Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Security server interface. |
| 3 | * |
| 4 | * Author : Stephen Smalley, <sds@epoch.ncsc.mil> |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #ifndef _SELINUX_SECURITY_H_ |
| 9 | #define _SELINUX_SECURITY_H_ |
| 10 | |
| 11 | #include "flask.h" |
| 12 | |
| 13 | #define SECSID_NULL 0x00000000 /* unspecified SID */ |
| 14 | #define SECSID_WILD 0xffffffff /* wildcard SID */ |
| 15 | #define SECCLASS_NULL 0x0000 /* no class */ |
| 16 | |
| 17 | #define SELINUX_MAGIC 0xf97cff8c |
| 18 | |
| 19 | /* Identify specific policy version changes */ |
| 20 | #define POLICYDB_VERSION_BASE 15 |
| 21 | #define POLICYDB_VERSION_BOOL 16 |
| 22 | #define POLICYDB_VERSION_IPV6 17 |
| 23 | #define POLICYDB_VERSION_NLCLASS 18 |
| 24 | #define POLICYDB_VERSION_VALIDATETRANS 19 |
| 25 | #define POLICYDB_VERSION_MLS 19 |
Stephen Smalley | 782ebb9 | 2005-09-03 15:55:16 -0700 | [diff] [blame] | 26 | #define POLICYDB_VERSION_AVTAB 20 |
Darrel Goeddel | f3f8771 | 2006-09-25 23:31:59 -0700 | [diff] [blame] | 27 | #define POLICYDB_VERSION_RANGETRANS 21 |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 28 | #define POLICYDB_VERSION_POLCAP 22 |
Eric Paris | 64dbf07 | 2008-03-31 12:17:33 +1100 | [diff] [blame] | 29 | #define POLICYDB_VERSION_PERMISSIVE 23 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
| 31 | /* Range of policy versions we understand*/ |
| 32 | #define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE |
Stephen Smalley | 016b9bd | 2006-09-25 23:31:58 -0700 | [diff] [blame] | 33 | #ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX |
| 34 | #define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE |
| 35 | #else |
Eric Paris | 64dbf07 | 2008-03-31 12:17:33 +1100 | [diff] [blame] | 36 | #define POLICYDB_VERSION_MAX POLICYDB_VERSION_PERMISSIVE |
Stephen Smalley | 016b9bd | 2006-09-25 23:31:58 -0700 | [diff] [blame] | 37 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 39 | #define CONTEXT_MNT 0x01 |
| 40 | #define FSCONTEXT_MNT 0x02 |
| 41 | #define ROOTCONTEXT_MNT 0x04 |
| 42 | #define DEFCONTEXT_MNT 0x08 |
| 43 | |
Eric Paris | 832cbd9 | 2008-04-01 13:24:09 -0400 | [diff] [blame] | 44 | #define CONTEXT_STR "context=" |
| 45 | #define FSCONTEXT_STR "fscontext=" |
| 46 | #define ROOTCONTEXT_STR "rootcontext=" |
| 47 | #define DEFCONTEXT_STR "defcontext=" |
| 48 | |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 49 | struct netlbl_lsm_secattr; |
James Morris | bb22f58 | 2006-11-17 23:01:03 -0500 | [diff] [blame] | 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | extern int selinux_enabled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | extern int selinux_mls_enabled; |
| 53 | |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 54 | /* Policy capabilities */ |
| 55 | enum { |
| 56 | POLICYDB_CAPABILITY_NETPEER, |
Eric Paris | b0c636b | 2008-02-28 12:58:40 -0500 | [diff] [blame] | 57 | POLICYDB_CAPABILITY_OPENPERM, |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 58 | __POLICYDB_CAPABILITY_MAX |
| 59 | }; |
| 60 | #define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1) |
| 61 | |
| 62 | extern int selinux_policycap_netpeer; |
Eric Paris | b0c636b | 2008-02-28 12:58:40 -0500 | [diff] [blame] | 63 | extern int selinux_policycap_openperm; |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 64 | |
Eric Paris | b19d8ea | 2008-04-22 17:46:11 -0400 | [diff] [blame] | 65 | int security_load_policy(void *data, size_t len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 67 | int security_policycap_supported(unsigned int req_cap); |
| 68 | |
Christopher J. PeBenito | e47c8fc | 2007-05-23 09:12:09 -0400 | [diff] [blame] | 69 | #define SEL_VEC_MAX 32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | struct av_decision { |
| 71 | u32 allowed; |
| 72 | u32 decided; |
| 73 | u32 auditallow; |
| 74 | u32 auditdeny; |
| 75 | u32 seqno; |
| 76 | }; |
| 77 | |
Eric Paris | 64dbf07 | 2008-03-31 12:17:33 +1100 | [diff] [blame] | 78 | int security_permissive_sid(u32 sid); |
| 79 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | int security_compute_av(u32 ssid, u32 tsid, |
| 81 | u16 tclass, u32 requested, |
| 82 | struct av_decision *avd); |
| 83 | |
| 84 | int security_transition_sid(u32 ssid, u32 tsid, |
| 85 | u16 tclass, u32 *out_sid); |
| 86 | |
| 87 | int security_member_sid(u32 ssid, u32 tsid, |
| 88 | u16 tclass, u32 *out_sid); |
| 89 | |
| 90 | int security_change_sid(u32 ssid, u32 tsid, |
| 91 | u16 tclass, u32 *out_sid); |
| 92 | |
