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

Browse source 
Pull networking fixes from David Miller:
 "Some merge window fallout, some longer term fixes:

   1) Handle headroom properly in lapbether and x25_asy drivers, from
      Xie He.

   2) Fetch MAC address from correct r8152 device node, from Thierry
      Reding.

   3) In the sw kTLS path we should allow MSG_CMSG_COMPAT in sendmsg,
      from Rouven Czerwinski.

   4) Correct fdputs in socket layer, from Miaohe Lin.

   5) Revert troublesome sockptr_t optimization, from Christoph Hellwig.

   6) Fix TCP TFO key reading on big endian, from Jason Baron.

   7) Missing CAP_NET_RAW check in nfc, from Qingyu Li.

   8) Fix inet fastreuse optimization with tproxy sockets, from Tim
      Froidcoeur.

   9) Fix 64-bit divide in new SFC driver, from Edward Cree.

  10) Add a tracepoint for prandom_u32 so that we can more easily
      perform usage analysis. From Eric Dumazet.

  11) Fix rwlock imbalance in AF_PACKET, from John Ogness"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (49 commits)
  net: openvswitch: introduce common code for flushing flows
  af_packet: TPACKET_V3: fix fill status rwlock imbalance
  random32: add a tracepoint for prandom_u32()
  Revert "ipv4: tunnel: fix compilation on ARCH=um"
  net: accept an empty mask in /sys/class/net/*/queues/rx-*/rps_cpus
  net: ethernet: stmmac: Disable hardware multicast filter
  net: stmmac: dwmac1000: provide multicast filter fallback
  ipv4: tunnel: fix compilation on ARCH=um
  vsock: fix potential null pointer dereference in vsock_poll()
  sfc: fix ef100 design-param checking
  net: initialize fastreuse on inet_inherit_port
  net: refactor bind_bucket fastreuse into helper
  net: phy: marvell10g: fix null pointer dereference
  net: Fix potential memory leak in proto_register()
  net: qcom/emac: add missed clk_disable_unprepare in error path of emac_clks_phase1_init
  ionic_lif: Use devm_kcalloc() in ionic_qcq_alloc()
  net/nfc/rawsock.c: add CAP_NET_RAW check.
  hinic: fix strncpy output truncated compile warnings
  drivers/net/wan/x25_asy: Added needed_headroom and a skb->len check
  net/tls: Fix kmap usage
  ...
This commit is contained in:
Linus Torvalds 2020-08-13 20:03:11 -07:00
commit a1d21081a6
66 changed files with 496 additions and 352 deletions
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11
Documentation/bpf/bpf_design_QA.rst
View file

@ -246,17 +246,6 @@ program is loaded the kernel will print warning message, so
this helper is only useful for experiments and prototypes.
Tracing BPF programs are root only.
Q: bpf_trace_printk() helper warning
------------------------------------
Q: When bpf_trace_printk() helper is used the kernel prints nasty
warning message. Why is that?
A: This is done to nudge program authors into better interfaces when
programs need to pass data to user space. Like bpf_perf_event_output()
can be used to efficiently stream data via perf ring buffer.
BPF maps can be used for asynchronous data sharing between kernel
and user space. bpf_trace_printk() should only be used for debugging.
Q: New functionality via kernel modules?
----------------------------------------
Q: Can BPF functionality such as new program or map types, new

3
MAINTAINERS
View file

@ -11986,7 +11986,8 @@ F: include/uapi/linux/netrom.h
F: net/netrom/
NETRONOME ETHERNET DRIVERS
M: Jakub Kicinski <kuba@kernel.org>
M: Simon Horman <simon.horman@netronome.com>
R: Jakub Kicinski <kuba@kernel.org>
L: oss-drivers@netronome.com
S: Maintained
F: drivers/net/ethernet/netronome/

2
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
View file

@ -1728,7 +1728,7 @@ static int hclgevf_reset_wait(struct hclgevf_dev *hdev)
/* hardware completion status should be available by this time */
if (ret) {
dev_err(&hdev->pdev->dev,
"could'nt get reset done status from h/w, timeout!\n");
"couldn't get reset done status from h/w, timeout!\n");
return ret;
}

32
drivers/net/ethernet/huawei/hinic/hinic_devlink.c
View file

@ -334,19 +334,14 @@ void hinic_devlink_unregister(struct hinic_devlink_priv *priv)
static int chip_fault_show(struct devlink_fmsg *fmsg,
struct hinic_fault_event *event)
{
char fault_level[FAULT_TYPE_MAX][FAULT_SHOW_STR_LEN + 1] = {
"fatal", "reset", "flr", "general", "suggestion"};
char level_str[FAULT_SHOW_STR_LEN + 1] = {0};
u8 level;
const char * const level_str[FAULT_LEVEL_MAX + 1] = {
"fatal", "reset", "flr", "general", "suggestion", "Unknown"};
u8 fault_level;
int err;
level = event->event.chip.err_level;
if (level < FAULT_LEVEL_MAX)
strncpy(level_str, fault_level[level], strlen(fault_level[level]));
else
strncpy(level_str, "Unknown", strlen("Unknown"));
if (level == FAULT_LEVEL_SERIOUS_FLR) {
fault_level = (event->event.chip.err_level < FAULT_LEVEL_MAX) ?
event->event.chip.err_level : FAULT_LEVEL_MAX;
if (fault_level == FAULT_LEVEL_SERIOUS_FLR) {
err = devlink_fmsg_u32_pair_put(fmsg, "Function level err func_id",
(u32)event->event.chip.func_id);
if (err)
@ -361,7 +356,7 @@ static int chip_fault_show(struct devlink_fmsg *fmsg,
if (err)
return err;
err = devlink_fmsg_string_pair_put(fmsg, "err_level", level_str);
err = devlink_fmsg_string_pair_put(fmsg, "err_level", level_str[fault_level]);
if (err)
return err;
@ -381,18 +376,15 @@ static int chip_fault_show(struct devlink_fmsg *fmsg,
static int fault_report_show(struct devlink_fmsg *fmsg,
struct hinic_fault_event *event)
{
char fault_type[FAULT_TYPE_MAX][FAULT_SHOW_STR_LEN + 1] = {
const char * const type_str[FAULT_TYPE_MAX + 1] = {
"chip", "ucode", "mem rd timeout", "mem wr timeout",
"reg rd timeout", "reg wr timeout", "phy fault"};
char type_str[FAULT_SHOW_STR_LEN + 1] = {0};
"reg rd timeout", "reg wr timeout", "phy fault", "Unknown"};
u8 fault_type;
int err;
if (event->type < FAULT_TYPE_MAX)
strncpy(type_str, fault_type[event->type], strlen(fault_type[event->type]));
else
strncpy(type_str, "Unknown", strlen("Unknown"));
fault_type = (event->type < FAULT_TYPE_MAX) ? event->type : FAULT_TYPE_MAX;
err = devlink_fmsg_string_pair_put(fmsg, "Fault type", type_str);
err = devlink_fmsg_string_pair_put(fmsg, "Fault type", type_str[fault_type]);
if (err)
return err;

2
drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h
View file

@ -504,8 +504,6 @@ enum hinic_fault_type {
FAULT_TYPE_MAX,
};
#define FAULT_SHOW_STR_LEN 16
enum hinic_fault_err_level {
FAULT_LEVEL_FATAL,
FAULT_LEVEL_SERIOUS_RESET,

4
drivers/net/ethernet/pensando/ionic/ionic_lif.c
View file

@ -412,7 +412,7 @@ static int ionic_qcq_alloc(struct ionic_lif *lif, unsigned int type,
new->flags = flags;
new->q.info = devm_kzalloc(dev, sizeof(*new->q.info) * num_descs,
new->q.info = devm_kcalloc(dev, num_descs, sizeof(*new->q.info),
GFP_KERNEL);
if (!new->q.info) {
netdev_err(lif->netdev, "Cannot allocate queue info\n");
@ -462,7 +462,7 @@ static int ionic_qcq_alloc(struct ionic_lif *lif, unsigned int type,
new->intr.index = IONIC_INTR_INDEX_NOT_ASSIGNED;
}
new->cq.info = devm_kzalloc(dev, sizeof(*new->cq.info) * num_descs,
new->cq.info = devm_kcalloc(dev, num_descs, sizeof(*new->cq.info),
GFP_KERNEL);
if (!new->cq.info) {
netdev_err(lif->netdev, "Cannot allocate completion queue info\n");

17
drivers/net/ethernet/qualcomm/emac/emac.c
View file

@ -474,13 +474,24 @@ static int emac_clks_phase1_init(struct platform_device *pdev,
ret = clk_prepare_enable(adpt->clk[EMAC_CLK_CFG_AHB]);
if (ret)
return ret;
goto disable_clk_axi;
ret = clk_set_rate(adpt->clk[EMAC_CLK_HIGH_SPEED], 19200000);
if (ret)
return ret;
goto disable_clk_cfg_ahb;
return clk_prepare_enable(adpt->clk[EMAC_CLK_HIGH_SPEED]);
ret = clk_prepare_enable(adpt->clk[EMAC_CLK_HIGH_SPEED]);
if (ret)
goto disable_clk_cfg_ahb;
return 0;
disable_clk_cfg_ahb:
clk_disable_unprepare(adpt->clk[EMAC_CLK_CFG_AHB]);
disable_clk_axi:
clk_disable_unprepare(adpt->clk[EMAC_CLK_AXI]);
return ret;
}
/* Enable clocks; needs emac_clks_phase1_init to be called before */

3
drivers/net/ethernet/sfc/ef100_nic.c
View file

@ -979,7 +979,8 @@ static int ef100_process_design_param(struct efx_nic *efx,
* EFX_MIN_DMAQ_SIZE is divisible by GRANULARITY.
* This is very unlikely to fail.
*/
if (EFX_MIN_DMAQ_SIZE % reader->value) {
if (!reader->value || reader->value > EFX_MIN_DMAQ_SIZE ||
EFX_MIN_DMAQ_SIZE % (u32)reader->value) {
netif_err(efx, probe, efx->net_dev,
"%s size granularity is %llu, can't guarantee safety\n",
reader->type == ESE_EF100_DP_GZ_RXQ_SIZE_GRANULARITY ? "RXQ" : "TXQ",

1
drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
View file

@ -351,6 +351,7 @@ static int ipq806x_gmac_probe(struct platform_device *pdev)
plat_dat->has_gmac = true;
plat_dat->bsp_priv = gmac;
plat_dat->fix_mac_speed = ipq806x_gmac_fix_mac_speed;
plat_dat->multicast_filter_bins = 0;
err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
if (err)

3
drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
View file

@ -164,6 +164,9 @@ static void dwmac1000_set_filter(struct mac_device_info *hw,
value = GMAC_FRAME_FILTER_PR | GMAC_FRAME_FILTER_PCF;
} else if (dev->flags & IFF_ALLMULTI) {
value = GMAC_FRAME_FILTER_PM; /* pass all multi */
} else if (!netdev_mc_empty(dev) && (mcbitslog2 == 0)) {
/* Fall back to all multicast if we've no filter */
value = GMAC_FRAME_FILTER_PM;
} else if (!netdev_mc_empty(dev)) {
struct netdev_hw_addr *ha;

18
drivers/net/phy/marvell10g.c
View file

@ -208,13 +208,6 @@ static int mv3310_hwmon_config(struct phy_device *phydev, bool enable)
MV_V2_TEMP_CTRL_MASK, val);
}
static void mv3310_hwmon_disable(void *data)
{
struct phy_device *phydev = data;
mv3310_hwmon_config(phydev, false);
}
static int mv3310_hwmon_probe(struct phy_device *phydev)
{
struct device *dev = &phydev->mdio.dev;
@ -238,10 +231,6 @@ static int mv3310_hwmon_probe(struct phy_device *phydev)
if (ret)
return ret;
ret = devm_add_action_or_reset(dev, mv3310_hwmon_disable, phydev);
if (ret)
return ret;
priv->hwmon_dev = devm_hwmon_device_register_with_info(dev,
priv->hwmon_name, phydev,
&mv3310_hwmon_chip_info, NULL);
@ -426,6 +415,11 @@ static int mv3310_probe(struct phy_device *phydev)
return phy_sfp_probe(phydev, &mv3310_sfp_ops);
}
static void mv3310_remove(struct phy_device *phydev)
{
mv3310_hwmon_config(phydev, false);
}
static int mv3310_suspend(struct phy_device *phydev)
{
return mv3310_power_down(phydev);
@ -784,6 +778,7 @@ static struct phy_driver mv3310_drivers[] = {
.read_status = mv3310_read_status,
.get_tunable = mv3310_get_tunable,
.set_tunable = mv3310_set_tunable,
.remove = mv3310_remove,
},
{
.phy_id = MARVELL_PHY_ID_88E2110,
@ -798,6 +793,7 @@ static struct phy_driver mv3310_drivers[] = {
.read_status = mv3310_read_status,
.get_tunable = mv3310_get_tunable,
.set_tunable = mv3310_set_tunable,
.remove = mv3310_remove,
},
};

8
drivers/net/phy/phy_device.c
View file

@ -615,7 +615,9 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
if (c45_ids)
dev->c45_ids = *c45_ids;
dev->irq = bus->irq[addr];
dev_set_name(&mdiodev->dev, PHY_ID_FMT, bus->id, addr);
device_initialize(&mdiodev->dev);
dev->state = PHY_DOWN;
@ -649,10 +651,8 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
ret = phy_request_driver_module(dev, phy_id);
}
if (!ret) {
device_initialize(&mdiodev->dev);
} else {
kfree(dev);
if (ret) {
put_device(&mdiodev->dev);
dev = ERR_PTR(ret);
}

2
drivers/net/usb/r8152.c
View file

@ -1504,7 +1504,7 @@ static int determine_ethernet_addr(struct r8152 *tp, struct sockaddr *sa)
sa->sa_family = dev->type;
ret = eth_platform_get_mac_address(&dev->dev, sa->sa_data);
ret = eth_platform_get_mac_address(&tp->udev->dev, sa->sa_data);
if (ret < 0) {
if (tp->version == RTL_VER_01) {
ret = pla_ocp_read(tp, PLA_IDR, 8, sa->sa_data);

3
drivers/net/vmxnet3/vmxnet3_drv.c
View file

@ -886,7 +886,8 @@ vmxnet3_parse_hdr(struct sk_buff *skb, struct vmxnet3_tx_queue *tq,
switch (protocol) {
case IPPROTO_TCP:
ctx->l4_hdr_size = tcp_hdrlen(skb);
ctx->l4_hdr_size = skb->encapsulation ? inner_tcp_hdrlen(skb) :
tcp_hdrlen(skb);
break;
case IPPROTO_UDP:
ctx->l4_hdr_size = sizeof(struct udphdr);

10
drivers/net/wan/lapbether.c
View file

@ -157,6 +157,12 @@ static netdev_tx_t lapbeth_xmit(struct sk_buff *skb,
if (!netif_running(dev))
goto drop;
/* There should be a pseudo header of 1 byte added by upper layers.
* Check to make sure it is there before reading it.
*/
if (skb->len < 1)
goto drop;
switch (skb->data[0]) {
case X25_IFACE_DATA:
break;
@ -305,6 +311,7 @@ static void lapbeth_setup(struct net_device *dev)
dev->netdev_ops = &lapbeth_netdev_ops;
dev->needs_free_netdev = true;
dev->type = ARPHRD_X25;
dev->hard_header_len = 0;
dev->mtu = 1000;
dev->addr_len = 0;
}
@ -331,7 +338,8 @@ static int lapbeth_new_device(struct net_device *dev)
* then this driver prepends a length field of 2 bytes,
* then the underlying Ethernet device prepends its own header.
*/
ndev->hard_header_len = -1 + 3 + 2 + dev->hard_header_len;
ndev->needed_headroom = -1 + 3 + 2 + dev->hard_header_len
+ dev->needed_headroom;
lapbeth = netdev_priv(ndev);
lapbeth->axdev = ndev;

14
drivers/net/wan/x25_asy.c
View file

@ -307,6 +307,14 @@ static netdev_tx_t x25_asy_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
}
/* There should be a pseudo header of 1 byte added by upper layers.
* Check to make sure it is there before reading it.
*/
if (skb->len < 1) {
kfree_skb(skb);
return NETDEV_TX_OK;
}
switch (skb->data[0]) {
case X25_IFACE_DATA:
break;
@ -752,6 +760,12 @@ static void x25_asy_setup(struct net_device *dev)
dev->type = ARPHRD_X25;
dev->tx_queue_len = 10;
/* When transmitting data:
* first this driver removes a pseudo header of 1 byte,
* then the lapb module prepends an LAPB header of at most 3 bytes.
*/
dev->needed_headroom = 3 - 1;
/* New-style flags. */
dev->flags = IFF_NOARP;
}

2
include/linux/bitfield.h
View file

@ -77,7 +77,7 @@
*/
#define FIELD_FIT(_mask, _val) \
({ \
__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_FIT: "); \
__BF_FIELD_CHECK(_mask, 0ULL, 0ULL, "FIELD_FIT: "); \
!((((typeof(_mask))_val) << __bf_shf(_mask)) & ~(_mask)); \
})

10
include/linux/bpf.h
View file

@ -1214,15 +1214,17 @@ struct bpf_iter_aux_info {
struct bpf_map *map;
};
typedef int (*bpf_iter_check_target_t)(struct bpf_prog *prog,
struct bpf_iter_aux_info *aux);
typedef int (*bpf_iter_attach_target_t)(struct bpf_prog *prog,
union bpf_iter_link_info *linfo,
struct bpf_iter_aux_info *aux);
typedef void (*bpf_iter_detach_target_t)(struct bpf_iter_aux_info *aux);
#define BPF_ITER_CTX_ARG_MAX 2
struct bpf_iter_reg {
const char *target;
bpf_iter_check_target_t check_target;
bpf_iter_attach_target_t attach_target;
bpf_iter_detach_target_t detach_target;
u32 ctx_arg_info_size;
enum bpf_iter_link_info req_linfo;
struct bpf_ctx_arg_aux ctx_arg_info[BPF_ITER_CTX_ARG_MAX];
const struct bpf_iter_seq_info *seq_info;
};

26
include/linux/sockptr.h
View file

@ -8,26 +8,9 @@
#ifndef _LINUX_SOCKPTR_H
#define _LINUX_SOCKPTR_H
#include <linux/compiler.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#ifdef CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
typedef union {
void *kernel;
void __user *user;
} sockptr_t;
static inline bool sockptr_is_kernel(sockptr_t sockptr)
{
return (unsigned long)sockptr.kernel >= TASK_SIZE;
}
static inline sockptr_t KERNEL_SOCKPTR(void *p)
{
return (sockptr_t) { .kernel = p };
}
#else /* CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE */
typedef struct {
union {
void *kernel;
@ -45,15 +28,10 @@ static inline sockptr_t KERNEL_SOCKPTR(void *p)
{
return (sockptr_t) { .kernel = p, .is_kernel = true };
}
#endif /* CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE */
static inline int __must_check init_user_sockptr(sockptr_t *sp, void __user *p,
size_t size)
static inline sockptr_t USER_SOCKPTR(void __user *p)
{
if (!access_ok(p, size))
return -EFAULT;
*sp = (sockptr_t) { .user = p };
return 0;
return (sockptr_t) { .user = p };
}
static inline bool sockptr_is_null(sockptr_t sockptr)

4
include/net/inet_connection_sock.h
View file

@ -304,6 +304,10 @@ void inet_csk_listen_stop(struct sock *sk);
void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
/* update the fast reuse flag when adding a socket */
void inet_csk_update_fastreuse(struct inet_bind_bucket *tb,
struct sock *sk);
struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu);
#define TCP_PINGPONG_THRESH 3

2
include/net/tcp.h
View file

@ -1672,6 +1672,8 @@ void tcp_fastopen_destroy_cipher(struct sock *sk);
void tcp_fastopen_ctx_destroy(struct net *net);
int tcp_fastopen_reset_cipher(struct net *net, struct sock *sk,
void *primary_key, void *backup_key);
int tcp_fastopen_get_cipher(struct net *net, struct inet_connection_sock *icsk,
u64 *key);
void tcp_fastopen_add_skb(struct sock *sk, struct sk_buff *skb);
struct sock *tcp_try_fastopen(struct sock *sk, struct sk_buff *skb,
struct request_sock *req,

17
include/trace/events/random.h
View file

@ -307,6 +307,23 @@ TRACE_EVENT(urandom_read,
__entry->pool_left, __entry->input_left)
);
TRACE_EVENT(prandom_u32,
TP_PROTO(unsigned int ret),
TP_ARGS(ret),
TP_STRUCT__entry(
__field( unsigned int, ret)
),
TP_fast_assign(
__entry->ret = ret;
),
TP_printk("ret=%u" , __entry->ret)
);
#endif /* _TRACE_RANDOM_H */
/* This part must be outside protection */

15
include/uapi/linux/bpf.h
View file

@ -81,6 +81,12 @@ struct bpf_cgroup_storage_key {
__u32 attach_type; /* program attach type */
};
union bpf_iter_link_info {
struct {
__u32 map_fd;
} map;
};
/* BPF syscall commands, see bpf(2) man-page for details. */
enum bpf_cmd {
BPF_MAP_CREATE,
@ -249,13 +255,6 @@ enum bpf_link_type {
MAX_BPF_LINK_TYPE,
};
enum bpf_iter_link_info {
BPF_ITER_LINK_UNSPEC = 0,
BPF_ITER_LINK_MAP_FD = 1,
MAX_BPF_ITER_LINK_INFO,
};
/* cgroup-bpf attach flags used in BPF_PROG_ATTACH command
*
* NONE(default): No further bpf programs allowed in the subtree.
@ -623,6 +622,8 @@ union bpf_attr {
};
__u32 attach_type; /* attach type */
__u32 flags; /* extra flags */
__aligned_u64 iter_info; /* extra bpf_iter_link_info */
__u32 iter_info_len; /* iter_info length */
} link_create;
struct { /* struct used by BPF_LINK_UPDATE command */

58
kernel/bpf/bpf_iter.c
View file

@ -338,8 +338,8 @@ static void bpf_iter_link_release(struct bpf_link *link)
struct bpf_iter_link *iter_link =
container_of(link, struct bpf_iter_link, link);
if (iter_link->aux.map)
bpf_map_put_with_uref(iter_link->aux.map);
if (iter_link->tinfo->reg_info->detach_target)
iter_link->tinfo->reg_info->detach_target(&iter_link->aux);
}
static void bpf_iter_link_dealloc(struct bpf_link *link)
@ -390,15 +390,35 @@ bool bpf_link_is_iter(struct bpf_link *link)
int bpf_iter_link_attach(const union bpf_attr *attr, struct bpf_prog *prog)
{
union bpf_iter_link_info __user *ulinfo;
struct bpf_link_primer link_primer;
struct bpf_iter_target_info *tinfo;
struct bpf_iter_aux_info aux = {};
union bpf_iter_link_info linfo;
struct bpf_iter_link *link;
u32 prog_btf_id, target_fd;
u32 prog_btf_id, linfo_len;
bool existed = false;
struct bpf_map *map;
int err;
if (attr->link_create.target_fd || attr->link_create.flags)
return -EINVAL;
memset(&linfo, 0, sizeof(union bpf_iter_link_info));
ulinfo = u64_to_user_ptr(attr->link_create.iter_info);
linfo_len = attr->link_create.iter_info_len;
if (!ulinfo ^ !linfo_len)
return -EINVAL;
if (ulinfo) {
err = bpf_check_uarg_tail_zero(ulinfo, sizeof(linfo),
linfo_len);
if (err)
return err;
linfo_len = min_t(u32, linfo_len, sizeof(linfo));
if (copy_from_user(&linfo, ulinfo, linfo_len))
return -EFAULT;
}
prog_btf_id = prog->aux->attach_btf_id;
mutex_lock(&targets_mutex);
list_for_each_entry(tinfo, &targets, list) {
@ -411,13 +431,6 @@ int bpf_iter_link_attach(const union bpf_attr *attr, struct bpf_prog *prog)
if (!existed)
return -ENOENT;
/* Make sure user supplied flags are target expected. */
target_fd = attr->link_create.target_fd;
if (attr->link_create.flags != tinfo->reg_info->req_linfo)
return -EINVAL;
if (!attr->link_create.flags && target_fd)
return -EINVAL;
link = kzalloc(sizeof(*link), GFP_USER | __GFP_NOWARN);
if (!link)
return -ENOMEM;
@ -431,28 +444,15 @@ int bpf_iter_link_attach(const union bpf_attr *attr, struct bpf_prog *prog)
return err;
}
if (tinfo->reg_info->req_linfo == BPF_ITER_LINK_MAP_FD) {
map = bpf_map_get_with_uref(target_fd);
if (IS_ERR(map)) {
err = PTR_ERR(map);
goto cleanup_link;
}
aux.map = map;
err = tinfo->reg_info->check_target(prog, &aux);
if (tinfo->reg_info->attach_target) {
err = tinfo->reg_info->attach_target(prog, &linfo, &link->aux);
if (err) {
bpf_map_put_with_uref(map);
goto cleanup_link;
bpf_link_cleanup(&link_primer);
return err;
}
link->aux.map = map;
}
return bpf_link_settle(&link_primer);
cleanup_link:
bpf_link_cleanup(&link_primer);
return err;
}
static void init_seq_meta(struct bpf_iter_priv_data *priv_data,

2
kernel/bpf/core.c
View file

@ -1966,7 +1966,7 @@ void bpf_prog_array_delete_safe(struct bpf_prog_array *array,
* @index: the index of the program to replace
*
* Skips over dummy programs, by not counting them, when calculating
* the the position of the program to replace.
* the position of the program to replace.
*
* Return:
* * 0 - Success

37
kernel/bpf/map_iter.c
View file

@ -98,12 +98,21 @@ static struct bpf_iter_reg bpf_map_reg_info = {
.seq_info = &bpf_map_seq_info,
};
static int bpf_iter_check_map(struct bpf_prog *prog,
struct bpf_iter_aux_info *aux)
static int bpf_iter_attach_map(struct bpf_prog *prog,
union bpf_iter_link_info *linfo,
struct bpf_iter_aux_info *aux)
{
u32 key_acc_size, value_acc_size, key_size, value_size;
struct bpf_map *map = aux->map;
struct bpf_map *map;
bool is_percpu = false;
int err = -EINVAL;
if (!linfo->map.map_fd)
return -EBADF;
map = bpf_map_get_with_uref(linfo->map.map_fd);
if (IS_ERR(map))
return PTR_ERR(map);
if (map->map_type == BPF_MAP_TYPE_PERCPU_HASH ||
map->map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH ||
@ -112,7 +121,7 @@ static int bpf_iter_check_map(struct bpf_prog *prog,
else if (map->map_type != BPF_MAP_TYPE_HASH &&
map->map_type != BPF_MAP_TYPE_LRU_HASH &&
map->map_type != BPF_MAP_TYPE_ARRAY)
return -EINVAL;
goto put_map;
key_acc_size = prog->aux->max_rdonly_access;
value_acc_size = prog->aux->max_rdwr_access;
@ -122,10 +131,22 @@ static int bpf_iter_check_map(struct bpf_prog *prog,
else
value_size = round_up(map->value_size, 8) * num_possible_cpus();
if (key_acc_size > key_size || value_acc_size > value_size)
return -EACCES;
if (key_acc_size > key_size || value_acc_size > value_size) {
err = -EACCES;
goto put_map;
}
aux->map = map;
return 0;
put_map:
bpf_map_put_with_uref(map);
return err;
}
static void bpf_iter_detach_map(struct bpf_iter_aux_info *aux)
{
bpf_map_put_with_uref(aux->map);
}
DEFINE_BPF_ITER_FUNC(bpf_map_elem, struct bpf_iter_meta *meta,
@ -133,8 +154,8 @@ DEFINE_BPF_ITER_FUNC(bpf_map_elem, struct bpf_iter_meta *meta,
static const struct bpf_iter_reg bpf_map_elem_reg_info = {
.target = "bpf_map_elem",
.check_target = bpf_iter_check_map,
.req_linfo = BPF_ITER_LINK_MAP_FD,
.attach_target = bpf_iter_attach_map,
.detach_target = bpf_iter_detach_map,
.ctx_arg_info_size = 2,
.ctx_arg_info = {
{ offsetof(struct bpf_iter__bpf_map_elem, key),

2
kernel/bpf/syscall.c
View file

@ -3883,7 +3883,7 @@ static int tracing_bpf_link_attach(const union bpf_attr *attr, struct bpf_prog *
return -EINVAL;
}
#define BPF_LINK_CREATE_LAST_FIELD link_create.flags
#define BPF_LINK_CREATE_LAST_FIELD link_create.iter_info_len
static int link_create(union bpf_attr *attr)
{
enum bpf_prog_type ptype;

2
kernel/bpf/verifier.c
View file

@ -8294,7 +8294,7 @@ static bool stacksafe(struct bpf_func_state *old,
if (old->stack[spi].slot_type[i % BPF_REG_SIZE] !=
cur->stack[spi].slot_type[i % BPF_REG_SIZE])
/* Ex: old explored (safe) state has STACK_SPILL in
* this stack slot, but current has has STACK_MISC ->
* this stack slot, but current has STACK_MISC ->
* this verifier states are not equivalent,
* return false to continue verification of this path
*/

2
kernel/trace/bpf_trace.c
View file

@ -383,7 +383,7 @@ static DEFINE_RAW_SPINLOCK(trace_printk_lock);
#define BPF_TRACE_PRINTK_SIZE 1024
static inline __printf(1, 0) int bpf_do_trace_printk(const char *fmt, ...)
static __printf(1, 0) int bpf_do_trace_printk(const char *fmt, ...)
{
static char buf[BPF_TRACE_PRINTK_SIZE];
unsigned long flags;

2
lib/random32.c
View file

@ -39,6 +39,7 @@
#include <linux/random.h>
#include <linux/sched.h>
#include <asm/unaligned.h>
#include <trace/events/random.h>
#ifdef CONFIG_RANDOM32_SELFTEST
static void __init prandom_state_selftest(void);
@ -82,6 +83,7 @@ u32 prandom_u32(void)
u32 res;
res = prandom_u32_state(state);
trace_prandom_u32(res);
put_cpu_var(net_rand_state);
return res;

37
net/core/bpf_sk_storage.c
View file

@ -1384,18 +1384,39 @@ static int bpf_iter_init_sk_storage_map(void *priv_data,
return 0;
}
static int bpf_iter_check_map(struct bpf_prog *prog,
struct bpf_iter_aux_info *aux)
static int bpf_iter_attach_map(struct bpf_prog *prog,
union bpf_iter_link_info *linfo,
struct bpf_iter_aux_info *aux)
{
struct bpf_map *map = aux->map;
struct bpf_map *map;
int err = -EINVAL;
if (!linfo->map.map_fd)
return -EBADF;
map = bpf_map_get_with_uref(linfo->map.map_fd);
if (IS_ERR(map))
return PTR_ERR(map);
if (map->map_type != BPF_MAP_TYPE_SK_STORAGE)
return -EINVAL;
goto put_map;
if (prog->aux->max_rdonly_access > map->value_size)
return -EACCES;
if (prog->aux->max_rdonly_access > map->value_size) {
err = -EACCES;
goto put_map;
}
aux->map = map;
return 0;
put_map:
bpf_map_put_with_uref(map);
return err;
}
static void bpf_iter_detach_map(struct bpf_iter_aux_info *aux)
{
bpf_map_put_with_uref(aux->map);
}
static const struct seq_operations bpf_sk_storage_map_seq_ops = {
@ -1414,8 +1435,8 @@ static const struct bpf_iter_seq_info iter_seq_info = {
static struct bpf_iter_reg bpf_sk_storage_map_reg_info = {
.target = "bpf_sk_storage_map",
.check_target = bpf_iter_check_map,
.req_linfo = BPF_ITER_LINK_MAP_FD,
.attach_target = bpf_iter_attach_map,
.detach_target = bpf_iter_detach_map,
.ctx_arg_info_size = 2,
.ctx_arg_info = {
{ offsetof(struct bpf_iter__bpf_sk_storage_map, sk),

12
net/core/net-sysfs.c
View file

@ -757,11 +757,13 @@ static ssize_t store_rps_map(struct netdev_rx_queue *queue,
return err;
}
hk_flags = HK_FLAG_DOMAIN | HK_FLAG_WQ;
cpumask_and(mask, mask, housekeeping_cpumask(hk_flags));
if (cpumask_empty(mask)) {
free_cpumask_var(mask);
return -EINVAL;
if (!cpumask_empty(mask)) {
hk_flags = HK_FLAG_DOMAIN | HK_FLAG_WQ;
cpumask_and(mask, mask, housekeeping_cpumask(hk_flags));
if (cpumask_empty(mask)) {
free_cpumask_var(mask);
return -EINVAL;
}
}
map = kzalloc(max_t(unsigned int,

2
net/core/skbuff.c
View file

@ -4853,7 +4853,7 @@ static int skb_checksum_setup_ipv4(struct sk_buff *skb, bool recalculate)
if (err < 0)
goto out;
if (ip_hdr(skb)->frag_off & htons(IP_OFFSET | IP_MF))
if (ip_is_fragment(ip_hdr(skb)))
fragment = true;
off = ip_hdrlen(skb);

25
net/core/sock.c
View file

@ -3414,6 +3414,16 @@ static void sock_inuse_add(struct net *net, int val)
}
#endif
static void tw_prot_cleanup(struct timewait_sock_ops *twsk_prot)
{
if (!twsk_prot)
return;
kfree(twsk_prot->twsk_slab_name);
twsk_prot->twsk_slab_name = NULL;
kmem_cache_destroy(twsk_prot->twsk_slab);
twsk_prot->twsk_slab = NULL;
}
static void req_prot_cleanup(struct request_sock_ops *rsk_prot)
{
if (!rsk_prot)
@ -3484,7 +3494,7 @@ int proto_register(struct proto *prot, int alloc_slab)
prot->slab_flags,
NULL);
if (prot->twsk_prot->twsk_slab == NULL)
goto out_free_timewait_sock_slab_name;
goto out_free_timewait_sock_slab;
}
}
@ -3492,15 +3502,15 @@ int proto_register(struct proto *prot, int alloc_slab)
ret = assign_proto_idx(prot);
if (ret) {
mutex_unlock(&proto_list_mutex);
goto out_free_timewait_sock_slab_name;
goto out_free_timewait_sock_slab;
}
list_add(&prot->node, &proto_list);
mutex_unlock(&proto_list_mutex);
return ret;
out_free_timewait_sock_slab_name:
out_free_timewait_sock_slab:
if (alloc_slab && prot->twsk_prot)
kfree(prot->twsk_prot->twsk_slab_name);
tw_prot_cleanup(prot->twsk_prot);
out_free_request_sock_slab:
if (alloc_slab) {
req_prot_cleanup(prot->rsk_prot);
@ -3524,12 +3534,7 @@ void proto_unregister(struct proto *prot)
prot->slab = NULL;
req_prot_cleanup(prot->rsk_prot);
if (prot->twsk_prot != NULL && prot->twsk_prot->twsk_slab != NULL) {
kmem_cache_destroy(prot->twsk_prot->twsk_slab);
kfree(prot->twsk_prot->twsk_slab_name);
prot->twsk_prot->twsk_slab = NULL;
}
tw_prot_cleanup(prot->twsk_prot);
}
EXPORT_SYMBOL(proto_unregister);

14
net/ipv4/bpfilter/sockopt.c
View file

@ -57,18 +57,16 @@ int bpfilter_ip_set_sockopt(struct sock *sk, int optname, sockptr_t optval,
return bpfilter_mbox_request(sk, optname, optval, optlen, true);
}
int bpfilter_ip_get_sockopt(struct sock *sk, int optname,
char __user *user_optval, int __user *optlen)
int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval,
int __user *optlen)
{
sockptr_t optval;
int err, len;
int len;
if (get_user(len, optlen))
return -EFAULT;
err = init_user_sockptr(&optval, user_optval, len);
if (err)
return err;
return bpfilter_mbox_request(sk, optname, optval, len, false);
return bpfilter_mbox_request(sk, optname, USER_SOCKPTR(optval), len,
false);
}
static int __init bpfilter_sockopt_init(void)

101
net/ipv4/inet_connection_sock.c
View file

@ -296,55 +296,12 @@ static inline int sk_reuseport_match(struct inet_bind_bucket *tb,
ipv6_only_sock(sk), true, false);
}
/* Obtain a reference to a local port for the given sock,
* if snum is zero it means select any available local port.
* We try to allocate an odd port (and leave even ports for connect())
*/
int inet_csk_get_port(struct sock *sk, unsigned short snum)
void inet_csk_update_fastreuse(struct inet_bind_bucket *tb,
struct sock *sk)
{
bool reuse = sk->sk_reuse && sk->sk_state != TCP_LISTEN;
struct inet_hashinfo *hinfo = sk->sk_prot->h.hashinfo;
int ret = 1, port = snum;
struct inet_bind_hashbucket *head;
struct net *net = sock_net(sk);
struct inet_bind_bucket *tb = NULL;
kuid_t uid = sock_i_uid(sk);
int l3mdev;
bool reuse = sk->sk_reuse && sk->sk_state != TCP_LISTEN;
l3mdev = inet_sk_bound_l3mdev(sk);
if (!port) {
head = inet_csk_find_open_port(sk, &tb, &port);
if (!head)
return ret;
if (!tb)
goto tb_not_found;
goto success;
}
head = &hinfo->bhash[inet_bhashfn(net, port,
hinfo->bhash_size)];
spin_lock_bh(&head->lock);
inet_bind_bucket_for_each(tb, &head->chain)
if (net_eq(ib_net(tb), net) && tb->l3mdev == l3mdev &&
tb->port == port)
goto tb_found;
tb_not_found:
tb = inet_bind_bucket_create(hinfo->bind_bucket_cachep,
net, head, port, l3mdev);
if (!tb)
goto fail_unlock;
tb_found:
if (!hlist_empty(&tb->owners)) {
if (sk->sk_reuse == SK_FORCE_REUSE)
goto success;
if ((tb->fastreuse > 0 && reuse) ||
sk_reuseport_match(tb, sk))
goto success;
if (inet_csk_bind_conflict(sk, tb, true, true))
goto fail_unlock;
}
success:
if (hlist_empty(&tb->owners)) {
tb->fastreuse = reuse;
if (sk->sk_reuseport) {
@ -388,6 +345,58 @@ success:
tb->fastreuseport = 0;
}
}
}
/* Obtain a reference to a local port for the given sock,
* if snum is zero it means select any available local port.
* We try to allocate an odd port (and leave even ports for connect())
*/
int inet_csk_get_port(struct sock *sk, unsigned short snum)
{
bool reuse = sk->sk_reuse && sk->sk_state != TCP_LISTEN;
struct inet_hashinfo *hinfo = sk->sk_prot->h.hashinfo;
int ret = 1, port = snum;
struct inet_bind_hashbucket *head;
struct net *net = sock_net(sk);
struct inet_bind_bucket *tb = NULL;
int l3mdev;
l3mdev = inet_sk_bound_l3mdev(sk);
if (!port) {
head = inet_csk_find_open_port(sk, &tb, &port);
if (!head)
return ret;
if (!tb)
goto tb_not_found;
goto success;
}
head = &hinfo->bhash[inet_bhashfn(net, port,
hinfo->bhash_size)];
spin_lock_bh(&head->lock);
inet_bind_bucket_for_each(tb, &head->chain)
if (net_eq(ib_net(tb), net) && tb->l3mdev == l3mdev &&
tb->port == port)
goto tb_found;
tb_not_found:
tb = inet_bind_bucket_create(hinfo->bind_bucket_cachep,
net, head, port, l3mdev);
if (!tb)
goto fail_unlock;
tb_found:
if (!hlist_empty(&tb->owners)) {
if (sk->sk_reuse == SK_FORCE_REUSE)
goto success;
if ((tb->fastreuse > 0 && reuse) ||
sk_reuseport_match(tb, sk))
goto success;
if (inet_csk_bind_conflict(sk, tb, true, true))
goto fail_unlock;
}
success:
inet_csk_update_fastreuse(tb, sk);
if (!inet_csk(sk)->icsk_bind_hash)
inet_bind_hash(sk, tb, port);
WARN_ON(inet_csk(sk)->icsk_bind_hash != tb);

1
net/ipv4/inet_hashtables.c
View file

@ -163,6 +163,7 @@ int __inet_inherit_port(const struct sock *sk, struct sock *child)
return -ENOMEM;
}
}
inet_csk_update_fastreuse(tb, child);
}
inet_bind_hash(child, tb, port);
spin_unlock(&head->lock);

16
net/ipv4/sysctl_net_ipv4.c
View file

@ -301,24 +301,16 @@ static int proc_tcp_fastopen_key(struct ctl_table *table, int write,
struct ctl_table tbl = { .maxlen = ((TCP_FASTOPEN_KEY_LENGTH *
2 * TCP_FASTOPEN_KEY_MAX) +
(TCP_FASTOPEN_KEY_MAX * 5)) };
struct tcp_fastopen_context *ctx;
u32 user_key[TCP_FASTOPEN_KEY_MAX * 4];
__le32 key[TCP_FASTOPEN_KEY_MAX * 4];
u32 user_key[TCP_FASTOPEN_KEY_BUF_LENGTH / sizeof(u32)];
__le32 key[TCP_FASTOPEN_KEY_BUF_LENGTH / sizeof(__le32)];
char *backup_data;
int ret, i = 0, off = 0, n_keys = 0;
int ret, i = 0, off = 0, n_keys;
tbl.data = kmalloc(tbl.maxlen, GFP_KERNEL);
if (!tbl.data)
return -ENOMEM;
rcu_read_lock();
ctx = rcu_dereference(net->ipv4.tcp_fastopen_ctx);
if (ctx) {
n_keys = tcp_fastopen_context_len(ctx);
memcpy(&key[0], &ctx->key[0], TCP_FASTOPEN_KEY_LENGTH * n_keys);
}
rcu_read_unlock();
n_keys = tcp_fastopen_get_cipher(net, NULL, (u64 *)key);
if (!n_keys) {
memset(&key[0], 0, TCP_FASTOPEN_KEY_LENGTH);
n_keys = 1;

16
net/ipv4/tcp.c
View file

@ -3685,22 +3685,14 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
return 0;
case TCP_FASTOPEN_KEY: {
__u8 key[TCP_FASTOPEN_KEY_BUF_LENGTH];
struct tcp_fastopen_context *ctx;
unsigned int key_len = 0;
u64 key[TCP_FASTOPEN_KEY_BUF_LENGTH / sizeof(u64)];
unsigned int key_len;
if (get_user(len, optlen))
return -EFAULT;
rcu_read_lock();
ctx = rcu_dereference(icsk->icsk_accept_queue.fastopenq.ctx);
if (ctx) {
key_len = tcp_fastopen_context_len(ctx) *
TCP_FASTOPEN_KEY_LENGTH;
memcpy(&key[0], &ctx->key[0], key_len);
}
rcu_read_unlock();
key_len = tcp_fastopen_get_cipher(net, icsk, key) *
TCP_FASTOPEN_KEY_LENGTH;
len = min_t(unsigned int, len, key_len);
if (put_user(len, optlen))
return -EFAULT;

23
net/ipv4/tcp_fastopen.c
View file

@ -108,6 +108,29 @@ out:
return err;
}
int tcp_fastopen_get_cipher(struct net *net, struct inet_connection_sock *icsk,
u64 *key)
{
struct tcp_fastopen_context *ctx;
int n_keys = 0, i;
rcu_read_lock();
if (icsk)
ctx = rcu_dereference(icsk->icsk_accept_queue.fastopenq.ctx);
else
ctx = rcu_dereference(net->ipv4.tcp_fastopen_ctx);
if (ctx) {
n_keys = tcp_fastopen_context_len(ctx);
for (i = 0; i < n_keys; i++) {
put_unaligned_le64(ctx->key[i].key[0], key + (i * 2));
put_unaligned_le64(ctx->key[i].key[1], key + (i * 2) + 1);
}
}
rcu_read_unlock();
return n_keys;
}
static bool __tcp_fastopen_cookie_gen_cipher(struct request_sock *req,
struct sk_buff *syn,
const siphash_key_t *key,

6
net/mptcp/subflow.c
View file

@ -423,12 +423,12 @@ static void mptcp_sock_destruct(struct sock *sk)
* also remove the mptcp socket, via
* sock_put(ctx->conn).
*
* Problem is that the mptcp socket will not be in
* SYN_RECV state and doesn't have SOCK_DEAD flag.
* Problem is that the mptcp socket will be in
* ESTABLISHED state and will not have the SOCK_DEAD flag.
* Both result in warnings from inet_sock_destruct.
*/
if (sk->sk_state == TCP_SYN_RECV) {
if (sk->sk_state == TCP_ESTABLISHED) {
sk->sk_state = TCP_CLOSE;
WARN_ON_ONCE(sk->sk_socket);
sock_orphan(sk);

7
net/nfc/rawsock.c
View file

@ -328,10 +328,13 @@ static int rawsock_create(struct net *net, struct socket *sock,
if ((sock->type != SOCK_SEQPACKET) && (sock->type != SOCK_RAW))
return -ESOCKTNOSUPPORT;
if (sock->type == SOCK_RAW)
if (sock->type == SOCK_RAW) {
if (!capable(CAP_NET_RAW))
return -EPERM;
sock->ops = &rawsock_raw_ops;
else
} else {
sock->ops = &rawsock_ops;
}
sk = sk_alloc(net, PF_NFC, GFP_ATOMIC, nfc_proto->proto, kern);
if (!sk)

10
net/openvswitch/datapath.c
View file

@ -1756,6 +1756,7 @@ err:
/* Called with ovs_mutex. */
static void __dp_destroy(struct datapath *dp)
{
struct flow_table *table = &dp->table;
int i;
for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
@ -1774,7 +1775,14 @@ static void __dp_destroy(struct datapath *dp)
*/
ovs_dp_detach_port(ovs_vport_ovsl(dp, OVSP_LOCAL));
/* RCU destroy the flow table */
/* Flush sw_flow in the tables. RCU cb only releases resource
* such as dp, ports and tables. That may avoid some issues
* such as RCU usage warning.
*/
table_instance_flow_flush(table, ovsl_dereference(table->ti),
ovsl_dereference(table->ufid_ti));
/* RCU destroy the ports, meters and flow tables. */
call_rcu(&dp->rcu, destroy_dp_rcu);
}

35
net/openvswitch/flow_table.c
View file

@ -473,19 +473,15 @@ static void table_instance_flow_free(struct flow_table *table,
flow_mask_remove(table, flow->mask);
}
static void table_instance_destroy(struct flow_table *table,
struct table_instance *ti,
struct table_instance *ufid_ti,
bool deferred)
/* Must be called with OVS mutex held. */
void table_instance_flow_flush(struct flow_table *table,
struct table_instance *ti,
struct table_instance *ufid_ti)
{
int i;
if (!ti)
return;
BUG_ON(!ufid_ti);
if (ti->keep_flows)
goto skip_flows;
return;
for (i = 0; i < ti->n_buckets; i++) {
struct sw_flow *flow;
@ -497,18 +493,16 @@ static void table_instance_destroy(struct flow_table *table,
table_instance_flow_free(table, ti, ufid_ti,
flow, false);
ovs_flow_free(flow, deferred);
ovs_flow_free(flow, true);
}
}
}
skip_flows:
if (deferred) {
call_rcu(&ti->rcu, flow_tbl_destroy_rcu_cb);
call_rcu(&ufid_ti->rcu, flow_tbl_destroy_rcu_cb);
} else {
__table_instance_destroy(ti);
__table_instance_destroy(ufid_ti);
}
static void table_instance_destroy(struct table_instance *ti,
struct table_instance *ufid_ti)
{
call_rcu(&ti->rcu, flow_tbl_destroy_rcu_cb);
call_rcu(&ufid_ti->rcu, flow_tbl_destroy_rcu_cb);
}
/* No need for locking this function is called from RCU callback or
@ -523,7 +517,7 @@ void ovs_flow_tbl_destroy(struct flow_table *table)
call_rcu(&mc->rcu, mask_cache_rcu_cb);
call_rcu(&ma->rcu, mask_array_rcu_cb);
table_instance_destroy(table, ti, ufid_ti, false);
table_instance_destroy(ti, ufid_ti);
}
struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *ti,
@ -641,7 +635,8 @@ int ovs_flow_tbl_flush(struct flow_table *flow_table)
flow_table->count = 0;
flow_table->ufid_count = 0;
table_instance_destroy(flow_table, old_ti, old_ufid_ti, true);
table_instance_flow_flush(flow_table, old_ti, old_ufid_ti);
table_instance_destroy(old_ti, old_ufid_ti);
return 0;
err_free_ti:

3
net/openvswitch/flow_table.h
View file

@ -105,5 +105,8 @@ void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src,
bool full, const struct sw_flow_mask *mask);
void ovs_flow_masks_rebalance(struct flow_table *table);
void table_instance_flow_flush(struct flow_table *table,
struct table_instance *ti,
struct table_instance *ufid_ti);
#endif /* flow_table.h */

9
net/packet/af_packet.c
View file

@ -941,6 +941,7 @@ static int prb_queue_frozen(struct tpacket_kbdq_core *pkc)
}
static void prb_clear_blk_fill_status(struct packet_ring_buffer *rb)
__releases(&pkc->blk_fill_in_prog_lock)
{
struct tpacket_kbdq_core *pkc = GET_PBDQC_FROM_RB(rb);
@ -989,6 +990,7 @@ static void prb_fill_curr_block(char *curr,
struct tpacket_kbdq_core *pkc,
struct tpacket_block_desc *pbd,
unsigned int len)
__acquires(&pkc->blk_fill_in_prog_lock)
{
struct tpacket3_hdr *ppd;
@ -2286,8 +2288,11 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
if (do_vnet &&
virtio_net_hdr_from_skb(skb, h.raw + macoff -
sizeof(struct virtio_net_hdr),
vio_le(), true, 0))
vio_le(), true, 0)) {
if (po->tp_version == TPACKET_V3)
prb_clear_blk_fill_status(&po->rx_ring);
goto drop_n_account;
}
if (po->tp_version <= TPACKET_V2) {
packet_increment_rx_head(po, &po->rx_ring);
@ -2393,7 +2398,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
__clear_bit(slot_id, po->rx_ring.rx_owner_map);
spin_unlock(&sk->sk_receive_queue.lock);
sk->sk_data_ready(sk);
} else {
} else if (po->tp_version == TPACKET_V3) {
prb_clear_blk_fill_status(&po->rx_ring);
}

23
net/socket.c
View file

@ -500,7 +500,7 @@ static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed)
if (f.file) {
sock = sock_from_file(f.file, err);
if (likely(sock)) {
*fput_needed = f.flags;
*fput_needed = f.flags & FDPUT_FPUT;
return sock;
}
fdput(f);
@ -1325,7 +1325,7 @@ int sock_wake_async(struct socket_wq *wq, int how, int band)
case SOCK_WAKE_SPACE:
if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &wq->flags))
break;
/* fall through */
fallthrough;
case SOCK_WAKE_IO:
call_kill:
kill_fasync(&wq->fasync_list, SIGIO, band);
@ -1804,8 +1804,7 @@ int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,
ret = __sys_accept4_file(f.file, 0, upeer_sockaddr,
upeer_addrlen, flags,
rlimit(RLIMIT_NOFILE));
if (f.flags)
fput(f.file);
fdput(f);
}
return ret;
@ -1868,8 +1867,7 @@ int __sys_connect(int fd, struct sockaddr __user *uservaddr, int addrlen)
ret = move_addr_to_kernel(uservaddr, addrlen, &address);
if (!ret)
ret = __sys_connect_file(f.file, &address, addrlen, 0);
if (f.flags)
fput(f.file);
fdput(f);
}
return ret;
@ -2097,7 +2095,7 @@ static bool sock_use_custom_sol_socket(const struct socket *sock)
int __sys_setsockopt(int fd, int level, int optname, char __user *user_optval,
int optlen)
{
sockptr_t optval;
sockptr_t optval = USER_SOCKPTR(user_optval);
char *kernel_optval = NULL;
int err, fput_needed;
struct socket *sock;
@ -2105,10 +2103,6 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *user_optval,
if (optlen < 0)
return -EINVAL;
err = init_user_sockptr(&optval, user_optval, optlen);
if (err)
return err;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (!sock)
return err;
@ -3065,7 +3059,7 @@ static int __init sock_init(void)
err = register_filesystem(&sock_fs_type);
if (err)
goto out_fs;
goto out;
sock_mnt = kern_mount(&sock_fs_type);
if (IS_ERR(sock_mnt)) {
err = PTR_ERR(sock_mnt);
@ -3088,7 +3082,6 @@ out:
out_mount:
unregister_filesystem(&sock_fs_type);
out_fs:
goto out;
}
@ -3161,13 +3154,13 @@ static int ethtool_ioctl(struct net *net, struct compat_ifreq __user *ifr32)
if (rule_cnt > KMALLOC_MAX_SIZE / sizeof(u32))
return -ENOMEM;
buf_size += rule_cnt * sizeof(u32);
/* fall through */
fallthrough;
case ETHTOOL_GRXRINGS:
case ETHTOOL_GRXCLSRLCNT:
case ETHTOOL_GRXCLSRULE:
case ETHTOOL_SRXCLSRLINS:
convert_out = true;
/* fall through */
fallthrough;
case ETHTOOL_SRXCLSRLDEL:
buf_size += sizeof(struct ethtool_rxnfc);
convert_in = true;

3
net/tls/tls_device.c
View file

@ -561,7 +561,7 @@ int tls_device_sendpage(struct sock *sk, struct page *page,
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct iov_iter msg_iter;
char *kaddr = kmap(page);
char *kaddr;
struct kvec iov;
int rc;
@ -576,6 +576,7 @@ int tls_device_sendpage(struct sock *sk, struct page *page,
goto out;
}
kaddr = kmap(page);
iov.iov_base = kaddr + offset;
iov.iov_len = size;
iov_iter_kvec(&msg_iter, WRITE, &iov, 1, size);

3
net/tls/tls_sw.c
View file

@ -935,7 +935,8 @@ int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
int ret = 0;
int pending;
if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL))
if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL |
MSG_CMSG_COMPAT))
return -EOPNOTSUPP;
mutex_lock(&tls_ctx->tx_lock);

2
net/vmw_vsock/af_vsock.c
View file

@ -1032,7 +1032,7 @@ static __poll_t vsock_poll(struct file *file, struct socket *sock,
}
/* Connected sockets that can produce data can be written. */
if (sk->sk_state == TCP_ESTABLISHED) {
if (transport && sk->sk_state == TCP_ESTABLISHED) {
if (!(sk->sk_shutdown & SEND_SHUTDOWN)) {
bool space_avail_now = false;
int ret = transport->notify_poll_out(

9
tools/bpf/bpftool/iter.c
View file

@ -11,6 +11,7 @@
static int do_pin(int argc, char **argv)
{
DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, iter_opts);
union bpf_iter_link_info linfo;
const char *objfile, *path;
struct bpf_program *prog;
struct bpf_object *obj;
@ -36,6 +37,11 @@ static int do_pin(int argc, char **argv)
map_fd = map_parse_fd(&argc, &argv);
if (map_fd < 0)
return -1;
memset(&linfo, 0, sizeof(linfo));
linfo.map.map_fd = map_fd;
iter_opts.link_info = &linfo;
iter_opts.link_info_len = sizeof(linfo);
}
}
@ -57,9 +63,6 @@ static int do_pin(int argc, char **argv)
goto close_obj;
}
if (map_fd >= 0)
iter_opts.map_fd = map_fd;
link = bpf_program__attach_iter(prog, &iter_opts);
if (IS_ERR(link)) {
err = PTR_ERR(link);

1
tools/bpf/resolve_btfids/main.c
View file

@ -566,6 +566,7 @@ static int sets_patch(struct object *obj)
next = rb_next(next);
}
return 0;
}
static int symbols_patch(struct object *obj)

15
tools/include/uapi/linux/bpf.h
View file

@ -81,6 +81,12 @@ struct bpf_cgroup_storage_key {
__u32 attach_type; /* program attach type */
};
union bpf_iter_link_info {
struct {
__u32 map_fd;
} map;
};
/* BPF syscall commands, see bpf(2) man-page for details. */
enum bpf_cmd {
BPF_MAP_CREATE,
@ -249,13 +255,6 @@ enum bpf_link_type {
MAX_BPF_LINK_TYPE,
};
enum bpf_iter_link_info {
BPF_ITER_LINK_UNSPEC = 0,
BPF_ITER_LINK_MAP_FD = 1,
MAX_BPF_ITER_LINK_INFO,
};
/* cgroup-bpf attach flags used in BPF_PROG_ATTACH command
*
* NONE(default): No further bpf programs allowed in the subtree.
@ -623,6 +622,8 @@ union bpf_attr {
};
__u32 attach_type; /* attach type */
__u32 flags; /* extra flags */
__aligned_u64 iter_info; /* extra bpf_iter_link_info */
__u32 iter_info_len; /* iter_info length */
} link_create;
struct { /* struct used by BPF_LINK_UPDATE command */

3
tools/lib/bpf/bpf.c
View file

@ -599,6 +599,9 @@ int bpf_link_create(int prog_fd, int target_fd,
attr.link_create.target_fd = target_fd;
attr.link_create.attach_type = attach_type;
attr.link_create.flags = OPTS_GET(opts, flags, 0);
attr.link_create.iter_info =
ptr_to_u64(OPTS_GET(opts, iter_info, (void *)0));
attr.link_create.iter_info_len = OPTS_GET(opts, iter_info_len, 0);
return sys_bpf(BPF_LINK_CREATE, &attr, sizeof(attr));
}

5
tools/lib/bpf/bpf.h
View file

@ -168,11 +168,14 @@ LIBBPF_API int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
LIBBPF_API int bpf_prog_detach2(int prog_fd, int attachable_fd,
enum bpf_attach_type type);
union bpf_iter_link_info; /* defined in up-to-date linux/bpf.h */
struct bpf_link_create_opts {
size_t sz; /* size of this struct for forward/backward compatibility */
__u32 flags;
union bpf_iter_link_info *iter_info;
__u32 iter_info_len;
};
#define bpf_link_create_opts__last_field flags
#define bpf_link_create_opts__last_field iter_info_len
LIBBPF_API int bpf_link_create(int prog_fd, int target_fd,
enum bpf_attach_type attach_type,

2
tools/lib/bpf/btf.c
View file

@ -564,8 +564,8 @@ done:
struct btf *btf__parse_raw(const char *path)
{
struct btf *btf = NULL;
void *data = NULL;
struct btf *btf;
FILE *f = NULL;
__u16 magic;
int err = 0;

6
tools/lib/bpf/libbpf.c
View file

@ -8306,10 +8306,8 @@ bpf_program__attach_iter(struct bpf_program *prog,
if (!OPTS_VALID(opts, bpf_iter_attach_opts))
return ERR_PTR(-EINVAL);
if (OPTS_HAS(opts, map_fd)) {
target_fd = opts->map_fd;
link_create_opts.flags = BPF_ITER_LINK_MAP_FD;
}
link_create_opts.iter_info = OPTS_GET(opts, link_info, (void *)0);
link_create_opts.iter_info_len = OPTS_GET(opts, link_info_len, 0);
prog_fd = bpf_program__fd(prog);
if (prog_fd < 0) {

5
tools/lib/bpf/libbpf.h
View file

@ -267,9 +267,10 @@ LIBBPF_API struct bpf_link *bpf_map__attach_struct_ops(struct bpf_map *map);
struct bpf_iter_attach_opts {
size_t sz; /* size of this struct for forward/backward compatibility */
__u32 map_fd;
union bpf_iter_link_info *link_info;
__u32 link_info_len;
};
#define bpf_iter_attach_opts__last_field map_fd
#define bpf_iter_attach_opts__last_field link_info_len
LIBBPF_API struct bpf_link *
bpf_program__attach_iter(struct bpf_program *prog,

53
tools/testing/selftests/bpf/Makefile
View file

@ -102,7 +102,7 @@ endif
OVERRIDE_TARGETS := 1
override define CLEAN
$(call msg,CLEAN)
$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
$(Q)$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
endef
include ../lib.mk
@ -123,17 +123,21 @@ $(notdir $(TEST_GEN_PROGS) \
$(TEST_GEN_PROGS_EXTENDED) \
$(TEST_CUSTOM_PROGS)): %: $(OUTPUT)/% ;
$(OUTPUT)/%.o: %.c
$(call msg,CC,,$@)
$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
$(OUTPUT)/%:%.c
$(call msg,BINARY,,$@)
$(LINK.c) $^ $(LDLIBS) -o $@
$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
$(OUTPUT)/urandom_read: urandom_read.c
$(call msg,BINARY,,$@)
$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id
$(Q)$(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) -Wl,--build-id
$(OUTPUT)/test_stub.o: test_stub.c $(BPFOBJ)
$(call msg,CC,,$@)
$(CC) -c $(CFLAGS) -o $@ $<
$(Q)$(CC) -c $(CFLAGS) -o $@ $<
VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \
$(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
@ -142,7 +146,9 @@ VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \
/boot/vmlinux-$(shell uname -r)
VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
$(OUTPUT)/runqslower: $(BPFOBJ)
DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
$(OUTPUT)/runqslower: $(BPFOBJ) | $(DEFAULT_BPFTOOL)
$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/runqslower \
OUTPUT=$(SCRATCH_DIR)/ VMLINUX_BTF=$(VMLINUX_BTF) \
BPFOBJ=$(BPFOBJ) BPF_INCLUDE=$(INCLUDE_DIR) && \
@ -164,7 +170,6 @@ $(OUTPUT)/test_netcnt: cgroup_helpers.c
$(OUTPUT)/test_sock_fields: cgroup_helpers.c
$(OUTPUT)/test_sysctl: cgroup_helpers.c
DEFAULT_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
BPFTOOL ?= $(DEFAULT_BPFTOOL)
$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \
$(BPFOBJ) | $(BUILD_DIR)/bpftool
@ -180,15 +185,15 @@ $(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile) \
$(BUILD_DIR)/libbpf $(BUILD_DIR)/bpftool $(BUILD_DIR)/resolve_btfids $(INCLUDE_DIR):
$(call msg,MKDIR,,$@)
mkdir -p $@
$(Q)mkdir -p $@
$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) | $(BPFTOOL) $(INCLUDE_DIR)
ifeq ($(VMLINUX_H),)
$(call msg,GEN,,$@)
$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
else
$(call msg,CP,,$@)
cp "$(VMLINUX_H)" $@
$(Q)cp "$(VMLINUX_H)" $@
endif
$(RESOLVE_BTFIDS): $(BPFOBJ) | $(BUILD_DIR)/resolve_btfids \
@ -237,28 +242,28 @@ $(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
# $4 - LDFLAGS
define CLANG_BPF_BUILD_RULE
$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
($(CLANG) $3 -O2 -target bpf -emit-llvm \
$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \
-c $1 -o - || echo "BPF obj compilation failed") | \
$(LLC) -mattr=dwarfris -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
endef
# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
define CLANG_NOALU32_BPF_BUILD_RULE
$(call msg,CLNG-LLC,$(TRUNNER_BINARY),$2)
($(CLANG) $3 -O2 -target bpf -emit-llvm \
$(Q)($(CLANG) $3 -O2 -target bpf -emit-llvm \
-c $1 -o - || echo "BPF obj compilation failed") | \
$(LLC) -march=bpf -mcpu=v2 $4 -filetype=obj -o $2
endef
# Similar to CLANG_BPF_BUILD_RULE, but using native Clang and bpf LLC
define CLANG_NATIVE_BPF_BUILD_RULE
$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
($(CLANG) $3 -O2 -emit-llvm \
$(Q)($(CLANG) $3 -O2 -emit-llvm \
-c $1 -o - || echo "BPF obj compilation failed") | \
$(LLC) -march=bpf -mcpu=v3 $4 -filetype=obj -o $2
endef
# Build BPF object using GCC
define GCC_BPF_BUILD_RULE
$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
$(Q)$(BPF_GCC) $3 $4 -O2 -c $1 -o $2
endef
SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
@ -300,7 +305,7 @@ ifeq ($($(TRUNNER_OUTPUT)-dir),)
$(TRUNNER_OUTPUT)-dir := y
$(TRUNNER_OUTPUT):
$$(call msg,MKDIR,,$$@)
mkdir -p $$@
$(Q)mkdir -p $$@
endif
# ensure we set up BPF objects generation rule just once for a given
@ -320,7 +325,7 @@ $(TRUNNER_BPF_SKELS): $(TRUNNER_OUTPUT)/%.skel.h: \
$(TRUNNER_OUTPUT)/%.o \
| $(BPFTOOL) $(TRUNNER_OUTPUT)
$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
$$(BPFTOOL) gen skeleton $$< > $$@
$(Q)$$(BPFTOOL) gen skeleton $$< > $$@
endif
# ensure we set up tests.h header generation rule just once
@ -344,7 +349,7 @@ $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o: \
$(TRUNNER_BPF_SKELS) \
$$(BPFOBJ) | $(TRUNNER_OUTPUT)
$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
$(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
%.c \
@ -352,13 +357,13 @@ $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o: \
$(TRUNNER_TESTS_HDR) \
$$(BPFOBJ) | $(TRUNNER_OUTPUT)
$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
# only copy extra resources if in flavored build
$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
ifneq ($2,)
$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
cp -a $$^ $(TRUNNER_OUTPUT)/
$(Q)cp -a $$^ $(TRUNNER_OUTPUT)/
endif
$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \
@ -366,8 +371,8 @@ $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS) \
$(RESOLVE_BTFIDS) \
| $(TRUNNER_BINARY)-extras
$$(call msg,BINARY,,$$@)
$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@
$(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) -o $$@
$(Q)$(RESOLVE_BTFIDS) --no-fail --btf btf_data.o $$@
endef
@ -420,17 +425,17 @@ verifier/tests.h: verifier/*.c
) > verifier/tests.h)
$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
$(call msg,BINARY,,$@)
$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
# Make sure we are able to include and link libbpf against c++.
$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
$(call msg,CXX,,$@)
$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
$(Q)$(CXX) $(CFLAGS) $^ $(LDLIBS) -o $@
# Benchmark runner
$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h
$(call msg,CC,,$@)
$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
@ -443,7 +448,7 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o $(OUTPUT)/testing_helpers.o \
$(OUTPUT)/bench_trigger.o \
$(OUTPUT)/bench_ringbufs.o
$(call msg,BINARY,,$@)
$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
$(Q)$(CC) $(LDFLAGS) -o $@ $(filter %.a %.o,$^) $(LDLIBS)
EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) \
prog_tests/tests.h map_tests/tests.h verifier/tests.h \

