52 void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm);
53 void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm);
54 int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm);
55 void __scm_destroy(struct scm_cookie *scm);
59 static __inline__ void unix_get_peersec_dgram(struct socket *sock, struct scm_cookie *scm)  in unix_get_peersec_dgram()  argument
61 	security_socket_getpeersec_dgram(sock, NULL, &scm->secid);  in unix_get_peersec_dgram()
64 static __inline__ void unix_get_peersec_dgram(struct socket *sock, struct scm_cookie *scm)  in unix_get_peersec_dgram()  argument
68 static __inline__ void scm_set_cred(struct scm_cookie *scm,  in scm_set_cred()  argument
71 	scm->pid  = get_pid(pid);  in scm_set_cred()
72 	scm->creds.pid = pid_vnr(pid);  in scm_set_cred()
73 	scm->creds.uid = uid;  in scm_set_cred()
74 	scm->creds.gid = gid;  in scm_set_cred()
77 static __inline__ void scm_destroy_cred(struct scm_cookie *scm)  in scm_destroy_cred()  argument
79 	put_pid(scm->pid);  in scm_destroy_cred()
80 	scm->pid  = NULL;  in scm_destroy_cred()
83 static __inline__ void scm_destroy(struct scm_cookie *scm)  in scm_destroy()  argument
85 	scm_destroy_cred(scm);  in scm_destroy()
86 	if (scm->fp)  in scm_destroy()
87 		__scm_destroy(scm);  in scm_destroy()
91 			       struct scm_cookie *scm, bool forcecreds)  in scm_send()  argument
93 	memset(scm, 0, sizeof(*scm));  in scm_send()
94 	scm->creds.uid = INVALID_UID;  in scm_send()
95 	scm->creds.gid = INVALID_GID;  in scm_send()
97 		scm_set_cred(scm, task_tgid(current), current_uid(), current_gid());  in scm_send()
98 	unix_get_peersec_dgram(sock, scm);  in scm_send()
101 	return __scm_send(sock, msg, scm);  in scm_send()
105 static inline void scm_passec(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm)  in scm_passec()  argument
112 		err = security_secid_to_secctx(scm->secid, &secdata, &seclen);  in scm_passec()
126 static inline void scm_passec(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm)  in scm_passec()  argument
135 static __inline__ void scm_pidfd_recv(struct msghdr *msg, struct scm_cookie *scm)  in scm_pidfd_recv()  argument
153 	if (!scm->pid)  in scm_pidfd_recv()
156 	pidfd = pidfd_prepare(scm->pid, 0, &pidfd_file);  in scm_pidfd_recv()
172 				     struct scm_cookie *scm, int flags)  in __scm_recv_common()  argument
177 		    scm->fp || scm_has_secdata(sock))  in __scm_recv_common()
179 		scm_destroy(scm);  in __scm_recv_common()
186 			.pid = scm->creds.pid,  in __scm_recv_common()
187 			.uid = from_kuid_munged(current_ns, scm->creds.uid),  in __scm_recv_common()
188 			.gid = from_kgid_munged(current_ns, scm->creds.gid),  in __scm_recv_common()
193 	scm_passec(sock, msg, scm);  in __scm_recv_common()
195 	if (scm->fp)  in __scm_recv_common()
196 		scm_detach_fds(msg, scm);  in __scm_recv_common()
202 			    struct scm_cookie *scm, int flags)  in scm_recv()  argument
204 	if (!__scm_recv_common(sock, msg, scm, flags))  in scm_recv()
207 	scm_destroy_cred(scm);  in scm_recv()
211 				 struct scm_cookie *scm, int flags)  in scm_recv_unix()  argument
213 	if (!__scm_recv_common(sock, msg, scm, flags))  in scm_recv_unix()
217 		scm_pidfd_recv(msg, scm);  in scm_recv_unix()
219 	scm_destroy_cred(scm);  in scm_recv_unix()