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-rw-r--r--net/8021q/vlan_core.c4
-rw-r--r--net/9p/client.c2
-rw-r--r--net/Kconfig8
-rw-r--r--net/core/dev.c15
-rw-r--r--net/core/net_namespace.c2
-rw-r--r--net/core/skbuff.c70
-rw-r--r--net/ipv6/af_inet6.c7
-rw-r--r--net/key/af_key.c1
-rw-r--r--net/mac80211/mlme.c4
-rw-r--r--net/mac80211/sta_info.h1
-rw-r--r--net/mac80211/tx.c6
-rw-r--r--net/netfilter/nf_conntrack_netlink.c3
-rw-r--r--net/sctp/input.c13
-rw-r--r--net/sctp/output.c7
-rw-r--r--net/sctp/outqueue.c3
-rw-r--r--net/sunrpc/Kconfig79
-rw-r--r--net/wireless/reg.c128
-rw-r--r--net/xfrm/xfrm_user.c11
18 files changed, 285 insertions, 79 deletions
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 6c13239..e9db889 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -62,13 +62,13 @@ struct net_device *vlan_dev_real_dev(const struct net_device *dev)
{
return vlan_dev_info(dev)->real_dev;
}
-EXPORT_SYMBOL_GPL(vlan_dev_real_dev);
+EXPORT_SYMBOL(vlan_dev_real_dev);
u16 vlan_dev_vlan_id(const struct net_device *dev)
{
return vlan_dev_info(dev)->vlan_id;
}
-EXPORT_SYMBOL_GPL(vlan_dev_vlan_id);
+EXPORT_SYMBOL(vlan_dev_vlan_id);
static int vlan_gro_common(struct napi_struct *napi, struct vlan_group *grp,
unsigned int vlan_tci, struct sk_buff *skb)
diff --git a/net/9p/client.c b/net/9p/client.c
index 821f1ec..1eb580c 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -618,7 +618,7 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt)
return ERR_PTR(-ENOMEM);
ret = p9_idpool_get(clnt->fidpool);
- if (fid->fid < 0) {
+ if (ret < 0) {
ret = -ENOSPC;
goto error;
}
diff --git a/net/Kconfig b/net/Kconfig
index bf27760..cdb8fde 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -24,14 +24,6 @@ if NET
menu "Networking options"
-config NET_NS
- bool "Network namespace support"
- default n
- depends on EXPERIMENTAL && NAMESPACES
- help
- Allow user space to create what appear to be multiple instances
- of the network stack.
-
config COMPAT_NET_DEV_OPS
def_bool y
diff --git a/net/core/dev.c b/net/core/dev.c
index 8d67597..5379b0c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1534,7 +1534,19 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
skb->mac_len = skb->network_header - skb->mac_header;
__skb_pull(skb, skb->mac_len);
- if (WARN_ON(skb->ip_summed != CHECKSUM_PARTIAL)) {
+ if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
+ struct net_device *dev = skb->dev;
+ struct ethtool_drvinfo info = {};
+
+ if (dev && dev->ethtool_ops && dev->ethtool_ops->get_drvinfo)
+ dev->ethtool_ops->get_drvinfo(dev, &info);
+
+ WARN(1, "%s: caps=(0x%lx, 0x%lx) len=%d data_len=%d "
+ "ip_summed=%d",
+ info.driver, dev ? dev->features : 0L,
+ skb->sk ? skb->sk->sk_route_caps : 0L,
+ skb->len, skb->data_len, skb->ip_summed);
+
if (skb_header_cloned(skb) &&
(err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
return ERR_PTR(err);
@@ -2524,6 +2536,7 @@ struct sk_buff *napi_fraginfo_skb(struct napi_struct *napi,
if (!pskb_may_pull(skb, ETH_HLEN)) {
napi_reuse_skb(napi, skb);
+ skb = NULL;
goto out;
}
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 55cffad..55151fa 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -341,8 +341,8 @@ again:
rv = register_pernet_operations(first_device, ops);
if (rv < 0)
ida_remove(&net_generic_ids, *id);
- mutex_unlock(&net_mutex);
out:
+ mutex_unlock(&net_mutex);
return rv;
}
EXPORT_SYMBOL_GPL(register_pernet_gen_subsys);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 65eac77..2e5f2ca 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -73,17 +73,13 @@ static struct kmem_cache *skbuff_fclone_cache __read_mostly;
