merge: branch 'bg/systemd-fix'
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2223
This commit is contained in:
@@ -133,7 +133,6 @@ char** device_make_log_fields(sd_device *device) {
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return TAKE_PTR(strv);
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}
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#endif /* NM_IGNORED */
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bool device_in_subsystem(sd_device *device, const char *subsystem) {
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@@ -145,6 +144,7 @@ bool device_in_subsystem(sd_device *device, const char *subsystem) {
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return streq_ptr(s, subsystem);
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}
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#if 0 /* NM_IGNORED */
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bool device_is_devtype(sd_device *device, const char *devtype) {
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const char *s = NULL;
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@@ -153,3 +153,4 @@ bool device_is_devtype(sd_device *device, const char *devtype) {
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(void) sd_device_get_devtype(device, &s);
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return streq_ptr(s, devtype);
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}
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#endif /* NM_IGNORED */
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@@ -805,52 +805,89 @@ static int handle_uevent_line(
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}
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int device_read_uevent_file(sd_device *device) {
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_cleanup_free_ char *uevent = NULL;
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const char *syspath, *key = NULL, *value = NULL, *major = NULL, *minor = NULL;
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char *path;
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size_t uevent_len;
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int r;
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enum {
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PRE_KEY,
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KEY,
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PRE_VALUE,
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VALUE,
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INVALID_LINE,
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} state = PRE_KEY;
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assert(device);
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if (device->uevent_loaded || device->sealed)
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return 0;
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r = sd_device_get_syspath(device, &syspath);
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if (r < 0)
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return r;
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device->uevent_loaded = true;
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const char *uevent;
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r = sd_device_get_sysattr_value(device, "uevent", &uevent);
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if (ERRNO_IS_NEG_PRIVILEGE(r) || ERRNO_IS_NEG_DEVICE_ABSENT(r))
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path = strjoina(syspath, "/uevent");
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r = read_full_virtual_file(path, &uevent, &uevent_len);
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if (r == -EACCES || ERRNO_IS_NEG_DEVICE_ABSENT(r))
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/* The uevent files may be write-only, the device may be already removed, or the device
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* may not have the uevent file. */
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return 0;
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if (r < 0)
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return log_device_debug_errno(device, r, "sd-device: Failed to read uevent file: %m");
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return log_device_debug_errno(device, r, "sd-device: Failed to read uevent file '%s': %m", path);
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_cleanup_strv_free_ char **v = NULL;
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r = strv_split_newlines_full(&v, uevent, EXTRACT_RETAIN_ESCAPE);
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if (r < 0)
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return log_device_debug_errno(device, r, "sd-device: Failed to parse uevent file: %m");
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for (size_t i = 0; i < uevent_len; i++)
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switch (state) {
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case PRE_KEY:
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if (!strchr(NEWLINE, uevent[i])) {
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key = &uevent[i];
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const char *major = NULL, *minor = NULL;
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STRV_FOREACH(s, v) {
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char *eq = strchr(*s, '=');
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if (!eq) {
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log_device_debug(device, "sd-device: Invalid uevent line, ignoring: %s", *s);
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continue;
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state = KEY;
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}
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*eq = '\0';
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break;
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case KEY:
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if (uevent[i] == '=') {
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uevent[i] = '\0';
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r = handle_uevent_line(device, *s, eq + 1, &major, &minor);
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state = PRE_VALUE;
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} else if (strchr(NEWLINE, uevent[i])) {
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uevent[i] = '\0';
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log_device_debug(device, "sd-device: Invalid uevent line '%s', ignoring", key);
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state = PRE_KEY;
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}
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break;
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case PRE_VALUE:
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value = &uevent[i];
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state = VALUE;
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_fallthrough_; /* to handle empty property */
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case VALUE:
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if (strchr(NEWLINE, uevent[i])) {
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uevent[i] = '\0';
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r = handle_uevent_line(device, key, value, &major, &minor);
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if (r < 0)
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log_device_debug_errno(device, r,
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"sd-device: Failed to handle uevent entry '%s=%s', ignoring: %m",
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*s, eq + 1);
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log_device_debug_errno(device, r, "sd-device: Failed to handle uevent entry '%s=%s', ignoring: %m", key, value);
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state = PRE_KEY;
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}
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break;
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default:
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assert_not_reached();
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}
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if (major) {
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r = device_set_devnum(device, major, minor);
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if (r < 0)
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log_device_debug_errno(device, r,
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"sd-device: Failed to set 'MAJOR=%s' and/or 'MINOR=%s' from uevent, ignoring: %m",
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major, strna(minor));
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log_device_debug_errno(device, r, "sd-device: Failed to set 'MAJOR=%s' or 'MINOR=%s' from '%s', ignoring: %m", major, strna(minor), path);
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}
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if (device_in_subsystem(device, "drivers")) {
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@@ -1226,24 +1263,35 @@ _public_ int sd_device_get_subsystem(sd_device *device, const char **ret) {
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return r;
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if (!device->subsystem_set) {
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const char *subsystem;
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_cleanup_free_ char *subsystem = NULL;
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const char *syspath;
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char *path;
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r = sd_device_get_sysattr_value(device, "subsystem", &subsystem);
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r = sd_device_get_syspath(device, &syspath);
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if (r < 0)
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return r;
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/* read 'subsystem' link */
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path = strjoina(syspath, "/subsystem");
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r = readlink_value(path, &subsystem);
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if (r < 0 && r != -ENOENT)
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return log_device_debug_errno(device, r,
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"sd-device: Failed to read subsystem for %s: %m",
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device->devpath);
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if (r >= 0)
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if (subsystem)
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r = device_set_subsystem(device, subsystem);
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/* use implicit names */
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else if (!isempty(path_startswith(device->devpath, "/module/")))
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r = device_set_subsystem(device, "module");
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else if (strstr(device->devpath, "/drivers/") || endswith(device->devpath, "/drivers"))
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else if (strstr(syspath, "/drivers/") || endswith(syspath, "/drivers"))
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r = device_set_drivers_subsystem(device);
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else if (!isempty(PATH_STARTSWITH_SET(device->devpath, "/class/", "/bus/")))
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r = device_set_subsystem(device, "subsystem");
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else
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r = device_set_subsystem(device, NULL);
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else {
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device->subsystem_set = true;
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r = 0;
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}
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if (r < 0)
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return log_device_debug_errno(device, r,
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"sd-device: Failed to set subsystem for %s: %m",
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@@ -1355,8 +1403,6 @@ int device_set_driver(sd_device *device, const char *driver) {
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#if 0 /* NM_IGNORED */
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_public_ int sd_device_get_driver(sd_device *device, const char **ret) {
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int r;
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assert_return(device, -EINVAL);
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r = device_read_uevent_file(device);
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@@ -1364,12 +1410,20 @@ _public_ int sd_device_get_driver(sd_device *device, const char **ret) {
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return r;
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if (!device->driver_set) {
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const char *driver = NULL;
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_cleanup_free_ char *driver = NULL;
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const char *syspath;
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char *path;
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int r;
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r = sd_device_get_sysattr_value(device, "driver", &driver);
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r = sd_device_get_syspath(device, &syspath);
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if (r < 0)
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return r;
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path = strjoina(syspath, "/driver");
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r = readlink_value(path, &driver);
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if (r < 0 && r != -ENOENT)
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return log_device_debug_errno(device, r,
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"sd-device: Failed to read driver: %m");
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"sd-device: readlink(\"%s\") failed: %m", path);
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r = device_set_driver(device, driver);
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if (r < 0)
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