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124 lines
4.0 KiB
124 lines
4.0 KiB
// SPDX-License-Identifier: LGPL-2.1-or-later |
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/* |
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* libfdt - Flat Device Tree manipulation |
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* Testcase for fdt_path_offset() |
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* Copyright (C) 2006 David Gibson, IBM Corporation. |
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*/ |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdint.h> |
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#include <libfdt.h> |
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#include "tests.h" |
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#include "testdata.h" |
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static int check_subnode(void *fdt, int parent, const char *name) |
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{ |
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int offset; |
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const struct fdt_node_header *nh; |
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uint32_t tag; |
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verbose_printf("Checking subnode \"%s\" of %d...", name, parent); |
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offset = fdt_subnode_offset(fdt, parent, name); |
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verbose_printf("offset %d...", offset); |
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if (offset < 0) |
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FAIL("fdt_subnode_offset(\"%s\"): %s", name, fdt_strerror(offset)); |
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nh = fdt_offset_ptr(fdt, offset, sizeof(*nh)); |
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verbose_printf("pointer %p\n", nh); |
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if (! nh) |
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FAIL("NULL retrieving subnode \"%s\"", name); |
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tag = fdt32_to_cpu(nh->tag); |
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if (tag != FDT_BEGIN_NODE) |
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FAIL("Incorrect tag 0x%08x on property \"%s\"", tag, name); |
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if (!nodename_eq(nh->name, name)) |
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FAIL("Subnode name mismatch \"%s\" instead of \"%s\"", |
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nh->name, name); |
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return offset; |
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} |
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static void check_path_offset(void *fdt, char *path, int offset) |
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{ |
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int rc; |
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verbose_printf("Checking offset of \"%s\" is %d...\n", path, offset); |
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rc = fdt_path_offset(fdt, path); |
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if (rc < 0) |
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FAIL("fdt_path_offset(\"%s\") failed: %s", |
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path, fdt_strerror(rc)); |
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if (rc != offset) |
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FAIL("fdt_path_offset(\"%s\") returned incorrect offset" |
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" %d instead of %d", path, rc, offset); |
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} |
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static void check_path_offset_namelen(void *fdt, char *path, int namelen, |
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int offset) |
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{ |
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int rc; |
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verbose_printf("Checking offset of \"%s\" [first %d characters]" |
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" is %d...\n", path, namelen, offset); |
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rc = fdt_path_offset_namelen(fdt, path, namelen); |
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if (rc == offset) |
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return; |
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if (rc < 0) |
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FAIL("fdt_path_offset_namelen(\"%s\", %d) failed: %s", |
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path, namelen, fdt_strerror(rc)); |
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else |
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FAIL("fdt_path_offset_namelen(\"%s\", %d) returned incorrect" |
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" offset %d instead of %d", path, namelen, rc, offset); |
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} |
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int main(int argc, char *argv[]) |
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{ |
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void *fdt; |
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int subnode1_offset, subnode2_offset; |
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int subsubnode1_offset, subsubnode2_offset, subsubnode2_offset2; |
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test_init(argc, argv); |
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fdt = load_blob_arg(argc, argv); |
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check_path_offset(fdt, "/", 0); |
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subnode1_offset = check_subnode(fdt, 0, "subnode@1"); |
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subnode2_offset = check_subnode(fdt, 0, "subnode@2"); |
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check_path_offset(fdt, "/subnode@1", subnode1_offset); |
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check_path_offset(fdt, "/subnode@2", subnode2_offset); |
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subsubnode1_offset = check_subnode(fdt, subnode1_offset, "subsubnode"); |
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subsubnode2_offset = check_subnode(fdt, subnode2_offset, "subsubnode@0"); |
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subsubnode2_offset2 = check_subnode(fdt, subnode2_offset, "subsubnode"); |
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check_path_offset(fdt, "/subnode@1/subsubnode", subsubnode1_offset); |
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check_path_offset(fdt, "/subnode@2/subsubnode@0", subsubnode2_offset); |
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check_path_offset(fdt, "/subnode@2/subsubnode", subsubnode2_offset2); |
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/* Test paths with extraneous separators */ |
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check_path_offset(fdt, "//", 0); |
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check_path_offset(fdt, "///", 0); |
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check_path_offset(fdt, "//subnode@1", subnode1_offset); |
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check_path_offset(fdt, "/subnode@1/", subnode1_offset); |
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check_path_offset(fdt, "//subnode@1///", subnode1_offset); |
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check_path_offset(fdt, "/subnode@2////subsubnode", subsubnode2_offset2); |
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/* Test fdt_path_offset_namelen() */ |
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check_path_offset_namelen(fdt, "/subnode@1", 1, 0); |
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check_path_offset_namelen(fdt, "/subnode@1/subsubnode", 10, subnode1_offset); |
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check_path_offset_namelen(fdt, "/subnode@1/subsubnode", 11, subnode1_offset); |
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check_path_offset_namelen(fdt, "/subnode@2TRAILINGGARBAGE", 10, subnode2_offset); |
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check_path_offset_namelen(fdt, "/subnode@2TRAILINGGARBAGE", 11, -FDT_ERR_NOTFOUND); |
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check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 23, subsubnode2_offset2); |
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check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 22, -FDT_ERR_NOTFOUND); |
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check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 24, subsubnode2_offset2); |
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check_path_offset_namelen(fdt, "/subnode@2/subsubnode@0/more", 25, -FDT_ERR_NOTFOUND); |
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PASS(); |
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}
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