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Re: [PATCH 09/17] mkfs: use getnum_checked for all ranged parameters

To: Jan ÅulÃk <jtulak@xxxxxxxxxx>
Subject: Re: [PATCH 09/17] mkfs: use getnum_checked for all ranged parameters
From: Brian Foster <bfoster@xxxxxxxxxx>
Date: Fri, 26 Jun 2015 13:17:06 -0400
Cc: xfs@xxxxxxxxxxx, Dave Chinner <dchinner@xxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1434711726-13092-10-git-send-email-jtulak@xxxxxxxxxx>
References: <1434711726-13092-1-git-send-email-jtulak@xxxxxxxxxx> <1434711726-13092-10-git-send-email-jtulak@xxxxxxxxxx>
User-agent: Mutt/1.5.23 (2014-03-12)
On Fri, Jun 19, 2015 at 01:01:58PM +0200, Jan ÅulÃk wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> 
> Now that getnum_checked can handle min/max checking, use this for
> all parameters that take straight numbers and don't require unit
> conversions.
> 
> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> Signed-off-by: Jan ÅulÃk <jtulak@xxxxxxxxxx>
> ---

Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>

>  include/xfs_mkfs.h |   5 +-
>  mkfs/xfs_mkfs.c    | 152 
> +++++++++++++++++++++++++++--------------------------
>  2 files changed, 81 insertions(+), 76 deletions(-)
> 
> diff --git a/include/xfs_mkfs.h b/include/xfs_mkfs.h
> index 996b690..f5639b0 100644
> --- a/include/xfs_mkfs.h
> +++ b/include/xfs_mkfs.h
> @@ -42,8 +42,9 @@
>  
>  #define XFS_AG_BYTES(bblog)  ((long long)BBSIZE << (bblog))
>  #define      XFS_AG_MIN_BYTES        ((XFS_AG_BYTES(15)))    /* 16 MB */
> -#define XFS_AG_MIN_BLOCKS(blog)      ((XFS_AG_BYTES(15)) >> (blog))
> -#define XFS_AG_MAX_BLOCKS(blog)      ((XFS_AG_BYTES(31) - 1) >> (blog))
> +#define      XFS_AG_MAX_BYTES        ((XFS_AG_BYTES(31)))    /* 1 TB */
> +#define XFS_AG_MIN_BLOCKS(blog)      (XFS_AG_MIN_BYTES >> (blog))
> +#define XFS_AG_MAX_BLOCKS(blog)      ((XFS_AG_MAX_BYTES - 1) >> (blog))
>  
>  #define XFS_MAX_AGNUMBER     ((xfs_agnumber_t)(NULLAGNUMBER - 1))
>  
> diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
> index 3803779..332c491 100644
> --- a/mkfs/xfs_mkfs.c
> +++ b/mkfs/xfs_mkfs.c
> @@ -125,6 +125,8 @@ const struct opt_params dopts = {
>       },
>       .subopt_params = {
>               { .index = D_AGCOUNT,
> +               .minval = 1,
> +               .maxval = XFS_MAX_AGNUMBER,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_FILE,
> @@ -139,18 +141,26 @@ const struct opt_params dopts = {
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_SUNIT,
> +               .minval = 0,
> +               .maxval = UINT_MAX,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_SWIDTH,
> +               .minval = 0,
> +               .maxval = UINT_MAX,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_AGSIZE,
> +               .minval = XFS_AG_MIN_BYTES,
> +               .maxval = XFS_AG_MAX_BYTES,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_SU,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_SW,
> +               .minval = 0,
> +               .maxval = UINT_MAX,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_SECTLOG,
> @@ -164,15 +174,23 @@ const struct opt_params dopts = {
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_NOALIGN,
> -               .defaultval = SUBOPT_NEEDS_VAL,
> +               .minval = 1,
> +               .maxval = 1,
> +               .defaultval = 1,
>               },
>               { .index = D_RTINHERIT,
> -               .defaultval = SUBOPT_NEEDS_VAL,
> +               .minval = 1,
> +               .maxval = 1,
> +               .defaultval = 1,
>               },
>               { .index = D_PROJINHERIT,
> +               .minval = 0,
> +               .maxval = UINT_MAX,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = D_EXTSZINHERIT,
> +               .minval = 0,
> +               .maxval = UINT_MAX,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>       },
> @@ -212,15 +230,23 @@ const struct opt_params iopts = {
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = I_MAXPCT,
> +               .minval = 0,
> +               .maxval = 100,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = I_PERBLOCK,
> +               .minval = XFS_MIN_INODE_PERBLOCK,
> +               .maxval = XFS_MAX_BLOCKSIZE / XFS_DINODE_MIN_SIZE,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = I_SIZE,
> +               .minval = XFS_DINODE_MIN_SIZE,
> +               .maxval = XFS_DINODE_MAX_SIZE,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = I_ATTR,
> +               .minval = 0,
> +               .maxval = 2,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = I_PROJID32BIT,
> @@ -262,6 +288,8 @@ const struct opt_params lopts = {
>       },
>       .subopt_params = {
>               { .index = L_AGNUM,
> +               .minval = 0,
> +               .maxval = UINT_MAX,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = L_INTERNAL,
> @@ -273,9 +301,13 @@ const struct opt_params lopts = {
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = L_VERSION,
> +               .minval = 1,
> +               .maxval = 2,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = L_SUNIT,
> +               .minval = BTOBB(XLOG_MIN_RECORD_BSIZE),
> +               .maxval = BTOBB(XLOG_MAX_RECORD_BSIZE),
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = L_SU,
> @@ -335,6 +367,8 @@ const struct opt_params nopts = {
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = N_VERSION,
> +               .minval = 2,
> +               .maxval = 2,
>                 .defaultval = SUBOPT_NEEDS_VAL,
>               },
>               { .index = N_FTYPE,
> @@ -1512,13 +1546,11 @@ main(
>                               switch (getsubopt(&p, (constpp)subopts,
>                                                 &value)) {
>                               case D_AGCOUNT:
> -                                     if (!value || *value == '\0')
> -                                             reqval('d', subopts, D_AGCOUNT);
>                                       if (daflag)
>                                               respec('d', subopts, D_AGCOUNT);
> -                                     agcount = getnum(value, 0, 0, false);
> -                                     if ((__int64_t)agcount <= 0)
> -                                             illegal(value, "d agcount");
> +
> +                                     agcount = getnum_checked(value, &dopts,
> +                                                              D_AGCOUNT);
>                                       daflag = 1;
>                                       break;
>                               case D_AGSIZE:
> @@ -1553,28 +1585,22 @@ main(
>                                       dsize = value;
>                                       break;
>                               case D_SUNIT:
> -                                     if (!value || *value == '\0')
> -                                             reqval('d', subopts, D_SUNIT);
>                                       if (dsunit)
>                                               respec('d', subopts, D_SUNIT);
>                                       if (nodsflag)
>                                               conflict('d', subopts, 
> D_NOALIGN,
>                                                        D_SUNIT);
> -                                     dsunit = getnum(value, 0, 0, false);
> -                                     if (dsunit < 0)
> -                                             illegal(value, "d sunit");
> +                                     dsunit = getnum_checked(value, &dopts,
> +                                                              D_SUNIT);
>                                       break;
>                               case D_SWIDTH:
> -                                     if (!value || *value == '\0')
> -                                             reqval('d', subopts, D_SWIDTH);
>                                       if (dswidth)
>                                               respec('d', subopts, D_SWIDTH);
>                                       if (nodsflag)
>                                               conflict('d', subopts, 
> D_NOALIGN,
>                                                        D_SWIDTH);
> -                                     dswidth = getnum(value, 0, 0, false);
> -                                     if (dswidth < 0)
> -                                             illegal(value, "d swidth");
> +                                     dswidth = getnum_checked(value, &dopts,
> +                                                              D_SWIDTH);
>                                       break;
>                               case D_SU:
>                                       if (!value || *value == '\0')
> @@ -1590,16 +1616,13 @@ main(
>                                               illegal(value, "d su");
>                                       break;
>                               case D_SW:
> -                                     if (!value || *value == '\0')
> -                                             reqval('d', subopts, D_SW);
>                                       if (dsw)
>                                               respec('d', subopts, D_SW);
>                                       if (nodsflag)
>                                               conflict('d', subopts, 
> D_NOALIGN,
>                                                        D_SW);
> -                                     dsw = getnum(value, 0, 0, false);
> -                                     if (dsw < 0)
> -                                             illegal(value, "d sw");
> +                                     dsw = getnum_checked(value, &dopts,
> +                                                              D_SW);
>                                       break;
>                               case D_NOALIGN:
>                                       if (dsu)
> @@ -1645,21 +1668,22 @@ main(
>                                       ssflag = 1;
>                                       break;
>                               case D_RTINHERIT:
> -                                     fsx.fsx_xflags |= \
> -                                             XFS_DIFLAG_RTINHERIT;
> +                                     c = getnum_checked(value, &dopts,
> +                                                        D_RTINHERIT);
> +                                     if (c)
> +                                             fsx.fsx_xflags |=
> +                                                     XFS_DIFLAG_RTINHERIT;
>                                       break;
>                               case D_PROJINHERIT:
> -                                     if (!value || *value == '\0')
> -                                             reqval('d', subopts, 
> D_PROJINHERIT);
> -                                     fsx.fsx_projid = atoi(value);
> -                                     fsx.fsx_xflags |= \
> +                                     fsx.fsx_projid = getnum_checked(value,
> +                                                     &dopts, D_PROJINHERIT);
> +                                     fsx.fsx_xflags |=
>                                               XFS_DIFLAG_PROJINHERIT;
>                                       break;
>                               case D_EXTSZINHERIT:
> -                                     if (!value || *value == '\0')
> -                                             reqval('d', subopts, 
> D_EXTSZINHERIT);
> -                                     fsx.fsx_extsize = atoi(value);
> -                                     fsx.fsx_xflags |= \
> +                                     fsx.fsx_extsize = getnum_checked(value,
> +                                                     &dopts, D_EXTSZINHERIT);
> +                                     fsx.fsx_xflags |=
>                                               XFS_DIFLAG_EXTSZINHERIT;
>                                       break;
>                               default:
> @@ -1694,18 +1718,13 @@ main(
>                                       ilflag = 1;
>                                       break;
>                               case I_MAXPCT:
> -                                     if (!value || *value == '\0')
> -                                             reqval('i', subopts, I_MAXPCT);
>                                       if (imflag)
>                                               respec('i', subopts, I_MAXPCT);
> -                                     imaxpct = getnum(value, 0, 0, false);
> -                                     if (imaxpct < 0 || imaxpct > 100)
> -                                             illegal(value, "i maxpct");
> +                                     imaxpct = getnum_checked(value, &iopts,
> +                                                              I_MAXPCT);
>                                       imflag = 1;
>                                       break;
>                               case I_PERBLOCK:
> -                                     if (!value || *value == '\0')
> -                                             reqval('i', subopts, 
> I_PERBLOCK);
>                                       if (ilflag)
>                                               conflict('i', subopts, I_LOG,
>                                                        I_PERBLOCK);
> @@ -1714,16 +1733,13 @@ main(
>                                       if (isflag)
>                                               conflict('i', subopts, I_SIZE,
>                                                        I_PERBLOCK);
> -                                     inopblock = getnum(value, 0, 0, false);
> -                                     if (inopblock <
> -                                             XFS_MIN_INODE_PERBLOCK ||
> -                                         !ispow2(inopblock))
> +                                     inopblock = getnum_checked(value, 
> &iopts,
> +                                                                I_PERBLOCK);
> +                                     if (!ispow2(inopblock))
>                                               illegal(value, "i perblock");
>                                       ipflag = 1;
>                                       break;
>                               case I_SIZE:
> -                                     if (!value || *value == '\0')
> -                                             reqval('i', subopts, I_SIZE);
>                                       if (ilflag)
>                                               conflict('i', subopts, I_LOG,
>                                                        I_SIZE);
> @@ -1732,19 +1748,17 @@ main(
>                                                        I_SIZE);
>                                       if (isflag)
>                                               respec('i', subopts, I_SIZE);
> -                                     isize = getnum(value, 0, 0, true);
> -                                     if (isize <= 0 || !ispow2(isize))
> +                                     isize = getnum_checked(value, &iopts,
> +                                                            I_SIZE);
> +                                     if (!ispow2(isize))
>                                               illegal(value, "i size");
>                                       inodelog = libxfs_highbit32(isize);
>                                       isflag = 1;
>                                       break;
>                               case I_ATTR:
> -                                     if (!value || *value == '\0')
> -                                             reqval('i', subopts, I_ATTR);
> -                                     c = getnum(value, 0, 0, false);
> -                                     if (c < 0 || c > 2)
> -                                             illegal(value, "i attr");
> -                                     sb_feat.attr_version = c;
> +                                     sb_feat.attr_version =
> +                                             getnum_checked(value, &iopts,
> +                                                            I_ATTR);
>                                       break;
>                               case I_PROJID32BIT:
>                                       sb_feat.projid16bit =
> @@ -1772,15 +1786,12 @@ main(
>                               switch (getsubopt(&p, (constpp)subopts,
>                                                 &value)) {
>                               case L_AGNUM:
> -                                     if (!value || *value == '\0')
> -                                             reqval('l', subopts, L_AGNUM);
>                                       if (laflag)
>                                               respec('l', subopts, L_AGNUM);
>                                       if (ldflag)
>                                               conflict('l', subopts, L_AGNUM, 
> L_DEV);
> -                                     logagno = getnum(value, 0, 0, false);
> -                                     if (logagno < 0)
> -                                             illegal(value, "l agno");
> +                                     logagno = getnum_checked(value, &lopts,
> +                                                              L_AGNUM);
>                                       laflag = 1;
>                                       break;
>                               case L_FILE:
> @@ -1817,13 +1828,10 @@ main(
>                                       lsuflag = 1;
>                                       break;
>                               case L_SUNIT:
> -                                     if (!value || *value == '\0')
> -                                             reqval('l', subopts, L_SUNIT);
>                                       if (lsunit)
>                                               respec('l', subopts, L_SUNIT);
> -                                     lsunit = getnum(value, 0, 0, false);
> -                                     if (lsunit < 0)
> -                                             illegal(value, "l sunit");
> +                                     lsunit = getnum_checked(value, &lopts,
> +                                                              L_SUNIT);
>                                       lsunitflag = 1;
>                                       break;
>                               case L_NAME:
> @@ -1842,14 +1850,11 @@ main(
>                                       xi.logname = value;
>                                       break;
>                               case L_VERSION:
> -                                     if (!value || *value == '\0')
> -                                             reqval('l', subopts, L_VERSION);
>                                       if (lvflag)
>                                               respec('l', subopts, L_VERSION);
> -                                     c = getnum(value, 0, 0, false);
> -                                     if (c < 1 || c > 2)
> -                                             illegal(value, "l version");
> -                                     sb_feat.log_version = c;
> +                                     sb_feat.log_version =
> +                                             getnum_checked(value, &lopts,
> +                                                            L_VERSION);
>                                       lvflag = 1;
>                                       break;
>                               case L_SIZE:
> @@ -1981,11 +1986,10 @@ _("cannot specify both -m crc=1 and -n ftype\n"));
>                                               /* ASCII CI mode */
>                                               sb_feat.nci = true;
>                                       } else {
> -                                             c = getnum(value, 0, 0, false);
> -                                             if (c != 2)
> -                                                     illegal(value,
> -                                                             "n version");
> -                                             sb_feat.dir_version = c;
> +                                             sb_feat.dir_version =
> +                                                     getnum_checked(value,
> +                                                             &nopts,
> +                                                             N_VERSION);
>                                       }
>                                       nvflag = 1;
>                                       break;
> -- 
> 2.1.0
> 
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> xfs@xxxxxxxxxxx
> http://oss.sgi.com/mailman/listinfo/xfs

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