OS : Linux
PHP Version : 7.4.33
Software : Apache/2.4.6 (CentOS) PHP/7.4.33
Information System : ó
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namedtupleNi i i i i i i iÿÿ i i< t IHHIIt BHiIIi i i i t RTAAttrt lengtht rta_typet datat InterfaceOperstatet ifnamet operstatet
NetlinkHeadert typet flagst seqt pidt NetlinkCreateSocketErrorc B s e Z d Z RS( s5 Raised if netlink socket fails during create or bind.( t __name__t
__module__t __doc__( ( ( sE /usr/lib/python2.7/site-packages/cloudinit/sources/helpers/netlink.pyR 8 s c C sˆ yH t j t j t j t j ƒ } | j t j ƒ t f ƒ | j d ƒ Wn, t j k
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| ƒ ‚ n Xt j d ƒ | S( su Creates netlink socket and bind on netlink group to catch interface
down/up events. The socket will bound only on RTMGRP_LINK (which only
includes RTM_NEWLINK/RTM_DELLINK/RTM_GETLINK events). The socket is set to
non-blocking mode since we're only receiving messages.
:returns: netlink socket in non-blocking mode
:raises: NetlinkCreateSocketError
i s* Exception during netlink socket create: %ss Created netlink socket(
t sockett
AF_NETLINKt SOCK_RAWt
NETLINK_ROUTEt bindt ost getpidt RTMGRP_LINKt setblockingt errorR t LOGt debug( t netlink_sockett et msg( ( sE /usr/lib/python2.7/site-packages/cloudinit/sources/helpers/netlink.pyt create_bound_netlink_socket= s
c C sK t j t | t ƒ \ } } } } } t j d | ƒ t | | | | | ƒ S( s Gets netlink message type and length
:param: data read from netlink socket
:returns: netlink message type
:raises: AssertionError if data is None or data is not >= NLMSGHDR_SIZE
struct nlmsghdr {
__u32 nlmsg_len; /* Length of message including header */
__u16 nlmsg_type; /* Type of message content */
__u16 nlmsg_flags; /* Additional flags */
__u32 nlmsg_seq; /* Sequence number */
__u32 nlmsg_pid; /* Sender port ID */
};
s Got netlink msg of type %d( t structt unpackt NLMSGHDR_FMTt MSG_TYPE_OFFSETR R R ( R t msg_lent msg_typeR R R ( ( sE /usr/lib/python2.7/site-packages/cloudinit/sources/helpers/netlink.pyt get_netlink_msg_headerS s c C sp t j | g g g | ƒ \ } } } | | k r4 d St j d ƒ | j t ƒ } | d k rl t j d ƒ n | S( sÁ Select and read from the netlink socket if ready.
:param: netlink_socket: specify which socket object to read from
:param: timeout: specify a timeout value (integer) to wait while reading,
if none, it will block indefinitely until socket ready for read
:returns: string of data read (max length =