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-rw-r--r--net/batman-adv/distributed-arp-table.c7
-rw-r--r--net/batman-adv/gateway_client.c8
-rw-r--r--net/batman-adv/multicast.c81
-rw-r--r--net/batman-adv/network-coding.c7
-rw-r--r--net/batman-adv/originator.c5
-rw-r--r--net/batman-adv/send.c3
-rw-r--r--net/batman-adv/soft-interface.c7
-rw-r--r--net/batman-adv/translation-table.c17
-rw-r--r--net/batman-adv/types.h15
9 files changed, 102 insertions, 48 deletions
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 6d0b471eede8..cc7d87d64987 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -19,6 +19,7 @@
#include "main.h"
#include <linux/atomic.h>
+#include <linux/bitops.h>
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
@@ -453,7 +454,7 @@ static bool batadv_is_orig_node_eligible(struct batadv_dat_candidate *res,
int j;
/* check if orig node candidate is running DAT */
- if (!(candidate->capabilities & BATADV_ORIG_CAPA_HAS_DAT))
+ if (!test_bit(BATADV_ORIG_CAPA_HAS_DAT, &candidate->capabilities))
goto out;
/* Check if this node has already been selected... */
@@ -713,9 +714,9 @@ static void batadv_dat_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
uint16_t tvlv_value_len)
{
if (flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND)
- orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_DAT;
+ clear_bit(BATADV_ORIG_CAPA_HAS_DAT, &orig->capabilities);
else
- orig->capabilities |= BATADV_ORIG_CAPA_HAS_DAT;
+ set_bit(BATADV_ORIG_CAPA_HAS_DAT, &orig->capabilities);
}
/**
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index cffa92dd9877..6012e2b4af4f 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -153,15 +153,11 @@ batadv_gw_get_best_gw_node(struct batadv_priv *bat_priv)
struct batadv_neigh_node *router;
struct batadv_neigh_ifinfo *router_ifinfo;
struct batadv_gw_node *gw_node, *curr_gw = NULL;
- uint32_t max_gw_factor = 0, tmp_gw_factor = 0;
- uint32_t gw_divisor;
+ uint64_t max_gw_factor = 0, tmp_gw_factor = 0;
uint8_t max_tq = 0;
uint8_t tq_avg;
struct batadv_orig_node *orig_node;
- gw_divisor = BATADV_TQ_LOCAL_WINDOW_SIZE * BATADV_TQ_LOCAL_WINDOW_SIZE;
- gw_divisor *= 64;
-
rcu_read_lock();
hlist_for_each_entry_rcu(gw_node, &bat_priv->gw.list, list) {
if (gw_node->deleted)
@@ -187,7 +183,7 @@ batadv_gw_get_best_gw_node(struct batadv_priv *bat_priv)
tmp_gw_factor = tq_avg * tq_avg;
tmp_gw_factor *= gw_node->bandwidth_down;
tmp_gw_factor *= 100 * 100;
- tmp_gw_factor /= gw_divisor;
+ tmp_gw_factor >>= 18;
if ((tmp_gw_factor > max_gw_factor) ||
((tmp_gw_factor == max_gw_factor) &&
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 7aa480b7edd0..68a9554961eb 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -19,6 +19,8 @@
#include "main.h"
#include <linux/atomic.h>
+#include <linux/bitops.h>
+#include <linux/bug.h>
#include <linux/byteorder/generic.h>
#include <linux/errno.h>
#include <linux/etherdevice.h>
@@ -588,19 +590,26 @@ batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
*
* If the BATADV_MCAST_WANT_ALL_UNSNOOPABLES flag of this originator,
* orig, has toggled then this method updates counter and list accordingly.
+ *
+ * Caller needs to hold orig->mcast_handler_lock.
*/
static void batadv_mcast_want_unsnoop_update(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig,
uint8_t mcast_flags)
{
+ struct hlist_node *node = &orig->mcast_want_all_unsnoopables_node;
+ struct hlist_head *head = &bat_priv->mcast.want_all_unsnoopables_list;
+
/* switched from flag unset to set */
if (mcast_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES &&
!(orig->mcast_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES)) {
atomic_inc(&bat_priv->mcast.num_want_all_unsnoopables);
spin_lock_bh(&bat_priv->mcast.want_lists_lock);
- hlist_add_head_rcu(&orig->mcast_want_all_unsnoopables_node,
- &bat_priv->mcast.want_all_unsnoopables_list);
+ /* flag checks above + mcast_handler_lock prevents this */
+ WARN_ON(!hlist_unhashed(node));
+
+ hlist_add_head_rcu(node, head);
spin_unlock_bh(&bat_priv->mcast.want_lists_lock);
/* switched from flag set to unset */
} else if (!(mcast_flags & BATADV_MCAST_WANT_ALL_UNSNOOPABLES) &&
@@ -608,7 +617,10 @@ static void batadv_mcast_want_unsnoop_update(struct batadv_priv *bat_priv,
atomic_dec(&bat_priv->mcast.num_want_all_unsnoopables);
spin_lock_bh(&bat_priv->mcast.want_lists_lock);
- hlist_del_rcu(&orig->mcast_want_all_unsnoopables_node);
+ /* flag checks above + mcast_handler_lock prevents this */
+ WARN_ON(hlist_unhashed(node));
+
+ hlist_del_init_rcu(node);
spin_unlock_bh(&bat_priv->mcast.want_lists_lock);
}
}
@@ -621,19 +633,26 @@ static void batadv_mcast_want_unsnoop_update(struct batadv_priv *bat_priv,
*
* If the BATADV_MCAST_WANT_ALL_IPV4 flag of this originator, orig, has
* toggled then this method updates counter and list accordingly.
+ *
+ * Caller needs to hold orig->mcast_handler_lock.
*/
static void batadv_mcast_want_ipv4_update(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig,
uint8_t mcast_flags)
{
+ struct hlist_node *node = &orig->mcast_want_all_ipv4_node;
+ struct hlist_head *head = &bat_priv->mcast.want_all_ipv4_list;
+
/* switched from flag unset to set */
if (mcast_flags & BATADV_MCAST_WANT_ALL_IPV4 &&
!(orig->mcast_flags & BATADV_MCAST_WANT_ALL_IPV4)) {
atomic_inc(&bat_priv->mcast.num_want_all_ipv4);
spin_lock_bh(&bat_priv->mcast.want_lists_lock);
- hlist_add_head_rcu(&orig->mcast_want_all_ipv4_node,
- &bat_priv->mcast.want_all_ipv4_list);
+ /* flag checks above + mcast_handler_lock prevents this */
+ WARN_ON(!hlist_unhashed(node));
+
+ hlist_add_head_rcu(node, head);
spin_unlock_bh(&bat_priv->mcast.want_lists_lock);
/* switched from flag set to unset */
} else if (!(mcast_flags & BATADV_MCAST_WANT_ALL_IPV4) &&
@@ -641,7 +660,10 @@ static void batadv_mcast_want_ipv4_update(struct batadv_priv *bat_priv,
atomic_dec(&bat_priv->mcast.num_want_all_ipv4);
spin_lock_bh(&bat_priv->mcast.want_lists_lock);
- hlist_del_rcu(&orig->mcast_want_all_ipv4_node);
+ /* flag checks above + mcast_handler_lock prevents this */
+ WARN_ON(hlist_unhashed(node));
+
+ hlist_del_init_rcu(node);
spin_unlock_bh(&bat_priv->mcast.want_lists_lock);
}
}
@@ -654,19 +676,26 @@ static void batadv_mcast_want_ipv4_update(struct batadv_priv *bat_priv,
*
* If the BATADV_MCAST_WANT_ALL_IPV6 flag of this originator, orig, has
* toggled then this method updates counter and list accordingly.
+ *
+ * Caller needs to hold orig->mcast_handler_lock.
*/
static void batadv_mcast_want_ipv6_update(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig,
uint8_t mcast_flags)
{
+ struct hlist_node *node = &orig->mcast_want_all_ipv6_node;
+ struct hlist_head *head = &bat_priv->mcast.want_all_ipv6_list;
+
/* switched from flag unset to set */
if (mcast_flags & BATADV_MCAST_WANT_ALL_IPV6 &&
!(orig->mcast_flags & BATADV_MCAST_WANT_ALL_IPV6)) {
atomic_inc(&bat_priv->mcast.num_want_all_ipv6);
spin_lock_bh(&bat_priv->mcast.want_lists_lock);
- hlist_add_head_rcu(&orig->mcast_want_all_ipv6_node,
- &bat_priv->mcast.want_all_ipv6_list);
+ /* flag checks above + mcast_handler_lock prevents this */
+ WARN_ON(!hlist_unhashed(node));
+
+ hlist_add_head_rcu(node, head);
spin_unlock_bh(&bat_priv->mcast.want_lists_lock);
/* switched from flag set to unset */
} else if (!(mcast_flags & BATADV_MCAST_WANT_ALL_IPV6) &&
@@ -674,7 +703,10 @@ static void batadv_mcast_want_ipv6_update(struct batadv_priv *bat_priv,
atomic_dec(&bat_priv->mcast.num_want_all_ipv6);
spin_lock_bh(&bat_priv->mcast.want_lists_lock);
- hlist_del_rcu(&orig->mcast_want_all_ipv6_node);
+ /* flag checks above + mcast_handler_lock prevents this */
+ WARN_ON(hlist_unhashed(node));
+
+ hlist_del_init_rcu(node);
spin_unlock_bh(&bat_priv->mcast.want_lists_lock);
}
}
@@ -697,39 +729,42 @@ static void batadv_mcast_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
uint8_t mcast_flags = BATADV_NO_FLAGS;
bool orig_initialized;
- orig_initialized = orig->capa_initialized & BATADV_ORIG_CAPA_HAS_MCAST;
+ if (orig_mcast_enabled && tvlv_value &&
+ (tvlv_value_len >= sizeof(mcast_flags)))
+ mcast_flags = *(uint8_t *)tvlv_value;
+
+ spin_lock_bh(&orig->mcast_handler_lock);
+ orig_initialized = test_bit(BATADV_ORIG_CAPA_HAS_MCAST,
+ &orig->capa_initialized);
/* If mcast support is turned on decrease the disabled mcast node
* counter only if we had increased it for this node before. If this
* is a completely new orig_node no need to decrease the counter.
*/
if (orig_mcast_enabled &&
- !(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST)) {
+ !test_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig->capabilities)) {
if (orig_initialized)
atomic_dec(&bat_priv->mcast.num_disabled);
- orig->capabilities |= BATADV_ORIG_CAPA_HAS_MCAST;
+ set_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig->capabilities);
/* If mcast support is being switched off or if this is an initial
* OGM without mcast support then increase the disabled mcast
* node counter.
*/
} else if (!orig_mcast_enabled &&
- (orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST ||
+ (test_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig->capabilities) ||
!orig_initialized)) {
atomic_inc(&bat_priv->mcast.num_disabled);
- orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_MCAST;
+ clear_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig->capabilities);
}
- orig->capa_initialized |= BATADV_ORIG_CAPA_HAS_MCAST;
-
- if (orig_mcast_enabled && tvlv_value &&
- (tvlv_value_len >= sizeof(mcast_flags)))
- mcast_flags = *(uint8_t *)tvlv_value;
+ set_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig->capa_initialized);
batadv_mcast_want_unsnoop_update(bat_priv, orig, mcast_flags);
batadv_mcast_want_ipv4_update(bat_priv, orig, mcast_flags);
batadv_mcast_want_ipv6_update(bat_priv, orig, mcast_flags);
orig->mcast_flags = mcast_flags;
+ spin_unlock_bh(&orig->mcast_handler_lock);
}
/**
@@ -763,11 +798,15 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig)
{
struct batadv_priv *bat_priv = orig->bat_priv;
- if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) &&
- orig->capa_initialized & BATADV_ORIG_CAPA_HAS_MCAST)
+ spin_lock_bh(&orig->mcast_handler_lock);
+
+ if (!test_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig->capabilities) &&
+ test_bit(BATADV_ORIG_CAPA_HAS_MCAST, &orig->capa_initialized))
atomic_dec(&bat_priv->mcast.num_disabled);
batadv_mcast_want_unsnoop_update(bat_priv, orig, BATADV_NO_FLAGS);
batadv_mcast_want_ipv4_update(bat_priv, orig, BATADV_NO_FLAGS);
batadv_mcast_want_ipv6_update(bat_priv, orig, BATADV_NO_FLAGS);
+
+ spin_unlock_bh(&orig->mcast_handler_lock);
}
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index f0a50f31d822..46604010dcd4 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -19,6 +19,7 @@
#include "main.h"
#include <linux/atomic.h>
+#include <linux/bitops.h>
#include <linux/byteorder/generic.h>
#include <linux/compiler.h>
#include <linux/debugfs.h>
@@ -134,9 +135,9 @@ static void batadv_nc_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
uint16_t tvlv_value_len)
{
if (flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND)
- orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_NC;
+ clear_bit(BATADV_ORIG_CAPA_HAS_NC, &orig->capabilities);
else
- orig->capabilities |= BATADV_ORIG_CAPA_HAS_NC;
+ set_bit(BATADV_ORIG_CAPA_HAS_NC, &orig->capabilities);
}
/**
@@ -894,7 +895,7 @@ void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
goto out;
/* check if orig node is network coding enabled */
- if (!(orig_node->capabilities & BATADV_ORIG_CAPA_HAS_NC))
+ if (!test_bit(BATADV_ORIG_CAPA_HAS_NC, &orig_node->capabilities))
goto out;
/* accept ogms from 'good' neighbors and single hop neighbors */
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 018b7495ad84..32a0fcfab36d 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -696,8 +696,13 @@ struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
orig_node->last_seen = jiffies;
reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);
orig_node->bcast_seqno_reset = reset_time;
+
#ifdef CONFIG_BATMAN_ADV_MCAST
orig_node->mcast_flags = BATADV_NO_FLAGS;
+ INIT_HLIST_NODE(&orig_node->mcast_want_all_unsnoopables_node);
+ INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv4_node);
+ INIT_HLIST_NODE(&orig_node->mcast_want_all_ipv6_node);
+ spin_lock_init(&orig_node->mcast_handler_lock);
#endif
/* create a vlan object for the "untagged" LAN */
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 0a01992e65ab..191076ef1eca 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -616,7 +616,8 @@ batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
* we delete only packets belonging to the given interface
*/
if ((hard_iface) &&
- (forw_packet->if_incoming != hard_iface))
+ (forw_packet->if_incoming != hard_iface) &&
+ (forw_packet->if_outgoing != hard_iface))
continue;
spin_unlock_bh(&bat_priv->forw_bcast_list_lock);
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index a2fc843c2243..51cda3a7c51d 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -202,6 +202,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
int gw_mode;
enum batadv_forw_mode forw_mode;
struct batadv_orig_node *mcast_single_orig = NULL;
+ int network_offset = ETH_HLEN;
if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
goto dropped;
@@ -214,14 +215,18 @@ static int batadv_interface_tx(struct sk_buff *skb,
case ETH_P_8021Q:
vhdr = vlan_eth_hdr(skb);
- if (vhdr->h_vlan_encapsulated_proto != ethertype)
+ if (vhdr->h_vlan_encapsulated_proto != ethertype) {
+ network_offset += VLAN_HLEN;
break;
+ }
/* fall through */
case ETH_P_BATMAN:
goto dropped;
}
+ skb_set_network_header(skb, network_offset);
+
if (batadv_bla_tx(bat_priv, skb, vid))
goto dropped;
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 5e953297d3b2..db06de20d996 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -19,6 +19,7 @@
#include "main.h"
#include <linux/atomic.h>
+#include <linux/bitops.h>
#include <linux/bug.h>
#include <linux/byteorder/generic.h>
