* SMP-safe */ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd) { int acc_mode, error = 0; struct inode *inode; struct dentry *dentry; struct dentry *dir; int count = 0; acc_mode = ACC_MODE(flag); /* * The simplest case - just a plain lookup...
2.用chattr命令防止系统中某个关键文件被修改 在Linux下,有些配置文件(passwd ,fatab)是不允许任何人修改的,为了防止被误删除或修改,可以设定该文件的“不可修改位(immutable)”,命令如下: # chattr +i /etc/fstab sudo 1.作用 sudo是一种以限制配置文件中的命令为基础,在有限时间内给用户使用,并且记录到日志...
# f2fs_io getflags /mnt/f2fs/vdc.file get a flag on /mnt/f2fs/vdc.file ret=0, flags=nocow(pinned),immutable # f2fs_io setflags noimmutable /mnt/f2fs/vdc.file get a flag on noimmutable ret=0, flags=800010 set a flag on /mnt/f2fs/vdc.file ret=0, flags=noimmutable # rm /mnt/...
If the filesystem user ID is changed from 0 to nonzero (see setfsuid(2)), then the following capabilities are cleared from the effective set: CAP_CHOWN, CAP_DAC_OVERRIDE, CAP_DAC_READ_SEARCH, CAP_FOWNER, CAP_FSETID, CAP_LINUX_IMMUTABLE (since Linux 2.6.30), CAP_MAC_OVERRIDE, and C...
* immutable after creation apart from the init_css_set during * subsystem registration (at boot time). */ struct cgroup_subsys_state *subsys[CGROUP_SUBSYS_COUNT]; //保存子系统状态的集合,初始化后不可修改 ... struct list_head tasks; //用来链接所有使用此css_set的task_struct集合 /* * List...
CONFIG_AUDIT_LOGINUID_IMMUTABLE 审计时使用固定的loginuid.在使用systemd之类的系统上应该开启(login服务由init进程负责重启),在使用SysVinit或Upstart之类的系统上应该关闭(login服务由系统管理员手动重启).OpenRC就是一个基于SysVinit的系统. IRQ subsystem IRQ(中断请求)子系统 Expose hardware/virtual IRQ mapping via ...
在Linux下,有些配置文件(passwd ,fatab)是不允许任何人修改的,为了防止被误删除或修改,可以设定该文件的“不可修改位(immutable)”,命令如下: # chattr +i /etc/fstab sudo 1.作用 sudo是一种以限制配置文件中的命令为基础,在有限时间内给用户使用,并且记录到日志中的命令,权限是所有用户。
It is still possible, that settingimmutableflag will be not possible, due to e.g."Operation not supported"issue and/or/etc/resolv.conffile will be changed anyway (network managers tend to overwrite this file). As a last resort, if theresolv.conffile contain"Dynamic resolv.conf(5) file fo...
Specifically, to add the immutable flag to the files in my Desktop/ subdirectory, I ran the following command: chattr +i /home/michael/Desktop/* Extend this to all users with the following command: chattr +i /home/*/Desktop/* Tip The Linux kernel has recently included support for chattr ...
Current: = cap_chown,cap_dac_override,cap_dac_read_search,cap_fowner,cap_fsetid,cap_kill,cap_setgid,cap_setuid,cap_setpcap,cap_linux_immutable,cap_net_bind_service,cap_net_broadcast,cap_net_admin,cap_net_raw,cap_ipc_lock,cap_ipc_owner,cap_sys_module,cap_sys_rawio,cap_sys_chroot,cap...