#undef DEBUG
+#include <linux/capability.h>
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
static int dummy_capable (struct task_struct *tsk, int cap)
{
- if (cap_is_fs_cap (cap) ? tsk->fsuid == 0 : tsk->euid == 0)
- /* capability granted */
+ if (cap_raised (tsk->cap_effective, cap))
return 0;
-
- /* capability denied */
return -EPERM;
}
return 0;
}
-static int dummy_quota_on (struct file *f)
+static int dummy_quota_on (struct dentry *dentry)
{
return 0;
}
return 0;
}
-/*
- * Check that a process has enough memory to allocate a new virtual
- * mapping. 0 means there is enough memory for the allocation to
- * succeed and -ENOMEM implies there is not.
- *
- * We currently support three overcommit policies, which are set via the
- * vm.overcommit_memory sysctl. See Documentation/vm/overcommit-accounting
- */
-static int dummy_vm_enough_memory(long pages)
+static int dummy_settime(struct timespec *ts, struct timezone *tz)
{
- unsigned long free, allowed;
-
- vm_acct_memory(pages);
-
- /*
- * Sometimes we want to use more memory than we have
- */
- if (sysctl_overcommit_memory == 1)
- return 0;
-
- if (sysctl_overcommit_memory == 0) {
- free = get_page_cache_size();
- free += nr_free_pages();
- free += nr_swap_pages;
-
- /*
- * Any slabs which are created with the
- * SLAB_RECLAIM_ACCOUNT flag claim to have contents
- * which are reclaimable, under pressure. The dentry
- * cache and most inode caches should fall into this
- */
- free += atomic_read(&slab_reclaim_pages);
-
- /*
- * Leave the last 3% for root
- */
- if (current->euid)
- free -= free / 32;
-
- if (free > pages)
- return 0;
- vm_unacct_memory(pages);
- return -ENOMEM;
- }
-
- allowed = (totalram_pages - hugetlb_total_pages())
- * sysctl_overcommit_ratio / 100;
- allowed += total_swap_pages;
-
- if (atomic_read(&vm_committed_space) < allowed)
- return 0;
+ if (!capable(CAP_SYS_TIME))
+ return -EPERM;
+ return 0;
+}
- vm_unacct_memory(pages);
+static int dummy_vm_enough_memory(long pages)
+{
+ int cap_sys_admin = 0;
- return -ENOMEM;
+ if (dummy_capable(current, CAP_SYS_ADMIN) == 0)
+ cap_sys_admin = 1;
+ return __vm_enough_memory(pages, cap_sys_admin);
}
static int dummy_bprm_alloc_security (struct linux_binprm *bprm)
static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe)
{
if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) {
- current->mm->dumpable = 0;
+ current->mm->dumpable = suid_dumpable;
if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) {
bprm->e_uid = current->uid;
current->suid = current->euid = current->fsuid = bprm->e_uid;
current->sgid = current->egid = current->fsgid = bprm->e_gid;
+
+ dummy_capget(current, ¤t->cap_effective, ¤t->cap_inheritable, ¤t->cap_permitted);
+}
+
+static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm)
+{
+ return;
}
static int dummy_bprm_set_security (struct linux_binprm *bprm)
return;
}
-static int dummy_inode_create (struct inode *inode, struct dentry *dentry,
- int mask)
+static int dummy_inode_init_security (struct inode *inode, struct inode *dir,
+ char **name, void **value, size_t *len)
{
- return 0;
+ return -EOPNOTSUPP;
}
-static void dummy_inode_post_create (struct inode *inode, struct dentry *dentry,
- int mask)
+static int dummy_inode_create (struct inode *inode, struct dentry *dentry,
+ int mask)
{
- return;
+ return 0;
}
static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode,
return 0;
}
-static void dummy_inode_post_link (struct dentry *old_dentry,
- struct inode *inode,
- struct dentry *new_dentry)
-{
- return;
-}
-
static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry)
{
return 0;
return 0;
}
-static void dummy_inode_post_symlink (struct inode *inode,
- struct dentry *dentry, const char *name)
-{
- return;
-}
-
static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry,
int mask)
{
return 0;
}
-static void dummy_inode_post_mkdir (struct inode *inode, struct dentry *dentry,
- int mask)
-{
- return;
-}
-
static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry)
{
return 0;
return 0;
}
-static void dummy_inode_post_mknod (struct inode *inode, struct dentry *dentry,
- int mode, dev_t dev)
-{
- return;
-}
-
static int dummy_inode_rename (struct inode *old_inode,
struct dentry *old_dentry,
struct inode *new_inode,
return 0;
}
-static void dummy_inode_post_rename (struct inode *old_inode,
- struct dentry *old_dentry,
- struct inode *new_inode,
- struct dentry *new_dentry)
-{
- return;
-}
-
static int dummy_inode_readlink (struct dentry *dentry)
{
return 0;
return 0;
}
-static int dummy_inode_getsecurity(struct dentry *dentry, const char *name, void *buffer, size_t size)
+static int dummy_inode_getsecurity(const struct inode *inode, const char *name, void *buffer, size_t size, int err)
{
return -EOPNOTSUPP;
}
-static int dummy_inode_setsecurity(struct dentry *dentry, const char *name, const void *value, size_t size, int flags)
+static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
{
return -EOPNOTSUPP;
}
-static int dummy_inode_listsecurity(struct dentry *dentry, char *buffer)
+static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
{
return 0;
}
+static const char *dummy_inode_xattr_getsuffix(void)
+{
+ return NULL;
+}
+
static int dummy_file_permission (struct file *file, int mask)
{
return 0;
return 0;
}
-static int dummy_file_mmap (struct file *file, unsigned long prot,
+static int dummy_file_mmap (struct file *file, unsigned long reqprot,
+ unsigned long prot,
unsigned long flags)
{
return 0;
}
-static int dummy_file_mprotect (struct vm_area_struct *vma, unsigned long prot)
+static int dummy_file_mprotect (struct vm_area_struct *vma,
+ unsigned long reqprot,
+ unsigned long prot)
{
return 0;
}
}
static int dummy_file_send_sigiotask (struct task_struct *tsk,
- struct fown_struct *fown, int fd,
- int reason)
+ struct fown_struct *fown, int sig)
{
return 0;
}
static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags)
{
+ dummy_capget(current, ¤t->cap_effective, ¤t->cap_inheritable, ¤t->cap_permitted);
return 0;
}
static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb)
{
- if (current->euid == 0)
- cap_raise (NETLINK_CB (skb).eff_cap, CAP_NET_ADMIN);
- else
- NETLINK_CB (skb).eff_cap = 0;
+ NETLINK_CB(skb).eff_cap = current->cap_effective;
return 0;
}
return 0;
}
-static int dummy_socket_getpeersec(struct socket *sock, char __user *optval,
- int __user *optlen, unsigned len)
+static int dummy_socket_getpeersec_stream(struct socket *sock, char __user *optval,
+ int __user *optlen, unsigned len)
{
return -ENOPROTOOPT;
}
-static inline int dummy_sk_alloc_security (struct sock *sk, int family, int priority)
+static int dummy_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata,
+ u32 *seclen)
+{
+ return -ENOPROTOOPT;
+}
+
+static inline int dummy_sk_alloc_security (struct sock *sk, int family, gfp_t priority)
{
return 0;
}
static inline void dummy_sk_free_security (struct sock *sk)
{
}
+
+static unsigned int dummy_sk_getsid(struct sock *sk, struct flowi *fl, u8 dir)
+{
+ return 0;
+}
#endif /* CONFIG_SECURITY_NETWORK */
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+static int dummy_xfrm_policy_alloc_security(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx)
+{
+ return 0;
+}
+
+static inline int dummy_xfrm_policy_clone_security(struct xfrm_policy *old, struct xfrm_policy *new)
+{
+ return 0;
+}
+
+static void dummy_xfrm_policy_free_security(struct xfrm_policy *xp)
+{
+}
+
+static int dummy_xfrm_state_alloc_security(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
+{
+ return 0;
+}
+
+static void dummy_xfrm_state_free_security(struct xfrm_state *x)
+{
+}
+
+static int dummy_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir)
+{
+ return 0;
+}
+#endif /* CONFIG_SECURITY_NETWORK_XFRM */
static int dummy_register_security (const char *name, struct security_operations *ops)
{
return -EINVAL;
return -EINVAL;
}
+#ifdef CONFIG_KEYS
+static inline int dummy_key_alloc(struct key *key)
+{
+ return 0;
+}
+
+static inline void dummy_key_free(struct key *key)
+{
+}
+
+static inline int dummy_key_permission(key_ref_t key_ref,
+ struct task_struct *context,
+ key_perm_t perm)
+{
+ return 0;
+}
+#endif /* CONFIG_KEYS */
struct security_operations dummy_security_ops;
set_to_dummy_if_null(ops, quota_on);
set_to_dummy_if_null(ops, sysctl);
set_to_dummy_if_null(ops, syslog);
+ set_to_dummy_if_null(ops, settime);
set_to_dummy_if_null(ops, vm_enough_memory);
set_to_dummy_if_null(ops, bprm_alloc_security);
set_to_dummy_if_null(ops, bprm_free_security);
set_to_dummy_if_null(ops, bprm_apply_creds);
+ set_to_dummy_if_null(ops, bprm_post_apply_creds);
set_to_dummy_if_null(ops, bprm_set_security);
set_to_dummy_if_null(ops, bprm_check_security);
set_to_dummy_if_null(ops, bprm_secureexec);
set_to_dummy_if_null(ops, sb_post_pivotroot);
set_to_dummy_if_null(ops, inode_alloc_security);
set_to_dummy_if_null(ops, inode_free_security);
+ set_to_dummy_if_null(ops, inode_init_security);
set_to_dummy_if_null(ops, inode_create);
- set_to_dummy_if_null(ops, inode_post_create);
set_to_dummy_if_null(ops, inode_link);
- set_to_dummy_if_null(ops, inode_post_link);
set_to_dummy_if_null(ops, inode_unlink);
set_to_dummy_if_null(ops, inode_symlink);
- set_to_dummy_if_null(ops, inode_post_symlink);
set_to_dummy_if_null(ops, inode_mkdir);
- set_to_dummy_if_null(ops, inode_post_mkdir);
set_to_dummy_if_null(ops, inode_rmdir);
set_to_dummy_if_null(ops, inode_mknod);
- set_to_dummy_if_null(ops, inode_post_mknod);
set_to_dummy_if_null(ops, inode_rename);
- set_to_dummy_if_null(ops, inode_post_rename);
set_to_dummy_if_null(ops, inode_readlink);
set_to_dummy_if_null(ops, inode_follow_link);
set_to_dummy_if_null(ops, inode_permission);
set_to_dummy_if_null(ops, inode_getxattr);
set_to_dummy_if_null(ops, inode_listxattr);
set_to_dummy_if_null(ops, inode_removexattr);
+ set_to_dummy_if_null(ops, inode_xattr_getsuffix);
set_to_dummy_if_null(ops, inode_getsecurity);
set_to_dummy_if_null(ops, inode_setsecurity);
set_to_dummy_if_null(ops, inode_listsecurity);
set_to_dummy_if_null(ops, socket_getsockopt);
set_to_dummy_if_null(ops, socket_shutdown);
set_to_dummy_if_null(ops, socket_sock_rcv_skb);
- set_to_dummy_if_null(ops, socket_getpeersec);
+ set_to_dummy_if_null(ops, socket_getpeersec_stream);
+ set_to_dummy_if_null(ops, socket_getpeersec_dgram);
set_to_dummy_if_null(ops, sk_alloc_security);
set_to_dummy_if_null(ops, sk_free_security);
-#endif /* CONFIG_SECURITY_NETWORK */
+ set_to_dummy_if_null(ops, sk_getsid);
+ #endif /* CONFIG_SECURITY_NETWORK */
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+ set_to_dummy_if_null(ops, xfrm_policy_alloc_security);
+ set_to_dummy_if_null(ops, xfrm_policy_clone_security);
+ set_to_dummy_if_null(ops, xfrm_policy_free_security);
+ set_to_dummy_if_null(ops, xfrm_state_alloc_security);
+ set_to_dummy_if_null(ops, xfrm_state_free_security);
+ set_to_dummy_if_null(ops, xfrm_policy_lookup);
+#endif /* CONFIG_SECURITY_NETWORK_XFRM */
+#ifdef CONFIG_KEYS
+ set_to_dummy_if_null(ops, key_alloc);
+ set_to_dummy_if_null(ops, key_free);
+ set_to_dummy_if_null(ops, key_permission);
+#endif /* CONFIG_KEYS */
+
}
git://git.onelab.eu / linux-2.6.git / blobdiff