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libnetlink: add bridge vlan dump request helper 

Add rtnl bridge vlan dump request helper which will be used to retrieve
bridge vlan information and options.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
This commit is contained in:
Nikolay Aleksandrov 2021-04-18 15:01:35 +03:00 committed by David Ahern
parent 04e2783d5e
commit 34c14bea22
2 changed files with 21 additions and 0 deletions
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2
include/libnetlink.h
View File

@ -69,6 +69,8 @@ int rtnl_neightbldump_req(struct rtnl_handle *rth, int family)
__attribute__((warn_unused_result));
int rtnl_mdbdump_req(struct rtnl_handle *rth, int family)
__attribute__((warn_unused_result));
int rtnl_brvlandump_req(struct rtnl_handle *rth, int family, __u32 dump_flags)
__attribute__((warn_unused_result));
int rtnl_netconfdump_req(struct rtnl_handle *rth, int family)
__attribute__((warn_unused_result));

19
lib/libnetlink.c
View File

@ -450,6 +450,25 @@ int rtnl_mdbdump_req(struct rtnl_handle *rth, int family)
return send(rth->fd, &req, sizeof(req), 0);
}
int rtnl_brvlandump_req(struct rtnl_handle *rth, int family, __u32 dump_flags)
{
struct {
struct nlmsghdr nlh;
struct br_vlan_msg bvm;
char buf[256];
} req = {
.nlh.nlmsg_len = NLMSG_LENGTH(sizeof(struct br_vlan_msg)),
.nlh.nlmsg_type = RTM_GETVLAN,
.nlh.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
.nlh.nlmsg_seq = rth->dump = ++rth->seq,
.bvm.family = family,
};
addattr32(&req.nlh, sizeof(req), BRIDGE_VLANDB_DUMP_FLAGS, dump_flags);
return send(rth->fd, &req, sizeof(req), 0);
}
int rtnl_netconfdump_req(struct rtnl_handle *rth, int family)
{
struct {