search for: oacks

Hello! I recently started testing curl's tftp options, and found that it crashed when trying to upload files using tftp because it didn't handle OACK properly. So, I'm attempting to fix it. Now, I have an endless loop: The client (my hacked curl) sends TFTP write request with options, server responds with OACK (tsize, blksize) client sends data packet, block 0 BUT: server responds

After the PXE PROM code downloads and runs the pxelinux.0 image and it tries to download config information the client stops acknowledging the server OACK packets from the server. pxelinux from syslinux 3.11 from Fedora RPM, accessing Solaris 10 in.tftpd The tftp client in pxelinux.0 sends a tftp file read request with extended options tsize \00 0 \00 blksize \00 1440 \00 and then the server

I'm trying to network-boot a GCT Allwell set-top box without success. My frustration level is high. The problem seems to be that the Allwell is sending a RRQ with an option. tftp-hpa responds with an OACK, and waits for the corresponding ACK from the Allwell. The Allwell never sends that ACK, but instead continues with the same RRQ until timeout. Having read RFC1782, this makes me think

The current code only works iff the tsize option is set. This patch fixes the handling of the OACK packet and makes the code work with all combinations of the tsize and blksize options. Signed-off-by: Sebastian Herbszt <herbszt at gmx.de> diff --git a/core/pxe.c b/core/pxe.c index 81d3e23..a4b8a14 100644 --- a/core/pxe.c +++ b/core/pxe.c @@ -913,8 +913,10 @@ static void pxe_searchdir(char

I forgot tftp32 log. Here it is, starting from "default" file request: Connection received from 192.168.1.20 on port 57099 [31/05 10:51: 29.370] Read request for file <pxelinux.cfg/default>. Mode octet [31/05 10:51:29.370] OACK: <tsize=938,> [31/05 10:51:29.420] Using local port 1286 [31/05 10:51:29.420] Connection received from 192.168.1.20 on port 57100 [31/05

the current code can just handle one option beacuse I put the do-while loop in the wrong position. Signed-off-by: Liu Aleaxander <Aleaxander at gmail.com> --- core/pxe.c | 26 +++++++++++++------------- 1 files changed, 13 insertions(+), 13 deletions(-) diff --git a/core/pxe.c b/core/pxe.c index 81d3e23..bda1a54 100644 --- a/core/pxe.c +++ b/core/pxe.c @@ -928,20 +928,20 @@ static void

I made other tests. It's not a matter of Win98 versus WinXP, things change passing from tftpd32 v310beta to v3.33. This version seems to work fine, but the logs show problems. Here is the complete log with pxelinux 3.82-pre4: Rcvd DHCP Discover Msg for IP 0.0.0.0, Mac 00:1E: 68:A6:9E:A9 [05/06 18:24:43.816] DHCP: proposed address 192.168.1.20 [05/06 18:24:43.816] 1356 Request 2 not

Gene, Where did you find the precompiled binaries for syslinux 6.03-pre7? Actually, I'm interested in the pre-compiled binaries for syslinux 6.03-pre6. I went out to kernel.org, but the latest they have is 6.02. Which appears to have an endian problem in its TFTP client code (when syslinux.efi tries to connect to the TFTP server, attempts to connect to UDP port 17664 instead of 69).

H Peter, I notice the Intel Boot Agent (in the BOOT ROM) takes a different approach. When TFTP loading the initial syslinux.efi. It receives the OACK with both options set -- tsize (of 145744) and blksize (of 1408). Apparently it has challenges parsing this "two option" OACK packet. But it remembers the tsize of 145744. So it issues another read request, this time requesting only a

I'm going to push out a Syslinux 3.82 later today unless someone yells... -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.

Still interested in pre-compiled binaries for 6.03-pre6. But my comment about 6.02 TFTP brokenness may speak more to my lack of understanding of the TFTP protocol than to any pxelinux 6.02 code problems. It seems that when TFTP sends an OACK back to syslinux.efi, it sends it from another port than 69. So, it seems to be opening a data connection back to the TFTP client off an ephemeral port.

Hi, We have been using PXELinux 2.0 for a few weeks now. So far so good, but recently we found out that newer 3com network cards with PXE2.2 wont boot. When flash these cards with an older PXE2.0 than everything works okay. Anyone else having this problem? Vincent

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Hi, I've been looking at the pxelinux code and I was wondering a couple of things: 1) Why does pxelinux create UDP packets from scratch instead of use the Intel PXE TFTP OPEN/CLOSE/READ calls? I'm assuming this is to support TFTP options like tsize right? Did earlier versions of pxelinux use the TFTP calls directly? 2) How big of an image can pxelinux download (minus memory

Hi, The tftpd can not handle a request with the multicast option set. If the request has additional options eg. blksize, all options are discarded and a oack is newer sent. The client works fine with the atftpd server. I am not after an implementation of the multicast feature. However, the server should not discard the other options. Any thoughts about this? Regards, Robin Theander. --

Uploading a >32MB file from a recent curl to tftpd fails because when the block number rolls back to 0, tftpd transmits the option ack again, instead of transmitting an acknowledgment for the block received. You don't see this problem when using the bundled tftp client because it doesn't set any of the options when uploading a file. Attached is a patch that fixes this, tested against

Hello Andreas, Andreas Gruenbacher wrote: > Hi, > > On 01/16/2015 12:19 AM, Sebastian Herbszt wrote: > > Andreas Gruenbacher wrote: > >> "Loading <FILE>... failed: No such file or directory" when the TFTP > >> server replies with "Permission denied" for the kernel or initrd. > > [...] > > > > The (almost untested) patch

Gene and co, Now my pxelinux efi 64 boot is properly loading syslinux.efi (via TFTP) It then issues a TFTP file request for efi.x64/pxelinux.cfg/ldlinux.e64. (All my efi x64 content is under efi.x64/pxelinux.cfg). However, I see that it fails to properly negotiate the TFTP options with my TFTP server. so it never transfers ldlinux.e64 over. In its file request packet, it asks for these TFTP

Hi everyone, I have pushed out Syslinux 3.82 to the usual places. Again, special thanks to my employer, Intel, for letting me spend time working on this stuff ;) -hpa Syslinux 3.82 is a bug fix release for 3.81. Changes in 3.82: * isohybrid: fix the -partok logic for loading from a partition. * ISOLINUX: deal with systems which return from INT 13h with interrupts

Hi, Using syslinux 3.80, I'm seeing pxelinux.bin hanging after the (succesfull) transfer of the default file. Running a lan trace, it appears that all goes fine until the time pxelinux sends a TFTP RRQ for menu.c32 to the TFTP server, gets the first data packet back, and apparently freezes at this point. The TFTP server then times out and retries (3 times) then finally sends an error packet