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authorThomas Graf <tgraf@suug.ch>2006-11-09 15:20:38 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-02 21:21:39 -0800
commit47dcf0cb1005e86d0eea780f2984b2e7490f63cd (patch)
tree1a56767a77e219fab54ab1daf34342745f6d62a8 /net/decnet
parent82e91ffef60e6eba9848fe149ce1eecd2b5aef12 (diff)
downloadlinux-47dcf0cb1005e86d0eea780f2984b2e7490f63cd.tar.bz2
[NET]: Rethink mark field in struct flowi
Now that all protocols have been made aware of the mark field it can be moved out of the union thus simplyfing its usage. The config options in the IPv4/IPv6/DECnet subsystems to enable respectively disable mark based routing only obfuscate the code with ifdefs, the cost for the additional comparison in the flow key is insignificant, and most distributions have all these options enabled by default anyway. Therefore it makes sense to remove the config options and enable mark based routing by default. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/decnet')
-rw-r--r--net/decnet/Kconfig8
-rw-r--r--net/decnet/dn_route.c28
-rw-r--r--net/decnet/dn_rules.c12
3 files changed, 9 insertions, 39 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_route.c b/net/decnet/dn_route.c
index 3482839af280..f759d6f422ea 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->mark
-#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->mark) &&
-#endif
+ (rt->fl.mark == skb->mark) &&
(rt->fl.iif == cb->iif)) {
rt->u.dst.lastuse = jiffies;
dst_hold(&rt->u.dst);
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 590e0a72495c..a09c09f5572d 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -45,10 +45,8 @@ 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 = {
@@ -131,10 +129,8 @@ 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)
+ if ((r->fwmark ^ fl->mark) & r->fwmask)
return 0;
-#endif
return 1;
}
@@ -169,7 +165,6 @@ 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)
@@ -181,7 +176,6 @@ static int dn_fib_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
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);
@@ -203,13 +197,11 @@ 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 +240,10 @@ 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)