fix: nftables interval end overflow EEXIST for max-address ranges - #4319
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fix: nftables interval end overflow EEXIST for max-address ranges#4319H-TTTTT wants to merge 1 commit into
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route_exclude_address ranges that reach 255.255.255.255 / ffff:...:ffff made nftablesCreateIPSet encode a duplicate interval start/end key. Point sing-tun at the fix that omits the exclusive end when Next() overflows (H-TTTTT/sing-tun@8775818, SagerNet/sing-tun#83). Fixes SagerNet#4316
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Summary
auto_redirect+route_exclude_addressCIDRs whose upper bound is the address-family max (ff00::/8,240.0.0.0/4, …) failed setup with nftables EEXIST (file exists).sing-tunnftablesCreateIPSet: whenTo().Next()overflows, the end key was set equal to the start key.github.com/sagernet/sing-tunwith the fix from fix: omit nftables interval end when range hits max address sing-tun#83 (H-TTTTT/sing-tun@8775818), which omits the exclusive interval-end element so the range covers through the max address.Note for maintainers: drop the
replaceand bump to an officialsing-tuntag/commit once SagerNet/sing-tun#83 is merged.Test plan
route_exclude_address: ["ff00::/8"]withauto_redirect: truestarts cleanly240.0.0.0/4/224.0.0.0/3also workFixes #4316