本文整理汇总了C++中ecryptfs_file_to_lower函数的典型用法代码示例。如果您正苦于以下问题：C++ ecryptfs_file_to_lower函数的具体用法？C++ ecryptfs_file_to_lower怎么用？C++ ecryptfs_file_to_lower使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了ecryptfs_file_to_lower函数的16个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: ecryptfs_fsync
static int
ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
int rc;
rc = filemap_write_and_wait(file->f_mapping);
if (rc)
return rc;
return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
}
开发者ID:StarKissed，项目名称:Note-4-AEL-Kernel，代码行数:11，代码来源:file.c
示例2: ecryptfs_flush
static int ecryptfs_flush(struct file *file, fl_owner_t td)
{
struct file *lower_file = ecryptfs_file_to_lower(file);
if (lower_file->f_op && lower_file->f_op->flush) {
filemap_write_and_wait(file->f_mapping);
return lower_file->f_op->flush(lower_file, td);
}
return 0;
}
开发者ID:StarKissed，项目名称:Note-4-AEL-Kernel，代码行数:11，代码来源:file.c
示例3: ecryptfs_fasync
static int ecryptfs_fasync(int fd, struct file *file, int flag)
{
int rc = 0;
struct file *lower_file = NULL;
lock_kernel();
lower_file = ecryptfs_file_to_lower(file);
if (lower_file->f_op && lower_file->f_op->fasync)
rc = lower_file->f_op->fasync(fd, lower_file, flag);
unlock_kernel();
return rc;
}
开发者ID:maraz，项目名称:linux-2.6，代码行数:12，代码来源:file.c
示例4: ecryptfs_flush
static int ecryptfs_flush(struct file *file, fl_owner_t td)
{
int rc = 0;
struct file *lower_file = NULL;
if (file) {
lower_file = ecryptfs_file_to_lower(file);
if (lower_file && lower_file->f_op && lower_file->f_op->flush)
rc = lower_file->f_op->flush(lower_file, td);
}
return rc;
}
开发者ID:AvidAmiri，项目名称:kgpu，代码行数:12，代码来源:file.c
示例5: ecryptfs_mmap
static int ecryptfs_mmap(struct file *file, struct vm_area_struct *vma)
{
struct file *lower_file = ecryptfs_file_to_lower(file);
/*
* Don't allow mmap on top of file systems that don't support it
* natively. If FILESYSTEM_MAX_STACK_DEPTH > 2 or ecryptfs
* allows recursive mounting, this will need to be extended.
*/
if (!lower_file->f_op->mmap)
return -ENODEV;
return generic_file_mmap(file, vma);
}
开发者ID:AICP，项目名称:kernel_moto_shamu，代码行数:12，代码来源:file.c
示例6: ecryptfs_compat_ioctl
static long
ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct file *lower_file = NULL;
long rc = -ENOIOCTLCMD;
if (ecryptfs_file_to_private(file))
lower_file = ecryptfs_file_to_lower(file);
if (lower_file && lower_file->f_op && lower_file->f_op->compat_ioctl)
rc = lower_file->f_op->compat_ioctl(lower_file, cmd, arg);
return rc;
}
开发者ID:AICP，项目名称:kernel_moto_shamu，代码行数:12，代码来源:file.c
示例7: ecryptfs_sendfile
static ssize_t ecryptfs_sendfile(struct file *file, loff_t * ppos,
size_t count, read_actor_t actor, void *target)
{
struct file *lower_file = NULL;
int rc = -EINVAL;
lower_file = ecryptfs_file_to_lower(file);
if (lower_file->f_op && lower_file->f_op->sendfile)
rc = lower_file->f_op->sendfile(lower_file, ppos, count,
actor, target);
return rc;
}
开发者ID:ivucica，项目名称:linux，代码行数:13，代码来源:file.c
示例8: ecryptfs_fsync
static int
ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
int rc = 0;
rc = generic_file_fsync(file, start, end, datasync);
if (rc)
goto out;
rc = vfs_fsync_range(ecryptfs_file_to_lower(file), start, end,
datasync);
out:
return rc;
}
开发者ID:kozmikkick，项目名称:eternityprj-kernel-endeavoru-128，代码行数:13，代码来源:file.c
示例9: ecryptfs_ioctl
static int
ecryptfs_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
int rc = 0;
struct file *lower_file = NULL;
if (ecryptfs_file_to_private(file))
lower_file = ecryptfs_file_to_lower(file);
if (lower_file && lower_file->f_op && lower_file->f_op->ioctl)
rc = lower_file->f_op->ioctl(ecryptfs_inode_to_lower(inode),
lower_file, cmd, arg);
else
rc = -ENOTTY;
return rc;
}
开发者ID:maraz，项目名称:linux-2.6，代码行数:16，代码来源:file.c
示例10: ecryptfs_release
static int ecryptfs_release(struct inode *inode, struct file *file)
{
struct file *lower_file = ecryptfs_file_to_lower(file);
struct ecryptfs_file_info *file_info = ecryptfs_file_to_private(file);
struct inode *lower_inode = ecryptfs_inode_to_lower(inode);
int rc;
if ((rc = ecryptfs_close_lower_file(lower_file))) {
printk(KERN_ERR "Error closing lower_file\n");
goto out;
}
inode->i_blocks = lower_inode->i_blocks;
kmem_cache_free(ecryptfs_file_info_cache, file_info);
out:
return rc;
}
开发者ID:ivucica，项目名称:linux，代码行数:16，代码来源:file.c
示例11: ecryptfs_fsync
static int
ecryptfs_fsync(struct file *file, struct dentry *dentry, int datasync)
{
struct file *lower_file = ecryptfs_file_to_lower(file);
struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
struct inode *lower_inode = lower_dentry->d_inode;
int rc = -EINVAL;
if (lower_inode->i_fop->fsync) {
mutex_lock(&lower_inode->i_mutex);
rc = lower_inode->i_fop->fsync(lower_file, lower_dentry,
datasync);
mutex_unlock(&lower_inode->i_mutex);
}
return rc;
}
开发者ID:maraz，项目名称:linux-2.6，代码行数:16，代码来源:file.c
示例12: ecryptfs_sync_write
ssize_t ecryptfs_sync_write(struct file *filp, const char __user *buf, \
size_t len, loff_t *ppos)
{
ssize_t result;
struct file *lower_file = NULL;
if (unlikely(filp->f_flags & O_DIRECT)) {
lower_file = ecryptfs_file_to_lower(filp);
lower_file->f_flags |= O_DIRECT;
lower_file->f_pos = filp->f_pos;
result = vfs_write(lower_file, buf, len, ppos);
filp->f_pos = lower_file->f_pos;
return result;
} else {
return do_sync_write(filp, buf, len, ppos);
}
}
开发者ID:dtrail，项目名称:JBX_Kernel，代码行数:17，代码来源:file.c
示例13: ecryptfs_compat_ioctl
static long
ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct file *lower_file = ecryptfs_file_to_lower(file);
long rc = -ENOIOCTLCMD;
if (!lower_file->f_op->compat_ioctl)
return rc;
switch (cmd) {
case FITRIM:
case FS_IOC32_GETFLAGS:
case FS_IOC32_SETFLAGS:
case FS_IOC32_GETVERSION:
case FS_IOC32_SETVERSION:
rc = lower_file->f_op->compat_ioctl(lower_file, cmd, arg);
fsstack_copy_attr_all(file_inode(file), file_inode(lower_file));
return rc;
default:
return rc;
}
}
开发者ID:daltenty，项目名称:kernel-ubuntu.trusty-vgt，代码行数:23，代码来源:file.c
示例14: ecryptfs_readdir
/**
* ecryptfs_readdir
* @file: The eCryptfs directory file
* @ctx: The actor to feed the entries to
*/
static int ecryptfs_readdir(struct file *file, struct dir_context *ctx)
{
int rc;
struct file *lower_file;
struct inode *inode = file_inode(file);
struct ecryptfs_getdents_callback buf = {
.ctx.actor = ecryptfs_filldir,
.caller = ctx,
.sb = inode->i_sb,
};
lower_file = ecryptfs_file_to_lower(file);
lower_file->f_pos = ctx->pos;
rc = iterate_dir(lower_file, &buf.ctx);
ctx->pos = buf.ctx.pos;
if (rc < 0)
goto out;
if (buf.filldir_called && !buf.entries_written)
goto out;
if (rc >= 0)
fsstack_copy_attr_atime(inode,
file_inode(lower_file));
out:
return rc;
}
struct kmem_cache *ecryptfs_file_info_cache;
static int read_or_initialize_metadata(struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
struct ecryptfs_crypt_stat *crypt_stat;
int rc;
crypt_stat = &ecryptfs_inode_to_private(inode)->crypt_stat;
mount_crypt_stat = &ecryptfs_superblock_to_private(
inode->i_sb)->mount_crypt_stat;
#ifdef CONFIG_WTL_ENCRYPTION_FILTER
if (crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED
&& crypt_stat->flags & ECRYPTFS_POLICY_APPLIED
&& crypt_stat->flags & ECRYPTFS_ENCRYPTED
&& !(crypt_stat->flags & ECRYPTFS_KEY_VALID)
&& !(crypt_stat->flags & ECRYPTFS_KEY_SET)
&& crypt_stat->flags & ECRYPTFS_I_SIZE_INITIALIZED) {
crypt_stat->flags |= ECRYPTFS_ENCRYPTED_OTHER_DEVICE;
}
mutex_lock(&crypt_stat->cs_mutex);
if ((mount_crypt_stat->flags & ECRYPTFS_ENABLE_NEW_PASSTHROUGH)
&& (crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
if (ecryptfs_read_metadata(dentry)) {
crypt_stat->flags &= ~(ECRYPTFS_I_SIZE_INITIALIZED
| ECRYPTFS_ENCRYPTED);
rc = 0;
goto out;
}
} else if ((mount_crypt_stat->flags & ECRYPTFS_ENABLE_FILTERING)
&& (crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
struct dentry *fp_dentry =
ecryptfs_inode_to_private(inode)->lower_file->f_dentry;
char filename[NAME_MAX+1] = {0};
if (fp_dentry->d_name.len <= NAME_MAX)
memcpy(filename, fp_dentry->d_name.name,
fp_dentry->d_name.len + 1);
if (is_file_name_match(mount_crypt_stat, fp_dentry)
|| is_file_ext_match(mount_crypt_stat, filename)) {
if (ecryptfs_read_metadata(dentry))
crypt_stat->flags &=
~(ECRYPTFS_I_SIZE_INITIALIZED
| ECRYPTFS_ENCRYPTED);
rc = 0;
goto out;
}
}
mutex_unlock(&crypt_stat->cs_mutex);
#endif
mutex_lock(&crypt_stat->cs_mutex);
if (crypt_stat->flags & ECRYPTFS_POLICY_APPLIED &&
crypt_stat->flags & ECRYPTFS_KEY_VALID) {
rc = 0;
goto out;
}
rc = ecryptfs_read_metadata(dentry);
if (!rc)
goto out;
#ifdef CONFIG_SDP
/*
* no passthrough/xattr for sensitive files
*/
if ((rc) && crypt_stat->flags & ECRYPTFS_DEK_IS_SENSITIVE)
//.........这里部分代码省略.........
开发者ID:GAXUSXX，项目名称:G935FGaXusKernel2，代码行数:101，代码来源:file.c
示例15: ecryptfs_compat_ioctl
static long
ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct file *lower_file = ecryptfs_file_to_lower(file);
long rc = -ENOIOCTLCMD;
#ifdef CONFIG_WTL_ENCRYPTION_FILTER
if (cmd == ECRYPTFS_IOCTL_GET_ATTRIBUTES) {
u32 __user *user_attr = (u32 __user *)arg;
u32 attr = 0;
char filename[NAME_MAX+1] = {0};
struct dentry *ecryptfs_dentry = file->f_path.dentry;
struct ecryptfs_mount_crypt_stat *mount_crypt_stat =
&ecryptfs_superblock_to_private(ecryptfs_dentry->d_sb)
->mount_crypt_stat;
struct inode *inode = ecryptfs_dentry->d_inode;
struct ecryptfs_crypt_stat *crypt_stat =
&ecryptfs_inode_to_private(inode)->crypt_stat;
struct dentry *fp_dentry =
ecryptfs_inode_to_private(inode)->lower_file->f_dentry;
if (fp_dentry->d_name.len <= NAME_MAX)
memcpy(filename, fp_dentry->d_name.name,
fp_dentry->d_name.len + 1);
mutex_lock(&crypt_stat->cs_mutex);
if ((crypt_stat->flags & ECRYPTFS_ENCRYPTED
|| crypt_stat->flags & ECRYPTFS_ENCRYPTED_OTHER_DEVICE)
|| ((mount_crypt_stat->flags
& ECRYPTFS_ENABLE_FILTERING)
&& (is_file_name_match
(mount_crypt_stat, fp_dentry)
|| is_file_ext_match
(mount_crypt_stat, filename)))) {
if (crypt_stat->flags & ECRYPTFS_KEY_VALID)
attr = ECRYPTFS_WAS_ENCRYPTED;
else
attr = ECRYPTFS_WAS_ENCRYPTED_OTHER_DEVICE;
}
mutex_unlock(&crypt_stat->cs_mutex);
put_user(attr, user_attr);
return 0;
}
#endif
#ifdef CONFIG_SDP
rc = ecryptfs_do_sdp_ioctl(file, cmd, arg);
if (rc != EOPNOTSUPP)
return rc;
#else
printk("%s CONFIG_SDP not enabled \n", __func__);
#endif
if (!lower_file->f_op->compat_ioctl)
return rc;
switch (cmd) {
case FITRIM:
case FS_IOC32_GETFLAGS:
case FS_IOC32_SETFLAGS:
case FS_IOC32_GETVERSION:
case FS_IOC32_SETVERSION:
rc = lower_file->f_op->compat_ioctl(lower_file, cmd, arg);
fsstack_copy_attr_all(file_inode(file), file_inode(lower_file));
return rc;
default:
return rc;
}
}
开发者ID:GAXUSXX，项目名称:G935FGaXusKernel2，代码行数:69，代码来源:file.c
示例16: ecryptfs_readdir
/**
* ecryptfs_readdir
* @file: The eCryptfs directory file
* @ctx: The actor to feed the entries to
*/
static int ecryptfs_readdir(struct file *file, struct dir_context *ctx)
{
int rc;
struct file *lower_file;
struct inode *inode = file_inode(file);
struct ecryptfs_getdents_callback buf = {
.ctx.actor = ecryptfs_filldir,
.caller = ctx,
.sb = inode->i_sb,
};
lower_file = ecryptfs_file_to_lower(file);
lower_file->f_pos = ctx->pos;
rc = iterate_dir(lower_file, &buf.ctx);
ctx->pos = buf.ctx.pos;
if (rc < 0)
goto out;
if (buf.filldir_called && !buf.entries_written)
goto out;
if (rc >= 0)
fsstack_copy_attr_atime(inode,
file_inode(lower_file));
out:
return rc;
}
struct kmem_cache *ecryptfs_file_info_cache;
static int read_or_initialize_metadata(struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
struct ecryptfs_crypt_stat *crypt_stat;
int rc;
crypt_stat = &ecryptfs_inode_to_private(inode)->crypt_stat;
mount_crypt_stat = &ecryptfs_superblock_to_private(
inode->i_sb)->mount_crypt_stat;
mutex_lock(&crypt_stat->cs_mutex);
if (crypt_stat->flags & ECRYPTFS_POLICY_APPLIED &&
crypt_stat->flags & ECRYPTFS_KEY_VALID) {
rc = 0;
goto out;
}
rc = ecryptfs_read_metadata(dentry);
if (!rc)
goto out;
if (mount_crypt_stat->flags & ECRYPTFS_PLAINTEXT_PASSTHROUGH_ENABLED) {
crypt_stat->flags &= ~(ECRYPTFS_I_SIZE_INITIALIZED
| ECRYPTFS_ENCRYPTED);
rc = 0;
goto out;
}
if (!(mount_crypt_stat->flags & ECRYPTFS_XATTR_METADATA_ENABLED) &&
!i_size_read(ecryptfs_inode_to_lower(inode))) {
rc = ecryptfs_initialize_file(dentry, inode);
if (!rc)
goto out;
}
rc = -EIO;
out:
mutex_unlock(&crypt_stat->cs_mutex);
return rc;
}
/**
* ecryptfs_open
* @inode: inode speciying file to open
* @file: Structure to return filled in
*
* Opens the file specified by inode.
*
* Returns zero on success; non-zero otherwise
*/
static int ecryptfs_open(struct inode *inode, struct file *file)
{
int rc = 0;
struct ecryptfs_crypt_stat *crypt_stat = NULL;
struct dentry *ecryptfs_dentry = file->f_path.dentry;
/* Private value of ecryptfs_dentry allocated in
* ecryptfs_lookup() */
struct ecryptfs_file_info *file_info;
/* Released in ecryptfs_release or end of function if failure */
file_info = kmem_cache_zalloc(ecryptfs_file_info_cache, GFP_KERNEL);
ecryptfs_set_file_private(file, file_info);
if (!file_info) {
ecryptfs_printk(KERN_ERR,
"Error attempting to allocate memory\n");
rc = -ENOMEM;
goto out;
//.........这里部分代码省略.........
开发者ID:daltenty，项目名称:kernel-ubuntu.trusty-vgt，代码行数:101，代码来源:file.c
注：本文中的ecryptfs_file_to_lower函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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