summaryrefslogtreecommitdiffstats
path: root/utils
diff options
context:
space:
mode:
Diffstat (limited to 'utils')
-rw-r--r--utils/conntrack_master.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/utils/conntrack_master.c b/utils/conntrack_master.c
new file mode 100644
index 0000000..4318942
--- /dev/null
+++ b/utils/conntrack_master.c
@@ -0,0 +1,93 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+#include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
+
+int main()
+{
+ int ret;
+ struct nfct_handle *h;
+ struct nf_conntrack *ct, *master, *expected;
+
+ /* create master conntrack */
+ ct = nfct_new();
+ if (!ct) {
+ perror("nfct_new");
+ return 0;
+ }
+
+ nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+ nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+ nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+ nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+ nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
+ nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
+
+ nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+ nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_LISTEN);
+ nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
+
+ h = nfct_open(CONNTRACK, 0);
+ if (!h) {
+ perror("nfct_open");
+ return -1;
+ }
+
+ ret = nfct_query(h, NFCT_Q_CREATE, ct);
+
+ printf("TEST: create conntrack (%d)(%s)\n", ret, strerror(errno));
+
+ if (ret == -1)
+ exit(EXIT_FAILURE);
+
+ /* setup confirmed conntrack */
+
+ expected = nfct_new();
+ if (!expected) {
+ perror("nfct_new");
+ return 0;
+ }
+
+ nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
+ nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
+ nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
+
+ nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
+ nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(1024));
+ nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(1025));
+
+ nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
+
+ nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_LISTEN);
+ nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100);
+
+ /* my conntrack master is ... */
+
+ master = nfct_new();
+ if (!master) {
+ perror("nfct_new");
+ return 0;
+ }
+
+ nfct_set_attr_u8(ct, ATTR_MASTER_L3PROTO, AF_INET);
+ nfct_set_attr_u32(ct, ATTR_MASTER_IPV4_SRC, inet_addr("1.1.1.1"));
+ nfct_set_attr_u32(ct, ATTR_MASTER_IPV4_DST, inet_addr("2.2.2.2"));
+
+ nfct_set_attr_u8(ct, ATTR_MASTER_L4PROTO, IPPROTO_TCP);
+ nfct_set_attr_u16(ct, ATTR_MASTER_PORT_SRC, htons(20));
+ nfct_set_attr_u16(ct, ATTR_MASTER_PORT_DST, htons(10));
+
+ ret = nfct_query(h, NFCT_Q_CREATE, ct);
+
+ printf("TEST: create confirmed conntrack (%d)(%s)\n",
+ ret, strerror(errno));
+
+ if (ret == -1)
+ exit(EXIT_FAILURE);
+
+ nfct_close(h);
+}