udp/session: refactor to support dgram mode
- adds session layer support for datagram based protocols
- updates udp to work in pure connectionless and datagram mode. The
existing connected mode is now 'accessible' for apps as a dummy UDPC,
as in, connected udp, protocol.
- updates udp_echo, echo client, echo server code to work in datagram
mode.
Change-Id: I2960c0d2d246cb166005f545794ec31fe0d546dd
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/session/transport.h b/src/vnet/session/transport.h
index ed9eb02..8340fd8 100644
--- a/src/vnet/session/transport.h
+++ b/src/vnet/session/transport.h
@@ -35,10 +35,10 @@
{
ip46_address_t rmt_ip; /**< Remote IP */
ip46_address_t lcl_ip; /**< Local IP */
- u16 lcl_port; /**< Local port */
u16 rmt_port; /**< Remote port */
- u8 proto; /**< Protocol id */
+ u16 lcl_port; /**< Local port */
u8 is_ip4; /**< Flag if IP4 connection */
+ u8 proto; /**< Protocol id */
u32 fib_index; /**< Network namespace */
};
/*
@@ -88,6 +88,7 @@
TRANSPORT_PROTO_SCTP,
TRANSPORT_PROTO_NONE,
TRANSPORT_PROTO_TLS,
+ TRANSPORT_PROTO_UDPC,
TRANSPORT_N_PROTO
} transport_proto_t;
@@ -99,7 +100,7 @@
_(u32, sw_if_index) /**< interface endpoint is associated with */ \
_(ip46_address_t, ip) /**< ip address */ \
_(u32, fib_index) /**< fib table endpoint is associated with */ \
- _(u8, is_ip4) /**< 1 if ip4 */ \
+ _(u8, is_ip4) /**< set if ip4 */ \
_(u16, port) /**< port in net order */ \
typedef struct _transport_endpoint
@@ -125,18 +126,6 @@
return tep->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
}
-always_inline u8
-transport_is_stream (u8 proto)
-{
- return ((proto == TRANSPORT_PROTO_TCP) || (proto == TRANSPORT_PROTO_SCTP));
-}
-
-always_inline u8
-transport_is_dgram (u8 proto)
-{
- return (proto == TRANSPORT_PROTO_UDP);
-}
-
int transport_alloc_local_port (u8 proto, ip46_address_t * ip);
int transport_alloc_local_endpoint (u8 proto, transport_endpoint_t * rmt,
ip46_address_t * lcl_addr,