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-rw-r--r--net/decnet/Kconfig8
-rw-r--r--net/decnet/dn_dev.c173
-rw-r--r--net/decnet/dn_neigh.c1
-rw-r--r--net/decnet/dn_nsp_in.c2
-rw-r--r--net/decnet/dn_route.c46
-rw-r--r--net/decnet/dn_rules.c43
-rw-r--r--net/decnet/dn_table.c42
7 files changed, 150 insertions, 165 deletions
diff --git a/net/decnet/Kconfig b/net/decnet/Kconfig
index 36e72cb145b0..7914fd619c5c 100644
--- a/net/decnet/Kconfig
+++ b/net/decnet/Kconfig
@@ -41,11 +41,3 @@ config DECNET_ROUTER
See <file:Documentation/networking/decnet.txt> for more information.
-config DECNET_ROUTE_FWMARK
- bool "DECnet: use FWMARK value as routing key (EXPERIMENTAL)"
- depends on DECNET_ROUTER && NETFILTER
- help
- If you say Y here, you will be able to specify different routes for
- packets with different FWMARK ("firewalling mark") values
- (see ipchains(8), "-m" argument).
-
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 01861feb608d..0b9d4c955154 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -38,7 +38,6 @@
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
-#include <linux/rtnetlink.h>
#include <linux/sysctl.h>
#include <linux/notifier.h>
#include <asm/uaccess.h>
@@ -47,6 +46,7 @@
#include <net/dst.h>
#include <net/flow.h>
#include <net/fib_rules.h>
+#include <net/netlink.h>
#include <net/dn.h>
#include <net/dn_dev.h>
#include <net/dn_route.h>
@@ -73,7 +73,7 @@ static BLOCKING_NOTIFIER_HEAD(dnaddr_chain);
static struct dn_dev *dn_dev_create(struct net_device *dev, int *err);
static void dn_dev_delete(struct net_device *dev);
-static void rtmsg_ifa(int event, struct dn_ifaddr *ifa);
+static void dn_ifaddr_notify(int event, struct dn_ifaddr *ifa);
static int dn_eth_up(struct net_device *);
static void dn_eth_down(struct net_device *);
@@ -255,12 +255,10 @@ static void dn_dev_sysctl_register(struct net_device *dev, struct dn_dev_parms *
struct dn_dev_sysctl_table *t;
int i;
- t = kmalloc(sizeof(*t), GFP_KERNEL);
+ t = kmemdup(&dn_dev_sysctl, sizeof(*t), GFP_KERNEL);
if (t == NULL)
return;
- memcpy(t, &dn_dev_sysctl, sizeof(*t));
-
for(i = 0; i < ARRAY_SIZE(t->dn_dev_vars) - 1; i++) {
long offset = (long)t->dn_dev_vars[i].data;
t->dn_dev_vars[i].data = ((char *)parms) + offset;
@@ -442,7 +440,7 @@ static void dn_dev_del_ifa(struct dn_dev *dn_db, struct dn_ifaddr **ifap, int de
}
}
- rtmsg_ifa(RTM_DELADDR, ifa1);
+ dn_ifaddr_notify(RTM_DELADDR, ifa1);
blocking_notifier_call_chain(&dnaddr_chain, NETDEV_DOWN, ifa1);
if (destroy) {
dn_dev_free_ifa(ifa1);
@@ -477,7 +475,7 @@ static int dn_dev_insert_ifa(struct dn_dev *dn_db, struct dn_ifaddr *ifa)
ifa->ifa_next = dn_db->ifa_list;
dn_db->ifa_list = ifa;
- rtmsg_ifa(RTM_NEWADDR, ifa);
+ dn_ifaddr_notify(RTM_NEWADDR, ifa);
blocking_notifier_call_chain(&dnaddr_chain, NETDEV_UP, ifa);