static void sock_pipe_buf_release(struct pipe_inode_info *pipe,
struct pipe_buffer *buf)
{
- struct sk_buff *skb = (struct sk_buff *) buf->private;
-
- kfree_skb(skb);
+ put_page(buf->page);
}
static void sock_pipe_buf_get(struct pipe_inode_info *pipe,
struct pipe_buffer *buf)
{
- struct sk_buff *skb = (struct sk_buff *) buf->private;
-
- skb_get(skb);
+ get_page(buf->page);
}
static int sock_pipe_buf_steal(struct pipe_inode_info *pipe,
@@ -1334,9 +1330,19 @@ fault:
*/
static void sock_spd_release(struct splice_pipe_desc *spd, unsigned int i)
{
- struct sk_buff *skb = (struct sk_buff *) spd->partial[i].private;
+ put_page(spd->pages[i]);
+}
- kfree_skb(skb);
+static inline struct page *linear_to_page(struct page *page, unsigned int len,
+ unsigned int offset)
+{
+ struct page *p = alloc_pages(GFP_KERNEL, 0);
+
+ if (!p)
+ return NULL;
+ memcpy(page_address(p) + offset, page_address(page) + offset, len);
+
+ return p;
}
/*
@@ -1344,16 +1350,23 @@ static void sock_spd_release(struct splice_pipe_desc *spd, unsigned int i)
*/
static inline int spd_fill_page(struct splice_pipe_desc *spd, struct page *page,
unsigned int len, unsigned int offset,
- struct sk_buff *skb)
+ struct sk_buff *skb, int linear)
{
if (unlikely(spd->nr_pages == PIPE_BUFFERS))
return 1;
+ if (linear) {
+ page = linear_to_page(page, len, offset);
+ if (!page)
+ return 1;
+ } else
+ get_page(page);
+
spd->pages[spd->nr_pages] = page;
spd->partial[spd->nr_pages].len = len;
spd->partial[spd->nr_pages].offset = offset;
- spd->partial[spd->nr_pages].private = (unsigned long) skb_get(skb);
spd->nr_pages++;
+
return 0;
}
@@ -1369,7 +1382,7 @@ static inline void __segment_seek(struct page **page, unsigned int *poff,
static inline int __splice_segment(struct page *page, unsigned int poff,
unsigned int plen, unsigned int *off,
unsigned int *len, struct sk_buff *skb,
- struct splice_pipe_desc *spd)
+ struct splice_pipe_desc *spd, int linear)
{
if (!*len)
return 1;
@@ -1392,7 +1405,7 @@ static inline int __splice_segment(struct page *page, unsigned int poff,
/* the linear region may spread across several pages */
flen = min_t(unsigned int, flen, PAGE_SIZE - poff);
- if (spd_fill_page(spd, page, flen, poff, skb))
+ if (spd_fill_page(spd, page, flen, poff, skb, linear))
return 1;
__segment_seek(&page, &poff, &plen, flen);
@@ -1419,7 +1432,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
if (__splice_segment(virt_to_page(skb->data),
(unsigned long) skb->data & (PAGE_SIZE - 1),
skb_headlen(skb),
- offset, len, skb, spd))
+ offset, len, skb, spd, 1))
return 1;
/*
@@ -1429,7 +1442,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
const skb_frag_t *f = &skb_shinfo(skb)->frags[seg];
if (__splice_segment(f->page, f->page_offset, f->size,
- offset, len, skb, spd))
+ offset, len, skb, spd, 0))
return 1;
}
@@ -1442,7 +1455,7 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
* the frag list, if such a thing exists. We'd probably need to recurse to
* handle that cleanly.
*/
-int skb_splice_bits(struct sk_buff *__skb, unsigned int offset,
+int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
struct pipe_inode_info *pipe, unsigned int tlen,
unsigned int flags)
{
@@ -1455,16 +1468,6 @@ int skb_splice_bits(struct sk_buff *__skb, unsigned int offset,
.ops = &sock_pipe_buf_ops,
.spd_release = sock_spd_release,
};
- struct sk_buff *skb;
-
- /*
- * I'd love to avoid the clone here, but tcp_read_sock()
- * ignores reference counts and unconditonally kills the sk_buff
- * on return from the actor.
- */
- skb = skb_clone(__skb, GFP_KERNEL);
- if (unlikely(!skb))
- return -ENOMEM;
/*
* __skb_splice_bits() only fails if the output has no room left,
@@ -1488,15 +1491,9 @@ int skb_splice_bits(struct sk_buff *__skb, unsigned int offset,
}
done:
- /*
- * drop our reference to the clone, the pipe consumption will
- * drop the rest.
- */
- kfree_skb(skb);
-
if (spd.nr_pages) {
+ struct sock *sk = skb->sk;
int ret;
- struct sock *sk = __skb->sk;
/*
* Drop the socket lock, otherwise we have reverse
@@ -2588,8 +2585,9 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
struct sk_buff *nskb;
unsigned int headroom;
unsigned int hlen = p->data - skb_mac_header(p);
+ unsigned int len = skb->len;
- if (hlen + p->len + skb->len >= 65536)
+ if (hlen + p->len + len >= 65536)
return -E2BIG;
if (skb_shinfo(p)->frag_list)
@@ -2651,9 +2649,9 @@ merge:
done:
NAPI_GRO_CB(p)->count++;
- p->data_len += skb->len;
- p->truesize += skb->len;
- p->len += skb->len;
+ p->data_len += len;
+ p->truesize += len;
+ p->len += len;
NAPI_GRO_CB(skb)->same_flow = 1;
return 0;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 94f74f5..c802bc1 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -797,6 +797,7 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
unsigned int nlen;
int flush = 1;
int proto;
+ __wsum csum;
if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
goto out;
@@ -808,6 +809,7 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
rcu_read_lock();
proto = ipv6_gso_pull_exthdrs(skb, iph->nexthdr);
+ iph = ipv6_hdr(skb);
IPV6_GRO_CB(skb)->proto = proto;
ops = rcu_dereference(inet6_protos[proto]);
if (!ops || !ops->gro_receive)
@@ -839,8 +841,13 @@ static struct sk_buff **ipv6_gro_receive(struct sk_buff **head,
NAPI_GRO_CB(skb)->flush |= flush;
+ csum = skb->csum;
+ skb_postpull_rcsum(skb, iph, skb_network_header_len(skb));
+
pp = ops->gro_receive(head, skb);
+ skb->csum = csum;
+
out_unlock:
rcu_read_unlock();
diff --git a/net/key/af_key.c b/net/key/af_key.c
index f8bd8df..7dcbde3 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1285,6 +1285,7 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
ext_hdrs[SADB_X_EXT_NAT_T_DPORT-1];
natt->encap_dport = n_port->sadb_x_nat_t_port_port;
}
+ memset(&natt->encap_oa, 0, sizeof(natt->encap_oa));
}
err = xfrm_init_state(x);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 5ba721b..2b890af 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -620,8 +620,8 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
if (use_short_slot != bss_conf->use_short_slot) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: switched to %s slot"
- " (BSSID=%s)\n",
+ printk(KERN_DEBUG "%s: switched to %s slot time"
+ " (BSSID=%pM)\n",
sdata->dev->name,
use_short_slot ? "short" : "long",
ifsta->bssid);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index dc2606d..e49a5b9 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -195,7 +195,6 @@ struct sta_ampdu_mlme {
* @tx_packets: number of RX/TX MSDUs
* @tx_bytes: number of bytes transmitted to this STA
* @tx_fragments: number of transmitted MPDUs
- * @last_txrate: description of the last used transmit rate
* @tid_seq: per-TID sequence numbers for sending to this STA
* @ampdu_mlme: A-MPDU state machine state
* @timer_to_tid: identity mapping to ID timers
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index a4af3a124..4278e54 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1307,8 +1307,10 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (is_multicast_ether_addr(hdr->addr3))
memcpy(hdr->addr1, hdr->addr3, ETH_ALEN);
