diff options
| 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_dccp.c | |
| parent | b888341c7f33035694f70428d7001d73f0b2a3b1 (diff) | |
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_dccp.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto_dccp.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c index d6dde6dc09e6..8ea33598a0a7 100644 --- a/net/netfilter/nf_conntrack_proto_dccp.c +++ b/net/netfilter/nf_conntrack_proto_dccp.c @@ -423,7 +423,7 @@ static bool dccp_invert_tuple(struct nf_conntrack_tuple *inv, } static bool dccp_new(struct nf_conn *ct, const struct sk_buff *skb, - unsigned int dataoff) + unsigned int dataoff, unsigned int *timeouts) { struct net *net = nf_ct_net(ct); struct dccp_net *dn; @@ -472,12 +472,17 @@ static u64 dccp_ack_seq(const struct dccp_hdr *dh) ntohl(dhack->dccph_ack_nr_low); } +static unsigned int *dccp_get_timeouts(struct net *net) +{ + return dccp_pernet(net)->dccp_timeout; +} + static int dccp_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) + u_int8_t pf, unsigned int hooknum, + unsigned int *timeouts) { struct net *net = nf_ct_net(ct); - struct dccp_net *dn; enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo); struct dccp_hdr _dh, *dh; u_int8_t type, old_state, new_state; @@ -559,8 +564,7 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb, if (new_state != old_state) nf_conntrack_event_cache(IPCT_PROTOINFO, ct); - dn = dccp_pernet(net); - nf_ct_refresh_acct(ct, ctinfo, skb, dn->dccp_timeout[new_state]); + nf_ct_refresh_acct(ct, ctinfo, skb, timeouts[new_state]); return NF_ACCEPT; } @@ -767,6 +771,7 @@ static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = { .invert_tuple = dccp_invert_tuple, .new = dccp_new, .packet = dccp_packet, + .get_timeouts = dccp_get_timeouts, .error = dccp_error, .print_tuple = dccp_print_tuple, .print_conntrack = dccp_print_conntrack, @@ -789,6 +794,7 @@ static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = { .invert_tuple = dccp_invert_tuple, .new = dccp_new, .packet = dccp_packet, + .get_timeouts = dccp_get_timeouts, .error = dccp_error, .print_tuple = dccp_print_tuple, .print_conntrack = dccp_print_conntrack, |