KnowledgeHub
Questions
Tags
Users
Search
Alex Rivera
|
Logout
Edit Question
Title
Body
If I write a few kernel modules, and in all of them specify they should be the first (or last) netfilter hook called, in what order will they actually be called? netfilter_ops_out.hook = hook_func_out; netfilter_ops_out.pf = PF_INET; netfilter_ops_out.hooknum = NF_IP_LOCAL_OUT; netfilter_ops_out.priority = NF_IP_PRI_FIRST; ret = nf_register_hook(&netfilter_ops_out); if (0 > ret) { printk("Error registering netfilter hook: %d\n", ret); return ret; } netfilter_ops_in.hook = hook_func_in; netfilter_ops_in.pf = PF_INET; netfilter_ops_in.hooknum = NF_IP_LOCAL_IN; netfilter_ops_in.priority = NF_IP_PRI_LAST; ret = nf_register_hook(&netfilter_ops_in); if (0 > ret) { printk("Error registering netfilter hook: %d\n", ret); return ret; } Experimentally, I made two modules, insmod ed them in the two different orders - but they gave the same result, implying there's some suborder that's not just 'first come first serve'. (It's also not alphabetical...)
Tags (comma-separated)
Save Edits
Cancel