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"
21 static struct netifd_fd proto_fd
;
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 netifd_process setup_task
;
40 struct netifd_process teardown_task
;
41 bool teardown_pending
;
42 bool teardown_wait_task
;
44 struct netifd_process proto_task
;
48 proto_shell_handler(struct interface_proto_state
*proto
,
49 enum interface_proto_cmd cmd
, bool force
)
51 struct proto_shell_state
*state
;
52 struct proto_shell_handler
*handler
;
53 struct netifd_process
*proc
;
59 state
= container_of(proto
, struct proto_shell_state
, proto
);
60 handler
= state
->handler
;
62 if (cmd
== PROTO_CMD_SETUP
) {
64 proc
= &state
->setup_task
;
67 proc
= &state
->teardown_task
;
68 if (state
->setup_task
.uloop
.pending
&& !state
->teardown_wait_task
) {
69 uloop_timeout_set(&state
->setup_timeout
, 1000);
70 kill(state
->setup_task
.uloop
.pid
, SIGTERM
);
71 state
->teardown_pending
= true;
76 config
= blobmsg_format_json(state
->config
, true);
80 argv
[i
++] = handler
->script_name
;
81 argv
[i
++] = handler
->proto
.name
;
83 argv
[i
++] = proto
->iface
->name
;
85 if (proto
->iface
->main_dev
.dev
)
86 argv
[i
++] = proto
->iface
->main_dev
.dev
->ifname
;
89 ret
= netifd_start_process(argv
, NULL
, proc
);
96 proto_shell_setup_timeout_cb(struct uloop_timeout
*timeout
)
98 struct proto_shell_state
*state
;
100 state
= container_of(timeout
, struct proto_shell_state
, setup_timeout
);
101 kill(state
->setup_task
.uloop
.pid
, SIGKILL
);
105 proto_shell_setup_cb(struct netifd_process
*p
, int ret
)
107 struct proto_shell_state
*state
;
109 state
= container_of(p
, struct proto_shell_state
, setup_task
);
110 uloop_timeout_cancel(&state
->setup_timeout
);
111 if (state
->teardown_pending
) {
112 state
->teardown_pending
= false;
113 proto_shell_handler(&state
->proto
, PROTO_CMD_TEARDOWN
, false);
118 proto_shell_teardown_cb(struct netifd_process
*p
, int ret
)
120 struct proto_shell_state
*state
;
122 state
= container_of(p
, struct proto_shell_state
, teardown_task
);
124 if (state
->teardown_wait_task
)
127 netifd_kill_process(&state
->proto_task
);
128 state
->proto
.proto_event(&state
->proto
, IFPEV_DOWN
);
132 proto_shell_task_cb(struct netifd_process
*p
, int ret
)
134 struct proto_shell_state
*state
;
135 bool teardown_wait_task
;
137 state
= container_of(p
, struct proto_shell_state
, proto_task
);
139 teardown_wait_task
= state
->teardown_wait_task
;
140 state
->teardown_wait_task
= false;
141 if (state
->teardown_pending
|| state
->teardown_task
.uloop
.pending
)
144 if (teardown_wait_task
) {
145 proto_shell_teardown_cb(&state
->teardown_task
, 0);
149 state
->proto
.proto_event(&state
->proto
, IFPEV_LINK_LOST
);
150 proto_shell_handler(&state
->proto
, PROTO_CMD_TEARDOWN
, false);
154 proto_shell_free(struct interface_proto_state
*proto
)
156 struct proto_shell_state
*state
;
158 state
= container_of(proto
, struct proto_shell_state
, proto
);
164 proto_shell_parse_addr_list(struct interface_ip_settings
*ip
, struct blob_attr
*attr
,
165 bool v6
, bool external
)
167 struct device_addr
*addr
;
168 struct blob_attr
*cur
;
171 blobmsg_for_each_attr(cur
, attr
, rem
) {
