[syslinux] Baking Cookies

H. Peter Anvin hpa at zytor.com
Wed Nov 20 14:54:45 PST 2013


On 11/20/2013 01:11 PM, Santillanes, Russel wrote:
> I think my oven is broken, but maybe I have the recipe wrong.
> 
> I've been trying to utilize the lwIP stack and dmi information to avoid iPXE use. I can do a SYSAPPEND 0x00080 and it shows up in /proc/cmdline after booting the kernel, but tcpdump is not revealing the cookies as described during HTTP calls in the documentation.
> 
> Trying the magic "SENDCOOKIES" parameter outside of an inline SYSAPPEND  call just gives me an "Error: An undefined symbol was referenced"
> 
> I'm using 6.02 and lpxelinux.0; Loading lpxelinux.0 over tftp, kernel/initrd over http (see below)
> 

Hmm... I wonder if we are missing an __export in http.c:

__export void http_bake_cookies(void)

If you have the ability to rebuild Syslinux, could you try adding the
above and see if it helps?

	-hpa



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