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List:       busybox
Subject:    [PATCH] ifupdown: specify unique lease files for each interface
From:       Christoph Gysin <christoph.gysin () gmail ! com>
Date:       2015-12-01 18:23:45
Message-ID: 1448994225-10259-1-git-send-email-christoph.gysin () gmail ! com
[Download RAW message or body]

If multiple interfaces are running dhclient, the lease file can get corrupted.

This specifies unique lease files per interface.
---
 networking/ifupdown.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index 766dfab..6c4732e 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -527,7 +527,10 @@ static const struct dhcp_client_t ext_dhcp_clients[] = {
 		"dhcpcd -k %iface%",
 	},
 	{ "dhclient",
-		"dhclient -pf /var/run/dhclient.%iface%.pid %iface%",
+		"dhclient"
+			" -pf /var/run/dhclient.%iface%.pid"
+			" -lf /var/lib/dhcp/dhclient.%iface%.leases"
+			" %iface%",
 		"kill -9 `cat /var/run/dhclient.%iface%.pid` 2>/dev/null",
 	},
 	{ "pump",
-- 
2.6.2

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