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Currently rtnl_link_info_data_compare doesn't pass
flags (LOOSE_COMPARISON) to the ->io_compare op, so we cannot do a match
on only the attributes that are actually set in the filter object used
in a cache lookup via nl_cache_find().
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Thomas Haller <thaller@redhat.com>
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Instead of setting it twice, once during link_request_update() and
later in bridge_get_af(), pass ext_filter_mask to ao_get_af().
Signed-off-by: Thomas Haller <thaller@redhat.com>
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lib/route/link.c already defines 32 attributes which fills the current
uint32_t used for ce_mask. To accommodate more attributes the mask needs
to be expanded. This patch updates the definition to uint64_t.
The nl_object_diff API is maintained for ABI with existing users. A new
nl_object_diff64 API is added for the expanded attribute list. The MSB
of the 32-bit API is used to indicate if higher order attributes had a
mismatch. (Suggested by Thomas).
Note that LINK_ATTR_LINK_NETNSID changes. But since the attribute flags
are not public API it shouldn't be a problem.
http://lists.infradead.org/pipermail/libnl/2015-December/002078.html
http://lists.infradead.org/pipermail/libnl/2015-December/002083.html
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Thomas Haller <thaller@redhat.com>
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The encoding of the IFLA_AF_SPEC attribute varies depending on the family
used for the request (RTM_GETLINK) message. For AF_UNSPEC the encoding
has another level of nesting for each address family with the type encoded
first. i.e.,
af_spec = nla_nest_start(skb, IFLA_AF_SPEC)
for each family:
af = nla_nest_start(skb, af_ops->family)
af_ops->fill_link_af(skb, dev, ext_filter_mask)
nest_end
nest_end
This allows the parser to find the address family by looking at the first
type.
Whereas AF_BRIDGE encoding is just:
af_spec = nla_nest_start(skb, IFLA_AF_SPEC)
br_fill_ifvlaninfo{_compressed}(skb, vg)
nest_end
which means the parser can not use the attribute itself to know the family
to which the attribute belongs.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
[thaller@redhat.com: refactor code by merging a later patch by
tobias.jungel@bisdn.de and introduce new function ao_parse_af_full()]
Signed-off-by: Thomas Haller <thaller@redhat.com>
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Upcoming bridge patch wants to add IFLA_EXT_MASK attribute to RTM_GETLINK
requests to retrieve VLAN data. Expand request message to a full ifinfomsg
header and call to hook to append attributes if it exists for an address
family.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
[thaller@redhat.com: fix memleak in link_request_update()]
Signed-off-by: Thomas Haller <thaller@redhat.com>
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Signed-off-by: Balki Raman <ramanb@cumulusnetworks.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: Thomas Haller <thaller@redhat.com>
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Signed-off-by: Thomas Haller <thaller@redhat.com>
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Cc: Thomas Graf <tgraf@suug.ch>
Cc: Thomas Haller <thaller@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Thomas Haller <thaller@redhat.com>
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This clarifies the seperation between public and private
header files.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
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