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authorDavid S. Miller <davem@davemloft.net>2015-09-27 02:08:27 +0300
committerDavid S. Miller <davem@davemloft.net>2015-09-27 02:08:27 +0300
commit4963ed48f2c20196d51a447ee87dc2815584fee4 (patch)
treea1902f466dafa00453889a4f1e66b00249ce0529 /net
parent4d54d86546f62c7c4a0fe3b36a64c5e3b98ce1a9 (diff)
parent518a7cb6980cd640c7f979d29021ad870f60d7d7 (diff)
downloadlinux-4963ed48f2c20196d51a447ee87dc2815584fee4.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: net/ipv4/arp.c The net/ipv4/arp.c conflict was one commit adding a new local variable while another commit was deleting one. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/atm/clip.c3
-rw-r--r--net/bluetooth/smp.c12
-rw-r--r--net/bridge/br_multicast.c4
-rw-r--r--net/ceph/ceph_common.c1
-rw-r--r--net/ceph/crypto.c4
-rw-r--r--net/ceph/messenger.c83
-rw-r--r--net/ceph/mon_client.c37
-rw-r--r--net/ceph/osd_client.c51
-rw-r--r--net/ceph/osdmap.c2
-rw-r--r--net/core/dev.c2
-rw-r--r--net/core/fib_rules.c14
-rw-r--r--net/core/filter.c2
-rw-r--r--net/core/net-sysfs.c9
-rw-r--r--net/core/netpoll.c10
-rw-r--r--net/core/rtnetlink.c26
-rw-r--r--net/core/sock.c12
-rw-r--r--net/dccp/ackvec.c12
-rw-r--r--net/dccp/ccid.c3
-rw-r--r--net/dccp/minisocks.c4
-rw-r--r--net/dsa/dsa.c41
-rw-r--r--net/dsa/tag_trailer.c2
-rw-r--r--net/ipv4/arp.c39
-rw-r--r--net/ipv4/fib_trie.c2
-rw-r--r--net/ipv4/icmp.c4
-rw-r--r--net/ipv4/inet_connection_sock.c8
-rw-r--r--net/ipv4/inet_timewait_sock.c16
-rw-r--r--net/ipv4/ip_tunnel_core.c54
-rw-r--r--net/ipv4/route.c6
-rw-r--r--net/ipv4/tcp_cubic.c10
-rw-r--r--net/ipv4/tcp_minisocks.c13
-rw-r--r--net/ipv4/tcp_output.c1
-rw-r--r--net/ipv4/udp.c3
-rw-r--r--net/ipv4/xfrm4_policy.c2
-rw-r--r--net/ipv6/addrconf.c7
-rw-r--r--net/ipv6/ip6_fib.c26
-rw-r--r--net/ipv6/ip6_gre.c93
-rw-r--r--net/ipv6/ip6_output.c14
-rw-r--r--net/ipv6/ip6_tunnel.c147
-rw-r--r--net/ipv6/route.c16
-rw-r--r--net/mac80211/cfg.c13
-rw-r--r--net/netfilter/nf_log.c9
-rw-r--r--net/netfilter/nft_compat.c24
-rw-r--r--net/netlink/af_netlink.c63
-rw-r--r--net/netlink/af_netlink.h10
-rw-r--r--net/openvswitch/Kconfig3
-rw-r--r--net/openvswitch/conntrack.c8
-rw-r--r--net/openvswitch/datapath.c4
-rw-r--r--net/openvswitch/flow_netlink.c82
-rw-r--r--net/openvswitch/flow_table.c23
-rw-r--r--net/openvswitch/flow_table.h2
-rw-r--r--net/packet/af_packet.c32
-rw-r--r--net/sched/cls_fw.c30
-rw-r--r--net/sctp/protocol.c64
-rw-r--r--net/sunrpc/sched.c14
-rw-r--r--net/sunrpc/xprt.c6
-rw-r--r--net/sunrpc/xprtsock.c15
-rw-r--r--net/tipc/msg.c1
57 files changed, 778 insertions, 420 deletions
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 17e55dfecbe2..e07f551a863c 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -317,6 +317,9 @@ static int clip_constructor(struct neighbour *neigh)
static int clip_encap(struct atm_vcc *vcc, int mode)
{
+ if (!CLIP_VCC(vcc))
+ return -EBADFD;
+
CLIP_VCC(vcc)->encap = mode;
return 0;
}
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 4d56e593faad..25644e1bc479 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2311,12 +2311,6 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
if (!conn)
return 1;
- chan = conn->smp;
- if (!chan) {
- BT_ERR("SMP security requested but not available");
- return 1;
- }
-
if (!hci_dev_test_flag(hcon->hdev, HCI_LE_ENABLED))
return 1;
@@ -2330,6 +2324,12 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level)
if (smp_ltk_encrypt(conn, hcon->pending_sec_level))
return 0;
+ chan = conn->smp;
+ if (!chan) {
+ BT_ERR("SMP security requested but not available");
+ return 1;
+ }
+
l2cap_chan_lock(chan);
/* If SMP is already in progress ignore this request */
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index b4d858a18eb6..03661d97463c 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1006,7 +1006,7 @@ static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
ih = igmpv3_report_hdr(skb);
num = ntohs(ih->ngrec);
- len = sizeof(*ih);
+ len = skb_transport_offset(skb) + sizeof(*ih);
for (i = 0; i < num; i++) {
len += sizeof(*grec);
@@ -1067,7 +1067,7 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br,
icmp6h = icmp6_hdr(skb);
num = ntohs(icmp6h->icmp6_dataun.un_data16[1]);
- len = sizeof(*icmp6h);
+ len = skb_transport_offset(skb) + sizeof(*icmp6h);
for (i = 0; i < num; i++) {
__be16 *nsrcs, _nsrcs;
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 69a4d30a9ccf..54a00d66509e 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -357,6 +357,7 @@ ceph_parse_options(char *options, const char *dev_name,
opt->osd_keepalive_timeout = CEPH_OSD_KEEPALIVE_DEFAULT;
opt->mount_timeout = CEPH_MOUNT_TIMEOUT_DEFAULT;
opt->osd_idle_ttl = CEPH_OSD_IDLE_TTL_DEFAULT;
+ opt->monc_ping_timeout = CEPH_MONC_PING_TIMEOUT_DEFAULT;
/* get mon ip(s) */
/* ip1[:port1][,ip2[:port2]...] */
diff --git a/net/ceph/crypto.c b/net/ceph/crypto.c
index 790fe89d90c0..4440edcce0d6 100644
--- a/net/ceph/crypto.c
+++ b/net/ceph/crypto.c
@@ -79,10 +79,6 @@ int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *inkey)
return 0;
}
-
-
-#define AES_KEY_SIZE 16
-
static struct crypto_blkcipher *ceph_crypto_alloc_cipher(void)
{
return crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index e3be1d22a247..b9b0e3b5da49 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -163,6 +163,7 @@ static struct kmem_cache *ceph_msg_data_cache;
static char tag_msg = CEPH_MSGR_TAG_MSG;
static char tag_ack = CEPH_MSGR_TAG_ACK;
static char tag_keepalive = CEPH_MSGR_TAG_KEEPALIVE;
+static char tag_keepalive2 = CEPH_MSGR_TAG_KEEPALIVE2;
#ifdef CONFIG_LOCKDEP
static struct lock_class_key socket_class;
@@ -176,7 +177,7 @@ static struct lock_class_key socket_class;
static void queue_con(struct ceph_connection *con);
static void cancel_con(struct ceph_connection *con);
-static void con_work(struct work_struct *);
+static void ceph_con_workfn(struct work_struct *);
static void con_fault(struct ceph_connection *con);
/*
@@ -276,22 +277,22 @@ static void _ceph_msgr_exit(void)
ceph_msgr_wq = NULL;
}
- ceph_msgr_slab_exit();
-
BUG_ON(zero_page == NULL);
page_cache_release(zero_page);
zero_page = NULL;
+
+ ceph_msgr_slab_exit();
}
int ceph_msgr_init(void)
{
+ if (ceph_msgr_slab_init())
+ return -ENOMEM;
+
BUG_ON(zero_page != NULL);
zero_page = ZERO_PAGE(0);
page_cache_get(zero_page);
- if (ceph_msgr_slab_init())
- return -ENOMEM;
-
/*
* The number of active work items is limited by the number of
* connections, so leave @max_active at default.
@@ -749,7 +750,7 @@ void ceph_con_init(struct ceph_connection *con, void *private,
mutex_init(&con->mutex);
INIT_LIST_HEAD(&con->out_queue);
INIT_LIST_HEAD(&con->out_sent);
- INIT_DELAYED_WORK(&con->work, con_work);
+ INIT_DELAYED_WORK(&con->work, ceph_con_workfn);
con->state = CON_STATE_CLOSED;
}
@@ -1351,7 +1352,16 @@ static void prepare_write_keepalive(struct ceph_connection *con)
{
dout("prepare_write_keepalive %p\n", con);
con_out_kvec_reset(con);
- con_out_kvec_add(con, sizeof (tag_keepalive), &tag_keepalive);
+ if (con->peer_features & CEPH_FEATURE_MSGR_KEEPALIVE2) {
+ struct timespec now = CURRENT_TIME;
+
+ con_out_kvec_add(con, sizeof(tag_keepalive2), &tag_keepalive2);
+ ceph_encode_timespec(&con->out_temp_keepalive2, &now);
+ con_out_kvec_add(con, sizeof(con->out_temp_keepalive2),
+ &con->out_temp_keepalive2);
+ } else {
+ con_out_kvec_add(con, sizeof(tag_keepalive), &tag_keepalive);
+ }
con_flag_set(con, CON_FLAG_WRITE_PENDING);
}
@@ -1625,6 +1635,12 @@ static void prepare_read_tag(struct ceph_connection *con)
con->in_tag = CEPH_MSGR_TAG_READY;
}
+static void prepare_read_keepalive_ack(struct ceph_connection *con)
+{
+ dout("prepare_read_keepalive_ack %p\n", con);
+ con->in_base_pos = 0;
+}
+
/*
* Prepare to read a message.
*/
@@ -2322,13 +2338,6 @@ static int read_partial_message(struct ceph_connection *con)
return ret;
BUG_ON(!con->in_msg ^ skip);
- if (con->in_msg && data_len > con->in_msg->data_length) {
- pr_warn("%s skipping long message (%u > %zd)\n",
- __func__, data_len, con->in_msg->data_length);
- ceph_msg_put(con->in_msg);
- con->in_msg = NULL;
- skip = 1;
- }
if (skip) {
/* skip this message */
dout("alloc_msg said skip message\n");
@@ -2457,6 +2466,17 @@ static void process_message(struct ceph_connection *con)
mutex_lock(&con->mutex);
}
+static int read_keepalive_ack(struct ceph_connection *con)
+{
+ struct ceph_timespec ceph_ts;
+ size_t size = sizeof(ceph_ts);
+ int ret = read_partial(con, size, size, &ceph_ts);
+ if (ret <= 0)
+ return ret;
+ ceph_decode_timespec(&con->last_keepalive_ack, &ceph_ts);
+ prepare_read_tag(con);
+ return 1;
+}
/*
* Write something to the socket. Called in a worker thread when the
@@ -2526,6 +2546,10 @@ more_kvec:
do_next:
if (con->state == CON_STATE_OPEN) {
+ if (con_flag_test_and_clear(con, CON_FLAG_KEEPALIVE_PENDING)) {
+ prepare_write_keepalive(con);
+ goto more;
+ }
/* is anything else pending? */
if (!list_empty(&con->out_queue)) {
prepare_write_message(con);
@@ -2535,10 +2559,6 @@ do_next:
prepare_write_ack(con);
goto more;
}
- if (con_flag_test_and_clear(con, CON_FLAG_KEEPALIVE_PENDING)) {
- prepare_write_keepalive(con);
- goto more;
- }
}
/* Nothing to do! */
@@ -2641,6 +2661,9 @@ more:
case CEPH_MSGR_TAG_ACK:
prepare_read_ack(con);
break;
+ case CEPH_MSGR_TAG_KEEPALIVE2_ACK:
+ prepare_read_keepalive_ack(con);
+ break;
case CEPH_MSGR_TAG_CLOSE:
con_close_socket(con);
con->state = CON_STATE_CLOSED;
@@ -2684,6 +2707,12 @@ more:
process_ack(con);
goto more;
}
+ if (con->in_tag == CEPH_MSGR_TAG_KEEPALIVE2_ACK) {
+ ret = read_keepalive_ack(con);
+ if (ret <= 0)
+ goto out;
+ goto more;
+ }
out:
dout("try_read done on %p ret %d\n", con, ret);
@@ -2799,7 +2828,7 @@ static void con_fault_finish(struct ceph_connection *con)
/*
* Do some work on a connection. Drop a connection ref when we're done.
*/
-static void con_work(struct work_struct *work)
+static void ceph_con_workfn(struct work_struct *work)
{
struct ceph_connection *con = container_of(work, struct ceph_connection,
work.work);
@@ -3101,6 +3130,20 @@ void ceph_con_keepalive(struct ceph_connection *con)
}
EXPORT_SYMBOL(ceph_con_keepalive);
+bool ceph_con_keepalive_expired(struct ceph_connection *con,
+ unsigned long interval)
+{
+ if (interval > 0 &&
+ (con->peer_features & CEPH_FEATURE_MSGR_KEEPALIVE2)) {
+ struct timespec now = CURRENT_TIME;
+ struct timespec ts;
+ jiffies_to_timespec(interval, &ts);
+ ts = timespec_add(con->last_keepalive_ack, ts);
+ return timespec_compare(&now, &ts) >= 0;
+ }
+ return false;
+}
+
static struct ceph_msg_data *ceph_msg_data_create(enum ceph_msg_data_type type)
{
struct ceph_msg_data *data;
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 9d6ff1215928..edda01626a45 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -149,6 +149,10 @@ static int __open_session(struct ceph_mon_client *monc)
CEPH_ENTITY_TYPE_MON, monc->cur_mon,
&monc->monmap->mon_inst[monc->cur_mon].addr);
+ /* send an initial keepalive to ensure our timestamp is
+ * valid by the time we are in an OPENED state */
+ ceph_con_keepalive(&monc->con);
+
/* initiatiate authentication handshake */
ret = ceph_auth_build_hello(monc->auth,
monc->m_auth->front.iov_base,
@@ -170,14 +174,19 @@ static bool __sub_expired(struct ceph_mon_client *monc)
*/
static void __schedule_delayed(struct ceph_mon_client *monc)
{
- unsigned int delay;
+ struct ceph_options *opt = monc->client->options;
+ unsigned long delay;
- if (monc->cur_mon < 0 || __sub_expired(monc))
+ if (monc->cur_mon < 0 || __sub_expired(monc)) {
delay = 10 * HZ;
- else
+ } else {
delay = 20 * HZ;
- dout("__schedule_delayed after %u\n", delay);
- schedule_delayed_work(&monc->delayed_work, delay);
+ if (opt->monc_ping_timeout > 0)
+ delay = min(delay, opt->monc_ping_timeout / 3);
+ }
+ dout("__schedule_delayed after %lu\n", delay);
+ schedule_delayed_work(&monc->delayed_work,
+ round_jiffies_relative(delay));
}
/*
@@ -743,11 +752,23 @@ static void delayed_work(struct work_struct *work)
__close_session(monc);
__open_session(monc); /* continue hunting */
} else {
- ceph_con_keepalive(&monc->con);
+ struct ceph_options *opt = monc->client->options;
+ int is_auth = ceph_auth_is_authenticated(monc->auth);
+ if (ceph_con_keepalive_expired(&monc->con,
+ opt->monc_ping_timeout)) {
+ dout("monc keepalive timeout\n");
+ is_auth = 0;
+ __close_session(monc);
+ monc->hunting = true;
+ __open_session(monc);
+ }
- __validate_auth(monc);
+ if (!monc->hunting) {
+ ceph_con_keepalive(&monc->con);
+ __validate_auth(monc);
+ }
- if (ceph_auth_is_authenticated(monc->auth))
+ if (is_auth)
__send_subscribe(monc);
}
__schedule_delayed(monc);
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 50033677c0fa..80b94e37c94a 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -2817,8 +2817,9 @@ out:
}
/*
- * lookup and return message for incoming reply. set up reply message
- * pages.
+ * Lookup and return message for incoming reply. Don't try to do
+ * anything about a larger than preallocated data portion of the
+ * message at the moment - for now, just skip the message.
*/
static struct ceph_msg *get_reply(struct ceph_connection *con,
struct ceph_msg_header *hdr,
@@ -2836,10 +2837,10 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
mutex_lock(&osdc->request_mutex);
req = __lookup_request(osdc, tid);
if (!req) {
- *skip = 1;
+ pr_warn("%s osd%d tid %llu unknown, skipping\n",
+ __func__, osd->o_osd, tid);
m = NULL;
- dout("get_reply unknown tid %llu from osd%d\n", tid,
- osd->o_osd);
+ *skip = 1;
goto out;
}
@@ -2849,10 +2850,9 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
ceph_msg_revoke_incoming(req->r_reply);
if (front_len > req->r_reply->front_alloc_len) {
- pr_warn("get_reply front %d > preallocated %d (%u#%llu)\n",
- front_len, req->r_reply->front_alloc_len,
- (unsigned int)con->peer_name.type,
- le64_to_cpu(con->peer_name.num));
+ pr_warn("%s osd%d tid %llu front %d > preallocated %d\n",
+ __func__, osd->o_osd, req->r_tid, front_len,
+ req->r_reply->front_alloc_len);
m = ceph_msg_new(CEPH_MSG_OSD_OPREPLY, front_len, GFP_NOFS,
false);
if (!m)
@@ -2860,37 +2860,22 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
ceph_msg_put(req->r_reply);
req->r_reply = m;
}
- m = ceph_msg_get(req->r_reply);
-
- if (data_len > 0) {
- struct ceph_osd_data *osd_data;
- /*
- * XXX This is assuming there is only one op containing
- * XXX page data. Probably OK for reads, but this
- * XXX ought to be done more generally.
- */
- osd_data = osd_req_op_extent_osd_data(req, 0);
- if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) {
- if (osd_data->pages &&
- unlikely(osd_data->length < data_len)) {
-
- pr_warn("tid %lld reply has %d bytes we had only %llu bytes ready\n",
- tid, data_len, osd_data->length);
- *skip = 1;
- ceph_msg_put(m);
- m = NULL;
- goto out;
- }
- }
+ if (data_len > req->r_reply->data_length) {
+ pr_warn("%s osd%d tid %llu data %d > preallocated %zu, skipping\n",
+ __func__, osd->o_osd, req->r_tid, data_len,
+ req->r_reply->data_length);
+ m = NULL;
+ *skip = 1;
+ goto out;
}
- *skip = 0;
+
+ m = ceph_msg_get(req->r_reply);
dout("get_reply tid %lld %p\n", tid, m);
out:
mutex_unlock(&osdc->request_mutex);
return m;
-
}
static struct ceph_msg *alloc_msg(struct ceph_connection *con,
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 4a3125836b64..7d8f581d9f1f 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1300,7 +1300,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end,
ceph_decode_addr(&addr);
pr_info("osd%d up\n", osd);
BUG_ON(osd >= map->max_osd);
- map->osd_state[osd] |= CEPH_OSD_UP;
+ map->osd_state[osd] |= CEPH_OSD_UP | CEPH_OSD_EXISTS;
map->osd_addr[osd] = addr;
}
diff --git a/net/core/dev.c b/net/core/dev.c
index 464c22b6261a..323c04edd779 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4723,6 +4723,8 @@ void napi_disable(struct napi_struct *n)
while (test_and_set_bit(NAPI_STATE_SCHED, &n->state))
msleep(1);
+ while (test_and_set_bit(NAPI_STATE_NPSVC, &n->state))
+ msleep(1);
hrtimer_cancel(&n->timer);
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index bf77e3639ce0..365de66436ac 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -631,15 +631,17 @@ static int dump_rules(struct sk_buff *skb, struct netlink_callback *cb,
{
int idx = 0;
struct fib_rule *rule;
+ int err = 0;
rcu_read_lock();
list_for_each_entry_rcu(rule, &ops->rules_list, list) {
if (idx < cb->args[1])
goto skip;
- if (fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq, RTM_NEWRULE,
- NLM_F_MULTI, ops) < 0)
+ err = fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, RTM_NEWRULE,
+ NLM_F_MULTI, ops);
+ if (err)
break;
skip:
idx++;
@@ -648,7 +650,7 @@ skip:
cb->args[1] = idx;
rules_ops_put(ops);
- return skb->len;
+ return err;
}
static int fib_nl_dumprule(struct sk_buff *skb, struct netlink_callback *cb)
@@ -664,7 +666,9 @@ static int fib_nl_dumprule(struct sk_buff *skb, struct netlink_callback *cb)
if (ops == NULL)
return -EAFNOSUPPORT;
- return dump_rules(skb, cb, ops);
+ dump_rules(skb, cb, ops);
+
+ return skb->len;
}
rcu_read_lock();
diff --git a/net/core/filter.c b/net/core/filter.c
index 96bd962c292d..60e3fe7c59c0 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -478,9 +478,9 @@ do_pass:
bpf_src = BPF_X;
} else {
insn->dst_reg = BPF_REG_A;
- insn->src_reg = BPF_REG_X;
insn->imm = fp->k;
bpf_src = BPF_SRC(fp->code);
+ insn->src_reg = bpf_src == BPF_X ? BPF_REG_X : 0;
}
/* Common case where 'jump_false' is next insn. */
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 49b599062af1..b4c530065106 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1478,6 +1478,15 @@ static int of_dev_node_match(struct device *dev, const void *data)
return ret == 0 ? dev->of_node == data : ret;
}
+/*
+ * of_find_net_device_by_node - lookup the net device for the device node
+ * @np: OF device node
+ *
+ * Looks up the net_device structure corresponding with the device node.
+ * If successful, returns a pointer to the net_device with the embedded
+ * struct device refcount incremented by one, or NULL on failure. The
+ * refcount must be dropped when done with the net_device.
+ */
struct net_device *of_find_net_device_by_node(struct device_node *np)
{
struct device *dev;
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 6aa3db8dfc3b..8bdada242a7d 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -142,7 +142,7 @@ static void queue_process(struct work_struct *work)
*/
static int poll_one_napi(struct napi_struct *napi, int budget)
{
- int work;
+ int work = 0;
/* net_rx_action's ->poll() invocations and our's are
* synchronized by this test which is only made while
@@ -151,7 +151,12 @@ static int poll_one_napi(struct napi_struct *napi, int budget)
if (!test_bit(NAPI_STATE_SCHED, &napi->state))
return budget;
- set_bit(NAPI_STATE_NPSVC, &napi->state);
+ /* If we set this bit but see that it has already been set,
+ * that indicates that napi has been disabled and we need
+ * to abort this operation
+ */
+ if (test_and_set_bit(NAPI_STATE_NPSVC, &napi->state))
+ goto out;
work = napi->poll(napi, budget);
WARN_ONCE(work > budget, "%pF exceeded budget in poll\n", napi->poll);
@@ -159,6 +164,7 @@ static int poll_one_napi(struct napi_struct *napi, int budget)
clear_bit(NAPI_STATE_NPSVC, &napi->state);
+out:
return budget - work;
}
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index e5452296ec2f..474a6da3b51a 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3047,6 +3047,7 @@ static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
u32 portid = NETLINK_CB(cb->skb).portid;
u32 seq = cb->nlh->nlmsg_seq;
u32 filter_mask = 0;
+ int err;
if (nlmsg_len(cb->nlh) > sizeof(struct ifinfomsg)) {
struct nlattr *extfilt;
@@ -3067,20 +3068,25 @@ static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
struct net_device *br_dev = netdev_master_upper_dev_get(dev);
if (br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
- if (idx >= cb->args[0] &&
- br_dev->netdev_ops->ndo_bridge_getlink(
- skb, portid, seq, dev, filter_mask,
- NLM_F_MULTI) < 0)
- break;
+ if (idx >= cb->args[0]) {
+ err = br_dev->netdev_ops->ndo_bridge_getlink(
+ skb, portid, seq, dev,
+ filter_mask, NLM_F_MULTI);
+ if (err < 0 && err != -EOPNOTSUPP)
+ break;
+ }
idx++;
}
if (ops->ndo_bridge_getlink) {
- if (idx >= cb->args[0] &&
- ops->ndo_bridge_getlink(skb, portid, seq, dev,
- filter_mask,
- NLM_F_MULTI) < 0)
- break;
+ if (idx >= cb->args[0]) {
+ err = ops->ndo_bridge_getlink(skb, portid,
+ seq, dev,
+ filter_mask,
+ NLM_F_MULTI);
+ if (err < 0 && err != -EOPNOTSUPP)
+ break;
+ }
idx++;
}
}
diff --git a/net/core/sock.c b/net/core/sock.c
index ca2984afe16e..3307c02244d3 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2740,10 +2740,8 @@ static void req_prot_cleanup(struct request_sock_ops *rsk_prot)
return;
kfree(rsk_prot->slab_name);
rsk_prot->slab_name = NULL;
- if (rsk_prot->slab) {
- kmem_cache_destroy(rsk_prot->slab);
- rsk_prot->slab = NULL;
- }
+ kmem_cache_destroy(rsk_prot->slab);
+ rsk_prot->slab = NULL;
}
static int req_prot_init(const struct proto *prot)
@@ -2828,10 +2826,8 @@ void proto_unregister(struct proto *prot)
list_del(&prot->node);
mutex_unlock(&proto_list_mutex);
- if (prot->slab != NULL) {
- kmem_cache_destroy(prot->slab);
- prot->slab = NULL;
- }
+ kmem_cache_destroy(prot->slab);
+ prot->slab = NULL;
req_prot_cleanup(prot->rsk_prot);
diff --git a/net/dccp/ackvec.c b/net/dccp/ackvec.c
index bd9e718c2a20..3de0d0362d7f 100644
--- a/net/dccp/ackvec.c
+++ b/net/dccp/ackvec.c
@@ -398,12 +398,8 @@ out_err:
void dccp_ackvec_exit(void)
{
- if (dccp_ackvec_slab != NULL) {
- kmem_cache_destroy(dccp_ackvec_slab);
- dccp_ackvec_slab = NULL;
- }
- if (dccp_ackvec_record_slab != NULL) {
- kmem_cache_destroy(dccp_ackvec_record_slab);
- dccp_ackvec_record_slab = NULL;
- }
+ kmem_cache_destroy(dccp_ackvec_slab);
+ dccp_ackvec_slab = NULL;
+ kmem_cache_destroy(dccp_ackvec_record_slab);
+ dccp_ackvec_record_slab = NULL;
}
diff --git a/net/dccp/ccid.c b/net/dccp/ccid.c
index 83498975165f..90f77d08cc37 100644
--- a/net/dccp/ccid.c
+++ b/net/dccp/ccid.c
@@ -95,8 +95,7 @@ static struct kmem_cache *ccid_kmem_cache_create(int obj_size, char *slab_name_f
static void ccid_kmem_cache_destroy(struct kmem_cache *slab)
{
- if (slab != NULL)
- kmem_cache_destroy(slab);
+ kmem_cache_destroy(slab);
}
static int __init ccid_activate(struct ccid_operations *ccid_ops)
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 30addee2dd03..838f524cf11a 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -48,8 +48,6 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
tw->tw_ipv6only = sk->sk_ipv6only;
}
#endif
- /* Linkage updates. */
- __inet_twsk_hashdance(tw, sk, &dccp_hashinfo);
/* Get the TIME_WAIT timeout firing. */
if (timeo < rto)
@@ -60,6 +58,8 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
timeo = DCCP_TIMEWAIT_LEN;
inet_twsk_schedule(tw, timeo);
+ /* Linkage updates. */
+ __inet_twsk_hashdance(tw, sk, &dccp_hashinfo);
inet_twsk_put(tw);
} else {
/* Sorry, if we're out of memory, just CLOSE this
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 76e3800765f8..c59fa5d9c22c 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -634,6 +634,10 @@ static void dsa_of_free_platform_data(struct dsa_platform_data *pd)
port_index++;
}
kfree(pd->chip[i].rtable);
+
+ /* Drop our reference to the MDIO bus device */
+ if (pd->chip[i].host_dev)
+ put_device(pd->chip[i].host_dev);
}
kfree(pd->chip);
}
@@ -661,16 +665,22 @@ static int dsa_of_probe(struct device *dev)
return -EPROBE_DEFER;
ethernet = of_parse_phandle(np, "dsa,ethernet", 0);
- if (!ethernet)
- return -EINVAL;
+ if (!ethernet) {
+ ret = -EINVAL;
+ goto out_put_mdio;
+ }
ethernet_dev = of_find_net_device_by_node(ethernet);
- if (!ethernet_dev)
- return -EPROBE_DEFER;
+ if (!ethernet_dev) {
+ ret = -EPROBE_DEFER;
+ goto out_put_mdio;
+ }
pd = kzalloc(sizeof(*pd), GFP_KERNEL);
- if (!pd)
- return -ENOMEM;
+ if (!pd) {
+ ret = -ENOMEM;
+ goto out_put_ethernet;
+ }
dev->platform_data = pd;
pd->of_netdev = ethernet_dev;
@@ -691,7 +701,9 @@ static int dsa_of_probe(struct device *dev)
cd = &pd->chip[chip_index];
cd->of_node = child;
- cd->host_dev = &mdio_bus->dev;
+
+ /* When assigning the host device, increment its refcount */
+ cd->host_dev = get_device(&mdio_bus->dev);
sw_addr = of_get_property(child, "reg", NULL);
if (!sw_addr)
@@ -711,6 +723,12 @@ static int dsa_of_probe(struct device *dev)
ret = -EPROBE_DEFER;
goto out_free_chip;
}
+
+ /* Drop the mdio_bus device ref, replacing the host
+ * device with the mdio_bus_switch device, keeping
+ * the refcount from of_mdio_find_bus() above.
