user/sven/linux.git/include/linux/inetdevice.h, branch v3.4.40

arp: allow arp processing to honor per interface arp_accept sysctl

2012-03-17T06:00:20Z

I found recently that the arp_process function which handles all of our received arp frames, is using IPV4_DEVCONF_ALL macro to check the state of the arp_process flag. This seems wrong, as it implies that either none or all of the network interfaces accept gratuitous arps. This patch corrects that, allowing per-interface arp_accept configuration to deviate from the all setting. Note this also brings us into line with the way the arp_filter setting is handled during arp_process execution. Tested this myself on my home network, and confirmed it works as expected. Signed-off-by: Neil Horman CC: "David S. Miller" Signed-off-by: David S. Miller

ipv4: Add hash table of interface addresses.

2011-02-18T20:42:28Z

This will be used to optimize __ip_dev_find() and friends. With help from Eric Dumazet. Signed-off-by: David S. Miller

__in_dev_get_rtnl() can use rtnl_dereference()

2010-12-06T20:59:05Z

If caller holds RTNL, we dont need a memory barrier (smp_read_barrier_depends) included in rcu_dereference(). Just use rtnl_dereference() to properly document the assertions. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

inet: Define IPV4_DEVCONF_MAX

2010-11-17T19:28:25Z

Define IPV4_DEVCONF_MAX to get rid of MAX - 1 notation. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller

igmp: RCU conversion of in_dev->mc_list

2010-11-12T21:18:57Z

in_dev->mc_list is protected by one rwlock (in_dev->mc_list_lock). This can easily be converted to a RCU protection. Writers hold RTNL, so mc_list_lock is removed, not replaced by a spinlock. Signed-off-by: Eric Dumazet Cc: Cypher Wu Cc: Américo Wang Signed-off-by: David S. Miller

ipv4: introduce __ip_dev_find()

2010-10-01T04:16:05Z

ip_dev_find(net, addr) finds a device given an IPv4 source address and takes a reference on it. Introduce __ip_dev_find(), taking a third argument, to optionally take the device reference. Callers not asking the reference to be taken should be in an rcu_read_lock() protected section. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

ipv4: ip_ptr cleanups

2010-09-16T05:06:05Z

dev->ip_ptr is protected by rtnl and rcu. Yet some places dont use appropriate primitives and/or locking rules. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

net ipv4: Decouple ipv4 interface parameters from binary sysctl numbers

2010-02-16T23:55:17Z

Stop using the binary sysctl enumeartion in sysctl.h as an index into a per interface array. This leads to unnecessary binary sysctl number allocation, and a fragility in data structure and implementation because of unnecessary coupling. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2010-01-11T06:55:03Z

Conflicts: drivers/net/benet/be_cmds.h include/linux/sysctl.h

net: RFC3069, private VLAN proxy arp support

2010-01-07T08:59:09Z

This is to be used together with switch technologies, like RFC3069, that where the individual ports are not allowed to communicate with each other, but they are allowed to talk to the upstream router. As described in RFC 3069, it is possible to allow these hosts to communicate through the upstream router by proxy_arp'ing. This patch basically allow proxy arp replies back to the same interface (from which the ARP request/solicitation was received). Tunable per device via proc "proxy_arp_pvlan": /proc/sys/net/ipv4/conf/*/proxy_arp_pvlan This switch technology is known by different vendor names: - In RFC 3069 it is called VLAN Aggregation. - Cisco and Allied Telesyn call it Private VLAN. - Hewlett-Packard call it Source-Port filtering or port-isolation. - Ericsson call it MAC-Forced Forwarding (RFC Draft). Signed-off-by: Jesper Dangaard Brouer Signed-off-by: David S. Miller