Release 4.7 include/net/flow.h
/*
*
* Generic internet FLOW.
*
*/
#ifndef _NET_FLOW_H
#define _NET_FLOW_H
#include <linux/socket.h>
#include <linux/in6.h>
#include <linux/atomic.h>
#include <net/flow_dissector.h>
/*
* ifindex generation is per-net namespace, and loopback is
* always the 1st device in ns (see net_dev_init), thus any
* loopback device should get ifindex 1
*/
#define LOOPBACK_IFINDEX 1
struct flowi_tunnel {
__be64 tun_id;
};
struct flowi_common {
int flowic_oif;
int flowic_iif;
__u32 flowic_mark;
__u8 flowic_tos;
__u8 flowic_scope;
__u8 flowic_proto;
__u8 flowic_flags;
#define FLOWI_FLAG_ANYSRC 0x01
#define FLOWI_FLAG_KNOWN_NH 0x02
#define FLOWI_FLAG_L3MDEV_SRC 0x04
#define FLOWI_FLAG_SKIP_NH_OIF 0x08
__u32 flowic_secid;
struct flowi_tunnel flowic_tun_key;
};
union flowi_uli {
struct {
__be16 dport;
__be16 sport;
}
ports;
struct {
__u8 type;
__u8 code;
}
icmpt;
struct {
__le16 dport;
__le16 sport;
}
dnports;
__be32 spi;
__be32 gre_key;
struct {
__u8 type;
}
mht;
};
struct flowi4 {
struct flowi_common __fl_common;
#define flowi4_oif __fl_common.flowic_oif
#define flowi4_iif __fl_common.flowic_iif
#define flowi4_mark __fl_common.flowic_mark
#define flowi4_tos __fl_common.flowic_tos
#define flowi4_scope __fl_common.flowic_scope
#define flowi4_proto __fl_common.flowic_proto
#define flowi4_flags __fl_common.flowic_flags
#define flowi4_secid __fl_common.flowic_secid
#define flowi4_tun_key __fl_common.flowic_tun_key
/* (saddr,daddr) must be grouped, same order as in IP header */
__be32 saddr;
__be32 daddr;
union flowi_uli uli;
#define fl4_sport uli.ports.sport
#define fl4_dport uli.ports.dport
#define fl4_icmp_type uli.icmpt.type
#define fl4_icmp_code uli.icmpt.code
#define fl4_ipsec_spi uli.spi
#define fl4_mh_type uli.mht.type
#define fl4_gre_key uli.gre_key
} __attribute__((__aligned__(BITS_PER_LONG/8)));
static inline void flowi4_init_output(struct flowi4 *fl4, int oif,
__u32 mark, __u8 tos, __u8 scope,
__u8 proto, __u8 flags,
__be32 daddr, __be32 saddr,
__be16 dport, __be16 sport)
{
fl4->flowi4_oif = oif;
fl4->flowi4_iif = LOOPBACK_IFINDEX;
fl4->flowi4_mark = mark;
fl4->flowi4_tos = tos;
fl4->flowi4_scope = scope;
fl4->flowi4_proto = proto;
fl4->flowi4_flags = flags;
fl4->flowi4_secid = 0;
fl4->flowi4_tun_key.tun_id = 0;
fl4->daddr = daddr;
fl4->saddr = saddr;
fl4->fl4_dport = dport;
fl4->fl4_sport = sport;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| david s. miller | david s. miller | 112 | 91.80% | 2 | 40.00% |
| thomas graf | thomas graf | 8 | 6.56% | 1 | 20.00% |
| eric dumazet | eric dumazet | 1 | 0.82% | 1 | 20.00% |
| cong wang | cong wang | 1 | 0.82% | 1 | 20.00% |
| Total | 122 | 100.00% | 5 | 100.00% |
/* Reset some input parameters after previous lookup */
static inline void flowi4_update_output(struct flowi4 *fl4, int oif, __u8 tos,
__be32 daddr, __be32 saddr)
{
fl4->flowi4_oif = oif;
fl4->flowi4_tos = tos;
fl4->daddr = daddr;
fl4->saddr = saddr;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| julian anastasov | julian anastasov | 48 | 100.00% | 1 | 100.00% |
| Total | 48 | 100.00% | 1 | 100.00% |
struct flowi6 {
struct flowi_common __fl_common;
#define flowi6_oif __fl_common.flowic_oif
#define flowi6_iif __fl_common.flowic_iif
#define flowi6_mark __fl_common.flowic_mark
#define flowi6_scope __fl_common.flowic_scope
#define flowi6_proto __fl_common.flowic_proto
#define flowi6_flags __fl_common.flowic_flags
#define flowi6_secid __fl_common.flowic_secid
#define flowi6_tun_key __fl_common.flowic_tun_key
struct in6_addr daddr;
struct in6_addr saddr;
/* Note: flowi6_tos is encoded in flowlabel, too. */
__be32 flowlabel;
union flowi_uli uli;
#define fl6_sport uli.ports.sport
#define fl6_dport uli.ports.dport
#define fl6_icmp_type uli.icmpt.type
#define fl6_icmp_code uli.icmpt.code
#define fl6_ipsec_spi uli.spi
#define fl6_mh_type uli.mht.type
#define fl6_gre_key uli.gre_key
} __attribute__((__aligned__(BITS_PER_LONG/8)));
struct flowidn {
struct flowi_common __fl_common;
#define flowidn_oif __fl_common.flowic_oif
#define flowidn_iif __fl_common.flowic_iif
#define flowidn_mark __fl_common.flowic_mark
#define flowidn_scope __fl_common.flowic_scope
#define flowidn_proto __fl_common.flowic_proto
#define flowidn_flags __fl_common.flowic_flags
__le16 daddr;
__le16 saddr;
union flowi_uli uli;
#define fld_sport uli.ports.sport
#define fld_dport uli.ports.dport
} __attribute__((__aligned__(BITS_PER_LONG/8)));
struct flowi {
union {
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 flowi_tun_key u.__fl_common.flowic_tun_key
