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n_signer/packaging/qubes/rpc/qubes.NsignerRpc

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#!/bin/sh
# qubes.NsignerRpc — qrexec service entrypoint for n_signer.
#
# This is a STATELESS BRIDGE: it relays one framed JSON-RPC request from
# qrexec stdin to a persistent nsigner process listening on an abstract
# unix socket, and relays the response back to qrexec stdout.
#
# The persistent signer (started separately by the human, with the mnemonic
# in mlock'd RAM) must be running with:
# nsigner --listen unix --socket-name nsigner --bridge-source-trusted
#
# This bridge holds NO secrets and NO mnemonic. It is a dumb pipe.
# QREXEC_REMOTE_DOMAIN (set by the qrexec framework) is relayed to the
# signer as a source-qube preamble so the signer tags the caller as
# qubes:<source-vm>.
#
# The binary is installed by install_qube_fips_nsigner.sh to
# /home/user/.local/bin/nsigner
exec /home/user/.local/bin/nsigner bridge --to nsigner