[TCP]: Fix NewReno's fast rexmit/recovery problems with GSOed skb
[safe/jmp/linux-2.6] / net / ipv4 / raw.c
index 747911a..a3002fe 100644 (file)
@@ -116,16 +116,15 @@ static void raw_v4_unhash(struct sock *sk)
        raw_unhash_sk(sk, &raw_v4_hashinfo);
 }
 
-static struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
-                            __be32 raddr, __be32 laddr,
-                            int dif)
+static struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
+               unsigned short num, __be32 raddr, __be32 laddr, int dif)
 {
        struct hlist_node *node;
 
        sk_for_each_from(sk, node) {
                struct inet_sock *inet = inet_sk(sk);
 
-               if (inet->num == num                                    &&
+               if (sk->sk_net == net && inet->num == num               &&
                    !(inet->daddr && inet->daddr != raddr)              &&
                    !(inet->rcv_saddr && inet->rcv_saddr != laddr)      &&
                    !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
@@ -169,12 +168,15 @@ static int raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash)
        struct sock *sk;
        struct hlist_head *head;
        int delivered = 0;
+       struct net *net;
 
        read_lock(&raw_v4_hashinfo.lock);
        head = &raw_v4_hashinfo.ht[hash];
        if (hlist_empty(head))
                goto out;
-       sk = __raw_v4_lookup(__sk_head(head), iph->protocol,
+
+       net = skb->dev->nd_net;
+       sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol,
                             iph->saddr, iph->daddr,
                             skb->dev->ifindex);
 
@@ -187,7 +189,7 @@ static int raw_v4_input(struct sk_buff *skb, struct iphdr *iph, int hash)
                        if (clone)
                                raw_rcv(sk, clone);
                }
-               sk = __raw_v4_lookup(sk_next(sk), iph->protocol,
+               sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol,
                                     iph->saddr, iph->daddr,
                                     skb->dev->ifindex);
        }
@@ -273,6 +275,7 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
        int hash;
        struct sock *raw_sk;
        struct iphdr *iph;
+       struct net *net;
 
        hash = protocol & (RAW_HTABLE_SIZE - 1);
 
@@ -280,8 +283,10 @@ void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info)
        raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]);
        if (raw_sk != NULL) {
                iph = (struct iphdr *)skb->data;
-               while ((raw_sk = __raw_v4_lookup(raw_sk, protocol, iph->daddr,
-                                               iph->saddr,
+               net = skb->dev->nd_net;
+
+               while ((raw_sk = __raw_v4_lookup(net, raw_sk, protocol,
+                                               iph->daddr, iph->saddr,
                                                skb->dev->ifindex)) != NULL) {
                        raw_err(raw_sk, skb, info);
                        raw_sk = sk_next(raw_sk);
@@ -347,6 +352,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
        skb_reserve(skb, hh_len);
 
        skb->priority = sk->sk_priority;
+       skb->mark = sk->sk_mark;
        skb->dst = dst_clone(&rt->u.dst);
 
        skb_reset_network_header(skb);
@@ -539,6 +545,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
        {
                struct flowi fl = { .oif = ipc.oif,
+                                   .mark = sk->sk_mark,
                                    .nl_u = { .ip4_u =
                                              { .daddr = daddr,
                                                .saddr = saddr,
@@ -553,7 +560,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
                }
 
                security_sk_classify_flow(sk, &fl);
-               err = ip_route_output_flow(&rt, &fl, sk, 1);
+               err = ip_route_output_flow(&init_net, &rt, &fl, sk, 1);
        }
        if (err)
                goto done;
@@ -620,7 +627,7 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 
        if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
                goto out;
-       chk_addr_ret = inet_addr_type(&init_net, addr->sin_addr.s_addr);
+       chk_addr_ret = inet_addr_type(sk->sk_net, addr->sin_addr.s_addr);
        ret = -EADDRNOTAVAIL;
        if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
            chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
@@ -855,7 +862,7 @@ static struct sock *raw_get_first(struct seq_file *seq)
                struct hlist_node *node;
 
                sk_for_each(sk, node, &state->h->ht[state->bucket])
-                       if (sk->sk_family == state->family)
+                       if (sk->sk_net == state->p.net)
                                goto found;
        }
        sk = NULL;
@@ -871,7 +878,7 @@ static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
                sk = sk_next(sk);
 try_again:
                ;
-       } while (sk && sk->sk_family != state->family);
+       } while (sk && sk->sk_net != state->p.net);
 
        if (!sk && ++state->bucket < RAW_HTABLE_SIZE) {
                sk = sk_head(&state->h->ht[state->bucket]);
@@ -920,7 +927,7 @@ void raw_seq_stop(struct seq_file *seq, void *v)
 }
 EXPORT_SYMBOL_GPL(raw_seq_stop);
 
-static __inline__ char *get_raw_sock(struct sock *sp, char *tmpbuf, int i)
+static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
 {
        struct inet_sock *inet = inet_sk(sp);
        __be32 dest = inet->daddr,
@@ -928,33 +935,23 @@ static __inline__ char *get_raw_sock(struct sock *sp, char *tmpbuf, int i)
        __u16 destp = 0,
              srcp  = inet->num;
 
-       sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
+       seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d",
                i, src, srcp, dest, destp, sp->sk_state,
                atomic_read(&sp->sk_wmem_alloc),
                atomic_read(&sp->sk_rmem_alloc),
                0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
                atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
-       return tmpbuf;
 }
 
-#define TMPSZ 128
-
 static int raw_seq_show(struct seq_file *seq, void *v)
 {
-       char tmpbuf[TMPSZ+1];
-
        if (v == SEQ_START_TOKEN)
-               seq_printf(seq, "%-*s\n", TMPSZ-1,
-                              "  sl  local_address rem_address   st tx_queue "
-                              "rx_queue tr tm->when retrnsmt   uid  timeout "
-                              "inode  drops");
-       else {
-               struct raw_iter_state *state = raw_seq_private(seq);
-
-               seq_printf(seq, "%-*s\n", TMPSZ-1,
-                          get_raw_sock(v, tmpbuf, state->bucket));
-       }
+               seq_printf(seq, "  sl  local_address rem_address   st tx_queue "
+                               "rx_queue tr tm->when retrnsmt   uid  timeout "
+                               "inode  drops\n");
+       else
+               raw_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
        return 0;
 }
 
@@ -965,25 +962,25 @@ static const struct seq_operations raw_seq_ops = {
        .show  = raw_seq_show,
 };
 
-int raw_seq_open(struct file *file, struct raw_hashinfo *h,
-               unsigned short family)
+int raw_seq_open(struct inode *ino, struct file *file,
+                struct raw_hashinfo *h, const struct seq_operations *ops)
 {
+       int err;
        struct raw_iter_state *i;
 
-       i = __seq_open_private(file, &raw_seq_ops,
-                       sizeof(struct raw_iter_state));
-       if (i == NULL)
-               return -ENOMEM;
+       err = seq_open_net(ino, file, ops, sizeof(struct raw_iter_state));
+       if (err < 0)
+               return err;
 
+       i = raw_seq_private((struct seq_file *)file->private_data);
        i->h = h;
-       i->family = family;
        return 0;
 }
 EXPORT_SYMBOL_GPL(raw_seq_open);
 
 static int raw_v4_seq_open(struct inode *inode, struct file *file)
 {
-       return raw_seq_open(file, &raw_v4_hashinfo, PF_INET);
+       return raw_seq_open(inode, file, &raw_v4_hashinfo, &raw_seq_ops);
 }
 
 static const struct file_operations raw_seq_fops = {
@@ -991,18 +988,34 @@ static const struct file_operations raw_seq_fops = {
        .open    = raw_v4_seq_open,
        .read    = seq_read,
        .llseek  = seq_lseek,
-       .release = seq_release_private,
+       .release = seq_release_net,
 };
 
-int __init raw_proc_init(void)
+static __net_init int raw_init_net(struct net *net)
 {
-       if (!proc_net_fops_create(&init_net, "raw", S_IRUGO, &raw_seq_fops))
+       if (!proc_net_fops_create(net, "raw", S_IRUGO, &raw_seq_fops))
                return -ENOMEM;
+
        return 0;
 }
 
+static __net_exit void raw_exit_net(struct net *net)
+{
+       proc_net_remove(net, "raw");
+}
+
+static __net_initdata struct pernet_operations raw_net_ops = {
+       .init = raw_init_net,
+       .exit = raw_exit_net,
+};
+
+int __init raw_proc_init(void)
+{
+       return register_pernet_subsys(&raw_net_ops);
+}
+
 void __init raw_proc_exit(void)
 {
-       proc_net_remove(&init_net, "raw");
+       unregister_pernet_subsys(&raw_net_ops);
 }
 #endif /* CONFIG_PROC_FS */