ynl/lib/ynl.py

17 # Generic Netlink code which should really be in some library, but I can't quickly find one.
21 class Netlink:  class
22     # Netlink socket
30     # Netlink message
84     return f"Netlink error: {os.strerror(-self.nl_msg.error)}\n{self.nl_msg}"
102         self.type = self._type & ~Netlink.NLA_TYPE_MASK
199         if self.nl_type == Netlink.NLMSG_ERROR:
203         elif self.nl_type == Netlink.NLMSG_DONE:
209         if self.nl_flags & Netlink.NLM_F_ACK_TLVS and extack_off:
213                 if extack.type == Netlink.NLMSGERR_ATTR_MSG:
215                 elif extack.type == Netlink.NLMSGERR_ATTR_MISS_TYPE:
217                 elif extack.type == Netlink.NLMSGERR_ATTR_MISS_NEST:
219                 elif extack.type == Netlink.NLMSGERR_ATTR_OFFS:
280     with socket.socket(socket.AF_NETLINK, socket.SOCK_RAW, Netlink.NETLINK_GENERIC) as sock:
281         sock.setsockopt(Netlink.SOL_NETLINK, Netlink.NETLINK_CAP_ACK, 1)
283         msg = _genl_msg(Netlink.GENL_ID_CTRL,
284                         Netlink.NLM_F_REQUEST | Netlink.NLM_F_ACK | Netlink.NLM_F_DUMP,
285                         Netlink.CTRL_CMD_GETFAMILY, 1)
298                     print("Netlink error:", nl_msg.error)
306                     if attr.type == Netlink.CTRL_ATTR_FAMILY_ID:
308                     elif attr.type == Netlink.CTRL_ATTR_FAMILY_NAME:
310                     elif attr.type == Netlink.CTRL_ATTR_MAXATTR:
312                     elif attr.type == Netlink.CTRL_ATTR_MCAST_GROUPS:
318                                 if entry_attr.type == Netlink.CTRL_ATTR_MCAST_GRP_NAME:
320                                 elif entry_attr.type == Netlink.CTRL_ATTR_MCAST_GRP_ID:
379         super().__init__(family_name, Netlink.NETLINK_GENERIC)
414             if self.proto == "netlink-raw":
423         self.sock.setsockopt(Netlink.SOL_NETLINK, Netlink.NETLINK_CAP_ACK, 1)
424         self.sock.setsockopt(Netlink.SOL_NETLINK, Netlink.NETLINK_EXT_ACK, 1)
425         self.sock.setsockopt(Netlink.SOL_NETLINK, Netlink.NETLINK_GET_STRICT_CHK, 1)
442         self.sock.setsockopt(Netlink.SOL_NETLINK, Netlink.NETLINK_ADD_MEMBERSHIP,
452             nl_type |= Netlink.NLA_F_NESTED
637                     print("Netlink error in ntf!?", os.strerror(-nl_msg.error))
641                     print("Netlink done while checking for ntf!?")
665         nl_flags = Netlink.NLM_F_REQUEST | Netlink.NLM_F_ACK
669             nl_flags |= Netlink.NLM_F_DUMP
699                         print("Netlink warning:")