compiling and adding openssl for QT android apk

AMOL

Hey QTmasters anyone can help me with QT android openssl issue?

ISSUE:
QSslSocket::supportsSsl() return me false while running on android but on windows it is working fine

I tried to use prebuilt openssl but still it is not working

also I tried to build openssl for QT android form this link
https://www.tal.org/tutorials/openssl_qt_android

still issue has not resolved

CAn you help me with this?
Thanks in advance:)

sierdzio

Is SSL linked and deployed? Do you get any warnings? Which Android version you test this on?

AMOL

@sierdzio ssl link means add extra libraries in build android apk right?

I get this error:
library "/system/lib/libcrypto.so" ("/system/lib/libcrypto.so") needed or dlopened by "/data/app/org.qtproject.example.Airtls-aXxH4nLGzc1Ll3UqvzQlWg==/lib/arm/libQt5Core.so" is not accessible for the namespace: [name="classloader-namespace", ld_library_paths="", default_library_paths="/data/app/org.qtproject.example.Airtls-aXxH4nLGzc1Ll3UqvzQlWg==/lib/arm:/data/app/org.qtproject.example.Airtls-aXxH4nLGzc1Ll3UqvzQlWg==/base.apk!/lib/armeabi-v7a", permitted_paths="/data:/mnt/expand:/data/data

I am using Android version 10

sierdzio

Yes, SSL libraries have to be bundled together with your APK (also, remember about exports restrictions).

You have this done if you followed the second link you have shared:

contains(ANDROID_TARGET_ARCH,armeabi-v7a) {
    ANDROID_EXTRA_LIBS = \
        $$PWD/3rdparty/openssl-armv7/libcrypto.so \
        $$PWD/3rdparty/openssl-armv7/libssl.so
}

But it looks like Android is trying to load a different implementation from /system. Perhaps Google changed something again in Android 10 :( Or the paths are wrong and APK does not really contain these .so files.

AMOL

when I tried to check suport for openssl QT android
using
qDebug() << "sslsslssl==="<<QSslSocket::supportsSsl() << QSslSocket::sslLibraryBuildVersionString();

It gives me
sslsslssl=== false "OpenSSL 1.1.1b 26 Feb 2019"

sierdzio

Huh, that's bizarre. Looks like it does see the SSL libs but cannot use them? Weird. Sorry, I don't think I know how to solve it. The only thing that comes to my mind is that perhaps you are using old Qt which expects OpenSSL 1.0 instead of 1.1.

AMOL

@sierdzio Ohhh

I am using
QT creator 4.9.1
Qt based on QT 5.13.0

android NDK version 20.0.5594570
android sdk version 26.1.1

sierdzio

Qt 5.13 is recent enough, I think, but you can check with 5.14.1 just to be sure.

AMOL

@sierdzio I cheked that too but same issue

ekkescorner

@AMOL have you tried libs from https://github.com/KDAB/android_openssl

AMOL

@ekkescorner yes I have tried this also

AMOL

Good news!!! I am able to resolve issue, Reason is I have to use QT 5.13.1 instead of 5.13.0.
Thank you all for helping me out and suggesting different solution.
Good day and Happy coding!!! :) :) :)