diff options
Diffstat (limited to 'udev/udevd.c')
| -rw-r--r-- | udev/udevd.c | 98 |
1 files changed, 97 insertions, 1 deletions
diff --git a/udev/udevd.c b/udev/udevd.c index aa2e3657f0..fe0e3c3929 100644 --- a/udev/udevd.c +++ b/udev/udevd.c @@ -971,6 +971,99 @@ static int mem_size_mb(void) return memsize; } +static int convert_db(struct udev *udev) +{ + char filename[UTIL_PATH_SIZE]; + FILE *f; + struct udev_enumerate *udev_enumerate; + struct udev_list_entry *list_entry; + + /* current database */ + util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.run/udev/db3", NULL); + if (access(filename, F_OK) >= 0) + return 0; + + /* make sure we do not get here again */ + util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.run/udev/db3/", NULL); + util_create_path(udev, filename); + + /* old database */ + util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/db", NULL); + if (access(filename, F_OK) < 0) + return 0; + + f = fopen("/dev/kmsg", "w"); + if (f != NULL) { + fprintf(f, "<6>udev[%u]: converting old udev database\n", getpid()); + fclose(f); + } + + udev_enumerate = udev_enumerate_new(udev); + if (udev_enumerate == NULL) + return -1; + udev_enumerate_scan_devices(udev_enumerate); + udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(udev_enumerate)) { + struct udev_device *device; + + device = udev_device_new_from_syspath(udev, udev_list_entry_get_name(list_entry)); + if (device == NULL) + continue; + + /* try to find the old database for devices without a current one */ + if (udev_device_read_db(device, NULL) < 0) { + bool have_db; + const char *id; + struct stat stats; + char devpath[UTIL_PATH_SIZE]; + char from[UTIL_PATH_SIZE]; + + have_db = false; + + /* find database in old location */ + id = udev_device_get_id_filename(device); + util_strscpyl(from, sizeof(from), udev_get_dev_path(udev), "/.udev/db/", id, NULL); + if (lstat(from, &stats) == 0) { + if (!have_db) { + udev_device_read_db(device, from); + have_db = true; + } + unlink(from); + } + + /* find old database with $subsys:$sysname name */ + util_strscpyl(from, sizeof(from), udev_get_dev_path(udev), + "/.udev/db/", udev_device_get_subsystem(device), ":", + udev_device_get_sysname(device), NULL); + if (lstat(from, &stats) == 0) { + if (!have_db) { + udev_device_read_db(device, from); + have_db = true; + } + unlink(from); + } + + /* find old database with the encoded devpath name */ + util_path_encode(udev_device_get_devpath(device), devpath, sizeof(devpath)); + util_strscpyl(from, sizeof(from), udev_get_dev_path(udev), + "/.udev/db/", devpath, NULL); + if (lstat(from, &stats) == 0) { + if (!have_db) { + udev_device_read_db(device, from); + have_db = true; + } + unlink(from); + } + + /* write out new database */ + if (have_db) + udev_device_update_db(device); + } + udev_device_unref(device); + } + udev_enumerate_unref(udev_enumerate); + return 0; +} + int main(int argc, char *argv[]) { struct udev *udev; @@ -1159,7 +1252,7 @@ int main(int argc, char *argv[]) IN_DELETE | IN_MOVE | IN_CLOSE_WRITE); /* watch dynamic rules directory */ - util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/rules.d", NULL); + util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.run/udev/rules.d", NULL); if (stat(filename, &statbuf) != 0) { util_create_path(udev, filename); udev_selinux_setfscreatecon(udev, filename, S_IFDIR|0755); @@ -1203,6 +1296,9 @@ int main(int argc, char *argv[]) goto exit; } + /* if needed, convert old database from earlier udev version */ + convert_db(udev); + if (!debug) { dup2(fd, STDIN_FILENO); dup2(fd, STDOUT_FILENO); |