diff options
| author | Daniel Walton <dwalton@cumulusnetworks.com> | 2016-02-11 08:55:24 -0800 |
|---|---|---|
| committer | Daniel Walton <dwalton@cumulusnetworks.com> | 2016-02-11 08:55:24 -0800 |
| commit | 41d9cc6a6569e3a66f77a9cfd2869d209e665fa0 (patch) | |
| tree | f7de1b136260d314a26b378156d7f94cf42e36a7 /babeld/xroute.c | |
| parent | b3556ea327bf3abc4bd183a4b5b8ad1a15d15035 (diff) | |
quagga: remove babel
Ticket: CM-9274
Reviewed By: sharpd@cumulusnetworks.com
Testing Done:
<DETAILED DESCRIPTION (REPLACE)>
Diffstat (limited to 'babeld/xroute.c')
| -rw-r--r-- | babeld/xroute.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/babeld/xroute.c b/babeld/xroute.c deleted file mode 100644 index 806516718f..0000000000 --- a/babeld/xroute.c +++ /dev/null @@ -1,237 +0,0 @@ -/* - * This file is free software: you may copy, redistribute and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation, either version 2 of the License, or (at your - * option) any later version. - * - * This file is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * This file incorporates work covered by the following copyright and - * permission notice: - * -Copyright (c) 2007, 2008 by Juliusz Chroboczek -Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. -*/ - -#include <zebra.h> -#include "if.h" -#include "log.h" - -#include "babeld.h" -#include "kernel.h" -#include "neighbour.h" -#include "message.h" -#include "route.h" -#include "xroute.h" -#include "util.h" -#include "babel_interface.h" - -static int xroute_add_new_route(unsigned char prefix[16], unsigned char plen, - unsigned short metric, unsigned int ifindex, - int proto, int send_updates); - -static struct xroute *xroutes; -static int numxroutes = 0, maxxroutes = 0; - -/* Add redistributed route to Babel table. */ -int -babel_ipv4_route_add (struct zapi_ipv4 *api, struct prefix_ipv4 *prefix, - unsigned int ifindex, struct in_addr *nexthop) -{ - unsigned char uchar_prefix[16]; - - inaddr_to_uchar(uchar_prefix, &prefix->prefix); - debugf(BABEL_DEBUG_ROUTE, "Adding new ipv4 route comming from Zebra."); - xroute_add_new_route(uchar_prefix, prefix->prefixlen + 96, - api->metric, ifindex, 0, 1); - return 0; -} - -/* Remove redistributed route from Babel table. */ -int -babel_ipv4_route_delete (struct zapi_ipv4 *api, struct prefix_ipv4 *prefix, - unsigned int ifindex) -{ - unsigned char uchar_prefix[16]; - struct xroute *xroute = NULL; - - inaddr_to_uchar(uchar_prefix, &prefix->prefix); - xroute = find_xroute(uchar_prefix, prefix->prefixlen + 96); - if (xroute != NULL) { - debugf(BABEL_DEBUG_ROUTE, "Removing ipv4 route (from zebra)."); - flush_xroute(xroute); - } - return 0; -} - -/* Add redistributed route to Babel table. */ -int -babel_ipv6_route_add (struct zapi_ipv6 *api, struct prefix_ipv6 *prefix, - unsigned int ifindex, struct in6_addr *nexthop) -{ - unsigned char uchar_prefix[16]; - - in6addr_to_uchar(uchar_prefix, &prefix->prefix); - debugf(BABEL_DEBUG_ROUTE, "Adding new route comming from Zebra."); - xroute_add_new_route(uchar_prefix, prefix->prefixlen, api->metric, ifindex, - 0, 1); - return 0; -} - -/* Remove redistributed route from Babel table. */ -int -babel_ipv6_route_delete (struct zapi_ipv6 *api, struct prefix_ipv6 *prefix, - unsigned int ifindex) -{ - unsigned char uchar_prefix[16]; - struct xroute *xroute = NULL; - - in6addr_to_uchar(uchar_prefix, &prefix->prefix); - xroute = find_xroute(uchar_prefix, prefix->prefixlen); - if (xroute != NULL) { - debugf(BABEL_DEBUG_ROUTE, "Removing route (from zebra)."); - flush_xroute(xroute); - } - return 0; -} - -struct xroute * -find_xroute(const unsigned char *prefix, unsigned char plen) -{ - int i; - for(i = 0; i < numxroutes; i++) { - if(xroutes[i].plen == plen && - memcmp(xroutes[i].prefix, prefix, 16) == 0) - return &xroutes[i]; - } - return NULL; -} - -void -flush_xroute(struct xroute *xroute) -{ - int i; - - i = xroute - xroutes; - assert(i >= 0 && i < numxroutes); - - if(i != numxroutes - 1) - memcpy(xroutes + i, xroutes + numxroutes - 1, sizeof(struct xroute)); - numxroutes--; - VALGRIND_MAKE_MEM_UNDEFINED(xroutes + numxroutes, sizeof(struct xroute)); - - if(numxroutes == 0) { - free(xroutes); - xroutes = NULL; - maxxroutes = 0; - } else if(maxxroutes > 8 && numxroutes < maxxroutes / 4) { - struct xroute *new_xroutes; - int n = maxxroutes / 2; - new_xroutes = realloc(xroutes, n * sizeof(struct xroute)); - if(new_xroutes == NULL) - return; - xroutes = new_xroutes; - maxxroutes = n; - } -} - -static int -add_xroute(unsigned char prefix[16], unsigned char plen, - unsigned short metric, unsigned int ifindex, int proto) -{ - struct xroute *xroute = find_xroute(prefix, plen); - if(xroute) { - if(xroute->metric <= metric) - return 0; - xroute->metric = metric; - return 1; - } - - if(numxroutes >= maxxroutes) { - struct xroute *new_xroutes; - int n = maxxroutes < 1 ? 8 : 2 * maxxroutes; - new_xroutes = xroutes == NULL ? - malloc(n * sizeof(struct xroute)) : - realloc(xroutes, n * sizeof(struct xroute)); - if(new_xroutes == NULL) - return -1; - maxxroutes = n; - xroutes = new_xroutes; - } - - memcpy(xroutes[numxroutes].prefix, prefix, 16); - xroutes[numxroutes].plen = plen; - xroutes[numxroutes].metric = metric; - xroutes[numxroutes].ifindex = ifindex; - xroutes[numxroutes].proto = proto; - numxroutes++; - return 1; -} - -/* Returns an overestimate of the number of xroutes. */ -int -xroutes_estimate() -{ - return numxroutes; -} - -void -for_all_xroutes(void (*f)(struct xroute*, void*), void *closure) -{ - int i; - - for(i = 0; i < numxroutes; i++) - (*f)(&xroutes[i], closure); -} - -/* add an xroute, verifying some conditions; return 0 if there is no changes */ -static int -xroute_add_new_route(unsigned char prefix[16], unsigned char plen, - unsigned short metric, unsigned int ifindex, - int proto, int send_updates) -{ - int rc; - if(martian_prefix(prefix, plen)) - return 0; - metric = redistribute_filter(prefix, plen, ifindex, proto); - if(metric < INFINITY) { - rc = add_xroute(prefix, plen, metric, ifindex, proto); - if(rc > 0) { - struct babel_route *route; - route = find_installed_route(prefix, plen); - if(route) { - if(allow_duplicates < 0 || - metric < allow_duplicates) - uninstall_route(route); - } - if(send_updates) - send_update(NULL, 0, prefix, plen); - return 1; - } - } - return 0; -} |
