#include <linux/resource.h>
#include <linux/sem.h>
#include <linux/shm.h>
+#include <linux/mm.h> /* PAGE_ALIGN */
#include <linux/msg.h>
#include <linux/sched.h>
#include <linux/key.h>
extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
extern int cap_inode_need_killpriv(struct dentry *dentry);
extern int cap_inode_killpriv(struct dentry *dentry);
+extern int cap_file_mmap(struct file *file, unsigned long reqprot,
+ unsigned long prot, unsigned long flags,
+ unsigned long addr, unsigned long addr_only);
extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5);
extern int cap_netlink_recv(struct sk_buff *skb, int cap);
extern unsigned long mmap_min_addr;
+extern unsigned long dac_mmap_min_addr;
/*
* Values used in the task_security_ops calls
*/
#define LSM_UNSAFE_PTRACE 2
#define LSM_UNSAFE_PTRACE_CAP 4
+/*
+ * If a hint addr is less than mmap_min_addr change hint to be as
+ * low as possible but still greater than mmap_min_addr
+ */
+static inline unsigned long round_hint_to_min(unsigned long hint)
+{
+ hint &= PAGE_MASK;
+ if (((void *)hint != NULL) &&
+ (hint < mmap_min_addr))
+ return PAGE_ALIGN(mmap_min_addr);
+ return hint;
+}
+extern int mmap_min_addr_handler(struct ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
+
#ifdef CONFIG_SECURITY
struct security_mnt_opts {
* manual page for definitions of the @clone_flags.
* @clone_flags contains the flags indicating what should be shared.
* Return 0 if permission is granted.
+ * @cred_alloc_blank:
+ * @cred points to the credentials.
+ * @gfp indicates the atomicity of any memory allocations.
+ * Only allocate sufficient memory and attach to @cred such that
+ * cred_transfer() will not get ENOMEM.
* @cred_free:
* @cred points to the credentials.
* Deallocate and clear the cred->security field in a set of credentials.
* @new points to the new credentials.
* @old points to the original credentials.
* Install a new set of credentials.
+ * @cred_transfer:
+ * @new points to the new credentials.
+ * @old points to the original credentials.
+ * Transfer data from original creds to new creds
* @kernel_act_as:
* Set the credentials for a kernel service to act as (subjective context).
* @new points to the credentials to be modified.
* @inode points to the inode to use as a reference.
* The current task must be the one that nominated @inode.
* Return 0 if successful.
+ * @kernel_module_request:
+ * Ability to trigger the kernel to automatically upcall to userspace for
+ * userspace to load a kernel module with the given name.
+ * Return 0 if successful.
* @task_setuid:
* Check permission before setting one or more of the user identity
* attributes of the current process. The @flags parameter indicates
* Sets the connection's peersid to the secmark on skb.
* @req_classify_flow:
* Sets the flow's sid to the openreq sid.
+ * @tun_dev_create:
+ * Check permissions prior to creating a new TUN device.
+ * @tun_dev_post_create:
+ * This hook allows a module to update or allocate a per-socket security
+ * structure.
+ * @sk contains the newly created sock structure.
+ * @tun_dev_attach:
+ * Check permissions prior to attaching to a persistent TUN device. This
+ * hook can also be used by the module to update any security state
+ * associated with the TUN device's sock structure.
+ * @sk contains the existing sock structure.
*
* Security hooks for XFRM operations.
*
* Return the length of the string (including terminating NUL) or -ve if
* an error.
* May also return 0 (and a NULL buffer pointer) if there is no label.
+ * @key_session_to_parent:
+ * Forcibly assign the session keyring from a process to its parent
+ * process.
+ * @cred: Pointer to process's credentials
+ * @parent_cred: Pointer to parent process's credentials
+ * @keyring: Proposed new session keyring
+ * Return 0 if permission is granted, -ve error otherwise.
*
* Security hooks affecting all System V IPC operations.
