//--------------------------------------------------------------------------------------------------
static le_result_t GetUserUid
(
le_cfg_IteratorRef_t i, ///< [in] Configuration tree iterator.
uid_t* uidPtr ///< [out] Pointer to where the user ID will be put if successful.
)
//--------------------------------------------------------------------------------------------------
{
le_result_t result;
char userName[LIMIT_MAX_USER_NAME_BYTES];
result = le_cfg_GetNodeName(i, "", userName, sizeof(userName));
if (result != LE_OK)
{
LE_CRIT("Configuration node name too long under 'system/users/'.");
return LE_OVERFLOW;
}
// Convert the user name into a user ID.
result = user_GetUid(userName, uidPtr);
if (result != LE_OK)
{
LE_CRIT("Failed to get user ID for user '%s'. (%s)", userName, LE_RESULT_TXT(result));
return LE_NOT_FOUND;
}
return LE_OK;
}
// -------------------------------------------------------------------------------------------------
static json_t* CreateJsonNodeFromIterator
(
le_cfg_IteratorRef_t iterRef ///< The iterator to read from.
)
// -------------------------------------------------------------------------------------------------
{
char nodeName[LE_CFG_NAME_LEN_BYTES] = "";
le_cfg_nodeType_t type = le_cfg_GetNodeType(iterRef, "");
le_cfg_GetNodeName(iterRef, "", nodeName, sizeof(nodeName));
json_t* nodePtr = CreateJsonNode(nodeName, NodeTypeStr(type));
switch (type)
{
case LE_CFG_TYPE_EMPTY:
json_object_set_new(nodePtr,
JSON_FIELD_TYPE,
json_string(NodeTypeStr(LE_CFG_TYPE_STEM)));
json_object_set_new(nodePtr, JSON_FIELD_CHILDREN, json_array());
break;
case LE_CFG_TYPE_BOOL:
json_object_set_new(nodePtr,
JSON_FIELD_VALUE,
json_boolean(le_cfg_GetBool(iterRef, "", false)));
break;
case LE_CFG_TYPE_STRING:
{
char strBuffer[LE_CFG_STR_LEN_BYTES] = "";
le_cfg_GetString(iterRef, "", strBuffer, LE_CFG_STR_LEN_BYTES, "");
json_object_set_new(nodePtr, JSON_FIELD_VALUE, json_string(strBuffer));
}
break;
case LE_CFG_TYPE_INT:
json_object_set_new(nodePtr,
JSON_FIELD_VALUE,
json_integer(le_cfg_GetInt(iterRef, "", false)));
break;
case LE_CFG_TYPE_FLOAT:
json_object_set_new(nodePtr,
JSON_FIELD_VALUE,
json_real(le_cfg_GetFloat(iterRef, "", false)));
break;
case LE_CFG_TYPE_STEM:
default:
// Unknown type, nothing to do
json_decref(nodePtr);
nodePtr = NULL;
break;
}
return nodePtr;
}
// -------------------------------------------------------------------------------------------------
static void DumpTreeJSON
(
le_cfg_IteratorRef_t iterRef, ///< Read the tree data from this iterator.
json_t* jsonObject ///< JSON object to hold the tree data.
)
// -------------------------------------------------------------------------------------------------
{
// Note that because this is a recursive function, the buffer here is static in order to save on
// stack space. The implication here is that we then have to be careful how it is later
// accessed. Also, this makes the function not thread safe. But this trade off was made as
// this was not intended to be a multi-threaded program.
static char strBuffer[LE_CFG_STR_LEN_BYTES] = "";
// Build up the child array.
json_t* childArrayPtr = json_array();
do
{
// Simply grab the name and the type of the current node.
le_cfg_GetNodeName(iterRef, "", strBuffer, sizeof(strBuffer));
le_cfg_nodeType_t type = le_cfg_GetNodeType(iterRef, "");
switch (type)
{
// It's a stem object, so mark this item as being a stem and recurse into the stem's
// sub-items.
case LE_CFG_TYPE_STEM:
{
json_t* nodePtr = CreateJsonNode(strBuffer, NodeTypeStr(type));
le_cfg_GoToFirstChild(iterRef);
DumpTreeJSON(iterRef, nodePtr);
le_cfg_GoToParent(iterRef);
json_array_append(childArrayPtr, nodePtr);
}
break;
default:
{
json_t* nodePtr = CreateJsonNodeFromIterator(iterRef);
if (nodePtr != NULL)
{
json_array_append(childArrayPtr, nodePtr);
}
}
break;
}
}
while (le_cfg_GoToNextSibling(iterRef) == LE_OK);
// Set children into the JSON document.
