aboutsummaryrefslogtreecommitdiff
path: root/net/sched
diff options
context:
space:
mode:
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/Kconfig50
-rw-r--r--net/sched/Makefile3
-rw-r--r--net/sched/act_api.c21
-rw-r--r--net/sched/cls_api.c7
-rw-r--r--net/sched/cls_rsvp.h1
-rw-r--r--net/sched/em_meta.c52
-rw-r--r--net/sched/em_text.c154
-rw-r--r--net/sched/sch_api.c75
-rw-r--r--net/sched/sch_blackhole.c54
-rw-r--r--net/sched/sch_cbq.c3
-rw-r--r--net/sched/sch_dsmark.c357
-rw-r--r--net/sched/sch_fifo.c152
-rw-r--r--net/sched/sch_generic.c122
-rw-r--r--net/sched/sch_red.c2
14 files changed, 597 insertions, 456 deletions
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index b22c9beb604..59d3e71f8b8 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -1,6 +1,43 @@
#
# Traffic control configuration.
#
+
+menuconfig NET_SCHED
+ bool "QoS and/or fair queueing"
+ ---help---
+ When the kernel has several packets to send out over a network
+ device, it has to decide which ones to send first, which ones to
+ delay, and which ones to drop. This is the job of the packet
+ scheduler, and several different algorithms for how to do this
+ "fairly" have been proposed.
+
+ If you say N here, you will get the standard packet scheduler, which
+ is a FIFO (first come, first served). If you say Y here, you will be
+ able to choose from among several alternative algorithms which can
+ then be attached to different network devices. This is useful for
+ example if some of your network devices are real time devices that
+ need a certain minimum data flow rate, or if you need to limit the
+ maximum data flow rate for traffic which matches specified criteria.
+ This code is considered to be experimental.
+
+ To administer these schedulers, you'll need the user-level utilities
+ from the package iproute2+tc at <ftp://ftp.tux.org/pub/net/ip-routing/>.
+ That package also contains some documentation; for more, check out
+ <http://snafu.freedom.org/linux2.2/iproute-notes.html>.
+
+ This Quality of Service (QoS) support will enable you to use
+ Differentiated Services (diffserv) and Resource Reservation Protocol
+ (RSVP) on your Linux router if you also say Y to "QoS support",
+ "Packet classifier API" and to some classifiers below. Documentation
+ and software is at <http://diffserv.sourceforge.net/>.
+
+ If you say Y here and to "/proc file system" below, you will be able
+ to read status information about packet schedulers from the file
+ /proc/net/psched.
+
+ The available schedulers are listed in the following questions; you
+ can say Y to as many as you like. If unsure, say N now.
+
choice
prompt "Packet scheduler clock source"
depends on NET_SCHED
@@ -449,6 +486,19 @@ config NET_EMATCH_META
To compile this code as a module, choose M here: the
module will be called em_meta.
+config NET_EMATCH_TEXT
+ tristate "Textsearch"
+ depends on NET_EMATCH
+ select TEXTSEARCH
+ select TEXTSEARCH_KMP
+ select TEXTSEARCH_FSM
+ ---help---
+ Say Y here if you want to be ablt to classify packets based on
+ textsearch comparisons.
+
+ To compile this code as a module, choose M here: the
+ module will be called em_text.
+
config NET_CLS_ACT
bool "Packet ACTION"
depends on EXPERIMENTAL && NET_CLS && NET_QOS
diff --git a/net/sched/Makefile b/net/sched/Makefile
index eb3fe583eba..e48d0d456b3 100644
--- a/net/sched/Makefile
+++ b/net/sched/Makefile
@@ -4,7 +4,7 @@
obj-y := sch_generic.o
-obj-$(CONFIG_NET_SCHED) += sch_api.o sch_fifo.o
+obj-$(CONFIG_NET_SCHED) += sch_api.o sch_fifo.o sch_blackhole.o
obj-$(CONFIG_NET_CLS) += cls_api.o
obj-$(CONFIG_NET_CLS_ACT) += act_api.o
obj-$(CONFIG_NET_ACT_POLICE) += police.o
@@ -40,3 +40,4 @@ obj-$(CONFIG_NET_EMATCH_CMP) += em_cmp.o
obj-$(CONFIG_NET_EMATCH_NBYTE) += em_nbyte.o
obj-$(CONFIG_NET_EMATCH_U32) += em_u32.o
obj-$(CONFIG_NET_EMATCH_META) += em_meta.o
+obj-$(CONFIG_NET_EMATCH_TEXT) += em_text.o
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 914c85ff8fe..249c61936ea 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -428,17 +428,19 @@ errout:
static int
tca_get_fill(struct sk_buff *skb, struct tc_action *a, u32 pid, u32 seq,
- unsigned flags, int event, int bind, int ref)
+ u16 flags, int event, int bind, int ref)
{
struct tcamsg *t;
struct nlmsghdr *nlh;
unsigned char *b = skb->tail;
struct rtattr *x;
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
- nlh->nlmsg_flags = flags;
+ nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
+
t = NLMSG_DATA(nlh);
t->tca_family = AF_UNSPEC;
+ t->tca__pad1 = 0;
+ t->tca__pad2 = 0;
x = (struct rtattr*) skb->tail;
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
@@ -580,6 +582,8 @@ static int tca_action_flush(struct rtattr *rta, struct nlmsghdr *n, u32 pid)
nlh = NLMSG_PUT(skb, pid, n->nlmsg_seq, RTM_DELACTION, sizeof(*t));
t = NLMSG_DATA(nlh);
t->tca_family = AF_UNSPEC;
+ t->tca__pad1 = 0;
+ t->tca__pad2 = 0;
x = (struct rtattr *) skb->tail;
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
@@ -669,7 +673,7 @@ err:
}
static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event,
- unsigned flags)
+ u16 flags)
{
struct tcamsg *t;
struct nlmsghdr *nlh;
@@ -684,11 +688,12 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event,
b = (unsigned char *)skb->tail;
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*t));
- nlh->nlmsg_flags = flags;
+ nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*t), flags);
t = NLMSG_DATA(nlh);
t->tca_family = AF_UNSPEC;
-
+ t->tca__pad1 = 0;
+ t->tca__pad2 = 0;
+
x = (struct rtattr*) skb->tail;
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
@@ -843,6 +848,8 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb)
cb->nlh->nlmsg_type, sizeof(*t));
t = NLMSG_DATA(nlh);
t->tca_family = AF_UNSPEC;
+ t->tca__pad1 = 0;
+ t->tca__pad2 = 0;
x = (struct rtattr *) skb->tail;
RTA_PUT(skb, TCA_ACT_TAB, 0, NULL);
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 56e66c3fe0f..3b5714ef4d1 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -322,16 +322,17 @@ errout:
static int
tcf_fill_node(struct sk_buff *skb, struct tcf_proto *tp, unsigned long fh,
- u32 pid, u32 seq, unsigned flags, int event)
+ u32 pid, u32 seq, u16 flags, int event)
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
unsigned char *b = skb->tail;
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*tcm));
- nlh->nlmsg_flags = flags;
+ nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
tcm = NLMSG_DATA(nlh);
tcm->tcm_family = AF_UNSPEC;
+ tcm->tcm__pad1 = 0;
+ tcm->tcm__pad1 = 0;
tcm->tcm_ifindex = tp->q->dev->ifindex;
tcm->tcm_parent = tp->classid;
tcm->tcm_info = TC_H_MAKE(tp->prio, tp->protocol);
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index 232fb919681..006168d6937 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -618,6 +618,7 @@ static int rsvp_dump(struct tcf_proto *tp, unsigned long fh,
pinfo.protocol = s->protocol;
pinfo.tunnelid = s->tunnelid;
pinfo.tunnelhdr = f->tunnelhdr;
+ pinfo.pad = 0;
RTA_PUT(skb, TCA_RSVP_PINFO, sizeof(pinfo), &pinfo);
if (f->res.classid)
RTA_PUT(skb, TCA_RSVP_CLASSID, 4, &f->res.classid);
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index 48bb23c2a35..a18b924743d 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -27,17 +27,17 @@
* lvalue rvalue
* +-----------+ +-----------+
* | type: INT | | type: INT |
- * def | id: INDEV | | id: VALUE |
+ * def | id: DEV | | id: VALUE |
* | data: | | data: 3 |
* +-----------+ +-----------+
* | |
- * ---> meta_ops[INT][INDEV](...) |
+ * ---> meta_ops[INT][DEV](...) |
* | |
* ----------- |
* V V
* +-----------+ +-----------+
* | type: INT | | type: INT |
- * obj | id: INDEV | | id: VALUE |
+ * obj | id: DEV | | id: VALUE |
* | data: 2 |<--data got filled out | data: 3 |
* +-----------+ +-----------+
* | |
@@ -170,26 +170,6 @@ META_COLLECTOR(var_dev)
*err = var_dev(skb->dev, dst);
}
-META_COLLECTOR(int_indev)
-{
- *err = int_dev(skb->input_dev, dst);
-}
-
-META_COLLECTOR(var_indev)
-{
- *err = var_dev(skb->input_dev, dst);
-}
-
-META_COLLECTOR(int_realdev)
-{
- *err = int_dev(skb->real_dev, dst);
-}
-
-META_COLLECTOR(var_realdev)
-{
- *err = var_dev(skb->real_dev, dst);
-}
-
/**************************************************************************
* skb attributes
**************************************************************************/
@@ -205,11 +185,6 @@ META_COLLECTOR(int_protocol)
dst->value = skb->protocol;
}
-META_COLLECTOR(int_security)
-{
- dst->value = skb->security;
-}
-
META_COLLECTOR(int_pkttype)
{
dst->value = skb->pkt_type;
@@ -250,18 +225,6 @@ META_COLLECTOR(int_tcindex)
dst->value = skb->tc_index;
}
-#ifdef CONFIG_NET_CLS_ACT
-META_COLLECTOR(int_tcverd)
-{
- dst->value = skb->tc_verd;
-}
-
-META_COLLECTOR(int_tcclassid)
-{
- dst->value = skb->tc_classid;
-}
-#endif
-
/**************************************************************************
* Routing
**************************************************************************/
@@ -510,8 +473,6 @@ struct meta_ops
static struct meta_ops __meta_ops[TCF_META_TYPE_MAX+1][TCF_META_ID_MAX+1] = {
[TCF_META_TYPE_VAR] = {
[META_ID(DEV)] = META_FUNC(var_dev),
- [META_ID(INDEV)] = META_FUNC(var_indev),
- [META_ID(REALDEV)] = META_FUNC(var_realdev),
[META_ID(SK_BOUND_IF)] = META_FUNC(var_sk_bound_if),
},
[TCF_META_TYPE_INT] = {
@@ -520,11 +481,8 @@ static struct meta_ops __meta_ops[TCF_META_TYPE_MAX+1][TCF_META_ID_MAX+1] = {
[META_ID(LOADAVG_1)] = META_FUNC(int_loadavg_1),
[META_ID(LOADAVG_2)] = META_FUNC(int_loadavg_2),
[META_ID(DEV)] = META_FUNC(int_dev),
- [META_ID(INDEV)] = META_FUNC(int_indev),
- [META_ID(REALDEV)] = META_FUNC(int_realdev),
[META_ID(PRIORITY)] = META_FUNC(int_priority),
[META_ID(PROTOCOL)] = META_FUNC(int_protocol),
- [META_ID(SECURITY)] = META_FUNC(int_security),
[META_ID(PKTTYPE)] = META_FUNC(int_pkttype),
[META_ID(PKTLEN)] = META_FUNC(int_pktlen),
[META_ID(DATALEN)] = META_FUNC(int_datalen),
@@ -533,10 +491,6 @@ static struct meta_ops __meta_ops[TCF_META_TYPE_MAX+1][TCF_META_ID_MAX+1] = {
[META_ID(NFMARK)] = META_FUNC(int_nfmark),
#endif
