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* kern: clean up empty lines in .c and .h filesMateusz Guzik2020-09-011-1/+0
| | | | Notes: svn path=/head/; revision=365222
* Normalize COMPAT_43 syscall declarations.Brooks Davis2018-12-041-33/+3
| | | | | | | | | | | | | | | | Have ogetkerninfo, ogetpagesize, ogethostname, osethostname, and oaccept declare o<foo>_args structs rather than non-compat ones. Due to a failure to use NOARGS in most cases this adds only one new declaration. No changes required in freebsd32 as only ogetpagesize() is implemented and it has a 32-bit specific implementation. Reviewed by: kib Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D15816 Notes: svn path=/head/; revision=341474
* Move most of the contents of opt_compat.h to opt_global.h.Brooks Davis2018-04-061-2/+0
| | | | | | | | | | | | | | | | | | | | | opt_compat.h is mentioned in nearly 180 files. In-progress network driver compabibility improvements may add over 100 more so this is closer to "just about everywhere" than "only some files" per the guidance in sys/conf/options. Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of sys/compat/linux/*.c. A fake _COMPAT_LINUX option ensure opt_compat.h is created on all architectures. Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the set of compiled files. Reviewed by: kib, cem, jhb, jtl Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14941 Notes: svn path=/head/; revision=332122
* sys: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-201-0/+2
| | | | | | | | | | | | | | | | | Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Notes: svn path=/head/; revision=326023
* Remove register keyword from sys/ and ANSIfy prototypesEd Maste2017-05-171-15/+5
| | | | | | | | | | | | | | | A long long time ago the register keyword told the compiler to store the corresponding variable in a CPU register, but it is not relevant for any compiler used in the FreeBSD world today. ANSIfy related prototypes while here. Reviewed by: cem, jhb Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D10193 Notes: svn path=/head/; revision=318389
* Renumber license clauses in sys/kern to avoid skipping #3Ed Maste2016-09-151-1/+1
| | | | Notes: svn path=/head/; revision=305832
* Place hostnames and similar information fully under the prison system.Jamie Gritton2009-05-291-11/+11
| | | | | | | | | | | | | | | | | | | | The system hostname is now stored in prison0, and the global variable "hostname" has been removed, as has the hostname_mtx mutex. Jails may have their own host information, or they may inherit it from the parent/system. The proper way to read the hostname is via getcredhostname(), which will copy either the hostname associated with the passed cred, or the system hostname if you pass NULL. The system hostname can still be accessed directly (and without locking) at prison0.pr_host, but that should be avoided where possible. The "similar information" referred to is domainname, hostid, and hostuuid, which have also become prison parameters and had their associated global variables removed. Approved by: bz (mentor) Notes: svn path=/head/; revision=193066
* Fix compilation. Also move ogetkerninfo() to kern_xxx.c.Ed Schouten2008-12-291-1/+208
| | | | | | | | | | It seems I forgot to remove `int error' from a single piece of code. I'm also moving ogetkerninfo() to kern_xxx.c, because it belongs to the class of compat system information system calls, not the generic sysctl code. Notes: svn path=/head/; revision=186570
* Push down Giant inside sysctl. Also add some more assertions to the code.Ed Schouten2008-12-291-34/+16
| | | | | | | | | | | | | | | | | In the existing code we didn't really enforce that callers hold Giant before calling userland_sysctl(), even though there is no guarantee it is safe. Fix this by just placing Giant locks around the call to the oid handler. This also means we only pick up Giant for a very short period of time. Maybe we should add MPSAFE flags to sysctl or phase it out all together. I've also added SYSCTL_LOCK_ASSERT(). We have to make sure sysctl_root() and name2oid() are called with the sysctl lock held. Reviewed by: Jille Timmermans <jille quis cx> Notes: svn path=/head/; revision=186564
