hashlimit does:
if (!ht->rnd)
get_random_bytes(&ht->rnd, 4);
ignoring that 0 is also a valid random number.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
create_proc_entry must not be called with locks held. Use a mutex
instead to protect data only changed in user context.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a secmark field to IP and NF conntracks, so that security markings
on packets can be copied to their associated connections, and also
copied back to packets as required. This is similar to the network
mark field currently used with conntrack, although it is intended for
enforcement of security policy rather than network policy.
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a secmark field to the skbuff structure, to allow security subsystems to
place security markings on network packets. This is similar to the nfmark
field, except is intended for implementing security policy, rather than than
networking policy.
This patch was already acked in principle by Dave Miller.
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add SIP connection tracking helper. Originally written by
Christian Hentschel <chentschel@arnet.com.ar>, some cleanup, minor
fixes and bidirectional SIP support added by myself.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Call Forwarding doesn't need to create an expectation if both peers can
reach each other without our help. The internal_net_addr parameter
lets the user explicitly specify a single network where this is true,
but is not very flexible and even fails in the common case that calls
will both be forwarded to outside parties and inside parties. Use an
optional heuristic based on routing instead, the assumption is that
if bpth the outgoing device and the gateway are equal, both peers can
reach each other directly.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a port number within a packet is replaced by a differently sized
number only the packet is resized, but not the copy of the data.
Following port numbers are rewritten based on their offsets within
the copy, leading to packet corruption.
Convert the amanda helper to the textsearch infrastructure to avoid
the copy entirely.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of skipping search entries for the wrong direction simply index
them by direction.
Based on patch by Pablo Neira <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of using the ID to find out where to continue dumping, take a
reference to the last entry dumped and try to continue there.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current configuration only allows to configure one manip and overloads
conntrack status flags with netlink semantic.
Signed-off-by: Patrick Mchardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a flag in a connection status to have a non updated timeout.
This permits to have connection that automatically die at a given
time.
Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
None of the existing helpers expects to get called for related ICMP
packets and some even drop them if they can't parse them.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace the unmaintainable ipt_recent match by a rewritten version that
should be fully compatible.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
It appears that sockaddr_in.sin_zero is not zeroed during
getsockopt(...SO_ORIGINAL_DST...) operation. This can lead
to an information leak (CVE-2006-1343).
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
If kmalloc fails, error path leaks data allocated from asn1_oid_decode().
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
When parsing unknown sequence extensions the "son"-pointer points behind
the last known extension for this type, don't try to interpret it.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
