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path: root/drivers/net/pppoe.c
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Diffstat (limited to 'drivers/net/pppoe.c')
-rw-r--r--drivers/net/pppoe.c56
1 files changed, 32 insertions, 24 deletions
diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c
index 9b30cd600a64..8936ed3469cf 100644
--- a/drivers/net/pppoe.c
+++ b/drivers/net/pppoe.c
@@ -78,6 +78,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <net/net_namespace.h>
#include <net/sock.h>
#include <asm/uaccess.h>
@@ -102,7 +103,7 @@ static inline int cmp_2_addr(struct pppoe_addr *a, struct pppoe_addr *b)
(memcmp(a->remote, b->remote, ETH_ALEN) == 0));
}
-static inline int cmp_addr(struct pppoe_addr *a, unsigned long sid, char *addr)
+static inline int cmp_addr(struct pppoe_addr *a, __be16 sid, char *addr)
{
return (a->sid == sid &&
(memcmp(a->remote,addr,ETH_ALEN) == 0));
@@ -112,7 +113,7 @@ static inline int cmp_addr(struct pppoe_addr *a, unsigned long sid, char *addr)
#error 8 must be a multiple of PPPOE_HASH_BITS
#endif
-static int hash_item(unsigned int sid, unsigned char *addr)
+static int hash_item(__be16 sid, unsigned char *addr)
{
unsigned char hash = 0;
unsigned int i;
@@ -121,7 +122,7 @@ static int hash_item(unsigned int sid, unsigned char *addr)
hash ^= addr[i];
}
for (i = 0 ; i < sizeof(sid_t)*8 ; i += 8 ){
- hash ^= sid>>i;
+ hash ^= (__force __u32)sid>>i;
}
for (i = 8 ; (i>>=1) >= PPPOE_HASH_BITS ; ) {
hash ^= hash>>i;
@@ -138,7 +139,7 @@ static struct pppox_sock *item_hash_table[PPPOE_HASH_SIZE];
* Set/get/delete/rehash items (internal versions)
*
**********************************************************************/
-static struct pppox_sock *__get_item(unsigned long sid, unsigned char *addr, int ifindex)
+static struct pppox_sock *__get_item(__be16 sid, unsigned char *addr, int ifindex)
{
int hash = hash_item(sid, addr);
struct pppox_sock *ret;
@@ -170,7 +171,7 @@ static int __set_item(struct pppox_sock *po)
return 0;
}
-static struct pppox_sock *__delete_item(unsigned long sid, char *addr, int ifindex)
+static struct pppox_sock *__delete_item(__be16 sid, char *addr, int ifindex)
{
int hash = hash_item(sid, addr);
struct pppox_sock *ret, **src;
@@ -196,7 +197,7 @@ static struct pppox_sock *__delete_item(unsigned long sid, char *addr, int ifind
* Set/get/delete/rehash items
*
**********************************************************************/
-static inline struct pppox_sock *get_item(unsigned long sid,
+static inline struct pppox_sock *get_item(__be16 sid,
unsigned char *addr, int ifindex)
{
struct pppox_sock *po;
@@ -215,7 +216,7 @@ static inline struct pppox_sock *get_item_by_addr(struct sockaddr_pppox *sp)
struct net_device *dev;
int ifindex;
- dev = dev_get_by_name(sp->sa_addr.pppoe.dev);
+ dev = dev_get_by_name(&init_net, sp->sa_addr.pppoe.dev);
if(!dev)
return NULL;
ifindex = dev->ifindex;
@@ -223,7 +224,7 @@ static inline struct pppox_sock *get_item_by_addr(struct sockaddr_pppox *sp)
return get_item(sp->sa_addr.pppoe.sid, sp->sa_addr.pppoe.remote, ifindex);
}
-static inline struct pppox_sock *delete_item(unsigned long sid, char *addr, int ifindex)
+static inline struct pppox_sock *delete_item(__be16 sid, char *addr, int ifindex)
{
struct pppox_sock *ret;
@@ -300,6 +301,9 @@ static int pppoe_device_event(struct notifier_block *this,
{
struct net_device *dev = (struct net_device *) ptr;
+ if (dev->nd_net != &init_net)
+ return NOTIFY_DONE;
+
/* Only look at sockets that are using this specific device. */
switch (event) {
case NETDEV_CHANGEMTU:
@@ -388,12 +392,15 @@ static int pppoe_rcv(struct sk_buff *skb,
if (!(skb = skb_share_check(skb, GFP_ATOMIC)))
goto out;
+ if (dev->nd_net != &init_net)
+ goto drop;
+
if (!pskb_may_pull(skb, sizeof(struct pppoe_hdr)))
goto drop;
ph = pppoe_hdr(skb);
- po = get_item((unsigned long) ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
+ po = get_item(ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
if (po != NULL)
return sk_receive_skb(sk_pppox(po), skb, 0);
drop:
@@ -417,6 +424,9 @@ static int pppoe_disc_rcv(struct sk_buff *skb,
struct pppoe_hdr *ph;
struct pppox_sock *po;
+ if (dev->nd_net != &init_net)
+ goto abort;
+
if (!pskb_may_pull(skb, sizeof(struct pppoe_hdr)))
goto abort;
@@ -427,7 +437,7 @@ static int pppoe_disc_rcv(struct sk_buff *skb,
if (ph->code != PADT_CODE)
goto abort;
- po = get_item((unsigned long) ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
+ po = get_item(ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
if (po) {
struct sock *sk = sk_pppox(po);
@@ -476,12 +486,12 @@ static struct proto pppoe_sk_proto = {
* Initialize a new struct sock.
*
**********************************************************************/
-static int pppoe_create(struct socket *sock)
+static int pppoe_create(struct net *net, struct socket *sock)
{
int error = -ENOMEM;
struct sock *sk;
- sk = sk_alloc(PF_PPPOX, GFP_KERNEL, &pppoe_sk_proto, 1);
+ sk = sk_alloc(net, PF_PPPOX, GFP_KERNEL, &pppoe_sk_proto, 1);
if (!sk)
goto out;
@@ -593,7 +603,7 @@ static int pppoe_connect(struct socket *sock, struct sockaddr *uservaddr,
/* Don't re-bind if sid==0 */
if (sp->sa_addr.pppoe.sid != 0) {
- dev = dev_get_by_name(sp->sa_addr.pppoe.dev);
+ dev = dev_get_by_name(&init_net, sp->sa_addr.pppoe.dev);
error = -ENODEV;
if (!dev)
@@ -824,8 +834,8 @@ static int pppoe_sendmsg(struct kiocb *iocb, struct socket *sock,
}
error = total_len;
- dev->hard_header(skb, dev, ETH_P_PPP_SES,
- po->pppoe_pa.remote, NULL, total_len);
+ dev_hard_header(skb, dev, ETH_P_PPP_SES,
+ po->pppoe_pa.remote, NULL, total_len);
memcpy(ph, &hdr, sizeof(struct pppoe_hdr));
@@ -876,8 +886,8 @@ static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb)
skb->protocol = __constant_htons(ETH_P_PPP_SES);
skb->dev = dev;
- dev->hard_header(skb, dev, ETH_P_PPP_SES,
- po->pppoe_pa.remote, NULL, data_len);
+ dev_hard_header(skb, dev, ETH_P_PPP_SES,
+ po->pppoe_pa.remote, NULL, data_len);
dev_queue_xmit(skb);
@@ -945,6 +955,7 @@ static int pppoe_seq_show(struct seq_file *seq, void *v)
{
struct pppox_sock *po;
char *dev_name;
+ DECLARE_MAC_BUF(mac);
if (v == SEQ_START_TOKEN) {
seq_puts(seq, "Id Address Device\n");
@@ -954,11 +965,8 @@ static int pppoe_seq_show(struct seq_file *seq, void *v)
po = v;
dev_name = po->pppoe_pa.dev;
- seq_printf(seq, "%08X %02X:%02X:%02X:%02X:%02X:%02X %8s\n",
- po->pppoe_pa.sid,
- po->pppoe_pa.remote[0], po->pppoe_pa.remote[1],
- po->pppoe_pa.remote[2], po->pppoe_pa.remote[3],
- po->pppoe_pa.remote[4], po->pppoe_pa.remote[5], dev_name);
+ seq_printf(seq, "%08X %s %8s\n",
+ po->pppoe_pa.sid, print_mac(mac, po->pppoe_pa.remote), dev_name);
out:
return 0;
}
@@ -1042,7 +1050,7 @@ static int __init pppoe_proc_init(void)
{
struct proc_dir_entry *p;
- p = create_proc_entry("net/pppoe", S_IRUGO, NULL);
+ p = create_proc_entry("pppoe", S_IRUGO, init_net.proc_net);
if (!p)
return -ENOMEM;
@@ -1113,7 +1121,7 @@ static void __exit pppoe_exit(void)
dev_remove_pack(&pppoes_ptype);
dev_remove_pack(&pppoed_ptype);
unregister_netdevice_notifier(&pppoe_notifier);
- remove_proc_entry("net/pppoe", NULL);
+ remove_proc_entry("pppoe", init_net.proc_net);
proto_unregister(&pppoe_sk_proto);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.