| 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: <1405584370-30054-5-git-send-email-teg@jklm.no>
Date: Thu, 17 Jul 2014 10:06:05 +0200
From: Tom Gundersen <teg@...m.no>
To: netdev@...r.kernel.org
Cc: David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org,
Tom Gundersen <teg@...m.no>
Subject: [PATCH net-next v9 4/9] net: set name_assign_type when setting names via ioctls
When the user provides a name, set NET_NAME_USER, otherwise an enumerated
name is used, so set NET_NAME_ENUM.
Signed-off-by: Tom Gundersen <teg@...m.no>
---
drivers/net/tun.c | 9 ++++++---
drivers/tty/n_gsm.c | 10 +++++++---
net/atm/br2684.c | 5 +++--
net/bluetooth/bnep/core.c | 2 +-
net/bridge/br_if.c | 7 ++++---
net/bridge/br_ioctl.c | 4 ++--
net/bridge/br_private.h | 2 +-
7 files changed, 24 insertions(+), 15 deletions(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index acaaf67..eac34f5 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1607,6 +1607,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
}
else {
char *name;
+ unsigned char name_assign_type = NET_NAME_ENUM;
unsigned long flags = 0;
int queues = ifr->ifr_flags & IFF_MULTI_QUEUE ?
MAX_TAP_QUEUES : 1;
@@ -1629,12 +1630,14 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
} else
return -EINVAL;
- if (*ifr->ifr_name)
+ if (*ifr->ifr_name) {
name = ifr->ifr_name;
+ name_assign_type = NET_NAME_USER;
+ }
dev = alloc_netdev_mqs(sizeof(struct tun_struct), name,
- NET_NAME_UNKNOWN, tun_setup, queues,
- queues);
+ name_assign_type, tun_setup,
+ queues, queues);
if (!dev)
return -ENOMEM;
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index cde3ab9..d0262d9 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2767,6 +2767,7 @@ static void gsm_destroy_network(struct gsm_dlci *dlci)
static int gsm_create_network(struct gsm_dlci *dlci, struct gsm_netconfig *nc)
{
char *netname;
+ unsigned char name_assign_type = NET_NAME_ENUM;
int retval = 0;
struct net_device *net;
struct gsm_mux_net *mux_net;
@@ -2787,10 +2788,13 @@ static int gsm_create_network(struct gsm_dlci *dlci, struct gsm_netconfig *nc)
pr_debug("create network interface");
netname = "gsm%d";
- if (nc->if_name[0] != '\0')
+ if (nc->if_name[0] != '\0') {
netname = nc->if_name;
- net = alloc_netdev(sizeof(struct gsm_mux_net), netname,
- NET_NAME_UNKNOWN, gsm_mux_net_init);
+ name_assign_type = NET_NAME_USER;
+ }
+ net = alloc_netdev(sizeof(struct gsm_mux_net),
+ netname, name_assign_type,
+ gsm_mux_net_init);
if (!net) {
pr_err("alloc_netdev failed");
return -ENOMEM;
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index cc78538..cb8d122 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -682,8 +682,9 @@ static int br2684_create(void __user *arg)
netdev = alloc_netdev(sizeof(struct br2684_dev),
ni.ifname[0] ? ni.ifname : "nas%d",
- NET_NAME_UNKNOWN,
- (payload == p_routed) ? br2684_setup_routed : br2684_setup);
+ ni.ifname[0] ? NET_NAME_USER : NET_NAME_ENUM,
+ (payload == p_routed) ?
+ br2684_setup_routed : br2684_setup);
if (!netdev)
return -ENOMEM;
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 85bcc21..6bed7b3 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -539,7 +539,7 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
/* session struct allocated as private part of net_device */
dev = alloc_netdev(sizeof(struct bnep_session),
(*req->device) ? req->device : "bnep%d",
- NET_NAME_UNKNOWN,
+ (*req->device) ? NET_NAME_USER : NET_NAME_ENUM,
bnep_net_setup);
if (!dev)
return -ENOMEM;
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 078d336..f9c6766 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -339,13 +339,14 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
return p;
}
-int br_add_bridge(struct net *net, const char *name)
+int br_add_bridge(struct net *net, const char *name,
+ unsigned char name_assign_type)
{
struct net_device *dev;
int res;
- dev = alloc_netdev(sizeof(struct net_bridge), name, NET_NAME_UNKNOWN,
- br_dev_setup);
+ dev = alloc_netdev(sizeof(struct net_bridge), name,
+ name_assign_type, br_dev_setup);
if (!dev)
return -ENOMEM;
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index a9a4a1b..bdc79a1 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -340,7 +340,7 @@ static int old_deviceless(struct net *net, void __user *uarg)
buf[IFNAMSIZ-1] = 0;
if (args[0] == BRCTL_ADD_BRIDGE)
- return br_add_bridge(net, buf);
+ return br_add_bridge(net, buf, NET_NAME_USER);
return br_del_bridge(net, buf);
}
@@ -369,7 +369,7 @@ int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *uar
buf[IFNAMSIZ-1] = 0;
if (cmd == SIOCBRADDBR)
- return br_add_bridge(net, buf);
+ return br_add_bridge(net, buf, NET_NAME_USER);
return br_del_bridge(net, buf);
}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 62a7fa2..5adc136 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -415,7 +415,7 @@ void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
/* br_if.c */
void br_port_carrier_check(struct net_bridge_port *p);
-int br_add_bridge(struct net *net, const char *name);
+int br_add_bridge(struct net *net, const char *name, unsigned char name_assign_type);
int br_del_bridge(struct net *net, const char *name);
int br_add_if(struct net_bridge *br, struct net_device *dev);
int br_del_if(struct net_bridge *br, struct net_device *dev);
--
1.9.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists