/* 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_DEVELOPstatic inline bool enforcing_enabled(void){ return READ_ONCE(selinux_state.enforcing);} static inline void enforcing_set(bool value){ WRITE_ONCE(selinux_state.enforcing, value);}#elsestatic 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 32struct 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_NETLABELint 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);#elsestatic inline intsecurity_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr, u32 *sid){ return -EIDRM;} static inline intsecurity_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 1struct 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_ */
/* 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_ */