diff options
Diffstat (limited to 'net/netfilter/nf_conntrack_proto_dccp.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto_dccp.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c index aee0d6bea30..1b816a2ea81 100644 --- a/net/netfilter/nf_conntrack_proto_dccp.c +++ b/net/netfilter/nf_conntrack_proto_dccp.c @@ -25,8 +25,6 @@ #include <net/netfilter/nf_conntrack_ecache.h> #include <net/netfilter/nf_log.h> -static DEFINE_RWLOCK(dccp_lock); - /* Timeouts are based on values from RFC4340: * * - REQUEST: @@ -492,7 +490,7 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb, return NF_ACCEPT; } - write_lock_bh(&dccp_lock); + spin_lock_bh(&ct->lock); role = ct->proto.dccp.role[dir]; old_state = ct->proto.dccp.state; @@ -536,13 +534,13 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb, ct->proto.dccp.last_dir = dir; ct->proto.dccp.last_pkt = type; - write_unlock_bh(&dccp_lock); + spin_unlock_bh(&ct->lock); if (LOG_INVALID(net, IPPROTO_DCCP)) nf_log_packet(pf, 0, skb, NULL, NULL, NULL, "nf_ct_dccp: invalid packet ignored "); return NF_ACCEPT; case CT_DCCP_INVALID: - write_unlock_bh(&dccp_lock); + spin_unlock_bh(&ct->lock); if (LOG_INVALID(net, IPPROTO_DCCP)) nf_log_packet(pf, 0, skb, NULL, NULL, NULL, "nf_ct_dccp: invalid state transition "); @@ -552,7 +550,7 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb, ct->proto.dccp.last_dir = dir; ct->proto.dccp.last_pkt = type; ct->proto.dccp.state = new_state; - write_unlock_bh(&dccp_lock); + spin_unlock_bh(&ct->lock); if (new_state != old_state) nf_conntrack_event_cache(IPCT_PROTOINFO, ct); @@ -621,36 +619,39 @@ static int dccp_print_tuple(struct seq_file *s, ntohs(tuple->dst.u.dccp.port)); } -static int dccp_print_conntrack(struct seq_file *s, const struct nf_conn *ct) +static int dccp_print_conntrack(struct seq_file *s, struct nf_conn *ct) { return seq_printf(s, "%s ", dccp_state_names[ct->proto.dccp.state]); } #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) static int dccp_to_nlattr(struct sk_buff *skb, struct nlattr *nla, - const struct nf_conn *ct) + struct nf_conn *ct) { struct nlattr *nest_parms; - read_lock_bh(&dccp_lock); + spin_lock_bh(&ct->lock); nest_parms = nla_nest_start(skb, CTA_PROTOINFO_DCCP | NLA_F_NESTED); if (!nest_parms) goto nla_put_failure; NLA_PUT_U8(skb, CTA_PROTOINFO_DCCP_STATE, ct->proto.dccp.state); NLA_PUT_U8(skb, CTA_PROTOINFO_DCCP_ROLE, ct->proto.dccp.role[IP_CT_DIR_ORIGINAL]); + NLA_PUT_BE64(skb, CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ, + cpu_to_be64(ct->proto.dccp.handshake_seq)); nla_nest_end(skb, nest_parms); - read_unlock_bh(&dccp_lock); + spin_unlock_bh(&ct->lock); return 0; nla_put_failure: - read_unlock_bh(&dccp_lock); + spin_unlock_bh(&ct->lock); return -1; } static const struct nla_policy dccp_nla_policy[CTA_PROTOINFO_DCCP_MAX + 1] = { [CTA_PROTOINFO_DCCP_STATE] = { .type = NLA_U8 }, [CTA_PROTOINFO_DCCP_ROLE] = { .type = NLA_U8 }, + [CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ] = { .type = NLA_U64 }, }; static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct) @@ -674,7 +675,7 @@ static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct) return -EINVAL; } - write_lock_bh(&dccp_lock); + spin_lock_bh(&ct->lock); ct->proto.dccp.state = nla_get_u8(tb[CTA_PROTOINFO_DCCP_STATE]); if (nla_get_u8(tb[CTA_PROTOINFO_DCCP_ROLE]) == CT_DCCP_ROLE_CLIENT) { ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_CLIENT; @@ -683,7 +684,11 @@ static int nlattr_to_dccp(struct nlattr *cda[], struct nf_conn *ct) ct->proto.dccp.role[IP_CT_DIR_ORIGINAL] = CT_DCCP_ROLE_SERVER; ct->proto.dccp.role[IP_CT_DIR_REPLY] = CT_DCCP_ROLE_CLIENT; } - write_unlock_bh(&dccp_lock); + if (tb[CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ]) { + ct->proto.dccp.handshake_seq = + be64_to_cpu(nla_get_be64(tb[CTA_PROTOINFO_DCCP_HANDSHAKE_SEQ])); + } + spin_unlock_bh(&ct->lock); return 0; } |