9e761f5f28
there doing nothing when it's actually waiting for a DHCP reply.
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
#include <string.h>
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#include <vsprintf.h>
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#include <byteswap.h>
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#include <gpxe/ip.h>
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#include <gpxe/dhcp.h>
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int test_dhcp ( struct net_device *netdev ) {
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struct dhcp_session dhcp;
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struct in_addr address = { htonl ( 0 ) };
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struct in_addr netmask = { htonl ( 0 ) };
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struct in_addr gateway = { INADDR_NONE };
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char filename[256];
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int rc;
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/* Bring IP interface up with address 0.0.0.0 */
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if ( ( rc = add_ipv4_address ( netdev, address, netmask,
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gateway ) ) != 0 )
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goto out_no_del_ipv4;
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/* Issue DHCP request */
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printf ( "DHCP..." );
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memset ( &dhcp, 0, sizeof ( dhcp ) );
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dhcp.netdev = netdev;
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if ( ( rc = async_wait ( start_dhcp ( &dhcp ) ) ) != 0 ) {
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printf ( "failed\n" );
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goto out_no_options;
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}
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printf ( "done\n" );
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/* Register options received via DHCP */
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register_dhcp_options ( dhcp.options );
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/* Retrieve IP address configuration */
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find_global_dhcp_ipv4_option ( DHCP_EB_YIADDR, &address );
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find_global_dhcp_ipv4_option ( DHCP_SUBNET_MASK, &netmask );
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find_global_dhcp_ipv4_option ( DHCP_ROUTERS, &gateway );
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printf ( "IP %s", inet_ntoa ( address ) );
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printf ( " netmask %s", inet_ntoa ( netmask ) );
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printf ( " gateway %s\n", inet_ntoa ( gateway ) );
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dhcp_snprintf ( filename, sizeof ( filename ),
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find_global_dhcp_option ( DHCP_BOOTFILE_NAME ) );
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if ( ! filename[0] ) {
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printf ( "No filename specified!\n" );
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goto out;
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}
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printf ( "Bootfile name %s\n", filename );
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/* Remove old IP address configuration */
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del_ipv4_address ( netdev );
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/* Set up new IP address configuration */
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if ( ( rc = add_ipv4_address ( netdev, address, netmask,
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gateway ) ) != 0 )
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goto out_no_del_ipv4;
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/* Proof of concept: check for "aoe:" prefix and if found, do
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* test AoE boot with AoE options.
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*/
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if ( strncmp ( filename, "aoe:", 4 ) == 0 ) {
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unsigned int drivenum;
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drivenum = find_global_dhcp_num_option ( DHCP_EB_BIOS_DRIVE );
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test_aoeboot ( netdev, &filename[4], drivenum );
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} else {
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printf ( "Don't know how to boot %s\n", filename );
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}
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out:
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/* Unregister and free DHCP options */
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unregister_dhcp_options ( dhcp.options );
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free_dhcp_options ( dhcp.options );
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out_no_options:
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/* Take down IP interface */
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del_ipv4_address ( netdev );
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out_no_del_ipv4:
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return rc;
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}
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