/*
- PIM for Quagga
- Copyright (C) 2008 Everton da Silva Marques
-
- This program is free software; you can redistribute it 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 program 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; see the file COPYING; if not, write to the
- Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- MA 02110-1301 USA
-*/
+ * PIM for Quagga
+ * Copyright (C) 2008 Everton da Silva Marques
+ *
+ * This program is free software; you can redistribute it 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 program 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; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
#include <zebra.h>
#include "zebra/rib.h"
#include "stream.h"
#include "network.h"
#include "thread.h"
+#include "prefix.h"
+#include "vty.h"
#include "pimd.h"
+#include "pim_iface.h"
#include "pim_pim.h"
#include "pim_str.h"
+#include "pim_oil.h"
#include "pim_zlookup.h"
-extern int zclient_debug;
+static struct zclient *zlookup = NULL;
static void zclient_lookup_sched(struct zclient *zlookup, int delay);
{
zassert(!zlookup->t_connect);
- THREAD_TIMER_ON(master, zlookup->t_connect,
- zclient_lookup_connect,
- zlookup, delay);
+ thread_add_timer(master, zclient_lookup_connect, zlookup, delay,
+ &zlookup->t_connect);
zlog_notice("%s: zclient lookup connection scheduled for %d seconds",
__PRETTY_FUNCTION__, delay);
static void zclient_lookup_sched_now(struct zclient *zlookup)
{
zassert(!zlookup->t_connect);
-
- zlookup->t_connect = thread_add_event(master, zclient_lookup_connect,
- zlookup, 0);
+ thread_add_event(master, zclient_lookup_connect, zlookup, 0,
+ &zlookup->t_connect);
zlog_notice("%s: zclient lookup immediate connection scheduled",
__PRETTY_FUNCTION__);
zclient_lookup_reconnect(zlookup);
}
-struct zclient *zclient_lookup_new()
+void
+zclient_lookup_free (void)
{
- struct zclient *zlookup;
+ zclient_free (zlookup);
+ zlookup = NULL;
+}
+void
+zclient_lookup_new (void)
+{
zlookup = zclient_new (master);
if (!zlookup) {
zlog_err("%s: zclient_new() failure",
__PRETTY_FUNCTION__);
- return 0;
+ return;
}
zlookup->sock = -1;
- zlookup->ibuf = stream_new(ZEBRA_MAX_PACKET_SIZ);
- zlookup->obuf = stream_new(ZEBRA_MAX_PACKET_SIZ);
- zlookup->t_connect = 0;
+ zlookup->t_connect = NULL;
zclient_lookup_sched_now(zlookup);
zlog_notice("%s: zclient lookup socket initialized",
__PRETTY_FUNCTION__);
- return zlookup;
}
static int zclient_read_nexthop(struct zclient *zlookup,
int nexthop_num;
int i, err;
- if (PIM_DEBUG_ZEBRA) {
- char addr_str[100];
+ if (PIM_DEBUG_PIM_TRACE_DETAIL) {
+ char addr_str[INET_ADDRSTRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
zlog_debug("%s: addr=%s",
__PRETTY_FUNCTION__,
raddr.s_addr = stream_get_ipv4(s);
if (raddr.s_addr != addr.s_addr) {
- char addr_str[100];
- char raddr_str[100];
+ char addr_str[INET_ADDRSTRLEN];
+ char raddr_str[INET_ADDRSTRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
pim_inet4_dump("<raddr?>", raddr, raddr_str, sizeof(raddr_str));
zlog_warn("%s: address mismatch: addr=%s raddr=%s",
return -6;
}
- length -= MIN_LEN;
-
for (i = 0; i < nexthop_num; ++i) {
enum nexthop_types_t nexthop_type;
+ struct pim_neighbor *nbr;
+ struct prefix p;
- if (length < 1) {
- zlog_err("%s: socket %d empty input expecting nexthop_type: len=%d",
- __func__, zlookup->sock, length);
- return -7;
- }
-
nexthop_type = stream_getc(s);
- --length;
-
+ if (num_ifindex >= tab_size) {
+ char addr_str[INET_ADDRSTRLEN];
+ pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
+ zlog_warn("%s %s: found too many nexthop ifindexes (%d > %d) for address %s",
+ __FILE__, __PRETTY_FUNCTION__,
+ (num_ifindex + 1), tab_size, addr_str);
+ return num_ifindex;
+ }
switch (nexthop_type) {
case NEXTHOP_TYPE_IFINDEX:
case NEXTHOP_TYPE_IPV4_IFINDEX:
- if (num_ifindex >= tab_size) {
- char addr_str[100];
- pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
- zlog_warn("%s %s: found too many nexthop ifindexes (%d > %d) for address %s",
- __FILE__, __PRETTY_FUNCTION__,
- (num_ifindex + 1), tab_size, addr_str);
- return num_ifindex;
- }
- if (nexthop_type == NEXTHOP_TYPE_IPV4_IFINDEX) {
- if (length < 4) {
- zlog_err("%s: socket %d short input expecting nexthop IPv4-addr: len=%d",
- __func__, zlookup->sock, length);
- return -8;
- }
- nexthop_tab[num_ifindex].nexthop_addr.s_addr = stream_get_ipv4(s);
- length -= 4;
+ case NEXTHOP_TYPE_IPV4:
+ nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET;
+ if (nexthop_type == NEXTHOP_TYPE_IPV4_IFINDEX ||
+ nexthop_type == NEXTHOP_TYPE_IPV4) {
+ nexthop_tab[num_ifindex].nexthop_addr.u.prefix4.s_addr = stream_get_ipv4(s);
}
else {
- nexthop_tab[num_ifindex].nexthop_addr.s_addr = PIM_NET_INADDR_ANY;
+ nexthop_tab[num_ifindex].nexthop_addr.u.prefix4.s_addr = PIM_NET_INADDR_ANY;
}
nexthop_tab[num_ifindex].ifindex = stream_getl(s);
nexthop_tab[num_ifindex].protocol_distance = distance;
nexthop_tab[num_ifindex].route_metric = metric;
++num_ifindex;
break;
- case NEXTHOP_TYPE_IPV4:
- if (num_ifindex >= tab_size) {
- char addr_str[100];
- pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
- zlog_warn("%s %s: found too many nexthop ifindexes (%d > %d) for address %s",
- __FILE__, __PRETTY_FUNCTION__,
- (num_ifindex + 1), tab_size, addr_str);
- return num_ifindex;
- }
- nexthop_tab[num_ifindex].nexthop_addr.s_addr = stream_get_ipv4(s);
- length -= 4;
- nexthop_tab[num_ifindex].ifindex = 0;
- nexthop_tab[num_ifindex].protocol_distance = distance;
- nexthop_tab[num_ifindex].route_metric = metric;
- if (PIM_DEBUG_ZEBRA) {
- char addr_str[100];
- char nexthop_str[100];
- pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
- pim_inet4_dump("<nexthop?>", nexthop_tab[num_ifindex].nexthop_addr, nexthop_str, sizeof(nexthop_str));
- zlog_debug("%s %s: zebra returned recursive nexthop %s for address %s",
- __FILE__, __PRETTY_FUNCTION__,
- nexthop_str, addr_str);
- }
- ++num_ifindex;
+ case NEXTHOP_TYPE_IPV6_IFINDEX:
+ nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET6;
+ stream_get (&nexthop_tab[num_ifindex].nexthop_addr.u.prefix6,
+ s,
+ sizeof(struct in6_addr));
+ nexthop_tab[num_ifindex].ifindex = stream_getl (s);
+
+ p.family = AF_INET6;
+ p.prefixlen = IPV6_MAX_PREFIXLEN;
+ memcpy (&p.u.prefix6,
+ &nexthop_tab[num_ifindex].nexthop_addr.u.prefix6,
+ sizeof(struct in6_addr));
+
+ /*
+ * If we are sending v6 secondary assume we receive v6 secondary
+ */
+ if (pimg->send_v6_secondary)
+ nbr = pim_neighbor_find_by_secondary(if_lookup_by_index (nexthop_tab[num_ifindex].ifindex, VRF_DEFAULT), &p);
+ else
+ nbr = pim_neighbor_find_if (if_lookup_by_index (nexthop_tab[num_ifindex].ifindex, VRF_DEFAULT));
+ if (nbr)
+ {
+ nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET;
+ nexthop_tab[num_ifindex].nexthop_addr.u.prefix4 = nbr->source_addr;
+ }
+ ++num_ifindex;
break;
default:
/* do nothing */
{
- char addr_str[100];
+ char addr_str[INET_ADDRSTRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
zlog_warn("%s %s: found non-ifindex nexthop type=%d for address %s",
__FILE__, __PRETTY_FUNCTION__,
return num_ifindex;
}
-static int zclient_lookup_nexthop_once(struct zclient *zlookup,
- struct pim_zlookup_nexthop nexthop_tab[],
- const int tab_size,
- struct in_addr addr)
+static int
+zclient_lookup_nexthop_once (struct pim_zlookup_nexthop nexthop_tab[],
+ const int tab_size,
+ struct in_addr addr)
{
struct stream *s;
int ret;
- if (PIM_DEBUG_ZEBRA) {
- char addr_str[100];
+ if (PIM_DEBUG_PIM_TRACE_DETAIL) {
+ char addr_str[INET_ADDRSTRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
zlog_debug("%s: addr=%s",
__PRETTY_FUNCTION__,
ret = writen(zlookup->sock, s->data, stream_get_endp(s));
if (ret < 0) {
- zlog_err("%s %s: writen() failure writing to zclient lookup socket",
- __FILE__, __PRETTY_FUNCTION__);
+ zlog_err("%s %s: writen() failure: %d writing to zclient lookup socket",
+ __FILE__, __PRETTY_FUNCTION__, errno);
zclient_lookup_failed(zlookup);
return -2;
}
tab_size, addr);
}
-int zclient_lookup_nexthop(struct zclient *zlookup,
- struct pim_zlookup_nexthop nexthop_tab[],
- const int tab_size,
- struct in_addr addr,
- int max_lookup)
+int
+zclient_lookup_nexthop (struct pim_zlookup_nexthop nexthop_tab[],
+ const int tab_size,
+ struct in_addr addr,
+ int max_lookup)
{
int lookup;
uint32_t route_metric = 0xFFFFFFFF;
uint8_t protocol_distance = 0xFF;
+ qpim_nexthop_lookups++;
+
for (lookup = 0; lookup < max_lookup; ++lookup) {
int num_ifindex;
int first_ifindex;
- struct in_addr nexthop_addr;
+ struct prefix nexthop_addr;
- num_ifindex = zclient_lookup_nexthop_once(qpim_zclient_lookup, nexthop_tab,
- PIM_NEXTHOP_IFINDEX_TAB_SIZE, addr);
+ num_ifindex = zclient_lookup_nexthop_once(nexthop_tab,
+ tab_size, addr);
if (num_ifindex < 1) {
if (PIM_DEBUG_ZEBRA) {
- char addr_str[100];
+ char addr_str[INET_ADDRSTRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
zlog_debug("%s %s: lookup=%d/%d: could not find nexthop ifindex for address %s",
__FILE__, __PRETTY_FUNCTION__,
}
/*
- FIXME: Non-recursive nexthop ensured only for first ifindex.
- However, recursive route lookup should really be fixed in zebra daemon.
- See also TODO T24.
+ * FIXME: Non-recursive nexthop ensured only for first ifindex.
+ * However, recursive route lookup should really be fixed in zebra daemon.
+ * See also TODO T24.
+ *
+ * So Zebra for NEXTHOP_TYPE_IPV4 returns the ifindex now since
+ * it was being stored. This Doesn't solve all cases of
+ * recursive lookup but for the most common types it does.
*/
first_ifindex = nexthop_tab[0].ifindex;
nexthop_addr = nexthop_tab[0].nexthop_addr;
if (lookup > 0) {
/* Report non-recursive success after first lookup */
if (PIM_DEBUG_ZEBRA) {
- char addr_str[100];
+ char addr_str[INET_ADDRSTRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
zlog_debug("%s %s: lookup=%d/%d: found non-recursive ifindex=%d for address %s dist=%d met=%d",
__FILE__, __PRETTY_FUNCTION__,
}
/* use last address as nexthop address */
- nexthop_tab[0].nexthop_addr = addr;
+ nexthop_tab[0].nexthop_addr.u.prefix4 = addr;
/* report original route metric/distance */
nexthop_tab[0].route_metric = route_metric;
}
if (PIM_DEBUG_ZEBRA) {
- char addr_str[100];
- char nexthop_str[100];
+ char addr_str[INET_ADDRSTRLEN];
+ char nexthop_str[PREFIX_STRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
- pim_inet4_dump("<nexthop?>", nexthop_addr, nexthop_str, sizeof(nexthop_str));
+ pim_addr_dump("<nexthop?>", &nexthop_addr, nexthop_str, sizeof(nexthop_str));
zlog_debug("%s %s: lookup=%d/%d: zebra returned recursive nexthop %s for address %s dist=%d met=%d",
__FILE__, __PRETTY_FUNCTION__,
lookup, max_lookup, nexthop_str, addr_str,
nexthop_tab[0].route_metric);
}
- addr = nexthop_addr; /* use nexthop addr for recursive lookup */
+ addr = nexthop_addr.u.prefix4; /* use nexthop addr for recursive lookup */
} /* for (max_lookup) */
if (PIM_DEBUG_ZEBRA) {
- char addr_str[100];
+ char addr_str[INET_ADDRSTRLEN];
pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str));
zlog_warn("%s %s: lookup=%d/%d: failure searching recursive nexthop ifindex for address %s",
__FILE__, __PRETTY_FUNCTION__,
return -2;
}
+
+void
+pim_zlookup_show_ip_multicast (struct vty *vty)
+{
+ vty_out(vty, "Zclient lookup socket: ");
+ if (zlookup) {
+ vty_out(vty, "%d failures=%d%s", zlookup->sock,
+ zlookup->fail, VTY_NEWLINE);
+ }
+ else {
+ vty_out(vty, "<null zclient>%s", VTY_NEWLINE);
+ }
+}
+
+int
+pim_zlookup_sg_statistics (struct channel_oil *c_oil)
+{
+ struct stream *s = zlookup->obuf;
+ uint16_t command = 0;
+ unsigned long long lastused;
+ struct prefix_sg sg;
+ int count = 0;
+ int ret;
+ struct interface *ifp = pim_if_find_by_vif_index (c_oil->oil.mfcc_parent);
+
+ if (PIM_DEBUG_ZEBRA)
+ {
+ struct prefix_sg more;
+
+ more.src = c_oil->oil.mfcc_origin;
+ more.grp = c_oil->oil.mfcc_mcastgrp;
+ zlog_debug ("Sending Request for New Channel Oil Information(%s) VIIF %d",
+ pim_str_sg_dump (&more), c_oil->oil.mfcc_parent);
+ }
+
+ if (!ifp)
+ return -1;
+
+ stream_reset (s);
+ zclient_create_header (s, ZEBRA_IPMR_ROUTE_STATS, VRF_DEFAULT);
+ stream_put_in_addr (s, &c_oil->oil.mfcc_origin);
+ stream_put_in_addr (s, &c_oil->oil.mfcc_mcastgrp);
+ stream_putl (s, ifp->ifindex);
+ stream_putw_at(s, 0, stream_get_endp(s));
+
+ count = stream_get_endp (s);
+ ret = writen (zlookup->sock, s->data, count);
+ if (ret <= 0)
+ {
+ zlog_err("%s %s: writen() failure: %d writing to zclient lookup socket",
+ __FILE__, __PRETTY_FUNCTION__, errno);
+ return -1;
+ }
+
+ s = zlookup->ibuf;
+
+ while (command != ZEBRA_IPMR_ROUTE_STATS)
+ {
+ int err;
+ uint16_t length = 0;
+ vrf_id_t vrf_id;
+ u_char marker;
+ u_char version;
+
+ stream_reset (s);
+ err = zclient_read_header (s, zlookup->sock, &length, &marker, &version,
+ &vrf_id, &command);
+ if (err < 0)
+ {
+ zlog_err ("%s %s: zclient_read_header() failed",
+ __FILE__, __PRETTY_FUNCTION__);
+ zclient_lookup_failed(zlookup);
+ return -1;
+ }
+ }
+
+ sg.src.s_addr = stream_get_ipv4 (s);
+ sg.grp.s_addr = stream_get_ipv4 (s);
+ if (sg.src.s_addr != c_oil->oil.mfcc_origin.s_addr ||
+ sg.grp.s_addr != c_oil->oil.mfcc_mcastgrp.s_addr)
+ {
+ zlog_err ("%s: Received wrong %s information",
+ __PRETTY_FUNCTION__, pim_str_sg_dump (&sg));
+ zclient_lookup_failed (zlookup);
+ return -3;
+ }
+
+ stream_get (&lastused, s, sizeof (lastused));
+ ret = stream_getl (s);
+
+ if (PIM_DEBUG_ZEBRA)
+ zlog_debug ("Received %lld for %s success: %d", lastused, pim_str_sg_dump (&sg), ret);
+
+ c_oil->cc.lastused = lastused;
+
+ return 0;
+
+}
projects / mirror_frr.git / blobdiff