9 static struct avl_tree handlers
;
11 void add_proto_handler(struct proto_handler
*p
)
14 avl_init(&handlers
, avl_strcmp
, false, NULL
);
20 avl_insert(&handlers
, &p
->avl
);
24 default_proto_free(struct interface_proto_state
*proto
)
30 invalid_proto_handler(struct interface_proto_state
*proto
,
31 enum interface_proto_cmd cmd
, bool force
)
37 no_proto_handler(struct interface_proto_state
*proto
,
38 enum interface_proto_cmd cmd
, bool force
)
43 static struct interface_proto_state
*
44 default_proto_attach(const struct proto_handler
*h
,
45 struct interface
*iface
, struct blob_attr
*attr
)
47 struct interface_proto_state
*proto
;
49 proto
= calloc(1, sizeof(*proto
));
50 proto
->free
= default_proto_free
;
51 proto
->flags
= PROTO_FLAG_IMMEDIATE
;
52 proto
->handler
= no_proto_handler
;
57 static const struct proto_handler no_proto
= {
59 .attach
= default_proto_attach
,
62 static const struct proto_handler
*
63 get_proto_handler(const char *name
)
65 struct proto_handler
*proto
;
67 if (!strcmp(name
, "none"))
73 return avl_find_element(&handlers
, name
, proto
, avl
);
77 proto_init_interface(struct interface
*iface
, struct blob_attr
*attr
)
79 const struct proto_handler
*proto
= iface
->proto_handler
;
80 struct interface_proto_state
*state
= NULL
;
83 state
= proto
->attach(proto
, iface
, attr
);
86 state
= no_proto
.attach(&no_proto
, iface
, attr
);
87 state
->handler
= invalid_proto_handler
;
90 interface_set_proto_state(iface
, state
);
94 proto_attach_interface(struct interface
*iface
, const char *proto_name
)
96 const struct proto_handler
*proto
= NULL
;
99 interface_add_error(iface
, "proto", "NO_PROTO", NULL
, 0);
103 proto
= get_proto_handler(proto_name
);
105 interface_add_error(iface
, "proto", "INVALID_PROTO", NULL
, 0);
107 iface
->proto_handler
= proto
;
111 interface_proto_event(struct interface_proto_state
*proto
,
112 enum interface_proto_cmd cmd
, bool force
)
114 enum interface_event ev
;
117 ret
= proto
->handler(proto
, cmd
, force
);
118 if (ret
|| !(proto
->flags
& PROTO_FLAG_IMMEDIATE
))
122 case PROTO_CMD_SETUP
:
125 case PROTO_CMD_TEARDOWN
:
131 proto
->proto_event(proto
, ev
);