* high-performance and highly available server based on a
* cluster of servers.
*
- * Version: $Id: ip_vs_ctl.c,v 1.36 2003/06/08 09:31:19 wensong Exp $
- *
* Authors: Wensong Zhang <wensong@linuxvirtualserver.org>
* Peter Kese <peter.kese@ijs.si>
* Julian Anastasov <ja@ssi.bg>
#include <linux/proc_fs.h>
#include <linux/workqueue.h>
#include <linux/swap.h>
-#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
#include <linux/mutex.h>
+#include <net/net_namespace.h>
#include <net/ip.h>
#include <net/route.h>
#include <net/sock.h>
return NULL;
}
+/*
+ * Find destination by {daddr,dport,vaddr,protocol}
+ * Cretaed to be used in ip_vs_process_message() in
+ * the backup synchronization daemon. It finds the
+ * destination to be bound to the received connection
+ * on the backup.
+ *
+ * ip_vs_lookup_real_service() looked promissing, but
+ * seems not working as expected.
+ */
+struct ip_vs_dest *ip_vs_find_dest(__be32 daddr, __be16 dport,
+ __be32 vaddr, __be16 vport, __u16 protocol)
+{
+ struct ip_vs_dest *dest;
+ struct ip_vs_service *svc;
+
+ svc = ip_vs_service_get(0, protocol, vaddr, vport);
+ if (!svc)
+ return NULL;
+ dest = ip_vs_lookup_dest(svc, daddr, dport);
+ if (dest)
+ atomic_inc(&dest->refcnt);
+ ip_vs_service_put(svc);
+ return dest;
+}
/*
* Lookup dest by {svc,addr,port} in the destination trash.
conn_flags = udest->conn_flags | IP_VS_CONN_F_INACTIVE;
/* check if local node and update the flags */
- if (inet_addr_type(udest->addr) == RTN_LOCAL) {
+ if (inet_addr_type(&init_net, udest->addr) == RTN_LOCAL) {
conn_flags = (conn_flags & ~IP_VS_CONN_F_FWD_MASK)
| IP_VS_CONN_F_LOCALNODE;
}
EnterFunction(2);
- atype = inet_addr_type(udest->addr);
+ atype = inet_addr_type(&init_net, udest->addr);
if (atype != RTN_LOCAL && atype != RTN_UNICAST)
return -EINVAL;
write_lock_bh(&__ip_vs_svc_lock);
/* Wait until all other svc users go away */
- while (atomic_read(&svc->usecnt) > 1) {};
+ IP_VS_WAIT_WHILE(atomic_read(&svc->usecnt) > 1);
/* call the update_service, because server weight may be changed */
svc->scheduler->update_service(svc);
static struct ctl_table vs_vars[] = {
{
- .ctl_name = NET_IPV4_VS_AMEMTHRESH,
.procname = "amemthresh",
.data = &sysctl_ip_vs_amemthresh,
.maxlen = sizeof(int),
},
#ifdef CONFIG_IP_VS_DEBUG
{
- .ctl_name = NET_IPV4_VS_DEBUG_LEVEL,
.procname = "debug_level",
.data = &sysctl_ip_vs_debug_level,
.maxlen = sizeof(int),
},
#endif
{
- .ctl_name = NET_IPV4_VS_AMDROPRATE,
.procname = "am_droprate",
.data = &sysctl_ip_vs_am_droprate,
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec,
},
{
- .ctl_name = NET_IPV4_VS_DROP_ENTRY,
.procname = "drop_entry",
.data = &sysctl_ip_vs_drop_entry,
.maxlen = sizeof(int),
.proc_handler = &proc_do_defense_mode,
},
{
- .ctl_name = NET_IPV4_VS_DROP_PACKET,
.procname = "drop_packet",
.data = &sysctl_ip_vs_drop_packet,
.maxlen = sizeof(int),
.proc_handler = &proc_do_defense_mode,
},
{
- .ctl_name = NET_IPV4_VS_SECURE_TCP,
.procname = "secure_tcp",
.data = &sysctl_ip_vs_secure_tcp,
.maxlen = sizeof(int),
},
#if 0
{
- .ctl_name = NET_IPV4_VS_TO_ES,
.procname = "timeout_established",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_ESTABLISHED],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_SS,
.procname = "timeout_synsent",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_SYN_SENT],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_SR,
.procname = "timeout_synrecv",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_SYN_RECV],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_FW,
.procname = "timeout_finwait",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_FIN_WAIT],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_TW,
.procname = "timeout_timewait",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_TIME_WAIT],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_CL,
.procname = "timeout_close",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_CLOSE],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_CW,
.procname = "timeout_closewait",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_CLOSE_WAIT],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_LA,
