Christopher Haster
f5508a1b6c
This adds LFS3_T_REBUILDGBMAP and friends, and enables incremental gbmap
rebuilds as a part of gc/traversal work:
LFS3_M_REBUILDGBMAP 0x00000400 Rebuild the gbmap
LFS3_GC_REBUILDGBMAP 0x00000400 Rebuild the gbmap
LFS3_I_REBUILDGBMAP 0x00000400 The gbmap is not full
LFS3_T_REBUILDGBMAP 0x00000400 Rebuild the gbmap
On paper, this is more or less identical to repopulating the lookahead
buffer -- traverse the filesystem, mark blocks as in-use, adopt the new
gbmap/lookahead buffer on success -- but a couple nuances make
rebuilding the gbmap a bit trickier:
- Unlike the lookahead buffer, which eagerly zeros in allocation, we
need an explicit zeroing pass before we start marking blocks as
in-use. This means multiple traversals can potentially conflict with
each other, risking the adoption of a clobbered gbmap.
- The gbmap, which stores information on disk, relies on block
allocation and the temporary "in-flight window" defined by allocator
ckpoints to avoid circular block states during gbmap rebuilds. This
makes gbmap rebuilds sensitive to allocator ckpoints, which we
consider more-or-less a noop in other parts of the system.
Though now that I'm writing this, it might have been possible to
instead include gbmap rebuild snapshots in fs traversals... but that
would probably have been much more complicated.
- Rebuilding the gbmap requires writing to disk and is generally much
more expensive/destructive. We want to avoid trying to rebuild the
gbmap when it's not possible to actually make progress.
On top of this, the current trv-clobber system is a delicate,
error-prone mess.
---
To simplify everything related to gbmap rebuilds, I added a new
internal traversal flag: LFS3_t_CKPOINTED:
LFS3_t_CKPOINTED 0x04000000 Filesystem ckpointed during traversal
LFS3_t_CKPOINTED is set, unconditionally, on all open traversals in
lfs3_alloc_ckpoint, and provides a simple, robust mechanism for checking
if _any_ allocator checkpoints have occured since a traversal was
started. Since lfs3_alloc_ckpoint is required before any block
allocation, this provides a strong guarantee that nothing funny happened
to any allocator state during a traversal.
This makes lfs3_alloc_ckpoint a bit less cheap, but the strong
guarantees that allocator state is unmodified during traversal are well
worth it.
This makes both lookahead and gbmap passes simpler, safer, and easier to
reason about.
I'd like to adopt something similar+stronger for LFs3_t_MUTATED, and
reduce this back to two flags, but that can be a future commit.
---
Unfortunately due to the potential for recursion, this ended up reusing
less logic between lfs3_alloc_rebuildgbmap and lfs3_mtree_gc than I had
hoped, but at like the main chunks (lfs3_alloc_remap,
lfs3_gbmap_setbptr, lfs3_alloc_adoptgbmap) could be split out into
common functions.
The result is a decent chunk of code and stack, but the value is high as
incremental gbmap rebuilds are the only option to reduce the latency
spikes introduced by the gbmap allocator (it's not significantly worse
than the lookahead buffer, but both do require traversing the entire
filesystem):
code stack ctx
before: 37164 2352 684
after: 37208 (+0.1%) 2360 (+0.3%) 684 (+0.0%)
code stack ctx
gbmap before: 39708 2376 848
gbmap after: 40100 (+1.0%) 2432 (+2.4%) 848 (+0.0%)
Note the gbmap build is now measured with LFS3_GBMAP=1, instead of
LFS3_YES_GBMAP=1 (maybe-gbmap) as before. This includes the cost of
mkgbmap, lfs3_f_isgbmap, etc.
2139 lines
72 KiB
TOML
2139 lines
72 KiB
TOML
# Advanced mount tests
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after = ['test_mtree', 'test_trvs']
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# test we can mount
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[cases.test_mount_simple]
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code = '''
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lfs3_t lfs3;
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lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
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lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
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lfs3_unmount(&lfs3) => 0;
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'''
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# test that various mount flags don't assert and are returned by
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# lfs3_fs_stat
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[cases.test_mount_flags]
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defines.RDONLY = [false, true]
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defines.FLUSH = [false, true]
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defines.SYNC = [false, true]
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defines.REVDBG = [false, true]
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defines.REVNOISE = [false, true]
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defines.CKPROGS = [false, true]
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defines.CKFETCHES = [false, true]
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defines.CKMETAPARITY = [false, true]
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defines.CKDATACKSUMS = [false, true]
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defines.MKCONSISTENT = [false, true]
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defines.LOOKAHEAD = [false, true]
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defines.REBUILDGBMAP = [false, true]
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defines.COMPACT = [false, true]
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defines.CKMETA = [false, true]
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defines.CKDATA = [false, true]
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if = [
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'LFS3_IFDEF_REVDBG(true, !REVDBG)',
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'LFS3_IFDEF_REVNOISE(true, !REVNOISE)',
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'!REVDBG || !REVNOISE',
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'LFS3_IFDEF_CKPROGS(true, !CKPROGS)',
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'LFS3_IFDEF_CKFETCHES(true, !CKFETCHES)',
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'LFS3_IFDEF_CKMETAPARITY(true, !CKMETAPARITY)',
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'LFS3_IFDEF_CKDATACKSUMS(true, !CKDATACKSUMS)',
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'!RDONLY || !MKCONSISTENT',
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'!RDONLY || !LOOKAHEAD',
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'LFS3_IFDEF_YES_GBMAP(true, !REBUILDGBMAP)',
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'!RDONLY || !REBUILDGBMAP',
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'!RDONLY || !COMPACT',
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]
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code = '''
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lfs3_t lfs3;
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lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
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lfs3_mount(&lfs3,
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((RDONLY) ? LFS3_M_RDONLY : LFS3_M_RDWR)
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| ((FLUSH) ? LFS3_M_FLUSH : 0)
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| ((SYNC) ? LFS3_M_SYNC : 0)
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| ((REVDBG) ? LFS3_IFDEF_REVDBG(LFS3_M_REVDBG, -1) : 0)
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| ((REVNOISE) ? LFS3_IFDEF_REVNOISE(LFS3_M_REVNOISE, -1) : 0)
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| ((CKPROGS) ? LFS3_IFDEF_CKPROGS(LFS3_M_CKPROGS, -1) : 0)
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| ((CKFETCHES) ? LFS3_IFDEF_CKFETCHES(LFS3_M_CKFETCHES, -1) : 0)
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| ((CKMETAPARITY)
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? LFS3_IFDEF_CKMETAPARITY(LFS3_M_CKMETAPARITY, -1)
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: 0)
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| ((CKDATACKSUMS)
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? LFS3_IFDEF_CKDATACKSUMS(LFS3_M_CKDATACKSUMS, -1)
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: 0)
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| ((MKCONSISTENT) ? LFS3_M_MKCONSISTENT : 0)
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| ((LOOKAHEAD) ? LFS3_M_LOOKAHEAD : 0)
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| ((REBUILDGBMAP)
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? LFS3_IFDEF_GBMAP(LFS3_M_REBUILDGBMAP, -1)
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: 0)
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| ((COMPACT) ? LFS3_M_COMPACT : 0)
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| ((CKMETA) ? LFS3_M_CKMETA : 0)
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| ((CKDATA) ? LFS3_M_CKDATA : 0),
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CFG) => 0;
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// lfs3_fs_stat only returns some flags
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struct lfs3_fsinfo fsinfo;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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((RDONLY) ? LFS3_I_RDONLY : 0)
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| ((FLUSH) ? LFS3_I_FLUSH : 0)
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| ((SYNC) ? LFS3_I_SYNC : 0)
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| ((REVDBG) ? LFS3_IFDEF_REVDBG(LFS3_M_REVDBG, -1) : 0)
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| ((REVNOISE) ? LFS3_IFDEF_REVNOISE(LFS3_M_REVNOISE, -1) : 0)
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| ((CKPROGS) ? LFS3_IFDEF_CKPROGS(LFS3_I_CKPROGS, -1) : 0)
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| ((CKFETCHES) ? LFS3_IFDEF_CKFETCHES(LFS3_I_CKFETCHES, -1) : 0)
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| ((CKMETAPARITY)
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? LFS3_IFDEF_CKMETAPARITY(LFS3_I_CKMETAPARITY, -1)
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: 0)
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| ((CKDATACKSUMS)
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? LFS3_IFDEF_CKDATACKSUMS(LFS3_I_CKDATACKSUMS, -1)
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: 0)
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| ((!MKCONSISTENT) ? LFS3_I_MKCONSISTENT : 0)
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| ((!LOOKAHEAD) ? LFS3_I_LOOKAHEAD : 0)
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| ((!COMPACT) ? LFS3_I_COMPACT : 0)
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// note ckdata implies ckmeta
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| ((!CKMETA && !CKDATA) ? LFS3_I_CKMETA : 0)
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| ((!CKDATA) ? LFS3_I_CKDATA : 0)
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| LFS3_IFDEF_YES_GBMAP(LFS3_I_GBMAP, 0)));
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lfs3_unmount(&lfs3) => 0;
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'''
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# test that various format flags don't assert or anything
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#
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# these end up passed to mount internally
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[cases.test_mount_format_flags]
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defines.REVDBG = [false, true]
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defines.REVNOISE = [false, true]
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defines.CKPROGS = [false, true]
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defines.CKFETCHES = [false, true]
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defines.CKMETAPARITY = [false, true]
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defines.CKDATACKSUMS = [false, true]
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defines.CKMETA = [false, true]
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defines.CKDATA = [false, true]
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defines.GBMAP = [false, true]
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if = [
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'LFS3_IFDEF_REVDBG(true, !REVDBG)',
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'LFS3_IFDEF_REVNOISE(true, !REVNOISE)',
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'!REVDBG || !REVNOISE',
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'LFS3_IFDEF_CKPROGS(true, !CKPROGS)',
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'LFS3_IFDEF_CKFETCHES(true, !CKFETCHES)',
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'LFS3_IFDEF_CKMETAPARITY(true, !CKMETAPARITY)',
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'LFS3_IFDEF_CKDATACKSUMS(true, !CKDATACKSUMS)',
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'LFS3_IFDEF_GBMAP(true, !GBMAP)',
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]
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code = '''
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lfs3_t lfs3;
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lfs3_format(&lfs3,
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LFS3_F_RDWR
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| ((REVDBG) ? LFS3_IFDEF_REVDBG(LFS3_F_REVDBG, -1) : 0)
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| ((REVNOISE) ? LFS3_IFDEF_REVNOISE(LFS3_F_REVNOISE, -1) : 0)
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| ((CKPROGS) ? LFS3_IFDEF_CKPROGS(LFS3_F_CKPROGS, -1) : 0)
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| ((CKFETCHES) ? LFS3_IFDEF_CKFETCHES(LFS3_F_CKFETCHES, -1) : 0)
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| ((CKMETAPARITY)
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? LFS3_IFDEF_CKMETAPARITY(LFS3_F_CKMETAPARITY, -1)
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: 0)
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| ((CKDATACKSUMS)
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? LFS3_IFDEF_CKDATACKSUMS(LFS3_F_CKDATACKSUMS, -1)
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: 0)
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| ((CKMETA) ? LFS3_F_CKMETA : 0)
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| ((CKDATA) ? LFS3_F_CKDATA : 0)
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| ((GBMAP) ? LFS3_IFDEF_GBMAP(LFS3_F_GBMAP, -1) : 0),
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CFG) => 0;
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lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
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// test that format-only flags are read correctly
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struct lfs3_fsinfo fsinfo;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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LFS3_I_MKCONSISTENT
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| LFS3_I_LOOKAHEAD
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| LFS3_I_COMPACT
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| LFS3_I_CKMETA
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| LFS3_I_CKDATA
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| LFS3_IFDEF_YES_GBMAP(
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LFS3_I_GBMAP,
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(GBMAP) ? LFS3_IFDEF_GBMAP(LFS3_I_GBMAP, -1) : 0)));
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lfs3_unmount(&lfs3) => 0;
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'''
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# test that on-mount traversals do what they say they do
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[cases.test_mount_t_lookahead]
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defines.CKMETA = [false, true]
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defines.CKDATA = [false, true]
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code = '''
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lfs3_t lfs3;
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lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
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// by default we need a lookahead scan
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lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
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struct lfs3_fsinfo fsinfo;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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LFS3_I_MKCONSISTENT
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| LFS3_I_LOOKAHEAD
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| LFS3_I_COMPACT
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| LFS3_I_CKMETA
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| LFS3_I_CKDATA
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| LFS3_IFDEF_YES_GBMAP(LFS3_I_GBMAP, 0)));
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lfs3_unmount(&lfs3) => 0;
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// with LFS3_M_LOOKAHEAD, mount performs a lookahead scan
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lfs3_mount(&lfs3,
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LFS3_M_RDWR
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| LFS3_M_LOOKAHEAD
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| ((CKMETA) ? LFS3_M_CKMETA : 0)
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| ((CKDATA) ? LFS3_M_CKDATA : 0),
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CFG) => 0;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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LFS3_I_MKCONSISTENT
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| LFS3_I_COMPACT
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// note ckdata implies ckmeta
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| ((!CKMETA && !CKDATA) ? LFS3_I_CKMETA : 0)
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| ((!CKDATA) ? LFS3_I_CKDATA : 0)
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| LFS3_IFDEF_YES_GBMAP(LFS3_I_GBMAP, 0)));
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lfs3_unmount(&lfs3) => 0;
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'''
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[cases.test_mount_t_rebuildgbmap]
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ifdef = 'LFS3_GBMAP'
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defines.CKMETA = [false, true]
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defines.CKDATA = [false, true]
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defines.SIZE = [
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'BLOCK_SIZE/2',
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'BLOCK_SIZE',
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'2*BLOCK_SIZE',
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'8*BLOCK_SIZE',
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]
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code = '''
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lfs3_t lfs3;
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lfs3_format(&lfs3, LFS3_F_RDWR | LFS3_F_GBMAP, CFG) => 0;
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uint32_t prng = 42;
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// gbmap is persistant, so by default we _don't_ need a gbmap scan
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lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
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struct lfs3_fsinfo fsinfo;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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LFS3_I_MKCONSISTENT
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| LFS3_I_LOOKAHEAD
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| LFS3_I_COMPACT
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| LFS3_I_CKMETA
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| LFS3_I_CKDATA
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| LFS3_IFDEF_GBMAP(LFS3_I_GBMAP, 0)));
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// write to a file
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lfs3_file_t file;
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lfs3_file_open(&lfs3, &file, "jellyfish",
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LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
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uint8_t wbuf[SIZE];
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for (lfs3_size_t j = 0; j < SIZE; j++) {
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wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
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}
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lfs3_file_write(&lfs3, &file, wbuf, SIZE) => SIZE;
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lfs3_file_close(&lfs3, &file) => 0;
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lfs3_unmount(&lfs3) => 0;
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// but if we allocated any blocks our gbmap will be inexhaustive
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lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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LFS3_I_MKCONSISTENT
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| LFS3_I_LOOKAHEAD
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| LFS3_I_REBUILDGBMAP
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| LFS3_I_COMPACT
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| LFS3_I_CKMETA
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| LFS3_I_CKDATA
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| LFS3_IFDEF_GBMAP(LFS3_I_GBMAP, 0)));
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lfs3_unmount(&lfs3) => 0;
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// with LFS3_M_REBUILDGBMAP, mount performs a gbmap rebuild
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lfs3_mount(&lfs3,
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LFS3_M_RDWR
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| LFS3_M_LOOKAHEAD
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| LFS3_M_REBUILDGBMAP
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| ((CKMETA) ? LFS3_M_CKMETA : 0)
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| ((CKDATA) ? LFS3_M_CKDATA : 0),
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CFG) => 0;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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LFS3_I_MKCONSISTENT
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| LFS3_I_COMPACT
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// note ckdata implies ckmeta
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| ((!CKMETA && !CKDATA) ? LFS3_I_CKMETA : 0)
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| ((!CKDATA) ? LFS3_I_CKDATA : 0)
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| LFS3_IFDEF_GBMAP(LFS3_I_GBMAP, 0)));
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lfs3_unmount(&lfs3) => 0;
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'''
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[cases.test_mount_t_compact]
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defines.LOOKAHEAD = [false, true]
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defines.CKMETA = [false, true]
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defines.CKDATA = [false, true]
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defines.SIZE = [
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'FILE_CACHE_SIZE/2',
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'2*FILE_CACHE_SIZE',
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'BLOCK_SIZE/2',
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'BLOCK_SIZE',
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'2*BLOCK_SIZE',
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'8*BLOCK_SIZE',
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]
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# set compact thresh to minimum
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defines.GC_COMPACT_THRESH = 'BLOCK_SIZE/2'
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code = '''
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lfs3_t lfs3;
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lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
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uint32_t prng = 42;
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// first lets create a compactable filesystem
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lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
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// write to our mdir until >gc_compact_thresh full
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lfs3_file_t file;
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lfs3_file_open(&lfs3, &file, "jellyfish",
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LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
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// hack, don't use the internals like this
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uint8_t wbuf[SIZE];
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while ((file.b.h.mdir.r.eoff & 0x7fffffff) <= GC_COMPACT_THRESH) {
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lfs3_file_rewind(&lfs3, &file) => 0;
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for (lfs3_size_t j = 0; j < SIZE; j++) {
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wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
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}
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lfs3_file_write(&lfs3, &file, wbuf, SIZE) => SIZE;
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lfs3_file_sync(&lfs3, &file) => 0;
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}
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lfs3_file_close(&lfs3, &file) => 0;
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lfs3_unmount(&lfs3) => 0;
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// by default mount does not compact
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lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
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struct lfs3_fsinfo fsinfo;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
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assert(fsinfo.flags == (
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LFS3_I_MKCONSISTENT
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| LFS3_I_LOOKAHEAD
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| LFS3_IFDEF_YES_GBMAP(
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(SIZE >= BLOCK_SIZE/4) ? LFS3_I_REBUILDGBMAP : 0,
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0)
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| LFS3_I_COMPACT
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| LFS3_I_CKMETA
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| LFS3_I_CKDATA
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| LFS3_IFDEF_YES_GBMAP(LFS3_I_GBMAP, 0)));
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lfs3_unmount(&lfs3) => 0;
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// with LFS3_M_COMPACT, mount compact any uncompacted blocks
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lfs3_mount(&lfs3,
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LFS3_M_RDWR
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| LFS3_M_COMPACT
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| ((LOOKAHEAD) ? LFS3_M_LOOKAHEAD : 0)
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| ((CKMETA) ? LFS3_M_CKMETA : 0)
|
|
| ((CKDATA) ? LFS3_M_CKDATA : 0),
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CFG) => 0;
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lfs3_fs_stat(&lfs3, &fsinfo) => 0;
|
|
assert(fsinfo.flags == (
|
|
LFS3_I_MKCONSISTENT
|
|
| ((!LOOKAHEAD) ? LFS3_I_LOOKAHEAD : 0)
|
|
| LFS3_IFDEF_YES_GBMAP(
|
|
(SIZE >= BLOCK_SIZE/4) ? LFS3_I_REBUILDGBMAP : 0,
|
|
0)
|
|
// note ckdata implies ckmeta
|
|
| ((!CKMETA && !CKDATA) ? LFS3_I_CKMETA : 0)
|
|
| ((!CKDATA) ? LFS3_I_CKDATA : 0)
|
|
| LFS3_IFDEF_YES_GBMAP(LFS3_I_GBMAP, 0)));
|
|
|
|
// mdir should have been compacted
|
|
lfs3_file_open(&lfs3, &file, "jellyfish", LFS3_O_RDONLY) => 0;
|
|
assert((file.b.h.mdir.r.eoff & 0x7fffffff) <= GC_COMPACT_THRESH);
|
|
|
|
// check we can still read the file
|
|
uint8_t rbuf[SIZE];
|
|
lfs3_file_read(&lfs3, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf, SIZE) == 0);
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_t_mkconsistent]
|
|
defines.LOOKAHEAD = [false, true]
|
|
defines.COMPACT = [false, true]
|
|
defines.CKMETA = [false, true]
|
|
defines.CKDATA = [false, true]
|
|
defines.SIZE = 'FILE_CACHE_SIZE/2'
|
|
# <=2 => grm-able
|
|
# >2 => requires orphans
|
|
defines.ORPHANS = [0, 1, 2, 3, 100]
|
|
code = '''
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
uint32_t prng = 42;
|
|
|
|
// first lets create some orphans
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// create two files
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "cuttlefish",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
uint8_t wbuf1[SIZE];
|
|
for (lfs3_size_t j = 0; j < SIZE; j++) {
|
|
wbuf1[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfs3_file_write(&lfs3, &file, wbuf1, SIZE) => SIZE;
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
|
|
lfs3_file_open(&lfs3, &file, "octopus",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
uint8_t wbuf2[SIZE];
|
|
for (lfs3_size_t j = 0; j < SIZE; j++) {
|
|
wbuf2[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
lfs3_file_write(&lfs3, &file, wbuf2, SIZE) => SIZE;
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
|
|
// create this many orphaned files
|
|
//
|
|
// anytime we close a not-yet-created desync file, we create an
|
|
// orphan, but note we need these to be different files, and we need
|
|
// to close them after all open calls, otherwise we just end up with
|
|
// one orphan (littlefs is eager to clean up orphans)
|
|
//
|
|
lfs3_file_t orphans[ORPHANS];
|
|
for (lfs3_size_t i = 0; i < ORPHANS; i++) {
|
|
char name[256];
|
|
sprintf(name, "jellyfish%03x", i);
|
|
lfs3_file_open(&lfs3, &orphans[i], name,
|
|
LFS3_O_WRONLY
|
|
| LFS3_O_CREAT
|
|
| LFS3_O_EXCL
|
|
| LFS3_O_DESYNC) => 0;
|
|
}
|
|
for (lfs3_size_t i = 0; i < ORPHANS; i++) {
|
|
lfs3_file_close(&lfs3, &orphans[i]) => 0;
|
|
}
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// by default we clean up orphans lazily
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
struct lfs3_fsinfo fsinfo;
|
|
lfs3_fs_stat(&lfs3, &fsinfo) => 0;
|
|
assert(fsinfo.flags == (
|
|
LFS3_I_MKCONSISTENT
|
|
| LFS3_I_LOOKAHEAD
|
|
| LFS3_IFDEF_YES_GBMAP(
|
|
(ORPHANS >= 100) ? LFS3_I_REBUILDGBMAP : 0,
|
|
0)
|
|
| LFS3_I_COMPACT
|
|
| LFS3_I_CKMETA
|
|
| LFS3_I_CKDATA
|
|
| LFS3_IFDEF_YES_GBMAP(LFS3_I_GBMAP, 0)));
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// with LFS3_M_MKCONSISTENT, mount cleans up orphans eagerly
|
|
lfs3_mount(&lfs3,
|
|
LFS3_M_RDWR
|
|
| LFS3_M_MKCONSISTENT
|
|
| ((LOOKAHEAD) ? LFS3_M_LOOKAHEAD : 0)
|
|
| ((COMPACT) ? LFS3_M_COMPACT : 0)
|
|
| ((CKMETA) ? LFS3_M_CKMETA : 0)
|
|
| ((CKDATA) ? LFS3_M_CKDATA : 0),
|
|
CFG) => 0;
|
|
lfs3_fs_stat(&lfs3, &fsinfo) => 0;
|
|
assert(fsinfo.flags == (
|
|
((!LOOKAHEAD) ? LFS3_I_LOOKAHEAD : 0)
|
|
| LFS3_IFDEF_YES_GBMAP(
|
|
(ORPHANS >= 100) ? LFS3_I_REBUILDGBMAP : 0,
|
|
0)
|
|
| ((!COMPACT) ? LFS3_I_COMPACT : 0)
|
|
// note ckdata implies ckmeta
|
|
| ((!CKMETA && !CKDATA) ? LFS3_I_CKMETA : 0)
|
|
| ((!CKDATA) ? LFS3_I_CKDATA : 0)
|
|
| LFS3_IFDEF_YES_GBMAP(LFS3_I_GBMAP, 0)));
|
|
|
|
// check we can still read the files
|
|
lfs3_file_open(&lfs3, &file, "cuttlefish", LFS3_O_RDONLY) => 0;
|
|
uint8_t rbuf[SIZE];
|
|
lfs3_file_read(&lfs3, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf1, SIZE) == 0);
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
|
|
lfs3_file_open(&lfs3, &file, "octopus", LFS3_O_RDONLY) => 0;
|
|
lfs3_file_read(&lfs3, &file, rbuf, SIZE) => SIZE;
|
|
assert(memcmp(rbuf, wbuf2, SIZE) == 0);
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
# test we can detect at least fully clobbered blocks
|
|
#
|
|
# these are tested more thoroughly in test_ck
|
|
[cases.test_mount_t_ckmeta]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_CACHE_SIZE/2',
|
|
'2*FILE_CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'8*BLOCK_SIZE',
|
|
]
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 32'
|
|
code = '''
|
|
lfs3_block_t i = 0;
|
|
while (true) {
|
|
// a bit hacky, but this catches infinite loops
|
|
assert(i < 2*BLOCK_COUNT);
|
|
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// create an interesting filesystem
|
|
uint32_t prng = 42;
|
|
for (lfs3_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "squid%03x", i);
|
|
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs3_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, name,
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file, wbuf, SIZE) => SIZE;
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
}
|
|
|
|
// traverse to find blocks
|
|
lfs3_trv_t trv;
|
|
lfs3_trv_open(&lfs3, &trv, LFS3_T_RDONLY) => 0;
|
|
lfs3_block_t k = 0;
|
|
for (lfs3_block_t j = 0;; j++) {
|
|
assert(j < 2*BLOCK_COUNT);
|
|
|
|
struct lfs3_tinfo tinfo;
|
|
int err = lfs3_trv_read(&lfs3, &trv, &tinfo);
|
|
assert(!err || err == LFS3_ERR_NOENT);
|
|
if (err == LFS3_ERR_NOENT) {
|
|
lfs3_trv_close(&lfs3, &trv) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
goto done;
|
|
}
|
|
|
|
// this gets a bit tricky be cause we need to clobber both
|
|
// blocks in mdir pairs
|
|
if (tinfo.btype == LFS3_BTYPE_MDIR
|
|
|| tinfo.btype == LFS3_BTYPE_BTREE) {
|
|
if (k == i || k == i+1) {
|
|
// clobber this block
|
|
printf("clobbering 0x%x\n", tinfo.block);
|
|
uint8_t clobber_buf[BLOCK_SIZE];
|
|
memset(clobber_buf, 0xcc, BLOCK_SIZE);
|
|
CFG->erase(CFG, tinfo.block) => 0;
|
|
CFG->prog(CFG, tinfo.block, 0,
|
|
clobber_buf, BLOCK_SIZE) => 0;
|
|
if (tinfo.btype != LFS3_BTYPE_MDIR || k == i+1) {
|
|
i += (tinfo.btype == LFS3_BTYPE_MDIR) ? 2 : 1;
|
|
lfs3_trv_close(&lfs3, &trv) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
goto clobbered;
|
|
}
|
|
}
|
|
k += 1;
|
|
}
|
|
}
|
|
|
|
clobbered:;
|
|
// mount with LFS3_M_CKMETA, we should detect clobbered blocks
|
|
lfs3_mount(&lfs3,
|
|
LFS3_M_RDWR
|
|
| LFS3_M_CKMETA,
|
|
CFG) => LFS3_ERR_CORRUPT;
|
|
}
|
|
done:;
|
|
'''
|
|
|
|
[cases.test_mount_t_ckdata]
|
|
defines.N = [1, 2, 4, 8, 16, 32, 64]
|
|
defines.SIZE = [
|
|
'0',
|
|
'FILE_CACHE_SIZE/2',
|
|
'2*FILE_CACHE_SIZE',
|
|
'BLOCK_SIZE/2',
|
|
'BLOCK_SIZE',
|
|
'2*BLOCK_SIZE',
|
|
'8*BLOCK_SIZE',
|
|
]
|
|
if = '(SIZE*N)/BLOCK_SIZE <= 32'
|
|
code = '''
|
|
lfs3_block_t i = 0;
|
|
while (true) {
|
|
// a bit hacky, but this catches infinite loops
|
|
assert(i < 2*BLOCK_COUNT);
|
|
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// create an interesting filesystem
|
|
uint32_t prng = 42;
|
|
for (lfs3_size_t i = 0; i < N; i++) {
|
|
char name[256];
|
|
sprintf(name, "squid%03x", i);
|
|
|
|
uint8_t wbuf[SIZE];
|
|
for (lfs3_size_t j = 0; j < SIZE; j++) {
|
|
wbuf[j] = 'a' + (TEST_PRNG(&prng) % 26);
|
|
}
|
|
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, name,
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file, wbuf, SIZE) => SIZE;
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
}
|
|
|
|
// traverse to find blocks
|
|
lfs3_trv_t trv;
|
|
lfs3_trv_open(&lfs3, &trv, LFS3_T_RDONLY) => 0;
|
|
lfs3_block_t k = 0;
|
|
for (lfs3_block_t j = 0;; j++) {
|
|
assert(j < 2*BLOCK_COUNT);
|
|
|
|
struct lfs3_tinfo tinfo;
|
|
int err = lfs3_trv_read(&lfs3, &trv, &tinfo);
|
|
assert(!err || err == LFS3_ERR_NOENT);
|
|
if (err == LFS3_ERR_NOENT) {
|
|
lfs3_trv_close(&lfs3, &trv) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
goto done;
|
|
}
|
|
|
|
// this gets a bit tricky be cause we need to clobber both
|
|
// blocks in mdir pairs
|
|
if (tinfo.btype == LFS3_BTYPE_MDIR
|
|
|| tinfo.btype == LFS3_BTYPE_BTREE
|
|
|| tinfo.btype == LFS3_BTYPE_DATA) {
|
|
if (k == i || k == i+1) {
|
|
// clobber this block
|
|
printf("clobbering 0x%x\n", tinfo.block);
|
|
uint8_t clobber_buf[BLOCK_SIZE];
|
|
memset(clobber_buf, 0xcc, BLOCK_SIZE);
|
|
CFG->erase(CFG, tinfo.block) => 0;
|
|
CFG->prog(CFG, tinfo.block, 0,
|
|
clobber_buf, BLOCK_SIZE) => 0;
|
|
if (tinfo.btype != LFS3_BTYPE_MDIR || k == i+1) {
|
|
i += (tinfo.btype == LFS3_BTYPE_MDIR) ? 2 : 1;
|
|
lfs3_trv_close(&lfs3, &trv) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
goto clobbered;
|
|
}
|
|
}
|
|
k += 1;
|
|
}
|
|
}
|
|
|
|
clobbered:;
|
|
// mount with LFS3_M_CKDATA, we should detect clobbered blocks
|
|
//
|
|
// note LFS3_M_CKDATA implies LFS3_M_CKMETA
|
|
lfs3_mount(&lfs3,
|
|
LFS3_M_RDWR
|
|
| LFS3_M_CKDATA,
|
|
CFG) => LFS3_ERR_CORRUPT;
|
|
}
|
|
done:;
|
|
'''
|
|
|
|
|
|
|
|
## incompatiblity tests ##
|
|
|
|
# test that we fail if we find no magic
|
|
[cases.test_mount_incompat_no_magic]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// delete the magic string
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR(
|
|
LFS3_TAG_RM | LFS3_TAG_MAGIC, 0))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_CORRUPT;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_CORRUPT;
|
|
'''
|
|
|
|
# test that we fail if we find bad magic
|
|
[cases.test_mount_incompat_bad_magic]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// tweak the magic string
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_BUF(
|
|
LFS3_TAG_MAGIC, 0,
|
|
"lottlefs", 8))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_CORRUPT;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_CORRUPT;
|
|
'''
|
|
|
|
# test that we fail to mount after a major version bump
|
|
[cases.test_mount_incompat_major]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// bump the major version
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_BUF(
|
|
LFS3_TAG_VERSION, 0,
|
|
((const uint8_t[2]){
|
|
LFS3_DISK_VERSION_MAJOR+1,
|
|
0}), 2))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test that we fail to mount after a minor version bump
|
|
[cases.test_mount_incompat_minor]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// bump the minor version
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_BUF(
|
|
LFS3_TAG_VERSION, 0,
|
|
((const uint8_t[2]){
|
|
LFS3_DISK_VERSION_MAJOR,
|
|
LFS3_DISK_VERSION_MINOR+1}), 2))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test that we fail to mount incompatible rcompat flags
|
|
[cases.test_mount_incompat_rcompat]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set the nonstandard rcompat flag, this will always be incompatible
|
|
// with standard littlefs
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_LE32(
|
|
LFS3_TAG_RCOMPAT, 0,
|
|
lfs3_rcompat(&lfs3)
|
|
| LFS3_RCOMPAT_NONSTANDARD))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test that we fail to mount incompatible wcompat flags
|
|
[cases.test_mount_incompat_wcompat]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set the nonstandard rcompat flag, this will always be incompatible
|
|
// with standard littlefs
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_LE32(
|
|
LFS3_TAG_WCOMPAT, 0,
|
|
lfs3_wcompat(&lfs3)
|
|
| LFS3_WCOMPAT_NONSTANDARD))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
|
|
// but we _can_ mount readonly
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
# test that an incompatible ocompat flag is a noop
|
|
[cases.test_mount_incompat_ocompat]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set the nonstandard ocompat flag, this will always be incompatible
|
|
// with standard littlefs
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_LE32(
|
|
LFS3_TAG_OCOMPAT, 0,
|
|
lfs3_ocompat(&lfs3)
|
|
| LFS3_OCOMPAT_NONSTANDARD))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should _not_ fail, ocompat should always be ignored
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
# test that we fail to mount rdonly images
|
|
[cases.test_mount_incompat_rdonly]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set the rdonly flag, this prevents writing from a littlefs image
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_LE32(
|
|
LFS3_TAG_WCOMPAT, 0,
|
|
lfs3_wcompat(&lfs3)
|
|
| LFS3_WCOMPAT_RDONLY))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
|
|
// but we _can_ mount readonly
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
# test that we fail to mount wronly images
|
|
[cases.test_mount_incompat_wronly]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set the wronly flag, this prevents reading from a littlefs image
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_LE32(
|
|
LFS3_TAG_RCOMPAT, 0,
|
|
lfs3_rcompat(&lfs3)
|
|
| LFS3_RCOMPAT_WRONLY))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# these are just a bit harder to detect
|
|
[cases.test_mount_incompat_rcompat_overflow]
|
|
defines.OVERFLOW = 72
|
|
defines.FLAG = 'range(72)'
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set a really far rcompat flag
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
uint8_t overflow[OVERFLOW / 8];
|
|
memset(overflow, 0, sizeof(overflow));
|
|
overflow[FLAG / 8] |= 1 << (FLAG % 8);
|
|
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
uint8_t rcompat_buf[LFS3_LE32_DSIZE];
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_RCOMPAT, 0,
|
|
lfs3_data_fromle32(lfs3_rcompat(&lfs3), rcompat_buf),
|
|
LFS3_DATA_BUF(overflow, sizeof(overflow))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_wcompat_overflow]
|
|
defines.OVERFLOW = 72
|
|
defines.FLAG = 'range(72)'
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
uint8_t flags[9] = {0};
|
|
flags[FLAG / 8] |= 1 << (FLAG % 8);
|
|
|
|
// set a really far wcompat flag
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
uint8_t overflow[OVERFLOW / 8];
|
|
memset(overflow, 0, sizeof(overflow));
|
|
overflow[FLAG / 8] |= 1 << (FLAG % 8);
|
|
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
uint8_t wcompat_buf[LFS3_LE32_DSIZE];
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_WCOMPAT, 0,
|
|
lfs3_data_fromle32(lfs3_wcompat(&lfs3), wcompat_buf),
|
|
LFS3_DATA_BUF(overflow, sizeof(overflow))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
|
|
// but we _can_ mount readonly
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_ocompat_overflow]
|
|
defines.OVERFLOW = 72
|
|
defines.FLAG = 'range(72)'
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set a really far ocompat flag
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
uint8_t overflow[OVERFLOW / 8];
|
|
memset(overflow, 0, sizeof(overflow));
|
|
overflow[FLAG / 8] |= 1 << (FLAG % 8);
|
|
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
uint8_t ocompat_buf[LFS3_LE32_DSIZE];
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_OCOMPAT, 0,
|
|
lfs3_data_fromle32(lfs3_ocompat(&lfs3), ocompat_buf),
|
|
LFS3_DATA_BUF(overflow, sizeof(overflow))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should _not_ fail, ocompat should always be ignored
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
# but just appending zeros is _not_ an error
|
|
[cases.test_mount_incompat_rcompat_padding]
|
|
defines.OVERFLOW = 72
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set a really far rcompat flag
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
uint8_t overflow[OVERFLOW / 8];
|
|
memset(overflow, 0, sizeof(overflow));
|
|
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
uint8_t rcompat_buf[LFS3_LE32_DSIZE];
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_RCOMPAT, 0,
|
|
lfs3_data_fromle32(lfs3_rcompat(&lfs3), rcompat_buf),
|
|
LFS3_DATA_BUF(overflow, sizeof(overflow))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should _not_ fail, extra zeros should be ignored
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_wcompat_padding]
|
|
defines.OVERFLOW = 72
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
uint8_t flags[9] = {0};
|
|
flags[FLAG / 8] |= 1 << (FLAG % 8);
|
|
|
|
// set a really far wcompat flag
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
uint8_t overflow[OVERFLOW / 8];
|
|
memset(overflow, 0, sizeof(overflow));
|
|
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
uint8_t wcompat_buf[LFS3_LE32_DSIZE];
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_WCOMPAT, 0,
|
|
lfs3_data_fromle32(lfs3_wcompat(&lfs3), wcompat_buf),
|
|
LFS3_DATA_BUF(overflow, sizeof(overflow))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should _not_ fail, extra zeros should be ignored
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_ocompat_padding]
|
|
defines.OVERFLOW = 72
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set a really far ocompat flag
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
uint8_t overflow[OVERFLOW / 8];
|
|
memset(overflow, 0, sizeof(overflow));
|
|
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
uint8_t ocompat_buf[LFS3_LE32_DSIZE];
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_OCOMPAT, 0,
|
|
lfs3_data_fromle32(lfs3_ocompat(&lfs3), ocompat_buf),
|
|
LFS3_DATA_BUF(overflow, sizeof(overflow))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should _not_ fail, extra zeros should be ignored
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
# test that we fail to mount incompatible block sizes
|
|
[cases.test_mount_incompat_block_size]
|
|
defines.INC_BLOCK_SIZE = ['BLOCK_SIZE/2', 'BLOCK_SIZE*2']
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set an incompatible block size
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_GEOMETRY(
|
|
LFS3_TAG_GEOMETRY, 0,
|
|
(&(lfs3_geometry_t){
|
|
INC_BLOCK_SIZE,
|
|
BLOCK_COUNT})))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test that we fail to mount after incompatible block counts
|
|
[cases.test_mount_incompat_block_count]
|
|
defines.INC_BLOCK_COUNT = ['BLOCK_COUNT*2']
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set an incompatible block count
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_GEOMETRY(
|
|
LFS3_TAG_GEOMETRY, 0,
|
|
(&(lfs3_geometry_t){
|
|
BLOCK_SIZE,
|
|
INC_BLOCK_COUNT})))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test that we fail to mount after incompatible name limit
|
|
[cases.test_mount_incompat_name_limit]
|
|
defines.INC_NAME_LIMIT = ['LFS3_NAME_MAX*2']
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set an incompatible block size
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_LEB128(
|
|
LFS3_TAG_NAMELIMIT, 0,
|
|
INC_NAME_LIMIT))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test that we fail to mount after incompatible file limit
|
|
[cases.test_mount_incompat_file_limit]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// set an incompatible file limit
|
|
//
|
|
// note we're messing around with internals to do this! this
|
|
// is not a user API
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
uint8_t file_limit_buf[LFS3_LEB128_DSIZE];
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_FILELIMIT, 0,
|
|
// it's a bit difficult to test this since file limit
|
|
// is usually our integer limit, but we can force a
|
|
// larger value by inserting an extra byte into our
|
|
// leb128 encoding
|
|
LFS3_DATA_BUF("\xff", 1),
|
|
lfs3_data_fromleb128(LFS3_FILE_MAX, file_limit_buf)))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test what happens if we find an unknown config
|
|
[cases.test_mount_incompat_unknown_config]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create an unknown config
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_mdir_commit(&lfs3, &lfs3.mroot, LFS3_RATTRS(
|
|
LFS3_RATTR_BUF(
|
|
LFS3_TAG_CONFIG + 0x42, 0,
|
|
"oh no!", strlen("oh no!")))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_NOTSUP;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_NOTSUP;
|
|
'''
|
|
|
|
# test what happens if we find an unknown file type
|
|
[cases.test_mount_incompat_unknown_type]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "c",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi c!", strlen("hi c!")) => strlen("hi c!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// open/mkdir should error
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_RDONLY) => LFS3_ERR_NOTSUP;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT) => LFS3_ERR_NOTSUP;
|
|
|
|
lfs3_mkdir(&lfs3, "b") => LFS3_ERR_EXIST;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_unknown_type_rm]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "c",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi c!", strlen("hi c!")) => strlen("hi c!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// removing unknown files should still work, if this would leak
|
|
// resources the new type should set a wcompat flag
|
|
lfs3_remove(&lfs3, "b") => 0;
|
|
|
|
// check that things look reasonable
|
|
lfs3_stat(&lfs3, "b", &info) => LFS3_ERR_NOENT;
|
|
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_unknown_type_mv_src]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "c",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi c!", strlen("hi c!")) => strlen("hi c!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// renaming unknown files should still work, if this would leak
|
|
// resources the new type should set a wcompat flag
|
|
lfs3_rename(&lfs3, "b", "c") => 0;
|
|
|
|
// check that things look reasonable after renaming/removing
|
|
lfs3_stat(&lfs3, "c", &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_unknown_type_mv_dst]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "c",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi c!", strlen("hi c!")) => strlen("hi c!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// renaming unknown files should still work, if this would leak
|
|
// resources the new type should set a wcompat flag
|
|
lfs3_rename(&lfs3, "c", "b") => 0;
|
|
|
|
// check that things look reasonable after renaming/removing
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_unknown_type_mv_src_dst]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "c",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh hi!", strlen("oh hi!")) => strlen("oh hi!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
path = "c";
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// renaming unknown files should still work, if this would leak
|
|
// resources the new type should set a wcompat flag
|
|
lfs3_rename(&lfs3, "b", "c") => 0;
|
|
|
|
// check that things look reasonable after renaming/removing
|
|
lfs3_stat(&lfs3, "c", &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_unknown_type_mv_noop]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "c",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi c!", strlen("hi c!")) => strlen("hi c!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// renaming unknown files should still work, if this would leak
|
|
// resources the new type should set a wcompat flag
|
|
lfs3_rename(&lfs3, "b", "b") => 0;
|
|
|
|
// check that things look reasonable after renaming/removing
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi c!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_unknown_type_mv_notdir]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_mkdir(&lfs3, "c") => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// renaming unknown files should still work, if this would leak
|
|
// resources the new type should set a wcompat flag
|
|
lfs3_rename(&lfs3, "c", "b") => LFS3_ERR_NOTDIR;
|
|
|
|
// check that things look reasonable after renaming/removing
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
[cases.test_mount_incompat_unknown_type_mv_isdir]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// create some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "a",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"hi a!", strlen("hi a!")) => strlen("hi a!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "b",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
lfs3_file_write(&lfs3, &file,
|
|
"oh no!", strlen("oh no!")) => strlen("oh no!");
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_mkdir(&lfs3, "c") => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// change a file's type to something unknown
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
const char *path = "b";
|
|
lfs3_mdir_t mdir;
|
|
lfs3_did_t did;
|
|
lfs3_mtree_pathlookup(&lfs3, &path,
|
|
&mdir, &did) => LFS3_TAG_REG;
|
|
lfs3_mdir_commit(&lfs3, &mdir, LFS3_RATTRS(
|
|
LFS3_RATTR_CAT(
|
|
LFS3_TAG_MASK8 | (LFS3_TAG_NAME + 0x13), 0,
|
|
lfs3_data_fromleb128(did, (uint8_t[LFS3_LEB128_DSIZE]){0}),
|
|
LFS3_DATA_BUF(path, lfs3_path_namelen(path))))) => 0;
|
|
lfs3_unmount(&lfs3) => 0;
|
|
|
|
// mount
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
|
|
// our file should appear as an unknown type
|
|
struct lfs3_info info;
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_t dir;
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
// renaming unknown files should still work, if this would leak
|
|
// resources the new type should set a wcompat flag
|
|
lfs3_rename(&lfs3, "b", "c") => LFS3_ERR_ISDIR;
|
|
|
|
// check that things look reasonable after renaming/removing
|
|
lfs3_stat(&lfs3, "b", &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
|
|
lfs3_dir_open(&lfs3, &dir, "/") => 0;
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, ".") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "..") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "a") == 0);
|
|
assert(info.type == LFS3_TYPE_REG);
|
|
assert(info.size == strlen("hi a!"));
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "b") == 0);
|
|
assert(info.type == LFS3_TYPE_UNKNOWN);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => 0;
|
|
assert(strcmp(info.name, "c") == 0);
|
|
assert(info.type == LFS3_TYPE_DIR);
|
|
assert(info.size == 0);
|
|
lfs3_dir_read(&lfs3, &dir, &info) => LFS3_ERR_NOENT;
|
|
lfs3_dir_close(&lfs3, &dir) => 0;
|
|
|
|
lfs3_unmount(&lfs3) => 0;
|
|
'''
|
|
|
|
|
|
# Ok, here's an interesting one, test that we fail if we're
|
|
# "out-of-phase", i.e. the mrootanchor has been shifted by a small
|
|
# number of blocks.
|
|
#
|
|
# This can happen if we find the wrong mrootanchor (after, say, a magic
|
|
# scan), and risks filesystem corruption. To prevent this, we include 2
|
|
# phase bits in cksum tags to detect up to a 3 block shift (the maximum
|
|
# number of redund mrootanchors)
|
|
#
|
|
[cases.test_mount_incompat_out_of_phase]
|
|
defines.PHASE = [1, 2, 3, 4]
|
|
in = 'lfs3.c'
|
|
code = '''
|
|
// create a superblock
|
|
lfs3_t lfs3;
|
|
lfs3_format(&lfs3, LFS3_F_RDWR, CFG) => 0;
|
|
|
|
// with some files
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => 0;
|
|
lfs3_file_t file;
|
|
lfs3_file_open(&lfs3, &file, "r2d2",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
char wbuf[256];
|
|
strcpy(wbuf, "beep boop");
|
|
lfs3_file_write(&lfs3, &file, wbuf, strlen(wbuf)) => strlen(wbuf);
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
lfs3_file_open(&lfs3, &file, "c3po",
|
|
LFS3_O_WRONLY | LFS3_O_CREAT | LFS3_O_EXCL) => 0;
|
|
strcpy(wbuf, "we seem to be made to suffer");
|
|
lfs3_file_write(&lfs3, &file, wbuf, strlen(wbuf)) => strlen(wbuf);
|
|
lfs3_file_close(&lfs3, &file) => 0;
|
|
|
|
// shift the filesystem out-of-phase
|
|
uint8_t shift_buf[BLOCK_SIZE];
|
|
for (lfs3_size_t i = 0; i < 4; i++) {
|
|
CFG->read(CFG, 4-1-i, 0, shift_buf, BLOCK_SIZE) => 0;
|
|
CFG->erase(CFG, 4-1-i + PHASE) => 0;
|
|
CFG->prog(CFG, 4-1-i + PHASE, 0, shift_buf, BLOCK_SIZE) => 0;
|
|
|
|
memset(shift_buf, 0, BLOCK_SIZE);
|
|
strcpy((char*)shift_buf,
|
|
"these aren't the files you're looking for ;)");
|
|
CFG->erase(CFG, 4-1-i) => 0;
|
|
CFG->prog(CFG, 4-1-i, 0, shift_buf, BLOCK_SIZE) => 0;
|
|
}
|
|
|
|
// mount should now fail
|
|
lfs3_mount(&lfs3, LFS3_M_RDWR, CFG) => LFS3_ERR_CORRUPT;
|
|
lfs3_mount(&lfs3, LFS3_M_RDONLY, CFG) => LFS3_ERR_CORRUPT;
|
|
'''
|