diff options
-rw-r--r-- | include/net/neighbour.h | 48 | ||||
-rw-r--r-- | net/802/hippi.c | 4 | ||||
-rw-r--r-- | net/core/neighbour.c | 327 | ||||
-rw-r--r-- | net/decnet/dn_neigh.c | 28 | ||||
-rw-r--r-- | net/ipv4/arp.c | 33 | ||||
-rw-r--r-- | net/ipv6/addrconf.c | 12 | ||||
-rw-r--r-- | net/ipv6/ndisc.c | 43 |
7 files changed, 238 insertions, 257 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 536501a3e58..4cb5478e2f6 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -37,6 +37,32 @@ struct neighbour; +enum { + NEIGH_VAR_MCAST_PROBES, + NEIGH_VAR_UCAST_PROBES, + NEIGH_VAR_APP_PROBES, + NEIGH_VAR_RETRANS_TIME, + NEIGH_VAR_BASE_REACHABLE_TIME, + NEIGH_VAR_DELAY_PROBE_TIME, + NEIGH_VAR_GC_STALETIME, + NEIGH_VAR_QUEUE_LEN_BYTES, + NEIGH_VAR_PROXY_QLEN, + NEIGH_VAR_ANYCAST_DELAY, + NEIGH_VAR_PROXY_DELAY, + NEIGH_VAR_LOCKTIME, +#define NEIGH_VAR_DATA_MAX (NEIGH_VAR_LOCKTIME + 1) + /* Following are used as a second way to access one of the above */ + NEIGH_VAR_QUEUE_LEN, /* same data as NEIGH_VAR_QUEUE_LEN_BYTES */ + NEIGH_VAR_RETRANS_TIME_MS, /* same data as NEIGH_VAR_RETRANS_TIME */ + NEIGH_VAR_BASE_REACHABLE_TIME_MS, /* same data as NEIGH_VAR_BASE_REACHABLE_TIME */ + /* Following are used by "default" only */ + NEIGH_VAR_GC_INTERVAL, + NEIGH_VAR_GC_THRESH1, + NEIGH_VAR_GC_THRESH2, + NEIGH_VAR_GC_THRESH3, + NEIGH_VAR_MAX +}; + struct neigh_parms { #ifdef CONFIG_NET_NS struct net *net; @@ -53,22 +79,18 @@ struct neigh_parms { atomic_t refcnt; struct rcu_head rcu_head; - int base_reachable_time; - int retrans_time; - int gc_staletime; int reachable_time; - int delay_probe_time; - - int queue_len_bytes; - int ucast_probes; - int app_probes; - int mcast_probes; - int anycast_delay; - int proxy_delay; - int proxy_qlen; - int locktime; + int data[NEIGH_VAR_DATA_MAX]; }; +static inline void neigh_var_set(struct neigh_parms *p, int index, int val) +{ + p->data[index] = val; +} + +#define NEIGH_VAR(p, attr) ((p)->data[NEIGH_VAR_ ## attr]) +#define NEIGH_VAR_SET(p, attr, val) neigh_var_set(p, NEIGH_VAR_ ## attr, val) + struct neigh_statistics { unsigned long allocs; /* number of allocated neighs */ unsigned long destroys; /* number of destroyed neighs */ diff --git a/net/802/hippi.c b/net/802/hippi.c index 51a1f530417..a97a3bde77b 100644 --- a/net/802/hippi.c +++ b/net/802/hippi.c @@ -172,14 +172,14 @@ EXPORT_SYMBOL(hippi_mac_addr); int hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p) { /* Never send broadcast/multicast ARP messages */ - p->mcast_probes = 0; + NEIGH_VAR_SET(p, MCAST_PROBES, 0); /* In IPv6 unicast probes are valid even on NBMA, * because they are encapsulated in normal IPv6 protocol. * Should be a generic flag. */ if (p->tbl->family != AF_INET6) - p->ucast_probes = 0; + NEIGH_VAR_SET(p, UCAST_PROBES, 0); return 0; } EXPORT_SYMBOL(hippi_neigh_setup_dev); diff --git a/net/core/neighbour.c b/net/core/neighbour.c index ca15f32821f..742fa10d437 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -497,7 +497,7 @@ struct neighbour *__neigh_create(struct neigh_table *tbl, const void *pkey, goto out_neigh_release; } - n->confirmed = jiffies - (n->parms->base_reachable_time << 1); + n->confirmed = jiffies - (NEIGH_VAR(n->parms, BASE_REACHABLE_TIME) << 1); write_lock_bh(&tbl->lock); nht = rcu_dereference_protected(tbl->nht, @@ -776,7 +776,7 @@ static void neigh_periodic_work(struct work_struct *work) tbl->last_rand = jiffies; for (p = &tbl->parms; p; p = p->next) p->reachable_time = - neigh_rand_reach_time(p->base_reachable_time); + neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME)); } for (i = 0 ; i < (1 << nht->hash_shift); i++) { @@ -799,7 +799,7 @@ static void neigh_periodic_work(struct work_struct *work) if (atomic_read(&n->refcnt) == 1 && (state == NUD_FAILED || - time_after(jiffies, n->used + n->parms->gc_staletime))) { + time_after(jiffies, n->used + NEIGH_VAR(n->parms, GC_STALETIME)))) { *np = n->next; n->dead = 1; write_unlock(&n->lock); @@ -822,12 +822,12 @@ next_elt: lockdep_is_held(&tbl->lock)); } out: - /* Cycle through all hash buckets every base_reachable_time/2 ticks. - * ARP entry timeouts range from 1/2 base_reachable_time to 3/2 - * base_reachable_time. + /* Cycle through all hash buckets every BASE_REACHABLE_TIME/2 ticks. + * ARP entry timeouts range from 1/2 BASE_REACHABLE_TIME to 3/2 + * BASE_REACHABLE_TIME. */ schedule_delayed_work(&tbl->gc_work, - tbl->parms.base_reachable_time >> 1); + NEIGH_VAR(&tbl->parms, BASE_REACHABLE_TIME) >> 1); write_unlock_bh(&tbl->lock); } @@ -835,8 +835,9 @@ static __inline__ int neigh_max_probes(struct neighbour *n) { struct neigh_parms *p = n->parms; return (n->nud_state & NUD_PROBE) ? - p->ucast_probes : - p->ucast_probes + p->app_probes + p->mcast_probes; + NEIGH_VAR(p, UCAST_PROBES) : + NEIGH_VAR(p, UCAST_PROBES) + NEIGH_VAR(p, APP_PROBES) + + NEIGH_VAR(p, MCAST_PROBES); } static void neigh_invalidate(struct neighbour *neigh) @@ -901,12 +902,13 @@ static void neigh_timer_handler(unsigned long arg) neigh_dbg(2, "neigh %p is still alive\n", neigh); next = neigh->confirmed + neigh->parms->reachable_time; } else if (time_before_eq(now, - neigh->used + neigh->parms->delay_probe_time)) { + neigh->used + + NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME))) { neigh_dbg(2, "neigh %p is delayed\n", neigh); neigh->nud_state = NUD_DELAY; neigh->updated = jiffies; neigh_suspect(neigh); - next = now + neigh->parms->delay_probe_time; + next = now + NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME); } else { neigh_dbg(2, "neigh %p is suspected\n", neigh); neigh->nud_state = NUD_STALE; @@ -916,7 +918,8 @@ static void neigh_timer_handler(unsigned long arg) } } else if (state & NUD_DELAY) { if (time_before_eq(now, - neigh->confirmed + neigh->parms->delay_probe_time)) { + neigh->confirmed + + NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME))) { neigh_dbg(2, "neigh %p is now reachable\n", neigh); neigh->nud_state = NUD_REACHABLE; neigh->updated = jiffies; @@ -928,11 +931,11 @@ static void neigh_timer_handler(unsigned long arg) neigh->nud_state = NUD_PROBE; neigh->updated = jiffies; atomic_set(&neigh->probes, 0); - next = now + neigh->parms->retrans_time; + next = now + NEIGH_VAR(neigh->parms, RETRANS_TIME); } } else { /* NUD_PROBE|NUD_INCOMPLETE */ - next = now + neigh->parms->retrans_time; + next = now + NEIGH_VAR(neigh->parms, RETRANS_TIME); } if ((neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) && @@ -973,13 +976,16 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb) goto out_unlock_bh; if (!(neigh->nud_state & (NUD_STALE | NUD_INCOMPLETE))) { - if (neigh->parms->mcast_probes + neigh->parms->app_probes) { + if (NEIGH_VAR(neigh->parms, MCAST_PROBES) + + NEIGH_VAR(neigh->parms, APP_PROBES)) { unsigned long next, now = jiffies; - atomic_set(&neigh->probes, neigh->parms->ucast_probes); + atomic_set(&neigh->probes, + NEIGH_VAR(neigh->parms, UCAST_PROBES)); neigh->nud_state = NUD_INCOMPLETE; neigh->updated = now; - next = now + max(neigh->parms->retrans_time, HZ/2); + next = now + max(NEIGH_VAR(neigh->parms, RETRANS_TIME), + HZ/2); neigh_add_timer(neigh, next); immediate_probe = true; } else { @@ -994,14 +1000,14 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb) neigh_dbg(2, "neigh %p is delayed\n", neigh); neigh->nud_state = NUD_DELAY; neigh->updated = jiffies; - neigh_add_timer(neigh, - jiffies + neigh->parms->delay_probe_time); + neigh_add_timer(neigh, jiffies + + NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME)); } if (neigh->nud_state == NUD_INCOMPLETE) { if (skb) { while (neigh->arp_queue_len_bytes + skb->truesize > - neigh->parms->queue_len_bytes) { + NEIGH_VAR(neigh->parms, QUEUE_LEN_BYTES)) { struct sk_buff *buff; buff = __skb_dequeue(&neigh->arp_queue); @@ -1170,7 +1176,7 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, neigh_update_hhs(neigh); if (!(new & NUD_CONNECTED)) neigh->confirmed = jiffies - - (neigh->parms->base_reachable_time << 1); + (NEIGH_VAR(neigh->parms, BASE_REACHABLE_TIME) << 1); notify = 1; } if (new == old) @@ -1391,9 +1397,10 @@ void pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p, struct sk_buff *skb) { unsigned long now = jiffies; - unsigned long sched_next = now + (net_random() % p->proxy_delay); + unsigned long sched_next = now + (net_random() % + NEIGH_VAR(p, PROXY_DELAY)); - if (tbl->proxy_queue.qlen > p->proxy_qlen) { + if (tbl->proxy_queue.qlen > NEIGH_VAR(p, PROXY_QLEN)) { kfree_skb(skb); return; } @@ -1440,7 +1447,7 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev, p->tbl = tbl; atomic_set(&p->refcnt, 1); p->reachable_time = - neigh_rand_reach_time(p->base_reachable_time); + neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME)); dev_hold(dev); p->dev = dev; write_pnet(&p->net, hold_net(net)); @@ -1509,7 +1516,7 @@ static void neigh_table_init_no_netlink(struct neigh_table *tbl) write_pnet(&tbl->parms.net, &init_net); atomic_set(&tbl->parms.refcnt, 1); tbl->parms.reachable_time = - neigh_rand_reach_time(tbl->parms.base_reachable_time); + neigh_rand_reach_time(NEIGH_VAR(&tbl->parms, BASE_REACHABLE_TIME)); tbl->stats = alloc_percpu(struct neigh_statistics); if (!tbl->stats) @@ -1777,24 +1784,32 @@ static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms) if ((parms->dev && nla_put_u32(skb, NDTPA_IFINDEX, parms->dev->ifindex)) || nla_put_u32(skb, NDTPA_REFCNT, atomic_read(&parms->refcnt)) || - nla_put_u32(skb, NDTPA_QUEUE_LENBYTES, parms->queue_len_bytes) || + nla_put_u32(skb, NDTPA_QUEUE_LENBYTES, + NEIGH_VAR(parms, QUEUE_LEN_BYTES)) || /* approximative value for deprecated QUEUE_LEN (in packets) */ nla_put_u32(skb, NDTPA_QUEUE_LEN, - parms->queue_len_bytes / SKB_TRUESIZE(ETH_FRAME_LEN)) || - nla_put_u32(skb, NDTPA_PROXY_QLEN, parms->proxy_qlen) || - nla_put_u32(skb, NDTPA_APP_PROBES, parms->app_probes) || - nla_put_u32(skb, NDTPA_UCAST_PROBES, parms->ucast_probes) || - nla_put_u32(skb, NDTPA_MCAST_PROBES, parms->mcast_probes) || + NEIGH_VAR(parms, QUEUE_LEN_BYTES) / SKB_TRUESIZE(ETH_FRAME_LEN)) || + nla_put_u32(skb, NDTPA_PROXY_QLEN, NEIGH_VAR(parms, PROXY_QLEN)) || + nla_put_u32(skb, NDTPA_APP_PROBES, NEIGH_VAR(parms, APP_PROBES)) || + nla_put_u32(skb, NDTPA_UCAST_PROBES, + NEIGH_VAR(parms, UCAST_PROBES)) || + nla_put_u32(skb, NDTPA_MCAST_PROBES, + NEIGH_VAR(parms, MCAST_PROBES)) || nla_put_msecs(skb, NDTPA_REACHABLE_TIME, parms->reachable_time) || nla_put_msecs(skb, NDTPA_BASE_REACHABLE_TIME, - parms->base_reachable_time) || - nla_put_msecs(skb, NDTPA_GC_STALETIME, parms->gc_staletime) || + NEIGH_VAR(parms, BASE_REACHABLE_TIME)) || + nla_put_msecs(skb, NDTPA_GC_STALETIME, + NEIGH_VAR(parms, GC_STALETIME)) || nla_put_msecs(skb, NDTPA_DELAY_PROBE_TIME, - parms->delay_probe_time) || - nla_put_msecs(skb, NDTPA_RETRANS_TIME, parms->retrans_time) || - nla_put_msecs(skb, NDTPA_ANYCAST_DELAY, parms->anycast_delay) || - nla_put_msecs(skb, NDTPA_PROXY_DELAY, parms->proxy_delay) || - nla_put_msecs(skb, NDTPA_LOCKTIME, parms->locktime)) + NEIGH_VAR(parms, DELAY_PROBE_TIME)) || + nla_put_msecs(skb, NDTPA_RETRANS_TIME, + NEIGH_VAR(parms, RETRANS_TIME)) || + nla_put_msecs(skb, NDTPA_ANYCAST_DELAY, + NEIGH_VAR(parms, ANYCAST_DELAY)) || + nla_put_msecs(skb, NDTPA_PROXY_DELAY, + NEIGH_VAR(parms, PROXY_DELAY)) || + nla_put_msecs(skb, NDTPA_LOCKTIME, + NEIGH_VAR(parms, LOCKTIME))) goto nla_put_failure; return nla_nest_end(skb, nest); @@ -2010,44 +2025,54 @@ static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh) switch (i) { case NDTPA_QUEUE_LEN: - p->queue_len_bytes = nla_get_u32(tbp[i]) * - SKB_TRUESIZE(ETH_FRAME_LEN); + NEIGH_VAR_SET(p, QUEUE_LEN_BYTES, + nla_get_u32(tbp[i]) * + SKB_TRUESIZE(ETH_FRAME_LEN)); break; case NDTPA_QUEUE_LENBYTES: - p->queue_len_bytes = nla_get_u32(tbp[i]); + NEIGH_VAR_SET(p, QUEUE_LEN_BYTES, + nla_get_u32(tbp[i])); break; case NDTPA_PROXY_QLEN: - p->proxy_qlen = nla_get_u32(tbp[i]); + NEIGH_VAR_SET(p, PROXY_QLEN, + nla_get_u32(tbp[i])); break; case NDTPA_APP_PROBES: - p->app_probes = nla_get_u32(tbp[i]); + NEIGH_VAR_SET(p, APP_PROBES, + nla_get_u32(tbp[i])); break; case NDTPA_UCAST_PROBES: - p->ucast_probes = nla_get_u32(tbp[i]); + NEIGH_VAR_SET(p, UCAST_PROBES, + nla_get_u32(tbp[i])); break; case NDTPA_MCAST_PROBES: - p->mcast_probes = nla_get_u32(tbp[i]); + NEIGH_VAR_SET(p, MCAST_PROBES, + nla_get_u32(tbp[i])); break; case NDTPA_BASE_REACHABLE_TIME: - p->base_reachable_time = nla_get_msecs(tbp[i]); + NEIGH_VAR_SET(p, BASE_REACHABLE_TIME, + nla_get_msecs(tbp[i])); break; case NDTPA_GC_STALETIME: - p->gc_staletime = nla_get_msecs(tbp[i]); + NEIGH_VAR_SET(p, GC_STALETIME, + nla_get_msecs(tbp[i])); break; case NDTPA_DELAY_PROBE_TIME: - p->delay_probe_time = nla_get_msecs(tbp[i]); + NEIGH_VAR_SET(p, DELAY_PROBE_TIME, + nla_get_msecs(tbp[i])); break; case NDTPA_RETRANS_TIME: - p->retrans_time = nla_get_msecs(tbp[i]); + NEIGH_VAR_SET(p, RETRANS_TIME, + nla_get_msecs(tbp[i])); break; case NDTPA_ANYCAST_DELAY: - p->anycast_delay = nla_get_msecs(tbp[i]); + NEIGH_VAR_SET(p, ANYCAST_DELAY, nla_get_msecs(tbp[i])); break; case NDTPA_PROXY_DELAY: - p->proxy_delay = nla_get_msecs(tbp[i]); + NEIGH_VAR_SET(p, PROXY_DELAY, nla_get_msecs(tbp[i])); break; case NDTPA_LOCKTIME: - p->locktime = nla_get_msecs(tbp[i]); + NEIGH_VAR_SET(p, LOCKTIME, nla_get_msecs(tbp[i])); break; } } @@ -2788,133 +2813,68 @@ static int proc_unres_qlen(struct ctl_table *ctl, int write, return ret; } -enum { - NEIGH_VAR_MCAST_PROBE, - NEIGH_VAR_UCAST_PROBE, - NEIGH_VAR_APP_PROBE, - NEIGH_VAR_RETRANS_TIME, - NEIGH_VAR_BASE_REACHABLE_TIME, - NEIGH_VAR_DELAY_PROBE_TIME, - NEIGH_VAR_GC_STALETIME, - NEIGH_VAR_QUEUE_LEN, - NEIGH_VAR_QUEUE_LEN_BYTES, - NEIGH_VAR_PROXY_QLEN, - NEIGH_VAR_ANYCAST_DELAY, - NEIGH_VAR_PROXY_DELAY, - NEIGH_VAR_LOCKTIME, - NEIGH_VAR_RETRANS_TIME_MS, - NEIGH_VAR_BASE_REACHABLE_TIME_MS, - NEIGH_VAR_GC_INTERVAL, - NEIGH_VAR_GC_THRESH1, - NEIGH_VAR_GC_THRESH2, - NEIGH_VAR_GC_THRESH3, - NEIGH_VAR_MAX -}; +static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write, + void __user *buffer, + size_t *lenp, loff_t *ppos) +{ + struct ctl_table tmp = *ctl; + + tmp.extra1 = &zero; + tmp.extra2 = &int_max; + + return proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos); +} + +#define NEIGH_PARMS_DATA_OFFSET(index) \ + (&((struct neigh_parms *) 0)->data[index]) + +#define NEIGH_SYSCTL_ENTRY(attr, data_attr, name, mval, proc) \ + [NEIGH_VAR_ ## attr] = { \ + .procname = name, \ + .data = NEIGH_PARMS_DATA_OFFSET(NEIGH_VAR_ ## data_attr), \ + .maxlen = sizeof(int), \ + .mode = mval, \ + .proc_handler = proc, \ + } + +#define NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(attr, name) \ + NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, neigh_proc_dointvec_zero_intmax) + +#define NEIGH_SYSCTL_JIFFIES_ENTRY(attr, name) \ + NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, proc_dointvec_jiffies) + +#define NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(attr, name) \ + NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, proc_dointvec_userhz_jiffies) + +#define