move imported udev into place

1 files changed, 657 insertions, 0 deletions

diff --git a/src/udev/scsi_id/scsi_id.c b/src/udev/scsi_id/scsi_id.c
new file mode 100644
index 0000000000..9bb0d7f538
--- /dev/null
+++ b/src/udev/scsi_id/scsi_id.c
@@ -0,0 +1,657 @@
+/*
+ * 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 <unistd.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <syslog.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <getopt.h>
+#include <sys/stat.h>
+
+#include "libudev.h"
+#include "libudev-private.h"
+#include "scsi_id.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' },
+        { "export", no_argument, NULL, 'x' },
+        { "help", no_argument, NULL, 'h' },
+        {}
+};
+
+static const char short_options[] = "d:f:ghip:uvVx";
+static const char dev_short_options[] = "bgp:";
+
+static int all_good;
+static int dev_specified;
+static char config_file[MAX_PATH_LEN] = SYSCONFDIR "/scsi_id.config";
+static enum page_code default_page_code;
+static int sg_version = 4;
+static int use_stderr;
+static int debug;
+static int reformat_serial;
+static int export;
+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 log_fn(struct udev *udev, int priority,
+                   const char *file, int line, const char *fn,
+                   const char *format, va_list args)
+{
+        vsyslog(priority, format, args);
+}
+
+static void set_type(const char *from, char *to, size_t len)
+{
+        int type_num;
+        char *eptr;
+        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;
+                }
+        }
+        util_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 char *quote_string = "\"\n";
+        static char *comma_string = ",\n";
+        char *val;
+        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;
+        FILE *fd;
+        char *buf;
+        char *str1;
+        char *vendor_in, *model_in, *options_in; /* read in from file */
+        int lineno;
+        int c;
+        int retval = 0;
+
+        dbg(udev, "vendor='%s'; model='%s'\n", vendor, model);
+        fd = fopen(config_file, "r");
+        if (fd == NULL) {
+                dbg(udev, "can't open %s\n", config_file);
+                if (errno == ENOENT) {
+                        return 1;
+                } else {
+                        err(udev, "can't open %s: %s\n", config_file, strerror(errno));
+                        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) {
+                fclose(fd);
+                err(udev, "can't allocate memory\n");
+                return -1;
+        }
+
+        *newargv = NULL;
+        lineno = 0;
+        while (1) {
+                vendor_in = model_in = options_in = NULL;
+
+                buf = fgets(buffer, MAX_BUFFER_LEN, fd);
+                if (buf == NULL)
+                        break;
+                lineno++;
+                if (buf[strlen(buffer) - 1] != '\n') {
+                        err(udev, "Config file line %d too long\n", lineno);
+                        break;
+                }
+
+                while (isspace(*buf))
+                        buf++;
+
+                /* blank or all whitespace line */
+                if (*buf == '\0')
+                        continue;
+
+                /* comment line */
+                if (*buf == '#')
+                        continue;
+
+                dbg(udev, "lineno %d: '%s'\n", lineno, buf);
+                str1 = strsep(&buf, "=");
+                if (str1 && strcasecmp(str1, "VENDOR") == 0) {
+                        str1 = get_value(&buf);
+                        if (!str1) {
+                                retval = -1;
+                                break;
+                        }
+                        vendor_in = str1;
+
+                        str1 = strsep(&buf, "=");
+                        if (str1 && strcasecmp(str1, "MODEL") == 0) {
+                                str1 = get_value(&buf);
+                                if (!str1) {
+                                        retval = -1;
+                                        break;
+                                }
+                                model_in = str1;
+                                str1 = strsep(&buf, "=");
+                        }
+                }
+
+                if (str1 && strcasecmp(str1, "OPTIONS") == 0) {
+                        str1 = get_value(&buf);
+                        if (!str1) {
+                                retval = -1;
+                                break;
+                        }
+                        options_in = str1;
+                }
+                dbg(udev, "config file line %d:\n"
+                        " vendor '%s'; model '%s'; options '%s'\n",
+                        lineno, vendor_in, model_in, options_in);
+                /*
+                 * Only allow: [vendor=foo[,model=bar]]options=stuff
+                 */
+                if (!options_in || (!vendor_in && model_in)) {
+                        err(udev, "Error parsing config file line %d '%s'\n", lineno, buffer);
+                        retval = -1;
+                        break;
+                }
+                if (vendor == NULL) {
+                        if (vendor_in == NULL) {
+                                dbg(udev, "matched global option\n");
+                                break;
+                        }
+                } else if ((vendor_in && strncmp(vendor, vendor_in,
+                                                 strlen(vendor_in)) == 0) &&
+                           (!model_in || (strncmp(model, model_in,
+                                                  strlen(model_in)) == 0))) {
+                                /*
+                                 * Matched vendor and optionally model.
+                                 *
+                                 * Note: a short vendor_in or model_in can
+                                 * give a partial match (that is FOO
+                                 * matches FOOBAR).
+                                 */
+                                dbg(udev, "matched vendor/model\n");
+                                break;
+                } else {
+                        dbg(udev, "no match\n");
+                }
+        }
+
+        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) {
+                                err(udev, "can't allocate memory\n");
+                                retval = -1;
+                        } 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);
+        fclose(fd);
+        return retval;
+}
+
+static int set_options(struct udev *udev,
+                       int argc, char **argv, const char *short_opts,
+                       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 (1) {
+                option = getopt_long(argc, argv, short_opts, options, NULL);
+                if (option == -1)
+                        break;
+
+                if (optarg)
+                        dbg(udev, "option '%c' arg '%s'\n", option, optarg);
+                else
+                        dbg(udev, "option '%c'\n", option);
+
+                switch (option) {
+                case 'b':
+                        all_good = 0;
+                        break;
+
+                case 'd':
+                        dev_specified = 1;
+                        util_strscpy(maj_min_dev, MAX_PATH_LEN, optarg);
+                        break;
+
+                case 'e':
+                        use_stderr = 1;
+                        break;
+
+                case 'f':
+                        util_strscpy(config_file, MAX_PATH_LEN, optarg);
+                        break;
+
+                case 'g':
+                        all_good = 1;
+                        break;
+
+                case 'h':
+                        printf("Usage: scsi_id OPTIONS <device>\n"
+                               "  --device=                     device node for SG_IO commands\n"
+                               "  --config=                     location of config file\n"
+                               "  --page=0x80|0x83|pre-spc3-83  SCSI page (0x80, 0x83, pre-spc3-83)\n"
+                               "  --sg-version=3|4              use SGv3 or SGv4\n"
+                               "  --blacklisted                 threat device as blacklisted\n"
+                               "  --whitelisted                 threat device as whitelisted\n"
+                               "  --replace-whitespace          replace all whitespaces by underscores\n"
+                               "  --verbose                     verbose logging\n"
+                               "  --version                     print version\n"
+                               "  --export                      print values as environment keys\n"
+                               "  --help                        print this help text\n\n");
+                        exit(0);
+
+                case 'p':
+                        if (strcmp(optarg, "0x80") == 0) {
+                                default_page_code = PAGE_80;
+                        } else if (strcmp(optarg, "0x83") == 0) {
+                                default_page_code = PAGE_83;
+                        } else if (strcmp(optarg, "pre-spc3-83") == 0) {
+                                default_page_code = PAGE_83_PRE_SPC3;
+                        } else {
+                                err(udev, "Unknown page code '%s'\n", optarg);
+                                return -1;
+                        }
+                        break;
+
+                case 's':
+                        sg_version = atoi(optarg);
+                        if (sg_version < 3 || sg_version > 4) {
+                                err(udev, "Unknown SG version '%s'\n", optarg);
+                                return -1;
+                        }
+                        break;
+
+                case 'u':
+                        reformat_serial = 1;
+                        break;
+
+                case 'x':
+                        export = 1;
+                        break;
+
+                case 'v':
+                        debug++;
+                        break;
+
+                case 'V':
+                        printf("%s\n", VERSION);
+                        exit(0);
+                        break;
+
+                default:
+                        exit(1);
+                }
+        }
+        if (optind < argc && !dev_specified) {
+                dev_specified = 1;
+                util_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, dev_short_options, options, NULL);
+                if (option == -1)
+                        break;
+
+                if (optarg)
+                        dbg(udev, "option '%c' arg '%s'\n", option, optarg);
+                else
+                        dbg(udev, "option '%c'\n", option);
+
+                switch (option) {
+                case 'b':
+                        *good_bad = 0;
+                        break;
+
+                case 'g':
+                        *good_bad = 1;
+                        break;
+
+                case 'p':
+                        if (strcmp(optarg, "0x80") == 0) {
+                                *page_code = PAGE_80;
+                        } else if (strcmp(optarg, "0x83") == 0) {
+                                *page_code = PAGE_83;
+                        } else if (strcmp(optarg, "pre-spc3-83") == 0) {
+                                *page_code = PAGE_83_PRE_SPC3;
+                        } else {
+                                err(udev, "Unknown page code '%s'\n", optarg);
+                                retval = -1;
+                        }
+                        break;
+
+                default:
+                        err(udev, "Unknown or bad option '%c' (0x%x)\n", 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;
+
+        memset(&dev_scsi, 0x00, sizeof(struct scsi_id_device));
+
+        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);
+        dbg(udev, "per dev options: good %d; page code 0x%x\n", 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)
+{
+        struct udev *udev;
+        int retval = 0;
+        char maj_min_dev[MAX_PATH_LEN];
+        int newargc;
+        char **newargv;
+
+        udev = udev_new();
+        if (udev == NULL)
+                goto exit;
+
+        udev_log_init("scsi_id");
+        udev_set_log_fn(udev, log_fn);
+
+        /*
+         * Get config file options.
+         */
+        newargv = NULL;
+        retval = get_file_options(udev, NULL, NULL, &newargc, &newargv);
+        if (retval < 0) {
+                retval = 1;
+                goto exit;
+        }
+        if (newargv && (retval == 0)) {
+                if (set_options(udev, newargc, newargv, short_options, maj_min_dev) < 0) {
+                        retval = 2;
+                        goto exit;
+                }
+                free(newargv);
+        }
+
+        /*
+         * Get command line options (overriding any config file settings).
+         */
+        if (set_options(udev, argc, argv, short_options, maj_min_dev) < 0)
+                exit(1);
+
+        if (!dev_specified) {
+                err(udev, "no device specified\n");
+                retval = 1;
+                goto exit;
+        }
+
+        retval = scsi_id(udev, maj_min_dev);
+
+exit:
+        udev_unref(udev);
+        udev_log_close();
+        return retval;
+}