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-rw-r--r--tools/patch-image/Makefile28
-rw-r--r--tools/patch-image/src/patch-cmdline.c79
-rw-r--r--tools/patch-image/src/patch-dtb.c101
3 files changed, 208 insertions, 0 deletions
diff --git a/tools/patch-image/Makefile b/tools/patch-image/Makefile
new file mode 100644
index 0000000000..cd2df5c8af
--- /dev/null
+++ b/tools/patch-image/Makefile
@@ -0,0 +1,28 @@
+#
+# Copyright (C) 2007-2012 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=patch-image
+
+include $(INCLUDE_DIR)/host-build.mk
+
+define Host/Compile
+ $(HOSTCC) $(HOST_CFLAGS) -include endian.h $(HOST_STATIC_LINKING) -o $(HOST_BUILD_DIR)/patch-cmdline src/patch-cmdline.c
+ $(HOSTCC) $(HOST_CFLAGS) -include endian.h $(HOST_STATIC_LINKING) -o $(HOST_BUILD_DIR)/patch-dtb src/patch-dtb.c
+endef
+
+define Host/Install
+ $(CP) $(HOST_BUILD_DIR)/patch-cmdline $(STAGING_DIR_HOST)/bin/
+ $(CP) $(HOST_BUILD_DIR)/patch-dtb $(STAGING_DIR_HOST)/bin/
+endef
+
+define Host/Clean
+ rm -f $(STAGING_DIR_HOST)/bin/patch-cmdline
+ rm -f $(STAGING_DIR_HOST)/bin/patch-dtb
+endef
+
+$(eval $(call HostBuild))
diff --git a/tools/patch-image/src/patch-cmdline.c b/tools/patch-image/src/patch-cmdline.c
new file mode 100644
index 0000000000..571f848d81
--- /dev/null
+++ b/tools/patch-image/src/patch-cmdline.c
@@ -0,0 +1,79 @@
+/*
+ * patch-cmdline.c - patch the kernel command line on rb532
+ *
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#define SEARCH_SPACE (16 * 1024)
+#define CMDLINE_MAX 512
+
+int main(int argc, char **argv)
+{
+ int fd, found = 0, len, ret = -1;
+ char *ptr, *p;
+
+ if (argc != 3) {
+ fprintf(stderr, "Usage: %s <file> <cmdline>\n", argv[0]);
+ goto err1;
+ }
+ len = strlen(argv[2]);
+ if (len + 9 > CMDLINE_MAX) {
+ fprintf(stderr, "Command line string too long\n");
+ goto err1;
+ }
+
+ if (((fd = open(argv[1], O_RDWR)) < 0) ||
+ (ptr = (char *) mmap(0, SEARCH_SPACE + CMDLINE_MAX, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1)) {
+ fprintf(stderr, "Could not open kernel image");
+ goto err2;
+ }
+
+ for (p = ptr; p < (ptr + SEARCH_SPACE); p += 4) {
+ if (memcmp(p, "CMDLINE:", 8) == 0) {
+ found = 1;
+ p += 8;
+ break;
+ }
+ }
+ if (!found) {
+ fprintf(stderr, "Command line marker not found!\n");
+ goto err3;
+ }
+
+ memset(p, 0, CMDLINE_MAX - 8);
+ strcpy(p, argv[2]);
+ msync(p, CMDLINE_MAX, MS_SYNC|MS_INVALIDATE);
+ ret = 0;
+
+err3:
+ munmap((void *) ptr, len);
+err2:
+ if (fd > 0)
+ close(fd);
+err1:
+ return ret;
+}
diff --git a/tools/patch-image/src/patch-dtb.c b/tools/patch-image/src/patch-dtb.c
new file mode 100644
index 0000000000..161e1dca2d
--- /dev/null
+++ b/tools/patch-image/src/patch-dtb.c
@@ -0,0 +1,101 @@
+/*
+ * patch-dtb.c - patch a dtb into an image
+ *
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * based on patch-cmdline.c
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#define SEARCH_SPACE (16 * 1024)
+#define DTB_MAX (16 * 1024)
+
+int main(int argc, char **argv)
+{
+ int fd, fddtb, found = 0, len, ret = -1;
+ char *ptr, *ptrdtb, *p;
+ struct stat s;
+
+ if (argc != 3) {
+ fprintf(stderr, "Usage: %s <file> <dtb>\n", argv[0]);
+ goto err1;
+ }
+ fddtb = open(argv[1], O_RDONLY);
+ if (!fddtb)
+ goto err1;
+
+ if (stat(argv[2], &s)) {
+ fprintf(stderr, "DTB not found\n");
+ goto err1;
+ }
+
+ len = s.st_size;
+ if (len + 8 > DTB_MAX) {
+ fprintf(stderr, "DTB too big\n");
+ goto err1;
+ }
+
+ if (((fddtb = open(argv[2], O_RDONLY)) < 0) ||
+ (ptrdtb = (char *) mmap(0, DTB_MAX, PROT_READ, MAP_SHARED, fddtb, 0)) == (void *) (-1)) {
+ fprintf(stderr, "Could not open DTB");
+ goto err2;
+ }
+
+ if (((fd = open(argv[1], O_RDWR)) < 0) ||
+ (ptr = (char *) mmap(0, SEARCH_SPACE + DTB_MAX, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1)) {
+ fprintf(stderr, "Could not open kernel image");
+ goto err3;
+ }
+
+ for (p = ptr; p < (ptr + SEARCH_SPACE); p += 4) {
+ if (memcmp(p, "OWRTDTB:", 8) == 0) {
+ found = 1;
+ p += 8;
+ break;
+ }
+ }
+ if (!found) {
+ fprintf(stderr, "DTB marker not found!\n");
+ goto err4;
+ }
+
+ memset(p, 0, DTB_MAX - 8);
+ memcpy(p, ptrdtb, len);
+ msync(p, len, MS_SYNC|MS_INVALIDATE);
+ ret = 0;
+
+err4:
+ munmap((void *) ptr, len);
+err3:
+ if (fd > 0)
+ close(fd);
+ munmap((void *) ptrdtb, len);
+err2:
+ if (fddtb > 0)
+ close(fddtb);
+err1:
+ return ret;
+}
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