+ */
+ put_device(cd->host_dev);
cd->host_dev = &mdio_bus_switch->dev;
}
@@ -744,6 +762,10 @@ static int dsa_of_probe(struct device *dev)
}
}
+ /* The individual chips hold their own refcount on the mdio bus,
+ * so drop ours */
+ put_device(&mdio_bus->dev);
+
return 0;
out_free_chip:
@@ -751,6 +773,10 @@ out_free_chip:
out_free:
kfree(pd);
dev->platform_data = NULL;
+out_put_ethernet:
+ put_device(&ethernet_dev->dev);
+out_put_mdio:
+ put_device(&mdio_bus->dev);
return ret;
}
@@ -762,6 +788,7 @@ static void dsa_of_remove(struct device *dev)
return;
dsa_of_free_platform_data(pd);
+ put_device(&pd->of_netdev->dev);
kfree(pd);
}
#else
diff --git a/net/dsa/tag_trailer.c b/net/dsa/tag_trailer.c
index d25efc93d8f1..b6ca0890d018 100644
--- a/net/dsa/tag_trailer.c
+++ b/net/dsa/tag_trailer.c
@@ -78,7 +78,7 @@ static int trailer_rcv(struct sk_buff *skb, struct net_device *dev,
trailer = skb_tail_pointer(skb) - 4;
if (trailer[0] != 0x80 || (trailer[1] & 0xf8) != 0x00 ||
- (trailer[3] & 0xef) != 0x00 || trailer[3] != 0x00)
+ (trailer[2] & 0xef) != 0x00 || trailer[3] != 0x00)
goto out_drop;
source_port = trailer[1] & 7;
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 61ff5ea31283..01308e6e6127 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -113,6 +113,8 @@
#include <net/arp.h>
#include <net/ax25.h>
#include <net/netrom.h>
+#include <net/dst_metadata.h>
+#include <net/ip_tunnels.h>
#include <linux/uaccess.h>
@@ -296,7 +298,8 @@ static void arp_send_dst(int type, int ptype, __be32 dest_ip,
struct net_device *dev, __be32 src_ip,
const unsigned char *dest_hw,
const unsigned char *src_hw,
- const unsigned char *target_hw, struct sk_buff *oskb)
+ const unsigned char *target_hw,
+ struct dst_entry *dst)
{
struct sk_buff *skb;
@@ -309,9 +312,7 @@ static void arp_send_dst(int type, int ptype, __be32 dest_ip,
if (!skb)
return;
- if (oskb)
- skb_dst_copy(skb, oskb);
-
+ skb_dst_set(skb, dst);
arp_xmit(skb);
}
@@ -333,6 +334,7 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
__be32 target = *(__be32 *)neigh->primary_key;
int probes = atomic_read(&neigh->probes);
struct in_device *in_dev;
+ struct dst_entry *dst = NULL;
rcu_read_lock();
in_dev = __in_dev_get_rcu(dev);
@@ -381,9 +383,10 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
}
}
+ if (skb && !(dev->priv_flags & IFF_XMIT_DST_RELEASE))
+ dst = dst_clone(skb_dst(skb));
arp_send_dst(ARPOP_REQUEST, ETH_P_ARP, target, dev, saddr,
- dst_hw, dev->dev_addr, NULL,
- dev->priv_flags & IFF_XMIT_DST_RELEASE ? NULL : skb);
+ dst_hw, dev->dev_addr, NULL, dst);
}
static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)
@@ -654,6 +657,7 @@ static int arp_process(struct net *net, struct sock *sk, struct sk_buff *skb)
u16 dev_type = dev->type;
int addr_type;
struct neighbour *n;
+ struct dst_entry *reply_dst = NULL;
bool is_garp = false;
/* arp_rcv below verifies the ARP header and verifies the device
@@ -754,13 +758,18 @@ static int arp_process(struct net *net, struct sock *sk, struct sk_buff *skb)
* cache.
*/
+ if (arp->ar_op == htons(ARPOP_REQUEST) && skb_metadata_dst(skb))
+ reply_dst = (struct dst_entry *)
+ iptunnel_metadata_reply(skb_metadata_dst(skb),
+ GFP_ATOMIC);
+
/* Special case: IPv4 duplicate address detection packet (RFC2131) */
if (sip == 0) {
if (arp->ar_op == htons(ARPOP_REQUEST) &&
inet_addr_type_dev_table(net, dev, tip) == RTN_LOCAL &&
!arp_ignore(in_dev, sip, tip))
- arp_send(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip, sha,
- dev->dev_addr, sha);
+ arp_send_dst(ARPOP_REPLY, ETH_P_ARP, sip, dev, tip,
+ sha, dev->dev_addr, sha, reply_dst);
goto out;
}
@@ -779,9 +788,10 @@ static int arp_process(struct net *net, struct sock *sk, struct sk_buff *skb)
if (!dont_send) {
n = neigh_event_ns(&arp_tbl, sha, &sip, dev);
if (n) {
- arp_send(ARPOP_REPLY, ETH_P_ARP, sip,
- dev, tip, sha, dev->dev_addr,
- sha);
+ arp_send_dst(ARPOP_REPLY, ETH_P_ARP,
+ sip, dev, tip, sha,
+ dev->dev_addr, sha,
+ reply_dst);
neigh_release(n);
}
}
@@ -799,9 +809,10 @@ static int arp_process(struct net *net, struct sock *sk, struct sk_buff *skb)
if (NEIGH_CB(skb)->flags & LOCALLY_ENQUEUED ||
skb->pkt_type == PACKET_HOST ||
NEIGH_VAR(in_dev->arp_parms, PROXY_DELAY) == 0) {
- arp_send(ARPOP_REPLY, ETH_P_ARP, sip,
- dev, tip, sha, dev->dev_addr,
- sha);
+ arp_send_dst(ARPOP_REPLY, ETH_P_ARP,
+ sip, dev, tip, sha,
+ dev->dev_addr, sha,
+ reply_dst);
} else {
pneigh_enqueue(&arp_tbl,
in_dev->arp_parms, skb);
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 26d6ffb6d23c..6c2af797f2f9 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1426,7 +1426,7 @@ found:
nh->nh_flags & RTNH_F_LINKDOWN &&
!(fib_flags & FIB_LOOKUP_IGNORE_LINKSTATE))
continue;
- if (!(flp->flowi4_flags & FLOWI_FLAG_VRFSRC)) {
+ if (!(flp->flowi4_flags & FLOWI_FLAG_SKIP_NH_OIF)) {
if (flp->flowi4_oif &&
flp->flowi4_oif != nh->nh_oif)
continue;
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 79fe05befcae..e5eb8ac4089d 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -427,7 +427,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
fl4.flowi4_mark = mark;
fl4.flowi4_tos = RT_TOS(ip_hdr(skb)->tos);
fl4.flowi4_proto = IPPROTO_ICMP;
- fl4.flowi4_oif = vrf_master_ifindex(skb->dev) ? : skb->dev->ifindex;
+ fl4.flowi4_oif = vrf_master_ifindex(skb->dev);
security_skb_classify_flow(skb, flowi4_to_flowi(&fl4));
rt = ip_route_output_key(net, &fl4);
if (IS_ERR(rt))
@@ -461,7 +461,7 @@ static struct rtable *icmp_route_lookup(struct net *net,
fl4->flowi4_proto = IPPROTO_ICMP;
fl4->fl4_icmp_type = type;
fl4->fl4_icmp_code = code;
- fl4->flowi4_oif = vrf_master_ifindex(skb_in->dev) ? : skb_in->dev->ifindex;
+ fl4->flowi4_oif = vrf_master_ifindex(skb_in->dev);
security_skb_classify_flow(skb_in, flowi4_to_flowi(fl4));
rt = __ip_route_output_key(net, fl4);
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index bac205136e1c..ba2f90d90cb5 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -685,20 +685,20 @@ void reqsk_queue_hash_req(struct request_sock_queue *queue,
req->num_timeout = 0;
req->sk = NULL;
+ setup_timer(&req->rsk_timer, reqsk_timer_handler, (unsigned long)req);
+ mod_timer_pinned(&req->rsk_timer, jiffies + timeout);
+ req->rsk_hash = hash;
+
/* before letting lookups find us, make sure all req fields
* are committed to memory and refcnt initialized.
*/
smp_wmb();
atomic_set(&req->rsk_refcnt, 2);
- setup_timer(&req->rsk_timer, reqsk_timer_handler, (unsigned long)req);
- req->rsk_hash = hash;
spin_lock(&queue->syn_wait_lock);
req->dl_next = lopt->syn_table[hash];
lopt->syn_table[hash] = req;
spin_unlock(&queue->syn_wait_lock);
-
- mod_timer_pinned(&req->rsk_timer, jiffies + timeout);
}
EXPORT_SYMBOL(reqsk_queue_hash_req);
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index ae22cc24fbe8..c67f9bd7699c 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -123,13 +123,15 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
/*
* Step 2: Hash TW into tcp ehash chain.
* Notes :
- * - tw_refcnt is set to 3 because :
+ * - tw_refcnt is set to 4 because :
* - We have one reference from bhash chain.
* - We have one reference from ehash chain.
+ * - We have one reference from timer.
+ * - One reference for ourself (our caller will release it).
* We can use atomic_set() because prior spin_lock()/spin_unlock()
* committed into memory all tw fields.
