From: Shirley Ma <mashirle@us.ibm.com>
To: "David S. Miller" <davem@redhat.com>
Cc: kuznet@ms2.inr.ac.ru, netdev@oss.sgi.com
Subject: Re: [PATCH] New Patch Implementation for IPv6 MIB:ipv6InterfaceTable
Date: Mon, 20 Oct 2003 16:00:09 -0700 [thread overview]
Message-ID: <200310201600.10016.mashirle@us.ibm.com> (raw)
In-Reply-To: <20031014152441.1be6b336.davem@redhat.com>
This is the new patch for IPv6 MIBs:ipv6InterfaceTable.
This patch has been tested against linux-2.6.0-test8 kernel plus xfmr patch.
Please review it.
Thanks
Shirley Ma
Linux Technology Center
====================
diff -urN linux-2.6.0-test8/include/linux/rtnetlink.h linux-2.6.0-test8-ipv6mib1/include/linux/rtnetlink.h
--- linux-2.6.0-test8/include/linux/rtnetlink.h 2003-10-17 14:43:24.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/include/linux/rtnetlink.h 2003-10-20 12:52:29.000000000 -0700
@@ -557,9 +557,18 @@
IFLA_INET6_CONF, /* sysctl parameters */
IFLA_INET6_STATS, /* statistics */
IFLA_INET6_MCAST, /* MC things. What of them? */
+ IFLA_INET6_CACHEINFO, /* time values and max reasm size */
};
-#define IFLA_INET6_MAX IFLA_INET6_MCAST
+struct ifla_cacheinfo
+{
+ __u32 max_reasm_len;
+ __u32 tstamp; /* ipv6InterfaceTable updated timestamp */
+ __u32 reachable_time;
+ __u32 retrans_time;
+};
+
+#define IFLA_INET6_MAX IFLA_INET6_CACHEINFO
/*****************************************************************
* Traffic control messages.
@@ -610,6 +619,7 @@
#define RTMGRP_IPV6_IFADDR 0x100
#define RTMGRP_IPV6_MROUTE 0x200
#define RTMGRP_IPV6_ROUTE 0x400
+#define RTMGRP_IPV6_IFINFO 0x800
#define RTMGRP_DECnet_IFADDR 0x1000
#define RTMGRP_DECnet_ROUTE 0x4000
diff -urN linux-2.6.0-test8/include/net/if_inet6.h linux-2.6.0-test8-ipv6mib1/include/net/if_inet6.h
--- linux-2.6.0-test8/include/net/if_inet6.h 2003-10-17 14:43:34.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/include/net/if_inet6.h 2003-10-20 12:52:29.000000000 -0700
@@ -181,6 +181,7 @@
struct inet6_dev *next;
struct ipv6_devconf cnf;
struct ipv6_devstat stats;
+ unsigned long tstamp; /* ipv6InterfaceTable update timestamp */
};
extern struct ipv6_devconf ipv6_devconf;
diff -urN linux-2.6.0-test8/include/net/ndisc.h linux-2.6.0-test8-ipv6mib1/include/net/ndisc.h
--- linux-2.6.0-test8/include/net/ndisc.h 2003-10-17 14:43:24.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/include/net/ndisc.h 2003-10-20 12:52:29.000000000 -0700
@@ -98,6 +98,17 @@
extern void igmp6_cleanup(void);
+#ifdef CONFIG_SYSCTL
+extern int ndisc_ifinfo_sysctl_change(ctl_table *ctl,
+ int write,
+ struct file * filp,
+ void __user *buffer,
+ size_t *lenp);
+#endif
+
+extern void inet6_ifinfo_notify(int event,
+ struct inet6_dev *idev);
+
static inline struct neighbour * ndisc_get_neigh(struct net_device *dev, struct in6_addr *addr)
{
diff -urN linux-2.6.0-test8/include/net/neighbour.h linux-2.6.0-test8-ipv6mib1/include/net/neighbour.h
--- linux-2.6.0-test8/include/net/neighbour.h 2003-10-17 14:43:34.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/include/net/neighbour.h 2003-10-20 14:39:37.000000000 -0700
@@ -47,6 +47,7 @@
#include <linux/skbuff.h>
#include <linux/err.h>
+#include <linux/sysctl.h>
#define NUD_IN_TIMER (NUD_INCOMPLETE|NUD_DELAY|NUD_PROBE)
#define NUD_VALID (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE|NUD_PROBE|NUD_STALE|NUD_DELAY)
@@ -206,8 +207,11 @@
extern int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
extern void neigh_app_ns(struct neighbour *n);
-extern int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
- int p_id, int pdev_id, char *p_name);
+extern int neigh_sysctl_register(struct net_device *dev,
+ struct neigh_parms *p,
+ int p_id, int pdev_id,
+ char *p_name,
+ proc_handler *proc_handler);
extern void neigh_sysctl_unregister(struct neigh_parms *p);
/*
diff -urN linux-2.6.0-test8/net/core/neighbour.c linux-2.6.0-test8-ipv6mib1/net/core/neighbour.c
--- linux-2.6.0-test8/net/core/neighbour.c 2003-10-17 14:42:53.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/net/core/neighbour.c 2003-10-20 12:52:29.000000000 -0700
@@ -1625,7 +1625,8 @@
};
int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
- int p_id, int pdev_id, char *p_name)
+ int p_id, int pdev_id, char *p_name,
+ proc_handler *handler)
{
struct neigh_sysctl_table *t = kmalloc(sizeof(*t), GFP_KERNEL);
@@ -1636,6 +1637,10 @@
t->neigh_vars[1].data = &p->ucast_probes;
t->neigh_vars[2].data = &p->app_probes;
t->neigh_vars[3].data = &p->retrans_time;
+ if (handler) {
+ t->neigh_vars[3].proc_handler = handler;
+ t->neigh_vars[3].extra1 = dev;
+ }
t->neigh_vars[4].data = &p->base_reachable_time;
t->neigh_vars[5].data = &p->delay_probe_time;
t->neigh_vars[6].data = &p->gc_staletime;
diff -urN linux-2.6.0-test8/net/ipv4/arp.c linux-2.6.0-test8-ipv6mib1/net/ipv4/arp.c
--- linux-2.6.0-test8/net/ipv4/arp.c 2003-10-17 14:43:26.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/net/ipv4/arp.c 2003-10-20 12:52:29.000000000 -0700
@@ -1122,7 +1122,7 @@
arp_proc_init();
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(NULL, &arp_tbl.parms, NET_IPV4,
- NET_IPV4_NEIGH, "ipv4");
+ NET_IPV4_NEIGH, "ipv4", NULL);
#endif
register_netdevice_notifier(&arp_netdev_notifier);
}
diff -urN linux-2.6.0-test8/net/ipv4/devinet.c linux-2.6.0-test8-ipv6mib1/net/ipv4/devinet.c
--- linux-2.6.0-test8/net/ipv4/devinet.c 2003-10-17 14:42:56.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/net/ipv4/devinet.c 2003-10-20 12:52:29.000000000 -0700
@@ -155,7 +155,7 @@
dev_hold(dev);
#ifdef CONFIG_SYSCTL
neigh_sysctl_register(dev, in_dev->arp_parms, NET_IPV4,
- NET_IPV4_NEIGH, "ipv4");
+ NET_IPV4_NEIGH, "ipv4", NULL);
#endif
write_lock_bh(&inetdev_lock);
dev->ip_ptr = in_dev;
diff -urN linux-2.6.0-test8/net/ipv6/addrconf.c linux-2.6.0-test8-ipv6mib1/net/ipv6/addrconf.c
--- linux-2.6.0-test8/net/ipv6/addrconf.c 2003-10-17 14:43:33.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/net/ipv6/addrconf.c 2003-10-20 15:36:54.000000000 -0700
@@ -373,9 +373,10 @@
write_unlock_bh(&addrconf_lock);
ipv6_mc_init_dev(ndev);
-
+ ndev->tstamp = jiffies;
#ifdef CONFIG_SYSCTL
- neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6, NET_IPV6_NEIGH, "ipv6");
+ neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6,
+ NET_IPV6_NEIGH, "ipv6", &ndisc_ifinfo_sysctl_change);
addrconf_sysctl_register(ndev, &ndev->cnf);
#endif
}
@@ -1854,6 +1855,8 @@
rt6_mtu_change(dev, dev->mtu);
idev->cnf.mtu6 = dev->mtu;
}
+ idev->tstamp = jiffies;
+ inet6_ifinfo_notify(RTM_NEWLINK, idev);
/* If the changed mtu during down is lower than IPV6_MIN_MTU
stop IPv6 on this interface.
