drivers/s390/net/qeth_l3.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *    Copyright IBM Corp. 2007
   4  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   5  *               Frank Pavlic <fpavlic@de.ibm.com>,
   6  *               Thomas Spatzier <tspat@de.ibm.com>,
   7  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   8  */
   9
  10 #ifndef __QETH_L3_H__
  11 #define __QETH_L3_H__
  12
  13 #include "qeth_core.h"
  14 #include <linux/hashtable.h>
  15
  16 #define QETH_SNIFF_AVAIL        0x0008
  17
  18 struct qeth_ipaddr {
  19         struct hlist_node hnode;
  20         enum qeth_ip_types type;
  21         enum qeth_ipa_setdelip_flags set_flags;
  22         enum qeth_ipa_setdelip_flags del_flags;
  23         u8 is_multicast:1;
  24         u8 in_progress:1;
  25         u8 disp_flag:2;
  26
  27         /* is changed only for normal ip addresses
  28          * for non-normal addresses it always is  1
  29          */
  30         int  ref_counter;
  31         enum qeth_prot_versions proto;
  32         unsigned char mac[ETH_ALEN];
  33         union {
  34                 struct {
  35                         unsigned int addr;
  36                         unsigned int mask;
  37                 } a4;
  38                 struct {
  39                         struct in6_addr addr;
  40                         unsigned int pfxlen;
  41                 } a6;
  42         } u;
  43
  44 };
  45 static inline  u64 qeth_l3_ipaddr_hash(struct qeth_ipaddr *addr)
  46 {
  47         u64  ret = 0;
  48         u8 *point;
  49
  50         if (addr->proto == QETH_PROT_IPV6) {
  51                 point = (u8 *) &addr->u.a6.addr;
  52                 ret = get_unaligned((u64 *)point) ^
  53                         get_unaligned((u64 *) (point + 8));
  54         }
  55         if (addr->proto == QETH_PROT_IPV4) {
  56                 point = (u8 *) &addr->u.a4.addr;
  57                 ret = get_unaligned((u32 *) point);
  58         }
  59         return ret;
  60 }
  61
  62 struct qeth_ipato_entry {
  63         struct list_head entry;
  64         enum qeth_prot_versions proto;
  65         char addr[16];
  66         int mask_bits;
  67 };
  68
  69 extern const struct attribute_group *qeth_l3_attr_groups[];
  70
  71 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions, const __u8 *, char *);
  72 int qeth_l3_create_device_attributes(struct device *);
  73 void qeth_l3_remove_device_attributes(struct device *);
  74 int qeth_l3_setrouting_v4(struct qeth_card *);
  75 int qeth_l3_setrouting_v6(struct qeth_card *);
  76 int qeth_l3_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
  77 int qeth_l3_del_ipato_entry(struct qeth_card *card,
  78                             enum qeth_prot_versions proto, u8 *addr,
  79                             int mask_bits);
  80 int qeth_l3_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  81 int qeth_l3_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
  82                      const u8 *addr);
  83 int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  84 int qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
  85                      const u8 *addr);
  86 void qeth_l3_update_ipato(struct qeth_card *card);
  87 struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions);
  88 int qeth_l3_add_ip(struct qeth_card *, struct qeth_ipaddr *);
  89 int qeth_l3_delete_ip(struct qeth_card *, struct qeth_ipaddr *);
  90
  91 #endif /* __QETH_L3_H__ */