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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") \
_ (DROP, "ip4 drop") \
_ (PUNT, "ip4 punt") \
_ (SAME_INTERFACE, "ip4 egrees interface same as ingress") \
\
/* 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") \
/* Errors singalled by ip4-outacl */ \
_ (OUTACL_TABLE_MISS, "output ACL table-miss drops") \
_ (OUTACL_SESSION_DENY, "output ACL session deny drops") \
\
/* Erros from mfib-forward */ \
_ (RPF_FAILURE, "Multicast RPF check failed") \
\
/* Errors signalled by ip4-reassembly */ \
_ (REASS_DUPLICATE_FRAGMENT, "duplicate/overlapping fragments") \
_ (REASS_LIMIT_REACHED, "drops due to concurrent reassemblies limit") \
_ (REASS_TIMEOUT, "fragments dropped due to reassembly timeout")
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:
*/
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