diff options
| author | Ivan Nardi <12729895+IvanNardi@users.noreply.github.com> | 2023-01-27 07:09:18 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-27 07:09:18 +0100 |
| commit | 6d00a9e0bd4cdb2be26577f53b75b3078cefd4c3 (patch) | |
| tree | 327e7d1bc8e89a990e99ea8cfb4a748c80d12f32 | |
| parent | eea99564308fffca675918506a6e12f7a4f71a6f (diff) | |
fuzz: add a new fuzzer to test serialization/deserialization code (#1876)
Autodetecting the needed buffer size is quite complex (especially with
float/double values) so it is mandatory to properly check for
`ndpi_snprintf` truncation.
These issues have been undetected so far probably because the default
buffer is big enough for all common cases.
Add an example of usage of `ndpi_deserialize_clone_all()` (taken from
`ntopng`)
144 files changed, 564 insertions, 78 deletions
diff --git a/.github/workflows/cifuzz.yml b/.github/workflows/cifuzz.yml index 2285fad3d..da5cbff15 100644 --- a/.github/workflows/cifuzz.yml +++ b/.github/workflows/cifuzz.yml @@ -18,7 +18,7 @@ jobs: uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master with: oss-fuzz-project-name: 'ndpi' - fuzz-seconds: 1500 + fuzz-seconds: 1600 dry-run: false sanitizer: ${{ matrix.sanitizer }} - name: Check Crash (fails when a crash is detected) diff --git a/.gitignore b/.gitignore index 8b6b9efd7..e6e177083 100644 --- a/.gitignore +++ b/.gitignore @@ -61,6 +61,7 @@ /fuzz/fuzz_alg_ses_des /fuzz/fuzz_config /fuzz/fuzz_community_id +/fuzz/fuzz_serialization /fuzz/fuzz_ds_patricia /fuzz/fuzz_ds_libcache /fuzz/fuzz_ds_tree @@ -70,6 +71,7 @@ /fuzz/fuzz_quic_get_crypto_data_seed_corpus.zip /fuzz/fuzz_config_seed_corpus.zip /fuzz/fuzz_community_id_seed_corpus.zip +/fuzz/fuzz_serialization_seed_corpus.zip /fuzz/fuzz_alg_ses_des_seed_corpus.zip /fuzz/fuzz_alg_bins_seed_corpus.zip /fuzz/fuzz_alg_hll_seed_corpus.zip diff --git a/fuzz/Makefile.am b/fuzz/Makefile.am index c16d083a6..4729a3eec 100644 --- a/fuzz/Makefile.am +++ b/fuzz/Makefile.am @@ -1,4 +1,4 @@ -bin_PROGRAMS = fuzz_process_packet fuzz_ndpi_reader fuzz_ndpi_reader_alloc_fail fuzz_quic_get_crypto_data fuzz_config fuzz_community_id +bin_PROGRAMS = fuzz_process_packet fuzz_ndpi_reader fuzz_ndpi_reader_alloc_fail fuzz_quic_get_crypto_data fuzz_config fuzz_community_id fuzz_serialization #Alghoritms bin_PROGRAMS += fuzz_alg_bins fuzz_alg_hll fuzz_alg_hw_rsi_outliers_da fuzz_alg_jitter fuzz_alg_ses_des #Data structures @@ -86,6 +86,21 @@ fuzz_community_id_LINK=$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ $(LIBTOOLFLAGS) --mode=link $(CXX) @NDPI_CFLAGS@ $(AM_CXXFLAGS) $(CXXFLAGS) \ $(fuzz_community_id_LDFLAGS) @NDPI_LDFLAGS@ $(LDFLAGS) -o $@ +fuzz_serialization_SOURCES = fuzz_serialization.cpp fuzz_common_code.c +fuzz_serialization_CXXFLAGS = @NDPI_CFLAGS@ $(CXXFLAGS) -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION +fuzz_serialization_CFLAGS = @NDPI_CFLAGS@ $(CXXFLAGS) -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION +fuzz_serialization_LDADD = ../src/lib/libndpi.a $(ADDITIONAL_LIBS) +fuzz_serialization_LDFLAGS = $(LIBS) +if HAS_FUZZLDFLAGS +fuzz_serialization_CXXFLAGS += $(LIB_FUZZING_ENGINE) +fuzz_serialization_CFLAGS += $(LIB_FUZZING_ENGINE) +fuzz_serialization_LDFLAGS += $(LIB_FUZZING_ENGINE) +endif +# force usage of CXX for linker +fuzz_serialization_LINK=$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \ + $(LIBTOOLFLAGS) --mode=link $(CXX) @NDPI_CFLAGS@ $(AM_CXXFLAGS) $(CXXFLAGS) \ + $(fuzz_serialization_LDFLAGS) @NDPI_LDFLAGS@ $(LDFLAGS) -o $@ + fuzz_alg_bins_SOURCES = fuzz_alg_bins.cpp fuzz_common_code.c fuzz_alg_bins_CXXFLAGS = @NDPI_CFLAGS@ $(CXXFLAGS) -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION fuzz_alg_bins_CFLAGS = @NDPI_CFLAGS@ $(CXXFLAGS) -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION @@ -242,6 +257,11 @@ files_corpus_fuzz_config := $(wildcard corpus/fuzz_config/*) fuzz_config_seed_corpus.zip: $(files_corpus_fuzz_config) zip -j fuzz_config_seed_corpus.zip $(files_corpus_fuzz_config) +files_corpus_fuzz_serialization := $(wildcard corpus/fuzz_serialization/*) + +fuzz_serialization_seed_corpus.zip: $(files_corpus_fuzz_serialization) + zip -j fuzz_serialization_seed_corpus.zip $(files_corpus_fuzz_serialization) + files_corpus_fuzz_community_id := $(wildcard corpus/fuzz_community_id/*) fuzz_community_id_seed_corpus.zip: $(files_corpus_fuzz_community_id) @@ -292,7 +312,7 @@ files_corpus_fuzz_ds_tree := $(wildcard corpus/fuzz_ds_tree/*) fuzz_ds_tree_seed_corpus.zip: $(files_corpus_fuzz_ds_tree) zip -j fuzz_ds_tree_seed_corpus.zip $(files_corpus_fuzz_ds_tree) -corpus: fuzz_ndpi_reader_seed_corpus.zip fuzz_ndpi_reader_alloc_fail_seed_corpus.zip fuzz_quic_get_crypto_data_seed_corpus.zip fuzz_config_seed_corpus.zip fuzz_ds_patricia_seed_corpus.zip fuzz_ds_ahocorasick_seed_corpus.zip fuzz_alg_ses_des_seed_corpus.zip fuzz_alg_hw_rsi_outliers_da_seed_corpus.zip fuzz_alg_bins_seed_corpus.zip fuzz_alg_hll_seed_corpus.zip fuzz_alg_jitter_seed_corpus.zip fuzz_ds_libcache_seed_corpus.zip fuzz_community_id_seed_corpus.zip fuzz_ds_tree_seed_corpus.zip +corpus: fuzz_ndpi_reader_seed_corpus.zip fuzz_ndpi_reader_alloc_fail_seed_corpus.zip fuzz_quic_get_crypto_data_seed_corpus.zip fuzz_config_seed_corpus.zip fuzz_ds_patricia_seed_corpus.zip fuzz_ds_ahocorasick_seed_corpus.zip fuzz_alg_ses_des_seed_corpus.zip fuzz_alg_hw_rsi_outliers_da_seed_corpus.zip