Gerhard Sittig f395e75e27 net: dns: fix for DNS queries sent to the wrong MAC address ... When a DNS query is sent out, the ethernet packet can get directed to the MAC address of a server that was communicated to before. This is wrong when the previously stored MAC address corresponds to a different server's IP address, i.e. when the IP address of the previous and the current communication are different. The error can get reproduced by running a sequence of e.g. a TFTP download and a DNS query, where the TFTP and DNS servers reside on individual machines. The fix is to clear the server's MAC address that might be left from a previous operation, and to fetch the peer's MAC address in a new ARP lookup, before the DNS query is sent. This is the approach taken in other network services, like 8e52533d10 ("net: tftpsrv: Get correct client MAC address"). Reported-by: Dirk Zimoch <dirk.zimoch@psi.ch> Signed-off-by: Gerhard Sittig <gsi@denx.de>		2014-09-16 12:24:00 -04:00
..
arp.c	net/: sparse fixes	2012-11-04 11:00:36 -07:00
arp.h	net: Separate ArpRequest() into lower-level func	2012-05-23 17:53:07 -05:00
bootp.c	net: More BOOTP retry timeout improvements	2014-08-21 12:01:30 -04:00
bootp.h	net: BOOTP retry timeout improvements	2014-08-09 11:17:03 -04:00
cdp.c	net: Refactor to separate the UDP handler from the ARP handler	2012-05-23 17:52:53 -05:00
cdp.h	net: cosmetic: Rename CDPHandler to cdp_receive	2012-05-23 17:46:16 -05:00
dns.c	net: dns: fix for DNS queries sent to the wrong MAC address	2014-09-16 12:24:00 -04:00
dns.h	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
eth.c	Ethernet: let user know if there is no valid ethernet address	2014-07-22 07:44:28 -04:00
link_local.c	net: Correct check for link-local target IP conflict	2013-06-24 19:11:13 -05:00
link_local.h	net: Add link-local addressing support	2012-05-23 17:53:08 -05:00
Makefile	kbuild: use Linux Kernel build scripts	2014-02-19 11:07:50 -05:00
net.c	net: BOOTP retry timeout improvements	2014-08-09 11:17:03 -04:00
net_rand.h	net: use common rand()/srand() functions	2012-07-07 14:07:32 +02:00
nfs.c	net: nfs: add dynamic wait period	2013-06-24 19:10:15 -05:00
nfs.h	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
ping.c	net: Allow filtering on debug traces in the net subsystem	2012-05-23 17:53:08 -05:00
ping.h	net/: sparse fixes	2012-11-04 11:00:36 -07:00
rarp.c	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
rarp.h	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
sntp.c	net: Refactor to separate the UDP handler from the ARP handler	2012-05-23 17:52:53 -05:00
sntp.h	Add GPL-2.0+ SPDX-License-Identifier to source files	2013-07-24 09:44:38 -04:00
tftp.c	net: tftpsrv: Get correct client MAC address	2013-11-22 17:03:18 -06:00
tftp.h	net/: sparse fixes	2012-11-04 11:00:36 -07:00