static char *strip_spaces(char *name);
static int sk_strcmp(const char * const *a, const char * const *b);
-static STACK_OF(STRING) *get_email(X509_NAME *name, GENERAL_NAMES *gens);
-static void str_free(STRING str);
-static int append_ia5(STACK_OF(STRING) **sk, ASN1_IA5STRING *email);
+static STACK_OF(OPENSSL_STRING) *get_email(X509_NAME *name, GENERAL_NAMES *gens);
+static void str_free(OPENSSL_STRING str);
+static int append_ia5(STACK_OF(OPENSSL_STRING) **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);
CONF_VALUE *vtmp = NULL;
char *tname = NULL, *tvalue = NULL;
if(name && !(tname = BUF_strdup(name))) goto err;
- if(value && !(tvalue = BUF_strdup(value))) goto err;;
+ if(value && !(tvalue = BUF_strdup(value))) goto err;
if(!(vtmp = (CONF_VALUE *)OPENSSL_malloc(sizeof(CONF_VALUE)))) goto err;
if(!*extlist && !(*extlist = sk_CONF_VALUE_new_null())) goto err;
vtmp->section = NULL;
return strcmp(*a, *b);
}
-STACK_OF(STRING) *X509_get1_email(X509 *x)
+STACK_OF(OPENSSL_STRING) *X509_get1_email(X509 *x)
{
GENERAL_NAMES *gens;
- STACK_OF(STRING) *ret;
+ STACK_OF(OPENSSL_STRING) *ret;
gens = X509_get_ext_d2i(x, NID_subject_alt_name, NULL, NULL);
ret = get_email(X509_get_subject_name(x), gens);
return ret;
}
-STACK_OF(STRING) *X509_get1_ocsp(X509 *x)
+STACK_OF(OPENSSL_STRING) *X509_get1_ocsp(X509 *x)
{
AUTHORITY_INFO_ACCESS *info;
- STACK_OF(STRING) *ret = NULL;
+ STACK_OF(OPENSSL_STRING) *ret = NULL;
int i;
info = X509_get_ext_d2i(x, NID_info_access, NULL, NULL);
return ret;
}
-STACK_OF(STRING) *X509_REQ_get1_email(X509_REQ *x)
+STACK_OF(OPENSSL_STRING) *X509_REQ_get1_email(X509_REQ *x)
{
GENERAL_NAMES *gens;
STACK_OF(X509_EXTENSION) *exts;
- STACK_OF(STRING) *ret;
+ STACK_OF(OPENSSL_STRING) *ret;
exts = X509_REQ_get_extensions(x);
gens = X509V3_get_d2i(exts, NID_subject_alt_name, NULL, NULL);
}
-static STACK_OF(STRING) *get_email(X509_NAME *name, GENERAL_NAMES *gens)
+static STACK_OF(OPENSSL_STRING) *get_email(X509_NAME *name, GENERAL_NAMES *gens)
{
- STACK_OF(STRING) *ret = NULL;
+ STACK_OF(OPENSSL_STRING) *ret = NULL;
X509_NAME_ENTRY *ne;
ASN1_IA5STRING *email;
GENERAL_NAME *gen;
return ret;
}
-static void str_free(STRING str)
+static void str_free(OPENSSL_STRING str)
{
OPENSSL_free(str);
}
-static int append_ia5(STACK_OF(STRING) **sk, ASN1_IA5STRING *email)
+static int append_ia5(STACK_OF(OPENSSL_STRING) **sk, ASN1_IA5STRING *email)
{
char *emtmp;
/* First some sanity checks */
if(email->type != V_ASN1_IA5STRING) return 1;
if(!email->data || !email->length) return 1;
- if(!*sk) *sk = sk_STRING_new(sk_strcmp);
+ if(!*sk) *sk = sk_OPENSSL_STRING_new(sk_strcmp);
if(!*sk) return 0;
/* Don't add duplicates */
- if(sk_STRING_find(*sk, (char *)email->data) != -1) return 1;
+ if(sk_OPENSSL_STRING_find(*sk, (char *)email->data) != -1) return 1;
emtmp = BUF_strdup((char *)email->data);
- if(!emtmp || !sk_STRING_push(*sk, emtmp)) {
+ if(!emtmp || !sk_OPENSSL_STRING_push(*sk, emtmp)) {
X509_email_free(*sk);
*sk = NULL;
return 0;
return 1;
}
-void X509_email_free(STACK_OF(STRING) *sk)
+void X509_email_free(STACK_OF(OPENSSL_STRING) *sk)
{
- sk_STRING_pop_free(sk, str_free);
+ sk_OPENSSL_STRING_pop_free(sk, str_free);
}
+typedef int (*equal_fn)(const unsigned char *pattern, size_t pattern_len,
+ const unsigned char *subject, size_t subject_len);
+
+/* Compare while ASCII ignoring case. */
+static int equal_nocase(const unsigned char *pattern, size_t pattern_len,
+ const unsigned char *subject, size_t subject_len)
+ {
+ if (pattern_len != subject_len)
+ return 0;
+ while (pattern_len)
+ {
+ unsigned char l = *pattern;
+ unsigned char r = *subject;
+ /* The pattern must not contain NUL characters. */
+ if (l == 0)
+ return 0;
+ if (l != r)
+ {
+ if ('A' <= l && l <= 'Z')
+ l = (l - 'A') + 'a';
+ if ('A' <= r && r <= 'Z')
+ r = (r - 'A') + 'a';
+ if (l != r)
+ return 0;
+ }
+ ++pattern;
+ ++subject;
+ --pattern_len;
+ }
+ return 1;
+ }
+
+/* Compare using memcmp. */
+static int equal_case(const unsigned char *pattern, size_t pattern_len,
+ const unsigned char *subject, size_t subject_len)
+{
+ /* The pattern must not contain NUL characters. */
+ if (memchr(pattern, '\0', pattern_len) != NULL)
+ return 0;
+ if (pattern_len != subject_len)
+ return 0;
+ return !memcmp(pattern, subject, pattern_len);
+}
+
+/* RFC 5280, section 7.5, requires that only the domain is compared in
+ a case-insensitive manner. */
+static int equal_email(const unsigned char *a, size_t a_len,
+ const unsigned char *b, size_t b_len)
+ {
+ size_t i = a_len;
+ if (a_len != b_len)
+ return 0;
+ /* We search backwards for the '@' character, so that we do
+ not have to deal with quoted local-parts. The domain part
+ is compared in a case-insensitive manner. */
+ while (i > 0)
+ {
+ --i;
+ if (a[i] == '@' || b[i] == '@')
+ {
+ if (!equal_nocase(a + i, a_len - i,
+ b + i, a_len - i))
+ return 0;
+ break;
+ }
+ }
+ if (i == 0)
+ i = a_len;
+ return equal_case(a, i, b, i);
+ }
+
+/* Compare the prefix and suffix with the subject, and check that the
+ characters in-between are valid. */
+static int wildcard_match(const unsigned char *prefix, size_t prefix_len,
+ const unsigned char *suffix, size_t suffix_len,
+ const unsigned char *subject, size_t subject_len)
+ {
+ const unsigned char *wildcard_start;
+ const unsigned char *wildcard_end;
+ const unsigned char *p;
+ if (subject_len < prefix_len + suffix_len)
+ return 0;
+ if (!equal_nocase(prefix, prefix_len, subject, prefix_len))
+ return 0;
+ wildcard_start = subject + prefix_len;
+ wildcard_end = subject + (subject_len - suffix_len);
+ if (!equal_nocase(wildcard_end, suffix_len, suffix, suffix_len))
+ return 0;
+ /* The wildcard must match at least one character. */
+ if (wildcard_start == wildcard_end)
+ return 0;
+ /* Check that the part matched by the wildcard contains only
+ permitted characters and only matches a single label. */
+ for (p = wildcard_start; p != wildcard_end; ++p)
+ if (!(('0' <= *p && *p <= '9') ||
+ ('A' <= *p && *p <= 'Z') ||
+ ('a' <= *p && *p <= 'z') ||
+ *p == '-'))
+ return 0;
+ return 1;
+ }
+
+/* Checks if the memory region consistens of [0-9A-Za-z.-]. */
+static int valid_domain_characters(const unsigned char *p, size_t len)
+ {
+ while (len)
+ {
+ if (!(('0' <= *p && *p <= '9') ||
+ ('A' <= *p && *p <= 'Z') ||
+ ('a' <= *p && *p <= 'z') ||
+ *p == '-' || *p == '.'))
+ return 0;
+ ++p;
+ --len;
+ }
+ return 1;
+ }
+
+/* Find the '*' in a wildcard pattern. If no such character is found
+ or the pattern is otherwise invalid, returns NULL. */
+static const unsigned char *wildcard_find_star(const unsigned char *pattern,
+ size_t pattern_len)
+ {
+ const unsigned char *star = memchr(pattern, '*', pattern_len);
+ size_t dot_count = 0;
+ const unsigned char *suffix_start;
+ size_t suffix_length;
+ if (star == NULL)
+ return NULL;
+ suffix_start = star + 1;
+ suffix_length = (pattern + pattern_len) - (star + 1);
+ if (!(valid_domain_characters(pattern, star - pattern) &&
+ valid_domain_characters(suffix_start, suffix_length)))
+ return NULL;
+ /* Check that the suffix matches at least two labels. */
+ while (suffix_length)
+ {
+ if (*suffix_start == '.')
+ ++dot_count;
+ ++suffix_start;
+ --suffix_length;
+ }
+ if (dot_count < 2)
+ return NULL;
+ return star;
+ }
+
+/* Compare using wildcards. */
+static int equal_wildcard(const unsigned char *pattern, size_t pattern_len,
+ const unsigned char *subject, size_t subject_len)
+ {
+ const unsigned char *star = wildcard_find_star(pattern, pattern_len);
+ if (star == NULL)
+ return equal_nocase(pattern, pattern_len,
+ subject, subject_len);
+ return wildcard_match(pattern, star - pattern,
+ star + 1, (pattern + pattern_len) - star - 1,
+ subject, subject_len);
+ }
+
+/* Compare an ASN1_STRING to a supplied string. If they match
+ * return 1. If cmp_type > 0 only compare if string matches the
+ * type, otherwise convert it to UTF8.
+ */
+
+static int do_check_string(ASN1_STRING *a, int cmp_type, equal_fn equal,
+ const unsigned char *b, size_t blen)
+ {
+ if (!a->data || !a->length)
+ return 0;
+ if (cmp_type > 0)
+ {
+ if (cmp_type != a->type)
+ return 0;
+ if (cmp_type == V_ASN1_IA5STRING)
+ return equal(a->data, a->length, b, blen);
+ if (a->length == (int)blen && !memcmp(a->data, b, blen))
+ return 1;
+ else
+ return 0;
+ }
+ else
+ {
+ int astrlen, rv;
+ unsigned char *astr;
+ astrlen = ASN1_STRING_to_UTF8(&astr, a);
+ if (astrlen < 0)
+ return -1;
+ rv = equal(astr, astrlen, b, blen);
+ OPENSSL_free(astr);
+ return rv;
+ }
+ }
+
+static int do_x509_check(X509 *x, const unsigned char *chk, size_t chklen,
+ unsigned int flags, int check_type)
+ {
+ GENERAL_NAMES *gens = NULL;
+ X509_NAME *name = NULL;
+ int i;
+ int cnid;
+ int alt_type;
+ equal_fn equal;
+ if (check_type == GEN_EMAIL)
+ {
+ cnid = NID_pkcs9_emailAddress;
+ alt_type = V_ASN1_IA5STRING;
+ equal = equal_email;
+ }
+ else if (check_type == GEN_DNS)
+ {
+ cnid = NID_commonName;
+ alt_type = V_ASN1_IA5STRING;
+ if (flags & X509_CHECK_FLAG_NO_WILDCARDS)
+ equal = equal_nocase;
+ else
+ equal = equal_wildcard;
+ }
+ else
+ {
+ cnid = 0;
+ alt_type = V_ASN1_OCTET_STRING;
+ equal = equal_case;
+ }
+
+ if (chklen == 0)
+ chklen = strlen((const char *)chk);
+
+ gens = X509_get_ext_d2i(x, NID_subject_alt_name, NULL, NULL);
+ if (gens)
+ {
+ int rv = 0;
+ for (i = 0; i < sk_GENERAL_NAME_num(gens); i++)
+ {
+ GENERAL_NAME *gen;
+ ASN1_STRING *cstr;
+ gen = sk_GENERAL_NAME_value(gens, i);
+ if(gen->type != check_type)
+ continue;
+ if (check_type == GEN_EMAIL)
+ cstr = gen->d.rfc822Name;
+ else if (check_type == GEN_DNS)
+ cstr = gen->d.dNSName;
+ else
+ cstr = gen->d.iPAddress;
+ if (do_check_string(cstr, alt_type, equal, chk, chklen))
+ {
+ rv = 1;
+ break;
+ }
+ }
+ GENERAL_NAMES_free(gens);
+ if (rv)
+ return 1;
+ if (!(flags & X509_CHECK_FLAG_ALWAYS_CHECK_SUBJECT) || !cnid)
+ return 0;
+ }
+ i = -1;
+ name = X509_get_subject_name(x);
+ while((i = X509_NAME_get_index_by_NID(name, cnid, i)) >= 0)
+ {
+ X509_NAME_ENTRY *ne;
+ ASN1_STRING *str;
+ ne = X509_NAME_get_entry(name, i);
+ str = X509_NAME_ENTRY_get_data(ne);
+ if (do_check_string(str, -1, equal, chk, chklen))
+ return 1;
+ }
+ return 0;
+ }
+
+int X509_check_host(X509 *x, const unsigned char *chk, size_t chklen,
+ unsigned int flags)
+ {
+ return do_x509_check(x, chk, chklen, flags, GEN_DNS);
+ }
+
+int X509_check_email(X509 *x, const unsigned char *chk, size_t chklen,
+ unsigned int flags)
+ {
+ return do_x509_check(x, chk, chklen, flags, GEN_EMAIL);
+ }
+
+int X509_check_ip(X509 *x, const unsigned char *chk, size_t chklen,
+ unsigned int flags)
+ {
+ return do_x509_check(x, chk, chklen, flags, GEN_IPADD);
+ }
+
+int X509_check_ip_asc(X509 *x, const char *ipasc, unsigned int flags)
+ {
+ unsigned char ipout[16];
+ int iplen;
+ iplen = a2i_ipadd(ipout, ipasc);
+ if (iplen == 0)
+ return -2;
+ return do_x509_check(x, ipout, (size_t)iplen, flags, GEN_IPADD);
+ }
+
/* Convert IP addresses both IPv4 and IPv6 into an
* OCTET STRING compatible with RFC3280.
*/
projects / openssl.git / blobdiff