fuzz_alg_bins_seed_corpus.zip fuzz_alg_hll_seed_corpus.zip fuzz_alg_jitter_seed_corpus.zip fuzz_ds_libcache_seed_corpus.zip fuzz_community_id_seed_corpus.zip fuzz_ds_tree_seed_corpus.zip fuzz_serialization_seed_corpus.zip #Create dictionaries exactly as expected by oss-fuzz. #This way, if we need to change/update/add something, @@ -311,6 +331,7 @@ distdir: -o -name '*.dict' \ -o -path './corpus/fuzz_quic_get_crypto_data/*' \ -o -path './corpus/fuzz_config/*' \ + -o -path './corpus/fuzz_serialization/*' \ -o -path './corpus/fuzz_community_id/*' \ -o -path './corpus/fuzz_alg_ses_des/*' \ -o -path './corpus/fuzz_alg_bins/*' \ diff --git a/fuzz/corpus/fuzz_serialization/0067200701e9b0b5ec3db13f387a75e9e82202b0 b/fuzz/corpus/fuzz_serialization/0067200701e9b0b5ec3db13f387a75e9e82202b0 Binary files differnew file mode 100644 index 000000000..b7ffcef42 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/0067200701e9b0b5ec3db13f387a75e9e82202b0 diff --git a/fuzz/corpus/fuzz_serialization/00ba573f9435b38d7205d995bbfe1813add81ab3 b/fuzz/corpus/fuzz_serialization/00ba573f9435b38d7205d995bbfe1813add81ab3 Binary files differnew file mode 100644 index 000000000..79d7380b1 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/00ba573f9435b38d7205d995bbfe1813add81ab3 diff --git a/fuzz/corpus/fuzz_serialization/0228f43998915b3c03c642cadacb0fc9f34ad80f b/fuzz/corpus/fuzz_serialization/0228f43998915b3c03c642cadacb0fc9f34ad80f new file mode 100644 index 000000000..44e6876e8 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/0228f43998915b3c03c642cadacb0fc9f34ad80f @@ -0,0 +1 @@ +R…0-
\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/03e684ba5d7a6306ddfb1dd15f40f2c4a1a074ee b/fuzz/corpus/fuzz_serialization/03e684ba5d7a6306ddfb1dd15f40f2c4a1a074ee Binary files differnew file mode 100644 index 000000000..d8d696468 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/03e684ba5d7a6306ddfb1dd15f40f2c4a1a074ee diff --git a/fuzz/corpus/fuzz_serialization/07d9e6281c5355f19da85e221fc562ec2d877e3b b/fuzz/corpus/fuzz_serialization/07d9e6281c5355f19da85e221fc562ec2d877e3b Binary files differnew file mode 100644 index 000000000..9fcd23466 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/07d9e6281c5355f19da85e221fc562ec2d877e3b diff --git a/fuzz/corpus/fuzz_serialization/07dda5cbda20802250efce051169313efcc19c91 b/fuzz/corpus/fuzz_serialization/07dda5cbda20802250efce051169313efcc19c91 Binary files differnew file mode 100644 index 000000000..897cb5955 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/07dda5cbda20802250efce051169313efcc19c91 diff --git a/fuzz/corpus/fuzz_serialization/0826de64028c8e890d2c9f95ee0ac3180ad45431 b/fuzz/corpus/fuzz_serialization/0826de64028c8e890d2c9f95ee0ac3180ad45431 Binary files differnew file mode 100644 index 000000000..6a5aa7fe9 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/0826de64028c8e890d2c9f95ee0ac3180ad45431 diff --git a/fuzz/corpus/fuzz_serialization/09251a8df7e23a0e332eb0beee7afdec7e48fc7d b/fuzz/corpus/fuzz_serialization/09251a8df7e23a0e332eb0beee7afdec7e48fc7d Binary files differnew file mode 100644 index 000000000..23ddd25cd --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/09251a8df7e23a0e332eb0beee7afdec7e48fc7d diff --git a/fuzz/corpus/fuzz_serialization/0cf7de690bf6e03f2843688fef7e5fa6f8f5b50a b/fuzz/corpus/fuzz_serialization/0cf7de690bf6e03f2843688fef7e5fa6f8f5b50a new file mode 100644 index 000000000..f6c543e2d --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/0cf7de690bf6e03f2843688fef7e5fa6f8f5b50a @@ -0,0 +1 @@ +0ô{Шp(ã'}œ„F
\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/0f6e2d10bdff7d0f0f6ce142c9fa4d2a22d39fdb b/fuzz/corpus/fuzz_serialization/0f6e2d10bdff7d0f0f6ce142c9fa4d2a22d39fdb new file mode 100644 index 000000000..d538b12c7 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/0f6e2d10bdff7d0f0f6ce142c9fa4d2a22d39fdb @@ -0,0 +1 @@ +Äðáþð
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\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/dbb873b6c49161fb72609a09c79b1b4ef461e3f7 b/fuzz/corpus/fuzz_serialization/dbb873b6c49161fb72609a09c79b1b4ef461e3f7 Binary files differnew file mode 100644 index 000000000..e48e6a16f --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/dbb873b6c49161fb72609a09c79b1b4ef461e3f7 diff --git a/fuzz/corpus/fuzz_serialization/dbee5c3fa40e7883ee26d33234ed6364cb7b3da6 b/fuzz/corpus/fuzz_serialization/dbee5c3fa40e7883ee26d33234ed6364cb7b3da6 Binary files differnew file mode 100644 index 000000000..9a8a489b0 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/dbee5c3fa40e7883ee26d33234ed6364cb7b3da6 diff --git a/fuzz/corpus/fuzz_serialization/dd735e0d38c3775492fc9d0346516eb675c47428 b/fuzz/corpus/fuzz_serialization/dd735e0d38c3775492fc9d0346516eb675c47428 Binary files differnew file mode 100644 index 000000000..62ab6fa84 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/dd735e0d38c3775492fc9d0346516eb675c47428 diff --git a/fuzz/corpus/fuzz_serialization/ddb98f7964ea51bb468c9fa93af5f11bfc072627 b/fuzz/corpus/fuzz_serialization/ddb98f7964ea51bb468c9fa93af5f11bfc072627 Binary files differnew file mode 100644 index 000000000..abdfd7984 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/ddb98f7964ea51bb468c9fa93af5f11bfc072627 diff --git a/fuzz/corpus/fuzz_serialization/e3c1912a734aa51cc75fb7e67db525f34ac1e43e b/fuzz/corpus/fuzz_serialization/e3c1912a734aa51cc75fb7e67db525f34ac1e43e new file mode 100644 index 000000000..11ecbac26 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/e3c1912a734aa51cc75fb7e67db525f34ac1e43e @@ -0,0 +1 @@ +{ fÝÒ¾
