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authorFlorin Coras <fcoras@cisco.com>2018-04-09 09:24:52 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2018-04-18 07:23:46 +0000
commit7fb0fe1f6972a7a35146fa9115b866ba29a6fbb7 (patch)
tree46f1236450ae918383bf56204b98a68199d28501 /src/vnet/udp/udp.c
parent684d08c7e5378af5310346e9219a79ef1d901084 (diff)
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>
Diffstat (limited to 'src/vnet/udp/udp.c')
-rw-r--r--src/vnet/udp/udp.c56
1 files changed, 53 insertions, 3 deletions
diff --git a/src/vnet/udp/udp.c b/src/vnet/udp/udp.c
index 3b8b707abe1..947cc1e38e1 100644
--- a/src/vnet/udp/udp.c
+++ b/src/vnet/udp/udp.c
@@ -49,6 +49,7 @@ udp_connection_alloc (u32 thread_index)
uc->c_c_index = uc - um->connections[thread_index];
uc->c_thread_index = thread_index;
uc->c_proto = TRANSPORT_PROTO_UDP;
+ clib_spinlock_init (&uc->rx_lock);
return uc;
}
@@ -92,6 +93,7 @@ udp_session_bind (u32 session_index, transport_endpoint_t * lcl)
listener->c_proto = TRANSPORT_PROTO_UDP;
listener->c_s_index = session_index;
listener->c_fib_index = lcl->fib_index;
+ clib_spinlock_init (&listener->rx_lock);
node_index = lcl->is_ip4 ? udp4_input_node.index : udp6_input_node.index;
udp_register_dst_port (vm, clib_net_to_host_u16 (lcl->port), node_index,
@@ -140,7 +142,7 @@ udp_push_header (transport_connection_t * tc, vlib_buffer_t * b)
vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data;
}
vnet_buffer (b)->sw_if_index[VLIB_RX] = 0;
- vnet_buffer (b)->sw_if_index[VLIB_TX] = ~0;
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = uc->c_fib_index;
b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
return 0;
@@ -210,7 +212,7 @@ format_udp_connection (u8 * s, va_list * args)
if (verbose)
{
if (verbose == 1)
- s = format (s, "%-15s", "-");
+ s = format (s, "%-15s\n", "-");
else
s = format (s, "\n");
}
@@ -322,8 +324,52 @@ const static transport_proto_vft_t udp_proto = {
.format_connection = format_udp_session,
.format_half_open = format_udp_half_open_session,
.format_listener = format_udp_listener_session,
+ .tx_type = TRANSPORT_TX_DGRAM,
+ .service_type = TRANSPORT_SERVICE_CL,
+};
+/* *INDENT-ON* */
+
+
+int
+udpc_connection_open (transport_endpoint_t * rmt)
+{
+ udp_connection_t *uc;
+ u32 uc_index;
+ uc_index = udp_open_connection (rmt);
+ uc = udp_connection_get (uc_index, vlib_get_thread_index ());
+ uc->is_connected = 1;
+ return uc_index;
+}
+
+u32
+udpc_connection_listen (u32 session_index, transport_endpoint_t * lcl)
+{
+ udp_connection_t *listener;
+ u32 li;
+ li = udp_session_bind (session_index, lcl);
+ listener = udp_listener_get (li);
+ listener->is_connected = 1;
+ return li;
+}
+
+/* *INDENT-OFF* */
+const static transport_proto_vft_t udpc_proto = {
+ .bind = udpc_connection_listen,
+ .open = udpc_connection_open,
+ .unbind = udp_session_unbind,
+ .push_header = udp_push_header,
+ .get_connection = udp_session_get,
+ .get_listener = udp_session_get_listener,
+ .get_half_open = udp_half_open_session_get_transport,
+ .close = udp_session_close,
+ .cleanup = udp_session_cleanup,
+ .send_mss = udp_send_mss,
+ .send_space = udp_send_space,
+ .format_connection = format_udp_session,
+ .format_half_open = format_udp_half_open_session,
+ .format_listener = format_udp_listener_session,
.tx_type = TRANSPORT_TX_DEQUEUE,
- .service_type = TRANSPORT_SERVICE_VC,
+ .service_type = TRANSPORT_SERVICE_CL,
};
/* *INDENT-ON* */
@@ -361,6 +407,10 @@ udp_init (vlib_main_t * vm)
FIB_PROTOCOL_IP4, ip4_lookup_node.index);
transport_register_protocol (TRANSPORT_PROTO_UDP, &udp_proto,
FIB_PROTOCOL_IP6, ip6_lookup_node.index);
+ transport_register_protocol (TRANSPORT_PROTO_UDPC, &udpc_proto,
+ FIB_PROTOCOL_IP4, ip4_lookup_node.index);
+ transport_register_protocol (TRANSPORT_PROTO_UDPC, &udpc_proto,
+ FIB_PROTOCOL_IP6, ip6_lookup_node.index);
/*
* Initialize data structures