security.h revision 089be43e403a78cd6889cde2fba164fefe9dfd89
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Security server interface. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Author : Stephen Smalley, <sds@epoch.ncsc.mil> 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef _SELINUX_SECURITY_H_ 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _SELINUX_SECURITY_H_ 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "flask.h" 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECSID_NULL 0x00000000 /* unspecified SID */ 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECSID_WILD 0xffffffff /* wildcard SID */ 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECCLASS_NULL 0x0000 /* no class */ 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SELINUX_MAGIC 0xf97cff8c 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Identify specific policy version changes */ 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define POLICYDB_VERSION_BASE 15 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define POLICYDB_VERSION_BOOL 16 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define POLICYDB_VERSION_IPV6 17 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define POLICYDB_VERSION_NLCLASS 18 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define POLICYDB_VERSION_VALIDATETRANS 19 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define POLICYDB_VERSION_MLS 19 26782ebb992ec20b5afdd5786ee8c2f1b58b631f24Stephen Smalley#define POLICYDB_VERSION_AVTAB 20 27f3f8771420737004da55159c2f2dc0b6f483a4efDarrel Goeddel#define POLICYDB_VERSION_RANGETRANS 21 283bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore#define POLICYDB_VERSION_POLCAP 22 2964dbf07474d011540ca479a2e87fe998f570d6e3Eric Paris#define POLICYDB_VERSION_PERMISSIVE 23 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Range of policy versions we understand*/ 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE 33016b9bdb81d9c9c7800e4e224ade38d8b37669d3Stephen Smalley#ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX 34016b9bdb81d9c9c7800e4e224ade38d8b37669d3Stephen Smalley#define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE 35016b9bdb81d9c9c7800e4e224ade38d8b37669d3Stephen Smalley#else 3664dbf07474d011540ca479a2e87fe998f570d6e3Eric Paris#define POLICYDB_VERSION_MAX POLICYDB_VERSION_PERMISSIVE 37016b9bdb81d9c9c7800e4e224ade38d8b37669d3Stephen Smalley#endif 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 39e0007529893c1c064be90bd21422ca0da4a0198eEric Paris#define CONTEXT_MNT 0x01 40e0007529893c1c064be90bd21422ca0da4a0198eEric Paris#define FSCONTEXT_MNT 0x02 41e0007529893c1c064be90bd21422ca0da4a0198eEric Paris#define ROOTCONTEXT_MNT 0x04 42e0007529893c1c064be90bd21422ca0da4a0198eEric Paris#define DEFCONTEXT_MNT 0x08 43e0007529893c1c064be90bd21422ca0da4a0198eEric Paris 44832cbd9aa1293cba57d06571f5fc8f0917c672afEric Paris#define CONTEXT_STR "context=" 45832cbd9aa1293cba57d06571f5fc8f0917c672afEric Paris#define FSCONTEXT_STR "fscontext=" 46832cbd9aa1293cba57d06571f5fc8f0917c672afEric Paris#define ROOTCONTEXT_STR "rootcontext=" 47832cbd9aa1293cba57d06571f5fc8f0917c672afEric Paris#define DEFCONTEXT_STR "defcontext=" 48832cbd9aa1293cba57d06571f5fc8f0917c672afEric Paris 495778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moorestruct netlbl_lsm_secattr; 50bb22f58087fdf8b617803c9b65bc86c6d26b5115James Morris 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int selinux_enabled; 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int selinux_mls_enabled; 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 543bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore/* Policy capabilities */ 553bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Mooreenum { 563bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore POLICYDB_CAPABILITY_NETPEER, 57b0c636b99997c8594da6a46e166ce4fcf6956fdaEric Paris POLICYDB_CAPABILITY_OPENPERM, 583bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore __POLICYDB_CAPABILITY_MAX 593bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore}; 603bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore#define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1) 613bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore 623bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Mooreextern int selinux_policycap_netpeer; 63b0c636b99997c8594da6a46e166ce4fcf6956fdaEric Parisextern int selinux_policycap_openperm; 643bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore 65b19d8eae99dae42bb747954fdbb2cd456922eb5fEric Parisint security_load_policy(void *data, size_t len); 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 673bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Mooreint security_policycap_supported(unsigned int req_cap); 683bb56b25dbe0a4b44bd2ebceab6736d068e85068Paul Moore 69e47c8fc582a2c9f3cba059e543c4a056cd6bf8c4Christopher J. PeBenito#define SEL_VEC_MAX 32 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct av_decision { 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 allowed; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 decided; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 auditallow; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 auditdeny; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 seqno; 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7864dbf07474d011540ca479a2e87fe998f570d6e3Eric Parisint security_permissive_sid(u32 sid); 7964dbf07474d011540ca479a2e87fe998f570d6e3Eric Paris 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_compute_av(u32 ssid, u32 tsid, 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tclass, u32 requested, 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct av_decision *avd); 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_transition_sid(u32 ssid, u32 tsid, 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tclass, u32 *out_sid); 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_member_sid(u32 ssid, u32 tsid, 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tclass, u32 *out_sid); 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_change_sid(u32 