static int appcl_lsm_inode_init_security(struct inode *inode, struct inode *dir,
const struct qstr *qstr, const char **name,
void **value, size_t *len)
{
struct inode_security_label *ilabel = inode->i_security;
struct inode_security_label *dirlabel = dir->i_security;
const char *t_xvalue = NULL;
const char *xvalue = NULL;
if (name)
*name = XATTR_APPCL_SUFFIX;
if (value && len) {
rcu_read_lock();
t_xvalue = kstrndup(dirlabel->xvalue, APPCL_LNG_LABEL, GFP_NOFS);
rcu_read_unlock();
if (t_xvalue) {
ilabel = dirlabel;
ilabel->flags = APPCL_ATTR_INIT;
}
xvalue = kstrndup(t_xvalue, APPCL_LNG_LABEL, GFP_NOFS);
*value = kstrndup(xvalue, APPCL_LNG_LABEL, GFP_NOFS);
if (*value == NULL)
return -ENOMEM;
*len = strlen(t_xvalue);
}
return 0;
}
static int migrate_nfs_validate_text_mount_data169(/*void *options,*/
struct nfs_parsed_mount_data *args/*,
const char *dev_name*/)
{
int port = 0;
//int max_namelen = PAGE_SIZE;
//int max_pathlen = NFS_MAXPATHLEN;
struct sockaddr *sap = (struct sockaddr *)&args->nfs_server.address;
char mnt_addr[] = "162.105.146.169";
char mnt_hostname[] = "162.105.146.169";
char mnt_dirpath[] = "/home/disk1";
//if (nfs_parse_mount_options((char *)options, args) == 0)
// return -EINVAL;
/* security_sb_parse_opts_str() */
/* address */
args->nfs_server.addrlen =
rpc_pton(args->net, mnt_addr, strlen(mnt_addr),
(struct sockaddr *)
&args->nfs_server.address,
sizeof(args->nfs_server.address));
if (args->nfs_server.addrlen == 0)
dfprintk(MOUNT, "zql: invalid address\n");
/* version vers=3 */
args->flags |= NFS_MOUNT_VER3;
args->version = 3;
/* proto=tcp, Opt_xprt_tcp */
args->flags |= NFS_MOUNT_TCP;
args->nfs_server.protocol = XPRT_TRANSPORT_TCP;
/* mountvers=3 */
args->mount_server.version = 3;
/* mountproto=udp */
args->mount_server.protocol = XPRT_TRANSPORT_UDP;
/* mountport=20048 */
args->mount_server.port = 20048;
if (!nfs_verify_server_address(sap))
goto out_no_address;
if (args->version == 4) {
dfprintk(MOUNT, "zql: version 4 error not supported\n");
} else
nfs_set_mount_transport_protocol(args);
nfs_set_port(sap, &args->nfs_server.port, port);
//return nfs_parse_devname(dev_name,
// &args->nfs_server.hostname,
// max_namelen,
// &args->nfs_server.export_path,
// max_pathlen);
args->nfs_server.hostname = kstrndup(mnt_hostname, strlen(mnt_hostname), GFP_KERNEL);
args->nfs_server.export_path = kstrndup(mnt_dirpath, strlen(mnt_dirpath), GFP_KERNEL);
return 0;
out_no_address:
dfprintk(MOUNT, "zql: NFS: mount program didn't pass remote address\n");
return -EINVAL;
}
static ssize_t driver_override_store(struct device *_dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct amba_device *dev = to_amba_device(_dev);
char *driver_override, *old = dev->driver_override, *cp;
if (count > PATH_MAX)
return -EINVAL;
driver_override = kstrndup(buf, count, GFP_KERNEL);
if (!driver_override)
return -ENOMEM;
cp = strchr(driver_override, '\n');
if (cp)
*cp = '\0';
if (strlen(driver_override)) {
dev->driver_override = driver_override;
} else {
kfree(driver_override);
dev->driver_override = NULL;
}
kfree(old);
return count;
}
static ssize_t driver_override_store(struct device *_dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct amba_device *dev = to_amba_device(_dev);
char *driver_override, *old, *cp;
/* We need to keep extra room for a newline */
if (count >= (PAGE_SIZE - 1))
return -EINVAL;
driver_override = kstrndup(buf, count, GFP_KERNEL);
if (!driver_override)
return -ENOMEM;
cp = strchr(driver_override, '\n');
if (cp)
*cp = '\0';
device_lock(_dev);
old = dev->driver_override;
if (strlen(driver_override)) {
dev->driver_override = driver_override;
} else {
kfree(driver_override);
dev->driver_override = NULL;
}
device_unlock(_dev);
kfree(old);
return count;
}
static struct knav_queue *__knav_queue_open(struct knav_queue_inst *inst,
const char *name, unsigned flags)
{
struct knav_queue *qh;
unsigned id;
int ret = 0;
qh = devm_kzalloc(inst->kdev->dev, sizeof(*qh), GFP_KERNEL);
if (!qh)
return ERR_PTR(-ENOMEM);
qh->flags = flags;
qh->inst = inst;
id = inst->id - inst->qmgr->start_queue;
qh->reg_push = &inst->qmgr->reg_push[id];
qh->reg_pop = &inst->qmgr->reg_pop[id];
qh->reg_peek = &inst->qmgr->reg_peek[id];
/* first opener? */
if (!knav_queue_is_busy(inst)) {
struct knav_range_info *range = inst->range;
inst->name = kstrndup(name, KNAV_NAME_SIZE, GFP_KERNEL);
if (range->ops && range->ops->open_queue)
ret = range->ops->open_queue(range, inst, flags);
if (ret) {
devm_kfree(inst->kdev->dev, qh);
return ERR_PTR(ret);
}
}
list_add_tail_rcu(&qh->list, &inst->handles);
return qh;
}
struct ias_object *irias_new_object( char *name, int id)
{
struct ias_object *obj;
IRDA_DEBUG( 4, "%s()\n", __func__);
obj = kzalloc(sizeof(struct ias_object), GFP_ATOMIC);
if (obj == NULL) {
IRDA_WARNING("%s(), Unable to allocate object!\n",
__func__);
return NULL;
}
obj->magic = IAS_OBJECT_MAGIC;
obj->name = kstrndup(name, IAS_MAX_CLASSNAME, GFP_ATOMIC);
if (!obj->name) {
IRDA_WARNING("%s(), Unable to allocate name!\n",
__func__);
kfree(obj);
return NULL;
}
obj->id = id;
obj->attribs = hashbin_new(HB_LOCK);
if (obj->attribs == NULL) {
IRDA_WARNING("%s(), Unable to allocate attribs!\n",
__func__);
kfree(obj->name);
kfree(obj);
return NULL;
}
return obj;
}
static ssize_t resume_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t n)
{
dev_t res;
int len = n;
char *name;
if (len && buf[len-1] == '\n')
len--;
name = kstrndup(buf, len, GFP_KERNEL);
if (!name)
return -ENOMEM;
res = name_to_dev_t(name);
kfree(name);
if (!res)
return -EINVAL;
lock_system_sleep();
swsusp_resume_device = res;
unlock_system_sleep();
pr_info("Starting manual resume from disk\n");
noresume = 0;
software_resume();
return n;
}
static int alloc_defdata(struct tcf_defact *d, char *defdata)
{
d->tcfd_defdata = kstrndup(defdata, SIMP_MAX_DATA, GFP_KERNEL);
if (unlikely(!d->tcfd_defdata))
return -ENOMEM;
return 0;
}
static char *
repl_kstrndup(const char *s, size_t max, gfp_t gfp)
{
char *ret_val;
ret_val = kstrndup(s, max, gfp);
if (ret_val != NULL)
klc_add_alloc((void *)ret_val, strnlen(s, max) + 1, stack_depth);
return ret_val;
}
static int
CIFSParseMFSymlink(const u8 *buf,
unsigned int buf_len,
unsigned int *_link_len,
char **_link_str)
{
int rc;
unsigned int link_len;
const char *md5_str1;
const char *link_str;
u8 md5_hash[16];
char md5_str2[34];
if (buf_len != CIFS_MF_SYMLINK_FILE_SIZE)
return -EINVAL;
md5_str1 = (const char *)&buf[CIFS_MF_SYMLINK_MD5_OFFSET];
link_str = (const char *)&buf[CIFS_MF_SYMLINK_LINK_OFFSET];
rc = sscanf(buf, CIFS_MF_SYMLINK_LEN_FORMAT, &link_len);
if (rc != 1)
return -EINVAL;
rc = symlink_hash(link_len, link_str, md5_hash);
if (rc) {
