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Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

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Andrii Nakryiko says:

====================
 bpf-next 2022-07-29

We've added 22 non-merge commits during the last 4 day(s) which contain
a total of 27 files changed, 763 insertions(+), 120 deletions(-).

The main changes are:

1) Fixes to allow setting any source IP with bpf_skb_set_tunnel_key() helper,
   from Paul Chaignon.

2) Fix for bpf_xdp_pointer() helper when doing sanity checking, from Joanne Koong.

3) Fix for XDP frame length calculation, from Lorenzo Bianconi.

4) Libbpf BPF_KSYSCALL docs improvements and fixes to selftests to accommodate
   s390x quirks with socketcall(), from Ilya Leoshkevich.

5) Allow/denylist and CI configs additions to selftests/bpf to improve BPF CI,
   from Daniel Müller.

6) BPF trampoline + ftrace follow up fixes, from Song Liu and Xu Kuohai.

7) Fix allocation warnings in netdevsim, from Jakub Kicinski.

8) bpf_obj_get_opts() libbpf API allowing to provide file flags, from Joe Burton.

9) vsnprintf usage fix in bpf_snprintf_btf(), from Fedor Tokarev.

10) Various small fixes and clean ups, from Daniel Müller, Rongguang Wei,
    Jörn-Thorben Hinz, Yang Li.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (22 commits)
  bpf: Remove unneeded semicolon
  libbpf: Add bpf_obj_get_opts()
  netdevsim: Avoid allocation warnings triggered from user space
  bpf: Fix NULL pointer dereference when registering bpf trampoline
  bpf: Fix test_progs -j error with fentry/fexit tests
  selftests/bpf: Bump internal send_signal/send_signal_tracepoint timeout
  bpftool: Don't try to return value from void function in skeleton
  bpftool: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE macro
  bpf: btf: Fix vsnprintf return value check
  libbpf: Support PPC in arch_specific_syscall_pfx
  selftests/bpf: Adjust vmtest.sh to use local kernel configuration
  selftests/bpf: Copy over libbpf configs
  selftests/bpf: Sort configuration
  selftests/bpf: Attach to socketcall() in test_probe_user
  libbpf: Extend BPF_KSYSCALL documentation
  bpf, devmap: Compute proper xdp_frame len redirecting frames
  bpf: Fix bpf_xdp_pointer return pointer
  selftests/bpf: Don't assign outer source IP to host
  bpf: Set flow flag to allow any source IP in bpf_tunnel_key
  geneve: Use ip_tunnel_key flow flags in route lookups
  ...
====================

Link: https://lore.kernel.org/r/20220729230948.1313527-1-andrii@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2022-07-29 19:04:28 -07:00
commit 5fc7c5887c
27 changed files with 767 additions and 124 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/geneve.c
View File

@ -815,6 +815,7 @@ static struct rtable *geneve_get_v4_rt(struct sk_buff *skb,
fl4->saddr = info->key.u.ipv4.src;
fl4->fl4_dport = dport;
fl4->fl4_sport = sport;
fl4->flowi4_flags = info->key.flow_flags;
tos = info->key.tos;
if ((tos == 1) && !geneve->cfg.collect_md) {

8
drivers/net/netdevsim/bpf.c
View File

@ -351,10 +351,12 @@ nsim_map_alloc_elem(struct bpf_offloaded_map *offmap, unsigned int idx)
{
struct nsim_bpf_bound_map *nmap = offmap->dev_priv;
nmap->entry[idx].key = kmalloc(offmap->map.key_size, GFP_USER);
nmap->entry[idx].key = kmalloc(offmap->map.key_size,
GFP_KERNEL_ACCOUNT | __GFP_NOWARN);
if (!nmap->entry[idx].key)
return -ENOMEM;
nmap->entry[idx].value = kmalloc(offmap->map.value_size, GFP_USER);
nmap->entry[idx].value = kmalloc(offmap->map.value_size,
GFP_KERNEL_ACCOUNT | __GFP_NOWARN);
if (!nmap->entry[idx].value) {
kfree(nmap->entry[idx].key);
nmap->entry[idx].key = NULL;
@ -496,7 +498,7 @@ nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap)
if (offmap->map.map_flags)
return -EINVAL;
nmap = kzalloc(sizeof(*nmap), GFP_USER);
nmap = kzalloc(sizeof(*nmap), GFP_KERNEL_ACCOUNT);
if (!nmap)
return -ENOMEM;

11
drivers/net/vxlan/vxlan_core.c
View File

@ -2243,7 +2243,7 @@ static struct rtable *vxlan_get_route(struct vxlan_dev *vxlan, struct net_device
struct vxlan_sock *sock4,
struct sk_buff *skb, int oif, u8 tos,
__be32 daddr, __be32 *saddr, __be16 dport, __be16 sport,
struct dst_cache *dst_cache,
__u8 flow_flags, struct dst_cache *dst_cache,
const struct ip_tunnel_info *info)
{
bool use_cache = ip_tunnel_dst_cache_usable(skb, info);
@ -2270,6 +2270,7 @@ static struct rtable *vxlan_get_route(struct vxlan_dev *vxlan, struct net_device
fl4.saddr = *saddr;
fl4.fl4_dport = dport;
fl4.fl4_sport = sport;
fl4.flowi4_flags = flow_flags;
rt = ip_route_output_key(vxlan->net, &fl4);
if (!IS_ERR(rt)) {
@ -2459,7 +2460,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
unsigned int pkt_len = skb->len;
__be16 src_port = 0, dst_port;
struct dst_entry *ndst = NULL;
__u8 tos, ttl;
__u8 tos, ttl, flow_flags = 0;
int ifindex;
int err;
u32 flags = vxlan->cfg.flags;
@ -2525,6 +2526,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
}
dst = &remote_ip;
dst_port = info->key.tp_dst ? : vxlan->cfg.dst_port;
flow_flags = info->key.flow_flags;
vni = tunnel_id_to_key32(info->key.tun_id);
ifindex = 0;
dst_cache = &info->dst_cache;
@ -2555,7 +2557,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
rt = vxlan_get_route(vxlan, dev, sock4, skb, ifindex, tos,
dst->sin.sin_addr.s_addr,
&local_ip.sin.sin_addr.s_addr,
dst_port, src_port,
dst_port, src_port, flow_flags,
dst_cache, info);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
@ -3061,7 +3063,8 @@ static int vxlan_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb)
rt = vxlan_get_route(vxlan, dev, sock4, skb, 0, info->key.tos,
info->key.u.ipv4.dst,
&info->key.u.ipv4.src, dport, sport,
&info->dst_cache, info);
info->key.flow_flags, &info->dst_cache,
info);
if (IS_ERR(rt))
return PTR_ERR(rt);
ip_rt_put(rt);

1
include/net/ip_tunnels.h
View File

@ -54,6 +54,7 @@ struct ip_tunnel_key {
__be32 label; /* Flow Label for IPv6 */
__be16 tp_src;
__be16 tp_dst;
__u8 flow_flags;
};
/* Flags for ip_tunnel_info mode. */

2
kernel/bpf/btf.c
View File

@ -6643,7 +6643,7 @@ static void btf_snprintf_show(struct btf_show *show, const char *fmt,
if (len < 0) {
ssnprintf->len_left = 0;
ssnprintf->len = len;
} else if (len > ssnprintf->len_left) {
} else if (len >= ssnprintf->len_left) {
/* no space, drive on to get length we would have written */
ssnprintf->len_left = 0;
ssnprintf->len += len;

4
kernel/bpf/devmap.c
View File

@ -477,7 +477,7 @@ static inline int __xdp_enqueue(struct net_device *dev, struct xdp_frame *xdpf,
if (!dev->netdev_ops->ndo_xdp_xmit)
return -EOPNOTSUPP;
err = xdp_ok_fwd_dev(dev, xdpf->len);
err = xdp_ok_fwd_dev(dev, xdp_get_frame_len(xdpf));
if (unlikely(err))
return err;
@ -536,7 +536,7 @@ static bool is_valid_dst(struct bpf_dtab_netdev *obj, struct xdp_frame *xdpf)
!obj->dev->netdev_ops->ndo_xdp_xmit)
return false;
if (xdp_ok_fwd_dev(obj->dev, xdpf->len))
if (xdp_ok_fwd_dev(obj->dev, xdp_get_frame_len(xdpf)))
return false;
return true;

9
kernel/bpf/trampoline.c
View File

@ -98,7 +98,7 @@ static int bpf_tramp_ftrace_ops_func(struct ftrace_ops *ops, enum ftrace_ops_cmd
default:
ret = -EINVAL;
break;
};
}
mutex_unlock(&tr->mutex);
return ret;
@ -248,14 +248,17 @@ static int register_fentry(struct bpf_trampoline *tr, void *new_addr)
int ret;
faddr = ftrace_location((unsigned long)ip);
if (faddr)
if (faddr) {
if (!tr->fops)
return -ENOTSUPP;
tr->func.ftrace_managed = true;
}
if (bpf_trampoline_module_get(tr))
return -ENOENT;
if (tr->func.ftrace_managed) {
ftrace_set_filter_ip(tr->fops, (unsigned long)ip, 0, 0);
ftrace_set_filter_ip(tr->fops, (unsigned long)ip, 0, 1);
ret = register_ftrace_direct_multi(tr->fops, (long)new_addr);
} else {
ret = bpf_arch_text_poke(ip, BPF_MOD_CALL, NULL, new_addr);

3
net/core/filter.c
View File

@ -3918,7 +3918,7 @@ static void *bpf_xdp_pointer(struct xdp_buff *xdp, u32 offset, u32 len)
offset -= frag_size;
}
out:
return offset + len < size ? addr + offset : NULL;
return offset + len <= size ? addr + offset : NULL;
}
BPF_CALL_4(bpf_xdp_load_bytes, struct xdp_buff *, xdp, u32, offset,
@ -4653,6 +4653,7 @@ BPF_CALL_4(bpf_skb_set_tunnel_key, struct sk_buff *, skb,
} else {
info->key.u.ipv4.dst = cpu_to_be32(from->remote_ipv4);
info->key.u.ipv4.src = cpu_to_be32(from->local_ipv4);
info->key.flow_flags = FLOWI_FLAG_ANYSRC;
}
return 0;

2
tools/bpf/bpftool/gen.c
View File

@ -1175,7 +1175,7 @@ static int do_skeleton(int argc, char **argv)
static inline void \n\
%1$s__detach(struct %1$s *obj) \n\
{ \n\
return bpf_object__detach_skeleton(obj->skeleton); \n\
bpf_object__detach_skeleton(obj->skeleton); \n\
} \n\
",
obj_name

2
tools/bpf/bpftool/prog.c
View File

@ -1962,7 +1962,7 @@ static int profile_parse_metrics(int argc, char **argv)
int selected_cnt = 0;
unsigned int i;
metric_cnt = sizeof(metrics) / sizeof(struct profile_metric);
metric_cnt = ARRAY_SIZE(metrics);
while (argc > 0) {
for (i = 0; i < metric_cnt; i++) {

9
tools/lib/bpf/bpf.c
View File

@ -578,12 +578,21 @@ int bpf_obj_pin(int fd, const char *pathname)
}
int bpf_obj_get(const char *pathname)
{
return bpf_obj_get_opts(pathname, NULL);
}
int bpf_obj_get_opts(const char *pathname, const struct bpf_obj_get_opts *opts)
{
union bpf_attr attr;
int fd;
if (!OPTS_VALID(opts, bpf_obj_get_opts))
return libbpf_err(-EINVAL);
memset(&attr, 0, sizeof(attr));
attr.pathname = ptr_to_u64((void *)pathname);
attr.file_flags = OPTS_GET(opts, file_flags, 0);
fd = sys_bpf_fd(BPF_OBJ_GET, &attr, sizeof(attr));
return libbpf_err_errno(fd);

11
tools/lib/bpf/bpf.h
View File

@ -270,8 +270,19 @@ LIBBPF_API int bpf_map_update_batch(int fd, const void *keys, const void *values
__u32 *count,
const struct bpf_map_batch_opts *opts);
struct bpf_obj_get_opts {
size_t sz; /* size of this struct for forward/backward compatibility */
__u32 file_flags;
size_t :0;
};
#define bpf_obj_get_opts__last_field file_flags
LIBBPF_API int bpf_obj_pin(int fd, const char *pathname);
LIBBPF_API int bpf_obj_get(const char *pathname);
LIBBPF_API int bpf_obj_get_opts(const char *pathname,
const struct bpf_obj_get_opts *opts);
struct bpf_prog_attach_opts {
size_t sz; /* size of this struct for forward/backward compatibility */

15
tools/lib/bpf/bpf_tracing.h
View File

@ -523,10 +523,17 @@ static __always_inline typeof(name(0)) ____##name(struct pt_regs *ctx, ##args)
* Original struct pt_regs * context is preserved as 'ctx' argument. This might
* be necessary when using BPF helpers like bpf_perf_event_output().
*
* At the moment BPF_KSYSCALL does not handle all the calling convention
* quirks for mmap(), clone() and compat syscalls transparrently. This may or
* may not change in the future. User needs to take extra measures to handle
* such quirks explicitly, if necessary.
* At the moment BPF_KSYSCALL does not transparently handle all the calling
* convention quirks for the following syscalls:
*
* - mmap(): __ARCH_WANT_SYS_OLD_MMAP.
* - clone(): CONFIG_CLONE_BACKWARDS, CONFIG_CLONE_BACKWARDS2 and
* CONFIG_CLONE_BACKWARDS3.
* - socket-related syscalls: __ARCH_WANT_SYS_SOCKETCALL.
* - compat syscalls.
*
* This may or may not change in the future. User needs to take extra measures
* to handle such quirks explicitly, if necessary.
*
* This macro relies on BPF CO-RE support and virtual __kconfig externs.
*/

11
tools/lib/bpf/libbpf.c
View File

@ -9995,6 +9995,10 @@ static const char *arch_specific_syscall_pfx(void)
return "mips";
#elif defined(__riscv)
return "riscv";
#elif defined(__powerpc__)
return "powerpc";
#elif defined(__powerpc64__)
return "powerpc64";
#else
return NULL;
#endif
@ -10127,8 +10131,13 @@ struct bpf_link *bpf_program__attach_ksyscall(const struct bpf_program *prog,
return libbpf_err_ptr(-EINVAL);
if (kernel_supports(prog->obj, FEAT_SYSCALL_WRAPPER)) {
/* arch_specific_syscall_pfx() should never return NULL here
* because it is guarded by kernel_supports(). However, since
* compiler does not know that we have an explicit conditional
* as well.
*/
snprintf(func_name, sizeof(func_name), "__%s_sys_%s",
arch_specific_syscall_pfx(), syscall_name);
arch_specific_syscall_pfx() ? : "", syscall_name);
} else {
snprintf(func_name, sizeof(func_name), "__se_sys_%s", syscall_name);
}

1
tools/lib/bpf/libbpf.map
View File

@ -355,6 +355,7 @@ LIBBPF_0.8.0 {
LIBBPF_1.0.0 {
global:
bpf_obj_get_opts;
bpf_prog_query_opts;
bpf_program__attach_ksyscall;
btf__add_enum64;

6
tools/testing/selftests/bpf/DENYLIST Normal file
View File

@ -0,0 +1,6 @@
# TEMPORARY
get_stack_raw_tp # spams with kernel warnings until next bpf -> bpf-next merge
stacktrace_build_id_nmi
stacktrace_build_id
task_fd_query_rawtp
varlen

67
tools/testing/selftests/bpf/DENYLIST.s390x Normal file
View File

@ -0,0 +1,67 @@
# TEMPORARY
atomics # attach(add): actual -524 <= expected 0 (trampoline)
bpf_iter_setsockopt # JIT does not support calling kernel function (kfunc)
bloom_filter_map # failed to find kernel BTF type ID of '__x64_sys_getpgid': -3 (?)
bpf_tcp_ca # JIT does not support calling kernel function (kfunc)
bpf_loop # attaches to __x64_sys_nanosleep
bpf_mod_race # BPF trampoline
bpf_nf # JIT does not support calling kernel function
core_read_macros # unknown func bpf_probe_read#4 (overlapping)
d_path # failed to auto-attach program 'prog_stat': -524 (trampoline)
dummy_st_ops # test_run unexpected error: -524 (errno 524) (trampoline)
fentry_fexit # fentry attach failed: -524 (trampoline)
fentry_test # fentry_first_attach unexpected error: -524 (trampoline)
fexit_bpf2bpf # freplace_attach_trace unexpected error: -524 (trampoline)
fexit_sleep # fexit_skel_load fexit skeleton failed (trampoline)
fexit_stress # fexit attach failed prog 0 failed: -524 (trampoline)
fexit_test # fexit_first_attach unexpected error: -524 (trampoline)
get_func_args_test # trampoline
get_func_ip_test # get_func_ip_test__attach unexpected error: -524 (trampoline)
get_stack_raw_tp # user_stack corrupted user stack (no backchain userspace)
kfree_skb # attach fentry unexpected error: -524 (trampoline)
kfunc_call # 'bpf_prog_active': not found in kernel BTF (?)
ksyms_module # test_ksyms_module__open_and_load unexpected error: -9 (?)
ksyms_module_libbpf # JIT does not support calling kernel function (kfunc)
ksyms_module_lskel # test_ksyms_module_lskel__open_and_load unexpected error: -9 (?)
modify_return # modify_return attach failed: -524 (trampoline)
module_attach # skel_attach skeleton attach failed: -524 (trampoline)
mptcp
kprobe_multi_test # relies on fentry
netcnt # failed to load BPF skeleton 'netcnt_prog': -7 (?)
probe_user # check_kprobe_res wrong kprobe res from probe read (?)
recursion # skel_attach unexpected error: -524 (trampoline)
ringbuf # skel_load skeleton load failed (?)
sk_assign # Can't read on server: Invalid argument (?)
sk_lookup # endianness problem
sk_storage_tracing # test_sk_storage_tracing__attach unexpected error: -524 (trampoline)
skc_to_unix_sock # could not attach BPF object unexpected error: -524 (trampoline)
socket_cookie # prog_attach unexpected error: -524 (trampoline)
stacktrace_build_id # compare_map_keys stackid_hmap vs. stackmap err -2 errno 2 (?)
tailcalls # tail_calls are not allowed in non-JITed programs with bpf-to-bpf calls (?)
task_local_storage # failed to auto-attach program 'trace_exit_creds': -524 (trampoline)
test_bpffs # bpffs test failed 255 (iterator)
test_bprm_opts # failed to auto-attach program 'secure_exec': -524 (trampoline)
test_ima # failed to auto-attach program 'ima': -524 (trampoline)
test_local_storage # failed to auto-attach program 'unlink_hook': -524 (trampoline)
test_lsm # failed to find kernel BTF type ID of '__x64_sys_setdomainname': -3 (?)
test_overhead # attach_fentry unexpected error: -524 (trampoline)
test_profiler # unknown func bpf_probe_read_str#45 (overlapping)
timer # failed to auto-attach program 'test1': -524 (trampoline)
timer_crash # trampoline
timer_mim # failed to auto-attach program 'test1': -524 (trampoline)
trace_ext # failed to auto-attach program 'test_pkt_md_access_new': -524 (trampoline)
trace_printk # trace_printk__load unexpected error: -2 (errno 2) (?)
trace_vprintk # trace_vprintk__open_and_load unexpected error: -9 (?)
trampoline_count # prog 'prog1': failed to attach: ERROR: strerror_r(-524)=22 (trampoline)
verif_stats # trace_vprintk__open_and_load unexpected error: -9 (?)
vmlinux # failed to auto-attach program 'handle__fentry': -524 (trampoline)
xdp_adjust_tail # case-128 err 0 errno 28 retval 1 size 128 expect-size 3520 (?)
xdp_bonding # failed to auto-attach program 'trace_on_entry': -524 (trampoline)
xdp_bpf2bpf # failed to auto-attach program 'trace_on_entry': -524 (trampoline)
map_kptr # failed to open_and_load program: -524 (trampoline)
bpf_cookie # failed to open_and_load program: -524 (trampoline)
xdp_do_redirect # prog_run_max_size unexpected error: -22 (errno 22)
send_signal # intermittently fails to receive signal
select_reuseport # intermittently fails on new s390x setup
xdp_synproxy # JIT does not support calling kernel function (kfunc)
unpriv_bpf_disabled # fentry

107
tools/testing/selftests/bpf/config
View File

@ -1,65 +1,64 @@
CONFIG_BLK_DEV_LOOP=y
CONFIG_BPF=y
CONFIG_BPF_SYSCALL=y
CONFIG_NET_CLS_BPF=m
CONFIG_BPF_EVENTS=y
CONFIG_TEST_BPF=m
CONFIG_BPF_JIT=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_BPF_LSM=y
CONFIG_BPF_STREAM_PARSER=y
CONFIG_BPF_SYSCALL=y
CONFIG_CGROUP_BPF=y
CONFIG_NETDEVSIM=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_SCHED=y
CONFIG_NET_SCH_INGRESS=y
CONFIG_NET_IPIP=y
CONFIG_IPV6=y
CONFIG_NET_IPGRE_DEMUX=y
CONFIG_NET_IPGRE=y
CONFIG_IPV6_GRE=y
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_HMAC=m
CONFIG_CRYPTO_SHA256=m
CONFIG_VXLAN=y
CONFIG_GENEVE=y
CONFIG_NET_CLS_FLOWER=m
CONFIG_LWTUNNEL=y
CONFIG_BPF_STREAM_PARSER=y
CONFIG_XDP_SOCKETS=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_IPV6_TUNNEL=y
CONFIG_IPV6_GRE=y
CONFIG_IPV6_SEG6_BPF=y
CONFIG_NET_FOU=m
CONFIG_NET_FOU_IP_TUNNELS=y
CONFIG_IPV6_FOU=m
CONFIG_IPV6_FOU_TUNNEL=m
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=m
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
CONFIG_IPV6_SIT=m
CONFIG_BPF_JIT=y
CONFIG_BPF_LSM=y
CONFIG_SECURITY=y
CONFIG_RC_CORE=y
CONFIG_LIRC=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_IMA=y
CONFIG_SECURITYFS=y
CONFIG_IMA_WRITE_POLICY=y
CONFIG_IMA_READ_POLICY=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_FUNCTION_TRACER=y
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_DYNAMIC_FTRACE=y
CONFIG_NETFILTER=y
CONFIG_NF_DEFRAG_IPV4=y
CONFIG_NF_DEFRAG_IPV6=y
CONFIG_NF_CONNTRACK=y
CONFIG_USERFAULTFD=y
CONFIG_FPROBE=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_FUNCTION_TRACER=y
CONFIG_GENEVE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_MPTCP=y
CONFIG_NETFILTER_SYNPROXY=y
CONFIG_NETFILTER_XT_TARGET_CT=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
CONFIG_IMA=y
CONFIG_IMA_READ_POLICY=y
CONFIG_IMA_WRITE_POLICY=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_SYNPROXY=y
CONFIG_IP_NF_RAW=y
CONFIG_IP_NF_TARGET_SYNPROXY=y
CONFIG_IPV6=y
CONFIG_IPV6_FOU=m
CONFIG_IPV6_FOU_TUNNEL=m
CONFIG_IPV6_GRE=y
CONFIG_IPV6_SEG6_BPF=y
CONFIG_IPV6_SIT=m
CONFIG_IPV6_TUNNEL=y
CONFIG_LIRC=y
CONFIG_LWTUNNEL=y
CONFIG_MPLS=y
CONFIG_MPLS_IPTUNNEL=m
CONFIG_MPLS_ROUTING=m
CONFIG_MPTCP=y
CONFIG_NET_CLS_ACT=y
CONFIG_NET_CLS_BPF=y
CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_FOU=m
CONFIG_NET_FOU_IP_TUNNELS=y
CONFIG_NET_IPGRE=y
CONFIG_NET_IPGRE_DEMUX=y
CONFIG_NET_IPIP=y
CONFIG_NET_MPLS_GSO=m
CONFIG_NET_SCH_INGRESS=y
CONFIG_NET_SCHED=y
CONFIG_NETDEVSIM=m
CONFIG_NETFILTER=y
CONFIG_NETFILTER_SYNPROXY=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
CONFIG_NETFILTER_XT_TARGET_CT=y
CONFIG_NF_CONNTRACK=y
CONFIG_NF_DEFRAG_IPV4=y
CONFIG_NF_DEFRAG_IPV6=y
CONFIG_RC_CORE=y
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_TEST_BPF=m
CONFIG_USERFAULTFD=y
CONFIG_VXLAN=y
CONFIG_XDP_SOCKETS=y

