mirror of https://gitee.com/openkylin/linux.git
netfilter: nf_conntrack: pass timeout array to l4->new and l4->packet
This patch defines a new interface for l4 protocol trackers: unsigned int *(*get_timeouts)(struct net *net); that is used to return the array of unsigned int that contains the timeouts that will be applied for this flow. This is passed to the l4proto->new(...) and l4proto->packet(...) functions to specify the timeout policy. This interface allows per-net global timeout configuration (although only DCCP supports this by now) and it will allow custom custom timeout configuration by means of follow-up patches. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
parent
b888341c7f
commit
2c8503f55f
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@ -39,12 +39,13 @@ struct nf_conntrack_l4proto {
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unsigned int dataoff,
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enum ip_conntrack_info ctinfo,
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u_int8_t pf,
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unsigned int hooknum);
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unsigned int hooknum,
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unsigned int *timeouts);
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/* Called when a new connection for this protocol found;
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* returns TRUE if it's OK. If so, packet() called next. */
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bool (*new)(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff);
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unsigned int dataoff, unsigned int *timeouts);
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/* Called when a conntrack entry is destroyed */
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void (*destroy)(struct nf_conn *ct);
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@ -60,6 +61,9 @@ struct nf_conntrack_l4proto {
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/* Print out the private part of the conntrack. */
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int (*print_conntrack)(struct seq_file *s, struct nf_conn *);
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/* Return the array of timeouts for this protocol. */
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unsigned int *(*get_timeouts)(struct net *net);
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/* convert protoinfo to nfnetink attributes */
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int (*to_nlattr)(struct sk_buff *skb, struct nlattr *nla,
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struct nf_conn *ct);
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@ -75,25 +75,31 @@ static int icmp_print_tuple(struct seq_file *s,
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ntohs(tuple->src.u.icmp.id));
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}
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static unsigned int *icmp_get_timeouts(struct net *net)
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{
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return &nf_ct_icmp_timeout;
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}
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/* Returns verdict for packet, or -1 for invalid. */
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static int icmp_packet(struct nf_conn *ct,
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const struct sk_buff *skb,
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unsigned int dataoff,
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enum ip_conntrack_info ctinfo,
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u_int8_t pf,
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unsigned int hooknum)
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unsigned int hooknum,
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unsigned int *timeout)
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{
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/* Do not immediately delete the connection after the first
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successful reply to avoid excessive conntrackd traffic
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and also to handle correctly ICMP echo reply duplicates. */
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nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmp_timeout);
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nf_ct_refresh_acct(ct, ctinfo, skb, *timeout);
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return NF_ACCEPT;
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}
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/* Called when a new connection for this protocol found. */
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static bool icmp_new(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff)
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unsigned int dataoff, unsigned int *timeouts)
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{
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static const u_int8_t valid_new[] = {
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[ICMP_ECHO] = 1,
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@ -298,6 +304,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly =
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.invert_tuple = icmp_invert_tuple,
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.print_tuple = icmp_print_tuple,
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.packet = icmp_packet,
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.get_timeouts = icmp_get_timeouts,
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.new = icmp_new,
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.error = icmp_error,
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.destroy = NULL,
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@ -88,25 +88,31 @@ static int icmpv6_print_tuple(struct seq_file *s,
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ntohs(tuple->src.u.icmp.id));
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}
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static unsigned int *icmpv6_get_timeouts(struct net *net)
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{
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return &nf_ct_icmpv6_timeout;
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}
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/* Returns verdict for packet, or -1 for invalid. */
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static int icmpv6_packet(struct nf_conn *ct,
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const struct sk_buff *skb,
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unsigned int dataoff,
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enum ip_conntrack_info ctinfo,
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u_int8_t pf,
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unsigned int hooknum)
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unsigned int hooknum,
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unsigned int *timeout)
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{
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/* Do not immediately delete the connection after the first
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successful reply to avoid excessive conntrackd traffic
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and also to handle correctly ICMP echo reply duplicates. */
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nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmpv6_timeout);
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nf_ct_refresh_acct(ct, ctinfo, skb, *timeout);
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return NF_ACCEPT;
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}
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/* Called when a new connection for this protocol found. */
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static bool icmpv6_new(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff)
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unsigned int dataoff, unsigned int *timeouts)
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{
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static const u_int8_t valid_new[] = {
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[ICMPV6_ECHO_REQUEST - 128] = 1,
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@ -293,6 +299,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly =
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.invert_tuple = icmpv6_invert_tuple,
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.print_tuple = icmpv6_print_tuple,
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.packet = icmpv6_packet,
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.get_timeouts = icmpv6_get_timeouts,
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.new = icmpv6_new,
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.error = icmpv6_error,
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#if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE)
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@ -763,7 +763,8 @@ init_conntrack(struct net *net, struct nf_conn *tmpl,
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struct nf_conntrack_l3proto *l3proto,
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struct nf_conntrack_l4proto *l4proto,
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struct sk_buff *skb,
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unsigned int dataoff, u32 hash)
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unsigned int dataoff, u32 hash,
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unsigned int *timeouts)
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{
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struct nf_conn *ct;
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struct nf_conn_help *help;
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@ -782,7 +783,7 @@ init_conntrack(struct net *net, struct nf_conn *tmpl,
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if (IS_ERR(ct))
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return (struct nf_conntrack_tuple_hash *)ct;
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if (!l4proto->new(ct, skb, dataoff)) {
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if (!l4proto->new(ct, skb, dataoff, timeouts)) {
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nf_conntrack_free(ct);
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pr_debug("init conntrack: can't track with proto module\n");
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return NULL;
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@ -848,7 +849,8 @@ resolve_normal_ct(struct net *net, struct nf_conn *tmpl,
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struct nf_conntrack_l3proto *l3proto,
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struct nf_conntrack_l4proto *l4proto,
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int *set_reply,
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enum ip_conntrack_info *ctinfo)
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enum ip_conntrack_info *ctinfo,
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unsigned int *timeouts)
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{
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struct nf_conntrack_tuple tuple;
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struct nf_conntrack_tuple_hash *h;
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@ -868,7 +870,7 @@ resolve_normal_ct(struct net *net, struct nf_conn *tmpl,
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h = __nf_conntrack_find_get(net, zone, &tuple, hash);
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if (!h) {
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h = init_conntrack(net, tmpl, &tuple, l3proto, l4proto,
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skb, dataoff, hash);
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skb, dataoff, hash, timeouts);
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if (!h)
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return NULL;
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if (IS_ERR(h))
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@ -909,6 +911,7 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
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enum ip_conntrack_info ctinfo;
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struct nf_conntrack_l3proto *l3proto;
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struct nf_conntrack_l4proto *l4proto;
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unsigned int *timeouts;
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unsigned int dataoff;
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u_int8_t protonum;
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int set_reply = 0;
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@ -955,8 +958,11 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
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goto out;
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}
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timeouts = l4proto->get_timeouts(net);
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ct = resolve_normal_ct(net, tmpl, skb, dataoff, pf, protonum,
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l3proto, l4proto, &set_reply, &ctinfo);
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l3proto, l4proto, &set_reply, &ctinfo,
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timeouts);
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if (!ct) {
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/* Not valid part of a connection */
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NF_CT_STAT_INC_ATOMIC(net, invalid);
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@ -973,7 +979,7 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
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NF_CT_ASSERT(skb->nfct);
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ret = l4proto->packet(ct, skb, dataoff, ctinfo, pf, hooknum);
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ret = l4proto->packet(ct, skb, dataoff, ctinfo, pf, hooknum, timeouts);
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if (ret <= 0) {
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/* Invalid: inverse of the return code tells
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* the netfilter core what to do */
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@ -423,7 +423,7 @@ static bool dccp_invert_tuple(struct nf_conntrack_tuple *inv,
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}
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static bool dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff)
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unsigned int dataoff, unsigned int *timeouts)
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{
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struct net *net = nf_ct_net(ct);
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struct dccp_net *dn;
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@ -472,12 +472,17 @@ static u64 dccp_ack_seq(const struct dccp_hdr *dh)
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ntohl(dhack->dccph_ack_nr_low);
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}
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static unsigned int *dccp_get_timeouts(struct net *net)
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{
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return dccp_pernet(net)->dccp_timeout;
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}
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static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff, enum ip_conntrack_info ctinfo,
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u_int8_t pf, unsigned int hooknum)
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u_int8_t pf, unsigned int hooknum,
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unsigned int *timeouts)
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{
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struct net *net = nf_ct_net(ct);
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struct dccp_net *dn;
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enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
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struct dccp_hdr _dh, *dh;
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u_int8_t type, old_state, new_state;
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if (new_state != old_state)
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nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
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dn = dccp_pernet(net);
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nf_ct_refresh_acct(ct, ctinfo, skb, dn->dccp_timeout[new_state]);
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nf_ct_refresh_acct(ct, ctinfo, skb, timeouts[new_state]);
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return NF_ACCEPT;
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}
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@ -767,6 +771,7 @@ static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = {
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.invert_tuple = dccp_invert_tuple,
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.new = dccp_new,
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.packet = dccp_packet,
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.get_timeouts = dccp_get_timeouts,
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.error = dccp_error,
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.print_tuple = dccp_print_tuple,
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.print_conntrack = dccp_print_conntrack,
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@ -789,6 +794,7 @@ static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = {
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.invert_tuple = dccp_invert_tuple,
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.new = dccp_new,
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.packet = dccp_packet,
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.get_timeouts = dccp_get_timeouts,
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.error = dccp_error,
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.print_tuple = dccp_print_tuple,
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.print_conntrack = dccp_print_conntrack,
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@ -40,21 +40,27 @@ static int generic_print_tuple(struct seq_file *s,
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return 0;
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}
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/* Returns verdict for packet, or -1 for invalid. */
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static int packet(struct nf_conn *ct,
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const struct sk_buff *skb,
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unsigned int dataoff,
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enum ip_conntrack_info ctinfo,
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u_int8_t pf,
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unsigned int hooknum)
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static unsigned int *generic_get_timeouts(struct net *net)
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{
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nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_generic_timeout);
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return &nf_ct_generic_timeout;
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}
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/* Returns verdict for packet, or -1 for invalid. */
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static int generic_packet(struct nf_conn *ct,
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const struct sk_buff *skb,
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unsigned int dataoff,
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enum ip_conntrack_info ctinfo,
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u_int8_t pf,
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unsigned int hooknum,
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unsigned int *timeout)
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{
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nf_ct_refresh_acct(ct, ctinfo, skb, *timeout);
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return NF_ACCEPT;
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}
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/* Called when a new connection for this protocol found. */
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static bool new(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff)
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static bool generic_new(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff, unsigned int *timeouts)
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{
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return true;
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}
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@ -93,8 +99,9 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly =
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.pkt_to_tuple = generic_pkt_to_tuple,
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.invert_tuple = generic_invert_tuple,
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.print_tuple = generic_print_tuple,
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.packet = packet,
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.new = new,
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.packet = generic_packet,
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.get_timeouts = generic_get_timeouts,
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.new = generic_new,
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#ifdef CONFIG_SYSCTL
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.ctl_table_header = &generic_sysctl_header,
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.ctl_table = generic_sysctl_table,
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@ -235,13 +235,19 @@ static int gre_print_conntrack(struct seq_file *s, struct nf_conn *ct)
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(ct->proto.gre.stream_timeout / HZ));
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}
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static unsigned int *gre_get_timeouts(struct net *net)
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{
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return gre_timeouts;
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}
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/* Returns verdict for packet, and may modify conntrack */
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static int gre_packet(struct nf_conn *ct,
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const struct sk_buff *skb,
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unsigned int dataoff,
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enum ip_conntrack_info ctinfo,
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u_int8_t pf,
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unsigned int hooknum)
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unsigned int hooknum,
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unsigned int *timeouts)
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{
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/* If we've seen traffic both ways, this is a GRE connection.
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* Extend timeout. */
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@ -260,15 +266,15 @@ static int gre_packet(struct nf_conn *ct,
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/* Called when a new connection for this protocol found. */
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static bool gre_new(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff)
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unsigned int dataoff, unsigned int *timeouts)
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{
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pr_debug(": ");
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nf_ct_dump_tuple(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
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/* initialize to sane value. Ideally a conntrack helper
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* (e.g. in case of pptp) is increasing them */
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ct->proto.gre.stream_timeout = gre_timeouts[GRE_CT_REPLIED];
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ct->proto.gre.timeout = gre_timeouts[GRE_CT_UNREPLIED];
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ct->proto.gre.stream_timeout = timeouts[GRE_CT_REPLIED];
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ct->proto.gre.timeout = timeouts[GRE_CT_UNREPLIED];
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return true;
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}
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@ -295,6 +301,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 __read_mostly = {
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.invert_tuple = gre_invert_tuple,
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.print_tuple = gre_print_tuple,
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.print_conntrack = gre_print_conntrack,
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.get_timeouts = gre_get_timeouts,
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.packet = gre_packet,
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.new = gre_new,
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.destroy = gre_destroy,
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@ -279,13 +279,19 @@ static int sctp_new_state(enum ip_conntrack_dir dir,
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return sctp_conntracks[dir][i][cur_state];
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}
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static unsigned int *sctp_get_timeouts(struct net *net)
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{
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return sctp_timeouts;
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}
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/* Returns verdict for packet, or -NF_ACCEPT for invalid. */
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static int sctp_packet(struct nf_conn *ct,
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const struct sk_buff *skb,
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unsigned int dataoff,
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enum ip_conntrack_info ctinfo,
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u_int8_t pf,
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unsigned int hooknum)
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unsigned int hooknum,
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unsigned int *timeouts)
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{
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enum sctp_conntrack new_state, old_state;
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enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
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@ -370,7 +376,7 @@ static int sctp_packet(struct nf_conn *ct,
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}
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spin_unlock_bh(&ct->lock);
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nf_ct_refresh_acct(ct, ctinfo, skb, sctp_timeouts[new_state]);
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nf_ct_refresh_acct(ct, ctinfo, skb, timeouts[new_state]);
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if (old_state == SCTP_CONNTRACK_COOKIE_ECHOED &&
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dir == IP_CT_DIR_REPLY &&
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@ -390,7 +396,7 @@ static int sctp_packet(struct nf_conn *ct,
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/* Called when a new connection for this protocol found. */
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static bool sctp_new(struct nf_conn *ct, const struct sk_buff *skb,
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unsigned int dataoff)
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unsigned int dataoff, unsigned int *timeouts)
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{
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enum sctp_conntrack new_state;
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const struct sctphdr *sh;
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@ -664,6 +670,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
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.print_tuple = sctp_print_tuple,
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.print_conntrack = sctp_print_conntrack,
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.packet = sctp_packet,
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.get_timeouts = sctp_get_timeouts,
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.new = sctp_new,
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.me = THIS_MODULE,
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#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
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@ -694,6 +701,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
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.print_tuple = sctp_print_tuple,
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.print_conntrack = sctp_print_conntrack,
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.packet = sctp_packet,
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.get_timeouts = sctp_get_timeouts,
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.new = sctp_new,
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.me = THIS_MODULE,
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#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
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@ -813,13 +813,19 @@ static int tcp_error(struct net *net, struct nf_conn *tmpl,
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return NF_ACCEPT;
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}
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static unsigned int *tcp_get_timeouts(struct net *net)
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{
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return tcp_timeouts;
|
||||
}
|
||||
|
||||
/* Returns verdict for packet, or -1 for invalid. */
|
||||
static int tcp_packet(struct nf_conn *ct,
|
||||
const struct sk_buff *skb,
|
||||
unsigned int dataoff,
|
||||
enum ip_conntrack_info ctinfo,
|
||||
u_int8_t pf,
|
||||
unsigned int hooknum)
|
||||
unsigned int hooknum,
|
||||
unsigned int *timeouts)
|
||||
{
|
||||
struct net *net = nf_ct_net(ct);
|
||||
struct nf_conntrack_tuple *tuple;
|
||||
|
@ -1014,14 +1020,14 @@ static int tcp_packet(struct nf_conn *ct,
|
|||
ct->proto.tcp.seen[dir].flags |= IP_CT_TCP_FLAG_CLOSE_INIT;
|
||||
|
||||
if (ct->proto.tcp.retrans >= nf_ct_tcp_max_retrans &&
|
||||
tcp_timeouts[new_state] > tcp_timeouts[TCP_CONNTRACK_RETRANS])
|
||||
timeout = tcp_timeouts[TCP_CONNTRACK_RETRANS];
|
||||
timeouts[new_state] > timeouts[TCP_CONNTRACK_RETRANS])
|
||||
timeout = timeouts[TCP_CONNTRACK_RETRANS];
|
||||
else if ((ct->proto.tcp.seen[0].flags | ct->proto.tcp.seen[1].flags) &
|
||||
IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED &&
|
||||
tcp_timeouts[new_state] > tcp_timeouts[TCP_CONNTRACK_UNACK])
|
||||
timeout = tcp_timeouts[TCP_CONNTRACK_UNACK];
|
||||
timeouts[new_state] > timeouts[TCP_CONNTRACK_UNACK])
|
||||
timeout = timeouts[TCP_CONNTRACK_UNACK];
|
||||
else
|
||||
timeout = tcp_timeouts[new_state];
|
||||
timeout = timeouts[new_state];
|
||||
spin_unlock_bh(&ct->lock);
|
||||
|
||||
if (new_state != old_state)
|
||||
|
@ -1053,7 +1059,7 @@ static int tcp_packet(struct nf_conn *ct,
|
|||
|
||||
/* Called when a new connection for this protocol found. */
|
||||
static bool tcp_new(struct nf_conn *ct, const struct sk_buff *skb,
|
||||
unsigned int dataoff)
|
||||
unsigned int dataoff, unsigned int *timeouts)
|
||||
{
|
||||
enum tcp_conntrack new_state;
|
||||
const struct tcphdr *th;
|
||||
|
@ -1444,6 +1450,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly =
|
|||
.print_tuple = tcp_print_tuple,
|
||||
.print_conntrack = tcp_print_conntrack,
|
||||
.packet = tcp_packet,
|
||||
.get_timeouts = tcp_get_timeouts,
|
||||
.new = tcp_new,
|
||||
.error = tcp_error,
|
||||
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
|
||||
|
@ -1476,6 +1483,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 __read_mostly =
|
|||
.print_tuple = tcp_print_tuple,
|
||||
