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2332251c6a
1.36 +73 -60 src/sys/compat/linux/linux_ipc.c 1.83 +102 -48 src/sys/kern/sysv_shm.c 1.8 +4 -0 src/sys/sys/syscallsubr.h That change was intended to support vmware3, but wantrem parameter is useless because vmware3 uses SYSV shared memory to talk with X server and X server is native application. The patch worked because check for wantrem was not valid (wantrem and SHMSEG_REMOVED was never checked for SHMSEG_ALLOCATED segments). Add kern.ipc.shm_allow_removed (integer, rw) sysctl (default 0) which when set to 1 allows to return removed segments in shm_find_segment_by_shmid() and shm_find_segment_by_shmidx(). MFC after: 1 week
100 lines
4.4 KiB
C
100 lines
4.4 KiB
C
/*
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* Copyright (c) 2002 Ian Dowse. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_SYSCALLSUBR_H_
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#define _SYS_SYSCALLSUBR_H_
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#include <sys/signal.h>
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#include <sys/uio.h>
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struct sockaddr;
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struct msghdr;
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struct mbuf;
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int kern___getcwd(struct thread *td, u_char *buf, enum uio_seg bufseg,
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u_int buflen);
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int kern_access(struct thread *td, char *path, enum uio_seg pathseg,
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int flags);
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int kern_bind(struct thread *td, int fd, struct sockaddr *sa);
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int kern_chdir(struct thread *td, char *path, enum uio_seg pathseg);
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int kern_chmod(struct thread *td, char *path, enum uio_seg pathseg,
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int mode);
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int kern_chown(struct thread *td, char *path, enum uio_seg pathseg, int uid,
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int gid);
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int kern_connect(struct thread *td, int fd, struct sockaddr *sa);
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int kern_fcntl(struct thread *td, int fd, int cmd, intptr_t arg);
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int kern_futimes(struct thread *td, int fd, struct timeval *tptr,
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enum uio_seg tptrseg);
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int kern_lchown(struct thread *td, char *path, enum uio_seg pathseg,
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int uid, int gid);
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int kern_link(struct thread *td, char *path, char *link,
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enum uio_seg segflg);
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int kern_lutimes(struct thread *td, char *path, enum uio_seg pathseg,
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struct timeval *tptr, enum uio_seg tptrseg);
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int kern_mkdir(struct thread *td, char *path, enum uio_seg segflg,
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int mode);
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int kern_mkfifo(struct thread *td, char *path, enum uio_seg pathseg,
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int mode);
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int kern_mknod(struct thread *td, char *path, enum uio_seg pathseg,
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int mode, int dev);
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int kern_open(struct thread *td, char *path, enum uio_seg pathseg,
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int flags, int mode);
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int kern_ptrace(struct thread *td, int req, pid_t pid, void *addr,
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int data);
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int kern_readlink(struct thread *td, char *path, enum uio_seg pathseg,
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char *buf, enum uio_seg bufseg, int count);
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int kern_rename(struct thread *td, char *from, char *to,
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enum uio_seg pathseg);
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int kern_rmdir(struct thread *td, char *path, enum uio_seg pathseg);
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int kern_select(struct thread *td, int nd, fd_set *fd_in, fd_set *fd_ou,
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fd_set *fd_ex, struct timeval *tvp);
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int kern_sendit(struct thread *td, int s, struct msghdr *mp, int flags,
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struct mbuf *control);
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int kern_shmat(struct thread *td, int shmid, const void *shmaddr,
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int shmflg);
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int kern_shmctl(struct thread *td, int shmid, int cmd, void *buf,
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size_t *bufsz);
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int kern_sigaction(struct thread *td, int sig, struct sigaction *act,
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struct sigaction *oact, int flags);
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int kern_sigaltstack(struct thread *td, stack_t *ss, stack_t *oss);
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int kern_sigprocmask(struct thread *td, int how,
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sigset_t *set, sigset_t *oset, int old);
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int kern_sigsuspend(struct thread *td, sigset_t mask);
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int kern_symlink(struct thread *td, char *path, char *link,
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enum uio_seg segflg);
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int kern_truncate(struct thread *td, char *path, enum uio_seg pathseg,
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off_t length);
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int kern_unlink(struct thread *td, char *path, enum uio_seg pathseg);
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int kern_utimes(struct thread *td, char *path, enum uio_seg pathseg,
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struct timeval *tptr, enum uio_seg tptrseg);
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/* flags for kern_sigaction */
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#define KSA_OSIGSET 0x0001 /* uses osigact_t */
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#define KSA_FREEBSD4 0x0002 /* uses ucontext4 */
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#endif /* !_SYS_SYSCALLSUBR_H_ */
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