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+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * 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.
+ */
+/*
+ * ip/ip4_error.h: ip4 fast path errors
+ *
+ * Copyright (c) 2008 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef included_ip_ip4_error_h
+#define included_ip_ip4_error_h
+
+#define foreach_ip4_error \
+ /* Must be first. */ \
+ _ (NONE, "valid ip4 packets") \
+ \
+ /* Errors signalled by ip4-input */ \
+ _ (TOO_SHORT, "ip4 length < 20 bytes") \
+ _ (BAD_LENGTH, "ip4 length > l2 length") \
+ _ (BAD_CHECKSUM, "bad ip4 checksum") \
+ _ (VERSION, "ip4 version != 4") \
+ _ (OPTIONS, "ip4 options present") \
+ _ (FRAGMENT_OFFSET_ONE, "ip4 fragment offset == 1") \
+ _ (TIME_EXPIRED, "ip4 ttl <= 1") \
+ \
+ /* Errors signalled by ip4-rewrite. */ \
+ _ (MTU_EXCEEDED, "ip4 MTU exceeded and DF set") \
+ _ (DST_LOOKUP_MISS, "ip4 destination lookup miss") \
+ _ (SRC_LOOKUP_MISS, "ip4 source lookup miss") \
+ _ (ADJACENCY_DROP, "ip4 adjacency drop") \
+ _ (ADJACENCY_PUNT, "ip4 adjacency punt") \
+ \
+ /* Errors signalled by ip4-local. */ \
+ _ (UNKNOWN_PROTOCOL, "unknown ip protocol") \
+ _ (TCP_CHECKSUM, "bad tcp checksum") \
+ _ (UDP_CHECKSUM, "bad udp checksum") \
+ _ (UDP_LENGTH, "inconsistent udp/ip lengths") \
+ \
+ /* Errors signalled by ip4-source-check. */ \
+ _ (UNICAST_SOURCE_CHECK_FAILS, "ip4 unicast source check fails") \
+ \
+ /* Spoofed packets in ip4-rewrite-local */ \
+ _(SPOOFED_LOCAL_PACKETS, "ip4 spoofed local-address packet drops") \
+ \
+ /* Errors singalled by ip4-inacl */ \
+ _ (INACL_TABLE_MISS, "input ACL table-miss drops") \
+ _ (INACL_SESSION_DENY, "input ACL session deny drops")
+
+typedef enum
+{
+#define _(sym,str) IP4_ERROR_##sym,
+ foreach_ip4_error
+#undef _
+ IP4_N_ERROR,
+} ip4_error_t;
+
+#endif /* included_ip_ip4_error_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */