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Sourcecode: libnl version File versions

cls_obj.c

/*
 * lib/route/cls_api.c       Classifier Object
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation version 2.1
 *    of the License.
 *
 * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
 */

/**
 * @ingroup cls
 * @defgroup cls_obj Classifier Object
 * @{
 */

#include <netlink-local.h>
#include <netlink-tc.h>
#include <netlink/netlink.h>
#include <netlink/utils.h>
#include <netlink/route/tc.h>
#include <netlink/route/classifier.h>
#include <netlink/route/classifier-modules.h>
#include <netlink/route/link.h>

/** @cond SKIP */
#define CLS_ATTR_PRIO         (TCA_ATTR_MAX << 1)
#define CLS_ATTR_PROTOCOL     (TCA_ATTR_MAX << 2)
/** @endcond */

00032 static void cls_free_data(struct nl_object *obj)
{
      struct rtnl_cls *cls = (struct rtnl_cls *) obj;
      struct rtnl_cls_ops *cops;
      
      tca_free_data((struct rtnl_tca *) cls);

      cops = rtnl_cls_lookup_ops(cls);
      if (cops && cops->co_free_data)
            cops->co_free_data(cls);
}

static int cls_clone(struct nl_object *_dst, struct nl_object *_src)
{
      struct rtnl_cls *dst = nl_object_priv(_dst);
      struct rtnl_cls *src = nl_object_priv(_src);
      struct rtnl_cls_ops *cops;
      int err;
      
      err = tca_clone((struct rtnl_tca *) dst, (struct rtnl_tca *) src);
      if (err < 0)
            goto errout;

      cops = rtnl_cls_lookup_ops(src);
      if (cops && cops->co_clone)
            err = cops->co_clone(dst, src);
errout:
      return err;
}

static int cls_dump_brief(struct nl_object *obj, struct nl_dump_params *p)
{
      char buf[32];
      struct rtnl_cls *cls = (struct rtnl_cls *) obj;
      struct rtnl_cls_ops *cops;
      int line;

      line = tca_dump_brief((struct rtnl_tca *) cls, "cls", p, 0);

      dp_dump(p, " prio %u protocol %s", cls->c_prio,
            nl_ether_proto2str(cls->c_protocol, buf, sizeof(buf)));

      cops = rtnl_cls_lookup_ops(cls);
      if (cops && cops->co_dump[NL_DUMP_BRIEF])
            line = cops->co_dump[NL_DUMP_BRIEF](cls, p, line);
      dp_dump(p, "\n");

      return line;
}

static int cls_dump_full(struct nl_object *obj, struct nl_dump_params *p)
{
      struct rtnl_cls *cls = (struct rtnl_cls *) obj;
      struct rtnl_cls_ops *cops;
      int line;

      line = cls_dump_brief(obj, p);
      line = tca_dump_full((struct rtnl_tca *) cls, p, line);

      cops = rtnl_cls_lookup_ops(cls);
      if (cops && cops->co_dump[NL_DUMP_FULL])
            line = cops->co_dump[NL_DUMP_FULL](cls, p, line);
      else
            dp_dump(p, "no options\n");

      return line;
}

static int cls_dump_stats(struct nl_object *obj, struct nl_dump_params *p)
{
      struct rtnl_cls *cls = (struct rtnl_cls *) obj;
      struct rtnl_cls_ops *cops;
      int line;

      line = cls_dump_full(obj, p);
      line = tca_dump_stats((struct rtnl_tca *) cls, p, line);
      dp_dump(p, "\n");

      cops = rtnl_cls_lookup_ops(cls);
      if (cops && cops->co_dump[NL_DUMP_STATS])
            line = cops->co_dump[NL_DUMP_STATS](cls, p, line);

      return line;
}

/**
 * @name Allocation/Freeing
 * @{
 */

struct rtnl_cls *rtnl_cls_alloc(void)
{
      return (struct rtnl_cls *) nl_object_alloc(&cls_obj_ops);
}

void rtnl_cls_put(struct rtnl_cls *cls)
{
      nl_object_put((struct nl_object *) cls);
}

/** @} */


/**
 * @name Attributes
 * @{
 */

void rtnl_cls_set_ifindex(struct rtnl_cls *f, int ifindex)
{
      tca_set_ifindex((struct rtnl_tca *) f, ifindex);
}

void rtnl_cls_set_handle(struct rtnl_cls *f, uint32_t handle)
{
      tca_set_handle((struct rtnl_tca *) f, handle);
}

void rtnl_cls_set_parent(struct rtnl_cls *f, uint32_t parent)
{
      tca_set_parent((struct rtnl_tca *) f, parent);
}

void rtnl_cls_set_kind(struct rtnl_cls *f, const char *kind)
{
      tca_set_kind((struct rtnl_tca *) f, kind);
      f->c_ops = __rtnl_cls_lookup_ops(kind);
}

void rtnl_cls_set_prio(struct rtnl_cls *cls, int prio)
{
      cls->c_prio = prio;
      cls->ce_mask |= CLS_ATTR_PRIO;
}

int rtnl_cls_get_prio(struct rtnl_cls *cls)
{
      if (cls->ce_mask & CLS_ATTR_PRIO)
            return cls->c_prio;
      else
            return 0;
}

void rtnl_cls_set_protocol(struct rtnl_cls *cls, int protocol)
{
      cls->c_protocol = protocol;
      cls->ce_mask |= CLS_ATTR_PROTOCOL;
}

int rtnl_cls_get_protocol(struct rtnl_cls *cls)
{
      if (cls->ce_mask & CLS_ATTR_PROTOCOL)
            return cls->c_protocol;
      else
            return ETH_P_ALL;
}

/** @} */

struct nl_object_ops cls_obj_ops = {
      .oo_name          = "route/cls",
      .oo_size          = sizeof(struct rtnl_cls),
      .oo_free_data           = cls_free_data,
      .oo_clone         = cls_clone,
      .oo_dump[NL_DUMP_BRIEF] = cls_dump_brief,
      .oo_dump[NL_DUMP_FULL]  = cls_dump_full,
      .oo_dump[NL_DUMP_STATS] = cls_dump_stats,
      .oo_compare       = tca_compare,
      .oo_id_attrs            = (TCA_ATTR_IFINDEX | TCA_ATTR_HANDLE),
};

/** @} */

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