40
tools/testing/selftests/bpf/prog_tests/bpf_iter.c
View file

@ -468,6 +468,7 @@ static void test_bpf_hash_map(void)
DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
struct bpf_iter_bpf_hash_map *skel;
int err, i, len, map_fd, iter_fd;
union bpf_iter_link_info linfo;
__u64 val, expected_val = 0;
struct bpf_link *link;
struct key_t {
@ -490,13 +491,16 @@ static void test_bpf_hash_map(void)
goto out;
/* iterator with hashmap2 and hashmap3 should fail */
opts.map_fd = bpf_map__fd(skel->maps.hashmap2);
memset(&linfo, 0, sizeof(linfo));
linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap2);
opts.link_info = &linfo;
opts.link_info_len = sizeof(linfo);
link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
if (CHECK(!IS_ERR(link), "attach_iter",
"attach_iter for hashmap2 unexpected succeeded\n"))
goto out;
opts.map_fd = bpf_map__fd(skel->maps.hashmap3);
linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap3);
link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
if (CHECK(!IS_ERR(link), "attach_iter",
"attach_iter for hashmap3 unexpected succeeded\n"))
@ -519,7 +523,7 @@ static void test_bpf_hash_map(void)
goto out;
}
opts.map_fd = map_fd;
linfo.map.map_fd = map_fd;
link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
goto out;
@ -562,6 +566,7 @@ static void test_bpf_percpu_hash_map(void)
DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
struct bpf_iter_bpf_percpu_hash_map *skel;
int err, i, j, len, map_fd, iter_fd;
union bpf_iter_link_info linfo;
__u32 expected_val = 0;
struct bpf_link *link;
struct key_t {
@ -606,7 +611,10 @@ static void test_bpf_percpu_hash_map(void)
goto out;
}
opts.map_fd = map_fd;
memset(&linfo, 0, sizeof(linfo));
linfo.map.map_fd = map_fd;
opts.link_info = &linfo;
opts.link_info_len = sizeof(linfo);
link = bpf_program__attach_iter(skel->progs.dump_bpf_percpu_hash_map, &opts);
if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
goto out;
@ -649,6 +657,7 @@ static void test_bpf_array_map(void)
DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
__u32 expected_key = 0, res_first_key;
struct bpf_iter_bpf_array_map *skel;
union bpf_iter_link_info linfo;
int err, i, map_fd, iter_fd;
struct bpf_link *link;
char buf[64] = {};
@ -673,7 +682,10 @@ static void test_bpf_array_map(void)
goto out;
}
opts.map_fd = map_fd;
memset(&linfo, 0, sizeof(linfo));
linfo.map.map_fd = map_fd;
opts.link_info = &linfo;
opts.link_info_len = sizeof(linfo);
link = bpf_program__attach_iter(skel->progs.dump_bpf_array_map, &opts);
if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
goto out;
@ -730,6 +742,7 @@ static void test_bpf_percpu_array_map(void)
DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
struct bpf_iter_bpf_percpu_array_map *skel;
__u32 expected_key = 0, expected_val = 0;
union bpf_iter_link_info linfo;
int err, i, j, map_fd, iter_fd;
struct bpf_link *link;
char buf[64];
@ -765,7 +778,10 @@ static void test_bpf_percpu_array_map(void)
goto out;
}
opts.map_fd = map_fd;
memset(&linfo, 0, sizeof(linfo));
linfo.map.map_fd = map_fd;
opts.link_info = &linfo;
opts.link_info_len = sizeof(linfo);
link = bpf_program__attach_iter(skel->progs.dump_bpf_percpu_array_map, &opts);
if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
goto out;
@ -803,6 +819,7 @@ static void test_bpf_sk_storage_map(void)
DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
int err, i, len, map_fd, iter_fd, num_sockets;
struct bpf_iter_bpf_sk_storage_map *skel;
union bpf_iter_link_info linfo;
int sock_fd[3] = {-1, -1, -1};
__u32 val, expected_val = 0;
struct bpf_link *link;
@ -829,7 +846,10 @@ static void test_bpf_sk_storage_map(void)
goto out;
}
opts.map_fd = map_fd;
memset(&linfo, 0, sizeof(linfo));
linfo.map.map_fd = map_fd;
opts.link_info = &linfo;
opts.link_info_len = sizeof(linfo);
link = bpf_program__attach_iter(skel->progs.dump_bpf_sk_storage_map, &opts);
if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n"))
goto out;
@ -871,6 +891,7 @@ static void test_rdonly_buf_out_of_bound(void)
{
DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
struct bpf_iter_test_kern5 *skel;
union bpf_iter_link_info linfo;
struct bpf_link *link;
skel = bpf_iter_test_kern5__open_and_load();
@ -878,7 +899,10 @@ static void test_rdonly_buf_out_of_bound(void)
"skeleton open_and_load failed\n"))
return;
opts.map_fd = bpf_map__fd(skel->maps.hashmap1);
memset(&linfo, 0, sizeof(linfo));
linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap1);
opts.link_info = &linfo;
opts.link_info_len = sizeof(linfo);
link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
if (CHECK(!IS_ERR(link), "attach_iter", "unexpected success\n"))
bpf_link__destroy(link);

18
tools/testing/selftests/bpf/prog_tests/send_signal.c
View file

@ -48,21 +48,19 @@ static void test_send_signal_common(struct perf_event_attr *attr,
close(pipe_p2c[1]); /* close write */
/* notify parent signal handler is installed */
write(pipe_c2p[1], buf, 1);
CHECK(write(pipe_c2p[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
/* make sure parent enabled bpf program to send_signal */
read(pipe_p2c[0], buf, 1);
CHECK(read(pipe_p2c[0], buf, 1) != 1, "pipe_read", "err %d\n", -errno);
/* wait a little for signal handler */
sleep(1);
if (sigusr1_received)
write(pipe_c2p[1], "2", 1);
else
write(pipe_c2p[1], "0", 1);
buf[0] = sigusr1_received ? '2' : '0';
CHECK(write(pipe_c2p[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
/* wait for parent notification and exit */
read(pipe_p2c[0], buf, 1);
CHECK(read(pipe_p2c[0], buf, 1) != 1, "pipe_read", "err %d\n", -errno);
close(pipe_c2p[1]);
close(pipe_p2c[0]);
@ -99,7 +97,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
}
/* wait until child signal handler installed */
read(pipe_c2p[0], buf, 1);
CHECK(read(pipe_c2p[0], buf, 1) != 1, "pipe_read", "err %d\n", -errno);
/* trigger the bpf send_signal */
skel->bss->pid = pid;
@ -107,7 +105,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
skel->bss->signal_thread = signal_thread;
/* notify child that bpf program can send_signal now */
write(pipe_p2c[1], buf, 1);
CHECK(write(pipe_p2c[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
/* wait for result */
err = read(pipe_c2p[0], buf, 1);
@ -121,7 +119,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
CHECK(buf[0] != '2', test_name, "incorrect result\n");
/* notify child safe to exit */
write(pipe_p2c[1], buf, 1);
CHECK(write(pipe_p2c[1], buf, 1) != 1, "pipe_write", "err %d\n", -errno);
disable_pmu:
close(pmu_fd);

4
tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
View file

@ -6,11 +6,13 @@ static __u64 read_perf_max_sample_freq(void)
{
__u64 sample_freq = 5000; /* fallback to 5000 on error */
FILE *f;
__u32 duration = 0;
f = fopen("/proc/sys/kernel/perf_event_max_sample_rate", "r");
if (f == NULL)
return sample_freq;
fscanf(f, "%llu", &sample_freq);
CHECK(fscanf(f, "%llu", &sample_freq) != 1, "Get max sample rate",
"return default value: 5000,err %d\n", -errno);
fclose(f);
return sample_freq;
}

1
tools/testing/selftests/bpf/settings Normal file
View file

@ -0,0 +1 @@
timeout=0

13
tools/testing/selftests/bpf/test_tcpnotify_user.c
View file

@ -124,17 +124,24 @@ int main(int argc, char **argv)
sprintf(test_script,
"iptables -A INPUT -p tcp --dport %d -j DROP",
TESTPORT);
system(test_script);
if (system(test_script)) {
printf("FAILED: execute command: %s, err %d\n", test_script, -errno);
goto err;
}
sprintf(test_script,
"nc 127.0.0.1 %d < /etc/passwd > /dev/null 2>&1 ",
TESTPORT);
system(test_script);
if (system(test_script))
printf("execute command: %s, err %d\n", test_script, -errno);
sprintf(test_script,
"iptables -D INPUT -p tcp --dport %d -j DROP",
TESTPORT);
system(test_script);
if (system(test_script)) {
printf("FAILED: execute command: %s, err %d\n", test_script, -errno);
goto err;
}
rv = bpf_map_lookup_elem(bpf_map__fd(global_map), &key, &g);
if (rv != 0) {

2
tools/testing/selftests/net/mptcp/config
View file

@ -1,4 +1,6 @@
CONFIG_MPTCP=y
CONFIG_MPTCP_IPV6=y
CONFIG_INET_DIAG=m
CONFIG_INET_MPTCP_DIAG=m
CONFIG_VETH=y
CONFIG_NET_SCH_NETEM=m

9
tools/testing/selftests/net/mptcp/mptcp_connect.c
View file

@ -406,10 +406,11 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd)
/* ... but we still receive.
* Close our write side, ev. give some time
* for address notification
* for address notification and/or checking
* the current status
*/
if (cfg_join)
usleep(400000);
if (cfg_wait)
usleep(cfg_wait);
shutdown(peerfd, SHUT_WR);
} else {
if (errno == EINTR)
@ -427,7 +428,7 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd)
}
/* leave some time for late join/announce */
if (cfg_wait)
if (cfg_join)
usleep(cfg_wait);
close(peerfd);