unsigned long *nr_written, int unlock);
static int btrfs_init_inode_security(struct btrfs_trans_handle *trans,
- struct inode *inode, struct inode *dir)
+ struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
int err;
err = btrfs_init_acl(trans, inode, dir);
if (!err)
- err = btrfs_xattr_security_init(trans, inode, dir);
+ err = btrfs_xattr_security_init(trans, inode, dir, qstr);
return err;
}
if (IS_ERR(inode))
goto out_unlock;
- err = btrfs_init_inode_security(trans, inode, dir);
+ err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
if (err) {
drop_inode = 1;
goto out_unlock;
if (IS_ERR(inode))
goto out_unlock;
- err = btrfs_init_inode_security(trans, inode, dir);
+ err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
if (err) {
drop_inode = 1;
goto out_unlock;
drop_on_err = 1;
- err = btrfs_init_inode_security(trans, inode, dir);
+ err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
if (err)
goto out_fail;
if (IS_ERR(inode))
goto out_unlock;
- err = btrfs_init_inode_security(trans, inode, dir);
+ err = btrfs_init_inode_security(trans, inode, dir, &dentry->d_name);
if (err) {
drop_inode = 1;
goto out_unlock;
}
int btrfs_xattr_security_init(struct btrfs_trans_handle *trans,
- struct inode *inode, struct inode *dir)
+ struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
int err;
size_t len;
char *suffix;
char *name;
- err = security_inode_init_security(inode, dir, &suffix, &value, &len);
+ err = security_inode_init_security(inode, dir, qstr, &suffix, &value,
+ &len);
if (err) {
if (err == -EOPNOTSUPP)
return 0;
extern int btrfs_removexattr(struct dentry *dentry, const char *name);
extern int btrfs_xattr_security_init(struct btrfs_trans_handle *trans,
- struct inode *inode, struct inode *dir);
+ struct inode *inode, struct inode *dir,
+ const struct qstr *qstr);
#endif /* __XATTR__ */
extern void ext2_set_link(struct inode *, struct ext2_dir_entry_2 *, struct page *, struct inode *, int);
/* ialloc.c */
-extern struct inode * ext2_new_inode (struct inode *, int);
+extern struct inode * ext2_new_inode (struct inode *, int, const struct qstr *);
extern void ext2_free_inode (struct inode *);
extern unsigned long ext2_count_free_inodes (struct super_block *);
extern void ext2_check_inodes_bitmap (struct super_block *);
return group;
}
-struct inode *ext2_new_inode(struct inode *dir, int mode)
+struct inode *ext2_new_inode(struct inode *dir, int mode,
+ const struct qstr *qstr)
{
struct super_block *sb;
struct buffer_head *bitmap_bh = NULL;
if (err)
goto fail_free_drop;
- err = ext2_init_security(inode,dir);
+ err = ext2_init_security(inode, dir, qstr);
if (err)
goto fail_free_drop;
dquot_initialize(dir);
- inode = ext2_new_inode(dir, mode);
+ inode = ext2_new_inode(dir, mode, &dentry->d_name);
if (IS_ERR(inode))
return PTR_ERR(inode);
dquot_initialize(dir);
- inode = ext2_new_inode (dir, mode);
+ inode = ext2_new_inode (dir, mode, &dentry->d_name);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
init_special_inode(inode, inode->i_mode, rdev);
dquot_initialize(dir);
- inode = ext2_new_inode (dir, S_IFLNK | S_IRWXUGO);
+ inode = ext2_new_inode (dir, S_IFLNK | S_IRWXUGO, &dentry->d_name);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out;
inode_inc_link_count(dir);
- inode = ext2_new_inode (dir, S_IFDIR | mode);
+ inode = ext2_new_inode(dir, S_IFDIR | mode, &dentry->d_name);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
# endif /* CONFIG_EXT2_FS_XATTR */
#ifdef CONFIG_EXT2_FS_SECURITY
-extern int ext2_init_security(struct inode *inode, struct inode *dir);
+extern int ext2_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr);
#else
-static inline int ext2_init_security(struct inode *inode, struct inode *dir)
+static inline int ext2_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
return 0;
}
}
int
-ext2_init_security(struct inode *inode, struct inode *dir)
+ext2_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
int err;
size_t len;
void *value;
char *name;
- err = security_inode_init_security(inode, dir, &name, &value, &len);
+ err = security_inode_init_security(inode, dir, qstr, &name, &value, &len);
if (err) {
if (err == -EOPNOTSUPP)
return 0;
* For other inodes, search forward from the parent directory's block
* group to find a free inode.
*/
-struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
+struct inode *ext3_new_inode(handle_t *handle, struct inode * dir,
+ const struct qstr *qstr, int mode)
{
struct super_block *sb;
struct buffer_head *bitmap_bh = NULL;
if (err)
goto fail_free_drop;
- err = ext3_init_security(handle,inode, dir);
+ err = ext3_init_security(handle, inode, dir, qstr);
if (err)
goto fail_free_drop;
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, mode);
+ inode = ext3_new_inode (handle, dir, &dentry->d_name, mode);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
inode->i_op = &ext3_file_inode_operations;
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, mode);
+ inode = ext3_new_inode (handle, dir, &dentry->d_name, mode);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
init_special_inode(inode, inode->i_mode, rdev);
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, S_IFDIR | mode);
+ inode = ext3_new_inode (handle, dir, &dentry->d_name, S_IFDIR | mode);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_stop;
if (IS_DIRSYNC(dir))
handle->h_sync = 1;
- inode = ext3_new_inode (handle, dir, S_IFLNK|S_IRWXUGO);
+ inode = ext3_new_inode (handle, dir, &dentry->d_name, S_IFLNK|S_IRWXUGO);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_stop;
#ifdef CONFIG_EXT3_FS_SECURITY
extern int ext3_init_security(handle_t *handle, struct inode *inode,
- struct inode *dir);
+ struct inode *dir, const struct qstr *qstr);
#else
static inline int ext3_init_security(handle_t *handle, struct inode *inode,
- struct inode *dir)
+ struct inode *dir, const struct qstr *qstr)
{
return 0;
}
}
int
-ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
+ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
int err;
size_t len;
void *value;
char *name;
- err = security_inode_init_security(inode, dir, &name, &value, &len);
+ err = security_inode_init_security(inode, dir, qstr, &name, &value, &len);
if (err) {
if (err == -EOPNOTSUPP)
return 0;
if (err)
goto fail_free_drop;
- err = ext4_init_security(handle, inode, dir);
+ err = ext4_init_security(handle, inode, dir, qstr);
if (err)
goto fail_free_drop;
#ifdef CONFIG_EXT4_FS_SECURITY
extern int ext4_init_security(handle_t *handle, struct inode *inode,
- struct inode *dir);
+ struct inode *dir, const struct qstr *qstr);
#else
static inline int ext4_init_security(handle_t *handle, struct inode *inode,
- struct inode *dir)
+ struct inode *dir, const struct qstr *qstr)
{
return 0;
}
}
int
-ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
+ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
int err;
size_t len;
void *value;
char *name;
- err = security_inode_init_security(inode, dir, &name, &value, &len);
+ err = security_inode_init_security(inode, dir, qstr, &name, &value, &len);
if (err) {
if (err == -EOPNOTSUPP)
return 0;
return error;
}
-static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip)
+static int gfs2_security_init(struct gfs2_inode *dip, struct gfs2_inode *ip,
+ const struct qstr *qstr)
{
int err;
size_t len;
void *value;
char *name;
- err = security_inode_init_security(&ip->i_inode, &dip->i_inode,
+ err = security_inode_init_security(&ip->i_inode, &dip->i_inode, qstr,
&name, &value, &len);
if (err) {
if (error)
goto fail_gunlock2;
- error = gfs2_security_init(dip, GFS2_I(inode));
+ error = gfs2_security_init(dip, GFS2_I(inode), name);
if (error)
goto fail_gunlock2;
no chance of AB-BA deadlock involving its f->sem). */
mutex_unlock(&f->sem);
- ret = jffs2_do_create(c, dir_f, f, ri,
- dentry->d_name.name, dentry->d_name.len);
+ ret = jffs2_do_create(c, dir_f, f, ri, &dentry->d_name);
if (ret)
goto fail;
jffs2_complete_reservation(c);
- ret = jffs2_init_security(inode, dir_i);
+ ret = jffs2_init_security(inode, dir_i, &dentry->d_name);
if (ret)
goto fail;
jffs2_complete_reservation(c);
- ret = jffs2_init_security(inode, dir_i);
+ ret = jffs2_init_security(inode, dir_i, &dentry->d_name);
if (ret)
goto fail;
jffs2_complete_reservation(c);
- ret = jffs2_init_security(inode, dir_i);
+ ret = jffs2_init_security(inode, dir_i, &dentry->d_name);
if (ret)
goto fail;
struct jffs2_raw_inode *ri, unsigned char *buf,
uint32_t offset, uint32_t writelen, uint32_t *retlen);
int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f,
- struct jffs2_raw_inode *ri, const char *name, int namelen);
+ struct jffs2_raw_inode *ri, const struct qstr *qstr);
int jffs2_do_unlink(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, const char *name,
int namelen, struct jffs2_inode_info *dead_f, uint32_t time);
int jffs2_do_link(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, uint32_t ino,
#include "nodelist.h"
/* ---- Initial Security Label Attachment -------------- */
-int jffs2_init_security(struct inode *inode, struct inode *dir)
+int jffs2_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
int rc;
size_t len;
void *value;
char *name;
- rc = security_inode_init_security(inode, dir, &name, &value, &len);
+ rc = security_inode_init_security(inode, dir, qstr, &name, &value, &len);
if (rc) {
if (rc == -EOPNOTSUPP)
return 0;
return ret;
}
-int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f, struct jffs2_inode_info *f, struct jffs2_raw_inode *ri, const char *name, int namelen)
+int jffs2_do_create(struct jffs2_sb_info *c, struct jffs2_inode_info *dir_f,
+ struct jffs2_inode_info *f, struct jffs2_raw_inode *ri,
+ const struct qstr *qstr)
{
struct jffs2_raw_dirent *rd;
struct jffs2_full_dnode *fn;
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
- ret = jffs2_init_security(&f->vfs_inode, &dir_f->vfs_inode);
+ ret = jffs2_init_security(&f->vfs_inode, &dir_f->vfs_inode, qstr);
if (ret)
return ret;
ret = jffs2_init_acl_post(&f->vfs_inode);
if (ret)
return ret;
- ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &alloclen,
- ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
+ ret = jffs2_reserve_space(c, sizeof(*rd)+qstr->len, &alloclen,
+ ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(qstr->len));
if (ret) {
/* Eep. */
rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
- rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
+ rd->totlen = cpu_to_je32(sizeof(*rd) + qstr->len);
rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
rd->pino = cpu_to_je32(dir_f->inocache->ino);
rd->version = cpu_to_je32(++dir_f->highest_version);
rd->ino = ri->ino;
rd->mctime = ri->ctime;
- rd->nsize = namelen;
+ rd->nsize = qstr->len;
rd->type = DT_REG;
rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
- rd->name_crc = cpu_to_je32(crc32(0, name, namelen));
+ rd->name_crc = cpu_to_je32(crc32(0, qstr->name, qstr->len));
- fd = jffs2_write_dirent(c, dir_f, rd, name, namelen, ALLOC_NORMAL);
+ fd = jffs2_write_dirent(c, dir_f, rd, qstr->name, qstr->len, ALLOC_NORMAL);
jffs2_free_raw_dirent(rd);
#endif /* CONFIG_JFFS2_FS_XATTR */
#ifdef CONFIG_JFFS2_FS_SECURITY
-extern int jffs2_init_security(struct inode *inode, struct inode *dir);
+extern int jffs2_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr);
extern const struct xattr_handler jffs2_security_xattr_handler;
#else
-#define jffs2_init_security(inode,dir) (0)
+#define jffs2_init_security(inode,dir,qstr) (0)
#endif /* CONFIG_JFFS2_FS_SECURITY */
#endif /* _JFFS2_FS_XATTR_H_ */
extern int jfs_removexattr(struct dentry *, const char *);
#ifdef CONFIG_JFS_SECURITY
-extern int jfs_init_security(tid_t, struct inode *, struct inode *);
+extern int jfs_init_security(tid_t, struct inode *, struct inode *,
+ const struct qstr *);
#else
static inline int jfs_init_security(tid_t tid, struct inode *inode,
- struct inode *dir)
+ struct inode *dir, const struct qstr *qstr)
{
return 0;
}
if (rc)
goto out3;
- rc = jfs_init_security(tid, ip, dip);
+ rc = jfs_init_security(tid, ip, dip, &dentry->d_name);
if (rc) {
txAbort(tid, 0);
goto out3;
if (rc)
goto out3;
- rc = jfs_init_security(tid, ip, dip);
+ rc = jfs_init_security(tid, ip, dip, &dentry->d_name);
if (rc) {
txAbort(tid, 0);
goto out3;
mutex_lock_nested(&JFS_IP(dip)->commit_mutex, COMMIT_MUTEX_PARENT);
mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);
- rc = jfs_init_security(tid, ip, dip);
+ rc = jfs_init_security(tid, ip, dip, &dentry->d_name);
if (rc)
goto out3;
if (rc)
goto out3;
- rc = jfs_init_security(tid, ip, dir);
+ rc = jfs_init_security(tid, ip, dir, &dentry->d_name);
if (rc) {
txAbort(tid, 0);
goto out3;
}
#ifdef CONFIG_JFS_SECURITY
-int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir)
+int jfs_init_security(tid_t tid, struct inode *inode, struct inode *dir,
+ const struct qstr *qstr)
{
int rc;
size_t len;
char *suffix;
char *name;
- rc = security_inode_init_security(inode, dir, &suffix, &value, &len);
+ rc = security_inode_init_security(inode, dir, qstr, &suffix, &value,
+ &len);
if (rc) {
if (rc == -EOPNOTSUPP)
return 0;
if (path->dentry != path->mnt->mnt_root)
return -EINVAL;
+ err = security_sb_remount(sb, data);
+ if (err)
+ return err;
+
down_write(&sb->s_umount);
if (flags & MS_BIND)
err = change_mount_flags(path->mnt, flags);
}
/* get security xattr */
- status = ocfs2_init_security_get(inode, dir, &si);
+ status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
if (status) {
if (status == -EOPNOTSUPP)
si.enable = 0;
}
/* get security xattr */
- status = ocfs2_init_security_get(inode, dir, &si);
+ status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
if (status) {
if (status == -EOPNOTSUPP)
si.enable = 0;
/* If the security isn't preserved, we need to re-initialize them. */
if (!preserve) {
- error = ocfs2_init_security_and_acl(dir, new_orphan_inode);
+ error = ocfs2_init_security_and_acl(dir, new_orphan_inode,
+ &new_dentry->d_name);
if (error)
mlog_errno(error);
}
* must not hold any lock expect i_mutex.