.print_conntrack = tcp_print_conntrack,
|
||||
.packet = tcp_packet,
|
||||
.get_timeouts = tcp_get_timeouts,
|
||||
.new = tcp_new,
|
||||
.error = tcp_error,
|
||||
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
|
||||
|
|
|
@ -71,32 +71,38 @@ static int udp_print_tuple(struct seq_file *s,
|
|||
ntohs(tuple->dst.u.udp.port));
|
||||
}
|
||||
|
||||
static unsigned int *udp_get_timeouts(struct net *net)
|
||||
{
|
||||
return udp_timeouts;
|
||||
}
|
||||
|
||||
/* Returns verdict for packet, and may modify conntracktype */
|
||||
static int udp_packet(struct nf_conn *ct,
|
||||
const struct sk_buff *skb,
|
||||
unsigned int dataoff,
|
||||
enum ip_conntrack_info ctinfo,
|
||||
u_int8_t pf,
|
||||
unsigned int hooknum)
|
||||
unsigned int hooknum,
|
||||
unsigned int *timeouts)
|
||||
{
|
||||
/* If we've seen traffic both ways, this is some kind of UDP
|
||||
stream. Extend timeout. */
|
||||
if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
|
||||
nf_ct_refresh_acct(ct, ctinfo, skb,
|
||||
udp_timeouts[UDP_CT_REPLIED]);
|
||||
timeouts[UDP_CT_REPLIED]);
|
||||
/* Also, more likely to be important, and not a probe */
|
||||
if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
|
||||
nf_conntrack_event_cache(IPCT_ASSURED, ct);
|
||||
} else {
|
||||
nf_ct_refresh_acct(ct, ctinfo, skb,
|
||||
udp_timeouts[UDP_CT_UNREPLIED]);
|
||||
timeouts[UDP_CT_UNREPLIED]);
|
||||
}
|
||||
return NF_ACCEPT;
|
||||
}
|
||||
|
||||
/* Called when a new connection for this protocol found. */
|
||||
static bool udp_new(struct nf_conn *ct, const struct sk_buff *skb,
|
||||
unsigned int dataoff)
|
||||
unsigned int dataoff, unsigned int *timeouts)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
@ -196,6 +202,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly =
|
|||
.invert_tuple = udp_invert_tuple,
|
||||
.print_tuple = udp_print_tuple,
|
||||
.packet = udp_packet,
|
||||
.get_timeouts = udp_get_timeouts,
|
||||
.new = udp_new,
|
||||
.error = udp_error,
|
||||
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
|
||||
|
@ -224,6 +231,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 __read_mostly =
|
|||
.invert_tuple = udp_invert_tuple,
|
||||
.print_tuple = udp_print_tuple,
|
||||
.packet = udp_packet,
|
||||
.get_timeouts = udp_get_timeouts,
|
||||
.new = udp_new,
|
||||
.error = udp_error,
|
||||
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
|
||||
|
|
|
@ -68,32 +68,38 @@ static int udplite_print_tuple(struct seq_file *s,
|
|||
ntohs(tuple->dst.u.udp.port));
|
||||
}
|
||||
|
||||
static unsigned int *udplite_get_timeouts(struct net *net)
|
||||
{
|
||||
return udplite_timeouts;
|
||||
}
|
||||
|
||||
/* Returns verdict for packet, and may modify conntracktype */
|
||||
static int udplite_packet(struct nf_conn *ct,
|
||||
const struct sk_buff *skb,
|
||||
unsigned int dataoff,
|
||||
enum ip_conntrack_info ctinfo,
|
||||
u_int8_t pf,
|
||||
unsigned int hooknum)
|
||||
unsigned int hooknum,
|
||||
unsigned int *timeouts)
|
||||
{
|
||||
/* If we've seen traffic both ways, this is some kind of UDP
|
||||
stream. Extend timeout. */
|
||||
if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
|
||||
nf_ct_refresh_acct(ct, ctinfo, skb,
|
||||
udplite_timeouts[UDPLITE_CT_REPLIED]);
|
||||
timeouts[UDPLITE_CT_REPLIED]);
|
||||
/* Also, more likely to be important, and not a probe */
|
||||
if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
|
||||
nf_conntrack_event_cache(IPCT_ASSURED, ct);
|
||||
} else {
|
||||
nf_ct_refresh_acct(ct, ctinfo, skb,
|
||||
udplite_timeouts[UDPLITE_CT_UNREPLIED]);
|
||||
timeouts[UDPLITE_CT_UNREPLIED]);
|
||||
}
|
||||
return NF_ACCEPT;
|
||||
}
|
||||
|
||||
/* Called when a new connection for this protocol found. */
|
||||
static bool udplite_new(struct nf_conn *ct, const struct sk_buff *skb,
|
||||
unsigned int dataoff)
|
||||
unsigned int dataoff, unsigned int *timeouts)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
@ -181,6 +187,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly =
|
|||
.invert_tuple = udplite_invert_tuple,
|
||||
.print_tuple = udplite_print_tuple,
|
||||
.packet = udplite_packet,
|
||||
.get_timeouts = udplite_get_timeouts,
|
||||
.new = udplite_new,
|
||||
.error = udplite_error,
|
||||
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
|
||||
|
@ -205,6 +212,7 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 __read_mostly =
|
|||
.invert_tuple = udplite_invert_tuple,
|
||||
.print_tuple = udplite_print_tuple,
|
||||
.packet = udplite_packet,
|
||||
.get_timeouts = udplite_get_timeouts,
|
||||
.new = udplite_new,
|
||||
.error = udplite_error,
|
||||
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
|
||||
|
|
Loading…
Reference in New Issue