/* $OpenBSD: kern_info_43.c,v 1.15 2003/08/15 20:32:15 tedu Exp $ */ /* $NetBSD: kern_info_43.c,v 1.5 1996/02/04 02:02:22 christos Exp $ */ /* * Copyright (c) 1982, 1986, 1991, 1993 * The Regents of the University of California. 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. * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * @(#)subr_xxx.c 8.1 (Berkeley) 6/10/93 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int compat_43_sys_getdtablesize(p, v, retval) struct proc *p; void *v; register_t *retval; { *retval = min((int)p->p_rlimit[RLIMIT_NOFILE].rlim_cur, maxfiles); return (0); } /* ARGSUSED */ int compat_43_sys_gethostid(p, v, retval) struct proc *p; void *v; register_t *retval; { *(int32_t *)retval = hostid; return (0); } /*ARGSUSED*/ int compat_43_sys_gethostname(p, v, retval) struct proc *p; void *v; register_t *retval; { struct compat_43_sys_gethostname_args /* { syscallarg(char *) hostname; syscallarg(u_int) len; } */ *uap = v; int name; size_t sz; name = KERN_HOSTNAME; sz = SCARG(uap, len); return (kern_sysctl(&name, 1, SCARG(uap, hostname), &sz, 0, 0, p)); } #define KINFO_PROC (0<<8) #define KINFO_RT (1<<8) #define KINFO_VNODE (2<<8) #define KINFO_FILE (3<<8) #define KINFO_METER (4<<8) #define KINFO_LOADAVG (5<<8) #define KINFO_CLOCKRATE (6<<8) #define KINFO_BSDI_SYSINFO (101<<8) /* * The string data is appended to the end of the bsdi_si structure during * copyout. The "char *" offsets in the bsdi_si struct are relative to the * base of the bsdi_si struct. */ struct bsdi_si { char *machine; char *cpu_model; long ncpu; long cpuspeed; long hwflags; u_long physmem; u_long usermem; u_long pagesize; char *ostype; char *osrelease; long os_revision; long posix1_version; char *version; long hz; long profhz; int ngroups_max; long arg_max; long open_max; long child_max; struct timeval boottime; char *hostname; }; /* Non-standard BSDI extension - only present on their 4.3 net-2 releases */ #define KINFO_BSDI_SYSINFO (101<<8) /* * XXX this is bloat, but I hope it's better here than on the potentially * limited kernel stack... -Peter */ struct { char *bsdi_machine; /* "i386" on BSD/386 */ char *pad0; long pad1; long pad2; long pad3; u_long pad4; u_long pad5; u_long pad6; char *bsdi_ostype; /* "BSD/386" on BSD/386 */ char *bsdi_osrelease; /* "1.1" on BSD/386 */ long pad7; long pad8; char *pad9; long pad10; long pad11; int pad12; long pad13; quad_t pad14; long pad15; struct timeval pad16; /* we dont set this, because BSDI's uname used gethostname() instead */ char *bsdi_hostname; /* hostname on BSD/386 */ /* the actual string data is appended here */ } bsdi_si; /* * this data is appended to the end of the bsdi_si structure during copyout. * The "char *" offsets are relative to the base of the bsdi_si struct. * This contains "OpenBSD\01.2-BUILT-nnnnnn\0i386\0", and these strings * should not exceed the length of the buffer here... (or else!! :-) */ char bsdi_strings[80]; /* It had better be less than this! */ int compat_43_sys_getkerninfo(p, v, retval) struct proc *p; void *v; register_t *retval; { register struct compat_43_sys_getkerninfo_args /* { syscallarg(int) op; syscallarg(char *) where; syscallarg(int *) size; syscallarg(int) arg; } */ *uap = v; int error, name[5]; size_t size; extern char machine[]; if (SCARG(uap, size) && (error = copyin((caddr_t)SCARG(uap, size), (caddr_t)&size, sizeof(size)))) return (error); switch (SCARG(uap, op) & 0xff00) { case KINFO_RT: name[0] = PF_ROUTE; name[1] = 0; name[2] = (SCARG(uap, op) & 0xff0000) >> 16; name[3] = SCARG(uap, op) & 0xff; name[4] = SCARG(uap, arg); error = net_sysctl(name, 5, SCARG(uap, where), &size, NULL, 0, p); break; case KINFO_VNODE: name[0] = KERN_VNODE; error = kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); break; case KINFO_PROC: name[0] = KERN_PROC; name[1] = SCARG(uap, op) & 0xff; name[2] = SCARG(uap, arg); error = kern_sysctl(name, 3, SCARG(uap, where), &size, NULL, 0, p); break; case KINFO_FILE: name[0] = KERN_FILE; error = kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); break; case KINFO_METER: name[0] = VM_METER; error = uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); break; case KINFO_LOADAVG: name[0] = VM_LOADAVG; error = uvm_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); break; case KINFO_CLOCKRATE: name[0] = KERN_CLOCKRATE; error = kern_sysctl(name, 1, SCARG(uap, where), &size, NULL, 0, p); break; case KINFO_BSDI_SYSINFO: { /* * this is pretty crude, but it's just enough for uname() * from BSDI's 1.x libc to work. */ u_int needed; u_int left; char *s; bzero((char *)&bsdi_si, sizeof(bsdi_si)); bzero(bsdi_strings, sizeof(bsdi_strings)); s = bsdi_strings; bsdi_si.bsdi_ostype = ((char *)(s - bsdi_strings)) + sizeof(bsdi_si); strlcpy(s, ostype, bsdi_strings + sizeof bsdi_strings - s); s += strlen(s) + 1; bsdi_si.bsdi_osrelease = ((char *)(s - bsdi_strings)) + sizeof(bsdi_si); strlcpy(s, osrelease, bsdi_strings + sizeof bsdi_strings - s); s += strlen(s) + 1; bsdi_si.bsdi_machine = ((char *)(s - bsdi_strings)) + sizeof(bsdi_si); strlcpy(s, machine, bsdi_strings + sizeof bsdi_strings - s); s += strlen(s) + 1; needed = sizeof(bsdi_si) + (s - bsdi_strings); if (SCARG(uap, where) == NULL) { /* process is asking how much buffer to supply.. */ size = needed; error = 0; break; } /* if too much buffer supplied, trim it down */ if (size > needed) size = needed; /* how much of the buffer is remaining */ left = size; if ((error = copyout((char *)&bsdi_si, SCARG(uap, where), left)) != 0) break; /* is there any point in continuing? */ if (left > sizeof(bsdi_si)) left -= sizeof(bsdi_si); else break; error = copyout(&bsdi_strings, SCARG(uap, where) + sizeof(bsdi_si), left); break; } default: return (EOPNOTSUPP); } if (error) return (error); *retval = size; if (SCARG(uap, size)) error = copyout((caddr_t)&size, (caddr_t)SCARG(uap, size), sizeof(size)); return (error); } /* ARGSUSED */ int compat_43_sys_sethostid(p, v, retval) struct proc *p; void *v; register_t *retval; { struct compat_43_sys_sethostid_args /* { syscallarg(int32_t) hostid; } */ *uap = v; int error; if ((error = suser(p, 0)) != 0) return (error); hostid = SCARG(uap, hostid); return (0); } /* ARGSUSED */ int compat_43_sys_sethostname(p, v, retval) struct proc *p; void *v; register_t *retval; { struct compat_43_sys_sethostname_args *uap = v; int name; int error; if ((error = suser(p, 0)) != 0) return (error); name = KERN_HOSTNAME; return (kern_sysctl(&name, 1, 0, 0, SCARG(uap, hostname), SCARG(uap, len), p)); }