From patchwork Tue Sep 10 14:43:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Tissoires X-Patchwork-Id: 13798657 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7C8E01A08DB; Tue, 10 Sep 2024 14:44:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725979445; cv=none; b=rxOOtu2HDDlchasWsS+Y4isvXluIWfS7ZqUcmA6Y1AV+DEXexXlmdH5wM32HGtzixWNkY18iNuJH/eGjst+LeBz67nXWwvSINKQjgVRUIrVC0jC/DvBUYMZXWRy/It9FwqBxZ01Y3nXwaBab67nyw6S0Z3tH4r8HsJ5RxInzLmM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725979445; c=relaxed/simple; bh=JfbqgBGrbPRf4Q+i81ZCJ1xRNQLnuvbrzRkeCT0GBRk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=YBLhe7KW1HxMjzZAbacaC+lnGw1apmikCnA+MJDVy6EOjFt3vnrbPq34L7Af7DaV9HfQcvIXfbsDoTXGZU9m+DucFWH6SYi/kNn735zGE89XAmlteXdzl9t0h439vQJw9YNUUoYowiMq7HUkb/78VOzUSQzvFVKbHofIhS0aJ6A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PaTE2ETl; 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="PaTE2ETl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A5FA8C4CEC4; Tue, 10 Sep 2024 14:44:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725979445; bh=JfbqgBGrbPRf4Q+i81ZCJ1xRNQLnuvbrzRkeCT0GBRk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=PaTE2ETlZNbgSY5WDwpH4EqdZrHAUaF95gfVOO/LIZNoojsXeQftZgywGzJeoroxT JPg2FUrmnqdKwsy4q6XZB2CsPNz/Tvme5V+TFUFtWKKYrJ4rAwEA9yFTJJ/n7pVf0L H7nBk0C9bWK8ImLKXFdtb1P8N+ywQFms7JToCURgjUmvVZHMduHpcj7bnhtR2cqLgP o4hNGk4URMagdO4ZzWJQNlaWbFaOsv66cH7b02IKHsUyneWbG4KsiskHhY2guv9A+B JL59djHRER5KfDbNPdUN29aqKuTWJiIxDgGg6CwmJYocEgI4MByR8L2JzuL5WiHerK HpxnRGBW7RVIw== From: Benjamin Tissoires Date: Tue, 10 Sep 2024 23:43:43 +0900 Subject: [PATCH HID v2 07/11] selftests/hid: allow to parametrize bus/vid/pid/rdesc on the test device Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240910-hid-bpf-hid-generic-v2-7-083dfc189e97@kernel.org> References: <20240910-hid-bpf-hid-generic-v2-0-083dfc189e97@kernel.org> In-Reply-To: <20240910-hid-bpf-hid-generic-v2-0-083dfc189e97@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=1725979428; l=6751; i=bentiss@kernel.org; s=20230215; h=from:subject:message-id; bh=JfbqgBGrbPRf4Q+i81ZCJ1xRNQLnuvbrzRkeCT0GBRk=; b=xVAcS4cnlpjQsJDWLeRz+OzmlDzB3mJIKDEfA28Jxs9i4Blua3zu46Ez68CuposqGojXj8lFr i0AaiosyEqlA/eLDTdsQaxcIRmCkxzuZMPlHWfar/mjara7QNlEQQRI X-Developer-Key: i=bentiss@kernel.org; a=ed25519; pk=7D1DyAVh6ajCkuUTudt/chMuXWIJHlv2qCsRkIizvFw= This will be useful to introduce variants in tests to test the interactions between HID-BPF and some kernel modules. Signed-off-by: Benjamin Tissoires --- no changes in v2 --- tools/testing/selftests/hid/hid_bpf.c | 2 +- tools/testing/selftests/hid/hid_common.h | 46 ++++++++++++++++++++------------ tools/testing/selftests/hid/hidraw.c | 2 +- 3 files changed, 31 insertions(+), 19 deletions(-) diff --git a/tools/testing/selftests/hid/hid_bpf.c b/tools/testing/selftests/hid/hid_bpf.c index 17ccbf5ff4b5..7eb15da62bdc 100644 --- a/tools/testing/selftests/hid/hid_bpf.c +++ b/tools/testing/selftests/hid/hid_bpf.c @@ -58,7 +58,7 @@ FIXTURE_SETUP(hid_bpf) { int err; - err = setup_uhid(_metadata, &self->hid); + err = setup_uhid(_metadata, &self->hid, BUS_USB, 0x0001, 0x0a36, rdesc, sizeof(rdesc)); ASSERT_OK(err); } diff --git a/tools/testing/selftests/hid/hid_common.h b/tools/testing/selftests/hid/hid_common.h index a7d836a35bb1..f77f69c6657d 100644 --- a/tools/testing/selftests/hid/hid_common.h +++ b/tools/testing/selftests/hid/hid_common.h @@ -23,6 +23,9 @@ 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 */ + __u16 bus; + __u32 vid; + __u32 pid; pthread_t tid; /* thread for reading uhid events */ }; @@ -129,7 +132,9 @@ static int uhid_write(struct __test_metadata *_metadata, int fd, const struct uh } } -static int uhid_create(struct __test_metadata *_metadata, int fd, int rand_nb) +static int uhid_create(struct __test_metadata *_metadata, int fd, int rand_nb, + __u16 bus, __u32 vid, __u32 pid, __u8 *rdesc, + size_t rdesc_size) { struct uhid_event ev; char buf[25]; @@ -140,10 +145,10 @@ static int uhid_create(struct __test_metadata *_metadata, int fd, int rand_nb) ev.type = UHID_CREATE; strcpy((char *)ev.u.create.name, buf); ev.u.create.rd_data = rdesc; - ev.u.create.rd_size = sizeof(rdesc); - ev.u.create.bus = BUS_USB; - ev.u.create.vendor = 0x0001; - ev.u.create.product = 0x0a37; + ev.u.create.rd_size = rdesc_size; + ev.u.create.bus = bus; + ev.u.create.vendor = vid; + ev.u.create.product = pid; ev.u.create.version = 0; ev.u.create.country = 0; @@ -305,15 +310,17 @@ static int uhid_send_event(struct __test_metadata *_metadata, struct uhid_device return uhid_write(_metadata, hid->uhid_fd, &ev); } -static bool match_sysfs_device(int dev_id, const char *workdir, struct dirent *dir) +static bool match_sysfs_device(struct uhid_device *hid, const char *workdir, struct dirent *dir) { - const char *target = "0003:0001:0A37.*"; + char target[20] = ""; char phys[512]; char uevent[1024]; char temp[512]; int fd, nread; bool found = false; + snprintf(target, sizeof(target), "%04X:%04X:%04X.*", hid->bus, hid->vid, hid->pid); + if (fnmatch(target, dir->d_name, 0)) return false; @@ -324,7 +331,7 @@ static bool match_sysfs_device(int dev_id, const char *workdir, struct dirent *d if (fd < 0) return false; - sprintf(phys, "PHYS=%d", dev_id); + sprintf(phys, "PHYS=%d", hid->dev_id); nread = read(fd, temp, ARRAY_SIZE(temp)); if (nread > 0 && (strstr(temp, phys)) != NULL) @@ -335,7 +342,7 @@ static bool match_sysfs_device(int dev_id, const char *workdir, struct dirent *d return found; } -static int get_hid_id(int dev_id) +static int get_hid_id(struct uhid_device *hid) { const char *workdir = "/sys/devices/virtual/misc/uhid"; const char *str_id; @@ -350,10 +357,10 @@ static int get_hid_id(int dev_id) d = opendir(workdir); if (d) { while ((dir = readdir(d)) != NULL) { - if (!match_sysfs_device(dev_id, workdir, dir)) + if (!match_sysfs_device(hid, workdir, dir)) continue; - str_id = dir->d_name + sizeof("0003:0001:0A37."); + str_id = dir->d_name + sizeof("0000:0000:0000."); found = (int)strtol(str_id, NULL, 16); break; @@ -367,7 +374,7 @@ static int get_hid_id(int dev_id) return found; } -static int get_hidraw(int dev_id) +static int get_hidraw(struct uhid_device *hid) { const char *workdir = "/sys/devices/virtual/misc/uhid"; char sysfs[1024]; @@ -384,7 +391,7 @@ static int get_hidraw(int dev_id) continue; while ((dir = readdir(d)) != NULL) { - if (!match_sysfs_device(dev_id, workdir, dir)) + if (!match_sysfs_device(hid, workdir, dir)) continue; sprintf(sysfs, "%s/%s/hidraw", workdir, dir->d_name); @@ -416,7 +423,7 @@ static int open_hidraw(struct uhid_device *hid) int hidraw_number; char hidraw_path[64] = { 0 }; - hidraw_number = get_hidraw(hid->dev_id); + hidraw_number = get_hidraw(hid); if (hidraw_number < 0) return hidraw_number; @@ -425,7 +432,8 @@ static int open_hidraw(struct uhid_device *hid) return open(hidraw_path, O_RDWR | O_NONBLOCK); } -static int setup_uhid(struct __test_metadata *_metadata, struct uhid_device *hid) +static int setup_uhid(struct __test_metadata *_metadata, struct uhid_device *hid, + __u16 bus, __u32 vid, __u32 pid, const __u8 *rdesc, size_t rdesc_size) { const char *path = "/dev/uhid"; time_t t; @@ -435,11 +443,15 @@ static int setup_uhid(struct __test_metadata *_metadata, struct uhid_device *hid srand((unsigned int)time(&t)); hid->dev_id = rand() % 1024; + hid->bus = bus; + hid->vid = vid; + hid->pid = pid; hid->uhid_fd = open(path, O_RDWR | O_CLOEXEC); ASSERT_GE(hid->uhid_fd, 0) TH_LOG("open uhid-cdev failed; %d", hid->uhid_fd); - ret = uhid_create(_metadata, hid->uhid_fd, hid->dev_id); + ret = uhid_create(_metadata, hid->uhid_fd, hid->dev_id, bus, vid, pid, + (__u8 *)rdesc, rdesc_size); ASSERT_EQ(0, ret) { TH_LOG("create uhid device failed: %d", ret); close(hid->uhid_fd); @@ -447,7 +459,7 @@ static int setup_uhid(struct __test_metadata *_metadata, struct uhid_device *hid } /* locate the uevent file of the created device */ - hid->hid_id = get_hid_id(hid->dev_id); + hid->hid_id = get_hid_id(hid); ASSERT_GT(hid->hid_id, 0) TH_LOG("Could not locate uhid device id: %d", hid->hid_id); diff --git a/tools/testing/selftests/hid/hidraw.c b/tools/testing/selftests/hid/hidraw.c index 5934818b2036..821db37ba4bb 100644 --- a/tools/testing/selftests/hid/hidraw.c +++ b/tools/testing/selftests/hid/hidraw.c @@ -36,7 +36,7 @@ FIXTURE_SETUP(hidraw) { int err; - err = setup_uhid(_metadata, &self->hid); + err = setup_uhid(_metadata, &self->hid, BUS_USB, 0x0001, 0x0a37, rdesc, sizeof(rdesc)); ASSERT_OK(err); self->hidraw_fd = open_hidraw(&self->hid);