aboutsummaryrefslogtreecommitdiff
path: root/archive/scsi_devfs_scan.c
diff options
context:
space:
mode:
Diffstat (limited to 'archive/scsi_devfs_scan.c')
-rw-r--r--archive/scsi_devfs_scan.c358
1 files changed, 0 insertions, 358 deletions
diff --git a/archive/scsi_devfs_scan.c b/archive/scsi_devfs_scan.c
deleted file mode 100644
index 6cd526a0..00000000
--- a/archive/scsi_devfs_scan.c
+++ /dev/null
@@ -1,358 +0,0 @@
-#define _XOPEN_SOURCE 500
-#define _GNU_SOURCE
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/sysmacros.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <dirent.h>
-#include <errno.h>
-#include <unistd.h>
-#include "sg_lib.h"
-#include "sg_io_linux.h"
-
-/* Code for scanning for SCSI devices within a Linux device pseudo file
- system.
- * Copyright (C) 2001 D. Gilbert
- * 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, or (at your option)
- * any later version.
-
- This program scans the /dev directory structure looking for the
- devfs "primary" scsi (and optionally IDE) device names.
-
- Version 0.13 20030430
-*/
-
-void usage()
-{
- printf("Usage: 'scsi_devfs_scan [-d <dir>] [-i] [-ide] [-l [-x]] "
- "[-q]'\n");
- printf(" where: -d <dir> location of devfs [default: /dev ]\n");
- printf(" -i show INQUIRY data for each SCSI device\n");
- printf(" -ide show scan of IDE devices after SCSI devices\n");
- printf(" -l show device file names in leaf directory\n");
- printf(" -q just output host, bus, target, lun numbers\n");
- printf(" -x add (major,minor) information to '-l'\n");
-}
-
-#define NAME_LEN_MAX 256
-#define LEVELS 4
-
-#define SENSE_BUFF_LEN 32 /* Arbitrary, could be larger */
-#define DEF_TIMEOUT 60000 /* 60,000 millisecs == 60 seconds */
-#define INQUIRY_CMD 0x12
-#define INQUIRY_CMDLEN 6
-
-static const char * level_arr[LEVELS] = {"host", "bus", "target", "lun"};
-
-static int do_ide = 0;
-static int do_inq = 0;
-static int do_leaf = 0;
-static int do_extra = 0;
-static int do_quiet = 0;
-static int checked_sg = 0;
-
-static void ddStrHex(const char* str, int len)
-{
- const char* p = str;
- unsigned char c;
- char buff[82];
- int a = 0;
- const int bpstart = 5;
- const int cpstart = 60;
- int cpos = cpstart;
- int bpos = bpstart;
- int i, k;
-
- if (len <= 0) return;
- memset(buff,' ',80);
- buff[80]='\0';
- k = sprintf(buff + 1, "%.2x", a);
- buff[k + 1] = ' ';
- if (bpos >= ((bpstart + (9 * 3))))
- bpos++;
-
- for(i = 0; i < len; i++)
- {
- c = *p++;
- bpos += 3;
- if (bpos == (bpstart + (9 * 3)))
- bpos++;
- sprintf(&buff[bpos], "%.2x", (int)(unsigned char)c);
- buff[bpos + 2] = ' ';
- if ((c < ' ') || (c >= 0x7f))
- c='.';
- buff[cpos++] = c;
- if (cpos > (cpstart+15))
- {
- printf("%s\n", buff);
- bpos = bpstart;
- cpos = cpstart;
- a += 16;
- memset(buff,' ',80);
- k = sprintf(buff + 1, "%.2x", a);
- buff[k + 1] = ' ';
- }
- }
- if (cpos > cpstart)
- {
- printf("%s\n", buff);
- }
-}
-
-static int do_inquiry(int sg_fd, void * resp, int mx_resp_len)
-{
- int res;
- unsigned char inqCmdBlk[INQUIRY_CMDLEN] = {INQUIRY_CMD, 0, 0, 0, 0, 0};
- unsigned char sense_b[SENSE_BUFF_LEN];
- sg_io_hdr_t io_hdr;
-
- inqCmdBlk[4] = (unsigned char)mx_resp_len;
- memset(&io_hdr, 0, sizeof(sg_io_hdr_t));
- 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_TO_FROM_DEV;
- io_hdr.dxfer_len = mx_resp_len;
- io_hdr.dxferp = resp;
- io_hdr.cmdp = inqCmdBlk;
- io_hdr.timeout = DEF_TIMEOUT;
-
- if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) {
- perror("SG_IO (inquiry) error");
- return -1;
- }
- res = sg_err_category3(&io_hdr);
- switch (res) {
- case SG_LIB_CAT_CLEAN:
- case SG_LIB_CAT_RECOVERED:
- return 0;
- default:
- sg_chk_n_print3("Failed INQUIRY", &io_hdr, 1);
- return -1;
- }
-}
-
-void leaf_dir(const char * lf, unsigned int * larr)
-{
- char name[NAME_LEN_MAX * 2];
- int res;
-
- if (do_quiet) {
- printf("%u\t%u\t%u\t%u\n", larr[0], larr[1], larr[2], larr[3]);
- return;
- }
- printf("%u\t%u\t%u\t%u\t%s\n", larr[0], larr[1], larr[2], larr[3], lf);
- if (do_leaf) {
- struct dirent * de_entry;
- struct dirent * de_result;
- DIR * sdir;
- int outpos;
-
- if (NULL == (sdir = opendir(lf))) {
- fprintf(stderr, "leaf_dir: opendir of %s: failed\n", lf);
- return;
- }
- de_entry = (struct dirent *)malloc(sizeof(struct dirent) +
- NAME_LEN_MAX);
- if (NULL == de_entry)
- return;
- res = 0;
- printf("\t");
- outpos = 8;
- while (1) {
- res = readdir_r(sdir, de_entry, &de_result);
- if (0 != res) {
- fprintf(stderr, "leaf_dir: readdir_r of %s: %s\n",
- lf, strerror(res));
- res = -2;
- break;
- }
- if (de_result == NULL)
- break;
- strncpy(name, de_entry->d_name, NAME_LEN_MAX * 2);
- if ((0 == strcmp("..", name)) ||(0 == strcmp(".", name)))
- continue;
- if (do_extra) {
- struct stat st;
- char devname[NAME_LEN_MAX * 2];
-
- strncpy(devname, lf, NAME_LEN_MAX * 2);
- strcat(devname, "/");
- strcat(devname, name);
- if (stat(devname, &st) < 0)
- return;
- if (S_ISCHR(st.st_mode)) {
- strcat(name, "(c ");
- sprintf(name + strlen(name), "%d %d)", major(st.st_rdev),
- minor(st.st_rdev));
- }
- else if (S_ISBLK(st.st_mode)) {
- strcat(name, "(b ");
- sprintf(name + strlen(name), "%d %d)", major(st.st_rdev),
- minor(st.st_rdev));
- }
- }
- res = strlen(name);
- if ((outpos + res + 2) > 80) {
- printf("\n\t");
- outpos = 8;
- }
- printf("%s ", name);
- outpos += res + 2;
- }
- printf("\n");
- }
- if (do_inq) {
- int sg_fd;
- char buff[64];
-
- memset(buff, 0, sizeof(buff));
- strncpy(name, lf, NAME_LEN_MAX * 2);
- strcat(name, "/generic");
- if ((sg_fd = open(name, O_RDONLY)) < 0) {
- if (! checked_sg) {
- checked_sg = 1;
- if ((sg_fd = open("/dev/sg0", O_RDONLY)) >= 0)
- close(sg_fd); /* try and get sg module loaded */
- sg_fd = open(name, O_RDONLY);
- }
- if (sg_fd < 0) {
- printf("Unable to open sg device: %s, %s\n", name,
- strerror(errno));
- return;
- }
- }
- if (0 != do_inquiry(sg_fd, buff, 64))
- return;
- close(sg_fd);
- ddStrHex(buff, 64);
- }
-}
-
-/* Return 0 -> ok, -1 -> opendir() error, -2 -> readdir_r error,
- -3 -> malloc error */
-int hbtl_scan(const char * path, int level, unsigned int *larr)
-{
- struct dirent * de_entry;
- struct dirent * de_result;
- char new_path[NAME_LEN_MAX * 2];
- DIR * sdir;
- int res;
- size_t level_slen;
-
- level_slen = strlen(level_arr[level]);
- if (NULL == (sdir = opendir(path))) {
- fprintf(stderr, "hbtl_scan: opendir of %s: failed\n", path);
- return -1;
- }
- de_entry = (struct dirent *)malloc(sizeof(struct dirent) + NAME_LEN_MAX);
- if (NULL == de_entry)
- return -3;
- res = 0;
- while (1) {
- res = readdir_r(sdir, de_entry, &de_result);
- if (0 != res) {
- fprintf(stderr, "hbtl_scan: readdir_r of %s: %s\n",
- path, strerror(res));
- res = -2;
- break;
- }
- if (de_result == NULL)
- break;
- if (0 == strncmp(level_arr[level], de_entry->d_name, level_slen)) {
- if (1 != sscanf(de_entry->d_name + level_slen, "%u", larr + level))
- larr[level] = UINT_MAX;
- strncpy(new_path, path, NAME_LEN_MAX * 2);
- strcat(new_path, "/");
- strcat(new_path, de_entry->d_name);
- if ((level + 1) < LEVELS) {
- res = hbtl_scan(new_path, level + 1, larr);
- if (res < 0)
- break;
- }
- else
- leaf_dir(new_path, larr);
- }
- }
- free(de_entry);
- closedir(sdir);
- return res;
-}
-
-#define D_ROOT_SZ 512
-
-
-int main(int argc, char * argv[])
-{
- int k, res;
- char ds_root[D_ROOT_SZ];
- char di_root[D_ROOT_SZ];
- unsigned int larr[LEVELS];
- struct stat st;
-
- strncpy(ds_root, "/dev", D_ROOT_SZ);
- for (k = 1; k < argc; ++k) {
- if (0 == strcmp("-ide", argv[k]))
- do_ide = 1;
- else if (0 == strcmp("-i", argv[k]))
- do_inq = 1;
- else if (0 == strcmp("-l", argv[k]))
- do_leaf = 1;
- else if (0 == strcmp("-x", argv[k]))
- do_extra = 1;
- else if (0 == strcmp("-q", argv[k]))
- do_quiet = 1;
- else if (0 == strncmp("-d", argv[k], 2)) {
- if (strlen(argv[k]) > 2)
- strncpy(ds_root, argv[k] + 2, D_ROOT_SZ);
- else if (++k < argc)
- strncpy(ds_root, argv[k], D_ROOT_SZ);
- }
- else if ((0 == strcmp("-?", argv[k])) ||
- (0 == strncmp("-h", argv[k], 2))) {
- printf("Scan SCSI devices within a devfs tree\n\n");
- usage();
- return 1;
- }
- else if (*argv[k] == '-') {
- printf("Unknown switch: %s\n", argv[k]);
- usage();
- return 1;
- }
- else if (*argv[k] != '-') {
- printf("Unknown argument\n");
- usage();
- return 1;
- }
- }
- strncpy(di_root, ds_root, D_ROOT_SZ);
- strcat(di_root, "/.devfsd");
- if (stat(di_root, &st) < 0)
- printf("Didn't find %s so perhaps devfs is not present,"
- " continuing ...\n", di_root);
- strncpy(di_root, ds_root, D_ROOT_SZ);
- strcat(ds_root, "/scsi");
- strcat(di_root, "/ide");
-
- if (do_ide)
- printf("SCSI scan:\n");
- res = hbtl_scan(ds_root, 0, larr);
- if (res < 0)
- printf("main: scsi hbtl_scan res=%d\n", res);
- do_inq = 0; /* won't try SCSI INQUIRY on IDE devices */
- if (do_ide) {
- printf("\nIDE scan:\n");
- res = hbtl_scan(di_root, 0, larr);
- if (res < 0)
- printf("main: ide hbtl_scan res=%d\n", res);
- }
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-22 08:15:08 +0000