Changeset 111

Timestamp:

05/01/08 00:06:22 (16 years ago)

Author:

tim

Message:

Switched license to GPLv3

Added early version of new tool, reglookup-recover

Many library changes made to support this new tool

Location:

trunk

Files:

• LICENSE (modified) (3 diffs)
• Makefile (modified) (1 diff)
• include/byteorder.h (modified) (1 diff)
• include/regfi.h (modified) (3 diffs)
• include/smb_deps.h (modified) (1 diff)
• include/void_stack.h (modified) (1 diff)
• lib/lru_cache.c (modified) (2 diffs)
• lib/range_list.c (modified) (2 diffs)
• lib/regfi.c (modified) (12 diffs)
• lib/smb_deps.c (modified) (1 diff)
• lib/void_stack.c (modified) (1 diff)
• src/common.c (added)
• src/reglookup-recover.c (added)
• src/reglookup.c (modified) (5 diffs)

trunk/LICENSE

@@ +1 @@
+
                     GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
-                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
@@ -9 +9 @@
                             Preamble
 
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 your programs, too.
 
@@ -22 +24 @@
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+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
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+transaction who receives a copy of the work also receives whatever
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+
+  You may not impose any further restrictions on the exercise of the
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+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
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+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
 this License.
 
-  7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
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+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
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+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+  
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot
-distribute so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
-may not distribute the Program at all.  For example, if a patent
-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
-
-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
-apply and the section as a whole is intended to apply in other
-circumstances.
-
-It is not the purpose of this section to induce you to infringe any
-patents or other property right claims or to contest validity of any
-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices.  Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
-
-  8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded.  In such case, this License incorporates
-the limitation as if written in the body of this License.
-
-  9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time.  Such new versions will
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
 be similar in spirit to the present version, but may differ in detail to
 address new problems or concerns.
 
-Each version is given a distinguishing version number.  If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation.  If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
-  10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission.  For software which is copyrighted by the Free
-Software Foundation, write to the Free Software Foundation; we sometimes
-make exceptions for this.  Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
-
-                            NO WARRANTY
-
-  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
-
-  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
 
                      END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+

trunk/Makefile

@@ -11 +11 @@
 
 CC=gcc
-OPTS=-std=gnu89 -pedantic -Wall
+OPTS=-std=gnu89 -pedantic -Wall -ggdb
 INC=-I/usr/local/include
 LIB=-L/usr/local/lib -lm

trunk/include/byteorder.h

@@ -11 +11 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; version 3 of the License.
  * 
  * This program is distributed in the hope that it will be useful,

trunk/include/regfi.h

@@ -171 +171 @@
   uint16 flag;
   uint16 unknown1;
+  bool data_in_offset;
 } REGF_VK_REC;
 
@@ -179 +180 @@
 typedef struct _regf_sk_rec 
 {
-  REGF_HBIN* hbin;      /* pointer to HBIN record (in memory) containing 
-                         * this nk record 
-                         */
+  uint32 offset;        /* Real file offset of this record */
+  uint32 cell_size;     /* ((start_offset - end_offset) & 0xfffffff8) */
+
   SEC_DESC* sec_desc;
   uint32 hbin_off;      /* offset from beginning of this hbin block */
-  uint32 cell_size;     /* ((start_offset - end_offset) & 0xfffffff8) */
-  uint32 offset;        /* Real file offset of this record */
   
   uint32 sk_off;        /* offset parsed from NK record used as a key
@@ -389 +388 @@
                         uint32 length, bool strict);
 
+REGF_SK_REC* regfi_parse_sk(REGF_FILE* file, uint32 offset, uint32 max_size, bool strict);
+
 range_list* regfi_parse_unalloc_cells(REGF_FILE* file);
 
+REGF_HBIN* regfi_lookup_hbin(REGF_FILE* file, uint32 offset);
+
+bool regfi_parse_cell(int fd, uint32 offset, uint8* hdr, uint32 hdr_len,
+                      uint32* cell_length, bool* unalloc);
+
 #endif  /* _REGFI_H */

trunk/include/smb_deps.h

@@ -10 +10 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; version 3 of the License.
  * 
  * This program is distributed in the hope that it will be useful,

trunk/include/void_stack.h

@@ -4 +4 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; version 3 of the License.
  * 
  * This program is distributed in the hope that it will be useful,

trunk/lib/lru_cache.c

@@ -101 +101 @@
   lru_cache* ret_val;
 
-  if(max_keys < 2)
-    return NULL;
-
   ret_val = (lru_cache*)malloc(sizeof(lru_cache));
   if(ret_val == NULL)
     return NULL;
 
-  ret_val->num_buckets = max_keys/lru_cache_floor_log2(max_keys);
-  if(ret_val->num_buckets < 1)
-    ret_val->num_buckets = 1;
-  
+  if(max_keys == 0)
+    ret_val->num_buckets = 2048;
+  else
+  {
+    ret_val->num_buckets = max_keys/lru_cache_floor_log2(max_keys);
+    if(ret_val->num_buckets < 1)
+      ret_val->num_buckets = 1;
+  }
+
   ret_val->table 
     = (lru_cache_element**)malloc(sizeof(lru_cache_element*) 
@@ -193 +195 @@
   { /* We didn't find an identical index. */
     
-    if(ht->num_keys >= ht->max_keys)
+    if((ht->max_keys != 0) && (ht->num_keys >= ht->max_keys))
     { /* Eliminate the least recently used item, but reuse the element
        * structure to minimize reallocation. 

trunk/lib/range_list.c

@@ -28 +28 @@
 #define RANGE_LIST_ALLOC_SIZE 256
 
-
+#if 0
 static void range_list_print(const range_list* rl)
 {
@@ -38 +38 @@
   fprintf(stderr, "\n");
 }
-
+#endif
 
 /*

trunk/lib/regfi.c

@@ -11 +11 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; version 3 of the License.
  *
  * This program is distributed in the hope that it will be useful,
@@ -372 +372 @@
  *
  *****************************************************************************/
-static bool regfi_parse_cell(int fd, uint32 offset, uint8* hdr, uint32 hdr_len,
-                             uint32* cell_length, bool* unalloc)
+bool regfi_parse_cell(int fd, uint32 offset, uint8* hdr, uint32 hdr_len,
+                      uint32* cell_length, bool* unalloc)
 {
   uint32 length;
@@ -434 +434 @@
  * block for it.  NULL if one doesn't exist.
  *******************************************************************/
-static REGF_HBIN* regfi_lookup_hbin(REGF_FILE* file, uint32 offset)
+REGF_HBIN* regfi_lookup_hbin(REGF_FILE* file, uint32 offset)
 {
   return (REGF_HBIN*)range_list_find_data(file->hbins, offset+REGF_BLOCKSIZE);
@@ -565 +565 @@
 
   ret_val->offset = offset;
+  /* TODO: is there a way to be more conservative (shorter) with 
+   *       cell length when cell is unallocated?
+   */
   ret_val->cell_size = cell_length;
 
@@ -576 +579 @@
   }
 
-
   ret_val->magic[0] = sk_header[0];
   ret_val->magic[1] = sk_header[1];
 
+  /* TODO: can additional validation be added here? */
   ret_val->unknown_tag = SVAL(sk_header, 0x2);
   ret_val->prev_sk_off = IVAL(sk_header, 0x4);
@@ -621 +624 @@
 
 
-
-/******************************************************************************
- TODO: not currently validating against max_size.
+uint32* regfi_parse_valuelist(REGF_FILE* file, uint32 offset, 
+                              uint32 num_values, bool strict)
+{
+  uint32* ret_val;
+  uint32 i, cell_length, length, read_len;
+  bool unalloc;
+
+  if(!regfi_parse_cell(file->fd, offset, NULL, 0, &cell_length, &unalloc))
+    return NULL;
+
+  if(cell_length != (cell_length & 0xFFFFFFF8))
+  {
+    if(strict)
+      return NULL;
+    cell_length = cell_length & 0xFFFFFFF8;
+  }
+  if((num_values * sizeof(uint32)) > cell_length-sizeof(uint32))
+    return NULL;
+
+  read_len = num_values*sizeof(uint32);
+  ret_val = (uint32*)malloc(read_len);
+  if(ret_val == NULL)
+    return NULL;
+
+  length = read_len;
+  if((regfi_read(file->fd, (uint8*)ret_val, &length) != 0) || length != read_len)
+  {
+    free(ret_val);
+    return NULL;
+  }
+  
+  for(i=0; i < num_values; i++)
+  {
+    /* Fix endianness */
+    ret_val[i] = IVAL(&ret_val[i], 0);
+
+    /* Validate the first num_values values to ensure they make sense */
+    if(strict)
+    {
+      if((ret_val[i] + REGF_BLOCKSIZE > file->file_length)
+         || ((ret_val[i] & 0xFFFFFFF8) != ret_val[i]))
+      {
+        free(ret_val);
+        return NULL;
+      }
+    }
+  }
+
+  return ret_val;
+}
+
+
+
+/******************************************************************************
+ * If !strict, the list may contain NULLs and VK records may point to NULL data.
  ******************************************************************************/
 REGF_VK_REC** regfi_load_valuelist(REGF_FILE* file, uint32 offset, 
@@ -630 +685 @@
 {
   REGF_VK_REC** ret_val;
-  REGF_HBIN* sub_hbin;
-  uint8* buf;
-  uint32 i, cell_length, vk_raw_offset, vk_offset, vk_max_length, buf_len;
-  bool unalloc;
-
-  buf_len = sizeof(uint8) * 4 * num_values;
-  buf = (uint8*)zalloc(buf_len);
-  if(buf == NULL)
-    return NULL; 
-
-  if(!regfi_parse_cell(file->fd, offset, buf, buf_len, &cell_length, &unalloc))
-  {
-    free(buf);
-    return NULL;
-  }
+  REGF_HBIN* hbin;
+  uint32 i, vk_offset, vk_max_length;
+  uint32* voffsets;
+
+  if((num_values+1) * sizeof(uint32) > max_size)
+    return NULL;
+
+  /* TODO: For now, everything strict seems to make sense on this call.
+   *       Maybe remove the parameter or use it for other things.
+   */
+  voffsets = regfi_parse_valuelist(file, offset, num_values, true);
+  if(voffsets == NULL)
+    return NULL;
 
   ret_val = (REGF_VK_REC**)zalloc(sizeof(REGF_VK_REC*) * num_values);
   if(ret_val == NULL)
   {
-    free(buf);
-    return NULL;
-  }
-  
-  for (i=0; i < num_values; i++) 
-  {
-    vk_raw_offset = IVAL(buf, i*4);
-    
-    sub_hbin = regfi_lookup_hbin(file, vk_raw_offset);
-    if (!sub_hbin)
-    {
-      free(buf);
+    free(voffsets);
+    return NULL;
+  }
+  
+  for(i=0; i < num_values; i++)
+  {
+    hbin = regfi_lookup_hbin(file, voffsets[i]);
+    if(!hbin)
+    {
+      free(voffsets);
       free(ret_val);
       return NULL;
     }
     
-    vk_offset =  vk_raw_offset + REGF_BLOCKSIZE;
-    vk_max_length = sub_hbin->block_size - vk_offset + sizeof(uint32);
-    ret_val[i] = regfi_parse_vk(file, vk_offset, vk_max_length, true);
+    vk_offset =  voffsets[i] + REGF_BLOCKSIZE;
+    vk_max_length = hbin->block_size - vk_offset + sizeof(uint32);
+    ret_val[i] = regfi_parse_vk(file, vk_offset, vk_max_length, strict);
     if(ret_val[i] == NULL)
-    {
-      free(buf);
-      free(ret_val);
-      return NULL;     
-    }
-  }
-
-  free(buf);
+    { /* If we're being strict, throw out the whole list.
+       * Otherwise, let it be NULL.
+       */
+      if(strict)
+      {
+        free(voffsets);
+        free(ret_val);
+        return NULL;
+      }
+    }
+  }
+
+  free(voffsets);
   return ret_val;
 }
@@ -1460 +1516 @@
   {
     /* TODO: deal with subkey-lists that reference other subkey-lists. */
-printf("DEBUG: magic check failed! \"%c%c\"\n", nk_header[0x0], nk_header[0x1]);
     return NULL;
   }
@@ -1574 +1629 @@
                        &cell_length, &unalloc))
     return NULL;
-   
+
   ret_val = (REGF_VK_REC*)zalloc(sizeof(REGF_VK_REC));
   if(ret_val == NULL)
@@ -1585 +1640 @@
     ret_val->cell_size = max_size & 0xFFFFFFF8;
   if((ret_val->cell_size < REGFI_VK_MIN_LENGTH) 
-     || (strict && ret_val->cell_size != (ret_val->cell_size & 0xFFFFFFF8)))
+     || ret_val->cell_size != (ret_val->cell_size & 0xFFFFFFF8))
   {
     free(ret_val);
@@ -1602 +1657 @@
   raw_data_size = IVAL(vk_header, 0x4);
   ret_val->data_size = raw_data_size & ~VK_DATA_IN_OFFSET;
+  ret_val->data_in_offset = (bool)(raw_data_size & VK_DATA_IN_OFFSET);
   ret_val->data_off = IVAL(vk_header, 0x8);
   ret_val->type = IVAL(vk_header, 0xC);
@@ -1697 +1753 @@
                          &cell_length, &unalloc))
       return NULL;
-    
-    if(cell_length < 8 || ((cell_length & 0xFFFFFFF8) != cell_length))
+
+    if((cell_length & 0xFFFFFFF8) != cell_length)
       return NULL;
 
     if(cell_length - 4 < length)
     {
+      /* TODO: This strict condition has been triggered in multiple registries.
+       *       Not sure the cause, but the data length values are very large,
+       *       such as 53392.
+       */
       if(strict)
         return NULL;

trunk/lib/smb_deps.c

@@ -10 +10 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; version 3 of the License.
  * 
  * This program is distributed in the hope that it will be useful,

trunk/lib/void_stack.c

@@ -8 +8 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; version 3 of the License.
  * 
  * This program is distributed in the hope that it will be useful,

trunk/src/reglookup.c

@@ -3 +3 @@
  * Gerald Carter''s regfio interface.
  *
- * Copyright (C) 2005-2007 Timothy D. Morgan
+ * Copyright (C) 2005-2008 Timothy D. Morgan
  * Copyright (C) 2002 Richard Sharpe, rsharpe@richardsharpe.com
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; version 3 of the License.
  * 
  * This program is distributed in the hope that it will be useful,
@@ -29 +29 @@
 #include <strings.h>
 #include <time.h>
-#include <iconv.h>
 #include "../include/regfi.h"
 #include "../include/void_stack.h"
@@ -45 +44 @@
 /* Other globals */
 REGF_FILE* f;
-const char* key_special_chars = ",\"\\/";
-const char* subfield_special_chars = ",\"\\|";
-const char* common_special_chars = ",\"\\";
-
-iconv_t conv_desc;
-
-
-void bailOut(int code, char* message)
-{
-  fprintf(stderr, message);
-  exit(code);
-}
-
-
-/* Returns a newly malloc()ed string which contains original buffer,
- * except for non-printable or special characters are quoted in hex
- * with the syntax '\xQQ' where QQ is the hex ascii value of the quoted
- * character.  A null terminator is added, since only ascii, not binary,
- * is returned.
+
+
+/* TODO: a hack to share some functions with reglookup-recover.c.
+ *       Should move these into a properly library at some point.
  */
-static char* quote_buffer(const unsigned char* str, 
-                          unsigned int len, const char* special)
-{
-  unsigned int i, added_len;
-  unsigned int num_written = 0;
-
-  unsigned int buf_len = sizeof(char)*(len+1);
-  char* ret_val = malloc(buf_len);
-  char* tmp_buf;
-
-  if(ret_val == NULL)
-    return NULL;
-
-  for(i=0; i<len; i++)
-  {
-    if(buf_len <= (num_written+5))
-    {
-      /* Expand the buffer by the memory consumption rate seen so far 
-       * times the amount of input left to process.  The expansion is bounded 
-       * below by a minimum safety increase, and above by the maximum possible 
-       * output string length.  This should minimize both the number of 
-       * reallocs() and the amount of wasted memory.
-       */
-      added_len = (len-i)*num_written/(i+1);
-      if((buf_len+added_len) > (len*4+1))
-        buf_len = len*4+1;
-      else
-      {
-        if (added_len < 5)
-          buf_len += 5;
-        else
-          buf_len += added_len;
-      }
-
-      tmp_buf = realloc(ret_val, buf_len);
-      if(tmp_buf == NULL)
-      {
-        free(ret_val);
-        return NULL;
-      }
-      ret_val = tmp_buf;
-    }
-    
-    if(str[i] < 32 || str[i] > 126 || strchr(special, str[i]) != NULL)
-    {
-      num_written += snprintf(ret_val + num_written, buf_len - num_written,
-                              "\\x%.2X", str[i]);
-    }
+#include "common.c"
+
+
+void printValue(const REGF_VK_REC* vk, char* prefix)
+{
+  char* quoted_value = NULL;
+  char* quoted_name = NULL;
+  char* conv_error = NULL;
+  const char* str_type = NULL;
+  uint32 size = vk->data_size;
+
+  /* Microsoft's documentation indicates that "available memory" is 
+   * the limit on value sizes.  Annoying.  We limit it to 1M which 
+   * should rarely be exceeded, unless the file is corrupt or 
+   * malicious. For more info, see:
+   *   http://msdn2.microsoft.com/en-us/library/ms724872.aspx
+   */
+  if(size > VK_MAX_DATA_LENGTH)
+  {
+    fprintf(stderr, "WARNING: value data size %d larger than "
+            "%d, truncating...\n", size, VK_MAX_DATA_LENGTH);
+    size = VK_MAX_DATA_LENGTH;
+  }
+  
+  quoted_name = quote_string(vk->valuename, key_special_chars);
+  if (quoted_name == NULL)
+  { /* Value names are NULL when we're looking at the "(default)" value.
+     * Currently we just return a 0-length string to try an eliminate 
+     * ambiguity with a literal "(default)" value.  The data type of a line
+     * in the output allows one to differentiate between the parent key and
+     * this value.
+     */
+    quoted_name = malloc(1*sizeof(char));
+    if(quoted_name == NULL)
+      bailOut(EX_OSERR, "ERROR: Could not allocate sufficient memory.\n");
+    quoted_name[0] = '\0';
+  }
+
+  quoted_value = data_to_ascii(vk->data, size, vk->type, &conv_error);
+  if(quoted_value == NULL)
+  {
+    if(conv_error == NULL)
+      fprintf(stderr, "WARNING: Could not quote value for '%s/%s'.  "
+              "Memory allocation failure likely.\n", prefix, quoted_name);
+    else if(print_verbose)
+      fprintf(stderr, "WARNING: Could not quote value for '%s/%s'.  "
+              "Returned error: %s\n", prefix, quoted_name, conv_error);
+  }
+  /* XXX: should these always be printed? */
+  else if(conv_error != NULL && print_verbose)
+    fprintf(stderr, "VERBOSE: While quoting value for '%s/%s', "
+            "warning returned: %s\n", prefix, quoted_name, conv_error);
+
+  str_type = regfi_type_val2str(vk->type);
+  if(print_security)
+  {
+    if(str_type == NULL)
+      printf("%s/%s,0x%.8X,%s,,,,,\n", prefix, quoted_name,
+             vk->type, quoted_value);
     else
-      ret_val[num_written++] = str[i];
-  }
-  ret_val[num_written] = '\0';
-
-  return ret_val;
-}
-
-
-/* Returns a newly malloc()ed string which contains original string, 
- * except for non-printable or special characters are quoted in hex
- * with the syntax '\xQQ' where QQ is the hex ascii value of the quoted
- * character.
- */
-static char* quote_string(const char* str, const char* special)
-{
-  unsigned int len;
-
-  if(str == NULL)
-    return NULL;
-
-  len = strlen(str);
-  return quote_buffer((const unsigned char*)str, len, special);
-}
-
-
-/*
- * Convert from UTF-16LE to ASCII.  Accepts a Unicode buffer, uni, and
- * it's length, uni_max.  Writes ASCII to the buffer ascii, whose size
- * is ascii_max.  Writes at most (ascii_max-1) bytes to ascii, and null
- * terminates the string.  Returns the length of the string stored in
- * ascii.  On error, returns a negative errno code.
- */
-static int uni_to_ascii(unsigned char* uni, char* ascii, 
-                        unsigned int uni_max, unsigned int ascii_max)
-{
-  char* inbuf = (char*)uni;
-  char* outbuf = ascii;
-  size_t in_len = (size_t)uni_max;
-  size_t out_len = (size_t)(ascii_max-1);
-  int ret;
-
-  /* Set up conversion descriptor. */
-  conv_desc = iconv_open("US-ASCII", "UTF-16LE");
-
-  ret = iconv(conv_desc, &inbuf, &in_len, &outbuf, &out_len);
-  if(ret == -1)
-  {
-    iconv_close(conv_desc);
