1 |
adx |
30 |
/* |
2 |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
3 |
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* s_auth.c: Functions for querying a users ident. |
4 |
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* |
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* Copyright (C) 2002 by the past and present ircd coders, and others. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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knight |
31 |
* $Id$ |
23 |
adx |
30 |
*/ |
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25 |
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/* |
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* Changes: |
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* July 6, 1999 - Rewrote most of the code here. When a client connects |
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* to the server and passes initial socket validation checks, it |
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* is owned by this module (auth) which returns it to the rest of the |
30 |
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* server when dns and auth queries are finished. Until the client is |
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* released, the server does not know it exists and does not process |
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* any messages from it. |
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* --Bleep Thomas Helvey <tomh@inxpress.net> |
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*/ |
35 |
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#include "stdinc.h" |
36 |
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#include "list.h" |
37 |
michael |
1011 |
#include "ircd_defs.h" |
38 |
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#include "fdlist.h" |
39 |
adx |
30 |
#include "s_auth.h" |
40 |
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#include "s_conf.h" |
41 |
michael |
998 |
#include "balloc.h" |
42 |
adx |
30 |
#include "client.h" |
43 |
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#include "event.h" |
44 |
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#include "hook.h" |
45 |
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#include "irc_string.h" |
46 |
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#include "ircd.h" |
47 |
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#include "packet.h" |
48 |
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#include "irc_res.h" |
49 |
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#include "s_bsd.h" |
50 |
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#include "s_log.h" |
51 |
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#include "send.h" |
52 |
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53 |
michael |
1011 |
|
54 |
adx |
30 |
static const char *HeaderMessages[] = { |
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":%s NOTICE AUTH :*** Looking up your hostname...", |
56 |
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":%s NOTICE AUTH :*** Found your hostname", |
57 |
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":%s NOTICE AUTH :*** Couldn't look up your hostname", |
58 |
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":%s NOTICE AUTH :*** Checking Ident", |
59 |
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":%s NOTICE AUTH :*** Got Ident response", |
60 |
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":%s NOTICE AUTH :*** No Ident response", |
61 |
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":%s NOTICE AUTH :*** Your forward and reverse DNS do not match, ignoring hostname.", |
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":%s NOTICE AUTH :*** Your hostname is too long, ignoring hostname" |
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}; |
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enum { |
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REPORT_DO_DNS, |
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REPORT_FIN_DNS, |
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REPORT_FAIL_DNS, |
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REPORT_DO_ID, |
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REPORT_FIN_ID, |
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REPORT_FAIL_ID, |
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REPORT_IP_MISMATCH, |
73 |
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REPORT_HOST_TOOLONG |
74 |
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}; |
75 |
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76 |
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#define sendheader(c, i) sendto_one((c), HeaderMessages[(i)], me.name) |
77 |
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78 |
michael |
998 |
static BlockHeap *auth_heap = NULL; |
79 |
michael |
992 |
static dlink_list auth_doing_list = { NULL, NULL, 0 }; |
80 |
adx |
30 |
|
81 |
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static EVH timeout_auth_queries_event; |
82 |
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83 |
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static PF read_auth_reply; |
84 |
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static CNCB auth_connect_callback; |
85 |
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static CBFUNC start_auth; |
86 |
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struct Callback *auth_cb = NULL; |
88 |
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89 |
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/* init_auth() |
90 |
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* |
91 |
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* Initialise the auth code |
92 |
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*/ |
93 |
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void |
94 |
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init_auth(void) |
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{ |
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michael |
998 |
auth_heap = BlockHeapCreate("auth", sizeof(struct AuthRequest), AUTH_HEAP_SIZE); |
97 |
adx |
30 |
auth_cb = register_callback("start_auth", start_auth); |
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eventAddIsh("timeout_auth_queries_event", timeout_auth_queries_event, NULL, 1); |
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} |
100 |
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/* |
102 |
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* make_auth_request - allocate a new auth request |
103 |
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*/ |
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static struct AuthRequest * |
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make_auth_request(struct Client *client) |
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{ |
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michael |
998 |
struct AuthRequest *request = BlockHeapAlloc(auth_heap); |
108 |
adx |
30 |
|
109 |
michael |
992 |
client->localClient->auth = request; |
110 |
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request->client = client; |
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request->timeout = CurrentTime + CONNECTTIMEOUT; |
112 |
adx |
30 |
|
113 |
michael |
650 |
return request; |
114 |
adx |
30 |
} |
115 |
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116 |
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/* |
117 |
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* release_auth_client - release auth client from auth system |
118 |
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* this adds the client into the local client lists so it can be read by |
119 |
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* the main io processing loop |
120 |
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*/ |
121 |
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void |
122 |
michael |
992 |
release_auth_client(struct AuthRequest *auth) |
123 |
adx |
30 |
{ |
124 |
michael |
992 |
struct Client *client = auth->client; |
125 |
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126 |
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if (IsDoingAuth(auth) || IsDNSPending(auth)) |
127 |
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return; |
128 |
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129 |
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client->localClient->auth = NULL; |
130 |
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dlinkDelete(&auth->node, &auth_doing_list); |
131 |
michael |
998 |
BlockHeapFree(auth_heap, auth); |
132 |
michael |
992 |
|
133 |
adx |
30 |
/* |
134 |
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* When a client has auth'ed, we want to start reading what it sends |
135 |
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* us. This is what read_packet() does. |
136 |
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* -- adrian |
137 |
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*/ |
138 |
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client->localClient->allow_read = MAX_FLOOD; |
139 |
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comm_setflush(&client->localClient->fd, 1000, flood_recalc, client); |
140 |
michael |
650 |
|
141 |
michael |
992 |
dlinkAdd(client, &client->node, &global_client_list); |
142 |
michael |
650 |
|
143 |
michael |
1241 |
client->localClient->since = CurrentTime; |
144 |
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client->localClient->lasttime = CurrentTime; |
145 |
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client->localClient->firsttime = CurrentTime; |
146 |
michael |
664 |
client->flags |= FLAGS_FINISHED_AUTH; |
147 |
michael |
650 |
|
148 |
adx |
30 |
read_packet(&client->localClient->fd, client); |
149 |
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} |
150 |
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151 |
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/* |
152 |
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* auth_dns_callback - called when resolver query finishes |
153 |
michael |
998 |
* if the query resulted in a successful search, name will contain |
154 |
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* a non-NULL pointer, otherwise name will be NULL. |
155 |
adx |
30 |
* set the client on it's way to a connection completion, regardless |
156 |
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* of success of failure |
157 |
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*/ |
158 |
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static void |
159 |
michael |
992 |
auth_dns_callback(void *vptr, const struct irc_ssaddr *addr, const char *name) |
160 |
adx |
30 |
{ |
161 |
michael |
992 |
struct AuthRequest *auth = vptr; |
162 |
adx |
30 |
|
163 |
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ClearDNSPending(auth); |
164 |
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165 |
michael |
992 |
if (name != NULL) |
166 |
adx |
30 |
{ |
167 |
michael |
992 |
const struct sockaddr_in *v4, *v4dns; |
168 |
adx |
30 |
#ifdef IPV6 |
169 |
michael |
992 |
const struct sockaddr_in6 *v6, *v6dns; |
170 |
adx |
30 |
#endif |
171 |
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int good = 1; |
172 |
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173 |
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#ifdef IPV6 |
174 |
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if (auth->client->localClient->ip.ss.ss_family == AF_INET6) |
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{ |
176 |
michael |
992 |
v6 = (const struct sockaddr_in6 *)&auth->client->localClient->ip; |
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v6dns = (const struct sockaddr_in6 *)addr; |
178 |
adx |
30 |
if (memcmp(&v6->sin6_addr, &v6dns->sin6_addr, sizeof(struct in6_addr)) != 0) |
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{ |
180 |
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sendheader(auth->client, REPORT_IP_MISMATCH); |
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good = 0; |
182 |
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} |
183 |
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} |
184 |
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else |
185 |
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#endif |
186 |
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{ |
187 |
michael |
992 |
v4 = (const struct sockaddr_in *)&auth->client->localClient->ip; |
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v4dns = (const struct sockaddr_in *)addr; |
189 |
adx |
30 |
if(v4->sin_addr.s_addr != v4dns->sin_addr.s_addr) |
190 |
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{ |
191 |
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sendheader(auth->client, REPORT_IP_MISMATCH); |
192 |
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good = 0; |
193 |
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} |
194 |
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} |
195 |
michael |
992 |
if (good && strlen(name) <= HOSTLEN) |
196 |
adx |
30 |
{ |
197 |
michael |
992 |
strlcpy(auth->client->host, name, |
198 |
adx |
30 |
sizeof(auth->client->host)); |
199 |
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sendheader(auth->client, REPORT_FIN_DNS); |
200 |
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} |
201 |
michael |
992 |
else if (strlen(name) > HOSTLEN) |
202 |
adx |
30 |
sendheader(auth->client, REPORT_HOST_TOOLONG); |
203 |
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} |
204 |
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else |
205 |
michael |
992 |
sendheader(auth->client, REPORT_FAIL_DNS); |
206 |
adx |
30 |
|
207 |
michael |
992 |
release_auth_client(auth); |
208 |
adx |
30 |
} |
209 |
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210 |
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/* |
211 |
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* authsenderr - handle auth send errors |
212 |
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*/ |
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static void |
214 |
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auth_error(struct AuthRequest *auth) |
215 |
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{ |
216 |
michael |
896 |
++ServerStats.is_abad; |
217 |
adx |
30 |
|
218 |
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fd_close(&auth->fd); |
219 |
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220 |
