Adding support for SSL to CMake build system

4 files changed, 93 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 194c25a..0d94a55 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,6 +55,7 @@ mark_as_advanced(AMQP_CODEGEN_DIR)
 
 find_package(POPT)
 find_package(XmlTo)
+find_package(OpenSSL 1.0.0)
 
 if (POPT_FOUND AND XmlTo_FOUND)
   set(DO_DOCS ON)
@@ -65,6 +66,30 @@ option(BUILD_EXAMPLES "Build Examples" ON)
 option(BUILD_TOOLS "Build Tools (requires POPT Library)" ${POPT_FOUND})
 option(BUILD_TOOLS_DOCS "Build man pages for Tools (requires xmlto)" ${DO_DOCS})
 option(BUILD_TESTS "Build tests (run tests with make test)" ON)
+option(ENABLE_SSL_SUPPORT "Enable SSL support" ON)
+
+set(SSL_ENGINE "OpenSSL" CACHE STRING "SSL Backend to use, valid options: OpenSSL, cyaSSL, GnuTLS, PolarSSL")
+mark_as_advanced(SSL_ENGINE)
+
+if (ENABLE_SSL_SUPPORT)
+  if (SSL_ENGINE STREQUAL "OpenSSL")
+    if (NOT OPENSSL_FOUND)
+      message(FATAL_ERROR "Cannot find OpenSSL package, install openssl-dev package")
+    endif()
+
+  elseif (SSL_ENGINE STREQUAL "cyaSSL")
+    find_package(cyaSSL REQUIRED)
+
+  elseif (SSL_ENGINE STREQUAL "GnuTLS")
+    find_package(GnuTLS REQUIRED)
+
+  elseif (SSL_ENGINE STREQUAL "PolarSSL")
+    find_package(PolarSSL REQUIRED)
+
+  else()
+    message(FATAL_ERROR "Unsupported SSL_ENGINE ${SSL_ENGINE}, valid engines: OpenSSL, cyaSSL, GnuTLS, or PolarSSL")
+  endif()
+endif()
 
 if (WIN32 AND NOT BUILD_SHARED_LIBS)
   message(FATAL_ERROR "The rabbitmq-c library cannot be built as a static library on Win32. Set BUILD_SHARED_LIBS=ON to get around this.")
diff --git a/cmake/FindPolarSSL.cmake b/cmake/FindPolarSSL.cmake
new file mode 100644
index 0000000..f5a7c9b
--- /dev/null
+++ b/cmake/FindPolarSSL.cmake
@@ -0,0 +1,17 @@
+INCLUDE(LibFindMacros)
+
+# Find the include directories
+FIND_PATH(POLARSSL_INCLUDE_DIR
+    NAMES polarssl/ssl.h
+    HINTS ${POLARSSL_PREFIX}/include
+    )
+
+FIND_LIBRARY(POLARSSL_LIBRARY
+    NAMES polarssl
+    HINTS ${POLARSSL_PREFIX}/lib
+    )
+
+SET(POLARSSL_PROCESS_INCLUDES POLARSSL_INCLUDE_DIR)
+SET(POLARSSL_PROCESS_LIBS POLARSSL_LIBRARY)
+
+LIBFIND_PROCESS(POLARSSL)
diff --git a/cmake/FindcyaSSL.cmake b/cmake/FindcyaSSL.cmake
new file mode 100644
index 0000000..80452bb
--- /dev/null
+++ b/cmake/FindcyaSSL.cmake
@@ -0,0 +1,17 @@
+INCLUDE(LibFindMacros)
+
+# Find the include directories
+FIND_PATH(CYASSL_INCLUDE_DIR
+    NAMES cyassl/ssl.h
+    HINTS ${CYASSL_PREFIX}/include
+    )
+
+FIND_LIBRARY(CYASSL_LIBRARY
+    NAMES cyassl
+    HINTS ${CYASSL_PREFIX}/lib
+    )
+
+SET(CYASSL_PROCESS_INCLUDES CYASSL_INCLUDE_DIR)
+SET(CYASSL_PROCESS_LIBS CYASSL_LIBRARY)
+
+LIBFIND_PROCESS(CYASSL)
diff --git a/librabbitmq/CMakeLists.txt b/librabbitmq/CMakeLists.txt
index 140c4b9..958b641 100644
--- a/librabbitmq/CMakeLists.txt
+++ b/librabbitmq/CMakeLists.txt
@@ -70,6 +70,35 @@ set(LIBRABBITMQ_INCLUDE_DIRS
 
 add_definitions(-DHAVE_CONFIG_H)
 
+if (ENABLE_SSL_SUPPORT)
+  add_definitions(-DWITH_SSL=1)
+
+  if (SSL_ENGINE STREQUAL "OpenSSL")
+    set(AMQP_SSL_SRCS amqp-ssl.h amqp-openssl.c)
+    include_directories(${OPENSSL_INCLUDE_DIR})
+    set(AMQP_SSL_LIBS ${OPENSSL_LIBRARIES})
+
+  elseif (SSL_ENGINE STREQUAL "cyaSSL")
+    set(AMQP_SSL_SRCS amqp-ssl.h amqp-cyassl.c)
+    include_directories(${CYASSL_INCLUDE_DIR})
+    set(AMQP_SSL_LIBS ${CYASSL_LIBRARIES})
+
+  elseif (SSL_ENGINE STREQUAL "GnuTLS")
+    set(AMQP_SSL_SRCS amqp-ssl.h amqp-gnutls.c)
+    include_directories(${GNUTLS_INCLUDE_DIR})
+    add_definitions(${GNUTLS_DEFINITIONS})
+    set(AMQP_SSL_LIBS ${GNUTLS_LIBRARIES})
+
+  elseif (SSL_ENGINE STREQUAL "PolarSSL")
+    set(AMQP_SSL_SRCS amqp-ssl.h amqp-polarssl.c)
+    include_directories(${POLARSSL_INCLUDE_DIR})
+    set(AMQP_SSL_LIBS ${POLARSSL_LIBRARIES})
+
+  else()
+    message(FATAL_ERROR "Unknown SSL_ENGINE ${SSL_ENGINE}")
+  endif()
+endif()
+
 set(RABBITMQ_SOURCES
     ${CMAKE_CURRENT_BINARY_DIR}/amqp_framing.h
     ${CMAKE_CURRENT_BINARY_DIR}/amqp_framing.c
@@ -77,6 +106,7 @@ set(RABBITMQ_SOURCES
     amqp_connection.c  amqp_mem.c  amqp_private.h  amqp_socket.c  amqp_table.c
     amqp_url.c
     ${SOCKET_IMPL}/socket.h ${SOCKET_IMPL}/socket.c
+    ${AMQP_SSL_SRCS}
 )
 
 add_definitions(-DAMQP_BUILD)
@@ -87,6 +117,10 @@ endif()
 
 add_library(rabbitmq ${RABBITMQ_SOURCES})
 
+if (ENABLE_SSL_SUPPORT)
+  target_link_libraries(rabbitmq ${AMQP_SSL_LIBS})
+endif()
+
 if(WIN32)
   target_link_libraries(rabbitmq ws2_32)
 endif(WIN32)