diff options
Diffstat (limited to 'net/netfilter/nf_conntrack_proto_tcp.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto_tcp.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index a1edb9c1adee..b5ccf2b4b2e7 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -15,6 +15,7 @@ #include <linux/skbuff.h> #include <linux/ipv6.h> #include <net/ip6_checksum.h> +#include <asm/unaligned.h> #include <net/tcp.h> @@ -25,6 +26,8 @@ #include <net/netfilter/nf_conntrack_l4proto.h> #include <net/netfilter/nf_conntrack_ecache.h> #include <net/netfilter/nf_log.h> +#include <net/netfilter/ipv4/nf_conntrack_ipv4.h> +#include <net/netfilter/ipv6/nf_conntrack_ipv6.h> /* Protects ct->proto.tcp */ static DEFINE_RWLOCK(tcp_lock); @@ -466,7 +469,7 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff, for (i = 0; i < (opsize - TCPOLEN_SACK_BASE); i += TCPOLEN_SACK_PERBLOCK) { - tmp = ntohl(*((__be32 *)(ptr+i)+1)); + tmp = get_unaligned_be32((__be32 *)(ptr+i)+1); if (after(tmp, *sack)) *sack = tmp; @@ -859,7 +862,7 @@ static int tcp_packet(struct nf_conn *ct, */ if (nf_ct_kill(ct)) return -NF_REPEAT; - return -NF_DROP; + return NF_DROP; } /* Fall through */ case TCP_CONNTRACK_IGNORE: @@ -892,7 +895,7 @@ static int tcp_packet(struct nf_conn *ct, nf_log_packet(pf, 0, skb, NULL, NULL, NULL, "nf_ct_tcp: killing out of sync session "); nf_ct_kill(ct); - return -NF_DROP; + return NF_DROP; } ct->proto.tcp.last_index = index; ct->proto.tcp.last_dir = dir; @@ -1181,6 +1184,17 @@ static int nlattr_to_tcp(struct nlattr *cda[], struct nf_conn *ct) return 0; } + +static int tcp_nlattr_size(void) +{ + return nla_total_size(0) /* CTA_PROTOINFO_TCP */ + + nla_policy_len(tcp_nla_policy, CTA_PROTOINFO_TCP_MAX + 1); +} + +static int tcp_nlattr_tuple_size(void) +{ + return nla_policy_len(nf_ct_port_nla_policy, CTA_PROTO_MAX + 1); +} #endif #ifdef CONFIG_SYSCTL @@ -1396,9 +1410,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly = .error = tcp_error, #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) .to_nlattr = tcp_to_nlattr, + .nlattr_size = tcp_nlattr_size, .from_nlattr = nlattr_to_tcp, .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, + .nlattr_tuple_size = tcp_nlattr_tuple_size, .nla_policy = nf_ct_port_nla_policy, #endif #ifdef CONFIG_SYSCTL @@ -1426,9 +1442,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 __read_mostly = .error = tcp_error, #if defined(CONFIG_NF_CT_NETLINK) || defined(CONFIG_NF_CT_NETLINK_MODULE) .to_nlattr = tcp_to_nlattr, + .nlattr_size = tcp_nlattr_size, .from_nlattr = nlattr_to_tcp, .tuple_to_nlattr = nf_ct_port_tuple_to_nlattr, .nlattr_to_tuple = nf_ct_port_nlattr_to_tuple, + .nlattr_tuple_size = tcp_nlattr_tuple_size, .nla_policy = nf_ct_port_nla_policy, #endif #ifdef CONFIG_SYSCTL |