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100 Commits (9119b0c8af15333796e02433677a54e952b1a73d)

Author SHA1 Message Date
Michael Brown 771455653b Bugfix: DHCP message type should be a one-byte option... (d'oh) 2007-09-13 01:16:23 +01:00
Michael Brown 2ff1b1245b Use start_timer_nodelay() in protocols which rely on the retry timer 
to generate the initial transmission; this cuts off around 0.3s per
instantiated connection.
 2007-08-13 11:03:33 -07:00
Michael Brown 0acb016840 Add FEATURE() macro, plus code to display features at startup time, 
and generate DHCP options to indicate features to DHCP server (and to
PXE NBPs).
 2007-08-02 04:24:39 +01:00
Michael Brown 79691961ba Add identifier for the network device into the DHCP request. 2007-07-31 03:32:22 +01:00
Michael Brown 5e26df0325 Centralise construction of the DHCP request and response packets. 2007-07-31 03:02:21 +01:00
Michael Brown b34d4d0449 Separate the "is data ready" function of xfer_seek() into an 
xfer_window() function, which can return a scalar rather than a
boolean.
 2007-07-08 14:11:07 +01:00
Michael Brown ca4c6f9eee Kill off unused request() method in data-xfer interface. 2007-07-08 02:10:54 +01:00
Holger Lubitz a4d3476e0e convert to zalloc 2007-07-06 21:08:54 +02:00
Michael Brown 934b70d62c Apply global DHCP options when register_dhcp_options() is called. Do 
not apply DHCP options in dhcp_configure_netdev().
 2007-07-06 17:07:50 +01:00
Michael Brown 1567b69895 Add concept of DHCP option applicators. 2007-07-05 18:38:14 +01:00
Michael Brown 3bf5eb49d0 Can't use strncpy() to copy strings that aren't NUL-terminated to 
begin with.
 2007-07-01 03:22:28 +01:00
Michael Brown acd598b4f9 Don't build option-overloaded packets; they just confuse people (ISC 
DHCPD and Windows RIS in particular).
 2007-06-30 01:32:53 +01:00
Michael Brown c73bff7ae5 Set current working URI based on TFTP server specified by DHCP. 2007-06-28 21:22:25 +01:00
Michael Brown 1ec7bb789d Add dhcp_configure_netdev() 2007-06-28 15:18:26 +01:00
Michael Brown cf33b568dc Forgot to set initial session state. Now works! 2007-06-28 01:55:01 +01:00
Michael Brown 73fe1ba9dd Kill off job::start() (it was only ever added as part of an aborted 
attempt at triggering TCP-related protocols to start).
 2007-06-28 01:09:45 +01:00
Michael Brown 07dc294de8 Update DHCP to use data-xfer interface (not yet tested). 2007-06-27 23:20:36 +01:00
Michael Brown f77815f2b1 Kill off hotplug.h and just make net devices normal reference-counted 
structures.

DHCP still broken and #if 0'd out.
 2007-06-27 14:48:31 +01:00
Anselm Martin Hoffmeister ed7dc02a95 hoffmeis: Preparations for syslog support (LOGSERVER in DHCP, linewise 
output buffering defintions and the like)
 2007-04-09 18:01:43 +00:00
Michael Brown 835d35749f Improved debugging 2007-01-16 03:10:37 +00:00
Michael Brown 4e20d73bb5 Gave asynchronous operations approximate POSIX signal semantics. This 
will enable us to cascade async operations, which is necessary in order to
properly support DNS.  (For example, an HTTP request may have to redirect
to a new location and will have to perform a new DNS lookup, so we can't
just rely on doing the name lookup at the time of parsing the initial
URL).

Anything other than HTTP is probably broken right now; I'll fix the others
up asap.
 2007-01-15 08:49:10 +00:00
Michael Brown 649b789e93 DHCP transmits via specified net device, so no need to create a dummy 
routing table entry just to fool ipv4.c any more.
 2007-01-10 02:37:23 +00:00
Michael Brown 7fafa89258 A DHCP session holds a persistent reference to a network device 2007-01-04 03:42:28 +00:00
Michael Brown 60a3f77711 Close UDP connection when DHCP completes. 2006-12-20 07:19:48 +00:00
Michael Brown 04c09823bd Request all the options that we're prepared to do anything with. 2006-12-12 16:18:20 +00:00
Michael Brown a1af111a87 Also request root-path. 2006-12-08 15:49:46 +00:00
Michael Brown 88e38fa148 We don't actually have a stdio.h header file. Our printf() functions are 
defined in vsprintf.h.  (This may change, since vsprintf.h is a
non-standard name, but for now it's the one to use.)

There should be no need to include vsprintf.h just for DBG() statements,
since include/compiler.h forces it in for a debug build anyway.
 2006-09-27 10:58:14 +00:00
Marty Connor 6ac78f6aff added stdio.h to includes for DBG compilation 2006-09-27 05:57:06 +00:00
Michael Brown cab3f4502b Correct option number for DHCP_DNS_SERVERS, and add it to the request 
list.
 2006-08-27 01:37:58 +00:00
Michael Brown e9561aafc0 Derive xid dynamically from the netdev, so that we can call 
create_dhcp_packet() from pxe_preboot.c, after the dhcp_session is long
gone.

Expose the functions required by pxe_preboot.c
 2006-08-09 02:56:40 +00:00
Michael Brown ffe0e24249 Make the UDP senddata() methods return a status code. 
udp_connect() now follows the standard BSD sockets semantics and simply
sets the default address for outgoing packets; it doesn't filter incoming
packets.
 2006-08-03 23:10:14 +00:00
Michael Brown 467e9627cc Added features that will be required for PXE UDP support. 
Introduced struct sockaddr_tcpip, to simplify code that deals with
both IPv4 and IPv6 addresses.

Reorganised parts of tcpip.c and udp.c.
 2006-08-02 00:02:21 +00:00
Michael Brown ae277992c2 Request bootfile name; it doesn't seem to be automatically supplied by 
all servers.
 2006-08-01 14:12:27 +00:00
Michael Brown 3085f03ad4 Request Etherboot encapsulated options. 
Parameter request list is yet another option that ISC dhcpd ignores
unless it's in the main options block.

Fix logic error in parsing file and sname fields.
 2006-07-20 14:14:41 +00:00
Michael Brown 6a0b4c9772 Free up any allocated options if we fail 2006-07-20 02:25:39 +00:00
Michael Brown 764cb41456 Document memory ownership. 2006-07-20 02:23:42 +00:00
Michael Brown 7ca1bb0fbe Now successfully negotiates the whole DHCPDISCOVER/OFFER/REQUEST/ACK 
cycle.  :)
 2006-07-20 02:19:06 +00:00
Michael Brown 30d9bcdc6e Rename unwieldy function 2006-07-20 00:24:25 +00:00
Michael Brown 9ad5cede96 Set DHCP_MESSAGE_TYPE option within the main options block. This 
doesn't seem to be required by the RFCs, but at least ISC dhcpd and
ethereal refuse to recognise it otherwise.
 2006-07-20 00:18:50 +00:00
Michael Brown 881b90e82c Packets without a DHCP_MESSAGE_TYPE option are probably just BOOTP 
packets.
 2006-07-20 00:03:25 +00:00
Michael Brown 0768670fd8 udp_open() takes ports in network-endian order. 2006-07-19 21:56:27 +00:00
Michael Brown 224529d8dd Now capable of sending what, to me, looks like a valid DHCPDISCOVER 
(apart from the bad UDP checksum).
 2006-07-19 20:50:50 +00:00
Michael Brown e8daeb62b1 Eliminate confusion between functions that return pointers and 
functions that return status codes.

Zero the DHCP packet buffer *before* creating the options structures
inside it.
 2006-07-19 18:11:31 +00:00
Michael Brown 6d9d48537e Added some debug messages and DHCP test code 2006-07-19 17:49:31 +00:00
Michael Brown 317b962b65 Proof of concept: transmit a single DHCPDISCOVER and dump out any 
parsed DHCP responses.
 2006-07-19 17:32:13 +00:00
Michael Brown 16fc9858db Beginnings of DHCP protocol implementation 2006-07-19 17:01:06 +00:00
Michael Brown 254fe6e00e Split DHCP packet creation into two parts: creating the basic packet 
structure, and populating it with options.  This should allow us to
use the same basic options list for both DHCPDISCOVER and DHCPREQUEST,
plus making it much easier to set the non-constant parameters
(e.g. requested IP address) in request packets.
 2006-07-19 12:12:45 +00:00
Michael Brown 6c01d3bb95 Fix creation of the htype field; the ll_proto field from which it is 
derived is a 16-bit big-endian field, but htype is only 8 bits wide.
 2006-07-17 13:07:14 +00:00
Michael Brown b24947f0c0 Add sketch code to reassemble a DHCP packet from our internal "everything 
is a DHCP option" data structures.

We need this code in order to be able to return a DHCP packet to a PXE NBP
which reflects options from our multiple sources (e.g. NVS and DHCP
server).  This is expensive, but necessary.  Having paid this cost, we may
as well try to use the same code to generate our DHCP request packets,
since the process is similar.
 2006-07-17 12:47:22 +00:00
Michael Brown 12da7ea475 Add (untested) code for parsing a received DHCP packet and constructing a 
DHCP options block from the contents.
 2006-07-15 19:24:55 +00:00