* (rco@di.uminho.pt) Routing table insertion and update
* Linus Torvalds : Rewrote bits to be sensible
* Alan Cox : Added BSD route gw semantics
- * Alan Cox : Super /proc >4K
+ * Alan Cox : Super /proc >4K
* Alan Cox : MTU in route table
* Alan Cox : MSS actually. Also added the window
* clamper.
* Alan Cox : Faster /proc handling
* Alexey Kuznetsov : Massive rework to support tree based routing,
* routing caches and better behaviour.
- *
+ *
* Olaf Erb : irtt wasn't being copied right.
* Bjorn Ekwall : Kerneld route support.
* Alan Cox : Multicast fixed (I hope)
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/string.h>
& rt_hash_mask);
}
+#define rt_hash(daddr, saddr, idx) \
+ rt_hash_code((__force u32)(__be32)(daddr),\
+ (__force u32)(__be32)(saddr) ^ ((idx) << 5))
+
#ifdef CONFIG_PROC_FS
struct rt_cache_iter_state {
int bucket;
{
struct rt_cache_iter_state *st = rcu_dereference(seq->private);
- r = r->u.rt_next;
+ r = r->u.dst.rt_next;
while (!r) {
rcu_read_unlock_bh();
if (--st->bucket < 0)
dev_queue_xmit) : 0,
r->rt_spec_dst);
seq_printf(seq, "%-127s\n", temp);
- }
- return 0;
+ }
+ return 0;
}
-static struct seq_operations rt_cache_seq_ops = {
+static const struct seq_operations rt_cache_seq_ops = {
.start = rt_cache_seq_start,
.next = rt_cache_seq_next,
.stop = rt_cache_seq_stop,
goto out;
}
-static struct file_operations rt_cache_seq_fops = {
+static const struct file_operations rt_cache_seq_fops = {
.owner = THIS_MODULE,
.open = rt_cache_seq_open,
.read = seq_read,
return &per_cpu(rt_cache_stat, cpu);
}
return NULL;
-
+
}
static void rt_cpu_seq_stop(struct seq_file *seq, void *v)
seq_printf(seq, "entries in_hit in_slow_tot in_slow_mc in_no_route in_brd in_martian_dst in_martian_src out_hit out_slow_tot out_slow_mc gc_total gc_ignored gc_goal_miss gc_dst_overflow in_hlist_search out_hlist_search\n");
return 0;
}
-
+
seq_printf(seq,"%08x %08x %08x %08x %08x %08x %08x %08x "
" %08x %08x %08x %08x %08x %08x %08x %08x %08x \n",
atomic_read(&ipv4_dst_ops.entries),
st->out_hit,
st->out_slow_tot,
- st->out_slow_mc,
+ st->out_slow_mc,
st->gc_total,
st->gc_ignored,
return 0;
}
-static struct seq_operations rt_cpu_seq_ops = {
+static const struct seq_operations rt_cpu_seq_ops = {
.start = rt_cpu_seq_start,
.next = rt_cpu_seq_next,
.stop = rt_cpu_seq_stop,
return seq_open(file, &rt_cpu_seq_ops);
}
-static struct file_operations rt_cpu_seq_fops = {
+static const struct file_operations rt_cpu_seq_fops = {
.owner = THIS_MODULE,
.open = rt_cpu_seq_open,
.read = seq_read,
};
#endif /* CONFIG_PROC_FS */
-
+
static __inline__ void rt_free(struct rtable *rt)
{
multipath_remove(rt);
/* Kill broadcast/multicast entries very aggresively, if they
collide in hash table with more useful entries */
return (rth->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST)) &&
- rth->fl.iif && rth->u.rt_next;
+ rth->fl.iif && rth->u.dst.rt_next;
}
static __inline__ int rt_valuable(struct rtable *rth)
