X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Ftehuti.c;h=432e837a17607e323021da0d98dccdc310b1705e;hb=43fc63dceb8ff58c5ef0a30c70abd31336b5e8b4;hp=4e1b84e6d66ab308330184a034ba7f52d82fb91a;hpb=fb9fc395174138983a49f2da982ed14caabbe741;p=linux-2.6

diff --git a/drivers/net/tehuti.c b/drivers/net/tehuti.c
index 4e1b84e6d6..432e837a17 100644
--- a/drivers/net/tehuti.c
+++ b/drivers/net/tehuti.c
@@ -621,10 +621,16 @@ err:
 static void __init bdx_firmware_endianess(void)
 {
 	int i;
-	for (i = 0; i < sizeof(s_firmLoad) / sizeof(u32); i++)
+	for (i = 0; i < ARRAY_SIZE(s_firmLoad); i++)
 		s_firmLoad[i] = CPU_CHIP_SWAP32(s_firmLoad[i]);
 }
 
+static int bdx_range_check(struct bdx_priv *priv, u32 offset)
+{
+	return (offset > (u32) (BDX_REGS_SIZE / priv->nic->port_num)) ?
+		-EINVAL : 0;
+}
+
 static int bdx_ioctl_priv(struct net_device *ndev, struct ifreq *ifr, int cmd)
 {
 	struct bdx_priv *priv = ndev->priv;
@@ -643,9 +649,15 @@ static int bdx_ioctl_priv(struct net_device *ndev, struct ifreq *ifr, int cmd)
 		DBG("%d 0x%x 0x%x\n", data[0], data[1], data[2]);
 	}
 
+	if (!capable(CAP_SYS_RAWIO))
+		return -EPERM;
+
 	switch (data[0]) {
 
 	case BDX_OP_READ:
+		error = bdx_range_check(priv, data[1]);
+		if (error < 0)
+			return error;
 		data[2] = READ_REG(priv, data[1]);
 		DBG("read_reg(0x%x)=0x%x (dec %d)\n", data[1], data[2],
 		    data[2]);
@@ -655,6 +667,9 @@ static int bdx_ioctl_priv(struct net_device *ndev, struct ifreq *ifr, int cmd)
 		break;
 
 	case BDX_OP_WRITE:
+		error = bdx_range_check(priv, data[1]);
+		if (error < 0)
+			return error;
 		WRITE_REG(priv, data[1], data[2]);
 		DBG("write_reg(0x%x, 0x%x)\n", data[1], data[2]);
 		break;
@@ -2168,14 +2183,13 @@ bdx_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 {
 	struct bdx_priv *priv = netdev->priv;
 
-	strncat(drvinfo->driver, BDX_DRV_NAME, sizeof(drvinfo->driver));
-	strncat(drvinfo->version, BDX_DRV_VERSION, sizeof(drvinfo->version));
-	strncat(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
-	strncat(drvinfo->bus_info, pci_name(priv->pdev),
+	strlcat(drvinfo->driver, BDX_DRV_NAME, sizeof(drvinfo->driver));
+	strlcat(drvinfo->version, BDX_DRV_VERSION, sizeof(drvinfo->version));
+	strlcat(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
+	strlcat(drvinfo->bus_info, pci_name(priv->pdev),
 		sizeof(drvinfo->bus_info));
 
-	drvinfo->n_stats = ((priv->stats_flag) ?
-			    (sizeof(bdx_stat_names) / ETH_GSTRING_LEN) : 0);
+	drvinfo->n_stats = ((priv->stats_flag) ? ARRAY_SIZE(bdx_stat_names) : 0);
 	drvinfo->testinfo_len = 0;
 	drvinfo->regdump_len = 0;
 	drvinfo->eedump_len = 0;
@@ -2375,10 +2389,9 @@ static void bdx_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 static int bdx_get_stats_count(struct net_device *netdev)
 {
 	struct bdx_priv *priv = netdev->priv;
-	BDX_ASSERT(sizeof(bdx_stat_names) / ETH_GSTRING_LEN
+	BDX_ASSERT(ARRAY_SIZE(bdx_stat_names)
 		   != sizeof(struct bdx_stats) / sizeof(u64));
-	return ((priv->stats_flag) ? (sizeof(bdx_stat_names) / ETH_GSTRING_LEN)
-		: 0);
+	return ((priv->stats_flag) ? ARRAY_SIZE(bdx_stat_names)	: 0);
 }
 
 /*