termux-packages VS hardened_malloc

usbredirect, USB drives/disks, Termux, termux-usb, QEMU, and Alpine Linux in action in April 2024 on an Android 11 phone that is not rooted --> Update-6, Update-7, Update-8, Update-9, Update-10 at https://github.com/termux/termux-packages/issues/19635

"USB Network Redirection protocol description version 0.7 (19 May 2014)": https://gitlab.freedesktop.org/spice/usbredir/-/blob/main/do... (gitlab.freedesktop.org/spice/usbredir/-/blob/main/docs/usb-redirection-protocol.md)

"How to use Spice "Open remote computing"" Hans de Goede "@ T-DOSE 2011, Eindhoven": https://www.youtube.com/watch?v=e1fC3GOTHOY (www.youtube.com/watch?v=e1fC3GOTHOY)

Phone (not rooted) running Android 11 and Termux doing superuser/root operations on a USB flash drive connected to the phone, for example "cryptsetup luksFormat /dev/sda1" and "mkfs.ext4 /dev/mapper/v1" --> Update-6 through Update-8 and "Connecting a USB device to QEMU using termux, termux-usb, usbredirect" at https://github.com/termux/termux-packages/issues/19635 (see also Update-9, Update-10, Update-11).

Done on a phone that is not rooted running Termux, termux-usb, usbredirect, and QEMU --> "cryptsetup luksFormat /dev/sda1" and "cryptsetup luksOpen /dev/sda1 v1" and "mkfs.ext4 /dev/mapper/v1" and "mount /dev/mapper/v1 /root/1" where "/dev/sda1" is a partition on a USB flash drive ("dev/sda") plugged in the phone: https://github.com/termux/termux-packages/issues/19635 (github.com/termux/termux-packages/issues/19635'cryptsetup)

Yes. Even without enabling root, you can install Termux[1] and have a full Linux cli environment with ssh.

> don't understand not more people want to access their DCIM folder via sshfs

I agree. I sync my camera folder with Syncthing[1], so as soon as I take a photo it is available on my laptop.

1: https://termux.dev/

As usual don't forget that Android/Linux isn't GNU/Linux,

https://github.com/termux/termux-packages/wiki/Termux-and-An...

https://developer.android.com/ndk/guides/stable_apis

https://android.googlesource.com/platform/bionic/+/master/an...

With this, I was able to cross compile lone for x86_64 from within the Termux environment of my aarch64 smartphone. All I had to do was obtain the Linux user space API headers for x86_64.

I made a Termux package request for multiplatform Linux UAPI headers specifically so I could cross compile lone but unfortunately it was rejected.

https://github.com/termux/termux-packages/issues/16069

I wonder how far you could get with the git client in termux. I got vim running at one point.

[1] https://termux.dev/

[2] https://packages.termux.dev/apt/termux-main/pool/main/g/git/

Crystal can be installed with just pkg install crystal. If you have Docker, you could also clone the build environment and try building Crystal locally with scripts/run-docker.sh scripts/build-package.sh -I -a aarch64 crystal.

Relevant copypasta:

Fellow humans, there are alternatives to Google and Apple! Your neck need not be under anyone's boot! You don't even need to give up any functionality:

Data service:

The simplest thing is to buy a prepaid SIM and top it off with cash. The lovely people over at /r/nocontract maintain a big spreadsheet so you can filter by various properties of the available contracts.

Another way to go is to pay for a postpaid plan with a virtual credit card (VCC) like at privacy.com. It won't be linked to your name at the telco, but of course privacy.com knows who you are. There is also Abine Blur, and some others.

Yet a third way to go, which is nascent, is buy an eSIM with crypto. You can also buy prepaid VCCs with crypto.

An interesting new choice is PGPP https://invisv.com/pgpp/ who rotate your IMSI and do some other cool stuff. It works by e-sims.

All these methods make you /pseudo/nymous, but obviously you're still identifiable by subscriber number and possibly IMEI, to put aside correlational things like your traffic profile. You can help this problem by routing everything through a VPN. Then you're pseudonymous but the cell carrier knows nothing about you other than that you use a VPN. Pay for the VPN with crypto. Of course now the VPN provider knows your traffic, but you're much more anonymous to them than you are to a telco. You make your choices. Defense in depth. Etc.

OS:

GrapheneOS: https://grapheneos.org/ Very much like Calyx, but extra-hardened and with no MicroG. No involvement with Google at all by default. You can make a secondary profile in which you install Google Play Services to set up an environment where you can run unprivileged Play services + whatever crapware you need that requires them. Unprivileged here means it's like any other app: if you don't give it access to your location, it won't know where you are. If you end the profile session when you leave, Play Services stops running and stops talking to Google.

CalyxOS: https://calyxos.org/ Privacy-respecting Android distribution that replaces Google spyware with MicroG, so you can have your cake and eat it too. Most everything will work as you're used to, but it does still talk to Google to make that happen.

LineageOS: https://lineageos.org/ The successor to CyanogenMod, will work with many different phones. More privacy and control than stock Android.

There are also many others: Sailfish, Replicant, e

Hardware:

CalyxOS and GrapheneOS run best on Pixels. The path of least resistance is to get one of these phones and run GrapheneOS with Google Services installed in one profile or other.

You could also buy a Librem 5 https://puri.sm/products/librem-5/ If privacy and security and hacking are really important to you.

Or a pinephone: https://www.pine64.org/pinephone/

Neither work very well by regular standards, but they're cool :-)

It might be worth to switch to GrapheneOS if you have Pixel phones: https://grapheneos.org/

It is a more serious project than LineageOS in the sense that they take security very seriously and they take their development more professionally too. There are no disadvantages to using GrapheneOS compared to LineageOS.

You can see a comparison here: https://eylenburg.github.io/android_comparison.htm

If it still powers up but just won't boot you could try installing https://grapheneos.org/.

On 4thgen Pixels and up you can install GrapheneOS which is a security and privacy focused Android build. It does not come with any Google services pre-installed but you can put them on. https://grapheneos.org/

yes... will also de-google it cuz we can install GrapheneOS and also close the bootloader