* Mark uname(), getdomainname() and setdomainname() with COMPAT_FREEBSD4.Ed Schouten2008-11-091-37/+26
| | | | | | | | | | | | | | | | | | | | | | | | Looking at our source code history, it seems the uname(), getdomainname() and setdomainname() system calls got deprecated somewhere after FreeBSD 1.1, but they have never been phased out properly. Because we don't have a COMPAT_FREEBSD1, just use COMPAT_FREEBSD4. Also fix the Linuxolator to build without the setdomainname() routine by just making it call userland_sysctl on kern.domainname. Also replace the setdomainname()'s implementation to use this approach, because we're duplicating code with sysctl_domainname(). I wasn't able to keep these three routines working in our COMPAT_FREEBSD32, because that would require yet another keyword for syscalls.master (COMPAT4+NOPROTO). Because this routine is probably unused already, this won't be a problem in practice. If it turns out to be a problem, we'll just restore this functionality. Reviewed by: rdivacky, kib Notes: svn path=/head/; revision=184789
* Step 1.5 of importing the network stack virtualization infrastructureMarko Zec2008-10-021-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | from the vimage project, as per plan established at devsummit 08/08: http://wiki.freebsd.org/Image/Notes200808DevSummit Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator macros, and CURVNET_SET() context setting macros, all currently resolving to NOPs. Prepare for virtualization of selected SYSCTL objects by introducing a family of SYSCTL_V_*() macros, currently resolving to their global counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT(). Move selected #defines from sys/sys/vimage.h to newly introduced header files specific to virtualized subsystems (sys/net/vnet.h, sys/netinet/vinet.h etc.). All the changes are verified to have zero functional impact at this point in time by doing MD5 comparision between pre- and post-change object files(*). (*) netipsec/keysock.c did not validate depending on compile time options. Implemented by: julian, bz, brooks, zec Reviewed by: julian, bz, brooks, kris, rwatson, ... Approved by: julian (mentor) Obtained from: //depot/projects/vimage-commit2/... X-MFC after: never Sponsored by: NLnet Foundation, The FreeBSD Foundation Notes: svn path=/head/; revision=183550
* Commit step 1 of the vimage project, (network stack)Bjoern A. Zeeb2008-08-171-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | virtualization work done by Marko Zec (zec@). This is the first in a series of commits over the course of the next few weeks. Mark all uses of global variables to be virtualized with a V_ prefix. Use macros to map them back to their global names for now, so this is a NOP change only. We hope to have caught at least 85-90% of what is needed so we do not invalidate a lot of outstanding patches again. Obtained from: //depot/projects/vimage-commit2/... Reviewed by: brooks, des, ed, mav, julian, jamie, kris, rwatson, zec, ... (various people I forgot, different versions) md5 (with a bit of help) Sponsored by: NLnet Foundation, The FreeBSD Foundation X-MFC after: never V_Commit_Message_Reviewed_By: more people than the patch Notes: svn path=/head/; revision=181803
* Introduce a new lock, hostname_mtx, and use it to synchronize accessRobert Watson2008-07-051-15/+17
| | | | | | | | | | | | | | | to global hostname and domainname variables. Where necessary, copy to or from a stack-local buffer before performing copyin() or copyout(). A few uses, such as in cd9660 and daemon_saver, remain under-synchronized and will require further updates. Correct a bug in which a failed copyin() of domainname would leave domainname potentially corrupted. MFC after: 3 weeks Notes: svn path=/head/; revision=180291
* Someone cut and pasted a bunch of stuff here so lots ofJulian Elischer2008-06-261-15/+15
| | | | | | | | | | | | indents were spaces when they should have been tabs, screwing up diffs and patches.. Whitespace commit as my first SVN commit. (yay) MFC after: 1 week Notes: svn path=/head/; revision=180039
* Further system call comment cleanup:Robert Watson2007-03-051-6/+4
