1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2009 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "hashcomp.h"
bool OneOfMatches(const char* host, const char* ip, const char* hostlist);
/** Handle /OPER. These command handlers can be reloaded by the core,
* and handle basic RFC1459 commands. Commands within modules work
* the same way, however, they can be fully unloaded, where these
* may not.
*/
class CommandOper : public Command
{
public:
/** Constructor for oper.
*/
CommandOper ( Module* parent) : Command(parent,"OPER",2,2) { syntax = "<username> <password>"; }
/** Handle command.
* @param parameters The parameters to the comamnd
* @param pcnt The number of parameters passed to teh command
* @param user The user issuing the command
* @return A value from CmdResult to indicate command success or failure.
*/
CmdResult Handle(const std::vector<std::string>& parameters, User *user);
};
bool OneOfMatches(const char* host, const char* ip, const std::string& hostlist)
{
std::stringstream hl(hostlist);
std::string xhost;
while (hl >> xhost)
{
if (InspIRCd::Match(host, xhost, ascii_case_insensitive_map) || InspIRCd::MatchCIDR(ip, xhost, ascii_case_insensitive_map))
{
return true;
}
}
return false;
}
CmdResult CommandOper::Handle (const std::vector<std::string>& parameters, User *user)
{
char TheHost[MAXBUF];
char TheIP[MAXBUF];
std::string type;
bool found = false;
bool match_login = false;
bool match_pass = false;
bool match_hosts = false;
snprintf(TheHost,MAXBUF,"%s@%s",user->ident.c_str(),user->host.c_str());
snprintf(TheIP, MAXBUF,"%s@%s",user->ident.c_str(),user->GetIPString());
for (int i = 0;; i++)
{
ConfigTag* tag = ServerInstance->Config->ConfValue("oper", i);
if (!tag)
break;
if (tag->getString("name") != parameters[0])
continue;
match_login = true;
match_pass = !ServerInstance->PassCompare(user, tag->getString("password"), parameters[1], tag->getString("hash"));
match_hosts = OneOfMatches(TheHost,TheIP,tag->getString("host"));
if (match_pass && match_hosts)
{
type = tag->getString("type");
ConfigTag* typeTag = ServerInstance->Config->opertypes[type];
if (typeTag)
{
/* found this oper's opertype */
if (!ServerInstance->IsNick(type.c_str(), ServerInstance->Config->Limits.NickMax))
{
user->WriteNumeric(491, "%s :Invalid oper type (oper types must follow the same syntax as nicknames)",user->nick.c_str());
ServerInstance->SNO->WriteToSnoMask('o',"CONFIGURATION ERROR! Oper type '%s' contains invalid characters",type.c_str());
ServerInstance->Logs->Log("OPER",DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type erroneous.", user->nick.c_str(), user->ident.c_str(), user->host.c_str());
return CMD_FAILURE;
}
std::string host = typeTag->getString("host");
if (!host.empty())
user->ChangeDisplayedHost(host.c_str());
std::string opClass = typeTag->getString("class");
if (!opClass.empty())
{
user->SetClass(opClass);
user->CheckClass();
}
found = true;
}
}
break;
}
if (found)
{
/* correct oper credentials */
user->Oper(type, parameters[0]);
}
else
{
char broadcast[MAXBUF];
if (type.empty())
{
std::string fields;
if (!match_login)
fields.append("login ");
if (!match_pass)
fields.append("password ");
if (!match_hosts)
fields.append("hosts");
// tell them they suck, and lag them up to help prevent brute-force attacks
user->WriteNumeric(491, "%s :Invalid oper credentials",user->nick.c_str());
user->IncreasePenalty(10);
snprintf(broadcast, MAXBUF, "WARNING! Failed oper attempt by %s!%s@%s using login '%s': The following fields do not match: %s", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), parameters[0].c_str(), fields.c_str());
ServerInstance->SNO->WriteToSnoMask('o',std::string(broadcast));
ServerInstance->PI->SendSNONotice("o", std::string("OPER: ") + broadcast);
ServerInstance->Logs->Log("OPER",DEFAULT,"OPER: Failed oper attempt by %s!%s@%s using login '%s': The following fields did not match: %s", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), parameters[0].c_str(), fields.c_str());
return CMD_FAILURE;
}
else
{
user->WriteNumeric(491, "%s :Your oper block does not have a valid opertype associated with it",user->nick.c_str());
snprintf(broadcast, MAXBUF, "CONFIGURATION ERROR! Oper block '%s': missing OperType %s",parameters[0].c_str(),type.c_str());
ServerInstance->SNO->WriteToSnoMask('o', std::string(broadcast));
ServerInstance->Logs->Log("OPER",DEFAULT,"OPER: Failed oper attempt by %s!%s@%s using login '%s': credentials valid, but oper type nonexistent.", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), parameters[0].c_str());
return CMD_FAILURE;
}
}
return CMD_SUCCESS;
}
COMMAND_INIT(CommandOper)
|
