diff options
Diffstat (limited to 'contrib/ipfilter/mls_ipl.c')
| -rw-r--r-- | contrib/ipfilter/mls_ipl.c | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/contrib/ipfilter/mls_ipl.c b/contrib/ipfilter/mls_ipl.c new file mode 100644 index 0000000..ba89346 --- /dev/null +++ b/contrib/ipfilter/mls_ipl.c @@ -0,0 +1,223 @@ +/* + * (C)opyright 1993,1994,1995 by Darren Reed. + * + * Redistribution and use in source and binary forms are permitted + * provided that this notice is preserved and due credit is given + * to the original author and the contributors. + */ +/* + * 29/12/94 Added code from Marc Huber <huber@fzi.de> to allow it to allocate + * its own major char number! Way cool patch! + */ +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/time.h> +#include <sys/file.h> +#include <sys/conf.h> +#include <sys/syslog.h> +#include <sys/buf.h> +#include <sys/param.h> +#include <sys/errno.h> +#include <sys/uio.h> +#include <sys/vnode.h> +#include <sundev/mbvar.h> +#include <sun/autoconf.h> +#include <sun/vddrv.h> +#if defined(sun4c) || defined(sun4m) +# include <sun/openprom.h> +#endif +#include "ipl.h" +#include "ip_compat.h" + + +#if !defined(lint) && defined(LIBC_SCCS) +static char sccsid[] = "@(#)mls_ipl.c 2.6 10/15/95 (C) 1993-1995 Darren Reed"; +static char rcsid[] = "$Id: mls_ipl.c,v 2.0.2.3 1997/03/27 13:45:26 darrenr Exp $"; +#endif + +#ifndef IPL_NAME +#define IPL_NAME "/dev/ipl" +#endif +#define IPL_NAT "/dev/ipnat" +#define IPL_STATE "/dev/ipstate" + +extern int iplattach __P((void)); +extern int iplopen __P((void)); +extern int iplclose __P((void)); +extern int iplioctl __P((void)); +extern int ipldetach __P((void)); +#ifdef IPFILTER_LOG +extern int iplread __P((void)); +#else +#define iplread nulldev +#endif +extern int nulldev __P((void)); +extern int iplidentify __P((void)); +extern int errno; + +extern int nodev __P((void)); + +static int unload __P((void)); +static int ipl_attach __P((void)); +int xxxinit __P((u_int, struct vddrv *, caddr_t, struct vdstat *)); + + +struct cdevsw ipldevsw = +{ + iplopen, iplclose, iplread, nulldev, + iplioctl, nulldev, nulldev, nulldev, + 0, nulldev, +}; + + +struct dev_ops ipl_ops = +{ + 1, + iplidentify, + iplattach, + iplopen, + iplclose, + iplread, + NULL, /* write */ + NULL, /* strategy */ + NULL, /* dump */ + 0, /* psize */ + iplioctl, + NULL, /* reset */ + NULL /* mmap */ +}; + +int ipl_major = 0; + +#ifdef sun4m +struct vdldrv vd = +{ + VDMAGIC_PSEUDO, + IPL_VERSION, + &ipl_ops, + NULL, + &ipldevsw, + 0, + 0, + NULL, + NULL, + NULL, + 0, + 1, +}; +#else /* sun4m */ +struct vdldrv vd = +{ + VDMAGIC_PSEUDO, /* magic */ + IPL_VERSION, +#ifdef sun4c + &ipl_ops, /* dev_ops */ +#else + NULL, /* struct mb_ctlr *mb_ctlr */ + NULL, /* struct mb_driver *mb_driver */ + NULL, /* struct mb_device *mb_device */ + 0, /* num ctlrs */ + 1, /* numdevs */ +#endif /* sun4c */ + NULL, /* bdevsw */ + &ipldevsw, /* cdevsw */ + 0, /* block major */ + 0, /* char major */ +}; +#endif /* sun4m */ + +extern int vd_unuseddev __P((void)); +extern struct cdevsw cdevsw[]; +extern int nchrdev; + +xxxinit(fc, vdp, data, vds) +u_int fc; +struct vddrv *vdp; +caddr_t data; +struct vdstat *vds; +{ + struct vdioctl_load *vdi = (struct vdioctl_load *)data; + + switch (fc) + { + case VDLOAD: + { + struct vdconf *vdc; + if (vdi && vdi->vdi_userconf) + for (vdc = vdi->vdi_userconf; vdc->vdc_type; vdc++) + if (vdc->vdc_type == VDCCHARMAJOR) { + ipl_major = vdc->vdc_data; + break; + } + + if (!ipl_major) { + while (ipl_major < nchrdev && + cdevsw[ipl_major].d_open != vd_unuseddev) + ipl_major++; + if (ipl_major == nchrdev) + return ENODEV; + } + vdp->vdd_vdtab = (struct vdlinkage *)&vd; + vd.Drv_charmajor = ipl_major; + return ipl_attach(); + } + case VDUNLOAD: + return unload(); + case VDSTAT: + return 0; + default: + return EIO; + } +} + +static int unload() +{ + int err; + + err = ipldetach(); + if (!err) + (void) vn_remove(IPL_NAME, UIO_SYSSPACE, FILE); + return err; +} + + +static int ipl_attach() +{ + struct vnode *vp; + struct vattr vattr; + int error = 0, fmode = S_IFCHR|0600; + + error = iplattach(); + if (error) + return error; + (void) vn_remove(IPL_NAME, UIO_SYSSPACE, FILE); + vattr_null(&vattr); + vattr.va_type = MFTOVT(fmode); + vattr.va_mode = (fmode & 07777); + vattr.va_rdev = ipl_major<<8; + + error = vn_create(IPL_NAME, UIO_SYSSPACE, &vattr, EXCL, 0, &vp); + if (error == 0) + VN_RELE(vp); + + (void) vn_remove(IPL_NAT, UIO_SYSSPACE, FILE); + vattr_null(&vattr); + vattr.va_type = MFTOVT(fmode); + vattr.va_mode = (fmode & 07777); + vattr.va_rdev = (ipl_major<<8)|1; + + error = vn_create(IPL_NAT, UIO_SYSSPACE, &vattr, EXCL, 0, &vp); + if (error == 0) + VN_RELE(vp); + + (void) vn_remove(IPL_STATE, UIO_SYSSPACE, FILE); + vattr_null(&vattr); + vattr.va_type = MFTOVT(fmode); + vattr.va_mode = (fmode & 07777); + vattr.va_rdev = (ipl_major<<8)|2; + + error = vn_create(IPL_STATE, UIO_SYSSPACE, &vattr, EXCL, 0, &vp); + if (error == 0) + VN_RELE(vp); + return error; +} |
