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zebra: Remove unused variable.

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Remove the rtnh variable since it is unused.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-08-03 19:53:42 -04:00
parent e921929069
commit 03549ced74
2 changed files with 83 additions and 31 deletions
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4
zebra/kernel_netlink.c
View File

@ -91,6 +91,7 @@ static const struct message rtproto_str[] = {
#ifdef RTPROT_BIRD
{RTPROT_BIRD, "BIRD"},
#endif /* RTPROT_BIRD */
{RTPROT_MROUTED, "mroute"},
{0, NULL}
};
@ -718,7 +719,8 @@ kernel_init (struct zebra_ns *zns)
/* Initialize netlink sockets */
groups = RTMGRP_LINK | RTMGRP_IPV4_ROUTE | RTMGRP_IPV4_IFADDR |
RTMGRP_IPV6_ROUTE | RTMGRP_IPV6_IFADDR;
RTMGRP_IPV6_ROUTE | RTMGRP_IPV6_IFADDR |
RTMGRP_IPV4_MROUTE;
snprintf (zns->netlink.name, sizeof (zns->netlink.name),
"netlink-listen (NS %u)", zns->ns_id);

110
zebra/rt_netlink.c
View File

@ -303,9 +303,17 @@ netlink_routing_table (struct sockaddr_nl *snl, struct nlmsghdr *h,
return 0;
}
static const struct message family_str[] = {
{AF_INET, "ipv4"},
{AF_INET6, "ipv6"},
{RTNL_FAMILY_IPMR, "ipv4MR"},
{RTNL_FAMILY_IP6MR, "ipv6MR"},
{0, NULL},
};
/* Routing information change from the kernel. */
int
netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
static int
netlink_route_change_read_unicast (struct sockaddr_nl *snl, struct nlmsghdr *h,
ns_id_t ns_id)
{
int len;
@ -327,35 +335,7 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
rtm = NLMSG_DATA (h);
if (!(h->nlmsg_type == RTM_NEWROUTE || h->nlmsg_type == RTM_DELROUTE))
{
/* If this is not route add/delete message print warning. */
zlog_warn ("Kernel message: %d", h->nlmsg_type);
return 0;
}
/* Connected route. */
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s %s %s proto %s",
h->nlmsg_type ==
RTM_NEWROUTE ? "RTM_NEWROUTE" : "RTM_DELROUTE",
rtm->rtm_family == AF_INET ? "ipv4" : "ipv6",
rtm->rtm_type == RTN_UNICAST ? "unicast" : "multicast",
nl_rtproto_to_str (rtm->rtm_protocol));
if (rtm->rtm_type != RTN_UNICAST)
{
return 0;
}
/* We don't care about change notifications for the MPLS table. */
/* TODO: Revisit this. */
if (rtm->rtm_family == AF_MPLS)
return 0;
len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
if (len < 0)
return -1;
memset (tb, 0, sizeof tb);
netlink_parse_rtattr (tb, RTA_MAX, RTM_RTA (rtm), len);
@ -544,6 +524,76 @@ netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
return 0;
}
static int
netlink_route_change_read_multicast (struct sockaddr_nl *snl, struct nlmsghdr *h,
ns_id_t ns_id)
{
int len;
struct rtmsg *rtm;
struct rtattr *tb[RTA_MAX + 1];
rtm = NLMSG_DATA (h);
len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
memset (tb, 0, sizeof tb);
netlink_parse_rtattr (tb, RTA_MAX, RTM_RTA (rtm), len);
return 0;
}
int
netlink_route_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
ns_id_t ns_id)
{
int len;
vrf_id_t vrf_id = ns_id;
struct rtmsg *rtm;
rtm = NLMSG_DATA (h);
if (!(h->nlmsg_type == RTM_NEWROUTE || h->nlmsg_type == RTM_DELROUTE))
{
/* If this is not route add/delete message print warning. */
zlog_warn ("Kernel message: %d vrf %u\n", h->nlmsg_type, vrf_id);
return 0;
}
/* Connected route. */
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s %s %s proto %s vrf %u",
h->nlmsg_type ==
RTM_NEWROUTE ? "RTM_NEWROUTE" : "RTM_DELROUTE",
lookup (family_str, rtm->rtm_family),
rtm->rtm_type == RTN_UNICAST ? "unicast" : "multicast",
nl_rtproto_to_str (rtm->rtm_protocol),
vrf_id);
/* We don't care about change notifications for the MPLS table. */
/* TODO: Revisit this. */
if (rtm->rtm_family == AF_MPLS)
return 0;
len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
if (len < 0)
return -1;
switch (rtm->rtm_type)
{
case RTN_UNICAST:
netlink_route_change_read_unicast (snl, h, ns_id);
break;
case RTN_MULTICAST:
netlink_route_change_read_multicast (snl, h, ns_id);
break;
default:
return 0;
break;
}
return 0;
}
/* Routing table read function using netlink interface. Only called
bootstrap time. */
int