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auto-redirect: Fix uid rules

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世界 2024-09-14 14:32:17 +08:00
parent 2f8200267b
commit aaaacba916
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1 changed files with 112 additions and 71 deletions
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183
redirect_nftables_rules.go
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@ -9,6 +9,7 @@ import (
"github.com/sagernet/nftables"
"github.com/sagernet/nftables/binaryutil"
"github.com/sagernet/nftables/expr"
"github.com/sagernet/nftables/userdata"
"github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/ranges"
@ -245,84 +246,124 @@ func (r *autoRedirect) nftablesCreateExcludeRules(nft *nftables.Conn, table *nft
}
} else {
if len(r.tunOptions.IncludeUID) > 0 {
includeUID := &nftables.Set{
Table: table,
Anonymous: true,
Constant: true,
Interval: true,
KeyType: nftables.TypeUID,
}
err := nft.AddSet(includeUID, common.FlatMap(r.tunOptions.IncludeUID, func(it ranges.Range[uint32]) []nftables.SetElement {
return []nftables.SetElement{
{
Key: binaryutil.BigEndian.PutUint32(it.Start),
},
{
Key: binaryutil.BigEndian.PutUint32(it.End + 1),
IntervalEnd: true,
},
if len(r.tunOptions.IncludeUID) > 1 || r.tunOptions.IncludeUID[0].Start != r.tunOptions.IncludeUID[0].End {
includeUID := &nftables.Set{
Table: table,
Anonymous: true,
Constant: true,
Interval: true,
KeyType: nftables.TypeUID,
}
}))
if err != nil {
return err
err := nft.AddSet(includeUID, common.FlatMap(r.tunOptions.IncludeUID, func(it ranges.Range[uint32]) []nftables.SetElement {
return []nftables.SetElement{
{
Key: binaryutil.NativeEndian.PutUint32(it.Start),
},
{
Key: binaryutil.NativeEndian.PutUint32(it.End + 1),
IntervalEnd: true,
},
}
}))
if err != nil {
return err
}
nft.AddRule(&nftables.Rule{
Table: table,
Chain: chain,
Exprs: []expr.Any{
&expr.Meta{Key: expr.MetaKeySKUID, Register: 1},
&expr.Lookup{
SourceRegister: 1,
SetID: includeUID.ID,
SetName: includeUID.Name,
Invert: true,
},
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictReturn,
},
},
UserData: userdata.AppendString(nil, userdata.TypeComment, "not a bug :("),
})
} else {
nft.AddRule(&nftables.Rule{
Table: table,
Chain: chain,
Exprs: []expr.Any{
&expr.Meta{Key: expr.MetaKeySKUID, Register: 1},
&expr.Cmp{
Op: expr.CmpOpNeq,
Register: 1,
Data: binaryutil.BigEndian.PutUint32(r.tunOptions.IncludeUID[0].Start),
},
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictReturn,
},
},
})
}
nft.AddRule(&nftables.Rule{
Table: table,
Chain: chain,
Exprs: []expr.Any{
&expr.Meta{Key: expr.MetaKeySKUID, Register: 1},
&expr.Lookup{
SourceRegister: 1,
SetID: includeUID.ID,
SetName: includeUID.Name,
Invert: true,
},
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictReturn,
},
},
})
}
if len(r.tunOptions.ExcludeUID) > 0 {
excludeUID := &nftables.Set{
Table: table,
Anonymous: true,
Constant: true,
Interval: true,
KeyType: nftables.TypeUID,
}
err := nft.AddSet(excludeUID, common.FlatMap(r.tunOptions.ExcludeUID, func(it ranges.Range[uint32]) []nftables.SetElement {
return []nftables.SetElement{
{
Key: binaryutil.BigEndian.PutUint32(it.Start),
},
{
Key: binaryutil.BigEndian.PutUint32(it.End + 1),
IntervalEnd: true,
},
if len(r.tunOptions.ExcludeUID) > 1 || r.tunOptions.ExcludeUID[0].Start != r.tunOptions.ExcludeUID[0].End {
excludeUID := &nftables.Set{
Table: table,
Anonymous: true,
Constant: true,
Interval: true,
KeyType: nftables.TypeUID,
}
}))
if err != nil {
return err
err := nft.AddSet(excludeUID, common.FlatMap(r.tunOptions.ExcludeUID, func(it ranges.Range[uint32]) []nftables.SetElement {
return []nftables.SetElement{
{
Key: binaryutil.NativeEndian.PutUint32(it.Start),
},
{
Key: binaryutil.NativeEndian.PutUint32(it.End + 1),
IntervalEnd: true,
},
}
}))
if err != nil {
return err
}
nft.AddRule(&nftables.Rule{
Table: table,
Chain: chain,
Exprs: []expr.Any{
&expr.Meta{Key: expr.MetaKeySKUID, Register: 1},
&expr.Lookup{
SourceRegister: 1,
SetID: excludeUID.ID,
SetName: excludeUID.Name,
},
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictReturn,
},
},
UserData: userdata.AppendString(nil, userdata.TypeComment, "not a bug :("),
})
} else {
nft.AddRule(&nftables.Rule{
Table: table,
Chain: chain,
Exprs: []expr.Any{
&expr.Meta{Key: expr.MetaKeySKUID, Register: 1},
&expr.Cmp{
Op: expr.CmpOpEq,
Register: 1,
Data: binaryutil.NativeEndian.PutUint32(r.tunOptions.ExcludeUID[0].Start),
},
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictReturn,
},
},
})
}
nft.AddRule(&nftables.Rule{
Table: table,
Chain: chain,
Exprs: []expr.Any{
&expr.Meta{Key: expr.MetaKeySKUID, Register: 1},
&expr.Lookup{
SourceRegister: 1,
SetID: excludeUID.ID,
SetName: excludeUID.Name,
},
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictReturn,
},
},
})
}
}