Imported Upstream version 17.05

[deb_dpdk.git] / drivers / net / tap / tap_netlink.h

diff --git a/drivers/net/tap/tap_netlink.h b/drivers/net/tap/tap_netlink.h
new file mode 100644 (file)
index 0000000..98e1390
--- /dev/null
+++ b/drivers/net/tap/tap_netlink.h
@@ -0,0 +1,69 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright 2017 6WIND S.A.
+ *   Copyright 2017 Mellanox.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of 6WIND S.A. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+ *   OWNER 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.
+ */
+
+#ifndef _TAP_NETLINK_H_
+#define _TAP_NETLINK_H_
+
+#include <ctype.h>
+#include <inttypes.h>
+#include <linux/rtnetlink.h>
+#include <linux/netlink.h>
+#include <stdio.h>
+
+#include <rte_log.h>
+
+#define NLMSG_BUF 512
+
+struct nlmsg {
+       struct nlmsghdr nh;
+       struct tcmsg t;
+       char buf[NLMSG_BUF];
+       struct nested_tail *nested_tails;
+};
+
+#define NLMSG_TAIL(nlh) (void *)((char *)(nlh) + NLMSG_ALIGN((nlh)->nlmsg_len))
+
+int nl_init(uint32_t nl_groups);
+int nl_final(int nlsk_fd);
+int nl_send(int nlsk_fd, struct nlmsghdr *nh);
+int nl_recv(int nlsk_fd, int (*callback)(struct nlmsghdr *, void *), void *arg);
+int nl_recv_ack(int nlsk_fd);
+void nlattr_add(struct nlmsghdr *nh, unsigned short type,
+               unsigned int data_len, const void *data);
+void nlattr_add8(struct nlmsghdr *nh, unsigned short type, uint8_t data);
+void nlattr_add16(struct nlmsghdr *nh, unsigned short type, uint16_t data);
+void nlattr_add32(struct nlmsghdr *nh, unsigned short type, uint32_t data);
+int nlattr_nested_start(struct nlmsg *msg, uint16_t type);
+void nlattr_nested_finish(struct nlmsg *msg);
+
+#endif /* _TAP_NETLINK_H_ */