.procname = "timeout_lastack",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_LAST_ACK],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_LI,
.procname = "timeout_listen",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_LISTEN],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_SA,
.procname = "timeout_synack",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_SYNACK],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_UDP,
.procname = "timeout_udp",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_UDP],
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec_jiffies,
},
{
- .ctl_name = NET_IPV4_VS_TO_ICMP,
.procname = "timeout_icmp",
.data = &vs_timeout_table_dos.timeout[IP_VS_S_ICMP],
.maxlen = sizeof(int),
},
#endif
{
- .ctl_name = NET_IPV4_VS_CACHE_BYPASS,
.procname = "cache_bypass",
.data = &sysctl_ip_vs_cache_bypass,
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec,
},
{
- .ctl_name = NET_IPV4_VS_EXPIRE_NODEST_CONN,
.procname = "expire_nodest_conn",
.data = &sysctl_ip_vs_expire_nodest_conn,
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec,
},
{
- .ctl_name = NET_IPV4_VS_EXPIRE_QUIESCENT_TEMPLATE,
.procname = "expire_quiescent_template",
.data = &sysctl_ip_vs_expire_quiescent_template,
.maxlen = sizeof(int),
.proc_handler = &proc_dointvec,
},
{
- .ctl_name = NET_IPV4_VS_SYNC_THRESHOLD,
.procname = "sync_threshold",
.data = &sysctl_ip_vs_sync_threshold,
.maxlen = sizeof(sysctl_ip_vs_sync_threshold),
.proc_handler = &proc_do_sync_threshold,
},
{
- .ctl_name = NET_IPV4_VS_NAT_ICMP_SEND,
.procname = "nat_icmp_send",
.data = &sysctl_ip_vs_nat_icmp_send,
.maxlen = sizeof(int),
{ .ctl_name = 0 }
};
-static ctl_table vs_table[] = {
- {
- .ctl_name = NET_IPV4_VS,
- .procname = "vs",
- .mode = 0555,
- .child = vs_vars
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table ipvs_ipv4_table[] = {
- {
- .ctl_name = NET_IPV4,
- .procname = "ipv4",
- .mode = 0555,
- .child = vs_table,
- },
- { .ctl_name = 0 }
-};
-
-static ctl_table vs_root_table[] = {
- {
- .ctl_name = CTL_NET,
- .procname = "net",
- .mode = 0555,
- .child = ipvs_ipv4_table,
- },
- { .ctl_name = 0 }
+struct ctl_path net_vs_ctl_path[] = {
+ { .procname = "net", .ctl_name = CTL_NET, },
+ { .procname = "ipv4", .ctl_name = NET_IPV4, },
+ { .procname = "vs", },
+ { }
};
+EXPORT_SYMBOL_GPL(net_vs_ctl_path);
static struct ctl_table_header * sysctl_header;
return 0;
}
-static struct seq_operations ip_vs_info_seq_ops = {
+static const struct seq_operations ip_vs_info_seq_ops = {
.start = ip_vs_info_seq_start,
.next = ip_vs_info_seq_next,
.stop = ip_vs_info_seq_stop,
static int ip_vs_info_open(struct inode *inode, struct file *file)
{
- struct seq_file *seq;
- int rc = -ENOMEM;
- struct ip_vs_iter *s = kzalloc(sizeof(*s), GFP_KERNEL);
-
- if (!s)
- goto out;
-
- rc = seq_open(file, &ip_vs_info_seq_ops);
- if (rc)
- goto out_kfree;
-
- seq = file->private_data;
- seq->private = s;
-out:
- return rc;
-out_kfree:
- kfree(s);
- goto out;
+ return seq_open_private(file, &ip_vs_info_seq_ops,
+ sizeof(struct ip_vs_iter));
}
static const struct file_operations ip_vs_info_fops = {
.get_optmin = IP_VS_BASE_CTL,
.get_optmax = IP_VS_SO_GET_MAX+1,
.get = do_ip_vs_get_ctl,
+ .owner = THIS_MODULE,
};
return ret;
}
- proc_net_fops_create("ip_vs", 0, &ip_vs_info_fops);
- proc_net_fops_create("ip_vs_stats",0, &ip_vs_stats_fops);
+ proc_net_fops_create(&init_net, "ip_vs", 0, &ip_vs_info_fops);
+ proc_net_fops_create(&init_net, "ip_vs_stats",0, &ip_vs_stats_fops);
- sysctl_header = register_sysctl_table(vs_root_table, 0);
+ sysctl_header = register_sysctl_paths(net_vs_ctl_path, vs_vars);
/* Initialize ip_vs_svc_table, ip_vs_svc_fwm_table, ip_vs_rtable */
for(idx = 0; idx < IP_VS_SVC_TAB_SIZE; idx++) {
EnterFunction(2);
ip_vs_trash_cleanup();
cancel_rearming_delayed_work(&defense_work);
+ cancel_work_sync(&defense_work.work);
ip_vs_kill_estimator(&ip_vs_stats);
unregister_sysctl_table(sysctl_header);
- proc_net_remove("ip_vs_stats");
- proc_net_remove("ip_vs");
+ proc_net_remove(&init_net, "ip_vs_stats");
+ proc_net_remove(&init_net, "ip_vs");
nf_unregister_sockopt(&ip_vs_sockopts);
LeaveFunction(2);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff