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iproute2: fix ip monitor can't work when NET_NS is not enabled 

The bug appeared in v4.1.0 and was fixed since v4.8.0

Fixes FS#620

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
owl
Yousong Zhou 2017-03-17 17:49:29 +08:00
parent 0694d08c84
commit 312b9dcd65
2 changed files with 41 additions and 1 deletions
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2
package/network/utils/iproute2/Makefile
View File

@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=iproute2
PKG_VERSION:=4.4.0
PKG_RELEASE:=8
PKG_RELEASE:=9
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
PKG_SOURCE_URL:=@KERNEL/linux/utils/net/iproute2

40
package/network/utils/iproute2/patches/960-ipmonitor-fix-ip-monitor-can-t-work-when-NET_NS-is-n.patch Normal file
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@ -0,0 +1,40 @@
From c44003f7e7254ac972eaa1b22a686471ea4ce2d7 Mon Sep 17 00:00:00 2001
From: Liping Zhang <liping.zhang@spreadtrum.com>
Date: Tue, 20 Sep 2016 02:09:02 -0700
Subject: [PATCH] ipmonitor: fix ip monitor can't work when NET_NS is not
enabled
In ip monitor, netns_map_init will check getnsid is supported or not.
But when /proc/self/ns/net does not exist, we just print out error
messages and exit. So user cannot use ip monitor anymore when
CONFIG_NET_NS is disabled:
# ip monitor
open("/proc/self/ns/net"): No such file or directory
If open "/proc/self/ns/net" failed, set have_rtnl_getnsid to false.
Fixes: d652ccbf8195 ("netns: allow to dump and monitor nsid")
Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
---
ip/ipnetns.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/ip/ipnetns.c b/ip/ipnetns.c
index af87065..ccc652c 100644
--- a/ip/ipnetns.c
+++ b/ip/ipnetns.c
@@ -72,8 +72,8 @@ static int ipnetns_have_nsid(void)
if (have_rtnl_getnsid < 0) {
fd = open("/proc/self/ns/net", O_RDONLY);
if (fd < 0) {
- perror("open(\"/proc/self/ns/net\")");
- exit(1);
+ have_rtnl_getnsid = 0;
+ return 0;
}
addattr32(&req.n, 1024, NETNSA_FD, fd);
--
2.6.4