958b25be50
- Revise VFS-FS protocol and update VFS/MFS/ISOFS accordingly.
- Clean up MFS by removing old, dead code (backwards compatibility is broken by
the new VFS-FS protocol, anyway) and rewrite other parts. Also, make sure all
functions have proper banners and prototypes.
- VFS should always provide a (syntactically) valid path to the FS; no need for
the FS to do sanity checks when leaving/entering mount points.
- Fix several bugs in MFS:
- Several path lookup bugs in MFS.
- A link can be too big for the path buffer.
- A mountpoint can become inaccessible when the creation of a new inode
fails, because the inode already exists and is a mountpoint.
- Introduce support for supplemental groups.
- Add test 46 to test supplemental group functionality (and removed obsolete
suppl. tests from test 2).
- Clean up VFS (not everything is done yet).
- ISOFS now opens device read-only. This makes the -r flag in the mount command
unnecessary (but will still report to be mounted read-write).
- Introduce PipeFS. PipeFS is a new FS that handles all anonymous and
named pipes. However, named pipes still reside on the (M)FS, as they are part
of the file system on disk. To make this work VFS now has a concept of
'mapped' inodes, which causes read, write, truncate and stat requests to be
redirected to the mapped FS, and all other requests to the original FS.
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* The following names are synonyms for the variables in the input message. */
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#define addr m1_i3
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#define buffer m1_p1
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#define child_endpt m1_i2
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#define co_mode m1_i1
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#define fd m1_i1
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#define fd2 m1_i2
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#define group m1_i3
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#define ls_fd m2_i1
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#define mk_mode m1_i2
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#define mk_z0 m1_i3
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#define mode m3_i2
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#define c_mode m1_i3
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#define c_name m1_p1
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#define name m3_p1
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#define flength m2_l1
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#define name1 m1_p1
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#define name2 m1_p2
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#define name_length m3_i1
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#define name1_length m1_i1
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#define name2_length m1_i2
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#define nbytes m1_i2
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#define owner m1_i2
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#define pathname m3_ca1
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#define pid m1_i3
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#define ENDPT m1_i1
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#define offset_lo m2_l1
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#define offset_high m2_l2
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#define ctl_req m4_l1
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#define driver_nr m4_l2
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#define dev_nr m4_l3
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#define dev_style m4_l4
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#define m_force m4_l5
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#define rd_only m1_i3
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#define request m1_i2
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#define sig m1_i2
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#define endpt1 m1_i1
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#define fs_endpt m1_p3
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#define tp m2_l1
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#define utime_actime m2_l1
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#define utime_modtime m2_l2
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#define utime_file m2_p1
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#define utime_length m2_i1
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#define utime_strlen m2_i2
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#define whence m2_i2
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#define svrctl_req m2_i1
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#define svrctl_argp m2_p1
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#define info_what m1_i1
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#define info_where m1_p1
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#define md_label m2_p1
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#define md_label_len m2_l1
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#define md_major m2_i1
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#define md_style m2_i2
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#define md_force m2_i3
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/* The following names are synonyms for the variables in the output message. */
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#define reply_type m_type
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#define reply_l1 m2_l1
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#define reply_l2 m2_l2
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#define reply_i1 m1_i1
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#define reply_i2 m1_i2
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