} __attribute__((__aligned__(BITS_PER_LONG/8)));
static inline struct flowi *flowi4_to_flowi(struct flowi4 *fl4)
{
return container_of(fl4, struct flowi, u.ip4);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| david s. miller | david s. miller | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
static inline struct flowi *flowi6_to_flowi(struct flowi6 *fl6)
{
return container_of(fl6, struct flowi, u.ip6);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| david s. miller | david s. miller | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
static inline struct flowi *flowidn_to_flowi(struct flowidn *fldn)
{
return container_of(fldn, struct flowi, u.dn);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| david s. miller | david s. miller | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
typedef unsigned long flow_compare_t;
static inline size_t flow_key_size(u16 family)
{
switch (family) {
case AF_INET:
BUILD_BUG_ON(sizeof(struct flowi4) % sizeof(flow_compare_t));
return sizeof(struct flowi4) / sizeof(flow_compare_t);
case AF_INET6:
BUILD_BUG_ON(sizeof(struct flowi6) % sizeof(flow_compare_t));
return sizeof(struct flowi6) / sizeof(flow_compare_t);
case AF_DECnet:
BUILD_BUG_ON(sizeof(struct flowidn) % sizeof(flow_compare_t));
return sizeof(struct flowidn) / sizeof(flow_compare_t);
}
return 0;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| david ward | david ward | 106 | 100.00% | 1 | 100.00% |
| Total | 106 | 100.00% | 1 | 100.00% |
#define FLOW_DIR_IN 0
#define FLOW_DIR_OUT 1
#define FLOW_DIR_FWD 2
struct net;
struct sock;
struct flow_cache_ops;
struct flow_cache_object {
const struct flow_cache_ops *ops;
};
struct flow_cache_ops {
struct flow_cache_object *(*get)(struct flow_cache_object *);
int (*check)(struct flow_cache_object *);
void (*delete)(struct flow_cache_object *);
};
typedef struct flow_cache_object *(*flow_resolve_t)(
struct net *net, const struct flowi *key, u16 family,
u8 dir, struct flow_cache_object *oldobj, void *ctx);
struct flow_cache_object *flow_cache_lookup(struct net *net,
const struct flowi *key, u16 family,
u8 dir, flow_resolve_t resolver,
void *ctx);
int flow_cache_init(struct net *net);
void flow_cache_fini(struct net *net);
void flow_cache_flush(struct net *net);
void flow_cache_flush_deferred(struct net *net);
extern atomic_t flow_cache_genid;
__u32 __get_hash_from_flowi6(const struct flowi6 *fl6, struct flow_keys *keys);
static inline __u32 get_hash_from_flowi6(const struct flowi6 *fl6)
{
struct flow_keys keys;
return __get_hash_from_flowi6(fl6, &keys);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| tom herbert | tom herbert | 25 | 96.15% | 1 | 50.00% |
| david s. miller | david s. miller | 1 | 3.85% | 1 | 50.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
__u32 __get_hash_from_flowi4(const struct flowi4 *fl4, struct flow_keys *keys);
static inline __u32 get_hash_from_flowi4(const struct flowi4 *fl4)
{
struct flow_keys keys;
return __get_hash_from_flowi4(fl4, &keys);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| tom herbert | tom herbert | 25 | 96.15% | 1 | 50.00% |
| david s. miller | david s. miller | 1 | 3.85% | 1 | 50.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
#endif
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| david s. miller | david s. miller | 564 | 52.03% | 17 | 34.69% |
| david ward | david ward | 147 | 13.56% | 2 | 4.08% |
| tom herbert | tom herbert | 81 | 7.47% | 1 | 2.04% |
| timo teras | timo teras | 68 | 6.27% | 1 | 2.04% |
| julian anastasov | julian anastasov | 52 | 4.80% | 2 | 4.08% |
| pre-git | pre-git | 34 | 3.14% | 2 | 4.08% |
| thomas graf | thomas graf | 30 | 2.77% | 2 | 4.08% |
| fan du | fan du | 17 | 1.57% | 1 | 2.04% |
| steven whitehouse | steven whitehouse | 15 | 1.38% | 2 | 4.08% |
| steffen klassert | steffen klassert | 15 | 1.38% | 3 | 6.12% |
| alexey dobriyan | alexey dobriyan | 13 | 1.20% | 1 | 2.04% |
| andrew morton | andrew morton | 11 | 1.01% | 1 | 2.04% |
| david ahern | david ahern | 8 | 0.74% | 3 | 6.12% |
| herbert xu | herbert xu | 7 | 0.65% | 2 | 4.08% |
| cong wang | cong wang | 6 | 0.55% | 1 | 2.04% |
| eric dumazet | eric dumazet | 5 | 0.46% | 2 | 4.08% |
| jiri benc | jiri benc | 4 | 0.37% | 1 | 2.04% |
| trent jaeger | trent jaeger | 3 | 0.28% | 1 | 2.04% |
| al viro | al viro | 2 | 0.18% | 2 | 4.08% |
| arun sharma | arun sharma | 1 | 0.09% | 1 | 2.04% |
| daniel borkmann | daniel borkmann | 1 | 0.09% | 1 | 2.04% |
| Total | 1084 | 100.00% | 49 | 100.00% |
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