172 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
) {
173 DPRINTF("Ignore wrong address type: %d\n", blobmsg_type(cur
));
177 addr
= proto_parse_ip_addr_string(blobmsg_data(cur
), v6
, v6
? 32 : 128);
179 DPRINTF("Failed to parse IP address string: %s\n", (char *) blobmsg_data(cur
));
184 addr
->flags
|= DEVADDR_EXTERNAL
;
186 vlist_add(&ip
->addr
, &addr
->node
);
191 proto_shell_parse_route_list(struct interface
*iface
, struct blob_attr
*attr
,
194 struct blob_attr
*cur
;
197 blobmsg_for_each_attr(cur
, attr
, rem
) {
198 if (blobmsg_type(cur
) != BLOBMSG_TYPE_TABLE
) {
199 DPRINTF("Ignore wrong route type: %d\n", blobmsg_type(cur
));
203 interface_ip_add_route(iface
, cur
, v6
);
224 static const struct blobmsg_policy notify_attr
[__NOTIFY_LAST
] = {
225 [NOTIFY_ACTION
] = { .name
= "action", .type
= BLOBMSG_TYPE_INT32
},
226 [NOTIFY_COMMAND
] = { .name
= "command", .type
= BLOBMSG_TYPE_ARRAY
},
227 [NOTIFY_ENV
] = { .name
= "env", .type
= BLOBMSG_TYPE_ARRAY
},
228 [NOTIFY_SIGNAL
] = { .name
= "signal", .type
= BLOBMSG_TYPE_INT32
},
229 [NOTIFY_LINK_UP
] = { .name
= "link-up", .type
= BLOBMSG_TYPE_BOOL
},
230 [NOTIFY_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
231 [NOTIFY_ADDR_EXT
] = { .name
= "address-external", .type
= BLOBMSG_TYPE_BOOL
},
232 [NOTIFY_IPADDR
] = { .name
= "ipaddr", .type
= BLOBMSG_TYPE_ARRAY
},
233 [NOTIFY_IP6ADDR
] = { .name
= "ip6addr", .type
= BLOBMSG_TYPE_ARRAY
},
234 [NOTIFY_ROUTES
] = { .name
= "routes", .type
= BLOBMSG_TYPE_ARRAY
},
235 [NOTIFY_ROUTES6
] = { .name
= "routes6", .type
= BLOBMSG_TYPE_ARRAY
},
236 [NOTIFY_DNS
] = { .name
= "dns", .type
= BLOBMSG_TYPE_ARRAY
},
237 [NOTIFY_DNS_SEARCH
] = { .name
= "dns_search", .type
= BLOBMSG_TYPE_ARRAY
},
241 proto_shell_update_link(struct proto_shell_state
*state
, struct blob_attr
**tb
)
243 struct interface_ip_settings
*ip
;
244 struct blob_attr
*cur
;
246 bool addr_ext
= false;
249 if (!tb
[NOTIFY_LINK_UP
])
250 return UBUS_STATUS_INVALID_ARGUMENT
;
252 up
= blobmsg_get_bool(tb
[NOTIFY_LINK_UP
]);
254 state
->proto
.proto_event(&state
->proto
, IFPEV_LINK_LOST
);
258 if ((cur
= tb
[NOTIFY_ADDR_EXT
]) != NULL
) {
259 addr_ext
= blobmsg_get_bool(cur
);
264 if (!tb
[NOTIFY_IFNAME
]) {
265 if (!state
->proto
.iface
->main_dev
.dev
)
266 return UBUS_STATUS_INVALID_ARGUMENT
;
268 if (state
->l3_dev
.dev
)
269 device_remove_user(&state
->l3_dev
);
271 device_add_user(&state
->l3_dev
,
272 device_get(blobmsg_data(tb
[NOTIFY_IFNAME
]), dev_create
));
273 state
->proto
.iface
->l3_dev
= &state
->l3_dev
;
274 device_claim(&state
->l3_dev
);
277 ip
= &state
->proto
.iface
->proto_ip
;
278 interface_update_start(state
->proto
.iface
);
280 if ((cur
= tb
[NOTIFY_IPADDR
]) != NULL
)
281 proto_shell_parse_addr_list(ip
, cur
, false, addr_ext
);
283 if ((cur
= tb
[NOTIFY_IP6ADDR
]) != NULL
)
284 proto_shell_parse_addr_list(ip
, cur
, true, addr_ext
);
286 if ((cur
= tb
[NOTIFY_ROUTES
]) != NULL
)
287 proto_shell_parse_route_list(state
->proto
.iface
, cur
, false);
289 if ((cur
= tb
[NOTIFY_ROUTES6
]) != NULL
)
290 proto_shell_parse_route_list(state
->proto
.iface
, cur
, true);
292 if ((cur
= tb
[NOTIFY_DNS
]) != NULL
)
293 interface_add_dns_server_list(ip
