Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Security server interface. |
| 4 | * |
Stephen Smalley | 7efbb60 | 2017-08-17 13:32:36 -0400 | [diff] [blame] | 5 | * Author : Stephen Smalley, <sds@tycho.nsa.gov> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | */ |
| 8 | |
| 9 | #ifndef _SELINUX_SECURITY_H_ |
| 10 | #define _SELINUX_SECURITY_H_ |
| 11 | |
Gideon Israel Dsouza | 4bb9398 | 2014-06-11 21:25:30 +0530 | [diff] [blame] | 12 | #include <linux/compiler.h> |
Eric Paris | 652bb9b | 2011-02-01 11:05:40 -0500 | [diff] [blame] | 13 | #include <linux/dcache.h> |
Eric Paris | 75834fc | 2009-05-18 10:26:10 -0400 | [diff] [blame] | 14 | #include <linux/magic.h> |
Eric Paris | 2606fd1 | 2010-10-13 16:24:41 -0400 | [diff] [blame] | 15 | #include <linux/types.h> |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 16 | #include <linux/refcount.h> |
| 17 | #include <linux/workqueue.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "flask.h" |
| 19 | |
| 20 | #define SECSID_NULL 0x00000000 /* unspecified SID */ |
| 21 | #define SECSID_WILD 0xffffffff /* wildcard SID */ |
| 22 | #define SECCLASS_NULL 0x0000 /* no class */ |
| 23 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | /* Identify specific policy version changes */ |
| 25 | #define POLICYDB_VERSION_BASE 15 |
| 26 | #define POLICYDB_VERSION_BOOL 16 |
| 27 | #define POLICYDB_VERSION_IPV6 17 |
| 28 | #define POLICYDB_VERSION_NLCLASS 18 |
| 29 | #define POLICYDB_VERSION_VALIDATETRANS 19 |
| 30 | #define POLICYDB_VERSION_MLS 19 |
Stephen Smalley | 782ebb9 | 2005-09-03 15:55:16 -0700 | [diff] [blame] | 31 | #define POLICYDB_VERSION_AVTAB 20 |
Darrel Goeddel | f3f8771 | 2006-09-25 23:31:59 -0700 | [diff] [blame] | 32 | #define POLICYDB_VERSION_RANGETRANS 21 |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 33 | #define POLICYDB_VERSION_POLCAP 22 |
Eric Paris | 64dbf07 | 2008-03-31 12:17:33 +1100 | [diff] [blame] | 34 | #define POLICYDB_VERSION_PERMISSIVE 23 |
KaiGai Kohei | d9250de | 2008-08-28 16:35:57 +0900 | [diff] [blame] | 35 | #define POLICYDB_VERSION_BOUNDARY 24 |
Eric Paris | 652bb9b | 2011-02-01 11:05:40 -0500 | [diff] [blame] | 36 | #define POLICYDB_VERSION_FILENAME_TRANS 25 |
Harry Ciao | 8023976 | 2011-03-25 13:51:56 +0800 | [diff] [blame] | 37 | #define POLICYDB_VERSION_ROLETRANS 26 |
Eric Paris | aa89326 | 2012-03-20 14:35:12 -0400 | [diff] [blame] | 38 | #define POLICYDB_VERSION_NEW_OBJECT_DEFAULTS 27 |
Eric Paris | eed7795 | 2012-03-20 14:35:12 -0400 | [diff] [blame] | 39 | #define POLICYDB_VERSION_DEFAULT_TYPE 28 |
Richard Haines | a660bec | 2013-11-19 17:34:23 -0500 | [diff] [blame] | 40 | #define POLICYDB_VERSION_CONSTRAINT_NAMES 29 |
Jeff Vander Stoep | fa1aa14 | 2015-07-10 17:19:56 -0400 | [diff] [blame] | 41 | #define POLICYDB_VERSION_XPERMS_IOCTL 30 |
Daniel Jurgens | a806f7a | 2017-05-19 15:48:55 +0300 | [diff] [blame] | 42 | #define POLICYDB_VERSION_INFINIBAND 31 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
| 44 | /* Range of policy versions we understand*/ |
| 45 | #define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE |
Daniel Jurgens | a806f7a | 2017-05-19 15:48:55 +0300 | [diff] [blame] | 46 | #define POLICYDB_VERSION_MAX POLICYDB_VERSION_INFINIBAND |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
David P. Quigley | 0d90a7e | 2009-01-16 09:22:02 -0500 | [diff] [blame] | 48 | /* Mask for just the mount related flags */ |
| 49 | #define SE_MNTMASK 0x0f |
| 50 | /* Super block security struct flags for mount options */ |
Eric Paris | cfca030 | 2012-10-09 16:20:08 -0400 | [diff] [blame] | 51 | /* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */ |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 52 | #define CONTEXT_MNT 0x01 |
| 53 | #define FSCONTEXT_MNT 0x02 |
| 54 | #define ROOTCONTEXT_MNT 0x04 |
| 55 | #define DEFCONTEXT_MNT 0x08 |
Eric Paris | cfca030 | 2012-10-09 16:20:08 -0400 | [diff] [blame] | 56 | #define SBLABEL_MNT 0x10 |
David P. Quigley | 0d90a7e | 2009-01-16 09:22:02 -0500 | [diff] [blame] | 57 | /* Non-mount related flags */ |
Eric Paris | cfca030 | 2012-10-09 16:20:08 -0400 | [diff] [blame] | 58 | #define SE_SBINITIALIZED 0x0100 |
| 59 | #define SE_SBPROC 0x0200 |
Stephen Smalley | 134509d | 2015-06-04 16:22:17 -0400 | [diff] [blame] | 60 | #define SE_SBGENFS 0x0400 |
Eric Paris | e000752 | 2008-03-05 10:31:54 -0500 | [diff] [blame] | 61 | |
Eric Paris | 832cbd9 | 2008-04-01 13:24:09 -0400 | [diff] [blame] | 62 | #define CONTEXT_STR "context=" |
| 63 | #define FSCONTEXT_STR "fscontext=" |
| 64 | #define ROOTCONTEXT_STR "rootcontext=" |
| 65 | #define DEFCONTEXT_STR "defcontext=" |
David P. Quigley | 11689d4 | 2009-01-16 09:22:03 -0500 | [diff] [blame] | 66 | #define LABELSUPP_STR "seclabel" |
Eric Paris | 832cbd9 | 2008-04-01 13:24:09 -0400 | [diff] [blame] | 67 | |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 68 | struct netlbl_lsm_secattr; |
James Morris | bb22f58 | 2006-11-17 23:01:03 -0500 | [diff] [blame] | 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | extern int selinux_enabled; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 72 | /* Policy capabilities */ |
| 73 | enum { |
| 74 | POLICYDB_CAPABILITY_NETPEER, |
Eric Paris | b0c636b | 2008-02-28 12:58:40 -0500 | [diff] [blame] | 75 | POLICYDB_CAPABILITY_OPENPERM, |
Stephen Smalley | da69a53 | 2017-01-09 10:07:30 -0500 | [diff] [blame] | 76 | POLICYDB_CAPABILITY_EXTSOCKCLASS, |
Chris PeBenito | 2be4d74 | 2013-05-03 09:05:39 -0400 | [diff] [blame] | 77 | POLICYDB_CAPABILITY_ALWAYSNETWORK, |
Stephen Smalley | 2651225b | 2017-02-28 10:35:56 -0500 | [diff] [blame] | 78 | POLICYDB_CAPABILITY_CGROUPSECLABEL, |
Stephen Smalley | af63f41 | 2017-07-31 10:12:46 -0400 | [diff] [blame] | 79 | POLICYDB_CAPABILITY_NNP_NOSUID_TRANSITION, |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 80 | __POLICYDB_CAPABILITY_MAX |
| 81 | }; |
| 82 | #define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1) |
| 83 | |
Stephen Smalley | 4dc2fce | 2017-05-18 16:58:31 -0400 | [diff] [blame] | 84 | extern char *selinux_policycap_names[__POLICYDB_CAPABILITY_MAX]; |
| 85 | |
KaiGai Kohei | d9250de | 2008-08-28 16:35:57 +0900 | [diff] [blame] | 86 | /* |
| 87 | * type_datum properties |
| 88 | * available at the kernel policy version >= POLICYDB_VERSION_BOUNDARY |
| 89 | */ |
| 90 | #define TYPEDATUM_PROPERTY_PRIMARY 0x0001 |
| 91 | #define TYPEDATUM_PROPERTY_ATTRIBUTE 0x0002 |
| 92 | |
| 93 | /* limitation of boundary depth */ |
| 94 | #define POLICYDB_BOUNDS_MAXDEPTH 4 |
| 95 | |
Stephen Smalley | 6b6bc62 | 2018-03-05 11:47:56 -0500 | [diff] [blame] | 96 | struct selinux_avc; |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 97 | struct selinux_ss; |
Guido Trentalancia | 0719aaf | 2010-02-03 16:40:20 +0100 | [diff] [blame] | 98 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 99 | struct selinux_state { |
