--- /dev/null
+#ifndef __LINUX_NETLINK_H
+#define __LINUX_NETLINK_H
+
+#include <stdint.h>
+#include <sys/socket.h> /* for sa_family_t */
+
+#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_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
+
+#define MAX_LINKS 32
+
+struct sockaddr_nl
+{
+ sa_family_t nl_family; /* AF_NETLINK */
+ unsigned short nl_pad; /* zero */
+ uint32_t nl_pid; /* process pid */
+ uint32_t nl_groups; /* multicast groups mask */
+};
+
+struct nlmsghdr
+{
+ uint32_t nlmsg_len; /* Length of message including header */
+ uint16_t nlmsg_type; /* Message content */
+ uint16_t nlmsg_flags; /* Additional flags */
+ uint32_t nlmsg_seq; /* Sequence number */
+ uint32_t 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_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(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;
+};
+
+#define NETLINK_ADD_MEMBERSHIP 1
+#define NETLINK_DROP_MEMBERSHIP 2
+#define NETLINK_PKTINFO 3
+
+struct nl_pktinfo
+{
+ uint32_t group;
+};
+
+#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
+{
+ uint16_t nla_len;
+ uint16_t 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)))
+
+#ifdef __KERNEL__
+
+#include <linux/capability.h>
+#include <linux/skbuff.h>
+
+struct netlink_skb_parms
+{
+ struct ucred creds; /* Skb credentials */
+ uint32_t pid;
+ uint32_t dst_pid;
+ uint32_t dst_group;
+ kernel_cap_t eff_cap;
+ uint32_t loginuid; /* Login (audit) uid */
+ uint32_t sid; /* SELinux security id */
+};
+
+#define NETLINK_CB(skb) (*(struct netlink_skb_parms*)&((skb)->cb))
+#define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds)
+
+
+extern struct sock *netlink_kernel_create(int unit, unsigned int groups, void (*input)(struct sock *sk, int len), struct module *module);
+extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);
+extern int netlink_has_listeners(struct sock *sk, unsigned int group);
+extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, uint32_t pid, int nonblock);
+extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, uint32_t pid,
+ uint32_t group, gfp_t allocation);
+extern void netlink_set_err(struct sock *ssk, uint32_t pid, uint32_t group, int code);
+extern int netlink_register_notifier(struct notifier_block *nb);
+extern int netlink_unregister_notifier(struct notifier_block *nb);
+
+/* finegrained unicast helpers: */
+struct sock *netlink_getsockbyfilp(struct file *filp);
+int netlink_attachskb(struct sock *sk, struct sk_buff *skb, int nonblock,
+ long timeo, struct sock *ssk);
+void netlink_detachskb(struct sock *sk, struct sk_buff *skb);
+int netlink_sendskb(struct sock *sk, struct sk_buff *skb, int protocol);
+
+/*
+ * skb should fit one page. This choice is good for headerless malloc.
+ */
+#define NLMSG_GOODORDER 0
+#define NLMSG_GOODSIZE (SKB_MAX_ORDER(0, NLMSG_GOODORDER))
+
+
+struct netlink_callback
+{
+ struct sk_buff *skb;
+ struct nlmsghdr *nlh;
+ int (*dump)(struct sk_buff * skb, struct netlink_callback *cb);
+ int (*done)(struct netlink_callback *cb);
+ int family;
+ long args[5];
+};
+
+struct netlink_notify
+{
+ int pid;
+ int protocol;
+};
+
+static __inline__ struct nlmsghdr *
+__nlmsg_put(struct sk_buff *skb, uint32_t pid, uint32_t seq, int type, int len, int flags)
+{
+ struct nlmsghdr *nlh;
+ int size = NLMSG_LENGTH(len);
+
+ nlh = (struct nlmsghdr*)skb_put(skb, NLMSG_ALIGN(size));
+ nlh->nlmsg_type = type;
+ nlh->nlmsg_len = size;
+ nlh->nlmsg_flags = flags;
+ nlh->nlmsg_pid = pid;
+ nlh->nlmsg_seq = seq;
+ memset(NLMSG_DATA(nlh) + len, 0, NLMSG_ALIGN(size) - size);
+ return nlh;
+}
+
+#define NLMSG_NEW(skb, pid, seq, type, len, flags) \
+({ if (skb_tailroom(skb) < (int)NLMSG_SPACE(len)) \
+ goto nlmsg_failure; \
+ __nlmsg_put(skb, pid, seq, type, len, flags); })
+
+#define NLMSG_PUT(skb, pid, seq, type, len) \
+ NLMSG_NEW(skb, pid, seq, type, len, 0)
+
+#define NLMSG_NEW_ANSWER(skb, cb, type, len, flags) \
+ NLMSG_NEW(skb, NETLINK_CB((cb)->skb).pid, \
+ (cb)->nlh->nlmsg_seq, type, len, flags)
+
+#define NLMSG_END(skb, nlh) \
+({ (nlh)->nlmsg_len = (skb)->tail - (unsigned char *) (nlh); \
+ (skb)->len; })
+
+#define NLMSG_CANCEL(skb, nlh) \
+({ skb_trim(skb, (unsigned char *) (nlh) - (skb)->data); \
+ -1; })
+
+extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
+ struct nlmsghdr *nlh,
+ int (*dump)(struct sk_buff *skb, struct netlink_callback*),
+ int (*done)(struct netlink_callback*));
+
+
+#define NL_NONROOT_RECV 0x1
+#define NL_NONROOT_SEND 0x2
+extern void netlink_set_nonroot(int protocol, unsigned flag);
+
+#endif /* __KERNEL__ */
+
+#endif /* __LINUX_NETLINK_H */
--- /dev/null
+#ifndef __LINUX_RTNETLINK_H
+#define __LINUX_RTNETLINK_H
+
+#include "netlink.h"
+#include <stdint.h>
+
+/****
+ * Routing/neighbour discovery messages.
+ ****/
+
+/* Types of messages */
+
+enum {
+ RTM_BASE = 16,
+#define RTM_BASE RTM_BASE
+
+ RTM_NEWLINK = 16,
+#define RTM_NEWLINK RTM_NEWLINK
+ RTM_DELLINK,
+#define RTM_DELLINK RTM_DELLINK
+ RTM_GETLINK,
+#define RTM_GETLINK RTM_GETLINK
+ RTM_SETLINK,
+#define RTM_SETLINK RTM_SETLINK
+
+ RTM_NEWADDR = 20,
+#define RTM_NEWADDR RTM_NEWADDR
+ RTM_DELADDR,
+#define RTM_DELADDR RTM_DELADDR
+ RTM_GETADDR,
+#define RTM_GETADDR RTM_GETADDR
+
+ RTM_NEWROUTE = 24,
+#define RTM_NEWROUTE RTM_NEWROUTE
+ RTM_DELROUTE,
+#define RTM_DELROUTE RTM_DELROUTE
+ RTM_GETROUTE,
+#define RTM_GETROUTE RTM_GETROUTE
+
+ RTM_NEWNEIGH = 28,
+#define RTM_NEWNEIGH RTM_NEWNEIGH
+ RTM_DELNEIGH,
+#define RTM_DELNEIGH RTM_DELNEIGH
+ RTM_GETNEIGH,
+#define RTM_GETNEIGH RTM_GETNEIGH
+
+ RTM_NEWRULE = 32,
+#define RTM_NEWRULE RTM_NEWRULE
+ RTM_DELRULE,
+#define RTM_DELRULE RTM_DELRULE
+ RTM_GETRULE,
+#define RTM_GETRULE RTM_GETRULE
+
+ RTM_NEWQDISC = 36,
+#define RTM_NEWQDISC RTM_NEWQDISC
+ RTM_DELQDISC,
+#define RTM_DELQDISC RTM_DELQDISC
+ RTM_GETQDISC,
+#define RTM_GETQDISC RTM_GETQDISC
+
+ RTM_NEWTCLASS = 40,
+#define RTM_NEWTCLASS RTM_NEWTCLASS
+ RTM_DELTCLASS,
+#define RTM_DELTCLASS RTM_DELTCLASS
+ RTM_GETTCLASS,
+#define RTM_GETTCLASS RTM_GETTCLASS
+
+ RTM_NEWTFILTER = 44,
+#define RTM_NEWTFILTER RTM_NEWTFILTER
+ RTM_DELTFILTER,
+#define RTM_DELTFILTER RTM_DELTFILTER
+ RTM_GETTFILTER,
+#define RTM_GETTFILTER RTM_GETTFILTER
+
+ RTM_NEWACTION = 48,
+#define RTM_NEWACTION RTM_NEWACTION
+ RTM_DELACTION,
+#define RTM_DELACTION RTM_DELACTION
+ RTM_GETACTION,
+#define RTM_GETACTION RTM_GETACTION
+
+ RTM_NEWPREFIX = 52,
+#define RTM_NEWPREFIX RTM_NEWPREFIX
+ RTM_GETPREFIX = 54,
+#define RTM_GETPREFIX RTM_GETPREFIX
+
+ RTM_GETMULTICAST = 58,
+#define RTM_GETMULTICAST RTM_GETMULTICAST
+
+ RTM_GETANYCAST = 62,
+#define RTM_GETANYCAST RTM_GETANYCAST
+
+ RTM_NEWNEIGHTBL = 64,
+#define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL
+ RTM_GETNEIGHTBL = 66,
+#define RTM_GETNEIGHTBL RTM_GETNEIGHTBL
+ RTM_SETNEIGHTBL,
+#define RTM_SETNEIGHTBL RTM_SETNEIGHTBL
+
+ __RTM_MAX,
+#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1)
+};
+
+#define RTM_NR_MSGTYPES (RTM_MAX + 1 - RTM_BASE)
+#define RTM_NR_FAMILIES (RTM_NR_MSGTYPES >> 2)
+#define RTM_FAM(cmd) (((cmd) - RTM_BASE) >> 2)
+
+/*
+ Generic structure for encapsulation of optional route information.
+ It is reminiscent of sockaddr, but with sa_family replaced
+ with attribute type.
+ */
+
+struct rtattr
+{
+ unsigned short rta_len;
+ unsigned short rta_type;
+};
+
+/* Macros to handle rtattributes */
+
+#define RTA_ALIGNTO 4
+#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
+#define RTA_OK(rta,len) ((len) >= (int)sizeof(struct rtattr) && \
+ (rta)->rta_len >= sizeof(struct rtattr) && \
+ (rta)->rta_len <= (len))
+#define RTA_NEXT(rta,attrlen) ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
+ (struct rtattr*)(((char*)(rta)) + RTA_ALIGN((rta)->rta_len)))
+#define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))
+#define RTA_SPACE(len) RTA_ALIGN(RTA_LENGTH(len))
+#define RTA_DATA(rta) ((void*)(((char*)(rta)) + RTA_LENGTH(0)))
+#define RTA_PAYLOAD(rta) ((int)((rta)->rta_len) - RTA_LENGTH(0))
+
+
+
+
+/******************************************************************************
+ * Definitions used in routing table administration.
+ ****/
+
+struct rtmsg
+{
+ unsigned char rtm_family;
+ unsigned char rtm_dst_len;
+ unsigned char rtm_src_len;
+ unsigned char rtm_tos;
+
+ unsigned char rtm_table; /* Routing table id */
+ unsigned char rtm_protocol; /* Routing protocol; see below */
+ unsigned char rtm_scope; /* See below */
+ unsigned char rtm_type; /* See below */
+
+ unsigned rtm_flags;
+};
+
+/* rtm_type */
+
+enum
+{
+ RTN_UNSPEC,
+ RTN_UNICAST, /* Gateway or direct route */
+ RTN_LOCAL, /* Accept locally */
+ RTN_BROADCAST, /* Accept locally as broadcast,
+ send as broadcast */
+ RTN_ANYCAST, /* Accept locally as broadcast,
+ but send as unicast */
+ RTN_MULTICAST, /* Multicast route */
+ RTN_BLACKHOLE, /* Drop */
+ RTN_UNREACHABLE, /* Destination is unreachable */
+ RTN_PROHIBIT, /* Administratively prohibited */
+ RTN_THROW, /* Not in this table */
+ RTN_NAT, /* Translate this address */
+ RTN_XRESOLVE, /* Use external resolver */
+ __RTN_MAX
+};
+
+#define RTN_MAX (__RTN_MAX - 1)
+
+
+/* rtm_protocol */
+
+#define RTPROT_UNSPEC 0
+#define RTPROT_REDIRECT 1 /* Route installed by ICMP redirects;
+ not used by current IPv4 */
+#define RTPROT_KERNEL 2 /* Route installed by kernel */
+#define RTPROT_BOOT 3 /* Route installed during boot */
+#define RTPROT_STATIC 4 /* Route installed by administrator */
+
+/* Values of protocol >= RTPROT_STATIC are not interpreted by kernel;
+ they are just passed from user and back as is.
+ It will be used by hypothetical multiple routing daemons.
+ Note that protocol values should be standardized in order to
+ avoid conflicts.
+ */
+
+#define RTPROT_GATED 8 /* Apparently, GateD */
+#define RTPROT_RA 9 /* RDISC/ND router advertisements */
+#define RTPROT_MRT 10 /* Merit MRT */
+#define RTPROT_ZEBRA 11 /* Zebra */
+#define RTPROT_BIRD 12 /* BIRD */
+#define RTPROT_DNROUTED 13 /* DECnet routing daemon */
+#define RTPROT_XORP 14 /* XORP */
+#define RTPROT_NTK 15 /* Netsukuku */
+
+/* rtm_scope
+
+ Really it is not scope, but sort of distance to the destination.
+ NOWHERE are reserved for not existing destinations, HOST is our
+ local addresses, LINK are destinations, located on directly attached
+ link and UNIVERSE is everywhere in the Universe.
+
+ Intermediate values are also possible f.e. interior routes
+ could be assigned a value between UNIVERSE and LINK.
+*/
+
+enum rt_scope_t
+{
+ RT_SCOPE_UNIVERSE=0,
+/* User defined values */
+ RT_SCOPE_SITE=200,
+ RT_SCOPE_LINK=253,
+ RT_SCOPE_HOST=254,
+ RT_SCOPE_NOWHERE=255
+};
+
+/* rtm_flags */
+
+#define RTM_F_NOTIFY 0x100 /* Notify user of route change */
+#define RTM_F_CLONED 0x200 /* This route is cloned */
+#define RTM_F_EQUALIZE 0x400 /* Multipath equalizer: NI */
+#define RTM_F_PREFIX 0x800 /* Prefix addresses */
+
+/* Reserved table identifiers */
+
+enum rt_class_t
+{
+ RT_TABLE_UNSPEC=0,
+/* User defined values */
+ RT_TABLE_DEFAULT=253,
+ RT_TABLE_MAIN=254,
+ RT_TABLE_LOCAL=255,
+ __RT_TABLE_MAX
+};
+#define RT_TABLE_MAX (__RT_TABLE_MAX - 1)
+
+
+
+/* Routing message attributes */
+
+enum rtattr_type_t
+{
+ RTA_UNSPEC,
+ RTA_DST,
+ RTA_SRC,
+ RTA_IIF,
+ RTA_OIF,
+ RTA_GATEWAY,
+ RTA_PRIORITY,
+ RTA_PREFSRC,
+ RTA_METRICS,
+ RTA_MULTIPATH,
+ RTA_PROTOINFO,
+ RTA_FLOW,
+ RTA_CACHEINFO,
+ RTA_SESSION,
+ RTA_MP_ALGO,
+ __RTA_MAX
+};
+
+#define RTA_MAX (__RTA_MAX - 1)
+
+#define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
+#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
+
+/* RTM_MULTIPATH --- array of struct rtnexthop.
+ *
+ * "struct rtnexthop" describes all necessary nexthop information,
+ * i.e. parameters of path to a destination via this nexthop.
+ *
+ * At the moment it is impossible to set different prefsrc, mtu, window
+ * and rtt for different paths from multipath.
+ */
+
+struct rtnexthop
+{
+ unsigned short rtnh_len;
+ unsigned char rtnh_flags;
+ unsigned char rtnh_hops;
+ int rtnh_ifindex;
+};
+
+/* rtnh_flags */
+
+#define RTNH_F_DEAD 1 /* Nexthop is dead (used by multipath) */
+#define RTNH_F_PERVASIVE 2 /* Do recursive gateway lookup */
+#define RTNH_F_ONLINK 4 /* Gateway is forced on link */
+
+/* Macros to handle hexthops */
+
+#define RTNH_ALIGNTO 4
+#define RTNH_ALIGN(len) ( ((len)+RTNH_ALIGNTO-1) & ~(RTNH_ALIGNTO-1) )
+#define RTNH_OK(rtnh,len) ((rtnh)->rtnh_len >= sizeof(struct rtnexthop) && \
+ ((int)(rtnh)->rtnh_len) <= (len))
+#define RTNH_NEXT(rtnh) ((struct rtnexthop*)(((char*)(rtnh)) + RTNH_ALIGN((rtnh)->rtnh_len)))
+#define RTNH_LENGTH(len) (RTNH_ALIGN(sizeof(struct rtnexthop)) + (len))
+#define RTNH_SPACE(len) RTNH_ALIGN(RTNH_LENGTH(len))
+#define RTNH_DATA(rtnh) ((struct rtattr*)(((char*)(rtnh)) + RTNH_LENGTH(0)))
+
+/* RTM_CACHEINFO */
+
+struct rta_cacheinfo
+{
+ uint32_t rta_clntref;
+ uint32_t rta_lastuse;
+ int32_t rta_expires;
+ uint32_t rta_error;
+ uint32_t rta_used;
+
+#define RTNETLINK_HAVE_PEERINFO 1
+ uint32_t rta_id;
+ uint32_t rta_ts;
+ uint32_t rta_tsage;
+};
+
+/* RTM_METRICS --- array of struct rtattr with types of RTAX_* */
+
+enum
+{
+ RTAX_UNSPEC,
+#define RTAX_UNSPEC RTAX_UNSPEC
+ RTAX_LOCK,
+#define RTAX_LOCK RTAX_LOCK
+ RTAX_MTU,
+#define RTAX_MTU RTAX_MTU
+ RTAX_WINDOW,
+#define RTAX_WINDOW RTAX_WINDOW
+ RTAX_RTT,
+#define RTAX_RTT RTAX_RTT
+ RTAX_RTTVAR,
+#define RTAX_RTTVAR RTAX_RTTVAR
+ RTAX_SSTHRESH,
+#define RTAX_SSTHRESH RTAX_SSTHRESH
+ RTAX_CWND,
+#define RTAX_CWND RTAX_CWND
+ RTAX_ADVMSS,
+#define RTAX_ADVMSS RTAX_ADVMSS
+ RTAX_REORDERING,
+#define RTAX_REORDERING RTAX_REORDERING
+ RTAX_HOPLIMIT,
+#define RTAX_HOPLIMIT RTAX_HOPLIMIT
+ RTAX_INITCWND,
+#define RTAX_INITCWND RTAX_INITCWND
+ RTAX_FEATURES,
+#define RTAX_FEATURES RTAX_FEATURES
+ __RTAX_MAX
+};
+
+#define RTAX_MAX (__RTAX_MAX - 1)
+
+#define RTAX_FEATURE_ECN 0x00000001
+#define RTAX_FEATURE_SACK 0x00000002
+#define RTAX_FEATURE_TIMESTAMP 0x00000004
+#define RTAX_FEATURE_ALLFRAG 0x00000008
+
+struct rta_session
+{
+ uint8_t proto;
+ uint8_t pad1;
+ uint16_t pad2;
+
+ union {
+ struct {
+ uint16_t sport;
+ uint16_t dport;
+ } ports;
+
+ struct {
+ uint8_t type;
+ uint8_t code;
+ uint16_t ident;
+ } icmpt;
+
+ uint32_t spi;
+ } u;
+};
+
+
+/*********************************************************
+ * Interface address.
+ ****/
+
+struct ifaddrmsg
+{
+ unsigned char ifa_family;
+ unsigned char ifa_prefixlen; /* The prefix length */
+ unsigned char ifa_flags; /* Flags */
+ unsigned char ifa_scope; /* See above */
+ int ifa_index; /* Link index */
+};
+
+enum
+{
+ IFA_UNSPEC,
+ IFA_ADDRESS,
+ IFA_LOCAL,
+ IFA_LABEL,
+ IFA_BROADCAST,
+ IFA_ANYCAST,
+ IFA_CACHEINFO,
+ IFA_MULTICAST,
+ __IFA_MAX
+};
+
+#define IFA_MAX (__IFA_MAX - 1)
+
+/* ifa_flags */
+
+#define IFA_F_SECONDARY 0x01
+#define IFA_F_TEMPORARY IFA_F_SECONDARY
+
+#define IFA_F_DEPRECATED 0x20
+#define IFA_F_TENTATIVE 0x40
+#define IFA_F_PERMANENT 0x80
+
+struct ifa_cacheinfo
+{
+ uint32_t ifa_prefered;
+ uint32_t ifa_valid;
+ uint32_t cstamp; /* created timestamp, hundredths of seconds */
+ uint32_t tstamp; /* updated timestamp, hundredths of seconds */
+};
+
+
+#define IFA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg))))
+#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg))
+
+/*
+ Important comment:
+ IFA_ADDRESS is prefix address, rather than local interface address.
+ It makes no difference for normally configured broadcast interfaces,
+ but for point-to-point IFA_ADDRESS is DESTINATION address,
+ local address is supplied in IFA_LOCAL attribute.
+ */
+
+/**************************************************************
+ * Neighbour discovery.
+ ****/
+
+struct ndmsg
+{
+ unsigned char ndm_family;
+ unsigned char ndm_pad1;
+ unsigned short ndm_pad2;
+ int ndm_ifindex; /* Link index */
+ uint16_t ndm_state;
+ uint8_t ndm_flags;
+ uint8_t ndm_type;
+};
+
+enum
+{
+ NDA_UNSPEC,
+ NDA_DST,
+ NDA_LLADDR,
+ NDA_CACHEINFO,
+ NDA_PROBES,
+ __NDA_MAX
+};
+
+#define NDA_MAX (__NDA_MAX - 1)
+
+#define NDA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg))))
+#define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg))
+
+/*
+ * Neighbor Cache Entry Flags
+ */
+
+#define NTF_PROXY 0x08 /* == ATF_PUBL */
+#define NTF_ROUTER 0x80
+
+/*
+ * Neighbor Cache Entry States.
+ */
+
+#define NUD_INCOMPLETE 0x01
+#define NUD_REACHABLE 0x02
+#define NUD_STALE 0x04
+#define NUD_DELAY 0x08
+#define NUD_PROBE 0x10
+#define NUD_FAILED 0x20
+
+/* Dummy states */
+#define NUD_NOARP 0x40
+#define NUD_PERMANENT 0x80
+#define NUD_NONE 0x00
+
+
+struct nda_cacheinfo
+{
+ uint32_t ndm_confirmed;
+ uint32_t ndm_used;
+ uint32_t ndm_updated;
+ uint32_t ndm_refcnt;
+};
+
+
+/*****************************************************************
+ * Neighbour tables specific messages.
+ *
+ * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
+ * NLM_F_DUMP flag set. Every neighbour table configuration is
+ * spread over multiple messages to avoid running into message
+ * size limits on systems with many interfaces. The first message
+ * in the sequence transports all not device specific data such as
+ * statistics, configuration, and the default parameter set.
+ * This message is followed by 0..n messages carrying device
+ * specific parameter sets.
+ * Although the ordering should be sufficient, NDTA_NAME can be
+ * used to identify sequences. The initial message can be identified
+ * by checking for NDTA_CONFIG. The device specific messages do
+ * not contain this TLV but have NDTPA_IFINDEX set to the
+ * corresponding interface index.
+ *
+ * To change neighbour table attributes, send RTM_SETNEIGHTBL
+ * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
+ * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
+ * otherwise. Device specific parameter sets can be changed by
+ * setting NDTPA_IFINDEX to the interface index of the corresponding
+ * device.
+ ****/
+
+struct ndt_stats
+{
+ uint64_t ndts_allocs;
+ uint64_t ndts_destroys;
+ uint64_t ndts_hash_grows;
+ uint64_t ndts_res_failed;
+ uint64_t ndts_lookups;
+ uint64_t ndts_hits;
+ uint64_t ndts_rcv_probes_mcast;
+ uint64_t ndts_rcv_probes_ucast;
+ uint64_t ndts_periodic_gc_runs;
+ uint64_t ndts_forced_gc_runs;
+};
+
+enum {
+ NDTPA_UNSPEC,
+ NDTPA_IFINDEX, /* uint32_t, unchangeable */
+ NDTPA_REFCNT, /* uint32_t, read-only */
+ NDTPA_REACHABLE_TIME, /* uint64_t, read-only, msecs */
+ NDTPA_BASE_REACHABLE_TIME, /* uint64_t, msecs */
+ NDTPA_RETRANS_TIME, /* uint64_t, msecs */
+ NDTPA_GC_STALETIME, /* uint64_t, msecs */
+ NDTPA_DELAY_PROBE_TIME, /* uint64_t, msecs */
+ NDTPA_QUEUE_LEN, /* uint32_t */
+ NDTPA_APP_PROBES, /* uint32_t */
+ NDTPA_UCAST_PROBES, /* uint32_t */
+ NDTPA_MCAST_PROBES, /* uint32_t */
+ NDTPA_ANYCAST_DELAY, /* uint64_t, msecs */
+ NDTPA_PROXY_DELAY, /* uint64_t, msecs */
+ NDTPA_PROXY_QLEN, /* uint32_t */
+ NDTPA_LOCKTIME, /* uint64_t, msecs */
+ __NDTPA_MAX
+};
+#define NDTPA_MAX (__NDTPA_MAX - 1)
+
+struct ndtmsg
+{
+ uint8_t ndtm_family;
+ uint8_t ndtm_pad1;
+ uint16_t ndtm_pad2;
+};
+
+struct ndt_config
+{
+ uint16_t ndtc_key_len;
+ uint16_t ndtc_entry_size;
+ uint32_t ndtc_entries;
+ uint32_t ndtc_last_flush; /* delta to now in msecs */
+ uint32_t ndtc_last_rand; /* delta to now in msecs */
+ uint32_t ndtc_hash_rnd;
+ uint32_t ndtc_hash_mask;
+ uint32_t ndtc_hash_chain_gc;
+ uint32_t ndtc_proxy_qlen;
+};
+
+enum {
+ NDTA_UNSPEC,
+ NDTA_NAME, /* char *, unchangeable */
+ NDTA_THRESH1, /* uint32_t */
+ NDTA_THRESH2, /* uint32_t */
+ NDTA_THRESH3, /* uint32_t */
+ NDTA_CONFIG, /* struct ndt_config, read-only */
+ NDTA_PARMS, /* nested TLV NDTPA_* */
+ NDTA_STATS, /* struct ndt_stats, read-only */
+ NDTA_GC_INTERVAL, /* uint64_t, msecs */
+ __NDTA_MAX
+};
+#define NDTA_MAX (__NDTA_MAX - 1)
+
+#define NDTA_RTA(r) ((struct rtattr*)(((char*)(r)) + \
+ NLMSG_ALIGN(sizeof(struct ndtmsg))))
+#define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg))
+
+
+/****
+ * General form of address family dependent message.
+ ****/
+
+struct rtgenmsg
+{
+ unsigned char rtgen_family;
+};
+
+/*****************************************************************
+ * Link layer specific messages.
+ ****/
+
+/* struct ifinfomsg
+ * passes link level specific information, not dependent
+ * on network protocol.
+ */
+
+struct ifinfomsg
+{
+ unsigned char ifi_family;
+ unsigned char __ifi_pad;
+ unsigned short ifi_type; /* ARPHRD_* */
+ int ifi_index; /* Link index */
+ unsigned ifi_flags; /* IFF_* flags */
+ unsigned ifi_change; /* IFF_* change mask */
+};
+
+/********************************************************************
+ * prefix information
+ ****/
+
+struct prefixmsg
+{
+ unsigned char prefix_family;
+ unsigned char prefix_pad1;
+ unsigned short prefix_pad2;
+ int prefix_ifindex;
+ unsigned char prefix_type;
+ unsigned char prefix_len;
+ unsigned char prefix_flags;
+ unsigned char prefix_pad3;
+};
+
+enum
+{
+ PREFIX_UNSPEC,
+ PREFIX_ADDRESS,
+ PREFIX_CACHEINFO,
+ __PREFIX_MAX
+};
+
+#define PREFIX_MAX (__PREFIX_MAX - 1)
+
+struct prefix_cacheinfo
+{
+ uint32_t preferred_time;
+ uint32_t valid_time;
+};
+
+/* The struct should be in sync with struct net_device_stats */
+struct rtnl_link_stats
+{
+ uint32_t rx_packets; /* total packets received */
+ uint32_t tx_packets; /* total packets transmitted */
+ uint32_t rx_bytes; /* total bytes received */
+ uint32_t tx_bytes; /* total bytes transmitted */
+ uint32_t rx_errors; /* bad packets received */
+ uint32_t tx_errors; /* packet transmit problems */
+ uint32_t rx_dropped; /* no space in linux buffers */
+ uint32_t tx_dropped; /* no space available in linux */
+ uint32_t multicast; /* multicast packets received */
+ uint32_t collisions;
+
+ /* detailed rx_errors: */
+ uint32_t rx_length_errors;
+ uint32_t rx_over_errors; /* receiver ring buff overflow */
+ uint32_t rx_crc_errors; /* recved pkt with crc error */
+ uint32_t rx_frame_errors; /* recv'd frame alignment error */
+ uint32_t rx_fifo_errors; /* recv'r fifo overrun */
+ uint32_t rx_missed_errors; /* receiver missed packet */
+
+ /* detailed tx_errors */
+ uint32_t tx_aborted_errors;
+ uint32_t tx_carrier_errors;
+ uint32_t tx_fifo_errors;
+ uint32_t tx_heartbeat_errors;
+ uint32_t tx_window_errors;
+
+ /* for cslip etc */
+ uint32_t rx_compressed;
+ uint32_t tx_compressed;
+};
+
+/* The struct should be in sync with struct ifmap */
+struct rtnl_link_ifmap
+{
+ uint64_t mem_start;
+ uint64_t mem_end;
+ uint64_t base_addr;
+ uint16_t irq;
+ uint8_t dma;
+ uint8_t port;
+};
+
+enum
+{
+ IFLA_UNSPEC,
+ IFLA_ADDRESS,
+ IFLA_BROADCAST,
+ IFLA_IFNAME,
+ IFLA_MTU,
+ IFLA_LINK,
+ IFLA_QDISC,
+ IFLA_STATS,
+ IFLA_COST,
+#define IFLA_COST IFLA_COST
+ IFLA_PRIORITY,
+#define IFLA_PRIORITY IFLA_PRIORITY
+ IFLA_MASTER,
+#define IFLA_MASTER IFLA_MASTER
+ IFLA_WIRELESS, /* Wireless Extension event - see wireless.h */
+#define IFLA_WIRELESS IFLA_WIRELESS
+ IFLA_PROTINFO, /* Protocol specific information for a link */
+#define IFLA_PROTINFO IFLA_PROTINFO
+ IFLA_TXQLEN,
+#define IFLA_TXQLEN IFLA_TXQLEN
+ IFLA_MAP,
+#define IFLA_MAP IFLA_MAP
+ IFLA_WEIGHT,
+#define IFLA_WEIGHT IFLA_WEIGHT
+ IFLA_OPERSTATE,
+ IFLA_LINKMODE,
+ __IFLA_MAX
+};
+
+
+#define IFLA_MAX (__IFLA_MAX - 1)
+
+#define IFLA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
+#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
+
+/* ifi_flags.
+
+ IFF_* flags.
+
+ The only change is:
+ IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are
+ more not changeable by user. They describe link media
+ characteristics and set by device driver.
+
+ Comments:
+ - Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid
+ - If neither of these three flags are set;
+ the interface is NBMA.
+
+ - IFF_MULTICAST does not mean anything special:
+ multicasts can be used on all not-NBMA links.
+ IFF_MULTICAST means that this media uses special encapsulation
+ for multicast frames. Apparently, all IFF_POINTOPOINT and
+ IFF_BROADCAST devices are able to use multicasts too.
+ */
+
+/* IFLA_LINK.
+ For usual devices it is equal ifi_index.
+ If it is a "virtual interface" (f.e. tunnel), ifi_link
+ can point to real physical interface (f.e. for bandwidth calculations),
+ or maybe 0, what means, that real media is unknown (usual
+ for IPIP tunnels, when route to endpoint is allowed to change)
+ */
+
+/* Subtype attributes for IFLA_PROTINFO */
+enum
+{
+ IFLA_INET6_UNSPEC,
+ IFLA_INET6_FLAGS, /* link flags */
+ IFLA_INET6_CONF, /* sysctl parameters */
+ IFLA_INET6_STATS, /* statistics */
+ IFLA_INET6_MCAST, /* MC things. What of them? */
+ IFLA_INET6_CACHEINFO, /* time values and max reasm size */
+ __IFLA_INET6_MAX
+};
+
+#define IFLA_INET6_MAX (__IFLA_INET6_MAX - 1)
+
+struct ifla_cacheinfo
+{
+ uint32_t max_reasm_len;
+ uint32_t tstamp; /* ipv6InterfaceTable updated timestamp */
+ uint32_t reachable_time;
+ uint32_t retrans_time;
+};
+
+/*****************************************************************
+ * Traffic control messages.
+ ****/
+
+struct tcmsg
+{
+ unsigned char tcm_family;
+ unsigned char tcm__pad1;
+ unsigned short tcm__pad2;
+ int tcm_ifindex;
+ uint32_t tcm_handle;
+ uint32_t tcm_parent;
+ uint32_t tcm_info;
+};
+
+enum
+{
+ TCA_UNSPEC,
+ TCA_KIND,
+ TCA_OPTIONS,
+ TCA_STATS,
+ TCA_XSTATS,
+ TCA_RATE,
+ TCA_FCNT,
+ TCA_STATS2,
+ __TCA_MAX
+};
+
+#define TCA_MAX (__TCA_MAX - 1)
+
+#define TCA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcmsg))))
+#define TCA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcmsg))
+
+#ifndef __KERNEL__
+/* RTnetlink multicast groups - backwards compatibility for userspace */
+#define RTMGRP_LINK 1
+#define RTMGRP_NOTIFY 2
+#define RTMGRP_NEIGH 4
+#define RTMGRP_TC 8
+
+#define RTMGRP_IPV4_IFADDR 0x10
+#define RTMGRP_IPV4_MROUTE 0x20
+#define RTMGRP_IPV4_ROUTE 0x40
+#define RTMGRP_IPV4_RULE 0x80
+
+#define RTMGRP_IPV6_IFADDR 0x100
+#define RTMGRP_IPV6_MROUTE 0x200
+#define RTMGRP_IPV6_ROUTE 0x400
+#define RTMGRP_IPV6_IFINFO 0x800
+
+#define RTMGRP_DECnet_IFADDR 0x1000
+#define RTMGRP_DECnet_ROUTE 0x4000
+
+#define RTMGRP_IPV6_PREFIX 0x20000
+#endif
+
+/* RTnetlink multicast groups */
+enum rtnetlink_groups {
+ RTNLGRP_NONE,
+#define RTNLGRP_NONE RTNLGRP_NONE
+ RTNLGRP_LINK,
+#define RTNLGRP_LINK RTNLGRP_LINK
+ RTNLGRP_NOTIFY,
+#define RTNLGRP_NOTIFY RTNLGRP_NOTIFY
+ RTNLGRP_NEIGH,
+#define RTNLGRP_NEIGH RTNLGRP_NEIGH
+ RTNLGRP_TC,
+#define RTNLGRP_TC RTNLGRP_TC
+ RTNLGRP_IPV4_IFADDR,
+#define RTNLGRP_IPV4_IFADDR RTNLGRP_IPV4_IFADDR
+ RTNLGRP_IPV4_MROUTE,
+#define RTNLGRP_IPV4_MROUTE RTNLGRP_IPV4_MROUTE
+ RTNLGRP_IPV4_ROUTE,
+#define RTNLGRP_IPV4_ROUTE RTNLGRP_IPV4_ROUTE
+ RTNLGRP_IPV4_RULE,
+#define RTNLGRP_IPV4_RULE RTNLGRP_IPV4_RULE
+ RTNLGRP_IPV6_IFADDR,
+#define RTNLGRP_IPV6_IFADDR RTNLGRP_IPV6_IFADDR
+ RTNLGRP_IPV6_MROUTE,
+#define RTNLGRP_IPV6_MROUTE RTNLGRP_IPV6_MROUTE
+ RTNLGRP_IPV6_ROUTE,
+#define RTNLGRP_IPV6_ROUTE RTNLGRP_IPV6_ROUTE
+ RTNLGRP_IPV6_IFINFO,
+#define RTNLGRP_IPV6_IFINFO RTNLGRP_IPV6_IFINFO
+ RTNLGRP_DECnet_IFADDR,
+#define RTNLGRP_DECnet_IFADDR RTNLGRP_DECnet_IFADDR
+ RTNLGRP_NOP2,
+ RTNLGRP_DECnet_ROUTE,
+#define RTNLGRP_DECnet_ROUTE RTNLGRP_DECnet_ROUTE
+ RTNLGRP_NOP3,
+ RTNLGRP_NOP4,
+ RTNLGRP_IPV6_PREFIX,
+#define RTNLGRP_IPV6_PREFIX RTNLGRP_IPV6_PREFIX
+ __RTNLGRP_MAX
+};
+#define RTNLGRP_MAX (__RTNLGRP_MAX - 1)
+
+/* TC action piece */
+struct tcamsg
+{
+ unsigned char tca_family;
+ unsigned char tca__pad1;
+ unsigned short tca__pad2;
+};
+#define TA_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct tcamsg))))
+#define TA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct tcamsg))
+#define TCA_ACT_TAB 1 /* attr type must be >=1 */
+#define TCAA_MAX 1
+
+/* End of information exported to user level */
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <linux/mutex.h>
+
+extern size_t rtattr_strlcpy(char *dest, const struct rtattr *rta, size_t size);
+static __inline__ int rtattr_strcmp(const struct rtattr *rta, const char *str)
+{
+ int len = strlen(str) + 1;
+ return len > rta->rta_len || memcmp(RTA_DATA(rta), str, len);
+}
+
+extern int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len);
+
+#define rtattr_parse_nested(tb, max, rta) \
+ rtattr_parse((tb), (max), RTA_DATA((rta)), RTA_PAYLOAD((rta)))
+
+extern struct sock *rtnl;
+
+struct rtnetlink_link
+{
+ int (*doit)(struct sk_buff *, struct nlmsghdr*, void *attr);
+ int (*dumpit)(struct sk_buff *, struct netlink_callback *cb);
+};
+
+extern struct rtnetlink_link * rtnetlink_links[NPROTO];
+extern int rtnetlink_send(struct sk_buff *skb, uint32_t pid, uint32_t group, int echo);
+extern int rtnetlink_put_metrics(struct sk_buff *skb, uint32_t *metrics);
+
+extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const void *data);
+
+#define RTA_PUT(skb, attrtype, attrlen, data) \
+({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \
+ goto rtattr_failure; \
