RET_UINT32_3_IDX))));
+ usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_long));
}
EXPORT_SYMBOL_GPL(tpm_get_timeouts);
@@ -587,36 +597,18 @@ void tpm_continue_selftest(struct tpm_chip *chip)
}
EXPORT_SYMBOL_GPL(tpm_continue_selftest);
-#define TPM_INTERNAL_RESULT_SIZE 200
-
ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr,
char *buf)
{
- u8 *data;
+ cap_t cap;
ssize_t rc;
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_FLAG;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM;
-
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
- "attemtping to determine the permanent enabled state");
- if (rc) {
- kfree(data);
+ rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
+ "attempting to determine the permanent enabled state");
+ if (rc)
return 0;
- }
-
- rc = sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_DISABLE_IDX]);
- kfree(data);
+ rc = sprintf(buf, "%d\n", !cap.perm_flags.disable);
return rc;
}
EXPORT_SYMBOL_GPL(tpm_show_enabled);
@@ -624,31 +616,15 @@ EXPORT_SYMBOL_GPL(tpm_show_enabled);
ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr,
char *buf)
{
- u8 *data;
+ cap_t cap;
ssize_t rc;
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_FLAG;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM;
-
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
- "attemtping to determine the permanent active state");
- if (rc) {
- kfree(data);
+ rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
+ "attempting to determine the permanent active state");
+ if (rc)
return 0;
- }
- rc = sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_INACTIVE_IDX]);
-
- kfree(data);
+ rc = sprintf(buf, "%d\n", !cap.perm_flags.deactivated);
return rc;
}
EXPORT_SYMBOL_GPL(tpm_show_active);
@@ -656,31 +632,15 @@ EXPORT_SYMBOL_GPL(tpm_show_active);
ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr,
char *buf)
{
- u8 *data;
+ cap_t cap;
ssize_t rc;
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_OWNER;
-
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
- "attempting to determine the owner state");
- if (rc) {
- kfree(data);
+ rc = tpm_getcap(dev, TPM_CAP_PROP_OWNER, &cap,
+ "attempting to determine the owner state");
+ if (rc)
return 0;
- }
-
- rc = sprintf(buf, "%d\n", data[TPM_GET_CAP_RET_BOOL_1_IDX]);
- kfree(data);
+ rc = sprintf(buf, "%d\n", cap.owned);
return rc;
}
EXPORT_SYMBOL_GPL(tpm_show_owned);
@@ -688,116 +648,180 @@ EXPORT_SYMBOL_GPL(tpm_show_owned);
ssize_t tpm_show_temp_deactivated(struct device * dev,
struct device_attribute * attr, char *buf)
{
- u8 *data;
+ cap_t cap;
ssize_t rc;
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
+ rc = tpm_getcap(dev, TPM_CAP_FLAG_VOL, &cap,
+ "attempting to determine the temporary state");
+ if (rc)
+ return 0;
- data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
+ rc = sprintf(buf, "%d\n", cap.stclear_flags.deactivated);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_FLAG;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_VOL;
+/*
+ * tpm_chip_find_get - return tpm_chip for given chip number
+ */
+static struct tpm_chip *tpm_chip_find_get(int chip_num)
+{
+ struct tpm_chip *pos, *chip = NULL;
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
- "attempting to determine the temporary state");
- if (rc) {
- kfree(data);
- return 0;
+ rcu_read_lock();
+ list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
+ if (chip_num != TPM_ANY_NUM && chip_num != pos->dev_num)
+ continue;
+
+ if (try_module_get(pos->dev->driver->owner)) {
+ chip = pos;
+ break;
+ }
}
+ rcu_read_unlock();
+ return chip;
+}
- rc = sprintf(buf, "%d\n", data[TPM_GET_CAP_TEMP_INACTIVE_IDX]);
+#define TPM_ORDINAL_PCRREAD cpu_to_be32(21)
+#define READ_PCR_RESULT_SIZE 30
+static struct tpm_input_header pcrread_header = {
+ .tag = TPM_TAG_RQU_COMMAND,
+ .length = cpu_to_be32(14),
+ .ordinal = TPM_ORDINAL_PCRREAD
+};
- kfree(data);
+int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
+{
+ int rc;
+ struct tpm_cmd_t cmd;
+
+ cmd.header.in = pcrread_header;
+ cmd.params.pcrread_in.pcr_idx = cpu_to_be32(pcr_idx);
+ BUILD_BUG_ON(cmd.header.in.length > READ_PCR_RESULT_SIZE);
+ rc = transmit_cmd(chip, &cmd, cmd.header.in.length,
+ "attempting to read a pcr value");
+
+ if (rc == 0)
+ memcpy(res_buf, cmd.params.pcrread_out.pcr_result,
+ TPM_DIGEST_SIZE);
return rc;
}
-EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
-static const u8 pcrread[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 14, /* length */
- 0, 0, 0, 21, /* TPM_ORD_PcrRead */
- 0, 0, 0, 0 /* PCR index */
+/**
+ * tpm_pcr_read - read a pcr value
+ * @chip_num: tpm idx # or ANY
+ * @pcr_idx: pcr idx to retrieve
+ * @res_buf: TPM_PCR value
+ * size of res_buf is 20 bytes (or NULL if you don't care)
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf)
+{
+ struct tpm_chip *chip;
+ int rc;
+
+ chip = tpm_chip_find_get(chip_num);
+ if (chip == NULL)
+ return -ENODEV;
+ rc = __tpm_pcr_read(chip, pcr_idx, res_buf);
+ module_put(chip->dev->driver->owner);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_read);
+
+/**
+ * tpm_pcr_extend - extend pcr value with hash
+ * @chip_num: tpm idx # or AN&
+ * @pcr_idx: pcr idx to extend
+ * @hash: hash value used to extend pcr value
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+#define TPM_ORD_PCR_EXTEND cpu_to_be32(20)
+#define EXTEND_PCR_SIZE 34
+static struct tpm_input_header pcrextend_header = {
+ .tag = TPM_TAG_RQU_COMMAND,
+ .length = cpu_to_be32(34),
+ .ordinal = TPM_ORD_PCR_EXTEND
};
+int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash)
+{
+ struct tpm_cmd_t cmd;
+ int rc;
+ struct tpm_chip *chip;
+
+ chip = tpm_chip_find_get(chip_num);
+ if (chip == NULL)
+ return -ENODEV;
+
+ cmd.header.in = pcrextend_header;
+ BUILD_BUG_ON(be32_to_cpu(cmd.header.in.length) > EXTEND_PCR_SIZE);
+ cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(pcr_idx);
+ memcpy(cmd.params.pcrextend_in.hash, hash, TPM_DIGEST_SIZE);
+ rc = transmit_cmd(chip, &cmd, cmd.header.in.length,
+ "attempting extend a PCR value");
+
+ module_put(chip->dev->driver->owner);
+ return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_extend);
+
ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
char *buf)
{
- u8 *data;
+ cap_t cap;
+ u8 digest[TPM_DIGEST_SIZE];
ssize_t rc;
int i, j, num_pcrs;
- __be32 index;
char *str = buf;
-
struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
- data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_PCR;
-
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
+ rc = tpm_getcap(dev, TPM_CAP_PROP_PCR, &cap,
"attempting to determine the number of PCRS");
- if (rc) {
- kfree(data);
+ if (rc)
return 0;
- }
- num_pcrs = be32_to_cpu(*((__be32 *) (data + 14)));
+ num_pcrs = be32_to_cpu(cap.num_pcrs);
for (i = 0; i < num_pcrs; i++) {
- memcpy(data, pcrread, sizeof(pcrread));
- index = cpu_to_be32(i);
- memcpy(data + 10, &index, 4);
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
- "attempting to read a PCR");
+ rc = __tpm_pcr_read(chip, i, digest);
if (rc)
- goto out;
+ break;
str += sprintf(str, "PCR-%02d: ", i);
for (j = 0; j < TPM_DIGEST_SIZE; j++)
- str += sprintf(str, "%02X ", *(data + 10 + j));
+ str += sprintf(str, "%02X ", digest[j]);
str += sprintf(str, "\n");
}
-out:
- kfree(data);
return str - buf;
}
EXPORT_SYMBOL_GPL(tpm_show_pcrs);
#define READ_PUBEK_RESULT_SIZE 314
-static const u8 readpubek[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 30, /* length */
- 0, 0, 0, 124, /* TPM_ORD_ReadPubek */
+#define TPM_ORD_READPUBEK cpu_to_be32(124)
+struct tpm_input_header tpm_readpubek_header = {
+ .tag = TPM_TAG_RQU_COMMAND,
+ .length = cpu_to_be32(30),
+ .ordinal = TPM_ORD_READPUBEK
};
ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
char *buf)
{
u8 *data;
+ struct tpm_cmd_t tpm_cmd;
ssize_t err;
int i, rc;
char *str = buf;
struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
- data = kzalloc(READ_PUBEK_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, readpubek, sizeof(readpubek));
-
- err = transmit_cmd(chip, data, READ_PUBEK_RESULT_SIZE,
+ tpm_cmd.header.in = tpm_readpubek_header;
+ err = transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE,
"attempting to read the PUBEK");
if (err)
goto out;
@@ -812,7 +836,7 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
256 byte modulus
ignore checksum 20 bytes
*/
-
+ data = tpm_cmd.params.readpubek_out_buffer;
str +=
sprintf(str,
"Algorithm: %02X %02X %02X %02X\nEncscheme: %02X %02X\n"
@@ -832,65 +856,33 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
}
out:
rc = str - buf;
- kfree(data);
return rc;
}
EXPORT_SYMBOL_GPL(tpm_show_pubek);
-#define CAP_VERSION_1_1 6
-#define CAP_VERSION_1_2 0x1A
-#define CAP_VERSION_IDX 13
-static const u8 cap_version[] = {
- 0, 193, /* TPM_TAG_RQU_COMMAND */
- 0, 0, 0, 18, /* length */
- 0, 0, 0, 101, /* TPM_ORD_GetCapability */
- 0, 0, 0, 0,
- 0, 0, 0, 0
-};
ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
char *buf)
{
- u8 *data;
+ cap_t cap;
ssize_t rc;
char *str = buf;
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER;
-
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
+ rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap,
"attempting to determine the manufacturer");
- if (rc) {
- kfree(data);
+ if (rc)
return 0;
- }
-
str += sprintf(str, "Manufacturer: 0x%x\n",
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX))));
+ be32_to_cpu(cap.manufacturer_id));
- memcpy(data, cap_version, sizeof(cap_version));
- data[CAP_VERSION_IDX] = CAP_VERSION_1_1;
- rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
- "attempting to determine the 1.1 version");
+ rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
+ "attempting to determine the 1.1 version");
if (rc)
- goto out;
-
+ return 0;
str += sprintf(str,
"TCG version: %d.%d\nFirmware version: %d.%d\n",
- (int) data[14], (int) data[15], (int) data[16],
- (int) data[17]);
-
-out:
- kfree(data);
+ cap.tpm_version.Major, cap.tpm_version.Minor,
+ cap.tpm_version.revMajor, cap.tpm_version.revMinor);
return str - buf;
}
EXPORT_SYMBOL_GPL(tpm_show_caps);
@@ -898,51 +890,25 @@ EXPORT_SYMBOL_GPL(tpm_show_caps);
ssize_t tpm_show_caps_1_2(struct device * dev,
struct device_attribute * attr, char *buf)
{
- u8 *data;
- ssize_t len;
+ cap_t cap;
+ ssize_t rc;
char *str = buf;
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return -ENODEV;
-
- data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- memcpy(data, tpm_cap, sizeof(tpm_cap));
- data[TPM_CAP_IDX] = TPM_CAP_PROP;
- data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER;
-
- len = tpm_transmit(chip, data, TPM_INTERNAL_RESULT_SIZE);
- if (len <= TPM_ERROR_SIZE) {
- dev_dbg(chip->dev, "A TPM error (%d) occurred "
- "attempting to determine the manufacturer\n",
- be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))));
- kfree(data);
+ rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap,
+ "attempting to determine the manufacturer");
+ if (rc)
return 0;
- }
-
str += sprintf(str, "Manufacturer: 0x%x\n",
- be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX))));
-
- memcpy(data, cap_version, sizeof(cap_version));
- data[CAP_VERSION_IDX] = CAP_VERSION_1_2;
-
- len = tpm_transmit(chip, data, TPM_INTERNAL_RESULT_SIZE);
- if (len <= TPM_ERROR_SIZE) {
- dev_err(chip->dev, "A TPM error (%d) occurred "
- "attempting to determine the 1.2 version\n",
- be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))));
- goto out;
- }
+ be32_to_cpu(cap.manufacturer_id));
+ rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap,
+ "attempting to determine the 1.2 version");
+ if (rc)
+ return 0;
str += sprintf(str,
"TCG version: %d.%d\nFirmware version: %d.%d\n",
- (int) data[16], (int) data[17], (int) data[18],
- (int) data[19]);
-
-out:
- kfree(data);
+ cap.tpm_version_1_2.Major, cap.tpm_version_1_2.Minor,
+ cap.tpm_version_1_2.revMajor,
+ cap.tpm_version_1_2.revMinor);
return str - buf;
}
EXPORT_SYMBOL_GPL(tpm_show_caps_1_2);
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 8e30df4a438..8e00b4ddd08 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -26,6 +26,7 @@
#include <linux/miscdevice.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/tpm.h>
enum tpm_timeout {
TPM_TIMEOUT = 5, /* msecs */
@@ -123,6 +124,147 @@ static inline void tpm_write_index(int base, int index, int value)
outb(index, base);
outb(value & 0xFF, base+1);
}
+struct tpm_input_header {
+ __be16 tag;
+ __be32 length;
+ __be32 ordinal;
+}__attribute__((packed));
+
+struct tpm_output_header {
+ __be16 tag;
+ __be32 length;
+ __be32 return_code;
+}__attribute__((packed));
+
+struct stclear_flags_t {
+ __be16 tag;
+ u8 deactivated;
+ u8 disableForceClear;
+ u8 physicalPresence;
+ u8 physicalPresenceLock;
+ u8 bGlobalLock;
+}__attribute__((packed));
+
+struct tpm_version_t {
+ u8 Major;
+ u8 Minor;
+ u8 revMajor;
+ u8 revMinor;
+}__attribute__((packed));
+
+struct tpm_version_1_2_t {
+ __be16 tag;
+ u8 Major;
+ u8 Minor;
+ u8 revMajor;
+ u8 revMinor;
+}__attribute__((packed));
+
+struct timeout_t {
+ __be32 a;
+ __be32 b;
+ __be32 c;
+ __be32 d;
+}__attribute__((packed));
+
+struct duration_t {
+ __be32 tpm_short;
+ __be32 tpm_medium;
+ __be32 tpm_long;
+}__attribute__((packed));
+
+struct permanent_flags_t {
+ __be16 tag;
+ u8 disable;
+ u8 ownership;
+ u8 deactivated;
+ u8 readPubek;
+ u8 disableOwnerClear;
+ u8 allowMaintenance;
+ u8 physicalPresenceLifetimeLock;
+ u8 physicalPresenceHWEnable;
+ u8 physicalPresenceCMDEnable;
+ u8 CEKPUsed;
+ u8 TPMpost;
+ u8 TPMpostLock;
+ u8 FIPS;
+ u8 operator;
+ u8 enableRevokeEK;
+ u8 nvLocked;
+ u8 readSRKPub;
+ u8 tpmEstablished;
+ u8 maintenanceDone;
+ u8 disableFullDALogicInfo;
+}__attribute__((packed));
+
+typedef union {
+ struct permanent_flags_t perm_flags;
+ struct stclear_flags_t stclear_flags;
+ bool owned;
+ __be32 num_pcrs;
+ struct tpm_version_t tpm_version;
+ struct tpm_version_1_2_t tpm_version_1_2;
+ __be32 manufacturer_id;
+ struct timeout_t timeout;
+ struct duration_t duration;
+} cap_t;
+
+struct tpm_getcap_params_in {
+ __be32 cap;
+ __be32 subcap_size;
+ __be32 subcap;
+}__attribute__((packed));
+
+struct tpm_getcap_params_out {
+ __be32 cap_size;
+ cap_t cap;
+}__attribute__((packed));
+
+struct tpm_readpubek_params_out {
+ u8 algorithm[4];
+ u8 encscheme[2];
+ u8 sigscheme[2];
+ u8 parameters[12]; /*assuming RSA*/
+ __be32 keysize;
+ u8 modulus[256];
+ u8 checksum[20];
+}__attribute__((packed));
+
+typedef union {
+ struct tpm_input_header in;
+ struct tpm_output_header out;
+} tpm_cmd_header;
+
+#define TPM_DIGEST_SIZE 20
+struct tpm_pcrread_out {
+ u8 pcr_result[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
+struct tpm_pcrread_in {
+ __be32 pcr_idx;
+}__attribute__((packed));
+
+struct tpm_pcrextend_in {
+ __be32 pcr_idx;
+ u8 hash[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
+typedef union {
+ struct tpm_getcap_params_out getcap_out;
+ struct tpm_readpubek_params_out readpubek_out;
+ u8 readpubek_out_buffer[sizeof(struct tpm_readpubek_params_out)];
+ struct tpm_getcap_params_in getcap_in;
+ struct tpm_pcrread_in pcrread_in;
+ struct tpm_pcrread_out pcrread_out;
+ struct tpm_pcrextend_in pcrextend_in;
+} tpm_cmd_params;
+
+struct tpm_cmd_t {
+ tpm_cmd_header header;
+ tpm_cmd_params params;
+}__attribute__((packed));
+
+ssize_t tpm_getcap(struct device *, __be32, cap_t *, const char *);
extern void tpm_get_timeouts(struct tpm_chip *);
extern void tpm_gen_interrupt(struct tpm_chip *);
diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index d0e7926eb48..c64a1bc6534 100644
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -168,12 +168,22 @@ static void atml_plat_remove(void)
}
}
-static struct device_driver atml_drv = {
- .name = "tpm_atmel",
- .bus = &platform_bus_type,
- .owner = THIS_MODULE,
- .suspend = tpm_pm_suspend,
- .resume = tpm_pm_resume,
+static int tpm_atml_suspend(struct platform_device *dev, pm_message_t msg)
+{
+ return tpm_pm_suspend(&dev->dev, msg);
+}
+
+static int tpm_atml_resume(struct platform_device *dev)
+{
+ return tpm_pm_resume(&dev->dev);
+}
+static struct platform_driver atml_drv = {
+ .driver = {
+ .name = "tpm_atmel",
+ .owner = THIS_MODULE,
+ },
+ .suspend = tpm_atml_suspend,
+ .resume = tpm_atml_resume,
};
static int __init init_atmel(void)
@@ -184,7 +194,7 @@ static int __init init_atmel(void)
unsigned long base;
struct tpm_chip *chip;
- rc = driver_register(&atml_drv);
+ rc = platform_driver_register(&atml_drv);
if (rc)
return rc;
@@ -223,13 +233,13 @@ err_rel_reg:
atmel_release_region(base,
region_size);
err_unreg_drv:
- driver_unregister(&atml_drv);
+ platform_driver_unregister(&atml_drv);
return rc;
}
static void __exit cleanup_atmel(void)
{
- driver_unregister(&atml_drv);
+ platform_driver_unregister(&atml_drv);
atml_plat_remove();
}
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 717af7ad1bd..aec1931608a 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -654,12 +654,22 @@ module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id,
sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444);
MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
-static struct device_driver tis_drv = {
- .name = "tpm_tis",
- .bus = &platform_bus_type,
- .owner = THIS_MODULE,
- .suspend = tpm_pm_suspend,
- .resume = tpm_pm_resume,
+static int tpm_tis_suspend(struct platform_device *dev, pm_message_t msg)
+{
+ return tpm_pm_suspend(&dev->dev, msg);
+}
+
+static int tpm_tis_resume(struct platform_device *dev)
+{
+ return tpm_pm_resume(&dev->dev);
+}
+static struct platform_driver tis_drv = {
+ .driver = {
+ .name = "tpm_tis",
+ .owner = THIS_MODULE,
+ },
+ .suspend = tpm_tis_suspend,
+ .resume = tpm_tis_resume,
};
static struct platform_device *pdev;
@@ -672,14 +682,14 @@ static int __init init_tis(void)
int rc;
if (force) {
- rc = driver_register(&tis_drv);
+ rc = platform_driver_register(&tis_drv);
if (rc < 0)
return rc;
if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0)))
return PTR_ERR(pdev);
if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) {
platform_device_unregister(pdev);
- driver_unregister(&tis_drv);
+ platform_driver_unregister(&tis_drv);
}
return rc;
}
@@ -711,7 +721,7 @@ static void __exit cleanup_tis(void)
if (force) {
platform_device_unregister(pdev);
- driver_unregister(&tis_drv);
+ platform_driver_unregister(&tis_drv);
} else
pnp_unregister_driver(&tis_pnp_driver);
}
diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index 4f3b3f95fc4..d94d25c12aa 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -479,18 +479,18 @@ static const struct file_operations vcs_fops = {
static struct class *vc_class;
-void vcs_make_sysfs(struct tty_struct *tty)
+void vcs_make_sysfs(int index)
{
- device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), NULL,
- "vcs%u", tty->index + 1);
- device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), NULL,
- "vcsa%u", tty->index + 1);
+ device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 1), NULL,
+ "vcs%u", index + 1);
+ device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 129), NULL,
+ "vcsa%u", index + 1);
}
-void vcs_remove_sysfs(struct tty_struct *tty)
+void vcs_remove_sysfs(int index)
{
- device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1));
- device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129));
+ device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 1));
+ device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 129));
}
int __init vcs_init(void)
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 7900bd63b36..2c1d133819b 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -778,6 +778,7 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
}
vc->vc_kmalloced = 1;
vc_init(vc, vc->vc_rows, vc->vc_cols, 1);
+ vcs_make_sysfs(currcons);
atomic_notifier_call_chain(&vt_notifier_list, VT_ALLOCATE, &param);
}
return 0;
@@ -987,7 +988,9 @@ void vc_deallocate(unsigned int currcons)
if (vc_cons_allocated(currcons)) {
struct vc_data *vc = vc_cons[currcons].d;
struct vt_notifier_param param = { .vc = vc };
+
atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, &param);
+ vcs_remove_sysfs(currcons);
vc->vc_sw->con_deinit(vc);
put_pid(vc->vt_pid);
module_put(vc->vc_sw->owner);
@@ -2775,7 +2778,6 @@ static int con_open(struct tty_struct *tty, struct file *filp)
tty->termios->c_iflag |= IUTF8;
else
tty->termios->c_iflag &= ~IUTF8;
- vcs_make_sysfs(tty);
release_console_sem();
return ret;
}
@@ -2795,7 +2797,6 @@ static void con_shutdown(struct tty_struct *tty)
BUG_ON(vc == NULL);
acquire_console_sem();
vc->vc_tty = NULL;
- vcs_remove_sysfs(tty);
release_console_sem();
tty_shutdown(tty);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-26 09:46:56 +0000