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-rw-r--r--source4/include/smb_interfaces.h3
-rw-r--r--source4/librpc/ndr/ndr_sec.c66
2 files changed, 68 insertions, 1 deletions
diff --git a/source4/include/smb_interfaces.h b/source4/include/smb_interfaces.h
index af9f6efd7a..370afb09ea 100644
--- a/source4/include/smb_interfaces.h
+++ b/source4/include/smb_interfaces.h
@@ -55,6 +55,9 @@ typedef struct {
*/
#define dom_sid2 dom_sid
+/* same struct as dom_sid but inside a 28 bytes fixed buffer in NDR */
+#define dom_sid28 dom_sid
+
/*
this header defines the structures and unions used between the SMB
diff --git a/source4/librpc/ndr/ndr_sec.c b/source4/librpc/ndr/ndr_sec.c
index 22479be7e5..73d9ddc1d1 100644
--- a/source4/librpc/ndr/ndr_sec.c
+++ b/source4/librpc/ndr/ndr_sec.c
@@ -56,6 +56,65 @@ NTSTATUS ndr_push_dom_sid2(struct ndr_push *ndr, int ndr_flags, struct dom_sid *
return ndr_push_dom_sid(ndr, ndr_flags, sid);
}
+/*
+ parse a dom_sid28 - this is a dom_sid in a fixed 28 byte buffer, so we need to ensure there are only upto 5 sub_auth
+*/
+NTSTATUS ndr_pull_dom_sid28(struct ndr_pull *ndr, int ndr_flags, struct dom_sid *sid)
+{
+ NTSTATUS status;
+ struct ndr_pull *subndr;
+
+ if (!(ndr_flags & NDR_SCALARS)) {
+ return NT_STATUS_OK;
+ }
+
+ subndr = talloc_zero(ndr, struct ndr_pull);
+ NT_STATUS_HAVE_NO_MEMORY(subndr);
+
+ subndr->data = ndr->data + ndr->offset;
+ subndr->data_size = 28;
+ subndr->offset = 0;
+
+ NDR_CHECK(ndr_pull_advance(ndr, 28));
+
+ status = ndr_pull_dom_sid(subndr, ndr_flags, sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ /* handle a w2k bug which send random data in the buffer */
+ ZERO_STRUCTP(sid);
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*
+ push a dom_sid28 - this is a dom_sid in a 28 byte fixed buffer
+*/
+NTSTATUS ndr_push_dom_sid28(struct ndr_push *ndr, int ndr_flags, struct dom_sid *sid)
+{
+ uint32_t old_offset;
+ uint32_t padding;
+
+ if (!(ndr_flags & NDR_SCALARS)) {
+ return NT_STATUS_OK;
+ }
+
+ if (sid->num_auths > 5) {
+ return ndr_push_error(ndr, NDR_ERR_RANGE,
+ "dom_sid28 allows only upto 5 sub auth [%u]",
+ sid->num_auths);
+ }
+
+ old_offset = ndr->offset;
+ NDR_CHECK(ndr_push_dom_sid(ndr, ndr_flags, sid));
+
+ padding = 28 - (ndr->offset - old_offset);
+
+ if (padding > 0) {
+ NDR_CHECK(ndr_push_zero(ndr, padding));
+ }
+
+ return NT_STATUS_OK;
+}
/*
print a dom_sid
@@ -65,7 +124,12 @@ void ndr_print_dom_sid(struct ndr_print *ndr, const char *name, struct dom_sid *
ndr->print(ndr, "%-25s: %s", name, dom_sid_string(ndr, sid));
}
-void ndr_print_dom_sid2(struct ndr_print *ndr, const char *name, struct dom_sid2 *sid)
+void ndr_print_dom_sid2(struct ndr_print *ndr, const char *name, struct dom_sid *sid)
+{
+ ndr_print_dom_sid(ndr, name, sid);
+}
+
+void ndr_print_dom_sid28(struct ndr_print *ndr, const char *name, struct dom_sid *sid)
{
ndr_print_dom_sid(ndr, name, sid);
}