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but to avoid introducing spurious vertical space in the formatted
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Signed-off-by: Guillem Jover <guillem@debian.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
102 lines
2.5 KiB
Groff
102 lines
2.5 KiB
Groff
.TH "selinux_file_context_verify" "3" "08 March 2011" "SELinux API documentation"
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.SH "NAME"
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selinux_file_context_verify \- Compare the SELinux security context on disk to the default security context required by the policy file contexts file
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.
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.SH "SYNOPSIS"
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.B #include <selinux/selinux.h>
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.sp
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.BI "int selinux_file_context_verify(const char *" path ", mode_t " mode ");"
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.
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.SH "DESCRIPTION"
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.BR selinux_file_context_verify ()
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compares the context of the specified
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.I path
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that is held on disk (in the extended attribute), to the system default entry held in the file contexts series of files.
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.sp
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The
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.I mode
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may be zero.
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.sp
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Note that the two contexts are compared for "significant" differences (i.e. the user component of the contexts are ignored) as shown in the
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.B EXAMPLE
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section.
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.
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.SH "RETURN VALUE"
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If the contexts significantly match, 1 (one) is returned.
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.sp
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If the contexts do not match 0 (zero) is returned and
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.I errno
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is set to either
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.B ENOENT
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or
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.B EINVAL
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for the reasons listed in the
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.B ERRORS
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section, or if
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.I errno
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= 0 then the contexts did not match.
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.sp
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On failure \-1 is returned and
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.I errno
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set appropriately.
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.
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.SH "ERRORS"
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.TP
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.B ENOTSUP
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if extended attributes are not supported by the file system.
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.TP
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.B ENOENT
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if there is no entry in the file contexts series of files or
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.I path
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does not exist.
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.TP
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.B EINVAL
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if the entry in the file contexts series of files or
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.I path
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are invalid, or the returned context fails validation.
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.TP
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.B ENOMEM
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if attempt to allocate memory failed.
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.
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.SH "FILES"
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The following configuration files (the file contexts series of files) supporting the active policy will be used (should they exist) to determine the
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.I path
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default context:
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.sp
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.RS
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.I contexts/files/file_contexts
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- This file must exist.
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.sp
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.I contexts/files/file_contexts.local
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- If exists has local customizations.
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.sp
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.I contexts/files/file_contexts.homedirs
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- If exists has users home directory customizations.
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.sp
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.I contexts/files/file_contexts.subs
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- If exists has substitutions that are then applied to the 'in memory' version of the file contexts files.
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.RE
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.
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.SH "EXAMPLE"
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If the files context is:
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.RS
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unconfined_u:object_r:admin_home_t:s0
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.RE
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.sp
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and the default context defined in the file contexts file is:
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.RS
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system_u:object_r:admin_home_t:s0
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.RE
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.sp
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then the actual strings compared are:
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.RS
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:object_r:admin_home_t:s0 and :object_r:admin_home_t:s0
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.RE
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.sp
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Therefore they will match and
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.BR selinux_file_context_verify ()
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will return 1.
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.
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.SH "SEE ALSO"
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.BR selinux "(8)"
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