return 0;
@@ -647,41 +645,62 @@ static struct dn_dev *dn_dev_by_index(int ifindex)
return dn_dev;
}
-static int dn_dev_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static struct nla_policy dn_ifa_policy[IFA_MAX+1] __read_mostly = {
+ [IFA_ADDRESS] = { .type = NLA_U16 },
+ [IFA_LOCAL] = { .type = NLA_U16 },
+ [IFA_LABEL] = { .type = NLA_STRING,
+ .len = IFNAMSIZ - 1 },
+};
+
+static int dn_nl_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct rtattr **rta = arg;
+ struct nlattr *tb[IFA_MAX+1];
struct dn_dev *dn_db;
- struct ifaddrmsg *ifm = NLMSG_DATA(nlh);
+ struct ifaddrmsg *ifm;
struct dn_ifaddr *ifa, **ifap;
+ int err = -EADDRNOTAVAIL;
+
+ err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, dn_ifa_policy);
+ if (err < 0)
+ goto errout;
+ ifm = nlmsg_data(nlh);
if ((dn_db = dn_dev_by_index(ifm->ifa_index)) == NULL)
- return -EADDRNOTAVAIL;
+ goto errout;
+
+ for (ifap = &dn_db->ifa_list; (ifa = *ifap); ifap = &ifa->ifa_next) {
+ if (tb[IFA_LOCAL] &&
+ nla_memcmp(tb[IFA_LOCAL], &ifa->ifa_local, 2))
+ continue;
- for(ifap = &dn_db->ifa_list; (ifa=*ifap) != NULL; ifap = &ifa->ifa_next) {
- void *tmp = rta[IFA_LOCAL-1];
- if ((tmp && memcmp(RTA_DATA(tmp), &ifa->ifa_local, 2)) ||
- (rta[IFA_LABEL-1] && rtattr_strcmp(rta[IFA_LABEL-1], ifa->ifa_label)))
+ if (tb[IFA_LABEL] && nla_strcmp(tb[IFA_LABEL], ifa->ifa_label))
continue;
dn_dev_del_ifa(dn_db, ifap, 1);
return 0;
}
- return -EADDRNOTAVAIL;
+errout:
+ return err;
}
-static int dn_dev_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
+static int dn_nl_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct rtattr **rta = arg;
+ struct nlattr *tb[IFA_MAX+1];
struct net_device *dev;
struct dn_dev *dn_db;
- struct ifaddrmsg *ifm = NLMSG_DATA(nlh);
+ struct ifaddrmsg *ifm;
struct dn_ifaddr *ifa;
- int rv;
+ int err;
- if (rta[IFA_LOCAL-1] == NULL)
+ err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, dn_ifa_policy);
+ if (err < 0)
+ return err;
+
+ if (tb[IFA_LOCAL] == NULL)
return -EINVAL;
+ ifm = nlmsg_data(nlh);
if ((dev = __dev_get_by_index(ifm->ifa_index)) == NULL)
return -ENODEV;
@@ -695,69 +714,77 @@ static int dn_dev_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *a
if ((ifa = dn_dev_alloc_ifa()) == NULL)
return -ENOBUFS;
- if (!rta[IFA_ADDRESS - 1])
- rta[IFA_ADDRESS - 1] = rta[IFA_LOCAL - 1];
- memcpy(&ifa->ifa_local, RTA_DATA(rta[IFA_LOCAL-1]), 2);
- memcpy(&ifa->ifa_address, RTA_DATA(rta[IFA_ADDRESS-1]), 2);
+ if (tb[IFA_ADDRESS] == NULL)
+ tb[IFA_ADDRESS] = tb[IFA_LOCAL];
+
+ ifa->ifa_local = nla_get_le16(tb[IFA_LOCAL]);
+ ifa->ifa_address = nla_get_le16(tb[IFA_ADDRESS]);
ifa->ifa_flags = ifm->ifa_flags;
ifa->ifa_scope = ifm->ifa_scope;
ifa->ifa_dev = dn_db;
- if (rta[IFA_LABEL-1])
- rtattr_strlcpy(ifa->ifa_label, rta[IFA_LABEL-1], IFNAMSIZ);
+
