diff options
author | David S. Miller <davem@sunset.davemloft.net> | 2006-08-21 23:54:55 -0700 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 14:55:10 -0700 |
commit | e9ce1cd3cf6cf35b21d0ce990f2e738f35907386 (patch) | |
tree | 22a3ee7b78ae7cbf00520c66dcc389d87740069c /net/sched | |
parent | 2e4ca75b31b6851dcc036c2cdebf3ecfe279a653 (diff) |
[PKT_SCHED]: Kill pkt_act.h inlining.
This was simply making templates of functions and mostly causing a lot
of code duplication in the classifier action modules.
We solve this more cleanly by having a common "struct tcf_common" that
hash worker functions contained once in act_api.c can work with.
Callers work with real action objects that have the common struct
plus their module specific struct members. You go from a common
object to the higher level one using a "to_foo()" macro which makes
use of container_of() to do the dirty work.
This also kills off act_generic.h which was only used by act_simple.c
and keeping it around was more work than the it's value.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r-- | net/sched/act_api.c | 246 | ||||
-rw-r--r-- | net/sched/act_gact.c | 142 | ||||
-rw-r--r-- | net/sched/act_ipt.c | 175 | ||||
-rw-r--r-- | net/sched/act_mirred.c | 159 | ||||
-rw-r--r-- | net/sched/act_pedit.c | 166 | ||||
-rw-r--r-- | net/sched/act_police.c | 508 | ||||
-rw-r--r-- | net/sched/act_simple.c | 183 |
7 files changed, 932 insertions, 647 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 6990747d6d5..835070e9169 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -33,16 +33,230 @@ #include <net/sch_generic.h> #include <net/act_api.h> -#if 0 /* control */ -#define DPRINTK(format, args...) printk(KERN_DEBUG format, ##args) -#else -#define DPRINTK(format, args...) +void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo) +{ + unsigned int h = tcf_hash(p->tcfc_index, hinfo->hmask); + struct tcf_common **p1p; + + for (p1p = &hinfo->htab[h]; *p1p; p1p = &(*p1p)->tcfc_next) { + if (*p1p == p) { + write_lock_bh(hinfo->lock); + *p1p = p->tcfc_next; + write_unlock_bh(hinfo->lock); +#ifdef CONFIG_NET_ESTIMATOR + gen_kill_estimator(&p->tcfc_bstats, + &p->tcfc_rate_est); #endif -#if 0 /* data */ -#define D2PRINTK(format, args...) printk(KERN_DEBUG format, ##args) -#else -#define D2PRINTK(format, args...) + kfree(p); + return; + } + } + BUG_TRAP(0); +} +EXPORT_SYMBOL(tcf_hash_destroy); + +int tcf_hash_release(struct tcf_common *p, int bind, + struct tcf_hashinfo *hinfo) +{ + int ret = 0; + + if (p) { + if (bind) + p->tcfc_bindcnt--; + + p->tcfc_refcnt--; + if (p->tcfc_bindcnt <= 0 && p->tcfc_refcnt <= 0) { + tcf_hash_destroy(p, hinfo); + ret = 1; + } + } + return ret; +} +EXPORT_SYMBOL(tcf_hash_release); + +static int tcf_dump_walker(struct sk_buff *skb, struct netlink_callback *cb, + struct tc_action *a, struct tcf_hashinfo *hinfo) +{ + struct tcf_common *p; + int err = 0, index = -1,i = 0, s_i = 0, n_i = 0; + struct rtattr *r ; + + read_lock(hinfo->lock); + + s_i = cb->args[0]; + + for (i = 0; i < (hinfo->hmask + 1); i++) { + p = hinfo->htab[tcf_hash(i, hinfo->hmask)]; + + for (; p; p = p->tcfc_next) { + index++; + if (index < s_i) + continue; + a->priv = p; + a->order = n_i; + r = (struct rtattr*) skb->tail; + RTA_PUT(skb, a->order, 0, NULL); + err = tcf_action_dump_1(skb, a, 0, 0); + if (err < 0) { + index--; + skb_trim(skb, (u8*)r - skb->data); + goto done; + } + r->rta_len = skb->tail - (u8*)r; + n_i++; + if (n_i >= TCA_ACT_MAX_PRIO) + goto done; + } + } +done: + read_unlock(hinfo->lock); + if (n_i) + cb->args[0] += n_i; + return n_i; + +rtattr_failure: + skb_trim(skb, (u8*)r - skb->data); + goto done; +} + +static int tcf_del_walker(struct sk_buff *skb, struct tc_action *a, + struct tcf_hashinfo *hinfo) +{ + struct tcf_common *p, *s_p; + struct rtattr *r ; + int i= 0, n_i = 0; + + r = (struct rtattr*) skb->tail; + RTA_PUT(skb, a->order, 0, NULL); + RTA_PUT(skb, TCA_KIND, IFNAMSIZ, a->ops->kind); + for (i = 0; i < (hinfo->hmask + 1); i++) { + p = hinfo->htab[tcf_hash(i, hinfo->hmask)]; + + while (p != NULL) { + s_p = p->tcfc_next; + if (ACT_P_DELETED == tcf_hash_release(p, 0, hinfo)) + module_put(a->ops->owner); + n_i++; + p = s_p; + } + } + RTA_PUT(skb, TCA_FCNT, 4, &n_i); + r->rta_len = skb->tail - (u8*)r; + + return n_i; +rtattr_failure: + skb_trim(skb, (u8*)r - skb->data); + return -EINVAL; +} + +int tcf_generic_walker(struct sk_buff *skb, struct netlink_callback *cb, + int type, struct tc_action *a) +{ + struct tcf_hashinfo *hinfo = a->ops->hinfo; + + if (type == RTM_DELACTION) { + return tcf_del_walker(skb, a, hinfo); + } else if (type == RTM_GETACTION) { + return tcf_dump_walker(skb, cb, a, hinfo); + } else { + printk("tcf_generic_walker: unknown action %d\n", type); + return -EINVAL; + } +} +EXPORT_SYMBOL(tcf_generic_walker); + +struct tcf_common *tcf_hash_lookup(u32 index, struct tcf_hashinfo *hinfo) +{ + struct tcf_common *p; + + read_lock(hinfo->lock); + for (p = hinfo->htab[tcf_hash(index, hinfo->hmask)]; p; + p = p->tcfc_next) { + if (p->tcfc_index == index) + break; + } + read_unlock(hinfo->lock); + + return p; +} +EXPORT_SYMBOL(tcf_hash_lookup); + +u32 tcf_hash_new_index(u32 *idx_gen, struct tcf_hashinfo *hinfo) +{ + u32 val = *idx_gen; + + do { + if (++val == 0) + val = 1; + } while (tcf_hash_lookup(val, hinfo)); + + return (*idx_gen = val); +} +EXPORT_SYMBOL(tcf_hash_new_index); + +int tcf_hash_search(struct tc_action *a, u32 index) +{ + struct tcf_hashinfo *hinfo = a->ops->hinfo; + struct tcf_common *p = tcf_hash_lookup(index, hinfo); + + if (p) { + a->priv = p; + return 1; + } + return 0; +} +EXPORT_SYMBOL(tcf_hash_search); + +struct tcf_common *tcf_hash_check(u32 index, struct tc_action *a, int bind, + struct tcf_hashinfo *hinfo) +{ + struct tcf_common *p = NULL; + if (index && (p = tcf_hash_lookup(index, hinfo)) != NULL) { + if (bind) { + p->tcfc_bindcnt++; + p->tcfc_refcnt++; + } + a->priv = p; + } + return p; +} +EXPORT_SYMBOL(tcf_hash_check); + +struct tcf_common *tcf_hash_create(u32 index, struct rtattr *est, struct tc_action *a, int size, int bind, u32 *idx_gen, struct tcf_hashinfo *hinfo) +{ + struct tcf_common *p = kzalloc(size, GFP_KERNEL); + + if (unlikely(!p)) + return p; + p->tcfc_refcnt = 1; + if (bind) + p->tcfc_bindcnt = 1; + + spin_lock_init(&p->tcfc_lock); + p->tcfc_stats_lock = &p->tcfc_lock; + p->tcfc_index = index ? index : tcf_hash_new_index(idx_gen, hinfo); + p->tcfc_tm.install = jiffies; + p->tcfc_tm.lastuse = jiffies; +#ifdef CONFIG_NET_ESTIMATOR + if (est) + gen_new_estimator(&p->tcfc_bstats, &p->tcfc_rate_est, + p->tcfc_stats_lock, est); #endif + a->priv = (void *) p; + return p; +} +EXPORT_SYMBOL(tcf_hash_create); + +void tcf_hash_insert(struct tcf_common *p, struct tcf_hashinfo *hinfo) +{ + unsigned int h = tcf_hash(p->tcfc_index, hinfo->hmask); + + write_lock_bh(hinfo->lock); + p->tcfc_next = hinfo->htab[h]; + hinfo->htab[h] = p; + write_unlock_bh(hinfo->lock); +} +EXPORT_SYMBOL(tcf_hash_insert); static struct tc_action_ops *act_base = NULL; static DEFINE_RWLOCK(act_mod_lock); @@ -155,9 +369,6 @@ int tcf_action_exec(struct sk_buff *skb, struct tc_action *act, if (skb->tc_verd & TC_NCLS) { skb->tc_verd = CLR_TC_NCLS(skb->tc_verd); - D2PRINTK("(%p)tcf_action_exec: cleared TC_NCLS in %s out %s\n", - skb, skb->input_dev ? skb->input_dev->name : "xxx", - skb->dev->name); ret = TC_ACT_OK; goto exec_done; } @@ -187,8 +398,6 @@ void tcf_action_destroy(struct tc_action *act, int bind) for (a = act; a; a = act) { if (a->ops && a->ops->cleanup) { - DPRINTK("tcf_action_destroy destroying %p next %p\n", - a, a->next); if (a->ops->cleanup(a, bind) == ACT_P_DELETED) module_put(a->ops->owner); act = act->next; @@ -331,7 +540,6 @@ struct tc_action *tcf_action_init_1(struct rtattr *rta, struct rtattr *est, if (*err != ACT_P_CREATED) module_put(a_o->owner); a->ops = a_o; - DPRINTK("tcf_action_init_1: successfull %s\n", act_name); *err = 0; return a; @@ -392,12 +600,12 @@ int tcf_action_copy_stats(struct sk_buff *skb, struct tc_action *a, if (compat_mode) { if (a->type == TCA_OLD_COMPAT) err = gnet_stats_start_copy_compat(skb, 0, - TCA_STATS, TCA_XSTATS, h->stats_lock, &d); + TCA_STATS, TCA_XSTATS, h->tcf_stats_lock, &d); else return 0; } else err = gnet_stats_start_copy(skb, TCA_ACT_STATS, - h->stats_lock, &d); + h->tcf_stats_lock, &d); if (err < 0) goto errout; @@ -406,11 +614,11 @@ int tcf_action_copy_stats(struct sk_buff *skb, struct tc_action *a, if (a->ops->get_stats(skb, a) < 0) goto errout; - if (gnet_stats_copy_basic(&d, &h->bstats) < 0 || + if (gnet_stats_copy_basic(&d, &h->tcf_bstats) < 0 || #ifdef CONFIG_NET_ESTIMATOR - gnet_stats_copy_rate_est(&d, &h->rate_est) < 0 || + gnet_stats_copy_rate_est(&d, &h->tcf_rate_est) < 0 || #endif - gnet_stats_copy_queue(&d, &h->qstats) < 0) + gnet_stats_copy_queue(&d, &h->tcf_qstats) < 0) goto errout; if (gnet_stats_finish_copy(&d) < 0) diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index e75a147ad60..6cff56696a8 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -34,48 +34,43 @@ #include <linux/tc_act/tc_gact.h> #include <net/tc_act/tc_gact.h> -/* use generic hash table */ -#define MY_TAB_SIZE 16 -#define MY_TAB_MASK 15 - -static u32 idx_gen; -static struct tcf_gact *tcf_gact_ht[MY_TAB_SIZE]; +#define GACT_TAB_MASK 15 +static struct tcf_common *tcf_gact_ht[GACT_TAB_MASK + 1]; +static u32 gact_idx_gen; static DEFINE_RWLOCK(gact_lock); -/* ovewrride the defaults */ -#define tcf_st tcf_gact -#define tc_st tc_gact -#define tcf_t_lock gact_lock -#define tcf_ht tcf_gact_ht - -#define CONFIG_NET_ACT_INIT 1 -#include <net/pkt_act.h> +static struct tcf_hashinfo gact_hash_info = { + .htab = tcf_gact_ht, + .hmask = GACT_TAB_MASK, + .lock = &gact_lock, +}; #ifdef CONFIG_GACT_PROB -static int gact_net_rand(struct tcf_gact *p) +static int gact_net_rand(struct tcf_gact *gact) { - if (net_random()%p->pval) - return p->action; - return p->paction; + if (net_random() % gact->tcfg_pval) + return gact->tcf_action; + return gact->tcfg_paction; } -static int gact_determ(struct tcf_gact *p) +static int gact_determ(struct tcf_gact *gact) { - if (p->bstats.packets%p->pval) - return p->action; - return p->paction; + if (gact->tcf_bstats.packets % gact->tcfg_pval) + return gact->tcf_action; + return gact->tcfg_paction; } -typedef int (*g_rand)(struct tcf_gact *p); +typedef int (*g_rand)(struct tcf_gact *gact); static g_rand gact_rand[MAX_RAND]= { NULL, gact_net_rand, gact_determ }; -#endif +#endif /* CONFIG_GACT_PROB */ static int tcf_gact_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, int ovr, int bind) { struct rtattr *tb[TCA_GACT_MAX]; struct tc_gact *parm; - struct tcf_gact *p; + struct tcf_gact *gact; + struct tcf_common *pc; int ret = 0; if (rta == NULL || rtattr_parse_nested(tb, TCA_GACT_MAX, rta) < 0) @@ -94,105 +89,106 @@ static int tcf_gact_init(struct rtattr *rta, struct rtattr *est, return -EOPNOTSUPP; #endif - p = tcf_hash_check(parm->index, a, ovr, bind); - if (p == NULL) { - p = tcf_hash_create(parm->index, est, a, sizeof(*p), ovr, bind); - if (p == NULL) + pc = tcf_hash_check(parm->index, a, bind, &gact_hash_info); + if (!pc) { + pc = tcf_hash_create(parm->index, est, a, sizeof(*gact), + bind, &gact_idx_gen, &gact_hash_info); + if (unlikely(!pc)) return -ENOMEM; ret = ACT_P_CREATED; } else { if (!ovr) { - tcf_hash_release(p, bind); + tcf_hash_release(pc, bind, &gact_hash_info); return -EEXIST; } } - spin_lock_bh(&p->lock); - p->action = parm->action; + gact = to_gact(pc); + + spin_lock_bh(&gact->tcf_lock); + gact->tcf_action = parm->action; #ifdef CONFIG_GACT_PROB if (tb[TCA_GACT_PROB-1] != NULL) { struct tc_gact_p *p_parm = RTA_DATA(tb[TCA_GACT_PROB-1]); - p->paction = p_parm->paction; - p->pval = p_parm->pval; - p->ptype = p_parm->ptype; + gact->tcfg_paction = p_parm->paction; + gact->tcfg_pval = p_parm->pval; + gact->tcfg_ptype = p_parm->ptype; } #endif - spin_unlock_bh(&p->lock); + spin_unlock_bh(&gact->tcf_lock); if (ret == ACT_P_CREATED) - tcf_hash_insert(p); + tcf_hash_insert(pc, &gact_hash_info); return ret; } -static int -tcf_gact_cleanup(struct tc_action *a, int bind) +static int tcf_gact_cleanup(struct tc_action *a, int bind) { - struct tcf_gact *p = PRIV(a, gact); + struct tcf_gact *gact = a->priv; - if (p != NULL) - return tcf_hash_release(p, bind); + if (gact) + return tcf_hash_release(&gact->common, bind, &gact_hash_info); return 0; } -static int -tcf_gact(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) +static int tcf_gact(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) { - struct tcf_gact *p = PRIV(a, gact); + struct tcf_gact *gact = a->priv; int action = TC_ACT_SHOT; - spin_lock(&p->lock); + spin_lock(&gact->tcf_lock); #ifdef CONFIG_GACT_PROB - if (p->ptype && gact_rand[p->ptype] != NULL) - action = gact_rand[p->ptype](p); + if (gact->tcfg_ptype && gact_rand[gact->tcfg_ptype] != NULL) + action = gact_rand[gact->tcfg_ptype](gact); else - action = p->action; + action = gact->tcf_action; #else - action = p->action; + action = gact->tcf_action; #endif - p->bstats.bytes += skb->len; - p->bstats.packets++; + gact->tcf_bstats.bytes += skb->len; + gact->tcf_bstats.packets++; if (action == TC_ACT_SHOT) - p->qstats.drops++; - p->tm.lastuse = jiffies; - spin_unlock(&p->lock); + gact->tcf_qstats.drops++; + gact->tcf_tm.lastuse = jiffies; + spin_unlock(&gact->tcf_lock); return action; } -static int -tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref) +static int tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref) { unsigned char *b = skb->tail; struct tc_gact opt; - struct tcf_gact *p = PRIV(a, gact); + struct tcf_gact *gact = a->priv; struct tcf_t t; - opt.index = p->index; - opt.refcnt = p->refcnt - ref; - opt.bindcnt = p->bindcnt - bind; - opt.action = p->action; + opt.index = gact->tcf_index; + opt.refcnt = gact->tcf_refcnt - ref; + opt.bindcnt = gact->tcf_bindcnt - bind; + opt.action = gact->tcf_action; RTA_PUT(skb, TCA_GACT_PARMS, sizeof(opt), &opt); #ifdef CONFIG_GACT_PROB - if (p->ptype) { + if (gact->tcfg_ptype) { struct tc_gact_p p_opt; - p_opt.paction = p->paction; - p_opt.pval = p->pval; - p_opt.ptype = p->ptype; + p_opt.paction = gact->tcfg_paction; + p_opt.pval = gact->tcfg_pval; + p_opt.ptype = gact->tcfg_ptype; RTA_PUT(skb, TCA_GACT_PROB, sizeof(p_opt), &p_opt); } #endif - t.install = jiffies_to_clock_t(jiffies - p->tm.install); - t.lastuse = jiffies_to_clock_t(jiffies - p->tm.lastuse); - t.expires = jiffies_to_clock_t(p->tm.expires); + t.install = jiffies_to_clock_t(jiffies - gact->tcf_tm.install); + t.lastuse = jiffies_to_clock_t(jiffies - gact->tcf_tm.lastuse); + t.expires = jiffies_to_clock_t(gact->tcf_tm.expires); RTA_PUT(skb, TCA_GACT_TM, sizeof(t), &t); return skb->len; - rtattr_failure: +rtattr_failure: skb_trim(skb, b - skb->data); return -1; } static struct tc_action_ops act_gact_ops = { .kind = "gact", + .hinfo = &gact_hash_info, .type = TCA_ACT_GACT, .capab = TCA_CAP_NONE, .owner = THIS_MODULE, @@ -208,8 +204,7 @@ MODULE_AUTHOR("Jamal Hadi Salim(2002-4)"); MODULE_DESCRIPTION("Generic Classifier actions"); MODULE_LICENSE("GPL"); -static int __init -gact_init_module(void) +static int __init gact_init_module(void) { #ifdef CONFIG_GACT_PROB printk("GACT probability on\n"); @@ -219,8 +214,7 @@ gact_init_module(void) return tcf_register_action(&act_gact_ops); } -static void __exit -gact_cleanup_module(void) +static void __exit gact_cleanup_module(void) { tcf_unregister_action(&act_gact_ops); } diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c index d799e01248c..224c078a398 100644 --- a/net/sched/act_ipt.c +++ b/net/sched/act_ipt.c @@ -38,25 +38,19 @@ #include <linux/netfilter_ipv4/ip_tables.h> -/* use generic hash table */ -#define MY_TAB_SIZE 16 -#define MY_TAB_MASK 15 -static u32 idx_gen; -static struct tcf_ipt *tcf_ipt_ht[MY_TAB_SIZE]; -/* ipt hash table lock */ +#define IPT_TAB_MASK 15 +static struct tcf_common *tcf_ipt_ht[IPT_TAB_MASK + 1]; +static u32 ipt_idx_gen; static DEFINE_RWLOCK(ipt_lock); -/* ovewrride the defaults */ -#define tcf_st tcf_ipt -#define tcf_t_lock ipt_lock -#define tcf_ht tcf_ipt_ht - -#define CONFIG_NET_ACT_INIT -#include <net/pkt_act.h> +static struct tcf_hashinfo ipt_hash_info = { + .htab = tcf_ipt_ht, + .hmask = IPT_TAB_MASK, + .lock = &ipt_lock, +}; -static int -ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int hook) +static int ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int hook) { struct ipt_target *target; int ret = 0; @@ -65,7 +59,6 @@ ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int hook) if (!target) return -ENOENT; - DPRINTK("ipt_init_target: found %s\n", target->name); t->u.kernel.target = target; ret = xt_check_target(target, AF_INET, t->u.target_size - sizeof(*t), @@ -78,8 +71,6 @@ ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int hook) t->u.kernel.target, t->data, t->u.target_size - sizeof(*t), hook)) { - DPRINTK("ipt_init_target: check failed for `%s'.\n", - t->u.kernel.target->name); module_put(t->u.kernel.target->me); ret = -EINVAL; } @@ -87,8 +78,7 @@ ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int hook) return ret; } -static void -ipt_destroy_target(struct ipt_entry_target *t) +static void ipt_destroy_target(struct ipt_entry_target *t) { if (t->u.kernel.target->destroy) t->u.kernel.target->destroy(t->u.kernel.target, t->data, @@ -96,31 +86,30 @@ ipt_destroy_target(struct ipt_entry_target *t) module_put(t->u.kernel.target->me); } -static int -tcf_ipt_release(struct tcf_ipt *p, int bind) +static int tcf_ipt_release(struct tcf_ipt *ipt, int bind) { int ret = 0; - if (p) { + if (ipt) { if (bind) - p->bindcnt--; - p->refcnt--; - if (p->bindcnt <= 0 && p->refcnt <= 0) { - ipt_destroy_target(p->t); - kfree(p->tname); - kfree(p->t); - tcf_hash_destroy(p); + ipt->tcf_bindcnt--; + ipt->tcf_refcnt--; + if (ipt->tcf_bindcnt <= 0 && ipt->tcf_refcnt <= 0) { + ipt_destroy_target(ipt->tcfi_t); + kfree(ipt->tcfi_tname); + kfree(ipt->tcfi_t); + tcf_hash_destroy(&ipt->common, &ipt_hash_info); ret = ACT_P_DELETED; } } return ret; } -static int -tcf_ipt_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, - int ovr, int bind) +static int tcf_ipt_init(struct rtattr *rta, struct rtattr *est, + struct tc_action *a, int ovr, int bind) { struct rtattr *tb[TCA_IPT_MAX]; - struct tcf_ipt *p; + struct tcf_ipt *ipt; + struct tcf_common *pc; struct ipt_entry_target *td, *t; char *tname; int ret = 0, err; @@ -144,49 +133,51 @@ tcf_ipt_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, RTA_PAYLOAD(tb[TCA_IPT_INDEX-1]) >= sizeof(u32)) index = *(u32 *)RTA_DATA(tb[TCA_IPT_INDEX-1]); - p = tcf_hash_check(index, a, ovr, bind); - if (p == NULL) { - p = tcf_hash_create(index, est, a, sizeof(*p), ovr, bind); - if (p == NULL) + pc = tcf_hash_check(index, a, bind, &ipt_hash_info); + if (!pc) { + pc = tcf_hash_create(index, est, a, sizeof(*ipt), bind, + &ipt_idx_gen, &ipt_hash_info); + if (unlikely(!pc)) return -ENOMEM; ret = ACT_P_CREATED; } else { if (!ovr) { - tcf_ipt_release(p, bind); + tcf_ipt_release(to_ipt(pc), bind); return -EEXIST; } } + ipt = to_ipt(pc); hook = *(u32 *)RTA_DATA(tb[TCA_IPT_HOOK-1]); err = -ENOMEM; tname = kmalloc(IFNAMSIZ, GFP_KERNEL); - if (tname == NULL) + if (unlikely(!tname)) goto err1; if (tb[TCA_IPT_TABLE - 1] == NULL || rtattr_strlcpy(tname, tb[TCA_IPT_TABLE-1], IFNAMSIZ) >= IFNAMSIZ) strcpy(tname, "mangle"); t = kmalloc(td->u.target_size, GFP_KERNEL); - if (t == NULL) + if (unlikely(!t)) goto err2; memcpy(t, td, td->u.target_size); if ((err = ipt_init_target(t, tname, hook)) < 0) goto err3; - spin_lock_bh(&p->lock); + spin_lock_bh(&ipt->tcf_lock); if (ret != ACT_P_CREATED) { - ipt_destroy_target(p->t); - kfree(p->tname); - kfree(p->t); + ipt_destroy_target(ipt->tcfi_t); + kfree(ipt->tcfi_tname); + kfree(ipt->tcfi_t); } - p->tname = tname; - p->t = t; - p->hook = hook; - spin_unlock_bh(&p->lock); + ipt->tcfi_tname = tname; + ipt->tcfi_t = t; + ipt->tcfi_hook = hook; + spin_unlock_bh(&ipt->tcf_lock); if (ret == ACT_P_CREATED) - tcf_hash_insert(p); + tcf_hash_insert(pc, &ipt_hash_info); return ret; err3: @@ -194,33 +185,32 @@ err3: err2: kfree(tname); err1: - kfree(p); + kfree(pc); return err; } -static int -tcf_ipt_cleanup(struct tc_action *a, int bind) +static int tcf_ipt_cleanup(struct tc_action *a, int bind) { - struct tcf_ipt *p = PRIV(a, ipt); - return tcf_ipt_release(p, bind); + struct tcf_ipt *ipt = a->priv; + return tcf_ipt_release(ipt, bind); } -static int -tcf_ipt(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) +static int tcf_ipt(struct sk_buff *skb, struct tc_action *a, + struct tcf_result *res) { int ret = 0, result = 0; - struct tcf_ipt *p = PRIV(a, ipt); + struct tcf_ipt *ipt = a->priv; if (skb_cloned(skb)) { if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) return TC_ACT_UNSPEC; } - spin_lock(&p->lock); + spin_lock(&ipt->tcf_lock); - p->tm.lastuse = jiffies; - p->bstats.bytes += skb->len; - p->bstats.packets++; + ipt->tcf_tm.lastuse = jiffies; + ipt->tcf_bstats.bytes += skb->len; + ipt->tcf_bstats.packets++; /* yes, we have to worry about both in and out dev worry later - danger - this API seems to have changed @@ -229,16 +219,17 @@ tcf_ipt(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) /* iptables targets take a double skb pointer in case the skb * needs to be replaced. We don't own the skb, so this must not * happen. The pskb_expand_head above should make sure of this */ - ret = p->t->u.kernel.target->target(&skb, skb->dev, NULL, p->hook, - p->t->u.kernel.target, p->t->data, - NULL); + ret = ipt->tcfi_t->u.kernel.target->target(&skb, skb->dev, NULL, + ipt->tcfi_hook, + ipt->tcfi_t->u.kernel.target, + ipt->tcfi_t->data, NULL); switch (ret) { case NF_ACCEPT: result = TC_ACT_OK; break; case NF_DROP: result = TC_ACT_SHOT; - p->qstats.drops++; + ipt->tcf_qstats.drops++; break; case IPT_CONTINUE: result = TC_ACT_PIPE; @@ -249,53 +240,46 @@ tcf_ipt(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) result = TC_POLICE_OK; break; } - spin_unlock(&p->lock); + spin_unlock(&ipt->tcf_lock); return result; } -static int -tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref) +static int tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref) { + unsigned char *b = skb->tail; + struct tcf_ipt *ipt = a->priv; struct ipt_entry_target *t; struct tcf_t tm; struct tc_cnt c; - unsigned char *b = skb->tail; - struct tcf_ipt *p = PRIV(a, ipt); /* for simple targets kernel size == user size ** user name = target name ** for foolproof you need to not assume this */ - t = kmalloc(p->t->u.user.target_size, GFP_ATOMIC); - if (t == NULL) + t = kmalloc(ipt->tcfi_t->u.user.target_size, GFP_ATOMIC); + if (unlikely(!t)) goto rtattr_failure; - c.bindcnt = p->bindcnt - bind; - c.refcnt = p->refcnt - ref; - memcpy(t, p->t, p->t->u.user.target_size); - strcpy(t->u.user.name, p->t->u.kernel.target->name); - - DPRINTK("\ttcf_ipt_dump tablename %s length %d\n", p->tname, - strlen(p->tname)); - DPRINTK("\tdump target name %s size %d size user %d " - "data[0] %x data[1] %x\n", p->t->u.kernel.target->name, - p->t->u.target_size, p->t->u.user.target_size, - p->t->data[0], p->t->data[1]); - RTA_PUT(skb, TCA_IPT_TARG, p->t->u.user.target_size, t); - RTA_PUT(skb, TCA_IPT_INDEX, 4, &p->index); - RTA_PUT(skb, TCA_IPT_HOOK, 4, &p->hook); + c.bindcnt = ipt->tcf_bindcnt - bind; + c.refcnt = ipt->tcf_refcnt - ref; + memcpy(t, ipt->tcfi_t, ipt->tcfi_t->u.user.target_size); + strcpy(t->u.user.name, ipt->tcfi_t->u.kernel.target->name); + + RTA_PUT(skb, TCA_IPT_TARG, ipt->tcfi_t->u.user.target_size, t); + RTA_PUT(skb, TCA_IPT_INDEX, 4, &ipt->tcf_index); + RTA_PUT(skb, TCA_IPT_HOOK, 4, &ipt->tcfi_hook); RTA_PUT(skb, TCA_IPT_CNT, sizeof(struct tc_cnt), &c); - RTA_PUT(skb, TCA_IPT_TABLE, IFNAMSIZ, p->tname); - tm.install = jiffies_to_clock_t(jiffies - p->tm.install); - tm.lastuse = jiffies_to_clock_t(jiffies - p->tm.lastuse); - tm.expires = jiffies_to_clock_t(p->tm.expires); + RTA_PUT(skb, TCA_IPT_TABLE, IFNAMSIZ, ipt->tcfi_tname); + tm.install = jiffies_to_clock_t(jiffies - ipt->tcf_tm.install); + tm.lastuse = jiffies_to_clock_t(jiffies - ipt->tcf_tm.lastuse); + tm.expires = jiffies_to_clock_t(ipt->tcf_tm.expires); RTA_PUT(skb, TCA_IPT_TM, sizeof (tm), &tm); kfree(t); return skb->len; - rtattr_failure: +rtattr_failure: skb_trim(skb, b - skb->data); kfree(t); return -1; @@ -303,6 +287,7 @@ tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref) static struct tc_action_ops act_ipt_ops = { .kind = "ipt", + .hinfo = &ipt_hash_info, .type = TCA_ACT_IPT, .capab = TCA_CAP_NONE, .owner = THIS_MODULE, @@ -318,14 +303,12 @@ MODULE_AUTHOR("Jamal Hadi Salim(2002-4)"); MODULE_DESCRIPTION("Iptables target actions"); MODULE_LICENSE("GPL"); -static int __init -ipt_init_module(void) +static int __init ipt_init_module(void) { return tcf_register_action(&act_ipt_ops); } -static void __exit -ipt_cleanup_module(void) +static void __exit ipt_cleanup_module(void) { tcf_unregister_action(&act_ipt_ops); } diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index fc562047ecc..483897271f1 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -39,46 +39,39 @@ #include <linux/etherdevice.h> #include <linux/if_arp.h> - -/* use generic hash table */ -#define MY_TAB_SIZE 8 -#define MY_TAB_MASK (MY_TAB_SIZE - 1) -static u32 idx_gen; -static struct tcf_mirred *tcf_mirred_ht[MY_TAB_SIZE]; +#define MIRRED_TAB_MASK 7 +static struct tcf_common *tcf_mirred_ht[MIRRED_TAB_MASK + 1]; +static u32 mirred_idx_gen; static DEFINE_RWLOCK(mirred_lock); -/* ovewrride the defaults */ -#define tcf_st tcf_mirred -#define tc_st tc_mirred -#define tcf_t_lock mirred_lock -#define tcf_ht tcf_mirred_ht - -#define CONFIG_NET_ACT_INIT 1 -#include <net/pkt_act.h> +static struct tcf_hashinfo mirred_hash_info = { + .htab = tcf_mirred_ht, + .hmask = MIRRED_TAB_MASK, + .lock = &mirred_lock, +}; -static inline int -tcf_mirred_release(struct tcf_mirred *p, int bind) +static inline int tcf_mirred_release(struct tcf_mirred *m, int bind) { - if (p) { + if (m) { if (bind) - p->bindcnt--; - p->refcnt--; - if(!p->bindcnt && p->refcnt <= 