Commit 4d405552 authored by David S. Miller's avatar David S. Miller
parents eff253c4 7fd10678
......@@ -242,4 +242,164 @@ struct ip_vs_daemon_user {
int syncid;
};
/*
*
* IPVS Generic Netlink interface definitions
*
*/
/* Generic Netlink family info */
#define IPVS_GENL_NAME "IPVS"
#define IPVS_GENL_VERSION 0x1
struct ip_vs_flags {
__be32 flags;
__be32 mask;
};
/* Generic Netlink command attributes */
enum {
IPVS_CMD_UNSPEC = 0,
IPVS_CMD_NEW_SERVICE, /* add service */
IPVS_CMD_SET_SERVICE, /* modify service */
IPVS_CMD_DEL_SERVICE, /* delete service */
IPVS_CMD_GET_SERVICE, /* get service info */
IPVS_CMD_NEW_DEST, /* add destination */
IPVS_CMD_SET_DEST, /* modify destination */
IPVS_CMD_DEL_DEST, /* delete destination */
IPVS_CMD_GET_DEST, /* get destination info */
IPVS_CMD_NEW_DAEMON, /* start sync daemon */
IPVS_CMD_DEL_DAEMON, /* stop sync daemon */
IPVS_CMD_GET_DAEMON, /* get sync daemon status */
IPVS_CMD_SET_CONFIG, /* set config settings */
IPVS_CMD_GET_CONFIG, /* get config settings */
IPVS_CMD_SET_INFO, /* only used in GET_INFO reply */
IPVS_CMD_GET_INFO, /* get general IPVS info */
IPVS_CMD_ZERO, /* zero all counters and stats */
IPVS_CMD_FLUSH, /* flush services and dests */
__IPVS_CMD_MAX,
};
#define IPVS_CMD_MAX (__IPVS_CMD_MAX - 1)
/* Attributes used in the first level of commands */
enum {
IPVS_CMD_ATTR_UNSPEC = 0,
IPVS_CMD_ATTR_SERVICE, /* nested service attribute */
IPVS_CMD_ATTR_DEST, /* nested destination attribute */
IPVS_CMD_ATTR_DAEMON, /* nested sync daemon attribute */
IPVS_CMD_ATTR_TIMEOUT_TCP, /* TCP connection timeout */
IPVS_CMD_ATTR_TIMEOUT_TCP_FIN, /* TCP FIN wait timeout */
IPVS_CMD_ATTR_TIMEOUT_UDP, /* UDP timeout */
__IPVS_CMD_ATTR_MAX,
};
#define IPVS_CMD_ATTR_MAX (__IPVS_SVC_ATTR_MAX - 1)
/*
* Attributes used to describe a service
*
* Used inside nested attribute IPVS_CMD_ATTR_SERVICE
*/
enum {
IPVS_SVC_ATTR_UNSPEC = 0,
IPVS_SVC_ATTR_AF, /* address family */
IPVS_SVC_ATTR_PROTOCOL, /* virtual service protocol */
IPVS_SVC_ATTR_ADDR, /* virtual service address */
IPVS_SVC_ATTR_PORT, /* virtual service port */
IPVS_SVC_ATTR_FWMARK, /* firewall mark of service */
IPVS_SVC_ATTR_SCHED_NAME, /* name of scheduler */
IPVS_SVC_ATTR_FLAGS, /* virtual service flags */
IPVS_SVC_ATTR_TIMEOUT, /* persistent timeout */
IPVS_SVC_ATTR_NETMASK, /* persistent netmask */
IPVS_SVC_ATTR_STATS, /* nested attribute for service stats */
__IPVS_SVC_ATTR_MAX,
};
#define IPVS_SVC_ATTR_MAX (__IPVS_SVC_ATTR_MAX - 1)
/*
* Attributes used to describe a destination (real server)
*
* Used inside nested attribute IPVS_CMD_ATTR_DEST
*/
enum {
IPVS_DEST_ATTR_UNSPEC = 0,
IPVS_DEST_ATTR_ADDR, /* real server address */
IPVS_DEST_ATTR_PORT, /* real server port */
IPVS_DEST_ATTR_FWD_METHOD, /* forwarding method */
IPVS_DEST_ATTR_WEIGHT, /* destination weight */
IPVS_DEST_ATTR_U_THRESH, /* upper threshold */
IPVS_DEST_ATTR_L_THRESH, /* lower threshold */
IPVS_DEST_ATTR_ACTIVE_CONNS, /* active connections */
IPVS_DEST_ATTR_INACT_CONNS, /* inactive connections */
IPVS_DEST_ATTR_PERSIST_CONNS, /* persistent connections */
IPVS_DEST_ATTR_STATS, /* nested attribute for dest stats */
__IPVS_DEST_ATTR_MAX,
};
#define IPVS_DEST_ATTR_MAX (__IPVS_DEST_ATTR_MAX - 1)
/*
* Attributes describing a sync daemon
*
* Used inside nested attribute IPVS_CMD_ATTR_DAEMON
*/
enum {
IPVS_DAEMON_ATTR_UNSPEC = 0,
IPVS_DAEMON_ATTR_STATE, /* sync daemon state (master/backup) */
IPVS_DAEMON_ATTR_MCAST_IFN, /* multicast interface name */
IPVS_DAEMON_ATTR_SYNC_ID, /* SyncID we belong to */
__IPVS_DAEMON_ATTR_MAX,
};
#define IPVS_DAEMON_ATTR_MAX (__IPVS_DAEMON_ATTR_MAX - 1)
/*
* Attributes used to describe service or destination entry statistics
*
* Used inside nested attributes IPVS_SVC_ATTR_STATS and IPVS_DEST_ATTR_STATS
*/
enum {
IPVS_STATS_ATTR_UNSPEC = 0,
IPVS_STATS_ATTR_CONNS, /* connections scheduled */
IPVS_STATS_ATTR_INPKTS, /* incoming packets */
IPVS_STATS_ATTR_OUTPKTS, /* outgoing packets */
IPVS_STATS_ATTR_INBYTES, /* incoming bytes */
IPVS_STATS_ATTR_OUTBYTES, /* outgoing bytes */
IPVS_STATS_ATTR_CPS, /* current connection rate */
IPVS_STATS_ATTR_INPPS, /* current in packet rate */
IPVS_STATS_ATTR_OUTPPS, /* current out packet rate */
IPVS_STATS_ATTR_INBPS, /* current in byte rate */
IPVS_STATS_ATTR_OUTBPS, /* current out byte rate */
__IPVS_STATS_ATTR_MAX,
};
#define IPVS_STATS_ATTR_MAX (__IPVS_STATS_ATTR_MAX - 1)
/* Attributes used in response to IPVS_CMD_GET_INFO command */
enum {
IPVS_INFO_ATTR_UNSPEC = 0,
IPVS_INFO_ATTR_VERSION, /* IPVS version number */
IPVS_INFO_ATTR_CONN_TAB_SIZE, /* size of connection hash table */
__IPVS_INFO_ATTR_MAX,
};
#define IPVS_INFO_ATTR_MAX (__IPVS_INFO_ATTR_MAX - 1)
#endif /* _IP_VS_H */
......@@ -683,6 +683,8 @@ extern void ip_vs_sync_conn(struct ip_vs_conn *cp);
/*
* IPVS rate estimator prototypes (from ip_vs_est.c)
*/
extern int ip_vs_estimator_init(void);
extern void ip_vs_estimator_cleanup(void);
extern void ip_vs_new_estimator(struct ip_vs_stats *stats);
extern void ip_vs_kill_estimator(struct ip_vs_stats *stats);
extern void ip_vs_zero_estimator(struct ip_vs_stats *stats);
......
......@@ -71,14 +71,20 @@ config IP_VS_PROTO_UDP
This option enables support for load balancing UDP transport
protocol. Say Y if unsure.
config IP_VS_PROTO_AH_ESP
bool
depends on UNDEFINED
config IP_VS_PROTO_ESP
bool "ESP load balancing support"
select IP_VS_PROTO_AH_ESP
---help---
This option enables support for load balancing ESP (Encapsulation
Security Payload) transport protocol. Say Y if unsure.
config IP_VS_PROTO_AH
bool "AH load balancing support"
select IP_VS_PROTO_AH_ESP
---help---
This option enables support for load balancing AH (Authentication
Header) transport protocol. Say Y if unsure.
......
......@@ -6,8 +6,7 @@
ip_vs_proto-objs-y :=
ip_vs_proto-objs-$(CONFIG_IP_VS_PROTO_TCP) += ip_vs_proto_tcp.o
ip_vs_proto-objs-$(CONFIG_IP_VS_PROTO_UDP) += ip_vs_proto_udp.o
ip_vs_proto-objs-$(CONFIG_IP_VS_PROTO_ESP) += ip_vs_proto_esp.o
ip_vs_proto-objs-$(CONFIG_IP_VS_PROTO_AH) += ip_vs_proto_ah.o
ip_vs_proto-objs-$(CONFIG_IP_VS_PROTO_AH_ESP) += ip_vs_proto_ah_esp.o
ip_vs-objs := ip_vs_conn.o ip_vs_core.o ip_vs_ctl.o ip_vs_sched.o \
ip_vs_xmit.o ip_vs_app.o ip_vs_sync.o \
......
......@@ -1070,10 +1070,12 @@ static int __init ip_vs_init(void)
{
int ret;
ip_vs_estimator_init();
ret = ip_vs_control_init();
if (ret < 0) {
IP_VS_ERR("can't setup control.\n");
goto cleanup_nothing;
goto cleanup_estimator;
}
ip_vs_protocol_init();
......@@ -1106,7 +1108,8 @@ static int __init ip_vs_init(void)
cleanup_protocol:
ip_vs_protocol_cleanup();
ip_vs_control_cleanup();
cleanup_nothing:
cleanup_estimator:
ip_vs_estimator_cleanup();
return ret;
}
......@@ -1117,6 +1120,7 @@ static void __exit ip_vs_cleanup(void)
ip_vs_app_cleanup();
ip_vs_protocol_cleanup();
ip_vs_control_cleanup();
ip_vs_estimator_cleanup();
IP_VS_INFO("ipvs unloaded.\n");
}
......
This diff is collapsed.
......@@ -124,8 +124,6 @@ void ip_vs_new_estimator(struct ip_vs_stats *stats)
est->outbps = stats->outbps<<5;
spin_lock_bh(&est_lock);
if (list_empty(&est_list))
mod_timer(&est_timer, jiffies + 2 * HZ);
list_add(&est->list, &est_list);
spin_unlock_bh(&est_lock);
}
......@@ -136,11 +134,6 @@ void ip_vs_kill_estimator(struct ip_vs_stats *stats)
spin_lock_bh(&est_lock);
list_del(&est->list);
while (list_empty(&est_list) && try_to_del_timer_sync(&est_timer) < 0) {
spin_unlock_bh(&est_lock);
cpu_relax();
spin_lock_bh(&est_lock);
}
spin_unlock_bh(&est_lock);
}
......@@ -160,3 +153,14 @@ void ip_vs_zero_estimator(struct ip_vs_stats *stats)
est->inbps = 0;
est->outbps = 0;
}
int __init ip_vs_estimator_init(void)
{
mod_timer(&est_timer, jiffies + 2 * HZ);
return 0;
}
void ip_vs_estimator_cleanup(void)
{
del_timer_sync(&est_timer);
}
This diff is collapsed.
This diff is collapsed.
......@@ -20,24 +20,6 @@
#include <net/ip_vs.h>
static int ip_vs_lc_init_svc(struct ip_vs_service *svc)
{
return 0;
}
static int ip_vs_lc_done_svc(struct ip_vs_service *svc)
{
return 0;
}
static int ip_vs_lc_update_svc(struct ip_vs_service *svc)
{
return 0;
}
static inline unsigned int
ip_vs_lc_dest_overhead(struct ip_vs_dest *dest)
{
......@@ -99,9 +81,6 @@ static struct ip_vs_scheduler ip_vs_lc_scheduler = {
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_lc_scheduler.n_list),
.init_service = ip_vs_lc_init_svc,
.done_service = ip_vs_lc_done_svc,
.update_service = ip_vs_lc_update_svc,
.schedule = ip_vs_lc_schedule,
};
......
......@@ -37,27 +37,6 @@
#include <net/ip_vs.h>
static int
ip_vs_nq_init_svc(struct ip_vs_service *svc)
{
return 0;
}
static int
ip_vs_nq_done_svc(struct ip_vs_service *svc)
{
return 0;
}
static int
ip_vs_nq_update_svc(struct ip_vs_service *svc)
{
return 0;
}
static inline unsigned int
ip_vs_nq_dest_overhead(struct ip_vs_dest *dest)
{
......@@ -137,9 +116,6 @@ static struct ip_vs_scheduler ip_vs_nq_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_nq_scheduler.n_list),
.init_service = ip_vs_nq_init_svc,
.done_service = ip_vs_nq_done_svc,
.update_service = ip_vs_nq_update_svc,
.schedule = ip_vs_nq_schedule,
};
......
/*
* ip_vs_proto_ah.c: AH IPSec load balancing support for IPVS
* ip_vs_proto_ah_esp.c: AH/ESP IPSec load balancing support for IPVS
*
* Authors: Julian Anastasov <ja@ssi.bg>, February 2002
* Wensong Zhang <wensong@linuxvirtualserver.org>
......@@ -39,7 +39,7 @@ struct isakmp_hdr {
static struct ip_vs_conn *
ah_conn_in_get(const struct sk_buff *skb,
ah_esp_conn_in_get(const struct sk_buff *skb,
struct ip_vs_protocol *pp,
const struct iphdr *iph,
unsigned int proto_off,
......@@ -79,7 +79,7 @@ ah_conn_in_get(const struct sk_buff *skb,
static struct ip_vs_conn *
ah_conn_out_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
ah_esp_conn_out_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
const struct iphdr *iph, unsigned int proto_off, int inverse)
{
struct ip_vs_conn *cp;
......@@ -112,12 +112,12 @@ ah_conn_out_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
static int
ah_conn_schedule(struct sk_buff *skb,
ah_esp_conn_schedule(struct sk_buff *skb,
struct ip_vs_protocol *pp,
int *verdict, struct ip_vs_conn **cpp)
{
/*
* AH is only related traffic. Pass the packet to IP stack.
* AH/ESP is only related traffic. Pass the packet to IP stack.
*/
*verdict = NF_ACCEPT;
return 0;
......@@ -125,7 +125,7 @@ ah_conn_schedule(struct sk_buff *skb,
static void
ah_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
ah_esp_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
int offset, const char *msg)
{
char buf[256];
......@@ -143,28 +143,29 @@ ah_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
}
static void ah_init(struct ip_vs_protocol *pp)
static void ah_esp_init(struct ip_vs_protocol *pp)
{
/* nothing to do now */
}
static void ah_exit(struct ip_vs_protocol *pp)
static void ah_esp_exit(struct ip_vs_protocol *pp)
{
/* nothing to do now */
}
#ifdef CONFIG_IP_VS_PROTO_AH
struct ip_vs_protocol ip_vs_protocol_ah = {
.name = "AH",
.protocol = IPPROTO_AH,
.num_states = 1,
.dont_defrag = 1,
.init = ah_init,
.exit = ah_exit,
.conn_schedule = ah_conn_schedule,
.conn_in_get = ah_conn_in_get,
.conn_out_get = ah_conn_out_get,
.init = ah_esp_init,
.exit = ah_esp_exit,
.conn_schedule = ah_esp_conn_schedule,
.conn_in_get = ah_esp_conn_in_get,
.conn_out_get = ah_esp_conn_out_get,
.snat_handler = NULL,
.dnat_handler = NULL,
.csum_check = NULL,
......@@ -172,7 +173,31 @@ struct ip_vs_protocol ip_vs_protocol_ah = {
.register_app = NULL,
.unregister_app = NULL,
.app_conn_bind = NULL,
.debug_packet = ah_debug_packet,
.debug_packet = ah_esp_debug_packet,
.timeout_change = NULL, /* ISAKMP */
.set_state_timeout = NULL,
};
#endif
#ifdef CONFIG_IP_VS_PROTO_ESP
struct ip_vs_protocol ip_vs_protocol_esp = {
.name = "ESP",
.protocol = IPPROTO_ESP,
.num_states = 1,
.dont_defrag = 1,
.init = ah_esp_init,
.exit = ah_esp_exit,
.conn_schedule = ah_esp_conn_schedule,
.conn_in_get = ah_esp_conn_in_get,
.conn_out_get = ah_esp_conn_out_get,
.snat_handler = NULL,
.dnat_handler = NULL,
.csum_check = NULL,
.state_transition = NULL,
.register_app = NULL,
.unregister_app = NULL,
.app_conn_bind = NULL,
.debug_packet = ah_esp_debug_packet,
.timeout_change = NULL, /* ISAKMP */
};
#endif
/*
* ip_vs_proto_esp.c: ESP IPSec load balancing support for IPVS
*
* Authors: Julian Anastasov <ja@ssi.bg>, February 2002
* Wensong Zhang <wensong@linuxvirtualserver.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation;
*
*/
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
#include <net/ip_vs.h>
/* TODO:
struct isakmp_hdr {
__u8 icookie[8];
__u8 rcookie[8];
__u8 np;
__u8 version;
__u8 xchgtype;
__u8 flags;
__u32 msgid;
__u32 length;
};
*/
#define PORT_ISAKMP 500
static struct ip_vs_conn *
esp_conn_in_get(const struct sk_buff *skb,
struct ip_vs_protocol *pp,
const struct iphdr *iph,
unsigned int proto_off,
int inverse)
{
struct ip_vs_conn *cp;
if (likely(!inverse)) {
cp = ip_vs_conn_in_get(IPPROTO_UDP,
iph->saddr,
htons(PORT_ISAKMP),
iph->daddr,
htons(PORT_ISAKMP));
} else {
cp = ip_vs_conn_in_get(IPPROTO_UDP,
iph->daddr,
htons(PORT_ISAKMP),
iph->saddr,
htons(PORT_ISAKMP));
}
if (!cp) {
/*
* We are not sure if the packet is from our
* service, so our conn_schedule hook should return NF_ACCEPT
*/
IP_VS_DBG(12, "Unknown ISAKMP entry for outin packet "
"%s%s %u.%u.%u.%u->%u.%u.%u.%u\n",
inverse ? "ICMP+" : "",
pp->name,
NIPQUAD(iph->saddr),
NIPQUAD(iph->daddr));
}
return cp;
}
static struct ip_vs_conn *
esp_conn_out_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
const struct iphdr *iph, unsigned int proto_off, int inverse)
{
struct ip_vs_conn *cp;
if (likely(!inverse)) {
cp = ip_vs_conn_out_get(IPPROTO_UDP,
iph->saddr,
htons(PORT_ISAKMP),
iph->daddr,
htons(PORT_ISAKMP));
} else {
cp = ip_vs_conn_out_get(IPPROTO_UDP,
iph->daddr,
htons(PORT_ISAKMP),
iph->saddr,
htons(PORT_ISAKMP));
}
if (!cp) {
IP_VS_DBG(12, "Unknown ISAKMP entry for inout packet "
"%s%s %u.%u.%u.%u->%u.%u.%u.%u\n",
inverse ? "ICMP+" : "",
pp->name,
NIPQUAD(iph->saddr),
NIPQUAD(iph->daddr));
}
return cp;
}
static int
esp_conn_schedule(struct sk_buff *skb, struct ip_vs_protocol *pp,
int *verdict, struct ip_vs_conn **cpp)
{
/*
* ESP is only related traffic. Pass the packet to IP stack.
*/
*verdict = NF_ACCEPT;
return 0;
}
static void
esp_debug_packet(struct ip_vs_protocol *pp, const struct sk_buff *skb,
int offset, const char *msg)
{
char buf[256];
struct iphdr _iph, *ih;
ih = skb_header_pointer(skb, offset, sizeof(_iph), &_iph);
if (ih == NULL)
sprintf(buf, "%s TRUNCATED", pp->name);
else
sprintf(buf, "%s %u.%u.%u.%u->%u.%u.%u.%u",
pp->name, NIPQUAD(ih->saddr),
NIPQUAD(ih->daddr));
printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
}
static void esp_init(struct ip_vs_protocol *pp)
{
/* nothing to do now */
}
static void esp_exit(struct ip_vs_protocol *pp)
{
/* nothing to do now */
}
struct ip_vs_protocol ip_vs_protocol_esp = {
.name = "ESP",
.protocol = IPPROTO_ESP,
.num_states = 1,
.dont_defrag = 1,
.init = esp_init,
.exit = esp_exit,
.conn_schedule = esp_conn_schedule,
.conn_in_get = esp_conn_in_get,
.conn_out_get = esp_conn_out_get,
.snat_handler = NULL,
.dnat_handler = NULL,
.csum_check = NULL,
.state_transition = NULL,
.register_app = NULL,
.unregister_app = NULL,
.app_conn_bind = NULL,
.debug_packet = esp_debug_packet,
.timeout_change = NULL, /* ISAKMP */
};
......@@ -32,12 +32,6 @@ static int ip_vs_rr_init_svc(struct ip_vs_service *svc)
}
static int ip_vs_rr_done_svc(struct ip_vs_service *svc)
{
return 0;
}
static int ip_vs_rr_update_svc(struct ip_vs_service *svc)
{
svc->sched_data = &svc->destinations;
......@@ -96,7 +90,6 @@ static struct ip_vs_scheduler ip_vs_rr_scheduler = {
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_rr_scheduler.n_list),
.init_service = ip_vs_rr_init_svc,
.done_service = ip_vs_rr_done_svc,
.update_service = ip_vs_rr_update_svc,
.schedule = ip_vs_rr_schedule,
};
......
......@@ -41,27 +41,6 @@
#include <net/ip_vs.h>
static int
ip_vs_sed_init_svc(struct ip_vs_service *svc)
{
return 0;
}
static int
ip_vs_sed_done_svc(struct ip_vs_service *svc)
{
return 0;
}
static int
ip_vs_sed_update_svc(struct ip_vs_service *svc)
{
return 0;
}
static inline unsigned int
ip_vs_sed_dest_overhead(struct ip_vs_dest *dest)
{
......@@ -139,9 +118,6 @@ static struct ip_vs_scheduler ip_vs_sed_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_sed_scheduler.n_list),
.init_service = ip_vs_sed_init_svc,
.done_service = ip_vs_sed_done_svc,
.update_service = ip_vs_sed_update_svc,
.schedule = ip_vs_sed_schedule,
};
......
......@@ -25,27 +25,6 @@
#include <net/ip_vs.h>
static int
ip_vs_wlc_init_svc(struct ip_vs_service *svc)
{
return 0;
}
static int
ip_vs_wlc_done_svc(struct ip_vs_service *svc)
{
return 0;
}
static int
ip_vs_wlc_update_svc(struct ip_vs_service *svc)
{
return 0;
}
static inline unsigned int
ip_vs_wlc_dest_overhead(struct ip_vs_dest *dest)
{
......@@ -127,9 +106,6 @@ static struct ip_vs_scheduler ip_vs_wlc_scheduler =
.refcnt = ATOMIC_INIT(0),
.module = THIS_MODULE,
.n_list = LIST_HEAD_INIT(ip_vs_wlc_scheduler.n_list),
.init_service = ip_vs_wlc_init_svc,
.done_service = ip_vs_wlc_done_svc,
.update_service = ip_vs_wlc_update_svc,
.schedule = ip_vs_wlc_schedule,
};
......
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