Resguardo inicial

linux-7.2.3/security/selinux/include/audit.h

@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * SELinux support for the Audit LSM hooks
+ *
+ * Author: James Morris <jmorris@redhat.com>
+ *
+ * Copyright (C) 2005 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ * Copyright (C) 2006 Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
+ * Copyright (C) 2006 IBM Corporation, Timothy R. Chavez <tinytim@us.ibm.com>
+ */
+
+#ifndef _SELINUX_AUDIT_H
+#define _SELINUX_AUDIT_H
+
+#include <linux/audit.h>
+#include <linux/types.h>
+
+/**
+ * selinux_audit_rule_avc_callback - update the audit LSM rules on AVC events.
+ * @event: the AVC event
+ *
+ * Update any audit LSM rules based on the AVC event specified in @event.
+ * Returns 0 on success, negative values otherwise.
+ */
+int selinux_audit_rule_avc_callback(u32 event);
+
+/**
+ * selinux_audit_rule_init - alloc/init an selinux audit rule structure.
+ * @field: the field this rule refers to
+ * @op: the operator the rule uses
+ * @rulestr: the text "target" of the rule
+ * @rule: pointer to the new rule structure returned via this
+ * @gfp: GFP flag used for kmalloc
+ *
+ * Returns 0 if successful, -errno if not.  On success, the rule structure
+ * will be allocated internally.  The caller must free this structure with
+ * selinux_audit_rule_free() after use.
+ */
+int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **rule,
+			    gfp_t gfp);
+
+/**
+ * selinux_audit_rule_free - free an selinux audit rule structure.
+ * @rule: pointer to the audit rule to be freed
+ *
+ * This will free all memory associated with the given rule.
+ * If @rule is NULL, no operation is performed.
+ */
+void selinux_audit_rule_free(void *rule);
+
+/**
+ * selinux_audit_rule_match - determine if a context ID matches a rule.
+ * @prop: includes the context ID to check
+ * @field: the field this rule refers to
+ * @op: the operator the rule uses
+ * @rule: pointer to the audit rule to check against
+ *
+ * Returns 1 if the context id matches the rule, 0 if it does not, and
+ * -errno on failure.
+ */
+int selinux_audit_rule_match(struct lsm_prop *prop, u32 field, u32 op,
+			     void *rule);
+
+/**
+ * selinux_audit_rule_known - check to see if rule contains selinux fields.
+ * @rule: rule to be checked
+ * Returns 1 if there are selinux fields specified in the rule, 0 otherwise.
+ */
+int selinux_audit_rule_known(struct audit_krule *rule);
+
+#endif /* _SELINUX_AUDIT_H */

linux-7.2.3/security/selinux/include/avc.h

@@ -0,0 +1,172 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Access vector cache interface for object managers.
+ *
+ * Author : Stephen Smalley, <stephen.smalley.work@gmail.com>
+ */
+
+#ifndef _SELINUX_AVC_H_
+#define _SELINUX_AVC_H_
+
+#include <linux/stddef.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/kdev_t.h>
+#include <linux/spinlock.h>
+#include <linux/init.h>
+#include <linux/audit.h>
+#include <linux/lsm_audit.h>
+#include <linux/in6.h>
+#include "flask.h"
+#include "av_permissions.h"
+#include "security.h"
+
+/*
+ * An entry in the AVC.
+ */
+struct avc_entry;
+
+struct task_struct;
+struct inode;
+struct sock;
+struct sk_buff;
+
+/*
+ * AVC statistics
+ */
+struct avc_cache_stats {
+	unsigned int lookups;
+	unsigned int misses;
+	unsigned int allocations;
+	unsigned int reclaims;
+	unsigned int frees;
+};
+
+/*
+ * We only need this data after we have decided to send an audit message.
+ */
+struct selinux_audit_data {
+	u32 ssid;
+	u32 tsid;
+	u16 tclass;
+	u32 requested;
+	u32 audited;
+	u32 denied;
+	int result;
+} __randomize_layout;
+
+/*
+ * AVC operations
+ */
+
+void __init avc_init(void);
+
+static inline u32 avc_audit_required(u32 requested, struct av_decision *avd,
+				     int result, u32 auditdeny, u32 *deniedp)
+{
+	u32 denied, audited;
+
+	if (avd->flags & AVD_FLAGS_NEVERAUDIT)
+		return 0;
+
+	denied = requested & ~avd->allowed;
+	if (unlikely(denied)) {
+		audited = denied & avd->auditdeny;
+		/*
+		 * auditdeny is TRICKY!  Setting a bit in
+		 * this field means that ANY denials should NOT be audited if
+		 * the policy contains an explicit dontaudit rule for that
+		 * permission.  Take notice that this is unrelated to the
+		 * actual permissions that were denied.  As an example lets
+		 * assume:
+		 *
+		 * denied == READ
+		 * avd.auditdeny & ACCESS == 0 (not set means explicit rule)
+		 * auditdeny & ACCESS == 1
+		 *
+		 * We will NOT audit the denial even though the denied
+		 * permission was READ and the auditdeny checks were for
+		 * ACCESS
+		 */
+		if (auditdeny && !(auditdeny & avd->auditdeny))
+			audited = 0;
+	} else if (result)
+		audited = denied = requested;
+	else
+		audited = requested & avd->auditallow;
+	*deniedp = denied;
+	return audited;
+}
+
+int slow_avc_audit(u32 ssid, u32 tsid, u16 tclass, u32 requested, u32 audited,
+		   u32 denied, int result, struct common_audit_data *a);
+
+/**
+ * avc_audit - Audit the granting or denial of permissions.
+ * @ssid: source security identifier
+ * @tsid: target security identifier
+ * @tclass: target security class
+ * @requested: requested permissions
+ * @avd: access vector decisions
+ * @result: result from avc_has_perm_noaudit
+ * @a:  auxiliary audit data
+ *
+ * Audit the granting or denial of permissions in accordance
+ * with the policy.  This function is typically called by
+ * avc_has_perm() after a permission check, but can also be
+ * called directly by callers who use avc_has_perm_noaudit()
+ * in order to separate the permission check from the auditing.
+ * For example, this separation is useful when the permission check must
+ * be performed under a lock, to allow the lock to be released
+ * before calling the auditing code.
+ */
+static inline int avc_audit(u32 ssid, u32 tsid, u16 tclass, u32 requested,
+			    struct av_decision *avd, int result,
+			    struct common_audit_data *a)
+{
+	u32 audited, denied;
+	audited = avc_audit_required(requested, avd, result, 0, &denied);
+	if (likely(!audited))
+		return 0;
+	return slow_avc_audit(ssid, tsid, tclass, requested, audited, denied,
+			      result, a);
+}
+
+#define AVC_STRICT	   1 /* Ignore permissive mode. */
+#define AVC_EXTENDED_PERMS 2 /* update extended permissions */
+int avc_has_perm_noaudit(u32 ssid, u32 tsid, u16 tclass, u32 requested,
+			 unsigned int flags, struct av_decision *avd);
+
+int avc_has_perm(u32 ssid, u32 tsid, u16 tclass, u32 requested,
+		 struct common_audit_data *auditdata);
+
+#define AVC_EXT_IOCTL	(1 << 0) /* Cache entry for an ioctl extended permission */
+#define AVC_EXT_NLMSG	(1 << 1) /* Cache entry for an nlmsg extended permission */
+int avc_has_extended_perms(u32 ssid, u32 tsid, u16 tclass, u32 requested,
+			   u8 driver, u8 base_perm, u8 perm,
+			   struct common_audit_data *ad);
+
+u32 avc_policy_seqno(void);
+
+#define AVC_CALLBACK_GRANT		1
+#define AVC_CALLBACK_TRY_REVOKE		2
+#define AVC_CALLBACK_REVOKE		4
+#define AVC_CALLBACK_RESET		8
+#define AVC_CALLBACK_AUDITALLOW_ENABLE	16
+#define AVC_CALLBACK_AUDITALLOW_DISABLE 32
+#define AVC_CALLBACK_AUDITDENY_ENABLE	64
+#define AVC_CALLBACK_AUDITDENY_DISABLE	128
+#define AVC_CALLBACK_ADD_XPERMS		256
+
+int avc_add_callback(int (*callback)(u32 event), u32 events);
+
+/* Exported to selinuxfs */
+int avc_get_hash_stats(char *page);
+unsigned int avc_get_cache_threshold(void);
+void avc_set_cache_threshold(unsigned int cache_threshold);
+
+#ifdef CONFIG_SECURITY_SELINUX_AVC_STATS
+DECLARE_PER_CPU(struct avc_cache_stats, avc_cache_stats);
+#endif
+
+#endif /* _SELINUX_AVC_H_ */

linux-7.2.3/security/selinux/include/avc_ss.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Access vector cache interface for the security server.
+ *
+ * Author : Stephen Smalley, <stephen.smalley.work@gmail.com>
+ */
+
+#ifndef _SELINUX_AVC_SS_H_
+#define _SELINUX_AVC_SS_H_
+
+#include <linux/types.h>
+
+int avc_ss_reset(u32 seqno);
+
+/* Class/perm mapping support */
+struct security_class_mapping {
+	const char *name;
+	const char *perms[sizeof(u32) * 8 + 1];
+};
+
+extern const struct security_class_mapping secclass_map[];
+
+#endif /* _SELINUX_AVC_SS_H_ */

linux-7.2.3/security/selinux/include/classmap.h

@@ -0,0 +1,193 @@
+/* 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 } },
+	{ "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",
+	    "map_create_as", "prog_load_as", 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 } },
+	{ "memfd_file",
+	  { COMMON_FILE_PERMS, "execute_no_trans", "entrypoint", 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

linux-7.2.3/security/selinux/include/conditional.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Interface to booleans in the security server. This is exported
+ * for the selinuxfs.
+ *
+ * Author: Karl MacMillan <kmacmillan@tresys.com>
+ *
+ * Copyright (C) 2003 - 2004 Tresys Technology, LLC
+ */
+
+#ifndef _SELINUX_CONDITIONAL_H_
+#define _SELINUX_CONDITIONAL_H_
+
+#include "security.h"
+
+int security_get_bools(struct selinux_policy *policy, u32 *len, char ***names,
+		       int **values);
+
+int security_set_bools(u32 len, const int *values);
+
+int security_get_bool_value(u32 index);
+
+#endif

linux-7.2.3/security/selinux/include/hash.h

@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SELINUX_HASH_H_
+#define _SELINUX_HASH_H_
+
+/*
+ * Based on MurmurHash3, written by Austin Appleby and placed in the
+ * public domain.
+ */
+static inline u32 av_hash(u32 key1, u32 key2, u32 key3, u32 mask)
+{
+	static const u32 c1 = 0xcc9e2d51;
+	static const u32 c2 = 0x1b873593;
+	static const u32 r1 = 15;
+	static const u32 r2 = 13;
+	static const u32 m = 5;
+	static const u32 n = 0xe6546b64;
+
+	u32 hash = 0;
+
+#define mix(input)                                         \
+	do {                                               \
+		u32 v = input;                             \
+		v *= c1;                                   \
+		v = (v << r1) | (v >> (32 - r1));          \
+		v *= c2;                                   \
+		hash ^= v;                                 \
+		hash = (hash << r2) | (hash >> (32 - r2)); \
+		hash = hash * m + n;                       \
+	} while (0)
+
+	mix(key1);
+	mix(key2);
+	mix(key3);
+
+#undef mix
+
+	hash ^= hash >> 16;
+	hash *= 0x85ebca6b;
+	hash ^= hash >> 13;
+	hash *= 0xc2b2ae35;
+	hash ^= hash >> 16;
+
+	return hash & mask;
+}
+
+#endif /* _SELINUX_HASH_H_ */

linux-7.2.3/security/selinux/include/ibpkey.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * pkey table
+ *
+ * SELinux must keep a mapping of pkeys to labels/SIDs.  This
+ * mapping is maintained as part of the normal policy but a fast cache is
+ * needed to reduce the lookup overhead.
+ */
+
+/*
+ * (c) Mellanox Technologies, 2016
+ */
+
+#ifndef _SELINUX_IB_PKEY_H
+#define _SELINUX_IB_PKEY_H
+
+#include <linux/types.h>
+#include "flask.h"
+
+#ifdef CONFIG_SECURITY_INFINIBAND
+void sel_ib_pkey_flush(void);
+int sel_ib_pkey_sid(u64 subnet_prefix, u16 pkey, u32 *sid);
+#else
+static inline void sel_ib_pkey_flush(void)
+{
+	return;
+}
+static inline int sel_ib_pkey_sid(u64 subnet_prefix, u16 pkey, u32 *sid)
+{
+	*sid = SECINITSID_UNLABELED;
+	return 0;
+}
+#endif
+
+#endif

linux-7.2.3/security/selinux/include/ima.h

@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2021 Microsoft Corporation
+ *
+ * Author: Lakshmi Ramasubramanian (nramas@linux.microsoft.com)
+ *
+ * Measure critical data structures maintained by SELinux
+ * using IMA subsystem.
+ */
+
+#ifndef _SELINUX_IMA_H_
+#define _SELINUX_IMA_H_
+
+#include "security.h"
+
+#ifdef CONFIG_IMA
+extern void selinux_ima_measure_state(void);
+extern void selinux_ima_measure_state_locked(void);
+#else
+static inline void selinux_ima_measure_state(void)
+{
+}
+static inline void selinux_ima_measure_state_locked(void)
+{
+}
+#endif
+
+#endif /* _SELINUX_IMA_H_ */

linux-7.2.3/security/selinux/include/initcalls.h

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * SELinux initcalls
+ */
+
+#ifndef _SELINUX_INITCALLS_H
+#define _SELINUX_INITCALLS_H
+
+int init_sel_fs(void);
+int sel_netport_init(void);
+int sel_netnode_init(void);
+int sel_netif_init(void);
+int sel_netlink_init(void);
+int sel_ib_pkey_init(void);
+int selinux_nf_ip_init(void);
+
+int selinux_initcall(void);
+
+#endif

linux-7.2.3/security/selinux/include/initial_sid_to_string.h

@@ -0,0 +1,38 @@
+/* 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 */
+	"kernel", /* kernel / SECINITSID_KERNEL */
+	"security", /* security / SECINITSID_SECURITY */
+	"unlabeled", /* unlabeled / SECINITSID_UNLABELED */
+	NULL, /* fs */
+	"file", /* file / SECINITSID_FILE */
+	NULL, /* file_labels */
+	"init", /* init / SECINITSID_INIT */
+	"any_socket", /* any_socket / SECINITSID_ANY_SOCKET */
+	"port", /* port / SECINITSID_PORT */
+	"netif", /* netif / SECINITSID_NETIF */
+	"netmsg", /* netmsg / SECINITSID_NETMSG */
+	"node", /* node / SECINITSID_NODE */
+	NULL, /* igmp_packet */
+	NULL, /* icmp_socket */
+	NULL, /* tcp_socket */
+	NULL, /* sysctl_modprobe */
+	NULL, /* sysctl */
+	NULL, /* sysctl_fs */
+	NULL, /* sysctl_kernel */
+	NULL, /* sysctl_net */
+	NULL, /* sysctl_net_unix */
+	NULL, /* sysctl_vm */
+	NULL, /* sysctl_dev */
+	NULL, /* kmod */
+	NULL, /* policy */
+	NULL, /* scmp_packet */
+	"devnull", /* devnull / SECINITSID_DEVNULL */
+};

linux-7.2.3/security/selinux/include/netif.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Network interface table.
+ *
+ * Network interfaces (devices) do not have a security field, so we
+ * maintain a table associating each interface with a SID.
+ *
+ * Author: James Morris <jmorris@redhat.com>
+ *
+ * Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ * Copyright (C) 2007 Hewlett-Packard Development Company, L.P.
+ *                    Paul Moore <paul@paul-moore.com>
+ */
+
+#ifndef _SELINUX_NETIF_H_
+#define _SELINUX_NETIF_H_
+
+#include <net/net_namespace.h>
+
+void sel_netif_flush(void);
+
+int sel_netif_sid(struct net *ns, int ifindex, u32 *sid);
+
+#endif /* _SELINUX_NETIF_H_ */

linux-7.2.3/security/selinux/include/netlabel.h

@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SELinux interface to the NetLabel subsystem
+ *
+ * Author: Paul Moore <paul@paul-moore.com>
+ */
+
+/*
+ * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
+ */
+
+#ifndef _SELINUX_NETLABEL_H_
+#define _SELINUX_NETLABEL_H_
+
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <net/request_sock.h>
+#include <net/sctp/structs.h>
+
+#include "avc.h"
+#include "objsec.h"
+
+#ifdef CONFIG_NETLABEL
+void selinux_netlbl_cache_invalidate(void);
+
+void selinux_netlbl_err(struct sk_buff *skb, u16 family, int error,
+			int gateway);
+
+void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec);
+void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec);
+
+int selinux_netlbl_skbuff_getsid(struct sk_buff *skb, u16 family, u32 *type,
+				 u32 *sid);
+int selinux_netlbl_skbuff_setsid(struct sk_buff *skb, u16 family, u32 sid);
+int selinux_netlbl_sctp_assoc_request(struct sctp_association *asoc,
+				      struct sk_buff *skb);
+int selinux_netlbl_inet_conn_request(struct request_sock *req, u16 family);
+void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family);
+void selinux_netlbl_sctp_sk_clone(struct sock *sk, struct sock *newsk);
+int selinux_netlbl_socket_post_create(struct sock *sk, u16 family);
+int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
+				struct sk_buff *skb, u16 family,
+				struct common_audit_data *ad);
+int selinux_netlbl_socket_setsockopt(struct socket *sock, int level,
+				     int optname);
+int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr);
+int selinux_netlbl_socket_connect_locked(struct sock *sk,
+					 struct sockaddr *addr);
+
+#else
+static inline void selinux_netlbl_cache_invalidate(void)
+{
+	return;
+}
+
+static inline void selinux_netlbl_err(struct sk_buff *skb, u16 family,
+				      int error, int gateway)
+{
+	return;
+}
+
+static inline void
+selinux_netlbl_sk_security_free(struct sk_security_struct *sksec)
+{
+	return;
+}
+
+static inline void
+selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec)
+{
+	return;
+}
+
+static inline int selinux_netlbl_skbuff_getsid(struct sk_buff *skb, u16 family,
+					       u32 *type, u32 *sid)
+{
+	*type = NETLBL_NLTYPE_NONE;
+	*sid = SECSID_NULL;
+	return 0;
+}
+static inline int selinux_netlbl_skbuff_setsid(struct sk_buff *skb, u16 family,
+					       u32 sid)
+{
+	return 0;
+}
+
+static inline int
+selinux_netlbl_sctp_assoc_request(struct sctp_association *asoc,
+				  struct sk_buff *skb)
+{
+	return 0;
+}
+static inline int selinux_netlbl_inet_conn_request(struct request_sock *req,
+						   u16 family)
+{
+	return 0;
+}
+static inline void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family)
+{
+	return;
+}
+static inline void selinux_netlbl_sctp_sk_clone(struct sock *sk,
+						struct sock *newsk)
+{
+	return;
+}
+static inline int selinux_netlbl_socket_post_create(struct sock *sk, u16 family)
+{
+	return 0;
+}
+static inline int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
+					      struct sk_buff *skb, u16 family,
+					      struct common_audit_data *ad)
+{
+	return 0;
+}
+static inline int selinux_netlbl_socket_setsockopt(struct socket *sock,
+						   int level, int optname)
+{
+	return 0;
+}
+static inline int selinux_netlbl_socket_connect(struct sock *sk,
+						struct sockaddr *addr)
+{
+	return 0;
+}
+static inline int selinux_netlbl_socket_connect_locked(struct sock *sk,
+						       struct sockaddr *addr)
+{
+	return 0;
+}
+#endif /* CONFIG_NETLABEL */
+
+#endif

linux-7.2.3/security/selinux/include/netnode.h

@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Network node table
+ *
+ * SELinux must keep a mapping of network nodes to labels/SIDs.  This
+ * mapping is maintained as part of the normal policy but a fast cache is
+ * needed to reduce the lookup overhead since most of these queries happen on
+ * a per-packet basis.
+ *
+ * Author: Paul Moore <paul@paul-moore.com>
+ */
+
+/*
+ * (c) Copyright Hewlett-Packard Development Company, L.P., 2007
+ */
+
+#ifndef _SELINUX_NETNODE_H
+#define _SELINUX_NETNODE_H
+
+#include <linux/types.h>
+
+void sel_netnode_flush(void);
+
+int sel_netnode_sid(const void *addr, u16 family, u32 *sid);
+
+#endif

linux-7.2.3/security/selinux/include/netport.h

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Network port table
+ *
+ * SELinux must keep a mapping of network ports to labels/SIDs.  This
+ * mapping is maintained as part of the normal policy but a fast cache is
+ * needed to reduce the lookup overhead.
+ *
+ * Author: Paul Moore <paul@paul-moore.com>
+ */
+
+/*
+ * (c) Copyright Hewlett-Packard Development Company, L.P., 2008
+ */
+
+#ifndef _SELINUX_NETPORT_H
+#define _SELINUX_NETPORT_H
+
+#include <linux/types.h>
+
+void sel_netport_flush(void);
+
+int sel_netport_sid(u8 protocol, u16 pnum, u32 *sid);
+
+#endif

linux-7.2.3/security/selinux/include/objsec.h

@@ -0,0 +1,290 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  Security-Enhanced Linux (SELinux) security module
+ *
+ *  This file contains the SELinux security data structures for kernel objects.
+ *
+ *  Author(s):  Stephen Smalley, <stephen.smalley.work@gmail.com>
+ *		Chris Vance, <cvance@nai.com>
+ *		Wayne Salamon, <wsalamon@nai.com>
+ *		James Morris <jmorris@redhat.com>
+ *
+ *  Copyright (C) 2001,2002 Networks Associates Technology, Inc.
+ *  Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ *  Copyright (C) 2016 Mellanox Technologies
+ */
+
+#ifndef _SELINUX_OBJSEC_H_
+#define _SELINUX_OBJSEC_H_
+
+#include <linux/list.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/binfmts.h>
+#include <linux/in.h>
+#include <linux/spinlock.h>
+#include <linux/lsm_hooks.h>
+#include <linux/msg.h>
+#include <net/net_namespace.h>
+#include <linux/bpf.h>
+#include "flask.h"
+#include "avc.h"
+
+struct avdc_entry {
+	u32 isid; /* inode SID */
+	struct av_decision avd; /* av decision */
+};
+
+struct cred_security_struct {
+	u32 osid; /* SID prior to last execve */
+	u32 sid; /* current SID */
+	u32 exec_sid; /* exec SID */
+	u32 create_sid; /* fscreate SID */
+	u32 keycreate_sid; /* keycreate SID */
+	u32 sockcreate_sid; /* fscreate SID */
+} __randomize_layout;
+
+struct task_security_struct {
+#define TSEC_AVDC_DIR_SIZE (1 << 2)
+	struct {
+		u32 sid; /* current SID for cached entries */
+		u32 seqno; /* AVC sequence number */
+		unsigned int dir_spot; /* dir cache index to check first */
+		struct avdc_entry dir[TSEC_AVDC_DIR_SIZE]; /* dir entries */
+		bool permissive_neveraudit; /* permissive and neveraudit */
+	} avdcache;
+} __randomize_layout;
+
+static inline bool task_avdcache_permnoaudit(struct task_security_struct *tsec,
+					     u32 sid)
+{
+	return (tsec->avdcache.permissive_neveraudit &&
+		sid == tsec->avdcache.sid &&
+		tsec->avdcache.seqno == avc_policy_seqno());
+}
+
+enum label_initialized {
+	LABEL_INVALID, /* invalid or not initialized */
+	LABEL_INITIALIZED, /* initialized */
+	LABEL_PENDING
+};
+
+struct inode_security_struct {
+	struct inode *inode; /* back pointer to inode object */
+	struct list_head list; /* list of inode_security_struct */
+	u32 task_sid; /* SID of creating task */
+	u32 sid; /* SID of this object */
+	u16 sclass; /* security class of this object */
+	unsigned char initialized; /* initialization flag */
+	spinlock_t lock;
+};
+
+struct file_security_struct {
+	u32 sid; /* SID of open file description */
+	u32 fown_sid; /* SID of file owner (for SIGIO) */
+	u32 isid; /* SID of inode at the time of file open */
+	u32 pseqno; /* Policy seqno at the time of file open */
+};
+
+struct backing_file_security_struct {
+	u32 uf_sid; /* associated user file fsec->sid */
+};
+
+struct superblock_security_struct {
+	u32 sid; /* SID of file system superblock */
+	u32 def_sid; /* default SID for labeling */
+	u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
+	u32 creator_sid; /* SID of privileged process */
+	unsigned short behavior; /* labeling behavior */
+	unsigned short flags; /* which mount options were specified */
+	struct mutex lock;
+	struct list_head isec_head;
+	spinlock_t isec_lock;
+};
+
+struct msg_security_struct {
+	u32 sid; /* SID of message */
+};
+
+struct ipc_security_struct {
+	u16 sclass; /* security class of this object */
+	u32 sid; /* SID of IPC resource */
+};
+
+struct netif_security_struct {
+	const struct net *ns; /* network namespace */
+	int ifindex; /* device index */
+	u32 sid; /* SID for this interface */
+};
+
+struct netnode_security_struct {
+	union {
+		__be32 ipv4; /* IPv4 node address */
+		struct in6_addr ipv6; /* IPv6 node address */
+	} addr;
+	u32 sid; /* SID for this node */
+	u16 family; /* address family */
+};
+
+struct netport_security_struct {
+	u32 sid; /* SID for this node */
+	u16 port; /* port number */
+	u8 protocol; /* transport protocol */
+};
+
+struct sk_security_struct {
+#ifdef CONFIG_NETLABEL
+	enum { /* NetLabel state */
+	       NLBL_UNSET = 0,
+	       NLBL_REQUIRE,
+	       NLBL_LABELED,
+	       NLBL_REQSKB,
+	       NLBL_CONNLABELED,
+	} nlbl_state;
+	struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */
+#endif
+	u32 sid; /* SID of this object */
+	u32 peer_sid; /* SID of peer */
+	u16 sclass; /* sock security class */
+	enum { /* SCTP association state */
+	       SCTP_ASSOC_UNSET = 0,
+	       SCTP_ASSOC_SET,
+	} sctp_assoc_state;
+};
+
+struct tun_security_struct {
+	u32 sid; /* SID for the tun device sockets */
+};
+
+struct key_security_struct {
+	u32 sid; /* SID of key */
+};
+
+struct ib_security_struct {
+	u32 sid; /* SID of the queue pair or MAD agent */
+};
+
+struct pkey_security_struct {
+	u64 subnet_prefix; /* Port subnet prefix */
+	u16 pkey; /* PKey number */
+	u32 sid; /* SID of pkey */
+};
+
+struct bpf_security_struct {
+	u32 sid; /* SID of bpf obj creator */
+	u32 perms; /* permissions for allowed bpf token commands */
+	u32 grantor_sid; /* SID of token grantor */
+};
+
+struct perf_event_security_struct {
+	u32 sid; /* SID of perf_event obj creator */
+};
+
+extern struct lsm_blob_sizes selinux_blob_sizes;
+static inline struct cred_security_struct *selinux_cred(const struct cred *cred)
+{
+	return cred->security + selinux_blob_sizes.lbs_cred;
+}
+
+static inline struct task_security_struct *
+selinux_task(const struct task_struct *task)
+{
+	return task->security + selinux_blob_sizes.lbs_task;
+}
+
+static inline struct file_security_struct *selinux_file(const struct file *file)
+{
+	return file->f_security + selinux_blob_sizes.lbs_file;
+}
+
+static inline struct backing_file_security_struct *
+selinux_backing_file(const struct file *backing_file)
+{
+	void *blob = backing_file_security(backing_file);
+	return blob + selinux_blob_sizes.lbs_backing_file;
+}
+
+static inline struct inode_security_struct *
+selinux_inode(const struct inode *inode)
+{
+	if (unlikely(!inode->i_security))
+		return NULL;
+	return inode->i_security + selinux_blob_sizes.lbs_inode;
+}
+
+static inline struct msg_security_struct *
+selinux_msg_msg(const struct msg_msg *msg_msg)
+{
+	return msg_msg->security + selinux_blob_sizes.lbs_msg_msg;
+}
+
+static inline struct ipc_security_struct *
+selinux_ipc(const struct kern_ipc_perm *ipc)
+{
+	return ipc->security + selinux_blob_sizes.lbs_ipc;
+}
+
+/*
+ * get the subjective security ID of the current task
+ */
+static inline u32 current_sid(void)
+{
+	const struct cred_security_struct *crsec = selinux_cred(current_cred());
+
+	return crsec->sid;
+}
+
+static inline struct superblock_security_struct *
+selinux_superblock(const struct super_block *superblock)
+{
+	return superblock->s_security + selinux_blob_sizes.lbs_superblock;
+}
+
+#ifdef CONFIG_KEYS
+static inline struct key_security_struct *selinux_key(const struct key *key)
+{
+	return key->security + selinux_blob_sizes.lbs_key;
+}
+#endif /* CONFIG_KEYS */
+
+static inline struct sk_security_struct *selinux_sock(const struct sock *sock)
+{
+	return sock->sk_security + selinux_blob_sizes.lbs_sock;
+}
+
+static inline struct tun_security_struct *selinux_tun_dev(void *security)
+{
+	return security + selinux_blob_sizes.lbs_tun_dev;
+}
+
+static inline struct ib_security_struct *selinux_ib(void *ib_sec)
+{
+	return ib_sec + selinux_blob_sizes.lbs_ib;
+}
+
+static inline struct perf_event_security_struct *
+selinux_perf_event(void *perf_event)
+{
+	return perf_event + selinux_blob_sizes.lbs_perf_event;
+}
+
+#ifdef CONFIG_BPF_SYSCALL
+static inline struct bpf_security_struct *
+selinux_bpf_map_security(struct bpf_map *map)
+{
+	return map->security + selinux_blob_sizes.lbs_bpf_map;
+}
+
+static inline struct bpf_security_struct *
+selinux_bpf_prog_security(struct bpf_prog *prog)
+{
+	return prog->aux->security + selinux_blob_sizes.lbs_bpf_prog;
+}
+
+static inline struct bpf_security_struct *
+selinux_bpf_token_security(struct bpf_token *token)
+{
+	return token->security + selinux_blob_sizes.lbs_bpf_token;
+}
+#endif /* CONFIG_BPF_SYSCALL */
+#endif /* _SELINUX_OBJSEC_H_ */

linux-7.2.3/security/selinux/include/policycap.h

@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _SELINUX_POLICYCAP_H_
+#define _SELINUX_POLICYCAP_H_
+
+/* Policy capabilities */
+enum {
+	POLICYDB_CAP_NETPEER,
+	POLICYDB_CAP_OPENPERM,
+	POLICYDB_CAP_EXTSOCKCLASS,
+	POLICYDB_CAP_ALWAYSNETWORK,
+	POLICYDB_CAP_CGROUPSECLABEL,
+	POLICYDB_CAP_NNP_NOSUID_TRANSITION,
+	POLICYDB_CAP_GENFS_SECLABEL_SYMLINKS,
+	POLICYDB_CAP_IOCTL_SKIP_CLOEXEC,
+	POLICYDB_CAP_USERSPACE_INITIAL_CONTEXT,
+	POLICYDB_CAP_NETLINK_XPERM,
+	POLICYDB_CAP_NETIF_WILDCARD,
+	POLICYDB_CAP_GENFS_SECLABEL_WILDCARD,
+	POLICYDB_CAP_FUNCTIONFS_SECLABEL,
+	POLICYDB_CAP_MEMFD_CLASS,
+	POLICYDB_CAP_BPF_TOKEN_PERMS,
+	__POLICYDB_CAP_MAX
+};
+#define POLICYDB_CAP_MAX (__POLICYDB_CAP_MAX - 1)
+
+extern const char *const selinux_policycap_names[__POLICYDB_CAP_MAX];
+
+#endif /* _SELINUX_POLICYCAP_H_ */

linux-7.2.3/security/selinux/include/policycap_names.h

@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _SELINUX_POLICYCAP_NAMES_H_
+#define _SELINUX_POLICYCAP_NAMES_H_
+
+#include "policycap.h"
+
+/* clang-format off */
+/* Policy capability names */
+const char *const selinux_policycap_names[__POLICYDB_CAP_MAX] = {
+	"network_peer_controls",
+	"open_perms",
+	"extended_socket_class",
+	"always_check_network",
+	"cgroup_seclabel",
+	"nnp_nosuid_transition",
+	"genfs_seclabel_symlinks",
+	"ioctl_skip_cloexec",
+	"userspace_initial_context",
+	"netlink_xperm",
+	"netif_wildcard",
+	"genfs_seclabel_wildcard",
+	"functionfs_seclabel",
+	"memfd_class",
+	"bpf_token_perms",
+};
+/* clang-format on */
+
+#endif /* _SELINUX_POLICYCAP_NAMES_H_ */

linux-7.2.3/security/selinux/include/security.h

@@ -0,0 +1,414 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Security server interface.
+ *
+ * Author : Stephen Smalley, <stephen.smalley.work@gmail.com>
+ *
+ */
+
+#ifndef _SELINUX_SECURITY_H_
+#define _SELINUX_SECURITY_H_
+
+#include <linux/compiler.h>
+#include <linux/dcache.h>
+#include <linux/magic.h>
+#include <linux/types.h>
+#include <linux/rcupdate.h>
+#include <linux/refcount.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/printk.h>
+#include "flask.h"
+#include "policycap.h"
+
+#define SECSID_NULL   0x00000000 /* unspecified SID */
+#define SECSID_WILD   0xffffffff /* wildcard SID */
+#define SECCLASS_NULL 0x0000 /* no class */
+
+/* Identify specific policy version changes */
+#define POLICYDB_VERSION_BASE		     15
+#define POLICYDB_VERSION_BOOL		     16
+#define POLICYDB_VERSION_IPV6		     17
+#define POLICYDB_VERSION_NLCLASS	     18
+#define POLICYDB_VERSION_VALIDATETRANS	     19
+#define POLICYDB_VERSION_MLS		     19
+#define POLICYDB_VERSION_AVTAB		     20
+#define POLICYDB_VERSION_RANGETRANS	     21
+#define POLICYDB_VERSION_POLCAP		     22
+#define POLICYDB_VERSION_PERMISSIVE	     23
+#define POLICYDB_VERSION_BOUNDARY	     24
+#define POLICYDB_VERSION_FILENAME_TRANS	     25
+#define POLICYDB_VERSION_ROLETRANS	     26
+#define POLICYDB_VERSION_NEW_OBJECT_DEFAULTS 27
+#define POLICYDB_VERSION_DEFAULT_TYPE	     28
+#define POLICYDB_VERSION_CONSTRAINT_NAMES    29
+#define POLICYDB_VERSION_XPERMS_IOCTL	     30
+#define POLICYDB_VERSION_INFINIBAND	     31
+#define POLICYDB_VERSION_GLBLUB		     32
+#define POLICYDB_VERSION_COMP_FTRANS	     33 /* compressed filename transitions */
+#define POLICYDB_VERSION_COND_XPERMS	     34 /* extended permissions in conditional policies */
+#define POLICYDB_VERSION_NEVERAUDIT	     35 /* neveraudit types */
+
+/* Range of policy versions we understand*/
+#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
+#define POLICYDB_VERSION_MAX POLICYDB_VERSION_NEVERAUDIT
+
+/* Mask for just the mount related flags */
+#define SE_MNTMASK 0x0f
+/* Super block security struct flags for mount options */
+/* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */
+#define CONTEXT_MNT	0x01
+#define FSCONTEXT_MNT	0x02
+#define ROOTCONTEXT_MNT 0x04
+#define DEFCONTEXT_MNT	0x08
+#define SBLABEL_MNT	0x10
+/* Non-mount related flags */
+#define SE_SBINITIALIZED 0x0100
+#define SE_SBPROC	 0x0200
+#define SE_SBGENFS	 0x0400
+#define SE_SBGENFS_XATTR 0x0800
+#define SE_SBNATIVE	 0x1000
+
+#define CONTEXT_STR	"context"
+#define FSCONTEXT_STR	"fscontext"
+#define ROOTCONTEXT_STR "rootcontext"
+#define DEFCONTEXT_STR	"defcontext"
+#define SECLABEL_STR	"seclabel"
+
+struct netlbl_lsm_secattr;
+
+extern int selinux_enabled_boot;
+
+/*
+ * type_datum properties
+ * available at the kernel policy version >= POLICYDB_VERSION_BOUNDARY
+ */
+#define TYPEDATUM_PROPERTY_PRIMARY   0x0001
+#define TYPEDATUM_PROPERTY_ATTRIBUTE 0x0002
+
+/* limitation of boundary depth  */
+#define POLICYDB_BOUNDS_MAXDEPTH 4
+
+struct selinux_policy;
+
+struct selinux_state {
+#ifdef CONFIG_SECURITY_SELINUX_DEVELOP
+	bool enforcing;
+#endif
+	bool initialized;
+	bool policycap[__POLICYDB_CAP_MAX];
+
+	struct page *status_page;
+	struct mutex status_lock;
+
+	struct selinux_policy __rcu *policy;
+	struct mutex policy_mutex;
+} __randomize_layout;
+
+void selinux_avc_init(void);
+
+extern struct selinux_state selinux_state;
+
+static inline bool selinux_initialized(void)
+{
+	/* do a synchronized load to avoid race conditions */
+	return smp_load_acquire(&selinux_state.initialized);
+}
+
+static inline void selinux_mark_initialized(void)
+{
+	/* do a synchronized write to avoid race conditions */
+	smp_store_release(&selinux_state.initialized, true);
+}
+
+#ifdef CONFIG_SECURITY_SELINUX_DEVELOP
+static inline bool enforcing_enabled(void)
+{
+	return READ_ONCE(selinux_state.enforcing);
+}
+
+static inline void enforcing_set(bool value)
+{
+	WRITE_ONCE(selinux_state.enforcing, value);
+}
+#else
+static inline bool enforcing_enabled(void)
+{
+	return true;
+}
+
+static inline void enforcing_set(bool value)
+{
+}
+#endif
+
+static inline bool checkreqprot_get(void)
+{
+	/* non-zero/true checkreqprot values are no longer supported */
+	return 0;
+}
+
+static inline bool selinux_policycap_netpeer(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_NETPEER]);
+}
+
+static inline bool selinux_policycap_openperm(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_OPENPERM]);
+}
+
+static inline bool selinux_policycap_extsockclass(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_EXTSOCKCLASS]);
+}
+
+static inline bool selinux_policycap_alwaysnetwork(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_ALWAYSNETWORK]);
+}
+
+static inline bool selinux_policycap_cgroupseclabel(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_CGROUPSECLABEL]);
+}
+
+static inline bool selinux_policycap_nnp_nosuid_transition(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_NNP_NOSUID_TRANSITION]);
+}
+
+static inline bool selinux_policycap_genfs_seclabel_symlinks(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_GENFS_SECLABEL_SYMLINKS]);
+}
+
+static inline bool selinux_policycap_ioctl_skip_cloexec(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_IOCTL_SKIP_CLOEXEC]);
+}
+
+static inline bool selinux_policycap_userspace_initial_context(void)
+{
+	return READ_ONCE(
+		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]);
+}
+
+static inline bool selinux_policycap_functionfs_seclabel(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_FUNCTIONFS_SECLABEL]);
+}
+
+static inline bool selinux_policycap_memfd_class(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_MEMFD_CLASS]);
+}
+
+static inline bool selinux_policycap_bpf_token_perms(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_BPF_TOKEN_PERMS]);
+}
+
+struct selinux_policy_convert_data;
+
+struct selinux_load_state {
+	struct selinux_policy *policy;
+	struct selinux_policy_convert_data *convert_data;
+};
+
+int security_mls_enabled(void);
+int security_load_policy(void *data, size_t len,
+			 struct selinux_load_state *load_state);
+void selinux_policy_commit(struct selinux_load_state *load_state);
+void selinux_policy_cancel(struct selinux_load_state *load_state);
+int security_read_policy(void **data, size_t *len);
+int security_read_state_kernel(void **data, size_t *len);
+int security_policycap_supported(unsigned int req_cap);
+
+/* Maximum supported number of permissions per class */
+#define SEL_VEC_MAX 32
+struct av_decision {
+	u32 allowed;
+	u32 auditallow;
+	u32 auditdeny;
+	u32 seqno;
+	u32 flags;
+};
+
+#define XPERMS_ALLOWED	  1
+#define XPERMS_AUDITALLOW 2
+#define XPERMS_DONTAUDIT  4
+
+#define security_xperm_set(perms, x)  ((perms)[(x) >> 5] |= 1 << ((x)&0x1f))
+#define security_xperm_test(perms, x) (1 & ((perms)[(x) >> 5] >> ((x)&0x1f)))
+struct extended_perms_data {
+	u32 p[8];
+};
+
+struct extended_perms_decision {
+	u8 used;
+	u8 driver;
+	u8 base_perm;
+	struct extended_perms_data *allowed;
+	struct extended_perms_data *auditallow;
+	struct extended_perms_data *dontaudit;
+};
+
+struct extended_perms {
+	u16 len; /* length associated decision chain */
+	u8 base_perms; /* which base permissions are covered */
+	struct extended_perms_data drivers; /* flag drivers that are used */
+};
+
+/* definitions of av_decision.flags */
+#define AVD_FLAGS_PERMISSIVE 0x0001
+#define AVD_FLAGS_NEVERAUDIT  0x0002
+
+void security_compute_av(u32 ssid, u32 tsid, u16 tclass,
+			 struct av_decision *avd,
+			 struct extended_perms *xperms);
+
+void security_compute_xperms_decision(u32 ssid, u32 tsid, u16 tclass, u8 driver,
+				      u8 base_perm,
+				      struct extended_perms_decision *xpermd);
+
+void security_compute_av_user(u32 ssid, u32 tsid, u16 tclass,
+			      struct av_decision *avd);
+
+int security_transition_sid(u32 ssid, u32 tsid, u16 tclass,
+			    const struct qstr *qstr, u32 *out_sid);
+
+int security_transition_sid_user(u32 ssid, u32 tsid, u16 tclass,
+				 const char *objname, u32 *out_sid);
+
+int security_member_sid(u32 ssid, u32 tsid, u16 tclass, u32 *out_sid);
+
+int security_change_sid(u32 ssid, u32 tsid, u16 tclass, u32 *out_sid);
+
+int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len);
+
+int security_sid_to_context_force(u32 sid, char **scontext, u32 *scontext_len);
+
+int security_sid_to_context_inval(u32 sid, char **scontext, u32 *scontext_len);
+
+int security_context_to_sid(const char *scontext, u32 scontext_len,
+			    u32 *out_sid, gfp_t gfp);
+
+int security_context_str_to_sid(const char *scontext, u32 *out_sid, gfp_t gfp);
+
+int security_context_to_sid_default(const char *scontext, u32 scontext_len,
+				    u32 *out_sid, u32 def_sid, gfp_t gfp_flags);
+
+int security_context_to_sid_force(const char *scontext, u32 scontext_len,
+				  u32 *sid);
+
+int security_port_sid(u8 protocol, u16 port, u32 *out_sid);
+
+int security_ib_pkey_sid(u64 subnet_prefix, u16 pkey_num, u32 *out_sid);
+
+int security_ib_endport_sid(const char *dev_name, u8 port_num, u32 *out_sid);
+
+int security_netif_sid(const char *name, u32 *if_sid);
+
+int security_node_sid(u16 domain, const void *addr, u32 addrlen, u32 *out_sid);
+
+int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
+				 u16 tclass);
+
+int security_validate_transition_user(u32 oldsid, u32 newsid, u32 tasksid,
+				      u16 tclass);
+
+int security_bounded_transition(u32 old_sid, u32 new_sid);
+
+int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
+
+int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type, u32 xfrm_sid,
+				 u32 *peer_sid);
+
+int security_get_classes(struct selinux_policy *policy, char ***classes,
+			 u32 *nclasses);
+int security_get_permissions(struct selinux_policy *policy, const char *class,
+			     char ***perms, u32 *nperms);
+int security_get_reject_unknown(void);
+int security_get_allow_unknown(void);
+
+#define SECURITY_FS_USE_XATTR	 1 /* use xattr */
+#define SECURITY_FS_USE_TRANS	 2 /* use transition SIDs, e.g. devpts/tmpfs */
+#define SECURITY_FS_USE_TASK	 3 /* use task SIDs, e.g. pipefs/sockfs */
+#define SECURITY_FS_USE_GENFS	 4 /* use the genfs support */
+#define SECURITY_FS_USE_NONE	 5 /* no labeling support */
+#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
+#define SECURITY_FS_USE_NATIVE	 7 /* use native label support */
+#define SECURITY_FS_USE_MAX	 7 /* Highest SECURITY_FS_USE_XXX */
+
+int security_fs_use(struct super_block *sb);
+
+int security_genfs_sid(const char *fstype, const char *path, u16 sclass,
+		       u32 *sid);
+
+int selinux_policy_genfs_sid(struct selinux_policy *policy, const char *fstype,
+			     const char *path, u16 sclass, u32 *sid);
+
+#ifdef CONFIG_NETLABEL
+int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
+				   u32 *sid);
+
+int security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr);
+#else
+static inline int
+security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr, u32 *sid)
+{
+	return -EIDRM;
+}
+
+static inline int
+security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr)
+{
+	return -ENOENT;
+}
+#endif /* CONFIG_NETLABEL */
+
+const char *security_get_initial_sid_context(u32 sid);
+
+/*
+ * status notifier using mmap interface
+ */
+extern struct page *selinux_kernel_status_page(void);
+
+#define SELINUX_KERNEL_STATUS_VERSION 1
+struct selinux_kernel_status {
+	u32 version; /* version number of the structure */
+	u32 sequence; /* sequence number of seqlock logic */
+	u32 enforcing; /* current setting of enforcing mode */
+	u32 policyload; /* times of policy reloaded */
+	u32 deny_unknown; /* current setting of deny_unknown */
+	/*
+	 * The version > 0 supports above members.
+	 */
+} __packed;
+
+extern void selinux_status_update_setenforce(bool enforcing);
+extern void selinux_status_update_policyload(u32 seqno);
+extern void selinux_complete_init(void);
+extern struct path selinux_null;
+extern void selnl_notify_setenforce(int val);
+extern void selnl_notify_policyload(u32 seqno);
+extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm);
+
+extern void avtab_cache_init(void);
+extern void ebitmap_cache_init(void);
+extern void hashtab_cache_init(void);
+extern int security_sidtab_hash_stats(char *page);
+
+#endif /* _SELINUX_SECURITY_H_ */

linux-7.2.3/security/selinux/include/xfrm.h

@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * SELinux support for the XFRM LSM hooks
+ *
+ * Author : Trent Jaeger, <jaegert@us.ibm.com>
+ * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com>
+ */
+
+#ifndef _SELINUX_XFRM_H_
+#define _SELINUX_XFRM_H_
+
+#include <linux/lsm_audit.h>
+#include <net/flow.h>
+#include <net/xfrm.h>
+
+int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
+			      struct xfrm_user_sec_ctx *uctx, gfp_t gfp);
+int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
+			      struct xfrm_sec_ctx **new_ctxp);
+void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
+int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
+int selinux_xfrm_state_alloc(struct xfrm_state *x,
+			     struct xfrm_user_sec_ctx *uctx);
+int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
+				     struct xfrm_sec_ctx *polsec, u32 secid);
+void selinux_xfrm_state_free(struct xfrm_state *x);
+int selinux_xfrm_state_delete(struct xfrm_state *x);
+int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
+int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
+				      struct xfrm_policy *xp,
+				      const struct flowi_common *flic);
+
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+extern atomic_t selinux_xfrm_refcount;
+
+static inline int selinux_xfrm_enabled(void)
+{
+	return (atomic_read(&selinux_xfrm_refcount) > 0);
+}
+
+int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
+			      struct common_audit_data *ad);
+int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
+				struct common_audit_data *ad, u8 proto);
+int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
+int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid);
+
+static inline void selinux_xfrm_notify_policyload(void)
+{
+	struct net *net;
+
+	down_read(&net_rwsem);
+	for_each_net(net)
+		rt_genid_bump_all(net);
+	up_read(&net_rwsem);
+}
+#else
+static inline int selinux_xfrm_enabled(void)
+{
+	return 0;
+}
+
+static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
+					    struct common_audit_data *ad)
+{
+	return 0;
+}
+
+static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
+					      struct common_audit_data *ad,
+					      u8 proto)
+{
+	return 0;
+}
+
+static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid,
+					      int ckall)
+{
+	*sid = SECSID_NULL;
+	return 0;
+}
+
+static inline void selinux_xfrm_notify_policyload(void)
+{
+}
+
+static inline int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid)
+{
+	*sid = SECSID_NULL;
+	return 0;
+}
+#endif
+
+#endif /* _SELINUX_XFRM_H_ */