github.com/google/syzkaller@v0.0.0-20251211124644-a066d2bc4b02/sys/linux/landlock.txt (about)

     1  # Copyright 2021 syzkaller project authors. All rights reserved.
     2  # Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
     3  
     4  include <uapi/linux/landlock.h>
     5  
     6  resource fd_ruleset[fd]
     7  
     8  landlock_create_ruleset(attr ptr[in, landlock_ruleset_attr], size bytesize[attr], flags flags[landlock_create_ruleset_flags]) fd_ruleset
     9  
    10  landlock_add_rule$LANDLOCK_RULE_PATH_BENEATH(ruleset_fd fd_ruleset, rule_type const[LANDLOCK_RULE_PATH_BENEATH], rule_attr ptr[in, landlock_path_beneath_attr], flags const[0])
    11  
    12  landlock_add_rule$LANDLOCK_RULE_NET_PORT(ruleset_fd fd_ruleset, rule_type const[LANDLOCK_RULE_NET_PORT], rule_attr ptr[in, landlock_net_port_attr], flags const[0])
    13  
    14  landlock_restrict_self(ruleset_fd fd_ruleset, flags flags[landlock_restrict_self_flags])
    15  
    16  landlock_ruleset_attr {
    17  	handled_access_fs	flags[landlock_access_fs_flags, int64]
    18  	handled_access_net	flags[landlock_access_net_flags, int64]
    19  	scoped			flags[landlock_scope_flags, int64]
    20  }
    21  
    22  landlock_path_beneath_attr {
    23  	allowed_access	flags[landlock_access_fs_flags, int64]
    24  	parent_fd	fd
    25  } [packed]
    26  
    27  landlock_net_port_attr {
    28  	allowed_access	flags[landlock_access_net_flags, int64]
    29  	port		int64
    30  }
    31  
    32  # TODO(glider): remove this line once LANDLOCK_ACCESS_FS_IOCTL_DEV hits upstream.
    33  define LANDLOCK_ACCESS_FS_IOCTL_DEV	(1ULL << 15)
    34  
    35  landlock_create_ruleset_flags = LANDLOCK_CREATE_RULESET_VERSION, LANDLOCK_CREATE_RULESET_ERRATA
    36  
    37  landlock_restrict_self_flags = LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF, LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON, LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF
    38  
    39  landlock_access_fs_flags = LANDLOCK_ACCESS_FS_EXECUTE, LANDLOCK_ACCESS_FS_WRITE_FILE, LANDLOCK_ACCESS_FS_READ_FILE, LANDLOCK_ACCESS_FS_READ_DIR, LANDLOCK_ACCESS_FS_REMOVE_DIR, LANDLOCK_ACCESS_FS_REMOVE_FILE, LANDLOCK_ACCESS_FS_MAKE_CHAR, LANDLOCK_ACCESS_FS_MAKE_DIR, LANDLOCK_ACCESS_FS_MAKE_REG, LANDLOCK_ACCESS_FS_MAKE_SOCK, LANDLOCK_ACCESS_FS_MAKE_FIFO, LANDLOCK_ACCESS_FS_MAKE_BLOCK, LANDLOCK_ACCESS_FS_MAKE_SYM, LANDLOCK_ACCESS_FS_REFER, LANDLOCK_ACCESS_FS_TRUNCATE, LANDLOCK_ACCESS_FS_IOCTL_DEV
    40  
    41  landlock_access_net_flags = LANDLOCK_ACCESS_NET_BIND_TCP, LANDLOCK_ACCESS_NET_CONNECT_TCP
    42  
    43  landlock_scope_flags = LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET, LANDLOCK_SCOPE_SIGNAL