static inline int compare_keys(struct flowi *fl1, struct flowi *fl2)
{
- return memcmp(&fl1->nl_u.ip4_u, &fl2->nl_u.ip4_u, sizeof(fl1->nl_u.ip4_u)) == 0 &&
- fl1->oif == fl2->oif &&
- fl1->iif == fl2->iif;
+ return ((__force u32)((fl1->nl_u.ip4_u.daddr ^ fl2->nl_u.ip4_u.daddr) |
+ (fl1->nl_u.ip4_u.saddr ^ fl2->nl_u.ip4_u.saddr)) |
+ (fl1->mark ^ fl2->mark) |
+ (*(u16 *)&fl1->nl_u.ip4_u.tos ^
+ *(u16 *)&fl2->nl_u.ip4_u.tos) |
+ (fl1->oif ^ fl2->oif) |
+ (fl1->iif ^ fl2->iif)) == 0;
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
if (((*rthp)->u.dst.flags & DST_BALANCED) != 0 &&
compare_keys(&(*rthp)->fl, &expentry->fl)) {
if (*rthp == expentry) {
- *rthp = rth->u.rt_next;
+ *rthp = rth->u.dst.rt_next;
continue;
} else {
- *rthp = rth->u.rt_next;
+ *rthp = rth->u.dst.rt_next;
rt_free(rth);
if (removed_count)
++(*removed_count);
} else {
if (!((*rthp)->u.dst.flags & DST_BALANCED) &&
passedexpired && !nextstep)
- nextstep = &rth->u.rt_next;
+ nextstep = &rth->u.dst.rt_next;
- rthp = &rth->u.rt_next;
+ rthp = &rth->u.dst.rt_next;
}
}
/* Entry is expired even if it is in use */
if (time_before_eq(now, rth->u.dst.expires)) {
tmo >>= 1;
- rthp = &rth->u.rt_next;
+ rthp = &rth->u.dst.rt_next;
continue;
}
} else if (!rt_may_expire(rth, tmo, ip_rt_gc_timeout)) {
tmo >>= 1;
- rthp = &rth->u.rt_next;
+ rthp = &rth->u.dst.rt_next;
continue;
}
if (!rthp)
break;
} else {
- *rthp = rth->u.rt_next;
+ *rthp = rth->u.dst.rt_next;
rt_free(rth);
}
#else /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */
- *rthp = rth->u.rt_next;
- rt_free(rth);
+ *rthp = rth->u.dst.rt_next;
+ rt_free(rth);
#endif /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */
}
spin_unlock(rt_hash_lock_addr(i));
spin_unlock_bh(rt_hash_lock_addr(i));
for (; rth; rth = next) {
- next = rth->u.rt_next;
+ next = rth->u.dst.rt_next;
rt_free(rth);
}
}
if (user_mode && tmo < ip_rt_max_delay-ip_rt_min_delay)
tmo = 0;
-
+
if (delay > tmo)
delay = tmo;
}
while ((rth = *rthp) != NULL) {
if (!rt_may_expire(rth, tmo, expire)) {
tmo >>= 1;
- rthp = &rth->u.rt_next;
+ rthp = &rth->u.dst.rt_next;
continue;
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
if (!rthp)
break;
} else {
- *rthp = rth->u.rt_next;
+ *rthp = rth->u.dst.rt_next;
rt_free(rth);
goal--;
}
#else /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */
- *rthp = rth->u.rt_next;
+ *rthp = rth->u.dst.rt_next;
rt_free(rth);
goal--;
#endif /* CONFIG_IP_ROUTE_MULTIPATH_CACHED */
if (compare_keys(&rth->fl, &rt->fl)) {
#endif
/* Put it first */
- *rthp = rth->u.rt_next;
+ *rthp = rth->u.dst.rt_next;
/*
* Since lookup is lockfree, the deletion
* must be visible to another weakly ordered CPU before
* the insertion at the start of the hash chain.
*/
- rcu_assign_pointer(rth->u.rt_next,
+ rcu_assign_pointer(rth->u.dst.rt_next,
rt_hash_table[hash].chain);
/*
* Since lookup is lockfree, the update writes
chain_length++;
- rthp = &rth->u.rt_next;
+ rthp = &rth->u.dst.rt_next;
}
if (cand) {
* only 2 entries per bucket. We will see.
*/
if (chain_length > ip_rt_gc_elasticity) {
- *candp = cand->u.rt_next;
+ *candp = cand->u.dst.rt_next;
rt_free(cand);
}
}
}
}
- rt->u.rt_next = rt_hash_table[hash].chain;
+ rt->u.dst.rt_next = rt_hash_table[hash].chain;
#if RT_CACHE_DEBUG >= 2
- if (rt->u.rt_next) {
+ if (rt->u.dst.rt_next) {
struct rtable *trt;
printk(KERN_DEBUG "rt_cache @%02x: %u.%u.%u.%u", hash,
NIPQUAD(rt->rt_dst));
- for (trt = rt->u.rt_next; trt; trt = trt->u.rt_next)
+ for (trt = rt->u.dst.rt_next; trt; trt = trt->u.dst.rt_next)
printk(" . %u.%u.%u.%u", NIPQUAD(trt->rt_dst));
printk("\n");
}
u32 salt;
spin_lock_bh(&ip_fb_id_lock);
- salt = secure_ip_id(ip_fallback_id ^ iph->daddr);
+ salt = secure_ip_id((__force __be32)ip_fallback_id ^ iph->daddr);
iph->id = htons(salt & 0xFFFF);
ip_fallback_id = salt;
spin_unlock_bh(&ip_fb_id_lock);
return;
}
} else
- printk(KERN_DEBUG "rt_bind_peer(0) @%p\n",
+ printk(KERN_DEBUG "rt_bind_peer(0) @%p\n",
__builtin_return_address(0));
ip_select_fb_ident(iph);
spin_lock_bh(rt_hash_lock_addr(hash));
ip_rt_put(rt);
for (rthp = &rt_hash_table[hash].chain; *rthp;
- rthp = &(*rthp)->u.rt_next)
+ rthp = &(*rthp)->u.dst.rt_next)
if (*rthp == rt) {
- *rthp = rt->u.rt_next;
+ *rthp = rt->u.dst.rt_next;
rt_free(rt);
break;
}
spin_unlock_bh(rt_hash_lock_addr(hash));
}
-void ip_rt_redirect(u32 old_gw, u32 daddr, u32 new_gw,
- u32 saddr, struct net_device *dev)
+void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
+ __be32 saddr, struct net_device *dev)
{
int i, k;
struct in_device *in_dev = in_dev_get(dev);
struct rtable *rth, **rthp;
- u32 skeys[2] = { saddr, 0 };
+ __be32 skeys[2] = { saddr, 0 };
int ikeys[2] = { dev->ifindex, 0 };
struct netevent_redirect netevent;
for (i = 0; i < 2; i++) {
for (k = 0; k < 2; k++) {
- unsigned hash = rt_hash_code(daddr,
- skeys[i] ^ (ikeys[k] << 5));
+ unsigned hash = rt_hash(daddr, skeys[i], ikeys[k]);
rthp=&rt_hash_table[hash].chain;
rth->fl.fl4_src != skeys[i] ||
rth->fl.oif != ikeys[k] ||
rth->fl.iif != 0) {
- rthp = &rth->u.rt_next;
+ rthp = &rth->u.dst.rt_next;
continue;
}
/* Copy all the information. */
*rt = *rth;
- INIT_RCU_HEAD(&rt->u.dst.rcu_head);
+ INIT_RCU_HEAD(&rt->u.dst.rcu_head);
rt->u.dst.__use = 1;
atomic_set(&rt->u.dst.__refcnt, 1);
rt->u.dst.child = NULL;
rt_drop(rt);
goto do_next;
}
-
+
netevent.old = &rth->u.dst;
netevent.new = &rt->u.dst;
- call_netevent_notifiers(NETEVENT_REDIRECT,
- &netevent);
+ call_netevent_notifiers(NETEVENT_REDIRECT,
+ &netevent);
rt_del(hash, rth);
if (!rt_intern_hash(hash, rt, &rt))
ret = NULL;
} else if ((rt->rt_flags & RTCF_REDIRECTED) ||
rt->u.dst.expires) {
- unsigned hash = rt_hash_code(rt->fl.fl4_dst,
- rt->fl.fl4_src ^
- (rt->fl.oif << 5));
+ unsigned hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src,
+ rt->fl.oif);
#if RT_CACHE_DEBUG >= 1
printk(KERN_DEBUG "ip_rt_advice: redirect to "
"%u.%u.%u.%u/%02x dropped\n",
/* Check for load limit; set rate_last to the latest sent
* redirect.
*/
- if (time_after(jiffies,
+ if (rt->u.dst.rate_tokens == 0 ||
+ time_after(jiffies,
(rt->u.dst.rate_last +
(ip_rt_redirect_load << rt->u.dst.rate_tokens)))) {
icmp_send(skb, ICMP_REDIRECT, ICMP_REDIR_HOST, rt->rt_gateway);
#endif
}
out:
- in_dev_put(in_dev);
+ in_dev_put(in_dev);
}
static int ip_error(struct sk_buff *skb)
out: kfree_skb(skb);
return 0;
-}
+}
/*
* The last two values are not from the RFC but
static __inline__ unsigned short guess_mtu(unsigned short old_mtu)
{
int i;
-
+
for (i = 0; i < ARRAY_SIZE(mtu_plateau); i++)
if (old_mtu > mtu_plateau[i])
return mtu_plateau[i];
int i;
unsigned short old_mtu = ntohs(iph->tot_len);
struct rtable *rth;
- u32 skeys[2] = { iph->saddr, 0, };
- u32 daddr = iph->daddr;
+ __be32 skeys[2] = { iph->saddr, 0, };
+ __be32 daddr = iph->daddr;
unsigned short est_mtu = 0;
if (ipv4_config.no_pmtu_disc)
return 0;
for (i = 0; i < 2; i++) {
- unsigned hash = rt_hash_code(daddr, skeys[i]);
+ unsigned hash = rt_hash(daddr, skeys[i], 0);
rcu_read_lock();
for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
- rth = rcu_dereference(rth->u.rt_next)) {
+ rth = rcu_dereference(rth->u.dst.rt_next)) {
if (rth->fl.fl4_dst == daddr &&
rth->fl.fl4_src == skeys[i] &&
rth->rt_dst == daddr &&
mtu = guess_mtu(old_mtu);
}
if (mtu <= rth->u.dst.metrics[RTAX_MTU-1]) {
- if (mtu < rth->u.dst.metrics[RTAX_MTU-1]) {
+ if (mtu < rth->u.dst.metrics[RTAX_MTU-1]) {
dst_confirm(&rth->u.dst);
if (mtu < ip_rt_min_pmtu) {
mtu = ip_rt_min_pmtu;
static int ip_rt_bug(struct sk_buff *skb)
{
printk(KERN_DEBUG "ip_rt_bug: %u.%u.%u.%u -> %u.%u.%u.%u, %s\n",
- NIPQUAD(skb->nh.iph->saddr), NIPQUAD(skb->nh.iph->daddr),
+ NIPQUAD(ip_hdr(skb)->saddr), NIPQUAD(ip_hdr(skb)->daddr),
skb->dev ? skb->dev->name : "?");
kfree_skb(skb);
return 0;
void ip_rt_get_source(u8 *addr, struct rtable *rt)
{
- u32 src;
+ __be32 src;
struct fib_result res;
if (rt->fl.iif == 0)
#endif
set_class_tag(rt, itag);
#endif
- rt->rt_type = res->type;
+ rt->rt_type = res->type;
}
-static int ip_route_input_mc(struct sk_buff *skb, u32 daddr, u32 saddr,
+static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
u8 tos, struct net_device *dev, int our)
{
unsigned hash;
struct rtable *rth;
- u32 spec_dst;
+ __be32 spec_dst;
struct in_device *in_dev = in_dev_get(dev);
u32 itag = 0;
rth->fl.fl4_dst = daddr;
rth->rt_dst = daddr;
rth->fl.fl4_tos = tos;
-#ifdef CONFIG_IP_ROUTE_FWMARK
- rth->fl.fl4_fwmark= skb->nfmark;
-#endif
+ rth->fl.mark = skb->mark;
rth->fl.fl4_src = saddr;
rth->rt_src = saddr;
#ifdef CONFIG_NET_CLS_ROUTE
RT_CACHE_STAT_INC(in_slow_mc);
in_dev_put(in_dev);
- hash = rt_hash_code(daddr, saddr ^ (dev->ifindex << 5));
+ hash = rt_hash(daddr, saddr, dev->ifindex);
return rt_intern_hash(hash, rth, (struct rtable**) &skb->dst);
e_nobufs:
static void ip_handle_martian_source(struct net_device *dev,
struct in_device *in_dev,
struct sk_buff *skb,
- u32 daddr,
- u32 saddr)
+ __be32 daddr,
+ __be32 saddr)
{
RT_CACHE_STAT_INC(in_martian_src);
#ifdef CONFIG_IP_ROUTE_VERBOSE
printk(KERN_WARNING "martian source %u.%u.%u.%u from "
"%u.%u.%u.%u, on dev %s\n",
NIPQUAD(daddr), NIPQUAD(saddr), dev->name);
- if (dev->hard_header_len && skb->mac.raw) {
+ if (dev->hard_header_len && skb_mac_header_was_set(skb)) {
int i;
- unsigned char *p = skb->mac.raw;
+ const unsigned char *p = skb_mac_header(skb);
printk(KERN_WARNING "ll header: ");
for (i = 0; i < dev->hard_header_len; i++, p++) {
printk("%02x", *p);
#endif
}
-static inline int __mkroute_input(struct sk_buff *skb,
- struct fib_result* res,
- struct in_device *in_dev,
- u32 daddr, u32 saddr, u32 tos,
- struct rtable **result)
+static inline int __mkroute_input(struct sk_buff *skb,
+ struct fib_result* res,
+ struct in_device *in_dev,
+ __be32 daddr, __be32 saddr, u32 tos,
+ struct rtable **result)
{
struct rtable *rth;
int err;
struct in_device *out_dev;
unsigned flags = 0;
- u32 spec_dst, itag;
+ __be32 spec_dst;
+ u32 itag;
/* get a working reference to the output device */
out_dev = in_dev_get(FIB_RES_DEV(*res));
}
- err = fib_validate_source(saddr, daddr, tos, FIB_RES_OIF(*res),
+ err = fib_validate_source(saddr, daddr, tos, FIB_RES_OIF(*res),
in_dev->dev, &spec_dst, &itag);
if (err < 0) {
- ip_handle_martian_source(in_dev->dev, in_dev, skb, daddr,
+ ip_handle_martian_source(in_dev->dev, in_dev, skb, daddr,
saddr);
-
+
err = -EINVAL;
goto cleanup;
}
#endif
if (in_dev->cnf.no_policy)
rth->u.dst.flags |= DST_NOPOLICY;
- if (in_dev->cnf.no_xfrm)
+ if (out_dev->cnf.no_xfrm)
rth->u.dst.flags |= DST_NOXFRM;
rth->fl.fl4_dst = daddr;
rth->rt_dst = daddr;
rth->fl.fl4_tos = tos;
-#ifdef CONFIG_IP_ROUTE_FWMARK
- rth->fl.fl4_fwmark= skb->nfmark;
-#endif
+ rth->fl.mark = skb->mark;
rth->fl.fl4_src = saddr;
rth->rt_src = saddr;
rth->rt_gateway = daddr;
/* release the working reference to the output device */
in_dev_put(out_dev);
return err;
-}
+}
-static inline int ip_mkroute_input_def(struct sk_buff *skb,
- struct fib_result* res,
+static inline int ip_mkroute_input_def(struct sk_buff *skb,
+ struct fib_result* res,
const struct flowi *fl,
struct in_device *in_dev,
- u32 daddr, u32 saddr, u32 tos)
+ __be32 daddr, __be32 saddr, u32 tos)
{
struct rtable* rth = NULL;
int err;
return err;
/* put it into the cache */
- hash = rt_hash_code(daddr, saddr ^ (fl->iif << 5));
- return rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
+ hash = rt_hash(daddr, saddr, fl->iif);
+ return rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
}
-static inline int ip_mkroute_input(struct sk_buff *skb,
- struct fib_result* res,
+static inline int ip_mkroute_input(struct sk_buff *skb,
+ struct fib_result* res,
const struct flowi *fl,
struct in_device *in_dev,
- u32 daddr, u32 saddr, u32 tos)
+ __be32 daddr, __be32 saddr, u32 tos)
{
#ifdef CONFIG_IP_ROUTE_MULTIPATH_CACHED
struct rtable* rth = NULL, *rtres;
if (hopcount < 2)
return ip_mkroute_input_def(skb, res, fl, in_dev, daddr,
saddr, tos);
-
+
/* add all alternatives to the routing cache */
for (hop = 0; hop < hopcount; hop++) {
res->nh_sel = hop;
return err;
/* put it into the cache */
- hash = rt_hash_code(daddr, saddr ^ (fl->iif << 5));
+ hash = rt_hash(daddr, saddr, fl->iif);
err = rt_intern_hash(hash, rth, &rtres);
if (err)
return err;
* 2. IP spoofing attempts are filtered with 100% of guarantee.
*/
-static int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
+static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
u8 tos, struct net_device *dev)
{
struct fib_result res;
.saddr = saddr,
.tos = tos,
.scope = RT_SCOPE_UNIVERSE,
-#ifdef CONFIG_IP_ROUTE_FWMARK
- .fwmark = skb->nfmark
-#endif
} },
+ .mark = skb->mark,
.iif = dev->ifindex };
unsigned flags = 0;
u32 itag = 0;
struct rtable * rth;
unsigned hash;
- u32 spec_dst;
+ __be32 spec_dst;
int err = -EINVAL;
int free_res = 0;
if (MULTICAST(saddr) || BADCLASS(saddr) || LOOPBACK(saddr))
goto martian_source;
- if (daddr == 0xFFFFFFFF || (saddr == 0 && daddr == 0))
+ if (daddr == htonl(0xFFFFFFFF) || (saddr == 0 && daddr == 0))
goto brd_input;
/* Accept zero addresses only to limited broadcast;
goto e_nobufs;
if (err == -EINVAL)
goto e_inval;
-
+
done:
in_dev_put(in_dev);
if (free_res)
rth->fl.fl4_dst = daddr;
rth->rt_dst = daddr;
rth->fl.fl4_tos = tos;
-#ifdef CONFIG_IP_ROUTE_FWMARK
- rth->fl.fl4_fwmark= skb->nfmark;
-#endif
+ rth->fl.mark = skb->mark;
rth->fl.fl4_src = saddr;
rth->rt_src = saddr;
#ifdef CONFIG_NET_CLS_ROUTE
rth->rt_flags &= ~RTCF_LOCAL;
}
rth->rt_type = res.type;
- hash = rt_hash_code(daddr, saddr ^ (fl.iif << 5));
+ hash = rt_hash(daddr, saddr, fl.iif);
err = rt_intern_hash(hash, rth, (struct rtable**)&skb->dst);
goto done;
#endif
e_hostunreach:
- err = -EHOSTUNREACH;
- goto done;
+ err = -EHOSTUNREACH;
+ goto done;
e_inval:
err = -EINVAL;
goto e_inval;
}
-int ip_route_input(struct sk_buff *skb, u32 daddr, u32 saddr,
+int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
u8 tos, struct net_device *dev)
{
struct rtable * rth;
int iif = dev->ifindex;
tos &= IPTOS_RT_MASK;
- hash = rt_hash_code(daddr, saddr ^ (iif << 5));
+ hash = rt_hash(daddr, saddr, iif);
rcu_read_lock();
for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
- rth = rcu_dereference(rth->u.rt_next)) {
+ rth = rcu_dereference(rth->u.dst.rt_next)) {
if (rth->fl.fl4_dst == daddr &&
rth->fl.fl4_src == saddr &&
rth->fl.iif == iif &&
rth->fl.oif == 0 &&
-#ifdef CONFIG_IP_ROUTE_FWMARK
- rth->fl.fl4_fwmark == skb->nfmark &&
-#endif
+ rth->fl.mark == skb->mark &&
rth->fl.fl4_tos == tos) {
rth->u.dst.lastuse = jiffies;
dst_hold(&rth->u.dst);
rcu_read_lock();
if ((in_dev = __in_dev_get_rcu(dev)) != NULL) {
int our = ip_check_mc(in_dev, daddr, saddr,
- skb->nh.iph->protocol);
+ ip_hdr(skb)->protocol);
if (our
#ifdef CONFIG_IP_MROUTE
|| (!LOCAL_MCAST(daddr) && IN_DEV_MFORWARD(in_dev))
}
static inline int __mkroute_output(struct rtable **result,
- struct fib_result* res,
+ struct fib_result* res,
const struct flowi *fl,
- const struct flowi *oldflp,
- struct net_device *dev_out,
- unsigned flags)
+ const struct flowi *oldflp,
+ struct net_device *dev_out,
+ unsigned flags)
{
struct rtable *rth;
struct in_device *in_dev;
if (LOOPBACK(fl->fl4_src) && !(dev_out->flags&IFF_LOOPBACK))
return -EINVAL;
- if (fl->fl4_dst == 0xFFFFFFFF)
+ if (fl->fl4_dst == htonl(0xFFFFFFFF))
res->type = RTN_BROADCAST;
else if (MULTICAST(fl->fl4_dst))
res->type = RTN_MULTICAST;
}
} else if (res->type == RTN_MULTICAST) {
flags |= RTCF_MULTICAST|RTCF_LOCAL;
- if (!ip_check_mc(in_dev, oldflp->fl4_dst, oldflp->fl4_src,
+ if (!ip_check_mc(in_dev, oldflp->fl4_dst, oldflp->fl4_src,
oldflp->proto))
flags &= ~RTCF_LOCAL;
/* If multicast route do not exist use
if (!rth) {
err = -ENOBUFS;
goto cleanup;
- }
+ }
atomic_set(&rth->u.dst.__refcnt, 1);
rth->u.dst.flags= DST_HOST;
rth->fl.fl4_tos = tos;
rth->fl.fl4_src = oldflp->fl4_src;
rth->fl.oif = oldflp->oif;
-#ifdef CONFIG_IP_ROUTE_FWMARK
- rth->fl.fl4_fwmark= oldflp->fl4_fwmark;
-#endif
+ rth->fl.mark = oldflp->mark;
rth->rt_dst = fl->fl4_dst;
rth->rt_src = fl->fl4_src;
rth->rt_iif = oldflp->oif ? : dev_out->ifindex;
- /* get references to the devices that are to be hold by the routing
+ /* get references to the devices that are to be hold by the routing
cache entry */
rth->u.dst.dev = dev_out;
dev_hold(dev_out);
}
if (flags & (RTCF_BROADCAST | RTCF_MULTICAST)) {
rth->rt_spec_dst = fl->fl4_src;
- if (flags & RTCF_LOCAL &&
+ if (flags & RTCF_LOCAL &&
!(dev_out->flags & IFF_LOOPBACK)) {
rth->u.dst.output = ip_mc_output;
RT_CACHE_STAT_INC(out_slow_mc);
int err = __mkroute_output(&rth, res, fl, oldflp, dev_out, flags);
unsigned hash;
if (err == 0) {
- hash = rt_hash_code(oldflp->fl4_dst,
- oldflp->fl4_src ^ (oldflp->oif << 5));
+ hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src, oldflp->oif);
err = rt_intern_hash(hash, rth, rp);
}
-
+
return err;
}
if (err != 0)
goto cleanup;
- hash = rt_hash_code(oldflp->fl4_dst,
- oldflp->fl4_src ^
- (oldflp->oif << 5));
+ hash = rt_hash(oldflp->fl4_dst, oldflp->fl4_src,
+ oldflp->oif);
err = rt_intern_hash(hash, rth, rp);
/* forward hop information to multipath impl. */
.scope = ((tos & RTO_ONLINK) ?
