1/* 2 * Multi-level security (MLS) policy operations. 3 * 4 * Author : Stephen Smalley, <sds@epoch.ncsc.mil> 5 */ 6/* 7 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com> 8 * 9 * Support for enhanced MLS infrastructure. 10 * 11 * Copyright (C) 2004-2006 Trusted Computer Solutions, Inc. 12 */ 13/* 14 * Updated: Hewlett-Packard <paul.moore@hp.com> 15 * 16 * Added support to import/export the MLS label from NetLabel 17 * 18 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006 19 */ 20 21#ifndef _SS_MLS_H_ 22#define _SS_MLS_H_ 23 24#include "context.h" 25#include "policydb.h" 26 27int mls_compute_context_len(struct context *context); 28void mls_sid_to_context(struct context *context, char **scontext); 29int mls_context_isvalid(struct policydb *p, struct context *c); 30 31int mls_context_to_sid(char oldc, 32 char **scontext, 33 struct context *context, 34 struct sidtab *s, 35 u32 def_sid); 36 37int mls_from_string(char *str, struct context *context, gfp_t gfp_mask); 38 39int mls_convert_context(struct policydb *oldp, 40 struct policydb *newp, 41 struct context *context); 42 43int mls_compute_sid(struct context *scontext, 44 struct context *tcontext, 45 u16 tclass, 46 u32 specified, 47 struct context *newcontext); 48 49int mls_setup_user_range(struct context *fromcon, struct user_datum *user, 50 struct context *usercon); 51 52#ifdef CONFIG_NETLABEL 53void mls_export_netlbl_lvl(struct context *context, 54 struct netlbl_lsm_secattr *secattr); 55void mls_import_netlbl_lvl(struct context *context, 56 struct netlbl_lsm_secattr *secattr); 57int mls_export_netlbl_cat(struct context *context, 58 struct netlbl_lsm_secattr *secattr); 59int mls_import_netlbl_cat(struct context *context, 60 struct netlbl_lsm_secattr *secattr); 61#else 62static inline void mls_export_netlbl_lvl(struct context *context, 63 struct netlbl_lsm_secattr *secattr) 64{ 65 return; 66} 67static inline void mls_import_netlbl_lvl(struct context *context, 68 struct netlbl_lsm_secattr *secattr) 69{ 70 return; 71} 72static inline int mls_export_netlbl_cat(struct context *context, 73 struct netlbl_lsm_secattr *secattr) 74{ 75 return -ENOMEM; 76} 77static inline int mls_import_netlbl_cat(struct context *context, 78 struct netlbl_lsm_secattr *secattr) 79{ 80 return -ENOMEM; 81} 82#endif 83 84#endif /* _SS_MLS_H */ 85