Adding upstream version 241.upstream/241upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 559 insertions, 0 deletions

diff --git a/src/test/test-libudev.c b/src/test/test-libudev.c
new file mode 100644
index 0000000..15c0f88
--- /dev/null
+++ b/src/test/test-libudev.c
@@ -0,0 +1,559 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <sys/epoll.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "build.h"
+#include "fd-util.h"
+#include "libudev-list-internal.h"
+#include "libudev-util.h"
+#include "log.h"
+#include "stdio-util.h"
+#include "string-util.h"
+
+static void print_device(struct udev_device *device) {
+        const char *str;
+        dev_t devnum;
+        int count;
+        struct udev_list_entry *list_entry;
+
+        log_info("*** device: %p ***", device);
+        str = udev_device_get_action(device);
+        if (str != NULL)
+                log_info("action:    '%s'", str);
+
+        str = udev_device_get_syspath(device);
+        log_info("syspath:   '%s'", str);
+
+        str = udev_device_get_sysname(device);
+        log_info("sysname:   '%s'", str);
+
+        str = udev_device_get_sysnum(device);
+        if (str != NULL)
+                log_info("sysnum:    '%s'", str);
+
+        str = udev_device_get_devpath(device);
+        log_info("devpath:   '%s'", str);
+
+        str = udev_device_get_subsystem(device);
+        if (str != NULL)
+                log_info("subsystem: '%s'", str);
+
+        str = udev_device_get_devtype(device);
+        if (str != NULL)
+                log_info("devtype:   '%s'", str);
+
+        str = udev_device_get_driver(device);
+        if (str != NULL)
+                log_info("driver:    '%s'", str);
+
+        str = udev_device_get_devnode(device);
+        if (str != NULL)
+                log_info("devname:   '%s'", str);
+
+        devnum = udev_device_get_devnum(device);
+        if (major(devnum) > 0)
+                log_info("devnum:    %u:%u", major(devnum), minor(devnum));
+
+        count = 0;
+        udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) {
+                log_info("link:      '%s'", udev_list_entry_get_name(list_entry));
+                count++;
+        }
+        if (count > 0)
+                log_info("found %i links", count);
+
+        count = 0;
+        udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device)) {
+                log_info("property:  '%s=%s'",
+                       udev_list_entry_get_name(list_entry),
+                       udev_list_entry_get_value(list_entry));
+                count++;
+        }
+        if (count > 0)
+                log_info("found %i properties", count);
+
+        str = udev_device_get_property_value(device, "MAJOR");
+        if (str != NULL)
+                log_info("MAJOR: '%s'", str);
+
+        str = udev_device_get_sysattr_value(device, "dev");
+        if (str != NULL)
+                log_info("attr{dev}: '%s'", str);
+}
+
+static void test_device(struct udev *udev, const char *syspath) {
+        _cleanup_(udev_device_unrefp) struct udev_device *device;
+
+        log_info("looking at device: %s", syspath);
+        device = udev_device_new_from_syspath(udev, syspath);
+        if (device == NULL)
+                log_warning_errno(errno, "udev_device_new_from_syspath: %m");
+        else
+                print_device(device);
+}
+
+static void test_device_parents(struct udev *udev, const char *syspath) {
+        _cleanup_(udev_device_unrefp) struct udev_device *device;
+        struct udev_device *device_parent;
+
+        log_info("looking at device: %s", syspath);
+        device = udev_device_new_from_syspath(udev, syspath);
+        if (device == NULL)
+                return;
+
+        log_info("looking at parents");
+        device_parent = device;
+        do {
+                print_device(device_parent);
+                device_parent = udev_device_get_parent(device_parent);
+        } while (device_parent != NULL);
+
+        log_info("looking at parents again");
+        device_parent = device;
+        do {
+                print_device(device_parent);
+                device_parent = udev_device_get_parent(device_parent);
+        } while (device_parent != NULL);
+}
+
+static void test_device_devnum(struct udev *udev) {
+        dev_t devnum = makedev(1, 3);
+        _cleanup_(udev_device_unrefp) struct udev_device *device;
+
+        log_info("looking up device: %u:%u", major(devnum), minor(devnum));
+        device = udev_device_new_from_devnum(udev, 'c', devnum);
+        if (device == NULL)
+                log_warning_errno(errno, "udev_device_new_from_devnum: %m");
+        else
+                print_device(device);
+}
+
+static void test_device_subsys_name(struct udev *udev, const char *subsys, const char *dev) {
+        _cleanup_(udev_device_unrefp) struct udev_device *device;
+
+        log_info("looking up device: '%s:%s'", subsys, dev);
+        device = udev_device_new_from_subsystem_sysname(udev, subsys, dev);
+        if (device == NULL)
+                log_warning_errno(errno, "udev_device_new_from_subsystem_sysname: %m");
+        else
+                print_device(device);
+}
+
+static int test_enumerate_print_list(struct udev_enumerate *enumerate) {
+        struct udev_list_entry *list_entry;
+        int count = 0;
+
+        udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) {
+                struct udev_device *device;
+
+                device = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerate),
+                                                      udev_list_entry_get_name(list_entry));
+                if (device != NULL) {
+                        log_info("device: '%s' (%s)",
+                                 udev_device_get_syspath(device),
+                                 udev_device_get_subsystem(device));
+                        udev_device_unref(device);
+                        count++;
+                }
+        }
+        log_info("found %i devices", count);
+        return count;
+}
+
+static void test_monitor(struct udev *udev) {
+        _cleanup_(udev_monitor_unrefp) struct udev_monitor *udev_monitor;
+        _cleanup_close_ int fd_ep;
+        int fd_udev;
+        struct epoll_event ep_udev = {
+                .events = EPOLLIN,
+        }, ep_stdin = {
+                .events = EPOLLIN,
+                .data.fd = STDIN_FILENO,
+        };
+
+        fd_ep = epoll_create1(EPOLL_CLOEXEC);
+        assert_se(fd_ep >= 0);
+
+        udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
+        assert_se(udev_monitor != NULL);
+
+        fd_udev = udev_monitor_get_fd(udev_monitor);
+        ep_udev.data.fd = fd_udev;
+
+        assert_se(udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "block", NULL) >= 0);
+        assert_se(udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL) >= 0);
+        assert_se(udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device") >= 0);
+
+        assert_se(udev_monitor_enable_receiving(udev_monitor) >= 0);
+
+        assert_se(epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_udev, &ep_udev) >= 0);
+        assert_se(epoll_ctl(fd_ep, EPOLL_CTL_ADD, STDIN_FILENO, &ep_stdin) >= 0);
+
+        for (;;) {
+                int fdcount;
+                struct epoll_event ev[4];
+                struct udev_device *device;
+                int i;
+
+                printf("waiting for events from udev, press ENTER to exit\n");
+                fdcount = epoll_wait(fd_ep, ev, ELEMENTSOF(ev), -1);
+                printf("epoll fd count: %i\n", fdcount);
+
+                for (i = 0; i < fdcount; i++) {
+                        if (ev[i].data.fd == fd_udev && ev[i].events & EPOLLIN) {
+                                device = udev_monitor_receive_device(udev_monitor);
+                                if (device == NULL) {
+                                        printf("no device from socket\n");
+                                        continue;
+                                }
+                                print_device(device);
+                                udev_device_unref(device);
+                        } else if (ev[i].data.fd == STDIN_FILENO && ev[i].events & EPOLLIN) {
+                                printf("exiting loop\n");
+                                return;
+                        }
+                }
+        }
+}
+
+static void test_queue(struct udev *udev) {
+        struct udev_queue *udev_queue;
+        bool empty;
+
+        udev_queue = udev_queue_new(udev);
+        assert_se(udev_queue);
+
+        empty = udev_queue_get_queue_is_empty(udev_queue);
+        log_info("queue is %s", empty ? "empty" : "not empty");
+        udev_queue_unref(udev_queue);
+}
+
+static int test_enumerate(struct udev *udev, const char *subsystem) {
+        struct udev_enumerate *udev_enumerate;
+        int r;
+
+        log_info("enumerate '%s'", subsystem == NULL ? "<all>" : subsystem);
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return -1;
+        udev_enumerate_add_match_subsystem(udev_enumerate, subsystem);
+        udev_enumerate_scan_devices(udev_enumerate);
+        test_enumerate_print_list(udev_enumerate);
+        udev_enumerate_unref(udev_enumerate);
+
+        log_info("enumerate 'net' + duplicated scan + null + zero");
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return -1;
+        udev_enumerate_add_match_subsystem(udev_enumerate, "net");
+        udev_enumerate_scan_devices(udev_enumerate);
+        udev_enumerate_scan_devices(udev_enumerate);
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+        udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero");
+        udev_enumerate_scan_devices(udev_enumerate);
+        test_enumerate_print_list(udev_enumerate);
+        udev_enumerate_unref(udev_enumerate);
+
+        log_info("enumerate 'block'");
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return -1;
+        udev_enumerate_add_match_subsystem(udev_enumerate,"block");
+        r = udev_enumerate_add_match_is_initialized(udev_enumerate);
+        if (r < 0) {
+                udev_enumerate_unref(udev_enumerate);
+                return r;
+        }
+        udev_enumerate_scan_devices(udev_enumerate);
+        test_enumerate_print_list(udev_enumerate);
+        udev_enumerate_unref(udev_enumerate);
+
+        log_info("enumerate 'not block'");
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return -1;
+        udev_enumerate_add_nomatch_subsystem(udev_enumerate, "block");
+        udev_enumerate_scan_devices(udev_enumerate);
+        test_enumerate_print_list(udev_enumerate);
+        udev_enumerate_unref(udev_enumerate);
+
+        log_info("enumerate 'pci, mem, vc'");
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return -1;
+        udev_enumerate_add_match_subsystem(udev_enumerate, "pci");
+        udev_enumerate_add_match_subsystem(udev_enumerate, "mem");
+        udev_enumerate_add_match_subsystem(udev_enumerate, "vc");
+        udev_enumerate_scan_devices(udev_enumerate);
+        test_enumerate_print_list(udev_enumerate);
+        udev_enumerate_unref(udev_enumerate);
+
+        log_info("enumerate 'subsystem'");
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return -1;
+        udev_enumerate_scan_subsystems(udev_enumerate);
+        test_enumerate_print_list(udev_enumerate);
+        udev_enumerate_unref(udev_enumerate);
+
+        log_info("enumerate 'property IF_FS_*=filesystem'");
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return -1;
+        udev_enumerate_add_match_property(udev_enumerate, "ID_FS*", "filesystem");
+        udev_enumerate_scan_devices(udev_enumerate);
+        test_enumerate_print_list(udev_enumerate);
+        udev_enumerate_unref(udev_enumerate);
+        return 0;
+}
+
+static void test_hwdb(struct udev *udev, const char *modalias) {
+        struct udev_hwdb *hwdb;
+        struct udev_list_entry *entry;
+
+        hwdb = udev_hwdb_new(udev);
+
+        udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, modalias, 0))
+                log_info("'%s'='%s'", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry));
+
+        hwdb = udev_hwdb_unref(hwdb);
+        assert_se(hwdb == NULL);
+}
+
+static void test_util_replace_whitespace_one_len(const char *str, size_t len, const char *expected) {
+        _cleanup_free_ char *result = NULL;
+        int r;
+
+        result = new(char, len + 1);
+        assert_se(result);
+        r = util_replace_whitespace(str, result, len);
+        assert_se((size_t) r == strlen(expected));
+        assert_se(streq(result, expected));
+}
+
+static void test_util_replace_whitespace_one(const char *str, const char *expected) {
+        test_util_replace_whitespace_one_len(str, strlen(str), expected);
+}
+
+static void test_util_replace_whitespace(void) {
+        test_util_replace_whitespace_one("hogehoge", "hogehoge");
+        test_util_replace_whitespace_one("hoge  hoge", "hoge_hoge");
+        test_util_replace_whitespace_one("  hoge  hoge  ", "hoge_hoge");
+        test_util_replace_whitespace_one("     ", "");
+        test_util_replace_whitespace_one("hoge ", "hoge");
+
+        test_util_replace_whitespace_one_len("hoge hoge    ", 9, "hoge_hoge");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 8, "hoge_hog");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 7, "hoge_ho");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 6, "hoge_h");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 5, "hoge");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 4, "hoge");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 3, "hog");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 2, "ho");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 1, "h");
+        test_util_replace_whitespace_one_len("hoge hoge    ", 0, "");
+
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 16, "hoge_hoge");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 15, "hoge_hoge");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 14, "hoge_hog");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 13, "hoge_ho");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 12, "hoge_h");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 11, "hoge");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 10, "hoge");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 9, "hoge");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 8, "hoge");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 7, "hog");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 6, "ho");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 5, "h");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 4, "");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 3, "");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 2, "");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 1, "");
+        test_util_replace_whitespace_one_len("    hoge   hoge    ", 0, "");
+}
+
+static void test_util_resolve_subsys_kernel_one(const char *str, bool read_value, int retval, const char *expected) {
+        char result[UTIL_PATH_SIZE];
+        int r;
+
+        r = util_resolve_subsys_kernel(str, result, sizeof(result), read_value);
+        assert_se(r == retval);
+        if (r >= 0)
+                assert_se(streq(result, expected));
+}
+
+static void test_util_resolve_subsys_kernel(void) {
+        test_util_resolve_subsys_kernel_one("hoge", false, -EINVAL, NULL);
+        test_util_resolve_subsys_kernel_one("[hoge", false, -EINVAL, NULL);
+        test_util_resolve_subsys_kernel_one("[hoge/foo", false, -EINVAL, NULL);
+        test_util_resolve_subsys_kernel_one("[hoge/]", false, -ENODEV, NULL);
+
+        test_util_resolve_subsys_kernel_one("[net/lo]", false, 0, "/sys/devices/virtual/net/lo");
+        test_util_resolve_subsys_kernel_one("[net/lo]/", false, 0, "/sys/devices/virtual/net/lo");
+        test_util_resolve_subsys_kernel_one("[net/lo]hoge", false, 0, "/sys/devices/virtual/net/lo/hoge");
+        test_util_resolve_subsys_kernel_one("[net/lo]/hoge", false, 0, "/sys/devices/virtual/net/lo/hoge");
+
+        test_util_resolve_subsys_kernel_one("[net/lo]", true, -EINVAL, NULL);
+        test_util_resolve_subsys_kernel_one("[net/lo]/", true, -EINVAL, NULL);
+        test_util_resolve_subsys_kernel_one("[net/lo]hoge", true, 0, "");
+        test_util_resolve_subsys_kernel_one("[net/lo]/hoge", true, 0, "");
+        test_util_resolve_subsys_kernel_one("[net/lo]address", true, 0, "00:00:00:00:00:00");
+        test_util_resolve_subsys_kernel_one("[net/lo]/address", true, 0, "00:00:00:00:00:00");
+}
+
+static void test_list(void) {
+        struct udev_list list = {};
+        struct udev_list_entry *e;
+
+        /* empty list */
+        udev_list_init(&list, false);
+        assert_se(!udev_list_get_entry(&list));
+
+        /* unique == false */
+        udev_list_init(&list, false);
+        assert_se(udev_list_entry_add(&list, "aaa", "hoge"));
+        assert_se(udev_list_entry_add(&list, "aaa", "hogehoge"));
+        assert_se(udev_list_entry_add(&list, "bbb", "foo"));
+        e = udev_list_get_entry(&list);
+        assert_se(e);
+        assert_se(streq_ptr(udev_list_entry_get_name(e), "aaa"));
+        assert_se(streq_ptr(udev_list_entry_get_value(e), "hoge"));
+        e = udev_list_entry_get_next(e);
+        assert_se(e);
+        assert_se(streq_ptr(udev_list_entry_get_name(e), "aaa"));
+        assert_se(streq_ptr(udev_list_entry_get_value(e), "hogehoge"));
+        e = udev_list_entry_get_next(e);
+        assert_se(e);
+        assert_se(streq_ptr(udev_list_entry_get_name(e), "bbb"));
+        assert_se(streq_ptr(udev_list_entry_get_value(e), "foo"));
+        assert_se(!udev_list_entry_get_next(e));
+
+        assert_se(!udev_list_entry_get_by_name(e, "aaa"));
+        assert_se(!udev_list_entry_get_by_name(e, "bbb"));
+        assert_se(!udev_list_entry_get_by_name(e, "ccc"));
+        udev_list_cleanup(&list);
+
+        /* unique == true */
+        udev_list_init(&list, true);
+        assert_se(udev_list_entry_add(&list, "aaa", "hoge"));
+        assert_se(udev_list_entry_add(&list, "aaa", "hogehoge"));
+        assert_se(udev_list_entry_add(&list, "bbb", "foo"));
+        e = udev_list_get_entry(&list);
+        assert_se(e);
+        assert_se(streq_ptr(udev_list_entry_get_name(e), "aaa"));
+        assert_se(streq_ptr(udev_list_entry_get_value(e), "hogehoge"));
+        e = udev_list_entry_get_next(e);
+        assert_se(streq_ptr(udev_list_entry_get_name(e), "bbb"));
+        assert_se(streq_ptr(udev_list_entry_get_value(e), "foo"));
+        assert_se(!udev_list_entry_get_next(e));
+
+        e = udev_list_entry_get_by_name(e, "bbb");
+        assert_se(e);
+        assert_se(streq_ptr(udev_list_entry_get_name(e), "bbb"));
+        assert_se(streq_ptr(udev_list_entry_get_value(e), "foo"));
+        e = udev_list_entry_get_by_name(e, "aaa");
+        assert_se(e);
+        assert_se(streq_ptr(udev_list_entry_get_name(e), "aaa"));
+        assert_se(streq_ptr(udev_list_entry_get_value(e), "hogehoge"));
+        assert_se(!udev_list_entry_get_by_name(e, "ccc"));
+        udev_list_cleanup(&list);
+}
+
+int main(int argc, char *argv[]) {
+        _cleanup_(udev_unrefp) struct udev *udev = NULL;
+        bool arg_monitor = false;
+        static const struct option options[] = {
+                { "syspath",   required_argument, NULL, 'p' },
+                { "subsystem", required_argument, NULL, 's' },
+                { "debug",     no_argument,       NULL, 'd' },
+                { "help",      no_argument,       NULL, 'h' },
+                { "version",   no_argument,       NULL, 'V' },
+                { "monitor",   no_argument,       NULL, 'm' },
+                {}
+        };
+        const char *syspath = "/devices/virtual/mem/null";
+        const char *subsystem = NULL;
+        int c;
+
+        udev = udev_new();
+        log_info("context: %p", udev);
+        if (udev == NULL) {
+                log_info("no context");
+                return 1;
+        }
+
+        while ((c = getopt_long(argc, argv, "p:s:dhVm", options, NULL)) >= 0)
+                switch (c) {
+
+                case 'p':
+                        syspath = optarg;
+                        break;
+
+                case 's':
+                        subsystem = optarg;
+                        break;
+
+                case 'd':
+                        if (log_get_max_level() < LOG_INFO)
+                                log_set_max_level(LOG_INFO);
+                        break;
+
+                case 'h':
+                        printf("--debug --syspath= --subsystem= --help\n");
+                        return EXIT_SUCCESS;
+
+                case 'V':
+                        printf("%s\n", GIT_VERSION);
+                        return EXIT_SUCCESS;
+
+                case 'm':
+                        arg_monitor = true;
+                        break;
+
+                case '?':
+                        return EXIT_FAILURE;
+
+                default:
+                        assert_not_reached("Unhandled option code.");
+                }
+
+        /* add sys path if needed */
+        if (!startswith(syspath, "/sys"))
+                syspath = strjoina("/sys/", syspath);
+
+        test_device(udev, syspath);
+        test_device_devnum(udev);
+        test_device_subsys_name(udev, "block", "sda");
+        test_device_subsys_name(udev, "subsystem", "pci");
+        test_device_subsys_name(udev, "drivers", "scsi:sd");
+        test_device_subsys_name(udev, "module", "printk");
+        test_device_parents(udev, syspath);
+
+        test_enumerate(udev, subsystem);
+
+        test_queue(udev);
+
+        test_hwdb(udev, "usb:v0D50p0011*");
+
+        if (arg_monitor)
+                test_monitor(udev);
+
+        test_util_replace_whitespace();
+        test_util_resolve_subsys_kernel();
+
+        test_list();
+
+        return EXIT_SUCCESS;
+}