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TLS transport: OpenSSL-based encrypted TCP

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- New transport_tls.h/c: TLS server (server_create_tls, server_listen_tls)
  and client (client_connect_tls) using OpenSSL
- protocol.c: io_set_ssl() + SSL_read/SSL_write in send_n_data/receive_n_data
- transport_tcp.h: ssl/ssl_ctx fields added to Server/Client structs
- config.h/c: use_tls, tls_cert, tls_key fields
- client_cli.c: --tls, --cert, --key flags
- server.c: --tls, --cert, --key, -p flags with TLS support
- CMakeLists.txt: OpenSSL::SSL + OpenSSL::Crypto linkage
- shell.nix: openssl added to buildInputs
This commit is contained in:
TapTap
2026-07-16 15:30:03 +02:00
parent 25383f893b
commit eff50346fd
13 changed files with 282 additions and 9 deletions
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CMakeLists.txt
+5 -3
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@@ -19,6 +19,8 @@ if(NOT ZSTD_LIBRARY)
message(FATAL_ERROR "zstd library not found. Ensure it is in your nix-shell!")
endif()
find_package(OpenSSL REQUIRED)
file(GLOB SHARED_SRCS "src/shared/*.c")
file(GLOB SERVER_SRCS "src/server/*.c")
file(GLOB CLIENT_SRCS "src/client/*.c")
@@ -26,13 +28,13 @@ file(GLOB TEST_SRCS "tests/*.c")
add_executable(server ${SERVER_SRCS} ${SHARED_SRCS})
target_include_directories(server PRIVATE src/shared src/server src/client)
target_link_libraries(server PRIVATE Threads::Threads ${ZSTD_LIBRARY})
target_link_libraries(server PRIVATE Threads::Threads ${ZSTD_LIBRARY} OpenSSL::SSL OpenSSL::Crypto)
add_executable(client ${CLIENT_SRCS} ${SHARED_SRCS})
target_include_directories(client PRIVATE src/shared src/server src/client)
target_link_libraries(client PRIVATE Threads::Threads ${ZSTD_LIBRARY})
target_link_libraries(client PRIVATE Threads::Threads ${ZSTD_LIBRARY} OpenSSL::SSL OpenSSL::Crypto)
add_executable(tests ${TEST_SRCS} ${SHARED_SRCS} src/client/scanner.c)
target_include_directories(tests PRIVATE tests src/shared src/server src/client)
target_link_libraries(tests PRIVATE Threads::Threads ${ZSTD_LIBRARY})
target_link_libraries(tests PRIVATE Threads::Threads ${ZSTD_LIBRARY} OpenSSL::SSL OpenSSL::Crypto)