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-rw-r--r--include/linux/ipv6.h2
-rw-r--r--include/net/addrconf.h2
-rw-r--r--include/net/mip6.h4
-rw-r--r--include/net/rawv6.h9
-rw-r--r--net/ipv6/Kconfig2
-rw-r--r--net/ipv6/Makefile2
-rw-r--r--net/ipv6/addrconf.c4
-rw-r--r--net/ipv6/af_inet6.c10
-rw-r--r--net/ipv6/ah6.c8
-rw-r--r--net/ipv6/datagram.c2
-rw-r--r--net/ipv6/exthdrs.c19
-rw-r--r--net/ipv6/icmp.c2
-rw-r--r--net/ipv6/ip6_output.c2
-rw-r--r--net/ipv6/ipv6_sockglue.c2
-rw-r--r--net/ipv6/mip6.c22
-rw-r--r--net/ipv6/raw.c34
-rw-r--r--net/ipv6/xfrm6_policy.c4
-rw-r--r--net/ipv6/xfrm6_state.c4
18 files changed, 88 insertions, 46 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 648bd1f0912..213b63be3c8 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -247,7 +247,7 @@ struct inet6_skb_parm {
__u16 lastopt;
__u32 nhoff;
__u16 flags;
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
__u16 dsthao;
#endif
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index f3531d0bcd0..33b593e1744 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -61,7 +61,7 @@ extern int addrconf_set_dstaddr(void __user *arg);
extern int ipv6_chk_addr(struct in6_addr *addr,
struct net_device *dev,
int strict);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
extern int ipv6_chk_home_addr(struct in6_addr *addr);
#endif
extern struct inet6_ifaddr * ipv6_get_ifaddr(struct in6_addr *addr,
diff --git a/include/net/mip6.h b/include/net/mip6.h
index 68263c6d999..63272610a24 100644
--- a/include/net/mip6.h
+++ b/include/net/mip6.h
@@ -54,8 +54,4 @@ struct ip6_mh {
#define IP6_MH_TYPE_BERROR 7 /* Binding Error */
#define IP6_MH_TYPE_MAX IP6_MH_TYPE_BERROR
-extern int mip6_init(void);
-extern void mip6_fini(void);
-extern int mip6_mh_filter(struct sock *sk, struct sk_buff *skb);
-
#endif
diff --git a/include/net/rawv6.h b/include/net/rawv6.h
index af8960878ef..a5819891d52 100644
--- a/include/net/rawv6.h
+++ b/include/net/rawv6.h
@@ -3,6 +3,8 @@
#ifdef __KERNEL__
+#include <net/protocol.h>
+
#define RAWV6_HTABLE_SIZE MAX_INET_PROTOS
extern struct hlist_head raw_v6_htable[RAWV6_HTABLE_SIZE];
extern rwlock_t raw_v6_lock;
@@ -23,6 +25,13 @@ extern void rawv6_err(struct sock *sk,
int type, int code,
int offset, __be32 info);
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
+ struct sk_buff *skb));
+int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock,
+ struct sk_buff *skb));
+#endif
+
#endif
#endif
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 8e5d54f23b4..eb0b8085949 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -109,7 +109,7 @@ config INET6_IPCOMP
If unsure, say Y.
config IPV6_MIP6
- bool "IPv6: Mobility (EXPERIMENTAL)"
+ tristate "IPv6: Mobility (EXPERIMENTAL)"
depends on IPV6 && EXPERIMENTAL
select XFRM
---help---
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index bb33309044c..87c23a73d28 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -14,7 +14,6 @@ ipv6-$(CONFIG_XFRM) += xfrm6_policy.o xfrm6_state.o xfrm6_input.o \
xfrm6_output.o
ipv6-$(CONFIG_NETFILTER) += netfilter.o
ipv6-$(CONFIG_IPV6_MULTIPLE_TABLES) += fib6_rules.o
-ipv6-$(CONFIG_IPV6_MIP6) += mip6.o
ipv6-$(CONFIG_PROC_FS) += proc.o
ipv6-objs += $(ipv6-y)
@@ -28,6 +27,7 @@ obj-$(CONFIG_INET6_XFRM_MODE_TRANSPORT) += xfrm6_mode_transport.o
obj-$(CONFIG_INET6_XFRM_MODE_TUNNEL) += xfrm6_mode_tunnel.o
obj-$(CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION) += xfrm6_mode_ro.o
obj-$(CONFIG_INET6_XFRM_MODE_BEET) += xfrm6_mode_beet.o
+obj-$(CONFIG_IPV6_MIP6) += mip6.o
obj-$(CONFIG_NETFILTER) += netfilter/
obj-$(CONFIG_IPV6_SIT) += sit.o
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 79b79f3de24..11c0028863b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1034,7 +1034,7 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
}
/* Rule 4: Prefer home address */
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
if (hiscore.rule < 4) {
if (ifa_result->flags & IFA_F_HOMEADDRESS)
hiscore.attrs |= IPV6_SADDR_SCORE_HOA;
@@ -2835,7 +2835,7 @@ void if6_proc_exit(void)
}
#endif /* CONFIG_PROC_FS */
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
/* Check if address is a home address configured on any interface. */
int ipv6_chk_home_addr(struct in6_addr *addr)
{
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 6dd377253cf..eed09373a45 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -58,9 +58,6 @@
#ifdef CONFIG_IPV6_TUNNEL
#include <net/ip6_tunnel.h>
#endif
-#ifdef CONFIG_IPV6_MIP6
-#include <net/mip6.h>
-#endif
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -853,9 +850,6 @@ static int __init inet6_init(void)
ipv6_frag_init();
ipv6_nodata_init();
ipv6_destopt_init();
-#ifdef CONFIG_IPV6_MIP6
- mip6_init();
-#endif
/* Init v6 transport protocols. */
udpv6_init();
@@ -921,9 +915,7 @@ static void __exit inet6_exit(void)
/* Cleanup code parts. */
ipv6_packet_cleanup();
-#ifdef CONFIG_IPV6_MIP6
- mip6_fini();
-#endif
+
addrconf_cleanup();
ip6_flowlabel_cleanup();
ip6_route_cleanup();
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 01fa302d281..cc6884a40be 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -74,7 +74,7 @@ bad:
return 0;
}
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
/**
* ipv6_rearrange_destopt - rearrange IPv6 destination options header
* @iph: IPv6 header
@@ -228,7 +228,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
u8 nexthdr;
char tmp_base[8];
struct {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
struct in6_addr saddr;
#endif
struct in6_addr daddr;
@@ -255,7 +255,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
err = -ENOMEM;
goto error;
}
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
memcpy(tmp_ext, &top_iph->saddr, extlen);
#else
memcpy(tmp_ext, &top_iph->daddr, extlen);
@@ -294,7 +294,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
memcpy(top_iph, tmp_base, sizeof(tmp_base));
if (tmp_ext) {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
memcpy(&top_iph->saddr, tmp_ext, extlen);
#else
memcpy(&top_iph->daddr, tmp_ext, extlen);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index b1fe7ac5dc9..ba1386dd416 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -658,7 +658,7 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
switch (rthdr->type) {
case IPV6_SRCRT_TYPE_0:
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPV6_SRCRT_TYPE_2:
#endif
break;
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 14be0b9b77a..173a4bb5225 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -42,7 +42,7 @@
#include <net/ndisc.h>
#include <net/ip6_route.h>
#include <net/addrconf.h>
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
#include <net/xfrm.h>
#endif
@@ -90,6 +90,7 @@ int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
bad:
return -1;
}
+EXPORT_SYMBOL_GPL(ipv6_find_tlv);
/*
* Parsing tlv encoded headers.
@@ -196,7 +197,7 @@ bad:
Destination options header.
