mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-06 20:53:54 +08:00
d66b1c0df3
Extract a helper that does the actual work & returns the right NOTIFY_* responses, and start putting the temporary ipaddr container objects on the stack rather than kmalloc'ing them. They are small, and this reduces the confusion of which objects actually get added to qeth's IP tables. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
134 lines
3.7 KiB
C
134 lines
3.7 KiB
C
/* 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>
|
|
|
|
#define QETH_SNIFF_AVAIL 0x0008
|
|
|
|
struct qeth_ipaddr {
|
|
struct hlist_node hnode;
|
|
enum qeth_ip_types type;
|
|
enum qeth_ipa_setdelip_flags set_flags;
|
|
enum qeth_ipa_setdelip_flags del_flags;
|
|
u8 is_multicast:1;
|
|
u8 in_progress:1;
|
|
u8 disp_flag:2;
|
|
|
|
/* is changed only for normal ip addresses
|
|
* for non-normal addresses it always is 1
|
|
*/
|
|
int ref_counter;
|
|
enum qeth_prot_versions proto;
|
|
unsigned char mac[ETH_ALEN];
|
|
union {
|
|
struct {
|
|
unsigned int addr;
|
|
unsigned int 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;
|
|
}
|
|
|
|
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:
|
|
* - 'mac' is always 0.
|
|
* - 'mask'/'pfxlen' for RXIP/VIPA is always 0. For NORMAL, matching
|
|
* values are required to avoid mixups in takeover eligibility.
|
|
*
|
|
* For mcast,
|
|
* - 'mac' is mapped from the IP, and thus always matches.
|
|
* - '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 u64 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr)
|
|
{
|
|
u64 ret = 0;
|
|
u8 *point;
|
|
|
|
if (addr->proto == QETH_PROT_IPV6) {
|
|
point = (u8 *) &addr->u.a6.addr;
|
|
ret = get_unaligned((u64 *)point) ^
|
|
get_unaligned((u64 *) (point + 8));
|
|
}
|
|
if (addr->proto == QETH_PROT_IPV4) {
|
|
point = (u8 *) &addr->u.a4.addr;
|
|
ret = get_unaligned((u32 *) point);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
struct qeth_ipato_entry {
|
|
struct list_head entry;
|
|
enum qeth_prot_versions proto;
|
|
char addr[16];
|
|
int mask_bits;
|
|
};
|
|
|
|
extern const struct attribute_group *qeth_l3_attr_groups[];
|
|
|
|
void qeth_l3_ipaddr_to_string(enum qeth_prot_versions, const __u8 *, char *);
|
|
int qeth_l3_create_device_attributes(struct device *);
|
|
void qeth_l3_remove_device_attributes(struct device *);
|
|
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,
|
|
int mask_bits);
|
|
int qeth_l3_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
|
|
int qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
|
|
const u8 *addr);
|
|
int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
|
|
int qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
|
|
const u8 *addr);
|
|
void qeth_l3_update_ipato(struct qeth_card *card);
|
|
struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions);
|
|
int qeth_l3_add_ip(struct qeth_card *, struct qeth_ipaddr *);
|
|
int qeth_l3_delete_ip(struct qeth_card *, struct qeth_ipaddr *);
|
|
|
|
#endif /* __QETH_L3_H__ */
|