5 files changed, 24 insertions, 7 deletions
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index 7229c9bf6c27..2bc20135324a 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -1,8 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 
-#include <linux/capability.h>
-#include <linux/socket.h>
-
 #define COMMON_FILE_SOCK_PERMS                                            \
 	"ioctl", "read", "write", "create", "getattr", "setattr", "lock", \
 		"relabelfrom", "relabelto", "append", "map"
@@ -36,9 +33,13 @@
 	"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",
@@ -96,17 +97,17 @@ const struct security_class_mapping secclass_map[] = {
 	{ "shm", { COMMON_IPC_PERMS, "lock", NULL } },
 	{ "ipc", { COMMON_IPC_PERMS, NULL } },
 	{ "netlink_route_socket",
-	  { COMMON_SOCK_PERMS, "nlmsg_read", "nlmsg_write", NULL } },
+	  { COMMON_SOCK_PERMS, "nlmsg_read", "nlmsg_write", "nlmsg", NULL } },
 	{ "netlink_tcpdiag_socket",
-	  { COMMON_SOCK_PERMS, "nlmsg_read", "nlmsg_write", NULL } },
+	  { 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", NULL } },
+	  { 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", NULL } },
+	    "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 } },
@@ -181,6 +182,10 @@ const struct security_class_mapping secclass_map[] = {
 	{ 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
diff --git a/security/selinux/include/initial_sid_to_string.h b/security/selinux/include/initial_sid_to_string.h
index 99b353b2abb4..d7ba60b62491 100644
--- a/security/selinux/include/initial_sid_to_string.h
+++ b/security/selinux/include/initial_sid_to_string.h
@@ -1,6 +1,10 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 
+#ifdef __KERNEL__
 #include <linux/stddef.h>
+#else
+#include <stddef.h>
+#endif
 
 static const char *const initial_sid_to_string[] = {
 	NULL, /* zero placeholder, not used */
diff --git a/security/selinux/include/policycap.h b/security/selinux/include/policycap.h
index dc3674eb29c1..079679fe7254 100644
--- a/security/selinux/include/policycap.h
+++ b/security/selinux/include/policycap.h
@@ -14,6 +14,7 @@ enum {
 	POLICYDB_CAP_GENFS_SECLABEL_SYMLINKS,
 	POLICYDB_CAP_IOCTL_SKIP_CLOEXEC,
 	POLICYDB_CAP_USERSPACE_INITIAL_CONTEXT,
+	POLICYDB_CAP_NETLINK_XPERM,
 	__POLICYDB_CAP_MAX
 };
 #define POLICYDB_CAP_MAX (__POLICYDB_CAP_MAX - 1)
diff --git a/security/selinux/include/policycap_names.h b/security/selinux/include/policycap_names.h
index 2cffcc1ce851..e080827408c4 100644
--- a/security/selinux/include/policycap_names.h
+++ b/security/selinux/include/policycap_names.h
@@ -17,6 +17,7 @@ const char *const selinux_policycap_names[__POLICYDB_CAP_MAX] = {
 	"genfs_seclabel_symlinks",
 	"ioctl_skip_cloexec",
 	"userspace_initial_context",
+	"netlink_xperm",
 };
 /* clang-format on */
 
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 289bf9233f71..c7f2731abd03 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -195,6 +195,12 @@ static inline bool selinux_policycap_userspace_initial_context(void)
 		selinux_state.policycap[POLICYDB_CAP_USERSPACE_INITIAL_CONTEXT]);
 }
 
+static inline bool selinux_policycap_netlink_xperm(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_NETLINK_XPERM]);
+}
+
 struct selinux_policy_convert_data;
 
 struct selinux_load_state {