2 #include <sys/socket.h>
11 INSTANCE_ATTR_COMMAND
,
18 static const struct blobmsg_policy instance_attr
[__INSTANCE_ATTR_MAX
] = {
19 [INSTANCE_ATTR_COMMAND
] = { "command", BLOBMSG_TYPE_ARRAY
},
20 [INSTANCE_ATTR_ENV
] = { "env", BLOBMSG_TYPE_TABLE
},
21 [INSTANCE_ATTR_DATA
] = { "data", BLOBMSG_TYPE_TABLE
},
22 [INSTANCE_ATTR_NETDEV
] = { "netdev", BLOBMSG_TYPE_ARRAY
},
25 struct instance_netdev
{
26 struct blobmsg_list_node node
;
31 instance_run(struct service_instance
*in
)
33 struct blobmsg_list_node
*var
;
34 struct blob_attr
*cur
;
36 int argc
= 1; /* NULL terminated */
39 blobmsg_for_each_attr(cur
, in
->command
, rem
)
42 blobmsg_list_for_each(&in
->env
, var
)
43 setenv(blobmsg_name(var
->data
), blobmsg_data(var
->data
), 1);
45 argv
= alloca(sizeof(char *) * argc
);
48 blobmsg_for_each_attr(cur
, in
->command
, rem
)
49 argv
[argc
++] = blobmsg_data(cur
);
52 execvp(argv
[0], argv
);
57 instance_start(struct service_instance
*in
)
77 DPRINTF("Started instance %s::%s\n", in
->srv
->name
, in
->name
);
79 uloop_process_add(&in
->proc
);
83 instance_timeout(struct uloop_timeout
*t
)
85 struct service_instance
*in
;
87 in
= container_of(t
, struct service_instance
, timeout
);
88 kill(in
->proc
.pid
, SIGKILL
);
89 uloop_process_delete(&in
->proc
);
90 in
->proc
.cb(&in
->proc
, -1);
94 instance_exit(struct uloop_process
*p
, int ret
)
96 struct service_instance
*in
;
98 in
= container_of(p
, struct service_instance
, proc
);
99 DPRINTF("Instance %s::%s exit with error code %d\n", in
->srv
->name
, in
->name
, ret
);
100 uloop_timeout_cancel(&in
->timeout
);
106 instance_stop(struct service_instance
*in
, bool restart
)
108 if (!in
->proc
.pending
)
111 kill(in
->proc
.pid
, SIGTERM
);
115 instance_config_changed(struct service_instance
*in
, struct service_instance
*in_new
)
120 if (!blob_attr_equal(in
->command
, in_new
->command
))
123 if (!blobmsg_list_equal(&in
->env
, &in_new
->env
))
126 if (!blobmsg_list_equal(&in
->data
, &in_new
->data
))
129 if (!blobmsg_list_equal(&in
->netdev
, &in_new
->netdev
))
136 instance_netdev_cmp(struct blobmsg_list_node
*l1
, struct blobmsg_list_node
*l2
)
138 struct instance_netdev
*n1
= container_of(l1
, struct instance_netdev
, node
);
139 struct instance_netdev
*n2
= container_of(l2
, struct instance_netdev
, node
);
141 return n1
->ifindex
== n2
->ifindex
;
145 instance_netdev_update(struct blobmsg_list_node
*l
)
147 struct instance_netdev
*n
= container_of(l
, struct instance_netdev
, node
);
149 n
->ifindex
= if_nametoindex(n
->node
.avl
.key
);
153 instance_config_parse(struct service_instance
*in
)
155 struct blob_attr
*tb
[__INSTANCE_ATTR_MAX
];
156 struct blob_attr
*cur
, *cur2
;
160 blobmsg_parse(instance_attr
, __INSTANCE_ATTR_MAX
, tb
,
161 blobmsg_data(in
->config
), blobmsg_data_len(in
->config
));
163 cur
= tb
[INSTANCE_ATTR_COMMAND
];
167 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
170 blobmsg_for_each_attr(cur2
, cur
, rem
) {
179 if ((cur
= tb
[INSTANCE_ATTR_ENV
])) {
180 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
183 blobmsg_list_fill(&in
->env
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
186 if ((cur
= tb
[INSTANCE_ATTR_DATA
])) {
187 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
190 blobmsg_list_fill(&in
->data
, blobmsg_data(cur
), blobmsg_data_len(cur
), false);
193 if ((cur
= tb
[INSTANCE_ATTR_NETDEV
])) {
194 struct blobmsg_list_node
*ndev
;
196 if (!blobmsg_check_attr_list(cur
, BLOBMSG_TYPE_STRING
))
199 blobmsg_list_fill(&in
->netdev
, blobmsg_data(cur
), blobmsg_data_len(cur
), true);
200 blobmsg_list_for_each(&in
->netdev
, ndev
)
201 instance_netdev_update(ndev
);
208 instance_config_cleanup(struct service_instance
*in
)
210 blobmsg_list_free(&in
->env
);
211 blobmsg_list_free(&in
->data
);
212 blobmsg_list_free(&in
->netdev
);
216 instance_config_move(struct service_instance
*in
, struct service_instance
*in_src
)
218 instance_config_cleanup(in
);
219 blobmsg_list_move(&in
->env
, &in_src
->env
);
220 blobmsg_list_move(&in
->data
, &in_src
->data
);
221 blobmsg_list_move(&in
->netdev
, &in_src
->netdev
);
222 in
->command
= in_src
->command
;
223 in
->name
= in_src
->name
;
224 in
->node
.avl
.key
= in_src
->node
.avl
.key
;
225 in
->config
= in_src
->config
;
226 in_src
->config
= NULL
;
230 instance_update(struct service_instance
*in
, struct service_instance
*in_new
)
232 bool changed
= instance_config_changed(in
, in_new
);
238 instance_stop(in
, true);
239 instance_config_move(in
, in_new
);
244 instance_free(struct service_instance
*in
)
246 uloop_process_delete(&in
->proc
);
247 uloop_timeout_cancel(&in
->timeout
);
248 instance_config_cleanup(in
);
253 instance_init(struct service_instance
*in
, struct service
*s
, struct blob_attr
*config
)
256 in
->name
= blobmsg_name(config
);
258 in
->timeout
.cb
= instance_timeout
;
259 in
->proc
.cb
= instance_exit
;
261 blobmsg_list_init(&in
->netdev
, struct instance_netdev
, node
, instance_netdev_cmp
);
262 blobmsg_list_simple_init(&in
->env
);
263 blobmsg_list_simple_init(&in
->data
);
264 in
->valid
= instance_config_parse(in
);
267 void instance_dump(struct blob_buf
*b
, struct service_instance
*in
)
271 i
= blobmsg_open_table(b
, in
->name
);
272 blobmsg_add_u8(b
, "running", in
->proc
.pending
);
273 if (in
->proc
.pending
)
274 blobmsg_add_u32(b
, "pid", in
->proc
.pid
);
275 blobmsg_add_blob(b
, in
->command
);
276 blobmsg_close_table(b
, i
);