113 lines
3.3 KiB
Diff
113 lines
3.3 KiB
Diff
From 9af3be81c75b44415a6e7efe19f8f89d55091f84 Mon Sep 17 00:00:00 2001
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From: rakshasa <sundell.software@gmail.com>
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Date: Tue, 20 Dec 2016 19:51:02 +0900
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Subject: [PATCH] Added support for openssl 1.1.
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Downloaded from upstream commit
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https://github.com/rakshasa/libtorrent/commit/7b29b6bd2547e72e22b9b7981df27092842d2a10
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Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
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---
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configure.ac | 4 ++++
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src/utils/diffie_hellman.cc | 36 ++++++++++++++++++++++++++++++++++--
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2 files changed, 38 insertions(+), 2 deletions(-)
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diff --git a/configure.ac b/configure.ac
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index 5b1ea237..b885714d 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -71,12 +71,15 @@ AC_ARG_ENABLE(openssl,
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[ --disable-openssl Don't use OpenSSL's SHA1 implementation.],
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[
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if test "$enableval" = "yes"; then
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+dnl move to scripts.
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PKG_CHECK_MODULES(OPENSSL, libcrypto,
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CXXFLAGS="$CXXFLAGS $OPENSSL_CFLAGS";
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LIBS="$LIBS $OPENSSL_LIBS")
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AC_DEFINE(USE_OPENSSL, 1, Using OpenSSL.)
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AC_DEFINE(USE_OPENSSL_SHA, 1, Using OpenSSL's SHA1 implementation.)
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+ AC_CHECK_LIB([crypto], [DH_set0_pqg], [AC_DEFINE(USE_OPENSSL_1_1, 1, Using OpenSSL 1.1.)])
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+
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else
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AC_DEFINE(USE_NSS_SHA, 1, Using Mozilla's SHA1 implementation.)
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fi
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@@ -87,6 +90,7 @@ AC_ARG_ENABLE(openssl,
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AC_DEFINE(USE_OPENSSL, 1, Using OpenSSL.)
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AC_DEFINE(USE_OPENSSL_SHA, 1, Using OpenSSL's SHA1 implementation.)
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+ AC_CHECK_LIB([crypto], [DH_set0_pqg], [AC_DEFINE(USE_OPENSSL_1_1, 1, Using OpenSSL 1.1.)])
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]
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)
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diff --git a/src/utils/diffie_hellman.cc b/src/utils/diffie_hellman.cc
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index aa653d45..7ec13165 100644
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--- a/src/utils/diffie_hellman.cc
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+++ b/src/utils/diffie_hellman.cc
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@@ -54,11 +54,23 @@ DiffieHellman::DiffieHellman(const unsigned char *prime, int primeLength,
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m_secret(NULL), m_size(0) {
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#ifdef USE_OPENSSL
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+
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m_dh = DH_new();
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+
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+#ifdef USE_OPENSSL_1_1
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+ BIGNUM * const dh_p = BN_bin2bn(prime, primeLength, NULL);
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+ BIGNUM * const dh_g = BN_bin2bn(generator, generatorLength, NULL);
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+
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+ if (dh_p == NULL || dh_g == NULL ||
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+ !DH_set0_pqg(m_dh, dh_p, NULL, dh_g))
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+ throw internal_error("Could not generate Diffie-Hellman parameters");
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+#else
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m_dh->p = BN_bin2bn(prime, primeLength, NULL);
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m_dh->g = BN_bin2bn(generator, generatorLength, NULL);
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+#endif
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DH_generate_key(m_dh);
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+
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#else
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throw internal_error("Compiled without encryption support.");
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#endif
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@@ -74,7 +86,19 @@ DiffieHellman::~DiffieHellman() {
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bool
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DiffieHellman::is_valid() const {
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#ifdef USE_OPENSSL
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+ if (m_dh == NULL)
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+ return false;
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+
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+#ifdef USE_OPENSSL_1_1
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+ const BIGNUM *pub_key;
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+
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+ DH_get0_key(m_dh, &pub_key, NULL);
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+
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+ return pub_key != NULL;
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+#else
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return m_dh != NULL && m_dh->pub_key != NULL;
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+#endif
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+
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#else
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return false;
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#endif
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@@ -103,8 +127,16 @@ DiffieHellman::store_pub_key(unsigned char* dest, unsigned int length) {
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#ifdef USE_OPENSSL
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std::memset(dest, 0, length);
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- if ((int)length >= BN_num_bytes(m_dh->pub_key))
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- BN_bn2bin(m_dh->pub_key, dest + length - BN_num_bytes(m_dh->pub_key));
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+ const BIGNUM *pub_key;
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+
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+#ifdef USE_OPENSSL_1_1
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+ DH_get0_key(m_dh, &pub_key, NULL);
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+#else
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+ pub_key = m_dh->pub_key;
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+#endif
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+
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+ if ((int)length >= BN_num_bytes(pub_key))
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+ BN_bn2bin(pub_key, dest + length - BN_num_bytes(pub_key));
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#endif
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}
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--
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2.14.4
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