int dhcp ( struct net_device *netdev ) {
uint8_t *chaddr;
uint8_t hlen;
uint16_t flags;
int rc;
/* Check we can open the interface first */
if ( ( rc = ifopen ( netdev ) ) != 0 )
return rc;
/* Wait for link-up */
if ( ( rc = iflinkwait ( netdev, LINK_WAIT_MS ) ) != 0 )
return rc;
/* Perform DHCP */
chaddr = dhcp_chaddr ( netdev, &hlen, &flags );
printf ( "DHCP (%s ", netdev->name );
while ( hlen-- )
printf ( "%02x%c", *(chaddr++), ( hlen ? ':' : ')' ) );
if ( ( rc = start_dhcp ( &monojob, netdev ) ) == 0 ) {
rc = monojob_wait ( "" );
} else if ( rc > 0 ) {
printf ( " using cached\n" );
rc = 0;
}
return rc;
}
/**
* Fetch an image
*
* @v uri_string URI as a string (e.g. "http://www.nowhere.com/vmlinuz")
* @v name Name for image, or NULL
* @v register_image Image registration routine
* @ret rc Return status code
*/
int imgfetch ( struct image *image, const char *uri_string,
int ( * image_register ) ( struct image *image ) ) {
char uri_string_redacted[ strlen ( uri_string ) + 3 /* "***" */
+ 1 /* NUL */ ];
struct uri *uri;
const char *password;
int rc;
if ( ! ( uri = parse_uri ( uri_string ) ) )
return -ENOMEM;
image_set_uri ( image, uri );
/* Redact password portion of URI, if necessary */
password = uri->password;
if ( password )
uri->password = "******";
unparse_uri ( uri_string_redacted, sizeof ( uri_string_redacted ),
uri, URI_ALL );
uri->password = password;
if ( ( rc = create_downloader ( &monojob, image, image_register,
LOCATION_URI, uri ) ) == 0 )
rc = monojob_wait ( uri_string_redacted );
uri_put ( uri );
return rc;
}
int pxebs ( struct net_device *netdev, unsigned int pxe_type ) {
int rc;
/* Perform PXE Boot Server Discovery */
printf ( "PXEBS (%s type %d)", netdev->name, pxe_type );
if ( ( rc = start_pxebs ( &monojob, netdev, pxe_type ) ) == 0 )
rc = monojob_wait ( "" );
return rc;
}
/**
* Get time and date via NTP
*
* @v hostname Hostname
* @ret rc Return status code
*/
int ntp ( const char *hostname ) {
int rc;
/* Start NTP client */
if ( ( rc = start_ntp ( &monojob, hostname ) ) != 0 )
return rc;
/* Wait for NTP to complete */
if ( ( rc = monojob_wait ( NULL, 0 ) ) != 0 )
return rc;
return 0;
}
/**
* Ping a host
*
* @v hostname Hostname
* @v timeout Timeout between pings, in ticks
* @v len Payload length
* @ret rc Return status code
*/
int ping ( const char *hostname, unsigned long timeout, size_t len ) {
int rc;
/* Create pinger */
if ( ( rc = create_pinger ( &monojob, hostname, timeout,
len, ping_callback ) ) != 0 ) {
printf ( "Could not start ping: %s\n", strerror ( rc ) );
return rc;
}
/* Wait for ping to complete */
if ( ( rc = monojob_wait ( NULL, 0 ) ) != 0 ) {
printf ( "Finished: %s\n", strerror ( rc ) );
return rc;
}
return 0;
}
int dhcp ( struct net_device *netdev ) {
int rc;
/* Check we can open the interface first */
if ( ( rc = ifopen ( netdev ) ) != 0 )
return rc;
/* Wait for link-up */
if ( ( rc = iflinkwait ( netdev, LINK_WAIT_MS ) ) != 0 )
return rc;
/* Perform DHCP */
printf ( "DHCP (%s %s)", netdev->name,
netdev->ll_protocol->ntoa ( netdev->ll_addr ) );
if ( ( rc = start_dhcp ( &monojob, netdev ) ) == 0 )
rc = monojob_wait ( "" );
return rc;
}