High level conclusions

Fuzzers reach 55.77% code coverage.

Fuzzers reach 84.90% of cyclomatic complexity.

Fuzzers reach 70.48% of all functions.

Fuzzer network_message_fuzzer is blocked:

The runtime code coverage of network_message_fuzzer covers 26.90% 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 14.37% 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_check_fuzzer is blocked:

The runtime code coverage of block_check_fuzzer covers 22.98% 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 23.53% 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 10.78% 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 24.75% 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 22.40% 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 27.88% 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 24.34% 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 23.33% 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.

Reachability and coverage overview

Functions statically reachable by fuzzers

714 / 1013

Cyclomatic complexity statically reachable by fuzzers

8129 / 9574

Runtime code coverage of functions

565 / 1013

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: 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: 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: 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]	20	11.4%
yellow	[10:29]	10	5.74%
greenyellow	[30:49]	4	2.29%
lawngreen	50+	110	63.2%
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: 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]	15	3.34%
yellow	[10:29]	14	3.12%
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: 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	4537	88.1%
gold	[1:9]	4	0.07%
yellow	[10:29]	4	0.07%
greenyellow	[30:49]	4	0.07%
lawngreen	50+	599	11.6%
All colors	5148	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
999	3802	coap_pdu_parse_opt	call site: 03802	coap_handle_event_lkd
501	2283	coap_make_str_const	call site: 02283	coap_session_release_lkd
262	3491	coap_session_free	call site: 03491	coap_dtls_handle_timeout
223	1922	coap_digest_free	call site: 01922	coap_handle_event_lkd
217	2797	coap_cache_derive_key_w_ignore	call site: 02797	coap_cancel_observe_lkd
214	1388	coap_send_internal	call site: 01388	coap_oscore_new_pdu_encrypted_lkd
208	3076	coap_get_resource_from_uri_path_lkd	call site: 03076	coap_session_max_pdu_size_lkd
169	1061	coap_pdu_encode_header	call site: 01061	coap_proxy_forward_request_lkd
153	3328	coap_touch_observer	call site: 03328	coap_delete_observer_request
148	720	coap_show_pdu	call site: 00720	coap_option_next
110	1237	coap_new_bin_const	call site: 01237	coap_send_internal
77	1786	coap_send_internal	call site: 01786	coap_io_process_lkd

Runtime coverage analysis

Covered functions

203

Functions that are reachable but not covered

634

Reachable functions

827

Percentage of reachable functions covered

23.34%

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	18
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: 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: 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	4334	86.7%
gold	[1:9]	70	1.40%
yellow	[10:29]	68	1.36%
greenyellow	[30:49]	232	4.64%
lawngreen	50+	294	5.88%
All colors	4998	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	2272	coap_make_str_const	call site: 02272	coap_session_release_lkd
356	3844	coap_dispatch	call site: 03844	coap_oscore_decrypt_pdu
347	4253	coap_dispatch	call site: 04253	handle_response
253	3480	coap_session_free	call site: 03480	coap_dtls_handle_timeout
251	4608	coap_handle_dgram	call site: 04608	coap_handle_event_lkd
242	1050	coap_pdu_encode_header	call site: 01050	coap_proxy_forward_request_lkd
223	1911	coap_digest_free	call site: 01911	coap_handle_event_lkd
214	1377	coap_send_internal	call site: 01377	coap_oscore_new_pdu_encrypted_lkd
174	3093	handle_request	call site: 03093	coap_handle_request_put_block
148	709	coap_show_pdu	call site: 00709	coap_option_next
92	2786	coap_cache_derive_key_w_ignore	call site: 02786	coap_cancel_observe_lkd
72	3398	handle_request	call site: 03398	coap_resource_release_lkd

Runtime coverage analysis

Covered functions

202

Functions that are reachable but not covered

606

Reachable functions

801

Percentage of reachable functions covered

24.34%

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	19
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: 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	4227	84.2%
gold	[1:9]	193	3.84%
yellow	[10:29]	55	1.09%
greenyellow	[30:49]	63	1.25%
lawngreen	50+	480	9.56%
All colors	5018	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
606	2272	coap_make_str_const	call site: 02272	coap_session_release_lkd
287	1377	coap_send_internal	call site: 01377	coap_oscore_new_pdu_encrypted_lkd
253	3480	coap_session_free	call site: 03480	coap_dtls_handle_timeout
251	4608	coap_handle_dgram	call site: 04608	coap_handle_event_lkd
249	3844	coap_dispatch	call site: 03844	coap_oscore_decrypt_pdu
169	1050	coap_pdu_encode_header	call site: 01050	coap_proxy_forward_request_lkd
157	709	coap_show_pdu	call site: 00709	coap_session_release_lkd
141	4378	coap_handle_response_get_block	call site: 04378	coap_send_rst_lkd
126	2008	coap_add_data_large_internal	call site: 02008	coap_add_data_large_request_lkd
119	3209	coap_handle_request_send_block	call site: 03209	coap_pdu_duplicate_lkd
98	4278	coap_find_lg_xmit	call site: 04278	coap_send_q_blocks
75	4094	coap_find_lg_crcv	call site: 04094	coap_pdu_duplicate_lkd

Runtime coverage analysis

Covered functions

237

Functions that are reachable but not covered

582

Reachable functions

807

Percentage of reachable functions covered

27.88%

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	19
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: 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	4483	89.8%
gold	[1:9]	79	1.58%
yellow	[10:29]	112	2.24%
greenyellow	[30:49]	175	3.50%
lawngreen	50+	139	2.78%
All colors	4988	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
1379	3481	coap_session_free	call site: 03481	coap_dtls_handle_timeout
450	3021	coap_free_resource	call site: 03021	coap_check_async
387	2378	coap_proxy_get_ongoing_session	call site: 02378	coap_new_client_session_oscore_pki3_lkd
250	1856	coap_session_connected	call site: 01856	coap_handle_event_lkd
214	1378	coap_send_internal	call site: 01378	coap_oscore_new_pdu_encrypted_lkd
157	710	coap_show_pdu	call site: 00710	coap_session_release_lkd
144	2867	coap_proxy_forward_request_lkd	call site: 02867	coap_proxy_call_response_handler
143	2234	coap_session_check_connect	call site: 02234	coap_session_release_lkd
83	1227	coap_new_bin_const	call site: 01227	coap_send_internal
70	109	coap_dtls_new_context	call site: 00109	coap_session_str
69	260	coap_dtls_free_context	call site: 00260	coap_new_endpoint_lkd
64	874	coap_free_resource	call site: 00874	coap_notify_observers

Runtime coverage analysis

Covered functions

186

Functions that are reachable but not covered

620

Reachable functions

799

Percentage of reachable functions covered

22.4%

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	19
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: 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: 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	4397	87.0%
gold	[1:9]	106	2.09%
yellow	[10:29]	113	2.23%
greenyellow	[30:49]	294	5.82%
lawngreen	50+	139	2.75%
All colors	5049	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
606	2272	coap_make_str_const	call site: 02272	coap_session_release_lkd
356	3844	coap_dispatch	call site: 03844	coap_oscore_decrypt_pdu
279	1855	coap_session_connected	call site: 01855	coap_handle_event_lkd
265	4254	coap_dispatch	call site: 04254	coap_send_ack_lkd
253	3480	coap_session_free	call site: 03480	coap_dtls_handle_timeout
251	4608	coap_handle_dgram	call site: 04608	coap_handle_event_lkd
242	1050	coap_pdu_encode_header	call site: 01050	coap_proxy_forward_request_lkd
239	3092	handle_request	call site: 03092	coap_handle_request_put_block
214	1377	coap_send_internal	call site: 01377	coap_oscore_new_pdu_encrypted_lkd
157	709	coap_show_pdu	call site: 00709	coap_session_release_lkd
70	108	coap_dtls_new_context	call site: 00108	coap_session_str
70	1594	coap_pdu_duplicate_lkd	call site: 01594	oscore_new_association

Runtime coverage analysis

Covered functions

208

Functions that are reachable but not covered

611

Reachable functions

812

Percentage of reachable functions covered

24.75%

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	19
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: 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: 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]	19	4.24%
yellow	[10:29]	16	3.57%
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: 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	4831	94.6%
gold	[1:9]	47	0.92%
yellow	[10:29]	208	4.07%
greenyellow	[30:49]	7	0.13%
lawngreen	50+	11	0.21%
All colors	5104	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
1379	3471	coap_session_free	call site: 03471	coap_dtls_handle_timeout
1237	2224	coap_session_check_connect	call site: 02224	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
279	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
41	2174	coap_session_create_client	call site: 02174	coap_netif_strm_connect1
40	4936	coap_ws_rd_http_header_client	call site: 04936	coap_ws_build_key_hash

Runtime coverage analysis

Covered functions

93

Functions that are reachable but not covered

720

Reachable functions

807

Percentage of reachable functions covered

10.78%

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	16
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: 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	4548	89.8%
gold	[1:9]	134	2.64%
yellow	[10:29]	293	5.78%
greenyellow	[30:49]	17	0.33%
lawngreen	50+	69	1.36%
All colors	5061	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
1099	2480	oscore_context_release_recipients	call site: 02480	coap_session_release_lkd
701	4267	coap_oscore_decrypt_pdu	call site: 04267	coap_delete_node_lkd
372	3589	coap_session_free	call site: 03589	coap_dtls_handle_timeout
279	1974	coap_session_connected	call site: 01974	coap_handle_event_lkd
255	1174	coap_pdu_encode_header	call site: 01174	coap_proxy_forward_request_lkd
228	833	coap_show_pdu	call site: 00833	coap_session_release_lkd
93	4172	coap_oscore_decrypt_pdu	call site: 04172	coap_handle_event_lkd
82	569	coap_option_filter_get	call site: 00569	coap_split_proxy_uri
70	85	coap_delete_bin_const	call site: 00085	coap_parse_oscore_rcp_conf_mem
70	237	coap_dtls_new_context	call site: 00237	coap_session_str
69	388	coap_dtls_free_context	call site: 00388	coap_new_endpoint_lkd
61	1434	coap_add_data_after	call site: 01434	coap_rebuild_pdu_for_proxy

Runtime coverage analysis

Covered functions

196

Functions that are reachable but not covered

614

Reachable functions

803

Percentage of reachable functions covered

23.54%

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	19
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: 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	4511	89.1%
gold	[1:9]	11	0.21%
yellow	[10:29]	380	7.51%
greenyellow	[30:49]	47	0.92%
lawngreen	50+	110	2.17%
All colors	5059	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
1240	3597	coap_io_do_epoll_lkd	call site: 03597	coap_read_endpoint
695	2273	coap_make_str_const	call site: 02273	coap_session_release_lkd
376	1338	coap_pdu_parse_opt_base	call site: 01338	coap_oscore_new_pdu_encrypted_lkd
201	1019	coap_socket_connect_udp	call site: 01019	coap_session_reestablished
192	3066	coap_get_resource_from_uri_path_lkd	call site: 03066	coap_session_max_pdu_size_lkd
161	710	coap_show_pdu	call site: 00710	coap_session_release_lkd
147	3259	coap_add_block_b_data	call site: 03259	coap_send_internal
89	2046	coap_add_block	call site: 02046	coap_send_internal
72	1769	coap_add_option	call site: 01769	coap_send_internal
70	109	coap_dtls_new_context	call site: 00109	coap_session_str
66	458	coap_new_string	call site: 00458	coap_split_proxy_uri
57	881	coap_find_lg_xmit_response	call site: 00881	coap_delete_observer

Runtime coverage analysis

Covered functions

188

Functions that are reachable but not covered

620

Reachable functions

805

Percentage of reachable functions covered

22.98%

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	19
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

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	4626	93.3%
gold	[1:9]	47	0.94%
yellow	[10:29]	15	0.30%
greenyellow	[30:49]	222	4.47%
lawngreen	50+	47	0.94%
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
1001	3780	coap_pdu_parse_opt	call site: 03780	coap_handle_event_lkd
684	2777	coap_cache_derive_key_w_ignore	call site: 02777	coap_cancel_observe_lkd
540	2224	coap_session_check_connect	call site: 02224	coap_session_release_lkd
386	1328	coap_pdu_parse_opt_base	call site: 01328	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
262	3471	coap_session_free	call site: 03471	coap_dtls_handle_timeout
223	1902	coap_digest_free	call site: 01902	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

679

Reachable functions

793

Percentage of reachable functions covered

14.38%

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	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	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: 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	4240	84.6%
gold	[1:9]	38	0.75%
yellow	[10:29]	55	1.09%
greenyellow	[30:49]	39	0.77%
lawngreen	50+	639	12.7%
All colors	5011	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
417	2462	setup_pki_ssl	call site: 02462	coap_session_release_lkd
325	3845	coap_dispatch	call site: 03845	coap_oscore_decrypt_pdu
285	3072	handle_request	call site: 03072	coap_session_max_pdu_size_lkd
279	1856	coap_session_connected	call site: 01856	coap_handle_event_lkd
265	4255	coap_dispatch	call site: 04255	coap_send_ack_lkd
253	3481	coap_session_free	call site: 03481	coap_dtls_handle_timeout
252	1382	coap_send_internal	call site: 01382	coap_oscore_new_pdu_encrypted_lkd
223	2234	coap_session_check_connect	call site: 02234	coap_session_release_lkd
214	1060	coap_pdu_encode_header	call site: 01060	coap_proxy_forward_request_lkd
157	711	coap_show_pdu	call site: 00711	coap_session_release_lkd
145	4707	coap_epoll_ctl_mod	call site: 04707	coap_accept_endpoint
83	2944	coap_send_error_lkd	call site: 02944	coap_pdu_duplicate_lkd

Runtime coverage analysis

Covered functions

232

Functions that are reachable but not covered

595

Reachable functions

814

Percentage of reachable functions covered

26.9%

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	19
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

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	691	0	7165	121
coap_netif_dgrm_write	/src/libcoap/src/coap_netif.c	3	['N/A', 'N/A', 'size_t']	6	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	687	0	7080	36

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

Functions statically reachable by fuzzers

735 / 1013

Cyclomatic complexity statically reachable by fuzzers

8484 / 9574

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/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/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/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/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/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_touch_observer', 'coap_show_pdu']

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/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_session_free', 'coap_handle_dgram', 'coap_pdu_encode_header', 'coap_digest_free', 'coap_send_internal', 'handle_request', '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_send_internal', 'coap_session_free', 'coap_handle_dgram', 'coap_dispatch', 'coap_pdu_encode_header', 'coap_show_pdu', 'coap_handle_response_get_block', 'coap_add_data_large_internal', 'coap_handle_request_send_block']

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_session_connected', 'coap_send_internal', 'coap_show_pdu', 'coap_proxy_forward_request_lkd', 'coap_session_check_connect', 'coap_new_bin_const', 'coap_dtls_new_context']

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/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_session_free', 'coap_handle_dgram', 'coap_pdu_encode_header', 'handle_request', 'coap_send_internal', 'coap_show_pdu']

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/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/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/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/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']

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_pdu_parse_opt_base', 'coap_socket_connect_udp', 'coap_pdu_resize', 'coap_session_free', 'coap_digest_free', 'coap_delete_str_const', 'coap_option_next']

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', 'handle_request', 'coap_session_connected', 'coap_session_free', 'coap_send_internal', 'coap_session_check_connect', 'coap_pdu_encode_header', 'coap_show_pdu']

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%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'pdu_parse_ws_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'proxy_fuzzer', 'pdu_parse_udp_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_debug_send_packet	42	22	52.38%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'async_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer']
coap_debug_set_packet_common	41	15	36.58%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer']
coap_socket_bind_udp	75	29	38.66%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_socket_connect_udp	165	74	44.84%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_socket_send	118	16	13.55%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'async_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer']
coap_test_cid_tuple_change	31	4	12.90%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'async_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer']
coap_new_context	69	37	53.62%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_send_internal	164	77	46.95%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_pdu_duplicate_lkd	75	31	41.33%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_add_resource_lkd	38	20	52.63%	['block_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'observe_fuzzer']
coap_add_observer	143	62	43.35%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_delete_observer_internal	40	18	45.0%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_session_connected	60	11	18.33%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_new_endpoint_lkd	97	34	35.05%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_persist_observe_add_lkd	202	30	14.85%	['persist_fuzzer']
coap_cancel_session_messages	32	5	15.62%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_dispatch	399	183	45.86%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_handle_event_lkd	71	25	35.21%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_is_session_proxy	58	10	17.24%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_remove_from_queue_token	45	4	8.888%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_remove_option	78	13	16.66%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_find_lg_xmit	57	10	17.54%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_find_lg_crcv	31	10	32.25%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_handle_request_send_block	258	31	12.01%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_handle_request_put_block	419	157	37.47%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_handle_response_send_block	252	11	4.365%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_handle_response_get_block	571	29	5.078%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
setup_block_b	35	18	51.42%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
blocks_add_entry	49	15	30.61%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_remove_from_queue	38	6	15.78%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_call_response_handler	43	18	41.86%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
handle_response	74	21	28.37%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_delete_proxy_subscriber	39	5	12.82%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_print_wellknown_lkd	143	75	52.44%	['block_fuzzer']
get_coap_addr_info	55	16	29.09%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
update_coap_addr_port	39	8	20.51%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_send_lkd	290	32	11.03%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_proxy_log_entry	32	3	9.375%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_proxy_del_req	34	10	29.41%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_verify_proxy_scheme_supported	45	7	15.55%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_proxy_remove_association	40	14	35.0%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_proxy_forward_request_lkd	243	108	44.44%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_proxy_get_ongoing_session	162	67	41.35%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_get_uri_proxy_scheme_info	51	16	31.37%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_resource_proxy_uri_init2	37	16	43.24%	['proxy_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_oscore_decrypt_pdu	677	163	24.07%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
oscore_validate_sender_seq	51	18	35.29%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
oscore_cbor_put_unsigned	47	10	21.27%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
oscore_find_context	105	30	28.57%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
oscore_log_context	39	4	10.25%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_add_data_blocked_response	101	51	50.49%	['block_check_fuzzer']
coap_cancel_observe_lkd	72	13	18.05%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_block_check_lg_xmit_timeouts	41	22	53.65%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_block_check_lg_crcv_timeouts	55	19	34.54%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_block_check_lg_srcv_timeouts	80	19	23.75%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_block_check_q_block1_xmit	49	13	26.53%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_block_check_q_block2_xmit	50	13	26.0%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_io_prepare_io_lkd	344	77	22.38%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_client_delay_first	47	5	10.63%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_io_do_epoll_lkd	69	10	14.49%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_proxy_check_timeouts	44	7	15.90%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_print_addr	40	15	37.5%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_print_ip_addr	49	15	30.61%	['uri_extended_fuzzer', 'block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
prepend_508_ip	90	35	38.88%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
handle_signaling	77	33	42.85%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_dtls_send	41	18	43.90%	['network_message_fuzzer']
coap_dtls_info_callback	66	26	39.39%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_dgram_ctrl	61	31	50.81%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
setup_pki_ssl	291	13	4.467%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_session_delay_pdu	38	17	44.73%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_socket_connect_tcp1	102	27	26.47%	['block_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'async_fuzzer', 'cache_key_fuzzer', 'persist_fuzzer', 'proxy_fuzzer', 'network_message_fuzzer', 'observe_fuzzer', 'ws_frame_fuzzer']
coap_socket_write	39	20	51.28%	['network_message_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/tests/oss-fuzz/uri_extended_target.c	['uri_extended_fuzzer']	['uri_extended_fuzzer']
