/*-----------------------------------------------------------------------------------*/
static void
low_level_init(struct netif *netif)
{
struct tunif *tunif;
char buf[sizeof(IFCONFIG_CALL) + 50];
tunif = (struct tunif *)netif->state;
/* Obtain MAC address from network interface. */
/* Do whatever else is needed to initialize interface. */
tunif->fd = open("/dev/tun0", O_RDWR);
LWIP_DEBUGF(TUNIF_DEBUG, ("tunif_init: fd %d\n", tunif->fd));
if (tunif->fd == -1) {
perror("tunif_init");
exit(1);
}
sprintf(buf, IFCONFIG_CALL,
ip4_addr1(&(netif->gw)),
ip4_addr2(&(netif->gw)),
ip4_addr3(&(netif->gw)),
ip4_addr4(&(netif->gw)),
ip4_addr1(&(netif->ip_addr)),
ip4_addr2(&(netif->ip_addr)),
ip4_addr3(&(netif->ip_addr)),
ip4_addr4(&(netif->ip_addr)));
LWIP_DEBUGF(TUNIF_DEBUG, ("tunif_init: system(\"%s\");\n", buf));
system(buf);
sys_thread_new("tunif_thread", tunif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
}
int ethGetNetConfig(u8 *ip_address, u8 *netmask, u8 *gateway) {
t_ip_info ip_info;
int result;
if((result = ps2ip_getconfig("sm0", &ip_info)) >= 0) {
ip_address[0] = ip4_addr1((struct ip_addr*)&ip_info.ipaddr);
ip_address[1] = ip4_addr2((struct ip_addr*)&ip_info.ipaddr);
ip_address[2] = ip4_addr3((struct ip_addr*)&ip_info.ipaddr);
ip_address[3] = ip4_addr4((struct ip_addr*)&ip_info.ipaddr);
netmask[0] = ip4_addr1((struct ip_addr*)&ip_info.netmask);
netmask[1] = ip4_addr2((struct ip_addr*)&ip_info.netmask);
netmask[2] = ip4_addr3((struct ip_addr*)&ip_info.netmask);
netmask[3] = ip4_addr4((struct ip_addr*)&ip_info.netmask);
gateway[0] = ip4_addr1((struct ip_addr*)&ip_info.gw);
gateway[1] = ip4_addr2((struct ip_addr*)&ip_info.gw);
gateway[2] = ip4_addr3((struct ip_addr*)&ip_info.gw);
gateway[3] = ip4_addr4((struct ip_addr*)&ip_info.gw);
}else{
memset(ip_address, 0, 4);
memset(netmask, 0, 4);
memset(gateway, 0, 4);
}
return result;
}
/*-----------------------------------------------------------------------------------*/
static void
low_level_init(struct netif *netif)
{
struct tunif *tunif;
char buf[100];
tunif = netif->state;
/* Obtain MAC address from network interface. */
/* Do whatever else is needed to initialize interface. */
tunif->fd = open("/dev/tun0", O_RDWR);
DEBUGF(TUNIF_DEBUG, ("tunif_init: fd %d\n", tunif->fd));
if(tunif->fd == -1) {
perror("tunif_init");
exit(1);
}
snprintf(buf, sizeof(buf), "ifconfig tun0 inet %d.%d.%d.%d %d.%d.%d.%d",
ip4_addr1(&(netif->gw)),
ip4_addr2(&(netif->gw)),
ip4_addr3(&(netif->gw)),
ip4_addr4(&(netif->gw)),
ip4_addr1(&(netif->ip_addr)),
ip4_addr2(&(netif->ip_addr)),
ip4_addr3(&(netif->ip_addr)),
ip4_addr4(&(netif->ip_addr)));
DEBUGF(TUNIF_DEBUG, ("tunif_init: system(\"%s\");\n", buf));
system(buf);
sys_thread_new(tunif_thread, netif);
}
static void
show_netif_config(struct netif *netif)
{
diag_printf(
"%c%c%d: IP: %d.%d.%d.%d Submask: %d.%d.%d.%d Gateway: %d.%d.%d.%d\n",
netif->name[0], netif->name[1], netif->num,
ip4_addr1(&netif->ip_addr), ip4_addr2(&netif->ip_addr),
ip4_addr3(&netif->ip_addr), ip4_addr4(&netif->ip_addr),
ip4_addr1(&netif->netmask), ip4_addr2(&netif->netmask),
ip4_addr3(&netif->netmask), ip4_addr4(&netif->netmask),
ip4_addr1(&netif->gw), ip4_addr2(&netif->gw),
ip4_addr3(&netif->gw), ip4_addr4(&netif->gw)
);
}
/******************************************************************************
* Name: print_ip
* Description: Prints network address information to standard output
*
* Arguments: char *msg - the message to print
* struct ip_addr *ip - the IP address to print
******************************************************************************/
void print_ip( char *msg, struct ip_addr *ip ) {
xil_printf( msg );
xil_printf( "%d.%d.%d.%d\n\r", ip4_addr1(ip), ip4_addr2(ip),
ip4_addr3(ip), ip4_addr4(ip) );
} /* print_ip */
/*
* get_ip_addr()
*
* This routine is called by InterNiche to obtain an IP address for the
* specified network adapter. Like the MAC address, obtaining an IP address is
* very system-dependant and therefore this function is exported for the
* developer to control.
*
* In our system, we are either attempting DHCP auto-negotiation of IP address,
* or we are setting our own static IP, Gateway, and Subnet Mask addresses our
* self. This routine is where that happens.
*/
int get_ip_addr(alt_iniche_dev *p_dev,
ip_addr* ipaddr,
ip_addr* netmask,
ip_addr* gw,
int* use_dhcp)
{
IP4_ADDR(*ipaddr, IPADDR0, IPADDR1, IPADDR2, IPADDR3);
IP4_ADDR(*gw, GWADDR0, GWADDR1, GWADDR2, GWADDR3);
IP4_ADDR(*netmask, MSKADDR0, MSKADDR1, MSKADDR2, MSKADDR3);
#ifdef DHCP_CLIENT
*use_dhcp = 1;
#else /* not DHCP_CLIENT */
*use_dhcp = 0;
printf("Static IP Address is %d.%d.%d.%d\n",
ip4_addr1(*ipaddr),
ip4_addr2(*ipaddr),
ip4_addr3(*ipaddr),
ip4_addr4(*ipaddr));
#endif /* not DHCP_CLIENT */
/* Non-standard API: return 1 for success */
return 1;
}
static void sys_net_status_changed(u8 status)
{
#if TLS_CONFIG_TLS_DEBUG
struct tls_ethif * ethif;
#endif
switch(status)
{
case NETIF_WIFI_JOIN_SUCCESS:
TLS_DBGPRT_INFO("join net success\n");
tls_sys_net_up();
break;
case NETIF_WIFI_JOIN_FAILED:
TLS_DBGPRT_INFO("join net failed\n");
tls_sys_connect_failed();
break;
case NETIF_WIFI_DISCONNECTED:
TLS_DBGPRT_INFO("net disconnected\n");
tls_sys_net_down();
break;
case NETIF_IP_NET_UP:
#if TLS_CONFIG_TLS_DEBUG
ethif = tls_netif_get_ethif();
TLS_DBGPRT_INFO("net up ==> ip = %d.%d.%d.%d\n",ip4_addr1(ðif->ip_addr.addr),ip4_addr2(ðif->ip_addr.addr),
ip4_addr3(ðif->ip_addr.addr),ip4_addr4(ðif->ip_addr.addr));
#endif
break;
default:
break;
}
}
void create_raw_socket_server_demo(void)
{
struct tls_ethif * ethif;
ethif = tls_netif_get_ethif();
printf("\nip=%d.%d.%d.%d\n",ip4_addr1(ðif->ip_addr.addr),ip4_addr2(ðif->ip_addr.addr),
ip4_addr3(ðif->ip_addr.addr),ip4_addr4(ðif->ip_addr.addr));
DemoRawSockOneshotSendMac();
memset(&socket_desc, 0, sizeof(struct tls_socket_desc));
socket_desc.recvf = raw_sk_server_recv;
socket_desc.errf = raw_sk_server_err;
socket_desc.pollf = raw_sk_server_poll;
socket_desc.cs_mode = SOCKET_CS_MODE_SERVER;
socket_desc.acceptf = raw_sk_server_accept;
socket_desc.protocol = SOCKET_PROTO_TCP;
socket_desc.port = LocalPort;
printf("\nlisten port=%d\n",socket_desc.port);
if(gDemoSys.socket_ok != true)
{
tls_socket_create(&socket_desc);
}
}
static err_t ethernetif_igmp_mac_filter(struct netif *netif,
ip_addr_t *group, u8_t action)
{
u8 m_addr[6] = {0x01, 0x00, 0x5E};
int ret = ERR_OK;
LWIP_DEBUGF(IGMP_DEBUG, ("IPaddr: %d.%d.%d.%d\n", ip4_addr1(&group->addr),
ip4_addr2(&group->addr),
ip4_addr3(&group->addr),
ip4_addr4(&group->addr)));
//create group mac address:
memcpy(m_addr+3, (u8*)&(group->addr)+1, 3);
m_addr[3] &= 0x7F; //clear bit24
LWIP_DEBUGF(IGMP_DEBUG, ("MACaddr: %x:%x:%x:%x:%x:%x\n",m_addr[0],
m_addr[1],
m_addr[2],
m_addr[3],
m_addr[4],
m_addr[5]));
if(action == IGMP_ADD_MAC_FILTER)
{
ret = tls_hw_set_multicast_key(m_addr);
}
else if(action == IGMP_DEL_MAC_FILTER)
{
ret = tls_hw_del_multicast_key(m_addr);
}
if (ret < 0)
return ret;
else
return ERR_OK;
}
void
prvvMBPortReleaseClient( struct tcp_pcb *pxPCB )
{
if( pxPCB != NULL )
{
if( tcp_close( pxPCB ) != ERR_OK )
{
tcp_abort( pxPCB );
}
if( pxPCB == pxPCBClient )
{
#ifdef MB_TCP_DEBUG
vMBPortLog( MB_LOG_DEBUG, "MBTCP-CLOSE", "Closed connection to %d.%d.%d.%d.\r\n",
ip4_addr1( &( pxPCB->remote_ip ) ),
ip4_addr2( &( pxPCB->remote_ip ) ),
ip4_addr3( &( pxPCB->remote_ip ) ), ip4_addr4( &( pxPCB->remote_ip ) ) );
#endif
pxPCBClient = NULL;
}
if( pxPCB == pxPCBListen )
{
pxPCBListen = NULL;
}
}
}
void create_raw_socket_client_demo(void)
{
int idx;
struct tls_ethif * ethif;
ethif = tls_netif_get_ethif();
printf("\nip=%d.%d.%d.%d\n",ip4_addr1(ðif->ip_addr.addr),ip4_addr2(ðif->ip_addr.addr),
ip4_addr3(ðif->ip_addr.addr),ip4_addr4(ðif->ip_addr.addr));
DemoRawSockOneshotSendMac();
memset(&raw_socket_c_desc, 0, sizeof(struct tls_socket_desc));
raw_socket_c_desc.recvf = raw_sk_client_recv;
raw_socket_c_desc.errf = raw_sk_client_err;
raw_socket_c_desc.pollf = raw_sk_client_poll;
raw_socket_c_desc.cs_mode = SOCKET_CS_MODE_CLIENT;
raw_socket_c_desc.connf = raw_sk_client_connected;
raw_socket_c_desc.protocol = SOCKET_PROTO_TCP;
for(idx = 0; idx < 4; idx++){
raw_socket_c_desc.ip_addr[idx] = RemoteIp[idx];
}
raw_socket_c_desc.port = RemotePort;
printf("\nserver ip=%d.%d.%d.%d,port=%d\n",RemoteIp[0],RemoteIp[1],RemoteIp[2],RemoteIp[3],raw_socket_c_desc.port);
if(gDemoSys.socket_ok != true)
{
tls_socket_create(&raw_socket_c_desc);
}
}
static void low_level_init (struct netif *netif)
{
struct genericif *genericif;
char buf[100];
genericif = netif->state;
/* Do whatever else is needed to initialize interface. */
netif->fd = genericif->fd = open (genericif->device_name, 0, 0);
if (genericif->fd < 0)
die ("can't open %s", genericif->device_name);
ioctl (genericif->fd, ETHGETHWADDR, genericif->ethaddr->addr);
printf ("HW Addr: %02x:%02x:%02x:%02x:%02x:%02x\n",
genericif->ethaddr->addr[0], genericif->ethaddr->addr[1],
genericif->ethaddr->addr[2], genericif->ethaddr->addr[3],
genericif->ethaddr->addr[4], genericif->ethaddr->addr[5]);
snprintf (buf, sizeof (buf), "ifconfig tap0 inet %d.%d.%d.%d",
ip4_addr1 (&(netif->gw)),
ip4_addr2 (&(netif->gw)), ip4_addr3 (&(netif->gw)), ip4_addr4 (&(netif->gw)));
DEBUGF (TAPIF_DEBUG, ("paulosif_init: system(\"%s\");\n", buf));
callmelater_register ((void (*)(void *)) paulosif_input, (void *) netif, 1);
}
void idc_get_ip(void)
{
if (is_owner) {
assert(!"owner of lwip should never ask for ip through API\n");
abort();
}
LWIPBF_DEBUG("On the way of getting IP\n");
errval_t err;
struct ip_addr ip, gw, nm;
err = net_ports_rpc.vtbl.get_ip_info(&net_ports_rpc, &ip.addr, &gw.addr,
&nm.addr);
if (err_is_fail(err)) {
USER_PANIC_ERR(err, "error sending get_ip_info");
}
LWIPBF_DEBUG("got answer, now setting up things\n");
netif_add(&netif, &ip, &nm, &gw, NULL, bfeth_init, ethernet_input);
netif_set_default(&netif);
netif_set_up(&netif);
LWIPBF_DEBUG("client: owner has the IP address %d.%d.%d.%d\n",
ip4_addr1(&netif.ip_addr), ip4_addr2(&netif.ip_addr),
ip4_addr3(&netif.ip_addr), ip4_addr4(&netif.ip_addr));
}
static void netif_status_callback(struct netif *netif)
{
ip_addr_t addr;
if(netif_is_up(netif) && (netif->dhcp))
{
addr = netif->ip_addr;
printf("DHCP IP:%d.%d.%d.%d\r\n", ip4_addr1(&addr), ip4_addr2(&addr),ip4_addr3(&addr),ip4_addr4(&addr));
addr = netif->gw;
printf("DHCP GW:%d.%d.%d.%d\r\n", ip4_addr1(&addr), ip4_addr2(&addr),ip4_addr3(&addr),ip4_addr4(&addr));
addr = netif->netmask;
printf("DHCP MASK:%d.%d.%d.%d\r\n", ip4_addr1(&addr), ip4_addr2(&addr),ip4_addr3(&addr),ip4_addr4(&addr));
}
}
void
print_ip(char *msg, struct ip_addr *ip)
{
print(msg);
xil_printf("%d.%d.%d.%d\r\n", ip4_addr1(ip), ip4_addr2(ip),
ip4_addr3(ip), ip4_addr4(ip));
}
/*********************************************************************************************************
** 函数名称: __netIfShowAll
** 功能描述: 显示所有网络接口信息 (ip v4)
** 输 入 : NONE
** 输 出 : NONE
** 全局变量:
** 调用模块:
*********************************************************************************************************/
static VOID __netIfShowAll (VOID)
{
struct netif *netif = netif_list;
INT iCounter = 0;
INT i;
CHAR cName[5] = "null"; /* 当前默认路由网络接口名 */
for (; netif != LW_NULL; netif = netif->next) {
__netIfShow(LW_NULL, netif);
iCounter++;
}
#if LWIP_DNS > 0
for (i = 0; i < DNS_MAX_SERVERS; i++) {
ip_addr_t ipaddr = dns_getserver((u8_t)i);
printf("dns%d: %d.%d.%d.%d\n", (i),
ip4_addr1(&ipaddr),
ip4_addr2(&ipaddr),
ip4_addr3(&ipaddr),
ip4_addr4(&ipaddr));
}
#endif /* LWIP_DNS */
if (netif_default) {
cName[0] = netif_default->name[0];
cName[1] = netif_default->name[1];
cName[2] = (CHAR)(netif_default->num + '0');
cName[3] = PX_EOS;
}
printf("default device is: %s\n", cName); /* 显示路由端口 */
printf("total net interface: %d\n", iCounter);
}
/**
* Sends an generic or enterprise specific trap message.
*
* @param generic_trap is the trap code
* @param eoid points to enterprise object identifier
* @param specific_trap used for enterprise traps when generic_trap == 6
* @return ERR_OK when success, ERR_MEM if we're out of memory
*
* @note the caller is responsible for filling in outvb in the trap_msg
* @note the use of the enterpise identifier field
* is per RFC1215.
* Use .iso.org.dod.internet.mgmt.mib-2.snmp for generic traps
* and .iso.org.dod.internet.private.enterprises.yourenterprise
* (sysObjectID) for specific traps.
