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* In preparation for unlocking ioctl(2), grab the kernel lock as needed.anton2020-02-221-1/+5
| | | | ok kettenis@ mpi@ visa@
* Unify handling of ioctls FIOSETOWN/SIOCSPGRP/TIOCSPGRP andvisa2020-01-081-9/+7
| | | | | | | | | | | | FIOGETOWN/SIOCGPGRP/TIOCGPGRP. Do this by determining the meaning of the ID parameter inside the sigio code. Also add cases for FIOSETOWN and FIOGETOWN where there have been TIOCSPGRP and TIOCGPGRP before. These changes allow removing the ID translation from sys_fcntl() and sys_ioctl(). Idea from NetBSD OK mpi@, claudio@
* Constify instances of struct fileops.visa2020-01-051-2/+2
| | | | OK anton@, mpi@, bluhm@
* Utilize sigio with sockets.visa2018-11-191-6/+4
| | | | OK mpi@
* Reorder checks in the read/write(2) family of syscalls to prepare makingmpi2018-08-201-3/+3
| | | | | | | | | | | | file operations mp-safe. This change makes it clear that `f_offset' is only accessed in vn_read() and vn_write(), which will help taking it out of the KERNEL_LOCK(). This refactoring uncovered a race in vn_read() which is now documented and will be addressed in a later diff. ok visa@
* Use FNONBLOCK instead of SS_NBIO to check/indicate that the I/O modempi2018-07-301-15/+19
| | | | | | | | | | | | | for sockets is non-blocking. This allows us to G/C SS_NBIO. Having to keep the two flags in sync in a mp-safe way is complicated. This change introduce a behavior change in sosplice(), it can now always block. However this should not matter much due to the socket lock being taken beforhand. ok bluhm@, benno@, visa@
* Move socket & pipe specific logic in their ioctl handler.mpi2018-07-101-1/+7
| | | | ok visa@, tb@
* Pass the socket to sounlock(), this prepare the terrain for per-socketmpi2018-06-061-5/+5
| | | | | | locking. ok visa@, bluhm@
* Remove solock() surrounding PRU_CONTROL in soo_ioctl().pirofti2018-04-261-3/+1
| | | | | | | | | We do not need the lock there. Missed this in my former commit pushing NET_LOCK() down the stack. Found the hard way by naddy@, sorry! OK mpi@.
* Convert 'struct fileops' definitions to C99.mpi2018-04-101-3/+8
| | | | ok millert@, deraadt@, florian@
* Move SB_SPLICE, SB_WAIT and SB_SEL to `sb_flags', serialized by solock().mpi2017-12-101-3/+3
| | | | | | | | | | | SB_KNOTE remains the only bit set on `sb_flagsintr' as it is set/unset in contexts related to kqueue(2) where we'd like to avoid grabbing solock(). While here add some KERNEL_LOCK()/UNLOCK() dances around selwakeup() and csignal() to mark which remaining functions need to be addressed in the socket layer. ok visa@, bluhm@
* Push the NET_LOCK into ifioctl() and use the NET_RLOCK in ifioctl_get().tb2017-11-141-3/+1
| | | | | | In particular, this allows SIOCGIF* requests to run in parallel. lots of help & ok mpi, ok visa, sashan
* Remove NET_LOCK()'s argument.mpi2017-08-111-3/+3
| | | | Tested by Hrvoje Popovski, ok bluhm@
* Grab the socket lock in soo_ioctl() where `so_state', `so_rcv'mpi2017-07-241-24/+31
| | | | | | and `so_snd' are modified. ok bluhm@, visa@
* Extend the scope of the socket lock in soo_stat() to protect `so_state'mpi2017-07-201-4/+3
| | | | | | and `so_rcv'. ok bluhm@, claudio@, visa@
* Do not grab the NET_LOCK() when poll(2)ing on unix domain sockets.mpi2017-02-221-3/+3
| | | | | | | Fix the 'X freeze' while scanning with wireless interfaces. Problem reported by pirofti@. ok tb@, bluhm@
* Wrap the NET_LOCK() into a per-socket solock() that does nothing formpi2017-02-141-5/+5
| | | | | | | | unix domain sockets. This should prevent the multiple deadlock related to unix domain sockets. Inputs from millert@ and bluhm@, ok bluhm@
* Remove the inifioctl hack, checking for an unheld NET_LOCK() inmpi2017-01-311-8/+1
| | | | | tsleep(9) & friends seem to only produce false positives and cannot be easily disabled.
* Introduce a hack to remove false-positives when looking for memorympi2017-01-251-1/+8
| | | | | | | | allocation that can sleep while holding the NET_LOCK(). To be removed once we're confident the remaining code paths are safe. Discussed with deraadt@
* Introduce the NET_LOCK() a rwlock used to serialize accesses to the partsmpi2016-12-191-9/+9
| | | | | | | | | | | of the network stack that are not yet ready to be executed in parallel or where new sleeping points are not possible. This first pass replace all the entry points leading to ip_output(). This is done to not introduce new sleeping points when trying to acquire ART's write lock, needed when a new L2 entry is created via the RT_RESOLVE. Inputs from and ok bluhm@, ok dlg@
* Enforce that ifioctl() is called at IPL_SOFTNET.mpi2016-11-221-3/+7
| | | | | | | This will allow us to keep locking simple as soon as we trade splsoftnet() for a rwlock. ok bluhm@
* Kill rtioctl() stub, returning EOPNOTSUPP since tree import.mpi2016-11-211-2/+2
| | | | ok jsg@
* Enforce that pr_usrreq functions are called at IPL_SOFTNET.mpi2016-11-211-2/+10
| | | | | | | This will allow us to keep locking simple as soon as we trade splsoftnet() for a rwlock. ok bluhm@, claudio@
* Separate splsoftnet() from variable initialization.bluhm2016-10-061-2/+3
| | | | From mpi@'s netlock diff; OK mikeb@
* remove stale lint annotationstedu2015-12-051-4/+1
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* test mbuf pointers against NULL not 0jsg2015-05-131-6/+6
| | | | ok krw@ miod@
* bzero -> memset. for the speeds.tedu2014-07-131-2/+2
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* Eliminates struct pcred by moving the real and saved ugids intoguenther2014-03-301-2/+2
| | | | | | | | | struct ucred; struct process then directly links to the ucred Based on a discussion at c2k10 or so before noting that FreeBSD and NetBSD did this too. ok matthew@
* poll(2) on a socket should set POLLHUP on EOF. This makes themillert2013-09-281-2/+5
| | | | | behavior of socketpair(2) match that of pipe(2) when the other end is closed. OK guenther@
* remove some obsolete caststedu2013-04-051-7/+6
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* Changing the socket buffer flags sb_flags was not interrupt safebluhm2013-01-151-3/+3
| | | | | | | | as |= and &= are non-atomic operations. To avoid additional locks, put the flags that have to be accessed from interrupt into a separate sb_flagsintr 32 bit integer field. sb_flagsintr is protected by splsoftnet. Input from miod@ deraadt@; OK deraadt@
* fix PR 6082: do not create more fd's than will fit in the message onotto2009-02-221-2/+3
| | | | the receiving side when passing fd's. ok deraadt@ kettenis@
* A closed, disconnected, or otherwise failed socket is still a socketderaadt2008-10-021-2/+10
| | | | | | and should return stat information instead of EINVAL from deep in the guts of tcp_usrreq. While there, put some more information into struct stat, inspired by FreeBSD. EINVAL problem reported in PR 5943
* Deal with the situation when TCP nfs mounts timeout and processesthib2008-05-231-3/+3
| | | | | | | | | | | | | get hung in nfs_reconnect() because they do not have the proper privilages to bind to a socket, by adding a struct proc * argument to sobind() (and the *_usrreq() routines, and finally in{6}_pcbbind) and do the sobind() with proc0 in nfs_connect. OK markus@, blambert@. "go ahead" deraadt@. Fixes an issue reported by bernd@ (Tested by bernd@). Fixes PR5135 too.
* exclude control data from the number of bytes returned by FIONREAD ioctl()kurt2007-02-261-2/+2
| | | | | | by adding a sb_datacc count to sockbuf that counts data excluding MT_CONTROL and MT_SONAME mbuf types. w/help from deraadt@. okay deraadt@ claudio@
* ansi/deregister. No binary change.jsg2005-12-131-28/+8
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* Replace select backends with poll backends. selscan() and pollscan()millert2003-09-231-33/+28
| | | | | | | now call the poll backend. With this change we implement greater poll(2) functionality instead of emulating it via the select backend. Adapted from NetBSD and including some changes from FreeBSD. Tested by many, deraadt@ OK
* Remove the advertising clause in the UCB license which Berkeleymillert2003-06-021-6/+2
| | | | rescinded 22 July 1999. Proofed by myself and Theo.
* Add a fo_stat member to struct fileops. Used soon.art2001-05-141-2/+2
| | | | Also add a stat function for kqueue from FreeBSD.
* More generic arguments to soo_stat.art2001-05-141-4/+6
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* port kqueue changes from freebsd, plus all required openbsd glue.provos2001-03-011-3/+5
| | | | | | | okay deraadt@, millert@ from jlemon@freebsd.org: extend kqueue down to the device layer, backwards compatible approach suggested by peter@freebsd.org
* Change struct file interface methods read and write to pass file offset incsapuntz2000-04-191-3/+5
| | | | | | | and out. Make pread/pwrite in netbsd & linux thread safe - which is the whole point anyway.
* for non-tty TIOCSPGRP/F_SETOWN/FIOSETOWN pgid setting calls, store uidderaadt1997-08-311-1/+4
| | | | | | | and euid as well, then deliver them using new csignal() interface which ensures that pgid setting process is permitted to signal the pgid process(es). Thanks to newsham@aloha.net for extensive help and discussion.
* OpenBSD tagsniklas1997-02-241-0/+1
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* initial import of NetBSD treederaadt1995-10-181-0/+204
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