1 #ifndef MINIX_NET_LWIP_IFDEV_H 2 #define MINIX_NET_LWIP_IFDEV_H 3 4 #include <net/if.h> 5 #include <net/if_types.h> 6 #include <netinet6/in6_var.h> 7 #include <netinet6/nd6.h> 8 9 /* 10 * NetBSD makes setting a hardware address through ifconfig(8) a whole lot 11 * harder than it needs to be, namely by keeping a list of possible hardware 12 * addresses and marking one of them as active. For us, that level of extra 13 * flexibility is completely useless. In order to shield individual interface 14 * modules from having to deal with the rather extended interface for the list 15 * management, we maintain the list in ifdev and simply use a iop_set_hwaddr() 16 * call to the modules when the active address changes. This setting is the 17 * maximum number of hardware addresses in the list maintained by ifdev. It 18 * should be at least 2, or changing hardware addresses will not be possible. 19 */ 20 #define IFDEV_NUM_HWADDRS 3 21 22 struct ifdev; 23 struct bpfdev_link; 24 struct sockaddr_dlx; 25 26 /* Interface operations table. */ 27 struct ifdev_ops { 28 err_t (* iop_init)(struct ifdev * ifdev, struct netif * netif); 29 err_t (* iop_input)(struct pbuf * pbuf, struct netif * netif); 30 err_t (* iop_output)(struct ifdev * ifdev, struct pbuf * pbuf, 31 struct netif * netif); 32 err_t (* iop_output_v4)(struct netif * netif, struct pbuf * pbuf, 33 const ip4_addr_t * ipaddr); 34 err_t (* iop_output_v6)(struct netif * netif, struct pbuf * pbuf, 35 const ip6_addr_t * ipaddr); 36 void (* iop_hdrcmplt)(struct ifdev * ifdev, struct pbuf * pbuf); 37 void (* iop_poll)(struct ifdev * ifdev); 38 int (* iop_set_ifflags)(struct ifdev * ifdev, unsigned int ifflags); 39 void (* iop_get_ifcap)(struct ifdev * ifdev, uint64_t * ifcap, 40 uint64_t * ifena); 41 int (* iop_set_ifcap)(struct ifdev * ifdev, uint64_t ifcap); 42 void (* iop_get_ifmedia)(struct ifdev * ifdev, int * ifcurrent, 43 int * ifactive); 44 int (* iop_set_ifmedia)(struct ifdev * ifdev, int ifmedia); 45 void (* iop_set_promisc)(struct ifdev * ifdev, int promisc); 46 int (* iop_set_hwaddr)(struct ifdev * ifdev, const uint8_t * hwaddr); 47 int (* iop_set_mtu)(struct ifdev * ifdev, unsigned int mtu); 48 int (* iop_destroy)(struct ifdev * ifdev); 49 }; 50 51 /* Hardware address list entry. The first entry, if any, is the active one. */ 52 struct ifdev_hwaddr { 53 uint8_t ifhwa_addr[NETIF_MAX_HWADDR_LEN]; 54 uint8_t ifhwa_flags; 55 }; 56 #define IFHWAF_VALID 0x01 /* entry contains an address */ 57 #define IFHWAF_FACTORY 0x02 /* factory (device-given) address */ 58 59 /* Interface structure. */ 60 struct ifdev { 61 TAILQ_ENTRY(ifdev) ifdev_next; /* list of active interfaces */ 62 char ifdev_name[IFNAMSIZ]; /* interface name, null terminated */ 63 unsigned int ifdev_ifflags; /* NetBSD-style interface flags */ 64 unsigned int ifdev_dlt; /* data link type (DLT_) */ 65 unsigned int ifdev_promisc; /* number of promiscuity requestors */ 66 struct netif ifdev_netif; /* lwIP interface structure */ 67 struct if_data ifdev_data; /* NetBSD-style interface data */ 68 char ifdev_v4set; /* interface has an IPv4 address? */ 69 uint8_t ifdev_v6prefix[LWIP_IPV6_NUM_ADDRESSES]; /* IPv6 prefixes */ 70 uint8_t ifdev_v6flags[LWIP_IPV6_NUM_ADDRESSES]; /* v6 address flags */ 71 uint8_t ifdev_v6state[LWIP_IPV6_NUM_ADDRESSES]; /* v6 shadow states */ 72 uint8_t ifdev_v6scope[LWIP_IPV6_NUM_ADDRESSES]; /* cached v6 scopes */ 73 struct ifdev_hwaddr ifdev_hwlist[IFDEV_NUM_HWADDRS]; /* HW addr's */ 74 uint32_t ifdev_nd6flags; /* ND6-related flags (ND6_IFF_) */ 75 const struct ifdev_ops *ifdev_ops; /* interface operations table */ 76 TAILQ_HEAD(, bpfdev_link) ifdev_bpf; /* list of attached BPF devices */ 77 }; 78 79 #define ifdev_get_name(ifdev) ((ifdev)->ifdev_name) 80 #define ifdev_get_ifflags(ifdev) ((ifdev)->ifdev_ifflags) 81 #define ifdev_get_dlt(ifdev) ((ifdev)->ifdev_dlt) 82 #define ifdev_is_promisc(ifdev) ((ifdev)->ifdev_promisc != 0) 83 #define ifdev_get_netif(ifdev) (&(ifdev)->ifdev_netif) 84 #define ifdev_get_nd6flags(ifdev) ((ifdev)->ifdev_nd6flags) 85 #define ifdev_get_iftype(ifdev) ((ifdev)->ifdev_data.ifi_type) 86 #define ifdev_get_hwlen(ifdev) ((ifdev)->ifdev_data.ifi_addrlen) 87 #define ifdev_get_hdrlen(ifdev) ((ifdev)->ifdev_data.ifi_hdrlen) 88 #define ifdev_get_link(ifdev) ((ifdev)->ifdev_data.ifi_link_state) 89 #define ifdev_get_mtu(ifdev) ((ifdev)->ifdev_data.ifi_mtu) 90 #define ifdev_get_metric(ifdev) ((ifdev)->ifdev_data.ifi_metric) 91 #define ifdev_get_ifdata(ifdev) (&(ifdev)->ifdev_data) 92 #define ifdev_is_loopback(ifdev) ((ifdev)->ifdev_ifflags & IFF_LOOPBACK) 93 #define ifdev_is_up(ifdev) ((ifdev)->ifdev_ifflags & IFF_UP) 94 #define ifdev_is_link_up(ifdev) (netif_is_link_up(&(ifdev)->ifdev_netif)) 95 #define ifdev_set_metric(ifdev, metric) \ 96 ((void)((ifdev)->ifdev_data.ifi_metric = (metric))) 97 #define ifdev_get_index(ifdev) \ 98 ((uint32_t)(netif_get_index(ifdev_get_netif(ifdev)))) 99 100 #define ifdev_output_drop(ifdev) ((ifdev)->ifdev_data.ifi_oerrors++) 101 102 #define netif_get_ifdev(netif) ((struct ifdev *)(netif)->state) 103 104 void ifdev_init(void); 105 void ifdev_poll(void); 106 107 void ifdev_register(const char * name, int (* create)(const char *)); 108 109 void ifdev_input(struct ifdev * ifdev, struct pbuf * pbuf, 110 struct netif * netif, int to_bpf); 111 err_t ifdev_output(struct ifdev * ifdev, struct pbuf * pbuf, 112 struct netif * netif, int to_bpf, int hdrcmplt); 113 114 void ifdev_attach_bpf(struct ifdev * ifdev, struct bpfdev_link * bpfl); 115 void ifdev_detach_bpf(struct ifdev * ifdev, struct bpfdev_link * bpfl); 116 117 struct ifdev *ifdev_get_by_index(uint32_t ifindex); 118 struct ifdev *ifdev_find_by_name(const char * name); 119 struct ifdev *ifdev_enum(struct ifdev * last); 120 121 int ifdev_check_name(const char * name, unsigned int * vtype_slot); 122 123 int ifdev_set_promisc(struct ifdev * ifdev); 124 void ifdev_clear_promisc(struct ifdev * ifdev); 125 126 int ifdev_set_ifflags(struct ifdev * ifdev, unsigned int ifflags); 127 void ifdev_update_ifflags(struct ifdev * ifdev, unsigned int ifflags); 128 129 void ifdev_get_ifcap(struct ifdev * ifdev, uint64_t * ifcap, 130 uint64_t * ifena); 131 int ifdev_set_ifcap(struct ifdev * ifdev, uint64_t ifena); 132 133 int ifdev_get_ifmedia(struct ifdev * ifdev, int * ifcurrent, int * ifactive); 134 int ifdev_set_ifmedia(struct ifdev * ifdev, int ifmedia); 135 136 int ifdev_set_mtu(struct ifdev * ifdev, unsigned int mtu); 137 138 int ifdev_set_nd6flags(struct ifdev * ifdev, uint32_t nd6flags); 139 140 void ifdev_add(struct ifdev * ifdev, const char * name, unsigned int ifflags, 141 unsigned int iftype, size_t hdrlen, size_t addrlen, unsigned int dlt, 142 unsigned int mtu, uint32_t nd6flags, const struct ifdev_ops * iop); 143 int ifdev_remove(struct ifdev * ifdev); 144 145 struct ifdev *ifdev_get_loopback(void); 146 147 void ifdev_update_link(struct ifdev * ifdev, int link); 148 void ifdev_update_hwaddr(struct ifdev * ifdev, const uint8_t * hwaddr, 149 int is_factory); 150 151 int ifdev_create(const char * name); 152 int ifdev_destroy(struct ifdev * ifdev); 153 const char *ifdev_enum_vtypes(unsigned int num); 154 155 #endif /* !MINIX_NET_LWIP_IFDEV_H */ 156