High level conclusions

Fuzzers reach 54.75% code coverage.

Fuzzers reach 85.01% of cyclomatic complexity.

Fuzzers reach 70.49% of all functions.

Fuzzer block_check_fuzzer is blocked:

The runtime code coverage of block_check_fuzzer covers 22.91% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer proxy_fuzzer is blocked:

The runtime code coverage of proxy_fuzzer covers 22.83% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer oscore_decrypt_fuzzer is blocked:

The runtime code coverage of oscore_decrypt_fuzzer covers 23.47% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer persist_fuzzer is blocked:

The runtime code coverage of persist_fuzzer covers 23.27% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer dtls_define_fuzzer is blocked:

The runtime code coverage of dtls_define_fuzzer covers 23.80% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer observe_fuzzer is blocked:

The runtime code coverage of observe_fuzzer covers 24.15% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer async_fuzzer is blocked:

The runtime code coverage of async_fuzzer covers 24.07% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer ws_frame_fuzzer is blocked:

The runtime code coverage of ws_frame_fuzzer covers 10.79% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer cache_key_fuzzer is blocked:

The runtime code coverage of cache_key_fuzzer covers 14.39% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer block_fuzzer is blocked:

The runtime code coverage of block_fuzzer covers 25.96% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer network_message_fuzzer is blocked:

The runtime code coverage of network_message_fuzzer covers 26.72% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Reachability and coverage overview

Functions statically reachable by fuzzers

712 / 1010

Cyclomatic complexity statically reachable by fuzzers

8082 / 9506

Runtime code coverage of functions

553 / 1010

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: split_uri_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	22	33.3%
gold	[1:9]	13	19.6%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	4	6.06%
lawngreen	50+	27	40.9%
All colors	66	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
4	28	coap_dtls_is_supported	call site: 00028	coap_log_impl
4	40	coap_tls_is_supported	call site: 00040	coap_log_impl
4	50	coap_wss_is_supported	call site: 00050	coap_log_impl
2	25	coap_dtls_is_supported	call site: 00025	coap_log_impl
2	33	coap_split_uri_sub	call site: 00033	coap_log_impl
2	37	coap_tls_is_supported	call site: 00037	coap_log_impl
2	46	coap_ws_is_supported	call site: 00046	coap_log_impl
1	6	coap_split_uri_sub	call site: 00006	vsnprintf
1	17	coap_log_impl	call site: 00017	snprintf

Runtime coverage analysis

Covered functions

15

Functions that are reachable but not covered

13

Reachable functions

28

Percentage of reachable functions covered

53.57%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/split_uri_target.c	1
src/coap_uri.c	2
src/coap_debug.c	4
src/coap_time.c	3
src/coap_openssl.c	2
src/coap_strm_posix.c	1
src/coap_ws.c	2

Fuzzer: pdu_parse_udp_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	244	54.4%
gold	[1:9]	17	3.79%
yellow	[10:29]	18	4.01%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	169	37.7%
All colors	448	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
159	247	coap_show_pdu	call site: 00247	coap_option_next
19	410	coap_pdu_encode_header	call site: 00410	coap_log_impl
17	31	coap_pdu_parse2	call site: 00031	coap_log_impl
4	56	coap_pdu_parse_header	call site: 00056	coap_log_impl
4	103	coap_pdu_parse_opt	call site: 00103	coap_log_impl
4	108	coap_pdu_parse_opt	call site: 00108	coap_log_impl
4	194	coap_dtls_is_supported	call site: 00194	coap_log_impl
4	206	coap_tls_is_supported	call site: 00206	coap_log_impl
4	216	coap_wss_is_supported	call site: 00216	coap_log_impl
3	175	coap_get_uri_path	call site: 00175	coap_new_string
2	50	coap_realloc_type	call site: 00050	coap_log_impl
2	156	coap_new_string	call site: 00156	coap_log_impl

Runtime coverage analysis

Covered functions

68

Functions that are reachable but not covered

31

Reachable functions

98

Percentage of reachable functions covered

68.37%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/pdu_parse_udp_target.c	1
src/coap_net.c	2
src/coap_time.c	4
src/coap_prng.c	2
src/coap_mem.c	4
src/coap_openssl.c	5
src/coap_pdu.c	18
src/coap_debug.c	13
src/coap_option.c	12
src/coap_encode.c	3
src/coap_uri.c	9
src/coap_str.c	3
src/coap_strm_posix.c	1
src/coap_ws.c	2
src/coap_block.c	1

Fuzzer: pdu_parse_tcp_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	242	54.0%
gold	[1:9]	14	3.12%
yellow	[10:29]	15	3.34%
greenyellow	[30:49]	4	0.89%
lawngreen	50+	173	38.6%
All colors	448	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
159	247	coap_show_pdu	call site: 00247	coap_option_next
17	31	coap_pdu_parse2	call site: 00031	coap_log_impl
5	407	LLVMFuzzerTestOneInput	call site: 00407	coap_log_impl
4	103	coap_pdu_parse_opt	call site: 00103	coap_log_impl
4	108	coap_pdu_parse_opt	call site: 00108	coap_log_impl
4	194	coap_dtls_is_supported	call site: 00194	coap_log_impl
4	206	coap_tls_is_supported	call site: 00206	coap_log_impl
4	216	coap_wss_is_supported	call site: 00216	coap_log_impl
4	425	coap_pdu_encode_header	call site: 00425	coap_log_impl
3	53	coap_pdu_parse2	call site: 00053	coap_log_impl
3	57	coap_pdu_parse_header	call site: 00057	coap_log_impl
3	175	coap_get_uri_path	call site: 00175	coap_new_string

Runtime coverage analysis

Covered functions

68

Functions that are reachable but not covered

31

Reachable functions

98

Percentage of reachable functions covered

68.37%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/pdu_parse_tcp_target.c	1
src/coap_net.c	2
src/coap_time.c	4
src/coap_prng.c	2
src/coap_mem.c	4
src/coap_openssl.c	5
src/coap_pdu.c	18
src/coap_debug.c	13
src/coap_option.c	12
src/coap_encode.c	3
src/coap_uri.c	9
src/coap_str.c	3
src/coap_strm_posix.c	1
src/coap_ws.c	2
src/coap_block.c	1

