diff options
Diffstat (limited to 'net/ipv4')
73 files changed, 1639 insertions, 1361 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 24eca23c2db..dd919d84285 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -5,8 +5,6 @@ * * PF_INET protocol family socket handler. * - * Version: $Id: af_inet.c,v 1.137 2002/02/01 22:01:03 davem Exp $ - * * Authors: Ross Biro * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * Florian La Roche, <flla@stud.uni-sb.de> @@ -112,12 +110,11 @@ #include <net/ipip.h> #include <net/inet_common.h> #include <net/xfrm.h> +#include <net/net_namespace.h> #ifdef CONFIG_IP_MROUTE #include <linux/mroute.h> #endif -DEFINE_SNMP_STAT(struct linux_mib, net_statistics) __read_mostly; - extern void ip_mc_drop_socket(struct sock *sk); /* The inetsw table contains everything that inet_create needs to @@ -1341,50 +1338,70 @@ static struct net_protocol icmp_protocol = { .netns_ok = 1, }; -static int __init init_ipv4_mibs(void) +static __net_init int ipv4_mib_init_net(struct net *net) { - if (snmp_mib_init((void **)net_statistics, - sizeof(struct linux_mib)) < 0) - goto err_net_mib; - if (snmp_mib_init((void **)ip_statistics, - sizeof(struct ipstats_mib)) < 0) - goto err_ip_mib; - if (snmp_mib_init((void **)icmp_statistics, - sizeof(struct icmp_mib)) < 0) - goto err_icmp_mib; - if (snmp_mib_init((void **)icmpmsg_statistics, - sizeof(struct icmpmsg_mib)) < 0) - goto err_icmpmsg_mib; - if (snmp_mib_init((void **)tcp_statistics, + if (snmp_mib_init((void **)net->mib.tcp_statistics, sizeof(struct tcp_mib)) < 0) goto err_tcp_mib; - if (snmp_mib_init((void **)udp_statistics, + if (snmp_mib_init((void **)net->mib.ip_statistics, + sizeof(struct ipstats_mib)) < 0) + goto err_ip_mib; + if (snmp_mib_init((void **)net->mib.net_statistics, + sizeof(struct linux_mib)) < 0) + goto err_net_mib; + if (snmp_mib_init((void **)net->mib.udp_statistics, sizeof(struct udp_mib)) < 0) goto err_udp_mib; - if (snmp_mib_init((void **)udplite_statistics, + if (snmp_mib_init((void **)net->mib.udplite_statistics, sizeof(struct udp_mib)) < 0) goto err_udplite_mib; + if (snmp_mib_init((void **)net->mib.icmp_statistics, + sizeof(struct icmp_mib)) < 0) + goto err_icmp_mib; + if (snmp_mib_init((void **)net->mib.icmpmsg_statistics, + sizeof(struct icmpmsg_mib)) < 0) + goto err_icmpmsg_mib; - tcp_mib_init(); - + tcp_mib_init(net); return 0; -err_udplite_mib: - snmp_mib_free((void **)udp_statistics); -err_udp_mib: - snmp_mib_free((void **)tcp_statistics); -err_tcp_mib: - snmp_mib_free((void **)icmpmsg_statistics); err_icmpmsg_mib: - snmp_mib_free((void **)icmp_statistics); + snmp_mib_free((void **)net->mib.icmp_statistics); err_icmp_mib: - snmp_mib_free((void **)ip_statistics); -err_ip_mib: - snmp_mib_free((void **)net_statistics); + snmp_mib_free((void **)net->mib.udplite_statistics); +err_udplite_mib: + snmp_mib_free((void **)net->mib.udp_statistics); +err_udp_mib: + snmp_mib_free((void **)net->mib.net_statistics); err_net_mib: + snmp_mib_free((void **)net->mib.ip_statistics); +err_ip_mib: + snmp_mib_free((void **)net->mib.tcp_statistics); +err_tcp_mib: return -ENOMEM; } +static __net_exit void ipv4_mib_exit_net(struct net *net) +{ + snmp_mib_free((void **)net->mib.icmpmsg_statistics); + snmp_mib_free((void **)net->mib.icmp_statistics); + snmp_mib_free((void **)net->mib.udplite_statistics); + snmp_mib_free((void **)net->mib.udp_statistics); + snmp_mib_free((void **)net->mib.net_statistics); + snmp_mib_free((void **)net->mib.ip_statistics); + snmp_mib_free((void **)net->mib.tcp_statistics); +} + +static __net_initdata struct pernet_operations ipv4_mib_ops = { + .init = ipv4_mib_init_net, + .exit = ipv4_mib_exit_net, +}; + +static int __init init_ipv4_mibs(void) +{ + return register_pernet_subsys(&ipv4_mib_ops); +} + static int ipv4_proc_init(void); /* @@ -1481,14 +1498,15 @@ static int __init inet_init(void) * Initialise the multicast router */ #if defined(CONFIG_IP_MROUTE) - ip_mr_init(); + if (ip_mr_init()) + printk(KERN_CRIT "inet_init: Cannot init ipv4 mroute\n"); #endif /* * Initialise per-cpu ipv4 mibs */ if (init_ipv4_mibs()) - printk(KERN_CRIT "inet_init: Cannot init ipv4 mibs\n"); ; + printk(KERN_CRIT "inet_init: Cannot init ipv4 mibs\n"); ipv4_proc_init(); @@ -1560,5 +1578,4 @@ EXPORT_SYMBOL(inet_sock_destruct); EXPORT_SYMBOL(inet_stream_connect); EXPORT_SYMBOL(inet_stream_ops); EXPORT_SYMBOL(inet_unregister_protosw); -EXPORT_SYMBOL(net_statistics); EXPORT_SYMBOL(sysctl_ip_nonlocal_bind); diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index 9b539fa9fe1..b043eda60b0 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -1,7 +1,5 @@ /* linux/net/ipv4/arp.c * - * Version: $Id: arp.c,v 1.99 2001/08/30 22:55:42 davem Exp $ - * * Copyright (C) 1994 by Florian La Roche * * This module implements the Address Resolution Protocol ARP (RFC 826), @@ -423,11 +421,12 @@ static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev) struct rtable *rt; int flag = 0; /*unsigned long now; */ + struct net *net = dev_net(dev); - if (ip_route_output_key(dev_net(dev), &rt, &fl) < 0) + if (ip_route_output_key(net, &rt, &fl) < 0) return 1; if (rt->u.dst.dev != dev) { - NET_INC_STATS_BH(LINUX_MIB_ARPFILTER); + NET_INC_STATS_BH(net, LINUX_MIB_ARPFILTER); flag = 1; } ip_rt_put(rt); @@ -1199,7 +1198,7 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event, vo switch (event) { case NETDEV_CHANGEADDR: neigh_changeaddr(&arp_tbl, dev); - rt_cache_flush(0); + rt_cache_flush(dev_net(dev), 0); break; default: break; diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c index 0c0c73f368c..5e6c5a0f3fd 100644 --- a/net/ipv4/datagram.c +++ b/net/ipv4/datagram.c @@ -52,7 +52,7 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len) inet->sport, usin->sin_port, sk, 1); if (err) { if (err == -ENETUNREACH) - IP_INC_STATS_BH(IPSTATS_MIB_OUTNOROUTES); + IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES); return err; } diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 79a7ef6209f..2e667e2f90d 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1,8 +1,6 @@ /* * NET3 IP device support routines. * - * Version: $Id: devinet.c,v 1.44 2001/10/31 21:55:54 davem Exp $ - * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version @@ -170,6 +168,8 @@ static struct in_device *inetdev_init(struct net_device *dev) in_dev->dev = dev; if ((in_dev->arp_parms = neigh_parms_alloc(dev, &arp_tbl)) == NULL) goto out_kfree; + if (IPV4_DEVCONF(in_dev->cnf, FORWARDING)) + dev_disable_lro(dev); /* Reference in_dev->dev */ dev_hold(dev); /* Account for reference dev->ip_ptr (below) */ @@ -1013,7 +1013,7 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev) memcpy(old, ifa->ifa_label, IFNAMSIZ); memcpy(ifa->ifa_label, dev->name, IFNAMSIZ); if (named++ == 0) - continue; + goto skip; dot = strchr(old, ':'); if (dot == NULL) { sprintf(old, ":%d", named); @@ -1024,6 +1024,8 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev) } else { strcpy(ifa->ifa_label + (IFNAMSIZ - strlen(dot) - 1), dot); } +skip: + rtmsg_ifa(RTM_NEWADDR, ifa, NULL, 0); } } @@ -1241,6 +1243,8 @@ static void inet_forward_change(struct net *net) read_lock(&dev_base_lock); for_each_netdev(net, dev) { struct in_device *in_dev; + if (on) + dev_disable_lro(dev); rcu_read_lock(); in_dev = __in_dev_get_rcu(dev); if (in_dev) @@ -1248,8 +1252,6 @@ static void inet_forward_change(struct net *net) rcu_read_unlock(); } read_unlock(&dev_base_lock); - - rt_cache_flush(0); } static int devinet_conf_proc(ctl_table *ctl, int write, @@ -1335,10 +1337,19 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write, if (write && *valp != val) { struct net *net = ctl->extra2; - if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) - inet_forward_change(net); - else