./tools/notsd-move

1 files changed, 287 insertions, 0 deletions

diff --git a/src/grp-udev/udevadm/udevadm-trigger.c b/src/grp-udev/udevadm/udevadm-trigger.c
new file mode 100644
index 0000000000..150b1e5a9a
--- /dev/null
+++ b/src/grp-udev/udevadm/udevadm-trigger.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2008-2009 Kay Sievers <kay@vrfy.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "systemd-basic/string-util.h"
+#include "systemd-basic/util.h"
+#include "systemd-shared/udev-util.h"
+#include "udev.h"
+
+#include "udevadm-util.h"
+
+static int verbose;
+static int dry_run;
+
+static void exec_list(struct udev_enumerate *udev_enumerate, const char *action) {
+        struct udev_list_entry *entry;
+
+        udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(udev_enumerate)) {
+                char filename[UTIL_PATH_SIZE];
+                int fd;
+
+                if (verbose)
+                        printf("%s\n", udev_list_entry_get_name(entry));
+                if (dry_run)
+                        continue;
+                strscpyl(filename, sizeof(filename), udev_list_entry_get_name(entry), "/uevent", NULL);
+                fd = open(filename, O_WRONLY|O_CLOEXEC);
+                if (fd < 0)
+                        continue;
+                if (write(fd, action, strlen(action)) < 0)
+                        log_debug_errno(errno, "error writing '%s' to '%s': %m", action, filename);
+                close(fd);
+        }
+}
+
+static const char *keyval(const char *str, const char **val, char *buf, size_t size) {
+        char *pos;
+
+        strscpy(buf, size,str);
+        pos = strchr(buf, '=');
+        if (pos != NULL) {
+                pos[0] = 0;
+                pos++;
+        }
+        *val = pos;
+        return buf;
+}
+
+static void help(void) {
+        printf("%s trigger OPTIONS\n\n"
+               "Request events from the kernel.\n\n"
+               "  -h --help                         Show this help\n"
+               "     --version                      Show package version\n"
+               "  -v --verbose                      Print the list of devices while running\n"
+               "  -n --dry-run                      Do not actually trigger the events\n"
+               "  -t --type=                        Type of events to trigger\n"
+               "          devices                     sysfs devices (default)\n"
+               "          subsystems                  sysfs subsystems and drivers\n"
+               "  -c --action=ACTION                Event action value, default is \"change\"\n"
+               "  -s --subsystem-match=SUBSYSTEM    Trigger devices from a matching subsystem\n"
+               "  -S --subsystem-nomatch=SUBSYSTEM  Exclude devices from a matching subsystem\n"
+               "  -a --attr-match=FILE[=VALUE]      Trigger devices with a matching attribute\n"
+               "  -A --attr-nomatch=FILE[=VALUE]    Exclude devices with a matching attribute\n"
+               "  -p --property-match=KEY=VALUE     Trigger devices with a matching property\n"
+               "  -g --tag-match=KEY=VALUE          Trigger devices with a matching property\n"
+               "  -y --sysname-match=NAME           Trigger devices with this /sys path\n"
+               "     --name-match=NAME              Trigger devices with this /dev name\n"
+               "  -b --parent-match=NAME            Trigger devices with that parent device\n"
+               , program_invocation_short_name);
+}
+
+static int adm_trigger(struct udev *udev, int argc, char *argv[]) {
+        enum {
+                ARG_NAME = 0x100,
+        };
+
+        static const struct option options[] = {
+                { "verbose",           no_argument,       NULL, 'v'      },
+                { "dry-run",           no_argument,       NULL, 'n'      },
+                { "type",              required_argument, NULL, 't'      },
+                { "action",            required_argument, NULL, 'c'      },
+                { "subsystem-match",   required_argument, NULL, 's'      },
+                { "subsystem-nomatch", required_argument, NULL, 'S'      },
+                { "attr-match",        required_argument, NULL, 'a'      },
+                { "attr-nomatch",      required_argument, NULL, 'A'      },
+                { "property-match",    required_argument, NULL, 'p'      },
+                { "tag-match",         required_argument, NULL, 'g'      },
+                { "sysname-match",     required_argument, NULL, 'y'      },
+                { "name-match",        required_argument, NULL, ARG_NAME },
+                { "parent-match",      required_argument, NULL, 'b'      },
+                { "help",              no_argument,       NULL, 'h'      },
+                {}
+        };
+        enum {
+                TYPE_DEVICES,
+                TYPE_SUBSYSTEMS,
+        } device_type = TYPE_DEVICES;
+        const char *action = "change";
+        _cleanup_udev_enumerate_unref_ struct udev_enumerate *udev_enumerate = NULL;
+        int c, r;
+
+        udev_enumerate = udev_enumerate_new(udev);
+        if (udev_enumerate == NULL)
+                return 1;
+
+        while ((c = getopt_long(argc, argv, "vno:t:c:s:S:a:A:p:g:y:b:h", options, NULL)) >= 0) {
+                const char *key;
+                const char *val;
+                char buf[UTIL_PATH_SIZE];
+
+                switch (c) {
+                case 'v':
+                        verbose = 1;
+                        break;
+                case 'n':
+                        dry_run = 1;
+                        break;
+                case 't':
+                        if (streq(optarg, "devices"))
+                                device_type = TYPE_DEVICES;
+                        else if (streq(optarg, "subsystems"))
+                                device_type = TYPE_SUBSYSTEMS;
+                        else {
+                                log_error("unknown type --type=%s", optarg);
+                                return 2;
+                        }
+                        break;
+                case 'c':
+                        if (!nulstr_contains("add\0" "remove\0" "change\0", optarg)) {
+                                log_error("unknown action '%s'", optarg);
+                                return 2;
+                        } else
+                                action = optarg;
+
+                        break;
+                case 's':
+                        r = udev_enumerate_add_match_subsystem(udev_enumerate, optarg);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add subsystem match '%s': %m", optarg);
+                                return 2;
+                        }
+                        break;
+                case 'S':
+                        r = udev_enumerate_add_nomatch_subsystem(udev_enumerate, optarg);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add negative subsystem match '%s': %m", optarg);
+                                return 2;
+                        }
+                        break;
+                case 'a':
+                        key = keyval(optarg, &val, buf, sizeof(buf));
+                        r = udev_enumerate_add_match_sysattr(udev_enumerate, key, val);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add sysattr match '%s=%s': %m", key, val);
+                                return 2;
+                        }
+                        break;
+                case 'A':
+                        key = keyval(optarg, &val, buf, sizeof(buf));
+                        r = udev_enumerate_add_nomatch_sysattr(udev_enumerate, key, val);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add negative sysattr match '%s=%s': %m", key, val);
+                                return 2;
+                        }
+                        break;
+                case 'p':
+                        key = keyval(optarg, &val, buf, sizeof(buf));
+                        r = udev_enumerate_add_match_property(udev_enumerate, key, val);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add property match '%s=%s': %m", key, val);
+                                return 2;
+                        }
+                        break;
+                case 'g':
+                        r = udev_enumerate_add_match_tag(udev_enumerate, optarg);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add tag match '%s': %m", optarg);
+                                return 2;
+                        }
+                        break;
+                case 'y':
+                        r = udev_enumerate_add_match_sysname(udev_enumerate, optarg);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add sysname match '%s': %m", optarg);
+                                return 2;
+                        }
+                        break;
+                case 'b': {
+                        _cleanup_udev_device_unref_ struct udev_device *dev;
+
+                        dev = find_device(udev, optarg, "/sys");
+                        if (dev == NULL) {
+                                log_error("unable to open the device '%s'", optarg);
+                                return 2;
+                        }
+
+                        r = udev_enumerate_add_match_parent(udev_enumerate, dev);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add parent match '%s': %m", optarg);
+                                return 2;
+                        }
+                        break;
+                }
+
+                case ARG_NAME: {
+                        _cleanup_udev_device_unref_ struct udev_device *dev;
+
+                        dev = find_device(udev, optarg, "/dev/");
+                        if (dev == NULL) {
+                                log_error("unable to open the device '%s'", optarg);
+                                return 2;
+                        }
+
+                        r = udev_enumerate_add_match_parent(udev_enumerate, dev);
+                        if (r < 0) {
+                                log_error_errno(r, "could not add parent match '%s': %m", optarg);
+                                return 2;
+                        }
+                        break;
+                }
+
+                case 'h':
+                        help();
+                        return 0;
+                case '?':
+                        return 1;
+                default:
+                        assert_not_reached("Unknown option");
+                }
+        }
+
+        for (; optind < argc; optind++) {
+                _cleanup_udev_device_unref_ struct udev_device *dev;
+
+                dev = find_device(udev, argv[optind], NULL);
+                if (dev == NULL) {
+                        log_error("unable to open the device '%s'", argv[optind]);
+                        return 2;
+                }
+
+                r = udev_enumerate_add_match_parent(udev_enumerate, dev);
+                if (r < 0) {
+                        log_error_errno(r, "could not add tag match '%s': %m", optarg);
+                        return 2;
+                }
+        }
+
+        switch (device_type) {
+        case TYPE_SUBSYSTEMS:
+                udev_enumerate_scan_subsystems(udev_enumerate);
+                exec_list(udev_enumerate, action);
+                return 0;
+        case TYPE_DEVICES:
+                udev_enumerate_scan_devices(udev_enumerate);
+                exec_list(udev_enumerate, action);
+                return 0;
+        default:
+                assert_not_reached("device_type");
+        }
+}
+
+const struct udevadm_cmd udevadm_trigger = {
+        .name = "trigger",
+        .cmd = adm_trigger,
+        .help = "Request events from the kernel",
+};