From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Sat, 18 May 2019 03:26:59 +0000 (+0900)
Subject: util: introduce in6_addr_hash_ops
X-Git-Tag: v243-rc1~409^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2968913e648a44b625717bcea2be554470f1d167;p=thirdparty%2Fsystemd.git

util: introduce in6_addr_hash_ops
---

diff --git a/src/basic/in-addr-util.c b/src/basic/in-addr-util.c
index 1d5c6412b5b..c1fab51b5e4 100644
--- a/src/basic/in-addr-util.c
+++ b/src/basic/in-addr-util.c
@@ -738,3 +738,15 @@ static int in_addr_data_compare_func(const struct in_addr_data *x, const struct
 }
 
 DEFINE_HASH_OPS(in_addr_data_hash_ops, struct in_addr_data, in_addr_data_hash_func, in_addr_data_compare_func);
+
+static void in6_addr_hash_func(const struct in6_addr *addr, struct siphash *state) {
+        assert(addr);
+
+        siphash24_compress(addr, sizeof(*addr), state);
+}
+
+static int in6_addr_compare_func(const struct in6_addr *a, const struct in6_addr *b) {
+        return memcmp(a, b, sizeof(*a));
+}
+
+DEFINE_HASH_OPS(in6_addr_hash_ops, struct in6_addr, in6_addr_hash_func, in6_addr_compare_func);
diff --git a/src/basic/in-addr-util.h b/src/basic/in-addr-util.h
index a6a685b9188..2ca7f4b32fc 100644
--- a/src/basic/in-addr-util.h
+++ b/src/basic/in-addr-util.h
@@ -72,3 +72,4 @@ static inline size_t FAMILY_ADDRESS_SIZE(int family) {
 #define IN_ADDR_NULL ((union in_addr_union) { .in6 = {} })
 
 extern const struct hash_ops in_addr_data_hash_ops;
+extern const struct hash_ops in6_addr_hash_ops;