88 lines
3.1 KiB
C
88 lines
3.1 KiB
C
/*
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* rpcd - UBUS RPC server
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*
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* Copyright (C) 2013-2014 Jo-Philipp Wich <jow@openwrt.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __RPC_EXEC_H
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#define __RPC_EXEC_H
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#include <libubus.h>
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#include <libubox/blobmsg.h>
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#include <libubox/ustream.h>
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#define RPC_EXEC_MAX_SIZE (4096 * 64)
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#define RPC_EXEC_MAX_RUNTIME (30 * 1000)
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#define ustream_for_each_read_buffer(stream, ptr, len) \
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for (ptr = ustream_get_read_buf(stream, &len); \
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ptr != NULL && len > 0; \
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ustream_consume(stream, len), ptr = ustream_get_read_buf(stream, &len))
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#define ustream_declare_read(us, fd, name) \
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do { \
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us.stream.string_data = true; \
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us.stream.r.buffer_len = 4096; \
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us.stream.r.max_buffers = RPC_EXEC_MAX_SIZE / 4096; \
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us.stream.notify_read = rpc_exec_##name##_read_cb; \
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us.stream.notify_state = rpc_exec_##name##_state_cb; \
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ustream_fd_init(&us, fd); \
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} while(0)
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#define ustream_declare_write(us, fd, name) \
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do { \
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us.stream.string_data = true; \
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us.stream.w.buffer_len = 4096; \
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us.stream.w.max_buffers = RPC_EXEC_MAX_SIZE / 4096; \
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us.stream.notify_write = rpc_exec_##name##_write_cb; \
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ustream_fd_init(&us, fd); \
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} while(0)
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typedef int (*rpc_exec_write_cb_t)(struct ustream *, void *);
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typedef int (*rpc_exec_read_cb_t)(struct blob_buf *, char *, int, void *);
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typedef int (*rpc_exec_done_cb_t)(struct blob_buf *, int, void *);
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struct rpc_exec_context {
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struct ubus_context *context;
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struct ubus_request_data request;
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struct uloop_timeout timeout;
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struct uloop_process process;
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struct ustream_fd ipipe;
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struct ustream_fd opipe;
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struct ustream_fd epipe;
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int outlen;
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char *out;
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int errlen;
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char *err;
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int stat;
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void *priv;
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bool blob_array;
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void *blob_cookie;
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struct blob_buf blob;
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rpc_exec_write_cb_t stdin_cb;
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rpc_exec_read_cb_t stdout_cb;
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rpc_exec_read_cb_t stderr_cb;
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rpc_exec_done_cb_t finish_cb;
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};
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const char *rpc_exec_lookup(const char *cmd);
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int rpc_exec(const char **args, rpc_exec_write_cb_t in,
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rpc_exec_read_cb_t out, rpc_exec_read_cb_t err,
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rpc_exec_done_cb_t end, void *priv, struct ubus_context *ctx,
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struct ubus_request_data *req);
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#endif
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