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authorThomas Graf <tgraf@suug.ch>2007-03-24 12:46:02 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-03-25 18:48:00 -0700
commite1701c68c1d1aeb3213d7016593ea9a1d4309417 (patch)
tree96dc2e47b36589636b15602dcdcfd2ea426260b7 /net/atm
parent5f85813c33ddbf6d11ccfdbcc01f176e24a76bd2 (diff)
[NET]: Fix fib_rules compatibility breakage
Based upon a patch from Patrick McHardy. The fib_rules netlink attribute policy introduced in 2.6.19 broke userspace compatibilty. When specifying a rule with "from all" or "to all", iproute adds a zero byte long netlink attribute, but the policy requires all addresses to have a size equal to sizeof(struct in_addr)/sizeof(struct in6_addr), resulting in a validation error. Check attribute length of FRA_SRC/FRA_DST in the generic framework by letting the family specific rules implementation provide the length of an address. Report an error if address length is non zero but no address attribute is provided. Fix actual bug by checking address length for non-zero instead of relying on availability of attribute. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm')
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