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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-21 09:06:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-21 09:06:02 -0800
commitfb2e2c85375a0380d6818f153ffa2ae9ebbd055f (patch)
treecf8498a01357c220e4d664ff67125f60146f0da3
parentec513b16c480c6cdda1e3d597e611eafca05227b (diff)
parent923b49ff69fcbffe6f8b2739de218c45544392a7 (diff)
downloadlinux-stericsson-fb2e2c85375a0380d6818f153ffa2ae9ebbd055f.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security layer updates from James Morris: "Changes for this kernel include maintenance updates for Smack, SELinux (and several networking fixes), IMA and TPM" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (39 commits) SELinux: Fix memory leak upon loading policy tpm/tpm-sysfs: active_show() can be static tpm: tpm_tis: Fix compile problems with CONFIG_PM_SLEEP/CONFIG_PNP tpm: Make tpm-dev allocate a per-file structure tpm: Use the ops structure instead of a copy in tpm_vendor_specific tpm: Create a tpm_class_ops structure and use it in the drivers tpm: Pull all driver sysfs code into tpm-sysfs.c tpm: Move sysfs functions from tpm-interface to tpm-sysfs tpm: Pull everything related to /dev/tpmX into tpm-dev.c char: tpm: nuvoton: remove unused variable tpm: MAINTAINERS: Cleanup TPM Maintainers file tpm/tpm_i2c_atmel: fix coccinelle warnings tpm/tpm_ibmvtpm: fix unreachable code warning (smatch warning) tpm/tpm_i2c_stm_st33: Check return code of get_burstcount tpm/tpm_ppi: Check return value of acpi_get_name tpm/tpm_ppi: Do not compare strcmp(a,b) == -1 ima: remove unneeded size_limit argument from ima_eventdigest_init_common() ima: update IMA-templates.txt documentation ima: pass HASH_ALGO__LAST as hash algo in ima_eventdigest_init() ima: change the default hash algorithm to SHA1 in ima_eventdigest_ng_init() ...
-rw-r--r--Documentation/security/IMA-templates.txt6
-rw-r--r--MAINTAINERS8
-rw-r--r--drivers/char/tpm/Makefile2
-rw-r--r--drivers/char/tpm/tpm-dev.c213
-rw-r--r--drivers/char/tpm/tpm-interface.c488
-rw-r--r--drivers/char/tpm/tpm-sysfs.c318
-rw-r--r--drivers/char/tpm/tpm.h83
-rw-r--r--drivers/char/tpm/tpm_atmel.c28
-rw-r--r--drivers/char/tpm/tpm_i2c_atmel.c44
-rw-r--r--drivers/char/tpm/tpm_i2c_infineon.c42
-rw-r--r--drivers/char/tpm/tpm_i2c_nuvoton.c43
-rw-r--r--drivers/char/tpm/tpm_i2c_stm_st33.c48
-rw-r--r--drivers/char/tpm/tpm_ibmvtpm.c41
-rw-r--r--drivers/char/tpm/tpm_infineon.c28
-rw-r--r--drivers/char/tpm/tpm_nsc.c28
-rw-r--r--drivers/char/tpm/tpm_ppi.c8
-rw-r--r--drivers/char/tpm/tpm_tis.c49
-rw-r--r--drivers/char/tpm/xen-tpmfront.c45
-rw-r--r--include/linux/tpm.h12
-rw-r--r--security/integrity/ima/ima_template_lib.c18
-rw-r--r--security/selinux/hooks.c7
-rw-r--r--security/selinux/include/security.h3
-rw-r--r--security/selinux/netlabel.c31
-rw-r--r--security/selinux/ss/constraint.h1
-rw-r--r--security/selinux/ss/policydb.c110
-rw-r--r--security/selinux/ss/policydb.h11
-rw-r--r--security/selinux/ss/services.c54
-rw-r--r--security/smack/smack.h5
-rw-r--r--security/smack/smack_lsm.c140
-rw-r--r--security/smack/smackfs.c134
30 files changed, 1007 insertions, 1041 deletions
diff --git a/Documentation/security/IMA-templates.txt b/Documentation/security/IMA-templates.txt
index a777e5f1df5b..a4e102dddfea 100644
--- a/Documentation/security/IMA-templates.txt
+++ b/Documentation/security/IMA-templates.txt
@@ -67,12 +67,14 @@ descriptors by adding their identifier to the format string
- 'd-ng': the digest of the event, calculated with an arbitrary hash
algorithm (field format: [<hash algo>:]digest, where the digest
prefix is shown only if the hash algorithm is not SHA1 or MD5);
- - 'n-ng': the name of the event, without size limitations.
+ - 'n-ng': the name of the event, without size limitations;
+ - 'sig': the file signature.
Below, there is the list of defined template descriptors:
- "ima": its format is 'd|n';
- - "ima-ng" (default): its format is 'd-ng|n-ng'.
+ - "ima-ng" (default): its format is 'd-ng|n-ng';
+ - "ima-sig": its format is 'd-ng|n-ng|sig'.
diff --git a/MAINTAINERS b/MAINTAINERS
index 88ae0eca7cd8..5c214024f60a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8746,14 +8746,10 @@ S: Odd fixes
F: drivers/media/usb/tm6000/
TPM DEVICE DRIVER
-M: Leonidas Da Silva Barbosa <leosilva@linux.vnet.ibm.com>
-M: Ashley Lai <ashley@ashleylai.com>
M: Peter Huewe <peterhuewe@gmx.de>
-M: Rajiv Andrade <mail@srajiv.net>
-W: http://tpmdd.sourceforge.net
+M: Ashley Lai <ashley@ashleylai.com>
M: Marcel Selhorst <tpmdd@selhorst.net>
-M: Sirrix AG <tpmdd@sirrix.com>
-W: http://www.sirrix.com
+W: http://tpmdd.sourceforge.net
L: tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers)
S: Maintained
F: drivers/char/tpm/
diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index b80a4000daee..4d85dd681b81 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -2,7 +2,7 @@
# Makefile for the kernel tpm device drivers.
#
obj-$(CONFIG_TCG_TPM) += tpm.o
-tpm-y := tpm-interface.o
+tpm-y := tpm-interface.o tpm-dev.o tpm-sysfs.o
tpm-$(CONFIG_ACPI) += tpm_ppi.o
ifdef CONFIG_ACPI
diff --git a/drivers/char/tpm/tpm-dev.c b/drivers/char/tpm/tpm-dev.c
new file mode 100644
index 000000000000..d9b774e02a1f
--- /dev/null
+++ b/drivers/char/tpm/tpm-dev.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2004 IBM Corporation
+ * Authors:
+ * Leendert van Doorn <leendert@watson.ibm.com>
+ * Dave Safford <safford@watson.ibm.com>
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Kylene Hall <kjhall@us.ibm.com>
+ *
+ * Copyright (C) 2013 Obsidian Research Corp
+ * Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
+ *
+ * Device file system interface to the TPM
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ */
+#include <linux/miscdevice.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include "tpm.h"
+
+struct file_priv {
+ struct tpm_chip *chip;
+
+ /* Data passed to and from the tpm via the read/write calls */
+ atomic_t data_pending;
+ struct mutex buffer_mutex;
+
+ struct timer_list user_read_timer; /* user needs to claim result */
+ struct work_struct work;
+
+ u8 data_buffer[TPM_BUFSIZE];
+};
+
+static void user_reader_timeout(unsigned long ptr)
+{
+ struct file_priv *priv = (struct file_priv *)ptr;
+
+ schedule_work(&priv->work);
+}
+
+static void timeout_work(struct work_struct *work)
+{
+ struct file_priv *priv = container_of(work, struct file_priv, work);
+
+ mutex_lock(&priv->buffer_mutex);
+ atomic_set(&priv->data_pending, 0);
+ memset(priv->data_buffer, 0, sizeof(priv->data_buffer));
+ mutex_unlock(&priv->buffer_mutex);
+}
+
+static int tpm_open(struct inode *inode, struct file *file)
+{
+ struct miscdevice *misc = file->private_data;
+ struct tpm_chip *chip = container_of(misc, struct tpm_chip,
+ vendor.miscdev);
+ struct file_priv *priv;
+
+ /* It's assured that the chip will be opened just once,
+ * by the check of is_open variable, which is protected
+ * by driver_lock. */
+ if (test_and_set_bit(0, &chip->is_open)) {
+ dev_dbg(chip->dev, "Another process owns this TPM\n");
+ return -EBUSY;
+ }
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (priv == NULL) {
+ clear_bit(0, &chip->is_open);
+ return -ENOMEM;
+ }
+
+ priv->chip = chip;
+ atomic_set(&priv->data_pending, 0);
+ mutex_init(&priv->buffer_mutex);
+ setup_timer(&priv->user_read_timer, user_reader_timeout,
+ (unsigned long)priv);
+ INIT_WORK(&priv->work, timeout_work);
+
+ file->private_data = priv;
+ get_device(chip->dev);
+ return 0;
+}
+
+static ssize_t tpm_read(struct file *file, char __user *buf,
+ size_t size, loff_t *off)
+{
+ struct file_priv *priv = file->private_data;
+ ssize_t ret_size;
+ int rc;
+
+ del_singleshot_timer_sync(&priv->user_read_timer);
+ flush_work(&priv->work);
+ ret_size = atomic_read(&priv->data_pending);
+ if (ret_size > 0) { /* relay data */
+ ssize_t orig_ret_size = ret_size;
+ if (size < ret_size)
+ ret_size = size;
+
+ mutex_lock(&priv->buffer_mutex);
+ rc = copy_to_user(buf, priv->data_buffer, ret_size);
+ memset(priv->data_buffer, 0, orig_ret_size);
+ if (rc)
+ ret_size = -EFAULT;
+
+ mutex_unlock(&priv->buffer_mutex);
+ }
+
+ atomic_set(&priv->data_pending, 0);
+
+ return ret_size;
+}
+
+static ssize_t tpm_write(struct file *file, const char __user *buf,
+ size_t size, loff_t *off)
+{
+ struct file_priv *priv = file->private_data;
+ size_t in_size = size;
+ ssize_t out_size;
+
+ /* cannot perform a write until the read has cleared
+ either via tpm_read or a user_read_timer timeout.
+ This also prevents splitted buffered writes from blocking here.
+ */
+ if (atomic_read(&priv->data_pending) != 0)
+ return -EBUSY;
+
+ if (in_size > TPM_BUFSIZE)
+ return -E2BIG;
+
+ mutex_lock(&priv->buffer_mutex);
+
+ if (copy_from_user
+ (priv->data_buffer, (void __user *) buf, in_size)) {
+ mutex_unlock(&priv->buffer_mutex);
+ return -EFAULT;
+ }
+
+ /* atomic tpm command send and result receive */
+ out_size = tpm_transmit(priv->chip, priv->data_buffer,
+ sizeof(priv->data_buffer));
+ if (out_size < 0) {
+ mutex_unlock(&priv->buffer_mutex);
+ return out_size;
+ }
+
+ atomic_set(&priv->data_pending, out_size);
+ mutex_unlock(&priv->buffer_mutex);
+
+ /* Set a timeout by which the reader must come claim the result */
+ mod_timer(&priv->user_read_timer, jiffies + (60 * HZ));
+
+ return in_size;
+}
+
+/*
+ * Called on file close
+ */
+static int tpm_release(struct inode *inode, struct file *file)
+{
+ struct file_priv *priv = file->private_data;
+
+ del_singleshot_timer_sync(&priv->user_read_timer);
+ flush_work(&priv->work);
+ file->private_data = NULL;
+ atomic_set(&priv->data_pending, 0);
+ clear_bit(0, &priv->chip->is_open);
+ put_device(priv->chip->dev);
+ kfree(priv);
+ return 0;
+}
+
+static const struct file_operations tpm_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .open = tpm_open,
+ .read = tpm_read,
+ .write = tpm_write,
+ .release = tpm_release,
+};
+
+int tpm_dev_add_device(struct tpm_chip *chip)
+{
+ int rc;
+
+ chip->vendor.miscdev.fops = &tpm_fops;
+ if (chip->dev_num == 0)
+ chip->vendor.miscdev.minor = TPM_MINOR;
+ else
+ chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR;
+
+ chip->vendor.miscdev.name = chip->devname;
+ chip->vendor.miscdev.parent = chip->dev;
+
+ rc = misc_register(&chip->vendor.miscdev);
+ if (rc) {
+ chip->vendor.miscdev.name = NULL;
+ dev_err(chip->dev,
+ "unable to misc_register %s, minor %d err=%d\n",
+ chip->vendor.miscdev.name,
+ chip->vendor.miscdev.minor, rc);
+ }
+ return rc;
+}
+
+void tpm_dev_del_device(struct tpm_chip *chip)
+{
+ if (chip->vendor.miscdev.name)
+ misc_deregister(&chip->vendor.miscdev);
+}
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 6ae41d337630..62e10fd1e1cb 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -32,13 +32,6 @@
#include "tpm.h"
#include "tpm_eventlog.h"
-enum tpm_duration {
- TPM_SHORT = 0,
- TPM_MEDIUM = 1,
- TPM_LONG = 2,
- TPM_UNDEFINED,
-};
-
#define TPM_MAX_ORDINAL 243
#define TSC_MAX_ORDINAL 12
#define TPM_PROTECTED_COMMAND 0x00
@@ -312,23 +305,6 @@ static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = {
TPM_MEDIUM,
};
-static void user_reader_timeout(unsigned long ptr)
-{
- struct tpm_chip *chip = (struct tpm_chip *) ptr;
-
- schedule_work(&chip->work);
-}
-
-static void timeout_work(struct work_struct *work)
-{
- struct tpm_chip *chip = container_of(work, struct tpm_chip, work);
-
- mutex_lock(&chip->buffer_mutex);
- atomic_set(&chip->data_pending, 0);
- memset(chip->data_buffer, 0, TPM_BUFSIZE);
- mutex_unlock(&chip->buffer_mutex);
-}
-
/*
* Returns max number of jiffies to wait
*/
@@ -355,8 +331,8 @@ EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration);
/*
* Internal kernel interface to transmit TPM commands
*/
-static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
- size_t bufsiz)
+ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
+ size_t bufsiz)
{
ssize_t rc;
u32 count, ordinal;
@@ -377,7 +353,7 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
mutex_lock(&chip->tpm_mutex);
- rc = chip->vendor.send(chip, (u8 *) buf, count);
+ rc = chip->ops->send(chip, (u8 *) buf, count);
if (rc < 0) {
dev_err(chip->dev,
"tpm_transmit: tpm_send: error %zd\n", rc);
@@ -389,12 +365,12 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal);
do {
- u8 status = chip->vendor.status(chip);
- if ((status & chip->vendor.req_complete_mask) ==
- chip->vendor.req_complete_val)
+ u8 status = chip->ops->status(chip);
+ if ((status & chip->ops->req_complete_mask) ==
+ chip->ops->req_complete_val)
goto out_recv;
- if (chip->vendor.req_canceled(chip, status)) {
+ if (chip->ops->req_canceled(chip, status)) {
dev_err(chip->dev, "Operation Canceled\n");
rc = -ECANCELED;
goto out;
@@ -404,13 +380,13 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
rmb();
} while (time_before(jiffies, stop));
- chip->vendor.cancel(chip);
+ chip->ops->cancel(chip);
dev_err(chip->dev, "Operation Timed out\n");
rc = -ETIME;
goto out;
out_recv:
- rc = chip->vendor.recv(chip, (u8 *) buf, bufsiz);
+ rc = chip->ops->recv(chip, (u8 *) buf, bufsiz);
if (rc < 0)
dev_err(chip->dev,
"tpm_transmit: tpm_recv: error %zd\n", rc);
@@ -422,24 +398,6 @@ out:
#define TPM_DIGEST_SIZE 20
#define TPM_RET_CODE_IDX 6
-enum tpm_capabilities {
- 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 = 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),
-
-};
-
static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
int len, const char *desc)
{
@@ -459,7 +417,6 @@ static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
}
#define TPM_INTERNAL_RESULT_SIZE 200
-#define TPM_TAG_RQU_COMMAND cpu_to_be16(193)
#define TPM_ORD_GET_CAP cpu_to_be32(101)
#define TPM_ORD_GET_RANDOM cpu_to_be32(70)
@@ -659,70 +616,6 @@ static int tpm_continue_selftest(struct tpm_chip *chip)
return rc;
}
-ssize_t tpm_show_enabled(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- cap_t cap;
- ssize_t rc;
-
- 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", !cap.perm_flags.disable);
- return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_enabled);
-
-ssize_t tpm_show_active(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- cap_t cap;
- ssize_t rc;
-
- 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", !cap.perm_flags.deactivated);
- return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_active);
-
-ssize_t tpm_show_owned(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- cap_t cap;
- ssize_t rc;
-
- rc = tpm_getcap(dev, TPM_CAP_PROP_OWNER, &cap,
- "attempting to determine the owner state");
- if (rc)
- return 0;
-
- rc = sprintf(buf, "%d\n", cap.owned);
- return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_owned);
-
-ssize_t tpm_show_temp_deactivated(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- cap_t cap;
- ssize_t rc;
-
- rc = tpm_getcap(dev, TPM_CAP_FLAG_VOL, &cap,
- "attempting to determine the temporary state");
- if (rc)
- return 0;
-
- rc = sprintf(buf, "%d\n", cap.stclear_flags.deactivated);
- return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
-
/*
* tpm_chip_find_get - return tpm_chip for given chip number
*/
@@ -752,7 +645,7 @@ static struct tpm_input_header pcrread_header = {
.ordinal = TPM_ORDINAL_PCRREAD
};
-static int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
+int tpm_pcr_read_dev(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
{
int rc;
struct tpm_cmd_t cmd;
@@ -787,7 +680,7 @@ int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf)
chip = tpm_chip_find_get(chip_num);
if (chip == NULL)
return -ENODEV;
- rc = __tpm_pcr_read(chip, pcr_idx, res_buf);
+ rc = tpm_pcr_read_dev(chip, pcr_idx, res_buf);
tpm_chip_put(chip);
return rc;
}
@@ -911,196 +804,15 @@ int tpm_send(u32 chip_num, void *cmd, size_t buflen)
}
EXPORT_SYMBOL_GPL(tpm_send);
-ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- cap_t cap;
- u8 digest[TPM_DIGEST_SIZE];
- ssize_t rc;
- int i, j, num_pcrs;
- char *str = buf;
- struct tpm_chip *chip = dev_get_drvdata(dev);
-
- rc = tpm_getcap(dev, TPM_CAP_PROP_PCR, &cap,
- "attempting to determine the number of PCRS");
- if (rc)
- return 0;
-
- num_pcrs = be32_to_cpu(cap.num_pcrs);
- for (i = 0; i < num_pcrs; i++) {
- rc = __tpm_pcr_read(chip, i, digest);
- if (rc)
- break;
- str += sprintf(str, "PCR-%02d: ", i);
- for (j = 0; j < TPM_DIGEST_SIZE; j++)
- str += sprintf(str, "%02X ", digest[j]);
- str += sprintf(str, "\n");
- }
- return str - buf;
-}
-EXPORT_SYMBOL_GPL(tpm_show_pcrs);
-
-#define READ_PUBEK_RESULT_SIZE 314
-#define TPM_ORD_READPUBEK cpu_to_be32(124)
-static 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);
-
- 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;
-
- /*
- ignore header 10 bytes
- algorithm 32 bits (1 == RSA )
- encscheme 16 bits
- sigscheme 16 bits
- parameters (RSA 12->bytes: keybit, #primes, expbit)
- keylenbytes 32 bits
- 256 byte modulus
- ignore checksum 20 bytes
- */
- data = tpm_cmd.params.readpubek_out_buffer;
- str +=
- sprintf(str,
- "Algorithm: %02X %02X %02X %02X\n"
- "Encscheme: %02X %02X\n"
- "Sigscheme: %02X %02X\n"
- "Parameters: %02X %02X %02X %02X "
- "%02X %02X %02X %02X "
- "%02X %02X %02X %02X\n"
- "Modulus length: %d\n"
- "Modulus:\n",
- data[0], data[1], data[2], data[3],
- data[4], data[5],
- data[6], data[7],
- data[12], data[13], data[14], data[15],
- data[16], data[17], data[18], data[19],
- data[20], data[21], data[22], data[23],
- be32_to_cpu(*((__be32 *) (data + 24))));
-
- for (i = 0; i < 256; i++) {
- str += sprintf(str, "%02X ", data[i + 28]);
- if ((i + 1) % 16 == 0)
- str += sprintf(str, "\n");
- }
-out:
- rc = str - buf;
- return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_pubek);
-
-
-ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- cap_t cap;
- ssize_t rc;
- char *str = buf;
-
- 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(cap.manufacturer_id));
-
- /* Try to get a TPM version 1.2 TPM_CAP_VERSION_INFO */
- rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap,
- "attempting to determine the 1.2 version");
- if (!rc) {
- str += sprintf(str,
- "TCG version: %d.%d\nFirmware version: %d.%d\n",
- cap.tpm_version_1_2.Major,
- cap.tpm_version_1_2.Minor,
- cap.tpm_version_1_2.revMajor,
- cap.tpm_version_1_2.revMinor);
- } else {
- /* Otherwise just use TPM_STRUCT_VER */
- rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
- "attempting to determine the 1.1 version");
- if (rc)
- return 0;
- str += sprintf(str,
- "TCG version: %d.%d\nFirmware version: %d.%d\n",
- 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);
-
-ssize_t tpm_show_durations(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
-
- if (chip->vendor.duration[TPM_LONG] == 0)
- return 0;
-
- return sprintf(buf, "%d %d %d [%s]\n",
- jiffies_to_usecs(chip->vendor.duration[TPM_SHORT]),
- jiffies_to_usecs(chip->vendor.duration[TPM_MEDIUM]),
- jiffies_to_usecs(chip->vendor.duration[TPM_LONG]),
- chip->vendor.duration_adjusted
- ? "adjusted" : "original");
-}
-EXPORT_SYMBOL_GPL(tpm_show_durations);
-
-ssize_t tpm_show_timeouts(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
-
- return sprintf(buf, "%d %d %d %d [%s]\n",
- jiffies_to_usecs(chip->vendor.timeout_a),
- jiffies_to_usecs(chip->vendor.timeout_b),
- jiffies_to_usecs(chip->vendor.timeout_c),
- jiffies_to_usecs(chip->vendor.timeout_d),
- chip->vendor.timeout_adjusted
- ? "adjusted" : "original");
-}
-EXPORT_SYMBOL_GPL(tpm_show_timeouts);
-
-ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct tpm_chip *chip = dev_get_drvdata(dev);
- if (chip == NULL)
- return 0;
-
- chip->vendor.cancel(chip);
- return count;
-}
-EXPORT_SYMBOL_GPL(tpm_store_cancel);
-
static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask,
bool check_cancel, bool *canceled)
{
- u8 status = chip->vendor.status(chip);
+ u8 status = chip->ops->status(chip);
*canceled = false;
if ((status & mask) == mask)
return true;
- if (check_cancel && chip->vendor.req_canceled(chip, status)) {
+ if (check_cancel && chip->ops->req_canceled(chip, status)) {
*canceled = true;
return true;
}
@@ -1116,7 +828,7 @@ int wait_for_tpm_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
bool canceled = false;
/* check current status */
- status = chip->vendor.status(chip);
+ status = chip->ops->status(chip);
if ((status & mask) == mask)
return 0;
@@ -1143,7 +855,7 @@ again:
} else {
do {
msleep(TPM_TIMEOUT);
- status = chip->vendor.status(chip);
+ status = chip->ops->status(chip);
if ((status & mask) == mask)
return 0;
} while (time_before(jiffies, stop));
@@ -1151,127 +863,6 @@ again:
return -ETIME;
}
EXPORT_SYMBOL_GPL(wait_for_tpm_stat);
-/*
- * Device file system interface to the TPM
- *
- * It's assured that the chip will be opened just once,
- * by the check of is_open variable, which is protected
- * by driver_lock.
- */
-int tpm_open(struct inode *inode, struct file *file)
-{
- struct miscdevice *misc = file->private_data;
- struct tpm_chip *chip = container_of(misc, struct tpm_chip,
- vendor.miscdev);
-
- if (test_and_set_bit(0, &chip->is_open)) {
- dev_dbg(chip->dev, "Another process owns this TPM\n");
- return -EBUSY;
- }
-
- chip->data_buffer = kzalloc(TPM_BUFSIZE, GFP_KERNEL);
- if (chip->data_buffer == NULL) {
- clear_bit(0, &chip->is_open);
- return -ENOMEM;
- }
-
- atomic_set(&chip->data_pending, 0);
-
- file->private_data = chip;
- get_device(chip->dev);
- return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_open);
-
-/*
- * Called on file close
- */
-int tpm_release(struct inode *inode, struct file *file)
-{
- struct tpm_chip *chip = file->private_data;
-
- del_singleshot_timer_sync(&chip->user_read_timer);
- flush_work(&chip->work);
- file->private_data = NULL;
- atomic_set(&chip->data_pending, 0);
- kzfree(chip->data_buffer);
- clear_bit(0, &chip->is_open);
- put_device(chip->dev);
- return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_release);
-
-ssize_t tpm_write(struct file *file, const char __user *buf,
- size_t size, loff_t *off)
-{
- struct tpm_chip *chip = file->private_data;
- size_t in_size = size;
- ssize_t out_size;
-
- /* cannot perform a write until the read has cleared
- either via tpm_read or a user_read_timer timeout.