else
- if (mesh_nexthop_lookup(skb, osdata))
- return 0;
+ if (mesh_nexthop_lookup(skb, osdata)) {
+ dev_put(odev);
+ return 0;
+ }
if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.mesh,
fwded_frames);
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 3dddec6..c32a7e8 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -831,13 +831,16 @@ ctnetlink_parse_nat_setup(struct nf_conn *ct,
if (!parse_nat_setup) {
#ifdef CONFIG_MODULES
rcu_read_unlock();
+ spin_unlock_bh(&nf_conntrack_lock);
nfnl_unlock();
if (request_module("nf-nat-ipv4") < 0) {
nfnl_lock();
+ spin_lock_bh(&nf_conntrack_lock);
rcu_read_lock();
return -EOPNOTSUPP;
}
nfnl_lock();
+ spin_lock_bh(&nf_conntrack_lock);
rcu_read_lock();
if (nfnetlink_parse_nat_setup_hook)
return -EAGAIN;
diff --git a/net/sctp/input.c b/net/sctp/input.c
index bf612d9..2e4a864 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -249,6 +249,19 @@ int sctp_rcv(struct sk_buff *skb)
*/
sctp_bh_lock_sock(sk);
+ if (sk != rcvr->sk) {
+ /* Our cached sk is different from the rcvr->sk. This is
+ * because migrate()/accept() may have moved the association
+ * to a new socket and released all the sockets. So now we
+ * are holding a lock on the old socket while the user may
+ * be doing something with the new socket. Switch our veiw
+ * of the current sk.
+ */
+ sctp_bh_unlock_sock(sk);
+ sk = rcvr->sk;
+ sctp_bh_lock_sock(sk);
+ }
+
if (sock_owned_by_user(sk)) {
SCTP_INC_STATS_BH(SCTP_MIB_IN_PKT_BACKLOG);
sctp_add_backlog(sk, skb);
diff --git a/net/sctp/output.c b/net/sctp/output.c
index c3f417f..7363935 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -324,14 +324,16 @@ append:
switch (chunk->chunk_hdr->type) {
case SCTP_CID_DATA:
retval = sctp_packet_append_data(packet, chunk);
+ if (SCTP_XMIT_OK != retval)
+ goto finish;
/* Disallow SACK bundling after DATA. */
packet->has_sack = 1;
/* Disallow AUTH bundling after DATA */
packet->has_auth = 1;
/* Let it be knows that packet has DATA in it */
packet->has_data = 1;
- if (SCTP_XMIT_OK != retval)
- goto finish;
+ /* timestamp the chunk for rtx purposes */
+ chunk->sent_at = jiffies;
break;
case SCTP_CID_COOKIE_ECHO:
packet->has_cookie_echo = 1;
@@ -470,7 +472,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
} else
chunk->resent = 1;
- chunk->sent_at = jiffies;
has_data = 1;
}
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 247ebc9..bc411c8 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -929,7 +929,6 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
}
/* Finally, transmit new packets. */
- start_timer = 0;
while ((chunk = sctp_outq_dequeue_data(q)) != NULL) {
/* RFC 2960 6.5 Every DATA chunk MUST carry a valid
* stream identifier.
@@ -1028,7 +1027,7 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
list_add_tail(&chunk->transmitted_list,
&transport->transmitted);
- sctp_transport_reset_timers(transport, start_timer-1);
+ sctp_transport_reset_timers(transport, 0);
q->empty = 0;
diff --git a/net/sunrpc/Kconfig b/net/sunrpc/Kconfig
new file mode 100644
index 0000000..eda4a7a
--- /dev/null
+++ b/net/sunrpc/Kconfig
@@ -0,0 +1,79 @@
+config SUNRPC
+ tristate
+
+config SUNRPC_GSS
+ tristate
+
+config SUNRPC_XPRT_RDMA
+ tristate
+ depends on SUNRPC && INFINIBAND && EXPERIMENTAL
+ default SUNRPC && INFINIBAND
+ help
+ This option enables an RPC client transport capability that
+ allows the NFS client to mount servers via an RDMA-enabled
+ transport.
+
+ To compile RPC client RDMA transport support as a module,
+ choose M here: the module will be called xprtrdma.
+
+ If unsure, say N.
+
+config SUNRPC_REGISTER_V4
+ bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)"
+ depends on SUNRPC && EXPERIMENTAL
+ default n
+ help
+ Sun added support for registering RPC services at an IPv6
+ address by creating two new versions of the rpcbind protocol
+ (RFC 1833).
+
+ This option enables support in the kernel RPC server for
+ registering kernel RPC services via version 4 of the rpcbind
+ protocol. If you enable this option, you must run a portmapper
+ daemon that supports rpcbind protocol version 4.
+
+ Serving NFS over IPv6 from knfsd (the kernel's NFS server)
+ requires that you enable this option and use a portmapper that
+ supports rpcbind version 4.
+
+ If unsure, say N to get traditional behavior (register kernel
+ RPC services using only rpcbind version 2). Distributions
+ using the legacy Linux portmapper daemon must say N here.
+
+config RPCSEC_GSS_KRB5
+ tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
+ depends on SUNRPC && EXPERIMENTAL
+ select SUNRPC_GSS
+ select CRYPTO
+ select CRYPTO_MD5
+ select CRYPTO_DES
+ select CRYPTO_CBC
+ help
+ Choose Y here to enable Secure RPC using the Kerberos version 5
+ GSS-API mechanism (RFC 1964).
+
+ Secure RPC calls with Kerberos require an auxiliary user-space
+ daemon which may be found in the Linux nfs-utils package
+ available from http://linux-nfs.org/. In addition, user-space
+ Kerberos support should be installed.
+
+ If unsure, say N.
+
+config RPCSEC_GSS_SPKM3
+ tristate "Secure RPC: SPKM3 mechanism (EXPERIMENTAL)"
+ depends on SUNRPC && EXPERIMENTAL
+ select SUNRPC_GSS
+ select CRYPTO
+ select CRYPTO_MD5
+ select CRYPTO_DES
+ select CRYPTO_CAST5
+ select CRYPTO_CBC
+ help
+ Choose Y here to enable Secure RPC using the SPKM3 public key
+ GSS-API mechansim (RFC 2025).
+
+ Secure RPC calls with SPKM3 require an auxiliary userspace
+ daemon which may be found in the Linux nfs-utils package
+ available from http://linux-nfs.org/.
+
+ If unsure, say N.
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 4f87753..bc494ce 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -421,6 +421,31 @@ static u32 freq_max_bandwidth(const struct ieee80211_freq_range *freq_range,
return 0;
}
+/**
+ * freq_in_rule_band - tells us if a frequency is in a frequency band
+ * @freq_range: frequency rule we want to query
+ * @freq_khz: frequency we are inquiring about
+ *
+ * This lets us know if a specific frequency rule is or is not relevant to
+ * a specific frequency's band. Bands are device specific and artificial
+ * definitions (the "2.4 GHz band" and the "5 GHz band"), however it is
+ * safe for now to assume that a frequency rule should not be part of a
+ * frequency's band if the start freq or end freq are off by more than 2 GHz.
+ * This resolution can be lowered and should be considered as we add
+ * regulatory rule support for other "bands".
+ **/
+static bool freq_in_rule_band(const struct ieee80211_freq_range *freq_range,
+ u32 freq_khz)
+{
+#define ONE_GHZ_IN_KHZ 1000000
+ if (abs(freq_khz - freq_range->start_freq_khz) <= (2 * ONE_GHZ_IN_KHZ))
+ return true;
+ if (abs(freq_khz - freq_range->end_freq_khz) <= (2 * ONE_GHZ_IN_KHZ))
+ return true;
+ return false;
+#undef ONE_GHZ_IN_KHZ
+}
+
/* Converts a country IE to a regulatory domain. A regulatory domain
* structure has a lot of information which the IE doesn't yet have,
* so for the other values we use upper max values as we will intersect
@@ -538,6 +563,7 @@ static struct ieee80211_regdomain *country_ie_2_rd(
/* This time around we fill in the rd */
while (country_ie_len >= 3) {
+ int end_channel = 0;
struct ieee80211_country_ie_triplet *triplet =
(struct ieee80211_country_ie_triplet *) country_ie;
struct ieee80211_reg_rule *reg_rule = NULL;
@@ -559,6 +585,23 @@ static struct ieee80211_regdomain *country_ie_2_rd(
reg_rule->flags = flags;
+ /* 2 GHz */
+ if (triplet->chans.first_channel <= 14)
+ end_channel = triplet->chans.first_channel +
+ triplet->chans.num_channels;
+ else
+ /*
+ * 5 GHz -- For example in country IEs if the first
+ * channel given is 36 and the number of channels is 4
+ * then the individual channel numbers defined for the
+ * 5 GHz PHY by these parameters are: 36, 40, 44, and 48
+ * and not 36, 37, 38, 39.
+ *
+ * See: http://tinyurl.com/11d-clarification
+ */
+ end_channel = triplet->chans.first_channel +
+ (4 * (triplet->chans.num_channels - 1));
+
/* The +10 is since the regulatory domain expects
* the actual band edge, not the center of freq for
* its start and end freqs, assuming 20 MHz bandwidth on
@@ -568,8 +611,7 @@ static struct ieee80211_regdomain *country_ie_2_rd(
triplet->chans.first_channel) - 10);
freq_range->end_freq_khz =
MHZ_TO_KHZ(ieee80211_channel_to_frequency(
- triplet->chans.first_channel +
- triplet->chans.num_channels) + 10);
+ end_channel) + 10);
/* Large arbitrary values, we intersect later */
/* Increment this if we ever support >= 40 MHz channels
@@ -748,12 +790,23 @@ static u32 map_regdom_flags(u32 rd_flags)
* this value to the maximum allowed bandwidth.
* @reg_rule: the regulatory rule which we have for this frequency
*
- * Use this function to get the regulatory rule for a specific frequency.
+ * Use this function to get the regulatory rule for a specific frequency on
+ * a given wireless device. If the device has a specific regulatory domain
+ * it wants to follow we respect that unless a country IE has been received
+ * and processed already.
+ *
+ * Returns 0 if it was able to find a valid regulatory rule which does
+ * apply to the given center_freq otherwise it returns non-zero. It will
+ * also return -ERANGE if we determine the given center_freq does not even have
+ * a regulatory rule for a frequency range in the center_freq's band. See
+ * freq_in_rule_band() for our current definition of a band -- this is purely
+ * subjective and right now its 802.11 specific.
*/
static int freq_reg_info(u32 center_freq, u32 *bandwidth,
const struct ieee80211_reg_rule **reg_rule)
{
int i;
+ bool band_rule_found = false;
u32 max_bandwidth = 0;
if (!cfg80211_regdomain)
@@ -767,7 +820,15 @@ static int freq_reg_info(u32 center_freq, u32 *bandwidth,
rr = &cfg80211_regdomain->reg_rules[i];
fr = &rr->freq_range;
pr = &rr->power_rule;
+
+ /* We only need to know if one frequency rule was
+ * was in center_freq's band, that's enough, so lets
+ * not overwrite it once found */
+ if (!band_rule_found)
+ band_rule_found = freq_in_rule_band(fr, center_freq);
+
max_bandwidth = freq_max_bandwidth(fr, center_freq);
+
if (max_bandwidth && *bandwidth <= max_bandwidth) {
*reg_rule = rr;
*bandwidth = max_bandwidth;
@@ -775,23 +836,64 @@ static int freq_reg_info(u32 center_freq, u32 *bandwidth,
}
}
+ if (!band_rule_found)
+ return -ERANGE;
+
return !max_bandwidth;
}
-static void handle_channel(struct ieee80211_channel *chan)
+static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
+ unsigned int chan_idx)
{
int r;
- u32 flags = chan->orig_flags;
+ u32 flags;
u32 max_bandwidth = 0;
const struct ieee80211_reg_rule *reg_rule = NULL;
const struct ieee80211_power_rule *power_rule = NULL;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_channel *chan;
+
+ sband = wiphy->bands[band];
+ BUG_ON(chan_idx >= sband->n_channels);
+ chan = &sband->channels[chan_idx];
+
+ flags = chan->orig_flags;
r = freq_reg_info(MHZ_TO_KHZ(chan->center_freq),
&max_bandwidth, &reg_rule);
if (r) {
- flags |= IEEE80211_CHAN_DISABLED;
- chan->flags = flags;
+ /* This means no regulatory rule was found in the country IE
+ * with a frequency range on the center_freq's band, since
+ * IEEE-802.11 allows for a country IE to have a subset of the
+ * regulatory information provided in a country we ignore
+ * disabling the channel unless at least one reg rule was
+ * found on the center_freq's band. For details see this
+ * clarification:
+ *
+ * http://tinyurl.com/11d-clarification
+ */
+ if (r == -ERANGE &&
+ last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
+#ifdef CONFIG_CFG80211_REG_DEBUG
+ printk(KERN_DEBUG "cfg80211: Leaving channel %d MHz "
+ "intact on %s - no rule found in band on "
+ "Country IE\n",
+ chan->center_freq, wiphy_name(wiphy));
+#endif
+ } else {
+ /* In this case we know the country IE has at least one reg rule
+ * for the band so we respect its band definitions */
+#ifdef CONFIG_CFG80211_REG_DEBUG
+ if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
+ printk(KERN_DEBUG "cfg80211: Disabling "
+ "channel %d MHz on %s due to "
+ "Country IE\n",
+ chan->center_freq, wiphy_name(wiphy));
+#endif
+ flags |= IEEE80211_CHAN_DISABLED;
+ chan->flags = flags;
+ }
return;
}
@@ -808,12 +910,16 @@ static void handle_channel(struct ieee80211_channel *chan)
chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp);
}
-static void handle_band(struct ieee80211_supported_band *sband)
+static void handle_band(struct wiphy *wiphy, enum ieee80211_band band)
{
- int i;
+ unsigned int i;
+ struct ieee80211_supported_band *sband;
+
+ BUG_ON(!wiphy->bands[band]);
+ sband = wiphy->bands[band];
for (i = 0; i < sband->n_channels; i++)
- handle_channel(&sband->channels[i]);
+ handle_channel(wiphy, band, i);
}
static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
@@ -840,7 +946,7 @@ void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
enum ieee80211_band band;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (wiphy->bands[band])
- handle_band(wiphy->bands[band]);
+ handle_band(wiphy, band);
if (wiphy->reg_notifier)
wiphy->reg_notifier(wiphy, setby);
}
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 7877e79..b95a2d6 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1914,17 +1914,10 @@ static int xfrm_send_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
}
#endif
-/* For the xfrm_usersa_info cases we have to work around some 32-bit vs.
- * 64-bit compatability issues. On 32-bit the structure is 220 bytes, but
- * for 64-bit it gets padded out to 224 bytes. Those bytes are just
- * padding and don't have any content we care about. Therefore as long
- * as we have enough bytes for the content we can make both cases work.
- */
-
#define XMSGSIZE(type) sizeof(struct type)
static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
- [XFRM_MSG_NEWSA - XFRM_MSG_BASE] = 220, /* see above */
+ [XFRM_MSG_NEWSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_info),
[XFRM_MSG_DELSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
[XFRM_MSG_GETSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_id),
[XFRM_MSG_NEWPOLICY - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_info),
@@ -1934,7 +1927,7 @@ static const int xfrm_msg_min[XFRM_NR_MSGTYPES] = {
[XFRM_MSG_ACQUIRE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_acquire),
[XFRM_MSG_EXPIRE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_expire),
[XFRM_MSG_UPDPOLICY - XFRM_MSG_BASE] = XMSGSIZE(xfrm_userpolicy_info),
- [XFRM_MSG_UPDSA - XFRM_MSG_BASE] = 220, /* see above */
+ [XFRM_MSG_UPDSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_info),
[XFRM_MSG_POLEXPIRE - XFRM_MSG_BASE] = XMSGSIZE(xfrm_user_polexpire),
[XFRM_MSG_FLUSHSA - XFRM_MSG_BASE] = XMSGSIZE(xfrm_usersa_flush),
[XFRM_MSG_FLUSHPOLICY - XFRM_MSG_BASE] = 0,
generated by cgit v0.10.2 at 2024-11-11 13:23:31 (GMT)