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Diffstat (limited to 'net/ipv6/af_inet6.c')
-rw-r--r--net/ipv6/af_inet6.c109
1 files changed, 52 insertions, 57 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index e84b3fd17fb..01edac88851 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -7,8 +7,6 @@
*
* Adapted from linux/net/ipv4/af_inet.c
*
- * $Id: af_inet6.c,v 1.66 2002/02/01 22:01:04 davem Exp $
- *
* Fixes:
* piggy, Karl Knutson : Socket protocol table
* Hideaki YOSHIFUJI : sin6_scope_id support
@@ -52,6 +50,7 @@
#include <net/ipip.h>
#include <net/protocol.h>
#include <net/inet_common.h>
+#include <net/route.h>
#include <net/transp_v6.h>
#include <net/ip6_route.h>
#include <net/addrconf.h>
@@ -61,9 +60,7 @@
#include <asm/uaccess.h>
#include <asm/system.h>
-#ifdef CONFIG_IPV6_MROUTE
#include <linux/mroute6.h>
-#endif
MODULE_AUTHOR("Cast of dozens");
MODULE_DESCRIPTION("IPv6 protocol stack for Linux");
@@ -87,7 +84,6 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol)
struct inet_sock *inet;
struct ipv6_pinfo *np;
struct sock *sk;
- struct list_head *p;
struct inet_protosw *answer;
struct proto *answer_prot;
unsigned char answer_flags;
@@ -101,13 +97,12 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol)
build_ehash_secret();
/* Look for the requested type/protocol pair. */
- answer = NULL;
lookup_protocol:
err = -ESOCKTNOSUPPORT;
rcu_read_lock();
- list_for_each_rcu(p, &inetsw6[sock->type]) {
- answer = list_entry(p, struct inet_protosw, list);
+ list_for_each_entry_rcu(answer, &inetsw6[sock->type], list) {
+ err = 0;
/* Check the non-wild match. */
if (protocol == answer->protocol) {
if (protocol != IPPROTO_IP)
@@ -122,10 +117,9 @@ lookup_protocol:
break;
}
err = -EPROTONOSUPPORT;
- answer = NULL;
}
- if (!answer) {
+ if (err) {
if (try_loading_module < 2) {
rcu_read_unlock();
/*
@@ -157,7 +151,7 @@ lookup_protocol:
answer_flags = answer->flags;
rcu_read_unlock();
- BUG_TRAP(answer_prot->slab != NULL);
+ WARN_ON(answer_prot->slab == NULL);
err = -ENOBUFS;
sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot);
@@ -373,7 +367,7 @@ int inet6_release(struct socket *sock)
EXPORT_SYMBOL(inet6_release);
-int inet6_destroy_sock(struct sock *sk)
+void inet6_destroy_sock(struct sock *sk)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct sk_buff *skb;
@@ -391,8 +385,6 @@ int inet6_destroy_sock(struct sock *sk)
if ((opt = xchg(&np->opt, NULL)) != NULL)
sock_kfree_s(sk, opt, opt->tot_len);
-
- return 0;
}
EXPORT_SYMBOL_GPL(inet6_destroy_sock);
@@ -803,61 +795,55 @@ static void ipv6_packet_cleanup(void)
dev_remove_pack(&ipv6_packet_type);
}
-static int __init init_ipv6_mibs(void)
+static int __net_init ipv6_init_mibs(struct net *net)
{
- if (snmp_mib_init((void **)ipv6_statistics,
+ if (snmp_mib_init((void **)net->mib.udp_stats_in6,
+ sizeof (struct udp_mib)) < 0)
+ return -ENOMEM;
+ if (snmp_mib_init((void **)net->mib.udplite_stats_in6,
+ sizeof (struct udp_mib)) < 0)
+ goto err_udplite_mib;
+ if (snmp_mib_init((void **)net->mib.ipv6_statistics,
sizeof(struct ipstats_mib)) < 0)
goto err_ip_mib;
- if (snmp_mib_init((void **)icmpv6_statistics,
+ if (snmp_mib_init((void **)net->mib.icmpv6_statistics,
sizeof(struct icmpv6_mib)) < 0)
goto err_icmp_mib;
- if (snmp_mib_init((void **)icmpv6msg_statistics,
+ if (snmp_mib_init((void **)net->mib.icmpv6msg_statistics,
sizeof(struct icmpv6msg_mib)) < 0)
goto err_icmpmsg_mib;
- if (snmp_mib_init((void **)udp_stats_in6, sizeof (struct udp_mib)) < 0)
- goto err_udp_mib;
- if (snmp_mib_init((void **)udplite_stats_in6,
- sizeof (struct udp_mib)) < 0)
- goto err_udplite_mib;
return 0;
-err_udplite_mib:
- snmp_mib_free((void **)udp_stats_in6);
-err_udp_mib:
- snmp_mib_free((void **)icmpv6msg_statistics);
err_icmpmsg_mib:
- snmp_mib_free((void **)icmpv6_statistics);
+ snmp_mib_free((void **)net->mib.icmpv6_statistics);
err_icmp_mib:
- snmp_mib_free((void **)ipv6_statistics);
+ snmp_mib_free((void **)net->mib.ipv6_statistics);
err_ip_mib:
+ snmp_mib_free((void **)net->mib.udplite_stats_in6);
+err_udplite_mib:
+ snmp_mib_free((void **)net->mib.udp_stats_in6);
return -ENOMEM;
-
}
-static void cleanup_ipv6_mibs(void)
+static void __net_exit ipv6_cleanup_mibs(struct net *net)
{
- snmp_mib_free((void **)ipv6_statistics);
- snmp_mib_free((void **)icmpv6_statistics);
- snmp_mib_free((void **)icmpv6msg_statistics);
- snmp_mib_free((void **)udp_stats_in6);
- snmp_mib_free((void **)udplite_stats_in6);
+ snmp_mib_free((void **)net->mib.udp_stats_in6);
+ snmp_mib_free((void **)net->mib.udplite_stats_in6);
+ snmp_mib_free((void **)net->mib.ipv6_statistics);
+ snmp_mib_free((void **)net->mib.icmpv6_statistics);
+ snmp_mib_free((void **)net->mib.icmpv6msg_statistics);
}
-static int inet6_net_init(struct net *net)
+static int __net_init inet6_net_init(struct net *net)
{
int err = 0;
net->ipv6.sysctl.bindv6only = 0;
- net->ipv6.sysctl.flush_delay = 0;
- net->ipv6.sysctl.ip6_rt_max_size = 4096;
- net->ipv6.sysctl.ip6_rt_gc_min_interval = HZ / 2;
- net->ipv6.sysctl.ip6_rt_gc_timeout = 60*HZ;
- net->ipv6.sysctl.ip6_rt_gc_interval = 30*HZ;
- net->ipv6.sysctl.ip6_rt_gc_elasticity = 9;
- net->ipv6.sysctl.ip6_rt_mtu_expires = 10*60*HZ;
- net->ipv6.sysctl.ip6_rt_min_advmss = IPV6_MIN_MTU - 20 - 40;
net->ipv6.sysctl.icmpv6_time = 1*HZ;
+ err = ipv6_init_mibs(net);
+ if (err)
+ return err;
#ifdef CONFIG_PROC_FS
err = udp6_proc_init(net);
if (err)
@@ -868,7 +854,6 @@ static int inet6_net_init(struct net *net)
err = ac6_proc_init(net);
if (err)
goto proc_ac6_fail;
-out:
#endif
return err;
@@ -877,7 +862,9 @@ proc_ac6_fail:
tcp6_proc_exit(net);
proc_tcp6_fail:
udp6_proc_exit(net);
- goto out;
+out:
+ ipv6_cleanup_mibs(net);
+ return err;
#endif
}
@@ -888,6 +875,7 @@ static void inet6_net_exit(struct net *net)
tcp6_proc_exit(net);
ac6_proc_exit(net);
#endif
+ ipv6_cleanup_mibs(net);
}
static struct pernet_operations inet6_net_ops = {
@@ -938,11 +926,11 @@ static int __init inet6_init(void)
if (err)
goto out_sock_register_fail;
- /* Initialise ipv6 mibs */
- err = init_ipv6_mibs();
+#ifdef CONFIG_SYSCTL
+ err = ipv6_static_sysctl_register();
if (err)
- goto out_unregister_sock;
-
+ goto static_sysctl_fail;
+#endif
/*
* ipngwg API draft makes clear that the correct semantics
* for TCP and UDP is to consider one TCP and UDP instance
@@ -956,9 +944,9 @@ static int __init inet6_init(void)
err = icmpv6_init();
if (err)
goto icmp_fail;
-#ifdef CONFIG_IPV6_MROUTE
- ip6_mr_init();
-#endif
+ err = ip6_mr_init();
+ if (err)
+ goto ipmr_fail;
err = ndisc_init();
if (err)
goto ndisc_fail;
@@ -1061,12 +1049,16 @@ netfilter_fail:
igmp_fail:
ndisc_cleanup();
ndisc_fail:
+ ip6_mr_cleanup();
+ipmr_fail:
icmpv6_cleanup();
icmp_fail:
unregister_pernet_subsys(&inet6_net_ops);
register_pernet_fail:
- cleanup_ipv6_mibs();
-out_unregister_sock:
+#ifdef CONFIG_SYSCTL
+ ipv6_static_sysctl_unregister();
+static_sysctl_fail:
+#endif
sock_unregister(PF_INET6);
rtnl_unregister_all(PF_INET6);
out_sock_register_fail:
@@ -1115,11 +1107,14 @@ static void __exit inet6_exit(void)
ipv6_netfilter_fini();
igmp6_cleanup();
ndisc_cleanup();
+ ip6_mr_cleanup();
icmpv6_cleanup();
rawv6_exit();
unregister_pernet_subsys(&inet6_net_ops);
- cleanup_ipv6_mibs();
+#ifdef CONFIG_SYSCTL
+ ipv6_static_sysctl_unregister();
+#endif
proto_unregister(&rawv6_prot);
proto_unregister(&udplitev6_prot);
proto_unregister(&udpv6_prot);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-02-05 22:12:58 +0000