Squashed 'external/toxcore/c-toxcore/' changes from 82460b2124..38e4c82fe0

38e4c82fe0 feat: add ngc events
8099d82397 diagnostic: get the number of close dht nodes with announce/store support
d01c116764 cleanup: make it more clear that assert and uint32_t increment both only exist if NDEBUG is not defined
58fac53429 refactor: Add a `bin_unpack_bin_max` for max-length arrays.
6be29f01e5 chore: Add more logging to loading conferences from savedata.
1195271b7f Fix inversed return values
82276ef5ac cleanup: Fix GCC compatibility.
REVERT: 82460b2124 feat: add ngc events

git-subtree-dir: external/toxcore/c-toxcore
git-subtree-split: 38e4c82fe0fc373b9d43ee9ad2b8fe5fd1d26810

.circleci/bazel-test

@@ -4,11 +4,9 @@ set -eux
 
 git submodule update --init --recursive
 /src/workspace/tools/inject-repo c-toxcore
+# TODO(iphydf): Re-enable fuzz-test when https://github.com/tweag/rules_nixpkgs/issues/442 is fixed.
 cd /src/workspace && bazel test -k \
-  --config=remote \
-  --build_tag_filters=-haskell \
-  --test_tag_filters=-haskell \
-  --remote_download_minimal \
+  --build_tag_filters=-haskell,-fuzz-test \
+  --test_tag_filters=-haskell,-fuzz-test \
   -- \
-  //c-toxcore/... \
   "$@"

.circleci/config.yml

@@ -7,11 +7,11 @@ workflows:
     jobs:
       # Dynamic analysis in the Bazel build
       - bazel-asan
+      - bazel-msan
       - bazel-tsan
       # Dynamic analysis with CMake
       - asan
       - tsan
-      - msan
       - ubsan
       # Static analysis
       - clang-analyze
@@ -29,6 +29,7 @@ jobs:
     steps:
       - checkout
       - run: .circleci/bazel-test
+          //c-toxcore/...
 
   bazel-tsan:
     working_directory: /tmp/cirrus-ci-build
@@ -38,11 +39,22 @@ jobs:
     steps:
       - checkout
       - run: .circleci/bazel-test
+          //c-toxcore/...
           -//c-toxcore/auto_tests:conference_av_test
           -//c-toxcore/auto_tests:conference_test
           -//c-toxcore/auto_tests:onion_test
           -//c-toxcore/auto_tests:tox_many_test
 
+  bazel-msan:
+    working_directory: /tmp/cirrus-ci-build
+    docker:
+      - image: toxchat/toktok-stack:latest-msan
+
+    steps:
+      - checkout
+      - run: .circleci/bazel-test
+          //c-toxcore/auto_tests:lossless_packet_test
+
   asan:
     working_directory: ~/work
     docker:
@@ -91,21 +103,6 @@ jobs:
       - run: git submodule update --init --recursive
       - run: CC=clang .circleci/cmake-ubsan
 
-  msan:
-    working_directory: ~/work
-    docker:
-      - image: toxchat/toktok-stack:latest-msan
-
-    steps:
-      - checkout
-      - run: git submodule update --init --recursive
-      - run: rm -rf /src/workspace/c-toxcore/* && mv * /src/workspace/c-toxcore/
-      - run:
-          cd /src/workspace && bazel test
-            //c-toxcore/auto_tests:lossless_packet_test
-            //c-toxcore/toxav/...
-            //c-toxcore/toxcore/...
-
   infer:
     working_directory: ~/work
     docker:

.cirrus.yml

@@ -9,10 +9,9 @@ bazel-opt_task:
     - /src/workspace/tools/inject-repo c-toxcore
   test_all_script:
     - cd /src/workspace && bazel test -k
-        --remote_http_cache=http://$CIRRUS_HTTP_CACHE_HOST
+        --config=ci
         --build_tag_filters=-haskell
         --test_tag_filters=-haskell
-        --remote_download_minimal
         --
         //c-toxcore/...
         -//c-toxcore/auto_tests:tcp_relay_test # TODO(robinlinden): Why does this pass locally but not in Cirrus?
@@ -27,10 +26,9 @@ bazel-dbg_task:
     - /src/workspace/tools/inject-repo c-toxcore
   test_all_script:
     - cd /src/workspace && bazel test -k
-        --remote_http_cache=http://$CIRRUS_HTTP_CACHE_HOST
+        --config=ci
         --build_tag_filters=-haskell
         --test_tag_filters=-haskell
-        --remote_download_minimal
         --
         //c-toxcore/...
         -//c-toxcore/auto_tests:tcp_relay_test # TODO(robinlinden): Why does this pass locally but not in Cirrus?
@@ -45,7 +43,7 @@ cimple_task:
     - /src/workspace/tools/inject-repo c-toxcore
   test_all_script:
     - cd /src/workspace && bazel test -k
-        --remote_http_cache=http://$CIRRUS_HTTP_CACHE_HOST
+        --config=ci
         --build_tag_filters=haskell
         --test_tag_filters=haskell
         --

auto_tests/BUILD.bazel

@@ -29,12 +29,26 @@ flaky_tests = {
     "tox_many_tcp_test": True,
 }
 
+extra_args = {
+    "proxy_test": ["$(location //c-toxcore/other/proxy)"],
+}
+
+extra_data = {
+    "proxy_test": ["//c-toxcore/other/proxy"],
+}
+
 [cc_test(
     name = src[:-2],
     size = "small",
     srcs = [src],
-    args = ["$(location %s)" % src] + ["$(location //c-toxcore/other/proxy)"],
-    data = glob(["data/*"]) + ["//c-toxcore/other/proxy"],
+    args = ["$(location %s)" % src] + extra_args.get(
+        src[:-2],
+        [],
+    ),
+    data = glob(["data/*"]) + extra_data.get(
+        src[:-2],
+        [],
+    ),
     flaky = flaky_tests.get(
         src[:-2],
         False,

auto_tests/dht_getnodes_api_test.c

@@ -122,6 +122,12 @@ static void test_dht_getnodes(AutoTox *autotoxes)
 
         tox_self_get_dht_id(autotoxes[i].tox, public_key_list[i]);
         tox_callback_dht_get_nodes_response(autotoxes[i].tox, getnodes_response_cb);
+
+        printf("Peer %zu dht closenode count total/annouce-capable: %d/%d\n",
+            i,
+            tox_dht_get_num_closelist(autotoxes[i].tox),
+            tox_dht_get_num_closelist_announce_capable(autotoxes[i].tox)
+        );
     }
 
     while (!all_nodes_crawled(autotoxes, NUM_TOXES, public_key_list)) {

other/bootstrap_daemon/docker/tox-bootstrapd.sha256

@@ -1 +1 @@
-4f5b47978dc26aed78719526f862a44693f821db12f5ff6d70b338d67fb6f784  /usr/local/bin/tox-bootstrapd
+9bec65f2a3093ebb49c3751dfad267482bc80d4b29ef9171f11d5ba53058d713  /usr/local/bin/tox-bootstrapd

testing/fuzzing/BUILD.bazel

@@ -28,7 +28,7 @@ cc_library(
 
 cc_fuzz_test(
     name = "bootstrap_fuzz_test",
-    #size = "small",
+    size = "small",
     srcs = ["bootstrap_harness.cc"],
     copts = ["-UNDEBUG"],
     corpus = ["//tools/toktok-fuzzer/corpus:bootstrap_fuzzer"],
@@ -43,7 +43,7 @@ cc_fuzz_test(
 
 cc_fuzz_test(
     name = "e2e_fuzz_test",
-    #size = "small",
+    size = "small",
     srcs = ["e2e_fuzz_test.cc"],
     copts = ["-UNDEBUG"],
     corpus = ["//tools/toktok-fuzzer/corpus:e2e_fuzz_test"],
@@ -59,7 +59,7 @@ cc_fuzz_test(
 
 cc_fuzz_test(
     name = "toxsave_fuzz_test",
-    #size = "small",
+    size = "small",
     srcs = ["toxsave_harness.cc"],
     copts = ["-UNDEBUG"],
     corpus = ["//tools/toktok-fuzzer/corpus:toxsave_fuzzer"],
@@ -92,7 +92,7 @@ fuzzing_binary(
 
 cc_fuzz_test(
     name = "protodump_reduce",
-    #size = "small",
+    size = "small",
     srcs = ["protodump_reduce.cc"],
     copts = ["-UNDEBUG"],
     deps = [

testing/fuzzing/fuzz_support.cc

@@ -22,6 +22,8 @@
 
 const bool DEBUG = false;
 
+static constexpr tox_mono_time_cb *get_self_clock = ![](Fuzz_System *self) { return self->clock; };
+
 // TODO(iphydf): Put this somewhere shared.
 struct Network_Addr {
     struct sockaddr_storage addr;
@@ -182,7 +184,7 @@ Fuzz_System::Fuzz_System(Fuzz_Data &input)
     }
     , data(input)
 {
-    sys->mono_time_callback = ![](Fuzz_System *self) { return self->clock; };
+    sys->mono_time_callback = get_self_clock;
     sys->mono_time_user_data = this;
     sys->mem = mem.get();
     sys->ns = ns.get();
@@ -269,7 +271,7 @@ Null_System::Null_System()
         std::make_unique<Random>(Random{&null_random_funcs, this}),
     }
 {
-    sys->mono_time_callback = ![](Fuzz_System *self) { return self->clock; };
+    sys->mono_time_callback = get_self_clock;
     sys->mono_time_user_data = this;
     sys->mem = mem.get();
     sys->ns = ns.get();
@@ -400,7 +402,7 @@ Record_System::Record_System(Global &global, uint64_t seed, const char *name)
     , seed_(seed)
     , name_(name)
 {
-    sys->mono_time_callback = ![](Fuzz_System *self) { return self->clock; };
+    sys->mono_time_callback = get_self_clock;
     sys->mono_time_user_data = this;
     sys->mem = mem.get();
     sys->ns = ns.get();

toxcore/DHT.c

@@ -533,8 +533,8 @@ int pack_nodes(const Logger *logger, uint8_t *data, uint16_t length, const Node_
 
 #ifndef NDEBUG
         const uint32_t increment = ipp_size + CRYPTO_PUBLIC_KEY_SIZE;
-#endif
         assert(increment == PACKED_NODE_SIZE_IP4 || increment == PACKED_NODE_SIZE_IP6);
+#endif
     }
 
     return packed_length;
@@ -565,8 +565,8 @@ int unpack_nodes(Node_format *nodes, uint16_t max_num_nodes, uint16_t *processed
 
 #ifndef NDEBUG
         const uint32_t increment = ipp_size + CRYPTO_PUBLIC_KEY_SIZE;
-#endif
         assert(increment == PACKED_NODE_SIZE_IP4 || increment == PACKED_NODE_SIZE_IP6);
+#endif
     }
 
     if (processed_data_len != nullptr) {
@@ -2965,6 +2965,34 @@ bool dht_non_lan_connected(const DHT *dht)
     return false;
 }
 
+uint16_t dht_get_num_closelist(const DHT *dht) {
+    uint16_t num_valid_close_clients = 0;
+    for (uint32_t i = 0; i < LCLIENT_LIST; ++i) {
+        const Client_data *const client = dht_get_close_client(dht, i);
+
+        // check if client is valid
+        if (!(assoc_timeout(dht->cur_time, &client->assoc4) && assoc_timeout(dht->cur_time, &client->assoc6))) {
+            ++num_valid_close_clients;
+        }
+    }
+
+    return num_valid_close_clients;
+}
+
+uint16_t dht_get_num_closelist_announce_capable(const DHT *dht) {
+    uint16_t num_valid_close_clients_with_cap = 0;
+    for (uint32_t i = 0; i < LCLIENT_LIST; ++i) {
+        const Client_data *const client = dht_get_close_client(dht, i);
+
+        // check if client is valid
+        if (!(assoc_timeout(dht->cur_time, &client->assoc4) && assoc_timeout(dht->cur_time, &client->assoc6)) && client->announce_node) {
+            ++num_valid_close_clients_with_cap;
+        }
+    }
+
+    return num_valid_close_clients_with_cap;
+}
+
 unsigned int ipport_self_copy(const DHT *dht, IP_Port *dest)
 {
     ipport_reset(dest);

toxcore/DHT.h

@@ -515,6 +515,24 @@ bool dht_isconnected(const DHT *dht);
 non_null()
 bool dht_non_lan_connected(const DHT *dht);
 
+/**
+ * This function returns the ratio of close dht nodes that are known to support announce/store.
+ * This function returns the number of DHT nodes in the closelist.
+ *
+ * @return number
+ */
+non_null()
+uint16_t dht_get_num_closelist(const DHT *dht);
+
+/**
+ * This function returns the number of DHT nodes in the closelist,
+ * that are capable to store annouce data (introduced in version 0.2.18).
+ *
+ * @return number
+ */
+non_null()
+uint16_t dht_get_num_closelist_announce_capable(const DHT *dht);
+
 /** @brief Attempt to add client with ip_port and public_key to the friends client list
  * and close_clientlist.
  *

toxcore/Messenger.c

@@ -2988,6 +2988,7 @@ static State_Load_Status load_nospam_keys(Messenger *m, const uint8_t *data, uin
     load_secret_key(m->net_crypto, data + sizeof(uint32_t) + CRYPTO_PUBLIC_KEY_SIZE);
 
     if (!pk_equal(data + sizeof(uint32_t), nc_get_self_public_key(m->net_crypto))) {
+        LOGGER_ERROR(m->log, "public key stored in savedata does not match its secret key");
         return STATE_LOAD_STATUS_ERROR;
     }
 
@@ -3219,9 +3220,13 @@ static State_Load_Status groups_load(Messenger *m, const uint8_t *data, uint32_t
 
         if (group_number < 0) {
             LOGGER_WARNING(m->log, "Failed to load group %u", i);
+            // Can't recover trivially. We may need to skip over some data here.
+            break;
         }
     }
 
+    LOGGER_DEBUG(m->log, "Successfully loaded %u groups", gc_count_groups(m->group_handler));
+
     bin_unpack_free(bu);
 
     return STATE_LOAD_STATUS_CONTINUE;

toxcore/bin_unpack.c

@@ -73,10 +73,14 @@ bool bin_unpack_array(Bin_Unpack *bu, uint32_t *size)
     return cmp_read_array(&bu->ctx, size) && *size <= bu->bytes_size;
 }
 
-bool bin_unpack_array_fixed(Bin_Unpack *bu, uint32_t required_size)
+bool bin_unpack_array_fixed(Bin_Unpack *bu, uint32_t required_size, uint32_t *actual_size)
 {
-    uint32_t size;
-    return cmp_read_array(&bu->ctx, &size) && size == required_size;
+    uint32_t size = 0;
+    const bool success = cmp_read_array(&bu->ctx, &size) && size == required_size;
+    if (actual_size != nullptr) {
+        *actual_size = size;
+    }
+    return success;
 }
 
 bool bin_unpack_bool(Bin_Unpack *bu, bool *val)
@@ -128,6 +132,18 @@ bool bin_unpack_bin(Bin_Unpack *bu, uint8_t **data_ptr, uint32_t *data_length_pt
     return true;
 }
 
+bool bin_unpack_bin_max(Bin_Unpack *bu, uint8_t *data, uint16_t *data_length_ptr, uint16_t max_data_length)
+{
+    uint32_t bin_size;
+    if (!bin_unpack_bin_size(bu, &bin_size) || bin_size > max_data_length) {
+        return false;
+    }
+
+    *data_length_ptr = bin_size;
+
+    return bin_unpack_bin_b(bu, data, bin_size);
+}
+
 bool bin_unpack_bin_fixed(Bin_Unpack *bu, uint8_t *data, uint32_t data_length)
 {
     uint32_t bin_size;

toxcore/bin_unpack.h

@@ -45,10 +45,14 @@ void bin_unpack_free(Bin_Unpack *bu);
 non_null() bool bin_unpack_array(Bin_Unpack *bu, uint32_t *size);
 
 /** @brief Start unpacking a fixed size MessagePack array.
+ *
+ * Fails if the array size is not the required size. If `actual_size` is passed a non-null
+ * pointer, the array size is written there.
  *
  * @retval false if the packed array size is not exactly the required size.
  */
-non_null() bool bin_unpack_array_fixed(Bin_Unpack *bu, uint32_t required_size);
+non_null(1) nullable(3)
+bool bin_unpack_array_fixed(Bin_Unpack *bu, uint32_t required_size, uint32_t *actual_size);
 
 /** @brief Unpack a MessagePack bool. */
 non_null() bool bin_unpack_bool(Bin_Unpack *bu, bool *val);
@@ -71,10 +75,16 @@ non_null() bool bin_unpack_nil(Bin_Unpack *bu);
  * large allocation unless the input array was already that large.
  */
 non_null() bool bin_unpack_bin(Bin_Unpack *bu, uint8_t **data_ptr, uint32_t *data_length_ptr);
+/** @brief Unpack a variable size MessagePack bin into a fixed size byte array.
+ *
+ * Stores unpacked data into `data` with its length stored in `data_length_ptr`. This function does
+ * not allocate memory and requires that `max_data_length` is less than or equal to `sizeof(arr)`
+ * when `arr` is passed as `data` pointer.
+ */
+non_null() bool bin_unpack_bin_max(Bin_Unpack *bu, uint8_t *data, uint16_t *data_length_ptr, uint16_t max_data_length);
 /** @brief Unpack a MessagePack bin of a fixed length into a pre-allocated byte array.
  *
- * Unlike the function above, this function does not allocate any memory, but requires the size to
- * be known up front.
+ * Similar to the function above, but doesn't output the data length.
  */
 non_null() bool bin_unpack_bin_fixed(Bin_Unpack *bu, uint8_t *data, uint32_t data_length);
 

toxcore/events/conference_invite.c

@@ -120,7 +120,7 @@ static bool tox_event_conference_invite_unpack(
     Tox_Event_Conference_Invite *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 3)) {
+    if (!bin_unpack_array_fixed(bu, 3, nullptr)) {
         return false;
     }
 

toxcore/events/conference_message.c

@@ -135,7 +135,7 @@ static bool tox_event_conference_message_unpack(
     Tox_Event_Conference_Message *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 4)) {
+    if (!bin_unpack_array_fixed(bu, 4, nullptr)) {
         return false;
     }
 

toxcore/events/conference_peer_name.c

@@ -120,7 +120,7 @@ static bool tox_event_conference_peer_name_unpack(
     Tox_Event_Conference_Peer_Name *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 3)) {
+    if (!bin_unpack_array_fixed(bu, 3, nullptr)) {
         return false;
     }
 

toxcore/events/conference_title.c

@@ -119,7 +119,7 @@ static bool tox_event_conference_title_unpack(
     Tox_Event_Conference_Title *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 3)) {
+    if (!bin_unpack_array_fixed(bu, 3, nullptr)) {
         return false;
     }
 

toxcore/events/file_chunk_request.c

@@ -112,7 +112,7 @@ static bool tox_event_file_chunk_request_unpack(
     Tox_Event_File_Chunk_Request *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 4)) {
+    if (!bin_unpack_array_fixed(bu, 4, nullptr)) {
         return false;
     }
 

toxcore/events/file_recv.c

@@ -149,7 +149,7 @@ static bool tox_event_file_recv_unpack(
     Tox_Event_File_Recv *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 5)) {
+    if (!bin_unpack_array_fixed(bu, 5, nullptr)) {
         return false;
     }
 

toxcore/events/file_recv_chunk.c

@@ -134,7 +134,7 @@ static bool tox_event_file_recv_chunk_unpack(
     Tox_Event_File_Recv_Chunk *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 4)) {
+    if (!bin_unpack_array_fixed(bu, 4, nullptr)) {
         return false;
     }
 

toxcore/events/file_recv_control.c

@@ -99,7 +99,7 @@ static bool tox_event_file_recv_control_unpack(
     Tox_Event_File_Recv_Control *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 3)) {
+    if (!bin_unpack_array_fixed(bu, 3, nullptr)) {
         return false;
     }
 

toxcore/events/friend_connection_status.c

@@ -86,7 +86,7 @@ static bool tox_event_friend_connection_status_unpack(
     Tox_Event_Friend_Connection_Status *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_lossless_packet.c

@@ -105,7 +105,7 @@ static bool tox_event_friend_lossless_packet_unpack(
     Tox_Event_Friend_Lossless_Packet *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_lossy_packet.c

@@ -104,7 +104,7 @@ static bool tox_event_friend_lossy_packet_unpack(
     Tox_Event_Friend_Lossy_Packet *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_message.c

@@ -119,7 +119,7 @@ static bool tox_event_friend_message_unpack(
     Tox_Event_Friend_Message *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 3)) {
+    if (!bin_unpack_array_fixed(bu, 3, nullptr)) {
         return false;
     }
 

toxcore/events/friend_name.c

@@ -104,7 +104,7 @@ static bool tox_event_friend_name_unpack(
     Tox_Event_Friend_Name *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_read_receipt.c

@@ -83,7 +83,7 @@ static bool tox_event_friend_read_receipt_unpack(
     Tox_Event_Friend_Read_Receipt *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_request.c

@@ -105,7 +105,7 @@ static bool tox_event_friend_request_unpack(
     Tox_Event_Friend_Request *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_status.c

@@ -84,7 +84,7 @@ static bool tox_event_friend_status_unpack(
     Tox_Event_Friend_Status *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_status_message.c

@@ -106,7 +106,7 @@ static bool tox_event_friend_status_message_unpack(
     Tox_Event_Friend_Status_Message *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/events/friend_typing.c

@@ -82,7 +82,7 @@ static bool tox_event_friend_typing_unpack(
     Tox_Event_Friend_Typing *event, Bin_Unpack *bu)
 {
     assert(event != nullptr);
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         return false;
     }
 

toxcore/group.c

@@ -802,6 +802,7 @@ static int addpeer(Group_Chats *g_c, uint32_t groupnumber, const uint8_t *real_p
 
     if (peer_index != -1) {
         if (!pk_equal(g->group[peer_index].real_pk, real_pk)) {
+            LOGGER_ERROR(g_c->m->log, "peer public key is incorrect for peer %d", peer_number);
             return -1;
         }
 
@@ -3679,6 +3680,7 @@ static State_Load_Status load_conferences_helper(Group_Chats *g_c, const uint8_t
 
         if (groupnumber == -1) {
             // If this fails there's a serious problem, don't bother with cleanup
+            LOGGER_ERROR(g_c->m->log, "conference creation failed");
             return STATE_LOAD_STATUS_ERROR;
         }
 
@@ -3696,6 +3698,7 @@ static State_Load_Status load_conferences_helper(Group_Chats *g_c, const uint8_t
                 assert(ret);
             }
 
+            LOGGER_ERROR(g_c->m->log, "conference loading failed");
             return STATE_LOAD_STATUS_ERROR;
         }
 
@@ -3705,6 +3708,7 @@ static State_Load_Status load_conferences_helper(Group_Chats *g_c, const uint8_t
                                        nullptr, true, false);
 
         if (peer_index == -1) {
+            LOGGER_ERROR(g_c->m->log, "adding peer %d failed", g->peer_number);
             return STATE_LOAD_STATUS_ERROR;
         }
 

toxcore/group_chats.c

@@ -6961,12 +6961,12 @@ static bool ping_peer(const GC_Chat *chat, const GC_Connection *gconn)
 
     if (!send_lossy_group_packet(chat, gconn, data, packed_len, GP_PING)) {
         free(data);
-        return true;
+        return false;
     }
 
     free(data);
 