| 93 | int security_sid_to_context(u32 sid, char **scontext, |
| 94 | u32 *scontext_len); |
| 95 | |
Stephen Smalley | 12b29f3 | 2008-05-07 13:03:20 -0400 | [diff] [blame] | 96 | int security_sid_to_context_force(u32 sid, char **scontext, u32 *scontext_len); |
| 97 | |
David Howells | 8f0cfa5 | 2008-04-29 00:59:41 -0700 | [diff] [blame] | 98 | int security_context_to_sid(const char *scontext, u32 scontext_len, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | u32 *out_sid); |
| 100 | |
David Howells | 7bf570d | 2008-04-29 20:52:51 +0100 | [diff] [blame] | 101 | int security_context_to_sid_default(const char *scontext, u32 scontext_len, |
Stephen Smalley | 869ab51 | 2008-04-04 08:46:05 -0400 | [diff] [blame] | 102 | u32 *out_sid, u32 def_sid, gfp_t gfp_flags); |
James Morris | f5c1d5b | 2005-07-28 01:07:37 -0700 | [diff] [blame] | 103 | |
Stephen Smalley | 12b29f3 | 2008-05-07 13:03:20 -0400 | [diff] [blame] | 104 | int security_context_to_sid_force(const char *scontext, u32 scontext_len, |
| 105 | u32 *sid); |
| 106 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | int security_get_user_sids(u32 callsid, char *username, |
| 108 | u32 **sids, u32 *nel); |
| 109 | |
Paul Moore | 3e11217 | 2008-04-10 10:48:14 -0400 | [diff] [blame] | 110 | int security_port_sid(u8 protocol, u16 port, u32 *out_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Paul Moore | e8bfdb9 | 2008-01-29 08:38:08 -0500 | [diff] [blame] | 112 | int security_netif_sid(char *name, u32 *if_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
| 114 | int security_node_sid(u16 domain, void *addr, u32 addrlen, |
| 115 | u32 *out_sid); |
| 116 | |
| 117 | int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid, |
Eric Paris | b19d8ea | 2008-04-22 17:46:11 -0400 | [diff] [blame] | 118 | u16 tclass); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Venkat Yekkirala | 08554d6 | 2006-07-24 23:27:16 -0700 | [diff] [blame] | 120 | int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid); |
| 121 | |
Paul Moore | 220deb9 | 2008-01-29 08:38:23 -0500 | [diff] [blame] | 122 | int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type, |
| 123 | u32 xfrm_sid, |
| 124 | u32 *peer_sid); |
| 125 | |
Christopher J. PeBenito | 55fcf09 | 2007-05-23 09:12:06 -0400 | [diff] [blame] | 126 | int security_get_classes(char ***classes, int *nclasses); |
| 127 | int security_get_permissions(char *class, char ***perms, int *nperms); |
Eric Paris | 3f12070 | 2007-09-21 14:37:10 -0400 | [diff] [blame] | 128 | int security_get_reject_unknown(void); |
| 129 | int security_get_allow_unknown(void); |
Christopher J. PeBenito | 55fcf09 | 2007-05-23 09:12:06 -0400 | [diff] [blame] | 130 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | #define SECURITY_FS_USE_XATTR 1 /* use xattr */ |
| 132 | #define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */ |
| 133 | #define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */ |
| 134 | #define SECURITY_FS_USE_GENFS 4 /* use the genfs support */ |
| 135 | #define SECURITY_FS_USE_NONE 5 /* no labeling support */ |
| 136 | #define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */ |
| 137 | |
| 138 | int security_fs_use(const char *fstype, unsigned int *behavior, |
James Morris | 089be43 | 2008-07-15 18:32:49 +1000 | [diff] [blame^] | 139 | u32 *sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | |
| 141 | int security_genfs_sid(const char *fstype, char *name, u16 sclass, |
| 142 | u32 *sid); |
| 143 | |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 144 | #ifdef CONFIG_NETLABEL |
| 145 | int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr, |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 146 | u32 *sid); |
| 147 | |
| 148 | int security_netlbl_sid_to_secattr(u32 sid, |
| 149 | struct netlbl_lsm_secattr *secattr); |
| 150 | #else |
| 151 | static inline int security_netlbl_secattr_to_sid( |
| 152 | struct netlbl_lsm_secattr *secattr, |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 153 | u32 *sid) |
| 154 | { |
| 155 | return -EIDRM; |
| 156 | } |
| 157 | |
| 158 | static inline int security_netlbl_sid_to_secattr(u32 sid, |
| 159 | struct netlbl_lsm_secattr *secattr) |
| 160 | { |
| 161 | return -ENOENT; |
| 162 | } |
| 163 | #endif /* CONFIG_NETLABEL */ |
| 164 | |
James Carter | f0ee2e4 | 2007-04-04 10:11:29 -0400 | [diff] [blame] | 165 | const char *security_get_initial_sid_context(u32 sid); |
| 166 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | #endif /* _SELINUX_SECURITY_H_ */ |
| 168 | |