| 100 | bool disabled; |
| 101 | #ifdef CONFIG_SECURITY_SELINUX_DEVELOP |
| 102 | bool enforcing; |
| 103 | #endif |
| 104 | bool checkreqprot; |
| 105 | bool initialized; |
| 106 | bool policycap[__POLICYDB_CAPABILITY_MAX]; |
Stephen Smalley | 6b6bc62 | 2018-03-05 11:47:56 -0500 | [diff] [blame] | 107 | struct selinux_avc *avc; |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 108 | struct selinux_ss *ss; |
| 109 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 111 | void selinux_ss_init(struct selinux_ss **ss); |
Stephen Smalley | 6b6bc62 | 2018-03-05 11:47:56 -0500 | [diff] [blame] | 112 | void selinux_avc_init(struct selinux_avc **avc); |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 113 | |
| 114 | extern struct selinux_state selinux_state; |
| 115 | |
| 116 | #ifdef CONFIG_SECURITY_SELINUX_DEVELOP |
Paul Moore | e5a5ca9 | 2018-03-01 17:38:30 -0500 | [diff] [blame] | 117 | static inline bool enforcing_enabled(struct selinux_state *state) |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 118 | { |
| 119 | return state->enforcing; |
| 120 | } |
| 121 | |
Paul Moore | e5a5ca9 | 2018-03-01 17:38:30 -0500 | [diff] [blame] | 122 | static inline void enforcing_set(struct selinux_state *state, bool value) |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 123 | { |
| 124 | state->enforcing = value; |
| 125 | } |
| 126 | #else |
Paul Moore | e5a5ca9 | 2018-03-01 17:38:30 -0500 | [diff] [blame] | 127 | static inline bool enforcing_enabled(struct selinux_state *state) |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 128 | { |
| 129 | return true; |
| 130 | } |
| 131 | |
Paul Moore | e5a5ca9 | 2018-03-01 17:38:30 -0500 | [diff] [blame] | 132 | static inline void enforcing_set(struct selinux_state *state, bool value) |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 133 | { |
| 134 | } |
| 135 | #endif |
| 136 | |
| 137 | static inline bool selinux_policycap_netpeer(void) |
| 138 | { |
| 139 | struct selinux_state *state = &selinux_state; |
| 140 | |
| 141 | return state->policycap[POLICYDB_CAPABILITY_NETPEER]; |
| 142 | } |
| 143 | |
| 144 | static inline bool selinux_policycap_openperm(void) |
| 145 | { |
| 146 | struct selinux_state *state = &selinux_state; |
| 147 | |
| 148 | return state->policycap[POLICYDB_CAPABILITY_OPENPERM]; |
| 149 | } |
| 150 | |
| 151 | static inline bool selinux_policycap_extsockclass(void) |
| 152 | { |
| 153 | struct selinux_state *state = &selinux_state; |
| 154 | |
| 155 | return state->policycap[POLICYDB_CAPABILITY_EXTSOCKCLASS]; |
| 156 | } |
| 157 | |
| 158 | static inline bool selinux_policycap_alwaysnetwork(void) |
| 159 | { |
| 160 | struct selinux_state *state = &selinux_state; |
| 161 | |
| 162 | return state->policycap[POLICYDB_CAPABILITY_ALWAYSNETWORK]; |
| 163 | } |
| 164 | |
| 165 | static inline bool selinux_policycap_cgroupseclabel(void) |
| 166 | { |
| 167 | struct selinux_state *state = &selinux_state; |
| 168 | |
| 169 | return state->policycap[POLICYDB_CAPABILITY_CGROUPSECLABEL]; |
| 170 | } |
| 171 | |
| 172 | static inline bool selinux_policycap_nnp_nosuid_transition(void) |
| 173 | { |
| 174 | struct selinux_state *state = &selinux_state; |
| 175 | |
| 176 | return state->policycap[POLICYDB_CAPABILITY_NNP_NOSUID_TRANSITION]; |
| 177 | } |
| 178 | |
| 179 | int security_mls_enabled(struct selinux_state *state); |
| 180 | int security_load_policy(struct selinux_state *state, |
| 181 | void *data, size_t len); |
| 182 | int security_read_policy(struct selinux_state *state, |
| 183 | void **data, size_t *len); |
| 184 | size_t security_policydb_len(struct selinux_state *state); |
| 185 | |
| 186 | int security_policycap_supported(struct selinux_state *state, |
| 187 | unsigned int req_cap); |
Paul Moore | 3bb56b2 | 2008-01-29 08:38:19 -0500 | [diff] [blame] | 188 | |
Christopher J. PeBenito | e47c8fc | 2007-05-23 09:12:09 -0400 | [diff] [blame] | 189 | #define SEL_VEC_MAX 32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | struct av_decision { |
| 191 | u32 allowed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | u32 auditallow; |
| 193 | u32 auditdeny; |
| 194 | u32 seqno; |
KaiGai Kohei | 8a6f83a | 2009-04-01 10:07:57 +0900 | [diff] [blame] | 195 | u32 flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | }; |
| 197 | |
Jeff Vander Stoep | fa1aa14 | 2015-07-10 17:19:56 -0400 | [diff] [blame] | 198 | #define XPERMS_ALLOWED 1 |
| 199 | #define XPERMS_AUDITALLOW 2 |
| 200 | #define XPERMS_DONTAUDIT 4 |
| 201 | |
| 202 | #define security_xperm_set(perms, x) (perms[x >> 5] |= 1 << (x & 0x1f)) |
| 203 | #define security_xperm_test(perms, x) (1 & (perms[x >> 5] >> (x & 0x1f))) |
| 204 | struct extended_perms_data { |
| 205 | u32 p[8]; |
| 206 | }; |
| 207 | |
| 208 | struct extended_perms_decision { |
| 209 | u8 used; |
| 210 | u8 driver; |
| 211 | struct extended_perms_data *allowed; |
| 212 | struct extended_perms_data *auditallow; |
| 213 | struct extended_perms_data *dontaudit; |
| 214 | }; |
| 215 | |
| 216 | struct extended_perms { |
| 217 | u16 len; /* length associated decision chain */ |
| 218 | struct extended_perms_data drivers; /* flag drivers that are used */ |
| 219 | }; |
| 220 | |
KaiGai Kohei | 8a6f83a | 2009-04-01 10:07:57 +0900 | [diff] [blame] | 221 | /* definitions of av_decision.flags */ |
| 222 | #define AVD_FLAGS_PERMISSIVE 0x0001 |
Eric Paris | 64dbf07 | 2008-03-31 12:17:33 +1100 | [diff] [blame] | 223 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 224 | void security_compute_av(struct selinux_state *state, |
| 225 | u32 ssid, u32 tsid, |
Jeff Vander Stoep | fa1aa14 | 2015-07-10 17:19:56 -0400 | [diff] [blame] | 226 | u16 tclass, struct av_decision *avd, |
| 227 | struct extended_perms *xperms); |
| 228 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 229 | void security_compute_xperms_decision(struct selinux_state *state, |
| 230 | u32 ssid, u32 tsid, u16 tclass, |
| 231 | u8 driver, |
| 232 | struct extended_perms_decision *xpermd); |
Stephen Smalley | c6d3aaa | 2009-09-30 13:37:50 -0400 | [diff] [blame] | 233 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 234 | void security_compute_av_user(struct selinux_state *state, |
| 235 | u32 ssid, u32 tsid, |
| 236 | u16 tclass, struct av_decision *avd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 238 | int security_transition_sid(struct selinux_state *state, |
| 239 | u32 ssid, u32 tsid, u16 tclass, |
Eric Paris | 652bb9b | 2011-02-01 11:05:40 -0500 | [diff] [blame] | 240 | const struct qstr *qstr, u32 *out_sid); |
Stephen Smalley | c6d3aaa | 2009-09-30 13:37:50 -0400 | [diff] [blame] | 241 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 242 | int security_transition_sid_user(struct selinux_state *state, |
| 243 | u32 ssid, u32 tsid, u16 tclass, |
Kohei Kaigai | f50a3ec | 2011-04-01 15:39:26 +0100 | [diff] [blame] | 244 | const char *objname, u32 *out_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 246 | int security_member_sid(struct selinux_state *state, u32 ssid, u32 tsid, |
| 247 | u16 tclass, u32 *out_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 249 | int security_change_sid(struct selinux_state *state, u32 ssid, u32 tsid, |
| 250 | u16 tclass, u32 *out_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 252 | int security_sid_to_context(struct selinux_state *state, u32 sid, |
| 253 | char **scontext, u32 *scontext_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 255 | int security_sid_to_context_force(struct selinux_state *state, |
| 256 | u32 sid, char **scontext, u32 *scontext_len); |
Stephen Smalley | 12b29f3 | 2008-05-07 13:03:20 -0400 | [diff] [blame] | 257 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 258 | int security_context_to_sid(struct selinux_state *state, |
| 259 | const char *scontext, u32 scontext_len, |
Nikolay Aleksandrov | 52a4c64 | 2014-03-07 12:44:19 +0100 | [diff] [blame] | 260 | u32 *out_sid, gfp_t gfp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 262 | int security_context_str_to_sid(struct selinux_state *state, |
| 263 | const char *scontext, u32 *out_sid, gfp_t gfp); |
Rasmus Villemoes | 44be2f6 | 2015-10-21 17:44:25 -0400 | [diff] [blame] | 264 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 265 | int security_context_to_sid_default(struct selinux_state *state, |
| 266 | const char *scontext, u32 scontext_len, |
Stephen Smalley | 869ab51 | 2008-04-04 08:46:05 -0400 | [diff] [blame] | 267 | u32 *out_sid, u32 def_sid, gfp_t gfp_flags); |
James Morris | f5c1d5b | 2005-07-28 01:07:37 -0700 | [diff] [blame] | 268 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 269 | int security_context_to_sid_force(struct selinux_state *state, |
| 270 | const char *scontext, u32 scontext_len, |
Stephen Smalley | 12b29f3 | 2008-05-07 13:03:20 -0400 | [diff] [blame] | 271 | u32 *sid); |
| 272 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 273 | int security_get_user_sids(struct selinux_state *state, |
| 274 | u32 callsid, char *username, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | u32 **sids, u32 *nel); |
| 276 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 277 | int security_port_sid(struct selinux_state *state, |
| 278 | u8 protocol, u16 port, u32 *out_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 280 | int security_ib_pkey_sid(struct selinux_state *state, |
| 281 | u64 subnet_prefix, u16 pkey_num, u32 *out_sid); |
Daniel Jurgens | cfc4d88 | 2017-05-19 15:48:57 +0300 | [diff] [blame] | 282 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 283 | int security_ib_endport_sid(struct selinux_state *state, |
| 284 | const char *dev_name, u8 port_num, u32 *out_sid); |
Daniel Jurgens | ab861df | 2017-05-19 15:48:58 +0300 | [diff] [blame] | 285 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 286 | int security_netif_sid(struct selinux_state *state, |
| 287 | char *name, u32 *if_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 289 | int security_node_sid(struct selinux_state *state, |
| 290 | u16 domain, void *addr, u32 addrlen, |
| 291 | u32 *out_sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 293 | int security_validate_transition(struct selinux_state *state, |