*/
@@ -1972,7 +1975,10 @@
ipv6_mc_destroy_dev(idev);
else
ipv6_mc_down(idev);
-
+ /* Step 5: netlink notification of this interface */
+ idev->tstamp = jiffies;
+ inet6_ifinfo_notify(RTM_NEWLINK, idev);
+
/* Shot the device (if unregistered) */
if (how == 1) {
@@ -2673,17 +2679,19 @@
#endif
}
-static int inet6_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
- struct inet6_dev *idev,
- int type, u32 pid, u32 seq)
+static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
+ u32 pid, u32 seq, int event)
{
+ struct net_device *dev = idev->dev;
__s32 *array = NULL;
struct ifinfomsg *r;
struct nlmsghdr *nlh;
unsigned char *b = skb->tail;
struct rtattr *subattr;
+ __u32 mtu = dev->mtu;
+ struct ifla_cacheinfo ci;
- nlh = NLMSG_PUT(skb, pid, seq, type, sizeof(*r));
+ nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*r));
if (pid) nlh->nlmsg_flags |= NLM_F_MULTI;
r = NLMSG_DATA(nlh);
r->ifi_family = AF_INET6;
@@ -2698,6 +2706,13 @@
RTA_PUT(skb, IFLA_IFNAME, strlen(dev->name)+1, dev->name);
+ if (dev->addr_len)
+ RTA_PUT(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr);
+
+ RTA_PUT(skb, IFLA_MTU, sizeof(mtu), &mtu);
+ if (dev->ifindex != dev->iflink)
+ RTA_PUT(skb, IFLA_LINK, sizeof(int), &dev->iflink);
+
subattr = (struct rtattr*)skb->tail;
RTA_PUT(skb, IFLA_PROTINFO, 0, NULL);
@@ -2705,6 +2720,14 @@
/* return the device flags */
RTA_PUT(skb, IFLA_INET6_FLAGS, sizeof(__u32), &idev->if_flags);
+ /* return interface cacheinfo */
+ ci.max_reasm_len = IPV6_MAXPLEN;
+ ci.tstamp = (__u32)(TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) / HZ * 100
+ + TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
+ ci.reachable_time = idev->nd_parms->reachable_time;
+ ci.retrans_time = idev->nd_parms->retrans_time;
+ RTA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci);
+
/* return the device sysctl params */
if ((array = kmalloc(DEVCONF_MAX * sizeof(*array), GFP_ATOMIC)) == NULL)
goto rtattr_failure;
@@ -2739,8 +2762,8 @@
continue;
if ((idev = in6_dev_get(dev)) == NULL)
continue;
- err = inet6_fill_ifinfo(skb, dev, idev, RTM_NEWLINK,
- NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq);
+ err = inet6_fill_ifinfo(skb, idev, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, RTM_NEWLINK);
in6_dev_put(idev);
if (err <= 0)
break;
@@ -2751,6 +2774,26 @@
return skb->len;
}
+void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
+{
+ struct sk_buff *skb;
+ /* 128 bytes ?? */
+ int size = NLMSG_SPACE(sizeof(struct ifinfomsg)+128);
+
+ skb = alloc_skb(size, GFP_ATOMIC);
+ if (!skb) {
+ netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFINFO, ENOBUFS);
+ return;
+ }
+ if (inet6_fill_ifinfo(skb, idev, 0, 0, event) < 0) {
+ kfree_skb(skb);
+ netlink_set_err(rtnl, 0, RTMGRP_IPV6_IFINFO, EINVAL);
+ return;
+ }
+ NETLINK_CB(skb).dst_groups = RTMGRP_IPV6_IFINFO;
+ netlink_broadcast(rtnl, skb, 0, RTMGRP_IPV6_IFINFO, GFP_ATOMIC);
+}
+
static struct rtnetlink_link inet6_rtnetlink_table[RTM_MAX - RTM_BASE + 1] = {
[RTM_GETLINK - RTM_BASE] = { .dumpit = inet6_dump_ifinfo, },
[RTM_NEWADDR - RTM_BASE] = { .doit = inet6_rtm_newaddr, },
diff -urN linux-2.6.0-test8/net/ipv6/ndisc.c linux-2.6.0-test8-ipv6mib1/net/ipv6/ndisc.c
--- linux-2.6.0-test8/net/ipv6/ndisc.c 2003-10-17 14:43:18.000000000 -0700
+++ linux-2.6.0-test8-ipv6mib1/net/ipv6/ndisc.c 2003-10-20 15:36:27.000000000 -0700
@@ -1109,6 +1109,8 @@
if (rtime < HZ/10)
rtime = HZ/10;
in6_dev->nd_parms->retrans_time = rtime;
+ in6_dev->tstamp = jiffies;
+ inet6_ifinfo_notify(RTM_NEWLINK, in6_dev);
}
rtime = ntohl(ra_msg->reachable_time);
@@ -1122,6 +1124,8 @@
in6_dev->nd_parms->base_reachable_time = rtime;
in6_dev->nd_parms->gc_staletime = 3 * rtime;
in6_dev->nd_parms->reachable_time = neigh_rand_reach_time(rtime);
+ in6_dev->tstamp = jiffies;
+ inet6_ifinfo_notify(RTM_NEWLINK, in6_dev);
}
}
}
@@ -1487,6 +1491,21 @@
.notifier_call = ndisc_netdev_event,
};
+#ifdef CONFIG_SYSCTL
+int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write, struct file * filp, void __user *buffer, size_t *lenp)
+{
+ struct net_device *dev = ctl->extra1;
+ struct inet6_dev *idev;
+
+ if (write && dev && (idev = in6_dev_get(dev)) != NULL) {
+ idev->tstamp = jiffies;
+ inet6_ifinfo_notify(RTM_NEWLINK, idev);
+ in6_dev_put(idev);
+ }
+ return proc_dointvec(ctl, write, filp, buffer, lenp);
+}
+#endif
+
int __init ndisc_init(struct net_proto_family *ops)
{
struct ipv6_pinfo *np;
@@ -1517,7 +1536,8 @@
neigh_table_init(&nd_tbl);
#ifdef CONFIG_SYSCTL
- neigh_sysctl_register(NULL, &nd_tbl.parms, NET_IPV6, NET_IPV6_NEIGH, "ipv6");
+ neigh_sysctl_register(NULL, &nd_tbl.parms, NET_IPV6, NET_IPV6_NEIGH,
+ "ipv6", &ndisc_ifinfo_sysctl_change);
#endif
register_netdevice_notifier(&ndisc_netdev_notifier);
next prev parent reply other threads:[~2003-10-20 23:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-14 17:32 [PATCH]Implementation for IPv6 MIB:ipv6InterfaceTable Shirley Ma
2003-10-14 22:24 ` David S. Miller
2003-10-20 23:00 ` Shirley Ma [this message]
2003-10-20 23:43 ` [PATCH] New Patch Implementation " Shirley Ma
2003-10-21 4:04 ` David S. Miller
2004-01-14 22:48 ` Shirley Ma
2004-01-15 8:55 ` David S. Miller
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