84 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			84 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
| /* Copyright 2021 Google LLC
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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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|       http://www.apache.org/licenses/LICENSE-2.0
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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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| #include "fuzz_header.h"
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| 
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| /* 
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|  * Targets answer_auth
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|  */
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|   static int val213 = 0;
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| void FuzzDhcp(const uint8_t **data2, size_t *size2) {
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|   const uint8_t *data = *data2;
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|   size_t size = *size2;
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|   
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| 
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|   time_t now;
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|   int pxe_fd = 0;
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| 
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|   struct iovec *dhpa = malloc(sizeof(struct iovec));
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|   if (dhpa == NULL) return;
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| 
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|   char *content = malloc(300);
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|   if (content == NULL) {
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|     free(dhpa);
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|     return;
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|   }
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|   
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|   dhpa->iov_base = content;
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|   dhpa->iov_len = 300;
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| 
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|   daemon->dhcp_packet = *dhpa;
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| 
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|   syscall_data = data;
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|   syscall_size = size;
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| 
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|   dhcp6_packet(now);
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| 
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|   free(dhpa);
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|   free(content);
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| }
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| 
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| /*
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|  * Fuzzer entrypoint.
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|  */ 
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| int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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|   daemon = NULL;
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|   if (size < 1) {
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|     return 0;
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|   }
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| 
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|   // Initialize mini garbage collector
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|   gb_init();
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| 
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|   // Get a value we can use to decide which target to hit.
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|   int i = (int)data[0];
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|   data += 1;
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|   size -= 1;
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| 
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|   int succ = init_daemon(&data, &size);
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| 
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|   if (succ == 0) {
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|     cache_init();
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|     blockdata_init();
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| 
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| 		FuzzDhcp(&data, &size);
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| 
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|     cache_start_insert();
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|     fuzz_blockdata_cleanup();
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|   }
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| 
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|   // Free data in mini garbage collector.
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|   gb_cleanup();
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| 
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|   return 0;
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| }
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