Annotation of embedaddon/quagga/babeld/babel_zebra.c, revision 1.1
1.1 ! misho 1: /*
! 2: * This file is free software: you may copy, redistribute and/or modify it
! 3: * under the terms of the GNU General Public License as published by the
! 4: * Free Software Foundation, either version 2 of the License, or (at your
! 5: * option) any later version.
! 6: *
! 7: * This file is distributed in the hope that it will be useful, but
! 8: * WITHOUT ANY WARRANTY; without even the implied warranty of
! 9: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
! 10: * General Public License for more details.
! 11: *
! 12: * You should have received a copy of the GNU General Public License
! 13: * along with this program. If not, see <http://www.gnu.org/licenses/>.
! 14: *
! 15: * This file incorporates work covered by the following copyright and
! 16: * permission notice:
! 17: *
! 18: Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek
! 19:
! 20: Permission is hereby granted, free of charge, to any person obtaining a copy
! 21: of this software and associated documentation files (the "Software"), to deal
! 22: in the Software without restriction, including without limitation the rights
! 23: to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
! 24: copies of the Software, and to permit persons to whom the Software is
! 25: furnished to do so, subject to the following conditions:
! 26:
! 27: The above copyright notice and this permission notice shall be included in
! 28: all copies or substantial portions of the Software.
! 29:
! 30: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! 31: IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! 32: FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
! 33: AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! 34: LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
! 35: OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
! 36: THE SOFTWARE.
! 37: */
! 38:
! 39: /* quagga's includes */
! 40: #include <zebra.h>
! 41: #include "command.h"
! 42: #include "zclient.h"
! 43: #include "stream.h"
! 44:
! 45: /* babel's includes*/
! 46: #include "babel_zebra.h"
! 47: #include "babel_interface.h"
! 48: #include "xroute.h"
! 49: #include "util.h"
! 50:
! 51: void babelz_zebra_init(void);
! 52:
! 53:
! 54: /* we must use a pointer because of zclient.c's functions (new, free). */
! 55: struct zclient *zclient;
! 56: static int zebra_config_write (struct vty *vty);
! 57:
! 58: /* Debug types */
! 59: static struct {
! 60: int type;
! 61: int str_min_len;
! 62: const char *str;
! 63: } debug_type[] = {
! 64: {BABEL_DEBUG_COMMON, 1, "common"},
! 65: {BABEL_DEBUG_KERNEL, 1, "kernel"},
! 66: {BABEL_DEBUG_FILTER, 1, "filter"},
! 67: {BABEL_DEBUG_TIMEOUT, 1, "timeout"},
! 68: {BABEL_DEBUG_IF, 1, "interface"},
! 69: {BABEL_DEBUG_ROUTE, 1, "route"},
! 70: {BABEL_DEBUG_ALL, 1, "all"},
! 71: {0, 0, NULL}
! 72: };
! 73:
! 74: /* Zebra node structure. */
! 75: struct cmd_node zebra_node =
! 76: {
! 77: ZEBRA_NODE,
! 78: "%s(config-router)# ",
! 79: 1 /* vtysh? yes */
! 80: };
! 81:
! 82:
! 83: /* Zebra route add and delete treatment (ipv6). */
! 84: static int
! 85: babel_zebra_read_ipv6 (int command, struct zclient *zclient,
! 86: zebra_size_t length)
! 87: {
! 88: struct stream *s;
! 89: struct zapi_ipv6 api;
! 90: unsigned long ifindex = -1;
! 91: struct in6_addr nexthop;
! 92: struct prefix_ipv6 prefix;
! 93:
! 94: s = zclient->ibuf;
! 95: ifindex = 0;
! 96: memset (&nexthop, 0, sizeof (struct in6_addr));
! 97: memset (&api, 0, sizeof(struct zapi_ipv6));
! 98: memset (&prefix, 0, sizeof (struct prefix_ipv6));
! 99:
! 100: /* Type, flags, message. */
! 101: api.type = stream_getc (s);
! 102: api.flags = stream_getc (s);
! 103: api.message = stream_getc (s);
! 104:
! 105: /* IPv6 prefix. */
! 106: prefix.family = AF_INET6;
! 107: prefix.prefixlen = stream_getc (s);
! 108: stream_get (&prefix.prefix, s, PSIZE (prefix.prefixlen));
! 109:
! 110: /* Nexthop, ifindex, distance, metric. */
! 111: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) {
