On Sun, 2003-02-16 at 04:49, atit_ldce wrote: > how aclMatchAclList function works? > can u explain structures used for acl. just give explanation of fields within >structures
it's built up: first you have an acl, which store the data for one acl ie in squid.conf acl foo dstdomain foo.com acl foo dstdomain bar.com results in a single acl structure that contains both foo.com and bar.com. Then you have acl_access structures. Each acl_access structure links a set of acl's, with an optional negate (!), and an action to take. i.e. http_access deny !foo results in a acl_access structure that has an action of deny contains a single acl - foo, with operator (!) against the result of foo. Finally, you have an acl checklist, which is used to evaluate against an acl_access list, and through there the acl's. During a check operation on the checklist, after each acl is checked, an async activity (ie dns lookup) may be triggered. If that is triggered, checklist processing stops until it completes. This is a lot more clear in the current HEAD code, where I have put some effort into seprating out the components more. Rob -- GPG key available at: <http://users.bigpond.net.au/robertc/keys.txt>.
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