Use new API of libassuan 3
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	• gniibe
	Jul 24 2023, 3:30 AM

Description

New libassuan supports sendfd feature for Windows.
It also has an API of assuan_sock_accept.
It also encourages use of gpgrt_set_syscall_clamp and removing use of ASSUAN_SYSTEM_NPTH.

Let us adopt new API.

Revisions and Commits

rG GnuPG
	rG9dd8fd4ae445 g13: Fix for new assuan_control.
	rG0821ceebfb7a agent,dirmgr,gpg,g13,kbx,scd,sm,tmp2d: Remove ASSUAN_SYSTEM_NPTH.
	rG1d73806972b1 gpg,agent,kbx,sm,scd,tpm2d,g13: Use assuan_control.
	rG0d20b79ab798 build: Require libassuan 3.0.0 or later.

Related Objects
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Status	Assigned	Task
Open	None	T6508 Port GnuPG to 64-bit Windows
Testing	• gniibe	T6599 INT2FD and npth_accept
Resolved	• gniibe	T6606 Use new API of libassuan 3
Resolved	• gniibe	T5914 libassuan: Introduce use of gpgrt_get_syscall_clamp, no use of system_hooks for nPTH
Testing	• gniibe	T6487 libassuan: Clear semantics for assuan_get_pid and improve use cases for process control
Resolved	• gniibe	T5925 libassuan: Add assuan_sock_accept function to the API
Resolved	• gniibe	T6625 libassuan: Add assuan_control function
Resolved	• gniibe	T6236 libassuan: Support sendfd/recvfd (possibly by new API) on Windows

Event Timeline

• gniibe triaged this task as Normal priority.Jul 24 2023, 3:30 AM

• gniibe created this task.

• gniibe created this object with edit policy "Contributor (Project)".

Pushed the change in gniibe/t6606 branch.

More care is needed to be perfect; There are places in GnuPG where assuan_sock_connect may be used before syscall clamp set up (after the first assuan_sock_bind failure).

Applied the changes for libassuan T6487 into gniibe/t6606.

gnupg change: rG9eb8cb642f06: agent: Use new libassuan API for pipe server process.

In T6606#173044, @gniibe wrote:

More care is needed to be perfect; There are places in GnuPG where assuan_sock_connect may be used before syscall clamp set up (after the first assuan_sock_bind failure).

Created the task: T6625: libassuan: Add assuan_control function