src/vnet/ip/ip6_error.h

/*
 * 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/ip6_error.h: ip6 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_ip6_error_h
#define included_ip_ip6_error_h

// clang-format off
#define foreach_ip6_error                                               \
  /* Must be first. */                                                  \
  _ (NONE, "valid ip6 packets")                                         \
                                                                        \
  /* Errors signalled by ip6-input */                                   \
  _ (TOO_SHORT, "ip6 length < 40 bytes")                                \
  _ (BAD_LENGTH, "ip6 length > l2 length")                              \
  _ (VERSION, "ip6 version != 6")                                       \
  _ (TIME_EXPIRED, "ip6 ttl <= 1")                                      \
                                                                        \
  /* Errors signalled by ip6-rewrite. */                                \
  _ (MTU_EXCEEDED, "ip6 MTU exceeded")                                  \
  _ (DST_LOOKUP_MISS, "ip6 destination lookup miss")                    \
  _ (SRC_LOOKUP_MISS, "ip6 source lookup miss")                         \
  _ (DROP, "ip6 drop")                                                  \
  _ (PUNT, "ip6 punt")                                                  \
                                                                        \
  /* Errors signalled by ip6-local. */                                  \
  _ (UNKNOWN_PROTOCOL, "unknown ip protocol")                           \
  _ (UDP_CHECKSUM, "bad udp checksum")                                  \
  _ (ICMP_CHECKSUM, "bad icmp checksum")                                \
  _ (UDP_LENGTH, "inconsistent udp/ip lengths")                         \
                                                                        \
  /* Errors signalled by udp6-lookup. */				\
  _ (UNKNOWN_UDP_PORT, "no listener for udp port")                      \
                                                                        \
  /* Spoofed packets in ip6-rewrite-local */                            \
  _(SPOOFED_LOCAL_PACKETS, "ip4 spoofed local-address packet drops")    \
                                                                        \
 /* Erros singalled by ip6-inacl */                                     \
  _ (INACL_TABLE_MISS, "input ACL table-miss drops")                    \
  _ (INACL_SESSION_DENY, "input ACL session deny drops")                \
 /* Erros singalled by ip6-outacl */                                    \
  _ (OUTACL_TABLE_MISS, "output ACL table-miss drops")                  \
  _ (OUTACL_SESSION_DENY, "output ACL session deny drops")              \
                                                                        \
  /* Errors from mfib-forward */                                        \
  _ (RPF_FAILURE, "Multicast RPF check failed")                         \
                                                                        \
  /* Errors signalled by ip6-reassembly */                              \
  _ (REASS_MISSING_UPPER, "missing-upper layer drops")                  \
  _ (REASS_DUPLICATE_FRAGMENT, "duplicate fragments")                   \
  _ (REASS_OVERLAPPING_FRAGMENT, "overlapping fragments")               \
  _ (REASS_LIMIT_REACHED, "drops due to concurrent reassemblies limit") \
  _ (REASS_FRAGMENT_CHAIN_TOO_LONG, "fragment chain too long (drop)")   \
  _ (REASS_NO_BUF, "out of buffers (drop)")                             \
  _ (REASS_TIMEOUT, "fragments dropped due to reassembly timeout")      \
  _ (REASS_INTERNAL_ERROR, "drops due to internal reassembly error")    \
  _ (REASS_UNSUPP_IP_PROTO, "unsupported ip protocol")

// clang-format on

typedef enum
{
#define _(sym,str) IP6_ERROR_##sym,
  foreach_ip6_error
#undef _
    IP6_N_ERROR,
} ip6_error_t;

#endif /* included_ip_ip6_error_h */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */