diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-04-26 19:37:03 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-06-26 17:26:30 +0200 |
| commit | 20cd0222c910e96c378e091e64b71d26e48916fe (patch) | |
| tree | 377a770f8d42fb9fcab12cd9e3db7fe8212592f6 /src/conntrack/parse_mnl.c | |
| parent | c69752e3dbf757aac336f4287eca11afef62a85c (diff) | |
conntrack: add nfct_set_attr_l and ATTR_HELPER_INFO
This adds the ATTR_HELPER_INFO that can be used to send binary data
that will be attached to the conntrack. This is useful for the
user-space connection tracking support.
This patch also adds a new interface:
nfct_set_attr_l(attr, type, value, length);
that is used to set the variable length helper information.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/conntrack/parse_mnl.c')
| -rw-r--r-- | src/conntrack/parse_mnl.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/conntrack/parse_mnl.c b/src/conntrack/parse_mnl.c index 86d9c54..93f6681 100644 --- a/src/conntrack/parse_mnl.c +++ b/src/conntrack/parse_mnl.c @@ -678,6 +678,18 @@ nfct_parse_helper(const struct nlattr *attr, struct nf_conntrack *ct) ct->helper_name[NFCT_HELPER_NAME_MAX-1] = '\0'; set_bit(ATTR_HELPER_NAME, ct->head.set); + if (!tb[CTA_HELP_INFO]) + return 0; + + ct->helper_info_len = mnl_attr_get_payload_len(tb[CTA_HELP_INFO]); + ct->helper_info = calloc(1, ct->helper_info_len); + if (ct->helper_info == NULL) + return -1; + + memcpy(ct->helper_info, mnl_attr_get_payload(tb[CTA_HELP_INFO]), + ct->helper_info_len); + set_bit(ATTR_HELPER_INFO, ct->head.set); + return 0; } |