linux/drivers/s390/net/qeth_l3.h
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   1/*
   2 *    Copyright IBM Corp. 2007
   3 *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   4 *               Frank Pavlic <fpavlic@de.ibm.com>,
   5 *               Thomas Spatzier <tspat@de.ibm.com>,
   6 *               Frank Blaschka <frank.blaschka@de.ibm.com>
   7 */
   8
   9#ifndef __QETH_L3_H__
  10#define __QETH_L3_H__
  11
  12#include "qeth_core.h"
  13#include <linux/hashtable.h>
  14
  15#define QETH_SNIFF_AVAIL        0x0008
  16
  17struct qeth_ipaddr {
  18        struct hlist_node hnode;
  19        enum qeth_ip_types type;
  20        enum qeth_ipa_setdelip_flags set_flags;
  21        enum qeth_ipa_setdelip_flags del_flags;
  22        u8 is_multicast:1;
  23        u8 in_progress:1;
  24        u8 disp_flag:2;
  25
  26        /* is changed only for normal ip addresses
  27         * for non-normal addresses it always is  1
  28         */
  29        int  ref_counter;
  30        enum qeth_prot_versions proto;
  31        unsigned char mac[OSA_ADDR_LEN];
  32        union {
  33                struct {
  34                        unsigned int addr;
  35                        unsigned int mask;
  36                } a4;
  37                struct {
  38                        struct in6_addr addr;
  39                        unsigned int pfxlen;
  40                } a6;
  41        } u;
  42
  43};
  44static inline  u64 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr)
  45{
  46        u64  ret = 0;
  47        u8 *point;
  48
  49        if (addr->proto == QETH_PROT_IPV6) {
  50                point = (u8 *) &addr->u.a6.addr;
  51                ret = get_unaligned((u64 *)point) ^
  52                        get_unaligned((u64 *) (point + 8));
  53        }
  54        if (addr->proto == QETH_PROT_IPV4) {
  55                point = (u8 *) &addr->u.a4.addr;
  56                ret = get_unaligned((u32 *) point);
  57        }
  58        return ret;
  59}
  60
  61struct qeth_ipato_entry {
  62        struct list_head entry;
  63        enum qeth_prot_versions proto;
  64        char addr[16];
  65        int mask_bits;
  66};
  67
  68extern const struct attribute_group *qeth_l3_attr_groups[];
  69
  70void qeth_l3_ipaddr_to_string(enum qeth_prot_versions, const __u8 *, char *);
  71int qeth_l3_string_to_ipaddr(const char *, enum qeth_prot_versions, __u8 *);
  72int qeth_l3_create_device_attributes(struct device *);
  73void qeth_l3_remove_device_attributes(struct device *);
  74int qeth_l3_setrouting_v4(struct qeth_card *);
  75int qeth_l3_setrouting_v6(struct qeth_card *);
  76int qeth_l3_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
  77void qeth_l3_del_ipato_entry(struct qeth_card *, enum qeth_prot_versions,
  78                        u8 *, int);
  79int qeth_l3_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  80void qeth_l3_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  81int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  82void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions,
  83                        const u8 *);
  84int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
  85struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions);
  86int qeth_l3_add_ip(struct qeth_card *, struct qeth_ipaddr *);
  87int qeth_l3_delete_ip(struct qeth_card *, struct qeth_ipaddr *);
  88
  89#endif /* __QETH_L3_H__ */
  90