+ if (tb[IFA_LABEL])
+ nla_strlcpy(ifa->ifa_label, tb[IFA_LABEL], IFNAMSIZ);
else
memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
- rv = dn_dev_insert_ifa(dn_db, ifa);
- if (rv)
+ err = dn_dev_insert_ifa(dn_db, ifa);
+ if (err)
dn_dev_free_ifa(ifa);
- return rv;
+
+ return err;
}
-static int dn_dev_fill_ifaddr(struct sk_buff *skb, struct dn_ifaddr *ifa,
- u32 pid, u32 seq, int event, unsigned int flags)
+static inline size_t dn_ifaddr_nlmsg_size(void)
+{
+ return NLMSG_ALIGN(sizeof(struct ifaddrmsg))
+ + nla_total_size(IFNAMSIZ) /* IFA_LABEL */
+ + nla_total_size(2) /* IFA_ADDRESS */
+ + nla_total_size(2); /* IFA_LOCAL */
+}
+
+static int dn_nl_fill_ifaddr(struct sk_buff *skb, struct dn_ifaddr *ifa,
+ u32 pid, u32 seq, int event, unsigned int flags)
{
struct ifaddrmsg *ifm;
struct nlmsghdr *nlh;
- unsigned char *b = skb->tail;
- nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*ifm), flags);
- ifm = NLMSG_DATA(nlh);
+ nlh = nlmsg_put(skb, pid, seq, event, sizeof(*ifm), flags);
+ if (nlh == NULL)
+ return -ENOBUFS;
+ ifm = nlmsg_data(nlh);
ifm->ifa_family = AF_DECnet;
ifm->ifa_prefixlen = 16;
ifm->ifa_flags = ifa->ifa_flags | IFA_F_PERMANENT;
ifm->ifa_scope = ifa->ifa_scope;
ifm->ifa_index = ifa->ifa_dev->dev->ifindex;
+
if (ifa->ifa_address)
- RTA_PUT(skb, IFA_ADDRESS, 2, &ifa->ifa_address);
+ NLA_PUT_LE16(skb, IFA_ADDRESS, ifa->ifa_address);
if (ifa->ifa_local)
- RTA_PUT(skb, IFA_LOCAL, 2, &ifa->ifa_local);
+ NLA_PUT_LE16(skb, IFA_LOCAL, ifa->ifa_local);
if (ifa->ifa_label[0])
- RTA_PUT(skb, IFA_LABEL, IFNAMSIZ, &ifa->ifa_label);
- nlh->nlmsg_len = skb->tail - b;
- return skb->len;
+ NLA_PUT_STRING(skb, IFA_LABEL, ifa->ifa_label);
+
+ return nlmsg_end(skb, nlh);
-nlmsg_failure:
-rtattr_failure:
- skb_trim(skb, b - skb->data);
- return -1;
+nla_put_failure:
+ return nlmsg_cancel(skb, nlh);
}
-static void rtmsg_ifa(int event, struct dn_ifaddr *ifa)
+static void dn_ifaddr_notify(int event, struct dn_ifaddr *ifa)
{
struct sk_buff *skb;
- int payload = sizeof(struct ifaddrmsg) + 128;
int err = -ENOBUFS;
- skb = alloc_skb(nlmsg_total_size(payload), GFP_KERNEL);
+ skb = alloc_skb(dn_ifaddr_nlmsg_size(), GFP_KERNEL);
if (skb == NULL)
goto errout;
- err = dn_dev_fill_ifaddr(skb, ifa, 0, 0, event, 0);
- if (err < 0) {
- kfree_skb(skb);
- goto errout;
- }
+ err = dn_nl_fill_ifaddr(skb, ifa, 0, 0, event, 0);
+ /* failure implies BUG in dn_ifaddr_nlmsg_size() */
+ BUG_ON(err < 0);
err = rtnl_notify(skb, 0, RTNLGRP_DECnet_IFADDR, NULL, GFP_KERNEL);
errout:
@@ -765,39 +792,43 @@ errout:
rtnl_set_sk_err(RTNLGRP_DECnet_IFADDR, err);
}
-static int dn_dev_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
+static int dn_nl_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
{
- int idx, dn_idx;
- int s_idx, s_dn_idx;
+ int idx, dn_idx = 0, skip_ndevs, skip_naddr;
