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lib: utils/libfdt: Upgrade to v1.6.1 release

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Sync with libfdt v1.6.1 release source codes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Bin Meng
2021-06-11 15:27:27 +08:00
committed by Anup Patel
parent 79f9b4220f
commit eb90e0a16c
11 changed files with 226 additions and 104 deletions
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19
lib/utils/libfdt/fdt_check.c
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@@ -19,9 +19,12 @@ int fdt_check_full(const void *fdt, size_t bufsize)
unsigned int depth = 0;
const void *prop;
const char *propname;
bool expect_end = false;
if (bufsize < FDT_V1_SIZE)
return -FDT_ERR_TRUNCATED;
if (bufsize < fdt_header_size(fdt))
return -FDT_ERR_TRUNCATED;
err = fdt_check_header(fdt);
if (err != 0)
return err;
@@ -39,6 +42,10 @@ int fdt_check_full(const void *fdt, size_t bufsize)
if (nextoffset < 0)
return nextoffset;
/* If we see two root nodes, something is wrong */
if (expect_end && tag != FDT_END)
return -FDT_ERR_BADSTRUCTURE;
switch (tag) {
case FDT_NOP:
break;
@@ -52,12 +59,24 @@ int fdt_check_full(const void *fdt, size_t bufsize)
depth++;
if (depth > INT_MAX)
return -FDT_ERR_BADSTRUCTURE;
/* The root node must have an empty name */
if (depth == 1) {
const char *name;
int len;
name = fdt_get_name(fdt, offset, &len);
if (*name || len)
return -FDT_ERR_BADSTRUCTURE;
}
break;
case FDT_END_NODE:
if (depth == 0)
return -FDT_ERR_BADSTRUCTURE;
depth--;
if (depth == 0)
expect_end = true;
break;
case FDT_PROP: