961b04
From c7b21c88d27aace097ce9bc1fc36f4b742858737 Mon Sep 17 00:00:00 2001
961b04
From: Pavel Valena <pvalena@redhat.com>
961b04
Date: Mon, 22 Nov 2021 16:40:39 +0100
961b04
Subject: [PATCH] fix(network): add errors and warnings when network interface
961b04
 does not exist
961b04
961b04
End with error, or show a warning when nonexistent device is specified for network setup like
961b04
`ip=10.12.8.12::10.12.255.254:255.255.0.0:xk12:eth0:off`.
961b04
961b04
I've added the error only for `write-ifcfg.sh`, as I think no such setup should be written.
961b04
961b04
Resolves: #1712424
961b04
---
961b04
 modules.d/35network-legacy/ifup.sh          | 6 +++++-
961b04
 modules.d/35network-legacy/parse-ip-opts.sh | 5 +++++
961b04
 modules.d/45ifcfg/write-ifcfg.sh            | 5 +++++
961b04
 3 files changed, 15 insertions(+), 1 deletion(-)
961b04
961b04
diff --git a/modules.d/35network-legacy/ifup.sh b/modules.d/35network-legacy/ifup.sh
961b04
index bd560379..0e9a6928 100755
961b04
--- a/modules.d/35network-legacy/ifup.sh
961b04
+++ b/modules.d/35network-legacy/ifup.sh
961b04
@@ -413,7 +413,11 @@ for p in $(getargs ip=); do
961b04
 
961b04
     # If this option isn't directed at our interface, skip it
961b04
     if [ -n "$dev" ]; then
961b04
-        [ "$dev" != "$netif" ] && continue
961b04
+        if [ "$dev" != "$netif" ]; then
961b04
+            [ ! -e "/sys/class/net/$dev" ] \
961b04
+                && warn "Network interface '$dev' does not exist!"
961b04
+            continue
961b04
+        fi
961b04
     else
961b04
         iface_is_enslaved "$netif" && continue
961b04
     fi
961b04
diff --git a/modules.d/35network-legacy/parse-ip-opts.sh b/modules.d/35network-legacy/parse-ip-opts.sh
961b04
index 10a2d19b..eea0988c 100755
961b04
--- a/modules.d/35network-legacy/parse-ip-opts.sh
961b04
+++ b/modules.d/35network-legacy/parse-ip-opts.sh
961b04
@@ -96,6 +96,11 @@ for p in $(getargs ip=); do
961b04
         fi
961b04
         # IFACES list for later use
961b04
         IFACES="$IFACES $dev"
961b04
+
961b04
+        # Interface should exist
961b04
+        if [ ! -e "/sys/class/net/$dev" ]; then
961b04
+            warn "Network interface '$dev' does not exist"
961b04
+        fi
961b04
     fi
961b04
 
961b04
     # Do we need to check for specific options?
961b04
diff --git a/modules.d/45ifcfg/write-ifcfg.sh b/modules.d/45ifcfg/write-ifcfg.sh
961b04
index abd111fc..7e767f15 100755
961b04
--- a/modules.d/45ifcfg/write-ifcfg.sh
961b04
+++ b/modules.d/45ifcfg/write-ifcfg.sh
961b04
@@ -100,6 +100,11 @@ interface_bind() {
961b04
     local _netif="$1"
961b04
     local _macaddr="$2"
961b04
 
961b04
+    if [ ! -e "/sys/class/net/$_netif" ]; then
961b04
+        derror "Cannot find network interface '$_netif'!"
961b04
+        return 1
961b04
+    fi
961b04
+
961b04
     # see, if we can bind it to some hw parms
961b04
     if hw_bind "$_netif" "$_macaddr"; then
961b04
         # only print out DEVICE, if it's user assigned
961b04