fuzz: Add fuzzer targeting RADIUS messages

Closes strongswan/strongswan#3027

Signed-off-by: Arthur Chan <[email protected]>

fuzz/Makefile.am

@@ -43,6 +43,10 @@ charon_ldflags = \
 	$(top_builddir)/src/libradius/.libs/libradius.a \
 	$(fuzz_ldflags)
 
+radius_ldflags = \
+	$(top_builddir)/src/libradius/.libs/libradius.a \
+	$(fuzz_ldflags)
+
 # fuzzers that use crypto plugins in a significant way
 fuzzers_with_plugins = \
 	fuzz_certs fuzz_crls fuzz_ocsp_req fuzz_ocsp_rsp
@@ -51,7 +55,7 @@ fuzzers_with_def = $(fuzzers_with_plugins:%=%_def)
 fuzzers_with_cus = $(fuzzers_with_plugins:%=%_cus)
 
 fuzzers_no_plugins = \
-	fuzz_ids fuzz_ike fuzz_pa_tnc fuzz_pb_tnc fuzz_vici
+	fuzz_ids fuzz_ike fuzz_pa_tnc fuzz_pb_tnc fuzz_radius fuzz_vici
 
 ALL_FUZZERS=$(fuzzers_with_def) $(fuzzers_with_cus) $(fuzzers_no_plugins)
 
@@ -95,6 +99,9 @@ fuzz_ids: fuzz_ids.c ${libfuzzer}
 fuzz_ike: fuzz_ike.c ${libfuzzer}
 	$(CC) $(AM_CPPFLAGS) $(CFLAGS) -o $@ $< $(charon_ldflags)
 
+fuzz_radius: fuzz_radius.c ${libfuzzer}
+	$(CC) $(fuzz_cppflags_def) $(CFLAGS) -o $@ $< $(radius_ldflags)
+
 fuzz_vici: fuzz_vici.c ${libfuzzer}
 	$(CC) $(AM_CPPFLAGS) $(CFLAGS) -o $@ $< $(charon_ldflags)