| Commit message (Collapse) | Author | Age | Files | Lines |
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Add a test that checks that pedit adjusts source and destination
addresses of IPv4 and IPv6 packets.
Output example:
$ ./pedit_ip.sh
TEST: ping [ OK ]
TEST: ping6 [ OK ]
TEST: dev swp2 ingress pedit ip src set 198.51.100.1 [ OK ]
TEST: dev swp3 egress pedit ip src set 198.51.100.1 [ OK ]
TEST: dev swp2 ingress pedit ip dst set 198.51.100.1 [ OK ]
TEST: dev swp3 egress pedit ip dst set 198.51.100.1 [ OK ]
TEST: dev swp2 ingress pedit ip6 src set 2001:db8:2::1 [ OK ]
TEST: dev swp3 egress pedit ip6 src set 2001:db8:2::1 [ OK ]
TEST: dev swp2 ingress pedit ip6 dst set 2001:db8:2::1 [ OK ]
TEST: dev swp3 egress pedit ip6 dst set 2001:db8:2::1 [ OK ]
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch added a command line option '-i' for mptcp_join.sh to use
'ip mptcp' commands instead of using 'pm_nl_ctl' commands to deal with
PM netlink.
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch added the setting flags test cases, using both addr-based and
id-based lookups for the setting address.
The output looks like this:
set flags (backup) [ OK ]
(nobackup) [ OK ]
(fullmesh) [ OK ]
(nofullmesh) [ OK ]
(backup,fullmesh) [ OK ]
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch added the id argument for setting the address flags in
pm_nl_ctl.
Usage:
pm_nl_ctl set id 1 flags backup
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch implemented a new function named pm_nl_set_endpoint(), wrapped
the PM netlink commands 'ip mptcp endpoint change flags' and 'pm_nl_ctl
set flags' in it, and used a new argument 'ip_mptcp' to choose which one
to use to set the flags of the PM endpoint.
'ip mptcp' used the ID number argument to find out the address to change
flags, while 'pm_nl_ctl' used the address and port number arguments. So
we need to parse the address ID from the PM dump output as well as the
address and port number.
Used this wrapper in do_transfer() instead of using the pm_nl_ctl command
directly.
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch implemented a new function named pm_nl_show_endpoints(), wrapped
the PM netlink commands 'ip mptcp endpoint show' and 'pm_nl_ctl dump' in
it, used a new argument 'ip_mptcp' to choose which one to use to show all
the PM endpoints.
Used this wrapper in do_transfer() instead of using the pm_nl_ctl commands
directly.
The original 'pos+=5' in the remoing tests only works for the output of
'pm_nl_ctl show':
id 1 flags subflow 10.0.1.1
It doesn't work for the output of 'ip mptcp endpoint show':
10.0.1.1 id 1 subflow
So implemented a more flexible approach to get the address ID from the PM
dump output to fit for both commands.
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch added four basic 'ip mptcp' wrappers:
pm_nl_set_limits()
pm_nl_add_endpoint()
pm_nl_del_endpoint()
pm_nl_flush_endpoint().
Wrapped the PM netlink commands 'ip mptcp' and 'pm_nl_ctl' in them, and
used a new argument 'ip_mptcp' to choose which one to use for setting the
PM limits, adding or deleting the PM endpoint.
Used the wrappers in all the selftests in mptcp_join.sh instead of using
the pm_nl_ctl commands directly.
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch added the backup testcase using an address with a port number.
The original backup tests only work for the output of 'pm_nl_ctl dump'
without the port number. It chooses the last item in the dump to parse
the address in it, and in this case, the address is showed at the end
of the item.
But it doesn't work for the dump with the port number, in this case, the
port number is showed at the end of the item, not the address.
So implemented a more flexible approach to get the address and the port
number from the dump to fit for the port number case.
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch added the port argument for setting the address flags in
pm_nl_ctl.
Usage:
pm_nl_ctl set 10.0.2.1 flags backup port 10100
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Using tos 0x1 with 'ip route get <IPv4 address> ...' doesn't test much
of the tos option handling: 0x1 just sets an ECN bit, which is cleared
by inet_rtm_getroute() before doing the fib lookup. Let's use 0x10
instead, which is actually taken into account in the route lookup (and
is less surprising for the reader).
For consistency, use 0x10 for the IPv6 route lookup too (IPv6 currently
doesn't clear ECN bits, but might do so in the future).
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Link: https://lore.kernel.org/r/d61119e68d01ba7ef3ba50c1345a5123a11de123.1643815297.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Although both iproute2 and the kernel accept 1 and 2 as tos values for
new routes, those are invalid. These values only set ECN bits, which
are ignored during IPv4 fib lookups. Therefore, no packet can actually
match such routes. This selftest therefore only succeeds because it
doesn't verify that the new routes do actually work in practice (it
just checks if the routes are offloaded or not).
It makes more sense to use tos values that don't conflict with ECN.
This way, the selftest won't be affected if we later decide to warn or
even reject invalid tos configurations for new routes.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/5e43b343720360a1c0e4f5947d9e917b26f30fbf.1643826556.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Allow the ageing timeout that is set on bridges to be customized from
forwarding.config. This allows the tests to be run on hardware which
does not support a 10s timeout (e.g. mv88e6xxx).
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch added the fullmesh setting and clearing selftests in
mptcp_join.sh.
Now we can set both backup and fullmesh flags, so avoid using the
words 'backup' and 'bkup'.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch added the fullmesh flag setting and clearing support in
pm_nl_ctl:
# pm_nl_ctl set ip flags fullmesh
# pm_nl_ctl set ip flags nofullmesh
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Run sysctl in quiet mode. Echoing the modified sysctl doesn't bring any
useful information.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All callers of fib_rule6_test_match_n_redirect() and
fib_rule4_test_match_n_redirect() pass a third argument containing a
description of the test being run. Instead of ignoring this argument,
let's use it for logging instead of printing a truncated version of the
command.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The fib_rule6_del_by_pref() and fib_rule4_del_by_pref() functions use
an uninitialised $TABLE variable. They should use $RTABLE instead.
This doesn't alter the result of the test, as it just makes the grep
command less specific (but since the script always uses the same table
number, that doesn't really matter).
Let's fix it anyway and, while there, specify the filtering parameters
directly in 'ip -X rule show' to avoid the extra grep command entirely.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Let's restrict the scope of these variables to avoid possible
interferences.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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timestamping checks socket options during initialisation. For the field
bind_phc of the socket option SO_TIMESTAMPING it expects the value -1 if
PHC is not bound. Actually the value of bind_phc is 0 if PHC is not
bound. This results in the following output:
SIOCSHWTSTAMP: tx_type 0 requested, got 0; rx_filter 0 requested, got 0
SO_TIMESTAMP 0
SO_TIMESTAMPNS 0
SO_TIMESTAMPING flags 0, bind phc 0
not expected, flags 0, bind phc -1
This is fixed by setting default value and expected value of bind_phc to
0.
Fixes: 2214d7032479 ("selftests/net: timestamping: support binding PHC")
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Daniel Borkmann says:
====================
pull-request: bpf-next 2022-01-24
We've added 80 non-merge commits during the last 14 day(s) which contain
a total of 128 files changed, 4990 insertions(+), 895 deletions(-).
The main changes are:
1) Add XDP multi-buffer support and implement it for the mvneta driver,
from Lorenzo Bianconi, Eelco Chaudron and Toke Høiland-Jørgensen.
2) Add unstable conntrack lookup helpers for BPF by using the BPF kfunc
infra, from Kumar Kartikeya Dwivedi.
