linux-toradex.git/include/linux/netlink.h, branch v3.0.89

rtnetlink: Compute and store minimum ifinfo dump size

2013-01-17T16:43:58+00:00

commit c7ac8679bec9397afe8918f788cbcef88c38da54 upstream.

The message size allocated for rtnl ifinfo dumps was limited to
a single page.  This is not enough for additional interface info
available with devices that support SR-IOV and caused a bug in
which VF info would not be displayed if more than approximately
40 VFs were created per interface.

Implement a new function pointer for the rtnl_register service that will
calculate the amount of data required for the ifinfo dump and allocate
enough data to satisfy the request.

Signed-off-by: Greg Rose 
Signed-off-by: Jeff Kirsher 
Cc: Ben Hutchings 
Signed-off-by: Greg Kroah-Hartman

RDMA: Add netlink infrastructure

2011-05-20T18:46:11+00:00

Add basic RDMA netlink infrastructure that allows for registration of
RDMA clients for which data is to be exported and supplies message
construction callbacks.

Signed-off-by: Nir Muchtar 

[ Reorganize a few things, add CONFIG_NET dependency.  - Roland ]

Signed-off-by: Roland Dreier

netlink: kill eff_cap from struct netlink_skb_parms

2011-03-03T21:32:07+00:00

Netlink message processing in the kernel is synchronous these days,
capabilities can be checked directly in security_netlink_recv() from
the current process.

Signed-off-by: Patrick McHardy 
Reviewed-by: James Morris 
[chrisw: update to include pohmelfs and uvesafb]
Signed-off-by: Chris Wright 
Signed-off-by: David S. Miller

netlink: kill loginuid/sessionid/sid members from struct netlink_skb_parms

2011-03-03T18:55:40+00:00

Netlink message processing in the kernel is synchronous these days, the
session information can be collected when needed.

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

netlink: fix gcc -Wconversion compilation warning

2010-12-17T20:03:14+00:00

$ cat << EOF | gcc -Wconversion -xc -S -o/dev/null -
unsigned f(void) {return NLMSG_HDRLEN;}
EOF
: In function 'f':
:3:26: warning: negative integer implicitly converted to unsigned type

Signed-off-by: Dmitry V. Levin 
Signed-off-by: Kirill A. Shutemov 
Signed-off-by: David S. Miller

net: Move "struct net" declaration inside the KERNEL macro guard

2010-09-22T20:21:05+00:00

This patch reduces namespace pollution by moving the "struct net" declaration
out of the userspace-facing portion of linux/netlink.h.  It has no impact on
the kernel.

(This came up because we have several C++ applications which use "net" as a
namespace name.)

Signed-off-by: Ollie Wild 
Signed-off-by: David S. Miller

netlink: Implment netlink_broadcast_filtered

2010-05-21T16:37:32+00:00

When netlink sockets are used to convey data that is in a namespace
we need a way to select a subset of the listening sockets to deliver
the packet to.  For the network namespace we have been doing this
by only transmitting packets in the correct network namespace.

For data belonging to other namespaces netlink_bradcast_filtered
provides a mechanism that allows us to examine the destination
socket and to decide if we should transmit the specified packet
to it.

Signed-off-by: Eric W. Biederman 
Acked-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

netlink: fix NETLINK_RECV_NO_ENOBUFS in netlink_set_err()

2010-03-20T21:29:03+00:00

Currently, ENOBUFS errors are reported to the socket via
netlink_set_err() even if NETLINK_RECV_NO_ENOBUFS is set. However,
that should not happen. This fixes this problem and it changes the
prototype of netlink_set_err() to return the number of sockets that
have set the NETLINK_RECV_NO_ENOBUFS socket option. This return
value is used in the next patch in these bugfix series.

Signed-off-by: Pablo Neira Ayuso 
Signed-off-by: David S. Miller

net: cleanup include/linux

2009-11-04T17:50:58+00:00

This cleanup patch puts struct/union/enum opening braces,
in first line to ease grep games.

struct something
{

becomes :

struct something {

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

genetlink: fix netns vs. netlink table locking (2)

2009-09-24T22:44:05+00:00

Similar to commit d136f1bd366fdb7e747ca7e0218171e7a00a98a5,
there's a bug when unregistering a generic netlink family,
which is caught by the might_sleep() added in that commit:

    BUG: sleeping function called from invalid context at net/netlink/af_netlink.c:183
    in_atomic(): 1, irqs_disabled(): 0, pid: 1510, name: rmmod
    2 locks held by rmmod/1510:
     #0:  (genl_mutex){+.+.+.}, at: [] genl_unregister_family+0x2b/0x130
     #1:  (rcu_read_lock){.+.+..}, at: [] __genl_unregister_mc_group+0x1c/0x120
    Pid: 1510, comm: rmmod Not tainted 2.6.31-wl #444
    Call Trace:
     [] __might_sleep+0x119/0x150
     [] netlink_table_grab+0x21/0x100
     [] netlink_clear_multicast_users+0x23/0x60
     [] __genl_unregister_mc_group+0x71/0x120
     [] genl_unregister_family+0x56/0x130
     [] nl80211_exit+0x15/0x20 [cfg80211]
     [] cfg80211_exit+0x1a/0x40 [cfg80211]

Fix in the same way by grabbing the netlink table lock
before doing rcu_read_lock().

Signed-off-by: Johannes Berg 
Signed-off-by: David S. Miller