sched: align nlattr properly when needed

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

16 files changed, 48 insertions, 33 deletions

diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c
index e640462ea8bf..f96ee8b9478d 100644
--- a/net/core/gen_stats.c
+++ b/net/core/gen_stats.c
@@ -25,9 +25,9 @@
 
 
 static inline int
-gnet_stats_copy(struct gnet_dump *d, int type, void *buf, int size)
+gnet_stats_copy(struct gnet_dump *d, int type, void *buf, int size, int padattr)
 {
-	if (nla_put(d->skb, type, size, buf))
+	if (nla_put_64bit(d->skb, type, size, buf, padattr))
 		goto nla_put_failure;
 	return 0;
 
@@ -59,7 +59,8 @@ nla_put_failure:
  */
 int
 gnet_stats_start_copy_compat(struct sk_buff *skb, int type, int tc_stats_type,
-	int xstats_type, spinlock_t *lock, struct gnet_dump *d)
+			     int xstats_type, spinlock_t *lock,
+			     struct gnet_dump *d, int padattr)
 	__acquires(lock)
 {
 	memset(d, 0, sizeof(*d));
@@ -71,16 +72,17 @@ gnet_stats_start_copy_compat(struct sk_buff *skb, int type, int tc_stats_type,
 	d->skb = skb;
 	d->compat_tc_stats = tc_stats_type;
 	d->compat_xstats = xstats_type;
+	d->padattr = padattr;
 
 	if (d->tail)
-		return gnet_stats_copy(d, type, NULL, 0);
+		return gnet_stats_copy(d, type, NULL, 0, padattr);
 
 	return 0;
 }
 EXPORT_SYMBOL(gnet_stats_start_copy_compat);
 
 /**
- * gnet_stats_start_copy_compat - start dumping procedure in compatibility mode
+ * gnet_stats_start_copy - start dumping procedure in compatibility mode
  * @skb: socket buffer to put statistics TLVs into
  * @type: TLV type for top level statistic TLV
  * @lock: statistics lock
@@ -94,9 +96,9 @@ EXPORT_SYMBOL(gnet_stats_start_copy_compat);
  */
 int
 gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
-	struct gnet_dump *d)
+		      struct gnet_dump *d, int padattr)
 {
-	return gnet_stats_start_copy_compat(skb, type, 0, 0, lock, d);
+	return gnet_stats_start_copy_compat(skb, type, 0, 0, lock, d, padattr);
 }
 EXPORT_SYMBOL(gnet_stats_start_copy);
 
@@ -169,7 +171,8 @@ gnet_stats_copy_basic(struct gnet_dump *d,
 		memset(&sb, 0, sizeof(sb));
 		sb.bytes = bstats.bytes;
 		sb.packets = bstats.packets;
-		return gnet_stats_copy(d, TCA_STATS_BASIC, &sb, sizeof(sb));
+		return gnet_stats_copy(d, TCA_STATS_BASIC, &sb, sizeof(sb),
+				       TCA_STATS_PAD);
 	}
 	return 0;
 }
@@ -208,11 +211,13 @@ gnet_stats_copy_rate_est(struct gnet_dump *d,
 	}
 
 	if (d->tail) {
-		res = gnet_stats_copy(d, TCA_STATS_RATE_EST, &est, sizeof(est));
+		res = gnet_stats_copy(d, TCA_STATS_RATE_EST, &est, sizeof(est),
+				      TCA_STATS_PAD);
 		if (res < 0 || est.bps == r->bps)
 			return res;
 		/* emit 64bit stats only if needed */
-		return gnet_stats_copy(d, TCA_STATS_RATE_EST64, r, sizeof(*r));
+		return gnet_stats_copy(d, TCA_STATS_RATE_EST64, r, sizeof(*r),
+				       TCA_STATS_PAD);
 	}
 
 	return 0;
@@ -286,7 +291,8 @@ gnet_stats_copy_queue(struct gnet_dump *d,
 
 	if (d->tail)
 		return gnet_stats_copy(d, TCA_STATS_QUEUE,
-				       &qstats, sizeof(qstats));
+				       &qstats, sizeof(qstats),
+				       TCA_STATS_PAD);
 
 	return 0;
 }
@@ -316,7 +322,8 @@ gnet_stats_copy_app(struct gnet_dump *d, void *st, int len)
 	}
 
 	if (d->tail)
-		return gnet_stats_copy(d, TCA_STATS_APP, st, len);
+		return gnet_stats_copy(d, TCA_STATS_APP, st, len,
+				       TCA_STATS_PAD);
 
 	return 0;
 
@@ -347,12 +354,12 @@ gnet_stats_finish_copy(struct gnet_dump *d)
 
 	if (d->compat_tc_stats)
 		if (gnet_stats_copy(d, d->compat_tc_stats, &d->tc_stats,
-			sizeof(d->tc_stats)) < 0)
+				    sizeof(d->tc_stats), d->padattr) < 0)
 			return -1;
 
 	if (d->compat_xstats && d->xstats) {
 		if (gnet_stats_copy(d, d->compat_xstats, d->xstats,
-			d->xstats_len) < 0)
+				    d->xstats_len, d->padattr) < 0)
 			return -1;
 	}
 
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 96066665e376..336774a535c3 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -657,12 +657,15 @@ 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, &p->tcfc_lock, &d);
+							   TCA_STATS,
+							   TCA_XSTATS,
+							   &p->tcfc_lock, &d,
+							   TCA_PAD);
 		else
 			return 0;
 	} else
 		err = gnet_stats_start_copy(skb, TCA_ACT_STATS,
-					    &p->tcfc_lock, &d);
+					    &p->tcfc_lock, &d, TCA_ACT_PAD);
 
 	if (err < 0)
 		goto errout;
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index 8c9f1f0459ab..4fd703362563 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -156,7 +156,8 @@ static int tcf_bpf_dump(struct sk_buff *skb, struct tc_action *act,
 	tm.lastuse = jiffies_to_clock_t(jiffies - prog->tcf_tm.lastuse);
 	tm.expires = jiffies_to_clock_t(prog->tcf_tm.expires);
 
-	if (nla_put(skb, TCA_ACT_BPF_TM, sizeof(tm), &tm))
+	if (nla_put_64bit(skb, TCA_ACT_BPF_TM, sizeof(tm), &tm,
+			  TCA_ACT_BPF_PAD))
 		goto nla_put_failure;
 
 	return skb->len;
diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c
index c0ed93ce2391..2ba700c765e0 100644
--- a/net/sched/act_connmark.c
+++ b/net/sched/act_connmark.c
@@ -163,7 +163,8 @@ static inline int tcf_connmark_dump(struct sk_buff *skb, struct tc_action *a,
 	t.install = jiffies_to_clock_t(jiffies - ci->tcf_tm.install);
 	t.lastuse = jiffies_to_clock_t(jiffies - ci->tcf_tm.lastuse);
 	t.expires = jiffies_to_clock_t(ci->tcf_tm.expires);
-	if (nla_put(skb, TCA_CONNMARK_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_CONNMARK_TM, sizeof(t), &t,
+			  TCA_CONNMARK_PAD))
 		goto nla_put_failure;
 
 	return skb->len;
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index d22426cdebc0..28e934ed038a 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -549,7 +549,7 @@ static int tcf_csum_dump(struct sk_buff *skb,
 	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);
-	if (nla_put(skb, TCA_CSUM_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_CSUM_TM, sizeof(t), &t, TCA_CSUM_PAD))
 		goto nla_put_failure;
 
 	return skb->len;
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index 887fc1f209ff..1a6e09fbb2a5 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -177,7 +177,7 @@ static int tcf_gact_dump(struct sk_buff *skb, struct tc_action *a, int bind, int
 	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);
-	if (nla_put(skb, TCA_GACT_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_GACT_TM, sizeof(t), &t, TCA_GACT_PAD))
 		goto nla_put_failure;
 	return skb->len;
 
diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c
index c589a9ba506a..556f44c9c454 100644
--- a/net/sched/act_ife.c
+++ b/net/sched/act_ife.c
@@ -550,7 +550,7 @@ static int tcf_ife_dump(struct sk_buff *skb, struct tc_action *a, int bind,
 	t.install = jiffies_to_clock_t(jiffies - ife->tcf_tm.install);
 	t.lastuse = jiffies_to_clock_t(jiffies - ife->tcf_tm.lastuse);
 	t.expires = jiffies_to_clock_t(ife->tcf_tm.expires);
-	if (nla_put(skb, TCA_IFE_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_IFE_TM, sizeof(t), &t, TCA_IFE_PAD))
 		goto nla_put_failure;
 
 	if (!is_zero_ether_addr(ife->eth_dst)) {
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 350e134cffb3..1464f6a09446 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -275,7 +275,7 @@ static int tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind, int
 	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);
-	if (nla_put(skb, TCA_IPT_TM, sizeof (tm), &tm))
+	if (nla_put_64bit(skb, TCA_IPT_TM, sizeof(tm), &tm, TCA_IPT_PAD))
 		goto nla_put_failure;
 	kfree(t);
 	return skb->len;
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index e8a760cf7775..dea57c1ec90c 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -214,7 +214,7 @@ static int tcf_mirred_dump(struct sk_buff *skb, struct tc_action *a, int bind, i
 	t.install = jiffies_to_clock_t(jiffies - m->tcf_tm.install);
 	t.lastuse = jiffies_to_clock_t(jiffies - m->tcf_tm.lastuse);
 	t.expires = jiffies_to_clock_t(m->tcf_tm.expires);
-	if (nla_put(skb, TCA_MIRRED_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_MIRRED_TM, sizeof(t), &t, TCA_MIRRED_PAD))
 		goto nla_put_failure;
 	return skb->len;
 
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 0f65cdfbfb1d..c0a879f940de 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -267,7 +267,7 @@ static int tcf_nat_dump(struct sk_buff *skb, struct tc_action *a,
 	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);
-	if (nla_put(skb, TCA_NAT_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_NAT_TM, sizeof(t), &t, TCA_NAT_PAD))
 		goto nla_put_failure;
 
 	return skb->len;
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 429c3ab65142..c6e18f230af6 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -203,7 +203,7 @@ static int tcf_pedit_dump(struct sk_buff *skb, struct tc_action *a,
 	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);
-	if (nla_put(skb, TCA_PEDIT_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_PEDIT_TM, sizeof(t), &t, TCA_PEDIT_PAD))
 		goto nla_put_failure;
 	kfree(opt);
 	return skb->len;
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index 75b2be13fbcc..2057fd56d74c 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -155,7 +155,7 @@ static int tcf_simp_dump(struct sk_buff *skb, struct tc_action *a,
 	t.install = jiffies_to_clock_t(jiffies - d->tcf_tm.install);
 	t.lastuse = jiffies_to_clock_t(jiffies - d->tcf_tm.lastuse);
 	t.expires = jiffies_to_clock_t(d->tcf_tm.expires);
-	if (nla_put(skb, TCA_DEF_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_DEF_TM, sizeof(t), &t, TCA_DEF_PAD))
 		goto nla_put_failure;
 	return skb->len;
 
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index cfcdbdc00c9b..51b24998904f 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -167,7 +167,7 @@ static int tcf_skbedit_dump(struct sk_buff *skb, struct tc_action *a,
 	t.install = jiffies_to_clock_t(jiffies - d->tcf_tm.install);
 	t.lastuse = jiffies_to_clock_t(jiffies - d->tcf_tm.lastuse);
 	t.expires = jiffies_to_clock_t(d->tcf_tm.expires);
-	if (nla_put(skb, TCA_SKBEDIT_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_SKBEDIT_TM, sizeof(t), &t, TCA_SKBEDIT_PAD))
 		goto nla_put_failure;
 	return skb->len;
 
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index bab8ae0cefc0..c1682ab9bc7e 100644
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -175,7 +175,7 @@ static int tcf_vlan_dump(struct sk_buff *skb, struct tc_action *a,
 	t.install = jiffies_to_clock_t(jiffies - v->tcf_tm.install);
 	t.lastuse = jiffies_to_clock_t(jiffies - v->tcf_tm.lastuse);
 	t.expires = jiffies_to_clock_t(v->tcf_tm.expires);
-	if (nla_put(skb, TCA_VLAN_TM, sizeof(t), &t))
+	if (nla_put_64bit(skb, TCA_VLAN_TM, sizeof(t), &t, TCA_VLAN_PAD))
 		goto nla_put_failure;
 	return skb->len;
 
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 563cdad76448..e64877a3c084 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -1140,9 +1140,10 @@ static int u32_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
 				gpf->kcnts[i] += pf->kcnts[i];
 		}
 
-		if (nla_put(skb, TCA_U32_PCNT,
-			    sizeof(struct tc_u32_pcnt) + n->sel.nkeys*sizeof(u64),
-			    gpf)) {
+		if (nla_put_64bit(skb, TCA_U32_PCNT,
+				  sizeof(struct tc_u32_pcnt) +
+				  n->sel.nkeys * sizeof(u64),
+				  gpf, TCA_U32_PAD)) {
 			kfree(gpf);
 			goto nla_put_failure;
 		}
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 3b180ff72f79..64f71a2155f3 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1365,7 +1365,8 @@ static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid,
 		goto nla_put_failure;
 
 	if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS, TCA_XSTATS,
-					 qdisc_root_sleeping_lock(q), &d) < 0)
+					 qdisc_root_sleeping_lock(q), &d,
+					 TCA_PAD) < 0)
 		goto nla_put_failure;
 
 	if (q->ops->dump_stats && q->ops->dump_stats(q, &d) < 0)
@@ -1679,7 +1680,8 @@ static int tc_fill_tclass(struct sk_buff *skb, struct Qdisc *q,
 		goto nla_put_failure;
 
 	if (gnet_stats_start_copy_compat(skb, TCA_STATS2, TCA_STATS, TCA_XSTATS,
-					 qdisc_root_sleeping_lock(q), &d) < 0)
+					 qdisc_root_sleeping_lock(q), &d,
+					 TCA_PAD) < 0)
 		goto nla_put_failure;
 
 	if (cl_ops->dump_stats && cl_ops->dump_stats(q, cl, &d) < 0)