Fuzzer: oscore_conf_parse_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	30	17.2%
gold	[1:9]	22	12.6%
yellow	[10:29]	8	4.59%
greenyellow	[30:49]	5	2.87%
lawngreen	50+	109	62.6%
All colors	174	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
16	41	coap_new_string	call site: 00041	coap_log_impl
4	94	coap_delete_bin_const	call site: 00094	coap_log_impl
4	126	coap_parse_oscore_rcp_conf_mem	call site: 00126	coap_log_impl
2	16	coap_cleanup	call site: 00016	ENGINE_finish
1	11	coap_dtls_startup	call site: 00011	OPENSSL_init_crypto
1	14	LLVMFuzzerTestOneInput	call site: 00014	coap_cleanup
1	20	coap_cleanup	call site: 00020	coap_free_type
1	148	coap_parse_oscore_conf_mem	call site: 00148	__assert_fail

Runtime coverage analysis

Covered functions

40

Functions that are reachable but not covered

22

Reachable functions

61

Percentage of reachable functions covered

63.93%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/oscore_conf_parse_target.c	1
src/coap_net.c	2
src/coap_time.c	4
src/coap_prng.c	2
src/coap_mem.c	3
src/coap_openssl.c	3
src/coap_debug.c	6
src/coap_uri.c	1
src/coap_oscore.c	10
src/coap_str.c	6
src/oscore/oscore_cose.c	4
src/oscore/oscore.c	1

Fuzzer: network_message_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4197	84.4%
gold	[1:9]	51	1.02%
yellow	[10:29]	46	0.92%
greenyellow	[30:49]	39	0.78%
lawngreen	50+	639	12.8%
All colors	4972	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
416	2464	setup_pki_ssl	call site: 02464	coap_session_release_lkd
321	3814	coap_dispatch	call site: 03814	coap_oscore_decrypt_pdu
281	1859	coap_session_connected	call site: 01859	coap_handle_event_lkd
260	4220	coap_dispatch	call site: 04220	coap_send_ack_lkd
257	3073	handle_request	call site: 03073	coap_session_max_pdu_size_lkd
255	3454	coap_session_free	call site: 03454	coap_dtls_handle_timeout
252	1385	coap_send_internal	call site: 01385	coap_oscore_new_pdu_encrypted_lkd
220	2239	coap_session_check_connect	call site: 02239	coap_session_release_lkd
214	1063	coap_pdu_encode_header	call site: 01063	coap_proxy_forward_request_lkd
157	714	coap_show_pdu	call site: 00714	coap_session_release_lkd
143	4670	coap_epoll_ctl_mod	call site: 04670	coap_accept_endpoint
83	2945	coap_send_error_lkd	call site: 02945	coap_pdu_duplicate_lkd

Runtime coverage analysis

Covered functions

230

Functions that are reachable but not covered

595

Reachable functions

812

Percentage of reachable functions covered

26.72%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/network_message_target.c	7
src/coap_net.c	74
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	66
src/coap_debug.c	17
src/coap_address.c	16
src/coap_io.c	10
src/coap_session.c	54
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	53
src/coap_resource.c	20
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3

Fuzzer: block_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4252	85.4%
gold	[1:9]	138	2.77%
yellow	[10:29]	19	0.38%
greenyellow	[30:49]	87	1.74%
lawngreen	50+	479	9.62%
All colors	4975	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
603	2276	coap_make_str_const	call site: 02276	coap_session_release_lkd
321	3813	coap_dispatch	call site: 03813	coap_oscore_decrypt_pdu
287	1380	coap_send_internal	call site: 01380	coap_oscore_new_pdu_encrypted_lkd
260	4219	coap_dispatch	call site: 04219	coap_send_ack_lkd
255	3453	coap_session_free	call site: 03453	coap_dtls_handle_timeout
253	4567	coap_handle_dgram	call site: 04567	coap_handle_event_lkd
193	1053	coap_pdu_encode_header	call site: 01053	coap_proxy_forward_request_lkd
157	712	coap_show_pdu	call site: 00712	coap_session_release_lkd
126	2013	coap_add_data_large_internal	call site: 02013	coap_add_data_large_request_lkd
123	3195	coap_handle_request_send_block	call site: 03195	coap_pdu_duplicate_lkd
81	3111	coap_handle_request_put_block	call site: 03111	request_missing_blocks
72	3371	handle_request	call site: 03371	coap_resource_release_lkd

Runtime coverage analysis

Covered functions

221

Functions that are reachable but not covered

596

Reachable functions

805

Percentage of reachable functions covered

25.96%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/block_target.c	3
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	17
src/coap_io.c	10
src/coap_session.c	55
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	58
src/coap_resource.c	25
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3
src/coap_event.c	1
tests/oss-fuzz/coap_fuzz_helper.c	2

Fuzzer: cache_key_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4581	93.2%
gold	[1:9]	43	0.87%
yellow	[10:29]	17	0.34%
greenyellow	[30:49]	229	4.65%
lawngreen	50+	45	0.91%
All colors	4915	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
987	3754	coap_pdu_parse_opt	call site: 03754	coap_handle_event_lkd
653	2778	coap_cache_derive_key_w_ignore	call site: 02778	coap_cancel_observe_lkd
539	2226	coap_session_check_connect	call site: 02226	coap_session_release_lkd
385	1329	coap_check_dots	call site: 01329	coap_oscore_new_pdu_encrypted_lkd
318	1009	coap_socket_connect_udp	call site: 01009	coap_session_reestablished
314	614	coap_pdu_resize	call site: 00614	coap_session_release_lkd
264	3441	coap_session_free	call site: 03441	coap_dtls_handle_timeout
223	1904	coap_digest_free	call site: 01904	coap_handle_event_lkd
128	1715	coap_delete_str_const	call site: 01715	coap_cancel_session_messages
87	429	coap_option_next	call site: 00429	coap_split_proxy_uri
70	99	coap_dtls_new_context	call site: 00099	coap_session_str
69	250	coap_dtls_free_context	call site: 00250	coap_new_endpoint_lkd