if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) - rt_cache_flush(0); + if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) { + rtnl_lock(); + if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) { + inet_forward_change(net); + } else if (*valp) { + struct ipv4_devconf *cnf = ctl->extra1; + struct in_device *idev = + container_of(cnf, struct in_device, cnf); + dev_disable_lro(idev->dev); + } + rtnl_unlock(); + rt_cache_flush(net, 0); + } } return ret; @@ -1351,9 +1362,10 @@ int ipv4_doint_and_flush(ctl_table *ctl, int write, int *valp = ctl->data; int val = *valp; int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos); + struct net *net = ctl->extra2; if (write && *valp != val) - rt_cache_flush(0); + rt_cache_flush(net, 0); return ret; } @@ -1364,9 +1376,10 @@ int ipv4_doint_and_flush_strategy(ctl_table *table, int __user *name, int nlen, { int ret = devinet_conf_sysctl(table, name, nlen, oldval, oldlenp, newval, newlen); + struct net *net = table->extra2; if (ret == 1) - rt_cache_flush(0); + rt_cache_flush(net, 0); return ret; } diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 0b2ac6a3d90..65c1503f8cc 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -5,8 +5,6 @@ * * IPv4 Forwarding Information Base: FIB frontend. * - * Version: $Id: fib_frontend.c,v 1.26 2001/10/31 21:55:54 davem Exp $ - * * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> * * This program is free software; you can redistribute it and/or @@ -146,7 +144,7 @@ static void fib_flush(struct net *net) } if (flushed) - rt_cache_flush(-1); + rt_cache_flush(net, -1); } /* @@ -899,21 +897,22 @@ static void fib_disable_ip(struct net_device *dev, int force) { if (fib_sync_down_dev(dev, force)) fib_flush(dev_net(dev)); - rt_cache_flush(0); + rt_cache_flush(dev_net(dev), 0); arp_ifdown(dev); } static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, void *ptr) { struct in_ifaddr *ifa = (struct in_ifaddr*)ptr; + struct net_device *dev = ifa->ifa_dev->dev; switch (event) { case NETDEV_UP: fib_add_ifaddr(ifa); #ifdef CONFIG_IP_ROUTE_MULTIPATH - fib_sync_up(ifa->ifa_dev->dev); + fib_sync_up(dev); #endif - rt_cache_flush(-1); + rt_cache_flush(dev_net(dev), -1); break; case NETDEV_DOWN: fib_del_ifaddr(ifa); @@ -921,9 +920,9 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event, /* Last address was deleted from this interface. Disable IP. */ - fib_disable_ip(ifa->ifa_dev->dev, 1); + fib_disable_ip(dev, 1); } else { - rt_cache_flush(-1); + rt_cache_flush(dev_net(dev), -1); } break; } @@ -951,14 +950,14 @@ static int fib_netdev_event(struct notifier_block *this, unsigned long event, vo #ifdef CONFIG_IP_ROUTE_MULTIPATH fib_sync_up(dev); #endif - rt_cache_flush(-1); + rt_cache_flush(dev_net(dev), -1); break; case NETDEV_DOWN: fib_disable_ip(dev, 0); break; case NETDEV_CHANGEMTU: case NETDEV_CHANGE: - rt_cache_flush(0); + rt_cache_flush(dev_net(dev), 0); break; } return NOTIFY_DONE; diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c index 2e2fc3376ac..c8cac6c7f88 100644 --- a/net/ipv4/fib_hash.c +++ b/net/ipv4/fib_hash.c @@ -5,8 +5,6 @@ * * IPv4 FIB: lookup engine and maintenance routines. * - * Version: $Id: fib_hash.c,v 1.13 2001/10/31 21:55:54 davem Exp $ - * * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> * * This program is free software; you can redistribute it and/or @@ -474,7 +472,7 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg) fib_release_info(fi_drop); if (state & FA_S_ACCESSED) - rt_cache_flush(-1); + rt_cache_flush(cfg->fc_nlinfo.nl_net, -1); rtmsg_fib(RTM_NEWROUTE, key, fa, cfg->fc_dst_len, tb->tb_id, &cfg->fc_nlinfo, NLM_F_REPLACE); return 0; @@ -534,7 +532,7 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg) if (new_f) fz->fz_nent++; - rt_cache_flush(-1); + rt_cache_flush(cfg->fc_nlinfo.nl_net, -1); rtmsg_fib(RTM_NEWROUTE, key, new_fa, cfg->fc_dst_len, tb->tb_id, &cfg->fc_nlinfo, 