1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/* $OpenBSD: if_trunk.h,v 1.15 2008/06/13 07:03:45 mpf Exp $ */
/*
* Copyright (c) 2005, 2006, 2007 Reyk Floeter <reyk@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _NET_TRUNK_H
#define _NET_TRUNK_H
/*
* Global definitions
*/
#define TRUNK_MAX_PORTS 32 /* logically */
#define TRUNK_MAX_NAMESIZE 32 /* name of a protocol */
#define TRUNK_MAX_STACKING 4 /* maximum number of stacked trunks */
/* Port flags */
#define TRUNK_PORT_SLAVE 0x00000000 /* normal enslaved port */
#define TRUNK_PORT_MASTER 0x00000001 /* primary port */
#define TRUNK_PORT_STACK 0x00000002 /* stacked trunk port */
#define TRUNK_PORT_ACTIVE 0x00000004 /* port is active */
#define TRUNK_PORT_GLOBAL 0x80000000 /* IOCTL: global flag */
#define TRUNK_PORT_BITS \
"\20\01MASTER\02STACK\03ACTIVE"
/* Supported trunk PROTOs */
enum trunk_proto {
TRUNK_PROTO_NONE = 0, /* no trunk protocol defined */
TRUNK_PROTO_ROUNDROBIN = 1, /* simple round robin */
TRUNK_PROTO_FAILOVER = 2, /* active failover */
TRUNK_PROTO_LOADBALANCE = 3, /* loadbalance */
TRUNK_PROTO_BROADCAST = 4, /* broadcast */
TRUNK_PROTO_MAX = 5
};
struct trunk_protos {
const char *tpr_name;
enum trunk_proto tpr_proto;
};
#define TRUNK_PROTO_DEFAULT TRUNK_PROTO_ROUNDROBIN
#define TRUNK_PROTOS { \
{ "roundrobin", TRUNK_PROTO_ROUNDROBIN }, \
{ "failover", TRUNK_PROTO_FAILOVER }, \
{ "loadbalance", TRUNK_PROTO_LOADBALANCE }, \
{ "broadcast", TRUNK_PROTO_BROADCAST }, \
{ "none", TRUNK_PROTO_NONE }, \
{ "default", TRUNK_PROTO_DEFAULT } \
}
/*
* Trunk ioctls.
*/
/* Trunk port settings */
struct trunk_reqport {
char rp_ifname[IFNAMSIZ]; /* name of the trunk */
char rp_portname[IFNAMSIZ]; /* name of the port */
u_int32_t rp_prio; /* port priority */
u_int32_t rp_flags; /* port flags */
};
#define SIOCGTRUNKPORT _IOWR('i', 140, struct trunk_reqport)
#define SIOCSTRUNKPORT _IOW('i', 141, struct trunk_reqport)
#define SIOCSTRUNKDELPORT _IOW('i', 142, struct trunk_reqport)
/* Trunk, ports and options */
struct trunk_reqall {
char ra_ifname[IFNAMSIZ]; /* name of the trunk */
u_int ra_proto; /* trunk protocol */
size_t ra_size; /* size of buffer */
struct trunk_reqport *ra_port; /* allocated buffer */
int ra_ports; /* total port count */
};
#define SIOCGTRUNK _IOWR('i', 143, struct trunk_reqall)
#define SIOCSTRUNK _IOW('i', 144, struct trunk_reqall)
#ifdef _KERNEL
/*
* Internal kernel part
*/
struct trunk_softc;
struct trunk_port {
struct ifnet *tp_if; /* physical interface */
struct trunk_softc *tp_trunk; /* parent trunk */
u_int8_t tp_lladdr[ETHER_ADDR_LEN];
caddr_t tp_psc; /* protocol data */
u_char tp_iftype; /* interface type */
u_int32_t tp_prio; /* port priority */
u_int32_t tp_flags; /* port flags */
void *lh_cookie; /* if state hook */
/* Redirected callbacks */
void (*tp_watchdog)(struct ifnet *);
int (*tp_ioctl)(struct ifnet *, u_long, caddr_t);
SLIST_ENTRY(trunk_port) tp_entries;
};
#define tp_ifname tp_if->if_xname /* interface name */
#define tp_ifflags tp_if->if_flags /* interface flags */
#define tp_link_state tp_if->if_link_state /* link state */
#define tp_capabilities tp_if->if_capabilities /* capabilities */
#define TRUNK_PORTACTIVE(_tp) ( \
(LINK_STATE_IS_UP((_tp)->tp_link_state) || \
(_tp)->tp_link_state == LINK_STATE_UNKNOWN) && \
(_tp)->tp_ifflags & IFF_UP)
struct trunk_mc {
union {
struct ether_multi *mcu_enm;
} mc_u;
struct sockaddr_storage mc_addr;
SLIST_ENTRY(trunk_mc) mc_entries;
};
#define mc_enm mc_u.mcu_enm
struct trunk_ifreq {
union {
struct ifreq ifreq;
struct {
char ifr_name[IFNAMSIZ];
struct sockaddr_storage ifr_ss;
} ifreq_storage;
} ifreq;
};
struct trunk_softc {
struct arpcom tr_ac; /* virtual interface */
int tr_unit; /* trunk unit */
enum trunk_proto tr_proto; /* trunk protocol */
u_int tr_count; /* number of ports */
struct trunk_port *tr_primary; /* primary port */
struct ifmedia tr_media; /* media config */
caddr_t tr_psc; /* protocol data */
SLIST_HEAD(__tplhd, trunk_port) tr_ports; /* list of interfaces */
SLIST_ENTRY(trunk_softc) tr_entries;
SLIST_HEAD(__mclhd, trunk_mc) tr_mc_head; /* multicast addresses */
/* Trunk protocol callbacks */
int (*tr_detach)(struct trunk_softc *);
int (*tr_start)(struct trunk_softc *, struct mbuf *);
int (*tr_watchdog)(struct trunk_softc *);
int (*tr_input)(struct trunk_softc *, struct trunk_port *,
struct ether_header *, struct mbuf *);
int (*tr_port_create)(struct trunk_port *);
void (*tr_port_destroy)(struct trunk_port *);
void (*tr_linkstate)(struct trunk_port *);
void (*tr_init)(struct trunk_softc *);
void (*tr_stop)(struct trunk_softc *);
};
#define tr_ifflags tr_ac.ac_if.if_flags /* flags */
#define tr_ifname tr_ac.ac_if.if_xname /* name */
#define tr_capabilities tr_ac.ac_if.if_capabilities /* capabilities */
#define tr_ifindex tr_ac.ac_if.if_index /* int index */
#define tr_lladdr tr_ac.ac_enaddr /* lladdr */
#define IFCAP_TRUNK_MASK 0xffff0000 /* private capabilities */
#define IFCAP_TRUNK_FULLDUPLEX 0x00010000 /* full duplex with >1 ports */
/* Private data used by the loadbalancing protocol */
#define TRUNK_LB_MAXKEYS 8
struct trunk_lb {
u_int32_t lb_key;
struct trunk_port *lb_ports[TRUNK_MAX_PORTS];
};
void trunk_port_ifdetach(struct ifnet *);
int trunk_input(struct ifnet *, struct ether_header *,
struct mbuf *);
int trunk_enqueue(struct ifnet *, struct mbuf *);
u_int32_t trunk_hashmbuf(struct mbuf *, u_int32_t);
#endif /* _KERNEL */
#endif /* _NET_TRUNK_H */
|