Runtime coverage analysis

Covered functions

117

Functions that are reachable but not covered

678

Reachable functions

792

Percentage of reachable functions covered

14.39%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/cache_key_target.c	1
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	15
src/coap_io.c	10
src/coap_session.c	54
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	11
src/coap_block.c	53
src/coap_resource.c	20
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3

Fuzzer: ws_frame_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4796	94.7%
gold	[1:9]	49	0.96%
yellow	[10:29]	205	4.04%
greenyellow	[30:49]	3	0.05%
lawngreen	50+	9	0.17%
All colors	5062	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1367	3441	coap_session_free	call site: 03441	coap_dtls_handle_timeout
1205	2226	coap_session_check_connect	call site: 02226	coap_session_release_lkd
677	1009	coap_socket_connect_udp	call site: 01009	coap_session_reestablished
389	539	coap_session_free	call site: 00539	coap_delete_proxy_subscriber
281	1846	coap_session_connected	call site: 01846	coap_handle_event_lkd
135	386	coap_handle_event_lkd	call site: 00386	coap_proxy_remove_association
121	1722	coap_session_disconnected_lkd	call site: 01722	coap_delete_node_lkd
70	99	coap_dtls_new_context	call site: 00099	coap_session_str
69	250	coap_dtls_free_context	call site: 00250	coap_new_endpoint_lkd
46	328	coap_socket_dgrm_close	call site: 00328	coap_netif_strm_listen
44	4894	coap_ws_rd_http_header_client	call site: 04894	coap_ws_build_key_hash
41	2176	coap_session_create_client	call site: 02176	coap_netif_strm_connect1

Runtime coverage analysis

Covered functions

93

Functions that are reachable but not covered

719

Reachable functions

806

Percentage of reachable functions covered

10.79%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/ws_frame_target.c	4
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	67
src/coap_debug.c	15
src/coap_io.c	10
src/coap_session.c	53
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	15
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	34
src/coap_cache.c	5
src/coap_block.c	53
src/coap_resource.c	20
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3
src/coap_event.c	1

Fuzzer: async_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4383	87.5%
gold	[1:9]	83	1.65%
yellow	[10:29]	361	7.21%
greenyellow	[30:49]	46	0.91%
lawngreen	50+	131	2.61%
All colors	5004	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
603	2276	coap_make_str_const	call site: 02276	coap_session_release_lkd
321	3813	coap_dispatch	call site: 03813	coap_oscore_decrypt_pdu
281	1858	coap_session_connected	call site: 01858	coap_handle_event_lkd
260	4219	coap_dispatch	call site: 04219	coap_send_ack_lkd
259	1053	coap_pdu_encode_header	call site: 01053	coap_proxy_forward_request_lkd
255	3453	coap_session_free	call site: 03453	coap_dtls_handle_timeout
253	4567	coap_handle_dgram	call site: 04567	coap_handle_event_lkd
232	3088	handle_request	call site: 03088	coap_handle_request_put_block
214	1380	coap_send_internal	call site: 01380	coap_oscore_new_pdu_encrypted_lkd
157	712	coap_show_pdu	call site: 00712	coap_session_release_lkd
70	111	coap_dtls_new_context	call site: 00111	coap_session_str
70	1597	coap_pdu_duplicate_lkd	call site: 01597	oscore_new_association

Runtime coverage analysis

Covered functions

202

Functions that are reachable but not covered

615

Reachable functions

810

Percentage of reachable functions covered

24.07%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/async_target.c	3
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	17
src/coap_io.c	10
src/coap_session.c	55
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	53
src/coap_resource.c	24
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	15
src/coap_subscribe.c	3
src/coap_event.c	1
tests/oss-fuzz/coap_fuzz_helper.c	2

Fuzzer: observe_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4312	86.9%
gold	[1:9]	59	1.19%
yellow	[10:29]	285	5.74%
greenyellow	[30:49]	15	0.30%
lawngreen	50+	286	5.76%
All colors	4957	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
501	2276	coap_make_str_const	call site: 02276	coap_session_release_lkd
352	3813	coap_dispatch	call site: 03813	coap_oscore_decrypt_pdu
341	4218	coap_dispatch	call site: 04218	handle_response
259	1053	coap_pdu_encode_header	call site: 01053	coap_proxy_forward_request_lkd
255	3453	coap_session_free	call site: 03453	coap_dtls_handle_timeout
253	4567	coap_handle_dgram	call site: 04567	coap_handle_event_lkd
223	1916	coap_digest_free	call site: 01916	coap_handle_event_lkd
214	1380	coap_send_internal	call site: 01380	coap_oscore_new_pdu_encrypted_lkd
168	3089	handle_request	call site: 03089	coap_handle_request_put_block
148	712	coap_show_pdu	call site: 00712	coap_option_next
89	2790	coap_cache_derive_key_w_ignore	call site: 02790	coap_cancel_observe_lkd
72	3371	handle_request	call site: 03371	coap_resource_release_lkd

Runtime coverage analysis

Covered functions

200

Functions that are reachable but not covered

606

Reachable functions

799

Percentage of reachable functions covered

24.16%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/observe_target.c	3
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	17
src/coap_io.c	10
src/coap_session.c	54
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	53
src/coap_resource.c	25
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3
src/coap_event.c	1
tests/oss-fuzz/coap_fuzz_helper.c	2

Fuzzer: pdu_parse_ws_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	245	54.6%
gold	[1:9]	17	3.79%
yellow	[10:29]	12	2.67%
greenyellow	[30:49]	4	0.89%
lawngreen	50+	170	37.9%
All colors	448	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
159	247	coap_show_pdu	call site: 00247	coap_option_next
17	31	coap_pdu_parse2	call site: 00031	coap_log_impl
13	416	coap_pdu_encode_header	call site: 00416	coap_log_impl
5	407	LLVMFuzzerTestOneInput	call site: 00407	coap_log_impl
4	53	coap_pdu_parse2	call site: 00053	coap_log_impl
4	103	coap_pdu_parse_opt	call site: 00103	coap_log_impl
4	108	coap_pdu_parse_opt	call site: 00108	coap_log_impl
4	194	coap_dtls_is_supported	call site: 00194	coap_log_impl
4	206	coap_tls_is_supported	call site: 00206	coap_log_impl
4	216	coap_wss_is_supported	call site: 00216	coap_log_impl
3	175	coap_get_uri_path	call site: 00175	coap_new_string
2	50	coap_realloc_type	call site: 00050	coap_log_impl

Runtime coverage analysis

Covered functions

68

Functions that are reachable but not covered

31

Reachable functions

98

Percentage of reachable functions covered

68.37%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/pdu_parse_ws_target.c	1
src/coap_net.c	2
src/coap_time.c	4
src/coap_prng.c	2
src/coap_mem.c	4
src/coap_openssl.c	5
src/coap_pdu.c	18
src/coap_debug.c	13
src/coap_option.c	12
src/coap_encode.c	3
src/coap_uri.c	9
src/coap_str.c	3
src/coap_strm_posix.c	1
src/coap_ws.c	2
src/coap_block.c	1

Fuzzer: uri_extended_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	83	38.0%
gold	[1:9]	5	2.29%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	6	2.75%
lawngreen	50+	124	56.8%
All colors	218	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
15	186	coap_uri_into_optlist_abbrev	call site: 00186	coap_new_optlist
14	20	coap_split_uri_sub	call site: 00020	print_timestamp
12	91	coap_opt_parse	call site: 00091	coap_log_impl
6	136	LLVMFuzzerTestOneInput	call site: 00136	coap_path_into_optlist_abbrev
5	147	coap_new_optlist	call site: 00147	coap_insert_optlist
4	41	coap_dtls_is_supported	call site: 00041	coap_log_impl
4	53	coap_tls_is_supported	call site: 00053	coap_log_impl
4	63	coap_wss_is_supported	call site: 00063	coap_log_impl
4	120	coap_opt_setheader	call site: 00120	coap_log_impl
2	38	coap_dtls_is_supported	call site: 00038	coap_log_impl
2	46	coap_split_uri_sub	call site: 00046	coap_log_impl
2	50	coap_tls_is_supported	call site: 00050	coap_log_impl

Runtime coverage analysis

Covered functions

58

Functions that are reachable but not covered

25

Reachable functions

82

Percentage of reachable functions covered

69.51%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/uri_extended_target.c	1
src/coap_net.c	2
src/coap_time.c	4
src/coap_prng.c	2
src/coap_mem.c	3
src/coap_openssl.c	5
src/coap_debug.c	7
src/coap_uri.c	26
src/coap_strm_posix.c	1
src/coap_ws.c	2
src/coap_option.c	7
src/coap_encode.c	1
src/coap_pdu.c	1
./include/coap3/coap_uri.h	1

Fuzzer: get_asn1_tag_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	17	53.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	15	46.8%
All colors	32	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
17	9	coap_new_string	call site: 00009	coap_log_impl

Runtime coverage analysis

Covered functions

10

Functions that are reachable but not covered

15

Reachable functions

25

Percentage of reachable functions covered

40.0%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/get_asn1_tag_target.c	1
src/coap_asn1.c	4
src/coap_str.c	3
src/coap_mem.c	2
src/coap_debug.c	4
src/coap_time.c	3

Fuzzer: dtls_define_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	15	25.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	45	75.0%
All colors	60	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
15	10	coap_dtls_define_issue	call site: 00010	print_timestamp

Runtime coverage analysis

Covered functions

5

Functions that are reachable but not covered

16

Reachable functions

21

Percentage of reachable functions covered

23.81%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/dtls_define_target.c	1
src/coap_debug.c	5
src/coap_dtls.c	3
src/coap_time.c	3

Fuzzer: persist_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4495	88.0%
gold	[1:9]	4	0.07%
yellow	[10:29]	2	0.03%
greenyellow	[30:49]	6	0.11%
lawngreen	50+	598	11.7%
All colors	5105	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
987	3773	coap_pdu_parse_opt	call site: 03773	coap_handle_event_lkd
501	2283	coap_make_str_const	call site: 02283	coap_session_release_lkd
264	3460	coap_session_free	call site: 03460	coap_dtls_handle_timeout
223	1923	coap_digest_free	call site: 01923	coap_handle_event_lkd
215	2797	coap_cache_derive_key_w_ignore	call site: 02797	coap_cancel_observe_lkd
214	1387	coap_send_internal	call site: 01387	coap_oscore_new_pdu_encrypted_lkd
197	3073	coap_get_resource_from_uri_path_lkd	call site: 03073	coap_session_max_pdu_size_lkd
169	1060	coap_pdu_encode_header	call site: 01060	coap_proxy_forward_request_lkd
148	719	coap_show_pdu	call site: 00719	coap_option_next
136	3314	coap_touch_observer	call site: 03314	coap_delete_observer_request
110	1236	coap_new_bin_const	call site: 01236	coap_send_internal
77	1785	coap_send_internal	call site: 01785	coap_io_process_lkd

Runtime coverage analysis

Covered functions

202

Functions that are reachable but not covered

633

Reachable functions

825

Percentage of reachable functions covered

23.27%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/persist_target.c	5
src/coap_subscribe.c	15
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	16
src/coap_io.c	10
src/coap_session.c	54
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	53
src/coap_resource.c	29
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	13
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4