0); @@ -616,7 +614,7 @@ static int fn_hash_delete(struct fib_table *tb, struct fib_config *cfg) write_unlock_bh(&fib_hash_lock); if (fa->fa_state & FA_S_ACCESSED) - rt_cache_flush(-1); + rt_cache_flush(cfg->fc_nlinfo.nl_net, -1); fn_free_alias(fa, f); if (kill_fn) { fn_free_node(f); diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c index 1fb56876be5..6080d712082 100644 --- a/net/ipv4/fib_rules.c +++ b/net/ipv4/fib_rules.c @@ -258,9 +258,9 @@ static size_t fib4_rule_nlmsg_payload(struct fib_rule *rule) + nla_total_size(4); /* flow */ } -static void fib4_rule_flush_cache(void) +static void fib4_rule_flush_cache(struct fib_rules_ops *ops) { - rt_cache_flush(-1); + rt_cache_flush(ops->fro_net, -1); } static struct fib_rules_ops fib4_rules_ops_template = { diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 0d4d72827e4..ded2ae34eab 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -5,8 +5,6 @@ * * IPv4 Forwarding Information Base: semantics. * - * Version: $Id: fib_semantics.c,v 1.19 2002/01/12 07:54:56 davem Exp $ - * * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> * * This program is free software; you can redistribute it and/or diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index e1600ad8fb0..5cb72786a8a 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -22,8 +22,6 @@ * IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson * IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999 * - * Version: $Id: fib_trie.c,v 1.3 2005/06/08 14:20:01 robert Exp $ - * * * Code from fib_hash has been reused which includes the following header: * @@ -1273,7 +1271,7 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg) fib_release_info(fi_drop); if (state & FA_S_ACCESSED) - rt_cache_flush(-1); + rt_cache_flush(cfg->fc_nlinfo.nl_net, -1); rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id, &cfg->fc_nlinfo, NLM_F_REPLACE); @@ -1318,7 +1316,7 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg) list_add_tail_rcu(&new_fa->fa_list, (fa ? &fa->fa_list : fa_head)); - rt_cache_flush(-1); + rt_cache_flush(cfg->fc_nlinfo.nl_net, -1); rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id, &cfg->fc_nlinfo, 0); succeeded: @@ -1661,7 +1659,7 @@ static int fn_trie_delete(struct fib_table *tb, struct fib_config *cfg) trie_leaf_remove(t, l); if (fa->fa_state & FA_S_ACCESSED) - rt_cache_flush(-1); + rt_cache_flush(cfg->fc_nlinfo.nl_net, -1); fib_release_info(fa->fa_info); alias_free_mem_rcu(fa); @@ -2253,25 +2251,7 @@ static int fib_triestat_seq_show(struct seq_file *seq, void *v) static int fib_triestat_seq_open(struct inode *inode, struct file *file) { - int err; - struct net *net; - - net = get_proc_net(inode); - if (net == NULL) - return -ENXIO; - err = single_open(file, fib_triestat_seq_show, net); - if (err < 0) { - put_net(net); - return err; - } - return 0; -} - -static int fib_triestat_seq_release(struct inode *ino, struct file *f) -{ - struct seq_file *seq = f->private_data; - put_net(seq->private); - return single_release(ino, f); + return single_open_net(inode, file, fib_triestat_seq_show); } static const struct file_operations fib_triestat_fops = { @@ -2279,7 +2259,7 @@ static const struct file_operations fib_triestat_fops = { .open = fib_triestat_seq_open, .read = seq_read, .llseek = seq_lseek, - .release = fib_triestat_seq_release, + .release = single_release_net, }; static struct node *fib_trie_get_idx(struct seq_file *seq, loff_t pos) diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 87397351dda..860558633b2 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -3,8 +3,6 @@ * * Alan Cox, <alan@redhat.com> * - * Version: $Id: icmp.c,v 1.85 2002/02/01 22:01:03 davem Exp $ - * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version @@ -113,12 +111,6 @@ struct icmp_bxm { unsigned char o |