px5g: replace px5g-standalone with a statically linked variant of px5g-mbedtls

px5g-standalone only supports SHA1 for certificates, which is strongly
deprecated. The new px5g-standalone is about 27k bigger (compressed),
and has identical behavior to px5g-mbedtls (it uses SHA256).

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 0 insertions, 1162 deletions

diff --git a/package/utils/px5g-standalone/src/library/x509write.c b/package/utils/px5g-standalone/src/library/x509write.c
deleted file mode 100644
index 2b0eb71563..0000000000
--- a/package/utils/px5g-standalone/src/library/x509write.c
+++ /dev/null
@@ -1,1162 +0,0 @@
-/*
- *  X.509 certificate and private key writing
- *
- *  Copyright (C) 2006-2007  Pascal Vizeli <pvizeli@yahoo.de>
- *  Modifications (C) 2009 Steven Barth <steven@midlink.org>
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Lesser General Public
- *  License, version 2.1 as published by the Free Software Foundation.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Lesser General Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- *  MA  02110-1301  USA
- */
-/*
- *  The ITU-T X.509 standard defines a certificat format for PKI.
- *
- *  http://www.ietf.org/rfc/rfc2459.txt
- *  http://www.ietf.org/rfc/rfc3279.txt
- *
- *  ftp://ftp.rsasecurity.com/pub/pkcs/ascii/pkcs-1v2.asc
- *
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
- *  http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
- *
- *  For CRS:
- *  http://www.faqs.org/rfcs/rfc2314.html
- */
-#include "polarssl/config.h"
-#include "polarssl/x509.h"
-#include "polarssl/base64.h"
-#include "polarssl/sha1.h"
-
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <time.h>
-
-#define and &&
-#define or ||
-
-#if defined _MSC_VER && !defined snprintf
-#define snprintf _snprintf
-#endif
-
-static int x509write_realloc_node(x509_node *node, size_t larger);
-static int x509write_file(x509_node *node, char *path, int format, const char* pem_prolog, const char* pem_epilog);
-
-/*
- * evaluate how mani octet have this integer
- */
-static int asn1_eval_octet(unsigned int digit)
-{
-    int i, byte;
-
-    for (byte = 4, i = 24; i >= 0; i -= 8, --byte)
-        if (((digit >> i) & 0xFF) != 0)
-            return byte;
-
-    return 0;
-}
-
-/*
- * write the asn.1 lenght form into p
- */
-static int asn1_add_len(unsigned int size, x509_node *node)
-{
-    if (size > 127) {
-
-        /* long size */
-        int byte = asn1_eval_octet(size);
-        int i = 0;
-
-        *(node->p) = (0x80 | byte) & 0xFF;
-        ++node->p;
-
-        for (i = byte; i > 0; --i) {
-
-            *(node->p) = (size >> ((i - 1) * 8)) & 0xFF;
-            ++node->p;
-        }
-
-    } else {
-
-        /* short size */
-        *(node->p) = size & 0xFF;
-        if (size != 0)
-            ++node->p;
-    }
-
-    return 0;
-}
-
-/*
- * write a ans.1 object into p
- */
-static int asn1_add_obj(unsigned char *value, unsigned int size, int tag,
-        x509_node *node)
-{
-    int tl = 2;
-
-    if (tag == ASN1_BIT_STRING)
-        ++tl;
-
-    if (size > 127)
-        x509write_realloc_node(node, (size_t) size + tl +
-                asn1_eval_octet(size));
-    else
-        x509write_realloc_node(node, (size_t) size + tl);
-
-    if (node->data == NULL)
-        return 1;
-
-    /* tag */
-    *(node->p) = tag & 0xFF;
-    ++node->p;
-
-    /* len */
-    if (tag == ASN1_BIT_STRING) {
-        asn1_add_len((unsigned int) size + 1, node);
-        *(node->p) = 0x00;
-        ++node->p;
-    } else {
-        asn1_add_len((unsigned int) size, node);
-    }
-
-    /* value */
-    if (size > 0) {
-
-        memcpy(node->p, value, (size_t) size);
-        if ((node->p += size -1) != node->end)
-            return POLARSSL_ERR_X509_POINT_ERROR;
-    } else {
-        /* make nothing -> NULL */
-    }
-
-    return 0;
-}
-
-/*
- * write a asn.1 conform integer object
- */
-static int asn1_add_int(signed int value, x509_node *node)
-{
-    signed int i = 0, neg = 1;
-    unsigned int byte, u_val = 0, tmp_val = 0;
-
-    /* if negate? */
-    if (value < 0) {
-        neg = -1;
-        u_val = ~value;
-    } else {
-        u_val = value;
-    }
-
-    byte = asn1_eval_octet(u_val);
-    /* 0 isn't NULL */
-    if (byte == 0)
-        byte = 1;
-
-    /* ASN.1 integer is signed! */
-    if (byte < 4 and ((u_val >> ((byte -1) * 8)) & 0xFF) == 0x80)
-        byte += 1;
-
-    if (x509write_realloc_node(node, (size_t) byte + 2) != 0)
-        return 1;
-
-    /* tag */
-    *(node->p) = ASN1_INTEGER;
-    ++node->p;
-
-    /* len */
-    asn1_add_len(byte, node);
-
-    /* value */
-    for (i = byte; i > 0; --i) {
-
-        tmp_val = (u_val >> ((i - 1) * 8)) & 0xFF;
-        if (neg == 1)
-            *(node->p) = tmp_val;
-        else
-            *(node->p) = ~tmp_val;
-
-        if (i > 1)
-          ++node->p;
-    }
-
-    if (node->p != node->end)
-        return POLARSSL_ERR_X509_POINT_ERROR;
-
-    return 0;
-}
-
-/*
- * write a asn.1 conform mpi object
- */
-static int asn1_add_mpi(mpi *value, int tag, x509_node *node)
-{
-    size_t size = (mpi_msb(value) / 8) + 1;
-    unsigned char *buf;
-    int buf_len = (int) size, tl = 2;
-
-    if (tag == ASN1_BIT_STRING)
-        ++tl;
-
-    if (size > 127)
-        x509write_realloc_node(node, size + (size_t) tl +
-            asn1_eval_octet((unsigned int)size));
-    else
-        x509write_realloc_node(node, size + (size_t) tl);
-
-    if (node->data == NULL)
-        return 1;
-
-    buf = (unsigned char*) malloc(size);
-    if (mpi_write_binary(value, buf, buf_len) != 0)
-        return POLARSSL_ERR_MPI_BUFFER_TOO_SMALL;
-
-    /* tag */
-    *(node->p) = tag & 0xFF;
-    ++node->p;
-
-    /* len */
-    if (tag == ASN1_BIT_STRING) {
-        asn1_add_len((unsigned int) size + 1, node);
-        *(node->p) = 0x00;
-        ++node->p;
-    } else {
-        asn1_add_len((unsigned int) size, node);
-    }
-
-    /* value */
-    memcpy(node->p, buf, size);
-    free(buf);
-
-    if ((node->p += (int) size -1) != node->end)
-        return POLARSSL_ERR_X509_POINT_ERROR;
-
-    return 0;
-}
-
-/*
- * write a node into asn.1 conform object
- */
-static int asn1_append_tag(x509_node *node, int tag)
-{
-    int tl = 2;
-
-    x509_node tmp;
-    x509write_init_node(&tmp);
-
-    if (tag == ASN1_BIT_STRING)
-        ++tl;
-
-    if (node->len > 127)
-        x509write_realloc_node(&tmp, node->len + (size_t) tl +
-            asn1_eval_octet((unsigned int)node->len));
-    else
-        x509write_realloc_node(&tmp, node->len + (size_t) tl);
-
-    if (tmp.data == NULL) {
-        x509write_free_node(&tmp);
-        return 1;
-    }
-
-    /* tag */
-    *(tmp.p) = tag & 0xFF;
-    ++tmp.p;
-
-    /* len */
-    if (tag == ASN1_BIT_STRING) {
-        asn1_add_len((unsigned int) node->len + 1, &tmp);
-        *(tmp.p) = 0x00;
-        ++tmp.p;
-    } else {
-        asn1_add_len((unsigned int) node->len, &tmp);
-    }
-
-    /* value */
-    memcpy(tmp.p, node->data, node->len);
-
-    /* good? */
-    if ((tmp.p += (int) node->len -1) != tmp.end) {
-        x509write_free_node(&tmp);
-        return POLARSSL_ERR_X509_POINT_ERROR;
-    }
-
-    free(node->data);
-    node->data = tmp.data;
-    node->p = tmp.p;
-    node->end = tmp.end;
-    node->len = tmp.len;
-
-    return 0;
-}
-
-/*
- * write nodes into a asn.1 object
- */
-static int asn1_append_nodes(x509_node *node, int tag, int anz, ...)
-{
-    va_list ap;
-    size_t size = 0;
-    x509_node *tmp;
-    int count;
-
-    va_start(ap, anz);
-    count = anz;
-
-    while (count--) {
-
-        tmp = va_arg(ap, x509_node*);
-        if (tmp->data != NULL)
-            size += tmp->len;
-    }
-
-    if ( size > 127) {
-        if (x509write_realloc_node(node, size + (size_t) 2 +
-                    asn1_eval_octet(size)) != 0)
-            return 1;
-    } else {
-        if (x509write_realloc_node(node, size + (size_t) 2) != 0)
-            return 1;
-    }
-
-    /* tag */
-    *(node->p) = tag & 0xFF;
-    ++node->p;
-
-    /* len */
-    asn1_add_len(size, node);
-
-    /* value */
-    va_start(ap, anz);
-    count = anz;
-
-    while (count--) {
-
-        tmp = va_arg(ap, x509_node*);
-        if (tmp->data != NULL) {
-
-            memcpy(node->p, tmp->data, tmp->len);
-            if ((node->p += (int) tmp->len -1) != node->end)
-                ++node->p;
-        }
-    }
-
-    va_end(ap);
-    return 0;
-}
-
-/*
- * write a ASN.1 conform object identifiere include a "tag"
- */
-static int asn1_add_oid(x509_node *node, unsigned char *oid, size_t len,
-        int tag, int tag_val, unsigned char *value, size_t val_len)
-{
-    int ret;
-    x509_node tmp;
-
-    x509write_init_node(&tmp);
-
-    /* OBJECT IDENTIFIER */
-    if ((ret = asn1_add_obj(oid, len, ASN1_OID, &tmp)) != 0) {
-        x509write_free_node(&tmp);
-        return ret;
-    }
-
-    /* value */
-    if ((ret = asn1_add_obj(value, val_len, tag_val, &tmp)) != 0) {
-        x509write_free_node(&tmp);
-        return ret;
-    }
-
-    /* SET/SEQUENCE */
-    if ((ret = asn1_append_nodes(node, tag, 1, &tmp)) != 0) {
-        x509write_free_node(&tmp);
-        return ret;
-    }
-
-    x509write_free_node(&tmp);
-    return 0;
-}
-
-/*
- *  utcTime        UTCTime
- */
-static int asn1_add_date_utc(unsigned char *time, x509_node *node)
-{
-    unsigned char date[13], *sp;
-    x509_time xtime;
-    int ret;
-
-    sscanf((char*)time, "%d-%d-%d %d:%d:%d", &xtime.year, &xtime.mon,
-    	&xtime.day, &xtime.hour, &xtime.min, &xtime.sec);
-
-    /* convert to YY */
-    if (xtime.year > 2000)
-        xtime.year -= 2000;
-    else
-        xtime.year -= 1900;
-
-    snprintf((char*)date, 13, "%2d%2d%2d%2d%2d%2d", xtime.year, xtime.mon, xtime.day,
-        xtime.hour, xtime.min, xtime.sec);
-
-    /* replace ' ' to '0' */
-    for (sp = date; *sp != '\0'; ++sp)
-        if (*sp == '\x20')
-            *sp = '\x30';
-
-    date[12] = 'Z';
-
-    if ((ret = asn1_add_obj(date, 13, ASN1_UTC_TIME, node)) != 0)
-        return ret;
-
-    return 0;
-}
-
-/*
- * serialize an rsa key into DER
- */
-
-int x509write_serialize_key(rsa_context *rsa, x509_node *node)
-{
-    int ret = 0;
-    x509write_init_node(node);
-
-    /* vers, n, e, d, p, q, dp, dq, pq */
-    if ((ret = asn1_add_int(rsa->ver, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->N, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->E, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->D, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->P, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->Q, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->DP, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->DQ, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_add_mpi(&rsa->QP, ASN1_INTEGER, node)) != 0)
-        return ret;
-    if ((ret = asn1_append_tag(node, ASN1_CONSTRUCTED | ASN1_SEQUENCE)) != 0)
-        return ret;
-
-    return 0;
-}
-
-/*
- * write a der/pem encoded rsa private key into a file
- */
-int x509write_keyfile(rsa_context *rsa, char *path, int out_flag)
-{
-    int ret = 0;
-    const char	key_beg[] = "-----BEGIN RSA PRIVATE KEY-----\n",
-                key_end[] = "-----END RSA PRIVATE KEY-----\n";
-    x509_node node;
-
-    x509write_init_node(&node);
-    if ((ret = x509write_serialize_key(rsa,&node)) != 0) {
-        x509write_free_node(&node);
-	      return ret;
-    }
-
-    ret = x509write_file(&node,path,out_flag,key_beg,key_end);
-    x509write_free_node(&node);
-
-    return ret;
-}
-
-
-/*
- * reasize the memory for node
- */
-static int x509write_realloc_node(x509_node *node, size_t larger)
-{
-    /* init len */
-    if (node->data == NULL) {
-        node->len = 0;
-        node->data = malloc(larger);
-        if(node->data == NULL)
-            return 1;
-    } else {
-        /* realloc memory */
-        if ((node->data = realloc(node->data, node->len + larger)) == NULL)
-            return 1;
-    }
-
-    /* init pointer */
-    node->p = &node->data[node->len];
-    node->len += larger;
-    node->end = &node->data[node->len -1];
-
-    return 0;
-}
-
-/*
- * init node
- */
-void x509write_init_node(x509_node *node)
-{
-    memset(node, 0, sizeof(x509_node));
-}
-
-/*
- * clean memory
- */
-void x509write_free_node(x509_node *node)
-{
-    if (node->data != NULL)
-        free(node->data);
-    node->p = NULL;
-    node->end = NULL;
-    node->len = 0;
-}
-
-/*
- * write a x509 certificate into file
- */
-int x509write_crtfile(x509_raw *chain, unsigned char *path, int out_flag)
-{
-    const char	cer_beg[] = "-----BEGIN CERTIFICATE-----\n",
-		cer_end[] = "-----END CERTIFICATE-----\n";
-
-    return x509write_file(&chain->raw, (char*)path, out_flag, cer_beg, cer_end);
-}
-
-/*
- * write a x509 certificate into file
- */
-int x509write_csrfile(x509_raw *chain, unsigned char *path, int out_flag)
-{
-    const char	cer_beg[] = "-----BEGIN CERTIFICATE REQUEST-----\n",
-		cer_end[] = "-----END CERTIFICATE REQUEST-----\n";
-
-    return x509write_file(&chain->raw, (char*)path, out_flag, cer_beg, cer_end);
-}
-
-/*
- * write an x509 file
- */
-static int x509write_file(x509_node *node, char *path, int format,
-        const char* pem_prolog, const char* pem_epilog)
-{
-    FILE *ofstream = stdout;
-    int is_err = 1, buf_len, i, n;
-    unsigned char* base_buf;
-
-    if (path) {
-    	if ((ofstream = fopen(path, "wb")) == NULL)
-    		return 1;
-    }
-
-    switch (format) {
-        case X509_OUTPUT_DER:
-            if (fwrite(node->data, 1, node->len, ofstream)
-                != node->len)
-                is_err = -1;
-            break;
-
-        case X509_OUTPUT_PEM:
-            if (fprintf(ofstream, "%s", pem_prolog)<0) {
-                is_err = -1;
-                break;
-            }
-
-            buf_len = node->len << 1;
-            base_buf = (unsigned char*) malloc((size_t)buf_len);
-            memset(base_buf,0,buf_len);
-            if (base64_encode(base_buf, &buf_len, node->data,
-                        (int) node->len) != 0) {
-                is_err = -1;
-                break;
-            }
-
-            n=strlen((char*)base_buf);
-            for(i=0;i<n;i+=64) {
-                fprintf(ofstream,"%.64s\n",&base_buf[i]);
-            }
-
-            if (fprintf(ofstream, "%s", pem_epilog)<0) {
-                is_err = -1;
-                break;
-            }
-
-            free(base_buf);
-    }
-
-    fclose(ofstream);
-
-    if (is_err == -1)
-        return 1;
-
-    return 0;
-}
-
-
-/*
- * add the owner public key to x509 certificate
- */
-int x509write_add_pubkey(x509_raw *chain, rsa_context *pubkey)
-{
-    x509_node n_tmp, n_tmp2, *node;
-    int ret;
-
-    node = &chain->subpubkey;
-
-    x509write_init_node(&n_tmp);
-    x509write_init_node(&n_tmp2);
-
-    /*
-    *  RSAPublicKey ::= SEQUENCE {
-    *      modulus           INTEGER,  -- n
-    *      publicExponent    INTEGER   -- e
-    *  }
-    */
-    if ((ret = asn1_add_mpi(&pubkey->N, ASN1_INTEGER, &n_tmp)) != 0) {
-        x509write_free_node(&n_tmp);
-        x509write_free_node(&n_tmp2);
-        return ret;
-    }
-    if ((ret = asn1_add_mpi(&pubkey->E, ASN1_INTEGER, &n_tmp)) != 0) {
-        x509write_free_node(&n_tmp);
-        x509write_free_node(&n_tmp2);
-        return ret;
-    }
-    if ((ret = asn1_append_tag(&n_tmp, ASN1_CONSTRUCTED | ASN1_SEQUENCE))
-            != 0) {
-        x509write_free_node(&n_tmp);
-        x509write_free_node(&n_tmp2);
-        return ret;
-    }
-
-    /*
-     *  SubjectPublicKeyInfo  ::=  SEQUENCE  {
-     *       algorithm            AlgorithmIdentifier,
-     *       subjectPublicKey     BIT STRING }
-     */
-    if ((ret = asn1_append_tag(&n_tmp, ASN1_BIT_STRING)) != 0) {
-        x509write_free_node(&n_tmp);
-        x509write_free_node(&n_tmp2);
-       return ret;
-    }
-    if ((ret = asn1_add_oid(&n_tmp2, (unsigned char*)OID_PKCS1_RSA, 9,
-                  ASN1_CONSTRUCTED | ASN1_SEQUENCE, ASN1_NULL,
-                  (unsigned char *)"", 0)) != 0) {
-        x509write_free_node(&n_tmp);
-        x509write_free_node(&n_tmp2);
-        return ret;
-    }
-
-    if ((ret = asn1_append_nodes(node, ASN1_CONSTRUCTED | ASN1_SEQUENCE, 2,
-                   &n_tmp2, &n_tmp))) {
-        x509write_free_node(&n_tmp);
-        x509write_free_node(&n_tmp2);
-        return ret;
-    }
-
-    x509write_free_node(&n_tmp);
-    x509write_free_node(&n_tmp2);
-    return 0;
-}
-
-/*
- *  RelativeDistinguishedName ::=
- *    SET OF AttributeTypeAndValue
- *
- *  AttributeTypeAndValue ::= SEQUENCE {
- *    type     AttributeType,
- *    value    AttributeValue }
- */
-static int x509write_add_name(x509_node *node, unsigned char *oid,
-        unsigned int oid_len, unsigned char *value, int len, int value_tag)
-{
-    int ret;
-    x509_node n_tmp;
-
-    x509write_init_node(&n_tmp);
-
-    if ((ret = asn1_add_oid(&n_tmp, oid, oid_len,
-                ASN1_CONSTRUCTED | ASN1_SEQUENCE, value_tag,
-                value, len))) {
-        x509write_free_node(&n_tmp);
-        return ret;
-    }
-
-    if ((asn1_append_nodes(node, ASN1_CONSTRUCTED | ASN1_SET, 1, &n_tmp))
-            != 0) {
-        x509write_free_node(&n_tmp);
-        return ret;
-    }
-
-    x509write_free_node(&n_tmp);
-    return 0;
-}
-
-/*
- * Parse the name string and add to node
- */
-static int x509write_parse_names(x509_node *node, unsigned char *names)
-{
-    unsigned char *sp, *begin = NULL;
-    unsigned char oid[3] = OID_X520, tag[4], *tag_sp = tag;
-    unsigned char *C = NULL, *CN = NULL, *O = NULL, *OU = NULL,
-                  *ST = NULL, *L = NULL, *R = NULL;
-    int C_len = 0, CN_len = 0, O_len = 0, OU_len = 0, ST_len = 0,
-		L_len = 0, R_len = 0;
-    int ret = 0, is_tag = 1, is_begin = -1, len = 0;
-
-
-    for (sp = names; ; ++sp) {
-
-        /* filter tag */
-        if (is_tag == 1) {
-
-            if (tag_sp == &tag[3])
-                return POLARSSL_ERR_X509_VALUE_TO_LENGTH;
-
-            /* is tag end? */
-            if (*sp == '=') {
-                is_tag = -1;
-                *tag_sp = '\0';
-                is_begin = 1;
-                /* set len 0 (reset) */
-                len = 0;
-            } else {
-                /* tag hasn't ' '! */
-                if (*sp != ' ') {
-                    *tag_sp = *sp;
-                    ++tag_sp;
-                }
-            }
-        /* filter value */
-        } else {
-
-            /* set pointer of value begin */
-            if (is_begin == 1) {
-                begin = sp;
-                is_begin = -1;
-            }
-
-            /* is value at end? */
-            if (*sp == ';' or *sp == '\0') {
-                is_tag = 1;
-
-                /* common name */
-                if (tag[0] == 'C' and tag[1] == 'N') {
-                    CN = begin;
-                    CN_len = len;
-
-                /* organization */
-                } else if (tag[0] == 'O' and tag[1] == '\0') {
-                    O = begin;
-                    O_len = len;
-
-                /* country */
-                } else if (tag[0] == 'C' and tag[1] == '\0') {
-                    C = begin;
-                    C_len = len;
-
-                /* organisation unit */
-                } else if (tag[0] == 'O' and tag[1] == 'U') {
-                    OU = begin;
-                    OU_len = len;
-
-                /* state */
-                } else if (tag[0] == 'S' and tag[1] == 'T') {
-                    ST = begin;
-                    ST_len = len;
-
-                /* locality */
-                } else if (tag[0] == 'L' and tag[1] == '\0') {
-                    L = begin;
-                    L_len = len;
-
-                /* email */
-                } else if (tag[0] == 'R' and tag[1] == '\0') {
-                    R = begin;
-                    R_len = len;
-                }
-
-                /* set tag poiner to begin */
-                tag_sp = tag;
-
-                /* is at end? */
-                if (*sp == '\0' or *(sp +1) == '\0')
-                    break;
-            } else {
-                ++len;
-            }
-        }
-
-        /* make saver */
-        if (*sp == '\0')
-          break;
-    } /* end for */
-
-    /* country */
-    if (C != NULL) {
-        oid[2] = X520_COUNTRY;
-        if ((ret = x509write_add_name(node, oid, 3, C, C_len,
-                        ASN1_PRINTABLE_STRING)) != 0)
-            return ret;
-    }
-
-    /* state */
-    if (ST != NULL) {
-        oid[2] = X520_STATE;
-        if ((ret = x509write_add_name(node, oid, 3, ST, ST_len,
-                        ASN1_PRINTABLE_STRING)) != 0)
-            return ret;
-    }
-
-    /* locality */
-    if (L != NULL) {
-        oid[2] = X520_LOCALITY;
-        if ((ret = x509write_add_name(node, oid, 3, L, L_len,
-                        ASN1_PRINTABLE_STRING)) != 0)
-            return ret;
-    }
-
-    /* organization */
-    if (O != NULL) {
-        oid[2] = X520_ORGANIZATION;
-        if ((ret = x509write_add_name(node, oid, 3, O, O_len,
-                        ASN1_PRINTABLE_STRING)) != 0)
-            return ret;
-    }
-
-    /* organisation unit */
-    if (OU != NULL) {
-        oid[2] = X520_ORG_UNIT;
-        if ((ret = x509write_add_name(node, oid, 3, OU, OU_len,
-                        ASN1_PRINTABLE_STRING)) != 0)
-            return ret;
-    }
-
-    /* common name */
-    if (CN != NULL) {
-        oid[2] = X520_COMMON_NAME;
-        if ((ret = x509write_add_name(node, oid, 3, CN, CN_len,
-                        ASN1_PRINTABLE_STRING)) != 0)
-            return ret;
-    }
-
-    /* email */
-    if (R != NULL) {
-        if ((ret = x509write_add_name(node, (unsigned char*)OID_PKCS9_EMAIL,
-        		9, R, R_len, ASN1_IA5_STRING)) != 0)
-            return ret;
-    }
-
-    if ((asn1_append_tag(node, ASN1_CONSTRUCTED | ASN1_SEQUENCE)) != 0)
-        return ret;
-
-    return 0;
-}
-
-/*
- * Copy raw data from orginal ca to node
- */
-static int x509write_copy_from_raw(x509_node *node, x509_buf *raw)
-{
-    if (x509write_realloc_node(node, raw->len) != 0)
-        return 1;
-
-    memcpy(node->p, raw->p, (size_t)raw->len);
-    if ((node->p += raw->len -1) != node->end)
-        return POLARSSL_ERR_X509_POINT_ERROR;
-
-    return 0;
-}
-
-/*
- * Add the issuer
- */
-
-int x509write_add_issuer(x509_raw *crt, unsigned char *issuer)
-{
-    return x509write_parse_names(&crt->issuer, issuer);
-}
-
-/*
- * Add the subject
- */
-int x509write_add_subject(x509_raw *crt, unsigned char *subject)
-{
-    return x509write_parse_names(&crt->subject, subject);
-}
-
-/*
- * Copy issuer line from another cert to issuer
- */
-int x509write_copy_issuer(x509_raw *crt, x509_cert *from_crt)
-{
-    return x509write_copy_from_raw(&crt->issuer, &from_crt->issuer_raw);
-}
-
-/*
- * Copy subject line from another cert
- */
-int x509write_copy_subject(x509_raw *crt, x509_cert *from_crt)
-{
-    return x509write_copy_from_raw(&crt->subject, &from_crt->subject_raw);
-}
-
-/*
- * Copy subject line form antoher cert into issuer
- */
-int x509write_copy_issuer_form_subject(x509_raw *crt,
-        x509_cert *from_crt)
-{
-    return x509write_copy_from_raw(&crt->issuer, &from_crt->subject_raw);
-}
-
-/*
- * Copy issuer line from another cert into subject
- */
-int x509write_copy_subject_from_issuer(x509_raw *crt,
-        x509_cert * from_crt)
-{
-    return x509write_copy_from_raw(&crt->subject, &from_crt->issuer_raw);
-}
-
-/*
- *  Validity ::= SEQUENCE {
- *       notBefore      Time,
- *       notAfter       Time }
- *
- *  Time ::= CHOICE {
- *       utcTime        UTCTime,
- *       generalTime    GeneralizedTime }
- */
-/* TODO: No handle GeneralizedTime! */
-int x509write_add_validity(x509_raw *chain, unsigned char *befor,
-        unsigned char *after)
-{
-    int ret;
-
-    x509_node *node = &chain->validity;
-
-    /* notBefore */
-    if ((ret = asn1_add_date_utc(befor, node)) != 0)
-        return ret;
-
-    /* notAfter */
-    if ((ret = asn1_add_date_utc(after, node)) != 0)
-        return ret;
-
-    if ((ret = asn1_append_tag(node, ASN1_CONSTRUCTED | ASN1_SEQUENCE)) != 0)
-        return ret;
-
-    return 0;
-}
-
-/*
- * make hash from tbs and sign that with private key
- */
-static int x509write_make_sign(x509_raw *chain, rsa_context *privkey)
-{
-    int ret;
-    unsigned char hash[20], *sign;
-    size_t sign_len = (size_t) mpi_size(&privkey->N);
-
-    /* make hash */
-    sha1(chain->tbs.data, chain->tbs.len, hash);
-
-    /* create sign */
-    sign = (unsigned char *) malloc(sign_len);
-    if (sign == NULL)
-        return 1;
-
-    if ((ret = rsa_pkcs1_sign(privkey, RSA_PRIVATE, RSA_SHA1, 20, hash,
-                    sign)) != 0)
-        return ret;
-
-    if ((ret = asn1_add_obj(sign, sign_len, ASN1_BIT_STRING,
-                    &chain->sign)) != 0)
-        return ret;
-
-    /*
-     *  AlgorithmIdentifier  ::=  SEQUENCE  {
-     *       algorithm               OBJECT IDENTIFIER,
-     *       parameters              ANY DEFINED BY algorithm OPTIONAL  }
-     */
-    return asn1_add_oid(&chain->signalg, (unsigned char*)OID_PKCS1_RSA_SHA, 9,
-                  ASN1_CONSTRUCTED | ASN1_SEQUENCE, ASN1_NULL,
-                  (unsigned char*)"", 0);
-}
-
-/*
- * Create a random serial
- */
-static int get_random_serial(void)
-{
-    int random = 0;
-    FILE *fd;
-
-    fd = fopen("/dev/urandom", "r");
-
-    if (fd) {
-	if (fread(&random, 1, sizeof(random), fd) != sizeof(random))
-            random = 0;
-
-        fclose(fd);
-    }
-
-    return random;
-}
-
-/*
- * Create a self signed certificate
- */
-int x509write_create_sign(x509_raw *chain, rsa_context *privkey)
-{
-    int ret, serial;
-
-    /*
-     *  Version  ::=  INTEGER  {  v1(0), v2(1), v3(2)  }
-     */
-    if ((ret = asn1_add_int(2, &chain->version)) != 0)
-        return ret;
-
-    if ((ret = asn1_append_tag(&chain->version, ASN1_CONTEXT_SPECIFIC |
-                    ASN1_CONSTRUCTED)) != 0)
-        return ret;
-
-
-    /*
-     *  CertificateSerialNumber  ::=  INTEGER
-     */
-    serial = get_random_serial();
-
-    if (serial == 0)
-        return 1;
-
-    if ((ret = asn1_add_int(serial, &chain->serial)) != 0)
-        return ret;
-
-    /*
-     *  AlgorithmIdentifier  ::=  SEQUENCE  {
-     *       algorithm               OBJECT IDENTIFIER,
-     *       parameters              ANY DEFINED BY algorithm OPTIONAL  }
-     */
-    if ((ret = asn1_add_oid(&chain->tbs_signalg,
-				(unsigned char*)OID_PKCS1_RSA_SHA, 9, ASN1_CONSTRUCTED |
-				ASN1_SEQUENCE, ASN1_NULL, (unsigned char*)"", 0)) != 0)
-        return ret;
-
-   /*
-    *  Create the tbs
-    */
-    if ((ret = asn1_append_nodes(&chain->tbs, ASN1_CONSTRUCTED |
-                    ASN1_SEQUENCE, 7, &chain->version, &chain->serial,
-                    &chain->tbs_signalg, &chain->issuer, &chain->validity,
-                    &chain->subject, &chain->subpubkey)) != 0)
-        return ret;
-
-    /* make signing */
-    if ((ret = x509write_make_sign(chain, privkey)) != 0)
-        return ret;
-
-    /* finishing */
-    if ((ret = asn1_append_nodes(&chain->raw, ASN1_CONSTRUCTED |
-                    ASN1_SEQUENCE, 3, &chain->tbs, &chain->signalg,
-                    &chain->sign)) != 0)
-        return ret;
-
-    return 0;
-}
-
-int x509write_create_selfsign(x509_raw *chain, rsa_context *privkey)
-{
-    /*
-     * On self signed certificate are subject and issuer the same
-     */
-    x509write_free_node(&chain->issuer);
-    chain->issuer = chain->subject;
-    return x509write_create_sign(chain, privkey);
-}
-
-/*
- * CertificationRequestInfo ::= SEQUENCE                    {
- *    version                       Version,
- *    subject                       Name,
- *    subjectPublicKeyInfo          SubjectPublicKeyInfo,
- *    attributes                    [0] IMPLICIT Attributes }
- *
- * CertificationRequest ::=   SEQUENCE                      {
- *    certificationRequestInfo  CertificationRequestInfo,
- *    signatureAlgorithm        SignatureAlgorithmIdentifier,
- *    signature                 Signature                   }
- *
- * It use chain.serail for attributes!
- *
- */
-int x509write_create_csr(x509_raw *chain, rsa_context *privkey)
-{
-    int ret;
-
-    /* version ::= INTEGER */
-    if ((ret = asn1_add_int(0, &chain->version)) != 0)
-        return ret;
-
-    /* write attributes */
-    if ((ret = asn1_add_obj((unsigned char*)"", 0, ASN1_CONTEXT_SPECIFIC |
-                    ASN1_CONSTRUCTED, &chain->serial)) != 0)
-        return ret;
-
-    /* create CertificationRequestInfo */
-    if ((ret = asn1_append_nodes(&chain->tbs, ASN1_CONSTRUCTED |
-                    ASN1_SEQUENCE, 4, &chain->version, &chain->subject,
-                    &chain->subpubkey, &chain->serial)) != 0)
-        return ret;
-
-    /* make signing */
-    if ((ret = x509write_make_sign(chain, privkey)) != 0)
-        return ret;
-
-    /* finish */
-    if ((ret = asn1_append_nodes(&chain->raw, ASN1_CONSTRUCTED | ASN1_SEQUENCE,
-                    3, &chain->tbs, &chain->signalg, &chain->sign)) != 0)
-        return ret;
-
-    return ret;
-}
-
-/*
- * Free memory
- */
-void x509write_free_raw(x509_raw *chain)
-{
-    x509write_free_node(&chain->raw);
-    x509write_free_node(&chain->tbs);
-    x509write_free_node(&chain->version);
-    x509write_free_node(&chain->serial);
-    x509write_free_node(&chain->tbs_signalg);
-    x509write_free_node(&chain->issuer);
-    x509write_free_node(&chain->validity);
-    if (chain->subject.data != chain->issuer.data)
-        x509write_free_node(&chain->subject);
-    x509write_free_node(&chain->subpubkey);
-    x509write_free_node(&chain->signalg);
-    x509write_free_node(&chain->sign);
-}
-
-void x509write_init_raw(x509_raw *chain)
-{
-    memset((void *) chain, 0, sizeof(x509_raw));
-}
-