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[IPV6] address: Add put_cacheinfo() to dump struct cacheinfo 

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2006-09-18 00:11:24 -07:00 committed by David S. Miller
parent 1b29fc2c8b
commit 85486af00b
1 changed files with 38 additions and 34 deletions
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72
net/ipv6/addrconf.c
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@ -3000,6 +3000,21 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
preferred_lft, valid_lft);
}
static int put_cacheinfo(struct sk_buff *skb, unsigned long cstamp,
unsigned long tstamp, u32 preferred, u32 valid)
{
struct ifa_cacheinfo ci;
ci.cstamp = (u32)(TIME_DELTA(cstamp, INITIAL_JIFFIES) / HZ * 100
+ TIME_DELTA(cstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
ci.tstamp = (u32)(TIME_DELTA(tstamp, INITIAL_JIFFIES) / HZ * 100
+ TIME_DELTA(tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
ci.ifa_prefered = preferred;
ci.ifa_valid = valid;
return nla_put(skb, IFA_CACHEINFO, sizeof(ci), &ci);
}
/* Maximum length of ifa_cacheinfo attributes */
#define INET6_IFADDR_RTA_SPACE \
RTA_SPACE(16) /* IFA_ADDRESS */ + \
@ -3010,8 +3025,8 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
{
struct ifaddrmsg *ifm;
struct nlmsghdr *nlh;
struct ifa_cacheinfo ci;
unsigned char *b = skb->tail;
u32 preferred, valid;
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
ifm = NLMSG_DATA(nlh);
@ -3028,23 +3043,22 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
ifm->ifa_index = ifa->idev->dev->ifindex;
RTA_PUT(skb, IFA_ADDRESS, 16, &ifa->addr);
if (!(ifa->flags&IFA_F_PERMANENT)) {
ci.ifa_prefered = ifa->prefered_lft;
ci.ifa_valid = ifa->valid_lft;
if (ci.ifa_prefered != INFINITY_LIFE_TIME) {
preferred = ifa->prefered_lft;
valid = ifa->valid_lft;
if (preferred != INFINITY_LIFE_TIME) {
long tval = (jiffies - ifa->tstamp)/HZ;
ci.ifa_prefered -= tval;
if (ci.ifa_valid != INFINITY_LIFE_TIME)
ci.ifa_valid -= tval;
preferred -= tval;
if (valid != INFINITY_LIFE_TIME)
valid -= tval;
}
} else {
ci.ifa_prefered = INFINITY_LIFE_TIME;
ci.ifa_valid = INFINITY_LIFE_TIME;
preferred = INFINITY_LIFE_TIME;
valid = INFINITY_LIFE_TIME;
}
ci.cstamp = (__u32)(TIME_DELTA(ifa->cstamp, INITIAL_JIFFIES) / HZ * 100
+ TIME_DELTA(ifa->cstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
ci.tstamp = (__u32)(TIME_DELTA(ifa->tstamp, INITIAL_JIFFIES) / HZ * 100
+ TIME_DELTA(ifa->tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ);
RTA_PUT(skb, IFA_CACHEINFO, sizeof(ci), &ci);
if (put_cacheinfo(skb, ifa->cstamp, ifa->tstamp, preferred, valid) < 0)
goto rtattr_failure;
nlh->nlmsg_len = skb->tail - b;
return skb->len;
@ -3059,7 +3073,6 @@ static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca,
{
struct ifaddrmsg *ifm;
struct nlmsghdr *nlh;
struct ifa_cacheinfo ci;
unsigned char *b = skb->tail;
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
@ -3072,15 +3085,11 @@ static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca,
ifm->ifa_scope = RT_SCOPE_SITE;
ifm->ifa_index = ifmca->idev->dev->ifindex;
RTA_PUT(skb, IFA_MULTICAST, 16, &ifmca->mca_addr);
ci.cstamp = (__u32)(TIME_DELTA(ifmca->mca_cstamp, INITIAL_JIFFIES) / HZ
* 100 + TIME_DELTA(ifmca->mca_cstamp, INITIAL_JIFFIES) % HZ
* 100 / HZ);
ci.tstamp = (__u32)(TIME_DELTA(ifmca->mca_tstamp, INITIAL_JIFFIES) / HZ
* 100 + TIME_DELTA(ifmca->mca_tstamp, INITIAL_JIFFIES) % HZ
* 100 / HZ);
ci.ifa_prefered = INFINITY_LIFE_TIME;
ci.ifa_valid = INFINITY_LIFE_TIME;
RTA_PUT(skb, IFA_CACHEINFO, sizeof(ci), &ci);
if (put_cacheinfo(skb, ifmca->mca_cstamp, ifmca->mca_tstamp,
INFINITY_LIFE_TIME, INFINITY_LIFE_TIME) < 0)
goto rtattr_failure;
nlh->nlmsg_len = skb->tail - b;
return skb->len;
@ -3095,7 +3104,6 @@ static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca,
{
struct ifaddrmsg *ifm;
struct nlmsghdr *nlh;
struct ifa_cacheinfo ci;
unsigned char *b = skb->tail;
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
@ -3108,15 +3116,11 @@ static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca,
ifm->ifa_scope = RT_SCOPE_SITE;
ifm->ifa_index = ifaca->aca_idev->dev->ifindex;
RTA_PUT(skb, IFA_ANYCAST, 16, &ifaca->aca_addr);
ci.cstamp = (__u32)(TIME_DELTA(ifaca->aca_cstamp, INITIAL_JIFFIES) / HZ
* 100 + TIME_DELTA(ifaca->aca_cstamp, INITIAL_JIFFIES) % HZ
* 100 / HZ);
ci.tstamp = (__u32)(TIME_DELTA(ifaca->aca_tstamp, INITIAL_JIFFIES) / HZ
* 100 + TIME_DELTA(ifaca->aca_tstamp, INITIAL_JIFFIES) % HZ
* 100 / HZ);
ci.ifa_prefered = INFINITY_LIFE_TIME;
ci.ifa_valid = INFINITY_LIFE_TIME;
RTA_PUT(skb, IFA_CACHEINFO, sizeof(ci), &ci);
if (put_cacheinfo(skb, ifaca->aca_cstamp, ifaca->aca_tstamp,
INFINITY_LIFE_TIME, INFINITY_LIFE_TIME) < 0)
goto rtattr_failure;
nlh->nlmsg_len = skb->tail - b;
return skb->len;