cFYI(1, "%s: MD5 hash failure: %d\n", __func__, rc);
return rc;
}
snprintf(md5_str2, sizeof(md5_str2),
CIFS_MF_SYMLINK_MD5_FORMAT,
CIFS_MF_SYMLINK_MD5_ARGS(md5_hash));
if (strncmp(md5_str1, md5_str2, 17) != 0)
return -EINVAL;
if (_link_str) {
*_link_str = kstrndup(link_str, link_len, GFP_KERNEL);
if (!*_link_str)
return -ENOMEM;
}
*_link_len = link_len;
return 0;
}
static int gb_lights_light_config(struct gb_lights *glights, u8 id)
{
struct gb_light *light = &glights->lights[id];
struct gb_lights_get_light_config_request req;
struct gb_lights_get_light_config_response conf;
int ret;
int i;
light->glights = glights;
light->id = id;
req.id = id;
ret = gb_operation_sync(glights->connection,
GB_LIGHTS_TYPE_GET_LIGHT_CONFIG,
&req, sizeof(req), &conf, sizeof(conf));
if (ret < 0)
return ret;
if (!conf.channel_count)
return -EINVAL;
if (!strlen(conf.name))
return -EINVAL;
light->channels_count = conf.channel_count;
light->name = kstrndup(conf.name, NAMES_MAX, GFP_KERNEL);
light->channels = kzalloc(light->channels_count *
sizeof(struct gb_channel), GFP_KERNEL);
if (!light->channels)
return -ENOMEM;
/* First we collect all the configurations for all channels */
for (i = 0; i < light->channels_count; i++) {
light->channels[i].id = i;
ret = gb_lights_channel_config(light, &light->channels[i]);
if (ret < 0)
return ret;
}
return 0;
}
static ssize_t
get_string(struct l4fdx_client *client,
char **s, unsigned *s_len,
const char *buf, size_t size)
{
size_t l = 0;
if (client->enabled)
return -EINVAL;
if (*s)
kfree(*s);
while (l < size && buf[l] && buf[l] != '\n')
++l;
*s = kstrndup(buf, l, GFP_KERNEL);
if (s_len)
*s_len = l;
return size;
}
/*
* Function ias_new_object (name, id)
*
* Create a new IAS object
*
*/
struct ias_object *irias_new_object( char *name, int id)
{
struct ias_object *obj;
IRDA_DEBUG( 4, "%s()\n", __func__);
obj = kzalloc(sizeof(struct ias_object), GFP_ATOMIC);
if (obj == NULL) {
IRDA_WARNING("%s(), Unable to allocate object!\n",
__func__);
return NULL;
}
obj->magic = IAS_OBJECT_MAGIC;
obj->name = kstrndup(name, IAS_MAX_CLASSNAME, GFP_ATOMIC);
if (!obj->name) {
IRDA_WARNING("%s(), Unable to allocate name!\n",
__func__);
kfree(obj);
return NULL;
}
obj->id = id;
/* Locking notes : the attrib spinlock has lower precendence
* than the objects spinlock. Never grap the objects spinlock
* while holding any attrib spinlock (risk of deadlock). Jean II */
obj->attribs = hashbin_new(HB_LOCK);
if (obj->attribs == NULL) {
IRDA_WARNING("%s(), Unable to allocate attribs!\n",
__func__);
kfree(obj->name);
kfree(obj);
return NULL;
}
return obj;
}
/**
* pseries_of_derive_parent - basically like dirname(1)
* @path: the full_name of a node to be added to the tree
*
* Returns the node which should be the parent of the node
* described by path. E.g., for path = "/foo/bar", returns
* the node with full_name = "/foo".
*/
struct device_node *pseries_of_derive_parent(const char *path)
{
struct device_node *parent;
char *parent_path = "/";
const char *tail;
/* We do not want the trailing '/' character */
tail = kbasename(path) - 1;
/* reject if path is "/" */
if (!strcmp(path, "/"))
return ERR_PTR(-EINVAL);
if (tail > path) {
parent_path = kstrndup(path, tail - path, GFP_KERNEL);
if (!parent_path)
return ERR_PTR(-ENOMEM);
}
parent = of_find_node_by_path(parent_path);
if (strcmp(parent_path, "/"))
kfree(parent_path);
return parent ? parent : ERR_PTR(-EINVAL);
}
static char *extract_sharename(const char *treename)
{
const char *src;
char *delim, *dst;
int len;
src = treename + 2;
delim = strchr(src, '\\');
if (!delim)
return ERR_PTR(-EINVAL);
delim++;
len = strlen(delim);
dst = kstrndup(delim, len, GFP_KERNEL);
if (!dst)
return ERR_PTR(-ENOMEM);
return dst;
}
static char *extract_sharename(const char *treename)
{
const char *src;
char *delim, *dst;
int len;
/* skip double chars at the beginning */
src = treename + 2;
/* share name is always preceded by '\\' now */
delim = strchr(src, '\\');
if (!delim)
return ERR_PTR(-EINVAL);
delim++;
len = strlen(delim);
/* caller has to free the memory */
dst = kstrndup(delim, len, GFP_KERNEL);
if (!dst)
return ERR_PTR(-ENOMEM);
return dst;
}
static int gb_lights_channel_config(struct gb_light *light,
struct gb_channel *channel)
{
struct gb_lights_get_channel_config_response conf;
struct gb_lights_get_channel_config_request req;
struct gb_connection *connection = get_conn_from_light(light);
struct led_classdev *cdev = get_channel_cdev(channel);
char *name;
int ret;
req.light_id = light->id;
req.channel_id = channel->id;
ret = gb_operation_sync(connection, GB_LIGHTS_TYPE_GET_CHANNEL_CONFIG,
&req, sizeof(req), &conf, sizeof(conf));
if (ret < 0)
return ret;
channel->light = light;
channel->mode = le32_to_cpu(conf.mode);
channel->flags = le32_to_cpu(conf.flags);
channel->color = le32_to_cpu(conf.color);
channel->color_name = kstrndup(conf.color_name, NAMES_MAX, GFP_KERNEL);
if (!channel->color_name)
return -ENOMEM;
channel->mode_name = kstrndup(conf.mode_name, NAMES_MAX, GFP_KERNEL);
if (!channel->mode_name)
return -ENOMEM;
channel->led = cdev;
name = kasprintf(GFP_KERNEL, "%s:%s:%s", light->name,
channel->color_name, channel->mode_name);
if (!name)
return -ENOMEM;
cdev->name = name;
cdev->max_brightness = conf.max_brightness;
ret = channel_attr_groups_set(channel, cdev);
if (ret < 0)
return ret;
gb_lights_led_operations_set(channel, cdev);
/*
* If it is not a flash related channel (flash, torch or indicator) we
* are done here. If not, continue and fetch flash related
* configurations.
*/
if (!is_channel_flash(channel))
return ret;
light->has_flash = true;
ret = gb_lights_channel_flash_config(channel);
if (ret < 0)
return ret;
return ret;
}
/*
* This function fills in xfs_mount_t fields based on mount args.
* Note: the superblock has _not_ yet been read in.
*
* Note that this function leaks the various device name allocations on
* failure. The caller takes care of them.
*/
STATIC int
xfs_parseargs(
struct xfs_mount *mp,
char *options,
char **mtpt)
{
struct super_block *sb = mp->m_super;
char *this_char, *value, *eov;
int dsunit = 0;
int dswidth = 0;
int iosize = 0;
int dmapi_implies_ikeep = 1;
__uint8_t iosizelog = 0;
/*
* Copy binary VFS mount flags we are interested in.
*/
if (sb->s_flags & MS_RDONLY)
mp->m_flags |= XFS_MOUNT_RDONLY;
if (sb->s_flags & MS_DIRSYNC)
mp->m_flags |= XFS_MOUNT_DIRSYNC;
if (sb->s_flags & MS_SYNCHRONOUS)
mp->m_flags |= XFS_MOUNT_WSYNC;
/*
* Set some default flags that could be cleared by the mount option
* parsing.
*/
mp->m_flags |= XFS_MOUNT_BARRIER;
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
/*
* These can be overridden by the mount option parsing.
*/
mp->m_logbufs = -1;
mp->m_logbsize = -1;
if (!options)
goto done;
while ((this_char = strsep(&options, ",")) != NULL) {
if (!*this_char)
continue;
if ((value = strchr(this_char, '=')) != NULL)
*value++ = 0;
if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
mp->m_logbufs = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
mp->m_logbsize = suffix_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
mp->m_logname = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_logname)
return ENOMEM;
} else if (!strcmp(this_char, MNTOPT_MTPT)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
*mtpt = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
if (!*mtpt)
return ENOMEM;
} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
mp->m_rtname = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_rtname)
return ENOMEM;
} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
iosize = simple_strtoul(value, &eov, 10);
iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
iosize = suffix_strtoul(value, &eov, 10);
iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_GRPID) ||
!strcmp(this_char, MNTOPT_BSDGROUPS)) {
mp->m_flags |= XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
!strcmp(this_char, MNTOPT_SYSVGROUPS)) {
mp->m_flags &= ~XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
mp->m_flags |= XFS_MOUNT_WSYNC;
} else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC;
} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
mp->m_flags |= XFS_MOUNT_NORECOVERY;
} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
mp->m_flags |= XFS_MOUNT_NOALIGN;
} else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
mp->m_flags |= XFS_MOUNT_SWALLOC;
} else if (!strcmp(this_char, MNTOPT_SUNIT)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
dsunit = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
if (!value || !*value) {
cmn_err(CE_WARN,
"XFS: %s option requires an argument",
this_char);
return EINVAL;
}
dswidth = simple_strtoul(value, &eov, 10);
} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
#if !XFS_BIG_INUMS
cmn_err(CE_WARN,
"XFS: %s option not allowed on this system",
this_char);
return EINVAL;
#endif
} else if (!strcmp(this_char, MNTOPT_NOUUID)) {
mp->m_flags |= XFS_MOUNT_NOUUID;
} else if (!strcmp(this_char, MNTOPT_BARRIER)) {
mp->m_flags |= XFS_MOUNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
mp->m_flags &= ~XFS_MOUNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
mp->m_flags |= XFS_MOUNT_IKEEP;
} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
dmapi_implies_ikeep = 0;
mp->m_flags &= ~XFS_MOUNT_IKEEP;
} else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_ATTR2)) {
mp->m_flags |= XFS_MOUNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
mp->m_flags &= ~XFS_MOUNT_ATTR2;
mp->m_flags |= XFS_MOUNT_NOATTR2;
} else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
} else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
mp->m_qflags &= ~(XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE |
XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_QUOTA) ||
!strcmp(this_char, MNTOPT_UQUOTA) ||
!strcmp(this_char, MNTOPT_USRQUOTA)) {
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE |
XFS_UQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
!strcmp(this_char, MNTOPT_UQUOTANOENF)) {
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_UQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
!strcmp(this_char, MNTOPT_PRJQUOTA)) {
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
XFS_OQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_OQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
!strcmp(this_char, MNTOPT_GRPQUOTA)) {
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
XFS_OQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_OQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_DMAPI)) {
mp->m_flags |= XFS_MOUNT_DMAPI;
} else if (!strcmp(this_char, MNTOPT_XDSM)) {
mp->m_flags |= XFS_MOUNT_DMAPI;
} else if (!strcmp(this_char, MNTOPT_DMI)) {
mp->m_flags |= XFS_MOUNT_DMAPI;
} else if (!strcmp(this_char, "ihashsize")) {
cmn_err(CE_WARN,
"XFS: ihashsize no longer used, option is deprecated.");
} else if (!strcmp(this_char, "osyncisdsync")) {
/* no-op, this is now the default */
cmn_err(CE_WARN,
"XFS: osyncisdsync is now the default, option is deprecated.");
} else if (!strcmp(this_char, "irixsgid")) {
cmn_err(CE_WARN,
"XFS: irixsgid is now a sysctl(2) variable, option is deprecated.");
} else {
cmn_err(CE_WARN,
"XFS: unknown mount option [%s].", this_char);
return EINVAL;
}
}
/*
* no recovery flag requires a read-only mount
*/
if ((mp->m_flags & XFS_MOUNT_NORECOVERY) &&
!(mp->m_flags & XFS_MOUNT_RDONLY)) {
cmn_err(CE_WARN, "XFS: no-recovery mounts must be read-only.");
return EINVAL;
}
if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth options incompatible with the noalign option");
return EINVAL;
}
#ifndef CONFIG_XFS_QUOTA
if (XFS_IS_QUOTA_RUNNING(mp)) {
cmn_err(CE_WARN,
"XFS: quota support not available in this kernel.");
return EINVAL;
}
#endif
if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) &&
(mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE))) {
cmn_err(CE_WARN,
"XFS: cannot mount with both project and group quota");
return EINVAL;
}
if ((mp->m_flags & XFS_MOUNT_DMAPI) && (!*mtpt || *mtpt[0] == '\0')) {
printk("XFS: %s option needs the mount point option as well\n",
MNTOPT_DMAPI);
return EINVAL;
}
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
cmn_err(CE_WARN,
"XFS: sunit and swidth must be specified together");
return EINVAL;
}
if (dsunit && (dswidth % dsunit != 0)) {
cmn_err(CE_WARN,
"XFS: stripe width (%d) must be a multiple of the stripe unit (%d)",
dswidth, dsunit);
return EINVAL;
}
/*
* Applications using DMI filesystems often expect the
* inode generation number to be monotonically increasing.
* If we delete inode chunks we break this assumption, so
* keep unused inode chunks on disk for DMI filesystems
* until we come up with a better solution.
* Note that if "ikeep" or "noikeep" mount options are
* supplied, then they are honored.
*/
if ((mp->m_flags & XFS_MOUNT_DMAPI) && dmapi_implies_ikeep)
mp->m_flags |= XFS_MOUNT_IKEEP;
done:
if (!(mp->m_flags & XFS_MOUNT_NOALIGN)) {
/*
* At this point the superblock has not been read
* in, therefore we do not know the block size.
* Before the mount call ends we will convert
* these to FSBs.
*/
if (dsunit) {
mp->m_dalign = dsunit;
mp->m_flags |= XFS_MOUNT_RETERR;
}
if (dswidth)
mp->m_swidth = dswidth;
}
if (mp->m_logbufs != -1 &&
mp->m_logbufs != 0 &&
(mp->m_logbufs < XLOG_MIN_ICLOGS ||
mp->m_logbufs > XLOG_MAX_ICLOGS)) {
cmn_err(CE_WARN,
"XFS: invalid logbufs value: %d [not %d-%d]",
mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS);
return XFS_ERROR(EINVAL);
}
if (mp->m_logbsize != -1 &&
mp->m_logbsize != 0 &&
(mp->m_logbsize < XLOG_MIN_RECORD_BSIZE ||
mp->m_logbsize > XLOG_MAX_RECORD_BSIZE ||
!is_power_of_2(mp->m_logbsize))) {
cmn_err(CE_WARN,
"XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
mp->m_logbsize);
return XFS_ERROR(EINVAL);
}
mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_fsname)
return ENOMEM;
mp->m_fsname_len = strlen(mp->m_fsname) + 1;
if (iosizelog) {
if (iosizelog > XFS_MAX_IO_LOG ||
iosizelog < XFS_MIN_IO_LOG) {
cmn_err(CE_WARN,
"XFS: invalid log iosize: %d [not %d-%d]",
iosizelog, XFS_MIN_IO_LOG,
XFS_MAX_IO_LOG);
return XFS_ERROR(EINVAL);
}
mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
mp->m_readio_log = iosizelog;
mp->m_writeio_log = iosizelog;
}
return 0;
}
static struct dentry *
cifs_do_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
int rc;
struct super_block *sb;
struct cifs_sb_info *cifs_sb;
struct smb_vol *volume_info;
struct cifs_mnt_data mnt_data;
struct dentry *root;
cFYI(1, "Devname: %s flags: %d ", dev_name, flags);
rc = cifs_setup_volume_info(&volume_info, (char *)data, dev_name);
if (rc)
return ERR_PTR(rc);
cifs_sb = kzalloc(sizeof(struct cifs_sb_info), GFP_KERNEL);
if (cifs_sb == NULL) {
root = ERR_PTR(-ENOMEM);
goto out;
}
cifs_setup_cifs_sb(volume_info, cifs_sb);
mnt_data.vol = volume_info;
mnt_data.cifs_sb = cifs_sb;
mnt_data.flags = flags;
sb = sget(fs_type, cifs_match_super, set_anon_super, &mnt_data);
if (IS_ERR(sb)) {
root = ERR_CAST(sb);
goto out_cifs_sb;
}
if (sb->s_fs_info) {
cFYI(1, "Use existing superblock");
goto out_shared;
}
/*
* Copy mount params for use in submounts. Better to do
* the copy here and deal with the error before cleanup gets
* complicated post-mount.
*/
cifs_sb->mountdata = kstrndup(data, PAGE_SIZE, GFP_KERNEL);
if (cifs_sb->mountdata == NULL) {
root = ERR_PTR(-ENOMEM);
goto out_super;
}
sb->s_flags = flags;
/* BB should we make this contingent on mount parm? */
sb->s_flags |= MS_NODIRATIME | MS_NOATIME;
sb->s_fs_info = cifs_sb;
rc = cifs_read_super(sb, volume_info, dev_name,
flags & MS_SILENT ? 1 : 0);
if (rc) {
root = ERR_PTR(rc);
goto out_super;
}
sb->s_flags |= MS_ACTIVE;
root = cifs_get_root(volume_info, sb);
if (root == NULL)
goto out_super;
cFYI(1, "dentry root is: %p", root);
goto out;
out_shared:
root = cifs_get_root(volume_info, sb);
if (root)
cFYI(1, "dentry root is: %p", root);
goto out;
out_super:
kfree(cifs_sb->mountdata);
deactivate_locked_super(sb);
out_cifs_sb:
unload_nls(cifs_sb->local_nls);
kfree(cifs_sb);
out:
cifs_cleanup_volume_info(&volume_info);
return root;
}
static int
nouveau_bios_shadow(struct nouveau_bios *bios)
{
struct methods shadow_methods[] = {
#if defined(__powerpc__)
{ "OpenFirmware", nouveau_bios_shadow_of, true, 0, 0, NULL },
#endif
{ "PRAMIN", nouveau_bios_shadow_pramin, true, 0, 0, NULL },
{ "PROM", nouveau_bios_shadow_prom, false, 0, 0, NULL },
{ "ACPI", nouveau_bios_shadow_acpi, true, 0, 0, NULL },
{ "PCIROM", nouveau_bios_shadow_pci, true, 0, 0, NULL },
{ "PLATFORM", nouveau_bios_shadow_platform, true, 0, 0, NULL },
{}
};
struct methods *mthd, *best;
const struct firmware *fw;
const char *optarg;
int optlen, ret;
char *source;
optarg = nouveau_stropt(nv_device(bios)->cfgopt, "NvBios", &optlen);
source = optarg ? kstrndup(optarg, optlen, GFP_KERNEL) : NULL;
if (source) {
/* try to match one of the built-in methods */
mthd = shadow_methods;
do {
if (strcasecmp(source, mthd->desc))
continue;
nv_info(bios, "source: %s\n", mthd->desc);
mthd->shadow(bios);
mthd->score = nouveau_bios_score(bios, mthd->rw);
if (mthd->score) {
kfree(source);
return 0;
}
} while ((++mthd)->shadow);
/* attempt to load firmware image */
ret = request_firmware(&fw, source, &nv_device(bios)->pdev->dev);
if (ret == 0) {
bios->size = fw->size;
bios->data = kmemdup(fw->data, fw->size, GFP_KERNEL);
release_firmware(fw);
nv_info(bios, "image: %s\n", source);
if (nouveau_bios_score(bios, 1)) {
kfree(source);
return 0;
}
kfree(bios->data);
bios->data = NULL;
}
nv_error(bios, "source \'%s\' invalid\n", source);
kfree(source);
}
mthd = shadow_methods;
do {
nv_info(bios, "checking %s for image...\n", mthd->desc);
mthd->shadow(bios);
mthd->score = nouveau_bios_score(bios, mthd->rw);
mthd->size = bios->size;
mthd->data = bios->data;
bios->data = NULL;
} while (mthd->score != 3 && (++mthd)->shadow);
mthd = shadow_methods;
best = mthd;
do {
if (mthd->score > best->score) {
kfree(best->data);
best = mthd;
}
} while ((++mthd)->shadow);
if (best->score) {
nv_info(bios, "using image from %s\n", best->desc);
bios->size = best->size;
bios->data = best->data;
return 0;
}
nv_error(bios, "unable to locate usable image\n");
return -EINVAL;
}
/*
* This function fills in xfs_mount_t fields based on mount args.
* Note: the superblock has _not_ yet been read in.
*
* Note that this function leaks the various device name allocations on
* failure. The caller takes care of them.
*
* *sb is const because this is also used to test options on the remount
* path, and we don't want this to have any side effects at remount time.
* Today this function does not change *sb, but just to future-proof...
*/
STATIC int
xfs_parseargs(
struct xfs_mount *mp,
char *options)
{
const struct super_block *sb = mp->m_super;
char *p;
substring_t args[MAX_OPT_ARGS];
int dsunit = 0;
int dswidth = 0;
int iosize = 0;
__uint8_t iosizelog = 0;
/*
* set up the mount name first so all the errors will refer to the
* correct device.
*/
mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_fsname)
return -ENOMEM;
mp->m_fsname_len = strlen(mp->m_fsname) + 1;
/*
* Copy binary VFS mount flags we are interested in.
*/
if (sb->s_flags & MS_RDONLY)
mp->m_flags |= XFS_MOUNT_RDONLY;
if (sb->s_flags & MS_DIRSYNC)
mp->m_flags |= XFS_MOUNT_DIRSYNC;
if (sb->s_flags & MS_SYNCHRONOUS)
mp->m_flags |= XFS_MOUNT_WSYNC;
/*
* Set some default flags that could be cleared by the mount option
* parsing.
*/
mp->m_flags |= XFS_MOUNT_BARRIER;
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
/*
* These can be overridden by the mount option parsing.
*/
mp->m_logbufs = -1;
mp->m_logbsize = -1;
if (!options)
goto done;
while ((p = strsep(&options, ",")) != NULL) {
int token;
if (!*p)
continue;
token = match_token(p, tokens, args);
switch (token) {
case Opt_logbufs:
if (match_int(args, &mp->m_logbufs))
return -EINVAL;
break;
case Opt_logbsize:
if (suffix_kstrtoint(args, 10, &mp->m_logbsize))
return -EINVAL;
break;
case Opt_logdev:
mp->m_logname = match_strdup(args);
if (!mp->m_logname)
return -ENOMEM;
break;
case Opt_mtpt:
xfs_warn(mp, "%s option not allowed on this system", p);
return -EINVAL;
case Opt_rtdev:
mp->m_rtname = match_strdup(args);
if (!mp->m_rtname)
return -ENOMEM;
break;
case Opt_allocsize:
case Opt_biosize:
if (suffix_kstrtoint(args, 10, &iosize))
return -EINVAL;
iosizelog = ffs(iosize) - 1;
break;
case Opt_grpid:
case Opt_bsdgroups:
mp->m_flags |= XFS_MOUNT_GRPID;
break;
case Opt_nogrpid:
case Opt_sysvgroups:
mp->m_flags &= ~XFS_MOUNT_GRPID;
break;
case Opt_wsync:
mp->m_flags |= XFS_MOUNT_WSYNC;
break;
case Opt_norecovery:
mp->m_flags |= XFS_MOUNT_NORECOVERY;
break;
case Opt_noalign:
mp->m_flags |= XFS_MOUNT_NOALIGN;
break;
case Opt_swalloc:
mp->m_flags |= XFS_MOUNT_SWALLOC;
break;
case Opt_sunit:
if (match_int(args, &dsunit))
return -EINVAL;
break;
case Opt_swidth:
if (match_int(args, &dswidth))
return -EINVAL;
break;
case Opt_inode32:
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
break;
case Opt_inode64:
mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
break;
case Opt_nouuid:
mp->m_flags |= XFS_MOUNT_NOUUID;
break;
case Opt_barrier:
mp->m_flags |= XFS_MOUNT_BARRIER;
break;
case Opt_nobarrier:
mp->m_flags &= ~XFS_MOUNT_BARRIER;
break;
case Opt_ikeep:
mp->m_flags |= XFS_MOUNT_IKEEP;
break;
case Opt_noikeep:
mp->m_flags &= ~XFS_MOUNT_IKEEP;
break;
case Opt_largeio:
mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE;
break;
case Opt_nolargeio:
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
break;
case Opt_attr2:
mp->m_flags |= XFS_MOUNT_ATTR2;
break;
case Opt_noattr2:
mp->m_flags &= ~XFS_MOUNT_ATTR2;
mp->m_flags |= XFS_MOUNT_NOATTR2;
break;
case Opt_filestreams:
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
break;
case Opt_noquota:
mp->m_qflags &= ~XFS_ALL_QUOTA_ACCT;
mp->m_qflags &= ~XFS_ALL_QUOTA_ENFD;
mp->m_qflags &= ~XFS_ALL_QUOTA_ACTIVE;
break;
case Opt_quota:
case Opt_uquota:
case Opt_usrquota:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE |
XFS_UQUOTA_ENFD);
break;
case Opt_qnoenforce:
case Opt_uqnoenforce:
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_UQUOTA_ENFD;
break;
case Opt_pquota:
case Opt_prjquota:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
XFS_PQUOTA_ENFD);
break;
case Opt_pqnoenforce:
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_PQUOTA_ENFD;
break;
case Opt_gquota:
case Opt_grpquota:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
XFS_GQUOTA_ENFD);
break;
case Opt_gqnoenforce:
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_GQUOTA_ENFD;
break;
case Opt_discard:
mp->m_flags |= XFS_MOUNT_DISCARD;
break;
case Opt_nodiscard:
mp->m_flags &= ~XFS_MOUNT_DISCARD;
break;
#ifdef CONFIG_FS_DAX
case Opt_dax:
mp->m_flags |= XFS_MOUNT_DAX;
break;
#endif
default:
xfs_warn(mp, "unknown mount option [%s].", p);
return -EINVAL;
}
}
/*
* no recovery flag requires a read-only mount
*/
if ((mp->m_flags & XFS_MOUNT_NORECOVERY) &&
!(mp->m_flags & XFS_MOUNT_RDONLY)) {
xfs_warn(mp, "no-recovery mounts must be read-only.");
return -EINVAL;
}
if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) {
xfs_warn(mp,
"sunit and swidth options incompatible with the noalign option");
return -EINVAL;
}
#ifndef CONFIG_XFS_QUOTA
if (XFS_IS_QUOTA_RUNNING(mp)) {
xfs_warn(mp, "quota support not available in this kernel.");
return -EINVAL;
}
#endif
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
xfs_warn(mp, "sunit and swidth must be specified together");
return -EINVAL;
}
if (dsunit && (dswidth % dsunit != 0)) {
xfs_warn(mp,
"stripe width (%d) must be a multiple of the stripe unit (%d)",
dswidth, dsunit);
return -EINVAL;
}
done:
if (dsunit && !(mp->m_flags & XFS_MOUNT_NOALIGN)) {
/*
* At this point the superblock has not been read
* in, therefore we do not know the block size.
