1 files changed, 338 insertions, 5 deletions

diff --git a/src/lib/libcrypto/x509v3/v3_utl.c b/src/lib/libcrypto/x509v3/v3_utl.c
index f23a8d29a0..57be441399 100644
--- a/src/lib/libcrypto/x509v3/v3_utl.c
+++ b/src/lib/libcrypto/x509v3/v3_utl.c
@@ -1,9 +1,9 @@
 /* v3_utl.c */
 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 1999.
+ * project.
  */
 /* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1999-2003 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -63,6 +63,7 @@
 #include "cryptlib.h"
 #include <openssl/conf.h>
 #include <openssl/x509v3.h>
+#include <openssl/bn.h>
 
 static char *strip_spaces(char *name);
 static int sk_strcmp(const char * const *a, const char * const *b);
@@ -70,6 +71,11 @@ static STACK *get_email(X509_NAME *name, GENERAL_NAMES *gens);
 static void str_free(void *str);
 static int append_ia5(STACK **sk, ASN1_IA5STRING *email);
 
+static int ipv4_from_asc(unsigned char *v4, const char *in);
+static int ipv6_from_asc(unsigned char *v6, const char *in);
+static int ipv6_cb(const char *elem, int len, void *usr);
+static int ipv6_hex(unsigned char *out, const char *in, int inlen);
+
 /* Add a CONF_VALUE name value pair to stack */
 
 int X509V3_add_value(const char *name, const char *value,
@@ -156,11 +162,11 @@ ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *method, char *value)
         ASN1_INTEGER *aint;
         int isneg, ishex;
         int ret;
-        bn = BN_new();
         if (!value) {
                 X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_INVALID_NULL_VALUE);
                 return 0;
         }
+        bn = BN_new();
         if (value[0] == '-') {
                 value++;
                 isneg = 1;
@@ -174,7 +180,8 @@ ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *method, char *value)
         if (ishex) ret = BN_hex2bn(&bn, value);
         else ret = BN_dec2bn(&bn, value);
 
-        if (!ret) {
+        if (!ret || value[ret]) {
+                BN_free(bn);
                 X509V3err(X509V3_F_S2I_ASN1_INTEGER,X509V3_R_BN_DEC2BN_ERROR);
                 return 0;
         }
@@ -358,7 +365,7 @@ char *hex_to_string(unsigned char *buffer, long len)
         char *tmp, *q;
         unsigned char *p;
         int i;
-        static char hexdig[] = "0123456789ABCDEF";
+        const static char hexdig[] = "0123456789ABCDEF";
         if(!buffer || !len) return NULL;
         if(!(tmp = OPENSSL_malloc(len * 3 + 1))) {
                 X509V3err(X509V3_F_HEX_TO_STRING,ERR_R_MALLOC_FAILURE);
@@ -466,6 +473,30 @@ STACK *X509_get1_email(X509 *x)
         return ret;
 }
 
+STACK *X509_get1_ocsp(X509 *x)
+{
+        AUTHORITY_INFO_ACCESS *info;
+        STACK *ret = NULL;
+        int i;
+        info = X509_get_ext_d2i(x, NID_info_access, NULL, NULL);
+        if (!info)
+                return NULL;
+        for (i = 0; i < sk_ACCESS_DESCRIPTION_num(info); i++)
+                {
+                ACCESS_DESCRIPTION *ad = sk_ACCESS_DESCRIPTION_value(info, i);
+                if (OBJ_obj2nid(ad->method) == NID_ad_OCSP)
+                        {
+                        if (ad->location->type == GEN_URI)
+                                {
+                                if (!append_ia5(&ret, ad->location->d.uniformResourceIdentifier))
+                                        break;
+                                }
+                        }
+                }
+        AUTHORITY_INFO_ACCESS_free(info);
+        return ret;
+}
+
 STACK *X509_REQ_get1_email(X509_REQ *x)
 {
         GENERAL_NAMES *gens;
@@ -533,3 +564,305 @@ void X509_email_free(STACK *sk)
 {
         sk_pop_free(sk, str_free);
 }
+
+/* Convert IP addresses both IPv4 and IPv6 into an 
+ * OCTET STRING compatible with RFC3280.
+ */
+
+ASN1_OCTET_STRING *a2i_IPADDRESS(const char *ipasc)
+        {
+        unsigned char ipout[16];
+        ASN1_OCTET_STRING *ret;
+        int iplen;
+
+        /* If string contains a ':' assume IPv6 */
+
+        iplen = a2i_ipadd(ipout, ipasc);
+
+        if (!iplen)
+                return NULL;
+
+        ret = ASN1_OCTET_STRING_new();
+        if (!ret)
+                return NULL;
+        if (!ASN1_OCTET_STRING_set(ret, ipout, iplen))
+                {
+                ASN1_OCTET_STRING_free(ret);
+                return NULL;
+                }
+        return ret;
+        }
+
+ASN1_OCTET_STRING *a2i_IPADDRESS_NC(const char *ipasc)
+        {
+        ASN1_OCTET_STRING *ret = NULL;
+        unsigned char ipout[32];
+        char *iptmp = NULL, *p;
+        int iplen1, iplen2;
+        p = strchr(ipasc,'/');
+        if (!p)
+                return NULL;
+        iptmp = BUF_strdup(ipasc);
+        if (!iptmp)
+                return NULL;
+        p = iptmp + (p - ipasc);
+        *p++ = 0;
+
+        iplen1 = a2i_ipadd(ipout, iptmp);
+
+        if (!iplen1)
+                goto err;
+
+        iplen2 = a2i_ipadd(ipout + iplen1, p);
+
+        OPENSSL_free(iptmp);
+        iptmp = NULL;
+
+        if (!iplen2 || (iplen1 != iplen2))
+                goto err;
+
+        ret = ASN1_OCTET_STRING_new();
+        if (!ret)
+                goto err;
+        if (!ASN1_OCTET_STRING_set(ret, ipout, iplen1 + iplen2))
+                goto err;
+
+        return ret;
+
+        err:
+        if (iptmp)
+                OPENSSL_free(iptmp);
+        if (ret)
+                ASN1_OCTET_STRING_free(ret);
+        return NULL;
+        }
+        
+
+int a2i_ipadd(unsigned char *ipout, const char *ipasc)
+        {
+        /* If string contains a ':' assume IPv6 */
+
+        if (strchr(ipasc, ':'))
+                {
+                if (!ipv6_from_asc(ipout, ipasc))
+                        return 0;
+                return 16;
+                }
+        else
+                {
+                if (!ipv4_from_asc(ipout, ipasc))
+                        return 0;
+                return 4;
+                }
+        }
+
+static int ipv4_from_asc(unsigned char *v4, const char *in)
+        {
+        int a0, a1, a2, a3;
+        if (sscanf(in, "%d.%d.%d.%d", &a0, &a1, &a2, &a3) != 4)
+                return 0;
+        if ((a0 < 0) || (a0 > 255) || (a1 < 0) || (a1 > 255)
+                || (a2 < 0) || (a2 > 255) || (a3 < 0) || (a3 > 255))
+                return 0;
+        v4[0] = a0;
+        v4[1] = a1;
+        v4[2] = a2;
+        v4[3] = a3;
+        return 1;
+        }
+
+typedef struct {
+                /* Temporary store for IPV6 output */
+                unsigned char tmp[16];
+                /* Total number of bytes in tmp */
+                int total;
+                /* The position of a zero (corresponding to '::') */
+                int zero_pos;
+                /* Number of zeroes */
+                int zero_cnt;
+        } IPV6_STAT;
+
+
+static int ipv6_from_asc(unsigned char *v6, const char *in)
+        {
+        IPV6_STAT v6stat;
+        v6stat.total = 0;
+        v6stat.zero_pos = -1;
+        v6stat.zero_cnt = 0;
+        /* Treat the IPv6 representation as a list of values
+         * separated by ':'. The presence of a '::' will parse
+         * as one, two or three zero length elements.
+         */
+        if (!CONF_parse_list(in, ':', 0, ipv6_cb, &v6stat))
+                return 0;
+
+        /* Now for some sanity checks */
+
+        if (v6stat.zero_pos == -1)
+                {
+                /* If no '::' must have exactly 16 bytes */
+                if (v6stat.total != 16)
+                        return 0;
+                }
+        else 
+                {
+                /* If '::' must have less than 16 bytes */
+                if (v6stat.total == 16)
+                        return 0;
+                /* More than three zeroes is an error */
+                if (v6stat.zero_cnt > 3)
+                        return 0;
+                /* Can only have three zeroes if nothing else present */
+                else if (v6stat.zero_cnt == 3)
