network_support.c

eCos/RedBoot for勤研ARM AnywhereII(4510) 含全部源代码

    for (i = 0;  i < bp->bp_hlen;  i++) {
        bp->bp_chaddr[i] = 0xFF;  // Unknown
    }
    s = socket(AF_INET, SOCK_DGRAM, 0);
    if (s >= 0) {
        strcpy(ifr.ifr_name, if_name);
        if (ioctl(s, SIOCGIFHWADDR, &ifr) >= 0) {
            bcopy(ifr.ifr_hwaddr.sa_data, bp->bp_chaddr, bp->bp_hlen);
        }
        close(s);
    }

    // Fill in the provided IP addresses
    bp->bp_ciaddr.s_addr = inet_addr(addrs_ip);
    bp->bp_yiaddr.s_addr = inet_addr(addrs_ip);
    bp->bp_siaddr.s_addr = inet_addr(addrs_server);
    bp->bp_giaddr.s_addr = inet_addr(addrs_gateway);
    vp = &bp->bp_vend[0];
    bcopy(&cookie, vp, sizeof(cookie));
    vp += sizeof(cookie);
    addr = inet_addr(addrs_netmask);
    vp = add_tag(vp, TAG_SUBNET_MASK, &addr, sizeof(in_addr_t));
    addr = inet_addr(addrs_broadcast);
    vp = add_tag(vp, TAG_IP_BROADCAST, &addr, sizeof(in_addr_t));
    addr = inet_addr(addrs_gateway);
    vp = add_tag(vp, TAG_GATEWAY, &addr, sizeof(in_addr_t));
    *vp = TAG_END;
}


//
// Initialize network interface[s] using BOOTP/DHCP
//
void
init_all_network_interfaces(void)
{
    static volatile int in_init_all_network_interfaces = 0;
#ifdef CYGPKG_IO_PCMCIA
    cyg_netdevtab_entry_t *t;
#endif // CYGPKG_IO_PCMCIA
#ifdef CYGOPT_NET_IPV6_ROUTING_THREAD
    int rs_wait = 40;
#endif

    cyg_scheduler_lock();
    while ( in_init_all_network_interfaces ) {
        // Another thread is doing this...
        cyg_scheduler_unlock();
        cyg_thread_delay( 10 );
        cyg_scheduler_lock();
    }
    in_init_all_network_interfaces = 1;
    cyg_scheduler_unlock();

