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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2006, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief The Asterisk Management Interface - AMI
*
* \author Mark Spencer <markster@digium.com>
*
* \extref OpenSSL http://www.openssl.org - for AMI/SSL
*
* At the moment this file contains a number of functions, namely:
*
* - data structures storing AMI state
* - AMI-related API functions, used by internal asterisk components
* - handlers for AMI-related CLI functions
* - handlers for AMI functions (available through the AMI socket)
* - the code for the main AMI listener thread and individual session threads
* - the http handlers invoked for AMI-over-HTTP by the threads in main/http.c
*
* \ref amiconf
*/
/*! \addtogroup Group_AMI AMI functions
*/
/*! @{
Doxygen group */
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/_private.h"
#include "asterisk/paths.h" /* use various ast_config_AST_* */
#include <ctype.h>
#include <sys/time.h>
#include <signal.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <regex.h>
#include "asterisk/channel.h"
#include "asterisk/file.h"
#include "asterisk/manager.h"
#include "asterisk/module.h"
#include "asterisk/config.h"
#include "asterisk/callerid.h"
#include "asterisk/lock.h"
#include "asterisk/cli.h"
#include "asterisk/app.h"
#include "asterisk/pbx.h"
#include "asterisk/md5.h"
#include "asterisk/acl.h"
#include "asterisk/utils.h"
#include "asterisk/tcptls.h"
#include "asterisk/http.h"
#include "asterisk/ast_version.h"
#include "asterisk/threadstorage.h"
#include "asterisk/linkedlists.h"
#include "asterisk/term.h"
#include "asterisk/astobj2.h"
#include "asterisk/features.h"
#include "asterisk/security_events.h"
#include "asterisk/aoc.h"
/*** DOCUMENTATION
<manager name="Ping" language="en_US">
<synopsis>
Keepalive command.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
</syntax>
<description>
<para>A 'Ping' action will ellicit a 'Pong' response. Used to keep the
manager connection open.</para>
</description>
</manager>
<manager name="Events" language="en_US">
<synopsis>
Control Event Flow.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="EventMask" required="true">
<enumlist>
<enum name="on">
<para>If all events should be sent.</para>
</enum>
<enum name="off">
<para>If no events should be sent.</para>
</enum>
<enum name="system,call,log,...">
<para>To select which flags events should have to be sent.</para>
</enum>
</enumlist>
</parameter>
</syntax>
<description>
<para>Enable/Disable sending of events to this manager client.</para>
</description>
</manager>
<manager name="Logoff" language="en_US">
<synopsis>
Logoff Manager.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
</syntax>
<description>
<para>Logoff the current manager session.</para>
</description>
</manager>
<manager name="Login" language="en_US">
<synopsis>
Login Manager.
</synopsis>
<syntax>
<parameter name="ActionID">
<para>ActionID for this transaction. Will be returned.</para>
</parameter>
</syntax>
<description>
<para>Login Manager.</para>
</description>
</manager>
<manager name="Challenge" language="en_US">
<synopsis>
Generate Challenge for MD5 Auth.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
</syntax>
<description>
<para>Generate a challenge for MD5 authentication.</para>
</description>
</manager>
<manager name="Hangup" language="en_US">
<synopsis>
Hangup channel.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>The channel name to be hangup.</para>
</parameter>
<parameter name="Cause">
<para>Numeric hangup cause.</para>
</parameter>
</syntax>
<description>
<para>Hangup a channel.</para>
</description>
</manager>
<manager name="Status" language="en_US">
<synopsis>
List channel status.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>The name of the channel to query for status.</para>
</parameter>
<parameter name="Variables">
<para>Comma <literal>,</literal> separated list of variable to include.</para>
</parameter>
</syntax>
<description>
<para>Will return the status information of each channel along with the
value for the specified channel variables.</para>
</description>
</manager>
<manager name="Setvar" language="en_US">
<synopsis>
Set a channel variable.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel">
<para>Channel to set variable for.</para>
</parameter>
<parameter name="Variable" required="true">
<para>Variable name.</para>
</parameter>
<parameter name="Value" required="true">
<para>Variable value.</para>
</parameter>
</syntax>
<description>
<para>Set a global or local channel variable.</para>
</description>
</manager>
<manager name="Getvar" language="en_US">
<synopsis>
Gets a channel variable.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel">
<para>Channel to read variable from.</para>
</parameter>
<parameter name="Variable" required="true">
<para>Variable name.</para>
</parameter>
</syntax>
<description>
<para>Get the value of a global or local channel variable.</para>
</description>
</manager>
<manager name="GetConfig" language="en_US">
<synopsis>
Retrieve configuration.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Filename" required="true">
<para>Configuration filename (e.g. <filename>foo.conf</filename>).</para>
</parameter>
<parameter name="Category">
<para>Category in configuration file.</para>
</parameter>
</syntax>
<description>
<para>This action will dump the contents of a configuration
file by category and contents or optionally by specified category only.</para>
</description>
</manager>
<manager name="GetConfigJSON" language="en_US">
<synopsis>
Retrieve configuration (JSON format).
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Filename" required="true">
<para>Configuration filename (e.g. <filename>foo.conf</filename>).</para>
</parameter>
</syntax>
<description>
<para>This action will dump the contents of a configuration file by category
and contents in JSON format. This only makes sense to be used using rawman over
the HTTP interface.</para>
</description>
</manager>
<manager name="UpdateConfig" language="en_US">
<synopsis>
Update basic configuration.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="SrcFilename" required="true">
<para>Configuration filename to read (e.g. <filename>foo.conf</filename>).</para>
</parameter>
<parameter name="DstFilename" required="true">
<para>Configuration filename to write (e.g. <filename>foo.conf</filename>)</para>
</parameter>
<parameter name="Reload">
<para>Whether or not a reload should take place (or name of specific module).</para>
</parameter>
<parameter name="Action-XXXXXX">
<para>Action to take.</para>
<para>X's represent 6 digit number beginning with 000000.</para>
<enumlist>
<enum name="NewCat" />
<enum name="RenameCat" />
<enum name="DelCat" />
<enum name="EmptyCat" />
<enum name="Update" />
<enum name="Delete" />
<enum name="Append" />
<enum name="Insert" />
</enumlist>
</parameter>
<parameter name="Cat-XXXXXX">
<para>Category to operate on.</para>
<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
</parameter>
<parameter name="Var-XXXXXX">
<para>Variable to work on.</para>
<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
</parameter>
<parameter name="Value-XXXXXX">
<para>Value to work on.</para>
<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
</parameter>
<parameter name="Match-XXXXXX">
<para>Extra match required to match line.</para>
<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
</parameter>
<parameter name="Line-XXXXXX">
<para>Line in category to operate on (used with delete and insert actions).</para>
<xi:include xpointer="xpointer(/docs/manager[@name='UpdateConfig']/syntax/parameter[@name='Action-XXXXXX']/para[2])" />
</parameter>
</syntax>
<description>
<para>This action will modify, create, or delete configuration elements
in Asterisk configuration files.</para>
</description>
</manager>
<manager name="CreateConfig" language="en_US">
<synopsis>
Creates an empty file in the configuration directory.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Filename" required="true">
<para>The configuration filename to create (e.g. <filename>foo.conf</filename>).</para>
</parameter>
</syntax>
<description>
<para>This action will create an empty file in the configuration
directory. This action is intended to be used before an UpdateConfig
action.</para>
</description>
</manager>
<manager name="ListCategories" language="en_US">
<synopsis>
List categories in configuration file.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Filename" required="true">
<para>Configuration filename (e.g. <filename>foo.conf</filename>).</para>
</parameter>
</syntax>
<description>
<para>This action will dump the categories in a given file.</para>
</description>
</manager>
<manager name="Redirect" language="en_US">
<synopsis>
Redirect (transfer) a call.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Channel to redirect.</para>
</parameter>
<parameter name="ExtraChannel">
<para>Second call leg to transfer (optional).</para>
</parameter>
<parameter name="Exten" required="true">
<para>Extension to transfer to.</para>
</parameter>
<parameter name="ExtraExten">
<para>Extension to transfer extrachannel to (optional).</para>
</parameter>
<parameter name="Context" required="true">
<para>Context to transfer to.</para>
</parameter>
<parameter name="ExtraContext">
<para>Context to transfer extrachannel to (optional).</para>
</parameter>
<parameter name="Priority" required="true">
<para>Priority to transfer to.</para>
</parameter>
<parameter name="ExtraPriority">
<para>Priority to transfer extrachannel to (optional).</para>
</parameter>
</syntax>
<description>
<para>Redirect (transfer) a call.</para>
</description>
</manager>
<manager name="Atxfer" language="en_US">
<synopsis>
Attended transfer.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Transferer's channel.</para>
</parameter>
<parameter name="Exten" required="true">
<para>Extension to transfer to.</para>
</parameter>
<parameter name="Context" required="true">
<para>Context to transfer to.</para>
</parameter>
<parameter name="Priority" required="true">
<para>Priority to transfer to.</para>
</parameter>
</syntax>
<description>
<para>Attended transfer.</para>
</description>
</manager>
<manager name="Originate" language="en_US">
<synopsis>
Originate a call.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Channel name to call.</para>
</parameter>
<parameter name="Exten">
<para>Extension to use (requires <literal>Context</literal> and
<literal>Priority</literal>)</para>
</parameter>
<parameter name="Context">
<para>Context to use (requires <literal>Exten</literal> and
<literal>Priority</literal>)</para>
</parameter>
<parameter name="Priority">
<para>Priority to use (requires <literal>Exten</literal> and
<literal>Context</literal>)</para>
</parameter>
<parameter name="Application">
<para>Application to execute.</para>
</parameter>
<parameter name="Data">
<para>Data to use (requires <literal>Application</literal>).</para>
</parameter>
<parameter name="Timeout" default="30000">
<para>How long to wait for call to be answered (in ms.).</para>
</parameter>
<parameter name="CallerID">
<para>Caller ID to be set on the outgoing channel.</para>
</parameter>
<parameter name="Variable">
<para>Channel variable to set, multiple Variable: headers are allowed.</para>
</parameter>
<parameter name="Account">
<para>Account code.</para>
</parameter>
<parameter name="Async">
<para>Set to <literal>true</literal> for fast origination.</para>
</parameter>
<parameter name="Codecs">
<para>Comma-separated list of codecs to use for this call.</para>
</parameter>
</syntax>
<description>
<para>Generates an outgoing call to a
<replaceable>Extension</replaceable>/<replaceable>Context</replaceable>/<replaceable>Priority</replaceable>
or <replaceable>Application</replaceable>/<replaceable>Data</replaceable></para>
</description>
</manager>
<manager name="Command" language="en_US">
<synopsis>
Execute Asterisk CLI Command.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Command" required="true">
<para>Asterisk CLI command to run.</para>
</parameter>
</syntax>
<description>
<para>Run a CLI command.</para>
</description>
</manager>
<manager name="ExtensionState" language="en_US">
<synopsis>
Check Extension Status.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Exten" required="true">
<para>Extension to check state on.</para>
</parameter>
<parameter name="Context" required="true">
<para>Context for extension.</para>
</parameter>
</syntax>
<description>
<para>Report the extension state for given extension. If the extension has a hint,
will use devicestate to check the status of the device connected to the extension.</para>
<para>Will return an <literal>Extension Status</literal> message. The response will include
the hint for the extension and the status.</para>
</description>
</manager>
<manager name="AbsoluteTimeout" language="en_US">
<synopsis>
Set absolute timeout.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Channel name to hangup.</para>
</parameter>
<parameter name="Timeout" required="true">
<para>Maximum duration of the call (sec).</para>
</parameter>
</syntax>
<description>
<para>Hangup a channel after a certain time. Acknowledges set time with
<literal>Timeout Set</literal> message.</para>
</description>
</manager>
<manager name="MailboxStatus" language="en_US">
<synopsis>
Check mailbox.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Mailbox" required="true">
<para>Full mailbox ID <replaceable>mailbox</replaceable>@<replaceable>vm-context</replaceable>.</para>
</parameter>
</syntax>
<description>
<para>Checks a voicemail account for status.</para>
<para>Returns number of messages.</para>
<para>Message: Mailbox Status.</para>
<para>Mailbox: <replaceable>mailboxid</replaceable>.</para>
<para>Waiting: <replaceable>count</replaceable>.</para>
</description>
</manager>
<manager name="MailboxCount" language="en_US">
<synopsis>
Check Mailbox Message Count.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Mailbox" required="true">
<para>Full mailbox ID <replaceable>mailbox</replaceable>@<replaceable>vm-context</replaceable>.</para>
</parameter>
</syntax>
<description>
<para>Checks a voicemail account for new messages.</para>
<para>Returns number of urgent, new and old messages.</para>
<para>Message: Mailbox Message Count</para>
<para>Mailbox: <replaceable>mailboxid</replaceable></para>
<para>UrgentMessages: <replaceable>count</replaceable></para>
<para>NewMessages: <replaceable>count</replaceable></para>
<para>OldMessages: <replaceable>count</replaceable></para>
</description>
</manager>
<manager name="ListCommands" language="en_US">
<synopsis>
List available manager commands.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
</syntax>
<description>
<para>Returns the action name and synopsis for every action that
is available to the user.</para>
</description>
</manager>
<manager name="SendText" language="en_US">
<synopsis>
Send text message to channel.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Channel to send message to.</para>
</parameter>
<parameter name="Message" required="true">
<para>Message to send.</para>
</parameter>
</syntax>
<description>
<para>Sends A Text Message to a channel while in a call.</para>
</description>
</manager>
<manager name="UserEvent" language="en_US">
<synopsis>
Send an arbitrary event.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="UserEvent" required="true">
<para>Event string to send.</para>
</parameter>
<parameter name="Header1">
<para>Content1.</para>
</parameter>
<parameter name="HeaderN">
<para>ContentN.</para>
</parameter>
</syntax>
<description>
<para>Send an event to manager sessions.</para>
</description>
</manager>
<manager name="WaitEvent" language="en_US">
<synopsis>
Wait for an event to occur.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Timeout" required="true">
<para>Maximum time (in seconds) to wait for events, <literal>-1</literal> means forever.</para>
</parameter>
</syntax>
<description>
<para>This action will ellicit a <literal>Success</literal> response. Whenever
a manager event is queued. Once WaitEvent has been called on an HTTP manager
session, events will be generated and queued.</para>
</description>
</manager>
<manager name="CoreSettings" language="en_US">
<synopsis>
Show PBX core settings (version etc).
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
</syntax>
<description>
<para>Query for Core PBX settings.</para>
</description>
</manager>
<manager name="CoreStatus" language="en_US">
<synopsis>
Show PBX core status variables.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
</syntax>
<description>
<para>Query for Core PBX status.</para>
</description>
</manager>
<manager name="Reload" language="en_US">
<synopsis>
Send a reload event.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Module">
<para>Name of the module to reload.</para>
</parameter>
</syntax>
<description>
<para>Send a reload event.</para>
</description>
</manager>
<manager name="CoreShowChannels" language="en_US">
<synopsis>
List currently active channels.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
</syntax>
<description>
<para>List currently defined channels and some information about them.</para>
</description>
</manager>
<manager name="ModuleLoad" language="en_US">
<synopsis>
Module management.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Module">
<para>Asterisk module name (including .so extension) or subsystem identifier:</para>
<enumlist>
<enum name="cdr" />
<enum name="enum" />
<enum name="dnsmgr" />
<enum name="extconfig" />
<enum name="manager" />
<enum name="rtp" />
<enum name="http" />
</enumlist>
</parameter>
<parameter name="LoadType" required="true">
<para>The operation to be done on module.</para>
<enumlist>
<enum name="load" />
<enum name="unload" />
<enum name="reload" />
</enumlist>
<para>If no module is specified for a <literal>reload</literal> loadtype,
all modules are reloaded.</para>
</parameter>
</syntax>
<description>
<para>Loads, unloads or reloads an Asterisk module in a running system.</para>
</description>
</manager>
<manager name="ModuleCheck" language="en_US">
<synopsis>
Check if module is loaded.
</synopsis>
<syntax>
<parameter name="Module" required="true">
<para>Asterisk module name (not including extension).</para>
</parameter>
</syntax>
<description>
<para>Checks if Asterisk module is loaded. Will return Success/Failure.
For success returns, the module revision number is included.</para>
</description>
</manager>
<manager name="AOCMessage" language="en_US">
<synopsis>
Generate an Advice of Charge message on a channel.
</synopsis>
<syntax>
<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
<parameter name="Channel" required="true">
<para>Channel name to generate the AOC message on.</para>
</parameter>
<parameter name="ChannelPrefix">
<para>Partial channel prefix. By using this option one can match the beginning part
of a channel name without having to put the entire name in. For example
if a channel name is SIP/snom-00000001 and this value is set to SIP/snom, then
that channel matches and the message will be sent. Note however that only
the first matched channel has the message sent on it. </para>
</parameter>
<parameter name="MsgType" required="true">
<para>Defines what type of AOC message to create, AOC-D or AOC-E</para>
<enumlist>
<enum name="D" />
<enum name="E" />
</enumlist>
</parameter>
<parameter name="ChargeType" required="true">
<para>Defines what kind of charge this message represents.</para>
<enumlist>
<enum name="NA" />
<enum name="FREE" />
<enum name="Currency" />
<enum name="Unit" />
</enumlist>
</parameter>
<parameter name="UnitAmount(0)">
<para>This represents the amount of units charged. The ETSI AOC standard specifies that
this value along with the optional UnitType value are entries in a list. To accommodate this
these values take an index value starting at 0 which can be used to generate this list of
unit entries. For Example, If two unit entires were required this could be achieved by setting the
paramter UnitAmount(0)=1234 and UnitAmount(1)=5678. Note that UnitAmount at index 0 is
required when ChargeType=Unit, all other entries in the list are optional.
</para>
</parameter>
<parameter name="UnitType(0)">
<para>Defines the type of unit. ETSI AOC standard specifies this as an integer
value between 1 and 16, but this value is left open to accept any positive
integer. Like the UnitAmount parameter, this value represents a list entry
and has an index parameter that starts at 0.
</para>
</parameter>
<parameter name="CurrencyName">
<para>Specifies the currency's name. Note that this value is truncated after 10 characters.</para>
</parameter>
<parameter name="CurrencyAmount">
<para>Specifies the charge unit amount as a positive integer. This value is required
when ChargeType==Currency.</para>
</parameter>
<parameter name="CurrencyMultiplier">
<para>Specifies the currency multiplier. This value is required when ChargeType==Currency.</para>
<enumlist>
<enum name="OneThousandth" />
<enum name="OneHundredth" />
<enum name="OneTenth" />
<enum name="One" />
<enum name="Ten" />
<enum name="Hundred" />
<enum name="Thousand" />
</enumlist>
</parameter>
<parameter name="TotalType" default="Total">
<para>Defines what kind of AOC-D total is represented.</para>
<enumlist>
<enum name="Total" />
<enum name="SubTotal" />
</enumlist>
</parameter>
<parameter name="AOCBillingId">
<para>Represents a billing ID associated with an AOC-D or AOC-E message. Note
that only the first 3 items of the enum are valid AOC-D billing IDs</para>
<enumlist>
<enum name="Normal" />
<enum name="ReverseCharge" />
<enum name="CreditCard" />
<enum name="CallFwdUnconditional" />
<enum name="CallFwdBusy" />
<enum name="CallFwdNoReply" />
<enum name="CallDeflection" />
<enum name="CallTransfer" />
</enumlist>
</parameter>
<parameter name="ChargingAssociationId">
<para>Charging association identifier. This is optional for AOC-E and can be
set to any value between -32768 and 32767</para>
</parameter>
<parameter name="ChargingAssociationNumber">
<para>Represents the charging association party number. This value is optional
for AOC-E.</para>
</parameter>
<parameter name="ChargingAssociationPlan">
<para>Integer representing the charging plan associated with the ChargingAssociationNumber.
The value is bits 7 through 1 of the Q.931 octet containing the type-of-number and
numbering-plan-identification fields.</para>
</parameter>
</syntax>
<description>
<para>Generates an AOC-D or AOC-E message on a channel.</para>
</description>
</manager>
***/
enum error_type {
UNKNOWN_ACTION = 1,
UNKNOWN_CATEGORY,
UNSPECIFIED_CATEGORY,
UNSPECIFIED_ARGUMENT,
FAILURE_ALLOCATION,
FAILURE_NEWCAT,
FAILURE_DELCAT,
FAILURE_EMPTYCAT,
FAILURE_UPDATE,
FAILURE_DELETE,
FAILURE_APPEND
};
/*!
* Linked list of events.
* Global events are appended to the list by append_event().
* The usecount is the number of stored pointers to the element,
* excluding the list pointers. So an element that is only in
* the list has a usecount of 0, not 1.
*
* Clients have a pointer to the last event processed, and for each
* of these clients we track the usecount of the elements.
* If we have a pointer to an entry in the list, it is safe to navigate
* it forward because elements will not be deleted, but only appended.
* The worst that can happen is seeing the pointer still NULL.
*
* When the usecount of an element drops to 0, and the element is the
* first in the list, we can remove it. Removal is done within the
* main thread, which is woken up for the purpose.
*
* For simplicity of implementation, we make sure the list is never empty.
*/
struct eventqent {
int usecount; /*!< # of clients who still need the event */
int category;
unsigned int seq; /*!< sequence number */
struct timeval tv; /*!< When event was allocated */
AST_RWLIST_ENTRY(eventqent) eq_next;
char eventdata[1]; /*!< really variable size, allocated by append_event() */
};
static AST_RWLIST_HEAD_STATIC(all_events, eventqent);
static int displayconnects = 1;
static int allowmultiplelogin = 1;
static int timestampevents;
static int httptimeout = 60;
static int broken_events_action = 0;
static int manager_enabled = 0;
static int webmanager_enabled = 0;
static int authtimeout;
static int authlimit;
static char *manager_channelvars;
#define DEFAULT_REALM "asterisk"
static char global_realm[MAXHOSTNAMELEN]; /*!< Default realm */
static int block_sockets;
static int unauth_sessions = 0;
static int manager_debug; /*!< enable some debugging code in the manager */
/*! \brief
* Descriptor for a manager session, either on the AMI socket or over HTTP.
*
* \note
* AMI session have managerid == 0; the entry is created upon a connect,
* and destroyed with the socket.
* HTTP sessions have managerid != 0, the value is used as a search key
* to lookup sessions (using the mansession_id cookie, or nonce key from
* Digest Authentication http header).
*/
#define MAX_BLACKLIST_CMD_LEN 2
static const struct {
const char *words[AST_MAX_CMD_LEN];
} command_blacklist[] = {
{{ "module", "load", NULL }},
{{ "module", "unload", NULL }},
{{ "restart", "gracefully", NULL }},
};
/* In order to understand what the heck is going on with the
* mansession_session and mansession structs, we need to have a bit of a history
* lesson.
*
* In the beginning, there was the mansession. The mansession contained data that was
* intrinsic to a manager session, such as the time that it started, the name of the logged-in
* user, etc. In addition to these parameters were the f and fd parameters. For typical manager
* sessions, these were used to represent the TCP socket over which the AMI session was taking
* place. It makes perfect sense for these fields to be a part of the session-specific data since
* the session actually defines this information.
*
* Then came the HTTP AMI sessions. With these, the f and fd fields need to be opened and closed
* for every single action that occurs. Thus the f and fd fields aren't really specific to the session
* but rather to the action that is being executed. Because a single session may execute many commands
* at once, some sort of safety needed to be added in order to be sure that we did not end up with fd
* leaks from one action overwriting the f and fd fields used by a previous action before the previous action
* has had a chance to properly close its handles.
*
* The initial idea to solve this was to use thread synchronization, but this prevented multiple actions
* from being run at the same time in a single session. Some manager actions may block for a long time, thus
* creating a large queue of actions to execute. In addition, this fix did not address the basic architectural
* issue that for HTTP manager sessions, the f and fd variables are not really a part of the session, but are
* part of the action instead.
*
* The new idea was to create a structure on the stack for each HTTP Manager action. This structure would
* contain the action-specific information, such as which file to write to. In order to maintain expectations
* of action handlers and not have to change the public API of the manager code, we would need to name this
* new stacked structure 'mansession' and contain within it the old mansession struct that we used to use.
* We renamed the old mansession struct 'mansession_session' to hopefully convey that what is in this structure
* is session-specific data. The structure that it is wrapped in, called a 'mansession' really contains action-specific
* data.
*/
struct mansession_session {
/*! \todo XXX need to document which fields it is protecting */
struct sockaddr_in sin; /*!< address we are connecting from */
FILE *f; /*!< fdopen() on the underlying fd */
int fd; /*!< descriptor used for output. Either the socket (AMI) or a temporary file (HTTP) */
int inuse; /*!< number of HTTP sessions using this entry */
int needdestroy; /*!< Whether an HTTP session should be destroyed */
pthread_t waiting_thread; /*!< Sleeping thread using this descriptor */
uint32_t managerid; /*!< Unique manager identifier, 0 for AMI sessions */
time_t sessionstart; /*!< Session start time */
struct timeval sessionstart_tv; /*!< Session start time */
time_t sessiontimeout; /*!< Session timeout if HTTP */
char username[80]; /*!< Logged in username */
char challenge[10]; /*!< Authentication challenge */
int authenticated; /*!< Authentication status */
int readperm; /*!< Authorization for reading */
int writeperm; /*!< Authorization for writing */
char inbuf[1025]; /*!< Buffer - we use the extra byte to add a '\0' and simplify parsing */
int inlen; /*!< number of buffered bytes */
struct ao2_container *whitefilters; /*!< Manager event filters - white list */
struct ao2_container *blackfilters; /*!< Manager event filters - black list */
int send_events; /*!< XXX what ? */
struct eventqent *last_ev; /*!< last event processed. */
int writetimeout; /*!< Timeout for ast_carefulwrite() */
time_t authstart;
int pending_event; /*!< Pending events indicator in case when waiting_thread is NULL */
time_t noncetime; /*!< Timer for nonce value expiration */
unsigned long oldnonce; /*!< Stale nonce value */
unsigned long nc; /*!< incremental nonce counter */
AST_LIST_HEAD_NOLOCK(mansession_datastores, ast_datastore) datastores; /*!< Data stores on the session */
AST_LIST_ENTRY(mansession_session) list;
};
/*! \brief In case you didn't read that giant block of text above the mansession_session struct, the
* \ref struct mansession is named this solely to keep the API the same in Asterisk. This structure really
* represents data that is different from Manager action to Manager action. The mansession_session pointer
* contained within points to session-specific data.
*/
struct mansession {
struct mansession_session *session;
struct ast_tcptls_session_instance *tcptls_session;
FILE *f;
int fd;
int write_error:1;
struct manager_custom_hook *hook;
ast_mutex_t lock;
};
static struct ao2_container *sessions = NULL;
struct manager_channel_variable {
AST_LIST_ENTRY(manager_channel_variable) entry;
unsigned int isfunc:1;
char name[0]; /* allocate off the end the real size. */
};
static AST_RWLIST_HEAD_STATIC(channelvars, manager_channel_variable);
/*! \brief user descriptor, as read from the config file.
*
* \note It is still missing some fields -- e.g. we can have multiple permit and deny
* lines which are not supported here, and readperm/writeperm/writetimeout
* are not stored.
*/
struct ast_manager_user {
char username[80];
char *secret; /*!< Secret for logging in */
struct ast_ha *ha; /*!< ACL setting */
int readperm; /*!< Authorization for reading */
int writeperm; /*!< Authorization for writing */
int writetimeout; /*!< Per user Timeout for ast_carefulwrite() */
int displayconnects; /*!< XXX unused */
int keep; /*!< mark entries created on a reload */
struct ao2_container *whitefilters; /*!< Manager event filters - white list */
struct ao2_container *blackfilters; /*!< Manager event filters - black list */
char *a1_hash; /*!< precalculated A1 for Digest auth */
AST_RWLIST_ENTRY(ast_manager_user) list;
};
/*! \brief list of users found in the config file */
static AST_RWLIST_HEAD_STATIC(users, ast_manager_user);
/*! \brief list of actions registered */
static AST_RWLIST_HEAD_STATIC(actions, manager_action);
/*! \brief list of hooks registered */
static AST_RWLIST_HEAD_STATIC(manager_hooks, manager_custom_hook);
static void free_channelvars(void);
/*! \brief Add a custom hook to be called when an event is fired */
void ast_manager_register_hook(struct manager_custom_hook *hook)
{
AST_RWLIST_WRLOCK(&manager_hooks);
AST_RWLIST_INSERT_TAIL(&manager_hooks, hook, list);
AST_RWLIST_UNLOCK(&manager_hooks);
}
/*! \brief Delete a custom hook to be called when an event is fired */
void ast_manager_unregister_hook(struct manager_custom_hook *hook)
{
AST_RWLIST_WRLOCK(&manager_hooks);
AST_RWLIST_REMOVE(&manager_hooks, hook, list);
AST_RWLIST_UNLOCK(&manager_hooks);
}
int check_manager_enabled()
{
return manager_enabled;
}
int check_webmanager_enabled()
{
return (webmanager_enabled && manager_enabled);
}
/*!
* Grab a reference to the last event, update usecount as needed.
* Can handle a NULL pointer.
*/
static struct eventqent *grab_last(void)
{
struct eventqent *ret;
AST_RWLIST_WRLOCK(&all_events);
ret = AST_RWLIST_LAST(&all_events);
/* the list is never empty now, but may become so when
* we optimize it in the future, so be prepared.
*/
if (ret) {
ast_atomic_fetchadd_int(&ret->usecount, 1);
}
AST_RWLIST_UNLOCK(&all_events);
return ret;
}
/*!
* Purge unused events. Remove elements from the head
* as long as their usecount is 0 and there is a next element.
*/
static void purge_events(void)
{
struct eventqent *ev;
struct timeval now = ast_tvnow();
AST_RWLIST_WRLOCK(&all_events);
while ( (ev = AST_RWLIST_FIRST(&all_events)) &&
ev->usecount == 0 && AST_RWLIST_NEXT(ev, eq_next)) {
AST_RWLIST_REMOVE_HEAD(&all_events, eq_next);
ast_free(ev);
}
AST_RWLIST_TRAVERSE_SAFE_BEGIN(&all_events, ev, eq_next) {
/* Never release the last event */
if (!AST_RWLIST_NEXT(ev, eq_next)) {
break;
}
/* 2.5 times whatever the HTTP timeout is (maximum 2.5 hours) is the maximum time that we will definitely cache an event */
if (ev->usecount == 0 && ast_tvdiff_sec(now, ev->tv) > (httptimeout > 3600 ? 3600 : httptimeout) * 2.5) {
AST_RWLIST_REMOVE_CURRENT(eq_next);
ast_free(ev);
}
}
AST_RWLIST_TRAVERSE_SAFE_END;
AST_RWLIST_UNLOCK(&all_events);
}
/*!
* helper functions to convert back and forth between
* string and numeric representation of set of flags
*/
static const struct permalias {
int num;
const char *label;
} perms[] = {
{ EVENT_FLAG_SYSTEM, "system" },
{ EVENT_FLAG_CALL, "call" },
{ EVENT_FLAG_LOG, "log" },
{ EVENT_FLAG_VERBOSE, "verbose" },
{ EVENT_FLAG_COMMAND, "command" },
{ EVENT_FLAG_AGENT, "agent" },
{ EVENT_FLAG_USER, "user" },
{ EVENT_FLAG_CONFIG, "config" },
{ EVENT_FLAG_DTMF, "dtmf" },
{ EVENT_FLAG_REPORTING, "reporting" },
{ EVENT_FLAG_CDR, "cdr" },
{ EVENT_FLAG_DIALPLAN, "dialplan" },
{ EVENT_FLAG_ORIGINATE, "originate" },
{ EVENT_FLAG_AGI, "agi" },
{ EVENT_FLAG_CC, "cc" },
{ EVENT_FLAG_AOC, "aoc" },
{ INT_MAX, "all" },
{ 0, "none" },
};
/*! \brief Convert authority code to a list of options */
static const char *authority_to_str(int authority, struct ast_str **res)
{
int i;
char *sep = "";
ast_str_reset(*res);
for (i = 0; i < ARRAY_LEN(perms) - 1; i++) {
if (authority & perms[i].num) {
ast_str_append(res, 0, "%s%s", sep, perms[i].label);
sep = ",";
}
}
if (ast_str_strlen(*res) == 0) /* replace empty string with something sensible */
ast_str_append(res, 0, "<none>");
return ast_str_buffer(*res);
}
/*! Tells you if smallstr exists inside bigstr
which is delim by delim and uses no buf or stringsep
ast_instring("this|that|more","this",'|') == 1;
feel free to move this to app.c -anthm */
static int ast_instring(const char *bigstr, const char *smallstr, const char delim)
{
const char *val = bigstr, *next;
do {
if ((next = strchr(val, delim))) {
if (!strncmp(val, smallstr, (next - val))) {
return 1;
} else {
continue;
}
} else {
return !strcmp(smallstr, val);
}
} while (*(val = (next + 1)));
return 0;
}
static int get_perm(const char *instr)
{
int x = 0, ret = 0;
if (!instr) {
return 0;
}
for (x = 0; x < ARRAY_LEN(perms); x++) {
if (ast_instring(instr, perms[x].label, ',')) {
ret |= perms[x].num;
}
}
return ret;
}
/*!
* A number returns itself, false returns 0, true returns all flags,
* other strings return the flags that are set.
*/
static int strings_to_mask(const char *string)
{
const char *p;
if (ast_strlen_zero(string)) {
return -1;
}
for (p = string; *p; p++) {
if (*p < '0' || *p > '9') {
break;
}
}
if (!*p) { /* all digits */
return atoi(string);
}
if (ast_false(string)) {
return 0;
}
if (ast_true(string)) { /* all permissions */
int x, ret = 0;
for (x = 0; x < ARRAY_LEN(perms); x++) {
ret |= perms[x].num;
}
return ret;
}
return get_perm(string);
}
/*! \brief Unreference manager session object.
If no more references, then go ahead and delete it */
static struct mansession_session *unref_mansession(struct mansession_session *s)
{
int refcount = ao2_ref(s, -1);
if (manager_debug) {
ast_debug(1, "Mansession: %p refcount now %d\n", s, refcount - 1);
}
return s;
}
static void event_filter_destructor(void *obj)
{
regex_t *regex_filter = obj;
regfree(regex_filter);
}
static void session_destructor(void *obj)
{
struct mansession_session *session = obj;
struct eventqent *eqe = session->last_ev;
struct ast_datastore *datastore;
/* Get rid of each of the data stores on the session */
while ((datastore = AST_LIST_REMOVE_HEAD(&session->datastores, entry))) {
/* Free the data store */
ast_datastore_free(datastore);
}
if (session->f != NULL) {
fclose(session->f);
}
if (eqe) {
ast_atomic_fetchadd_int(&eqe->usecount, -1);
}
if (session->whitefilters) {
ao2_t_callback(session->whitefilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all white filters");
ao2_t_ref(session->whitefilters, -1 , "decrement ref for white container, should be last one");
}
if (session->blackfilters) {
ao2_t_callback(session->blackfilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all black filters");
ao2_t_ref(session->blackfilters, -1 , "decrement ref for black container, should be last one");
}
}
/*! \brief Allocate manager session structure and add it to the list of sessions */
static struct mansession_session *build_mansession(struct sockaddr_in sin)
{
struct mansession_session *newsession;
if (!(newsession = ao2_alloc(sizeof(*newsession), session_destructor))) {
return NULL;
}
if (!(newsession->whitefilters = ao2_container_alloc(1, NULL, NULL))) {
ao2_ref(newsession, -1);
return NULL;
}
if (!(newsession->blackfilters = ao2_container_alloc(1, NULL, NULL))) {
ao2_ref(newsession, -1); /* session_destructor will cleanup the other filter */
return NULL;
}
newsession->fd = -1;
newsession->waiting_thread = AST_PTHREADT_NULL;
newsession->writetimeout = 100;
newsession->send_events = -1;
newsession->sin = sin;
ao2_link(sessions, newsession);
return newsession;
}
static int mansession_cmp_fn(void *obj, void *arg, int flags)
{
struct mansession_session *s = obj;
char *str = arg;
return !strcasecmp(s->username, str) ? CMP_MATCH : 0;
}
static void session_destroy(struct mansession_session *s)
{
unref_mansession(s);
ao2_unlink(sessions, s);
}
static int check_manager_session_inuse(const char *name)
{
struct mansession_session *session = ao2_find(sessions, (char *) name, 0);
int inuse = 0;
if (session) {
inuse = 1;
unref_mansession(session);
}
return inuse;
}
/*!
* lookup an entry in the list of registered users.
* must be called with the list lock held.
*/
static struct ast_manager_user *get_manager_by_name_locked(const char *name)
{
struct ast_manager_user *user = NULL;
AST_RWLIST_TRAVERSE(&users, user, list) {
if (!strcasecmp(user->username, name)) {
break;
}
}
return user;
}
/*! \brief Get displayconnects config option.
* \param session manager session to get parameter from.
* \return displayconnects config option value.
*/
static int manager_displayconnects (struct mansession_session *session)
{
struct ast_manager_user *user = NULL;
int ret = 0;
AST_RWLIST_RDLOCK(&users);
if ((user = get_manager_by_name_locked (session->username))) {
ret = user->displayconnects;
}
AST_RWLIST_UNLOCK(&users);
return ret;
}
static char *handle_showmancmd(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct manager_action *cur;
struct ast_str *authority;
int num, l, which;
char *ret = NULL;
#ifdef AST_XML_DOCS
char syntax_title[64], description_title[64], synopsis_title[64], seealso_title[64], arguments_title[64];
#endif
switch (cmd) {
case CLI_INIT:
e->command = "manager show command";
e->usage =
"Usage: manager show command <actionname> [<actionname> [<actionname> [...]]]\n"
" Shows the detailed description for a specific Asterisk manager interface command.\n";
return NULL;
case CLI_GENERATE:
l = strlen(a->word);
which = 0;
AST_RWLIST_RDLOCK(&actions);
AST_RWLIST_TRAVERSE(&actions, cur, list) {
if (!strncasecmp(a->word, cur->action, l) && ++which > a->n) {
ret = ast_strdup(cur->action);
break; /* make sure we exit even if ast_strdup() returns NULL */
}
}
AST_RWLIST_UNLOCK(&actions);
return ret;
}
authority = ast_str_alloca(80);
if (a->argc < 4) {
return CLI_SHOWUSAGE;
}
#ifdef AST_XML_DOCS
/* setup the titles */
term_color(synopsis_title, "[Synopsis]\n", COLOR_MAGENTA, 0, 40);
term_color(description_title, "[Description]\n", COLOR_MAGENTA, 0, 40);
term_color(syntax_title, "[Syntax]\n", COLOR_MAGENTA, 0, 40);
term_color(seealso_title, "[See Also]\n", COLOR_MAGENTA, 0, 40);
term_color(arguments_title, "[Arguments]\n", COLOR_MAGENTA, 0, 40);
#endif
AST_RWLIST_RDLOCK(&actions);
AST_RWLIST_TRAVERSE(&actions, cur, list) {
for (num = 3; num < a->argc; num++) {
if (!strcasecmp(cur->action, a->argv[num])) {
#ifdef AST_XML_DOCS
if (cur->docsrc == AST_XML_DOC) {
ast_cli(a->fd, "%s%s\n\n%s%s\n\n%s%s\n\n%s%s\n\n%s%s\n\n",
syntax_title,
ast_xmldoc_printable(S_OR(cur->syntax, "Not available"), 1),
synopsis_title,
ast_xmldoc_printable(S_OR(cur->synopsis, "Not available"), 1),
description_title,
ast_xmldoc_printable(S_OR(cur->description, "Not available"), 1),
arguments_title,
ast_xmldoc_printable(S_OR(cur->arguments, "Not available"), 1),
seealso_title,
ast_xmldoc_printable(S_OR(cur->seealso, "Not available"), 1));
} else {
#endif
ast_cli(a->fd, "Action: %s\nSynopsis: %s\nPrivilege: %s\n%s\n",
cur->action, cur->synopsis,
authority_to_str(cur->authority, &authority),
S_OR(cur->description, ""));
#ifdef AST_XML_DOCS
}
#endif
}
}
}
AST_RWLIST_UNLOCK(&actions);
return CLI_SUCCESS;
}
static char *handle_mandebug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
switch (cmd) {
case CLI_INIT:
e->command = "manager set debug [on|off]";
e->usage = "Usage: manager set debug [on|off]\n Show, enable, disable debugging of the manager code.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc == 3) {
ast_cli(a->fd, "manager debug is %s\n", manager_debug? "on" : "off");
} else if (a->argc == 4) {
if (!strcasecmp(a->argv[3], "on")) {
manager_debug = 1;
} else if (!strcasecmp(a->argv[3], "off")) {
manager_debug = 0;
} else {
return CLI_SHOWUSAGE;
}
}
return CLI_SUCCESS;
}
static char *handle_showmanager(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct ast_manager_user *user = NULL;
int l, which;
char *ret = NULL;
struct ast_str *rauthority = ast_str_alloca(128);
struct ast_str *wauthority = ast_str_alloca(128);
switch (cmd) {
case CLI_INIT:
e->command = "manager show user";
e->usage =
" Usage: manager show user <user>\n"
" Display all information related to the manager user specified.\n";
return NULL;
case CLI_GENERATE:
l = strlen(a->word);
which = 0;
if (a->pos != 3) {
return NULL;
}
AST_RWLIST_RDLOCK(&users);
AST_RWLIST_TRAVERSE(&users, user, list) {
if ( !strncasecmp(a->word, user->username, l) && ++which > a->n ) {
ret = ast_strdup(user->username);
break;
}
}
AST_RWLIST_UNLOCK(&users);
return ret;
}
if (a->argc != 4) {
return CLI_SHOWUSAGE;
}
AST_RWLIST_RDLOCK(&users);
if (!(user = get_manager_by_name_locked(a->argv[3]))) {
ast_cli(a->fd, "There is no manager called %s\n", a->argv[3]);
AST_RWLIST_UNLOCK(&users);
return CLI_SUCCESS;
}
ast_cli(a->fd, "\n");
ast_cli(a->fd,
" username: %s\n"
" secret: %s\n"
" acl: %s\n"
" read perm: %s\n"
" write perm: %s\n"
"displayconnects: %s\n",
(user->username ? user->username : "(N/A)"),
(user->secret ? "<Set>" : "(N/A)"),
(user->ha ? "yes" : "no"),
authority_to_str(user->readperm, &rauthority),
authority_to_str(user->writeperm, &wauthority),
(user->displayconnects ? "yes" : "no"));
AST_RWLIST_UNLOCK(&users);
return CLI_SUCCESS;
}
static char *handle_showmanagers(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct ast_manager_user *user = NULL;
int count_amu = 0;
switch (cmd) {
case CLI_INIT:
e->command = "manager show users";
e->usage =
"Usage: manager show users\n"
" Prints a listing of all managers that are currently configured on that\n"
" system.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc != 3) {
return CLI_SHOWUSAGE;
}
AST_RWLIST_RDLOCK(&users);
/* If there are no users, print out something along those lines */
if (AST_RWLIST_EMPTY(&users)) {
ast_cli(a->fd, "There are no manager users.\n");
AST_RWLIST_UNLOCK(&users);
return CLI_SUCCESS;
}
ast_cli(a->fd, "\nusername\n--------\n");
AST_RWLIST_TRAVERSE(&users, user, list) {
ast_cli(a->fd, "%s\n", user->username);
count_amu++;
}
AST_RWLIST_UNLOCK(&users);
ast_cli(a->fd,"-------------------\n"
"%d manager users configured.\n", count_amu);
return CLI_SUCCESS;
}
/*! \brief CLI command manager list commands */
static char *handle_showmancmds(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct manager_action *cur;
struct ast_str *authority;
#define HSMC_FORMAT " %-15.15s %-15.15s %-55.55s\n"
switch (cmd) {
case CLI_INIT:
e->command = "manager show commands";
e->usage =
"Usage: manager show commands\n"
" Prints a listing of all the available Asterisk manager interface commands.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
authority = ast_str_alloca(80);
ast_cli(a->fd, HSMC_FORMAT, "Action", "Privilege", "Synopsis");
ast_cli(a->fd, HSMC_FORMAT, "------", "---------", "--------");
AST_RWLIST_RDLOCK(&actions);
AST_RWLIST_TRAVERSE(&actions, cur, list)
ast_cli(a->fd, HSMC_FORMAT, cur->action, authority_to_str(cur->authority, &authority), cur->synopsis);
AST_RWLIST_UNLOCK(&actions);
return CLI_SUCCESS;
}
/*! \brief CLI command manager list connected */
static char *handle_showmanconn(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct mansession_session *session;
time_t now = time(NULL);
#define HSMCONN_FORMAT1 " %-15.15s %-15.15s %-10.10s %-10.10s %-8.8s %-8.8s %-5.5s %-5.5s\n"
#define HSMCONN_FORMAT2 " %-15.15s %-15.15s %-10d %-10d %-8d %-8d %-5.5d %-5.5d\n"
int count = 0;
struct ao2_iterator i;
switch (cmd) {
case CLI_INIT:
e->command = "manager show connected";
e->usage =
"Usage: manager show connected\n"
" Prints a listing of the users that are currently connected to the\n"
"Asterisk manager interface.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
ast_cli(a->fd, HSMCONN_FORMAT1, "Username", "IP Address", "Start", "Elapsed", "FileDes", "HttpCnt", "Read", "Write");
i = ao2_iterator_init(sessions, 0);
while ((session = ao2_iterator_next(&i))) {
ao2_lock(session);
ast_cli(a->fd, HSMCONN_FORMAT2, session->username, ast_inet_ntoa(session->sin.sin_addr), (int)(session->sessionstart), (int)(now - session->sessionstart), session->fd, session->inuse, session->readperm, session->writeperm);
count++;
ao2_unlock(session);
unref_mansession(session);
}
ao2_iterator_destroy(&i);
ast_cli(a->fd, "%d users connected.\n", count);
return CLI_SUCCESS;
}
/*! \brief CLI command manager list eventq */
/* Should change to "manager show connected" */
static char *handle_showmaneventq(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct eventqent *s;
switch (cmd) {
case CLI_INIT:
e->command = "manager show eventq";
e->usage =
"Usage: manager show eventq\n"
" Prints a listing of all events pending in the Asterisk manger\n"
"event queue.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
AST_RWLIST_RDLOCK(&all_events);
AST_RWLIST_TRAVERSE(&all_events, s, eq_next) {
ast_cli(a->fd, "Usecount: %d\n", s->usecount);
ast_cli(a->fd, "Category: %d\n", s->category);
ast_cli(a->fd, "Event:\n%s", s->eventdata);
}
AST_RWLIST_UNLOCK(&all_events);
return CLI_SUCCESS;
}
/*! \brief CLI command manager reload */
static char *handle_manager_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
switch (cmd) {
case CLI_INIT:
e->command = "manager reload";
e->usage =
"Usage: manager reload\n"
" Reloads the manager configuration.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc > 2) {
return CLI_SHOWUSAGE;
}
reload_manager();
return CLI_SUCCESS;
}
static struct eventqent *advance_event(struct eventqent *e)
{
struct eventqent *next;
AST_RWLIST_RDLOCK(&all_events);
if ((next = AST_RWLIST_NEXT(e, eq_next))) {
ast_atomic_fetchadd_int(&next->usecount, 1);
ast_atomic_fetchadd_int(&e->usecount, -1);
}
AST_RWLIST_UNLOCK(&all_events);
return next;
}
#define GET_HEADER_FIRST_MATCH 0
#define GET_HEADER_LAST_MATCH 1
#define GET_HEADER_SKIP_EMPTY 2
/*! \brief
* Generic function to return either the first or the last matching header
* from a list of variables, possibly skipping empty strings.
* At the moment there is only one use of this function in this file,
* so we make it static.
*/
static const char *__astman_get_header(const struct message *m, char *var, int mode)
{
int x, l = strlen(var);
const char *result = "";
for (x = 0; x < m->hdrcount; x++) {
const char *h = m->headers[x];
if (!strncasecmp(var, h, l) && h[l] == ':') {
const char *value = h + l + 1;
value = ast_skip_blanks(value); /* ignore leading spaces in the value */
/* found a potential candidate */
if (mode & GET_HEADER_SKIP_EMPTY && ast_strlen_zero(value))
continue; /* not interesting */
if (mode & GET_HEADER_LAST_MATCH)
result = value; /* record the last match so far */
else
return value;
}
}
return "";
}
/*! \brief
* Return the first matching variable from an array.
* This is the legacy function and is implemented in therms of
* __astman_get_header().
*/
const char *astman_get_header(const struct message *m, char *var)
{
return __astman_get_header(m, var, GET_HEADER_FIRST_MATCH);
}
struct ast_variable *astman_get_variables(const struct message *m)
{
int varlen, x, y;
struct ast_variable *head = NULL, *cur;
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(vars)[32];
);
varlen = strlen("Variable: ");
for (x = 0; x < m->hdrcount; x++) {
char *parse, *var, *val;
if (strncasecmp("Variable: ", m->headers[x], varlen)) {
continue;
}
parse = ast_strdupa(m->headers[x] + varlen);
AST_STANDARD_APP_ARGS(args, parse);
if (!args.argc) {
continue;
}
for (y = 0; y < args.argc; y++) {
if (!args.vars[y]) {
continue;
}
var = val = ast_strdupa(args.vars[y]);
strsep(&val, "=");
if (!val || ast_strlen_zero(var)) {
continue;
}
cur = ast_variable_new(var, val, "");
cur->next = head;
head = cur;
}
}
return head;
}
/*! \brief access for hooks to send action messages to ami */
int ast_hook_send_action(struct manager_custom_hook *hook, const char *msg)
{
const char *action;
int ret = 0;
struct manager_action *tmp;
struct mansession s = {.session = NULL, };
struct message m = { 0 };
char header_buf[1025] = { '\0' };
const char *src = msg;
int x = 0;
int curlen;
if (hook == NULL) {
return -1;
}
/* convert msg string to message struct */
curlen = strlen(msg);
for (x = 0; x < curlen; x++) {
int cr; /* set if we have \r */
if (src[x] == '\r' && x+1 < curlen && src[x+1] == '\n')
cr = 2; /* Found. Update length to include \r\n */
else if (src[x] == '\n')
cr = 1; /* also accept \n only */
else
continue;
/* don't copy empty lines */
if (x) {
memmove(header_buf, src, x); /*... but trim \r\n */
header_buf[x] = '\0'; /* terminate the string */
m.headers[m.hdrcount++] = ast_strdupa(header_buf);
}
x += cr;
curlen -= x; /* remaining size */
src += x; /* update pointer */
x = -1; /* reset loop */
}
action = astman_get_header(&m,"Action");
if (action && strcasecmp(action,"login")) {
AST_RWLIST_RDLOCK(&actions);
AST_RWLIST_TRAVERSE(&actions, tmp, list) {
if (strcasecmp(action, tmp->action))
continue;
/*
* we have to simulate a session for this action request
* to be able to pass it down for processing
* This is necessary to meet the previous design of manager.c
*/
s.hook = hook;
s.f = (void*)1; /* set this to something so our request will make it through all functions that test it*/
ret = tmp->func(&s, &m);
break;
}
AST_RWLIST_UNLOCK(&actions);
}
return ret;
}
/*!
* helper function to send a string to the socket.
* Return -1 on error (e.g. buffer full).
*/
static int send_string(struct mansession *s, char *string)
{
int res;
FILE *f = s->f ? s->f : s->session->f;
int fd = s->f ? s->fd : s->session->fd;
/* It's a result from one of the hook's action invocation */
if (s->hook) {
/*
* to send responses, we're using the same function
* as for receiving events. We call the event "HookResponse"
*/
s->hook->helper(EVENT_FLAG_HOOKRESPONSE, "HookResponse", string);
return 0;
}
if ((res = ast_careful_fwrite(f, fd, string, strlen(string), s->session->writetimeout))) {
s->write_error = 1;
}
return res;
}
/*!
