iwinfo: add 802.11ac hw mode

[project/rpcd.git] / file.c

diff --git a/file.c b/file.c
index ddbd61b..e4c957e 100644 (file)
--- a/file.c
+++ b/file.c
@@ -1,7 +1,7 @@
 /*
- * luci-rpcd - LuCI UBUS RPC server
+ * rpcd - UBUS RPC server
  *
- *   Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
+ *   Copyright (C) 2013-2014 Jo-Philipp Wich <jow@openwrt.org>
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -25,8 +25,46 @@
 #include <dirent.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
+#include <libubus.h>
+#include <libubox/blobmsg.h>
+#include <libubox/ustream.h>
+
+#include <rpcd/plugin.h>
+
+/* limit of sys & proc files */
+#define RPC_FILE_MIN_SIZE              (128)
+
+/* limit of regular files and command output data */
+#define RPC_FILE_MAX_SIZE              (4096 * 64)
+#define RPC_FILE_MAX_RUNTIME   (3 * 1000)
+
+#define ustream_for_each_read_buffer(stream, ptr, len) \
+       for (ptr = ustream_get_read_buf(stream, &len);     \
+            ptr != NULL && len > 0;                       \
+            ustream_consume(stream, len), ptr = ustream_get_read_buf(stream, &len))
+
+#define ustream_declare(us, fd, name)                     \
+       us.stream.string_data   = true;                       \
+       us.stream.r.buffer_len  = 4096;                       \
+       us.stream.r.max_buffers = RPC_FILE_MAX_SIZE / 4096;   \
+       us.stream.notify_read   = rpc_file_##name##_read_cb;  \
+       us.stream.notify_state  = rpc_file_##name##_state_cb; \
+       ustream_fd_init(&us, fd);
+
+struct rpc_file_exec_context {
+       struct ubus_context *context;
+       struct ubus_request_data request;
+       struct uloop_timeout timeout;
+       struct uloop_process process;
+       struct ustream_fd opipe;
+       struct ustream_fd epipe;
+       int outlen;
+       char *out;
+       int errlen;
+       char *err;
+       int stat;
+};
 
-#include "file.h"
 
 static struct blob_buf buf;
 
@@ -49,7 +87,7 @@ enum {
 };
 
 static const struct blobmsg_policy rpc_exec_policy[__RPC_E_MAX] = {
-       [RPC_E_CMD] = { .name = "command", .type = BLOBMSG_TYPE_STRING },
+       [RPC_E_CMD]  = { .name = "command", .type = BLOBMSG_TYPE_STRING },
        [RPC_E_PARM] = { .name = "params",  .type = BLOBMSG_TYPE_ARRAY  },
        [RPC_E_ENV]  = { .name = "env",     .type = BLOBMSG_TYPE_TABLE  },
 };
@@ -165,21 +203,25 @@ rpc_file_write(struct ubus_context *ctx, struct ubus_object *obj,
                struct blob_attr *msg)
 {
        int fd;
-       char *path;
-       struct stat s;
-       struct blob_attr **tb;
+       struct blob_attr *tb[__RPC_F_MAX];
 
-       if (!(tb = rpc_check_path(msg, &path, &s)))
-               return rpc_errno_status();
+       blobmsg_parse(rpc_file_policy, __RPC_F_MAX, tb,
+                     blob_data(msg), blob_len(msg));
 
-       if (!tb[RPC_F_DATA])
+       if (!tb[RPC_F_PATH] || !tb[RPC_F_DATA])
                return UBUS_STATUS_INVALID_ARGUMENT;
 
-       if ((fd = open(path, O_WRONLY)) < 0)
+       if ((fd = open(blobmsg_data(tb[RPC_F_PATH]), O_CREAT | O_TRUNC | O_WRONLY)) < 0)
+               return rpc_errno_status();
+
+       if (write(fd, blobmsg_data(tb[RPC_F_DATA]), blobmsg_data_len(tb[RPC_F_DATA])) < 0)
+               return rpc_errno_status();
+
+       if (fsync(fd) < 0)
                return rpc_errno_status();
 
-       write(fd, blobmsg_data(tb[RPC_F_DATA]), blobmsg_data_len(tb[RPC_F_DATA]));
        close(fd);
+       sync();
 
        return 0;
 }
@@ -381,7 +423,7 @@ 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);
+               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);
@@ -391,7 +433,7 @@ 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);
+               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);
@@ -401,7 +443,7 @@ 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);
+               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);
@@ -411,7 +453,7 @@ 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);
+               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);
@@ -419,7 +461,7 @@ rpc_file_exec_epipe_state_cb(struct ustream *s)
 
 static int
 rpc_file_exec_run(const char *cmd,
-                             const struct blob_attr *arg, const struct blob_attr *env,
+                  const struct blob_attr *arg, const struct blob_attr *env,
                   struct ubus_context *ctx, struct ubus_request_data *req)
 {
        pid_t pid;
@@ -542,11 +584,12 @@ rpc_file_exec(struct ubus_context *ctx, struct ubus_object *obj,
                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);
+                                             tb[RPC_E_PARM], tb[RPC_E_ENV], ctx, req);
 }
 
 
-int rpc_file_api_init(struct ubus_context *ctx)
+static int
+rpc_file_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx)
 {
        static const struct ubus_method file_methods[] = {
                UBUS_METHOD("read",    rpc_file_read,  rpc_file_policy),
@@ -568,3 +611,7 @@ int rpc_file_api_init(struct ubus_context *ctx)
 
        return ubus_add_object(ctx, &obj);
 }
+
+struct rpc_plugin rpc_plugin = {
+       .init = rpc_file_api_init
+};