projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ad7bf36 MB |
1 | /* |
| 2 | * Copyright (c) 2014 Mahesh Bandewar <maheshb@google.com> | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License as | |
| 6 | * published by the Free Software Foundation; either version 2 of | |
| 7 | * the License, or (at your option) any later version. | |
| 8 | * | |
| 9 | */ | |
| 10 | #ifndef __IPVLAN_H | |
| 11 | #define __IPVLAN_H | |
| 12 | ||
| 13 | #include <linux/kernel.h> | |
| 14 | #include <linux/types.h> | |
| 15 | #include <linux/module.h> | |
| 16 | #include <linux/init.h> | |
| 17 | #include <linux/rculist.h> | |
| 18 | #include <linux/notifier.h> | |
| 19 | #include <linux/netdevice.h> | |
| 20 | #include <linux/etherdevice.h> | |
| 21 | #include <linux/if_arp.h> | |
| 22 | #include <linux/if_link.h> | |
| 23 | #include <linux/if_vlan.h> | |
| 24 | #include <linux/ip.h> | |
| 25 | #include <linux/inetdevice.h> | |
| 265de6d1 MB |
26 | #include <net/ip.h> |
| 27 | #include <net/ip6_route.h> | |
| 2ad7bf36 | 28 | #include <net/rtnetlink.h> |
| 2ad7bf36 MB |
29 | #include <net/route.h> |
| 30 | #include <net/addrconf.h> | |
| 31 | ||
| 32 | #define IPVLAN_DRV "ipvlan" | |
| 33 | #define IPV_DRV_VER "0.1" | |
| 34 | ||
| 35 | #define IPVLAN_HASH_SIZE (1 << BITS_PER_BYTE) | |
| 36 | #define IPVLAN_HASH_MASK (IPVLAN_HASH_SIZE - 1) | |
| 37 | ||
| 38 | #define IPVLAN_MAC_FILTER_BITS 8 | |
| 39 | #define IPVLAN_MAC_FILTER_SIZE (1 << IPVLAN_MAC_FILTER_BITS) | |
| 40 | #define IPVLAN_MAC_FILTER_MASK (IPVLAN_MAC_FILTER_SIZE - 1) | |
| 41 | ||
| 42 | typedef enum { | |
| 43 | IPVL_IPV6 = 0, | |
| 44 | IPVL_ICMPV6, | |
| 45 | IPVL_IPV4, | |
| 46 | IPVL_ARP, | |
| 47 | } ipvl_hdr_type; | |
| 48 | ||
| 49 | struct ipvl_pcpu_stats { | |
| 50 | u64 rx_pkts; | |
| 51 | u64 rx_bytes; | |
| 52 | u64 rx_mcast; | |
| 53 | u64 tx_pkts; | |
| 54 | u64 tx_bytes; | |
| 55 | struct u64_stats_sync syncp; | |
| 56 | u32 rx_errs; | |
| 57 | u32 tx_drps; | |
| 58 | }; | |
| 59 | ||
| 60 | struct ipvl_port; | |
| 61 | ||
| 62 | struct ipvl_dev { | |
| 63 | struct net_device *dev; | |
| 64 | struct list_head pnode; | |
| 65 | struct ipvl_port *port; | |
| 66 | struct net_device *phy_dev; | |
| 67 | struct list_head addrs; | |
| 68 | int ipv4cnt; | |
| 69 | int ipv6cnt; | |
| 6aa6395f | 70 | struct ipvl_pcpu_stats __percpu *pcpu_stats; |
| 2ad7bf36 MB |
71 | DECLARE_BITMAP(mac_filters, IPVLAN_MAC_FILTER_SIZE); |
| 72 | netdev_features_t sfeatures; | |
| 73 | u32 msg_enable; | |
| 74 | u16 mtu_adj; | |
| 75 | }; | |
| 76 | ||
| 77 | struct ipvl_addr { | |
| 78 | struct ipvl_dev *master; /* Back pointer to master */ | |
| 79 | union { | |
| 80 | struct in6_addr ip6; /* IPv6 address on logical interface */ | |
| 81 | struct in_addr ip4; /* IPv4 address on logical interface */ | |
| 82 | } ipu; | |
| 83 | #define ip6addr ipu.ip6 | |
| 84 | #define ip4addr ipu.ip4 | |
| 85 | struct hlist_node hlnode; /* Hash-table linkage */ | |
| 86 | struct list_head anode; /* logical-interface linkage */ | |
| 87 | struct rcu_head rcu; | |
| 88 | ipvl_hdr_type atype; | |
| 89 | }; | |
| 90 | ||
| 91 | struct ipvl_port { | |
| 92 | struct net_device *dev; | |
| 93 | struct hlist_head hlhead[IPVLAN_HASH_SIZE]; | |
| 94 | struct list_head ipvlans; | |
| 95 | struct rcu_head rcu; | |
| 96 | int count; | |
| 97 | u16 mode; | |
| 98 | }; | |
| 99 | ||
| 100 | static inline struct ipvl_port *ipvlan_port_get_rcu(const struct net_device *d) | |
| 101 | { | |
| 102 | return rcu_dereference(d->rx_handler_data); | |
| 103 | } | |
| 104 | ||
| 105 | static inline struct ipvl_port *ipvlan_port_get_rtnl(const struct net_device *d) | |
| 106 | { | |
| 107 | return rtnl_dereference(d->rx_handler_data); | |
| 108 | } | |
| 109 | ||
| 2ad7bf36 MB |
110 | void ipvlan_adjust_mtu(struct ipvl_dev *ipvlan, struct net_device *dev); |
| 111 | void ipvlan_set_port_mode(struct ipvl_port *port, u32 nval); | |
| 112 | void ipvlan_init_secret(void); | |
| 113 | unsigned int ipvlan_mac_hash(const unsigned char *addr); | |
| 114 | rx_handler_result_t ipvlan_handle_frame(struct sk_buff **pskb); | |
| 115 | int ipvlan_queue_xmit(struct sk_buff *skb, struct net_device *dev); | |
| 116 | void ipvlan_ht_addr_add(struct ipvl_dev *ipvlan, struct ipvl_addr *addr); | |
| e9997c29 JB |
117 | struct ipvl_addr *ipvlan_find_addr(const struct ipvl_dev *ipvlan, |
| 118 | const void *iaddr, bool is_v6); | |
| 119 | bool ipvlan_addr_busy(struct ipvl_port *port, void *iaddr, bool is_v6); | |
| 2ad7bf36 MB |
120 | struct ipvl_addr *ipvlan_ht_addr_lookup(const struct ipvl_port *port, |
| 121 | const void *iaddr, bool is_v6); | |
| 122 | void ipvlan_ht_addr_del(struct ipvl_addr *addr, bool sync); | |
| 123 | #endif /* __IPVLAN_H */ |