1 files changed, 251 insertions, 0 deletions

diff --git a/tools/include/uapi/linux/netlink.h b/tools/include/uapi/linux/netlink.h
new file mode 100644
index 000000000000..776bc92e9118
--- /dev/null
+++ b/tools/include/uapi/linux/netlink.h
@@ -0,0 +1,251 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__LINUX_NETLINK_H
+#define _UAPI__LINUX_NETLINK_H
+
+#include <linux/kernel.h>
+#include <linux/socket.h> /* for __kernel_sa_family_t */
+#include <linux/types.h>
+
+#define NETLINK_ROUTE           0       /* Routing/device hook                          */
+#define NETLINK_UNUSED          1       /* Unused number                                */
+#define NETLINK_USERSOCK        2       /* Reserved for user mode socket protocols      */
+#define NETLINK_FIREWALL        3       /* Unused number, formerly ip_queue             */
+#define NETLINK_SOCK_DIAG       4       /* socket monitoring                            */
+#define NETLINK_NFLOG           5       /* netfilter/iptables ULOG */
+#define NETLINK_XFRM            6       /* ipsec */
+#define NETLINK_SELINUX         7       /* SELinux event notifications */
+#define NETLINK_ISCSI           8       /* Open-iSCSI */
+#define NETLINK_AUDIT           9       /* auditing */
+#define NETLINK_FIB_LOOKUP      10      
+#define NETLINK_CONNECTOR       11
+#define NETLINK_NETFILTER       12      /* netfilter subsystem */
+#define NETLINK_IP6_FW          13
+#define NETLINK_DNRTMSG         14      /* DECnet routing messages */
+#define NETLINK_KOBJECT_UEVENT  15      /* Kernel messages to userspace */
+#define NETLINK_GENERIC         16
+/* leave room for NETLINK_DM (DM Events) */
+#define NETLINK_SCSITRANSPORT   18      /* SCSI Transports */
+#define NETLINK_ECRYPTFS        19
+#define NETLINK_RDMA            20
+#define NETLINK_CRYPTO          21      /* Crypto layer */
+#define NETLINK_SMC             22      /* SMC monitoring */
+
+#define NETLINK_INET_DIAG       NETLINK_SOCK_DIAG
+
+#define MAX_LINKS 32            
+
+struct sockaddr_nl {
+        __kernel_sa_family_t    nl_family;      /* AF_NETLINK   */
+        unsigned short  nl_pad;         /* zero         */
+        __u32           nl_pid;         /* port ID      */
+        __u32           nl_groups;      /* multicast groups mask */
+};
+
+struct nlmsghdr {
+        __u32           nlmsg_len;      /* Length of message including header */
+        __u16           nlmsg_type;     /* Message content */
+        __u16           nlmsg_flags;    /* Additional flags */
+        __u32           nlmsg_seq;      /* Sequence number */
+        __u32           nlmsg_pid;      /* Sending process port ID */
+};
+
+/* Flags values */
+
+#define NLM_F_REQUEST           0x01    /* It is request message.       */
+#define NLM_F_MULTI             0x02    /* Multipart message, terminated by NLMSG_DONE */
+#define NLM_F_ACK               0x04    /* Reply with ack, with zero or error code */
+#define NLM_F_ECHO              0x08    /* Echo this request            */
+#define NLM_F_DUMP_INTR         0x10    /* Dump was inconsistent due to sequence change */
+#define NLM_F_DUMP_FILTERED     0x20    /* Dump was filtered as requested */
+
+/* Modifiers to GET request */
+#define NLM_F_ROOT      0x100   /* specify tree root    */
+#define NLM_F_MATCH     0x200   /* return all matching  */
+#define NLM_F_ATOMIC    0x400   /* atomic GET           */
+#define NLM_F_DUMP      (NLM_F_ROOT|NLM_F_MATCH)
+
+/* Modifiers to NEW request */
+#define NLM_F_REPLACE   0x100   /* Override existing            */
+#define NLM_F_EXCL      0x200   /* Do not touch, if it exists   */
+#define NLM_F_CREATE    0x400   /* Create, if it does not exist */
+#define NLM_F_APPEND    0x800   /* Add to end of list           */
+
+/* Modifiers to DELETE request */
+#define NLM_F_NONREC    0x100   /* Do not delete recursively    */
+
+/* Flags for ACK message */
+#define NLM_F_CAPPED    0x100   /* request was capped */
+#define NLM_F_ACK_TLVS  0x200   /* extended ACK TVLs were included */
+
+/*
+   4.4BSD ADD           NLM_F_CREATE|NLM_F_EXCL
+   4.4BSD CHANGE        NLM_F_REPLACE
+
+   True CHANGE          NLM_F_CREATE|NLM_F_REPLACE
+   Append               NLM_F_CREATE
+   Check                NLM_F_EXCL
+ */
+
+#define NLMSG_ALIGNTO   4U
+#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
+#define NLMSG_HDRLEN     ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+#define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN)
+#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
+#define NLMSG_DATA(nlh)  ((void*)(((char*)nlh) + NLMSG_LENGTH(0)))
+#define NLMSG_NEXT(nlh,len)      ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
+                                  (struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len)))
+#define NLMSG_OK(nlh,len) ((len) >= (int)sizeof(struct nlmsghdr) && \
+                           (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
+                           (nlh)->nlmsg_len <= (len))
+#define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
+
+#define NLMSG_NOOP              0x1     /* Nothing.             */
+#define NLMSG_ERROR             0x2     /* Error                */
+#define NLMSG_DONE              0x3     /* End of a dump        */
+#define NLMSG_OVERRUN           0x4     /* Data lost            */
+
+#define NLMSG_MIN_TYPE          0x10    /* < 0x10: reserved control messages */
+
+struct nlmsgerr {
+        int             error;
+        struct nlmsghdr msg;
+        /*
+         * followed by the message contents unless NETLINK_CAP_ACK was set
+         * or the ACK indicates success (error == 0)
+         * message length is aligned with NLMSG_ALIGN()
+         */
+        /*
+         * followed by TLVs defined in enum nlmsgerr_attrs
+         * if NETLINK_EXT_ACK was set
+         */
+};
+
+/**
+ * enum nlmsgerr_attrs - nlmsgerr attributes
+ * @NLMSGERR_ATTR_UNUSED: unused
+ * @NLMSGERR_ATTR_MSG: error message string (string)
+ * @NLMSGERR_ATTR_OFFS: offset of the invalid attribute in the original
+ *       message, counting from the beginning of the header (u32)
+ * @NLMSGERR_ATTR_COOKIE: arbitrary subsystem specific cookie to
+ *      be used - in the success case - to identify a created
+ *      object or operation or similar (binary)
+ * @__NLMSGERR_ATTR_MAX: number of attributes
+ * @NLMSGERR_ATTR_MAX: highest attribute number
+ */
+enum nlmsgerr_attrs {
+        NLMSGERR_ATTR_UNUSED,
+        NLMSGERR_ATTR_MSG,
+        NLMSGERR_ATTR_OFFS,
+        NLMSGERR_ATTR_COOKIE,
+
+        __NLMSGERR_ATTR_MAX,
+        NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MAX - 1
+};
+
+#define NETLINK_ADD_MEMBERSHIP          1
+#define NETLINK_DROP_MEMBERSHIP         2
+#define NETLINK_PKTINFO                 3
+#define NETLINK_BROADCAST_ERROR         4
+#define NETLINK_NO_ENOBUFS              5
+#ifndef __KERNEL__
+#define NETLINK_RX_RING                 6
+#define NETLINK_TX_RING                 7
+#endif
+#define NETLINK_LISTEN_ALL_NSID         8
+#define NETLINK_LIST_MEMBERSHIPS        9
+#define NETLINK_CAP_ACK                 10
+#define NETLINK_EXT_ACK                 11
+
+struct nl_pktinfo {
+        __u32   group;
+};
+
+struct nl_mmap_req {
+        unsigned int    nm_block_size;
+        unsigned int    nm_block_nr;
+        unsigned int    nm_frame_size;
+        unsigned int    nm_frame_nr;
+};
+
+struct nl_mmap_hdr {
+        unsigned int    nm_status;
+        unsigned int    nm_len;
+        __u32           nm_group;
+        /* credentials */
+        __u32           nm_pid;
+        __u32           nm_uid;
+        __u32           nm_gid;
+};
+
+#ifndef __KERNEL__
+enum nl_mmap_status {
+        NL_MMAP_STATUS_UNUSED,
+        NL_MMAP_STATUS_RESERVED,
+        NL_MMAP_STATUS_VALID,
+        NL_MMAP_STATUS_COPY,
+        NL_MMAP_STATUS_SKIP,
+};
+
+#define NL_MMAP_MSG_ALIGNMENT           NLMSG_ALIGNTO
+#define NL_MMAP_MSG_ALIGN(sz)           __ALIGN_KERNEL(sz, NL_MMAP_MSG_ALIGNMENT)
+#define NL_MMAP_HDRLEN                  NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr))
+#endif
+
+#define NET_MAJOR 36            /* Major 36 is reserved for networking                                          */
+
+enum {
+        NETLINK_UNCONNECTED = 0,
+        NETLINK_CONNECTED,
+};
+
+/*
+ *  <------- NLA_HDRLEN ------> <-- NLA_ALIGN(payload)-->
+ * +---------------------+- - -+- - - - - - - - - -+- - -+
+ * |        Header       | Pad |     Payload       | Pad |
+ * |   (struct nlattr)   | ing |                   | ing |
+ * +---------------------+- - -+- - - - - - - - - -+- - -+
+ *  <-------------- nlattr->nla_len -------------->
+ */
+
+struct nlattr {
+        __u16           nla_len;
+        __u16           nla_type;
+};
+
+/*
+ * nla_type (16 bits)
+ * +---+---+-------------------------------+
+ * | N | O | Attribute Type                |
+ * +---+---+-------------------------------+
+ * N := Carries nested attributes
+ * O := Payload stored in network byte order
+ *
+ * Note: The N and O flag are mutually exclusive.
+ */
+#define NLA_F_NESTED            (1 << 15)
+#define NLA_F_NET_BYTEORDER     (1 << 14)
+#define NLA_TYPE_MASK           ~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
+
+#define NLA_ALIGNTO             4
+#define NLA_ALIGN(len)          (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
+#define NLA_HDRLEN              ((int) NLA_ALIGN(sizeof(struct nlattr)))
+
+/* Generic 32 bitflags attribute content sent to the kernel.
+ *
+ * The value is a bitmap that defines the values being set
+ * The selector is a bitmask that defines which value is legit
+ *
+ * Examples:
+ *  value = 0x0, and selector = 0x1
+ *  implies we are selecting bit 1 and we want to set its value to 0.
+ *
+ *  value = 0x2, and selector = 0x2
+ *  implies we are selecting bit 2 and we want to set its value to 1.
+ *
+ */
+struct nla_bitfield32 {
+        __u32 value;
+        __u32 selector;
+};
+
+#endif /* _UAPI__LINUX_NETLINK_H */