! 112: api.nexthop_num = stream_getc (s);
! 113: stream_get (&nexthop, s, sizeof(nexthop));
! 114: }
! 115: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX)) {
! 116: api.ifindex_num = stream_getc (s);
! 117: ifindex = stream_getl (s);
! 118: }
! 119: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
! 120: api.distance = stream_getc (s);
! 121: else
! 122: api.distance = 0;
! 123: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
! 124: api.metric = stream_getl (s);
! 125: else
! 126: api.metric = 0;
! 127:
! 128: if (command == ZEBRA_IPV6_ROUTE_ADD)
! 129: babel_ipv6_route_add(&api, &prefix, ifindex, &nexthop);
! 130: else
! 131: babel_ipv6_route_delete(&api, &prefix, ifindex);
! 132:
! 133: return 0;
! 134: }
! 135:
! 136: static int
! 137: babel_zebra_read_ipv4 (int command, struct zclient *zclient,
! 138: zebra_size_t length)
! 139: {
! 140: struct stream *s;
! 141: struct zapi_ipv4 api;
! 142: unsigned long ifindex = -1;
! 143: struct in_addr nexthop;
! 144: struct prefix_ipv4 prefix;
! 145:
! 146: s = zclient->ibuf;
! 147: ifindex = 0;
! 148: memset (&nexthop, 0, sizeof (struct in_addr));
! 149: memset (&api, 0, sizeof(struct zapi_ipv4));
! 150: memset (&prefix, 0, sizeof (struct prefix_ipv4));
! 151:
! 152: /* Type, flags, message. */
! 153: api.type = stream_getc (s);
! 154: api.flags = stream_getc (s);
! 155: api.message = stream_getc (s);
! 156:
! 157: /* IPv6 prefix. */
! 158: prefix.family = AF_INET;
! 159: prefix.prefixlen = stream_getc (s);
! 160: stream_get (&prefix.prefix, s, PSIZE (prefix.prefixlen));
! 161:
! 162: /* Nexthop, ifindex, distance, metric. */
! 163: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) {
! 164: api.nexthop_num = stream_getc (s);
! 165: stream_get (&nexthop, s, sizeof(nexthop));
! 166: }
! 167: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX)) {
! 168: api.ifindex_num = stream_getc (s);
! 169: ifindex = stream_getl (s);
! 170: }
! 171: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE))
! 172: api.distance = stream_getc (s);
! 173: else
! 174: api.distance = 0;
! 175: if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC))
! 176: api.metric = stream_getl (s);
! 177: else
! 178: api.metric = 0;
! 179:
! 180: if (command == ZEBRA_IPV6_ROUTE_ADD) {
! 181: babel_ipv4_route_add(&api, &prefix, ifindex, &nexthop);
! 182: } else {
! 183: babel_ipv4_route_delete(&api, &prefix, ifindex);
! 184: }
! 185:
! 186: return 0;
! 187: }
! 188:
! 189: /* [Babel Command] */
! 190: DEFUN (babel_redistribute_type,
! 191: babel_redistribute_type_cmd,
! 192: "redistribute " QUAGGA_REDIST_STR_BABELD,
! 193: "Redistribute\n"
! 194: QUAGGA_REDIST_HELP_STR_BABELD)
! 195: {
! 196: int type;
! 197:
! 198: type = proto_redistnum(AFI_IP6, argv[0]);
! 199:
! 200: if (type < 0)
! 201: type = proto_redistnum(AFI_IP, argv[0]);
! 202:
! 203: if (type < 0) {
! 204: vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
! 205: return CMD_WARNING;
! 206: }
! 207:
! 208: zclient_redistribute (ZEBRA_REDISTRIBUTE_ADD, zclient, type);
! 209: return CMD_SUCCESS;
! 210: }
! 211:
! 212: /* [Babel Command] */
! 213: DEFUN (no_babel_redistribute_type,
! 214: no_babel_redistribute_type_cmd,
! 215: "no redistribute " QUAGGA_REDIST_STR_BABELD,
! 216: NO_STR
! 217: "Redistribute\n"
! 218: QUAGGA_REDIST_HELP_STR_BABELD)
! 219: {
! 220: int type;
! 221:
! 222: type = proto_redistnum(AFI_IP6, argv[0]);
! 223:
! 224: if (type < 0)
! 225: type = proto_redistnum(AFI_IP, argv[0]);
! 226:
! 227: if (type < 0) {
! 228: vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
! 229: return CMD_WARNING;
! 230: }
! 231:
! 232: zclient_redistribute (ZEBRA_REDISTRIBUTE_DELETE, zclient, type);
! 233: /* perhaps should we remove xroutes having the same type... */
! 234: return CMD_SUCCESS;
! 235: }
! 236:
! 237: #ifndef NO_DEBUG
! 238: /* [Babel Command] */
! 239: DEFUN (debug_babel,
! 240: debug_babel_cmd,
! 241: "debug babel (common|kernel|filter|timeout|interface|route|all)",
! 242: "Enable debug messages for specific or all part.\n"
! 243: "Babel information\n"
! 244: "Common messages (default)\n"
! 245: "Kernel messages\n"
! 246: "Filter messages\n"
! 247: "Timeout messages\n"
! 248: "Interface messages\n"
! 249: "Route messages\n"
! 250: "All messages\n")
! 251: {
! 252: int i;
! 253:
! 254: for(i = 0; debug_type[i].str != NULL; i++) {
! 255: if (strncmp (debug_type[i].str, argv[0],
! 256: debug_type[i].str_min_len) == 0) {
! 257: debug |= debug_type[i].type;
! 258: return CMD_SUCCESS;
! 259: }
! 260: }
! 261:
! 262: vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
! 263:
! 264: return CMD_WARNING;
! 265: }
! 266:
! 267: /* [Babel Command] */
! 268: DEFUN (no_debug_babel,
! 269: no_debug_babel_cmd,
! 270: "no debug babel (common|kernel|filter|timeout|interface|route|all)",
! 271: NO_STR
! 272: "Disable debug messages for specific or all part.\n"
! 273: "Babel information\n"
! 274: "Common messages (default)\n"
! 275: "Kernel messages\n"
! 276: "Filter messages\n"
! 277: "Timeout messages\n"
! 278: "Interface messages\n"
! 279: "Route messages\n"
! 280: "All messages\n")
! 281: {
! 282: int i;
! 283:
! 284: for (i = 0; debug_type[i].str; i++) {
! 285: if (strncmp(debug_type[i].str, argv[0],
! 286: debug_type[i].str_min_len) == 0) {
! 287: debug &= ~debug_type[i].type;
! 288: return CMD_SUCCESS;
! 289: }
! 290: }
! 291:
! 292: vty_out(vty, "Invalid type %s%s", argv[0], VTY_NEWLINE);
! 293:
! 294: return CMD_WARNING;
! 295: }
! 296: #endif /* NO_DEBUG */
! 297:
! 298: /* Output "debug" statement lines, if necessary. */
! 299: int
! 300: debug_babel_config_write (struct vty * vty)
! 301: {
! 302: #ifdef NO_DEBUG
! 303: return 0;
! 304: #else
! 305: int i, lines = 0;
! 306:
! 307: if (debug == BABEL_DEBUG_ALL)
! 308: {
! 309: vty_out (vty, "debug babel all%s", VTY_NEWLINE);
! 310: lines++;
! 311: }
! 312: else
! 313: for (i = 0; debug_type[i].str != NULL; i++)
! 314: if
! 315: (
! 316: debug_type[i].type != BABEL_DEBUG_ALL
! 317: && CHECK_FLAG (debug, debug_type[i].type)
! 318: )
! 319: {
! 320: vty_out (vty, "debug babel %s%s", debug_type[i].str, VTY_NEWLINE);
! 321: lines++;
! 322: }
! 323: if (lines)
! 324: {
! 325: vty_out (vty, "!%s", VTY_NEWLINE);
! 326: lines++;
! 327: }
! 328: return lines;
! 329: #endif /* NO_DEBUG */
! 330: }
! 331:
! 332: void babelz_zebra_init(void)
! 333: {
! 334: zclient = zclient_new();
! 335: zclient_init(zclient, ZEBRA_ROUTE_BABEL);
! 336:
! 337: zclient->interface_add = babel_interface_add;
! 338: zclient->interface_delete = babel_interface_delete;
! 339: zclient->interface_up = babel_interface_up;
! 340: zclient->interface_down = babel_interface_down;
! 341: zclient->interface_address_add = babel_interface_address_add;
! 342: zclient->interface_address_delete = babel_interface_address_delete;
! 343: zclient->ipv4_route_add = babel_zebra_read_ipv4;
! 344: zclient->ipv4_route_delete = babel_zebra_read_ipv4;
! 345: zclient->ipv6_route_add = babel_zebra_read_ipv6;
! 346: zclient->ipv6_route_delete = babel_zebra_read_ipv6;
! 347:
! 348: install_node (&zebra_node, zebra_config_write);
! 349: install_element(BABEL_NODE, &babel_redistribute_type_cmd);
! 350: install_element(BABEL_NODE, &no_babel_redistribute_type_cmd);
! 351: install_element(ENABLE_NODE, &debug_babel_cmd);
! 352: install_element(ENABLE_NODE, &no_debug_babel_cmd);
! 353: install_element(CONFIG_NODE, &debug_babel_cmd);
! 354: install_element(CONFIG_NODE, &no_debug_babel_cmd);
! 355: }
! 356:
! 357: static int
! 358: zebra_config_write (struct vty *vty)
! 359: {
! 360: if (! zclient->enable)
! 361: {
! 362: vty_out (vty, "no router zebra%s", VTY_NEWLINE);
! 363: return 1;
! 364: }
! 365: else if (! zclient->redist[ZEBRA_ROUTE_BABEL])
! 366: {
! 367: vty_out (vty, "router zebra%s", VTY_NEWLINE);
! 368: vty_out (vty, " no redistribute babel%s", VTY_NEWLINE);
! 369: return 1;
! 370: }
! 371: return 0;
! 372: }
! 373:
! 374: void
! 375: babel_zebra_close_connexion(void)
! 376: {
! 377: zclient_stop(zclient);
! 378: }
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