* the Free Software Foundation, version 2.
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/pagemap.h>
#include <linux/slab.h>
#include <linux/major.h>
#include <linux/seq_file.h>
#include <linux/percpu.h>
+#include <linux/audit.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
unsigned int selinux_checkreqprot = CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE;
+#ifdef CONFIG_SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT
+#define SELINUX_COMPAT_NET_VALUE 0
+#else
+#define SELINUX_COMPAT_NET_VALUE 1
+#endif
+
+int selinux_compat_net = SELINUX_COMPAT_NET_VALUE;
+
static int __init checkreqprot_setup(char *str)
{
selinux_checkreqprot = simple_strtoul(str,NULL,0) ? 1 : 0;
}
__setup("checkreqprot=", checkreqprot_setup);
+static int __init selinux_compat_net_setup(char *str)
+{
+ selinux_compat_net = simple_strtoul(str,NULL,0) ? 1 : 0;
+ return 1;
+}
+__setup("selinux_compat_net=", selinux_compat_net_setup);
+
static DEFINE_MUTEX(sel_mutex);
SEL_AVC, /* AVC management directory */
SEL_MEMBER, /* compute polyinstantiation membership decision */
SEL_CHECKREQPROT, /* check requested protection, not kernel-applied one */
+ SEL_COMPAT_NET, /* whether to use old compat network packet controls */
};
#define TMPBUFLEN 12
length = task_has_security(current, SECURITY__SETENFORCE);
if (length)
goto out;
+ audit_log(current->audit_context, GFP_KERNEL, AUDIT_MAC_STATUS,
+ "enforcing=%d old_enforcing=%d auid=%u", new_value,
+ selinux_enforcing,
+ audit_get_loginuid(current->audit_context));
selinux_enforcing = new_value;
if (selinux_enforcing)
avc_ss_reset(0);
#define sel_write_enforce NULL
#endif
-static struct file_operations sel_enforce_ops = {
+static const struct file_operations sel_enforce_ops = {
.read = sel_read_enforce,
.write = sel_write_enforce,
};
length = selinux_disable();
if (length < 0)
goto out;
+ audit_log(current->audit_context, GFP_KERNEL, AUDIT_MAC_STATUS,
+ "selinux=0 auid=%u",
+ audit_get_loginuid(current->audit_context));
}
length = count;
#define sel_write_disable NULL
#endif
-static struct file_operations sel_disable_ops = {
+static const struct file_operations sel_disable_ops = {
.write = sel_write_disable,
};
return simple_read_from_buffer(buf, count, ppos, tmpbuf, length);
}
-static struct file_operations sel_policyvers_ops = {
+static const struct file_operations sel_policyvers_ops = {
.read = sel_read_policyvers,
};
return simple_read_from_buffer(buf, count, ppos, tmpbuf, length);
}
-static struct file_operations sel_mls_ops = {
+static const struct file_operations sel_mls_ops = {
.read = sel_read_mls,
};
length = ret;
else
length = count;
+ audit_log(current->audit_context, GFP_KERNEL, AUDIT_MAC_POLICY_LOAD,
+ "policy loaded auid=%u",
+ audit_get_loginuid(current->audit_context));
out:
mutex_unlock(&sel_mutex);
vfree(data);
return length;
}
-static struct file_operations sel_load_ops = {
+static const struct file_operations sel_load_ops = {
.write = sel_write_load,
};
free_page((unsigned long) page);
return length;
}
-static struct file_operations sel_checkreqprot_ops = {
+static const struct file_operations sel_checkreqprot_ops = {
.read = sel_read_checkreqprot,
.write = sel_write_checkreqprot,
};
+static ssize_t sel_read_compat_net(struct file *filp, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ char tmpbuf[TMPBUFLEN];
+ ssize_t length;
+
+ length = scnprintf(tmpbuf, TMPBUFLEN, "%d", selinux_compat_net);
+ return simple_read_from_buffer(buf, count, ppos, tmpbuf, length);
+}
+
+static ssize_t sel_write_compat_net(struct file * file, const char __user * buf,
+ size_t count, loff_t *ppos)
+{
+ char *page;
+ ssize_t length;
+ int new_value;
+
+ length = task_has_security(current, SECURITY__LOAD_POLICY);
+ if (length)
+ return length;
+
+ if (count >= PAGE_SIZE)
+ return -ENOMEM;
+ if (*ppos != 0) {
+ /* No partial writes. */
+ return -EINVAL;
+ }
+ page = (char*)get_zeroed_page(GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
+ length = -EFAULT;
+ if (copy_from_user(page, buf, count))
+ goto out;
+
+ length = -EINVAL;
+ if (sscanf(page, "%d", &new_value) != 1)
+ goto out;
+
+ selinux_compat_net = new_value ? 1 : 0;
+ length = count;
+out:
+ free_page((unsigned long) page);
+ return length;
+}
+static const struct file_operations sel_compat_net_ops = {
+ .read = sel_read_compat_net,
+ .write = sel_write_compat_net,
+};
+
/*
* Remaining nodes use transaction based IO methods like nfsd/nfsctl.c
*/
