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smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TY513gcW; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TY513gcW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93FEFC4CED3; Tue, 1 Oct 2024 14:30:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727793046; bh=CH+wScTa8GUFCNj8ufwkCTAXrmWWHcXN4sx7aLuS5n4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=TY513gcWN/Fd2JcO9du7Qucy38llPv6gzjKk8xnOEVDPaBhgr9a7ojy9+BUjWefv7 X81Eoo7mxfbV2dww7vVuQZcWHHoXGWPM4iCcRVeosvWij/bGs/ug1uWQMPKMhjXBmo pEo9y03dOHgoGq/2vQ5AmsuCHUXWpL5ENworT++e9IvCBHm90IgKAOTJAtZVdsxtYx L0ohS/+EEJKmlusHGbhiWCdydSefR9goXuLtNYVDpAKKwmoSp/INljZQilEpS1WWzf L/LkbShMI0+U6tX5i5wmQw9AEr8O3lNJTLGpPbEHQWAW4+F8QGm1GwDZECS1DBcfU4 nibyGFBJKp+Kw== From: Benjamin Tissoires Date: Tue, 01 Oct 2024 16:30:10 +0200 Subject: [PATCH HID v3 6/9] selftests/hid: cleanup C tests by adding a common struct uhid_device Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241001-hid-bpf-hid-generic-v3-6-2ef1019468df@kernel.org> References: <20241001-hid-bpf-hid-generic-v3-0-2ef1019468df@kernel.org> In-Reply-To: <20241001-hid-bpf-hid-generic-v3-0-2ef1019468df@kernel.org> To: Jiri Kosina , Peter Hutterer , Vicki Pfau , Shuah Khan Cc: linux-input@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, Benjamin Tissoires X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1727793031; l=15763; i=bentiss@kernel.org; s=20230215; h=from:subject:message-id; bh=CH+wScTa8GUFCNj8ufwkCTAXrmWWHcXN4sx7aLuS5n4=; b=3OSWOpQEfHBzN6E1bn7hgzjT2ASsWY8CLWeu4Hv6Xyc7L2U/jO5exwgVBqzRAo1VoDehEWDLu h1L4CJRSyGkCg84NAPjeaKVti+1PyDAUnnJzXXbITqfrDZVeUnvpBmA X-Developer-Key: i=bentiss@kernel.org; a=ed25519; pk=7D1DyAVh6ajCkuUTudt/chMuXWIJHlv2qCsRkIizvFw= Allows to have an abstract class uhid_device which handles all of the uhid part without having to mess up with individual fds. struct attach_prog_args is now never used in hid_bpf.c, so drop it as well Signed-off-by: Benjamin Tissoires --- no changes in v3 no changes in v2 --- tools/testing/selftests/hid/hid_bpf.c | 77 +++++++++++-----------------= ---- tools/testing/selftests/hid/hid_common.h | 74 ++++++++++++++++++++--------= -- tools/testing/selftests/hid/hidraw.c | 36 +++++---------- 3 files changed, 87 insertions(+), 100 deletions(-) diff --git a/tools/testing/selftests/hid/hid_bpf.c b/tools/testing/selftest= s/hid/hid_bpf.c index 86f4d66379f7..31ff92e0debd 100644 --- a/tools/testing/selftests/hid/hid_bpf.c +++ b/tools/testing/selftests/hid/hid_bpf.c @@ -4,13 +4,6 @@ #include "hid_common.h" #include =20 -struct attach_prog_args { - int prog_fd; - unsigned int hid; - int retval; - int insert_head; -}; - struct hid_hw_request_syscall_args { __u8 data[10]; unsigned int hid; @@ -21,11 +14,8 @@ struct hid_hw_request_syscall_args { }; =20 FIXTURE(hid_bpf) { - int dev_id; - int uhid_fd; + struct uhid_device hid; int hidraw_fd; - int hid_id; - pthread_t tid; struct hid *skel; struct bpf_link *hid_links[3]; /* max number of programs loaded in a sing= le test */ }; @@ -54,10 +44,10 @@ static void detach_bpf(FIXTURE_DATA(hid_bpf) * self) FIXTURE_TEARDOWN(hid_bpf) { void *uhid_err; =20 - uhid_destroy(_metadata, self->uhid_fd); + uhid_destroy(_metadata, &self->hid); =20 detach_bpf(self); - pthread_join(self->tid, &uhid_err); + pthread_join(self->hid.tid, &uhid_err); } #define TEARDOWN_LOG(fmt, ...) do { \ TH_LOG(fmt, ##__VA_ARGS__); \ @@ -66,23 +56,10 @@ FIXTURE_TEARDOWN(hid_bpf) { =20 FIXTURE_SETUP(hid_bpf) { - time_t t; int err; =20 - /* initialize random number generator */ - srand((unsigned int)time(&t)); - - self->dev_id =3D rand() % 1024; - - self->uhid_fd =3D setup_uhid(_metadata, self->dev_id); - - /* locate the uev, self, variant);ent file of the created device */ - self->hid_id =3D get_hid_id(self->dev_id); - ASSERT_GT(self->hid_id, 0) - TEARDOWN_LOG("Could not locate uhid device id: %d", self->hid_id); - - err =3D uhid_start_listener(_metadata, &self->tid, self->uhid_fd); - ASSERT_EQ(0, err) TEARDOWN_LOG("could not start udev listener: %d", err); + err =3D setup_uhid(_metadata, &self->hid); + ASSERT_OK(err); } =20 struct test_program { @@ -129,7 +106,7 @@ static void load_programs(const struct test_program pro= grams[], ops_hid_id =3D bpf_map__initial_value(map, NULL); ASSERT_OK_PTR(ops_hid_id) TH_LOG("unable to retrieve struct_ops data"); =20 - *ops_hid_id =3D self->hid_id; + *ops_hid_id =3D self->hid.hid_id; } =20 /* we disable the auto-attach feature of all maps because we @@ -157,7 +134,7 @@ static void load_programs(const struct test_program pro= grams[], =20 hid__attach(self->skel); =20 - self->hidraw_fd =3D open_hidraw(self->dev_id); + self->hidraw_fd =3D open_hidraw(&self->hid); ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw"); } =20 @@ -192,7 +169,7 @@ TEST_F(hid_bpf, raw_event) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* check that hid_first_event() was executed */ ASSERT_EQ(self->skel->data->callback_check, 42) TH_LOG("callback_check1"); @@ -208,7 +185,7 @@ TEST_F(hid_bpf, raw_event) memset(buf, 0, sizeof(buf)); buf[0] =3D 1; buf[1] =3D 47; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* check that hid_first_event() was executed */ ASSERT_EQ(self->skel->data->callback_check, 47) TH_LOG("callback_check1"); @@ -239,7 +216,7 @@ TEST_F(hid_bpf, subprog_raw_event) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -252,7 +229,7 @@ TEST_F(hid_bpf, subprog_raw_event) memset(buf, 0, sizeof(buf)); buf[0] =3D 1; buf[1] =3D 47; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -303,7 +280,7 @@ TEST_F(hid_bpf, test_attach_detach) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -326,14 +303,14 @@ TEST_F(hid_bpf, test_attach_detach) /* detach the program */ detach_bpf(self); =20 - self->hidraw_fd =3D open_hidraw(self->dev_id); + self->hidraw_fd =3D open_hidraw(&self->hid); ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw"); =20 /* inject another event */ memset(buf, 0, sizeof(buf)); buf[0] =3D 1; buf[1] =3D 47; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -352,7 +329,7 @@ TEST_F(hid_bpf, test_attach_detach) memset(buf, 0, sizeof(buf)); buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -382,7 +359,7 @@ TEST_F(hid_bpf, test_hid_change_report) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -412,7 +389,7 @@ TEST_F(hid_bpf, test_hid_user_input_report_call) =20 LOAD_BPF; =20 - args.hid =3D self->hid_id; + args.hid =3D self->hid.hid_id; args.data[0] =3D 1; /* report ID */ args.data[1] =3D 2; /* report ID */ args.data[2] =3D 42; /* report ID */ @@ -458,7 +435,7 @@ TEST_F(hid_bpf, test_hid_user_output_report_call) =20 LOAD_BPF; =20 - args.hid =3D self->hid_id; + args.hid =3D self->hid.hid_id; args.data[0] =3D 1; /* report ID */ args.data[1] =3D 2; /* report ID */ args.data[2] =3D 42; /* report ID */ @@ -506,7 +483,7 @@ TEST_F(hid_bpf, test_hid_user_raw_request_call) =20 LOAD_BPF; =20 - args.hid =3D self->hid_id; + args.hid =3D self->hid.hid_id; args.data[0] =3D 1; /* report ID */ =20 prog_fd =3D bpf_program__fd(self->skel->progs.hid_user_raw_request); @@ -539,7 +516,7 @@ TEST_F(hid_bpf, test_hid_filter_raw_request_call) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -565,7 +542,7 @@ TEST_F(hid_bpf, test_hid_filter_raw_request_call) /* detach the program */ detach_bpf(self); =20 - self->hidraw_fd =3D open_hidraw(self->dev_id); + self->hidraw_fd =3D open_hidraw(&self->hid); ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw"); =20 err =3D ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf); @@ -641,7 +618,7 @@ TEST_F(hid_bpf, test_hid_filter_output_report_call) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -667,7 +644,7 @@ TEST_F(hid_bpf, test_hid_filter_output_report_call) /* detach the program */ detach_bpf(self); =20 - self->hidraw_fd =3D open_hidraw(self->dev_id); + self->hidraw_fd =3D open_hidraw(&self->hid); ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw"); =20 err =3D write(self->hidraw_fd, buf, 3); @@ -742,7 +719,7 @@ TEST_F(hid_bpf, test_multiply_events_wq) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -780,7 +757,7 @@ TEST_F(hid_bpf, test_multiply_events) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -816,7 +793,7 @@ TEST_F(hid_bpf, test_hid_infinite_loop_input_report_cal= l) buf[1] =3D 2; buf[2] =3D 42; =20 - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -867,7 +844,7 @@ TEST_F(hid_bpf, test_hid_attach_flags) =20 /* inject one event */ buf[0] =3D 1; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); diff --git a/tools/testing/selftests/hid/hid_common.h b/tools/testing/selft= ests/hid/hid_common.h index f151f151a1ed..a7d836a35bb1 100644 --- a/tools/testing/selftests/hid/hid_common.h +++ b/tools/testing/selftests/hid/hid_common.h @@ -19,6 +19,13 @@ __typeof__(b) _b =3D (b); \ _a < _b ? _a : _b; }) =20 +struct uhid_device { + int dev_id; /* uniq (random) number to identify the device */ + int uhid_fd; + int hid_id; /* HID device id in the system */ + pthread_t tid; /* thread for reading uhid events */ +}; + static unsigned char rdesc[] =3D { 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */ 0x09, 0x21, /* Usage (Vendor Usage 0x21) */ @@ -146,14 +153,14 @@ static int uhid_create(struct __test_metadata *_metad= ata, int fd, int rand_nb) return uhid_write(_metadata, fd, &ev); } =20 -static void uhid_destroy(struct __test_metadata *_metadata, int fd) +static void uhid_destroy(struct __test_metadata *_metadata, struct uhid_de= vice *hid) { struct uhid_event ev; =20 memset(&ev, 0, sizeof(ev)); ev.type =3D UHID_DESTROY; =20 - uhid_write(_metadata, fd, &ev); + uhid_write(_metadata, hid->uhid_fd, &ev); } =20 static int uhid_event(struct __test_metadata *_metadata, int fd) @@ -281,7 +288,8 @@ static int uhid_start_listener(struct __test_metadata *= _metadata, pthread_t *tid return 0; } =20 -static int uhid_send_event(struct __test_metadata *_metadata, int fd, __u8= *buf, size_t size) +static int uhid_send_event(struct __test_metadata *_metadata, struct uhid_= device *hid, + __u8 *buf, size_t size) { struct uhid_event ev; =20 @@ -294,25 +302,7 @@ static int uhid_send_event(struct __test_metadata *_me= tadata, int fd, __u8 *buf, =20 memcpy(ev.u.input2.data, buf, size); =20 - return uhid_write(_metadata, fd, &ev); -} - -static int setup_uhid(struct __test_metadata *_metadata, int rand_nb) -{ - int fd; - const char *path =3D "/dev/uhid"; - int ret; - - fd =3D open(path, O_RDWR | O_CLOEXEC); - ASSERT_GE(fd, 0) TH_LOG("open uhid-cdev failed; %d", fd); - - ret =3D uhid_create(_metadata, fd, rand_nb); - ASSERT_EQ(0, ret) { - TH_LOG("create uhid device failed: %d", ret); - close(fd); - } - - return fd; + return uhid_write(_metadata, hid->uhid_fd, &ev); } =20 static bool match_sysfs_device(int dev_id, const char *workdir, struct dir= ent *dir) @@ -421,12 +411,12 @@ static int get_hidraw(int dev_id) return found; } =20 -static int open_hidraw(int dev_id) +static int open_hidraw(struct uhid_device *hid) { int hidraw_number; char hidraw_path[64] =3D { 0 }; =20 - hidraw_number =3D get_hidraw(dev_id); + hidraw_number =3D get_hidraw(hid->dev_id); if (hidraw_number < 0) return hidraw_number; =20 @@ -434,3 +424,39 @@ static int open_hidraw(int dev_id) sprintf(hidraw_path, "/dev/hidraw%d", hidraw_number); return open(hidraw_path, O_RDWR | O_NONBLOCK); } + +static int setup_uhid(struct __test_metadata *_metadata, struct uhid_devic= e *hid) +{ + const char *path =3D "/dev/uhid"; + time_t t; + int ret; + + /* initialize random number generator */ + srand((unsigned int)time(&t)); + + hid->dev_id =3D rand() % 1024; + + hid->uhid_fd =3D open(path, O_RDWR | O_CLOEXEC); + ASSERT_GE(hid->uhid_fd, 0) TH_LOG("open uhid-cdev failed; %d", hid->uhid_= fd); + + ret =3D uhid_create(_metadata, hid->uhid_fd, hid->dev_id); + ASSERT_EQ(0, ret) { + TH_LOG("create uhid device failed: %d", ret); + close(hid->uhid_fd); + return ret; + } + + /* locate the uevent file of the created device */ + hid->hid_id =3D get_hid_id(hid->dev_id); + ASSERT_GT(hid->hid_id, 0) + TH_LOG("Could not locate uhid device id: %d", hid->hid_id); + + ret =3D uhid_start_listener(_metadata, &hid->tid, hid->uhid_fd); + ASSERT_EQ(0, ret) { + TH_LOG("could not start udev listener: %d", ret); + close(hid->uhid_fd); + return ret; + } + + return 0; +} diff --git a/tools/testing/selftests/hid/hidraw.c b/tools/testing/selftests= /hid/hidraw.c index f8b4f7ff292c..5934818b2036 100644 --- a/tools/testing/selftests/hid/hidraw.c +++ b/tools/testing/selftests/hid/hidraw.c @@ -9,11 +9,8 @@ #endif /* HIDIOCREVOKE */ =20 FIXTURE(hidraw) { - int dev_id; - int uhid_fd; + struct uhid_device hid; int hidraw_fd; - int hid_id; - pthread_t tid; }; static void close_hidraw(FIXTURE_DATA(hidraw) * self) { @@ -25,10 +22,10 @@ static void close_hidraw(FIXTURE_DATA(hidraw) * self) FIXTURE_TEARDOWN(hidraw) { void *uhid_err; =20 - uhid_destroy(_metadata, self->uhid_fd); + uhid_destroy(_metadata, &self->hid); =20 close_hidraw(self); - pthread_join(self->tid, &uhid_err); + pthread_join(self->hid.tid, &uhid_err); } #define TEARDOWN_LOG(fmt, ...) do { \ TH_LOG(fmt, ##__VA_ARGS__); \ @@ -37,25 +34,12 @@ FIXTURE_TEARDOWN(hidraw) { =20 FIXTURE_SETUP(hidraw) { - time_t t; int err; =20 - /* initialize random number generator */ - srand((unsigned int)time(&t)); + err =3D setup_uhid(_metadata, &self->hid); + ASSERT_OK(err); =20 - self->dev_id =3D rand() % 1024; - - self->uhid_fd =3D setup_uhid(_metadata, self->dev_id); - - /* locate the uev, self, variant);ent file of the created device */ - self->hid_id =3D get_hid_id(self->dev_id); - ASSERT_GT(self->hid_id, 0) - TEARDOWN_LOG("Could not locate uhid device id: %d", self->hid_id); - - err =3D uhid_start_listener(_metadata, &self->tid, self->uhid_fd); - ASSERT_EQ(0, err) TEARDOWN_LOG("could not start udev listener: %d", err); - - self->hidraw_fd =3D open_hidraw(self->dev_id); + self->hidraw_fd =3D open_hidraw(&self->hid); ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw"); } =20 @@ -79,7 +63,7 @@ TEST_F(hidraw, raw_event) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -101,7 +85,7 @@ TEST_F(hidraw, raw_event_revoked) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -117,7 +101,7 @@ TEST_F(hidraw, raw_event_revoked) /* inject one other event */ buf[0] =3D 1; buf[1] =3D 43; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 /* read the data from hidraw */ memset(buf, 0, sizeof(buf)); @@ -161,7 +145,7 @@ TEST_F(hidraw, poll_revoked) /* inject one event */ buf[0] =3D 1; buf[1] =3D 42; - uhid_send_event(_metadata, self->uhid_fd, buf, 6); + uhid_send_event(_metadata, &self->hid, buf, 6); =20 while (true) { ready =3D poll(pfds, 1, 5000); --=20 2.46.0