json_object_set_new(jsonObject, JSON_FIELD_CHILDREN, childArrayPtr);
}
//--------------------------------------------------------------------------------------------------
LE_SHARED le_result_t appCfg_GetProcName
(
appCfg_Iter_t procIterRef, ///< [IN] Apps iterator
char* bufPtr, ///< [OUT] Buffer to store the app name.
size_t bufSize ///< [IN] Size of the buffer.
)
{
CheckFor(procIterRef, ITER_TYPE_PROC);
if (le_cfg_NodeExists(procIterRef->cfgIter, "") == false)
{
return LE_NOT_FOUND;
}
return le_cfg_GetNodeName(procIterRef->cfgIter, "", bufPtr, bufSize);
}
//--------------------------------------------------------------------------------------------------
static le_result_t GetAppUid
(
le_cfg_IteratorRef_t i, ///< [in] Configuration tree iterator.
uid_t* uidPtr ///< [out] Pointer to where the user ID will be put if successful.
)
//--------------------------------------------------------------------------------------------------
{
le_result_t result;
char appName[LIMIT_MAX_APP_NAME_BYTES];
result = le_cfg_GetNodeName(i, "", appName, sizeof(appName));
if (result != LE_OK)
{
LE_CRIT("Configuration node name too long under 'system/apps/'.");
return LE_OVERFLOW;
}
// If this is an "unsandboxed" app, use the root user ID.
if (le_cfg_GetBool(i, "sandboxed", true) == false)
{
char path[256];
le_cfg_GetPath(i, "", path, sizeof(path));
LE_DEBUG("'%s' = <root>", path);
*uidPtr = 0;
return LE_OK;
}
// Convert the app name into a user name by prefixing it with "app".
char userName[LIMIT_MAX_USER_NAME_BYTES] = "app";
result = le_utf8_Append(userName, appName, sizeof(userName), NULL);
if (result != LE_OK)
{
LE_CRIT("Failed to convert app name into user name.");
return LE_OVERFLOW;
}
// Convert the app user name into a user ID.
result = user_GetUid(userName, uidPtr);
if (result != LE_OK)
{
LE_CRIT("Failed to get user ID for user '%s'. (%s)", userName, LE_RESULT_TXT(result));
return LE_NOT_FOUND;
}
return LE_OK;
}
//--------------------------------------------------------------------------------------------------
static le_result_t GetEnvironmentVariables
(
proc_Ref_t procRef, ///< [IN] The process to get the environment variables for.
EnvVar_t envVars[], ///< [IN] The list of environment variables.
size_t maxNumEnvVars ///< [IN] The maximum number of items envVars can hold.
)
{
le_cfg_IteratorRef_t procCfg = le_cfg_CreateReadTxn(procRef->cfgPathRoot);
le_cfg_GoToNode(procCfg, CFG_NODE_ENV_VARS);
if (le_cfg_GoToFirstChild(procCfg) != LE_OK)
{
LE_WARN("No environment variables for process '%s'.", procRef->name);
le_cfg_CancelTxn(procCfg);
return LE_NOT_FOUND;
}
int i;
for (i = 0; i < maxNumEnvVars; i++)
{
if ( (le_cfg_GetNodeName(procCfg, "", envVars[i].name, LIMIT_MAX_ENV_VAR_NAME_BYTES) != LE_OK) ||
(le_cfg_GetString(procCfg, "", envVars[i].value, LIMIT_MAX_PATH_BYTES, "") != LE_OK) )
{
LE_ERROR("Error reading environment variables for process '%s'.", procRef->name);
le_cfg_CancelTxn(procCfg);
return LE_FAULT;
}
if (le_cfg_GoToNextSibling(procCfg) != LE_OK)
{
break;
}
else if (i >= maxNumEnvVars-1)
{
LE_ERROR("There were too many environment variables for process '%s'.", procRef->name);
le_cfg_CancelTxn(procCfg);
return LE_FAULT;
}
}
le_cfg_CancelTxn(procCfg);
return i + 1;
}
static void DumpTree(le_cfg_IteratorRef_t iterRef, size_t indent)
{
if (le_arg_NumArgs() == 1)
{
return;
}
static char strBuffer[STR_SIZE] = { 0 };
do
{
size_t i;
for (i = 0; i < indent; i++)
{
printf(" ");
}
le_cfg_GetNodeName(iterRef, "", strBuffer, STR_SIZE);
le_cfg_nodeType_t type = le_cfg_GetNodeType(iterRef, "");
switch (type)
{
case LE_CFG_TYPE_STEM:
printf("%s/\n", strBuffer);
le_cfg_GoToFirstChild(iterRef);
DumpTree(iterRef, indent + 2);
le_cfg_GoToParent(iterRef);
break;
case LE_CFG_TYPE_EMPTY:
printf("%s~~\n", strBuffer);
break;
default:
printf("%s<%s> == ", strBuffer, NodeTypeStr(iterRef));
le_cfg_GetString(iterRef, "", strBuffer, STR_SIZE, "");
printf("%s\n", strBuffer);
break;
}
}
while (le_cfg_GoToNextSibling(iterRef) == LE_OK);
}
//--------------------------------------------------------------------------------------------------
static void SendBindRequest
(
uid_t uid, ///< [in] Unix user ID of the client whose binding is being created.
le_cfg_IteratorRef_t i ///< [in] Configuration read iterator.
)
//--------------------------------------------------------------------------------------------------
{
le_result_t result;
le_msg_MessageRef_t msgRef = le_msg_CreateMsg(SessionRef);
le_sdtp_Msg_t* msgPtr = le_msg_GetPayloadPtr(msgRef);
msgPtr->msgType = LE_SDTP_MSGID_BIND;
msgPtr->client = uid;
// Fetch the client's service name.
result = le_cfg_GetNodeName(i,
"",
msgPtr->clientServiceName,
sizeof(msgPtr->clientServiceName));
if (result != LE_OK)
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "", path, sizeof(path));
LE_CRIT("Configured client service name too long (@ %s)", path);
return;
}
// Fetch the server's user ID.
result = GetServerUid(i, &msgPtr->server);
if (result != LE_OK)
{
return;
}
// Fetch the server's service name.
result = le_cfg_GetString(i,
"interface",
msgPtr->serverServiceName,
sizeof(msgPtr->serverServiceName),
"");
if (result != LE_OK)
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "interface", path, sizeof(path));
LE_CRIT("Server interface name too big (@ %s)", path);
return;
}
if (msgPtr->serverServiceName[0] == '\0')
{
char path[LIMIT_MAX_PATH_BYTES];
le_cfg_GetPath(i, "interface", path, sizeof(path));
LE_CRIT("Server interface name missing (@ %s)", path);
return;
}
msgRef = le_msg_RequestSyncResponse(msgRef);
if (msgRef == NULL)
{
ExitWithErrorMsg("Communication with Service Directory failed.");
}
le_msg_ReleaseMsg(msgRef);
}
// -------------------------------------------------------------------------------------------------
static int HandleGetJSON
(
const char* nodePathPtr, ///< Path to the node in the configTree.
const char* filePathPtr ///< Path to the file in the file system. If NULL STDOUT is used
///< instead of a file.
)
// -------------------------------------------------------------------------------------------------
{
json_t* nodePtr = NULL;
// Get the node path from our command line arguments.
if (strcmp("*", nodePathPtr) == 0)
{
// Dump all trees
// Create JSON root item
json_t* rootPtr = CreateJsonNode("root", "root");
json_t* treeListPtr = json_array();
// Loop through the trees in the system.
le_cfgAdmin_IteratorRef_t iteratorRef = le_cfgAdmin_CreateTreeIterator();
while (le_cfgAdmin_NextTree(iteratorRef) == LE_OK)
{
// Allocate space for the tree name, plus space for a trailing :/ used when we create a
// transaction for that tree.
char treeName[MAX_TREE_NAME_BYTES + 2] = "";
if (le_cfgAdmin_GetTreeName(iteratorRef, treeName, MAX_TREE_NAME_BYTES) != LE_OK)
{
continue;
}
// JSON node for the tree.
json_t* treeNodePtr = CreateJsonNode(treeName, "tree");
strcat(treeName, ":/");
// Start a read transaction at the specified node path. Then dump the value, (if any.)