3) Extend BPF cgroup programs to export custom ret value to userspace via
two helpers bpf_get_retval() and bpf_set_retval(), from YiFei Zhu.
4) Add support for AF_UNIX iterator batching, from Kuniyuki Iwashima.
5) Complete missing UAPI BPF helper description and change bpf_doc.py script
to enforce consistent & complete helper documentation, from Usama Arif.
6) Deprecate libbpf's legacy BPF map definitions and streamline XDP APIs to
follow tc-based APIs, from Andrii Nakryiko.
7) Support BPF_PROG_QUERY for BPF programs attached to sockmap, from Di Zhu.
8) Deprecate libbpf's bpf_map__def() API and replace users with proper getters
and setters, from Christy Lee.
9) Extend libbpf's btf__add_btf() with an additional hashmap for strings to
reduce overhead, from Kui-Feng Lee.
10) Fix bpftool and libbpf error handling related to libbpf's hashmap__new()
utility function, from Mauricio Vásquez.
11) Add support to BTF program names in bpftool's program dump, from Raman Shukhau.
12) Fix resolve_btfids build to pick up host flags, from Connor O'Brien.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (80 commits)
selftests, bpf: Do not yet switch to new libbpf XDP APIs
selftests, xsk: Fix rx_full stats test
bpf: Fix flexible_array.cocci warnings
xdp: disable XDP_REDIRECT for xdp frags
bpf: selftests: add CPUMAP/DEVMAP selftests for xdp frags
bpf: selftests: introduce bpf_xdp_{load,store}_bytes selftest
net: xdp: introduce bpf_xdp_pointer utility routine
bpf: generalise tail call map compatibility check
libbpf: Add SEC name for xdp frags programs
bpf: selftests: update xdp_adjust_tail selftest to include xdp frags
bpf: test_run: add xdp_shared_info pointer in bpf_test_finish signature
bpf: introduce frags support to bpf_prog_test_run_xdp()
bpf: move user_size out of bpf_test_init
bpf: add frags support to xdp copy helpers
bpf: add frags support to the bpf_xdp_adjust_tail() API
bpf: introduce bpf_xdp_get_buff_len helper
net: mvneta: enable jumbo frames if the loaded XDP program support frags
bpf: introduce BPF_F_XDP_HAS_FRAGS flag in prog_flags loading the ebpf program
net: mvneta: add frags support to XDP_TX
xdp: add frags support to xdp_return_{buff/frame}
...
====================
Link: https://lore.kernel.org/r/20220124221235.18993-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revert commit 544356524dd6 ("selftests/bpf: switch to new libbpf XDP APIs")
for now given this will heavily conflict with 4b27480dcaa7 ("bpf/selftests:
convert xdp_link test to ASSERT_* macros") upon merge. Andrii agreed to redo
the conversion cleanly after trees merged.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
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Fix the rx_full stats test so that it correctly reports pass even when
the fill ring is not full of buffers.
Fixes: 872a1184dbf2 ("selftests: xsk: Put the same buffer only once in the fill ring")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/bpf/20220121123508.12759-1-magnus.karlsson@gmail.com
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Verify compatibility checks attaching a XDP frags program to a
CPUMAP/DEVMAP
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/d94b4d35adc1e42c9ca5004e6b2cdfd75992304d.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Introduce kernel selftest for new bpf_xdp_{load,store}_bytes helpers.
and bpf_xdp_pointer/bpf_xdp_copy_buf utility routines.
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/2c99ae663a5dcfbd9240b1d0489ad55dea4f4601.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This change adds test cases for the xdp frags scenarios when shrinking
and growing.
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://lore.kernel.org/r/d2e6a0ebc52db6f89e62b9befe045032e5e0a5fe.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This patch adds support for frags for the following helpers:
- bpf_xdp_output()
- bpf_perf_event_output()
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/340b4a99cdc24337b40eaf8bb597f9f9e7b0373e.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add test for querying progs attached to sockmap. we use an existing
libbpf query interface to query prog cnt before and after progs
attaching to sockmap and check whether the queried prog id is right.
