Message ID | 1341966327-16606-2-git-send-email-horms@verge.net.au |
---|---|
State | Superseded |
Headers | show |
On Wed, Jul 11, 2012 at 09:25:26AM +0900, Simon Horman wrote: > From: Julian Anastasov <ja@ssi.bg> > > The FTP application indirectly depends on the > nf_conntrack_ftp helper for proper NAT support. If the > module is not loaded, IPVS can resize the packets for the > command connection, eg. PASV response but the SEQ adjustment > logic in ipv4_confirm is not called without helper. > > Signed-off-by: Julian Anastasov <ja@ssi.bg> > Signed-off-by: Simon Horman <horms@verge.net.au> > --- > net/netfilter/ipvs/Kconfig | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig > index f987138..8b2cffd 100644 > --- a/net/netfilter/ipvs/Kconfig > +++ b/net/netfilter/ipvs/Kconfig > @@ -250,7 +250,8 @@ comment 'IPVS application helper' > > config IP_VS_FTP > tristate "FTP protocol helper" > - depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT > + depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT && \ > + NF_CONNTRACK_FTP If you require FTP NAT support, then this depends on NF_NAT_FTP instead of NF_CONNTRACK_FTP. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hello, On Thu, 12 Jul 2012, Pablo Neira Ayuso wrote: > On Wed, Jul 11, 2012 at 09:25:26AM +0900, Simon Horman wrote: > > From: Julian Anastasov <ja@ssi.bg> > > > > The FTP application indirectly depends on the > > nf_conntrack_ftp helper for proper NAT support. If the > > module is not loaded, IPVS can resize the packets for the > > command connection, eg. PASV response but the SEQ adjustment > > logic in ipv4_confirm is not called without helper. > > > > Signed-off-by: Julian Anastasov <ja@ssi.bg> > > Signed-off-by: Simon Horman <horms@verge.net.au> > > --- > > net/netfilter/ipvs/Kconfig | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig > > index f987138..8b2cffd 100644 > > --- a/net/netfilter/ipvs/Kconfig > > +++ b/net/netfilter/ipvs/Kconfig > > @@ -250,7 +250,8 @@ comment 'IPVS application helper' > > > > config IP_VS_FTP > > tristate "FTP protocol helper" > > - depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT > > + depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT && \ > > + NF_CONNTRACK_FTP > > If you require FTP NAT support, then this depends on NF_NAT_FTP > instead of NF_CONNTRACK_FTP. No, I just checked again, it works without nf_nat_ftp, only nf_nat, nf_conntrack_ftp and iptable_nat are needed. We use packet mangling part from nf_nat (nf_nat_mangle_tcp_packet). Regards -- Julian Anastasov <ja@ssi.bg> -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Thu, Jul 12, 2012 at 10:43:22PM +0300, Julian Anastasov wrote: > > Hello, > > On Thu, 12 Jul 2012, Pablo Neira Ayuso wrote: > > > On Wed, Jul 11, 2012 at 09:25:26AM +0900, Simon Horman wrote: > > > From: Julian Anastasov <ja@ssi.bg> > > > > > > The FTP application indirectly depends on the > > > nf_conntrack_ftp helper for proper NAT support. If the > > > module is not loaded, IPVS can resize the packets for the > > > command connection, eg. PASV response but the SEQ adjustment > > > logic in ipv4_confirm is not called without helper. > > > > > > Signed-off-by: Julian Anastasov <ja@ssi.bg> > > > Signed-off-by: Simon Horman <horms@verge.net.au> > > > --- > > > net/netfilter/ipvs/Kconfig | 3 ++- > > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > > > diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig > > > index f987138..8b2cffd 100644 > > > --- a/net/netfilter/ipvs/Kconfig > > > +++ b/net/netfilter/ipvs/Kconfig > > > @@ -250,7 +250,8 @@ comment 'IPVS application helper' > > > > > > config IP_VS_FTP > > > tristate "FTP protocol helper" > > > - depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT > > > + depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT && \ > > > + NF_CONNTRACK_FTP > > > > If you require FTP NAT support, then this depends on NF_NAT_FTP > > instead of NF_CONNTRACK_FTP. > > No, I just checked again, it works without nf_nat_ftp, > only nf_nat, nf_conntrack_ftp and iptable_nat are needed. > We use packet mangling part from nf_nat (nf_nat_mangle_tcp_packet). Is there a consensus on this? -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Jul 23, 2012 at 03:48:18PM +0900, Simon Horman wrote: > On Thu, Jul 12, 2012 at 10:43:22PM +0300, Julian Anastasov wrote: > > > > Hello, > > > > On Thu, 12 Jul 2012, Pablo Neira Ayuso wrote: > > > > > On Wed, Jul 11, 2012 at 09:25:26AM +0900, Simon Horman wrote: > > > > From: Julian Anastasov <ja@ssi.bg> > > > > > > > > The FTP application indirectly depends on the > > > > nf_conntrack_ftp helper for proper NAT support. If the > > > > module is not loaded, IPVS can resize the packets for the > > > > command connection, eg. PASV response but the SEQ adjustment > > > > logic in ipv4_confirm is not called without helper. > > > > > > > > Signed-off-by: Julian Anastasov <ja@ssi.bg> > > > > Signed-off-by: Simon Horman <horms@verge.net.au> > > > > --- > > > > net/netfilter/ipvs/Kconfig | 3 ++- > > > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > > > > > diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig > > > > index f987138..8b2cffd 100644 > > > > --- a/net/netfilter/ipvs/Kconfig > > > > +++ b/net/netfilter/ipvs/Kconfig > > > > @@ -250,7 +250,8 @@ comment 'IPVS application helper' > > > > > > > > config IP_VS_FTP > > > > tristate "FTP protocol helper" > > > > - depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT > > > > + depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT && \ > > > > + NF_CONNTRACK_FTP > > > > > > If you require FTP NAT support, then this depends on NF_NAT_FTP > > > instead of NF_CONNTRACK_FTP. > > > > No, I just checked again, it works without nf_nat_ftp, > > only nf_nat, nf_conntrack_ftp and iptable_nat are needed. > > We use packet mangling part from nf_nat (nf_nat_mangle_tcp_packet). > > Is there a consensus on this? Fine with me, just wanted to make sure this what you wanted. Thanks Simon. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Jul 23, 2012 at 07:39:06PM +0200, Pablo Neira Ayuso wrote: > On Mon, Jul 23, 2012 at 03:48:18PM +0900, Simon Horman wrote: > > On Thu, Jul 12, 2012 at 10:43:22PM +0300, Julian Anastasov wrote: > > > > > > Hello, > > > > > > On Thu, 12 Jul 2012, Pablo Neira Ayuso wrote: > > > > > > > On Wed, Jul 11, 2012 at 09:25:26AM +0900, Simon Horman wrote: > > > > > From: Julian Anastasov <ja@ssi.bg> > > > > > > > > > > The FTP application indirectly depends on the > > > > > nf_conntrack_ftp helper for proper NAT support. If the > > > > > module is not loaded, IPVS can resize the packets for the > > > > > command connection, eg. PASV response but the SEQ adjustment > > > > > logic in ipv4_confirm is not called without helper. > > > > > > > > > > Signed-off-by: Julian Anastasov <ja@ssi.bg> > > > > > Signed-off-by: Simon Horman <horms@verge.net.au> > > > > > --- > > > > > net/netfilter/ipvs/Kconfig | 3 ++- > > > > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > > > > > > > diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig > > > > > index f987138..8b2cffd 100644 > > > > > --- a/net/netfilter/ipvs/Kconfig > > > > > +++ b/net/netfilter/ipvs/Kconfig > > > > > @@ -250,7 +250,8 @@ comment 'IPVS application helper' > > > > > > > > > > config IP_VS_FTP > > > > > tristate "FTP protocol helper" > > > > > - depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT > > > > > + depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT && \ > > > > > + NF_CONNTRACK_FTP > > > > > > > > If you require FTP NAT support, then this depends on NF_NAT_FTP > > > > instead of NF_CONNTRACK_FTP. > > > > > > No, I just checked again, it works without nf_nat_ftp, > > > only nf_nat, nf_conntrack_ftp and iptable_nat are needed. > > > We use packet mangling part from nf_nat (nf_nat_mangle_tcp_packet). > > > > Is there a consensus on this? > > Fine with me, just wanted to make sure this what you wanted. Thanks > Simon. Thanks. I'll include this in a pull request after rebasing ipvs-next. I plan to do that today. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig index f987138..8b2cffd 100644 --- a/net/netfilter/ipvs/Kconfig +++ b/net/netfilter/ipvs/Kconfig @@ -250,7 +250,8 @@ comment 'IPVS application helper' config IP_VS_FTP tristate "FTP protocol helper" - depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT + depends on IP_VS_PROTO_TCP && NF_CONNTRACK && NF_NAT && \ + NF_CONNTRACK_FTP select IP_VS_NFCT ---help--- FTP is a protocol that transfers IP address and/or port number in