#include <linux/version.h> /* LINUX_VERSION_CODE */
#include <linux/types.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0)
+#if LINUX_VERSION_IS_LESS(5, 14, 0)
-#define dev_get_iflink(_net_dev) ((_net_dev)->iflink)
+#include <linux/if_bridge.h>
+#include <net/addrconf.h>
-#endif /* < KERNEL_VERSION(4, 1, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
-
-#include <linux/netdevice.h>
-
-#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info, extack) ({\
- BUILD_BUG_ON(upper_priv != NULL); \
- BUILD_BUG_ON(upper_info != NULL); \
- BUILD_BUG_ON(extack != NULL); \
- netdev_master_upper_dev_link(dev, upper_dev); \
-})
-
-#elif LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
-
-#include <linux/netdevice.h>
-
-#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info, extack) ({\
- BUILD_BUG_ON(extack != NULL); \
- netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info); \
-})
-
-#endif /* < KERNEL_VERSION(4, 5, 0) */
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
-
-/* wild hack for batadv_getlink_net only */
-#define get_link_net get_xstats_size || 1 ? fallback_net : (struct net*)netdev->rtnl_link_ops->get_xstats_size
-
-#endif /* < KERNEL_VERSION(4, 0, 0) */
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)
-
-struct sk_buff *skb_checksum_trimmed(struct sk_buff *skb,
- unsigned int transport_len,
- __sum16(*skb_chkf)(struct sk_buff *skb));
-
-int ip_mc_check_igmp(struct sk_buff *skb, struct sk_buff **skb_trimmed);
-
-int ipv6_mc_check_mld(struct sk_buff *skb, struct sk_buff **skb_trimmed);
-
-#endif /* < KERNEL_VERSION(4, 2, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)
-
-#define IFF_NO_QUEUE 0; dev->tx_queue_len = 0
-
-static inline bool hlist_fake(struct hlist_node *h)
+#if IS_ENABLED(CONFIG_IPV6)
+static inline bool
+br_multicast_has_router_adjacent(struct net_device *dev, int proto)
{
- return h->pprev == &h->next;
-}
-
-#endif /* < KERNEL_VERSION(4, 3, 0) */
+ struct list_head bridge_mcast_list = LIST_HEAD_INIT(bridge_mcast_list);
+ struct br_ip_list *br_ip_entry, *tmp;
+ int ret;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
+ if (proto != ETH_P_IPV6)
+ return true;
-#include <linux/ethtool.h>
+ ret = br_multicast_list_adjacent(dev, &bridge_mcast_list);
+ if (ret < 0)
+ return true;
-#define ethtool_link_ksettings batadv_ethtool_link_ksettings
+ ret = false;
-struct batadv_ethtool_link_ksettings {
- struct {
- __u32 speed;
- __u8 duplex;
- __u8 autoneg;
- } base;
-};
+ list_for_each_entry_safe(br_ip_entry, tmp, &bridge_mcast_list, list) {
+ if (br_ip_entry->addr.proto == htons(ETH_P_IPV6) &&
+ ipv6_addr_is_ll_all_routers(&br_ip_entry->addr.dst.ip6))
+ ret = true;
-#define __ethtool_get_link_ksettings(__dev, __link_settings) \
- batadv_ethtool_get_link_ksettings(__dev, __link_settings)
+ list_del(&br_ip_entry->list);
+ kfree(br_ip_entry);
+ }
-static inline int
-batadv_ethtool_get_link_ksettings(struct net_device *dev,
- struct ethtool_link_ksettings *link_ksettings)
+ return ret;
+}
+#else
+static inline bool
+br_multicast_has_router_adjacent(struct net_device *dev, int proto)
{
- struct ethtool_cmd cmd;
- int ret;
-
- memset(&cmd, 0, sizeof(cmd));
- ret = __ethtool_get_settings(dev, &cmd);
-
- if (ret != 0)
- return ret;
-
- link_ksettings->base.duplex = cmd.duplex;
- link_ksettings->base.speed = ethtool_cmd_speed(&cmd);
- link_ksettings->base.autoneg = cmd.autoneg;
-
- return 0;
+ return true;
}
-
-#endif /* < KERNEL_VERSION(4, 6, 0) */
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)
-
-#include_next <linux/cache.h>
-
-/* hack for netlink.c which marked the family ops as ro */
-#ifdef __ro_after_init
-#undef __ro_after_init
#endif
-#define __ro_after_init
-#endif /* < KERNEL_VERSION(4, 10, 0) */
+#endif /* LINUX_VERSION_IS_LESS(5, 14, 0) */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 9)
+#if LINUX_VERSION_IS_LESS(6, 0, 0)
-#include <linux/netdevice.h>
+#define __vstring(item, fmt, ap) __dynamic_array(char, item, 256)
+#define __assign_vstr(dst, fmt, va) \
+ WARN_ON_ONCE(vsnprintf(__get_dynamic_array(dst), 256, fmt, *va) >= 256)
-/* work around missing attribute needs_free_netdev and priv_destructor in
- * net_device
- */
-#define ether_setup(dev) \
- void batadv_softif_free2(struct net_device *dev) \
- { \
- batadv_softif_free(dev); \
- free_netdev(dev); \
- } \
- void (*t1)(struct net_device *dev) __attribute__((unused)); \
- bool t2 __attribute__((unused)); \
- ether_setup(dev)
-#define needs_free_netdev destructor = batadv_softif_free2; t2
-#define priv_destructor destructor = batadv_softif_free2; t1
+#endif /* LINUX_VERSION_IS_LESS(6, 0, 0) */
-#endif /* < KERNEL_VERSION(4, 11, 9) */
+#if LINUX_VERSION_IS_LESS(6, 2, 0)
+#include <linux/random.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
+#define genl_split_ops genl_ops
-#define batadv_softif_slave_add(__dev, __slave_dev, __extack) \
- batadv_softif_slave_add(__dev, __slave_dev)
-
-#endif /* < KERNEL_VERSION(4, 15, 0) */
-
-#ifndef from_timer
-
-#define TIMER_DATA_TYPE unsigned long
-#define TIMER_FUNC_TYPE void (*)(TIMER_DATA_TYPE)
-
-static inline void timer_setup(struct timer_list *timer,
- void (*callback)(struct timer_list *),
- unsigned int flags)
+static inline u32 batadv_get_random_u32_below(u32 ep_ro)
{
- __setup_timer(timer, (TIMER_FUNC_TYPE)callback,
- (TIMER_DATA_TYPE)timer, flags);
+ return prandom_u32_max(ep_ro);
}
-#define from_timer(var, callback_timer, timer_fieldname) \
- container_of(callback_timer, typeof(*var), timer_fieldname)
+#define get_random_u32_below batadv_get_random_u32_below
-#endif /* !from_timer */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 16, 0)
+#endif /* LINUX_VERSION_IS_LESS(6, 2, 0) */
+#if LINUX_VERSION_IS_LESS(6, 4, 0)
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 18, 0)
+#include <linux/if_vlan.h>
-#include <net/cfg80211.h>
-
-/* cfg80211 fix: https://patchwork.kernel.org/patch/10449857/ */
-static inline int batadv_cfg80211_get_station(struct net_device *dev,
- const u8 *mac_addr,
- struct station_info *sinfo)
-{
- memset(sinfo, 0, sizeof(*sinfo));
- return cfg80211_get_station(dev, mac_addr, sinfo);
-}
-
-#define cfg80211_get_station(dev, mac_addr, sinfo) \
- batadv_cfg80211_get_station(dev, mac_addr, sinfo)
-
-#endif /* < KERNEL_VERSION(4, 18, 0) */
-
-
-#ifdef __CHECK_POLL
-typedef unsigned __bitwise __poll_t;
-#else
-typedef unsigned __poll_t;
-#endif
-
-#endif /* < KERNEL_VERSION(4, 16, 0) */
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0)
-
-static inline int batadv_access_ok(int type, const void __user *p,
- unsigned long size)
+/* Prefer this version in TX path, instead of
+ * skb_reset_mac_header() + vlan_eth_hdr()
+ */
+static inline struct vlan_ethhdr *skb_vlan_eth_hdr(const struct sk_buff *skb)
{
- return access_ok(type, p, size);
+ return (struct vlan_ethhdr *)skb->data;
}
-#ifdef access_ok
-#undef access_ok
-#endif
-
-#define access_ok_get(_1, _2, _3 , access_ok_name, ...) access_ok_name
-#define access_ok(...) \
- access_ok_get(__VA_ARGS__, access_ok3, access_ok2)(__VA_ARGS__)
-
-#define access_ok2(addr, size) batadv_access_ok(VERIFY_WRITE, (addr), (size))
-#define access_ok3(type, addr, size) batadv_access_ok((type), (addr), (size))
-
-#endif /* < KERNEL_VERSION(5, 0, 0) */
+#endif /* LINUX_VERSION_IS_LESS(6, 4, 0) */
/* <DECLARE_EWMA> */
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