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From 1d42fb941af17a29346b2af03338f8e18470f009 Mon Sep 17 00:00:00 2001
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From: Michal Ruprich <michalruprich@gmail.com>
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Date: Tue, 22 Nov 2022 12:38:05 +0100
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Subject: [PATCH] tools: Enable start of FRR for non-root user
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There might be use cases when this would make sense, for example
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running FRR in a container as a designated user.
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Signed-off-by: Michal Ruprich <mruprich@redhat.com>
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---
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tools/etc/frr/daemons | 5 +++++
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tools/frrcommon.sh.in | 4 ++++
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2 files changed, 9 insertions(+)
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diff --git a/tools/etc/frr/daemons b/tools/etc/frr/daemons
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index 8aa08871e35..2427bfff777 100644
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--- a/tools/etc/frr/daemons
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+++ b/tools/etc/frr/daemons
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@@ -91,6 +91,12 @@ pathd_options=" -A 127.0.0.1"
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# say BGP.
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#MAX_FDS=1024
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+# Uncomment this option if you want to run FRR as a non-root user. Note that
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+# you should know what you are doing since most of the daemons need root
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+# to work. This could be useful if you want to run FRR in a container
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+# for instance.
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+# FRR_NO_ROOT="yes"
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+
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# The list of daemons to watch is automatically generated by the init script.
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#watchfrr_options=""
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diff --git a/tools/frrcommon.sh.in b/tools/frrcommon.sh.in
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index 3c16c27c6df..4f095a176e4 100755
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--- a/tools/frrcommon.sh.in
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+++ b/tools/frrcommon.sh.in
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@@ -43,6 +43,10 @@ RELOAD_SCRIPT="$D_PATH/frr-reload.py"
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#
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is_user_root () {
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+ if [[ ! -z $FRR_NO_ROOT && "${FRR_NO_ROOT}" == "yes" ]]; then
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+ return 0
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+ fi
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+
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[ "${EUID:-$(id -u)}" -eq 0 ] || {
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log_failure_msg "Only users having EUID=0 can start/stop daemons"
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return 1
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diff --git a/doc/user/setup.rst b/doc/user/setup.rst
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index 25934df..51ffd32 100644
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--- a/doc/user/setup.rst
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+++ b/doc/user/setup.rst
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@@ -114,6 +114,16 @@ most operating systems is 1024. If the operator plans to run bgp with
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several thousands of peers than this is where we would modify FRR to
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allow this to happen.
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+::
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+
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+ FRR_NO_ROOT="yes"
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+
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+This option allows you to run FRR as a non-root user. Use this option
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+only when you know what you are doing since most of the daemons
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+in FRR will not be able to run under a regular user. This option
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+is useful for example when you run FRR in a container with a designated
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+user instead of root.
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+
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::
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zebra_options=" -s 90000000 --daemon -A 127.0.0.1"
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