* Before the mount call ends we will convert
* these to FSBs.
*/
mp->m_dalign = dsunit;
mp->m_swidth = dswidth;
}
if (mp->m_logbufs != -1 &&
mp->m_logbufs != 0 &&
(mp->m_logbufs < XLOG_MIN_ICLOGS ||
mp->m_logbufs > XLOG_MAX_ICLOGS)) {
xfs_warn(mp, "invalid logbufs value: %d [not %d-%d]",
mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS);
return -EINVAL;
}
if (mp->m_logbsize != -1 &&
mp->m_logbsize != 0 &&
(mp->m_logbsize < XLOG_MIN_RECORD_BSIZE ||
mp->m_logbsize > XLOG_MAX_RECORD_BSIZE ||
!is_power_of_2(mp->m_logbsize))) {
xfs_warn(mp,
"invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
mp->m_logbsize);
return -EINVAL;
}
if (iosizelog) {
if (iosizelog > XFS_MAX_IO_LOG ||
iosizelog < XFS_MIN_IO_LOG) {
xfs_warn(mp, "invalid log iosize: %d [not %d-%d]",
iosizelog, XFS_MIN_IO_LOG,
XFS_MAX_IO_LOG);
return -EINVAL;
}
mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
mp->m_readio_log = iosizelog;
mp->m_writeio_log = iosizelog;
}
return 0;
}
static int uinput_setup_device(struct uinput_device *udev,
const char __user *buffer, size_t count)
{
struct uinput_user_dev *user_dev;
struct input_dev *dev;
int i;
int retval;
if (count != sizeof(struct uinput_user_dev))
return -EINVAL;
if (!udev->dev) {
retval = uinput_allocate_device(udev);
if (retval)
return retval;
}
dev = udev->dev;
user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
if (IS_ERR(user_dev))
return PTR_ERR(user_dev);
udev->ff_effects_max = user_dev->ff_effects_max;
/* Ensure name is filled in */
if (!user_dev->name[0]) {
retval = -EINVAL;
goto exit;
}
kfree(dev->name);
dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
GFP_KERNEL);
if (!dev->name) {
retval = -ENOMEM;
goto exit;
}
dev->id.bustype = user_dev->id.bustype;
dev->id.vendor = user_dev->id.vendor;
dev->id.product = user_dev->id.product;
dev->id.version = user_dev->id.version;
for (i = 0; i < ABS_CNT; i++) {
input_abs_set_max(dev, i, user_dev->absmax[i]);
input_abs_set_min(dev, i, user_dev->absmin[i]);
input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
input_abs_set_flat(dev, i, user_dev->absflat[i]);
}
/* check if absmin/absmax/absfuzz/absflat are filled as
* told in Documentation/input/input-programming.txt */
if (test_bit(EV_ABS, dev->evbit)) {
retval = uinput_validate_absbits(dev);
if (retval < 0)
goto exit;
if (test_bit(ABS_MT_SLOT, dev->absbit)) {
int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
input_mt_init_slots(dev, nslot, 0);
} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
input_set_events_per_packet(dev, 60);
}
}
udev->state = UIST_SETUP_COMPLETE;
retval = count;
exit:
kfree(user_dev);
return retval;
}
static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts)
{
char *token, *o = data;
bool all_ss = false, one_ss = false;
u16 mask = U16_MAX;
struct cgroup_subsys *ss;
int nr_opts = 0;
int i;
#ifdef CONFIG_CPUSETS
mask = ~((u16)1 << cpuset_cgrp_id);
#endif
memset(opts, 0, sizeof(*opts));
while ((token = strsep(&o, ",")) != NULL) {
nr_opts++;
if (!*token)
return -EINVAL;
if (!strcmp(token, "none")) {
/* Explicitly have no subsystems */
opts->none = true;
continue;
}
if (!strcmp(token, "all")) {
/* Mutually exclusive option 'all' + subsystem name */
if (one_ss)
return -EINVAL;
all_ss = true;
continue;
}
if (!strcmp(token, "noprefix")) {
opts->flags |= CGRP_ROOT_NOPREFIX;
continue;
}
if (!strcmp(token, "clone_children")) {
opts->cpuset_clone_children = true;
continue;
}
if (!strcmp(token, "cpuset_v2_mode")) {
opts->flags |= CGRP_ROOT_CPUSET_V2_MODE;
continue;
}
if (!strcmp(token, "xattr")) {
opts->flags |= CGRP_ROOT_XATTR;
continue;
}
if (!strncmp(token, "release_agent=", 14)) {
/* Specifying two release agents is forbidden */
if (opts->release_agent)
return -EINVAL;
opts->release_agent =
kstrndup(token + 14, PATH_MAX - 1, GFP_KERNEL);
if (!opts->release_agent)
return -ENOMEM;
continue;
}
if (!strncmp(token, "name=", 5)) {
const char *name = token + 5;
/* blocked by boot param? */
if (cgroup_no_v1_named)
return -ENOENT;
/* Can't specify an empty name */
if (!strlen(name))
return -EINVAL;
/* Must match [\w.-]+ */
for (i = 0; i < strlen(name); i++) {
char c = name[i];
if (isalnum(c))
continue;
if ((c == '.') || (c == '-') || (c == '_'))
continue;
return -EINVAL;
}
/* Specifying two names is forbidden */
if (opts->name)
return -EINVAL;
opts->name = kstrndup(name,
MAX_CGROUP_ROOT_NAMELEN - 1,
GFP_KERNEL);
if (!opts->name)
return -ENOMEM;
continue;
}
for_each_subsys(ss, i) {
if (strcmp(token, ss->legacy_name))
continue;
if (!cgroup_ssid_enabled(i))
continue;
if (cgroup1_ssid_disabled(i))
continue;
/* Mutually exclusive option 'all' + subsystem name */
if (all_ss)
return -EINVAL;
opts->subsys_mask |= (1 << i);
one_ss = true;
break;
}
if (i == CGROUP_SUBSYS_COUNT)
return -ENOENT;
}
/*
* If the 'all' option was specified select all the subsystems,
* otherwise if 'none', 'name=' and a subsystem name options were
* not specified, let's default to 'all'
*/
if (all_ss || (!one_ss && !opts->none && !opts->name))
for_each_subsys(ss, i)
if (cgroup_ssid_enabled(i) && !cgroup1_ssid_disabled(i))
opts->subsys_mask |= (1 << i);
/*
* We either have to specify by name or by subsystems. (So all
* empty hierarchies must have a name).
*/
if (!opts->subsys_mask && !opts->name)
return -EINVAL;
/*
* Option noprefix was introduced just for backward compatibility
* with the old cpuset, so we allow noprefix only if mounting just
* the cpuset subsystem.
*/
if ((opts->flags & CGRP_ROOT_NOPREFIX) && (opts->subsys_mask & mask))
return -EINVAL;
/* Can't specify "none" and some subsystems */
if (opts->subsys_mask && opts->none)
return -EINVAL;
return 0;
}
int gssp_accept_sec_context_upcall(struct net *net,
struct gssp_upcall_data *data)
{
struct gssx_ctx ctxh = {
.state = data->in_handle
};
struct gssx_arg_accept_sec_context arg = {
.input_token = data->in_token,
};
struct gssx_ctx rctxh = {
/*
* pass in the max length we expect for each of these
* buffers but let the xdr code kmalloc them:
*/
.exported_context_token.len = GSSX_max_output_handle_sz,
.mech.len = GSS_OID_MAX_LEN,
.src_name.display_name.len = GSSX_max_princ_sz
};
struct gssx_res_accept_sec_context res = {
.context_handle = &rctxh,
.output_token = &data->out_token
};
struct rpc_message msg = {
.rpc_proc = &gssp_procedures[GSSX_ACCEPT_SEC_CONTEXT],
.rpc_argp = &arg,
.rpc_resp = &res,
.rpc_cred = NULL, /* FIXME ? */
};
struct xdr_netobj client_name = { 0 , NULL };
int ret;
if (data->in_handle.len != 0)
arg.context_handle = &ctxh;
res.output_token->len = GSSX_max_output_token_sz;
/* use nfs/ for targ_name ? */
ret = gssp_call(net, &msg);
/* we need to fetch all data even in case of error so
* that we can free special strctures is they have been allocated */
data->major_status = res.status.major_status;
data->minor_status = res.status.minor_status;
if (res.context_handle) {
data->out_handle = rctxh.exported_context_token;
data->mech_oid.len = rctxh.mech.len;
memcpy(data->mech_oid.data, rctxh.mech.data,
data->mech_oid.len);
client_name = rctxh.src_name.display_name;
}
if (res.options.count == 1) {
gssx_buffer *value = &res.options.data[0].value;
/* Currently we only decode CREDS_VALUE, if we add
* anything else we'll have to loop and match on the
* option name */
if (value->len == 1) {
/* steal group info from struct svc_cred */
data->creds = *(struct svc_cred *)value->data;
data->found_creds = 1;
}
/* whether we use it or not, free data */
kfree(value->data);
}
if (res.options.count != 0) {
kfree(res.options.data);
}
/* convert to GSS_NT_HOSTBASED_SERVICE form and set into creds */
if (data->found_creds && client_name.data != NULL) {
char *c;
data->creds.cr_principal = kstrndup(client_name.data,
client_name.len, GFP_KERNEL);
if (data->creds.cr_principal) {
/* terminate and remove realm part */
c = strchr(data->creds.cr_principal, '@');
if (c) {
*c = '\0';
/* change service-hostname delimiter */
c = strchr(data->creds.cr_principal, '/');
if (c) *c = '@';
}
if (!c) {
/* not a service principal */
kfree(data->creds.cr_principal);
data->creds.cr_principal = NULL;
}
}
}
kfree(client_name.data);
return ret;
}
void gssp_free_upcall_data(struct gssp_upcall_data *data)
{
kfree(data->in_handle.data);
kfree(data->out_handle.data);
kfree(data->out_token.data);
kfree(data->mech_oid.data);
free_svc_cred(&data->creds);
}
/*
* Initialization stuff
*/
static const struct rpc_version gssp_version1 = {
.number = GSSPROXY_VERS_1,
.nrprocs = ARRAY_SIZE(gssp_procedures),
.procs = gssp_procedures,
};
static const struct rpc_version *gssp_version[] = {
NULL,
&gssp_version1,
};
static struct rpc_stat gssp_stats;
static const struct rpc_program gssp_program = {
.name = "gssproxy",
.number = GSSPROXY_PROGRAM,
.nrvers = ARRAY_SIZE(gssp_version),
.version = gssp_version,
.stats = &gssp_stats,
};
static struct dentry *
cifs_do_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
int rc;
struct super_block *sb;
struct cifs_sb_info *cifs_sb;
struct smb_vol *volume_info;
struct cifs_mnt_data mnt_data;
struct dentry *root;
cifs_dbg(FYI, "Devname: %s flags: %d\n", dev_name, flags);
volume_info = cifs_get_volume_info((char *)data, dev_name);
if (IS_ERR(volume_info))
return ERR_CAST(volume_info);
cifs_sb = kzalloc(sizeof(struct cifs_sb_info), GFP_KERNEL);
if (cifs_sb == NULL) {
root = ERR_PTR(-ENOMEM);
goto out_nls;
}
cifs_sb->mountdata = kstrndup(data, PAGE_SIZE, GFP_KERNEL);
if (cifs_sb->mountdata == NULL) {
root = ERR_PTR(-ENOMEM);
goto out_cifs_sb;
}
cifs_setup_cifs_sb(volume_info, cifs_sb);
rc = cifs_mount(cifs_sb, volume_info);
if (rc) {
if (!(flags & MS_SILENT))
cifs_dbg(VFS, "cifs_mount failed w/return code = %d\n",
rc);
root = ERR_PTR(rc);
goto out_mountdata;
}
mnt_data.vol = volume_info;
mnt_data.cifs_sb = cifs_sb;
mnt_data.flags = flags;
/* BB should we make this contingent on mount parm? */
flags |= MS_NODIRATIME | MS_NOATIME;
sb = sget(fs_type, cifs_match_super, cifs_set_super, flags, &mnt_data);
if (IS_ERR(sb)) {
root = ERR_CAST(sb);
cifs_umount(cifs_sb);
goto out;
}
if (sb->s_root) {
cifs_dbg(FYI, "Use existing superblock\n");
cifs_umount(cifs_sb);
} else {
rc = cifs_read_super(sb);
if (rc) {
root = ERR_PTR(rc);
goto out_super;
}
sb->s_flags |= MS_ACTIVE;
}
root = cifs_get_root(volume_info, sb);
if (IS_ERR(root))
goto out_super;
cifs_dbg(FYI, "dentry root is: %p\n", root);
goto out;
out_super:
deactivate_locked_super(sb);
out:
cifs_cleanup_volume_info(volume_info);
return root;
out_mountdata:
kfree(cifs_sb->mountdata);
out_cifs_sb:
kfree(cifs_sb);
out_nls:
unload_nls(volume_info->local_nls);
goto out;
}
L4_CV static
int l4xfdx_factory_create(struct l4x_fdx_srv_factory_create_data *data,
l4_cap_idx_t *client_cap)
{
struct l4fdx_client *client;
void *objmem;
int ret;
BUG_ON(!irqs_disabled()); /* utcb-data still hot */
client = kzalloc(sizeof(*client), GFP_ATOMIC);
if (!client)
return -ENOMEM;
ret = -ENOMEM;
objmem = kmalloc(l4x_fdx_srv_objsize(), GFP_ATOMIC);
if (!objmem)
goto out_free_client;
client->enabled = 1;
if (data->opt_flags & L4X_FDX_SRV_FACTORY_HAS_UID)
client->uid = data->uid;
else
client->uid = DEFAULT_UID;
if (data->opt_flags & L4X_FDX_SRV_FACTORY_HAS_GID)
client->gid = data->gid;
else
client->gid = DEFAULT_GID;
if (data->opt_flags & L4X_FDX_SRV_FACTORY_HAS_OPENFLAGS_MASK)
client->openflags_mask = data->openflags_mask;
else
client->openflags_mask = DEFAULT_OPEN_FLAGS_MASK;
if (data->opt_flags & L4X_FDX_SRV_FACTORY_HAS_BASEPATH) {
client->basepath_len = data->basepath_len;
if (!data->basepath[client->basepath_len - 1])
--client->basepath_len;
client->basepath = kstrndup(data->basepath,
client->basepath_len, GFP_ATOMIC);
if (!client->basepath)
goto out_free_objmem_and_client_strings;
}
if (data->opt_flags & L4X_FDX_SRV_FACTORY_HAS_FILTERPATH) {
client->filterpath_len = data->filterpath_len;
if (!data->filterpath[client->filterpath_len - 1])
--client->filterpath_len;
client->filterpath = kstrndup(data->filterpath,
client->filterpath_len, GFP_ATOMIC);
if (!client->filterpath)
goto out_free_objmem_and_client_strings;
}
if (data->opt_flags & L4X_FDX_SRV_FACTORY_HAS_CLIENTNAME) {
client->capname = kstrndup(data->clientname,
data->clientname_len + 1, GFP_ATOMIC);
if (!client->capname)
goto out_free_objmem_and_client_strings;
client->capname[data->clientname_len] = 0;
}
if (data->opt_flags & L4X_FDX_SRV_FACTORY_HAS_FLAG_NOGROW)
client->flag_nogrow = 1;
spin_lock_init(&client->req_list_lock);
INIT_LIST_HEAD(&client->req_list);
init_waitqueue_head(&client->event);
INIT_WORK(&client->create_work, create_server);
client->srv_obj = L4XV_FN(l4fdx_srv_obj,
l4x_fdx_srv_create(l4x_cpu_thread_get_cap(0),
&b_ops, client, objmem,
client_cap));
queue_work(khelper_wq, &client->create_work);
client->cap = *client_cap;
INIT_WORK(&client->add_device_work, add_device);
queue_work(khelper_wq, &client->add_device_work);
return 0;
out_free_objmem_and_client_strings:
kfree(objmem);
kfree(client->basepath);
kfree(client->filterpath);
kfree(client->capname);
out_free_client:
kfree(client);
return ret;
}
static int __init dm_setup_parse_targets(char *str)
{
char *next = NULL;
size_t len = 0;
struct dm_setup_target **target = NULL;
/* Targets are defined as per the table format but with a
* comma as a newline separator. */
target = &dm_setup_args.target;
while (str && *str) {
*target = kzalloc(sizeof(struct dm_setup_target), GFP_KERNEL);
if (!*target) {
DMERR("failed to allocate memory for target %d",
dm_setup_args.target_count);
goto parse_fail;
}
dm_setup_args.target_count++;
(*target)->begin = simple_strtoull(str, &next, 10);
if (!next || *next != DM_FIELD_SEP) {
DMERR("failed to parse starting sector for target %d",
dm_setup_args.target_count - 1);
goto parse_fail;
}
str = skip_spaces(next + 1);
(*target)->length = simple_strtoull(str, &next, 10);
if (!next || *next != DM_FIELD_SEP) {
DMERR("failed to parse length for target %d",
dm_setup_args.target_count - 1);
goto parse_fail;
}
str = skip_spaces(next + 1);
len = get_dm_option(str, &next, DM_FIELD_SEP);
if (!len ||
!((*target)->type = kstrndup(str, len, GFP_KERNEL))) {
DMERR("failed to parse type for target %d",
dm_setup_args.target_count - 1);
goto parse_fail;
}
str = skip_spaces(next);
len = get_dm_option(str, &next, DM_LINE_SEP);
if (!len ||
!((*target)->params = kstrndup(str, len, GFP_KERNEL))) {
DMERR("failed to parse params for target %d",
dm_setup_args.target_count - 1);
goto parse_fail;
}
str = skip_spaces(next);
/* Before moving on, walk through the copied target and
* attempt to replace all /dev/xxx with the major:minor number.
* It may not be possible to resolve them traditionally at
* boot-time. */
dm_substitute_devices((*target)->params, len);
target = &((*target)->next);
}
DMDEBUG("parsed %d targets", dm_setup_args.target_count);
return 0;
parse_fail:
return 1;
}
ssize_t nd_namespace_store(struct device *dev,
struct nd_namespace_common **_ndns, const char *buf,
size_t len)
{
struct nd_namespace_common *ndns;
struct device *found;
char *name;
if (dev->driver) {
dev_dbg(dev, "%s: -EBUSY\n", __func__);
return -EBUSY;
}
name = kstrndup(buf, len, GFP_KERNEL);
if (!name)
return -ENOMEM;
strim(name);
if (strncmp(name, "namespace", 9) == 0 || strcmp(name, "") == 0)
/* pass */;
else {
len = -EINVAL;
goto out;
}
ndns = *_ndns;
if (strcmp(name, "") == 0) {
nd_detach_and_reset(dev, _ndns);
goto out;
} else if (ndns) {
dev_dbg(dev, "namespace already set to: %s\n",
dev_name(&ndns->dev));
len = -EBUSY;
goto out;
}
found = device_find_child(dev->parent, name, namespace_match);
if (!found) {
dev_dbg(dev, "'%s' not found under %s\n", name,
dev_name(dev->parent));
len = -ENODEV;
goto out;
}
ndns = to_ndns(found);
if (__nvdimm_namespace_capacity(ndns) < SZ_16M) {
dev_dbg(dev, "%s too small to host\n", name);
len = -ENXIO;
goto out_attach;
}
WARN_ON_ONCE(!is_nvdimm_bus_locked(dev));
if (!nd_attach_ndns(dev, ndns, _ndns)) {
dev_dbg(dev, "%s already claimed\n",
dev_name(&ndns->dev));
len = -EBUSY;
}
out_attach:
put_device(&ndns->dev); /* from device_find_child */
out:
kfree(name);
return len;
}
/*
* This function fills in xfs_mount_t fields based on mount args.
* Note: the superblock has _not_ yet been read in.
*
* Note that this function leaks the various device name allocations on
* failure. The caller takes care of them.
*/
STATIC int
xfs_parseargs(
struct xfs_mount *mp,
char *options)
{
struct super_block *sb = mp->m_super;
char *this_char, *value;
int dsunit = 0;
int dswidth = 0;
int iosize = 0;
__uint8_t iosizelog = 0;
/*
* set up the mount name first so all the errors will refer to the
* correct device.
*/
mp->m_fsname = kstrndup(sb->s_id, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_fsname)
return -ENOMEM;
mp->m_fsname_len = strlen(mp->m_fsname) + 1;
/*
* Copy binary VFS mount flags we are interested in.
*/
if (sb->s_flags & MS_RDONLY)
mp->m_flags |= XFS_MOUNT_RDONLY;
if (sb->s_flags & MS_DIRSYNC)
mp->m_flags |= XFS_MOUNT_DIRSYNC;
if (sb->s_flags & MS_SYNCHRONOUS)
mp->m_flags |= XFS_MOUNT_WSYNC;
/*
* Set some default flags that could be cleared by the mount option
* parsing.
*/
mp->m_flags |= XFS_MOUNT_BARRIER;
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
/*
* These can be overridden by the mount option parsing.
*/
mp->m_logbufs = -1;
mp->m_logbsize = -1;
if (!options)
goto done;
while ((this_char = strsep(&options, ",")) != NULL) {
if (!*this_char)
continue;
if ((value = strchr(this_char, '=')) != NULL)
*value++ = 0;
if (!strcmp(this_char, MNTOPT_LOGBUFS)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
if (kstrtoint(value, 10, &mp->m_logbufs))
return -EINVAL;
} else if (!strcmp(this_char, MNTOPT_LOGBSIZE)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
if (suffix_kstrtoint(value, 10, &mp->m_logbsize))
return -EINVAL;
} else if (!strcmp(this_char, MNTOPT_LOGDEV)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
mp->m_logname = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_logname)
return -ENOMEM;
} else if (!strcmp(this_char, MNTOPT_MTPT)) {
xfs_warn(mp, "%s option not allowed on this system",
this_char);
return -EINVAL;
} else if (!strcmp(this_char, MNTOPT_RTDEV)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
mp->m_rtname = kstrndup(value, MAXNAMELEN, GFP_KERNEL);
if (!mp->m_rtname)
return -ENOMEM;
} else if (!strcmp(this_char, MNTOPT_BIOSIZE)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
if (kstrtoint(value, 10, &iosize))
return -EINVAL;
iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_ALLOCSIZE)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
if (suffix_kstrtoint(value, 10, &iosize))
return -EINVAL;
iosizelog = ffs(iosize) - 1;
} else if (!strcmp(this_char, MNTOPT_GRPID) ||
!strcmp(this_char, MNTOPT_BSDGROUPS)) {
mp->m_flags |= XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
!strcmp(this_char, MNTOPT_SYSVGROUPS)) {
mp->m_flags &= ~XFS_MOUNT_GRPID;
} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
mp->m_flags |= XFS_MOUNT_WSYNC;
} else if (!strcmp(this_char, MNTOPT_NORECOVERY)) {
mp->m_flags |= XFS_MOUNT_NORECOVERY;
} else if (!strcmp(this_char, MNTOPT_NOALIGN)) {
mp->m_flags |= XFS_MOUNT_NOALIGN;
} else if (!strcmp(this_char, MNTOPT_SWALLOC)) {
mp->m_flags |= XFS_MOUNT_SWALLOC;
} else if (!strcmp(this_char, MNTOPT_SUNIT)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
if (kstrtoint(value, 10, &dsunit))
return -EINVAL;
} else if (!strcmp(this_char, MNTOPT_SWIDTH)) {
if (!value || !*value) {
xfs_warn(mp, "%s option requires an argument",
this_char);
return -EINVAL;
}
if (kstrtoint(value, 10, &dswidth))
return -EINVAL;
} else if (!strcmp(this_char, MNTOPT_32BITINODE)) {
mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
} else if (!strcmp(this_char, MNTOPT_64BITINODE)) {
mp->m_flags &= ~XFS_MOUNT_SMALL_INUMS;
} else if (!strcmp(this_char, MNTOPT_NOUUID)) {
mp->m_flags |= XFS_MOUNT_NOUUID;
} else if (!strcmp(this_char, MNTOPT_BARRIER)) {
mp->m_flags |= XFS_MOUNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_NOBARRIER)) {
mp->m_flags &= ~XFS_MOUNT_BARRIER;
} else if (!strcmp(this_char, MNTOPT_IKEEP)) {
mp->m_flags |= XFS_MOUNT_IKEEP;
} else if (!strcmp(this_char, MNTOPT_NOIKEEP)) {
mp->m_flags &= ~XFS_MOUNT_IKEEP;
} else if (!strcmp(this_char, MNTOPT_LARGEIO)) {
mp->m_flags &= ~XFS_MOUNT_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_NOLARGEIO)) {
mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
} else if (!strcmp(this_char, MNTOPT_ATTR2)) {
mp->m_flags |= XFS_MOUNT_ATTR2;
} else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
mp->m_flags &= ~XFS_MOUNT_ATTR2;
mp->m_flags |= XFS_MOUNT_NOATTR2;
} else if (!strcmp(this_char, MNTOPT_FILESTREAM)) {
mp->m_flags |= XFS_MOUNT_FILESTREAMS;
} else if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
mp->m_qflags &= ~XFS_ALL_QUOTA_ACCT;
mp->m_qflags &= ~XFS_ALL_QUOTA_ENFD;
mp->m_qflags &= ~XFS_ALL_QUOTA_ACTIVE;
} else if (!strcmp(this_char, MNTOPT_QUOTA) ||
!strcmp(this_char, MNTOPT_UQUOTA) ||
!strcmp(this_char, MNTOPT_USRQUOTA)) {
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE |
XFS_UQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
!strcmp(this_char, MNTOPT_UQUOTANOENF)) {
mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_UQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
!strcmp(this_char, MNTOPT_PRJQUOTA)) {
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
XFS_PQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_PQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
!strcmp(this_char, MNTOPT_GRPQUOTA)) {
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
XFS_GQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
mp->m_qflags &= ~XFS_GQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_DISCARD)) {
mp->m_flags |= XFS_MOUNT_DISCARD;
} else if (!strcmp(this_char, MNTOPT_NODISCARD)) {
mp->m_flags &= ~XFS_MOUNT_DISCARD;
} else {
xfs_warn(mp, "unknown mount option [%s].", this_char);
return -EINVAL;
}
}
/*
* no recovery flag requires a read-only mount
*/
if ((mp->m_flags & XFS_MOUNT_NORECOVERY) &&
!(mp->m_flags & XFS_MOUNT_RDONLY)) {
xfs_warn(mp, "no-recovery mounts must be read-only.");
return -EINVAL;
}
if ((mp->m_flags & XFS_MOUNT_NOALIGN) && (dsunit || dswidth)) {
xfs_warn(mp,
"sunit and swidth options incompatible with the noalign option");
return -EINVAL;
}
#ifndef CONFIG_XFS_QUOTA
if (XFS_IS_QUOTA_RUNNING(mp)) {
xfs_warn(mp, "quota support not available in this kernel.");
return -EINVAL;
}
#endif
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
xfs_warn(mp, "sunit and swidth must be specified together");
return -EINVAL;
}
if (dsunit && (dswidth % dsunit != 0)) {
xfs_warn(mp,
"stripe width (%d) must be a multiple of the stripe unit (%d)",
dswidth, dsunit);
return -EINVAL;
}
done:
if (dsunit && !(mp->m_flags & XFS_MOUNT_NOALIGN)) {
/*
* At this point the superblock has not been read
* in, therefore we do not know the block size.
* Before the mount call ends we will convert
* these to FSBs.
*/
mp->m_dalign = dsunit;
mp->m_swidth = dswidth;
}
if (mp->m_logbufs != -1 &&
mp->m_logbufs != 0 &&
(mp->m_logbufs < XLOG_MIN_ICLOGS ||
mp->m_logbufs > XLOG_MAX_ICLOGS)) {
xfs_warn(mp, "invalid logbufs value: %d [not %d-%d]",
mp->m_logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS);
return -EINVAL;
}
if (mp->m_logbsize != -1 &&
mp->m_logbsize != 0 &&
(mp->m_logbsize < XLOG_MIN_RECORD_BSIZE ||
mp->m_logbsize > XLOG_MAX_RECORD_BSIZE ||
!is_power_of_2(mp->m_logbsize))) {
xfs_warn(mp,
"invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]",
mp->m_logbsize);
return -EINVAL;
}
if (iosizelog) {
if (iosizelog > XFS_MAX_IO_LOG ||
iosizelog < XFS_MIN_IO_LOG) {
xfs_warn(mp, "invalid log iosize: %d [not %d-%d]",
iosizelog, XFS_MIN_IO_LOG,
XFS_MAX_IO_LOG);
return -EINVAL;
}
mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE;
mp->m_readio_log = iosizelog;
mp->m_writeio_log = iosizelog;
}
return 0;
}
static
int wimax_gnl_doit_msg_from_user(struct sk_buff *skb, struct genl_info *info)
{
int result, ifindex;
struct wimax_dev *wimax_dev;
struct device *dev;
struct nlmsghdr *nlh = info->nlhdr;
char *pipe_name;
void *msg_buf;
size_t msg_len;
might_sleep();
d_fnstart(3, NULL, "(skb %p info %p)\n", skb, info);
result = -ENODEV;
if (info->attrs[WIMAX_GNL_MSG_IFIDX] == NULL) {
printk(KERN_ERR "WIMAX_GNL_MSG_FROM_USER: can't find IFIDX "
"attribute\n");
goto error_no_wimax_dev;
}
ifindex = nla_get_u32(info->attrs[WIMAX_GNL_MSG_IFIDX]);
wimax_dev = wimax_dev_get_by_genl_info(info, ifindex);
if (wimax_dev == NULL)
goto error_no_wimax_dev;
dev = wimax_dev_to_dev(wimax_dev);
/* */
result = -EINVAL;
if (info->attrs[WIMAX_GNL_MSG_DATA] == NULL) {
dev_err(dev, "WIMAX_GNL_MSG_FROM_USER: can't find MSG_DATA "
"attribute\n");
goto error_no_data;
}
msg_buf = nla_data(info->attrs[WIMAX_GNL_MSG_DATA]);
msg_len = nla_len(info->attrs[WIMAX_GNL_MSG_DATA]);
if (info->attrs[WIMAX_GNL_MSG_PIPE_NAME] == NULL)
pipe_name = NULL;
else {
struct nlattr *attr = info->attrs[WIMAX_GNL_MSG_PIPE_NAME];
size_t attr_len = nla_len(attr);
/* */
result = -ENOMEM;
pipe_name = kstrndup(nla_data(attr), attr_len + 1, GFP_KERNEL);
if (pipe_name == NULL)
goto error_alloc;
pipe_name[attr_len] = 0;
}
mutex_lock(&wimax_dev->mutex);
result = wimax_dev_is_ready(wimax_dev);
if (result == -ENOMEDIUM)
result = 0;
if (result < 0)
goto error_not_ready;
result = -ENOSYS;
if (wimax_dev->op_msg_from_user == NULL)
goto error_noop;
d_printf(1, dev,
"CRX: nlmsghdr len %u type %u flags 0x%04x seq 0x%x pid %u\n",
nlh->nlmsg_len, nlh->nlmsg_type, nlh->nlmsg_flags,
nlh->nlmsg_seq, nlh->nlmsg_pid);
d_printf(1, dev, "CRX: wimax message %zu bytes\n", msg_len);
d_dump(2, dev, msg_buf, msg_len);
result = wimax_dev->op_msg_from_user(wimax_dev, pipe_name,
msg_buf, msg_len, info);
error_noop:
error_not_ready:
mutex_unlock(&wimax_dev->mutex);
error_alloc:
kfree(pipe_name);
error_no_data:
dev_put(wimax_dev->net_dev);
error_no_wimax_dev:
d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result);
return result;
}