, cur
);
295 if ((cur
= tb
[NOTIFY_DNS_SEARCH
]) != NULL
)
296 interface_add_dns_search_list(ip
, cur
);
298 interface_update_complete(state
->proto
.iface
);
300 state
->proto
.proto_event(&state
->proto
, IFPEV_UP
);
306 fill_string_list(struct blob_attr
*attr
, char **argv
, int max
)
308 struct blob_attr
*cur
;
315 blobmsg_for_each_attr(cur
, attr
, rem
) {
316 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
319 if (!blobmsg_check_attr(cur
, NULL
))
322 argv
[argc
++] = blobmsg_data(cur
);
333 proto_shell_run_command(struct proto_shell_state
*state
, struct blob_attr
**tb
)
335 static char *argv
[64];
336 static char *env
[32];
338 if (!tb
[NOTIFY_COMMAND
])
341 if (!fill_string_list(tb
[NOTIFY_COMMAND
], argv
, ARRAY_SIZE(argv
)))
344 if (!fill_string_list(tb
[NOTIFY_ENV
], env
, ARRAY_SIZE(env
)))
347 netifd_start_process((const char **) argv
, (char **) env
, &state
->proto_task
);
352 return UBUS_STATUS_INVALID_ARGUMENT
;
356 proto_shell_kill_command(struct proto_shell_state
*state
, struct blob_attr
**tb
)
358 unsigned int signal
= ~0;
360 if (tb
[NOTIFY_SIGNAL
])
361 signal
= blobmsg_get_u32(tb
[NOTIFY_SIGNAL
]);
366 if (state
->proto_task
.uloop
.pending
) {
367 kill(state
->proto_task
.uloop
.pid
, signal
);
368 state
->teardown_wait_task
= true;
375 proto_shell_notify(struct interface_proto_state
*proto
, struct blob_attr
*attr
)
377 struct proto_shell_state
*state
;
378 struct blob_attr
*tb
[__NOTIFY_LAST
];
380 state
= container_of(proto
, struct proto_shell_state
, proto
);
382 blobmsg_parse(notify_attr
, __NOTIFY_LAST
, tb
, blob_data(attr
), blob_len(attr
));
383 if (!tb
[NOTIFY_ACTION
])
384 return UBUS_STATUS_INVALID_ARGUMENT
;
386 switch(blobmsg_get_u32(tb
[NOTIFY_ACTION
])) {
388 return proto_shell_update_link(state
, tb
);
390 return proto_shell_run_command(state
, tb
);
392 return proto_shell_kill_command(state
, tb
);
394 return UBUS_STATUS_INVALID_ARGUMENT
;
398 static struct interface_proto_state
*
399 proto_shell_attach(const struct proto_handler
*h
, struct interface
*iface
,
400 struct blob_attr
*attr
)
402 struct proto_shell_state
*state
;
404 state
= calloc(1, sizeof(*state
));
405 state
->config
= malloc(blob_pad_len(attr
));
409 memcpy(state
->config
, attr
, blob_pad_len(attr
));
410 state
->proto
.free
= proto_shell_free
;
411 state
->proto
.notify
= proto_shell_notify
;
412 state
->proto
.cb
= proto_shell_handler
;
413 state
->setup_timeout
.cb
= proto_shell_setup_timeout_cb
;
414 state
->setup_task
.cb
= proto_shell_setup_cb
;
415 state
->setup_task
.dir_fd
= proto_fd
.fd
;
416 state
->setup_task
.log_prefix
= iface
->name
;
417 state
->teardown_task
.cb
= proto_shell_teardown_cb
;
418 state
->teardown_task
.dir_fd
= proto_fd
.fd
;
419 state
->teardown_task
.log_prefix
= iface
->name
;
420 state
->proto_task
.cb
= proto_shell_task_cb
;
421 state
->proto_task
.dir_fd
= proto_fd
.fd
;
422 state
->proto_task
.log_prefix
= iface
->name
;
423 state
->handler
= container_of(h
, struct proto_shell_handler
, proto
);
425 return &state
->proto
;
433 check_type(json_object
*obj
, json_type type
)
438 if (json_object_get_type(obj
) != type
)
444 static inline json_object
*
445 get_field(json_object
