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Commit 56ab0b38 authored by Matan Barak's avatar Matan Barak Committed by Jason Gunthorpe
Browse files

IB/uverbs: Introduce ESP steering match filter 



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

Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarMatan Barak <matanb@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 7d12f8d5

drivers/infiniband/core/uverbs.h

+1 −0
Original line number Diff line number Diff line
@@ -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;

drivers/infiniband/core/uverbs_cmd.c

+11 −0
Original line number Diff line number Diff line
@@ -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;

	}

include/rdma/ib_verbs.h

+16 −0
Original line number Diff line number Diff line
@@ -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;

include/uapi/rdma/ib_user_verbs.h

+18 −0
Original line number Diff line number Diff line
@@ -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;