diff options
Diffstat (limited to 'extras/multipath/devinfo.c')
| -rw-r--r-- | extras/multipath/devinfo.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/extras/multipath/devinfo.c b/extras/multipath/devinfo.c deleted file mode 100644 index 323da2f2f0..0000000000 --- a/extras/multipath/devinfo.c +++ /dev/null @@ -1,204 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <fcntl.h> -#include <sys/ioctl.h> -#include <sysfs/libsysfs.h> -#include "devinfo.h" -#include "sg_include.h" - -#define FILE_NAME_SIZE 255 - -void -basename(char * str1, char * str2) -{ - char *p = str1 + (strlen(str1) - 1); - - while (*--p != '/') - continue; - strcpy(str2, ++p); -} - -static int -do_inq(int sg_fd, int cmddt, int evpd, unsigned int pg_op, - void *resp, int mx_resp_len, int noisy) -{ - unsigned char inqCmdBlk[INQUIRY_CMDLEN] = - { INQUIRY_CMD, 0, 0, 0, 0, 0 }; - unsigned char sense_b[SENSE_BUFF_LEN]; - struct sg_io_hdr io_hdr; - - if (cmddt) - inqCmdBlk[1] |= 2; - if (evpd) - inqCmdBlk[1] |= 1; - inqCmdBlk[2] = (unsigned char) pg_op; - inqCmdBlk[4] = (unsigned char) mx_resp_len; - memset(&io_hdr, 0, sizeof (struct sg_io_hdr)); - io_hdr.interface_id = 'S'; - io_hdr.cmd_len = sizeof (inqCmdBlk); - io_hdr.mx_sb_len = sizeof (sense_b); - io_hdr.dxfer_direction = SG_DXFER_FROM_DEV; - io_hdr.dxfer_len = mx_resp_len; - io_hdr.dxferp = resp; - io_hdr.cmdp = inqCmdBlk; - io_hdr.sbp = sense_b; - io_hdr.timeout = DEF_TIMEOUT; - - if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) { - perror("SG_IO (inquiry) error"); - return -1; - } - - /* treat SG_ERR here to get rid of sg_err.[ch] */ - io_hdr.status &= 0x7e; - if ((0 == io_hdr.status) && (0 == io_hdr.host_status) && - (0 == io_hdr.driver_status)) - return 0; - if ((SCSI_CHECK_CONDITION == io_hdr.status) || - (SCSI_COMMAND_TERMINATED == io_hdr.status) || - (SG_ERR_DRIVER_SENSE == (0xf & io_hdr.driver_status))) { - if (io_hdr.sbp && (io_hdr.sb_len_wr > 2)) { - int sense_key; - unsigned char * sense_buffer = io_hdr.sbp; - if (sense_buffer[0] & 0x2) - sense_key = sense_buffer[1] & 0xf; - else - sense_key = sense_buffer[2] & 0xf; - if(RECOVERED_ERROR == sense_key) - return 0; - } - } - return -1; -} - -int -get_serial (char * str, char * devname) -{ - int fd; - int len; - char buff[MX_ALLOC_LEN + 1]; - - if ((fd = open(devname, O_RDONLY)) < 0) - return 0; - - if (0 == do_inq(fd, 0, 1, 0x80, buff, MX_ALLOC_LEN, 0)) { - len = buff[3]; - if (len > 0) { - memcpy(str, buff + 4, len); - buff[len] = '\0'; - } - close(fd); - return 1; - } - close(fd); - return 0; -} - -int -get_lun_strings(char * vendor_id, char * product_id, char * rev, char * devname) -{ - int fd; - char buff[36]; - char attr_path[FILE_NAME_SIZE]; - char sysfs_path[FILE_NAME_SIZE]; - char basedev[FILE_NAME_SIZE]; - - if (0 == sysfs_get_mnt_path(sysfs_path, FILE_NAME_SIZE)) { - /* sysfs style */ - basename(devname, basedev); - - sprintf(attr_path, "%s/block/%s/device/vendor", - sysfs_path, basedev); - if (0 > sysfs_read_attribute_value(attr_path, - vendor_id, 8)) return 0; - - sprintf(attr_path, "%s/block/%s/device/model", - sysfs_path, basedev); - if (0 > sysfs_read_attribute_value(attr_path, - product_id, 16)) return 0; - - sprintf(attr_path, "%s/block/%s/device/rev", - sysfs_path, basedev); - if (0 > sysfs_read_attribute_value(attr_path, - rev, 4)) return 0; - } else { - /* ioctl style */ - if ((fd = open(devname, O_RDONLY)) < 0) - return 0; - if (0 != do_inq(fd, 0, 0, 0, buff, 36, 1)) - return 0; - memcpy(vendor_id, &buff[8], 8); - memcpy(product_id, &buff[16], 16); - memcpy(rev, &buff[32], 4); - close(fd); - return 1; - } - return 0; -} - -static void -sprint_wwid(char * buff, const char * str) -{ - int i; - const char *p; - char *cursor; - unsigned char c; - - p = str; - cursor = buff; - for (i = 0; i <= WWID_SIZE / 2 - 1; i++) { - c = *p++; - sprintf(cursor, "%.2x", (int) (unsigned char) c); - cursor += 2; - } - buff[WWID_SIZE - 1] = '\0'; -} - -/* get EVPD page 0x83 off 8 */ -/* tested ok with StorageWorks */ -int -get_evpd_wwid(char * devname, char * wwid) -{ - int fd; - char buff[64]; - - if ((fd = open(devname, O_RDONLY)) < 0) - return 0; - - if (0 == do_inq(fd, 0, 1, 0x83, buff, sizeof (buff), 1)) { - sprint_wwid(wwid, &buff[8]); - close(fd); - return 1; /* success */ - } - close(fd); - return 0; /* not good */ -} - -long -get_disk_size (char * devname) { - long size; - int fd; - char attr_path[FILE_NAME_SIZE]; - char sysfs_path[FILE_NAME_SIZE]; - char buff[FILE_NAME_SIZE]; - char basedev[FILE_NAME_SIZE]; - - if (0 == sysfs_get_mnt_path(sysfs_path, FILE_NAME_SIZE)) { - basename(devname, basedev); - sprintf(attr_path, "%s/block/%s/size", - sysfs_path, basedev); - if (0 > sysfs_read_attribute_value(attr_path, buff, - FILE_NAME_SIZE * sizeof(char))) - return -1; - size = atoi(buff); - return size; - } else { - if ((fd = open(devname, O_RDONLY)) < 0) - return -1; - if(!ioctl(fd, BLKGETSIZE, &size)) - return size; - } - return -1; -} - |