Hi, On Mon, Mar 03, 2014 at 09:12:27PM +0100, PiBa-NL wrote: > Hi, > > Im not sure if this is the exact issue that Anup was having, and maybe > i'm hijacking his thread, if so i'm sorry for that, but when try to > check how it works i also having difficulties getting it to work as i > expected it to. > > I'm using HAProxy v1.5dev21 on FreeBSD 8.3. > > Ive written in a frontend the following which checks for a GET web > request to determine which backend to use, this works..: > mode tcp > tcp-request inspect-delay 5s > acl PAYLOADcheck req.payload(0,3) -m bin 474554 > use_backend web_80_tcp if PAYLOADcheck > tcp-request content accept if PAYLOADcheck > > However when changing the match line to the following it fails: > acl PAYLOADcheck req.payload(0,3) -m str GET > or > acl PAYLOADcheck req.payload(0,3) -m sub GET > or > acl PAYLOADcheck req.payload(0,3) -m reg -i GET > > The req.payload returns a piece of 'binary' data, but the 'compatibility > matrix' seems to say that converting for use with sub/reg/others should > not be an issue. > > Then the next step is of course to not match only the first 3 characters > but some content further in the 'middle' of the data stream.. > > Am i missing something ? Or might there be an issue with the implementation?
What you've done is absolutely correct. It is possible that there's a bug somewhere in the cast. I'm CCing Thierry who has a pending patch set of about 50 patches to rework ACLs (merge ACL+map and allow to update them on-the-fly) to ensure he checks this case. Thanks, Willy
