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authorKim Alvefur <zash@zash.se>2021-07-03 03:27:57 +0200
committerKim Alvefur <zash@zash.se>2021-07-03 03:27:57 +0200
commit59d820880f0421041b72b73d1fe52aa64adce43d (patch)
tree864e49573aad4e99f61d5f0243d18979977e2be6 /util/ip.lua
parent13c5a2359d83818bfeae08b757c53fd34ed05ad8 (diff)
downloadprosody-59d820880f0421041b72b73d1fe52aa64adce43d.tar.gz
prosody-59d820880f0421041b72b73d1fe52aa64adce43d.zip
util.ip: Fix netmask for link-local address range
This may have mistakenly caused link-local addresses to be considered global. May have caused mod_s2s and prosodyctl check dns to behave incorrectly on networks using link-local IPv4 addresses. By my guesstimate, these are extremely rare. Probably minimal impact beyond a bit longer to establish s2s and some possible confusion from prosodyctl check dns results. Ref RFC 3927
Diffstat (limited to 'util/ip.lua')
-rw-r--r--util/ip.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/util/ip.lua b/util/ip.lua
index d1808225..05c4ca14 100644
--- a/util/ip.lua
+++ b/util/ip.lua
@@ -100,7 +100,7 @@ local ipv6mapped = new_ip("::ffff:0:0");
local function v4scope(ip)
if match(ip, loopback4, 8) then
return 0x2;
- elseif match(ip, linklocal4) then
+ elseif match(ip, linklocal4, 16) then
return 0x2;
else -- Global unicast
return 0xE;