8 #include <libubox/blobmsg_json.h>
11 #include "interface.h"
12 #include "interface-ip.h"
15 static LIST_HEAD(handlers
);
18 struct proto_shell_handler
{
19 struct list_head list
;
20 struct proto_handler proto
;
21 struct config_param_list config
;
26 struct proto_shell_state
{
27 struct interface_proto_state proto
;
28 struct proto_shell_handler
*handler
;
29 struct blob_attr
*config
;
32 static int run_script(const char **argv
)
36 if ((pid
= fork()) < 0)
41 execvp(argv
[0], (char **) argv
);
45 if (waitpid(pid
, &ret
, 0) == -1)
55 proto_shell_handler(struct interface_proto_state
*proto
,
56 enum interface_proto_cmd cmd
, bool force
)
58 struct proto_shell_state
*state
;
59 struct proto_shell_handler
*handler
;
64 state
= container_of(proto
, struct proto_shell_state
, proto
);
65 handler
= state
->handler
;
67 config
= blobmsg_format_json(state
->config
, true);
71 argv
[0] = handler
->script_name
;
72 argv
[1] = handler
->proto
.name
;
81 case PROTO_CMD_TEARDOWN
:
82 ret
= run_script(argv
);
92 proto_shell_free(struct interface_proto_state
*proto
)
94 struct proto_shell_state
*state
;
96 state
= container_of(proto
, struct proto_shell_state
, proto
);
101 struct interface_proto_state
*
102 proto_shell_attach(const struct proto_handler
*h
, struct interface
*iface
,
103 struct blob_attr
*attr
)
105 struct proto_shell_state
*state
;
107 state
= calloc(1, sizeof(*state
));
108 state
->config
= malloc(blob_pad_len(attr
));
112 memcpy(state
->config
, attr
, blob_pad_len(attr
));
113 state
->proto
.free
= proto_shell_free
;
114 state
->proto
.cb
= proto_shell_handler
;
115 state
->handler
= container_of(h
, struct proto_shell_handler
, proto
);
117 return &state
->proto
;
125 check_type(json_object
*obj
, json_type type
)
130 if (json_object_get_type(obj
) != type
)
136 static inline json_object
*
137 get_field(json_object
*obj
, const char *name
, json_type type
)
139 return check_type(json_object_object_get(obj
, name
), type
);
143 proto_shell_parse_config(struct config_param_list
*config
, json_object
*obj
)
145 struct blobmsg_policy
*attrs
;
146 char *str_buf
, *str_cur
;
150 attrs
= calloc(1, sizeof(*attrs
));
154 config
->n_params
= json_object_array_length(obj
);
155 config
->params
= attrs
;
156 for (i
= 0; i
< config
->n_params
; i
++) {
157 json_object
*cur
, *name
, *type
;
159 cur
= check_type(json_object_array_get_idx(obj
, i
), json_type_array
);
163 name
= check_type(json_object_array_get_idx(cur
, 0), json_type_string
);
167 type
= check_type(json_object_array_get_idx(cur
, 1), json_type_int
);
171 attrs
[i
].name
= json_object_get_string(name
);
172 attrs
[i
].type
= json_object_get_int(type
);
173 if (attrs
[i
].type
> BLOBMSG_TYPE_LAST
)
176 str_len
+= strlen(attrs
[i
].name
+ 1);
179 str_buf
= malloc(str_len
);
184 for (i
= 0; i
< config
->n_params
; i
++) {
185 const char *name
= attrs
[i
].name
;
187 attrs
[i
].name
= str_cur
;
188 str_cur
+= sprintf(str_cur
, "%s", name
) + 1;
195 config
->n_params
= 0;
200 proto_shell_add_handler(const char *script
, json_object
*obj
)
202 struct proto_shell_handler
*handler
;
203 struct proto_handler
*proto
;
204 json_object
*config
, *tmp
;
208 if (!check_type(obj
, json_type_object
))
211 tmp
= get_field(obj
, "name", json_type_string
);
215 name
= json_object_get_string(tmp
);
217 handler
= calloc(1, sizeof(*handler
) +
223 strcpy(handler
->script_name
, script
);
225 str
= handler
->script_name
+ strlen(handler
->script_name
) + 1;
228 proto
= &handler
->proto
;
230 proto
->config_params
= &handler
->config
;
231 proto
->attach
= proto_shell_attach
;
233 config
= get_field(obj
, "config", json_type_array
);
235 handler
->config_buf
= proto_shell_parse_config(&handler
->config
, config
);
237 DPRINTF("Add handler for script %s: %s\n", script
, proto
->name
);
238 add_proto_handler(proto
);
241 static void proto_shell_add_script(const char *name
)
243 struct json_tokener
*tok
= NULL
;
245 static char buf
[512];
246 char *start
, *end
, *cmd
;
250 #define DUMP_SUFFIX " '' dump"
252 cmd
= alloca(strlen(name
) + 1 + sizeof(DUMP_SUFFIX
));
253 sprintf(cmd
, "%s" DUMP_SUFFIX
, name
);
260 buflen
= fread(buf
, 1, sizeof(buf
) - 1, f
);
267 end
= memchr(start
, '\n', len
);
272 tok
= json_tokener_new();
274 obj
= json_tokener_parse_ex(tok
, start
, len
);
275 if (!is_error(obj
)) {
276 proto_shell_add_handler(name
, obj
);
277 json_object_put(obj
);
278 json_tokener_free(tok
);
284 len
= buflen
- (start
- buf
);
287 } while (!feof(f
) && !ferror(f
));
290 json_tokener_free(tok
);
295 void __init
proto_shell_init(void)
301 main_fd
= open(".", O_RDONLY
| O_DIRECTORY
);
305 if (chdir(main_path
)) {
306 perror("chdir(main path)");
310 if (chdir("./proto"))
313 proto_fd
= open(".", O_RDONLY
| O_DIRECTORY
);
317 glob("./*.sh", 0, NULL
, &g
);
318 for (i
= 0; i
< g
.gl_pathc
; i
++)
319 proto_shell_add_script(g
.gl_pathv
[i
]);