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-rw-r--r--lib/Kconfig9
-rw-r--r--lib/fdtdec.c4
-rw-r--r--lib/libfdt/fdt.c13
-rw-r--r--lib/libfdt/fdt_overlay.c8
-rw-r--r--lib/libfdt/fdt_ro.c119
-rw-r--r--lib/libfdt/fdt_rw.c4
-rw-r--r--lib/libfdt/fdt_wip.c6
7 files changed, 101 insertions, 62 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index 16ff01a2cd..0e0d8efd33 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -154,6 +154,15 @@ config SPL_OF_LIBFDT
particular compatible nodes. The library operates on a flattened
version of the device tree.
+config FDT_FIXUP_PARTITIONS
+ bool "overwrite MTD partitions in DTS through defined in 'mtdparts'"
+ depends on OF_LIBFDT
+ default n
+ help
+ Allow overwriting defined partitions in the device tree blob
+ using partition info defined in the 'mtdparts' environment
+ variable.
+
source lib/efi/Kconfig
source lib/efi_loader/Kconfig
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 4defb902b8..4e619c49a2 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -836,7 +836,7 @@ int fdtdec_get_child_count(const void *blob, int node)
int subnode;
int num = 0;
- fdt_for_each_subnode(blob, subnode, node)
+ fdt_for_each_subnode(subnode, blob, node)
num++;
return num;
@@ -1014,7 +1014,7 @@ int fdt_get_named_resource(const void *fdt, int node, const char *property,
{
int index;
- index = fdt_find_string(fdt, node, prop_names, name);
+ index = fdt_stringlist_search(fdt, node, prop_names, name);
if (index < 0)
return index;
diff --git a/lib/libfdt/fdt.c b/lib/libfdt/fdt.c
index 96017a15a2..2055734012 100644
--- a/lib/libfdt/fdt.c
+++ b/lib/libfdt/fdt.c
@@ -35,18 +35,19 @@ int fdt_check_header(const void *fdt)
const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int len)
{
- const char *p;
+ unsigned absoffset = offset + fdt_off_dt_struct(fdt);
+
+ if ((absoffset < offset)
+ || ((absoffset + len) < absoffset)
+ || (absoffset + len) > fdt_totalsize(fdt))
+ return NULL;
if (fdt_version(fdt) >= 0x11)
if (((offset + len) < offset)
|| ((offset + len) > fdt_size_dt_struct(fdt)))
return NULL;
- p = _fdt_offset_ptr(fdt, offset);
-
- if (p + len < p)
- return NULL;
- return p;
+ return _fdt_offset_ptr(fdt, offset);
}
uint32_t fdt_next_tag(const void *fdt, int startoffset, int *nextoffset)
diff --git a/lib/libfdt/fdt_overlay.c b/lib/libfdt/fdt_overlay.c
index 40b6d27455..d35ceacbf0 100644
--- a/lib/libfdt/fdt_overlay.c
+++ b/lib/libfdt/fdt_overlay.c
@@ -146,7 +146,7 @@ static int overlay_adjust_node_phandles(void *fdto, int node,
if (!found && !ret)
return ret;
- fdt_for_each_subnode(fdto, child, node)
+ fdt_for_each_subnode(child, fdto, node)
overlay_adjust_node_phandles(fdto, child, delta);
return 0;
@@ -248,7 +248,7 @@ static int overlay_update_local_node_references(void *fdto,
}
}
- fdt_for_each_subnode(fdto, fixup_child, fixup_node) {
+ fdt_for_each_subnode(fixup_child, fdto, fixup_node) {
const char *fixup_child_name = fdt_get_name(fdto, fixup_child,
NULL);
int tree_child;
@@ -511,7 +511,7 @@ static int overlay_apply_node(void *fdt, int target,
return ret;
}
- fdt_for_each_subnode(fdto, node, fragment) {
+ fdt_for_each_subnode(node, fdto, fragment) {
const char *name = fdt_get_name(fdto, node, NULL);
int nnode;
int ret;
@@ -550,7 +550,7 @@ static int overlay_merge(void *dt, void *dto)
{
int fragment;
- fdt_for_each_subnode(dto, fragment, 0) {
+ fdt_for_each_subnode(fragment, dto, 0) {
int overlay;
int target;
int ret;
diff --git a/lib/libfdt/fdt_ro.c b/lib/libfdt/fdt_ro.c
index 9cc98db6e2..7e894b742b 100644
--- a/lib/libfdt/fdt_ro.c
+++ b/lib/libfdt/fdt_ro.c
@@ -60,11 +60,11 @@ uint32_t fdt_get_max_phandle(const void *fdt)
return max_phandle;
if (offset < 0)
- return 0;
+ return (uint32_t)-1;
phandle = fdt_get_phandle(fdt, offset);
if (phandle == (uint32_t)-1)
- return 0;
+ continue;
if (phandle > max_phandle)
max_phandle = phandle;
@@ -204,6 +204,11 @@ int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen)
return offset;
}
+int fdt_path_offset(const void *fdt, const char *path)
+{
+ return fdt_path_offset_namelen(fdt, path, strlen(path));
+}
+
const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
{
const struct fdt_node_header *nh = _fdt_offset_ptr(fdt, nodeoffset);
@@ -538,80 +543,104 @@ int fdt_stringlist_contains(const char *strlist, int listlen, const char *str)
return 0;
}
-int fdt_count_strings(const void *fdt, int node, const char *property)
+int fdt_stringlist_count(const void *fdt, int nodeoffset, const char *property)
{
- int length, i, count = 0;
- const char *list;
+ const char *list, *end;
+ int length, count = 0;
- list = fdt_getprop(fdt, node, property, &length);
+ list = fdt_getprop(fdt, nodeoffset, property, &length);
if (!list)
- return length;
+ return -length;
+
+ end = list + length;
+
+ while (list < end) {
+ length = strnlen(list, end - list) + 1;
- for (i = 0; i < length; i++) {
- int len = strlen(list);
+ /* Abort if the last string isn't properly NUL-terminated. */
+ if (list + length > end)
+ return -FDT_ERR_BADVALUE;
- list += len + 1;
- i += len;
+ list += length;
count++;
}
return count;
}
-int fdt_find_string(const void *fdt, int node, const char *property,
- const char *string)
+int fdt_stringlist_search(const void *fdt, int nodeoffset, const char *property,
+ const char *string)
{
+ int length, len, idx = 0;
const char *list, *end;
- int len, index = 0;
- list = fdt_getprop(fdt, node, property, &len);
+ list = fdt_getprop(fdt, nodeoffset, property, &length);
if (!list)
- return len;
+ return -length;
- end = list + len;
- len = strlen(string);
+ len = strlen(string) + 1;
+ end = list + length;
while (list < end) {
- int l = strlen(list);
+ length = strnlen(list, end - list) + 1;
- if (l == len && memcmp(list, string, len) == 0)
- return index;
+ /* Abort if the last string isn't properly NUL-terminated. */
+ if (list + length > end)
+ return -FDT_ERR_BADVALUE;
- list += l + 1;
- index++;
+ if (length == len && memcmp(list, string, length) == 0)
+ return idx;
+
+ list += length;
+ idx++;
}
return -FDT_ERR_NOTFOUND;
}
-int fdt_get_string_index(const void *fdt, int node, const char *property,
- int index, const char **output)
+const char *fdt_stringlist_get(const void *fdt, int nodeoffset,
+ const char *property, int idx,
+ int *lenp)
{
- const char *list;
- int length, i;
+ const char *list, *end;
+ int length;
- list = fdt_getprop(fdt, node, property, &length);
+ list = fdt_getprop(fdt, nodeoffset, property, &length);
+ if (!list) {
+ if (lenp)
+ *lenp = length;
- for (i = 0; i < length; i++) {
- int len = strlen(list);
+ return NULL;
+ }
- if (index == 0) {
- *output = list;
- return 0;
+ end = list + length;
+
+ while (list < end) {
+ length = strnlen(list, end - list) + 1;
+
+ /* Abort if the last string isn't properly NUL-terminated. */
+ if (list + length > end) {
+ if (lenp)
+ *lenp = -FDT_ERR_BADVALUE;
+
+ return NULL;
}
- list += len + 1;
- i += len;
- index--;
+ if (idx == 0) {
+ if (lenp)
+ *lenp = length - 1;
+
+ return list;
+ }
+
+ list += length;
+ idx--;
}
- return -FDT_ERR_NOTFOUND;
-}
+ if (lenp)
+ *lenp = -FDT_ERR_NOTFOUND;
-int fdt_get_string(const void *fdt, int node, const char *property,
- const char **output)
-{
- return fdt_get_string_index(fdt, node, property, 0, output);
+ return NULL;
}
int fdt_node_check_compatible(const void *fdt, int nodeoffset,
@@ -623,10 +652,8 @@ int fdt_node_check_compatible(const void *fdt, int nodeoffset,
prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
if (!prop)
return len;
- if (fdt_stringlist_contains(prop, len, compatible))
- return 0;
- else
- return 1;
+
+ return !fdt_stringlist_contains(prop, len, compatible);
}
int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
diff --git a/lib/libfdt/fdt_rw.c b/lib/libfdt/fdt_rw.c
index 47447b2bce..87d4030fb1 100644
--- a/lib/libfdt/fdt_rw.c
+++ b/lib/libfdt/fdt_rw.c
@@ -60,6 +60,8 @@ static int _fdt_splice(void *fdt, void *splicepoint, int oldlen, int newlen)
if (((p + oldlen) < p) || ((p + oldlen) > end))
return -FDT_ERR_BADOFFSET;
+ if ((p < (char *)fdt) || ((end - oldlen + newlen) < (char *)fdt))
+ return -FDT_ERR_BADOFFSET;
if ((end - oldlen + newlen) > ((char *)fdt + fdt_totalsize(fdt)))
return -FDT_ERR_NOSPACE;
memmove(p + newlen, p + oldlen, end - p - oldlen);
@@ -164,7 +166,7 @@ static int _fdt_resize_property(void *fdt, int nodeoffset, const char *name,
int err;
*prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
- if (!(*prop))
+ if (!*prop)
return oldlen;
if ((err = _fdt_splice_struct(fdt, (*prop)->data, FDT_TAGALIGN(oldlen),
diff --git a/lib/libfdt/fdt_wip.c b/lib/libfdt/fdt_wip.c
index 216c51287d..45fb964120 100644
--- a/lib/libfdt/fdt_wip.c
+++ b/lib/libfdt/fdt_wip.c
@@ -16,7 +16,7 @@
int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
const char *name, int namelen,
- uint32_t index, const void *val,
+ uint32_t idx, const void *val,
int len)
{
void *propval;
@@ -27,10 +27,10 @@ int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
if (!propval)
return proplen;
- if (proplen < (len + index))
+ if (proplen < (len + idx))
return -FDT_ERR_NOSPACE;
- memcpy(propval + index, val, len);
+ memcpy((char *)propval + idx, val, len);
return 0;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-02 18:35:30 +0000