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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 

Pull networking fixes from David Miller:

 1) In ip_gre tunnel, handle the conflict between TUNNEL_{SEQ,CSUM} and
    GSO/LLTX properly. From Sabrina Dubroca.

 2) Stop properly on error in lan78xx_read_otp(), from Phil Elwell.

 3) Don't uncompress in slip before rstate is initialized, from Tejaswi
    Tanikella.

 4) When using 1.x firmware on aquantia, issue a deinit before we
    hardware reset the chip, otherwise we break dirty wake WOL. From
    Igor Russkikh.

 5) Correct log check in vhost_vq_access_ok(), from Stefan Hajnoczi.

 6) Fix ethtool -x crashes in bnxt_en, from Michael Chan.

 7) Fix races in l2tp tunnel creation and duplicate tunnel detection,
    from Guillaume Nault.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (22 commits)
  l2tp: fix race in duplicate tunnel detection
  l2tp: fix races in tunnel creation
  tun: send netlink notification when the device is modified
  tun: set the flags before registering the netdevice
  lan78xx: Don't reset the interface on open
  bnxt_en: Fix NULL pointer dereference at bnxt_free_irq().
  bnxt_en: Need to include RDMA rings in bnxt_check_rings().
  bnxt_en: Support max-mtu with VF-reps
  bnxt_en: Ignore src port field in decap filter nodes
  bnxt_en: do not allow wildcard matches for L2 flows
  bnxt_en: Fix ethtool -x crash when device is down.
  vhost: return bool from *_access_ok() functions
  vhost: fix vhost_vq_access_ok() log check
  vhost: Fix vhost_copy_to_user()
  net: aquantia: oops when shutdown on already stopped device
  net: aquantia: Regression on reset with 1.x firmware
  cdc_ether: flag the Cinterion AHS8 modem by gemalto as WWAN
  slip: Check if rstate is initialized before uncompressing
  lan78xx: Avoid spurious kevent 4 "error"
  lan78xx: Correctly indicate invalid OTP
  ...
This commit is contained in:
Linus Torvalds 2018-04-12 11:09:05 -07:00
parent 67a7a8fff8 0c84cee8f1
commit 5d1365940a
19 changed files with 345 additions and 198 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/ethernet/aquantia/atlantic/aq_nic.c
View File

@ -951,9 +951,11 @@ void aq_nic_shutdown(struct aq_nic_s *self)
netif_device_detach(self->ndev);
err = aq_nic_stop(self);
if (err < 0)
goto err_exit;
if (netif_running(self->ndev)) {
err = aq_nic_stop(self);
if (err < 0)
goto err_exit;
}
aq_nic_deinit(self);
err_exit:

16
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
View File

@ -48,6 +48,8 @@
#define FORCE_FLASHLESS 0
static int hw_atl_utils_ver_match(u32 ver_expected, u32 ver_actual);
static int hw_atl_utils_mpi_set_state(struct aq_hw_s *self,
enum hal_atl_utils_fw_state_e state);
int hw_atl_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops)
{
@ -247,6 +249,20 @@ int hw_atl_utils_soft_reset(struct aq_hw_s *self)
self->rbl_enabled = (boot_exit_code != 0);
/* FW 1.x may bootup in an invalid POWER state (WOL feature).
* We should work around this by forcing its state back to DEINIT
*/
if (!hw_atl_utils_ver_match(HW_ATL_FW_VER_1X,
aq_hw_read_reg(self,
HW_ATL_MPI_FW_VERSION))) {
int err = 0;
hw_atl_utils_mpi_set_state(self, MPI_DEINIT);
AQ_HW_WAIT_FOR((aq_hw_read_reg(self, HW_ATL_MPI_STATE_ADR) &
HW_ATL_MPI_STATE_MSK) == MPI_DEINIT,
10, 1000U);
}
if (self->rbl_enabled)
return hw_atl_utils_soft_reset_rbl(self);
else

4
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -6090,7 +6090,7 @@ static void bnxt_free_irq(struct bnxt *bp)
free_irq_cpu_rmap(bp->dev->rx_cpu_rmap);
bp->dev->rx_cpu_rmap = NULL;
#endif
if (!bp->irq_tbl)
if (!bp->irq_tbl || !bp->bnapi)
return;
for (i = 0; i < bp->cp_nr_rings; i++) {
@ -7686,6 +7686,8 @@ int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs,
if (bp->flags & BNXT_FLAG_AGG_RINGS)
rx_rings <<= 1;
cp = sh ? max_t(int, tx_rings_needed, rx) : tx_rings_needed + rx;
if (bp->flags & BNXT_FLAG_NEW_RM)
cp += bnxt_get_ulp_msix_num(bp);
return bnxt_hwrm_check_rings(bp, tx_rings_needed, rx_rings, rx, cp,
vnics);
}

11
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
View File

@ -870,17 +870,22 @@ static int bnxt_get_rxfh(struct net_device *dev, u32 *indir, u8 *key,
u8 *hfunc)
{
struct bnxt *bp = netdev_priv(dev);
struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
struct bnxt_vnic_info *vnic;
int i = 0;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (indir)
if (!bp->vnic_info)
return 0;
vnic = &bp->vnic_info[0];
if (indir && vnic->rss_table) {
for (i = 0; i < HW_HASH_INDEX_SIZE; i++)
indir[i] = le16_to_cpu(vnic->rss_table[i]);
}
if (key)
if (key && vnic->rss_hash_key)
memcpy(key, vnic->rss_hash_key, HW_HASH_KEY_SIZE);
return 0;

63
drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
View File

@ -377,6 +377,30 @@ static bool is_wildcard(void *mask, int len)
return true;
}
static bool is_exactmatch(void *mask, int len)
{
const u8 *p = mask;
int i;
for (i = 0; i < len; i++)
if (p[i] != 0xff)
return false;
return true;
}
static bool bits_set(void *key, int len)
{
const u8 *p = key;
int i;
for (i = 0; i < len; i++)
if (p[i] != 0)
return true;
return false;
}
static int bnxt_hwrm_cfa_flow_alloc(struct bnxt *bp, struct bnxt_tc_flow *flow,
__le16 ref_flow_handle,
__le32 tunnel_handle, __le16 *flow_handle)
@ -764,6 +788,41 @@ static bool bnxt_tc_can_offload(struct bnxt *bp, struct bnxt_tc_flow *flow)
return false;
}
/* Currently source/dest MAC cannot be partial wildcard */
if (bits_set(&flow->l2_key.smac, sizeof(flow->l2_key.smac)) &&
!is_exactmatch(flow->l2_mask.smac, sizeof(flow->l2_mask.smac))) {
netdev_info(bp->dev, "Wildcard match unsupported for Source MAC\n");
return false;
}
if (bits_set(&flow->l2_key.dmac, sizeof(flow->l2_key.dmac)) &&
!is_exactmatch(&flow->l2_mask.dmac, sizeof(flow->l2_mask.dmac))) {
netdev_info(bp->dev, "Wildcard match unsupported for Dest MAC\n");
return false;
}
/* Currently VLAN fields cannot be partial wildcard */
if (bits_set(&flow->l2_key.inner_vlan_tci,
sizeof(flow->l2_key.inner_vlan_tci)) &&
!is_exactmatch(&flow->l2_mask.inner_vlan_tci,
sizeof(flow->l2_mask.inner_vlan_tci))) {
netdev_info(bp->dev, "Wildcard match unsupported for VLAN TCI\n");
return false;
}
if (bits_set(&flow->l2_key.inner_vlan_tpid,
sizeof(flow->l2_key.inner_vlan_tpid)) &&
!is_exactmatch(&flow->l2_mask.inner_vlan_tpid,
sizeof(flow->l2_mask.inner_vlan_tpid))) {
netdev_info(bp->dev, "Wildcard match unsupported for VLAN TPID\n");
return false;
}
/* Currently Ethertype must be set */
if (!is_exactmatch(&flow->l2_mask.ether_type,
sizeof(flow->l2_mask.ether_type))) {
netdev_info(bp->dev, "Wildcard match unsupported for Ethertype\n");
return false;
}
return true;
}
@ -992,8 +1051,10 @@ static int bnxt_tc_get_decap_handle(struct bnxt *bp, struct bnxt_tc_flow *flow,
/* Check if there's another flow using the same tunnel decap.
* If not, add this tunnel to the table and resolve the other
* tunnel header fileds
* tunnel header fileds. Ignore src_port in the tunnel_key,
* since it is not required for decap filters.
*/
decap_key->tp_src = 0;
decap_node = bnxt_tc_get_tunnel_node(bp, &tc_info->decap_table,
&tc_info->decap_ht_params,
decap_key);

30
drivers/net/ethernet/broadcom/bnxt/bnxt_vfr.c
View File

@ -64,6 +64,31 @@ static int hwrm_cfa_vfr_free(struct bnxt *bp, u16 vf_idx)
return rc;
}
static int bnxt_hwrm_vfr_qcfg(struct bnxt *bp, struct bnxt_vf_rep *vf_rep,
u16 *max_mtu)
{
struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr;
struct hwrm_func_qcfg_input req = {0};
u16 mtu;
int rc;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1);
req.fid = cpu_to_le16(bp->pf.vf[vf_rep->vf_idx].fw_fid);
mutex_lock(&bp->hwrm_cmd_lock);
rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
if (!rc) {
mtu = le16_to_cpu(resp->max_mtu_configured);
if (!mtu)
*max_mtu = BNXT_MAX_MTU;
else
*max_mtu = mtu;
}
mutex_unlock(&bp->hwrm_cmd_lock);
return rc;
}
static int bnxt_vf_rep_open(struct net_device *dev)
{
struct bnxt_vf_rep *vf_rep = netdev_priv(dev);
@ -365,6 +390,7 @@ static void bnxt_vf_rep_netdev_init(struct bnxt *bp, struct bnxt_vf_rep *vf_rep,
struct net_device *dev)
{
struct net_device *pf_dev = bp->dev;
u16 max_mtu;
dev->netdev_ops = &bnxt_vf_rep_netdev_ops;
dev->ethtool_ops = &bnxt_vf_rep_ethtool_ops;
@ -380,6 +406,10 @@ static void bnxt_vf_rep_netdev_init(struct bnxt *bp, struct bnxt_vf_rep *vf_rep,
bnxt_vf_rep_eth_addr_gen(bp->pf.mac_addr, vf_rep->vf_idx,
dev->perm_addr);
ether_addr_copy(dev->dev_addr, dev->perm_addr);
/* Set VF-Rep's max-mtu to the corresponding VF's max-mtu */
if (!bnxt_hwrm_vfr_qcfg(bp, vf_rep, &max_mtu))
dev->max_mtu = max_mtu;
dev->min_mtu = ETH_ZLEN;
}
static int bnxt_pcie_dsn_get(struct bnxt *bp, u8 dsn[])

5
drivers/net/slip/slhc.c
View File

@ -509,6 +509,10 @@ slhc_uncompress(struct slcompress *comp, unsigned char *icp, int isize)
if(x < 0 || x > comp->rslot_limit)
goto bad;
/* Check if the cstate is initialized */
if (!comp->rstate[x].initialized)
goto bad;
comp->flags &=~ SLF_TOSS;
comp->recv_current = x;
} else {
@ -673,6 +677,7 @@ slhc_remember(struct slcompress *comp, unsigned char *icp, int isize)
if (cs->cs_tcp.doff > 5)
memcpy(cs->cs_tcpopt, icp + ihl*4 + sizeof(struct tcphdr), (cs->cs_tcp.doff - 5) * 4);
cs->cs_hsize = ihl*2 + cs->cs_tcp.doff*2;
cs->initialized = true;
/* Put headers back on packet
* Neither header checksum is recalculated
*/

33
drivers/net/tun.c
View File

@ -743,8 +743,15 @@ static void __tun_detach(struct tun_file *tfile, bool clean)
static void tun_detach(struct tun_file *tfile, bool clean)
{
struct tun_struct *tun;
struct net_device *dev;
rtnl_lock();
tun = rtnl_dereference(tfile->tun);
dev = tun ? tun->dev : NULL;
__tun_detach(tfile, clean);
if (dev)
netdev_state_change(dev);
rtnl_unlock();
}
@ -2562,10 +2569,15 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
/* One or more queue has already been attached, no need
* to initialize the device again.
*/
netdev_state_change(dev);
return 0;
}
}
else {
tun->flags = (tun->flags & ~TUN_FEATURES) |
(ifr->ifr_flags & TUN_FEATURES);
netdev_state_change(dev);
} else {
char *name;
unsigned long flags = 0;
int queues = ifr->ifr_flags & IFF_MULTI_QUEUE ?
@ -2642,6 +2654,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
~(NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_STAG_TX);
tun->flags = (tun->flags & ~TUN_FEATURES) |
(ifr->ifr_flags & TUN_FEATURES);
INIT_LIST_HEAD(&tun->disabled);
err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI);
if (err < 0)
@ -2656,9 +2671,6 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
tun_debug(KERN_INFO, tun, "tun_set_iff\n");
tun->flags = (tun->flags & ~TUN_FEATURES) |
(ifr->ifr_flags & TUN_FEATURES);
/* Make sure persistent devices do not get stuck in
* xoff state.
*/
@ -2805,6 +2817,9 @@ static int tun_set_queue(struct file *file, struct ifreq *ifr)
} else
ret = -EINVAL;
if (ret >= 0)
netdev_state_change(tun->dev);
unlock:
rtnl_unlock();
return ret;
@ -2845,6 +2860,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
unsigned int ifindex;
int le;
int ret;
bool do_notify = false;
if (cmd == TUNSETIFF || cmd == TUNSETQUEUE ||
(_IOC_TYPE(cmd) == SOCK_IOC_TYPE && cmd != SIOCGSKNS)) {
@ -2941,10 +2957,12 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
if (arg && !(tun->flags & IFF_PERSIST)) {
tun->flags |= IFF_PERSIST;
__module_get(THIS_MODULE);
do_notify = true;
}
if (!arg && (tun->flags & IFF_PERSIST)) {
tun->flags &= ~IFF_PERSIST;
module_put(THIS_MODULE);
do_notify = true;
}
tun_debug(KERN_INFO, tun, "persist %s\n",
@ -2959,6 +2977,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
break;
}
tun->owner = owner;
do_notify = true;
tun_debug(KERN_INFO, tun, "owner set to %u\n",
from_kuid(&init_user_ns, tun->owner));
break;
@ -2971,6 +2990,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
break;
}
tun->group = group;
do_notify = true;
tun_debug(KERN_INFO, tun, "group set to %u\n",
from_kgid(&init_user_ns, tun->group));
break;
@ -3130,6 +3150,9 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
break;
}
if (do_notify)
netdev_state_change(tun->dev);
unlock:
rtnl_unlock();
if (tun)

6
drivers/net/usb/cdc_ether.c
View File

@ -901,6 +901,12 @@ static const struct usb_device_id products[] = {
USB_CDC_SUBCLASS_ETHERNET,
USB_CDC_PROTO_NONE),
.driver_info = (unsigned long)&wwan_info,
}, {
/* Cinterion AHS3 modem by GEMALTO */
USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM,
USB_CDC_SUBCLASS_ETHERNET,
USB_CDC_PROTO_NONE),
.driver_info = (unsigned long)&wwan_info,
}, {
USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
USB_CDC_PROTO_NONE),

9
drivers/net/usb/lan78xx.c
View File

@ -928,7 +928,8 @@ static int lan78xx_read_otp(struct lan78xx_net *dev, u32 offset,
offset += 0x100;
else
ret = -EINVAL;
ret = lan78xx_read_raw_otp(dev, offset, length, data);
if (!ret)
ret = lan78xx_read_raw_otp(dev, offset, length, data);
}
return ret;
@ -2502,7 +2503,7 @@ static void lan78xx_init_stats(struct lan78xx_net *dev)
dev->stats.rollover_max.eee_tx_lpi_transitions = 0xFFFFFFFF;
dev->stats.rollover_max.eee_tx_lpi_time = 0xFFFFFFFF;
lan78xx_defer_kevent(dev, EVENT_STAT_UPDATE);
set_bit(EVENT_STAT_UPDATE, &dev->flags);
}
static int lan78xx_open(struct net_device *net)
@ -2514,10 +2515,6 @@ static int lan78xx_open(struct net_device *net)
if (ret < 0)
goto out;
ret = lan78xx_reset(dev);
if (ret < 0)
goto done;
phy_start(net->phydev);
netif_dbg(dev, ifup, dev->net, "phy initialised successfully");

72
drivers/vhost/vhost.c
View File

@ -641,14 +641,14 @@ void vhost_dev_cleanup(struct vhost_dev *dev)
}
EXPORT_SYMBOL_GPL(vhost_dev_cleanup);
static int log_access_ok(void __user *log_base, u64 addr, unsigned long sz)
static bool log_access_ok(void __user *log_base, u64 addr, unsigned long sz)
{
u64 a = addr / VHOST_PAGE_SIZE / 8;
/* Make sure 64 bit math will not overflow. */
if (a > ULONG_MAX - (unsigned long)log_base ||
a + (unsigned long)log_base > ULONG_MAX)
return 0;
return false;
return access_ok(VERIFY_WRITE, log_base + a,
(sz + VHOST_PAGE_SIZE * 8 - 1) / VHOST_PAGE_SIZE / 8);
@ -661,30 +661,30 @@ static bool vhost_overflow(u64 uaddr, u64 size)
}
/* Caller should have vq mutex and device mutex. */
static int vq_memory_access_ok(void __user *log_base, struct vhost_umem *umem,
int log_all)
static bool vq_memory_access_ok(void __user *log_base, struct vhost_umem *umem,
int log_all)
{
struct vhost_umem_node *node;
if (!umem)
return 0;
return false;
list_for_each_entry(node, &umem->umem_list, link) {
unsigned long a = node->userspace_addr;
if (vhost_overflow(node->userspace_addr, node->size))
return 0;
return false;
if (!access_ok(VERIFY_WRITE, (void __user *)a,
node->size))
return 0;
return false;
else if (log_all && !log_access_ok(log_base,
node->start,
node->size))
return 0;
return false;
}
return 1;
return true;
}
static inline void __user *vhost_vq_meta_fetch(struct vhost_virtqueue *vq,
@ -701,13 +701,13 @@ static inline void __user *vhost_vq_meta_fetch(struct vhost_virtqueue *vq,
/* Can we switch to this memory table? */
/* Caller should have device mutex but not vq mutex */
static int memory_access_ok(struct vhost_dev *d, struct vhost_umem *umem,
int log_all)
static bool memory_access_ok(struct vhost_dev *d, struct vhost_umem *umem,
int log_all)
{
int i;
for (i = 0; i < d->nvqs; ++i) {
int ok;
bool ok;
bool log;
mutex_lock(&d->vqs[i]->mutex);
@ -717,12 +717,12 @@ static int memory_access_ok(struct vhost_dev *d, struct vhost_umem *umem,
ok = vq_memory_access_ok(d->vqs[i]->log_base,
umem, log);
else
ok = 1;
ok = true;
mutex_unlock(&d->vqs[i]->mutex);
if (!ok)
return 0;
return false;
}
return 1;
return true;
}
static int translate_desc(struct vhost_virtqueue *vq, u64 addr, u32 len,
@ -744,7 +744,7 @@ static int vhost_copy_to_user(struct vhost_virtqueue *vq, void __user *to,
struct iov_iter t;
void __user *uaddr = vhost_vq_meta_fetch(vq,
(u64)(uintptr_t)to, size,
VHOST_ADDR_DESC);
VHOST_ADDR_USED);
if (uaddr)
return __copy_to_user(uaddr, from, size);
@ -959,21 +959,21 @@ static void vhost_iotlb_notify_vq(struct vhost_dev *d,
spin_unlock(&d->iotlb_lock);
}
static int umem_access_ok(u64 uaddr, u64 size, int access)
static bool umem_access_ok(u64 uaddr, u64 size, int access)
{
unsigned long a = uaddr;
/* Make sure 64 bit math will not overflow. */
if (vhost_overflow(uaddr, size))
return -EFAULT;
return false;
if ((access & VHOST_ACCESS_RO) &&
!access_ok(VERIFY_READ, (void __user *)a, size))
return -EFAULT;
return false;
if ((access & VHOST_ACCESS_WO) &&
!access_ok(VERIFY_WRITE, (void __user *)a, size))
return -EFAULT;
return 0;
return false;
return true;
}
static int vhost_process_iotlb_msg(struct vhost_dev *dev,
@ -988,7 +988,7 @@ static int vhost_process_iotlb_msg(struct vhost_dev *dev,
ret = -EFAULT;
break;
}
if (umem_access_ok(msg->uaddr, msg->size, msg->perm)) {
if (!umem_access_ok(msg->uaddr, msg->size, msg->perm)) {
ret = -EFAULT;
break;
}
@ -1135,10 +1135,10 @@ static int vhost_iotlb_miss(struct vhost_virtqueue *vq, u64 iova, int access)
return 0;
}
static int vq_access_ok(struct vhost_virtqueue *vq, unsigned int num,
struct vring_desc __user *desc,
struct vring_avail __user *avail,
struct vring_used __user *used)
static bool vq_access_ok(struct vhost_virtqueue *vq, unsigned int num,
struct vring_desc __user *desc,
struct vring_avail __user *avail,
struct vring_used __user *used)
{
size_t s = vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
@ -1161,8 +1161,8 @@ static void vhost_vq_meta_update(struct vhost_virtqueue *vq,
vq->meta_iotlb[type] = node;
}
static int iotlb_access_ok(struct vhost_virtqueue *vq,
int access, u64 addr, u64 len, int type)
static bool iotlb_access_ok(struct vhost_virtqueue *vq,
int access, u64 addr, u64 len, int type)
{
const struct vhost_umem_node *node;
struct vhost_umem *umem = vq->iotlb;
@ -1220,7 +1220,7 @@ EXPORT_SYMBOL_GPL(vq_iotlb_prefetch);
/* Can we log writes? */
/* Caller should have device mutex but not vq mutex */
int vhost_log_access_ok(struct vhost_dev *dev)
bool vhost_log_access_ok(struct vhost_dev *dev)
{
return memory_access_ok(dev, dev->umem, 1);
}
@ -1228,8 +1228,8 @@ EXPORT_SYMBOL_GPL(vhost_log_access_ok);
/* Verify access for write logging. */
/* Caller should have vq mutex and device mutex */
static int vq_log_access_ok(struct vhost_virtqueue *vq,
void __user *log_base)
static bool vq_log_access_ok(struct vhost_virtqueue *vq,
void __user *log_base)
{
size_t s = vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
@ -1242,12 +1242,14 @@ static int vq_log_access_ok(struct vhost_virtqueue *vq,
/* Can we start vq? */
/* Caller should have vq mutex and device mutex */
int vhost_vq_access_ok(struct vhost_virtqueue *vq)
bool vhost_vq_access_ok(struct vhost_virtqueue *vq)
{
int ret = vq_log_access_ok(vq, vq->log_base);
if (!vq_log_access_ok(vq, vq->log_base))
return false;
if (ret || vq->iotlb)
return ret;
/* Access validation occurs at prefetch time with IOTLB */
if (vq->iotlb)
return true;
return vq_access_ok(vq, vq->num, vq->desc, vq->avail, vq->used);
}

4
drivers/vhost/vhost.h
View File

@ -178,8 +178,8 @@ void vhost_dev_cleanup(struct vhost_dev *);
void vhost_dev_stop(struct vhost_dev *);
long vhost_dev_ioctl(struct vhost_dev *, unsigned int ioctl, void __user *argp);
long vhost_vring_ioctl(struct vhost_dev *d, unsigned int ioctl, void __user *argp);
int vhost_vq_access_ok(struct vhost_virtqueue *vq);
int vhost_log_access_ok(struct vhost_dev *);
bool vhost_vq_access_ok(struct vhost_virtqueue *vq);
bool vhost_log_access_ok(struct vhost_dev *);
int vhost_get_vq_desc(struct vhost_virtqueue *,
struct iovec iov[], unsigned int iov_count,

1
include/net/slhc_vj.h
View File

@ -127,6 +127,7 @@ typedef __u32 int32;
*/
struct cstate {
byte_t cs_this; /* connection id number (xmit) */
bool initialized; /* true if initialized */
struct cstate *next; /* next in ring (xmit) */
struct iphdr cs_ip; /* ip/tcp hdr from most recent packet */
struct tcphdr cs_tcp;

6
net/ipv4/ip_gre.c
View File

@ -781,8 +781,14 @@ static void ipgre_link_update(struct net_device *dev, bool set_mtu)
tunnel->encap.type == TUNNEL_ENCAP_NONE) {
dev->features |= NETIF_F_GSO_SOFTWARE;
dev->hw_features |= NETIF_F_GSO_SOFTWARE;
} else {
dev->features &= ~NETIF_F_GSO_SOFTWARE;
dev->hw_features &= ~NETIF_F_GSO_SOFTWARE;
}
dev->features |= NETIF_F_LLTX;
} else {
dev->hw_features &= ~NETIF_F_GSO_SOFTWARE;
dev->features &= ~(NETIF_F_LLTX | NETIF_F_GSO_SOFTWARE);
}
}

225
net/l2tp/l2tp_core.c
View File

@ -335,26 +335,6 @@ err_tlock:
}
EXPORT_SYMBOL_GPL(l2tp_session_register);
/* Lookup a tunnel by id
*/
struct l2tp_tunnel *l2tp_tunnel_find(const struct net *net, u32 tunnel_id)
{
struct l2tp_tunnel *tunnel;
struct l2tp_net *pn = l2tp_pernet(net);
rcu_read_lock_bh();
list_for_each_entry_rcu(tunnel, &pn->l2tp_tunnel_list, list) {
if (tunnel->tunnel_id == tunnel_id) {
rcu_read_unlock_bh();
return tunnel;
}
}
rcu_read_unlock_bh();
return NULL;
}
EXPORT_SYMBOL_GPL(l2tp_tunnel_find);
struct l2tp_tunnel *l2tp_tunnel_find_nth(const struct net *net, int nth)
{
struct l2tp_net *pn = l2tp_pernet(net);
@ -1436,74 +1416,11 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
{
struct l2tp_tunnel *tunnel = NULL;
int err;
struct socket *sock = NULL;
struct sock *sk = NULL;
struct l2tp_net *pn;
enum l2tp_encap_type encap = L2TP_ENCAPTYPE_UDP;
/* Get the tunnel socket from the fd, which was opened by
* the userspace L2TP daemon. If not specified, create a
* kernel socket.
*/
if (fd < 0) {
err = l2tp_tunnel_sock_create(net, tunnel_id, peer_tunnel_id,
cfg, &sock);
if (err < 0)
goto err;
} else {
sock = sockfd_lookup(fd, &err);
if (!sock) {
pr_err("tunl %u: sockfd_lookup(fd=%d) returned %d\n",
tunnel_id, fd, err);
err = -EBADF;
goto err;
}
/* Reject namespace mismatches */
if (!net_eq(sock_net(sock->sk), net)) {
pr_err("tunl %u: netns mismatch\n", tunnel_id);
err = -EINVAL;
goto err;
}
}
sk = sock->sk;
if (cfg != NULL)
encap = cfg->encap;
/* Quick sanity checks */
err = -EPROTONOSUPPORT;
if (sk->sk_type != SOCK_DGRAM) {
pr_debug("tunl %hu: fd %d wrong socket type\n",
tunnel_id, fd);
goto err;
}
switch (encap) {
case L2TP_ENCAPTYPE_UDP:
if (sk->sk_protocol != IPPROTO_UDP) {
pr_err("tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
tunnel_id, fd, sk->sk_protocol, IPPROTO_UDP);
goto err;
}
break;
case L2TP_ENCAPTYPE_IP:
if (sk->sk_protocol != IPPROTO_L2TP) {
pr_err("tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
tunnel_id, fd, sk->sk_protocol, IPPROTO_L2TP);
goto err;
}
break;
}
/* Check if this socket has already been prepped */
tunnel = l2tp_tunnel(sk);
if (tunnel != NULL) {
/* This socket has already been prepped */
err = -EBUSY;
goto err;
}
tunnel = kzalloc(sizeof(struct l2tp_tunnel), GFP_KERNEL);
if (tunnel == NULL) {
err = -ENOMEM;
@ -1520,72 +1437,126 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
rwlock_init(&tunnel->hlist_lock);
tunnel->acpt_newsess = true;
/* The net we belong to */
tunnel->l2tp_net = net;
pn = l2tp_pernet(net);
if (cfg != NULL)
tunnel->debug = cfg->debug;
/* Mark socket as an encapsulation socket. See net/ipv4/udp.c */
tunnel->encap = encap;
if (encap == L2TP_ENCAPTYPE_UDP) {
struct udp_tunnel_sock_cfg udp_cfg = { };
udp_cfg.sk_user_data = tunnel;
udp_cfg.encap_type = UDP_ENCAP_L2TPINUDP;
udp_cfg.encap_rcv = l2tp_udp_encap_recv;
udp_cfg.encap_destroy = l2tp_udp_encap_destroy;
setup_udp_tunnel_sock(net, sock, &udp_cfg);
} else {
sk->sk_user_data = tunnel;
}
/* Bump the reference count. The tunnel context is deleted
* only when this drops to zero. A reference is also held on
* the tunnel socket to ensure that it is not released while
* the tunnel is extant. Must be done before sk_destruct is
* set.
*/
refcount_set(&tunnel->ref_count, 1);
sock_hold(sk);
tunnel->sock = sk;
tunnel->fd = fd;
/* Hook on the tunnel socket destructor so that we can cleanup
* if the tunnel socket goes away.
*/
tunnel->old_sk_destruct = sk->sk_destruct;
sk->sk_destruct = &l2tp_tunnel_destruct;
lockdep_set_class_and_name(&sk->sk_lock.slock, &l2tp_socket_class, "l2tp_sock");
sk->sk_allocation = GFP_ATOMIC;
/* Init delete workqueue struct */
INIT_WORK(&tunnel->del_work, l2tp_tunnel_del_work);
/* Add tunnel to our list */
INIT_LIST_HEAD(&tunnel->list);
spin_lock_bh(&pn->l2tp_tunnel_list_lock);
list_add_rcu(&tunnel->list, &pn->l2tp_tunnel_list);
spin_unlock_bh(&pn->l2tp_tunnel_list_lock);
err = 0;
err:
if (tunnelp)
*tunnelp = tunnel;
/* If tunnel's socket was created by the kernel, it doesn't
* have a file.
*/
if (sock && sock->file)
sockfd_put(sock);
return err;
}
EXPORT_SYMBOL_GPL(l2tp_tunnel_create);
static int l2tp_validate_socket(const struct sock *sk, const struct net *net,
enum l2tp_encap_type encap)
{
if (!net_eq(sock_net(sk), net))
return -EINVAL;
if (sk->sk_type != SOCK_DGRAM)
return -EPROTONOSUPPORT;
if ((encap == L2TP_ENCAPTYPE_UDP && sk->sk_protocol != IPPROTO_UDP) ||
(encap == L2TP_ENCAPTYPE_IP && sk->sk_protocol != IPPROTO_L2TP))
return -EPROTONOSUPPORT;
if (sk->sk_user_data)
return -EBUSY;
return 0;
}
int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
struct l2tp_tunnel_cfg *cfg)
{
struct l2tp_tunnel *tunnel_walk;
struct l2tp_net *pn;
struct socket *sock;
struct sock *sk;
int ret;
if (tunnel->fd < 0) {
ret = l2tp_tunnel_sock_create(net, tunnel->tunnel_id,
tunnel->peer_tunnel_id, cfg,
&sock);
if (ret < 0)
goto err;
} else {
sock = sockfd_lookup(tunnel->fd, &ret);
if (!sock)
goto err;
ret = l2tp_validate_socket(sock->sk, net, tunnel->encap);
if (ret < 0)
goto err_sock;
}
sk = sock->sk;
sock_hold(sk);
tunnel->sock = sk;
tunnel->l2tp_net = net;
pn = l2tp_pernet(net);
spin_lock_bh(&pn->l2tp_tunnel_list_lock);
list_for_each_entry(tunnel_walk, &pn->l2tp_tunnel_list, list) {
if (tunnel_walk->tunnel_id == tunnel->tunnel_id) {
spin_unlock_bh(&pn->l2tp_tunnel_list_lock);
ret = -EEXIST;
goto err_sock;
}
}
list_add_rcu(&tunnel->list, &pn->l2tp_tunnel_list);
spin_unlock_bh(&pn->l2tp_tunnel_list_lock);
if (tunnel->encap == L2TP_ENCAPTYPE_UDP) {
struct udp_tunnel_sock_cfg udp_cfg = {
.sk_user_data = tunnel,
.encap_type = UDP_ENCAP_L2TPINUDP,
.encap_rcv = l2tp_udp_encap_recv,
.encap_destroy = l2tp_udp_encap_destroy,
};
setup_udp_tunnel_sock(net, sock, &udp_cfg);
} else {
sk->sk_user_data = tunnel;
}
tunnel->old_sk_destruct = sk->sk_destruct;
sk->sk_destruct = &l2tp_tunnel_destruct;
lockdep_set_class_and_name(&sk->sk_lock.slock, &l2tp_socket_class,
"l2tp_sock");
sk->sk_allocation = GFP_ATOMIC;
if (tunnel->fd >= 0)
sockfd_put(sock);
return 0;
err_sock:
if (tunnel->fd < 0)
sock_release(sock);
else
sockfd_put(sock);
err:
return ret;
}
EXPORT_SYMBOL_GPL(l2tp_tunnel_register);
/* This function is used by the netlink TUNNEL_DELETE command.
*/
void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel)

4
net/l2tp/l2tp_core.h
View File

@ -220,12 +220,14 @@ struct l2tp_session *l2tp_session_get(const struct net *net,
struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth);
struct l2tp_session *l2tp_session_get_by_ifname(const struct net *net,
const char *ifname);
struct l2tp_tunnel *l2tp_tunnel_find(const struct net *net, u32 tunnel_id);
struct l2tp_tunnel *l2tp_tunnel_find_nth(const struct net *net, int nth);
int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id,
u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg,
struct l2tp_tunnel **tunnelp);
int l2tp_tunnel_register(struct l2tp_tunnel *tunnel, struct net *net,
struct l2tp_tunnel_cfg *cfg);
void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
struct l2tp_session *l2tp_session_create(int priv_size,

22
net/l2tp/l2tp_netlink.c
View File

@ -236,12 +236,6 @@ static int l2tp_nl_cmd_tunnel_create(struct sk_buff *skb, struct genl_info *info
if (info->attrs[L2TP_ATTR_DEBUG])
cfg.debug = nla_get_u32(info->attrs[L2TP_ATTR_DEBUG]);
tunnel = l2tp_tunnel_find(net, tunnel_id);
if (tunnel != NULL) {
ret = -EEXIST;
goto out;
}
ret = -EINVAL;
switch (cfg.encap) {
case L2TP_ENCAPTYPE_UDP:
@ -251,9 +245,19 @@ static int l2tp_nl_cmd_tunnel_create(struct sk_buff *skb, struct genl_info *info
break;
}
if (ret >= 0)
ret = l2tp_tunnel_notify(&l2tp_nl_family, info,
tunnel, L2TP_CMD_TUNNEL_CREATE);
if (ret < 0)
goto out;
l2tp_tunnel_inc_refcount(tunnel);
ret = l2tp_tunnel_register(tunnel, net, &cfg);
if (ret < 0) {
kfree(tunnel);
goto out;
}
ret = l2tp_tunnel_notify(&l2tp_nl_family, info, tunnel,
L2TP_CMD_TUNNEL_CREATE);
l2tp_tunnel_dec_refcount(tunnel);
out:
return ret;
}

9
net/l2tp/l2tp_ppp.c
View File

@ -698,6 +698,15 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
error = l2tp_tunnel_create(sock_net(sk), fd, ver, tunnel_id, peer_tunnel_id, &tcfg, &tunnel);
if (error < 0)
goto end;
l2tp_tunnel_inc_refcount(tunnel);
error = l2tp_tunnel_register(tunnel, sock_net(sk),
&tcfg);
if (error < 0) {
kfree(tunnel);
goto end;
}
drop_tunnel = true;
}
} else {
/* Error if we can't find the tunnel */

15
net/rds/send.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 Oracle. All rights reserved.
* Copyright (c) 2006, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@ -1017,10 +1017,15 @@ static int rds_send_mprds_hash(struct rds_sock *rs, struct rds_connection *conn)
if (conn->c_npaths == 0 && hash != 0) {
rds_send_ping(conn, 0);
if (conn->c_npaths == 0) {
wait_event_interruptible(conn->c_hs_waitq,
(conn->c_npaths != 0));
}
/* The underlying connection is not up yet. Need to wait
* until it is up to be sure that the non-zero c_path can be
* used. But if we are interrupted, we have to use the zero
* c_path in case the connection ends up being non-MP capable.
*/
if (conn->c_npaths == 0)
if (wait_event_interruptible(conn->c_hs_waitq,
conn->c_npaths != 0))
hash = 0;
if (conn->c_npaths == 1)
hash = 0;
}