added lsa_QuerySecObj() and the necessary sec_desc_buf supporting code

also adding printing of security descriptors
(This used to be commit 1f93cbc1d597b973ab1a5005ede093c1bcefff87)

7 files changed, 176 insertions, 22 deletions

diff --git a/source4/librpc/ndr/libndr.h b/source4/librpc/ndr/libndr.h
index 287046ad20..a7c63f7e13 100644
--- a/source4/librpc/ndr/libndr.h
+++ b/source4/librpc/ndr/libndr.h
@@ -88,6 +88,27 @@ enum ndr_err_code {
 #define NDR_SCALARS 1
 #define NDR_BUFFERS 2
 
+#define NDR_PULL_NEED_BYTES(ndr, n) do { \
+	if ((n) > ndr->data_size || ndr->offset + (n) > ndr->data_size) { \
+		return NT_STATUS_BUFFER_TOO_SMALL; \
+	} \
+} while(0)
+
+#define NDR_PULL_ALIGN(ndr, n) do { \
+	ndr->offset = (ndr->offset + (n-1)) & ~(n-1); \
+	if (ndr->offset >= ndr->data_size) { \
+		return NT_STATUS_BUFFER_TOO_SMALL; \
+	} \
+} while(0)
+
+#define NDR_PUSH_NEED_BYTES(ndr, n) NDR_CHECK(ndr_push_expand(ndr, ndr->offset+(n)))
+
+#define NDR_PUSH_ALIGN(ndr, n) do { \
+	uint32 _pad = (ndr->offset & (n-1)); \
+	while (_pad--) NDR_CHECK(ndr_push_uint8(ndr, 0)); \
+} while(0)
+
+
 /* these are used to make the error checking on each element in libndr
    less tedious, hopefully making the code more readable */
 #define NDR_CHECK(call) do { NTSTATUS _status; \
diff --git a/source4/librpc/ndr/ndr.c b/source4/librpc/ndr/ndr.c
index 3c2ed6e55b..5add5112e7 100644
--- a/source4/librpc/ndr/ndr.c
+++ b/source4/librpc/ndr/ndr.c
@@ -50,6 +50,20 @@ struct ndr_pull *ndr_pull_init_blob(DATA_BLOB *blob, TALLOC_CTX *mem_ctx)
 	return ndr;
 }
 
+/*
+  create an ndr sub-context based on an existing context. The new context starts
+  at the current offset, with the given size limit
+*/
+NTSTATUS ndr_pull_subcontext(struct ndr_pull *ndr, struct ndr_pull *ndr2, uint32 size)
+{
+	NDR_PULL_NEED_BYTES(ndr, size);
+	*ndr2 = *ndr;
+	ndr2->data += ndr2->offset;
+	ndr2->offset = 0;
+	ndr2->data_size = size;
+	return NT_STATUS_OK;
+}
+
 
 /* limit the remaining size of the current ndr parse structure to the
    given size, starting at the given offset 
diff --git a/source4/librpc/ndr/ndr_basic.c b/source4/librpc/ndr/ndr_basic.c
index b50b614b92..89c16ca76a 100644
--- a/source4/librpc/ndr/ndr_basic.c
+++ b/source4/librpc/ndr/ndr_basic.c
@@ -22,19 +22,6 @@
 
 #include "includes.h"
 
-#define NDR_PULL_NEED_BYTES(ndr, n) do { \
-	if ((n) > ndr->data_size || ndr->offset + (n) > ndr->data_size) { \
-		return NT_STATUS_BUFFER_TOO_SMALL; \
-	} \
-} while(0)
-
-#define NDR_PULL_ALIGN(ndr, n) do { \
-	ndr->offset = (ndr->offset + (n-1)) & ~(n-1); \
-	if (ndr->offset >= ndr->data_size) { \
-		return NT_STATUS_BUFFER_TOO_SMALL; \
-	} \
-} while(0)
-
 /*
   parse a uint8
 */
@@ -152,13 +139,6 @@ NTSTATUS ndr_pull_GUID(struct ndr_pull *ndr, int ndr_flags, GUID *guid)
 }
 
 
-#define NDR_PUSH_NEED_BYTES(ndr, n) NDR_CHECK(ndr_push_expand(ndr, ndr->offset+(n)))
-
-#define NDR_PUSH_ALIGN(ndr, n) do { \
-	uint32 _pad = (ndr->offset & (n-1)); \
-	while (_pad--) NDR_CHECK(ndr_push_uint8(ndr, 0)); \
-} while(0)
-
 /*
   push a uint8
 */
diff --git a/source4/librpc/ndr/ndr_lsa.c b/source4/librpc/ndr/ndr_lsa.c
index a480e9ca62..587093ed69 100644
--- a/source4/librpc/ndr/ndr_lsa.c
+++ b/source4/librpc/ndr/ndr_lsa.c
@@ -43,6 +43,8 @@ NTSTATUS ndr_push_lsa_EnumPrivs(struct ndr_push *ndr, struct lsa_EnumPrivs *r)
 
 NTSTATUS ndr_push_lsa_QuerySecObj(struct ndr_push *ndr, struct lsa_QuerySecObj *r)
 {
+	NDR_CHECK(ndr_push_policy_handle(ndr, r->in.handle));
+	NDR_CHECK(ndr_push_uint32(ndr, r->in.sec_info));
 
 	return NT_STATUS_OK;
 }
@@ -582,6 +584,16 @@ NTSTATUS ndr_pull_lsa_EnumPrivs(struct ndr_pull *ndr, struct lsa_EnumPrivs *r)
 
 NTSTATUS ndr_pull_lsa_QuerySecObj(struct ndr_pull *ndr, struct lsa_QuerySecObj *r)
 {
+	uint32 _ptr_sd;
+	NDR_CHECK(ndr_pull_uint32(ndr, &_ptr_sd));
+	if (_ptr_sd) {
+		NDR_ALLOC(ndr, r->out.sd);
+	} else {
+		r->out.sd = NULL;
+	}
+	if (r->out.sd) {
+		NDR_CHECK(ndr_pull_sec_desc_buf(ndr, NDR_SCALARS|NDR_BUFFERS, r->out.sd));
+	}
 	NDR_CHECK(ndr_pull_NTSTATUS(ndr, &r->out.result));
 
 	return NT_STATUS_OK;
diff --git a/source4/librpc/ndr/ndr_lsa.h b/source4/librpc/ndr/ndr_lsa.h
index 109e88c84f..22a2451442 100644
--- a/source4/librpc/ndr/ndr_lsa.h
+++ b/source4/librpc/ndr/ndr_lsa.h
@@ -57,9 +57,12 @@ struct lsa_EnumPrivs {
 
 struct lsa_QuerySecObj {
 	struct {
+		struct policy_handle *handle;
+		uint32 sec_info;
 	} in;
 
 	struct {
+		struct sec_desc_buf *sd;
 		NTSTATUS result;
 	} out;
 
diff --git a/source4/librpc/ndr/ndr_sec.c b/source4/librpc/ndr/ndr_sec.c
index 0341d92951..5e4afe31a5 100644
--- a/source4/librpc/ndr/ndr_sec.c
+++ b/source4/librpc/ndr/ndr_sec.c
@@ -50,6 +50,8 @@ NTSTATUS ndr_pull_security_ace(struct ndr_pull *ndr, struct security_ace *ace)
 		if (ace->obj->flags & SEC_ACE_OBJECT_INHERITED_PRESENT) {
 			NDR_CHECK(ndr_pull_GUID(ndr, NDR_SCALARS, &ace->obj->inherit_guid));
 		}
+	} else {
+		ace->obj = NULL;
 	}
 
 
@@ -354,6 +356,44 @@ void ndr_print_dom_sid2(struct ndr_print *ndr, const char *name, struct dom_sid2
 	ndr_print_dom_sid(ndr, name, sid);
 }
 
+
+/*
+  print a security_ace
+*/
+void ndr_print_security_ace(struct ndr_print *ndr, const char *name, struct security_ace *ace)
+{
+	ndr_print_struct(ndr, name, "security_ace");
+	ndr->depth++;
+	ndr_print_uint8(ndr, "type", ace->type);
+	ndr_print_uint8(ndr, "flags", ace->flags);
+	ndr_print_uint32(ndr, "access_mask", ace->access_mask);
+	if (ace->obj) {
+		ndr_print_struct(ndr, name, "security_ace_obj");
+		ndr->depth++;
+		ndr_print_uint32(ndr, "flags", ace->obj->flags);
+		ndr_print_GUID(ndr, "object_guid", &ace->obj->object_guid);
+		ndr_print_GUID(ndr, "inherit_guid", &ace->obj->inherit_guid);
+		ndr->depth--;
+	}
+	ndr_print_dom_sid(ndr, "trustee", &ace->trustee);
+	ndr->depth--;
+}
+
+/*
+  print a security_acl
+*/
+void ndr_print_security_acl(struct ndr_print *ndr, const char *name, struct security_acl *acl)
+{
+	ndr_print_struct(ndr, name, "security_acl");
+	ndr->depth++;
+	ndr_print_uint16(ndr, "revision", acl->revision);
+	ndr_print_uint32(ndr, "num_aces", acl->num_aces);
+	ndr_print_array(ndr, "aces", acl->aces, 
+			sizeof(acl->aces[0]), acl->num_aces,
+			(ndr_print_fn_t) ndr_print_security_ace);
+	ndr->depth--;
+}
+
 /*
   print a security descriptor 
 */
@@ -361,8 +401,75 @@ void ndr_print_security_descriptor(struct ndr_print *ndr,
 				   const char *name,
 				   struct security_descriptor *sd)
 {
-	ndr->print(ndr, "%-25s: ndr_print_security_descriptor not implemented", 
-		   name);
+	ndr_print_struct(ndr, name, "security_descriptor");
+	ndr->depth++;
+	ndr_print_uint8(ndr, "revision", sd->revision);
+	ndr_print_uint16(ndr, "type", sd->type);
+	ndr_print_ptr(ndr, "owner_sid", sd->owner_sid);
+	if (sd->owner_sid) {
+		ndr_print_dom_sid(ndr, "owner_sid", sd->owner_sid);
+	}
+	ndr_print_ptr(ndr, "group_sid", sd->group_sid);
+	if (sd->group_sid) {
+		ndr_print_dom_sid(ndr, "group_sid", sd->group_sid);
+	}
+	ndr_print_ptr(ndr, "sacl", sd->sacl);
+	if (sd->sacl) {
+		ndr_print_security_acl(ndr, "sacl", sd->sacl);
+	}
+	ndr_print_ptr(ndr, "dacl", sd->dacl);
+	if (sd->dacl) {
+		ndr_print_security_acl(ndr, "dacl", sd->dacl);
+	}
+	ndr->depth--;
+}
+
+
+
+/*
+  implementation of sec_desc_buf - an encapsulated security descriptor
+*/
+NTSTATUS ndr_pull_sec_desc_buf(struct ndr_pull *ndr, int ndr_flags, 
+			       struct sec_desc_buf *sdbuf)
+{
+	if (ndr_flags & NDR_SCALARS) {
+		uint32 _ptr;
+		NDR_CHECK(ndr_pull_uint32(ndr, &sdbuf->size));		
+		NDR_CHECK(ndr_pull_uint32(ndr, &_ptr));
+		if (_ptr) {
+			NDR_ALLOC(ndr, sdbuf->sd);
+		} else {
+			sdbuf->sd = NULL;
+		}
+	}
+	if (ndr_flags & NDR_BUFFERS) {
+		if (sdbuf->sd) {
+			struct ndr_pull ndr2;
+			uint32 size;
+			NDR_CHECK(ndr_pull_uint32(ndr, &size));
+			if (size != sdbuf->size) {
+				return NT_STATUS_INFO_LENGTH_MISMATCH;
+			}
+			NDR_CHECK(ndr_pull_subcontext(ndr, &ndr2, sdbuf->size));
+			NDR_CHECK(ndr_pull_security_descriptor(&ndr2, sdbuf->sd));
+			NDR_CHECK(ndr_pull_advance(ndr, sdbuf->size));
+		}
+	}
+	return NT_STATUS_OK;
 }
 
 
+/*
+  print a sec_desc_buf
+*/
+void ndr_print_sec_desc_buf(struct ndr_print *ndr, const char *name,
+			    struct sec_desc_buf *sdbuf)
+{
+	ndr_print_struct(ndr, name, "sec_desc_buf");
+	ndr->depth++;
+	ndr_print_uint32(ndr, "size", sdbuf->size);
+	ndr_print_ptr(ndr, "sd", sdbuf->sd);
+	if (sdbuf->sd) {
+		ndr_print_security_descriptor(ndr, "sd", sdbuf->sd);
+	}
+}
diff --git a/source4/librpc/ndr/ndr_sec.h b/source4/librpc/ndr/ndr_sec.h
index 79ba5b1564..81a3d6a944 100644
--- a/source4/librpc/ndr/ndr_sec.h
+++ b/source4/librpc/ndr/ndr_sec.h
@@ -72,6 +72,23 @@ struct security_descriptor {
 	struct security_acl *dacl; /* user (discretionary) ACL */
 };
 
+
+/*
+  a security descriptor encapsulated in a buffer.
+  It is like this IDL:
+  typedef struct {
+       uint32 size;
+       [size_is(size)] uint8 *buf;
+  } sec_desc_buf;
+*/
+struct sec_desc_buf {
+	uint32 size; /* the sd wire size - auto-generated */
+	struct security_descriptor *sd;
+};
+
+
+
+
 /* query security descriptor */
 struct smb_query_secdesc {
 	struct {