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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 <yishaih@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Matan Barak 2018-03-28 09:27:49 +03:00 committed by Jason Gunthorpe
parent 7d12f8d5a1
commit 56ab0b38b8
4 changed files with 46 additions and 0 deletions
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1
drivers/infiniband/core/uverbs.h
View file

@ -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;
}

16
include/rdma/ib_verbs.h
View file

@ -1828,6 +1828,7 @@ enum ib_flow_spec_type {
/* L3 header*/
IB_FLOW_SPEC_IPV4 = 0x30,
IB_FLOW_SPEC_IPV6 = 0x31,
IB_FLOW_SPEC_ESP = 0x34,
/* L4 headers*/
IB_FLOW_SPEC_TCP = 0x40,
IB_FLOW_SPEC_UDP = 0x41,
@ -1960,6 +1961,20 @@ struct ib_flow_spec_tunnel {
struct ib_flow_tunnel_filter mask;
};
struct ib_flow_esp_filter {
__be32 spi;
__be32 seq;
/* Must be last */
u8 real_sz[0];
};
struct ib_flow_spec_esp {
u32 type;
u16 size;
struct ib_flow_esp_filter val;
struct ib_flow_esp_filter mask;
};
struct ib_flow_spec_action_tag {
enum ib_flow_spec_type type;
u16 size;
@ -1988,6 +2003,7 @@ union ib_flow_spec {
struct ib_flow_spec_tcp_udp tcp_udp;
struct ib_flow_spec_ipv6 ipv6;
struct ib_flow_spec_tunnel tunnel;
struct ib_flow_spec_esp esp;
struct ib_flow_spec_action_tag flow_tag;
struct ib_flow_spec_action_drop drop;
struct ib_flow_spec_action_handle action;

18
include/uapi/rdma/ib_user_verbs.h
View file

@ -1014,6 +1014,24 @@ struct ib_uverbs_flow_spec_tunnel {
struct ib_uverbs_flow_tunnel_filter mask;
};
struct ib_uverbs_flow_spec_esp_filter {
__u32 spi;
__u32 seq;
};
struct ib_uverbs_flow_spec_esp {
union {
struct ib_uverbs_flow_spec_hdr hdr;
struct {
__u32 type;
__u16 size;
__u16 reserved;
};
};
struct ib_uverbs_flow_spec_esp_filter val;
struct ib_uverbs_flow_spec_esp_filter mask;
};
struct ib_uverbs_flow_attr {
__u32 type;
__u16 size;