src/vnet/ip/ip6_error.h

   1 /*
   2  * Copyright (c) 2015 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 /*
  16  * ip/ip6_error.h: ip6 fast path errors
  17  *
  18  * Copyright (c) 2008 Eliot Dresselhaus
  19  *
  20  * Permission is hereby granted, free of charge, to any person obtaining
  21  * a copy of this software and associated documentation files (the
  22  * "Software"), to deal in the Software without restriction, including
  23  * without limitation the rights to use, copy, modify, merge, publish,
  24  * distribute, sublicense, and/or sell copies of the Software, and to
  25  * permit persons to whom the Software is furnished to do so, subject to
  26  * the following conditions:
  27  *
  28  * The above copyright notice and this permission notice shall be
  29  * included in all copies or substantial portions of the Software.
  30  *
  31  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  32  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  33  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  34  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  35  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  36  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  37  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  38  */
  39
  40 #ifndef included_ip_ip6_error_h
  41 #define included_ip_ip6_error_h
  42
  43 // clang-format off
  44 #define foreach_ip6_error                                               \
  45   /* Must be first. */                                                  \
  46   _ (NONE, "valid ip6 packets")                                         \
  47                                                                         \
  48   /* Errors signalled by ip6-input */                                   \
  49   _ (TOO_SHORT, "ip6 length < 40 bytes")                                \
  50   _ (BAD_LENGTH, "ip6 length > l2 length")                              \
  51   _ (VERSION, "ip6 version != 6")                                       \
  52   _ (TIME_EXPIRED, "ip6 ttl <= 1")                                      \
  53                                                                         \
  54   /* Errors signalled by ip6-rewrite. */                                \
  55   _ (MTU_EXCEEDED, "ip6 MTU exceeded")                                  \
  56   _ (DST_LOOKUP_MISS, "ip6 destination lookup miss")                    \
  57   _ (SRC_LOOKUP_MISS, "ip6 source lookup miss")                         \
  58   _ (DROP, "ip6 drop")                                                  \
  59   _ (PUNT, "ip6 punt")                                                  \
  60                                                                         \
  61   /* Errors signalled by ip6-local. */                                  \
  62   _ (UNKNOWN_PROTOCOL, "unknown ip protocol")                           \
  63   _ (UDP_CHECKSUM, "bad udp checksum")                                  \
  64   _ (ICMP_CHECKSUM, "bad icmp checksum")                                \
  65   _ (UDP_LENGTH, "inconsistent udp/ip lengths")                         \
  66                                                                         \
  67   /* Errors signalled by udp6-lookup. */                                \
  68   _ (UNKNOWN_UDP_PORT, "no listener for udp port")                      \
  69                                                                         \
  70   /* Spoofed packets in ip6-rewrite-local */                            \
  71   _(SPOOFED_LOCAL_PACKETS, "ip4 spoofed local-address packet drops")    \
  72                                                                         \
  73  /* Erros singalled by ip6-inacl */                                     \
  74   _ (INACL_TABLE_MISS, "input ACL table-miss drops")                    \
  75   _ (INACL_SESSION_DENY, "input ACL session deny drops")                \
  76  /* Erros singalled by ip6-outacl */                                    \
  77   _ (OUTACL_TABLE_MISS, "output ACL table-miss drops")                  \
  78   _ (OUTACL_SESSION_DENY, "output ACL session deny drops")              \
  79                                                                         \
  80   /* Errors from mfib-forward */                                        \
  81   _ (RPF_FAILURE, "Multicast RPF check failed")                         \
  82                                                                         \
  83   /* Errors signalled by ip6-reassembly */                              \
  84   _ (REASS_MISSING_UPPER, "missing-upper layer drops")                  \
  85   _ (REASS_DUPLICATE_FRAGMENT, "duplicate fragments")                   \
  86   _ (REASS_OVERLAPPING_FRAGMENT, "overlapping fragments")               \
  87   _ (REASS_LIMIT_REACHED, "drops due to concurrent reassemblies limit") \
  88   _ (REASS_FRAGMENT_CHAIN_TOO_LONG, "fragment chain too long (drop)")   \
  89   _ (REASS_NO_BUF, "out of buffers (drop)")                             \
  90   _ (REASS_TIMEOUT, "fragments dropped due to reassembly timeout")      \
  91   _ (REASS_INTERNAL_ERROR, "drops due to internal reassembly error")    \
  92   _ (REASS_UNSUPP_IP_PROTO, "unsupported ip protocol")
  93
  94 // clang-format on
  95
  96 typedef enum
  97 {
  98 #define _(sym,str) IP6_ERROR_##sym,
  99   foreach_ip6_error
 100 #undef _
 101     IP6_N_ERROR,
 102 } ip6_error_t;
 103
 104 #endif /* included_ip_ip6_error_h */
 105
 106 /*
 107  * fd.io coding-style-patch-verification: ON
 108  *
 109  * Local Variables:
 110  * eval: (c-set-style "gnu")
 111  * End:
 112  */