11 #include <arpa/inet.h>
12 #include <netinet/in.h>
14 #include <libubox/blobmsg_json.h>
17 #include "interface.h"
18 #include "interface-ip.h"
23 struct proto_shell_handler
{
24 struct list_head list
;
25 struct proto_handler proto
;
26 struct config_param_list config
;
31 struct proto_shell_state
{
32 struct interface_proto_state proto
;
33 struct proto_shell_handler
*handler
;
34 struct blob_attr
*config
;
36 struct device_user l3_dev
;
38 struct uloop_timeout setup_timeout
;
39 struct uloop_process setup_task
;
40 struct uloop_process teardown_task
;
41 bool teardown_pending
;
45 run_script(const char **argv
, struct uloop_process
*proc
)
49 if ((pid
= fork()) < 0)
54 execvp(argv
[0], (char **) argv
);
62 uloop_process_add(proc
);
68 proto_shell_handler(struct interface_proto_state
*proto
,
69 enum interface_proto_cmd cmd
, bool force
)
71 struct proto_shell_state
*state
;
72 struct proto_shell_handler
*handler
;
73 struct uloop_process
*proc
;
79 state
= container_of(proto
, struct proto_shell_state
, proto
);
80 handler
= state
->handler
;
82 if (cmd
== PROTO_CMD_SETUP
) {
84 proc
= &state
->setup_task
;
87 proc
= &state
->teardown_task
;
88 if (state
->setup_task
.pending
) {
89 uloop_timeout_set(&state
->setup_timeout
, 1000);
90 kill(state
->setup_task
.pid
, SIGINT
);
91 state
->teardown_pending
= true;
96 config
= blobmsg_format_json(state
->config
, true);
100 argv
[i
++] = handler
->script_name
;
101 argv
[i
++] = handler
->proto
.name
;
103 argv
[i
++] = proto
->iface
->name
;
105 if (proto
->iface
->main_dev
.dev
)
106 argv
[i
++] = proto
->iface
->main_dev
.dev
->ifname
;
109 ret
= run_script(argv
, proc
);
116 proto_shell_setup_timeout_cb(struct uloop_timeout
*timeout
)
118 struct proto_shell_state
*state
;
120 state
= container_of(timeout
, struct proto_shell_state
, setup_timeout
);
121 kill(state
->setup_task
.pid
, SIGKILL
);
125 proto_shell_setup_cb(struct uloop_process
*p
, int ret
)
127 struct proto_shell_state
*state
;
129 state
= container_of(p
, struct proto_shell_state
, setup_task
);
130 uloop_timeout_cancel(&state
->setup_timeout
);
131 if (state
->teardown_pending
) {
132 state
->teardown_pending
= false;
133 proto_shell_handler(&state
->proto
, PROTO_CMD_TEARDOWN
, false);
138 proto_shell_teardown_cb(struct uloop_process
*p
, int ret
)
140 struct proto_shell_state
*state
;
142 state
= container_of(p
, struct proto_shell_state
, teardown_task
);
144 if (state
->l3_dev
.dev
)
145 device_remove_user(&state
->l3_dev
);
147 state
->proto
.proto_event(&state
->proto
, IFPEV_DOWN
);
151 proto_shell_free(struct interface_proto_state
*proto
)
153 struct proto_shell_state
*state
;
155 state
= container_of(proto
, struct proto_shell_state
, proto
);
161 proto_shell_parse_addr_list(struct interface
*iface
, struct blob_attr
*attr
,
162 bool v6
, bool external
)
164 struct device_addr
*addr
;
165 struct blob_attr
*cur
;
168 blobmsg_for_each_attr(cur
, attr
, rem
) {
169 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
) {
170 DPRINTF("Ignore wrong address type: %d\n", blobmsg_type(cur
));
174 addr
= proto_parse_ip_addr_string(blobmsg_data(cur
), v6
, v6
? 32 : 128);
176 DPRINTF("Failed to parse IP address string: %s\n", (char *) blobmsg_data(cur
));
181 addr
->flags
|= DEVADDR_EXTERNAL
;
183 vlist_add(&iface
->proto_addr
, &addr
->node
);
195 static const struct blobmsg_policy route_attr
[__ROUTE_LAST
] = {
196 [ROUTE_TARGET
] = { .name
= "target", .type
= BLOBMSG_TYPE_STRING
},
197 [ROUTE_MASK
] = { .name
= "mask", .type
= BLOBMSG_TYPE_INT32
},
198 [ROUTE_GATEWAY
] = { .name
= "gateway", .type
= BLOBMSG_TYPE_STRING
},
199 [ROUTE_DEVICE
] = { .name
= "device", .type
= BLOBMSG_TYPE_STRING
},
203 parse_route(struct interface
*iface
, struct blob_attr
