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linux/security/selinux/include/classmap.h
Linus Torvalds 59c017ce9e selinux/stable-6.15 PR 20250323 
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Merge tag 'selinux-pr-20250323' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux updates from Paul Moore:

 - Add additional SELinux access controls for kernel file reads/loads

   The SELinux kernel file read/load access controls were never updated
   beyond the initial kernel module support, this pull request adds
   support for firmware, kexec, policies, and x.509 certificates.

 - Add support for wildcards in network interface names

   There are a number of userspace tools which auto-generate network
   interface names using some pattern of <XXXX>-<NN> where <XXXX> is a
   fixed string, e.g. "podman", and <NN> is a increasing counter.
   Supporting wildcards in the SELinux policy for network interfaces
   simplifies the policy associted with these interfaces.

 - Fix a potential problem in the kernel read file SELinux code

   SELinux should always check the file label in the
   security_kernel_read_file() LSM hook, regardless of if the file is
   being read in chunks. Unfortunately, the existing code only
   considered the file label on the first chunk; this pull request fixes
   this problem.

   There is more detail in the individual commit, but thankfully the
   existing code didn't expose a bug due to multi-stage reads only
   taking place in one driver, and that driver loading a file type that
   isn't targeted by the SELinux policy.

 - Fix the subshell error handling in the example policy loader

   Minor fix to SELinux example policy loader in scripts/selinux due to
   an undesired interaction with subshells and errexit.

* tag 'selinux-pr-20250323' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: get netif_wildcard policycap from policy instead of cache
  selinux: support wildcard network interface names
  selinux: Chain up tool resolving errors in install_policy.sh
  selinux: add permission checks for loading other kinds of kernel files
  selinux: always check the file label in selinux_kernel_read_file()
  selinux: fix spelling error
2025-03-25 15:52:32 -07:00

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/* SPDX-License-Identifier: GPL-2.0 */
#define COMMON_FILE_SOCK_PERMS \
"ioctl", "read", "write", "create", "getattr", "setattr", "lock", \
"relabelfrom", "relabelto", "append", "map"
#define COMMON_FILE_PERMS \
COMMON_FILE_SOCK_PERMS, "unlink", "link", "rename", "execute", \
"quotaon", "mounton", "audit_access", "open", "execmod", \
"watch", "watch_mount", "watch_sb", "watch_with_perm", \
"watch_reads", "watch_mountns"
#define COMMON_SOCK_PERMS \
COMMON_FILE_SOCK_PERMS, "bind", "connect", "listen", "accept", \
"getopt", "setopt", "shutdown", "recvfrom", "sendto", \
"name_bind"
#define COMMON_IPC_PERMS \
"create", "destroy", "getattr", "setattr", "read", "write", \
"associate", "unix_read", "unix_write"
#define COMMON_CAP_PERMS \
"chown", "dac_override", "dac_read_search", "fowner", "fsetid", \
"kill", "setgid", "setuid", "setpcap", "linux_immutable", \
"net_bind_service", "net_broadcast", "net_admin", "net_raw", \
"ipc_lock", "ipc_owner", "sys_module", "sys_rawio", \
"sys_chroot", "sys_ptrace", "sys_pacct", "sys_admin", \
"sys_boot", "sys_nice", "sys_resource", "sys_time", \
"sys_tty_config", "mknod", "lease", "audit_write", \
"audit_control", "setfcap"
#define COMMON_CAP2_PERMS \
"mac_override", "mac_admin", "syslog", "wake_alarm", "block_suspend", \
"audit_read", "perfmon", "bpf", "checkpoint_restore"
#ifdef __KERNEL__ /* avoid this check when building host programs */
#include <linux/capability.h>
#if CAP_LAST_CAP > CAP_CHECKPOINT_RESTORE
#error New capability defined, please update COMMON_CAP2_PERMS.
#endif
#endif
/*
* Note: The name for any socket class should be suffixed by "socket",
* and doesn't contain more than one substr of "socket".
*/
const struct security_class_mapping secclass_map[] = {
{ "security",
{ "compute_av", "compute_create", "compute_member", "check_context",
"load_policy", "compute_relabel", "compute_user", "setenforce",
"setbool", "setsecparam", "setcheckreqprot", "read_policy",
"validate_trans", NULL } },
{ "process",
{ "fork", "transition", "sigchld", "sigkill",
"sigstop", "signull", "signal", "ptrace",
"getsched", "setsched", "getsession", "getpgid",
"setpgid", "getcap", "setcap", "share",
"getattr", "setexec", "setfscreate", "noatsecure",
"siginh", "setrlimit", "rlimitinh", "dyntransition",
"setcurrent", "execmem", "execstack", "execheap",
"setkeycreate", "setsockcreate", "getrlimit", NULL } },
{ "process2", { "nnp_transition", "nosuid_transition", NULL } },
{ "system",
{ "ipc_info", "syslog_read", "syslog_mod", "syslog_console",
"module_request", "module_load", "firmware_load",
"kexec_image_load", "kexec_initramfs_load", "policy_load",
"x509_certificate_load", NULL } },
{ "capability", { COMMON_CAP_PERMS, NULL } },
{ "filesystem",
{ "mount", "remount", "unmount", "getattr", "relabelfrom",
"relabelto", "associate", "quotamod", "quotaget", "watch", NULL } },
{ "file",
{ COMMON_FILE_PERMS, "execute_no_trans", "entrypoint", NULL } },
{ "dir",
{ COMMON_FILE_PERMS, "add_name", "remove_name", "reparent", "search",
"rmdir", NULL } },
{ "fd", { "use", NULL } },
{ "lnk_file", { COMMON_FILE_PERMS, NULL } },
{ "chr_file", { COMMON_FILE_PERMS, NULL } },
{ "blk_file", { COMMON_FILE_PERMS, NULL } },
{ "sock_file", { COMMON_FILE_PERMS, NULL } },
{ "fifo_file", { COMMON_FILE_PERMS, NULL } },
{ "socket", { COMMON_SOCK_PERMS, NULL } },
{ "tcp_socket",
{ COMMON_SOCK_PERMS, "node_bind", "name_connect", NULL } },
{ "udp_socket", { COMMON_SOCK_PERMS, "node_bind", NULL } },
{ "rawip_socket", { COMMON_SOCK_PERMS, "node_bind", NULL } },
{ "node", { "recvfrom", "sendto", NULL } },
{ "netif", { "ingress", "egress", NULL } },
{ "netlink_socket", { COMMON_SOCK_PERMS, NULL } },
{ "packet_socket", { COMMON_SOCK_PERMS, NULL } },
{ "key_socket", { COMMON_SOCK_PERMS, NULL } },
{ "unix_stream_socket", { COMMON_SOCK_PERMS, "connectto", NULL } },
{ "unix_dgram_socket", { COMMON_SOCK_PERMS, NULL } },
{ "sem", { COMMON_IPC_PERMS, NULL } },
{ "msg", { "send", "receive", NULL } },
{ "msgq", { COMMON_IPC_PERMS, "enqueue", NULL } },
{ "shm", { COMMON_IPC_PERMS, "lock", NULL } },
{ "ipc", { COMMON_IPC_PERMS, NULL } },
{ "netlink_route_socket",
{ COMMON_SOCK_PERMS, "nlmsg_read", "nlmsg_write", "nlmsg", NULL } },
{ "netlink_tcpdiag_socket",
{ COMMON_SOCK_PERMS, "nlmsg_read", "nlmsg_write", "nlmsg", NULL } },
{ "netlink_nflog_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_xfrm_socket",
{ COMMON_SOCK_PERMS, "nlmsg_read", "nlmsg_write", "nlmsg", NULL } },
{ "netlink_selinux_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_iscsi_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_audit_socket",
{ COMMON_SOCK_PERMS, "nlmsg_read", "nlmsg_write", "nlmsg_relay",
"nlmsg_readpriv", "nlmsg_tty_audit", "nlmsg", NULL } },
{ "netlink_fib_lookup_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_connector_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_netfilter_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_dnrt_socket", { COMMON_SOCK_PERMS, NULL } },
{ "association",
{ "sendto", "recvfrom", "setcontext", "polmatch", NULL } },
{ "netlink_kobject_uevent_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_generic_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_scsitransport_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_rdma_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netlink_crypto_socket", { COMMON_SOCK_PERMS, NULL } },
{ "appletalk_socket", { COMMON_SOCK_PERMS, NULL } },
{ "packet",
{ "send", "recv", "relabelto", "forward_in", "forward_out", NULL } },
{ "key",
{ "view", "read", "write", "search", "link", "setattr", "create",
NULL } },
{ "dccp_socket",
{ COMMON_SOCK_PERMS, "node_bind", "name_connect", NULL } },
{ "memprotect", { "mmap_zero", NULL } },
{ "peer", { "recv", NULL } },
{ "capability2", { COMMON_CAP2_PERMS, NULL } },
{ "kernel_service", { "use_as_override", "create_files_as", NULL } },
{ "tun_socket", { COMMON_SOCK_PERMS, "attach_queue", NULL } },
{ "binder",
{ "impersonate", "call", "set_context_mgr", "transfer", NULL } },
{ "cap_userns", { COMMON_CAP_PERMS, NULL } },
{ "cap2_userns", { COMMON_CAP2_PERMS, NULL } },
{ "sctp_socket",
{ COMMON_SOCK_PERMS, "node_bind", "name_connect", "association",
NULL } },
{ "icmp_socket", { COMMON_SOCK_PERMS, "node_bind", NULL } },
{ "ax25_socket", { COMMON_SOCK_PERMS, NULL } },
{ "ipx_socket", { COMMON_SOCK_PERMS, NULL } },
{ "netrom_socket", { COMMON_SOCK_PERMS, NULL } },
{ "atmpvc_socket", { COMMON_SOCK_PERMS, NULL } },
{ "x25_socket", { COMMON_SOCK_PERMS, NULL } },
{ "rose_socket", { COMMON_SOCK_PERMS, NULL } },
{ "decnet_socket", { COMMON_SOCK_PERMS, NULL } },
{ "atmsvc_socket", { COMMON_SOCK_PERMS, NULL } },
{ "rds_socket", { COMMON_SOCK_PERMS, NULL } },
{ "irda_socket", { COMMON_SOCK_PERMS, NULL } },
{ "pppox_socket", { COMMON_SOCK_PERMS, NULL } },
{ "llc_socket", { COMMON_SOCK_PERMS, NULL } },
{ "can_socket", { COMMON_SOCK_PERMS, NULL } },
{ "tipc_socket", { COMMON_SOCK_PERMS, NULL } },
{ "bluetooth_socket", { COMMON_SOCK_PERMS, NULL } },
{ "iucv_socket", { COMMON_SOCK_PERMS, NULL } },
{ "rxrpc_socket", { COMMON_SOCK_PERMS, NULL } },
{ "isdn_socket", { COMMON_SOCK_PERMS, NULL } },
{ "phonet_socket", { COMMON_SOCK_PERMS, NULL } },
{ "ieee802154_socket", { COMMON_SOCK_PERMS, NULL } },
{ "caif_socket", { COMMON_SOCK_PERMS, NULL } },
{ "alg_socket", { COMMON_SOCK_PERMS, NULL } },
{ "nfc_socket", { COMMON_SOCK_PERMS, NULL } },
{ "vsock_socket", { COMMON_SOCK_PERMS, NULL } },
{ "kcm_socket", { COMMON_SOCK_PERMS, NULL } },
{ "qipcrtr_socket", { COMMON_SOCK_PERMS, NULL } },
{ "smc_socket", { COMMON_SOCK_PERMS, NULL } },
{ "infiniband_pkey", { "access", NULL } },
{ "infiniband_endport", { "manage_subnet", NULL } },
{ "bpf",
{ "map_create", "map_read", "map_write", "prog_load", "prog_run",
NULL } },
{ "xdp_socket", { COMMON_SOCK_PERMS, NULL } },
{ "mctp_socket", { COMMON_SOCK_PERMS, NULL } },
{ "perf_event",
{ "open", "cpu", "kernel", "tracepoint", "read", "write", NULL } },
{ "anon_inode", { COMMON_FILE_PERMS, NULL } },
{ "io_uring", { "override_creds", "sqpoll", "cmd", "allowed", NULL } },
{ "user_namespace", { "create", NULL } },
/* last one */ { NULL, {} }
};
#ifdef __KERNEL__ /* avoid this check when building host programs */
#include <linux/socket.h>
#if PF_MAX > 46
#error New address family defined, please update secclass_map.
#endif
#endif
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