| 294 | u32 oldsid, u32 newsid, u32 tasksid, |
Eric Paris | b19d8ea | 2008-04-22 17:46:11 -0400 | [diff] [blame] | 295 | u16 tclass); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 297 | int security_validate_transition_user(struct selinux_state *state, |
| 298 | u32 oldsid, u32 newsid, u32 tasksid, |
Andrew Perepechko | f9df645 | 2015-12-24 11:09:41 -0500 | [diff] [blame] | 299 | u16 tclass); |
| 300 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 301 | int security_bounded_transition(struct selinux_state *state, |
| 302 | u32 oldsid, u32 newsid); |
KaiGai Kohei | d9250de | 2008-08-28 16:35:57 +0900 | [diff] [blame] | 303 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 304 | int security_sid_mls_copy(struct selinux_state *state, |
| 305 | u32 sid, u32 mls_sid, u32 *new_sid); |
Venkat Yekkirala | 08554d6 | 2006-07-24 23:27:16 -0700 | [diff] [blame] | 306 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 307 | int security_net_peersid_resolve(struct selinux_state *state, |
| 308 | u32 nlbl_sid, u32 nlbl_type, |
Paul Moore | 220deb9 | 2008-01-29 08:38:23 -0500 | [diff] [blame] | 309 | u32 xfrm_sid, |
| 310 | u32 *peer_sid); |
| 311 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 312 | int security_get_classes(struct selinux_state *state, |
| 313 | char ***classes, int *nclasses); |
| 314 | int security_get_permissions(struct selinux_state *state, |
| 315 | char *class, char ***perms, int *nperms); |
| 316 | int security_get_reject_unknown(struct selinux_state *state); |
| 317 | int security_get_allow_unknown(struct selinux_state *state); |
Christopher J. PeBenito | 55fcf09 | 2007-05-23 09:12:06 -0400 | [diff] [blame] | 318 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | #define SECURITY_FS_USE_XATTR 1 /* use xattr */ |
| 320 | #define SECURITY_FS_USE_TRANS 2 /* use transition SIDs, e.g. devpts/tmpfs */ |
| 321 | #define SECURITY_FS_USE_TASK 3 /* use task SIDs, e.g. pipefs/sockfs */ |
| 322 | #define SECURITY_FS_USE_GENFS 4 /* use the genfs support */ |
| 323 | #define SECURITY_FS_USE_NONE 5 /* no labeling support */ |
| 324 | #define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */ |
David Quigley | eb9ae68 | 2013-05-22 12:50:37 -0400 | [diff] [blame] | 325 | #define SECURITY_FS_USE_NATIVE 7 /* use native label support */ |
| 326 | #define SECURITY_FS_USE_MAX 7 /* Highest SECURITY_FS_USE_XXX */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 328 | int security_fs_use(struct selinux_state *state, struct super_block *sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 330 | int security_genfs_sid(struct selinux_state *state, |
| 331 | const char *fstype, char *name, u16 sclass, |
| 332 | u32 *sid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 334 | #ifdef CONFIG_NETLABEL |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 335 | int security_netlbl_secattr_to_sid(struct selinux_state *state, |
| 336 | struct netlbl_lsm_secattr *secattr, |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 337 | u32 *sid); |
| 338 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 339 | int security_netlbl_sid_to_secattr(struct selinux_state *state, |
| 340 | u32 sid, |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 341 | struct netlbl_lsm_secattr *secattr); |
| 342 | #else |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 343 | static inline int security_netlbl_secattr_to_sid(struct selinux_state *state, |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 344 | struct netlbl_lsm_secattr *secattr, |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 345 | u32 *sid) |
| 346 | { |
| 347 | return -EIDRM; |
| 348 | } |
| 349 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 350 | static inline int security_netlbl_sid_to_secattr(struct selinux_state *state, |
| 351 | u32 sid, |
| 352 | struct netlbl_lsm_secattr *secattr) |
Paul Moore | 5778eab | 2007-02-28 15:14:22 -0500 | [diff] [blame] | 353 | { |
| 354 | return -ENOENT; |
| 355 | } |
| 356 | #endif /* CONFIG_NETLABEL */ |
| 357 | |
James Carter | f0ee2e4 | 2007-04-04 10:11:29 -0400 | [diff] [blame] | 358 | const char *security_get_initial_sid_context(u32 sid); |
| 359 | |
KaiGai Kohei | 1190416 | 2010-09-14 18:28:39 +0900 | [diff] [blame] | 360 | /* |
| 361 | * status notifier using mmap interface |
| 362 | */ |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 363 | extern struct page *selinux_kernel_status_page(struct selinux_state *state); |
KaiGai Kohei | 1190416 | 2010-09-14 18:28:39 +0900 | [diff] [blame] | 364 | |
| 365 | #define SELINUX_KERNEL_STATUS_VERSION 1 |
KaiGai Kohei | 36f7f28 | 2010-09-30 11:49:55 +0900 | [diff] [blame] | 366 | struct selinux_kernel_status { |
KaiGai Kohei | 1190416 | 2010-09-14 18:28:39 +0900 | [diff] [blame] | 367 | u32 version; /* version number of thie structure */ |
| 368 | u32 sequence; /* sequence number of seqlock logic */ |
| 369 | u32 enforcing; /* current setting of enforcing mode */ |
| 370 | u32 policyload; /* times of policy reloaded */ |
| 371 | u32 deny_unknown; /* current setting of deny_unknown */ |
| 372 | /* |
| 373 | * The version > 0 supports above members. |
| 374 | */ |
Gideon Israel Dsouza | 4bb9398 | 2014-06-11 21:25:30 +0530 | [diff] [blame] | 375 | } __packed; |
KaiGai Kohei | 1190416 | 2010-09-14 18:28:39 +0900 | [diff] [blame] | 376 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 377 | extern void selinux_status_update_setenforce(struct selinux_state *state, |
| 378 | int enforcing); |
| 379 | extern void selinux_status_update_policyload(struct selinux_state *state, |
| 380 | int seqno); |
James Morris | cc59a58 | 2011-08-17 11:13:31 +1000 | [diff] [blame] | 381 | extern void selinux_complete_init(void); |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 382 | extern int selinux_disable(struct selinux_state *state); |
James Morris | ad3fa08 | 2011-08-30 10:50:12 +1000 | [diff] [blame] | 383 | extern void exit_sel_fs(void); |
Al Viro | 765927b | 2012-06-26 21:58:53 +0400 | [diff] [blame] | 384 | extern struct path selinux_null; |
James Morris | ad3fa08 | 2011-08-30 10:50:12 +1000 | [diff] [blame] | 385 | extern struct vfsmount *selinuxfs_mount; |
James Morris | 6a3fbe8 | 2011-08-30 12:09:15 +1000 | [diff] [blame] | 386 | extern void selnl_notify_setenforce(int val); |
| 387 | extern void selnl_notify_policyload(u32 seqno); |
| 388 | extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm); |
KaiGai Kohei | 1190416 | 2010-09-14 18:28:39 +0900 | [diff] [blame] | 389 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 390 | extern void avtab_cache_init(void); |
| 391 | extern void ebitmap_cache_init(void); |
| 392 | extern void hashtab_cache_init(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
Stephen Smalley | aa8e712 | 2018-03-01 18:48:02 -0500 | [diff] [blame] | 394 | #endif /* _SELINUX_SECURITY_H_ */ |