-    return -errno;
-  }
-  *outbuf = '\0';
-
-  iconv_close(conv_desc);  
-  return strlen(ascii);
-}
-
-
-/*
- * Convert a data value to a string for display.  Returns NULL on error,
- * and the string to display if there is no error, or a non-fatal
- * error.  On any error (fatal or non-fatal) occurs, (*error_msg) will
- * be set to a newly allocated string, containing an error message.  If
- * a memory allocation failure occurs while generating the error
- * message, both the return value and (*error_msg) will be NULL.  It
- * is the responsibility of the caller to free both a non-NULL return
- * value, and a non-NULL (*error_msg).
- */
-static char* data_to_ascii(unsigned char *datap, uint32 len, uint32 type, 
-                           char** error_msg)
-{
-  char* asciip;
-  char* ascii;
-  unsigned char* cur_str;
-  char* cur_ascii;
-  char* cur_quoted;
-  char* tmp_err;
-  const char* str_type;
-  uint32 i;
-  uint32 cur_str_len;
-  uint32 ascii_max, cur_str_max;
-  uint32 str_rem, cur_str_rem, alen;
-  int ret_err;
-  unsigned short num_nulls;
-
-  *error_msg = NULL;
-
-  switch (type) 
-  {
-  case REG_SZ:
-  case REG_EXPAND_SZ:
-    /* REG_LINK is a symbolic link, stored as a unicode string. */
-  case REG_LINK:
-    ascii_max = sizeof(char)*(len+1);
-    ascii = malloc(ascii_max);
-    if(ascii == NULL)
-      return NULL;
-    
-    /* Sometimes values have binary stored in them.  If the unicode
-     * conversion fails, just quote it raw.
-     */
-    ret_err = uni_to_ascii(datap, ascii, len, ascii_max);
-    if(ret_err < 0)
-    {
-      tmp_err = strerror(-ret_err);
-      str_type = regfi_type_val2str(type);
-      *error_msg = (char*)malloc(65+strlen(str_type)+strlen(tmp_err)+1);
-      if(*error_msg == NULL)
-      {
-        free(ascii);
-        return NULL;
-      }
-      sprintf(*error_msg, "Unicode conversion failed on %s field; "
-               "printing as binary.  Error: %s", str_type, tmp_err);
-      
-      cur_quoted = quote_buffer(datap, len, common_special_chars);
-    }
+      printf("%s/%s,%s,%s,,,,,\n", prefix, quoted_name,
+             str_type, quoted_value);
+  }
+  else
+  {
+    if(str_type == NULL)
+      printf("%s/%s,0x%.8X,%s,\n", prefix, quoted_name,
+             vk->type, quoted_value);
     else
-      cur_quoted = quote_string(ascii, common_special_chars);
-    free(ascii);
-    if(cur_quoted == NULL)
-    {
-      *error_msg = (char*)malloc(27+1);
-      if(*error_msg != NULL)
-        strcpy(*error_msg, "Buffer could not be quoted.");
-    }
-    return cur_quoted;
-    break;
-
-  case REG_DWORD:
-    ascii_max = sizeof(char)*(8+2+1);
-    ascii = malloc(ascii_max);
-    if(ascii == NULL)
-      return NULL;
-
-    snprintf(ascii, ascii_max, "0x%.2X%.2X%.2X%.2X", 
-             datap[3], datap[2], datap[1], datap[0]);
-    return ascii;
-    break;
-
-  case REG_DWORD_BE:
-    ascii_max = sizeof(char)*(8+2+1);
-    ascii = malloc(ascii_max);
-    if(ascii == NULL)
-      return NULL;
-
-    snprintf(ascii, ascii_max, "0x%.2X%.2X%.2X%.2X", 
-             datap[0], datap[1], datap[2], datap[3]);
-    return ascii;
-    break;
-
-  case REG_QWORD:
-    ascii_max = sizeof(char)*(16+2+1);
-    ascii = malloc(ascii_max);
-    if(ascii == NULL)
-      return NULL;
-
-    snprintf(ascii, ascii_max, "0x%.2X%.2X%.2X%.2X%.2X%.2X%.2X%.2X",
-             datap[7], datap[6], datap[5], datap[4],
-             datap[3], datap[2], datap[1], datap[0]);
-    return ascii;
-    break;
-    
-
-  /* XXX: this MULTI_SZ parser is pretty inefficient.  Should be
-   *      redone with fewer malloc calls and better string concatenation.
-   *      Also, gives lame output when "\0\0" is the string.
-   */
-  case REG_MULTI_SZ:
-    ascii_max = sizeof(char)*(len*4+1);
-    cur_str_max = sizeof(char)*(len+1);
-    cur_str = malloc(cur_str_max);
-    cur_ascii = malloc(cur_str_max);
-    ascii = malloc(ascii_max);
-    if(ascii == NULL || cur_str == NULL || cur_ascii == NULL)
-      return NULL;
-
-    /* Reads until it reaches 4 consecutive NULLs, 
-     * which is two nulls in unicode, or until it reaches len, or until we
-     * run out of buffer.  The latter should never happen, but we shouldn't
-     * trust our file to have the right lengths/delimiters.
-     */
-    asciip = ascii;
-    num_nulls = 0;
-    str_rem = ascii_max;
-    cur_str_rem = cur_str_max;
-    cur_str_len = 0;
-
-    for(i=0; (i < len) && str_rem > 0; i++)
-    {
-      *(cur_str+cur_str_len) = *(datap+i);
-      if(*(cur_str+cur_str_len) == 0)
-        num_nulls++;
-      else
-        num_nulls = 0;
-      cur_str_len++;
-
-      if(num_nulls == 2)
-      {
-        ret_err = uni_to_ascii(cur_str, cur_ascii, cur_str_len-1, cur_str_max);
-        if(ret_err < 0)
-        {
-          /* XXX: should every sub-field error be enumerated? */
-          if(*error_msg == NULL)
-          {
-            tmp_err = strerror(-ret_err);
-            *error_msg = (char*)malloc(90+strlen(tmp_err)+1);
-            if(*error_msg == NULL)
-            {
-              free(cur_str);
-              free(cur_ascii);
-              free(ascii);
-              return NULL;
-            }
-            sprintf(*error_msg, "Unicode conversion failed on at least one "
-                    "MULTI_SZ sub-field; printing as binary.  Error: %s",
-                    tmp_err);
-          }
-          cur_quoted = quote_buffer(cur_str, cur_str_len-1, 
-                                    subfield_special_chars);
-        }
-        else
-          cur_quoted = quote_string(cur_ascii, subfield_special_chars);
-
-        alen = snprintf(asciip, str_rem, "%s", cur_quoted);
-        asciip += alen;
-        str_rem -= alen;
-        free(cur_quoted);
-
-        if(*(datap+i+1) == 0 && *(datap+i+2) == 0)
-          break;
-        else
-        {
-          if(str_rem > 0)
-          {
-            asciip[0] = '|';
-            asciip[1] = '\0';
-            asciip++;
-            str_rem--;
-          }
-          memset(cur_str, 0, cur_str_max);
-          cur_str_len = 0;
-          num_nulls = 0;
-          /* To eliminate leading nulls in subsequent strings. */
-          i++;
-        }
-      }
-    }
-    *asciip = 0;
-    free(cur_str);
-    free(cur_ascii);
-    return ascii;
-    break;
-
-  /* XXX: Dont know what to do with these yet, just print as binary... */
-  default:
-    fprintf(stderr, "WARNING: Unrecognized registry data type (0x%.8X); quoting as binary.\n", type);
-    
-  case REG_NONE:
-  case REG_RESOURCE_LIST:
-  case REG_FULL_RESOURCE_DESCRIPTOR:
-  case REG_RESOURCE_REQUIREMENTS_LIST:
-
-  case REG_BINARY:
-    return quote_buffer(datap, len, common_special_chars);
-    break;
-  }
-
-  return NULL;
-}
+      printf("%s/%s,%s,%s,\n", prefix, quoted_name,
+             str_type, quoted_value);
+  }
+
+  if(quoted_value != NULL)
+    free(quoted_value);
+  if(quoted_name != NULL)
+    free(quoted_name);
+  if(conv_error != NULL)
+    free(conv_error);
+}
+
 
 
@@ -527 +274 @@
 
 
-void printValue(const REGF_VK_REC* vk, char* prefix)
-{
-  char* quoted_value = NULL;
-  char* quoted_name = NULL;
-  char* conv_error = NULL;
-  const char* str_type = NULL;
-  uint32 size;
-
-  /* Microsoft's documentation indicates that "available memory" is 
-   * the limit on value sizes.  Annoying.  We limit it to 1M which 
-   * should rarely be exceeded, unless the file is corrupt or 
-   * malicious. For more info, see:
-   *   http://msdn2.microsoft.com/en-us/library/ms724872.aspx
-   */
-  if(size > VK_MAX_DATA_LENGTH)
-  {
-    fprintf(stderr, "WARNING: value data size %d larger than "
-            "%d, truncating...\n", size, VK_MAX_DATA_LENGTH);
-    size = VK_MAX_DATA_LENGTH;
-  }
-  
-  quoted_value = data_to_ascii(vk->data, vk->data_size, 
-                               vk->type, &conv_error);
-
-  
-  /* XXX: Sometimes value names can be NULL in registry.  Need to
-   *      figure out why and when, and generate the appropriate output
-   *      for that condition.
-   */
-  quoted_name = quote_string(vk->valuename, common_special_chars);
-  if (quoted_name == NULL)
-  {
-    quoted_name = malloc(1*sizeof(char));
-    if(quoted_name == NULL)
-      bailOut(EX_OSERR, "ERROR: Could not allocate sufficient memory.\n");
-    quoted_name[0] = '\0';
-  }
-
-  if(quoted_value == NULL)
-  {
-    if(conv_error == NULL)
-      fprintf(stderr, "WARNING: Could not quote value for '%s/%s'.  "
-              "Memory allocation failure likely.\n", prefix, quoted_name);
-    else
-      fprintf(stderr, "WARNING: Could not quote value for '%s/%s'.  "
-              "Returned error: %s\n", prefix, quoted_name, conv_error);
-  }
-  /* XXX: should these always be printed? */
-  else if(conv_error != NULL && print_verbose)
-      fprintf(stderr, "VERBOSE: While quoting value for '%s/%s', "
-              "warning returned: %s\n", prefix, quoted_name, conv_error);
-
-  str_type = regfi_type_val2str(vk->type);
-  if(print_security)
-  {
-    if(str_type == NULL)
-      printf("%s/%s,0x%.8X,%s,,,,,\n", prefix, quoted_name,
-             vk->type, quoted_value);
-    else
-      printf("%s/%s,%s,%s,,,,,\n", prefix, quoted_name,
-             str_type, quoted_value);
-  }
-  else
-  {
-    if(str_type == NULL)
-      printf("%s/%s,0x%.8X,%s,\n", prefix, quoted_name,
-             vk->type, quoted_value);
-    else
-      printf("%s/%s,%s,%s,\n", prefix, quoted_name,
-             str_type, quoted_value);
-  }
-
-  if(quoted_value != NULL)
-    free(quoted_value);
-  if(quoted_name != NULL)
-    free(quoted_name);
-  if(conv_error != NULL)
-    free(conv_error);
-}
-
-
 void printValueList(REGFI_ITERATOR* i, char* prefix)
 {
@@ -825 +491 @@
           " [-p <PATH_FILTER>] [-t <TYPE_FILTER>]"
           " <REGISTRY_FILE>\n");
-  fprintf(stderr, "Version: 0.4.0\n");
+  fprintf(stderr, "Version: %s\n", REGLOOKUP_VERSION);
   fprintf(stderr, "Options:\n");
   fprintf(stderr, "\t-v\t sets verbose mode.\n");