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authorPablo Neira Ayuso <pablo@netfilter.org>2010-04-03 13:06:20 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2010-04-03 13:06:20 +0200
commitabcaad6b65ed368c13c353ed71619332f76d9c2a (patch)
tree8c057fef5ffd19475b65dc905d4293244e6f03ad /examples/rtnl-route-dump.c
parentccf40b8b3789193554ae13182c38ba7e69841cce (diff)
check portid of received messages in examples
netlink is not connection-oriented, we have to check the origin of the message. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'examples/rtnl-route-dump.c')
-rw-r--r--examples/rtnl-route-dump.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/examples/rtnl-route-dump.c b/examples/rtnl-route-dump.c
index e8f3a0c..131d344 100644
--- a/examples/rtnl-route-dump.c
+++ b/examples/rtnl-route-dump.c
@@ -55,6 +55,10 @@ static int data_cb(const struct nlmsghdr *nlh, void *data)
int len = mnl_nlmsg_get_len(nlh);
struct nlattr *attr;
+ /* this does not come from the kernel. */
+ if (nlh->nlmsg_pid != 0)
+ return MNL_CB_OK;
+
/* protocol family = AF_INET | AF_INET6 */
printf("family=%u ", rm->rtm_family);