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authorDaniel Walton <dwalton@cumulusnetworks.com>2018-02-26 23:13:22 +0100
committerDaniel Walton <dwalton@cumulusnetworks.com>2018-02-26 23:13:22 +0100
commit194a4f2c5c7f1fd1ea93e97d71bb841ac08947a4 (patch)
tree77d17f24a9f18687b82fce88f471ccad5f61ea1a
parentMerge pull request #1793 from qlyoung/stylechecker (diff)
downloadfrr-194a4f2c5c7f1fd1ea93e97d71bb841ac08947a4.tar.xz
frr-194a4f2c5c7f1fd1ea93e97d71bb841ac08947a4.zip
bgpd: use peer->ifp->ifindex instead of peer->ifindex
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com> peer->ifindex was only used in two places but it was never populated so neither of them worked as they should. 'struct peer' also has a 'struct interface' pointer which we can use to get the ifindex.
-rw-r--r--bgpd/bgp_dump.c4
-rw-r--r--bgpd/bgp_mpath.c23
-rw-r--r--bgpd/bgpd.c1
-rw-r--r--bgpd/bgpd.h1
4 files changed, 24 insertions, 5 deletions
diff --git a/bgpd/bgp_dump.c b/bgpd/bgp_dump.c
index 083136906..4e998b1fd 100644
--- a/bgpd/bgp_dump.c
+++ b/bgpd/bgp_dump.c
@@ -465,7 +465,7 @@ static void bgp_dump_common(struct stream *obuf, struct peer *peer,
}
if (peer->su.sa.sa_family == AF_INET) {
- stream_putw(obuf, peer->ifindex);
+ stream_putw(obuf, peer->ifp ? peer->ifp->ifindex : 0);
stream_putw(obuf, AFI_IP);
stream_put(obuf, &peer->su.sin.sin_addr, IPV4_MAX_BYTELEN);
@@ -477,7 +477,7 @@ static void bgp_dump_common(struct stream *obuf, struct peer *peer,
stream_put(obuf, empty, IPV4_MAX_BYTELEN);
} else if (peer->su.sa.sa_family == AF_INET6) {
/* Interface Index and Address family. */
- stream_putw(obuf, peer->ifindex);
+ stream_putw(obuf, peer->ifp ? peer->ifp->ifindex : 0);
stream_putw(obuf, AFI_IP6);
/* Source IP Address and Destination IP Address. */
diff --git a/bgpd/bgp_mpath.c b/bgpd/bgp_mpath.c
index 9d32c4bee..5d83192a3 100644
--- a/bgpd/bgp_mpath.c
+++ b/bgpd/bgp_mpath.c
@@ -93,6 +93,26 @@ int bgp_maximum_paths_unset(struct bgp *bgp, afi_t afi, safi_t safi,
}
/*
+ * bgp_interface_same
+ *
+ * Return true if ifindex for ifp1 and ifp2 are the same, else return false.
+ */
+static int bgp_interface_same(struct interface *ifp1, struct interface *ifp2)
+{
+ if (!ifp1 && !ifp2)
+ return 1;
+
+ if (!ifp1 && ifp2)
+ return 0;
+
+ if (ifp1 && !ifp2)
+ return 0;
+
+ return (ifp1->ifindex == ifp2->ifindex);
+}
+
+
+/*
* bgp_info_nexthop_cmp
*
* Compare the nexthops of two paths. Return value is less than, equal to,
@@ -130,7 +150,8 @@ int bgp_info_nexthop_cmp(struct bgp_info *bi1, struct bgp_info *bi2)
if (!bi1->attr->mp_nexthop_prefer_global &&
!bi2->attr->mp_nexthop_prefer_global)
- compare = !(bi1->peer->ifindex == bi2->peer->ifindex);
+ compare = !bgp_interface_same(bi1->peer->ifp, bi2->peer->ifp);
+
if (!compare)
compare = IPV6_ADDR_CMP(&addr1, &addr2);
break;
diff --git a/bgpd/bgpd.c b/bgpd/bgpd.c
index 78e748fb6..93493001b 100644
--- a/bgpd/bgpd.c
+++ b/bgpd/bgpd.c
@@ -1200,7 +1200,6 @@ void peer_xfer_config(struct peer *peer_dst, struct peer *peer_src)
peer_dst->config = peer_src->config;
peer_dst->local_as = peer_src->local_as;
- peer_dst->ifindex = peer_src->ifindex;
peer_dst->port = peer_src->port;
(void)peer_sort(peer_dst);
peer_dst->rmap_type = peer_src->rmap_type;
diff --git a/bgpd/bgpd.h b/bgpd/bgpd.h
index 220b6d989..dd0f64f56 100644
--- a/bgpd/bgpd.h
+++ b/bgpd/bgpd.h
@@ -686,7 +686,6 @@ struct peer {
time_t readtime; /* Last read time */
time_t resettime; /* Last reset time */
- ifindex_t ifindex; /* ifindex of the BGP connection. */
char *conf_if; /* neighbor interface config name. */
struct interface *ifp; /* corresponding interface */
char *ifname; /* bind interface name. */