X-Git-Url: http://git.onelab.eu/?p=libnl.git;a=blobdiff_plain;f=lib%2Froute%2Fclassifier.c;fp=lib%2Froute%2Fclassifier.c;h=0000000000000000000000000000000000000000;hp=30dc4cf3000eeda609dd850451d523a5e0c6a53c;hb=332c8b7561dcac7ac95cc0d07328b1cb22d780a6;hpb=eabdd897b75ecc1fac5e255229a899126085e57a

diff --git a/lib/route/classifier.c b/lib/route/classifier.c
deleted file mode 100644
index 30dc4cf..0000000
--- a/lib/route/classifier.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/*
- * lib/route/classifier.c       Classifier
- *
- *	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 cls Classifiers
- *
- * @par Classifier Identification
- * - protocol
- * - priority
- * - parent
- * - interface
- * - kind
- * - handle
- * 
- * @{
- */
-
-#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)
-
-static struct nl_cache_ops rtnl_cls_ops;
-/** @endcond */
-
-static struct rtnl_cls_ops *cls_ops_list;
-
-static struct rtnl_cls_ops * cls_lookup_ops(char *kind)
-{
-	struct rtnl_cls_ops *ops;
-
-	for (ops = cls_ops_list; ops; ops = ops->co_next)
-		if (!strcmp(kind, ops->co_kind))
-			return ops;
-
-	return NULL;
-}
-
-static inline struct rtnl_cls_ops *cls_ops(struct rtnl_cls *cls)
-{
-	if (!cls->c_ops)
-		cls->c_ops = cls_lookup_ops(cls->c_kind);
-
-	return cls->c_ops;
-}
-
-/**
- * @name Classifier Module API
- * @{
- */
-
-/**
- * Register a classifier module
- * @arg ops		classifier module operations
- */
-int rtnl_cls_register(struct rtnl_cls_ops *ops)
-{
-	struct rtnl_cls_ops *o, **op;
-
-	if (!ops->co_kind)
-		BUG();
-
-	for (op = &cls_ops_list; (o = *op) != NULL; op = &o->co_next)
-		if (!strcasecmp(ops->co_kind, o->co_kind))
-			return nl_errno(EEXIST);
-
-	ops->co_next = NULL;
-	*op = ops;
-
-	return 0;
-}
-
-/**
- * Unregister a classifier module
- * @arg ops		classifier module operations
- */
-int rtnl_cls_unregister(struct rtnl_cls_ops *ops)
-{
-	struct rtnl_cls_ops *o, **op;
-
-	for (op = &cls_ops_list; (o = *op) != NULL; op = &o->co_next)
-		if (!strcasecmp(ops->co_kind, o->co_kind))
-			break;
-
-	if (!o)
-		return nl_errno(ENOENT);
-
-	*op = ops->co_next;
-
-	return 0;
-}
-
-/** @} */
-
-static int cls_msg_parser(struct sockaddr_nl *who, struct nlmsghdr *nlh,
-			  void *arg)
-{
-	int err;
-	struct nl_parser_param *pp = arg;
-	struct rtnl_cls *cls;
-	struct rtnl_cls_ops *ops;
-
-	cls = rtnl_cls_alloc();
-	if (!cls) {
-		err = nl_errno(ENOMEM);
-		goto errout;
-	}
-	cls->ce_msgtype = nlh->nlmsg_type;
-
-	err = tca_msg_parser(nlh, (struct rtnl_tca *) cls);
-	if (err < 0)
-		goto errout_free;
-
-	cls->c_prio = TC_H_MAJ(cls->c_info) >> 16;
-	cls->c_protocol = ntohs(TC_H_MIN(cls->c_info));
-
-	ops = cls_ops(cls);
-	if (ops && ops->co_msg_parser) {
-		err = ops->co_msg_parser(cls);
-		if (err < 0)
-			goto errout_free;
-	}
-
-	err = pp->pp_cb((struct nl_object *) cls, pp);
-	if (err < 0)
-		goto errout_free;
-
-	return P_ACCEPT;
-
-errout_free:
-	rtnl_cls_put(cls);
-errout:
-	return err;
-}
-
-static int cls_request_update(struct nl_cache *cache, struct nl_handle *handle)
-{
-	struct tcmsg tchdr = {
-		.tcm_family = AF_UNSPEC,
-		.tcm_ifindex = cache->c_iarg1,
-		.tcm_parent = cache->c_iarg2,
-	};
-
-	return nl_send_simple(handle, RTM_GETTFILTER, NLM_F_DUMP, &tchdr,
-			      sizeof(tchdr));
-}
-
-
-static void cls_free_data(struct nl_object *obj)
-{
-	struct rtnl_cls *cls = (struct rtnl_cls *) obj;
-	struct rtnl_cls_ops *ops;
-	
-	tca_free_data((struct rtnl_tca *) cls);
-
-	ops = cls_ops(cls);
-	if (ops && ops->co_free_data)
-		ops->co_free_data(cls);
-}
-
-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 *ops;
-	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)));
-
-	ops = cls_ops(cls);
-	if (ops && ops->co_dump[NL_DUMP_BRIEF])
-		line = ops->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 *ops;
-	int line;
-
-	line = cls_dump_brief(obj, p);
-	line = tca_dump_full((struct rtnl_tca *) cls, p, line);
-
-	ops = cls_ops(cls);
-	if (ops && ops->co_dump[NL_DUMP_FULL])
-		line = ops->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 *ops;
-	int line;
-
-	line = cls_dump_full(obj, p);
-	line = tca_dump_stats((struct rtnl_tca *) cls, p, line);
-	dp_dump(p, "\n");
-
-	ops = cls_ops(cls);
-	if (ops && ops->co_dump[NL_DUMP_STATS])
-		line = ops->co_dump[NL_DUMP_STATS](cls, p, line);
-
-	return line;
-}
-
-static int cls_filter(struct nl_object *obj, struct nl_object *filter)
-{
-	return tca_filter((struct rtnl_tca *) obj, (struct rtnl_tca *) filter);
-}
-
-static struct nl_msg *cls_build(struct rtnl_cls *cls, int type, int flags)
-{
-	struct nl_msg *msg;
-	struct rtnl_cls_ops *ops;
-	int err, prio, proto;
-	struct tcmsg *tchdr;
-
-	msg = tca_build_msg((struct rtnl_tca *) cls, type, flags);
-	if (!msg)
-		goto errout;
-
-	tchdr = nlmsg_data(nlmsg_hdr(msg));
-	prio = cls->c_mask & CLS_ATTR_PRIO ? cls->c_prio : 0;
-	proto = cls->c_mask & CLS_ATTR_PROTOCOL ? cls->c_protocol : ETH_P_ALL;
-	tchdr->tcm_info = TC_H_MAKE(prio << 16, htons(proto)),
-
-	ops = cls_ops(cls);
-	if (ops && ops->co_get_opts) {
-		struct nl_msg *opts;
-		
-		opts = ops->co_get_opts(cls);
-		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;
-}
-
-/**
- * @name Classifier Addition/Modification/Deletion
- * @{
- */
-
-/**
- * Build a netlink message to add a new classifier
- * @arg cls		classifier to add
- * @arg flags		additional netlink message flags
- *
- * Builds a new netlink message requesting an addition of a classifier
- * 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. \a classifier must contain the attributes of
- * the new classifier set via \c rtnl_cls_set_* functions. \a opts
- * may point to the clsasifier specific options.
- *
- * @return New netlink message
- */
-struct nl_msg * rtnl_cls_build_add_request(struct rtnl_cls *cls, int flags)
-{
-	return cls_build(cls, RTM_NEWTFILTER, NLM_F_CREATE | flags);
-}
-
-/**
- * Add a new classifier
- * @arg handle		netlink handle
- * @arg cls 		classifier to add
- * @arg flags		additional netlink message flags
- *
- * Builds a netlink message by calling rtnl_cls_build_add_request(),
- * sends the request to the kernel and waits for the next ACK to be
- * received and thus blocks until the request has been processed.
- *
- * @return 0 on sucess or a negative error if an error occured.
- */
-int rtnl_cls_add(struct nl_handle *handle, struct rtnl_cls *cls, int flags)
-{
-	int err;
-	struct nl_msg *msg;
-	
-	msg = rtnl_cls_build_add_request(cls, 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);
-}
-
-/**
- * Build a netlink message to change classifier attributes
- * @arg cls		classifier to change
- * @arg flags		additional netlink message flags
- *
- * Builds a new netlink message requesting a change of a neigh
- * attributes. 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 The netlink message
- */
-struct nl_msg *rtnl_cls_build_change_request(struct rtnl_cls *cls, int flags)
-{
-	return cls_build(cls, RTM_NEWTFILTER, NLM_F_REPLACE | flags);
-}
-
-/**
- * Change a classifier
- * @arg handle		netlink handle
- * @arg cls		classifier to change
- * @arg flags		additional netlink message flags
- *
- * Builds a netlink message by calling rtnl_cls_build_change_request(),
- * sends the request to the kernel and waits for the next ACK to be
- * received and thus blocks until the request has been processed.
- *
- * @return 0 on sucess or a negative error if an error occured.
- */
-int rtnl_cls_change(struct nl_handle *handle, struct rtnl_cls *cls,
-		    int flags)
-{
-	int err;
-	struct nl_msg *msg;
-	
-	msg = rtnl_cls_build_change_request(cls, 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);
-}
-
-/**
- * Build a netlink request message to delete a classifier
- * @arg cls		classifier to delete
- * @arg flags		additional netlink message flags
- *
- * Builds a new netlink message requesting a deletion of a classifier.
- * 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_cls_build_delete_request(struct rtnl_cls *cls, int flags)
-{
-	return cls_build(cls, RTM_DELTFILTER, flags);
-}
-
-
-/**
- * Delete a classifier
- * @arg handle		netlink handle
- * @arg cls		classifier to delete
- * @arg flags		additional netlink message flags
- *
- * Builds a netlink message by calling rtnl_cls_build_delete_request(),
- * sends the request to the kernel and waits for the next ACK to be
- * received and thus blocks until the request has been processed.
- *
- * @return 0 on sucess or a negative error if an error occured.
- */
-int rtnl_cls_delete(struct nl_handle *handle, struct rtnl_cls *cls, int flags)
-{
-	int err;
-	struct nl_msg *msg;
-	
-	msg = rtnl_cls_build_delete_request(cls, 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 General API
- * @{
- */
-
-/**
- * Allocate a new classifier object
- * @return New classifier object
- */
-struct rtnl_cls *rtnl_cls_alloc(void)
-{
-	return (struct rtnl_cls *) nl_object_alloc_from_ops(&rtnl_cls_ops);
-}
-
-/**
- * Give back reference on classifier object.
- * @arg cls		Classifier object to be given back.
- *
- * Decrements the reference counter and frees the object if the
- * last reference has been released.
- */
-void rtnl_cls_put(struct rtnl_cls *cls)
-{
-	nl_object_put((struct nl_object *) cls);
-}
-
-/**
- * Free classifier object.
- * @arg cls		Classifier object to be freed.
- *
- * @note Always use rtnl_cls_put() unless you're absolutely sure
- *       that no other user may have a reference on this object.
- */
-void rtnl_cls_free(struct rtnl_cls *cls)
-{
-	nl_object_free((struct nl_object *) cls);
-}
-
-/**
- * Build a classifier cache including all classifiers attached to the
- * specified class/qdisc on eht specified interface.
- * @arg handle		netlink handle
- * @arg ifindex		interface index of the link the classes are
- *                      attached to.
- * @arg parent          parent qdisc/class
- *
- * Allocates a new cache, initializes it properly and updates it to
- * include all classes attached to the specified interface.
- *
- * @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_cls_alloc_cache(struct nl_handle *handle,
-				      int ifindex, uint32_t parent)
-{
-	struct nl_cache * cache;
-	
-	cache = nl_cache_alloc_from_ops(&rtnl_cls_ops);
-	if (cache == NULL)
-		return NULL;
-
-	cache->c_iarg1 = ifindex;
-	cache->c_iarg2 = parent;
-	
-	if (nl_cache_update(handle, cache) < 0) {
-		nl_cache_free(cache);
-		return NULL;
-	}
-
-	return cache;
-}
-
-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);
-}
-
-/**
- * Set prioroty of a classifier
- * @arg cls		classifier to change
- * @arg prio		new priority
- */
-void rtnl_cls_set_prio(struct rtnl_cls *cls, int prio)
-{
-	cls->c_prio = prio;
-	cls->c_mask |= CLS_ATTR_PRIO;
-}
-
-/**
- * Get priority of a classifier
- * @arg cls		classifier
- */
-int rtnl_cls_get_prio(struct rtnl_cls *cls)
-{
-	if (cls->c_mask & CLS_ATTR_PRIO)
-		return cls->c_prio;
-	else
-		return 0;
-}
-
-/**
- * Set protocol of a classifier
- * @arg cls		classifier to change
- * @arg protocol	protocol identifier (ETH_P_xxx) in host byte-order
- */
-void rtnl_cls_set_protocol(struct rtnl_cls *cls, int protocol)
-{
-	cls->c_protocol = protocol;
-	cls->c_mask |= CLS_ATTR_PROTOCOL;
-}
-
-/**
- * Get protocol of a classifier
- * @arg cls		classifier
- */
-int rtnl_cls_get_protocol(struct rtnl_cls *cls)
-{
-	if (cls->c_mask & CLS_ATTR_PROTOCOL)
-		return cls->c_protocol;
-	else
-		return 0;
-}
-
-/** @} */
-
-static struct nl_cache_ops rtnl_cls_ops = {
-	.co_name		= "route/cls",
-	.co_size		= sizeof(struct rtnl_cls),
-	.co_hdrsize		= sizeof(struct tcmsg),
-	.co_msgtypes		= {
-					{ RTM_NEWTFILTER, "new" },
-					{ RTM_DELTFILTER, "delete" },
-					{ RTM_GETTFILTER, "get" },
-					{ -1, NULL },
-				  },
-	.co_protocol		= NETLINK_ROUTE,
-	.co_request_update	= cls_request_update,
-	.co_filter		= cls_filter,
-	.co_free_data		= cls_free_data,
-	.co_msg_parser		= cls_msg_parser,
-	.co_dump[NL_DUMP_BRIEF]	= cls_dump_brief,
-	.co_dump[NL_DUMP_FULL]	= cls_dump_full,
-	.co_dump[NL_DUMP_STATS]	= cls_dump_stats,
-};
-
-static void __init cls_init(void)
-{
-	nl_cache_mngt_register(&rtnl_cls_ops);
-}
-
-static void __exit cls_exit(void)
-{
-	nl_cache_mngt_unregister(&rtnl_cls_ops);
-}
-
-/** @} */