linux-toradex.git/include/net/genetlink.h, branch v2.6.19.2

[PATCH] Add genetlink utilities for payload length calculation

2006-10-01T07:39:29+00:00

Add two utility helper functions genlmsg_msg_size() and genlmsg_total_size().
These functions are derived from their netlink counterparts.

Signed-off-by: Balbir Singh 
Cc: Jamal Hadi 
Cc: Shailabh Nagar 
Cc: Thomas Graf 
Cc: "David S. Miller" 
Cc: Jay Lan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[GENL]: Provide more information to userspace about registered genl families

2006-09-22T22:18:51+00:00

Additionaly exports the following information when providing
the list of registered generic netlink families:
  - protocol version
  - header size
  - maximum number of attributes
  - list of available operations including
      - id
      - flags
      - avaiability of policy and doit/dumpit function

libnl HEAD provides a utility to read this new information:

	0x0010 nlctrl version 1
	    hdrsize 0 maxattr 6
	      op GETFAMILY (0x03) [POLICY,DOIT,DUMPIT]
	0x0011 NLBL_MGMT version 1
	    hdrsize 0 maxattr 0
	      op unknown (0x02) [DOIT]
	      op unknown (0x03) [DOIT]
	      ....

Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller

[NETLINK]: Add notification message sending interface

2006-09-22T21:54:49+00:00

Adds nlmsg_notify() implementing proper notification logic. The
message is multicasted to all listeners in the group. The
applications the requests orignates from can request a unicast
back report in which case said socket will be excluded from the
multicast to avoid duplicated notifications.

nlmsg_multicast() is extended to take allocation flags to
allow notification in atomic contexts.

Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller

[PATCH] per-task-delay-accounting: utilities for genetlink usage

2006-07-15T04:53:56+00:00

Two utilities for simplifying usage of NETLINK_GENERIC interface.

Signed-off-by: Balbir Singh 
Signed-off-by: Shailabh Nagar 
Cc: Jes Sorensen 
Cc: Peter Chubb 
Cc: Erich Focht 
Cc: Levent Serinol 
Cc: Jay Lan 
Cc: "David S. Miller" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] genetlink: don't touch module ref count

2006-01-13T21:06:40+00:00

Increasing the module ref count at registration will block the module from
ever being unloaded. In fact, genetlink should not care about the owner at
all. This patch removes the owner field from the struct registered with
genetlink.

Signed-off-by: Per Liden 
Signed-off-by: Jamal Hadi Salim 
Signed-off-by: David S. Miller

[NETLINK] genetlink: fix cmd type in genl_ops to be consistent to u8

2006-01-03T22:13:29+00:00

Signed-off-by: Per Liden 
ACKed-by: Jamal Hadi Salim 
Signed-off-by: David S. Miller

[NETLINK]: Generic netlink family

2005-11-10T01:26:41+00:00

The generic netlink family builds on top of netlink and provides
simplifies access for the less demanding netlink users. It solves
the problem of protocol numbers running out by introducing a so
called controller taking care of id management and name resolving.

Generic netlink modules register themself after filling out their
id card (struct genl_family), after successful registration the
modules are able to register callbacks to command numbers by
filling out a struct genl_ops and calling genl_register_op(). The
registered callbacks are invoked with attributes parsed making
life of simple modules a lot easier.

Although generic netlink modules can request static identifiers,
it is recommended to use GENL_ID_GENERATE and to let the controller
assign a unique identifier to the module. Userspace applications
will then ask the controller and lookup the idenfier by the module
name.

Due to the current multicast implementation of netlink, the number
of generic netlink modules is restricted to 1024 to avoid wasting
memory for the per socket multiacst subscription bitmask.

Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller