modules/m_testline.c

   1 /* modules/m_testline.c
   2  *
   3  *  Copyright (C) 2004 Lee Hardy <lee@leeh.co.uk>
   4  *  Copyright (C) 2004-2005 ircd-ratbox development team
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met:
   9  *
  10  * 1.Redistributions of source code must retain the above copyright notice,
  11  *   this list of conditions and the following disclaimer.
  12  * 2.Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in the
  14  *   documentation and/or other materials provided with the distribution.
  15  * 3.The name of the author may not be used to endorse or promote products
  16  *   derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * $Id: m_testline.c 3303 2007-03-28 15:22:49Z jilles $
  31  */
  32 #include "stdinc.h"
  33 #include "send.h"
  34 #include "client.h"
  35 #include "modules.h"
  36 #include "msg.h"
  37 #include "hash.h"
  38 #include "hostmask.h"
  39 #include "numeric.h"
  40 #include "s_conf.h"
  41 #include "s_newconf.h"
  42 #include "reject.h"
  43
  44 static int mo_testline(struct Client *, struct Client *, int, const char **);
  45 static int mo_testgecos(struct Client *, struct Client *, int, const char **);
  46
  47 struct Message testline_msgtab = {
  48         "TESTLINE", 0, 0, 0, MFLG_SLOW,
  49         {mg_unreg, mg_ignore, mg_ignore, mg_ignore, mg_ignore, {mo_testline, 2}}
  50 };
  51 struct Message testgecos_msgtab = {
  52         "TESTGECOS", 0, 0, 0, MFLG_SLOW,
  53         {mg_unreg, mg_ignore, mg_ignore, mg_ignore, mg_ignore, {mo_testgecos, 2}}
  54 };
  55
  56 mapi_clist_av1 testline_clist[] = { &testline_msgtab, &testgecos_msgtab, NULL };
  57 DECLARE_MODULE_AV1(testline, NULL, NULL, testline_clist, NULL, NULL, "$Revision: 3303 $");
  58
  59 static int
  60 mo_testline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
  61 {
  62         struct ConfItem *aconf;
  63         struct ConfItem *resv_p;
  64         struct rb_sockaddr_storage ip;
  65         char user_trunc[USERLEN + 1], notildeuser_trunc[USERLEN + 1];
  66         const char *name = NULL;
  67         const char *username = NULL;
  68         const char *host = NULL;
  69         char *mask;
  70         char *p;
  71         int host_mask;
  72         int type;
  73         int duration;
  74
  75         mask = LOCAL_COPY(parv[1]);
  76
  77         if (IsChannelName(mask))
  78         {
  79                 resv_p = hash_find_resv(mask);
  80                 if (resv_p != NULL)
  81                 {
  82                         sendto_one(source_p, form_str(RPL_TESTLINE),
  83                                         me.name, source_p->name,
  84                                         resv_p->hold ? 'q' : 'Q',
  85                                         resv_p->hold ? (long) ((resv_p->hold - rb_current_time()) / 60) : 0L,
  86                                         resv_p->name, resv_p->passwd);
  87                         /* this is a false positive, so make sure it isn't counted in stats q
  88                          * --nenolod
  89                          */
  90                         resv_p->port--;
  91                 }
  92                 else
  93                         sendto_one(source_p, form_str(RPL_NOTESTLINE),
  94                                         me.name, source_p->name, parv[1]);
  95                 return 0;
  96         }
  97
  98         if((p = strchr(mask, '!')))
  99         {
 100                 *p++ = '\0';
 101                 name = mask;
 102                 mask = p;
 103
 104                 if(EmptyString(mask))
 105                         return 0;
 106         }
 107
 108         if((p = strchr(mask, '@')))
 109         {
 110                 *p++ = '\0';
 111                 username = mask;
 112                 host = p;
 113
 114                 if(EmptyString(host))
 115                         return 0;
 116         }
 117         else
 118                 host = mask;
 119
 120         /* parses as an IP, check for a dline */
 121         if((type = parse_netmask(host, (struct sockaddr *)&ip, &host_mask)) != HM_HOST)
 122         {
 123 #ifdef RB_IPV6
 124                 if(type == HM_IPV6)
 125                         aconf = find_dline((struct sockaddr *)&ip, AF_INET6);
 126                 else
 127 #endif
 128                         aconf = find_dline((struct sockaddr *)&ip, AF_INET);
 129
 130                 if(aconf && aconf->status & CONF_DLINE)
 131                 {
 132                         sendto_one(source_p, form_str(RPL_TESTLINE),
 133                                 me.name, source_p->name,
 134                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ? 'd' : 'D',
 135                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ?
 136                                  (long) ((aconf->hold - rb_current_time()) / 60) : 0L,
 137                                 aconf->host, aconf->passwd);
 138
 139                         return 0;
 140                 }
 141                 /* Otherwise, aconf is an exempt{} */
 142                 if(aconf == NULL &&
 143                                 (duration = is_reject_ip((struct sockaddr *)&ip)))
 144                         sendto_one(source_p, form_str(RPL_TESTLINE),
 145                                         me.name, source_p->name,
 146                                         '!',
 147                                         duration / 60,
 148                                         host, "Reject cache");
 149                 if(aconf == NULL &&
 150                                 (duration = is_throttle_ip((struct sockaddr *)&ip)))
 151                         sendto_one(source_p, form_str(RPL_TESTLINE),
 152                                         me.name, source_p->name,
 153                                         '!',
 154                                         duration / 60,
 155                                         host, "Throttled");
 156         }
 157
 158         if (username != NULL)
 159         {
 160                 rb_strlcpy(user_trunc, username, sizeof user_trunc);
 161                 rb_strlcpy(notildeuser_trunc, *username == '~' ? username + 1 : username, sizeof notildeuser_trunc);
 162         }
 163         else
 164         {
 165                 rb_strlcpy(user_trunc, "dummy", sizeof user_trunc);
 166                 rb_strlcpy(notildeuser_trunc, "dummy", sizeof notildeuser_trunc);
 167         }
 168         /* now look for a matching I/K/G */
 169         if((aconf = find_address_conf(host, NULL, user_trunc, notildeuser_trunc,
 170                                 (type != HM_HOST) ? (struct sockaddr *)&ip : NULL,
 171                                 (type != HM_HOST) ? (
 172 #ifdef RB_IPV6
 173                                  (type == HM_IPV6) ? AF_INET6 :
 174 #endif
 175                                   AF_INET) : 0, NULL)))
 176         {
 177                 static char buf[HOSTLEN+USERLEN+2];
 178
 179                 if(aconf->status & CONF_KILL)
 180                 {
 181                         rb_snprintf(buf, sizeof(buf), "%s@%s",
 182                                         aconf->user, aconf->host);
 183                         sendto_one(source_p, form_str(RPL_TESTLINE),
 184                                 me.name, source_p->name,
 185                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ? 'k' : 'K',
 186                                 (aconf->flags & CONF_FLAGS_TEMPORARY) ?
 187                                  (long) ((aconf->hold - rb_current_time()) / 60) : 0L,
 188                                 buf, aconf->passwd);
 189                         return 0;
 190                 }
 191         }
 192
 193         /* they asked us to check a nick, so hunt for resvs.. */
 194         if(name && (resv_p = find_nick_resv(name)))
 195         {
 196                 sendto_one(source_p, form_str(RPL_TESTLINE),
 197                                 me.name, source_p->name,
 198                                 resv_p->hold ? 'q' : 'Q',
 199                                 resv_p->hold ? (long) ((resv_p->hold - rb_current_time()) / 60) : 0L,
 200                                 resv_p->name, resv_p->passwd);
 201
 202                 /* this is a false positive, so make sure it isn't counted in stats q
 203                  * --nenolod
 204                  */
 205                 resv_p->port--;
 206                 return 0;
 207         }
 208
 209         /* no matching resv, we can print the I: if it exists */
 210         if(aconf && aconf->status & CONF_CLIENT)
 211         {
 212                 sendto_one_numeric(source_p, RPL_STATSILINE, form_str(RPL_STATSILINE),
 213                                 aconf->name, EmptyString(aconf->spasswd) ? "<NULL>" : aconf->spasswd,
 214                                 show_iline_prefix(source_p, aconf, aconf->user),
 215                                 aconf->host, aconf->port, aconf->className);
 216                 return 0;
 217         }
 218
 219         /* nothing matches.. */
 220         sendto_one(source_p, form_str(RPL_NOTESTLINE),
 221                         me.name, source_p->name, parv[1]);
 222         return 0;
 223 }
 224
 225 static int
 226 mo_testgecos(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 227 {
 228         struct ConfItem *aconf;
 229
 230         if(!(aconf = find_xline(parv[1], 0)))
 231         {
 232                 sendto_one(source_p, form_str(RPL_NOTESTLINE),
 233                                 me.name, source_p->name, parv[1]);
 234                 return 0;
 235         }
 236
 237         sendto_one(source_p, form_str(RPL_TESTLINE),
 238                         me.name, source_p->name,
 239                         aconf->hold ? 'x' : 'X',
 240                         aconf->hold ? (long) ((aconf->hold - rb_current_time()) / 60) : 0L,
 241                         aconf->name, aconf->passwd);
 242         return 0;
 243 }