-    return false;
+    return true;
 }
 
 /**

toxcore/group_pack.c

@@ -22,7 +22,7 @@
 non_null()
 static bool load_unpack_state_values(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 8)) {
+    if (!bin_unpack_array_fixed(bu, 8, nullptr)) {
         LOGGER_ERROR(chat->log, "Group state values array malformed");
         return false;
     }
@@ -58,15 +58,23 @@ static bool load_unpack_state_values(GC_Chat *chat, Bin_Unpack *bu)
 non_null()
 static bool load_unpack_state_bin(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 5)) {
+    if (!bin_unpack_array_fixed(bu, 5, nullptr)) {
         LOGGER_ERROR(chat->log, "Group state binary array malformed");
         return false;
     }
 
-    if (!(bin_unpack_bin_fixed(bu, chat->shared_state_sig, SIGNATURE_SIZE)
-            && bin_unpack_bin_fixed(bu, chat->shared_state.founder_public_key, EXT_PUBLIC_KEY_SIZE)
-            && bin_unpack_bin_fixed(bu, chat->shared_state.group_name, chat->shared_state.group_name_len)
-            && bin_unpack_bin_fixed(bu, chat->shared_state.password, chat->shared_state.password_length)
+    if (!bin_unpack_bin_fixed(bu, chat->shared_state_sig, SIGNATURE_SIZE)) {
+        LOGGER_ERROR(chat->log, "Failed to unpack shared state signature");
+        return false;
+    }
+
+    if (!bin_unpack_bin_fixed(bu, chat->shared_state.founder_public_key, EXT_PUBLIC_KEY_SIZE)) {
+        LOGGER_ERROR(chat->log, "Failed to unpack founder public key");
+        return false;
+    }
+
+    if (!(bin_unpack_bin_max(bu, chat->shared_state.group_name, &chat->shared_state.group_name_len, sizeof(chat->shared_state.group_name))
+            && bin_unpack_bin_max(bu, chat->shared_state.password, &chat->shared_state.password_length, sizeof(chat->shared_state.password))
             && bin_unpack_bin_fixed(bu, chat->shared_state.mod_list_hash, MOD_MODERATION_HASH_SIZE))) {
         LOGGER_ERROR(chat->log, "Failed to unpack state binary data");
         return false;
@@ -78,7 +86,7 @@ static bool load_unpack_state_bin(GC_Chat *chat, Bin_Unpack *bu)
 non_null()
 static bool load_unpack_topic_info(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 6)) {
+    if (!bin_unpack_array_fixed(bu, 6, nullptr)) {
         LOGGER_ERROR(chat->log, "Group topic array malformed");
         return false;
     }
@@ -86,7 +94,7 @@ static bool load_unpack_topic_info(GC_Chat *chat, Bin_Unpack *bu)
     if (!(bin_unpack_u32(bu, &chat->topic_info.version)
             && bin_unpack_u16(bu, &chat->topic_info.length)
             && bin_unpack_u16(bu, &chat->topic_info.checksum)
-            && bin_unpack_bin_fixed(bu, chat->topic_info.topic, chat->topic_info.length)
+            && bin_unpack_bin_max(bu, chat->topic_info.topic, &chat->topic_info.length, sizeof(chat->topic_info.topic))
             && bin_unpack_bin_fixed(bu, chat->topic_info.public_sig_key, SIG_PUBLIC_KEY_SIZE)
             && bin_unpack_bin_fixed(bu, chat->topic_sig, SIGNATURE_SIZE))) {
         LOGGER_ERROR(chat->log, "Failed to unpack topic info");
@@ -99,8 +107,9 @@ static bool load_unpack_topic_info(GC_Chat *chat, Bin_Unpack *bu)
 non_null()
 static bool load_unpack_mod_list(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 2)) {
-        LOGGER_ERROR(chat->log, "Group mod list array malformed");
+    uint32_t actual_size = 0;
+    if (!bin_unpack_array_fixed(bu, 2, &actual_size)) {
+        LOGGER_ERROR(chat->log, "Group mod list array malformed: %d != 2", actual_size);
         return false;
     }
 
@@ -148,7 +157,7 @@ static bool load_unpack_mod_list(GC_Chat *chat, Bin_Unpack *bu)
 non_null()
 static bool load_unpack_keys(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 4)) {
+    if (!bin_unpack_array_fixed(bu, 4, nullptr)) {
         LOGGER_ERROR(chat->log, "Group keys array malformed");
         return false;
     }
@@ -167,7 +176,7 @@ static bool load_unpack_keys(GC_Chat *chat, Bin_Unpack *bu)
 non_null()
 static bool load_unpack_self_info(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 4)) {
+    if (!bin_unpack_array_fixed(bu, 4, nullptr)) {
         LOGGER_ERROR(chat->log, "Group self info array malformed");
         return false;
     }
@@ -214,7 +223,7 @@ static bool load_unpack_self_info(GC_Chat *chat, Bin_Unpack *bu)
 non_null()
 static bool load_unpack_saved_peers(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 2)) {
+    if (!bin_unpack_array_fixed(bu, 2, nullptr)) {
         LOGGER_ERROR(chat->log, "Group saved peers array malformed");
         return false;
     }
@@ -256,8 +265,9 @@ static bool load_unpack_saved_peers(GC_Chat *chat, Bin_Unpack *bu)
 
 bool gc_load_unpack_group(GC_Chat *chat, Bin_Unpack *bu)
 {
-    if (!bin_unpack_array_fixed(bu, 7)) {
-        LOGGER_ERROR(chat->log, "Group info array malformed");
+    uint32_t actual_size;
+    if (!bin_unpack_array_fixed(bu, 7, &actual_size)) {
+        LOGGER_ERROR(chat->log, "Group info array malformed: %d != 7", actual_size);
         return false;
     }
 

toxcore/network.c

@@ -1086,7 +1086,7 @@ void networking_poll(const Networking_Core *net, void *userdata)
     }
 
     IP_Port ip_port;
-    uint8_t data[MAX_UDP_PACKET_SIZE];
+    uint8_t data[MAX_UDP_PACKET_SIZE] = {0};
     uint32_t length;
 
     while (receivepacket(net->ns, net->mem, net->log, net->sock, &ip_port, data, &length) != -1) {

toxcore/state.c

@@ -52,7 +52,7 @@ int state_load(const Logger *log, state_load_cb *state_load_callback, void *oute
             }
 
             case STATE_LOAD_STATUS_ERROR: {
-                LOGGER_ERROR(log, "Error occcured in state file (type: %u).", type);
+                LOGGER_ERROR(log, "Error occcured in state file (type: 0x%02x).", type);
                 return -1;
             }
 

toxcore/tox_private.c

@@ -149,3 +149,20 @@ bool tox_dht_get_nodes(const Tox *tox, const uint8_t *public_key, const char *ip
 
     return true;
 }
+
+uint16_t tox_dht_get_num_closelist(const Tox *tox) {
+    tox_lock(tox);
+    const uint16_t num_total = dht_get_num_closelist(tox->m->dht);
+    tox_unlock(tox);
+
+    return num_total;
+}
+
+uint16_t tox_dht_get_num_closelist_announce_capable(const Tox *tox){
+    tox_lock(tox);
+    const uint16_t num_cap = dht_get_num_closelist_announce_capable(tox->m->dht);
+    tox_unlock(tox);
+
+    return num_cap;
+}
+

toxcore/tox_private.h

@@ -140,6 +140,22 @@ typedef enum Tox_Err_Dht_Get_Nodes {
 bool tox_dht_get_nodes(const Tox *tox, const uint8_t *public_key, const char *ip, uint16_t port,
                        const uint8_t *target_public_key, Tox_Err_Dht_Get_Nodes *error);
 
+/**
+ * This function returns the ratio of close dht nodes that are known to support announce/store.
+ * This function returns the number of DHT nodes in the closelist.
+ *
+ * @return number
+ */
+uint16_t tox_dht_get_num_closelist(const Tox *tox);
+
+/**
+ * This function returns the number of DHT nodes in the closelist,
+ * that are capable to store annouce data (introduced in version 0.2.18).
+ *
+ * @return number
+ */
+uint16_t tox_dht_get_num_closelist_announce_capable(const Tox *tox);
+
 #ifdef __cplusplus
 }
 #endif