More linker bloat reorganisation:

Split private key PEM and normal PEM handling. Private key
handling needs to link in stuff like PKCS#8.

Relocate the ASN1 *_dup() functions, to the relevant ASN1
modules using new macro IMPLEMENT_ASN1_DUP_FUNCTION. Previously
these were all in crypto/x509/x_all.c along with every ASN1
BIO/fp function which linked in *every* ASN1 function if
a single dup was used.

Move the authority key id ASN1 structure to a separate file.
This is used in the X509 routines and its previous location
linked in all the v3 extension code.

Also move ASN1_tag2bit to avoid linking in a_bytes.c which
is now largely obsolete.

So far under Linux stripped binary with single PEM_read_X509
is now 238K compared to 380K before these changes.

1 files changed, 139 insertions, 0 deletions

diff --git a/crypto/pem/pem_pkey.c b/crypto/pem/pem_pkey.c
new file mode 100644
index 0000000000..270892d72b
--- /dev/null
+++ b/crypto/pem/pem_pkey.c
@@ -0,0 +1,139 @@
+/* crypto/pem/pem_pkey.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+#include <openssl/x509.h>
+#include <openssl/pkcs12.h>
+#include <openssl/pem.h>
+
+
+EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
+	{
+	char *nm=NULL;
+	unsigned char *p=NULL,*data=NULL;
+	long len;
+	EVP_PKEY *ret=NULL;
+
+	if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u))
+		return NULL;
+	p = data;
+
+	if (strcmp(nm,PEM_STRING_RSA) == 0)
+		ret=d2i_PrivateKey(EVP_PKEY_RSA,x,&p,len);
+	else if (strcmp(nm,PEM_STRING_DSA) == 0)
+		ret=d2i_PrivateKey(EVP_PKEY_DSA,x,&p,len);
+	else if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
+		PKCS8_PRIV_KEY_INFO *p8inf;
+		p8inf=d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
+		ret = EVP_PKCS82PKEY(p8inf);
+		PKCS8_PRIV_KEY_INFO_free(p8inf);
+	} else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
+		PKCS8_PRIV_KEY_INFO *p8inf;
+		X509_SIG *p8;
+		int klen;
+		char psbuf[PEM_BUFSIZE];
+		p8 = d2i_X509_SIG(NULL, &p, len);
+		if(!p8) goto p8err;
+		if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
+		else klen=PEM_def_callback(psbuf,PEM_BUFSIZE,0,u);
+		if (klen <= 0) {
+			PEMerr(PEM_F_PEM_ASN1_READ_BIO,
+					PEM_R_BAD_PASSWORD_READ);
+			goto err;
+		}
+		p8inf = PKCS8_decrypt(p8, psbuf, klen);
+		X509_SIG_free(p8);
+		if(!p8inf) goto p8err;
+		ret = EVP_PKCS82PKEY(p8inf);
+		if(x) {
+			if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
+			*x = ret;
+		}
+		PKCS8_PRIV_KEY_INFO_free(p8inf);
+	}
+p8err:
+	if (ret == NULL)
+		PEMerr(PEM_F_PEM_ASN1_READ_BIO,ERR_R_ASN1_LIB);
+err:
+	OPENSSL_free(nm);
+	OPENSSL_free(data);
+	return(ret);
+	}
+
+#ifndef OPENSSL_NO_FP_API
+EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
+	{
+        BIO *b;
+        EVP_PKEY *ret;
+
+        if ((b=BIO_new(BIO_s_file())) == NULL)
+		{
+		PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
+                return(0);
+		}
+        BIO_set_fp(b,fp,BIO_NOCLOSE);
+        ret=PEM_read_bio_PrivateKey(b,x,cb,u);
+        BIO_free(b);
+        return(ret);
+	}
+#endif