From 77b05fa9a7120f2acb94221ae42bc8bb681df347 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Sun, 18 Oct 2015 17:19:29 +0200
Subject: sd-ndisc: don't inform the caller of expired prefixes

The caller should push any lifetime information into the kernel and let the kernel handle
prefix expiration.
---
 src/libsystemd-network/sd-ndisc.c | 20 --------------------
 src/network/networkd-ndisc.c      |  1 -
 src/systemd/sd-ndisc.h            |  3 ---
 3 files changed, 24 deletions(-)

diff --git a/src/libsystemd-network/sd-ndisc.c b/src/libsystemd-network/sd-ndisc.c
index 7921eb71a2..ceabd654ef 100644
--- a/src/libsystemd-network/sd-ndisc.c
+++ b/src/libsystemd-network/sd-ndisc.c
@@ -67,7 +67,6 @@ struct sd_ndisc {
         int index;
         struct ether_addr mac_addr;
         uint32_t mtu;
-        NDiscPrefix *expired_prefix;
         LIST_HEAD(NDiscPrefix, prefixes);
         int fd;
         sd_event_source *recv;
@@ -283,11 +282,6 @@ static int ndisc_prefix_timeout(sd_event_source *s, uint64_t usec,
 
                 LIST_REMOVE(prefixes, nd->prefixes, prefix);
 
-                nd->expired_prefix = prefix;
-                ndisc_notify(nd,
-                                SD_NDISC_EVENT_ROUTER_ADVERTISMENT_PREFIX_EXPIRED);
-                nd->expired_prefix = NULL;
-
                 prefix = ndisc_prefix_unref(prefix);
 
                 break;
@@ -390,20 +384,6 @@ int sd_ndisc_get_prefixlen(sd_ndisc *nd, const struct in6_addr *addr,
         return 0;
 }
 
-int sd_ndisc_get_expired_prefix(sd_ndisc *nd, struct in6_addr **addr, uint8_t *prefixlen) {
-        assert_return(nd, -EINVAL);
-        assert_return(addr, -EINVAL);
-        assert_return(prefixlen, -EINVAL);
-
-        if (!nd->expired_prefix)
-                return -EADDRNOTAVAIL;
-
-        *addr = &nd->expired_prefix->addr;
-        *prefixlen = nd->expired_prefix->len;
-
-        return 0;
-}
-
 static int ndisc_prefix_update(sd_ndisc *nd, ssize_t len,
                                   const struct nd_opt_prefix_info *prefix_opt) {
         int r;
diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
index ab4bb51280..637c29973e 100644
--- a/src/network/networkd-ndisc.c
+++ b/src/network/networkd-ndisc.c
@@ -38,7 +38,6 @@ static void ndisc_router_handler(sd_ndisc *nd, int event, void *userdata) {
 
         switch(event) {
         case SD_NDISC_EVENT_ROUTER_ADVERTISMENT_NONE:
-        case SD_NDISC_EVENT_ROUTER_ADVERTISMENT_PREFIX_EXPIRED:
                 return;
 
         case SD_NDISC_EVENT_ROUTER_ADVERTISMENT_OTHER:
diff --git a/src/systemd/sd-ndisc.h b/src/systemd/sd-ndisc.h
index 8cee7343b5..963e161e6a 100644
--- a/src/systemd/sd-ndisc.h
+++ b/src/systemd/sd-ndisc.h
@@ -31,7 +31,6 @@ enum {
         SD_NDISC_EVENT_ROUTER_ADVERTISMENT_TIMEOUT           = 1,
         SD_NDISC_EVENT_ROUTER_ADVERTISMENT_OTHER             = 2,
         SD_NDISC_EVENT_ROUTER_ADVERTISMENT_MANAGED           = 3,
-        SD_NDISC_EVENT_ROUTER_ADVERTISMENT_PREFIX_EXPIRED    = 4,
 };
 
 typedef struct sd_ndisc sd_ndisc;
@@ -58,8 +57,6 @@ int sd_ndisc_prefix_match(struct in6_addr *prefix, uint8_t prefixlen,
 int sd_ndisc_get_mtu(sd_ndisc *nd, uint32_t *mtu);
 int sd_ndisc_get_prefixlen(sd_ndisc *nd, const struct in6_addr *addr,
                         uint8_t *prefixlen);
-int sd_ndisc_get_expired_prefix(sd_ndisc *nd, struct in6_addr **addr,
-                                uint8_t *prefixlen);
 
 int sd_ndisc_stop(sd_ndisc *nd);
 int sd_ndisc_router_discovery_start(sd_ndisc *nd);
-- 
cgit v1.2.3-54-g00ecf