#ifdef CYGHWR_NET_DRIVER_ETH0
    if ( ! eth0_up ) { // Make this call idempotent
#ifdef CYGPKG_IO_PCMCIA
        if ((t = eth_drv_netdev("eth0")) != (cyg_netdevtab_entry_t *)NULL) {
            int tries = 0;
            while (t->status != CYG_NETDEVTAB_STATUS_AVAIL) {
                if (tries == 0) {
                    diag_printf("... Waiting for PCMCIA device 'eth0'\n");
                } 
                if (++tries == 5) {
                    diag_printf("... Giving up on PCMCIA device 'eth0'\n");
                    goto bail_eth0;
                }
                cyg_thread_delay(100);
            }
        }
#endif // CYGPKG_IO_PCMCIA
#ifdef CYGHWR_NET_DRIVER_ETH0_BOOTP
        // Perform a complete initialization, using BOOTP/DHCP
        eth0_up = true;
#ifdef CYGHWR_NET_DRIVER_ETH0_DHCP
        eth0_dhcpstate = 0; // Says that initialization is external to dhcp
        if (do_dhcp(eth0_name, &eth0_bootp_data, &eth0_dhcpstate, &eth0_lease)) 
#else
#ifdef CYGPKG_NET_DHCP
        eth0_dhcpstate = DHCPSTATE_BOOTP_FALLBACK;
        // so the dhcp machine does no harm if called
#endif
        if (do_bootp(eth0_name, &eth0_bootp_data)) 
#endif
        {
#ifdef CYGHWR_NET_DRIVER_ETH0_BOOTP_SHOW
            show_bootp(eth0_name, &eth0_bootp_data);
#endif
        } else {
            diag_printf("BOOTP/DHCP failed on eth0\n");
            eth0_up = false;
        }
#elif defined(CYGHWR_NET_DRIVER_ETH0_ADDRS_IP)
        eth0_up = true;
        build_bootp_record(&eth0_bootp_data,
                           eth0_name,
                           string(CYGHWR_NET_DRIVER_ETH0_ADDRS_IP),
                           string(CYGHWR_NET_DRIVER_ETH0_ADDRS_NETMASK),
                           string(CYGHWR_NET_DRIVER_ETH0_ADDRS_BROADCAST),
                           string(CYGHWR_NET_DRIVER_ETH0_ADDRS_GATEWAY),
                           string(CYGHWR_NET_DRIVER_ETH0_ADDRS_SERVER));
        show_bootp(eth0_name, &eth0_bootp_data);
#endif
#ifdef CYGPKG_IO_PCMCIA
    bail_eth0:
#endif
    }
#endif // CYGHWR_NET_DRIVER_ETH0
#ifdef CYGHWR_NET_DRIVER_ETH1
    if ( ! eth1_up ) { // Make this call idempotent
#ifdef CYGPKG_IO_PCMCIA
        if ((t = eth_drv_netdev("eth1")) != (cyg_netdevtab_entry_t *)NULL) {
            int tries = 0;
            while (t->status != CYG_NETDEVTAB_STATUS_AVAIL) {
                if (tries == 0) {
                    diag_printf("... Waiting for PCMCIA device 'eth1'\n");
                } 
                if (++tries == 5) {
                    diag_printf("... Giving up on PCMCIA device 'eth1'\n");
                    goto bail_eth1;
                }
                cyg_thread_delay(100);
            }
        }
#endif // CYGPKG_IO_PCMCIA
#ifdef CYGHWR_NET_DRIVER_ETH1_BOOTP
        // Perform a complete initialization, using BOOTP/DHCP
        eth1_up = true;
#ifdef CYGHWR_NET_DRIVER_ETH1_DHCP
        eth1_dhcpstate = 0; // Says that initialization is external to dhcp
        if (do_dhcp(eth1_name, &eth1_bootp_data, &eth1_dhcpstate, &eth1_lease)) 
#else
#ifdef CYGPKG_NET_DHCP
        eth1_dhcpstate = DHCPSTATE_BOOTP_FALLBACK;
        // so the dhcp machine does no harm if called
#endif
        if (do_bootp(eth1_name, &eth1_bootp_data))
#endif
        {
#ifdef CYGHWR_NET_DRIVER_ETH1_BOOTP_SHOW
            show_bootp(eth1_name, &eth1_bootp_data);
#endif
        } else {
            diag_printf("BOOTP/DHCP failed on eth1\n");
            eth1_up = false;
        }
#elif defined(CYGHWR_NET_DRIVER_ETH1_ADDRS_IP)
        eth1_up = true;
        build_bootp_record(&eth1_bootp_data,
                           eth1_name,
                           string(CYGHWR_NET_DRIVER_ETH1_ADDRS_IP),
                           string(CYGHWR_NET_DRIVER_ETH1_ADDRS_NETMASK),
                           string(CYGHWR_NET_DRIVER_ETH1_ADDRS_BROADCAST),
                           string(CYGHWR_NET_DRIVER_ETH1_ADDRS_GATEWAY),
                           string(CYGHWR_NET_DRIVER_ETH1_ADDRS_SERVER));
        show_bootp(eth1_name, &eth1_bootp_data);
#endif
#ifdef CYGPKG_IO_PCMCIA
    bail_eth1:
#endif
    }
#endif // CYGHWR_NET_DRIVER_ETH1
#ifdef CYGHWR_NET_DRIVER_ETH0
#ifndef CYGHWR_NET_DRIVER_ETH0_MANUAL
    if (eth0_up) {
        if (!init_net(eth0_name, &eth0_bootp_data)) {
            diag_printf("Network initialization failed for eth0\n");
            eth0_up = false;
        }
#ifdef CYGHWR_NET_DRIVER_ETH0_IPV6_PREFIX
        if (!init_net_IPv6(eth0_name, &eth0_bootp_data, 
                           string(CYGHWR_NET_DRIVER_ETH0_IPV6_PREFIX))) {
            diag_printf("Static IPv6 network initialization failed for eth0\n");
            eth0_up = false;  // ???
        }
#endif
    }
#endif
#endif
#ifdef CYGHWR_NET_DRIVER_ETH1
#ifndef CYGHWR_NET_DRIVER_ETH1_MANUAL
    if (eth1_up) {
        if (!init_net(eth1_name, &eth1_bootp_data)) {
            diag_printf("Network initialization failed for eth1\n");
            eth1_up = false;
        }
#ifdef CYGHWR_NET_DRIVER_ETH1_IPV6_PREFIX
        if (!init_net_IPv6(eth1_name, &eth1_bootp_data, 
                           string(CYGHWR_NET_DRIVER_ETH1_IPV6_PREFIX))) {
            diag_printf("Static IPv6 network initialization failed for eth1\n");
            eth1_up = false; // ???
        }
#endif
    }
#endif
#endif

#ifdef CYGPKG_NET_NLOOP
#if 0 < CYGPKG_NET_NLOOP
    {
        static int loop_init = 0;
        int i;
        if ( 0 == loop_init++ )
            for ( i = 0; i < CYGPKG_NET_NLOOP; i++ )
                init_loopback_interface( i );
    }
#endif
#endif

#ifdef CYGOPT_NET_DHCP_DHCP_THREAD
    dhcp_start_dhcp_mgt_thread();
#endif

#ifdef CYGOPT_NET_IPV6_ROUTING_THREAD
    ipv6_start_routing_thread();

    // Wait for router solicit process to happen.
    while (rs_wait-- && !cyg_net_get_ipv6_advrouter(NULL)) {
      cyg_thread_delay(10);
    }
    if (rs_wait == 0 ) {
      diag_printf("No router solicit received\n");
    } else {
      // Give Duplicate Address Detection time to work
      cyg_thread_delay(200);
    }
#endif

#ifdef CYGDAT_NS_DNS_DEFAULT_SERVER
      cyg_dns_res_start(string(CYGDAT_NS_DNS_DEFAULT_SERVER));
#endif

#ifdef CYGDAT_NS_DNS_DOMAINNAME_NAME
#define _NAME string(CYGDAT_NS_DNS_DOMAINNAME_NAME)
    {
      const char buf[] = _NAME;
      int len = strlen(_NAME);
      
      setdomainname(buf,len);
    }
#endif
    // Open the monitor to other threads.
    in_init_all_network_interfaces = 0;

}

// EOF network_support.c