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author | Jeff Garzik <jeff@garzik.org> | 2006-09-24 01:52:47 -0400 |
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committer | Jeff Garzik <jeff@garzik.org> | 2006-09-24 01:52:47 -0400 |
commit | 23930fa1cebfea6f79881c588ccd1b0781e49e3f (patch) | |
tree | 36d29e3f83661c4f5f45b6f74ac0d5f9886867a8 /net/sched/act_pedit.c | |
parent | 36b35a5be0e4b406acd816e2122d153e875105be (diff) | |
parent | 4f5537de7c1531398e84e18a24f667e49cc94208 (diff) | |
download | kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.zip kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.tar.gz kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.tar.bz2 |
Merge branch 'master' into upstream
Diffstat (limited to 'net/sched/act_pedit.c')
-rw-r--r-- | net/sched/act_pedit.c | 166 |
1 files changed, 72 insertions, 94 deletions
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c index f257475..8ac65c2 100644 --- a/net/sched/act_pedit.c +++ b/net/sched/act_pedit.c @@ -33,32 +33,25 @@ #include <linux/tc_act/tc_pedit.h> #include <net/tc_act/tc_pedit.h> - -#define PEDIT_DEB 1 - -/* use generic hash table */ -#define MY_TAB_SIZE 16 -#define MY_TAB_MASK 15 -static u32 idx_gen; -static struct tcf_pedit *tcf_pedit_ht[MY_TAB_SIZE]; +#define PEDIT_TAB_MASK 15 +static struct tcf_common *tcf_pedit_ht[PEDIT_TAB_MASK + 1]; +static u32 pedit_idx_gen; static DEFINE_RWLOCK(pedit_lock); -#define tcf_st tcf_pedit -#define tc_st tc_pedit -#define tcf_t_lock pedit_lock -#define tcf_ht tcf_pedit_ht - -#define CONFIG_NET_ACT_INIT 1 -#include <net/pkt_act.h> +static struct tcf_hashinfo pedit_hash_info = { + .htab = tcf_pedit_ht, + .hmask = PEDIT_TAB_MASK, + .lock = &pedit_lock, +}; -static int -tcf_pedit_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, - int ovr, int bind) +static int tcf_pedit_init(struct rtattr *rta, struct rtattr *est, + struct tc_action *a, int ovr, int bind) { struct rtattr *tb[TCA_PEDIT_MAX]; struct tc_pedit *parm; int ret = 0; struct tcf_pedit *p; + struct tcf_common *pc; struct tc_pedit_key *keys = NULL; int ksize; @@ -73,54 +66,56 @@ tcf_pedit_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a, if (RTA_PAYLOAD(tb[TCA_PEDIT_PARMS-1]) < sizeof(*parm) + ksize) return -EINVAL; - p = tcf_hash_check(parm->index, a, ovr, bind); - if (p == NULL) { + pc = tcf_hash_check(parm->index, a, bind, &pedit_hash_info); + if (!pc) { if (!parm->nkeys) 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(*p), bind, + &pedit_idx_gen, &pedit_hash_info); + if (unlikely(!pc)) return -ENOMEM; + p = to_pedit(pc); keys = kmalloc(ksize, GFP_KERNEL); if (keys == NULL) { - kfree(p); + kfree(pc); return -ENOMEM; } ret = ACT_P_CREATED; } else { + p = to_pedit(pc); if (!ovr) { - tcf_hash_release(p, bind); + tcf_hash_release(pc, bind, &pedit_hash_info); return -EEXIST; } - if (p->nkeys && p->nkeys != parm->nkeys) { + if (p->tcfp_nkeys && p->tcfp_nkeys != parm->nkeys) { keys = kmalloc(ksize, GFP_KERNEL); if (keys == NULL) return -ENOMEM; } } - spin_lock_bh(&p->lock); - p->flags = parm->flags; - p->action = parm->action; + spin_lock_bh(&p->tcf_lock); + p->tcfp_flags = parm->flags; + p->tcf_action = parm->action; if (keys) { - kfree(p->keys); - p->keys = keys; - p->nkeys = parm->nkeys; + kfree(p->tcfp_keys); + p->tcfp_keys = keys; + p->tcfp_nkeys = parm->nkeys; } - memcpy(p->keys, parm->keys, ksize); - spin_unlock_bh(&p->lock); + memcpy(p->tcfp_keys, parm->keys, ksize); + spin_unlock_bh(&p->tcf_lock); if (ret == ACT_P_CREATED) - tcf_hash_insert(p); + tcf_hash_insert(pc, &pedit_hash_info); return ret; } -static int -tcf_pedit_cleanup(struct tc_action *a, int bind) +static int tcf_pedit_cleanup(struct tc_action *a, int bind) { - struct tcf_pedit *p = PRIV(a, pedit); + struct tcf_pedit *p = a->priv; - if (p != NULL) { - struct tc_pedit_key *keys = p->keys; - if (tcf_hash_release(p, bind)) { + if (p) { + struct tc_pedit_key *keys = p->tcfp_keys; + if (tcf_hash_release(&p->common, bind, &pedit_hash_info)) { kfree(keys); return 1; } @@ -128,30 +123,30 @@ tcf_pedit_cleanup(struct tc_action *a, int bind) return 0; } -static int -tcf_pedit(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) +static int tcf_pedit(struct sk_buff *skb, struct tc_action *a, + struct tcf_result *res) { - struct tcf_pedit *p = PRIV(a, pedit); + struct tcf_pedit *p = a->priv; int i, munged = 0; u8 *pptr; if (!(skb->tc_verd & TC_OK2MUNGE)) { /* should we set skb->cloned? */ if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) { - return p->action; + return p->tcf_action; } } pptr = skb->nh.raw; - spin_lock(&p->lock); + spin_lock(&p->tcf_lock); - p->tm.lastuse = jiffies; + p->tcf_tm.lastuse = jiffies; - if (p->nkeys > 0) { - struct tc_pedit_key *tkey = p->keys; + if (p->tcfp_nkeys > 0) { + struct tc_pedit_key *tkey = p->tcfp_keys; - for (i = p->nkeys; i > 0; i--, tkey++) { + for (i = p->tcfp_nkeys; i > 0; i--, tkey++) { u32 *ptr; int offset = tkey->off; @@ -169,7 +164,8 @@ tcf_pedit(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) printk("offset must be on 32 bit boundaries\n"); goto bad; } - if (skb->len < 0 || (offset > 0 && offset > skb->len)) { + if (skb->len < 0 || + (offset > 0 && offset > skb->len)) { printk("offset %d cant exceed pkt length %d\n", offset, skb->len); goto bad; @@ -185,63 +181,47 @@ tcf_pedit(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res) skb->tc_verd = SET_TC_MUNGED(skb->tc_verd); goto done; } else { - printk("pedit BUG: index %d\n",p->index); + printk("pedit BUG: index %d\n", p->tcf_index); } bad: - p->qstats.overlimits++; + p->tcf_qstats.overlimits++; done: - p->bstats.bytes += skb->len; - p->bstats.packets++; - spin_unlock(&p->lock); - return p->action; + p->tcf_bstats.bytes += skb->len; + p->tcf_bstats.packets++; + spin_unlock(&p->tcf_lock); + return p->tcf_action; } -static int -tcf_pedit_dump(struct sk_buff *skb, struct tc_action *a,int bind, int ref) +static int tcf_pedit_dump(struct sk_buff *skb, struct tc_action *a, + int bind, int ref) { unsigned char *b = skb->tail; + struct tcf_pedit *p = a->priv; struct tc_pedit *opt; - struct tcf_pedit *p = PRIV(a, pedit); struct tcf_t t; int s; - s = sizeof(*opt) + p->nkeys * sizeof(struct tc_pedit_key); + s = sizeof(*opt) + p->tcfp_nkeys * sizeof(struct tc_pedit_key); /* netlink spinlocks held above us - must use ATOMIC */ opt = kzalloc(s, GFP_ATOMIC); - if (opt == NULL) + if (unlikely(!opt)) return -ENOBUFS; - memcpy(opt->keys, p->keys, p->nkeys * sizeof(struct tc_pedit_key)); - opt->index = p->index; - opt->nkeys = p->nkeys; - opt->flags = p->flags; - opt->action = p->action; - opt->refcnt = p->refcnt - ref; - opt->bindcnt = p->bindcnt - bind; - - -#ifdef PEDIT_DEB - { - /* Debug - get rid of later */ - int i; - struct tc_pedit_key *key = opt->keys; - - for (i=0; i<opt->nkeys; i++, key++) { - printk( "\n key #%d",i); - printk( " at %d: val %08x mask %08x", - (unsigned int)key->off, - (unsigned int)key->val, - (unsigned int)key->mask); - } - } -#endif + memcpy(opt->keys, p->tcfp_keys, + p->tcfp_nkeys * sizeof(struct tc_pedit_key)); + opt->index = p->tcf_index; + opt->nkeys = p->tcfp_nkeys; + opt->flags = p->tcfp_flags; + opt->action = p->tcf_action; + opt->refcnt = p->tcf_refcnt - ref; + opt->bindcnt = p->tcf_bindcnt - bind; RTA_PUT(skb, TCA_PEDIT_PARMS, s, opt); - 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 - p->tcf_tm.install); + t.lastuse = jiffies_to_clock_t(jiffies - p->tcf_tm.lastuse); + t.expires = jiffies_to_clock_t(p->tcf_tm.expires); RTA_PUT(skb, TCA_PEDIT_TM, sizeof(t), &t); kfree(opt); return skb->len; @@ -252,9 +232,9 @@ rtattr_failure: return -1; } -static -struct tc_action_ops act_pedit_ops = { +static struct tc_action_ops act_pedit_ops = { .kind = "pedit", + .hinfo = &pedit_hash_info, .type = TCA_ACT_PEDIT, .capab = TCA_CAP_NONE, .owner = THIS_MODULE, @@ -270,14 +250,12 @@ MODULE_AUTHOR("Jamal Hadi Salim(2002-4)"); MODULE_DESCRIPTION("Generic Packet Editor actions"); MODULE_LICENSE("GPL"); -static int __init -pedit_init_module(void) +static int __init pedit_init_module(void) { return tcf_register_action(&act_pedit_ops); } -static void __exit -pedit_cleanup_module(void) +static void __exit pedit_cleanup_module(void) { tcf_unregister_action(&act_pedit_ops); } |