/* Types of messages */
-#define RTM_BASE 0x10
-
-#define RTM_NEWLINK (RTM_BASE+0)
-#define RTM_DELLINK (RTM_BASE+1)
-#define RTM_GETLINK (RTM_BASE+2)
-#define RTM_SETLINK (RTM_BASE+3)
-
-#define RTM_NEWADDR (RTM_BASE+4)
-#define RTM_DELADDR (RTM_BASE+5)
-#define RTM_GETADDR (RTM_BASE+6)
-
-#define RTM_NEWROUTE (RTM_BASE+8)
-#define RTM_DELROUTE (RTM_BASE+9)
-#define RTM_GETROUTE (RTM_BASE+10)
-
-#define RTM_NEWNEIGH (RTM_BASE+12)
-#define RTM_DELNEIGH (RTM_BASE+13)
-#define RTM_GETNEIGH (RTM_BASE+14)
-
-#define RTM_NEWRULE (RTM_BASE+16)
-#define RTM_DELRULE (RTM_BASE+17)
-#define RTM_GETRULE (RTM_BASE+18)
-
-#define RTM_NEWQDISC (RTM_BASE+20)
-#define RTM_DELQDISC (RTM_BASE+21)
-#define RTM_GETQDISC (RTM_BASE+22)
-
-#define RTM_NEWTCLASS (RTM_BASE+24)
-#define RTM_DELTCLASS (RTM_BASE+25)
-#define RTM_GETTCLASS (RTM_BASE+26)
-
-#define RTM_NEWTFILTER (RTM_BASE+28)
-#define RTM_DELTFILTER (RTM_BASE+29)
-#define RTM_GETTFILTER (RTM_BASE+30)
-
-#define RTM_NEWPREFIX (RTM_BASE+36)
-#define RTM_GETPREFIX (RTM_BASE+38)
-
-#define RTM_GETMULTICAST (RTM_BASE+42)
-
-#define RTM_GETANYCAST (RTM_BASE+46)
+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_MAX (RTM_BASE+47)
+#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.
#define RTA_ALIGNTO 4
#define RTA_ALIGN(len) ( ((len)+RTA_ALIGNTO-1) & ~(RTA_ALIGNTO-1) )
-#define RTA_OK(rta,len) ((len) > 0 && (rta)->rta_len >= sizeof(struct rtattr) && \
+#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)))
RTN_THROW, /* Not in this table */
RTN_NAT, /* Translate this address */
RTN_XRESOLVE, /* Use external resolver */
+ __RTN_MAX
};
-#define RTN_MAX RTN_XRESOLVE
+#define RTN_MAX (__RTN_MAX - 1)
/* rtm_protocol */
#define RTPROT_BIRD 12 /* BIRD */
#define RTPROT_DNROUTED 13 /* DECnet routing daemon */
#define RTPROT_XORP 14 /* XORP */
+#define RTPROT_NTK 15 /* Netsukuku */
/* rtm_scope
/* User defined values */
RT_TABLE_DEFAULT=253,
RT_TABLE_MAIN=254,
- RT_TABLE_LOCAL=255
+ RT_TABLE_LOCAL=255,
+ __RT_TABLE_MAX
};
-#define RT_TABLE_MAX RT_TABLE_LOCAL
+#define RT_TABLE_MAX (__RT_TABLE_MAX - 1)
RTA_FLOW,
RTA_CACHEINFO,
RTA_SESSION,
+ RTA_MP_ALGO,
+ __RTA_MAX
};
-#define RTA_MAX RTA_SESSION
+#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))
#define RTAX_INITCWND RTAX_INITCWND
RTAX_FEATURES,
#define RTAX_FEATURES RTAX_FEATURES
+ __RTAX_MAX
};
-#define RTAX_MAX RTAX_FEATURES
+#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
{
__u8 proto;
+ __u8 pad1;
+ __u16 pad2;
union {
struct {
IFA_BROADCAST,
IFA_ANYCAST,
IFA_CACHEINFO,
- IFA_MULTICAST
+ IFA_MULTICAST,
+ __IFA_MAX
};
-#define IFA_MAX IFA_CACHEINFO
+#define IFA_MAX (__IFA_MAX - 1)
/* ifa_flags */
NDA_UNSPEC,
NDA_DST,
NDA_LLADDR,
- NDA_CACHEINFO
+ NDA_CACHEINFO,
+ NDA_PROBES,
+ __NDA_MAX
};
-#define NDA_MAX NDA_CACHEINFO
+#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))
__u32 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
+{
+ __u64 ndts_allocs;
+ __u64 ndts_destroys;
+ __u64 ndts_hash_grows;
+ __u64 ndts_res_failed;
+ __u64 ndts_lookups;
+ __u64 ndts_hits;
+ __u64 ndts_rcv_probes_mcast;
+ __u64 ndts_rcv_probes_ucast;
+ __u64 ndts_periodic_gc_runs;
+ __u64 ndts_forced_gc_runs;
+};
+
+enum {
+ NDTPA_UNSPEC,
+ NDTPA_IFINDEX, /* u32, unchangeable */
+ NDTPA_REFCNT, /* u32, read-only */
+ NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */
+ NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */
+ NDTPA_RETRANS_TIME, /* u64, msecs */
+ NDTPA_GC_STALETIME, /* u64, msecs */
+ NDTPA_DELAY_PROBE_TIME, /* u64, msecs */
+ NDTPA_QUEUE_LEN, /* u32 */
+ NDTPA_APP_PROBES, /* u32 */
+ NDTPA_UCAST_PROBES, /* u32 */
+ NDTPA_MCAST_PROBES, /* u32 */
+ NDTPA_ANYCAST_DELAY, /* u64, msecs */
+ NDTPA_PROXY_DELAY, /* u64, msecs */
+ NDTPA_PROXY_QLEN, /* u32 */
+ NDTPA_LOCKTIME, /* u64, msecs */
+ __NDTPA_MAX
+};
+#define NDTPA_MAX (__NDTPA_MAX - 1)
+
+struct ndtmsg
+{
+ __u8 ndtm_family;
+ __u8 ndtm_pad1;
+ __u16 ndtm_pad2;
+};
+
+struct ndt_config
+{
+ __u16 ndtc_key_len;
+ __u16 ndtc_entry_size;
+ __u32 ndtc_entries;
+ __u32 ndtc_last_flush; /* delta to now in msecs */
+ __u32 ndtc_last_rand; /* delta to now in msecs */
+ __u32 ndtc_hash_rnd;
+ __u32 ndtc_hash_mask;
+ __u32 ndtc_hash_chain_gc;
+ __u32 ndtc_proxy_qlen;
+};
+
+enum {
+ NDTA_UNSPEC,
+ NDTA_NAME, /* char *, unchangeable */
+ NDTA_THRESH1, /* u32 */
+ NDTA_THRESH2, /* u32 */
+ NDTA_THRESH3, /* u32 */
+ NDTA_CONFIG, /* struct ndt_config, read-only */
+ NDTA_PARMS, /* nested TLV NDTPA_* */
+ NDTA_STATS, /* struct ndt_stats, read-only */
+ NDTA_GC_INTERVAL, /* u64, 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 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_CACHEINFO
+#define PREFIX_MAX (__PREFIX_MAX - 1)
struct prefix_cacheinfo
{
__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,
#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_PROTINFO
+#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))
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 retrans_time;
};
-#define IFLA_INET6_MAX IFLA_INET6_CACHEINFO
-
/*****************************************************************
* Traffic control messages.
****/
TCA_STATS,
TCA_XSTATS,
TCA_RATE,
+ TCA_FCNT,
+ TCA_STATS2,
+ __TCA_MAX
};
-#define TCA_MAX TCA_RATE
+#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))
-
-/* SUMMARY: maximal rtattr understood by kernel */
-
-#define RTATTR_MAX RTA_MAX
-
-/* RTnetlink multicast groups */
-
+#ifndef __KERNEL__
+/* RTnetlink multicast groups - backwards compatibility for userspace */
#define RTMGRP_LINK 1
#define RTMGRP_NOTIFY 2
#define RTMGRP_NEIGH 4
#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_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;
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
};
extern struct rtnetlink_link * rtnetlink_links[NPROTO];
-extern int rtnetlink_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb);
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);
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) \
+({ u8 _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(u8), &_tmp); })
+
+#define RTA_PUT_U16(skb, attrtype, value) \
+({ u16 _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(u16), &_tmp); })
+
+#define RTA_PUT_U32(skb, attrtype, value) \
+({ u32 _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); })
+
+#define RTA_PUT_U64(skb, attrtype, value) \
+({ u64 _tmp = (value); \
+ RTA_PUT(skb, attrtype, sizeof(u64), &_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(u8)) \
+ goto rtattr_failure; \
+ *(u8 *) RTA_DATA(rta); })
+
+#define RTA_GET_U16(rta) \
+({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u16)) \
+ goto rtattr_failure; \
+ *(u16 *) RTA_DATA(rta); })
+
+#define RTA_GET_U32(rta) \
+({ if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \
+ goto rtattr_failure; \
+ *(u32 *) RTA_DATA(rta); })
+
+#define RTA_GET_U64(rta) \
+({ u64 _tmp; \
+ if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \
+ 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)
{
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;
}
extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);
-extern struct semaphore rtnl_sem;
-
-#define rtnl_exlock() do { } while(0)
-#define rtnl_exunlock() do { } while(0)
-#define rtnl_exlock_nowait() (0)
-
-#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)
-
+/* 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(down_trylock(&rtnl_sem) == 0)) { \
- up(&rtnl_sem); \
+ if (unlikely(rtnl_trylock())) { \
+ rtnl_unlock(); \
printk(KERN_ERR "RTNL: assertion failed at %s (%d)\n", \
__FILE__, __LINE__); \
dump_stack(); \
git://git.onelab.eu / linux-2.6.git / blobdiff