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Diffstat (limited to 'include/linux/security.h')
| -rw-r--r-- | include/linux/security.h | 2858 |
1 files changed, 2858 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h new file mode 100644 index 00000000000..b42095a68b1 --- /dev/null +++ b/include/linux/security.h @@ -0,0 +1,2858 @@ +/* + * Linux Security plug + * + * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> + * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com> + * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> + * Copyright (C) 2001 James Morris <jmorris@intercode.com.au> + * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Due to this file being licensed under the GPL there is controversy over + * whether this permits you to write a module that #includes this file + * without placing your module under the GPL. Please consult a lawyer for + * advice before doing this. + * + */ + +#ifndef __LINUX_SECURITY_H +#define __LINUX_SECURITY_H + +#include <linux/fs.h> +#include <linux/binfmts.h> +#include <linux/signal.h> +#include <linux/resource.h> +#include <linux/sem.h> +#include <linux/shm.h> +#include <linux/msg.h> +#include <linux/sched.h> + +struct ctl_table; + +/* + * These functions are in security/capability.c and are used + * as the default capabilities functions + */ +extern int cap_capable (struct task_struct *tsk, int cap); +extern int cap_settime (struct timespec *ts, struct timezone *tz); +extern int cap_ptrace (struct task_struct *parent, struct task_struct *child); +extern int cap_capget (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); +extern int cap_capset_check (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); +extern void cap_capset_set (struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted); +extern int cap_bprm_set_security (struct linux_binprm *bprm); +extern void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe); +extern int cap_bprm_secureexec(struct linux_binprm *bprm); +extern int cap_inode_setxattr(struct dentry *dentry, char *name, void *value, size_t size, int flags); +extern int cap_inode_removexattr(struct dentry *dentry, char *name); +extern int cap_task_post_setuid (uid_t old_ruid, uid_t old_euid, uid_t old_suid, int flags); +extern void cap_task_reparent_to_init (struct task_struct *p); +extern int cap_syslog (int type); +extern int cap_vm_enough_memory (long pages); + +struct msghdr; +struct sk_buff; +struct sock; +struct sockaddr; +struct socket; + +extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb); +extern int cap_netlink_recv(struct sk_buff *skb); + +/* + * Values used in the task_security_ops calls + */ +/* setuid or setgid, id0 == uid or gid */ +#define LSM_SETID_ID 1 + +/* setreuid or setregid, id0 == real, id1 == eff */ +#define LSM_SETID_RE 2 + +/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ +#define LSM_SETID_RES 4 + +/* setfsuid or setfsgid, id0 == fsuid or fsgid */ +#define LSM_SETID_FS 8 + +/* forward declares to avoid warnings */ +struct nfsctl_arg; +struct sched_param; +struct swap_info_struct; + +/* bprm_apply_creds unsafe reasons */ +#define LSM_UNSAFE_SHARE 1 +#define LSM_UNSAFE_PTRACE 2 +#define LSM_UNSAFE_PTRACE_CAP 4 + +#ifdef CONFIG_SECURITY + +/** + * struct security_operations - main security structure + * + * Security hooks for program execution operations. + * + * @bprm_alloc_security: + * Allocate and attach a security structure to the @bprm->security field. + * The security field is initialized to NULL when the bprm structure is + * allocated. + * @bprm contains the linux_binprm structure to be modified. + * Return 0 if operation was successful. + * @bprm_free_security: + * @bprm contains the linux_binprm structure to be modified. + * Deallocate and clear the @bprm->security field. + * @bprm_apply_creds: + * Compute and set the security attributes of a process being transformed + * by an execve operation based on the old attributes (current->security) + * and the information saved in @bprm->security by the set_security hook. + * Since this hook function (and its caller) are void, this hook can not + * return an error. However, it can leave the security attributes of the + * process unchanged if an access failure occurs at this point. + * bprm_apply_creds is called under task_lock. @unsafe indicates various + * reasons why it may be unsafe to change security state. + * @bprm contains the linux_binprm structure. + * @bprm_post_apply_creds: + * Runs after bprm_apply_creds with the task_lock dropped, so that + * functions which cannot be called safely under the task_lock can + * be used. This hook is a good place to perform state changes on + * the process such as closing open file descriptors to which access + * is no longer granted if the attributes were changed. + * Note that a security module might need to save state between + * bprm_apply_creds and bprm_post_apply_creds to store the decision + * on whether the process may proceed. + * @bprm contains the linux_binprm structure. + * @bprm_set_security: + * Save security information in the bprm->security field, typically based + * on information about the bprm->file, for later use by the apply_creds + * hook. This hook may also optionally check permissions (e.g. for + * transitions between security domains). + * This hook may be called multiple times during a single execve, e.g. for + * interpreters. The hook can tell whether it has already been called by + * checking to see if @bprm->security is non-NULL. If so, then the hook + * may decide either to retain the security information saved earlier or + * to replace it. + * @bprm contains the linux_binprm structure. + * Return 0 if the hook is successful and permission is granted. + * @bprm_check_security: + * This hook mediates the point when a search for a binary handler will + * begin. It allows a check the @bprm->security value which is set in + * the preceding set_security call. The primary difference from + * set_security is that the argv list and envp list are reliably + * available in @bprm. This hook may be called multiple times + * during a single execve; and in each pass set_security is called + * first. + * @bprm contains the linux_binprm structure. + * Return 0 if the hook is successful and permission is granted. + * @bprm_secureexec: + * Return a boolean value (0 or 1) indicating whether a "secure exec" + * is required. The flag is passed in the auxiliary table + * on the initial stack to the ELF interpreter to indicate whether libc + * should enable secure mode. + * @bprm contains the linux_binprm structure. + * + * Security hooks for filesystem operations. + * + * @sb_alloc_security: + * Allocate and attach a security structure to the sb->s_security field. + * The s_security field is initialized to NULL when the structure is + * allocated. + * @sb contains the super_block structure to be modified. + * Return 0 if operation was successful. + * @sb_free_security: + * Deallocate and clear the sb->s_security field. + * @sb contains the super_block structure to be modified. + * @sb_statfs: + * Check permission before obtaining filesystem statistics for the @sb + * filesystem. + * @sb contains the super_block structure for the filesystem. + * Return 0 if permission is granted. + * @sb_mount: + * Check permission before an object specified by @dev_name is mounted on + * the mount point named by @nd. For an ordinary mount, @dev_name + * identifies a device if the file system type requires a device. For a + * remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a + * loopback/bind mount (@flags & MS_BIND), @dev_name identifies the + * pathname of the object being mounted. + * @dev_name contains the name for object being mounted. + * @nd contains the nameidata structure for mount point object. + * @type contains the filesystem type. + * @flags contains the mount flags. + * @data contains the filesystem-specific data. + * Return 0 if permission is granted. + * @sb_copy_data: + * Allow mount option data to be copied prior to parsing by the filesystem, + * so that the security module can extract security-specific mount + * options cleanly (a filesystem may modify the data e.g. with strsep()). + * This also allows the original mount data to be stripped of security- + * specific options to avoid having to make filesystems aware of them. + * @type the type of filesystem being mounted. + * @orig the original mount data copied from userspace. + * @copy copied data which will be passed to the security module. + * Returns 0 if the copy was successful. + * @sb_check_sb: + * Check permission before the device with superblock @mnt->sb is mounted + * on the mount point named by @nd. + * @mnt contains the vfsmount for device being mounted. + * @nd contains the nameidata object for the mount point. + * Return 0 if permission is granted. + * @sb_umount: + * Check permission before the @mnt file system is unmounted. + * @mnt contains the mounted file system. + * @flags contains the unmount flags, e.g. MNT_FORCE. + * Return 0 if permission is granted. + * @sb_umount_close: + * Close any files in the @mnt mounted filesystem that are held open by + * the security module. This hook is called during an umount operation + * prior to checking whether the filesystem is still busy. + * @mnt contains the mounted filesystem. + * @sb_umount_busy: + * Handle a failed umount of the @mnt mounted filesystem, e.g. re-opening + * any files that were closed by umount_close. This hook is called during + * an umount operation if the umount fails after a call to the + * umount_close hook. + * @mnt contains the mounted filesystem. + * @sb_post_remount: + * Update the security module's state when a filesystem is remounted. + * This hook is only called if the remount was successful. + * @mnt contains the mounted file system. + * @flags contains the new filesystem flags. + * @data contains the filesystem-specific data. + * @sb_post_mountroot: + * Update the security module's state when the root filesystem is mounted. + * This hook is only called if the mount was successful. + * @sb_post_addmount: + * Update the security module's state when a filesystem is mounted. + * This hook is called any time a mount is successfully grafetd to + * the tree. + * @mnt contains the mounted filesystem. + * @mountpoint_nd contains the nameidata structure for the mount point. + * @sb_pivotroot: + * Check permission before pivoting the root filesystem. + * @old_nd contains the nameidata structure for the new location of the current root (put_old). + * @new_nd contains the nameidata structure for the new root (new_root). + * Return 0 if permission is granted. + * @sb_post_pivotroot: + * Update module state after a successful pivot. + * @old_nd contains the nameidata structure for the old root. + * @new_nd contains the nameidata structure for the new root. + * + * Security hooks for inode operations. + * + * @inode_alloc_security: + * Allocate and attach a security structure to @inode->i_security. The + * i_security field is initialized to NULL when the inode structure is + * allocated. + * @inode contains the inode structure. + * Return 0 if operation was successful. + * @inode_free_security: + * @inode contains the inode structure. + * Deallocate the inode security structure and set @inode->i_security to + * NULL. + * @inode_create: + * Check permission to create a regular file. + * @dir contains inode structure of the parent of the new file. + * @dentry contains the dentry structure for the file to be created. + * @mode contains the file mode of the file to be created. + * Return 0 if permission is granted. + * @inode_post_create: + * Set the security attributes on a newly created regular file. This hook + * is called after a file has been successfully created. + * @dir contains the inode