*/
err_t
snmp_send_trap(s8_t generic_trap, struct snmp_obj_id *eoid, s32_t specific_trap)
{
struct snmp_trap_dst *td;
struct netif *dst_if;
ip_addr_t dst_ip;
struct pbuf *p;
u16_t i,tot_len;
for (i=0, td = &trap_dst[0]; i<SNMP_TRAP_DESTINATIONS; i++, td++) {
if ((td->enable != 0) && !ip_addr_isany(&td->dip)) {
/* network order trap destination */
ip_addr_copy(trap_msg.dip, td->dip);
/* lookup current source address for this dst */
dst_if = ip_route(&td->dip);
ip_addr_copy(dst_ip, dst_if->ip_addr);
/* @todo: what about IPv6? */
trap_msg.sip_raw[0] = ip4_addr1(&dst_ip);
trap_msg.sip_raw[1] = ip4_addr2(&dst_ip);
trap_msg.sip_raw[2] = ip4_addr3(&dst_ip);
trap_msg.sip_raw[3] = ip4_addr4(&dst_ip);
trap_msg.gen_trap = generic_trap;
trap_msg.spc_trap = specific_trap;
if (generic_trap == SNMP_GENTRAP_ENTERPRISESPC) {
/* enterprise-Specific trap */
trap_msg.enterprise = eoid;
} else {
/* generic (MIB-II) trap */
snmp_get_snmpgrpid_ptr(&trap_msg.enterprise);
}
snmp_get_sysuptime(&trap_msg.ts);
/* pass 0, calculate length fields */
tot_len = snmp_varbind_list_sum(&trap_msg.outvb);
tot_len = snmp_trap_header_sum(&trap_msg, tot_len);
/* allocate pbuf(s) */
p = pbuf_alloc(PBUF_TRANSPORT, tot_len, PBUF_POOL);
if (p != NULL) {
u16_t ofs;
/* pass 1, encode packet ino the pbuf(s) */
ofs = snmp_trap_header_enc(&trap_msg, p);
snmp_varbind_list_enc(&trap_msg.outvb, p, ofs);
snmp_inc_snmpouttraps();
snmp_inc_snmpoutpkts();
/** send to the TRAP destination */
udp_sendto(trap_msg.pcb, p, &trap_msg.dip, SNMP_TRAP_PORT);
pbuf_free(p);
} else {
return ERR_MEM;
}
}
}
return ERR_OK;
}
void
netif_set_ipaddr(struct netif *netif, struct ip_addr *ipaddr)
{
/* TODO: Handling of obsolete pcbs */
/* See: http://mail.gnu.org/archive/html/lwip-users/2003-03/msg00118.html */
#if LWIP_TCP
struct tcp_pcb *pcb;
struct tcp_pcb_listen *lpcb;
/* address is actually being changed? */
if ((ip_addr_cmp(ipaddr, &(netif->ip_addr))) == 0)
{
/* extern struct tcp_pcb *tcp_active_pcbs; defined by tcp.h */
LWIP_DEBUGF(NETIF_DEBUG | 1, ("netif_set_ipaddr: netif address being changed\n"));
pcb = tcp_active_pcbs;
while (pcb != NULL) {
/* PCB bound to current local interface address? */
if (ip_addr_cmp(&(pcb->local_ip), &(netif->ip_addr))) {
/* this connection must be aborted */
struct tcp_pcb *next = pcb->next;
LWIP_DEBUGF(NETIF_DEBUG | 1, ("netif_set_ipaddr: aborting TCP pcb %p\n", (void *)pcb));
tcp_abort(pcb);
pcb = next;
} else {
pcb = pcb->next;
}
}
for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) {
/* PCB bound to current local interface address? */
if (ip_addr_cmp(&(lpcb->local_ip), &(netif->ip_addr))) {
/* The PCB is listening to the old ipaddr and
* is set to listen to the new one instead */
ip_addr_set(&(lpcb->local_ip), ipaddr);
}
}
}
#endif
snmp_delete_ipaddridx_tree(netif);
snmp_delete_iprteidx_tree(0,netif);
/* set new IP address to netif */
ip_addr_set(&(netif->ip_addr), ipaddr);
snmp_insert_ipaddridx_tree(netif);
snmp_insert_iprteidx_tree(0,netif);
#if 0 /* only allowed for Ethernet interfaces TODO: how can we check? */
/** For Ethernet network interfaces, we would like to send a
* "gratuitous ARP"; this is an ARP packet sent by a node in order
* to spontaneously cause other nodes to update an entry in their
* ARP cache. From RFC 3220 "IP Mobility Support for IPv4" section 4.6.
*/
etharp_query(netif, ipaddr, NULL);
#endif
LWIP_DEBUGF(NETIF_DEBUG | DBG_TRACE | DBG_STATE | 3, ("netif: IP address of interface %c%c set to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n",
netif->name[0], netif->name[1],
ip4_addr1(&netif->ip_addr),
ip4_addr2(&netif->ip_addr),
ip4_addr3(&netif->ip_addr),
ip4_addr4(&netif->ip_addr)));
}
int netstack_get_ipmask(u8 *addr)
{
addr[0] = ip4_addr1(&lns.nif.netmask);
addr[1] = ip4_addr2(&lns.nif.netmask);
addr[2] = ip4_addr3(&lns.nif.netmask);
addr[3] = ip4_addr4(&lns.nif.netmask);
return VMM_OK;
}
int netstack_get_ipaddr(u8 *addr)
{
addr[0] = ip4_addr1(&lns.nif.ip_addr);
addr[1] = ip4_addr2(&lns.nif.ip_addr);
addr[2] = ip4_addr3(&lns.nif.ip_addr);
addr[3] = ip4_addr4(&lns.nif.ip_addr);
return VMM_OK;
}
/**
* Conversion from lwIP ip_addr to oid
* @param ip points to input struct
* @param ident points to s32_t ident[4] output
*/
void
snmp_iptooid(ip_addr_t *ip, s32_t *ident)
{
ident[0] = ip4_addr1(ip);
ident[1] = ip4_addr2(ip);
ident[2] = ip4_addr3(ip);
ident[3] = ip4_addr4(ip);
}
/**
* @brief Initializes the lwIP stack
* @param None
* @retval None
*/
void Netif_Config(void)
{
ip_addr_t ipaddr;
ip_addr_t netmask;
ip_addr_t gw;
#if LWIP_DHCP
ipaddr.addr = 0;
netmask.addr = 0;
gw.addr = 0;
#else
IP4_ADDR(&ipaddr, IP_ADDR0, IP_ADDR1, IP_ADDR2, IP_ADDR3);
IP4_ADDR(&netmask, NETMASK_ADDR0, NETMASK_ADDR1 , NETMASK_ADDR2, NETMASK_ADDR3);
IP4_ADDR(&gw, GW_ADDR0, GW_ADDR1, GW_ADDR2, GW_ADDR3);
printf("STATIC IP:%d.%d.%d.%d\r\n",ip4_addr1(&ipaddr), ip4_addr2(&ipaddr),ip4_addr3(&ipaddr),ip4_addr4(&ipaddr));
printf("STATIC GW:%d.%d.%d.%d\r\n",ip4_addr1(&gw), ip4_addr2(&gw),ip4_addr3(&gw),ip4_addr4(&gw));
printf("STATIC MASK:%d.%d.%d.%d\r\n",ip4_addr1(&netmask), ip4_addr2(&netmask),ip4_addr3(&netmask),ip4_addr4(&netmask));
#endif
/* - netif_add(struct netif *netif, struct ip_addr *ipaddr,
struct ip_addr *netmask, struct ip_addr *gw,
void *state, err_t (* init)(struct netif *netif),
err_t (* input)(struct pbuf *p, struct netif *netif))
Adds your network interface to the netif_list. Allocate a struct
netif and pass a pointer to this structure as the first argument.
Give pointers to cleared ip_addr structures when using DHCP,
or fill them with sane numbers otherwise. The state pointer may be NULL.
The init function pointer must point to a initialization function for
your ethernet netif interface. The following code illustrates it's use.*/
netif_add(&wireless_netif, &ipaddr, &netmask, &gw, NULL, &wlan_ethernetif_init, &tcpip_input);
/* Registers the default network interface.*/
netifapi_netif_common(&wireless_netif, netif_set_default, NULL);
#if LWIP_DHCP
netif_set_status_callback(&wireless_netif, netif_status_callback);
#else
netifapi_netif_common(&wireless_netif, netif_set_up, NULL);
#endif
}
/**
* Convert ip4_addr to InetAddressIPv4 (no InetAddressType)
* @param ip points to input struct
* @param oid points to u32_t ident[4] output
*/
void
snmp_ip4_to_oid(const ip4_addr_t *ip, u32_t *oid)
{
oid[0] = ip4_addr1(ip);
oid[1] = ip4_addr2(ip);
oid[2] = ip4_addr3(ip);
oid[3] = ip4_addr4(ip);
}
/* Copy IP address as dotted decimal to 'dest', must be at least 16 bytes long */
inline static void sprintf_ipaddr(const ip_addr_t *addr, char *dest)
{
if(addr == NULL)
sprintf(dest, "NULL");
else
sprintf(dest, "%d.%d.%d.%d", ip4_addr1(addr),
ip4_addr2(addr), ip4_addr3(addr), ip4_addr4(addr));
}
int netstack_get_gatewayip(u8 *addr)
{
addr[0] = ip4_addr1(&lns.nif.gw);
addr[1] = ip4_addr2(&lns.nif.gw);
addr[2] = ip4_addr3(&lns.nif.gw);
addr[3] = ip4_addr4(&lns.nif.gw);
return VMM_OK;
}
/**
* Update (or insert) a IP/MAC address pair in the ARP cache.
*
* If a pending entry is resolved, any queued packets will be sent
* at this point.
*
* @param ipaddr IP address of the inserted ARP entry.
* @param ethaddr Ethernet address of the inserted ARP entry.
* @param flags Defines behaviour:
* - ETHARP_TRY_HARD Allows ARP to insert this as a new item. If not specified,
* only existing ARP entries will be updated.
*
* @return
* - ERR_OK Succesfully updated ARP cache.
* - ERR_MEM If we could not add a new ARP entry when ETHARP_TRY_HARD was set.
* - ERR_ARG Non-unicast address given, those will not appear in ARP cache.
*
* @see pbuf_free()
*/
static err_t
update_arp_entry(struct netif *netif, struct ip_addr *ipaddr, struct eth_addr *ethaddr, u8_t flags)
{
s8_t i, k;
LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE | 3, ("update_arp_entry()\n"));
LWIP_ASSERT("netif->hwaddr_len != 0", netif->hwaddr_len != 0);
LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("update_arp_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F"\n",
ip4_addr1(ipaddr), ip4_addr2(ipaddr), ip4_addr3(ipaddr), ip4_addr4(ipaddr),
ethaddr->addr[0], ethaddr->addr[1], ethaddr->addr[2],
ethaddr->addr[3], ethaddr->addr[4], ethaddr->addr[5]));
/* non-unicast address? */
if (ip_addr_isany(ipaddr) ||
ip_addr_isbroadcast(ipaddr, netif) ||
ip_addr_ismulticast(ipaddr)) {
LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("update_arp_entry: will not add non-unicast IP address to ARP cache\n"));
return ERR_ARG;
}
/* find or create ARP entry */
i = find_entry(ipaddr, flags);
/* bail out if no entry could be found */
if (i < 0) return (err_t)i;
/* mark it stable */
arp_table[i].state = ETHARP_STATE_STABLE;
LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("update_arp_entry: updating stable entry %"S16_F"\n", (s16_t)i));
/* update address */
for (k = 0; k < netif->hwaddr_len; ++k) {
arp_table[i].ethaddr.addr[k] = ethaddr->addr[k];
}
/* reset time stamp */
arp_table[i].ctime = 0;
/* this is where we will send out queued packets! */
#if ARP_QUEUEING
while (arp_table[i].p != NULL) {
/* get the first packet on the queue */
struct pbuf *p = arp_table[i].p;
/* Ethernet header */
struct eth_hdr *ethhdr = p->payload;
/* remember (and reference) remainder of queue */
/* note: this will also terminate the p pbuf chain */
arp_table[i].p = pbuf_dequeue(p);
/* fill-in Ethernet header */
for (k = 0; k < netif->hwaddr_len; ++k) {
ethhdr->dest.addr[k] = ethaddr->addr[k];
ethhdr->src.addr[k] = netif->hwaddr[k];
}
ethhdr->type = htons(ETHTYPE_IP);
LWIP_DEBUGF(ETHARP_DEBUG | DBG_TRACE, ("update_arp_entry: sending queued IP packet %p.\n", (void *)p));
/* send the queued IP packet */
netif->linkoutput(netif, p);
/* free the queued IP packet */
pbuf_free(p);
}
#endif
return ERR_OK;
}
void
netif_set_netmask(struct netif *netif, struct ip_addr *netmask)
{
ip_addr_set(&(netif->netmask), netmask);
LWIP_DEBUGF(NETIF_DEBUG | DBG_TRACE | DBG_STATE | 3, ("netif: netmask of interface %c%c set to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n",
netif->name[0], netif->name[1],
ip4_addr1(&netif->netmask),
ip4_addr2(&netif->netmask),
ip4_addr3(&netif->netmask),
ip4_addr4(&netif->netmask)));
}
void
netif_set_gw(struct netif *netif, struct ip_addr *gw)
{
ip_addr_set(&(netif->gw), gw);
LWIP_DEBUGF(NETIF_DEBUG | DBG_TRACE | DBG_STATE | 3, ("netif: GW address of interface %c%c set to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n",
netif->name[0], netif->name[1],
ip4_addr1(&netif->gw),
ip4_addr2(&netif->gw),
ip4_addr3(&netif->gw),
ip4_addr4(&netif->gw)));
}
/*-----------------------------------------------------------------------------------*/
static void
low_level_init(struct netif *netif)
{
struct tapif *tapif;
char buf[sizeof(IFCONFIG_ARGS) + sizeof(IFCONFIG_BIN) + 50];
tapif = (struct tapif *)netif->state;
/* Obtain MAC address from network interface. */
/* (We just fake an address...) */
tapif->ethaddr->addr[0] = 0x1;
tapif->ethaddr->addr[1] = 0x2;
tapif->ethaddr->addr[2] = 0x3;
tapif->ethaddr->addr[3] = 0x4;
tapif->ethaddr->addr[4] = 0x5;
tapif->ethaddr->addr[5] = 0x6;
/* Do whatever else is needed to initialize interface. */
tapif->fd = open(DEVTAP, O_RDWR);
LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_init: fd %d\n", tapif->fd));
if(tapif->fd == -1) {
#ifdef linux
perror("tapif_init: try running \"modprobe tun\" or rebuilding your kernel with CONFIG_TUN; cannot open "DEVTAP);
#else
perror("tapif_init: cannot open "DEVTAP);
#endif
exit(1);
}
#ifdef linux
{
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP|IFF_NO_PI;
if (ioctl(tapif->fd, TUNSETIFF, (void *) &ifr) < 0) {
perror("tapif_init: "DEVTAP" ioctl TUNSETIFF");
exit(1);
}
}
#endif /* Linux */
sprintf(buf, IFCONFIG_BIN IFCONFIG_ARGS,
ip4_addr1(&(netif->gw)),
ip4_addr2(&(netif->gw)),
ip4_addr3(&(netif->gw)),
ip4_addr4(&(netif->gw)));
LWIP_DEBUGF(TAPIF_DEBUG, ("tapif_init: system(\"%s\");\n", buf));
system(buf);
sys_thread_new("tapif_thread", tapif_thread, netif, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
}
void
ip_debug_print(struct pbuf *p)
{
struct ip_hdr *iphdr = p->payload;
u8_t *payload;
payload = (u8_t *)iphdr + IP_HLEN;
LWIP_DEBUGF(IP_DEBUG, ("IP header:\n"));
LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
LWIP_DEBUGF(IP_DEBUG, ("|%2"S16_F" |%2"S16_F" | 0x%02"X16_F" | %5"U16_F" | (v, hl, tos, len)\n",
IPH_V(iphdr),
IPH_HL(iphdr),
IPH_TOS(iphdr),
ntohs(IPH_LEN(iphdr))));
LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
LWIP_DEBUGF(IP_DEBUG, ("| %5"U16_F" |%"U16_F"%"U16_F"%"U16_F"| %4"U16_F" | (id, flags, offset)\n",
ntohs(IPH_ID(iphdr)),
ntohs(IPH_OFFSET(iphdr)) >> 15 & 1,
ntohs(IPH_OFFSET(iphdr)) >> 14 & 1,
ntohs(IPH_OFFSET(iphdr)) >> 13 & 1,
ntohs(IPH_OFFSET(iphdr)) & IP_OFFMASK));
LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | 0x%04"X16_F" | (ttl, proto, chksum)\n",
IPH_TTL(iphdr),
IPH_PROTO(iphdr),
ntohs(IPH_CHKSUM(iphdr))));
LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | %3"U16_F" | %3"U16_F" | (src)\n",
ip4_addr1(&iphdr->src),
ip4_addr2(&iphdr->src),
ip4_addr3(&iphdr->src),
ip4_addr4(&iphdr->src)));
LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | %3"U16_F" | %3"U16_F" | (dest)\n",
ip4_addr1(&iphdr->dest),
ip4_addr2(&iphdr->dest),
ip4_addr3(&iphdr->dest),
ip4_addr4(&iphdr->dest)));
LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n"));
}