bsd/kern/sysv_shm.c

200 	out->shm_perm = in->shm_perm;
227 	out->shm_perm = in->shm_perm;
237 		if ((shmsegs[i].u.shm_perm.mode & SHMSEG_ALLOCATED) &&
238 		    shmsegs[i].u.shm_perm._key == key)
253 	if ((shmseg->u.shm_perm.mode & (SHMSEG_ALLOCATED | SHMSEG_REMOVED))
255 	    shmseg->u.shm_perm._seq != IPCID_TO_SEQ(shmid))
277 	shmseg->u.shm_perm.mode = SHMSEG_FREE;
303 	    (shmseg->u.shm_perm.mode & SHMSEG_REMOVED)) {
407 	AUDIT_ARG(svipc_perm, &shmseg->u.shm_perm);
408 	error = ipcperm(kauth_cred_get(), &shmseg->u.shm_perm,
570 	AUDIT_ARG(svipc_perm, &shmseg->u.shm_perm);
581 		error = ipcperm(cred, &shmseg->u.shm_perm, IPC_R);
600 		error = ipcperm(cred, &shmseg->u.shm_perm, IPC_M);
617 		shmseg->u.shm_perm.uid = inbuf.shm_perm.uid;
618 		shmseg->u.shm_perm.gid = inbuf.shm_perm.gid;
619 		shmseg->u.shm_perm.mode =
620 		    (shmseg->u.shm_perm.mode & ~ACCESSPERMS) |
621 		    (inbuf.shm_perm.mode & ACCESSPERMS);
625 		error = ipcperm(cred, &shmseg->u.shm_perm, IPC_M);
630 		shmseg->u.shm_perm._key = IPC_PRIVATE;
631 		shmseg->u.shm_perm.mode |= SHMSEG_REMOVED;
659 	if (shmseg->u.shm_perm.mode & SHMSEG_REMOVED) {
665 		shmseg->u.shm_perm.mode |= SHMSEG_WANTED;
680 	if ((shmseg->u.shm_perm.mode & mode) != mode)
695 	*retval = IXSEQ_TO_IPCID(segnum, shmseg->u.shm_perm);
722 			if (shmsegs[i].u.shm_perm.mode & SHMSEG_FREE)
738 	shmseg->u.shm_perm.mode = SHMSEG_ALLOCATED | SHMSEG_REMOVED;
739 	shmseg->u.shm_perm._key = uap->key;
740 	shmseg->u.shm_perm._seq = (shmseg->u.shm_perm._seq + 1) & 0x7fff;
774 	shmid = IXSEQ_TO_IPCID(segnum, shmseg->u.shm_perm);
776 	shmseg->u.shm_perm.cuid = shmseg->u.shm_perm.uid = kauth_cred_getuid(cred);
777 	shmseg->u.shm_perm.cgid = shmseg->u.shm_perm.gid = kauth_cred_getgid(cred);
778 	shmseg->u.shm_perm.mode = (shmseg->u.shm_perm.mode & SHMSEG_WANTED) |
790 	AUDIT_ARG(svipc_perm, &shmseg->u.shm_perm);
791 	if (shmseg->u.shm_perm.mode & SHMSEG_WANTED) {
796 		shmseg->u.shm_perm.mode &= ~SHMSEG_WANTED;
996 			shmsegs[i].u.shm_perm.mode = SHMSEG_FREE;
997 			shmsegs[i].u.shm_perm._seq = 0;
1128 			if (shmsegs[cursor].u.shm_perm.mode & SHMSEG_ALLOCATED)