diff options
Diffstat (limited to 'extras/volume_id/udev_volume_id.c')
-rw-r--r-- | extras/volume_id/udev_volume_id.c | 80 |
1 files changed, 59 insertions, 21 deletions
diff --git a/extras/volume_id/udev_volume_id.c b/extras/volume_id/udev_volume_id.c index 18915cb62b..e88445054b 100644 --- a/extras/volume_id/udev_volume_id.c +++ b/extras/volume_id/udev_volume_id.c @@ -25,6 +25,8 @@ #include <stdlib.h> #include <unistd.h> #include <ctype.h> +#include <linux/fs.h> +#include <sys/ioctl.h> #include "../../libsysfs/sysfs/libsysfs.h" #include "../../udev_lib.h" @@ -71,6 +73,36 @@ static struct volume_id *open_classdev(struct sysfs_class_device *class_dev) return vid; } +static unsigned long long get_size(struct volume_id *vid) +{ + unsigned long long size; + + if (ioctl(vid->fd, BLKGETSIZE64, &size) != 0) + size = 0; + + return size; +} + +static char *usage_id_name(enum volume_id_usage usage) +{ + switch(usage) { + case VOLUME_ID_UNUSED: + return "unused"; + case VOLUME_ID_UNPROBED: + return "unprobed"; + case VOLUME_ID_OTHER: + return "other"; + case VOLUME_ID_PARTITIONTABLE: + return "partitiontable"; + case VOLUME_ID_FILESYSTEM: + return "filesystem"; + case VOLUME_ID_RAID: + return "raid"; + default: + return "unknown type_id"; + } +} + int main(int argc, char *argv[]) { const char help[] = "usage: udev_volume_id [-t|-l|-u|-d]\n" @@ -80,7 +112,6 @@ int main(int argc, char *argv[]) " -d disk label from main device\n" "\n"; static const char short_options[] = "htlud"; - int option; char sysfs_path[SYSFS_PATH_MAX]; char dev_path[SYSFS_PATH_MAX]; struct sysfs_class_device *class_dev = NULL; @@ -92,9 +123,12 @@ int main(int argc, char *argv[]) char dasd_label[7]; static char name[VOLUME_ID_LABEL_SIZE]; int len, i, j; + unsigned long long size; int rc = 1; while (1) { + int option; + option = getopt(argc, argv, short_options); if (option == -1) break; @@ -146,24 +180,26 @@ int main(int argc, char *argv[]) vid = open_classdev(class_dev); if (vid == NULL) goto exit; - if (volume_id_probe(vid, ALL) == 0) + + size = get_size(vid); + + if (volume_id_probe(vid, VOLUME_ID_ALL, 0, size) == 0) goto print; break; case 'd' : - /* if we are on a partition, close it and open main block device */ + /* if we are on a partition, open main block device instead */ class_dev_parent = sysfs_get_classdev_parent(class_dev); - if (class_dev_parent != NULL) { - volume_id_close(vid); + if (class_dev_parent != NULL) vid = open_classdev(class_dev_parent); - } else { + else vid = open_classdev(class_dev_parent); - } if (vid == NULL) goto exit; + if (probe_ibm_partition(vid->fd, dasd_label) == 0) { - vid->fs_name = "dasd"; - strncpy(vid->label_string, dasd_label, 6); - vid->label_string[6] = '\0'; + vid->type = "dasd"; + strncpy(vid->label, dasd_label, 6); + vid->label[6] = '\0'; goto print; } break; @@ -174,10 +210,10 @@ int main(int argc, char *argv[]) print: - len = strnlen(vid->label_string, VOLUME_ID_LABEL_SIZE); + len = strnlen(vid->label, VOLUME_ID_LABEL_SIZE); /* remove trailing spaces */ - while (len > 0 && isspace(vid->label_string[len-1])) + while (len > 0 && isspace(vid->label[len-1])) len--; name[len] = '\0'; @@ -185,14 +221,14 @@ print: i = 0; j = 0; while (j < len) { - switch(vid->label_string[j]) { + switch(vid->label[j]) { case '/' : break; case ' ' : name[i++] = '_'; break; default : - name[i++] = vid->label_string[j]; + name[i++] = vid->label[j]; } j++; } @@ -200,27 +236,29 @@ print: switch (print) { case 't': - printf("%s\n", vid->fs_name); + printf("%s\n", vid->type); break; case 'l': - if (name[0] == '\0') { + if (name[0] == '\0' || vid->usage_id != VOLUME_ID_FILESYSTEM) { rc = 2; goto exit; } printf("%s\n", name); break; case 'u': - if (vid->uuid_string[0] == '\0') { + if (vid->uuid[0] == '\0' || vid->usage_id != VOLUME_ID_FILESYSTEM) { rc = 2; goto exit; } - printf("%s\n", vid->uuid_string); + printf("%s\n", vid->uuid); break; case 'a': - printf("T:%s\n", vid->fs_name); - printf("L:%s\n", vid->label_string); + printf("F:%s\n", usage_id_name(vid->usage_id)); + printf("T:%s\n", vid->type); + printf("V:%s\n", vid->type_version); + printf("L:%s\n", vid->label); printf("N:%s\n", name); - printf("U:%s\n", vid->uuid_string); + printf("U:%s\n", vid->uuid); } rc = 0; |