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fix: make extfs filesystem detection separate for ext2/3/4
It's import to make sure detected names match the names in `/proc/filesystems` for the actual mount call. Part of siderolabs/talos#9746 Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
|
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| package ext | ||
|
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||
| import ( | ||
| "github.com/siderolabs/go-blockdevice/v2/blkid/internal/magic" | ||
| "github.com/siderolabs/go-blockdevice/v2/blkid/internal/probe" | ||
| ) | ||
|
|
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| // Probe2 for ext2. | ||
| type Probe2 struct { | ||
| probeCommon | ||
| } | ||
|
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| // Name returns the name of the xfs filesystem. | ||
| func (p *Probe2) Name() string { | ||
| return "ext2" | ||
| } | ||
|
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| // Probe runs the further inspection and returns the result if successful. | ||
| func (p *Probe2) Probe(r probe.Reader, _ magic.Magic) (*probe.Result, error) { | ||
| sb, err := p.readSuperblock(r) | ||
| if err != nil || sb == nil { | ||
| return nil, err | ||
| } | ||
|
|
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| // should not have a journal | ||
| if sb.Get_s_feature_compat()&EXT3_FEATURE_COMPAT_HAS_JOURNAL != 0 { | ||
| return nil, nil //nolint:nilnil | ||
| } | ||
|
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| // ext2 should not have features it doesn't understand | ||
| if (sb.Get_s_feature_ro_compat()&EXT2_FEATURE_RO_COMPAT_UNSUPPORTED) != 0 || | ||
| (sb.Get_s_feature_incompat()&EXT2_FEATURE_INCOMPAT_UNSUPPORTED) != 0 { | ||
| return nil, nil //nolint:nilnil | ||
| } | ||
|
|
||
| return p.buildResult(sb) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
|
|
||
| package ext | ||
|
|
||
| import ( | ||
| "github.com/siderolabs/go-blockdevice/v2/blkid/internal/magic" | ||
| "github.com/siderolabs/go-blockdevice/v2/blkid/internal/probe" | ||
| ) | ||
|
|
||
| // Probe3 for ext3. | ||
| type Probe3 struct { | ||
| probeCommon | ||
| } | ||
|
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| // Name returns the name of the xfs filesystem. | ||
| func (p *Probe3) Name() string { | ||
| return "ext3" | ||
| } | ||
|
|
||
| // Probe runs the further inspection and returns the result if successful. | ||
| func (p *Probe3) Probe(r probe.Reader, _ magic.Magic) (*probe.Result, error) { | ||
| sb, err := p.readSuperblock(r) | ||
| if err != nil || sb == nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // should have a journal | ||
| if sb.Get_s_feature_compat()&EXT3_FEATURE_COMPAT_HAS_JOURNAL == 0 { | ||
| return nil, nil //nolint:nilnil | ||
| } | ||
|
|
||
| // ext3 should not have features it doesn't understand | ||
| if (sb.Get_s_feature_ro_compat()&EXT3_FEATURE_RO_COMPAT_UNSUPPORTED) != 0 || | ||
| (sb.Get_s_feature_incompat()&EXT3_FEATURE_INCOMPAT_UNSUPPORTED) != 0 { | ||
| return nil, nil //nolint:nilnil | ||
| } | ||
|
|
||
| return p.buildResult(sb) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
|
|
||
| package ext | ||
|
|
||
| import ( | ||
| "github.com/siderolabs/go-blockdevice/v2/blkid/internal/magic" | ||
| "github.com/siderolabs/go-blockdevice/v2/blkid/internal/probe" | ||
| ) | ||
|
|
||
| // Probe4 for ext4. | ||
| type Probe4 struct { | ||
| probeCommon | ||
| } | ||
|
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| // Name returns the name of the xfs filesystem. | ||
| func (p *Probe4) Name() string { | ||
| return "ext4" | ||
| } | ||
|
|
||
| // Probe runs the further inspection and returns the result if successful. | ||
| func (p *Probe4) Probe(r probe.Reader, _ magic.Magic) (*probe.Result, error) { | ||
| sb, err := p.readSuperblock(r) | ||
| if err != nil || sb == nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // distinguish from jbd | ||
| if sb.Get_s_feature_incompat()&EXT3_FEATURE_INCOMPAT_JOURNAL_DEV != 0 { | ||
| return nil, nil //nolint:nilnil | ||
| } | ||
|
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| // ext4 has at least one feature which ext3 doesn't understand | ||
| if (sb.Get_s_feature_ro_compat()&EXT3_FEATURE_RO_COMPAT_UNSUPPORTED) == 0 && | ||
| (sb.Get_s_feature_incompat()&EXT3_FEATURE_INCOMPAT_UNSUPPORTED) == 0 { | ||
| return nil, nil //nolint:nilnil | ||
| } | ||
|
|
||
| return p.buildResult(sb) | ||
| } |