Don't stop download if tftp server sends packets smaller than the negotiated mtu
diff --git a/stage2/pxe/tftp.c b/stage2/pxe/tftp.c
index 9e546599..83435652 100644
--- a/stage2/pxe/tftp.c
+++ b/stage2/pxe/tftp.c
@@ -61,6 +61,8 @@ int tftp_open(struct tftp_file_handle* handle, uint32_t server_ip, uint16_t serv
size_t to_transfer = handle->file_size;
size_t progress = 0;
+ bool slow = false;
+
while (to_transfer > 0) {
volatile struct pxenv_read read = {
.boff = ((uint16_t)rm_off(buf)),
@@ -72,8 +74,9 @@ int tftp_open(struct tftp_file_handle* handle, uint32_t server_ip, uint16_t serv
}
memcpy(handle->data + progress, buf, read.bsize);
- if (read.bsize < mtu) {
- break;
+ if (read.bsize < mtu && !slow) {
+ slow = true;
+ print("Server is sending the file in smaller packets (it sent %d bytes), download might take longer.\n", read.bsize);
}
to_transfer -= read.bsize;
progress += read.bsize;