*/
int ocfs2_init_security_and_acl(struct inode *dir,
- struct inode *inode)
+ struct inode *inode,
+ const struct qstr *qstr)
{
int ret = 0;
struct buffer_head *dir_bh = NULL;
.enable = 1,
};
- ret = ocfs2_init_security_get(inode, dir, &si);
+ ret = ocfs2_init_security_get(inode, dir, qstr, &si);
if (!ret) {
ret = ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_SECURITY,
si.name, si.value, si.value_len,
int ocfs2_init_security_get(struct inode *inode,
struct inode *dir,
+ const struct qstr *qstr,
struct ocfs2_security_xattr_info *si)
{
/* check whether ocfs2 support feature xattr */
if (!ocfs2_supports_xattr(OCFS2_SB(dir->i_sb)))
return -EOPNOTSUPP;
- return security_inode_init_security(inode, dir, &si->name, &si->value,
- &si->value_len);
+ return security_inode_init_security(inode, dir, qstr, &si->name,
+ &si->value, &si->value_len);
}
int ocfs2_init_security_set(handle_t *handle,
struct ocfs2_dinode *di);
int ocfs2_xattr_remove(struct inode *, struct buffer_head *);
int ocfs2_init_security_get(struct inode *, struct inode *,
+ const struct qstr *,
struct ocfs2_security_xattr_info *);
int ocfs2_init_security_set(handle_t *, struct inode *,
struct buffer_head *,
struct buffer_head *new_bh,
bool preserve_security);
int ocfs2_init_security_and_acl(struct inode *dir,
- struct inode *inode);
+ struct inode *inode,
+ const struct qstr *qstr);
#endif /* OCFS2_XATTR_H */
ei->sysctl_entry = table;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
- inode->i_flags |= S_PRIVATE; /* tell selinux to ignore this inode */
inode->i_mode = table->mode;
if (!table->child) {
inode->i_mode |= S_IFREG;
new_inode_init(inode, dir, mode);
jbegin_count += reiserfs_cache_default_acl(dir);
- retval = reiserfs_security_init(dir, inode, &security);
+ retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
if (retval < 0) {
drop_new_inode(inode);
return retval;
new_inode_init(inode, dir, mode);
jbegin_count += reiserfs_cache_default_acl(dir);
- retval = reiserfs_security_init(dir, inode, &security);
+ retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
if (retval < 0) {
drop_new_inode(inode);
return retval;
new_inode_init(inode, dir, mode);
jbegin_count += reiserfs_cache_default_acl(dir);
- retval = reiserfs_security_init(dir, inode, &security);
+ retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
if (retval < 0) {
drop_new_inode(inode);
return retval;
}
new_inode_init(inode, parent_dir, mode);
- retval = reiserfs_security_init(parent_dir, inode, &security);
+ retval = reiserfs_security_init(parent_dir, inode, &dentry->d_name,
+ &security);
if (retval < 0) {
drop_new_inode(inode);
return retval;
* of blocks needed for the transaction. If successful, reiserfs_security
* must be released using reiserfs_security_free when the caller is done. */
int reiserfs_security_init(struct inode *dir, struct inode *inode,
+ const struct qstr *qstr,
struct reiserfs_security_handle *sec)
{
int blocks = 0;
if (IS_PRIVATE(dir))
return 0;
- error = security_inode_init_security(inode, dir, &sec->name,
+ error = security_inode_init_security(inode, dir, qstr, &sec->name,
&sec->value, &sec->length);
if (error) {
if (error == -EOPNOTSUPP)
STATIC int
xfs_init_security(
struct inode *inode,
- struct inode *dir)
+ struct inode *dir,
+ const struct qstr *qstr)
{
struct xfs_inode *ip = XFS_I(inode);
size_t length;
unsigned char *name;
int error;
- error = security_inode_init_security(inode, dir, (char **)&name,
+ error = security_inode_init_security(inode, dir, qstr, (char **)&name,
&value, &length);
if (error) {
if (error == -EOPNOTSUPP)
inode = VFS_I(ip);
- error = xfs_init_security(inode, dir);
+ error = xfs_init_security(inode, dir, &dentry->d_name);
if (unlikely(error))
goto out_cleanup_inode;
inode = VFS_I(cip);
- error = xfs_init_security(inode, dir);
+ error = xfs_init_security(inode, dir, &dentry->d_name);
if (unlikely(error))
goto out_cleanup_inode;
dx_hash_info *hinfo);
/* ialloc.c */
-extern struct inode * ext3_new_inode (handle_t *, struct inode *, int);
+extern struct inode * ext3_new_inode (handle_t *, struct inode *,
+ const struct qstr *, int);
extern void ext3_free_inode (handle_t *, struct inode *);
extern struct inode * ext3_orphan_get (struct super_block *, unsigned long);
extern unsigned long ext3_count_free_inodes (struct super_block *);
extern const struct xattr_handler reiserfs_xattr_security_handler;
#ifdef CONFIG_REISERFS_FS_SECURITY
int reiserfs_security_init(struct inode *dir, struct inode *inode,
+ const struct qstr *qstr,
struct reiserfs_security_handle *sec);
int reiserfs_security_write(struct reiserfs_transaction_handle *th,
struct inode *inode,
#ifndef CONFIG_REISERFS_FS_SECURITY
static inline int reiserfs_security_init(struct inode *dir,
struct inode *inode,
+ const struct qstr *qstr,
struct reiserfs_security_handle *sec)
{
return 0;
#include <linux/fs.h>
#include <linux/fsnotify.h>
#include <linux/binfmts.h>
+#include <linux/dcache.h>
#include <linux/signal.h>
#include <linux/resource.h>
#include <linux/sem.h>
* @orig the original mount data copied from userspace.
* @copy copied data which will be passed to the security module.
* Returns 0 if the copy was successful.
+ * @sb_remount:
+ * Extracts security system specifc mount options and verifys no changes
+ * are being made to those options.
+ * @sb superblock being remounted
+ * @data contains the filesystem-specific data.
+ * Return 0 if permission is granted.
* @sb_umount:
* Check permission before the @mnt file system is unmounted.
* @mnt contains the mounted file system.
* then it should return -EOPNOTSUPP to skip this processing.
* @inode contains the inode structure of the newly created inode.
* @dir contains the inode structure of the parent directory.
+ * @qstr contains the last path component of the new object
* @name will be set to the allocated name suffix (e.g. selinux).
* @value will be set to the allocated attribute value.
* @len will be set to the length of the value.
* @cap contains the capability <include/linux/capability.h>.
* @audit: Whether to write an audit message or not
* Return 0 if the capability is granted for @tsk.
- * @sysctl:
- * Check permission before accessing the @table sysctl variable in the
- * manner specified by @op.
- * @table contains the ctl_table structure for the sysctl variable.
- * @op contains the operation (001 = search, 002 = write, 004 = read).
- * Return 0 if permission is granted.
* @syslog:
* Check permission before accessing the kernel message ring or changing
* logging to the console.
const kernel_cap_t *permitted);
int (*capable) (struct task_struct *tsk, const struct cred *cred,
int cap, int audit);
- int (*sysctl) (struct ctl_table *table, int op);
int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
int (*quota_on) (struct dentry *dentry);
int (*syslog) (int type);
int (*sb_alloc_security) (struct super_block *sb);
void (*sb_free_security) (struct super_block *sb);
int (*sb_copy_data) (char *orig, char *copy);
+ int (*sb_remount) (struct super_block *sb, void *data);
int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
int (*sb_statfs) (struct dentry *dentry);
int (*inode_alloc_security) (struct inode *inode);
void (*inode_free_security) (struct inode *inode);
int (*inode_init_security) (struct inode *inode, struct inode *dir,
- char **name, void **value, size_t *len);
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len);
int (*inode_create) (struct inode *dir,
struct dentry *dentry, int mode);
int (*inode_link) (struct dentry *old_dentry,
int security_capable(const struct cred *cred, int cap);
int security_real_capable(struct task_struct *tsk, int cap);
int security_real_capable_noaudit(struct task_struct *tsk, int cap);
-int security_sysctl(struct ctl_table *table, int op);
int security_quotactl(int cmds, int type, int id, struct super_block *sb);
int security_quota_on(struct dentry *dentry);
int security_syslog(int type);
int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
int security_sb_copy_data(char *orig, char *copy);
+int security_sb_remount(struct super_block *sb, void *data);
int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
int security_sb_statfs(struct dentry *dentry);
int security_inode_alloc(struct inode *inode);
void security_inode_free(struct inode *inode);
int security_inode_init_security(struct inode *inode, struct inode *dir,
- char **name, void **value, size_t *len);
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len);
int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
int security_inode_link(struct dentry *old_dentry, struct inode *dir,
struct dentry *new_dentry);
return ret;
}
-static inline int security_sysctl(struct ctl_table *table, int op)
-{
- return 0;
-}
-
static inline int security_quotactl(int cmds, int type, int id,
struct super_block *sb)
{
return 0;
}
+static inline int security_sb_remount(struct super_block *sb, void *data)
+{
+ return 0;
+}
+
static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
return 0;
static inline int security_inode_init_security(struct inode *inode,
struct inode *dir,
+ const struct qstr *qstr,
char **name,
void **value,
size_t *len)
int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op)
{
- int error;
int mode;
- error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC));
- if (error)
- return error;
-
if (root->permissions)
mode = root->permissions(root, current->nsproxy, table);
else
inode = shmem_get_inode(dir->i_sb, dir, mode, dev, VM_NORESERVE);
if (inode) {
- error = security_inode_init_security(inode, dir, NULL, NULL,
- NULL);
+ error = security_inode_init_security(inode, dir,
+ &dentry->d_name, NULL,
+ NULL, NULL);
if (error) {
if (error != -EOPNOTSUPP) {
iput(inode);
if (!inode)
return -ENOSPC;
- error = security_inode_init_security(inode, dir, NULL, NULL,
- NULL);
+ error = security_inode_init_security(inode, dir, &dentry->d_name, NULL,
+ NULL, NULL);
if (error) {
if (error != -EOPNOTSUPP) {
iput(inode);
int i, j, k;
int isids_len;
FILE *fout;
+ const char *needle = "SOCKET";
+ char *substr;
progname = argv[0];
fprintf(fout, "%2d\n", i);
}
fprintf(fout, "\n#define SECINITSID_NUM %d\n", i-1);
+ fprintf(fout, "\nstatic inline bool security_is_socket_class(u16 kern_tclass)\n");
+ fprintf(fout, "{\n");
+ fprintf(fout, "\tbool sock = false;\n\n");
+ fprintf(fout, "\tswitch (kern_tclass) {\n");
+ for (i = 0; secclass_map[i].name; i++) {
+ struct security_class_mapping *map = &secclass_map[i];
+ substr = strstr(map->name, needle);
+ if (substr && strcmp(substr, needle) == 0)
+ fprintf(fout, "\tcase SECCLASS_%s:\n", map->name);
+ }
+ fprintf(fout, "\t\tsock = true;\n");
+ fprintf(fout, "\t\tbreak;\n");
+ fprintf(fout, "\tdefault:\n");
+ fprintf(fout, "\t\tbreak;\n");
+ fprintf(fout, "\t}\n\n");
+ fprintf(fout, "\treturn sock;\n");
+ fprintf(fout, "}\n");
+
fprintf(fout, "\n#endif\n");
fclose(fout);
#include <linux/security.h>
-static int cap_sysctl(ctl_table *table, int op)
-{
- return 0;
-}
-
static int cap_syslog(int type)
{
return 0;
return 0;
}
+static int cap_sb_remount(struct super_block *sb, void *data)
+{
+ return 0;
+}
+
static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
return 0;
}
static int cap_inode_init_security(struct inode *inode, struct inode *dir,
- char **name, void **value, size_t *len)
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len)
{
return -EOPNOTSUPP;
}
set_to_cap_if_null(ops, capable);
set_to_cap_if_null(ops, quotactl);
set_to_cap_if_null(ops, quota_on);
- set_to_cap_if_null(ops, sysctl);
set_to_cap_if_null(ops, syslog);
set_to_cap_if_null(ops, settime);
set_to_cap_if_null(ops, vm_enough_memory);
set_to_cap_if_null(ops, sb_alloc_security);
set_to_cap_if_null(ops, sb_free_security);
set_to_cap_if_null(ops, sb_copy_data);
+ set_to_cap_if_null(ops, sb_remount);
set_to_cap_if_null(ops, sb_kern_mount);
set_to_cap_if_null(ops, sb_show_options);
set_to_cap_if_null(ops, sb_statfs);
return ret;
}
-int security_sysctl(struct ctl_table *table, int op)
-{
- return security_ops->sysctl(table, op);
-}
-
int security_quotactl(int cmds, int type, int id, struct super_block *sb)
{
return security_ops->quotactl(cmds, type, id, sb);
}
EXPORT_SYMBOL(security_sb_copy_data);
+int security_sb_remount(struct super_block *sb, void *data)
+{
+ return security_ops->sb_remount(sb, data);
+}
+
int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
return security_ops->sb_kern_mount(sb, flags, data);
}
int security_inode_init_security(struct inode *inode, struct inode *dir,
- char **name, void **value, size_t *len)
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len)
{
if (unlikely(IS_PRIVATE(inode)))
return -EOPNOTSUPP;
- return security_ops->inode_init_security(inode, dir, name, value, len);
+ return security_ops->inode_init_security(inode, dir, qstr, name, value,
+ len);
}
EXPORT_SYMBOL(security_inode_init_security);
*/
#include <linux/init.h>
+#include <linux/kd.h>
#include <linux/kernel.h>
#include <linux/tracehook.h>
#include <linux/errno.h>
+#include <linux/ext2_fs.h>
#include <linux/sched.h>
#include <linux/security.h>
#include <linux/xattr.h>
#include <linux/mman.h>
#include <linux/slab.h>
#include <linux/pagemap.h>
+#include <linux/proc_fs.h>
#include <linux/swap.h>
#include <linux/spinlock.h>
#include <linux/syscalls.h>
+#include <linux/dcache.h>
#include <linux/file.h>
#include <linux/fdtable.h>
#include <linux/namei.h>
#include <linux/mount.h>
-#include <linux/proc_fs.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv6.h>
#include <linux/tty.h>
#include <net/ipv6.h>
#include <linux/hugetlb.h>
#include <linux/personality.h>
-#include <linux/sysctl.h>
#include <linux/audit.h>
#include <linux/string.h>
#include <linux/selinux.h>
}
#ifdef CONFIG_PROC_FS
-static int selinux_proc_get_sid(struct proc_dir_entry *de,
+static int selinux_proc_get_sid(struct dentry *dentry,
u16 tclass,
u32 *sid)
{
- int buflen, rc;
- char *buffer, *path, *end;
+ int rc;
+ char *buffer, *path;
buffer = (char *)__get_free_page(GFP_KERNEL);
if (!buffer)
return -ENOMEM;
- buflen = PAGE_SIZE;
- end = buffer+buflen;
- *--end = '\0';
- buflen--;
- path = end-1;
- *path = '/';
- while (de && de != de->parent) {
- buflen -= de->namelen + 1;
- if (buflen < 0)
- break;
- end -= de->namelen;
- memcpy(end, de->name, de->namelen);
- *--end = '/';
- path = end;
- de = de->parent;
+ path = dentry_path_raw(dentry, buffer, PAGE_SIZE);
+ if (IS_ERR(path))
+ rc = PTR_ERR(path);
+ else {
+ /* each process gets a /proc/PID/ entry. Strip off the
+ * PID part to get a valid selinux labeling.
