Commit Graph

54 Commits

Author SHA1 Message Date
Gregory Nutt 22484386ee fs/cromfs and tools/gencromfs: Various fixes for traversal relative file paths. Biggest changes is in types used: Cannot use size_t or mode_t in common structures because they have different sizes on the (64-bit) host and the (32-bit) target. Use uint32_t instead of size_t for offsets. Use uint16_t instead of mode_t. 2018-03-20 12:37:01 -06:00
Gregory Nutt 87fd4e2916 fs/cromfs: Fix read logic. tools/genromfs.c: Last node in directory needs to have zero for peer offset. Still some issues with empty directories. 2018-03-20 10:37:42 -06:00
Gregory Nutt eec44d1f01 This commit adds tools/gencromfs.c, a tool that can be used to generate CROMFS file system images.
Squashed commit of the following:

    tools/gencromfs.c:  Seems basically functional but has not has not yet been integrated with CROMFS.
    tools/gencromfs.c:  Revist previous commit.  Let's make no assumptions about the compatibility of the host system and NuttX.
    tools/gencromfs.c:  I think access mode bits are sufficiently standard that we can just copy them from the host.  This is don't mostly to pick up the executable bits and other conbinations of bits without doing a bit-for-bit decode.
    tools/gencromfs.c:  Code complete but only partially functional.
    tools/gencromfs.c:  type definitions must precede data definitions
    tools/gencromfs.c:  Adds a little more logic to gencromfs tools.  Still not complete but can traverse directories and generate directory and hard-link nodes.
    tools/gencromfs.c: Beginning of a genromfs tool that will eventually be used for generation of CROMFS file system images.
2018-03-20 07:31:13 -06:00
Gregory Nutt 0478b5bce4 Addes CROMFS prototype. CROMFS is a commpressed, in-memory read-only file system based on LZF.
Squashed commit of the following:

    fs/cromfs:  Now depends on EXPERIMENTAL because it is not yet verified.
    fs/cromfs:  This commit brings the CROMFS file system to code complete.  Still completely untested.  Next steps:  Need a tool to generate CROMFS file system images and a test case under apps/
    fs/cromfs:  Add logic to traverse the in-memory file system nodes.
    fs/cromfs:  Add initial support for an in-memory, compressed, read-only file system.
2018-03-19 07:08:40 -06:00