0) { - dev_put(p->dev); - tcf_hash_destroy(p); + m->tcf_bindcnt--; + m->tcf_refcnt--; + if(!m->tcf_bindcnt && m->tcf_refcnt <= 0) { + dev_put(m->tcfm_dev); + tcf_hash_destroy(&m->common, &mirred_hash_info); return 1; } } return 0; } -static int -tcf_mirred_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, - int ovr, int bind) +static int tcf_mirred_init(struct rtattr *rta, struct rtattr *est, + struct tc_action *a, int ovr, int bind) { struct rtattr *tb[TCA_MIRRED_MAX]; struct tc_mirred *parm; - struct tcf_mirred *p; + struct tcf_mirred *m; + struct tcf_common *pc; struct net_device *dev = NULL; int ret = 0; int ok_push = 0; @@ -110,64 +103,62 @@ tcf_mirred_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, } } - p = tcf_hash_check(parm->index, a, ovr, bind); - if (p == NULL) { + pc = tcf_hash_check(parm->index, a, bind, &mirred_hash_info); + if (!pc) { if (!parm->ifindex) return -EINVAL; - p = tcf_hash_create(parm->index, est, a, sizeof(*p), ovr, bind); - if (p == NULL) + pc = tcf_hash_create(parm->index, est, a, sizeof(*m), bind, + &mirred_idx_gen, &mirred_hash_info); + if (unlikely(!pc)) return -ENOMEM; ret = ACT_P_CREATED; } else { if (!ovr) { - tcf_mirred_release(p, bind); + tcf_mirred_release(to_mirred(pc), bind); return -EEXIST; } } + m = to_mirred(pc); - spin_lock_bh(&p->lock); - p->action = parm->action; - p->eaction = parm->eaction; + spin_lock_bh(&m->tcf_lock); + m->tcf_action = parm->action; + m->tcfm_eaction = parm->eaction; if (parm->ifindex) { - p->ifindex = parm->ifindex; + m->tcfm_ifindex = parm->ifindex; if (ret != ACT_P_CREATED) - dev_put(p->dev); - p->dev = dev; + dev_put(m->tcfm_dev); + m->tcfm_dev = dev; dev_hold(dev); - p->ok_push = ok_push; + m->tcfm_ok_push = ok_push; } - spin_unlock_bh(&p->lock); + spin_unlock_bh(&m->tcf_lock); if (ret == ACT_P_CREATED) - tcf_hash_insert(p); + tcf_hash_insert(pc, &mirred_hash_info); - DPRINTK("tcf_mirred_init index %d action %d eaction %d device %s " - "ifindex %d\n", parm->index, parm->action, parm->eaction, - dev->name, parm->ifindex); return ret; } -static int -tcf_mirred_cleanup(struct tc_action *a, int bind) +static int tcf_mirred_cleanup(struct tc_action *a, int bind) { - struct tcf_mirred *p = PRIV(a, mirred); + struct tcf_mirred *m = a->priv; - if (p != NULL) - return tcf_mirred_release(p, bind); + if (m) + return tcf_mirred_release(m, bind); return 0; } -static int -tcf_mirred(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) +static int tcf_mirred(struct sk_buff *skb, struct tc_action *a, + struct tcf_result *res) { - struct tcf_mirred *p = PRIV(a, mirred); + struct tcf_mirred *m = a->priv; struct net_device *dev; struct sk_buff *skb2 = NULL; u32 at = G_TC_AT(skb->tc_verd); - spin_lock(&p->lock); + spin_lock(&m->tcf_lock); - dev = p->dev; - p->tm.lastuse = jiffies; + dev = m->tcfm_dev; + m->tcf_tm.lastuse = jiffies; if (!(dev->flags&IFF_UP) ) { if (net_ratelimit()) @@ -176,10 +167,10 @@ tcf_mirred(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) bad_mirred: if (skb2 != NULL) kfree_skb(skb2); - p->qstats.overlimits++; - p->bstats.bytes += skb->len; - p->bstats.packets++; - spin_unlock(&p->lock); + m->tcf_qstats.overlimits++; + m->tcf_bstats.bytes += skb->len; + m->tcf_bstats.packets++; + spin_unlock(&m->tcf_lock); /* should we be asking for packet to be dropped? * may make sense for redirect case only */ @@ -189,59 +180,59 @@ bad_mirred: skb2 = skb_clone(skb, GFP_ATOMIC); if (skb2 == NULL) goto bad_mirred; - if (p->eaction != TCA_EGRESS_MIRROR && p->eaction != TCA_EGRESS_REDIR) { + if (m->tcfm_eaction != TCA_EGRESS_MIRROR && + m->tcfm_eaction != TCA_EGRESS_REDIR) { if (net_ratelimit()) - printk("tcf_mirred unknown action %d\n", p->eaction); + printk("tcf_mirred unknown action %d\n", < |