* Expand the bitstring form of an address into a raw byte array.
* At the moment this is coded for simplicity, not speed.
*/
-static void addr_expand(unsigned char *addr,
+static int addr_expand(unsigned char *addr,
const ASN1_BIT_STRING *bs,
const int length,
const unsigned char fill)
{
- OPENSSL_assert(bs->length >= 0 && bs->length <= length);
+ if (bs->length < 0 || bs->length > length)
+ return 0;
if (bs->length > 0) {
memcpy(addr, bs->data, bs->length);
if ((bs->flags & 7) != 0) {
}
}
memset(addr + bs->length, fill, length - bs->length);
+ return 1;
}
/*
return 0;
switch (afi) {
case IANA_AFI_IPV4:
- if (bs->length > 4)
+ if (!addr_expand(addr, bs, 4, fill))
return 0;
- addr_expand(addr, bs, 4, fill);
BIO_printf(out, "%d.%d.%d.%d", addr[0], addr[1], addr[2], addr[3]);
break;
case IANA_AFI_IPV6:
- if (bs->length > 16)
+ if (!addr_expand(addr, bs, 16, fill))
return 0;
- addr_expand(addr, bs, 16, fill);
for (n = 16; n > 1 && addr[n-1] == 0x00 && addr[n-2] == 0x00; n -= 2)
;
for (i = 0; i < n; i += 2)
/*
* Sort comparison function for a sequence of IPAddressOrRange
* elements.
+ *
+ * There's no sane answer we can give if addr_expand() fails, and an
+ * assertion failure on externally supplied data is seriously uncool,
+ * so we just arbitrarily declare that if given invalid inputs this
+ * function returns -1. If this messes up your preferred sort order
+ * for garbage input, tough noogies.
*/
static int IPAddressOrRange_cmp(const IPAddressOrRange *a,
const IPAddressOrRange *b,
switch (a->type) {
case IPAddressOrRange_addressPrefix:
- addr_expand(addr_a, a->u.addressPrefix, length, 0x00);
+ if (!addr_expand(addr_a, a->u.addressPrefix, length, 0x00))
+ return -1;
prefixlen_a = addr_prefixlen(a->u.addressPrefix);
break;
case IPAddressOrRange_addressRange:
- addr_expand(addr_a, a->u.addressRange->min, length, 0x00);
+ if (!addr_expand(addr_a, a->u.addressRange->min, length, 0x00))
+ return -1;
prefixlen_a = length * 8;
break;
}
switch (b->type) {
case IPAddressOrRange_addressPrefix:
- addr_expand(addr_b, b->u.addressPrefix, length, 0x00);
+ if (!addr_expand(addr_b, b->u.addressPrefix, length, 0x00))
+ return -1;
prefixlen_b = addr_prefixlen(b->u.addressPrefix);
break;
case IPAddressOrRange_addressRange:
- addr_expand(addr_b, b->u.addressRange->min, length, 0x00);
+ if (!addr_expand(addr_b, b->u.addressRange->min, length, 0x00))
+ return -1;
prefixlen_b = length * 8;
break;
}
return NULL;
switch (afi) {
case IANA_AFI_IPV4:
- sk_IPAddressOrRange_set_cmp_func(aors, v4IPAddressOrRange_cmp);
+ (void) sk_IPAddressOrRange_set_cmp_func(aors, v4IPAddressOrRange_cmp);
break;
case IANA_AFI_IPV6:
- sk_IPAddressOrRange_set_cmp_func(aors, v6IPAddressOrRange_cmp);
+ (void) sk_IPAddressOrRange_set_cmp_func(aors, v6IPAddressOrRange_cmp);
break;
}
f->ipAddressChoice->type = IPAddressChoice_addressesOrRanges;
/*
* Extract min and max values from an IPAddressOrRange.
*/
-static void extract_min_max(IPAddressOrRange *aor,
+static int extract_min_max(IPAddressOrRange *aor,
unsigned char *min,
unsigned char *max,
int length)
{
- OPENSSL_assert(aor != NULL && min != NULL && max != NULL);
+ if (aor == NULL || min == NULL || max == NULL)
+ return 0;
switch (aor->type) {
case IPAddressOrRange_addressPrefix:
- addr_expand(min, aor->u.addressPrefix, length, 0x00);
- addr_expand(max, aor->u.addressPrefix, length, 0xFF);
- return;
+ return (addr_expand(min, aor->u.addressPrefix, length, 0x00) &&
+ addr_expand(max, aor->u.addressPrefix, length, 0xFF));
case IPAddressOrRange_addressRange:
- addr_expand(min, aor->u.addressRange->min, length, 0x00);
- addr_expand(max, aor->u.addressRange->max, length, 0xFF);
- return;
+ return (addr_expand(min, aor->u.addressRange->min, length, 0x00) &&
+ addr_expand(max, aor->u.addressRange->max, length, 0xFF));
}
+ return 0;
}
/*
if (aor == NULL || min == NULL || max == NULL ||
afi_length == 0 || length < afi_length ||
(aor->type != IPAddressOrRange_addressPrefix &&
- aor->type != IPAddressOrRange_addressRange))
+ aor->type != IPAddressOrRange_addressRange) ||
+ !extract_min_max(aor, min, max, afi_length))
return 0;
- extract_min_max(aor, min, max, afi_length);
+
return afi_length;
}
IPAddressOrRange *a = sk_IPAddressOrRange_value(aors, j);
IPAddressOrRange *b = sk_IPAddressOrRange_value(aors, j + 1);
- extract_min_max(a, a_min, a_max, length);
- extract_min_max(b, b_min, b_max, length);
+ if (!extract_min_max(a, a_min, a_max, length) ||
+ !extract_min_max(b, b_min, b_max, length))
+ return 0;
/*
* Punt misordered list, overlapping start, or inverted range.
{
IPAddressOrRange *a = sk_IPAddressOrRange_value(aors, j);
if (a != NULL && a->type == IPAddressOrRange_addressRange) {
- extract_min_max(a, a_min, a_max, length);
+ if (!extract_min_max(a, a_min, a_max, length))
+ return 0;
if (memcmp(a_min, a_max, length) > 0 ||
range_should_be_prefix(a_min, a_max, length) >= 0)
return 0;
unsigned char a_min[ADDR_RAW_BUF_LEN], a_max[ADDR_RAW_BUF_LEN];
unsigned char b_min[ADDR_RAW_BUF_LEN], b_max[ADDR_RAW_BUF_LEN];
- extract_min_max(a, a_min, a_max, length);
- extract_min_max(b, b_min, b_max, length);
+ if (!extract_min_max(a, a_min, a_max, length) ||
+ !extract_min_max(b, b_min, b_max, length))
+ return 0;
/*
* Punt inverted ranges.
IPAddressOrRange *merged;
if (!make_addressRange(&merged, a_min, b_max, length))
return 0;
- sk_IPAddressOrRange_set(aors, i, merged);
- sk_IPAddressOrRange_delete(aors, i + 1);
+ (void) sk_IPAddressOrRange_set(aors, i, merged);
+ (void) sk_IPAddressOrRange_delete(aors, i + 1);
IPAddressOrRange_free(a);
IPAddressOrRange_free(b);
--i;
v3_addr_get_afi(f)))
return 0;
}
- sk_IPAddressFamily_set_cmp_func(addr, IPAddressFamily_cmp);
+ (void) sk_IPAddressFamily_set_cmp_func(addr, IPAddressFamily_cmp);
sk_IPAddressFamily_sort(addr);
OPENSSL_assert(v3_addr_is_canonical(addr));
return 1;
p = 0;
for (c = 0; c < sk_IPAddressOrRange_num(child); c++) {
- extract_min_max(sk_IPAddressOrRange_value(child, c),
- c_min, c_max, length);
+ if (!extract_min_max(sk_IPAddressOrRange_value(child, c),
+ c_min, c_max, length))
+ return -1;
for (;; p++) {
if (p >= sk_IPAddressOrRange_num(parent))
return 0;
- extract_min_max(sk_IPAddressOrRange_value(parent, p),
- p_min, p_max, length);
+ if (!extract_min_max(sk_IPAddressOrRange_value(parent, p),
+ p_min, p_max, length))
+ return 0;
if (memcmp(p_max, c_max, length) < 0)
continue;
if (memcmp(p_min, c_min, length) > 0)
return 1;
if (b == NULL || v3_addr_inherits(a) || v3_addr_inherits(b))
return 0;
- sk_IPAddressFamily_set_cmp_func(b, IPAddressFamily_cmp);
+ (void) sk_IPAddressFamily_set_cmp_func(b, IPAddressFamily_cmp);
for (i = 0; i < sk_IPAddressFamily_num(a); i++) {
IPAddressFamily *fa = sk_IPAddressFamily_value(a, i);
int j = sk_IPAddressFamily_find(b, fa);
}
if (!v3_addr_is_canonical(ext))
validation_err(X509_V_ERR_INVALID_EXTENSION);
- sk_IPAddressFamily_set_cmp_func(ext, IPAddressFamily_cmp);
+ (void) sk_IPAddressFamily_set_cmp_func(ext, IPAddressFamily_cmp);
if ((child = sk_IPAddressFamily_dup(ext)) == NULL) {
X509V3err(X509V3_F_V3_ADDR_VALIDATE_PATH_INTERNAL, ERR_R_MALLOC_FAILURE);
ret = 0;
}
continue;
}
- sk_IPAddressFamily_set_cmp_func(x->rfc3779_addr, IPAddressFamily_cmp);
+ (void) sk_IPAddressFamily_set_cmp_func(x->rfc3779_addr, IPAddressFamily_cmp);
for (j = 0; j < sk_IPAddressFamily_num(child); j++) {
IPAddressFamily *fc = sk_IPAddressFamily_value(child, j);
int k = sk_IPAddressFamily_find(x->rfc3779_addr, fc);
projects / openssl.git / blobdiff