From 5cbaf95ee3110d0a5b28eeb7a89a75a165b12e7b Mon Sep 17 00:00:00 2001
From: Daan De Meyer <daan.de_meyer@otnsystems.com>
Date: Tue, 14 Jan 2020 14:08:03 +0100
Subject: [PATCH] wait-online: Support waiting for interfaces to disappear

---
 man/networkctl.xml                       | 6 ++++++
 src/libsystemd/sd-network/network-util.c | 3 ++-
 src/libsystemd/sd-network/network-util.h | 1 +
 src/network/wait-online/manager.c        | 5 +++++
 4 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/man/networkctl.xml b/man/networkctl.xml
index 6b3702bfd3c..b0c8b002c05 100644
--- a/man/networkctl.xml
+++ b/man/networkctl.xml
@@ -69,6 +69,12 @@
 
         <para>The operational status is one of the following:
             <variablelist>
+              <varlistentry>
+                <term>missing</term>
+                <listitem>
+                    <para>the device is missing</para>
+                </listitem>
+              </varlistentry>
               <varlistentry>
                 <term>off</term>
                 <listitem>
diff --git a/src/libsystemd/sd-network/network-util.c b/src/libsystemd/sd-network/network-util.c
index 4eb06b91ac9..0addabe10a2 100644
--- a/src/libsystemd/sd-network/network-util.c
+++ b/src/libsystemd/sd-network/network-util.c
@@ -26,6 +26,7 @@ bool network_is_online(void) {
 }
 
 static const char* const link_operstate_table[_LINK_OPERSTATE_MAX] = {
+        [LINK_OPERSTATE_MISSING]          = "missing",
         [LINK_OPERSTATE_OFF]              = "off",
         [LINK_OPERSTATE_NO_CARRIER]       = "no-carrier",
         [LINK_OPERSTATE_DORMANT]          = "dormant",
@@ -91,7 +92,7 @@ int parse_operational_state_range(const char *str, LinkOperationalStateRange *ou
                 return -EINVAL;
 
         if (range.min == _LINK_OPERSTATE_INVALID)
-                range.min = LINK_OPERSTATE_OFF;
+                range.min = LINK_OPERSTATE_MISSING;
         if (range.max == _LINK_OPERSTATE_INVALID)
                 range.max = LINK_OPERSTATE_ROUTABLE;
 
diff --git a/src/libsystemd/sd-network/network-util.h b/src/libsystemd/sd-network/network-util.h
index 1087a1c6644..425d192f640 100644
--- a/src/libsystemd/sd-network/network-util.h
+++ b/src/libsystemd/sd-network/network-util.h
@@ -8,6 +8,7 @@
 bool network_is_online(void);
 
 typedef enum LinkOperationalState {
+        LINK_OPERSTATE_MISSING,
         LINK_OPERSTATE_OFF,
         LINK_OPERSTATE_NO_CARRIER,
         LINK_OPERSTATE_DORMANT,
diff --git a/src/network/wait-online/manager.c b/src/network/wait-online/manager.c
index e4643418a74..4734ce28ee5 100644
--- a/src/network/wait-online/manager.c
+++ b/src/network/wait-online/manager.c
@@ -78,6 +78,11 @@ bool manager_configured(Manager *m) {
                         LinkOperationalStateRange *range = p;
 
                         l = hashmap_get(m->links_by_name, ifname);
+                        if (!l && range->min == LINK_OPERSTATE_MISSING) {
+                                one_ready = true;
+                                continue;
+                        }
+
                         if (!l) {
                                 log_debug("still waiting for %s", ifname);
                                 if (!m->any)