static ssize_t selinux_transaction_write(struct file *file, const char __user *buf, size_t size, loff_t *pos)
{
- ino_t ino = file->f_dentry->d_inode->i_ino;
+ ino_t ino = file->f_path.dentry->d_inode->i_ino;
char *data;
ssize_t rv;
return rv;
}
-static struct file_operations transaction_ops = {
+static const struct file_operations transaction_ops = {
.write = selinux_transaction_write,
.read = simple_transaction_read,
.release = simple_transaction_release,
if (ret) {
ret->i_mode = mode;
ret->i_uid = ret->i_gid = 0;
- ret->i_blksize = PAGE_CACHE_SIZE;
ret->i_blocks = 0;
ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
}
goto out;
}
- inode = filep->f_dentry->d_inode;
+ inode = filep->f_path.dentry->d_inode;
cur_enforcing = security_get_bool_value(inode->i_ino - BOOL_INO_OFFSET);
if (cur_enforcing < 0) {
ret = cur_enforcing;
if (new_value)
new_value = 1;
- inode = filep->f_dentry->d_inode;
+ inode = filep->f_path.dentry->d_inode;
bool_pending_values[inode->i_ino - BOOL_INO_OFFSET] = new_value;
length = count;
return length;
}
-static struct file_operations sel_bool_ops = {
+static const struct file_operations sel_bool_ops = {
.read = sel_read_bool,
.write = sel_write_bool,
};
return length;
}
-static struct file_operations sel_commit_bools_ops = {
+static const struct file_operations sel_commit_bools_ops = {
.write = sel_commit_bools_write,
};
file_list_lock();
list_for_each(p, &sb->s_files) {
struct file * filp = list_entry(p, struct file, f_u.fu_list);
- struct dentry * dentry = filp->f_dentry;
+ struct dentry * dentry = filp->f_path.dentry;
if (dentry->d_parent != de) {
continue;
return ret;
}
-static struct file_operations sel_avc_cache_threshold_ops = {
+static const struct file_operations sel_avc_cache_threshold_ops = {
.read = sel_read_avc_cache_threshold,
.write = sel_write_avc_cache_threshold,
};
-static struct file_operations sel_avc_hash_stats_ops = {
+static const struct file_operations sel_avc_hash_stats_ops = {
.read = sel_read_avc_hash_stats,
};
return seq_open(file, &sel_avc_cache_stats_seq_ops);
}
-static struct file_operations sel_avc_cache_stats_ops = {
+static const struct file_operations sel_avc_cache_stats_ops = {
.open = sel_open_avc_cache_stats,
.read = seq_read,
.llseek = seq_lseek,
dentry = d_alloc_name(dir, files[i].name);
if (!dentry) {
ret = -ENOMEM;
- goto err;
+ goto out;
}
inode = sel_make_inode(dir->d_sb, S_IFREG|files[i].mode);
if (!inode) {
ret = -ENOMEM;
- goto err;
+ goto out;
}
inode->i_fop = files[i].ops;
d_add(dentry, inode);
}
out:
return ret;
-err:
- d_genocide(dir);
- goto out;
}
-static int sel_make_dir(struct super_block *sb, struct dentry *dentry)
+static int sel_make_dir(struct inode *dir, struct dentry *dentry)
{
int ret = 0;
struct inode *inode;
- inode = sel_make_inode(sb, S_IFDIR | S_IRUGO | S_IXUGO);
+ inode = sel_make_inode(dir->i_sb, S_IFDIR | S_IRUGO | S_IXUGO);
if (!inode) {
ret = -ENOMEM;
goto out;
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
/* directory inodes start off with i_nlink == 2 (for "." entry) */
- inode->i_nlink++;
+ inc_nlink(inode);
d_add(dentry, inode);
+ /* bump link count on parent directory, too */
+ inc_nlink(dir);
out:
return ret;
}
{
int ret;
struct dentry *dentry;
- struct inode *inode;
+ struct inode *inode, *root_inode;
struct inode_security_struct *isec;
static struct tree_descr selinux_files[] = {
[SEL_DISABLE] = {"disable", &sel_disable_ops, S_IWUSR},
[SEL_MEMBER] = {"member", &transaction_ops, S_IRUGO|S_IWUGO},
[SEL_CHECKREQPROT] = {"checkreqprot", &sel_checkreqprot_ops, S_IRUGO|S_IWUSR},
+ [SEL_COMPAT_NET] = {"compat_net", &sel_compat_net_ops, S_IRUGO|S_IWUSR},
/* last one */ {""}
};
ret = simple_fill_super(sb, SELINUX_MAGIC, selinux_files);
if (ret)
goto err;
+ root_inode = sb->s_root->d_inode;
+
dentry = d_alloc_name(sb->s_root, BOOL_DIR_NAME);
if (!dentry) {
ret = -ENOMEM;
goto err;
}
- ret = sel_make_dir(sb, dentry);
+ ret = sel_make_dir(root_inode, dentry);
if (ret)
goto err;
goto err;
}
- ret = sel_make_dir(sb, dentry);
+ ret = sel_make_dir(root_inode, dentry);
if (ret)
goto err;
goto out;
}
-static struct super_block *sel_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int sel_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data,
+ struct vfsmount *mnt)
{
- return get_sb_single(fs_type, flags, data, sel_fill_super);
+ return get_sb_single(fs_type, flags, data, sel_fill_super, mnt);
}
static struct file_system_type sel_fs_type = {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff