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IB/uverbs: Introduce ESP steering match filter

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Adding a new ESP steering match filter that could match against
spi and seq used in IPSec protocol.

Reviewed-by: Yishai Hadas <[email protected]>
Signed-off-by: Matan Barak <[email protected]>
Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
This commit is contained in:
Matan Barak 2018-03-28 09:27:49 +03:00 • committed by Jason Gunthorpe
commit 56ab0b38b8
4 changed files with 46 additions and 0 deletions
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1
drivers/infiniband/core/uverbs.h
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@ -257,6 +257,7 @@ struct ib_uverbs_flow_spec {
};
struct ib_uverbs_flow_spec_eth eth;
struct ib_uverbs_flow_spec_ipv4 ipv4;
struct ib_uverbs_flow_spec_esp esp;
struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
struct ib_uverbs_flow_spec_ipv6 ipv6;
struct ib_uverbs_flow_spec_action_tag flow_tag;

11
drivers/infiniband/core/uverbs_cmd.c
View file

@ -2931,6 +2931,17 @@ int ib_uverbs_kern_spec_to_ib_spec_filter(enum ib_flow_spec_type type,
(ntohl(ib_spec->tunnel.val.tunnel_id)) >= BIT(24))
return -EINVAL;
break;
case IB_FLOW_SPEC_ESP:
ib_filter_sz = offsetof(struct ib_flow_esp_filter, real_sz);
actual_filter_sz = spec_filter_size(kern_spec_mask,
kern_filter_sz,
ib_filter_sz);
if (actual_filter_sz <= 0)
return -EINVAL;
ib_spec->esp.size = sizeof(struct ib_flow_spec_esp);
memcpy(&ib_spec->esp.val, kern_spec_val, actual_filter_sz);
memcpy(&ib_spec->esp.mask, kern_spec_mask, actual_filter_sz);
break;
default:
return -EINVAL;
}