+ * e.g. /proc/1/net/rpc/nfs -> /net/rpc/nfs */
+ while (path[1] >= '0' && path[1] <= '9') {
+ path[1] = '/';
+ path++;
+ }
+ rc = security_genfs_sid("proc", path, tclass, sid);
}
- rc = security_genfs_sid("proc", path, tclass, sid);
free_page((unsigned long)buffer);
return rc;
}
#else
-static int selinux_proc_get_sid(struct proc_dir_entry *de,
+static int selinux_proc_get_sid(struct dentry *dentry,
u16 tclass,
u32 *sid)
{
/* Try to obtain a transition SID. */
isec->sclass = inode_mode_to_security_class(inode->i_mode);
- rc = security_transition_sid(isec->task_sid,
- sbsec->sid,
- isec->sclass,
- &sid);
+ rc = security_transition_sid(isec->task_sid, sbsec->sid,
+ isec->sclass, NULL, &sid);
if (rc)
goto out_unlock;
isec->sid = sid;
isec->sid = sbsec->sid;
if ((sbsec->flags & SE_SBPROC) && !S_ISLNK(inode->i_mode)) {
- struct proc_inode *proci = PROC_I(inode);
- if (proci->pde) {
+ if (opt_dentry) {
isec->sclass = inode_mode_to_security_class(inode->i_mode);
- rc = selinux_proc_get_sid(proci->pde,
+ rc = selinux_proc_get_sid(opt_dentry,
isec->sclass,
&sid);
if (rc)
return rc;
if (!newsid || !(sbsec->flags & SE_SBLABELSUPP)) {
- rc = security_transition_sid(sid, dsec->sid, tclass, &newsid);
+ rc = security_transition_sid(sid, dsec->sid, tclass, NULL, &newsid);
if (rc)
return rc;
}
return task_has_capability(tsk, cred, cap, audit);
}
-static int selinux_sysctl_get_sid(ctl_table *table, u16 tclass, u32 *sid)
-{
- int buflen, rc;
- char *buffer, *path, *end;
-
- rc = -ENOMEM;
- buffer = (char *)__get_free_page(GFP_KERNEL);
- if (!buffer)
- goto out;
-
- buflen = PAGE_SIZE;
- end = buffer+buflen;
- *--end = '\0';
- buflen--;
- path = end-1;
- *path = '/';
- while (table) {
- const char *name = table->procname;
- size_t namelen = strlen(name);
- buflen -= namelen + 1;
- if (buflen < 0)
- goto out_free;
- end -= namelen;
- memcpy(end, name, namelen);
- *--end = '/';
- path = end;
- table = table->parent;
- }
- buflen -= 4;
- if (buflen < 0)
- goto out_free;
- end -= 4;
- memcpy(end, "/sys", 4);
- path = end;
- rc = security_genfs_sid("proc", path, tclass, sid);
-out_free:
- free_page((unsigned long)buffer);
-out:
- return rc;
-}
-
-static int selinux_sysctl(ctl_table *table, int op)
-{
- int error = 0;
- u32 av;
- u32 tsid, sid;
- int rc;
-
- sid = current_sid();
-
- rc = selinux_sysctl_get_sid(table, (op == 0001) ?
- SECCLASS_DIR : SECCLASS_FILE, &tsid);
- if (rc) {
- /* Default to the well-defined sysctl SID. */
- tsid = SECINITSID_SYSCTL;
- }
-
- /* The op values are "defined" in sysctl.c, thereby creating
- * a bad coupling between this module and sysctl.c */
- if (op == 001) {
- error = avc_has_perm(sid, tsid,
- SECCLASS_DIR, DIR__SEARCH, NULL);
- } else {
- av = 0;
- if (op & 004)
- av |= FILE__READ;
- if (op & 002)
- av |= FILE__WRITE;
- if (av)
- error = avc_has_perm(sid, tsid,
- SECCLASS_FILE, av, NULL);
- }
-
- return error;
-}
-
static int selinux_quotactl(int cmds, int type, int id, struct super_block *sb)
{
const struct cred *cred = current_cred();
} else {
/* Check for a default transition on this program. */
rc = security_transition_sid(old_tsec->sid, isec->sid,
- SECCLASS_PROCESS, &new_tsec->sid);
+ SECCLASS_PROCESS, NULL,
+ &new_tsec->sid);
if (rc)
return rc;
}
return rc;
}
+static int selinux_sb_remount(struct super_block *sb, void *data)
+{
+ int rc, i, *flags;
+ struct security_mnt_opts opts;
+ char *secdata, **mount_options;
+ struct superblock_security_struct *sbsec = sb->s_security;
+
+ if (!(sbsec->flags & SE_SBINITIALIZED))
+ return 0;
+
+ if (!data)
+ return 0;
+
+ if (sb->s_type->fs_flags & FS_BINARY_MOUNTDATA)
+ return 0;
+
+ security_init_mnt_opts(&opts);
+ secdata = alloc_secdata();
+ if (!secdata)
+ return -ENOMEM;
+ rc = selinux_sb_copy_data(data, secdata);
+ if (rc)
+ goto out_free_secdata;
+
+ rc = selinux_parse_opts_str(secdata, &opts);
+ if (rc)
+ goto out_free_secdata;
+
+ mount_options = opts.mnt_opts;
+ flags = opts.mnt_opts_flags;
+
+ for (i = 0; i < opts.num_mnt_opts; i++) {
+ u32 sid;
+ size_t len;
+
+ if (flags[i] == SE_SBLABELSUPP)
+ continue;
+ len = strlen(mount_options[i]);
+ rc = security_context_to_sid(mount_options[i], len, &sid);
+ if (rc) {
+ printk(KERN_WARNING "SELinux: security_context_to_sid"
+ "(%s) failed for (dev %s, type %s) errno=%d\n",
+ mount_options[i], sb->s_id, sb->s_type->name, rc);
+ goto out_free_opts;
+ }
+ rc = -EINVAL;
+ switch (flags[i]) {
+ case FSCONTEXT_MNT:
+ if (bad_option(sbsec, FSCONTEXT_MNT, sbsec->sid, sid))
+ goto out_bad_option;
+ break;
+ case CONTEXT_MNT:
+ if (bad_option(sbsec, CONTEXT_MNT, sbsec->mntpoint_sid, sid))
+ goto out_bad_option;
+ break;
+ case ROOTCONTEXT_MNT: {
+ struct inode_security_struct *root_isec;
+ root_isec = sb->s_root->d_inode->i_security;
+
+ if (bad_option(sbsec, ROOTCONTEXT_MNT, root_isec->sid, sid))
+ goto out_bad_option;
+ break;
+ }
+ case DEFCONTEXT_MNT:
+ if (bad_option(sbsec, DEFCONTEXT_MNT, sbsec->def_sid, sid))
+ goto out_bad_option;
+ break;
+ default:
+ goto out_free_opts;
+ }
+ }
+
+ rc = 0;
+out_free_opts:
+ security_free_mnt_opts(&opts);
+out_free_secdata:
+ free_secdata(secdata);
+ return rc;
+out_bad_option:
+ printk(KERN_WARNING "SELinux: unable to change security options "
+ "during remount (dev %s, type=%s)\n", sb->s_id,
+ sb->s_type->name);
+ goto out_free_opts;
+}
+
static int selinux_sb_kern_mount(struct super_block *sb, int flags, void *data)
{
const struct cred *cred = current_cred();
}
static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
- char **name, void **value,
- size_t *len)
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len)
{
const struct task_security_struct *tsec = current_security();
struct inode_security_struct *dsec;
else if (!newsid || !(sbsec->flags & SE_SBLABELSUPP)) {
rc = security_transition_sid(sid, dsec->sid,
inode_mode_to_security_class(inode->i_mode),
- &newsid);
+ qstr, &newsid);
if (rc) {
printk(KERN_WARNING "%s: "
"security_transition_sid failed, rc=%d (dev=%s "
unsigned long arg)
{
const struct cred *cred = current_cred();
- u32 av = 0;
+ int error = 0;
- if (_IOC_DIR(cmd) & _IOC_WRITE)
- av |= FILE__WRITE;
- if (_IOC_DIR(cmd) & _IOC_READ)
- av |= FILE__READ;
- if (!av)
- av = FILE__IOCTL;
+ switch (cmd) {
+ case FIONREAD:
+ /* fall through */
+ case FIBMAP:
+ /* fall through */
+ case FIGETBSZ:
+ /* fall through */
+ case EXT2_IOC_GETFLAGS:
+ /* fall through */
+ case EXT2_IOC_GETVERSION:
+ error = file_has_perm(cred, file, FILE__GETATTR);
+ break;
+
+ case EXT2_IOC_SETFLAGS:
+ /* fall through */
+ case EXT2_IOC_SETVERSION:
+ error = file_has_perm(cred, file, FILE__SETATTR);
+ break;
+
+ /* sys_ioctl() checks */
+ case FIONBIO:
+ /* fall through */
+ case FIOASYNC:
+ error = file_has_perm(cred, file, 0);
+ break;
- return file_has_perm(cred, file, av);
+ case KDSKBENT:
+ case KDSKBSENT:
+ error = task_has_capability(current, cred, CAP_SYS_TTY_CONFIG,
+ SECURITY_CAP_AUDIT);
+ break;
+
+ /* default case assumes that the command will go
+ * to the file's ioctl() function.
+ */
+ default:
+ error = file_has_perm(cred, file, FILE__IOCTL);
+ }
+ return error;
}
static int default_noexec;
/* socket security operations */
-static u32 socket_sockcreate_sid(const struct task_security_struct *tsec)
+static int socket_sockcreate_sid(const struct task_security_struct *tsec,
+ u16 secclass, u32 *socksid)
{
- return tsec->sockcreate_sid ? : tsec->sid;
+ if (tsec->sockcreate_sid > SECSID_NULL) {
+ *socksid = tsec->sockcreate_sid;
+ return 0;
+ }
+
+ return security_transition_sid(tsec->sid, tsec->sid, secclass, NULL,
+ socksid);
}
static int sock_has_perm(struct task_struct *task, struct sock *sk, u32 perms)
const struct task_security_struct *tsec = current_security();
u32 newsid;
u16 secclass;
+ int rc;
if (kern)
return 0;
- newsid = socket_sockcreate_sid(tsec);
secclass = socket_type_to_security_class(family, type, protocol);
+ rc = socket_sockcreate_sid(tsec, secclass, &newsid);
+ if (rc)
+ return rc;
+
return avc_has_perm(tsec->sid, newsid, secclass, SOCKET__CREATE, NULL);
}
struct sk_security_struct *sksec;
int err = 0;
+ isec->sclass = socket_type_to_security_class(family, type, protocol);
+
if (kern)
isec->sid = SECINITSID_KERNEL;
- else
- isec->sid = socket_sockcreate_sid(tsec);
+ else {
+ err = socket_sockcreate_sid(tsec, isec->sclass, &(isec->sid));
+ if (err)
+ return err;
+ }
- isec->sclass = socket_type_to_security_class(family, type, protocol);
isec->initialized = 1;
if (sock->sk) {
{
int err = 0;
struct sk_security_struct *sksec = sk->sk_security;
- u32 peer_sid;
u32 sk_sid = sksec->sid;
struct common_audit_data ad;
char *addrp;
return err;
}
- if (selinux_policycap_netpeer) {
- err = selinux_skb_peerlbl_sid(skb, family, &peer_sid);
- if (err)
- return err;
- err = avc_has_perm(sk_sid, peer_sid,
- SECCLASS_PEER, PEER__RECV, &ad);
- if (err)
- selinux_netlbl_err(skb, err, 0);
- } else {
- err = selinux_netlbl_sock_rcv_skb(sksec, skb, family, &ad);
- if (err)
- return err;
- err = selinux_xfrm_sock_rcv_skb(sksec->sid, skb, &ad);
- }
+ err = selinux_netlbl_sock_rcv_skb(sksec, skb, family, &ad);
+ if (err)
+ return err;
+ err = selinux_xfrm_sock_rcv_skb(sksec->sid, skb, &ad);
return err;
}
SECCLASS_PACKET, PACKET__SEND, &ad))
return NF_DROP_ERR(-ECONNREFUSED);
- if (selinux_policycap_netpeer)
- if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
- return NF_DROP_ERR(-ECONNREFUSED);
+ if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
+ return NF_DROP_ERR(-ECONNREFUSED);
return NF_ACCEPT;
}
* from the sending socket, otherwise use the kernel's sid */
sk = skb->sk;
if (sk == NULL) {
- switch (family) {
- case PF_INET:
- if (IPCB(skb)->flags & IPSKB_FORWARDED)
- secmark_perm = PACKET__FORWARD_OUT;
- else
- secmark_perm = PACKET__SEND;
- break;
- case PF_INET6:
- if (IP6CB(skb)->flags & IP6SKB_FORWARDED)
- secmark_perm = PACKET__FORWARD_OUT;
- else
- secmark_perm = PACKET__SEND;
- break;
- default:
- return NF_DROP_ERR(-ECONNREFUSED);
- }
- if (secmark_perm == PACKET__FORWARD_OUT) {
+ if (skb->skb_iif) {
+ secmark_perm = PACKET__FORWARD_OUT;
if (selinux_skb_peerlbl_sid(skb, family, &peer_sid))
return NF_DROP;
- } else
+ } else {
+ secmark_perm = PACKET__SEND;
peer_sid = SECINITSID_KERNEL;
+ }
} else {
struct sk_security_struct *sksec = sk->sk_security;
peer_sid = sksec->sid;
* message queue this message will be stored in
*/
rc = security_transition_sid(sid, isec->sid, SECCLASS_MSG,
- &msec->sid);
+ NULL, &msec->sid);
if (rc)
return rc;
}
.ptrace_traceme = selinux_ptrace_traceme,
.capget = selinux_capget,
.capset = selinux_capset,
- .sysctl = selinux_sysctl,
.capable = selinux_capable,
.quotactl = selinux_quotactl,
.quota_on = selinux_quota_on,
.sb_alloc_security = selinux_sb_alloc_security,
.sb_free_security = selinux_sb_free_security,
.sb_copy_data = selinux_sb_copy_data,
+ .sb_remount = selinux_sb_remount,
.sb_kern_mount = selinux_sb_kern_mount,
.sb_show_options = selinux_sb_show_options,
.sb_statfs = selinux_sb_statfs,
#define COMMON_IPC_PERMS "create", "destroy", "getattr", "setattr", "read", \
"write", "associate", "unix_read", "unix_write"
+/*
+ * Note: The name for any socket class should be suffixed by "socket",
+ * and doesn't contain more than one substr of "socket".
+ */
struct security_class_mapping secclass_map[] = {
{ "security",
{ "compute_av", "compute_create", "compute_member",
{ "appletalk_socket",
{ COMMON_SOCK_PERMS, NULL } },
{ "packet",
- { "send", "recv", "relabelto", "flow_in", "flow_out",
- "forward_in", "forward_out", NULL } },
+ { "send", "recv", "relabelto", "forward_in", "forward_out", NULL } },
{ "key",
{ "view", "read", "write", "search", "link", "setattr", "create",
NULL } },
#ifndef _SELINUX_SECURITY_H_
#define _SELINUX_SECURITY_H_
+#include <linux/dcache.h>
#include <linux/magic.h>
#include <linux/types.h>
#include "flask.h"
#define POLICYDB_VERSION_POLCAP 22
#define POLICYDB_VERSION_PERMISSIVE 23
#define POLICYDB_VERSION_BOUNDARY 24
+#define POLICYDB_VERSION_FILENAME_TRANS 25
/* 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_BOUNDARY
+#define POLICYDB_VERSION_MAX POLICYDB_VERSION_FILENAME_TRANS
#endif
/* Mask for just the mount related flags */
void security_compute_av_user(u32 ssid, u32 tsid,
u16 tclass, struct av_decision *avd);
-int security_transition_sid(u32 ssid, u32 tsid,
- u16 tclass, u32 *out_sid);
+int security_transition_sid(u32 ssid, u32 tsid, u16 tclass,
+ const struct qstr *qstr, u32 *out_sid);
int security_transition_sid_user(u32 ssid, u32 tsid,
u16 tclass, u32 *out_sid);
*
* Copyright (C) 2003 Tresys Technology, LLC
* 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
+ * it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2.
*
* Updated: Yuichi Nakamura <ynakam@hitachisoft.jp>
u16 source_type; /* source type */
u16 target_type; /* target type */
u16 target_class; /* target object class */
-#define AVTAB_ALLOWED 1
-#define AVTAB_AUDITALLOW 2
-#define AVTAB_AUDITDENY 4
-#define AVTAB_AV (AVTAB_ALLOWED | AVTAB_AUDITALLOW | AVTAB_AUDITDENY)
-#define AVTAB_TRANSITION 16
-#define AVTAB_MEMBER 32
-#define AVTAB_CHANGE 64
-#define AVTAB_TYPE (AVTAB_TRANSITION | AVTAB_MEMBER | AVTAB_CHANGE)
-#define AVTAB_ENABLED_OLD 0x80000000 /* reserved for used in cond_avtab */
-#define AVTAB_ENABLED 0x8000 /* reserved for used in cond_avtab */
+#define AVTAB_ALLOWED 0x0001
+#define AVTAB_AUDITALLOW 0x0002
+#define AVTAB_AUDITDENY 0x0004
+#define AVTAB_AV (AVTAB_ALLOWED | AVTAB_AUDITALLOW | AVTAB_AUDITDENY)
+#define AVTAB_TRANSITION 0x0010
+#define AVTAB_MEMBER 0x0020
+#define AVTAB_CHANGE 0x0040
+#define AVTAB_TYPE (AVTAB_TRANSITION | AVTAB_MEMBER | AVTAB_CHANGE)
+#define AVTAB_ENABLED_OLD 0x80000000 /* reserved for used in cond_avtab */
+#define AVTAB_ENABLED 0x8000 /* reserved for used in cond_avtab */
u16 specified; /* what field is specified */
};
struct context *tcontext,
u16 tclass,
u32 specified,
- struct context *newcontext)
+ struct context *newcontext,
+ bool sock)
{
struct range_trans rtr;
struct mls_range *r;
return mls_range_set(newcontext, r);
/* Fallthrough */
case AVTAB_CHANGE:
- if (tclass == policydb.process_class)
+ if ((tclass == policydb.process_class) || (sock == true))
/* Use the process MLS attributes. */
return mls_context_cpy(newcontext, scontext);
else
struct context *tcontext,
u16 tclass,
u32 specified,
- struct context *newcontext);
+ struct context *newcontext,
+ bool sock);
int mls_setup_user_range(struct context *fromcon, struct user_datum *user,
struct context *usercon);
.sym_num = SYM_NUM,
.ocon_num = OCON_NUM,
},
+ {
+ .version = POLICYDB_VERSION_FILENAME_TRANS,
+ .sym_num = SYM_NUM,
+ .ocon_num = OCON_NUM,
+ },
};
static struct policydb_compat_info *policydb_lookup_compat(int version)
int i;
struct role_allow *ra, *lra = NULL;
struct role_trans *tr, *ltr = NULL;
+ struct filename_trans *ft, *nft;
for (i = 0; i < SYM_NUM; i++) {
cond_resched();
}
flex_array_free(p->type_attr_map_array);
}
+
+ ft = p->filename_trans;
+ while (ft) {
+ nft = ft->next;
+ kfree(ft->name);
+ kfree(ft);
+ ft = nft;
+ }
+
ebitmap_destroy(&p->policycaps);
ebitmap_destroy(&p->permissive_map);
return rc;
}
+static int filename_trans_read(struct policydb *p, void *fp)
+{
+ struct filename_trans *ft, *last;
+ u32 nel, len;
+ char *name;
+ __le32 buf[4];
+ int rc, i;
+
+ if (p->policyvers < POLICYDB_VERSION_FILENAME_TRANS)
+ return 0;
+
+ rc = next_entry(buf, fp, sizeof(u32));
+ if (rc)
+ goto out;
+ nel = le32_to_cpu(buf[0]);
+
+ printk(KERN_ERR "%s: nel=%d\n", __func__, nel);
+
+ last = p->filename_trans;
+ while (last && last->next)
+ last = last->next;
+
+ for (i = 0; i < nel; i++) {
+ rc = -ENOMEM;
+ ft = kzalloc(sizeof(*ft), GFP_KERNEL);
+ if (!ft)
+ goto out;
+
+ /* add it to the tail of the list */
+ if (!last)
+ p->filename_trans = ft;
+ else
+ last->next = ft;
+ last = ft;
+
+ /* length of the path component string */
+ rc = next_entry(buf, fp, sizeof(u32));
+ if (rc)
+ goto out;
+ len = le32_to_cpu(buf[0]);
+
+ rc = -ENOMEM;
+ name = kmalloc(len + 1, GFP_KERNEL);
+ if (!name)
+ goto out;
+
+ ft->name = name;
+
+ /* path component string */
+ rc = next_entry(name, fp, len);
+ if (rc)
+ goto out;
+ name[len] = 0;
+
+ printk(KERN_ERR "%s: ft=%p ft->name=%p ft->name=%s\n", __func__, ft, ft->name, ft->name);
+
+ rc = next_entry(buf, fp, sizeof(u32) * 4);
+ if (rc)
+ goto out;
+
+ ft->stype = le32_to_cpu(buf[0]);
+ ft->ttype = le32_to_cpu(buf[1]);
+ ft->tclass = le32_to_cpu(buf[2]);
+ ft->otype = le32_to_cpu(buf[3]);
+ }
+ rc = 0;
+out:
+ return rc;
+}
+
static int genfs_read(struct policydb *p, void *fp)
{
int i, j, rc;
lra = ra;
}
+ rc = filename_trans_read(p, fp);
+ if (rc)
+ goto bad;
+
rc = policydb_index(p);
if (rc)
goto bad;
return 0;
}
+static int filename_trans_write(struct policydb *p, void *fp)
+{
+ struct filename_trans *ft;
+ u32 len, nel = 0;
+ __le32 buf[4];
+ int rc;
+
+ for (ft = p->filename_trans; ft; ft = ft->next)
+ nel++;
+
+ buf[0] = cpu_to_le32(nel);
+ rc = put_entry(buf, sizeof(u32), 1, fp);
+ if (rc)
+ return rc;
+
+ for (ft = p->filename_trans; ft; ft = ft->next) {
+ len = strlen(ft->name);
+ buf[0] = cpu_to_le32(len);
+ rc = put_entry(buf, sizeof(u32), 1, fp);
+ if (rc)
+ return rc;
+
+ rc = put_entry(ft->name, sizeof(char), len, fp);
+ if (rc)
+ return rc;
+
+ buf[0] = ft->stype;
+ buf[1] = ft->ttype;
+ buf[2] = ft->tclass;
+ buf[3] = ft->otype;
+
+ rc = put_entry(buf, sizeof(u32), 4, fp);
+ if (rc)
+ return rc;
+ }
+ return 0;
+}
/*
* Write the configuration data in a policy database
* structure to a policy database binary representation
if (rc)
return rc;
+ rc = filename_trans_write(p, fp);
+ if (rc)
+ return rc;
+
rc = ocontext_write(p, info, fp);
if (rc)
return rc;
struct role_trans *next;
};
+struct filename_trans {
+ struct filename_trans *next;
+ u32 stype; /* current process */
+ u32 ttype; /* parent dir context */
+ u16 tclass; /* class of new object */
+ const char *name; /* last path component */
+ u32 otype; /* expected of new object */
+};
+
struct role_allow {
u32 role; /* current role */
u32 new_role; /* new role */
/* role transitions */
struct role_trans *role_tr;
+ /* file transitions with the last path component */
+ struct filename_trans *filename_trans;
+
/* bools indexed by (value - 1) */
struct cond_bool_datum **bool_val_to_struct;
/* type enforcement conditional access vectors and transitions */
return 0;
}
-static inline int put_entry(void *buf, size_t bytes, int num, struct policy_file *fp)
+static inline int put_entry(const void *buf, size_t bytes, int num, struct policy_file *fp)
{
size_t len = bytes * num;
return tclass;
}
+/*
+ * Get kernel value for class from its policy value
+ */
+static u16 map_class(u16 pol_value)
+{
+ u16 i;
+
+ for (i = 1; i < current_mapping_size; i++) {
+ if (current_mapping[i].value == pol_value)
+ return i;
+ }
+
+ return pol_value;
+}
+
static void map_decision(u16 tclass, struct av_decision *avd,
int allow_unknown)
{
return -EACCES;
}
+static void filename_compute_type(struct policydb *p, struct context *newcontext,
+ u32 scon, u32 tcon, u16 tclass,
+ const struct qstr *qstr)
+{
+ struct filename_trans *ft;
+ for (ft = p->filename_trans; ft; ft = ft->next) {
+ if (ft->stype == scon &&
+ ft->ttype == tcon &&
+ ft->tclass == tclass &&
+ !strcmp(ft->name, qstr->name)) {
+ newcontext->type = ft->otype;
+ return;
+ }
+ }
+}
+
static int security_compute_sid(u32 ssid,
u32 tsid,
u16 orig_tclass,
u32 specified,
+ const struct qstr *qstr,
u32 *out_sid,
bool kern)
{
struct avtab_node *node;
u16 tclass;
int rc = 0;
+ bool sock;
if (!ss_initialized) {
switch (orig_tclass) {
read_lock(&policy_rwlock);
- if (kern)
+ if (kern) {
tclass = unmap_class(orig_tclass);
- else
+ sock = security_is_socket_class(orig_tclass);
+ } else {
tclass = orig_tclass;
+ sock = security_is_socket_class(map_class(tclass));
+ }
scontext = sidtab_search(&sidtab, ssid);
if (!scontext) {
}
/* Set the role and type to default values. */
- if (tclass == policydb.process_class) {
+ if ((tclass == policydb.process_class) || (sock == true)) {
/* Use the current role and type of process. */
newcontext.role = scontext->role;
newcontext.type = scontext->type;
newcontext.type = avdatum->data;
}
+ /* if we have a qstr this is a file trans check so check those rules */
+ if (qstr)
+ filename_compute_type(&policydb, &newcontext, scontext->type,
+ tcontext->type, tclass, qstr);
+
/* Check for class-specific changes. */
if (tclass == policydb.process_class) {
if (specified & AVTAB_TRANSITION) {
/* Set the MLS attributes.
This is done last because it may allocate memory. */
- rc = mls_compute_sid(scontext, tcontext, tclass, specified, &newcontext);
+ rc = mls_compute_sid(scontext, tcontext, tclass, specified,
+ &newcontext, sock);
if (rc)
goto out_unlock;
* if insufficient memory is available, or %0 if the new SID was
* computed successfully.
*/
-int security_transition_sid(u32 ssid,
- u32 tsid,
- u16 tclass,
- u32 *out_sid)
+int security_transition_sid(u32 ssid, u32 tsid, u16 tclass,
+ const struct qstr *qstr, u32 *out_sid)
{
return security_compute_sid(ssid, tsid, tclass, AVTAB_TRANSITION,
- out_sid, true);
+ qstr, out_sid, true);
}
-int security_transition_sid_user(u32 ssid,
- u32 tsid,
- u16 tclass,
- u32 *out_sid)
+int security_transition_sid_user(u32 ssid, u32 tsid, u16 tclass, u32 *out_sid)
{
return security_compute_sid(ssid, tsid, tclass, AVTAB_TRANSITION,
- out_sid, false);
+ NULL, out_sid, false);
}
/**
u16 tclass,
u32 *out_sid)
{
- return security_compute_sid(ssid, tsid, tclass, AVTAB_MEMBER, out_sid,
- false);
+ return security_compute_sid(ssid, tsid, tclass, AVTAB_MEMBER, NULL,
+ out_sid, false);
}
/**
u16 tclass,
u32 *out_sid)
{
- return security_compute_sid(ssid, tsid, tclass, AVTAB_CHANGE, out_sid,
- false);
+ return security_compute_sid(ssid, tsid, tclass, AVTAB_CHANGE, NULL,
+ out_sid, false);
}
/* Clone the SID into the new SID table. */
if (!uctx)
goto not_from_user;
- if (uctx->ctx_doi != XFRM_SC_ALG_SELINUX)
+ if (uctx->ctx_alg != XFRM_SC_ALG_SELINUX)
return -EINVAL;
str_len = uctx->ctx_len;
#include <net/cipso_ipv4.h>
#include <linux/audit.h>
#include <linux/magic.h>
+#include <linux/dcache.h>
#include "smack.h"
#define task_security(task) (task_cred_xxx((task), security))
* smack_inode_init_security - copy out the smack from an inode
* @inode: the inode
* @dir: unused
+ * @qstr: unused
* @name: where to put the attribute name
* @value: where to put the attribute value
* @len: where to put the length of the attribute
* Returns 0 if it all works out, -ENOMEM if there's no memory
*/
static int smack_inode_init_security(struct inode *inode, struct inode *dir,
- char **name, void **value, size_t *len)
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len)
{
char *isp = smk_of_inode(inode);
char *dsp = smk_of_inode(dir);
projects / linux-2.6-block.git / commitdiff