- This also prevents splitted buffered writes from blocking here.
- */
- if (atomic_read(&chip->data_pending) != 0)
- return -EBUSY;
-
- if (in_size > TPM_BUFSIZE)
- return -E2BIG;
-
- mutex_lock(&chip->buffer_mutex);
-
- if (copy_from_user
- (chip->data_buffer, (void __user *) buf, in_size)) {
- mutex_unlock(&chip->buffer_mutex);
- return -EFAULT;
- }
-
- /* atomic tpm command send and result receive */
- out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
- if (out_size < 0) {
- mutex_unlock(&chip->buffer_mutex);
- return out_size;
- }
-
- atomic_set(&chip->data_pending, out_size);
- mutex_unlock(&chip->buffer_mutex);
-
- /* Set a timeout by which the reader must come claim the result */
- mod_timer(&chip->user_read_timer, jiffies + (60 * HZ));
-
- return in_size;
-}
-EXPORT_SYMBOL_GPL(tpm_write);
-
-ssize_t tpm_read(struct file *file, char __user *buf,
- size_t size, loff_t *off)
-{
- struct tpm_chip *chip = file->private_data;
- ssize_t ret_size;
- int rc;
-
- del_singleshot_timer_sync(&chip->user_read_timer);
- flush_work(&chip->work);
- ret_size = atomic_read(&chip->data_pending);
- if (ret_size > 0) { /* relay data */
- ssize_t orig_ret_size = ret_size;
- if (size < ret_size)
- ret_size = size;
-
- mutex_lock(&chip->buffer_mutex);
- rc = copy_to_user(buf, chip->data_buffer, ret_size);
- memset(chip->data_buffer, 0, orig_ret_size);
- if (rc)
- ret_size = -EFAULT;
-
- mutex_unlock(&chip->buffer_mutex);
- }
-
- atomic_set(&chip->data_pending, 0);
-
- return ret_size;
-}
-EXPORT_SYMBOL_GPL(tpm_read);
void tpm_remove_hardware(struct device *dev)
{
@@ -1287,8 +878,8 @@ void tpm_remove_hardware(struct device *dev)
spin_unlock(&driver_lock);
synchronize_rcu();
- misc_deregister(&chip->vendor.miscdev);
- sysfs_remove_group(&dev->kobj, chip->vendor.attr_group);
+ tpm_dev_del_device(chip);
+ tpm_sysfs_del_device(chip);
tpm_remove_ppi(&dev->kobj);
tpm_bios_log_teardown(chip->bios_dir);
@@ -1436,9 +1027,6 @@ void tpm_dev_vendor_release(struct tpm_chip *chip)
if (!chip)
return;
- if (chip->vendor.release)
- chip->vendor.release(chip->dev);
-
clear_bit(chip->dev_num, dev_mask);
}
EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
@@ -1448,7 +1036,7 @@ EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
* Once all references to platform device are down to 0,
* release all allocated structures.
*/
-void tpm_dev_release(struct device *dev)
+static void tpm_dev_release(struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
@@ -1460,7 +1048,6 @@ void tpm_dev_release(struct device *dev)
chip->release(dev);
kfree(chip);
}
-EXPORT_SYMBOL_GPL(tpm_dev_release);
/*
* Called from tpm_<specific>.c probe function only for devices
@@ -1470,7 +1057,7 @@ EXPORT_SYMBOL_GPL(tpm_dev_release);
* pci_disable_device
*/
struct tpm_chip *tpm_register_hardware(struct device *dev,
- const struct tpm_vendor_specific *entry)
+ const struct tpm_class_ops *ops)
{
struct tpm_chip *chip;
@@ -1480,56 +1067,35 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
if (chip == NULL)
return NULL;
- mutex_init(&chip->buffer_mutex);
mutex_init(&chip->tpm_mutex);
INIT_LIST_HEAD(&chip->list);
- INIT_WORK(&chip->work, timeout_work);
-
- setup_timer(&chip->user_read_timer, user_reader_timeout,
- (unsigned long)chip);
-
- memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific));
-
+ chip->ops = ops;
chip->dev_num = find_first_zero_bit(dev_mask, TPM_NUM_DEVICES);
if (chip->dev_num >= TPM_NUM_DEVICES) {
dev_err(dev, "No available tpm device numbers\n");
goto out_free;
- } else if (chip->dev_num == 0)
- chip->vendor.miscdev.minor = TPM_MINOR;
- else
- chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR;
+ }
set_bit(chip->dev_num, dev_mask);
scnprintf(chip->devname, sizeof(chip->devname), "%s%d", "tpm",
chip->dev_num);
- chip->vendor.miscdev.name = chip->devname;
- chip->vendor.miscdev.parent = dev;
chip->dev = get_device(dev);
chip->release = dev->release;
dev->release = tpm_dev_release;
dev_set_drvdata(dev, chip);
- if (misc_register(&chip->vendor.miscdev)) {
- dev_err(chip->dev,
- "unable to misc_register %s, minor %d\n",
- chip->vendor.miscdev.name,
- chip->vendor.miscdev.minor);
+ if (tpm_dev_add_device(chip))
goto put_device;
- }
- if (sysfs_create_group(&dev->kobj, chip->vendor.attr_group)) {
- misc_deregister(&chip->vendor.miscdev);
- goto put_device;
- }
+ if (tpm_sysfs_add_device(chip))
+ goto del_misc;
- if (tpm_add_ppi(&dev->kobj)) {
- misc_deregister(&chip->vendor.miscdev);
- goto put_device;
- }
+ if (tpm_add_ppi(&dev->kobj))
+ goto del_misc;
chip->bios_dir = tpm_bios_log_setup(chip->devname);
@@ -1540,6 +1106,8 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
return chip;
+del_misc:
+ tpm_dev_del_device(chip);
put_device:
put_device(chip->dev);
out_free:
diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
new file mode 100644
index 000000000000..01730a27ae07
--- /dev/null
+++ b/drivers/char/tpm/tpm-sysfs.c
@@ -0,0 +1,318 @@
+/*
+ * Copyright (C) 2004 IBM Corporation
+ * Authors:
+ * Leendert van Doorn <leendert@watson.ibm.com>
+ * Dave Safford <safford@watson.ibm.com>
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Kylene Hall <kjhall@us.ibm.com>
+ *
+ * Copyright (C) 2013 Obsidian Research Corp
+ * Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
+ *
+ * sysfs filesystem inspection interface to the TPM
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ */
+#include <linux/device.h>
+#include "tpm.h"
+
+/* XXX for now this helper is duplicated in tpm-interface.c */
+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, (u8 *) cmd, len);
+ if (len < 0)
+ return len;
+ else if (len < TPM_HEADER_SIZE)
+ return -EFAULT;
+
+ err = be32_to_cpu(cmd->header.out.return_code);
+ if (err != 0 && desc)
+ dev_err(chip->dev, "A TPM error (%d) occurred %s\n", err, desc);
+
+ return err;
+}
+
+#define READ_PUBEK_RESULT_SIZE 314
+#define TPM_ORD_READPUBEK cpu_to_be32(124)
+static struct tpm_input_header tpm_readpubek_header = {
+ .tag = TPM_TAG_RQU_COMMAND,
+ .length = cpu_to_be32(30),
+ .ordinal = TPM_ORD_READPUBEK
+};
+static ssize_t pubek_show(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);
+
+ 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;
+
+ /*
+ ignore header 10 bytes
+ algorithm 32 bits (1 == RSA )
+ encscheme 16 bits
+ sigscheme 16 bits
+ parameters (RSA 12->bytes: keybit, #primes, expbit)
+ keylenbytes 32 bits
+ 256 byte modulus
+ ignore checksum 20 bytes
+ */
+ data = tpm_cmd.params.readpubek_out_buffer;
+ str +=
+ sprintf(str,
+ "Algorithm: %02X %02X %02X %02X\n"
+ "Encscheme: %02X %02X\n"
+ "Sigscheme: %02X %02X\n"
+ "Parameters: %02X %02X %02X %02X "
+ "%02X %02X %02X %02X "
+ "%02X %02X %02X %02X\n"
+ "Modulus length: %d\n"
+ "Modulus:\n",
+ data[0], data[1], data[2], data[3],
+ data[4], data[5],
+ data[6], data[7],
+ data[12], data[13], data[14], data[15],
+ data[16], data[17], data[18], data[19],
+ data[20], data[21], data[22], data[23],
+ be32_to_cpu(*((__be32 *) (data + 24))));
+
+ for (i = 0; i < 256; i++) {
+ str += sprintf(str, "%02X ", data[i + 28]);
+ if ((i + 1) % 16 == 0)
+ str += sprintf(str, "\n");
+ }
+out:
+ rc = str - buf;
+ return rc;
+}
+static DEVICE_ATTR_RO(pubek);
+
+static ssize_t pcrs_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ cap_t cap;
+ u8 digest[TPM_DIGEST_SIZE];
+ ssize_t rc;
+ int i, j, num_pcrs;
+ char *str = buf;
+ struct tpm_chip *chip = dev_get_drvdata(dev);
+
+ rc = tpm_getcap(dev, TPM_CAP_PROP_PCR, &cap,
+ "attempting to determine the number of PCRS");
+ if (rc)
+ return 0;
+
+ num_pcrs = be32_to_cpu(cap.num_pcrs);
+ for (i = 0; i < num_pcrs; i++) {
+ rc = tpm_pcr_read_dev(chip, i, digest);
+ if (rc)
+ break;
+ str += sprintf(str, "PCR-%02d: ", i);
+ for (j = 0; j < TPM_DIGEST_SIZE; j++)
+ str += sprintf(str, "%02X ", digest[j]);
+ str += sprintf(str, "\n");
+ }
+ return str - buf;
+}
+static DEVICE_ATTR_RO(pcrs);
+
+static ssize_t enabled_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ cap_t cap;
+ ssize_t rc;
+
+ 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", !cap.perm_flags.disable);
+ return rc;
+}
+static DEVICE_ATTR_RO(enabled);
+
+static ssize_t active_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ cap_t cap;
+ ssize_t rc;
+
+ 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", !cap.perm_flags.deactivated);
+ return rc;
+}
+static DEVICE_ATTR_RO(active);
+
+static ssize_t owned_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ cap_t cap;
+ ssize_t rc;
+
+ rc = tpm_getcap(dev, TPM_CAP_PROP_OWNER, &cap,
+ "attempting to determine the owner state");
+ if (rc)
+ return 0;
+
+ rc = sprintf(buf, "%d\n", cap.owned);
+ return rc;
+}
+static DEVICE_ATTR_RO(owned);
+
+static ssize_t temp_deactivated_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ cap_t cap;
+ ssize_t rc;
+
+ rc = tpm_getcap(dev, TPM_CAP_FLAG_VOL, &cap,
+ "attempting to determine the temporary state");
+ if (rc)
+ return 0;
+
+ rc = sprintf(buf, "%d\n", cap.stclear_flags.deactivated);
+ return rc;
+}
+static DEVICE_ATTR_RO(temp_deactivated);
+
+static ssize_t caps_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ cap_t cap;
+ ssize_t rc;
+ char *str = buf;
+
+ 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(cap.manufacturer_id));
+
+ /* Try to get a TPM version 1.2 TPM_CAP_VERSION_INFO */
+ rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap,
+ "attempting to determine the 1.2 version");
+ if (!rc) {
+ str += sprintf(str,
+ "TCG version: %d.%d\nFirmware version: %d.%d\n",
+ cap.tpm_version_1_2.Major,
+ cap.tpm_version_1_2.Minor,
+ cap.tpm_version_1_2.revMajor,
+ cap.tpm_version_1_2.revMinor);
+ } else {
+ /* Otherwise just use TPM_STRUCT_VER */
+ rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
+ "attempting to determine the 1.1 version");
+ if (rc)
+ return 0;
+ str += sprintf(str,
+ "TCG version: %d.%d\nFirmware version: %d.%d\n",
+ cap.tpm_version.Major,
+ cap.tpm_version.Minor,
+ cap.tpm_version.revMajor,
+ cap.tpm_version.revMinor);
+ }
+
+ return str - buf;
+}
+static DEVICE_ATTR_RO(caps);
+
+static ssize_t cancel_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct tpm_chip *chip = dev_get_drvdata(dev);
+ if (chip == NULL)
+ return 0;
+
+ chip->ops->cancel(chip);
+ return count;
+}
+static DEVICE_ATTR_WO(cancel);
+
+static ssize_t durations_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct tpm_chip *chip = dev_get_drvdata(dev);
+
+ if (chip->vendor.duration[TPM_LONG] == 0)
+ return 0;
+
+ return sprintf(buf, "%d %d %d [%s]\n",
+ jiffies_to_usecs(chip->vendor.duration[TPM_SHORT]),
+ jiffies_to_usecs(chip->vendor.duration[TPM_MEDIUM]),
+ jiffies_to_usecs(chip->vendor.duration[TPM_LONG]),
+ chip->vendor.duration_adjusted
+ ? "adjusted" : "original");
+}
+static DEVICE_ATTR_RO(durations);
+
+static ssize_t timeouts_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct tpm_chip *chip = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d %d %d %d [%s]\n",
+ jiffies_to_usecs(chip->vendor.timeout_a),
+ jiffies_to_usecs(chip->vendor.timeout_b),
+ jiffies_to_usecs(chip->vendor.timeout_c),
+ jiffies_to_usecs(chip->vendor.timeout_d),
+ chip->vendor.timeout_adjusted
+ ? "adjusted" : "original");
+}
+static DEVICE_ATTR_RO(timeouts);
+
+static struct attribute *tpm_dev_attrs[] = {
+ &dev_attr_pubek.attr,
+ &dev_attr_pcrs.attr,
+ &dev_attr_enabled.attr,
+ &dev_attr_active.attr,
+ &dev_attr_owned.attr,
+ &dev_attr_temp_deactivated.attr,
+ &dev_attr_caps.attr,
+ &dev_attr_cancel.attr,
+ &dev_attr_durations.attr,
+ &dev_attr_timeouts.attr,
+ NULL,
+};
+
+static const struct attribute_group tpm_dev_group = {
+ .attrs = tpm_dev_attrs,
+};
+
+int tpm_sysfs_add_device(struct tpm_chip *chip)
+{
+ int err;
+ err = sysfs_create_group(&chip->dev->kobj,
+ &tpm_dev_group);
+
+ if (err)
+ dev_err(chip->dev,
+ "failed to create sysfs attributes, %d\n", err);
+ return err;
+}
+
+void tpm_sysfs_del_device(struct tpm_chip *chip)
+{
+ sysfs_remove_group(&chip->dev->kobj, &tpm_dev_group);
+}
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index f32847872193..e4d0888d2eab 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -46,6 +46,14 @@ enum tpm_addr {
TPM_ADDR = 0x4E,
};
+/* Indexes the duration array */
+enum tpm_duration {
+ TPM_SHORT = 0,
+ TPM_MEDIUM = 1,
+ TPM_LONG = 2,
+ TPM_UNDEFINED,
+};
+
#define TPM_WARN_RETRY 0x800
#define TPM_WARN_DOING_SELFTEST 0x802
#define TPM_ERR_DEACTIVATED 0x6
@@ -53,33 +61,9 @@ enum tpm_addr {
#define TPM_ERR_INVALID_POSTINIT 38
#define TPM_HEADER_SIZE 10
-extern ssize_t tpm_show_pubek(struct device *, struct device_attribute *attr,
- char *);
-extern ssize_t tpm_show_pcrs(struct device *, struct device_attribute *attr,
- char *);
-extern ssize_t tpm_show_caps(struct device *, struct device_attribute *attr,
- char *);
-extern ssize_t tpm_store_cancel(struct device *, struct device_attribute *attr,
- const char *, size_t);
-extern ssize_t tpm_show_enabled(struct device *, struct device_attribute *attr,
- char *);
-extern ssize_t tpm_show_active(struct device *, struct device_attribute *attr,
- char *);
-extern ssize_t tpm_show_owned(struct device *, struct device_attribute *attr,
- char *);
-extern ssize_t tpm_show_temp_deactivated(struct device *,
- struct device_attribute *attr, char *);
-extern ssize_t tpm_show_durations(struct device *,
- struct device_attribute *attr, char *);
-extern ssize_t tpm_show_timeouts(struct device *,
- struct device_attribute *attr, char *);
-
struct tpm_chip;
struct tpm_vendor_specific {
- const u8 req_complete_mask;
- const u8 req_complete_val;
- bool (*req_canceled)(struct tpm_chip *chip, u8 status);
void __iomem *iobase; /* ioremapped address */
unsigned long base; /* TPM base address */
@@ -89,13 +73,7 @@ struct tpm_vendor_specific {
int region_size;
int have_region;
- int (*recv) (struct tpm_chip *, u8 *, size_t);
- int (*send) (struct tpm_chip *, u8 *, size_t);
- void (*cancel) (struct tpm_chip *);
- u8 (*status) (struct tpm_chip *);
- void (*release) (struct device *);
struct miscdevice miscdev;
- struct attribute_group *attr_group;
struct list_head list;
int locality;
unsigned long timeout_a, timeout_b, timeout_c, timeout_d; /* jiffies */
@@ -118,19 +96,13 @@ struct tpm_vendor_specific {
struct tpm_chip {
struct device *dev; /* Device stuff */
+ const struct tpm_class_ops *ops;
int dev_num; /* /dev/tpm# */
char devname[7];
unsigned long is_open; /* only one allowed */
int time_expired;
- /* Data passed to and from the tpm via the read/write calls */
- u8 *data_buffer;
- atomic_t data_pending;
- struct mutex buffer_mutex;
-
- struct timer_list user_read_timer; /* user needs to claim result */
- struct work_struct work;
struct mutex tpm_mutex; /* tpm is processing */
struct tpm_vendor_specific vendor;
@@ -171,6 +143,8 @@ struct tpm_output_header {
__be32 return_code;
} __packed;
+#define TPM_TAG_RQU_COMMAND cpu_to_be16(193)
+
struct stclear_flags_t {
__be16 tag;
u8 deactivated;
@@ -244,6 +218,24 @@ typedef union {
struct duration_t duration;
} cap_t;
+enum tpm_capabilities {
+ 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 = 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),
+
+};
+
struct tpm_getcap_params_in {
__be32 cap;
__be32 subcap_size;
@@ -323,25 +315,28 @@ struct tpm_cmd_t {
ssize_t tpm_getcap(struct device *, __be32, cap_t *, const char *);
+ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
+ size_t bufsiz);
extern int tpm_get_timeouts(struct tpm_chip *);
extern void tpm_gen_interrupt(struct tpm_chip *);
extern int tpm_do_selftest(struct tpm_chip *);
extern unsigned long tpm_calc_ordinal_duration(struct tpm_chip *, u32);
extern struct tpm_chip* tpm_register_hardware(struct device *,
- const struct tpm_vendor_specific *);
-extern int tpm_open(struct inode *, struct file *);
-extern int tpm_release(struct inode *, struct file *);
-extern void tpm_dev_release(struct device *dev);
+ const struct tpm_class_ops *ops);
extern void tpm_dev_vendor_release(struct tpm_chip *);
-extern ssize_t tpm_write(struct file *, const char __user *, size_t,
- loff_t *);
-extern ssize_t tpm_read(struct file *, char __user *, size_t, loff_t *);
extern void tpm_remove_hardware(struct device *);
extern int tpm_pm_suspend(struct device *);
extern int tpm_pm_resume(struct device *);
extern int wait_for_tpm_stat(struct tpm_chip *, u8, unsigned long,
wait_queue_head_t *, bool);
+int tpm_dev_add_device(struct tpm_chip *chip);
+void tpm_dev_del_device(struct tpm_chip *chip);
+int tpm_sysfs_add_device(struct tpm_chip *chip);
+void tpm_sysfs_del_device(struct tpm_chip *chip);
+
+int tpm_pcr_read_dev(struct tpm_chip *chip, int pcr_idx, u8 *res_buf);
+
#ifdef CONFIG_ACPI
extern int tpm_add_ppi(struct kobject *);
extern void tpm_remove_ppi(struct kobject *);
diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index c9a528d25d22..6069d13ae4ac 100644
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -121,31 +121,7 @@ static bool tpm_atml_req_canceled(struct tpm_chip *chip, u8 status)
return (status == ATML_STATUS_READY);
}
-static const struct file_operations atmel_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR |S_IWGRP, NULL, tpm_store_cancel);
-
-static struct attribute* atmel_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- NULL,
-};
-
-static struct attribute_group atmel_attr_grp = { .attrs = atmel_attrs };
-
-static const struct tpm_vendor_specific tpm_atmel = {
+static const struct tpm_class_ops tpm_atmel = {
.recv = tpm_atml_recv,
.send = tpm_atml_send,
.cancel = tpm_atml_cancel,
@@ -153,8 +129,6 @@ static const struct tpm_vendor_specific tpm_atmel = {
.req_complete_mask = ATML_STATUS_BUSY | ATML_STATUS_DATA_AVAIL,
.req_complete_val = ATML_STATUS_DATA_AVAIL,
.req_canceled = tpm_atml_req_canceled,
- .attr_group = &atmel_attr_grp,
- .miscdev = { .fops = &atmel_ops, },
};
static struct platform_device *pdev;
diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c
index c3cd7fe481a1..77272925dee6 100644
--- a/drivers/char/tpm/tpm_i2c_atmel.c
+++ b/drivers/char/tpm/tpm_i2c_atmel.c
@@ -135,50 +135,12 @@ static u8 i2c_atmel_read_status(struct tpm_chip *chip)
return ATMEL_STS_OK;
}
-static const struct file_operations i2c_atmel_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
-static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
-static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
-static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
-static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-
-static struct attribute *i2c_atmel_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_enabled.attr,
- &dev_attr_active.attr,
- &dev_attr_owned.attr,
- &dev_attr_temp_deactivated.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- &dev_attr_durations.attr,
- &dev_attr_timeouts.attr,
- NULL,
-};
-
-static struct attribute_group i2c_atmel_attr_grp = {
- .attrs = i2c_atmel_attrs
-};
-
static bool i2c_atmel_req_canceled(struct tpm_chip *chip, u8 status)
{
- return 0;
+ return false;
}
-static const struct tpm_vendor_specific i2c_atmel = {
+static const struct tpm_class_ops i2c_atmel = {
.status = i2c_atmel_read_status,
.recv = i2c_atmel_recv,
.send = i2c_atmel_send,
@@ -186,8 +148,6 @@ static const struct tpm_vendor_specific i2c_atmel = {
.req_complete_mask = ATMEL_STS_OK,
.req_complete_val = ATMEL_STS_OK,
.req_canceled = i2c_atmel_req_canceled,
- .attr_group = &i2c_atmel_attr_grp,
- .miscdev.fops = &i2c_atmel_ops,
};
static int i2c_atmel_probe(struct i2c_client *client,
diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c
index fefd2aa5c81e..52b9b2b2f300 100644
--- a/drivers/char/tpm/tpm_i2c_infineon.c
+++ b/drivers/char/tpm/tpm_i2c_infineon.c
@@ -566,45 +566,7 @@ static bool tpm_tis_i2c_req_canceled(struct tpm_chip *chip, u8 status)
return (status == TPM_STS_COMMAND_READY);
}
-static const struct file_operations tis_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
-static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
-static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
-static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
-static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-
-static struct attribute *tis_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_enabled.attr,
- &dev_attr_active.attr,
- &dev_attr_owned.attr,
- &dev_attr_temp_deactivated.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- &dev_attr_durations.attr,
- &dev_attr_timeouts.attr,
- NULL,
-};
-
-static struct attribute_group tis_attr_grp = {
- .attrs = tis_attrs
-};
-
-static struct tpm_vendor_specific tpm_tis_i2c = {
+static const struct tpm_class_ops tpm_tis_i2c = {
.status = tpm_tis_i2c_status,
.recv = tpm_tis_i2c_recv,
.send = tpm_tis_i2c_send,
@@ -612,8 +574,6 @@ static struct tpm_vendor_specific tpm_tis_i2c = {
.req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_canceled = tpm_tis_i2c_req_canceled,
- .attr_group = &tis_attr_grp,
- .miscdev.fops = &tis_ops,
};
static int tpm_tis_i2c_init(struct device *dev)
diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c
index 6276fea01ff0..7b158efd49f7 100644
--- a/drivers/char/tpm/tpm_i2c_nuvoton.c
+++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
@@ -178,7 +178,6 @@ static int i2c_nuvoton_wait_for_stat(struct tpm_chip *chip, u8 mask, u8 value,
{
if (chip->vendor.irq && queue) {
s32 rc;
- DEFINE_WAIT(wait);
struct priv_data *priv = chip->vendor.priv;
unsigned int cur_intrs = priv->intrs;
@@ -456,45 +455,7 @@ static bool i2c_nuvoton_req_canceled(struct tpm_chip *chip, u8 status)
return (status == TPM_STS_COMMAND_READY);
}
-static const struct file_operations i2c_nuvoton_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
-static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
-static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
-static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
-static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-
-static struct attribute *i2c_nuvoton_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_enabled.attr,
- &dev_attr_active.attr,
- &dev_attr_owned.attr,
- &dev_attr_temp_deactivated.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- &dev_attr_durations.attr,
- &dev_attr_timeouts.attr,
- NULL,
-};
-
-static struct attribute_group i2c_nuvoton_attr_grp = {
- .attrs = i2c_nuvoton_attrs
-};
-
-static const struct tpm_vendor_specific tpm_i2c = {
+static const struct tpm_class_ops tpm_i2c = {
.status = i2c_nuvoton_read_status,
.recv = i2c_nuvoton_recv,
.send = i2c_nuvoton_send,
@@ -502,8 +463,6 @@ static const struct tpm_vendor_specific tpm_i2c = {
.req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_canceled = i2c_nuvoton_req_canceled,
- .attr_group = &i2c_nuvoton_attr_grp,
- .miscdev.fops = &i2c_nuvoton_ops,
};
/* The only purpose for the handler is to signal to any waiting threads that
diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c
index a0d6ceb5d005..5b0dd8ef74c0 100644
--- a/drivers/char/tpm/tpm_i2c_stm_st33.c
+++ b/drivers/char/tpm/tpm_i2c_stm_st33.c
@@ -410,6 +410,8 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
&chip->vendor.read_queue)
== 0) {
burstcnt = get_burstcount(chip);
+ if (burstcnt < 0)
+ return burstcnt;
len = min_t(int, burstcnt, count - size);
I2C_READ_DATA(client, TPM_DATA_FIFO, buf + size, len);
size += len;
@@ -451,7 +453,8 @@ static irqreturn_t tpm_ioserirq_handler(int irq, void *dev_id)
static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
size_t len)
{
- u32 status, burstcnt = 0, i, size;
+ u32 status, i, size;
+ int burstcnt = 0;
int ret;
u8 data;
struct i2c_client *client;
@@ -482,6 +485,8 @@ static int tpm_stm_i2c_send(struct tpm_chip *chip, unsigned char *buf,
for (i = 0; i < len - 1;) {
burstcnt = get_burstcount(chip);
+ if (burstcnt < 0)
+ return burstcnt;
size = min_t(int, len - i - 1, burstcnt);
ret = I2C_WRITE_DATA(client, TPM_DATA_FIFO, buf, size);
if (ret < 0)
@@ -559,7 +564,7 @@ static int tpm_stm_i2c_recv(struct tpm_chip *chip, unsigned char *buf,
}
out:
- chip->vendor.cancel(chip);
+ chip->ops->cancel(chip);
release_locality(chip);
return size;
}
@@ -569,40 +574,7 @@ static bool tpm_st33_i2c_req_canceled(struct tpm_chip *chip, u8 status)
return (status == TPM_STS_COMMAND_READY);
}
-static const struct file_operations tpm_st33_i2c_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = tpm_read,
- .write = tpm_write,
- .open = tpm_open,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
-static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
-static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
-static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-
-static struct attribute *stm_tpm_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_enabled.attr,
- &dev_attr_active.attr,
- &dev_attr_owned.attr,
- &dev_attr_temp_deactivated.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr, NULL,
-};
-
-static struct attribute_group stm_tpm_attr_grp = {
- .attrs = stm_tpm_attrs
-};
-
-static struct tpm_vendor_specific st_i2c_tpm = {
+static const struct tpm_class_ops st_i2c_tpm = {
.send = tpm_stm_i2c_send,
.recv = tpm_stm_i2c_recv,
.cancel = tpm_stm_i2c_cancel,
@@ -610,8 +582,6 @@ static struct tpm_vendor_specific st_i2c_tpm = {
.req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_canceled = tpm_st33_i2c_req_canceled,
- .attr_group = &stm_tpm_attr_grp,
- .miscdev = {.fops = &tpm_st33_i2c_fops,},
};
static int interrupts;
@@ -837,7 +807,7 @@ static int tpm_st33_i2c_pm_resume(struct device *dev)
if (power_mgt) {
gpio_set_value(pin_infos->io_lpcpd, 1);
ret = wait_for_serirq_timeout(chip,
- (chip->vendor.status(chip) &
+ (chip->ops->status(chip) &
TPM_STS_VALID) == TPM_STS_VALID,
chip->vendor.timeout_b);
} else {
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 2783a42aa732..af74c57e5090 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -403,43 +403,7 @@ static bool tpm_ibmvtpm_req_canceled(struct tpm_chip *chip, u8 status)
return (status == 0);
}
-static const struct file_operations ibmvtpm_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
-static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
-static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
-static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated,
- NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
-static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-
-static struct attribute *ibmvtpm_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_enabled.attr,
- &dev_attr_active.attr,
- &dev_attr_owned.attr,
- &dev_attr_temp_deactivated.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- &dev_attr_durations.attr,
- &dev_attr_timeouts.attr, NULL,
-};
-
-static struct attribute_group ibmvtpm_attr_grp = { .attrs = ibmvtpm_attrs };
-
-static const struct tpm_vendor_specific tpm_ibmvtpm = {
+static const struct tpm_class_ops tpm_ibmvtpm = {
.recv = tpm_ibmvtpm_recv,
.send = tpm_ibmvtpm_send,
.cancel = tpm_ibmvtpm_cancel,
@@ -447,8 +411,6 @@ static const struct tpm_vendor_specific tpm_ibmvtpm = {
.req_complete_mask = 0,
.req_complete_val = 0,
.req_canceled = tpm_ibmvtpm_req_canceled,
- .attr_group = &ibmvtpm_attr_grp,
- .miscdev = { .fops = &ibmvtpm_ops, },
};
static const struct dev_pm_ops tpm_ibmvtpm_pm_ops = {
@@ -507,7 +469,6 @@ static void ibmvtpm_crq_process(struct ibmvtpm_crq *crq,
dev_err(ibmvtpm->dev, "Unknown crq message type: %d\n", crq->msg);
return;
}
- return;
case IBMVTPM_VALID_CMD:
switch (crq->msg) {
case VTPM_GET_RTCE_BUFFER_SIZE_RES:
diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c
index 2b480c2960bb..dc0a2554034e 100644
--- a/drivers/char/tpm/tpm_infineon.c
+++ b/drivers/char/tpm/tpm_infineon.c
@@ -371,39 +371,13 @@ static u8 tpm_inf_status(struct tpm_chip *chip)
return tpm_data_in(STAT);
}
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-
-static struct attribute *inf_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- NULL,
-};
-
-static struct attribute_group inf_attr_grp = {.attrs = inf_attrs };
-
-static const struct file_operations inf_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static const struct tpm_vendor_specific tpm_inf = {
+static const struct tpm_class_ops tpm_inf = {
.recv = tpm_inf_recv,
.send = tpm_inf_send,
.cancel = tpm_inf_cancel,
.status = tpm_inf_status,
.req_complete_mask = 0,
.req_complete_val = 0,
- .attr_group = &inf_attr_grp,
- .miscdev = {.fops = &inf_ops,},
};
static const struct pnp_device_id tpm_inf_pnp_tbl[] = {
diff --git a/drivers/char/tpm/tpm_nsc.c b/drivers/char/tpm/tpm_nsc.c
index 770c46f8eb30..3179ec9cffdc 100644
--- a/drivers/char/tpm/tpm_nsc.c
+++ b/drivers/char/tpm/tpm_nsc.c
@@ -232,31 +232,7 @@ static bool tpm_nsc_req_canceled(struct tpm_chip *chip, u8 status)
return (status == NSC_STATUS_RDY);
}
-static const struct file_operations nsc_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR|S_IWGRP, NULL, tpm_store_cancel);
-
-static struct attribute * nsc_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- NULL,
-};
-
-static struct attribute_group nsc_attr_grp = { .attrs = nsc_attrs };
-
-static const struct tpm_vendor_specific tpm_nsc = {
+static const struct tpm_class_ops tpm_nsc = {
.recv = tpm_nsc_recv,
.send = tpm_nsc_send,
.cancel = tpm_nsc_cancel,
@@ -264,8 +240,6 @@ static const struct tpm_vendor_specific tpm_nsc = {
.req_complete_mask = NSC_STATUS_OBF,
.req_complete_val = NSC_STATUS_OBF,
.req_canceled = tpm_nsc_req_canceled,
- .attr_group = &nsc_attr_grp,
- .miscdev = { .fops = &nsc_ops, },
};
static struct platform_device *pdev = NULL;
diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index e1f3337a0cf9..2db4419831be 100644
--- a/drivers/char/tpm/tpm_ppi.c
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -172,7 +172,7 @@ static ssize_t tpm_store_ppi_request(struct device *dev,
* is updated with function index from SUBREQ to SUBREQ2 since PPI
* version 1.1
*/
- if (strcmp(version, "1.1") == -1)
+ if (strcmp(version, "1.1") < 0)
params[2].integer.value = TPM_PPI_FN_SUBREQ;
else
params[2].integer.value = TPM_PPI_FN_SUBREQ2;
@@ -182,7 +182,7 @@ static ssize_t tpm_store_ppi_request(struct device *dev,
* string/package type. For PPI version 1.0 and 1.1, use buffer type
* for compatibility, and use package type since 1.2 according to spec.
*/
- if (strcmp(version, "1.2") == -1) {
+ if (strcmp(version, "1.2") < 0) {
params[3].type = ACPI_TYPE_BUFFER;
params[3].buffer.length = sizeof(req);
sscanf(buf, "%d", &req);
@@ -248,7 +248,7 @@ static ssize_t tpm_show_ppi_transition_action(struct device *dev,
* (e.g. Capella with PPI 1.0) need integer/string/buffer type, so for
* compatibility, define params[3].type as buffer, if PPI version < 1.2
*/
- if (strcmp(version, "1.2") == -1) {
+ if (strcmp(version, "1.2") < 0) {
params[3].type = ACPI_TYPE_BUFFER;
params[3].buffer.length = 0;
params[3].buffer.pointer = NULL;
@@ -390,7 +390,7 @@ static ssize_t show_ppi_operations(char *buf, u32 start, u32 end)
kfree(output.pointer);
output.length = ACPI_ALLOCATE_BUFFER;
output.pointer = NULL;
- if (strcmp(version, "1.2") == -1)
+ if (strcmp(version, "1.2") < 0)
return -EPERM;
params[2].integer.value = TPM_PPI_FN_GETOPR;
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 1b74459c0723..a9ed2270c25d 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -432,45 +432,7 @@ static bool tpm_tis_req_canceled(struct tpm_chip *chip, u8 status)
}
}
-static const struct file_operations tis_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
-static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
-static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
-static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated,
- NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
-static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-
-static struct attribute *tis_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_enabled.attr,
- &dev_attr_active.attr,
- &dev_attr_owned.attr,
- &dev_attr_temp_deactivated.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- &dev_attr_durations.attr,
- &dev_attr_timeouts.attr, NULL,
-};
-
-static struct attribute_group tis_attr_grp = {
- .attrs = tis_attrs
-};
-
-static struct tpm_vendor_specific tpm_tis = {
+static const struct tpm_class_ops tpm_tis = {
.status = tpm_tis_status,
.recv = tpm_tis_recv,
.send = tpm_tis_send,
@@ -478,9 +440,6 @@ static struct tpm_vendor_specific tpm_tis = {
.req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
.req_canceled = tpm_tis_req_canceled,
- .attr_group = &tis_attr_grp,
- .miscdev = {
- .fops = &tis_ops,},
};
static irqreturn_t tis_int_probe(int irq, void *dev_id)
@@ -743,7 +702,7 @@ out_err:
return rc;
}
-#if defined(CONFIG_PNP) || defined(CONFIG_PM_SLEEP)
+#ifdef CONFIG_PM_SLEEP
static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
{
u32 intmask;
@@ -764,9 +723,7 @@ static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
iowrite32(intmask,
chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality));
}
-#endif
-#ifdef CONFIG_PM_SLEEP
static int tpm_tis_resume(struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
@@ -835,11 +792,9 @@ static struct pnp_driver tis_pnp_driver = {
.id_table = tpm_pnp_tbl,
.probe = tpm_tis_pnp_init,
.remove = tpm_tis_pnp_remove,
-#ifdef CONFIG_PM_SLEEP
.driver = {
.pm = &tpm_tis_pm,
},
-#endif
};
#define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2
diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c
index c8ff4df81779..92b097064df5 100644
--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -143,46 +143,7 @@ static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
return length;
}
-static const struct file_operations vtpm_ops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = tpm_open,
- .read = tpm_read,
- .write = tpm_write,
- .release = tpm_release,
-};
-
-static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
-static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
-static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
-static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
-static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
-static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated,
- NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
-static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
-static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
-static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-
-static struct attribute *vtpm_attrs[] = {
- &dev_attr_pubek.attr,
- &dev_attr_pcrs.attr,
- &dev_attr_enabled.attr,
- &dev_attr_active.attr,
- &dev_attr_owned.attr,
- &dev_attr_temp_deactivated.attr,
- &dev_attr_caps.attr,
- &dev_attr_cancel.attr,
- &dev_attr_durations.attr,
- &dev_attr_timeouts.attr,
- NULL,
-};
-
-static struct attribute_group vtpm_attr_grp = {
- .attrs = vtpm_attrs,
-};
-
-static const struct tpm_vendor_specific tpm_vtpm = {
+static const struct tpm_class_ops tpm_vtpm = {
.status = vtpm_status,
.recv = vtpm_recv,
.send = vtpm_send,
@@ -190,10 +151,6 @@ static const struct tpm_vendor_specific tpm_vtpm = {
.req_complete_mask = VTPM_STATUS_IDLE | VTPM_STATUS_RESULT,
.req_complete_val = VTPM_STATUS_IDLE | VTPM_STATUS_RESULT,
.req_canceled = vtpm_req_canceled,
- .attr_group = &vtpm_attr_grp,
- .miscdev = {
- .fops = &vtpm_ops,
- },
};
static irqreturn_t tpmif_interrupt(int dummy, void *dev_id)
diff --git a/include/linux/tpm.h b/include/linux/tpm.h
index 9a9051bb1a03..fff1d0976f80 100644
--- a/include/linux/tpm.h
+++ b/include/linux/tpm.h
@@ -29,6 +29,18 @@
*/
#define TPM_ANY_NUM 0xFFFF
+struct tpm_chip;
+
+struct tpm_class_ops {
+ const u8 req_complete_mask;
+ const u8 req_complete_val;
+ bool (*req_canceled)(struct tpm_chip *chip, u8 status);
+ int (*recv) (struct tpm_chip *chip, u8 *buf, size_t len);
+ int (*send) (struct tpm_chip *chip, u8 *buf, size_t len);
+ void (*cancel) (struct tpm_chip *chip);
+ u8 (*status) (struct tpm_chip *chip);
+};
+
#if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE)
extern int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf);
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index c38adcc910fb..1683bbf289a4 100644
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -162,8 +162,7 @@ void ima_show_template_sig(struct seq_file *m, enum ima_show_type show,
}
static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo,
- struct ima_field_data *field_data,
- bool size_limit)
+ struct ima_field_data *field_data)
{
/*
* digest formats:
@@ -176,11 +175,10 @@ static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo,
enum data_formats fmt = DATA_FMT_DIGEST;
u32 offset = 0;
- if (!size_limit) {
+ if (hash_algo < HASH_ALGO__LAST) {
fmt = DATA_FMT_DIGEST_WITH_ALGO;
- if (hash_algo < HASH_ALGO__LAST)
- offset += snprintf(buffer, CRYPTO_MAX_ALG_NAME + 1,
- "%s", hash_algo_name[hash_algo]);
+ offset += snprintf(buffer, CRYPTO_MAX_ALG_NAME + 1, "%s",
+ hash_algo_name[hash_algo]);
buffer[offset] = ':';
offset += 2;
}
@@ -243,8 +241,8 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
cur_digest = hash.hdr.digest;
cur_digestsize = hash.hdr.length;
out:
- return ima_eventdigest_init_common(cur_digest, cur_digestsize, -1,
- field_data, true);
+ return ima_eventdigest_init_common(cur_digest, cur_digestsize,
+ HASH_ALGO__LAST, field_data);
}
/*
@@ -255,7 +253,7 @@ int ima_eventdigest_ng_init(struct integrity_iint_cache *iint,
struct evm_ima_xattr_data *xattr_value,
int xattr_len, struct ima_field_data *field_data)
{
- u8 *cur_digest = NULL, hash_algo = HASH_ALGO__LAST;
+ u8 *cur_digest = NULL, hash_algo = HASH_ALGO_SHA1;
u32 cur_digestsize = 0;
/* If iint is NULL, we are recording a violation. */
@@ -268,7 +266,7 @@ int ima_eventdigest_ng_init(struct integrity_iint_cache *iint,
hash_algo = iint->ima_hash->algo;
out:
return ima_eventdigest_init_common(cur_digest, cur_digestsize,
- hash_algo, field_data, false);
+ hash_algo, field_data);
}
static int ima_eventname_init_common(struct integrity_iint_cache *iint,
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 57b0b49f4e6e..4b34847208cc 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -82,7 +82,6 @@
#include <linux/syslog.h>
#include <linux/user_namespace.h>
#include <linux/export.h>
-#include <linux/security.h>
#include <linux/msg.h>
#include <linux/shm.h>
@@ -4490,14 +4489,10 @@ static int selinux_inet_conn_request(struct sock *sk, struct sk_buff *skb,
{
struct sk_security_struct *sksec = sk->sk_security;
int err;
- u16 family = sk->sk_family;
+ u16 family = req->rsk_ops->family;
u32 connsid;
u32 peersid;
- /* handle mapped IPv4 packets arriving via IPv6 sockets */
- if (family == PF_INET6 && skb->protocol == htons(ETH_P_IP))
- family = PF_INET;
-
err = selinux_skb_peerlbl_sid(skb, family, &peersid);
if (err)
return err;
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index fe341ae37004..8ed8daf7f1ee 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -33,13 +33,14 @@
#define POLICYDB_VERSION_ROLETRANS 26
#define POLICYDB_VERSION_NEW_OBJECT_DEFAULTS 27
#define POLICYDB_VERSION_DEFAULT_TYPE 28
+#define POLICYDB_VERSION_CONSTRAINT_NAMES 29
/* Range of policy versions we understand*/
#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
#ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
#define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
#else
-#define POLICYDB_VERSION_MAX POLICYDB_VERSION_DEFAULT_TYPE
+#define POLICYDB_VERSION_MAX POLICYDB_VERSION_CONSTRAINT_NAMES
#endif
/* Mask for just the mount related flags */
diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index 6235d052338b..0364120d1ec8 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -101,6 +101,32 @@ static struct netlbl_lsm_secattr *selinux_netlbl_sock_genattr(struct sock *sk)
}
/**
+ * selinux_netlbl_sock_getattr - Get the cached NetLabel secattr
+ * @sk: the socket
+ * @sid: the SID
+ *
+ * Query the socket's cached secattr and if the SID matches the cached value
+ * return the cache, otherwise return NULL.
+ *
+ */
+static struct netlbl_lsm_secattr *selinux_netlbl_sock_getattr(
+ const struct sock *sk,
+ u32 sid)
+{
+ struct sk_security_struct *sksec = sk->sk_security;
+ struct netlbl_lsm_secattr *secattr = sksec->nlbl_secattr;
+
+ if (secattr == NULL)
+ return NULL;
+
+ if ((secattr->flags & NETLBL_SECATTR_SECID) &&
+ (secattr->attr.secid == sid))
+ return secattr;
+
+ return NULL;
+}
+
+/**
* selinux_netlbl_cache_invalidate - Invalidate the NetLabel cache
*
* Description:
@@ -224,7 +250,7 @@ int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
struct sk_security_struct *sksec = sk->sk_security;
if (sksec->nlbl_state != NLBL_REQSKB)
return 0;
- secattr = sksec->nlbl_secattr;
+ secattr = selinux_netlbl_sock_getattr(sk, sid);
}
if (secattr == NULL) {
secattr = &secattr_storage;
@@ -410,6 +436,9 @@ int selinux_netlbl_socket_setsockopt(struct socket *sock,
sksec->nlbl_state == NLBL_CONNLABELED)) {
netlbl_secattr_init(&secattr);
lock_sock(sk);
+ /* call the netlabel function directly as we want to see the
+ * on-the-wire label that is assigned via the socket's options
+ * and not the cached netlabel/lsm attributes */
rc = netlbl_sock_getattr(sk, &secattr);
release_sock(sk);
if (rc == 0)
diff --git a/security/selinux/ss/constraint.h b/security/selinux/ss/constraint.h
index 149dda731fd3..96fd947c494b 100644
--- a/security/selinux/ss/constraint.h
+++ b/security/selinux/ss/constraint.h
@@ -48,6 +48,7 @@ struct constraint_expr {
u32 op; /* operator */
struct ebitmap names; /* names */
+ struct type_set *type_names;
struct constraint_expr *next; /* next expression */
};
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index f6195ebde3c9..c0f498842129 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -143,6 +143,11 @@ static struct policydb_compat_info policydb_compat[] = {
.sym_num = SYM_NUM,
.ocon_num = OCON_NUM,
},
+ {
+ .version = POLICYDB_VERSION_CONSTRAINT_NAMES,
+ .sym_num = SYM_NUM,
+ .ocon_num = OCON_NUM,
+ },
};
static struct policydb_compat_info *policydb_lookup_compat(int version)
@@ -613,6 +618,19 @@ static int common_destroy(void *key, void *datum, void *p)
return 0;
}
+static void constraint_expr_destroy(struct constraint_expr *expr)
+{
+ if (expr) {
+ ebitmap_destroy(&expr->names);
+ if (expr->type_names) {
+ ebitmap_destroy(&expr->type_names->types);
+ ebitmap_destroy(&expr->type_names->negset);
+ kfree(expr->type_names);
+ }
+ kfree(expr);
+ }
+}
+
static int cls_destroy(void *key, void *datum, void *p)
{
struct class_datum *cladatum;
@@ -628,10 +646,9 @@ static int cls_destroy(void *key, void *datum, void *p)
while (constraint) {
e = constraint->expr;
while (e) {
- ebitmap_destroy(&e->names);
etmp = e;
e = e->next;
- kfree(etmp);
+ constraint_expr_destroy(etmp);
}
ctemp = constraint;
constraint = constraint->next;
@@ -642,16 +659,14 @@ static int cls_destroy(void *key, void *datum, void *p)
while (constraint) {
e = constraint->expr;
while (e) {
- ebitmap_destroy(&e->names);
etmp = e;
e = e->next;
- kfree(etmp);
+ constraint_expr_destroy(etmp);
}
ctemp = constraint;
constraint = constraint->next;
kfree(ctemp);
}
-
kfree(cladatum->comkey);
}
kfree(datum);
@@ -1156,8 +1171,34 @@ bad:
return rc;
}
-static int read_cons_helper(struct constraint_node **nodep, int ncons,
- int allowxtarget, void *fp)
+static void type_set_init(struct type_set *t)
+{
+ ebitmap_init(&t->types);
+ ebitmap_init(&t->negset);
+}
+
+static int type_set_read(struct type_set *t, void *fp)
+{
+ __le32 buf[1];
+ int rc;
+
+ if (ebitmap_read(&t->types, fp))
+ return -EINVAL;
+ if (ebitmap_read(&t->negset, fp))
+ return -EINVAL;
+
+ rc = next_entry(buf, fp, sizeof(u32));
+ if (rc < 0)
+ return -EINVAL;
+ t->flags = le32_to_cpu(buf[0]);
+
+ return 0;
+}
+
+
+static int read_cons_helper(struct policydb *p,
+ struct constraint_node **nodep,
+ int ncons, int allowxtarget, void *fp)
{
struct constraint_node *c, *lc;
struct constraint_expr *e, *le;
@@ -1225,6 +1266,18 @@ static int read_cons_helper(struct constraint_node **nodep, int ncons,
rc = ebitmap_read(&e->names, fp);
if (rc)
return rc;
+ if (p->policyvers >=
+ POLICYDB_VERSION_CONSTRAINT_NAMES) {
+ e->type_names = kzalloc(sizeof
+ (*e->type_names),
+ GFP_KERNEL);
+ if (!e->type_names)
+ return -ENOMEM;
+ type_set_init(e->type_names);
+ rc = type_set_read(e->type_names, fp);
+ if (rc)
+ return rc;
+ }
break;
default:
return -EINVAL;
@@ -1301,7 +1354,7 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp)
goto bad;
}
- rc = read_cons_helper(&cladatum->constraints, ncons, 0, fp);
+ rc = read_cons_helper(p, &cladatum->constraints, ncons, 0, fp);
if (rc)
goto bad;
@@ -1311,7 +1364,8 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp)
if (rc)
goto bad;
ncons = le32_to_cpu(buf[0]);
- rc = read_cons_helper(&cladatum->validatetrans, ncons, 1, fp);
+ rc = read_cons_helper(p, &cladatum->validatetrans,
+ ncons, 1, fp);
if (rc)
goto bad;
}
@@ -1941,7 +1995,19 @@ static int filename_trans_read(struct policydb *p, void *fp)
if (rc)
goto out;
- hashtab_insert(p->filename_trans, ft, otype);
+ rc = hashtab_insert(p->filename_trans, ft, otype);
+ if (rc) {
+ /*
+ * Do not return -EEXIST to the caller, or the system
+ * will not boot.
+ */
+ if (rc != -EEXIST)
+ goto out;
+ /* But free memory to avoid memory leak. */
+ kfree(ft);
+ kfree(name);
+ kfree(otype);
+ }
}
hash_eval(p->filename_trans, "filenametr");
return 0;
@@ -2753,6 +2819,24 @@ static int common_write(void *vkey, void *datum, void *ptr)
return 0;
}
+static int type_set_write(struct type_set *t, void *fp)
+{
+ int rc;
+ __le32 buf[1];
+
+ if (ebitmap_write(&t->types, fp))
+ return -EINVAL;
+ if (ebitmap_write(&t->negset, fp))
+ return -EINVAL;
+
+ buf[0] = cpu_to_le32(t->flags);
+ rc = put_entry(buf, sizeof(u32), 1, fp);
+ if (rc)
+ return -EINVAL;
+
+ return 0;
+}
+
static int write_cons_helper(struct policydb *p, struct constraint_node *node,
void *fp)
{
@@ -2784,6 +2868,12 @@ static int write_cons_helper(struct policydb *p, struct constraint_node *node,
rc = ebitmap_write(&e->names, fp);
if (rc)
return rc;
+ if (p->policyvers >=
+ POLICYDB_VERSION_CONSTRAINT_NAMES) {
+ rc = type_set_write(e->type_names, fp);
+ if (rc)
+ return rc;
+ }
break;
default:
break;
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h
index da637471d4ce..725d5945a97e 100644
--- a/security/selinux/ss/policydb.h
+++ b/security/selinux/ss/policydb.h
@@ -154,6 +154,17 @@ struct cond_bool_datum {
struct cond_node;
/*
+ * type set preserves data needed to determine constraint info from
+ * policy source. This is not used by the kernel policy but allows
+ * utilities such as audit2allow to determine constraint denials.
+ */
+struct type_set {
+ struct ebitmap types;
+ struct ebitmap negset;
+ u32 flags;
+};
+
+/*
* The configuration data includes security contexts for
* initial SIDs, unlabeled file systems, TCP and UDP port numbers,
* network interfaces, and nodes. This structure stores the
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index d106733ad987..fc5a63a05a1c 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -1831,7 +1831,7 @@ static int security_preserve_bools(struct policydb *p);
*/
int security_load_policy(void *data, size_t len)
{
- struct policydb oldpolicydb, newpolicydb;
+ struct policydb *oldpolicydb, *newpolicydb;
struct sidtab oldsidtab, newsidtab;
struct selinux_mapping *oldmap, *map = NULL;
struct convert_context_args args;
@@ -1840,12 +1840,19 @@ int security_load_policy(void *data, size_t len)
int rc = 0;
struct policy_file file = { data, len }, *fp = &file;
+ oldpolicydb = kzalloc(2 * sizeof(*oldpolicydb), GFP_KERNEL);
+ if (!oldpolicydb) {
+ rc = -ENOMEM;
+ goto out;
+ }
+ newpolicydb = oldpolicydb + 1;
+
if (!ss_initialized) {
avtab_cache_init();
rc = policydb_read(&policydb, fp);
if (rc) {
avtab_cache_destroy();
- return rc;
+ goto out;
}
policydb.len = len;
@@ -1855,14 +1862,14 @@ int security_load_policy(void *data, size_t len)
if (rc) {
policydb_destroy(&policydb);
avtab_cache_destroy();
- return rc;
+ goto out;
}
rc = policydb_load_isids(&policydb, &sidtab);
if (rc) {
policydb_destroy(&policydb);
avtab_cache_destroy();
- return rc;
+ goto out;
}
security_load_policycaps();
@@ -1874,36 +1881,36 @@ int security_load_policy(void *data, size_t len)
selinux_status_update_policyload(seqno);
selinux_netlbl_cache_invalidate();
selinux_xfrm_notify_policyload();
- return 0;
+ goto out;
}
#if 0
sidtab_hash_eval(&sidtab, "sids");
#endif
- rc = policydb_read(&newpolicydb, fp);
+ rc = policydb_read(newpolicydb, fp);
if (rc)
- return rc;
+ goto out;
- newpolicydb.len = len;
+ newpolicydb->len = len;
/* If switching between different policy types, log MLS status */
- if (policydb.mls_enabled && !newpolicydb.mls_enabled)
+ if (policydb.mls_enabled && !newpolicydb->mls_enabled)
printk(KERN_INFO "SELinux: Disabling MLS support...\n");
- else if (!policydb.mls_enabled && newpolicydb.mls_enabled)
+ else if (!policydb.mls_enabled && newpolicydb->mls_enabled)
printk(KERN_INFO "SELinux: Enabling MLS support...\n");
- rc = policydb_load_isids(&newpolicydb, &newsidtab);
+ rc = policydb_load_isids(newpolicydb, &newsidtab);
if (rc) {
printk(KERN_ERR "SELinux: unable to load the initial SIDs\n");
- policydb_destroy(&newpolicydb);
- return rc;
+ policydb_destroy(newpolicydb);
+ goto out;
}
- rc = selinux_set_mapping(&newpolicydb, secclass_map, &map, &map_size);
+ rc = selinux_set_mapping(newpolicydb, secclass_map, &map, &map_size);
if (rc)
goto err;
- rc = security_preserve_bools(&newpolicydb);
+ rc = security_preserve_bools(newpolicydb);
if (rc) {
printk(KERN_ERR "SELinux: unable to preserve booleans\n");
goto err;
@@ -1921,7 +1928,7 @@ int security_load_policy(void *data, size_t len)
* in the new SID table.
*/
args.oldp = &policydb;
- args.newp = &newpolicydb;
+ args.newp = newpolicydb;
rc = sidtab_map(&newsidtab, convert_context, &args);
if (rc) {
printk(KERN_ERR "SELinux: unable to convert the internal"
@@ -1931,12 +1938,12 @@ int security_load_policy(void *data, size_t len)
}
/* Save the old policydb and SID table to free later. */
- memcpy(&oldpolicydb, &policydb, sizeof policydb);
+ memcpy(oldpolicydb, &policydb, sizeof(policydb));
sidtab_set(&oldsidtab, &sidtab);
/* Install the new policydb and SID table. */
write_lock_irq(&policy_rwlock);
- memcpy(&policydb, &newpolicydb, sizeof policydb);
+ memcpy(&policydb, newpolicydb, sizeof(policydb));
sidtab_set(&sidtab, &newsidtab);
security_load_policycaps();
oldmap = current_mapping;
@@ -1946,7 +1953,7 @@ int security_load_policy(void *data, size_t len)
write_unlock_irq(&policy_rwlock);
/* Free the old policydb and SID table. */
- policydb_destroy(&oldpolicydb);
+ policydb_destroy(oldpolicydb);
sidtab_destroy(&oldsidtab);
kfree(oldmap);
@@ -1956,14 +1963,17 @@ int security_load_policy(void *data, size_t len)
selinux_netlbl_cache_invalidate();
selinux_xfrm_notify_policyload();
- return 0;
+ rc = 0;
+ goto out;
err:
kfree(map);
sidtab_destroy(&newsidtab);
- policydb_destroy(&newpolicydb);
- return rc;
+ policydb_destroy(newpolicydb);
+out:
+ kfree(oldpolicydb);
+ return rc;
}
size_t security_policydb_len(void)
diff --git a/security/smack/smack.h b/security/smack/smack.h
index 364cc64fce71..d072fd32212d 100644
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -241,7 +241,8 @@ u32 smack_to_secid(const char *);
extern int smack_cipso_direct;
extern int smack_cipso_mapped;
extern struct smack_known *smack_net_ambient;
-extern char *smack_onlycap;
+extern struct smack_known *smack_onlycap;
+extern struct smack_known *smack_syslog_label;
extern const char *smack_cipso_option;
extern struct smack_known smack_known_floor;
@@ -312,7 +313,7 @@ static inline int smack_privileged(int cap)
if (!capable(cap))
return 0;
- if (smack_onlycap == NULL || smack_onlycap == skp->smk_known)
+ if (smack_onlycap == NULL || smack_onlycap == skp)
return 1;
return 0;
}
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index b0be893ad44d..d814e35987be 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -219,8 +219,6 @@ static int smack_ptrace_traceme(struct task_struct *ptp)
* smack_syslog - Smack approval on syslog
* @type: message type
*
- * Require that the task has the floor label
- *
* Returns 0 on success, error code otherwise.
*/
static int smack_syslog(int typefrom_file)
@@ -231,7 +229,7 @@ static int smack_syslog(int typefrom_file)
if (smack_privileged(CAP_MAC_OVERRIDE))
return 0;
- if (skp != &smack_known_floor)
+ if (smack_syslog_label != NULL && smack_syslog_label != skp)
rc = -EACCES;
return rc;
@@ -341,10 +339,12 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
struct inode *inode = root->d_inode;
struct superblock_smack *sp = sb->s_security;
struct inode_smack *isp;
+ struct smack_known *skp;
char *op;
char *commap;
char *nsp;
int transmute = 0;
+ int specified = 0;
if (sp->smk_initialized)
return 0;
@@ -359,34 +359,56 @@ static int smack_sb_kern_mount(struct super_block *sb, int flags, void *data)
if (strncmp(op, SMK_FSHAT, strlen(SMK_FSHAT)) == 0) {
op += strlen(SMK_FSHAT);
nsp = smk_import(op, 0);
- if (nsp != NULL)
+ if (nsp != NULL) {
sp->smk_hat = nsp;
+ specified = 1;
+ }
} else if (strncmp(op, SMK_FSFLOOR, strlen(SMK_FSFLOOR)) == 0) {
op += strlen(SMK_FSFLOOR);
nsp = smk_import(op, 0);
- if (nsp != NULL)
+ if (nsp != NULL) {
sp->smk_floor = nsp;
+ specified = 1;
+ }
} else if (strncmp(op, SMK_FSDEFAULT,
strlen(SMK_FSDEFAULT)) == 0) {
op += strlen(SMK_FSDEFAULT);
nsp = smk_import(op, 0);
- if (nsp != NULL)
+ if (nsp != NULL) {
sp->smk_default = nsp;
+ specified = 1;
+ }
} else if (strncmp(op, SMK_FSROOT, strlen(SMK_FSROOT)) == 0) {
op += strlen(SMK_FSROOT);
nsp = smk_import(op, 0);
- if (nsp != NULL)
+ if (nsp != NULL) {
sp->smk_root = nsp;
+ specified = 1;
+ }
} else if (strncmp(op, SMK_FSTRANS, strlen(SMK_FSTRANS)) == 0) {
op += strlen(SMK_FSTRANS);
nsp = smk_import(op, 0);
if (nsp != NULL) {
sp->smk_root = nsp;
transmute = 1;
+ specified = 1;
}
}
}
+ if (!smack_privileged(CAP_MAC_ADMIN)) {
+ /*
+ * Unprivileged mounts don't get to specify Smack values.
+ */
+ if (specified)
+ return -EPERM;
+ /*
+ * Unprivileged mounts get root and default from the caller.
+ */
+ skp = smk_of_current();
+ sp->smk_root = skp->smk_known;
+ sp->smk_default = skp->smk_known;
+ }
/*
* Initialize the root inode.
*/
@@ -423,53 +445,6 @@ static int smack_sb_statfs(struct dentry *dentry)
return rc;
}
-/**
- * smack_sb_mount - Smack check for mounting
- * @dev_name: unused
- * @path: mount point
- * @type: unused
- * @flags: unused
- * @data: unused
- *
- * Returns 0 if current can write the floor of the filesystem
- * being mounted on, an error code otherwise.
- */
-static int smack_sb_mount(const char *dev_name, struct path *path,
- const char *type, unsigned long flags, void *data)
-{
- struct superblock_smack *sbp = path->dentry->d_sb->s_security;
- struct smk_audit_info ad;
-
- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
- smk_ad_setfield_u_fs_path(&ad, *path);
-
- return smk_curacc(sbp->smk_floor, MAY_WRITE, &ad);
-}
-
-/**
- * smack_sb_umount - Smack check for unmounting
- * @mnt: file system to unmount
- * @flags: unused
- *
- * Returns 0 if current can write the floor of the filesystem
- * being unmounted, an error code otherwise.
- */
-static int smack_sb_umount(struct vfsmount *mnt, int flags)
-{
- struct superblock_smack *sbp;
- struct smk_audit_info ad;
- struct path path;
-
- path.dentry = mnt->mnt_root;
- path.mnt = mnt;
-
- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
- smk_ad_setfield_u_fs_path(&ad, path);
-
- sbp = path.dentry->d_sb->s_security;
- return smk_curacc(sbp->smk_floor, MAY_WRITE, &ad);
-}
-
/*
* BPRM hooks
*/
@@ -837,31 +812,43 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
struct smk_audit_info ad;
+ struct smack_known *skp;
+ int check_priv = 0;
+ int check_import = 0;
+ int check_star = 0;
int rc = 0;
+ /*
+ * Check label validity here so import won't fail in post_setxattr
+ */
if (strcmp(name, XATTR_NAME_SMACK) == 0 ||
strcmp(name, XATTR_NAME_SMACKIPIN) == 0 ||
- strcmp(name, XATTR_NAME_SMACKIPOUT) == 0 ||
- strcmp(name, XATTR_NAME_SMACKEXEC) == 0 ||
- strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
- if (!smack_privileged(CAP_MAC_ADMIN))
- rc = -EPERM;
- /*
- * check label validity here so import wont fail on
- * post_setxattr
- */
- if (size == 0 || size >= SMK_LONGLABEL ||
- smk_import(value, size) == NULL)
- rc = -EINVAL;
+ strcmp(name, XATTR_NAME_SMACKIPOUT) == 0) {
+ check_priv = 1;
+ check_import = 1;
+ } else if (strcmp(name, XATTR_NAME_SMACKEXEC) == 0 ||
+ strcmp(name, XATTR_NAME_SMACKMMAP) == 0) {
+ check_priv = 1;
+ check_import = 1;
+ check_star = 1;
} else if (strcmp(name, XATTR_NAME_SMACKTRANSMUTE) == 0) {
- if (!smack_privileged(CAP_MAC_ADMIN))
- rc = -EPERM;
+ check_priv = 1;
if (size != TRANS_TRUE_SIZE ||
strncmp(value, TRANS_TRUE, TRANS_TRUE_SIZE) != 0)
rc = -EINVAL;
} else
rc = cap_inode_setxattr(dentry, name, value, size, flags);
+ if (check_priv && !smack_privileged(CAP_MAC_ADMIN))
+ rc = -EPERM;
+
+ if (rc == 0 && check_import) {
+ skp = smk_import_entry(value, size);
+ if (skp == NULL || (check_star &&
+ (skp == &smack_known_star || skp == &smack_known_web)))
+ rc = -EINVAL;
+ }
+
smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_DENTRY);
smk_ad_setfield_u_fs_path_dentry(&ad, dentry);
@@ -1364,7 +1351,7 @@ static int smack_file_receive(struct file *file)
int may = 0;
struct smk_audit_info ad;
- smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
+ smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
smk_ad_setfield_u_fs_path(&ad, file->f_path);
/*
* This code relies on bitmasks.
@@ -2847,8 +2834,17 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
if (rc >= 0)
transflag = SMK_INODE_TRANSMUTE;
}
- isp->smk_task = smk_fetch(XATTR_NAME_SMACKEXEC, inode, dp);
- isp->smk_mmap = smk_fetch(XATTR_NAME_SMACKMMAP, inode, dp);
+ /*
+ * Don't let the exec or mmap label be "*" or "@".
+ */
+ skp = smk_fetch(XATTR_NAME_SMACKEXEC, inode, dp);
+ if (skp == &smack_known_star || skp == &smack_known_web)
+ skp = NULL;
+ isp->smk_task = skp;
+ skp = smk_fetch(XATTR_NAME_SMACKMMAP, inode, dp);
+ if (skp == &smack_known_star || skp == &smack_known_web)
+ skp = NULL;
+ isp->smk_mmap = skp;
dput(dp);
break;
@@ -3743,8 +3739,6 @@ struct security_operations smack_ops = {
.sb_copy_data = smack_sb_copy_data,
.sb_kern_mount = smack_sb_kern_mount,
.sb_statfs = smack_sb_statfs,
- .sb_mount = smack_sb_mount,
- .sb_umount = smack_sb_umount,
.bprm_set_creds = smack_bprm_set_creds,
.bprm_committing_creds = smack_bprm_committing_creds,
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 160aa08e3cd5..3198cfe1dcc6 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -52,6 +52,7 @@ enum smk_inos {
SMK_CIPSO2 = 17, /* load long label -> CIPSO mapping */
SMK_REVOKE_SUBJ = 18, /* set rules with subject label to '-' */
SMK_CHANGE_RULE = 19, /* change or add rules (long labels) */
+ SMK_SYSLOG = 20, /* change syslog label) */
};
/*
@@ -59,6 +60,7 @@ enum smk_inos {
*/
static DEFINE_MUTEX(smack_cipso_lock);
static DEFINE_MUTEX(smack_ambient_lock);
+static DEFINE_MUTEX(smack_syslog_lock);
static DEFINE_MUTEX(smk_netlbladdr_lock);
/*
@@ -90,7 +92,13 @@ int smack_cipso_mapped = SMACK_CIPSO_MAPPED_DEFAULT;
* everyone. It is expected that the hat (^) label
* will be used if any label is used.
*/
-char *smack_onlycap;
+struct smack_known *smack_onlycap;
+
+/*
+ * If this value is set restrict syslog use to the label specified.
+ * It can be reset via smackfs/syslog
+ */
+struct smack_known *smack_syslog_label;
/*
* Certain IP addresses may be designated as single label hosts.
@@ -301,7 +309,8 @@ static int smk_perm_from_str(const char *string)
* @import: if non-zero, import labels
* @len: label length limit
*
- * Returns 0 on success, -1 on failure
+ * Returns 0 on success, -EINVAL on failure and -ENOENT when either subject
+ * or object is missing.
*/
static int smk_fill_rule(const char *subject, const char *object,
const char *access1, const char *access2,
@@ -314,28 +323,28 @@ static int smk_fill_rule(const char *subject, const char *object,
if (import) {
rule->smk_subject = smk_import_entry(subject, len);
if (rule->smk_subject == NULL)
- return -1;
+ return -EINVAL;
rule->smk_object = smk_import(object, len);
if (rule->smk_object == NULL)
- return -1;
+ return -EINVAL;
} else {
cp = smk_parse_smack(subject, len);
if (cp == NULL)
- return -1;
+ return -EINVAL;
skp = smk_find_entry(cp);
kfree(cp);
if (skp == NULL)
- return -1;
+ return -ENOENT;
rule->smk_subject = skp;
cp = smk_parse_smack(object, len);
if (cp == NULL)
- return -1;
+ return -EINVAL;
skp = smk_find_entry(cp);
kfree(cp);
if (skp == NULL)
- return -1;
+ return -ENOENT;
rule->smk_object = skp->smk_known;
}
@@ -381,6 +390,7 @@ static ssize_t smk_parse_long_rule(char *data, struct smack_parsed_rule *rule,
{
ssize_t cnt = 0;
char *tok[4];
+ int rc;
int i;
/*
@@ -405,10 +415,8 @@ static ssize_t smk_parse_long_rule(char *data, struct smack_parsed_rule *rule,
while (i < 4)
tok[i++] = NULL;
- if (smk_fill_rule(tok[0], tok[1], tok[2], tok[3], rule, import, 0))
- return -1;
-
- return cnt;
+ rc = smk_fill_rule(tok[0], tok[1], tok[2], tok[3], rule, import, 0);
+ return rc == 0 ? cnt : rc;
}
#define SMK_FIXED24_FMT 0 /* Fixed 24byte label format */
@@ -1603,7 +1611,7 @@ static const struct file_operations smk_ambient_ops = {
};
/**
- * smk_read_onlycap - read() for /smack/onlycap
+ * smk_read_onlycap - read() for smackfs/onlycap
* @filp: file pointer, not actually used
* @buf: where to put the result
* @cn: maximum to send along
@@ -1622,7 +1630,7 @@ static ssize_t smk_read_onlycap(struct file *filp, char __user *buf,
return 0;
if (smack_onlycap != NULL)
- smack = smack_onlycap;
+ smack = smack_onlycap->smk_known;
asize = strlen(smack) + 1;
@@ -1633,7 +1641,7 @@ static ssize_t smk_read_onlycap(struct file *filp, char __user *buf,
}
/**
- * smk_write_onlycap - write() for /smack/onlycap
+ * smk_write_onlycap - write() for smackfs/onlycap
* @file: file pointer, not actually used
* @buf: where to get the data from
* @count: bytes sent
@@ -1656,7 +1664,7 @@ static ssize_t smk_write_onlycap(struct file *file, const char __user *buf,
* explicitly for clarity. The smk_access() implementation
* would use smk_access(smack_onlycap, MAY_WRITE)
*/
- if (smack_onlycap != NULL && smack_onlycap != skp->smk_known)
+ if (smack_onlycap != NULL && smack_onlycap != skp)
return -EPERM;
data = kzalloc(count, GFP_KERNEL);
@@ -1676,7 +1684,7 @@ static ssize_t smk_write_onlycap(struct file *file, const char __user *buf,
if (copy_from_user(data, buf, count) != 0)
rc = -EFAULT;
else
- smack_onlycap = smk_import(data, count);
+ smack_onlycap = smk_import_entry(data, count);
kfree(data);
return rc;
@@ -1856,11 +1864,12 @@ static ssize_t smk_user_access(struct file *file, const char __user *buf,
res = smk_parse_long_rule(data, &rule, 0, 3);
}
- if (res < 0)
+ if (res >= 0)
+ res = smk_access(rule.smk_subject, rule.smk_object,
+ rule.smk_access1, NULL);
+ else if (res != -ENOENT)
return -EINVAL;
- res = smk_access(rule.smk_subject, rule.smk_object,
- rule.smk_access1, NULL);
data[0] = res == 0 ? '1' : '0';
data[1] = '\0';
@@ -2143,7 +2152,7 @@ static ssize_t smk_write_change_rule(struct file *file, const char __user *buf,
/*
* Must have privilege.
*/
- if (!capable(CAP_MAC_ADMIN))
+ if (!smack_privileged(CAP_MAC_ADMIN))
return -EPERM;
return smk_write_rules_list(file, buf, count, ppos, NULL, NULL,
@@ -2158,12 +2167,89 @@ static const struct file_operations smk_change_rule_ops = {
};
/**
- * smk_fill_super - fill the /smackfs superblock
+ * smk_read_syslog - read() for smackfs/syslog
+ * @filp: file pointer, not actually used
+ * @buf: where to put the result
+ * @cn: maximum to send along
+ * @ppos: where to start
+ *
+ * Returns number of bytes read or error code, as appropriate
+ */
+static ssize_t smk_read_syslog(struct file *filp, char __user *buf,
+ size_t cn, loff_t *ppos)
+{
+ struct smack_known *skp;
+ ssize_t rc = -EINVAL;
+ int asize;
+
+ if (*ppos != 0)
+ return 0;
+
+ if (smack_syslog_label == NULL)
+ skp = &smack_known_star;
+ else
+ skp = smack_syslog_label;
+
+ asize = strlen(skp->smk_known) + 1;
+
+ if (cn >= asize)
+ rc = simple_read_from_buffer(buf, cn, ppos, skp->smk_known,
+ asize);
+
+ return rc;
+}
+
+/**
+ * smk_write_syslog - write() for smackfs/syslog
+ * @file: file pointer, not actually used
+ * @buf: where to get the data from
+ * @count: bytes sent
+ * @ppos: where to start
+ *
+ * Returns number of bytes written or error code, as appropriate
+ */
+static ssize_t smk_write_syslog(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ char *data;
+ struct smack_known *skp;
+ int rc = count;
+
+ if (!smack_privileged(CAP_MAC_ADMIN))
+ return -EPERM;
+
+ data = kzalloc(count, GFP_KERNEL);
+ if (data == NULL)
+ return -ENOMEM;
+
+ if (copy_from_user(data, buf, count) != 0)
+ rc = -EFAULT;
+ else {
+ skp = smk_import_entry(data, count);
+ if (skp == NULL)
+ rc = -EINVAL;
+ else
+ smack_syslog_label = smk_import_entry(data, count);
+ }
+
+ kfree(data);
+ return rc;
+}
+
+static const struct file_operations smk_syslog_ops = {
+ .read = smk_read_syslog,
+ .write = smk_write_syslog,
+ .llseek = default_llseek,
+};
+
+
+/**
+ * smk_fill_super - fill the smackfs superblock
* @sb: the empty superblock
* @data: unused
* @silent: unused
*
- * Fill in the well known entries for /smack
+ * Fill in the well known entries for the smack filesystem
*
* Returns 0 on success, an error code on failure
*/
@@ -2208,6 +2294,8 @@ static int smk_fill_super(struct super_block *sb, void *data, int silent)
S_IRUGO|S_IWUSR},
[SMK_CHANGE_RULE] = {
"change-rule", &smk_change_rule_ops, S_IRUGO|S_IWUSR},
+ [SMK_SYSLOG] = {
+ "syslog", &smk_syslog_ops, S_IRUGO|S_IWUSR},
/* last one */
{""}
};