Add dns.cache_capacity

docs/configuration/dns/index.md

@@ -1,3 +1,12 @@
+---
+icon: material/new
+---
+
+
+!!! quote "Changes in sing-box 1.11.0"
+
+    :material-plus: [cache_capacity](#cache_capacity)
+
 !!! quote "Changes in sing-box 1.9.0"
 
     :material-plus: [client_subnet](#client_subnet)
@@ -16,6 +25,7 @@
     "disable_cache": false,
     "disable_expire": false,
     "independent_cache": false,
+    "cache_capacity": 0,
     "reverse_mapping": false,
     "client_subnet": "",
     "fakeip": {}
@@ -58,6 +68,14 @@ Disable dns cache expire.
 
 Make each DNS server's cache independent for special purposes. If enabled, will slightly degrade performance.
 
+#### cache_capacity
+
+!!! quote "Since sing-box 1.11.0"
+
+LRU cache capacity.
+
+Value less than 1024 will be ignored.
+
 #### reverse_mapping
 
 Stores a reverse mapping of IP addresses after responding to a DNS query in order to provide domain names when routing.

docs/configuration/dns/index.zh.md

@@ -1,4 +1,12 @@
-!!! quote "sing-box 1.9.0 中的更改"
+---
+icon: material/new
+---
+
+!!! quote "自 sing-box 1.11.0 起"
+
+    :material-plus: [cache_capacity](#cache_capacity)
+
+!!! quote "自 sing-box 1.9.0 起"
 
     :material-plus: [client_subnet](#client_subnet)
 
@@ -16,6 +24,7 @@
     "disable_cache": false,
     "disable_expire": false,
     "independent_cache": false,
+    "cache_capacity": 0,
     "reverse_mapping": false,
     "client_subnet": "",
     "fakeip": {}
@@ -57,6 +66,14 @@
 
 使每个 DNS 服务器的缓存独立，以满足特殊目的。如果启用，将轻微降低性能。
 
+#### cache_capacity
+
+!!! quote "自 sing-box 1.11.0 起"
+
+LRU 缓存容量。
+
+小于 1024 的值将被忽略。
+
 #### reverse_mapping
 
 在响应 DNS 查询后存储 IP 地址的反向映射以为路由目的提供域名。

go.mod

@@ -25,8 +25,8 @@ require (
 	github.com/sagernet/gvisor v0.0.0-20241021032506-a4324256e4a3
 	github.com/sagernet/quic-go v0.48.1-beta.1
 	github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
-	github.com/sagernet/sing v0.6.0-alpha.9
+	github.com/sagernet/sing v0.6.0-alpha.10
-	github.com/sagernet/sing-dns v0.4.0-alpha.1
+	github.com/sagernet/sing-dns v0.4.0-alpha.2
 	github.com/sagernet/sing-mux v0.3.0-alpha.1
 	github.com/sagernet/sing-quic v0.3.0-rc.2
 	github.com/sagernet/sing-shadowsocks v0.2.7

go.sum

@@ -110,10 +110,10 @@ github.com/sagernet/quic-go v0.48.1-beta.1/go.mod h1:1WgdDIVD1Gybp40JTWketeSfKA/
 github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691 h1:5Th31OC6yj8byLGkEnIYp6grlXfo1QYUfiYFGjewIdc=
 github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4WkQ1PwNnrVMM6KyuFR20pU8jYBD+A4EhJovEXU=
 github.com/sagernet/sing v0.2.18/go.mod h1:OL6k2F0vHmEzXz2KW19qQzu172FDgSbUSODylighuVo=
-github.com/sagernet/sing v0.6.0-alpha.9 h1:tOeHdRECQwe9R/1edVHbckF/IBoJoGzqhHRnHsNAQb8=
+github.com/sagernet/sing v0.6.0-alpha.10 h1:gIUiFof6SDDcAg3m3pUOshOPZBLC7z9VCgDt4Tzs24g=
-github.com/sagernet/sing v0.6.0-alpha.9/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
+github.com/sagernet/sing v0.6.0-alpha.10/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
-github.com/sagernet/sing-dns v0.4.0-alpha.1 h1:2KlP8DeqtGkULFiZtvG2r7SuoJP6orANFzJwC5vDKvg=
+github.com/sagernet/sing-dns v0.4.0-alpha.2 h1:0x5WjrO+Ifk9sqJlHRz/tKENHwoEinQ8HQCHAhpJHAQ=
-github.com/sagernet/sing-dns v0.4.0-alpha.1/go.mod h1:vgHATsm4wdymwpvBZPei8RY+546iGXS6hlWv2x6YKcM=
+github.com/sagernet/sing-dns v0.4.0-alpha.2/go.mod h1:ZiXcacKL54jSSYZMbYF3qKNFkkW674Jt+85YCmK64K8=
 github.com/sagernet/sing-mux v0.3.0-alpha.1 h1:IgNX5bJBpL41gGbp05pdDOvh/b5eUQ6cv9240+Ngipg=
 github.com/sagernet/sing-mux v0.3.0-alpha.1/go.mod h1:FTcImmdfW38Lz7b+HQ+mxxOth1lz4ao8uEnz+MwIJQE=
 github.com/sagernet/sing-quic v0.3.0-rc.2 h1:7vcC4bdS1GBJzHZhfmJiH0CfzQ4mYLUW51Z2RNHcGwc=

option/dns.go

@@ -31,6 +31,7 @@ type DNSClientOptions struct {
 	DisableCache     bool                  `json:"disable_cache,omitempty"`
 	DisableExpire    bool                  `json:"disable_expire,omitempty"`
 	IndependentCache bool                  `json:"independent_cache,omitempty"`
+	CacheCapacity    uint32                `json:"cache_capacity,omitempty"`
 	ClientSubnet     *badoption.Prefixable `json:"client_subnet,omitempty"`
 }
 

route/router.go

@@ -96,6 +96,7 @@ func NewRouter(ctx context.Context, logFactory log.Factory, options option.Route
 		DisableCache:     dnsOptions.DNSClientOptions.DisableCache,
 		DisableExpire:    dnsOptions.DNSClientOptions.DisableExpire,
 		IndependentCache: dnsOptions.DNSClientOptions.IndependentCache,
+		CacheCapacity:    dnsOptions.DNSClientOptions.CacheCapacity,
 		RDRC: func() dns.RDRCStore {
 			cacheFile := service.FromContext[adapter.CacheFile](ctx)
 			if cacheFile == nil {