/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright IBM Corp . 2007
* Author ( s ) : Utz Bacher < utz . bacher @ de . ibm . com > ,
* Frank Pavlic < fpavlic @ de . ibm . com > ,
* Thomas Spatzier < tspat @ de . ibm . com > ,
* Frank Blaschka < frank . blaschka @ de . ibm . com >
*/
#ifndef __QETH_L3_H__
#define __QETH_L3_H__
#include "qeth_core.h"
#include <linux/hashtable.h>
enum qeth_ip_types {
QETH_IP_TYPE_NORMAL,
QETH_IP_TYPE_VIPA,
QETH_IP_TYPE_RXIP,
};
struct qeth_ipaddr {
struct hlist_node hnode;
enum qeth_ip_types type;
u8 is_multicast:1 ;
u8 disp_flag:2 ;
u8 ipato:1 ; /* ucast only */
/* is changed only for normal ip addresses
* for non - normal addresses it always is 1
*/
int ref_counter;
enum qeth_prot_versions proto;
union {
struct {
__be32 addr;
__be32 mask;
} a4;
struct {
struct in6_addr addr;
unsigned int pfxlen;
} a6;
} u;
};
static inline void qeth_l3_init_ipaddr(struct qeth_ipaddr *addr,
enum qeth_ip_types type,
enum qeth_prot_versions proto)
{
memset(addr, 0 , sizeof (*addr));
addr->type = type;
addr->proto = proto;
addr->disp_flag = QETH_DISP_ADDR_DO_NOTHING;
addr->ref_counter = 1 ;
}
static inline bool qeth_l3_addr_match_ip(struct qeth_ipaddr *a1,
struct qeth_ipaddr *a2)
{
if (a1->proto != a2->proto)
return false ;
if (a1->proto == QETH_PROT_IPV6)
return ipv6_addr_equal(&a1->u.a6.addr, &a2->u.a6.addr);
return a1->u.a4.addr == a2->u.a4.addr;
}
static inline bool qeth_l3_addr_match_all(struct qeth_ipaddr *a1,
struct qeth_ipaddr *a2)
{
/* Assumes that the pair was obtained via qeth_l3_addr_find_by_ip(),
* so ' proto ' and ' addr ' match for sure .
*
* For ucast :
* - ' mask ' / ' pfxlen ' for RXIP / VIPA is always 0 . For NORMAL , matching
* values are required to avoid mixups in takeover eligibility .
*
* For mcast ,
* - ' mask ' / ' pfxlen ' is always 0 .
*/
if (a1->type != a2->type)
return false ;
if (a1->proto == QETH_PROT_IPV6)
return a1->u.a6.pfxlen == a2->u.a6.pfxlen;
return a1->u.a4.mask == a2->u.a4.mask;
}
static inline u32 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr)
{
if (addr->proto == QETH_PROT_IPV6)
return ipv6_addr_hash(&addr->u.a6.addr);
else
return ipv4_addr_hash(addr->u.a4.addr);
}
struct qeth_ipato_entry {
struct list_head entry;
enum qeth_prot_versions proto;
char addr[16 ];
unsigned int mask_bits;
};
extern const struct attribute_group *qeth_l3_attr_groups[];
int qeth_l3_ipaddr_to_string(enum qeth_prot_versions proto, const u8 *addr,
char *buf);
int qeth_l3_setrouting_v4(struct qeth_card *);
int qeth_l3_setrouting_v6(struct qeth_card *);
int qeth_l3_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
int qeth_l3_del_ipato_entry(struct qeth_card *card,
enum qeth_prot_versions proto, u8 *addr,
unsigned int mask_bits);
void qeth_l3_update_ipato(struct qeth_card *card);
int qeth_l3_modify_hsuid(struct qeth_card *card, bool add);
int qeth_l3_modify_rxip_vipa(struct qeth_card *card, bool add, const u8 *ip,
enum qeth_ip_types type,
enum qeth_prot_versions proto);
#endif /* __QETH_L3_H__ */
Messung V0.5 in Prozent C=92 H=94 G=92
¤ Dauer der Verarbeitung: 0.3 Sekunden
¤
*© Formatika GbR, Deutschland