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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/net/flow.h | |
download | kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/net/flow.h')
-rw-r--r-- | include/net/flow.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/include/net/flow.h b/include/net/flow.h new file mode 100644 index 0000000..9a5c94b --- /dev/null +++ b/include/net/flow.h @@ -0,0 +1,95 @@ +/* + * + * Generic internet FLOW. + * + */ + +#ifndef _NET_FLOW_H +#define _NET_FLOW_H + +#include <linux/in6.h> +#include <asm/atomic.h> + +struct flowi { + int oif; + int iif; + + union { + struct { + __u32 daddr; + __u32 saddr; + __u32 fwmark; + __u8 tos; + __u8 scope; + } ip4_u; + + struct { + struct in6_addr daddr; + struct in6_addr saddr; + __u32 flowlabel; + } ip6_u; + + struct { + __u16 daddr; + __u16 saddr; + __u32 fwmark; + __u8 scope; + } dn_u; + } nl_u; +#define fld_dst nl_u.dn_u.daddr +#define fld_src nl_u.dn_u.saddr +#define fld_fwmark nl_u.dn_u.fwmark +#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 +#define fl4_fwmark nl_u.ip4_u.fwmark +#define fl4_tos nl_u.ip4_u.tos +#define fl4_scope nl_u.ip4_u.scope + + __u8 proto; + __u8 flags; +#define FLOWI_FLAG_MULTIPATHOLDROUTE 0x01 + union { + struct { + __u16 sport; + __u16 dport; + } ports; + + struct { + __u8 type; + __u8 code; + } icmpt; + + struct { + __u16 sport; + __u16 dport; + __u8 objnum; + __u8 objnamel; /* Not 16 bits since max val is 16 */ + __u8 objname[16]; /* Not zero terminated */ + } dnports; + + __u32 spi; + } uli_u; +#define fl_ip_sport uli_u.ports.sport +#define fl_ip_dport uli_u.ports.dport +#define fl_icmp_type uli_u.icmpt.type +#define fl_icmp_code uli_u.icmpt.code +#define fl_ipsec_spi uli_u.spi +} __attribute__((__aligned__(BITS_PER_LONG/8))); + +#define FLOW_DIR_IN 0 +#define FLOW_DIR_OUT 1 +#define FLOW_DIR_FWD 2 + +typedef void (*flow_resolve_t)(struct flowi *key, u16 family, u8 dir, + void **objp, atomic_t **obj_refp); + +extern void *flow_cache_lookup(struct flowi *key, u16 family, u8 dir, + flow_resolve_t resolver); +extern void flow_cache_flush(void); +extern atomic_t flow_cache_genid; + +#endif |