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When packing, can specify l3addr as '1.2.3.4' or 0x01020304

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This commit is contained in:
Brian Candler
2011-04-30 10:21:34 +01:00
parent c1db2b85d1
commit 87758f82c1
1 changed files with 43 additions and 19 deletions
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62
lib/netlink/message.rb
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@@ -46,42 +46,66 @@ module Netlink
:binary => { :pattern => "a*", :default => "".freeze }, :binary => { :pattern => "a*", :default => "".freeze },
:cstring => { :pattern => "Z*", :default => "".freeze }, :cstring => { :pattern => "Z*", :default => "".freeze },
:stats32 => { :stats32 => {
:pack => lambda { |val| val.to_a.pack("L23") }, :pack => lambda { |val,obj| val.to_a.pack("L23") },
:unpack => lambda { |str| LinkStats.new(*(str.unpack("L23"))) }, :unpack => lambda { |str,obj| LinkStats.new(*(str.unpack("L23"))) },
}, },
:stats64 => { :stats64 => {
:pack => lambda { |val| val.to_a.pack("Q23") }, :pack => lambda { |val,obj| val.to_a.pack("Q23") },
:unpack => lambda { |str| LinkStats.new(*(str.unpack("Q23"))) }, :unpack => lambda { |str,obj| LinkStats.new(*(str.unpack("Q23"))) },
}, },
:rta_cacheinfo => { :rta_cacheinfo => {
:pack => lambda { |val| val.to_a.pack("L*") }, :pack => lambda { |val,obj| val.to_a.pack("L*") },
:unpack => lambda { |str| RTACacheInfo.new(*(str.unpack("L*"))) }, :unpack => lambda { |str,obj| RTACacheInfo.new(*(str.unpack("L*"))) },
}, },
:ifa_cacheinfo => { :ifa_cacheinfo => {
:pack => lambda { |val| val.to_a.pack("L*") }, :pack => lambda { |val,obj| val.to_a.pack("L*") },
:unpack => lambda { |str| IFACacheInfo.new(*(str.unpack("L*"))) }, :unpack => lambda { |str,obj| IFACacheInfo.new(*(str.unpack("L*"))) },
}, },
:ifmap => { :ifmap => {
:pack => lambda { |val| val.to_a.pack(IFMAP_PACK) }, :pack => lambda { |val,obj| val.to_a.pack(IFMAP_PACK) },
:unpack => lambda { |str| LinkIFMap.new(*(str.unpack(IFMAP_PACK))) }, :unpack => lambda { |str,obj| LinkIFMap.new(*(str.unpack(IFMAP_PACK))) },
}, },
:metrics => { :metrics => {
:pack => lambda { |pairs| :pack => lambda { |metrics,obj|
pairs.map { |code,val| [METRIC_SIZE,code,val].pack(METRIC_PACK) }.join metrics.map { |code,val| [METRIC_SIZE,code,val].pack(METRIC_PACK) }.join
}, },
:unpack => lambda { |str| :unpack => lambda { |str,obj|
res = {} # in kernel the dst.metrics structure is array of u32 res = {} # in kernel the dst.metrics structure is array of u32
RtattrMessage.unpack_rtattr(str) { |code,val| res[code] = val.unpack("L").first } RtattrMessage.unpack_rtattr(str) { |code,val| res[code] = val.unpack("L").first }
res res
}, },
}, },
:l2addr => { :l2addr => {
:pack => lambda { |val| Array(val).pack("H*") }, :pack => lambda { |val,obj| Array(val).pack("H*") },
:unpack => lambda { |val| val.unpack("H*").first }, :unpack => lambda { |val,obj| val.unpack("H*").first },
}, },
:l3addr => { :l3addr => {
:pack => lambda { |val| val.hton }, :pack => lambda { |val,obj|
:unpack => lambda { |val| IPAddr.new_ntoh(val) }, case obj.family
when Socket::AF_INET, Socket::AF_INET6
ip = case val
when IPAddr
val
when Integer
IPAddr.new(val, obj.family)
else
IPAddr.new(val)
end
raise "Mismatched address family" unless obj.family == ip.family
ip.hton
else
raise "Missing or mismatched address family" if val.is_a?(IPAddr)
val
end
},
:unpack => lambda { |val,obj|
case obj.family
when Socket::AF_INET, Socket::AF_INET6
IPAddr.new_ntoh(val)
else
val
end
},
}, },
} }
@@ -216,7 +240,7 @@ module Netlink
if val = @attrs[name] if val = @attrs[name]
Message.pad(data) Message.pad(data)
if pack = info[:pack] if pack = info[:pack]
val = pack[val] val = pack[val,self]
elsif pattern = info[:pattern] elsif pattern = info[:pattern]
val = Array(val).pack(pattern) val = Array(val).pack(pattern)
end end
@@ -235,7 +259,7 @@ module Netlink
if !info if !info
# skip # skip
elsif unpack = info[:unpack] elsif unpack = info[:unpack]
val = unpack[val] val = unpack[val,res]
elsif pattern = info[:pattern] elsif pattern = info[:pattern]
val = val.unpack(pattern).first val = val.unpack(pattern).first
end end