From b92e6532a0237b7b13e29c6c0c55943fc1cd7d77 Mon Sep 17 00:00:00 2001
From: Steven Barth <steven@midlink.org>
Date: Wed, 4 Mar 2009 17:17:30 +0000
Subject: nixio: Autogenerate private key on installation if we have axtls
 support, make the TLS provider configurable in the build menu

---
 contrib/package/luci/Makefile                      | 26 +++++++++++++++++++++-
 libs/nixio/Makefile                                |  2 ++
 libs/nixio/axtls-root/etc/uci-defaults/nixio       |  2 ++
 .../nixio/axtls-root/usr/sbin/nixio-axtls-checkkey | 20 +++++++++++++++++
 libs/nixio/ipkg/postinst                           |  4 ++++
 5 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100755 libs/nixio/axtls-root/etc/uci-defaults/nixio
 create mode 100755 libs/nixio/axtls-root/usr/sbin/nixio-axtls-checkkey
 create mode 100755 libs/nixio/ipkg/postinst

diff --git a/contrib/package/luci/Makefile b/contrib/package/luci/Makefile
index e915d0370..6dad6d486 100644
--- a/contrib/package/luci/Makefile
+++ b/contrib/package/luci/Makefile
@@ -213,15 +213,39 @@ define Package/luci-json/install
 endef
 
 
+
+NIXIO_TLS:=axtls
+
 define Package/luci-nixio
   $(call Package/luci/libtemplate)
   TITLE:=NIXIO Socket Library
+  DEPENDS:=
 endef
 
 define Package/luci-nixio/install
 	$(call Package/luci/install/template,$(1),libs/nixio)
 endef
 
+define Package/luci-nixio/config
+	choice
+		prompt "TLS Provider"
+		default PACKAGE_luci-nixio_axtls
+
+		config PACKAGE_luci-nixio_axtls
+			bool "Builtin (axTLS)"
+			select PACKAGE_dropbear
+			select PACKAGE_dropbearconvert
+
+		config PACKAGE_luci-nixio_openssl
+			bool "OpenSSL"
+			select PACKAGE_libopenssl
+	endchoice
+endef
+
+ifneq ($(CONFIG_PACKAGE_luci-nixio_openssl),)
+  NIXIO_TLS:=openssl
+endif
+
 
 define Package/luci-sys
   $(call Package/luci/libtemplate)
@@ -951,7 +975,7 @@ MAKE_FLAGS += \
 	LUA_SHLIBS="-llua -lm -ldl -lcrypt" \
 	CFLAGS="$(TARGET_CFLAGS) -I$(STAGING_DIR)/usr/include" \
 	LDFLAGS="$(TARGET_LDFLAGS) -L$(STAGING_DIR)/usr/lib" \
-	OS="Linux"
+	NIXIO_TLS="$(NIXIO_TLS)" OS="Linux"
 
 
 $(eval $(call BuildPackage,luci-core))
diff --git a/libs/nixio/Makefile b/libs/nixio/Makefile
index d58162fcd..df63dc183 100644
--- a/libs/nixio/Makefile
+++ b/libs/nixio/Makefile
@@ -39,6 +39,8 @@ src/tls-socket.o: $(TLS_DEPENDS) src/tls-socket.c
 	
 src/openssl-compat.o: src/libaxtls.a src/openssl-compat.c
 	$(COMPILE) $(NIXIO_CFLAGS) $(LUA_CFLAGS) $(FPIC) $(TLS_CFLAGS) -c -o $@ src/openssl-compat.c
+	mkdir -p dist
+	cp -pR axtls-root/* dist/
 	
 
 compile: $(NIXIO_OBJ)
diff --git a/libs/nixio/axtls-root/etc/uci-defaults/nixio b/libs/nixio/axtls-root/etc/uci-defaults/nixio
new file mode 100755
index 000000000..4f342628a
--- /dev/null
+++ b/libs/nixio/axtls-root/etc/uci-defaults/nixio
@@ -0,0 +1,2 @@
+#!/bin/sh
+nixio-axtls-checkkey
diff --git a/libs/nixio/axtls-root/usr/sbin/nixio-axtls-checkkey b/libs/nixio/axtls-root/usr/sbin/nixio-axtls-checkkey
new file mode 100755
index 000000000..994f24e7b
--- /dev/null
+++ b/libs/nixio/axtls-root/usr/sbin/nixio-axtls-checkkey
@@ -0,0 +1,20 @@
+#!/usr/bin/lua
+local nixio = require "nixio"
+local posix
+local defkey = nixio.meta_tls_context.tls_defaultkey
+if not defkey or io.open(defkey) then
+	os.exit(0)
+end
+
+if os.execute("which openssl") then
+	io.stderr:write("Warning: OpenSSL detected "..
+	"but it looks like nixio was linked against axtls\n")
+	os.execute("umask 0077;openssl genrsa -out '" .. defkey .. "' 2048")
+elseif os.execute("which dropbearkey && which dropbearconvert") then
+	os.execute("dropbearkey -t rsa -s 2048 -f /tmp/dbkey.rsa")
+	os.execute("umask 0077;dropbearconvert dropbear openssh /tmp/dbkey.rsa '"..defkey.."'")
+	os.remove("/tmp/dbkey.rsa")
+else
+	io.stderr:write("No key generators available! Giving up.")
+	os.exit(1)
+end
diff --git a/libs/nixio/ipkg/postinst b/libs/nixio/ipkg/postinst
new file mode 100755
index 000000000..0863c22a3
--- /dev/null
+++ b/libs/nixio/ipkg/postinst
@@ -0,0 +1,4 @@
+#!/bin/sh
+[ -n "${IPKG_INSTROOT}" -a -f "/etc/uci-defaults/nixio" ] || {
+	( . /etc/uci-defaults/nixio ) && rm -f /etc/uci-defaults/nixio
+}
-- 
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