struct gdb_transport *gdbudp_configure ( const char *name, struct sockaddr_in *addr ) {
struct settings *settings;
/* Release old network device */
netdev_put ( netdev );
netdev = find_netdev ( name );
if ( !netdev ) {
return NULL;
}
/* Hold network device */
netdev_get ( netdev );
/* Source UDP port */
source_addr.sin_port = ( addr && addr->sin_port ) ? addr->sin_port : htons ( DEFAULT_PORT );
/* Source IP address */
if ( addr && addr->sin_addr.s_addr ) {
source_addr.sin_addr.s_addr = addr->sin_addr.s_addr;
} else {
settings = netdev_settings ( netdev );
fetch_ipv4_setting ( settings, &ip_setting, &source_addr.sin_addr );
if ( source_addr.sin_addr.s_addr == 0 ) {
netdev_put ( netdev );
netdev = NULL;
return NULL;
}
}
return &udp_gdb_transport;
}
/**
* Fill in NIC portion of iBFT
*
* @v nic NIC portion of iBFT
* @v strings iBFT string block descriptor
* @v netdev Network device
* @ret rc Return status code
*/
static int ibft_fill_nic ( struct ibft_nic *nic,
struct ibft_string_block *strings,
struct net_device *netdev ) {
struct ll_protocol *ll_protocol = netdev->ll_protocol;
struct in_addr netmask_addr = { 0 };
unsigned int netmask_count = 0;
int rc;
/* Extract values from DHCP configuration */
ibft_set_ipaddr_option ( &nic->ip_address, &ip_setting );
DBG ( "iBFT NIC IP = %s\n", ibft_ipaddr ( &nic->ip_address ) );
ibft_set_ipaddr_option ( &nic->gateway, &gateway_setting );
DBG ( "iBFT NIC gateway = %s\n", ibft_ipaddr ( &nic->gateway ) );
ibft_set_ipaddr_option ( &nic->dns[0], &dns_setting );
DBG ( "iBFT NIC DNS = %s\n", ibft_ipaddr ( &nic->dns[0] ) );
if ( ( rc = ibft_set_string_option ( strings, &nic->hostname,
&hostname_setting ) ) != 0 )
return rc;
DBG ( "iBFT NIC hostname = %s\n",
ibft_string ( strings, &nic->hostname ) );
/* Derive subnet mask prefix from subnet mask */
fetch_ipv4_setting ( NULL, &netmask_setting, &netmask_addr );
while ( netmask_addr.s_addr ) {
if ( netmask_addr.s_addr & 0x1 )
netmask_count++;
netmask_addr.s_addr >>= 1;
}
nic->subnet_mask_prefix = netmask_count;
DBG ( "iBFT NIC subnet = /%d\n", nic->subnet_mask_prefix );
/* Extract values from net-device configuration */
if ( ( rc = ll_protocol->eth_addr ( netdev->ll_addr,
nic->mac_address ) ) != 0 ) {
DBG ( "Could not determine iBFT MAC: %s\n", strerror ( rc ) );
return rc;
}
DBG ( "iBFT NIC MAC = %s\n", eth_ntoa ( nic->mac_address ) );
nic->pci_bus_dev_func = netdev->dev->desc.location;
DBG ( "iBFT NIC PCI = %04x\n", nic->pci_bus_dev_func );
return 0;
}
/**
* Apply DNS settings
*
* @ret rc Return status code
*/
static int apply_dns_settings ( void ) {
struct sockaddr_in *sin_nameserver =
( struct sockaddr_in * ) &nameserver;
int len;
if ( ( len = fetch_ipv4_setting ( NULL, &dns_setting,
&sin_nameserver->sin_addr ) ) >= 0 ){
sin_nameserver->sin_family = AF_INET;
DBG ( "DNS using nameserver %s\n",
inet_ntoa ( sin_nameserver->sin_addr ) );
}
/* Get local domain DHCP option */
if ( ( len = fetch_string_setting_copy ( NULL, &domain_setting,
&localdomain ) ) >= 0 )
DBG ( "DNS local domain %s\n", localdomain );
return 0;
}
/**
* Apply syslog settings
*
* @ret rc Return status code
*/
static int apply_syslog_settings ( void ) {
struct sockaddr_in *sin_logserver =
( struct sockaddr_in * ) &logserver;
struct in_addr old_addr;
int len;
int rc;
/* Fetch log server */
syslog_console.disabled = 1;
old_addr.s_addr = sin_logserver->sin_addr.s_addr;
if ( ( len = fetch_ipv4_setting ( NULL, &syslog_setting,
&sin_logserver->sin_addr ) ) >= 0 ) {
syslog_console.disabled = 0;
}
/* Do nothing unless log server has changed */
if ( sin_logserver->sin_addr.s_addr == old_addr.s_addr )
return 0;
/* Reset syslog connection */
intf_restart ( &syslogger, 0 );
/* Do nothing unless we have a log server */
if ( syslog_console.disabled ) {
DBG ( "SYSLOG has no log server\n" );
return 0;
}
/* Connect to log server */
if ( ( rc = xfer_open_socket ( &syslogger, SOCK_DGRAM,
( ( struct sockaddr * ) &logserver ),
NULL ) ) != 0 ) {
DBG ( "SYSLOG cannot connect to log server: %s\n",
strerror ( rc ) );
return rc;
}
DBG ( "SYSLOG using log server %s\n",
inet_ntoa ( sin_logserver->sin_addr ) );
return 0;
}
/**
* Fill in an IP address within iBFT from configuration setting
*
* @v ipaddr IP address field
* @v setting Configuration setting
* @v tag DHCP option tag
*/
static void ibft_set_ipaddr_option ( struct ibft_ipaddr *ipaddr,
struct setting *setting ) {
struct in_addr in = { 0 };
fetch_ipv4_setting ( NULL, setting, &in );
ibft_set_ipaddr ( ipaddr, in );
}
