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Annotation of qemu/roms/ipxe/src/usr/dhcpmgmt.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (C) 2007 Michael Brown <[email protected]>.
                      3:  *
                      4:  * This program is free software; you can redistribute it and/or
                      5:  * modify it under the terms of the GNU General Public License as
                      6:  * published by the Free Software Foundation; either version 2 of the
                      7:  * License, or any later version.
                      8:  *
                      9:  * This program is distributed in the hope that it will be useful, but
                     10:  * WITHOUT ANY WARRANTY; without even the implied warranty of
                     11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     12:  * General Public License for more details.
                     13:  *
                     14:  * You should have received a copy of the GNU General Public License
                     15:  * along with this program; if not, write to the Free Software
                     16:  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
                     17:  */
                     18: 
                     19: FILE_LICENCE ( GPL2_OR_LATER );
                     20: 
                     21: #include <string.h>
                     22: #include <stdio.h>
                     23: #include <errno.h>
                     24: #include <ipxe/netdevice.h>
                     25: #include <ipxe/dhcp.h>
                     26: #include <ipxe/monojob.h>
                     27: #include <ipxe/process.h>
                     28: #include <usr/ifmgmt.h>
                     29: #include <usr/dhcpmgmt.h>
                     30: 
                     31: #define LINK_WAIT_MS   15000
                     32: 
                     33: /** @file
                     34:  *
                     35:  * DHCP management
                     36:  *
                     37:  */
                     38: 
                     39: int dhcp ( struct net_device *netdev ) {
                     40:        struct dhcphdr *dhcphdr;
                     41:        typeof ( dhcphdr->chaddr ) chaddr;
                     42:        unsigned int hlen;
                     43:        unsigned int i;
                     44:        int rc;
                     45: 
                     46:        /* Check we can open the interface first */
                     47:        if ( ( rc = ifopen ( netdev ) ) != 0 )
                     48:                return rc;
                     49: 
                     50:        /* Wait for link-up */
                     51:        if ( ( rc = iflinkwait ( netdev, LINK_WAIT_MS ) ) != 0 )
                     52:                return rc;
                     53: 
                     54:        /* Perform DHCP */
                     55:        printf ( "DHCP (%s", netdev->name );
                     56:        hlen = dhcp_chaddr ( netdev, chaddr, NULL );
                     57:        for ( i = 0 ; i < hlen ; i++ )
                     58:                printf ( "%c%02x", ( i ? ':' : ' ' ), chaddr[i] );
                     59:        printf ( ")" );
                     60: 
                     61:        if ( ( rc = start_dhcp ( &monojob, netdev ) ) == 0 ) {
                     62:                rc = monojob_wait ( "" );
                     63:        } else if ( rc > 0 ) {
                     64:                printf ( " using cached\n" );
                     65:                rc = 0;
                     66:        }
                     67: 
                     68:        return rc;
                     69: }
                     70: 
                     71: int pxebs ( struct net_device *netdev, unsigned int pxe_type ) {
                     72:        int rc;
                     73: 
                     74:        /* Perform PXE Boot Server Discovery */
                     75:        printf ( "PXEBS (%s type %d)", netdev->name, pxe_type );
                     76:        if ( ( rc = start_pxebs ( &monojob, netdev, pxe_type ) ) == 0 )
                     77:                rc = monojob_wait ( "" );
                     78: 
                     79:        return rc;
                     80: }

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