*obj
, const char *name
, json_type type
)
447 return check_type(json_object_object_get(obj
, name
), type
);
451 proto_shell_parse_config(struct config_param_list
*config
, json_object
*obj
)
453 struct blobmsg_policy
*attrs
;
454 char *str_buf
, *str_cur
;
458 config
->n_params
= json_object_array_length(obj
);
459 attrs
= calloc(1, sizeof(*attrs
) * config
->n_params
);
463 config
->params
= attrs
;
464 for (i
= 0; i
< config
->n_params
; i
++) {
465 json_object
*cur
, *name
, *type
;
467 cur
= check_type(json_object_array_get_idx(obj
, i
), json_type_array
);
471 name
= check_type(json_object_array_get_idx(cur
, 0), json_type_string
);
475 type
= check_type(json_object_array_get_idx(cur
, 1), json_type_int
);
479 attrs
[i
].name
= json_object_get_string(name
);
480 attrs
[i
].type
= json_object_get_int(type
);
481 if (attrs
[i
].type
> BLOBMSG_TYPE_LAST
)
484 str_len
+= strlen(attrs
[i
].name
) + 1;
487 str_buf
= malloc(str_len
);
492 for (i
= 0; i
< config
->n_params
; i
++) {
493 const char *name
= attrs
[i
].name
;
495 attrs
[i
].name
= str_cur
;
496 str_cur
+= sprintf(str_cur
, "%s", name
) + 1;
503 config
->n_params
= 0;
508 proto_shell_add_handler(const char *script
, json_object
*obj
)
510 struct proto_shell_handler
*handler
;
511 struct proto_handler
*proto
;
512 json_object
*config
, *tmp
;
516 if (!check_type(obj
, json_type_object
))
519 tmp
= get_field(obj
, "name", json_type_string
);
523 name
= json_object_get_string(tmp
);
525 handler
= calloc(1, sizeof(*handler
) +
531 strcpy(handler
->script_name
, script
);
533 str
= handler
->script_name
+ strlen(handler
->script_name
) + 1;
536 proto
= &handler
->proto
;
538 proto
->config_params
= &handler
->config
;
539 proto
->attach
= proto_shell_attach
;
541 tmp
= get_field(obj
, "no-device", json_type_boolean
);
542 if (tmp
&& json_object_get_boolean(tmp
))
543 handler
->proto
.flags
|= PROTO_FLAG_NODEV
;
545 config
= get_field(obj
, "config", json_type_array
);
547 handler
->config_buf
= proto_shell_parse_config(&handler
->config
, config
);
549 DPRINTF("Add handler for script %s: %s\n", script
, proto
->name
);
550 add_proto_handler(proto
);
553 static void proto_shell_add_script(const char *name
)
555 struct json_tokener
*tok
= NULL
;
557 static char buf
[512];
562 #define DUMP_SUFFIX " '' dump"
564 cmd
= alloca(strlen(name
) + 1 + sizeof(DUMP_SUFFIX
));
565 sprintf(cmd
, "%s" DUMP_SUFFIX
, name
);
572 start
= fgets(buf
, sizeof(buf
), f
);
579 tok
= json_tokener_new();
581 obj
= json_tokener_parse_ex(tok
, start
, len
);
582 if (!is_error(obj
)) {
583 proto_shell_add_handler(name
, obj
);
584 json_object_put(obj
);
585 json_tokener_free(tok
);
587 } else if (start
[len
- 1] == '\n') {
588 json_tokener_free(tok
);
591 } while (!feof(f
) && !ferror(f
));
594 json_tokener_free(tok
);
599 static void __init
proto_shell_init(void)
605 main_fd
= open(".", O_RDONLY
| O_DIRECTORY
);
609 if (chdir(main_path
)) {
610 perror("chdir(main path)");
614 if (chdir("./proto"))
617 proto_fd
.fd
= open(".", O_RDONLY
| O_DIRECTORY
);
621 netifd_fd_add(&proto_fd
);
622 glob("./*.sh", 0, NULL
, &g
);
623 for (i
= 0; i
< g
.gl_pathc
; i
++)
624 proto_shell_add_script(g
.gl_pathv
[i
]);