#include "reiserfs.h" #include #include #include #include #include #include "xattr.h" #include #include static int security_get(const struct xattr_handler *handler, struct dentry *unused, struct inode *inode, const char *name, void *buffer, size_t size) { if (IS_PRIVATE(inode)) return -EPERM; return reiserfs_xattr_get(inode, xattr_full_name(handler, name), buffer, size); } static int security_set(const struct xattr_handler *handler, struct dentry *unused, struct inode *inode, const char *name, const void *buffer, size_t size, int flags) { if (IS_PRIVATE(inode)) return -EPERM; return reiserfs_xattr_set(inode, xattr_full_name(handler, name), buffer, size, flags); } static bool security_list(struct dentry *dentry) { return !IS_PRIVATE(d_inode(dentry)); } /* Initializes the security context for a new inode and returns the number * of blocks needed for the transaction. If successful, reiserfs_security * must be released using reiserfs_security_free when the caller is done. */ int reiserfs_security_init(struct inode *dir, struct inode *inode, const struct qstr *qstr, struct reiserfs_security_handle *sec) { int blocks = 0; int error; sec->name = NULL; /* Don't add selinux attributes on xattrs - they'll never get used */ if (IS_PRIVATE(dir)) return 0; error = security_old_inode_init_security(inode, dir, qstr, &sec->name, &sec->value, &sec->length); if (error) { if (error == -EOPNOTSUPP) error = 0; sec->name = NULL; sec->value = NULL; sec->length = 0; return error; } if (sec->length && reiserfs_xattrs_initialized(inode->i_sb)) { blocks = reiserfs_xattr_jcreate_nblocks(inode) + reiserfs_xattr_nblocks(inode, sec->length); /* We don't want to count the directories twice if we have * a default ACL. */ REISERFS_I(inode)->i_flags |= i_has_xattr_dir; } return blocks; } int reiserfs_security_write(struct reiserfs_transaction_handle *th, struct inode *inode, struct reiserfs_security_handle *sec) { int error; if (strlen(sec->name) < sizeof(XATTR_SECURITY_PREFIX)) return -EINVAL; error = reiserfs_xattr_set_handle(th, inode, sec->name, sec->value, sec->length, XATTR_CREATE); if (error == -ENODATA || error == -EOPNOTSUPP) error = 0; return error; } void reiserfs_security_free(struct reiserfs_security_handle *sec) { kfree(sec->name); kfree(sec->value); sec->name = NULL; sec->value = NULL; } const struct xattr_handler reiserfs_xattr_security_handler = { .prefix = XATTR_SECURITY_PREFIX, .get = security_get, .set = security_set, .list = security_list, }; >

path: root/net/bluetooth/cmtp

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