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* xfrm: rename struct xfrm_filterNicolas Dichtel2014-03-071-2/+2
| | | | | | | | | iproute2 already defines a structure with that name, let's use another one to avoid any conflict. CC: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
* ipsec: add support of limited SA dumpNicolas Dichtel2014-02-171-0/+10
| | | | | | | | | | | | | | | | | | | | | The goal of this patch is to allow userland to dump only a part of SA by specifying a filter during the dump. The kernel is in charge to filter SA, this avoids to generate useless netlink traffic (it save also some cpu cycles). This is particularly useful when there is a big number of SA set on the system. Note that I removed the union in struct xfrm_state_walk to fix a problem on arm. struct netlink_callback->args is defined as a array of 6 long and the first long is used in xfrm code to flag the cb as initialized. Hence, we must have: sizeof(struct xfrm_state_walk) <= sizeof(long) * 5. With the union, it was false on arm (sizeof(struct xfrm_state_walk) was sizeof(long) * 7), due to the padding. In fact, whatever the arch is, this union seems useless, there will be always padding after it. Removing it will not increase the size of this struct (and reduce it on arm). Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
* xfrm: allow to avoid copying DSCP during encapsulationNicolas Dichtel2013-03-061-0/+3
| | | | | | | | | | | | | | | | | | | By default, DSCP is copying during encapsulation. Copying the DSCP in IPsec tunneling may be a bit dangerous because packets with different DSCP may get reordered relative to each other in the network and then dropped by the remote IPsec GW if the reordering becomes too big compared to the replay window. It is possible to avoid this copy with netfilter rules, but it's very convenient to be able to configure it for each SA directly. This patch adds a toogle for this purpose. By default, it's not set to maintain backward compatibility. Field flags in struct xfrm_usersa_info is full, hence I add a new attribute. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
* UAPI: (Scripted) Disintegrate include/linuxDavid Howells2012-10-131-0/+506
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
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