37 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm);
38 void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm);
39 int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm);
40 void __scm_destroy(struct scm_cookie *scm);
44 static __inline__ void unix_get_peersec_dgram(struct socket *sock, struct scm_cookie *scm)  in unix_get_peersec_dgram()  argument
46 	security_socket_getpeersec_dgram(sock, NULL, &scm->secid);  in unix_get_peersec_dgram()
49 static __inline__ void unix_get_peersec_dgram(struct socket *sock, struct scm_cookie *scm)  in unix_get_peersec_dgram()  argument
53 static __inline__ void scm_set_cred(struct scm_cookie *scm,  in scm_set_cred()  argument
56 	scm->pid  = get_pid(pid);  in scm_set_cred()
57 	scm->creds.pid = pid_vnr(pid);  in scm_set_cred()
58 	scm->creds.uid = uid;  in scm_set_cred()
59 	scm->creds.gid = gid;  in scm_set_cred()
62 static __inline__ void scm_destroy_cred(struct scm_cookie *scm)  in scm_destroy_cred()  argument
64 	put_pid(scm->pid);  in scm_destroy_cred()
65 	scm->pid  = NULL;  in scm_destroy_cred()
68 static __inline__ void scm_destroy(struct scm_cookie *scm)  in scm_destroy()  argument
70 	scm_destroy_cred(scm);  in scm_destroy()
71 	if (scm->fp)  in scm_destroy()
72 		__scm_destroy(scm);  in scm_destroy()
76 			       struct scm_cookie *scm, bool forcecreds)  in scm_send()  argument
78 	memset(scm, 0, sizeof(*scm));  in scm_send()
79 	scm->creds.uid = INVALID_UID;  in scm_send()
80 	scm->creds.gid = INVALID_GID;  in scm_send()
82 		scm_set_cred(scm, task_tgid(current), current_uid(), current_gid());  in scm_send()
83 	unix_get_peersec_dgram(sock, scm);  in scm_send()
86 	return __scm_send(sock, msg, scm);  in scm_send()
90 static inline void scm_passec(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm)  in scm_passec()  argument
97 		err = security_secid_to_secctx(scm->secid, &secdata, &seclen);  in scm_passec()
106 static inline void scm_passec(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm)  in scm_passec()  argument
111 				struct scm_cookie *scm, int flags)  in scm_recv()  argument
114 		if (test_bit(SOCK_PASSCRED, &sock->flags) || scm->fp)  in scm_recv()
116 		scm_destroy(scm);  in scm_recv()
123 			.pid = scm->creds.pid,  in scm_recv()
124 			.uid = from_kuid_munged(current_ns, scm->creds.uid),  in scm_recv()
125 			.gid = from_kgid_munged(current_ns, scm->creds.gid),  in scm_recv()
130 	scm_destroy_cred(scm);  in scm_recv()
132 	scm_passec(sock, msg, scm);  in scm_recv()
134 	if (!scm->fp)  in scm_recv()
137 	scm_detach_fds(msg, scm);  in scm_recv()