-/*
- * 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:
- *
-
+// SPDX-License-Identifier: MIT
+/*
Copyright 2007, 2008 by Grégoire Henry, Julien Cristau and Juliusz Chroboczek
Copyright 2011, 2012 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.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#include <sys/time.h>
#include <sys/param.h>
#include <time.h>
#include "command.h"
#include "vty.h"
#include "memory.h"
-#include "thread.h"
+#include "frrevent.h"
+#include "nexthop.h"
#include "util.h"
#include "babel_interface.h"
static int
-kernel_route_v4(int add, const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric);
-static int
-kernel_route_v6(int add, const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex,
- unsigned int metric);
+zebra_route(int add, int familt, const unsigned char *pref, unsigned short plen,
+ const unsigned char *gate, int ifindex, unsigned int metric);
int
kernel_interface_operational(struct interface *interface)
}
int
-kernel_route(int operation, const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex, unsigned int metric,
- const unsigned char *newgate, int newifindex,
+kernel_route(enum babel_kernel_routes operation, const unsigned char *pref,
+ unsigned short plen, const unsigned char *gate, int ifindex,
+ unsigned int metric, const unsigned char *newgate, int newifindex,
unsigned int newmetric)
{
int rc;
- int ipv4;
+ int family;
/* Check that the protocol family is consistent. */
if(plen >= 96 && v4mapped(pref)) {
errno = EINVAL;
return -1;
}
- ipv4 = 1;
+ family = AF_INET;
} else {
if(v4mapped(gate)) {
errno = EINVAL;
return -1;
}
- ipv4 = 0;
+ family = AF_INET6;
}
switch (operation) {
case ROUTE_ADD:
- return ipv4 ?
- kernel_route_v4(1, pref, plen, gate, ifindex, metric):
- kernel_route_v6(1, pref, plen, gate, ifindex, metric);
- break;
+ return zebra_route(1, family, pref, plen, gate, ifindex, metric);
case ROUTE_FLUSH:
- return ipv4 ?
- kernel_route_v4(0, pref, plen, gate, ifindex, metric):
- kernel_route_v6(0, pref, plen, gate, ifindex, metric);
- break;
+ return zebra_route(0, family, pref, plen, gate, ifindex, metric);
case ROUTE_MODIFY:
if(newmetric == metric && memcmp(newgate, gate, 16) == 0 &&
newifindex == ifindex)
return 0;
debugf(BABEL_DEBUG_ROUTE, "Modify route: delete old; add new.");
- rc = ipv4 ?
- kernel_route_v4(0, pref, plen, gate, ifindex, metric):
- kernel_route_v6(0, pref, plen, gate, ifindex, metric);
-
+ rc = zebra_route(0, family, pref, plen, gate, ifindex, metric);
if (rc < 0)
return -1;
- rc = ipv4 ?
- kernel_route_v4(1, pref, plen, newgate, newifindex, newmetric):
- kernel_route_v6(1, pref, plen, newgate, newifindex, newmetric);
-
+ rc = zebra_route(1, family, pref, plen, newgate, newifindex,
+ newmetric);
return rc;
- break;
- default:
- zlog_err("this should never appens (false value - kernel_route)");
- assert(0);
- exit(1);
- break;
- }
-}
-
-static int
-kernel_route_v4(int add,
- const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex, unsigned int metric)
-{
- struct zapi_ipv4 api; /* quagga's communication system */
- struct prefix_ipv4 quagga_prefix; /* quagga's prefix */
- struct in_addr babel_prefix_addr; /* babeld's prefix addr */
- struct in_addr nexthop; /* next router to go */
- struct in_addr *nexthop_pointer = &nexthop; /* it's an array! */
-
- /* convert to be understandable by quagga */
- /* convert given addresses */
- uchar_to_inaddr(&babel_prefix_addr, pref);
- uchar_to_inaddr(&nexthop, gate);
-
- /* make prefix structure */
- memset (&quagga_prefix, 0, sizeof(quagga_prefix));
- quagga_prefix.family = AF_INET;
- IPV4_ADDR_COPY (&quagga_prefix.prefix, &babel_prefix_addr);
- quagga_prefix.prefixlen = plen - 96; /* our plen is for v4mapped's addr */
- apply_mask_ipv4(&quagga_prefix);
-
- api.vrf_id = VRF_DEFAULT;
- api.type = ZEBRA_ROUTE_BABEL;
- api.flags = 0;
- api.message = 0;
- api.safi = SAFI_UNICAST;
-
- /* Unlike the native Linux and BSD interfaces, Quagga doesn't like
- there to be both and IPv4 nexthop and an ifindex. Omit the
- ifindex, and assume that the connected prefixes be set up
- correctly. */
-
- SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
- api.ifindex_num = 0;
- if(metric >= KERNEL_INFINITY) {
- api.flags = ZEBRA_FLAG_BLACKHOLE;
- api.nexthop_num = 0;
- } else {
- api.nexthop_num = 1;
- api.nexthop = &nexthop_pointer;
- SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
- api.metric = metric;
}
- debugf(BABEL_DEBUG_ROUTE, "%s route (ipv4) to zebra",
- add ? "adding" : "removing" );
- return zapi_ipv4_route (add ? ZEBRA_IPV4_ROUTE_ADD :
- ZEBRA_IPV4_ROUTE_DELETE,
- zclient, &quagga_prefix, &api);
