1IO::Socket::Netlink::RoUusteer(3C)ontributed Perl DocumeInOt:a:tSioocnket::Netlink::Route(3)
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NAME

6       "IO::Socket::Netlink::Route" - Object interface to "NETLINK_ROUTE"
7       netlink protocol sockets
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DESCRIPTION

10       This subclass of IO::Socket::Netlink implements the "NETLINK_ROUTE"
11       protocol. This protocol allows communication with the Linux kernel's
12       networking stack, allowing querying or modification of interfaces,
13       addresses, routes, and other networking properties.
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15       This module is currently a work-in-progress, and this documentation is
16       fairly minimal. The reader is expected to be familiar with
17       "NETLINK_ROUTE", as it currently only gives a fairly minimal
18       description of the Perl-level wrapping of the kernel level concepts.
19       For more information see the documentation in rtnetlink(7).
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MESSAGE CLASSES

22       Each message type falls into one of the following subclasses, chosen by
23       the value of the "nlmsg_type" field. Each subclass provides access to
24       the field headers of its message body, and netlink attributes.
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26   IfinfoMsg
27       Relates to a network interface. Used by the following message types
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29       ·   RTM_NEWLINK
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31       ·   RTM_DELLINK
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33       ·   RTM_GETLINK
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35       Provides the following header field accessors
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37       ·   ifi_family
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39       ·   ifi_type
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41       ·   ifi_index
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43       ·   ifi_flags
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45       ·   ifi_change
46
47       Provides the following netlink attributes
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49       ·   address => STRING
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51       ·   broadcast => STRING
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53       ·   ifname => STRING
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55       ·   mtu => INT
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57       ·   qdisc => STRING
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59       ·   stats => HASH
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61       ·   txqlen => INT
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63       ·   operstate => INT
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65       ·   linkmode => INT
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67   IfaddrMsg
68       Relates to an address present on an interface. Used by the following
69       message types
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71       ·   RTM_NEWADDR
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73       ·   RTM_DELADDR
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75       ·   RTM_GETADDR
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77       Provides the following header field accessors
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79       ·   ifa_family
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81       ·   ifa_prefixlen
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83       ·   ifa_flags
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85       ·   ifa_scope
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87       ·   ifa_index
88
89       Provides the following netlink attributes
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91       ·   address => STRING
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93       ·   local => STRING
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95       ·   label => STRING
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97       ·   broadcast => STRING
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99       ·   anycast => STRING
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101       ·   cacheinfo => HASH
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103       $message->prefix
104
105       Sets or returns both the "address" netlink attribute, and the
106       "ifa_prefixlen" header value, in the form
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108        address/ifa_prefixlen
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110   RtMsg
111       Relates to a routing table entry. Used by the following message types
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113       ·   RTM_NEWROUTE
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115       ·   RTM_DELROUTE
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117       ·   RTM_GETROUTE
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119       Provides the following header field accessors
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121       ·   rtm_family
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123       ·   rtm_dst_len
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125       ·   rtm_src_len
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127       ·   rtm_tos
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129       ·   rtm_table
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131       ·   rtm_protocol
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133       ·   rtm_scope
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135       ·   rtm_type
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137       ·   rtm_flags
138
139       Provides the following netlink attributes
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141       ·   dst => STRING
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143       ·   src => STRING
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145       ·   iif => INT
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147       ·   oif => INT
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149       ·   gateway => STRING
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151       ·   priority => INT
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153       ·   metrics => INT
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155       $message->src
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157       Sets or returns the "src" netlink attribute and the "rtm_src_len"
158       header value, in the form
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160        address/prefixlen
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162       if the address is defined, or "undef" if not.
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164       $message->dst
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166       Sets or returns the "dst" netlink attribute and the "rtm_dst_len"
167       header value, in the form given above.
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169   NdMsg
170       Relates to a neighbour discovery table entry. Used by the following
171       message types
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173       ·   RTM_NEWNEIGH
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175       ·   RTM_DELNEIGH
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177       ·   RTM_GETNEIGH
178
179       Provides the following header field accessors
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181       ·   ndm_family
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183       ·   ndm_ifindex
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185       ·   ndm_state
186
187       ·   ndm_flags
188
189       ·   ndm_type
190
191       Provides the following netlink attributes
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193       ·   dst => STRING
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195       ·   lladdr => STRING
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197       ·   cacheinfo => HASH
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SEE ALSO

200       ·   Socket::Netlink::Route - interface to Linux's "NETLINK_ROUTE"
201           netlink socket protocol
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203       ·   IO::Socket::Netlink - Object interface to "AF_NETLINK" domain
204           sockets
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206       ·   rtnetlink(7) - rtnetlink, NETLINK_ROUTE - Linux IPv4 routing socket
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AUTHOR

209       Paul Evans <leonerd@leonerd.org.uk>
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213perl v5.30.1                      2020-01-30     IO::Socket::Netlink::Route(3)