dc6c1c294d
convert to zalloc
2007-07-06 20:47:15 +02:00
5de837cc67
Mildly ugly hack to force correct linkage.
2007-06-28 18:06:25 +01:00
95adce0ce1
Add concept of transfer metadata, to be used by UDP in order to
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implement sendto()/recvfrom() equivalents.
2007-06-11 15:04:39 +01:00
3acd51597a
Add sanity check and extra debug message
2007-05-28 20:06:41 +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
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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
1136c19fa4
Updated tcp.c to provide a standardised data transfer interface.
2007-05-25 15:58:42 +00:00
3e2c6b6736
pkbuff->iobuf changeover
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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
3fd10074d8
SSL needs quite a lot of spare memory
2007-02-01 09:38:16 +00:00
6d32f0e6e2
Changed to use the generic stream API.
2007-01-31 02:09:13 +00:00
73b09ecba6
Use stdio.h instead of vsprintf.h
2007-01-19 01:13:12 +00:00
c014f607a8
Use total free memory as advertised window. This seems to be sufficient
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to avoid drops even on slow NICs.
2007-01-18 20:39:17 +00:00
06630a3036
Switch from calloc() to malloc()+memset() to match the practices used
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almost everywhere else.
2007-01-18 12:45:58 +00:00
76aa9ad07d
Make TCP give up immediately when it receives -ENETUNREACH from
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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
526d314266
Advertise a larger MSS to improve TCP performance.
2007-01-13 17:36:17 +00:00
f008b77ba2
Allow an explicit network device to be specified for IP-layer
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transmissions.
2007-01-10 02:25:11 +00:00
18e5353bed
Rename pkb_available() to pkb_tailroom() for consistency with Linux's
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skb_tailroom(). Add pkb_headroom().
2007-01-09 20:56:31 +00:00
2eeb7c4fe7
Define "connected" as
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"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
b0daa99dce
Send RST packets when we get a non-matching connection, or receive an
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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.
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Simplify checksum generation on the TX datapath.
2007-01-03 20:48:52 +00:00
feb4f65d1e
Use auto-colourisation for debug messages.
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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
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"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
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
cc0b92652f
Call closed() method only when the connection is genuinely in the
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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
6ac78f6aff
added stdio.h to includes for DBG compilation
2006-09-27 05:57:06 +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
f0718d562f
Don't call stop_timer() from within the timer expiry callback; it's
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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
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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.
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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
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a TCP packet before passing to newdata().
2006-08-09 12:01:09 +00:00
ee9ae8130a
Remove _PROTOCOL macros for gcc 3.2 compatibility
2006-08-09 04:42:14 +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
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
6714ec745a
Minor corrections
2006-08-07 07:37:23 +00:00
467e9627cc
Added features that will be required for PXE UDP support.
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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
8637834031
Made the temporary buffer part of the TCP senddata() API, to ease the
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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.
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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
bbd9e28061
Simplify TX datapath.
2006-06-16 00:19:46 +00:00
f743de4858
Added tcp_kick(). This speed up LILO and GRUB booting by almost two
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orders of magnitude.
2006-05-27 19:01:20 +00:00
9e1becaf8a
Merge TCP aborted(), timedout() and closed() methods into a single
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closed() method with a reason code.
2006-04-30 16:59:45 +00:00
04b6a1e004
Make all TCP methods optional; at least FTP data is a read-only
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connection and so legitimately ignores acked() and senddata().
2006-04-30 13:20:40 +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
Holger Lubitz