Commit 8d71ff0b authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'for-linus' of...

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (24 commits)
  integrity: special fs magic
  As pointed out by Jonathan Corbet, the timer must be deleted before
  ERROR: code indent should use tabs where possible
  The tpm_dev_release function is only called for platform devices, not pnp
  Protect tpm_chip_list when transversing it.
  Renames num_open to is_open, as only one process can open the file at a time.
  Remove the BKL calls from the TPM driver, which were added in the overall
  netlabel: Add configuration support for local labeling
  cipso: Add support for native local labeling and fixup mapping names
  netlabel: Changes to the NetLabel security attributes to allow LSMs to pass full contexts
  selinux: Cache NetLabel secattrs in the socket's security struct
  selinux: Set socket NetLabel based on connection endpoint
  netlabel: Add functionality to set the security attributes of a packet
  netlabel: Add network address selectors to the NetLabel/LSM domain mapping
  netlabel: Add a generic way to create ordered linked lists of network addrs
  netlabel: Replace protocol/NetLabel linking with refrerence counts
  smack: Fix missing calls to netlbl_skbuff_err()
  selinux: Fix missing calls to netlbl_skbuff_err()
  selinux: Fix a problem in security_netlbl_sid_to_secattr()
  selinux: Better local/forward check in selinux_ip_postroute()
  ...
parents 244dc4e5 92562927
......@@ -954,72 +954,63 @@ EXPORT_SYMBOL_GPL(tpm_store_cancel);
/*
* 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)
{
int rc = 0, minor = iminor(inode);
int minor = iminor(inode);
struct tpm_chip *chip = NULL, *pos;
lock_kernel();
spin_lock(&driver_lock);
list_for_each_entry(pos, &tpm_chip_list, list) {
rcu_read_lock();
list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
if (pos->vendor.miscdev.minor == minor) {
chip = pos;
get_device(chip->dev);
break;
}
}
rcu_read_unlock();
if (chip == NULL) {
rc = -ENODEV;
goto err_out;
}
if (!chip)
return -ENODEV;
if (chip->num_opens) {
if (test_and_set_bit(0, &chip->is_open)) {
dev_dbg(chip->dev, "Another process owns this TPM\n");
rc = -EBUSY;
goto err_out;
put_device(chip->dev);
return -EBUSY;
}
chip->num_opens++;
get_device(chip->dev);
spin_unlock(&driver_lock);
chip->data_buffer = kmalloc(TPM_BUFSIZE * sizeof(u8), GFP_KERNEL);
if (chip->data_buffer == NULL) {
chip->num_opens--;
clear_bit(0, &chip->is_open);
put_device(chip->dev);
unlock_kernel();
return -ENOMEM;
}
atomic_set(&chip->data_pending, 0);
file->private_data = chip;
unlock_kernel();
return 0;
err_out:
spin_unlock(&driver_lock);
unlock_kernel();
return rc;
}
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_scheduled_work();
spin_lock(&driver_lock);
file->private_data = NULL;
del_singleshot_timer_sync(&chip->user_read_timer);
atomic_set(&chip->data_pending, 0);
chip->num_opens--;
put_device(chip->dev);
kfree(chip->data_buffer);
spin_unlock(&driver_lock);
clear_bit(0, &chip->is_open);
put_device(chip->dev);
return 0;
}
EXPORT_SYMBOL_GPL(tpm_release);
......@@ -1093,13 +1084,11 @@ void tpm_remove_hardware(struct device *dev)
}
spin_lock(&driver_lock);
list_del(&chip->list);
list_del_rcu(&chip->list);
spin_unlock(&driver_lock);
synchronize_rcu();
misc_deregister(&chip->vendor.miscdev);
sysfs_remove_group(&dev->kobj, chip->vendor.attr_group);
tpm_bios_log_teardown(chip->bios_dir);
......@@ -1144,25 +1133,33 @@ int tpm_pm_resume(struct device *dev)
}
EXPORT_SYMBOL_GPL(tpm_pm_resume);
/* In case vendor provided release function, call it too.*/
void tpm_dev_vendor_release(struct tpm_chip *chip)
{
if (chip->vendor.release)
chip->vendor.release(chip->dev);
clear_bit(chip->dev_num, dev_mask);
kfree(chip->vendor.miscdev.name);
}
EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
/*
* Once all references to platform device are down to 0,
* release all allocated structures.
* In case vendor provided release function,
* call it too.
*/
static void tpm_dev_release(struct device *dev)
{
struct tpm_chip *chip = dev_get_drvdata(dev);
if (chip->vendor.release)
chip->vendor.release(dev);
tpm_dev_vendor_release(chip);
chip->release(dev);
clear_bit(chip->dev_num, dev_mask);
kfree(chip->vendor.miscdev.name);
kfree(chip);
}
EXPORT_SYMBOL_GPL(tpm_dev_release);
/*
* Called from tpm_<specific>.c probe function only for devices
......@@ -1171,8 +1168,8 @@ static void tpm_dev_release(struct device *dev)
* upon errant exit from this function specific probe function should call
* pci_disable_device
*/
struct tpm_chip *tpm_register_hardware(struct device *dev, const struct tpm_vendor_specific
*entry)
struct tpm_chip *tpm_register_hardware(struct device *dev,
const struct tpm_vendor_specific *entry)
{
#define DEVNAME_SIZE 7
......@@ -1231,21 +1228,20 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, const struct tpm_vend
return NULL;
}
spin_lock(&driver_lock);
list_add(&chip->list, &tpm_chip_list);
spin_unlock(&driver_lock);
if (sysfs_create_group(&dev->kobj, chip->vendor.attr_group)) {
list_del(&chip->list);
misc_deregister(&chip->vendor.miscdev);
put_device(chip->dev);
return NULL;
}
chip->bios_dir = tpm_bios_log_setup(devname);
/* Make chip available */
spin_lock(&driver_lock);
list_add_rcu(&chip->list, &tpm_chip_list);
spin_unlock(&driver_lock);
return chip;
}
EXPORT_SYMBOL_GPL(tpm_register_hardware);
......
......@@ -90,7 +90,7 @@ struct tpm_chip {
struct device *dev; /* Device stuff */
int dev_num; /* /dev/tpm# */
int num_opens; /* only one allowed */
unsigned long is_open; /* only one allowed */
int time_expired;
/* Data passed to and from the tpm via the read/write calls */
......@@ -132,6 +132,7 @@ 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_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 *);
......
......@@ -630,12 +630,23 @@ static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = {
{"", 0} /* Terminator */
};
static __devexit void tpm_tis_pnp_remove(struct pnp_dev *dev)
{
struct tpm_chip *chip = pnp_get_drvdata(dev);
tpm_dev_vendor_release(chip);
kfree(chip);
}
static struct pnp_driver tis_pnp_driver = {
.name = "tpm_tis",
.id_table = tpm_pnp_tbl,
.probe = tpm_tis_pnp_init,
.suspend = tpm_tis_pnp_suspend,
.resume = tpm_tis_pnp_resume,
.remove = tpm_tis_pnp_remove,
};
#define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2
......@@ -683,6 +694,7 @@ static void __exit cleanup_tis(void)
spin_lock(&tis_lock);
list_for_each_entry_safe(i, j, &tis_chips, list) {
chip = to_tpm_chip(i);
tpm_remove_hardware(chip->dev);
iowrite32(~TPM_GLOBAL_INT_ENABLE &
ioread32(chip->vendor.iobase +
TPM_INT_ENABLE(chip->vendor.
......@@ -694,9 +706,9 @@ static void __exit cleanup_tis(void)
free_irq(chip->vendor.irq, chip);
iounmap(i->iobase);
list_del(&i->list);
tpm_remove_hardware(chip->dev);
}
spin_unlock(&tis_lock);
if (force) {
platform_device_unregister(pdev);
driver_unregister(&tis_drv);
......
......@@ -26,8 +26,7 @@
#include <linux/debugfs.h>
#include <linux/fsnotify.h>
#include <linux/string.h>
#define DEBUGFS_MAGIC 0x64626720
#include <linux/magic.h>
static struct vfsmount *debugfs_mount;
static int debugfs_mount_count;
......
......@@ -6,6 +6,10 @@
#define AFS_SUPER_MAGIC 0x5346414F
#define AUTOFS_SUPER_MAGIC 0x0187
#define CODA_SUPER_MAGIC 0x73757245
#define DEBUGFS_MAGIC 0x64626720
#define SYSFS_MAGIC 0x62656572
#define SECURITYFS_MAGIC 0x73636673
#define TMPFS_MAGIC 0x01021994
#define EFS_SUPER_MAGIC 0x414A53
#define EXT2_SUPER_MAGIC 0xEF53
#define EXT3_SUPER_MAGIC 0xEF53
......
......@@ -40,11 +40,12 @@
#include <linux/net.h>
#include <linux/skbuff.h>
#include <net/netlabel.h>
#include <asm/atomic.h>
/* known doi values */
#define CIPSO_V4_DOI_UNKNOWN 0x00000000
/* tag types */
/* standard tag types */
#define CIPSO_V4_TAG_INVALID 0
#define CIPSO_V4_TAG_RBITMAP 1
#define CIPSO_V4_TAG_ENUM 2
......@@ -52,10 +53,14 @@
#define CIPSO_V4_TAG_PBITMAP 6
#define CIPSO_V4_TAG_FREEFORM 7
/* non-standard tag types (tags > 127) */
#define CIPSO_V4_TAG_LOCAL 128
/* doi mapping types */
#define CIPSO_V4_MAP_UNKNOWN 0
#define CIPSO_V4_MAP_STD 1
#define CIPSO_V4_MAP_TRANS 1
#define CIPSO_V4_MAP_PASS 2
#define CIPSO_V4_MAP_LOCAL 3
/* limits */
#define CIPSO_V4_MAX_REM_LVLS 255
......@@ -79,10 +84,9 @@ struct cipso_v4_doi {
} map;
u8 tags[CIPSO_V4_TAG_MAXCNT];
u32 valid;
atomic_t refcount;
struct list_head list;
struct rcu_head rcu;
struct list_head dom_list;
};
/* Standard CIPSO mapping table */
......@@ -128,25 +132,26 @@ extern int cipso_v4_rbm_strictvalid;
#ifdef CONFIG_NETLABEL
int cipso_v4_doi_add(struct cipso_v4_doi *doi_def);
int cipso_v4_doi_remove(u32 doi,
struct netlbl_audit *audit_info,
void (*callback) (struct rcu_head * head));
