diff options
Diffstat (limited to 'include/linux/security.h')
| -rw-r--r-- | include/linux/security.h | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index ab0e091ce5f..4e5a73cdbbe 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -86,9 +86,9 @@ extern int cap_inode_setxattr(struct dentry *dentry, const char *name, 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_mmap_addr(unsigned long addr); +extern int cap_mmap_file(struct file *file, unsigned long reqprot, + unsigned long prot, unsigned long flags); 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); @@ -586,15 +586,17 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) * simple integer value. When @arg represents a user space pointer, it * should never be used by the security module. * Return 0 if permission is granted. - * @file_mmap : + * @mmap_addr : + * Check permissions for a mmap operation at @addr. + * @addr contains virtual address that will be used for the operation. + * Return 0 if permission is granted. + * @mmap_file : * Check permissions for a mmap operation. The @file may be NULL, e.g. * if mapping anonymous memory. * @file contains the file structure for file to map (may be NULL). * @reqprot contains the protection requested by the application. * @prot contains the protection that will be applied by the kernel. * @flags contains the operational flags. - * @addr contains virtual address that will be used for the operation. - * @addr_only contains a boolean: 0 if file-backed VMA, otherwise 1. * Return 0 if permission is granted. * @file_mprotect: * Check permissions before changing memory access permissions. @@ -1481,10 +1483,10 @@ struct security_operations { void (*file_free_security) (struct file *file); int (*file_ioctl) (struct file *file, unsigned int cmd, unsigned long arg); - int (*file_mmap) (struct file *file, + int (*mmap_addr) (unsigned long addr); + int (*mmap_file) (struct file *file, unsigned long reqprot, unsigned long prot, - unsigned long flags, unsigned long addr, - unsigned long addr_only); + unsigned long flags); int (*file_mprotect) (struct vm_area_struct *vma, unsigned long reqprot, unsigned long prot); @@ -1743,9 +1745,9 @@ int security_file_permission(struct file *file, int mask); int security_file_alloc(struct file *file); void security_file_free(struct file *file); int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg); -int security_file_mmap(struct file *file, unsigned long reqprot, - unsigned long prot, unsigned long flags, - unsigned long addr, unsigned long addr_only); +int security_mmap_file(struct file *file, unsigned long prot, + unsigned long flags); +int security_mmap_addr(unsigned long addr); int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, unsigned long prot); int security_file_lock(struct file *file, unsigned int cmd); @@ -2181,13 +2183,15 @@ static inline int security_file_ioctl(struct file *file, unsigned int cmd, return 0; } -static inline int security_file_mmap(struct file *file, unsigned long reqprot, - unsigned long prot, - unsigned long flags, - unsigned long addr, - unsigned long addr_only) +static inline int security_mmap_file(struct file *file, unsigned long prot, + unsigned long flags) +{ + return 0; +} + +static inline int security_mmap_addr(unsigned long addr) { - return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only); + return cap_mmap_addr(addr); } static inline int security_file_mprotect(struct vm_area_struct *vma, |