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openbsd_privdrop.py 0.1.2: add fattr to pledge_promises #560

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Aug 19, 2024
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openbsd_privdrop.py 0.1.2: add fattr to pledge_promises #560

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17 changes: 13 additions & 4 deletions python/openbsd_privdrop.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
# Copyright (c) 2022 Alvar Penning <[email protected]>
# Copyright (c) 2022, 2024 Alvar Penning <[email protected]>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
Expand Down Expand Up @@ -27,9 +27,17 @@
#
# - https://man.openbsd.org/pledge.2
# - https://man.openbsd.org/unveil.2
#
# The config options for the SETTINGS below are:
# - plugins.var.python.openbsd_privdrop.pledge_promises
# - plugins.var.python.openbsd_privdrop.pledge_execpromises
# - plugins.var.python.openbsd_privdrop.unveil

# History:
#
# 2024-08-19, Alvar Penning <[email protected]>
# version 0.1.2: add fattr to pledge_promises and a bit more documentation
#
# 2022-11-09, Alvar Penning <[email protected]>
# version 0.1.1: sane defaults for unveil
#
Expand All @@ -45,13 +53,13 @@

SCRIPT_NAME = "openbsd_privdrop"
SCRIPT_AUTHOR = "Alvar Penning <[email protected]>"
SCRIPT_VERSION = "0.1.1"
SCRIPT_VERSION = "0.1.2"
SCRIPT_LICENSE = "ISC"
SCRIPT_DESC = "Drop WeeChat's privileges through OpenBSD's pledge(2) and unveil(2)."

SETTINGS = {
"pledge_promises": (
"stdio rpath wpath cpath dpath inet flock unix dns sendfd recvfd tty proc error",
"stdio rpath wpath cpath dpath inet fattr flock unix dns sendfd recvfd tty proc error",
"List of promises for pledge(2).",
),
"pledge_execpromises": (
Expand All @@ -64,7 +72,8 @@
# This may be tightened, especially if WeeChat is not run as a separate user.
"~:rwc",
# WeeChat `stat`s /home while building the path to /home/$USER/...
# Might be changed if the home directory lies somehwere else.
# Might be changed if the home directory lies somewhere else.
# This happens by weechat_mkdir_parents calls, e.g., from logger_create_directory.
"/home:r",
# Other scripts might load some library or a third-party Python modules later.
"/usr/local/lib:r",
Expand Down
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