ssid, u32 tsid, 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 tclass, u32 *out_sid); 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_sid_to_context(u32 sid, char **scontext, 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 *scontext_len); 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 9612b29f34558b9b45a2c6eabd4f3c6be939a3980fStephen Smalleyint security_sid_to_context_force(u32 sid, char **scontext, u32 *scontext_len); 9712b29f34558b9b45a2c6eabd4f3c6be939a3980fStephen Smalley 988f0cfa52a1d4ffacd8e7de906d19662f5da58d58David Howellsint security_context_to_sid(const char *scontext, u32 scontext_len, 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 *out_sid); 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1017bf570dc8dcf76df2a9f583bef2da96d4289ed0dDavid Howellsint security_context_to_sid_default(const char *scontext, u32 scontext_len, 102869ab5147e1eead890245cfd4f652ba282b6ac26Stephen Smalley u32 *out_sid, u32 def_sid, gfp_t gfp_flags); 103f5c1d5b2aaf9a98f15a6dcdfbba1f494d0aaae52James Morris 10412b29f34558b9b45a2c6eabd4f3c6be939a3980fStephen Smalleyint security_context_to_sid_force(const char *scontext, u32 scontext_len, 10512b29f34558b9b45a2c6eabd4f3c6be939a3980fStephen Smalley u32 *sid); 10612b29f34558b9b45a2c6eabd4f3c6be939a3980fStephen Smalley 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_get_user_sids(u32 callsid, char *username, 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 **sids, u32 *nel); 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1103e11217263d0521e212cb8a017fbc2a1514db78fPaul Mooreint security_port_sid(u8 protocol, u16 port, u32 *out_sid); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 112e8bfdb9d0dfc1231a6a71e849dfbd4447acdfff6Paul Mooreint security_netif_sid(char *name, u32 *if_sid); 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_node_sid(u16 domain, void *addr, u32 addrlen, 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 *out_sid); 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid, 118b19d8eae99dae42bb747954fdbb2cd456922eb5fEric Paris u16 tclass); 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12008554d6b33e60aa8ee40bbef94505941c0eefef2Venkat Yekkiralaint security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid); 12108554d6b33e60aa8ee40bbef94505941c0eefef2Venkat Yekkirala 122220deb966ea51e0dedb6a187c0763120809f3e64Paul Mooreint security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type, 123220deb966ea51e0dedb6a187c0763120809f3e64Paul Moore u32 xfrm_sid, 124220deb966ea51e0dedb6a187c0763120809f3e64Paul Moore u32 *peer_sid); 125220deb966ea51e0dedb6a187c0763120809f3e64Paul Moore 12655fcf09b3fe4325c9395ebbb0322a547a157ebc7Christopher J. PeBenitoint security_get_classes(char ***classes, int *nclasses); 12755fcf09b3fe4325c9395ebbb0322a547a157ebc7Christopher J. PeBenitoint security_get_permissions(char *class, char ***perms, int *nperms); 1283f12070e27b4a213d62607d2bff139793089a77dEric Parisint security_get_reject_unknown(void); 1293f12070e27b4a213d62607d2bff139793089a77dEric Parisint security_get_allow_unknown(void); 13055fcf09b3fe4325c9395ebbb0322a547a157ebc7Christopher J. PeBenito 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECURITY_FS_USE_XATTR 1 /* use xattr */ 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */ 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */ 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECURITY_FS_USE_GENFS 4 /* use the genfs support */ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECURITY_FS_USE_NONE 5 /* no labeling support */ 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */ 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_fs_use(const char *fstype, unsigned int *behavior, 139089be43e403a78cd6889cde2fba164fefe9dfd89James Morris u32 *sid); 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint security_genfs_sid(const char *fstype, char *name, u16 sclass, 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u32 *sid); 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1445778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore#ifdef CONFIG_NETLABEL 1455778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Mooreint security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr, 1465778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore u32 *sid); 1475778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore 1485778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Mooreint security_netlbl_sid_to_secattr(u32 sid, 1495778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore struct netlbl_lsm_secattr *secattr); 1505778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore#else 1515778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moorestatic inline int security_netlbl_secattr_to_sid( 1525778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore struct netlbl_lsm_secattr *secattr, 1535778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore u32 *sid) 1545778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore{ 1555778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore return -EIDRM; 1565778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore} 1575778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore 1585778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moorestatic inline int security_netlbl_sid_to_secattr(u32 sid, 1595778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore struct netlbl_lsm_secattr *secattr) 1605778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore{ 1615778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore return -ENOENT; 1625778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore} 1635778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore#endif /* CONFIG_NETLABEL */ 1645778eabd9cdbf16ea3e40248c452b4fd25554d11Paul Moore 165f0ee2e467ffa68c3122128b704c1540ee294b748James Carterconst char *security_get_initial_sid_context(u32 sid); 166f0ee2e467ffa68c3122128b704c1540ee294b748James Carter 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* _SELINUX_SECURITY_H_ */ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 169