mirror of https://github.com/google/oss-fuzz.git
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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# Copyright 2018 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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*/
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#include "dp-packet.h"
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#include "openvswitch/ofpbuf.h"
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#include "openvswitch/ofp-print.h"
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#include "openvswitch/vlog.h"
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int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
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{
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static bool isInit = false;
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struct ofpbuf b;
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if (size < sizeof(struct ofp_header)) return 0;
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if (!isInit) {
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vlog_set_verbosity("off");
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isInit = true;
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}
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ofpbuf_use_const(&b, data, size);
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for (;;) {
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struct ofp_header *oh;
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size_t length, tail_len;
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void *tail;
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// Check if ofpbuf contains ofp header
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oh = (struct ofp_header *)ofpbuf_at(&b, 0, sizeof *oh);
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if (!oh) break;
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// Check if length is geq than lower bound
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length = ntohs(oh->length);
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if (length < sizeof *oh) break;
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// Check if ofpbuf contains payload
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tail_len = length - sizeof *oh;
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tail = ofpbuf_at(&b, sizeof *oh, tail_len);
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if (!tail) break;
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ofp_print(stdout, ofpbuf_pull(&b, length), length, NULL, NULL, 2);
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}
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ofpbuf_uninit(&b);
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return 0;
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}
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