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/* $Id$ */
#include <stdio.h>
#include <unistd.h>
#include <openssl/bio.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/safestack.h>
static X509 *read_cert(const char *filename, int format, int verbose)
{
X509 *x = NULL;
BIO *b;
if ((b = BIO_new_file(filename, "r")) == NULL)
goto done;
switch (format) {
case 'p':
x = PEM_read_bio_X509_AUX(b, NULL, NULL, NULL);
break;
case 'd':
x = d2i_X509_bio(b, NULL);
break;
}
if (verbose && x != NULL) {
X509_print_fp(stdout, x);
printf("\n");
}
if (x->rfc3779_addr == NULL)
x->rfc3779_addr = X509_get_ext_d2i(x, NID_sbgp_ipAddrBlock,
NULL, NULL);
if (x->rfc3779_asid == NULL)
x->rfc3779_asid = X509_get_ext_d2i(x, NID_sbgp_autonomousSysNum,
NULL, NULL);
done:
BIO_free(b);
return x;
}
static void *parse_resource_set(int nid, char *text, int verbose)
{
X509_EXTENSION *ext;
void *result;
if ((ext = X509V3_EXT_conf_nid(NULL, NULL, nid, text)) == NULL)
return NULL;
if (verbose) {
printf("Parsed resource set:\n");
X509V3_EXT_print_fp(stdout, ext, 0, 3);
printf("\n");
}
result = X509V3_EXT_d2i(ext);
X509_EXTENSION_free(ext);
return result;
}
#define lose(_msg_) \
do { \
if (_msg_) \
fprintf(stderr, "%s: %s\n", argv[0], _msg_); \
ret = 1; \
goto done; \
} while(0)
int main(int argc, char *argv[])
{
STACK_OF(X509) *chain = NULL;
ASIdentifiers *asid = NULL;
IPAddrBlocks *addr = NULL;
int c, ret = 0, verbose = 0;
X509 *x;
OpenSSL_add_all_algorithms();
ERR_load_crypto_strings();
if ((chain = sk_X509_new_null()) == NULL)
lose("Couldn't allocate X509 stack");
while ((c = getopt(argc, argv, "p:d:a:i:v")) > 0) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'p':
case 'd':
if ((x = read_cert(optarg, c, verbose)) == NULL)
lose("Couldn't read certificate");
sk_X509_push(chain, x);
break;
case 'a':
if (asid != NULL)
lose("Can't specify more than one ASIdentifier");
if ((asid = parse_resource_set(NID_sbgp_autonomousSysNum, optarg, verbose)) == NULL)
lose("Couldn't read ASIdentifier");
break;
case 'i':
if (addr != NULL)
lose("Can't specify more than one IPAddrBlock");
if ((addr = parse_resource_set(NID_sbgp_ipAddrBlock, optarg, verbose)) == NULL)
lose("Couldn't read IPAddrBlock");
break;
default:
fprintf(stderr, "usage: %s"
" [-i IPAddrBlock] [-a ASIdentifier]"
" [-p PEM-certfile] [-d DER-certfile]\n", argv[0]);
ret = 1;
goto done;
}
}
printf("Checking ASIdentifier coverage...");
if (v3_asid_validate_resource_set(chain, asid))
printf("covered\n");
else
printf("NOT covered\n");
printf("Checking IPAddrBlock coverage...");
if (v3_addr_validate_resource_set(chain, addr))
printf("covered\n");
else
printf("NOT covered\n");
done:
sk_X509_pop_free(chain, X509_free);
EVP_cleanup();
ERR_free_strings();
return ret;
}
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