Classifier Modules

Modules
	Firewall Classifier
	Universal 32-bit Classifier

Data Structures
struct	rtnl_cls_ops
	Classifier operations. More...

Classifier Module API
int	rtnl_cls_register (struct rtnl_cls_ops *cops)
	Register a classifier module.
int	rtnl_cls_unregister (struct rtnl_cls_ops *cops)
	Unregister a classifier module.
struct rtnl_cls_ops *	__rtnl_cls_lookup_ops (const char *kind)
struct rtnl_cls_ops *	rtnl_cls_lookup_ops (struct rtnl_cls *cls)
	Lookup classifier operations for a classifier object.

Detailed Description

Function Documentation

rtnl_cls_register()

int rtnl_cls_register

(

struct rtnl_cls_ops *

cops

)

Parameters

cops	classifier module operations

Definition at line 38 of file cls_api.c.

{
        struct rtnl_cls_ops *o, **op;
 
        if (!cops->co_kind)
                BUG();
 
        for (op = &cls_ops_list; (o = *op) != NULL; op = &o->co_next)
                if (!strcasecmp(cops->co_kind, o->co_kind))
                        return nl_errno(EEXIST);
 
        cops->co_next = NULL;
        *op = cops;
 
        return 0;
}

References rtnl_cls_ops::co_kind, and rtnl_cls_ops::co_next.

rtnl_cls_unregister()

int rtnl_cls_unregister

(

struct rtnl_cls_ops *

cops

)

Parameters

cops	classifier module operations

Definition at line 59 of file cls_api.c.

{
        struct rtnl_cls_ops *o, **op;
 
        for (op = &cls_ops_list; (o = *op) != NULL; op = &o->co_next)
                if (!strcasecmp(cops->co_kind, o->co_kind))
                        break;
 
        if (!o)
                return nl_errno(ENOENT);
 
        *op = cops->co_next;
 
        return 0;
}

References rtnl_cls_ops::co_kind, and rtnl_cls_ops::co_next.

__rtnl_cls_lookup_ops()

struct rtnl_cls_ops * __rtnl_cls_lookup_ops

(

const char *

kind

)

Definition at line 75 of file cls_api.c.

{
        struct rtnl_cls_ops *cops;
 
        for (cops = cls_ops_list; cops; cops = cops->co_next)
                if (!strcmp(kind, cops->co_kind))
                        return cops;
 
        return NULL;
}

rtnl_cls_lookup_ops()

struct rtnl_cls_ops * rtnl_cls_lookup_ops

(

struct rtnl_cls *

cls

)

Parameters

cls	Classifier object.

Returns

Classifier operations or NULL if not found.

Definition at line 92 of file cls_api.c.

{
        if (!cls->c_ops)
                cls->c_ops = __rtnl_cls_lookup_ops(cls->c_kind);
 
        return cls->c_ops;
}