\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/e76108ff6580c8809875c5051c8a3df9ce8fc85a b/fuzz/corpus/fuzz_serialization/e76108ff6580c8809875c5051c8a3df9ce8fc85a Binary files differnew file mode 100644 index 000000000..635817ced --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/e76108ff6580c8809875c5051c8a3df9ce8fc85a diff --git a/fuzz/corpus/fuzz_serialization/ebd0b9c4978407a17b7331e0562dc9ad31b29204 b/fuzz/corpus/fuzz_serialization/ebd0b9c4978407a17b7331e0562dc9ad31b29204 new file mode 100644 index 000000000..b8a9f18e7 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/ebd0b9c4978407a17b7331e0562dc9ad31b29204 @@ -0,0 +1 @@ +Yö
\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/f0ab531075130e5e92df690fa7311dafed5b43bc b/fuzz/corpus/fuzz_serialization/f0ab531075130e5e92df690fa7311dafed5b43bc Binary files differnew file mode 100644 index 000000000..cd1a4b19d --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/f0ab531075130e5e92df690fa7311dafed5b43bc diff --git a/fuzz/corpus/fuzz_serialization/f0b7597e0a424ca259bbd593ebf179789dbc0c09 b/fuzz/corpus/fuzz_serialization/f0b7597e0a424ca259bbd593ebf179789dbc0c09 Binary files differnew file mode 100644 index 000000000..f6e04204a --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/f0b7597e0a424ca259bbd593ebf179789dbc0c09 diff --git a/fuzz/corpus/fuzz_serialization/f573e80e11c969b592809f357dc72eb3caf356dd b/fuzz/corpus/fuzz_serialization/f573e80e11c969b592809f357dc72eb3caf356dd new file mode 100644 index 000000000..d01f29155 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/f573e80e11c969b592809f357dc72eb3caf356dd @@ -0,0 +1 @@ +âß
\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/f69a22307982dab12f462040e386daba86052e2c b/fuzz/corpus/fuzz_serialization/f69a22307982dab12f462040e386daba86052e2c Binary files differnew file mode 100644 index 000000000..66f59bcc7 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/f69a22307982dab12f462040e386daba86052e2c diff --git a/fuzz/corpus/fuzz_serialization/f82023faffb3b3e67d5d587caa6b53ab10f27fb6 b/fuzz/corpus/fuzz_serialization/f82023faffb3b3e67d5d587caa6b53ab10f27fb6 Binary files differnew file mode 100644 index 000000000..ef957661e --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/f82023faffb3b3e67d5d587caa6b53ab10f27fb6 diff --git a/fuzz/corpus/fuzz_serialization/fa30ba2c9565dcccb091ade5dbab902e0cf0c3b4 b/fuzz/corpus/fuzz_serialization/fa30ba2c9565dcccb091ade5dbab902e0cf0c3b4 Binary files differnew file mode 100644 index 000000000..5a9a0ba70 --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/fa30ba2c9565dcccb091ade5dbab902e0cf0c3b4 diff --git a/fuzz/corpus/fuzz_serialization/fab44564f0279bbfeddbbdfe97a92b882d7a3e9c b/fuzz/corpus/fuzz_serialization/fab44564f0279bbfeddbbdfe97a92b882d7a3e9c new file mode 100644 index 000000000..ee74b00ff --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/fab44564f0279bbfeddbbdfe97a92b882d7a3e9c @@ -0,0 +1 @@ +}œ„–DŽ™ãƒÁa‘§óšP¨»Ù04
\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/fafe20628a68c12b150c9af37e24c36f74672288 b/fuzz/corpus/fuzz_serialization/fafe20628a68c12b150c9af37e24c36f74672288 new file mode 100644 index 000000000..df599fbaa --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/fafe20628a68c12b150c9af37e24c36f74672288 @@ -0,0 +1 @@ +Ü
\ No newline at end of file diff --git a/fuzz/corpus/fuzz_serialization/fed40fead812cb12d7906402be2efb5a39ff84c6 b/fuzz/corpus/fuzz_serialization/fed40fead812cb12d7906402be2efb5a39ff84c6 Binary files differnew file mode 100644 index 000000000..41850354d --- /dev/null +++ b/fuzz/corpus/fuzz_serialization/fed40fead812cb12d7906402be2efb5a39ff84c6 diff --git a/fuzz/fuzz_serialization.cpp b/fuzz/fuzz_serialization.cpp new file mode 100644 index 000000000..45596e742 --- /dev/null +++ b/fuzz/fuzz_serialization.cpp @@ -0,0 +1,139 @@ +#include "ndpi_api.h" +#include "fuzz_common_code.h" + +#include <stdint.h> +#include <stdio.h> +#include <assert.h> +#include "fuzzer/FuzzedDataProvider.h" + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { + FuzzedDataProvider fuzzed_data(data, size); + u_int16_t i, num_iteration; + ndpi_serializer serializer, serializer_cloned, deserializer; + ndpi_serialization_format fmt; + int rc; + std::vector<char>d; + char kbuf[32]; + u_int32_t buffer_len; + + /* To allow memory allocation failures */ + fuzz_set_alloc_callbacks_and_seed(size); + + fmt = static_cast<ndpi_serialization_format>(fuzzed_data.ConsumeIntegralInRange(1, 3)); + + if (fuzzed_data.ConsumeBool()) + rc = ndpi_init_serializer(&serializer, fmt); + else + rc = ndpi_init_serializer_ll(&serializer, fmt, fuzzed_data.ConsumeIntegralInRange(0, 64)); + + if (rc != 0) + return 0; + + if (fmt == ndpi_serialization_format_csv) + ndpi_serializer_set_csv_separator(&serializer, ','); + + num_iteration = fuzzed_data.ConsumeIntegralInRange(0, 16); + for (i = 0; i < num_iteration; i++) { + memset(kbuf, '\0', sizeof(kbuf)); /* It is also used as binary key */ + snprintf(kbuf, sizeof(kbuf), "Key %d", i); + + ndpi_serialize_uint32_uint32(&serializer, i, fuzzed_data.ConsumeIntegral<u_int32_t>()); + ndpi_serialize_uint32_int32(&serializer, i, fuzzed_data.ConsumeIntegral<int32_t>()); + ndpi_serialize_uint32_uint64(&serializer, i, fuzzed_data.ConsumeIntegral<u_int64_t>()); + ndpi_serialize_uint32_int64(&serializer, i, fuzzed_data.ConsumeIntegral<int64_t>()); + ndpi_serialize_uint32_float(&serializer, i, fuzzed_data.ConsumeFloatingPoint<float>(), "%f"); + if (fmt != ndpi_serialization_format_tlv) + ndpi_serialize_uint32_double(&serializer, i, fuzzed_data.ConsumeFloatingPoint<double>(), "%lf"); + d = fuzzed_data.ConsumeBytes<char>(16); + ndpi_serialize_uint32_binary(&serializer, i, d.data(), d.size()); + ndpi_serialize_uint32_string(&serializer, i, fuzzed_data.ConsumeBytesAsString(8).c_str()); + ndpi_serialize_uint32_boolean(&serializer, i, fuzzed_data.ConsumeIntegral<int8_t>()); + + ndpi_serialize_string_uint32(&serializer, kbuf, fuzzed_data.ConsumeIntegral<u_int32_t>()); + ndpi_serialize_string_int32(&serializer, kbuf, fuzzed_data.ConsumeIntegral<int32_t>()); + ndpi_serialize_string_uint64(&serializer, kbuf, fuzzed_data.ConsumeIntegral<u_int64_t>()); + ndpi_serialize_string_int64(&serializer, kbuf, fuzzed_data.ConsumeIntegral<int64_t>()); + ndpi_serialize_string_float(&serializer, kbuf, fuzzed_data.ConsumeFloatingPoint<float>(), "%f"); + if (fmt != ndpi_serialization_format_tlv) + ndpi_serialize_string_double(&serializer, kbuf, fuzzed_data.ConsumeFloatingPoint<double>(), "%lf"); + ndpi_serialize_string_string(&serializer, kbuf, fuzzed_data.ConsumeBytesAsString(8).c_str()); + ndpi_serialize_string_boolean(&serializer, kbuf, fuzzed_data.ConsumeIntegral<int8_t>()); + + ndpi_serialize_binary_uint32(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<u_int32_t>()); + ndpi_serialize_binary_int32(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<int32_t>()); + ndpi_serialize_binary_uint64(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<u_int64_t>()); + ndpi_serialize_binary_int64(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<int64_t>()); + ndpi_serialize_binary_float(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeFloatingPoint<float>(), "%f"); + if (fmt != ndpi_serialization_format_tlv) + ndpi_serialize_binary_double(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeFloatingPoint<double>(), "%lf"); + ndpi_serialize_binary_boolean(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<int8_t>()); + d = fuzzed_data.ConsumeBytes<char>(16); + ndpi_serialize_binary_binary(&serializer, kbuf, sizeof(kbuf), d.data(), d.size()); + + if ((i & 0x3) == 0x3) + ndpi_serialize_end_of_record(&serializer); + } + + ndpi_serializer_create_snapshot(&serializer); + + if (fuzzed_data.ConsumeBool()) { + ndpi_serialize_start_of_block(&serializer, "Block"); + memset(kbuf, '\0', sizeof(kbuf)); /* It is also used as binary key */ + snprintf(kbuf, sizeof(kbuf), "K-Ignored"); + ndpi_serialize_uint32_uint32(&serializer, i, fuzzed_data.ConsumeIntegral<u_int32_t>()); + ndpi_serialize_string_string(&serializer, kbuf, fuzzed_data.ConsumeBytesAsString(8).c_str()); + ndpi_serialize_string_float(&serializer, kbuf, fuzzed_data.ConsumeFloatingPoint<float>(), "%f"); + ndpi_serialize_binary_boolean(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<int8_t>()); + ndpi_serialize_end_of_block(&serializer); + } + + if (fuzzed_data.ConsumeBool()) { + ndpi_serialize_start_of_block_uint32(&serializer, 0); + memset(kbuf, '\0', sizeof(kbuf)); /* It is also used as binary key */ + snprintf(kbuf, sizeof(kbuf), "K32-Ignored"); + ndpi_serialize_uint32_uint32(&serializer, i, fuzzed_data.ConsumeIntegral<u_int32_t>()); + ndpi_serialize_string_string(&serializer, kbuf, fuzzed_data.ConsumeBytesAsString(8).c_str()); + ndpi_serialize_string_float(&serializer, kbuf, fuzzed_data.ConsumeFloatingPoint<float>(), "%f"); + ndpi_serialize_binary_boolean(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<int8_t>()); + ndpi_serialize_end_of_block(&serializer); + } + + if (fuzzed_data.ConsumeBool()) + ndpi_serializer_rollback_snapshot(&serializer); + + if (fmt == ndpi_serialization_format_json) { + + ndpi_serialize_start_of_list(&serializer, "List"); + + num_iteration = fuzzed_data.ConsumeIntegralInRange(0, 8); + for (i = 0; i < num_iteration; i++) { + memset(kbuf, '\0', sizeof(kbuf)); /* It is also used as binary key */ + snprintf(kbuf, sizeof(kbuf), "Ignored"); + ndpi_serialize_uint32_uint32(&serializer, i, fuzzed_data.ConsumeIntegral<u_int32_t>()); + ndpi_serialize_string_string(&serializer, kbuf, fuzzed_data.ConsumeBytesAsString(8).c_str()); + ndpi_serialize_string_float(&serializer, kbuf, fuzzed_data.ConsumeFloatingPoint<float>(), "%f"); + ndpi_serialize_binary_boolean(&serializer, kbuf, sizeof(kbuf), fuzzed_data.ConsumeIntegral<int8_t>()); + } + + ndpi_serialize_end_of_list(&serializer); + ndpi_serialize_string_string(&serializer, "Last", "Ok"); + } else if (fmt == ndpi_serialization_format_csv) { + ndpi_serializer_get_header(&serializer, &buffer_len); + ndpi_serializer_get_buffer(&serializer, &buffer_len); + } else { + /* Conversion from tlv to json */ + rc = ndpi_init_deserializer(&deserializer, &serializer); + if (rc == 0) { + rc = ndpi_init_serializer_ll(&serializer_cloned, ndpi_serialization_format_json, fuzzed_data.ConsumeIntegralInRange(0, 2048)); + if (rc == 0) { + ndpi_deserialize_clone_all(&deserializer, &serializer_cloned); + ndpi_serializer_get_buffer(&serializer_cloned, &buffer_len); + ndpi_term_serializer(&serializer_cloned); + } + } + } + + ndpi_term_serializer(&serializer); + + return 