Added usrsctp to the project & build instructions

Author: vkryl

.gitmodules

@@ -57,17 +57,24 @@
 [submodule "vkryl/core"]
 	path = vkryl/core
 	url = https://github.com/TGX-Android/X-Core.git
-  shallow = true
+	shallow = true
 [submodule "rlottie"]
 	path = app/jni/third_party/rlottie
 	url = https://github.com/TGX-Android/rlottie
 	shallow = true
 [submodule "vkryl/td"]
 	path = vkryl/td
 	url = https://github.com/TGX-Android/tdlib-utils.git
+	shallow = true
 [submodule "vkryl/android"]
 	path = vkryl/android
 	url = https://github.com/TGX-Android/X-Android.git
-[submodule "app/jni/third_party/boringssl"]
+	shallow = true
+[submodule "boringssl"]
 	path = app/jni/third_party/boringssl
 	url = https://github.com/google/boringssl
+	shallow = true
+[submodule "usrsctp"]
+	path = app/jni/third_party/usrsctp
+	url = https://github.com/sctplab/usrsctp
+	shallow = true

app/jni/BuildVoIP.cmake

@@ -364,4 +364,42 @@ target_include_directories(tgvoip PRIVATE
 target_compile_options(tgvoip PRIVATE
   -frtti -fexceptions -finline-functions -ffast-math -fno-strict-aliasing -Wno-unknown-pragmas
 )
-target_link_libraries(tgvoip PUBLIC log OpenSLES)
+target_link_libraries(tgvoip PUBLIC log OpenSLES)
+
+# usrsctp
+
+set(USRSCTP_DIR "${THIRDPARTY_DIR}/usrsctp/usrsctplib")
+
+add_library(usrsctp STATIC
+  "${USRSCTP_DIR}/netinet/sctp_asconf.c"
+  "${USRSCTP_DIR}/netinet/sctp_auth.c"
+  "${USRSCTP_DIR}/netinet/sctp_bsd_addr.c"
+  "${USRSCTP_DIR}/netinet/sctp_callout.c"
+  "${USRSCTP_DIR}/netinet/sctp_cc_functions.c"
+  "${USRSCTP_DIR}/netinet/sctp_crc32.c"
+  "${USRSCTP_DIR}/netinet/sctp_indata.c"
+  "${USRSCTP_DIR}/netinet/sctp_input.c"
+  "${USRSCTP_DIR}/netinet/sctp_output.c"
+  "${USRSCTP_DIR}/netinet/sctp_pcb.c"
+  "${USRSCTP_DIR}/netinet/sctp_peeloff.c"
+  "${USRSCTP_DIR}/netinet/sctp_sha1.c"
+  "${USRSCTP_DIR}/netinet/sctp_ss_functions.c"
+  "${USRSCTP_DIR}/netinet/sctp_sysctl.c"
+  "${USRSCTP_DIR}/netinet/sctp_timer.c"
+  "${USRSCTP_DIR}/netinet/sctp_userspace.c"
+  "${USRSCTP_DIR}/netinet/sctp_usrreq.c"
+  "${USRSCTP_DIR}/netinet/sctputil.c"
+  "${USRSCTP_DIR}/netinet6/sctp6_usrreq.c"
+  "${USRSCTP_DIR}/user_environment.c"
+  "${USRSCTP_DIR}/user_mbuf.c"
+  "${USRSCTP_DIR}/user_recv_thread.c"
+  "${USRSCTP_DIR}/user_socket.c"
+)
+target_compile_definitions(usrsctp PRIVATE
+  __Userspace__
+  SCTP_SIMPLE_ALLOCATOR
+  SCTP_PROCESS_LEVEL_LOCKS
+)
+target_include_directories(usrsctp PUBLIC
+  "${USRSCTP_DIR}"
+)

app/jni/CMakeLists.txt

@@ -108,6 +108,7 @@ set(EXCLUDE_LIBS
   liblz4.a
   "${SSL_LIB_PATH}"
   "${CRYPTO_LIB_PATH}"
+  libusrsctp.a
 )
 if (${USE_WEBP})
   list(APPEND EXCLUDE_LIBS
@@ -579,6 +580,7 @@ target_link_libraries(${NATIVE_LIB}
   lz4
   ssl
   crypto
+  usrsctp
 )
 if (${USE_WEBP})
   target_link_libraries(${NATIVE_LIB} webpdecoder_static)