This commit was generated by cvs2svn to compensate for changes in r786,

[libnl.git] / include / netlink / netlink-kernel.h

diff --git a/include/netlink/netlink-kernel.h b/include/netlink/netlink-kernel.h
new file mode 100644 (file)
index 0000000..134710d
--- /dev/null
+++ b/include/netlink/netlink-kernel.h
@@ -0,0 +1,242 @@
+#ifndef __LINUX_NETLINK_H
+#define __LINUX_NETLINK_H
+
+#define NETLINK_ROUTE          0       /* Routing/device hook */
+#define NETLINK_W1             1       /* 1-wire subsystem */
+#define NETLINK_USERSOCK       2       /* Reserved for user mode socket protocols      */
+#define NETLINK_FIREWALL       3       /* Firewalling hook             */
+#define NETLINK_INET_DIAG      4       /* INET socket monitoring */
+#define NETLINK_TCPDIAG                NETLINK_INET_DIAG
+#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
+#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
+
+#define MAX_LINKS 32           
+
+/**
+ * Netlink socket address
+ * @ingroup nl
+ */
+struct sockaddr_nl
+{
+       /** socket family (AF_NETLINK) */
+       sa_family_t     nl_family;
+
+       /** Padding (unused) */
+       unsigned short  nl_pad;
+
+       /** Unique process ID  */
+       uint32_t        nl_pid;
+
+       /** Multicast group subscriptions */
+       uint32_t        nl_groups;
+};
+
+/**
+ * Netlink message header
+ * @ingroup msg
+ */
+struct nlmsghdr
+{
+       /**
+        * Length of message including header.
+        */
+       uint32_t        nlmsg_len;
+
+       /**
+        * Message type (content type)
+        */
+       uint16_t        nlmsg_type;
+
+       /**
+        * Message flags
+        */
+       uint16_t        nlmsg_flags;
+
+       /**
+        * Sequence number
+        */
+       uint32_t        nlmsg_seq;
+
+       /**
+        * Netlink PID of the proccess sending the message.
+        */
+       uint32_t        nlmsg_pid;
+};
+
+/**
+ * @name Standard message flags
+ * @{
+ */
+
+/**
+ * Must be set on all request messages (typically from user space to
+ * kernel space).
+ * @ingroup msg
+ */
+#define NLM_F_REQUEST          1
+
+/**
+ * Indicates the message is part of a multipart message terminated
+ * by NLMSG_DONE.
+ */
+#define NLM_F_MULTI            2
+
+/**
+ * Request for an acknowledgment on success.
+ */
+#define NLM_F_ACK              4
+
+/**
+ * Echo this request
+ */
+#define NLM_F_ECHO             8
+
+/** @} */
+
+/**
+ * @name Additional message flags for GET requests
+ * @{
+ */
+
+/**
+ * Return the complete table instead of a single entry.
+ * @ingroup msg
+ */
+#define NLM_F_ROOT     0x100
+
+/**
+ * Return all entries matching criteria passed in message content.
+ */
+#define NLM_F_MATCH    0x200
+
+/**
+ * Return an atomic snapshot of the table being referenced. This
+ * may require special privileges because it has the potential to
+ * interrupt service in the FE for a longer time.
+ */
+#define NLM_F_ATOMIC   0x400
+
+/**
+ * Dump all entries
+ */
+#define NLM_F_DUMP     (NLM_F_ROOT|NLM_F_MATCH)
+
+/** @} */
+
+/**
+ * @name Additional messsage flags for NEW requests
+ * @{
+ */
+
+/**
+ * Replace existing matching config object with this request.
+ * @ingroup msg
+ */
+#define NLM_F_REPLACE  0x100
+
+/**
+ * Don't replace the config object if it already exists.
+ */
+#define NLM_F_EXCL     0x200
+
+/**
+ * Create config object if it doesn't already exist.
+ */
+#define NLM_F_CREATE   0x400
+
+/**
+ * Add to the end of the object list.
+ */
+#define NLM_F_APPEND   0x800
+
+/** @} */
+
+#define NLMSG_ALIGNTO  4
+#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
+#define NLMSG_HDRLEN    ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+
+/**
+ * @name Standard Message types
+ * @{
+ */
+
+/**
+ * No operation, message must be ignored
+ * @ingroup msg
+ */
+#define NLMSG_NOOP             0x1
+
+/**
+ * The message signals an error and the payload contains a nlmsgerr
+ * structure. This can be looked at as a NACK and typically it is
+ * from FEC to CPC.
+ */
+#define NLMSG_ERROR            0x2
+
+/**
+ * Message terminates a multipart message.
+ */
+#define NLMSG_DONE             0x3
+
+/**
+ * The message signals that data got lost
+ */
+#define NLMSG_OVERRUN          0x4
+
+/**
+ * Lower limit of reserved message types
+ */
+#define NLMSG_MIN_TYPE         0x10
+
+/** @} */
+
+/**
+ * Netlink error message
+ * @ingroup msg
+ */
+struct nlmsgerr
+{
+       /** Error code (errno number) */
+       int             error;
+
+       /** Original netlink message causing the error */
+       struct nlmsghdr msg;
+};
+
+#define NETLINK_ADD_MEMBERSHIP 1
+#define NETLINK_DROP_MEMBERSHIP        2
+#define NETLINK_PKTINFO                3
+
+struct nl_pktinfo
+{
+       __u32   group;
+};
+
+/**
+ * Netlink Attribute
+ * @ingroup attr
+ */
+struct nlattr
+{
+       /** Attribute length */
+       __u16           nla_len;
+
+       /** Attribute type */
+       __u16           nla_type;
+};
+
+#define NLA_ALIGNTO            4
+#define NLA_ALIGN(len)         (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1))
+#define NLA_HDRLEN             ((int) NLA_ALIGN(sizeof(struct nlattr)))
+
+#endif /* __LINUX_NETLINK_H */