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batman-adv: add multicast flags netlink support

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Dump the list of multicast flags entries via the netlink socket.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Linus Lüssing
2018-03-13 11:41:13 +01:00
committed by Simon Wunderlich
parent 41aeefcc38
commit 53dd9a68ba
4 changed files with 329 additions and 0 deletions
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62
include/uapi/linux/batman_adv.h
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@@ -91,6 +91,53 @@ enum batadv_tt_client_flags {
BATADV_TT_CLIENT_TEMP = (1 << 11),
};
/**
* enum batadv_mcast_flags_priv - Private, own multicast flags
*
* These are internal, multicast related flags. Currently they describe certain
* multicast related attributes of the segment this originator bridges into the
* mesh.
*
* Those attributes are used to determine the public multicast flags this
* originator is going to announce via TT.
*
* For netlink, if BATADV_MCAST_FLAGS_BRIDGED is unset then all querier
* related flags are undefined.
*/
enum batadv_mcast_flags_priv {
/**
* @BATADV_MCAST_FLAGS_BRIDGED: There is a bridge on top of the mesh
* interface.
*/
BATADV_MCAST_FLAGS_BRIDGED = (1 << 0),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS: Whether an IGMP querier
* exists in the mesh
*/
BATADV_MCAST_FLAGS_QUERIER_IPV4_EXISTS = (1 << 1),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS: Whether an MLD querier
* exists in the mesh
*/
BATADV_MCAST_FLAGS_QUERIER_IPV6_EXISTS = (1 << 2),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING: If an IGMP querier
* exists, whether it is potentially shadowing multicast listeners
* (i.e. querier is behind our own bridge segment)
*/
BATADV_MCAST_FLAGS_QUERIER_IPV4_SHADOWING = (1 << 3),
/**
* @BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING: If an MLD querier
* exists, whether it is potentially shadowing multicast listeners
* (i.e. querier is behind our own bridge segment)
*/
BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING = (1 << 4),
};
/**
* enum batadv_nl_attrs - batman-adv netlink attributes
*/
@@ -287,6 +334,16 @@ enum batadv_nl_attrs {
*/
BATADV_ATTR_DAT_CACHE_VID,
/**
* @BATADV_ATTR_MCAST_FLAGS: Per originator multicast flags
*/
BATADV_ATTR_MCAST_FLAGS,
/**
* @BATADV_ATTR_MCAST_FLAGS_PRIV: Private, own multicast flags
*/
BATADV_ATTR_MCAST_FLAGS_PRIV,
/* add attributes above here, update the policy in netlink.c */
/**
@@ -381,6 +438,11 @@ enum batadv_nl_commands {
*/
BATADV_CMD_GET_DAT_CACHE,
/**
* @BATADV_CMD_GET_MCAST_FLAGS: Query list of multicast flags
*/
BATADV_CMD_GET_MCAST_FLAGS,
/* add new commands above here */
/**