1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/net/wireless/hostap/hostap_crypt.h b/drivers/net/wireless/hostap/hostap_crypt.h
new file mode 100644
index 000000000000..45d66d0323b0
--- /dev/null
+++ b/drivers/net/wireless/hostap/hostap_crypt.h
@@ -0,0 +1,50 @@
+#ifndef PRISM2_CRYPT_H
+#define PRISM2_CRYPT_H
+
+struct hostap_crypto_ops {
+        char *name;
+
+        /* init new crypto context (e.g., allocate private data space,
+         * select IV, etc.); returns NULL on failure or pointer to allocated
+         * private data on success */
+        void * (*init)(int keyidx);
+
+        /* deinitialize crypto context and free allocated private data */
+        void (*deinit)(void *priv);
+
+        /* encrypt/decrypt return < 0 on error or >= 0 on success. The return
+         * value from decrypt_mpdu is passed as the keyidx value for
+         * decrypt_msdu. skb must have enough head and tail room for the
+         * encryption; if not, error will be returned; these functions are
+         * called for all MPDUs (i.e., fragments).
+         */
+        int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
+        int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
+
+        /* These functions are called for full MSDUs, i.e. full frames.
+         * These can be NULL if full MSDU operations are not needed. */
+        int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
+        int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
+                            void *priv);
+
+        int (*set_key)(void *key, int len, u8 *seq, void *priv);
+        int (*get_key)(void *key, int len, u8 *seq, void *priv);
+
+        /* procfs handler for printing out key information and possible
+         * statistics */
+        char * (*print_stats)(char *p, void *priv);
+
+        /* maximum number of bytes added by encryption; encrypt buf is
+         * allocated with extra_prefix_len bytes, copy of in_buf, and
+         * extra_postfix_len; encrypt need not use all this space, but
+         * the result must start at the beginning of the buffer and correct
+         * length must be returned */
+        int extra_prefix_len, extra_postfix_len;
+};
+
+
+int hostap_register_crypto_ops(struct hostap_crypto_ops *ops);
+int hostap_unregister_crypto_ops(struct hostap_crypto_ops *ops);
+struct hostap_crypto_ops * hostap_get_crypto_ops(const char *name);
+
+#endif /* PRISM2_CRYPT_H */