struct net_device *dev;
struct dn_dev *dn_db;
struct dn_ifaddr *ifa;
- s_idx = cb->args[0];
- s_dn_idx = dn_idx = cb->args[1];
+ skip_ndevs = cb->args[0];
+ skip_naddr = cb->args[1];
+
read_lock(&dev_base_lock);
- for(dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
- if (idx < s_idx)
+ for (dev = dev_base, idx = 0; dev; dev = dev->next, idx++) {
+ if (idx < skip_ndevs)
continue;
- if (idx > s_idx)
- s_dn_idx = 0;
+ else if (idx > skip_ndevs) {
+ /* Only skip over addresses for first dev dumped
+ * in this iteration (idx == skip_ndevs) */
+ skip_naddr = 0;
+ }
+
if ((dn_db = dev->dn_ptr) == NULL)
continue;
- for(ifa = dn_db->ifa_list, dn_idx = 0; ifa; ifa = ifa->ifa_next, dn_idx++) {
- if (dn_idx < s_dn_idx)
+ for (ifa = dn_db->ifa_list, dn_idx = 0; ifa;
+ ifa = ifa->ifa_next, dn_idx++) {
+ if (dn_idx < skip_naddr)
continue;
- if (dn_dev_fill_ifaddr(skb, ifa,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- RTM_NEWADDR,
- NLM_F_MULTI) <= 0)
+ if (dn_nl_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, RTM_NEWADDR,
+ NLM_F_MULTI) < 0)
goto done;
}
}
done:
read_unlock(&dev_base_lock);
+
cb->args[0] = idx;
cb->args[1] = dn_idx;
@@ -1414,9 +1445,9 @@ static struct file_operations dn_dev_seq_fops = {
static struct rtnetlink_link dnet_rtnetlink_table[RTM_NR_MSGTYPES] =
{
- [RTM_NEWADDR - RTM_BASE] = { .doit = dn_dev_rtm_newaddr, },
- [RTM_DELADDR - RTM_BASE] = { .doit = dn_dev_rtm_deladdr, },
- [RTM_GETADDR - RTM_BASE] = { .dumpit = dn_dev_dump_ifaddr, },
+ [RTM_NEWADDR - RTM_BASE] = { .doit = dn_nl_newaddr, },
+ [RTM_DELADDR - RTM_BASE] = { .doit = dn_nl_deladdr, },
+ [RTM_GETADDR - RTM_BASE] = { .dumpit = dn_nl_dump_ifaddr, },
#ifdef CONFIG_DECNET_ROUTER
[RTM_NEWROUTE - RTM_BASE] = { .doit = dn_fib_rtm_newroute, },
[RTM_DELROUTE - RTM_BASE] = { .doit = dn_fib_rtm_delroute, },
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index ff0ebe99137d..7322bb36e825 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -591,7 +591,6 @@ static int dn_neigh_seq_open(struct inode *inode, struct file *file)
seq = file->private_data;
seq->private = s;
- memset(s, 0, sizeof(*s));
out:
return rc;
out_kfree:
diff --git a/net/decnet/dn_nsp_in.c b/net/decnet/dn_nsp_in.c
index 7683d4f754d2..39a6cf7fb566 100644
--- a/net/decnet/dn_nsp_in.c
+++ b/net/decnet/dn_nsp_in.c
@@ -804,7 +804,7 @@ got_it:
goto free_out;
}
- return sk_receive_skb(sk, skb);
+ return sk_receive_skb(sk, skb, 0);
}
return dn_nsp_no_socket(skb, reason);
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 23489f7232d2..9881933167bd 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -269,9 +269,7 @@ static inline int compare_keys(struct flowi *fl1, struct flowi *fl2)
{
return ((fl1->nl_u.dn_u.daddr ^ fl2->nl_u.dn_u.daddr) |
(fl1->nl_u.dn_u.saddr ^ fl2->nl_u.dn_u.saddr) |
