108 #include <net/scm.h>
121 #include "scm.h"
189 static void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_get_secdata()  argument
191 	UNIXCB(skb).secid = scm->secid;  in unix_get_secdata()
194 static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_set_secdata()  argument
196 	scm->secid = UNIXCB(skb).secid;  in unix_set_secdata()
199 static inline bool unix_secdata_eq(struct scm_cookie *scm, struct sk_buff *skb)  in unix_secdata_eq()  argument
201 	return (scm->secid == UNIXCB(skb).secid);  in unix_secdata_eq()
204 static inline void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_get_secdata()  argument
207 static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)  in unix_set_secdata()  argument
210 static inline bool unix_secdata_eq(struct scm_cookie *scm, struct sk_buff *skb)  in unix_secdata_eq()  argument
1778 static void unix_peek_fds(struct scm_cookie *scm, struct sk_buff *skb)  in unix_peek_fds()  argument
1780 	scm->fp = scm_fp_dup(UNIXCB(skb).fp);  in unix_peek_fds()
1825 static int unix_scm_to_skb(struct scm_cookie *scm, struct sk_buff *skb, bool send_fds)  in unix_scm_to_skb()  argument
1829 	UNIXCB(skb).pid  = get_pid(scm->pid);  in unix_scm_to_skb()
1830 	UNIXCB(skb).uid = scm->creds.uid;  in unix_scm_to_skb()
1831 	UNIXCB(skb).gid = scm->creds.gid;  in unix_scm_to_skb()
1833 	unix_get_secdata(scm, skb);  in unix_scm_to_skb()
1834 	if (scm->fp && send_fds)  in unix_scm_to_skb()
1835 		err = unix_attach_fds(scm, skb);  in unix_scm_to_skb()
1868 			    struct scm_cookie *scm)  in unix_skb_scm_eq()  argument
1870 	return UNIXCB(skb).pid == scm->pid &&  in unix_skb_scm_eq()
1871 	       uid_eq(UNIXCB(skb).uid, scm->creds.uid) &&  in unix_skb_scm_eq()
1872 	       gid_eq(UNIXCB(skb).gid, scm->creds.gid) &&  in unix_skb_scm_eq()
1873 	       unix_secdata_eq(scm, skb);  in unix_skb_scm_eq()
1904 	struct scm_cookie scm;  in unix_dgram_sendmsg()  local
1912 	err = scm_send(sock, msg, &scm, false);  in unix_dgram_sendmsg()
1965 	err = unix_scm_to_skb(&scm, skb, true);  in unix_dgram_sendmsg()
2101 	scm_destroy(&scm);  in unix_dgram_sendmsg()
2113 	scm_destroy(&scm);  in unix_dgram_sendmsg()
2124 		     struct scm_cookie *scm, bool fds_sent)  in queue_oob()  argument
2135 	err = unix_scm_to_skb(scm, skb, !fds_sent);  in queue_oob()
2183 	struct scm_cookie scm;  in unix_stream_sendmsg()  local
2188 	err = scm_send(sock, msg, &scm, false);  in unix_stream_sendmsg()
2241 		err = unix_scm_to_skb(&scm, skb, !fds_sent);  in unix_stream_sendmsg()
2284 		err = queue_oob(sock, msg, other, &scm, fds_sent);  in unix_stream_sendmsg()
2291 	scm_destroy(&scm);  in unix_stream_sendmsg()
2303 	scm_destroy(&scm);  in unix_stream_sendmsg()
2350 	struct scm_cookie scm;  in __unix_dgram_recvmsg()  local
2419 	memset(&scm, 0, sizeof(scm));  in __unix_dgram_recvmsg()
2421 	scm_set_cred(&scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);  in __unix_dgram_recvmsg()
2422 	unix_set_secdata(&scm, skb);  in __unix_dgram_recvmsg()
2426 			unix_detach_fds(&scm, skb);  in __unix_dgram_recvmsg()
2446 			unix_peek_fds(&scm, skb);  in __unix_dgram_recvmsg()
2450 	scm_recv_unix(sock, msg, &scm, flags);  in __unix_dgram_recvmsg()
2627 	struct scm_cookie scm;  in unix_stream_read_generic()  local
2658 	memset(&scm, 0, sizeof(scm));  in unix_stream_read_generic()
2720 				scm_destroy(&scm);  in unix_stream_read_generic()
2744 			if (!unix_skb_scm_eq(skb, &scm))  in unix_stream_read_generic()
2749 			scm_set_cred(&scm, UNIXCB(skb).pid, UNIXCB(skb).uid, UNIXCB(skb).gid);  in unix_stream_read_generic()
2750 			unix_set_secdata(&scm, skb);  in unix_stream_read_generic()
2801 				unix_detach_fds(&scm, skb);  in unix_stream_read_generic()
2810 			if (scm.fp)  in unix_stream_read_generic()
2816 				unix_peek_fds(&scm, skb);  in unix_stream_read_generic()
2837 		scm_recv_unix(sock, state->msg, &scm, flags);  in unix_stream_read_generic()
2839 		scm_destroy(&scm);  in unix_stream_read_generic()