[META_ID(TCINDEX)] = META_FUNC(int_tcindex),
-#ifdef CONFIG_NET_CLS_ACT
- [META_ID(TCVERDICT)] = META_FUNC(int_tcverd),
- [META_ID(TCCLASSID)] = META_FUNC(int_tcclassid),
-#endif
#ifdef CONFIG_NET_CLS_ROUTE
[META_ID(RTCLASSID)] = META_FUNC(int_rtclassid),
#endif
diff --git a/net/sched/em_text.c b/net/sched/em_text.c
new file mode 100644
index 00000000000..77beabc91fa
--- /dev/null
+++ b/net/sched/em_text.c
@@ -0,0 +1,154 @@
+/*
+ * net/sched/em_text.c Textsearch ematch
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Thomas Graf <tgraf@suug.ch>
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/string.h>
+#include <linux/skbuff.h>
+#include <linux/textsearch.h>
+#include <linux/tc_ematch/tc_em_text.h>
+#include <net/pkt_cls.h>
+
+struct text_match
+{
+ u16 from_offset;
+ u16 to_offset;
+ u8 from_layer;
+ u8 to_layer;
+ struct ts_config *config;
+};
+
+#define EM_TEXT_PRIV(m) ((struct text_match *) (m)->data)
+
+static int em_text_match(struct sk_buff *skb, struct tcf_ematch *m,
+ struct tcf_pkt_info *info)
+{
+ struct text_match *tm = EM_TEXT_PRIV(m);
+ int from, to;
+ struct ts_state state;
+
+ from = tcf_get_base_ptr(skb, tm->from_layer) - skb->data;
+ from += tm->from_offset;
+
+ to = tcf_get_base_ptr(skb, tm->to_layer) - skb->data;
+ to += tm->to_offset;
+
+ return skb_find_text(skb, from, to, tm->config, &state) != UINT_MAX;
+}
+
+static int em_text_change(struct tcf_proto *tp, void *data, int len,
+ struct tcf_ematch *m)
+{
+ struct text_match *tm;
+ struct tcf_em_text *conf = data;
+ struct ts_config *ts_conf;
+ int flags = 0;
+
+ if (len < sizeof(*conf) || len < (sizeof(*conf) + conf->pattern_len))
+ return -EINVAL;
+
+ if (conf->from_layer > conf->to_layer)
+ return -EINVAL;
+
+ if (conf->from_layer == conf->to_layer &&
+ conf->from_offset > conf->to_offset)
+ return -EINVAL;
+
+retry:
+ ts_conf = textsearch_prepare(conf->algo, (u8 *) conf + sizeof(*conf),
+ conf->pattern_len, GFP_KERNEL, flags);
+
+ if (flags & TS_AUTOLOAD)
+ rtnl_lock();
+
+ if (IS_ERR(ts_conf)) {
+ if (PTR_ERR(ts_conf) == -ENOENT && !(flags & TS_AUTOLOAD)) {
+ rtnl_unlock();
+ flags |= TS_AUTOLOAD;
+ goto retry;
+ } else
+ return PTR_ERR(ts_conf);
+ } else if (flags & TS_AUTOLOAD) {
+ textsearch_destroy(ts_conf);
+ return -EAGAIN;
+ }
+
+ tm = kmalloc(sizeof(*tm), GFP_KERNEL);
+ if (tm == NULL) {
+ textsearch_destroy(ts_conf);
+ return -ENOBUFS;
+ }
+
+ tm->from_offset = conf->from_offset;
+ tm->to_offset = conf->to_offset;
+ tm->from_layer = conf->from_layer;
+ tm->to_layer = conf->to_layer;
+ tm->config = ts_conf;
+
+ m->datalen = sizeof(*tm);
+ m->data = (unsigned long) tm;
+
+ return 0;
+}
+
+static void em_text_destroy(struct tcf_proto *tp, struct tcf_ematch *m)
+{
+ textsearch_destroy(EM_TEXT_PRIV(m)->config);
+}
+
+static int em_text_dump(struct sk_buff *skb, struct tcf_ematch *m)
+{
+ struct text_match *tm = EM_TEXT_PRIV(m);
+ struct tcf_em_text conf;
+
+ strncpy(conf.algo, tm->config->ops->name, sizeof(conf.algo) - 1);
+ conf.from_offset = tm->from_offset;
+ conf.to_offset = tm->to_offset;
+ conf.from_layer = tm->from_layer;
+ conf.to_layer = tm->to_layer;
+ conf.pattern_len = textsearch_get_pattern_len(tm->config);
+ conf.pad = 0;
+
+ RTA_PUT_NOHDR(skb, sizeof(conf), &conf);
+ RTA_APPEND(skb, conf.pattern_len, textsearch_get_pattern(tm->config));
+ return 0;
+
+rtattr_failure:
+ return -1;
+}
+
+static struct tcf_ematch_ops em_text_ops = {
+ .kind = TCF_EM_TEXT,
+ .change = em_text_change,
+ .match = em_text_match,
+ .destroy = em_text_destroy,
+ .dump = em_text_dump,
+ .owner = THIS_MODULE,
+ .link = LIST_HEAD_INIT(em_text_ops.link)
+};
+
+static int __init init_em_text(void)
+{
+ return tcf_em_register(&em_text_ops);
+}
+
+static void __exit exit_em_text(void)
+{
+ tcf_em_unregister(&em_text_ops);
+}
+
+MODULE_LICENSE("GPL");
+
+module_init(init_em_text);
+module_exit(exit_em_text);
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 07977f8f267..b9a069af4a0 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -399,10 +399,8 @@ qdisc_create(struct net_device *dev, u32 handle, struct rtattr **tca, int *errp)
{
int err;
struct rtattr *kind = tca[TCA_KIND-1];
- void *p = NULL;
struct Qdisc *sch;
struct Qdisc_ops *ops;
- int size;
ops = qdisc_lookup_ops(kind);
#ifdef CONFIG_KMOD
@@ -437,64 +435,55 @@ qdisc_create(struct net_device *dev, u32 handle, struct rtattr **tca, int *errp)
if (ops == NULL)
goto err_out;
- /* ensure that the Qdisc and the private data are 32-byte aligned */
- size = ((sizeof(*sch) + QDISC_ALIGN_CONST) & ~QDISC_ALIGN_CONST);
- size += ops->priv_size + QDISC_ALIGN_CONST;
-
- p = kmalloc(size, GFP_KERNEL);
- err = -ENOBUFS;
- if (!p)
+ sch = qdisc_alloc(dev, ops);
+ if (IS_ERR(sch)) {
+ err = PTR_ERR(sch);
goto err_out2;
- memset(p, 0, size);
- sch = (struct Qdisc *)(((unsigned long)p + QDISC_ALIGN_CONST)
- & ~QDISC_ALIGN_CONST);
- sch->padded = (char *)sch - (char *)p;
-
- INIT_LIST_HEAD(&sch->list);
- skb_queue_head_init(&sch->q);
+ }
- if (handle == TC_H_INGRESS)
+ if (handle == TC_H_INGRESS) {
sch->flags |= TCQ_F_INGRESS;
-
- sch->ops = ops;
- sch->enqueue = ops->enqueue;
- sch->dequeue = ops->dequeue;
- sch->dev = dev;
- dev_hold(dev);
- atomic_set(&sch->refcnt, 1);
- sch->stats_lock = &dev->queue_lock;
- if (handle == 0) {
+ handle = TC_H_MAKE(TC_H_INGRESS, 0);
+ } else if (handle == 0) {
handle = qdisc_alloc_handle(dev);
err = -ENOMEM;
if (handle == 0)
goto err_out3;
}
- if (handle == TC_H_INGRESS)
- sch->handle =TC_H_MAKE(TC_H_INGRESS, 0);
- else
- sch->handle = handle;
+ sch->handle = handle;
if (!ops->init || (err = ops->init(sch, tca[TCA_OPTIONS-1])) == 0) {
+#ifdef CONFIG_NET_ESTIMATOR
+ if (tca[TCA_RATE-1]) {
+ err = gen_new_estimator(&sch->bstats, &sch->rate_est,
+ sch->stats_lock,
+ tca[TCA_RATE-1]);
+ if (err) {
+ /*
+ * Any broken qdiscs that would require
+ * a ops->reset() here? The qdisc was never
+ * in action so it shouldn't be necessary.
+ */
+ if (ops->destroy)
+ ops->destroy(sch);
+ goto err_out3;
+ }
+ }
+#endif
qdisc_lock_tree(dev);
list_add_tail(&sch->list, &dev->qdisc_list);
qdisc_unlock_tree(dev);
-#ifdef CONFIG_NET_ESTIMATOR
- if (tca[TCA_RATE-1])
- gen_new_estimator(&sch->bstats, &sch->rate_est,
- sch->stats_lock, tca[TCA_RATE-1]);
-#endif
return sch;
}
err_out3:
dev_put(dev);
+ kfree((char *) sch - sch->padded);
err_out2:
module_put(ops->owner);
err_out:
*errp = err;
- if (p)
- kfree(p);
return NULL;
}
@@ -760,17 +749,18 @@ graft:
}
static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
- u32 pid, u32 seq, unsigned flags, int event)
+ u32 pid, u32 seq, u16 flags, int event)
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
unsigned char *b = skb->tail;
struct gnet_dump d;
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*tcm));
- nlh->nlmsg_flags = flags;
+ nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
tcm = NLMSG_DATA(nlh);
tcm->tcm_family = AF_UNSPEC;
+ tcm->tcm__pad1 = 0;
+ tcm->tcm__pad2 = 0;
tcm->tcm_ifindex = q->dev->ifindex;
tcm->tcm_parent = clid;
tcm->tcm_handle = q->handle;
@@ -997,7 +987,7 @@ out:
static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
unsigned long cl,
- u32 pid, u32 seq, unsigned flags, int event)
+ u32 pid, u32 seq, u16 flags, int event)
{
struct tcmsg *tcm;
struct nlmsghdr *nlh;
@@ -1005,8 +995,7 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
struct gnet_dump d;
struct Qdisc_class_ops *cl_ops = q->ops->cl_ops;
- nlh = NLMSG_PUT(skb, pid, seq, event, sizeof(*tcm));
- nlh->nlmsg_flags = flags;
+ nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
tcm = NLMSG_DATA(nlh);
tcm->tcm_family = AF_UNSPEC;
tcm->tcm_ifindex = q->dev->ifindex;
diff --git a/net/sched/sch_blackhole.c b/net/sched/sch_blackhole.c
new file mode 100644
index 00000000000..81f0b8346d1
--- /dev/null
+++ b/net/sched/sch_blackhole.c
@@ -0,0 +1,54 @@
+/*
+ * net/sched/sch_blackhole.c Black hole queue
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Thomas Graf <tgraf@suug.ch>
+ *
+ * Note: Quantum tunneling is not supported.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <net/pkt_sched.h>
+
+static int blackhole_enqueue(struct sk_buff *skb, struct Qdisc *sch)
+{
+ qdisc_drop(skb, sch);
+ return NET_XMIT_SUCCESS;
+}
+
+static struct sk_buff *blackhole_dequeue(struct Qdisc *sch)
+{
+ return NULL;
+}
+
+static struct Qdisc_ops blackhole_qdisc_ops = {
+ .id = "blackhole",
+ .priv_size = 0,
+ .enqueue = blackhole_enqueue,
+ .dequeue = blackhole_dequeue,
+ .owner = THIS_MODULE,
+};
+
+static int __init blackhole_module_init(void)
+{
+ return register_qdisc(&blackhole_qdisc_ops);
+}
+
+static void __exit blackhole_module_exit(void)
+{
+ unregister_qdisc(&blackhole_qdisc_ops);
+}
+
+module_init(blackhole_module_init)
+module_exit(blackhole_module_exit)
+
+MODULE_LICENSE("GPL");
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index d43e3b8cbf6..09453f997d8 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1528,6 +1528,7 @@ static __inline__ int cbq_dump_ovl(struct sk_buff *skb, struct cbq_class *cl)
opt.strategy = cl->ovl_strategy;
opt.priority2 = cl->priority2+1;
+ opt.pad = 0;
opt.penalty = (cl->penalty*1000)/HZ;
RTA_PUT(skb, TCA_CBQ_OVL_STRATEGY, sizeof(opt), &opt);
return skb->len;
@@ -1563,6 +1564,8 @@ static __inline__ int cbq_dump_police(struct sk_buff *skb, struct cbq_class *cl)
if (cl->police) {
opt.police = cl->police;
+ opt.__res1 = 0;
+ opt.__res2 = 0;
RTA_PUT(skb, TCA_CBQ_POLICE, sizeof(opt), &opt);
}
return skb->len;
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index d8bd2a569c7..13e0e7b3856 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -31,7 +31,7 @@
#endif
-#define PRIV(sch) qdisc_priv(sch)
+#define PRIV(sch) ((struct dsmark_qdisc_data *) qdisc_priv(sch))
/*
@@ -55,24 +55,38 @@
struct dsmark_qdisc_data {
struct Qdisc *q;
struct tcf_proto *filter_list;
- __u8 *mask; /* "owns" the array */
- __u8 *value;
- __u16 indices;
- __u32 default_index; /* index range is 0...0xffff */
+ u8 *mask; /* "owns" the array */
+ u8 *value;
+ u16 indices;
+ u32 default_index; /* index range is 0...0xffff */
int set_tc_index;
};
+static inline int dsmark_valid_indices(u16 indices)
+{
+ while (indices != 1) {
+ if (indices & 1)
+ return 0;
+ indices >>= 1;
+ }
+
+ return 1;
+}
-/* ------------------------- Class/flow operations ------------------------- */
+static inline int dsmark_valid_index(struct dsmark_qdisc_data *p, u16 index)
+{
+ return (index <= p->indices && index > 0);
+}
+/* ------------------------- Class/flow operations ------------------------- */
-static int dsmark_graft(struct Qdisc *sch,unsigned long arg,
- struct Qdisc *new,struct Qdisc **old)
+static int dsmark_graft(struct Qdisc *sch, unsigned long arg,
+ struct Qdisc *new, struct Qdisc **old)
{
struct dsmark_qdisc_data *p = PRIV(sch);
- DPRINTK("dsmark_graft(sch %p,[qdisc %p],new %p,old %p)\n",sch,p,new,
- old);
+ DPRINTK("dsmark_graft(sch %p,[qdisc %p],new %p,old %p)\n",
+ sch, p, new, old);
if (new == NULL) {
new = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
@@ -81,91 +95,95 @@ static int dsmark_graft(struct Qdisc *sch,unsigned long arg,
}
sch_tree_lock(sch);
- *old = xchg(&p->q,new);
- if (*old)
- qdisc_reset(*old);
+ *old = xchg(&p->q, new);
+ qdisc_reset(*old);
sch->q.qlen = 0;
- sch_tree_unlock(sch); /* @@@ move up ? */
+ sch_tree_unlock(sch);
+
return 0;
}
-
static struct Qdisc *dsmark_leaf(struct Qdisc *sch, unsigned long arg)
{
- struct dsmark_qdisc_data *p = PRIV(sch);
-
- return p->q;
+ return PRIV(sch)->q;
}
-
-static unsigned long dsmark_get(struct Qdisc *sch,u32 classid)
+static unsigned long dsmark_get(struct Qdisc *sch, u32 classid)
{
- struct dsmark_qdisc_data *p __attribute__((unused)) = PRIV(sch);
+ DPRINTK("dsmark_get(sch %p,[qdisc %p],classid %x)\n",
+ sch, PRIV(sch), classid);
- DPRINTK("dsmark_get(sch %p,[qdisc %p],classid %x)\n",sch,p,classid);
- return TC_H_MIN(classid)+1;
+ return TC_H_MIN(classid) + 1;
}
-
static unsigned long dsmark_bind_filter(struct Qdisc *sch,
- unsigned long parent, u32 classid)
+ unsigned long parent, u32 classid)
{
- return dsmark_get(sch,classid);
+ return dsmark_get(sch, classid);
}
-
static void dsmark_put(struct Qdisc *sch, unsigned long cl)
{
}
-
static int dsmark_change(struct Qdisc *sch, u32 classid, u32 parent,
- struct rtattr **tca, unsigned long *arg)
+ struct rtattr **tca, unsigned long *arg)
{
struct dsmark_qdisc_data *p = PRIV(sch);
struct rtattr *opt = tca[TCA_OPTIONS-1];
struct rtattr *tb[TCA_DSMARK_MAX];
+ int err = -EINVAL;
+ u8 mask = 0;
DPRINTK("dsmark_change(sch %p,[qdisc %p],classid %x,parent %x),"
- "arg 0x%lx\n",sch,p,classid,parent,*arg);
- if (*arg > p->indices)
- return -ENOENT;
- if (!opt || rtattr_parse_nested(tb, TCA_DSMARK_MAX, opt))
- return -EINVAL;
- if (tb[TCA_DSMARK_MASK-1]) {
- if (!RTA_PAYLOAD(tb[TCA_DSMARK_MASK-1]))
- return -EINVAL;
- p->mask[*arg-1] = *(__u8 *) RTA_DATA(tb[TCA_DSMARK_MASK-1]);
- }
- if (tb[TCA_DSMARK_VALUE-1]) {
- if (!RTA_PAYLOAD(tb[TCA_DSMARK_VALUE-1]))
- return -EINVAL;
- p->value[*arg-1] = *(__u8 *) RTA_DATA(tb[TCA_DSMARK_VALUE-1]);
+ "arg 0x%lx\n", sch, p, classid, parent, *arg);
+
+ if (!dsmark_valid_index(p, *arg)) {
+ err = -ENOENT;
+ goto rtattr_failure;
}
- return 0;
-}
+ if (!opt || rtattr_parse_nested(tb, TCA_DSMARK_MAX, opt))
+ goto rtattr_failure;
+
+ if (tb[TCA_DSMARK_MASK-1])
+ mask = RTA_GET_U8(tb[TCA_DSMARK_MASK-1]);
+
+ if (tb[TCA_DSMARK_VALUE-1])
+ p->value[*arg-1] = RTA_GET_U8(tb[TCA_DSMARK_VALUE-1]);
+
+ if (tb[TCA_DSMARK_MASK-1])
+ p->mask[*arg-1] = mask;
+
+ err = 0;
-static int dsmark_delete(struct Qdisc *sch,unsigned long arg)
+rtattr_failure:
+ return err;
+}
+
+static int dsmark_delete(struct Qdisc *sch, unsigned long arg)
{
struct dsmark_qdisc_data *p = PRIV(sch);
- if (!arg || arg > p->indices)
+ if (!dsmark_valid_index(p, arg))
return -EINVAL;
+
p->mask[arg-1] = 0xff;
p->value[arg-1] = 0;
+
return 0;
}
-
static void dsmark_walk(struct Qdisc *sch,struct qdisc_walker *walker)
{
struct dsmark_qdisc_data *p = PRIV(sch);
int i;
- DPRINTK("dsmark_walk(sch %p,[qdisc %p],walker %p)\n",sch,p,walker);
+ DPRINTK("dsmark_walk(sch %p,[qdisc %p],walker %p)\n", sch, p, walker);
+
if (walker->stop)
return;
+
for (i = 0; i < p->indices; i++) {
if (p->mask[i] == 0xff && !p->value[i])
goto ignore;
@@ -180,26 +198,20 @@ ignore:
}
}
-
static struct tcf_proto **dsmark_find_tcf(struct Qdisc *sch,unsigned long cl)
{
- struct dsmark_qdisc_data *p = PRIV(sch);
-
- return &p->filter_list;
+ return &PRIV(sch)->filter_list;
}
-
/* --------------------------- Qdisc operations ---------------------------- */
-
static int dsmark_enqueue(struct sk_buff *skb,struct Qdisc *sch)
{
struct dsmark_qdisc_data *p = PRIV(sch);
- struct tcf_result res;
- int result;
- int ret = NET_XMIT_POLICED;
+ int err;
+
+ D2PRINTK("dsmark_enqueue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p);
- D2PRINTK("dsmark_enqueue(skb %p,sch %p,[qdisc %p])\n",skb,sch,p);
if (p->set_tc_index) {
/* FIXME: Safe with non-linear skbs? --RR */
switch (skb->protocol) {
@@ -216,17 +228,21 @@ static int dsmark_enqueue(struct sk_buff *skb,struct Qdisc *sch)
break;
};
}
- result = TC_POLICE_OK; /* be nice to gcc */
- if (TC_H_MAJ(skb->priority) == sch->handle) {
+
+ if (TC_H_MAJ(skb->priority) == sch->handle)
skb->tc_index = TC_H_MIN(skb->priority);
- } else {
- result = tc_classify(skb,p->filter_list,&res);
- D2PRINTK("result %d class 0x%04x\n",result,res.classid);
+ else {
+ struct tcf_result res;
+ int result = tc_classify(skb, p->filter_list, &res);
+
+ D2PRINTK("result %d class 0x%04x\n", result, res.classid);
+
switch (result) {
#ifdef CONFIG_NET_CLS_POLICE
case TC_POLICE_SHOT:
kfree_skb(skb);
- break;
+ sch->qstats.drops++;
+ return NET_XMIT_POLICED;
#if 0
case TC_POLICE_RECLASSIFY:
/* FIXME: what to do here ??? */
@@ -243,43 +259,45 @@ static int dsmark_enqueue(struct sk_buff *skb,struct Qdisc *sch)
break;
};
}
- if (
-#ifdef CONFIG_NET_CLS_POLICE
- result == TC_POLICE_SHOT ||
-#endif
- ((ret = p->q->enqueue(skb,p->q)) != 0)) {
+ err = p->q->enqueue(skb,p->q);
+ if (err != NET_XMIT_SUCCESS) {
sch->qstats.drops++;
- return ret;
+ return err;
}
+
sch->bstats.bytes += skb->len;
sch->bstats.packets++;
sch->q.qlen++;
- return ret;
-}
+ return NET_XMIT_SUCCESS;
+}
static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
{
struct dsmark_qdisc_data *p = PRIV(sch);
struct sk_buff *skb;
- int index;
+ u32 index;
+
+ D2PRINTK("dsmark_dequeue(sch %p,[qdisc %p])\n", sch, p);
- D2PRINTK("dsmark_dequeue(sch %p,[qdisc %p])\n",sch,p);
skb = p->q->ops->dequeue(p->q);
- if (!skb)
+ if (skb == NULL)
return NULL;
+
sch->q.qlen--;
- index = skb->tc_index & (p->indices-1);
- D2PRINTK("index %d->%d\n",skb->tc_index,index);
+
+ index = skb->tc_index & (p->indices - 1);
+ D2PRINTK("index %d->%d\n", skb->tc_index, index);
+
switch (skb->protocol) {
case __constant_htons(ETH_P_IP):
- ipv4_change_dsfield(skb->nh.iph,
- p->mask[index],p->value[index]);
+ ipv4_change_dsfield(skb->nh.iph, p->mask[index],
+ p->value[index]);
break;
case __constant_htons(ETH_P_IPV6):
- ipv6_change_dsfield(skb->nh.ipv6h,
- p->mask[index],p->value[index]);
+ ipv6_change_dsfield(skb->nh.ipv6h, p->mask[index],
+ p->value[index]);
break;
default:
/*
@@ -293,152 +311,162 @@ static struct sk_buff *dsmark_dequeue(struct Qdi