Import from old repository commit 61ef2b42a9c4ba8e1600f15bb0236765edc2ad45.v0.90.0

1 files changed, 141 insertions, 0 deletions

diff --git a/lib/netlink-protocol.h b/lib/netlink-protocol.h
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+++ b/lib/netlink-protocol.h
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+/*
+ * Copyright (c) 2008 Nicira Networks.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef NETLINK_PROTOCOL_H
+#define NETLINK_PROTOCOL_H 1
+
+/* Netlink protocol definitions.
+ *
+ * These definitions are equivalent to those in the Linux 2.6 kernel headers,
+ * without requiring those headers to be available. */
+
+#include <stdint.h>
+#include <sys/socket.h>
+#include "util.h"
+
+#define NETLINK_GENERIC         16
+
+struct sockaddr_nl {
+    sa_family_t nl_family;
+    unsigned short int nl_pad;
+    uint32_t nl_pid;
+    uint32_t nl_groups;
+};
+BUILD_ASSERT_DECL(sizeof(struct sockaddr_nl) == 12);
+
+/* nlmsg_flags bits. */
+#define NLM_F_REQUEST           0x001
+#define NLM_F_MULTI             0x002
+#define NLM_F_ACK               0x004
+#define NLM_F_ECHO              0x008
+
+#define NLM_F_ROOT              0x100
+#define NLM_F_MATCH             0x200
+#define NLM_F_ATOMIC            0x400
+#define NLM_F_DUMP              (NLM_F_ROOT | NLM_F_MATCH)
+
+/* nlmsg_type values. */
+#define NLMSG_NOOP              1
+#define NLMSG_ERROR             2
+#define NLMSG_DONE              3
+#define NLMSG_OVERRUN           4
+
+#define NLMSG_MIN_TYPE          0x10
+
+struct nlmsghdr {
+    uint32_t nlmsg_len;
+    uint16_t nlmsg_type;
+    uint16_t nlmsg_flags;
+    uint32_t nlmsg_seq;
+    uint32_t nlmsg_pid;
+};
+BUILD_ASSERT_DECL(sizeof(struct nlmsghdr) == 16);
+
+#define NLMSG_ALIGNTO 4
+#define NLMSG_ALIGN(SIZE) ROUND_UP(SIZE, NLMSG_ALIGNTO)
+#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+
+struct nlmsgerr
+{
+        int error;
+        struct nlmsghdr msg;
+};
+BUILD_ASSERT_DECL(sizeof(struct nlmsgerr) == 20);
+
+#define NETLINK_ADD_MEMBERSHIP  1
+#define NETLINK_DROP_MEMBERSHIP 2
+#define NETLINK_PKTINFO         3
+
+struct genlmsghdr {
+    uint8_t cmd;
+    uint8_t version;
+    uint16_t reserved;
+};
+BUILD_ASSERT_DECL(sizeof(struct genlmsghdr) == 4);
+
+#define GENL_HDRLEN NLMSG_ALIGN(sizeof(struct genlmsghdr))
+
+struct nlattr {
+    uint16_t nla_len;
+    uint16_t nla_type;
+};
+BUILD_ASSERT_DECL(sizeof(struct nlattr) == 4);
+
+#define NLA_ALIGNTO 4
+#define NLA_ALIGN(SIZE) ROUND_UP(SIZE, NLA_ALIGNTO)
+#define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr)))
+
+#define GENL_MIN_ID     NLMSG_MIN_TYPE
+#define GENL_MAX_ID     1023
+
+#define GENL_ID_CTRL            NLMSG_MIN_TYPE
+
+enum {
+        CTRL_CMD_UNSPEC,
+        CTRL_CMD_NEWFAMILY,
+        CTRL_CMD_DELFAMILY,
+        CTRL_CMD_GETFAMILY,
+        CTRL_CMD_NEWOPS,
+        CTRL_CMD_DELOPS,
+        CTRL_CMD_GETOPS,
+        __CTRL_CMD_MAX,
+};
+
+#define CTRL_CMD_MAX (__CTRL_CMD_MAX - 1)
+
+enum {
+        CTRL_ATTR_UNSPEC,
+        CTRL_ATTR_FAMILY_ID,
+        CTRL_ATTR_FAMILY_NAME,
+        CTRL_ATTR_VERSION,
+        CTRL_ATTR_HDRSIZE,
+        CTRL_ATTR_MAXATTR,
+        CTRL_ATTR_OPS,
+        __CTRL_ATTR_MAX,
+};
+
+#define CTRL_ATTR_MAX (__CTRL_ATTR_MAX - 1)
+
+enum {
+        CTRL_ATTR_OP_UNSPEC,
+        CTRL_ATTR_OP_ID,
+        CTRL_ATTR_OP_FLAGS,
+        __CTRL_ATTR_OP_MAX,
+};
+
+#define CTRL_ATTR_OP_MAX (__CTRL_ATTR_OP_MAX - 1)
+
+#endif /* netlink-protocol.h */