forked from luck/tmp_suning_uos_patched
ipv4: Remove inetpeer from routes.
No longer used. Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
312487313d
commit
f185071ddf
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@ -40,7 +40,6 @@
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#define RT_CONN_FLAGS(sk) (RT_TOS(inet_sk(sk)->tos) | sock_flag(sk, SOCK_LOCALROUTE))
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struct fib_nh;
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struct inet_peer;
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struct fib_info;
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struct rtable {
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struct dst_entry dst;
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@ -66,44 +65,9 @@ struct rtable {
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/* Miscellaneous cached information */
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u32 rt_pmtu;
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unsigned long _peer; /* long-living peer info */
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struct fib_info *fi; /* for client ref to shared metrics */
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};
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static inline struct inet_peer *rt_peer_ptr(struct rtable *rt)
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{
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return inetpeer_ptr(rt->_peer);
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}
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static inline bool rt_has_peer(struct rtable *rt)
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{
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return inetpeer_ptr_is_peer(rt->_peer);
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}
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static inline void __rt_set_peer(struct rtable *rt, struct inet_peer *peer)
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{
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__inetpeer_ptr_set_peer(&rt->_peer, peer);
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}
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static inline bool rt_set_peer(struct rtable *rt, struct inet_peer *peer)
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{
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return inetpeer_ptr_set_peer(&rt->_peer, peer);
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}
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static inline void rt_init_peer(struct rtable *rt, struct inet_peer_base *base)
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{
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inetpeer_init_ptr(&rt->_peer, base);
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}
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static inline void rt_transfer_peer(struct rtable *rt, struct rtable *ort)
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{
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rt->_peer = ort->_peer;
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if (rt_has_peer(ort)) {
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struct inet_peer *peer = rt_peer_ptr(ort);
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atomic_inc(&peer->refcnt);
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}
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}
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static inline bool rt_is_input_route(const struct rtable *rt)
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{
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return rt->rt_route_iif != 0;
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@ -326,27 +290,6 @@ static inline struct rtable *ip_route_newports(struct flowi4 *fl4, struct rtable
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return rt;
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}
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extern void rt_bind_peer(struct rtable *rt, __be32 daddr, int create);
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static inline struct inet_peer *__rt_get_peer(struct rtable *rt, __be32 daddr, int create)
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{
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if (rt_has_peer(rt))
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return rt_peer_ptr(rt);
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rt_bind_peer(rt, daddr, create);
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return (rt_has_peer(rt) ? rt_peer_ptr(rt) : NULL);
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}
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static inline struct inet_peer *rt_get_peer(struct rtable *rt, __be32 daddr)
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{
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return __rt_get_peer(rt, daddr, 0);
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}
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static inline struct inet_peer *rt_get_peer_create(struct rtable *rt, __be32 daddr)
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{
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return __rt_get_peer(rt, daddr, 1);
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}
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static inline int inet_iif(const struct sk_buff *skb)
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{
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return skb_rtable(skb)->rt_iif;
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@ -889,7 +889,6 @@ static void rt_cache_invalidate(struct net *net)
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get_random_bytes(&shuffle, sizeof(shuffle));
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atomic_add(shuffle + 1U, &net->ipv4.rt_genid);
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inetpeer_invalidate_family(AF_INET);
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}
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/*
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@ -1216,22 +1215,6 @@ static struct rtable *rt_intern_hash(unsigned int hash, struct rtable *rt,
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return rt;
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}
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void rt_bind_peer(struct rtable *rt, __be32 daddr, int create)
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{
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struct inet_peer_base *base;
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struct inet_peer *peer;
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base = inetpeer_base_ptr(rt->_peer);
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if (!base)
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return;
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peer = inet_getpeer_v4(base, daddr, create);
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if (peer) {
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if (!rt_set_peer(rt, peer))
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inet_putpeer(peer);
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}
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}
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/*
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* Peer allocation may fail only in serious out-of-memory conditions. However
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* we still can generate some output.
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@ -1588,10 +1571,6 @@ static void ipv4_dst_destroy(struct dst_entry *dst)
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fib_info_put(rt->fi);
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rt->fi = NULL;
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}
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if (rt_has_peer(rt)) {
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struct inet_peer *peer = rt_peer_ptr(rt);
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inet_putpeer(peer);
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}
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}
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@ -1711,26 +1690,11 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst)
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static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4,
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struct fib_info *fi)
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{
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struct inet_peer_base *base;
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struct inet_peer *peer;
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base = inetpeer_base_ptr(rt->_peer);
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BUG_ON(!base);
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peer = inet_getpeer_v4(base, rt->rt_dst, 0);
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if (peer) {
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__rt_set_peer(rt, peer);
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if (inet_metrics_new(peer))
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memcpy(peer->metrics, fi->fib_metrics,
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sizeof(u32) * RTAX_MAX);
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dst_init_metrics(&rt->dst, peer->metrics, false);
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} else {
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if (fi->fib_metrics != (u32 *) dst_default_metrics) {
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rt->fi = fi;
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atomic_inc(&fi->fib_clntref);
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}
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dst_init_metrics(&rt->dst, fi->fib_metrics, true);
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if (fi->fib_metrics != (u32 *) dst_default_metrics) {
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rt->fi = fi;
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atomic_inc(&fi->fib_clntref);
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}
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dst_init_metrics(&rt->dst, fi->fib_metrics, true);
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}
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static void rt_set_nexthop(struct rtable *rt, const struct flowi4 *fl4,
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@ -1820,7 +1784,6 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
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rth->rt_mark = skb->mark;
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rth->rt_pmtu = 0;
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rth->rt_gateway = daddr;
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rt_init_peer(rth, dev_net(dev)->ipv4.peers);
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rth->fi = NULL;
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if (our) {
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rth->dst.input= ip_local_deliver;
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@ -1946,7 +1909,6 @@ static int __mkroute_input(struct sk_buff *skb,
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rth->rt_mark = skb->mark;
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rth->rt_pmtu = 0;
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rth->rt_gateway = daddr;
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rt_init_peer(rth, &res->table->tb_peers);
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rth->fi = NULL;
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rth->dst.input = ip_forward;
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@ -2125,7 +2087,6 @@ out: return err;
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rth->rt_mark = skb->mark;
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rth->rt_pmtu = 0;
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rth->rt_gateway = daddr;
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rt_init_peer(rth, net->ipv4.peers);
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rth->fi = NULL;
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if (res.type == RTN_UNREACHABLE) {
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rth->dst.input= ip_error;
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@ -2323,9 +2284,6 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
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rth->rt_mark = fl4->flowi4_mark;
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rth->rt_pmtu = 0;
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rth->rt_gateway = fl4->daddr;
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rt_init_peer(rth, (res->table ?
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&res->table->tb_peers :
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dev_net(dev_out)->ipv4.peers));
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rth->fi = NULL;
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RT_CACHE_STAT_INC(out_slow_tot);
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@ -2662,7 +2620,6 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
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rt->rt_dst = ort->rt_dst;
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rt->rt_src = ort->rt_src;
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rt->rt_gateway = ort->rt_gateway;
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rt_transfer_peer(rt, ort);
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rt->fi = ort->fi;
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if (rt->fi)
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atomic_inc(&rt->fi->fib_clntref);
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@ -2700,7 +2657,7 @@ static int rt_fill_info(struct net *net,
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struct rtmsg *r;
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struct nlmsghdr *nlh;
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unsigned long expires = 0;
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u32 id = 0, error;
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u32 error;
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nlh = nlmsg_put(skb, pid, seq, event, sizeof(*r), flags);
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if (nlh == NULL)
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@ -2753,11 +2710,6 @@ static int rt_fill_info(struct net *net,
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goto nla_put_failure;
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error = rt->dst.error;
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if (rt_has_peer(rt)) {
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const struct inet_peer *peer = rt_peer_ptr(rt);
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inet_peer_refcheck(peer);
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id = atomic_read(&peer->ip_id_count) & 0xffff;
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}
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expires = rt->dst.expires;
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if (expires) {
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if (time_before(jiffies, expires))
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@ -2792,7 +2744,7 @@ static int rt_fill_info(struct net *net,
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goto nla_put_failure;
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}
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if (rtnl_put_cacheinfo(skb, &rt->dst, id, expires, error) < 0)
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if (rtnl_put_cacheinfo(skb, &rt->dst, 0, expires, error) < 0)
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goto nla_put_failure;
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return nlmsg_end(skb, nlh);
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@ -90,8 +90,6 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
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xdst->u.dst.dev = dev;
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dev_hold(dev);
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rt_transfer_peer(&xdst->u.rt, rt);
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/* Sheit... I remember I did this right. Apparently,
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* it was magically lost, so this code needs audit */
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xdst->u.rt.rt_flags = rt->rt_flags & (RTCF_BROADCAST | RTCF_MULTICAST |
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dst_destroy_metrics_generic(dst);
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if (rt_has_peer(&xdst->u.rt)) {
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struct inet_peer *peer = rt_peer_ptr(&xdst->u.rt);
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inet_putpeer(peer);
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}
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xfrm_dst_destroy(xdst);
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}
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