kernel/git/stable/linux-stable.git/net/netlink, branch linux-2.6.15.y

[PATCH] Fix a severe bug

2006-03-01T22:36:37+00:00

netlink overrun was broken while improvement of netlink. Destination socket is used in the place where it was meant to be source socket, so that now overrun is never sent to user netlink sockets, when it should be, and it even can be set on kernel socket, which results in complete deadlock of rtnetlink. Suggested fix is to restore status quo passing source socket as additional argument to netlink_attachskb(). A little explanation: overrun is set on a socket, when it failed to receive some message and sender of this messages does not or even have no way to handle this error. This happens in two cases: 1. when kernel sends something. Kernel never retransmits and cannot wait for buffer space. 2. when user sends a broadcast and the message was not delivered to some recipients. Signed-off-by: Alexey Kuznetsov Signed-off-by: David S. Miller Signed-off-by: Chris Wright

[PATCH] Fix DoS in netlink_rcv_skb() (CVE-2006-0035)

2006-01-15T06:15:30+00:00

Sanity check nlmsg_len during netlink_rcv_skb. An nlmsg_len == 0 can cause infinite loop in kernel, effectively DoSing machine. Noted by Martin Murray. Signed-off-by: Chris Wright Signed-off-by: David S. Miller

[PATCH] netlink oops fix due to incorrect error code

2006-01-15T06:15:29+00:00

Fixed oops after failed netlink socket creation. Wrong parathenses in if() statement caused err to be 1, instead of negative value. Trivial fix, not trivial to find though. Signed-Off-By: Dmitry Mishin Signed-Off-By: Kirill Korotaev Signed-off-by: Chris Wright

[NETLINK]: Use tgid instead of pid for nlmsg_pid

2005-11-22T22:41:50+00:00

Signed-off-by: Herbert Xu 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

[NETLINK]: Generic netlink receive queue processor

2005-11-10T01:26:40+00:00

Introduces netlink_run_queue() to handle the receive queue of a netlink socket in a generic way. Processes as much as there was in the queue upon entry and invokes a callback function for each netlink message found. The callback function may refuse a message by returning a negative error code but setting the error pointer to 0 in which case netlink_run_queue() will return with a qlen != 0. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller

[NETLINK]: Make netlink_callback->done() optional

2005-11-10T01:26:40+00:00

Most netlink families make no use of the done() callback, making it optional gets rid of all unnecessary dummy implementations. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller

[NETLINK]: Type-safe netlink messages/attributes interface

2005-11-10T01:26:40+00:00

Introduces a new type-safe interface for netlink message and attributes handling. The interface is fully binary compatible with the old interface towards userspace. Besides type safety, this interface features attribute validation capabilities, simplified message contstruction, and documentation. The resulting netlink code should be smaller, less error prone and easier to understand. Signed-off-by: Thomas Graf Signed-off-by: David S. Miller

Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6.15

2005-10-28T15:50:37+00:00

[PATCH] gfp_t: net/*

2005-10-28T15:16:47+00:00

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