* \brief thread local buffer for astman_append
*
* \note This can not be defined within the astman_append() function
* because it declares a couple of functions that get used to
* initialize the thread local storage key.
*/
AST_THREADSTORAGE(astman_append_buf);
AST_THREADSTORAGE(userevent_buf);
/*! \brief initial allocated size for the astman_append_buf */
#define ASTMAN_APPEND_BUF_INITSIZE 256
/*!
* utility functions for creating AMI replies
*/
void astman_append(struct mansession *s, const char *fmt, ...)
{
va_list ap;
struct ast_str *buf;
if (!(buf = ast_str_thread_get(&astman_append_buf, ASTMAN_APPEND_BUF_INITSIZE))) {
return;
}
va_start(ap, fmt);
ast_str_set_va(&buf, 0, fmt, ap);
va_end(ap);
if (s->f != NULL || s->session->f != NULL) {
send_string(s, ast_str_buffer(buf));
} else {
ast_verbose("fd == -1 in astman_append, should not happen\n");
}
}
/*! \note NOTE: XXX this comment is unclear and possibly wrong.
Callers of astman_send_error(), astman_send_response() or astman_send_ack() must EITHER
hold the session lock _or_ be running in an action callback (in which case s->session->busy will
be non-zero). In either of these cases, there is no need to lock-protect the session's
fd, since no other output will be sent (events will be queued), and no input will
be read until either the current action finishes or get_input() obtains the session
lock.
*/
/*! \todo XXX MSG_MOREDATA should go to a header file. */
#define MSG_MOREDATA ((char *)astman_send_response)
/*! \brief send a response with an optional message,
* and terminate it with an empty line.
* m is used only to grab the 'ActionID' field.
*
* Use the explicit constant MSG_MOREDATA to remove the empty line.
* XXX MSG_MOREDATA should go to a header file.
*/
static void astman_send_response_full(struct mansession *s, const struct message *m, char *resp, char *msg, char *listflag)
{
const char *id = astman_get_header(m, "ActionID");
astman_append(s, "Response: %s\r\n", resp);
if (!ast_strlen_zero(id)) {
astman_append(s, "ActionID: %s\r\n", id);
}
if (listflag) {
astman_append(s, "EventList: %s\r\n", listflag); /* Start, complete, cancelled */
}
if (msg == MSG_MOREDATA) {
return;
} else if (msg) {
astman_append(s, "Message: %s\r\n\r\n", msg);
} else {
astman_append(s, "\r\n");
}
}
void astman_send_response(struct mansession *s, const struct message *m, char *resp, char *msg)
{
astman_send_response_full(s, m, resp, msg, NULL);
}
void astman_send_error(struct mansession *s, const struct message *m, char *error)
{
astman_send_response_full(s, m, "Error", error, NULL);
}
void astman_send_ack(struct mansession *s, const struct message *m, char *msg)
{
astman_send_response_full(s, m, "Success", msg, NULL);
}
static void astman_start_ack(struct mansession *s, const struct message *m)
{
astman_send_response_full(s, m, "Success", MSG_MOREDATA, NULL);
}
void astman_send_listack(struct mansession *s, const struct message *m, char *msg, char *listflag)
{
astman_send_response_full(s, m, "Success", msg, listflag);
}
/*! \brief Lock the 'mansession' structure. */
static void mansession_lock(struct mansession *s)
{
ast_mutex_lock(&s->lock);
}
/*! \brief Unlock the 'mansession' structure. */
static void mansession_unlock(struct mansession *s)
{
ast_mutex_unlock(&s->lock);
}
/*! \brief
Rather than braindead on,off this now can also accept a specific int mask value
or a ',' delim list of mask strings (the same as manager.conf) -anthm
*/
static int set_eventmask(struct mansession *s, const char *eventmask)
{
int maskint = strings_to_mask(eventmask);
ao2_lock(s->session);
if (maskint >= 0) {
s->session->send_events = maskint;
}
ao2_unlock(s->session);
return maskint;
}
static enum ast_security_event_transport_type mansession_get_transport(const struct mansession *s)
{
return s->tcptls_session->parent->tls_cfg ? AST_SECURITY_EVENT_TRANSPORT_TLS :
AST_SECURITY_EVENT_TRANSPORT_TCP;
}
static struct sockaddr_in *mansession_encode_sin_local(const struct mansession *s,
struct sockaddr_in *sin_local)
{
ast_sockaddr_to_sin(&s->tcptls_session->parent->local_address,
sin_local);
return sin_local;
}
static void report_invalid_user(const struct mansession *s, const char *username)
{
struct sockaddr_in sin_local;
char session_id[32];
struct ast_security_event_inval_acct_id inval_acct_id = {
.common.event_type = AST_SECURITY_EVENT_INVAL_ACCT_ID,
.common.version = AST_SECURITY_EVENT_INVAL_ACCT_ID_VERSION,
.common.service = "AMI",
.common.account_id = username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
};
snprintf(session_id, sizeof(session_id), "%p", s);
ast_security_event_report(AST_SEC_EVT(&inval_acct_id));
}
static void report_failed_acl(const struct mansession *s, const char *username)
{
struct sockaddr_in sin_local;
char session_id[32];
struct ast_security_event_failed_acl failed_acl_event = {
.common.event_type = AST_SECURITY_EVENT_FAILED_ACL,
.common.version = AST_SECURITY_EVENT_FAILED_ACL_VERSION,
.common.service = "AMI",
.common.account_id = username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
};
snprintf(session_id, sizeof(session_id), "%p", s->session);
ast_security_event_report(AST_SEC_EVT(&failed_acl_event));
}
static void report_inval_password(const struct mansession *s, const char *username)
{
struct sockaddr_in sin_local;
char session_id[32];
struct ast_security_event_inval_password inval_password = {
.common.event_type = AST_SECURITY_EVENT_INVAL_PASSWORD,
.common.version = AST_SECURITY_EVENT_INVAL_PASSWORD_VERSION,
.common.service = "AMI",
.common.account_id = username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
};
snprintf(session_id, sizeof(session_id), "%p", s->session);
ast_security_event_report(AST_SEC_EVT(&inval_password));
}
static void report_auth_success(const struct mansession *s)
{
struct sockaddr_in sin_local;
char session_id[32];
struct ast_security_event_successful_auth successful_auth = {
.common.event_type = AST_SECURITY_EVENT_SUCCESSFUL_AUTH,
.common.version = AST_SECURITY_EVENT_SUCCESSFUL_AUTH_VERSION,
.common.service = "AMI",
.common.account_id = s->session->username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
};
snprintf(session_id, sizeof(session_id), "%p", s->session);
ast_security_event_report(AST_SEC_EVT(&successful_auth));
}
static void report_req_not_allowed(const struct mansession *s, const char *action)
{
struct sockaddr_in sin_local;
char session_id[32];
char request_type[64];
struct ast_security_event_req_not_allowed req_not_allowed = {
.common.event_type = AST_SECURITY_EVENT_REQ_NOT_ALLOWED,
.common.version = AST_SECURITY_EVENT_REQ_NOT_ALLOWED_VERSION,
.common.service = "AMI",
.common.account_id = s->session->username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
.request_type = request_type,
};
snprintf(session_id, sizeof(session_id), "%p", s->session);
snprintf(request_type, sizeof(request_type), "Action: %s", action);
ast_security_event_report(AST_SEC_EVT(&req_not_allowed));
}
static void report_req_bad_format(const struct mansession *s, const char *action)
{
struct sockaddr_in sin_local;
char session_id[32];
char request_type[64];
struct ast_security_event_req_bad_format req_bad_format = {
.common.event_type = AST_SECURITY_EVENT_REQ_BAD_FORMAT,
.common.version = AST_SECURITY_EVENT_REQ_BAD_FORMAT_VERSION,
.common.service = "AMI",
.common.account_id = s->session->username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
.request_type = request_type,
};
snprintf(session_id, sizeof(session_id), "%p", s->session);
snprintf(request_type, sizeof(request_type), "Action: %s", action);
ast_security_event_report(AST_SEC_EVT(&req_bad_format));
}
static void report_failed_challenge_response(const struct mansession *s,
const char *response, const char *expected_response)
{
struct sockaddr_in sin_local;
char session_id[32];
struct ast_security_event_chal_resp_failed chal_resp_failed = {
.common.event_type = AST_SECURITY_EVENT_CHAL_RESP_FAILED,
.common.version = AST_SECURITY_EVENT_CHAL_RESP_FAILED_VERSION,
.common.service = "AMI",
.common.account_id = s->session->username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
.challenge = s->session->challenge,
.response = response,
.expected_response = expected_response,
};
snprintf(session_id, sizeof(session_id), "%p", s->session);
ast_security_event_report(AST_SEC_EVT(&chal_resp_failed));
}
static void report_session_limit(const struct mansession *s)
{
struct sockaddr_in sin_local;
char session_id[32];
struct ast_security_event_session_limit session_limit = {
.common.event_type = AST_SECURITY_EVENT_SESSION_LIMIT,
.common.version = AST_SECURITY_EVENT_SESSION_LIMIT_VERSION,
.common.service = "AMI",
.common.account_id = s->session->username,
.common.session_tv = &s->session->sessionstart_tv,
.common.local_addr = {
.sin = mansession_encode_sin_local(s, &sin_local),
.transport = mansession_get_transport(s),
},
.common.remote_addr = {
.sin = &s->session->sin,
.transport = mansession_get_transport(s),
},
.common.session_id = session_id,
};
snprintf(session_id, sizeof(session_id), "%p", s->session);
ast_security_event_report(AST_SEC_EVT(&session_limit));
}
/*
* Here we start with action_ handlers for AMI actions,
* and the internal functions used by them.
* Generally, the handlers are called action_foo()
*/
/* helper function for action_login() */
static int authenticate(struct mansession *s, const struct message *m)
{
const char *username = astman_get_header(m, "Username");
const char *password = astman_get_header(m, "Secret");
int error = -1;
struct ast_manager_user *user = NULL;
regex_t *regex_filter;
struct ao2_iterator filter_iter;
struct ast_sockaddr addr;
if (ast_strlen_zero(username)) { /* missing username */
return -1;
}
/* locate user in locked state */
AST_RWLIST_WRLOCK(&users);
ast_sockaddr_from_sin(&addr, &s->session->sin);
if (!(user = get_manager_by_name_locked(username))) {
report_invalid_user(s, username);
ast_log(LOG_NOTICE, "%s tried to authenticate with nonexistent user '%s'\n", ast_inet_ntoa(s->session->sin.sin_addr), username);
} else if (user->ha && !ast_apply_ha(user->ha, &addr)) {
report_failed_acl(s, username);
ast_log(LOG_NOTICE, "%s failed to pass IP ACL as '%s'\n", ast_inet_ntoa(s->session->sin.sin_addr), username);
} else if (!strcasecmp(astman_get_header(m, "AuthType"), "MD5")) {
const char *key = astman_get_header(m, "Key");
if (!ast_strlen_zero(key) && !ast_strlen_zero(s->session->challenge) && user->secret) {
int x;
int len = 0;
char md5key[256] = "";
struct MD5Context md5;
unsigned char digest[16];
MD5Init(&md5);
MD5Update(&md5, (unsigned char *) s->session->challenge, strlen(s->session->challenge));
MD5Update(&md5, (unsigned char *) user->secret, strlen(user->secret));
MD5Final(digest, &md5);
for (x = 0; x < 16; x++)
len += sprintf(md5key + len, "%2.2x", digest[x]);
if (!strcmp(md5key, key)) {
error = 0;
} else {
report_failed_challenge_response(s, key, md5key);
}
} else {
ast_debug(1, "MD5 authentication is not possible. challenge: '%s'\n",
S_OR(s->session->challenge, ""));
}
} else if (user->secret) {
if (!strcmp(password, user->secret)) {
error = 0;
} else {
report_inval_password(s, username);
}
}
if (error) {
ast_log(LOG_NOTICE, "%s failed to authenticate as '%s'\n", ast_inet_ntoa(s->session->sin.sin_addr), username);
AST_RWLIST_UNLOCK(&users);
return -1;
}
/* auth complete */
/* All of the user parameters are copied to the session so that in the event
* of a reload and a configuration change, the session parameters are not
* changed. */
ast_copy_string(s->session->username, username, sizeof(s->session->username));
s->session->readperm = user->readperm;
s->session->writeperm = user->writeperm;
s->session->writetimeout = user->writetimeout;
filter_iter = ao2_iterator_init(user->whitefilters, 0);
while ((regex_filter = ao2_iterator_next(&filter_iter))) {
ao2_t_link(s->session->whitefilters, regex_filter, "add white user filter to session");
ao2_t_ref(regex_filter, -1, "remove iterator ref");
}
ao2_iterator_destroy(&filter_iter);
filter_iter = ao2_iterator_init(user->blackfilters, 0);
while ((regex_filter = ao2_iterator_next(&filter_iter))) {
ao2_t_link(s->session->blackfilters, regex_filter, "add black user filter to session");
ao2_t_ref(regex_filter, -1, "remove iterator ref");
}
ao2_iterator_destroy(&filter_iter);
s->session->sessionstart = time(NULL);
s->session->sessionstart_tv = ast_tvnow();
set_eventmask(s, astman_get_header(m, "Events"));
report_auth_success(s);
AST_RWLIST_UNLOCK(&users);
return 0;
}
static int action_ping(struct mansession *s, const struct message *m)
{
const char *actionid = astman_get_header(m, "ActionID");
struct timeval now = ast_tvnow();
astman_append(s, "Response: Success\r\n");
if (!ast_strlen_zero(actionid)){
astman_append(s, "ActionID: %s\r\n", actionid);
}
astman_append(
s,
"Ping: Pong\r\n"
"Timestamp: %ld.%06lu\r\n"
"\r\n",
(long) now.tv_sec, (unsigned long) now.tv_usec);
return 0;
}
static int action_getconfig(struct mansession *s, const struct message *m)
{
struct ast_config *cfg;
const char *fn = astman_get_header(m, "Filename");
const char *category = astman_get_header(m, "Category");
int catcount = 0;
int lineno = 0;
char *cur_category = NULL;
struct ast_variable *v;
struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };
if (ast_strlen_zero(fn)) {
astman_send_error(s, m, "Filename not specified");
return 0;
}
cfg = ast_config_load2(fn, "manager", config_flags);
if (cfg == CONFIG_STATUS_FILEMISSING) {
astman_send_error(s, m, "Config file not found");
return 0;
} else if (cfg == CONFIG_STATUS_FILEINVALID) {
astman_send_error(s, m, "Config file has invalid format");
return 0;
}
astman_start_ack(s, m);
while ((cur_category = ast_category_browse(cfg, cur_category))) {
if (ast_strlen_zero(category) || (!ast_strlen_zero(category) && !strcmp(category, cur_category))) {
lineno = 0;
astman_append(s, "Category-%06d: %s\r\n", catcount, cur_category);
for (v = ast_variable_browse(cfg, cur_category); v; v = v->next) {
astman_append(s, "Line-%06d-%06d: %s=%s\r\n", catcount, lineno++, v->name, v->value);
}
catcount++;
}
}
if (!ast_strlen_zero(category) && catcount == 0) { /* TODO: actually, a config with no categories doesn't even get loaded */
astman_append(s, "No categories found\r\n");
}
ast_config_destroy(cfg);
astman_append(s, "\r\n");
return 0;
}
static int action_listcategories(struct mansession *s, const struct message *m)
{
struct ast_config *cfg;
const char *fn = astman_get_header(m, "Filename");
char *category = NULL;
struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };
int catcount = 0;
if (ast_strlen_zero(fn)) {
astman_send_error(s, m, "Filename not specified");
return 0;
}
if (!(cfg = ast_config_load2(fn, "manager", config_flags))) {
astman_send_error(s, m, "Config file not found");
return 0;
} else if (cfg == CONFIG_STATUS_FILEINVALID) {
astman_send_error(s, m, "Config file has invalid format");
return 0;
}
astman_start_ack(s, m);
while ((category = ast_category_browse(cfg, category))) {
astman_append(s, "Category-%06d: %s\r\n", catcount, category);
catcount++;
}
if (catcount == 0) { /* TODO: actually, a config with no categories doesn't even get loaded */
astman_append(s, "Error: no categories found\r\n");
}
ast_config_destroy(cfg);
astman_append(s, "\r\n");
return 0;
}
/*! The amount of space in out must be at least ( 2 * strlen(in) + 1 ) */
static void json_escape(char *out, const char *in)
{
for (; *in; in++) {
if (*in == '\\' || *in == '\"') {
*out++ = '\\';
}
*out++ = *in;
}
*out = '\0';
}
static int action_getconfigjson(struct mansession *s, const struct message *m)
{
struct ast_config *cfg;
const char *fn = astman_get_header(m, "Filename");
char *category = NULL;
struct ast_variable *v;
int comma1 = 0;
char *buf = NULL;
unsigned int buf_len = 0;
struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };
if (ast_strlen_zero(fn)) {
astman_send_error(s, m, "Filename not specified");
return 0;
}
if (!(cfg = ast_config_load2(fn, "manager", config_flags))) {
astman_send_error(s, m, "Config file not found");
return 0;
} else if (cfg == CONFIG_STATUS_FILEINVALID) {
astman_send_error(s, m, "Config file has invalid format");
return 0;
}
buf_len = 512;
buf = alloca(buf_len);
astman_start_ack(s, m);
astman_append(s, "JSON: {");
while ((category = ast_category_browse(cfg, category))) {
int comma2 = 0;
if (buf_len < 2 * strlen(category) + 1) {
buf_len *= 2;
buf = alloca(buf_len);
}
json_escape(buf, category);
astman_append(s, "%s\"%s\":[", comma1 ? "," : "", buf);
if (!comma1) {
comma1 = 1;
}
for (v = ast_variable_browse(cfg, category); v; v = v->next) {
if (comma2) {
astman_append(s, ",");
}
if (buf_len < 2 * strlen(v->name) + 1) {
buf_len *= 2;
buf = alloca(buf_len);
}
json_escape(buf, v->name);
astman_append(s, "\"%s", buf);
if (buf_len < 2 * strlen(v->value) + 1) {
buf_len *= 2;
buf = alloca(buf_len);
}
json_escape(buf, v->value);
astman_append(s, "%s\"", buf);
if (!comma2) {
comma2 = 1;
}
}
astman_append(s, "]");
}
astman_append(s, "}\r\n\r\n");
ast_config_destroy(cfg);
return 0;
}
/*! \brief helper function for action_updateconfig */
static enum error_type handle_updates(struct mansession *s, const struct message *m, struct ast_config *cfg, const char *dfn)
{
int x;
char hdr[40];
const char *action, *cat, *var, *value, *match, *line;
struct ast_category *category;
struct ast_variable *v;
struct ast_str *str1 = ast_str_create(16), *str2 = ast_str_create(16);
enum error_type result = 0;
for (x = 0; x < 100000; x++) { /* 100000 = the max number of allowed updates + 1 */
unsigned int object = 0;
snprintf(hdr, sizeof(hdr), "Action-%06d", x);
action = astman_get_header(m, hdr);
if (ast_strlen_zero(action)) /* breaks the for loop if no action header */
break; /* this could cause problems if actions come in misnumbered */
snprintf(hdr, sizeof(hdr), "Cat-%06d", x);
cat = astman_get_header(m, hdr);
if (ast_strlen_zero(cat)) { /* every action needs a category */
result = UNSPECIFIED_CATEGORY;
break;
}
snprintf(hdr, sizeof(hdr), "Var-%06d", x);
var = astman_get_header(m, hdr);
snprintf(hdr, sizeof(hdr), "Value-%06d", x);
value = astman_get_header(m, hdr);
if (!ast_strlen_zero(value) && *value == '>') {
object = 1;
value++;
}
snprintf(hdr, sizeof(hdr), "Match-%06d", x);
match = astman_get_header(m, hdr);
snprintf(hdr, sizeof(hdr), "Line-%06d", x);
line = astman_get_header(m, hdr);
if (!strcasecmp(action, "newcat")) {
if (ast_category_get(cfg,cat)) { /* check to make sure the cat doesn't */
result = FAILURE_NEWCAT; /* already exist */
break;
}
if (!(category = ast_category_new(cat, dfn, -1))) {
result = FAILURE_ALLOCATION;
break;
}
if (ast_strlen_zero(match)) {
ast_category_append(cfg, category);
} else {
ast_category_insert(cfg, category, match);
}
} else if (!strcasecmp(action, "renamecat")) {
if (ast_strlen_zero(value)) {
result = UNSPECIFIED_ARGUMENT;
break;
}
if (!(category = ast_category_get(cfg, cat))) {
result = UNKNOWN_CATEGORY;
break;
}
ast_category_rename(category, value);
} else if (!strcasecmp(action, "delcat")) {
if (ast_category_delete(cfg, cat)) {
result = FAILURE_DELCAT;
break;
}
} else if (!strcasecmp(action, "emptycat")) {
if (ast_category_empty(cfg, cat)) {
result = FAILURE_EMPTYCAT;
break;
}
} else if (!strcasecmp(action, "update")) {
if (ast_strlen_zero(var)) {
result = UNSPECIFIED_ARGUMENT;
break;
}
if (!(category = ast_category_get(cfg,cat))) {
result = UNKNOWN_CATEGORY;
break;
}
if (ast_variable_update(category, var, value, match, object)) {
result = FAILURE_UPDATE;
break;
}
} else if (!strcasecmp(action, "delete")) {
if ((ast_strlen_zero(var) && ast_strlen_zero(line))) {
result = UNSPECIFIED_ARGUMENT;
break;
}
if (!(category = ast_category_get(cfg, cat))) {
result = UNKNOWN_CATEGORY;
break;
}
if (ast_variable_delete(category, var, match, line)) {
result = FAILURE_DELETE;
break;
}
} else if (!strcasecmp(action, "append")) {
if (ast_strlen_zero(var)) {
result = UNSPECIFIED_ARGUMENT;
break;
}
if (!(category = ast_category_get(cfg, cat))) {
result = UNKNOWN_CATEGORY;
break;
}
if (!(v = ast_variable_new(var, value, dfn))) {
result = FAILURE_ALLOCATION;
break;
}
if (object || (match && !strcasecmp(match, "object"))) {
v->object = 1;
}
ast_variable_append(category, v);
} else if (!strcasecmp(action, "insert")) {
if (ast_strlen_zero(var) || ast_strlen_zero(line)) {
result = UNSPECIFIED_ARGUMENT;
break;
}
if (!(category = ast_category_get(cfg, cat))) {
result = UNKNOWN_CATEGORY;
break;
}
if (!(v = ast_variable_new(var, value, dfn))) {
result = FAILURE_ALLOCATION;
break;
}
ast_variable_insert(category, v, line);
}
else {
ast_log(LOG_WARNING, "Action-%06d: %s not handled\n", x, action);
result = UNKNOWN_ACTION;
break;
}
}
ast_free(str1);
ast_free(str2);
return result;
}
static int action_updateconfig(struct mansession *s, const struct message *m)
{
struct ast_config *cfg;
const char *sfn = astman_get_header(m, "SrcFilename");
const char *dfn = astman_get_header(m, "DstFilename");
int res;
const char *rld = astman_get_header(m, "Reload");
struct ast_flags config_flags = { CONFIG_FLAG_WITHCOMMENTS | CONFIG_FLAG_NOCACHE };
enum error_type result;
if (ast_strlen_zero(sfn) || ast_strlen_zero(dfn)) {
astman_send_error(s, m, "Filename not specified");
return 0;
}
if (!(cfg = ast_config_load2(sfn, "manager", config_flags))) {
astman_send_error(s, m, "Config file not found");
return 0;
} else if (cfg == CONFIG_STATUS_FILEINVALID) {
astman_send_error(s, m, "Config file has invalid format");
return 0;
}
result = handle_updates(s, m, cfg, dfn);
if (!result) {
ast_include_rename(cfg, sfn, dfn); /* change the include references from dfn to sfn, so things match up */
res = ast_config_text_file_save(dfn, cfg, "Manager");
ast_config_destroy(cfg);
if (res) {
astman_send_error(s, m, "Save of config failed");
return 0;
}
astman_send_ack(s, m, NULL);
if (!ast_strlen_zero(rld)) {
if (ast_true(rld)) {
rld = NULL;
}
ast_module_reload(rld);
}
} else {
ast_config_destroy(cfg);
switch(result) {
case UNKNOWN_ACTION:
astman_send_error(s, m, "Unknown action command");
break;
case UNKNOWN_CATEGORY:
astman_send_error(s, m, "Given category does not exist");
break;
case UNSPECIFIED_CATEGORY:
astman_send_error(s, m, "Category not specified");
break;
case UNSPECIFIED_ARGUMENT:
astman_send_error(s, m, "Problem with category, value, or line (if required)");
break;
case FAILURE_ALLOCATION:
astman_send_error(s, m, "Memory allocation failure, this should not happen");
break;
case FAILURE_NEWCAT:
astman_send_error(s, m, "Create category did not complete successfully");
break;
case FAILURE_DELCAT:
astman_send_error(s, m, "Delete category did not complete successfully");
break;
case FAILURE_EMPTYCAT:
astman_send_error(s, m, "Empty category did not complete successfully");
break;
case FAILURE_UPDATE:
astman_send_error(s, m, "Update did not complete successfully");
break;
case FAILURE_DELETE:
astman_send_error(s, m, "Delete did not complete successfully");
break;
case FAILURE_APPEND:
astman_send_error(s, m, "Append did not complete successfully");
break;
}
}
return 0;
}
static int action_createconfig(struct mansession *s, const struct message *m)
{
int fd;
const char *fn = astman_get_header(m, "Filename");
struct ast_str *filepath = ast_str_alloca(PATH_MAX);
ast_str_set(&filepath, 0, "%s/", ast_config_AST_CONFIG_DIR);
ast_str_append(&filepath, 0, "%s", fn);
if ((fd = open(ast_str_buffer(filepath), O_CREAT | O_EXCL, AST_FILE_MODE)) != -1) {
close(fd);
astman_send_ack(s, m, "New configuration file created successfully");
} else {
astman_send_error(s, m, strerror(errno));
}
return 0;
}
static int action_waitevent(struct mansession *s, const struct message *m)
{
const char *timeouts = astman_get_header(m, "Timeout");
int timeout = -1;
int x;
int needexit = 0;
const char *id = astman_get_header(m, "ActionID");
char idText[256];
if (!ast_strlen_zero(id)) {
snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
} else {
idText[0] = '\0';
}
if (!ast_strlen_zero(timeouts)) {
sscanf(timeouts, "%30i", &timeout);
if (timeout < -1) {
timeout = -1;
}
/* XXX maybe put an upper bound, or prevent the use of 0 ? */
}
ao2_lock(s->session);
if (s->session->waiting_thread != AST_PTHREADT_NULL) {
pthread_kill(s->session->waiting_thread, SIGURG);
}
if (s->session->managerid) { /* AMI-over-HTTP session */
/*
* Make sure the timeout is within the expire time of the session,
* as the client will likely abort the request if it does not see
* data coming after some amount of time.