*attr
, bool v6
)
205 struct blob_attr
*tb
[__ROUTE_LAST
], *cur
;
206 struct device_route
*route
;
207 int af
= v6
? AF_INET6
: AF_INET
;
209 blobmsg_parse(route_attr
, __ROUTE_LAST
, tb
, blobmsg_data(attr
), blobmsg_data_len(attr
));
211 if (!tb
[ROUTE_GATEWAY
] && !tb
[ROUTE_DEVICE
])
214 route
= calloc(1, sizeof(*route
));
218 route
->mask
= v6
? 128 : 32;
219 if ((cur
= tb
[ROUTE_MASK
]) != NULL
) {
220 route
->mask
= blobmsg_get_u32(cur
);
221 if (route
->mask
> v6
? 128 : 32)
225 if ((cur
= tb
[ROUTE_TARGET
]) != NULL
) {
226 if (!inet_pton(af
, blobmsg_data(cur
), &route
->addr
)) {
227 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur
));
232 if ((cur
= tb
[ROUTE_GATEWAY
]) != NULL
) {
233 if (!inet_pton(af
, blobmsg_data(cur
), &route
->nexthop
)) {
234 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur
));
239 if ((cur
= tb
[ROUTE_DEVICE
]) != NULL
)
240 route
->device
= device_get(blobmsg_data(cur
), true);
242 vlist_add(&iface
->proto_route
, &route
->node
);
250 proto_shell_parse_route_list(struct interface
*iface
, struct blob_attr
*attr
,
253 struct blob_attr
*cur
;
256 blobmsg_for_each_attr(cur
, attr
, rem
) {
257 if (blobmsg_type(cur
) != BLOBMSG_TYPE_TABLE
) {
258 DPRINTF("Ignore wrong route type: %d\n", blobmsg_type(cur
));
262 parse_route(iface
, cur
, v6
);
278 static const struct blobmsg_policy notify_attr
[__NOTIFY_LAST
] = {
279 [NOTIFY_LINK_UP
] = { .name
= "link-up", .type
= BLOBMSG_TYPE_BOOL
},
280 [NOTIFY_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
281 [NOTIFY_ADDR_EXT
] = { .name
= "address-external", .type
= BLOBMSG_TYPE_BOOL
},
282 [NOTIFY_IPADDR
] = { .name
= "ipaddr", .type
= BLOBMSG_TYPE_ARRAY
},
283 [NOTIFY_IP6ADDR
] = { .name
= "ip6addr", .type
= BLOBMSG_TYPE_ARRAY
},
284 [NOTIFY_ROUTES
] = { .name
= "routes", .type
= BLOBMSG_TYPE_ARRAY
},
285 [NOTIFY_ROUTES6
] = { .name
= "routes6", .type
= BLOBMSG_TYPE_ARRAY
},
289 proto_shell_notify(struct interface_proto_state
*proto
, struct blob_attr
*attr
)
291 struct proto_shell_state
*state
;
292 struct blob_attr
*tb
[__NOTIFY_LAST
], *cur
;
293 bool addr_ext
= false;
296 state
= container_of(proto
, struct proto_shell_state
, proto
);
298 blobmsg_parse(notify_attr
, __NOTIFY_LAST
, tb
, blob_data(attr
), blob_len(attr
));
299 if (!tb
[NOTIFY_LINK_UP
])
300 return UBUS_STATUS_INVALID_ARGUMENT
;
302 up
= blobmsg_get_bool(tb
[NOTIFY_LINK_UP
]);
304 if (!tb
[NOTIFY_IFNAME
])
305 return UBUS_STATUS_INVALID_ARGUMENT
;
307 if (!state
->l3_dev
.dev
) {
308 device_add_user(&state
->l3_dev
,
309 device_get(blobmsg_data(tb
[NOTIFY_IFNAME
]), true));
310 device_claim(&state
->l3_dev
);
311 state
->proto
.iface
->l3_dev
= &state
->l3_dev
;
313 state
->proto
.proto_event(&state
->proto
, IFPEV_UP
);
315 state
->proto
.proto_event(&state
->proto
, IFPEV_LINK_LOST
);
318 if ((cur
= tb
[NOTIFY_ADDR_EXT
]) != NULL
)
319 addr_ext
= blobmsg_get_bool(cur
);
321 if ((cur
= tb
[NOTIFY_IPADDR
]) != NULL
)
322 proto_shell_parse_addr_list(state
->proto
.iface
, cur
, false, addr_ext
);
324 if ((cur
= tb
[NOTIFY_IP6ADDR
]) != NULL
)
325 proto_shell_parse_addr_list(state
->proto
.iface
, cur
, true, addr_ext
);
327 if ((cur
= tb
[NOTIFY_ROUTES
]) != NULL
)
328 proto_shell_parse_route_list(state
->proto
.iface
, cur
, false);
330 if ((cur
= tb
[NOTIFY_ROUTES6
]) != NULL
)
331 proto_shell_parse_route_list(state
->proto
.iface
, cur
, true);
336 struct interface_proto_state
*
337 proto_shell_attach(const struct proto_handler
*h
, struct interface
*iface
,
338 struct blob_attr
*attr
)
340 struct proto_shell_state
*state
;
342 state
= calloc(1, sizeof(*state
));
343 state
->config
= malloc(blob_pad_len(attr
));
347 memcpy(state
->config
, attr
, blob_pad_len(attr
));
348 state
->proto
.free
= proto_shell_free
;
349 state
->proto
.notify
= proto_shell_notify
;
350 state
->proto
.cb
= proto_shell_handler
;
351 state
->setup_timeout
.cb
= proto_shell_setup_timeout_cb
;
352 state
->setup_task
.cb
= proto_shell_setup_cb
;
353 state
->teardown_task
.cb
= proto_shell_teardown_cb
;
354 state
->handler
= container_of(h
, struct proto_shell_handler
, proto
);
356 return &state
->proto
;
364 check_type(json_object
*obj
, json_type type
)
369 if (json_object_get_type(obj
) != type
)
375 static inline json_object
*
376 get_field(json_object
*obj
, const char *name
, json_type type
)
378 return check_type(json_object_object_get(obj
, name
), type
);
382 proto_shell_parse_config(struct config_param_list
*config
, json_object
*obj
)
384 struct blobmsg_policy
*attrs
;
385 char *str_buf
, *str_cur
;
389 config
->n_params
= json_object_array_length(obj
);
390 attrs
= calloc(1, sizeof(*attrs
) * config
->n_params
);
394 config
->params
= attrs
;
395 for (i
= 0; i
< config
->n_params
; i
++) {
396 json_object
*cur
, *name
, *type
;
398 cur
= check_type(json_object_array_get_idx(obj
, i
), json_type_array
);
402 name
= check_type(json_object_array_get_idx(cur
, 0), json_type_string
);
406 type
= check_type(json_object_array_get_idx(cur
, 1), json_type_int
);
410 attrs
[i
].name
= json_object_get_string(name
);
411 attrs
[i
].type
= json_object_get_int(type
);
412 if (attrs
[i
].type
> BLOBMSG_TYPE_LAST
)
415 str_len
+= strlen(attrs
[i
].name
) + 1;
418 str_buf
= malloc(str_len
);
423 for (i
= 0; i
< config
->n_params
; i
++) {
424 const char *name
= attrs
[i
].name
;
426 attrs
[i
].name
= str_cur
;
427 str_cur
+= sprintf(str_cur
, "%s", name
) + 1;
434 config
->n_params
= 0;
439 proto_shell_add_handler(const char *script
, json_object
*obj
)
441 struct proto_shell_handler
*handler
;
442 struct proto_handler
*proto
;
443 json_object
*config
, *tmp
;
447 if (!check_type(obj
, json_type_object
))
450 tmp
= get_field(obj
, "name", json_type_string
);
454 name
= json_object_get_string(tmp
);
456 handler
= calloc(1, sizeof(*handler
) +
462 strcpy(handler
->script_name
, script
);
464 str
= handler
->script_name
+ strlen(handler
->script_name
) + 1;
467 proto
= &handler
->proto
;
469 proto
->config_params
= &handler
->config
;
470 proto
->attach
= proto_shell_attach
;
472 tmp
= get_field(obj
, "no-device", json_type_boolean
);
473 if (tmp
&& json_object_get_boolean(tmp
))
474 handler
->proto
.flags
|= PROTO_FLAG_NODEV
;
476 config
= get_field(obj
, "config", json_type_array
);
478 handler
->config_buf
= proto_shell_parse_config(&handler
->config
, config
);
480 DPRINTF("Add handler for script %s: %s\n", script
, proto
->name
);
481 add_proto_handler(proto
);
484 static void proto_shell_add_script(const char *name
)
486 struct json_tokener
*tok
= NULL
;
488 static char buf
[512];
489 char *start
, *end
, *cmd
;
493 #define DUMP_SUFFIX " '' dump"
495 cmd
= alloca(strlen(name
) + 1 + sizeof(DUMP_SUFFIX
));
496 sprintf(cmd
, "%s" DUMP_SUFFIX
, name
);
503 buflen
= fread(buf
, 1, sizeof(buf
) - 1, f
);
510 end
= memchr(start
, '\n', len
);
515 tok
= json_tokener_new();
517 obj
= json_tokener_parse_ex(tok
, start
, len
);
518 if (!is_error(obj
)) {
519 proto_shell_add_handler(name
, obj
);
520 json_object_put(obj
);
521 json_tokener_free(tok
);
527 len
= buflen
- (start
- buf
);
530 } while (!feof(f
) && !ferror(f
));
533 json_tokener_free(tok
);
538 void __init
proto_shell_init(void)
544 main_fd
= open(".", O_RDONLY
| O_DIRECTORY
);
548 if (chdir(main_path
)) {
549 perror("chdir(main path)");
553 if (chdir("./proto"))
556 proto_fd
= open(".", O_RDONLY
| O_DIRECTORY
);
560 glob("./*.sh", 0, NULL
, &g
);
561 for (i
= 0; i
< g
.gl_pathc
; i
++)
562 proto_shell_add_script(g
.gl_pathv
[i
]);