xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[NET]: Rethink mark field in struct flowi

Browse Source 
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>
This commit is contained in:
Thomas Graf
2006-11-09 15:20:38 -08:00
committed by David S. Miller
parent 82e91ffef6
commit 47dcf0cb10
14 changed files with 26 additions and 121 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
net/ipv6/fib6_rules.c
View File

@@ -25,10 +25,8 @@ struct fib6_rule
struct fib_rule common;
struct rt6key src;
struct rt6key dst;
#ifdef CONFIG_IPV6_ROUTE_FWMARK
u32 fwmark;
u32 fwmask;
#endif
u8 tclass;
};
@@ -130,10 +128,8 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
if (r->tclass && r->tclass != ((ntohl(fl->fl6_flowlabel) >> 20) & 0xff))
return 0;
#ifdef CONFIG_IPV6_ROUTE_FWMARK
if ((r->fwmark ^ fl->fl6_fwmark) & r->fwmask)
if ((r->fwmark ^ fl->mark) & r->fwmask)
return 0;
#endif
return 1;
}
@@ -177,7 +173,6 @@ static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
nla_memcpy(&rule6->dst.addr, tb[FRA_DST],
sizeof(struct in6_addr));
#ifdef CONFIG_IPV6_ROUTE_FWMARK
if (tb[FRA_FWMARK]) {
rule6->fwmark = nla_get_u32(tb[FRA_FWMARK]);
if (rule6->fwmark) {
@@ -192,7 +187,6 @@ static int fib6_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
if (tb[FRA_FWMASK])
rule6->fwmask = nla_get_u32(tb[FRA_FWMASK]);
#endif
rule6->src.plen = frh->src_len;
rule6->dst.plen = frh->dst_len;
@@ -225,13 +219,11 @@ static int fib6_rule_compare(struct fib_rule *rule, struct fib_rule_hdr *frh,
nla_memcmp(tb[FRA_DST], &rule6->dst.addr, sizeof(struct in6_addr)))
return 0;
#ifdef CONFIG_IPV6_ROUTE_FWMARK
if (tb[FRA_FWMARK] && (rule6->fwmark != nla_get_u32(tb[FRA_FWMARK])))
return 0;
if (tb[FRA_FWMASK] && (rule6->fwmask != nla_get_u32(tb[FRA_FWMASK])))
return 0;
#endif
return 1;
}
@@ -254,13 +246,11 @@ static int fib6_rule_fill(struct fib_rule *rule, struct sk_buff *skb,
NLA_PUT(skb, FRA_SRC, sizeof(struct in6_addr),
&rule6->src.addr);
#ifdef CONFIG_IPV6_ROUTE_FWMARK
if (rule6->fwmark)
NLA_PUT_U32(skb, FRA_FWMARK, rule6->fwmark);
if (rule6->fwmask || rule6->fwmark)
NLA_PUT_U32(skb, FRA_FWMASK, rule6->fwmask);
#endif
return 0;