0; +} diff --git a/src/include/ndpi_api.h b/src/include/ndpi_api.h index d9e48047f..9968e9eb3 100644 --- a/src/include/ndpi_api.h +++ b/src/include/ndpi_api.h @@ -1253,6 +1253,16 @@ extern "C" { * @param serializer The serializer handle * @param key The field name or ID * @param value The field value + * @param format The float value format + * @return 0 on success, a negative number otherwise + */ + int ndpi_serialize_uint32_double(ndpi_serializer *serializer, u_int32_t key, double value, const char *format /* e.f. "%.2f" */); + + /** + * Serialize a 32-bit unsigned int key and a double value + * @param serializer The serializer handle + * @param key The field name or ID + * @param value The field value * @param format The double value format * @return 0 on success, a negative number otherwise */ @@ -1277,6 +1287,16 @@ extern "C" { int ndpi_serialize_uint32_boolean(ndpi_serializer *serializer, u_int32_t key, u_int8_t value); /** + * Serialize a 32-bit unsigned int and an unterminated string value + * @param serializer The serializer handle + * @param key The field name or ID + * @param value The field value + * @param vlen The value length + * @return 0 on success, a negative number otherwise + */ + int ndpi_serialize_uint32_binary(ndpi_serializer *serializer, u_int32_t key, const char *_value, u_int16_t vlen); + + /** * Serialize an unterminated string key and a 32-bit signed int value * @param serializer The serializer handle * @param key The field name or ID diff --git a/src/lib/ndpi_serializer.c b/src/lib/ndpi_serializer.c index f8652dbc3..de7b2fd7c 100644 --- a/src/lib/ndpi_serializer.c +++ b/src/lib/ndpi_serializer.c @@ -217,7 +217,8 @@ int ndpi_init_serializer_ll(ndpi_serializer *_serializer, serializer->fmt = fmt; - if (ndpi_init_serializer_buffer(&serializer->buffer, buffer_size) != 0) + if (buffer_size < 3 || + ndpi_init_serializer_buffer(&serializer->buffer, buffer_size) != 0) return(-1); if(serializer->fmt == ndpi_serialization_format_json) { @@ -267,7 +268,7 @@ static inline int ndpi_extend_serializer_buffer(ndpi_private_serializer_buffer * new_size = buffer->size + min_len; new_size = ((new_size / 4) + 1) * 4; /* required by zmq encryption */ - r = realloc((void *) buffer->data, new_size); + r = ndpi_realloc((void *) buffer->data, buffer->size, new_size); if(r == NULL) return(-1); @@ -735,18 +736,27 @@ static inline void ndpi_serialize_json_pre(ndpi_serializer *_serializer) { /* ********************************** */ -static inline void ndpi_serialize_json_post(ndpi_serializer *_serializer) { +static inline int ndpi_serialize_json_post(ndpi_serializer *_serializer) { ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; - if(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST) + if(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST) { + if(serializer->status.buffer.size_used >= serializer->buffer.size) + return -1; serializer->buffer.data[serializer->status.buffer.size_used++] = ']'; + } + if(serializer->status.buffer.size_used >= serializer->buffer.size) + return -1; serializer->buffer.data[serializer->status.buffer.size_used++] = '}'; - if(serializer->status.flags & NDPI_SERIALIZER_STATUS_ARRAY) + if(serializer->status.flags & NDPI_SERIALIZER_STATUS_ARRAY) { + if(serializer->status.buffer.size_used >= serializer->buffer.size) + return -1; serializer->buffer.data[serializer->status.buffer.size_used++] = ']'; + } serializer->status.flags |= NDPI_SERIALIZER_STATUS_COMMA; + return 0; } /* ********************************** */ @@ -774,6 +784,7 @@ int ndpi_serialize_uint32_uint32(ndpi_serializer *_serializer, u_int32_t key, u_int32_t value) { ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; + int rc; u_int16_t needed = sizeof(u_int8_t) /* type */ + sizeof(u_int32_t) /* key */ + @@ -790,26 +801,37 @@ int ndpi_serialize_uint32_uint32(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%u", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%u", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { ndpi_serialization_type kt; u_int8_t type = 0; @@ -846,6 +868,7 @@ int ndpi_serialize_uint32_uint64(ndpi_serializer *_serializer, sizeof(u_int8_t) /* type */ + sizeof(u_int32_t) /* key */ + sizeof(u_int64_t); + int rc; if(serializer->fmt == ndpi_serialization_format_json) needed += 32; @@ -858,26 +881,37 @@ int ndpi_serialize_uint32_uint64(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_U64_FORMAT, (unsigned long long)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_U64_FORMAT, (unsigned long long)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { if(value <= 0xffffffff) { return(ndpi_serialize_uint32_uint32(_serializer, key, value)); @@ -910,6 +944,7 @@ int ndpi_serialize_uint32_int32(ndpi_serializer *_serializer, sizeof(u_int8_t) /* type */ + sizeof(u_int32_t) /* key */ + sizeof(int32_t); + int rc; if(serializer->fmt == ndpi_serialization_format_json) needed += 24; @@ -922,26 +957,37 @@ int ndpi_serialize_uint32_int32(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%d", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%d", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { ndpi_serialization_type kt; u_int8_t type = 0; @@ -978,6 +1024,7 @@ int ndpi_serialize_uint32_int64(ndpi_serializer *_serializer, sizeof(u_int8_t) /* type */ + sizeof(u_int32_t) /* key */ + sizeof(int64_t); + int rc; if(serializer->fmt == ndpi_serialization_format_json) needed += 32; @@ -990,26 +1037,37 @@ int ndpi_serialize_uint32_int64(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_I64_FORMAT, (long long int)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_I64_FORMAT, (long long int)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { if((value & 0xFFFFFFFF) == value) { @@ -1043,7 +1101,9 @@ int ndpi_serialize_uint32_float(ndpi_serializer *_serializer, u_int16_t needed = sizeof(u_int8_t) /* type */ + sizeof(u_int32_t) /* key */ + - sizeof(float); + sizeof(float) + + 32; /* Safety, because printing float might lead to LONG string */ + int rc; if(serializer->fmt == ndpi_serialization_format_json) needed += 32; @@ -1056,20 +1116,31 @@ int ndpi_serialize_uint32_float(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { ndpi_serialization_type kt; @@ -1091,8 +1162,81 @@ int ndpi_serialize_uint32_float(ndpi_serializer *_serializer, /* ********************************** */ -static int ndpi_serialize_uint32_binary(ndpi_serializer *_serializer, - u_int32_t key, const char *value, u_int16_t slen) { +int ndpi_serialize_uint32_double(ndpi_serializer *_serializer, + u_int32_t key, double value, + const char *format /* e.f. "%.2f" */) { + ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; + u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; + u_int16_t needed = + sizeof(u_int8_t) /* type */ + + sizeof(u_int32_t) /* key */ + + sizeof(double) + + 32; /* Safety, because printing double might lead to LONG string */ + int rc; + + if(serializer->fmt == ndpi_serialization_format_json) + needed += 32; + + if(buff_diff < needed) { + if(ndpi_extend_serializer_buffer(&serializer->buffer, needed - buff_diff) < 0) + return(-1); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; + } + + if(serializer->fmt == ndpi_serialization_format_json) { + ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; + + if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; + } + + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; + + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); + } else if(serializer->fmt == ndpi_serialization_format_csv) { + if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); + ndpi_serialize_csv_pre(serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; + + } else { +#if 1 + fprintf(stderr, "TLV serializer does not support double\n"); +#else + ndpi_serialization_type kt; + u_int8_t type = 0; + u_int32_t type_offset = serializer->status.buffer.size_used++; + + kt = ndpi_serialize_key_uint32(serializer, key); + type = (kt << 4); + + ndpi_serialize_single_float(serializer, value); + type |= ndpi_serialization_double; + + serializer->buffer.data[type_offset] = type; +#endif + } + + serializer->status.flags |= NDPI_SERIALIZER_STATUS_NOT_EMPTY; + return(0); +} + +/* ********************************** */ + +int ndpi_serialize_uint32_binary(ndpi_serializer *_serializer, + u_int32_t key, const char *value, u_int16_t slen) { ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed = @@ -1100,6 +1244,7 @@ static int ndpi_serialize_uint32_binary(ndpi_serializer *_serializer, sizeof(u_int32_t) /* key */ + sizeof(u_int16_t) /* len */ + slen; + int rc; if(serializer->fmt == ndpi_serialization_format_json) needed += 24 + slen; @@ -1112,23 +1257,31 @@ static int ndpi_serialize_uint32_binary(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } serializer->status.buffer.size_used += ndpi_json_string_escape(value, slen, (char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) - &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, - "%s", value); + rc = ndpi_snprintf((char *) + &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, + "%.*s", slen, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { ndpi_serialization_type kt; u_int8_t type = 0; @@ -1162,6 +1315,7 @@ int ndpi_serialize_uint32_boolean(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed = 24; + int rc; if(serializer->fmt != ndpi_serialization_format_json && serializer->fmt != ndpi_serialization_format_csv) @@ -1175,26 +1329,37 @@ int ndpi_serialize_uint32_boolean(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "\"%u\":", key); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%s", value ? "true" : "false"); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_uint32(serializer, key) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%s", value ? "true" : "false"); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } serializer->status.flags |= NDPI_SERIALIZER_STATUS_NOT_EMPTY; @@ -1209,6 +1374,7 @@ int ndpi_serialize_binary_int32(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; #ifdef OPTIMIZE_NUMERIC_KEYS if(ndpi_is_number(key, klen)) @@ -1232,6 +1398,7 @@ int ndpi_serialize_binary_int32(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1241,17 +1408,24 @@ int ndpi_serialize_binary_int32(ndpi_serializer *_serializer, buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%d", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, klen) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%d", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { if(value <= 127 && value >= -128) { serializer->buffer.data[serializer->status.buffer.size_used++] = (ndpi_serialization_string << 4) | ndpi_serialization_int8; @@ -1304,8 +1478,9 @@ int ndpi_serialize_string_int32(ndpi_serializer *_serializer, rc = ndpi_snprintf((char*)&serializer->buffer.data[serializer->status.buffer.size_used], needed, "%u", value); - if(rc > 0) - serializer->status.buffer.size_used += rc; + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; return(0); } else #endif @@ -1320,6 +1495,7 @@ int ndpi_serialize_binary_int64(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; #ifdef OPTIMIZE_NUMERIC_KEYS if(ndpi_is_number(key, klen)) @@ -1330,7 +1506,7 @@ int ndpi_serialize_binary_int64(ndpi_serializer *_serializer, sizeof(u_int8_t) /* type */ + sizeof(u_int16_t) /* key len */ + klen /* key */ + - sizeof(u_int32_t); + sizeof(u_int64_t); if(serializer->fmt == ndpi_serialization_format_json) needed += 16 + klen; @@ -1343,6 +1519,7 @@ int ndpi_serialize_binary_int64(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1353,17 +1530,24 @@ int ndpi_serialize_binary_int64(ndpi_serializer *_serializer, buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_I64_FORMAT, (long long int)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, klen) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_I64_FORMAT, (long long int)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { if ((value & 0xFFFFFFFF) == value) { return(ndpi_serialize_string_int32(_serializer, key, value)); @@ -1392,6 +1576,7 @@ int ndpi_serialize_binary_uint32(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; #ifdef OPTIMIZE_CSV_SERIALIZATION if(serializer->fmt == ndpi_serialization_format_csv) { @@ -1444,6 +1629,7 @@ int ndpi_serialize_binary_uint32(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1454,18 +1640,25 @@ int ndpi_serialize_binary_uint32(ndpi_serializer *_serializer, buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) - &serializer->buffer.data[serializer->status.buffer.size_used], - buff_diff, "%u", value); + rc = ndpi_snprintf((char *) + &serializer->buffer.data[serializer->status.buffer.size_used], + buff_diff, "%u", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, klen) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) - &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, - "%u", value); + rc = ndpi_snprintf((char *) + &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, + "%u", value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { if(value <= 0xff) { serializer->buffer.data[serializer->status.buffer.size_used++] = (ndpi_serialization_string << 4) | ndpi_serialization_uint8; @@ -1523,6 +1716,7 @@ int ndpi_serialize_binary_uint64(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; #ifdef OPTIMIZE_NUMERIC_KEYS if(ndpi_is_number(key, klen)) @@ -1536,7 +1730,7 @@ int ndpi_serialize_binary_uint64(ndpi_serializer *_serializer, sizeof(u_int64_t); if(serializer->fmt == ndpi_serialization_format_json) - needed += 32 + klen; + needed += 16 + klen; if(buff_diff < needed) { if(ndpi_extend_serializer_buffer(&serializer->buffer, needed - buff_diff) < 0) @@ -1546,6 +1740,7 @@ int ndpi_serialize_binary_uint64(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1556,18 +1751,25 @@ int ndpi_serialize_binary_uint64(ndpi_serializer *_serializer, buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_U64_FORMAT, (unsigned long long)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, klen) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, NDPI_U64_FORMAT, (unsigned long long)value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { if(value <= 0xffffffff) { return(ndpi_serialize_string_uint32(_serializer, key, value)); @@ -1599,6 +1801,7 @@ int ndpi_serialize_binary_float(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; #ifdef OPTIMIZE_NUMERIC_KEYS if(ndpi_is_number(key, klen)) @@ -1609,7 +1812,8 @@ int ndpi_serialize_binary_float(ndpi_serializer *_serializer, sizeof(u_int8_t) /* type */ + sizeof(u_int16_t) /* key len */ + klen /* key */ + - sizeof(float); + sizeof(float) + + 32; /* Safety, because printing float might lead to LONG string */ if(serializer->fmt == ndpi_serialization_format_json) needed += 32 + klen; @@ -1622,6 +1826,7 @@ int ndpi_serialize_binary_float(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1631,14 +1836,21 @@ int ndpi_serialize_binary_float(ndpi_serializer *_serializer, buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, klen) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { serializer->buffer.data[serializer->status.buffer.size_used++] = (ndpi_serialization_string << 4) | ndpi_serialization_float; @@ -1661,12 +1873,14 @@ int ndpi_serialize_binary_double(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; needed = sizeof(u_int8_t) /* type */ + sizeof(u_int16_t) /* key len */ + klen /* key */ + - sizeof(double); + sizeof(double) + + 32; /* Safety, because printing double might lead to LONG string */ if(serializer->fmt == ndpi_serialization_format_json) needed += 32 + klen; @@ -1679,6 +1893,7 @@ int ndpi_serialize_binary_double(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1688,14 +1903,21 @@ int ndpi_serialize_binary_double(ndpi_serializer *_serializer, buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, klen) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, format, value); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } else { #if 1 fprintf(stderr, "TLV serializer does not support double\n"); @@ -1761,6 +1983,7 @@ static int ndpi_serialize_binary_raw(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1778,7 +2001,8 @@ static int ndpi_serialize_binary_raw(ndpi_serializer *_serializer, serializer->status.buffer.size_used += vlen; } - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, klen) < 0) return(-1); ndpi_serialize_csv_pre(serializer); @@ -1886,6 +2110,7 @@ int ndpi_serialize_binary_boolean(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; if(serializer->fmt != ndpi_serialization_format_json && serializer->fmt != ndpi_serialization_format_csv) @@ -1906,6 +2131,7 @@ int ndpi_serialize_binary_boolean(ndpi_serializer *_serializer, if(serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; if (!(serializer->status.flags & NDPI_SERIALIZER_STATUS_LIST)) { serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, @@ -1915,17 +2141,24 @@ int ndpi_serialize_binary_boolean(ndpi_serializer *_serializer, buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; } - serializer->status.buffer.size_used += ndpi_snprintf((char *) + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%s", value ? "true" : "false"); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else if(serializer->fmt == ndpi_serialization_format_csv) { if (ndpi_serializer_header_string(serializer, key, strlen(key)) < 0) return(-1); ndpi_serialize_csv_pre(serializer); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, "%s", value ? "true" : "false"); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; } serializer->status.flags |= NDPI_SERIALIZER_STATUS_NOT_EMPTY; @@ -1946,6 +2179,7 @@ int ndpi_serialize_start_of_list_binary(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; if(serializer->fmt != ndpi_serialization_format_json && serializer->fmt != ndpi_serialization_format_tlv) @@ -1961,17 +2195,22 @@ int ndpi_serialize_start_of_list_binary(ndpi_serializer *_serializer, if (serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, (char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, ": ["); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, ": ["); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; serializer->status.flags |= NDPI_SERIALIZER_STATUS_LIST | NDPI_SERIALIZER_STATUS_SOL; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else { serializer->buffer.data[serializer->status.buffer.size_used++] = ndpi_serialization_start_of_list; ndpi_serialize_single_string(serializer, key, klen); @@ -2021,6 +2260,7 @@ int ndpi_serialize_start_of_block_binary(ndpi_serializer *_serializer, ndpi_private_serializer *serializer = (ndpi_private_serializer*)_serializer; u_int32_t buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; u_int32_t needed; + int rc; if(serializer->fmt != ndpi_serialization_format_json && serializer->fmt != ndpi_serialization_format_tlv) @@ -2036,12 +2276,18 @@ int ndpi_serialize_start_of_block_binary(ndpi_serializer *_serializer, if (serializer->fmt == ndpi_serialization_format_json) { ndpi_serialize_json_pre(_serializer); + buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; + serializer->status.buffer.size_used += ndpi_json_string_escape(key, klen, (char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff); buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - serializer->status.buffer.size_used += ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, ": {"); + rc = ndpi_snprintf((char *) &serializer->buffer.data[serializer->status.buffer.size_used], buff_diff, ": {"); + if(rc < 0 || (u_int)rc >= buff_diff) + return(-1); + serializer->status.buffer.size_used += rc; buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); serializer->status.flags |= NDPI_SERIALIZER_STATUS_SOB; } else /* ndpi_serialization_format_tlv */ { @@ -2104,7 +2350,8 @@ int ndpi_serialize_end_of_block(ndpi_serializer *_serializer) { serializer->status.flags &= ~NDPI_SERIALIZER_STATUS_SOB; // buff_diff = serializer->buffer.size - serializer->status.buffer.size_used; - ndpi_serialize_json_post(_serializer); + if(ndpi_serialize_json_post(_serializer) != 0) + return(-1); } else { serializer->buffer.data[serializer->status.buffer.size_used++] = ndpi_serialization_end_of_block; } diff --git a/tests/unit/unit.c b/tests/unit/unit.c index 440ffadf4..5212c768e 100644 --- a/tests/unit/unit.c +++ b/tests/unit/unit.c @@ -65,7 +65,7 @@ static int verbose = 0; #define FLT_MAX 3.402823466e+38F int serializerUnitTest() { - ndpi_serializer serializer, deserializer; + ndpi_serializer serializer, serializer_cloned, deserializer; int i, loop_id; ndpi_serialization_format fmt = {0}; u_int32_t buffer_len; @@ -74,6 +74,7 @@ int serializerUnitTest() { json_object *j; memset(&serializer, 0, sizeof(serializer)); + memset(&serializer_cloned, 0, sizeof(serializer_cloned)); memset(&deserializer, 0, sizeof(deserializer)); for(loop_id=0; loop_id<3; loop_id++) { @@ -234,6 +235,18 @@ int serializerUnitTest() { ndpi_deserialize_next(&deserializer); } + + /* Converting from TLV to JSON */ + + assert(ndpi_init_deserializer(&deserializer, &serializer) != -1); + assert(ndpi_init_serializer(&serializer_cloned, ndpi_serialization_format_json) != -1); + assert(ndpi_deserialize_clone_all(&deserializer, &serializer_cloned) == 0); + + buffer = ndpi_serializer_get_buffer(&serializer_cloned, &buffer_len); + if(verbose) + printf("TLV->JSON: %s\n", buffer); + + ndpi_term_serializer(&serializer_cloned); } ndpi_term_serializer(&serializer); |