net: ipv4: add skb drop reasons to ip_error()

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Eventually, I find out the handler function for inputting route lookup
fail: ip_error().

The drop reasons we used in ip_error() are almost corresponding to
IPSTATS_MIB_*, and following new reasons are introduced:

SKB_DROP_REASON_IP_INADDRERRORS
SKB_DROP_REASON_IP_INNOROUTES

Isn't the name SKB_DROP_REASON_IP_HOSTUNREACH and
SKB_DROP_REASON_IP_NETUNREACH more accurate? To make them corresponding
to IPSTATS_MIB_*, we keep their name still.

Signed-off-by: Menglong Dong <imagedong@tencent.com>
Reviewed-by: Jiang Biao <benbjiang@tencent.com>
Reviewed-by: Hao Peng <flyingpeng@tencent.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Menglong Dong 2022-04-13 16:15:53 +08:00 • committed by David S. Miller

parent d6d3146ce5

commit c4eb664191

3 changed files with 13 additions and 1 deletions

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6

include/linux/skbuff.h

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2

include/trace/events/skb.h

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6

net/ipv4/route.c

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