• Sébastien Blin's avatar
    pjproject: ignore down interfaces · 9a5b8f3f
    Sébastien Blin authored
    Some interfaces (typically from docker or virtual machines) were added
    in the candidates even if down. For example:
    
    9: br-b8251442502e: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
    state DOWN group default
    
    Even if state=DOWN if_enum_by_af consider the ip as valid and adds it in the
    candidates because IFF_UP is true. However, if_enum_by_af should use IFF_RUNNING
    to detect if the interface is up and running before adding it. Like
     iproute2/bridge/link.c does for print_link_flags.
    
    Resource: https://man7.org/linux/man-pages/man7/netdevice.7.html
    
    Upstream ticket: https://github.com/pjsip/pjproject/issues/2686
    Change-Id: I168954509ec935bb45e39700e57a0c12ac837931
    GitLab: #495
    9a5b8f3f
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