diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2007-12-17 22:28:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:58:52 -0800 |
| commit | 37fccd8577d38e249dde71512fb38d2f6a4d9d3c (patch) | |
| tree | ede873cf656ad872b94bc88e6530831f4f2dfb01 | |
| parent | 0f417ce989f84cfd5418e3b316064bfbb2708196 (diff) | |
[NETFILTER]: ctnetlink: add support for secmark
This patch adds support for James Morris' connsecmark.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/netfilter/nf_conntrack_common.h | 4 | ||||
| -rw-r--r-- | include/linux/netfilter/nfnetlink_conntrack.h | 1 | ||||
| -rw-r--r-- | net/netfilter/nf_conntrack_netlink.c | 22 | ||||
| -rw-r--r-- | net/netfilter/xt_CONNSECMARK.c | 5 |
4 files changed, 31 insertions, 1 deletions
diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h index 19747e8f71c..bad1eb760f6 100644 --- a/include/linux/netfilter/nf_conntrack_common.h +++ b/include/linux/netfilter/nf_conntrack_common.h @@ -133,6 +133,10 @@ enum ip_conntrack_events /* NAT sequence adjustment */ IPCT_NATSEQADJ_BIT = 13, IPCT_NATSEQADJ = (1 << IPCT_NATSEQADJ_BIT), + + /* Secmark is set */ + IPCT_SECMARK_BIT = 14, + IPCT_SECMARK = (1 << IPCT_SECMARK_BIT), }; enum ip_conntrack_expect_events { diff --git a/include/linux/netfilter/nfnetlink_conntrack.h b/include/linux/netfilter/nfnetlink_conntrack.h index c19d976b1b7..e3e1533aba2 100644 --- a/include/linux/netfilter/nfnetlink_conntrack.h +++ b/include/linux/netfilter/nfnetlink_conntrack.h @@ -39,6 +39,7 @@ enum ctattr_type { CTA_TUPLE_MASTER, CTA_NAT_SEQ_ADJ_ORIG, CTA_NAT_SEQ_ADJ_REPLY, + CTA_SECMARK, __CTA_MAX }; #define CTA_MAX (__CTA_MAX - 1) diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 94027c84be5..d4eedc68cc7 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -254,6 +254,22 @@ nla_put_failure: #define ctnetlink_dump_mark(a, b) (0) #endif +#ifdef CONFIG_NF_CONNTRACK_SECMARK +static inline int +ctnetlink_dump_secmark(struct sk_buff *skb, const struct nf_conn *ct) +{ + __be32 mark = htonl(ct->secmark); + + NLA_PUT(skb, CTA_SECMARK, sizeof(u_int32_t), &mark); + return 0; + +nla_put_failure: + return -1; +} +#else +#define ctnetlink_dump_secmark(a, b) (0) +#endif + #define master_tuple(ct) &(ct->master->tuplehash[IP_CT_DIR_ORIGINAL].tuple) static inline int @@ -392,6 +408,7 @@ ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq, ctnetlink_dump_protoinfo(skb, ct) < 0 || ctnetlink_dump_helpinfo(skb, ct) < 0 || ctnetlink_dump_mark(skb, ct) < 0 || + ctnetlink_dump_secmark(skb, ct) < 0 || ctnetlink_dump_id(skb, ct) < 0 || ctnetlink_dump_use(skb, ct) < 0 || ctnetlink_dump_master(skb, ct) < 0 || @@ -493,6 +510,11 @@ static int ctnetlink_conntrack_event(struct notifier_block *this, && ctnetlink_dump_mark(skb, ct) < 0) goto nla_put_failure; #endif +#ifdef CONFIG_NF_CONNTRACK_SECMARK + if ((events & IPCT_SECMARK || ct->secmark) + && ctnetlink_dump_secmark(skb, ct) < 0) + goto nla_put_failure; +#endif if (events & IPCT_COUNTER_FILLING && (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 || diff --git a/net/netfilter/xt_CONNSECMARK.c b/net/netfilter/xt_CONNSECMARK.c index 2c265e87f39..2333f7e29bc 100644 --- a/net/netfilter/xt_CONNSECMARK.c +++ b/net/netfilter/xt_CONNSECMARK.c @@ -20,6 +20,7 @@ #include <linux/netfilter/x_tables.h> #include <linux/netfilter/xt_CONNSECMARK.h> #include <net/netfilter/nf_conntrack.h> +#include <net/netfilter/nf_conntrack_ecache.h> #define PFX "CONNSECMARK: " @@ -40,8 +41,10 @@ static void secmark_save(const struct sk_buff *skb) enum ip_conntrack_info ctinfo; ct = nf_ct_get(skb, &ctinfo); - if (ct && !ct->secmark) + if (ct && !ct->secmark) { ct->secmark = skb->secmark; + nf_conntrack_event_cache(IPCT_SECMARK, skb); + } } } |