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Add UUID to DHCP request as option 97 (if available).

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This commit is contained in:
Michael Brown 2007-11-21 03:29:53 +00:00
parent 899f5b8ab2
commit 26f3a09ccf
5 changed files with 30 additions and 0 deletions
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10
src/arch/i386/include/bits/uuid.h Normal file
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@ -0,0 +1,10 @@
#ifndef _I386_UUID_H
#define _I386_UUID_H
#include <smbios.h>
static inline int get_uuid ( union uuid *uuid ) {
return smbios_get_uuid ( uuid );
}
#endif /* _I386_UUID_H */

1
src/arch/i386/include/smbios.h
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@ -46,5 +46,6 @@ extern int find_smbios_structure ( unsigned int type,
extern int find_smbios_string ( struct smbios_strings *strings,
unsigned int index,
char *buffer, size_t length );
extern int smbios_get_uuid ( union uuid *uuid );
#endif /* _SMBIOS_H */

3
src/include/gpxe/dhcp.h
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@ -135,6 +135,9 @@ struct job_interface;
*/
#define DHCP_BOOTFILE_NAME 67
/** UUID client identifier */
#define DHCP_CLIENT_UUID 97
/** Etherboot-specific encapsulated options
*
* This encapsulated options field is used to contain all options

3
src/include/gpxe/uuid.h
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@ -8,6 +8,9 @@
#include <stdint.h>
union uuid;
#include <bits/uuid.h>
/** A universally unique ID */
union uuid {
/** Canonical form (00000000-0000-0000-0000-000000000000) */

13
src/net/udp/dhcp.c
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@ -31,6 +31,7 @@
#include <gpxe/retry.h>
#include <gpxe/tcpip.h>
#include <gpxe/ip.h>
#include <gpxe/uuid.h>
#include <gpxe/dhcp.h>
/** @file
@ -529,6 +530,7 @@ int create_dhcp_request ( struct net_device *netdev, int msgtype,
struct device_description *desc = &netdev->dev->desc;
struct dhcp_netdev_desc dhcp_desc;
struct dhcp_client_id client_id;
union uuid uuid;
size_t dhcp_features_len;
size_t ll_addr_len;
int rc;
@ -604,6 +606,17 @@ int create_dhcp_request ( struct net_device *netdev, int msgtype,
return rc;
}
/* Add client UUID, if we have one. Required for PXE. */
if ( ( rc = get_uuid ( &uuid ) ) == 0 ) {
if ( ( rc = set_dhcp_packet_option ( dhcppkt,
DHCP_CLIENT_UUID, &uuid,
sizeof ( uuid ) ) ) !=0){
DBG ( "DHCP could not set client UUID: %s\n",
strerror ( rc ) );
return rc;
}
}
return 0;
}