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gnutls: Add support for certfp gathering.

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This commit is contained in:
William Pitcock 2010-02-22 11:13:59 -06:00
parent 087a839962
commit 3fe59c99c7
1 changed files with 38 additions and 2 deletions
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40
libratbox/src/gnutls.c
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@ -30,6 +30,7 @@
#ifdef HAVE_GNUTLS
#include <gnutls/gnutls.h>
#include <gnutls/x509.h>
#include <gcrypt.h>
static gnutls_certificate_credentials x509;
@ -144,6 +145,7 @@ rb_ssl_start_accepted(rb_fde_t *new_F, ACCB * cb, void *data, int timeout)
gnutls_credentials_set(*ssl, GNUTLS_CRD_CERTIFICATE, x509);
gnutls_dh_set_prime_bits(*ssl, 1024);
gnutls_transport_set_ptr(*ssl, (gnutls_transport_ptr_t) (long int)new_F->fd);
gnutls_certificate_server_set_request(*ssl, GNUTLS_CERT_REQUEST);
if(do_ssl_handshake(new_F, rb_ssl_tryaccept))
{
struct acceptdata *ad = new_F->accept;
@ -175,6 +177,7 @@ rb_ssl_accept_setup(rb_fde_t *F, rb_fde_t *new_F, struct sockaddr *st, int addrl
gnutls_credentials_set(SSL_P(new_F), GNUTLS_CRD_CERTIFICATE, x509);
gnutls_dh_set_prime_bits(SSL_P(new_F), 1024);
gnutls_transport_set_ptr(SSL_P(new_F), (gnutls_transport_ptr_t) (long int)rb_get_fd(new_F));
gnutls_certificate_server_set_request(SSL_P(new_F), GNUTLS_CERT_REQUEST);
if(do_ssl_handshake(F, rb_ssl_tryaccept))
{
struct acceptdata *ad = F->accept;
@ -499,8 +502,41 @@ rb_get_ssl_strerror(rb_fde_t *F)
int
rb_get_ssl_certfp(rb_fde_t *F, uint8_t certfp[RB_SSL_CERTFP_LEN])
{
/* XXX implement this for gnutls */
return 0;
gnutls_x509_crt_t cert;
unsigned int cert_list_size;
const gnutls_datum_t *cert_list;
uint8_t digest[RB_SSL_CERTFP_LEN * 2];
size_t digest_size;
if (gnutls_certificate_type_get(SSL_P(F)) != GNUTLS_CRT_X509)
return 0;
if (gnutls_x509_crt_init(&cert) < 0)
return 0;
cert_list_size = 0;
cert_list = gnutls_certificate_get_peers(SSL_P(F), &cert_list_size);
if (cert_list == NULL)
{
gnutls_x509_crt_deinit(cert);
return 0;
}
if (gnutls_x509_crt_import(cert, &cert_list[0], GNUTLS_X509_FMT_DER) < 0)
{
gnutls_x509_crt_deinit(cert);
return 0;
}
if (gnutls_x509_crt_get_fingerprint(cert, GNUTLS_DIG_SHA1, digest, &digest_size) < 0)
{
gnutls_x509_crt_deinit(cert);
return 0;
}
memcpy(certfp, digest, RB_SSL_CERTFP_LEN);
return 1;
}
int