+ __rta_fill(skb, attrtype, attrlen, data); })
+
+#define RTA_APPEND(skb, attrlen, data) \
+({ if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \
+ goto rtattr_failure; \
+ memcpy(skb_put(skb, attrlen), data, attrlen); })
+
+#define RTA_PUT_NOHDR(skb, attrlen, data) \
+({ RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \
+ memset(skb->tail - (RTA_ALIGN(attrlen) - attrlen), 0, \
+ RTA_ALIGN(attrlen) - attrlen); })
+
+#define RTA_PUT_U8(skb, attrtype, value) \
+({ uint8_t _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(uint8_t), &_tmp); })
+
+#define RTA_PUT_U16(skb, attrtype, value) \
+({ uint16_t _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(uint16_t), &_tmp); })
+
+#define RTA_PUT_U32(skb, attrtype, value) \
+({ uint32_t _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(uint32_t), &_tmp); })
+
+#define RTA_PUT_U64(skb, attrtype, value) \
+({ uint64_t _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(uint64_t), &_tmp); })
+
+#define RTA_PUT_SECS(skb, attrtype, value) \
+ RTA_PUT_U64(skb, attrtype, (value) / HZ)
+
+#define RTA_PUT_MSECS(skb, attrtype, value) \
+ RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value))
+
+#define RTA_PUT_STRING(skb, attrtype, value) \
+ RTA_PUT(skb, attrtype, strlen(value) + 1, value)
+
+#define RTA_PUT_FLAG(skb, attrtype) \
+ RTA_PUT(skb, attrtype, 0, NULL);
+
+#define RTA_NEST(skb, type) \
+({ struct rtattr *__start = (struct rtattr *) (skb)->tail; \
+ RTA_PUT(skb, type, 0, NULL); \
+ __start; })
+
+#define RTA_NEST_END(skb, start) \
+({ (start)->rta_len = ((skb)->tail - (unsigned char *) (start)); \
+ (skb)->len; })
+
+#define RTA_NEST_CANCEL(skb, start) \
+({ if (start) \
+ skb_trim(skb, (unsigned char *) (start) - (skb)->data); \
+ -1; })
+
+#define RTA_GET_U8(rta) \
+({ if (!rta || RTA_PAYLOAD(rta) < sizeof(uint8_t)) \
+ goto rtattr_failure; \
+ *(uint8_t *) RTA_DATA(rta); })
+
+#define RTA_GET_U16(rta) \
+({ if (!rta || RTA_PAYLOAD(rta) < sizeof(uint16_t)) \
+ goto rtattr_failure; \
+ *(uint16_t *) RTA_DATA(rta); })
+
+#define RTA_GET_U32(rta) \
+({ if (!rta || RTA_PAYLOAD(rta) < sizeof(uint32_t)) \
+ goto rtattr_failure; \
+ *(uint32_t *) RTA_DATA(rta); })
+
+#define RTA_GET_U64(rta) \
+({ uint64_t _tmp; \
+ if (!rta || RTA_PAYLOAD(rta) < sizeof(uint64_t)) \
+ goto rtattr_failure; \
+ memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \
+ _tmp; })
+
+#define RTA_GET_FLAG(rta) (!!(rta))
+
+#define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ)
+#define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta)))
+
+static __inline__ struct rtattr *
+__rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
+{
+ struct rtattr *rta;
+ int size = RTA_LENGTH(attrlen);
+
+ rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size));
+ rta->rta_type = attrtype;
+ rta->rta_len = size;
+ memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size);
+ return rta;
+}
+
+#define __RTA_PUT(skb, attrtype, attrlen) \
+({ if (unlikely(skb_tailroom(skb) < (int)RTA_SPACE(attrlen))) \
+ goto rtattr_failure; \
+ __rta_reserve(skb, attrtype, attrlen); })
+
+extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);
+
+/* RTNL is used as a global lock for all changes to network configuration */
+extern void rtnl_lock(void);
+extern void rtnl_unlock(void);
+extern int rtnl_trylock(void);
+
+extern void rtnetlink_init(void);
+extern void __rtnl_unlock(void);
+
+#define ASSERT_RTNL() do { \
+ if (unlikely(rtnl_trylock())) { \
+ rtnl_unlock(); \
+ printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \
+ __FILE__, __LINE__); \
+ dump_stack(); \
+ } \
+} while(0)
+
+#define BUG_TRAP(x) do { \
+ if (unlikely(!(x))) { \
+ printk(KERN_ERR "KERNEL: assertion (%s) failed at %s (%d)\n", \
+ #x, __FILE__ , __LINE__); \
+ } \
+} while(0)
+
+#endif /* __KERNEL__ */
+
+
+#endif /* __LINUX_RTNETLINK_H */
projects / strongswan.git / commitdiff