#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/security.h>
+#include <linux/integrity.h>
#include <linux/ima.h>
+#include <linux/evm.h>
+#include <linux/fsnotify.h>
+#include <net/flow.h>
+
+#define MAX_LSM_EVM_XATTR 2
/* Boot-time LSM user choice */
static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
CONFIG_DEFAULT_SECURITY;
-/* things that live in capability.c */
-extern void __init security_fixup_ops(struct security_operations *ops);
-
static struct security_operations *security_ops;
static struct security_operations default_security_ops = {
.name = "default",
effective, inheritable, permitted);
}
-int security_capable(int cap)
+int security_capable(const struct cred *cred, struct user_namespace *ns,
+ int cap)
{
- return security_ops->capable(current, current_cred(), cap,
- SECURITY_CAP_AUDIT);
-}
-
-int security_real_capable(struct task_struct *tsk, int cap)
-{
- const struct cred *cred;
- int ret;
-
- cred = get_task_cred(tsk);
- ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_AUDIT);
- put_cred(cred);
- return ret;
+ return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT);
}
-int security_real_capable_noaudit(struct task_struct *tsk, int cap)
+int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
+ int cap)
{
- const struct cred *cred;
- int ret;
-
- cred = get_task_cred(tsk);
- ret = security_ops->capable(tsk, cred, cap, SECURITY_CAP_NOAUDIT);
- put_cred(cred);
- return ret;
+ return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
}
int security_quotactl(int cmds, int type, int id, struct super_block *sb)
return security_ops->syslog(type);
}
-int security_settime(struct timespec *ts, struct timezone *tz)
+int security_settime(const struct timespec *ts, const struct timezone *tz)
{
return security_ops->settime(ts, tz);
}
-int security_vm_enough_memory(long pages)
-{
- WARN_ON(current->mm == NULL);
- return security_ops->vm_enough_memory(current->mm, pages);
-}
-
int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
{
- WARN_ON(mm == NULL);
return security_ops->vm_enough_memory(mm, pages);
}
-int security_vm_enough_memory_kern(long pages)
-{
- /* If current->mm is a kernel thread then we will pass NULL,
- for this specific case that is fine */
- return security_ops->vm_enough_memory(current->mm, pages);
-}
-
int security_bprm_set_creds(struct linux_binprm *bprm)
{
return security_ops->bprm_set_creds(bprm);
void security_inode_free(struct inode *inode)
{
- ima_inode_free(inode);
+ integrity_inode_free(inode);
security_ops->inode_free_security(inode);
}
int security_inode_init_security(struct inode *inode, struct inode *dir,
- const struct qstr *qstr, char **name,
- void **value, size_t *len)
+ const struct qstr *qstr,
+ const initxattrs initxattrs, void *fs_data)
+{
+ struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
+ struct xattr *lsm_xattr, *evm_xattr, *xattr;
+ int ret;
+
+ if (unlikely(IS_PRIVATE(inode)))
+ return 0;
+
+ memset(new_xattrs, 0, sizeof new_xattrs);
+ if (!initxattrs)
+ return security_ops->inode_init_security(inode, dir, qstr,
+ NULL, NULL, NULL);
+ lsm_xattr = new_xattrs;
+ ret = security_ops->inode_init_security(inode, dir, qstr,
+ &lsm_xattr->name,
+ &lsm_xattr->value,
+ &lsm_xattr->value_len);
+ if (ret)
+ goto out;
+
+ evm_xattr = lsm_xattr + 1;
+ ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
+ if (ret)
+ goto out;
+ ret = initxattrs(inode, new_xattrs, fs_data);
+out:
+ for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
+ kfree(xattr->name);
+ kfree(xattr->value);
+ }
+ return (ret == -EOPNOTSUPP) ? 0 : ret;
+}
+EXPORT_SYMBOL(security_inode_init_security);
+
+int security_old_inode_init_security(struct inode *inode, struct inode *dir,
+ 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, qstr, name, value,
len);
}
-EXPORT_SYMBOL(security_inode_init_security);
+EXPORT_SYMBOL(security_old_inode_init_security);
#ifdef CONFIG_SECURITY_PATH
-int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
+int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
unsigned int dev)
{
if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
}
EXPORT_SYMBOL(security_path_mknod);
-int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
+int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
{
if (unlikely(IS_PRIVATE(dir->dentry->d_inode)))
return 0;
return security_ops->path_truncate(path);
}
-int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
- mode_t mode)
+int security_path_chmod(struct path *path, umode_t mode)
{
- if (unlikely(IS_PRIVATE(dentry->d_inode)))
+ if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
return 0;
- return security_ops->path_chmod(dentry, mnt, mode);
+ return security_ops->path_chmod(path, mode);
}
int security_path_chown(struct path *path, uid_t uid, gid_t gid)
}
#endif
-int security_inode_create(struct inode *dir, struct dentry *dentry, int mode)
+int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
{
if (unlikely(IS_PRIVATE(dir)))
return 0;
return security_ops->inode_symlink(dir, dentry, old_name);
}
-int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
if (unlikely(IS_PRIVATE(dir)))
return 0;
return security_ops->inode_rmdir(dir, dentry);
}
-int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
{
if (unlikely(IS_PRIVATE(dir)))
return 0;
return security_ops->inode_permission(inode, mask);
}
-int security_inode_exec_permission(struct inode *inode, unsigned int flags)
-{
- if (unlikely(IS_PRIVATE(inode)))
- return 0;
- if (flags)
- return -ECHILD;
- return security_ops->inode_permission(inode, MAY_EXEC);
-}
-
int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
{
+ int ret;
+
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return 0;
- return security_ops->inode_setattr(dentry, attr);
+ ret = security_ops->inode_setattr(dentry, attr);
+ if (ret)
+ return ret;
+ return evm_inode_setattr(dentry, attr);
}
EXPORT_SYMBOL_GPL(security_inode_setattr);
int security_inode_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
+ int ret;
+
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return 0;
- return security_ops->inode_setxattr(dentry, name, value, size, flags);
+ ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
+ if (ret)
+ return ret;
+ return evm_inode_setxattr(dentry, name, value, size);
}
void security_inode_post_setxattr(struct dentry *dentry, const char *name,
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return;
security_ops->inode_post_setxattr(dentry, name, value, size, flags);
+ evm_inode_post_setxattr(dentry, name, value, size);
}
int security_inode_getxattr(struct dentry *dentry, const char *name)
int security_inode_removexattr(struct dentry *dentry, const char *name)
{
+ int ret;
+
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return 0;
- return security_ops->inode_removexattr(dentry, name);
+ ret = security_ops->inode_removexattr(dentry, name);
+ if (ret)
+ return ret;
+ return evm_inode_removexattr(dentry, name);
}
int security_inode_need_killpriv(struct dentry *dentry)
return security_ops->task_create(clone_flags);
}
+void security_task_free(struct task_struct *task)
+{
+ security_ops->task_free(task);
+}
+
int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
{
return security_ops->cred_alloc_blank(cred, gfp);
return security_ops->netlink_send(sk, skb);
}
-int security_netlink_recv(struct sk_buff *skb, int cap)
-{
- return security_ops->netlink_recv(skb, cap);
-}
-EXPORT_SYMBOL(security_netlink_recv);
-
int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
{
return security_ops->secid_to_secctx(secid, secdata, seclen);
{
security_ops->sk_clone_security(sk, newsk);
}
+EXPORT_SYMBOL(security_sk_clone);
void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
{
- security_ops->sk_getsecid(sk, &fl->secid);
+ security_ops->sk_getsecid(sk, &fl->flowi_secid);
}
EXPORT_SYMBOL(security_sk_classify_flow);
}
int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
- struct xfrm_policy *xp, struct flowi *fl)
+ struct xfrm_policy *xp,
+ const struct flowi *fl)
{
return security_ops->xfrm_state_pol_flow_match(x, xp, fl);
}
void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
{
- int rc = security_ops->xfrm_decode_session(skb, &fl->secid, 0);
+ int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0);
BUG_ON(rc);
}
Code Review / linux-2.6.git / blobdiff