190 lines
5.1 KiB
C
190 lines
5.1 KiB
C
/*
|
|
* Security server interface.
|
|
*
|
|
* Author : Stephen Smalley, <sds@epoch.ncsc.mil>
|
|
*
|
|
*/
|
|
|
|
#ifndef _SELINUX_SECURITY_H_
|
|
#define _SELINUX_SECURITY_H_
|
|
|
|
#include <linux/magic.h>
|
|
#include "flask.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
|
|
|
|
/* Range of policy versions we understand*/
|
|
#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
|
|
#ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX
|
|
#define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
|
|
#else
|
|
#define POLICYDB_VERSION_MAX POLICYDB_VERSION_BOUNDARY
|
|
#endif
|
|
|
|
/* Mask for just the mount related flags */
|
|
#define SE_MNTMASK 0x0f
|
|
/* Super block security struct flags for mount options */
|
|
#define CONTEXT_MNT 0x01
|
|
#define FSCONTEXT_MNT 0x02
|
|
#define ROOTCONTEXT_MNT 0x04
|
|
#define DEFCONTEXT_MNT 0x08
|
|
/* Non-mount related flags */
|
|
#define SE_SBINITIALIZED 0x10
|
|
#define SE_SBPROC 0x20
|
|
#define SE_SBLABELSUPP 0x40
|
|
|
|
#define CONTEXT_STR "context="
|
|
#define FSCONTEXT_STR "fscontext="
|
|
#define ROOTCONTEXT_STR "rootcontext="
|
|
#define DEFCONTEXT_STR "defcontext="
|
|
#define LABELSUPP_STR "seclabel"
|
|
|
|
struct netlbl_lsm_secattr;
|
|
|
|
extern int selinux_enabled;
|
|
extern int selinux_mls_enabled;
|
|
|
|
/* Policy capabilities */
|
|
enum {
|
|
POLICYDB_CAPABILITY_NETPEER,
|
|
POLICYDB_CAPABILITY_OPENPERM,
|
|
__POLICYDB_CAPABILITY_MAX
|
|
};
|
|
#define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)
|
|
|
|
extern int selinux_policycap_netpeer;
|
|
extern int selinux_policycap_openperm;
|
|
|
|
/*
|
|
* 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
|
|
|
|
int security_load_policy(void *data, size_t len);
|
|
|
|
int security_policycap_supported(unsigned int req_cap);
|
|
|
|
#define SEL_VEC_MAX 32
|
|
struct av_decision {
|
|
u32 allowed;
|
|
u32 auditallow;
|
|
u32 auditdeny;
|
|
u32 seqno;
|
|
u32 flags;
|
|
};
|
|
|
|
/* definitions of av_decision.flags */
|
|
#define AVD_FLAGS_PERMISSIVE 0x0001
|
|
|
|
int security_compute_av(u32 ssid, u32 tsid,
|
|
u16 tclass, u32 requested,
|
|
struct av_decision *avd);
|
|
|
|
int security_transition_sid(u32 ssid, u32 tsid,
|
|
u16 tclass, 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_context_to_sid(const char *scontext, u32 scontext_len,
|
|
u32 *out_sid);
|
|
|
|
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_get_user_sids(u32 callsid, char *username,
|
|
u32 **sids, u32 *nel);
|
|
|
|
int security_port_sid(u8 protocol, u16 port, u32 *out_sid);
|
|
|
|
int security_netif_sid(char *name, u32 *if_sid);
|
|
|
|
int security_node_sid(u16 domain, void *addr, u32 addrlen,
|
|
u32 *out_sid);
|
|
|
|
int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
|
|
u16 tclass);
|
|
|
|
int security_bounded_transition(u32 oldsid, u32 newsid);
|
|
|
|
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(char ***classes, int *nclasses);
|
|
int security_get_permissions(char *class, char ***perms, int *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 */
|
|
|
|
int security_fs_use(const char *fstype, unsigned int *behavior,
|
|
u32 *sid);
|
|
|
|
int security_genfs_sid(const char *fstype, char *name, 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);
|
|
|
|
#endif /* _SELINUX_SECURITY_H_ */
|
|
|