platform: add hash functions for NMPlatformMptcpAddr instances

We already have two hash functions for MPTCP addresses:
nmp_object_id_hash*() which compares the identity of objects
and nm_platform_mptcp_addr_hash*(), which compares all fields.

There is also a need to hash only the address. Add it. Will be used
next.

2 files changed, 25 insertions, 0 deletions

diff --git a/src/libnm-platform/nm-platform.c b/src/libnm-platform/nm-platform.c
index cceabb7f9b..e6cba638b4 100644
--- a/src/libnm-platform/nm-platform.c
+++ b/src/libnm-platform/nm-platform.c
@@ -7806,6 +7806,28 @@ nm_platform_mptcp_addr_cmp(const NMPlatformMptcpAddr *a, const NMPlatformMptcpAd
     return 0;
 }
 
+guint
+nm_platform_mptcp_addr_index_addr_cmp(gconstpointer data)
+{
+    const NMPlatformMptcpAddr *mptcp_addr = data;
+    NMHashState                h;
+
+    nm_hash_init(&h, 1408914077u);
+    nm_hash_update_val(&h, mptcp_addr->addr_family);
+    nm_hash_update(&h, &mptcp_addr->addr, nm_utils_addr_family_to_size(mptcp_addr->addr_family));
+    return nm_hash_complete(&h);
+}
+
+gboolean
+nm_platform_mptcp_addr_index_addr_equal(gconstpointer data_a, gconstpointer data_b)
+{
+    const NMPlatformMptcpAddr *mptcp_addr_a = data_a;
+    const NMPlatformMptcpAddr *mptcp_addr_b = data_b;
+
+    return mptcp_addr_a->addr_family == mptcp_addr_b->addr_family
+           && nm_ip_addr_equal(mptcp_addr_a->addr_family, &mptcp_addr_a->addr, &mptcp_addr_b->addr);
+}
+
 const char *
 nm_platform_vf_to_string(const NMPlatformVF *vf, char *buf, gsize len)
 {
diff --git a/src/libnm-platform/nm-platform.h b/src/libnm-platform/nm-platform.h
index 367f4316d1..a4aebee573 100644
--- a/src/libnm-platform/nm-platform.h
+++ b/src/libnm-platform/nm-platform.h
@@ -2589,6 +2589,9 @@ void nm_platform_tfilter_hash_update(const NMPlatformTfilter *obj, NMHashState *
 
 void nm_platform_mptcp_addr_hash_update(const NMPlatformMptcpAddr *obj, NMHashState *h);
 
+guint    nm_platform_mptcp_addr_index_addr_cmp(gconstpointer data);
+gboolean nm_platform_mptcp_addr_index_addr_equal(gconstpointer data_a, gconstpointer data_b);
+
 #define NM_PLATFORM_LINK_FLAGS2STR_MAX_LEN ((gsize) 162)
 
 const char *nm_platform_link_flags2str(unsigned flags, char *buf, gsize len);