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- (fl1->nl_u.dn_u.fwmark ^ fl2->nl_u.dn_u.fwmark) |
-#endif
+ (fl1->mark ^ fl2->mark) |
(fl1->nl_u.dn_u.scope ^ fl2->nl_u.dn_u.scope) |
(fl1->oif ^ fl2->oif) |
(fl1->iif ^ fl2->iif)) == 0;
@@ -882,10 +880,8 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
{ .daddr = oldflp->fld_dst,
.saddr = oldflp->fld_src,
.scope = RT_SCOPE_UNIVERSE,
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- .fwmark = oldflp->fld_fwmark
-#endif
} },
+ .mark = oldflp->mark,
.iif = loopback_dev.ifindex,
.oif = oldflp->oif };
struct dn_route *rt = NULL;
@@ -903,7 +899,7 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
"dn_route_output_slow: dst=%04x src=%04x mark=%d"
" iif=%d oif=%d\n", dn_ntohs(oldflp->fld_dst),
dn_ntohs(oldflp->fld_src),
- oldflp->fld_fwmark, loopback_dev.ifindex, oldflp->oif);
+ oldflp->mark, loopback_dev.ifindex, oldflp->oif);
/* If we have an output interface, verify its a DECnet device */
if (oldflp->oif) {
@@ -1108,9 +1104,7 @@ make_route:
rt->fl.fld_dst = oldflp->fld_dst;
rt->fl.oif = oldflp->oif;
rt->fl.iif = 0;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- rt->fl.fld_fwmark = oldflp->fld_fwmark;
-#endif
+ rt->fl.mark = oldflp->mark;
rt->rt_saddr = fl.fld_src;
rt->rt_daddr = fl.fld_dst;
@@ -1178,9 +1172,7 @@ static int __dn_route_output_key(struct dst_entry **pprt, const struct flowi *fl
rt = rcu_dereference(rt->u.rt_next)) {
if ((flp->fld_dst == rt->fl.fld_dst) &&
(flp->fld_src == rt->fl.fld_src) &&
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- (flp->fld_fwmark == rt->fl.fld_fwmark) &&
-#endif
+ (flp->mark == rt->fl.mark) &&
(rt->fl.iif == 0) &&
(rt->fl.oif == flp->oif)) {
rt->u.dst.lastuse = jiffies;
@@ -1235,10 +1227,8 @@ static int dn_route_input_slow(struct sk_buff *skb)
{ .daddr = cb->dst,
.saddr = cb->src,
.scope = RT_SCOPE_UNIVERSE,
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- .fwmark = skb->nfmark
-#endif
} },
+ .mark = skb->mark,
.iif = skb->dev->ifindex };
struct dn_fib_res res = { .fi = NULL, .type = RTN_UNREACHABLE };
int err = -EINVAL;
@@ -1385,7 +1375,7 @@ make_route:
rt->fl.fld_dst = cb->dst;
rt->fl.oif = 0;
rt->fl.iif = in_dev->ifindex;
- rt->fl.fld_fwmark = fl.fld_fwmark;
+ rt->fl.mark = fl.mark;
rt->u.dst.flags = DST_HOST;
rt->u.dst.neighbour = neigh;
@@ -1457,9 +1447,7 @@ int dn_route_input(struct sk_buff *skb)
if ((rt->fl.fld_src == cb->src) &&
(rt->fl.fld_dst == cb->dst) &&
(rt->fl.oif == 0) &&
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- (rt->fl.fld_fwmark == skb->nfmark) &&
-#endif
+ (rt->fl.mark == skb->mark) &&
(rt->fl.iif == cb->iif)) {
rt->u.dst.lastuse = jiffies;
dst_hold(&rt->u.dst);
@@ -1481,7 +1469,7 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
struct rtmsg *r;
struct nlmsghdr *nlh;
unsigned char *b = skb->tail;
- struct rta_cacheinfo ci;
+ long expires;
nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*r), flags);
r = NLMSG_DATA(nlh);
@@ -1514,16 +1502,10 @@ static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
RTA_PUT(skb, RTA_GATEWAY, 2, &rt->rt_gateway);
if (rtnetlink_put_metrics(skb, rt->u.dst.metrics) < 0)
goto rtattr_failure;
- ci.rta_lastuse = jiffies_to_clock_t(jiffies - rt->u.dst.lastuse);
- ci.rta_used = rt->u.dst.__use;
- ci.rta_clntref = atomic_read(&rt->u.dst.__refcnt);
- if (rt->u.dst.expires)
- ci.rta_expires = jiffies_to_clock_t(rt->u.dst.expires - jiffies);
- else
- ci.rta_expires = 0;
- ci.rta_error = rt->u.dst.error;
- ci.rta_id = ci.rta_ts = ci.rta_tsage = 0;
- RTA_PUT(skb, RTA_CACHEINFO, sizeof(ci), &ci);
+ expires = rt->u.dst.expires ? rt->u.dst.expires - jiffies : 0;
+ if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0, expires,
+ rt->u.dst.error) < 0)
+ goto rtattr_failure;
if (rt->fl.iif)
RTA_PUT(skb, RTA_IIF, sizeof(int), &rt->fl.iif);
@@ -1604,8 +1586,6 @@ int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
if (rtm->rtm_flags & RTM_F_NOTIFY)
rt->rt_flags |= RTCF_NOTIFY;
- NETLINK_CB(skb).dst_pid = NETLINK_CB(in_skb).pid;
-
err = dn_rt_fill_info(skb, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq, RTM_NEWROUTE, 0, 0);
if (err == 0)
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 590e0a72495c..e32d0c3d5a96 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -45,10 +45,6 @@ struct dn_fib_rule
__le16 dstmask;
__le16 srcmap;
u8 flags;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- u32 fwmark;
- u32 fwmask;
-#endif
};
static struct dn_fib_rule default_rule = {
@@ -112,13 +108,9 @@ errout:
}
static struct nla_policy dn_fib_rule_policy[FRA_MAX+1] __read_mostly = {
- [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
- [FRA_PRIORITY] = { .type = NLA_U32 },
+ FRA_GENERIC_POLICY,
[FRA_SRC] = { .type = NLA_U16 },
[FRA_DST] = { .type = NLA_U16 },
- [FRA_FWMARK] = { .type = NLA_U32 },
- [FRA_FWMASK] = { .type = NLA_U32 },
- [FRA_TABLE] = { .type = NLA_U32 },
};
static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
@@ -131,11 +123,6 @@ static int dn_fib_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
((daddr ^ r->dst) & r->dstmask))
return 0;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- if ((r->fwmark ^ fl->fld_fwmark) & r->fwmask)
- return 0;
-#endif
-
return 1;
}
@@ -169,20 +156,6 @@ static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
if (tb[FRA_DST])
r->dst = nla_get_u16(tb[FRA_DST]);
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- if (tb[FRA_FWMARK]) {
- r->fwmark = nla_get_u32(tb[FRA_FWMARK]);
- if (r->fwmark)
- /* compatibility: if the mark value is non-zero all bits
- * are compared unless a mask is explicitly specified.