*/
time_t now = time(NULL);
int max = s->session->sessiontimeout - now - 10;
if (max < 0) { /* We are already late. Strange but possible. */
max = 0;
}
if (timeout < 0 || timeout > max) {
timeout = max;
}
if (!s->session->send_events) { /* make sure we record events */
s->session->send_events = -1;
}
}
ao2_unlock(s->session);
/* XXX should this go inside the lock ? */
s->session->waiting_thread = pthread_self(); /* let new events wake up this thread */
ast_debug(1, "Starting waiting for an event!\n");
for (x = 0; x < timeout || timeout < 0; x++) {
ao2_lock(s->session);
if (AST_RWLIST_NEXT(s->session->last_ev, eq_next)) {
needexit = 1;
}
/* We can have multiple HTTP session point to the same mansession entry.
* The way we deal with it is not very nice: newcomers kick out the previous
* HTTP session. XXX this needs to be improved.
*/
if (s->session->waiting_thread != pthread_self()) {
needexit = 1;
}
if (s->session->needdestroy) {
needexit = 1;
}
ao2_unlock(s->session);
if (needexit) {
break;
}
if (s->session->managerid == 0) { /* AMI session */
if (ast_wait_for_input(s->session->fd, 1000)) {
break;
}
} else { /* HTTP session */
sleep(1);
}
}
ast_debug(1, "Finished waiting for an event!\n");
ao2_lock(s->session);
if (s->session->waiting_thread == pthread_self()) {
struct eventqent *eqe = s->session->last_ev;
astman_send_response(s, m, "Success", "Waiting for Event completed.");
while ((eqe = advance_event(eqe))) {
if (((s->session->readperm & eqe->category) == eqe->category) &&
((s->session->send_events & eqe->category) == eqe->category)) {
astman_append(s, "%s", eqe->eventdata);
}
s->session->last_ev = eqe;
}
astman_append(s,
"Event: WaitEventComplete\r\n"
"%s"
"\r\n", idText);
s->session->waiting_thread = AST_PTHREADT_NULL;
} else {
ast_debug(1, "Abandoning event request!\n");
}
ao2_unlock(s->session);
return 0;
}
/*! \note The actionlock is read-locked by the caller of this function */
static int action_listcommands(struct mansession *s, const struct message *m)
{
struct manager_action *cur;
struct ast_str *temp = ast_str_alloca(BUFSIZ); /* XXX very large ? */
astman_start_ack(s, m);
AST_RWLIST_TRAVERSE(&actions, cur, list) {
if (s->session->writeperm & cur->authority || cur->authority == 0) {
astman_append(s, "%s: %s (Priv: %s)\r\n",
cur->action, cur->synopsis, authority_to_str(cur->authority, &temp));
}
}
astman_append(s, "\r\n");
return 0;
}
static int action_events(struct mansession *s, const struct message *m)
{
const char *mask = astman_get_header(m, "EventMask");
int res, x;
res = set_eventmask(s, mask);
if (broken_events_action) {
/* if this option is set we should not return a response on
* error, or when all events are set */
if (res > 0) {
for (x = 0; x < ARRAY_LEN(perms); x++) {
if (!strcasecmp(perms[x].label, "all") && res == perms[x].num) {
return 0;
}
}
astman_append(s, "Response: Success\r\n"
"Events: On\r\n\r\n");
} else if (res == 0)
astman_append(s, "Response: Success\r\n"
"Events: Off\r\n\r\n");
return 0;
}
if (res > 0)
astman_append(s, "Response: Success\r\n"
"Events: On\r\n\r\n");
else if (res == 0)
astman_append(s, "Response: Success\r\n"
"Events: Off\r\n\r\n");
else
astman_send_error(s, m, "Invalid event mask");
return 0;
}
static int action_logoff(struct mansession *s, const struct message *m)
{
astman_send_response(s, m, "Goodbye", "Thanks for all the fish.");
return -1;
}
static int action_login(struct mansession *s, const struct message *m)
{
/* still authenticated - don't process again */
if (s->session->authenticated) {
astman_send_ack(s, m, "Already authenticated");
return 0;
}
if (authenticate(s, m)) {
sleep(1);
astman_send_error(s, m, "Authentication failed");
return -1;
}
s->session->authenticated = 1;
ast_atomic_fetchadd_int(&unauth_sessions, -1);
if (manager_displayconnects(s->session)) {
ast_verb(2, "%sManager '%s' logged on from %s\n", (s->session->managerid ? "HTTP " : ""), s->session->username, ast_inet_ntoa(s->session->sin.sin_addr));
}
astman_send_ack(s, m, "Authentication accepted");
if (ast_test_flag(&ast_options, AST_OPT_FLAG_FULLY_BOOTED)) {
struct ast_str *auth = ast_str_alloca(80);
const char *cat_str = authority_to_str(EVENT_FLAG_SYSTEM, &auth);
astman_append(s, "Event: FullyBooted\r\n"
"Privilege: %s\r\n"
"Status: Fully Booted\r\n\r\n", cat_str);
}
return 0;
}
static int action_challenge(struct mansession *s, const struct message *m)
{
const char *authtype = astman_get_header(m, "AuthType");
if (!strcasecmp(authtype, "MD5")) {
if (ast_strlen_zero(s->session->challenge)) {
snprintf(s->session->challenge, sizeof(s->session->challenge), "%ld", ast_random());
}
mansession_lock(s);
astman_start_ack(s, m);
astman_append(s, "Challenge: %s\r\n\r\n", s->session->challenge);
mansession_unlock(s);
} else {
astman_send_error(s, m, "Must specify AuthType");
}
return 0;
}
static int action_hangup(struct mansession *s, const struct message *m)
{
struct ast_channel *c = NULL;
int causecode = 0; /* all values <= 0 mean 'do not set hangupcause in channel' */
const char *name = astman_get_header(m, "Channel");
const char *cause = astman_get_header(m, "Cause");
if (ast_strlen_zero(name)) {
astman_send_error(s, m, "No channel specified");
return 0;
}
if (!ast_strlen_zero(cause)) {
char *endptr;
causecode = strtol(cause, &endptr, 10);
if (causecode < 0 || causecode > 127 || *endptr != '\0') {
ast_log(LOG_NOTICE, "Invalid 'Cause: %s' in manager action Hangup\n", cause);
/* keep going, better to hangup without cause than to not hang up at all */
causecode = 0; /* do not set channel's hangupcause */
}
}
if (!(c = ast_channel_get_by_name(name))) {
astman_send_error(s, m, "No such channel");
return 0;
}
ast_channel_lock(c);
if (causecode > 0) {
ast_debug(1, "Setting hangupcause of channel %s to %d (is %d now)\n",
c->name, causecode, c->hangupcause);
c->hangupcause = causecode;
}
ast_softhangup_nolock(c, AST_SOFTHANGUP_EXPLICIT);
ast_channel_unlock(c);
c = ast_channel_unref(c);
astman_send_ack(s, m, "Channel Hungup");
return 0;
}
static int action_setvar(struct mansession *s, const struct message *m)
{
struct ast_channel *c = NULL;
const char *name = astman_get_header(m, "Channel");
const char *varname = astman_get_header(m, "Variable");
const char *varval = astman_get_header(m, "Value");
int res = 0;
if (ast_strlen_zero(varname)) {
astman_send_error(s, m, "No variable specified");
return 0;
}
if (!ast_strlen_zero(name)) {
if (!(c = ast_channel_get_by_name(name))) {
astman_send_error(s, m, "No such channel");
return 0;
}
}
res = pbx_builtin_setvar_helper(c, varname, S_OR(varval, ""));
if (c) {
c = ast_channel_unref(c);
}
if (res == 0) {
astman_send_ack(s, m, "Variable Set");
} else {
astman_send_error(s, m, "Variable not set");
}
return 0;
}
static int action_getvar(struct mansession *s, const struct message *m)
{
struct ast_channel *c = NULL;
const char *name = astman_get_header(m, "Channel");
const char *varname = astman_get_header(m, "Variable");
char *varval;
char workspace[1024] = "";
if (ast_strlen_zero(varname)) {
astman_send_error(s, m, "No variable specified");
return 0;
}
if (!ast_strlen_zero(name)) {
if (!(c = ast_channel_get_by_name(name))) {
astman_send_error(s, m, "No such channel");
return 0;
}
}
if (varname[strlen(varname) - 1] == ')') {
if (!c) {
c = ast_dummy_channel_alloc();
if (c) {
ast_func_read(c, (char *) varname, workspace, sizeof(workspace));
c = ast_channel_release(c);
} else
ast_log(LOG_ERROR, "Unable to allocate bogus channel for variable substitution. Function results may be blank.\n");
} else {
ast_func_read(c, (char *) varname, workspace, sizeof(workspace));
}
varval = workspace;
} else {
pbx_retrieve_variable(c, varname, &varval, workspace, sizeof(workspace), NULL);
}
if (c) {
c = ast_channel_unref(c);
}
astman_start_ack(s, m);
astman_append(s, "Variable: %s\r\nValue: %s\r\n\r\n", varname, S_OR(varval, ""));
return 0;
}
/*! \brief Manager "status" command to show channels */
/* Needs documentation... */
static int action_status(struct mansession *s, const struct message *m)
{
const char *name = astman_get_header(m, "Channel");
const char *cvariables = astman_get_header(m, "Variables");
char *variables = ast_strdupa(S_OR(cvariables, ""));
struct ast_channel *c;
char bridge[256];
struct timeval now = ast_tvnow();
long elapsed_seconds = 0;
int channels = 0;
int all = ast_strlen_zero(name); /* set if we want all channels */
const char *id = astman_get_header(m, "ActionID");
char idText[256];
AST_DECLARE_APP_ARGS(vars,
AST_APP_ARG(name)[100];
);
struct ast_str *str = ast_str_create(1000);
struct ast_channel_iterator *iter = NULL;
if (!ast_strlen_zero(id)) {
snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
} else {
idText[0] = '\0';
}
if (all) {
if (!(iter = ast_channel_iterator_all_new())) {
ast_free(str);
astman_send_error(s, m, "Memory Allocation Failure");
return 1;
}
c = ast_channel_iterator_next(iter);
} else {
if (!(c = ast_channel_get_by_name(name))) {
astman_send_error(s, m, "No such channel");
ast_free(str);
return 0;
}
}
astman_send_ack(s, m, "Channel status will follow");
if (!ast_strlen_zero(cvariables)) {
AST_STANDARD_APP_ARGS(vars, variables);
}
/* if we look by name, we break after the first iteration */
for (; c; c = ast_channel_iterator_next(iter)) {
ast_channel_lock(c);
if (!ast_strlen_zero(cvariables)) {
int i;
ast_str_reset(str);
for (i = 0; i < vars.argc; i++) {
char valbuf[512], *ret = NULL;
if (vars.name[i][strlen(vars.name[i]) - 1] == ')') {
if (ast_func_read(c, vars.name[i], valbuf, sizeof(valbuf)) < 0) {
valbuf[0] = '\0';
}
ret = valbuf;
} else {
pbx_retrieve_variable(c, vars.name[i], &ret, valbuf, sizeof(valbuf), NULL);
}
ast_str_append(&str, 0, "Variable: %s=%s\r\n", vars.name[i], ret);
}
}
channels++;
if (c->_bridge) {
snprintf(bridge, sizeof(bridge), "BridgedChannel: %s\r\nBridgedUniqueid: %s\r\n", c->_bridge->name, c->_bridge->uniqueid);
} else {
bridge[0] = '\0';
}
if (c->pbx) {
if (c->cdr) {
elapsed_seconds = now.tv_sec - c->cdr->start.tv_sec;
}
astman_append(s,
"Event: Status\r\n"
"Privilege: Call\r\n"
"Channel: %s\r\n"
"CallerIDNum: %s\r\n"
"CallerIDName: %s\r\n"
"Accountcode: %s\r\n"
"ChannelState: %d\r\n"
"ChannelStateDesc: %s\r\n"
"Context: %s\r\n"
"Extension: %s\r\n"
"Priority: %d\r\n"
"Seconds: %ld\r\n"
"%s"
"Uniqueid: %s\r\n"
"%s"
"%s"
"\r\n",
c->name,
S_COR(c->caller.id.number.valid, c->caller.id.number.str, ""),
S_COR(c->caller.id.name.valid, c->caller.id.name.str, ""),
c->accountcode,
c->_state,
ast_state2str(c->_state), c->context,
c->exten, c->priority, (long)elapsed_seconds, bridge, c->uniqueid, ast_str_buffer(str), idText);
} else {
astman_append(s,
"Event: Status\r\n"
"Privilege: Call\r\n"
"Channel: %s\r\n"
"CallerIDNum: %s\r\n"
"CallerIDName: %s\r\n"
"Account: %s\r\n"
"State: %s\r\n"
"%s"
"Uniqueid: %s\r\n"
"%s"
"%s"
"\r\n",
c->name,
S_COR(c->caller.id.number.valid, c->caller.id.number.str, "<unknown>"),
S_COR(c->caller.id.name.valid, c->caller.id.name.str, "<unknown>"),
c->accountcode,
ast_state2str(c->_state), bridge, c->uniqueid,
ast_str_buffer(str), idText);
}
ast_channel_unlock(c);
c = ast_channel_unref(c);
if (!all) {
break;
}
}
if (iter) {
ast_channel_iterator_destroy(iter);
}
astman_append(s,
"Event: StatusComplete\r\n"
"%s"
"Items: %d\r\n"
"\r\n", idText, channels);
ast_free(str);
return 0;
}
static int action_sendtext(struct mansession *s, const struct message *m)
{
struct ast_channel *c = NULL;
const char *name = astman_get_header(m, "Channel");
const char *textmsg = astman_get_header(m, "Message");
int res = 0;
if (ast_strlen_zero(name)) {
astman_send_error(s, m, "No channel specified");
return 0;
}
if (ast_strlen_zero(textmsg)) {
astman_send_error(s, m, "No Message specified");
return 0;
}
if (!(c = ast_channel_get_by_name(name))) {
astman_send_error(s, m, "No such channel");
return 0;
}
res = ast_sendtext(c, textmsg);
c = ast_channel_unref(c);
if (res >= 0) {
astman_send_ack(s, m, "Success");
} else {
astman_send_error(s, m, "Failure");
}
return res;
}
/*! \brief action_redirect: The redirect manager command */
static int action_redirect(struct mansession *s, const struct message *m)
{
const char *name = astman_get_header(m, "Channel");
const char *name2 = astman_get_header(m, "ExtraChannel");
const char *exten = astman_get_header(m, "Exten");
const char *exten2 = astman_get_header(m, "ExtraExten");
const char *context = astman_get_header(m, "Context");
const char *context2 = astman_get_header(m, "ExtraContext");
const char *priority = astman_get_header(m, "Priority");
const char *priority2 = astman_get_header(m, "ExtraPriority");
struct ast_channel *chan, *chan2 = NULL;
int pi, pi2 = 0;
int res;
if (ast_strlen_zero(name)) {
astman_send_error(s, m, "Channel not specified");
return 0;
}
if (!ast_strlen_zero(priority) && (sscanf(priority, "%30d", &pi) != 1)) {
if ((pi = ast_findlabel_extension(NULL, context, exten, priority, NULL)) < 1) {
astman_send_error(s, m, "Invalid priority");
return 0;
}
}
if (!ast_strlen_zero(priority2) && (sscanf(priority2, "%30d", &pi2) != 1)) {
if ((pi2 = ast_findlabel_extension(NULL, context2, exten2, priority2, NULL)) < 1) {
astman_send_error(s, m, "Invalid ExtraPriority");
return 0;
}
}
if (!(chan = ast_channel_get_by_name(name))) {
char buf[256];
snprintf(buf, sizeof(buf), "Channel does not exist: %s", name);
astman_send_error(s, m, buf);
return 0;
}
if (ast_check_hangup_locked(chan)) {
astman_send_error(s, m, "Redirect failed, channel not up.");
chan = ast_channel_unref(chan);
return 0;
}
if (!ast_strlen_zero(name2)) {
chan2 = ast_channel_get_by_name(name2);
}
if (chan2 && ast_check_hangup_locked(chan2)) {
astman_send_error(s, m, "Redirect failed, extra channel not up.");
chan = ast_channel_unref(chan);
chan2 = ast_channel_unref(chan2);
return 0;
}
if (chan->pbx) {
ast_channel_lock(chan);
ast_set_flag(chan, AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
ast_channel_unlock(chan);
}
res = ast_async_goto(chan, context, exten, pi);
if (!res) {
if (!ast_strlen_zero(name2)) {
if (chan2) {
if (chan2->pbx) {
ast_channel_lock(chan2);
ast_set_flag(chan2, AST_FLAG_BRIDGE_HANGUP_DONT); /* don't let the after-bridge code run the h-exten */
ast_channel_unlock(chan2);
}
if (context2) {
res = ast_async_goto(chan2, context2, exten2, pi2);
} else {
res = ast_async_goto(chan2, context, exten, pi);
}
} else {
res = -1;
}
if (!res) {
astman_send_ack(s, m, "Dual Redirect successful");
} else {
astman_send_error(s, m, "Secondary redirect failed");
}
} else {
astman_send_ack(s, m, "Redirect successful");
}
} else {
astman_send_error(s, m, "Redirect failed");
}
if (chan) {
chan = ast_channel_unref(chan);
}
if (chan2) {
chan2 = ast_channel_unref(chan2);
}
return 0;
}
static int action_atxfer(struct mansession *s, const struct message *m)
{
const char *name = astman_get_header(m, "Channel");
const char *exten = astman_get_header(m, "Exten");
const char *context = astman_get_header(m, "Context");
struct ast_channel *chan = NULL;
struct ast_call_feature *atxfer_feature = NULL;
char *feature_code = NULL;
if (ast_strlen_zero(name)) {
astman_send_error(s, m, "No channel specified");
return 0;
}
if (ast_strlen_zero(exten)) {
astman_send_error(s, m, "No extension specified");
return 0;
}
if (!(atxfer_feature = ast_find_call_feature("atxfer"))) {
astman_send_error(s, m, "No attended transfer feature found");
return 0;
}
if (!(chan = ast_channel_get_by_name(name))) {
astman_send_error(s, m, "Channel specified does not exist");
return 0;
}
if (!ast_strlen_zero(context)) {
pbx_builtin_setvar_helper(chan, "TRANSFER_CONTEXT", context);
}
for (feature_code = atxfer_feature->exten; feature_code && *feature_code; ++feature_code) {
struct ast_frame f = { AST_FRAME_DTMF, .subclass.integer = *feature_code };
ast_queue_frame(chan, &f);
}
for (feature_code = (char *)exten; feature_code && *feature_code; ++feature_code) {
struct ast_frame f = { AST_FRAME_DTMF, .subclass.integer = *feature_code };
ast_queue_frame(chan, &f);
}
chan = ast_channel_unref(chan);
astman_send_ack(s, m, "Atxfer successfully queued");
return 0;
}
static int check_blacklist(const char *cmd)
{
char *cmd_copy, *cur_cmd;
char *cmd_words[MAX_BLACKLIST_CMD_LEN] = { NULL, };
int i;
cmd_copy = ast_strdupa(cmd);
for (i = 0; i < MAX_BLACKLIST_CMD_LEN && (cur_cmd = strsep(&cmd_copy, " ")); i++) {
cur_cmd = ast_strip(cur_cmd);
if (ast_strlen_zero(cur_cmd)) {
i--;
continue;
}
cmd_words[i] = cur_cmd;
}
for (i = 0; i < ARRAY_LEN(command_blacklist); i++) {
int j, match = 1;
for (j = 0; command_blacklist[i].words[j]; j++) {
if (ast_strlen_zero(cmd_words[j]) || strcasecmp(cmd_words[j], command_blacklist[i].words[j])) {
match = 0;
break;
}
}
if (match) {
return 1;
}
}
return 0;
}
/*! \brief Manager command "command" - execute CLI command */
static int action_command(struct mansession *s, const struct message *m)
{
const char *cmd = astman_get_header(m, "Command");
const char *id = astman_get_header(m, "ActionID");
char *buf, *final_buf;
char template[] = "/tmp/ast-ami-XXXXXX"; /* template for temporary file */
int fd;
off_t l;
if (ast_strlen_zero(cmd)) {
astman_send_error(s, m, "No command provided");
return 0;
}
if (check_blacklist(cmd)) {
astman_send_error(s, m, "Command blacklisted");
return 0;
}
fd = mkstemp(template);
astman_append(s, "Response: Follows\r\nPrivilege: Command\r\n");
if (!ast_strlen_zero(id)) {
astman_append(s, "ActionID: %s\r\n", id);
}
/* FIXME: Wedge a ActionID response in here, waiting for later changes */
ast_cli_command(fd, cmd); /* XXX need to change this to use a FILE * */
l = lseek(fd, 0, SEEK_END); /* how many chars available */
/* This has a potential to overflow the stack. Hence, use the heap. */
buf = ast_calloc(1, l + 1);
final_buf = ast_calloc(1, l + 1);
if (buf) {
lseek(fd, 0, SEEK_SET);
if (read(fd, buf, l) < 0) {
ast_log(LOG_WARNING, "read() failed: %s\n", strerror(errno));
}
buf[l] = '\0';
if (final_buf) {
term_strip(final_buf, buf, l);
final_buf[l] = '\0';
}
astman_append(s, "%s", S_OR(final_buf, buf));
ast_free(buf);
}
close(fd);
unlink(template);
astman_append(s, "--END COMMAND--\r\n\r\n");
if (final_buf) {
ast_free(final_buf);
}
return 0;
}
/*! \brief helper function for originate */
struct fast_originate_helper {
char tech[AST_MAX_EXTENSION];
/*! data can contain a channel name, extension number, username, password, etc. */
char data[512];
int timeout;
struct ast_format_cap *cap; /*!< Codecs used for a call */
char app[AST_MAX_APP];
char appdata[AST_MAX_EXTENSION];
char cid_name[AST_MAX_EXTENSION];
char cid_num[AST_MAX_EXTENSION];
char context[AST_MAX_CONTEXT];
char exten[AST_MAX_EXTENSION];
char idtext[AST_MAX_EXTENSION];
char account[AST_MAX_ACCOUNT_CODE];
int priority;
struct ast_variable *vars;
};
static void *fast_originate(void *data)
{
struct fast_originate_helper *in = data;
int res;
int reason = 0;
struct ast_channel *chan = NULL, *chans[1];
char requested_channel[AST_CHANNEL_NAME];
if (!ast_strlen_zero(in->app)) {
res = ast_pbx_outgoing_app(in->tech, in->cap, in->data, in->timeout, in->app, in->appdata, &reason, 1,
S_OR(in->cid_num, NULL),
S_OR(in->cid_name, NULL),
in->vars, in->account, &chan);
} else {
res = ast_pbx_outgoing_exten(in->tech, in->cap, in->data, in->timeout, in->context, in->exten, in->priority, &reason, 1,
S_OR(in->cid_num, NULL),
S_OR(in->cid_name, NULL),
in->vars, in->account, &chan);
}
if (!chan) {
snprintf(requested_channel, AST_CHANNEL_NAME, "%s/%s", in->tech, in->data);
}
/* Tell the manager what happened with the channel */
chans[0] = chan;
ast_manager_event_multichan(EVENT_FLAG_CALL, "OriginateResponse", chan ? 1 : 0, chans,
"%s%s"
"Response: %s\r\n"
"Channel: %s\r\n"
"Context: %s\r\n"
"Exten: %s\r\n"
"Reason: %d\r\n"
"Uniqueid: %s\r\n"
"CallerIDNum: %s\r\n"
"CallerIDName: %s\r\n",
in->idtext, ast_strlen_zero(in->idtext) ? "" : "\r\n", res ? "Failure" : "Success",
chan ? chan->name : requested_channel, in->context, in->exten, reason,
chan ? chan->uniqueid : "<null>",
S_OR(in->cid_num, "<unknown>"),
S_OR(in->cid_name, "<unknown>")
);
/* Locked by ast_pbx_outgoing_exten or ast_pbx_outgoing_app */
if (chan) {
ast_channel_unlock(chan);
}
in->cap = ast_format_cap_destroy(in->cap);
ast_free(in);
return NULL;
}
static int aocmessage_get_unit_entry(const struct message *m, struct ast_aoc_unit_entry *entry, unsigned int entry_num)
{
const char *unitamount;
const char *unittype;
struct ast_str *str = ast_str_alloca(32);
memset(entry, 0, sizeof(*entry));
ast_str_set(&str, 0, "UnitAmount(%u)", entry_num);
unitamount = astman_get_header(m, ast_str_buffer(str));
ast_str_set(&str, 0, "UnitType(%u)", entry_num);
unittype = astman_get_header(m, ast_str_buffer(str));
if (!ast_strlen_zero(unitamount) && (sscanf(unitamount, "%30u", &entry->amount) == 1)) {
entry->valid_amount = 1;
}
if (!ast_strlen_zero(unittype) && sscanf(unittype, "%30u", &entry->type) == 1) {
entry->valid_type = 1;
}
return 0;
}
static int action_aocmessage(struct mansession *s, const struct message *m)
{
const char *channel = astman_get_header(m, "Channel");
const char *pchannel = astman_get_header(m, "ChannelPrefix");
const char *msgtype = astman_get_header(m, "MsgType");
const char *chargetype = astman_get_header(m, "ChargeType");
const char *currencyname = astman_get_header(m, "CurrencyName");
const char *currencyamount = astman_get_header(m, "CurrencyAmount");
const char *mult = astman_get_header(m, "CurrencyMultiplier");
const char *totaltype = astman_get_header(m, "TotalType");
const char *aocbillingid = astman_get_header(m, "AOCBillingId");
const char *association_id= astman_get_header(m, "ChargingAssociationId");
const char *association_num = astman_get_header(m, "ChargingAssociationNumber");
const char *association_plan = astman_get_header(m, "ChargingAssociationPlan");
enum ast_aoc_type _msgtype;
enum ast_aoc_charge_type _chargetype;
enum ast_aoc_currency_multiplier _mult = AST_AOC_MULT_ONE;
enum ast_aoc_total_type _totaltype = AST_AOC_TOTAL;
enum ast_aoc_billing_id _billingid = AST_AOC_BILLING_NA;
unsigned int _currencyamount = 0;
int _association_id = 0;
unsigned int _association_plan = 0;
struct ast_channel *chan = NULL;
struct ast_aoc_decoded *decoded = NULL;
struct ast_aoc_encoded *encoded = NULL;
size_t encoded_size = 0;
if (ast_strlen_zero(channel) && ast_strlen_zero(pchannel)) {
astman_send_error(s, m, "Channel and PartialChannel are not specified. Specify at least one of these.");
goto aocmessage_cleanup;
}
if (!(chan = ast_channel_get_by_name(channel)) && !ast_strlen_zero(pchannel)) {
chan = ast_channel_get_by_name_prefix(pchannel, strlen(pchannel));
}
if (!chan) {
astman_send_error(s, m, "No such channel");
goto aocmessage_cleanup;
}
if (ast_strlen_zero(msgtype) || (strcasecmp(msgtype, "d") && strcasecmp(msgtype, "e"))) {
astman_send_error(s, m, "Invalid MsgType");
goto aocmessage_cleanup;
}
if (ast_strlen_zero(chargetype)) {
astman_send_error(s, m, "ChargeType not specified");
goto aocmessage_cleanup;
}
_msgtype = strcasecmp(msgtype, "d") ? AST_AOC_E : AST_AOC_D;
if (!strcasecmp(chargetype, "NA")) {
_chargetype = AST_AOC_CHARGE_NA;
} else if (!strcasecmp(chargetype, "Free")) {
_chargetype = AST_AOC_CHARGE_FREE;
} else if (!strcasecmp(chargetype, "Currency")) {
_chargetype = AST_AOC_CHARGE_CURRENCY;
} else if (!strcasecmp(chargetype, "Unit")) {
_chargetype = AST_AOC_CHARGE_UNIT;
} else {
astman_send_error(s, m, "Invalid ChargeType");
goto aocmessage_cleanup;
}
if (_chargetype == AST_AOC_CHARGE_CURRENCY) {
if (ast_strlen_zero(currencyamount) || (sscanf(currencyamount, "%30u", &_currencyamount) != 1)) {
astman_send_error(s, m, "Invalid CurrencyAmount, CurrencyAmount is a required when ChargeType is Currency");
goto aocmessage_cleanup;
}
if (ast_strlen_zero(mult)) {
astman_send_error(s, m, "ChargeMultiplier unspecified, ChargeMultiplier is required when ChargeType is Currency.");
goto aocmessage_cleanup;
} else if (!strcasecmp(mult, "onethousandth")) {
_mult = AST_AOC_MULT_ONETHOUSANDTH;
} else if (!strcasecmp(mult, "onehundredth")) {
_mult = AST_AOC_MULT_ONEHUNDREDTH;
} else if (!strcasecmp(mult, "onetenth")) {
_mult = AST_AOC_MULT_ONETENTH;
} else if (!strcasecmp(mult, "one")) {
_mult = AST_AOC_MULT_ONE;
} else if (!strcasecmp(mult, "ten")) {
_mult = AST_AOC_MULT_TEN;
} else if (!strcasecmp(mult, "hundred")) {
_mult = AST_AOC_MULT_HUNDRED;
} else if (!strcasecmp(mult, "thousand")) {
_mult = AST_AOC_MULT_THOUSAND;
} else {
astman_send_error(s, m, "Invalid ChargeMultiplier");
goto aocmessage_cleanup;
}
}
/* create decoded object and start setting values */
if (!(decoded = ast_aoc_create(_msgtype, _chargetype, 0))) {
astman_send_error(s, m, "Message Creation Failed");
goto aocmessage_cleanup;
}
if (_msgtype == AST_AOC_D) {
if (!ast_strlen_zero(totaltype) && !strcasecmp(totaltype, "subtotal")) {
_totaltype = AST_AOC_SUBTOTAL;
}
if (ast_strlen_zero(aocbillingid)) {
/* ignore this is optional */
} else if (!strcasecmp(aocbillingid, "Normal")) {
_billingid = AST_AOC_BILLING_NORMAL;
} else if (!strcasecmp(aocbillingid, "ReverseCharge")) {
_billingid = AST_AOC_BILLING_REVERSE_CHARGE;
} else if (!strcasecmp(aocbillingid, "CreditCard")) {
_billingid = AST_AOC_BILLING_CREDIT_CARD;
} else {
astman_send_error(s, m, "Invalid AOC-D AOCBillingId");
goto aocmessage_cleanup;
}
} else {
if (ast_strlen_zero(aocbillingid)) {
/* ignore this is optional */
} else if (!strcasecmp(aocbillingid, "Normal")) {
_billingid = AST_AOC_BILLING_NORMAL;
} else if (!strcasecmp(aocbillingid, "ReverseCharge")) {
_billingid = AST_AOC_BILLING_REVERSE_CHARGE;
} else if (!strcasecmp(aocbillingid, "CreditCard")) {
_billingid = AST_AOC_BILLING_CREDIT_CARD;
} else if (!strcasecmp(aocbillingid, "CallFwdUnconditional")) {
_billingid = AST_AOC_BILLING_CALL_FWD_UNCONDITIONAL;
} else if (!strcasecmp(aocbillingid, "CallFwdBusy")) {
_billingid = AST_AOC_BILLING_CALL_FWD_BUSY;
} else if (!strcasecmp(aocbillingid, "CallFwdNoReply")) {
_billingid = AST_AOC_BILLING_CALL_FWD_NO_REPLY;
} else if (!strcasecmp(aocbillingid, "CallDeflection")) {
_billingid = AST_AOC_BILLING_CALL_DEFLECTION;
} else if (!strcasecmp(aocbillingid, "CallTransfer")) {
_billingid = AST_AOC_BILLING_CALL_TRANSFER;
} else {
astman_send_error(s, m, "Invalid AOC-E AOCBillingId");
goto aocmessage_cleanup;
}
if (!ast_strlen_zero(association_id) && (sscanf(association_id, "%30d", &_association_id) != 1)) {
astman_send_error(s, m, "Invalid ChargingAssociationId");
goto aocmessage_cleanup;
}
if (!ast_strlen_zero(association_plan) && (sscanf(association_plan, "%30u", &_association_plan) != 1)) {
astman_send_error(s, m, "Invalid ChargingAssociationPlan");
goto aocmessage_cleanup;
}
if (_association_id) {
ast_aoc_set_association_id(decoded, _association_id);
} else if (!ast_strlen_zero(association_num)) {
ast_aoc_set_association_number(decoded, association_num, _association_plan);
}
}
if (_chargetype == AST_AOC_CHARGE_CURRENCY) {
ast_aoc_set_currency_info(decoded, _currencyamount, _mult, ast_strlen_zero(currencyname) ? NULL : currencyname);
} else if (_chargetype == AST_AOC_CHARGE_UNIT) {
struct ast_aoc_unit_entry entry;
int i;
/* multiple unit entries are possible, lets get them all */
for (i = 0; i < 32; i++) {
if (aocmessage_get_unit_entry(m, &entry, i)) {
break; /* that's the end then */
}
ast_aoc_add_unit_entry(decoded, entry.valid_amount, entry.amount, entry.valid_type, entry.type);
}
/* at least one unit entry is required */
if (!i) {
astman_send_error(s, m, "Invalid UnitAmount(0), At least one valid unit entry is required when ChargeType is set to Unit");
goto aocmessage_cleanup;
}
}
ast_aoc_set_billing_id(decoded, _billingid);
ast_aoc_set_total_type(decoded, _totaltype);
if ((encoded = ast_aoc_encode(decoded, &encoded_size, NULL)) && !ast_indicate_data(chan, AST_CONTROL_AOC, encoded, encoded_size)) {
astman_send_ack(s, m, "AOC Message successfully queued on channel");
} else {
astman_send_error(s, m, "Error encoding AOC message, could not queue onto channel");
}
aocmessage_cleanup:
ast_aoc_destroy_decoded(decoded);
ast_aoc_destroy_encoded(encoded);
if (chan) {
chan = ast_channel_unref(chan);
}
return 0;
}
static int action_originate(struct mansession *s, const struct message *m)
{
const char *name = astman_get_header(m, "Channel");
const char *exten = astman_get_header(m, "Exten");
const char *context = astman_get_header(m, "Context");
const char *priority = astman_get_header(m, "Priority");
const char *timeout = astman_get_header(m, "Timeout");
const char *callerid = astman_get_header(m, "CallerID");
const char *account = astman_get_header(m, "Account");
const char *app = astman_get_header(m, "Application");
const char *appdata = astman_get_header(m, "Data");
const char *async = astman_get_header(m, "Async");
const char *id = astman_get_header(m, "ActionID");
const char *codecs = astman_get_header(m, "Codecs");
struct ast_variable *vars;
char *tech, *data;
char *l = NULL, *n = NULL;
int pi = 0;
int res;
int to = 30000;
int reason = 0;
char tmp[256];
char tmp2[256];
struct ast_format_cap *cap = ast_format_cap_alloc_nolock();
struct ast_format tmp_fmt;
pthread_t th;
if (!cap) {
astman_send_error(s, m, "Internal Error. Memory allocation failure.");
}
ast_format_cap_add(cap, ast_format_set(&tmp_fmt, AST_FORMAT_SLINEAR, 0));
if (ast_strlen_zero(name)) {
astman_send_error(s, m, "Channel not specified");
res = 0;
goto fast_orig_cleanup;
}
if (!ast_strlen_zero(priority) && (sscanf(priority, "%30d", &pi) != 1)) {
if ((pi = ast_findlabel_extension(NULL, context, exten, priority, NULL)) < 1) {
astman_send_error(s, m, "Invalid priority");
res = 0;
goto fast_orig_cleanup;
}
}
if (!ast_strlen_zero(timeout) && (sscanf(timeout, "%30d", &to) != 1)) {
astman_send_error(s, m, "Invalid timeout");
res = 0;
goto fast_orig_cleanup;
}
ast_copy_string(tmp, name, sizeof(tmp));
tech = tmp;
data = strchr(tmp, '/');
if (!data) {
astman_send_error(s, m, "Invalid channel");
res = 0;
goto fast_orig_cleanup;
}
*data++ = '\0';
ast_copy_string(tmp2, callerid, sizeof(tmp2));
ast_callerid_parse(tmp2, &n, &l);
if (n) {
if (ast_strlen_zero(n)) {
n = NULL;
}
}
if (l) {
ast_shrink_phone_number(l);
if (ast_strlen_zero(l)) {
l = NULL;
}
}
if (!ast_strlen_zero(codecs)) {
ast_format_cap_remove_all(cap);
ast_parse_allow_disallow(NULL, cap, codecs, 1);
}
/* Allocate requested channel variables */
vars = astman_get_variables(m);
if (ast_true(async)) {
struct fast_originate_helper *fast = ast_calloc(1, sizeof(*fast));
if (!fast) {
res = -1;
} else {
if (!ast_strlen_zero(id))
snprintf(fast->idtext, sizeof(fast->idtext), "ActionID: %s", id);
ast_copy_string(fast->tech, tech, sizeof(fast->tech));
ast_copy_string(fast->data, data, sizeof(fast->data));
ast_copy_string(fast->app, app, sizeof(fast->app));
ast_copy_string(fast->appdata, appdata, sizeof(fast->appdata));
if (l) {
ast_copy_string(fast->cid_num, l, sizeof(fast->cid_num));
}
if (n) {
ast_copy_string(fast->cid_name, n, sizeof(fast->cid_name));
}
fast->vars = vars;
ast_copy_string(fast->context, context, sizeof(fast->context));
ast_copy_string(fast->exten, exten, sizeof(fast->exten));
ast_copy_string(fast->account, account, sizeof(fast->account));
fast->cap = cap;
cap = NULL; /* transfered originate helper the capabilities structure. It is now responsible for freeing it. */
fast->timeout = to;
fast->priority = pi;
if (ast_pthread_create_detached(&th, NULL, fast_originate, fast)) {
ast_format_cap_destroy(fast->cap);
ast_free(fast);
res = -1;
} else {
res = 0;
}
}
} else if (!ast_strlen_zero(app)) {
/* To run the System application (or anything else that goes to shell), you must have the additional System privilege */
if (!(s->session->writeperm & EVENT_FLAG_SYSTEM)
&& (
strcasestr(app, "system") || /* System(rm -rf /)
TrySystem(rm -rf /) */
strcasestr(app, "exec") || /* Exec(System(rm -rf /))
TryExec(System(rm -rf /)) */
strcasestr(app, "agi") || /* AGI(/bin/rm,-rf /)
EAGI(/bin/rm,-rf /) */
strstr(appdata, "SHELL") || /* NoOp(${SHELL(rm -rf /)}) */
strstr(appdata, "EVAL") /* NoOp(${EVAL(${some_var_containing_SHELL})}) */
)) {
astman_send_error(s, m, "Originate with certain 'Application' arguments requires the additional System privilege, which you do not have.");
res = 0;
goto fast_orig_cleanup;
}
res = ast_pbx_outgoing_app(tech, cap, data, to, app, appdata, &reason, 1, l, n, vars, account, NULL);
} else {
if (exten && context && pi) {
res = ast_pbx_outgoing_exten(tech, cap, data, to, context, exten, pi, &reason, 1, l, n, vars, account, NULL);
} else {
astman_send_error(s, m, "Originate with 'Exten' requires 'Context' and 'Priority'");
if (vars) {
ast_variables_destroy(vars);
}
res = 0;
goto fast_orig_cleanup;
}
}
if (!res) {
astman_send_ack(s, m, "Originate successfully queued");
} else {
astman_send_error(s, m, "Originate failed");
}
fast_orig_cleanup:
ast_format_cap_destroy(cap);
return 0;
}
static int action_mailboxstatus(struct mansession *s, const struct message *m)
{
const char *mailbox = astman_get_header(m, "Mailbox");
int ret;
if (ast_strlen_zero(mailbox)) {
astman_send_error(s, m, "Mailbox not specified");
return 0;
}
ret = ast_app_has_voicemail(mailbox, NULL);
astman_start_ack(s, m);
astman_append(s, "Message: Mailbox Status\r\n"
"Mailbox: %s\r\n"
"Waiting: %d\r\n\r\n", mailbox, ret);
return 0;
}
static int action_mailboxcount(struct mansession *s, const struct message *m)
{
const char *mailbox = astman_get_header(m, "Mailbox");
int newmsgs = 0, oldmsgs = 0, urgentmsgs = 0;;
if (ast_strlen_zero(mailbox)) {
astman_send_error(s, m, "Mailbox not specified");
return 0;
}
ast_app_inboxcount2(mailbox, &urgentmsgs, &newmsgs, &oldmsgs);
astman_start_ack(s, m);
astman_append(s, "Message: Mailbox Message Count\r\n"
"Mailbox: %s\r\n"
"UrgMessages: %d\r\n"
"NewMessages: %d\r\n"
"OldMessages: %d\r\n"
"\r\n",
mailbox, urgentmsgs, newmsgs, oldmsgs);
return 0;
}
static int action_extensionstate(struct mansession *s, const struct message *m)
{
const char *exten = astman_get_header(m, "Exten");
const char *context = astman_get_header(m, "Context");
char hint[256] = "";
int status;
if (ast_strlen_zero(exten)) {
astman_send_error(s, m, "Extension not specified");
return 0;
}
if (ast_strlen_zero(context)) {
context = "default";
}
status = ast_extension_state(NULL, context, exten);
ast_get_hint(hint, sizeof(hint) - 1, NULL, 0, NULL, context, exten);
astman_start_ack(s, m);
astman_append(s, "Message: Extension Status\r\n"
"Exten: %s\r\n"
"Context: %s\r\n"
"Hint: %s\r\n"
"Status: %d\r\n\r\n",
exten, context, hint, status);
return 0;
}
static int action_timeout(struct mansession *s, const struct message *m)
{
struct ast_channel *c;
const char *name = astman_get_header(m, "Channel");
double timeout = atof(astman_get_header(m, "Timeout"));
struct timeval when = { timeout, 0 };
if (ast_strlen_zero(name)) {
astman_send_error(s, m, "No channel specified");
return 0;
}
if (!timeout || timeout < 0) {
astman_send_error(s, m, "No timeout specified");
return 0;
}
if (!(c = ast_channel_get_by_name(name))) {
astman_send_error(s, m, "No such channel");
return 0;
}
when.tv_usec = (timeout - when.tv_sec) * 1000000.0;
ast_channel_lock(c);
ast_channel_setwhentohangup_tv(c, when);
ast_channel_unlock(c);
c = ast_channel_unref(c);
astman_send_ack(s, m, "Timeout Set");
return 0;
}
static int whitefilter_cmp_fn(void *obj, void *arg, void *data, int flags)
{
regex_t *regex_filter = obj;
const char *eventdata = arg;
int *result = data;
if (!regexec(regex_filter, eventdata, 0, NULL, 0)) {
*result = 1;
return (CMP_MATCH | CMP_STOP);
}
return 0;
}
static int blackfilter_cmp_fn(void *obj, void *arg, void *data, int flags)
{
regex_t *regex_filter = obj;
const char *eventdata = arg;
int *result = data;
if (!regexec(regex_filter, eventdata, 0, NULL, 0)) {
*result = 0;
return (CMP_MATCH | CMP_STOP);
}
*result = 1;
return 0;
}
static int match_filter(struct mansession *s, char *eventdata)
{
int result = 0;
ast_debug(3, "Examining event:\n%s\n", eventdata);
if (!ao2_container_count(s->session->whitefilters) && !ao2_container_count(s->session->blackfilters)) {
return 1; /* no filtering means match all */
} else if (ao2_container_count(s->session->whitefilters) && !ao2_container_count(s->session->blackfilters)) {
/* white filters only: implied black all filter processed first, then white filters */
ao2_t_callback_data(s->session->whitefilters, OBJ_NODATA, whitefilter_cmp_fn, eventdata, &result, "find filter in session filter container");
} else if (!ao2_container_count(s->session->whitefilters) && ao2_container_count(s->session->blackfilters)) {
/* black filters only: implied white all filter processed first, then black filters */
ao2_t_callback_data(s->session->blackfilters, OBJ_NODATA, blackfilter_cmp_fn, eventdata, &result, "find filter in session filter container");
} else {
/* white and black filters: implied black all filter processed first, then white filters, and lastly black filters */
ao2_t_callback_data(s->session->whitefilters, OBJ_NODATA, whitefilter_cmp_fn, eventdata, &result, "find filter in session filter container");
if (result) {
result = 0;
ao2_t_callback_data(s->session->blackfilters, OBJ_NODATA, blackfilter_cmp_fn, eventdata, &result, "find filter in session filter container");
}
}
return result;
}
/*!
* Send any applicable events to the client listening on this socket.
* Wait only for a finite time on each event, and drop all events whether
* they are successfully sent or not.
*/
static int process_events(struct mansession *s)
{
int ret = 0;
ao2_lock(s->session);
if (s->session->f != NULL) {
struct eventqent *eqe = s->session->last_ev;
while ((eqe = advance_event(eqe))) {
if (!ret && s->session->authenticated &&
(s->session->readperm & eqe->category) == eqe->category &&
(s->session->send_events & eqe->category) == eqe->category) {
if (match_filter(s, eqe->eventdata)) {
if (send_string(s, eqe->eventdata) < 0)
ret = -1; /* don't send more */
}
}
s->session->last_ev = eqe;
}
}
ao2_unlock(s->session);
return ret;
}
static int action_userevent(struct mansession *s, const struct message *m)
{
const char *event = astman_get_header(m, "UserEvent");
struct ast_str *body = ast_str_thread_get(&userevent_buf, 16);
int x;
ast_str_reset(body);
for (x = 0; x < m->hdrcount; x++) {
if (strncasecmp("UserEvent:", m->headers[x], strlen("UserEvent:"))) {
ast_str_append(&body, 0, "%s\r\n", m->headers[x]);
}
}
astman_send_ack(s, m, "Event Sent");
manager_event(EVENT_FLAG_USER, "UserEvent", "UserEvent: %s\r\n%s", event, ast_str_buffer(body));
return 0;
}
/*! \brief Show PBX core settings information */
static int action_coresettings(struct mansession *s, const struct message *m)
{
const char *actionid = astman_get_header(m, "ActionID");
char idText[150];
if (!ast_strlen_zero(actionid)) {
snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid);
} else {
idText[0] = '\0';
}
astman_append(s, "Response: Success\r\n"
"%s"
"AMIversion: %s\r\n"
"AsteriskVersion: %s\r\n"
"SystemName: %s\r\n"
"CoreMaxCalls: %d\r\n"
"CoreMaxLoadAvg: %f\r\n"
"CoreRunUser: %s\r\n"
"CoreRunGroup: %s\r\n"
"CoreMaxFilehandles: %d\r\n"
"CoreRealTimeEnabled: %s\r\n"
"CoreCDRenabled: %s\r\n"
"CoreHTTPenabled: %s\r\n"
"\r\n",
idText,
AMI_VERSION,
ast_get_version(),
ast_config_AST_SYSTEM_NAME,
option_maxcalls,
option_maxload,
ast_config_AST_RUN_USER,
ast_config_AST_RUN_GROUP,
option_maxfiles,
AST_CLI_YESNO(ast_realtime_enabled()),
AST_CLI_YESNO(check_cdr_enabled()),
AST_CLI_YESNO(check_webmanager_enabled())
);
return 0;
}
/*! \brief Show PBX core status information */
static int action_corestatus(struct mansession *s, const struct message *m)
{
const char *actionid = astman_get_header(m, "ActionID");
char idText[150];
char startuptime[150], startupdate[150];
char reloadtime[150], reloaddate[150];
struct ast_tm tm;
if (!ast_strlen_zero(actionid)) {
snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid);
} else {
idText[0] = '\0';
}
ast_localtime(&ast_startuptime, &tm, NULL);
ast_strftime(startuptime, sizeof(startuptime), "%H:%M:%S", &tm);
ast_strftime(startupdate, sizeof(startupdate), "%Y-%m-%d", &tm);
ast_localtime(&ast_lastreloadtime, &tm, NULL);
ast_strftime(reloadtime, sizeof(reloadtime), "%H:%M:%S", &tm);
ast_strftime(reloaddate, sizeof(reloaddate), "%Y-%m-%d", &tm);
astman_append(s, "Response: Success\r\n"
"%s"
"CoreStartupDate: %s\r\n"
"CoreStartupTime: %s\r\n"
"CoreReloadDate: %s\r\n"
"CoreReloadTime: %s\r\n"
"CoreCurrentCalls: %d\r\n"
"\r\n",
idText,
startupdate,
startuptime,
reloaddate,
reloadtime,
ast_active_channels()
);
return 0;
}
/*! \brief Send a reload event */
static int action_reload(struct mansession *s, const struct message *m)
{
const char *module = astman_get_header(m, "Module");
int res = ast_module_reload(S_OR(module, NULL));
if (res == 2) {
astman_send_ack(s, m, "Module Reloaded");
} else {
astman_send_error(s, m, s == 0 ? "No such module" : "Module does not support reload");
}
return 0;
}
/*! \brief Manager command "CoreShowChannels" - List currently defined channels
* and some information about them. */
static int action_coreshowchannels(struct mansession *s, const struct message *m)
{
const char *actionid = astman_get_header(m, "ActionID");
char idText[256];
struct ast_channel *c = NULL;
int numchans = 0;
int duration, durh, durm, durs;
struct ast_channel_iterator *iter;
if (!ast_strlen_zero(actionid)) {
snprintf(idText, sizeof(idText), "ActionID: %s\r\n", actionid);
} else {
idText[0] = '\0';
}
if (!(iter = ast_channel_iterator_all_new())) {
astman_send_error(s, m, "Memory Allocation Failure");
return 1;
}
astman_send_listack(s, m, "Channels will follow", "start");
for (; (c = ast_channel_iterator_next(iter)); ast_channel_unref(c)) {
struct ast_channel *bc;
char durbuf[10] = "";
ast_channel_lock(c);
bc = ast_bridged_channel(c);
if (c->cdr && !ast_tvzero(c->cdr->start)) {
duration = (int)(ast_tvdiff_ms(ast_tvnow(), c->cdr->start) / 1000);
durh = duration / 3600;
durm = (duration % 3600) / 60;
durs = duration % 60;
snprintf(durbuf, sizeof(durbuf), "%02d:%02d:%02d", durh, durm, durs);
}
astman_append(s,
"Event: CoreShowChannel\r\n"
"%s"
"Channel: %s\r\n"
"UniqueID: %s\r\n"
"Context: %s\r\n"
"Extension: %s\r\n"
"Priority: %d\r\n"
"ChannelState: %d\r\n"
"ChannelStateDesc: %s\r\n"
"Application: %s\r\n"
"ApplicationData: %s\r\n"
"CallerIDnum: %s\r\n"
"Duration: %s\r\n"
"AccountCode: %s\r\n"
"BridgedChannel: %s\r\n"
"BridgedUniqueID: %s\r\n"
"\r\n", idText, c->name, c->uniqueid, c->context, c->exten, c->priority, c->_state,
ast_state2str(c->_state), c->appl ? c->appl : "", c->data ? S_OR(c->data, "") : "",
S_COR(c->caller.id.number.valid, c->caller.id.number.str, ""),
durbuf, S_OR(c->accountcode, ""), bc ? bc->name : "", bc ? bc->uniqueid : "");
ast_channel_unlock(c);
numchans++;
}
astman_append(s,
"Event: CoreShowChannelsComplete\r\n"
"EventList: Complete\r\n"
"ListItems: %d\r\n"
"%s"
"\r\n", numchans, idText);
ast_channel_iterator_destroy(iter);
return 0;
}
/*! \brief Manager function to check if module is loaded */
static int manager_modulecheck(struct mansession *s, const struct message *m)
{
int res;
const char *module = astman_get_header(m, "Module");
const char *id = astman_get_header(m, "ActionID");
char idText[256];
#if !defined(LOW_MEMORY)
const char *version;
#endif
char filename[PATH_MAX];
char *cut;
ast_copy_string(filename, module, sizeof(filename));
if ((cut = strchr(filename, '.'))) {
*cut = '\0';
} else {
cut = filename + strlen(filename);
}
snprintf(cut, (sizeof(filename) - strlen(filename)) - 1, ".so");
ast_debug(1, "**** ModuleCheck .so file %s\n", filename);
res = ast_module_check(filename);
if (!res) {
astman_send_error(s, m, "Module not loaded");
return 0;
}
snprintf(cut, (sizeof(filename) - strlen(filename)) - 1, ".c");
ast_debug(1, "**** ModuleCheck .c file %s\n", filename);
#if !defined(LOW_MEMORY)
version = ast_file_version_find(filename);
#endif
if (!ast_strlen_zero(id)) {
snprintf(idText, sizeof(idText), "ActionID: %s\r\n", id);
} else {
idText[0] = '\0';
}
astman_append(s, "Response: Success\r\n%s", idText);
#if !defined(LOW_MEMORY)
astman_append(s, "Version: %s\r\n\r\n", version ? version : "");
#endif
return 0;
}
static int manager_moduleload(struct mansession *s, const struct message *m)
{
int res;
const char *module = astman_get_header(m, "Module");
const char *loadtype = astman_get_header(m, "LoadType");
if (!loadtype || strlen(loadtype) == 0) {
astman_send_error(s, m, "Incomplete ModuleLoad action.");
}
if ((!module || strlen(module) == 0) && strcasecmp(loadtype, "reload") != 0) {
astman_send_error(s, m, "Need module name");
}
if (!strcasecmp(loadtype, "load")) {
res = ast_load_resource(module);
if (res) {
astman_send_error(s, m, "Could not load module.");
} else {
astman_send_ack(s, m, "Module loaded.");
}
} else if (!strcasecmp(loadtype, "unload")) {
res = ast_unload_resource(module, AST_FORCE_SOFT);
if (res) {
astman_send_error(s, m, "Could not unload module.");
} else {
astman_send_ack(s, m, "Module unloaded.");
}
} else if (!strcasecmp(loadtype, "reload")) {
if (module != NULL) {
res = ast_module_reload(module);
if (res == 0) {
astman_send_error(s, m, "No such module.");
} else if (res == 1) {
astman_send_error(s, m, "Module does not support reload action.");
} else {
astman_send_ack(s, m, "Module reloaded.");
}
} else {
ast_module_reload(NULL); /* Reload all modules */
astman_send_ack(s, m, "All modules reloaded");
}
} else
astman_send_error(s, m, "Incomplete ModuleLoad action.");
return 0;
}
/*
* Done with the action handlers here, we start with the code in charge
* of accepting connections and serving them.
* accept_thread() forks a new thread for each connection, session_do(),
* which in turn calls get_input() repeatedly until a full message has
* been accumulated, and then invokes process_message() to pass it to
* the appropriate handler.
*/
/*! \brief
* Process an AMI message, performing desired action.
* Return 0 on success, -1 on error that require the session to be destroyed.
*/
static int process_message(struct mansession *s, const struct message *m)
{
char action[80] = "";
int ret = 0;
struct manager_action *tmp;
const char *user = astman_get_header(m, "Username");
int (*call_func)(struct mansession *s, const struct message *m) = NULL;
ast_copy_string(action, __astman_get_header(m, "Action", GET_HEADER_SKIP_EMPTY), sizeof(action));
if (ast_strlen_zero(action)) {
report_req_bad_format(s, "NONE");
mansession_lock(s);
astman_send_error(s, m, "Missing action in request");
mansession_unlock(s);
return 0;
}
if (!s->session->authenticated && strcasecmp(action, "Login") && strcasecmp(action, "Logoff") && strcasecmp(action, "Challenge")) {
if (!s->session->authenticated) {
report_req_not_allowed(s, action);
}
mansession_lock(s);
astman_send_error(s, m, "Permission denied");
mansession_unlock(s);
return 0;
}
if (!allowmultiplelogin && !s->session->authenticated && user &&
(!strcasecmp(action, "Login") || !strcasecmp(action, "Challenge"))) {
if (check_manager_session_inuse(user)) {
report_session_limit(s);
sleep(1);
mansession_lock(s);
astman_send_error(s, m, "Login Already In Use");
mansession_unlock(s);
return -1;
}
}
AST_RWLIST_RDLOCK(&actions);
AST_RWLIST_TRAVERSE(&actions, tmp, list) {
if (strcasecmp(action, tmp->action)) {
continue;
}
if (s->session->writeperm & tmp->authority || tmp->authority == 0) {
call_func = tmp->func;
} else {
astman_send_error(s, m, "Permission denied");
report_req_not_allowed(s, action);
}
break;
}
AST_RWLIST_UNLOCK(&actions);
if (tmp && call_func) {
/* call AMI function after actions list are unlocked */
ast_debug(1, "Running action '%s'\n", tmp->action);
ret = call_func(s, m);
} else {
char buf[512];
if (!tmp) {
report_req_bad_format(s, action);
}
snprintf(buf, sizeof(buf), "Invalid/unknown command: %s. Use Action: ListCommands to show available commands.", action);
mansession_lock(s);
astman_send_error(s, m, buf);
mansession_unlock(s);
}
if (ret) {
return ret;
}
/* Once done with our message, deliver any pending events unless the
requester doesn't want them as part of this response.
*/
if (ast_strlen_zero(astman_get_header(m, "SuppressEvents"))) {
return process_events(s);
} else {
return ret;
}
}
/*!
* Read one full line (including crlf) from the manager socket.
* \note \verbatim
* \r\n is the only valid terminator for the line.
* (Note that, later, '\0' will be considered as the end-of-line marker,
* so everything between the '\0' and the '\r\n' will not be used).
* Also note that we assume output to have at least "maxlen" space.
* \endverbatim
*/
static int get_input(struct mansession *s, char *output)
{
int res, x;
int maxlen = sizeof(s->session->inbuf) - 1;
char *src = s->session->inbuf;
int timeout = -1;
time_t now;
/*
* Look for \r\n within the buffer. If found, copy to the output
* buffer and return, trimming the \r\n (not used afterwards).
*/
for (x = 0; x < s->session->inlen; x++) {
int cr; /* set if we have \r */
if (src[x] == '\r' && x+1 < s->session->inlen && src[x + 1] == '\n') {
cr = 2; /* Found. Update length to include \r\n */
} else if (src[x] == '\n') {
cr = 1; /* also accept \n only */
} else {
continue;
}
memmove(output, src, x); /*... but trim \r\n */
output[x] = '\0'; /* terminate the string */
x += cr; /* number of bytes used */
s->session->inlen -= x; /* remaining size */
memmove(src, src + x, s->session->inlen); /* remove used bytes */
return 1;
}
if (s->session->inlen >= maxlen) {
/* no crlf found, and buffer full - sorry, too long for us */
ast_log(LOG_WARNING, "Dumping long line with no return from %s: %s\n", ast_inet_ntoa(s->session->sin.sin_addr), src);
s->session->inlen = 0;
}
res = 0;
while (res == 0) {
/* calculate a timeout if we are not authenticated */
if (!s->session->authenticated) {
if(time(&now) == -1) {
ast_log(LOG_ERROR, "error executing time(): %s\n", strerror(errno));
return -1;
}
timeout = (authtimeout - (now - s->session->authstart)) * 1000;
if (timeout < 0) {
/* we have timed out */
return 0;
}
}
ao2_lock(s->session);
if (s->session->pending_event) {
s->session->pending_event = 0;
ao2_unlock(s->session);
return 0;
}
s->session->waiting_thread = pthread_self();
ao2_unlock(s->session);
res = ast_wait_for_input(s->session->fd, timeout);
ao2_lock(s->session);
s->session->waiting_thread = AST_PTHREADT_NULL;
ao2_unlock(s->session);
}
if (res < 0) {
/* If we get a signal from some other thread (typically because
* there are new events queued), return 0 to notify the caller.
*/
if (errno == EINTR || errno == EAGAIN) {
return 0;
}
ast_log(LOG_WARNING, "poll() returned error: %s\n", strerror(errno));
return -1;
}
ao2_lock(s->session);
res = fread(src + s->session->inlen, 1, maxlen - s->session->inlen, s->session->f);
if (res < 1) {
res = -1; /* error return */
} else {
s->session->inlen += res;
src[s->session->inlen] = '\0';
res = 0;
}
ao2_unlock(s->session);
return res;
}
static int do_message(struct mansession *s)
{
struct message m = { 0 };
char header_buf[sizeof(s->session->inbuf)] = { '\0' };
int res;
time_t now;
for (;;) {
/* Check if any events are pending and do them if needed */
if (process_events(s)) {
return -1;
}
res = get_input(s, header_buf);
if (res == 0) {
if (!s->session->authenticated) {
if(time(&now) == -1) {
ast_log(LOG_ERROR, "error executing time(): %s\n", strerror(errno));
return -1;
}
if (now - s->session->authstart > authtimeout) {
if (displayconnects) {
ast_verb(2, "Client from %s, failed to authenticate in %d seconds\n", ast_inet_ntoa(s->session->sin.sin_addr), authtimeout);
}
return -1;
}
}
continue;
} else if (res > 0) {
if (ast_strlen_zero(header_buf)) {
return process_message(s, &m) ? -1 : 0;
} else if (m.hdrcount < (AST_MAX_MANHEADERS - 1)) {
m.headers[m.hdrcount++] = ast_strdupa(header_buf);
}
} else {
return res;
}
}
}
/*! \brief The body of the individual manager session.
* Call get_input() to read one line at a time
* (or be woken up on new events), collect the lines in a
* message until found an empty line, and execute the request.
* In any case, deliver events asynchronously through process_events()
* (called from here if no line is available, or at the end of
* process_message(). )
*/
static void *session_do(void *data)
{
struct ast_tcptls_session_instance *ser = data;
struct mansession_session *session;
struct mansession s = {
.tcptls_session = data,
};
int flags;
int res;
struct sockaddr_in ser_remote_address_tmp;
struct protoent *p;
if (ast_atomic_fetchadd_int(&unauth_sessions, +1) >= authlimit) {
fclose(ser->f);
ast_atomic_fetchadd_int(&unauth_sessions, -1);
goto done;
}
ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
session = build_mansession(ser_remote_address_tmp);
if (session == NULL) {
fclose(ser->f);
ast_atomic_fetchadd_int(&unauth_sessions, -1);
goto done;
}
/* here we set TCP_NODELAY on the socket to disable Nagle's algorithm.
* This is necessary to prevent delays (caused by buffering) as we
* write to the socket in bits and peices. */
p = getprotobyname("tcp");
if (p) {
int arg = 1;
if( setsockopt(ser->fd, p->p_proto, TCP_NODELAY, (char *)&arg, sizeof(arg) ) < 0 ) {
ast_log(LOG_WARNING, "Failed to set manager tcp connection to TCP_NODELAY mode: %s\nSome manager actions may be slow to respond.\n", strerror(errno));
}
} else {
ast_log(LOG_WARNING, "Failed to set manager tcp connection to TCP_NODELAY, getprotobyname(\"tcp\") failed\nSome manager actions may be slow to respond.\n");
}
flags = fcntl(ser->fd, F_GETFL);
if (!block_sockets) { /* make sure socket is non-blocking */
flags |= O_NONBLOCK;
} else {
flags &= ~O_NONBLOCK;
}
fcntl(ser->fd, F_SETFL, flags);
ao2_lock(session);
/* Hook to the tail of the event queue */
session->last_ev = grab_last();
ast_mutex_init(&s.lock);
/* these fields duplicate those in the 'ser' structure */
session->fd = s.fd = ser->fd;
session->f = s.f = ser->f;
session->sin = ser_remote_address_tmp;
s.session = session;
AST_LIST_HEAD_INIT_NOLOCK(&session->datastores);
if(time(&session->authstart) == -1) {
ast_log(LOG_ERROR, "error executing time(): %s; disconnecting client\n", strerror(errno));
ast_atomic_fetchadd_int(&unauth_sessions, -1);
ao2_unlock(session);
session_destroy(session);
goto done;
}
ao2_unlock(session);
astman_append(&s, "Asterisk Call Manager/%s\r\n", AMI_VERSION); /* welcome prompt */
for (;;) {
if ((res = do_message(&s)) < 0 || s.write_error) {
break;
}
}
/* session is over, explain why and terminate */
if (session->authenticated) {
if (manager_displayconnects(session)) {
ast_verb(2, "Manager '%s' logged off from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
}
} else {
ast_atomic_fetchadd_int(&unauth_sessions, -1);
if (displayconnects) {
ast_verb(2, "Connect attempt from '%s' unable to authenticate\n", ast_inet_ntoa(session->sin.sin_addr));
}
}
session_destroy(session);
ast_mutex_destroy(&s.lock);
done:
ao2_ref(ser, -1);
ser = NULL;
return NULL;
}
/*! \brief remove at most n_max stale session from the list. */
static void purge_sessions(int n_max)
{
struct mansession_session *session;
time_t now = time(NULL);
struct ao2_iterator i;
i = ao2_iterator_init(sessions, 0);
while ((session = ao2_iterator_next(&i)) && n_max > 0) {
ao2_lock(session);
if (session->sessiontimeout && (now > session->sessiontimeout) && !session->inuse) {
if (session->authenticated && (VERBOSITY_ATLEAST(2)) && manager_displayconnects(session)) {
ast_verb(2, "HTTP Manager '%s' timed out from %s\n",
session->username, ast_inet_ntoa(session->sin.sin_addr));
}
ao2_unlock(session);
session_destroy(session);
n_max--;
} else {
ao2_unlock(session);
unref_mansession(session);
}
}
ao2_iterator_destroy(&i);
}
/*! \brief
* events are appended to a queue from where they
* can be dispatched to clients.
*/
static int append_event(const char *str, int category)
{
struct eventqent *tmp = ast_malloc(sizeof(*tmp) + strlen(str));
static int seq; /* sequence number */
if (!tmp) {
return -1;
}
/* need to init all fields, because ast_malloc() does not */
tmp->usecount = 0;
tmp->category = category;
tmp->seq = ast_atomic_fetchadd_int(&seq, 1);
tmp->tv = ast_tvnow();
AST_RWLIST_NEXT(tmp, eq_next) = NULL;
strcpy(tmp->eventdata, str);
AST_RWLIST_WRLOCK(&all_events);
AST_RWLIST_INSERT_TAIL(&all_events, tmp, eq_next);
AST_RWLIST_UNLOCK(&all_events);
return 0;
}
AST_THREADSTORAGE(manager_event_funcbuf);
static void append_channel_vars(struct ast_str **pbuf, struct ast_channel *chan)
{
struct manager_channel_variable *var;
AST_RWLIST_RDLOCK(&channelvars);
AST_LIST_TRAVERSE(&channelvars, var, entry) {
const char *val = "";
if (var->isfunc) {
struct ast_str *res = ast_str_thread_get(&manager_event_funcbuf, 16);
int ret;
if (res && (ret = ast_func_read2(chan, var->name, &res, 0)) == 0) {
val = ast_str_buffer(res);
}
} else {
val = pbx_builtin_getvar_helper(chan, var->name);
}
ast_str_append(pbuf, 0, "ChanVariable(%s): %s=%s\r\n", chan->name, var->name, val ? val : "");
}
AST_RWLIST_UNLOCK(&channelvars);
}
/* XXX see if can be moved inside the function */
AST_THREADSTORAGE(manager_event_buf);
#define MANAGER_EVENT_BUF_INITSIZE 256
int __ast_manager_event_multichan(int category, const char *event, int chancount, struct
ast_channel **chans, const char *file, int line, const char *func, const char *fmt, ...)
{
struct mansession_session *session;
struct manager_custom_hook *hook;
struct ast_str *auth = ast_str_alloca(80);
const char *cat_str;
va_list ap;
struct timeval now;
struct ast_str *buf;
int i;
if (!(sessions && ao2_container_count(sessions)) && AST_RWLIST_EMPTY(&manager_hooks)) {
return 0;
}
if (!(buf = ast_str_thread_get(&manager_event_buf, MANAGER_EVENT_BUF_INITSIZE))) {
return -1;
}
cat_str = authority_to_str(category, &auth);
ast_str_set(&buf, 0,
"Event: %s\r\nPrivilege: %s\r\n",
event, cat_str);
if (timestampevents) {
now = ast_tvnow();
ast_str_append(&buf, 0,
"Timestamp: %ld.%06lu\r\n",
(long)now.tv_sec, (unsigned long) now.tv_usec);
}
if (manager_debug) {
static int seq;
ast_str_append(&buf, 0,
"SequenceNumber: %d\r\n",
ast_atomic_fetchadd_int(&seq, 1));
ast_str_append(&buf, 0,
"File: %s\r\nLine: %d\r\nFunc: %s\r\n", file, line, func);
}
va_start(ap, fmt);
ast_str_append_va(&buf, 0, fmt, ap);
va_end(ap);
for (i = 0; i < chancount; i++) {
append_channel_vars(&buf, chans[i]);
}
ast_str_append(&buf, 0, "\r\n");
append_event(ast_str_buffer(buf), category);
/* Wake up any sleeping sessions */
if (sessions) {
struct ao2_iterator i;
i = ao2_iterator_init(sessions, 0);
while ((session = ao2_iterator_next(&i))) {
ao2_lock(session);
if (session->waiting_thread != AST_PTHREADT_NULL) {
pthread_kill(session->waiting_thread, SIGURG);
} else {
/* We have an event to process, but the mansession is
* not waiting for it. We still need to indicate that there
* is an event waiting so that get_input processes the pending
* event instead of polling.
*/
session->pending_event = 1;
}
ao2_unlock(session);
unref_mansession(session);
}
ao2_iterator_destroy(&i);
}
if (!AST_RWLIST_EMPTY(&manager_hooks)) {
AST_RWLIST_RDLOCK(&manager_hooks);
AST_RWLIST_TRAVERSE(&manager_hooks, hook, list) {
hook->helper(category, event, ast_str_buffer(buf));
}
AST_RWLIST_UNLOCK(&manager_hooks);
}
return 0;
}
/*! \brief
* support functions to register/unregister AMI action handlers,
*/
int ast_manager_unregister(char *action)
{
struct manager_action *cur;
struct timespec tv = { 5, };
if (AST_RWLIST_TIMEDWRLOCK(&actions, &tv)) {
ast_log(LOG_ERROR, "Could not obtain lock on manager list\n");
return -1;
}
AST_RWLIST_TRAVERSE_SAFE_BEGIN(&actions, cur, list) {
if (!strcasecmp(action, cur->action)) {
AST_RWLIST_REMOVE_CURRENT(list);
ast_string_field_free_memory(cur);
ast_free(cur);
ast_verb(2, "Manager unregistered action %s\n", action);
break;
}
}
AST_RWLIST_TRAVERSE_SAFE_END;
AST_RWLIST_UNLOCK(&actions);
return 0;
}
static int manager_state_cb(char *context, char *exten, int state, void *data)
{
/* Notify managers of change */
char hint[512];
ast_get_hint(hint, sizeof(hint), NULL, 0, NULL, context, exten);
manager_event(EVENT_FLAG_CALL, "ExtensionStatus", "Exten: %s\r\nContext: %s\r\nHint: %s\r\nStatus: %d\r\n", exten, context, hint, state);
return 0;
}
static int ast_manager_register_struct(struct manager_action *act)
{
struct manager_action *cur, *prev = NULL;
struct timespec tv = { 5, };
if (AST_RWLIST_TIMEDWRLOCK(&actions, &tv)) {
ast_log(LOG_ERROR, "Could not obtain lock on manager list\n");
return -1;
}
AST_RWLIST_TRAVERSE(&actions, cur, list) {
int ret = strcasecmp(cur->action, act->action);
if (ret == 0) {
ast_log(LOG_WARNING, "Manager: Action '%s' already registered\n", act->action);
AST_RWLIST_UNLOCK(&actions);
return -1;
}
if (ret > 0) { /* Insert these alphabetically */
prev = cur;
break;
}
}
if (prev) {
AST_RWLIST_INSERT_AFTER(&actions, prev, act, list);
} else {
AST_RWLIST_INSERT_HEAD(&actions, act, list);
}
ast_verb(2, "Manager registered action %s\n", act->action);
AST_RWLIST_UNLOCK(&actions);
return 0;
}
/*! \brief register a new command with manager, including online help. This is
the preferred way to register a manager command */
int ast_manager_register2(const char *action, int auth, int (*func)(struct mansession *s, const struct message *m), const char *synopsis, const char *description)
{
struct manager_action *cur = NULL;
#ifdef AST_XML_DOCS
char *tmpxml;
#endif
if (!(cur = ast_calloc_with_stringfields(1, struct manager_action, 128))) {
return -1;
}
cur->action = action;
cur->authority = auth;
cur->func = func;
#ifdef AST_XML_DOCS
if (ast_strlen_zero(synopsis) && ast_strlen_zero(description)) {
tmpxml = ast_xmldoc_build_synopsis("manager", action);
ast_string_field_set(cur, synopsis, tmpxml);
ast_free(tmpxml);
tmpxml = ast_xmldoc_build_syntax("manager", action);
ast_string_field_set(cur, syntax, tmpxml);
ast_free(tmpxml);
tmpxml = ast_xmldoc_build_description("manager", action);
ast_string_field_set(cur, description, tmpxml);
ast_free(tmpxml);
tmpxml = ast_xmldoc_build_seealso("manager", action);
ast_string_field_set(cur, seealso, tmpxml);
ast_free(tmpxml);
tmpxml = ast_xmldoc_build_arguments("manager", action);
ast_string_field_set(cur, arguments, tmpxml);
ast_free(tmpxml);
cur->docsrc = AST_XML_DOC;
} else {
#endif
ast_string_field_set(cur, synopsis, synopsis);
ast_string_field_set(cur, description, description);
#ifdef AST_XML_DOCS
cur->docsrc = AST_STATIC_DOC;
}
#endif
if (ast_manager_register_struct(cur)) {
ast_free(cur);
return -1;
}
return 0;
}
/*! @}
END Doxygen group */
/*
* The following are support functions for AMI-over-http.
* The common entry point is generic_http_callback(),
* which extracts HTTP header and URI fields and reformats
* them into AMI messages, locates a proper session
* (using the mansession_id Cookie or GET variable),
* and calls process_message() as for regular AMI clients.
* When done, the output (which goes to a temporary file)
* is read back into a buffer and reformatted as desired,
* then fed back to the client over the original socket.
*/
enum output_format {
FORMAT_RAW,
FORMAT_HTML,
FORMAT_XML,
};
static const char * const contenttype[] = {
[FORMAT_RAW] = "plain",
[FORMAT_HTML] = "html",
[FORMAT_XML] = "xml",
};
/*!
* locate an http session in the list. The search key (ident) is
* the value of the mansession_id cookie (0 is not valid and means
* a session on the AMI socket).
*/
static struct mansession_session *find_session(uint32_t ident, int incinuse)
{
struct mansession_session *session;
struct ao2_iterator i;
if (ident == 0) {
return NULL;
}
i = ao2_iterator_init(sessions, 0);
while ((session = ao2_iterator_next(&i))) {
ao2_lock(session);
if (session->managerid == ident && !session->needdestroy) {
ast_atomic_fetchadd_int(&session->inuse, incinuse ? 1 : 0);
break;
}
ao2_unlock(session);
unref_mansession(session);
}
ao2_iterator_destroy(&i);
return session;
}
/*!
* locate an http session in the list.
* The search keys (nonce) and (username) is value from received
* "Authorization" http header.
* As well as in find_session() function, the value of the nonce can't be zero.
* (0 meansi, that the session used for AMI socket connection).
* Flag (stale) is set, if client used valid, but old, nonce value.
*
*/
static struct mansession_session *find_session_by_nonce(const char *username, unsigned long nonce, int *stale)
{
struct mansession_session *session;
struct ao2_iterator i;
if (nonce == 0 || username == NULL || stale == NULL) {
return NULL;
}
i = ao2_iterator_init(sessions, 0);
while ((session = ao2_iterator_next(&i))) {
ao2_lock(session);
if (!strcasecmp(session->username, username) && session->managerid == nonce) {
*stale = 0;
break;
} else if (!strcasecmp(session->username, username) && session->oldnonce == nonce) {
*stale = 1;
break;
}
ao2_unlock(session);
unref_mansession(session);
}
ao2_iterator_destroy(&i);
return session;
}
int astman_is_authed(uint32_t ident)
{
int authed;
struct mansession_session *session;
if (!(session = find_session(ident, 0)))
return 0;
authed = (session->authenticated != 0);
ao2_unlock(session);
unref_mansession(session);
return authed;
}
int astman_verify_session_readpermissions(uint32_t ident, int perm)
{
int result = 0;
struct mansession_session *session;
struct ao2_iterator i;
if (ident == 0) {
return 0;
}
i = ao2_iterator_init(sessions, 0);
while ((session = ao2_iterator_next(&i))) {
ao2_lock(session);
if ((session->managerid == ident) && (session->readperm & perm)) {
result = 1;
ao2_unlock(session);
unref_mansession(session);
break;
}
ao2_unlock(session);
unref_mansession(session);
}
ao2_iterator_destroy(&i);
return result;
}
int astman_verify_session_writepermissions(uint32_t ident, int perm)
{
int result = 0;
struct mansession_session *session;
struct ao2_iterator i;
if (ident == 0) {
return 0;
}
i = ao2_iterator_init(sessions, 0);
while ((session = ao2_iterator_next(&i))) {
ao2_lock(session);
if ((session->managerid == ident) && (session->writeperm & perm)) {
result = 1;
ao2_unlock(session);
unref_mansession(session);
break;
}
ao2_unlock(session);
unref_mansession(session);
}
ao2_iterator_destroy(&i);
return result;
}
/*
* convert to xml with various conversion:
* mode & 1 -> lowercase;
* mode & 2 -> replace non-alphanumeric chars with underscore
*/
static void xml_copy_escape(struct ast_str **out, const char *src, int mode)
{
/* store in a local buffer to avoid calling ast_str_append too often */
char buf[256];
char *dst = buf;
int space = sizeof(buf);
/* repeat until done and nothing to flush */
for ( ; *src || dst != buf ; src++) {
if (*src == '\0' || space < 10) { /* flush */
*dst++ = '\0';
ast_str_append(out, 0, "%s", buf);
dst = buf;
space = sizeof(buf);
if (*src == '\0') {
break;
}
}
if ( (mode & 2) && !isalnum(*src)) {
*dst++ = '_';
space--;
continue;
}
switch (*src) {
case '<':
strcpy(dst, "&lt;");
dst += 4;
space -= 4;
break;
case '>':
strcpy(dst, "&gt;");
dst += 4;
space -= 4;
break;
case '\"':
strcpy(dst, "&quot;");
dst += 6;
space -= 6;
break;
case '\'':
strcpy(dst, "&apos;");
dst += 6;
space -= 6;
break;
case '&':
strcpy(dst, "&amp;");
dst += 5;
space -= 5;
break;
default:
*dst++ = mode ? tolower(*src) : *src;
space--;
}
}
}
struct variable_count {
char *varname;
int count;
};
static int variable_count_hash_fn(const void *vvc, const int flags)
{
const struct variable_count *vc = vvc;
return ast_str_hash(vc->varname);
}
static int variable_count_cmp_fn(void *obj, void *vstr, int flags)
{
/* Due to the simplicity of struct variable_count, it makes no difference
* if you pass in objects or strings, the same operation applies. This is
* due to the fact that the hash occurs on the first element, which means
* the address of both the struct and the string are exactly the same. */
struct variable_count *vc = obj;
char *str = vstr;
return !strcmp(vc->varname, str) ? CMP_MATCH | CMP_STOP : 0;
}
/*! \brief Convert the input into XML or HTML.
* The input is supposed to be a sequence of lines of the form
* Name: value
* optionally followed by a blob of unformatted text.
* A blank line is a section separator. Basically, this is a
* mixture of the format of Manager Interface and CLI commands.
* The unformatted text is considered as a single value of a field
* named 'Opaque-data'.
*
* At the moment the output format is the following (but it may
* change depending on future requirements so don't count too
* much on it when writing applications):
*
* General: the unformatted text is used as a value of
* XML output: to be completed
*
* \verbatim
* Each section is within <response type="object" id="xxx">
* where xxx is taken from ajaxdest variable or defaults to unknown
* Each row is reported as an attribute Name="value" of an XML
* entity named from the variable ajaxobjtype, default to "generic"
* \endverbatim
*
* HTML output:
* each Name-value pair is output as a single row of a two-column table.
* Sections (blank lines in the input) are separated by a <HR>
*
*/
static void xml_translate(struct ast_str **out, char *in, struct ast_variable *get_vars, enum output_format format)
{
struct ast_variable *v;
const char *dest = NULL;
char *var, *val;
const char *objtype = NULL;
int in_data = 0; /* parsing data */
int inobj = 0;
int xml = (format == FORMAT_XML);
struct variable_count *vc = NULL;
struct ao2_container *vco = NULL;
if (xml) {
/* dest and objtype need only for XML format */
for (v = get_vars; v; v = v->next) {
if (!strcasecmp(v->name, "ajaxdest")) {
dest = v->value;
} else if (!strcasecmp(v->name, "ajaxobjtype")) {
objtype = v->value;
}
}
if (ast_strlen_zero(dest)) {
dest = "unknown";
}
if (ast_strlen_zero(objtype)) {
objtype = "generic";
}
}
/* we want to stop when we find an empty line */
while (in && *in) {
val = strsep(&in, "\r\n"); /* mark start and end of line */
if (in && *in == '\n') { /* remove trailing \n if any */
in++;
}
ast_trim_blanks(val);
ast_debug(5, "inobj %d in_data %d line <%s>\n", inobj, in_data, val);
if (ast_strlen_zero(val)) {
/* empty line */
if (in_data) {
/* close data in Opaque mode */
ast_str_append(out, 0, xml ? "'" : "</td></tr>\n");
in_data = 0;
}
if (inobj) {
/* close block */
ast_str_append(out, 0, xml ? " /></response>\n" :
"<tr><td colspan=\"2\"><hr></td></tr>\r\n");
inobj = 0;
ao2_ref(vco, -1);
vco = NULL;
}
continue;
}
if (!inobj) {
/* start new block */
if (xml) {
ast_str_append(out, 0, "<response type='object' id='%s'><%s", dest, objtype);
}
vco = ao2_container_alloc(37, variable_count_hash_fn, variable_count_cmp_fn);
inobj = 1;
}
if (in_data) {
/* Process data field in Opaque mode */
xml_copy_escape(out, val, 0); /* data field */
ast_str_append(out, 0, xml ? "\n" : "<br>\n");
continue;
}
/* We expect "Name: value" line here */
var = strsep(&val, ":");
if (val) {
/* found the field name */
val = ast_skip_blanks(val);
ast_trim_blanks(var);
} else {
/* field name not found, switch to opaque mode */
val = var;
var = "Opaque-data";
in_data = 1;
}
ast_str_append(out, 0, xml ? " " : "<tr><td>");
if ((vc = ao2_find(vco, var, 0))) {
vc->count++;
} else {
/* Create a new entry for this one */
vc = ao2_alloc(sizeof(*vc), NULL);
vc->varname = var;
vc->count = 1;
ao2_link(vco, vc);
}
xml_copy_escape(out, var, xml ? 1 | 2 : 0); /* data name */
if (vc->count > 1) {
ast_str_append(out, 0, "-%d", vc->count);
}
ao2_ref(vc, -1);
ast_str_append(out, 0, xml ? "='" : "</td><td>");
xml_copy_escape(out, val, 0); /* data field */
ast_str_append(out, 0, xml ? "'" : "</td></tr>\n");
}
if (inobj) {
ast_str_append(out, 0, xml ? " /></response>\n" :
"<tr><td colspan=\"2\"><hr></td></tr>\r\n");
ao2_ref(vco, -1);
}
}
static int generic_http_callback(struct ast_tcptls_session_instance *ser,
enum ast_http_method method,
enum output_format format,
struct sockaddr_in *remote_address, const char *uri,
struct ast_variable *get_params,
struct ast_variable *headers)
{
struct mansession s = { .session = NULL, .tcptls_session = ser };
struct mansession_session *session = NULL;
uint32_t ident = 0;
int blastaway = 0;
struct ast_variable *v, *cookies, *params = get_params;
char template[] = "/tmp/ast-http-XXXXXX"; /* template for temporary file */
struct ast_str *http_header = NULL, *out = NULL;
struct message m = { 0 };
unsigned int x;
size_t hdrlen;
if (method != AST_HTTP_GET && method != AST_HTTP_HEAD && method != AST_HTTP_POST) {
ast_http_error(ser, 501, "Not Implemented", "Attempt to use unimplemented / unsupported method");
return -1;
}
cookies = ast_http_get_cookies(headers);
for (v = cookies; v; v = v->next) {
if (!strcasecmp(v->name, "mansession_id")) {
sscanf(v->value, "%30x", &ident);
break;
}
}
if (cookies) {
ast_variables_destroy(cookies);
}
if (!(session = find_session(ident, 1))) {
/**/
/* Create new session.
* While it is not in the list we don't need any locking
*/
if (!(session = build_mansession(*remote_address))) {
ast_http_error(ser, 500, "Server Error", "Internal Server Error (out of memory)\n");
return -1;
}
ao2_lock(session);
session->sin = *remote_address;
session->fd = -1;
session->waiting_thread = AST_PTHREADT_NULL;
session->send_events = 0;
session->inuse = 1;
/*!\note There is approximately a 1 in 1.8E19 chance that the following
* calculation will produce 0, which is an invalid ID, but due to the
* properties of the rand() function (and the constantcy of s), that
* won't happen twice in a row.
*/
while ((session->managerid = ast_random() ^ (unsigned long) session) == 0);
session->last_ev = grab_last();
AST_LIST_HEAD_INIT_NOLOCK(&session->datastores);
}
ao2_unlock(session);
http_header = ast_str_create(128);
out = ast_str_create(2048);
ast_mutex_init(&s.lock);
if (http_header == NULL || out == NULL) {
ast_http_error(ser, 500, "Server Error", "Internal Server Error (ast_str_create() out of memory)\n");
goto generic_callback_out;
}
s.session = session;
s.fd = mkstemp(template); /* create a temporary file for command output */
unlink(template);
if (s.fd <= -1) {
ast_http_error(ser, 500, "Server Error", "Internal Server Error (mkstemp failed)\n");
goto generic_callback_out;
}
s.f = fdopen(s.fd, "w+");
if (!s.f) {
ast_log(LOG_WARNING, "HTTP Manager, fdopen failed: %s!\n", strerror(errno));
ast_http_error(ser, 500, "Server Error", "Internal Server Error (fdopen failed)\n");
close(s.fd);
goto generic_callback_out;
}
if (method == AST_HTTP_POST) {
params = ast_http_get_post_vars(ser, headers);
}
for (x = 0, v = params; v && (x < AST_MAX_MANHEADERS); x++, v = v->next) {
hdrlen = strlen(v->name) + strlen(v->value) + 3;
m.headers[m.hdrcount] = alloca(hdrlen);
snprintf((char *) m.headers[m.hdrcount], hdrlen, "%s: %s", v->name, v->value);
ast_debug(1, "HTTP Manager add header %s\n", m.headers[m.hdrcount]);
m.hdrcount = x + 1;
}
if (process_message(&s, &m)) {
if (session->authenticated) {
if (manager_displayconnects(session)) {
ast_verb(2, "HTTP Manager '%s' logged off from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
}
} else {
if (displayconnects) {
ast_verb(2, "HTTP Connect attempt from '%s' unable to authenticate\n", ast_inet_ntoa(session->sin.sin_addr));
}
}
session->needdestroy = 1;
}
ast_str_append(&http_header, 0,
"Content-type: text/%s\r\n"
"Cache-Control: no-cache;\r\n"
"Set-Cookie: mansession_id=\"%08x\"; Version=1; Max-Age=%d\r\n"
"Pragma: SuppressEvents\r\n",
contenttype[format],
session->managerid, httptimeout);
if (format == FORMAT_XML) {
ast_str_append(&out, 0, "<ajax-response>\n");
} else if (format == FORMAT_HTML) {
/*
* When handling AMI-over-HTTP in HTML format, we provide a simple form for
* debugging purposes. This HTML code should not be here, we
* should read from some config file...
*/
#define ROW_FMT "<tr><td colspan=\"2\" bgcolor=\"#f1f1ff\">%s</td></tr>\r\n"
#define TEST_STRING \
"<form action=\"manager\" method=\"post\">\n\
Action: <select name=\"action\">\n\
<option value=\"\">-----&gt;</option>\n\
<option value=\"login\">login</option>\n\
<option value=\"command\">Command</option>\n\
<option value=\"waitevent\">waitevent</option>\n\
<option value=\"listcommands\">listcommands</option>\n\
</select>\n\
or <input name=\"action\"><br/>\n\
CLI Command <input name=\"command\"><br>\n\
user <input name=\"username\"> pass <input type=\"password\" name=\"secret\"><br>\n\
<input type=\"submit\">\n</form>\n"
ast_str_append(&out, 0, "<title>Asterisk&trade; Manager Interface</title>");
ast_str_append(&out, 0, "<body bgcolor=\"#ffffff\"><table align=center bgcolor=\"#f1f1f1\" width=\"500\">\r\n");
ast_str_append(&out, 0, ROW_FMT, "<h1>Manager Tester</h1>");
ast_str_append(&out, 0, ROW_FMT, TEST_STRING);
}
if (s.f != NULL) { /* have temporary output */
char *buf;
size_t l;
if ((l = ftell(s.f))) {
if (MAP_FAILED == (buf = mmap(NULL, l + 1, PROT_READ | PROT_WRITE, MAP_PRIVATE, s.fd, 0))) {
ast_log(LOG_WARNING, "mmap failed. Manager output was not processed\n");
} else {
buf[l] = '\0';
if (format == FORMAT_XML || format == FORMAT_HTML) {
xml_translate(&out, buf, params, format);
} else {
ast_str_append(&out, 0, "%s", buf);
}
munmap(buf, l + 1);
}
} else if (format == FORMAT_XML || format == FORMAT_HTML) {
xml_translate(&out, "", params, format);
}
fclose(s.f);
s.f = NULL;
s.fd = -1;
}
if (format == FORMAT_XML) {
ast_str_append(&out, 0, "</ajax-response>\n");
} else if (format == FORMAT_HTML) {
ast_str_append(&out, 0, "</table></body>\r\n");
}
ao2_lock(session);
/* Reset HTTP timeout. If we're not authenticated, keep it extremely short */
session->sessiontimeout = time(NULL) + ((session->authenticated || httptimeout < 5) ? httptimeout : 5);
if (session->needdestroy) {
if (session->inuse == 1) {
ast_debug(1, "Need destroy, doing it now!\n");
blastaway = 1;
} else {
ast_debug(1, "Need destroy, but can't do it yet!\n");
if (session->waiting_thread != AST_PTHREADT_NULL) {
pthread_kill(session->waiting_thread, SIGURG);
}
session->inuse--;
}
} else {
session->inuse--;
}
ao2_unlock(session);
ast_http_send(ser, method, 200, NULL, http_header, out, 0, 0);
http_header = out = NULL;
generic_callback_out:
ast_mutex_destroy(&s.lock);
/* Clear resource */
if (method == AST_HTTP_POST && params) {
ast_variables_destroy(params);
}
if (http_header) {
ast_free(http_header);
}
if (out) {
ast_free(out);
}
if (session && blastaway) {
session_destroy(session);
} else if (session && session->f) {
fclose(session->f);
session->f = NULL;
}
return 0;
}
static int auth_http_callback(struct ast_tcptls_session_instance *ser,
enum ast_http_method method,
enum output_format format,
struct sockaddr_in *remote_address, const char *uri,
struct ast_variable *get_params,
struct ast_variable *headers)
{
struct mansession_session *session = NULL;
struct mansession s = { NULL, };
struct ast_variable *v, *params = get_params;
char template[] = "/tmp/ast-http-XXXXXX"; /* template for temporary file */
struct ast_str *http_header = NULL, *out = NULL;
size_t result_size = 512;
struct message m = { 0 };
unsigned int x;
size_t hdrlen;
time_t time_now = time(NULL);
unsigned long nonce = 0, nc;
struct ast_http_digest d = { NULL, };
struct ast_manager_user *user = NULL;
int stale = 0;
char resp_hash[256]="";
/* Cache for user data */
char u_username[80];
int u_readperm;
int u_writeperm;
int u_writetimeout;
int u_displayconnects;
struct ast_sockaddr addr;
if (method != AST_HTTP_GET && method != AST_HTTP_HEAD && method != AST_HTTP_POST) {
ast_http_error(ser, 501, "Not Implemented", "Attempt to use unimplemented / unsupported method");
return -1;
}
/* Find "Authorization: " header */
for (v = headers; v; v = v->next) {
if (!strcasecmp(v->name, "Authorization")) {
break;
}
}
if (!v || ast_strlen_zero(v->value)) {
goto out_401; /* Authorization Header not present - send auth request */
}
/* Digest found - parse */
if (ast_string_field_init(&d, 128)) {
ast_http_error(ser, 500, "Server Error", "Internal Server Error (out of memory)\n");
return -1;
}
if (ast_parse_digest(v->value, &d, 0, 1)) {
/* Error in Digest - send new one */
nonce = 0;
goto out_401;
}
if (sscanf(d.nonce, "%30lx", &nonce) != 1) {
ast_log(LOG_WARNING, "Received incorrect nonce in Digest <%s>\n", d.nonce);
nonce = 0;
goto out_401;
}
AST_RWLIST_WRLOCK(&users);
user = get_manager_by_name_locked(d.username);
if(!user) {
AST_RWLIST_UNLOCK(&users);
ast_log(LOG_NOTICE, "%s tried to authenticate with nonexistent user '%s'\n", ast_inet_ntoa(remote_address->sin_addr), d.username);
nonce = 0;
goto out_401;
}
ast_sockaddr_from_sin(&addr, remote_address);
/* --- We have User for this auth, now check ACL */
if (user->ha && !ast_apply_ha(user->ha, &addr)) {
AST_RWLIST_UNLOCK(&users);
ast_log(LOG_NOTICE, "%s failed to pass IP ACL as '%s'\n", ast_inet_ntoa(remote_address->sin_addr), d.username);
ast_http_error(ser, 403, "Permission denied", "Permission denied\n");
return -1;
}
/* --- We have auth, so check it */
/* compute the expected response to compare with what we received */
{
char a2[256];
char a2_hash[256];
char resp[256];
/* XXX Now request method are hardcoded in A2 */
snprintf(a2, sizeof(a2), "%s:%s", ast_get_http_method(method), d.uri);
ast_md5_hash(a2_hash, a2);
if (d.qop) {
/* RFC 2617 */
snprintf(resp, sizeof(resp), "%s:%08lx:%s:%s:auth:%s", user->a1_hash, nonce, d.nc, d.cnonce, a2_hash);
} else {
/* RFC 2069 */
snprintf(resp, sizeof(resp), "%s:%08lx:%s", user->a1_hash, nonce, a2_hash);
}
ast_md5_hash(resp_hash, resp);
}
if (!d.nonce || strncasecmp(d.response, resp_hash, strlen(resp_hash))) {
/* Something was wrong, so give the client to try with a new challenge */
AST_RWLIST_UNLOCK(&users);
nonce = 0;
goto out_401;
}
/*
* User are pass Digest authentication.
* Now, cache the user data and unlock user list.
*/
ast_copy_string(u_username, user->username, sizeof(u_username));
u_readperm = user->readperm;
u_writeperm = user->writeperm;
u_displayconnects = user->displayconnects;
u_writetimeout = user->writetimeout;
AST_RWLIST_UNLOCK(&users);
if (!(session = find_session_by_nonce(d.username, nonce, &stale))) {
/*
* Create new session.
* While it is not in the list we don't need any locking
*/
if (!(session = build_mansession(*remote_address))) {
ast_http_error(ser, 500, "Server Error", "Internal Server Error (out of memory)\n");
return -1;
}
ao2_lock(session);
ast_copy_string(session->username, u_username, sizeof(session->username));
session->managerid = nonce;
session->last_ev = grab_last();
AST_LIST_HEAD_INIT_NOLOCK(&session->datastores);
session->readperm = u_readperm;
session->writeperm = u_writeperm;
session->writetimeout = u_writetimeout;
if (u_displayconnects) {
ast_verb(2, "HTTP Manager '%s' logged in from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
}
session->noncetime = session->sessionstart = time_now;
session->authenticated = 1;
} else if (stale) {
/*
* Session found, but nonce is stale.
*
* This could be because an old request (w/old nonce) arrived.
*
* This may be as the result of http proxy usage (separate delay or
* multipath) or in a situation where a page was refreshed too quickly
* (seen in Firefox).
*
* In this situation, we repeat the 401 auth with the current nonce
* value.
*/
nonce = session->managerid;
ao2_unlock(session);
stale = 1;
goto out_401;
} else {
sscanf(d.nc, "%30lx", &nc);
if (session->nc >= nc || ((time_now - session->noncetime) > 62) ) {
/*
* Nonce time expired (> 2 minutes) or something wrong with nonce
* counter.
*
* Create new nonce key and resend Digest auth request. Old nonce
* is saved for stale checking...
*/
session->nc = 0; /* Reset nonce counter */
session->oldnonce = session->managerid;
nonce = session->managerid = ast_random();
session->noncetime = time_now;
ao2_unlock(session);
stale = 1;
goto out_401;
} else {
session->nc = nc; /* All OK, save nonce counter */
}
}
/* Reset session timeout. */
session->sessiontimeout = time(NULL) + (httptimeout > 5 ? httptimeout : 5);
ao2_unlock(session);
ast_mutex_init(&s.lock);
s.session = session;
s.fd = mkstemp(template); /* create a temporary file for command output */
unlink(template);
if (s.fd <= -1) {
ast_http_error(ser, 500, "Server Error", "Internal Server Error (mkstemp failed)\n");
goto auth_callback_out;
}
s.f = fdopen(s.fd, "w+");
if (!s.f) {
ast_log(LOG_WARNING, "HTTP Manager, fdopen failed: %s!\n", strerror(errno));
ast_http_error(ser, 500, "Server Error", "Internal Server Error (fdopen failed)\n");
close(s.fd);
goto auth_callback_out;
}
if (method == AST_HTTP_POST) {
params = ast_http_get_post_vars(ser, headers);
}
for (x = 0, v = params; v && (x < AST_MAX_MANHEADERS); x++, v = v->next) {
hdrlen = strlen(v->name) + strlen(v->value) + 3;
m.headers[m.hdrcount] = alloca(hdrlen);
snprintf((char *) m.headers[m.hdrcount], hdrlen, "%s: %s", v->name, v->value);
ast_verb(4, "HTTP Manager add header %s\n", m.headers[m.hdrcount]);
m.hdrcount = x + 1;
}
if (process_message(&s, &m)) {
if (u_displayconnects) {
ast_verb(2, "HTTP Manager '%s' logged off from %s\n", session->username, ast_inet_ntoa(session->sin.sin_addr));
}
session->needdestroy = 1;
}
if (s.f) {
result_size = ftell(s.f); /* Calculate approx. size of result */
}
http_header = ast_str_create(80);
out = ast_str_create(result_size * 2 + 512);
if (http_header == NULL || out == NULL) {
ast_http_error(ser, 500, "Server Error", "Internal Server Error (ast_str_create() out of memory)\n");
goto auth_callback_out;
}
ast_str_append(&http_header, 0, "Content-type: text/%s\r\n", contenttype[format]);
if (format == FORMAT_XML) {
ast_str_append(&out, 0, "<ajax-response>\n");
} else if (format == FORMAT_HTML) {
ast_str_append(&out, 0,
"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\r\n"
"<html><head>\r\n"
"<title>Asterisk&trade; Manager Interface</title>\r\n"
"</head><body style=\"background-color: #ffffff;\">\r\n"
"<form method=\"POST\">\r\n"
"<table align=\"center\" style=\"background-color: #f1f1f1;\" width=\"500\">\r\n"
"<tr><th colspan=\"2\" style=\"background-color: #f1f1ff;\"><h1>Manager Tester</h1></th></tr>\r\n"
"<tr><th colspan=\"2\" style=\"background-color: #f1f1ff;\">Action: <input name=\"action\" /> Cmd: <input name=\"command\" /><br>"
"<input type=\"submit\" value=\"Send request\" /></th></tr>\r\n");
}
if (s.f != NULL) { /* have temporary output */
char *buf;
size_t l = ftell(s.f);
if (l) {
if ((buf = mmap(NULL, l, PROT_READ | PROT_WRITE, MAP_SHARED, s.fd, 0))) {
if (format == FORMAT_XML || format == FORMAT_HTML) {
xml_translate(&out, buf, params, format);
} else {
ast_str_append(&out, 0, "%s", buf);
}
munmap(buf, l);
}
} else if (format == FORMAT_XML || format == FORMAT_HTML) {
xml_translate(&out, "", params, format);
}
fclose(s.f);
s.f = NULL;
s.fd = -1;
}
if (format == FORMAT_XML) {
ast_str_append(&out, 0, "</ajax-response>\n");
} else if (format == FORMAT_HTML) {
ast_str_append(&out, 0, "</table></form></body></html>\r\n");
}
ast_http_send(ser, method, 200, NULL, http_header, out, 0, 0);
http_header = out = NULL;
auth_callback_out:
ast_mutex_destroy(&s.lock);
/* Clear resources and unlock manager session */
if (method == AST_HTTP_POST && params) {
ast_variables_destroy(params);
}
ast_free(http_header);
ast_free(out);
ao2_lock(session);
if (session->f) {
fclose(session->f);
}
session->f = NULL;
session->fd = -1;
ao2_unlock(session);
if (session->needdestroy) {
ast_debug(1, "Need destroy, doing it now!\n");
session_destroy(session);
}
ast_string_field_free_memory(&d);
return 0;
out_401:
if (!nonce) {
nonce = ast_random();
}
ast_http_auth(ser, global_realm, nonce, nonce, stale, NULL);
ast_string_field_free_memory(&d);
return 0;
}
static int manager_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
int retval;
struct sockaddr_in ser_remote_address_tmp;
ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
retval = generic_http_callback(ser, method, FORMAT_HTML, &ser_remote_address_tmp, uri, get_params, headers);
ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
return retval;
}
static int mxml_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
int retval;
struct sockaddr_in ser_remote_address_tmp;
ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
retval = generic_http_callback(ser, method, FORMAT_XML, &ser_remote_address_tmp, uri, get_params, headers);
ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
return retval;
}
static int rawman_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
int retval;
struct sockaddr_in ser_remote_address_tmp;
ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
retval = generic_http_callback(ser, method, FORMAT_RAW, &ser_remote_address_tmp, uri, get_params, headers);
ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
return retval;
}
static struct ast_http_uri rawmanuri = {
.description = "Raw HTTP Manager Event Interface",
.uri = "rawman",
.callback = rawman_http_callback,
.data = NULL,
.key = __FILE__,
};
static struct ast_http_uri manageruri = {
.description = "HTML Manager Event Interface",
.uri = "manager",
.callback = manager_http_callback,
.data = NULL,
.key = __FILE__,
};
static struct ast_http_uri managerxmluri = {
.description = "XML Manager Event Interface",
.uri = "mxml",
.callback = mxml_http_callback,
.data = NULL,
.key = __FILE__,
};
/* Callback with Digest authentication */
static int auth_manager_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
int retval;
struct sockaddr_in ser_remote_address_tmp;
ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
retval = auth_http_callback(ser, method, FORMAT_HTML, &ser_remote_address_tmp, uri, get_params, headers);
ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
return retval;
}
static int auth_mxml_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
int retval;
struct sockaddr_in ser_remote_address_tmp;
ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
retval = auth_http_callback(ser, method, FORMAT_XML, &ser_remote_address_tmp, uri, get_params, headers);
ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
return retval;
}
static int auth_rawman_http_callback(struct ast_tcptls_session_instance *ser, const struct ast_http_uri *urih, const char *uri, enum ast_http_method method, struct ast_variable *get_params, struct ast_variable *headers)
{
int retval;
struct sockaddr_in ser_remote_address_tmp;
ast_sockaddr_to_sin(&ser->remote_address, &ser_remote_address_tmp);
retval = auth_http_callback(ser, method, FORMAT_RAW, &ser_remote_address_tmp, uri, get_params, headers);
ast_sockaddr_from_sin(&ser->remote_address, &ser_remote_address_tmp);
return retval;
}
static struct ast_http_uri arawmanuri = {
.description = "Raw HTTP Manager Event Interface w/Digest authentication",
.uri = "arawman",
.has_subtree = 0,
.callback = auth_rawman_http_callback,
.data = NULL,
.key = __FILE__,
};
static struct ast_http_uri amanageruri = {
.description = "HTML Manager Event Interface w/Digest authentication",
.uri = "amanager",
.has_subtree = 0,
.callback = auth_manager_http_callback,
.data = NULL,
.key = __FILE__,
};
static struct ast_http_uri amanagerxmluri = {
.description = "XML Manager Event Interface w/Digest authentication",
.uri = "amxml",
.has_subtree = 0,
.callback = auth_mxml_http_callback,
.data = NULL,
.key = __FILE__,
};
static int registered = 0;
static int webregged = 0;
/*! \brief cleanup code called at each iteration of server_root,
* guaranteed to happen every 5 seconds at most
*/
static void purge_old_stuff(void *data)
{
purge_sessions(1);
purge_events();
}
static struct ast_tls_config ami_tls_cfg;
static struct ast_tcptls_session_args ami_desc = {
.accept_fd = -1,
.master = AST_PTHREADT_NULL,
.tls_cfg = NULL,
.poll_timeout = 5000, /* wake up every 5 seconds */
.periodic_fn = purge_old_stuff,
.name = "AMI server",
.accept_fn = ast_tcptls_server_root, /* thread doing the accept() */
.worker_fn = session_do, /* thread handling the session */
};
static struct ast_tcptls_session_args amis_desc = {
.accept_fd = -1,
.master = AST_PTHREADT_NULL,
.tls_cfg = &ami_tls_cfg,
.poll_timeout = -1, /* the other does the periodic cleanup */
.name = "AMI TLS server",
.accept_fn = ast_tcptls_server_root, /* thread doing the accept() */
.worker_fn = session_do, /* thread handling the session */
};
/*! \brief CLI command manager show settings */
static char *handle_manager_show_settings(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
switch (cmd) {
case CLI_INIT:
e->command = "manager show settings";
e->usage =
"Usage: manager show settings\n"
" Provides detailed list of the configuration of the Manager.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
#define FORMAT " %-25.25s %-15.15s\n"
#define FORMAT2 " %-25.25s %-15d\n"
if (a->argc != 3) {
return CLI_SHOWUSAGE;
}
ast_cli(a->fd, "\nGlobal Settings:\n");
ast_cli(a->fd, "----------------\n");
ast_cli(a->fd, FORMAT, "Manager (AMI):", AST_CLI_YESNO(manager_enabled));
ast_cli(a->fd, FORMAT, "Web Manager (AMI/HTTP):", AST_CLI_YESNO(webmanager_enabled));
ast_cli(a->fd, FORMAT, "TCP Bindaddress:", manager_enabled != 0 ? ast_sockaddr_stringify(&ami_desc.local_address) : "Disabled");
ast_cli(a->fd, FORMAT2, "HTTP Timeout (minutes):", httptimeout);
ast_cli(a->fd, FORMAT, "TLS Enable:", AST_CLI_YESNO(ami_tls_cfg.enabled));
ast_cli(a->fd, FORMAT, "TLS Bindaddress:", ami_tls_cfg.enabled != 0 ? ast_sockaddr_stringify(&amis_desc.local_address) : "Disabled");
ast_cli(a->fd, FORMAT, "TLS Certfile:", ami_tls_cfg.certfile);
ast_cli(a->fd, FORMAT, "TLS Privatekey:", ami_tls_cfg.pvtfile);
ast_cli(a->fd, FORMAT, "TLS Cipher:", ami_tls_cfg.cipher);
ast_cli(a->fd, FORMAT, "Allow multiple login:", AST_CLI_YESNO(allowmultiplelogin));
ast_cli(a->fd, FORMAT, "Display connects:", AST_CLI_YESNO(displayconnects));
ast_cli(a->fd, FORMAT, "Timestamp events:", AST_CLI_YESNO(timestampevents));
ast_cli(a->fd, FORMAT, "Channel vars:", S_OR(manager_channelvars, ""));
ast_cli(a->fd, FORMAT, "Debug:", AST_CLI_YESNO(manager_debug));
ast_cli(a->fd, FORMAT, "Block sockets:", AST_CLI_YESNO(block_sockets));
#undef FORMAT
#undef FORMAT2
return CLI_SUCCESS;
}
static struct ast_cli_entry cli_manager[] = {
AST_CLI_DEFINE(handle_showmancmd, "Show a manager interface command"),
AST_CLI_DEFINE(handle_showmancmds, "List manager interface commands"),
AST_CLI_DEFINE(handle_showmanconn, "List connected manager interface users"),
AST_CLI_DEFINE(handle_showmaneventq, "List manager interface queued events"),
AST_CLI_DEFINE(handle_showmanagers, "List configured manager users"),
AST_CLI_DEFINE(handle_showmanager, "Display information on a specific manager user"),
AST_CLI_DEFINE(handle_mandebug, "Show, enable, disable debugging of the manager code"),
AST_CLI_DEFINE(handle_manager_reload, "Reload manager configurations"),
AST_CLI_DEFINE(handle_manager_show_settings, "Show manager global settings"),
};
static int __init_manager(int reload)
{
struct ast_config *ucfg = NULL, *cfg = NULL;
const char *val;
char *cat = NULL;
int newhttptimeout = 60;
struct ast_manager_user *user = NULL;
struct ast_variable *var;
struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
char a1[256];
char a1_hash[256];
struct sockaddr_in ami_desc_local_address_tmp = { 0, };
struct sockaddr_in amis_desc_local_address_tmp = { 0, };
manager_enabled = 0;
if (!registered) {
/* Register default actions */
ast_manager_register_xml("Ping", 0, action_ping);
ast_manager_register_xml("Events", 0, action_events);
ast_manager_register_xml("Logoff", 0, action_logoff);
ast_manager_register_xml("Login", 0, action_login);
ast_manager_register_xml("Challenge", 0, action_challenge);
ast_manager_register_xml("Hangup", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, action_hangup);
ast_manager_register_xml("Status", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_status);
ast_manager_register_xml("Setvar", EVENT_FLAG_CALL, action_setvar);
ast_manager_register_xml("Getvar", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_getvar);
ast_manager_register_xml("GetConfig", EVENT_FLAG_SYSTEM | EVENT_FLAG_CONFIG, action_getconfig);
ast_manager_register_xml("GetConfigJSON", EVENT_FLAG_SYSTEM | EVENT_FLAG_CONFIG, action_getconfigjson);
ast_manager_register_xml("UpdateConfig", EVENT_FLAG_CONFIG, action_updateconfig);
ast_manager_register_xml("CreateConfig", EVENT_FLAG_CONFIG, action_createconfig);
ast_manager_register_xml("ListCategories", EVENT_FLAG_CONFIG, action_listcategories);
ast_manager_register_xml("Redirect", EVENT_FLAG_CALL, action_redirect);
ast_manager_register_xml("Atxfer", EVENT_FLAG_CALL, action_atxfer);
ast_manager_register_xml("Originate", EVENT_FLAG_ORIGINATE, action_originate);
ast_manager_register_xml("Command", EVENT_FLAG_COMMAND, action_command);
ast_manager_register_xml("ExtensionState", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_extensionstate);
ast_manager_register_xml("AbsoluteTimeout", EVENT_FLAG_SYSTEM | EVENT_FLAG_CALL, action_timeout);
ast_manager_register_xml("MailboxStatus", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_mailboxstatus);
ast_manager_register_xml("MailboxCount", EVENT_FLAG_CALL | EVENT_FLAG_REPORTING, action_mailboxcount);
ast_manager_register_xml("ListCommands", 0, action_listcommands);
ast_manager_register_xml("SendText", EVENT_FLAG_CALL, action_sendtext);
ast_manager_register_xml("UserEvent", EVENT_FLAG_USER, action_userevent);
ast_manager_register_xml("WaitEvent", 0, action_waitevent);
ast_manager_register_xml("CoreSettings", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_coresettings);
ast_manager_register_xml("CoreStatus", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_corestatus);
ast_manager_register_xml("Reload", EVENT_FLAG_CONFIG | EVENT_FLAG_SYSTEM, action_reload);
ast_manager_register_xml("CoreShowChannels", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, action_coreshowchannels);
ast_manager_register_xml("ModuleLoad", EVENT_FLAG_SYSTEM, manager_moduleload);
ast_manager_register_xml("ModuleCheck", EVENT_FLAG_SYSTEM, manager_modulecheck);
ast_manager_register_xml("AOCMessage", EVENT_FLAG_AOC, action_aocmessage);
ast_cli_register_multiple(cli_manager, ARRAY_LEN(cli_manager));
ast_extension_state_add(NULL, NULL, manager_state_cb, NULL);
registered = 1;
/* Append placeholder event so master_eventq never runs dry */
append_event("Event: Placeholder\r\n\r\n", 0);
}
if ((cfg = ast_config_load2("manager.conf", "manager", config_flags)) == CONFIG_STATUS_FILEUNCHANGED) {
return 0;
}
displayconnects = 1;
broken_events_action = 0;
authtimeout = 30;
authlimit = 50;
if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
ast_log(LOG_NOTICE, "Unable to open AMI configuration manager.conf, or configuration is invalid. Asterisk management interface (AMI) disabled.\n");
return 0;
}
/* default values */
ast_copy_string(global_realm, S_OR(ast_config_AST_SYSTEM_NAME, DEFAULT_REALM), sizeof(global_realm));
memset(&ami_desc.local_address, 0, sizeof(struct sockaddr_in));
memset(&amis_desc.local_address, 0, sizeof(amis_desc.local_address));
amis_desc_local_address_tmp.sin_port = htons(5039);
ami_desc_local_address_tmp.sin_port = htons(DEFAULT_MANAGER_PORT);
ami_tls_cfg.enabled = 0;
if (ami_tls_cfg.certfile) {
ast_free(ami_tls_cfg.certfile);
}
ami_tls_cfg.certfile = ast_strdup(AST_CERTFILE);
if (ami_tls_cfg.pvtfile) {
ast_free(ami_tls_cfg.pvtfile);
}
ami_tls_cfg.pvtfile = ast_strdup("");
if (ami_tls_cfg.cipher) {
ast_free(ami_tls_cfg.cipher);
}
ami_tls_cfg.cipher = ast_strdup("");
free_channelvars();
for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
val = var->value;
if (!ast_tls_read_conf(&ami_tls_cfg, &amis_desc, var->name, val)) {
continue;
}
if (!strcasecmp(var->name, "enabled")) {
manager_enabled = ast_true(val);
} else if (!strcasecmp(var->name, "block-sockets")) {
block_sockets = ast_true(val);
} else if (!strcasecmp(var->name, "webenabled")) {
webmanager_enabled = ast_true(val);
} else if (!strcasecmp(var->name, "port")) {
ami_desc_local_address_tmp.sin_port = htons(atoi(val));
} else if (!strcasecmp(var->name, "bindaddr")) {
if (!inet_aton(val, &ami_desc_local_address_tmp.sin_addr)) {
ast_log(LOG_WARNING, "Invalid address '%s' specified, using 0.0.0.0\n", val);
memset(&ami_desc_local_address_tmp.sin_addr, 0,
sizeof(ami_desc_local_address_tmp.sin_addr));
}
} else if (!strcasecmp(var->name, "brokeneventsaction")) {
broken_events_action = ast_true(val);
} else if (!strcasecmp(var->name, "allowmultiplelogin")) {
allowmultiplelogin = ast_true(val);
} else if (!strcasecmp(var->name, "displayconnects")) {
displayconnects = ast_true(val);
} else if (!strcasecmp(var->name, "timestampevents")) {
timestampevents = ast_true(val);
} else if (!strcasecmp(var->name, "debug")) {
manager_debug = ast_true(val);
} else if (!strcasecmp(var->name, "httptimeout")) {
newhttptimeout = atoi(val);
} else if (!strcasecmp(var->name, "authtimeout")) {
int timeout = atoi(var->value);
if (timeout < 1) {
ast_log(LOG_WARNING, "Invalid authtimeout value '%s', using default value\n", var->value);
} else {
authtimeout = timeout;
}
} else if (!strcasecmp(var->name, "authlimit")) {
int limit = atoi(var->value);
if (limit < 1) {
ast_log(LOG_WARNING, "Invalid authlimit value '%s', using default value\n", var->value);
} else {
authlimit = limit;
}
} else if (!strcasecmp(var->name, "channelvars")) {
struct manager_channel_variable *mcv;
char *remaining = ast_strdupa(val), *next;
ast_free(manager_channelvars);
manager_channelvars = ast_strdup(val);
AST_RWLIST_WRLOCK(&channelvars);
while ((next = strsep(&remaining, ",|"))) {
if (!(mcv = ast_calloc(1, sizeof(*mcv) + strlen(next) + 1))) {
break;
}
strcpy(mcv->name, next); /* SAFE */
if (strchr(next, '(')) {
mcv->isfunc = 1;
}
AST_RWLIST_INSERT_TAIL(&channelvars, mcv, entry);
}
AST_RWLIST_UNLOCK(&channelvars);
} else {
ast_log(LOG_NOTICE, "Invalid keyword <%s> = <%s> in manager.conf [general]\n",
var->name, val);
}
}
ami_desc_local_address_tmp.sin_family = AF_INET;
amis_desc_local_address_tmp.sin_family = AF_INET;
/* if the amis address has not been set, default is the same as non secure ami */
if (!amis_desc_local_address_tmp.sin_addr.s_addr) {
amis_desc_local_address_tmp.sin_addr =
ami_desc_local_address_tmp.sin_addr;
}
if (manager_enabled) {
ast_sockaddr_from_sin(&ami_desc.local_address, &ami_desc_local_address_tmp);
ast_sockaddr_from_sin(&amis_desc.local_address, &amis_desc_local_address_tmp);
}
AST_RWLIST_WRLOCK(&users);
/* First, get users from users.conf */
ucfg = ast_config_load2("users.conf", "manager", config_flags);
if (ucfg && (ucfg != CONFIG_STATUS_FILEUNCHANGED) && ucfg != CONFIG_STATUS_FILEINVALID) {
const char *hasmanager;
int genhasmanager = ast_true(ast_variable_retrieve(ucfg, "general", "hasmanager"));
while ((cat = ast_category_browse(ucfg, cat))) {
if (!strcasecmp(cat, "general")) {
continue;
}
hasmanager = ast_variable_retrieve(ucfg, cat, "hasmanager");
if ((!hasmanager && genhasmanager) || ast_true(hasmanager)) {
const char *user_secret = ast_variable_retrieve(ucfg, cat, "secret");
const char *user_read = ast_variable_retrieve(ucfg, cat, "read");
const char *user_write = ast_variable_retrieve(ucfg, cat, "write");
const char *user_displayconnects = ast_variable_retrieve(ucfg, cat, "displayconnects");
const char *user_writetimeout = ast_variable_retrieve(ucfg, cat, "writetimeout");
/* Look for an existing entry,
* if none found - create one and add it to the list
*/
if (!(user = get_manager_by_name_locked(cat))) {
if (!(user = ast_calloc(1, sizeof(*user)))) {
break;
}
/* Copy name over */
ast_copy_string(user->username, cat, sizeof(user->username));
/* Insert into list */
AST_LIST_INSERT_TAIL(&users, user, list);
user->ha = NULL;
user->keep = 1;
user->readperm = -1;
user->writeperm = -1;
/* Default displayconnect from [general] */
user->displayconnects = displayconnects;
user->writetimeout = 100;
}
if (!user_secret) {
user_secret = ast_variable_retrieve(ucfg, "general", "secret");
}
if (!user_read) {
user_read = ast_variable_retrieve(ucfg, "general", "read");
}
if (!user_write) {
user_write = ast_variable_retrieve(ucfg, "general", "write");
}
if (!user_displayconnects) {
user_displayconnects = ast_variable_retrieve(ucfg, "general", "displayconnects");
}
if (!user_writetimeout) {
user_writetimeout = ast_variable_retrieve(ucfg, "general", "writetimeout");
}
if (!ast_strlen_zero(user_secret)) {
if (user->secret) {
ast_free(user->secret);
}
user->secret = ast_strdup(user_secret);
}
if (user_read) {
user->readperm = get_perm(user_read);
}
if (user_write) {
user->writeperm = get_perm(user_write);
}
if (user_displayconnects) {
user->displayconnects = ast_true(user_displayconnects);
}
if (user_writetimeout) {
int value = atoi(user_writetimeout);
if (value < 100) {
ast_log(LOG_WARNING, "Invalid writetimeout value '%s' at users.conf line %d\n", var->value, var->lineno);
} else {
user->writetimeout = value;
}
}
}
}
ast_config_destroy(ucfg);
}
/* cat is NULL here in any case */
while ((cat = ast_category_browse(cfg, cat))) {
struct ast_ha *oldha;
if (!strcasecmp(cat, "general")) {
continue;
}
/* Look for an existing entry, if none found - create one and add it to the list */
if (!(user = get_manager_by_name_locked(cat))) {
if (!(user = ast_calloc(1, sizeof(*user)))) {
break;
}
/* Copy name over */
ast_copy_string(user->username, cat, sizeof(user->username));
user->ha = NULL;
user->readperm = 0;
user->writeperm = 0;
/* Default displayconnect from [general] */
user->displayconnects = displayconnects;
user->writetimeout = 100;
user->whitefilters = ao2_container_alloc(1, NULL, NULL);
user->blackfilters = ao2_container_alloc(1, NULL, NULL);
/* Insert into list */
AST_RWLIST_INSERT_TAIL(&users, user, list);
} else {
ao2_t_callback(user->whitefilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all white filters");
ao2_t_callback(user->blackfilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all black filters");
}
/* Make sure we keep this user and don't destroy it during cleanup */
user->keep = 1;
oldha = user->ha;
user->ha = NULL;
var = ast_variable_browse(cfg, cat);
for (; var; var = var->next) {
if (!strcasecmp(var->name, "secret")) {
if (user->secret) {
ast_free(user->secret);
}
user->secret = ast_strdup(var->value);
} else if (!strcasecmp(var->name, "deny") ||
!strcasecmp(var->name, "permit")) {
user->ha = ast_append_ha(var->name, var->value, user->ha, NULL);
} else if (!strcasecmp(var->name, "read") ) {
user->readperm = get_perm(var->value);
} else if (!strcasecmp(var->name, "write") ) {
user->writeperm = get_perm(var->value);
} else if (!strcasecmp(var->name, "displayconnects") ) {
user->displayconnects = ast_true(var->value);
} else if (!strcasecmp(var->name, "writetimeout")) {
int value = atoi(var->value);
if (value < 100) {
ast_log(LOG_WARNING, "Invalid writetimeout value '%s' at line %d\n", var->value, var->lineno);
} else {
user->writetimeout = value;
}
} else if (!strcasecmp(var->name, "eventfilter")) {
const char *value = var->value;
regex_t *new_filter = ao2_t_alloc(sizeof(*new_filter), event_filter_destructor, "event_filter allocation");
if (new_filter) {
int is_blackfilter;
if (value[0] == '!') {
is_blackfilter = 1;
value++;
} else {
is_blackfilter = 0;
}
if (regcomp(new_filter, value, 0)) {
ao2_t_ref(new_filter, -1, "failed to make regx");
} else {
if (is_blackfilter) {
ao2_t_link(user->blackfilters, new_filter, "link new filter into black user container");
} else {
ao2_t_link(user->whitefilters, new_filter, "link new filter into white user container");
}
}
}
} else {
ast_debug(1, "%s is an unknown option.\n", var->name);
}
}
ast_free_ha(oldha);
}
ast_config_destroy(cfg);
/* Perform cleanup - essentially prune out old users that no longer exist */
AST_RWLIST_TRAVERSE_SAFE_BEGIN(&users, user, list) {
if (user->keep) { /* valid record. clear flag for the next round */
user->keep = 0;
/* Calculate A1 for Digest auth */
snprintf(a1, sizeof(a1), "%s:%s:%s", user->username, global_realm, user->secret);
ast_md5_hash(a1_hash,a1);
if (user->a1_hash) {
ast_free(user->a1_hash);
}
user->a1_hash = ast_strdup(a1_hash);
continue;
}
/* We do not need to keep this user so take them out of the list */
AST_RWLIST_REMOVE_CURRENT(list);
ast_debug(4, "Pruning user '%s'\n", user->username);
/* Free their memory now */
if (user->a1_hash) {
ast_free(user->a1_hash);
}
if (user->secret) {
ast_free(user->secret);
}
ao2_t_callback(user->whitefilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all white filters");
ao2_t_callback(user->blackfilters, OBJ_UNLINK | OBJ_NODATA | OBJ_MULTIPLE, NULL, NULL, "unlink all black filters");
ao2_t_ref(user->whitefilters, -1, "decrement ref for white container, should be last one");
ao2_t_ref(user->blackfilters, -1, "decrement ref for black container, should be last one");
ast_free_ha(user->ha);
ast_free(user);
}
AST_RWLIST_TRAVERSE_SAFE_END;
AST_RWLIST_UNLOCK(&users);
if (!reload) {
/* If you have a NULL hash fn, you only need a single bucket */
sessions = ao2_container_alloc(1, NULL, mansession_cmp_fn);
}
if (webmanager_enabled && manager_enabled) {
if (!webregged) {
ast_http_uri_link(&rawmanuri);
ast_http_uri_link(&manageruri);
ast_http_uri_link(&managerxmluri);
ast_http_uri_link(&arawmanuri);
ast_http_uri_link(&amanageruri);
ast_http_uri_link(&amanagerxmluri);
webregged = 1;
}
} else {
if (webregged) {
ast_http_uri_unlink(&rawmanuri);
ast_http_uri_unlink(&manageruri);
ast_http_uri_unlink(&managerxmluri);
ast_http_uri_unlink(&arawmanuri);
ast_http_uri_unlink(&amanageruri);
ast_http_uri_unlink(&amanagerxmluri);
webregged = 0;
}
}
if (newhttptimeout > 0) {
httptimeout = newhttptimeout;
}
manager_event(EVENT_FLAG_SYSTEM, "Reload", "Module: Manager\r\nStatus: %s\r\nMessage: Manager reload Requested\r\n", manager_enabled ? "Enabled" : "Disabled");
ast_tcptls_server_start(&ami_desc);
if (ast_ssl_setup(amis_desc.tls_cfg)) {
ast_tcptls_server_start(&amis_desc);
}
return 0;
}
/* clear out every entry in the channelvar list */
static void free_channelvars(void)
{
struct manager_channel_variable *var;
AST_RWLIST_WRLOCK(&channelvars);
while ((var = AST_RWLIST_REMOVE_HEAD(&channelvars, entry))) {
ast_free(var);
}
AST_RWLIST_UNLOCK(&channelvars);
}
int init_manager(void)
{
return __init_manager(0);
}
int reload_manager(void)
{
return __init_manager(1);
}
int astman_datastore_add(struct mansession *s, struct ast_datastore *datastore)
{
AST_LIST_INSERT_HEAD(&s->session->datastores, datastore, entry);
return 0;
}
int astman_datastore_remove(struct mansession *s, struct ast_datastore *datastore)
{
return AST_LIST_REMOVE(&s->session->datastores, datastore, entry) ? 0 : -1;
}
struct ast_datastore *astman_datastore_find(struct mansession *s, const struct ast_datastore_info *info, const char *uid)
{
struct ast_datastore *datastore = NULL;
if (info == NULL)
return NULL;
AST_LIST_TRAVERSE_SAFE_BEGIN(&s->session->datastores, datastore, entry) {
if (datastore->info != info) {
continue;
}
if (uid == NULL) {
/* matched by type only */
break;
}
if ((datastore->uid != NULL) && !strcasecmp(uid, datastore->uid)) {
/* Matched by type AND uid */
break;
}
}
AST_LIST_TRAVERSE_SAFE_END;
return datastore;
}
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