ocfs2: Better I/O error handling in heartbeat

[linux-2.6-omap-h63xx.git] / include / linux / security.h

diff --git a/include/linux/security.h b/include/linux/security.h
index 7cbef482e13aac4b74d66e86afa65ba1ece22d8d..aaa0a5cdbf751c857f5a5adcfbe880da478c1acf 100644 (file)
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -869,6 +869,11 @@ struct swap_info_struct;
  *     @ipcp contains the kernel IPC permission structure
  *     @flag contains the desired (requested) permission set
  *     Return 0 if permission is granted.
+ * @ipc_getsecurity:
+ *      Copy the security label associated with the ipc object into
+ *      @buffer.  @buffer may be NULL to request the size of the buffer 
+ *      required.  @size indicates the size of @buffer in bytes. Return 
+ *      number of bytes used/required on success.
  *
  * Security hooks for individual messages held in System V IPC message queues
  * @msg_msg_alloc_security:
@@ -1040,6 +1045,11 @@ struct swap_info_struct;
  *     @effective contains the effective capability set.
  *     @inheritable contains the inheritable capability set.
  *     @permitted contains the permitted capability set.
+ * @capable:
+ *     Check whether the @tsk process has the @cap capability.
+ *     @tsk contains the task_struct for the process.
+ *     @cap contains the capability <include/linux/capability.h>.
+ *     Return 0 if the capability is granted for @tsk.
  * @acct:
  *     Check permission before enabling or disabling process accounting.  If
  *     accounting is being enabled, then @file refers to the open file used to
@@ -1053,11 +1063,6 @@ struct swap_info_struct;
  *     @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.
- * @capable:
- *     Check whether the @tsk process has the @cap capability.
- *     @tsk contains the task_struct for the process.
- *     @cap contains the capability <include/linux/capability.h>.
- *     Return 0 if the capability is granted for @tsk.
  * @syslog:
  *     Check permission before accessing the kernel message ring or changing
  *     logging to the console.
@@ -1099,9 +1104,9 @@ struct security_operations {
                            kernel_cap_t * effective,
                            kernel_cap_t * inheritable,
                            kernel_cap_t * permitted);
+       int (*capable) (struct task_struct * tsk, int cap);
        int (*acct) (struct file * file);
        int (*sysctl) (struct ctl_table * table, int op);
-       int (*capable) (struct task_struct * tsk, int cap);
        int (*quotactl) (int cmds, int type, int id, struct super_block * sb);
        int (*quota_on) (struct dentry * dentry);
        int (*syslog) (int type);
@@ -1168,7 +1173,8 @@ struct security_operations {
        int (*inode_getxattr) (struct dentry *dentry, char *name);
        int (*inode_listxattr) (struct dentry *dentry);
        int (*inode_removexattr) (struct dentry *dentry, char *name);
-       int (*inode_getsecurity)(struct inode *inode, const char *name, void *buffer, size_t size, int err);
+       const char *(*inode_xattr_getsuffix) (void);
+       int (*inode_getsecurity)(const struct inode *inode, const char *name, void *buffer, size_t size, int err);
        int (*inode_setsecurity)(struct inode *inode, const char *name, const void *value, size_t size, int flags);
        int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size);
 
@@ -1217,6 +1223,7 @@ struct security_operations {
        void (*task_to_inode)(struct task_struct *p, struct inode *inode);
 
        int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag);
+       int (*ipc_getsecurity)(struct kern_ipc_perm *ipcp, void *buffer, size_t size);
 
        int (*msg_msg_alloc_security) (struct msg_msg * msg);
        void (*msg_msg_free_security) (struct msg_msg * msg);
@@ -1286,7 +1293,8 @@ struct security_operations {
        int (*socket_setsockopt) (struct socket * sock, int level, int optname);
        int (*socket_shutdown) (struct socket * sock, int how);
        int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
-       int (*socket_getpeersec) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
+       int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
+       int (*socket_getpeersec_dgram) (struct sk_buff *skb, char **secdata, u32 *seclen);
        int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
        void (*sk_free_security) (struct sock *sk);
        unsigned int (*sk_getsid) (struct sock *sk, struct flowi *fl, u8 dir);
@@ -1346,6 +1354,11 @@ static inline void security_capset_set (struct task_struct *target,
        security_ops->capset_set (target, effective, inheritable, permitted);
 }
 
+static inline int security_capable(struct task_struct *tsk, int cap)
+{
+       return security_ops->capable(tsk, cap);
+}
+
 static inline int security_acct (struct file *file)
 {
        return security_ops->acct (file);
@@ -1674,7 +1687,12 @@ static inline int security_inode_removexattr (struct dentry *dentry, char *name)
        return security_ops->inode_removexattr (dentry, name);
 }
 
-static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err)
+static inline const char *security_inode_xattr_getsuffix(void)
+{
+       return security_ops->inode_xattr_getsuffix();
+}
+
+static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void *buffer, size_t size, int err)
 {
        if (unlikely (IS_PRIVATE (inode)))
                return 0;
@@ -1869,6 +1887,11 @@ static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
        return security_ops->ipc_permission (ipcp, flag);
 }
 
+static inline int security_ipc_getsecurity(struct kern_ipc_perm *ipcp, void *buffer, size_t size)
+{
+       return security_ops->ipc_getsecurity(ipcp, buffer, size);
+}
+
 static inline int security_msg_msg_alloc (struct msg_msg * msg)
 {
        return security_ops->msg_msg_alloc_security (msg);
@@ -2049,6 +2072,11 @@ static inline void security_capset_set (struct task_struct *target,
        cap_capset_set (target, effective, inheritable, permitted);
 }
 
+static inline int security_capable(struct task_struct *tsk, int cap)
+{
+       return cap_capable(tsk, cap);
+}
+
 static inline int security_acct (struct file *file)
 {
        return 0;
@@ -2316,7 +2344,12 @@ static inline int security_inode_removexattr (struct dentry *dentry, char *name)
        return cap_inode_removexattr(dentry, name);
 }
 
-static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size, int err)
+static inline const char *security_inode_xattr_getsuffix (void)
+{
+       return NULL ;
+}
+
+static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void *buffer, size_t size, int err)
 {
        return -EOPNOTSUPP;
 }
@@ -2499,6 +2532,11 @@ static inline int security_ipc_permission (struct kern_ipc_perm *ipcp,
        return 0;
 }
 
+static inline int security_ipc_getsecurity(struct kern_ipc_perm *ipcp, void *buffer, size_t size)
+{
+       return -EOPNOTSUPP;
+}
+
 static inline int security_msg_msg_alloc (struct msg_msg * msg)
 {
        return 0;
@@ -2741,10 +2779,16 @@ static inline int security_sock_rcv_skb (struct sock * sk,
        return security_ops->socket_sock_rcv_skb (sk, skb);
 }
 
-static inline int security_socket_getpeersec(struct socket *sock, char __user *optval,
-                                            int __user *optlen, unsigned len)
+static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
+                                                   int __user *optlen, unsigned len)
+{
+       return security_ops->socket_getpeersec_stream(sock, optval, optlen, len);
+}
+
+static inline int security_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata,
+                                                  u32 *seclen)
 {
-       return security_ops->socket_getpeersec(sock, optval, optlen, len);
+       return security_ops->socket_getpeersec_dgram(skb, secdata, seclen);
 }
 
 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
@@ -2863,8 +2907,14 @@ static inline int security_sock_rcv_skb (struct sock * sk,
        return 0;
 }
 
-static inline int security_socket_getpeersec(struct socket *sock, char __user *optval,
-                                            int __user *optlen, unsigned len)
+static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
+                                                   int __user *optlen, unsigned len)
+{
+       return -ENOPROTOOPT;
+}
+
+static inline int security_socket_getpeersec_dgram(struct sk_buff *skb, char **secdata,
+                                                  u32 *seclen)
 {
        return -ENOPROTOOPT;
 }