From 9c402e3ae2607084ba17fcab5d76c9f1e085b59e Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Sat, 2 Nov 2024 06:31:25 +0900
Subject: [PATCH] network: check if interface is initialized after enumeration
 completed

We enumerate interfaces at first, then enumerate other configurations
like addresses and so on. If we are running on a container, previously
we started to configure the enumerated interfaces before enumerating other
configurations.
Let's configure interfaces after all configurations are enumerated.
---
 src/network/networkd-link.c    | 10 +++++++++-
 src/network/networkd-link.h    |  2 ++
 src/network/networkd-manager.c | 11 +++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index bc4374b42c..ea68b14a8c 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -1636,7 +1636,7 @@ static int link_initialized(Link *link, sd_device *device) {
         return link_call_getlink(link, link_initialized_handler);
 }
 
-static int link_check_initialized(Link *link) {
+int link_check_initialized(Link *link) {
         _cleanup_(sd_device_unrefp) sd_device *device = NULL;
         int r;
 
@@ -2836,6 +2836,10 @@ int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, Man
                                 return 0;
                         }
 
+                        /* Do not enter initialized state if we are enumerating. */
+                        if (manager->enumerating)
+                                return 0;
+
                         r = link_check_initialized(link);
                         if (r < 0) {
                                 log_link_warning_errno(link, r, "Failed to check link is initialized: %m");
@@ -2858,6 +2862,10 @@ int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, Man
                                 return 0;
                         }
 
+                        /* Do not configure interface if we are enumerating. */
+                        if (manager->enumerating)
+                                return 0;
+
                         r = link_reconfigure_impl(link, /* force = */ false);
                         if (r < 0) {
                                 log_link_warning_errno(link, r, "Failed to reconfigure interface: %m");
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h
index 5efe226084..1c5c9ec709 100644
--- a/src/network/networkd-link.h
+++ b/src/network/networkd-link.h
@@ -263,6 +263,8 @@ int link_reconfigure_impl(Link *link, bool force);
 int link_reconfigure(Link *link, bool force);
 int link_reconfigure_on_bus_method_reload(Link *link, sd_bus_message *message);
 
+int link_check_initialized(Link *link);
+
 int manager_udev_process_link(Manager *m, sd_device *device, sd_device_action_t action);
 int manager_rtnl_process_link(sd_netlink *rtnl, sd_netlink_message *message, Manager *m);
 
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 6dce901742..73e9156e22 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -756,6 +756,17 @@ int manager_start(Manager *m) {
         if (r < 0)
                 return log_error_errno(r, "Failed to initialize speed meter: %m");
 
+        HASHMAP_FOREACH(link, m->links_by_index) {
+                if (link->state != LINK_STATE_PENDING)
+                        continue;
+
+                r = link_check_initialized(link);
+                if (r < 0) {
+                        log_link_warning_errno(link, r, "Failed to check if link is initialized: %m");
+                        link_enter_failed(link);
+                }
+        }
+
         /* The dirty handler will deal with future serialization, but the first one
            must be done explicitly. */
 
-- 
2.25.1