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/*
* Zebra Traffic Control (TC) interaction with the kernel using netlink.
*
* Copyright (C) 2022 Shichu Yang
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _ZEBRA_TC_NETLINK_H
#define _ZEBRA_TC_NETLINK_H
#ifdef HAVE_NETLINK
#ifdef __cplusplus
extern "C" {
#endif
/* Represent a prefixed address in flower filter */
struct inet_prefix {
uint16_t flags;
uint16_t bytelen;
uint16_t bitlen;
uint16_t family;
uint32_t data[64];
};
enum {
PREFIXLEN_SPECIFIED = (1 << 0),
ADDRTYPE_INET = (1 << 1),
ADDRTYPE_UNSPEC = (1 << 2),
ADDRTYPE_MULTI = (1 << 3),
ADDRTYPE_INET_UNSPEC = ADDRTYPE_INET | ADDRTYPE_UNSPEC,
ADDRTYPE_INET_MULTI = ADDRTYPE_INET | ADDRTYPE_MULTI
};
extern enum netlink_msg_status
netlink_put_tc_qdisc_update_msg(struct nl_batch *bth,
struct zebra_dplane_ctx *ctx);
extern enum netlink_msg_status
netlink_put_tc_class_update_msg(struct nl_batch *bth,
struct zebra_dplane_ctx *ctx);
extern enum netlink_msg_status
netlink_put_tc_filter_update_msg(struct nl_batch *bth,
struct zebra_dplane_ctx *ctx);
/**
* "filter" & "class" in the following become "tfilter" & "tclass" for
* the sake of consistency with kernel message types (RTM_NEWTFILTER etc.)
*/
extern int netlink_qdisc_read(struct zebra_ns *zns);
extern int netlink_tfilter_read_for_interface(struct zebra_ns *zns,
ifindex_t ifindex);
extern int netlink_tfilter_change(struct nlmsghdr *h, ns_id_t ns_id,
int startup);
extern int netlink_tclass_change(struct nlmsghdr *h, ns_id_t ns_id,
int startup);
extern int netlink_qdisc_change(struct nlmsghdr *h, ns_id_t ns_id, int startup);
#ifdef __cplusplus
}
#endif
#endif /* HAVE_NETLINK */
#endif /* _ZEBRA_TC_NETLINK_H */
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