10 #include <netinet/in.h>
12 #include <libubox/blobmsg_json.h>
15 #include "interface.h"
16 #include "interface-ip.h"
21 struct proto_shell_handler
{
22 struct list_head list
;
23 struct proto_handler proto
;
24 struct config_param_list config
;
29 struct proto_shell_state
{
30 struct interface_proto_state proto
;
31 struct proto_shell_handler
*handler
;
32 struct blob_attr
*config
;
34 struct device_user l3_dev
;
36 struct uloop_timeout setup_timeout
;
37 struct uloop_process setup_task
;
38 struct uloop_process teardown_task
;
39 bool teardown_pending
;
43 run_script(const char **argv
, struct uloop_process
*proc
)
47 if ((pid
= fork()) < 0)
52 execvp(argv
[0], (char **) argv
);
60 uloop_process_add(proc
);
66 proto_shell_handler(struct interface_proto_state
*proto
,
67 enum interface_proto_cmd cmd
, bool force
)
69 struct proto_shell_state
*state
;
70 struct proto_shell_handler
*handler
;
71 struct uloop_process
*proc
;
77 state
= container_of(proto
, struct proto_shell_state
, proto
);
78 handler
= state
->handler
;
80 if (cmd
== PROTO_CMD_SETUP
) {
82 proc
= &state
->setup_task
;
85 proc
= &state
->teardown_task
;
86 if (state
->setup_task
.pending
) {
87 uloop_timeout_set(&state
->setup_timeout
, 1000);
88 kill(state
->setup_task
.pid
, SIGINT
);
89 state
->teardown_pending
= true;
94 config
= blobmsg_format_json(state
->config
, true);
98 argv
[i
++] = handler
->script_name
;
99 argv
[i
++] = handler
->proto
.name
;
101 argv
[i
++] = proto
->iface
->name
;
103 if (proto
->iface
->main_dev
.dev
)
104 argv
[i
++] = proto
->iface
->main_dev
.dev
->ifname
;
107 ret
= run_script(argv
, proc
);
114 proto_shell_setup_timeout_cb(struct uloop_timeout
*timeout
)
116 struct proto_shell_state
*state
;
118 state
= container_of(timeout
, struct proto_shell_state
, setup_timeout
);
119 kill(state
->setup_task
.pid
, SIGKILL
);
123 proto_shell_setup_cb(struct uloop_process
*p
, int ret
)
125 struct proto_shell_state
*state
;
127 state
= container_of(p
, struct proto_shell_state
, setup_task
);
128 uloop_timeout_cancel(&state
->setup_timeout
);
129 if (state
->teardown_pending
) {
130 state
->teardown_pending
= false;
131 proto_shell_handler(&state
->proto
, PROTO_CMD_TEARDOWN
, false);
136 proto_shell_teardown_cb(struct uloop_process
*p
, int ret
)
138 struct proto_shell_state
*state
;
140 state
= container_of(p
, struct proto_shell_state
, teardown_task
);
142 if (state
->l3_dev
.dev
)
143 device_remove_user(&state
->l3_dev
);
145 state
->proto
.proto_event(&state
->proto
, IFPEV_DOWN
);
149 proto_shell_free(struct interface_proto_state
*proto
)
151 struct proto_shell_state
*state
;
153 state
= container_of(proto
, struct proto_shell_state
, proto
);
159 proto_shell_parse_addr_list(struct interface
*iface
, struct blob_attr
*attr
,
160 bool v6
, bool external
)
162 struct device_addr
*addr
;
163 struct blob_attr
*cur
;
166 blobmsg_for_each_attr(cur
, attr
, rem
) {
167 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
) {
168 DPRINTF("Ignore wrong address type: %d\n", blobmsg_type(cur
));
172 addr
= proto_parse_ip_addr_string(blobmsg_data(cur
), v6
, v6
? 32 : 128);
174 DPRINTF("Failed to parse IP address string: %s\n", (char *) blobmsg_data(cur
));
179 addr
->flags
|= DEVADDR_EXTERNAL
;
181 vlist_add(&iface
->proto_addr
, &addr
->node
);
193 static const struct blobmsg_policy route_attr
[__ROUTE_LAST
] = {
194 [ROUTE_TARGET
] = { .name
= "target", .type
= BLOBMSG_TYPE_STRING
},
195 [ROUTE_MASK
] = { .name
= "mask", .type
= BLOBMSG_TYPE_INT32
},
196 [ROUTE_GATEWAY
] = { .name
= "gateway", .type
= BLOBMSG_TYPE_STRING
},
197 [ROUTE_DEVICE
] = { .name
= "device", .type
= BLOBMSG_TYPE_STRING
},
201 parse_route(struct interface
*iface
, struct blob_attr
*attr
, bool v6
)
203 struct blob_attr
*tb
[__ROUTE_LAST
], *cur
;
204 struct device_route
*route
;
205 int af
= v6
? AF_INET6
: AF_INET
;
207 blobmsg_parse(route_attr
, __ROUTE_LAST
, tb
, blobmsg_data(attr
), blobmsg_data_len(attr
));
209 if (!tb
[ROUTE_GATEWAY
] && !tb
[ROUTE_DEVICE
])
212 route
= calloc(1, sizeof(*route
));
216 route
->mask
= v6
? 128 : 32;
217 if ((cur
= tb
[ROUTE_MASK
]) != NULL
) {
218 route
->mask
= blobmsg_get_u32(cur
);
219 if (route
->mask
> v6
? 128 : 32)
223 if ((cur
= tb
[ROUTE_TARGET
]) != NULL
) {
224 if (!inet_pton(af
, blobmsg_data(cur
), &route
->addr
)) {
225 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur
));
230 if ((cur
= tb
[ROUTE_GATEWAY
]) != NULL
) {
231 if (!inet_pton(af
, blobmsg_data(cur
), &route
->nexthop
)) {
232 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur
));
237 if ((cur
= tb
[ROUTE_DEVICE
]) != NULL
)
238 route
->device
= device_get(blobmsg_data(cur
), true);
240 vlist_add(&iface
->proto_route
, &route
->node
);
248 proto_shell_parse_route_list(struct interface
*iface
, struct blob_attr
*attr
,
251 struct blob_attr
*cur
;
254 blobmsg_for_each_attr(cur
, attr
, rem
) {
255 if (blobmsg_type(cur
) != BLOBMSG_TYPE_TABLE
) {
256 DPRINTF("Ignore wrong route type: %d\n", blobmsg_type(cur
));
260 parse_route(iface
, cur
, v6
);
276 static const struct blobmsg_policy notify_attr
[__NOTIFY_LAST
] = {
277 [NOTIFY_LINK_UP
] = { .name
= "link-up", .type
= BLOBMSG_TYPE_BOOL
},
278 [NOTIFY_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
279 [NOTIFY_ADDR_EXT
] = { .name
= "address-external", .type
= BLOBMSG_TYPE_BOOL
},
280 [NOTIFY_IPADDR
] = { .name
= "ipaddr", .type
= BLOBMSG_TYPE_ARRAY
},
281 [NOTIFY_IP6ADDR
] = { .name
= "ip6addr", .type
= BLOBMSG_TYPE_ARRAY
},
282 [NOTIFY_ROUTES
] = { .name
= "routes", .type
= BLOBMSG_TYPE_ARRAY
},
283 [NOTIFY_ROUTES6
] = { .name
= "routes6", .type
= BLOBMSG_TYPE_ARRAY
},
287 proto_shell_notify(struct interface_proto_state
*proto
, struct blob_attr
*attr
)
289 struct proto_shell_state
*state
;
290 struct blob_attr
*tb
[__NOTIFY_LAST
], *cur
;
291 bool addr_ext
= false;
294 state
= container_of(proto
, struct proto_shell_state
, proto
);
296 blobmsg_parse(notify_attr
, __NOTIFY_LAST
, tb
, blob_data(attr
), blob_len(attr
));
297 if (!tb
[NOTIFY_LINK_UP
])
298 return UBUS_STATUS_INVALID_ARGUMENT
;
300 up
= blobmsg_get_bool(tb
[NOTIFY_LINK_UP
]);
302 if (!tb
[NOTIFY_IFNAME
])
303 return UBUS_STATUS_INVALID_ARGUMENT
;
305 if (!state
->l3_dev
.dev
) {
306 device_add_user(&state
->l3_dev
,
307 device_get(blobmsg_data(tb
[NOTIFY_IFNAME
]), true));
308 device_claim(&state
->l3_dev
);
309 state
->proto
.iface
->l3_dev
= &state
->l3_dev
;
311 state
->proto
.proto_event(&state
->proto
, IFPEV_UP
);
313 state
->proto
.proto_event(&state
->proto
, IFPEV_LINK_LOST
);
316 if ((cur
= tb
[NOTIFY_ADDR_EXT
]) != NULL
)
317 addr_ext
= blobmsg_get_bool(cur
);
319 if ((cur
= tb
[NOTIFY_IPADDR
]) != NULL
)
320 proto_shell_parse_addr_list(state
->proto
.iface
, cur
, false, addr_ext
);
322 if ((cur
= tb
[NOTIFY_IP6ADDR
]) != NULL
)
323 proto_shell_parse_addr_list(state
->proto
.iface
, cur
, true, addr_ext
);
325 if ((cur
= tb
[NOTIFY_ROUTES
]) != NULL
)
326 proto_shell_parse_route_list(state
->proto
.iface
, cur
, false);
328 if ((cur
= tb
[NOTIFY_ROUTES6
]) != NULL
)
329 proto_shell_parse_route_list(state
->proto
.iface
, cur
, true);
334 struct interface_proto_state
*
335 proto_shell_attach(const struct proto_handler
*h
, struct interface
*iface
,
336 struct blob_attr
*attr
)
338 struct proto_shell_state
*state
;
340 state
= calloc(1, sizeof(*state
));
341 state
->config
= malloc(blob_pad_len(attr
));
345 memcpy(state
->config
, attr
, blob_pad_len(attr
));
346 state
->proto
.free
= proto_shell_free
;
347 state
->proto
.notify
= proto_shell_notify
;
348 state
->proto
.cb
= proto_shell_handler
;
349 state
->setup_timeout
.cb
= proto_shell_setup_timeout_cb
;
350 state
->setup_task
.cb
= proto_shell_setup_cb
;
351 state
->teardown_task
.cb
= proto_shell_teardown_cb
;
352 state
->handler
= container_of(h
, struct proto_shell_handler
, proto
);
354 return &state
->proto
;
362 check_type(json_object
*obj
, json_type type
)
367 if (json_object_get_type(obj
) != type
)
373 static inline json_object
*
374 get_field(json_object
*obj
, const char *name
, json_type type
)
376 return check_type(json_object_object_get(obj
, name
), type
);
380 proto_shell_parse_config(struct config_param_list
*config
, json_object
*obj
)
382 struct blobmsg_policy
*attrs
;
383 char *str_buf
, *str_cur
;
387 config
->n_params
= json_object_array_length(obj
);
388 attrs
= calloc(1, sizeof(*attrs
) * config
->n_params
);
392 config
->params
= attrs
;
393 for (i
= 0; i
< config
->n_params
; i
++) {
394 json_object
*cur
, *name
, *type
;
396 cur
= check_type(json_object_array_get_idx(obj
, i
), json_type_array
);
400 name
= check_type(json_object_array_get_idx(cur
, 0), json_type_string
);
404 type
= check_type(json_object_array_get_idx(cur
, 1), json_type_int
);
408 attrs
[i
].name
= json_object_get_string(name
);
409 attrs
[i
].type
= json_object_get_int(type
);
410 if (attrs
[i
].type
> BLOBMSG_TYPE_LAST
)
413 str_len
+= strlen(attrs
[i
].name
) + 1;
416 str_buf
= malloc(str_len
);
421 for (i
= 0; i
< config
->n_params
; i
++) {
422 const char *name
= attrs
[i
].name
;
424 attrs
[i
].name
= str_cur
;
425 str_cur
+= sprintf(str_cur
, "%s", name
) + 1;
432 config
->n_params
= 0;
437 proto_shell_add_handler(const char *script
, json_object
*obj
)
439 struct proto_shell_handler
*handler
;
440 struct proto_handler
*proto
;
441 json_object
*config
, *tmp
;
445 if (!check_type(obj
, json_type_object
))
448 tmp
= get_field(obj
, "name", json_type_string
);
452 name
= json_object_get_string(tmp
);
454 handler
= calloc(1, sizeof(*handler
) +
460 strcpy(handler
->script_name
, script
);
462 str
= handler
->script_name
+ strlen(handler
->script_name
) + 1;
465 proto
= &handler
->proto
;
467 proto
->config_params
= &handler
->config
;
468 proto
->attach
= proto_shell_attach
;
470 tmp
= get_field(obj
, "no-device", json_type_boolean
);
471 if (tmp
&& json_object_get_boolean(tmp
))
472 handler
->proto
.flags
|= PROTO_FLAG_NODEV
;
474 config
= get_field(obj
, "config", json_type_array
);
476 handler
->config_buf
= proto_shell_parse_config(&handler
->config
, config
);
478 DPRINTF("Add handler for script %s: %s\n", script
, proto
->name
);
479 add_proto_handler(proto
);
482 static void proto_shell_add_script(const char *name
)
484 struct json_tokener
*tok
= NULL
;
486 static char buf
[512];
487 char *start
, *end
, *cmd
;
491 #define DUMP_SUFFIX " '' dump"
493 cmd
= alloca(strlen(name
) + 1 + sizeof(DUMP_SUFFIX
));
494 sprintf(cmd
, "%s" DUMP_SUFFIX
, name
);
501 buflen
= fread(buf
, 1, sizeof(buf
) - 1, f
);
508 end
= memchr(start
, '\n', len
);
513 tok
= json_tokener_new();
515 obj
= json_tokener_parse_ex(tok
, start
, len
);
516 if (!is_error(obj
)) {
517 proto_shell_add_handler(name
, obj
);
518 json_object_put(obj
);
519 json_tokener_free(tok
);
525 len
= buflen
- (start
- buf
);
528 } while (!feof(f
) && !ferror(f
));
531 json_tokener_free(tok
);
536 void __init
proto_shell_init(void)
542 main_fd
= open(".", O_RDONLY
| O_DIRECTORY
);
546 if (chdir(main_path
)) {
547 perror("chdir(main path)");
551 if (chdir("./proto"))
554 proto_fd
= open(".", O_RDONLY
| O_DIRECTORY
);
558 glob("./*.sh", 0, NULL
, &g
);
559 for (i
= 0; i
< g
.gl_pathc
; i
++)
560 proto_shell_add_script(g
.gl_pathv
[i
]);