#include <linux/compiler.h>
@@ -1879,7 +1880,7 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
}
spin_unlock_bh(list_lock);
}
- orig_node->capa_initialized &= ~BATADV_ORIG_CAPA_HAS_TT;
+ clear_bit(BATADV_ORIG_CAPA_HAS_TT, &orig_node->capa_initialized);
}
static bool batadv_tt_global_to_purge(struct batadv_tt_global_entry *tt_global,
@@ -2212,7 +2213,7 @@ static void batadv_tt_req_list_free(struct batadv_priv *bat_priv)
spin_lock_bh(&bat_priv->tt.req_list_lock);
list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
- list_del(&node->list);
+ list_del_init(&node->list);
kfree(node);
}
@@ -2248,7 +2249,7 @@ static void batadv_tt_req_purge(struct batadv_priv *bat_priv)
list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
if (batadv_has_timed_out(node->issued_at,
BATADV_TT_REQUEST_TIMEOUT)) {
- list_del(&node->list);
+ list_del_init(&node->list);
kfree(node);
}
}
@@ -2530,7 +2531,8 @@ out:
batadv_hardif_free_ref(primary_if);
if (ret && tt_req_node) {
spin_lock_bh(&bat_priv->tt.req_list_lock);
- list_del(&tt_req_node->list);
+ /* list_del_init() verifies tt_req_node still is in the list */
+ list_del_init(&tt_req_node->list);
spin_unlock_bh(&bat_priv->tt.req_list_lock);
kfree(tt_req_node);
}
@@ -2838,7 +2840,7 @@ static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
return;
}
}
- orig_node->capa_initialized |= BATADV_ORIG_CAPA_HAS_TT;
+ set_bit(BATADV_ORIG_CAPA_HAS_TT, &orig_node->capa_initialized);
}
static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
@@ -2967,7 +2969,7 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
if (!batadv_compare_eth(node->addr, resp_src))
continue;
- list_del(&node->list);
+ list_del_init(&node->list);
kfree(node);
}
@@ -3340,7 +3342,8 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
bool has_tt_init;
tt_vlan = (struct batadv_tvlv_tt_vlan_data *)tt_buff;
- has_tt_init = orig_node->capa_initialized & BATADV_ORIG_CAPA_HAS_TT;
+ has_tt_init = test_bit(BATADV_ORIG_CAPA_HAS_TT,
+ &orig_node->capa_initialized);
/* orig table not initialised AND first diff is in the OGM OR the ttvn
* increased by one -> we can apply the attached changes
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 67d63483618e..55610a805b53 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -221,6 +221,7 @@ struct batadv_orig_bat_iv {
* @batadv_dat_addr_t: address of the orig node in the distributed hash
* @last_seen: time when last packet from this node was received
* @bcast_seqno_reset: time when the broadcast seqno window was reset
+ * @mcast_handler_lock: synchronizes mcast-capability and -flag changes
* @mcast_flags: multicast flags announced by the orig node
* @mcast_want_all_unsnoop_node: a list node for the
* mcast.want_all_unsnoopables list
@@ -268,13 +269,15 @@ struct batadv_orig_node {
unsigned long last_seen;
unsigned long bcast_seqno_reset;
#ifdef CONFIG_BATMAN_ADV_MCAST
+ /* synchronizes mcast tvlv specific orig changes */
+ spinlock_t mcast_handler_lock;
uint8_t mcast_flags;
struct hlist_node mcast_want_all_unsnoopables_node;
struct hlist_node mcast_want_all_ipv4_node;
struct hlist_node mcast_want_all_ipv6_node;
#endif
- uint8_t capabilities;
- uint8_t capa_initialized;
+ unsigned long capabilities;
+ unsigned long capa_initialized;
atomic_t last_ttvn;
unsigned char *tt_buff;
int16_t tt_buff_len;
@@ -313,10 +316,10 @@ struct batadv_orig_node {
* (= orig node announces a tvlv of type BATADV_TVLV_MCAST)
*/
enum batadv_orig_capabilities {
- BATADV_ORIG_CAPA_HAS_DAT = BIT(0),
- BATADV_ORIG_CAPA_HAS_NC = BIT(1),
- BATADV_ORIG_CAPA_HAS_TT = BIT(2),
- BATADV_ORIG_CAPA_HAS_MCAST = BIT(3),
+ BATADV_ORIG_CAPA_HAS_DAT,
+ BATADV_ORIG_CAPA_HAS_NC,
+ BATADV_ORIG_CAPA_HAS_TT,
+ BATADV_ORIG_CAPA_HAS_MCAST,
};
/**
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 02:27:20 +0300