summaryrefslogtreecommitdiff
path: root/net
diff options
context:
space:
mode:
Diffstat (limited to 'net')
-rw-r--r--net/atm/br2684.c78
-rw-r--r--net/core/dev.c38
-rw-r--r--net/core/net_namespace.c3
-rw-r--r--net/ipv4/inet_connection_sock.c6
-rw-r--r--net/ipv4/netfilter/nf_nat_core.c3
-rw-r--r--net/ipv4/raw.c2
-rw-r--r--net/ipv4/tcp_ipv4.c4
-rw-r--r--net/ipv4/xfrm4_mode_tunnel.c2
-rw-r--r--net/ipv6/ip6_input.c9
-rw-r--r--net/ipv6/ipv6_sockglue.c11
-rw-r--r--net/ipv6/sit.c44
-rw-r--r--net/mac80211/tx.c13
-rw-r--r--net/mac80211/wext.c3
-rw-r--r--net/mac80211/wme.c2
-rw-r--r--net/netfilter/nf_conntrack_extend.c9
-rw-r--r--net/netfilter/nf_conntrack_h323_main.c22
-rw-r--r--net/netlink/genetlink.c15
-rw-r--r--net/sched/sch_htb.c23
-rw-r--r--net/sctp/associola.c13
-rw-r--r--net/sctp/protocol.c15
-rw-r--r--net/sctp/socket.c4
-rw-r--r--net/unix/af_unix.c79
22 files changed, 277 insertions, 121 deletions
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index 9d52ebfc1962..05fafdc2eea3 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -188,10 +188,13 @@ static int br2684_xmit_vcc(struct sk_buff *skb, struct br2684_dev *brdev,
return 0;
}
}
- } else {
- skb_push(skb, 2);
- if (brdev->payload == p_bridged)
+ } else { /* e_vc */
+ if (brdev->payload == p_bridged) {
+ skb_push(skb, 2);
memset(skb->data, 0, 2);
+ } else { /* p_routed */
+ skb_pull(skb, ETH_HLEN);
+ }
}
skb_debug(skb);
@@ -377,11 +380,8 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
(skb->data + 6, ethertype_ipv4,
sizeof(ethertype_ipv4)) == 0)
skb->protocol = __constant_htons(ETH_P_IP);
- else {
- brdev->stats.rx_errors++;
- dev_kfree_skb(skb);
- return;
- }
+ else
+ goto error;
skb_pull(skb, sizeof(llc_oui_ipv4));
skb_reset_network_header(skb);
skb->pkt_type = PACKET_HOST;
@@ -394,44 +394,56 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
(memcmp(skb->data, llc_oui_pid_pad, 7) == 0)) {
skb_pull(skb, sizeof(llc_oui_pid_pad));
skb->protocol = eth_type_trans(skb, net_dev);
- } else {
- brdev->stats.rx_errors++;
- dev_kfree_skb(skb);
- return;
- }
+ } else
+ goto error;
- } else {
- /* first 2 chars should be 0 */
- if (*((u16 *) (skb->data)) != 0) {
- brdev->stats.rx_errors++;
- dev_kfree_skb(skb);
- return;
+ } else { /* e_vc */
+ if (brdev->payload == p_routed) {
+ struct iphdr *iph;
+
+ skb_reset_network_header(skb);
+ iph = ip_hdr(skb);
+ if (iph->version == 4)
+ skb->protocol = __constant_htons(ETH_P_IP);
+ else if (iph->version == 6)
+ skb->protocol = __constant_htons(ETH_P_IPV6);
+ else
+ goto error;
+ skb->pkt_type = PACKET_HOST;
+ } else { /* p_bridged */
+ /* first 2 chars should be 0 */
+ if (*((u16 *) (skb->data)) != 0)
+ goto error;
+ skb_pull(skb, BR2684_PAD_LEN);
+ skb->protocol = eth_type_trans(skb, net_dev);
}
- skb_pull(skb, BR2684_PAD_LEN + ETH_HLEN); /* pad, dstmac, srcmac, ethtype */
- skb->protocol = eth_type_trans(skb, net_dev);
}
#ifdef CONFIG_ATM_BR2684_IPFILTER
- if (unlikely(packet_fails_filter(skb->protocol, brvcc, skb))) {
- brdev->stats.rx_dropped++;
- dev_kfree_skb(skb);
- return;
- }
+ if (unlikely(packet_fails_filter(skb->protocol, brvcc, skb)))
+ goto dropped;
#endif /* CONFIG_ATM_BR2684_IPFILTER */
skb->dev = net_dev;
ATM_SKB(skb)->vcc = atmvcc; /* needed ? */
pr_debug("received packet's protocol: %x\n", ntohs(skb->protocol));
skb_debug(skb);
