| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <48856C68.2020205@cn.fujitsu.com>
Date: Tue, 22 Jul 2008 13:13:12 +0800
From: Wang Chen <wangchen@...fujitsu.com>
To: Jeff Garzik <jgarzik@...ox.com>
CC: NETDEV <netdev@...r.kernel.org>
Subject: RESEND [PATCH 1/2] net-driver: Drivers don't set IFF_* flag
Some hardware set promisc when they are requested to set IFF_ALLMULTI flag.
It's ok, but if drivers set IFF_PROMISC flag when they set promisc,
it will broken upper layer handle for promisc and allmulti.
In addition, drivers can use their own hardware programming to make it.
So do not allow drivers to set IFF_* flags.
This is a general driver fix, so I didn't split it to pieces and send
to specific driver maintainers.
Signed-off-by: Wang Chen <wangchen@...fujitsu.com>
---
diff --git a/drivers/net/3c523.c b/drivers/net/3c523.c
index dc6e474..e2ce41d 100644
--- a/drivers/net/3c523.c
+++ b/drivers/net/3c523.c
@@ -640,10 +640,8 @@ static int init586(struct net_device *dev)
cfg_cmd->time_low = 0x00;
cfg_cmd->time_high = 0xf2;
cfg_cmd->promisc = 0;
- if (dev->flags & (IFF_ALLMULTI | IFF_PROMISC)) {
+ if (dev->flags & (IFF_ALLMULTI | IFF_PROMISC))
cfg_cmd->promisc = 1;
- dev->flags |= IFF_PROMISC;
- }
cfg_cmd->carr_coll = 0x00;
p->scb->cbl_offset = make16(cfg_cmd);
diff --git a/drivers/net/3c527.c b/drivers/net/3c527.c
index 6aca0c6..abc84f7 100644
--- a/drivers/net/3c527.c
+++ b/drivers/net/3c527.c
@@ -1521,14 +1521,11 @@ static void do_mc32_set_multicast_list(struct net_device *dev, int retry)
struct mc32_local *lp = netdev_priv(dev);
u16 filt = (1<<2); /* Save Bad Packets, for stats purposes */
- if (dev->flags&IFF_PROMISC)
+ if ((dev->flags&IFF_PROMISC) ||
+ (dev->flags&IFF_ALLMULTI) ||
+ dev->mc_count > 10)
/* Enable promiscuous mode */
filt |= 1;
- else if((dev->flags&IFF_ALLMULTI) || dev->mc_count > 10)
- {
- dev->flags|=IFF_PROMISC;
- filt |= 1;
- }
else if(dev->mc_count)
{
unsigned char block[62];
diff --git a/drivers/net/atp.c b/drivers/net/atp.c
index 3d44333..c10cd80 100644
--- a/drivers/net/atp.c
+++ b/drivers/net/atp.c
@@ -854,14 +854,9 @@ static void set_rx_mode_8002(struct net_device *dev)
struct net_local *lp = netdev_priv(dev);
long ioaddr = dev->base_addr;
- if ( dev->mc_count > 0 || (dev->flags & (IFF_ALLMULTI|IFF_PROMISC))) {
- /* We must make the kernel realise we had to move
- * into promisc mode or we start all out war on
- * the cable. - AC
- */
- dev->flags|=IFF_PROMISC;
+ if (dev->mc_count > 0 || (dev->flags & (IFF_ALLMULTI|IFF_PROMISC)))
lp->addr_mode = CMR2h_PROMISC;
- } else
+ else
lp->addr_mode = CMR2h_Normal;
write_reg_high(ioaddr, CMR2, lp->addr_mode);
}
diff --git a/drivers/net/de620.c b/drivers/net/de620.c
index 3f5190c..d454e14 100644
--- a/drivers/net/de620.c
+++ b/drivers/net/de620.c
@@ -488,13 +488,6 @@ static void de620_set_multicast_list(struct net_device *dev)
{
if (dev->mc_count || dev->flags&(IFF_ALLMULTI|IFF_PROMISC))
{ /* Enable promiscuous mode */
- /*
- * We must make the kernel realise we had to move
- * into promisc mode or we start all out war on
- * the cable. - AC
- */
- dev->flags|=IFF_PROMISC;
-
de620_set_register(dev, W_TCR, (TCR_DEF & ~RXPBM) | RXALL);
}
else
diff --git a/drivers/net/eepro.c b/drivers/net/eepro.c
index 56f5049..1f11350 100644
--- a/drivers/net/eepro.c
+++ b/drivers/net/eepro.c
@@ -1283,14 +1283,6 @@ set_multicast_list(struct net_device *dev)
if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
{
- /*
- * We must make the kernel realise we had to move
- * into promisc mode or we start all out war on
- * the cable. If it was a promisc request the
- * flag is already set. If not we assert it.
- */
- dev->flags|=IFF_PROMISC;
-
eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
mode = inb(ioaddr + REG2);
outb(mode | PRMSC_Mode, ioaddr + REG2);
diff --git a/drivers/net/eth16i.c b/drivers/net/eth16i.c
index e3dd8b1..bee8b3f 100644
--- a/drivers/net/eth16i.c
+++ b/drivers/net/eth16i.c
@@ -1356,7 +1356,6 @@ static void eth16i_multicast(struct net_device *dev)
if(dev->mc_count || dev->flags&(IFF_ALLMULTI|IFF_PROMISC))
{
- dev->flags|=IFF_PROMISC; /* Must do this */
outb(3, ioaddr + RECEIVE_MODE_REG);
} else {
outb(2, ioaddr + RECEIVE_MODE_REG);
diff --git a/drivers/net/lp486e.c b/drivers/net/lp486e.c
index 591a7e4..83fa9d8 100644
--- a/drivers/net/lp486e.c
+++ b/drivers/net/lp486e.c
@@ -1272,8 +1272,6 @@ static void set_multicast_list(struct net_device *dev) {
return;
}
if (dev->mc_count == 0 && !(dev->flags & (IFF_PROMISC | IFF_ALLMULTI))) {
- if (dev->flags & IFF_ALLMULTI)
- dev->flags |= IFF_PROMISC;
lp->i596_config[8] &= ~0x01;
} else {
lp->i596_config[8] |= 0x01;
diff --git a/drivers/net/ni5010.c b/drivers/net/ni5010.c
index a20005c..8e0ca9f 100644
--- a/drivers/net/ni5010.c
+++ b/drivers/net/ni5010.c
@@ -648,7 +648,6 @@ static void ni5010_set_multicast_list(struct net_device *dev)
PRINTK2((KERN_DEBUG "%s: entering set_multicast_list\n", dev->name));
if (dev->flags&IFF_PROMISC || dev->flags&IFF_ALLMULTI || dev->mc_list) {
- dev->flags |= IFF_PROMISC;
outb(RMD_PROMISC, EDLC_RMODE); /* Enable promiscuous mode */
PRINTK((KERN_DEBUG "%s: Entering promiscuous mode\n", dev->name));
} else {
diff --git a/drivers/net/ni52.c b/drivers/net/ni52.c
index a316dcc..b9a882d 100644
--- a/drivers/net/ni52.c
+++ b/drivers/net/ni52.c
@@ -621,7 +621,7 @@ static int init586(struct net_device *dev)
if (num_addrs > len) {
printk(KERN_ERR "%s: switching to promisc. mode\n",
dev->name);
- dev->flags |= IFF_PROMISC;
+ writeb(0x01, &cfg_cmd->promisc);
}
}
if (dev->flags & IFF_PROMISC)
diff --git a/drivers/net/sun3_82586.c b/drivers/net/sun3_82586.c
index 9b2a7f7..e531302 100644
--- a/drivers/net/sun3_82586.c
+++ b/drivers/net/sun3_82586.c
@@ -425,14 +425,11 @@ static int init586(struct net_device *dev)
int len = ((char *) p->iscp - (char *) ptr - 8) / 6;
if(num_addrs > len) {
printk("%s: switching to promisc. mode\n",dev->name);
- dev->flags|=IFF_PROMISC;
+ cfg_cmd->promisc = 1;
}
}
if(dev->flags&IFF_PROMISC)
- {
- cfg_cmd->promisc=1;
- dev->flags|=IFF_PROMISC;
- }
+ cfg_cmd->promisc = 1;
cfg_cmd->carr_coll = 0x00;
p->scb->cbl_offset = make16(cfg_cmd);
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c
index b047306..1ebcafe 100644
--- a/drivers/net/wireless/orinoco.c
+++ b/drivers/net/wireless/orinoco.c
@@ -1998,13 +1998,6 @@ __orinoco_set_multicast_list(struct net_device *dev)
else
priv->mc_count = mc_count;
}
-
- /* Since we can set the promiscuous flag when it wasn't asked
- for, make sure the net_device knows about it. */
- if (priv->promiscuous)
- dev->flags |= IFF_PROMISC;
- else
- dev->flags &= ~IFF_PROMISC;
}
/* This must be called from user context, without locks held - use
diff --git a/drivers/net/wireless/wavelan.c b/drivers/net/wireless/wavelan.c
index 49ae970..136220b 100644
--- a/drivers/net/wireless/wavelan.c
+++ b/drivers/net/wireless/wavelan.c
@@ -1409,9 +1409,6 @@ static void wavelan_set_multicast_list(struct net_device * dev)
lp->mc_count = 0;
wv_82586_reconfig(dev);
-
- /* Tell the kernel that we are doing a really bad job. */
- dev->flags |= IFF_PROMISC;
}
} else
/* Are there multicast addresses to send? */
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
index b584c0e..00a3559 100644
--- a/drivers/net/wireless/wavelan_cs.c
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -1412,9 +1412,6 @@ wavelan_set_multicast_list(struct net_device * dev)
lp->mc_count = 0;
wv_82593_reconfig(dev);
-
- /* Tell the kernel that we are doing a really bad job... */
- dev->flags |= IFF_PROMISC;
}
}
else
@@ -1433,9 +1430,6 @@ wavelan_set_multicast_list(struct net_device * dev)
lp->mc_count = 0;
wv_82593_reconfig(dev);
-
- /* Tell the kernel that we are doing a really bad job... */
- dev->flags |= IFF_ALLMULTI;
}
}
else
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists