<syntaxhilight lang="bash"> class "Apple-Intel-Netboot" { # Limit this class to only Intel Apple machines match if substring (option vendor-class-identifier, 0, 14) = "AAPLBSDPC/i386"; option dhcp-parameter-request-list 1,3,17,43,60; # Ask for these options from the client
if (option dhcp-message-type = 1) { # On DHCPDiscover Message(s) # Tell the client, via selected boot image (08:04:), which image we're preferring as default (81:00:00:89) option vendor-class-identifier "AAPLBSDPC"; option vendor-encapsulated-options 08:04:81:00:00:89; # bsdp option 8 (length 04) -- selected image id;
} elsif (option dhcp-message-type = 8) { # on DHCPInform Messages, Us/Our (Server), Them (Client) option vendor-class-identifier "AAPLBSDPC"; # Let Them know we're responding with Apple BSDP Information if (substring(option vendor-encapsulated-options, 0, 3) = 01:01:01) { log(info, "BSDP_LIST"); # BSDP List # Let Them know this is the let, what server, the server's priority, what Our default image is, and provide the image list option vendor-encapsulated-options 01:01:01: # Start BSDP Inform/List Option 1 (01:), Length 1 (01:), Message Type List(1) (01:) 03:04: # BSDP option code 3 (length 04) -- Server Identifier 0A:00:03:02: # Server IP (10.0.3.2), Dec->Hex 04:02: # BSDP option code 4 (length 02) -- Server Priority 80:00: # Priority (32768) Dec->Hex 07:04: # BSDP option code 7 (length 04) -- Default Image ID 81:00:00:89: # Image ID - (137) Dec->Hex # # 81 breaks into: 0 or 8 for Non-Install (NetBoot) set or Install (NetInstal) set, # Most, including DeployStudio default to NetInstall set. # Then 0 for Mac OS 9, 1 for Mac OS X (Client) # 2 for OS X Server, and 3 for Hardware Diagnostics # 4- through 127 (x4:00-xf:ff) reversed for future use # And the last two are for the Image ID (Dec->Hex) # IDs 1-4095 (00:01-0F:FF) are for Server-Specific Images (You will probably want an ID in this range) # IDs 4096-65535 (10:00-FF:FF) Are "Globally-Unique", Multiple servers can present this same ID # and the client will only see one image, and pick a random(?) server to talk to. # 09: # BSDP option code 9 -- Boot image list 2A: # Length - =5*<numofimages>+<sumofallimagenames>, eg =5*2+(23+9), =10+32, =42, Dec->Hex =2A # This only appears once in the pacakge, no matter how many images you have below 81:00:00:89: # Image ID (137) -- dec->hex, see above (Default Image ID) for how to forumlate the full ID 09:44:6f:45:2d:49:6d:61:67:65: # Length(09):Name 'DoE-Image' ascii->hex 81:00:00:8A: # Image ID -- 138 17:44:53:52:2d:4e:42:30:31:30:31:32:30:31:32:2d:30:35:31:32:32:30:31:32; # Length(Hex:17,Dec:23):Name #-- Name: DSR-NB01012012-05122012 } elsif (substring(option vendor-encapsulated-options, 0, 3) = 01:01:02) { log(info, "BSDP_SELECT"); # BSDP Select, This is the client selecting which image they want to boot from # Here we basically do if statements to catch what image is referenced # Since we MIGHT be clustered, Check to see if we're the server being asked, this is BSDP Option 3 (Length 04) if (substring(option vendor-encapsulated-options, 9, 4) = 0A:00:03:02) { # Match to IP: 10.0.3.2, same as above. You'll want to change this log(info, "BSDP_SELECT-Responding, Client is talking to us."); # Log we're being talked to if (substring(option vendor-encapsulated-options, 15, 4) = 81:00:00:89) { # Catch Image ID 81:00:00:89 log(info, "BSDP_SELECT-Image: 137:DOE-Image"); # This isn't _needed_, but is nice for debugging/knowing # Insert stuff needed to boot here filename "/ipxe.efi"; next-server 10.0.3.2; option root-path = "http://boot.neltia.net/ipxe.efi"; } elsif (substring(option vendor-encapsulated-options, 15, 4) = 81:00:00:8A) { # Catch Image ID 81:00:00:8A log(info, "BSDP_SELECT-Image: DSR-NB01012012-05122012"); # Insert stuff here needed for boot filename "DSRBoot.img"; next-server 10.0.3.2; option root-path = "http://osx-server.boot.neltia.net/DSRBoot.img"; } else { log(info,"BSDP_SELECT-ERROR: Client responded with an image we don't have a match for! -- (Image added to list, but not in select catch?)"); } # End Image Selection Response } else { log(info,"BSDP_SELECT-Ignoring, Client is talking to another server--We're not worthy!"); # Log that we are not worthy of the client's time } # End Server Check } # End BSDP Options Check } # End DHCPInform Messages } # End Class
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