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ClearAuth(auth); |
221 |
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222 |
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sendheader(auth->client, REPORT_FAIL_ID); |
223 |
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224 |
michael |
992 |
release_auth_client(auth); |
225 |
adx |
30 |
} |
226 |
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227 |
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/* |
228 |
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* start_auth_query - Flag the client to show that an attempt to |
229 |
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* contact the ident server on |
230 |
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* the client's host. The connect and subsequently the socket are all put |
231 |
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* into 'non-blocking' mode. Should the connect or any later phase of the |
232 |
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* identifing process fail, it is aborted and the user is given a username |
233 |
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* of "unknown". |
234 |
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*/ |
235 |
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static int |
236 |
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start_auth_query(struct AuthRequest *auth) |
237 |
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{ |
238 |
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struct irc_ssaddr localaddr; |
239 |
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socklen_t locallen = sizeof(struct irc_ssaddr); |
240 |
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#ifdef IPV6 |
241 |
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struct sockaddr_in6 *v6; |
242 |
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#else |
243 |
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struct sockaddr_in *v4; |
244 |
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#endif |
245 |
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246 |
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/* open a socket of the same type as the client socket */ |
247 |
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if (comm_open(&auth->fd, auth->client->localClient->ip.ss.ss_family, |
248 |
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SOCK_STREAM, 0, "ident") == -1) |
249 |
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{ |
250 |
|
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report_error(L_ALL, "creating auth stream socket %s:%s", |
251 |
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get_client_name(auth->client, SHOW_IP), errno); |
252 |
michael |
1247 |
ilog(LOG_TYPE_IRCD, "Unable to create auth socket for %s", |
253 |
adx |
30 |
get_client_name(auth->client, SHOW_IP)); |
254 |
michael |
896 |
++ServerStats.is_abad; |
255 |
adx |
30 |
return 0; |
256 |
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} |
257 |
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258 |
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sendheader(auth->client, REPORT_DO_ID); |
259 |
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|
260 |
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/* |
261 |
|
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* get the local address of the client and bind to that to |
262 |
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* make the auth request. This used to be done only for |
263 |
|
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* ifdef VIRTUAL_HOST, but needs to be done for all clients |
264 |
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* since the ident request must originate from that same address-- |
265 |
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* and machines with multiple IP addresses are common now |
266 |
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*/ |
267 |
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memset(&localaddr, 0, locallen); |
268 |
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getsockname(auth->client->localClient->fd.fd, (struct sockaddr*)&localaddr, |
269 |
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&locallen); |
270 |
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271 |
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#ifdef IPV6 |
272 |
|
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remove_ipv6_mapping(&localaddr); |
273 |
|
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v6 = (struct sockaddr_in6 *)&localaddr; |
274 |
|
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v6->sin6_port = htons(0); |
275 |
|
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#else |
276 |
|
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localaddr.ss_len = locallen; |
277 |
|
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v4 = (struct sockaddr_in *)&localaddr; |
278 |
|
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v4->sin_port = htons(0); |
279 |
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#endif |
280 |
|
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localaddr.ss_port = htons(0); |
281 |
|
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|
282 |
|
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comm_connect_tcp(&auth->fd, auth->client->sockhost, 113, |
283 |
|
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(struct sockaddr *)&localaddr, localaddr.ss_len, auth_connect_callback, |
284 |
|
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auth, auth->client->localClient->ip.ss.ss_family, |
285 |
|
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GlobalSetOptions.ident_timeout); |
286 |
|
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return 1; /* We suceed here for now */ |
287 |
|
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} |
288 |
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|
289 |
|
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/* |
290 |
|
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* GetValidIdent - parse ident query reply from identd server |
291 |
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* |
292 |
|
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* Inputs - pointer to ident buf |
293 |
|
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* Output - NULL if no valid ident found, otherwise pointer to name |
294 |
|
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* Side effects - |
295 |
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*/ |
296 |
|
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/* |
297 |
|
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* A few questions have been asked about this mess, obviously |
298 |
|
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* it should have been commented better the first time. |
299 |
|
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* The original idea was to remove all references to libc from ircd-hybrid. |
300 |
|
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* Instead of having to write a replacement for sscanf(), I did a |
301 |
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* rather gruseome parser here so we could remove this function call. |
302 |
|
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* Note, that I had also removed a few floating point printfs as well (though |
303 |
|
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* now we are still stuck with a few...) |
304 |
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* Remember, we have a replacement ircd sprintf, we have bleeps fputs lib |
305 |
|
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* it would have been nice to remove some unneeded code. |
306 |
|
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* Oh well. If we don't remove libc stuff totally, then it would be |
307 |
|
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* far cleaner to use sscanf() |
308 |
|
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* |
309 |
|
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* - Dianora |
310 |
|
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*/ |
311 |
|
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static char * |
312 |
|
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GetValidIdent(char *buf) |
313 |
|
|
{ |
314 |
|
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int remp = 0; |
315 |
|
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int locp = 0; |
316 |
|
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char* colon1Ptr; |
317 |
|
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char* colon2Ptr; |
318 |
|
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char* colon3Ptr; |
319 |
|
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char* commaPtr; |
320 |
|
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char* remotePortString; |
321 |
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|
322 |
|
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/* All this to get rid of a sscanf() fun. */ |
323 |
|
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remotePortString = buf; |
324 |
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|
325 |
|
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if ((colon1Ptr = strchr(remotePortString,':')) == NULL) |
326 |
|
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return 0; |
327 |
|
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*colon1Ptr = '\0'; |
328 |
|
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colon1Ptr++; |
329 |
|
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|
330 |
|
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if ((colon2Ptr = strchr(colon1Ptr,':')) == NULL) |
331 |
|
|
return 0; |
332 |
|
|
*colon2Ptr = '\0'; |
333 |
|
|
colon2Ptr++; |
334 |
|
|
|
335 |
|
|
if ((commaPtr = strchr(remotePortString, ',')) == NULL) |
336 |
|
|
return 0; |
337 |
|
|
*commaPtr = '\0'; |
338 |
|
|
commaPtr++; |
339 |
|
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|
340 |
|
|
if ((remp = atoi(remotePortString)) == 0) |
341 |
|
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return 0; |
342 |
|
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|
343 |
|
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if ((locp = atoi(commaPtr)) == 0) |
344 |
|
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return 0; |
345 |
|
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|
346 |
|
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/* look for USERID bordered by first pair of colons */ |
347 |
|
|
if (strstr(colon1Ptr, "USERID") == NULL) |
348 |
|
|
return 0; |
349 |
|
|
|
350 |
|
|
if ((colon3Ptr = strchr(colon2Ptr,':')) == NULL) |
351 |
|
|
return 0; |
352 |
|
|
*colon3Ptr = '\0'; |
353 |
|
|
colon3Ptr++; |
354 |
|
|
return (colon3Ptr); |
355 |
|
|
} |
356 |
|
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|
357 |
|
|
/* |
358 |
|
|
* start_auth |
359 |
|
|
* |
360 |
|
|
* inputs - pointer to client to auth |
361 |
|
|
* output - NONE |
362 |
|
|
* side effects - starts auth (identd) and dns queries for a client |
363 |
|
|
*/ |
364 |
|
|
static void * |
365 |
|
|
start_auth(va_list args) |
366 |
|
|
{ |
367 |
|
|
struct Client *client = va_arg(args, struct Client *); |
368 |
|
|
struct AuthRequest *auth = NULL; |
369 |
|
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|
370 |
|
|
assert(client != NULL); |
371 |
|
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|
372 |
|
|
auth = make_auth_request(client); |
373 |
michael |
1000 |
dlinkAdd(auth, &auth->node, &auth_doing_list); |
374 |
adx |
30 |
|
375 |
|
|
sendheader(client, REPORT_DO_DNS); |
376 |
|
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|
377 |
michael |
992 |
SetDNSPending(auth); |
378 |
|
|
|
379 |
adx |
30 |
if (ConfigFileEntry.disable_auth == 0) |
380 |
michael |
992 |
{ |
381 |
|
|
SetDoingAuth(auth); |
382 |
adx |
30 |
start_auth_query(auth); |
383 |
michael |
992 |
} |
384 |
adx |
30 |
|
385 |
michael |
992 |
gethost_byaddr(auth_dns_callback, auth, &client->localClient->ip); |
386 |
|
|
|
387 |
adx |
30 |
return NULL; |
388 |
|
|
} |
389 |
|
|
|
390 |
|
|
/* |
391 |
|
|
* timeout_auth_queries - timeout resolver and identd requests |
392 |
|
|
* allow clients through if requests failed |
393 |
|
|
*/ |
394 |
|
|
static void |
395 |
|
|
timeout_auth_queries_event(void *notused) |
396 |
|
|
{ |
397 |
michael |
992 |
dlink_node *ptr = NULL, *next_ptr = NULL; |
398 |
adx |
30 |
|
399 |
michael |
992 |
DLINK_FOREACH_SAFE(ptr, next_ptr, auth_doing_list.head) |
400 |
adx |
30 |
{ |
401 |
michael |
992 |
struct AuthRequest *auth = ptr->data; |
402 |
adx |
30 |
|
403 |
michael |
992 |
if (auth->timeout > CurrentTime) |
404 |
|
|
continue; |
405 |
adx |
30 |
|
406 |
michael |
992 |
if (IsDoingAuth(auth)) |
407 |
|
|
{ |
408 |
michael |
896 |
++ServerStats.is_abad; |
409 |
michael |
1000 |
fd_close(&auth->fd); |
410 |
michael |
998 |
ClearAuth(auth); |
411 |
adx |
30 |
sendheader(auth->client, REPORT_FAIL_ID); |
412 |
michael |
992 |
} |
413 |
adx |
30 |
|
414 |
michael |
992 |
if (IsDNSPending(auth)) |
415 |
|
|
{ |
416 |
|
|
delete_resolver_queries(auth); |
417 |
michael |
998 |
ClearDNSPending(auth); |
418 |
michael |
992 |
sendheader(auth->client, REPORT_FAIL_DNS); |
419 |
|
|
} |
420 |
adx |
30 |
|
421 |
michael |
1247 |
ilog(LOG_TYPE_IRCD, "DNS/AUTH timeout %s", |
422 |
michael |
992 |
get_client_name(auth->client, SHOW_IP)); |
423 |
|
|
release_auth_client(auth); |
424 |
adx |
30 |
} |
425 |
|
|
} |
426 |
|
|
|
427 |
|
|
/* |
428 |
|
|
* auth_connect_callback() - deal with the result of comm_connect_tcp() |
429 |
|
|
* |
430 |
|
|
* If the connection failed, we simply close the auth fd and report |
431 |
|
|
* a failure. If the connection suceeded send the ident server a query |
432 |
|
|
* giving "theirport , ourport". The write is only attempted *once* so |
433 |
|
|
* it is deemed to be a fail if the entire write doesn't write all the |
434 |
|
|
* data given. This shouldnt be a problem since the socket should have |
435 |
|
|
* a write buffer far greater than this message to store it in should |
436 |
|
|
* problems arise. -avalon |
437 |
|
|
*/ |
438 |
|
|
static void |
439 |
|
|
auth_connect_callback(fde_t *fd, int error, void *data) |
440 |
|
|
{ |
441 |
|
|
struct AuthRequest *auth = data; |
442 |
|
|
struct irc_ssaddr us; |
443 |
|
|
struct irc_ssaddr them; |
444 |
|
|
char authbuf[32]; |
445 |
|
|
socklen_t ulen = sizeof(struct irc_ssaddr); |
446 |
|
|
socklen_t tlen = sizeof(struct irc_ssaddr); |
447 |
michael |
1032 |
uint16_t uport, tport; |
448 |
adx |
30 |
#ifdef IPV6 |
449 |
|
|
struct sockaddr_in6 *v6; |
450 |
|
|
#else |
451 |
|
|
struct sockaddr_in *v4; |
452 |
|
|
#endif |
453 |
|
|
|
454 |
|
|
if (error != COMM_OK) |
455 |
|
|
{ |
456 |
|
|
auth_error(auth); |
457 |
|
|
return; |
458 |
|
|
} |
459 |
|
|
|
460 |
michael |
1013 |
if (getsockname(auth->client->localClient->fd.fd, (struct sockaddr *)&us, |
461 |
|
|
&ulen) || |
462 |
|
|
getpeername(auth->client->localClient->fd.fd, (struct sockaddr *)&them, |
463 |
|
|
&tlen)) |
464 |
adx |
30 |
{ |
465 |
michael |
1247 |
ilog(LOG_TYPE_IRCD, "auth get{sock,peer}name error for %s", |
466 |
adx |
30 |
get_client_name(auth->client, SHOW_IP)); |
467 |
|
|
auth_error(auth); |
468 |
|
|
return; |
469 |
|
|
} |
470 |
|
|
|
471 |
|
|
#ifdef IPV6 |
472 |
|
|
v6 = (struct sockaddr_in6 *)&us; |
473 |
|
|
uport = ntohs(v6->sin6_port); |
474 |
|
|
v6 = (struct sockaddr_in6 *)&them; |
475 |
|
|
tport = ntohs(v6->sin6_port); |
476 |
|
|
remove_ipv6_mapping(&us); |
477 |
|
|
remove_ipv6_mapping(&them); |
478 |
|
|
#else |
479 |
|
|
v4 = (struct sockaddr_in *)&us; |
480 |
|
|
uport = ntohs(v4->sin_port); |
481 |
|
|
v4 = (struct sockaddr_in *)&them; |
482 |
|
|
tport = ntohs(v4->sin_port); |
483 |
|
|
us.ss_len = ulen; |
484 |
|
|
them.ss_len = tlen; |
485 |
|
|
#endif |
486 |
|
|
|
487 |
michael |
1124 |
snprintf(authbuf, sizeof(authbuf), "%u , %u\r\n", tport, uport); |
488 |
adx |
30 |
|
489 |
|
|
if (send(fd->fd, authbuf, strlen(authbuf), 0) == -1) |
490 |
|
|
{ |
491 |
|
|
auth_error(auth); |
492 |
|
|
return; |
493 |
|
|
} |
494 |
michael |
696 |
|
495 |
adx |
30 |
read_auth_reply(&auth->fd, auth); |
496 |
|
|
} |
497 |
|
|
|
498 |
|
|
/* |
499 |
|
|
* read_auth_reply - read the reply (if any) from the ident server |
500 |
|
|
* we connected to. |
501 |
|
|
* We only give it one shot, if the reply isn't good the first time |
502 |
|
|
* fail the authentication entirely. --Bleep |
503 |
|
|
*/ |
504 |
|
|
#define AUTH_BUFSIZ 128 |
505 |
|
|
|
506 |
|
|
static void |
507 |
|
|
read_auth_reply(fde_t *fd, void *data) |
508 |
|
|
{ |
509 |
|
|
struct AuthRequest *auth = data; |
510 |
|
|
char *s = NULL; |
511 |
|
|
char *t = NULL; |
512 |
|
|
int len; |
513 |
|
|
int count; |
514 |
|
|
char buf[AUTH_BUFSIZ + 1]; /* buffer to read auth reply into */ |
515 |
|
|
|
516 |
nenolod |
397 |
/* Why? |
517 |
|
|
* Well, recv() on many POSIX systems is a per-packet operation, |
518 |
|
|
* and we do not necessarily want this, because on lowspec machines, |
519 |
|
|
* the ident response may come back fragmented, thus resulting in an |
520 |
|
|
* invalid ident response, even if the ident response was really OK. |
521 |
|
|
* |
522 |
|
|
* So PLEASE do not change this code to recv without being aware of the |
523 |
|
|
* consequences. |
524 |
|
|
* |
525 |
|
|
* --nenolod |
526 |
|
|
*/ |
527 |
|
|
len = read(fd->fd, buf, AUTH_BUFSIZ); |
528 |
michael |
1001 |
|
529 |
adx |
30 |
if (len < 0) |
530 |
|
|
{ |
531 |
|
|
if (ignoreErrno(errno)) |
532 |
|
|
comm_setselect(fd, COMM_SELECT_READ, read_auth_reply, auth, 0); |
533 |
|
|
else |
534 |
|
|
auth_error(auth); |
535 |
|
|
return; |
536 |
|
|
} |
537 |
|
|
|
538 |
|
|
if (len > 0) |
539 |
|
|
{ |
540 |
|
|
buf[len] = '\0'; |
541 |
|
|
|
542 |
|
|
if ((s = GetValidIdent(buf))) |
543 |
|
|
{ |
544 |
|
|
t = auth->client->username; |
545 |
|
|
|
546 |
|
|
while (*s == '~' || *s == '^') |
547 |
|
|
s++; |
548 |
|
|
|
549 |
|
|
for (count = USERLEN; *s && count; s++) |
550 |
|
|
{ |
551 |
|
|
if (*s == '@') |
552 |
|
|
break; |
553 |
|
|
if (!IsSpace(*s) && *s != ':' && *s != '[') |
554 |
|
|
{ |
555 |
|
|
*t++ = *s; |
556 |
|
|
count--; |
557 |
|
|
} |
558 |
|
|
} |
559 |
|
|
|
560 |
|
|
*t = '\0'; |
561 |
|
|
} |
562 |
|
|
} |
563 |
|
|
|
564 |
|
|
fd_close(fd); |
565 |
|
|
|
566 |
|
|
ClearAuth(auth); |
567 |
|
|
|
568 |
|
|
if (s == NULL) |
569 |
|
|
{ |
570 |
|
|
sendheader(auth->client, REPORT_FAIL_ID); |
571 |
michael |
896 |
++ServerStats.is_abad; |
572 |
adx |
30 |
} |
573 |
|
|
else |
574 |
|
|
{ |
575 |
|
|
sendheader(auth->client, REPORT_FIN_ID); |
576 |
michael |
896 |
++ServerStats.is_asuc; |
577 |
adx |
30 |
SetGotId(auth->client); |
578 |
|
|
} |
579 |
|
|
|
580 |
michael |
992 |
release_auth_client(auth); |
581 |
adx |
30 |
} |
582 |
|
|
|
583 |
|
|
/* |
584 |
|
|
* delete_auth() |
585 |
|
|
*/ |
586 |
|
|
void |
587 |
michael |
992 |
delete_auth(struct AuthRequest *auth) |
588 |
adx |
30 |
{ |
589 |
michael |
992 |
if (IsDNSPending(auth)) |
590 |
|
|
delete_resolver_queries(auth); |
591 |
adx |
30 |
|
592 |
michael |
1000 |
if (IsDoingAuth(auth)) |
593 |
|
|
fd_close(&auth->fd); |
594 |
|
|
|
595 |
michael |
992 |
dlinkDelete(&auth->node, &auth_doing_list); |
596 |
michael |
998 |
BlockHeapFree(auth_heap, auth); |
597 |
adx |
30 |
} |