7cda17edfc
Add a simple test to validate the filesystem APIs that connect the LK filesystem layer and the virtualIO 9p devices. The test does the same as `app/tests/v9p_tests.c` to mount the littlekernel codebase folder as the `/v9p` on the LK filesystem. Then it tries to read the `LICENSE` file under the codebase and show the first 1024 bytes of the file. For example: ``` starting internet servers starting app shell entering main console loop ] v9fs_tests 0x80017060: 2f 2a 0a 20 2a 20 43 6f 70 79 72 69 67 68 74 20 |/*. * Copyright 0x80017070: 28 63 29 20 32 30 30 38 2d 32 30 31 35 20 54 72 |(c) 2008-2015 Tr 0x80017080: 61 76 69 73 20 47 65 69 73 65 6c 62 72 65 63 68 |avis Geiselbrech 0x80017090: 74 0a 20 2a 0a 20 2a 20 50 65 72 6d 69 73 73 69 |t. *. * Permissi 0x800170a0: 6f 6e 20 69 73 20 68 65 72 65 62 79 20 67 72 61 |on is hereby gra ... ``` Signed-off-by: Cody Wong <codycswong@google.com>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
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* Copyright (c) 2024 Cody Wong
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*
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* Use of this source code is governed by a MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT
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*/
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#include <app/tests.h>
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#include <lk/err.h>
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#include <lk/debug.h>
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#define _LOGF(fmt, args...) \
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printf("[%s:%d] " fmt, __PRETTY_FUNCTION__, __LINE__, ##args)
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#define LOGF(x...) _LOGF(x)
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#if WITH_DEV_VIRTIO_9P
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#include <lib/fs.h>
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#define V9FS_MOUNT_POINT "/v9p"
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#define V9FS_NAME "9p"
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#define V9P_BDEV_NAME "v9p0"
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#define BUF_SIZE 1024
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int v9fs_tests(int argc, const console_cmd_args *argv) {
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status_t status;
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ssize_t readbytes;
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filehandle *handle;
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char buf[BUF_SIZE];
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status = fs_mount(V9FS_MOUNT_POINT, V9FS_NAME, V9P_BDEV_NAME);
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if (status != NO_ERROR) {
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LOGF("failed to mount v9p bdev (%s) onto mount point (%s): %d\n",
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V9P_BDEV_NAME, V9FS_MOUNT_POINT, status);
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return status;
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}
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status = fs_open_file(V9FS_MOUNT_POINT "/LICENSE", &handle);
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if (status != NO_ERROR) {
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LOGF("failed to open the target file: %d\n", status);
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return status;
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}
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readbytes = fs_read_file(handle, buf, 0, BUF_SIZE);
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if (readbytes < 0) {
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LOGF("failed to read the target file: %ld\n", readbytes);
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return status;
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}
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hexdump8(buf, BUF_SIZE);
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status = fs_close_file(handle);
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if (status != NO_ERROR) {
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LOGF("failed to close the target file: %d\n", status);
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return status;
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}
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status = fs_unmount(V9FS_MOUNT_POINT);
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if (status != NO_ERROR) {
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LOGF("failed to unmount v9p on mount point (%s): %d\n",
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V9FS_MOUNT_POINT, status);
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return status;
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}
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return NO_ERROR;
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}
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#else
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int v9fs_tests(int argc, const console_cmd_args *argv) {
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LOGF("platform didn't have dev/virtio/9p supported\n");
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return ERR_NOT_SUPPORTED;
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}
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#endif // WITH_DEV_VIRTIO_9P
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