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Diffstat (limited to 'net/core')
-rw-r--r--net/core/datagram.c3
-rw-r--r--net/core/dev_mcast.c14
-rw-r--r--net/core/neighbour.c3
-rw-r--r--net/core/pktgen.c18
-rw-r--r--net/core/sock.c106
5 files changed, 86 insertions, 58 deletions
diff --git a/net/core/datagram.c b/net/core/datagram.c
index cb056f4..029b93e 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -450,6 +450,9 @@ int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
__wsum csum;
int chunk = skb->len - hlen;
+ if (!chunk)
+ return 0;
+
/* Skip filled elements.
* Pretty silly, look at memcpy_toiovec, though 8)
*/
diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c
index 99aece1..20330c5 100644
--- a/net/core/dev_mcast.c
+++ b/net/core/dev_mcast.c
@@ -116,11 +116,13 @@ int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl)
*/
int dev_mc_sync(struct net_device *to, struct net_device *from)
{
- struct dev_addr_list *da;
+ struct dev_addr_list *da, *next;
int err = 0;
netif_tx_lock_bh(to);
- for (da = from->mc_list; da != NULL; da = da->next) {
+ da = from->mc_list;
+ while (da != NULL) {
+ next = da->next;
if (!da->da_synced) {
err = __dev_addr_add(&to->mc_list, &to->mc_count,
da->da_addr, da->da_addrlen, 0);
@@ -134,6 +136,7 @@ int dev_mc_sync(struct net_device *to, struct net_device *from)
__dev_addr_delete(&from->mc_list, &from->mc_count,
da->da_addr, da->da_addrlen, 0);
}
+ da = next;
}
if (!err)
__dev_set_rx_mode(to);
@@ -156,12 +159,14 @@ EXPORT_SYMBOL(dev_mc_sync);
*/
void dev_mc_unsync(struct net_device *to, struct net_device *from)
{
- struct dev_addr_list *da;
+ struct dev_addr_list *da, *next;
netif_tx_lock_bh(from);
netif_tx_lock_bh(to);
- for (da = from->mc_list; da != NULL; da = da->next) {
+ da = from->mc_list;
+ while (da != NULL) {
+ next = da->next;
if (!da->da_synced)
continue;
__dev_addr_delete(&to->mc_list, &to->mc_count,
@@ -169,6 +174,7 @@ void dev_mc_unsync(struct net_device *to, struct net_device *from)
da->da_synced = 0;
__dev_addr_delete(&from->mc_list, &from->mc_count,
da->da_addr, da->da_addrlen, 0);
+ da = next;
}
__dev_set_rx_mode(to);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index ca2a153..f7de8f2 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -33,6 +33,7 @@
#include <linux/rtnetlink.h>
#include <linux/random.h>
#include <linux/string.h>
+#include <linux/log2.h>
#define NEIGH_DEBUG 1
@@ -311,7 +312,7 @@ static void neigh_hash_grow(struct neigh_table *tbl, unsigned long new_entries)
NEIGH_CACHE_STAT_INC(tbl, hash_grows);
- BUG_ON(new_entries & (new_entries - 1));
+ BUG_ON(!is_power_of_2(new_entries));
new_hash = neigh_hash_alloc(new_entries);
if (!new_hash)
return;
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 7bae576..803d0c88 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -111,6 +111,9 @@
*
* 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <francesco.fondelli@gmail.com>
*
+ * Fixed src_mac command to set source mac of packet to value specified in
+ * command by Adit Ranadive <adit.262@gmail.com>
+ *
*/
#include <linux/sys.h>
#include <linux/types.h>
@@ -380,7 +383,6 @@ struct pktgen_thread {
/* Field for thread to receive "posted" events terminate, stop ifs etc. */
u32 control;
- int pid;
int cpu;
wait_queue_head_t queue;
@@ -1452,8 +1454,11 @@ static ssize_t pktgen_if_write(struct file *file,
}
if (!strcmp(name, "src_mac")) {
char *v = valstr;
+ unsigned char old_smac[ETH_ALEN];
unsigned char *m = pkt_dev->src_mac;
+ memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN);
+
len = strn_len(&user_buffer[i], sizeof(valstr) - 1);
if (len < 0) {
return len;
@@ -1482,6 +1487,10 @@ static ssize_t pktgen_if_write(struct file *file,
}
}
+ /* Set up Src MAC */
+ if (compare_ether_addr(old_smac, pkt_dev->src_mac))
+ memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN);
+
sprintf(pg_result, "OK: srcmac");
return count;
}
@@ -3331,8 +3340,9 @@ static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev)
}
if ((netif_queue_stopped(odev) ||
- netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping)) ||
- need_resched()) {
+ (pkt_dev->skb &&
+ netif_subqueue_stopped(odev, pkt_dev->skb->queue_mapping))) ||
+ need_resched()) {
idle_start = getCurUs();
if (!netif_running(odev)) {
@@ -3462,8 +3472,6 @@ static int pktgen_thread_worker(void *arg)
init_waitqueue_head(&t->queue);
- t->pid = current->pid;
-
pr_debug("pktgen: starting pktgen/%d: pid=%d\n", cpu, current->pid);
max_before_softirq = t->max_before_softirq;
diff --git a/net/core/sock.c b/net/core/sock.c
index cfed7d4..190de61 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -362,6 +362,61 @@ struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie)
}
EXPORT_SYMBOL(sk_dst_check);
+static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen)
+{
+ int ret = -ENOPROTOOPT;
+#ifdef CONFIG_NETDEVICES
+ char devname[IFNAMSIZ];
+ int index;
+
+ /* Sorry... */
+ ret = -EPERM;
+ if (!capable(CAP_NET_RAW))
+ goto out;
+
+ ret = -EINVAL;
+ if (optlen < 0)
+ goto out;
+
+ /* Bind this socket to a particular device like "eth0",
+ * as specified in the passed interface name. If the
+ * name is "" or the option length is zero the socket
+ * is not bound.
+ */
+ if (optlen > IFNAMSIZ - 1)
+ optlen = IFNAMSIZ - 1;
+ memset(devname, 0, sizeof(devname));
+
+ ret = -EFAULT;
+ if (copy_from_user(devname, optval, optlen))
+ goto out;
+
+ if (devname[0] == '\0') {
+ index = 0;
+ } else {
+ struct net_device *dev = dev_get_by_name(devname);
+
+ ret = -ENODEV;
+ if (!dev)
+ goto out;
+
+ index = dev->ifindex;
+ dev_put(dev);
+ }
+
+ lock_sock(sk);
+ sk->sk_bound_dev_if = index;
+ sk_dst_reset(sk);
+ release_sock(sk);
+
+ ret = 0;
+
+out:
+#endif
+
+ return ret;
+}
+
/*
* This is meant for all protocols to use and covers goings on
* at the socket level. Everything here is generic.
@@ -390,6 +445,9 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
}
#endif
+ if (optname == SO_BINDTODEVICE)
+ return sock_bindtodevice(sk, optval, optlen);
+
if (optlen < sizeof(int))
return -EINVAL;
@@ -578,54 +636,6 @@ set_rcvbuf:
ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen);
break;
-#ifdef CONFIG_NETDEVICES
- case SO_BINDTODEVICE:
- {
- char devname[IFNAMSIZ];
-
- /* Sorry... */
- if (!capable(CAP_NET_RAW)) {
- ret = -EPERM;
- break;
- }
-
- /* Bind this socket to a particular device like "eth0",
- * as specified in the passed interface name. If the
- * name is "" or the option length is zero the socket
- * is not bound.
- */
-
- if (!valbool) {
- sk->sk_bound_dev_if = 0;
- } else {
- if (optlen > IFNAMSIZ - 1)
- optlen = IFNAMSIZ - 1;
- memset(devname, 0, sizeof(devname));
- if (copy_from_user(devname, optval, optlen)) {
- ret = -EFAULT;
- break;
- }
-
- /* Remove any cached route for this socket. */
- sk_dst_reset(sk);
-
- if (devname[0] == '\0') {
- sk->sk_bound_dev_if = 0;
- } else {
- struct net_device *dev = dev_get_by_name(devname);
- if (!dev) {
- ret = -ENODEV;
- break;
- }
- sk->sk_bound_dev_if = dev->ifindex;
- dev_put(dev);
- }
- }
- break;
- }
-#endif
-
-
case SO_ATTACH_FILTER:
ret = -EINVAL;
if (optlen == sizeof(struct sock_fprog)) {
generated by cgit v0.10.2 at 2024-09-13 13:36:08 (GMT)