linux.git/net/netlink, branch v2.6.14

[PATCH] gfp flags annotations - part 1

2005-10-08T22:00:57+00:00

 - added typedef unsigned int __nocast gfp_t;

 - replaced __nocast uses for gfp flags with gfp_t - it gives exactly
   the same warnings as far as sparse is concerned, doesn't change
   generated code (from gcc point of view we replaced unsigned int with
   typedef) and documents what's going on far better.

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[NETLINK]: Don't prevent creating sockets when no kernel socket is registered

2005-09-06T22:43:59+00:00

This broke the pam audit module which includes an incorrect check for
-ENOENT instead of -EPROTONOTSUPP.

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

[NETLINK]: Fix sparse warnings

2005-08-29T23:01:35+00:00

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[NETLINK]: Add "groups" argument to netlink_kernel_create

2005-08-29T23:01:11+00:00

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

[NETLINK]: Add set/getsockopt options to support more than 32 groups

2005-08-29T23:01:07+00:00

NETLINK_ADD_MEMBERSHIP/NETLINK_DROP_MEMBERSHIP are used to join/leave
groups, NETLINK_PKTINFO is used to enable nl_pktinfo control messages
for received packets to get the extended destination group number.

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

[NETLINK]: Support dynamic number of multicast groups per netlink family

2005-08-29T23:01:02+00:00

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

[NETLINK]: Return -EPROTONOSUPPORT in netlink_create() if no kernel socket is registered

2005-08-29T23:00:58+00:00

This is necessary for dynamic number of netlink groups to make sure we know
the number of possible groups before bind() is called. With this change pure
userspace communication using unused netlink protocols becomes impossible.

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

[NETLINK]: Use group numbers instead of bitmasks internally

2005-08-29T23:00:49+00:00

Using the group number allows increasing the number of groups without
beeing limited by the size of the bitmask. It introduces one limitation
for netlink users: messages can't be broadcasted to multiple groups anymore,
however this feature was never used inside the kernel.

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

[NETLINK]: Fix module refcounting problems

2005-08-29T23:00:45+00:00

Use-after-free: the struct proto_ops containing the module pointer
is freed when a socket with pid=0 is released, which besides for kernel
sockets is true for all unbound sockets.

Module refcount leak: when the kernel socket is closed before all user
sockets have been closed the proto_ops struct for this family is
replaced by the generic one and the module refcount can't be dropped.

The second problem can't be solved cleanly using module refcounting in the
generic socket code, so this patch adds explicit refcounting to
netlink_create/netlink_release.

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

[NETLINK]: Remove unused groups member from struct netlink_skb_parms

2005-08-29T23:00:39+00:00

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