aboutsummaryrefslogtreecommitdiff
path: root/net/ipv4
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/gre.c2
-rw-r--r--net/ipv4/ip_gre.c3
-rw-r--r--net/ipv4/ip_output.c2
-rw-r--r--net/ipv4/ip_tunnel.c6
-rw-r--r--net/ipv4/ip_vti.c3
-rw-r--r--net/ipv4/netfilter/ipt_ULOG.c31
-rw-r--r--net/ipv4/route.c7
-rw-r--r--net/ipv4/tcp.c29
-rw-r--r--net/ipv4/tcp_input.c23
-rw-r--r--net/ipv4/tcp_ipv4.c4
-rw-r--r--net/ipv4/tcp_output.c10
11 files changed, 81 insertions, 39 deletions
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
index b2e805af9b8..7856d1651d0 100644
--- a/net/ipv4/gre.c
+++ b/net/ipv4/gre.c
@@ -178,7 +178,7 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
err = __skb_linearize(skb);
if (err) {
- kfree_skb(segs);
+ kfree_skb_list(segs);
segs = ERR_PTR(err);
goto out;
}
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index c625e4dad4b..2a83591492d 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -235,7 +235,7 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
*/
struct net *net = dev_net(skb->dev);
struct ip_tunnel_net *itn;
- const struct iphdr *iph = (const struct iphdr *)skb->data;
+ const struct iphdr *iph;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
@@ -281,6 +281,7 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
else
itn = net_generic(net, ipgre_net_id);
+ iph = (const struct iphdr *)skb->data;
t = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi.flags,
iph->daddr, iph->saddr, tpi.key);
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 147abf5275a..4bcabf3ab4c 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -84,7 +84,7 @@ int sysctl_ip_default_ttl __read_mostly = IPDEFTTL;
EXPORT_SYMBOL(sysctl_ip_default_ttl);
/* Generate a checksum for an outgoing IP datagram. */
-__inline__ void ip_send_check(struct iphdr *iph)
+void ip_send_check(struct iphdr *iph)
{
iph->check = 0;
iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index e4147ec1665..7fa8f08fa7a 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -503,6 +503,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
inner_iph = (const struct iphdr *)skb_inner_network_header(skb);
+ memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
dst = tnl_params->daddr;
if (dst == 0) {
/* NBMA tunnel */
@@ -658,7 +659,6 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
skb_dst_drop(skb);
skb_dst_set(skb, &rt->dst);
- memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
/* Push down and install the IP header. */
skb_push(skb, sizeof(struct iphdr));
@@ -853,7 +853,7 @@ void ip_tunnel_dellink(struct net_device *dev, struct list_head *head)
}
EXPORT_SYMBOL_GPL(ip_tunnel_dellink);
-int __net_init ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
+int ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
struct rtnl_link_ops *ops, char *devname)
{
struct ip_tunnel_net *itn = net_generic(net, ip_tnl_net_id);
@@ -899,7 +899,7 @@ static void ip_tunnel_destroy(struct ip_tunnel_net *itn, struct list_head *head)
unregister_netdevice_queue(itn->fb_tunnel_dev, head);
}
-void __net_exit ip_tunnel_delete_net(struct ip_tunnel_net *itn)
+void ip_tunnel_delete_net(struct ip_tunnel_net *itn)
{
LIST_HEAD(list);
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 9d2bdb2c1d3..c118f6b576b 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -361,8 +361,7 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
tunnel->err_count = 0;
}
- IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
- IPSKB_REROUTED);
+ memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
skb_dst_drop(skb);
skb_dst_set(skb, &rt->dst);
nf_reset(skb);
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index f8a222cb644..32b0e978c8e 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -125,15 +125,16 @@ static void ulog_send(struct ulog_net *ulog, unsigned int nlgroupnum)
/* timer function to flush queue in flushtimeout time */
static void ulog_timer(unsigned long data)
{
+ unsigned int groupnum = *((unsigned int *)data);
struct ulog_net *ulog = container_of((void *)data,
struct ulog_net,
- nlgroup[*(unsigned int *)data]);
+ nlgroup[groupnum]);
pr_debug("timer function called, calling ulog_send\n");
/* lock to protect against somebody modifying our structure
* from ipt_ulog_target at the same time */
spin_lock_bh(&ulog->lock);
- ulog_send(ulog, data);
+ ulog_send(ulog, groupnum);
spin_unlock_bh(&ulog->lock);
}
@@ -162,7 +163,8 @@ static struct sk_buff *ulog_alloc_skb(unsigned int size)
return skb;
}
-static void ipt_ulog_packet(unsigned int hooknum,
+static void ipt_ulog_packet(struct net *net,
+ unsigned int hooknum,
const struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@@ -174,7 +176,6 @@ static void ipt_ulog_packet(unsigned int hooknum,
size_t size, copy_len;
struct nlmsghdr *nlh;
struct timeval tv;
- struct net *net = dev_net(in ? in : out);
struct ulog_net *ulog = ulog_pernet(net);
/* ffs == find first bit set, necessary because userspace
@@ -231,8 +232,10 @@ static void ipt_ulog_packet(unsigned int hooknum,
put_unaligned(tv.tv_usec, &pm->timestamp_usec);
put_unaligned(skb->mark, &pm->mark);
pm->hook = hooknum;
- if (prefix != NULL)
- strncpy(pm->prefix, prefix, sizeof(pm->prefix));
+ if (prefix != NULL) {
+ strncpy(pm->prefix, prefix, sizeof(pm->prefix) - 1);
+ pm->prefix[sizeof(pm->prefix) - 1] = '\0';
+ }
else if (loginfo->prefix[0] != '\0')
strncpy(pm->prefix, loginfo->prefix, sizeof(pm->prefix));
else
@@ -291,12 +294,15 @@ alloc_failure:
static unsigned int
ulog_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
- ipt_ulog_packet(par->hooknum, skb, par->in, par->out,
+ struct net *net = dev_net(par->in ? par->in : par->out);
+
+ ipt_ulog_packet(net, par->hooknum, skb, par->in, par->out,
par->targinfo, NULL);
return XT_CONTINUE;
}
-static void ipt_logfn(u_int8_t pf,
+static void ipt_logfn(struct net *net,
+ u_int8_t pf,
unsigned int hooknum,
const struct sk_buff *skb,
const struct net_device *in,
@@ -318,7 +324,7 @@ static void ipt_logfn(u_int8_t pf,
strlcpy(loginfo.prefix, prefix, sizeof(loginfo.prefix));
}
- ipt_ulog_packet(hooknum, skb, in, out, &loginfo, prefix);
+ ipt_ulog_packet(net, hooknum, skb, in, out, &loginfo, prefix);
}
static int ulog_tg_check(const struct xt_tgchk_param *par)
@@ -402,8 +408,11 @@ static int __net_init ulog_tg_net_init(struct net *net)
spin_lock_init(&ulog->lock);
/* initialize ulog_buffers */
- for (i = 0; i < ULOG_MAXNLGROUPS; i++)
- setup_timer(&ulog->ulog_buffers[i].timer, ulog_timer, i);
+ for (i = 0; i < ULOG_MAXNLGROUPS; i++) {
+ ulog->nlgroup[i] = i;
+ setup_timer(&ulog->ulog_buffers[i].timer, ulog_timer,
+ (unsigned long)&ulog->nlgroup[i]);
+ }
ulog->nflognl = netlink_kernel_create(net, NETLINK_NFLOG, &cfg);
if (!ulog->nflognl)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 550781a17b3..d35bbf0cf40 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -737,10 +737,15 @@ static void ip_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_buf
{
struct rtable *rt;
struct flowi4 fl4;
+ const struct iphdr *iph = (const struct iphdr *) skb->data;
+ int oif = skb->dev->ifindex;
+ u8 tos = RT_TOS(iph->tos);
+ u8 prot = iph->protocol;
+ u32 mark = skb->mark;
rt = (struct rtable *) dst;
- ip_rt_build_flow_key(&fl4, sk, skb);
+ __build_flow_key(&fl4, sk, iph, oif, tos, prot, mark, 0);
__ip_do_redirect(rt, skb, &fl4, true);
}
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index dcb116dde21..ab450c099aa 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2887,6 +2887,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
unsigned int mss;
struct sk_buff *gso_skb = skb;
__sum16 newcheck;
+ bool ooo_okay, copy_destructor;
if (!pskb_may_pull(skb, sizeof(*th)))
goto out;
@@ -2927,10 +2928,18 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
goto out;
}
+ copy_destructor = gso_skb->destructor == tcp_wfree;
+ ooo_okay = gso_skb->ooo_okay;
+ /* All segments but the first should have ooo_okay cleared */
+ skb->ooo_okay = 0;
+
segs = skb_segment(skb, features);
if (IS_ERR(segs))
goto out;
+ /* Only first segment might have ooo_okay set */
+ segs->ooo_okay = ooo_okay;
+
delta = htonl(oldlen + (thlen + mss));
skb = segs;
@@ -2950,6 +2959,17 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
thlen, skb->csum));
seq += mss;
+ if (copy_destructor) {
+ skb->destructor = gso_skb->destructor;
+ skb->sk = gso_skb->sk;
+ /* {tcp|sock}_wfree() use exact truesize accounting :
+ * sum(skb->truesize) MUST be exactly be gso_skb->truesize
+ * So we account mss bytes of 'true size' for each segment.
+ * The last segment will contain the remaining.
+ */
+ skb->truesize = mss;
+ gso_skb->truesize -= mss;
+ }
skb = skb->next;
th = tcp_hdr(skb);
@@ -2962,7 +2982,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
* is freed at TX completion, and not right now when gso_skb
* is freed by GSO engine
*/
- if (gso_skb->destructor == tcp_wfree) {
+ if (copy_destructor) {
swap(gso_skb->sk, skb->sk);
swap(gso_skb->destructor, skb->destructor);
swap(gso_skb->truesize, skb->truesize);
@@ -3269,8 +3289,11 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
for (i = 0; i < shi->nr_frags; ++i) {
const struct skb_frag_struct *f = &shi->frags[i];
- struct page *page = skb_frag_page(f);
- sg_set_page(&sg, page, skb_frag_size(f), f->page_offset);
+ unsigned int offset = f->page_offset;
+ struct page *page = skb_frag_page(f) + (offset >> PAGE_SHIFT);
+
+ sg_set_page(&sg, page, skb_frag_size(f),
+ offset_in_page(offset));
if (crypto_hash_update(desc, &sg, skb_frag_size(f)))
return 1;
}
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 08bbe609652..9c6225780bd 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2743,8 +2743,8 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack)
* tcp_xmit_retransmit_queue().
*/
static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
- int prior_sacked, bool is_dupack,
- int flag)
+ int prior_sacked, int prior_packets,
+ bool is_dupack, int flag)
{
struct inet_connection_sock *icsk = inet_csk(sk);
struct tcp_sock *tp = tcp_sk(sk);
@@ -2804,7 +2804,8 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
tcp_add_reno_sack(sk);
} else
do_lost = tcp_try_undo_partial(sk, pkts_acked);
- newly_acked_sacked = pkts_acked + tp->sacked_out - prior_sacked;
+ newly_acked_sacked = prior_packets - tp->packets_out +
+ tp->sacked_out - prior_sacked;
break;
case TCP_CA_Loss:
tcp_process_loss(sk, flag, is_dupack);
@@ -2818,7 +2819,8 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
if (is_dupack)
tcp_add_reno_sack(sk);
}
- newly_acked_sacked = pkts_acked + tp->sacked_out - prior_sacked;
+ newly_acked_sacked = prior_packets - tp->packets_out +
+ tp->sacked_out - prior_sacked;
if (icsk->icsk_ca_state <= TCP_CA_Disorder)
tcp_try_undo_dsack(sk);
@@ -3330,9 +3332,10 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
bool is_dupack = false;
u32 prior_in_flight;
u32 prior_fackets;
- int prior_packets;
+ int prior_packets = tp->packets_out;
int prior_sacked = tp->sacked_out;
int pkts_acked = 0;
+ int previous_packets_out = 0;
/* If the ack is older than previous acks
* then we can probably ignore it.
@@ -3403,14 +3406,14 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
sk->sk_err_soft = 0;
icsk->icsk_probes_out = 0;
tp->rcv_tstamp = tcp_time_stamp;
- prior_packets = tp->packets_out;
if (!prior_packets)
goto no_queue;
/* See if we can take anything off of the retransmit queue. */
+ previous_packets_out = tp->packets_out;
flag |= tcp_clean_rtx_queue(sk, prior_fackets, prior_snd_una);
- pkts_acked = prior_packets - tp->packets_out;
+ pkts_acked = previous_packets_out - tp->packets_out;
if (tcp_ack_is_dubious(sk, flag)) {
/* Advance CWND, if state allows this. */
@@ -3418,7 +3421,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
tcp_cong_avoid(sk, ack, prior_in_flight);
is_dupack = !(flag & (FLAG_SND_UNA_ADVANCED | FLAG_NOT_DUP));
tcp_fastretrans_alert(sk, pkts_acked, prior_sacked,
- is_dupack, flag);
+ prior_packets, is_dupack, flag);
} else {
if (flag & FLAG_DATA_ACKED)
tcp_cong_avoid(sk, ack, prior_in_flight);
@@ -3441,7 +3444,7 @@ no_queue:
/* If data was DSACKed, see if we can undo a cwnd reduction. */
if (flag & FLAG_DSACKING_ACK)
tcp_fastretrans_alert(sk, pkts_acked, prior_sacked,
- is_dupack, flag);
+ prior_packets, is_dupack, flag);
/* If this ack opens up a zero window, clear backoff. It was
* being used to time the probes, and is probably far higher than
* it needs to be for normal retransmission.
@@ -3464,7 +3467,7 @@ old_ack:
if (TCP_SKB_CB(skb)->sacked) {
flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una);
tcp_fastretrans_alert(sk, pkts_acked, prior_sacked,
- is_dupack, flag);
+ prior_packets, is_dupack, flag);
}
SOCK_DEBUG(sk, "Ack %u before %u:%u\n", ack, tp->snd_una, tp->snd_nxt);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 719652305a2..7999fc55c83 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1003,7 +1003,7 @@ int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
struct tcp_sock *tp = tcp_sk(sk);
struct tcp_md5sig_info *md5sig;
- key = tcp_md5_do_lookup(sk, (union tcp_md5_addr *)&addr, AF_INET);
+ key = tcp_md5_do_lookup(sk, addr, family);
if (key) {
/* Pre-existing entry - just update that one. */
memcpy(key->key, newkey, newkeylen);
@@ -1048,7 +1048,7 @@ int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, int family)
struct tcp_md5sig_key *key;
struct tcp_md5sig_info *md5sig;
- key = tcp_md5_do_lookup(sk, (union tcp_md5_addr *)&addr, AF_INET);
+ key = tcp_md5_do_lookup(sk, addr, family);
if (!key)
return -ENOENT;
hlist_del_rcu(&key->node);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 536d40929ba..ec335fabd5c 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -874,11 +874,13 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
&md5);
tcp_header_size = tcp_options_size + sizeof(struct tcphdr);
- if (tcp_packets_in_flight(tp) == 0) {
+ if (tcp_packets_in_flight(tp) == 0)
tcp_ca_event(sk, CA_EVENT_TX_START);
- skb->ooo_okay = 1;
- } else
- skb->ooo_okay = 0;
+
+ /* if no packet is in qdisc/device queue, then allow XPS to select
+ * another queue.
+ */
+ skb->ooo_okay = sk_wmem_alloc_get(sk) == 0;
skb_push(skb, tcp_header_size);
skb_reset_transport_header(skb);