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Fix/match tcp port range #48

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Merged
singchia merged 2 commits into from
Dec 19, 2024
Merged

Fix/match tcp port range #48

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9e2c67b
fix: miss concat args
Dec 19, 2024
c34034f
fix: udp match port range
Dec 19, 2024
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73 changes: 41 additions & 32 deletions iptables/match.go
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Original file line number Diff line number Diff line change
Expand Up @@ -9531,23 +9531,22 @@ func (mTCP *MatchTCP) Short() string {
func (mTCP *MatchTCP) ShortArgs() []string {
args := make([]string, 0, 17)
args = append(args, "-m", mTCP.matchType.String())
if mTCP.SrcPortMin > -1 {
if mTCP.SrcPortMin > -1 && mTCP.SrcPortMax > -1 {
args = append(args, "--sport", strconv.Itoa(mTCP.SrcPortMin)+":"+strconv.Itoa(mTCP.SrcPortMax))
} else if mTCP.SrcPortMin > -1 {
if mTCP.SrcPortInvert {
args = append(args, "!")
}
args = append(args, "--sport", strconv.Itoa(mTCP.SrcPortMin))
if mTCP.SrcPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mTCP.SrcPortMax))
}
}
if mTCP.DstPortMin > -1 {

if mTCP.DstPortMin > -1 && mTCP.DstPortMax > -1 {
args = append(args, "--dport", strconv.Itoa(mTCP.DstPortMin)+":"+strconv.Itoa(mTCP.DstPortMax))
} else if mTCP.DstPortMin > -1 {
if mTCP.DstPortInvert {
args = append(args, "!")
}
args = append(args, "--dport", strconv.Itoa(mTCP.DstPortMin))
if mTCP.DstPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mTCP.DstPortMax))
}
}
if mTCP.FlagsMask != 0 && mTCP.FlagsSet != 0 {
if mTCP.FlagsInvert {
Expand All @@ -9571,24 +9570,24 @@ func (mTCP *MatchTCP) Long() string {
func (mTCP *MatchTCP) LongArgs() []string {
args := make([]string, 0, 17)
args = append(args, "-m", mTCP.matchType.String())
if mTCP.SrcPortMin > -1 {
if mTCP.SrcPortMin > -1 && mTCP.SrcPortMax > -1 {
args = append(args, "--source-port", strconv.Itoa(mTCP.SrcPortMin)+":"+strconv.Itoa(mTCP.SrcPortMax))
} else if mTCP.SrcPortMin > -1 {
if mTCP.SrcPortInvert {
args = append(args, "!")
}
args = append(args, "--source-port", strconv.Itoa(mTCP.SrcPortMin))
if mTCP.SrcPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mTCP.SrcPortMax))
}
}
if mTCP.DstPortMin > -1 {

if mTCP.DstPortMin > -1 && mTCP.DstPortMax > -1 {
args = append(args, "--destination-port", strconv.Itoa(mTCP.DstPortMin)+":"+strconv.Itoa(mTCP.DstPortMax))
} else if mTCP.DstPortMin > -1 {
if mTCP.DstPortInvert {
args = append(args, "!")
}
args = append(args, "--destination-port", strconv.Itoa(mTCP.DstPortMin))
if mTCP.DstPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mTCP.DstPortMax))
}
}

if mTCP.FlagsMask != 0 && mTCP.FlagsSet != 0 {
if mTCP.FlagsInvert {
args = append(args, "!")
Expand Down Expand Up @@ -10315,23 +10314,28 @@ func (mUDP *MatchUDP) Short() string {
func (mUDP *MatchUDP) ShortArgs() []string {
args := make([]string, 0, 17)
args = append(args, "-m", mUDP.matchType.String())
if mUDP.SrcPortMin > -1 {
if mUDP.SrcPortMin > -1 && mUDP.SrcPortMax > -1 {
if mUDP.SrcPortInvert {
args = append(args, "!")
}
args = append(args, "--sport", strconv.Itoa(mUDP.SrcPortMin))
if mUDP.SrcPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mUDP.SrcPortMax))
args = append(args, "--sport", strconv.Itoa(mUDP.SrcPortMin)+":"+strconv.Itoa(mUDP.SrcPortMax))
} else if mUDP.SrcPortMin > -1 {
if mUDP.SrcPortInvert {
args = append(args, "!")
}
args = append(args, "--sport", strconv.Itoa(mUDP.SrcPortMin))
}
if mUDP.DstPortMin > -1 {

if mUDP.DstPortMin > -1 && mUDP.DstPortMax > -1 {
if mUDP.DstPortInvert {
args = append(args, "!")
}
args = append(args, "--dport", strconv.Itoa(mUDP.DstPortMin))
if mUDP.DstPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mUDP.DstPortMax))
args = append(args, "--dport", strconv.Itoa(mUDP.DstPortMin)+":"+strconv.Itoa(mUDP.DstPortMax))
} else if mUDP.DstPortMin > -1 {
if mUDP.DstPortInvert {
args = append(args, "!")
}
args = append(args, "--dport", strconv.Itoa(mUDP.DstPortMin))
}
return args
}
Expand All @@ -10343,23 +10347,28 @@ func (mUDP *MatchUDP) Long() string {
func (mUDP *MatchUDP) LongArgs() []string {
args := make([]string, 0, 17)
args = append(args, "-m", mUDP.matchType.String())
if mUDP.SrcPortMin > -1 {
if mUDP.SrcPortMin > -1 && mUDP.SrcPortMax > -1 {
if mUDP.SrcPortInvert {
args = append(args, "!")
}
args = append(args, "--source-port", strconv.Itoa(mUDP.SrcPortMin))
if mUDP.SrcPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mUDP.SrcPortMax))
args = append(args, "--source-port", strconv.Itoa(mUDP.SrcPortMin)+":"+strconv.Itoa(mUDP.SrcPortMax))
} else if mUDP.SrcPortMin > -1 {
if mUDP.SrcPortInvert {
args = append(args, "!")
}
args = append(args, "--source-port", strconv.Itoa(mUDP.SrcPortMin))
}
if mUDP.DstPortMin > -1 {

if mUDP.DstPortMin > -1 && mUDP.DstPortMax > -1 {
if mUDP.DstPortInvert {
args = append(args, "!")
}
args = append(args, "--destination-port", strconv.Itoa(mUDP.DstPortMin))
if mUDP.DstPortMax > -1 {
args = append(args, ":"+strconv.Itoa(mUDP.DstPortMax))
args = append(args, "--destination-port", strconv.Itoa(mUDP.DstPortMin)+":"+strconv.Itoa(mUDP.DstPortMax))
} else if mUDP.DstPortMin > -1 {
if mUDP.DstPortInvert {
args = append(args, "!")
}
args = append(args, "--destination-port", strconv.Itoa(mUDP.DstPortMin))
}
return args
}
Expand Down
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