bsd/sys/codesign.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _SYS_CODESIGN_H_
  30 #define _SYS_CODESIGN_H_
  31
  32 #if KERNEL
  33 #include <kern/cs_blobs.h>
  34 #else
  35 #include <System/kern/cs_blobs.h>
  36 #endif
  37
  38 /* MAC flags used by F_ADDFILESIGS_* */
  39 #define MAC_VNODE_CHECK_DYLD_SIM 0x1   /* tells the MAC framework that dyld-sim is being loaded */
  40
  41 #define CLEAR_LV_ENTITLEMENT "com.apple.private.security.clear-library-validation"
  42 #define OVERRIDE_PLUGIN_HOST_ENTITLEMENT "com.apple.private.security.override-plugin-host-detection"
  43
  44 /* csops  operations */
  45 #define CS_OPS_STATUS           0       /* return status */
  46 #define CS_OPS_MARKINVALID      1       /* invalidate process */
  47 #define CS_OPS_MARKHARD         2       /* set HARD flag */
  48 #define CS_OPS_MARKKILL         3       /* set KILL flag (sticky) */
  49 #ifdef KERNEL_PRIVATE
  50 /* CS_OPS_PIDPATH               4       */
  51 #endif
  52 #define CS_OPS_CDHASH           5       /* get code directory hash */
  53 #define CS_OPS_PIDOFFSET        6       /* get offset of active Mach-o slice */
  54 #define CS_OPS_ENTITLEMENTS_BLOB 7      /* get entitlements blob */
  55 #define CS_OPS_MARKRESTRICT     8       /* set RESTRICT flag (sticky) */
  56 #define CS_OPS_SET_STATUS       9       /* set codesign flags */
  57 #define CS_OPS_BLOB             10      /* get codesign blob */
  58 #define CS_OPS_IDENTITY         11      /* get codesign identity */
  59 #define CS_OPS_CLEARINSTALLER   12      /* clear INSTALLER flag */
  60 #define CS_OPS_CLEARPLATFORM 13 /* clear platform binary status (DEVELOPMENT-only) */
  61 #define CS_OPS_TEAMID       14  /* get team id */
  62 #define CS_OPS_CLEAR_LV     15  /* clear the library validation flag */
  63
  64 #define CS_MAX_TEAMID_LEN       64
  65
  66 #ifndef KERNEL
  67
  68 #include <sys/types.h>
  69 #include <mach/message.h>
  70
  71 __BEGIN_DECLS
  72 /* code sign operations */
  73 int csops(pid_t pid, unsigned int  ops, void * useraddr, size_t usersize);
  74 int csops_audittoken(pid_t pid, unsigned int  ops, void * useraddr, size_t usersize, audit_token_t * token);
  75 __END_DECLS
  76
  77 #else /* !KERNEL */
  78
  79 #include <mach/machine.h>
  80 #include <mach/vm_types.h>
  81
  82 #include <sys/cdefs.h>
  83 #include <sys/_types/_off_t.h>
  84
  85 struct vnode;
  86 struct cs_blob;
  87 struct fileglob;
  88
  89 __BEGIN_DECLS
  90 int     cs_valid(struct proc *);
  91 int     cs_process_enforcement(struct proc *);
  92 int cs_process_global_enforcement(void);
  93 int cs_system_enforcement(void);
  94 int cs_vm_supports_4k_translations(void);
  95 int     cs_require_lv(struct proc *);
  96 int csproc_forced_lv(struct proc* p);
  97 int     cs_system_require_lv(void);
  98 uint32_t cs_entitlement_flags(struct proc *p);
  99 int     cs_entitlements_blob_get_vnode(struct vnode *, off_t, void **, size_t *);
 100 int     cs_entitlements_blob_get(struct proc *, void **, size_t *);
 101 #ifdef KERNEL_PRIVATE
 102 int     cs_entitlements_dictionary_copy(struct proc *, void **);
 103 #endif
 104 int     cs_restricted(struct proc *);
 105 uint8_t * cs_get_cdhash(struct proc *);
 106
 107 struct cs_blob * csproc_get_blob(struct proc *);
 108 struct cs_blob * csvnode_get_blob(struct vnode *, off_t);
 109 void             csvnode_print_debug(struct vnode *);
 110
 111 off_t                   csblob_get_base_offset(struct cs_blob *);
 112 vm_size_t               csblob_get_size(struct cs_blob *);
 113 vm_address_t    csblob_get_addr(struct cs_blob *);
 114 const char *    csblob_get_teamid(struct cs_blob *);
 115 const char *    csblob_get_identity(struct cs_blob *);
 116 const uint8_t * csblob_get_cdhash(struct cs_blob *);
 117 int                             csblob_get_platform_binary(struct cs_blob *);
 118 unsigned int    csblob_get_flags(struct cs_blob *);
 119 uint8_t                 csblob_get_hashtype(struct cs_blob const *);
 120 unsigned int    csblob_get_signer_type(struct cs_blob *);
 121 #if DEVELOPMENT || DEBUG
 122 void                    csproc_clear_platform_binary(struct proc *);
 123 #endif
 124
 125 void csproc_disable_enforcement(struct proc* p);
 126 void csproc_mark_invalid_allowed(struct proc* p);
 127 int csproc_check_invalid_allowed(struct proc* p);
 128 int csproc_hardened_runtime(struct proc* p);
 129
 130 int             csblob_get_entitlements(struct cs_blob *, void **, size_t *);
 131
 132 const CS_GenericBlob *
 133     csblob_find_blob(struct cs_blob *, uint32_t, uint32_t);
 134 const CS_GenericBlob *
 135     csblob_find_blob_bytes(const uint8_t *, size_t, uint32_t, uint32_t);
 136 void *          csblob_entitlements_dictionary_copy(struct cs_blob *csblob);
 137 void            csblob_entitlements_dictionary_set(struct cs_blob *csblob, void * entitlements);
 138
 139 /*
 140  * Mostly convenience functions below
 141  */
 142
 143 const   char * csproc_get_teamid(struct proc *);
 144 const   char * csproc_get_identity(struct proc *);
 145 const   char * csvnode_get_teamid(struct vnode *, off_t);
 146 int     csproc_get_platform_binary(struct proc *);
 147 int csproc_get_prod_signed(struct proc *);
 148 const   char * csfg_get_teamid(struct fileglob *);
 149 const   char * csfg_get_supplement_teamid(struct fileglob *);
 150 int     csfg_get_path(struct fileglob *, char *, int *);
 151 int     csfg_get_platform_binary(struct fileglob *);
 152 int     csfg_get_supplement_platform_binary(struct fileglob *);
 153 uint8_t * csfg_get_cdhash(struct fileglob *, uint64_t, size_t *);
 154 uint8_t * csfg_get_supplement_cdhash(struct fileglob *, uint64_t, size_t *);
 155 const uint8_t * csfg_get_supplement_linkage_cdhash(struct fileglob *, uint64_t, size_t *);
 156 int csfg_get_prod_signed(struct fileglob *);
 157 int csfg_get_supplement_prod_signed(struct fileglob *fg);
 158 unsigned int csfg_get_signer_type(struct fileglob *);
 159 unsigned int csfg_get_supplement_signer_type(struct fileglob *);
 160 const char *csfg_get_identity(struct fileglob *fg, off_t offset);
 161 unsigned int csproc_get_signer_type(struct proc *);
 162
 163 uint8_t csfg_get_platform_identifier(struct fileglob *, off_t);
 164 uint8_t csvnode_get_platform_identifier(struct vnode *, off_t);
 165 uint8_t csproc_get_platform_identifier(struct proc *);
 166
 167 extern int cs_debug;
 168 extern int cs_debug_fail_on_unsigned_code;
 169 extern unsigned int cs_debug_unsigned_exec_failures;
 170 extern unsigned int cs_debug_unsigned_mmap_failures;
 171
 172 int cs_blob_create_validated(vm_address_t* addr, vm_size_t size,
 173     struct cs_blob ** ret_blob, CS_CodeDirectory const **ret_cd);
 174
 175 void cs_blob_free(struct cs_blob *blob);
 176
 177 #ifdef XNU_KERNEL_PRIVATE
 178
 179 int     cs_allow_invalid(struct proc *);
 180 int     cs_invalid_page(addr64_t vaddr, boolean_t *cs_killed);
 181 void    cs_process_invalidated(struct proc *);
 182 int     csproc_get_platform_path(struct proc *);
 183
 184 #if !SECURE_KERNEL
 185 extern int cs_enforcement_panic;
 186 #endif
 187
 188 #endif /* XNU_KERNEL_PRIVATE */
 189
 190
 191 __END_DECLS
 192
 193
 194
 195 #endif /* KERNEL */
 196
 197 #endif /* _SYS_CODESIGN_H_ */