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[irc/rqf/shadowircd.git] / libratbox / src / gnutls.c

diff --git a/libratbox/src/gnutls.c b/libratbox/src/gnutls.c
index 0da774870456cea18a8302bd6c8f093781d45505..7d1a879dc2d7a7f198bf0b32f15c4b71b83f7096 100644 (file)
--- a/libratbox/src/gnutls.c
+++ b/libratbox/src/gnutls.c
@@ -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;
@@ -496,6 +499,47 @@ rb_get_ssl_strerror(rb_fde_t *F)
        return gnutls_strerror(F->ssl_errno);
 }
 
+int
+rb_get_ssl_certfp(rb_fde_t *F, uint8_t certfp[RB_SSL_CERTFP_LEN])
+{
+       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);
+
+       gnutls_x509_crt_deinit(cert);
+       return 1;
+}
+
 int
 rb_supports_ssl(void)
 {