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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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79af73079d
Add security hooks to the binder and implement the hooks for SELinux. The security hooks enable security modules such as SELinux to implement controls over binder IPC. The security hooks include support for controlling what process can become the binder context manager (binder_set_context_mgr), controlling the ability of a process to invoke a binder transaction/IPC to another process (binder_transaction), controlling the ability of a process to transfer a binder reference to another process (binder_transfer_binder), and controlling the ability of a process to transfer an open file to another process (binder_transfer_file). These hooks have been included in the Android kernel trees since Android 4.3. (Updated to reflect upstream relocation and changes to the binder driver, changes to the LSM audit data structures, coding style cleanups, and to add inline documentation for the hooks). Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Nick Kralevich <nnk@google.com> Acked-by: Jeffrey Vander Stoep <jeffv@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
158 lines
5.5 KiB
C
158 lines
5.5 KiB
C
#define COMMON_FILE_SOCK_PERMS "ioctl", "read", "write", "create", \
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"getattr", "setattr", "lock", "relabelfrom", "relabelto", "append"
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#define COMMON_FILE_PERMS COMMON_FILE_SOCK_PERMS, "unlink", "link", \
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"rename", "execute", "swapon", "quotaon", "mounton", "audit_access", \
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"open", "execmod"
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#define COMMON_SOCK_PERMS COMMON_FILE_SOCK_PERMS, "bind", "connect", \
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"listen", "accept", "getopt", "setopt", "shutdown", "recvfrom", \
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"sendto", "recv_msg", "send_msg", "name_bind"
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#define COMMON_IPC_PERMS "create", "destroy", "getattr", "setattr", "read", \
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"write", "associate", "unix_read", "unix_write"
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/*
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* Note: The name for any socket class should be suffixed by "socket",
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* and doesn't contain more than one substr of "socket".
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*/
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struct security_class_mapping secclass_map[] = {
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{ "security",
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{ "compute_av", "compute_create", "compute_member",
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"check_context", "load_policy", "compute_relabel",
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"compute_user", "setenforce", "setbool", "setsecparam",
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"setcheckreqprot", "read_policy", NULL } },
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{ "process",
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{ "fork", "transition", "sigchld", "sigkill",
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"sigstop", "signull", "signal", "ptrace", "getsched", "setsched",
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"getsession", "getpgid", "setpgid", "getcap", "setcap", "share",
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"getattr", "setexec", "setfscreate", "noatsecure", "siginh",
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"setrlimit", "rlimitinh", "dyntransition", "setcurrent",
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"execmem", "execstack", "execheap", "setkeycreate",
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"setsockcreate", NULL } },
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{ "system",
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{ "ipc_info", "syslog_read", "syslog_mod",
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"syslog_console", "module_request", NULL } },
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{ "capability",
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{ "chown", "dac_override", "dac_read_search",
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"fowner", "fsetid", "kill", "setgid", "setuid", "setpcap",
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"linux_immutable", "net_bind_service", "net_broadcast",
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"net_admin", "net_raw", "ipc_lock", "ipc_owner", "sys_module",
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"sys_rawio", "sys_chroot", "sys_ptrace", "sys_pacct", "sys_admin",
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"sys_boot", "sys_nice", "sys_resource", "sys_time",
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"sys_tty_config", "mknod", "lease", "audit_write",
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"audit_control", "setfcap", NULL } },
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{ "filesystem",
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{ "mount", "remount", "unmount", "getattr",
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"relabelfrom", "relabelto", "transition", "associate", "quotamod",
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"quotaget", NULL } },
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{ "file",
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{ COMMON_FILE_PERMS,
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"execute_no_trans", "entrypoint", NULL } },
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{ "dir",
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{ COMMON_FILE_PERMS, "add_name", "remove_name",
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"reparent", "search", "rmdir", NULL } },
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{ "fd", { "use", NULL } },
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{ "lnk_file",
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{ COMMON_FILE_PERMS, NULL } },
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{ "chr_file",
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{ COMMON_FILE_PERMS, NULL } },
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{ "blk_file",
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{ COMMON_FILE_PERMS, NULL } },
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{ "sock_file",
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{ COMMON_FILE_PERMS, NULL } },
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{ "fifo_file",
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{ COMMON_FILE_PERMS, NULL } },
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{ "socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "tcp_socket",
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{ COMMON_SOCK_PERMS,
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"connectto", "newconn", "acceptfrom", "node_bind", "name_connect",
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NULL } },
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{ "udp_socket",
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{ COMMON_SOCK_PERMS,
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"node_bind", NULL } },
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{ "rawip_socket",
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{ COMMON_SOCK_PERMS,
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"node_bind", NULL } },
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{ "node",
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{ "tcp_recv", "tcp_send", "udp_recv", "udp_send",
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"rawip_recv", "rawip_send", "enforce_dest",
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"dccp_recv", "dccp_send", "recvfrom", "sendto", NULL } },
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{ "netif",
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{ "tcp_recv", "tcp_send", "udp_recv", "udp_send",
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"rawip_recv", "rawip_send", "dccp_recv", "dccp_send",
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"ingress", "egress", NULL } },
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{ "netlink_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "packet_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "key_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "unix_stream_socket",
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{ COMMON_SOCK_PERMS, "connectto", "newconn", "acceptfrom", NULL
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} },
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{ "unix_dgram_socket",
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{ COMMON_SOCK_PERMS, NULL
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} },
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{ "sem",
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{ COMMON_IPC_PERMS, NULL } },
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{ "msg", { "send", "receive", NULL } },
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{ "msgq",
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{ COMMON_IPC_PERMS, "enqueue", NULL } },
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{ "shm",
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{ COMMON_IPC_PERMS, "lock", NULL } },
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{ "ipc",
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{ COMMON_IPC_PERMS, NULL } },
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{ "netlink_route_socket",
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{ COMMON_SOCK_PERMS,
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"nlmsg_read", "nlmsg_write", NULL } },
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{ "netlink_firewall_socket",
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{ COMMON_SOCK_PERMS,
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"nlmsg_read", "nlmsg_write", NULL } },
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{ "netlink_tcpdiag_socket",
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{ COMMON_SOCK_PERMS,
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"nlmsg_read", "nlmsg_write", NULL } },
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{ "netlink_nflog_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "netlink_xfrm_socket",
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{ COMMON_SOCK_PERMS,
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"nlmsg_read", "nlmsg_write", NULL } },
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{ "netlink_selinux_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "netlink_audit_socket",
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{ COMMON_SOCK_PERMS,
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"nlmsg_read", "nlmsg_write", "nlmsg_relay", "nlmsg_readpriv",
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"nlmsg_tty_audit", NULL } },
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{ "netlink_ip6fw_socket",
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{ COMMON_SOCK_PERMS,
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"nlmsg_read", "nlmsg_write", NULL } },
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{ "netlink_dnrt_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "association",
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{ "sendto", "recvfrom", "setcontext", "polmatch", NULL } },
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{ "netlink_kobject_uevent_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "appletalk_socket",
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{ COMMON_SOCK_PERMS, NULL } },
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{ "packet",
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{ "send", "recv", "relabelto", "forward_in", "forward_out", NULL } },
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{ "key",
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{ "view", "read", "write", "search", "link", "setattr", "create",
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NULL } },
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{ "dccp_socket",
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{ COMMON_SOCK_PERMS,
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"node_bind", "name_connect", NULL } },
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{ "memprotect", { "mmap_zero", NULL } },
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{ "peer", { "recv", NULL } },
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{ "capability2",
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{ "mac_override", "mac_admin", "syslog", "wake_alarm", "block_suspend",
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"audit_read", NULL } },
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{ "kernel_service", { "use_as_override", "create_files_as", NULL } },
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{ "tun_socket",
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{ COMMON_SOCK_PERMS, "attach_queue", NULL } },
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{ "binder", { "impersonate", "call", "set_context_mgr", "transfer",
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NULL } },
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{ NULL }
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};
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