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path: root/net/ipv4/ipvs/ip_vs_ctl.c
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Diffstat (limited to 'net/ipv4/ipvs/ip_vs_ctl.c')
-rw-r--r--net/ipv4/ipvs/ip_vs_ctl.c88
1 files changed, 34 insertions, 54 deletions
diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index 7345fc252a23..94c5767c8e01 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -579,6 +579,31 @@ ip_vs_lookup_dest(struct ip_vs_service *svc, __be32 daddr, __be16 dport)
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.
@@ -679,7 +704,7 @@ __ip_vs_update_dest(struct ip_vs_service *svc,
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;
}
@@ -731,7 +756,7 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user *udest,
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;
@@ -1399,7 +1424,6 @@ proc_do_sync_threshold(ctl_table *table, int write, struct file *filp,
static struct ctl_table vs_vars[] = {
{
- .ctl_name = NET_IPV4_VS_AMEMTHRESH,
.procname = "amemthresh",
.data = &sysctl_ip_vs_amemthresh,
.maxlen = sizeof(int),
@@ -1408,7 +1432,6 @@ static struct ctl_table vs_vars[] = {
},
#ifdef CONFIG_IP_VS_DEBUG
{
- .ctl_name = NET_IPV4_VS_DEBUG_LEVEL,
.procname = "debug_level",
.data = &sysctl_ip_vs_debug_level,
.maxlen = sizeof(int),
@@ -1417,7 +1440,6 @@ static struct ctl_table vs_vars[] = {
},
#endif
{
- .ctl_name = NET_IPV4_VS_AMDROPRATE,
.procname = "am_droprate",
.data = &sysctl_ip_vs_am_droprate,
.maxlen = sizeof(int),
@@ -1425,7 +1447,6 @@ static struct ctl_table vs_vars[] = {
.proc_handler = &proc_dointvec,
},
{
- .ctl_name = NET_IPV4_VS_DROP_ENTRY,
.procname = "drop_entry",
.data = &sysctl_ip_vs_drop_entry,
.maxlen = sizeof(int),
@@ -1433,7 +1454,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1441,7 +1461,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1450,7 +1469,6 @@ static struct ctl_table vs_vars[] = {
},
#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),
@@ -1458,7 +1476,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1466,7 +1483,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1474,7 +1490,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1482,7 +1497,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1490,7 +1504,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1498,7 +1511,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1506,7 +1518,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1514,7 +1525,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1522,7 +1532,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1530,7 +1539,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1538,7 +1546,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1547,7 +1554,6 @@ static struct ctl_table vs_vars[] = {
},
#endif
{
- .ctl_name = NET_IPV4_VS_CACHE_BYPASS,
.procname = "cache_bypass",
.data = &sysctl_ip_vs_cache_bypass,
.maxlen = sizeof(int),
@@ -1555,7 +1561,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1563,7 +1568,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1571,7 +1575,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1579,7 +1582,6 @@ static struct ctl_table vs_vars[] = {
.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),
@@ -1589,35 +1591,13 @@ static struct ctl_table vs_vars[] = {
{ .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;
@@ -2344,7 +2324,7 @@ int ip_vs_control_init(void)
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);
+ 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++) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.