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authorRichard Sharpe <sharpe@samba.org>2002-12-15 06:39:17 +0000
committerRichard Sharpe <sharpe@samba.org>2002-12-15 06:39:17 +0000
commit01a6f42443b7d7693c3727a0f962bc0bd12e2b17 (patch)
treed94560175190abf6db2f219aa61a6289ba27be2b
parent4fb520c45fd90f0615241d596c26933be224e950 (diff)
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Almost finished processing the registry encoded SEC DESC ...
Soon to move onto writing these things out. (This used to be commit eb2f1c826b28647fc99b46e203fe90147f7f3d05)
-rw-r--r--source3/utils/editreg.c103
1 files changed, 102 insertions, 1 deletions
diff --git a/source3/utils/editreg.c b/source3/utils/editreg.c
index 0a526e5abe..d6bf0828f2 100644
--- a/source3/utils/editreg.c
+++ b/source3/utils/editreg.c
@@ -711,6 +711,21 @@ typedef struct sk_struct {
char sec_desc[1];
} SK_HDR;
+typedef struct ace_struct {
+ unsigned char type;
+ unsigned char flags;
+ unsigned short length;
+ unsigned int perms;
+ DOM_SID trustee;
+} REG_ACE;
+
+typedef struct acl_struct {
+ WORD rev;
+ WORD size;
+ DWORD num_aces;
+ REG_ACE *aces; /* One or more ACEs */
+} REG_ACL;
+
typedef struct sec_desc_rec {
WORD rev;
WORD type;
@@ -991,17 +1006,95 @@ KEY_SEC_DESC *lookup_create_sec_key(REGF *regf, SK_MAP *sk_map, int sk_off)
}
}
+/*
+ * Allocate storage and uplicate a SID
+ * We could allocate the SID to be only the size needed, but I am too lazy.
+ */
+DOM_SID *dup_sid(DOM_SID *sid)
+{
+ DOM_SID *tmp = (DOM_SID *)malloc(sizeof(DOM_SID));
+ int i;
+
+ if (!tmp) return NULL;
+ tmp->ver = sid->ver;
+ tmp->auths = sid->auths;
+ for (i=0; i<6; i++) {
+ tmp->auth[i] = sid->auth[i];
+ }
+ for (i=0; i<tmp->auths; i++) {
+ tmp->sub_auths[i] = sid->sub_auths[i];
+ }
+ return tmp;
+}
+
+/*
+ * Allocate space for an ACE and duplicate the registry encoded one passed in
+ */
+ACE *dup_ace(REG_ACE *ace)
+{
+ ACE *tmp = NULL;
+
+ return tmp;
+}
+
+/*
+ * Allocate space for an ACL and duplicate the registry encoded one passed in
+ */
+ACL *dup_acl(REG_ACL *acl)
+{
+ ACL *tmp = NULL;
+ REG_ACE* ace;
+ int i, num_aces;
+
+ num_aces = IVAL(&acl->num_aces);
+
+ tmp = (ACL *)malloc(sizeof(ACL) + (num_aces - 1)*sizeof(ACE *));
+ if (!tmp) return NULL;
+
+ tmp->num_aces = num_aces;
+ tmp->refcnt = 1;
+ tmp->rev = SVAL(&acl->rev);
+ ace = (REG_ACE *)&acl->aces;
+ for (i=0; i<num_aces; i++) {
+ tmp->aces[i] = dup_ace(ace);
+ /* XXX: FIXME, should handle malloc errors */
+ }
+
+ return tmp;
+}
+
SEC_DESC *process_sec_desc(REGF *regf, REG_SEC_DESC *sec_desc)
{
SEC_DESC *tmp = NULL;
+ tmp = (SEC_DESC *)malloc(sizeof(SEC_DESC));
+
+ if (!tmp) {
+ return NULL;
+ }
+
+ tmp->rev = SVAL(&sec_desc->rev);
+ tmp->type = SVAL(&sec_desc->type);
+ tmp->owner = dup_sid((DOM_SID *)(sec_desc + IVAL(&sec_desc->owner_off)));
+ if (!tmp->owner) {
+ free(tmp);
+ return NULL;
+ }
+ tmp->group = dup_sid((DOM_SID *)(sec_desc + IVAL(&sec_desc->owner_off)));
+ if (!tmp->group) {
+ free(tmp);
+ return NULL;
+ }
+
+ /* Now pick up the SACL and DACL */
+
return tmp;
}
KEY_SEC_DESC *process_sk(REGF *regf, SK_HDR *sk_hdr, int sk_off, int size)
{
KEY_SEC_DESC *tmp = NULL;
- int sk_next_off, sk_prev_off;
+ int sk_next_off, sk_prev_off, sk_size;
REG_SEC_DESC *sec_desc;
if (!sk_hdr) return NULL;
@@ -1012,6 +1105,12 @@ KEY_SEC_DESC *process_sk(REGF *regf, SK_HDR *sk_hdr, int sk_off, int size)
return NULL;
}
+ if (-size < (sk_size = IVAL(&sk_hdr->rec_size))) {
+ fprintf(stderr, "Incorrect SK record size: %d vs %d. %s\n",
+ -size, sk_size, regf->regfile_name);
+ return NULL;
+ }
+
/*
* Now, we need to look up the SK Record in the map, and return it
* Since the map contains the SK_OFF mapped to KEY_SEC_DESC, we can
@@ -1043,6 +1142,8 @@ KEY_SEC_DESC *process_sk(REGF *regf, SK_HDR *sk_hdr, int sk_off, int size)
/*
* Allocate an entry in the SK_MAP ...
+ * We don't need to free tmp, because that is done for us if the
+ * sm_map entry can't be expanded when we need more space in the map.
*/
if (!alloc_sk_map_entry(regf, tmp, sk_off)) {