*****************************/
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
static int ipv6_dest_hao(struct sk_buff **skbp, int optoff)
{
struct sk_buff *skb = *skbp;
@@ -270,7 +271,7 @@ static int ipv6_dest_hao(struct sk_buff **skbp, int optoff)
#endif
static struct tlvtype_proc tlvprocdestopt_lst[] = {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
{
.type = IPV6_TLV_HAO,
.func = ipv6_dest_hao,
@@ -283,7 +284,7 @@ static int ipv6_destopt_rcv(struct sk_buff **skbp)
{
struct sk_buff *skb = *skbp;
struct inet6_skb_parm *opt = IP6CB(skb);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
__u16 dstbuf;
#endif
struct dst_entry *dst;
@@ -298,7 +299,7 @@ static int ipv6_destopt_rcv(struct sk_buff **skbp)
}
opt->lastopt = opt->dst1 = skb_network_header_len(skb);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
dstbuf = opt->dst1;
#endif
@@ -308,7 +309,7 @@ static int ipv6_destopt_rcv(struct sk_buff **skbp)
skb = *skbp;
skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3;
opt = IP6CB(skb);
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
opt->nhoff = dstbuf;
#else
opt->nhoff = opt->dst1;
@@ -427,7 +428,7 @@ static int ipv6_rthdr_rcv(struct sk_buff **skbp)
looped_back:
if (hdr->segments_left == 0) {
switch (hdr->type) {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPV6_SRCRT_TYPE_2:
/* Silently discard type 2 header unless it was
* processed by own
@@ -463,7 +464,7 @@ looped_back:
return -1;
}
break;
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPV6_SRCRT_TYPE_2:
/* Silently discard invalid RTH type 2 */
if (hdr->hdrlen != 2 || hdr->segments_left != 1) {
@@ -520,7 +521,7 @@ looped_back:
addr += i - 1;
switch (hdr->type) {
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPV6_SRCRT_TYPE_2:
if (xfrm6_input_addr(skb, (xfrm_address_t *)addr,
(xfrm_address_t *)&ipv6_hdr(skb)->saddr,
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index e9bcce9e7bd..4765a29f98a 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -272,7 +272,7 @@ static int icmpv6_getfrag(void *from, char *to, int offset, int len, int odd, st
return 0;
}
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
static void mip6_addr_swap(struct sk_buff *skb)
{
struct ipv6hdr *iph = ipv6_hdr(skb);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 4704b5fc308..31dafaf0b65 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -543,7 +543,7 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
found_rhdr = 1;
break;
case NEXTHDR_DEST:
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
if (ipv6_find_tlv(skb, offset, IPV6_TLV_HAO) >= 0)
break;
#endif
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index aa3d07c52a8..b636c38411f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -417,7 +417,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
struct ipv6_rt_hdr *rthdr = opt->srcrt;
switch (rthdr->type) {
case IPV6_SRCRT_TYPE_0:
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPV6_SRCRT_TYPE_2:
#endif
break;
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 13b7160fb89..20c78ecff6a 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -30,6 +30,7 @@
#include <net/sock.h>
#include <net/ipv6.h>
#include <net/ip6_checksum.h>
+#include <net/rawv6.h>
#include <net/xfrm.h>
#include <net/mip6.h>
@@ -86,7 +87,7 @@ static int mip6_mh_len(int type)
return len;
}
-int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
+static int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
{
struct ip6_mh *mh;
@@ -471,7 +472,7 @@ static struct xfrm_type mip6_rthdr_type =
.remote_addr = mip6_xfrm_addr,
};
-int __init mip6_init(void)
+static int __init mip6_init(void)
{
printk(KERN_INFO "Mobile IPv6\n");
@@ -483,18 +484,33 @@ int __init mip6_init(void)
printk(KERN_INFO "%s: can't add xfrm type(rthdr)\n", __FUNCTION__);
goto mip6_rthdr_xfrm_fail;
}
+ if (rawv6_mh_filter_register(mip6_mh_filter) < 0) {
+ printk(KERN_INFO "%s: can't add rawv6 mh filter\n", __FUNCTION__);
+ goto mip6_rawv6_mh_fail;
+ }
+
+
return 0;
+ mip6_rawv6_mh_fail:
+ xfrm_unregister_type(&mip6_rthdr_type, AF_INET6);
mip6_rthdr_xfrm_fail:
xfrm_unregister_type(&mip6_destopt_type, AF_INET6);
mip6_destopt_xfrm_fail:
return -EAGAIN;
}
-void __exit mip6_fini(void)
+static void __exit mip6_fini(void)
{
+ if (rawv6_mh_filter_unregister(mip6_mh_filter) < 0)
+ printk(KERN_INFO "%s: can't remove rawv6 mh filter\n", __FUNCTION__);
if (xfrm_unregister_type(&mip6_rthdr_type, AF_INET6) < 0)
printk(KERN_INFO "%s: can't remove xfrm type(rthdr)\n", __FUNCTION__);
if (xfrm_unregister_type(&mip6_destopt_type, AF_INET6) < 0)
printk(KERN_INFO "%s: can't remove xfrm type(destopt)\n", __FUNCTION__);
}
+
+module_init(mip6_init);
+module_exit(mip6_fini);
+
+MODULE_LICENSE("GPL");
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index a22c9c93d93..aac6aeb8de8 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -49,7 +49,7 @@
#include <net/udp.h>
#include <net/inet_common.h>
#include <net/tcp_states.h>
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
#include <net/mip6.h>
#endif
@@ -137,6 +137,28 @@ static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb)
return 0;
}
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
+static int (*mh_filter)(struct sock *sock, struct sk_buff *skb);
+
+int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
+ struct sk_buff *skb))
+{
+ rcu_assign_pointer(mh_filter, filter);
+ return 0;
+}
+EXPORT_SYMBOL(rawv6_mh_filter_register);
+
+int rawv6_mh_filter_unregister(int (*filter)(struct sock *sock,
+ struct sk_buff *skb))
+{
+ rcu_assign_pointer(mh_filter, NULL);
+ synchronize_rcu();
+ return 0;
+}
+EXPORT_SYMBOL(rawv6_mh_filter_unregister);
+
+#endif
+
/*
* demultiplex raw sockets.
* (should consider queueing the skb in the sock receive_queue
@@ -178,16 +200,22 @@ int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
case IPPROTO_ICMPV6:
filtered = icmpv6_filter(sk, skb);
break;
-#ifdef CONFIG_IPV6_MIP6
+
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPPROTO_MH:
+ {
/* XXX: To validate MH only once for each packet,
* this is placed here. It should be after checking
* xfrm policy, however it doesn't. The checking xfrm
* policy is placed in rawv6_rcv() because it is
* required for each socket.
*/
- filtered = mip6_mh_filter(sk, skb);
+ int (*filter)(struct sock *sock, struct sk_buff *skb);
+
+ filter = rcu_dereference(mh_filter);
+ filtered = filter ? filter(sk, skb) : 0;
break;
+ }
#endif
default:
filtered = 0;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 1faa2ea80af..3ec0c4770ee 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -18,7 +18,7 @@
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
#include <net/mip6.h>
#endif
@@ -318,7 +318,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl)
fl->proto = nexthdr;
return;
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPPROTO_MH:
if (pskb_may_pull(skb, nh + offset + 3 - skb->data)) {
struct ip6_mh *mh;
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index baa461b9f74..cdadb484746 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -65,7 +65,7 @@ __xfrm6_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n)
goto end;
/* Rule 2: select MIPv6 RO or inbound trigger */
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
for (i = 0; i < n; i++) {
if (src[i] &&
(src[i]->props.mode == XFRM_MODE_ROUTEOPTIMIZATION ||
@@ -130,7 +130,7 @@ __xfrm6_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n)
goto end;
/* Rule 2: select MIPv6 RO or inbound trigger */
-#ifdef CONFIG_IPV6_MIP6
+#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
for (i = 0; i < n; i++) {
if (src[i] &&
(src[i]->mode == XFRM_MODE_ROUTEOPTIMIZATION ||
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-02 20:47:44 +0000