2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <linux/types.h>
17 #include <libubox/uloop.h>
18 #include <libubox/blobmsg_json.h>
24 struct ubus_context
*_ctx
;
25 static struct blob_buf b
;
27 static const struct blobmsg_policy read_policy
=
28 { .name
= "lines", .type
= BLOBMSG_TYPE_INT32
};
30 static const struct blobmsg_policy write_policy
=
31 { .name
= "event", .type
= BLOBMSG_TYPE_STRING
};
33 static int read_log(struct ubus_context
*ctx
, struct ubus_object
*obj
,
34 struct ubus_request_data
*req
, const char *method
,
35 struct blob_attr
*msg
)
43 blobmsg_parse(&read_policy
, 1, &tb
, blob_data(msg
), blob_len(msg
));
45 count
= blobmsg_get_u32(tb
);
49 lines
= blobmsg_open_array(&b
, "lines");
51 l
= log_list(count
, NULL
);
54 entry
= blobmsg_open_table(&b
, NULL
);
55 blobmsg_add_string(&b
, "msg", l
->data
);
56 blobmsg_add_u32(&b
, "id", l
->id
);
57 blobmsg_add_u32(&b
, "priority", l
->priority
);
58 blobmsg_add_u32(&b
, "source", l
->source
);
59 blobmsg_add_u64(&b
, "time", l
->ts
.tv_sec
);
60 blobmsg_close_table(&b
, entry
);
61 l
= log_list(count
, l
);
63 blobmsg_close_table(&b
, lines
);
64 ubus_send_reply(ctx
, req
, b
.head
);
69 static int write_log(struct ubus_context
*ctx
, struct ubus_object
*obj
,
70 struct ubus_request_data
*req
, const char *method
,
71 struct blob_attr
*msg
)
77 blobmsg_parse(&write_policy
, 1, &tb
, blob_data(msg
), blob_len(msg
));
79 event
= blobmsg_get_string(tb
);
80 log_add(event
, strlen(event
) + 1, SOURCE_SYSLOG
);
87 static void log_subscribe_cb(struct ubus_context
*ctx
, struct ubus_object
*obj
)
89 notify
= obj
->has_subscribers
;
92 static const struct ubus_method log_methods
[] = {
93 { .name
= "read", .handler
= read_log
, .policy
= &read_policy
, .n_policy
= 1 },
94 { .name
= "write", .handler
= write_log
, .policy
= &write_policy
, .n_policy
= 1 },
97 static struct ubus_object_type log_object_type
=
98 UBUS_OBJECT_TYPE("log", log_methods
);
100 static struct ubus_object log_object
= {
102 .type
= &log_object_type
,
103 .methods
= log_methods
,
104 .n_methods
= ARRAY_SIZE(log_methods
),
105 .subscribe_cb
= log_subscribe_cb
,
108 void ubus_notify_log(struct log_head
*l
)
115 blob_buf_init(&b
, 0);
116 blobmsg_add_u32(&b
, "id", l
->id
);
117 blobmsg_add_u32(&b
, "priority", l
->priority
);
118 blobmsg_add_u32(&b
, "source", l
->source
);
119 blobmsg_add_u64(&b
, "time", (((__u64
) l
->ts
.tv_sec
) * 1000) + (l
->ts
.tv_nsec
/ 1000000));
121 ret
= ubus_notify(_ctx
, &log_object
, l
->data
, b
.head
, -1);
123 ERROR("Failed to notify log: %s\n", ubus_strerror(ret
));
126 void ubus_init_log(struct ubus_context
*ctx
)
132 ret
= ubus_add_object(ctx
, &log_object
);
134 ERROR("Failed to add object: %s\n", ubus_strerror(ret
));