Merge pull request #25166 from yuwata/network-router-preference

network: adjust route metric based on router preference

diff --cc man/systemd.network.xml
Simple merge

diff --cc src/network/networkd-dhcp-common.c
Simple merge

diff --cc test/test-network/systemd-networkd-tests.py
index 87710ef3fb6651f7084a26939d819b67ea0949f2,64924a35aa582633d6ad325f47d0080392952873..de339894afe7b0764df80af6961f07b069ef2544
--- 1/test/test-network/systemd-networkd-tests.py
--- 2/test/test-network/systemd-networkd-tests.py
+++ b/test/test-network/systemd-networkd-tests.py
@@@ -907,13 -889,23 +907,23 @@@ class Utilities()
  
          self.assertNotRegex(output, address_regex)
  
+     def wait_route(self, link, route_regex, table='main', ipv='', timeout_sec=100):
+         for i in range(timeout_sec):
+             if i > 0:
+                 time.sleep(1)
+             output = check_output(f'ip {ipv} route show dev {link} table {table}')
+             if re.search(route_regex, output):
+                 break
+ 
+         self.assertRegex(output, route_regex)
+ 
      def check_netlabel(self, interface, address, label='system_u:object_r:root_t:s0'):
          if not shutil.which('selinuxenabled'):
 -            print(f'## Checking NetLabel skipped: selinuxenabled command not found.')
 +            print('## Checking NetLabel skipped: selinuxenabled command not found.')
          elif call_quiet('selinuxenabled') != 0:
 -            print(f'## Checking NetLabel skipped: SELinux disabled.')
 +            print('## Checking NetLabel skipped: SELinux disabled.')
          elif not shutil.which('netlabelctl'): # not packaged by all distros
 -            print(f'## Checking NetLabel skipped: netlabelctl command not found.')
 +            print('## Checking NetLabel skipped: netlabelctl command not found.')
          else:
              output = check_output('netlabelctl unlbl list')
              print(output)