disc quotas & MUSH

[unix-history] / usr / src / sys / ufs / lfs / lfs_vnops.c

diff --git a/usr/src/sys/ufs/lfs/lfs_vnops.c b/usr/src/sys/ufs/lfs/lfs_vnops.c
index 01e53b3..ddb9287 100644 (file)
--- a/usr/src/sys/ufs/lfs/lfs_vnops.c
+++ b/usr/src/sys/ufs/lfs/lfs_vnops.c
@@ -1,4 +1,4 @@
-/*     lfs_vnops.c     4.28    82/07/15        */
+/*     lfs_vnops.c     4.29    82/07/22        */

 
 #include "../h/param.h"
 #include "../h/systm.h"
 
 #include "../h/param.h"
 #include "../h/systm.h"


@@ -15,6 +15,7 @@
 #include "../net/in.h"
 #include "../h/efs.h"
 #endif
 #include "../net/in.h"
 #include "../h/efs.h"
 #endif

+#include "../h/quota.h"

 
 chdir()
 {
 
 chdir()
 {


@@ -653,11 +654,24 @@ chmod()
                    (u.u_grps[ip->i_gid/(sizeof(int)*8)] &
                     (1 << ip->i_gid%(sizeof(int)*8))) == 0)
                        uap->fmode &= ~ISGID;
                    (u.u_grps[ip->i_gid/(sizeof(int)*8)] &
                     (1 << ip->i_gid%(sizeof(int)*8))) == 0)
                        uap->fmode &= ~ISGID;

+#if    MUSH
+               if (u.u_quota->q_syflags & QF_UMASK && u.u_uid != 0 &&
+                   (ip->i_mode & IFMT) != IFCHR)
+                       uap->fmode &= ~u.u_cmask;
+#endif

        }
        ip->i_mode |= uap->fmode&07777;
        ip->i_flag |= ICHG;
        if (ip->i_flag&ITEXT && (ip->i_mode&ISVTX)==0)
                xrele(ip);
        }
        ip->i_mode |= uap->fmode&07777;
        ip->i_flag |= ICHG;
        if (ip->i_flag&ITEXT && (ip->i_mode&ISVTX)==0)
                xrele(ip);

+#ifdef MELB
+       if ((ip->i_mode & ISUID) && ip->i_uid == 0)
+               printf("%s: ino %d (%s) setuid root\n"
+                   , getfs(ip->i_dev)->s_fsmnt
+                   , ip->i_number
+                   , u.u_dent.d_name
+               );
+#endif

        iput(ip);
 }
 
        iput(ip);
 }
 


@@ -669,6 +683,9 @@ chown()
                int     uid;
                int     gid;
        } *uap;
                int     uid;
                int     gid;
        } *uap;

+#if    QUOTA
+       register long change;
+#endif

 
        uap = (struct a *)u.u_ap;
        if (!suser() || (ip = owner(0)) == NULL)
 
        uap = (struct a *)u.u_ap;
        if (!suser() || (ip = owner(0)) == NULL)


@@ -685,6 +702,35 @@ chown()
                u.u_dirp = (caddr_t)u.u_arg[0];
                ip = owner(0);
        }
                u.u_dirp = (caddr_t)u.u_arg[0];
                ip = owner(0);
        }

+#endif
+#if    QUOTA
+       /*
+        * This doesn't allow for holes in files (which hopefully don't
+        * happen often in files that we chown), and is not accurate anyway
+        * (eg: it totally ignores 3 level indir blk files - but hopefully
+        * noone who can make a file that big will have a quota)
+        */
+       if (ip->i_uid == uap->uid)
+               change = 0;
+       else {
+               register struct fs *fs = ip->i_fs;
+
+               if (ip->i_size > (change = NDADDR * fs->fs_bsize)) {
+                       register off_t size;
+
+                       size = blkroundup(fs, ip->i_size) - change;
+                       change += size;
+                       change += fs->fs_bsize;
+                       /* This assumes NIADDR <= 2 */
+                       if (size > NINDIR(fs) * fs->fs_bsize)
+                               change += fs->fs_bsize;
+               } else
+                       change = fragroundup(fs, ip->i_size);
+               change /= DEV_BSIZE;
+       }
+       chkdq(ip, -change, 1);
+       chkiq(ip->i_dev, ip, ip->i_uid, 1);
+       dqrele(ip->i_dquot);

 #endif
        /*
         * keep uid/gid's in sane range - no err, so chown(file, uid, -1)
 #endif
        /*
         * keep uid/gid's in sane range - no err, so chown(file, uid, -1)


@@ -697,6 +743,11 @@ chown()
        ip->i_flag |= ICHG;
        if (u.u_ruid != 0)
                ip->i_mode &= ~(ISUID|ISGID);
        ip->i_flag |= ICHG;
        if (u.u_ruid != 0)
                ip->i_mode &= ~(ISUID|ISGID);

+#if    QUOTA
+       ip->i_dquot = inoquota(ip);
+       chkdq(ip, change, 1);
+       chkiq(ip->i_dev, NULL, uap->uid, 1);
+#endif

        iput(ip);
 }
 
        iput(ip);
 }