+++ /dev/null
-/*
- * lib/route/qdisc.c Queueing Disciplines
- *
- * 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 tc
- * @defgroup qdisc Queueing Disciplines
- *
- * @par Qdisc Handles
- * In general, qdiscs are identified by the major part of a traffic control
- * handle (the upper 16 bits). A few special values exist though:
- * - \c TC_H_ROOT: root qdisc (directly attached to the device)
- * - \c TC_H_INGRESS: ingress qdisc (directly attached to the device)
- * - \c TC_H_UNSPEC: unspecified qdisc (no reference)
- *
- * @par 1) Adding a Qdisc
- * @code
- * // Allocate a new empty qdisc to be filled out
- * struct rtnl_qdisc *qdisc = rtnl_qdisc_alloc();
- *
- * // ... specify the kind of the Qdisc
- * rtnl_qdisc_set_kind(qdisc, "pfifo");
- *
- * // Specify the device the qdisc should be attached to
- * rtnl_qdisc_set_ifindex(qdisc, ifindex);
- *
- * // ... specify the parent qdisc
- * rtnl_qdisc_set_parent(qdisc, TC_H_ROOT);
- *
- * // Specifying the handle is not required but makes reidentifying easier
- * // and may help to avoid adding a qdisc twice.
- * rtnl_qdisc_set_handle(qdisc, 0x000A0000);
- *
- * // Now on to specify the qdisc specific options, see the relevant qdisc
- * // modules for documentation, in this example we set the upper limit of
- * // the packet fifo qdisc to 64
- * rtnl_qdisc_fifo_set_limit(qdisc, 64);
- *
- * rtnl_qdisc_add(handle, qdisc, NLM_R_REPLACE);
- *
- * // Free up the memory
- * rtnl_qdisc_put(qdisc);
- * @endcode
- *
- * @par 2) Deleting a Qdisc
- * @code
- * // Allocate a new empty qdisc to be filled out with the parameters
- * // specifying the qdisc to be deleted. Alternatively a fully equiped
- * // Qdisc object from a cache can be used.
- * struct rtnl_qdisc *qdisc = rtnl_qdisc_alloc();
- *
- * // The interface index of the device the qdisc is on and the parent handle
- * // are the least required fields to be filled out.
- * // Note: Specify TC_H_ROOT or TC_H_INGRESS as parent handle to delete the
- * // root respectively root ingress qdisc.
- * rtnl_qdisc_set_ifindex(qdisc, ifindex);
- * rtnl_qdisc_set_parent(qdisc, parent_handle);
- *
- * // If required for identification, the handle can be specified as well.
- * rtnl_qdisc_set_handle(qdisc, qdisc_handle);
- *
- * // Not required but maybe helpful as sanity check, the kind of the qdisc
- * // can be specified to avoid mistakes.
- * rtnl_qdisc_set_kind(qdisc, "pfifo");
- *
- * // Finally delete the qdisc with rtnl_qdisc_delete(), alternatively
- * // rtnl_qdisc_build_delete_request() can be invoked to generate an
- * // appropritate netlink message to send out.
- * rtnl_qdisc_delete(handle, qdisc);
- *
- * // Free up the memory
- * rtnl_qdisc_put(qdisc);
- * @endcode
- *
- * @{
- */
-
-#include <netlink-local.h>
-#include <netlink-tc.h>
-#include <netlink/netlink.h>
-#include <netlink/utils.h>
-#include <netlink/route/link.h>
-#include <netlink/route/tc.h>
-#include <netlink/route/qdisc.h>
-#include <netlink/route/class.h>
-#include <netlink/route/classifier.h>
-#include <netlink/route/qdisc-modules.h>
-
-/** @cond SKIP */
-static struct nl_cache_ops rtnl_qdisc_ops;
-/** @endcond */
-
-static struct rtnl_qdisc_ops *qdisc_ops_list;
-
-static struct rtnl_qdisc_ops *qdisc_lookup_ops(const char *kind)
-{
- struct rtnl_qdisc_ops *ops;
-
- for (ops = qdisc_ops_list; ops; ops = ops->qo_next)
- if (!strcmp(kind, ops->qo_kind))
- return ops;
-
- return NULL;
-}
-
-static inline struct rtnl_qdisc_ops *qdisc_ops(struct rtnl_qdisc *qdisc)
-{
- if (!qdisc->q_ops)
- qdisc->q_ops = qdisc_lookup_ops(qdisc->q_kind);
-
- return qdisc->q_ops;
-}
-
-/**
- * @name QDisc Module API
- * @{
- */
-
-/**
- * Register a qdisc module
- * @arg ops qdisc module operations
- */
-int rtnl_qdisc_register(struct rtnl_qdisc_ops *ops)
-{
- struct rtnl_qdisc_ops *o, **op;
-
- if (!ops->qo_kind[0])
- BUG();
-
- for (op = &qdisc_ops_list; (o = *op) != NULL; op = &o->qo_next)
- if (!strcasecmp(ops->qo_kind, o->qo_kind))
- return nl_errno(EEXIST);
-
- ops->qo_next = NULL;
- *op = ops;
-
- return 0;
-}
-
-/**
- * Unregister a qdisc module
- * @arg ops qdisc module operations
- */
-int rtnl_qdisc_unregister(struct rtnl_qdisc_ops *ops)
-{
- struct rtnl_qdisc_ops *o, **op;
-
- for (op = &qdisc_ops_list; (o = *op) != NULL; op = &o->qo_next)
- if (!strcasecmp(ops->qo_kind, o->qo_kind))
- break;
-
- if (!o)
- return nl_errno(ENOENT);
-
- *op = ops->qo_next;
-
- return 0;
-}
-
-/** @} */
-
-static int qdisc_msg_parser(struct sockaddr_nl *who, struct nlmsghdr *n,
- void *arg)
-{
- int err = -ENOMEM;
- struct nl_parser_param *pp = arg;
- struct rtnl_qdisc *qdisc;
- struct rtnl_qdisc_ops *ops;
-
- qdisc = rtnl_qdisc_alloc();
- if (!qdisc) {
- err = nl_errno(ENOMEM);
- goto errout;
- }
-
- qdisc->ce_msgtype = n->nlmsg_type;
-
- err = tca_msg_parser(n, (struct rtnl_tca *) qdisc);
- if (err < 0)
- goto errout_free;
-
- ops = qdisc_ops(qdisc);
- if (ops && ops->qo_msg_parser) {
- err = ops->qo_msg_parser(qdisc);
- if (err < 0)
- goto errout_free;
- }
-
- err = pp->pp_cb((struct nl_object *) qdisc, pp);
- if (err < 0)
- goto errout_free;
-
- return P_ACCEPT;
-
-errout_free:
- rtnl_qdisc_put(qdisc);
-errout:
- return err;
-}
-
-static int qdisc_request_update(struct nl_cache *c, struct nl_handle *h)
-{
- struct tcmsg tchdr = {
- .tcm_family = AF_UNSPEC,
- .tcm_ifindex = c->c_iarg1,
- };
-
- return nl_send_simple(h, RTM_GETQDISC, NLM_F_DUMP, &tchdr,
- sizeof(tchdr));
-}
-
-static void qdisc_free_data(struct nl_object *obj)
-{
- struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) obj;
- struct rtnl_qdisc_ops *ops;
-
- tca_free_data((struct rtnl_tca *) qdisc);
-
- ops = qdisc_ops(qdisc);
- if (ops && ops->qo_free_data)
- ops->qo_free_data(qdisc);
-}
-
-static int qdisc_dump_brief(struct nl_object *obj, struct nl_dump_params *p)
-{
- struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) obj;
- struct rtnl_qdisc_ops *ops;
-
- int line = tca_dump_brief((struct rtnl_tca *) qdisc, "qdisc", p, 0);
-
- ops = qdisc_ops(qdisc);
- if (ops && ops->qo_dump[NL_DUMP_BRIEF])
- line = ops->qo_dump[NL_DUMP_BRIEF](qdisc, p, line);
-
- dp_dump(p, "\n");
-
- return line;
-}
-
-static int qdisc_dump_full(struct nl_object *arg, struct nl_dump_params *p)
-{
- struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) arg;
- struct rtnl_qdisc_ops *ops;
-
- int line = qdisc_dump_brief(arg, p);
-
- line = tca_dump_full((struct rtnl_tca *) qdisc, p, line);
- dp_dump(p, "refcnt %u ", qdisc->q_info);
-
- ops = qdisc_ops(qdisc);
- if (ops && ops->qo_dump[NL_DUMP_FULL])
- line = ops->qo_dump[NL_DUMP_FULL](qdisc, p, line);
-
- dp_dump(p, "\n");
- return line;
-}
-
-static int qdisc_dump_stats(struct nl_object *arg, struct nl_dump_params *p)
-{
- struct rtnl_qdisc *qdisc = (struct rtnl_qdisc *) arg;
- struct rtnl_qdisc_ops *ops;
-
- int line = qdisc_dump_full(arg, p);
- line = tca_dump_stats((struct rtnl_tca *) qdisc, p, line );
- dp_dump(p, "\n");
-
- ops = qdisc_ops(qdisc);
- if (ops && ops->qo_dump[NL_DUMP_STATS])
- line = ops->qo_dump[NL_DUMP_STATS](qdisc, p, line);
-
- return line;
-}
-
-static int qdisc_filter(struct nl_object *obj, struct nl_object *filter)
-{
- return tca_filter((struct rtnl_tca *) obj, (struct rtnl_tca *) filter);
-}
-
-/**
- * @name QDisc Addition
- * @{
- */
-
-static struct nl_msg *qdisc_build(struct rtnl_qdisc *qdisc, int type, int flags)
-{
- struct rtnl_qdisc_ops *ops;
- struct nl_msg *msg;
- int err;
-
- msg = tca_build_msg((struct rtnl_tca *) qdisc, type, flags);
- if (!msg)
- goto errout;
-
- ops = qdisc_ops(qdisc);
- if (ops && ops->qo_get_opts) {
- struct nl_msg *opts;
-
- opts = ops->qo_get_opts(qdisc);
- if (opts) {
- err = nla_put_nested(msg, TCA_OPTIONS, opts);
- nlmsg_free(opts);
- if (err < 0)
- goto errout;
- }
- }
-
- return msg;
-errout:
- nlmsg_free(msg);
-
- return NULL;
-}
-
-/**
- * Build a netlink message to add a new qdisc
- * @arg qdisc qdisc to add
- * @arg flags additional netlink message flags
- *
- * Builds a new netlink message requesting an addition of a qdisc.
- * The netlink message header isn't fully equipped with all relevant
- * fields and must be sent out via nl_send_auto_complete() or
- * supplemented as needed.
- *
- * Common message flags used:
- * - NLM_F_REPLACE - replace a potential existing qdisc
- *
- * @return New netlink message
- */
-struct nl_msg *rtnl_qdisc_build_add_request(struct rtnl_qdisc *qdisc,
- int flags)
-{
- struct nl_msg *msg;
-
- msg = qdisc_build(qdisc, RTM_NEWQDISC, NLM_F_CREATE | flags);
- if (!msg)
- nl_errno(ENOMEM);
-
- return msg;
-}
-
-/**
- * Add a new qdisc
- * @arg handle netlink handle
- * @arg qdisc qdisc to delete
- * @arg flags additional netlink message flags
- *
- * Builds a netlink message by calling rtnl_qdisc_build_add_request(),
- * sends the request to the kernel and waits for the ACK to be
- * received and thus blocks until the request has been processed.
- *
- * Common message flags used:
- * - NLM_F_REPLACE - replace a potential existing qdisc
- *
- * @return 0 on success or a negative error code
- */
-int rtnl_qdisc_add(struct nl_handle *handle, struct rtnl_qdisc *qdisc,
- int flags)
-{
- struct nl_msg *msg;
- int err;
-
- msg = rtnl_qdisc_build_add_request(qdisc, flags);
- if (!msg)
- return nl_errno(ENOMEM);
-
- err = nl_send_auto_complete(handle, msg);
- if (err < 0)
- return err;
-
- nlmsg_free(msg);
- return nl_wait_for_ack(handle);
-}
-
-/** @} */
-
-/**
- * @name QDisc Modification
- * @{
- */
-
-/**
- * Build a netlink message to change attributes of a existing qdisc
- * @arg qdisc qdisc to change
- * @arg new new qdisc attributes
- *
- * Builds a new netlink message requesting an change of qdisc
- * attributes. The netlink message header isn't fully equipped
- * with all relevant fields and must be sent out via
- * nl_send_auto_complete() or supplemented as needed.
- *
- * @return New netlink message
- */
-struct nl_msg *rtnl_qdisc_build_change_request(struct rtnl_qdisc *qdisc,
- struct rtnl_qdisc *new)
-{
- return qdisc_build(qdisc, RTM_NEWQDISC, NLM_F_REPLACE);
-}
-
-/**
- * Change attributes of a qdisc
- * @arg handle netlink handle
- * @arg qdisc qdisc to change
- * @arg new new qdisc attributes
- *
- * Builds a netlink message by calling rtnl_qdisc_build_change_request(),
- * sends the request to the kernel and waits for the ACK to be
- * received and thus blocks until the request has been processed.
- *
- * @return 0 on success or a negative error code
- */
-int rtnl_qdisc_change(struct nl_handle *handle, struct rtnl_qdisc *qdisc,
- struct rtnl_qdisc *new)
-{
- struct nl_msg *msg;
- int err;
-
- msg = rtnl_qdisc_build_change_request(qdisc, new);
- if (!msg)
- return nl_errno(ENOMEM);
-
- err = nl_send_auto_complete(handle, msg);
- if (err < 0)
- return err;
-
- nlmsg_free(msg);
- return nl_wait_for_ack(handle);
-}
-
-/** @} */
-
-/**
- * @name QDisc Deletion
- * @{
- */
-
-/**
- * Build a netlink request message to delete a qdisc
- * @arg qdisc qdisc to delete
- *
- * Builds a new netlink message requesting a deletion of a qdisc.
- * The netlink message header isn't fully equipped with all relevant
- * fields and must thus be sent out via nl_send_auto_complete()
- * or supplemented as needed.
- *
- * @return New netlink message
- */
-struct nl_msg *rtnl_qdisc_build_delete_request(struct rtnl_qdisc *qdisc)
-{
- struct nl_msg *msg;
- struct tcmsg tchdr;
- int required = TCA_ATTR_IFINDEX | TCA_ATTR_PARENT;
-
- if ((qdisc->q_mask & required) != required)
- BUG();
-
- msg = nlmsg_build_simple(RTM_DELQDISC, 0);
- if (!msg)
- return NULL;
-
- tchdr.tcm_family = AF_UNSPEC,
- tchdr.tcm_handle = qdisc->q_handle,
- tchdr.tcm_parent = qdisc->q_parent,
- tchdr.tcm_ifindex = qdisc->q_ifindex,
- nlmsg_append(msg, &tchdr, sizeof(tchdr), 1);
-
- return msg;
-}
-
-/**
- * Delete a qdisc
- * @arg handle netlink handle
- * @arg qdisc qdisc to delete
- *
- * Builds a netlink message by calling rtnl_qdisc_build_delete_request(),
- * sends the request to the kernel and waits for the ACK to be
- * received and thus blocks until the request has been processed.
- *
- * @return 0 on success or a negative error code
- */
-int rtnl_qdisc_delete(struct nl_handle *handle, struct rtnl_qdisc *qdisc)
-{
- struct nl_msg *msg;
- int err;
-
- msg = rtnl_qdisc_build_delete_request(qdisc);
- if (!msg)
- return nl_errno(ENOMEM);
-
- err = nl_send_auto_complete(handle, msg);
- if (err < 0)
- return err;
-
- nlmsg_free(msg);
- return nl_wait_for_ack(handle);
-}
-
-/** @} */
-
-/**
- * @name General
- * @{
- */
-
-/**
- * Allocate a new qdisc object
- * @return New qdisc object
- */
-struct rtnl_qdisc *rtnl_qdisc_alloc(void)
-{
- return (struct rtnl_qdisc *) nl_object_alloc_from_ops(&rtnl_qdisc_ops);
-}
-
-/**
- * Give back reference on rqdisc object.
- * @arg qdisc Qdisc object to be given back.
- *
- * Decrements the reference counter and frees the object if the
- * last reference has been released.
- */
-void rtnl_qdisc_put(struct rtnl_qdisc *qdisc)
-{
- nl_object_put((struct nl_object *) qdisc);
-}
-/**
- * Free qdisc object.
- * @arg qdisc Qdisc object to be freed.
- *
- * @note Always use rtnl_qdisc_put() unless you're absolutely sure
- * that no other user may have a reference on this object.
- */
-void rtnl_qdisc_free(struct rtnl_qdisc *qdisc)
-{
- nl_object_free((struct nl_object *) qdisc);
-}
-
-/** @} */
-
-/**
- * @name Qdisc Cache Management
- * @{
- */
-
-/**
- * Build a qdisc cache including all qdiscs currently configured in
- * the kernel
- * @arg handle netlink handle
- *
- * Allocates a new cache, initializes it properly and updates it to
- * include all qdiscs currently configured in the kernel.
- *
- * @note The caller is responsible for destroying and freeing the
- * cache after using it.
- * @return The cache or NULL if an error has occured.
