diff options
Diffstat (limited to 'net/sched/cls_tcindex.c')
-rw-r--r-- | net/sched/cls_tcindex.c | 141 |
1 files changed, 63 insertions, 78 deletions
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c index 2314820..ee60b2d 100644 --- a/net/sched/cls_tcindex.c +++ b/net/sched/cls_tcindex.c @@ -29,19 +29,6 @@ #define DEFAULT_HASH_SIZE 64 /* optimized for diffserv */ -#if 1 /* control */ -#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args) -#else -#define DPRINTK(format,args...) -#endif - -#if 0 /* data */ -#define D2PRINTK(format,args...) printk(KERN_DEBUG format,##args) -#else -#define D2PRINTK(format,args...) -#endif - - #define PRIV(tp) ((struct tcindex_data *) (tp)->root) @@ -104,7 +91,8 @@ static int tcindex_classify(struct sk_buff *skb, struct tcf_proto *tp, struct tcindex_filter_result *f; int key = (skb->tc_index & p->mask) >> p->shift; - D2PRINTK("tcindex_classify(skb %p,tp %p,res %p),p %p\n",skb,tp,res,p); + pr_debug("tcindex_classify(skb %p,tp %p,res %p),p %p\n", + skb, tp, res, p); f = tcindex_lookup(p, key); if (!f) { @@ -112,11 +100,11 @@ static int tcindex_classify(struct sk_buff *skb, struct tcf_proto *tp, return -1; res->classid = TC_H_MAKE(TC_H_MAJ(tp->q->handle), key); res->class = 0; - D2PRINTK("alg 0x%x\n",res->classid); + pr_debug("alg 0x%x\n", res->classid); return 0; } *res = f->res; - D2PRINTK("map 0x%x\n",res->classid); + pr_debug("map 0x%x\n", res->classid); return tcf_exts_exec(skb, &f->exts, res); } @@ -127,7 +115,7 @@ static unsigned long tcindex_get(struct tcf_proto *tp, u32 handle) struct tcindex_data *p = PRIV(tp); struct tcindex_filter_result *r; - DPRINTK("tcindex_get(tp %p,handle 0x%08x)\n",tp,handle); + pr_debug("tcindex_get(tp %p,handle 0x%08x)\n", tp, handle); if (p->perfect && handle >= p->alloc_hash) return 0; r = tcindex_lookup(p, handle); @@ -137,7 +125,7 @@ static unsigned long tcindex_get(struct tcf_proto *tp, u32 handle) static void tcindex_put(struct tcf_proto *tp, unsigned long f) { - DPRINTK("tcindex_put(tp %p,f 0x%lx)\n",tp,f); + pr_debug("tcindex_put(tp %p,f 0x%lx)\n", tp, f); } @@ -145,8 +133,8 @@ static int tcindex_init(struct tcf_proto *tp) { struct tcindex_data *p; - DPRINTK("tcindex_init(tp %p)\n",tp); - p = kzalloc(sizeof(struct tcindex_data),GFP_KERNEL); + pr_debug("tcindex_init(tp %p)\n", tp); + p = kzalloc(sizeof(struct tcindex_data), GFP_KERNEL); if (!p) return -ENOMEM; @@ -166,7 +154,7 @@ __tcindex_delete(struct tcf_proto *tp, unsigned long arg, int lock) struct tcindex_filter_result *r = (struct tcindex_filter_result *) arg; struct tcindex_filter *f = NULL; - DPRINTK("tcindex_delete(tp %p,arg 0x%lx),p %p,f %p\n",tp,arg,p,f); + pr_debug("tcindex_delete(tp %p,arg 0x%lx),p %p,f %p\n", tp, arg, p, f); if (p->perfect) { if (!r->res.class) return -ENOENT; @@ -205,10 +193,18 @@ valid_perfect_hash(struct tcindex_data *p) return p->hash > (p->mask >> p->shift); } +static const struct nla_policy tcindex_policy[TCA_TCINDEX_MAX + 1] = { + [TCA_TCINDEX_HASH] = { .type = NLA_U32 }, + [TCA_TCINDEX_MASK] = { .type = NLA_U16 }, + [TCA_TCINDEX_SHIFT] = { .type = NLA_U32 }, + [TCA_TCINDEX_FALL_THROUGH] = { .type = NLA_U32 }, + [TCA_TCINDEX_CLASSID] = { .type = NLA_U32 }, +}; + static int tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle, struct tcindex_data *p, struct tcindex_filter_result *r, - struct rtattr **tb, struct rtattr *est) + struct nlattr **tb, struct nlattr *est) { int err, balloc = 0; struct tcindex_filter_result new_filter_result, *old_r = r; @@ -229,24 +225,14 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle, else memset(&cr, 0, sizeof(cr)); - err = -EINVAL; - if (tb[TCA_TCINDEX_HASH-1]) { - if (RTA_PAYLOAD(tb[TCA_TCINDEX_HASH-1]) < sizeof(u32)) - goto errout; - cp.hash = *(u32 *) RTA_DATA(tb[TCA_TCINDEX_HASH-1]); - } + if (tb[TCA_TCINDEX_HASH]) + cp.hash = nla_get_u32(tb[TCA_TCINDEX_HASH]); - if (tb[TCA_TCINDEX_MASK-1]) { - if (RTA_PAYLOAD(tb[TCA_TCINDEX_MASK-1]) < sizeof(u16)) - goto errout; - cp.mask = *(u16 *) RTA_DATA(tb[TCA_TCINDEX_MASK-1]); - } + if (tb[TCA_TCINDEX_MASK]) + cp.mask = nla_get_u16(tb[TCA_TCINDEX_MASK]); - if (tb[TCA_TCINDEX_SHIFT-1]) { - if (RTA_PAYLOAD(tb[TCA_TCINDEX_SHIFT-1]) < sizeof(int)) - goto errout; - cp.shift = *(int *) RTA_DATA(tb[TCA_TCINDEX_SHIFT-1]); - } + if (tb[TCA_TCINDEX_SHIFT]) + cp.shift = nla_get_u32(tb[TCA_TCINDEX_SHIFT]); err = -EBUSY; /* Hash already allocated, make sure that we still meet the @@ -260,12 +246,8 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle, goto errout; err = -EINVAL; - if (tb[TCA_TCINDEX_FALL_THROUGH-1]) { - if (RTA_PAYLOAD(tb[TCA_TCINDEX_FALL_THROUGH-1]) < sizeof(u32)) - goto errout; - cp.fall_through = - *(u32 *) RTA_DATA(tb[TCA_TCINDEX_FALL_THROUGH-1]); - } + if (tb[TCA_TCINDEX_FALL_THROUGH]) + cp.fall_through = nla_get_u32(tb[TCA_TCINDEX_FALL_THROUGH]); if (!cp.hash) { /* Hash not specified, use perfect hash if the upper limit @@ -316,8 +298,8 @@ tcindex_set_parms(struct tcf_proto *tp, unsigned long base, u32 handle, goto errout_alloc; } - if (tb[TCA_TCINDEX_CLASSID-1]) { - cr.res.classid = *(u32 *) RTA_DATA(tb[TCA_TCINDEX_CLASSID-1]); + if (tb[TCA_TCINDEX_CLASSID]) { + cr.res.classid = nla_get_u32(tb[TCA_TCINDEX_CLASSID]); tcf_bind_filter(tp, &cr.res, base); } @@ -356,34 +338,36 @@ errout: static int tcindex_change(struct tcf_proto *tp, unsigned long base, u32 handle, - struct rtattr **tca, unsigned long *arg) + struct nlattr **tca, unsigned long *arg) { - struct rtattr *opt = tca[TCA_OPTIONS-1]; - struct rtattr *tb[TCA_TCINDEX_MAX]; + struct nlattr *opt = tca[TCA_OPTIONS]; + struct nlattr *tb[TCA_TCINDEX_MAX + 1]; struct tcindex_data *p = PRIV(tp); struct tcindex_filter_result *r = (struct tcindex_filter_result *) *arg; + int err; - DPRINTK("tcindex_change(tp %p,handle 0x%08x,tca %p,arg %p),opt %p," + pr_debug("tcindex_change(tp %p,handle 0x%08x,tca %p,arg %p),opt %p," "p %p,r %p,*arg 0x%lx\n", tp, handle, tca, arg, opt, p, r, arg ? *arg : 0L); if (!opt) return 0; - if (rtattr_parse_nested(tb, TCA_TCINDEX_MAX, opt) < 0) - return -EINVAL; + err = nla_parse_nested(tb, TCA_TCINDEX_MAX, opt, tcindex_policy); + if (err < 0) + return err; - return tcindex_set_parms(tp, base, handle, p, r, tb, tca[TCA_RATE-1]); + return tcindex_set_parms(tp, base, handle, p, r, tb, tca[TCA_RATE]); } static void tcindex_walk(struct tcf_proto *tp, struct tcf_walker *walker) { struct tcindex_data *p = PRIV(tp); - struct tcindex_filter *f,*next; + struct tcindex_filter *f, *next; int i; - DPRINTK("tcindex_walk(tp %p,walker %p),p %p\n",tp,walker,p); + pr_debug("tcindex_walk(tp %p,walker %p),p %p\n", tp, walker, p); if (p->perfect) { for (i = 0; i < p->hash; i++) { if (!p->perfect[i].res.class) @@ -405,7 +389,7 @@ static void tcindex_walk(struct tcf_proto *tp, struct tcf_walker *walker) for (f = p->h[i]; f; f = next) { next = f->next; if (walker->count >= walker->skip) { - if (walker->fn(tp,(unsigned long) &f->result, + if (walker->fn(tp, (unsigned long) &f->result, walker) < 0) { walker->stop = 1; return; @@ -429,11 +413,11 @@ static void tcindex_destroy(struct tcf_proto *tp) struct tcindex_data *p = PRIV(tp); struct tcf_walker walker; - DPRINTK("tcindex_destroy(tp %p),p %p\n",tp,p); + pr_debug("tcindex_destroy(tp %p),p %p\n", tp, p); walker.count = 0; walker.skip = 0; walker.fn = &tcindex_destroy_element; - tcindex_walk(tp,&walker); + tcindex_walk(tp, &walker); kfree(p->perfect); kfree(p->h); kfree(p); @@ -447,21 +431,23 @@ static int tcindex_dump(struct tcf_proto *tp, unsigned long fh, struct tcindex_data *p = PRIV(tp); struct tcindex_filter_result *r = (struct tcindex_filter_result *) fh; unsigned char *b = skb_tail_pointer(skb); - struct rtattr *rta; + struct nlattr *nest; + + pr_debug("tcindex_dump(tp %p,fh 0x%lx,skb %p,t %p),p %p,r %p,b %p\n", + tp, fh, skb, t, p, r, b); + pr_debug("p->perfect %p p->h %p\n", p->perfect, p->h); + + nest = nla_nest_start(skb, TCA_OPTIONS); + if (nest == NULL) + goto nla_put_failure; - DPRINTK("tcindex_dump(tp %p,fh 0x%lx,skb %p,t %p),p %p,r %p,b %p\n", - tp,fh,skb,t,p,r,b); - DPRINTK("p->perfect %p p->h %p\n",p->perfect,p->h); - rta = (struct rtattr *) b; - RTA_PUT(skb,TCA_OPTIONS,0,NULL); if (!fh) { t->tcm_handle = ~0; /* whatever ... */ - RTA_PUT(skb,TCA_TCINDEX_HASH,sizeof(p->hash),&p->hash); - RTA_PUT(skb,TCA_TCINDEX_MASK,sizeof(p->mask),&p->mask); - RTA_PUT(skb,TCA_TCINDEX_SHIFT,sizeof(p->shift),&p->shift); - RTA_PUT(skb,TCA_TCINDEX_FALL_THROUGH,sizeof(p->fall_through), - &p->fall_through); - rta->rta_len = skb_tail_pointer(skb) - b; + NLA_PUT_U32(skb, TCA_TCINDEX_HASH, p->hash); + NLA_PUT_U16(skb, TCA_TCINDEX_MASK, p->mask); + NLA_PUT_U32(skb, TCA_TCINDEX_SHIFT, p->shift); + NLA_PUT_U32(skb, TCA_TCINDEX_FALL_THROUGH, p->fall_through); + nla_nest_end(skb, nest); } else { if (p->perfect) { t->tcm_handle = r-p->perfect; @@ -478,27 +464,26 @@ static int tcindex_dump(struct tcf_proto *tp, unsigned long fh, } } } - DPRINTK("handle = %d\n",t->tcm_handle); + pr_debug("handle = %d\n", t->tcm_handle); if (r->res.class) - RTA_PUT(skb, TCA_TCINDEX_CLASSID, 4, &r->res.classid); + NLA_PUT_U32(skb, TCA_TCINDEX_CLASSID, r->res.classid); if (tcf_exts_dump(skb, &r->exts, &tcindex_ext_map) < 0) - goto rtattr_failure; - rta->rta_len = skb_tail_pointer(skb) - b; + goto nla_put_failure; + nla_nest_end(skb, nest); if (tcf_exts_dump_stats(skb, &r->exts, &tcindex_ext_map) < 0) - goto rtattr_failure; + goto nla_put_failure; } return skb->len; -rtattr_failure: +nla_put_failure: nlmsg_trim(skb, b); return -1; } -static struct tcf_proto_ops cls_tcindex_ops = { - .next = NULL, +static struct tcf_proto_ops cls_tcindex_ops __read_mostly = { .kind = "tcindex", .classify = tcindex_classify, .init = tcindex_init, |