create bsd12 branch

net/libssh2/files/patch-src_libssh2__priv.h

@@ -0,0 +1,47 @@
+--- src/libssh2_priv.h.orig	2016-02-24 22:44:12 UTC
++++ src/libssh2_priv.h
+@@ -154,7 +154,7 @@ static inline int writev(int sock, struc
+  * padding length, payload, padding, and MAC.)."
+  */
+ #define MAX_SSH_PACKET_LEN 35000
+-#define MAX_SHA_DIGEST_LEN SHA256_DIGEST_LENGTH
++#define MAX_SHA_DIGEST_LEN SHA512_DIGEST_LENGTH
+ 
+ #define LIBSSH2_ALLOC(session, count) \
+   session->alloc((count), &(session)->abstract)
+@@ -271,10 +271,13 @@ typedef struct key_exchange_state_low_t
+     kmdhgGPshakex_state_t exchange_state;
+     _libssh2_bn *p;             /* SSH2 defined value (p_value) */
+     _libssh2_bn *g;             /* SSH2 defined value (2) */
+-    unsigned char request[13];
++    unsigned char request[256]; /* Must fit EC_MAX_POINT_LEN + data */
+     unsigned char *data;
+     size_t request_len;
+     size_t data_len;
++    _libssh2_ec_key *private_key;   /* SSH2 ecdh private key */
++    unsigned char *public_key_oct;  /* SSH2 ecdh public key octal value */
++    size_t public_key_oct_len;      /* SSH2 ecdh public key octal value length */
+ } key_exchange_state_low_t;
+ 
+ typedef struct key_exchange_state_t
+@@ -609,6 +612,9 @@ struct _LIBSSH2_SESSION
+     unsigned char server_hostkey_sha1[SHA_DIGEST_LENGTH];
+     int server_hostkey_sha1_valid;
+ 
++    unsigned char server_hostkey_sha256[SHA256_DIGEST_LENGTH];
++    int server_hostkey_sha256_valid;
++
+     /* (remote as source of data -- packet_read ) */
+     libssh2_endpoint_data remote;
+ 
+@@ -983,6 +989,10 @@ _libssh2_debug(LIBSSH2_SESSION * session
+ #define SSH_MSG_KEX_DH_GEX_INIT                     32
+ #define SSH_MSG_KEX_DH_GEX_REPLY                    33
+ 
++/* ecdh */
++#define SSH2_MSG_KEX_ECDH_INIT                      30
++#define SSH2_MSG_KEX_ECDH_REPLY                     31
++
+ /* User Authentication */
+ #define SSH_MSG_USERAUTH_REQUEST                    50
+ #define SSH_MSG_USERAUTH_FAILURE                    51