ipv6: Handle IPv4-mapped src to in6addr_any dst.

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This patch adds a check on the type of the source address for the case
where the destination address is in6addr_any. If the source is an
IPv4-mapped IPv6 source address, the destination is changed to
::ffff:127.0.0.1, and otherwise the destination is changed to ::1. This
is done in three locations to handle UDP calls to either connect() or
sendmsg() and TCP calls to connect(). Note that udpv6_sendmsg() delays
handling an in6addr_any destination until very late, so the patch only
needs to handle the case where the source is an IPv4-mapped IPv6
address.

Signed-off-by: Jonathan T. Leighton <jtleight@udel.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jonathan T. Leighton 2017-02-12 17:26:07 -05:00 • committed by David S. Miller

parent ec5e3b0a1d

commit 052d2369d1

3 changed files with 21 additions and 8 deletions

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14

net/ipv6/datagram.c

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11

net/ipv6/tcp_ipv6.c

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4

net/ipv6/udp.c

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