85 lines
2.6 KiB
Diff
85 lines
2.6 KiB
Diff
From 3979ef91de9ed17d21672aaaefd6c228485135a2 Mon Sep 17 00:00:00 2001
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From: Alexandre Cassen <acassen@freebox.fr>
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Date: Sun, 4 Apr 2010 22:40:14 +0200
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Subject: [PATCH] Detect 6rd kernel missing support / 6rd tunnel scope
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This patch fix two issues:
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* If kernel is not supporting 6rd then ioctl() call
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will return EINVAL, if so just skip perror call.
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* 6rd scope is ipv6/ip tunnels. Dont try to fetch
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6rd tunnel parms if tunnel protocol != IPPROTO_IPV6.
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Signed-off-by: Alexandre Cassen <acassen@freebox.fr>
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---
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ip/iptunnel.c | 2 +-
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ip/tunnel.c | 11 ++++++-----
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2 files changed, 7 insertions(+), 6 deletions(-)
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diff --git iproute2-2.6.33/ip/iptunnel.c iproute2-2.6.33/ip/iptunnel.c
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index 1cd9fbd..3525fbb 100644
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--- iproute2-2.6.33/ip/iptunnel.c.old
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+++ iproute2-2.6.33/ip/iptunnel.c
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@@ -365,7 +365,7 @@ static void print_tunnel(struct ip_tunnel_parm *p)
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if (!(p->iph.frag_off&htons(IP_DF)))
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printf(" nopmtudisc");
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- if (!tnl_ioctl_get_6rd(p->name, &ip6rd) && ip6rd.prefixlen) {
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+ if (p->iph.protocol == IPPROTO_IPV6 && !tnl_ioctl_get_6rd(p->name, &ip6rd) && ip6rd.prefixlen) {
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printf(" 6rd-prefix %s/%u ",
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inet_ntop(AF_INET6, &ip6rd.prefix, s1, sizeof(s1)),
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ip6rd.prefixlen);
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diff --git iproute2-2.6.33/ip/tunnel.c iproute2-2.6.33/ip/tunnel.c
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index d389e86..6efbd2d 100644
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--- iproute2-2.6.33/ip/tunnel.c.old
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+++ iproute2-2.6.33/ip/tunnel.c
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@@ -26,6 +26,7 @@
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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+#include <errno.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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@@ -168,7 +169,7 @@ int tnl_del_ioctl(const char *basedev, const char *name, void *p)
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return err;
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}
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-static int tnl_gen_ioctl(int cmd, const char *name, void *p)
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+static int tnl_gen_ioctl(int cmd, const char *name, void *p, int skiperr)
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{
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struct ifreq ifr;
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int fd;
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@@ -178,7 +179,7 @@ static int tnl_gen_ioctl(int cmd, const char *name, void *p)
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ifr.ifr_ifru.ifru_data = p;
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fd = socket(preferred_family, SOCK_DGRAM, 0);
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err = ioctl(fd, cmd, &ifr);
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- if (err)
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+ if (err && errno != skiperr)
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perror("ioctl");
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close(fd);
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return err;
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@@ -186,15 +187,15 @@ static int tnl_gen_ioctl(int cmd, const char *name, void *p)
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int tnl_prl_ioctl(int cmd, const char *name, void *p)
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{
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- return tnl_gen_ioctl(cmd, name, p);
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+ return tnl_gen_ioctl(cmd, name, p, -1);
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}
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int tnl_6rd_ioctl(int cmd, const char *name, void *p)
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{
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- return tnl_gen_ioctl(cmd, name, p);
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+ return tnl_gen_ioctl(cmd, name, p, -1);
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}
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int tnl_ioctl_get_6rd(const char *name, void *p)
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{
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- return tnl_gen_ioctl(SIOCGET6RD, name, p);
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+ return tnl_gen_ioctl(SIOCGET6RD, name, p, EINVAL);
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}
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--
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1.7.0.1
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