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51ea0904 | 1 | /* |
5b74111a | 2 | * Copyright (C) 1996-2018 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 | |
51ea0904 CT |
17 | Snmp::Session::Session() |
18 | { | |
19 | clear(); | |
20 | } | |
21 | ||
22 | Snmp::Session::Session(const Session& session) | |
23 | { | |
24 | assign(session); | |
25 | } | |
26 | ||
27 | Snmp::Session::~Session() | |
28 | { | |
29 | free(); | |
30 | } | |
31 | ||
32 | Snmp::Session& | |
33 | Snmp::Session::operator = (const Session& session) | |
34 | { | |
35 | free(); | |
36 | assign(session); | |
37 | return *this; | |
38 | } | |
39 | ||
40 | void | |
41 | Snmp::Session::clear() | |
42 | { | |
e297be13 | 43 | memset(this, 0, sizeof(*this)); |
51ea0904 CT |
44 | } |
45 | ||
46 | void | |
47 | Snmp::Session::free() | |
48 | { | |
49 | if (community_len > 0) { | |
50 | Must(community != NULL); | |
51 | xfree(community); | |
52 | } | |
53 | if (peername != NULL) | |
54 | xfree(peername); | |
55 | clear(); | |
56 | } | |
57 | ||
58 | void | |
59 | Snmp::Session::assign(const Session& session) | |
60 | { | |
61 | memcpy(this, &session, sizeof(*this)); | |
62 | if (session.community != NULL) { | |
63 | community = (u_char*)xstrdup((char*)session.community); | |
64 | Must(community != NULL); | |
65 | } | |
66 | if (session.peername != NULL) { | |
67 | peername = xstrdup(session.peername); | |
68 | Must(peername != NULL); | |
69 | } | |
70 | } | |
71 | ||
72 | void | |
73 | Snmp::Session::pack(Ipc::TypedMsgHdr& msg) const | |
74 | { | |
75 | msg.putPod(Version); | |
76 | msg.putInt(community_len); | |
77 | if (community_len > 0) { | |
78 | Must(community != NULL); | |
79 | msg.putFixed(community, community_len); | |
80 | } | |
81 | msg.putPod(retries); | |
82 | msg.putPod(timeout); | |
83 | int len = peername != NULL ? strlen(peername) : 0; | |
84 | msg.putInt(len); | |
85 | if (len > 0) | |
86 | msg.putFixed(peername, len); | |
87 | msg.putPod(remote_port); | |
88 | msg.putPod(local_port); | |
89 | } | |
90 | ||
91 | void | |
92 | Snmp::Session::unpack(const Ipc::TypedMsgHdr& msg) | |
93 | { | |
94 | free(); | |
95 | msg.getPod(Version); | |
96 | community_len = msg.getInt(); | |
97 | if (community_len > 0) { | |
98 | community = static_cast<u_char*>(xmalloc(community_len + 1)); | |
99 | Must(community != NULL); | |
100 | msg.getFixed(community, community_len); | |
101 | community[community_len] = 0; | |
102 | } | |
103 | msg.getPod(retries); | |
104 | msg.getPod(timeout); | |
105 | int len = msg.getInt(); | |
106 | if (len > 0) { | |
107 | peername = static_cast<char*>(xmalloc(len + 1)); | |
108 | Must(peername != NULL); | |
109 | msg.getFixed(peername, len); | |
110 | peername[len] = 0; | |
111 | } | |
112 | msg.getPod(remote_port); | |
113 | msg.getPod(local_port); | |
114 | } | |
f53969cc | 115 |