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rule_linux: convert IIFNAME and OIFNAME to null terminated string

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Strings in GO is not null-terminated while linux is written by
C and strings in C is null-terminated. Request will fail if we
perform rule request with not null-terminated iifname or ofiname,
with error message "no such file or directory".

Signed-off-by: Wu Zongyong <wuzongyong@linux.alibaba.com>
This commit is contained in:
Wu Zongyong 2020-08-18 16:30:53 +08:00 committed by Vish (Ishaya) Abrams
parent 6efc62b265
commit e909d4e8ec
1 changed files with 2 additions and 2 deletions
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4
rule_linux.go
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@ -142,10 +142,10 @@ func ruleHandle(rule *Rule, req *nl.NetlinkRequest) error {
}
}
if rule.IifName != "" {
req.AddData(nl.NewRtAttr(nl.FRA_IIFNAME, []byte(rule.IifName)))
req.AddData(nl.NewRtAttr(nl.FRA_IIFNAME, []byte(rule.IifName+"\x00")))
}
if rule.OifName != "" {
req.AddData(nl.NewRtAttr(nl.FRA_OIFNAME, []byte(rule.OifName)))
req.AddData(nl.NewRtAttr(nl.FRA_OIFNAME, []byte(rule.OifName+"\x00")))
}
if rule.Goto >= 0 {
msg.Type = nl.FR_ACT_GOTO