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| author | Michael Brown | 2009-01-21 04:43:26 +0100 |
|---|---|---|
| committer | Michael Brown | 2009-01-21 04:43:26 +0100 |
| commit | 6941793416474f68f3dcbbf55258ac35de65026a (patch) | |
| tree | df2efeae175b95f2e0f2eb1218f271358c6c8ac6 /src/include | |
| parent | [tcpip] Allow for transmission to multicast IPv4 addresses (diff) | |
| download | ipxe-6941793416474f68f3dcbbf55258ac35de65026a.tar.gz ipxe-6941793416474f68f3dcbbf55258ac35de65026a.tar.xz ipxe-6941793416474f68f3dcbbf55258ac35de65026a.zip | |
[dhcp] Add preliminary support for PXE Boot Servers
Some PXE configurations require us to perform a third DHCP transaction
(in addition to the real DHCP transaction and the ProxyDHCP
transaction) in order to retrieve information from a "Boot Server".
This is an experimental implementation, since the actual behaviour is
not well specified in the PXE spec.
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/gpxe/dhcp.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/include/gpxe/dhcp.h b/src/include/gpxe/dhcp.h index cd3964c55..a0a09412a 100644 --- a/src/include/gpxe/dhcp.h +++ b/src/include/gpxe/dhcp.h @@ -81,6 +81,9 @@ struct dhcp_packet; /** Vendor encapsulated options */ #define DHCP_VENDOR_ENCAP 43 +/** PXE boot server multicast address */ +#define DHCP_PXE_BOOT_SERVER_MCAST DHCP_ENCAP_OPT ( DHCP_VENDOR_ENCAP, 7 ) + /** Requested IP address */ #define DHCP_REQUESTED_ADDRESS 50 @@ -480,6 +483,9 @@ struct dhcphdr { /** Settings block name used for ProxyDHCP responses */ #define PROXYDHCP_SETTINGS_NAME "proxydhcp" +/** Setting block name used for BootServerDHCP responses */ +#define BSDHCP_SETTINGS_NAME "bs" + extern int dhcp_create_packet ( struct dhcp_packet *dhcppkt, struct net_device *netdev, uint8_t msgtype, struct dhcp_options *options, |