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Diffstat (limited to 'tools/testing/selftests/hid/hid_bpf.c')
-rw-r--r--tools/testing/selftests/hid/hid_bpf.c151
1 files changed, 103 insertions, 48 deletions
diff --git a/tools/testing/selftests/hid/hid_bpf.c b/tools/testing/selftests/hid/hid_bpf.c
index 86f4d66379f7..ca58bfa3ca65 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 <bpf/bpf.h>
-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 {
};
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 single test */
};
@@ -54,35 +44,52 @@ static void detach_bpf(FIXTURE_DATA(hid_bpf) * self)
FIXTURE_TEARDOWN(hid_bpf) {
void *uhid_err;
- uhid_destroy(_metadata, self->uhid_fd);
+ uhid_destroy(_metadata, &self->hid);
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__); \
hid_bpf_teardown(_metadata, self, variant); \
} while (0)
+struct specific_device {
+ const char test_name[64];
+ __u16 bus;
+ __u32 vid;
+ __u32 pid;
+};
+
FIXTURE_SETUP(hid_bpf)
{
- time_t t;
+ const struct specific_device *match = NULL;
int err;
- /* initialize random number generator */
- srand((unsigned int)time(&t));
-
- self->dev_id = rand() % 1024;
-
- self->uhid_fd = setup_uhid(_metadata, self->dev_id);
+ const struct specific_device devices[] = {
+ {
+ .test_name = "test_hid_driver_probe",
+ .bus = BUS_BLUETOOTH,
+ .vid = 0x05ac, /* USB_VENDOR_ID_APPLE */
+ .pid = 0x022c, /* USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI */
+ }, {
+ .test_name = "*",
+ .bus = BUS_USB,
+ .vid = 0x0001,
+ .pid = 0x0a36,
+ }};
+
+ for (int i = 0; i < ARRAY_SIZE(devices); i++) {
+ match = &devices[i];
+ if (!strncmp(_metadata->name, devices[i].test_name, sizeof(devices[i].test_name)))
+ break;
+ }
- /* locate the uev, self, variant);ent file of the created device */
- self->hid_id = get_hid_id(self->dev_id);
- ASSERT_GT(self->hid_id, 0)
- TEARDOWN_LOG("Could not locate uhid device id: %d", self->hid_id);
+ ASSERT_OK_PTR(match);
- err = uhid_start_listener(_metadata, &self->tid, self->uhid_fd);
- ASSERT_EQ(0, err) TEARDOWN_LOG("could not start udev listener: %d", err);
+ err = setup_uhid(_metadata, &self->hid, match->bus, match->vid, match->pid,
+ rdesc, sizeof(rdesc));
+ ASSERT_OK(err);
}
struct test_program {
@@ -129,7 +136,7 @@ static void load_programs(const struct test_program programs[],
ops_hid_id = bpf_map__initial_value(map, NULL);
ASSERT_OK_PTR(ops_hid_id) TH_LOG("unable to retrieve struct_ops data");
- *ops_hid_id = self->hid_id;
+ *ops_hid_id = self->hid.hid_id;
}
/* we disable the auto-attach feature of all maps because we
@@ -157,7 +164,7 @@ static void load_programs(const struct test_program programs[],
hid__attach(self->skel);
- self->hidraw_fd = open_hidraw(self->dev_id);
+ self->hidraw_fd = open_hidraw(&self->hid);
ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
}
@@ -192,7 +199,7 @@ TEST_F(hid_bpf, raw_event)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* check that hid_first_event() was executed */
ASSERT_EQ(self->skel->data->callback_check, 42) TH_LOG("callback_check1");
@@ -208,7 +215,7 @@ TEST_F(hid_bpf, raw_event)
memset(buf, 0, sizeof(buf));
buf[0] = 1;
buf[1] = 47;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* check that hid_first_event() was executed */
ASSERT_EQ(self->skel->data->callback_check, 47) TH_LOG("callback_check1");
@@ -239,7 +246,7 @@ TEST_F(hid_bpf, subprog_raw_event)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -252,7 +259,7 @@ TEST_F(hid_bpf, subprog_raw_event)
memset(buf, 0, sizeof(buf));
buf[0] = 1;
buf[1] = 47;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -303,7 +310,7 @@ TEST_F(hid_bpf, test_attach_detach)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -326,14 +333,14 @@ TEST_F(hid_bpf, test_attach_detach)
/* detach the program */
detach_bpf(self);
- self->hidraw_fd = open_hidraw(self->dev_id);
+ self->hidraw_fd = open_hidraw(&self->hid);
ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
/* inject another event */
memset(buf, 0, sizeof(buf));
buf[0] = 1;
buf[1] = 47;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -352,7 +359,7 @@ TEST_F(hid_bpf, test_attach_detach)
memset(buf, 0, sizeof(buf));
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -382,7 +389,7 @@ TEST_F(hid_bpf, test_hid_change_report)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -412,7 +419,7 @@ TEST_F(hid_bpf, test_hid_user_input_report_call)
LOAD_BPF;
- args.hid = self->hid_id;
+ args.hid = self->hid.hid_id;
args.data[0] = 1; /* report ID */
args.data[1] = 2; /* report ID */
args.data[2] = 42; /* report ID */
@@ -458,7 +465,7 @@ TEST_F(hid_bpf, test_hid_user_output_report_call)
LOAD_BPF;
- args.hid = self->hid_id;
+ args.hid = self->hid.hid_id;
args.data[0] = 1; /* report ID */
args.data[1] = 2; /* report ID */
args.data[2] = 42; /* report ID */
@@ -506,7 +513,7 @@ TEST_F(hid_bpf, test_hid_user_raw_request_call)
LOAD_BPF;
- args.hid = self->hid_id;
+ args.hid = self->hid.hid_id;
args.data[0] = 1; /* report ID */
prog_fd = bpf_program__fd(self->skel->progs.hid_user_raw_request);
@@ -539,7 +546,7 @@ TEST_F(hid_bpf, test_hid_filter_raw_request_call)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -565,7 +572,7 @@ TEST_F(hid_bpf, test_hid_filter_raw_request_call)
/* detach the program */
detach_bpf(self);
- self->hidraw_fd = open_hidraw(self->dev_id);
+ self->hidraw_fd = open_hidraw(&self->hid);
ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
err = ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf);
@@ -641,7 +648,7 @@ TEST_F(hid_bpf, test_hid_filter_output_report_call)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -667,7 +674,7 @@ TEST_F(hid_bpf, test_hid_filter_output_report_call)
/* detach the program */
detach_bpf(self);
- self->hidraw_fd = open_hidraw(self->dev_id);
+ self->hidraw_fd = open_hidraw(&self->hid);
ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
err = write(self->hidraw_fd, buf, 3);
@@ -742,7 +749,7 @@ TEST_F(hid_bpf, test_multiply_events_wq)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -780,7 +787,7 @@ TEST_F(hid_bpf, test_multiply_events)
/* inject one event */
buf[0] = 1;
buf[1] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -816,7 +823,7 @@ TEST_F(hid_bpf, test_hid_infinite_loop_input_report_call)
buf[1] = 2;
buf[2] = 42;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -867,7 +874,7 @@ TEST_F(hid_bpf, test_hid_attach_flags)
/* inject one event */
buf[0] = 1;
- uhid_send_event(_metadata, self->uhid_fd, buf, 6);
+ uhid_send_event(_metadata, &self->hid, buf, 6);
/* read the data from hidraw */
memset(buf, 0, sizeof(buf));
@@ -878,6 +885,54 @@ TEST_F(hid_bpf, test_hid_attach_flags)
ASSERT_EQ(buf[3], 3);
}
+static bool is_using_driver(struct __test_metadata *_metadata, struct uhid_device *hid,
+ const char *driver)
+{
+ char driver_line[512];
+ char uevent[1024];
+ char temp[512];
+ int fd, nread;
+ bool found = false;
+
+ sprintf(uevent, "/sys/bus/hid/devices/%04X:%04X:%04X.%04X/uevent",
+ hid->bus, hid->vid, hid->pid, hid->hid_id);
+
+ fd = open(uevent, O_RDONLY | O_NONBLOCK);
+ if (fd < 0) {
+ TH_LOG("couldn't open '%s': %d, %d", uevent, fd, errno);
+ return false;
+ }
+
+ sprintf(driver_line, "DRIVER=%s", driver);
+
+ nread = read(fd, temp, ARRAY_SIZE(temp));
+ if (nread > 0 && (strstr(temp, driver_line)) != NULL)
+ found = true;
+
+ close(fd);
+
+ return found;
+}
+
+/*
+ * Attach hid_driver_probe to the given uhid device,
+ * check that the device is now using hid-generic.
+ */
+TEST_F(hid_bpf, test_hid_driver_probe)
+{
+ const struct test_program progs[] = {
+ {
+ .name = "hid_test_driver_probe",
+ },
+ };
+
+ ASSERT_TRUE(is_using_driver(_metadata, &self->hid, "apple"));
+
+ LOAD_PROGRAMS(progs);
+
+ ASSERT_TRUE(is_using_driver(_metadata, &self->hid, "hid-generic"));
+}
+
/*
* Attach hid_rdesc_fixup to the given uhid device,
* retrieve and open the matching hidraw node,
generated by cgit (git 2.34.1) at 2025-06-04 22:03:28 +0000