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Diffstat (limited to 'net/ipv4/fib_semantics.c')
-rw-r--r--net/ipv4/fib_semantics.c98
1 files changed, 4 insertions, 94 deletions
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 5537016d2..36c801e8c 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -5,7 +5,7 @@
*
* IPv4 Forwarding Information Base: semantics.
*
- * Version: $Id: fib_semantics.c,v 1.9 1998/06/11 03:15:41 davem Exp $
+ * Version: $Id: fib_semantics.c,v 1.10 1998/08/26 12:03:32 davem Exp $
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
@@ -181,7 +181,6 @@ static u32 fib_get_attr32(struct rtattr *attr, int attrlen, int type)
return 0;
}
-#ifndef CONFIG_RTNL_OLD_IFINFO
static int
fib_count_nexthops(struct rtattr *rta)
{
@@ -189,7 +188,7 @@ fib_count_nexthops(struct rtattr *rta)
struct rtnexthop *nhp = RTA_DATA(rta);
int nhlen = RTA_PAYLOAD(rta);
- while (nhlen >= sizeof(struct rtnexthop)) {
+ while (nhlen >= (int)sizeof(struct rtnexthop)) {
if ((nhlen -= nhp->rtnh_len) < 0)
return 0;
nhs++;
@@ -197,21 +196,12 @@ fib_count_nexthops(struct rtattr *rta)
};
return nhs;
}
-#endif
-#ifdef CONFIG_RTNL_OLD_IFINFO
-static int
-fib_get_nhs(struct fib_info *fi, const struct nlmsghdr *nlh, const struct rtmsg *r)
-{
- struct rtnexthop *nhp = RTM_RTNH(r);
- int nhlen = RTM_NHLEN(nlh, r);
-#else
static int
fib_get_nhs(struct fib_info *fi, const struct rtattr *rta, const struct rtmsg *r)
{
struct rtnexthop *nhp = RTA_DATA(rta);
int nhlen = RTA_PAYLOAD(rta);
-#endif
change_nexthops(fi) {
int attrlen = nhlen - sizeof(struct rtnexthop);
@@ -249,18 +239,10 @@ int fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct kern_rta *rta,
}
#ifdef CONFIG_IP_ROUTE_MULTIPATH
-#ifdef CONFIG_RTNL_OLD_IFINFO
- if (r->rtm_nhs == 0)
- return 0;
-
- nhp = RTM_RTNH(r);
- nhlen = RTM_NHLEN(nlh, r);
-#else
if (rta->rta_mp == NULL)
return 0;
nhp = RTA_DATA(rta->rta_mp);
nhlen = RTA_PAYLOAD(rta->rta_mp);
-#endif
for_nexthops(fi) {
int attrlen = nhlen - sizeof(struct rtnexthop);
@@ -397,11 +379,7 @@ fib_create_info(const struct rtmsg *r, struct kern_rta *rta,
struct fib_info *fi = NULL;
struct fib_info *ofi;
#ifdef CONFIG_IP_ROUTE_MULTIPATH
-#ifdef CONFIG_RTNL_OLD_IFINFO
- int nhs = r->rtm_nhs ? : 1;
-#else
int nhs = 1;
-#endif
#else
const int nhs = 1;
#endif
@@ -411,14 +389,12 @@ fib_create_info(const struct rtmsg *r, struct kern_rta *rta,
goto err_inval;
#ifdef CONFIG_IP_ROUTE_MULTIPATH
-#ifndef CONFIG_RTNL_OLD_IFINFO
if (rta->rta_mp) {
nhs = fib_count_nexthops(rta->rta_mp);
if (nhs == 0)
goto err_inval;
}
#endif
-#endif
fi = kmalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL);
err = -ENOBUFS;
@@ -429,14 +405,6 @@ fib_create_info(const struct rtmsg *r, struct kern_rta *rta,
fi->fib_protocol = r->rtm_protocol;
fi->fib_nhs = nhs;
fi->fib_flags = r->rtm_flags;
-#ifdef CONFIG_RTNL_OLD_IFINFO
- if (rta->rta_mtu)
- fi->fib_mtu = *rta->rta_mtu;
- if (rta->rta_rtt)
- fi->fib_rtt = *rta->rta_rtt;
- if (rta->rta_window)
- fi->fib_window = *rta->rta_window;
-#else
if (rta->rta_mx) {
int attrlen = RTA_PAYLOAD(rta->rta_mx);
struct rtattr *attr = RTA_DATA(rta->rta_mx);
@@ -451,21 +419,12 @@ fib_create_info(const struct rtmsg *r, struct kern_rta *rta,
attr = RTA_NEXT(attr, attrlen);
}
}
-#endif
if (rta->rta_prefsrc)
memcpy(&fi->fib_prefsrc, rta->rta_prefsrc, 4);
-#ifndef CONFIG_RTNL_OLD_IFINFO
if (rta->rta_mp) {
-#else
- if (r->rtm_nhs) {
-#endif
#ifdef CONFIG_IP_ROUTE_MULTIPATH
-#ifdef CONFIG_RTNL_OLD_IFINFO
- if ((err = fib_get_nhs(fi, nlh, r)) != 0)
-#else
if ((err = fib_get_nhs(fi, rta->rta_mp, r)) != 0)
-#endif
goto failure;
if (rta->rta_oif && fi->fib_nh->nh_oif != *rta->rta_oif)
goto err_inval;
@@ -504,11 +463,7 @@ fib_create_info(const struct rtmsg *r, struct kern_rta *rta,
#endif
if (fib_props[r->rtm_type].error) {
-#ifndef CONFIG_RTNL_OLD_IFINFO
if (rta->rta_gw || rta->rta_oif || rta->rta_mp)
-#else
- if (rta->rta_gw || rta->rta_oif || r->rtm_nhs)
-#endif
goto err_inval;
goto link_it;
}
@@ -637,16 +592,13 @@ u32 __fib_res_prefsrc(struct fib_result *res)
#ifdef CONFIG_RTNETLINK
int
-fib_dump_info(struct sk_buff *skb, pid_t pid, u32 seq, int event,
+fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
u8 tb_id, u8 type, u8 scope, void *dst, int dst_len, u8 tos,
struct fib_info *fi)
{
struct rtmsg *rtm;
struct nlmsghdr *nlh;
unsigned char *b = skb->tail;
-#ifdef CONFIG_RTNL_OLD_IFINFO
- unsigned char *o;
-#endif
nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*rtm));
rtm = NLMSG_DATA(nlh);
@@ -658,22 +610,9 @@ fib_dump_info(struct sk_buff *skb, pid_t pid, u32 seq, int event,
rtm->rtm_type = type;
rtm->rtm_flags = fi->fib_flags;
rtm->rtm_scope = scope;
-#ifdef CONFIG_RTNL_OLD_IFINFO
- rtm->rtm_nhs = 0;
-
- o = skb->tail;
-#endif
if (rtm->rtm_dst_len)
RTA_PUT(skb, RTA_DST, 4, dst);
rtm->rtm_protocol = fi->fib_protocol;
-#ifdef CONFIG_RTNL_OLD_IFINFO
- if (fi->fib_mtu)
- RTA_PUT(skb, RTA_MTU, sizeof(unsigned), &fi->fib_mtu);
- if (fi->fib_window)
- RTA_PUT(skb, RTA_WINDOW, sizeof(unsigned), &fi->fib_window);
- if (fi->fib_rtt)
- RTA_PUT(skb, RTA_RTT, sizeof(unsigned), &fi->fib_rtt);
-#else
#ifdef CONFIG_NET_CLS_ROUTE
if (fi->fib_nh[0].nh_tclassid)
RTA_PUT(skb, RTA_FLOW, 4, &fi->fib_nh[0].nh_tclassid);
@@ -688,7 +627,6 @@ fib_dump_info(struct sk_buff *skb, pid_t pid, u32 seq, int event,
}
mx->rta_len = skb->tail - (u8*)mx;
}
-#endif
if (fi->fib_prefsrc)
RTA_PUT(skb, RTA_PREFSRC, 4, &fi->fib_prefsrc);
if (fi->fib_nhs == 1) {
@@ -697,18 +635,14 @@ fib_dump_info(struct sk_buff *skb, pid_t pid, u32 seq, int event,
if (fi->fib_nh->nh_oif)
RTA_PUT(skb, RTA_OIF, sizeof(int), &fi->fib_nh->nh_oif);
}
-#ifdef CONFIG_RTNL_OLD_IFINFO
- rtm->rtm_optlen = skb->tail - o;
-#endif
#ifdef CONFIG_IP_ROUTE_MULTIPATH
if (fi->fib_nhs > 1) {
struct rtnexthop *nhp;
-#ifndef CONFIG_RTNL_OLD_IFINFO
struct rtattr *mp_head;
if (skb_tailroom(skb) <= RTA_SPACE(0))
goto rtattr_failure;
mp_head = (struct rtattr*)skb_put(skb, RTA_SPACE(0));
-#endif
+
for_nexthops(fi) {
if (skb_tailroom(skb) < RTA_ALIGN(RTA_ALIGN(sizeof(*nhp)) + 4))
goto rtattr_failure;
@@ -719,14 +653,9 @@ fib_dump_info(struct sk_buff *skb, pid_t pid, u32 seq, int event,
if (nh->nh_gw)
RTA_PUT(skb, RTA_GATEWAY, 4, &nh->nh_gw);
nhp->rtnh_len = skb->tail - (unsigned char*)nhp;
-#ifdef CONFIG_RTNL_OLD_IFINFO
- rtm->rtm_nhs++;
-#endif
} endfor_nexthops(fi);
-#ifndef CONFIG_RTNL_OLD_IFINFO
mp_head->rta_type = RTA_MULTIPATH;
mp_head->rta_len = skb->tail - (u8*)mp_head;
-#endif
}
#endif
nlh->nlmsg_len = skb->tail - b;
@@ -848,24 +777,6 @@ fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm,
if (r->rt_flags&RTF_GATEWAY && rta->rta_gw == NULL)
return -EINVAL;
-#ifdef CONFIG_RTNL_OLD_IFINFO
- /* Ugly conversion from rtentry types to unsigned */
-
- if (r->rt_flags&RTF_IRTT) {
- rta->rta_rtt = (unsigned*)&r->rt_pad3;
- *rta->rta_rtt = r->rt_irtt;
- }
- if (r->rt_flags&RTF_WINDOW) {
- rta->rta_window = (unsigned*)&r->rt_window;
- if (sizeof(*rta->rta_window) != sizeof(r->rt_window))
- *rta->rta_window = r->rt_window;
- }
- if (r->rt_flags&RTF_MTU) {
- rta->rta_mtu = (unsigned*)&r->rt_mtu;
- if (sizeof(*rta->rta_mtu) != sizeof(r->rt_mtu))
- *rta->rta_mtu = r->rt_mtu;
- }
-#else
if (r->rt_flags&(RTF_MTU|RTF_WINDOW|RTF_IRTT)) {
struct rtattr *rec;
struct rtattr *mx = kmalloc(RTA_LENGTH(3*RTA_LENGTH(4)), GFP_KERNEL);
@@ -896,7 +807,6 @@ fib_convert_rtentry(int cmd, struct nlmsghdr *nl, struct rtmsg *rtm,
*(u32*)RTA_DATA(rec) = r->rt_irtt;
}
}
-#endif
return 0;
}