108 #include <net/scm.h>
120 #include "scm.h"
188 static void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_get_secdata()  argument
190 	UNIXCB(skb).secid = scm->secid;  in unix_get_secdata()
193 static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_set_secdata()  argument
195 	scm->secid = UNIXCB(skb).secid;  in unix_set_secdata()
198 static inline bool unix_secdata_eq(struct scm_cookie *scm, struct sk_buff *skb)  in unix_secdata_eq()  argument
200 	return (scm->secid == UNIXCB(skb).secid);  in unix_secdata_eq()
203 static inline void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_get_secdata()  argument
206 static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_set_secdata()  argument
209 static inline bool unix_secdata_eq(struct scm_cookie *scm, struct sk_buff *skb)  in unix_secdata_eq()  argument
1755 static void unix_peek_fds(struct scm_cookie *scm, struct sk_buff *skb)  in unix_peek_fds()  argument
1757 	scm->fp = scm_fp_dup(UNIXCB(skb).fp);  in unix_peek_fds()
1802 static int unix_scm_to_skb(struct scm_cookie *scm, struct sk_buff *skb, bool send_fds)  in unix_scm_to_skb()  argument
1806 	UNIXCB(skb).pid  = get_pid(scm->pid);  in unix_scm_to_skb()
1807 	UNIXCB(skb).uid = scm->creds.uid;  in unix_scm_to_skb()
1808 	UNIXCB(skb).gid = scm->creds.gid;  in unix_scm_to_skb()
1810 	unix_get_secdata(scm, skb);  in unix_scm_to_skb()
1811 	if (scm->fp && send_fds)  in unix_scm_to_skb()
1812 		err = unix_attach_fds(scm, skb);  in unix_scm_to_skb()
1845 			    struct scm_cookie *scm)  in unix_skb_scm_eq()  argument
1847 	return UNIXCB(skb).pid == scm->pid &&  in unix_skb_scm_eq()
1848 	       uid_eq(UNIXCB(skb).uid, scm->creds.uid) &&  in unix_skb_scm_eq()
1849 	       gid_eq(UNIXCB(skb).gid, scm->creds.gid) &&  in unix_skb_scm_eq()
1850 	       unix_secdata_eq(scm, skb);  in unix_skb_scm_eq()
1881 	struct scm_cookie scm;  in unix_dgram_sendmsg()  local
1889 	err = scm_send(sock, msg, &scm, false);  in unix_dgram_sendmsg()
1936 	err = unix_scm_to_skb(&scm, skb, true);  in unix_dgram_sendmsg()
2072 	scm_destroy(&scm);  in unix_dgram_sendmsg()
2084 	scm_destroy(&scm);  in unix_dgram_sendmsg()
2095 		     struct scm_cookie *scm, bool fds_sent)  in queue_oob()  argument
2106 	err = unix_scm_to_skb(scm, skb, !fds_sent);  in queue_oob()
2156 	struct scm_cookie scm;  in unix_stream_sendmsg()  local
2161 	err = scm_send(sock, msg, &scm, false);  in unix_stream_sendmsg()
2214 		err = unix_scm_to_skb(&scm, skb, !fds_sent);  in unix_stream_sendmsg()
2258 		err = queue_oob(sock, msg, other, &scm, fds_sent);  in unix_stream_sendmsg()
2265 	scm_destroy(&scm);  in unix_stream_sendmsg()
2277 	scm_destroy(&scm);  in unix_stream_sendmsg()
2324 	struct scm_cookie scm;  in __unix_dgram_recvmsg()  local
2388 	memset(&scm, 0, sizeof(scm));  in __unix_dgram_recvmsg()
2390 	scm_set_cred(&scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);  in __unix_dgram_recvmsg()
2391 	unix_set_secdata(&scm, skb);  in __unix_dgram_recvmsg()
2395 			unix_detach_fds(&scm, skb);  in __unix_dgram_recvmsg()
2415 			unix_peek_fds(&scm, skb);  in __unix_dgram_recvmsg()
2419 	scm_recv_unix(sock, msg, &scm, flags);  in __unix_dgram_recvmsg()
2653 	struct scm_cookie scm;  in unix_stream_read_generic()  local
2684 	memset(&scm, 0, sizeof(scm));  in unix_stream_read_generic()
2744 				scm_destroy(&scm);  in unix_stream_read_generic()
2768 			if (!unix_skb_scm_eq(skb, &scm))  in unix_stream_read_generic()
2773 			scm_set_cred(&scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);  in unix_stream_read_generic()
2774 			unix_set_secdata(&scm, skb);  in unix_stream_read_generic()
2820 				unix_detach_fds(&scm, skb);  in unix_stream_read_generic()
2829 			if (scm.fp)  in unix_stream_read_generic()
2835 				unix_peek_fds(&scm, skb);  in unix_stream_read_generic()
2856 		scm_recv_unix(sock, state->msg, &scm, flags);  in unix_stream_read_generic()
2858 		scm_destroy(&scm);  in unix_stream_read_generic()