Add a small utility that can print out the SEC DESCs in NTUSER.DAT.

This is an early, messy version of the code, but it illustrates what can
be done. It currently only prints the Owner SID, Group SID, and Perms and
SID from each ACE.

Once more work is done, it could actually walk the SEC DESCs and ACEs and
change the SIDS ...
(This used to be commit 322151509c255aa288627ae239661154ab0c83d5)

1 files changed, 250 insertions, 0 deletions

diff --git a/source3/utils/profiles.c b/source3/utils/profiles.c
new file mode 100644
index 0000000000..f14bcf8d85
--- /dev/null
+++ b/source3/utils/profiles.c
@@ -0,0 +1,250 @@
+#include "includes.h"
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+typedef unsigned int DWORD;
+typedef unsigned short WORD;
+
+#define REG_REGF_ID 0x66676572
+
+typedef struct regf_block {
+  DWORD REGF_ID;     /* regf */
+  DWORD uk1;
+  DWORD uk2;
+  DWORD tim1, tim2;
+  DWORD uk3;             /* 1 */
+  DWORD uk4;             /* 3 */
+  DWORD uk5;             /* 0 */
+  DWORD uk6;             /* 1 */
+  DWORD first_key;       /* offset */
+  unsigned int dblk_size;
+  DWORD uk7[116];        /* 1 */
+  DWORD chksum;
+} REGF_HDR;
+
+typedef struct hbin_sub_struct {
+  DWORD dblocksize;
+  char data[1];
+} HBIN_SUB_HDR;
+
+#define REG_HBIN_ID 0x6E696268
+
+typedef struct hbin_struct {
+  DWORD HBIN_ID; /* hbin */
+  DWORD next_off;
+  DWORD prev_off;
+  DWORD uk1;
+  DWORD uk2;
+  DWORD uk3;
+  DWORD uk4;
+  DWORD blk_size;
+  HBIN_SUB_HDR hbin_sub_hdr;
+} HBIN_HDR;
+
+#define REG_NK_ID 0x6B6E
+
+typedef struct nk_struct {
+  WORD NK_ID;
+  WORD type;
+  DWORD t1, t2;
+  DWORD uk1;
+  DWORD own_off;
+  DWORD subk_num;
+  DWORD uk2;
+  DWORD lf_off;
+  DWORD uk3;
+  DWORD val_cnt;
+  DWORD val_off;
+  DWORD sk_off;
+  DWORD clsnam_off;
+} NK_HDR;
+
+#define REG_SK_ID 0x6B73
+
+typedef struct sk_struct {
+  WORD SK_ID;
+  WORD uk1;
+  DWORD prev_off;
+  DWORD next_off;
+  DWORD ref_cnt;
+  DWORD rec_size;
+  char sec_desc[1];
+} SK_HDR;
+
+typedef struct sec_desc_rec {
+  WORD rev;
+  WORD type;
+  DWORD owner_off;
+  DWORD group_off;
+  DWORD sacl_off;
+  DWORD dacl_off;
+} MY_SEC_DESC;
+
+typedef struct ace_struct {
+    unsigned char type;
+    unsigned char flags;
+    unsigned short length;
+    unsigned int perms;
+    DOM_SID trustee;
+} ACE;
+
+typedef struct acl_struct {
+  WORD rev;
+  WORD size;
+  DWORD num_aces;
+  ACE *aces;   /* One or more ACEs */
+} ACL;
+
+#define OFF(f) (0x1000 + (f) + 4) 
+
+void print_sid(DOM_SID *sid)
+{
+  int i, comps = sid->num_auths;
+  fprintf(stdout, "S-%u-%u", sid->sid_rev_num, sid->id_auth[5]);
+
+  for (i = 0; i < comps; i++) {
+
+    fprintf(stdout, "-%u", sid->sub_auths[i]);
+
+  }
+  fprintf(stdout, "\n");
+}
+
+void print_acl(ACL *acl, char *prefix)
+{
+  int ace_cnt, i;
+  ACE *ace;
+
+  ace_cnt = acl->num_aces;
+  ace = &acl->aces;
+  fprintf(stdout, "%sACEs: %u\n", prefix, ace_cnt);
+  for (i=0; i<ace_cnt; i++) {
+    fprintf(stdout, "%s  Perms: %08X, SID: ", prefix, ace->perms);
+    print_sid(&ace->trustee);
+    ace = (ACE *)((char *)ace + ace->length);
+  }
+} 
+
+int main(int argc, char *argv[])
+{
+  int i, fd, aces, start = 0;
+  void *base;
+  struct stat sbuf;
+  fstring sid_str;
+  REGF_HDR *regf_hdr;
+  HBIN_HDR *hbin_hdr;
+  NK_HDR *nk_hdr;
+  SK_HDR *sk_hdr;
+  WORD first_sk_off, sk_off;
+  MY_SEC_DESC *sec_desc;
+  int *ptr;
+
+  if (argc < 2) {
+    fprintf(stderr, "Usage: profiles profile-file\n");
+    exit(1);
+  }
+
+  fd = open(argv[1], O_RDWR, 0000);
+
+  if (fd < 0) {
+    fprintf(stderr, "Could not open %s: %s\n", argv[1], 
+	strerror(errno));
+    exit(2);
+  }
+
+  if (fstat(fd, &sbuf) < 0) {
+    fprintf(stderr, "Could not stat file %s, %s\n", argv[1],
+	strerror(errno));
+    exit(3);
+  }
+
+  /*
+   * Now, mmap the file into memory, check the header and start
+   * dealing with the records. We are interested in the sk record
+   */
+  start = 0;
+  base = mmap(&start, sbuf.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+
+  if ((int)base == -1) {
+    fprintf(stderr, "Could not mmap file: %s, %s\n", argv[1],
+	strerror(errno));
+    exit(4);
+  }
+
+  regf_hdr = (REGF_HDR *)base;
+
+  fprintf(stdout, "Registry file size: %u\n", sbuf.st_size);
+
+  if (regf_hdr->REGF_ID != REG_REGF_ID) {
+    fprintf(stderr, "Incorrect Registry file (doesn't have header ID): %s\n", argv[1]);
+    exit(5);
+  }
+
+  fprintf(stdout, "First Key Off: %u, Data Block Size: %u\n",
+	  regf_hdr->first_key, regf_hdr->dblk_size);
+
+  hbin_hdr = (HBIN_HDR *)(base + 0x1000);
+
+  /*
+   * This should be the hbin_hdr 
+   */
+
+  if (hbin_hdr->HBIN_ID != REG_HBIN_ID) {
+    fprintf(stderr, "Incorrect hbin hdr: %s\n", argv[1]);
+    exit(6);
+  } 
+
+  fprintf(stdout, "Next Off: %u, Prev Off: %u\n", 
+	  hbin_hdr->next_off, hbin_hdr->prev_off);
+
+  nk_hdr = (NK_HDR *)(base + 0x1000 + regf_hdr->first_key + 4);
+
+  if (nk_hdr->NK_ID != REG_NK_ID) {
+    fprintf(stderr, "Incorrect NK Header: %s\n", argv[1]);
+    exit(7);
+  }
+
+  fprintf(stdout, "Type: %0x\n", nk_hdr->type);
+  fprintf(stdout, "SK Off    : %o\n", (0x1000 + nk_hdr->sk_off + 4));  
+
+  sk_hdr = (SK_HDR *)(base + 0x1000 + nk_hdr->sk_off + 4);
+  sk_off = first_sk_off = nk_hdr->sk_off;
+
+  do {
+    DOM_SID *owner_sid, *group_sid;
+    ACL *sacl, *dacl;
+    if (sk_hdr->SK_ID != REG_SK_ID) {
+      fprintf(stderr, "Incorrect SK Header format: %08X\n", 
+	      (0x1000 + nk_hdr->sk_off + 4));
+      exit(8);
+    }
+    ptr = (int *)sk_hdr;
+    fprintf(stdout, "Off: %08X, Refs: %u, Size: %u\n",
+	    sk_off, sk_hdr->ref_cnt, sk_hdr->rec_size);
+    sec_desc = &(sk_hdr->sec_desc[0]);
+    owner_sid = (DOM_SID *)(&sk_hdr->sec_desc[0] + sec_desc->owner_off);
+    group_sid = (DOM_SID *)(&sk_hdr->sec_desc[0] + sec_desc->group_off);
+    sacl = (ACL *)(&sk_hdr->sec_desc[0] + sec_desc->sacl_off);
+    dacl = (ACL *)(&sk_hdr->sec_desc[0] + sec_desc->dacl_off);
+    fprintf(stdout, "  Owner SID: "); print_sid(owner_sid);
+    fprintf(stdout, "  Group SID: "); print_sid(group_sid);
+    fprintf(stdout, "  SACL: ");
+    if (!sec_desc->sacl_off)
+      fprintf(stdout, "NONE\n");
+    else 
+      print_acl(sacl, "    ");
+    fprintf(stdout, "  DACL: ");
+    if (!sec_desc->dacl_off)
+      fprintf(stdout, "NONE\n");
+    else 
+      print_acl(dacl, "    ");
+    sk_off = sk_hdr->prev_off;
+    sk_hdr = (SK_HDR *)(base + OFF(sk_hdr->prev_off));
+  } while (sk_off != first_sk_off);
+
+}
+