Re: [PATCH] netfilter: nf_queue: Replace conntrack entry
From: Dan Carpenter
Date: Mon May 07 2018 - 04:08:30 EST
Hi Kristian,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on nf-next/master]
[also build test WARNING on v4.17-rc3 next-20180504]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Kristian-Evensen/netfilter-nf_queue-Replace-conntrack-entry/20180504-051218
base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master
smatch warnings:
net/netfilter/nfnetlink_queue.c:1141 nfqnl_recv_verdict_batch() warn: curly braces intended?
# https://github.com/0day-ci/linux/commit/8776e32a6c6e2ba0c6c8ce85e227672b81a1649d
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout 8776e32a6c6e2ba0c6c8ce85e227672b81a1649d
vim +1141 net/netfilter/nfnetlink_queue.c
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1093
7b8002a1 net/netfilter/nfnetlink_queue.c Pablo Neira Ayuso 2015-12-15 1094 static int nfqnl_recv_verdict_batch(struct net *net, struct sock *ctnl,
7b8002a1 net/netfilter/nfnetlink_queue.c Pablo Neira Ayuso 2015-12-15 1095 struct sk_buff *skb,
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1096 const struct nlmsghdr *nlh,
04ba724b net/netfilter/nfnetlink_queue.c Pablo Neira Ayuso 2017-06-19 1097 const struct nlattr * const nfqa[],
04ba724b net/netfilter/nfnetlink_queue.c Pablo Neira Ayuso 2017-06-19 1098 struct netlink_ext_ack *extack)
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1099 {
3da07c0c net/netfilter/nfnetlink_queue_core.c David S. Miller 2012-06-26 1100 struct nfgenmsg *nfmsg = nlmsg_data(nlh);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1101 struct nf_queue_entry *entry, *tmp;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1102 unsigned int verdict, maxid;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1103 struct nfqnl_msg_verdict_hdr *vhdr;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1104 struct nfqnl_instance *queue;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1105 LIST_HEAD(batch_list);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1106 u16 queue_num = ntohs(nfmsg->res_id);
e8179610 net/netfilter/nfnetlink_queue_core.c Gao feng 2013-03-24 1107 struct nfnl_queue_net *q = nfnl_queue_pernet(net);
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1108 enum ip_conntrack_info ctinfo;
e8179610 net/netfilter/nfnetlink_queue_core.c Gao feng 2013-03-24 1109
e8179610 net/netfilter/nfnetlink_queue_core.c Gao feng 2013-03-24 1110 queue = verdict_instance_lookup(q, queue_num,
e8179610 net/netfilter/nfnetlink_queue_core.c Gao feng 2013-03-24 1111 NETLINK_CB(skb).portid);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1112 if (IS_ERR(queue))
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1113 return PTR_ERR(queue);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1114
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1115 vhdr = verdicthdr_get(nfqa);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1116 if (!vhdr)
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1117 return -EINVAL;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1118
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1119 verdict = ntohl(vhdr->verdict);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1120 maxid = ntohl(vhdr->id);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1121
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1122 spin_lock_bh(&queue->lock);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1123
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1124 list_for_each_entry_safe(entry, tmp, &queue->queue_list, list) {
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1125 if (nfq_id_after(entry->id, maxid))
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1126 break;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1127 __dequeue_entry(queue, entry);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1128 list_add_tail(&entry->list, &batch_list);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1129 }
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1130
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1131 spin_unlock_bh(&queue->lock);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1132
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1133 if (list_empty(&batch_list))
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1134 return -ENOENT;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1135
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1136 list_for_each_entry_safe(entry, tmp, &batch_list, list) {
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1137 if (nfqa[NFQA_MARK])
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1138 entry->skb->mark = ntohl(nla_get_be32(nfqa[NFQA_MARK]));
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1139
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1140 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 @1141 nf_ct_get(entry->skb, &ctinfo);
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1142
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1143 if (ctinfo == IP_CT_NEW && verdict != NF_STOLEN &&
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1144 verdict != NF_DROP) {
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1145 nfqnl_update_ct(net, entry->skb);
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1146 }
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1147 #endif
8776e32a net/netfilter/nfnetlink_queue.c Kristian Evensen 2018-05-03 1148
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1149 nf_reinject(entry, verdict);
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1150 }
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1151 return 0;
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1152 }
97d32cf9 net/netfilter/nfnetlink_queue.c Florian Westphal 2011-07-19 1153
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