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@paul-moore.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 27 int mls_compute_context_len(struct context *context); 28 void mls_sid_to_context(struct context *context, char **scontext); 29 int mls_context_isvalid(struct policydb *p, struct context *c); 30 int mls_range_isvalid(struct policydb *p, struct mls_range *r); 31 int mls_level_isvalid(struct policydb *p, struct mls_level *l); 32 33 int mls_context_to_sid(struct policydb *p, 34 char oldc, 35 char **scontext, 36 struct context *context, 37 struct sidtab *s, 38 u32 def_sid); 39 40 int mls_from_string(char *str, struct context *context, gfp_t gfp_mask); 41 42 int mls_range_set(struct context *context, struct mls_range *range); 43 44 int mls_convert_context(struct policydb *oldp, 45 struct policydb *newp, 46 struct context *context); 47 48 int mls_compute_sid(struct context *scontext, 49 struct context *tcontext, 50 u16 tclass, 51 u32 specified, 52 struct context *newcontext, 53 bool sock); 54 55 int mls_setup_user_range(struct context *fromcon, struct user_datum *user, 56 struct context *usercon); 57 58 #ifdef CONFIG_NETLABEL 59 void mls_export_netlbl_lvl(struct context *context, 60 struct netlbl_lsm_secattr *secattr); 61 void mls_import_netlbl_lvl(struct context *context, 62 struct netlbl_lsm_secattr *secattr); 63 int mls_export_netlbl_cat(struct context *context, 64 struct netlbl_lsm_secattr *secattr); 65 int mls_import_netlbl_cat(struct context *context, 66 struct netlbl_lsm_secattr *secattr); 67 #else 68 static inline void mls_export_netlbl_lvl(struct context *context, 69 struct netlbl_lsm_secattr *secattr) 70 { 71 return; 72 } 73 static inline void mls_import_netlbl_lvl(struct context *context, 74 struct netlbl_lsm_secattr *secattr) 75 { 76 return; 77 } 78 static inline int mls_export_netlbl_cat(struct context *context, 79 struct netlbl_lsm_secattr *secattr) 80 { 81 return -ENOMEM; 82 } 83 static inline int mls_import_netlbl_cat(struct context *context, 84 struct netlbl_lsm_secattr *secattr) 85 { 86 return -ENOMEM; 87 } 88 #endif 89 90 #endif /* _SS_MLS_H */ 91 92