le_cfg_IteratorRef_t iterRef = le_cfg_CreateReadTxn(treeName);
le_cfg_GoToFirstChild(iterRef);
// Dump tree to JSON
DumpTreeJSON(iterRef, treeNodePtr);
le_cfg_CancelTxn(iterRef);
json_array_append(treeListPtr, treeNodePtr);
}
le_cfgAdmin_ReleaseTreeIterator(iteratorRef);
// Finalize root object...
json_object_set_new(rootPtr, "trees", treeListPtr);
nodePtr = rootPtr;
}
else
{
// Start a read transaction at the specified node path. Then dump the value, (if any.)
le_cfg_IteratorRef_t iterRef = le_cfg_CreateReadTxn(nodePathPtr);
le_cfg_nodeType_t type = le_cfg_GetNodeType(iterRef, "");
switch (type)
{
case LE_CFG_TYPE_STEM:
{
char strBuffer[LE_CFG_STR_LEN_BYTES] = "";
char nodeType[LE_CFG_STR_LEN_BYTES] = "";
le_cfg_GetNodeName(iterRef, "", strBuffer, sizeof(strBuffer));
// If no name, we are dumping a complete tree.
if (strlen(strBuffer) == 0)
{
strcpy(nodeType, "tree");
}
else
{
strcpy(nodeType, NodeTypeStr(type));
}
nodePtr = CreateJsonNode(strBuffer, nodeType);
le_cfg_GoToFirstChild(iterRef);
DumpTreeJSON(iterRef, nodePtr);
le_cfg_GoToParent(iterRef);
}
break;
default:
nodePtr = CreateJsonNodeFromIterator(iterRef);
break;
}
le_cfg_CancelTxn(iterRef);
}
if (nodePtr == NULL)
{
// Empty node
nodePtr = json_object();
}
// Dump Json content
// stdout mode?
int result = EXIT_SUCCESS;
if (filePathPtr == NULL)
{
printf("%s\n", json_dumps(nodePtr, JSON_COMPACT));
}
else if (json_dump_file(nodePtr, filePathPtr, JSON_COMPACT) != 0)
{
result = EXIT_FAILURE;
}
json_decref(nodePtr);
return result;
}
// -------------------------------------------------------------------------------------------------
static void DumpTree
(
le_cfg_IteratorRef_t iterRef, ///< Write out the tree pointed to by this iterator.
size_t indent ///< The amount of indentation to use for this item.
)
// -------------------------------------------------------------------------------------------------
{
// Note that because this is a recursive function, the buffer here is static in order to save on
// stack space. The implication here is that we then have to be careful how it is later
// accessed. Also, this makes the function not thread safe. But this trade off was made as
// this was not intended to be a multi-threaded program.
static char strBuffer[LE_CFG_STR_LEN_BYTES] = "";
do
{
// Quick and dirty way to indent the tree item.
size_t i;
for (i = 0; i < indent; i++)
{
printf(" ");
}
// Simply grab the name and the type of the current node.
le_cfg_GetNodeName(iterRef, "", strBuffer, LE_CFG_STR_LEN_BYTES);
le_cfg_nodeType_t type = le_cfg_GetNodeType(iterRef, "");
switch (type)
{
// It's a stem object, so mark this item as being a stem and recurse into the stem's
// sub-items.
case LE_CFG_TYPE_STEM:
printf("%s/\n", strBuffer);
le_cfg_GoToFirstChild(iterRef);
DumpTree(iterRef, indent + 2);
le_cfg_GoToParent(iterRef);
// If we got back up to where we started then don't iterate the "root" node's
// siblings.
if (indent == 0)
{
return;
}
break;
// The node is empty, so simply mark it as such.
case LE_CFG_TYPE_EMPTY:
printf("%s<empty>\n", strBuffer);
break;
case LE_CFG_TYPE_BOOL:
{
char* value = NULL;
if (le_cfg_GetBool(iterRef, "", false))
{
value = "true";
}
else
{
value = "false";
}
printf("%s<bool> == %s\n", strBuffer, value);
}
break;
// The node has a different type. So write out the name and the type. Then print the
// value.
default:
printf("%s<%s> == ", strBuffer, NodeTypeStr(le_cfg_GetNodeType(iterRef, "")));
le_cfg_GetString(iterRef, "", strBuffer, LE_CFG_STR_LEN_BYTES, "");
printf("%s\n", strBuffer);
break;
}
}
while (le_cfg_GoToNextSibling(iterRef) == LE_OK);
}
