+++ /dev/null
-/*
- * Copyright (C) IBM Corp. 2003
- * Copyright (C) SUSE Linux Products GmbH, 2006
- *
- * 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 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-#include <ctype.h>
-#include <getopt.h>
-#include <sys/stat.h>
-
-#include "libudev.h"
-#include "libudev-private.h"
-#include "scsi_id.h"
-#include "udev-util.h"
-
-static const struct option options[] = {
- { "device", required_argument, NULL, 'd' },
- { "config", required_argument, NULL, 'f' },
- { "page", required_argument, NULL, 'p' },
- { "blacklisted", no_argument, NULL, 'b' },
- { "whitelisted", no_argument, NULL, 'g' },
- { "replace-whitespace", no_argument, NULL, 'u' },
- { "sg-version", required_argument, NULL, 's' },
- { "verbose", no_argument, NULL, 'v' },
- { "version", no_argument, NULL, 'V' }, /* don't advertise -V */
- { "export", no_argument, NULL, 'x' },
- { "help", no_argument, NULL, 'h' },
- {}
-};
-
-static bool all_good = false;
-static bool dev_specified = false;
-static char config_file[MAX_PATH_LEN] = "/etc/scsi_id.config";
-static enum page_code default_page_code = PAGE_UNSPECIFIED;
-static int sg_version = 4;
-static bool reformat_serial = false;
-static bool export = false;
-static char vendor_str[64];
-static char model_str[64];
-static char vendor_enc_str[256];
-static char model_enc_str[256];
-static char revision_str[16];
-static char type_str[16];
-
-static void set_type(const char *from, char *to, size_t len)
-{
- int type_num;
- char *eptr;
- const char *type = "generic";
-
- type_num = strtoul(from, &eptr, 0);
- if (eptr != from) {
- switch (type_num) {
- case 0:
- type = "disk";
- break;
- case 1:
- type = "tape";
- break;
- case 4:
- type = "optical";
- break;
- case 5:
- type = "cd";
- break;
- case 7:
- type = "optical";
- break;
- case 0xe:
- type = "disk";
- break;
- case 0xf:
- type = "optical";
- break;
- default:
- break;
- }
- }
- strscpy(to, len, type);
-}
-
-/*
- * get_value:
- *
- * buf points to an '=' followed by a quoted string ("foo") or a string ending
- * with a space or ','.
- *
- * Return a pointer to the NUL terminated string, returns NULL if no
- * matches.
- */
-static char *get_value(char **buffer)
-{
- static const char *quote_string = "\"\n";
- static const char *comma_string = ",\n";
- char *val;
- const char *end;
-
- if (**buffer == '"') {
- /*
- * skip leading quote, terminate when quote seen
- */
- (*buffer)++;
- end = quote_string;
- } else {
- end = comma_string;
- }
- val = strsep(buffer, end);
- if (val && end == quote_string)
- /*
- * skip trailing quote
- */
- (*buffer)++;
-
- while (isspace(**buffer))
- (*buffer)++;
-
- return val;
-}
-
-static int argc_count(char *opts)
-{
- int i = 0;
- while (*opts != '\0')
- if (*opts++ == ' ')
- i++;
- return i;
-}
-
-/*
- * get_file_options:
- *
- * If vendor == NULL, find a line in the config file with only "OPTIONS=";
- * if vendor and model are set find the first OPTIONS line in the config
- * file that matches. Set argc and argv to match the OPTIONS string.
- *
- * vendor and model can end in '\n'.
- */
-static int get_file_options(struct udev *udev,
- const char *vendor, const char *model,
- int *argc, char ***newargv)
-{
- char *buffer;
- _cleanup_fclose_ FILE *f;
- char *buf;
- char *str1;
- char *vendor_in, *model_in, *options_in; /* read in from file */
- int lineno;
- int c;
- int retval = 0;
-
- f = fopen(config_file, "re");
- if (f == NULL) {
- if (errno == ENOENT)
- return 1;
- else {
- log_error_errno(errno, "can't open %s: %m", config_file);
- return -1;
- }
- }
-
- /*
- * Allocate a buffer rather than put it on the stack so we can
- * keep it around to parse any options (any allocated newargv
- * points into this buffer for its strings).
