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From 6549ac61c997af9a96d13cb4ae94d1a7b1993762 Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Tue, 18 Dec 2018 17:34:35 +0100
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Subject: [PATCH] iplink: fix incorrect any address handling for ip tunnels
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1626304
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Upstream Status: iproute2.git commit fa1e658e84ab2
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commit fa1e658e84ab267bb98955e44774831bb36f3861
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Author: Hangbin Liu <liuhangbin@gmail.com>
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Date: Tue Sep 18 17:48:40 2018 +0800
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iplink: fix incorrect any address handling for ip tunnels
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After commit d42c7891d26e4 ("utils: Do not reset family for default, any,
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all addresses"), when call get_addr() for any/all addresses, we will set
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addr->flags to ADDRTYPE_INET_UNSPEC if family is AF_INET/AF_INET6, which
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makes is_addrtype_inet() checking passed and assigns incorrect address
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to kernel. The ip link cmd will return error like:
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]# ip link add ipip1 type ipip local any remote 1.1.1.1
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RTNETLINK answers: Numerical result out of range
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Fix it by using is_addrtype_inet_not_unspec() to avoid unspec addresses.
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geneve, vxlan are not affected as they use AF_UNSPEC family when call
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get_addr()
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Reported-by: Jianlin Shi <jishi@redhat.com>
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Fixes: d42c7891d26e4 ("utils: Do not reset family for default, any, all addresses")
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Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
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Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
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---
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ip/link_gre.c | 4 ++--
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ip/link_gre6.c | 4 ++--
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ip/link_ip6tnl.c | 4 ++--
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ip/link_iptnl.c | 4 ++--
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ip/link_vti.c | 4 ++--
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ip/link_vti6.c | 4 ++--
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6 files changed, 12 insertions(+), 12 deletions(-)
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diff --git a/ip/link_gre.c b/ip/link_gre.c
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index ede761b..1ee7ee1 100644
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--- a/ip/link_gre.c
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+++ b/ip/link_gre.c
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@@ -395,9 +395,9 @@ get_failed:
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addattr32(n, 1024, IFLA_GRE_OKEY, okey);
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addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2);
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addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2);
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- if (is_addrtype_inet(&saddr))
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+ if (is_addrtype_inet_not_unspec(&saddr))
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addattr_l(n, 1024, IFLA_GRE_LOCAL, saddr.data, saddr.bytelen);
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- if (is_addrtype_inet(&daddr))
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+ if (is_addrtype_inet_not_unspec(&daddr))
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addattr_l(n, 1024, IFLA_GRE_REMOTE, daddr.data, daddr.bytelen);
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addattr_l(n, 1024, IFLA_GRE_PMTUDISC, &pmtudisc, 1);
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if (ignore_df)
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diff --git a/ip/link_gre6.c b/ip/link_gre6.c
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index 181b2ea..20f9305 100644
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--- a/ip/link_gre6.c
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+++ b/ip/link_gre6.c
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@@ -424,9 +424,9 @@ get_failed:
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addattr32(n, 1024, IFLA_GRE_OKEY, okey);
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addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2);
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addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2);
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- if (is_addrtype_inet(&saddr))
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+ if (is_addrtype_inet_not_unspec(&saddr))
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addattr_l(n, 1024, IFLA_GRE_LOCAL, saddr.data, saddr.bytelen);
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- if (is_addrtype_inet(&daddr))
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+ if (is_addrtype_inet_not_unspec(&daddr))
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addattr_l(n, 1024, IFLA_GRE_REMOTE, daddr.data, daddr.bytelen);
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if (link)
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addattr32(n, 1024, IFLA_GRE_LINK, link);
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diff --git a/ip/link_ip6tnl.c b/ip/link_ip6tnl.c
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index c7fef2e..cfe2c5a 100644
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--- a/ip/link_ip6tnl.c
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+++ b/ip/link_ip6tnl.c
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@@ -320,11 +320,11 @@ get_failed:
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return 0;
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}
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- if (is_addrtype_inet(&saddr)) {
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+ if (is_addrtype_inet_not_unspec(&saddr)) {
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addattr_l(n, 1024, IFLA_IPTUN_LOCAL,
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saddr.data, saddr.bytelen);
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}
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- if (is_addrtype_inet(&daddr)) {
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+ if (is_addrtype_inet_not_unspec(&daddr)) {
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addattr_l(n, 1024, IFLA_IPTUN_REMOTE,
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daddr.data, daddr.bytelen);
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}
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diff --git a/ip/link_iptnl.c b/ip/link_iptnl.c
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index 57f4d0c..7ec1594 100644
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--- a/ip/link_iptnl.c
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+++ b/ip/link_iptnl.c
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@@ -325,11 +325,11 @@ get_failed:
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return 0;
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}
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- if (is_addrtype_inet(&saddr)) {
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+ if (is_addrtype_inet_not_unspec(&saddr)) {
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addattr_l(n, 1024, IFLA_IPTUN_LOCAL,
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saddr.data, saddr.bytelen);
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}
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- if (is_addrtype_inet(&daddr)) {
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+ if (is_addrtype_inet_not_unspec(&daddr)) {
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addattr_l(n, 1024, IFLA_IPTUN_REMOTE,
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daddr.data, daddr.bytelen);
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}
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diff --git a/ip/link_vti.c b/ip/link_vti.c
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index 6196a1c..3fff441 100644
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--- a/ip/link_vti.c
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+++ b/ip/link_vti.c
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@@ -157,9 +157,9 @@ get_failed:
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addattr32(n, 1024, IFLA_VTI_IKEY, ikey);
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addattr32(n, 1024, IFLA_VTI_OKEY, okey);
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- if (is_addrtype_inet(&saddr))
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+ if (is_addrtype_inet_not_unspec(&saddr))
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addattr_l(n, 1024, IFLA_VTI_LOCAL, saddr.data, saddr.bytelen);
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- if (is_addrtype_inet(&daddr))
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+ if (is_addrtype_inet_not_unspec(&daddr))
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addattr_l(n, 1024, IFLA_VTI_REMOTE, daddr.data, daddr.bytelen);
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addattr32(n, 1024, IFLA_VTI_FWMARK, fwmark);
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if (link)
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diff --git a/ip/link_vti6.c b/ip/link_vti6.c
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index 4263615..f5a267a 100644
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--- a/ip/link_vti6.c
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+++ b/ip/link_vti6.c
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@@ -159,9 +159,9 @@ get_failed:
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addattr32(n, 1024, IFLA_VTI_IKEY, ikey);
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addattr32(n, 1024, IFLA_VTI_OKEY, okey);
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- if (is_addrtype_inet(&saddr))
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+ if (is_addrtype_inet_not_unspec(&saddr))
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addattr_l(n, 1024, IFLA_VTI_LOCAL, saddr.data, saddr.bytelen);
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- if (is_addrtype_inet(&daddr))
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+ if (is_addrtype_inet_not_unspec(&daddr))
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addattr_l(n, 1024, IFLA_VTI_REMOTE, daddr.data, daddr.bytelen);
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addattr32(n, 1024, IFLA_VTI_FWMARK, fwmark);
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if (link)
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--
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1.8.3.1
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