Haproxy acl on ip range with ip from header instead of src

Help!
1

Howdy Folks,

I understand that it is possible to create an acl for IP ranges based on src like:
acl white_list src 192.168.1.0/24 192.168.10.0/24
But is it possible to do the same if the IP is based on an http header? I tried something like:
acl white_list req.hdr(X-Actual-IP) 192.168.1.0/24 192.168.10.0/24
and it doesn’t work, I’m assuming it’s doing a string match which isn’t what I want. Is there a way to treat the value of a request header as an IP in an acl?

Cheers,
Kelvin

2

You probably want to use set-src here, then your src directive in your ACL will work.

3

Hmm, ya thanks! That’s one way of doing it but this may interfere with other ACLs that already leverages the existing src. I can work around it but if there’s no other solution, I’ll go with this approach.

4

You need -m ip as per ACL basics :

acl white_list req.hdr(X-Actual-IP) -m ip 192.168.1.0/24 192.168.10.0/24

1 Like
5

Thanks @lukastribus! That works. Funny because I tried the solution from @supermathie and couldn’t get it to really work because of a bug that y’all both worked on: "http-request set-src" affects connection, not transaction or request · Issue #90 · haproxy/haproxy · GitHub

2 Likes