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-rw-r--r--lib/snmp/doc/src/notes.xml58
-rw-r--r--lib/snmp/doc/src/snmpa.xml24
-rw-r--r--lib/snmp/src/agent/snmpa_agent.erl11
-rw-r--r--lib/snmp/src/agent/snmpa_mib.erl14
-rw-r--r--lib/snmp/src/app/snmp.appup.src19
5 files changed, 111 insertions, 15 deletions
diff --git a/lib/snmp/doc/src/notes.xml b/lib/snmp/doc/src/notes.xml
index 9082868e39..2b0feb6682 100644
--- a/lib/snmp/doc/src/notes.xml
+++ b/lib/snmp/doc/src/notes.xml
@@ -33,6 +33,64 @@
</header>
<section>
+ <title>SNMP Development Toolkit 4.17.4</title>
+
+ <p>Version 4.17.4 supports code replacement in runtime from/to
+ version 4.17.3, 4.17.2, 4.17.1, 4.17, 4.16.2, 4.16.1 and 4.16.</p>
+
+ <section>
+ <title>Improvements and new features</title>
+ <p>-</p>
+
+ <!--
+ <list type="bulleted">
+ <item>
+ <p>[agent] DoS attack using GET-BULK with large value of
+ MaxRepetitions.
+ A preventive method has been implementing by simply
+ limit the number of varbinds that can be included in
+ a Get-BULK response message. This is specified by the
+ new config option,
+ <seealso marker="snmp_app#agent_gb_max_vbs">gb_max_vbs</seealso>.
+ </p>
+ <p>Own Id: OTP-9700</p>
+ </item>
+
+ </list>
+ -->
+
+ </section>
+
+ <section>
+ <title>Reported Fixed Bugs and Malfunctions</title>
+ <!--
+ <p>-</p>
+ -->
+
+ <list type="bulleted">
+ <item>
+ <p>[agent] Simultaneous
+ <seealso marker="snmpa#backup">snmpa:backup/1,2</seealso>
+ calls can interfere.
+ The master agent did not check if a backup was already in
+ progress when a backup request was accepted. </p>
+ <p>Own Id: OTP-9884</p>
+ <p>Aux Id: Seq 11995</p>
+ </item>
+
+ </list>
+
+ </section>
+
+ <section>
+ <title>Incompatibilities</title>
+ <p>-</p>
+ </section>
+
+ </section> <!-- 4.17.4 -->
+
+
+ <section>
<title>SNMP Development Toolkit 4.17.3</title>
<p>Version 4.17.3 supports code replacement in runtime from/to
diff --git a/lib/snmp/doc/src/snmpa.xml b/lib/snmp/doc/src/snmpa.xml
index 1be6abe6dd..3bc2063f4e 100644
--- a/lib/snmp/doc/src/snmpa.xml
+++ b/lib/snmp/doc/src/snmpa.xml
@@ -1,10 +1,10 @@
-<?xml version="1.0" encoding="latin1" ?>
+<?xml version="1.0" encoding="iso-8859-1" ?>
<!DOCTYPE erlref SYSTEM "erlref.dtd">
<erlref>
<header>
<copyright>
- <year>2004</year><year>2010</year>
+ <year>2004</year><year>2012</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -198,12 +198,18 @@ notification_delivery_info() = #snmpa_notification_delivery_info{}
<type>
<v>BackupDir = string()</v>
<v>Agent = pid() | atom()</v>
+ <v>Reason = backup_in_progress | term()</v>
</type>
<desc>
<p>Backup persistent/permanent data handled by the agent
(such as local-db, mib-data and vacm). </p>
<p>Data stored by mnesia is not handled. </p>
<p>BackupDir cannot be identical to DbDir. </p>
+ <p>Simultaneous backup calls are <em>not</em> allowed.
+ That is, two different processes cannot simultaneously
+ successfully call this function. One of them will be first,
+ and succeed. The second will fail with the error reason
+ <c>backup_in_progress</c>. </p>
<marker id="info"></marker>
</desc>
@@ -217,13 +223,13 @@ notification_delivery_info() = #snmpa_notification_delivery_info{}
</type>
<desc>
<p>Returns a list (a dictionary) containing information about
- the agent. Information includes loaded MIBs, registered
- sub-agents, some information about the memory allocation. </p>
- <p>As of version 4.4 the format of the info has been changed.
- To convert the info to the old format, call the
- <seealso marker="#old_info_format">old_info_format</seealso>
- function. </p>
-
+ the agent. Information includes loaded MIBs, registered
+ sub-agents, some information about the memory allocation. </p>
+ <p>As of version 4.4 the format of the info has been changed.
+ To convert the info to the old format, call the
+ <seealso marker="#old_info_format">old_info_format</seealso>
+ function. </p>
+
<marker id="old_info_format"></marker>
</desc>
</func>
diff --git a/lib/snmp/src/agent/snmpa_agent.erl b/lib/snmp/src/agent/snmpa_agent.erl
index 00fe9be098..e3178aacc6 100644
--- a/lib/snmp/src/agent/snmpa_agent.erl
+++ b/lib/snmp/src/agent/snmpa_agent.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
%%
%% 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
@@ -1190,7 +1190,8 @@ handle_call(info, _From, S) ->
handle_call(get_net_if, _From, S) ->
{reply, get(net_if), S};
-handle_call({backup, BackupDir}, From, S) ->
+%% Only accept a backup request if there is none already in progress
+handle_call({backup, BackupDir}, From, #state{backup = undefined} = S) ->
?vlog("backup: ~p", [BackupDir]),
Pid = self(),
V = get(verbosity),
@@ -1207,7 +1208,11 @@ handle_call({backup, BackupDir}, From, S) ->
end),
?vtrace("backup server: ~p", [BackupServer]),
{noreply, S#state{backup = {BackupServer, From}}};
-
+
+handle_call({backup, _BackupDir}, From, #state{backup = Backup} = S) ->
+ ?vinfo("backup already in progress: ~p", [Backup]),
+ {reply, {error, backup_in_progress}, S};
+
handle_call(dump_mibs, _From, S) ->
Reply = snmpa_mib:dump(get(mibserver)),
{reply, Reply, S};
diff --git a/lib/snmp/src/agent/snmpa_mib.erl b/lib/snmp/src/agent/snmpa_mib.erl
index ce90db18b3..574467d38f 100644
--- a/lib/snmp/src/agent/snmpa_mib.erl
+++ b/lib/snmp/src/agent/snmpa_mib.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2010. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
%%
%% 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
@@ -552,8 +552,12 @@ handle_call({dump, File}, _From, #state{data = Data} = State) ->
Reply = snmpa_mib_data:dump(Data, File),
{reply, Reply, State};
-handle_call({backup, BackupDir}, From, #state{data = Data} = State) ->
- ?vlog("backup to ~s",[BackupDir]),
+%% This check (that there is no backup already in progress) is also
+%% done in the master agent process, but just in case a user issues
+%% a backup call to this process directly, we add a similar check here.
+handle_call({backup, BackupDir}, From,
+ #state{backup = undefined, data = Data} = State) ->
+ ?vlog("backup to ~s", [BackupDir]),
Pid = self(),
V = get(verbosity),
case file:read_file_info(BackupDir) of
@@ -576,6 +580,10 @@ handle_call({backup, BackupDir}, From, #state{data = Data} = State) ->
{reply, Error, State}
end;
+handle_call({backup, _BackupDir}, From, #state{backup = Backup} = S) ->
+ ?vinfo("backup already in progress: ~p", [Backup]),
+ {reply, {error, backup_in_progress}, S};
+
handle_call(stop, _From, State) ->
?vlog("stop",[]),
{stop, normal, ok, State};
diff --git a/lib/snmp/src/app/snmp.appup.src b/lib/snmp/src/app/snmp.appup.src
index 4ac6daf579..6655935c5c 100644
--- a/lib/snmp/src/app/snmp.appup.src
+++ b/lib/snmp/src/app/snmp.appup.src
@@ -22,6 +22,12 @@
%% ----- U p g r a d e -------------------------------------------------------
[
+ {"4.17.3",
+ [
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
+ {update, snmpa_agent, soft, soft_purge, soft_purge, []}
+ ]
+ },
{"4.17.2",
[
{load_module, snmpa, soft_purge, soft_purge, []},
@@ -41,6 +47,7 @@
{load_module, snmpa_trap, soft_purge, soft_purge, []},
{load_module, snmpa_vacm, soft_purge, soft_purge, []},
{update, snmpa_supervisor, soft, soft_purge, soft_purge, []},
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
{update, snmpa_agent, soft, soft_purge, soft_purge, []},
{load_module, snmpm, soft_purge, soft_purge, [snmpm_server]},
{update, snmpm_server, soft, soft_purge, soft_purge, []}
@@ -57,6 +64,7 @@
{load_module, snmpm, soft_purge, soft_purge, [snmpm_server]},
{update, snmpm_server, soft, soft_purge, soft_purge, []},
{update, snmpa_supervisor, soft, soft_purge, soft_purge, []},
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
{update, snmpa_agent, soft, soft_purge, soft_purge, []}
]
},
@@ -72,6 +80,7 @@
{load_module, snmpa_mpd, soft_purge, soft_purge, [snmpa_usm]},
{load_module, snmpa_usm, soft_purge, soft_purge, []},
{update, snmpa_supervisor, soft, soft_purge, soft_purge, []},
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
{update, snmpa_agent, soft, soft_purge, soft_purge, []},
{load_module, snmpa_net_if, soft_purge, soft_purge, []},
@@ -135,6 +144,12 @@
%% ------D o w n g r a d e ---------------------------------------------------
[
+ {"4.17.3",
+ [
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
+ {update, snmpa_agent, soft, soft_purge, soft_purge, []}
+ ]
+ },
{"4.17.2",
[
{load_module, snmpa, soft_purge, soft_purge, []},
@@ -143,6 +158,7 @@
{load_module, snmpa_trap, soft_purge, soft_purge, []},
{load_module, snmpa_vacm, soft_purge, soft_purge, []},
{update, snmpa_supervisor, soft, soft_purge, soft_purge, []},
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
{update, snmpa_agent, soft, soft_purge, soft_purge, []}
]
},
@@ -154,6 +170,7 @@
{load_module, snmpa_trap, soft_purge, soft_purge, []},
{load_module, snmpa_vacm, soft_purge, soft_purge, []},
{update, snmpa_supervisor, soft, soft_purge, soft_purge, []},
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
{update, snmpa_agent, soft, soft_purge, soft_purge, []},
{load_module, snmpm, soft_purge, soft_purge, [snmpm_server]},
{update, snmpm_server, soft, soft_purge, soft_purge, []}
@@ -167,6 +184,7 @@
{load_module, snmpa_trap, soft_purge, soft_purge, []},
{load_module, snmpa_vacm, soft_purge, soft_purge, []},
{update, snmpa_supervisor, soft, soft_purge, soft_purge, []},
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
{update, snmpa_agent, soft, soft_purge, soft_purge, []},
{load_module, snmpa_net_if, soft_purge, soft_purge, []},
{load_module, snmpm, soft_purge, soft_purge, [snmpm_server]},
@@ -186,6 +204,7 @@
{load_module, snmpa_mpd, soft_purge, soft_purge, [snmpa_usm]},
{load_module, snmpa_usm, soft_purge, soft_purge, []},
{update, snmpa_supervisor, soft, soft_purge, soft_purge, []},
+ {update, snmpa_mib, soft, soft_purge, soft_purge, []},
{update, snmpa_agent, soft, soft_purge, soft_purge, []},
{load_module, snmpa_net_if, soft_purge, soft_purge, []},
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 12:44:29 +0000