*
int (*dentry_open) (struct file *file, const struct cred *cred);
int (*task_create) (unsigned long clone_flags);
+ int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp);
void (*cred_free) (struct cred *cred);
int (*cred_prepare)(struct cred *new, const struct cred *old,
gfp_t gfp);
void (*cred_commit)(struct cred *new, const struct cred *old);
+ void (*cred_transfer)(struct cred *new, const struct cred *old);
int (*kernel_act_as)(struct cred *new, u32 secid);
int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
+ int (*kernel_module_request)(void);
int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags);
int (*task_fix_setuid) (struct cred *new, const struct cred *old,
int flags);
void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
+ int (*tun_dev_create)(void);
+ void (*tun_dev_post_create)(struct sock *sk);
+ int (*tun_dev_attach)(struct sock *sk);
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_NETWORK_XFRM
const struct cred *cred,
key_perm_t perm);
int (*key_getsecurity)(struct key *key, char **_buffer);
+ int (*key_session_to_parent)(const struct cred *cred,
+ const struct cred *parent_cred,
+ struct key *key);
#endif /* CONFIG_KEYS */
#ifdef CONFIG_AUDIT
int security_file_receive(struct file *file);
int security_dentry_open(struct file *file, const struct cred *cred);
int security_task_create(unsigned long clone_flags);
+int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
void security_cred_free(struct cred *cred);
int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
void security_commit_creds(struct cred *new, const struct cred *old);
+void security_transfer_creds(struct cred *new, const struct cred *old);
int security_kernel_act_as(struct cred *new, u32 secid);
int security_kernel_create_files_as(struct cred *new, struct inode *inode);
+int security_kernel_module_request(void);
int security_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags);
int security_task_fix_setuid(struct cred *new, const struct cred *old,
int flags);
unsigned long addr,
unsigned long addr_only)
{
- if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO))
- return -EACCES;
- return 0;
+ return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
}
static inline int security_file_mprotect(struct vm_area_struct *vma,
return 0;
}
+static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
+{
+ return 0;
+}
+
static inline void security_cred_free(struct cred *cred)
{ }
{
}
+static inline void security_transfer_creds(struct cred *new,
+ const struct cred *old)
+{
+}
+
static inline int security_kernel_act_as(struct cred *cred, u32 secid)
{
return 0;
return 0;
}
+static inline int security_kernel_module_request(void)
+{
+ return 0;
+}
+
static inline int security_task_setuid(uid_t id0, uid_t id1, uid_t id2,
int flags)
{
const struct request_sock *req);
void security_inet_conn_established(struct sock *sk,
struct sk_buff *skb);
+int security_tun_dev_create(void);
+void security_tun_dev_post_create(struct sock *sk);
+int security_tun_dev_attach(struct sock *sk);
#else /* CONFIG_SECURITY_NETWORK */
static inline int security_unix_stream_connect(struct socket *sock,
struct sk_buff *skb)
{
}
+
+static inline int security_tun_dev_create(void)
+{
+ return 0;
+}
+
+static inline void security_tun_dev_post_create(struct sock *sk)
+{
+}
+
+static inline int security_tun_dev_attach(struct sock *sk)
+{
+ return 0;
+}
#endif /* CONFIG_SECURITY_NETWORK */
#ifdef CONFIG_SECURITY_NETWORK_XFRM
int security_key_permission(key_ref_t key_ref,
const struct cred *cred, key_perm_t perm);
int security_key_getsecurity(struct key *key, char **_buffer);
+int security_key_session_to_parent(const struct cred *cred,
+ const struct cred *parent_cred,
+ struct key *key);
#else
return 0;
}
+static inline int security_key_session_to_parent(const struct cred *cred,
+ const struct cred *parent_cred,
+ struct key *key);
+
#endif
#endif /* CONFIG_KEYS */
git.openpandora.org / pandora-kernel.git / blobdiff