This commit was generated by cvs2svn to compensate for changes in r1650,

[iproute2.git] / include / linux / netlink.h

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
new file mode 100644 (file)
index 0000000..13828e5
--- /dev/null
+++ b/include/linux/netlink.h
@@ -0,0 +1,101 @@
+#ifndef __LINUX_NETLINK_H
+#define __LINUX_NETLINK_H
+
+#include <linux/socket.h> /* for sa_family_t */
+#include <linux/types.h>
+
+#define NETLINK_ROUTE          0       /* Routing/device hook                          */
+#define NETLINK_SKIP           1       /* Reserved for ENskip                          */
+#define NETLINK_USERSOCK       2       /* Reserved for user mode socket protocols      */
+#define NETLINK_FIREWALL       3       /* Firewalling hook                             */
+#define NETLINK_TCPDIAG                4       /* TCP socket monitoring                        */
+#define NETLINK_NFLOG          5       /* netfilter/iptables ULOG */
+#define NETLINK_XFRM           6       /* ipsec */
+#define NETLINK_SELINUX                7       /* SELinux event notifications */
+#define NETLINK_ARPD           8
+#define NETLINK_AUDIT          9       /* auditing */
+#define NETLINK_ROUTE6         11      /* af_inet6 route comm channel */
+#define NETLINK_IP6_FW         13
+#define NETLINK_DNRTMSG                14      /* DECnet routing messages */
+#define NETLINK_KOBJECT_UEVENT 15      /* Kernel messages to userspace */
+#define NETLINK_TAPBASE                16      /* 16 to 31 are ethertap */
+
+#define MAX_LINKS 32           
+
+struct sockaddr_nl
+{
+       sa_family_t     nl_family;      /* AF_NETLINK   */
+       unsigned short  nl_pad;         /* zero         */
+       __u32           nl_pid;         /* process pid  */
+               __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 PID */
+};
+
+/* Flags values */
+
+#define NLM_F_REQUEST          1       /* It is request message.       */
+#define NLM_F_MULTI            2       /* Multipart message, terminated by NLMSG_DONE */
+#define NLM_F_ACK              4       /* Reply with ack, with zero or error code */
+#define NLM_F_ECHO             8       /* Echo this request            */
+
+/* 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           */
+
+/*
+   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  4
+#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) )
+#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+#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            */
+
+struct nlmsgerr
+{
+       int             error;
+       struct nlmsghdr msg;
+};
+
+#define NET_MAJOR 36           /* Major 36 is reserved for networking                                          */
+
+enum {
+       NETLINK_UNCONNECTED = 0,
+       NETLINK_CONNECTED,
+};
+
+
+#endif /* __LINUX_NETLINK_H */