Yonghong Song 138d0be35b
net: bpf: Add netlink and ipv6_route bpf_iter targets ...
This patch added netlink and ipv6_route targets, using
the same seq_ops (except show() and minor changes for stop())
for /proc/net/{netlink,ipv6_route}.
The net namespace for these targets are the current net
namespace at file open stage, similar to
/proc/net/{netlink,ipv6_route} reference counting
the net namespace at seq_file open stage.
Since module is not supported for now, ipv6_route is
supported only if the IPV6 is built-in, i.e., not compiled
as a module. The restriction can be lifted once module
is properly supported for bpf_iter.
Signed-off-by: Yonghong Song <yhs@fb.com >
Signed-off-by: Alexei Starovoitov <ast@kernel.org >
Acked-by: Andrii Nakryiko <andriin@fb.com >
Link: https://lore.kernel.org/bpf/20200509175910.2476329-1-yhs@fb.com
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138d0be35b