ONOS-7058 Refactored default pipeconfs in new pipelines directory

- Minimal refactoring of P4 programs
- Removed symlinks to BMv2 JSON/P4Info
- Bumped p4c commit (which fixes known parser bug)
- Renamed "default" pipeconf to "basic" (ONOS-6818)

Change-Id: I319f8b142ab22dba9b15457e28cd62d17f78a423
diff --git a/pipelines/basic/src/main/resources/include/parsers.p4 b/pipelines/basic/src/main/resources/include/parsers.p4
new file mode 100644
index 0000000..601de35
--- /dev/null
+++ b/pipelines/basic/src/main/resources/include/parsers.p4
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __PARSERS__
+#define __PARSERS__
+
+#include "headers.p4"
+#include "defines.p4"
+
+parser parser_impl(packet_in packet,
+                  out headers_t hdr,
+                  inout local_metadata_t local_metadata,
+                  inout standard_metadata_t standard_metadata) {
+
+    state start {
+        transition select(standard_metadata.ingress_port) {
+            CPU_PORT: parse_packet_out;
+            default: parse_ethernet;
+        }
+    }
+
+    state parse_packet_out {
+        packet.extract(hdr.packet_out);
+        transition parse_ethernet;
+    }
+
+    state parse_ethernet {
+        packet.extract(hdr.ethernet);
+        transition select(hdr.ethernet.ether_type) {
+            ETH_TYPE_IPV4: parse_ipv4;
+            default: accept;
+        }
+    }
+
+    state parse_ipv4 {
+        packet.extract(hdr.ipv4);
+        transition select(hdr.ipv4.protocol) {
+            IP_PROTO_TCP: parse_tcp;
+            IP_PROTO_UDP: parse_udp;
+            default: accept;
+        }
+    }
+
+    state parse_tcp {
+        packet.extract(hdr.tcp);
+        local_metadata.l4_src_port = hdr.tcp.src_port;
+        local_metadata.l4_dst_port = hdr.tcp.dst_port;
+        transition accept;
+    }
+
+    state parse_udp {
+        packet.extract(hdr.udp);
+        local_metadata.l4_src_port = hdr.udp.src_port;
+        local_metadata.l4_dst_port = hdr.udp.dst_port;
+        transition accept;
+    }
+}
+
+control deparser(packet_out packet, in headers_t hdr) {
+    apply {
+        packet.emit(hdr.packet_in);
+        packet.emit(hdr.ethernet);
+        packet.emit(hdr.ipv4);
+        packet.emit(hdr.tcp);
+        packet.emit(hdr.udp);
+    }
+}
+
+#endif