NEIGH_SYSCTL_MS_JIFFIES_ENTRY(attr, name) \ + NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, proc_dointvec_ms_jiffies) + +#define NEIGH_SYSCTL_MS_JIFFIES_REUSED_ENTRY(attr, data_attr, name) \ + NEIGH_SYSCTL_ENTRY(attr, data_attr, name, 0644, proc_dointvec_ms_jiffies) + +#define NEIGH_SYSCTL_UNRES_QLEN_REUSED_ENTRY(attr, data_attr, name) \ + NEIGH_SYSCTL_ENTRY(attr, data_attr, name, 0644, proc_unres_qlen) static struct neigh_sysctl_table { struct ctl_table_header *sysctl_header; struct ctl_table neigh_vars[NEIGH_VAR_MAX + 1]; } neigh_sysctl_template __read_mostly = { .neigh_vars = { - [NEIGH_VAR_MCAST_PROBE] = { - .procname = "mcast_solicit", - .maxlen = sizeof(int), - .mode = 0644, - .extra1 = &zero, - .extra2 = &int_max, - .proc_handler = proc_dointvec_minmax, - }, - [NEIGH_VAR_UCAST_PROBE] = { - .procname = "ucast_solicit", - .maxlen = sizeof(int), - .mode = 0644, - .extra1 = &zero, - .extra2 = &int_max, - .proc_handler = proc_dointvec_minmax, - }, - [NEIGH_VAR_APP_PROBE] = { - .procname = "app_solicit", - .maxlen = sizeof(int), - .mode = 0644, - .extra1 = &zero, - .extra2 = &int_max, - .proc_handler = proc_dointvec_minmax, - }, - [NEIGH_VAR_RETRANS_TIME] = { - .procname = "retrans_time", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_userhz_jiffies, - }, - [NEIGH_VAR_BASE_REACHABLE_TIME] = { - .procname = "base_reachable_time", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - [NEIGH_VAR_DELAY_PROBE_TIME] = { - .procname = "delay_first_probe_time", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - [NEIGH_VAR_GC_STALETIME] = { - .procname = "gc_stale_time", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_jiffies, - }, - [NEIGH_VAR_QUEUE_LEN] = { - .procname = "unres_qlen", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_unres_qlen, - }, - [NEIGH_VAR_QUEUE_LEN_BYTES] = { - .procname = "unres_qlen_bytes", - .maxlen = sizeof(int), - .mode = 0644, - .extra1 = &zero, - .proc_handler = proc_dointvec_minmax, - }, - [NEIGH_VAR_PROXY_QLEN] = { - .procname = "proxy_qlen", - .maxlen = sizeof(int), - .mode = 0644, - .extra1 = &zero, - .extra2 = &int_max, - .proc_handler = proc_dointvec_minmax, - }, - [NEIGH_VAR_ANYCAST_DELAY] = { - .procname = "anycast_delay", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_userhz_jiffies, - }, - [NEIGH_VAR_PROXY_DELAY] = { - .procname = "proxy_delay", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_userhz_jiffies, - }, - [NEIGH_VAR_LOCKTIME] = { - .procname = "locktime", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_userhz_jiffies, - }, - [NEIGH_VAR_RETRANS_TIME_MS] = { - .procname = "retrans_time_ms", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_ms_jiffies, - }, - [NEIGH_VAR_BASE_REACHABLE_TIME_MS] = { - .procname = "base_reachable_time_ms", - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec_ms_jiffies, - }, + NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(MCAST_PROBES, "mcast_solicit"), + NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(UCAST_PROBES, "ucast_solicit"), + NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(APP_PROBES, "app_solicit"), + NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(RETRANS_TIME, "retrans_time"), + NEIGH_SYSCTL_JIFFIES_ENTRY(BASE_REACHABLE_TIME, "base_reachable_time"), + NEIGH_SYSCTL_JIFFIES_ENTRY(DELAY_PROBE_TIME, "delay_first_probe_time"), + NEIGH_SYSCTL_JIFFIES_ENTRY(GC_STALETIME, "gc_stale_time"), + NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(QUEUE_LEN_BYTES, "unres_qlen_bytes"), + NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(PROXY_QLEN, "proxy_qlen"), + NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(ANYCAST_DELAY, "anycast_delay"), + NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(PROXY_DELAY, "proxy_delay"), + NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(LOCKTIME, "locktime"), + NEIGH_SYSCTL_UNRES_QLEN_REUSED_ENTRY(QUEUE_LEN, QUEUE_LEN_BYTES, "unres_qlen"), + NEIGH_SYSCTL_MS_JIFFIES_REUSED_ENTRY(RETRANS_TIME_MS, RETRANS_TIME, "retrans_time_ms"), + NEIGH_SYSCTL_MS_JIFFIES_REUSED_ENTRY(BASE_REACHABLE_TIME_MS, BASE_REACHABLE_TIME, "base_reachable_time_ms"), [NEIGH_VAR_GC_INTERVAL] = { .procname = "gc_interval", .maxlen = sizeof(int), @@ -2952,29 +2912,17 @@ static struct neigh_sysctl_table { int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p, char *p_name, proc_handler *handler) { + int i; struct neigh_sysctl_table *t; - const char *dev_name_source = NULL; + const char *dev_name_source; char neigh_path[ sizeof("net//neigh/") + IFNAMSIZ + IFNAMSIZ ]; t = kmemdup(&neigh_sysctl_template, sizeof(*t), GFP_KERNEL); if (!t) goto err; - t->neigh_vars[NEIGH_VAR_MCAST_PROBE].data = &p->mcast_probes; - t->neigh_vars[NEIGH_VAR_UCAST_PROBE].data = &p->ucast_probes; - t->neigh_vars[NEIGH_VAR_APP_PROBE].data = &p->app_probes; - t->neigh_vars[NEIGH_VAR_RETRANS_TIME].data = &p->retrans_time; - t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME].data = &p->base_reachable_time; - t->neigh_vars[NEIGH_VAR_DELAY_PROBE_TIME].data = &p->delay_probe_time; - t->neigh_vars[NEIGH_VAR_GC_STALETIME].data = &p->gc_staletime; - t->neigh_vars[NEIGH_VAR_QUEUE_LEN].data = &p->queue_len_bytes; - t->neigh_vars[NEIGH_VAR_QUEUE_LEN_BYTES].data = &p->queue_len_bytes; - t->neigh_vars[NEIGH_VAR_PROXY_QLEN].data = &p->proxy_qlen; - t->neigh_vars[NEIGH_VAR_ANYCAST_DELAY].data = &p->anycast_delay; - t->neigh_vars[NEIGH_VAR_PROXY_DELAY].data = &p->proxy_delay; - t->neigh_vars[NEIGH_VAR_LOCKTIME].data = &p->locktime; - t->neigh_vars[NEIGH_VAR_RETRANS_TIME_MS].data = &p->retrans_time; - t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].data = &p->base_reachable_time; + for (i = 0; i < ARRAY_SIZE(t->neigh_vars); i++) + t->neigh_vars[i].data += (long) p; if (dev) { dev_name_source = dev->name; @@ -2989,7 +2937,6 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p, t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = (int *)(p + 1) + 3; } - if (handler) { /* RetransTime */ t->neigh_vars[NEIGH_VAR_RETRANS_TIME].proc_handler = handler; diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c index f8637f93d31..c8121ceddb9 100644 --- a/net/decnet/dn_neigh.c +++ b/net/decnet/dn_neigh.c @@ -102,19 +102,21 @@ struct neigh_table dn_neigh_table = { .id = "dn_neigh_cache", .parms ={ .tbl = &dn_neigh_table, - .base_reachable_time = 30 * HZ, - .retrans_time = 1 * HZ, - .gc_staletime = 60 * HZ, - .reachable_time = 30 * HZ, - .delay_probe_time = 5 * HZ, - .queue_len_bytes = 64*1024, - .ucast_probes = 0, - .app_probes = 0, - .mcast_probes = 0, - .anycast_delay = 0, - .proxy_delay = 0, - .proxy_qlen = 0, - .locktime = 1 * HZ, + .reachable_time = 30 * HZ, + .data = { + [NEIGH_VAR_MCAST_PROBES] = 0, + [NEIGH_VAR_UCAST_PROBES] = 0, + [NEIGH_VAR_APP_PROBES] = 0, + [NEIGH_VAR_RETRANS_TIME] = 1 * HZ, + [NEIGH_VAR_BASE_REACHABLE_TIME] = 30 * HZ, + [NEIGH_VAR_DELAY_PROBE_TIME] = 5 * HZ, + [NEIGH_VAR_GC_STALETIME] = 60 * HZ, + [NEIGH_VAR_QUEUE_LEN_BYTES] = 64*1024, + [NEIGH_VAR_PROXY_QLEN] = 0, + [NEIGH_VAR_ANYCAST_DELAY] = 0, + [NEIGH_VAR_PROXY_DELAY] = 0, + [NEIGH_VAR_LOCKTIME] = 1 * HZ, + }, }, .gc_interval = 30 * HZ, .gc_thresh1 = 128, diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index 7808093cede..3a37c7df2a2 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -166,18 +166,20 @@ struct neigh_table arp_tbl = { .id = "arp_cache", .parms = { .tbl = &arp_tbl, - .base_reachable_time = 30 * HZ, - .retrans_time = 1 * HZ, - .gc_staletime = 60 * HZ, .reachable_time = 30 * HZ, - .delay_probe_time = 5 * HZ, - .queue_len_bytes = 64*1024, - .ucast_probes = 3, - .mcast_probes = 3, - .anycast_delay = 1 * HZ, - .proxy_delay = (8 * HZ) / 10, - .proxy_qlen = 64, - .locktime = 1 * HZ, + .data = { + [NEIGH_VAR_MCAST_PROBES] = 3, + [NEIGH_VAR_UCAST_PROBES] = 3, + [NEIGH_VAR_RETRANS_TIME] = 1 * HZ, + [NEIGH_VAR_BASE_REACHABLE_TIME] = 30 * HZ, + [NEIGH_VAR_DELAY_PROBE_TIME] = 5 * HZ, + [NEIGH_VAR_GC_STALETIME] = 60 * HZ, + [NEIGH_VAR_QUEUE_LEN_BYTES] = 64 * 1024, + [NEIGH_VAR_PROXY_QLEN] = 64, + [NEIGH_VAR_ANYCAST_DELAY] = 1 * HZ, + [NEIGH_VAR_PROXY_DELAY] = (8 * HZ) / 10, + [NEIGH_VAR_LOCKTIME] = 1 * HZ, + }, }, .gc_interval = 30 * HZ, .gc_thresh1 = 128, @@ -359,14 +361,14 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb) if (!saddr) saddr = inet_select_addr(dev, target, RT_SCOPE_LINK); - probes -= neigh->parms->ucast_probes; + probes -= NEIGH_VAR(neigh->parms, UCAST_PROBES); if (probes < 0) { if (!(neigh->nud_state & NUD_VALID)) pr_debug("trying to ucast probe in NUD_INVALID\n"); neigh_ha_snapshot(dst_ha, neigh, dev); dst_hw = dst_ha; } else { - probes -= neigh->parms->app_probes; + probes -= NEIGH_VAR(neigh->parms, APP_PROBES); if (probes < 0) { neigh_app_ns(neigh); return; @@ -871,7 +873,7 @@ static int arp_process(struct sk_buff *skb) if (NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED || skb->pkt_type == PACKET_HOST || - in_dev->arp_parms->proxy_delay == 0) { + NEIGH_VAR(in_dev->arp_parms, PROXY_DELAY) == 0) { arp_send(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip, sha, dev->dev_addr, sha); @@ -910,7 +912,8 @@ static int arp_process(struct sk_buff *skb) agents are active. Taking the first reply prevents arp trashing and chooses the fastest router. */ - override = time_after(jiffies, n->updated + n->parms->locktime); + override = time_after(jiffies, n->updated + + NEIGH_VAR(n->parms, LOCKTIME)); /* Broadcast replies and request packets do not assert neighbour reachability. diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 5087cc5cb81..55dc56f9072 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1071,7 +1071,7 @@ retry: regen_advance = idev->cnf.regen_max_retry * idev->cnf.dad_transmits * - idev->nd_parms->retrans_time / HZ; + NEIGH_VAR(idev->nd_parms, RETRANS_TIME) / HZ; write_unlock_bh(&idev->lock); /* A temporary address is created only if this calculated Preferred @@ -1888,7 +1888,8 @@ static void ipv6_regen_rndid(unsigned long data) expires = jiffies + idev->cnf.temp_prefered_lft * HZ - - idev->cnf.regen_max_retry * idev->cnf.dad_transmits * idev->nd_parms->retrans_time - + idev->cnf.regen_max_retry * idev->cnf.dad_transmits * + NEIGH_VAR(idev->nd_parms, RETRANS_TIME) - idev->cnf.max_desync_factor * HZ; if (time_before(expires, jiffies)) { pr_warn("%s: too short regeneration interval; timer disabled for %s\n", @@ -3188,7 +3189,8 @@ static void addrconf_dad_timer(unsigned long data) } ifp->dad_probes--; - addrconf_mod_dad_timer(ifp, ifp->idev->nd_parms->retrans_time); + addrconf_mod_dad_timer(ifp, + NEIGH_VAR(ifp->idev->nd_parms, RETRANS_TIME)); spin_unlock(&ifp->lock); write_unlock(&idev->lock); @@ -3509,7 +3511,7 @@ restart: !(ifp->flags&IFA_F_TENTATIVE)) { unsigned long regen_advance = ifp->idev->cnf.regen_max_retry * ifp->idev->cnf.dad_transmits * - ifp->idev->nd_parms->retrans_time / HZ; + NEIGH_VAR(ifp->idev->nd_parms, RETRANS_TIME) / HZ; if (age >= ifp->prefered_lft - regen_advance) { struct inet6_ifaddr *ifpub = ifp->ifpub; @@ -4231,7 +4233,7 @@ static int inet6_fill_ifla6_attrs(struct sk_buff *skb, struct inet6_dev *idev) ci.max_reasm_len = IPV6_MAXPLEN; ci.tstamp = cstamp_delta(idev->tstamp); ci.reachable_time = jiffies_to_msecs(idev->nd_parms->reachable_time); - ci.retrans_time = jiffies_to_msecs(idev->nd_parms->retrans_time); + ci.retrans_time = jiffies_to_msecs(NEIGH_VAR(idev->nd_parms, RETRANS_TIME)); if (nla_put(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci)) goto nla_put_failure; nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32)); diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 30086517139..0da0986a929 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -125,17 +125,19 @@ struct neigh_table nd_tbl = { .id = "ndisc_cache", .parms = { .tbl = &nd_tbl, - .base_reachable_time = ND_REACHABLE_TIME, - .retrans_time = ND_RETRANS_TIMER, - .gc_staletime = 60 * HZ, .reachable_time = ND_REACHABLE_TIME, - .delay_probe_time = 5 * HZ, - .queue_len_bytes = 64*1024, - .ucast_probes = 3, - .mcast_probes = 3, - .anycast_delay = 1 * HZ, - .proxy_delay = (8 * HZ) / 10, - .proxy_qlen = 64, + .data = { + [NEIGH_VAR_MCAST_PROBES] = 3, + [NEIGH_VAR_UCAST_PROBES] = 3, + [NEIGH_VAR_RETRANS_TIME] = ND_RETRANS_TIMER, + [NEIGH_VAR_BASE_REACHABLE_TIME] = ND_REACHABLE_TIME, + [NEIGH_VAR_DELAY_PROBE_TIME] = 5 * HZ, + [NEIGH_VAR_GC_STALETIME] = 60 * HZ, + [NEIGH_VAR_QUEUE_LEN_BYTES] = 64 * 1024, + [NEIGH_VAR_PROXY_QLEN] = 64, + [NEIGH_VAR_ANYCAST_DELAY] = 1 * HZ, + [NEIGH_VAR_PROXY_DELAY] = (8 * HZ) / 10, + }, }, .gc_interval = 30 * HZ, .gc_thresh1 = 128, @@ -656,14 +658,14 @@ static void ndisc_solicit(struct neighbour *neigh, struct sk_buff *skb) if (skb && ipv6_chk_addr(dev_net(dev), &ipv6_hdr(skb)->saddr, dev, 1)) saddr = &ipv6_hdr(skb)->saddr; - if ((probes -= neigh->parms->ucast_probes) < 0) { + if ((probes -= NEIGH_VAR(neigh->parms, UCAST_PROBES)) < 0) { if (!(neigh->nud_state & NUD_VALID)) { ND_PRINTK(1, dbg, "%s: trying to ucast probe in NUD_INVALID: %pI6\n", __func__, target); } ndisc_send_ns(dev, neigh, target, target, saddr); - } else if ((probes -= neigh->parms->app_probes) < 0) { + } else if ((probes -= NEIGH_VAR(neigh->parms, APP_PROBES)) < 0) { neigh_app_ns(neigh); } else { addrconf_addr_solict_mult(target, &mcaddr); @@ -790,7 +792,7 @@ static void ndisc_recv_ns(struct sk_buff *skb) if (!(NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED) && skb->pkt_type != PACKET_HOST && inc && - idev->nd_parms->proxy_delay != 0) { + NEIGH_VAR(idev->nd_parms, PROXY_DELAY) != 0) { /* * for anycast or proxy, * sender should delay its response @@ -1210,7 +1212,7 @@ skip_defrtr: rtime = (rtime*HZ)/1000; if (rtime < HZ/10) rtime = HZ/10; - in6_dev->nd_parms->retrans_time = rtime; + NEIGH_VAR_SET(in6_dev->nd_parms, RETRANS_TIME, rtime); in6_dev->tstamp = jiffies; inet6_ifinfo_notify(RTM_NEWLINK, in6_dev); } @@ -1222,9 +1224,11 @@ skip_defrtr: if (rtime < HZ/10) rtime = HZ/10; - if (rtime != in6_dev->nd_parms->base_reachable_time) { - in6_dev->nd_parms->base_reachable_time = rtime; - in6_dev->nd_parms->gc_staletime = 3 * rtime; + if (rtime != NEIGH_VAR(in6_dev->nd_parms, BASE_REACHABLE_TIME)) { + NEIGH_VAR_SET(in6_dev->nd_parms, + BASE_REACHABLE_TIME, rtime); + NEIGH_VAR_SET(in6_dev->nd_parms, + GC_STALETIME, 3 * rtime); in6_dev->nd_parms->reachable_time = neigh_rand_reach_time(rtime); in6_dev->tstamp = jiffies; inet6_ifinfo_notify(RTM_NEWLINK, in6_dev); @@ -1665,8 +1669,9 @@ int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, void __user *bu ret = -1; if (write && ret == 0 && dev && (idev = in6_dev_get(dev)) != NULL) { - if (ctl->data == &idev->nd_parms->base_reachable_time) - idev->nd_parms->reachable_time = neigh_rand_reach_time(idev->nd_parms->base_reachable_time); + if (ctl->data == &NEIGH_VAR(idev->nd_parms, BASE_REACHABLE_TIME)) + idev->nd_parms->reachable_time = + neigh_rand_reach_time(NEIGH_VAR(idev->nd_parms, BASE_REACHABLE_TIME)); idev->tstamp = jiffies; inet6_ifinfo_notify(RTM_NEWLINK, idev); in6_dev_put(idev); |