Signed-off-by: Di Zhu <zhudi2@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/r/20220119014005.1209-2-zhudi2@huawei.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Switch to using new bpf_xdp_*() APIs across all selftests. Take
advantage of a more straightforward and user-friendly semantics of
old_prog_fd (0 means "don't care") in few places.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220120061422.2710637-4-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Enact deprecation of legacy BPF map definition in SEC("maps") ([0]). For
the definitions themselves introduce LIBBPF_STRICT_MAP_DEFINITIONS flag
for libbpf strict mode. If it is set, error out on any struct
bpf_map_def-based map definition. If not set, libbpf will print out
a warning for each legacy BPF map to raise awareness that it goes away.
For any use of BPF_ANNOTATE_KV_PAIR() macro providing a legacy way to
associate BTF key/value type information with legacy BPF map definition,
warn through libbpf's pr_warn() error message (but don't fail BPF object
open).
BPF-side struct bpf_map_def is marked as deprecated. User-space struct
bpf_map_def has to be used internally in libbpf, so it is left
untouched. It should be enough for bpf_map__def() to be marked
deprecated to raise awareness that it goes away.
bpftool is an interesting case that utilizes libbpf to open BPF ELF
object to generate skeleton. As such, even though bpftool itself uses
full on strict libbpf mode (LIBBPF_STRICT_ALL), it has to relax it a bit
for BPF map definition handling to minimize unnecessary disruptions. So
opt-out of LIBBPF_STRICT_MAP_DEFINITIONS for bpftool. User's code that
will later use generated skeleton will make its own decision whether to
enforce LIBBPF_STRICT_MAP_DEFINITIONS or not.
There are few tests in selftests/bpf that are consciously using legacy
BPF map definitions to test libbpf functionality. For those, temporary
opt out of LIBBPF_STRICT_MAP_DEFINITIONS mode for the duration of those
tests.
[0] Closes: https://github.com/libbpf/libbpf/issues/272
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220120060529.1890907-4-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Converted few remaining legacy BPF map definition to BTF-defined ones.
For the remaining two bpf_map_def-based legacy definitions that we want
to keep for testing purposes until libbpf 1.0 release, guard them in
pragma to suppres deprecation warnings which will be added in libbpf in
the next commit.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220120060529.1890907-3-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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It's very easy to miss compilation warnings without -Werror, which is
not set for selftests. libbpf and bpftool are already strict about this,
so make selftests/bpf also treat compilation warnings as errors to catch
such regressions early.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20220120060529.1890907-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Some users have complained that selftests fail to build when
CONFIG_NF_CONNTRACK=m. It would be useful to allow building as long as
it is set to module or built-in, even though in case of building as
module, user would need to load it before running the selftest. Note
that this also allows building selftest when CONFIG_NF_CONNTRACK is
disabled.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220120164932.2798544-1-memxor@gmail.com
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The bind_perm BPF selftest failed when port 111/tcp was already in use
during the test. To fix this, the test now runs in its own network name
space.
To use unshare, it is necessary to reorder the includes. The style of
the includes is adapted to be consistent with the other prog_tests.
v2: Replace deprecated CHECK macro with ASSERT_OK
Fixes: 8259fdeb30326 ("selftests/bpf: Verify that rebinding to port < 1024 from BPF works")
Signed-off-by: Felix Maurer <fmaurer@redhat.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/551ee65533bb987a43f93d88eaf2368b416ccd32.1642518457.git.fmaurer@redhat.com
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Rely on ASSERT* macros and get rid of deprecated CHECK ones in
xdp_bpf2bpf bpf selftest.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/df7e5098465016e27d91f2c69a376a35d63a7621.1642679130.git.lorenzo@kernel.org
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Rely on ASSERT* macros and get rid of deprecated CHECK ones in
xdp_adjust_tail bpf selftest.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/c0ab002ffa647a20ec9e584214bf0d4373142b54.1642679130.git.lorenzo@kernel.org
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The tests would break without this patch, because at one point it calls
getsockopt(fd, SOL_TCP, TCP_ZEROCOPY_RECEIVE, &buf, &optlen)
This getsockopt receives the kernel-set -EINVAL. Prior to this patch
series, the eBPF getsockopt hook's -EPERM would override kernel's
-EINVAL, however, after this patch series, return 0's automatic
-EPERM will not; the eBPF prog has to explicitly bpf_set_retval(-EPERM)
if that is wanted.
I also removed the explicit mentions of EPERM in the comments in the
prog.
Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/4f20b77cb46812dbc2bdcd7e3fa87c7573bde55e.1639619851.git.zhuyifei@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The tests checks how different ways of interacting with the helpers
(getting retval, setting EUNATCH, EISCONN, and legacy reject
returning 0 without setting retval), produce different results in
both the setsockopt syscall and the retval returned by the helper.
A few more tests verify the interaction between the retval of the
helper and the retval in getsockopt context.
Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/43ec60d679ae3f4f6fd2460559c28b63cb93cd12.1639619851.git.zhuyifei@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The commit b8a58aa6fccc ("af_unix: Cut unix_validate_addr() out of
unix_mkname().") moved the bound test part into unix_validate_addr().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Link: https://lore.kernel.org/r/20220113002849.4384-6-kuniyu@amazon.co.jp
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This patch adds a test for the batching and bpf_(get|set)sockopt in bpf
unix iter.
It does the following.
1. Creates an abstract UNIX domain socket
2. Call bpf_setsockopt()
3. Call bpf_getsockopt() and save the value
4. Call setsockopt()
5. Call getsockopt() and save the value
6. Compare the saved values
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Link: https://lore.kernel.org/r/20220113002849.4384-5-kuniyu@amazon.co.jp
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This adds a complete test case to ensure we never take references to
modules not in MODULE_STATE_LIVE, which can lead to UAF, and it also
ensures we never access btf->kfunc_set_tab in an inconsistent state.
The test uses userfaultfd to artificially widen the race.
When run on an unpatched kernel, it leads to the following splat:
[root@(none) bpf]# ./test_progs -t bpf_mod_race/ksym
[ 55.498171] BUG: unable to handle page fault for address: fffffbfff802548b
[ 55.499206] #PF: supervisor read access in kernel mode
[ 55.499855] #PF: error_code(0x0000) - not-present page
[ 55.500555] PGD a4fa9067 P4D a4fa9067 PUD a4fa5067 PMD 1b44067 PTE 0
[ 55.501499] Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 55.502195] CPU: 0 PID: 83 Comm: kworker/0:2 Tainted: G OE 5.16.0-rc4+ #151
[ 55.503388] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ArchLinux 1.15.0-1 04/01/2014
[ 55.504777] Workqueue: events bpf_prog_free_deferred
[ 55.505563] RIP: 0010:kasan_check_range+0x184/0x1d0
[ 55.509140] RSP: 0018:ffff88800560fcf0 EFLAGS: 00010282
[ 55.509977] RAX: fffffbfff802548b RBX: fffffbfff802548c RCX: ffffffff9337b6ba
[ 55.511096] RDX: fffffbfff802548c RSI: 0000000000000004 RDI: ffffffffc012a458
[ 55.512143] RBP: fffffbfff802548b R08: 0000000000000001 R09: ffffffffc012a45b
[ 55.513228] R10: fffffbfff802548b R11: 0000000000000001 R12: ffff888001b5f598
[ 55.514332] R13: ffff888004f49ac8 R14: 0000000000000000 R15: ffff888092449400
[ 55.515418] FS: 0000000000000000(0000) GS:ffff888092400000(0000) knlGS:0000000000000000
[ 55.516705] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 55.517560] CR2: fffffbfff802548b CR3: 0000000007c10006 CR4: 0000000000770ef0
[ 55.518672] PKRU: 55555554
[ 55.519022] Call Trace:
[ 55.519483] <TASK>
[ 55.519884] module_put.part.0+0x2a/0x180
[ 55.520642] bpf_prog_free_deferred+0x129/0x2e0
[ 55.521478] process_one_work+0x4fa/0x9e0
[ 55.522122] ? pwq_dec_nr_in_flight+0x100/0x100
[ 55.522878] ? rwlock_bug.part.0+0x60/0x60
[ 55.523551] worker_thread+0x2eb/0x700
[ 55.524176] ? __kthread_parkme+0xd8/0xf0
[ 55.524853] ? process_one_work+0x9e0/0x9e0
[ 55.525544] kthread+0x23a/0x270
[ 55.526088] ? set_kthread_struct+0x80/0x80
[ 55.526798] ret_from_fork+0x1f/0x30
[ 55.527413] </TASK>
[ 55.527813] Modules linked in: bpf_testmod(OE) [last unloaded: bpf_testmod]
[ 55.530846] CR2: fffffbfff802548b
[ 55.531341] ---[ end trace 1af41803c054ad6d ]---
[ 55.532136] RIP: 0010:kasan_check_range+0x184/0x1d0
[ 55.535887] RSP: 0018:ffff88800560fcf0 EFLAGS: 00010282
[ 55.536711] RAX: fffffbfff802548b RBX: fffffbfff802548c RCX: ffffffff9337b6ba
[ 55.537821] RDX: fffffbfff802548c RSI: 0000000000000004 RDI: ffffffffc012a458
[ 55.538899] RBP: fffffbfff802548b R08: 0000000000000001 R09: ffffffffc012a45b
[ 55.539928] R10: fffffbfff802548b R11: 0000000000000001 R12: ffff888001b5f598
[ 55.541021] R13: ffff888004f49ac8 R14: 0000000000000000 R15: ffff888092449400
[ 55.542108] FS: 0000000000000000(0000) GS:ffff888092400000(0000) knlGS:0000000000000000
[ 55.543260]CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 55.544136] CR2: fffffbfff802548b CR3: 0000000007c10006 CR4: 0000000000770ef0
[ 55.545317] PKRU: 55555554
[ 55.545671] note: kworker/0:2[83] exited with preempt_count 1
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220114163953.1455836-11-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Use the prog_test kfuncs to test the referenced PTR_TO_BTF_ID kfunc
support, and PTR_TO_CTX, PTR_TO_MEM argument passing support. Also
testing the various failure cases for invalid kfunc prototypes.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220114163953.1455836-10-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This allows us to add tests (esp. negative tests) where we only want to
ensure the program doesn't pass through the verifier, and also verify
the error. The next commit will add the tests making use of this.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220114163953.1455836-9-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This tests that we return errors as documented, and also that the kfunc
calls work from both XDP and TC hooks.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220114163953.1455836-8-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Completely remove the old code for check_kfunc_call to help it work
with modules, and also the callback itself.
The previous commit adds infrastructure to register all sets and put
them in vmlinux or module BTF, and concatenates all related sets
organized by the hook and the type. Once populated, these sets remain
immutable for the lifetime of the struct btf.
Also, since we don't need the 'owner' module anywhere when doing
check_kfunc_call, drop the 'btf_modp' module parameter from
find_kfunc_desc_btf.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220114163953.1455836-4-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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'lport' and 'rport' in bpf_prog1() of sockmap_verdict_prog.c is not
used, just remove them.
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20220113031658.633290-1-imagedong@tencent.com
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libbpf bpf_map__def() API is being deprecated, replace selftests/bpf's
usage with the appropriate getters and setters.
Signed-off-by: Christy Lee <christylee@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220108004218.355761-5-christylee@fb.com
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bpf_prog_attach_opts() is being deprecated and renamed to
bpf_prog_attach_xattr(). Change all selftests/bpf's uage to the new name.
Signed-off-by: Christy Lee <christylee@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220107184604.3668544-3-christylee@fb.com
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Pull kvm updates from Paolo Bonzini:
"ARM:
- Proper emulation of the OSLock feature of the debug architecture
- Scalibility improvements for the MMU lock when dirty logging is on
- New VMID allocator, which will eventually help with SVA in VMs
- Better support for PMUs in heterogenous systems
- PSCI 1.1 support, enabling support for SYSTEM_RESET2
- Implement CONFIG_DEBUG_LIST at EL2
- Make CONFIG_ARM64_ERRATUM_2077057 default y
- Reduce the overhead of VM exit when no interrupt is pending
- Remove traces of 32bit ARM host support from the documentation
- Updated vgic selftests
- Various cleanups, doc updates and spelling fixes
RISC-V:
- Prevent KVM_COMPAT from being selected
- Optimize __kvm_riscv_switch_to() implementation
- RISC-V SBI v0.3 support
s390:
- memop selftest
- fix SCK locking
- adapter interruptions virtualization for secure guests
- add Claudio Imbrenda as maintainer
- first step to do proper storage key checking
x86:
- Continue switching kvm_x86_ops to static_call(); introduce
static_call_cond() and __static_call_ret0 when applicable.
- Cleanup unused arguments in several functions
- Synthesize AMD 0x80000021 leaf
- Fixes and optimization for Hyper-V sparse-bank hypercalls
- Implement Hyper-V's enlightened MSR bitmap for nested SVM
- Remove MMU auditing
- Eager splitting of page tables (new aka "TDP" MMU only) when dirty
page tracking is enabled
- Cleanup the implementation of the guest PGD cache
- Preparation for the implementation of Intel IPI virtualization
- Fix some segment descriptor checks in the emulator
- Allow AMD AVIC support on systems with physical APIC ID above 255
- Better API to disable virtualization quirks
- Fixes and optimizations for the zapping of page tables:
- Zap roots in two passes, avoiding RCU read-side critical
sections that last too long for very large guests backed by 4
KiB SPTEs.
- Zap invalid and defunct roots asynchronously via
concurrency-managed work queue.
- Allowing yielding when zapping TDP MMU roots in response to the
root's last reference being put.
- Batch more TLB flushes with an RCU trick. Whoever frees the
paging structure now holds RCU as a proxy for all vCPUs running
in the guest, i.e. to prolongs the grace period on their behalf.
It then kicks the the vCPUs out of guest mode before doing
rcu_read_unlock().
Generic:
- Introduce __vcalloc and use it for very large allocations that need
memcg accounting"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (246 commits)
KVM: use kvcalloc for array allocations
KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2
kvm: x86: Require const tsc for RT
KVM: x86: synthesize CPUID leaf 0x80000021h if useful
KVM: x86: add support for CPUID leaf 0x80000021
KVM: x86: do not use KVM_X86_OP_OPTIONAL_RET0 for get_mt_mask
Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()"
kvm: x86/mmu: Flush TLB before zap_gfn_range releases RCU
KVM: arm64: fix typos in comments
KVM: arm64: Generalise VM features into a set of flags
KVM: s390: selftests: Add error memop tests
KVM: s390: selftests: Add more copy memop tests
KVM: s390: selftests: Add named stages for memop test
KVM: s390: selftests: Add macro as abstraction for MEM_OP
KVM: s390: selftests: Split memop tests
KVM: s390x: fix SCK locking
RISC-V: KVM: Implement SBI HSM suspend call
RISC-V: KVM: Add common kvm_riscv_vcpu_wfi() function
RISC-V: Add SBI HSM suspend related defines
RISC-V: KVM: Implement SBI v0.3 SRST extension
...
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