| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Lennart Poettering | 930 | 79.28% | 1 | 7.14% |
| Jean Delvare | 134 | 11.42% | 4 | 28.57% |
| Kay Sievers | 64 | 5.46% | 2 | 14.29% |
| Simon Glass | 16 | 1.36% | 1 | 7.14% |
| Mika Westerberg | 15 | 1.28% | 1 | 7.14% |
| Axel Lin | 5 | 0.43% | 1 | 7.14% |
| Allen Hung | 3 | 0.26% | 1 | 7.14% |
| Tejun Heo | 3 | 0.26% | 1 | 7.14% |
| Thomas Gleixner | 2 | 0.17% | 1 | 7.14% |
| David Brownell | 1 | 0.09% | 1 | 7.14% |
| Total | 1173 | 14 |
// SPDX-License-Identifier: GPL-2.0-only /* * Export SMBIOS/DMI info via sysfs to userspace * * Copyright 2007, Lennart Poettering */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/dmi.h> #include <linux/device.h> #include <linux/slab.h> struct dmi_device_attribute{ struct device_attribute dev_attr; int field; }; #define to_dmi_dev_attr(_dev_attr) \ container_of(_dev_attr, struct dmi_device_attribute, dev_attr) static ssize_t sys_dmi_field_show(struct device *dev, struct device_attribute *attr, char *page) { int field = to_dmi_dev_attr(attr)->field; ssize_t len; len = scnprintf(page, PAGE_SIZE, "%s\n", dmi_get_system_info(field)); page[len-1] = '\n'; return len; } #define DMI_ATTR(_name, _mode, _show, _field) \ { .dev_attr = __ATTR(_name, _mode, _show, NULL), \ .field = _field } #define DEFINE_DMI_ATTR_WITH_SHOW(_name, _mode, _field) \ static struct dmi_device_attribute sys_dmi_##_name##_attr = \ DMI_ATTR(_name, _mode, sys_dmi_field_show, _field); DEFINE_DMI_ATTR_WITH_SHOW(bios_vendor, 0444, DMI_BIOS_VENDOR); DEFINE_DMI_ATTR_WITH_SHOW(bios_version, 0444, DMI_BIOS_VERSION); DEFINE_DMI_ATTR_WITH_SHOW(bios_date, 0444, DMI_BIOS_DATE); DEFINE_DMI_ATTR_WITH_SHOW(sys_vendor, 0444, DMI_SYS_VENDOR); DEFINE_DMI_ATTR_WITH_SHOW(product_name, 0444, DMI_PRODUCT_NAME); DEFINE_DMI_ATTR_WITH_SHOW(product_version, 0444, DMI_PRODUCT_VERSION); DEFINE_DMI_ATTR_WITH_SHOW(product_serial, 0400, DMI_PRODUCT_SERIAL); DEFINE_DMI_ATTR_WITH_SHOW(product_uuid, 0400, DMI_PRODUCT_UUID); DEFINE_DMI_ATTR_WITH_SHOW(product_sku, 0444, DMI_PRODUCT_SKU); DEFINE_DMI_ATTR_WITH_SHOW(product_family, 0444, DMI_PRODUCT_FAMILY); DEFINE_DMI_ATTR_WITH_SHOW(board_vendor, 0444, DMI_BOARD_VENDOR); DEFINE_DMI_ATTR_WITH_SHOW(board_name, 0444, DMI_BOARD_NAME); DEFINE_DMI_ATTR_WITH_SHOW(board_version, 0444, DMI_BOARD_VERSION); DEFINE_DMI_ATTR_WITH_SHOW(board_serial, 0400, DMI_BOARD_SERIAL); DEFINE_DMI_ATTR_WITH_SHOW(board_asset_tag, 0444, DMI_BOARD_ASSET_TAG); DEFINE_DMI_ATTR_WITH_SHOW(chassis_vendor, 0444, DMI_CHASSIS_VENDOR); DEFINE_DMI_ATTR_WITH_SHOW(chassis_type, 0444, DMI_CHASSIS_TYPE); DEFINE_DMI_ATTR_WITH_SHOW(chassis_version, 0444, DMI_CHASSIS_VERSION); DEFINE_DMI_ATTR_WITH_SHOW(chassis_serial, 0400, DMI_CHASSIS_SERIAL); DEFINE_DMI_ATTR_WITH_SHOW(chassis_asset_tag, 0444, DMI_CHASSIS_ASSET_TAG); static void ascii_filter(char *d, const char *s) { /* Filter out characters we don't want to see in the modalias string */ for (; *s; s++) if (*s > ' ' && *s < 127 && *s != ':') *(d++) = *s; *d = 0; } static ssize_t get_modalias(char *buffer, size_t buffer_size) { static const struct mafield { const char *prefix; int field; } fields[] = { { "bvn", DMI_BIOS_VENDOR }, { "bvr", DMI_BIOS_VERSION }, { "bd", DMI_BIOS_DATE }, { "svn", DMI_SYS_VENDOR }, { "pn", DMI_PRODUCT_NAME }, { "pvr", DMI_PRODUCT_VERSION }, { "rvn", DMI_BOARD_VENDOR }, { "rn", DMI_BOARD_NAME }, { "rvr", DMI_BOARD_VERSION }, { "cvn", DMI_CHASSIS_VENDOR }, { "ct", DMI_CHASSIS_TYPE }, { "cvr", DMI_CHASSIS_VERSION }, { NULL, DMI_NONE } }; ssize_t l, left; char *p; const struct mafield *f; strcpy(buffer, "dmi"); p = buffer + 3; left = buffer_size - 4; for (f = fields; f->prefix && left > 0; f++) { const char *c; char *t; c = dmi_get_system_info(f->field); if (!c) continue; t = kmalloc(strlen(c) + 1, GFP_KERNEL); if (!t) break; ascii_filter(t, c); l = scnprintf(p, left, ":%s%s", f->prefix, t); kfree(t); p += l; left -= l; } p[0] = ':'; p[1] = 0; return p - buffer + 1; } static ssize_t sys_dmi_modalias_show(struct device *dev, struct device_attribute *attr, char *page) { ssize_t r; r = get_modalias(page, PAGE_SIZE-1); page[r] = '\n'; page[r+1] = 0; return r+1; } static struct device_attribute sys_dmi_modalias_attr = __ATTR(modalias, 0444, sys_dmi_modalias_show, NULL); static struct attribute *sys_dmi_attributes[DMI_STRING_MAX+2]; static struct attribute_group sys_dmi_attribute_group = { .attrs = sys_dmi_attributes, }; static const struct attribute_group* sys_dmi_attribute_groups[] = { &sys_dmi_attribute_group, NULL }; static int dmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env) { ssize_t len; if (add_uevent_var(env, "MODALIAS=")) return -ENOMEM; len = get_modalias(&env->buf[env->buflen - 1], sizeof(env->buf) - env->buflen); if (len >= (sizeof(env->buf) - env->buflen)) return -ENOMEM; env->buflen += len; return 0; } static struct class dmi_class = { .name = "dmi", .dev_release = (void(*)(struct device *)) kfree, .dev_uevent = dmi_dev_uevent, }; static struct device *dmi_dev; /* Initialization */ #define ADD_DMI_ATTR(_name, _field) \ if (dmi_get_system_info(_field)) \ sys_dmi_attributes[i++] = &sys_dmi_##_name##_attr.dev_attr.attr; /* In a separate function to keep gcc 3.2 happy - do NOT merge this in dmi_id_init! */ static void __init dmi_id_init_attr_table(void) { int i; /* Not necessarily all DMI fields are available on all * systems, hence let's built an attribute table of just * what's available */ i = 0; ADD_DMI_ATTR(bios_vendor, DMI_BIOS_VENDOR); ADD_DMI_ATTR(bios_version, DMI_BIOS_VERSION); ADD_DMI_ATTR(bios_date, DMI_BIOS_DATE); ADD_DMI_ATTR(sys_vendor, DMI_SYS_VENDOR); ADD_DMI_ATTR(product_name, DMI_PRODUCT_NAME); ADD_DMI_ATTR(product_version, DMI_PRODUCT_VERSION); ADD_DMI_ATTR(product_serial, DMI_PRODUCT_SERIAL); ADD_DMI_ATTR(product_uuid, DMI_PRODUCT_UUID); ADD_DMI_ATTR(product_family, DMI_PRODUCT_FAMILY); ADD_DMI_ATTR(product_sku, DMI_PRODUCT_SKU); ADD_DMI_ATTR(board_vendor, DMI_BOARD_VENDOR); ADD_DMI_ATTR(board_name, DMI_BOARD_NAME); ADD_DMI_ATTR(board_version, DMI_BOARD_VERSION); ADD_DMI_ATTR(board_serial, DMI_BOARD_SERIAL); ADD_DMI_ATTR(board_asset_tag, DMI_BOARD_ASSET_TAG); ADD_DMI_ATTR(chassis_vendor, DMI_CHASSIS_VENDOR); ADD_DMI_ATTR(chassis_type, DMI_CHASSIS_TYPE); ADD_DMI_ATTR(chassis_version, DMI_CHASSIS_VERSION); ADD_DMI_ATTR(chassis_serial, DMI_CHASSIS_SERIAL); ADD_DMI_ATTR(chassis_asset_tag, DMI_CHASSIS_ASSET_TAG); sys_dmi_attributes[i++] = &sys_dmi_modalias_attr.attr; } static int __init dmi_id_init(void) { int ret; if (!dmi_available) return -ENODEV; dmi_id_init_attr_table(); ret = class_register(&dmi_class); if (ret) return ret; dmi_dev = kzalloc(sizeof(*dmi_dev), GFP_KERNEL); if (!dmi_dev) { ret = -ENOMEM; goto fail_class_unregister; } dmi_dev->class = &dmi_class; dev_set_name(dmi_dev, "id"); dmi_dev->groups = sys_dmi_attribute_groups; ret = device_register(dmi_dev); if (ret) goto fail_put_dmi_dev; return 0; fail_put_dmi_dev: put_device(dmi_dev); fail_class_unregister: class_unregister(&dmi_class); return ret; } arch_initcall(dmi_id_init);
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