tinc: Fix compilation without deprecated OpenSSL APIs

Minor Makefile adjustments. Added PKG_BUILD_PARALLEL for faster
compilation.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/tinc/Makefile

@@ -9,12 +9,13 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=tinc
 PKG_VERSION:=1.0.35
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=http://www.tinc-vpn.org/packages
+PKG_SOURCE_URL:=https://www.tinc-vpn.org/packages
 PKG_HASH:=18c83b147cc3e2133a7ac2543eeb014d52070de01c7474287d3ccecc9b16895e
 
+PKG_BUILD_PARALLEL:=1
 PKG_INSTALL:=1
 
 include $(INCLUDE_DIR)/package.mk

net/tinc/patches/010-Fix-compilation-when-OpenSSL-has-no-ENGINE-support.patch

@@ -0,0 +1,48 @@
+From 43e323f5fd61ddf2c2adc2a5c12455b6578c059a Mon Sep 17 00:00:00 2001
+From: Rosen Penev <rosenp@gmail.com>
+Date: Wed, 12 Dec 2018 13:40:37 -0800
+Subject: [PATCH 1/2] Fix compilation when OpenSSL has no ENGINE support
+
+This will be the case in OpenWrt soon.
+---
+ src/tincd.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/src/tincd.c b/src/tincd.c
+index 7b882c7a..bdac0c9d 100644
+--- a/src/tincd.c
++++ b/src/tincd.c
+@@ -37,7 +37,9 @@
+ #include <openssl/rsa.h>
+ #include <openssl/pem.h>
+ #include <openssl/evp.h>
++#ifndef OPENSSL_NO_ENGINE
+ #include <openssl/engine.h>
++#endif
+ 
+ #ifdef HAVE_LZO
+ #include LZO1X_H
+@@ -685,8 +687,10 @@ int main(int argc, char **argv) {
+ 
+ 	init_configuration(&config_tree);
+ 
++#ifndef OPENSSL_NO_ENGINE
+ 	ENGINE_load_builtin_engines();
+ 	ENGINE_register_all_complete();
++#endif
+ 
+ 	OpenSSL_add_all_algorithms();
+ 
+@@ -809,7 +813,9 @@ end:
+ 
+ 	EVP_cleanup();
+ 	ERR_free_strings();
++#ifndef OPENSSL_NO_ENGINE
+ 	ENGINE_cleanup();
++#endif
+ 
+ 	exit_configuration(&config_tree);
+ 	list_delete_list(cmdline_conf);
+-- 
+2.20.0
+

net/tinc/patches/020-Fix-compilation-without-deprecated-OpenSSL-APIs.patch

@@ -0,0 +1,98 @@
+From 5e0e401dc69b9c25e5f85de7484a70ea97862e16 Mon Sep 17 00:00:00 2001
+From: Rosen Penev <rosenp@gmail.com>
+Date: Wed, 12 Dec 2018 13:45:59 -0800
+Subject: [PATCH 2/2] Fix compilation without deprecated OpenSSL APIs
+
+This is an optional part of OpenWrt designed to save space.
+---
+ src/connection.c | 4 ++--
+ src/connection.h | 4 ++++
+ src/net_setup.c  | 1 +
+ src/tincd.c      | 5 +++++
+ 4 files changed, 12 insertions(+), 2 deletions(-)
+
+diff --git a/src/connection.c b/src/connection.c
+index 38b3ccfe..d137af12 100644
+--- a/src/connection.c
++++ b/src/connection.c
+@@ -96,13 +96,13 @@ void free_connection_partially(connection_t *c) {
+ 	c->outbudget = 0;
+ 
+ 	if(c->inctx) {
+-		EVP_CIPHER_CTX_cleanup(c->inctx);
++		EVP_CIPHER_CTX_reset(c->inctx);
+ 		free(c->inctx);
+ 		c->inctx = NULL;
+ 	}
+ 
+ 	if(c->outctx) {
+-		EVP_CIPHER_CTX_cleanup(c->outctx);
++		EVP_CIPHER_CTX_reset(c->outctx);
+ 		free(c->outctx);
+ 		c->outctx = NULL;
+ 	}
+diff --git a/src/connection.h b/src/connection.h
+index 629e16b9..4f554672 100644
+--- a/src/connection.h
++++ b/src/connection.h
+@@ -24,6 +24,10 @@
+ #include <openssl/rsa.h>
+ #include <openssl/evp.h>
+ 
++#if OPENSSL_VERSION_NUMBER < 0x10100000L
++#define EVP_CIPHER_CTX_reset(c)	EVP_CIPHER_CTX_cleanup(c)
++#endif
++
+ #include "avl_tree.h"
+ 
+ #define OPTION_INDIRECT         0x0001
+diff --git a/src/net_setup.c b/src/net_setup.c
+index cac7455d..f26007bd 100644
+--- a/src/net_setup.c
++++ b/src/net_setup.c
+@@ -27,6 +27,7 @@
+ #include <openssl/rand.h>
+ #include <openssl/err.h>
+ #include <openssl/evp.h>
++#include <openssl/bn.h>
+ 
+ #include "avl_tree.h"
+ #include "conf.h"
+diff --git a/src/tincd.c b/src/tincd.c
+index bdac0c9d..e8a60449 100644
+--- a/src/tincd.c
++++ b/src/tincd.c
+@@ -40,6 +40,7 @@
+ #ifndef OPENSSL_NO_ENGINE
+ #include <openssl/engine.h>
+ #endif
++#include <openssl/bn.h>
+ 
+ #ifdef HAVE_LZO
+ #include LZO1X_H
+@@ -692,7 +693,9 @@ int main(int argc, char **argv) {
+ 	ENGINE_register_all_complete();
+ #endif
+ 
++#if OPENSSL_VERSION_NUMBER < 0x10100000L
+ 	OpenSSL_add_all_algorithms();
++#endif
+ 
+ 	if(generate_keys) {
+ 		read_server_config();
+@@ -811,10 +814,12 @@ end:
+ 
+ 	free(priority);
+ 
++#if OPENSSL_VERSION_NUMBER < 0x10100000L
+ 	EVP_cleanup();
+ 	ERR_free_strings();
+ #ifndef OPENSSL_NO_ENGINE
+ 	ENGINE_cleanup();
++#endif
+ #endif
+ 
+ 	exit_configuration(&config_tree);
+-- 
+2.20.0
+