- */
-struct nl_cache * rtnl_qdisc_alloc_cache(struct nl_handle *handle)
-{
- struct nl_cache * cache;
-
- cache = nl_cache_alloc_from_ops(&rtnl_qdisc_ops);
- if (cache == NULL)
- return NULL;
-
- if (nl_cache_update(handle, cache) < 0) {
- nl_cache_free(cache);
- return NULL;
- }
-
- return cache;
-}
-
-/**
- * Look up qdisc by its parent in the provided cache
- * @arg cache qdisc cache
- * @arg ifindex interface the qdisc is attached to
- * @arg parent parent handle
- * @return pointer to qdisc inside the cache or NULL if no match was found.
- */
-struct rtnl_qdisc * rtnl_qdisc_get_by_parent(struct nl_cache *cache,
- int ifindex, uint32_t parent)
-{
- struct rtnl_qdisc *q;
-
- if (cache->c_ops != &rtnl_qdisc_ops)
- return NULL;
-
- nl_list_for_each_entry(q, &cache->c_items, ce_list) {
- if (q->q_parent == parent && q->q_ifindex == ifindex) {
- nl_object_get((struct nl_object *) q);
- return q;
- }
- }
-
- return NULL;
-}
-
-/**
- * Look up qdisc by its handle in the provided cache
- * @arg cache qdisc cache
- * @arg ifindex interface the qdisc is attached to
- * @arg handle qdisc handle
- * @return pointer to qdisc inside the cache or NULL if no match was found.
- */
-struct rtnl_qdisc * rtnl_qdisc_get(struct nl_cache *cache,
- int ifindex, uint32_t handle)
-{
- struct rtnl_qdisc *q;
-
- if (cache->c_ops != &rtnl_qdisc_ops)
- return NULL;
-
- nl_list_for_each_entry(q, &cache->c_items, ce_list) {
- if (q->q_handle == handle && q->q_ifindex == ifindex) {
- nl_object_get((struct nl_object *) q);
- return q;
- }
- }
-
- return NULL;
-}
-
-/** @} */
-
-/**
- * @name Qdisc Specific Options
- * @{
- */
-
-/**
- * Return qdisc specific options for use in TCA_OPTIONS
- * @arg qdisc qdisc carrying the optiosn
- *
- * @return new headerless netlink message carrying the options as payload
- */
-struct nl_msg *rtnl_qdisc_get_opts(struct rtnl_qdisc *qdisc)
-{
- struct rtnl_qdisc_ops *ops;
-
- ops = qdisc_ops(qdisc);
- if (ops && ops->qo_get_opts)
- return ops->qo_get_opts(qdisc);
-
- return NULL;
-}
-
-/** @} */
-
-/**
- * @name Iterators
- * @{
- */
-
-/**
- * Call a callback for each child class of a qdisc
- * @arg qdisc the parent qdisc
- * @arg cache a class cache including all classes of the interface
- * the specified qdisc is attached to
- * @arg cb callback function
- * @arg arg argument to be passed to callback function
- */
-void rtnl_qdisc_foreach_child(struct rtnl_qdisc *qdisc, struct nl_cache *cache,
- void (*cb)(struct nl_object *, void *), void *arg)
-{
- struct rtnl_class *filter;
-
- filter = rtnl_class_alloc();
- if (!filter)
- return;
-
- rtnl_class_set_parent(filter, qdisc->q_handle);
- rtnl_class_set_ifindex(filter, qdisc->q_ifindex);
- rtnl_class_set_kind(filter, qdisc->q_kind);
-
- nl_cache_foreach_filter(cache, (struct nl_object *) filter, cb, arg);
-
- rtnl_class_put(filter);
-}
-
-/**
- * Call a callback for each filter attached to the qdisc
- * @arg qdisc the parent qdisc
- * @arg cache a filter cache including at least all the filters
- * attached to the specified qdisc
- * @arg cb callback function
- * @arg arg argument to be passed to callback function
- */
-void rtnl_qdisc_foreach_cls(struct rtnl_qdisc *qdisc, struct nl_cache *cache,
- void (*cb)(struct nl_object *, void *), void *arg)
-{
- struct rtnl_cls *filter;
-
- filter = rtnl_cls_alloc();
- if (!filter)
- return;
-
- rtnl_cls_set_ifindex(filter, qdisc->q_ifindex);
- rtnl_cls_set_parent(filter, qdisc->q_parent);
-
- nl_cache_foreach_filter(cache, (struct nl_object *) filter, cb, arg);
- rtnl_cls_put(filter);
-}
-
-/** @} */
-
-/**
- * @name Attribute Modification
- * @{
- */
-
-/**
- * Set the interface index of a qdisc to the specified value
- * @arg qdisc qdisc to be changed
- * @arg ifindex new interface index
- */
-void rtnl_qdisc_set_ifindex(struct rtnl_qdisc *qdisc, int ifindex)
-{
- tca_set_ifindex((struct rtnl_tca *) qdisc, ifindex);
-}
-
-/**
- * Get the interface index of a qdisc
- * @arg qdisc qdisc handle
- * @return Interface index or RTNL_LINK_NOT_FOUND if not set
- */
-int rtnl_qdisc_get_ifindex(struct rtnl_qdisc *qdisc)
-{
- return tca_get_ifindex((struct rtnl_tca *) qdisc);
-}
-
-/**
- * Set the handle of a qdisc to the specified value
- * @arg qdisc qdisc to be changed
- * @arg handle new handle
- */
-void rtnl_qdisc_set_handle(struct rtnl_qdisc *qdisc, uint32_t handle)
-{
- tca_set_handle((struct rtnl_tca *) qdisc, handle);
-}
-
-/**
- * Get the handle of a qdisc
- * @arg qdisc qdisc handle
- * @return Handle or 0 if not set
- */
-uint32_t rtnl_qdisc_get_handle(struct rtnl_qdisc *qdisc)
-{
- return tca_get_handle((struct rtnl_tca *) qdisc);
-}
-
-/**
- * Set the parent handle of a qdisc to the specified value
- * @arg qdisc qdisc to be changed
- * @arg parent new parent handle
- */
-void rtnl_qdisc_set_parent(struct rtnl_qdisc *qdisc, uint32_t parent)
-{
- tca_set_parent((struct rtnl_tca *) qdisc, parent);
-}
-
-/**
- * Get the parent handle of a qdisc
- * @arg qdisc qdisc handle
- * @return Parent handle or 0 if not set
- */
-uint32_t rtnl_qdisc_get_parent(struct rtnl_qdisc *qdisc)
-{
- return tca_get_parent((struct rtnl_tca *) qdisc);
-}
-
-/**
- * Set the kind of a qdisc to the specified value
- * @arg qdisc qdisc to be changed
- * @arg name new kind name
- */
-void rtnl_qdisc_set_kind(struct rtnl_qdisc *qdisc, const char *name)
-{
- tca_set_kind((struct rtnl_tca *) qdisc, name);
- qdisc->q_ops = qdisc_lookup_ops(name);
-}
-
-/**
- * Get the kind of a qdisc
- * @arg qdisc qdisc handle
- * @return Kind or NULL if not set
- */
-char *rtnl_qdisc_get_kind(struct rtnl_qdisc *qdisc)
-{
- return tca_get_kind((struct rtnl_tca *) qdisc);
-}
-
-/**
- * Get the statistic specified by the id
- * @arg qdisc qdisc handle
- * @arg id statistic id
- * @return The current counter of the specified statistic
- */
-uint64_t rtnl_qdisc_get_stat(struct rtnl_qdisc *qdisc,
- enum rtnl_tc_stats_id id)
-{
- return tca_get_stat((struct rtnl_tca *) qdisc, id);
-}
-
-/** @} */
-
-static struct nl_cache_ops rtnl_qdisc_ops = {
- .co_name = "route/qdisc",
- .co_size = sizeof(struct rtnl_qdisc),
- .co_hdrsize = sizeof(struct tcmsg),
- .co_msgtypes = {
- { RTM_NEWQDISC, "new" },
- { RTM_DELQDISC, "delete" },
- { RTM_GETQDISC, "get" },
- { -1, NULL },
- },
- .co_protocol = NETLINK_ROUTE,
- .co_request_update = qdisc_request_update,
- .co_msg_parser = qdisc_msg_parser,
- .co_free_data = qdisc_free_data,
- .co_dump[NL_DUMP_BRIEF] = qdisc_dump_brief,
- .co_dump[NL_DUMP_FULL] = qdisc_dump_full,
- .co_dump[NL_DUMP_STATS] = qdisc_dump_stats,
- .co_filter = qdisc_filter,
-};
-
-static void __init qdisc_init(void)
-{
- nl_cache_mngt_register(&rtnl_qdisc_ops);
-}
-
-static void __exit qdisc_exit(void)
-{
- nl_cache_mngt_unregister(&rtnl_qdisc_ops);
-}
-
-/** @} */
git://git.onelab.eu / libnl.git / blobdiff