- */
- r->fwmask = 0xFFFFFFFF;
- }
-
- if (tb[FRA_FWMASK])
- r->fwmask = nla_get_u32(tb[FRA_FWMASK]);
-#endif
-
r->src_len = frh->src_len;
r->srcmask = dnet_make_mask(r->src_len);
r->dst_len = frh->dst_len;
@@ -203,14 +176,6 @@ static int dn_fib_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
if (frh->dst_len && (r->dst_len != frh->dst_len))
return 0;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- if (tb[FRA_FWMARK] && (r->fwmark != nla_get_u32(tb[FRA_FWMARK])))
- return 0;
-
- if (tb[FRA_FWMASK] && (r->fwmask != nla_get_u32(tb[FRA_FWMASK])))
- return 0;
-#endif
-
if (tb[FRA_SRC] && (r->src != nla_get_u16(tb[FRA_SRC])))
return 0;
@@ -248,12 +213,6 @@ static int dn_fib_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
frh->src_len = r->src_len;
frh->tos = 0;
-#ifdef CONFIG_DECNET_ROUTE_FWMARK
- if (r->fwmark)
- NLA_PUT_U32(skb, FRA_FWMARK, r->fwmark);
- if (r->fwmask || r->fwmark)
- NLA_PUT_U32(skb, FRA_FWMASK, r->fwmask);
-#endif
if (r->dst_len)
NLA_PUT_U16(skb, FRA_DST, r->dst);
if (r->src_len)
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index 317904bb5896..bdbc3f431668 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -263,6 +263,32 @@ static int dn_fib_nh_match(struct rtmsg *r, struct nlmsghdr *nlh, struct dn_kern
return 0;
}
+static inline size_t dn_fib_nlmsg_size(struct dn_fib_info *fi)
+{
+ size_t payload = NLMSG_ALIGN(sizeof(struct rtmsg))
+ + nla_total_size(4) /* RTA_TABLE */
+ + nla_total_size(2) /* RTA_DST */
+ + nla_total_size(4); /* RTA_PRIORITY */
+
+ /* space for nested metrics */
+ payload += nla_total_size((RTAX_MAX * nla_total_size(4)));
+
+ if (fi->fib_nhs) {
+ /* Also handles the special case fib_nhs == 1 */
+
+ /* each nexthop is packed in an attribute */
+ size_t nhsize = nla_total_size(sizeof(struct rtnexthop));
+
+ /* may contain a gateway attribute */
+ nhsize += nla_total_size(4);
+
+ /* all nexthops are packed in a nested attribute */
+ payload += nla_total_size(fi->fib_nhs * nhsize);
+ }
+
+ return payload;
+}
+
static int dn_fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
u32 tb_id, u8 type, u8 scope, void *dst, int dst_len,
struct dn_fib_info *fi, unsigned int flags)
@@ -335,17 +361,15 @@ static void dn_rtmsg_fib(int event, struct dn_fib_node *f, int z, u32 tb_id,
u32 pid = req ? req->pid : 0;
int err = -ENOBUFS;
- skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ skb = nlmsg_new(dn_fib_nlmsg_size(DN_FIB_INFO(f)), GFP_KERNEL);
if (skb == NULL)
goto errout;
err = dn_fib_dump_info(skb, pid, nlh->nlmsg_seq, event, tb_id,
f->fn_type, f->fn_scope, &f->fn_key, z,
DN_FIB_INFO(f), 0);
- if (err < 0) {
- kfree_skb(skb);
- goto errout;
- }
+ /* failure implies BUG in dn_fib_nlmsg_size() */
+ BUG_ON(err < 0);
err = rtnl_notify(skb, pid, RTNLGRP_DECnet_ROUTE, nlh, GFP_KERNEL);
errout:
@@ -807,10 +831,11 @@ struct dn_fib_table *dn_fib_get_table(u32 n, int create)
printk(KERN_DEBUG "DECnet: BUG! Attempt to create routing table from interrupt\n");
return NULL;
}
- if ((t = kmalloc(sizeof(struct dn_fib_table) + sizeof(struct dn_hash), GFP_KERNEL)) == NULL)
- return NULL;
- memset(t, 0, sizeof(struct dn_fib_table));
+ t = kzalloc(sizeof(struct dn_fib_table) + sizeof(struct dn_hash),
+ GFP_KERNEL);
+ if (t == NULL)
+ return NULL;
t->n = n;
t->insert = dn_fib_table_insert;
@@ -818,7 +843,6 @@ struct dn_fib_table *dn_fib_get_table(u32 n, int create)
t->lookup = dn_fib_table_lookup;
t->flush = dn_fib_table_flush;
t->dump = dn_fib_table_dump;
- memset(t->data, 0, sizeof(struct dn_hash));
hlist_add_head_rcu(&t->hlist, &dn_fib_table_hash[h]);
return t;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 05:34:48 +0000