+                        {
+                        if (v6stat.total > 0)
+                                return 0;
+                        }
+                /* Can only have two zeroes if at start or end */
+                else if (v6stat.zero_cnt == 2)
+                        {
+                        if ((v6stat.zero_pos != 0)
+                                && (v6stat.zero_pos != v6stat.total))
+                                return 0;
+                        }
+                else 
+                /* Can only have one zero if *not* start or end */
+                        {
+                        if ((v6stat.zero_pos == 0)
+                                || (v6stat.zero_pos == v6stat.total))
+                                return 0;
+                        }
+                }
+
+        /* Format result */
+
+        /* Copy initial part */
+        if (v6stat.zero_pos > 0)
+                memcpy(v6, v6stat.tmp, v6stat.zero_pos);
+        /* Zero middle */
+        if (v6stat.total != 16)
+                memset(v6 + v6stat.zero_pos, 0, 16 - v6stat.total);
+        /* Copy final part */
+        if (v6stat.total != v6stat.zero_pos)
+                memcpy(v6 + v6stat.zero_pos + 16 - v6stat.total,
+                        v6stat.tmp + v6stat.zero_pos,
+                        v6stat.total - v6stat.zero_pos);
+
+        return 1;
+        }
+
+static int ipv6_cb(const char *elem, int len, void *usr)
+        {
+        IPV6_STAT *s = usr;
+        /* Error if 16 bytes written */
+        if (s->total == 16)
+                return 0;
+        if (len == 0)
+                {
+                /* Zero length element, corresponds to '::' */
+                if (s->zero_pos == -1)
+                        s->zero_pos = s->total;
+                /* If we've already got a :: its an error */
+                else if (s->zero_pos != s->total)
+                        return 0;
+                s->zero_cnt++;
+                }
+        else 
+                {
+                /* If more than 4 characters could be final a.b.c.d form */
+                if (len > 4)
+                        {
+                        /* Need at least 4 bytes left */
+                        if (s->total > 12)
+                                return 0;
+                        /* Must be end of string */
+                        if (elem[len])
+                                return 0;
+                        if (!ipv4_from_asc(s->tmp + s->total, elem))
+                                return 0;
+                        s->total += 4;
+                        }
+                else
+                        {
+                        if (!ipv6_hex(s->tmp + s->total, elem, len))
+                                return 0;
+                        s->total += 2;
+                        }
+                }
+        return 1;
+        }
+
+/* Convert a string of up to 4 hex digits into the corresponding
+ * IPv6 form.
+ */
+
+static int ipv6_hex(unsigned char *out, const char *in, int inlen)
+        {
+        unsigned char c;
+        unsigned int num = 0;
+        if (inlen > 4)
+                return 0;
+        while(inlen--)
+                {
+                c = *in++;
+                num <<= 4;
+                if ((c >= '0') && (c <= '9'))
+                        num |= c - '0';
+                else if ((c >= 'A') && (c <= 'F'))
+                        num |= c - 'A' + 10;
+                else if ((c >= 'a') && (c <= 'f'))
+                        num |=  c - 'a' + 10;
+                else
+                        return 0;
+                }
+        out[0] = num >> 8;
+        out[1] = num & 0xff;
+        return 1;
+        }
+
+
+int X509V3_NAME_from_section(X509_NAME *nm, STACK_OF(CONF_VALUE)*dn_sk,
+                                                unsigned long chtype)
+        {
+        CONF_VALUE *v;
+        int i, mval;
+        char *p, *type;
+        if (!nm)
+                return 0;
+
+        for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++)
+                {
+                v=sk_CONF_VALUE_value(dn_sk,i);
+                type=v->name;
+                /* Skip past any leading X. X: X, etc to allow for
+                 * multiple instances 
+                 */
+                for(p = type; *p ; p++) 
+#ifndef CHARSET_EBCDIC
+                        if ((*p == ':') || (*p == ',') || (*p == '.'))
+#else
+                        if ((*p == os_toascii[':']) || (*p == os_toascii[',']) || (*p == os_toascii['.']))
+#endif
+                                {
+                                p++;
+                                if(*p) type = p;
+                                break;
+                                }
+#ifndef CHARSET_EBCDIC
+                if (*type == '+')
+#else
+                if (*type == os_toascii['+'])
+#endif
+                        {
+                        mval = -1;
+                        type++;
+                        }
+                else
+                        mval = 0;
+                if (!X509_NAME_add_entry_by_txt(nm,type, chtype,
+                                (unsigned char *) v->value,-1,-1,mval))
+                                        return 0;
+
+                }
+        return 1;
+        }