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-rw-r--r--net/8021q/vlan_core.c14
-rw-r--r--net/9p/trans_virtio.c3
-rw-r--r--net/core/iovec.c5
-rw-r--r--net/core/stream.c8
-rw-r--r--net/ipv4/Kconfig4
-rw-r--r--net/ipv4/igmp.c14
-rw-r--r--net/ipv4/route.c2
-rw-r--r--net/ipv4/tcp.c2
-rw-r--r--net/ipv4/tcp_input.c3
-rw-r--r--net/ipv4/tcp_timer.c25
-rw-r--r--net/ipv6/route.c30
-rw-r--r--net/phonet/pep.c3
-rw-r--r--net/sctp/auth.c8
-rw-r--r--net/sctp/socket.c13
14 files changed, 97 insertions, 37 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 0eb486d342d..b6d55a9304f 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -24,8 +24,11 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp,
if (vlan_dev)
skb->dev = vlan_dev;
- else if (vlan_id)
- goto drop;
+ else if (vlan_id) {
+ if (!(skb->dev->flags & IFF_PROMISC))
+ goto drop;
+ skb->pkt_type = PACKET_OTHERHOST;
+ }
return polling ? netif_receive_skb(skb) : netif_rx(skb);
@@ -101,8 +104,11 @@ vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
if (vlan_dev)
skb->dev = vlan_dev;
- else if (vlan_id)
- goto drop;
+ else if (vlan_id) {
+ if (!(skb->dev->flags & IFF_PROMISC))
+ goto drop;
+ skb->pkt_type = PACKET_OTHERHOST;
+ }
for (p = napi->gro_list; p; p = p->next) {
unsigned long diffs;
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index dcfbe99ff81..b88515936e4 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -329,7 +329,8 @@ p9_virtio_create(struct p9_client *client, const char *devname, char *args)
mutex_lock(&virtio_9p_lock);
list_for_each_entry(chan, &virtio_chan_list, chan_list) {
- if (!strncmp(devname, chan->tag, chan->tag_len)) {
+ if (!strncmp(devname, chan->tag, chan->tag_len) &&
+ strlen(devname) == chan->tag_len) {
if (!chan->inuse) {
chan->inuse = true;
found = 1;
diff --git a/net/core/iovec.c b/net/core/iovec.c
index f4657c2127b..72aceb1fe4f 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -35,9 +35,10 @@
* in any case.
*/
-int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode)
+long verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr *address, int mode)
{
- int size, err, ct;
+ int size, ct;
+ long err;
if (m->msg_namelen) {
if (mode == VERIFY_READ) {
diff --git a/net/core/stream.c b/net/core/stream.c
index d959e0f4152..f5df85dcd20 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -141,10 +141,10 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
set_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
sk->sk_write_pending++;
- sk_wait_event(sk, &current_timeo, !sk->sk_err &&
- !(sk->sk_shutdown & SEND_SHUTDOWN) &&
- sk_stream_memory_free(sk) &&
- vm_wait);
+ sk_wait_event(sk, &current_timeo, sk->sk_err ||
+ (sk->sk_shutdown & SEND_SHUTDOWN) ||
+ (sk_stream_memory_free(sk) &&
+ !vm_wait));
sk->sk_write_pending--;
if (vm_wait) {
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 5462e2d147a..e848e6c062c 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -223,7 +223,7 @@ config NET_IPGRE_DEMUX
config NET_IPGRE
tristate "IP: GRE tunnels over IP"
- depends on NET_IPGRE_DEMUX
+ depends on (IPV6 || IPV6=n) && NET_IPGRE_DEMUX
help
Tunneling means encapsulating data of one protocol type within
another protocol and sending it over a channel that understands the
@@ -419,7 +419,7 @@ config INET_XFRM_MODE_BEET
If unsure, say Y.
config INET_LRO
- bool "Large Receive Offload (ipv4/tcp)"
+ tristate "Large Receive Offload (ipv4/tcp)"
default y
---help---
Support for Large Receive Offload (ipv4/tcp).
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 1fdcacd36ce..2a4bb76f213 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -834,7 +834,7 @@ static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
int mark = 0;
- if (len == 8 || IGMP_V2_SEEN(in_dev)) {
+ if (len == 8) {
if (ih->code == 0) {
/* Alas, old v1 router presents here. */
@@ -856,6 +856,18 @@ static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
igmpv3_clear_delrec(in_dev);
} else if (len < 12) {
return; /* ignore bogus packet; freed by caller */
+ } else if (IGMP_V1_SEEN(in_dev)) {
+ /* This is a v3 query with v1 queriers present */
+ max_delay = IGMP_Query_Response_Interval;
+ group = 0;
+ } else if (IGMP_V2_SEEN(in_dev)) {
+ /* this is a v3 query with v2 queriers present;
+ * Interpretation of the max_delay code is problematic here.
+ * A real v2 host would use ih_code directly, while v3 has a
+ * different encoding. We use the v3 encoding as more likely
+ * to be intended in a v3 query.
+ */
+ max_delay = IGMPV3_MRC(ih3->code)*(HZ/IGMP_TIMER_SCALE);
} else { /* v3 */
if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)))
return;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index c3cb8bd2363..04e0df82b88 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1232,7 +1232,7 @@ restart:
}
if (net_ratelimit())
- printk(KERN_WARNING "Neighbour table overflow.\n");
+ printk(KERN_WARNING "ipv4: Neighbour table overflow.\n");
rt_drop(rt);
return -ENOBUFS;
}
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 19192c5fe67..1664a0590bb 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -943,7 +943,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
sg = sk->sk_route_caps & NETIF_F_SG;
while (--iovlen >= 0) {
- int seglen = iov->iov_len;
+ size_t seglen = iov->iov_len;
unsigned char __user *from = iov->iov_base;
iov++;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index eaf20e7e61d..f6fdd727a23 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2532,7 +2532,8 @@ static void tcp_mark_head_lost(struct sock *sk, int packets)
cnt += tcp_skb_pcount(skb);
if (cnt > packets) {
- if (tcp_is_sack(tp) || (oldcnt >= packets))
+ if ((tcp_is_sack(tp) && !tcp_is_fack(tp)) ||
+ (oldcnt >= packets))
break;
mss = skb_shinfo(skb)->gso_size;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index baea4a12902..f3c8c6c019a 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -135,13 +135,16 @@ static void tcp_mtu_probing(struct inet_connection_sock *icsk, struct sock *sk)
/* This function calculates a "timeout" which is equivalent to the timeout of a
* TCP connection after "boundary" unsuccessful, exponentially backed-off
- * retransmissions with an initial RTO of TCP_RTO_MIN.
+ * retransmissions with an initial RTO of TCP_RTO_MIN or TCP_TIMEOUT_INIT if
+ * syn_set flag is set.
*/
static bool retransmits_timed_out(struct sock *sk,
unsigned int boundary,
- unsigned int timeout)
+ unsigned int timeout,
+ bool syn_set)
{
unsigned int linear_backoff_thresh, start_ts;
+ unsigned int rto_base = syn_set ? TCP_TIMEOUT_INIT : TCP_RTO_MIN;
if (!inet_csk(sk)->icsk_retransmits)
return false;
@@ -152,12 +155,12 @@ static bool retransmits_timed_out(struct sock *sk,
start_ts = tcp_sk(sk)->retrans_stamp;
if (likely(timeout == 0)) {
- linear_backoff_thresh = ilog2(TCP_RTO_MAX/TCP_RTO_MIN);
+ linear_backoff_thresh = ilog2(TCP_RTO_MAX/rto_base);
if (boundary <= linear_backoff_thresh)
- timeout = ((2 << boundary) - 1) * TCP_RTO_MIN;
+ timeout = ((2 << boundary) - 1) * rto_base;
else
- timeout = ((2 << linear_backoff_thresh) - 1) * TCP_RTO_MIN +
+ timeout = ((2 << linear_backoff_thresh) - 1) * rto_base +
(boundary - linear_backoff_thresh) * TCP_RTO_MAX;
}
return (tcp_time_stamp - start_ts) >= timeout;
@@ -168,14 +171,15 @@ static int tcp_write_timeout(struct sock *sk)
{
struct inet_connection_sock *icsk = inet_csk(sk);
int retry_until;
- bool do_reset;
+ bool do_reset, syn_set = 0;
if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) {
if (icsk->icsk_retransmits)
dst_negative_advice(sk);
retry_until = icsk->icsk_syn_retries ? : sysctl_tcp_syn_retries;
+ syn_set = 1;
} else {
- if (retransmits_timed_out(sk, sysctl_tcp_retries1, 0)) {
+ if (retransmits_timed_out(sk, sysctl_tcp_retries1, 0, 0)) {
/* Black hole detection */
tcp_mtu_probing(icsk, sk);
@@ -188,7 +192,7 @@ static int tcp_write_timeout(struct sock *sk)
retry_until = tcp_orphan_retries(sk, alive);
do_reset = alive ||
- !retransmits_timed_out(sk, retry_until, 0);
+ !retransmits_timed_out(sk, retry_until, 0, 0);
if (tcp_out_of_resources(sk, do_reset))
return 1;
@@ -196,8 +200,7 @@ static int tcp_write_timeout(struct sock *sk)
}
if (retransmits_timed_out(sk, retry_until,
- (1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV) ? 0 :
- icsk->icsk_user_timeout)) {
+ syn_set ? 0 : icsk->icsk_user_timeout, syn_set)) {
/* Has it gone just too far? */
tcp_write_err(sk);
return 1;
@@ -439,7 +442,7 @@ out_reset_timer:
icsk->icsk_rto = min(icsk->icsk_rto << 1, TCP_RTO_MAX);
}
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS, icsk->icsk_rto, TCP_RTO_MAX);
- if (retransmits_timed_out(sk, sysctl_tcp_retries1 + 1, 0))
+ if (retransmits_timed_out(sk, sysctl_tcp_retries1 + 1, 0, 0))
__sk_dst_reset(sk);
out:;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 25476e7e708..17e21793388 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -670,7 +670,7 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *dad
if (net_ratelimit())
printk(KERN_WARNING
- "Neighbour table overflow.\n");
+ "ipv6: Neighbour table overflow.\n");
dst_free(&rt->dst);
return NULL;
}
@@ -1559,14 +1559,13 @@ out:
* i.e. Path MTU discovery
*/
-void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
- struct net_device *dev, u32 pmtu)
+static void rt6_do_pmtu_disc(struct in6_addr *daddr, struct in6_addr *saddr,
+ struct net *net, u32 pmtu, int ifindex)
{
struct rt6_info *rt, *nrt;
- struct net *net = dev_net(dev);
int allfrag = 0;
- rt = rt6_lookup(net, daddr, saddr, dev->ifindex, 0);
+ rt = rt6_lookup(net, daddr, saddr, ifindex, 0);
if (rt == NULL)
return;
@@ -1634,6 +1633,27 @@ out:
dst_release(&rt->dst);
}
+void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
+ struct net_device *dev, u32 pmtu)
+{
+ struct net *net = dev_net(dev);
+
+ /*
+ * RFC 1981 states that a node "MUST reduce the size of the packets it
+ * is sending along the path" that caused the Packet Too Big message.
+ * Since it's not possible in the general case to determine which
+ * interface was used to send the original packet, we update the MTU
+ * on the interface that will be used to send future packets. We also
+ * update the MTU on the interface that received the Packet Too Big in
+ * case the original packet was forced out that interface with
+ * SO_BINDTODEVICE or similar. This is the next best thing to the
+ * correct behaviour, which would be to update the MTU on all
+ * interfaces.
+ */
+ rt6_do_pmtu_disc(daddr, saddr, net, pmtu, 0);
+ rt6_do_pmtu_disc(daddr, saddr, net, pmtu, dev->ifindex);
+}
+
/*
* Misc support functions
*/
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 552fb665645..aa3d8700d21 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -507,12 +507,13 @@ static void pipe_grant_credits(struct sock *sk)
static int pipe_rcv_status(struct sock *sk, struct sk_buff *skb)
{
struct pep_sock *pn = pep_sk(sk);
- struct pnpipehdr *hdr = pnp_hdr(skb);
+ struct pnpipehdr *hdr;
int wake = 0;
if (!pskb_may_pull(skb, sizeof(*hdr) + 4))
return -EINVAL;
+ hdr = pnp_hdr(skb);
if (hdr->data[0] != PN_PEP_TYPE_COMMON) {
LIMIT_NETDEBUG(KERN_DEBUG"Phonet unknown PEP type: %u\n",
(unsigned)hdr->data[0]);
diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 86366390038..ddbbf7c81fa 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -543,16 +543,20 @@ struct sctp_hmac *sctp_auth_asoc_get_hmac(const struct sctp_association *asoc)
id = ntohs(hmacs->hmac_ids[i]);
/* Check the id is in the supported range */
- if (id > SCTP_AUTH_HMAC_ID_MAX)
+ if (id > SCTP_AUTH_HMAC_ID_MAX) {
+ id = 0;
continue;
+ }
/* See is we support the id. Supported IDs have name and
* length fields set, so that we can allocated and use
* them. We can safely just check for name, for without the
* name, we can't allocate the TFM.
*/
- if (!sctp_hmac_list[id].hmac_name)
+ if (!sctp_hmac_list[id].hmac_name) {
+ id = 0;
continue;
+ }
break;
}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index d4bf2a78cb8..e34ca9cc116 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -918,6 +918,11 @@ SCTP_STATIC int sctp_setsockopt_bindx(struct sock* sk,
/* Walk through the addrs buffer and count the number of addresses. */
addr_buf = kaddrs;
while (walk_size < addrs_size) {
+ if (walk_size + sizeof(sa_family_t) > addrs_size) {
+ kfree(kaddrs);
+ return -EINVAL;
+ }
+
sa_addr = (struct sockaddr *)addr_buf;
af = sctp_get_af_specific(sa_addr->sa_family);
@@ -1004,9 +1009,13 @@ static int __sctp_connect(struct sock* sk,
/* Walk through the addrs buffer and count the number of addresses. */
addr_buf = kaddrs;
while (walk_size < addrs_size) {
+ if (walk_size + sizeof(sa_family_t) > addrs_size) {
+ err = -EINVAL;
+ goto out_free;
+ }
+
sa_addr = (union sctp_addr *)addr_buf;
af = sctp_get_af_specific(sa_addr->sa.sa_family);
- port = ntohs(sa_addr->v4.sin_port);
/* If the address family is not supported or if this address
* causes the address buffer to overflow return EINVAL.
@@ -1016,6 +1025,8 @@ static int __sctp_connect(struct sock* sk,
goto out_free;
}
+ port = ntohs(sa_addr->v4.sin_port);
+
/* Save current address so we can work with it */
memcpy(&to, sa_addr, af->sockaddr_len);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 05:42:25 +0000