void cipso_v4_doi_free(struct cipso_v4_doi *doi_def);
int cipso_v4_doi_remove(u32 doi, struct netlbl_audit *audit_info);
struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi);
void cipso_v4_doi_putdef(struct cipso_v4_doi *doi_def);
int cipso_v4_doi_walk(u32 *skip_cnt,
int (*callback) (struct cipso_v4_doi *doi_def, void *arg),
void *cb_arg);
int cipso_v4_doi_domhsh_add(struct cipso_v4_doi *doi_def, const char *domain);
int cipso_v4_doi_domhsh_remove(struct cipso_v4_doi *doi_def,
const char *domain);
#else
static inline int cipso_v4_doi_add(struct cipso_v4_doi *doi_def)
{
return -ENOSYS;
}
static inline void cipso_v4_doi_free(struct cipso_v4_doi *doi_def)
{
return;
}
static inline int cipso_v4_doi_remove(u32 doi,
struct netlbl_audit *audit_info,
void (*callback) (struct rcu_head * head))
struct netlbl_audit *audit_info)
{
return 0;
}
......@@ -206,10 +211,15 @@ void cipso_v4_error(struct sk_buff *skb, int error, u32 gateway);
int cipso_v4_sock_setattr(struct sock *sk,
const struct cipso_v4_doi *doi_def,
const struct netlbl_lsm_secattr *secattr);
void cipso_v4_sock_delattr(struct sock *sk);
int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr);
int cipso_v4_skbuff_setattr(struct sk_buff *skb,
const struct cipso_v4_doi *doi_def,
const struct netlbl_lsm_secattr *secattr);
int cipso_v4_skbuff_delattr(struct sk_buff *skb);
int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr);
int cipso_v4_validate(unsigned char **option);
int cipso_v4_validate(const struct sk_buff *skb, unsigned char **option);
#else
static inline void cipso_v4_error(struct sk_buff *skb,
int error,
......@@ -225,19 +235,36 @@ static inline int cipso_v4_sock_setattr(struct sock *sk,
return -ENOSYS;
}
static inline void cipso_v4_sock_delattr(struct sock *sk)
{
}
static inline int cipso_v4_sock_getattr(struct sock *sk,
struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
static inline int cipso_v4_skbuff_setattr(struct sk_buff *skb,
const struct cipso_v4_doi *doi_def,
const struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
static inline int cipso_v4_skbuff_delattr(struct sk_buff *skb)
{
return -ENOSYS;
}
static inline int cipso_v4_skbuff_getattr(const struct sk_buff *skb,
struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
static inline int cipso_v4_validate(unsigned char **option)
static inline int cipso_v4_validate(const struct sk_buff *skb,
unsigned char **option)
{
return -ENOSYS;
}
......
......@@ -9,7 +9,7 @@
*/
/*
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
*
* 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
......@@ -72,8 +72,10 @@ struct cipso_v4_doi;
/* NetLabel NETLINK protocol version
* 1: initial version
* 2: added static labels for unlabeled connections
* 3: network selectors added to the NetLabel/LSM domain mapping and the
* CIPSO_V4_MAP_LOCAL CIPSO mapping was added
*/
#define NETLBL_PROTO_VERSION 2
#define NETLBL_PROTO_VERSION 3
/* NetLabel NETLINK types/families */
#define NETLBL_NLTYPE_NONE 0
......@@ -87,6 +89,8 @@ struct cipso_v4_doi;
#define NETLBL_NLTYPE_CIPSOV6_NAME "NLBL_CIPSOv6"
#define NETLBL_NLTYPE_UNLABELED 5
#define NETLBL_NLTYPE_UNLABELED_NAME "NLBL_UNLBL"
#define NETLBL_NLTYPE_ADDRSELECT 6
#define NETLBL_NLTYPE_ADDRSELECT_NAME "NLBL_ADRSEL"
/*
* NetLabel - Kernel API for accessing the network packet label mappings.
......@@ -200,7 +204,7 @@ struct netlbl_lsm_secattr {
u32 type;
char *domain;
struct netlbl_lsm_cache *cache;
union {
struct {
struct {
struct netlbl_lsm_secattr_catmap *cat;
u32 lvl;
......@@ -352,12 +356,9 @@ static inline void netlbl_secattr_free(struct netlbl_lsm_secattr *secattr)
int netlbl_cfg_map_del(const char *domain, struct netlbl_audit *audit_info);
int netlbl_cfg_unlbl_add_map(const char *domain,
struct netlbl_audit *audit_info);
int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
struct netlbl_audit *audit_info);
int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
const char *domain,
struct netlbl_audit *audit_info);
int netlbl_cfg_cipsov4_del(u32 doi, struct netlbl_audit *audit_info);
/*
* LSM security attribute operations
......@@ -380,12 +381,19 @@ int netlbl_secattr_catmap_setrng(struct netlbl_lsm_secattr_catmap *catmap,
int netlbl_enabled(void);
int netlbl_sock_setattr(struct sock *sk,
const struct netlbl_lsm_secattr *secattr);
void netlbl_sock_delattr(struct sock *sk);
int netlbl_sock_getattr(struct sock *sk,
struct netlbl_lsm_secattr *secattr);
int netlbl_conn_setattr(struct sock *sk,
struct sockaddr *addr,
const struct netlbl_lsm_secattr *secattr);
int netlbl_skbuff_setattr(struct sk_buff *skb,
u16 family,
const struct netlbl_lsm_secattr *secattr);
int netlbl_skbuff_getattr(const struct sk_buff *skb,
u16 family,
struct netlbl_lsm_secattr *secattr);
void netlbl_skbuff_err(struct sk_buff *skb, int error);
void netlbl_skbuff_err(struct sk_buff *skb, int error, int gateway);
/*
* LSM label mapping cache operations
......@@ -404,22 +412,12 @@ static inline int netlbl_cfg_unlbl_add_map(const char *domain,
{
return -ENOSYS;
}
static inline int netlbl_cfg_cipsov4_add(struct cipso_v4_doi *doi_def,
struct netlbl_audit *audit_info)
{
return -ENOSYS;
}
static inline int netlbl_cfg_cipsov4_add_map(struct cipso_v4_doi *doi_def,
const char *domain,
struct netlbl_audit *audit_info)
{
return -ENOSYS;
}
static inline int netlbl_cfg_cipsov4_del(u32 doi,
struct netlbl_audit *audit_info)
{
return -ENOSYS;
}
static inline int netlbl_secattr_catmap_walk(
struct netlbl_lsm_secattr_catmap *catmap,
u32 offset)
......@@ -456,18 +454,35 @@ static inline int netlbl_sock_setattr(struct sock *sk,
{
return -ENOSYS;
}
static inline void netlbl_sock_delattr(struct sock *sk)
{
}
static inline int netlbl_sock_getattr(struct sock *sk,
struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
static inline int netlbl_conn_setattr(struct sock *sk,
struct sockaddr *addr,
const struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
static inline int netlbl_skbuff_setattr(struct sk_buff *skb,
u16 family,
const struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
static inline int netlbl_skbuff_getattr(const struct sk_buff *skb,
u16 family,
struct netlbl_lsm_secattr *secattr)
{
return -ENOSYS;
}
static inline void netlbl_skbuff_err(struct sk_buff *skb, int error)
static inline void netlbl_skbuff_err(struct sk_buff *skb,
int error,
int gateway)
{
return;
}
......
......@@ -50,14 +50,12 @@
#include <linux/migrate.h>
#include <linux/highmem.h>
#include <linux/seq_file.h>
#include <linux/magic.h>
#include <asm/uaccess.h>
#include <asm/div64.h>
#include <asm/pgtable.h>
/* This magic number is used in glibc for posix shared memory */
#define TMPFS_MAGIC 0x01021994
#define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long))
#define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE)
#define BLOCKS_PER_PAGE (PAGE_CACHE_SIZE/512)
......
This diff is collapsed.
......@@ -438,7 +438,7 @@ int ip_options_compile(struct net *net,
goto error;
}
opt->cipso = optptr - iph;
if (cipso_v4_validate(&optptr)) {
if (cipso_v4_validate(skb, &optptr)) {
pp_ptr = optptr;
goto error;
}
......
......@@ -5,7 +5,8 @@
#
# base objects
obj-y := netlabel_user.o netlabel_kapi.o netlabel_domainhash.o
obj-y := netlabel_user.o netlabel_kapi.o
obj-y += netlabel_domainhash.o netlabel_addrlist.o
# management objects
obj-y += netlabel_mgmt.o
......
This diff is collapsed.
/*
* NetLabel Network Address Lists
*
* This file contains network address list functions used to manage ordered
* lists of network addresses for use by the NetLabel subsystem. The NetLabel
* system manages static and dynamic label mappings for network protocols such
* as CIPSO and RIPSO.
*
* Author: Paul Moore <paul.moore@hp.com>
*
*/
/*
* (c) Copyright Hewlett-Packard Development Company, L.P., 2008
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _NETLABEL_ADDRLIST_H
#define _NETLABEL_ADDRLIST_H
#include <linux/types.h>
#include <linux/rcupdate.h>
#include <linux/list.h>
#include <linux/in6.h>
#include <linux/audit.h>
/**
* struct netlbl_af4list - NetLabel IPv4 address list
* @addr: IPv4 address
* @mask: IPv4 address mask
* @valid: valid flag
* @list: list structure, used internally
*/
struct netlbl_af4list {
__be32 addr;
__be32 mask;
u32 valid;
struct list_head list;
};
/**
* struct netlbl_af6list - NetLabel IPv6 address list
* @addr: IPv6 address
* @mask: IPv6 address mask
* @valid: valid flag
* @list: list structure, used internally
*/
struct netlbl_af6list {
struct in6_addr addr;
struct in6_addr mask;
u32 valid;
struct list_head list;
};
#define __af4list_entry(ptr) container_of(ptr, struct netlbl_af4list, list)
static inline struct netlbl_af4list *__af4list_valid(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af4list *n = __af4list_entry(s);
while (i != h && !n->valid) {
i = i->next;
n = __af4list_entry(i);
}
return n;
}
static inline struct netlbl_af4list *__af4list_valid_rcu(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af4list *n = __af4list_entry(s);
while (i != h && !n->valid) {
i = rcu_dereference(i->next);
n = __af4list_entry(i);
}
return n;
}
#define netlbl_af4list_foreach(iter, head) \
for (iter = __af4list_valid((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af4list_valid(iter->list.next, head))
#define netlbl_af4list_foreach_rcu(iter, head) \
for (iter = __af4list_valid_rcu((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af4list_valid_rcu(iter->list.next, head))
#define netlbl_af4list_foreach_safe(iter, tmp, head) \
for (iter = __af4list_valid((head)->next, head), \
tmp = __af4list_valid(iter->list.next, head); \
&iter->list != (head); \
iter = tmp, tmp = __af4list_valid(iter->list.next, head))
int netlbl_af4list_add(struct netlbl_af4list *entry,
struct list_head *head);
struct netlbl_af4list *netlbl_af4list_remove(__be32 addr, __be32 mask,
struct list_head *head);
void netlbl_af4list_remove_entry(struct netlbl_af4list *entry);
struct netlbl_af4list *netlbl_af4list_search(__be32 addr,
struct list_head *head);
struct netlbl_af4list *netlbl_af4list_search_exact(__be32 addr,
__be32 mask,
struct list_head *head);
void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
int src, const char *dev,
__be32 addr, __be32 mask);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
#define __af6list_entry(ptr) container_of(ptr, struct netlbl_af6list, list)
static inline struct netlbl_af6list *__af6list_valid(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af6list *n = __af6list_entry(s);
while (i != h && !n->valid) {
i = i->next;
n = __af6list_entry(i);
}
return n;
}
static inline struct netlbl_af6list *__af6list_valid_rcu(struct list_head *s,
struct list_head *h)
{
struct list_head *i = s;
struct netlbl_af6list *n = __af6list_entry(s);
while (i != h && !n->valid) {
i = rcu_dereference(i->next);
n = __af6list_entry(i);
}
return n;
}
#define netlbl_af6list_foreach(iter, head) \
for (iter = __af6list_valid((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af6list_valid(iter->list.next, head))
#define netlbl_af6list_foreach_rcu(iter, head) \
for (iter = __af6list_valid_rcu((head)->next, head); \
prefetch(iter->list.next), &iter->list != (head); \
iter = __af6list_valid_rcu(iter->list.next, head))
#define netlbl_af6list_foreach_safe(iter, tmp, head) \
for (iter = __af6list_valid((head)->next, head), \
tmp = __af6list_valid(iter->list.next, head); \
&iter->list != (head); \
iter = tmp, tmp = __af6list_valid(iter->list.next, head))
int netlbl_af6list_add(struct netlbl_af6list *entry,
struct list_head *head);
struct netlbl_af6list *netlbl_af6list_remove(const struct in6_addr *addr,
const struct in6_addr *mask,
struct list_head *head);
void netlbl_af6list_remove_entry(struct netlbl_af6list *entry);
struct netlbl_af6list *netlbl_af6list_search(const struct in6_addr *addr,
struct list_head *head);
struct netlbl_af6list *netlbl_af6list_search_exact(const struct in6_addr *addr,
const struct in6_addr *mask,
struct list_head *head);
void netlbl_af6list_audit_addr(struct audit_buffer *audit_buf,
int src,
const char *dev,
const struct in6_addr *addr,
const struct in6_addr *mask);
#endif /* IPV6 */
#endif
......@@ -43,6 +43,7 @@
#include "netlabel_user.h"
#include "netlabel_cipso_v4.h"
#include "netlabel_mgmt.h"
#include "netlabel_domainhash.h"
/* Argument struct for cipso_v4_doi_walk() */
struct netlbl_cipsov4_doiwalk_arg {
......@@ -51,6 +52,12 @@ struct netlbl_cipsov4_doiwalk_arg {
u32 seq;
};
/* Argument struct for netlbl_domhsh_walk() */
struct netlbl_domhsh_walk_arg {
struct netlbl_audit *audit_info;
u32 doi;
};
/* NetLabel Generic NETLINK CIPSOv4 family */
static struct genl_family netlbl_cipsov4_gnl_family = {
.id = GENL_ID_GENERATE,
......@@ -80,32 +87,6 @@ static const struct nla_policy netlbl_cipsov4_genl_policy[NLBL_CIPSOV4_A_MAX + 1
* Helper Functions
*/
/**
* netlbl_cipsov4_doi_free - Frees a CIPSO V4 DOI definition
* @entry: the entry's RCU field
*
* Description:
* This function is designed to be used as a callback to the call_rcu()
* function so that the memory allocated to the DOI definition can be released
* safely.
*
*/
void netlbl_cipsov4_doi_free(struct rcu_head *entry)
{
struct cipso_v4_doi *ptr;
ptr = container_of(entry, struct cipso_v4_doi, rcu);
switch (ptr->type) {
case CIPSO_V4_MAP_STD:
kfree(ptr->map.std->lvl.cipso);
kfree(ptr->map.std->lvl.local);
kfree(ptr->map.std->cat.cipso);
kfree(ptr->map.std->cat.local);
break;
}
kfree(ptr);
}
/**
* netlbl_cipsov4_add_common - Parse the common sections of a ADD message
* @info: the Generic NETLINK info block
......@@ -151,9 +132,9 @@ static int netlbl_cipsov4_add_common(struct genl_info *info,
* @info: the Generic NETLINK info block
*
* Description:
* Create a new CIPSO_V4_MAP_STD DOI definition based on the given ADD message
* and add it to the CIPSO V4 engine. Return zero on success and non-zero on
* error.
* Create a new CIPSO_V4_MAP_TRANS DOI definition based on the given ADD
* message and add it to the CIPSO V4 engine. Return zero on success and
* non-zero on error.
*
*/
static int netlbl_cipsov4_add_std(struct genl_info *info)
......@@ -183,7 +164,7 @@ static int netlbl_cipsov4_add_std(struct genl_info *info)
ret_val = -ENOMEM;
goto add_std_failure;
}
doi_def->type = CIPSO_V4_MAP_STD;
doi_def->type = CIPSO_V4_MAP_TRANS;
ret_val = netlbl_cipsov4_add_common(info, doi_def);
if (ret_val != 0)
......@@ -342,7 +323,7 @@ static int netlbl_cipsov4_add_std(struct genl_info *info)
add_std_failure:
if (doi_def)
netlbl_cipsov4_doi_free(&doi_def->rcu);
cipso_v4_doi_free(doi_def);
return ret_val;
}
......@@ -379,7 +360,44 @@ static int netlbl_cipsov4_add_pass(struct genl_info *info)
return 0;
add_pass_failure:
netlbl_cipsov4_doi_free(&doi_def->rcu);
cipso_v4_doi_free(doi_def);
return ret_val;
}
/**
* netlbl_cipsov4_add_local - Adds a CIPSO V4 DOI definition
* @info: the Generic NETLINK info block
*
* Description:
* Create a new CIPSO_V4_MAP_LOCAL DOI definition based on the given ADD
* message and add it to the CIPSO V4 engine. Return zero on success and
* non-zero on error.
*
*/
static int netlbl_cipsov4_add_local(struct genl_info *info)
{
int ret_val;
struct cipso_v4_doi *doi_def = NULL;
if (!info->attrs[NLBL_CIPSOV4_A_TAGLST])
return -EINVAL;
doi_def = kmalloc(sizeof(*doi_def), GFP_KERNEL);
if (doi_def == NULL)
return -ENOMEM;
doi_def->type = CIPSO_V4_MAP_LOCAL;
ret_val = netlbl_cipsov4_add_common(info, doi_def);
if (ret_val != 0)
goto add_local_failure;
ret_val = cipso_v4_doi_add(doi_def);
if (ret_val != 0)
goto add_local_failure;
return 0;
add_local_failure:
cipso_v4_doi_free(doi_def);
return ret_val;
}
......@@ -412,14 +430,18 @@ static int netlbl_cipsov4_add(struct sk_buff *skb, struct genl_info *info)
type = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_MTYPE]);
switch (type) {
case CIPSO_V4_MAP_STD:
type_str = "std";
case CIPSO_V4_MAP_TRANS:
type_str = "trans";
ret_val = netlbl_cipsov4_add_std(info);
break;
case CIPSO_V4_MAP_PASS:
type_str = "pass";
ret_val = netlbl_cipsov4_add_pass(info);
break;
case CIPSO_V4_MAP_LOCAL:
type_str = "local";
ret_val = netlbl_cipsov4_add_local(info);
break;
}
if (ret_val == 0)
atomic_inc(&netlabel_mgmt_protocount);
......@@ -491,7 +513,7 @@ static int netlbl_cipsov4_list(struct sk_buff *skb, struct genl_info *info)
doi_def = cipso_v4_doi_getdef(doi);
if (doi_def == NULL) {
ret_val = -EINVAL;
goto list_failure;
goto list_failure_lock;
}
ret_val = nla_put_u32(ans_skb, NLBL_CIPSOV4_A_MTYPE, doi_def->type);
......@@ -516,7 +538,7 @@ static int netlbl_cipsov4_list(struct sk_buff *skb, struct genl_info *info)
nla_nest_end(ans_skb, nla_a);
switch (doi_def->type) {
case CIPSO_V4_MAP_STD:
case CIPSO_V4_MAP_TRANS:
nla_a = nla_nest_start(ans_skb, NLBL_CIPSOV4_A_MLSLVLLST);
if (nla_a == NULL) {
ret_val = -ENOMEM;
......@@ -655,7 +677,7 @@ static int netlbl_cipsov4_listall(struct sk_buff *skb,
struct netlink_callback *cb)
{
struct netlbl_cipsov4_doiwalk_arg cb_arg;
int doi_skip = cb->args[0];
u32 doi_skip = cb->args[0];
cb_arg.nl_cb = cb;
cb_arg.skb = skb;
......@@ -667,6 +689,29 @@ static int netlbl_cipsov4_listall(struct sk_buff *skb,
return skb->len;
}
/**
* netlbl_cipsov4_remove_cb - netlbl_cipsov4_remove() callback for REMOVE
* @entry: LSM domain mapping entry
* @arg: the netlbl_domhsh_walk_arg structure
*
* Description:
* This function is intended for use by netlbl_cipsov4_remove() as the callback
* for the netlbl_domhsh_walk() function; it removes LSM domain map entries
* which are associated with the CIPSO DOI specified in @arg. Returns zero on
* success, negative values on failure.
*
*/
static int netlbl_cipsov4_remove_cb(struct netlbl_dom_map *entry, void *arg)
{
struct netlbl_domhsh_walk_arg *cb_arg = arg;
if (entry->type == NETLBL_NLTYPE_CIPSOV4 &&
entry->type_def.cipsov4->doi == cb_arg->doi)
return netlbl_domhsh_remove_entry(entry, cb_arg->audit_info);
return 0;
}
/**
* netlbl_cipsov4_remove - Handle a REMOVE message
* @skb: the NETLINK buffer
......@@ -681,8 +726,11 @@ static int netlbl_cipsov4_remove(struct sk_buff *skb, struct genl_info *info)
{
int ret_val = -EINVAL;
u32 doi = 0;
struct netlbl_domhsh_walk_arg cb_arg;
struct audit_buffer *audit_buf;
struct netlbl_audit audit_info;
u32 skip_bkt = 0;
u32 skip_chain = 0;
if (!info->attrs[NLBL_CIPSOV4_A_DOI])
return -EINVAL;
......@@ -690,11 +738,15 @@ static int netlbl_cipsov4_remove(struct sk_buff *skb, struct genl_info *info)
doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]);
netlbl_netlink_auditinfo(skb, &audit_info);
ret_val = cipso_v4_doi_remove(doi,
&audit_info,
netlbl_cipsov4_doi_free);
if (ret_val == 0)
atomic_dec(&netlabel_mgmt_protocount);
cb_arg.doi = doi;
cb_arg.audit_info = &audit_info;
ret_val = netlbl_domhsh_walk(&skip_bkt, &skip_chain,
netlbl_cipsov4_remove_cb, &cb_arg);
if (ret_val == 0 || ret_val == -ENOENT) {
ret_val = cipso_v4_doi_remove(doi, &audit_info);
if (ret_val == 0)
atomic_dec(&netlabel_mgmt_protocount);
}
audit_buf = netlbl_audit_start_common(AUDIT_MAC_CIPSOV4_DEL,
&audit_info);
......
......@@ -45,12 +45,13 @@
* NLBL_CIPSOV4_A_MTYPE
* NLBL_CIPSOV4_A_TAGLST
*
* If using CIPSO_V4_MAP_STD the following attributes are required:
* If using CIPSO_V4_MAP_TRANS the following attributes are required:
*
* NLBL_CIPSOV4_A_MLSLVLLST
* NLBL_CIPSOV4_A_MLSCATLST
*
* If using CIPSO_V4_MAP_PASS no additional attributes are required.
* If using CIPSO_V4_MAP_PASS or CIPSO_V4_MAP_LOCAL no additional attributes
* are required.
*
* o REMOVE:
* Sent by an application to remove a specific DOI mapping table from the
......@@ -76,12 +77,13 @@
* NLBL_CIPSOV4_A_MTYPE
* NLBL_CIPSOV4_A_TAGLST
*
* If using CIPSO_V4_MAP_STD the following attributes are required:
* If using CIPSO_V4_MAP_TRANS the following attributes are required:
*
* NLBL_CIPSOV4_A_MLSLVLLST
* NLBL_CIPSOV4_A_MLSCATLST
*
* If using CIPSO_V4_MAP_PASS no additional attributes are required.
* If using CIPSO_V4_MAP_PASS or CIPSO_V4_MAP_LOCAL no additional attributes
* are required.
*
* o LISTALL:
* This message is sent by an application to list the valid DOIs on the
......
This diff is collapsed.
......@@ -11,7 +11,7 @@
*/
/*
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006, 2008
*
* 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
......@@ -36,16 +36,43 @@
#include <linux/rcupdate.h>
#include <linux/list.h>
#include "netlabel_addrlist.h"
/* Domain hash table size */
/* XXX - currently this number is an uneducated guess */
#define NETLBL_DOMHSH_BITSIZE 7
/* Domain mapping definition struct */
/* Domain mapping definition structures */
#define netlbl_domhsh_addr4_entry(iter) \
container_of(iter, struct netlbl_domaddr4_map, list)
struct netlbl_domaddr4_map {
u32 type;
union {
struct cipso_v4_doi *cipsov4;
} type_def;
struct netlbl_af4list list;
};
#define netlbl_domhsh_addr6_entry(iter) \
container_of(iter, struct netlbl_domaddr6_map, list)
struct netlbl_domaddr6_map {
u32 type;
/* NOTE: no 'type_def' union needed at present since we don't currently
* support any IPv6 labeling protocols */
struct netlbl_af6list list;
};
struct netlbl_domaddr_map {
struct list_head list4;
struct list_head list6;
};
struct netlbl_dom_map {
char *domain;
u32 type;
union {
struct cipso_v4_doi *cipsov4;
struct netlbl_domaddr_map *addrsel;
} type_def;
u32 valid;
......@@ -61,12 +88,21 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
struct netlbl_audit *audit_info);
int netlbl_domhsh_add_default(struct netlbl_dom_map *entry,
struct netlbl_audit *audit_info);
int netlbl_domhsh_remove_entry(struct netlbl_dom_map *entry,
struct netlbl_audit *audit_info);
int netlbl_domhsh_remove(const char *domain, struct netlbl_audit *audit_info);
int netlbl_domhsh_remove_default(struct netlbl_audit *audit_info);
struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain);
struct netlbl_domaddr4_map *netlbl_domhsh_getentry_af4(const char *domain,
__be32 addr);
int netlbl_domhsh_walk(u32 *skip_bkt,
u32 *skip_chain,
int (*callback) (struct netlbl_dom_map *entry, void *arg),
void *cb_arg);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
struct netlbl_domaddr6_map *netlbl_domhsh_getentry_af6(const char *domain,
const struct in6_addr *addr);
#endif /* IPv6 */
#endif
This diff is collapsed.
This diff is collapsed.
......@@ -45,6 +45,16 @@
* NLBL_MGMT_A_DOMAIN
* NLBL_MGMT_A_PROTOCOL
*
* If IPv4 is specified the following attributes are required:
*
* NLBL_MGMT_A_IPV4ADDR
* NLBL_MGMT_A_IPV4MASK
*
* If IPv6 is specified the following attributes are required:
*
* NLBL_MGMT_A_IPV6ADDR
* NLBL_MGMT_A_IPV6MASK
*
* If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required:
*
* NLBL_MGMT_A_CV4DOI
......@@ -68,13 +78,24 @@
* Required attributes:
*
* NLBL_MGMT_A_DOMAIN
*
* If the IP address selectors are not used the following attribute is
* required:
*
* NLBL_MGMT_A_PROTOCOL
*
* If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required:
* If the IP address selectors are used then the following attritbute is
* required:
*
* NLBL_MGMT_A_SELECTORLIST
*
* If the mapping is using the NETLBL_NLTYPE_CIPSOV4 type then the following
* attributes are required:
*
* NLBL_MGMT_A_CV4DOI
*
* If using NETLBL_NLTYPE_UNLABELED no other attributes are required.
* If the mapping is using the NETLBL_NLTYPE_UNLABELED type no other
* attributes are required.
*
* o ADDDEF:
* Sent by an application to set the default domain mapping for the NetLabel
......@@ -100,15 +121,23 @@
* application there is no payload. On success the kernel should send a
* response using the following format.
*
* Required attributes:
* If the IP address selectors are not used the following attribute is
* required:
*
* NLBL_MGMT_A_PROTOCOL
*
* If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required:
* If the IP address selectors are used then the following attritbute is
* required:
*
* NLBL_MGMT_A_SELECTORLIST
*
* If the mapping is using the NETLBL_NLTYPE_CIPSOV4 type then the following
* attributes are required:
*
* NLBL_MGMT_A_CV4DOI
*
* If using NETLBL_NLTYPE_UNLABELED no other attributes are required.
* If the mapping is using the NETLBL_NLTYPE_UNLABELED type no other
* attributes are required.
*
* o PROTOCOLS:
* Sent by an application to request a list of configured NetLabel protocols
......@@ -162,6 +191,26 @@ enum {
NLBL_MGMT_A_CV4DOI,
/* (NLA_U32)
* the CIPSOv4 DOI value */
NLBL_MGMT_A_IPV6ADDR,
/* (NLA_BINARY, struct in6_addr)
* an IPv6 address */
NLBL_MGMT_A_IPV6MASK,
/* (NLA_BINARY, struct in6_addr)
* an IPv6 address mask */
NLBL_MGMT_A_IPV4ADDR,
/* (NLA_BINARY, struct in_addr)
* an IPv4 address */
NLBL_MGMT_A_IPV4MASK,
/* (NLA_BINARY, struct in_addr)
* and IPv4 address mask */
NLBL_MGMT_A_ADDRSELECTOR,
/* (NLA_NESTED)
* an IP address selector, must contain an address, mask, and protocol
* attribute plus any protocol specific attributes */
NLBL_MGMT_A_SELECTORLIST,
/* (NLA_NESTED)
* the selector list, there must be at least one
* NLBL_MGMT_A_ADDRSELECTOR attribute */
__NLBL_MGMT_A_MAX,
};
#define NLBL_MGMT_A_MAX (__NLBL_MGMT_A_MAX - 1)
......
This diff is collapsed.
......@@ -20,8 +20,7 @@
#include <linux/init.h>
#include <linux/namei.h>
#include <linux/security.h>
#define SECURITYFS_MAGIC 0x73636673
#include <linux/magic.h>
static struct vfsmount *mount;
static int mount_count;
......
This diff is collapsed.
This diff is collapsed.
......@@ -109,16 +109,19 @@ struct netport_security_struct {
};
struct sk_security_struct {
u32 sid; /* SID of this object */
u32 peer_sid; /* SID of peer */
u16 sclass; /* sock security class */
#ifdef CONFIG_NETLABEL
enum { /* NetLabel state */
NLBL_UNSET = 0,
NLBL_REQUIRE,
NLBL_LABELED,
NLBL_REQSKB,
NLBL_CONNLABELED,
} nlbl_state;
struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */
#endif
u32 sid; /* SID of this object */
u32 peer_sid; /* SID of peer */
u16 sclass; /* sock security class */
};
struct key_security_struct {
......
This diff is collapsed.
This diff is collapsed.
......@@ -2179,7 +2179,10 @@ static int smack_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
* This is the simplist possible security model
* for networking.
*/
return smk_access(smack, ssp->smk_in, MAY_WRITE);
rc = smk_access(smack, ssp->smk_in, MAY_WRITE);
if (rc != 0)
netlbl_skbuff_err(skb, rc, 0);
return rc;
}
/**
......
......@@ -354,9 +354,11 @@ static void smk_cipso_doi(void)
doip->tags[rc] = CIPSO_V4_TAG_INVALID;
rc = netlbl_cfg_cipsov4_add_map(doip, NULL, &audit_info);
if (rc != 0)
if (rc != 0) {
printk(KERN_WARNING "%s:%d add rc = %d\n",
__func__, __LINE__, rc);
kfree(doip);
}
}
/**
......
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