diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2010-10-23 17:35:57 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2011-02-17 00:57:54 +0100 |
| commit | 2217eb4c53a54eabbc09e043209181c483e2eace (patch) | |
| tree | b8f0b8da65e53b562993f6a373fb71826ec0cbf9 /src/conntrack/parse.c | |
| parent | c2ddcf3225edcc13699131820f90b063161ff2ca (diff) | |
conntrack: add timestamp support
This patch adds the connection tracking extension that allows
conntrack timestamping.
This requires a Linux kernel >= 2.6.38.
We have now 65 attributes, we need 96 bits to store what attributes
are set in the objects.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/conntrack/parse.c')
| -rw-r--r-- | src/conntrack/parse.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/conntrack/parse.c b/src/conntrack/parse.c index 841693e..743e8d4 100644 --- a/src/conntrack/parse.c +++ b/src/conntrack/parse.c @@ -453,6 +453,26 @@ int __parse_message_type(const struct nlmsghdr *nlh) return ret; } +static void +__parse_timestamp(const struct nfattr *attr, struct nf_conntrack *ct) +{ + struct nfattr *tb[CTA_TIMESTAMP_MAX]; + + nfnl_parse_nested(tb, CTA_TIMESTAMP_MAX, attr); + if (tb[CTA_TIMESTAMP_START-1]) { + u_int64_t tmp; + memcpy(&tmp, NFA_DATA(tb[CTA_TIMESTAMP_START-1]), sizeof(tmp)); + ct->timestamp.start = __be64_to_cpu(tmp); + set_bit(ATTR_TIMESTAMP_START, ct->set); + } + if (tb[CTA_TIMESTAMP_STOP-1]) { + u_int64_t tmp; + memcpy(&tmp, NFA_DATA(tb[CTA_TIMESTAMP_STOP-1]), sizeof(tmp)); + ct->timestamp.stop = __be64_to_cpu(tmp); + set_bit(ATTR_TIMESTAMP_STOP, ct->set); + } +} + void __parse_conntrack(const struct nlmsghdr *nlh, struct nfattr *cda[], struct nf_conntrack *ct) @@ -538,4 +558,7 @@ void __parse_conntrack(const struct nlmsghdr *nlh, if (cda[CTA_SECCTX-1]) __parse_secctx(cda[CTA_SECCTX-1], ct); + + if (cda[CTA_TIMESTAMP-1]) + __parse_timestamp(cda[CTA_TIMESTAMP-1], ct); } |