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51ea0904 | 1 | /* |
77b1029d | 2 | * Copyright (C) 1996-2020 The Squid Software Foundation and contributors |
51ea0904 | 3 | * |
bbc27441 AJ |
4 | * Squid software is distributed under GPLv2+ license and includes |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
51ea0904 CT |
7 | */ |
8 | ||
bbc27441 AJ |
9 | /* DEBUG: section 49 SNMP Interface */ |
10 | ||
f7f3304a | 11 | #include "squid.h" |
51ea0904 CT |
12 | #include "base/TextException.h" |
13 | #include "ipc/TypedMsgHdr.h" | |
d6e3ad20 | 14 | #include "snmp/Session.h" |
5bed43d6 | 15 | #include "tools.h" |
51ea0904 | 16 | |
b56b37cf | 17 | Snmp::Session::Session() |
51ea0904 | 18 | { |
b56b37cf | 19 | memset(static_cast<snmp_session *>(this), 0, sizeof(snmp_session)); |
51ea0904 CT |
20 | } |
21 | ||
b56b37cf | 22 | Snmp::Session::Session(const Snmp::Session& session) : Session() |
51ea0904 | 23 | { |
b56b37cf | 24 | operator =(session); |
51ea0904 CT |
25 | } |
26 | ||
27 | Snmp::Session& | |
28 | Snmp::Session::operator = (const Session& session) | |
29 | { | |
b56b37cf AJ |
30 | if (&session == this) |
31 | return *this; | |
51ea0904 | 32 | |
b56b37cf AJ |
33 | reset(); |
34 | memcpy(static_cast<snmp_session *>(this), &session, sizeof(snmp_session)); | |
35 | // memcpy did a shallow copy, make sure we have our own allocations | |
36 | if (session.community) { | |
37 | community = (u_char*)xstrdup((char*)session.community); | |
38 | } | |
39 | if (session.peername) { | |
40 | peername = xstrdup(session.peername); | |
41 | } | |
42 | return *this; | |
51ea0904 CT |
43 | } |
44 | ||
45 | void | |
b56b37cf | 46 | Snmp::Session::reset() |
51ea0904 CT |
47 | { |
48 | if (community_len > 0) { | |
49 | Must(community != NULL); | |
50 | xfree(community); | |
51 | } | |
b56b37cf AJ |
52 | xfree(peername); |
53 | memset(static_cast<snmp_session *>(this), 0, sizeof(snmp_session)); | |
51ea0904 CT |
54 | } |
55 | ||
56 | void | |
57 | Snmp::Session::pack(Ipc::TypedMsgHdr& msg) const | |
58 | { | |
59 | msg.putPod(Version); | |
60 | msg.putInt(community_len); | |
61 | if (community_len > 0) { | |
62 | Must(community != NULL); | |
63 | msg.putFixed(community, community_len); | |
64 | } | |
65 | msg.putPod(retries); | |
66 | msg.putPod(timeout); | |
67 | int len = peername != NULL ? strlen(peername) : 0; | |
68 | msg.putInt(len); | |
69 | if (len > 0) | |
70 | msg.putFixed(peername, len); | |
71 | msg.putPod(remote_port); | |
72 | msg.putPod(local_port); | |
73 | } | |
74 | ||
75 | void | |
76 | Snmp::Session::unpack(const Ipc::TypedMsgHdr& msg) | |
77 | { | |
b56b37cf | 78 | reset(); |
51ea0904 CT |
79 | msg.getPod(Version); |
80 | community_len = msg.getInt(); | |
81 | if (community_len > 0) { | |
82 | community = static_cast<u_char*>(xmalloc(community_len + 1)); | |
83 | Must(community != NULL); | |
84 | msg.getFixed(community, community_len); | |
85 | community[community_len] = 0; | |
86 | } | |
87 | msg.getPod(retries); | |
88 | msg.getPod(timeout); | |
89 | int len = msg.getInt(); | |
90 | if (len > 0) { | |
91 | peername = static_cast<char*>(xmalloc(len + 1)); | |
92 | Must(peername != NULL); | |
93 | msg.getFixed(peername, len); | |
94 | peername[len] = 0; | |
95 | } | |
96 | msg.getPod(remote_port); | |
97 | msg.getPod(local_port); | |
98 | } | |
f53969cc | 99 |