Teng Qin ea7c24c785 bpf: map_get_next_key to return first key on NULL ... commit 8fe45924387be6b5c1be59a7eb330790c61d5d10 upstream. When iterating through a map, we need to find a key that does not exist in the map so map_get_next_key will give us the first key of the map. This often requires a lot of guessing in production systems. This patch makes map_get_next_key return the first key when the key pointer in the parameter is NULL. Signed-off-by: Teng Qin <qinteng@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chenbo Feng <fengc@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-05-16 10:06:46 +02:00
..
arraymap.c	bpf: map_get_next_key to return first key on NULL	2018-05-16 10:06:46 +02:00
core.c	bpf: fix divides by zero	2018-02-03 17:04:24 +01:00
hashtab.c	bpf: map_get_next_key to return first key on NULL	2018-05-16 10:06:46 +02:00
helpers.c	bpf: avoid copying junk bytes in bpf_get_current_comm()	2016-04-20 15:42:01 +09:00
inode.c	bpf, inode: disallow userns mounts	2016-06-24 10:18:17 -07:00
Makefile	bpf: add support for persistent maps/progs	2015-11-02 22:48:39 -05:00
syscall.c	bpf: map_get_next_key to return first key on NULL	2018-05-16 10:06:46 +02:00
verifier.c	bpf: fix incorrect sign extension in check_alu_op()	2018-03-22 09:23:32 +01:00