On 02/08/17 17:28, Pablo Neira Ayuso wrote:
On Wed, Feb 08, 2017 at 05:00:18PM +0000, Robert White wrote:
(please forgive stupid email word wrap)
# nft table ip nat
# nft map nat dnat_example { type inet_service: ipv4_addr\; flags interval
\; }
# nft element nat dnat_example { 3476-3480 : 192.168.14.12 }
# nft list ruleset
table ip nat {
map dnat_example {
type inet_service : ipv4_addr
flags interval
nft: mini-gmp.c:4311: mpz_export: Assertion `size > 0 || u->_mp_size == 0'
failed.
elements = { 3476-Aborted
So the entry seems to have gotten in alright but it can't come back out
normally. I can tell because a "export json" works
# nft export json
{"nftables":[{"table":{"name":"nat","family":"ip","flags":0,"use":1}},{"set":{"name":"dnat_example","table":"nat","flags":12,"family":"ip","key_type":13,"key_len":2,"data_type":7,"data_len":4,"set_elem":[{"flags":1,"key":{"reg":{"type":"value","len":2,"data0":"0x0000990d"}}},{"key":{"reg":{"type":"value","len":2,"data0":"0x0000940d"}},"data":{"reg":{"type":"value","len":4,"data0":"0x0c0ea8c0"}}},{"flags":1,"key":{"reg":{"type":"value","len":2,"data0":"0x00000000"}}}]}}]}
NOTE: interval sets work fine:
# nft list ruleset
table ip nat {
set portrange {
type inet_service
flags interval
elements = { 3776-3780}
}
}
What nft version are you using? This works fine with nft git
snapshots. Please, give it a try and confirm.
Thanks.
Missed something.
With 0.7 and without --with-mini-gmp there's a "floating point
exception" instead of the assert, so there was still some shenanigans
happening behind the scenes.
Probably good to push a new release soon. 8-)
--Rob.
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