Fuzzer: oscore_cbor_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	19	28.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	47	71.2%
All colors	66	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
14	40	oscore_cbor_elem_contained	call site: 00040	print_timestamp
2	16	coap_cleanup	call site: 00016	ENGINE_finish
1	11	coap_dtls_startup	call site: 00011	OPENSSL_init_crypto
1	14	LLVMFuzzerTestOneInput	call site: 00014	coap_cleanup
1	20	coap_cleanup	call site: 00020	coap_free_type

Runtime coverage analysis

Covered functions

31

Functions that are reachable but not covered

15

Reachable functions

45

Percentage of reachable functions covered

66.67%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/oscore_cbor_target.c	1
src/coap_net.c	2
src/coap_time.c	4
src/coap_prng.c	2
src/coap_mem.c	3
src/coap_openssl.c	3
src/coap_debug.c	6
src/coap_uri.c	1
src/oscore/oscore_cbor.c	12

Fuzzer: oscore_decrypt_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4522	90.0%
gold	[1:9]	122	2.42%
yellow	[10:29]	311	6.19%
greenyellow	[30:49]	1	0.01%
lawngreen	50+	66	1.31%
All colors	5022	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1070	2482	oscore_context_release_recipients	call site: 02482	coap_session_release_lkd
697	4232	coap_oscore_decrypt_pdu	call site: 04232	coap_delete_node_lkd
368	3562	coap_session_free	call site: 03562	coap_dtls_handle_timeout
281	1978	coap_session_connected	call site: 01978	coap_handle_event_lkd
257	1175	coap_pdu_encode_header	call site: 01175	coap_proxy_forward_request_lkd
228	834	coap_show_pdu	call site: 00834	coap_session_release_lkd
91	4139	coap_oscore_decrypt_pdu	call site: 04139	coap_handle_event_lkd
82	570	coap_option_filter_get	call site: 00570	coap_split_proxy_uri
70	85	coap_delete_bin_const	call site: 00085	coap_parse_oscore_rcp_conf_mem
70	240	coap_dtls_new_context	call site: 00240	coap_session_str
67	391	coap_dtls_free_context	call site: 00391	coap_new_endpoint_lkd
62	1437	coap_add_data_after	call site: 01437	coap_rebuild_pdu_for_proxy

Runtime coverage analysis

Covered functions

195

Functions that are reachable but not covered

613

Reachable functions

801

Percentage of reachable functions covered

23.47%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/oscore_decrypt_target.c	1
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	17
src/coap_oscore.c	28
src/coap_str.c	10
src/coap_io.c	10
src/coap_session.c	54
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	53
src/coap_resource.c	20
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3

Fuzzer: proxy_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4434	89.5%
gold	[1:9]	98	1.98%
yellow	[10:29]	93	1.87%
greenyellow	[30:49]	165	3.33%
lawngreen	50+	159	3.21%
All colors	4949	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1367	3454	coap_session_free	call site: 03454	coap_dtls_handle_timeout
421	3023	coap_free_resource	call site: 03023	coap_check_async
389	2380	coap_proxy_get_ongoing_session	call site: 02380	coap_new_client_session_oscore_pki3_lkd
214	1381	coap_send_internal	call site: 01381	coap_oscore_new_pdu_encrypted_lkd
157	713	coap_show_pdu	call site: 00713	coap_session_release_lkd
143	2870	coap_proxy_forward_request_lkd	call site: 02870	coap_proxy_call_response_handler
140	2239	coap_session_check_connect	call site: 02239	coap_session_release_lkd
114	1899	coap_add_data_large_internal	call site: 01899	coap_handle_event_lkd
97	2014	coap_add_data_large_internal	call site: 02014	coap_add_data_large_request_lkd
83	1230	coap_new_bin_const	call site: 01230	coap_send_internal
70	112	coap_dtls_new_context	call site: 00112	coap_session_str
69	263	coap_dtls_free_context	call site: 00263	coap_new_endpoint_lkd

Runtime coverage analysis

Covered functions

189

Functions that are reachable but not covered

615

Reachable functions

797

Percentage of reachable functions covered

22.84%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/proxy_target.c	4
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	17
src/coap_io.c	10
src/coap_session.c	54
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	4
src/coap_proxy.c	23
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	53
src/coap_resource.c	23
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3
src/coap_event.c	1

Fuzzer: block_check_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	4471	89.1%
gold	[1:9]	8	0.15%
yellow	[10:29]	379	7.55%
greenyellow	[30:49]	52	1.03%
lawngreen	50+	107	2.13%
All colors	5017	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
1227	3572	coap_io_do_epoll_lkd	call site: 03572	coap_read_endpoint
692	2277	coap_make_str_const	call site: 02277	coap_session_release_lkd
376	1341	coap_pdu_parse_opt_base	call site: 01341	coap_oscore_new_pdu_encrypted_lkd
201	1022	coap_socket_connect_udp	call site: 01022	coap_session_reestablished
181	3067	coap_get_resource_from_uri_path_lkd	call site: 03067	coap_session_max_pdu_size_lkd
161	713	coap_show_pdu	call site: 00713	coap_session_release_lkd
130	3249	coap_add_block_b_data	call site: 03249	coap_send_internal
89	2051	coap_add_block	call site: 02051	coap_send_internal
72	1772	coap_add_option	call site: 01772	coap_send_internal
70	112	coap_dtls_new_context	call site: 00112	coap_session_str
66	461	coap_new_string	call site: 00461	coap_split_proxy_uri
57	884	coap_find_lg_xmit_response	call site: 00884	coap_delete_observer

Runtime coverage analysis

Covered functions

187

Functions that are reachable but not covered

619

Reachable functions

803

Percentage of reachable functions covered

22.91%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
tests/oss-fuzz/block_check_target.c	2
src/coap_net.c	60
src/coap_time.c	5
src/coap_prng.c	2
src/coap_mem.c	5
src/coap_openssl.c	65
src/coap_debug.c	17
src/coap_io.c	10
src/coap_session.c	55
src/coap_address.c	16
src/coap_netif.c	11
src/coap_strm_posix.c	6
src/coap_ws.c	2
src/coap_dgrm_posix.c	5
src/coap_io_posix.c	5
src/coap_proxy.c	22
src/coap_uri.c	20
src/coap_option.c	21
src/coap_encode.c	6
src/coap_str.c	10
src/coap_pdu.c	35
src/coap_cache.c	5
src/coap_block.c	60
src/coap_resource.c	23
./include/coap3/coap_pdu_internal.h	1
./include/coap3/coap_resource_internal.h	1
src/coap_oscore.c	19
./include/coap3/coap_uri.h	1
src/oscore/oscore_cose.c	19
src/oscore/oscore_context.c	27
src/oscore/oscore.c	8
src/oscore/oscore_cbor.c	11
./include/coap3/coap_block_internal.h	6
src/oscore/oscore_crypto.c	4
/usr/include/openssl/ssl.h	3
src/coap_dtls.c	5
/usr/include/openssl/x509v3.h	3
src/coap_async.c	4
src/coap_subscribe.c	3
src/coap_event.c	1

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name	Functions filename	Arg count	Args	Function depth	hitcount	instr count	bb count	cyclomatic complexity	Reachable functions	Incoming references	total cyclomatic complexity	Unreached complexity
hnd_get_wellknown_lkd	/src/libcoap/src/coap_net.c	5	['N/A', 'N/A', 'N/A', 'N/A', 'N/A']	64	0	304	50	16	690	0	7093	109
coap_netif_dgrm_write	/src/libcoap/src/coap_netif.c	3	['N/A', 'N/A', 'size_t']	8	0	179	33	10	67	0	336	72
coap_tls_engine_configure	/src/libcoap/src/coap_openssl.c	1	['N/A']	6	0	575	124	34	32	0	121	52
coap_endpoint_join_mcast_group_intf	/src/libcoap/src/coap_net.c	3	['N/A', 'N/A', 'N/A']	6	0	52	9	4	37	0	133	42
coap_op_resource_deleted	/src/libcoap/src/coap_subscribe.c	3	['N/A', 'N/A', 'N/A']	6	0	252	40	16	37	0	129	40
coap_session_set_type_server	/src/libcoap/src/coap_session.c	1	['N/A']	73	0	18	3	2	686	0	7020	36

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

733 / 1010

Cyclomatic complexity statically reachable by fuzzers

8425 / 9506

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

tests/oss-fuzz/split_uri_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_dtls_is_supported', 'coap_tls_is_supported', 'coap_wss_is_supported', 'coap_split_uri_sub', 'coap_ws_is_supported', 'coap_log_impl']

tests/oss-fuzz/pdu_parse_udp_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_show_pdu', 'coap_pdu_encode_header', 'coap_pdu_parse2', 'coap_pdu_parse_header', 'coap_pdu_parse_opt', 'coap_dtls_is_supported', 'coap_tls_is_supported', 'coap_wss_is_supported', 'coap_get_uri_path']

tests/oss-fuzz/pdu_parse_tcp_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_show_pdu', 'coap_pdu_parse2', 'LLVMFuzzerTestOneInput', 'coap_pdu_parse_opt', 'coap_dtls_is_supported', 'coap_tls_is_supported', 'coap_wss_is_supported', 'coap_pdu_encode_header']

tests/oss-fuzz/oscore_conf_parse_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_new_string', 'coap_delete_bin_const', 'coap_parse_oscore_rcp_conf_mem', 'coap_cleanup', 'coap_dtls_startup', 'LLVMFuzzerTestOneInput', 'coap_parse_oscore_conf_mem']

tests/oss-fuzz/network_message_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['setup_pki_ssl', 'coap_dispatch', 'coap_session_connected', 'handle_request', 'coap_session_free', 'coap_send_internal', 'coap_session_check_connect', 'coap_pdu_encode_header', 'coap_show_pdu']

tests/oss-fuzz/block_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_make_str_const', 'coap_dispatch', 'coap_send_internal', 'coap_session_free', 'coap_handle_dgram', 'coap_pdu_encode_header', 'coap_show_pdu', 'coap_add_data_large_internal', 'coap_handle_request_send_block']

tests/oss-fuzz/cache_key_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_pdu_parse_opt', 'coap_cache_derive_key_w_ignore', 'coap_session_check_connect', 'coap_check_dots', 'coap_socket_connect_udp', 'coap_pdu_resize', 'coap_session_free', 'coap_digest_free', 'coap_delete_str_const', 'coap_option_next']

tests/oss-fuzz/ws_frame_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_session_free', 'coap_session_check_connect', 'coap_socket_connect_udp', 'coap_session_connected', 'coap_handle_event_lkd', 'coap_session_disconnected_lkd', 'coap_dtls_new_context', 'coap_dtls_free_context', 'coap_socket_dgrm_close']

tests/oss-fuzz/async_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_make_str_const', 'coap_dispatch', 'coap_session_connected', 'coap_pdu_encode_header', 'coap_session_free', 'coap_handle_dgram', 'handle_request', 'coap_send_internal', 'coap_show_pdu']

tests/oss-fuzz/observe_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_make_str_const', 'coap_dispatch', 'coap_pdu_encode_header', 'coap_session_free', 'coap_handle_dgram', 'coap_digest_free', 'coap_send_internal', 'handle_request', 'coap_show_pdu']

tests/oss-fuzz/pdu_parse_ws_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_show_pdu', 'coap_pdu_parse2', 'coap_pdu_encode_header', 'LLVMFuzzerTestOneInput', 'coap_pdu_parse_opt', 'coap_dtls_is_supported', 'coap_tls_is_supported', 'coap_wss_is_supported']

tests/oss-fuzz/uri_extended_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_uri_into_optlist_abbrev', 'coap_split_uri_sub', 'coap_opt_parse', 'LLVMFuzzerTestOneInput', 'coap_new_optlist', 'coap_dtls_is_supported', 'coap_tls_is_supported', 'coap_wss_is_supported', 'coap_opt_setheader']

tests/oss-fuzz/get_asn1_tag_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_new_string']

tests/oss-fuzz/dtls_define_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_dtls_define_issue']

