diff options
author | Steffen Klassert <steffen.klassert@secunet.com> | 2017-12-20 12:41:36 +0300 |
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committer | Steffen Klassert <steffen.klassert@secunet.com> | 2017-12-20 12:41:36 +0300 |
commit | f53c723902d1ac5f0b0a11d7c9dcbff748dde74e (patch) | |
tree | 50841e9a0ff29530ee84e262857333925e09f2ff /include/net/xfrm.h | |
parent | 3dca3f38cfb8efb8571040568cac7d0025fa5bb1 (diff) | |
download | linux-f53c723902d1ac5f0b0a11d7c9dcbff748dde74e.tar.xz |
net: Add asynchronous callbacks for xfrm on layer 2.
This patch implements asynchronous crypto callbacks
and a backlog handler that can be used when IPsec
is done at layer 2 in the TX path. It also extends
the skb validate functions so that we can update
the driver transmit return codes based on async
crypto operation or to indicate that we queued the
packet in a backlog queue.
Joint work with: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'include/net/xfrm.h')
-rw-r--r-- | include/net/xfrm.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index df7f3d0ac4a1..2517c4f7781a 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1051,6 +1051,7 @@ struct xfrm_offload { #define XFRM_GSO_SEGMENT 16 #define XFRM_GRO 32 #define XFRM_ESP_NO_TRAILER 64 +#define XFRM_DEV_RESUME 128 __u32 status; #define CRYPTO_SUCCESS 1 @@ -1874,21 +1875,28 @@ static inline struct xfrm_state *xfrm_input_state(struct sk_buff *skb) { return skb->sp->xvec[skb->sp->len - 1]; } +#endif + static inline struct xfrm_offload *xfrm_offload(struct sk_buff *skb) { +#ifdef CONFIG_XFRM struct sec_path *sp = skb->sp; if (!sp || !sp->olen || sp->len != sp->olen) return NULL; return &sp->ovec[sp->olen - 1]; -} +#else + return NULL; #endif +} void __net_init xfrm_dev_init(void); #ifdef CONFIG_XFRM_OFFLOAD -struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features); +void xfrm_dev_resume(struct sk_buff *skb); +void xfrm_dev_backlog(struct softnet_data *sd); +struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features, bool *again); int xfrm_dev_state_add(struct net *net, struct xfrm_state *x, struct xfrm_user_offload *xuo); bool xfrm_dev_offload_ok(struct sk_buff *skb, struct xfrm_state *x); @@ -1929,7 +1937,15 @@ static inline void xfrm_dev_state_free(struct xfrm_state *x) } } #else -static inline struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features) +static inline void xfrm_dev_resume(struct sk_buff *skb) +{ +} + +static inline void xfrm_dev_backlog(struct softnet_data *sd) +{ +} + +static inline struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features, bool *again) { return skb; } |