+static void
+rpc_file_exec_opipe_read_cb(struct ustream *s, int bytes)
+{
+ struct rpc_file_exec_context *c =
+ container_of(s, struct rpc_file_exec_context, opipe.stream);
+
+ if (ustream_read_buf_full(s))
+ rpc_file_exec_reply(c, UBUS_STATUS_NOT_SUPPORTED);
+}
+
+static void
+rpc_file_exec_epipe_read_cb(struct ustream *s, int bytes)
+{
+ struct rpc_file_exec_context *c =
+ container_of(s, struct rpc_file_exec_context, epipe.stream);
+
+ if (ustream_read_buf_full(s))
+ rpc_file_exec_reply(c, UBUS_STATUS_NOT_SUPPORTED);
+}
+
+static void
+rpc_file_exec_opipe_state_cb(struct ustream *s)
+{
+ struct rpc_file_exec_context *c =
+ container_of(s, struct rpc_file_exec_context, opipe.stream);
+
+ if (c->opipe.stream.eof && c->epipe.stream.eof)
+ rpc_file_exec_reply(c, UBUS_STATUS_OK);
+}
+
+static void
+rpc_file_exec_epipe_state_cb(struct ustream *s)
+{
+ struct rpc_file_exec_context *c =
+ container_of(s, struct rpc_file_exec_context, epipe.stream);
+
+ if (c->opipe.stream.eof && c->epipe.stream.eof)
+ rpc_file_exec_reply(c, UBUS_STATUS_OK);
+}
+
+static int
+rpc_file_exec_run(const char *cmd,
+ const struct blob_attr *arg, const struct blob_attr *env,
+ struct ubus_context *ctx, struct ubus_request_data *req)
+{
+ pid_t pid;
+
+ int opipe[2];
+ int epipe[2];
+
+ int rem;
+ struct blob_attr *cur;
+
+ char arglen;
+ char **args;
+
+ struct rpc_file_exec_context *c;
+
+ cmd = rpc_file_exec_lookup(cmd);
+
+ if (!cmd)
+ return UBUS_STATUS_NOT_FOUND;
+
+ c = malloc(sizeof(*c));
+
+ if (!c)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ if (pipe(opipe) || pipe(epipe))
+ return rpc_errno_status();
+
+ switch ((pid = fork()))
+ {
+ case -1:
+ return rpc_errno_status();
+
+ case 0:
+ uloop_done();
+
+ dup2(opipe[1], 1);
+ dup2(epipe[1], 2);
+
+ close(0);
+ close(opipe[0]);
+ close(opipe[1]);
+ close(epipe[0]);
+ close(epipe[1]);
+
+ arglen = 2;
+ args = malloc(sizeof(char *) * arglen);
+
+ if (!args)
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ args[0] = (char *)cmd;
+ args[1] = NULL;
+
+ if (arg)
+ {
+ blobmsg_for_each_attr(cur, arg, rem)
+ {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+ continue;
+
+ arglen++;
+
+ if (!(args = realloc(args, sizeof(char *) * arglen)))
+ return UBUS_STATUS_UNKNOWN_ERROR;
+
+ args[arglen-2] = blobmsg_data(cur);
+ args[arglen-1] = NULL;
+ }
+ }
+
+ if (env)
+ {
+ blobmsg_for_each_attr(cur, env, rem)
+ {
+ if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+ continue;
+
+ setenv(blobmsg_name(cur), blobmsg_data(cur), 1);
+ }
+ }
+
+ if (execv(cmd, args))
+ return rpc_errno_status();
+
+ default:
+ memset(c, 0, sizeof(*c));
+
+ ustream_declare(c->opipe, opipe[0], exec_opipe);
+ ustream_declare(c->epipe, epipe[0], exec_epipe);
+
+ c->process.pid = pid;
+ c->process.cb = rpc_file_exec_process_cb;
+ uloop_process_add(&c->process);
+
+ c->timeout.cb = rpc_file_exec_timeout_cb;
+ uloop_timeout_set(&c->timeout, RPC_FILE_MAX_RUNTIME);
+
+ close(opipe[1]);
+ close(epipe[1]);
+
+ c->context = ctx;
+ ubus_defer_request(ctx, req, &c->request);
+ }
+
+ return UBUS_STATUS_OK;
+}
+
+static int
+rpc_file_exec(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_E_MAX];
+
+ blobmsg_parse(rpc_exec_policy, __RPC_E_MAX, tb,
+ blob_data(msg), blob_len(msg));
+
+ if (!tb[RPC_E_CMD])
+ return UBUS_STATUS_INVALID_ARGUMENT;
+
+ return rpc_file_exec_run(blobmsg_data(tb[RPC_E_CMD]),
+ tb[RPC_E_PARM], tb[RPC_E_ENV], ctx, req);
+}
+
+
+static int
+rpc_file_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx)