New function to dup EVP_PKEY_CTX. This will be needed to make new signing

functions and EVP_MD_CTX_copy work properly.

diff --git a/crypto/dh/dh_pmeth.c b/crypto/dh/dh_pmeth.c
index b8b1362ebaecba296f0946ae4e437f288d8488a8..5803b1d7114b5e03bf6b0ff59b1117ebf73580d9 100644 (file)
--- a/crypto/dh/dh_pmeth.c
+++ b/crypto/dh/dh_pmeth.c
@@ -93,6 +93,19 @@ static int pkey_dh_init(EVP_PKEY_CTX *ctx)
        return 1;
        }
 
+static int pkey_dh_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
+       {
+       DH_PKEY_CTX *dctx, *sctx;
+       if (!pkey_dh_init(dst))
+               return 0;
+               sctx = src->data;
+       dctx = dst->data;
+       dctx->prime_len = sctx->prime_len;
+       dctx->generator = sctx->generator;
+       dctx->use_dsa = sctx->use_dsa;
+       return 1;
+       }
+
 static void pkey_dh_cleanup(EVP_PKEY_CTX *ctx)
        {
        DH_PKEY_CTX *dctx = ctx->data;
@@ -208,6 +221,7 @@ const EVP_PKEY_METHOD dh_pkey_meth =
        EVP_PKEY_DH,
        EVP_PKEY_FLAG_AUTOARGLEN,
        pkey_dh_init,
+       pkey_dh_copy,
        pkey_dh_cleanup,
 
        0,

diff --git a/crypto/dsa/dsa_pmeth.c b/crypto/dsa/dsa_pmeth.c
index 9909dc8f3b7476514b3b0a9534e6c2314a76bdd1..cdd6440dc37f25a97b8b36657783fa8272271170 100644 (file)
--- a/crypto/dsa/dsa_pmeth.c
+++ b/crypto/dsa/dsa_pmeth.c
@@ -91,6 +91,18 @@ static int pkey_dsa_init(EVP_PKEY_CTX *ctx)
        return 1;
        }
 
+static int pkey_dsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
+       {
+       DSA_PKEY_CTX *dctx, *sctx;
+       if (!pkey_dsa_init(dst))
+               return 0;
+               sctx = src->data;
+       dctx = dst->data;
+       dctx->nbits = sctx->nbits;
+       dctx->md = sctx->md;
+       return 1;
+       }
+
 static void pkey_dsa_cleanup(EVP_PKEY_CTX *ctx)
        {
        DSA_PKEY_CTX *dctx = ctx->data;
@@ -223,6 +235,7 @@ const EVP_PKEY_METHOD dsa_pkey_meth =
        EVP_PKEY_DSA,
        EVP_PKEY_FLAG_AUTOARGLEN,
        pkey_dsa_init,
+       pkey_dsa_copy,
        pkey_dsa_cleanup,
 
        0,

diff --git a/crypto/ec/ec_pmeth.c b/crypto/ec/ec_pmeth.c
index 760200892ec45ff12346969b3f0edf2d1a6686e5..caaeebdb6d0fed0bcee7841585b562a23a0dd8e0 100644 (file)
--- a/crypto/ec/ec_pmeth.c
+++ b/crypto/ec/ec_pmeth.c
@@ -88,6 +88,23 @@ static int pkey_ec_init(EVP_PKEY_CTX *ctx)
        return 1;
        }
 
+static int pkey_ec_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
+       {
+       EC_PKEY_CTX *dctx, *sctx;
+       if (!pkey_ec_init(dst))
+               return 0;
+               sctx = src->data;
+       dctx = dst->data;
+       if (sctx->gen_group)
+               {
+               dctx->gen_group = EC_GROUP_dup(sctx->gen_group);
+               if (!dctx->gen_group)
+                       return 0;
+               }
+       dctx->md = sctx->md;
+       return 1;
+       }
+
 static void pkey_ec_cleanup(EVP_PKEY_CTX *ctx)
        {
        EC_PKEY_CTX *dctx = ctx->data;
@@ -284,6 +301,7 @@ const EVP_PKEY_METHOD ec_pkey_meth =
        EVP_PKEY_EC,
        0,
        pkey_ec_init,
+       pkey_ec_copy,
        pkey_ec_cleanup,
 
        0,

diff --git a/crypto/evp/evp_locl.h b/crypto/evp/evp_locl.h
index c8a12e2fa5d094b1504f0d5096507e1062fa9720..930959f5248346c27a50b7ae49362ed681654114 100644 (file)
--- a/crypto/evp/evp_locl.h
+++ b/crypto/evp/evp_locl.h
@@ -264,6 +264,7 @@ struct evp_pkey_method_st
        int flags;
 
        int (*init)(EVP_PKEY_CTX *ctx);
+       int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src);
        void (*cleanup)(EVP_PKEY_CTX *ctx);
 
        int (*paramgen_init)(EVP_PKEY_CTX *ctx);

diff --git a/crypto/evp/pmeth_lib.c b/crypto/evp/pmeth_lib.c
index 6db6b17899570b9dea5ab43703ccf96b48635c13..069cdaf3ffb9602d294ee82606e97b210a030858 100644 (file)
--- a/crypto/evp/pmeth_lib.c
+++ b/crypto/evp/pmeth_lib.c
@@ -150,6 +150,7 @@ EVP_PKEY_METHOD* EVP_PKEY_meth_new(int id, int flags)
        pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
 
        pmeth->init = 0;
+       pmeth->copy = 0;
        pmeth->cleanup = 0;
        pmeth->paramgen_init = 0;
        pmeth->paramgen = 0;
@@ -193,6 +194,41 @@ EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
        return int_ctx_new(NULL, e, id);
        }
 
+EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx)
+       {
+       EVP_PKEY_CTX *rctx;
+       if (!pctx->pmeth || !pctx->pmeth->copy)
+               return NULL;
+       rctx = OPENSSL_malloc(sizeof(EVP_PKEY_CTX));
+       if (!rctx)
+               return NULL;
+
+       rctx->pmeth = pctx->pmeth;
+
+       if (pctx->pkey)
+               {
+               CRYPTO_add(&pctx->pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
+               rctx->pkey = pctx->pkey;
+               }
+
+       if (pctx->peerkey)
+               {
+               CRYPTO_add(&pctx->peerkey->references,1,CRYPTO_LOCK_EVP_PKEY);
+               rctx->peerkey = pctx->peerkey;
+               }
+
+       rctx->data = NULL;
+       rctx->app_data = NULL;
+       rctx->operation = pctx->operation;
+
+       if (pctx->pmeth->copy(rctx, pctx) > 0)
+               return pctx;
+
+       EVP_PKEY_CTX_free(rctx);
+       return NULL;
+
+       }
+
 int EVP_PKEY_meth_add0(const EVP_PKEY_METHOD *pmeth)
        {
        if (app_pkey_methods == NULL)
@@ -305,6 +341,12 @@ void EVP_PKEY_meth_set_init(EVP_PKEY_METHOD *pmeth,
        pmeth->init = init;
        }
 
+void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
+       int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src))
+       {
+       pmeth->copy = copy;
+       }
+
 void EVP_PKEY_meth_set_cleanup(EVP_PKEY_METHOD *pmeth,
        void (*cleanup)(EVP_PKEY_CTX *ctx))
        {

diff --git a/crypto/rsa/rsa_pmeth.c b/crypto/rsa/rsa_pmeth.c
index 168a33ee56fd3a1e3a39bff2bbd4c4680bc6271d..9f4a2ca336abd16204a0a14c5a49ad188e46389e 100644 (file)
--- a/crypto/rsa/rsa_pmeth.c
+++ b/crypto/rsa/rsa_pmeth.c
@@ -109,6 +109,25 @@ static int pkey_rsa_init(EVP_PKEY_CTX *ctx)
        return 1;
        }
 
+static int pkey_rsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
+       {
+       RSA_PKEY_CTX *dctx, *sctx;
+       if (!pkey_rsa_init(dst))
+               return 0;
+               sctx = src->data;
+       dctx = dst->data;
+       dctx->nbits = sctx->nbits;
+       if (sctx->pub_exp)
+               {
+               dctx->pub_exp = BN_dup(sctx->pub_exp);
+               if (!dctx->pub_exp)
+                       return 0;
+               }
+       dctx->pad_mode = sctx->pad_mode;
+       dctx->md = sctx->md;
+       return 1;
+       }
+
 static int setup_tbuf(RSA_PKEY_CTX *ctx, EVP_PKEY_CTX *pk)
        {
        if (ctx->tbuf)
@@ -523,6 +542,7 @@ const EVP_PKEY_METHOD rsa_pkey_meth =
        EVP_PKEY_RSA,
        EVP_PKEY_FLAG_AUTOARGLEN,
        pkey_rsa_init,
+       pkey_rsa_copy,
        pkey_rsa_cleanup,
 
        0,0,