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1.1.1.2 ! root 1: /* ! 2: Copyright (C) 1997-2001 Id Software, Inc. ! 3: ! 4: This program is free software; you can redistribute it and/or ! 5: modify it under the terms of the GNU General Public License ! 6: as published by the Free Software Foundation; either version 2 ! 7: of the License, or (at your option) any later version. ! 8: ! 9: This program is distributed in the hope that it will be useful, ! 10: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 11: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ! 12: ! 13: See the GNU General Public License for more details. ! 14: ! 15: You should have received a copy of the GNU General Public License ! 16: along with this program; if not, write to the Free Software ! 17: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ! 18: ! 19: */ 1.1 root 20: 21: #include "g_local.h" 22: 23: 24: void Svcmd_Test_f (void) 25: { 26: gi.cprintf (NULL, PRINT_HIGH, "Svcmd_Test_f()\n"); 27: } 28: 29: /* 1.1.1.2 ! root 30: ============================================================================== ! 31: ! 32: PACKET FILTERING ! 33: ! 34: ! 35: You can add or remove addresses from the filter list with: ! 36: ! 37: addip <ip> ! 38: removeip <ip> ! 39: ! 40: The ip address is specified in dot format, and any unspecified digits will match any value, so you can specify an entire class C network with "addip 192.246.40". ! 41: ! 42: Removeip will only remove an address specified exactly the same way. You cannot addip a subnet, then removeip a single host. ! 43: ! 44: listip ! 45: Prints the current list of filters. ! 46: ! 47: writeip ! 48: Dumps "addip <ip>" commands to listip.cfg so it can be execed at a later date. The filter lists are not saved and restored by default, because I beleive it would cause too much confusion. ! 49: ! 50: filterban <0 or 1> ! 51: ! 52: If 1 (the default), then ip addresses matching the current list will be prohibited from entering the game. This is the default setting. ! 53: ! 54: If 0, then only addresses matching the list will be allowed. This lets you easily set up a private game, or a game that only allows players from your local network. ! 55: ! 56: ! 57: ============================================================================== ! 58: */ ! 59: ! 60: typedef struct ! 61: { ! 62: unsigned mask; ! 63: unsigned compare; ! 64: } ipfilter_t; ! 65: ! 66: #define MAX_IPFILTERS 1024 ! 67: ! 68: ipfilter_t ipfilters[MAX_IPFILTERS]; ! 69: int numipfilters; ! 70: ! 71: /* ! 72: ================= ! 73: StringToFilter ! 74: ================= ! 75: */ ! 76: static qboolean StringToFilter (char *s, ipfilter_t *f) ! 77: { ! 78: char num[128]; ! 79: int i, j; ! 80: byte b[4]; ! 81: byte m[4]; ! 82: ! 83: for (i=0 ; i<4 ; i++) ! 84: { ! 85: b[i] = 0; ! 86: m[i] = 0; ! 87: } ! 88: ! 89: for (i=0 ; i<4 ; i++) ! 90: { ! 91: if (*s < '0' || *s > '9') ! 92: { ! 93: gi.cprintf(NULL, PRINT_HIGH, "Bad filter address: %s\n", s); ! 94: return false; ! 95: } ! 96: ! 97: j = 0; ! 98: while (*s >= '0' && *s <= '9') ! 99: { ! 100: num[j++] = *s++; ! 101: } ! 102: num[j] = 0; ! 103: b[i] = atoi(num); ! 104: if (b[i] != 0) ! 105: m[i] = 255; ! 106: ! 107: if (!*s) ! 108: break; ! 109: s++; ! 110: } ! 111: ! 112: f->mask = *(unsigned *)m; ! 113: f->compare = *(unsigned *)b; ! 114: ! 115: return true; ! 116: } ! 117: ! 118: /* ! 119: ================= ! 120: SV_FilterPacket ! 121: ================= ! 122: */ ! 123: qboolean SV_FilterPacket (char *from) ! 124: { ! 125: int i; ! 126: unsigned in; ! 127: byte m[4]; ! 128: char *p; ! 129: ! 130: i = 0; ! 131: p = from; ! 132: while (*p && i < 4) { ! 133: m[i] = 0; ! 134: while (*p >= '0' && *p <= '9') { ! 135: m[i] = m[i]*10 + (*p - '0'); ! 136: p++; ! 137: } ! 138: if (!*p || *p == ':') ! 139: break; ! 140: i++, p++; ! 141: } ! 142: ! 143: in = *(unsigned *)m; ! 144: ! 145: for (i=0 ; i<numipfilters ; i++) ! 146: if ( (in & ipfilters[i].mask) == ipfilters[i].compare) ! 147: return (int)filterban->value; ! 148: ! 149: return (int)!filterban->value; ! 150: } ! 151: ! 152: ! 153: /* ! 154: ================= ! 155: SV_AddIP_f ! 156: ================= ! 157: */ ! 158: void SVCmd_AddIP_f (void) ! 159: { ! 160: int i; ! 161: ! 162: if (gi.argc() < 3) { ! 163: gi.cprintf(NULL, PRINT_HIGH, "Usage: addip <ip-mask>\n"); ! 164: return; ! 165: } ! 166: ! 167: for (i=0 ; i<numipfilters ; i++) ! 168: if (ipfilters[i].compare == 0xffffffff) ! 169: break; // free spot ! 170: if (i == numipfilters) ! 171: { ! 172: if (numipfilters == MAX_IPFILTERS) ! 173: { ! 174: gi.cprintf (NULL, PRINT_HIGH, "IP filter list is full\n"); ! 175: return; ! 176: } ! 177: numipfilters++; ! 178: } ! 179: ! 180: if (!StringToFilter (gi.argv(2), &ipfilters[i])) ! 181: ipfilters[i].compare = 0xffffffff; ! 182: } ! 183: ! 184: /* ! 185: ================= ! 186: SV_RemoveIP_f ! 187: ================= ! 188: */ ! 189: void SVCmd_RemoveIP_f (void) ! 190: { ! 191: ipfilter_t f; ! 192: int i, j; ! 193: ! 194: if (gi.argc() < 3) { ! 195: gi.cprintf(NULL, PRINT_HIGH, "Usage: sv removeip <ip-mask>\n"); ! 196: return; ! 197: } ! 198: ! 199: if (!StringToFilter (gi.argv(2), &f)) ! 200: return; ! 201: ! 202: for (i=0 ; i<numipfilters ; i++) ! 203: if (ipfilters[i].mask == f.mask ! 204: && ipfilters[i].compare == f.compare) ! 205: { ! 206: for (j=i+1 ; j<numipfilters ; j++) ! 207: ipfilters[j-1] = ipfilters[j]; ! 208: numipfilters--; ! 209: gi.cprintf (NULL, PRINT_HIGH, "Removed.\n"); ! 210: return; ! 211: } ! 212: gi.cprintf (NULL, PRINT_HIGH, "Didn't find %s.\n", gi.argv(2)); ! 213: } ! 214: ! 215: /* ! 216: ================= ! 217: SV_ListIP_f ! 218: ================= ! 219: */ ! 220: void SVCmd_ListIP_f (void) ! 221: { ! 222: int i; ! 223: byte b[4]; ! 224: ! 225: gi.cprintf (NULL, PRINT_HIGH, "Filter list:\n"); ! 226: for (i=0 ; i<numipfilters ; i++) ! 227: { ! 228: *(unsigned *)b = ipfilters[i].compare; ! 229: gi.cprintf (NULL, PRINT_HIGH, "%3i.%3i.%3i.%3i\n", b[0], b[1], b[2], b[3]); ! 230: } ! 231: } ! 232: ! 233: /* ! 234: ================= ! 235: SV_WriteIP_f ! 236: ================= ! 237: */ ! 238: void SVCmd_WriteIP_f (void) ! 239: { ! 240: FILE *f; ! 241: char name[MAX_OSPATH]; ! 242: byte b[4]; ! 243: int i; ! 244: cvar_t *game; ! 245: ! 246: game = gi.cvar("game", "", 0); ! 247: ! 248: if (!*game->string) ! 249: sprintf (name, "%s/listip.cfg", GAMEVERSION); ! 250: else ! 251: sprintf (name, "%s/listip.cfg", game->string); ! 252: ! 253: gi.cprintf (NULL, PRINT_HIGH, "Writing %s.\n", name); ! 254: ! 255: f = fopen (name, "wb"); ! 256: if (!f) ! 257: { ! 258: gi.cprintf (NULL, PRINT_HIGH, "Couldn't open %s\n", name); ! 259: return; ! 260: } ! 261: ! 262: fprintf(f, "set filterban %d\n", (int)filterban->value); ! 263: ! 264: for (i=0 ; i<numipfilters ; i++) ! 265: { ! 266: *(unsigned *)b = ipfilters[i].compare; ! 267: fprintf (f, "sv addip %i.%i.%i.%i\n", b[0], b[1], b[2], b[3]); ! 268: } ! 269: ! 270: fclose (f); ! 271: } ! 272: ! 273: /* 1.1 root 274: ================= 275: ServerCommand 276: 277: ServerCommand will be called when an "sv" command is issued. 278: The game can issue gi.argc() / gi.argv() commands to get the rest 279: of the parameters 280: ================= 281: */ 282: void ServerCommand (void) 283: { 284: char *cmd; 285: 286: cmd = gi.argv(1); 287: if (Q_stricmp (cmd, "test") == 0) 288: Svcmd_Test_f (); 1.1.1.2 ! root 289: else if (Q_stricmp (cmd, "addip") == 0) ! 290: SVCmd_AddIP_f (); ! 291: else if (Q_stricmp (cmd, "removeip") == 0) ! 292: SVCmd_RemoveIP_f (); ! 293: else if (Q_stricmp (cmd, "listip") == 0) ! 294: SVCmd_ListIP_f (); ! 295: else if (Q_stricmp (cmd, "writeip") == 0) ! 296: SVCmd_WriteIP_f (); 1.1 root 297: else 298: gi.cprintf (NULL, PRINT_HIGH, "Unknown server command \"%s\"\n", cmd); 299: } 300:
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