linux/tools/net/ynl/tests, branch master

tools: ynl: add sample for wireguard

2026-04-14T18:48:04Z

Add a sample application for WireGuard, using the generated C library. The main benefit of this is to exercise the generated library, which might be useful for future self-tests. Example: $ make -C tools/net/ynl/lib $ make -C tools/net/ynl/generated $ make -C tools/net/ynl/tests wireguard $ ./tools/net/ynl/tests/wireguard usage: ./tools/net/ynl/tests/wireguard $ sudo ./tools/net/ynl/tests/wireguard wg-test Interface 3: wg-test Peer 6adfb183a4a2c94a2f92dab5ade762a4788[...]: Data: rx: 42 / tx: 42 bytes Allowed IPs: 0.0.0.0/0 ::/0 Signed-off-by: Asbjørn Sloth Tønnesen Signed-off-by: Jason A. Donenfeld Link: https://patch.msgid.link/20260414153944.2742252-3-Jason@zx2c4.com Signed-off-by: Jakub Kicinski

tools: ynl: ethtool: add --dbg-small-recv option

2026-04-12T18:23:49Z

Add a --dbg-small-recv debug option to control the recv() buffer size used by YNL, matching the same option already present in cli.py. This is useful if user need to get large netlink message. Signed-off-by: Hangbin Liu Link: https://patch.msgid.link/20260408-b4-ynl_ethtool-v2-3-7623a5e8f70b@gmail.com Signed-off-by: Jakub Kicinski

tools: ynl: ethtool: use doit instead of dumpit for per-device GET

2026-04-12T18:23:49Z

Rename the local helper doit() to do_set() and dumpit() to do_get() to better reflect their purpose. Convert do_get() to use ynl.do() with an explicit device header instead of ynl.dump() followed by client-side filtering. This is more efficient as the kernel only processes and returns data for the requested device, rather than dumping all devices across the netns. Signed-off-by: Hangbin Liu Link: https://patch.msgid.link/20260408-b4-ynl_ethtool-v2-2-7623a5e8f70b@gmail.com Signed-off-by: Jakub Kicinski

tools: ynl: move ethtool.py to selftest

2026-04-12T18:23:49Z

We have converted all the samples to selftests. This script is the last piece of random "PoC" code we still have lying around. Let's move it to tests. Signed-off-by: Hangbin Liu Link: https://patch.msgid.link/20260408-b4-ynl_ethtool-v2-1-7623a5e8f70b@gmail.com Signed-off-by: Jakub Kicinski

tools: ynl: tests: fix leading space on Makefile target

2026-04-10T03:41:40Z

The ../generated/protos.a rule had a spurious leading space before the target name. In make, target rules must start at column 0; only recipe lines are indented with a tab. The extra space caused make to misparse the rule. Remove the leading space to match the style of the adjacent ../lib/ynl.a rule. Fixes: e0aa0c61758f ("tools: ynl: move samples to tests") Signed-off-by: Hangbin Liu Link: https://patch.msgid.link/20260408-ynl_makefile-v1-1-f9624acc2ad9@gmail.com Signed-off-by: Jakub Kicinski

tools: ynl: convert rt-route sample to selftest

2026-03-10T00:02:27Z

Convert rt-route.c to use kselftest_harness.h with FIXTURE/TEST_F. This is the last test to convert so clean up the Makefile. Validate that the connected routes for 192.168.1.0/24 and 2001:db8::/64 appear in the dump. Output: TAP version 13 1..1 # Starting 1 tests from 1 test cases. # RUN rt_route.dump ... # oif: nsim0 dst: 192.168.1.0/24 # oif: lo dst: ::1/128 # oif: nsim0 dst: 2001:db8::1/128 # oif: nsim0 dst: 2001:db8::/64 # oif: nsim0 dst: fe80::/64 # oif: nsim0 dst: ff00::/8 # OK rt_route.dump ok 1 rt_route.dump # PASSED: 1 / 1 tests passed. # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Donald Hunter Tested-by: Donald Hunter Link: https://patch.msgid.link/20260307033630.1396085-11-kuba@kernel.org Signed-off-by: Jakub Kicinski

tools: ynl: convert rt-addr sample to selftest

2026-03-10T00:02:27Z

Convert rt-addr.c to use kselftest_harness.h with FIXTURE/TEST_F. Validate that the addresses configured by the wrapper (192.168.1.1 and 2001:db8::1) appear in the dump. Output: TAP version 13 1..1 # Starting 1 tests from 1 test cases. # RUN rt_addr.dump ... # lo: 127.0.0.1 # nsim0: 192.168.1.1 # lo: ::1 # nsim0: 2001:db8::1 # nsim0: fe80::7c66:c9ff:fe5f:bf01 # OK rt_addr.dump ok 1 rt_addr.dump # PASSED: 1 / 1 tests passed. # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Donald Hunter Tested-by: Donald Hunter Link: https://patch.msgid.link/20260307033630.1396085-10-kuba@kernel.org Signed-off-by: Jakub Kicinski

tools: ynl: convert ethtool sample to selftest

2026-03-10T00:02:26Z

Convert ethtool.c to use kselftest_harness.h with FIXTURE/TEST_F. Move ethtool from BINS to TEST_GEN_FILES and add ethtool.sh wrapper which sets up a netdevsim device before running the test binary. Output: TAP version 13 1..2 # Starting 2 tests from 1 test cases. # RUN ethtool.channels ... # nsim0: combined 1 # OK ethtool.channels ok 1 ethtool.channels # RUN ethtool.rings ... # nsim0: rx 512 tx 512 # OK ethtool.rings ok 2 ethtool.rings # PASSED: 2 / 2 tests passed. # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Donald Hunter Tested-by: Donald Hunter Link: https://patch.msgid.link/20260307033630.1396085-9-kuba@kernel.org Signed-off-by: Jakub Kicinski

tools: ynl: convert devlink sample to selftest

2026-03-10T00:02:26Z

Convert devlink.c to use kselftest_harness.h with FIXTURE/TEST_F. Move devlink from BINS to TEST_GEN_FILES in the Makefile since it's invoked via the devlink.sh wrapper which sets up netdevsim. Output: TAP version 13 1..2 # Starting 2 tests from 1 test cases. # RUN devlink.dump ... # netdevsim/netdevsim1337 # OK devlink.dump ok 1 devlink.dump # RUN devlink.info ... # netdevsim/netdevsim1337: # driver: netdevsim # running fw: # fw.mgmt: 10.20.30 # OK devlink.info ok 2 devlink.info # PASSED: 2 / 2 tests passed. # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Donald Hunter Tested-by: Donald Hunter Link: https://patch.msgid.link/20260307033630.1396085-8-kuba@kernel.org Signed-off-by: Jakub Kicinski

tools: ynl: add netdevsim wrapper library for YNL tests

2026-03-10T00:02:26Z

Some tests need netdevsim setup which is painful to do from C. Add ynl_nsim_lib.sh, a shared library providing nsim_setup and nsim_cleanup functions for tests that need a netdevsim device. Reviewed-by: Donald Hunter Tested-by: Donald Hunter Link: https://patch.msgid.link/20260307033630.1396085-7-kuba@kernel.org Signed-off-by: Jakub Kicinski