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rpcd-mod-lxc: add lxc-create ubus bindings

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Example call:

$ ubus call lxc create '{ "name": "bar", "template": "download", "args": [ "--no-validate", "--dist", "debian", "--release", "sid", "--arch", "i386" ] }'

Signed-off-by: Luka Perkov <luka@openwrt.org>
This commit is contained in:
Luka Perkov 2014-11-03 16:53:13 +01:00
parent 942a694238
commit ceceff5b33
1 changed files with 77 additions and 0 deletions
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77
utils/rpcd-mod-lxc/files/lxc.c
View file

@ -53,6 +53,15 @@ enum {
__RPC_LXC_RENAME_MAX,
};
enum {
RPC_LXC_CREATE_NAME,
RPC_LXC_CREATE_CONFIG,
RPC_LXC_CREATE_TEMPLATE,
RPC_LXC_CREATE_FLAGS,
RPC_LXC_CREATE_ARGS,
__RPC_LXC_CREATE_MAX,
};
static const struct blobmsg_policy rpc_lxc_min_policy[__RPC_LXC_MAX] = {
[RPC_LXC_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
[RPC_LXC_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
@ -70,6 +79,14 @@ static const struct blobmsg_policy rpc_lxc_rename_policy[__RPC_LXC_RENAME_MAX] =
[RPC_LXC_RENAME_NEWNAME] = { .name = "newname", .type = BLOBMSG_TYPE_STRING },
};
static const struct blobmsg_policy rpc_lxc_create_policy[__RPC_LXC_CREATE_MAX] = {
[RPC_LXC_CREATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
[RPC_LXC_CREATE_CONFIG] = { .name = "config", .type = BLOBMSG_TYPE_STRING },
[RPC_LXC_CREATE_TEMPLATE] = { .name = "template", .type = BLOBMSG_TYPE_STRING },
[RPC_LXC_CREATE_FLAGS] = { .name = "flags", .type = BLOBMSG_TYPE_INT32 },
[RPC_LXC_CREATE_ARGS] = { .name = "args", .type = BLOBMSG_TYPE_ARRAY },
};
static struct rpc_lxc *
rpc_lxc_init(struct blob_attr *tb[__RPC_LXC_MAX])
{
@ -335,6 +352,65 @@ out:
return rc;
}
static int
rpc_lxc_create(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_CREATE_MAX];
struct rpc_lxc *l = NULL;
int rc;
char *template = "none";
int flags = 0;
char **args = NULL;
blobmsg_parse(rpc_lxc_create_policy, __RPC_LXC_CREATE_MAX, tb, blob_data(msg), blob_len(msg));
l = rpc_lxc_init(tb);
if (!l) return UBUS_STATUS_INVALID_ARGUMENT;
if (tb[RPC_LXC_CREATE_TEMPLATE])
template = blobmsg_data(tb[RPC_LXC_CREATE_TEMPLATE]);
if (tb[RPC_LXC_CREATE_FLAGS])
flags = blobmsg_get_u32(tb[RPC_LXC_CREATE_FLAGS]);
if (tb[RPC_LXC_CREATE_ARGS]) {
struct blob_attr *cur;
int num, rem;
num = blobmsg_check_array(tb[RPC_LXC_CREATE_ARGS], BLOBMSG_TYPE_STRING);
// trailing NULL is needed
args = calloc(num + 1, sizeof(char *));
if (!args) {
rc = UBUS_STATUS_UNKNOWN_ERROR;
goto out;
}
num = 0;
blobmsg_for_each_attr(cur, tb[RPC_LXC_CREATE_ARGS], rem)
{
if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
continue;
args[num++] = (char *) blobmsg_data(cur);
}
}
if (!l->container->create(l->container, template, NULL, NULL, flags, args)) {
rc = UBUS_STATUS_INVALID_ARGUMENT;
goto out;
}
rc = UBUS_STATUS_OK;
out:
rpc_lxc_done(l);
free(args);
return rc;
}
static int
rpc_lxc_destroy(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
@ -405,6 +481,7 @@ rpc_lxc_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx)
UBUS_METHOD("freeze", rpc_lxc_freeze, rpc_lxc_min_policy),
UBUS_METHOD("unfreeze", rpc_lxc_unfreeze, 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),
UBUS_METHOD_NOARG("list", rpc_lxc_list),
};