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net: Break struct flowi out into AF specific instances. 

Now we have struct flowi4, flowi6, and flowidn for each address
family.  And struct flowi is just a union of them all.

It might have been troublesome to convert flow_cache_uli_match() but
as it turns out this function is completely unused and therefore can
be simply removed.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-03-12 00:44:35 -05:00
parent 6281dcc94a
commit 56bb8059e1
6 changed files with 68 additions and 68 deletions
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4
include/net/dn.h
View File

@ -194,8 +194,8 @@ static inline void dn_dn2eth(unsigned char *ethaddr, __le16 addr)
static inline void dn_sk_ports_copy(struct flowi *fl, struct dn_scp *scp)
{
fl->uli_u.dnports.sport = scp->addrloc;
fl->uli_u.dnports.dport = scp->addrrem;
fl->u.dn.uli.ports.sport = scp->addrloc;
fl->u.dn.uli.ports.dport = scp->addrrem;
}
extern unsigned dn_mss_from_pmtu(struct net_device *dev, int mtu);

112
include/net/flow.h
View File

@ -48,61 +48,68 @@ union flowi_uli {
} mht;
};
struct flowi {
struct flowi4 {
struct flowi_common __fl_common;
#define flowi_oif __fl_common.flowic_oif
#define flowi_iif __fl_common.flowic_iif
#define flowi_mark __fl_common.flowic_mark
#define flowi_tos __fl_common.flowic_tos
#define flowi_scope __fl_common.flowic_scope
#define flowi_proto __fl_common.flowic_proto
#define flowi_flags __fl_common.flowic_flags
#define flowi_secid __fl_common.flowic_secid
__be32 daddr;
__be32 saddr;
union flowi_uli uli;
};
struct flowi6 {
struct flowi_common __fl_common;
struct in6_addr daddr;
struct in6_addr saddr;
__be32 flowlabel;
union flowi_uli uli;
};
struct flowidn {
struct flowi_common __fl_common;
__le16 daddr;
__le16 saddr;
union flowi_uli uli;
};
struct flowi {
union {
struct {
__be32 daddr;
__be32 saddr;
} ip4_u;
struct {
struct in6_addr daddr;
struct in6_addr saddr;
__be32 flowlabel;
} ip6_u;
struct {
__le16 daddr;
__le16 saddr;
__u8 scope;
} dn_u;
} nl_u;
#define fld_dst nl_u.dn_u.daddr
#define fld_src nl_u.dn_u.saddr
#define fld_scope nl_u.dn_u.scope
#define fl6_dst nl_u.ip6_u.daddr
#define fl6_src nl_u.ip6_u.saddr
#define fl6_flowlabel nl_u.ip6_u.flowlabel
#define fl4_dst nl_u.ip4_u.daddr
#define fl4_src nl_u.ip4_u.saddr
struct flowi_common __fl_common;
struct flowi4 ip4;
struct flowi6 ip6;
struct flowidn dn;
} u;
#define flowi_oif u.__fl_common.flowic_oif
#define flowi_iif u.__fl_common.flowic_iif
#define flowi_mark u.__fl_common.flowic_mark
#define flowi_tos u.__fl_common.flowic_tos
#define flowi_scope u.__fl_common.flowic_scope
#define flowi_proto u.__fl_common.flowic_proto
#define flowi_flags u.__fl_common.flowic_flags
#define flowi_secid u.__fl_common.flowic_secid
#define fl4_tos flowi_tos
#define fl4_scope flowi_scope
#define fld_scope flowi_scope
union flowi_uli uli_u;
#define fl4_sport uli_u.ports.sport
#define fl4_dport uli_u.ports.dport
#define fl4_icmp_type uli_u.icmpt.type
#define fl4_icmp_code uli_u.icmpt.code
#define fl4_ipsec_spi uli_u.spi
#define fl4_mh_type uli_u.mht.type
#define fl4_gre_key uli_u.gre_key
#define fl6_sport uli_u.ports.sport
#define fl6_dport uli_u.ports.dport
#define fl6_icmp_type uli_u.icmpt.type
#define fl6_icmp_code uli_u.icmpt.code
#define fl6_ipsec_spi uli_u.spi
#define fl6_mh_type uli_u.mht.type
#define fl6_gre_key uli_u.gre_key
#define fld_dst u.dn.daddr
#define fld_src u.dn.saddr
#define fl6_dst u.ip6.daddr
#define fl6_src u.ip6.saddr
#define fl6_flowlabel u.ip6.flowlabel
#define fl4_dst u.ip4.daddr
#define fl4_src u.ip4.saddr
#define fl4_sport u.ip4.uli.ports.sport
#define fl4_dport u.ip4.uli.ports.dport
#define fl4_icmp_type u.ip4.uli.icmpt.type
#define fl4_icmp_code u.ip4.uli.icmpt.code
#define fl4_ipsec_spi u.ip4.uli.spi
#define fl4_mh_type u.ip4.uli.mht.type
#define fl4_gre_key u.ip4.uli.gre_key
#define fl6_sport u.ip6.uli.ports.sport
#define fl6_dport u.ip6.uli.ports.dport
#define fl6_icmp_type u.ip6.uli.icmpt.type
#define fl6_icmp_code u.ip6.uli.icmpt.code
#define fl6_ipsec_spi u.ip6.uli.spi
#define fl6_mh_type u.ip6.uli.mht.type
#define fl6_gre_key u.ip6.uli.gre_key
} __attribute__((__aligned__(BITS_PER_LONG/8)));
#define FLOW_DIR_IN 0
@ -134,11 +141,4 @@ extern struct flow_cache_object *flow_cache_lookup(
extern void flow_cache_flush(void);
extern atomic_t flow_cache_genid;
static inline int flow_cache_uli_match(const struct flowi *fl1,
const struct flowi *fl2)
{
return (fl1->flowi_proto == fl2->flowi_proto &&
!memcmp(&fl1->uli_u, &fl2->uli_u, sizeof(fl1->uli_u)));
}
#endif

4
net/ipv4/xfrm4_state.c
View File

@ -25,9 +25,9 @@ __xfrm4_init_tempsel(struct xfrm_selector *sel, const struct flowi *fl)
{
sel->daddr.a4 = fl->fl4_dst;
sel->saddr.a4 = fl->fl4_src;
sel->dport = xfrm_flowi_dport(fl, &fl->uli_u);
sel->dport = xfrm_flowi_dport(fl, &fl->u.ip4.uli);
sel->dport_mask = htons(0xffff);
sel->sport = xfrm_flowi_sport(fl, &fl->uli_u);
sel->sport = xfrm_flowi_sport(fl, &fl->u.ip4.uli);
sel->sport_mask = htons(0xffff);
sel->family = AF_INET;
sel->prefixlen_d = 32;

4
net/ipv6/mip6.c
View File

@ -241,10 +241,10 @@ static int mip6_destopt_reject(struct xfrm_state *x, struct sk_buff *skb,
sel.prefixlen_s = 128;
sel.family = AF_INET6;
sel.proto = fl->flowi_proto;
sel.dport = xfrm_flowi_dport(fl, &fl->uli_u);
sel.dport = xfrm_flowi_dport(fl, &fl->u.ip6.uli);
if (sel.dport)
sel.dport_mask = htons(~0);
sel.sport = xfrm_flowi_sport(fl, &fl->uli_u);
sel.sport = xfrm_flowi_sport(fl, &fl->u.ip6.uli);
if (sel.sport)
sel.sport_mask = htons(~0);
sel.ifindex = fl->flowi_oif;

4
net/ipv6/xfrm6_state.c
View File

@ -26,9 +26,9 @@ __xfrm6_init_tempsel(struct xfrm_selector *sel, const struct flowi *fl)
* to current session. */
ipv6_addr_copy((struct in6_addr *)&sel->daddr, &fl->fl6_dst);
ipv6_addr_copy((struct in6_addr *)&sel->saddr, &fl->fl6_src);
sel->dport = xfrm_flowi_dport(fl, &fl->uli_u);
sel->dport = xfrm_flowi_dport(fl, &fl->u.ip6.uli);
sel->dport_mask = htons(0xffff);
sel->sport = xfrm_flowi_sport(fl, &fl->uli_u);
sel->sport = xfrm_flowi_sport(fl, &fl->u.ip6.uli);
sel->sport_mask = htons(0xffff);
sel->family = AF_INET6;
sel->prefixlen_d = 128;

8
net/xfrm/xfrm_policy.c
View File

@ -61,8 +61,8 @@ __xfrm4_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
{
return addr_match(&fl->fl4_dst, &sel->daddr, sel->prefixlen_d) &&
addr_match(&fl->fl4_src, &sel->saddr, sel->prefixlen_s) &&
!((xfrm_flowi_dport(fl, &fl->uli_u) ^ sel->dport) & sel->dport_mask) &&
!((xfrm_flowi_sport(fl, &fl->uli_u) ^ sel->sport) & sel->sport_mask) &&
!((xfrm_flowi_dport(fl, &fl->u.ip4.uli) ^ sel->dport) & sel->dport_mask) &&
!((xfrm_flowi_sport(fl, &fl->u.ip4.uli) ^ sel->sport) & sel->sport_mask) &&
(fl->flowi_proto == sel->proto || !sel->proto) &&
(fl->flowi_oif == sel->ifindex || !sel->ifindex);
}
@ -72,8 +72,8 @@ __xfrm6_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
{
return addr_match(&fl->fl6_dst, &sel->daddr, sel->prefixlen_d) &&
addr_match(&fl->fl6_src, &sel->saddr, sel->prefixlen_s) &&
!((xfrm_flowi_dport(fl, &fl->uli_u) ^ sel->dport) & sel->dport_mask) &&
!((xfrm_flowi_sport(fl, &fl->uli_u) ^ sel->sport) & sel->sport_mask) &&
!((xfrm_flowi_dport(fl, &fl->u.ip6.uli) ^ sel->dport) & sel->dport_mask) &&
!((xfrm_flowi_sport(fl, &fl->u.ip6.uli) ^ sel->sport) & sel->sport_mask) &&
(fl->flowi_proto == sel->proto || !sel->proto) &&
(fl->flowi_oif == sel->ifindex || !sel->ifindex);
}