*/
- atomic_set(&tw->tw_refcnt, 1 + 1 + 1);
+ atomic_set(&tw->tw_refcnt, 4);
inet_twsk_add_node_rcu(tw, &ehead->chain);
/* Step 3: Remove SK from hash chain */
@@ -217,7 +219,7 @@ void inet_twsk_deschedule_put(struct inet_timewait_sock *tw)
}
EXPORT_SYMBOL(inet_twsk_deschedule_put);
-void inet_twsk_schedule(struct inet_timewait_sock *tw, const int timeo)
+void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo, bool rearm)
{
/* timeout := RTO * 3.5
*
@@ -245,12 +247,14 @@ void inet_twsk_schedule(struct inet_timewait_sock *tw, const int timeo)
*/
tw->tw_kill = timeo <= 4*HZ;
- if (!mod_timer_pinned(&tw->tw_timer, jiffies + timeo)) {
- atomic_inc(&tw->tw_refcnt);
+ if (!rearm) {
+ BUG_ON(mod_timer_pinned(&tw->tw_timer, jiffies + timeo));
atomic_inc(&tw->tw_dr->tw_count);
+ } else {
+ mod_timer_pending(&tw->tw_timer, jiffies + timeo);
}
}
-EXPORT_SYMBOL_GPL(inet_twsk_schedule);
+EXPORT_SYMBOL_GPL(__inet_twsk_schedule);
void inet_twsk_purge(struct inet_hashinfo *hashinfo,
struct inet_timewait_death_row *twdr, int family)
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 29ed6c5a5185..84dce6a92f93 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -46,12 +46,13 @@
#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include <net/rtnetlink.h>
+#include <net/dst_metadata.h>
int iptunnel_xmit(struct sock *sk, struct rtable *rt, struct sk_buff *skb,
__be32 src, __be32 dst, __u8 proto,
__u8 tos, __u8 ttl, __be16 df, bool xnet)
{
- int pkt_len = skb->len;
+ int pkt_len = skb->len - skb_inner_network_offset(skb);
struct iphdr *iph;
int err;
@@ -119,6 +120,33 @@ int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto)
}
EXPORT_SYMBOL_GPL(iptunnel_pull_header);
+struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md,
+ gfp_t flags)
+{
+ struct metadata_dst *res;
+ struct ip_tunnel_info *dst, *src;
+
+ if (!md || md->u.tun_info.mode & IP_TUNNEL_INFO_TX)
+ return NULL;
+
+ res = metadata_dst_alloc(0, flags);
+ if (!res)
+ return NULL;
+
+ dst = &res->u.tun_info;
+ src = &md->u.tun_info;
+ dst->key.tun_id = src->key.tun_id;
+ if (src->mode & IP_TUNNEL_INFO_IPV6)
+ memcpy(&dst->key.u.ipv6.dst, &src->key.u.ipv6.src,
+ sizeof(struct in6_addr));
+ else
+ dst->key.u.ipv4.dst = src->key.u.ipv4.src;
+ dst->mode = src->mode | IP_TUNNEL_INFO_TX;
+
+ return res;
+}
+EXPORT_SYMBOL_GPL(iptunnel_metadata_reply);
+
struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb,
bool csum_help,
int gso_type_mask)
@@ -198,8 +226,6 @@ static const struct nla_policy ip_tun_policy[LWTUNNEL_IP_MAX + 1] = {
[LWTUNNEL_IP_SRC] = { .type = NLA_U32 },
[LWTUNNEL_IP_TTL] = { .type = NLA_U8 },
[LWTUNNEL_IP_TOS] = { .type = NLA_U8 },
- [LWTUNNEL_IP_SPORT] = { .type = NLA_U16 },
- [LWTUNNEL_IP_DPORT] = { .type = NLA_U16 },
[LWTUNNEL_IP_FLAGS] = { .type = NLA_U16 },
};
@@ -239,12 +265,6 @@ static int ip_tun_build_state(struct net_device *dev, struct nlattr *attr,
if (tb[LWTUNNEL_IP_TOS])
tun_info->key.tos = nla_get_u8(tb[LWTUNNEL_IP_TOS]);
- if (tb[LWTUNNEL_IP_SPORT])
- tun_info->key.tp_src = nla_get_be16(tb[LWTUNNEL_IP_SPORT]);
-
- if (tb[LWTUNNEL_IP_DPORT])
- tun_info->key.tp_dst = nla_get_be16(tb[LWTUNNEL_IP_DPORT]);
-
if (tb[LWTUNNEL_IP_FLAGS])
tun_info->key.tun_flags = nla_get_u16(tb[LWTUNNEL_IP_FLAGS]);
@@ -266,8 +286,6 @@ static int ip_tun_fill_encap_info(struct sk_buff *skb,
nla_put_be32(skb, LWTUNNEL_IP_SRC, tun_info->key.u.ipv4.src) ||
nla_put_u8(skb, LWTUNNEL_IP_TOS, tun_info->key.tos) ||
nla_put_u8(skb, LWTUNNEL_IP_TTL, tun_info->key.ttl) ||
- nla_put_u16(skb, LWTUNNEL_IP_SPORT, tun_info->key.tp_src) ||
- nla_put_u16(skb, LWTUNNEL_IP_DPORT, tun_info->key.tp_dst) ||
nla_put_u16(skb, LWTUNNEL_IP_FLAGS, tun_info->key.tun_flags))
return -ENOMEM;
@@ -281,8 +299,6 @@ static int ip_tun_encap_nlsize(struct lwtunnel_state *lwtstate)
+ nla_total_size(4) /* LWTUNNEL_IP_SRC */
+ nla_total_size(1) /* LWTUNNEL_IP_TOS */
+ nla_total_size(1) /* LWTUNNEL_IP_TTL */
- + nla_total_size(2) /* LWTUNNEL_IP_SPORT */
- + nla_total_size(2) /* LWTUNNEL_IP_DPORT */
+ nla_total_size(2); /* LWTUNNEL_IP_FLAGS */
}
@@ -305,8 +321,6 @@ static const struct nla_policy ip6_tun_policy[LWTUNNEL_IP6_MAX + 1] = {
[LWTUNNEL_IP6_SRC] = { .len = sizeof(struct in6_addr) },
[LWTUNNEL_IP6_HOPLIMIT] = { .type = NLA_U8 },
[LWTUNNEL_IP6_TC] = { .type = NLA_U8 },
- [LWTUNNEL_IP6_SPORT] = { .type = NLA_U16 },
- [LWTUNNEL_IP6_DPORT] = { .type = NLA_U16 },
[LWTUNNEL_IP6_FLAGS] = { .type = NLA_U16 },
};
@@ -346,12 +360,6 @@ static int ip6_tun_build_state(struct net_device *dev, struct nlattr *attr,
if (tb[LWTUNNEL_IP6_TC])
tun_info->key.tos = nla_get_u8(tb[LWTUNNEL_IP6_TC]);
- if (tb[LWTUNNEL_IP6_SPORT])
- tun_info->key.tp_src = nla_get_be16(tb[LWTUNNEL_IP6_SPORT]);
-
- if (tb[LWTUNNEL_IP6_DPORT])
- tun_info->key.tp_dst = nla_get_be16(tb[LWTUNNEL_IP6_DPORT]);
-
if (tb[LWTUNNEL_IP6_FLAGS])
tun_info->key.tun_flags = nla_get_u16(tb[LWTUNNEL_IP6_FLAGS]);
@@ -373,8 +381,6 @@ static int ip6_tun_fill_encap_info(struct sk_buff *skb,
nla_put_in6_addr(skb, LWTUNNEL_IP6_SRC, &tun_info->key.u.ipv6.src) ||
nla_put_u8(skb, LWTUNNEL_IP6_HOPLIMIT, tun_info->key.tos) ||
nla_put_u8(skb, LWTUNNEL_IP6_TC, tun_info->key.ttl) ||
- nla_put_u16(skb, LWTUNNEL_IP6_SPORT, tun_info->key.tp_src) ||
- nla_put_u16(skb, LWTUNNEL_IP6_DPORT, tun_info->key.tp_dst) ||
nla_put_u16(skb, LWTUNNEL_IP6_FLAGS, tun_info->key.tun_flags))
return -ENOMEM;
@@ -388,8 +394,6 @@ static int ip6_tun_encap_nlsize(struct lwtunnel_state *lwtstate)
+ nla_total_size(16) /* LWTUNNEL_IP6_SRC */
+ nla_total_size(1) /* LWTUNNEL_IP6_HOPLIMIT */
+ nla_total_size(1) /* LWTUNNEL_IP6_TC */
- + nla_total_size(2) /* LWTUNNEL_IP6_SPORT */
- + nla_total_size(2) /* LWTUNNEL_IP6_DPORT */
+ nla_total_size(2); /* LWTUNNEL_IP6_FLAGS */
}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f7afcba8b1a1..6bab84503cd9 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2036,6 +2036,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
struct fib_result res;
struct rtable *rth;
int orig_oif;
+ int err = -ENETUNREACH;
res.tclassid = 0;
res.fi = NULL;
@@ -2144,7 +2145,8 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
goto make_route;
}
- if (fib_lookup(net, fl4, &res, 0)) {
+ err = fib_lookup(net, fl4, &res, 0);
+ if (err) {
res.fi = NULL;
res.table = NULL;
if (fl4->flowi4_oif) {
@@ -2172,7 +2174,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *fl4)
res.type = RTN_UNICAST;
goto make_route;
}
- rth = ERR_PTR(-ENETUNREACH);
+ rth = ERR_PTR(err);
goto out;
}
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index c6ded6b2a79f..448c2615fece 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -154,14 +154,20 @@ static void bictcp_init(struct sock *sk)
static void bictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event)
{
if (event == CA_EVENT_TX_START) {
- s32 delta = tcp_time_stamp - tcp_sk(sk)->lsndtime;
struct bictcp *ca = inet_csk_ca(sk);
+ u32 now = tcp_time_stamp;
+ s32 delta;
+
+ delta = now - tcp_sk(sk)->lsndtime;
/* We were application limited (idle) for a while.
* Shift epoch_start to keep cwnd growth to cubic curve.
*/
- if (ca->epoch_start && delta > 0)
+ if (ca->epoch_start && delta > 0) {
ca->epoch_start += delta;
+ if (after(ca->epoch_start, now))
+ ca->epoch_start = now;
+ }
return;
}
}
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index e0a87c238882..e4fe62b6b106 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -162,9 +162,9 @@ kill_with_rst:
if (tcp_death_row.sysctl_tw_recycle &&
tcptw->tw_ts_recent_stamp &&
tcp_tw_remember_stamp(tw))
- inet_twsk_schedule(tw, tw->tw_timeout);
+ inet_twsk_reschedule(tw, tw->tw_timeout);
else
- inet_twsk_schedule(tw, TCP_TIMEWAIT_LEN);
+ inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
return TCP_TW_ACK;
}
@@ -201,7 +201,7 @@ kill:
return TCP_TW_SUCCESS;
}
}
- inet_twsk_schedule(tw, TCP_TIMEWAIT_LEN);
+ inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
if (tmp_opt.saw_tstamp) {
tcptw->tw_ts_recent = tmp_opt.rcv_tsval;
@@ -251,7 +251,7 @@ kill:
* Do not reschedule in the last case.
*/
if (paws_reject || th->ack)
- inet_twsk_schedule(tw, TCP_TIMEWAIT_LEN);
+ inet_twsk_reschedule(tw, TCP_TIMEWAIT_LEN);
return tcp_timewait_check_oow_rate_limit(
tw, skb, LINUX_MIB_TCPACKSKIPPEDTIMEWAIT);
@@ -322,9 +322,6 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
} while (0);
#endif
- /* Linkage updates. */
- __inet_twsk_hashdance(tw, sk, &tcp_hashinfo);
-
/* Get the TIME_WAIT timeout firing. */
if (timeo < rto)
timeo = rto;
@@ -338,6 +335,8 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
}
inet_twsk_schedule(tw, timeo);
+ /* Linkage updates. */
+ __inet_twsk_hashdance(tw, sk, &tcp_hashinfo);
inet_twsk_put(tw);
} else {
/* Sorry, if we're out of memory, just CLOSE this
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 53ce6cf55598..9e53dd9bfcad 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2893,6 +2893,7 @@ void tcp_send_active_reset(struct sock *sk, gfp_t priority)
skb_reserve(skb, MAX_TCP_HEADER);
tcp_init_nondata_skb(skb, tcp_acceptable_seq(sk),
TCPHDR_ACK | TCPHDR_RST);
+ skb_mstamp_get(&skb->skb_mstamp);
/* Send it off. */
if (tcp_transmit_skb(sk, skb, 0, priority))
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTFAILED);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index c0a15e7f359f..f7d1d5e19e95 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1024,7 +1024,8 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
if (netif_index_is_vrf(net, ipc.oif)) {
flowi4_init_output(fl4, ipc.oif, sk->sk_mark, tos,
RT_SCOPE_UNIVERSE, sk->sk_protocol,
- (flow_flags | FLOWI_FLAG_VRFSRC),
+ (flow_flags | FLOWI_FLAG_VRFSRC |
+ FLOWI_FLAG_SKIP_NH_OIF),
faddr, saddr, dport,
inet->inet_sport);
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 671011055ad5..0304d1680ca2 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -33,6 +33,8 @@ static struct dst_entry *__xfrm4_dst_lookup(struct net *net, struct flowi4 *fl4,
if (saddr)
fl4->saddr = saddr->a4;
+ fl4->flowi4_flags = FLOWI_FLAG_SKIP_NH_OIF;
+
rt = __ip_route_output_key(net, fl4);
if (!IS_ERR(rt))
return &rt->dst;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 759d28ad16b7..c8380f1876f1 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -5132,13 +5132,12 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
rt = addrconf_get_prefix_route(&ifp->peer_addr, 128,
ifp->idev->dev, 0, 0);
- if (rt && ip6_del_rt(rt))
- dst_free(&rt->dst);
+ if (rt)
+ ip6_del_rt(rt);
}
dst_hold(&ifp->rt->dst);
- if (ip6_del_rt(ifp->rt))
- dst_free(&ifp->rt->dst);
+ ip6_del_rt(ifp->rt);
rt_genid_bump_ipv6(net);
break;
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 418d9823692b..7d2e0023c72d 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -155,6 +155,11 @@ static void node_free(struct fib6_node *fn)
kmem_cache_free(fib6_node_kmem, fn);
}
+static void rt6_rcu_free(struct rt6_info *rt)
+{
+ call_rcu(&rt->dst.rcu_head, dst_rcu_free);
+}
+
static void rt6_free_pcpu(struct rt6_info *non_pcpu_rt)
{
int cpu;
@@ -169,7 +174,7 @@ static void rt6_free_pcpu(struct rt6_info *non_pcpu_rt)
ppcpu_rt = per_cpu_ptr(non_pcpu_rt->rt6i_pcpu, cpu);
pcpu_rt = *ppcpu_rt;
if (pcpu_rt) {
- dst_free(&pcpu_rt->dst);
+ rt6_rcu_free(pcpu_rt);
*ppcpu_rt = NULL;
}
}
@@ -181,7 +186,7 @@ static void rt6_release(struct rt6_info *rt)
{
if (atomic_dec_and_test(&rt->rt6i_ref)) {
rt6_free_pcpu(rt);
- dst_free(&rt->dst);
+ rt6_rcu_free(rt);
}
}
@@ -846,7 +851,7 @@ add:
*ins = rt;
rt->rt6i_node = fn;
atomic_inc(&rt->rt6i_ref);
- inet6_rt_notify(RTM_NEWROUTE, rt, info);
+ inet6_rt_notify(RTM_NEWROUTE, rt, info, 0);
info->nl_net->ipv6.rt6_stats->fib_rt_entries++;
if (!(fn->fn_flags & RTN_RTINFO)) {
@@ -872,7 +877,7 @@ add:
rt->rt6i_node = fn;
rt->dst.rt6_next = iter->dst.rt6_next;
atomic_inc(&rt->rt6i_ref);
- inet6_rt_notify(RTM_NEWROUTE, rt, info);
+ inet6_rt_notify(RTM_NEWROUTE, rt, info, NLM_F_REPLACE);
if (!(fn->fn_flags & RTN_RTINFO)) {
info->nl_net->ipv6.rt6_stats->fib_route_nodes++;
fn->fn_flags |= RTN_RTINFO;
@@ -933,6 +938,10 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt,
int replace_required = 0;
int sernum = fib6_new_sernum(info->nl_net);
+ if (WARN_ON_ONCE((rt->dst.flags & DST_NOCACHE) &&
+ !atomic_read(&rt->dst.__refcnt)))
+ return -EINVAL;
+
if (info->nlh) {
if (!(info->nlh->nlmsg_flags & NLM_F_CREATE))
allow_create = 0;
@@ -1025,6 +1034,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt,
fib6_start_gc(info->nl_net, rt);
if (!(rt->rt6i_flags & RTF_CACHE))
fib6_prune_clones(info->nl_net, pn);
+ rt->dst.flags &= ~DST_NOCACHE;
}
out:
@@ -1049,7 +1059,8 @@ out:
atomic_inc(&pn->leaf->rt6i_ref);
}
#endif
- dst_free(&rt->dst);
+ if (!(rt->dst.flags & DST_NOCACHE))
+ dst_free(&rt->dst);
}
return err;
@@ -1060,7 +1071,8 @@ out:
st_failure:
if (fn && !(fn->fn_flags & (RTN_RTINFO|RTN_ROOT)))
fib6_repair_tree(info->nl_net, fn);
- dst_free(&rt->dst);
+ if (!(rt->dst.flags & DST_NOCACHE))
+ dst_free(&rt->dst);
return err;
#endif
}
@@ -1410,7 +1422,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp,
fib6_purge_rt(rt, fn, net);
- inet6_rt_notify(RTM_DELROUTE, rt, info);
+ inet6_rt_notify(RTM_DELROUTE, rt, info, 0);
rt6_release(rt);
}
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 4038c694ec03..3c7b9310b33f 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -404,13 +404,13 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
struct ipv6_tlv_tnl_enc_lim *tel;
__u32 mtu;
case ICMPV6_DEST_UNREACH:
- net_warn_ratelimited("%s: Path to destination invalid or inactive!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Path to destination invalid or inactive!\n",
+ t->parms.name);
break;
case ICMPV6_TIME_EXCEED:
if (code == ICMPV6_EXC_HOPLIMIT) {
- net_warn_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
+ t->parms.name);
}
break;
case ICMPV6_PARAMPROB:
@@ -421,12 +421,12 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (teli && teli == be32_to_cpu(info) - 2) {
tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->data[teli];
if (tel->encap_limit == 0) {
- net_warn_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
+ t->parms.name);
}
} else {
- net_warn_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
+ t->parms.name);
}
break;
case ICMPV6_PKT_TOOBIG:
@@ -634,20 +634,20 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
}
if (!fl6->flowi6_mark)
- dst = ip6_tnl_dst_check(tunnel);
+ dst = ip6_tnl_dst_get(tunnel);
if (!dst) {
- ndst = ip6_route_output(net, NULL, fl6);
+ dst = ip6_route_output(net, NULL, fl6);
- if (ndst->error)
+ if (dst->error)
goto tx_err_link_failure;
- ndst = xfrm_lookup(net, ndst, flowi6_to_flowi(fl6), NULL, 0);
- if (IS_ERR(ndst)) {
- err = PTR_ERR(ndst);
- ndst = NULL;
+ dst = xfrm_lookup(net, dst, flowi6_to_flowi(fl6), NULL, 0);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
+ dst = NULL;
goto tx_err_link_failure;
}
- dst = ndst;
+ ndst = dst;
}
tdev = dst->dev;
@@ -702,12 +702,9 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
skb = new_skb;
}
- if (fl6->flowi6_mark) {
- skb_dst_set(skb, dst);
- ndst = NULL;
- } else {
- skb_dst_set_noref(skb, dst);
- }
+ if (!fl6->flowi6_mark && ndst)
+ ip6_tnl_dst_set(tunnel, ndst);
+ skb_dst_set(skb, dst);
proto = NEXTHDR_GRE;
if (encap_limit >= 0) {
@@ -762,14 +759,12 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
skb_set_inner_protocol(skb, protocol);
ip6tunnel_xmit(NULL, skb, dev);
- if (ndst)
- ip6_tnl_dst_store(tunnel, ndst);
return 0;
tx_err_link_failure:
stats->tx_carrier_errors++;
dst_link_failure(skb);
tx_err_dst_release:
- dst_release(ndst);
+ dst_release(dst);
return err;
}
@@ -1223,6 +1218,9 @@ static const struct net_device_ops ip6gre_netdev_ops = {
static void ip6gre_dev_free(struct net_device *dev)
{
+ struct ip6_tnl *t = netdev_priv(dev);
+
+ ip6_tnl_dst_destroy(t);
free_percpu(dev->tstats);
free_netdev(dev);
}
@@ -1245,9 +1243,10 @@ static void ip6gre_tunnel_setup(struct net_device *dev)
netif_keep_dst(dev);
}
-static int ip6gre_tunnel_init(struct net_device *dev)
+static int ip6gre_tunnel_init_common(struct net_device *dev)
{
struct ip6_tnl *tunnel;
+ int ret;
tunnel = netdev_priv(dev);
@@ -1255,16 +1254,37 @@ static int ip6gre_tunnel_init(struct net_device *dev)
tunnel->net = dev_net(dev);
strcpy(tunnel->parms.name, dev->name);
+ dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+ if (!dev->tstats)
+ return -ENOMEM;
+
+ ret = ip6_tnl_dst_init(tunnel);
+ if (ret) {
+ free_percpu(dev->tstats);
+ dev->tstats = NULL;
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ip6gre_tunnel_init(struct net_device *dev)
+{
+ struct ip6_tnl *tunnel;
+ int ret;
+
+ ret = ip6gre_tunnel_init_common(dev);
+ if (ret)
+ return ret;
+
+ tunnel = netdev_priv(dev);
+
memcpy(dev->dev_addr, &tunnel->parms.laddr, sizeof(struct in6_addr));
memcpy(dev->broadcast, &tunnel->parms.raddr, sizeof(struct in6_addr));
if (ipv6_addr_any(&tunnel->parms.raddr))
dev->header_ops = &ip6gre_header_ops;
- dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
- if (!dev->tstats)
- return -ENOMEM;
-
return 0;
}
@@ -1460,19 +1480,16 @@ static void ip6gre_netlink_parms(struct nlattr *data[],
static int ip6gre_tap_init(struct net_device *dev)
{
struct ip6_tnl *tunnel;
+ int ret;
- tunnel = netdev_priv(dev);
+ ret = ip6gre_tunnel_init_common(dev);
+ if (ret)
+ return ret;
- tunnel->dev = dev;
- tunnel->net = dev_net(dev);
- strcpy(tunnel->parms.name, dev->name);
+ tunnel = netdev_priv(dev);
ip6gre_tnl_link_config(tunnel, 1);
- dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
- if (!dev->tstats)
- return -ENOMEM;
-
return 0;
}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 60c565309d0a..a598fe2c0849 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -600,20 +600,22 @@ int ip6_fragment(struct sock *sk, struct sk_buff *skb,
frag_id = ipv6_select_ident(net, &ipv6_hdr(skb)->daddr,
&ipv6_hdr(skb)->saddr);
+ hroom = LL_RESERVED_SPACE(rt->dst.dev);
if (skb_has_frag_list(skb)) {
int first_len = skb_pagelen(skb);
struct sk_buff *frag2;
if (first_len - hlen > mtu ||
((first_len - hlen) & 7) ||
- skb_cloned(skb))
+ skb_cloned(skb) ||
+ skb_headroom(skb) < (hroom + sizeof(struct frag_hdr)))
goto slow_path;
skb_walk_frags(skb, frag) {
/* Correct geometry. */
if (frag->len > mtu ||
((frag->len & 7) && frag->next) ||
- skb_headroom(frag) < hlen)
+ skb_headroom(frag) < (hlen + hroom + sizeof(struct frag_hdr)))
goto slow_path_clean;
/* Partially cloned skb? */
@@ -630,8 +632,6 @@ int ip6_fragment(struct sock *sk, struct sk_buff *skb,
err = 0;
offset = 0;
- frag = skb_shinfo(skb)->frag_list;
- skb_frag_list_init(skb);
/* BUILD HEADER */
*prevhdr = NEXTHDR_FRAGMENT;
@@ -639,8 +639,11 @@ int ip6_fragment(struct sock *sk, struct sk_buff *skb,
if (!tmp_hdr) {
IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_FRAGFAILS);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto fail;
}
+ frag = skb_shinfo(skb)->frag_list;
+ skb_frag_list_init(skb);
__skb_pull(skb, hlen);
fh = (struct frag_hdr *)__skb_push(skb, sizeof(struct frag_hdr));
@@ -737,7 +740,6 @@ slow_path:
*/
*prevhdr = NEXTHDR_FRAGMENT;
- hroom = LL_RESERVED_SPACE(rt->dst.dev);
troom = rt->dst.dev->needed_tailroom;
/*
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index b0ab420612bc..eabffbb89795 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -126,36 +126,92 @@ static struct net_device_stats *ip6_get_stats(struct net_device *dev)
* Locking : hash tables are protected by RCU and RTNL
*/
-struct dst_entry *ip6_tnl_dst_check(struct ip6_tnl *t)
+static void ip6_tnl_per_cpu_dst_set(struct ip6_tnl_dst *idst,
+ struct dst_entry *dst)
{
- struct dst_entry *dst = t->dst_cache;
+ write_seqlock_bh(&idst->lock);
+ dst_release(rcu_dereference_protected(
+ idst->dst,
+ lockdep_is_held(&idst->lock.lock)));
+ if (dst) {
+ dst_hold(dst);
+ idst->cookie = rt6_get_cookie((struct rt6_info *)dst);
+ } else {
+ idst->cookie = 0;
+ }
+ rcu_assign_pointer(idst->dst, dst);
+ write_sequnlock_bh(&idst->lock);
+}
+
+struct dst_entry *ip6_tnl_dst_get(struct ip6_tnl *t)
+{
+ struct ip6_tnl_dst *idst;
+ struct dst_entry *dst;
+ unsigned int seq;
+ u32 cookie;
- if (dst && dst->obsolete &&
- !dst->ops->check(dst, t->dst_cookie)) {
- t->dst_cache = NULL;
+ idst = raw_cpu_ptr(t->dst_cache);
+
+ rcu_read_lock();
+ do {
+ seq = read_seqbegin(&idst->lock);
+ dst = rcu_dereference(idst->dst);
+ cookie = idst->cookie;
+ } while (read_seqretry(&idst->lock, seq));
+
+ if (dst && !atomic_inc_not_zero(&dst->__refcnt))
+ dst = NULL;
+ rcu_read_unlock();
+
+ if (dst && dst->obsolete && !dst->ops->check(dst, cookie)) {
+ ip6_tnl_per_cpu_dst_set(idst, NULL);
dst_release(dst);
- return NULL;
+ dst = NULL;
}
-
return dst;
}
-EXPORT_SYMBOL_GPL(ip6_tnl_dst_check);
+EXPORT_SYMBOL_GPL(ip6_tnl_dst_get);
void ip6_tnl_dst_reset(struct ip6_tnl *t)
{
- dst_release(t->dst_cache);
- t->dst_cache = NULL;
+ int i;
+
+ for_each_possible_cpu(i)
+ ip6_tnl_per_cpu_dst_set(raw_cpu_ptr(t->dst_cache), NULL);
}
EXPORT_SYMBOL_GPL(ip6_tnl_dst_reset);
-void ip6_tnl_dst_store(struct ip6_tnl *t, struct dst_entry *dst)
+void ip6_tnl_dst_set(struct ip6_tnl *t, struct dst_entry *dst)
+{
+ ip6_tnl_per_cpu_dst_set(raw_cpu_ptr(t->dst_cache), dst);
+
+}
+EXPORT_SYMBOL_GPL(ip6_tnl_dst_set);
+
+void ip6_tnl_dst_destroy(struct ip6_tnl *t)
{
- struct rt6_info *rt = (struct rt6_info *) dst;
- t->dst_cookie = rt6_get_cookie(rt);
- dst_release(t->dst_cache);
- t->dst_cache = dst;
+ if (!t->dst_cache)
+ return;
+
+ ip6_tnl_dst_reset(t);
+ free_percpu(t->dst_cache);
}
-EXPORT_SYMBOL_GPL(ip6_tnl_dst_store);
+EXPORT_SYMBOL_GPL(ip6_tnl_dst_destroy);
+
+int ip6_tnl_dst_init(struct ip6_tnl *t)
+{
+ int i;
+
+ t->dst_cache = alloc_percpu(struct ip6_tnl_dst);
+ if (!t->dst_cache)
+ return -ENOMEM;
+
+ for_each_possible_cpu(i)
+ seqlock_init(&per_cpu_ptr(t->dst_cache, i)->lock);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ip6_tnl_dst_init);
/**
* ip6_tnl_lookup - fetch tunnel matching the end-point addresses
@@ -271,6 +327,9 @@ ip6_tnl_unlink(struct ip6_tnl_net *ip6n, struct ip6_tnl *t)
static void ip6_dev_free(struct net_device *dev)
{
+ struct ip6_tnl *t = netdev_priv(dev);
+
+ ip6_tnl_dst_destroy(t);
free_percpu(dev->tstats);
free_netdev(dev);
}
@@ -510,14 +569,14 @@ ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
struct ipv6_tlv_tnl_enc_lim *tel;
__u32 mtu;
case ICMPV6_DEST_UNREACH:
- net_warn_ratelimited("%s: Path to destination invalid or inactive!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Path to destination invalid or inactive!\n",
+ t->parms.name);
rel_msg = 1;
break;
case ICMPV6_TIME_EXCEED:
if ((*code) == ICMPV6_EXC_HOPLIMIT) {
- net_warn_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
+ t->parms.name);
rel_msg = 1;
}
break;
@@ -529,13 +588,13 @@ ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
if (teli && teli == *info - 2) {
tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->data[teli];
if (tel->encap_limit == 0) {
- net_warn_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Too small encapsulation limit or routing loop in tunnel!\n",
+ t->parms.name);
rel_msg = 1;
}
} else {
- net_warn_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
- t->parms.name);
+ net_dbg_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
+ t->parms.name);
}
break;
case ICMPV6_PKT_TOOBIG:
@@ -1010,23 +1069,23 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
neigh_release(neigh);
} else if (!fl6->flowi6_mark)
- dst = ip6_tnl_dst_check(t);
+ dst = ip6_tnl_dst_get(t);
if (!ip6_tnl_xmit_ctl(t, &fl6->saddr, &fl6->daddr))
goto tx_err_link_failure;
if (!dst) {
- ndst = ip6_route_output(net, NULL, fl6);
+ dst = ip6_route_output(net, NULL, fl6);
- if (ndst->error)
+ if (dst->error)
goto tx_err_link_failure;
- ndst = xfrm_lookup(net, ndst, flowi6_to_flowi(fl6), NULL, 0);
- if (IS_ERR(ndst)) {
- err = PTR_ERR(ndst);
- ndst = NULL;
+ dst = xfrm_lookup(net, dst, flowi6_to_flowi(fl6), NULL, 0);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
+ dst = NULL;
goto tx_err_link_failure;
}
- dst = ndst;
+ ndst = dst;
}
tdev = dst->dev;
@@ -1072,12 +1131,11 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
consume_skb(skb);
skb = new_skb;
}
- if (fl6->flowi6_mark) {
- skb_dst_set(skb, dst);
- ndst = NULL;
- } else {
- skb_dst_set_noref(skb, dst);
- }
+
+ if (!fl6->flowi6_mark && ndst)
+ ip6_tnl_dst_set(t, ndst);
+ skb_dst_set(skb, dst);
+
skb->transport_header = skb->network_header;
proto = fl6->flowi6_proto;
@@ -1101,14 +1159,12 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
ipv6h->saddr = fl6->saddr;
ipv6h->daddr = fl6->daddr;
ip6tunnel_xmit(NULL, skb, dev);
- if (ndst)
- ip6_tnl_dst_store(t, ndst);
return 0;
tx_err_link_failure:
stats->tx_carrier_errors++;
dst_link_failure(skb);
tx_err_dst_release:
- dst_release(ndst);
+ dst_release(dst);
return err;
}
@@ -1573,12 +1629,21 @@ static inline int
ip6_tnl_dev_init_gen(struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
+ int ret;
t->dev = dev;
t->net = dev_net(dev);
dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
if (!dev->tstats)
return -ENOMEM;
+
+ ret = ip6_tnl_dst_init(t);
+ if (ret) {
+ free_percpu(dev->tstats);
+ dev->tstats = NULL;
+ return ret;
+ }
+
return 0;
}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 118f8fa1a809..6fbf6fdde7e7 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1298,8 +1298,7 @@ static void ip6_link_failure(struct sk_buff *skb)
if (rt) {
if (rt->rt6i_flags & RTF_CACHE) {
dst_hold(&rt->dst);
- if (ip6_del_rt(rt))
- dst_free(&rt->dst);
+ ip6_del_rt(rt);
} else if (rt->rt6i_node && (rt->rt6i_flags & RTF_DEFAULT)) {
rt->rt6i_node->fn_sernum = -1;
}
@@ -1862,9 +1861,11 @@ int ip6_route_info_create(struct fib6_config *cfg, struct rt6_info **rt_ret)
rt->dst.input = ip6_pkt_prohibit;
break;
case RTN_THROW:
+ case RTN_UNREACHABLE:
default:
rt->dst.error = (cfg->fc_type == RTN_THROW) ? -EAGAIN
- : -ENETUNREACH;
+ : (cfg->fc_type == RTN_UNREACHABLE)
+ ? -EHOSTUNREACH : -ENETUNREACH;
rt->dst.output = ip6_pkt_discard_out;
rt->dst.input = ip6_pkt_discard;
break;
@@ -2004,7 +2005,8 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
struct fib6_table *table;
struct net *net = dev_net(rt->dst.dev);
- if (rt == net->ipv6.ip6_null_entry) {
+ if (rt == net->ipv6.ip6_null_entry ||
+ rt->dst.flags & DST_NOCACHE) {
err = -ENOENT;
goto out;
}
@@ -2491,6 +2493,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
rt->rt6i_dst.addr = *addr;
rt->rt6i_dst.plen = 128;
rt->rt6i_table = fib6_get_table(net, RT6_TABLE_LOCAL);
+ rt->dst.flags |= DST_NOCACHE;
atomic_set(&rt->dst.__refcnt, 1);
@@ -3279,7 +3282,8 @@ errout:
return err;
}
-void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info,
+ unsigned int nlm_flags)
{
struct sk_buff *skb;
struct net *net = info->nl_net;
@@ -3294,7 +3298,7 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info)
goto errout;
err = rt6_fill_node(net, skb, rt, NULL, NULL, 0,
- event, info->portid, seq, 0, 0, 0);
+ event, info->portid, seq, 0, 0, nlm_flags);
if (err < 0) {
/* -EMSGSIZE implies BUG in rt6_nlmsg_size() */
WARN_ON(err == -EMSGSIZE);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 17b1fe961c5d..7a77a1470f25 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2474,6 +2474,7 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
bss_conf->cqm_rssi_thold = rssi_thold;
bss_conf->cqm_rssi_hyst = rssi_hyst;
+ sdata->u.mgd.last_cqm_event_signal = 0;
/* tell the driver upon association, unless already associated */
if (sdata->u.mgd.associated &&
@@ -2518,15 +2519,17 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
continue;
for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
- if (~sdata->rc_rateidx_mcs_mask[i][j])
+ if (~sdata->rc_rateidx_mcs_mask[i][j]) {
sdata->rc_has_mcs_mask[i] = true;
+ break;
+ }
+ }
- if (~sdata->rc_rateidx_vht_mcs_mask[i][j])
+ for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
+ if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
sdata->rc_has_vht_mcs_mask[i] = true;
-
- if (sdata->rc_has_mcs_mask[i] &&
- sdata->rc_has_vht_mcs_mask[i])
break;
+ }
}
}
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 675d12c69e32..a5d41dfa9f05 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -107,12 +107,17 @@ EXPORT_SYMBOL(nf_log_register);
void nf_log_unregister(struct nf_logger *logger)
{
+ const struct nf_logger *log;
int i;
mutex_lock(&nf_log_mutex);
- for (i = 0; i < NFPROTO_NUMPROTO; i++)
- RCU_INIT_POINTER(loggers[i][logger->type], NULL);
+ for (i = 0; i < NFPROTO_NUMPROTO; i++) {
+ log = nft_log_dereference(loggers[i][logger->type]);
+ if (log == logger)
+ RCU_INIT_POINTER(loggers[i][logger->type], NULL);
+ }
mutex_unlock(&nf_log_mutex);
+ synchronize_rcu();
}
EXPORT_SYMBOL(nf_log_unregister);
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 66def315eb56..9c8fab00164b 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -619,6 +619,13 @@ struct nft_xt {
static struct nft_expr_type nft_match_type;
+static bool nft_match_cmp(const struct xt_match *match,
+ const char *name, u32 rev, u32 family)
+{
+ return strcmp(match->name, name) == 0 && match->revision == rev &&
+ (match->family == NFPROTO_UNSPEC || match->family == family);
+}
+
static const struct nft_expr_ops *
nft_match_select_ops(const struct nft_ctx *ctx,
const struct nlattr * const tb[])
@@ -626,7 +633,7 @@ nft_match_select_ops(const struct nft_ctx *ctx,
struct nft_xt *nft_match;
struct xt_match *match;
char *mt_name;
- __u32 rev, family;
+ u32 rev, family;
if (tb[NFTA_MATCH_NAME] == NULL ||
tb[NFTA_MATCH_REV] == NULL ||
@@ -641,8 +648,7 @@ nft_match_select_ops(const struct nft_ctx *ctx,
list_for_each_entry(nft_match, &nft_match_list, head) {
struct xt_match *match = nft_match->ops.data;
- if (strcmp(match->name, mt_name) == 0 &&
- match->revision == rev && match->family == family) {
+ if (nft_match_cmp(match, mt_name, rev, family)) {
if (!try_module_get(match->me))
return ERR_PTR(-ENOENT);
@@ -693,6 +699,13 @@ static LIST_HEAD(nft_target_list);
static struct nft_expr_type nft_target_type;
+static bool nft_target_cmp(const struct xt_target *tg,
+ const char *name, u32 rev, u32 family)
+{
+ return strcmp(tg->name, name) == 0 && tg->revision == rev &&
+ (tg->family == NFPROTO_UNSPEC || tg->family == family);
+}
+
static const struct nft_expr_ops *
nft_target_select_ops(const struct nft_ctx *ctx,
const struct nlattr * const tb[])
@@ -700,7 +713,7 @@ nft_target_select_ops(const struct nft_ctx *ctx,
struct nft_xt *nft_target;
struct xt_target *target;
char *tg_name;
- __u32 rev, family;
+ u32 rev, family;
if (tb[NFTA_TARGET_NAME] == NULL ||
tb[NFTA_TARGET_REV] == NULL ||
@@ -715,8 +728,7 @@ nft_target_select_ops(const struct nft_ctx *ctx,
list_for_each_entry(nft_target, &nft_target_list, head) {
struct xt_target *target = nft_target->ops.data;
- if (strcmp(target->name, tg_name) == 0 &&
- target->revision == rev && target->family == family) {
+ if (nft_target_cmp(target, tg_name, rev, family)) {
if (!try_module_get(target->me))
return ERR_PTR(-ENOENT);
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 7f86d3b55060..8f060d7f9a0e 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -125,6 +125,24 @@ static inline u32 netlink_group_mask(u32 group)
return group ? 1 << (group - 1) : 0;
}
+static struct sk_buff *netlink_to_full_skb(const struct sk_buff *skb,
+ gfp_t gfp_mask)
+{
+ unsigned int len = skb_end_offset(skb);
+ struct sk_buff *new;
+
+ new = alloc_skb(len, gfp_mask);
+ if (new == NULL)
+ return NULL;
+
+ NETLINK_CB(new).portid = NETLINK_CB(skb).portid;
+ NETLINK_CB(new).dst_group = NETLINK_CB(skb).dst_group;
+ NETLINK_CB(new).creds = NETLINK_CB(skb).creds;
+
+ memcpy(skb_put(new, len), skb->data, len);
+ return new;
+}
+
int netlink_add_tap(struct netlink_tap *nt)
{
if (unlikely(nt->dev->type != ARPHRD_NETLINK))
@@ -206,7 +224,11 @@ static int __netlink_deliver_tap_skb(struct sk_buff *skb,
int ret = -ENOMEM;
dev_hold(dev);
- nskb = skb_clone(skb, GFP_ATOMIC);
+
+ if (netlink_skb_is_mmaped(skb) || is_vmalloc_addr(skb->head))
+ nskb = netlink_to_full_skb(skb, GFP_ATOMIC);
+ else
+ nskb = skb_clone(skb, GFP_ATOMIC);
if (nskb) {
nskb->dev = dev;
nskb->protocol = htons((u16) sk->sk_protocol);
@@ -279,11 +301,6 @@ static void netlink_rcv_wake(struct sock *sk)
}
#ifdef CONFIG_NETLINK_MMAP
-static bool netlink_skb_is_mmaped(const struct sk_buff *skb)
-{
- return NETLINK_CB(skb).flags & NETLINK_SKB_MMAPED;
-}
-
static bool netlink_rx_is_mmaped(struct sock *sk)
{
return nlk_sk(sk)->rx_ring.pg_vec != NULL;
@@ -846,7 +863,6 @@ static void netlink_ring_set_copied(struct sock *sk, struct sk_buff *skb)
}
#else /* CONFIG_NETLINK_MMAP */
-#define netlink_skb_is_mmaped(skb) false
#define netlink_rx_is_mmaped(sk) false
#define netlink_tx_is_mmaped(sk) false
#define netlink_mmap sock_no_mmap
@@ -1094,8 +1110,8 @@ static int netlink_insert(struct sock *sk, u32 portid)
lock_sock(sk);
- err = -EBUSY;
- if (nlk_sk(sk)->portid)
+ err = nlk_sk(sk)->portid == portid ? 0 : -EBUSY;
+ if (nlk_sk(sk)->bound)
goto err;
err = -ENOMEM;
@@ -1115,10 +1131,14 @@ static int netlink_insert(struct sock *sk, u32 portid)
err = -EOVERFLOW;
if (err == -EEXIST)
err = -EADDRINUSE;
- nlk_sk(sk)->portid = 0;
sock_put(sk);
+ goto err;
}
+ /* We need to ensure that the socket is hashed and visible. */
+ smp_wmb();
+ nlk_sk(sk)->bound = portid;
+
err:
release_sock(sk);
return err;
@@ -1503,6 +1523,7 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
struct sockaddr_nl *nladdr = (struct sockaddr_nl *)addr;
int err;
long unsigned int groups = nladdr->nl_groups;
+ bool bound;
if (addr_len < sizeof(struct sockaddr_nl))
return -EINVAL;
@@ -1519,9 +1540,14 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
return err;
}
- if (nlk->portid)
+ bound = nlk->bound;
+ if (bound) {
+ /* Ensure nlk->portid is up-to-date. */
+ smp_rmb();
+
if (nladdr->nl_pid != nlk->portid)
return -EINVAL;
+ }
if (nlk->netlink_bind && groups) {
int group;
@@ -1537,7 +1563,10 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
}
}
- if (!nlk->portid) {
+ /* No need for barriers here as we return to user-space without
+ * using any of the bound attributes.
+ */
+ if (!bound) {
err = nladdr->nl_pid ?
netlink_insert(sk, nladdr->nl_pid) :
netlink_autobind(sock);
@@ -1585,7 +1614,10 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr,
!netlink_allowed(sock, NL_CFG_F_NONROOT_SEND))
return -EPERM;
- if (!nlk->portid)
+ /* No need for barriers here as we return to user-space without
+ * using any of the bound attributes.
+ */
+ if (!nlk->bound)
err = netlink_autobind(sock);
if (err == 0) {
@@ -2426,10 +2458,13 @@ static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
dst_group = nlk->dst_group;
}
- if (!nlk->portid) {
+ if (!nlk->bound) {
err = netlink_autobind(sock);
if (err)
goto out;
+ } else {
+ /* Ensure nlk is hashed and visible. */
+ smp_rmb();
}
/* It's a really convoluted way for userland to ask for mmaped
diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h
index 89008405d6b4..14437d9b1965 100644
--- a/net/netlink/af_netlink.h
+++ b/net/netlink/af_netlink.h
@@ -35,6 +35,7 @@ struct netlink_sock {
unsigned long state;
size_t max_recvmsg_len;
wait_queue_head_t wait;
+ bool bound;
bool cb_running;
struct netlink_callback cb;
struct mutex *cb_mutex;
@@ -59,6 +60,15 @@ static inline struct netlink_sock *nlk_sk(struct sock *sk)
return container_of(sk, struct netlink_sock, sk);
}
+static inline bool netlink_skb_is_mmaped(const struct sk_buff *skb)
+{
+#ifdef CONFIG_NETLINK_MMAP
+ return NETLINK_CB(skb).flags & NETLINK_SKB_MMAPED;
+#else
+ return false;
+#endif /* CONFIG_NETLINK_MMAP */
+}
+
struct netlink_table {
struct rhashtable hash;
struct hlist_head mc_list;
diff --git a/net/openvswitch/Kconfig b/net/openvswitch/Kconfig
index 2a071f470d57..d143aa9f6654 100644
--- a/net/openvswitch/Kconfig
+++ b/net/openvswitch/Kconfig
@@ -5,7 +5,8 @@
config OPENVSWITCH
tristate "Open vSwitch"
depends on INET
- depends on (!NF_CONNTRACK || NF_CONNTRACK)
+ depends on !NF_CONNTRACK || \
+ (NF_CONNTRACK && (!NF_DEFRAG_IPV6 || NF_DEFRAG_IPV6))
select LIBCRC32C
select MPLS
select NET_MPLS_GSO
diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index aaf5cbd6d9ae..eb759e3a88ca 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -275,13 +275,15 @@ static int ovs_ct_helper(struct sk_buff *skb, u16 proto)
case NFPROTO_IPV6: {
u8 nexthdr = ipv6_hdr(skb)->nexthdr;
__be16 frag_off;
+ int ofs;
- protoff = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr),
- &nexthdr, &frag_off);
- if (protoff < 0 || (frag_off & htons(~0x7)) != 0) {
+ ofs = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &nexthdr,
+ &frag_off);
+ if (ofs < 0 || (frag_off & htons(~0x7)) != 0) {
pr_debug("proto header not found\n");
return NF_ACCEPT;
}
+ protoff = ofs;
break;
}
default:
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 2913594c5123..a75828091e21 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -951,7 +951,7 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
if (error)
goto err_kfree_flow;
- ovs_flow_mask_key(&new_flow->key, &key, &mask);
+ ovs_flow_mask_key(&new_flow->key, &key, true, &mask);
/* Extract flow identifier. */
error = ovs_nla_get_identifier(&new_flow->id, a[OVS_FLOW_ATTR_UFID],
@@ -1079,7 +1079,7 @@ static struct sw_flow_actions *get_flow_actions(struct net *net,
struct sw_flow_key masked_key;
int error;
- ovs_flow_mask_key(&masked_key, key, mask);
+ ovs_flow_mask_key(&masked_key, key, true, mask);
error = ovs_nla_copy_actions(net, a, &masked_key, &acts, log);
if (error) {
OVS_NLERR(log,
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index c92d6a262bc5..5c030a4d7338 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -57,6 +57,7 @@ struct ovs_len_tbl {
};
#define OVS_ATTR_NESTED -1
+#define OVS_ATTR_VARIABLE -2
static void update_range(struct sw_flow_match *match,
size_t offset, size_t size, bool is_mask)
@@ -304,6 +305,10 @@ size_t ovs_key_attr_size(void)
+ nla_total_size(28); /* OVS_KEY_ATTR_ND */
}
+static const struct ovs_len_tbl ovs_vxlan_ext_key_lens[OVS_VXLAN_EXT_MAX + 1] = {
+ [OVS_VXLAN_EXT_GBP] = { .len = sizeof(u32) },
+};
+
static const struct ovs_len_tbl ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
[OVS_TUNNEL_KEY_ATTR_ID] = { .len = sizeof(u64) },
[OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = { .len = sizeof(u32) },
@@ -315,8 +320,9 @@ static const struct ovs_len_tbl ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1]
[OVS_TUNNEL_KEY_ATTR_TP_SRC] = { .len = sizeof(u16) },
[OVS_TUNNEL_KEY_ATTR_TP_DST] = { .len = sizeof(u16) },
[OVS_TUNNEL_KEY_ATTR_OAM] = { .len = 0 },
- [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS] = { .len = OVS_ATTR_NESTED },
- [OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS] = { .len = OVS_ATTR_NESTED },
+ [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS] = { .len = OVS_ATTR_VARIABLE },
+ [OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS] = { .len = OVS_ATTR_NESTED,
+ .next = ovs_vxlan_ext_key_lens },
};
/* The size of the argument for each %OVS_KEY_ATTR_* Netlink attribute. */
@@ -349,6 +355,13 @@ static const struct ovs_len_tbl ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
[OVS_KEY_ATTR_CT_LABEL] = { .len = sizeof(struct ovs_key_ct_label) },
};
+static bool check_attr_len(unsigned int attr_len, unsigned int expected_len)
+{
+ return expected_len == attr_len ||
+ expected_len == OVS_ATTR_NESTED ||
+ expected_len == OVS_ATTR_VARIABLE;
+}
+
static bool is_all_zero(const u8 *fp, size_t size)
{
int i;
@@ -388,7 +401,7 @@ static int __parse_flow_nlattrs(const struct nlattr *attr,
}
expected_len = ovs_key_lens[type].len;
- if (nla_len(nla) != expected_len && expected_len != OVS_ATTR_NESTED) {
+ if (!check_attr_len(nla_len(nla), expected_len)) {
OVS_NLERR(log, "Key %d has unexpected len %d expected %d",
type, nla_len(nla), expected_len);
return -EINVAL;
@@ -473,29 +486,50 @@ static int genev_tun_opt_from_nlattr(const struct nlattr *a,
return 0;
}
-static const struct nla_policy vxlan_opt_policy[OVS_VXLAN_EXT_MAX + 1] = {
- [OVS_VXLAN_EXT_GBP] = { .type = NLA_U32 },
-};
-
-static int vxlan_tun_opt_from_nlattr(const struct nlattr *a,
+static int vxlan_tun_opt_from_nlattr(const struct nlattr *attr,
struct sw_flow_match *match, bool is_mask,
bool log)
{
- struct nlattr *tb[OVS_VXLAN_EXT_MAX+1];
+ struct nlattr *a;
+ int rem;
unsigned long opt_key_offset;
struct vxlan_metadata opts;
- int err;
BUILD_BUG_ON(sizeof(opts) > sizeof(match->key->tun_opts));
- err = nla_parse_nested(tb, OVS_VXLAN_EXT_MAX, a, vxlan_opt_policy);
- if (err < 0)
- return err;
-
memset(&opts, 0, sizeof(opts));
+ nla_for_each_nested(a, attr, rem) {
+ int type = nla_type(a);
- if (tb[OVS_VXLAN_EXT_GBP])
- opts.gbp = nla_get_u32(tb[OVS_VXLAN_EXT_GBP]);
+ if (type > OVS_VXLAN_EXT_MAX) {
+ OVS_NLERR(log, "VXLAN extension %d out of range max %d",
+ type, OVS_VXLAN_EXT_MAX);
+ return -EINVAL;
+ }
+
+ if (!check_attr_len(nla_len(a),
+ ovs_vxlan_ext_key_lens[type].len)) {
+ OVS_NLERR(log, "VXLAN extension %d has unexpected len %d expected %d",
+ type, nla_len(a),
+ ovs_vxlan_ext_key_lens[type].len);
+ return -EINVAL;
+ }
+
+ switch (type) {
+ case OVS_VXLAN_EXT_GBP:
+ opts.gbp = nla_get_u32(a);
+ break;
+ default:
+ OVS_NLERR(log, "Unknown VXLAN extension attribute %d",
+ type);
+ return -EINVAL;
+ }
+ }
+ if (rem) {
+ OVS_NLERR(log, "VXLAN extension message has %d unknown bytes.",
+ rem);
+ return -EINVAL;
+ }
if (!is_mask)
SW_FLOW_KEY_PUT(match, tun_opts_len, sizeof(opts), false);
@@ -528,8 +562,8 @@ static int ipv4_tun_from_nlattr(const struct nlattr *attr,
return -EINVAL;
}
- if (ovs_tunnel_key_lens[type].len != nla_len(a) &&
- ovs_tunnel_key_lens[type].len != OVS_ATTR_NESTED) {
+ if (!check_attr_len(nla_len(a),
+ ovs_tunnel_key_lens[type].len)) {
OVS_NLERR(log, "Tunnel attr %d has unexpected len %d expected %d",
type, nla_len(a), ovs_tunnel_key_lens[type].len);
return -EINVAL;
@@ -1052,10 +1086,13 @@ static void nlattr_set(struct nlattr *attr, u8 val,
/* The nlattr stream should already have been validated */
nla_for_each_nested(nla, attr, rem) {
- if (tbl && tbl[nla_type(nla)].len == OVS_ATTR_NESTED)
- nlattr_set(nla, val, tbl[nla_type(nla)].next);
- else
+ if (tbl[nla_type(nla)].len == OVS_ATTR_NESTED) {
+ if (tbl[nla_type(nla)].next)
+ tbl = tbl[nla_type(nla)].next;
+ nlattr_set(nla, val, tbl);
+ } else {
memset(nla_data(nla), val, nla_len(nla));
+ }
}
}
@@ -1922,8 +1959,7 @@ static int validate_set(const struct nlattr *a,
key_len /= 2;
if (key_type > OVS_KEY_ATTR_MAX ||
- (ovs_key_lens[key_type].len != key_len &&
- ovs_key_lens[key_type].len != OVS_ATTR_NESTED))
+ !check_attr_len(key_len, ovs_key_lens[key_type].len))
return -EINVAL;
if (masked && !validate_masked(nla_data(ovs_key), key_len))
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index d22d8e948d0f..f2ea83ba4763 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -57,20 +57,21 @@ static u16 range_n_bytes(const struct sw_flow_key_range *range)
}
void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src,
- const struct sw_flow_mask *mask)
+ bool full, const struct sw_flow_mask *mask)
{
- const long *m = (const long *)((const u8 *)&mask->key +
- mask->range.start);
- const long *s = (const long *)((const u8 *)src +
- mask->range.start);
- long *d = (long *)((u8 *)dst + mask->range.start);
+ int start = full ? 0 : mask->range.start;
+ int len = full ? sizeof *dst : range_n_bytes(&mask->range);
+ const long *m = (const long *)((const u8 *)&mask->key + start);
+ const long *s = (const long *)((const u8 *)src + start);
+ long *d = (long *)((u8 *)dst + start);
int i;
- /* The memory outside of the 'mask->range' are not set since
- * further operations on 'dst' only uses contents within
- * 'mask->range'.
+ /* If 'full' is true then all of 'dst' is fully initialized. Otherwise,
+ * if 'full' is false the memory outside of the 'mask->range' is left
+ * uninitialized. This can be used as an optimization when further
+ * operations on 'dst' only use contents within 'mask->range'.
*/
- for (i = 0; i < range_n_bytes(&mask->range); i += sizeof(long))
+ for (i = 0; i < len; i += sizeof(long))
*d++ = *s++ & *m++;
}
@@ -475,7 +476,7 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti,
u32 hash;
struct sw_flow_key masked_key;
- ovs_flow_mask_key(&masked_key, unmasked, mask);
+ ovs_flow_mask_key(&masked_key, unmasked, false, mask);
hash = flow_hash(&masked_key, &mask->range);
head = find_bucket(ti, hash);
hlist_for_each_entry_rcu(flow, head, flow_table.node[ti->node_ver]) {
diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h
index 616eda10d955..2dd9900f533d 100644
--- a/net/openvswitch/flow_table.h
+++ b/net/openvswitch/flow_table.h
@@ -86,5 +86,5 @@ struct sw_flow *ovs_flow_tbl_lookup_ufid(struct flow_table *,
bool ovs_flow_cmp(const struct sw_flow *, const struct sw_flow_match *);
void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src,
- const struct sw_flow_mask *mask);
+ bool full, const struct sw_flow_mask *mask);
#endif /* flow_table.h */
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 7b8e39a22387..aa4b15c35884 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -230,6 +230,8 @@ struct packet_skb_cb {
} sa;
};
+#define vio_le() virtio_legacy_is_little_endian()
+
#define PACKET_SKB_CB(__skb) ((struct packet_skb_cb *)((__skb)->cb))
#define GET_PBDQC_FROM_RB(x) ((struct tpacket_kbdq_core *)(&(x)->prb_bdqc))
@@ -2680,15 +2682,15 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
goto out_unlock;
if ((vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) &&
- (__virtio16_to_cpu(false, vnet_hdr.csum_start) +
- __virtio16_to_cpu(false, vnet_hdr.csum_offset) + 2 >
- __virtio16_to_cpu(false, vnet_hdr.hdr_len)))
- vnet_hdr.hdr_len = __cpu_to_virtio16(false,
- __virtio16_to_cpu(false, vnet_hdr.csum_start) +
- __virtio16_to_cpu(false, vnet_hdr.csum_offset) + 2);
+ (__virtio16_to_cpu(vio_le(), vnet_hdr.csum_start) +
+ __virtio16_to_cpu(vio_le(), vnet_hdr.csum_offset) + 2 >
+ __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len)))
+ vnet_hdr.hdr_len = __cpu_to_virtio16(vio_le(),
+ __virtio16_to_cpu(vio_le(), vnet_hdr.csum_start) +
+ __virtio16_to_cpu(vio_le(), vnet_hdr.csum_offset) + 2);
err = -EINVAL;
- if (__virtio16_to_cpu(false, vnet_hdr.hdr_len) > len)
+ if (__virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len) > len)
goto out_unlock;
if (vnet_hdr.gso_type != VIRTIO_NET_HDR_GSO_NONE) {
@@ -2731,7 +2733,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
hlen = LL_RESERVED_SPACE(dev);
tlen = dev->needed_tailroom;
skb = packet_alloc_skb(sk, hlen + tlen, hlen, len,
- __virtio16_to_cpu(false, vnet_hdr.hdr_len),
+ __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len),
msg->msg_flags & MSG_DONTWAIT, &err);
if (skb == NULL)
goto out_unlock;
@@ -2778,8 +2780,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
if (po->has_vnet_hdr) {
if (vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {
- u16 s = __virtio16_to_cpu(false, vnet_hdr.csum_start);
- u16 o = __virtio16_to_cpu(false, vnet_hdr.csum_offset);
+ u16 s = __virtio16_to_cpu(vio_le(), vnet_hdr.csum_start);
+ u16 o = __virtio16_to_cpu(vio_le(), vnet_hdr.csum_offset);
if (!skb_partial_csum_set(skb, s, o)) {
err = -EINVAL;
goto out_free;
@@ -2787,7 +2789,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
}
skb_shinfo(skb)->gso_size =
- __virtio16_to_cpu(false, vnet_hdr.gso_size);
+ __virtio16_to_cpu(vio_le(), vnet_hdr.gso_size);
skb_shinfo(skb)->gso_type = gso_type;
/* Header must be checked, and gso_segs computed. */
@@ -3161,9 +3163,9 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
/* This is a hint as to how much should be linear. */
vnet_hdr.hdr_len =
- __cpu_to_virtio16(false, skb_headlen(skb));
+ __cpu_to_virtio16(vio_le(), skb_headlen(skb));
vnet_hdr.gso_size =
- __cpu_to_virtio16(false, sinfo->gso_size);
+ __cpu_to_virtio16(vio_le(), sinfo->gso_size);
if (sinfo->gso_type & SKB_GSO_TCPV4)
vnet_hdr.gso_type = VIRTIO_NET_HDR_GSO_TCPV4;
else if (sinfo->gso_type & SKB_GSO_TCPV6)
@@ -3181,9 +3183,9 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
if (skb->ip_summed == CHECKSUM_PARTIAL) {
vnet_hdr.flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
- vnet_hdr.csum_start = __cpu_to_virtio16(false,
+ vnet_hdr.csum_start = __cpu_to_virtio16(vio_le(),
skb_checksum_start_offset(skb));
- vnet_hdr.csum_offset = __cpu_to_virtio16(false,
+ vnet_hdr.csum_offset = __cpu_to_virtio16(vio_le(),
skb->csum_offset);
} else if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
vnet_hdr.flags = VIRTIO_NET_HDR_F_DATA_VALID;
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index 715e01e5910a..f23a3b68bba6 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -33,7 +33,6 @@
struct fw_head {
u32 mask;
- bool mask_set;
struct fw_filter __rcu *ht[HTSIZE];
struct rcu_head rcu;
};
@@ -84,7 +83,7 @@ static int fw_classify(struct sk_buff *skb, const struct tcf_proto *tp,
}
}
} else {
- /* old method */
+ /* Old method: classify the packet using its skb mark. */
if (id && (TC_H_MAJ(id) == 0 ||
!(TC_H_MAJ(id ^ tp->q->handle)))) {
res->classid = id;
@@ -114,14 +113,9 @@ static unsigned long fw_get(struct tcf_proto *tp, u32 handle)
static int fw_init(struct tcf_proto *tp)
{
- struct fw_head *head;
-
- head = kzalloc(sizeof(struct fw_head), GFP_KERNEL);
- if (head == NULL)
- return -ENOBUFS;
-
- head->mask_set = false;
- rcu_assign_pointer(tp->root, head);
+ /* We don't allocate fw_head here, because in the old method
+ * we don't need it at all.
+ */
return 0;
}
@@ -252,7 +246,7 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,
int err;
if (!opt)
- return handle ? -EINVAL : 0;
+ return handle ? -EINVAL : 0; /* Succeed if it is old method. */
err = nla_parse_nested(tb, TCA_FW_MAX, opt, fw_policy);
if (err < 0)
@@ -302,11 +296,17 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,
if (!handle)
return -EINVAL;
- if (!head->mask_set) {
- head->mask = 0xFFFFFFFF;
+ if (!head) {
+ u32 mask = 0xFFFFFFFF;
if (tb[TCA_FW_MASK])
- head->mask = nla_get_u32(tb[TCA_FW_MASK]);
- head->mask_set = true;
+ mask = nla_get_u32(tb[TCA_FW_MASK]);
+
+ head = kzalloc(sizeof(*head), GFP_KERNEL);
+ if (!head)
+ return -ENOBUFS;
+ head->mask = mask;
+
+ rcu_assign_pointer(tp->root, head);
}
f = kzalloc(sizeof(struct fw_filter), GFP_KERNEL);
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index b7143337e4fa..3d9ea9a48289 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1186,7 +1186,7 @@ static void sctp_v4_del_protocol(void)
unregister_inetaddr_notifier(&sctp_inetaddr_notifier);
}
-static int __net_init sctp_net_init(struct net *net)
+static int __net_init sctp_defaults_init(struct net *net)
{
int status;
@@ -1279,12 +1279,6 @@ static int __net_init sctp_net_init(struct net *net)
sctp_dbg_objcnt_init(net);
- /* Initialize the control inode/socket for handling OOTB packets. */
- if ((status = sctp_ctl_sock_init(net))) {
- pr_err("Failed to initialize the SCTP control sock\n");
- goto err_ctl_sock_init;
- }
-
/* Initialize the local address list. */
INIT_LIST_HEAD(&net->sctp.local_addr_list);
spin_lock_init(&net->sctp.local_addr_lock);
@@ -1300,9 +1294,6 @@ static int __net_init sctp_net_init(struct net *net)
return 0;
-err_ctl_sock_init:
- sctp_dbg_objcnt_exit(net);
- sctp_proc_exit(net);
err_init_proc:
cleanup_sctp_mibs(net);
err_init_mibs:
@@ -1311,15 +1302,12 @@ err_sysctl_register:
return status;
}
-static void __net_exit sctp_net_exit(struct net *net)
+static void __net_exit sctp_defaults_exit(struct net *net)
{
/* Free the local address list */
sctp_free_addr_wq(net);
sctp_free_local_addr_list(net);
- /* Free the control endpoint. */
- inet_ctl_sock_destroy(net->sctp.ctl_sock);
-
sctp_dbg_objcnt_exit(net);
sctp_proc_exit(net);
@@ -1327,9 +1315,32 @@ static void __net_exit sctp_net_exit(struct net *net)
sctp_sysctl_net_unregister(net);
}
-static struct pernet_operations sctp_net_ops = {
- .init = sctp_net_init,
- .exit = sctp_net_exit,
+static struct pernet_operations sctp_defaults_ops = {
+ .init = sctp_defaults_init,
+ .exit = sctp_defaults_exit,
+};
+
+static int __net_init sctp_ctrlsock_init(struct net *net)
+{
+ int status;
+
+ /* Initialize the control inode/socket for handling OOTB packets. */
+ status = sctp_ctl_sock_init(net);
+ if (status)
+ pr_err("Failed to initialize the SCTP control sock\n");
+
+ return status;
+}
+
+static void __net_init sctp_ctrlsock_exit(struct net *net)
+{
+ /* Free the control endpoint. */
+ inet_ctl_sock_destroy(net->sctp.ctl_sock);
+}
+
+static struct pernet_operations sctp_ctrlsock_ops = {
+ .init = sctp_ctrlsock_init,
+ .exit = sctp_ctrlsock_exit,
};
/* Initialize the universe into something sensible. */
@@ -1462,8 +1473,11 @@ static __init int sctp_init(void)
sctp_v4_pf_init();
sctp_v6_pf_init();
- status = sctp_v4_protosw_init();
+ status = register_pernet_subsys(&sctp_defaults_ops);
+ if (status)
+ goto err_register_defaults;
+ status = sctp_v4_protosw_init();
if (status)
goto err_protosw_init;
@@ -1471,9 +1485,9 @@ static __init int sctp_init(void)
if (status)
goto err_v6_protosw_init;
- status = register_pernet_subsys(&sctp_net_ops);
+ status = register_pernet_subsys(&sctp_ctrlsock_ops);
if (status)
- goto err_register_pernet_subsys;
+ goto err_register_ctrlsock;
status = sctp_v4_add_protocol();
if (status)
@@ -1489,12 +1503,14 @@ out:
err_v6_add_protocol:
sctp_v4_del_protocol();
err_add_protocol:
- unregister_pernet_subsys(&sctp_net_ops);
-err_register_pernet_subsys:
+ unregister_pernet_subsys(&sctp_ctrlsock_ops);
+err_register_ctrlsock:
sctp_v6_protosw_exit();
err_v6_protosw_init:
sctp_v4_protosw_exit();
err_protosw_init:
+ unregister_pernet_subsys(&sctp_defaults_ops);
+err_register_defaults:
sctp_v4_pf_exit();
sctp_v6_pf_exit();
sctp_sysctl_unregister();
@@ -1527,12 +1543,14 @@ static __exit void sctp_exit(void)
sctp_v6_del_protocol();
sctp_v4_del_protocol();
- unregister_pernet_subsys(&sctp_net_ops);
+ unregister_pernet_subsys(&sctp_ctrlsock_ops);
/* Free protosw registrations */
sctp_v6_protosw_exit();
sctp_v4_protosw_exit();
+ unregister_pernet_subsys(&sctp_defaults_ops);
+
/* Unregister with socket layer. */
sctp_v6_pf_exit();
sctp_v4_pf_exit();
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index b140c092d226..f14f24ee9983 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -297,7 +297,7 @@ static int rpc_complete_task(struct rpc_task *task)
clear_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
ret = atomic_dec_and_test(&task->tk_count);
if (waitqueue_active(wq))
- __wake_up_locked_key(wq, TASK_NORMAL, 1, &k);
+ __wake_up_locked_key(wq, TASK_NORMAL, &k);
spin_unlock_irqrestore(&wq->lock, flags);
return ret;
}
@@ -1092,14 +1092,10 @@ void
rpc_destroy_mempool(void)
{
rpciod_stop();
- if (rpc_buffer_mempool)
- mempool_destroy(rpc_buffer_mempool);
- if (rpc_task_mempool)
- mempool_destroy(rpc_task_mempool);
- if (rpc_task_slabp)
- kmem_cache_destroy(rpc_task_slabp);
- if (rpc_buffer_slabp)
- kmem_cache_destroy(rpc_buffer_slabp);
+ mempool_destroy(rpc_buffer_mempool);
+ mempool_destroy(rpc_task_mempool);
+ kmem_cache_destroy(rpc_task_slabp);
+ kmem_cache_destroy(rpc_buffer_slabp);
rpc_destroy_wait_queue(&delay_queue);
}
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index ab5dd621ae0c..2e98f4a243e5 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -614,6 +614,7 @@ static void xprt_autoclose(struct work_struct *work)
clear_bit(XPRT_CLOSE_WAIT, &xprt->state);
xprt->ops->close(xprt);
xprt_release_write(xprt, NULL);
+ wake_up_bit(&xprt->state, XPRT_LOCKED);
}
/**
@@ -723,6 +724,7 @@ void xprt_unlock_connect(struct rpc_xprt *xprt, void *cookie)
xprt->ops->release_xprt(xprt, NULL);
out:
spin_unlock_bh(&xprt->transport_lock);
+ wake_up_bit(&xprt->state, XPRT_LOCKED);
}
/**
@@ -1394,6 +1396,10 @@ out:
static void xprt_destroy(struct rpc_xprt *xprt)
{
dprintk("RPC: destroying transport %p\n", xprt);
+
+ /* Exclude transport connect/disconnect handlers */
+ wait_on_bit_lock(&xprt->state, XPRT_LOCKED, TASK_UNINTERRUPTIBLE);
+
del_timer_sync(&xprt->timer);
rpc_xprt_debugfs_unregister(xprt);
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 7be90bc1a7c2..1a85e0ed0b48 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -777,7 +777,6 @@ static void xs_sock_mark_closed(struct rpc_xprt *xprt)
xs_sock_reset_connection_flags(xprt);
/* Mark transport as closed and wake up all pending tasks */
xprt_disconnect_done(xprt);
- xprt_force_disconnect(xprt);
}
/**
@@ -881,8 +880,11 @@ static void xs_xprt_free(struct rpc_xprt *xprt)
*/
static void xs_destroy(struct rpc_xprt *xprt)
{
+ struct sock_xprt *transport = container_of(xprt,
+ struct sock_xprt, xprt);
dprintk("RPC: xs_destroy xprt %p\n", xprt);
+ cancel_delayed_work_sync(&transport->connect_worker);
xs_close(xprt);
xs_xprt_free(xprt);
module_put(THIS_MODULE);
@@ -1435,6 +1437,7 @@ out:
static void xs_tcp_state_change(struct sock *sk)
{
struct rpc_xprt *xprt;
+ struct sock_xprt *transport;
read_lock_bh(&sk->sk_callback_lock);
if (!(xprt = xprt_from_sock(sk)))
@@ -1446,13 +1449,12 @@ static void xs_tcp_state_change(struct sock *sk)
sock_flag(sk, SOCK_ZAPPED),
sk->sk_shutdown);
+ transport = container_of(xprt, struct sock_xprt, xprt);
trace_rpc_socket_state_change(xprt, sk->sk_socket);
switch (sk->sk_state) {
case TCP_ESTABLISHED:
spin_lock(&xprt->transport_lock);
if (!xprt_test_and_set_connected(xprt)) {
- struct sock_xprt *transport = container_of(xprt,
- struct sock_xprt, xprt);
/* Reset TCP record info */
transport->tcp_offset = 0;
@@ -1461,6 +1463,8 @@ static void xs_tcp_state_change(struct sock *sk)
transport->tcp_flags =
TCP_RCV_COPY_FRAGHDR | TCP_RCV_COPY_XID;
xprt->connect_cookie++;
+ clear_bit(XPRT_SOCK_CONNECTING, &transport->sock_state);
+ xprt_clear_connecting(xprt);
xprt_wake_pending_tasks(xprt, -EAGAIN);
}
@@ -1496,6 +1500,9 @@ static void xs_tcp_state_change(struct sock *sk)
smp_mb__after_atomic();
break;
case TCP_CLOSE:
+ if (test_and_clear_bit(XPRT_SOCK_CONNECTING,
+ &transport->sock_state))
+ xprt_clear_connecting(xprt);
xs_sock_mark_closed(xprt);
}
out:
@@ -2179,6 +2186,7 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
/* Tell the socket layer to start connecting... */
xprt->stat.connect_count++;
xprt->stat.connect_start = jiffies;
+ set_bit(XPRT_SOCK_CONNECTING, &transport->sock_state);
ret = kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK);
switch (ret) {
case 0:
@@ -2240,7 +2248,6 @@ static void xs_tcp_setup_socket(struct work_struct *work)
case -EINPROGRESS:
case -EALREADY:
xprt_unlock_connect(xprt, transport);
- xprt_clear_connecting(xprt);
return;
case -EINVAL:
/* Happens, for instance, if the user specified a link
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 562c926a51cc..c5ac436235e0 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -539,6 +539,7 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err)
*err = -TIPC_ERR_NO_NAME;
if (skb_linearize(skb))
return false;
+ msg = buf_msg(skb);
if (msg_reroute_cnt(msg))
return false;
dnode = addr_domain(net, msg_lookup_scope(msg));