RT_SCOPE_LINK :
RT_SCOPE_UNIVERSE),
-#ifdef CONFIG_IP_ROUTE_FWMARK
- .fwmark = oldflp->fl4_fwmark
-#endif
} },
+ .mark = oldflp->mark,
.iif = loopback_dev.ifindex,
.oif = oldflp->oif };
struct fib_result res;
*/
if (oldflp->oif == 0
- && (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == 0xFFFFFFFF)) {
+ && (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
/* Special hack: user can direct multicasts
and limited broadcast via necessary interface
without fiddling with IP_MULTICAST_IF or IP_PKTINFO.
goto out; /* Wrong error code */
}
- if (LOCAL_MCAST(oldflp->fl4_dst) || oldflp->fl4_dst == 0xFFFFFFFF) {
+ if (LOCAL_MCAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF)) {
if (!fl.fl4_src)
fl.fl4_src = inet_select_addr(dev_out, 0,
RT_SCOPE_LINK);
unsigned hash;
struct rtable *rth;
- hash = rt_hash_code(flp->fl4_dst, flp->fl4_src ^ (flp->oif << 5));
+ hash = rt_hash(flp->fl4_dst, flp->fl4_src, flp->oif);
rcu_read_lock_bh();
for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
- rth = rcu_dereference(rth->u.rt_next)) {
+ rth = rcu_dereference(rth->u.dst.rt_next)) {
if (rth->fl.fl4_dst == flp->fl4_dst &&
rth->fl.fl4_src == flp->fl4_src &&
rth->fl.iif == 0 &&
rth->fl.oif == flp->oif &&
-#ifdef CONFIG_IP_ROUTE_FWMARK
- rth->fl.fl4_fwmark == flp->fl4_fwmark &&
-#endif
+ rth->fl.mark == flp->mark &&
!((rth->fl.fl4_tos ^ flp->fl4_tos) &
(IPTOS_RT_MASK | RTO_ONLINK))) {
struct rtable *rt = (struct rtable*)skb->dst;
struct rtmsg *r;
struct nlmsghdr *nlh;
- struct rta_cacheinfo ci;
+ long expires;
+ u32 id = 0, ts = 0, tsage = 0, error;
nlh = nlmsg_put(skb, pid, seq, event, sizeof(*r), flags);
if (nlh == NULL)
- return -ENOBUFS;
+ return -EMSGSIZE;
r = nlmsg_data(nlh);
r->rtm_family = AF_INET;
if (rt->rt_flags & RTCF_NOTIFY)
r->rtm_flags |= RTM_F_NOTIFY;
- NLA_PUT_U32(skb, RTA_DST, rt->rt_dst);
+ NLA_PUT_BE32(skb, RTA_DST, rt->rt_dst);
if (rt->fl.fl4_src) {
r->rtm_src_len = 32;
- NLA_PUT_U32(skb, RTA_SRC, rt->fl.fl4_src);
+ NLA_PUT_BE32(skb, RTA_SRC, rt->fl.fl4_src);
}
if (rt->u.dst.dev)
NLA_PUT_U32(skb, RTA_OIF, rt->u.dst.dev->ifindex);
NLA_PUT_U32(skb, RTA_MP_ALGO, rt->rt_multipath_alg);
#endif
if (rt->fl.iif)
- NLA_PUT_U32(skb, RTA_PREFSRC, rt->rt_spec_dst);
+ NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_spec_dst);
else if (rt->rt_src != rt->fl.fl4_src)
- NLA_PUT_U32(skb, RTA_PREFSRC, rt->rt_src);
+ NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_src);
if (rt->rt_dst != rt->rt_gateway)
- NLA_PUT_U32(skb, RTA_GATEWAY, rt->rt_gateway);
+ NLA_PUT_BE32(skb, RTA_GATEWAY, rt->rt_gateway);
if (rtnetlink_put_metrics(skb, rt->u.dst.metrics) < 0)
goto nla_put_failure;
- ci.rta_lastuse = jiffies_to_clock_t(jiffies - rt->u.dst.lastuse);
- ci.rta_used = rt->u.dst.__use;
- ci.rta_clntref = atomic_read(&rt->u.dst.__refcnt);
- if (rt->u.dst.expires)
- ci.rta_expires = jiffies_to_clock_t(rt->u.dst.expires - jiffies);
- else
- ci.rta_expires = 0;
- ci.rta_error = rt->u.dst.error;
- ci.rta_id = ci.rta_ts = ci.rta_tsage = 0;
+ error = rt->u.dst.error;
+ expires = rt->u.dst.expires ? rt->u.dst.expires - jiffies : 0;
if (rt->peer) {
- ci.rta_id = rt->peer->ip_id_count;
+ id = rt->peer->ip_id_count;
if (rt->peer->tcp_ts_stamp) {
- ci.rta_ts = rt->peer->tcp_ts;
- ci.rta_tsage = xtime.tv_sec - rt->peer->tcp_ts_stamp;
+ ts = rt->peer->tcp_ts;
+ tsage = get_seconds() - rt->peer->tcp_ts_stamp;
}
}
if (rt->fl.iif) {
#ifdef CONFIG_IP_MROUTE
- u32 dst = rt->rt_dst;
+ __be32 dst = rt->rt_dst;
if (MULTICAST(dst) && !LOCAL_MCAST(dst) &&
ipv4_devconf.mc_forwarding) {
} else {
if (err == -EMSGSIZE)
goto nla_put_failure;
- ci.rta_error = err;
+ error = err;
}
}
} else
NLA_PUT_U32(skb, RTA_IIF, rt->fl.iif);
}
- NLA_PUT(skb, RTA_CACHEINFO, sizeof(ci), &ci);
+ if (rtnl_put_cacheinfo(skb, &rt->u.dst, id, ts, tsage,
+ expires, error) < 0)
+ goto nla_put_failure;
return nlmsg_end(skb, nlh);
nla_put_failure:
- return nlmsg_cancel(skb, nlh);
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
}
int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
struct rtmsg *rtm;
struct nlattr *tb[RTA_MAX+1];
struct rtable *rt = NULL;
- u32 dst, src, iif;
+ __be32 dst = 0;
+ __be32 src = 0;
+ u32 iif;
int err;
struct sk_buff *skb;
/* Reserve room for dummy headers, this skb can pass
through good chunk of routing engine.
*/
- skb->mac.raw = skb->nh.raw = skb->data;
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
/* Bugfix: need to give ip_route_input enough of an IP header to not gag. */
- skb->nh.iph->protocol = IPPROTO_ICMP;
+ ip_hdr(skb)->protocol = IPPROTO_ICMP;
skb_reserve(skb, MAX_HEADER + sizeof(struct iphdr));
- src = tb[RTA_SRC] ? nla_get_u32(tb[RTA_SRC]) : 0;
- dst = tb[RTA_DST] ? nla_get_u32(tb[RTA_DST]) : 0;
+ src = tb[RTA_SRC] ? nla_get_be32(tb[RTA_SRC]) : 0;
+ dst = tb[RTA_DST] ? nla_get_be32(tb[RTA_DST]) : 0;
iif = tb[RTA_IIF] ? nla_get_u32(tb[RTA_IIF]) : 0;
if (iif) {
s_idx = 0;
rcu_read_lock_bh();
for (rt = rcu_dereference(rt_hash_table[h].chain), idx = 0; rt;
- rt = rcu_dereference(rt->u.rt_next), idx++) {
+ rt = rcu_dereference(rt->u.dst.rt_next), idx++) {
if (idx < s_idx)
continue;
skb->dst = dst_clone(&rt->u.dst);
if (rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, RTM_NEWROUTE,
+ cb->nlh->nlmsg_seq, RTM_NEWROUTE,
1, NLM_F_MULTI) <= 0) {
dst_release(xchg(&skb->dst, NULL));
rcu_read_unlock_bh();
proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
rt_cache_flush(flush_delay);
return 0;
- }
+ }
return -EINVAL;
}
void __user *oldval,
size_t __user *oldlenp,
void __user *newval,
- size_t newlen,
- void **context)
+ size_t newlen)
{
int delay;
if (newlen != sizeof(int))
return -EINVAL;
if (get_user(delay, (int __user *)newval))
- return -EFAULT;
- rt_cache_flush(delay);
+ return -EFAULT;
+ rt_cache_flush(delay);
return 0;
}
ctl_table ipv4_route_table[] = {
- {
+ {
.ctl_name = NET_IPV4_ROUTE_FLUSH,
.procname = "flush",
.data = &flush_delay,
},
{
/* Deprecated. Use gc_min_interval_ms */
-
+
.ctl_name = NET_IPV4_ROUTE_GC_MIN_INTERVAL,
.procname = "gc_min_interval",
.data = &ip_rt_gc_min_interval,
{
struct proc_dir_entry *rtstat_pde = NULL; /* keep gcc happy */
if (!proc_net_fops_create("rt_cache", S_IRUGO, &rt_cache_seq_fops) ||
- !(rtstat_pde = create_proc_entry("rt_cache", S_IRUGO,
- proc_net_stat))) {
+ !(rtstat_pde = create_proc_entry("rt_cache", S_IRUGO,
+ proc_net_stat))) {
return -ENOMEM;
}
rtstat_pde->proc_fops = &rt_cpu_seq_fops;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff