4c418d2100
Use net_device_operations structure and netdev_nullify() to allow for
...
safe dropping of the netdev ref by the driver while other refs still
exist.
Add netdev_irq() method. Net device open()/close() methods should no
longer enable or disable IRQs.
Remove rx_quota; it wasn't used anywhere and added too much complexity
to implementing correct interrupt-masking behaviour in pxe_undi.c.
2007-07-07 16:43:39 +01:00
a4d3476e0e
convert to zalloc
2007-07-06 21:08:54 +02:00
389c63d7c4
convert to zalloc
2007-07-06 21:08:41 +02:00
32e4ca8ae3
convert to zalloc
2007-07-06 21:08:29 +02:00
da3c785816
convert to zalloc
2007-07-06 20:52:58 +02:00
2b9fb513f4
convert to zalloc
2007-07-06 20:52:01 +02:00
7872b890fe
convert to zalloc
2007-07-06 20:50:32 +02:00
7fa85d19b9
convert to zalloc
2007-07-06 20:49:26 +02:00
dc6c1c294d
convert to zalloc
2007-07-06 20:47:15 +02:00
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
1567b69895
Add concept of DHCP option applicators.
2007-07-05 18:38:14 +01:00
539ff45fd0
Allow recording of TX and RX errors to aid in end-user debugging.
2007-07-05 17:18:27 +01:00
8156f6bd19
Switch compiler warning on tcp_open() to a #warning
2007-07-05 12:00:35 +01:00
a5f33ea283
Added missing line to set return status code.
2007-07-03 21:22:12 +01:00
fd86c819ba
Use a linker-table based system to automatically mark and start up
...
permanent processes, rather than requiring each one to have its own
initialisation function.
2007-07-03 20:09:14 +01:00
4bcfe7507b
Merge branch 'master' of /pub/scm/gpxe
2007-07-03 13:20:54 -04:00
c77704cb60
Warnings purge: src/{crypto,hci,net}
2007-07-03 13:20:22 -04:00
0924cf678e
Implemented (untested) PXENV_START_UNDI.
2007-07-03 18:17:14 +01:00
5b52630a9c
Never attempt to route the broadcast address.
2007-07-03 13:55:45 +01:00
4968caab82
Add trivial net device statistics (TX and RX packet count), reported
...
via UNDI API and also by ifstat command; may be useful for debugging.
2007-07-03 00:15:53 +01:00
0297a63877
Merge branch 'master' of ssh://rom.etherboot.org/pub/scm/gpxe
2007-07-02 15:36:19 -04:00
f04899bf6c
Warnings purge
2007-07-02 15:33:34 -04:00
332614a382
Add untested support for UNDI transmit and receive.
2007-07-02 20:05:58 +01:00
d7e471f654
Improve debugging
2007-07-01 22:04:19 +01:00
3bf5eb49d0
Can't use strncpy() to copy strings that aren't NUL-terminated to
...
begin with.
2007-07-01 03:22:28 +01:00
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
c73bff7ae5
Set current working URI based on TFTP server specified by DHCP.
2007-06-28 21:22:25 +01:00
d465ae9785
Bugfix: iobuf->data always points to the start of the allocated
...
portion, not to the bit we want to currently write to...
2007-06-28 18:38:50 +01:00
5de837cc67
Mildly ugly hack to force correct linkage.
2007-06-28 18:06:25 +01:00
1ec7bb789d
Add dhcp_configure_netdev()
2007-06-28 15:18:26 +01:00
cf33b568dc
Forgot to set initial session state. Now works!
2007-06-28 01:55:01 +01:00
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
07dc294de8
Update DHCP to use data-xfer interface (not yet tested).
2007-06-27 23:20:36 +01:00
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
e381714c07
Partial migration of UDP to data-xfer interface. (Will not link at
...
present; DHCP is broken).
2007-06-20 01:13:35 +01:00
2d4c72b762
Remove unused headers.
2007-06-11 23:40:34 +01:00
f87bc837f4
Updated DNS to use not-yet-implemented UDP data-xfer API.
2007-06-11 23:30:44 +01:00
01b4bde8a0
Updated TFTP and PXE UDP API code to use not-yet-implemented data-xfer
...
UDP API.
2007-06-11 18:11:29 +01:00
95adce0ce1
Add concept of transfer metadata, to be used by UDP in order to
...
implement sendto()/recvfrom() equivalents.
2007-06-11 15:04:39 +01:00
6f0a6c09db
Merge branch 'master' into mcb-tcp-xfer
2007-06-08 16:33:24 +01:00
335b99a39d
Move [v]ssnprintf() from iscsi.c into vsprintf.c; we need them
...
elsewhere as well.
2007-05-31 13:26:50 +00:00
4ccd1e8198
Should call ftp_done() if constructor fails.
2007-05-29 15:37:30 +00:00
735e07268e
Update HTTP to use data-xfer interface.
2007-05-29 15:37:09 +00:00
0dfd5b84fd
Updated FTP to use data-xfer API.
2007-05-28 20:11:02 +00:00
3acd51597a
Add sanity check and extra debug message
2007-05-28 20:06:41 +00:00
63719deea9
Introduce name resolution interface and named socket opener.
2007-05-27 01:07:00 +00:00
1311b4194c
Eliminate PF_INET; just use the AF_INET from the struct sockaddr instead.
2007-05-26 20:41:23 +00:00
b8618d76db
Modify data-xfer semantics: it is no longer necessary to call one of
...
request(), seek() or deliver_xxx() in order to start the data flow.
Autonomous generators must be genuinely autonomous (having their own
process), or otherwise arrange to be called. TCP does this by
starting the retry timer immediately.
Add some debugging statements.
2007-05-26 15:04:36 +00:00
3601103381
Modify process semantics; rescheduling is now automatic.
...
Add reference-counting to processes.
Add timer_running() test.
2007-05-26 15:00:56 +00:00
1136c19fa4
Updated tcp.c to provide a standardised data transfer interface.
2007-05-25 15:58:42 +00:00
776357214e
Rename pkbpad.c to iobpad.c
2007-05-19 18:42:27 +00:00
3e2c6b6736
pkbuff->iobuf changeover
...
Achieved via Perl using:
perl -pi -e 's/pk_buff/io_buffer/g; s/Packet buffer/I\/O buffer/ig; ' \
-e 's/pkbuff\.h/iobuf.h/g; s/pkb_/iob_/g; s/_pkb/_iob/g; ' \
-e 's/pkb/iobuf/g; s/PKB/IOB/g;'
2007-05-19 18:39:40 +00:00
ed7dc02a95
hoffmeis: Preparations for syslog support (LOGSERVER in DHCP, linewise
...
output buffering defintions and the like)
2007-04-09 18:01:43 +00:00
ff5aac826a
hoffmeis: Fixing situation where absence of a newdata() handler for UDP
...
connections might break things. Only-sending applications like syslog()
do not need a newdata() handler, so added a check if that handler exists.
2007-04-09 17:34:10 +00:00
520d9c36af
Updated ISAPnP, EISA, MCA and ISA buses to current device model.
...
ISA 3c509 is currently non-functional, although the EISA (3c509-eisa) and
MCA (3c529) variants should build OK.
None of this code is yet tested.
2007-03-10 18:08:33 +00:00
af3149d18e
Allow queries in GET requests
2007-02-01 21:01:47 +00:00
3fd10074d8
SSL needs quite a lot of spare memory
2007-02-01 09:38:16 +00:00
2c67167929
Don't pass through zero-length requests
2007-02-01 07:18:56 +00:00
a3695b1ff6
Placeholder for TLS insertion
2007-01-31 03:47:42 +00:00
2d726144f7
Filter insertion now actually works
2007-01-31 03:43:59 +00:00
138967dd6b
Tidy up debug messages
2007-01-31 03:05:49 +00:00
e38e516463
Add insert_filter() function
2007-01-31 03:04:56 +00:00
6d32f0e6e2
Changed to use the generic stream API.
2007-01-31 02:09:13 +00:00
02f18565da
First sketch of stream API
2007-01-31 00:40:35 +00:00
55601b2d38
Placeholder
2007-01-30 22:55:19 +00:00
2f7eac1646
Low-overhead filter streams
2007-01-30 12:17:03 +00:00
bde8878eef
Keep HTTP progress updated, and display a progress indicator during the
...
download
2007-01-29 04:19:45 +00:00
92a78c8e15
Added SIGKILL handler
2007-01-19 15:19:52 +00:00
73b09ecba6
Use stdio.h instead of vsprintf.h
2007-01-19 01:13:12 +00:00
4e3976711d
A working name resolution framework
2007-01-18 22:38:13 +00:00
075f8144ff
Have DHCP set the nameserver, rather than DNS read the DHCP nameserver
...
value.
2007-01-18 21:22:03 +00:00
c014f607a8
Use total free memory as advertised window. This seems to be sufficient
...
to avoid drops even on slow NICs.
2007-01-18 20:39:17 +00:00
6d4e37cf42
Move include/malloc.h to include/gpxe/malloc.h, since everything in there
...
is now gPXE-specific. (The standard malloc() et al have been in stdlib.h
for a while).
Add free memory counter.
2007-01-18 20:11:04 +00:00
5ff23aa406
Include stdlib.h rather than malloc.h
2007-01-18 20:06:03 +00:00
05f4c3d176
Remove the one-packet-per-poll-cycle limit; it seems to no longer be
...
needed now that performance is up.
2007-01-18 16:50:35 +00:00
6c72bf13a1
Presize the download buffer when we see the Content-Length header;
...
this saves around 70us per received packet (which is around 50% of the
overall packet processing time).
2007-01-18 13:26:57 +00:00
08da93a311
Reorder functions to more closely reflect the flow of control
2007-01-18 13:10:26 +00:00
06630a3036
Switch from calloc() to malloc()+memset() to match the practices used
...
almost everywhere else.
2007-01-18 12:45:58 +00:00
dd6d94004f
HTTP/DNS now working fully asynchronously. HTTP/IP addresses and any
...
other protocol won't work at the moment.
2007-01-18 03:39:45 +00:00
99e58865c7
Use struct sockaddr rather than struct sockaddr_tcpip
...
Tidy up code
2007-01-18 03:35:00 +00:00
f11da20f25
When a network device is specified to tcpip_tx() or it's children, treat
...
it as a fallback network device rather than an explicitly forced network
device.
Clear routing table entries before re-attempting DHCP.
2007-01-16 04:09:13 +00:00
1a1fc23417
Improve debugging
2007-01-16 03:29:15 +00:00
bcdb6fad3e
Improve debug messages
2007-01-16 03:19:40 +00:00
835d35749f
Improved debugging
2007-01-16 03:10:37 +00:00
143d14614d
Quickly hack in DNS resolution as a proof of concept
2007-01-15 17:32:52 +00:00
9af12d5fba
A working DNS resolver (not yet tied in to anything)
2007-01-15 17:31:35 +00:00
df0397f334
Update TFTP and FTP to take the same temporary URI scheme as HTTP
2007-01-15 09:58:26 +00:00
afa752f5fb
Protocol's get() method no longer takes ownership of the URI. HTTP is the
...
exception rather than the rule; we may as well keep things clean for other
protocols.
2007-01-15 09:18:06 +00:00
1f92c6b3e8
Must free http on the error path; nothing else will do it
2007-01-15 09:08:40 +00:00
c676591cd1
Unmaintained example code is probably worse than useless.
2007-01-15 09:06:12 +00:00
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
76aa9ad07d
Make TCP give up immediately when it receives -ENETUNREACH from
...
tcpip_tx(). This avoids the irritating wait when you accidentally type
"kernel pxelinux.0" before bringing up the network interface.
Add ENETUNREACH to strerror()'s list.
2007-01-14 16:47:03 +00:00
c953c1a1c3
Use -ENETUNREACH to mean "no reachable network device exists, don't bother
...
retrying".
2007-01-14 16:22:10 +00:00
526d314266
Advertise a larger MSS to improve TCP performance.
2007-01-13 17:36:17 +00:00
497c3a5aad
Fixed HTTP
2007-01-12 19:18:13 +00:00
ad22cccc09
No need to maintain a received byte count; we always fill in sequential
...
order so we can just use buffer->fill.
2007-01-12 17:16:46 +00:00
0010e10ef3
Update TFTP to use a struct buffer rather than a callback.
...
Add debug autocolourisation to TFTP.
2007-01-11 15:14:54 +00:00
037da9d840
I hate NULL pointer dereferences.
2007-01-11 05:27:02 +00:00
a3ed0cbbc7
Extract packet-padding login from rtl8139.c to a separate pkbpad.c file.
2007-01-11 05:25:50 +00:00
6918cf9e9e
Change FTP to use a data buffer rather than a callback function.
2007-01-11 04:51:20 +00:00
d9ba8f790b
Add route() function to display routing table.
2007-01-10 20:38:20 +00:00
1fa5cd0e2b
Add find_pci_netdev()
2007-01-10 16:16:05 +00:00
dad5274522
Add "name" field to struct device to allow human-readable hardware device
...
names.
Add "dev" pointer in struct net_device to tie network interfaces back to a
hardware device.
Force natural alignment of data types in __table() macros. This seems to
prevent gcc from taking the unilateral decision to occasionally increase
their alignment (which screws up the table packing).
2007-01-10 04:22:09 +00:00
cc9b32c405
Remove uIP; we haven't used it for quite some time now.
2007-01-10 02:52:58 +00:00
753e156844
Allow udp_{send,sendto,sendto_via} to be called outside of the
...
udp_senddata() callback. This will simplify any UDP protocols that don't
need the temporary buffer.
2007-01-10 02:46:39 +00:00
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
c821a7b20d
Add udp_sendto_via() to allow e.g. DHCP to transmit without first having
...
to set up dummy routing entries.
2007-01-10 02:31:38 +00:00
f008b77ba2
Allow an explicit network device to be specified for IP-layer
...
transmissions.
2007-01-10 02:25:11 +00:00
d24b80acf2
Added network interface management commands
2007-01-10 01:55:07 +00:00
98b6154c3e
Add "name" field to network device, to facilitate netdev commands.
2007-01-09 23:48:18 +00:00
c65fae2475
Add RX quotas to the net device poll() method. This avoids the problem
...
of alloc_pkb() exhaustion when e.g. an iSCSI-booted DOS session is left
idle for a long time at the C:\ prompt and builds up a huge packet
backlog.
2007-01-09 21:47:01 +00:00
18e5353bed
Rename pkb_available() to pkb_tailroom() for consistency with Linux's
...
skb_tailroom(). Add pkb_headroom().
2007-01-09 20:56:31 +00:00
b7fcfe8ece
Added net device TX queue; this will be needed to support the PXE UNDI API
...
(which will need us to wait for TX completions).
Added debug autocolourisation to netdevice.c
2007-01-09 20:18:31 +00:00
8a268073a7
Move start/stop/expire debug messages to DBG2() level.
2007-01-09 17:39:52 +00:00
2eeb7c4fe7
Define "connected" as
...
"when SYN is ACKed and we have already received SYN", or
"when SYN is received and we have already had SYN ACKed"
rather than just
"when SYN is ACKed"
This avoids spuriously calling the connected() method when we receive
a RST,ACK in response to a SYN.
2007-01-09 05:01:22 +00:00
aaca21a2b6
We can't assert that the RX engine is idle in iscsi_done(), because it
...
may be called during the RX data processor, before the RX engine
transitions back to idle. It doesn't really matter if the RX engine
isn't idle when iscsi_done() is called, because it will just pick up
where it left off on the next call. (The same is not true for the TX
engine, so keep the TX engine assertion.)
2007-01-09 04:42:23 +00:00
6ea07b9247
Use debug auto-colourisation.
2007-01-09 04:38:39 +00:00
76525294ee
Clean up connection closing and permanent failure logic.
2007-01-09 04:31:33 +00:00
20681d6168
Allow empty checksums on received packets
2007-01-04 05:17:28 +00:00
0c03bb5a9a
Make open() and close() an official part of the netdevice API.
...
Call netdevice's poll() and transmit() methods only when device is open.
2007-01-04 04:20:08 +00:00
7fafa89258
A DHCP session holds a persistent reference to a network device
2007-01-04 03:42:28 +00:00
b29861a5aa
IPv6 minirouting table entries hold persistent references to net devices.
2007-01-04 03:28:30 +00:00
b22d4405c0
An AoE session holds a persistent reference to a net device.
2007-01-04 03:21:45 +00:00
35b5e5d3f5
Minirouting table entries hold a persistent reference to a net_device.
2007-01-04 03:10:21 +00:00
bdf79ec8dc
Use hotplug support to notify persistent reference holders when a
...
net_device is unregistered.
2007-01-04 03:09:28 +00:00
b0daa99dce
Send RST packets when we get a non-matching connection, or receive an
...
out-of-range ACK.
2007-01-03 22:21:59 +00:00
eea1167a85
Accept RST on received packets
2007-01-03 21:51:36 +00:00
94fc68895d
Improve consistency between TCP and UDP RX datapaths
2007-01-03 21:13:11 +00:00
a0525a4ed3
Verify checksums on the RX datapath.
...
Simplify checksum generation on the TX datapath.
2007-01-03 20:48:52 +00:00
285beeff7c
Tidy up debug messages
...
Move routing into a separate function
2007-01-03 16:39:11 +00:00
718294553b
Fix compiler warning
2007-01-03 15:56:15 +00:00
83e1340d88
Use autocolourisation
2006-12-29 14:09:23 +00:00
feb4f65d1e
Use auto-colourisation for debug messages.
...
Truncate TX length to TCP window at time of transmission rather than at
time of adding to TX packet; this is conceptually cleaner and also allows
the application to call tcp_send() multiple times to build up a single
packet.
2006-12-29 14:03:03 +00:00
ce9819af27
Redefine TCP state to include "flags that have been sent" rather than
...
"flags that are currently being sent". This allows at least one special
case (checking that we haven't already sent a FIN in tcp_rx_fin()) to be
collapsed.
2006-12-29 00:44:31 +00:00
be31970e36
Don't send a second FIN if we receive a FIN while in FIN_WAIT_2
2006-12-27 23:44:05 +00:00
61ed298bc7
Merge changes from mcb-tcp-fixes branch.
2006-12-27 23:09:46 +00:00
1a11cc5c5b
Added times to start/stop log messages
2006-12-27 22:56:39 +00:00
4cc1c1bd4c
Ensure that old TCP connection state is destroyed before attempting to
...
reopen connection. (The TCP API will soon change to render this step
unnecessary.)
2006-12-22 13:04:50 +00:00
a2e3357825
Cannot immediately overwrite the peer address when we parse
...
TargetAddress from the login response, because we still need the old
address while we close the connection!
2006-12-22 12:24:12 +00:00
66a7ed23cb
Make start_timer() and stop_timer() robust against incorrect usage.
2006-12-22 01:35:21 +00:00
d6f9152bfa
Avoid null pointer dereferences when no username/password specified.
2006-12-21 18:38:24 +00:00
6ceb55fad0
When login fails, leave the session open but not in full feature
...
phase. In iscsi_issue(), detect this state and immediately refuse the
operation. This avoids trying multiple logins when scsi.c tries
several times to read the drive capacity.
2006-12-21 17:43:43 +00:00
ab242a760d
Add ability to shut down iSCSI connection
2006-12-21 17:17:47 +00:00
60a3f77711
Close UDP connection when DHCP completes.
2006-12-20 07:19:48 +00:00
a646e38f03
Use stdlib.h for malloc() instead of malloc.h.
2006-12-19 23:42:46 +00:00
04c09823bd
Request all the options that we're prepared to do anything with.
2006-12-12 16:18:20 +00:00
a1af111a87
Also request root-path.
2006-12-08 15:49:46 +00:00
38ae94f8ce
A cleaner method of handling login redirection; just use the existing
...
reconnection mechanism. This avoids the problems of trying to reuse
the TCP connection structure before the old connection has cleanly exited.
2006-12-06 19:53:56 +00:00
5edb85c8b4
Work around another confused-by-RST bug
2006-12-06 18:09:33 +00:00
b9f9230661
Work around another instance of the port re-use bug.
2006-12-05 23:15:35 +00:00
8c3d09c564
Tweaked retry messages
2006-12-05 23:12:54 +00:00
9600af14a3
Added debug messages
2006-12-05 22:53:49 +00:00
cc0b92652f
Call closed() method only when the connection is genuinely in the
...
TCP_CLOSED state (i.e. after the final FIN/ACK exchange), and has been
removed from the list of TCP connections.
2006-12-05 22:53:28 +00:00
fcc70c9d60
Ensure that tcp_rx() always frees its received packet buffer.
2006-12-05 21:23:23 +00:00
28c711b91d
Killed off spurious <stdio.h> inclusion
2006-12-05 21:16:52 +00:00
3fbfbad0f7
Avoid calling NULL methods!
2006-12-05 21:09:37 +00:00
89bcb57201
Update ftp.c to work with Nikhil's TCP stack.
...
Remove the now-totally-obsolete sockaddr_in field from tcp.h.
2006-12-05 19:07:47 +00:00
6842dd3222
Handle TargetAddress
2006-12-05 01:41:32 +00:00
67577556a2
Handle strings as complete units, instead of a byte at a time.
2006-12-05 01:08:56 +00:00
3a7d762c1c
Add iscsi_rx_buffered_data() and supporting infrastructure.
2006-12-05 00:39:05 +00:00
3f0b4d9ed8
Updated to use asynchronous operation model for iSCSI requests
...
Added CHAP authentication
2006-11-28 00:29:02 +00:00
fedc186fd7
Split login into security negotation and operational parameter
...
negotiation phases, to allow inclusion of CHAP authentication.
2006-10-03 09:17:38 +00:00
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
6ac78f6aff
added stdio.h to includes for DBG compilation
2006-09-27 05:57:06 +00:00
0dca1dc8ce
Made eth_ntoa() public for use in legacy drivers' DBG() statements.
2006-09-15 12:34:34 +00:00
095fce14f8
Added extra debugging
2006-08-30 13:39:07 +00:00
cab3f4502b
Correct option number for DHCP_DNS_SERVERS, and add it to the request
...
list.
2006-08-27 01:37:58 +00:00
dccb8358bd
Fixed a bug in the TCP state machine. Added a transition from ESTABLISHED to LAST_ACK on receiving a FIN,ACK
2006-08-19 16:14:53 +00:00
d1d334b8e1
IP6 support
2006-08-19 15:58:22 +00:00
f1e1dfae3d
Added RX tracing as well.
2006-08-16 00:15:40 +00:00
0743dc5b0d
Added some minimal debugging for transmitted PDUs.
2006-08-15 23:56:18 +00:00
562ab6d65c
Bug fixes to the HTTP protocol code
2006-08-12 19:05:08 +00:00
0f88703019
Bug fixes to the HTTP protocol code
2006-08-12 18:54:59 +00:00
db0ff1731f
Fail gracefully when set_dhcp_option() is called with options==NULL.
2006-08-11 18:16:34 +00:00
25ea34a8d7
New HTTP protocol and test code
2006-08-11 14:13:02 +00:00
2497270c14
command->data_{in,out} are now userptr_t, so it is invalid to compare
...
against NULL.
2006-08-10 17:35:14 +00:00
ea5fa82b91
Fixed variable name in assertion
2006-08-10 17:09:48 +00:00
c3a4f3c5da
Towards an RFC2988-compliant timer.
2006-08-09 15:54:17 +00:00
f0718d562f
Don't call stop_timer() from within the timer expiry callback; it's
...
already stopped.
Don't call start_timer() when sending a dataless ACK. This may or may
not be the right thing to do; I can't tell.
Back out broken "send ACK only if required to" logic temporarily.
2006-08-09 15:50:20 +00:00
3aff701001
Changed the TCP state machines behaviour in the ESTABLISHED state
2006-08-09 15:04:26 +00:00
dc8b96b446
Temporarily work around the bug when port numbers are reused between
...
subsequent runs.
2006-08-09 14:44:58 +00:00
09688cb3b5
Correct some packet ownership and freeing bugs.
2006-08-09 14:27:07 +00:00
43d601b678
out_flags was being set but never used.
...
Use just random() to allocate initial sequence numbers; the previous
algorithm ended up with a high probability of zeroing the high word.
2006-08-09 13:35:03 +00:00
065a2a486d
Port the UDP port allocation code to TCP
2006-08-09 12:08:20 +00:00
de0c36a98a
Remove some of the confusion surrounding the amount to strip off from
...
a TCP packet before passing to newdata().
2006-08-09 12:01:09 +00:00
867c7aef59
iphdr->hlen includes the IP header, so truncate packet *before*
...
stripping the header. Also fix an htons/ntohs confusion.
2006-08-09 11:52:53 +00:00
ee9ae8130a
Remove _PROTOCOL macros for gcc 3.2 compatibility
2006-08-09 04:42:14 +00:00
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
a3d508b648
Clarified packet ownership transfer between a few functions.
...
Added a large number of missing calls to free_pkb(). In the case of UDP,
no received packets were ever freed, which lead to memory exhaustion
remarkably quickly once pxelinux started up.
In general, any function with _rx() in its name which accepts a pk_buff
*must* either call free_pkb() or pass the pkb to another _rx() function
(e.g. the next layer up the stack). Since the UDP (and TCP) layers don't
pass packet buffers up to the higher-layer protocols (the
"applications"), they must free the packet buffer after calling the
application's newdata() method.
2006-08-09 01:24:32 +00:00
d1a123b1f4
Added TFTP test code (currently just dumps file to console).
2006-08-09 00:09:29 +00:00
3611cb17b7
Initial (untested) implementation of TFTP over the new UDP API.
2006-08-08 23:45:52 +00:00
409f69a08a
Changed ipv4_dump() to consume only one line.
2006-08-08 22:26:35 +00:00
8bf38fb400
Corrected bugs in the TCP logic. There might be a few more which need to be taken care of.
2006-08-08 22:25:20 +00:00
68e33224ef
gcc3 compatibility: removed ARP_NET_PROTOCOL().
2006-08-08 17:44:25 +00:00
d2bdf81505
Removed some bugs in TCP
2006-08-08 03:42:30 +00:00
cb42e573a0
Added retransmissions to TCP
2006-08-07 18:52:26 +00:00
885a630ddf
Fix routing when a gateway exists. This should probably be split into
...
a separate function.
2006-08-07 17:51:19 +00:00
d0e4f198d6
Add iSCSI to the DHCP tests.
...
Start updating iscsi.c to use Nikhil's TCP API.
2006-08-07 16:48:24 +00:00
6714ec745a
Minor corrections
2006-08-07 07:37:23 +00:00
eb24eece0e
Convert some trivial functions to static inlines.
2006-08-03 23:42:03 +00:00
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
a0a872f7f1
Updated PXE UDP implementation to use the new Etherboot UDP API.
...
Updated PXE API dispatcher to use copy_{to,from}_user, and moved to
arch/i386 since the implementation is quite architecture-dependent.
(The individual PXE API calls can be largely
architecture-independent.)
2006-08-02 23:08:10 +00:00
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
9225f4edac
TCP support
2006-08-01 20:46:50 +00:00
c24546c70b
Minor changes to the network layer rx() functions
2006-08-01 20:27:26 +00:00
beadd82208
Remove unused functions.
2006-08-01 14:26:02 +00:00
1ebb68e49a
Renamed trans_{rx,tx}() to tcpip_{rx,tx}(), since they are specific to
...
the TCP/IP protocol suite (rather than being general transport-layer
functions).
2006-08-01 14:22:04 +00:00
3a0e293123
Renamed tcpip_if.[ch] to tcpip.[ch]
2006-08-01 14:18:09 +00:00
21c3d63c2e
We shouldn't need to allocate a TX packet buffer when calling newdata();
...
if the application wants to send data then it will have to use the normal
senddata() mechanism.
2006-08-01 14:13:58 +00:00
ae277992c2
Request bootfile name; it doesn't seem to be automatically supplied by
...
all servers.
2006-08-01 14:12:27 +00:00
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
b26806cf18
Add dhcp_snprintf() for extracting DHCP string options.
2006-07-20 14:13:11 +00:00
16d04386b6
Switch default stack to Nikhil's TCP/IP stack
2006-07-20 02:53:15 +00:00
e74e20cb55
Remove the static IP address hack from netdevice.c, and change the
...
default test to the DHCP test.
2006-07-20 02:51:52 +00:00
00a1f000b1
Added dhcp_ipv4_option() and friends.
...
Added test code to configure the interface for IPv4 after DHCP.
2006-07-20 02:49:59 +00:00
6a0b4c9772
Free up any allocated options if we fail
2006-07-20 02:25:39 +00:00
764cb41456
Document memory ownership.
2006-07-20 02:23:42 +00:00
7ca1bb0fbe
Now successfully negotiates the whole DHCPDISCOVER/OFFER/REQUEST/ACK
...
cycle. :)
2006-07-20 02:19:06 +00:00
30d9bcdc6e
Rename unwieldy function
2006-07-20 00:24:25 +00:00
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
881b90e82c
Packets without a DHCP_MESSAGE_TYPE option are probably just BOOTP
...
packets.
2006-07-20 00:03:25 +00:00
29b358dd39
conn->local_port is now network-endian; do not swap when comparing
...
against value in header.
Temporarily disable RX checksumming; it's broken and is holding up
work on higher-layer protocols
.
2006-07-20 00:03:01 +00:00
36c94eae78
Clarify hexiness of header length
2006-07-20 00:01:50 +00:00
2c0eb6eb1d
Correct TCP/IP checksum generation.
2006-07-19 23:38:05 +00:00
0768670fd8
udp_open() takes ports in network-endian order.
2006-07-19 21:56:27 +00:00
13dbf5494d
Minor edits
2006-07-19 21:05:58 +00:00
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
a38010fb0e
Make udp_send() call udp_sendto(), rather than vice-versa.
2006-07-19 20:38:49 +00:00
7c84b74185
A small but very critical bug.
2006-07-19 20:16:46 +00:00
82f3295794
Use more standardised format specifiers in debug messages (e.g. %p for
...
a pointer).
2006-07-19 18:45:18 +00:00
ab633f6a73
Reserve space for lower-layer headers when allocating packet buffer.
...
Use pkb_available() rather than pkb_len() (which will always return 0
on a freshly allocated buffer).
udp_send() should assume that the buffer has already been allocated.
2006-07-19 18:21:30 +00:00
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
3369f93036
Add block identification to debug messages
2006-07-19 17:58:27 +00:00
6d9d48537e
Added some debug messages and DHCP test code
2006-07-19 17:49:31 +00:00
317b962b65
Proof of concept: transmit a single DHCPDISCOVER and dump out any
...
parsed DHCP responses.
2006-07-19 17:32:13 +00:00
16fc9858db
Beginnings of DHCP protocol implementation
2006-07-19 17:01:06 +00:00
bf515d3d65
Minor edit in net/udp.c
2006-07-19 16:27:54 +00:00
ab577e1a3a
The following edits were made: \
...
1. Updated UDP send data code\
2. Corrected internet checksum\
3. Moved udp_buffer() and udp_buflen() to udp.c from udp.h
2006-07-19 16:25:23 +00:00
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
e40ebb67de
Allow for calling find_dhcp_option() with "options" set to NULL, in order
...
to search through all registered option blocks.
Move some static inlines that are likely to be used frequently into
dhcpopts.c as normal functions, to save space.
2006-07-19 11:05:38 +00:00
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
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
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
19e8b41562
Add code to modify DHCP option values within a block.
2006-07-13 20:49:04 +00:00
5f651f8622
Added fragment reassembly code
2006-06-30 08:52:03 +00:00
8de630c62b
Removing net/interface.c and include/gpxe/interface.h
2006-06-29 06:51:11 +00:00
51d62d1a3c
Provide a mechanism for returning the encapsulator as well as the
...
encapsulated option; this will be needed for modifications to the options
block.
2006-06-28 18:59:54 +00:00
c9ea710930
Renamed net/interface.c and include/gpxe/interface.h to net/tcpip_if.c and include/gpxe/tcpip_if.h respectively. Made changes in the other files.
2006-06-28 15:43:08 +00:00
291f072b82
Add priority mechanism
2006-06-28 13:48:02 +00:00
bd0c8b21ad
Change dhcp_num_option() to return the numerical value directly.
2006-06-28 12:16:41 +00:00
6e2c97b0c0
Added ipv4_pseudo_header structure
2006-06-28 09:59:27 +00:00
41b399d672
Fixed endianness of 16- and 32- bit values
2006-06-28 09:10:35 +00:00
a6c6b3d739
Fixed whitespaces; updated UDP code
2006-06-28 07:46:28 +00:00
0bcaa8a21f
First stab at DHCP option handling in a way that will allow us to have
...
multiple option sources (e.g. multiple DHCP replies, non-volatile
storage etc.)
2006-06-27 17:24:07 +00:00
35557914e3
Simplify ipv4_tx() by not having a separate "source" variable now that
...
we are constructing the IP header ourselves.
Formatting fix-ups (80 column limit is mandatory!)
2006-06-26 16:10:34 +00:00
b49de73950
Factorise out common code
2006-06-26 16:01:24 +00:00
e517a4771b
Split ipv6 functions out from ipv4.c
2006-06-26 15:33:46 +00:00
e04ea505c9
Whitespace fixes
2006-06-26 13:45:24 +00:00
90fbff8f34
added support for processing and transmitting without uIP
2006-06-25 05:16:54 +00:00
74339b3c6e
updated UDP interface
2006-06-25 05:13:17 +00:00
fdc05e2664
created interface for transport-network interface
2006-06-25 05:12:07 +00:00
3a660f9b25
Update ftp.c and hello.c to use the generic async_operations API.
2006-06-19 15:46:58 +00:00
8637834031
Made the temporary buffer part of the TCP senddata() API, to ease the
...
transition away from uIP.
Prepared ipv4.c for transition away from uIP.
2006-06-17 23:20:54 +00:00
3c8aafa209
Simplify RX data path.
...
Kill off the static single net device and move to proper dynamic
registration (which we need with the new device model).
Break the (flawed) assumption that all network-layer protocols can use
ARP; such network-layer protocols (i.e. IPv4) must now register as an ARP
protocol using ARP_NET_PROTOCOL() and provide a single method for checking
the existence of a local network-layer address.
2006-06-17 22:36:27 +00:00
968501e323
For consistency
2006-06-16 13:17:40 +00:00
bcdcd796fb
32kB window is actually larger than our typical receive ring size.
...
Shrink to 4kB for now. We might want to see if it can be made
genuinely indicative of the RX ring size in the new TCP
implementation.
2006-06-16 13:16:59 +00:00
bbd9e28061
Simplify TX datapath.
2006-06-16 00:19:46 +00:00
d78581297b
Improve tcpdump legibility.
2006-06-01 19:23:52 +00:00
48fb6c6dc2
Updated retry timer mechanism to incorporate smoothed RTT estimation.
...
AoE now uses the retry timer mechanism.
2006-06-01 14:33:52 +00:00
f6d20bb0f4
Put in a method to get the MAC address for the AoE target. (It's not
...
elegant, but it works).
2006-05-31 19:12:17 +00:00
99ef98d0bf
ATA devices are now asynchronous. The ATA layer itself now performs the
...
async_wait(), though we may wish to move this higher up the stack, and
consider making the block device model asynchronous. (There is only a
marginal cost for synchronous devices, since they can simply call
async_done() before returning; async_wait() will work seamlessly in this
situation).
2006-05-31 18:57:11 +00:00
68125bc441
Added generic asynchronous operations code.
...
Removed data_in_len and data_out_len from ata_command structure; the
lengths are implied by the sector count and the presence of the data_in
or data_out pointers.
Changed AoE code to use subcommands by default, and made aoe_issue()
nonblocking (with completion via async_wait()).
2006-05-31 14:34:17 +00:00
552b4a178e
One bit of an ASCII character can make a big difference.
2006-05-29 21:00:00 +00:00
1db1a6dad3
Added first sketch of a generic retry timer mechanism. The idea is to use
...
these timer objects in AoE and UDP protocols (where there is no underlying
retransmission mechanism) without requiring each protocol to implement its
own individual retry logic. Eventually, we should be able to use the same
timer code for TCP retransmissions as well.
2006-05-29 14:55:07 +00:00
6541338897
Handle multi-sector reads by splitting them into subcommands.
2006-05-29 08:25:31 +00:00
9a2a52693d
Initial AoE implementation. Limitations are:
...
Cannot yet handle reads of more than two sectors
No retransmission
No way to find out a target's MAC address (this proof of concept uses
broadcasts)
These limitations shall not last long! :)
2006-05-28 23:29:43 +00:00
f743de4858
Added tcp_kick(). This speed up LILO and GRUB booting by almost two
...
orders of magnitude.
2006-05-27 19:01:20 +00:00
cd3ecac809
Avoid causing TX overflow on small TX queues.
2006-05-27 13:55:36 +00:00
69b1f24a97
I have no idea how this ever worked before.
2006-05-27 13:43:56 +00:00
6c50564724
Make PKB_ZLEN the minimum possible size of packet buffer (to allow for
...
hardware that can't autopad).
2006-05-27 13:39:45 +00:00
1dbafa8950
Tidied up debugging messages
2006-05-27 13:38:49 +00:00
b9cbae58fa
Expert advice tells me that we *do* have to explicitly state the
...
options even when we want to use the defaults.
2006-05-19 17:50:49 +00:00
d48d0fb1bb
Add the concept of a "user pointer" (similar to the void __user * in
...
the kernel), which encapsulates the information needed to refer to an
external buffer. Under normal operation, this can just be a void *
equivalent, but under -DKEEP_IT_REAL it would be a segoff_t equivalent.
Use this concept to avoid the need for bounce buffers in int13.c,
which reduces memory usage and opens up the possibility of using
multi-sector reads.
Extend the block-device API and the SCSI block device implementation
to support multi-sector reads.
Update iscsi.c to use user buffers.
Move the obsolete portions of realmode.h to old_realmode.h.
MS-DOS now boots an order of magnitude faster over iSCSI (~10 seconds
from power-up to C:> prompt in bochs).
2006-05-19 15:06:51 +00:00
c69c1ec540
Documented login parameters that we negotiate.
2006-05-19 00:31:42 +00:00
a280587cde
iSCSI writes seem to be working (at least, the ethereal trace shows no
...
errors; still need to verify data integrity).
SCSI response PDUs are handled: status and sense data (if available) are
returned via the scsi_command structure.
Updated iSCSI session parameter usage.
2006-05-19 00:20:08 +00:00
813a052dc3
Set ErrorRecoveryLevel=0 (we don't want to have to handle it).
2006-05-17 17:41:50 +00:00
f25731d08f
Split "iSCSI as a SCSI device" out from "iSCSI as a TCP protocol".
2006-05-14 23:29:16 +00:00
2421723a15
Rewrote printf and friends to better support standard C semantics.
2006-05-14 02:51:55 +00:00
5009f8d6a2
Provide a SCSI device interface to the iSCSI protocol
2006-05-13 11:39:46 +00:00
2462047128
Typo
2006-04-30 18:19:39 +00:00
9e1becaf8a
Merge TCP aborted(), timedout() and closed() methods into a single
...
closed() method with a reason code.
2006-04-30 16:59:45 +00:00
8afb6303fb
Half-way tidy
2006-04-30 15:23:29 +00:00
04b6a1e004
Make all TCP methods optional; at least FTP data is a read-only
...
connection and so legitimately ignores acked() and senddata().
2006-04-30 13:20:40 +00:00
aec0e127d2
Proof-of-concept FTP implementation
2006-04-30 12:02:07 +00:00
01bd78d62a
Created net/tcp and moved hello.c there
2006-04-30 09:34:11 +00:00
7af478b30d
Make tcp_connect() void; it will eventually have no failure case.
2006-04-30 02:13:52 +00:00
9c9208a132
Put the TCP connection periodic processing in tcp.c, where it belongs.
2006-04-30 02:08:42 +00:00
592a5a99c8
Moved uIP and tcp.c from proto/ to net/
2006-04-30 01:16:37 +00:00
352bf1bda2
Move init.h to gpxe/init.h.
2006-04-30 01:08:52 +00:00
bac97eb979
Change semantics of network API so that packet-absorbing calls *always*
...
take ownership of the packet, rather than doing so only if they return
success. This breaks semantic compatibility with Linux's
hard_start_xmit() method, but means that we don't have to worry so much
about error cases.
Split mechanism of processing received packets (net_rx_process()) out
from policy (net_step()), preparatory to putting net_step() in a separate
object.
2006-04-29 17:17:43 +00:00
129c6c3968
Network layer now works as a proof of concept
2006-04-28 14:13:50 +00:00
1488cd3b73
Fix a couple of broken assertions, and align the buffer correctly.
2006-04-28 14:09:31 +00:00
fee8b91015
D'oh
2006-04-25 12:56:18 +00:00
cf3783b4ca
Actually, it's probably a good idea to have packet buffers avoid 4kB
...
crossings.
2006-04-25 12:11:36 +00:00
00a1de964d
Update to use POSIX-like API.
2006-04-25 12:04:07 +00:00
53f78346bf
Network API now allows for multiple network devices (although the
...
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).
Link-layer protocols are cleanly separated from the device drivers.
Network-layer protocols are cleanly separated from individual network
devices.
Link-layer and network-layer protocols are cleanly separated from each
other.
2006-04-24 15:38:53 +00:00
fdc2ee79db
Network API now allows for multiple network devices (although the
...
implementation allows for only one, and does so without compromising on
the efficiency of static allocation).
Link-layer protocols are cleanly separated from the device drivers.
Network-layer protocols are cleanly separated from individual network
devices.
Link-layer and network-layer protocols are cleanly separated from each
other.
2006-04-24 15:33:06 +00:00
6209bd873a
First sketch of a new net device API.
2006-04-19 12:07:46 +00:00
bdc8190c8d
Remove the concept of the media-independent link-layer header and replace
...
it with metadata in the pkb structure. This is required since UNDI will
want to be able to parse the link-layer header without destroying it.
2006-04-19 11:32:24 +00:00
9f67ad9db0
First version. ARP protocol independence in less than the size of uIP's
...
Ethernet-and-IPv4-only ARP module. :)
2006-04-19 01:43:56 +00:00
Michael Brown