- if (unlikely(!(net_dev->flags & IFF_UP))) {
- /* sigh, interface is down */
- brdev->stats.rx_dropped++;
- dev_kfree_skb(skb);
- return;
- }
+ /* sigh, interface is down? */
+ if (unlikely(!(net_dev->flags & IFF_UP)))
+ goto dropped;
brdev->stats.rx_packets++;
brdev->stats.rx_bytes += skb->len;
memset(ATM_SKB(skb), 0, sizeof(struct atm_skb_data));
netif_rx(skb);
+ return;
+
+dropped:
+ brdev->stats.rx_dropped++;
+ goto free_skb;
+error:
+ brdev->stats.rx_errors++;
+free_skb:
+ dev_kfree_skb(skb);
+ return;
}
/*
@@ -518,9 +530,9 @@ static int br2684_regvcc(struct atm_vcc *atmvcc, void __user * arg)
struct sk_buff *next = skb->next;
skb->next = skb->prev = NULL;
+ br2684_push(atmvcc, skb);
BRPRIV(skb->dev)->stats.rx_bytes -= skb->len;
BRPRIV(skb->dev)->stats.rx_packets--;
- br2684_push(atmvcc, skb);
skb = next;
}
diff --git a/net/core/dev.c b/net/core/dev.c
index 582963077877..c421a1f8f0b9 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -119,6 +119,7 @@
#include <linux/err.h>
#include <linux/ctype.h>
#include <linux/if_arp.h>
+#include <linux/if_vlan.h>
#include "net-sysfs.h"
@@ -1362,6 +1363,29 @@ void netif_device_attach(struct net_device *dev)
}
EXPORT_SYMBOL(netif_device_attach);
+static bool can_checksum_protocol(unsigned long features, __be16 protocol)
+{
+ return ((features & NETIF_F_GEN_CSUM) ||
+ ((features & NETIF_F_IP_CSUM) &&
+ protocol == htons(ETH_P_IP)) ||
+ ((features & NETIF_F_IPV6_CSUM) &&
+ protocol == htons(ETH_P_IPV6)));
+}
+
+static bool dev_can_checksum(struct net_device *dev, struct sk_buff *skb)
+{
+ if (can_checksum_protocol(dev->features, skb->protocol))
+ return true;
+
+ if (skb->protocol == htons(ETH_P_8021Q)) {
+ struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
+ if (can_checksum_protocol(dev->features & dev->vlan_features,
+ veh->h_vlan_encapsulated_proto))
+ return true;
+ }
+
+ return false;
+}
/*
* Invalidate hardware checksum when packet is to be mangled, and
@@ -1640,14 +1664,8 @@ int dev_queue_xmit(struct sk_buff *skb)
if (skb->ip_summed == CHECKSUM_PARTIAL) {
skb_set_transport_header(skb, skb->csum_start -
skb_headroom(skb));
-
- if (!(dev->features & NETIF_F_GEN_CSUM) &&
- !((dev->features & NETIF_F_IP_CSUM) &&
- skb->protocol == htons(ETH_P_IP)) &&
- !((dev->features & NETIF_F_IPV6_CSUM) &&
- skb->protocol == htons(ETH_P_IPV6)))
- if (skb_checksum_help(skb))
- goto out_kfree_skb;
+ if (!dev_can_checksum(dev, skb) && skb_checksum_help(skb))
+ goto out_kfree_skb;
}
gso:
@@ -2059,6 +2077,10 @@ int netif_receive_skb(struct sk_buff *skb)
rcu_read_lock();
+ /* Don't receive packets in an exiting network namespace */
+ if (!net_alive(dev_net(skb->dev)))
+ goto out;
+
#ifdef CONFIG_NET_CLS_ACT
if (skb->tc_verd & TC_NCLS) {
skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 72b4c184dd84..7c52fe277b62 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -140,6 +140,9 @@ static void cleanup_net(struct work_struct *work)
struct pernet_operations *ops;
struct net *net;
+ /* Be very certain incoming network packets will not find us */
+ rcu_barrier();
+
net = container_of(work, struct net, work);
mutex_lock(&net_mutex);
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 045e799d3e1d..ec834480abe7 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -466,9 +466,9 @@ void inet_csk_reqsk_queue_prune(struct sock *parent,
reqp=&lopt->syn_table[i];
while ((req = *reqp) != NULL) {
if (time_after_eq(now, req->expires)) {
- if ((req->retrans < (inet_rsk(req)->acked ? max_retries : thresh)) &&
- (inet_rsk(req)->acked ||
- !req->rsk_ops->rtx_syn_ack(parent, req))) {
+ if ((req->retrans < thresh ||
+ (inet_rsk(req)->acked && req->retrans < max_retries))
+ && !req->rsk_ops->rtx_syn_ack(parent, req)) {
unsigned long timeo;
if (req->retrans++ == 0)
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 04578593e100..d2a887fc8d9b 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -556,7 +556,6 @@ static void nf_nat_cleanup_conntrack(struct nf_conn *ct)
spin_lock_bh(&nf_nat_lock);
hlist_del_rcu(&nat->bysource);
- nat->ct = NULL;
spin_unlock_bh(&nf_nat_lock);
}
@@ -570,8 +569,8 @@ static void nf_nat_move_storage(void *new, void *old)
return;
spin_lock_bh(&nf_nat_lock);
- hlist_replace_rcu(&old_nat->bysource, &new_nat->bysource);
new_nat->ct = ct;
+ hlist_replace_rcu(&old_nat->bysource, &new_nat->bysource);
spin_unlock_bh(&nf_nat_lock);
}
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index e7e091d365ff..37a1ecd9d600 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -934,7 +934,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
srcp = inet->num;
seq_printf(seq, "%4d: %08X:%04X %08X:%04X"
- " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d",
+ " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
i, src, srcp, dest, destp, sp->sk_state,
atomic_read(&sp->sk_wmem_alloc),
atomic_read(&sp->sk_rmem_alloc),
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 97a230026e13..12695be2c255 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -85,10 +85,6 @@
int sysctl_tcp_tw_reuse __read_mostly;
int sysctl_tcp_low_latency __read_mostly;
-/* Check TCP sequence numbers in ICMP packets. */
-#define ICMP_MIN_LENGTH 8
-
-void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb);
#ifdef CONFIG_TCP_MD5SIG
static struct tcp_md5sig_key *tcp_v4_md5_do_lookup(struct sock *sk,
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index 584e6d74e3a9..7135279f3f84 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -52,7 +52,7 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
IP_ECN_clear(top_iph);
top_iph->frag_off = (flags & XFRM_STATE_NOPMTUDISC) ?
- 0 : XFRM_MODE_SKB_CB(skb)->frag_off;
+ 0 : (XFRM_MODE_SKB_CB(skb)->frag_off & htons(IP_DF));
ip_select_ident(top_iph, dst->child, NULL);
top_iph->ttl = dst_metric(dst->child, RTAX_HOPLIMIT);
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 4e5c8615832c..17eb48b8e329 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -102,6 +102,15 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
if (hdr->version != 6)
goto err;
+ /*
+ * RFC4291 2.5.3
+ * A packet received on an interface with a destination address
+ * of loopback must be dropped.
+ */
+ if (!(dev->flags & IFF_LOOPBACK) &&
+ ipv6_addr_loopback(&hdr->daddr))
+ goto err;
+
skb->transport_header = skb->network_header + sizeof(*hdr);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index c042ce19bd14..86e28a75267f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -345,18 +345,21 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
case IPV6_DSTOPTS:
{
struct ipv6_txoptions *opt;
+
+ /* remove any sticky options header with a zero option
+ * length, per RFC3542.
+ */
if (optlen == 0)
optval = NULL;
+ else if (optlen < sizeof(struct ipv6_opt_hdr) ||
+ optlen & 0x7 || optlen > 8 * 255)
+ goto e_inval;
/* hop-by-hop / destination options are privileged option */
retv = -EPERM;
if (optname != IPV6_RTHDR && !capable(CAP_NET_RAW))
break;
- if (optlen < sizeof(struct ipv6_opt_hdr) ||
- optlen & 0x7 || optlen > 8 * 255)
- goto e_inval;
-
opt = ipv6_renew_options(sk, np->opt, optname,
(struct ipv6_opt_hdr __user *)optval,
optlen);
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 3de6ffdaedf2..32e871a6c25a 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -222,15 +222,18 @@ __ipip6_tunnel_locate_prl(struct ip_tunnel *t, __be32 addr)
}
-static int ipip6_tunnel_get_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
+static int ipip6_tunnel_get_prl(struct ip_tunnel *t,
+ struct ip_tunnel_prl __user *a)
{
- struct ip_tunnel_prl *kp;
+ struct ip_tunnel_prl kprl, *kp;
struct ip_tunnel_prl_entry *prl;
unsigned int cmax, c = 0, ca, len;
int ret = 0;
- cmax = a->datalen / sizeof(*a);
- if (cmax > 1 && a->addr != htonl(INADDR_ANY))
+ if (copy_from_user(&kprl, a, sizeof(kprl)))
+ return -EFAULT;
+ cmax = kprl.datalen / sizeof(kprl);
+ if (cmax > 1 && kprl.addr != htonl(INADDR_ANY))
cmax = 1;
/* For simple GET or for root users,
@@ -261,26 +264,25 @@ static int ipip6_tunnel_get_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
for (prl = t->prl; prl; prl = prl->next) {
if (c > cmax)
break;
- if (a->addr != htonl(INADDR_ANY) && prl->addr != a->addr)
+ if (kprl.addr != htonl(INADDR_ANY) && prl->addr != kprl.addr)
continue;
kp[c].addr = prl->addr;
kp[c].flags = prl->flags;
c++;
- if (a->addr != htonl(INADDR_ANY))
+ if (kprl.addr != htonl(INADDR_ANY))
break;
}
out:
read_unlock(&ipip6_lock);
len = sizeof(*kp) * c;
- ret = len ? copy_to_user(a->data, kp, len) : 0;
+ ret = 0;
+ if ((len && copy_to_user(a + 1, kp, len)) || put_user(len, &a->datalen))
+ ret = -EFAULT;
kfree(kp);
- if (ret)
- return -EFAULT;
- a->datalen = len;
- return 0;
+ return ret;
}
static int
@@ -873,11 +875,20 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
break;
case SIOCGETPRL:
+ err = -EINVAL;
+ if (dev == sitn->fb_tunnel_dev)
+ goto done;
+ err = -ENOENT;
+ if (!(t = netdev_priv(dev)))
+ goto done;
+ err = ipip6_tunnel_get_prl(t, ifr->ifr_ifru.ifru_data);
+ break;
+
case SIOCADDPRL:
case SIOCDELPRL:
case SIOCCHGPRL:
err = -EPERM;
- if (cmd != SIOCGETPRL && !capable(CAP_NET_ADMIN))
+ if (!capable(CAP_NET_ADMIN))
goto done;
err = -EINVAL;
if (dev == sitn->fb_tunnel_dev)
@@ -890,12 +901,6 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
goto done;
switch (cmd) {
- case SIOCGETPRL:
- err = ipip6_tunnel_get_prl(t, &prl);
- if (!err && copy_to_user(ifr->ifr_ifru.ifru_data,
- &prl, sizeof(prl)))
- err = -EFAULT;
- break;
case SIOCDELPRL:
err = ipip6_tunnel_del_prl(t, &prl);
break;
@@ -904,8 +909,7 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
err = ipip6_tunnel_add_prl(t, &prl, cmd == SIOCCHGPRL);
break;
}
- if (cmd != SIOCGETPRL)
- netdev_state_change(dev);
+ netdev_state_change(dev);
break;
default:
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 1d7dd54aacef..c80d5899f279 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1132,7 +1132,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
ieee80211_tx_handler *handler;
struct ieee80211_tx_data tx;
ieee80211_tx_result res = TX_DROP, res_prepare;
- int ret, i;
+ int ret, i, retries = 0;
WARN_ON(__ieee80211_queue_pending(local, control->queue));
@@ -1216,6 +1216,13 @@ retry:
if (!__ieee80211_queue_stopped(local, control->queue)) {
clear_bit(IEEE80211_LINK_STATE_PENDING,
&local->state[control->queue]);
+ retries++;
+ /*
+ * Driver bug, it's rejecting packets but
+ * not stopping queues.
+ */
+ if (WARN_ON_ONCE(retries > 5))
+ goto drop;
goto retry;
}
memcpy(&store->control, control,
@@ -1562,13 +1569,13 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
* be cloned. This could happen, e.g., with Linux bridge code passing
* us broadcast frames. */
- if (head_need > 0 || skb_header_cloned(skb)) {
+ if (head_need > 0 || skb_cloned(skb)) {
#if 0
printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes "
"of headroom\n", dev->name, head_need);
#endif
- if (skb_header_cloned(skb))
+ if (skb_cloned(skb))
I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
else
I802_DEBUG_INC(local->tx_expand_skb_head);
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index a8bb8e31b1ec..6106cb79060c 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -496,7 +496,8 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- if (sdata->u.sta.state == IEEE80211_ASSOCIATED) {
+ if (sdata->u.sta.state == IEEE80211_ASSOCIATED ||
+ sdata->u.sta.state == IEEE80211_IBSS_JOINED) {
ap_addr->sa_family = ARPHRD_ETHER;
memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
return 0;
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index dc1598b86004..635b996c8c35 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -673,7 +673,7 @@ int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
#ifdef CONFIG_MAC80211_HT_DEBUG
if (net_ratelimit())
printk(KERN_DEBUG "allocated aggregation queue"
- " %d tid %d addr %s pool=0x%lX",
+ " %d tid %d addr %s pool=0x%lX\n",
i, tid, print_mac(mac, sta->addr),
q->qdisc_pool[0]);
#endif /* CONFIG_MAC80211_HT_DEBUG */
diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c
index bcc19fa4ed1e..8a3f8b34e466 100644
--- a/net/netfilter/nf_conntrack_extend.c
+++ b/net/netfilter/nf_conntrack_extend.c
@@ -59,12 +59,19 @@ nf_ct_ext_create(struct nf_ct_ext **ext, enum nf_ct_ext_id id, gfp_t gfp)
if (!*ext)
return NULL;
+ INIT_RCU_HEAD(&(*ext)->rcu);
(*ext)->offset[id] = off;
(*ext)->len = len;
return (void *)(*ext) + off;
}
+static void __nf_ct_ext_free_rcu(struct rcu_head *head)
+{
+ struct nf_ct_ext *ext = container_of(head, struct nf_ct_ext, rcu);
+ kfree(ext);
+}
+
void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
{
struct nf_ct_ext *new;
@@ -106,7 +113,7 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
(void *)ct->ext + ct->ext->offset[i]);
rcu_read_unlock();
}
- kfree(ct->ext);
+ call_rcu(&ct->ext->rcu, __nf_ct_ext_free_rcu);
ct->ext = new;
}
diff --git a/net/netfilter/nf_conntrack_h323_main.c b/net/netfilter/nf_conntrack_h323_main.c
index 95da1a24aab7..2f83c158934d 100644
--- a/net/netfilter/nf_conntrack_h323_main.c
+++ b/net/netfilter/nf_conntrack_h323_main.c
@@ -619,6 +619,7 @@ static const struct nf_conntrack_expect_policy h245_exp_policy = {
static struct nf_conntrack_helper nf_conntrack_helper_h245 __read_mostly = {
.name = "H.245",
.me = THIS_MODULE,
+ .tuple.src.l3num = AF_UNSPEC,
.tuple.dst.protonum = IPPROTO_UDP,
.help = h245_help,
.expect_policy = &h245_exp_policy,
@@ -1765,6 +1766,7 @@ static void __exit nf_conntrack_h323_fini(void)
nf_conntrack_helper_unregister(&nf_conntrack_helper_ras[0]);
nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[1]);
nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[0]);
+ nf_conntrack_helper_unregister(&nf_conntrack_helper_h245);
kfree(h323_buffer);
pr_debug("nf_ct_h323: fini\n");
}
@@ -1777,28 +1779,34 @@ static int __init nf_conntrack_h323_init(void)
h323_buffer = kmalloc(65536, GFP_KERNEL);
if (!h323_buffer)
return -ENOMEM;
- ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[0]);
+ ret = nf_conntrack_helper_register(&nf_conntrack_helper_h245);
if (ret < 0)
goto err1;
- ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[1]);
+ ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[0]);
if (ret < 0)
goto err2;
- ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[0]);
+ ret = nf_conntrack_helper_register(&nf_conntrack_helper_q931[1]);
if (ret < 0)
goto err3;
- ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[1]);
+ ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[0]);
if (ret < 0)
goto err4;
+ ret = nf_conntrack_helper_register(&nf_conntrack_helper_ras[1]);
+ if (ret < 0)
+ goto err5;
pr_debug("nf_ct_h323: init success\n");
return 0;
-err4:
+err5:
nf_conntrack_helper_unregister(&nf_conntrack_helper_ras[0]);
-err3:
+err4:
nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[1]);
-err2:
+err3:
nf_conntrack_helper_unregister(&nf_conntrack_helper_q931[0]);
+err2:
+ nf_conntrack_helper_unregister(&nf_conntrack_helper_h245);
err1:
+ kfree(h323_buffer);
return ret;
}
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f5aa23c3e886..3e1191cecaf0 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -444,8 +444,11 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
if (ops->dumpit == NULL)
return -EOPNOTSUPP;
- return netlink_dump_start(genl_sock, skb, nlh,
- ops->dumpit, ops->done);
+ genl_unlock();
+ err = netlink_dump_start(genl_sock, skb, nlh,
+ ops->dumpit, ops->done);
+ genl_lock();
+ return err;
}
if (ops->doit == NULL)
@@ -603,9 +606,6 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
int chains_to_skip = cb->args[0];
int fams_to_skip = cb->args[1];
- if (chains_to_skip != 0)
- genl_lock();
-
for (i = 0; i < GENL_FAM_TAB_SIZE; i++) {
if (i < chains_to_skip)
continue;
@@ -623,9 +623,6 @@ static int ctrl_dumpfamily(struct sk_buff *skb, struct netlink_callback *cb)
}
errout:
- if (chains_to_skip != 0)
- genl_unlock();
-
cb->args[0] = i;
cb->args[1] = n;
@@ -770,7 +767,7 @@ static int __init genl_init(void)
/* we'll bump the group number right afterwards */
genl_sock = netlink_kernel_create(&init_net, NETLINK_GENERIC, 0,
- genl_rcv, NULL, THIS_MODULE);
+ genl_rcv, &genl_mutex, THIS_MODULE);
if (genl_sock == NULL)
panic("GENL: Cannot initialize generic netlink\n");
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 5bc1ed490180..6807c97985a5 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -28,6 +28,7 @@
* $Id: sch_htb.c,v 1.25 2003/12/07 11:08:25 devik Exp devik $
*/
#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
@@ -53,13 +54,17 @@
*/
#define HTB_HSIZE 16 /* classid hash size */
-#define HTB_HYSTERESIS 1 /* whether to use mode hysteresis for speedup */
+static int htb_hysteresis __read_mostly = 0; /* whether to use mode hysteresis for speedup */
#define HTB_VER 0x30011 /* major must be matched with number suplied by TC as version */
#if HTB_VER >> 16 != TC_HTB_PROTOVER
#error "Mismatched sch_htb.c and pkt_sch.h"
#endif
+/* Module parameter and sysfs export */
+module_param (htb_hysteresis, int, 0640);
+MODULE_PARM_DESC(htb_hysteresis, "Hysteresis mode, less CPU load, less accurate");
+
/* used internaly to keep status of single class */
enum htb_cmode {
HTB_CANT_SEND, /* class can't send and can't borrow */
@@ -462,19 +467,21 @@ static void htb_deactivate_prios(struct htb_sched *q, struct htb_class *cl)
htb_remove_class_from_row(q, cl, mask);
}
-#if HTB_HYSTERESIS
static inline long htb_lowater(const struct htb_class *cl)
{
- return cl->cmode != HTB_CANT_SEND ? -cl->cbuffer : 0;
+ if (htb_hysteresis)
+ return cl->cmode != HTB_CANT_SEND ? -cl->cbuffer : 0;
+ else
+ return 0;
}
static inline long htb_hiwater(const struct htb_class *cl)
{
- return cl->cmode == HTB_CAN_SEND ? -cl->buffer : 0;
+ if (htb_hysteresis)
+ return cl->cmode == HTB_CAN_SEND ? -cl->buffer : 0;
+ else
+ return 0;
}
-#else
-#define htb_lowater(cl) (0)
-#define htb_hiwater(cl) (0)
-#endif
+
/**
* htb_class_mode - computes and returns current class mode
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 532634861db1..024c3ebd9661 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -474,6 +474,15 @@ static void sctp_association_destroy(struct sctp_association *asoc)
void sctp_assoc_set_primary(struct sctp_association *asoc,
struct sctp_transport *transport)
{
+ int changeover = 0;
+
+ /* it's a changeover only if we already have a primary path
+ * that we are changing
+ */
+ if (asoc->peer.primary_path != NULL &&
+ asoc->peer.primary_path != transport)
+ changeover = 1 ;
+
asoc->peer.primary_path = transport;
/* Set a default msg_name for events. */
@@ -499,12 +508,12 @@ void sctp_assoc_set_primary(struct sctp_association *asoc,
* double switch to the same destination address.
*/
if (transport->cacc.changeover_active)
- transport->cacc.cycling_changeover = 1;
+ transport->cacc.cycling_changeover = changeover;
/* 2) The sender MUST set CHANGEOVER_ACTIVE to indicate that
* a changeover has occurred.
*/
- transport->cacc.changeover_active = 1;
+ transport->cacc.changeover_active = changeover;
/* 3) The sender MUST store the next TSN to be sent in
* next_tsn_at_change.
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index b435a193c5df..9258dfe784ae 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -108,14 +108,23 @@ static __init int sctp_proc_init(void)
}
if (sctp_snmp_proc_init())
- goto out_nomem;
+ goto out_snmp_proc_init;
if (sctp_eps_proc_init())
- goto out_nomem;
+ goto out_eps_proc_init;
if (sctp_assocs_proc_init())
- goto out_nomem;
+ goto out_assocs_proc_init;
return 0;
+out_assocs_proc_init:
+ sctp_eps_proc_exit();
+out_eps_proc_init:
+ sctp_snmp_proc_exit();
+out_snmp_proc_init:
+ if (proc_net_sctp) {
+ proc_net_sctp = NULL;
+ remove_proc_entry("sctp", init_net.proc_net);
+ }
out_nomem:
return -ENOMEM;
}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e7e3baf7009e..0dbcde6758ea 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4401,7 +4401,9 @@ static int sctp_getsockopt_local_addrs_old(struct sock *sk, int len,
if (copy_from_user(&getaddrs, optval, len))
return -EFAULT;
- if (getaddrs.addr_num <= 0) return -EINVAL;
+ if (getaddrs.addr_num <= 0 ||
+ getaddrs.addr_num >= (INT_MAX / sizeof(union sctp_addr)))
+ return -EINVAL;
/*
* For UDP-style sockets, id specifies the association to query.
* If the id field is set to the value '0' then the locally bound
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index e18cd3628db4..657835f227d3 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -169,6 +169,11 @@ static inline int unix_may_send(struct sock *sk, struct sock *osk)
return (unix_peer(osk) == NULL || unix_our_peer(sk, osk));
}
+static inline int unix_recvq_full(struct sock const *sk)
+{
+ return skb_queue_len(&sk->sk_receive_queue) > sk->sk_max_ack_backlog;
+}
+
static struct sock *unix_peer_get(struct sock *s)
{
struct sock *peer;
@@ -482,6 +487,8 @@ static int unix_socketpair(struct socket *, struct socket *);
static int unix_accept(struct socket *, struct socket *, int);
static int unix_getname(struct socket *, struct sockaddr *, int *, int);
static unsigned int unix_poll(struct file *, struct socket *, poll_table *);
+static unsigned int unix_datagram_poll(struct file *, struct socket *,
+ poll_table *);
static int unix_ioctl(struct socket *, unsigned int, unsigned long);
static int unix_shutdown(struct socket *, int);
static int unix_stream_sendmsg(struct kiocb *, struct socket *,
@@ -527,7 +534,7 @@ static const struct proto_ops unix_dgram_ops = {
.socketpair = unix_socketpair,
.accept = sock_no_accept,
.getname = unix_getname,
- .poll = datagram_poll,
+ .poll = unix_datagram_poll,
.ioctl = unix_ioctl,
.listen = sock_no_listen,
.shutdown = unix_shutdown,
@@ -548,7 +555,7 @@ static const struct proto_ops unix_seqpacket_ops = {
.socketpair = unix_socketpair,
.accept = unix_accept,
.getname = unix_getname,
- .poll = datagram_poll,
+ .poll = unix_datagram_poll,
.ioctl = unix_ioctl,
.listen = unix_listen,
.shutdown = unix_shutdown,
@@ -983,8 +990,7 @@ static long unix_wait_for_peer(struct sock *other, long timeo)
sched = !sock_flag(other, SOCK_DEAD) &&
!(other->sk_shutdown & RCV_SHUTDOWN) &&
- (skb_queue_len(&other->sk_receive_queue) >
- other->sk_max_ack_backlog);
+ unix_recvq_full(other);
unix_state_unlock(other);
@@ -1058,8 +1064,7 @@ restart:
if (other->sk_state != TCP_LISTEN)
goto out_unlock;
- if (skb_queue_len(&other->sk_receive_queue) >
- other->sk_max_ack_backlog) {
+ if (unix_recvq_full(other)) {
err = -EAGAIN;
if (!timeo)
goto out_unlock;
@@ -1428,9 +1433,7 @@ restart:
goto out_unlock;
}
- if (unix_peer(other) != sk &&
- (skb_queue_len(&other->sk_receive_queue) >
- other->sk_max_ack_backlog)) {
+ if (unix_peer(other) != sk && unix_recvq_full(other)) {
if (!timeo) {
err = -EAGAIN;
goto out_unlock;
@@ -1991,6 +1994,64 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl
return mask;
}
+static unsigned int unix_datagram_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
+{
+ struct sock *sk = sock->sk, *peer;
+ unsigned int mask;
+
+ poll_wait(file, sk->sk_sleep, wait);
+
+ peer = unix_peer_get(sk);
+ if (peer) {
+ if (peer != sk) {
+ /*
+ * Writability of a connected socket additionally
+ * depends on the state of the receive queue of the
+ * peer.
+ */
+ poll_wait(file, &unix_sk(peer)->peer_wait, wait);
+ } else {
+ sock_put(peer);
+ peer = NULL;
+ }
+ }
+
+ mask = 0;
+
+ /* exceptional events? */
+ if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
+ mask |= POLLERR;
+ if (sk->sk_shutdown & RCV_SHUTDOWN)
+ mask |= POLLRDHUP;
+ if (sk->sk_shutdown == SHUTDOWN_MASK)
+ mask |= POLLHUP;
+
+ /* readable? */
+ if (!skb_queue_empty(&sk->sk_receive_queue) ||
+ (sk->sk_shutdown & RCV_SHUTDOWN))
+ mask |= POLLIN | POLLRDNORM;
+
+ /* Connection-based need to check for termination and startup */
+ if (sk->sk_type == SOCK_SEQPACKET) {
+ if (sk->sk_state == TCP_CLOSE)
+ mask |= POLLHUP;
+ /* connection hasn't started yet? */
+ if (sk->sk_state == TCP_SYN_SENT)
+ return mask;
+ }
+
+ /* writable? */
+ if (unix_writable(sk) && !(peer && unix_recvq_full(peer)))
+ mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
+ else
+ set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
+
+ if (peer)
+ sock_put(peer);
+
+ return mask;
+}
#ifdef CONFIG_PROC_FS
static struct sock *first_unix_socket(int *i)
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-28 15:59:38 +0000