diff options
Diffstat (limited to 'include/net/tls.h')
| -rw-r--r-- | include/net/tls.h | 74 |
1 files changed, 56 insertions, 18 deletions
diff --git a/include/net/tls.h b/include/net/tls.h index 41b2d41bb1b8..c664e6dba0d1 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -41,6 +41,7 @@ #include <linux/tcp.h> #include <linux/skmsg.h> #include <linux/netdevice.h> +#include <linux/rcupdate.h> #include <net/tcp.h> #include <net/strparser.h> @@ -274,22 +275,13 @@ struct tls_context { struct proto *sk_proto; void (*sk_destruct)(struct sock *sk); - void (*sk_proto_close)(struct sock *sk, long timeout); - - int (*setsockopt)(struct sock *sk, int level, - int optname, char __user *optval, - unsigned int optlen); - int (*getsockopt)(struct sock *sk, int level, - int optname, char __user *optval, - int __user *optlen); - int (*hash)(struct sock *sk); - void (*unhash)(struct sock *sk); union tls_crypto_context crypto_send; union tls_crypto_context crypto_recv; struct list_head list; refcount_t refcount; + struct rcu_head rcu; }; enum tls_offload_ctx_dir { @@ -348,7 +340,7 @@ struct tls_offload_context_rx { #define TLS_OFFLOAD_CONTEXT_SIZE_RX \ (sizeof(struct tls_offload_context_rx) + TLS_DRIVER_STATE_SIZE_RX) -void tls_ctx_free(struct tls_context *ctx); +void tls_ctx_free(struct sock *sk, struct tls_context *ctx); int wait_on_pending_writer(struct sock *sk, long *timeo); int tls_sk_query(struct sock *sk, int optname, char __user *optval, int __user *optlen); @@ -374,13 +366,9 @@ ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos, struct pipe_inode_info *pipe, size_t len, unsigned int flags); -int tls_set_device_offload(struct sock *sk, struct tls_context *ctx); int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); int tls_device_sendpage(struct sock *sk, struct page *page, int offset, size_t size, int flags); -void tls_device_free_resources_tx(struct sock *sk); -void tls_device_init(void); -void tls_device_cleanup(void); int tls_tx_records(struct sock *sk, int flags); struct tls_record_info *tls_get_record(struct tls_offload_context_tx *context, @@ -429,6 +417,23 @@ static inline bool is_tx_ready(struct tls_sw_context_tx *ctx) return READ_ONCE(rec->tx_ready); } +static inline u16 tls_user_config(struct tls_context *ctx, bool tx) +{ + u16 config = tx ? ctx->tx_conf : ctx->rx_conf; + + switch (config) { + case TLS_BASE: + return TLS_CONF_BASE; + case TLS_SW: + return TLS_CONF_SW; + case TLS_HW: + return TLS_CONF_HW; + case TLS_HW_RECORD: + return TLS_CONF_HW_RECORD; + } + return 0; +} + struct sk_buff * tls_validate_xmit_skb(struct sock *sk, struct net_device *dev, struct sk_buff *skb); @@ -467,7 +472,10 @@ static inline struct tls_context *tls_get_ctx(const struct sock *sk) { struct inet_connection_sock *icsk = inet_csk(sk); - return icsk->icsk_ulp_data; + /* Use RCU on icsk_ulp_data only for sock diag code, + * TLS data path doesn't need rcu_dereference(). + */ + return (__force void *)icsk->icsk_ulp_data; } static inline void tls_advance_record_sn(struct sock *sk, @@ -637,7 +645,6 @@ int tls_proccess_cmsg(struct sock *sk, struct msghdr *msg, unsigned char *record_type); void tls_register_device(struct tls_device *device); void tls_unregister_device(struct tls_device *device); -int tls_device_decrypted(struct sock *sk, struct sk_buff *skb); int decrypt_skb(struct sock *sk, struct sk_buff *skb, struct scatterlist *sgout); struct sk_buff *tls_encrypt_skb(struct sk_buff *skb); @@ -650,9 +657,40 @@ int tls_sw_fallback_init(struct sock *sk, struct tls_offload_context_tx *offload_ctx, struct tls_crypto_info *crypto_info); +#ifdef CONFIG_TLS_DEVICE +void tls_device_init(void); +void tls_device_cleanup(void); +int tls_set_device_offload(struct sock *sk, struct tls_context *ctx); +void tls_device_free_resources_tx(struct sock *sk); int tls_set_device_offload_rx(struct sock *sk, struct tls_context *ctx); - void tls_device_offload_cleanup_rx(struct sock *sk); void tls_device_rx_resync_new_rec(struct sock *sk, u32 rcd_len, u32 seq); +int tls_device_decrypted(struct sock *sk, struct sk_buff *skb); +#else +static inline void tls_device_init(void) {} +static inline void tls_device_cleanup(void) {} + +static inline int +tls_set_device_offload(struct sock *sk, struct tls_context *ctx) +{ + return -EOPNOTSUPP; +} +static inline void tls_device_free_resources_tx(struct sock *sk) {} + +static inline int +tls_set_device_offload_rx(struct sock *sk, struct tls_context *ctx) +{ + return -EOPNOTSUPP; +} + +static inline void tls_device_offload_cleanup_rx(struct sock *sk) {} +static inline void +tls_device_rx_resync_new_rec(struct sock *sk, u32 rcd_len, u32 seq) {} + +static inline int tls_device_decrypted(struct sock *sk, struct sk_buff *skb) +{ + return 0; +} +#endif #endif /* _TLS_OFFLOAD_H */ |