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#include <linux/if.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/netdevice.h>
#include <linux/in.h>
#include <linux/types.h>
#include <linux/skbuff.h>
#include <net/flow_keys.h>
#include "enic_res.h"
#include "enic_clsf.h"
/* enic_addfltr_5t - Add ipv4 5tuple filter
* @enic: enic struct of vnic
* @keys: flow_keys of ipv4 5tuple
* @rq: rq number to steer to
*
* This function returns filter_id(hardware_id) of the filter
* added. In case of error it returns an negative number.
*/
int enic_addfltr_5t(struct enic *enic, struct flow_keys *keys, u16 rq)
{
int res;
struct filter data;
switch (keys->ip_proto) {
case IPPROTO_TCP:
data.u.ipv4.protocol = PROTO_TCP;
break;
case IPPROTO_UDP:
data.u.ipv4.protocol = PROTO_UDP;
break;
default:
return -EPROTONOSUPPORT;
};
data.type = FILTER_IPV4_5TUPLE;
data.u.ipv4.src_addr = ntohl(keys->src);
data.u.ipv4.dst_addr = ntohl(keys->dst);
data.u.ipv4.src_port = ntohs(keys->port16[0]);
data.u.ipv4.dst_port = ntohs(keys->port16[1]);
data.u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE;
spin_lock_bh(&enic->devcmd_lock);
res = vnic_dev_classifier(enic->vdev, CLSF_ADD, &rq, &data);
spin_unlock_bh(&enic->devcmd_lock);
res = (res == 0) ? rq : res;
return res;
}
/* enic_delfltr - Delete clsf filter
* @enic: enic struct of vnic
* @filter_id: filter_is(hardware_id) of filter to be deleted
*
* This function returns zero in case of success, negative number incase of
* error.
*/
int enic_delfltr(struct enic *enic, u16 filter_id)
{
int ret;
spin_lock_bh(&enic->devcmd_lock);
ret = vnic_dev_classifier(enic->vdev, CLSF_DEL, &filter_id, NULL);
spin_unlock_bh(&enic->devcmd_lock);
return ret;
}
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