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path: root/net/ipv4/netfilter/ip_nat_helper_pptp.c
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2007-04-25[NETFILTER]: Remove IPv4 only connection tracking/NATPatrick McHardy1-350/+0
Remove the obsolete IPv4 only connection tracking/NAT as scheduled in feature-removal-schedule. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-10[NET] IPV4: Fix whitespace errors.YOSHIFUJI Hideaki1-5/+5
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: ip_conntrack: fix NAT helper unload racesPatrick McHardy1-14/+13
The NAT helpr hooks are protected by RCU, but all of the conntrack helpers test and use the global pointers instead of copying them first using rcu_dereference() Also replace synchronize_net() by synchronize_rcu() for clarity since sychronizing only with packet receive processing is insufficient to prevent races. Signed-off-by: Patrick McHardy <kaber@trash.net>
2006-12-02[NETFILTER]: conntrack: add '_get' to {ip, nf}_conntrack_expect_findYasuyuki Kozakai1-1/+1
We usually uses 'xxx_find_get' for function which increments reference count. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net>
2006-09-28[NETFILTER]: NAT annotationsAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NETFILTER]: PPTP conntrack: fix PPTP_IN_CALL message typesPatrick McHardy1-1/+1
Fix incorrectly used message types and call IDs: - PPTP_IN_CALL_REQUEST (PAC->PNS) contains a PptpInCallRequest (icreq) message and the PAC call ID - PPTP_IN_CALL_REPLY (PNS->PAC) contains a PptpInCallReply (icack) message and the PNS call ID Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NETFILTER]: PPTP conntrack: simplify expectation handlingPatrick McHardy1-55/+3
Remove duplicated expectation handling in the NAT helper and simplify the remains in the conntrack helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NETFILTER]: PPTP conntrack: remove dead codePatrick McHardy1-14/+2
The call ID in reply packets is never changed, remove the code. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NETFILTER]: PPTP conntrack: get rid of unnecessary byte order conversionsPatrick McHardy1-21/+21
The conntrack structure contains the call ID in host byte order for no reason, get rid of back and forth conversions. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NETFILTER]: PPTP conntrack: fix whitespace errorsPatrick McHardy1-46/+46
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-28[NETFILTER]: Rename init functions.Andrew Morton1-4/+4
Every netfilter module uses `init' for its module_init() function and `fini' or `cleanup' for its module_exit() function. Problem is, this creates uninformative initcall_debug output and makes ctags rather useless. So go through and rename them all to $(filename)_init and $(filename)_fini. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NETFILTER]: Fix CID offset bug in PPTP NAT helper debug messageHolger Eitzenberger1-3/+5
The recent (kernel 2.6.15.1) fix for PPTP NAT helper introduced a bug - which only appears if DEBUGP is enabled though. The calculation of the CID offset into a PPTP request struct is not correct, so that at least not the correct CID is displayed if DEBUGP is enabled. This patch corrects CID offset calculation and introduces a #define for that. Signed-off-by: Holger Eitzenberger <heitzenberger@astaro.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-10[NETFILTER]: Fix return value confusion in PPTP NAT helperPatrick McHardy1-23/+13
ip_nat_mangle_tcp_packet doesn't return NF_* values but 0/1 for failure/success. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-10[NETFILTER]: Fix another crash in ip_nat_pptpPatrick McHardy1-30/+27
The PPTP NAT helper calculates the offset at which the packet needs to be mangled as difference between two pointers to the header. With non-linear skbs however the pointers may point to two seperate buffers on the stack and the calculation results in a wrong offset beeing used. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-10[NETFILTER]: Fix crash in ip_nat_pptpPatrick McHardy1-1/+1
When an inbound PPTP_IN_CALL_REQUEST packet is received the PPTP NAT helper uses a NULL pointer in pointer arithmentic to calculate the offset in the packet which needs to be mangled and corrupts random memory or crashes. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09[NETFILTER] PPTP helper: fix PNS-PAC expectation call idPhilip Craig1-2/+26
The reply tuple of the PNS->PAC expectation was using the wrong call id. So we had the following situation: - PNS behind NAT firewall - PNS call id requires NATing - PNS->PAC gre packet arrives first then the PNS->PAC expectation is matched, and the other expectation is deleted, but the PAC->PNS gre packets do not match the gre conntrack because the call id is wrong. We also cannot use ip_nat_follow_master(). Signed-off-by: Philip Craig <philipc@snapgear.com> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-04[NETFILTER] PPTP helper: Fix compilation of conntrack helper without NATHarald Welte1-0/+2
This patch fixes compilation of the PPTP conntrack helper when NAT is configured off. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-09-19[NETFILTER]: Add new PPTP conntrack and NAT helperHarald Welte1-0/+401
This new "version 3" PPTP conntrack/nat helper is finally ready for mainline inclusion. Special thanks to lots of last-minute bugfixing by Patric McHardy. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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