X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=m4%2Fopenssl.m4;h=4cf26f47bb74920caf42faf8988e388501791f17;hp=40ad4fd0d220936837e204fc11bf6cdd15308037;hb=848effe2644b0b734c5096a34021be1a3963302f;hpb=8988b127e18435054e48cbcca8ac712ddda3d6d2

diff --git a/m4/openssl.m4 b/m4/openssl.m4
index 40ad4fd0..4cf26f47 100644
--- a/m4/openssl.m4
+++ b/m4/openssl.m4
@@ -1,49 +1,58 @@
-dnl Check to find the OpenSSL headers/libraries
+dnl Check to find the LibreSSL/OpenSSL headers/libraries
 
-AC_DEFUN(tinc_OPENSSL,
+AC_DEFUN([tinc_OPENSSL],
 [
-  tinc_ac_save_CPPFLAGS="$CPPFLAGS"
+  case $host_os in
+    *mingw*)
+    ;;
+    *)
+      AC_CHECK_FUNC(dlopen,
+        [],
+        [AC_CHECK_LIB(dl, dlopen,
+          [LIBS="$LIBS -ldl"],
+          [AC_MSG_ERROR([LibreSSL/OpenSSL depends on libdl.]); break]
+        )]
+      )
+    ;;
+  esac
+
+  AC_ARG_WITH(openssl,
+    AS_HELP_STRING([--with-openssl=DIR], [LibreSSL/OpenSSL base directory, or:]),
+    [openssl="$withval"
+     CPPFLAGS="$CPPFLAGS -I$withval/include"
+     LDFLAGS="$LDFLAGS -L$withval/lib"]
+  )
 
   AC_ARG_WITH(openssl-include,
-    [  --with-openssl-include=DIR  OpenSSL headers directory (without trailing /openssl)],
+    AS_HELP_STRING([--with-openssl-include=DIR], [LibreSSL/OpenSSL headers directory (without trailing /openssl)]),
     [openssl_include="$withval"
-     CFLAGS="$CFLAGS -I$withval"
      CPPFLAGS="$CPPFLAGS -I$withval"]
   )
 
   AC_ARG_WITH(openssl-lib,
-    [  --with-openssl-lib=DIR  OpenSSL library directory],
+    AS_HELP_STRING([--with-openssl-lib=DIR], [LibreSSL/OpenSSL library directory]),
     [openssl_lib="$withval"
-     LIBS="$LIBS -L$withval"]
+     LDFLAGS="$LDFLAGS -L$withval"]
   )
 
-  AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h,
+  AC_CHECK_HEADERS(openssl/evp.h openssl/rsa.h openssl/rand.h openssl/err.h openssl/sha.h openssl/pem.h openssl/engine.h,
     [],
-    [AC_MSG_ERROR([OpenSSL header files not found.]); break]
+    [AC_MSG_ERROR([LibreSSL/OpenSSL header files not found.]); break]
   )
 
-  CPPFLAGS="$tinc_ac_save_CPPFLAGS"
-
-  AC_CHECK_LIB(crypto, SHA1_version,
-    [LIBS="$LIBS -lcrypto"],
-    [AC_MSG_ERROR([OpenSSL libraries not found.])]
+  AC_CHECK_LIB(crypto, EVP_EncryptInit_ex,
+    [LIBS="-lcrypto $LIBS"],
+    [AC_MSG_ERROR([LibreSSL/OpenSSL libraries not found.])]
   )
 
-  AC_CHECK_FUNCS(RAND_pseudo_bytes)
-
-  AC_CHECK_FUNC(OpenSSL_add_all_algorithms,
-    [],
-    [AC_CHECK_FUNC(SSLeay_add_all_algorithms,
-      [AC_DEFINE(HAVE_SSLEAY_ADD_ALL_ALGORITHMS, 1, [Defined if this function should be used instead of OpenSLL_add_all_algorithms])],
-      [AC_MSG_ERROR([Missing required OpenSSL functionality!])]
-    )]
+  AC_CHECK_FUNCS([RAND_bytes EVP_EncryptInit_ex EVP_CIPHER_CTX_new EVP_aes_256_ctr], ,
+    [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
   )
 
-  AC_CHECK_FUNC(dlopen,
-    [],
-    [AC_CHECK_LIB(dl, dlopen,
-      [LIBS="$LIBS -ldl"],
-      [AC_MSG_ERROR([OpenSSL depends on libdl.])]
-    )]
+  AC_CHECK_DECL([OpenSSL_add_all_algorithms], ,
+    [AC_MSG_ERROR([Missing LibreSSL/OpenSSL functionality, make sure you have installed the latest version.]); break],
+    [#include <openssl/evp.h>]
   )
+
+  AC_CHECK_FUNCS([BN_GENCB_new ERR_remove_state RSA_set0_key], , , [#include <openssl/rsa.h>])
 ])