static struct dns_connection *setup_connection(struct torture_context *tctx)
{
DNS_ERROR err;
struct dns_connection *conn;
err = dns_open_connection(getenv("DC_SERVER_IP"), DNS_TCP, tctx, &conn);
if (!ERR_DNS_IS_OK(err)) {
printf("Failed to open connection to DNS server\n");
return NULL;
}
return conn;
}
DNS_ERROR dns_negotiate_sec_ctx( const char *target_realm,
const char *servername,
const char *keyname,
gss_ctx_id_t *gss_ctx,
enum dns_ServerType srv_type )
{
OM_uint32 major, minor;
char *upcaserealm, *targetname;
DNS_ERROR err;
gss_buffer_desc input_name;
struct dns_connection *conn;
gss_name_t targ_name;
gss_OID_desc nt_host_oid_desc =
{10, (const char *)"\x2a\x86\x48\x86\xf7\x12\x01\x02\x02\x01"};
TALLOC_CTX *mem_ctx;
if (!(mem_ctx = talloc_init("dns_negotiate_sec_ctx"))) {
return ERROR_DNS_NO_MEMORY;
}
err = dns_open_connection( servername, DNS_TCP, mem_ctx, &conn );
if (!ERR_DNS_IS_OK(err)) goto error;
if (!(upcaserealm = talloc_strdup(mem_ctx, target_realm))) {
err = ERROR_DNS_NO_MEMORY;
goto error;
}
strupr(upcaserealm);
if (!(targetname = talloc_asprintf(mem_ctx, "dns/%s@%s",
servername, upcaserealm))) {
err = ERROR_DNS_NO_MEMORY;
goto error;
}
input_name.value = targetname;
input_name.length = strlen(targetname);
major = gss_import_name( &minor, &input_name,
&nt_host_oid_desc, &targ_name );
if (major) {
err = ERROR_DNS_GSS_ERROR;
goto error;
}
err = dns_negotiate_gss_ctx_int(mem_ctx, conn, keyname,
targ_name, gss_ctx, srv_type );
gss_release_name( &minor, &targ_name );
error:
TALLOC_FREE(mem_ctx);
return err;
}
