drivers/s390/net/qeth_l3.h

   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
  17 struct 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 };
  44 static 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
  61 struct qeth_ipato_entry {
  62         struct list_head entry;
  63         enum qeth_prot_versions proto;
  64         char addr[16];
  65         int mask_bits;
  66 };
  67
  68
  69 void qeth_l3_ipaddr_to_string(enum qeth_prot_versions, const __u8 *, char *);
  70 int qeth_l3_string_to_ipaddr(const char *, enum qeth_prot_versions, __u8 *);
  71 int qeth_l3_create_device_attributes(struct device *);
  72 void qeth_l3_remove_device_attributes(struct device *);
  73 int qeth_l3_setrouting_v4(struct qeth_card *);
  74 int qeth_l3_setrouting_v6(struct qeth_card *);
  75 int qeth_l3_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);
  76 void qeth_l3_del_ipato_entry(struct qeth_card *, enum qeth_prot_versions,
  77                         u8 *, int);
  78 int qeth_l3_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  79 void qeth_l3_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  80 int qeth_l3_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);
  81 void qeth_l3_del_rxip(struct qeth_card *card, enum qeth_prot_versions,
  82                         const u8 *);
  83 int qeth_l3_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
  84 struct qeth_ipaddr *qeth_l3_get_addr_buffer(enum qeth_prot_versions);
  85 int qeth_l3_add_ip(struct qeth_card *, struct qeth_ipaddr *);
  86 int qeth_l3_delete_ip(struct qeth_card *, struct qeth_ipaddr *);
  87
  88 #endif /* __QETH_L3_H__ */