structure of the parent directory of the new file. + * @dentry contains the the dentry structure for the newly created file. + * @mode contains the file mode. + * @inode_link: + * Check permission before creating a new hard link to a file. + * @old_dentry contains the dentry structure for an existing link to the file. + * @dir contains the inode structure of the parent directory of the new link. + * @new_dentry contains the dentry structure for the new link. + * Return 0 if permission is granted. + * @inode_post_link: + * Set security attributes for a new hard link to a file. + * @old_dentry contains the dentry structure for the existing link. + * @dir contains the inode structure of the parent directory of the new file. + * @new_dentry contains the dentry structure for the new file link. + * @inode_unlink: + * Check the permission to remove a hard link to a file. + * @dir contains the inode structure of parent directory of the file. + * @dentry contains the dentry structure for file to be unlinked. + * Return 0 if permission is granted. + * @inode_symlink: + * Check the permission to create a symbolic link to a file. + * @dir contains the inode structure of parent directory of the symbolic link. + * @dentry contains the dentry structure of the symbolic link. + * @old_name contains the pathname of file. + * Return 0 if permission is granted. + * @inode_post_symlink: + * @dir contains the inode structure of the parent directory of the new link. + * @dentry contains the dentry structure of new symbolic link. + * @old_name contains the pathname of file. + * Set security attributes for a newly created symbolic link. Note that + * @dentry->d_inode may be NULL, since the filesystem might not + * instantiate the dentry (e.g. NFS). + * @inode_mkdir: + * Check permissions to create a new directory in the existing directory + * associated with inode strcture @dir. + * @dir containst the inode structure of parent of the directory to be created. + * @dentry contains the dentry structure of new directory. + * @mode contains the mode of new directory. + * Return 0 if permission is granted. + * @inode_post_mkdir: + * Set security attributes on a newly created directory. + * @dir contains the inode structure of parent of the directory to be created. + * @dentry contains the dentry structure of new directory. + * @mode contains the mode of new directory. + * @inode_rmdir: + * Check the permission to remove a directory. + * @dir contains the inode structure of parent of the directory to be removed. + * @dentry contains the dentry structure of directory to be removed. + * Return 0 if permission is granted. + * @inode_mknod: + * Check permissions when creating a special file (or a socket or a fifo + * file created via the mknod system call). Note that if mknod operation + * is being done for a regular file, then the create hook will be called + * and not this hook. + * @dir contains the inode structure of parent of the new file. + * @dentry contains the dentry structure of the new file. + * @mode contains the mode of the new file. + * @dev contains the the device number. + * Return 0 if permission is granted. + * @inode_post_mknod: + * Set security attributes on a newly created special file (or socket or + * fifo file created via the mknod system call). + * @dir contains the inode structure of parent of the new node. + * @dentry contains the dentry structure of the new node. + * @mode contains the mode of the new node. + * @dev contains the the device number. + * @inode_rename: + * Check for permission to rename a file or directory. + * @old_dir contains the inode structure for parent of the old link. + * @old_dentry contains the dentry structure of the old link. + * @new_dir contains the inode structure for parent of the new link. + * @new_dentry contains the dentry structure of the new link. + * Return 0 if permission is granted. + * @inode_post_rename: + * Set security attributes on a renamed file or directory. + * @old_dir contains the inode structure for parent of the old link. + * @old_dentry contains the dentry structure of the old link. + * @new_dir contains the inode structure for parent of the new link. + * @new_dentry contains the dentry structure of the new link. + * @inode_readlink: + * Check the permission to read the symbolic link. + * @dentry contains the dentry structure for the file link. + * Return 0 if permission is granted. + * @inode_follow_link: + * Check permission to follow a symbolic link when looking up a pathname. + * @dentry contains the dentry structure for the link. + * @nd contains the nameidata structure for the parent directory. + * Return 0 if permission is granted. + * @inode_permission: + * Check permission before accessing an inode. This hook is called by the + * existing Linux permission function, so a security module can use it to + * provide additional checking for existing Linux permission checks. + * Notice that this hook is called when a file is opened (as well as many + * other operations), whereas the file_security_ops permission hook is + * called when the actual read/write operations are performed. + * @inode contains the inode structure to check. + * @mask contains the permission mask. + * @nd contains the nameidata (may be NULL). + * Return 0 if permission is granted. + * @inode_setattr: + * Check permission before setting file attributes. Note that the kernel + * call to notify_change is performed from several locations, whenever + * file attributes change (such as when a file is truncated, chown/chmod + * operations, transferring disk quotas, etc). + * @dentry contains the dentry structure for the file. + * @attr is the iattr structure containing the new file attributes. + * Return 0 if permission is granted. + * @inode_getattr: + * Check permission before obtaining file attributes. + * @mnt is the vfsmount where the dentry was looked up + * @dentry contains the dentry structure for the file. + * Return 0 if permission is granted. + * @inode_delete: + * @inode contains the inode structure for deleted inode. + * This hook is called when a deleted inode is released (i.e. an inode + * with no hard links has its use count drop to zero). A security module + * can use this hook to release any persistent label associated with the + * inode. + * @inode_setxattr: + * Check permission before setting the extended attributes + * @value identified by @name for @dentry. + * Return 0 if permission is granted. + * @inode_post_setxattr: + * Update inode security field after successful setxattr operation. + * @value identified by @name for @dentry. + * @inode_getxattr: + * Check permission before obtaining the extended attributes + * identified by @name for @dentry. + * Return 0 if permission is granted. + * @inode_listxattr: + * Check permission before obtaining the list of extended attribute + * names for @dentry. + * Return 0 if permission is granted. + * @inode_removexattr: + * Check permission before removing the extended attribute + * identified by @name for @dentry. + * Return 0 if permission is granted. + * @inode_getsecurity: + * Copy the extended attribute representation of the security label + * associated with @name for @inode into @buffer. @buffer may be + * NULL to request the size of the buffer required. @size indicates + * the size of @buffer in bytes. Note that @name is the remainder + * of the attribute name after the security. prefix has been removed. + * Return number of bytes used/required on success. + * @inode_setsecurity: + * Set the security label associated with @name for @inode from the + * extended attribute value @value. @size indicates the size of the + * @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0. + * Note that @name is the remainder of the attribute name after the + * security. prefix has been removed. + * Return 0 on success. + * @inode_listsecurity: + * Copy the extended attribute names for the security labels + * associated with @inode into @buffer. The maximum size of @buffer + * is specified by @buffer_size. @buffer may be NULL to request + * the size of the buffer required. + * Returns number of bytes used/required on success. + * + * Security hooks for file operations + * + * @file_permission: + * Check file permissions before accessing an open file. This hook is + * called by various operations that read or write files. A security + * module can use this hook to perform additional checking on these + * operations, e.g. to revalidate permissions on use to support privilege + * bracketing or policy changes. Notice that this hook is used when the + * actual read/write operations are performed, whereas the + * inode_security_ops hook is called when a file is opened (as well as + * many other operations). + * Caveat: Although this hook can be used to revalidate permissions for + * various system call operations that read or write files, it does not + * address the revalidation of permissions for memory-mapped files. + * Security modules must handle this separately if they need such + * revalidation. + * @file contains the file structure being accessed. + * @mask contains the requested permissions. + * Return 0 if permission is granted. + * @file_alloc_security: + * Allocate and attach a security structure to the file->f_security field. + * The security field is initialized to NULL when the structure is first + * created. + * @file contains the file structure to secure. + * Return 0 if the hook is successful and permission is granted. + * @file_free_security: + * Deallocate and free any security structures stored in file->f_security. + * @file contains the file structure being modified. + * @file_ioctl: + * @file contains the file structure. + * @cmd contains the operation to perform. + * @arg contains the operational arguments. + * Check permission for an ioctl operation on @file. Note that @arg can + * sometimes represents a user space pointer; in other cases, it may be a + * 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 : + * 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. + * Return 0 if permission is granted. + * @file_mprotect: + * Check permissions before changing memory access permissions. + * @vma contains the memory region to modify. + * @reqprot contains the protection requested by the application. + * @prot contains the protection that will be applied by the kernel. + * Return 0 if permission is granted. + * @file_lock: + * Check permission before performing file locking operations. + * Note: this hook mediates both flock and fcntl style locks. + * @file contains the file structure. + * @cmd contains the posix-translated lock operation to perform + * (e.g. F_RDLCK, F_WRLCK). + * Return 0 if permission is granted. + * @file_fcntl: + * Check permission before allowing the file operation specified by @cmd + * from being performed on the file @file. Note that @arg can sometimes + * represents a user space pointer; in other cases, it may be a simple + * integer value. When @arg represents a user space pointer, it should + * never be used by the security module. + * @file contains the file structure. + * @cmd contains the operation to be performed. + * @arg contains the operational arguments. + * Return 0 if permission is granted. + * @file_set_fowner: + * Save owner security information (typically from current->security) in + * file->f_security for later use by the send_sigiotask hook. + * @file contains the file structure to update. + * Return 0 on success. + * @file_send_sigiotask: + * Check permission for the file owner @fown to send SIGIO or SIGURG to the + * process @tsk. Note that this hook is sometimes called from interrupt. + * Note that the fown_struct, @fown, is never outside the context of a + * struct file, so the file structure (and associated security information) + * can always