147
tools/testing/selftests/bpf/config.s390x Normal file
View File

@ -0,0 +1,147 @@
CONFIG_9P_FS=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
CONFIG_AUDIT=y
CONFIG_BLK_CGROUP=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BONDING=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_BPF_PRELOAD=y
CONFIG_BPF_PRELOAD_UMD=y
CONFIG_BPFILTER=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUPS=y
CONFIG_CHECKPOINT_RESTORE=y
CONFIG_CPUSETS=y
CONFIG_CRASH_DUMP=y
CONFIG_CRYPTO_USER_API_RNG=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_LOCKDEP=y
CONFIG_DEBUG_NOTIFIERS=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_DEBUG_SG=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEVTMPFS=y
CONFIG_EXPERT=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_FANOTIFY=y
CONFIG_FUNCTION_PROFILER=y
CONFIG_GDB_SCRIPTS=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_MARCH_Z10_FEATURES=y
CONFIG_HAVE_MARCH_Z196_FEATURES=y
CONFIG_HEADERS_INSTALL=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HUGETLBFS=y
CONFIG_HW_RANDOM=y
CONFIG_HZ_100=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_IKHEADERS=y
CONFIG_INET6_ESP=y
CONFIG_INET=y
CONFIG_INET_ESP=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IPV6_SEG6_LWTUNNEL=y
CONFIG_IPVLAN=y
CONFIG_JUMP_LABEL=y
CONFIG_KERNEL_UNCOMPRESSED=y
CONFIG_KPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_KRETPROBES=y
CONFIG_KSM=y
CONFIG_LATENCYTOP=y
CONFIG_LIVEPATCH=y
CONFIG_LOCK_STAT=y
CONFIG_MACVLAN=y
CONFIG_MACVTAP=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_MARCH_Z196=y
CONFIG_MARCH_Z196_TUNE=y
CONFIG_MEMCG=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_MODULE_SIG=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULES=y
CONFIG_NAMESPACES=y
CONFIG_NET=y
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_NET_ACT_BPF=y
CONFIG_NET_ACT_GACT=y
CONFIG_NET_KEY=y
CONFIG_NET_SCH_FQ=y
CONFIG_NET_VRF=y
CONFIG_NETDEVICES=y
CONFIG_NETFILTER_XT_MATCH_BPF=y
CONFIG_NETFILTER_XT_TARGET_MARK=y
CONFIG_NF_TABLES=y
CONFIG_NO_HZ_IDLE=y
CONFIG_NR_CPUS=256
CONFIG_NUMA=y
CONFIG_PACKET=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_PCI=y
CONFIG_POSIX_MQUEUE=y
CONFIG_PROC_KCORE=y
CONFIG_PROFILING=y
CONFIG_PROVE_LOCKING=y
CONFIG_PTDUMP_DEBUGFS=y
CONFIG_RC_DEVICES=y
CONFIG_RC_LOOPBACK=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_SAMPLE_SECCOMP=y
CONFIG_SAMPLES=y
CONFIG_SCHED_TRACER=y
CONFIG_SCSI=y
CONFIG_SCSI_VIRTIO=y
CONFIG_SECURITY_NETWORK=y
CONFIG_STACK_TRACER=y
CONFIG_STATIC_KEYS_SELFTEST=y
CONFIG_SYSVIPC=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_TASK_XACCT=y
CONFIG_TASKSTATS=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_DCTCP=y
CONFIG_TLS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TUN=y
CONFIG_UNIX=y
CONFIG_UPROBES=y
CONFIG_USELIB=y
CONFIG_USER_NS=y
CONFIG_VETH=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_BLK=y
CONFIG_VIRTIO_NET=y
CONFIG_VIRTIO_PCI=y
CONFIG_VLAN_8021Q=y
CONFIG_XFRM_USER=y

251
tools/testing/selftests/bpf/config.x86_64 Normal file
View File

@ -0,0 +1,251 @@
CONFIG_9P_FS=y
CONFIG_9P_FS_POSIX_ACL=y
CONFIG_9P_FS_SECURITY=y
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_AGP_SIS=y
CONFIG_AGP_VIA=y
CONFIG_AMIGA_PARTITION=y
CONFIG_AUDIT=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BINFMT_MISC=y
CONFIG_BLK_CGROUP=y
CONFIG_BLK_CGROUP_IOLATENCY=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_BONDING=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_BOOTTIME_TRACING=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_KPROBE_OVERRIDE=y
CONFIG_BPF_PRELOAD=y
CONFIG_BPF_PRELOAD_UMD=y
CONFIG_BPFILTER=y
CONFIG_BSD_DISKLABEL=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUPS=y
CONFIG_CMA=y
CONFIG_CMA_AREAS=7
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPUSETS=y
CONFIG_CRC_T10DIF=y
CONFIG_CRYPTO_BLAKE2B=y
CONFIG_CRYPTO_DEV_VIRTIO=m
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_XXHASH=y
CONFIG_DCB=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_DEBUG_CREDENTIALS=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DEFAULT_FQ_CODEL=y
CONFIG_DEFAULT_RENO=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_DMA_CMA=y
CONFIG_DNS_RESOLVER=y
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EXPERT=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_FAIL_FUNCTION=y
CONFIG_FAULT_INJECTION=y
CONFIG_FAULT_INJECTION_DEBUG_FS=y
CONFIG_FB=y
CONFIG_FB_MODE_HELPERS=y
CONFIG_FB_TILEBLITTING=y
CONFIG_FB_VESA=y
CONFIG_FONT_8x16=y
CONFIG_FONT_MINI_4x6=y
CONFIG_FONTS=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_GART_IOMMU=y
CONFIG_GENERIC_PHY=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_HID_A4TECH=y
CONFIG_HID_BELKIN=y
CONFIG_HID_CHERRY=y
CONFIG_HID_CYPRESS=y
CONFIG_HID_DRAGONRISE=y
CONFIG_HID_EZKEY=y
CONFIG_HID_GREENASIA=y
CONFIG_HID_GYRATION=y
CONFIG_HID_KENSINGTON=y
CONFIG_HID_KYE=y
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
CONFIG_HID_PANTHERLORD=y
CONFIG_HID_PETALYNX=y
CONFIG_HID_SMARTJOYPLUS=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_TOPSEED=y
CONFIG_HID_TWINHAN=y
CONFIG_HID_ZEROPLUS=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HPET=y
CONFIG_HUGETLBFS=y
CONFIG_HWPOISON_INJECT=y
CONFIG_HZ_1000=y
CONFIG_INET=y
CONFIG_INPUT_EVDEV=y
CONFIG_INTEL_POWERCLAMP=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IPV6_MIP6=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_SEG6_LWTUNNEL=y
CONFIG_IPV6_SUBTREES=y
CONFIG_IRQ_POLL=y
CONFIG_JUMP_LABEL=y
CONFIG_KARMA_PARTITION=y
CONFIG_KEXEC=y
CONFIG_KPROBES=y
CONFIG_KSM=y
CONFIG_LEGACY_VSYSCALL_NONE=y
CONFIG_LOG_BUF_SHIFT=21
CONFIG_LOG_CPU_MAX_BUF_SHIFT=0
CONFIG_LOGO=y
CONFIG_LSM="selinux,bpf,integrity"
CONFIG_MAC_PARTITION=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_MCORE2=y
CONFIG_MEMCG=y
CONFIG_MEMORY_FAILURE=y
CONFIG_MINIX_SUBPARTITION=y
CONFIG_MODULE_SIG=y
CONFIG_MODULE_SRCVERSION_ALL=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_NAMESPACES=y
CONFIG_NET=y
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_NET_ACT_BPF=y
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_EMATCH=y
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_NET_L3_MASTER_DEV=y
CONFIG_NET_SCH_DEFAULT=y
CONFIG_NET_SCH_FQ_CODEL=y
CONFIG_NET_TC_SKB_EXT=y
CONFIG_NET_VRF=y
CONFIG_NETDEVICES=y
CONFIG_NETFILTER_NETLINK_LOG=y
CONFIG_NETFILTER_NETLINK_QUEUE=y
CONFIG_NETFILTER_XT_MATCH_BPF=y
CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
CONFIG_NETLABEL=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NO_HZ=y
CONFIG_NR_CPUS=128
CONFIG_NUMA=y
CONFIG_NUMA_BALANCING=y
CONFIG_NVMEM=y
CONFIG_OSF_PARTITION=y
CONFIG_PACKET=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_PCI=y
CONFIG_PCI_IOV=y
CONFIG_PCI_MSI=y
CONFIG_PCIEPORTBUS=y
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_POSIX_MQUEUE=y
CONFIG_POWER_SUPPLY=y
CONFIG_PREEMPT=y
CONFIG_PRINTK_TIME=y
CONFIG_PROC_KCORE=y
CONFIG_PROFILING=y
CONFIG_PROVE_LOCKING=y
CONFIG_PTP_1588_CLOCK=y
CONFIG_RC_DEVICES=y
CONFIG_RC_LOOPBACK=y
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_SCHED_STACK_END_CHECK=y
CONFIG_SCHEDSTATS=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_SELINUX=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIO_LIBPS2=y
CONFIG_SGI_PARTITION=y
CONFIG_SMP=y
CONFIG_SOLARIS_X86_PARTITION=y
CONFIG_SUN_PARTITION=y
CONFIG_SYNC_FILE=y
CONFIG_SYSVIPC=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_TASK_XACCT=y
CONFIG_TASKSTATS=y
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_MD5SIG=y
CONFIG_TLS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
CONFIG_TUN=y
CONFIG_UNIX=y
CONFIG_UNIXWARE_DISKLABEL=y
CONFIG_USER_NS=y
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_VETH=y
CONFIG_VIRT_DRIVERS=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_BLK=y
CONFIG_VIRTIO_CONSOLE=y
CONFIG_VIRTIO_NET=y
CONFIG_VIRTIO_PCI=y
CONFIG_VLAN_8021Q=y
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_CPUID=y
CONFIG_X86_MSR=y
CONFIG_X86_POWERNOW_K8=y
CONFIG_XDP_SOCKETS_DIAG=y
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_USER=y
CONFIG_ZEROPLUS_FF=y

35
tools/testing/selftests/bpf/prog_tests/probe_user.c
View File

@ -4,25 +4,35 @@
/* TODO: corrupts other tests uses connect() */
void serial_test_probe_user(void)
{
const char *prog_name = "handle_sys_connect";
static const char *const prog_names[] = {
"handle_sys_connect",
#if defined(__s390x__)
"handle_sys_socketcall",
#endif
};
enum { prog_count = ARRAY_SIZE(prog_names) };
const char *obj_file = "./test_probe_user.o";
DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts, );
int err, results_map_fd, sock_fd, duration = 0;
struct sockaddr curr, orig, tmp;
struct sockaddr_in *in = (struct sockaddr_in *)&curr;
struct bpf_link *kprobe_link = NULL;
struct bpf_program *kprobe_prog;
struct bpf_link *kprobe_links[prog_count] = {};
struct bpf_program *kprobe_progs[prog_count];
struct bpf_object *obj;
static const int zero = 0;
size_t i;
obj = bpf_object__open_file(obj_file, &opts);
if (!ASSERT_OK_PTR(obj, "obj_open_file"))
return;
kprobe_prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK(!kprobe_prog, "find_probe",
"prog '%s' not found\n", prog_name))
goto cleanup;
for (i = 0; i < prog_count; i++) {
kprobe_progs[i] =
bpf_object__find_program_by_name(obj, prog_names[i]);
if (CHECK(!kprobe_progs[i], "find_probe",
"prog '%s' not found\n", prog_names[i]))
goto cleanup;
}
err = bpf_object__load(obj);
if (CHECK(err, "obj_load", "err %d\n", err))
@ -33,9 +43,11 @@ void serial_test_probe_user(void)
"err %d\n", results_map_fd))
goto cleanup;
kprobe_link = bpf_program__attach(kprobe_prog);
if (!ASSERT_OK_PTR(kprobe_link, "attach_kprobe"))
goto cleanup;
for (i = 0; i < prog_count; i++) {
kprobe_links[i] = bpf_program__attach(kprobe_progs[i]);
if (!ASSERT_OK_PTR(kprobe_links[i], "attach_kprobe"))
goto cleanup;
}
memset(&curr, 0, sizeof(curr));
in->sin_family = AF_INET;
@ -69,6 +81,7 @@ void serial_test_probe_user(void)
inet_ntoa(in->sin_addr), ntohs(in->sin_port)))
goto cleanup;
cleanup:
bpf_link__destroy(kprobe_link);
for (i = 0; i < prog_count; i++)
bpf_link__destroy(kprobe_links[i]);
bpf_object__close(obj);
}

2
tools/testing/selftests/bpf/prog_tests/send_signal.c
View File

@ -64,7 +64,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
ASSERT_EQ(read(pipe_p2c[0], buf, 1), 1, "pipe_read");
/* wait a little for signal handler */
for (int i = 0; i < 100000000 && !sigusr1_received; i++)
for (int i = 0; i < 1000000000 && !sigusr1_received; i++)
j /= i + j + 1;
buf[0] = sigusr1_received ? '2' : '0';

17
tools/testing/selftests/bpf/prog_tests/test_tunnel.c
View File

@ -82,6 +82,7 @@
#define MAC_TUNL_DEV0 "52:54:00:d9:01:00"
#define MAC_TUNL_DEV1 "52:54:00:d9:02:00"
#define MAC_VETH1 "52:54:00:d9:03:00"
#define VXLAN_TUNL_DEV0 "vxlan00"
#define VXLAN_TUNL_DEV1 "vxlan11"
@ -108,10 +109,9 @@
static int config_device(void)
{
SYS("ip netns add at_ns0");
SYS("ip link add veth0 type veth peer name veth1");
SYS("ip link add veth0 address " MAC_VETH1 " type veth peer name veth1");
SYS("ip link set veth0 netns at_ns0");
SYS("ip addr add " IP4_ADDR1_VETH1 "/24 dev veth1");
SYS("ip addr add " IP4_ADDR2_VETH1 "/24 dev veth1");
SYS("ip link set dev veth1 up mtu 1500");
SYS("ip netns exec at_ns0 ip addr add " IP4_ADDR_VETH0 "/24 dev veth0");
SYS("ip netns exec at_ns0 ip link set dev veth0 up mtu 1500");
@ -140,6 +140,8 @@ static int add_vxlan_tunnel(void)
VXLAN_TUNL_DEV0, IP4_ADDR_TUNL_DEV0);
SYS("ip netns exec at_ns0 ip neigh add %s lladdr %s dev %s",
IP4_ADDR_TUNL_DEV1, MAC_TUNL_DEV1, VXLAN_TUNL_DEV0);
SYS("ip netns exec at_ns0 ip neigh add %s lladdr %s dev veth0",
IP4_ADDR2_VETH1, MAC_VETH1);
/* root namespace */
SYS("ip link add dev %s type vxlan external gbp dstport 4789",
@ -277,6 +279,17 @@ static void test_vxlan_tunnel(void)
if (attach_tc_prog(&tc_hook, get_src_prog_fd, set_src_prog_fd))
goto done;
/* load and attach bpf prog to veth dev tc hook point */
ifindex = if_nametoindex("veth1");
if (!ASSERT_NEQ(ifindex, 0, "veth1 ifindex"))
goto done;
tc_hook.ifindex = ifindex;
set_dst_prog_fd = bpf_program__fd(skel->progs.veth_set_outer_dst);
if (!ASSERT_GE(set_dst_prog_fd, 0, "bpf_program__fd"))
goto done;
if (attach_tc_prog(&tc_hook, set_dst_prog_fd, -1))
goto done;
/* load and attach prog set_md to tunnel dev tc hook point at_ns0 */
nstoken = open_netns("at_ns0");
if (!ASSERT_OK_PTR(nstoken, "setns src"))

29
tools/testing/selftests/bpf/progs/test_probe_user.c
View File

@ -7,8 +7,7 @@
static struct sockaddr_in old;
SEC("ksyscall/connect")
int BPF_KSYSCALL(handle_sys_connect, int fd, struct sockaddr_in *uservaddr, int addrlen)
static int handle_sys_connect_common(struct sockaddr_in *uservaddr)
{
struct sockaddr_in new;
@ -19,4 +18,30 @@ int BPF_KSYSCALL(handle_sys_connect, int fd, struct sockaddr_in *uservaddr, int
return 0;
}
SEC("ksyscall/connect")
int BPF_KSYSCALL(handle_sys_connect, int fd, struct sockaddr_in *uservaddr,
int addrlen)
{
return handle_sys_connect_common(uservaddr);
}
#if defined(bpf_target_s390)
#ifndef SYS_CONNECT
#define SYS_CONNECT 3
#endif
SEC("ksyscall/socketcall")
int BPF_KSYSCALL(handle_sys_socketcall, int call, unsigned long *args)
{
if (call == SYS_CONNECT) {
struct sockaddr_in *uservaddr;
bpf_probe_read_user(&uservaddr, sizeof(uservaddr), &args[1]);
return handle_sys_connect_common(uservaddr);
}
return 0;
}
#endif
char _license[] SEC("license") = "GPL";

80
tools/testing/selftests/bpf/progs/test_tunnel_kern.c
View File

@ -14,15 +14,24 @@
#include <linux/if_packet.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/icmp.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/pkt_cls.h>
#include <linux/erspan.h>
#include <linux/udp.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_endian.h>
#define log_err(__ret) bpf_printk("ERROR line:%d ret:%d\n", __LINE__, __ret)
#define VXLAN_UDP_PORT 4789
/* Only IPv4 address assigned to veth1.
* 172.16.1.200
*/
#define ASSIGNED_ADDR_VETH1 0xac1001c8
struct geneve_opt {
__be16 opt_class;
__u8 type;
@ -33,6 +42,11 @@ struct geneve_opt {
__u8 opt_data[8]; /* hard-coded to 8 byte */
};
struct vxlanhdr {
__be32 vx_flags;
__be32 vx_vni;
} __attribute__((packed));
struct vxlan_metadata {
__u32 gbp;
};
@ -369,14 +383,8 @@ int vxlan_get_tunnel_src(struct __sk_buff *skb)
int ret;
struct bpf_tunnel_key key;
struct vxlan_metadata md;
__u32 orig_daddr;
__u32 index = 0;
__u32 *local_ip = NULL;
local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
if (!local_ip) {
log_err(ret);
return TC_ACT_SHOT;
}
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
if (ret < 0) {
@ -390,11 +398,10 @@ int vxlan_get_tunnel_src(struct __sk_buff *skb)
return TC_ACT_SHOT;
}
if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) {
if (key.local_ipv4 != ASSIGNED_ADDR_VETH1 || md.gbp != 0x800FF) {
bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x\n",
key.tunnel_id, key.local_ipv4,
key.remote_ipv4, md.gbp);
bpf_printk("local_ip 0x%x\n", *local_ip);
log_err(ret);
return TC_ACT_SHOT;
}
@ -402,6 +409,61 @@ int vxlan_get_tunnel_src(struct __sk_buff *skb)
return TC_ACT_OK;
}
SEC("tc")
int veth_set_outer_dst(struct __sk_buff *skb)
{
struct ethhdr *eth = (struct ethhdr *)(long)skb->data;
__u32 assigned_ip = bpf_htonl(ASSIGNED_ADDR_VETH1);
void *data_end = (void *)(long)skb->data_end;
struct udphdr *udph;
struct iphdr *iph;
__u32 index = 0;
int ret = 0;
int shrink;
__s64 csum;
if ((void *)eth + sizeof(*eth) > data_end) {
log_err(ret);
return TC_ACT_SHOT;
}
if (eth->h_proto != bpf_htons(ETH_P_IP))
return TC_ACT_OK;
iph = (struct iphdr *)(eth + 1);
if ((void *)iph + sizeof(*iph) > data_end) {
log_err(ret);
return TC_ACT_SHOT;
}
if (iph->protocol != IPPROTO_UDP)
return TC_ACT_OK;
udph = (struct udphdr *)(iph + 1);
if ((void *)udph + sizeof(*udph) > data_end) {
log_err(ret);
return TC_ACT_SHOT;
}
if (udph->dest != bpf_htons(VXLAN_UDP_PORT))
return TC_ACT_OK;
if (iph->daddr != assigned_ip) {
csum = bpf_csum_diff(&iph->daddr, sizeof(__u32), &assigned_ip,
sizeof(__u32), 0);
if (bpf_skb_store_bytes(skb, ETH_HLEN + offsetof(struct iphdr, daddr),
&assigned_ip, sizeof(__u32), 0) < 0) {
log_err(ret);
return TC_ACT_SHOT;
}
if (bpf_l3_csum_replace(skb, ETH_HLEN + offsetof(struct iphdr, check),
0, csum, 0) < 0) {
log_err(ret);
return TC_ACT_SHOT;
}
bpf_skb_change_type(skb, PACKET_HOST);
}
return TC_ACT_OK;
}
SEC("tc")
int ip6vxlan_set_tunnel_dst(struct __sk_buff *skb)
{

7
tools/testing/selftests/bpf/test_progs.c
View File

@ -1604,11 +1604,8 @@ int main(int argc, char **argv)
struct prog_test_def *test = &prog_test_defs[i];
test->test_num = i + 1;
if (should_run(&env.test_selector,
test->test_num, test->test_name))
test->should_run = true;
else
test->should_run = false;
test->should_run = should_run(&env.test_selector,
test->test_num, test->test_name);
if ((test->run_test == NULL && test->run_serial_test == NULL) ||
(test->run_test != NULL && test->run_serial_test != NULL)) {

53
tools/testing/selftests/bpf/vmtest.sh
View File

@ -30,8 +30,7 @@ DEFAULT_COMMAND="./test_progs"
MOUNT_DIR="mnt"
ROOTFS_IMAGE="root.img"
OUTPUT_DIR="$HOME/.bpf_selftests"
KCONFIG_URL="https://raw.githubusercontent.com/libbpf/libbpf/master/travis-ci/vmtest/configs/config-latest.${ARCH}"
KCONFIG_API_URL="https://api.github.com/repos/libbpf/libbpf/contents/travis-ci/vmtest/configs/config-latest.${ARCH}"
KCONFIG_REL_PATHS=("tools/testing/selftests/bpf/config" "tools/testing/selftests/bpf/config.${ARCH}")
INDEX_URL="https://raw.githubusercontent.com/libbpf/ci/master/INDEX"
NUM_COMPILE_JOBS="$(nproc)"
LOG_FILE_BASE="$(date +"bpf_selftests.%Y-%m-%d_%H-%M-%S")"
@ -269,26 +268,42 @@ is_rel_path()
[[ ${path:0:1} != "/" ]]
}
do_update_kconfig()
{
local kernel_checkout="$1"
local kconfig_file="$2"
rm -f "$kconfig_file" 2> /dev/null
for config in "${KCONFIG_REL_PATHS[@]}"; do
local kconfig_src="${kernel_checkout}/${config}"
cat "$kconfig_src" >> "$kconfig_file"
done
}
update_kconfig()
{
local kconfig_file="$1"
local update_command="curl -sLf ${KCONFIG_URL} -o ${kconfig_file}"
# Github does not return the "last-modified" header when retrieving the
# raw contents of the file. Use the API call to get the last-modified
# time of the kernel config and only update the config if it has been
# updated after the previously cached config was created. This avoids
# unnecessarily compiling the kernel and selftests.
if [[ -f "${kconfig_file}" ]]; then
local last_modified_date="$(curl -sL -D - "${KCONFIG_API_URL}" -o /dev/null | \
grep "last-modified" | awk -F ': ' '{print $2}')"
local remote_modified_timestamp="$(date -d "${last_modified_date}" +"%s")"
local local_creation_timestamp="$(stat -c %Y "${kconfig_file}")"
local kernel_checkout="$1"
local kconfig_file="$2"
if [[ "${remote_modified_timestamp}" -gt "${local_creation_timestamp}" ]]; then
${update_command}
fi
if [[ -f "${kconfig_file}" ]]; then
local local_modified="$(stat -c %Y "${kconfig_file}")"
for config in "${KCONFIG_REL_PATHS[@]}"; do
local kconfig_src="${kernel_checkout}/${config}"
local src_modified="$(stat -c %Y "${kconfig_src}")"
# Only update the config if it has been updated after the
# previously cached config was created. This avoids
# unnecessarily compiling the kernel and selftests.
if [[ "${src_modified}" -gt "${local_modified}" ]]; then
do_update_kconfig "$kernel_checkout" "$kconfig_file"
# Once we have found one outdated configuration
# there is no need to check other ones.
break
fi
done
else
${update_command}
do_update_kconfig "$kernel_checkout" "$kconfig_file"
fi
}
@ -372,7 +387,7 @@ main()
mkdir -p "${OUTPUT_DIR}"
mkdir -p "${mount_dir}"
update_kconfig "${kconfig_file}"
update_kconfig "${kernel_checkout}" "${kconfig_file}"
recompile_kernel "${kernel_checkout}" "${make_command}"