security_compute_av_flags_raw(3)

1security_compute_av(3)     SELinux API documentation    security_compute_av(3)
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3
4

NAME

6       security_compute_av,  security_compute_av_flags,  security_compute_cre‐
7       ate,  security_compute_create_name,   security_compute_relabel,   secu‐
8       rity_compute_member,  security_compute_user,  security_get_initial_con‐
9       text - query the SELinux policy database in the kernel
10

SYNOPSIS

12       #include <selinux/selinux.h>
13
14       int security_compute_av(char *  scon,  char  *  tcon,  security_class_t
15       tclass, access_vector_t requested, struct av_decision *avd);
16
17       int  security_compute_av_raw(char * scon, char * tcon, security_class_t
18       tclass, access_vector_t requested, struct av_decision *avd);
19
20       int  security_compute_av_flags(char  *  scon,  char   *   tcon,   secu‐
21       rity_class_t  tclass,  access_vector_t  requested,  struct  av_decision
22       *avd);
23
24       int security_compute_av_flags_raw(char  *  scon,  char  *  tcon,  secu‐
25       rity_class_t  tclass,  access_vector_t  requested,  struct  av_decision
26       *avd);
27
28       int security_compute_create(char * scon, char * tcon,  security_class_t
29       tclass, char **newcon);
30
31       int   security_compute_create_raw(char  *  scon,  char  *  tcon,  secu‐
32       rity_class_t tclass, char **newcon);
33
34       int  security_compute_create_name(char  *  scon,  char  *  tcon,  secu‐
35       rity_class_t tclass, const char *objname, char **newcon);
36
37       int  security_compute_create_name_raw(char  *  scon, char * tcon, secu‐
38       rity_class_t tclass, const char *objname, char **newcon);
39
40       int security_compute_relabel(char * scon, char * tcon, security_class_t
41       tclass, char **newcon);
42
43       int  security_compute_relabel_raw(char  *  scon,  char  *  tcon,  secu‐
44       rity_class_t tclass, char **newcon);
45
46       int security_compute_member(char * scon, char * tcon,  security_class_t
47       tclass, char **newcon);
48
49       int   security_compute_member_raw(char  *  scon,  char  *  tcon,  secu‐
50       rity_class_t tclass, char **newcon);
51
52       int security_compute_user(char  *  scon,  const  char  *username,  char
53       ***con);
54
55       int  security_compute_user_raw(char  * scon, const char *username, char
56       ***con);
57
58       int security_get_initial_context(const char *name, char **con);
59
60       int security_get_initial_context_raw(const char *name, char **con);
61
62       int selinux_check_access(const char * scon, const char  *  tcon,  const
63       char *class, const char *perm, void *auditdata);
64
65       int selinux_check_passwd_access(access_vector_t requested);
66
67       int checkPasswdAccess(access_vector_t requested);
68

DESCRIPTION

70       security_compute_av()  queries  whether  the  policy permits the source
71       context scon to access the target context tcon via  class  tclass  with
72       the requested access vector.  The decision is returned in avd.
73
74       security_compute_av_flags()  is  identical  to  security_compute_av but
75       additionally sets the flags field of avd.  Currently one flag  is  sup‐
76       ported:  SELINUX_AVD_FLAGS_PERMISSIVE,  which indicates the decision is
77       computed on a permissive domain.
78
79       security_compute_create() is used to  compute  a  context  to  use  for
80       labeling a new object in a particular class based on a SID pair.
81
82       security_compute_create_name()          is         identical         to
83       security_compute_create() but also takes name of the new object in cre‐
84       ation as an argument.  When TYPE_TRANSITION rule on the given class and
85       a SID pair has object name extension, we shall be able to obtain a cor‐
86       rect  newcon according to the security policy. Note that this interface
87       is only supported on the linux 2.6.40 or later.  In the  older  kernel,
88       the object name will be simply ignored.
89
90       security_compute_relabel()  is  used  to compute the new context to use
91       when relabeling an object, it is used in the pam_selinux.so source  and
92       the  newrole source to determine the correct label for the tty at login
93       time, but can be used for other things.
94
95       security_compute_member() is used to compute the context  to  use  when
96       labeling a polyinstantiated object instance.
97
98       security_compute_user()  is  used to determine the set of user contexts
99       that can be reached from  a  source  context.  It  is  mainly  used  by
100       get_ordered_context_list().
101
102       security_get_initial_context()  is  used to get the context of a kernel
103       initial security identifier specified by name
104
105       security_compute_av_raw(),             security_compute_av_flags_raw(),
106       security_compute_create_raw(),      security_compute_create_name_raw(),
107       security_compute_relabel_raw(),          security_compute_member_raw(),
108       security_compute_user_raw()    and   security_get_initial_context_raw()
109       behave identically to their non-raw counterparts  but  do  not  perform
110       context translation.
111
112       selinux_check_access()  is  used to check if the source context has the
113       access permission for the specified class on the target context.
114
115       selinux_check_passwd_access() is used to check for a permission in  the
116       passwd  class.  selinux_check_passwd_access() uses getprevcon() for the
117       source and target security contexts.
118
119       checkPasswdAccess()    is     a     deprecated     alias     of     the
120       selinux_check_passwd_access() function.
121

RETURN VALUE

123       Returns zero on success or -1 on error.
124

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

SEE ALSO