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29 * @(#)ucred.h 8.4 (Berkeley) 1/9/95
36 #include <bsm/audit.h>
43 * Please do not inspect cr_uid directly to determine superuserness. The
44 * priv(9) interface should be used to check for privilege.
46 #if defined(_KERNEL) || defined(_WANT_UCRED)
48 u_int cr_ref; /* reference count */
49 #define cr_startcopy cr_uid
50 uid_t cr_uid; /* effective user id */
51 uid_t cr_ruid; /* real user id */
52 uid_t cr_svuid; /* saved user id */
53 int cr_ngroups; /* number of groups */
54 gid_t cr_rgid; /* real group id */
55 gid_t cr_svgid; /* saved group id */
56 struct uidinfo *cr_uidinfo; /* per euid resource consumption */
57 struct uidinfo *cr_ruidinfo; /* per ruid resource consumption */
58 struct prison *cr_prison; /* jail(2) */
59 struct loginclass *cr_loginclass; /* login class */
60 u_int cr_flags; /* credential flags */
61 void *cr_pspare2[2]; /* general use 2 */
62 #define cr_endcopy cr_label
63 struct label *cr_label; /* MAC label */
64 struct auditinfo_addr cr_audit; /* Audit properties. */
65 gid_t *cr_groups; /* groups */
66 int cr_agroups; /* Available groups */
68 #define NOCRED ((struct ucred *)0) /* no credential available */
69 #define FSCRED ((struct ucred *)-1) /* filesystem credential */
70 #endif /* _KERNEL || _WANT_UCRED */
77 #define CRED_FLAG_CAPMODE 0x00000001 /* In capability mode. */
80 * This is the external representation of struct ucred.
83 u_int cr_version; /* structure layout version */
84 uid_t cr_uid; /* effective user id */
85 short cr_ngroups; /* number of groups */
86 gid_t cr_groups[XU_NGROUPS]; /* groups */
87 void *_cr_unused1; /* compatibility with old ucred */
89 #define XUCRED_VERSION 0
91 /* This can be used for both ucred and xucred structures. */
92 #define cr_gid cr_groups[0]
98 void change_egid(struct ucred *newcred, gid_t egid);
99 void change_euid(struct ucred *newcred, struct uidinfo *euip);
100 void change_rgid(struct ucred *newcred, gid_t rgid);
101 void change_ruid(struct ucred *newcred, struct uidinfo *ruip);
102 void change_svgid(struct ucred *newcred, gid_t svgid);
103 void change_svuid(struct ucred *newcred, uid_t svuid);
104 void crcopy(struct ucred *dest, struct ucred *src);
105 struct ucred *crcopysafe(struct proc *p, struct ucred *cr);
106 struct ucred *crdup(struct ucred *cr);
107 void crextend(struct ucred *cr, int n);
108 void cred_update_thread(struct thread *td);
109 void crfree(struct ucred *cr);
110 struct ucred *crget(void);
111 struct ucred *crhold(struct ucred *cr);
112 int crshared(struct ucred *cr);
113 void cru2x(struct ucred *cr, struct xucred *xcr);
114 void crsetgroups(struct ucred *cr, int n, gid_t *groups);
115 int groupmember(gid_t gid, struct ucred *cred);
118 #endif /* !_SYS_UCRED_H_ */