diff options
author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
---|---|---|
committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/security/tomoyo/tomoyo.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/security/tomoyo/tomoyo.c')
-rw-r--r-- | ANDROID_3.4.5/security/tomoyo/tomoyo.c | 560 |
1 files changed, 0 insertions, 560 deletions
diff --git a/ANDROID_3.4.5/security/tomoyo/tomoyo.c b/ANDROID_3.4.5/security/tomoyo/tomoyo.c deleted file mode 100644 index 620d37c1..00000000 --- a/ANDROID_3.4.5/security/tomoyo/tomoyo.c +++ /dev/null @@ -1,560 +0,0 @@ -/* - * security/tomoyo/tomoyo.c - * - * Copyright (C) 2005-2011 NTT DATA CORPORATION - */ - -#include <linux/security.h> -#include "common.h" - -/** - * tomoyo_cred_alloc_blank - Target for security_cred_alloc_blank(). - * - * @new: Pointer to "struct cred". - * @gfp: Memory allocation flags. - * - * Returns 0. - */ -static int tomoyo_cred_alloc_blank(struct cred *new, gfp_t gfp) -{ - new->security = NULL; - return 0; -} - -/** - * tomoyo_cred_prepare - Target for security_prepare_creds(). - * - * @new: Pointer to "struct cred". - * @old: Pointer to "struct cred". - * @gfp: Memory allocation flags. - * - * Returns 0. - */ -static int tomoyo_cred_prepare(struct cred *new, const struct cred *old, - gfp_t gfp) -{ - struct tomoyo_domain_info *domain = old->security; - new->security = domain; - if (domain) - atomic_inc(&domain->users); - return 0; -} - -/** - * tomoyo_cred_transfer - Target for security_transfer_creds(). - * - * @new: Pointer to "struct cred". - * @old: Pointer to "struct cred". - */ -static void tomoyo_cred_transfer(struct cred *new, const struct cred *old) -{ - tomoyo_cred_prepare(new, old, 0); -} - -/** - * tomoyo_cred_free - Target for security_cred_free(). - * - * @cred: Pointer to "struct cred". - */ -static void tomoyo_cred_free(struct cred *cred) -{ - struct tomoyo_domain_info *domain = cred->security; - if (domain) - atomic_dec(&domain->users); -} - -/** - * tomoyo_bprm_set_creds - Target for security_bprm_set_creds(). - * - * @bprm: Pointer to "struct linux_binprm". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_bprm_set_creds(struct linux_binprm *bprm) -{ - int rc; - - rc = cap_bprm_set_creds(bprm); - if (rc) - return rc; - - /* - * Do only if this function is called for the first time of an execve - * operation. - */ - if (bprm->cred_prepared) - return 0; -#ifndef CONFIG_SECURITY_TOMOYO_OMIT_USERSPACE_LOADER - /* - * Load policy if /sbin/tomoyo-init exists and /sbin/init is requested - * for the first time. - */ - if (!tomoyo_policy_loaded) - tomoyo_load_policy(bprm->filename); -#endif - /* - * Release reference to "struct tomoyo_domain_info" stored inside - * "bprm->cred->security". New reference to "struct tomoyo_domain_info" - * stored inside "bprm->cred->security" will be acquired later inside - * tomoyo_find_next_domain(). - */ - atomic_dec(&((struct tomoyo_domain_info *) - bprm->cred->security)->users); - /* - * Tell tomoyo_bprm_check_security() is called for the first time of an - * execve operation. - */ - bprm->cred->security = NULL; - return 0; -} - -/** - * tomoyo_bprm_check_security - Target for security_bprm_check(). - * - * @bprm: Pointer to "struct linux_binprm". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_bprm_check_security(struct linux_binprm *bprm) -{ - struct tomoyo_domain_info *domain = bprm->cred->security; - - /* - * Execute permission is checked against pathname passed to do_execve() - * using current domain. - */ - if (!domain) { - const int idx = tomoyo_read_lock(); - const int err = tomoyo_find_next_domain(bprm); - tomoyo_read_unlock(idx); - return err; - } - /* - * Read permission is checked against interpreters using next domain. - */ - return tomoyo_check_open_permission(domain, &bprm->file->f_path, - O_RDONLY); -} - -/** - * tomoyo_inode_getattr - Target for security_inode_getattr(). - * - * @mnt: Pointer to "struct vfsmount". - * @dentry: Pointer to "struct dentry". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) -{ - struct path path = { mnt, dentry }; - return tomoyo_path_perm(TOMOYO_TYPE_GETATTR, &path, NULL); -} - -/** - * tomoyo_path_truncate - Target for security_path_truncate(). - * - * @path: Pointer to "struct path". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_truncate(struct path *path) -{ - return tomoyo_path_perm(TOMOYO_TYPE_TRUNCATE, path, NULL); -} - -/** - * tomoyo_path_unlink - Target for security_path_unlink(). - * - * @parent: Pointer to "struct path". - * @dentry: Pointer to "struct dentry". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_unlink(struct path *parent, struct dentry *dentry) -{ - struct path path = { parent->mnt, dentry }; - return tomoyo_path_perm(TOMOYO_TYPE_UNLINK, &path, NULL); -} - -/** - * tomoyo_path_mkdir - Target for security_path_mkdir(). - * - * @parent: Pointer to "struct path". - * @dentry: Pointer to "struct dentry". - * @mode: DAC permission mode. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_mkdir(struct path *parent, struct dentry *dentry, - umode_t mode) -{ - struct path path = { parent->mnt, dentry }; - return tomoyo_path_number_perm(TOMOYO_TYPE_MKDIR, &path, - mode & S_IALLUGO); -} - -/** - * tomoyo_path_rmdir - Target for security_path_rmdir(). - * - * @parent: Pointer to "struct path". - * @dentry: Pointer to "struct dentry". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_rmdir(struct path *parent, struct dentry *dentry) -{ - struct path path = { parent->mnt, dentry }; - return tomoyo_path_perm(TOMOYO_TYPE_RMDIR, &path, NULL); -} - -/** - * tomoyo_path_symlink - Target for security_path_symlink(). - * - * @parent: Pointer to "struct path". - * @dentry: Pointer to "struct dentry". - * @old_name: Symlink's content. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_symlink(struct path *parent, struct dentry *dentry, - const char *old_name) -{ - struct path path = { parent->mnt, dentry }; - return tomoyo_path_perm(TOMOYO_TYPE_SYMLINK, &path, old_name); -} - -/** - * tomoyo_path_mknod - Target for security_path_mknod(). - * - * @parent: Pointer to "struct path". - * @dentry: Pointer to "struct dentry". - * @mode: DAC permission mode. - * @dev: Device attributes. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_mknod(struct path *parent, struct dentry *dentry, - umode_t mode, unsigned int dev) -{ - struct path path = { parent->mnt, dentry }; - int type = TOMOYO_TYPE_CREATE; - const unsigned int perm = mode & S_IALLUGO; - - switch (mode & S_IFMT) { - case S_IFCHR: - type = TOMOYO_TYPE_MKCHAR; - break; - case S_IFBLK: - type = TOMOYO_TYPE_MKBLOCK; - break; - default: - goto no_dev; - } - return tomoyo_mkdev_perm(type, &path, perm, dev); - no_dev: - switch (mode & S_IFMT) { - case S_IFIFO: - type = TOMOYO_TYPE_MKFIFO; - break; - case S_IFSOCK: - type = TOMOYO_TYPE_MKSOCK; - break; - } - return tomoyo_path_number_perm(type, &path, perm); -} - -/** - * tomoyo_path_link - Target for security_path_link(). - * - * @old_dentry: Pointer to "struct dentry". - * @new_dir: Pointer to "struct path". - * @new_dentry: Pointer to "struct dentry". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_link(struct dentry *old_dentry, struct path *new_dir, - struct dentry *new_dentry) -{ - struct path path1 = { new_dir->mnt, old_dentry }; - struct path path2 = { new_dir->mnt, new_dentry }; - return tomoyo_path2_perm(TOMOYO_TYPE_LINK, &path1, &path2); -} - -/** - * tomoyo_path_rename - Target for security_path_rename(). - * - * @old_parent: Pointer to "struct path". - * @old_dentry: Pointer to "struct dentry". - * @new_parent: Pointer to "struct path". - * @new_dentry: Pointer to "struct dentry". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_rename(struct path *old_parent, - struct dentry *old_dentry, - struct path *new_parent, - struct dentry *new_dentry) -{ - struct path path1 = { old_parent->mnt, old_dentry }; - struct path path2 = { new_parent->mnt, new_dentry }; - return tomoyo_path2_perm(TOMOYO_TYPE_RENAME, &path1, &path2); -} - -/** - * tomoyo_file_fcntl - Target for security_file_fcntl(). - * - * @file: Pointer to "struct file". - * @cmd: Command for fcntl(). - * @arg: Argument for @cmd. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_file_fcntl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - if (!(cmd == F_SETFL && ((arg ^ file->f_flags) & O_APPEND))) - return 0; - return tomoyo_check_open_permission(tomoyo_domain(), &file->f_path, - O_WRONLY | (arg & O_APPEND)); -} - -/** - * tomoyo_dentry_open - Target for security_dentry_open(). - * - * @f: Pointer to "struct file". - * @cred: Pointer to "struct cred". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_dentry_open(struct file *f, const struct cred *cred) -{ - int flags = f->f_flags; - /* Don't check read permission here if called from do_execve(). */ - if (current->in_execve) - return 0; - return tomoyo_check_open_permission(tomoyo_domain(), &f->f_path, flags); -} - -/** - * tomoyo_file_ioctl - Target for security_file_ioctl(). - * - * @file: Pointer to "struct file". - * @cmd: Command for ioctl(). - * @arg: Argument for @cmd. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_file_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - return tomoyo_path_number_perm(TOMOYO_TYPE_IOCTL, &file->f_path, cmd); -} - -/** - * tomoyo_path_chmod - Target for security_path_chmod(). - * - * @path: Pointer to "struct path". - * @mode: DAC permission mode. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_chmod(struct path *path, umode_t mode) -{ - return tomoyo_path_number_perm(TOMOYO_TYPE_CHMOD, path, - mode & S_IALLUGO); -} - -/** - * tomoyo_path_chown - Target for security_path_chown(). - * - * @path: Pointer to "struct path". - * @uid: Owner ID. - * @gid: Group ID. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_chown(struct path *path, uid_t uid, gid_t gid) -{ - int error = 0; - if (uid != (uid_t) -1) - error = tomoyo_path_number_perm(TOMOYO_TYPE_CHOWN, path, uid); - if (!error && gid != (gid_t) -1) - error = tomoyo_path_number_perm(TOMOYO_TYPE_CHGRP, path, gid); - return error; -} - -/** - * tomoyo_path_chroot - Target for security_path_chroot(). - * - * @path: Pointer to "struct path". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_path_chroot(struct path *path) -{ - return tomoyo_path_perm(TOMOYO_TYPE_CHROOT, path, NULL); -} - -/** - * tomoyo_sb_mount - Target for security_sb_mount(). - * - * @dev_name: Name of device file. Maybe NULL. - * @path: Pointer to "struct path". - * @type: Name of filesystem type. Maybe NULL. - * @flags: Mount options. - * @data: Optional data. Maybe NULL. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_sb_mount(char *dev_name, struct path *path, - char *type, unsigned long flags, void *data) -{ - return tomoyo_mount_permission(dev_name, path, type, flags, data); -} - -/** - * tomoyo_sb_umount - Target for security_sb_umount(). - * - * @mnt: Pointer to "struct vfsmount". - * @flags: Unmount options. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_sb_umount(struct vfsmount *mnt, int flags) -{ - struct path path = { mnt, mnt->mnt_root }; - return tomoyo_path_perm(TOMOYO_TYPE_UMOUNT, &path, NULL); -} - -/** - * tomoyo_sb_pivotroot - Target for security_sb_pivotroot(). - * - * @old_path: Pointer to "struct path". - * @new_path: Pointer to "struct path". - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_sb_pivotroot(struct path *old_path, struct path *new_path) -{ - return tomoyo_path2_perm(TOMOYO_TYPE_PIVOT_ROOT, new_path, old_path); -} - -/** - * tomoyo_socket_listen - Check permission for listen(). - * - * @sock: Pointer to "struct socket". - * @backlog: Backlog parameter. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_socket_listen(struct socket *sock, int backlog) -{ - return tomoyo_socket_listen_permission(sock); -} - -/** - * tomoyo_socket_connect - Check permission for connect(). - * - * @sock: Pointer to "struct socket". - * @addr: Pointer to "struct sockaddr". - * @addr_len: Size of @addr. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_socket_connect(struct socket *sock, struct sockaddr *addr, - int addr_len) -{ - return tomoyo_socket_connect_permission(sock, addr, addr_len); -} - -/** - * tomoyo_socket_bind - Check permission for bind(). - * - * @sock: Pointer to "struct socket". - * @addr: Pointer to "struct sockaddr". - * @addr_len: Size of @addr. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_socket_bind(struct socket *sock, struct sockaddr *addr, - int addr_len) -{ - return tomoyo_socket_bind_permission(sock, addr, addr_len); -} - -/** - * tomoyo_socket_sendmsg - Check permission for sendmsg(). - * - * @sock: Pointer to "struct socket". - * @msg: Pointer to "struct msghdr". - * @size: Size of message. - * - * Returns 0 on success, negative value otherwise. - */ -static int tomoyo_socket_sendmsg(struct socket *sock, struct msghdr *msg, - int size) -{ - return tomoyo_socket_sendmsg_permission(sock, msg, size); -} - -/* - * tomoyo_security_ops is a "struct security_operations" which is used for - * registering TOMOYO. - */ -static struct security_operations tomoyo_security_ops = { - .name = "tomoyo", - .cred_alloc_blank = tomoyo_cred_alloc_blank, - .cred_prepare = tomoyo_cred_prepare, - .cred_transfer = tomoyo_cred_transfer, - .cred_free = tomoyo_cred_free, - .bprm_set_creds = tomoyo_bprm_set_creds, - .bprm_check_security = tomoyo_bprm_check_security, - .file_fcntl = tomoyo_file_fcntl, - .dentry_open = tomoyo_dentry_open, - .path_truncate = tomoyo_path_truncate, - .path_unlink = tomoyo_path_unlink, - .path_mkdir = tomoyo_path_mkdir, - .path_rmdir = tomoyo_path_rmdir, - .path_symlink = tomoyo_path_symlink, - .path_mknod = tomoyo_path_mknod, - .path_link = tomoyo_path_link, - .path_rename = tomoyo_path_rename, - .inode_getattr = tomoyo_inode_getattr, - .file_ioctl = tomoyo_file_ioctl, - .path_chmod = tomoyo_path_chmod, - .path_chown = tomoyo_path_chown, - .path_chroot = tomoyo_path_chroot, - .sb_mount = tomoyo_sb_mount, - .sb_umount = tomoyo_sb_umount, - .sb_pivotroot = tomoyo_sb_pivotroot, - .socket_bind = tomoyo_socket_bind, - .socket_connect = tomoyo_socket_connect, - .socket_listen = tomoyo_socket_listen, - .socket_sendmsg = tomoyo_socket_sendmsg, -}; - -/* Lock for GC. */ -struct srcu_struct tomoyo_ss; - -/** - * tomoyo_init - Register TOMOYO Linux as a LSM module. - * - * Returns 0. - */ -static int __init tomoyo_init(void) -{ - struct cred *cred = (struct cred *) current_cred(); - - if (!security_module_enable(&tomoyo_security_ops)) - return 0; - /* register ourselves with the security framework */ - if (register_security(&tomoyo_security_ops) || - init_srcu_struct(&tomoyo_ss)) - panic("Failure registering TOMOYO Linux"); - printk(KERN_INFO "TOMOYO Linux initialized\n"); - cred->security = &tomoyo_kernel_domain; - tomoyo_mm_init(); - return 0; -} - -security_initcall(tomoyo_init); |