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- #ifndef __LINUX_RTNETLINK_H
- #define __LINUX_RTNETLINK_H
-
- #include <linux/netlink.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_MAX,
- #define RTM_MAX RTM_MAX
- };
-
- /*
- 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 */
-
- /* 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_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
- {
- __u32 rta_clntref;
- __u32 rta_lastuse;
- __s32 rta_expires;
- __u32 rta_error;
- __u32 rta_used;
-
- #define RTNETLINK_HAVE_PEERINFO 1
- __u32 rta_id;
- __u32 rta_ts;
- __u32 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
-
- struct rta_session
- {
- __u8 proto;
-
- union {
- struct {
- __u16 sport;
- __u16 dport;
- } ports;
-
- struct {
- __u8 type;
- __u8 code;
- __u16 ident;
- } icmpt;
-
- __u32 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
- {
- __u32 ifa_prefered;
- __u32 ifa_valid;
- __u32 cstamp; /* created timestamp, hundredths of seconds */
- __u32 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 */
- __u16 ndm_state;
- __u8 ndm_flags;
- __u8 ndm_type;
- };
-
- enum
- {
- NDA_UNSPEC,
- NDA_DST,
- NDA_LLADDR,
- NDA_CACHEINFO,
- __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
- {
- __u32 ndm_confirmed;
- __u32 ndm_used;
- __u32 ndm_updated;
- __u32 ndm_refcnt;
- };
-
- /****
- * 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;
- int prefix_ifindex;
- unsigned char prefix_type;
- unsigned char prefix_len;
- unsigned char prefix_flags;
- };
-
- enum
- {
- PREFIX_UNSPEC,
- PREFIX_ADDRESS,
- PREFIX_CACHEINFO,
- __PREFIX_MAX
- };
-
- #define PREFIX_MAX (__PREFIX_MAX - 1)
-
- struct prefix_cacheinfo
- {
- __u32 preferred_time;
- __u32 valid_time;
- };
-
- /* The struct should be in sync with struct net_device_stats */
- struct rtnl_link_stats
- {
- __u32 rx_packets; /* total packets received */
- __u32 tx_packets; /* total packets transmitted */
- __u32 rx_bytes; /* total bytes received */
- __u32 tx_bytes; /* total bytes transmitted */
- __u32 rx_errors; /* bad packets received */
- __u32 tx_errors; /* packet transmit problems */
- __u32 rx_dropped; /* no space in linux buffers */
- __u32 tx_dropped; /* no space available in linux */
- __u32 multicast; /* multicast packets received */
- __u32 collisions;
-
- /* detailed rx_errors: */
- __u32 rx_length_errors;
- __u32 rx_over_errors; /* receiver ring buff overflow */
- __u32 rx_crc_errors; /* recved pkt with crc error */
- __u32 rx_frame_errors; /* recv'd frame alignment error */
- __u32 rx_fifo_errors; /* recv'r fifo overrun */
- __u32 rx_missed_errors; /* receiver missed packet */
-
- /* detailed tx_errors */
- __u32 tx_aborted_errors;
- __u32 tx_carrier_errors;
- __u32 tx_fifo_errors;
- __u32 tx_heartbeat_errors;
- __u32 tx_window_errors;
-
- /* for cslip etc */
- __u32 rx_compressed;
- __u32 tx_compressed;
- };
-
- /* The struct should be in sync with struct ifmap */
- struct rtnl_link_ifmap
- {
- __u64 mem_start;
- __u64 mem_end;
- __u64 base_addr;
- __u16 irq;
- __u8 dma;
- __u8 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_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
- {
- __u32 max_reasm_len;
- __u32 tstamp; /* ipv6InterfaceTable updated timestamp */
- __u32 reachable_time;
- __u32 retrans_time;
- };
-
- /*****************************************************************
- * Traffic control messages.
- ****/
-
- struct tcmsg
- {
- unsigned char tcm_family;
- unsigned char tcm__pad1;
- unsigned short tcm__pad2;
- int tcm_ifindex;
- __u32 tcm_handle;
- __u32 tcm_parent;
- __u32 tcm_info;
- };
-
- enum
- {
- TCA_UNSPEC,
- TCA_KIND,
- TCA_OPTIONS,
- TCA_STATS,
- TCA_XSTATS,
- TCA_RATE,
- TCA_FCNT,
- TCA_STATS2,
- TCA_ACT_STATS,
- __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))
-
-
- /* RTnetlink multicast groups */
-
- #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_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
-
- /* 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>
-
- 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, u32 pid, u32 group, int echo);
- extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *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); })
-
- 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;
- 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);
-
- extern struct semaphore rtnl_sem;
-
- #define rtnl_shlock() down(&rtnl_sem)
- #define rtnl_shlock_nowait() down_trylock(&rtnl_sem)
-
- #define rtnl_shunlock() do { up(&rtnl_sem); \
- if (rtnl && rtnl->sk_receive_queue.qlen) \
- rtnl->sk_data_ready(rtnl, 0); \
- } while(0)
-
- extern void rtnl_lock(void);
- extern int rtnl_lock_interruptible(void);
- extern void rtnl_unlock(void);
- extern void rtnetlink_init(void);
-
- #define ASSERT_RTNL() do { \
- if (unlikely(down_trylock(&rtnl_sem) == 0)) { \
- up(&rtnl_sem); \
- 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 */
-