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[Bug-xorriso] documents, etc. (Re: building libisofs-1.4.4, libburn-1.4
From: |
SASANO Takayoshi |
Subject: |
[Bug-xorriso] documents, etc. (Re: building libisofs-1.4.4, libburn-1.4.4, libisoburn-1.4.4 on OpenBSD) |
Date: |
Tue, 02 Aug 2016 05:45:30 +0900 |
User-agent: |
Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (Gojō) APEL/10.8 EasyPG/1.0.0 Emacs/24.5 (x86_64-unknown-openbsd) MULE/6.0 (HANACHIRUSATO) |
Hi,
Before testing no-immed-bit version of xorriso, I have to do my homework.
Details are attached at the end of this mail.
> more things to check for documentation and build system:
> - What permissions are needed to operate a drive ?
Simply add OpenBSD next to NetBSD.
> - How to persistently set these permissions ?
NetBSD/OpenBSD no longer have group "floppy".
Please use "operator" instead.
NetBSD uses /dev/cd0d, OpenBSD uses /dev/cd0c.
~ ~
> - Weren't there preparations necessary for #include and linking ?
OpenBSD needs to add path to /usr/local/include and /usr/local/lib,
respectively.
> - In what range of OpenBSD versions is libburn/sg-netbsd.c supposed to work ?
We are now testing with OpenBSD-5.9, so this version and later.
> - Are there special precautions needed to mount regular files ?
> - How to mount a ISO 9660 CD/DVD/BD with offset ?
These are same as NetBSD.
But,
> /sbin/mount_cd9660 -o noexec,nosuid -s 0 /dev/cd0
> mount the CD drive which has burner address /dev/rcd0c ?
the answer of this question is "only /dev/cd0c is accepted".
# /sbin/mount_cd9660 -o noexec,nosuid -s 0 /dev/rcd0c /mnt
mount_cd9660: /dev/rcd0c on /mnt: Block device required
# /sbin/mount_cd9660 -o noexec,nosuid -s 0 /dev/cd0c /mnt
# umount /mnt
# /sbin/mount_cd9660 -o noexec,nosuid -s 0 /dev/rcd0 /mnt
mount_cd9660: /dev/rcd0 on /mnt: No such file or directory
# /sbin/mount_cd9660 -o noexec,nosuid -s 0 /dev/cd0 /mnt
mount_cd9660: /dev/cd0 on /mnt: No such file or directory
#
I haven't tested with multi session ISO, sorry.
--
SASANO Takayoshi <address@hidden>
-----
The spots where the answers will matter are:
---------------------------------------------------------------------
What permissions are needed to operate a drive ?
---------------------------------------------------------------------
libisoburn-*/README:
"On Linux, FreeBSD, NetBSD, OpenBSD this means -rw-permissions, even if
only reading is intended. On Solaris one needs privileges "basic,sys_devices"
and r-permission,
"
libisoburn-*/xorriso/README_gnu_xorriso:
"On Linux, FreeBSD, NetBSD, and OpenBSD, rw-permissions are needed.
On Solaris, the privilege "sys_devices" and r-permission are needed."
libisoburn-*/xorriso/xorrecord.texi:
"On GNU/Linux, FreeBSD, NetBSD, and OpenBSD, the user needs rw-permission
for the device file."
libisoburn-*/xorriso/xorriso.texi:
"On Linux, FreeBSD, NetBSD, or OpenBSD consider to give rw-permissions to
those users or groups which shall be able to use the drives with
@command{xorriso}."
libisoburn-*/xorriso/xorriso_eng.html:
"GNU/Linux, FreeBSD, NetBSD, OpenBSD demand rw-permission."
libburn-*/cdrskin/README:
"On FreeBSD, device rw-permissions are to be set in /etc/devfs.rules.
On Solaris, pfexec privileges may be restricted to "basic,sys_devices".
On NetBSD and OpenBSD, rw-permission may be granted by chmod a+rw /dev/rcd?d."
libburn-*/cdrskin/README:
"Linux, FreeBSD, NetBSD and OpenBSD demand rw-permission."
libburn-*/cdrskin/cdrskin_eng.html
"Linux, FreeBSD, NetBSD and OpenBSD demand rw-permission."
---------------------------------------------------------------------
How to persistently set these permissions ?
---------------------------------------------------------------------
libisoburn-*/xorriso/README_gnu_xorriso:
libburn-*/cdrskin/README:
"On NetBSD:
Allow rw-access to the drives
chgrp operator /dev/rcd[01]d
chmod g+rw /dev/rcd[01]d
"
"On OpenBSD:
Allow rw-access to the drives
chgrp operator /dev/rcd[01]c
chmod g+rw /dev/rcd[01]c
"
---------------------------------------------------------------------
Weren't there preparations necessary for #include and linking ?
---------------------------------------------------------------------
libisoburn-*/acinclude.m4 has:
netbsd*)
LDFLAGS="$LDFLAGS -L/usr/local/lib -L/usr/pkg/lib"
CPPFLAGS="$CPPFLAGS -I/usr/local/include -I/usr/pkg/include"
openbsd*)
LDFLAGS="$LDFLAGS -L/usr/local/lib"
CPPFLAGS="$CPPFLAGS -I/usr/local/include"
---------------------------------------------------------------------
In what range of OpenBSD versions is libburn/sg-netbsd.c supposed to work ?
---------------------------------------------------------------------
(not changed)
libburn-*/libburn/sg-netbsd.c:
"Present implementation: NetBSD 6, ioctl SCIOCCOMMAND
OpenBSD 5.9, ioctl SCIOCCOMMAND
"
libburn-*/libburn/os-netbsd.h
" Operating system specific libburn definitions and declarations. Included
by os.h in case of compilation for
NetBSD 6 or OpenBSD 5.9
with MMC transport adapter sg-netbsd.c
"
(This state has been preliminarily commited by:
http://libburnia-project.org/changeset/5723
)
---------------------------------------------------------------------
Are there special precautions needed to mount regular files ?
---------------------------------------------------------------------
(not changed)
libisoburn-*/xorriso/disk_ops.c:
Xorriso_msgs_submit(xorriso, 0,
"Detected regular file as mount device with BSD style command.",
0, "FAILURE", 0);
if(sys_code == 2) {
Xorriso_msgs_submit(xorriso, 0,
"Command mdconfig -a -t vnode -f can create a device node which uses the file",
0, "HINT", 0);
} else {
Xorriso_msgs_submit(xorriso, 0,
"Command vnconfig -c vndX can create a device node which uses the file",
0, "HINT", 0);
}
(sys_code==2 is FreeBSD, syscode==3 is NetBSD.)
---------------------------------------------------------------------
How to mount a ISO 9660 CD/DVD/BD with offset ?
---------------------------------------------------------------------
(not changed)
libisoburn-*/xorriso/disk_ops.c:
if(sys_code == 3 && strncmp(devadr, "/dev/rcd", 8) == 0) {
sprintf(cooked_dev, "/dev/cd%s", devadr + 8);
eff_dev= cooked_dev;
}
sprintf(form,
"%smount_cd9660 -o noexec,nosuid -s %%sbsector%% %%device%% %s",
(flag & 1 ? "/sbin/" : ""), Text_shellsafe(cpt, sfe, 0));
I.e. would
/sbin/mount_cd9660 -o noexec,nosuid -s 0 /dev/cd0
mount the CD drive which has burner address /dev/rcd0c ?
(Best would be a test with a multi session ISO and non-0 -s argument.)
---------------------------------------------------------------------
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SASANO Takayoshi <=