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u32: add support for hashing

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Adrian Ban 2012-05-08 23:14:13 +02:00 • committed by Thomas Graf
parent f8b4f9271b
commit beb40e2b4e
2 changed files with 89 additions and 0 deletions
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4
include/netlink/route/cls/u32.h
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@ -21,6 +21,10 @@ extern "C" {
extern void rtnl_u32_set_handle(struct rtnl_cls *, int, int, int);
extern int rtnl_u32_set_classid(struct rtnl_cls *, uint32_t);
extern int rtnl_u32_set_divisor(struct rtnl_cls *, uint32_t);
extern int rtnl_u32_set_link(struct rtnl_cls *, uint32_t);
extern int rtnl_u32_set_hashmask(struct rtnl_cls *, uint32_t, uint32_t);
extern int rtnl_u32_set_cls_terminal(struct rtnl_cls *);
extern int rtnl_u32_set_flags(struct rtnl_cls *, int);
extern int rtnl_u32_add_key(struct rtnl_cls *, uint32_t, uint32_t,

85
lib/route/cls/u32.c
View file

@ -374,6 +374,91 @@ int rtnl_u32_set_classid(struct rtnl_cls *cls, uint32_t classid)
return 0;
}
int rtnl_u32_set_divisor(struct rtnl_cls *cls, uint32_t divisor)
{
struct rtnl_u32 *u;
if (!(u = (struct rtnl_u32 *) rtnl_tc_data(TC_CAST(cls))))
return -NLE_NOMEM;
u->cu_divisor = divisor;
u->cu_mask |= U32_ATTR_DIVISOR;
return 0;
}
int rtnl_u32_set_link(struct rtnl_cls *cls, uint32_t link)
{
struct rtnl_u32 *u;
if (!(u = (struct rtnl_u32 *) rtnl_tc_data(TC_CAST(cls))))
return -NLE_NOMEM;
u->cu_link = link;
u->cu_mask |= U32_ATTR_LINK;
return 0;
}
int rtnl_u32_set_hashtable(struct rtnl_cls *cls, uint32_t ht)
{
struct rtnl_u32 *u;
if (!(u = (struct rtnl_u32 *) rtnl_tc_data(TC_CAST(cls))))
return -NLE_NOMEM;
u->cu_hash = ht;
u->cu_mask |= U32_ATTR_HASH;
return 0;
}
int rtnl_u32_set_hashmask(struct rtnl_cls *cls, uint32_t hashmask, uint32_t offset)
{
struct rtnl_u32 *u;
struct tc_u32_sel *sel;
int err;
hashmask = htonl(hashmask);
if (!(u = (struct rtnl_u32 *) rtnl_tc_data(TC_CAST(cls))))
return -NLE_NOMEM;
sel = u32_selector_alloc(u);
if (!sel)
return -NLE_NOMEM;
err = nl_data_append(u->cu_selector, NULL, sizeof(struct tc_u32_key));
if(err < 0)
return err;
sel = u32_selector(u);
sel->hmask = hashmask;
sel->hoff = offset;
return 0;
}
int rtnl_u32_set_cls_terminal(struct rtnl_cls *cls)
{
struct rtnl_u32 *u;
struct tc_u32_sel *sel;
int err;
if (!(u = (struct rtnl_u32 *) rtnl_tc_data(TC_CAST(cls))))
return -NLE_NOMEM;
sel = u32_selector_alloc(u);
if (!sel)
return -NLE_NOMEM;
err = nl_data_append(u->cu_selector, NULL, sizeof(struct tc_u32_key));
if(err < 0)
return err;
sel = u32_selector(u);
sel->flags |= TC_U32_TERMINAL;
return 0;
}
/** @} */
/**