be obtained: + * (struct file *)((long)fown - offsetof(struct file,f_owner)); + * @tsk contains the structure of task receiving signal. + * @fown contains the file owner information. + * @sig is the signal that will be sent. When 0, kernel sends SIGIO. + * Return 0 if permission is granted. + * @file_receive: + * This hook allows security modules to control the ability of a process + * to receive an open file descriptor via socket IPC. + * @file contains the file structure being received. + * Return 0 if permission is granted. + * + * Security hooks for task operations. + * + * @task_create: + * Check permission before creating a child process. See the clone(2) + * manual page for definitions of the @clone_flags. + * @clone_flags contains the flags indicating what should be shared. + * Return 0 if permission is granted. + * @task_alloc_security: + * @p contains the task_struct for child process. + * Allocate and attach a security structure to the p->security field. The + * security field is initialized to NULL when the task structure is + * allocated. + * Return 0 if operation was successful. + * @task_free_security: + * @p contains the task_struct for process. + * Deallocate and clear the p->security field. + * @task_setuid: + * Check permission before setting one or more of the user identity + * attributes of the current process. The @flags parameter indicates + * which of the set*uid system calls invoked this hook and how to + * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID + * definitions at the beginning of this file for the @flags values and + * their meanings. + * @id0 contains a uid. + * @id1 contains a uid. + * @id2 contains a uid. + * @flags contains one of the LSM_SETID_* values. + * Return 0 if permission is granted. + * @task_post_setuid: + * Update the module's state after setting one or more of the user + * identity attributes of the current process. The @flags parameter + * indicates which of the set*uid system calls invoked this hook. If + * @flags is LSM_SETID_FS, then @old_ruid is the old fs uid and the other + * parameters are not used. + * @old_ruid contains the old real uid (or fs uid if LSM_SETID_FS). + * @old_euid contains the old effective uid (or -1 if LSM_SETID_FS). + * @old_suid contains the old saved uid (or -1 if LSM_SETID_FS). + * @flags contains one of the LSM_SETID_* values. + * Return 0 on success. + * @task_setgid: + * Check permission before setting one or more of the group identity + * attributes of the current process. The @flags parameter indicates + * which of the set*gid system calls invoked this hook and how to + * interpret the @id0, @id1, and @id2 parameters. See the LSM_SETID + * definitions at the beginning of this file for the @flags values and + * their meanings. + * @id0 contains a gid. + * @id1 contains a gid. + * @id2 contains a gid. + * @flags contains one of the LSM_SETID_* values. + * Return 0 if permission is granted. + * @task_setpgid: + * Check permission before setting the process group identifier of the + * process @p to @pgid. + * @p contains the task_struct for process being modified. + * @pgid contains the new pgid. + * Return 0 if permission is granted. + * @task_getpgid: + * Check permission before getting the process group identifier of the + * process @p. + * @p contains the task_struct for the process. + * Return 0 if permission is granted. + * @task_getsid: + * Check permission before getting the session identifier of the process + * @p. + * @p contains the task_struct for the process. + * Return 0 if permission is granted. + * @task_setgroups: + * Check permission before setting the supplementary group set of the + * current process. + * @group_info contains the new group information. + * Return 0 if permission is granted. + * @task_setnice: + * Check permission before setting the nice value of @p to @nice. + * @p contains the task_struct of process. + * @nice contains the new nice value. + * Return 0 if permission is granted. + * @task_setrlimit: + * Check permission before setting the resource limits of the current + * process for @resource to @new_rlim. The old resource limit values can + * be examined by dereferencing (current->signal->rlim + resource). + * @resource contains the resource whose limit is being set. + * @new_rlim contains the new limits for @resource. + * Return 0 if permission is granted. + * @task_setscheduler: + * Check permission before setting scheduling policy and/or parameters of + * process @p based on @policy and @lp. + * @p contains the task_struct for process. + * @policy contains the scheduling policy. + * @lp contains the scheduling parameters. + * Return 0 if permission is granted. + * @task_getscheduler: + * Check permission before obtaining scheduling information for process + * @p. + * @p contains the task_struct for process. + * Return 0 if permission is granted. + * @task_kill: + * Check permission before sending signal @sig to @p. @info can be NULL, + * the constant 1, or a pointer to a siginfo structure. If @info is 1 or + * SI_FROMKERNEL(info) is true, then the signal should be viewed as coming + * from the kernel and should typically be permitted. + * SIGIO signals are handled separately by the send_sigiotask hook in + * file_security_ops. + * @p contains the task_struct for process. + * @info contains the signal information. + * @sig contains the signal value. + * Return 0 if permission is granted. + * @task_wait: + * Check permission before allowing a process to reap a child process @p + * and collect its status information. + * @p contains the task_struct for process. + * Return 0 if permission is granted. + * @task_prctl: + * Check permission before performing a process control operation on the + * current process. + * @option contains the operation. + * @arg2 contains a argument. + * @arg3 contains a argument. + * @arg4 contains a argument. + * @arg5 contains a argument. + * Return 0 if permission is granted. + * @task_reparent_to_init: + * Set the security attributes in @p->security for a kernel thread that + * is being reparented to the init task. + * @p contains the task_struct for the kernel thread. + * @task_to_inode: + * Set the security attributes for an inode based on an associated task's + * security attributes, e.g. for /proc/pid inodes. + * @p contains the task_struct for the task. + * @inode contains the inode structure for the inode. + * + * Security hooks for Netlink messaging. + * + * @netlink_send: + * Save security information for a netlink message so that permission + * checking can be performed when the message is processed. The security + * information can be saved using the eff_cap field of the + * netlink_skb_parms structure. Also may be used to provide fine + * grained control over message transmission. + * @sk associated sock of task sending the message., + * @skb contains the sk_buff structure for the netlink message. + * Return 0 if the information was successfully saved and message + * is allowed to be transmitted. + * @netlink_recv: + * Check permission before processing the received netlink message in + * @skb. + * @skb contains the sk_buff structure for the netlink message. + * Return 0 if permission is granted. + * + * Security hooks for Unix domain networking. + * + * @unix_stream_connect: + * Check permissions before establishing a Unix domain stream connection + * between @sock and @other. + * @sock contains the socket structure. + * @other contains the peer socket structure. + * Return 0 if permission is granted. + * @unix_may_send: + * Check permissions before connecting or sending datagrams from @sock to + * @other. + * @sock contains the socket structure. + * @sock contains the peer socket structure. + * Return 0 if permission is granted. + * + * The @unix_stream_connect and @unix_may_send hooks were necessary because + * Linux provides an alternative to the conventional file name space for Unix + * domain sockets. Whereas binding and connecting to sockets in the file name + * space is mediated by the typical file permissions (and caught by the mknod + * and permission hooks in inode_security_ops), binding and connecting to + * sockets in the abstract name space is completely unmediated. Sufficient + * control of Unix domain sockets in the abstract name space isn't possible + * using only the socket layer hooks, since we need to know the actual target + * socket, which is not looked up until we are inside the af_unix code. + * + * Security hooks for socket operations. + * + * @socket_create: + * Check permissions prior to creating a new socket. + * @family contains the requested protocol family. + * @type contains the requested communications type. + * @protocol contains the requested protocol. + * @kern set to 1 if a kernel socket. + * Return 0 if permission is granted. + * @socket_post_create: + * This hook allows a module to update or allocate a per-socket security + * structure. Note that the security field was not added directly to the + * socket structure, but rather, the socket security information is stored + * in the associated inode. Typically, the inode alloc_security hook will + * allocate and and attach security information to + * sock->inode->i_security. This hook may be used to update the + * sock->inode->i_security field with additional information that wasn't + * available when the inode was allocated. + * @sock contains the newly created socket structure. + * @family contains the requested protocol family. + * @type contains the requested communications type. + * @protocol contains the requested protocol. + * @kern set to 1 if a kernel socket. + * @socket_bind: + * Check permission before socket protocol layer bind operation is + * performed and the socket @sock is bound to the address specified in the + * @address parameter. + * @sock contains the socket structure. + * @address contains the address to bind to. + * @addrlen contains the length of address. + * Return 0 if permission is granted. + * @socket_connect: + * Check permission before socket protocol layer connect operation + * attempts to connect socket @sock to a remote address, @address. + * @sock contains the socket structure. + * @address contains the address of remote endpoint. + * @addrlen contains the length of address. + * Return 0 if permission is granted. + * @socket_listen: + * Check permission before socket protocol layer listen operation. + * @sock contains the socket structure. + * @backlog contains the maximum length for the pending connection queue. + * Return 0 if permission is granted. + * @socket_accept: + * Check permission before accepting a new connection. Note that the new + * socket, @newsock, has been created and some information copied to it, + * but the accept operation has not actually been performed. + * @sock contains the listening socket structure. + * @newsock contains the newly created server socket for connection. + * Return 0 if permission is granted. + * @socket_post_accept: + * This hook allows a security module to copy security + * information into the newly created socket's inode. + * @sock contains the listening socket structure. + * @newsock contains the newly created server socket for connection. + * @socket_sendmsg: + * Check permission before transmitting a message to another socket. + * @sock contains the socket structure. + * @msg contains the message to be transmitted. + * @size contains the size of message. + * Return 0 if permission is granted. + * @socket_recvmsg: + * Check permission before receiving a message from a socket. + * @sock contains the socket structure. + * @msg contains the message structure. + * @size contains the size of message structure. + * @flags contains the operational flags. + * Return 0 if permission is granted. + * @socket_getsockname: + * Check permission before the local address (name) of the socket object + * @sock is retrieved. + * @sock contains the socket structure. + * Return 0 if permission is granted. + * @socket_getpeername: + * Check permission before the remote address (name) of a socket object + * @sock is retrieved. + * @sock contains the socket structure. + * Return 0 if permission is granted. + * @socket_getsockopt: + * Check permissions before retrieving the options associated with socket + * @sock. + * @sock contains the socket structure. + * @level contains the protocol level to retrieve option from. + * @optname contains the name of option to retrieve. + * Return 0 if permission is granted. + * @socket_setsockopt: + * Check permissions before setting the options associated with socket + * @sock. + * @sock contains the socket structure. + * @level contains the protocol level to set options for. + * @optname contains the name of the option to set. + * Return 0 if permission is granted. + * @socket_shutdown: + * Checks permission before all or part of a connection on the socket + * @sock is shut down. + * @sock contains the socket structure. + * @how contains the flag indicating how future sends and receives are handled. + * Return 0 if permission is granted. + * @socket_sock_rcv_skb: + * Check permissions on incoming network packets. This hook is distinct + * from Netfilter's IP input hooks since it is the first time that the + * incoming sk_buff @skb has been associated with a particular socket, @sk. + * @sk contains the sock (not socket) associated with the incoming sk_buff. + * @skb contains the incoming network data. + * @socket_getpeersec: + * This hook allows the security module to provide peer socket security + * state to userspace via getsockopt SO_GETPEERSEC. + * @sock is the local socket. + * @optval userspace memory where the security state is to be copied. + * @optlen userspace int where the module should copy the actual length + * of the security state. + * @len as input is the maximum length to copy to userspace provided + * by the caller. + * Return 0 if all is well, otherwise, typical getsockopt return + * values. + * @sk_alloc_security: + * Allocate and attach a security structure to the sk->sk_security field, + * which is used to copy security attributes between local stream sockets. + * @sk_free_security: + * Deallocate security structure. + * + * Security hooks affecting all System V IPC operations. + * + * @ipc_permission: + * Check permissions for access to IPC + * @ipcp contains the kernel IPC permission structure + * @flag contains the desired (requested) permission set + * Return 0 if permission is granted. + * + * Security hooks for individual messages held in System V IPC message queues + * @msg_msg_alloc_security: + * Allocate and attach a security structure to the msg->security field. + * The security field is initialized to NULL when the structure is first + * created. + * @msg contains the message structure to be modified. + * Return 0 if operation was successful and permission is granted. + * @msg_msg_free_security: + * Deallocate the security structure for this message. + * @msg contains the message structure to be modified. + * + * Security hooks for System V IPC Message Queues + * + * @msg_queue_alloc_security: + * Allocate and attach a security structure to the + * msq->q_perm.security field. The security field is initialized to + * NULL when the structure is first created. + * @msq contains the message queue structure to be modified. + * Return 0 if operation was successful and permission is granted. + * @msg_queue_free_security: + * Deallocate security structure for this message queue. + * @msq contains the message queue structure to be modified. + * @msg_queue_associate: + * Check permission when a message queue is requested through the + * msgget system call. This hook is only called when returning the + * message queue identifier for an existing message queue, not when a + * new message queue is created. + * @msq contains the message queue to act upon. + * @msqflg contains the operation control flags. + * Return 0 if permission is granted. + * @msg_queue_msgctl: + * Check permission when a message control operation specified by @cmd + * is to be performed on the message queue @msq. + * The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO. + * @msq contains the message queue to act upon. May be NULL. + * @cmd contains the operation to be performed. + * Return 0 if permission is granted. + * @msg_queue_msgsnd: + * Check permission before a message, @msg, is enqueued on the message + * queue, @msq. + * @msq contains the message queue to send message to. + * @msg contains the message to be enqueued. + * @msqflg contains operational flags. + * Return 0 if permission is granted. + * @msg_queue_msgrcv: + * Check permission before a message, @msg, is removed from the message + * queue, @msq. The @target task structure contains a pointer to the + * process that will be receiving the message (not equal to the current + * process when inline receives are being performed). + * @msq contains the message queue to retrieve message from. + * @msg contains the message destination. + * @target contains the task structure for recipient process. + * @type contains the type of message requested. + * @mode contains the operational flags. + * Return 0 if permission is granted. + * + * Security hooks for System V Shared Memory Segments + * + * @shm_alloc_security: + * Allocate and attach a security structure to the shp->shm_perm.security + * field. The security field is initialized to NULL when the structure is + * first created. + * @shp contains the shared memory structure to be modified. + * Return 0 if operation was successful and permission is granted. + * @shm_free_security: + * Deallocate the security struct for this memory segment. + * @shp contains the shared memory structure to be modified. + * @shm_associate: + * Check permission when a shared memory region is requested through the + * shmget system call. This hook is only called when returning the shared + * memory region identifier for an existing region, not when a new shared + * memory region is created. + * @shp contains the shared memory structure to be modified. + * @shmflg contains the operation control flags. + * Return 0 if permission is granted. + * @shm_shmctl: + * Check permission when a shared memory control operation specified by + * @cmd is to be performed on the shared memory region @shp. + * The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO. + * @shp contains shared memory structure to be modified. + * @cmd contains the operation to be performed. + * Return 0 if permission is granted. + * @shm_shmat: + * Check permissions prior to allowing the shmat system call to attach the + * shared memory segment @shp to the data segment of the calling process. + * The attaching address is specified by @shmaddr. + * @shp contains the shared memory structure to be modified. + * @shmaddr contains the address to attach memory region to. + * @shmflg contains the operational flags. + * Return 0 if permission is granted. + * + * Security hooks for System V Semaphores + * + * @sem_alloc_security: + * Allocate and attach a security structure to the sma->sem_perm.security + * field. The security field is initialized to NULL when the structure is + * first created. + * @sma contains the semaphore structure + * Return 0 if operation was successful and permission is granted. + * @sem_free_security: + * deallocate security struct for this semaphore + * @sma contains the semaphore structure. + * @sem_associate: + * Check permission when a semaphore is requested through the semget + * system call. This hook is only called when returning the semaphore + * identifier for an existing semaphore, not when a new one must be + * created. + * @sma contains the semaphore structure. + * @semflg contains the operation control flags. + * Return 0 if permission is granted. + * @sem_semctl: + * Check permission when a semaphore operation specified by @cmd is to be + * performed on the semaphore @sma. The @sma may be NULL, e.g. for + * IPC_INFO or SEM_INFO. + * @sma contains the semaphore structure. May be NULL. + * @cmd contains the operation to be performed. + * Return 0 if permission is granted. + * @sem_semop + * Check permissions before performing operations on members of the + * semaphore set @sma. If the @alter flag is nonzero, the semaphore set + * may be modified. + * @sma contains the semaphore structure. + * @sops contains the operations to perform. + * @nsops contains the number of operations to perform. + * @alter contains the flag indicating whether changes are to be made. + * Return 0 if permission is granted. + * + * @ptrace: + * Check permission before allowing the @parent process to trace the + * @child process. + * Security modules may also want to perform a process tracing check + * during an execve in the set_security or apply_creds hooks of + * binprm_security_ops if the process is being traced and its security + * attributes would be changed by the execve. + * @parent contains the task_struct structure for parent process. + * @child contains the task_struct structure for child process. + * Return 0 if permission is granted. + * @capget: + * Get the @effective, @inheritable, and @permitted capability sets for + * the @target process. The hook may also perform permission checking to + * determine if the current process is allowed to see the capability sets + * of the @target process. + * @target contains the task_struct structure for target process. + * @effective contains the effective capability set. + * @inheritable contains the inheritable capability set. + * @permitted contains the permitted capability set. + * Return 0 if the capability sets were successfully obtained. + * @capset_check: + * Check permission before setting the @effective, @inheritable, and + * @permitted capability sets for the @target process. + * Caveat: @target is also set to current if a set of processes is + * specified (i.e. all processes other than current and init or a + * particular process group). Hence, the capset_set hook may need to + * revalidate permission to the actual target process. + * @target contains the task_struct structure for target process. + * @effective contains the effective capability set. + * @inheritable contains the inheritable capability set. + * @permitted contains the permitted capability set. + * Return 0 if permission is granted. + * @capset_set: + * Set the @effective, @inheritable, and @permitted capability sets for + * the @target process. Since capset_check cannot always check permission + * to the real @target process, this hook may also perform permission + * checking to determine if the current process is allowed to set the + * capability sets of the @target process. However, this hook has no way + * of returning an error due to the structure of the sys_capset code. + * @target contains the task_struct structure for target process. + * @effective contains the effective capability set. + * @inheritable contains the inheritable capability set. + * @permitted contains the permitted capability set. + * @acct: + * Check permission before enabling or disabling process accounting. If + * accounting is being enabled, then @file refers to the open file used to + * store accounting records. If accounting is being disabled, then @file + * is NULL. + * @file contains the file structure for the accounting file (may be NULL). + * Return 0 if permission is granted. + * @sysctl: + * Check permission before accessing the @table sysctl variable in the + * manner specified by @op. + * @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. + * See the syslog(2) manual page for an explanation of the @type values. + * @type contains the type of action. + * Return 0 if permission is granted. + * @settime: + * Check permission to change the system time. + * struct timespec and timezone are defined in include/linux/time.h + * @ts contains new time + * @tz contains new timezone + * Return 0 if permission is granted. + * @vm_enough_memory: + * Check permissions for allocating a new virtual mapping. + * @pages contains the number of pages. + * Return 0 if permission is granted. + * + * @register_security: + * allow module stacking. + * @name contains the name of the security module being stacked. + * @ops contains a pointer to the struct security_operations of the module to stack. + * @unregister_security: + * remove a stacked module. + * @name contains the name of the security module being unstacked. + * @ops contains a pointer to the struct security_operations of the module to unstack. + * + * This is the main security structure. + */ +struct security_operations { + int (*ptrace) (struct task_struct * parent, struct task_struct * child); + int (*capget) (struct task_struct * target, + kernel_cap_t * effective, + kernel_cap_t * inheritable, kernel_cap_t * permitted); + int (*capset_check) (struct task_struct * target, + kernel_cap_t * effective, + kernel_cap_t * inheritable, + kernel_cap_t * permitted); + void (*capset_set) (struct task_struct * target, + kernel_cap_t * effective, + kernel_cap_t * inheritable, + kernel_cap_t * permitted); + 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); + int (*settime) (struct timespec *ts, struct timezone *tz); + int (*vm_enough_memory) (long pages); + + int (*bprm_alloc_security) (struct linux_binprm * bprm); + void (*bprm_free_security) (struct linux_binprm * bprm); + void (*bprm_apply_creds) (struct linux_binprm * bprm, int unsafe); + void (*bprm_post_apply_creds) (struct linux_binprm * bprm); + int (*bprm_set_security) (struct linux_binprm * bprm); + int (*bprm_check_security) (struct linux_binprm * bprm); + int (*bprm_secureexec) (struct linux_binprm * bprm); + + int (*sb_alloc_security) (struct super_block * sb); + void (*sb_free_security) (struct super_block * sb); + int (*sb_copy_data)(struct file_system_type *type, + void *orig, void *copy); + int (*sb_kern_mount) (struct super_block *sb, void *data); + int (*sb_statfs) (struct super_block * sb); + int (*sb_mount) (char *dev_name, struct nameidata * nd, + char *type, unsigned long flags, void *data); + int (*sb_check_sb) (struct vfsmount * mnt, struct nameidata * nd); + int (*sb_umount) (struct vfsmount * mnt, int flags); + void (*sb_umount_close) (struct vfsmount * mnt); + void (*sb_umount_busy) (struct vfsmount * mnt); + void (*sb_post_remount) (struct vfsmount * mnt, + unsigned long flags, void *data); + void (*sb_post_mountroot) (void); + void (*sb_post_addmount) (struct vfsmount * mnt, + struct nameidata * mountpoint_nd); + int (*sb_pivotroot) (struct nameidata * old_nd, + struct nameidata * new_nd); + void (*sb_post_pivotroot) (struct nameidata * old_nd, + struct nameidata * new_nd); + + int (*inode_alloc_security) (struct inode *inode); + void (*inode_free_security) (struct inode *inode); + int (*inode_create) (struct inode *dir, + struct dentry *dentry, int mode); + void (*inode_post_create) (struct inode *dir, + struct dentry *dentry, int mode); + int (*inode_link) (struct dentry *old_dentry, + struct inode *dir, struct dentry *new_dentry); + void (*inode_post_link) (struct dentry *old_dentry, + struct inode *dir, struct dentry *new_dentry); + int (*inode_unlink) (struct inode *dir, struct dentry *dentry); + int (*inode_symlink) (struct inode *dir, + struct dentry *dentry, const char *old_name); + void (*inode_post_symlink) (struct inode *dir, + struct dentry *dentry, + const char *old_name); + int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode); + void (*inode_post_mkdir) (struct inode *dir, struct dentry *dentry, + int mode); + int (*inode_rmdir) (struct inode *dir, struct dentry *dentry); + int (*inode_mknod) (struct inode *dir, struct dentry *dentry, + int mode, dev_t dev); + void (*inode_post_mknod) (struct inode *dir, struct dentry *dentry, + int mode, dev_t dev); + int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry); + void (*inode_post_rename) (struct inode *old_dir, + struct dentry *old_dentry, + struct inode *new_dir, + struct dentry *new_dentry); + int (*inode_readlink) (struct dentry *dentry); + int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd); + int (*inode_permission) (struct inode *inode, int mask, struct nameidata *nd); + int (*inode_setattr) (struct dentry *dentry, struct iattr *attr); + int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry); + void (*inode_delete) (struct inode *inode); + int (*inode_setxattr) (struct dentry *dentry, char *name, void *value, + size_t size, int flags); + void (*inode_post_setxattr) (struct dentry *dentry, char *name, void *value, + size_t size, int flags); + 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 (*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); + + int (*file_permission) (struct file * file, int mask); + int (*file_alloc_security) (struct file * file); + 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, + unsigned long reqprot, + unsigned long prot, unsigned long flags); + int (*file_mprotect) (struct vm_area_struct * vma, + unsigned long reqprot, + unsigned long prot); + int (*file_lock) (struct file * file, unsigned int cmd); + int (*file_fcntl) (struct file * file, unsigned int cmd, + unsigned long arg); + int (*file_set_fowner) (struct file * file); + int (*file_send_sigiotask) (struct task_struct * tsk, + struct fown_struct * fown, int sig); + int (*file_receive) (struct file * file); + + int (*task_create) (unsigned long clone_flags); + int (*task_alloc_security) (struct task_struct * p); + void (*task_free_security) (struct task_struct * p); + int (*task_setuid) (uid_t id0, uid_t id1, uid_t id2, int flags); + int (*task_post_setuid) (uid_t old_ruid /* or fsuid */ , + uid_t old_euid, uid_t old_suid, int flags); + int (*task_setgid) (gid_t id0, gid_t id1, gid_t id2, int flags); + int (*task_setpgid) (struct task_struct * p, pid_t pgid); + int (*task_getpgid) (struct task_struct * p); + int (*task_getsid) (struct task_struct * p); + int (*task_setgroups) (struct group_info *group_info); + int (*task_setnice) (struct task_struct * p, int nice); + int (*task_setrlimit) (unsigned int resource, struct rlimit * new_rlim); + int (*task_setscheduler) (struct task_struct * p, int policy, + struct sched_param * lp); + int (*task_getscheduler) (struct task_struct * p); + int (*task_kill) (struct task_struct * p, + struct siginfo * info, int sig); + int (*task_wait) (struct task_struct * p); + int (*task_prctl) (int option, unsigned long arg2, + unsigned long arg3, unsigned long arg4, + unsigned long arg5); + void (*task_reparent_to_init) (struct task_struct * p); + void (*task_to_inode)(struct task_struct *p, struct inode *inode); + + int (*ipc_permission) (struct kern_ipc_perm * ipcp, short flag); + + int (*msg_msg_alloc_security) (struct msg_msg * msg); + void (*msg_msg_free_security) (struct msg_msg * msg); + + int (*msg_queue_alloc_security) (struct msg_queue * msq); + void (*msg_queue_free_security) (struct msg_queue * msq); + int (*msg_queue_associate) (struct msg_queue * msq, int msqflg); + int (*msg_queue_msgctl) (struct msg_queue * msq, int cmd); + int (*msg_queue_msgsnd) (struct msg_queue * msq, + struct msg_msg * msg, int msqflg); + int (*msg_queue_msgrcv) (struct msg_queue * msq, + struct msg_msg * msg, + struct task_struct * target, + long type, int mode); + + int (*shm_alloc_security) (struct shmid_kernel * shp); + void (*shm_free_security) (struct shmid_kernel * shp); + int (*shm_associate) (struct shmid_kernel * shp, int shmflg); + int (*shm_shmctl) (struct shmid_kernel * shp, int cmd); + int (*shm_shmat) (struct shmid_kernel * shp, + char __user *shmaddr, int shmflg); + + int (*sem_alloc_security) (struct sem_array * sma); + void (*sem_free_security) (struct sem_array * sma); + int (*sem_associate) (struct sem_array * sma, int semflg); + int (*sem_semctl) (struct sem_array * sma, int cmd); + int (*sem_semop) (struct sem_array * sma, + struct sembuf * sops, unsigned nsops, int alter); + + int (*netlink_send) (struct sock * sk, struct sk_buff * skb); + int (*netlink_recv) (struct sk_buff * skb); + + /* allow module stacking */ + int (*register_security) (const char *name, + struct security_operations *ops); + int (*unregister_security) (const char *name, + struct security_operations *ops); + + void (*d_instantiate) (struct dentry *dentry, struct inode *inode); + + int (*getprocattr)(struct task_struct *p, char *name, void *value, size_t size); + int (*setprocattr)(struct task_struct *p, char *name, void *value, size_t size); + +#ifdef CONFIG_SECURITY_NETWORK + int (*unix_stream_connect) (struct socket * sock, + struct socket * other, struct sock * newsk); + int (*unix_may_send) (struct socket * sock, struct socket * other); + + int (*socket_create) (int family, int type, int protocol, int kern); + void (*socket_post_create) (struct socket * sock, int family, + int type, int protocol, int kern); + int (*socket_bind) (struct socket * sock, + struct sockaddr * address, int addrlen); + int (*socket_connect) (struct socket * sock, + struct sockaddr * address, int addrlen); + int (*socket_listen) (struct socket * sock, int backlog); + int (*socket_accept) (struct socket * sock, struct socket * newsock); + void (*socket_post_accept) (struct socket * sock, + struct socket * newsock); + int (*socket_sendmsg) (struct socket * sock, + struct msghdr * msg, int size); + int (*socket_recvmsg) (struct socket * sock, + struct msghdr * msg, int size, int flags); + int (*socket_getsockname) (struct socket * sock); + int (*socket_getpeername) (struct socket * sock); + int (*socket_getsockopt) (struct socket * sock, int level, int optname); + 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 (*sk_alloc_security) (struct sock *sk, int family, int priority); + void (*sk_free_security) (struct sock *sk); +#endif /* CONFIG_SECURITY_NETWORK */ +}; + +/* global variables */ +extern struct security_operations *security_ops; + +/* inline stuff */ +static inline int security_ptrace (struct task_struct * parent, struct task_struct * child) +{ + return security_ops->ptrace (parent, child); +} + +static inline int security_capget (struct task_struct *target, + kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) +{ + return security_ops->capget (target, effective, inheritable, permitted); +} + +static inline int security_capset_check (struct task_struct *target, + kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) +{ + return security_ops->capset_check (target, effective, inheritable, permitted); +} + +static inline void security_capset_set (struct task_struct *target, + kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) +{ + security_ops->capset_set (target, effective, inheritable, permitted); +} + +static inline int security_acct (struct file *file) +{ + return security_ops->acct (file); +} + +static inline int security_sysctl(struct ctl_table *table, int op) +{ + return security_ops->sysctl(table, op); +} + +static inline int security_quotactl (int cmds, int type, int id, + struct super_block *sb) +{ + return security_ops->quotactl (cmds, type, id, sb); +} + +static inline int security_quota_on (struct dentry * dentry) +{ + return security_ops->quota_on (dentry); +} + +static inline int security_syslog(int type) +{ + return security_ops->syslog(type); +} + +static inline int security_settime(struct timespec *ts, struct timezone *tz) +{ + return security_ops->settime(ts, tz); +} + + +static inline int security_vm_enough_memory(long pages) +{ + return security_ops->vm_enough_memory(pages); +} + +static inline int security_bprm_alloc (struct linux_binprm *bprm) +{ + return security_ops->bprm_alloc_security (bprm); +} +static inline void security_bprm_free (struct linux_binprm *bprm) +{ + security_ops->bprm_free_security (bprm); +} +static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) +{ + security_ops->bprm_apply_creds (bprm, unsafe); +} +static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm) +{ + security_ops->bprm_post_apply_creds (bprm); +} +static inline int security_bprm_set (struct linux_binprm *bprm) +{ + return security_ops->bprm_set_security (bprm); +} + +static inline int security_bprm_check (struct linux_binprm *bprm) +{ + return security_ops->bprm_check_security (bprm); +} + +static inline int security_bprm_secureexec (struct linux_binprm *bprm) +{ + return security_ops->bprm_secureexec (bprm); +} + +static inline int security_sb_alloc (struct super_block *sb) +{ + return security_ops->sb_alloc_security (sb); +} + +static inline void security_sb_free (struct super_block *sb) +{ + security_ops->sb_free_security (sb); +} + +static inline int security_sb_copy_data (struct file_system_type *type, + void *orig, void *copy) +{ + return security_ops->sb_copy_data (type, orig, copy); +} + +static inline int security_sb_kern_mount (struct super_block *sb, void *data) +{ + return security_ops->sb_kern_mount (sb, data); +} + +static inline int security_sb_statfs (struct super_block *sb) +{ + return security_ops->sb_statfs (sb); +} + +static inline int security_sb_mount (char *dev_name, struct nameidata *nd, + char *type, unsigned long flags, + void *data) +{ + return security_ops->sb_mount (dev_name, nd, type, flags, data); +} + +static inline int security_sb_check_sb (struct vfsmount *mnt, + struct nameidata *nd) +{ + return security_ops->sb_check_sb (mnt, nd); +} + +static inline int security_sb_umount (struct vfsmount *mnt, int flags) +{ + return security_ops->sb_umount (mnt, flags); +} + +static inline void security_sb_umount_close (struct vfsmount *mnt) +{ + security_ops->sb_umount_close (mnt); +} + +static inline void security_sb_umount_busy (struct vfsmount *mnt) +{ + security_ops->sb_umount_busy (mnt); +} + +static inline void security_sb_post_remount (struct vfsmount *mnt, + unsigned long flags, void *data) +{ + security_ops->sb_post_remount (mnt, flags, data); +} + +static inline void security_sb_post_mountroot (void) +{ + security_ops->sb_post_mountroot (); +} + +static inline void security_sb_post_addmount (struct vfsmount *mnt, + struct nameidata *mountpoint_nd) +{ + security_ops->sb_post_addmount (mnt, mountpoint_nd); +} + +static inline int security_sb_pivotroot (struct nameidata *old_nd, + struct nameidata *new_nd) +{ + return security_ops->sb_pivotroot (old_nd, new_nd); +} + +static inline void security_sb_post_pivotroot (struct nameidata *old_nd, + struct nameidata *new_nd) +{ + security_ops->sb_post_pivotroot (old_nd, new_nd); +} + +static inline int security_inode_alloc (struct inode *inode) +{ + if (unlikely (IS_PRIVATE (inode))) + return 0; + return security_ops->inode_alloc_security (inode); +} + +static inline void security_inode_free (struct inode *inode) +{ + if (unlikely (IS_PRIVATE (inode))) + return; + security_ops->inode_free_security (inode); +} + +static inline int security_inode_create (struct inode *dir, + struct dentry *dentry, + int mode) +{ + if (unlikely (IS_PRIVATE (dir))) + return 0; + return security_ops->inode_create (dir, dentry, mode); +} + +static inline void security_inode_post_create (struct inode *dir, + struct dentry *dentry, + int mode) +{ + if (dentry->d_inode && unlikely (IS_PRIVATE (dentry->d_inode))) + return; + security_ops->inode_post_create (dir, dentry, mode); +} + +static inline int security_inode_link (struct dentry *old_dentry, + struct inode *dir, + struct dentry *new_dentry) +{ + if (unlikely (IS_PRIVATE (old_dentry->d_inode))) + return 0; + return security_ops->inode_link (old_dentry, dir, new_dentry); +} + +static inline void security_inode_post_link (struct dentry *old_dentry, + struct inode *dir, + struct dentry *new_dentry) +{ + if (new_dentry->d_inode && unlikely (IS_PRIVATE (new_dentry->d_inode))) + return; + security_ops->inode_post_link (old_dentry, dir, new_dentry); +} + +static inline int security_inode_unlink (struct inode *dir, + struct dentry *dentry) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_unlink (dir, dentry); +} + +static inline int security_inode_symlink (struct inode *dir, + struct dentry *dentry, + const char *old_name) +{ + if (unlikely (IS_PRIVATE (dir))) + return 0; + return security_ops->inode_symlink (dir, dentry, old_name); +} + +static inline void security_inode_post_symlink (struct inode *dir, + struct dentry *dentry, + const char *old_name) +{ + if (dentry->d_inode && unlikely (IS_PRIVATE (dentry->d_inode))) + return; + security_ops->inode_post_symlink (dir, dentry, old_name); +} + +static inline int security_inode_mkdir (struct inode *dir, + struct dentry *dentry, + int mode) +{ + if (unlikely (IS_PRIVATE (dir))) + return 0; + return security_ops->inode_mkdir (dir, dentry, mode); +} + +static inline void security_inode_post_mkdir (struct inode *dir, + struct dentry *dentry, + int mode) +{ + if (dentry->d_inode && unlikely (IS_PRIVATE (dentry->d_inode))) + return; + security_ops->inode_post_mkdir (dir, dentry, mode); +} + +static inline int security_inode_rmdir (struct inode *dir, + struct dentry *dentry) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_rmdir (dir, dentry); +} + +static inline int security_inode_mknod (struct inode *dir, + struct dentry *dentry, + int mode, dev_t dev) +{ + if (unlikely (IS_PRIVATE (dir))) + return 0; + return security_ops->inode_mknod (dir, dentry, mode, dev); +} + +static inline void security_inode_post_mknod (struct inode *dir, + struct dentry *dentry, + int mode, dev_t dev) +{ + if (dentry->d_inode && unlikely (IS_PRIVATE (dentry->d_inode))) + return; + security_ops->inode_post_mknod (dir, dentry, mode, dev); +} + +static inline int security_inode_rename (struct inode *old_dir, + struct dentry *old_dentry, + struct inode *new_dir, + struct dentry *new_dentry) +{ + if (unlikely (IS_PRIVATE (old_dentry->d_inode) || + (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode)))) + return 0; + return security_ops->inode_rename (old_dir, old_dentry, + new_dir, new_dentry); +} + +static inline void security_inode_post_rename (struct inode *old_dir, + struct dentry *old_dentry, + struct inode *new_dir, + struct dentry *new_dentry) +{ + if (unlikely (IS_PRIVATE (old_dentry->d_inode) || + (new_dentry->d_inode && IS_PRIVATE (new_dentry->d_inode)))) + return; + security_ops->inode_post_rename (old_dir, old_dentry, + new_dir, new_dentry); +} + +static inline int security_inode_readlink (struct dentry *dentry) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_readlink (dentry); +} + +static inline int security_inode_follow_link (struct dentry *dentry, + struct nameidata *nd) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_follow_link (dentry, nd); +} + +static inline int security_inode_permission (struct inode *inode, int mask, + struct nameidata *nd) +{ + if (unlikely (IS_PRIVATE (inode))) + return 0; + return security_ops->inode_permission (inode, mask, nd); +} + +static inline int security_inode_setattr (struct dentry *dentry, + struct iattr *attr) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_setattr (dentry, attr); +} + +static inline int security_inode_getattr (struct vfsmount *mnt, + struct dentry *dentry) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_getattr (mnt, dentry); +} + +static inline void security_inode_delete (struct inode *inode) +{ + if (unlikely (IS_PRIVATE (inode))) + return; + security_ops->inode_delete (inode); +} + +static inline int security_inode_setxattr (struct dentry *dentry, char *name, + void *value, size_t size, int flags) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_setxattr (dentry, name, value, size, flags); +} + +static inline void security_inode_post_setxattr (struct dentry *dentry, char *name, + void *value, size_t size, int flags) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return; + security_ops->inode_post_setxattr (dentry, name, value, size, flags); +} + +static inline int security_inode_getxattr (struct dentry *dentry, char *name) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_getxattr (dentry, name); +} + +static inline int security_inode_listxattr (struct dentry *dentry) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_listxattr (dentry); +} + +static inline int security_inode_removexattr (struct dentry *dentry, char *name) +{ + if (unlikely (IS_PRIVATE (dentry->d_inode))) + return 0; + return security_ops->inode_removexattr (dentry, name); +} + +static inline int security_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size) +{ + if (unlikely (IS_PRIVATE (inode))) + return 0; + return security_ops->inode_getsecurity(inode, name, buffer, size); +} + +static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) +{ + if (unlikely (IS_PRIVATE (inode))) + return 0; + return security_ops->inode_setsecurity(inode, name, value, size, flags); +} + +static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) +{ + if (unlikely (IS_PRIVATE (inode))) + return 0; + return security_ops->inode_listsecurity(inode, buffer, buffer_size); +} + +static inline int security_file_permission (struct file *file, int mask) +{ + return security_ops->file_permission (file, mask); +} + +static inline int security_file_alloc (struct file *file) +{ + return security_ops->file_alloc_security (file); +} + +static inline void security_file_free (struct file *file) +{ + security_ops->file_free_security (file); +} + +static inline int security_file_ioctl (struct file *file, unsigned int cmd, + unsigned long arg) +{ + return security_ops->file_ioctl (file, cmd, arg); +} + +static inline int security_file_mmap (struct file *file, unsigned long reqprot, + unsigned long prot, + unsigned long flags) +{ + return security_ops->file_mmap (file, reqprot, prot, flags); +} + +static inline int security_file_mprotect (struct vm_area_struct *vma, + unsigned long reqprot, + unsigned long prot) +{ + return security_ops->file_mprotect (vma, reqprot, prot); +} + +static inline int security_file_lock (struct file *file, unsigned int cmd) +{ + return security_ops->file_lock (file, cmd); +} + +static inline int security_file_fcntl (struct file *file, unsigned int cmd, + unsigned long arg) +{ + return security_ops->file_fcntl (file, cmd, arg); +} + +static inline int security_file_set_fowner (struct file *file) +{ + return security_ops->file_set_fowner (file); +} + +static inline int security_file_send_sigiotask (struct task_struct *tsk, + struct fown_struct *fown, + int sig) +{ + return security_ops->file_send_sigiotask (tsk, fown, sig); +} + +static inline int security_file_receive (struct file *file) +{ + return security_ops->file_receive (file); +} + +static inline int security_task_create (unsigned long clone_flags) +{ + return security_ops->task_create (clone_flags); +} + +static inline int security_task_alloc (struct task_struct *p) +{ + return security_ops->task_alloc_security (p); +} + +static inline void security_task_free (struct task_struct *p) +{ + security_ops->task_free_security (p); +} + +static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2, + int flags) +{ + return security_ops->task_setuid (id0, id1, id2, flags); +} + +static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid, + uid_t old_suid, int flags) +{ + return security_ops->task_post_setuid (old_ruid, old_euid, old_suid, flags); +} + +static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2, + int flags) +{ + return security_ops->task_setgid (id0, id1, id2, flags); +} + +static