/src/libcoap/src/coap_block.c	['pdu_parse_ws_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'async_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/oscore/oscore_cose.c	['oscore_conf_parse_fuzzer', 'persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_conf_parse_fuzzer', 'oscore_decrypt_fuzzer']
/src/libcoap/tests/oss-fuzz/network_message_target.c	['network_message_fuzzer']	['network_message_fuzzer']
/src/libcoap/./include/coap3/coap_uri.h	['uri_extended_fuzzer', 'persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	[]
/src/libcoap/tests/oss-fuzz/split_uri_target.c	['split_uri_fuzzer']	['split_uri_fuzzer']
/src/libcoap/tests/oss-fuzz/ws_frame_target.c	['ws_frame_fuzzer']	['ws_frame_fuzzer']
/src/libcoap/src/coap_prng.c	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/tests/oss-fuzz/cache_key_target.c	['cache_key_fuzzer']	['cache_key_fuzzer']
/src/libcoap/src/coap_openssl.c	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_resource.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_mem.c	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'get_asn1_tag_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'get_asn1_tag_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/usr/include/openssl/ssl.h	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	[]
/src/libcoap/tests/oss-fuzz/dtls_define_target.c	['dtls_define_fuzzer']	['dtls_define_fuzzer']
/src/libcoap/tests/oss-fuzz/block_target.c	['block_fuzzer']	['block_fuzzer']
/src/libcoap/src/coap_address.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_netif.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_event.c	['observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'block_check_fuzzer']	['observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'block_check_fuzzer']
/src/libcoap/src/coap_session.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_asn1.c	['get_asn1_tag_fuzzer']	['get_asn1_tag_fuzzer']
/src/libcoap/tests/oss-fuzz/oscore_decrypt_target.c	['oscore_decrypt_fuzzer']	['oscore_decrypt_fuzzer']
/src/libcoap/./include/coap3/coap_pdu_internal.h	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	[]
/src/libcoap/src/coap_oscore.c	['oscore_conf_parse_fuzzer', 'persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_conf_parse_fuzzer', 'persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/usr/include/openssl/x509v3.h	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	[]
/src/libcoap/tests/oss-fuzz/oscore_cbor_target.c	['oscore_cbor_fuzzer']	['oscore_cbor_fuzzer']
/src/libcoap/tests/oss-fuzz/async_target.c	['async_fuzzer']	['async_fuzzer']
/src/libcoap/tests/oss-fuzz/get_asn1_tag_target.c	['get_asn1_tag_fuzzer']	['get_asn1_tag_fuzzer']
/src/libcoap/src/oscore/oscore_cbor.c	['oscore_cbor_fuzzer', 'persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'oscore_decrypt_fuzzer']
/src/libcoap/src/coap_ws.c	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'pdu_parse_tcp_fuzzer', 'split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer']
/src/libcoap/src/coap_time.c	['oscore_cbor_fuzzer', 'dtls_define_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'get_asn1_tag_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_encode.c	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/tests/oss-fuzz/persist_target.c	['persist_fuzzer']	['persist_fuzzer']
/src/libcoap/src/coap_dtls.c	['dtls_define_fuzzer', 'persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['dtls_define_fuzzer', 'network_message_fuzzer']
/src/libcoap/tests/oss-fuzz/observe_target.c	['observe_fuzzer']	['observe_fuzzer']
/src/libcoap/tests/oss-fuzz/pdu_parse_ws_target.c	['pdu_parse_ws_fuzzer']	['pdu_parse_ws_fuzzer']
/src/libcoap/src/coap_option.c	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/oscore/oscore_crypto.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_decrypt_fuzzer']
/src/libcoap/src/coap_dgrm_posix.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/tests/oss-fuzz/coap_fuzz_helper.c	['observe_fuzzer', 'block_fuzzer', 'async_fuzzer']	['observe_fuzzer', 'block_fuzzer', 'async_fuzzer']
/src/libcoap/src/oscore/oscore_context.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/tests/oss-fuzz/pdu_parse_udp_target.c	['pdu_parse_udp_fuzzer']	['pdu_parse_udp_fuzzer']
/src/libcoap/src/coap_io_posix.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/oscore/oscore.c	['oscore_conf_parse_fuzzer', 'persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_conf_parse_fuzzer', 'oscore_decrypt_fuzzer']
/src/libcoap/tests/oss-fuzz/oscore_conf_parse_target.c	['oscore_conf_parse_fuzzer']	['oscore_conf_parse_fuzzer']
/src/libcoap/src/coap_subscribe.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_debug.c	['oscore_cbor_fuzzer', 'dtls_define_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'get_asn1_tag_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'dtls_define_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_net.c	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/./include/coap3/coap_address.h	[]	[]
/src/libcoap/src/coap_io.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'block_check_fuzzer', 'network_message_fuzzer']
/src/libcoap/tests/oss-fuzz/block_check_target.c	['block_check_fuzzer']	['block_check_fuzzer']
/src/libcoap/src/coap_cache.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'proxy_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer']
/src/libcoap/tests/oss-fuzz/proxy_target.c	['proxy_fuzzer']	['proxy_fuzzer']
/src/libcoap/tests/oss-fuzz/pdu_parse_tcp_target.c	['pdu_parse_tcp_fuzzer']	['pdu_parse_tcp_fuzzer']
/src/libcoap/src/coap_str.c	['oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'get_asn1_tag_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'get_asn1_tag_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_strm_posix.c	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'pdu_parse_tcp_fuzzer', 'split_uri_fuzzer', 'pdu_parse_udp_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_async.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_uri.c	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['oscore_cbor_fuzzer', 'oscore_conf_parse_fuzzer', 'pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'split_uri_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_proxy.c	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/src/coap_pdu.c	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	['pdu_parse_ws_fuzzer', 'uri_extended_fuzzer', 'persist_fuzzer', 'pdu_parse_tcp_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'pdu_parse_udp_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']
/src/libcoap/./include/coap3/coap_block_internal.h	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	[]
/src/libcoap/./include/coap3/coap_resource_internal.h	['persist_fuzzer', 'observe_fuzzer', 'block_fuzzer', 'proxy_fuzzer', 'async_fuzzer', 'ws_frame_fuzzer', 'oscore_decrypt_fuzzer', 'block_check_fuzzer', 'cache_key_fuzzer', 'network_message_fuzzer']	[]

Directories in report

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