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core: only set IPv6 hop_limit for values greater than zero

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A "Cur Hop Limit" field value of 0 in a router advertisement means
"unspecified by this router" and should not be set in the kernel.
This commit is contained in:
Christian Hesse 2014-09-15 11:35:53 +02:00 • committed by Dan Williams
parent c0ecd2f628
commit c668297257
1 changed files with 3 additions and 1 deletions
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4
src/devices/nm-device.c
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@ -3649,7 +3649,9 @@ rdisc_config_changed (NMRDisc *rdisc, NMRDiscConfigMap changed, NMDevice *self)
}
}
if (changed & NM_RDISC_CONFIG_HOP_LIMIT) {
/* hop_limit == 0 is a special value "unspecified", so do not touch
* in this case */
if (changed & NM_RDISC_CONFIG_HOP_LIMIT && rdisc->hop_limit > 0) {
char val[16];
g_snprintf (val, sizeof (val), "%d", rdisc->hop_limit);