Add support for generating IPIP to osmo-pcap-client

This allows the user to change the configuration between either using

a) the classic OsmoPCAP protocol (over TCP with or without TLS)
   which is used when you want to talk to an osmo-pcap-server

b) the (new) IPIP encapsulation, which will simply take the IP
   packet (without Ethernet or pcap header) and transmit it inside IPIP
   to the specified server IP address.  This is useful for gettin
   real-time streaming into wireshark.

Change-Id: I8056fc163ac2f15adcb964d867dd5e51df4e4710

1 files changed, 6 insertions, 0 deletions

diff --git a/include/osmo-pcap/osmo_pcap_client.h b/include/osmo-pcap/osmo_pcap_client.h
index b4dda78..7888dfe 100644
--- a/include/osmo-pcap/osmo_pcap_client.h
+++ b/include/osmo-pcap/osmo_pcap_client.h
@@ -46,6 +46,11 @@ enum {
 	CLIENT_CTR_P_IFDROP,
 };
 
+enum osmo_pcap_protocol {
+	PROTOCOL_OSMOPCAP,
+	PROTOCOL_IPIP,
+};
+
 struct osmo_pcap_client_conn {
 	struct llist_head entry;
 	const char *name;
@@ -55,6 +60,7 @@ struct osmo_pcap_client_conn {
 	char *source_ip;
 	struct osmo_wqueue wqueue;
 	struct osmo_timer_list timer;
+	enum osmo_pcap_protocol protocol;
 
 	/* TLS handling */
 	bool tls_on;