diff --git a/sources.mk b/sources.mk
index e3cbefa..254a253 100644
--- a/sources.mk
+++ b/sources.mk
@@ -14,6 +14,20 @@ SRCS += $(SRC_DIR)/handle/get_fd.c
 SRCS += $(SRC_DIR)/packet/build.c
 SRCS += $(SRC_DIR)/packet/parse_ip.c
 SRCS += $(SRC_DIR)/packet/parse_icmp.c
+SRCS += $(SRC_DIR)/send/helpers/prepare_destination.c
+SRCS += $(SRC_DIR)/send/helpers/set_socket_ttl.c
+SRCS += $(SRC_DIR)/send/helpers/validate_handle.c
+SRCS += $(SRC_DIR)/send/core/send_packet.c
+SRCS += $(SRC_DIR)/send/core/send_to_destination.c
+SRCS += $(SRC_DIR)/send/api/raw.c
+SRCS += $(SRC_DIR)/send/api/echo.c
+SRCS += $(SRC_DIR)/recv/helpers/validate_params.c
+SRCS += $(SRC_DIR)/recv/helpers/build_reply.c
+SRCS += $(SRC_DIR)/recv/helpers/handle_receive_error.c
+SRCS += $(SRC_DIR)/recv/core/receive_packet.c
+SRCS += $(SRC_DIR)/recv/core/parse_packet.c
+SRCS += $(SRC_DIR)/recv/core/process_single_packet.c
+SRCS += $(SRC_DIR)/recv/api/process.c
 
 TESTS_DIR = tests
 TESTS += $(TESTS_DIR)/utils/test_checksum.c
@@ -26,3 +40,13 @@ TESTS += $(TESTS_DIR)/handle/test_get_fd.c
 TESTS += $(TESTS_DIR)/packet/test_build.c
 TESTS += $(TESTS_DIR)/packet/test_parse_ip.c
 TESTS += $(TESTS_DIR)/packet/test_parse_icmp.c
+TESTS += $(TESTS_DIR)/send/test_prepare_destination.c
+TESTS += $(TESTS_DIR)/send/test_set_socket_ttl.c
+TESTS += $(TESTS_DIR)/send/test_send_packet.c
+TESTS += $(TESTS_DIR)/send/test_send_raw.c
+TESTS += $(TESTS_DIR)/send/test_send_echo.c
+TESTS += $(TESTS_DIR)/recv/test_validate_params.c
+TESTS += $(TESTS_DIR)/recv/test_build_reply.c
+TESTS += $(TESTS_DIR)/recv/test_receive_packet.c
+TESTS += $(TESTS_DIR)/recv/test_parse_packet.c
+TESTS += $(TESTS_DIR)/recv/test_process.c