ipv4: fix redirect handling
commit f39925db (ipv4: Cache learned redirect information in inetpeer.) introduced a regression in ICMP redirect handling. It assumed ipv4_dst_check() would be called because all possible routes were attached to the inetpeer we modify in ip_rt_redirect(), but thats not true. commit 7cc9150e (route: fix ICMP redirect validation) tried to fix this but solution was not complete. (It fixed only one route) So we must lookup existing routes (including different TOS values) and call check_peer_redir() on them. Reported-by: NIvan Zahariev <famzah@icdsoft.com> Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> CC: Flavio Leitner <fbl@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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