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