mdadm (3.3.2-5) unstable; urgency=medium

  * use-tempnode-not-devnode.patch: change udev rules file to use
    $tempnode which works both on wheezy and jessie udev, instead
    of $devnode which only works in jessie.  At this stage it is
    better to make rules file compatible with old version instead
    of adding versioned dependency.  Should be removed for jessie+1.
    (Closes: #770883)
  * fix Closes: list in previous entry (Closes: #771852)

# imported from the archive

1 files changed, 513 insertions, 0 deletions

diff --git a/platform-intel.c b/platform-intel.c
new file mode 100644
index 00000000..f347382a
--- /dev/null
+++ b/platform-intel.c
@@ -0,0 +1,513 @@
+/*
+ * Intel(R) Matrix Storage Manager hardware and firmware support routines
+ *
+ * Copyright (C) 2008 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include "mdadm.h"
+#include "platform-intel.h"
+#include "probe_roms.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <limits.h>
+
+static int devpath_to_ll(const char *dev_path, const char *entry,
+			 unsigned long long *val);
+
+static __u16 devpath_to_vendor(const char *dev_path);
+
+static void free_sys_dev(struct sys_dev **list)
+{
+	while (*list) {
+		struct sys_dev *next = (*list)->next;
+
+		if ((*list)->path)
+			free((*list)->path);
+		free(*list);
+		*list = next;
+	}
+}
+
+struct sys_dev *find_driver_devices(const char *bus, const char *driver)
+{
+	/* search sysfs for devices driven by 'driver' */
+	char path[292];
+	char link[256];
+	char *c;
+	DIR *driver_dir;
+	struct dirent *de;
+	struct sys_dev *head = NULL;
+	struct sys_dev *list = NULL;
+	enum sys_dev_type type;
+	unsigned long long dev_id;
+
+	if (strcmp(driver, "isci") == 0)
+		type = SYS_DEV_SAS;
+	else if (strcmp(driver, "ahci") == 0)
+		type = SYS_DEV_SATA;
+	else
+		type = SYS_DEV_UNKNOWN;
+
+	sprintf(path, "/sys/bus/%s/drivers/%s", bus, driver);
+	driver_dir = opendir(path);
+	if (!driver_dir)
+		return NULL;
+	for (de = readdir(driver_dir); de; de = readdir(driver_dir)) {
+		int n;
+
+		/* is 'de' a device? check that the 'subsystem' link exists and
+		 * that its target matches 'bus'
+		 */
+		sprintf(path, "/sys/bus/%s/drivers/%s/%s/subsystem",
+			bus, driver, de->d_name);
+		n = readlink(path, link, sizeof(link));
+		if (n < 0 || n >= (int)sizeof(link))
+			continue;
+		link[n] = '\0';
+		c = strrchr(link, '/');
+		if (!c)
+			continue;
+		if (strncmp(bus, c+1, strlen(bus)) != 0)
+			continue;
+
+		sprintf(path, "/sys/bus/%s/drivers/%s/%s",
+			bus, driver, de->d_name);
+
+		/* if it's not Intel device skip it. */
+		if (devpath_to_vendor(path) != 0x8086)
+			continue;
+
+		if (devpath_to_ll(path, "device", &dev_id) != 0)
+			continue;
+
+		/* start / add list entry */
+		if (!head) {
+			head = xmalloc(sizeof(*head));
+			list = head;
+		} else {
+			list->next = xmalloc(sizeof(*head));
+			list = list->next;
+		}
+
+		if (!list) {
+			free_sys_dev(&head);
+			break;
+		}
+
+		list->dev_id = (__u16) dev_id;
+		list->type = type;
+		list->path = realpath(path, NULL);
+		list->next = NULL;
+		if ((list->pci_id = strrchr(list->path, '/')) != NULL)
+			list->pci_id++;
+	}
+	closedir(driver_dir);
+	return head;
+}
+
+static struct sys_dev *intel_devices=NULL;
+static time_t valid_time = 0;
+
+static enum sys_dev_type device_type_by_id(__u16 device_id)
+{
+	struct sys_dev *iter;
+
+	for(iter = intel_devices; iter != NULL; iter = iter->next)
+		if (iter->dev_id == device_id)
+			return iter->type;
+	return SYS_DEV_UNKNOWN;
+}
+
+static int devpath_to_ll(const char *dev_path, const char *entry, unsigned long long *val)
+{
+	char path[strlen(dev_path) + strlen(entry) + 2];
+	int fd;
+	int n;
+
+	sprintf(path, "%s/%s", dev_path, entry);
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return -1;
+	n = sysfs_fd_get_ll(fd, val);
+	close(fd);
+	return n;
+}
+
+static __u16 devpath_to_vendor(const char *dev_path)
+{
+	char path[strlen(dev_path) + strlen("/vendor") + 1];
+	char vendor[7];
+	int fd;
+	__u16 id = 0xffff;
+	int n;
+
+	sprintf(path, "%s/vendor", dev_path);
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return 0xffff;
+
+	n = read(fd, vendor, sizeof(vendor));
+	if (n == sizeof(vendor)) {
+		vendor[n - 1] = '\0';
+		id = strtoul(vendor, NULL, 16);
+	}
+	close(fd);
+
+	return id;
+}
+
+struct sys_dev *find_intel_devices(void)
+{
+	struct sys_dev *ahci, *isci;
+
+	if (valid_time > time(0) - 10)
+		return intel_devices;
+
+	if (intel_devices)
+		free_sys_dev(&intel_devices);
+
+	isci = find_driver_devices("pci", "isci");
+	ahci = find_driver_devices("pci", "ahci");
+
+	if (!ahci) {
+		ahci = isci;
+	} else {
+		struct sys_dev *elem = ahci;
+		while (elem->next)
+			elem = elem->next;
+		elem->next = isci;
+	}
+	intel_devices = ahci;
+	valid_time = time(0);
+	return intel_devices;
+}
+
+/*
+ * PCI Expansion ROM Data Structure Format */
+struct pciExpDataStructFormat {
+	__u8  ver[4];
+	__u16 vendorID;
+	__u16 deviceID;
+} __attribute__ ((packed));
+
+static struct imsm_orom imsm_orom[SYS_DEV_MAX];
+static int populated_orom[SYS_DEV_MAX];
+
+static int scan(const void *start, const void *end, const void *data)
+{
+	int offset;
+	const struct imsm_orom *imsm_mem;
+	int dev;
+	int len = (end - start);
+	struct pciExpDataStructFormat *ptr= (struct pciExpDataStructFormat *)data;
+
+	if (data + 0x18 > end) {
+		dprintf("cannot find pciExpDataStruct \n");
+		return 0;
+	}
+
+	dprintf("ptr->vendorID: %lx __le16_to_cpu(ptr->deviceID): %lx \n",
+		(ulong) __le16_to_cpu(ptr->vendorID),
+		(ulong) __le16_to_cpu(ptr->deviceID));
+
+	if (__le16_to_cpu(ptr->vendorID) == 0x8086) {
+		/* serach  attached intel devices by device id from OROM */
+		dev = device_type_by_id(__le16_to_cpu(ptr->deviceID));
+		if (dev == SYS_DEV_UNKNOWN)
+			return 0;
+	}
+	else
+		return 0;
+
+	for (offset = 0; offset < len; offset += 4) {
+		imsm_mem = start + offset;
+		if ((memcmp(imsm_mem->signature, "$VER", 4) == 0)) {
+			imsm_orom[dev] = *imsm_mem;
+			populated_orom[dev] = 1;
+			return populated_orom[SYS_DEV_SATA] && populated_orom[SYS_DEV_SAS];
+		}
+	}
+	return 0;
+}
+
+const struct imsm_orom *imsm_platform_test(enum sys_dev_type hba_id, int *populated,
+					   struct imsm_orom *imsm_orom)
+{
+	memset(imsm_orom, 0, sizeof(*imsm_orom));
+	imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+				IMSM_OROM_RLC_RAID10 | IMSM_OROM_RLC_RAID5;
+	imsm_orom->sss = IMSM_OROM_SSS_4kB | IMSM_OROM_SSS_8kB |
+				IMSM_OROM_SSS_16kB | IMSM_OROM_SSS_32kB |
+				IMSM_OROM_SSS_64kB | IMSM_OROM_SSS_128kB |
+				IMSM_OROM_SSS_256kB | IMSM_OROM_SSS_512kB |
+				IMSM_OROM_SSS_1MB | IMSM_OROM_SSS_2MB;
+	imsm_orom->dpa = IMSM_OROM_DISKS_PER_ARRAY;
+	imsm_orom->tds = IMSM_OROM_TOTAL_DISKS;
+	imsm_orom->vpa = IMSM_OROM_VOLUMES_PER_ARRAY;
+	imsm_orom->vphba = IMSM_OROM_VOLUMES_PER_HBA;
+	imsm_orom->attr = imsm_orom->rlc | IMSM_OROM_ATTR_ChecksumVerify;
+	*populated = 1;
+
+	if (check_env("IMSM_TEST_OROM_NORAID5")) {
+		imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+				IMSM_OROM_RLC_RAID10;
+	}
+	if (check_env("IMSM_TEST_AHCI_EFI_NORAID5") && (hba_id == SYS_DEV_SAS)) {
+		imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+				IMSM_OROM_RLC_RAID10;
+	}
+	if (check_env("IMSM_TEST_SCU_EFI_NORAID5") && (hba_id == SYS_DEV_SATA)) {
+		imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+				IMSM_OROM_RLC_RAID10;
+	}
+
+	return imsm_orom;
+}
+
+static const struct imsm_orom *find_imsm_hba_orom(enum sys_dev_type hba_id)
+{
+	unsigned long align;
+
+	if (hba_id >= SYS_DEV_MAX)
+		return NULL;
+
+	/* it's static data so we only need to read it once */
+	if (populated_orom[hba_id]) {
+		dprintf("OROM CAP: %p, pid: %d pop: %d\n",
+			&imsm_orom[hba_id], (int) getpid(), populated_orom[hba_id]);
+		return &imsm_orom[hba_id];
+	}
+	if (check_env("IMSM_TEST_OROM")) {
+		dprintf("OROM CAP: %p,  pid: %d pop: %d\n",
+			&imsm_orom[hba_id], (int) getpid(), populated_orom[hba_id]);
+		return imsm_platform_test(hba_id, &populated_orom[hba_id], &imsm_orom[hba_id]);
+	}
+	/* return empty OROM capabilities in EFI test mode */
+	if (check_env("IMSM_TEST_AHCI_EFI") ||
+	    check_env("IMSM_TEST_SCU_EFI"))
+		return NULL;
+
+	find_intel_devices();
+
+	if (intel_devices == NULL)
+		return NULL;
+
+	/* scan option-rom memory looking for an imsm signature */
+	if (check_env("IMSM_SAFE_OROM_SCAN"))
+		align = 2048;
+	else
+		align = 512;
+	if (probe_roms_init(align) != 0)
+		return NULL;
+	probe_roms();
+	/* ignore return value - True is returned if both adapater roms are found */
+	scan_adapter_roms(scan);
+	probe_roms_exit();
+
+	if (populated_orom[hba_id])
+		return &imsm_orom[hba_id];
+	return NULL;
+}
+
+#define GUID_STR_MAX	37  /* according to GUID format:
+			     * xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" */
+
+#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
+((struct efi_guid) \
+{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+  (b) & 0xff, ((b) >> 8) & 0xff, \
+  (c) & 0xff, ((c) >> 8) & 0xff, \
+  (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
+
+#define SYS_EFI_VAR_PATH "/sys/firmware/efi/vars"
+#define SCU_PROP "RstScuV"
+#define AHCI_PROP "RstSataV"
+
+#define VENDOR_GUID \
+	EFI_GUID(0x193dfefa, 0xa445, 0x4302, 0x99, 0xd8, 0xef, 0x3a, 0xad, 0x1a, 0x04, 0xc6)
+
+int populated_efi[SYS_DEV_MAX] = { 0, 0 };
+
+static struct imsm_orom imsm_efi[SYS_DEV_MAX];
+
+int read_efi_variable(void *buffer, ssize_t buf_size, char *variable_name, struct efi_guid guid)
+{
+	char path[PATH_MAX];
+	char buf[GUID_STR_MAX];
+	int dfd;
+	ssize_t n, var_data_len;
+
+	snprintf(path, PATH_MAX, "%s/%s-%s/size", SYS_EFI_VAR_PATH, variable_name, guid_str(buf, guid));
+
+	dprintf("EFI VAR: path=%s\n", path);
+	/* get size of variable data */
+	dfd = open(path, O_RDONLY);
+	if (dfd < 0)
+		return 1;
+
+	n = read(dfd, &buf, sizeof(buf));
+	close(dfd);
+	if (n < 0)
+		return 1;
+	buf[n] = '\0';
+
+	errno = 0;
+	var_data_len = strtoul(buf, NULL, 16);
+	if ((errno == ERANGE && (var_data_len == LONG_MAX))
+	    || (errno != 0 && var_data_len == 0))
+		return 1;
+
+	/* get data */
+	snprintf(path, PATH_MAX, "%s/%s-%s/data", SYS_EFI_VAR_PATH, variable_name, guid_str(buf, guid));
+
+	dprintf("EFI VAR: path=%s\n", path);
+	dfd = open(path, O_RDONLY);
+	if (dfd < 0)
+		return 1;
+
+	n = read(dfd, buffer, buf_size);
+	close(dfd);
+	if (n != var_data_len || n < buf_size) {
+		return 1;
+	}
+
+	return 0;
+}
+
+const struct imsm_orom *find_imsm_efi(enum sys_dev_type hba_id)
+{
+	if (hba_id >= SYS_DEV_MAX)
+		return NULL;
+
+	dprintf("EFI CAP: %p,  pid: %d pop: %d\n",
+		&imsm_efi[hba_id], (int) getpid(), populated_efi[hba_id]);
+
+	/* it's static data so we only need to read it once */
+	if (populated_efi[hba_id]) {
+		dprintf("EFI CAP: %p, pid: %d pop: %d\n",
+			&imsm_efi[hba_id], (int) getpid(), populated_efi[hba_id]);
+		return &imsm_efi[hba_id];
+	}
+	if (check_env("IMSM_TEST_AHCI_EFI") ||
+	    check_env("IMSM_TEST_SCU_EFI")) {
+		dprintf("OROM CAP: %p,  pid: %d pop: %d\n",
+			&imsm_efi[hba_id], (int) getpid(), populated_efi[hba_id]);
+		return imsm_platform_test(hba_id, &populated_efi[hba_id], &imsm_efi[hba_id]);
+	}
+	/* OROM test is set, return that there is no EFI capabilities */
+	if (check_env("IMSM_TEST_OROM"))
+		return NULL;
+
+	if (read_efi_variable(&imsm_efi[hba_id], sizeof(imsm_efi[0]), hba_id == SYS_DEV_SAS ? SCU_PROP : AHCI_PROP, VENDOR_GUID)) {
+		populated_efi[hba_id] = 0;
+		return NULL;
+	}
+
+	populated_efi[hba_id] = 1;
+	return &imsm_efi[hba_id];
+}
+
+/*
+ * backward interface compatibility
+ */
+const struct imsm_orom *find_imsm_orom(void)
+{
+	return find_imsm_hba_orom(SYS_DEV_SATA);
+}
+
+const struct imsm_orom *find_imsm_capability(enum sys_dev_type hba_id)
+{
+	const struct imsm_orom *cap=NULL;
+
+	if ((cap = find_imsm_efi(hba_id)) != NULL)
+		return cap;
+	if ((cap = find_imsm_hba_orom(hba_id)) != NULL)
+		return cap;
+	return NULL;
+}
+
+char *devt_to_devpath(dev_t dev)
+{
+	char device[46];
+
+	sprintf(device, "/sys/dev/block/%d:%d/device", major(dev), minor(dev));
+	return realpath(device, NULL);
+}
+
+char *diskfd_to_devpath(int fd)
+{
+	/* return the device path for a disk, return NULL on error or fd
+	 * refers to a partition
+	 */
+	struct stat st;
+
+	if (fstat(fd, &st) != 0)
+		return NULL;
+	if (!S_ISBLK(st.st_mode))
+		return NULL;
+
+	return devt_to_devpath(st.st_rdev);
+}
+
+int path_attached_to_hba(const char *disk_path, const char *hba_path)
+{
+	int rc;
+
+	if (check_env("IMSM_TEST_AHCI_DEV") ||
+	    check_env("IMSM_TEST_SCU_DEV")) {
+		return 1;
+	}
+
+	if (!disk_path || !hba_path)
+		return 0;
+	dprintf("hba: %s - disk: %s\n", hba_path, disk_path);
+	if (strncmp(disk_path, hba_path, strlen(hba_path)) == 0)
+		rc = 1;
+	else
+		rc = 0;
+
+	return rc;
+}
+
+int devt_attached_to_hba(dev_t dev, const char *hba_path)
+{
+	char *disk_path = devt_to_devpath(dev);
+	int rc = path_attached_to_hba(disk_path, hba_path);
+
+	if (disk_path)
+		free(disk_path);
+
+	return rc;
+}
+
+int disk_attached_to_hba(int fd, const char *hba_path)
+{
+	char *disk_path = diskfd_to_devpath(fd);
+	int rc = path_attached_to_hba(disk_path, hba_path);
+
+	if (disk_path)
+		free(disk_path);
+
+	return rc;
+}