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| author |   Pablo Neira Ayuso <pablo@netfilter.org> | 2012-02-28 18:23:31 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-03-07 17:41:19 +0100 |
| commit | 2c8503f55fbdfbeff4164f133df804cf4d316290 (patch) | |
| tree | fe491bc79fd59aa4b8b99ea63d13e62b6a2ef1cb /net/netfilter/nf_conntrack_proto_generic.c | |
| parent | netfilter: nf_ct_gre: add unsigned int array to define timeouts (diff) | |
| download | linux-dev-2c8503f55fbdfbeff4164f133df804cf4d316290.tar.xz linux-dev-2c8503f55fbdfbeff4164f133df804cf4d316290.zip | |
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>
Diffstat (limited to 'net/netfilter/nf_conntrack_proto_generic.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto_generic.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c index e2091d0c7a2f..0e6c5451db80 100644 --- a/net/netfilter/nf_conntrack_proto_generic.c +++ b/net/netfilter/nf_conntrack_proto_generic.c @@ -40,21 +40,27 @@ static int generic_print_tuple(struct seq_file *s, return 0; } +static unsigned int *generic_get_timeouts(struct net *net) +{ + return &nf_ct_generic_timeout; +} + /* Returns verdict for packet, or -1 for invalid. */ -static int 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) +static int generic_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 *timeout) { - nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_generic_timeout); + nf_ct_refresh_acct(ct, ctinfo, skb, *timeout); return NF_ACCEPT; } /* Called when a new connection for this protocol found. */ -static bool new(struct nf_conn *ct, const struct sk_buff *skb, - unsigned int dataoff) +static bool generic_new(struct nf_conn *ct, const struct sk_buff *skb, + unsigned int dataoff, unsigned int *timeouts) { return true; } @@ -93,8 +99,9 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly = .pkt_to_tuple = generic_pkt_to_tuple, .invert_tuple = generic_invert_tuple, .print_tuple = generic_print_tuple, - .packet = packet, - .new = new, + .packet = generic_packet, + .get_timeouts = generic_get_timeouts, + .new = generic_new, #ifdef CONFIG_SYSCTL .ctl_table_header = &generic_sysctl_header, .ctl_table = generic_sysctl_table, |