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getfilecon(3) [centos man page]

getfilecon(3)						     SELinux API documentation						     getfilecon(3)

getfilecon, fgetfilecon, lgetfilecon - get SELinux security context of a file SYNOPSIS
#include <selinux/selinux.h> int getfilecon(const char *path, security_context_t *con); int getfilecon_raw(const char *path, security_context_t *con); int lgetfilecon(const char *path, security_context_t *con); int lgetfilecon_raw(const char *path, security_context_t *con); int fgetfilecon(int fd, security_context_t *con); int fgetfilecon_raw(int fd, security_context_t *con); DESCRIPTION
getfilecon() retrieves the context associated with the given path in the file system, the length of the context is returned. lgetfilecon() is identical to getfilecon(), except in the case of a symbolic link, where the link itself is interrogated, not the file that it refers to. fgetfilecon() is identical to getfilecon(), only the open file pointed to by filedes (as returned by open(2)) is interrogated in place of path. getfilecon_raw(), lgetfilecon_raw() and fgetfilecon_raw() behave identically to their non-raw counterparts but do not perform context translation. The returned context should be freed with freecon(3) if non-NULL. RETURN VALUE
On success, a positive number is returned indicating the size of the extended attribute value. On failure, -1 is returned and errno is set appropriately. If the context does not exist, or the process has no access to this attribute, errno is set to ENODATA. If extended attributes are not supported by the filesystem, or are disabled, errno is set to ENOTSUP. The errors documented for the stat(2) system call are also applicable here. SEE ALSO
selinux(8), freecon(3), setfilecon(3), setfscreatecon(3) 1 January 2004 getfilecon(3)

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security_compute_av(3)					     SELinux API documentation					    security_compute_av(3)

security_compute_av, security_compute_av_flags, security_compute_create, security_compute_relabel, security_compute_member, security_com- pute_user, security_get_initial_context - query the SELinux policy database in the kernel. SYNOPSIS
#include <selinux/selinux.h> #include <selinux/flask.h> int security_compute_av(security_context_t scon, security_context_t tcon, security_class_t tclass, access_vector_t requested, struct av_decision *avd); int security_compute_av_flags(security_context_t scon, security_context_t tcon, security_class_t tclass, access_vector_t requested, struct av_decision *avd); int security_compute_create(security_context_t scon, security_context_t tcon, security_class_t tclass, security_context_t *newcon); int security_compute_relabel(security_context_t scon, security_context_t tcon, security_class_t tclass, security_context_t *newcon); int security_compute_member(security_context_t scon, security_context_t tcon, security_class_t tclass, security_context_t *newcon); int security_compute_user(security_context_t scon, const char *username, security_context_t **con); int security_get_initial_context(const char *name, security_context_t "con ); int selinux_check_access(const security_context_t scon, const security_context_t tcon, const char *class, const char *perm,void *audit- data); int selinux_check_passwd_access(access_vector_t requested); int checkPasswdAccess(access_vector_t requested); DESCRIPTION
security_compute_av queries whether the policy permits the source context scon to access the target context tcon via class tclass with the requested access vector. The decision is returned in avd. security_compute_av_flags is identical to security_compute_av but additionally sets the flags field of avd. Currently one flag is sup- ported: SELINUX_AVD_FLAGS_PERMISSIVE, which indicates the decision is computed on a permissive domain. security_compute_create is used to compute a context to use for labeling a new object in a particular class based on a SID pair. security_compute_relabel is used to compute the new context to use when relabeling an object, it is used in the source and the newrole source to determine the correct label for the tty at login time, but can be used for other things. security_compute_member is used to compute the context to use when labeling a polyinstantiated object instance. security_compute_user is used to determine the set of user contexts that can be reached from a source context. It is mainly used by get_ordered_context_list. security_get_initial_context is used to get the context of a kernel initial security identifier specified by name selinux_check_access is used to check if the source context has the access permission for the specified class on the target context. selinux_check_passwd_access is used to check for a permission in the passwd class. selinux_check_passwd_access uses getprevcon() for the source and target security contexts. checkPasswdAccess is a deprecated alias of the selinux_check_passwd_access function. RETURN VALUE
Returns zero on success or -1 on error. SEE ALSO
selinux(8), getcon(3), getfilecon(3), get_ordered_context_list(3) 1 January 2004 security_compute_av(3)
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