| | | | | | | | | | | | | - Remove also "MP SAFE" after prior "MPSAFE" pass. (suggested by bde) - Remove extra blank lines in some cases. - Add extra blank lines in some cases. - Remove no-op comments consisting solely of the function name, the word "syscall", or the system call name. - Add punctuation. - Re-wrap some comments. Notes: svn path=/head/; revision=167232
* Remove 'MPSAFE' annotations from the comments above most system calls: allRobert Watson2007-03-041-24/+0
| | | | | | | | | | | system calls now enter without Giant held, and then in some cases, acquire Giant explicitly. Remove a number of other MPSAFE annotations in the credential code and tweak one or two other adjacent comments. Notes: svn path=/head/; revision=167211
* Sweep kernel replacing suser(9) calls with priv(9) calls, assigningRobert Watson2006-11-061-4/+6
| | | | | | | | | | | | | | | | specific privilege names to a broad range of privileges. These may require some future tweaking. Sponsored by: nCircle Network Security, Inc. Obtained from: TrustedBSD Project Discussed on: arch@ Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri, Alex Lyashkov <umka at sevcity dot net>, Skip Ford <skip dot ford at verizon dot net>, Antoine Brodin <antoine dot brodin at laposte dot net> Notes: svn path=/head/; revision=164033
* /* -> /*- for copyright notices, minor format tweaks as necessaryWarner Losh2005-01-061-1/+1
| | | | Notes: svn path=/head/; revision=139804
* In osethostname(), don't need to call suser() directly asRobert Watson2004-10-221-4/+2
| | | | | | | | userland_sysctl() will perform all necessary privilege checks for the caller. Notes: svn path=/head/; revision=136777
* Add missing zero flag arguments to calls to userland_sysctl()Poul-Henning Kamp2004-10-121-2/+3
| | | | Notes: svn path=/head/; revision=136417
* Put on my peril sensitive sunglasses and add a flags field to the internalPeter Wemm2004-10-111-5/+5
| | | | | | | | | | | | | | | | | | | sysctl routines and state. Add some code to use it for signalling the need to downconvert a data structure to 32 bits on a 64 bit OS when requested by a 32 bit app. I tried to do this in a generic abi wrapper that intercepted the sysctl oid's, or looked up the format string etc, but it was a real can of worms that turned into a fragile mess before I even got it partially working. With this, we can now run 'sysctl -a' on a 32 bit sysctl binary and have it not abort. Things like netstat, ps, etc have a long way to go. This also fixes a bug in the kern.ps_strings and kern.usrstack hacks. These do matter very much because they are used by libc_r and other things. Notes: svn path=/head/; revision=136404
* Rename suser_cred()'s PRISON_ROOT flag to SUSER_ALLOWJAIL. This isColin Percival2004-07-261-1/+1
| | | | | | | | | | | | | | somewhat clearer, but more importantly allows for a consistent naming scheme for suser_cred flags. The old name is still defined, but will be removed in a few days (unless I hear any complaints...) Discussed with: rwatson, scottl Requested by: jhb Notes: svn path=/head/; revision=132653
* Deorbit COMPAT_SUNOS.Poul-Henning Kamp2004-06-111-2/+2
| | | | | | | | We inherited this from the sparc32 port of BSD4.4-Lite1. We have neither a sparc32 port nor a SunOS4.x compatibility desire these days. Notes: svn path=/head/; revision=130344
* Remove advertising clause from University of California Regent's license,Warner Losh2004-04-051-4/+0
| | | | | | | | | per letter dated July 22, 1999. Approved by: core Notes: svn path=/head/; revision=127911
* Correct mostly harmless off-by-one error in getdomainname().Jacques Vidrine2003-09-131-2/+2
| | | | | | | Reviewed by: imp Notes: svn path=/head/; revision=120029
* Fix a logic error in osethostid() that was introduced in rev. 1.34:Tim J. Robbins2003-08-231-3/+4
| | | | | | | | allow hostid to be set when suser() returns 0, not when it returns an error. This would have allowed non-root users to set the host ID. Notes: svn path=/head/; revision=119364
* Use __FBSDID().David E. O'Brien2003-06-111-1/+3
| | | | Notes: svn path=/head/; revision=116182
* more caddr_t removal.Alfred Perlstein2002-06-291-2/+2
| | | | Notes: svn path=/head/; revision=99012
* Change the suser() API to take advantage of td_ucred as well as do aJohn Baldwin2002-04-011-3/+3
| | | | | | | | | | | | | | | general cleanup of the API. The entire API now consists of two functions similar to the pre-KSE API. The suser() function takes a thread pointer as its only argument. The td_ucred member of this thread must be valid so the only valid thread pointers are curthread and a few kernel threads such as thread0. The suser_cred() function takes a pointer to a struct ucred as its first argument and an integer flag as its second argument. The flag is currently only used for the PRISON_ROOT flag. Discussed on: smp@ Notes: svn path=/head/; revision=93593
* KSE Milestone 2Julian Elischer2001-09-121-27/+27
| | | | | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha Notes: svn path=/head/; revision=83366
* Pushdown Giant for: profil(), ntp_adjtime(), ogethostname(),Matthew Dillon2001-09-011-36/+86
| | | | | | | osethostname(), ogethostid(), osethostid() Notes: svn path=/head/; revision=82717
* This is kind of a hack, but it should work. Currently, world is brokenPeter Wemm2001-03-241-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | because libc/rpc/key_call.c references uname(), and ps/print.c also defines uname(), and ps is linked statically. This leads to a symbol clash. The userland uname(3) kinda sucked anyway as the hostname etc was too short. And since the libc rpc interface now uses the utsname.nodename which gets truncated, I was tempted into doing something about it. Create a new userland uname function, called __xuname() which takes an extra argument that allows you to change the size of the fields. uname() becomes a static inline function in sys/utsname.h that passes the extra argument in. struct utsname has its field members expanded by default now in userland. We still provide a 'uname' externally linkable function for things that either think that they ``know'' the utsname format and assume 32 character strings and bypass the include file, or objects that are linked against old libcs. ie: just about every plausible case that I can think of is covered. Should we ever change the default lengths again, a libc major bump should not be required as the size is now passed to the function. XXX the uname(2) in the kernel is for FreeBSD 1.1 binary compatability! All the uname(3) functions that are exported to userland are actually implemented in libc with sysctl. uname(1) uses sysctl directly and does not call uname(3). PR: bin/4688 Notes: svn path=/head/; revision=74729
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* This Implements the mumbled about "Jail" feature.Poul-Henning Kamp1999-04-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a seriously beefed up chroot kind of thing. The process is jailed along the same lines as a chroot does it, but with additional tough restrictions imposed on what the superuser can do. For all I know, it is safe to hand over the root bit inside a prison to the customer living in that prison, this is what it was developed for in fact: "real virtual servers". Each prison has an ip number associated with it, which all IP communications will be coerced to use and each prison has its own hostname. Needless to say, you need more RAM this way, but the advantage is that each customer can run their own particular version of apache and not stomp on the toes of their neighbors. It generally does what one would expect, but setting up a jail still takes a little knowledge. A few notes: I have no scripts for setting up a jail, don't ask me for them. The IP number should be an alias on one of the interfaces. mount a /proc in each jail, it will make ps more useable. /proc/<pid>/status tells the hostname of the prison for jailed processes. Quotas are only sensible if you have a mountpoint per prison. There are no privisions for stopping resource-hogging. Some "#ifdef INET" and similar may be missing (send patches!) If somebody wants to take it from here and develop it into more of a "virtual machine" they should be most welcome! Tools, comments, patches & documentation most welcome. Have fun... Sponsored by: http://www.rndassociates.com/ Run for almost a year by: http://www.servetheweb.com/ Notes: svn path=/head/; revision=46155
* Suser() simplification:Poul-Henning Kamp1999-04-271-4/+4
| | | | | | | | | | | | | | | | | | | | | | 1: s/suser/suser_xxx/ 2: Add new function: suser(struct proc *), prototyped in <sys/proc.h>. 3: s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/ The remaining suser_xxx() calls will be scrutinized and dealt with later. There may be some unneeded #include <sys/cred.h>, but they are left as an exercise for Bruce. More changes to the suser() API will come along with the "jail" code. Notes: svn path=/head/; revision=46112
* Change various syscalls to use size_t arguments instead of u_int.Doug Rabson1998-08-241-3/+6
| | | | | | | | | | | | | Add some overflow checks to read/write (from bde). Change all modifications to vm_page::flags, vm_page::busy, vm_object::flags and vm_object::paging_in_progress to use operations which are not interruptable. Reviewed by: Bruce Evans <bde@zeta.org.au> Notes: svn path=/head/; revision=38517
* Make COMPAT_43 and COMPAT_SUNOS new-style options.Eivind Eklund1997-12-161-1/+3
| | | | Notes: svn path=/head/; revision=31778
* Move the "retval" (3rd) parameter from all syscall functions and putPoul-Henning Kamp1997-11-061-18/+10
| | | | | | | | | | | | | | | it in struct proc instead. This fixes a boatload of compiler warning, and removes a lot of cruft from the sources. I have not removed the /*ARGSUSED*/, they will require some looking at. libkvm, ps and other userland struct proc frobbing programs will need recompiled. Notes: svn path=/head/; revision=30994
* Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are notPeter Wemm1997-02-221-1/+1
| | | | | | | ready for it yet. Notes: svn path=/head/; revision=22975
* Make the long-awaited change from $Id$ to $FreeBSD$Jordan K. Hubbard1997-01-141-1/+1
| | | | | | | | | | | This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise. Notes: svn path=/head/; revision=21673
* Collect all the functioons concerned with rebooting into one placeJulian Elischer1996-08-191-55/+1
| | | | | | | | also add the at_shutdown callout list, and change the one user of the present (broken) method (the vn driver) to use the new scheme. Notes: svn path=/head/; revision=17677
* Removed unnecessary #includes of vm stuff. Most of them were onceBruce Evans1995-12-061-2/+1
| | | | | | | | | | prerequisites for <sys/sysctl.h>. subr_prof.c: Also replaced #include of <sys/user.h> by #include of <sys/resourcevar.h>. Notes: svn path=/head/; revision=12657
* Completed function declarations and/or added prototypes.Bruce Evans1995-12-021-2/+2
| | | | Notes: svn path=/head/; revision=12577
* Remove unused var.Poul-Henning Kamp1995-11-201-2/+2
| | | | Notes: svn path=/head/; revision=12421
* Get rid of domainnamelen.Poul-Henning Kamp1995-11-141-2/+3
| | | | Notes: svn path=/head/; revision=12280
* Restored the (buggy) historical behaviour of getdomainname().Bruce Evans1995-11-121-6/+6
| | | | | | | | Negative name lengths for getdomainname() and setdomainname() were converted to large positive ones by misdeclaring the args struct. Notes: svn path=/head/; revision=12222
* Included <sys/sysproto.h> to get central declarations for syscall argsBruce Evans1995-11-121-1/+18
| | | | | | | | | | | | | structs and prototypes for syscalls. Ifdefed duplicated decentralized declarations of args structs. It's convenient to have this visible but they are hard to maintain. Some are already different from the central declarations. 4.4lite2 puts them in comments in the function headers but I wanted to avoid the large changes for that. Notes: svn path=/head/; revision=12221
* Fixed types of ogethostid() and osethostid(). The args struct namesBruce Evans1995-11-111-6/+9
| | | | | | | | | conflicted with the machine generated ones in <sys/sysproto.h>. Fixed type of oquota(). It didn't even use an args struct. Notes: svn path=/head/; revision=12200
* Make the old compat functions use the sysctl front door, rather thanPoul-Henning Kamp1995-11-091-19/+27
| | | | | | | | crashing through the walls. This should save Peters blood pressure and netscapes uname call. Notes: svn path=/head/; revision=12171
* Removed unused local variable from shutdown_nice()Nate Williams1995-09-061-3/+1
| | | | Notes: svn path=/head/; revision=10593
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