+ return 0;
}
static int
-kernel_route_v6(int add, const unsigned char *pref, unsigned short plen,
- const unsigned char *gate, int ifindex, unsigned int metric)
+zebra_route(int add, int family, const unsigned char *pref, unsigned short plen,
+ const unsigned char *gate, int ifindex, unsigned int metric)
{
- unsigned int tmp_ifindex = ifindex; /* (for typing) */
- struct zapi_ipv6 api; /* quagga's communication system */
- struct prefix_ipv6 quagga_prefix; /* quagga's prefix */
- struct in6_addr babel_prefix_addr; /* babeld's prefix addr */
- struct in6_addr nexthop; /* next router to go */
- struct in6_addr *nexthop_pointer = &nexthop;
+ struct zapi_route api; /* quagga's communication system */
+ struct prefix quagga_prefix; /* quagga's prefix */
+ union g_addr babel_prefix_addr; /* babeld's prefix addr */
+ struct zapi_nexthop *api_nh; /* next router to go - no ECMP */
+
+ api_nh = &api.nexthops[0];
/* convert to be understandable by quagga */
/* convert given addresses */
- uchar_to_in6addr(&babel_prefix_addr, pref);
- uchar_to_in6addr(&nexthop, gate);
+ switch (family) {
+ case AF_INET:
+ uchar_to_inaddr(&babel_prefix_addr.ipv4, pref);
+ break;
+ case AF_INET6:
+ uchar_to_in6addr(&babel_prefix_addr.ipv6, pref);
+ break;
+ }
/* make prefix structure */
memset (&quagga_prefix, 0, sizeof(quagga_prefix));
- quagga_prefix.family = AF_INET6;
- IPV6_ADDR_COPY (&quagga_prefix.prefix, &babel_prefix_addr);
- quagga_prefix.prefixlen = plen;
- apply_mask_ipv6(&quagga_prefix);
+ quagga_prefix.family = family;
+ switch (family) {
+ case AF_INET:
+ IPV4_ADDR_COPY (&quagga_prefix.u.prefix4, &babel_prefix_addr.ipv4);
+ /* our plen is for v4mapped's addr */
+ quagga_prefix.prefixlen = plen - 96;
+ break;
+ case AF_INET6:
+ IPV6_ADDR_COPY (&quagga_prefix.u.prefix6, &babel_prefix_addr.ipv6);
+ quagga_prefix.prefixlen = plen;
+ break;
+ }
+ apply_mask(&quagga_prefix);
- api.vrf_id = VRF_DEFAULT;
+ memset(&api, 0, sizeof(api));
api.type = ZEBRA_ROUTE_BABEL;
- api.flags = 0;
- api.message = 0;
api.safi = SAFI_UNICAST;
- SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
+ api.vrf_id = VRF_DEFAULT;
+ api.prefix = quagga_prefix;
+
if(metric >= KERNEL_INFINITY) {
- api.flags = ZEBRA_FLAG_BLACKHOLE;
- api.nexthop_num = 0;
- api.ifindex_num = 0;
+ zapi_route_set_blackhole(&api, BLACKHOLE_REJECT);
} else {
+ SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP);
api.nexthop_num = 1;
- api.nexthop = &nexthop_pointer;
- SET_FLAG(api.message, ZAPI_MESSAGE_IFINDEX);
- api.ifindex_num = 1;
- api.ifindex = &tmp_ifindex;
+ api_nh->ifindex = ifindex;
+ api_nh->vrf_id = VRF_DEFAULT;
+ switch (family) {
+ case AF_INET:
+ uchar_to_inaddr(&api_nh->gate.ipv4, gate);
+ if (IPV4_ADDR_SAME(&api_nh->gate.ipv4, &quagga_prefix.u.prefix4)
+ && quagga_prefix.prefixlen == IPV4_MAX_BITLEN) {
+ api_nh->type = NEXTHOP_TYPE_IFINDEX;
+ } else {
+ api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX;
+ }
+ break;
+ case AF_INET6:
+ uchar_to_in6addr(&api_nh->gate.ipv6, gate);
+ /* difference to IPv4: always leave the linklocal as nexthop */
+ api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX;
+ break;
+ }
SET_FLAG(api.message, ZAPI_MESSAGE_METRIC);
api.metric = metric;
}
- debugf(BABEL_DEBUG_ROUTE, "%s route (ipv6) to zebra",
- add ? "adding" : "removing" );
- return zapi_ipv6_route (add ? ZEBRA_IPV6_ROUTE_ADD :
- ZEBRA_IPV6_ROUTE_DELETE,
- zclient, &quagga_prefix, &api);
+ debugf(BABEL_DEBUG_ROUTE, "%s route (%s) to zebra",
+ add ? "adding" : "removing",
+ (family == AF_INET) ? "ipv4" : "ipv6");
+ return zclient_route_send (add ? ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE,
+ zclient, &api);
}
int
-if_eui64(char *ifname, int ifindex, unsigned char *eui)
+if_eui64(int ifindex, unsigned char *eui)
{
- struct interface *ifp = if_lookup_by_index(ifindex);
+ struct interface *ifp = if_lookup_by_index(ifindex, VRF_DEFAULT);
if (ifp == NULL) {
return -1;
}
-#ifdef HAVE_STRUCT_SOCKADDR_DL
- u_char len = ifp->sdl.sdl_alen;
- char *tmp = ifp->sdl.sdl_data + ifp->sdl.sdl_nlen;
-#else
- u_char len = (u_char) ifp->hw_addr_len;
+
+ uint8_t len = (uint8_t)ifp->hw_addr_len;
char *tmp = (void*) ifp->hw_addr;
-#endif
+
if (len == 8) {
memcpy(eui, tmp, 8);
eui[0] ^= 2;
/* Like gettimeofday, but returns monotonic time. If POSIX clocks are not
available, falls back to gettimeofday but enforces monotonicity. */
-int
+void
gettime(struct timeval *tv)
{
- return quagga_gettime(QUAGGA_CLK_MONOTONIC, tv);
+ monotime(tv);
}
/* If /dev/urandom doesn't exist, this will fail with ENOENT, which the
}
return rc;
}
-
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