| /* |
| * Security server interface. |
| * |
| * Author : Stephen Smalley, <sds@epoch.ncsc.mil> |
| * |
| */ |
| |
| #ifndef _SELINUX_SECURITY_H_ |
| #define _SELINUX_SECURITY_H_ |
| |
| #include <linux/dcache.h> |
| #include <linux/magic.h> |
| #include <linux/types.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 |
| #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 |
| |
| /* 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_CONSTRAINT_NAMES |
| #endif |
| |
| /* 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 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; |
| |
| /* Policy capabilities */ |
| enum { |
| POLICYDB_CAPABILITY_NETPEER, |
| POLICYDB_CAPABILITY_OPENPERM, |
| POLICYDB_CAPABILITY_REDHAT1, |
| POLICYDB_CAPABILITY_ALWAYSNETWORK, |
| __POLICYDB_CAPABILITY_MAX |
| }; |
| #define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1) |
| |
| extern int selinux_policycap_netpeer; |
| extern int selinux_policycap_openperm; |
| extern int selinux_policycap_alwaysnetwork; |
| |
| /* |
| * 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_mls_enabled(void); |
| |
| int security_load_policy(void *data, size_t len); |
| int security_read_policy(void **data, size_t *len); |
| size_t security_policydb_len(void); |
| |
| 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 |
| |
| void security_compute_av(u32 ssid, u32 tsid, |
| u16 tclass, struct av_decision *avd); |
| |
| 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_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 */ |
| #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, 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); |
| |
| /* |
| * 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 thie 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. |
| */ |
| } __attribute__((packed)); |
| |
| extern void selinux_status_update_setenforce(int enforcing); |
| extern void selinux_status_update_policyload(int seqno); |
| extern void selinux_complete_init(void); |
| extern int selinux_disable(void); |
| extern void exit_sel_fs(void); |
| extern struct path selinux_null; |
| extern struct vfsmount *selinuxfs_mount; |
| 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); |
| |
| #endif /* _SELINUX_SECURITY_H_ */ |
| |
