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185 Commits

Author SHA1 Message Date
David van Moolenbroek
9ba9dee2aa tcp: advance next seq nr for zero window probes 
It is possible that the byte sent as a zero window probe is accepted
and acknowledged by the receiver side without the window being opened.
In that case, the stream has effectively advanced by one byte, and
since lwIP did not take this into account on the sender side, the
result was a desynchronization between the sender and the receiver.
That situation could occur even on a lwIP loopback device, after
filling up the receiver side's receive buffer, and resulted in an ACK
storm. This patch corrects the problem by advancing the sender's next
sequence number by one as needed when sending a zero window probe.
 2016-10-04 22:06:05 +02:00
Axel Lin
198fa5dbfa Remove duplicated include for lwip/inet_chksum.h 
Include it once is enough.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Dirk Ziegelmeier <dirk@ziegelmeier.net>
 2016-08-30 09:47:43 +02:00
goldsimon
4f4d16260f minor: fixed typo 2016-08-19 15:40:36 +02:00
Dirk Ziegelmeier
5c0944e01a Don't document tcp_send_empty_ack and tcp_keepalive - users should never need them 2016-08-09 10:17:16 +02:00
Dirk Ziegelmeier
87855b0e0e Update doxgen docs: PBUF layers, IPv4 and IPv6 functions, add some missing tcp raw API functions 2016-08-06 20:28:49 +02:00
goldsimon
523b11e664 fixed bug #48543 (TCP sent callback may prematurely report sent data when only part of a segment is acked) and don't include SYN/FIN in snd_buf counter (patch by Ambroz Bizjak) 2016-07-21 13:47:52 +02:00
Dirk Ziegelmeier
087ecab891 Add some comments to places where we cast through a void* to get rid of alignment warnings 2016-07-07 21:56:43 +02:00
goldsimon
14ca418ac0 minor: coding style fixes 2016-07-05 07:36:51 +02:00
Dirk Ziegelmeier
102f5882d5 Fix several CLANG format string warnings 2016-06-25 13:06:31 +02:00
Dirk Ziegelmeier
90a656ed78 Fix several doxygen errors all over the code 2016-05-23 21:18:16 +02:00
sg
852d5b9c80 Optimize tcp_output runtime by not calling ip_route() for every segment sent 2016-03-16 22:31:33 +01:00
sg
b4d7238eb8 tcp_output_segment: don't count retransmitted segments in mib2.tcpoutsegs by detecting p->payload != tcphdr pointer; don't try to retransmit segments where p->ref != 1 (as it is invalid to mess up p->len/p->payload when we don't have exclusive access to the pbuf) 2016-03-16 22:22:20 +01:00
sg
5f8b5cbb20 reset rto timer on fast retransmission (see task #13757, patch by Joel Cunningham) 2016-03-16 21:49:37 +01:00
sg
8e8571da6a fixed bug #46384 Segment size calculation bug with MSS != TCP_MSS 2016-03-16 16:56:15 +01:00
Dirk Ziegelmeier
c805843e64 Change signature of ip_output, ip_output_if, ip_output_if_src, ip_output_hinted, ip_route, ip_netif_get_local_ip, ip_route_get_local_ip and tcp_eff_send_mss not to take an isipv6 parameter. Use the IP version of the destination address instead. 2016-02-22 13:38:40 +01:00
Dirk Ziegelmeier
5809b01388 Reduce usage of PCB IP version flag in raw and tcp code. Maybe we can figure out a good way for dual-stack UDP when we manage to remove the flag (nearly) entirely from the code. 2016-02-20 20:40:04 +01:00
Axel Lin
515a4cad73 Clear addr_hint pointer after calling ip_output_if() in tcp_zero_window_probe() 
This was missed in commit aa0e41c389
("task #12178: hardware checksum capabilities can be configured per netif"),
fix it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
 2016-01-29 09:21:58 +01:00
Axel Lin
a93ae2558f tcp_rexmit_rto: Remove superfluous #if TCP_OVERSIZE guard 
TCP_OVERSIZE_DBGCHECK already implies TCP_OVERSIZE is set.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
 2016-01-13 19:07:08 +01:00
Axel Lin
9f3aab6a62 tcp_out: Use LWIP_DBG_LEVEL_SERIOUS instead of hard coded number 
Trivial clean up to avoid using hard coded number.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
 2016-01-11 13:22:51 +01:00
Axel Lin
2562d637cd tcp_out: Use LWIP_DBG_LEVEL_SERIOUS instead of magic number 
Trivial clean up to avoid using magic number.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
 2015-12-06 21:38:12 +01:00
sg
c12fa7b4c4 started to move "private" header files containing implementation details to "lwip/priv/" include directory to seperate the API from the implementation. 2015-10-09 21:58:58 +02:00
goldsimon
65efeec4e9 fixed bug #46145 tcp_send_empty_ack() uses wrong netif with LWIP_HOOK_IP4_ROUTE_SRC (patch by Milan Cermak) 2015-10-07 14:56:25 +02:00
sg
2b971400fa minor: coding style 2015-10-06 21:57:40 +02:00
sg
490581a0eb minor/coding style: removed spaces before line ending 2015-10-06 21:08:28 +02:00
goldsimon
262a641396 eliminate temporary storage when using netif addresses for ip_addr_t* now that they have the correct type (ATTENTION: ip6_select_source_address() and ip4_netif_get_local_ip() now return ip_addr_t*!) 2015-09-24 14:34:24 +02:00
Dirk Ziegelmeier
e00e4a6c13 make netif_ip4_* get accessors return const pointers 2015-09-23 13:19:56 +02:00
sg
6f0dceee09 fixed some printf formatters (mainly for window scaling code) 2015-09-17 21:33:25 +02:00
Sylvain Rochet
4704c9a0ad tcp: fixed CHECKSUM_GEN_TCP feature (misplaced #define) 2015-09-14 14:48:35 +02:00
goldsimon
8a0fb03e21 Separate mib2 counter/table callbacks from snmp agent. This both cleans up the code and should allow integration of a 3rd party agent/mib2. 2015-09-08 09:47:30 +02:00
sg
aa0e41c389 task #12178: hardware checksum capabilities can be configured per netif (use NETIF_SET_CHECKSUM_CTRL() in your netif's init function) 2015-09-01 22:04:15 +02:00
goldsimon
06d8dba4a0 fixed bug #45559: Window scaling casts u32_t to u16_t without checks 2015-08-28 09:23:10 +02:00
Edgar Bonet
fb456e00ac Fix documentation of TCP_WRITE_FLAG_MORE. 
The description of the flag was erroneous in src/core/tcp_out.c, and
self-contradictory in doc/rawapi.txt.
 2015-08-05 21:20:34 +02:00
goldsimon
11f350e63f Fixed ~ warnings in a different way 2015-08-03 09:10:49 +02:00
goldsimon
4dc3c7a6a0 Fixed warnings about NULL check not required (ip_addr_isany) and implicit conversion (~) 2015-08-03 08:35:01 +02:00
Sylvain Rochet
8c1f834a4a fixed bug #39683 Assertion "seg->tcphdr not aligned" failed with MEM_ALIGNMENT 1 or 2 
We used a static 4 instead of MEM_ALIGNMENT earlier, however it broke
things for MEM_ALIGNMENT 1 or 2, fixed using a LWIP_MIN(MEM_ALIGNMENT,
4) statement.
 2015-05-11 11:21:08 +02:00
goldsimon
902d190a11 Many const fixes throughout the stack (although these are not all, yet) 2015-04-22 10:29:43 +02:00
sg
ce7e31cd04 task #12722 (improve IPv4/v6 address handling): renamed ip_addr_t to ip4_addr_t, renamed ipX_addr_t to ip_addr_t and added IP version; 
ip_addr_t is used for all generic IP addresses for the API, ip(4/6)_addr_t are only used internally or when initializing netifs or when calling version-related functions
 2015-04-09 22:21:15 +02:00
goldsimon
5d13b5a2fb fixed bug #37614 "Errors from ipX_output are not processed". Now tcp_output(_segment) checks for the return value of ipX_output and does not try to send more on error. A netif driver can call tcp_txnow() (from tcpip_thread!) to try to send again if TX buffers are available again. 2015-02-17 08:02:34 +01:00
goldsimon
5d74d97fe1 TCP_OVERSIZE: make segment size allocated by TCP_OVERSIZE overridable for tests 2014-12-17 09:32:08 +01:00
goldsimon
db4844e3f0 fixed bug #43840 Checksum error for TCP_CHECKSUM_ON_COPY==1 for no-copy data with odd length 2014-12-17 09:26:17 +01:00
Simon Goldschmidt
085c1594de fixed bug #43192 tcp_enqueue_flags() should not check TCP_SND_QUEUELEN when sending FIN 2014-09-16 20:18:25 +02:00
Simon Goldschmidt
9148ab79f3 fixed bug #37184 tcp_write problem for pcbs in the SYN_SENT state 2014-05-20 22:12:36 +02:00
Simon Goldschmidt
3fceef0936 - fixed bug #36153 TCP Cheksum error if LWIP_CHECKSUM_ON_COPY=1; 
- don't fail on small mss or snd_wnd_max
 2014-03-14 19:46:24 +01:00
Simon Goldschmidt
2225b8add7 fixed bug #39683 Assertion "seg->tcphdr not aligned" failed with MEM_ALIGNMENT = 8 2014-02-20 22:35:37 +01:00
Simon Goldschmidt
8c9b99458d Fixed forgotten brackets in last commit 2014-02-07 12:11:36 +01:00
Simon Goldschmidt
3273c68b63 Added comments to clarify the LWIP_TCP_TIMESTAMPS option. 2014-02-07 11:46:23 +01:00
Simon Goldschmidt
2dab478c3f Merge branch 'master' of git.sv.gnu.org:/srv/git/lwip 
Conflicts:
	src/core/tcp_out.c
	src/include/ipv4/lwip/ip4_addr.h
 2014-02-07 09:40:10 +01:00
Simon Goldschmidt
d2a89b424b patch #6537/#7858: TCP window scaling support (OOS queueing still needs special handling) 2014-02-06 22:34:06 +01:00
Sylvain Rochet
cd02450095 recently applied patches changed LF-terminated filed to mostly LF and CR+LF only where the patches changed lines 2014-01-19 14:28:17 +01:00
Simon Goldschmidt
32b1a9fc8a patch #8237 by Brian Fahs: tcp_rexmit_rto fails to update pcb->unsent_oversize when necessary 2014-01-18 21:40:17 +01:00