I'm using dnsmaq as tftp server. When I execute tftp file on barebox 2016.07.0 I get the required file, but dnsmasq complains about missing ACK (my interpretation of dnsmaq source code). If I'm performing the same operation in Linux using busybox ftfp - everything is OK, i.e. instead of "failed sending" I get "sent". Is this a desired barebox tftp behavior? dnsmasq log: Jan 23 08:30:25 buildroot daemon.err dnsmasq-tftp[225]: error 0 received from 192.168.0.79 Jan 23 08:30:25 buildroot daemon.info dnsmasq-tftp[225]: failed sending /data/tftp/vmlinuz.bin to 192.168.0.79 Relevant dnsmaq code in [1], see how endcon is set: if (difftime(now, transfer->timeout) >= 0.0) { int endcon = 0; /* timeout, retransmit */ transfer->timeout += 1 + (1<<transfer->backoff); /* we overwrote the buffer... */ daemon->srv_save = NULL; if ((len = get_block(daemon->packet, transfer)) == -1) { len = tftp_err_oops(daemon->packet, transfer->file->filename); endcon = 1; } /* don't complain about timeout when we're awaiting the last ACK, some clients never send it */ else if (++transfer->backoff > 7 && len != 0) { endcon = 1; len = 0; } if (len != 0) while(sendto(transfer->sockfd, daemon->packet, len, 0, (struct sockaddr *)&transfer->peer, sa_len(&transfer->peer)) == -1 && errno == EINTR); if (endcon || len == 0) { strcpy(daemon->namebuff, transfer->file->filename); sanitise(daemon->namebuff); my_syslog(MS_TFTP | LOG_INFO, endcon ? _("failed sending %s to %s") : _("sent %s to %s"), daemon->namebuff, daemon->addrbuff); /* unlink */ *up = tmp; if (endcon) free_transfer(transfer); else { /* put on queue to be sent to script and deleted */ transfer->next = daemon->tftp_done_trans; daemon->tftp_done_trans = transfer; } continue; } } [1] http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=blob;f=src/tftp.c;h=618c4062e07234336e09a6689a265763a4d7981c;hb=HEAD#l570 Yegor _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox