/*- * Copyright (c) 1994-1995 Søren Schmidt * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer * in this position and unchanged. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #include #include #include #include #include #include #include #include #include #include #include #include #include struct l_seminfo { l_int semmap; l_int semmni; l_int semmns; l_int semmnu; l_int semmsl; l_int semopm; l_int semume; l_int semusz; l_int semvmx; l_int semaem; }; struct l_shminfo { l_int shmmax; l_int shmmin; l_int shmmni; l_int shmseg; l_int shmall; }; struct l_shm_info { l_int used_ids; l_ulong shm_tot; /* total allocated shm */ l_ulong shm_rss; /* total resident shm */ l_ulong shm_swp; /* total swapped shm */ l_ulong swap_attempts; l_ulong swap_successes; }; static void bsd_to_linux_shminfo( struct shminfo *bpp, struct l_shminfo *lpp) { lpp->shmmax = bpp->shmmax; lpp->shmmin = bpp->shmmin; lpp->shmmni = bpp->shmmni; lpp->shmseg = bpp->shmseg; lpp->shmall = bpp->shmall; } static void bsd_to_linux_shm_info( struct shm_info *bpp, struct l_shm_info *lpp) { lpp->used_ids = bpp->used_ids ; lpp->shm_tot = bpp->shm_tot ; lpp->shm_rss = bpp->shm_rss ; lpp->shm_swp = bpp->shm_swp ; lpp->swap_attempts = bpp->swap_attempts ; lpp->swap_successes = bpp->swap_successes ; } struct l_ipc_perm { l_key_t key; l_uid16_t uid; l_gid16_t gid; l_uid16_t cuid; l_gid16_t cgid; l_ushort mode; l_ushort seq; }; static void linux_to_bsd_ipc_perm(struct l_ipc_perm *lpp, struct ipc_perm *bpp) { bpp->key = lpp->key; bpp->uid = lpp->uid; bpp->gid = lpp->gid; bpp->cuid = lpp->cuid; bpp->cgid = lpp->cgid; bpp->mode = lpp->mode; bpp->seq = lpp->seq; } static void bsd_to_linux_ipc_perm(struct ipc_perm *bpp, struct l_ipc_perm *lpp) { lpp->key = bpp->key; lpp->uid = bpp->uid; lpp->gid = bpp->gid; lpp->cuid = bpp->cuid; lpp->cgid = bpp->cgid; lpp->mode = bpp->mode; lpp->seq = bpp->seq; } struct l_msqid_ds { struct l_ipc_perm msg_perm; struct l_msg *msg_first; /* first message on queue,unused */ struct l_msg *msg_last; /* last message in queue,unused */ l_time_t msg_stime; /* last msgsnd time */ l_time_t msg_rtime; /* last msgrcv time */ l_time_t msg_ctime; /* last change time */ l_ulong msg_lcbytes; /* Reuse junk fields for 32 bit */ l_ulong msg_lqbytes; /* ditto */ l_ushort msg_cbytes; /* current number of bytes on queue */ l_ushort msg_qnum; /* number of messages in queue */ l_ushort msg_qbytes; /* max number of bytes on queue */ l_pid_t msg_lspid; /* pid of last msgsnd */ l_pid_t msg_lrpid; /* last receive pid */ }; struct l_semid_ds { struct l_ipc_perm sem_perm; l_time_t sem_otime; l_time_t sem_ctime; void *sem_base; void *sem_pending; void *sem_pending_last; void *undo; l_ushort sem_nsems; }; struct l_shmid_ds { struct l_ipc_perm shm_perm; l_int shm_segsz; l_time_t shm_atime; l_time_t shm_dtime; l_time_t shm_ctime; l_ushort shm_cpid; l_ushort shm_lpid; l_short shm_nattch; l_ushort private1; void *private2; void *private3; }; static void linux_to_bsd_semid_ds(struct l_semid_ds *lsp, struct semid_ds *bsp) { linux_to_bsd_ipc_perm(&lsp->sem_perm, &bsp->sem_perm); bsp->sem_otime = lsp->sem_otime; bsp->sem_ctime = lsp->sem_ctime; bsp->sem_nsems = lsp->sem_nsems; bsp->sem_base = lsp->sem_base; } static void bsd_to_linux_semid_ds(struct semid_ds *bsp, struct l_semid_ds *lsp) { bsd_to_linux_ipc_perm(&bsp->sem_perm, &lsp->sem_perm); lsp->sem_otime = bsp->sem_otime; lsp->sem_ctime = bsp->sem_ctime; lsp->sem_nsems = bsp->sem_nsems; lsp->sem_base = bsp->sem_base; } static void linux_to_bsd_shmid_ds(struct l_shmid_ds *lsp, struct shmid_ds *bsp) { linux_to_bsd_ipc_perm(&lsp->shm_perm, &bsp->shm_perm); bsp->shm_segsz = lsp->shm_segsz; bsp->shm_lpid = lsp->shm_lpid; bsp->shm_cpid = lsp->shm_cpid; bsp->shm_nattch = lsp->shm_nattch; bsp->shm_atime = lsp->shm_atime; bsp->shm_dtime = lsp->shm_dtime; bsp->shm_ctime = lsp->shm_ctime; bsp->shm_internal = lsp->private3; /* this goes (yet) SOS */ } static void bsd_to_linux_shmid_ds(struct shmid_ds *bsp, struct l_shmid_ds *lsp) { bsd_to_linux_ipc_perm(&bsp->shm_perm, &lsp->shm_perm); lsp->shm_segsz = bsp->shm_segsz; lsp->shm_lpid = bsp->shm_lpid; lsp->shm_cpid = bsp->shm_cpid; lsp->shm_nattch = bsp->shm_nattch; lsp->shm_atime = bsp->shm_atime; lsp->shm_dtime = bsp->shm_dtime; lsp->shm_ctime = bsp->shm_ctime; lsp->private3 = bsp->shm_internal; /* this goes (yet) SOS */ } static void linux_to_bsd_msqid_ds(struct l_msqid_ds *lsp, struct msqid_ds *bsp) { linux_to_bsd_ipc_perm(&lsp->msg_perm, &bsp->msg_perm); bsp->msg_cbytes = lsp->msg_cbytes; bsp->msg_qnum = lsp->msg_qnum; bsp->msg_qbytes = lsp->msg_qbytes; bsp->msg_lspid = lsp->msg_lspid; bsp->msg_lrpid = lsp->msg_lrpid; bsp->msg_stime = lsp->msg_stime; bsp->msg_rtime = lsp->msg_rtime; bsp->msg_ctime = lsp->msg_ctime; } static void bsd_to_linux_msqid_ds(struct msqid_ds *bsp, struct l_msqid_ds *lsp) { bsd_to_linux_ipc_perm(&bsp->msg_perm, &lsp->msg_perm); lsp->msg_cbytes = bsp->msg_cbytes; lsp->msg_qnum = bsp->msg_qnum; lsp->msg_qbytes = bsp->msg_qbytes; lsp->msg_lspid = bsp->msg_lspid; lsp->msg_lrpid = bsp->msg_lrpid; lsp->msg_stime = bsp->msg_stime; lsp->msg_rtime = bsp->msg_rtime; lsp->msg_ctime = bsp->msg_ctime; } static void linux_ipc_perm_to_ipc64_perm(struct l_ipc_perm *in, struct l_ipc64_perm *out) { /* XXX: do we really need to do something here? */ out->key = in->key; out->uid = in->uid; out->gid = in->gid; out->cuid = in->cuid; out->cgid = in->cgid; out->mode = in->mode; out->seq = in->seq; } static int linux_msqid_pullup(l_int ver, struct l_msqid_ds *linux_msqid, caddr_t uaddr) { struct l_msqid64_ds linux_msqid64; int error; if (ver == LINUX_IPC_64) { error = copyin(uaddr, &linux_msqid64, sizeof(linux_msqid64)); if (error != 0) return (error); bzero(linux_msqid, sizeof(*linux_msqid)); linux_msqid->msg_perm.uid = linux_msqid64.msg_perm.uid; linux_msqid->msg_perm.gid = linux_msqid64.msg_perm.gid; linux_msqid->msg_perm.mode = linux_msqid64.msg_perm.mode; if (linux_msqid64.msg_qbytes > USHRT_MAX) linux_msqid->msg_lqbytes = linux_msqid64.msg_qbytes; else linux_msqid->msg_qbytes = linux_msqid64.msg_qbytes; } else { error = copyin(uaddr, linux_msqid, sizeof(*linux_msqid)); } return (error); } static int linux_msqid_pushdown(l_int ver, struct l_msqid_ds *linux_msqid, caddr_t uaddr) { struct l_msqid64_ds linux_msqid64; if (ver == LINUX_IPC_64) { bzero(&linux_msqid64, sizeof(linux_msqid64)); linux_ipc_perm_to_ipc64_perm(&linux_msqid->msg_perm, &linux_msqid64.msg_perm); linux_msqid64.msg_stime = linux_msqid->msg_stime; linux_msqid64.msg_rtime = linux_msqid->msg_rtime; linux_msqid64.msg_ctime = linux_msqid->msg_ctime; if (linux_msqid->msg_cbytes == 0) linux_msqid64.msg_cbytes = linux_msqid->msg_lcbytes; else linux_msqid64.msg_cbytes = linux_msqid->msg_cbytes; linux_msqid64.msg_qnum = linux_msqid->msg_qnum; if (linux_msqid->msg_qbytes == 0) linux_msqid64.msg_qbytes = linux_msqid->msg_lqbytes; else linux_msqid64.msg_qbytes = linux_msqid->msg_qbytes; linux_msqid64.msg_lspid = linux_msqid->msg_lspid; linux_msqid64.msg_lrpid = linux_msqid->msg_lrpid; return (copyout(&linux_msqid64, uaddr, sizeof(linux_msqid64))); } else { return (copyout(linux_msqid, uaddr, sizeof(*linux_msqid))); } } static int linux_semid_pullup(l_int ver, struct l_semid_ds *linux_semid, caddr_t uaddr) { struct l_semid64_ds linux_semid64; int error; if (ver == LINUX_IPC_64) { error = copyin(uaddr, &linux_semid64, sizeof(linux_semid64)); if (error != 0) return (error); bzero(linux_semid, sizeof(*linux_semid)); linux_semid->sem_perm.uid = linux_semid64.sem_perm.uid; linux_semid->sem_perm.gid = linux_semid64.sem_perm.gid; linux_semid->sem_perm.mode = linux_semid64.sem_perm.mode; } else { error = copyin(uaddr, linux_semid, sizeof(*linux_semid)); } return (error); } static int linux_semid_pushdown(l_int ver, struct l_semid_ds *linux_semid, caddr_t uaddr) { struct l_semid64_ds linux_semid64; if (ver == LINUX_IPC_64) { bzero(&linux_semid64, sizeof(linux_semid64)); linux_ipc_perm_to_ipc64_perm(&linux_semid->sem_perm, &linux_semid64.sem_perm); linux_semid64.sem_otime = linux_semid->sem_otime; linux_semid64.sem_ctime = linux_semid->sem_ctime; linux_semid64.sem_nsems = linux_semid->sem_nsems; return (copyout(&linux_semid64, uaddr, sizeof(linux_semid64))); } else { return (copyout(linux_semid, uaddr, sizeof(*linux_semid))); } } static int linux_shmid_pullup(l_int ver, struct l_shmid_ds *linux_shmid, caddr_t uaddr) { struct l_shmid64_ds linux_shmid64; int error; if (ver == LINUX_IPC_64) { error = copyin(uaddr, &linux_shmid64, sizeof(linux_shmid64)); if (error != 0) return (error); bzero(linux_shmid, sizeof(*linux_shmid)); linux_shmid->shm_perm.uid = linux_shmid64.shm_perm.uid; linux_shmid->shm_perm.gid = linux_shmid64.shm_perm.gid; linux_shmid->shm_perm.mode = linux_shmid64.shm_perm.mode; } else { error = copyin(uaddr, linux_shmid, sizeof(*linux_shmid)); } return (error); } static int linux_shmid_pushdown(l_int ver, struct l_shmid_ds *linux_shmid, caddr_t uaddr) { struct l_shmid64_ds linux_shmid64; if (ver == LINUX_IPC_64) { bzero(&linux_shmid64, sizeof(linux_shmid64)); linux_ipc_perm_to_ipc64_perm(&linux_shmid->shm_perm, &linux_shmid64.shm_perm); linux_shmid64.shm_segsz = linux_shmid->shm_segsz; linux_shmid64.shm_atime = linux_shmid->shm_atime; linux_shmid64.shm_dtime = linux_shmid->shm_dtime; linux_shmid64.shm_ctime = linux_shmid->shm_ctime; linux_shmid64.shm_cpid = linux_shmid->shm_cpid; linux_shmid64.shm_lpid = linux_shmid->shm_lpid; linux_shmid64.shm_nattch = linux_shmid->shm_nattch; return (copyout(&linux_shmid64, uaddr, sizeof(linux_shmid64))); } else { return (copyout(linux_shmid, uaddr, sizeof(*linux_shmid))); } } static int linux_shminfo_pushdown(l_int ver, struct l_shminfo *linux_shminfo, caddr_t uaddr) { struct l_shminfo64 linux_shminfo64; if (ver == LINUX_IPC_64) { bzero(&linux_shminfo64, sizeof(linux_shminfo64)); linux_shminfo64.shmmax = linux_shminfo->shmmax; linux_shminfo64.shmmin = linux_shminfo->shmmin; linux_shminfo64.shmmni = linux_shminfo->shmmni; linux_shminfo64.shmseg = linux_shminfo->shmseg; linux_shminfo64.shmall = linux_shminfo->shmall; return (copyout(&linux_shminfo64, uaddr, sizeof(linux_shminfo64))); } else { return (copyout(linux_shminfo, uaddr, sizeof(*linux_shminfo))); } } int linux_semop(struct thread *td, struct linux_semop_args *args) { struct semop_args /* { int semid; struct sembuf *sops; int nsops; } */ bsd_args; bsd_args.semid = args->semid; bsd_args.sops = (struct sembuf *)args->tsops; bsd_args.nsops = args->nsops; return semop(td, &bsd_args); } int linux_semget(struct thread *td, struct linux_semget_args *args) { struct semget_args /* { key_t key; int nsems; int semflg; } */ bsd_args; if (args->nsems < 0) return (EINVAL); bsd_args.key = args->key; bsd_args.nsems = args->nsems; bsd_args.semflg = args->semflg; return semget(td, &bsd_args); } int linux_semctl(struct thread *td, struct linux_semctl_args *args) { struct l_semid_ds linux_semid; struct __semctl_args /* { int semid; int semnum; int cmd; union semun *arg; } */ bsd_args; struct l_seminfo linux_seminfo; int error; union semun *unptr; caddr_t sg; sg = stackgap_init(); /* Make sure the arg parameter can be copied in. */ unptr = stackgap_alloc(&sg, sizeof(union semun)); bcopy(&args->arg, unptr, sizeof(union semun)); bsd_args.semid = args->semid; bsd_args.semnum = args->semnum; bsd_args.arg = unptr; switch (args->cmd & ~LINUX_IPC_64) { case LINUX_IPC_RMID: bsd_args.cmd = IPC_RMID; break; case LINUX_GETNCNT: bsd_args.cmd = GETNCNT; break; case LINUX_GETPID: bsd_args.cmd = GETPID; break; case LINUX_GETVAL: bsd_args.cmd = GETVAL; break; case LINUX_GETZCNT: bsd_args.cmd = GETZCNT; break; case LINUX_SETVAL: bsd_args.cmd = SETVAL; break; case LINUX_IPC_SET: bsd_args.cmd = IPC_SET; error = linux_semid_pullup(args->cmd & LINUX_IPC_64, &linux_semid, (caddr_t)args->arg.buf); if (error) return (error); unptr->buf = stackgap_alloc(&sg, sizeof(struct semid_ds)); linux_to_bsd_semid_ds(&linux_semid, unptr->buf); return __semctl(td, &bsd_args); case LINUX_IPC_STAT: case LINUX_SEM_STAT: if((args->cmd & ~LINUX_IPC_64) == LINUX_IPC_STAT) bsd_args.cmd = IPC_STAT; else bsd_args.cmd = SEM_STAT; unptr->buf = stackgap_alloc(&sg, sizeof(struct semid_ds)); error = __semctl(td, &bsd_args); if (error) return error; td->td_retval[0] = IXSEQ_TO_IPCID(bsd_args.semid, unptr->buf->sem_perm); bsd_to_linux_semid_ds(unptr->buf, &linux_semid); return (linux_semid_pushdown(args->cmd & LINUX_IPC_64, &linux_semid, (caddr_t)args->arg.buf)); case LINUX_IPC_INFO: case LINUX_SEM_INFO: bcopy(&seminfo, &linux_seminfo, sizeof(linux_seminfo) ); /* XXX BSD equivalent? #define used_semids 10 #define used_sems 10 linux_seminfo.semusz = used_semids; linux_seminfo.semaem = used_sems; */ error = copyout(&linux_seminfo, args->arg.buf, sizeof(linux_seminfo)); if (error) return error; td->td_retval[0] = seminfo.semmni; return 0; /* No need for __semctl call */ case LINUX_GETALL: /* FALLTHROUGH */ case LINUX_SETALL: /* FALLTHROUGH */ default: linux_msg(td, "ipc type %d is not implemented", args->cmd & ~LINUX_IPC_64); return EINVAL; } return __semctl(td, &bsd_args); } int linux_msgsnd(struct thread *td, struct linux_msgsnd_args *args) { struct msgsnd_args /* { int msqid; void *msgp; size_t msgsz; int msgflg; } */ bsd_args; bsd_args.msqid = args->msqid; bsd_args.msgp = args->msgp; bsd_args.msgsz = args->msgsz; bsd_args.msgflg = args->msgflg; return msgsnd(td, &bsd_args); } int linux_msgrcv(struct thread *td, struct linux_msgrcv_args *args) { struct msgrcv_args /* { int msqid; void *msgp; size_t msgsz; long msgtyp; int msgflg; } */ bsd_args; bsd_args.msqid = args->msqid; bsd_args.msgp = args->msgp; bsd_args.msgsz = args->msgsz; bsd_args.msgtyp = args->msgtyp; bsd_args.msgflg = args->msgflg; return msgrcv(td, &bsd_args); } int linux_msgget(struct thread *td, struct linux_msgget_args *args) { struct msgget_args /* { key_t key; int msgflg; } */ bsd_args; bsd_args.key = args->key; bsd_args.msgflg = args->msgflg; return msgget(td, &bsd_args); } int linux_msgctl(struct thread *td, struct linux_msgctl_args *args) { struct msgctl_args /* { int msqid; int cmd; struct msqid_ds *buf; } */ bsd_args; int error; struct l_msqid_ds linux_msqid; caddr_t sg = stackgap_init(); error = linux_msqid_pullup(args->cmd & LINUX_IPC_64, &linux_msqid, (caddr_t)args->buf); if (error != 0) return (error); bsd_args.buf = (struct msqid_ds*)stackgap_alloc(&sg, sizeof(struct l_msqid_ds)); bsd_args.msqid = args->msqid; bsd_args.cmd = args->cmd & ~LINUX_IPC_64; if (bsd_args.cmd == LINUX_IPC_SET) linux_to_bsd_msqid_ds(&linux_msqid, bsd_args.buf); error = msgctl(td, &bsd_args); if (error != 0) if (bsd_args.cmd != LINUX_IPC_RMID || error != EINVAL) return (error); if (bsd_args.cmd == LINUX_IPC_STAT) { bsd_to_linux_msqid_ds(bsd_args.buf, &linux_msqid); return (linux_msqid_pushdown(args->cmd & LINUX_IPC_64, &linux_msqid, (caddr_t)args->buf)); } return (0); } int linux_shmat(struct thread *td, struct linux_shmat_args *args) { struct shmat_args /* { int shmid; void *shmaddr; int shmflg; } */ bsd_args; int error; bsd_args.shmid = args->shmid; bsd_args.shmaddr = args->shmaddr; bsd_args.shmflg = args->shmflg; if ((error = shmat(td, &bsd_args))) return error; #ifdef __i386__ if ((error = copyout(td->td_retval, args->raddr, sizeof(l_ulong)))) return error; td->td_retval[0] = 0; #endif return 0; } int linux_shmdt(struct thread *td, struct linux_shmdt_args *args) { struct shmdt_args /* { void *shmaddr; } */ bsd_args; bsd_args.shmaddr = args->shmaddr; return shmdt(td, &bsd_args); } int linux_shmget(struct thread *td, struct linux_shmget_args *args) { struct shmget_args /* { key_t key; int size; int shmflg; } */ bsd_args; bsd_args.key = args->key; bsd_args.size = args->size; bsd_args.shmflg = args->shmflg; return shmget(td, &bsd_args); } int linux_shmctl(struct thread *td, struct linux_shmctl_args *args) { struct l_shmid_ds linux_shmid; struct l_shminfo linux_shminfo; struct l_shm_info linux_shm_info; struct shmctl_args /* { int shmid; int cmd; struct shmid_ds *buf; } */ bsd_args; int error; caddr_t sg = stackgap_init(); switch (args->cmd & ~LINUX_IPC_64) { case LINUX_IPC_INFO: bsd_args.shmid = args->shmid; bsd_args.cmd = IPC_INFO; bsd_args.buf = (struct shmid_ds*)stackgap_alloc(&sg, sizeof(struct shminfo)); if ((error = shmctl(td, &bsd_args))) return error; bsd_to_linux_shminfo( (struct shminfo *)bsd_args.buf, &linux_shminfo ); return (linux_shminfo_pushdown(args->cmd & LINUX_IPC_64, &linux_shminfo, (caddr_t)args->buf)); case LINUX_SHM_INFO: bsd_args.shmid = args->shmid; bsd_args.cmd = SHM_INFO; bsd_args.buf = (struct shmid_ds*)stackgap_alloc(&sg, sizeof(struct shm_info)); if ((error = shmctl(td, &bsd_args))) return error; bsd_to_linux_shm_info( (struct shm_info *)bsd_args.buf, &linux_shm_info ); return copyout(&linux_shm_info, (caddr_t)args->buf, sizeof(struct shm_info)); case LINUX_IPC_STAT: bsd_args.shmid = args->shmid; bsd_args.cmd = IPC_STAT; bsd_args.buf = (struct shmid_ds*)stackgap_alloc(&sg, sizeof(struct shmid_ds)); if ((error = shmctl(td, &bsd_args))) return error; bsd_to_linux_shmid_ds(bsd_args.buf, &linux_shmid); return (linux_shmid_pushdown(args->cmd & LINUX_IPC_64, &linux_shmid, (caddr_t)args->buf)); case LINUX_SHM_STAT: bsd_args.shmid = args->shmid; bsd_args.cmd = SHM_STAT; bsd_args.buf = (struct shmid_ds*)stackgap_alloc(&sg, sizeof(struct shmid_ds)); if ((error = shmctl(td, &bsd_args))) { return error; } bsd_to_linux_shmid_ds(bsd_args.buf, &linux_shmid); return (linux_shmid_pushdown(args->cmd & LINUX_IPC_64, &linux_shmid, (caddr_t)args->buf)); case LINUX_IPC_SET: error = linux_shmid_pullup(args->cmd & LINUX_IPC_64, &linux_shmid, (caddr_t)args->buf); if (error != 0) return error; bsd_args.buf = (struct shmid_ds*)stackgap_alloc(&sg, sizeof(struct shmid_ds)); linux_to_bsd_shmid_ds(&linux_shmid, bsd_args.buf); bsd_args.shmid = args->shmid; bsd_args.cmd = IPC_SET; return shmctl(td, &bsd_args); case LINUX_IPC_RMID: bsd_args.shmid = args->shmid; bsd_args.cmd = IPC_RMID; if (args->buf == NULL) bsd_args.buf = NULL; else { error = linux_shmid_pullup(args->cmd & LINUX_IPC_64, &linux_shmid, (caddr_t)args->buf); if (error != 0) return error; bsd_args.buf = (struct shmid_ds*)stackgap_alloc(&sg, sizeof(struct shmid_ds)); linux_to_bsd_shmid_ds(&linux_shmid, bsd_args.buf); } return shmctl(td, &bsd_args); case LINUX_SHM_LOCK: case LINUX_SHM_UNLOCK: default: linux_msg(td, "ipc typ=%d not implemented", args->cmd & ~LINUX_IPC_64); return EINVAL; } }