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-rw-r--r--source4/libcli/smb2/request.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/source4/libcli/smb2/request.c b/source4/libcli/smb2/request.c
index 35229dc45f..7a0311f886 100644
--- a/source4/libcli/smb2/request.c
+++ b/source4/libcli/smb2/request.c
@@ -549,6 +549,33 @@ NTSTATUS smb2_pull_o32s32_blob(struct smb2_request_buffer *buf, TALLOC_CTX *mem_
}
/*
+ pull a uint16_t ofs/ uint32_t length/blob triple from a data blob
+ the ptr points to the start of the offset/length pair
+
+ In this varient the uint16_t is padded by an extra 2 bytes, making
+ the size aligned on 4 byte boundary
+*/
+NTSTATUS smb2_pull_o16As32_blob(struct smb2_request_buffer *buf, TALLOC_CTX *mem_ctx, uint8_t *ptr, DATA_BLOB *blob)
+{
+ uint32_t ofs, size;
+ if (smb2_oob(buf, ptr, 8)) {
+ return NT_STATUS_BUFFER_TOO_SMALL;
+ }
+ ofs = SVAL(ptr, 0);
+ size = IVAL(ptr, 4);
+ if (ofs == 0 || size == 0) {
+ *blob = data_blob(NULL, 0);
+ return NT_STATUS_OK;
+ }
+ if (smb2_oob(buf, buf->hdr + ofs, size)) {
+ return NT_STATUS_BUFFER_TOO_SMALL;
+ }
+ *blob = data_blob_talloc(mem_ctx, buf->hdr + ofs, size);
+ NT_STATUS_HAVE_NO_MEMORY(blob->data);
+ return NT_STATUS_OK;
+}
+
+/*
pull a uint32_t length/ uint32_t ofs/blob triple from a data blob
the ptr points to the start of the offset/length pair
*/