[LEDE-DEV] [PATCH packages] rpcd-mod-lxc: add "info" ubus method (similar to the lxc-info)
Rafał Miłecki
zajec5 at gmail.com
Tue Nov 7 03:02:53 PST 2017
From: Rafał Miłecki <rafal at milecki.pl>
This method allows getting basic info about a queried container. It's
based on the lxc-info command-line tool.
Example output:
> ubus call lxc info '{ "name": "foo" }'
{
"name": "foo",
"state": "RUNNING",
"pid": 2946,
"ips": [
"192.168.0.124"
]
}
Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
utils/rpcd-mod-lxc/files/lxc.c | 43 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/utils/rpcd-mod-lxc/files/lxc.c b/utils/rpcd-mod-lxc/files/lxc.c
index 0d52f167..6db1b311 100644
--- a/utils/rpcd-mod-lxc/files/lxc.c
+++ b/utils/rpcd-mod-lxc/files/lxc.c
@@ -317,6 +317,48 @@ out:
}
static int
+rpc_lxc_info(struct ubus_context *ctx, struct ubus_object *obj,
+ struct ubus_request_data *req, const char *method,
+ struct blob_attr *msg)
+{
+ struct blob_attr *tb[__RPC_LXC_RENAME_MAX];
+ struct rpc_lxc *l = NULL;
+ char **addresses;
+ void *k;
+ pid_t initpid;
+
+ blobmsg_parse(rpc_lxc_min_policy, __RPC_LXC_MAX, tb, blob_data(msg), blob_len(msg));
+
+ l = rpc_lxc_init(tb);
+ if (!l)
+ return UBUS_STATUS_INVALID_ARGUMENT;
+ blob_buf_init(&buf, 0);
+
+ blobmsg_add_string(&buf, "name", l->container->name);
+
+ blobmsg_add_string(&buf, "state", l->container->state(l->container));
+
+ initpid = l->container->init_pid(l->container);
+ if (initpid >= 0)
+ blobmsg_add_u32(&buf, "pid", initpid);
+
+ k = blobmsg_open_array(&buf, "ips");
+ addresses = l->container->get_ips(l->container, NULL, NULL, 0);
+ if (addresses) {
+ int i;
+
+ for (i = 0; addresses[i]; i++)
+ blobmsg_add_string(&buf, "ip", addresses[i]);
+ }
+ blobmsg_close_array(&buf, k);
+
+ ubus_send_reply(ctx, req, buf.head);
+ rpc_lxc_done(l);
+
+ return UBUS_STATUS_OK;
+}
+
+static int
rpc_lxc_rename(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
@@ -480,6 +522,7 @@ rpc_lxc_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx)
UBUS_METHOD("stop", rpc_lxc_stop, rpc_lxc_min_policy),
UBUS_METHOD("freeze", rpc_lxc_freeze, rpc_lxc_min_policy),
UBUS_METHOD("unfreeze", rpc_lxc_unfreeze, rpc_lxc_min_policy),
+ UBUS_METHOD("info", rpc_lxc_info, rpc_lxc_min_policy),
UBUS_METHOD("rename", rpc_lxc_rename, rpc_lxc_rename_policy),
UBUS_METHOD("create", rpc_lxc_create, rpc_lxc_create_policy),
UBUS_METHOD("destroy", rpc_lxc_destroy, rpc_lxc_min_policy),
--
2.11.0
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