tests/oss-fuzz/persist_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_pdu_parse_opt', 'coap_make_str_const', 'coap_session_free', 'coap_digest_free', 'coap_cache_derive_key_w_ignore', 'coap_send_internal', 'coap_get_resource_from_uri_path_lkd', 'coap_pdu_encode_header', 'coap_show_pdu', 'coap_touch_observer']

tests/oss-fuzz/oscore_cbor_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['oscore_cbor_elem_contained', 'coap_cleanup', 'coap_dtls_startup', 'LLVMFuzzerTestOneInput']

tests/oss-fuzz/oscore_decrypt_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['oscore_context_release_recipients', 'coap_oscore_decrypt_pdu', 'coap_session_free', 'coap_session_connected', 'coap_pdu_encode_header', 'coap_show_pdu', 'coap_option_filter_get', 'coap_delete_bin_const', 'coap_dtls_new_context']

tests/oss-fuzz/proxy_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_session_free', 'coap_free_resource', 'coap_proxy_get_ongoing_session', 'coap_send_internal', 'coap_show_pdu', 'coap_proxy_forward_request_lkd', 'coap_session_check_connect', 'coap_add_data_large_internal', 'coap_new_bin_const']

tests/oss-fuzz/block_check_target.c

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['coap_io_do_epoll_lkd', 'coap_make_str_const', 'coap_pdu_parse_opt_base', 'coap_socket_connect_udp', 'coap_get_resource_from_uri_path_lkd', 'coap_show_pdu', 'coap_add_block_b_data', 'coap_add_block', 'coap_add_option', 'coap_dtls_new_context']

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
coap_show_pdu	327	20	6.116%	['pdu_parse_tcp_fuzzer', 'ws_frame_fuzzer', 'persist_fuzzer', 'cache_key_fuzzer', 'async_fuzzer', 'pdu_parse_ws_fuzzer', 'block_fuzzer', 'pdu_parse_udp_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_print_addr	40	15	37.5%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_print_ip_addr	49	15	30.61%	['ws_frame_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_debug_set_packet_loss	39	13	33.33%	['persist_fuzzer', 'async_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'block_check_fuzzer', 'observe_fuzzer', 'oscore_decrypt_fuzzer']
coap_debug_send_packet	42	22	52.38%	['persist_fuzzer', 'async_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'oscore_decrypt_fuzzer']
coap_debug_set_packet_fail	39	13	33.33%	['async_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'block_check_fuzzer', 'observe_fuzzer', 'oscore_decrypt_fuzzer']
coap_socket_connect_udp	165	74	44.84%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_socket_send	118	16	13.55%	['persist_fuzzer', 'async_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'oscore_decrypt_fuzzer']
coap_test_cid_tuple_change	31	4	12.90%	['persist_fuzzer', 'async_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'oscore_decrypt_fuzzer']
coap_new_context	69	37	53.62%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_send_internal	164	77	46.95%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_remove_from_queue	38	6	15.78%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_cancel_session_messages	32	5	15.62%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_call_response_handler	43	18	41.86%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_dispatch	399	183	45.86%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_handle_event_lkd	71	24	33.80%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_is_session_proxy	58	10	17.24%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
prepend_508_ip	90	35	38.88%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_remove_from_queue_token	45	4	8.888%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
handle_signaling	77	33	42.85%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
handle_response	74	17	22.97%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_dtls_send	41	18	43.90%	['network_message_fuzzer']
coap_dtls_info_callback	66	26	39.39%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_dgram_ctrl	61	31	50.81%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
setup_pki_ssl	291	13	4.467%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_remove_option	78	11	14.10%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_delete_proxy_subscriber	39	5	12.82%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_session_delay_pdu	38	17	44.73%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_session_connected	60	11	18.33%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_socket_connect_tcp1	102	36	35.29%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_socket_write	39	20	51.28%	['network_message_fuzzer']
coap_handle_request_send_block	258	28	10.85%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_handle_request_put_block	401	65	16.20%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
setup_block_b	35	18	51.42%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_add_resource_lkd	38	20	52.63%	['persist_fuzzer', 'async_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'observe_fuzzer']
coap_ws_write	71	9	12.67%	['ws_frame_fuzzer']
coap_ws_rd_http_header_server	79	10	12.65%	['ws_frame_fuzzer']
coap_ws_rd_http_header_client	62	11	17.74%	['ws_frame_fuzzer']
coap_pdu_duplicate_lkd	75	31	41.33%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_add_observer	143	62	43.35%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_delete_observer_internal	40	17	42.5%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_socket_bind_udp	75	29	38.66%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_new_endpoint_lkd	97	34	35.05%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_persist_observe_add_lkd	202	30	14.85%	['persist_fuzzer']
coap_crypto_aead_decrypt	49	15	30.61%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_oscore_decrypt_pdu	677	163	24.07%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
oscore_validate_sender_seq	51	18	35.29%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
oscore_cbor_put_unsigned	47	10	21.27%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
oscore_find_context	105	30	28.57%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
oscore_log_context	39	4	10.25%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
get_coap_addr_info	55	16	29.09%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
update_coap_addr_port	39	8	20.51%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_client_delay_first	47	5	10.63%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_send_lkd	290	32	11.03%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_proxy_log_entry	32	3	9.375%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_proxy_del_req	34	10	29.41%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_verify_proxy_scheme_supported	45	7	15.55%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_proxy_remove_association	40	14	35.0%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_proxy_forward_request_lkd	243	115	47.32%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_proxy_get_ongoing_session	162	67	41.35%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_get_uri_proxy_scheme_info	51	16	31.37%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_resource_proxy_uri_init2	37	16	43.24%	['proxy_fuzzer']
coap_add_data_blocked_response	101	51	50.49%	['block_check_fuzzer']
coap_cancel_observe_lkd	72	13	18.05%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_block_check_lg_crcv_timeouts	55	19	34.54%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_block_check_lg_srcv_timeouts	80	19	23.75%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_block_check_q_block1_xmit	49	13	26.53%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_block_check_q_block2_xmit	50	13	26.0%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_io_prepare_io_lkd	344	77	22.38%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_io_do_epoll_lkd	69	10	14.49%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']
coap_proxy_check_timeouts	44	7	15.90%	['ws_frame_fuzzer', 'persist_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'block_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer', 'oscore_decrypt_fuzzer']

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file	Reached by	Covered by
	[]	[]
/src/libcoap/src/coap_strm_posix.c	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer']
/src/libcoap/tests/oss-fuzz/observe_target.c	['observe_fuzzer']	['observe_fuzzer']
/src/libcoap/src/coap_openssl.c	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/oscore/oscore_cose.c	['oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['oscore_conf_parse_fuzzer', 'oscore_decrypt_fuzzer']
/src/libcoap/tests/oss-fuzz/uri_extended_target.c	['uri_extended_fuzzer']	['uri_extended_fuzzer']
/usr/include/openssl/x509v3.h	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	[]
/src/libcoap/src/coap_subscribe.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/usr/include/openssl/ssl.h	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	[]
/src/libcoap/src/coap_proxy.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_ws.c	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'ws_frame_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer']
/src/libcoap/./include/coap3/coap_uri.h	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	[]
/src/libcoap/./include/coap3/coap_block_internal.h	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	[]
/src/libcoap/tests/oss-fuzz/network_message_target.c	['network_message_fuzzer']	['network_message_fuzzer']
/src/libcoap/src/coap_mem.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'get_asn1_tag_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'get_asn1_tag_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_block.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/get_asn1_tag_target.c	['get_asn1_tag_fuzzer']	['get_asn1_tag_fuzzer']
/src/libcoap/src/coap_net.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_resource.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_async.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/ws_frame_target.c	['ws_frame_fuzzer']	['ws_frame_fuzzer']
/src/libcoap/tests/oss-fuzz/oscore_cbor_target.c	['oscore_cbor_fuzzer']	['oscore_cbor_fuzzer']
/src/libcoap/src/coap_netif.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/block_check_target.c	['block_check_fuzzer']	['block_check_fuzzer']
/src/libcoap/src/coap_dgrm_posix.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/./include/coap3/coap_pdu_internal.h	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	[]
/src/libcoap/src/oscore/oscore_context.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_option.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/coap_fuzz_helper.c	['block_fuzzer', 'async_fuzzer', 'observe_fuzzer']	['block_fuzzer', 'async_fuzzer', 'observe_fuzzer']
/src/libcoap/src/coap_event.c	['block_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['block_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_pdu.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/pdu_parse_udp_target.c	['pdu_parse_udp_fuzzer']	['pdu_parse_udp_fuzzer']
/src/libcoap/tests/oss-fuzz/dtls_define_target.c	['dtls_define_fuzzer']	['dtls_define_fuzzer']
/src/libcoap/src/coap_prng.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_cache.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['cache_key_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/split_uri_target.c	['split_uri_fuzzer']	['split_uri_fuzzer']
/src/libcoap/src/coap_io.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'async_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/oscore_conf_parse_target.c	['oscore_conf_parse_fuzzer']	['oscore_conf_parse_fuzzer']
/src/libcoap/src/coap_encode.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_address.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/./include/coap3/coap_address.h	[]	[]
/src/libcoap/tests/oss-fuzz/block_target.c	['block_fuzzer']	['block_fuzzer']
/src/libcoap/src/coap_time.c	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'get_asn1_tag_fuzzer', 'dtls_define_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_str.c	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'get_asn1_tag_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'get_asn1_tag_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/oscore/oscore_cbor.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer']
/src/libcoap/tests/oss-fuzz/pdu_parse_ws_target.c	['pdu_parse_ws_fuzzer']	['pdu_parse_ws_fuzzer']
/src/libcoap/tests/oss-fuzz/pdu_parse_tcp_target.c	['pdu_parse_tcp_fuzzer']	['pdu_parse_tcp_fuzzer']
/src/libcoap/tests/oss-fuzz/async_target.c	['async_fuzzer']	['async_fuzzer']
/src/libcoap/src/oscore/oscore_crypto.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['oscore_decrypt_fuzzer']
/src/libcoap/tests/oss-fuzz/oscore_decrypt_target.c	['oscore_decrypt_fuzzer']	['oscore_decrypt_fuzzer']
/src/libcoap/src/coap_session.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_dtls.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'dtls_define_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'dtls_define_fuzzer']
/src/libcoap/tests/oss-fuzz/persist_target.c	['persist_fuzzer']	['persist_fuzzer']
/src/libcoap/src/oscore/oscore.c	['oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['oscore_conf_parse_fuzzer', 'oscore_decrypt_fuzzer']
/src/libcoap/src/coap_asn1.c	['get_asn1_tag_fuzzer']	['get_asn1_tag_fuzzer']
/src/libcoap/src/coap_io_posix.c	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_uri.c	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/./include/coap3/coap_resource_internal.h	['network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	[]
/src/libcoap/src/coap_debug.c	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'get_asn1_tag_fuzzer', 'dtls_define_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'pdu_parse_tcp_fuzzer', 'oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'dtls_define_fuzzer', 'persist_fuzzer', 'oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_oscore.c	['oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']	['oscore_conf_parse_fuzzer', 'network_message_fuzzer', 'block_fuzzer', 'cache_key_fuzzer', 'ws_frame_fuzzer', 'async_fuzzer', 'observe_fuzzer', 'persist_fuzzer', 'oscore_decrypt_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer']
/src/libcoap/tests/oss-fuzz/cache_key_target.c	['cache_key_fuzzer']	['cache_key_fuzzer']
/src/libcoap/tests/oss-fuzz/proxy_target.c	['proxy_fuzzer']	['proxy_fuzzer']

Directories in report

Directory
/usr/include/openssl/
/src/libcoap/tests/oss-fuzz/
/src/libcoap/./include/coap3/
/src/libcoap/src/oscore/
/src/libcoap/src/