s3:smbd: add helper macros to access smb2req->{in,out}.vector[]

For SMB3 encryption we need to change the vector layout
and we better hide this behind some central macros.

metze

diff --git a/source3/smbd/globals.h b/source3/smbd/globals.h
index 94098f028185b26487f903c7a09dd51d9acb1b34..cf9d01b9f704aa3453fff248bb9ad98ff433eaec 100644 (file)
--- a/source3/smbd/globals.h
+++ b/source3/smbd/globals.h
@@ -474,6 +474,24 @@ struct smbd_smb2_request {
         */
        struct tevent_req *subreq;
 
+#define SMBD_SMB2_IN_HDR_IOV(req)    (&req->in.vector[req->current_idx+0])
+#define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
+#define SMBD_SMB2_IN_BODY_IOV(req)   (&req->in.vector[req->current_idx+1])
+#define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
+#define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
+#define SMBD_SMB2_IN_DYN_IOV(req)    (&req->in.vector[req->current_idx+2])
+#define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
+#define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
+
+#define SMBD_SMB2_OUT_HDR_IOV(req)   (&req->out.vector[req->current_idx+0])
+#define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
+#define SMBD_SMB2_OUT_BODY_IOV(req)  (&req->out.vector[req->current_idx+1])
+#define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
+#define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
+#define SMBD_SMB2_OUT_DYN_IOV(req)   (&req->out.vector[req->current_idx+2])
+#define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
+#define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
+
        struct {
                /* the NBT header is not allocated */
                uint8_t nbt_hdr[4];