This add that "well-known" group to the system database and changes
hotplug default rules to assign /dev/tty[A-Za-z]+[0-9]+ nodes
to this new group.
Background is to allow more fine-granulated permissions, e.g.
for daemons like ser2net which make UART ports available via network
and thus should not run as root when avoidable.
Signed-off-by: Michael Heimpold <m...@heimpold.de>
---
package/base-files/files/etc/group | 1 +
package/system/procd/files/hotplug.json | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/package/base-files/files/etc/group
b/package/base-files/files/etc/group
index e8e2adf4ac..723a3832e8 100644
--- a/package/base-files/files/etc/group
+++ b/package/base-files/files/etc/group
@@ -3,6 +3,7 @@ daemon:x:1:
adm:x:4:
tty:x:5:
mail:x:8:
+dialout:x:20:
audio:x:29:
www-data:x:33:
ftp:x:55:
diff --git a/package/system/procd/files/hotplug.json
b/package/system/procd/files/hotplug.json
index 1c949bbea3..4221e15fe9 100644
--- a/package/system/procd/files/hotplug.json
+++ b/package/system/procd/files/hotplug.json
@@ -20,6 +20,10 @@
[ "regex", "DEVNAME", "^snd" ],
[ "makedev", "/dev/%DEVNAME%",
"0660", "audio" ]
],
+ [ "if",
+ [ "regex", "DEVNAME",
"^tty[A-Za-z]+[0-9]+" ],
+ [ "makedev", "/dev/%DEVNAME%",
"0660", "dialout" ]
+ ],
[ "if",
[ "has", "DEVNAME" ],
[ "makedev", "/dev/%DEVNAME%",
"0600" ]
--
2.17.1
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