openssh: enable password auth

packages/openssh/auth2-passwd.c.patch

@@ -0,0 +1,21 @@
+diff -uNr openssh-7.9p1/auth2-passwd.c openssh-7.9p1.mod/auth2-passwd.c
+--- openssh-7.9p1/auth2-passwd.c	2018-10-17 03:01:20.000000000 +0300
++++ openssh-7.9p1.mod/auth2-passwd.c	2018-10-21 14:30:10.208918070 +0300
+@@ -30,6 +30,8 @@
+ #include <string.h>
+ #include <stdarg.h>
+ 
++#include <termux-auth.h>
++
+ #include "packet.h"
+ #include "ssherr.h"
+ #include "log.h"
+@@ -62,7 +64,7 @@
+ 
+ 	if (change)
+ 		logit("password change not supported");
+-	else if (PRIVSEP(auth_password(ssh, password)) == 1)
++	else if (termux_auth(((Authctxt *)ssh->authctxt)->user, password))
+ 		authenticated = 1;
+ 	explicit_bzero(password, len);
+ 	free(password);

packages/openssh/build.sh

@@ -1,9 +1,10 @@
 TERMUX_PKG_HOMEPAGE=https://www.openssh.com/
 TERMUX_PKG_DESCRIPTION="Secure shell for logging into a remote machine"
 TERMUX_PKG_VERSION=7.9p1
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SHA256=6b4b3ba2253d84ed3771c8050728d597c91cfce898713beb7b64a305b6f11aad
 TERMUX_PKG_SRCURL=https://fastly.cdn.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${TERMUX_PKG_VERSION}.tar.gz
-TERMUX_PKG_DEPENDS="libandroid-support, ldns, openssl, libedit, libutil"
+TERMUX_PKG_DEPENDS="libandroid-support, ldns, openssl, libedit, libutil, termux-auth"
 TERMUX_PKG_CONFLICTS="dropbear"
 # --disable-strip to prevent host "install" command to use "-s", which won't work for target binaries:
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
@@ -50,6 +51,7 @@ termux_step_pre_configure() {
 	CPPFLAGS+=" -DHAVE_ATTRIBUTE__SENTINEL__=1 -DBROKEN_SETRESGID"
 	LD=$CC # Needed to link the binaries
 	LDFLAGS+=" -llog" # liblog for android logging in syslog hack
+	LDFLAGS+=" -ltermux-auth" # libtermux-auth for password auth
 }
 
 termux_step_post_configure() {
@@ -61,7 +63,7 @@ termux_step_post_configure() {
 termux_step_post_make_install () {
 	# "PrintMotd no" is due to our login program already showing it.
 	# OpenSSH 7.0 disabled ssh-dss by default, keep it for a while in Termux:
-	echo -e "PrintMotd no\nPasswordAuthentication no\nPubkeyAcceptedKeyTypes +ssh-dss\nSubsystem sftp $TERMUX_PREFIX/libexec/sftp-server" > $TERMUX_PREFIX/etc/ssh/sshd_config
+	echo -e "PrintMotd no\nPasswordAuthentication yes\nPubkeyAcceptedKeyTypes +ssh-dss\nSubsystem sftp $TERMUX_PREFIX/libexec/sftp-server" > $TERMUX_PREFIX/etc/ssh/sshd_config
 	printf "PubkeyAcceptedKeyTypes +ssh-dss\nSendEnv LANG\n" > $TERMUX_PREFIX/etc/ssh/ssh_config
 	cp $TERMUX_PKG_BUILDER_DIR/source-ssh-agent.sh $TERMUX_PREFIX/bin/source-ssh-agent
 	cp $TERMUX_PKG_BUILDER_DIR/ssh-with-agent.sh $TERMUX_PREFIX/bin/ssha