inline int security_task_setpgid (struct task_struct *p, pid_t pgid) +{ + return security_ops->task_setpgid (p, pgid); +} + +static inline int security_task_getpgid (struct task_struct *p) +{ + return security_ops->task_getpgid (p); +} + +static inline int security_task_getsid (struct task_struct *p) +{ + return security_ops->task_getsid (p); +} + +static inline int security_task_setgroups (struct group_info *group_info) +{ + return security_ops->task_setgroups (group_info); +} + +static inline int security_task_setnice (struct task_struct *p, int nice) +{ + return security_ops->task_setnice (p, nice); +} + +static inline int security_task_setrlimit (unsigned int resource, + struct rlimit *new_rlim) +{ + return security_ops->task_setrlimit (resource, new_rlim); +} + +static inline int security_task_setscheduler (struct task_struct *p, + int policy, + struct sched_param *lp) +{ + return security_ops->task_setscheduler (p, policy, lp); +} + +static inline int security_task_getscheduler (struct task_struct *p) +{ + return security_ops->task_getscheduler (p); +} + +static inline int security_task_kill (struct task_struct *p, + struct siginfo *info, int sig) +{ + return security_ops->task_kill (p, info, sig); +} + +static inline int security_task_wait (struct task_struct *p) +{ + return security_ops->task_wait (p); +} + +static inline int security_task_prctl (int option, unsigned long arg2, + unsigned long arg3, + unsigned long arg4, + unsigned long arg5) +{ + return security_ops->task_prctl (option, arg2, arg3, arg4, arg5); +} + +static inline void security_task_reparent_to_init (struct task_struct *p) +{ + security_ops->task_reparent_to_init (p); +} + +static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) +{ + security_ops->task_to_inode(p, inode); +} + +static inline int security_ipc_permission (struct kern_ipc_perm *ipcp, + short flag) +{ + return security_ops->ipc_permission (ipcp, flag); +} + +static inline int security_msg_msg_alloc (struct msg_msg * msg) +{ + return security_ops->msg_msg_alloc_security (msg); +} + +static inline void security_msg_msg_free (struct msg_msg * msg) +{ + security_ops->msg_msg_free_security(msg); +} + +static inline int security_msg_queue_alloc (struct msg_queue *msq) +{ + return security_ops->msg_queue_alloc_security (msq); +} + +static inline void security_msg_queue_free (struct msg_queue *msq) +{ + security_ops->msg_queue_free_security (msq); +} + +static inline int security_msg_queue_associate (struct msg_queue * msq, + int msqflg) +{ + return security_ops->msg_queue_associate (msq, msqflg); +} + +static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd) +{ + return security_ops->msg_queue_msgctl (msq, cmd); +} + +static inline int security_msg_queue_msgsnd (struct msg_queue * msq, + struct msg_msg * msg, int msqflg) +{ + return security_ops->msg_queue_msgsnd (msq, msg, msqflg); +} + +static inline int security_msg_queue_msgrcv (struct msg_queue * msq, + struct msg_msg * msg, + struct task_struct * target, + long type, int mode) +{ + return security_ops->msg_queue_msgrcv (msq, msg, target, type, mode); +} + +static inline int security_shm_alloc (struct shmid_kernel *shp) +{ + return security_ops->shm_alloc_security (shp); +} + +static inline void security_shm_free (struct shmid_kernel *shp) +{ + security_ops->shm_free_security (shp); +} + +static inline int security_shm_associate (struct shmid_kernel * shp, + int shmflg) +{ + return security_ops->shm_associate(shp, shmflg); +} + +static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd) +{ + return security_ops->shm_shmctl (shp, cmd); +} + +static inline int security_shm_shmat (struct shmid_kernel * shp, + char __user *shmaddr, int shmflg) +{ + return security_ops->shm_shmat(shp, shmaddr, shmflg); +} + +static inline int security_sem_alloc (struct sem_array *sma) +{ + return security_ops->sem_alloc_security (sma); +} + +static inline void security_sem_free (struct sem_array *sma) +{ + security_ops->sem_free_security (sma); +} + +static inline int security_sem_associate (struct sem_array * sma, int semflg) +{ + return security_ops->sem_associate (sma, semflg); +} + +static inline int security_sem_semctl (struct sem_array * sma, int cmd) +{ + return security_ops->sem_semctl(sma, cmd); +} + +static inline int security_sem_semop (struct sem_array * sma, + struct sembuf * sops, unsigned nsops, + int alter) +{ + return security_ops->sem_semop(sma, sops, nsops, alter); +} + +static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode) +{ + if (unlikely (inode && IS_PRIVATE (inode))) + return; + security_ops->d_instantiate (dentry, inode); +} + +static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size) +{ + return security_ops->getprocattr(p, name, value, size); +} + +static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) +{ + return security_ops->setprocattr(p, name, value, size); +} + +static inline int security_netlink_send(struct sock *sk, struct sk_buff * skb) +{ + return security_ops->netlink_send(sk, skb); +} + +static inline int security_netlink_recv(struct sk_buff * skb) +{ + return security_ops->netlink_recv(skb); +} + +/* prototypes */ +extern int security_init (void); +extern int register_security (struct security_operations *ops); +extern int unregister_security (struct security_operations *ops); +extern int mod_reg_security (const char *name, struct security_operations *ops); +extern int mod_unreg_security (const char *name, struct security_operations *ops); + + +#else /* CONFIG_SECURITY */ + +/* + * This is the default capabilities functionality. Most of these functions + * are just stubbed out, but a few must call the proper capable code. + */ + +static inline int security_init(void) +{ + return 0; +} + +static inline int security_ptrace (struct task_struct *parent, struct task_struct * child) +{ + return cap_ptrace (parent, child); +} + +static inline int security_capget (struct task_struct *target, + kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) +{ + return cap_capget (target, effective, inheritable, permitted); +} + +static inline int security_capset_check (struct task_struct *target, + kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) +{ + return cap_capset_check (target, effective, inheritable, permitted); +} + +static inline void security_capset_set (struct task_struct *target, + kernel_cap_t *effective, + kernel_cap_t *inheritable, + kernel_cap_t *permitted) +{ + cap_capset_set (target, effective, inheritable, permitted); +} + +static inline int security_acct (struct file *file) +{ + return 0; +} + +static inline int security_sysctl(struct ctl_table *table, int op) +{ + return 0; +} + +static inline int security_quotactl (int cmds, int type, int id, + struct super_block * sb) +{ + return 0; +} + +static inline int security_quota_on (struct dentry * dentry) +{ + return 0; +} + +static inline int security_syslog(int type) +{ + return cap_syslog(type); +} + +static inline int security_settime(struct timespec *ts, struct timezone *tz) +{ + return cap_settime(ts, tz); +} + +static inline int security_vm_enough_memory(long pages) +{ + return cap_vm_enough_memory(pages); +} + +static inline int security_bprm_alloc (struct linux_binprm *bprm) +{ + return 0; +} + +static inline void security_bprm_free (struct linux_binprm *bprm) +{ } + +static inline void security_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) +{ + cap_bprm_apply_creds (bprm, unsafe); +} + +static inline void security_bprm_post_apply_creds (struct linux_binprm *bprm) +{ + return; +} + +static inline int security_bprm_set (struct linux_binprm *bprm) +{ + return cap_bprm_set_security (bprm); +} + +static inline int security_bprm_check (struct linux_binprm *bprm) +{ + return 0; +} + +static inline int security_bprm_secureexec (struct linux_binprm *bprm) +{ + return cap_bprm_secureexec(bprm); +} + +static inline int security_sb_alloc (struct super_block *sb) +{ + return 0; +} + +static inline void security_sb_free (struct super_block *sb) +{ } + +static inline int security_sb_copy_data (struct file_system_type *type, + void *orig, void *copy) +{ + return 0; +} + +static inline int security_sb_kern_mount (struct super_block *sb, void *data) +{ + return 0; +} + +static inline int security_sb_statfs (struct super_block *sb) +{ + return 0; +} + +static inline int security_sb_mount (char *dev_name, struct nameidata *nd, + char *type, unsigned long flags, + void *data) +{ + return 0; +} + +static inline int security_sb_check_sb (struct vfsmount *mnt, + struct nameidata *nd) +{ + return 0; +} + +static inline int security_sb_umount (struct vfsmount *mnt, int flags) +{ + return 0; +} + +static inline void security_sb_umount_close (struct vfsmount *mnt) +{ } + +static inline void security_sb_umount_busy (struct vfsmount *mnt) +{ } + +static inline void security_sb_post_remount (struct vfsmount *mnt, + unsigned long flags, void *data) +{ } + +static inline void security_sb_post_mountroot (void) +{ } + +static inline void security_sb_post_addmount (struct vfsmount *mnt, + struct nameidata *mountpoint_nd) +{ } + +static inline int security_sb_pivotroot (struct nameidata *old_nd, + struct nameidata *new_nd) +{ + return 0; +} + +static inline void security_sb_post_pivotroot (struct nameidata *old_nd, + struct nameidata *new_nd) +{ } + +static inline int security_inode_alloc (struct inode *inode) +{ + return 0; +} + +static inline void security_inode_free (struct inode *inode) +{ } + +static inline int security_inode_create (struct inode *dir, + struct dentry *dentry, + int mode) +{ + return 0; +} + +static inline void security_inode_post_create (struct inode *dir, + struct dentry *dentry, + int mode) +{ } + +static inline int security_inode_link (struct dentry *old_dentry, + struct inode *dir, + struct dentry *new_dentry) +{ + return 0; +} + +static inline void security_inode_post_link (struct dentry *old_dentry, + struct inode *dir, + struct dentry *new_dentry) +{ } + +static inline int security_inode_unlink (struct inode *dir, + struct dentry *dentry) +{ + return 0; +} + +static inline int security_inode_symlink (struct inode *dir, + struct dentry *dentry, + const char *old_name) +{ + return 0; +} + +static inline void security_inode_post_symlink (struct inode *dir, + struct dentry *dentry, + const char *old_name) +{ } + +static inline int security_inode_mkdir (struct inode *dir, + struct dentry *dentry, + int mode) +{ + return 0; +} + +static inline void security_inode_post_mkdir (struct inode *dir, + struct dentry *dentry, + int mode) +{ } + +static inline int security_inode_rmdir (struct inode *dir, + struct dentry *dentry) +{ + return 0; +} + +static inline int security_inode_mknod (struct inode *dir, + struct dentry *dentry, + int mode, dev_t dev) +{ + return 0; +} + +static inline void security_inode_post_mknod (struct inode *dir, + struct dentry *dentry, + int mode, dev_t dev) +{ } + +static inline int security_inode_rename (struct inode *old_dir, + struct dentry *old_dentry, + struct inode *new_dir, + struct dentry *new_dentry) +{ + return 0; +} + +static inline void security_inode_post_rename (struct inode *old_dir, + struct dentry *old_dentry, + struct inode *new_dir, + struct dentry *new_dentry) +{ } + +static inline int security_inode_readlink (struct dentry *dentry) +{ + return 0; +} + +static inline int security_inode_follow_link (struct dentry *dentry, + struct nameidata *nd) +{ + return 0; +} + +static inline int security_inode_permission (struct inode *inode, int mask, + struct nameidata *nd) +{ + return 0; +} + +static inline int security_inode_setattr (struct dentry *dentry, + struct iattr *attr) +{ + return 0; +} + +static inline int security_inode_getattr (struct vfsmount *mnt, + struct dentry *dentry) +{ + return 0; +} + +static inline void security_inode_delete (struct inode *inode) +{ } + +static inline int security_inode_setxattr (struct dentry *dentry, char *name, + void *value, size_t size, int flags) +{ + return cap_inode_setxattr(dentry, name, value, size, flags); +} + +static inline void security_inode_post_setxattr (struct dentry *dentry, char *name, + void *value, size_t size, int flags) +{ } + +static inline int security_inode_getxattr (struct dentry *dentry, char *name) +{ + return 0; +} + +static inline int security_inode_listxattr (struct dentry *dentry) +{ + return 0; +} + +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) +{ + return -EOPNOTSUPP; +} + +static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) +{ + return -EOPNOTSUPP; +} + +static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) +{ + return 0; +} + +static inline int security_file_permission (struct file *file, int mask) +{ + return 0; +} + +static inline int security_file_alloc (struct file *file) +{ + return 0; +} + +static inline void security_file_free (struct file *file) +{ } + +static inline int security_file_ioctl (struct file *file, unsigned int cmd, + unsigned long arg) +{ + return 0; +} + +static inline int security_file_mmap (struct file *file, unsigned long reqprot, + unsigned long prot, + unsigned long flags) +{ + return 0; +} + +static inline int security_file_mprotect (struct vm_area_struct *vma, + unsigned long reqprot, + unsigned long prot) +{ + return 0; +} + +static inline int security_file_lock (struct file *file, unsigned int cmd) +{ + return 0; +} + +static inline int security_file_fcntl (struct file *file, unsigned int cmd, + unsigned long arg) +{ + return 0; +} + +static inline int security_file_set_fowner (struct file *file) +{ + return 0; +} + +static inline int security_file_send_sigiotask (struct task_struct *tsk, + struct fown_struct *fown, + int sig) +{ + return 0; +} + +static inline int security_file_receive (struct file *file) +{ + return 0; +} + +static inline int security_task_create (unsigned long clone_flags) +{ + return 0; +} + +static inline int security_task_alloc (struct task_struct *p) +{ + return 0; +} + +static inline void security_task_free (struct task_struct *p) +{ } + +static inline int security_task_setuid (uid_t id0, uid_t id1, uid_t id2, + int flags) +{ + return 0; +} + +static inline int security_task_post_setuid (uid_t old_ruid, uid_t old_euid, + uid_t old_suid, int flags) +{ + return cap_task_post_setuid (old_ruid, old_euid, old_suid, flags); +} + +static inline int security_task_setgid (gid_t id0, gid_t id1, gid_t id2, + int flags) +{ + return 0; +} + +static inline int security_task_setpgid (struct task_struct *p, pid_t pgid) +{ + return 0; +} + +static inline int security_task_getpgid (struct task_struct *p) +{ + return 0; +} + +static inline int security_task_getsid (struct task_struct *p) +{ + return 0; +} + +static inline int security_task_setgroups (struct group_info *group_info) +{ + return 0; +} + +static inline int security_task_setnice (struct task_struct *p, int nice) +{ + return 0; +} + +static inline int security_task_setrlimit (unsigned int resource, + struct rlimit *new_rlim) +{ + return 0; +} + +static inline int security_task_setscheduler (struct task_struct *p, + int policy, + struct sched_param *lp) +{ + return 0; +} + +static inline int security_task_getscheduler (struct task_struct *p) +{ + return 0; +} + +static inline int security_task_kill (struct task_struct *p, + struct siginfo *info, int sig) +{ + return 0; +} + +static inline int security_task_wait (struct task_struct *p) +{ + return 0; +} + +static inline int security_task_prctl (int option, unsigned long arg2, + unsigned long arg3, + unsigned long arg4, + unsigned long arg5) +{ + return 0; +} + +static inline void security_task_reparent_to_init (struct task_struct *p) +{ + cap_task_reparent_to_init (p); +} + +static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) +{ } + +static inline int security_ipc_permission (struct kern_ipc_perm *ipcp, + short flag) +{ + return 0; +} + +static inline int security_msg_msg_alloc (struct msg_msg * msg) +{ + return 0; +} + +static inline void security_msg_msg_free (struct msg_msg * msg) +{ } + +static inline int security_msg_queue_alloc (struct msg_queue *msq) +{ + return 0; +} + +static inline void security_msg_queue_free (struct msg_queue *msq) +{ } + +static inline int security_msg_queue_associate (struct msg_queue * msq, + int msqflg) +{ + return 0; +} + +static inline int security_msg_queue_msgctl (struct msg_queue * msq, int cmd) +{ + return 0; +} + +static inline int security_msg_queue_msgsnd (struct msg_queue * msq, + struct msg_msg * msg, int msqflg) +{ + return 0; +} + +static inline int security_msg_queue_msgrcv (struct msg_queue * msq, + struct msg_msg * msg, + struct task_struct * target, + long type, int mode) +{ + return 0; +} + +static inline int security_shm_alloc (struct shmid_kernel *shp) +{ + return 0; +} + +static inline void security_shm_free (struct shmid_kernel *shp) +{ } + +static inline int security_shm_associate (struct shmid_kernel * shp, + int shmflg) +{ + return 0; +} + +static inline int security_shm_shmctl (struct shmid_kernel * shp, int cmd) +{ + return 0; +} + +static inline int security_shm_shmat (struct shmid_kernel * shp, + char __user *shmaddr, int shmflg) +{ + return 0; +} + +static inline int security_sem_alloc (struct sem_array *sma) +{ + return 0; +} + +static inline void security_sem_free (struct sem_array *sma) +{ } + +static inline int security_sem_associate (struct sem_array * sma, int semflg) +{ + return 0; +} + +static inline int security_sem_semctl (struct sem_array * sma, int cmd) +{ + return 0; +} + +static inline int security_sem_semop (struct sem_array * sma, + struct sembuf * sops, unsigned nsops, + int alter) +{ + return 0; +} + +static inline void security_d_instantiate (struct dentry *dentry, struct inode *inode) +{ } + +static inline int security_getprocattr(struct task_struct *p, char *name, void *value, size_t size) +{ + return -EINVAL; +} + +static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) +{ + return -EINVAL; +} + +static inline int security_netlink_send (struct sock *sk, struct sk_buff *skb) +{ + return cap_netlink_send (sk, skb); +} + +static inline int security_netlink_recv (struct sk_buff *skb) +{ + return cap_netlink_recv (skb); +} + +#endif /* CONFIG_SECURITY */ + +#ifdef CONFIG_SECURITY_NETWORK +static inline int security_unix_stream_connect(struct socket * sock, + struct socket * other, + struct sock * newsk) +{ + return security_ops->unix_stream_connect(sock, other, newsk); +} + + +static inline int security_unix_may_send(struct socket * sock, + struct socket * other) +{ + return security_ops->unix_may_send(sock, other); +} + +static inline int security_socket_create (int family, int type, + int protocol, int kern) +{ + return security_ops->socket_create(family, type, protocol, kern); +} + +static inline void security_socket_post_create(struct socket * sock, + int family, + int type, + int protocol, int kern) +{ + security_ops->socket_post_create(sock, family, type, + protocol, kern); +} + +static inline int security_socket_bind(struct socket * sock, + struct sockaddr * address, + int addrlen) +{ + return security_ops->socket_bind(sock, address, addrlen); +} + +static inline int security_socket_connect(struct socket * sock, + struct sockaddr * address, + int addrlen) +{ + return security_ops->socket_connect(sock, address, addrlen); +} + +static inline int security_socket_listen(struct socket * sock, int backlog) +{ + return security_ops->socket_listen(sock, backlog); +} + +static inline int security_socket_accept(struct socket * sock, + struct socket * newsock) +{ + return security_ops->socket_accept(sock, newsock); +} + +static inline void security_socket_post_accept(struct socket * sock, + struct socket * newsock) +{ + security_ops->socket_post_accept(sock, newsock); +} + +static inline int security_socket_sendmsg(struct socket * sock, + struct msghdr * msg, int size) +{ + return security_ops->socket_sendmsg(sock, msg, size); +} + +static inline int security_socket_recvmsg(struct socket * sock, + struct msghdr * msg, int size, + int flags) +{ + return security_ops->socket_recvmsg(sock, msg, size, flags); +} + +static inline int security_socket_getsockname(struct socket * sock) +{ + return security_ops->socket_getsockname(sock); +} + +static inline int security_socket_getpeername(struct socket * sock) +{ + return security_ops->socket_getpeername(sock); +} + +static inline int security_socket_getsockopt(struct socket * sock, + int level, int optname) +{ + return security_ops->socket_getsockopt(sock, level, optname); +} + +static inline int security_socket_setsockopt(struct socket * sock, + int level, int optname) +{ + return security_ops->socket_setsockopt(sock, level, optname); +} + +static inline int security_socket_shutdown(struct socket * sock, int how) +{ + return security_ops->socket_shutdown(sock, how); +} + +static inline int security_sock_rcv_skb (struct sock * sk, + struct sk_buff * skb) +{ + 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) +{ + return security_ops->socket_getpeersec(sock, optval, optlen, len); +} + +static inline int security_sk_alloc(struct sock *sk, int family, int priority) +{ + return security_ops->sk_alloc_security(sk, family, priority); +} + +static inline void security_sk_free(struct sock *sk) +{ + return security_ops->sk_free_security(sk); +} +#else /* CONFIG_SECURITY_NETWORK */ +static inline int security_unix_stream_connect(struct socket * sock, + struct socket * other, + struct sock * newsk) +{ + return 0; +} + +static inline int security_unix_may_send(struct socket * sock, + struct socket * other) +{ + return 0; +} + +static inline int security_socket_create (int family, int type, + int protocol, int kern) +{ + return 0; +} + +static inline void security_socket_post_create(struct socket * sock, + int family, + int type, + int protocol, int kern) +{ +} + +static inline int security_socket_bind(struct socket * sock, + struct sockaddr * address, + int addrlen) +{ + return 0; +} + +static inline int security_socket_connect(struct socket * sock, + struct sockaddr * address, + int addrlen) +{ + return 0; +} + +static inline int security_socket_listen(struct socket * sock, int backlog) +{ + return 0; +} + +static inline int security_socket_accept(struct socket * sock, + struct socket * newsock) +{ + return 0; +} + +static inline void security_socket_post_accept(struct socket * sock, + struct socket * newsock) +{ +} + +static inline int security_socket_sendmsg(struct socket * sock, + struct msghdr * msg, int size) +{ + return 0; +} + +static inline int security_socket_recvmsg(struct socket * sock, + struct msghdr * msg, int size, + int flags) +{ + return 0; +} + +static inline int security_socket_getsockname(struct socket * sock) +{ + return 0; +} + +static inline int security_socket_getpeername(struct socket * sock) +{ + return 0; +} + +static inline int security_socket_getsockopt(struct socket * sock, + int level, int optname) +{ + return 0; +} + +static inline int security_socket_setsockopt(struct socket * sock, + int level, int optname) +{ + return 0; +} + +static inline int security_socket_shutdown(struct socket * sock, int how) +{ + return 0; +} +static inline int security_sock_rcv_skb (struct sock * sk, + struct sk_buff * skb) +{ + return 0; +} + +static inline int security_socket_getpeersec(struct socket *sock, char __user *optval, + int __user *optlen, unsigned len) +{ + return -ENOPROTOOPT; +} + +static inline int security_sk_alloc(struct sock *sk, int family, int priority) +{ + return 0; +} + +static inline void security_sk_free(struct sock *sk) +{ +} +#endif /* CONFIG_SECURITY_NETWORK */ + +#endif /* ! __LINUX_SECURITY_H */ + |