<?xml version="1.0" encoding="iso-8859-1" ?>
<!DOCTYPE erlref SYSTEM "erlref.dtd">
<erlref>
<header>
<copyright>
<year>2004</year><year>2011</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
The contents of this file are subject to the Erlang Public License,
Version 1.1, (the "License"); you may not use this file except in
compliance with the License. You should have received a copy of the
Erlang Public License along with this software. If not, it can be
retrieved online at http://www.erlang.org/.
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and limitations
under the License.
</legalnotice>
<title>snmpm</title>
<prepared></prepared>
<responsible></responsible>
<docno></docno>
<approved></approved>
<checked></checked>
<date></date>
<rev></rev>
<file>snmpm.xml</file>
</header>
<module>snmpm</module>
<modulesummary>Interface functions to the SNMP toolkit manager</modulesummary>
<description>
<p>The module <c>snmpm</c> contains interface functions to the
SNMP manager. </p>
</description>
<section>
<title>Common Data Types</title>
<p>The following data types are used in the functions below:</p>
<code type="none"><![CDATA[
oid() = [byte()] - The oid() type is used to represent an ASN.1 OBJECT IDENTIFIER
snmp_reply() = {error_status(), error_index(), varbinds()}
error_status() = noError | atom()
error_index() = integer()
varbinds() = [varbind()]
atl_type() = read | write | read_write
target_name() = string() - Is a unique *non-empty* string
vars_and_vals() = [var_and_val()]
var_and_val() = {oid(), value_type(), value()} | {oid(), value()}
value_type() = o ('OBJECT IDENTIFIER') |
i ('INTEGER') |
u ('Unsigned32') |
g ('Unsigned32') |
s ('OCTET SRING') |
b ('BITS') |
ip ('IpAddress') |
op ('Opaque') |
c32 ('Counter32') |
c64 ('Counter64') |
tt ('TimeTicks')
value() = term()
community() = string()
sec_model() = any | v1 | v2c | usm
sec_name() = string()
sec_level() = noAuthNoPriv | authNoPriv | authPriv
]]></code>
<marker id="monitor"></marker>
</section>
<funcs>
<func>
<name>monitor() -> Ref</name>
<fsummary>Monitor the snmp manager</fsummary>
<type>
<v>Ref = reference()</v>
</type>
<desc>
<p>Monitor the SNMP manager. In case of a crash, the calling
(monitoring) process will get a 'DOWN' message (see the erlang
module for more info). </p>
<marker id="demonitor"></marker>
</desc>
</func>
<func>
<name>demonitor(Ref) -> void()</name>
<fsummary>Turn off monitoring of the snmp manager</fsummary>
<type>
<v>Ref = reference()</v>
</type>
<desc>
<p>Turn off monitoring of the SNMP manager. </p>
<marker id="notify_started"></marker>
</desc>
</func>
<func>
<name>notify_started(Timeout) -> Pid</name>
<fsummary>Request to be notified when manager started</fsummary>
<type>
<v>Timeout = integer()</v>
<v>Pid = pid()</v>
</type>
<desc>
<p>Request a notification (message) when the SNMP manager has
started. </p>
<p>The <c>Timeout</c> is the time the request is valid. The
value has to be greater then zero. </p>
<p>The <c>Pid</c> is the process handling the supervision of the
SNMP manager start. When the manager has started a completion
message will be sent to the client from this process:
<c>{snmpm_started, Pid}</c>. If the SNMP manager was not started
in time, a timeout message will be sent to the client:
<c>{snmpm_start_timeout, Pid}</c>. </p>
<p>A client application that is dependent on the SNMP manager
will use this function in order to be notified of when the
manager has started. There are two situations when this
is useful:</p>
<list type="bulleted">
<item>
<p>During the start of a system, when a client application
<em>could</em> start prior to the SNMP manager but is dependent
upon it, and therefor has to wait for it to start.</p>
</item>
<item>
<p>When the SNMP manager has crashed, the dependent client
application has to wait for the SNMP manager to be restarted
before it can <em>reconnect</em>.</p>
</item>
</list>
<p>The function returns the pid() of a handler process, that does
the supervision on behalf of the client application. Note that the
client application is linked to this handler. </p>
<p>This function is used in conjunction with the monitor function.</p>
<marker id="cancel_notify_started"></marker>
</desc>
</func>
<func>
<name>cancel_notify_started(Pid) -> void()</name>
<fsummary>Cancel request to be notified when manager started</fsummary>
<type>
<v>Pid = pid()</v>
</type>
<desc>
<p>Cancel a previous request to be notified of SNMP manager start.</p>
<marker id="register_user"></marker>
</desc>
</func>
<func>
<name>register_user(Id, Module, Data) -> ok | {error, Reason}</name>
<name>register_user(Id, Module, Data, DefaultAgentConfig) -> ok | {error, Reason}</name>
<fsummary>Register a user of the manager</fsummary>
<type>
<v>Id = term()</v>
<v>Module = snmpm_user()</v>
<v>Data = term()</v>
<v>DefaultAgentConfig = [default_agent_config()]</v>
<v>default_agent_config() = {Item, Val}</v>
<v>Item = community | timeout | max_message_size | version | sec_model | sec_name | sec_level</v>
<v>Val = term()</v>
<v>Reason = term()</v>
<v>snmpm_user() = Module implementing the snmpm_user behaviour</v>
</type>
<desc>
<p>Register the manager entity (=user) responsible for specific
agent(s). </p>
<p><c>Module</c> is the callback module (snmpm_user behaviour) which
will be called whenever something happens (detected
agent, incoming reply or incoming trap/notification).
Note that this could have already been done as a
consequence of the node config. (see users.conf).</p>
<p>The argument <c>DefaultAgentConfig</c> is used as default values when
this user register agents.</p>
<p>The type of <c>Val</c> depends on <c>Item</c>: </p>
<code type="none"><![CDATA[
community = string()
timeout = integer() | snmp_timer()
max_message_size = integer()
version = v1 | v2 | v3
sec_model = any | v1 | v2c | usm
sec_name = string()
sec_level = noAuthNoPriv | authNoPriv | authPriv
]]></code>
<marker id="register_user_monitor"></marker>
</desc>
</func>
<func>
<name>register_user_monitor(Id, Module, Data) -> ok | {error, Reason}</name>
<name>register_user_monitor(Id, Module, Data, DefaultAgentConfig) -> ok | {error, Reason}</name>
<fsummary>Register a monitored user of the manager</fsummary>
<type>
<v>Id = term()</v>
<v>Module = snmpm_user()</v>
<v>DefaultAgentConfig = [default_agent_config()]</v>
<v>default_agent_config() = {Item, Val}</v>
<v>Item = community | timeout | max_message_size | version | sec_model | sec_name | sec_level</v>
<v>Val = term()</v>
<v>Data = term()</v>
<v>Reason = term()</v>
<v>snmpm_user() = Module implementing the snmpm_user behaviour</v>
</type>
<desc>
<p>Register the monitored manager entity (=user) responsible
for specific agent(s). </p>
<p>The process performing the registration will be monitored.
Which means that if that process should die, all agents
registered by that user process will be unregistered. All
outstanding requests will be canceled. </p>
<p><c>Module</c> is the callback module (snmpm_user behaviour) which
will be called whenever something happens (detected
agent, incoming reply or incoming trap/notification).
Note that this could have already been done as a
consequence of the node config. (see users.conf).</p>
<p>The argument <c>DefaultAgentConfig</c> is used as default values when
this user register agents.</p>
<p>The type of <c>Val</c> depends on <c>Item</c>: </p>
<code type="none"><![CDATA[
community = string()
timeout = integer() | snmp_timer()
max_message_size = integer()
version = v1 | v2 | v3
sec_model = any | v1 | v2c | usm
sec_name = string()
sec_level = noAuthNoPriv | authNoPriv | authPriv
]]></code>
<marker id="unregister_user"></marker>
</desc>
</func>
<func>
<name>unregister_user(Id) -> ok | {error, Reason}</name>
<fsummary>Unregister the user</fsummary>
<type>
<v>Id = term()</v>
</type>
<desc>
<p>Unregister the user.</p>
<marker id="which_users"></marker>
</desc>
</func>
<func>
<name>which_users() -> Users</name>
<fsummary>Get a list of all users</fsummary>
<type>
<v>Users = [UserId]</v>
<v>UserId = term()</v>
</type>
<desc>
<p>Get a list of the identities of all registered users.</p>
<marker id="register_agent"></marker>
</desc>
</func>
<func>
<name>register_agent(UserId, TargetName, Config) -> ok | {error, Reason}</name>
<fsummary>Register this agent</fsummary>
<type>
<v>UserId = term()</v>
<v>Addr = ip_address()</v>
<v>TargetName = target_name()</v>
<v>Config = [agent_config()]</v>
<v>agent_config() = {Item, Val}</v>
<v>Item = engine_id | address | port | community | timeout | max_message_size | version | sec_model | sec_name | sec_level</v>
<v>Val = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Explicitly instruct the manager to handle this agent, with
<c>UserId</c> as the responsible user. </p>
<p>Called to instruct the manager that this agent
shall be handled. This function is used when
the user knows in advance which agents the
manager shall handle.
Note that there is an alternate way to do the same thing:
Add the agent to the manager config files (see
<seealso marker="snmp_manager_config_files#agents">agents.conf</seealso>).</p>
<p><c>TargetName</c> is a non-empty string,
uniquely identifying the agent. </p>
<p>The type of <c>Val</c> depends on <c>Item</c>: </p>
<code type="none"><![CDATA[
[mandatory] engine_id = string()
[mandatory] address = ip_address()
[optional] port = integer()
[optional] community = string()
[optional] timeout = integer() | snmp_timer()
[optional] max_message_size = integer()
[optional] version = v1 | v2 | v3
[optional] sec_model = any | v1 | v2c | usm
[optional] sec_name = string()
[optional] sec_level = noAuthNoPriv | authNoPriv | authPriv
]]></code>
<p>Note that if no <c>Port</c> is given, the default value is used.</p>
<marker id="unregister_agent"></marker>
</desc>
</func>
<func>
<name>unregister_agent(UserId, TargetName) -> ok | {error, Reason}</name>
<fsummary>Unregister the user</fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
</type>
<desc>
<p>Unregister the agent.</p>
<marker id="agent_info"></marker>
</desc>
</func>
<func>
<name>agent_info(TargetName, Item) -> {ok, Val} | {error, Reason}</name>
<fsummary>Retrieve agent config</fsummary>
<type>
<v>TargetName = target_name()</v>
<v>Item = atom()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Retrieve agent config.</p>
<marker id="update_agent_info"></marker>
</desc>
</func>
<func>
<name>update_agent_info(UserId, TargetName, Info) -> ok | {error, Reason}</name>
<name>update_agent_info(UserId, TargetName, Item, Val) -> ok | {error, Reason}</name>
<fsummary>Update agent config</fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>Info = [{item(), item_value()}]</v>
<v>Item = item()</v>
<v>item() = atom()</v>
<v>Val = item_value()</v>
<v>item_value() = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Update agent config. The function <c>update_agent_info/3</c>
should be used when several values needs to be updated atomically. </p>
<marker id="which_agents"></marker>
</desc>
</func>
<func>
<name>which_agents() -> Agents</name>
<name>which_agents(UserId) -> Agents</name>
<fsummary>List the registered agents</fsummary>
<type>
<v>UserId = term()</v>
<v>Agents = [TargetName]</v>
<v>TargetName = target_name()</v>
</type>
<desc>
<p>Get a list of all registered agents or all agents registered
by a specific user.</p>
<marker id="register_usm_user"></marker>
</desc>
</func>
<func>
<name>register_usm_user(EngineID, UserName, Conf) -> ok | {error, Reason}</name>
<fsummary>Register this USM user</fsummary>
<type>
<v>EngineID = string()</v>
<v>UserName = string()</v>
<v>Conf = [usm_config()]</v>
<v>usm_config() = {Item, Val}</v>
<v>Item = sec_name | auth | auth_key | priv | priv_key</v>
<v>Val = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Explicitly instruct the manager to handle this USM user.
Note that there is an alternate way to do the same thing:
Add the usm user to the manager config files (see
<seealso marker="snmp_manager_config_files#usm_user">usm.conf</seealso>).</p>
<p>The type of <c>Val</c> depends on <c>Item</c>: </p>
<code type="none"><![CDATA[
sec_name = string()
auth = usmNoAuthProtocol | usmHMACMD5AuthProtocol | usmHMACSHAAuthProtocoltimeout
auth_key = [integer()] (length 16 if auth = usmHMACMD5AuthProtocol,
length 20 if auth = usmHMACSHAAuthProtocol)
priv = usmNoPrivProtocol | usmDESPrivProtocol | usmAesCfb128Protocol
priv_key = [integer()] (length is 16 if priv = usmDESPrivProtocol | usmAesCfb128Protocol).
]]></code>
<marker id="unregister_usm_user"></marker>
</desc>
</func>
<func>
<name>unregister_usm_user(EngineID, UserName) -> ok | {error, Reason}</name>
<fsummary>Unregister this USM user</fsummary>
<type>
<v>EngineID = string()</v>
<v>UserName = string()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Unregister this USM user.</p>
<marker id="which_usm_users1"></marker>
</desc>
</func>
<func>
<name>usm_user_info(EngineID, UserName, Item) -> {ok, Val} | {error, Reason}</name>
<fsummary>Retrieve usm user config</fsummary>
<type>
<v>EngineID = string()</v>
<v>UsmName = string()</v>
<v>Item = sec_name | auth | auth_key | priv | priv_key</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Retrieve usm user config.</p>
<marker id="update_usm_user_info"></marker>
</desc>
</func>
<func>
<name>update_usm_user_info(EngineID, UserName, Item, Val) -> ok | {error, Reason}</name>
<fsummary>Update agent config</fsummary>
<type>
<v>EngineID = string()</v>
<v>UsmName = string()</v>
<v>Item = sec_name | auth | auth_key | priv | priv_key</v>
<v>Val = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Update usm user config.</p>
<marker id="which_usm_users"></marker>
</desc>
</func>
<func>
<name>which_usm_users() -> UsmUsers</name>
<fsummary>List all the registered usm users</fsummary>
<type>
<v>UsmUsers = [{EngineID,UserName}]</v>
<v>EngineID = string()</v>
<v>UsmName = string()</v>
</type>
<desc>
<p>Get a list of all registered usm users.</p>
<marker id="which_usm_users2"></marker>
</desc>
</func>
<func>
<name>which_usm_users(EngineID) -> UsmUsers</name>
<fsummary>List the registered usm users</fsummary>
<type>
<v>UsmUsers = [UserName]</v>
<v>UserName = string()</v>
</type>
<desc>
<p>Get a list of all registered usm users with engine-id
<c>EngineID</c>.</p>
<marker id="sync_get2"></marker>
</desc>
</func>
<func>
<name>sync_get2(UserId, TargetName, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get2(UserId, TargetName, Oids, SendOpts) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>get-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>Oids = [oid()]</v>
<v>SendOpts = send_opts()</v>
<v>send_opts() = [send_opt()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, ActualReason} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
<v>ReqId = term()</v>
<v>ActualReason = term()</v>
<v>SecInfo = [sec_info()]</v>
<v>sec_info() = {sec_tag(), ExpectedValue, ReceivedValue}</v>
<v>sec_tag() = atom()</v>
<v>ExpectedValue = ReceivedValue = term()</v>
<v>SnmpInfo = term()</v>
</type>
<desc>
<p>Synchronous <c>get-request</c>. </p>
<p><c>Remaining</c> is the remaining time of the given (or default)
timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error.
<em>ActualReason</em> is the actual reason in this case. </p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a option (when using the built in
net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<p>For <c>SnmpInfo</c>, see the user callback function
<seealso marker="snmpm_user#handle_report">handle_report</seealso>.</p>
<marker id="sync_get"></marker>
</desc>
</func>
<func>
<name>sync_get(UserId, TargetName, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get(UserId, TargetName, ContextName, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get(UserId, TargetName, Oids, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get(UserId, TargetName, ContextName, Oids, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get(UserId, TargetName, ContextName, Oids, Timeout, ExtraInfo) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>get-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>ContextName = string()</v>
<v>Oids = [oid()]</v>
<v>Timeout = integer()</v>
<v>ExtraInfo = term()</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, R} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
<v>R = term()</v>
<v>SecInfo = [sec_info()]</v>
<v>sec_info() = {sec_tag(), ExpectedValue, ReceivedValue}</v>
<v>sec_tag() = atom()</v>
<v>ExpectedValue = ReceivedValue = term()</v>
<v>SnmpInfo = term()</v>
</type>
<desc>
<p>Synchronous <c>get-request</c>. </p>
<p><c>Remaining</c> is the remaining time of the given or
default timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error. <em>R</em>
is the actual reason in this case. </p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>For <c>SnmpInfo</c>, see the user callback function
<seealso marker="snmpm_user#handle_report">handle_report</seealso>.</p>
<marker id="async_get2"></marker>
</desc>
</func>
<func>
<name>async_get2(UserId, TargetName, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get2(UserId, TargetName, Oids, SendOpts) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>get-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>Oids = [oid()]</v>
<v>SendOpts = send_opts()</v>
<v>send_opts() = [send_opt()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>ReqId = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>get-request</c>.</p>
<p>The reply, if it arrives, will be delivered to the user
through a call to the snmpm_user callback function
<c>handle_pdu</c>.</p>
<p>The send option <c>timeout</c> specifies for how long the request is
valid (after which the manager is free to delete it).</p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a option (when using the built in
net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<marker id="async_get"></marker>
</desc>
</func>
<func>
<name>async_get(UserId, TargetName, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get(UserId, TargetName, ContextName, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get(UserId, TargetName, Oids, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get(UserId, TargetName, ContextName, Oids, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get(UserId, TargetName, ContextName, Oids, Expire, ExtraInfo) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>get-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>ContextName = string()</v>
<v>Oids = [oid()]</v>
<v>Expire = integer()</v>
<v>ExtraInfo = term()</v>
<v>ReqId = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>get-request</c>.</p>
<p>The reply, if it arrives, will be delivered to the user
through a call to the snmpm_user callback function
<c>handle_pdu</c>.</p>
<p>The <c>Expire</c> time indicates for how long the request is
valid (after which the manager is free to delete it).</p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<marker id="sync_get_next2"></marker>
</desc>
</func>
<func>
<name>sync_get_next2(UserId, TargetName, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_next2(UserId, TargetName, Oids, SendOpts) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>get-next-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>Oids = [oid()]</v>
<v>SendOpts = send_opts()</v>
<v>send_opts() = [send_opt()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, ActualReason} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
<v>ReqId = term()</v>
<v>ActualReason = term()</v>
<v>SecInfo = [sec_info()]</v>
<v>sec_info() = {sec_tag(), ExpectedValue, ReceivedValue}</v>
<v>sec_tag() = atom()</v>
<v>ExpectedValue = ReceivedValue = term()</v>
<v>SnmpInfo = term()</v>
</type>
<desc>
<p>Synchronous <c>get-next-request</c>. </p>
<p><c>Remaining</c> is the remaining time of the given (or default)
timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error.
<em>ActualReason</em> is the actual reason in this case. </p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a option (when using the built in
net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<p>For <c>SnmpInfo</c>, see the user callback function
<seealso marker="snmpm_user#handle_report">handle_report</seealso>.</p>
<marker id="sync_get_next"></marker>
</desc>
</func>
<func>
<name>sync_get_next(UserId, TargetName, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_next(UserId, TargetName, ContextName, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_next(UserId, TargetName, Oids, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_next(UserId, TargetName, ContextName, Oids, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_next(UserId, TargetName, ContextName, Oids, Timeout, ExtraInfo) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>get-next-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>ContextName = string()</v>
<v>Oids = [oid()]</v>
<v>Timeout = integer()</v>
<v>ExtraInfo = term()</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, R} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
<v>R = term()</v>
</type>
<desc>
<p>Synchronous <c>get-next-request</c>. </p>
<p><c>Remaining</c> time of the given or default timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error. <em>R</em>
is the actual reason in this case. </p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<marker id="async_get_next2"></marker>
</desc>
</func>
<func>
<name>async_get_next2(UserId, TargetName, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_next2(UserId, TargetName, Oids, SendOpts) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>get-next-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>Oids = [oid()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>ReqId = integer()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>get-next-request</c>. </p>
<p>The reply will be delivered to the user through a call
to the snmpm_user callback function <c>handle_pdu</c>.</p>
<p>The send option <c>timeout</c> specifies for how long the request is
valid (after which the manager is free to delete it).</p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a option (when using the built in
net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<marker id="async_get_next"></marker>
</desc>
</func>
<func>
<name>async_get_next(UserId, TargetName, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_next(UserId, TargetName, ContextName, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_next(UserId, TargetName, Oids, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_next(UserId, TargetName, ContextName, Oids, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_next(UserId, TargetName, ContextName, Oids, Expire, ExtraInfo) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>get-next-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>ContextName = string()</v>
<v>Oids = [oid()]</v>
<v>Expire = integer()</v>
<v>ExtraInfo = term()</v>
<v>ReqId = integer()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>get-next-request</c>. </p>
<p>The reply will be delivered to the user through a call
to the snmpm_user callback function <c>handle_pdu</c>.</p>
<p>The <c>Expire</c> time indicates for how long the request is
valid (after which the manager is free to delete it).</p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<marker id="sync_set2"></marker>
</desc>
</func>
<func>
<name>sync_set2(UserId, TargetName, VarsAndVals) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_set2(UserId, TargetName, VarsAndVals, SendOpts) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>set-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>VarsAndVals = vars_and_vals()</v>
<v>SendOpts = send_opts()</v>
<v>send_opts() = [send_opt()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, ActualReason} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
<v>ReqId = term()</v>
<v>ActualReason = term()</v>
<v>SecInfo = [sec_info()]</v>
<v>sec_info() = {sec_tag(), ExpectedValue, ReceivedValue}</v>
<v>sec_tag() = atom()</v>
<v>ExpectedValue = ReceivedValue = term()</v>
<v>SnmpInfo = term()</v>
</type>
<desc>
<p>Synchronous <c>set-request</c>. </p>
<p><c>Remaining</c> is the remaining time of the given (or default)
timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error.
<em>ActualReason</em> is the actual reason in this case. </p>
<p>When <em>var_and_val()</em> is <em>{oid(), value()}</em>, the
manager makes an educated guess based on the loaded mibs. </p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a option (when using the built in
net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<p>For <c>SnmpInfo</c>, see the user callback function
<seealso marker="snmpm_user#handle_report">handle_report</seealso>.</p>
<marker id="sync_set"></marker>
</desc>
</func>
<func>
<name>sync_set(UserId, TargetName, VarsAndVals) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_set(UserId, TargetName, ContextName, VarsAndVals) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_set(UserId, TargetName, VarsAndVals, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_set(UserId, TargetName, ContextName, VarsAndVals, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_set(UserId, TargetName, ContextName, VarsAndVals, Timeout, ExtraInfo) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>set-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>ContextName = string()</v>
<v>VarsAndVals = vars_and_vals()</v>
<v>Timeout = integer()</v>
<v>ExtraInfo = term()</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, ActualReason} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
<v>ActualReason = term()</v>
</type>
<desc>
<p>Synchronous <c>set-request</c>. </p>
<p><c>Remaining</c> time of the given or default timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error. <em>R</em>
is the actual reason in this case. </p>
<p>When <em>var_and_val()</em> is <em>{oid(), value()}</em>, the
manager makes an educated guess based on the loaded mibs. </p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<marker id="async_set2"></marker>
</desc>
</func>
<func>
<name>async_set2(UserId, TargetName, VarsAndVals) -> {ok, ReqId} | {error, Reason}</name>
<name>async_set2(UserId, TargetName, VarsAndVals, SendOpts) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>set-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>VarsAndVals = vars_and_vals()</v>
<v>SendOpts = send_opts()</v>
<v>send_opts() = [send_opt()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>ReqId = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>set-request</c>. </p>
<p>The reply will be delivered to the user through a call
to the snmpm_user callback function <c>handle_pdu</c>.</p>
<p>The send option <c>timeout</c> specifies for how long the request is
valid (after which the manager is free to delete it).</p>
<p>When <em>var_and_val()</em> is <em>{oid(), value()}</em>, the
manager makes an educated guess based on the loaded mibs. </p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a option (when using the built in
net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<marker id="async_set"></marker>
</desc>
</func>
<func>
<name>async_set(UserId, TargetName, VarsAndVals) -> {ok, ReqId} | {error, Reason}</name>
<name>async_set(UserId, TargetName, ContextName, VarsAndVals) -> {ok, ReqId} | {error, Reason}</name>
<name>async_set(UserId, TargetName, VarsAndVals, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_set(UserId, TargetName, ContextName, VarsAndVals, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_set(UserId, TargetName, ContextName, VarsAndVals, Expire, ExtraInfo) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>set-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>VarsAndVals = vars_and_vals()</v>
<v>Expire = integer()</v>
<v>ExtraInfo = term()</v>
<v>ReqId = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>set-request</c>. </p>
<p>The reply will be delivered to the user through a call
to the snmpm_user callback function <c>handle_pdu</c>.</p>
<p>The <c>Expire</c> time indicates for how long the request is
valid (after which the manager is free to delete it).</p>
<p>When <em>var_and_val()</em> is <em>{oid(), value()}</em>, the
manager makes an educated guess based on the loaded mibs. </p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<marker id="sync_get_bulk2"></marker>
</desc>
</func>
<func>
<name>sync_get_bulk2(UserId, TragetName, NonRep, MaxRep, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_bulk2(UserId, TragetName, NonRep, MaxRep, Oids, SendOpts) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>get-bulk-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>NonRep = integer()</v>
<v>MaxRep = integer()</v>
<v>Oids = [oid()]</v>
<v>SendOpts = send_opts()</v>
<v>send_opts() = [send_opt()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, ActualReason} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
<v>ReqId = term()</v>
<v>ActualReason = term()</v>
<v>SecInfo = [sec_info()]</v>
<v>sec_info() = {sec_tag(), ExpectedValue, ReceivedValue}</v>
<v>sec_tag() = atom()</v>
<v>ExpectedValue = ReceivedValue = term()</v>
<v>SnmpInfo = term()</v>
</type>
<desc>
<p>Synchronous <c>get-bulk-request</c> (See RFC1905).</p>
<p><c>Remaining</c> is the remaining time of the given (or default)
timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error.
<em>ActualReason</em> is the actual reason in this case. </p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a option (when using the built in
net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<p>For <c>SnmpInfo</c>, see the user callback function
<seealso marker="snmpm_user#handle_report">handle_report</seealso>.</p>
<marker id="sync_get_bulk"></marker>
</desc>
</func>
<func>
<name>sync_get_bulk(UserId, TragetName, NonRep, MaxRep, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_bulk(UserId, TragetName, NonRep, MaxRep, ContextName, Oids) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_bulk(UserId, TragetName, NonRep, MaxRep, Oids, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_bulk(UserId, TragetName, NonRep, MaxRep, ContextName, Oids, Timeout) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<name>sync_get_bulk(UserId, TragetName, NonRep, MaxRep, ContextName, Oids, Timeout, ExtraInfo) -> {ok, SnmpReply, Remaining} | {error, Reason}</name>
<fsummary>Synchronous <c>get-bulk-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>NonRep = integer()</v>
<v>MaxRep = integer()</v>
<v>ContextName = string()</v>
<v>Oids = [oid()]</v>
<v>Timeout = integer()</v>
<v>ExtraInfo = term()</v>
<v>SnmpReply = snmp_reply()</v>
<v>Remaining = integer()</v>
<v>Reason = {send_failed, ReqId, R} | {invalid_sec_info, SecInfo, SnmpInfo} | term()</v>
</type>
<desc>
<p>Synchronous <c>get-bulk-request</c> (See RFC1905).</p>
<p><c>Remaining</c> time of the given or default timeout time.</p>
<p>When <em>Reason</em> is <em>{send_failed, ...}</em> it means that
the net_if process failed to send the message. This could happen
because of any number of reasons, i.e. encoding error. <em>R</em>
is the actual reason in this case. </p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<marker id="async_get_bulk2"></marker>
</desc>
</func>
<func>
<name>async_get_bulk2(UserId, TargetName, NonRep, MaxRep, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_bulk2(UserId, TargetName, NonRep, MaxRep, Oids, SendOpts) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>get-bulk-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>NonRep = integer()</v>
<v>MaxRep = integer()</v>
<v>Oids = [oid()]</v>
<v>SendOpts = send_opts()</v>
<v>send_opts() = [send_opt()]</v>
<v>send_opt() = {context, string()} | {timeout, pos_integer()} | {extra, term()} | {community, community()} | {sec_model, sec_model()} | {sec_name, string()} | {sec_level, sec_level()} | {max_message_size, pos_integer()}</v>
<v>ReqId = integer()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>get-bulk-request</c> (See RFC1905).</p>
<p>The reply will be delivered to the user through a call
to the snmpm_user callback function <c>handle_pdu</c>.</p>
<p>The send option <c>timeout</c> specifies for how long the request is
valid (after which the manager is free to delete it).</p>
<p>The send option <c>extra</c> specifies an opaque data structure
passed on to the net-if process. The net-if process included in this
application makes no use of this info, so the only use for it
in such a configuration (when using the built in net-if) would
be tracing.</p>
<p>Some of the send options (<c>community</c>, <c>sec_model</c>,
<c>sec_name</c>, <c>sec_level</c> and <c>max_message_size</c>)
are <c>override options</c>. That is,
for <em>this</em> request, they override any configuration done
when the agent was registered. </p>
<marker id="async_get_bulk"></marker>
</desc>
</func>
<func>
<name>async_get_bulk(UserId, TargetName, NonRep, MaxRep, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_bulk(UserId, TargetName, NonRep, MaxRep, ContextName, Oids) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_bulk(UserId, TargetName, NonRep, MaxRep, Oids, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_bulk(UserId, TargetName, NonRep, MaxRep, ContextName, Oids, Expire) -> {ok, ReqId} | {error, Reason}</name>
<name>async_get_bulk(UserId, TargetName, NonRep, MaxRep, ContextName, Oids, Expire, ExtraInfo) -> {ok, ReqId} | {error, Reason}</name>
<fsummary>Asynchronous <c>get-bulk-request</c></fsummary>
<type>
<v>UserId = term()</v>
<v>TargetName = target_name()</v>
<v>NonRep = integer()</v>
<v>MaxRep = integer()</v>
<v>ContextName = string()</v>
<v>Oids = [oid()]</v>
<v>Expire = integer()</v>
<v>ExtraInfo = term()</v>
<v>ReqId = integer()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Asynchronous <c>get-bulk-request</c> (See RFC1905).</p>
<p>The reply will be delivered to the user through a call
to the snmpm_user callback function <c>handle_pdu</c>.</p>
<p>The <c>Expire</c> time indicates for how long the request is
valid (after which the manager is free to delete it).</p>
<p><c>ExtraInfo</c> is an opaque data structure passed on to
the net-if process. The net-if process included in this
application makes, with one exception, no use of this info,
so the only use for it in such a configuration (when using the
built in net-if) would be tracing. The one usage exception is:
<em>Any</em> tuple with <c>snmpm_extra_info_tag</c> as its first
element is reserved for internal use. </p>
<marker id="cancel_async_request"></marker>
</desc>
</func>
<func>
<name>cancel_async_request(UserId, ReqId) -> ok | {error, Reason}</name>
<fsummary>Cancel a asynchronous request</fsummary>
<type>
<v>UserId = term()</v>
<v>ReqId = term()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Cancel a previous asynchronous request.</p>
<marker id="log_to_txt"></marker>
</desc>
</func>
<func>
<name>log_to_txt(LogDir, Mibs)</name>
<name>log_to_txt(LogDir, Mibs, OutFile) -> ok | {error, Reason}</name>
<name>log_to_txt(LogDir, Mibs, OutFile, LogName) -> ok | {error, Reason}</name>
<name>log_to_txt(LogDir, Mibs, OutFile, LogName, LogFile) -> ok | {error, Reason}</name>
<name>log_to_txt(LogDir, Mibs, OutFile, LogName, LogFile, Start) -> ok | {error, Reason}</name>
<name>log_to_txt(LogDir, Mibs, OutFile, LogName, LogFile, Start, Stop) -> ok | {error, Reason}</name>
<fsummary>Convert an Audit Trail Log to text format</fsummary>
<type>
<v>LogDir = string()</v>
<v>Mibs = [MibName]</v>
<v>MibName = string()</v>
<v>OutFile = string()</v>
<v>LogName = string()</v>
<v>LogFile = string()</v>
<v>Start = Stop = null | datetime() | {local_time,datetime()} | {universal_time,datetime()} </v>
<v>Reason = disk_log_open_error() | file_open_error() | term()</v>
<v>disk_log_open_error() = {LogName, term()}</v>
<v>file_open_error() = {OutFile, term()}</v>
</type>
<desc>
<p>Converts an Audit Trail Log to a readable text file.
<c>OutFile</c> defaults to "./snmpm_log.txt".
<c>LogName</c> defaults to "snmpm_log".
<c>LogFile</c> defaults to "snmpm.log".
See <seealso marker="snmp#log_to_txt">snmp:log_to_txt</seealso>
for more info.</p>
<marker id="change_log_size"></marker>
</desc>
</func>
<func>
<name>change_log_size(NewSize) -> ok | {error, Reason}</name>
<fsummary>Change the size of the Audit Trail Log</fsummary>
<type>
<v>NewSize = {MaxBytes, MaxFiles}</v>
<v>MaxBytes = integer()</v>
<v>MaxFiles = integer()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Changes the log size of the Audit Trail Log. The application must
be configured to use the audit trail log function. Please refer to
disk_log(3) in Kernel Reference Manual for a description of how to
change the log size.
</p>
<p>The change is permanent, as long as the log is not deleted.
That means, the log size is remembered across reboots.</p>
<marker id="set_log_type"></marker>
</desc>
</func>
<func>
<name>set_log_type(NewType) -> {ok, OldType} | {error, Reason}</name>
<fsummary>Change the Audit Trail Log type</fsummary>
<type>
<v>NewType = OldType = atl_type()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Changes the run-time Audit Trail log type. </p>
<p>Note that this has no effect on the application configuration as
defined by configuration files, so a node restart will revert the
config to whatever is in those files. </p>
<p>This function is primarily useful in testing/debugging
scenarios. </p>
<marker id="load_mib"></marker>
</desc>
</func>
<func>
<name>load_mib(Mib) -> ok | {error, Reason}</name>
<fsummary>Load a MIB into the manager</fsummary>
<type>
<v>Mib = MibName</v>
<v>MibName = string()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Load a <c>Mib</c> into the manager. The <c>MibName</c> is the
name of the Mib, including the path to where the compiled mib is
found. For example,</p>
<code type="none">
Dir = code:priv_dir(my_app) ++ "/mibs/",
snmpm:load_mib(Dir ++ "MY-MIB").
</code>
<marker id="unload_mib"></marker>
</desc>
</func>
<func>
<name>unload_mib(Mib) -> ok | {error, Reason}</name>
<fsummary>Unload a MIB from the manager</fsummary>
<type>
<v>Mib = MibName</v>
<v>MibName = string()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Unload a <c>Mib</c> from the manager. The <c>MibName</c> is the
name of the Mib, including the path to where the compiled mib is
found. For example,</p>
<code type="none">
Dir = code:priv_dir(my_app) ++ "/mibs/",
snmpm:unload_mib(Dir ++ "MY-MIB").
</code>
<marker id="which_mibs"></marker>
</desc>
</func>
<func>
<name>which_mibs() -> Mibs</name>
<fsummary>Which mibs are loaded into the manager</fsummary>
<type>
<v>Mibs = [{MibName, MibFile}]</v>
<v>MibName = atom()</v>
<v>MibFile = string()</v>
</type>
<desc>
<p>Get a list of all the mib's loaded into the manager.</p>
<marker id="name_to_oid"></marker>
</desc>
</func>
<func>
<name>name_to_oid(Name) -> {ok, Oids} | {error, Reason}</name>
<fsummary>Get all the possible oid's for an alias-name</fsummary>
<type>
<v>Name = atom()</v>
<v>Oids = [oid()]</v>
</type>
<desc>
<p>Transform a alias-name to its oid.</p>
<p>Note that an alias-name is only unique within the mib, so
when loading several mib's into a manager, there might be
several instances of the same aliasname.</p>
<marker id="oid_to_name"></marker>
</desc>
</func>
<func>
<name>oid_to_name(Oid) -> {ok, Name} | {error, Reason}</name>
<fsummary>Get the alias-name of the oid </fsummary>
<type>
<v>Oid = oid()</v>
<v>Name = atom()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Transform a oid to its aliasname.</p>
<marker id="oid_to_type"></marker>
</desc>
</func>
<func>
<name>oid_to_type(Oid) -> {ok, Type} | {error, Reason}</name>
<fsummary>Get the type of the the oid</fsummary>
<type>
<v>Oid = oid()</v>
<v>Type = atom()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>Retreive the type (asn1 bertype) of an oid.</p>
<marker id="backup"></marker>
</desc>
</func>
<func>
<name>backup(BackupDir) -> ok | {error, Reason}</name>
<fsummary>Backup manager data</fsummary>
<type>
<v>BackupDir = string()</v>
</type>
<desc>
<p>Backup persistent data handled by the manager. </p>
<p>BackupDir cannot be identical to DbDir. </p>
<marker id="info"></marker>
</desc>
</func>
<func>
<name>info() -> [{Key, Value}]</name>
<fsummary>Return information about the manager</fsummary>
<type>
<v>Key = atom()</v>
<v>Value = term()</v>
</type>
<desc>
<p>Returns a list (a dictionary) containing information about
the manager. Information includes statistics counters,
miscellaneous info about each process (e.g. memory allocation),
and so on.</p>
<marker id="verbosity"></marker>
</desc>
</func>
<func>
<name>verbosity(Ref, Verbosity) -> void()</name>
<fsummary>Assign a new verbosity for the process</fsummary>
<type>
<v>Ref = server | config | net_if | note_store | all</v>
<v>Verbosity = verbosity()</v>
<v>verbosity() = silence | info | log | debug | trace </v>
</type>
<desc>
<p>Sets verbosity for the designated process. For the lowest
verbosity <c>silence</c>, nothing is printed. The higher the
verbosity, the more is printed.</p>
<marker id="format_reason"></marker>
</desc>
</func>
<func>
<name>format_reason(Reason) -> string()</name>
<name>format_reason(Prefix, Reason) -> string()</name>
<fsummary>Assign a new verbosity for the process</fsummary>
<type>
<v>Reason = term()</v>
<v>Prefix = integer() | string()</v>
</type>
<desc>
<p>This utility function is used to create a formatted
(pretty printable) string of the error reason received
from either:
</p>
<list type="bulleted">
<item>
<p>The <c>Reason</c> returned value if any of the
sync/async get/get-next/set/get-bulk
functions returns <c>{error, Reason}</c></p>
</item>
<item>
<p>The <c>Reason</c> parameter in the
<seealso marker="snmpm_user#handle_error">handle_error</seealso> user callback function.</p>
</item>
</list>
<p><c>Prefix</c> should either be an indention string
(e.g. a list of spaces) or a positive integer (which will be used
to create the indention string of that length).</p>
</desc>
</func>
</funcs>
</erlref>