xref: /openbmc/linux/drivers/s390/net/qeth_l3.h (revision 77a87824)
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__ */
89