- */
- buffer = malloc(MAX_BUFFER_LEN);
- if (!buffer)
- return log_oom();
-
- *newargv = NULL;
- lineno = 0;
- while (1) {
- vendor_in = model_in = options_in = NULL;
-
- buf = fgets(buffer, MAX_BUFFER_LEN, f);
- if (buf == NULL)
- break;
- lineno++;
- if (buf[strlen(buffer) - 1] != '\n') {
- log_error("Config file line %d too long", lineno);
- break;
- }
-
- while (isspace(*buf))
- buf++;
-
- /* blank or all whitespace line */
- if (*buf == '\0')
- continue;
-
- /* comment line */
- if (*buf == '#')
- continue;
-
- str1 = strsep(&buf, "=");
- if (str1 && strcaseeq(str1, "VENDOR")) {
- str1 = get_value(&buf);
- if (!str1) {
- retval = log_oom();
- break;
- }
- vendor_in = str1;
-
- str1 = strsep(&buf, "=");
- if (str1 && strcaseeq(str1, "MODEL")) {
- str1 = get_value(&buf);
- if (!str1) {
- retval = log_oom();
- break;
- }
- model_in = str1;
- str1 = strsep(&buf, "=");
- }
- }
-
- if (str1 && strcaseeq(str1, "OPTIONS")) {
- str1 = get_value(&buf);
- if (!str1) {
- retval = log_oom();
- break;
- }
- options_in = str1;
- }
-
- /*
- * Only allow: [vendor=foo[,model=bar]]options=stuff
- */
- if (!options_in || (!vendor_in && model_in)) {
- log_error("Error parsing config file line %d '%s'", lineno, buffer);
- retval = -1;
- break;
- }
- if (vendor == NULL) {
- if (vendor_in == NULL)
- break;
- } else if (vendor_in &&
- strneq(vendor, vendor_in, strlen(vendor_in)) &&
- (!model_in ||
- (strneq(model, model_in, strlen(model_in))))) {
- /*
- * Matched vendor and optionally model.
- *
- * Note: a short vendor_in or model_in can
- * give a partial match (that is FOO
- * matches FOOBAR).
- */
- break;
- }
- }
-
- if (retval == 0) {
- if (vendor_in != NULL || model_in != NULL ||
- options_in != NULL) {
- /*
- * Something matched. Allocate newargv, and store
- * values found in options_in.
- */
- strcpy(buffer, options_in);
- c = argc_count(buffer) + 2;
- *newargv = calloc(c, sizeof(**newargv));
- if (!*newargv) {
- retval = log_oom();
- } else {
- *argc = c;
- c = 0;
- /*
- * argv[0] at 0 is skipped by getopt, but
- * store the buffer address there for
- * later freeing
- */
- (*newargv)[c] = buffer;
- for (c = 1; c < *argc; c++)
- (*newargv)[c] = strsep(&buffer, " \t");
- }
- } else {
- /* No matches */
- retval = 1;
- }
- }
- if (retval != 0)
- free(buffer);
- return retval;
-}
-
-static void help(void) {
- printf("Usage: %s [OPTION...] DEVICE\n\n"
- "SCSI device identification.\n\n"
- " -h --help Print this message\n"
- " --version Print version of the program\n\n"
- " -d --device= Device node for SG_IO commands\n"
- " -f --config= Location of config file\n"
- " -p --page=0x80|0x83|pre-spc3-83 SCSI page (0x80, 0x83, pre-spc3-83)\n"
- " -s --sg-version=3|4 Use SGv3 or SGv4\n"
- " -b --blacklisted Treat device as blacklisted\n"
- " -g --whitelisted Treat device as whitelisted\n"
- " -u --replace-whitespace Replace all whitespace by underscores\n"
- " -v --verbose Verbose logging\n"
- " -x --export Print values as environment keys\n"
- , program_invocation_short_name);
-
-}
-
-static int set_options(struct udev *udev,
- int argc, char **argv,
- char *maj_min_dev)
-{
- int option;
-
- /*
- * optind is a global extern used by getopt. Since we can call
- * set_options twice (once for command line, and once for config
- * file) we have to reset this back to 1.
- */
- optind = 1;
- while ((option = getopt_long(argc, argv, "d:f:gp:uvVxh", options, NULL)) >= 0)
- switch (option) {
- case 'b':
- all_good = false;
- break;
-
- case 'd':
- dev_specified = true;
- strscpy(maj_min_dev, MAX_PATH_LEN, optarg);
- break;
-
- case 'f':
- strscpy(config_file, MAX_PATH_LEN, optarg);
- break;
-
- case 'g':
- all_good = true;
- break;
-
- case 'h':
- help();
- exit(0);
-
- case 'p':
- if (streq(optarg, "0x80"))
- default_page_code = PAGE_80;
- else if (streq(optarg, "0x83"))
- default_page_code = PAGE_83;
- else if (streq(optarg, "pre-spc3-83"))
- default_page_code = PAGE_83_PRE_SPC3;
- else {
- log_error("Unknown page code '%s'", optarg);
- return -1;
- }
- break;
-
- case 's':
- sg_version = atoi(optarg);
- if (sg_version < 3 || sg_version > 4) {
- log_error("Unknown SG version '%s'", optarg);
- return -1;
- }
- break;
-
- case 'u':
- reformat_serial = true;
- break;
-
- case 'v':
- log_set_target(LOG_TARGET_CONSOLE);
- log_set_max_level(LOG_DEBUG);
- log_open();
- break;
-
- case 'V':
- printf("%s\n", VERSION);
- exit(0);
-
- case 'x':
- export = true;
- break;
-
- case '?':
- return -1;
-
- default:
- assert_not_reached("Unknown option");
- }
-
- if (optind < argc && !dev_specified) {
- dev_specified = true;
- strscpy(maj_min_dev, MAX_PATH_LEN, argv[optind]);
- }
-
- return 0;
-}
-
-static int per_dev_options(struct udev *udev,
- struct scsi_id_device *dev_scsi, int *good_bad, int *page_code)
-{
- int retval;
- int newargc;
- char **newargv = NULL;
- int option;
-
- *good_bad = all_good;
- *page_code = default_page_code;
-
- retval = get_file_options(udev, vendor_str, model_str, &newargc, &newargv);
-
- optind = 1; /* reset this global extern */
- while (retval == 0) {
- option = getopt_long(newargc, newargv, "bgp:", options, NULL);
- if (option == -1)
- break;
-
- switch (option) {
- case 'b':
- *good_bad = 0;
- break;
-
- case 'g':
- *good_bad = 1;
- break;
-
- case 'p':
- if (streq(optarg, "0x80")) {
- *page_code = PAGE_80;
- } else if (streq(optarg, "0x83")) {
- *page_code = PAGE_83;
- } else if (streq(optarg, "pre-spc3-83")) {
- *page_code = PAGE_83_PRE_SPC3;
- } else {
- log_error("Unknown page code '%s'", optarg);
- retval = -1;
- }
- break;
-
- default:
- log_error("Unknown or bad option '%c' (0x%x)", option, option);
- retval = -1;
- break;
- }
- }
-
- if (newargv) {
- free(newargv[0]);
- free(newargv);
- }
- return retval;
-}
-
-static int set_inq_values(struct udev *udev, struct scsi_id_device *dev_scsi, const char *path)
-{
- int retval;
-
- dev_scsi->use_sg = sg_version;
-
- retval = scsi_std_inquiry(udev, dev_scsi, path);
- if (retval)
- return retval;
-
- udev_util_encode_string(dev_scsi->vendor, vendor_enc_str, sizeof(vendor_enc_str));
- udev_util_encode_string(dev_scsi->model, model_enc_str, sizeof(model_enc_str));
-
- util_replace_whitespace(dev_scsi->vendor, vendor_str, sizeof(vendor_str));
- util_replace_chars(vendor_str, NULL);
- util_replace_whitespace(dev_scsi->model, model_str, sizeof(model_str));
- util_replace_chars(model_str, NULL);
- set_type(dev_scsi->type, type_str, sizeof(type_str));
- util_replace_whitespace(dev_scsi->revision, revision_str, sizeof(revision_str));
- util_replace_chars(revision_str, NULL);
- return 0;
-}
-
-/*
- * scsi_id: try to get an id, if one is found, printf it to stdout.
- * returns a value passed to exit() - 0 if printed an id, else 1.
- */
-static int scsi_id(struct udev *udev, char *maj_min_dev)
-{
- struct scsi_id_device dev_scsi = {};
- int good_dev;
- int page_code;
- int retval = 0;
-
- if (set_inq_values(udev, &dev_scsi, maj_min_dev) < 0) {
- retval = 1;
- goto out;
- }
-
- /* get per device (vendor + model) options from the config file */
- per_dev_options(udev, &dev_scsi, &good_dev, &page_code);
- if (!good_dev) {
- retval = 1;
- goto out;
- }
-
- /* read serial number from mode pages (no values for optical drives) */
- scsi_get_serial(udev, &dev_scsi, maj_min_dev, page_code, MAX_SERIAL_LEN);
-
- if (export) {
- char serial_str[MAX_SERIAL_LEN];
-
- printf("ID_SCSI=1\n");
- printf("ID_VENDOR=%s\n", vendor_str);
- printf("ID_VENDOR_ENC=%s\n", vendor_enc_str);
- printf("ID_MODEL=%s\n", model_str);
- printf("ID_MODEL_ENC=%s\n", model_enc_str);
- printf("ID_REVISION=%s\n", revision_str);
- printf("ID_TYPE=%s\n", type_str);
- if (dev_scsi.serial[0] != '\0') {
- util_replace_whitespace(dev_scsi.serial, serial_str, sizeof(serial_str));
- util_replace_chars(serial_str, NULL);
- printf("ID_SERIAL=%s\n", serial_str);
- util_replace_whitespace(dev_scsi.serial_short, serial_str, sizeof(serial_str));
- util_replace_chars(serial_str, NULL);
- printf("ID_SERIAL_SHORT=%s\n", serial_str);
- }
- if (dev_scsi.wwn[0] != '\0') {
- printf("ID_WWN=0x%s\n", dev_scsi.wwn);
- if (dev_scsi.wwn_vendor_extension[0] != '\0') {
- printf("ID_WWN_VENDOR_EXTENSION=0x%s\n", dev_scsi.wwn_vendor_extension);
- printf("ID_WWN_WITH_EXTENSION=0x%s%s\n", dev_scsi.wwn, dev_scsi.wwn_vendor_extension);
- } else {
- printf("ID_WWN_WITH_EXTENSION=0x%s\n", dev_scsi.wwn);
- }
- }
- if (dev_scsi.tgpt_group[0] != '\0') {
- printf("ID_TARGET_PORT=%s\n", dev_scsi.tgpt_group);
- }
- if (dev_scsi.unit_serial_number[0] != '\0') {
- printf("ID_SCSI_SERIAL=%s\n", dev_scsi.unit_serial_number);
- }
- goto out;
- }
-
- if (dev_scsi.serial[0] == '\0') {
- retval = 1;
- goto out;
- }
-
- if (reformat_serial) {
- char serial_str[MAX_SERIAL_LEN];
-
- util_replace_whitespace(dev_scsi.serial, serial_str, sizeof(serial_str));
- util_replace_chars(serial_str, NULL);
- printf("%s\n", serial_str);
- goto out;
- }
-
- printf("%s\n", dev_scsi.serial);
-out:
- return retval;
-}
-
-int main(int argc, char **argv)
-{
- _cleanup_udev_unref_ struct udev *udev;
- int retval = 0;
- char maj_min_dev[MAX_PATH_LEN];
- int newargc;
- char **newargv = NULL;
-
- log_parse_environment();
- log_open();
-
- udev = udev_new();
- if (udev == NULL)
- goto exit;
-
- /*
- * Get config file options.
- */
- retval = get_file_options(udev, NULL, NULL, &newargc, &newargv);
- if (retval < 0) {
- retval = 1;
- goto exit;
- }
- if (retval == 0) {
- assert(newargv);
-
- if (set_options(udev, newargc, newargv, maj_min_dev) < 0) {
- retval = 2;
- goto exit;
- }
- }
-
- /*
- * Get command line options (overriding any config file settings).
- */
- if (set_options(udev, argc, argv, maj_min_dev) < 0)
- exit(1);
-
- if (!dev_specified) {
- log_error("No device specified.");
- retval = 1;
- goto exit;
- }
-
- retval = scsi_id(udev, maj_min_dev);
-
-exit:
- if (newargv) {
- free(newargv[0]);
- free(newargv);
- }
- log_close();
- return retval;
-}
~ianmdlvl / elogind.git / blobdiff