1 files changed, 97 insertions, 0 deletions
diff --git a/lib/libcapsicum/libcapsicum_service.c b/lib/libcapsicum/libcapsicum_service.c
new file mode 100644
index 0000000..6b6ceea
--- /dev/null
+++ b/lib/libcapsicum/libcapsicum_service.c
@@ -0,0 +1,97 @@
+/*-
+ * Copyright (c) 2013 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/nv.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "msgio.h"
+
+#include "libcapsicum.h"
+#include "libcapsicum_impl.h"
+#include "libcapsicum_service.h"
+
+cap_channel_t *
+cap_service_open(const cap_channel_t *chan, const char *name)
+{
+	cap_channel_t *newchan;
+	nvlist_t *nvl;
+	int sock, error;
+
+	sock = -1;
+
+	nvl = nvlist_create(0);
+	nvlist_add_string(nvl, "cmd", "open");
+	nvlist_add_string(nvl, "service", name);
+	if (fd_is_valid(STDERR_FILENO))
+		nvlist_add_descriptor(nvl, "stderrfd", STDERR_FILENO);
+	nvl = cap_xfer_nvlist(chan, nvl, 0);
+	if (nvl == NULL)
+		return (NULL);
+	error = (int)nvlist_get_number(nvl, "error");
+	if (error != 0) {
+		nvlist_destroy(nvl);
+		errno = error;
+		return (NULL);
+	}
+	sock = nvlist_take_descriptor(nvl, "chanfd");
+	assert(sock >= 0);
+	nvlist_destroy(nvl);
+	nvl = NULL;
+	if (cred_send(sock) == -1)
+		goto fail;
+	newchan = cap_wrap(sock);
+	if (newchan == NULL)
+		goto fail;
+	return (newchan);
+fail:
+	error = errno;
+	close(sock);
+	errno = error;
+	return (NULL);
+}
+
+int
+cap_service_limit(const cap_channel_t *chan, const char * const *names,
+    size_t nnames)
+{
+	nvlist_t *limits;
+	unsigned int i;
+
+	limits = nvlist_create(0);
+	for (i = 0; i < nnames; i++)
+		nvlist_add_null(limits, names[i]);
+	return (cap_limit_set(chan, limits));
+}