Added neimod's ctrtool

Will be base code for improvments
2026-07-04 16:59:02 +00:00 · 2014-04-14 09:39:21 +08:00
commit 87681b8bc5
63 changed files with 22243 additions and 0 deletions
@@ -0,0 +1,128 @@
+#include <stdio.h>
+#include <string.h>
+
+#include "types.h"
+#include "ncsd.h"
+#include "utils.h"
+#include "ctr.h"
+
+
+void ncsd_init(ncsd_context* ctx)
+{
+	memset(ctx, 0, sizeof(ncsd_context));
+}
+
+void ncsd_set_offset(ncsd_context* ctx, u32 offset)
+{
+	ctx->offset = offset;
+}
+
+void ncsd_set_file(ncsd_context* ctx, FILE* file)
+{
+	ctx->file = file;
+}
+
+void ncsd_set_size(ncsd_context* ctx, u32 size)
+{
+	ctx->size = size;
+}
+
+void ncsd_set_usersettings(ncsd_context* ctx, settings* usersettings)
+{
+	ctx->usersettings = usersettings;
+}
+
+int ncsd_signature_verify(const void* blob, rsakey2048* key)
+{
+	u8* message = (u8*)blob + 0x100;
+	u8* sig = (u8*)blob;
+	u8 hash[0x20];
+
+	ctr_sha_256(message, 0x100, hash);
+	return ctr_rsa_verify_hash(sig, hash, key);
+}
+
+void ncsd_process(ncsd_context* ctx, u32 actions)
+{
+	fseek(ctx->file, ctx->offset, SEEK_SET);
+	fread(&ctx->header, 1, 0x200, ctx->file);
+
+	if (getle32(ctx->header.magic) != MAGIC_NCSD)
+	{
+		fprintf(stdout, "Error, NCSD segment corrupted\n");
+		return;
+	}
+
+
+	if (actions & VerifyFlag)
+	{
+		if (ctx->usersettings)
+			ctx->headersigcheck = ncsd_signature_verify(&ctx->header, &ctx->usersettings->keys.ncsdrsakey);
+	}
+
+	if (actions & InfoFlag)
+		ncsd_print(ctx);
+
+	ncch_set_file(&ctx->ncch, ctx->file);
+	ncch_set_offset(&ctx->ncch, 0x4000);
+	ncch_set_size(&ctx->ncch, ctx->size - 0x4000);
+	ncch_set_usersettings(&ctx->ncch, ctx->usersettings);
+	ncch_process(&ctx->ncch, actions);
+}
+
+unsigned int ncsd_get_mediaunit_size(ncsd_context* ctx)
+{
+	unsigned int mediaunitsize = settings_get_mediaunit_size(ctx->usersettings);
+
+	if (mediaunitsize == 0)
+		mediaunitsize = 1<<(9+ctx->header.flags[6]);
+
+	return mediaunitsize;
+}
+
+void ncsd_print(ncsd_context* ctx)
+{
+	char magic[5];
+	ctr_ncsdheader* header = &ctx->header;
+	unsigned int i;
+	unsigned int mediaunitsize = ncsd_get_mediaunit_size(ctx);
+
+
+	memcpy(magic, header->magic, 4);
+	magic[4] = 0;
+
+	fprintf(stdout, "Header:                 %s\n", magic);
+	if (ctx->headersigcheck == Unchecked)
+		memdump(stdout, "Signature:              ", header->signature, 0x100);
+	else if (ctx->headersigcheck == Good)
+		memdump(stdout, "Signature (GOOD):       ", header->signature, 0x100);
+	else
+		memdump(stdout, "Signature (FAIL):       ", header->signature, 0x100);       
+	fprintf(stdout, "Media size:             0x%08x\n", getle32(header->mediasize));
+	fprintf(stdout, "Media id:               %016llx\n", getle64(header->mediaid));
+	//memdump(stdout, "Partition FS type:      ", header->partitionfstype, 8);
+	//memdump(stdout, "Partition crypt type:   ", header->partitioncrypttype, 8);
+	//memdump(stdout, "Partition offset/size:  ", header->partitionoffsetandsize, 0x40);
+	fprintf(stdout, "\n");
+	for(i=0; i<8; i++)
+	{
+		u32 partitionoffset = header->partitiongeometry[i].offset * mediaunitsize;
+		u32 partitionsize = header->partitiongeometry[i].size * mediaunitsize;
+
+		if (partitionsize != 0)
+		{
+			fprintf(stdout, "Partition %d            \n", i);
+			memdump(stdout, " Id:                    ", header->partitionid+i*8, 8);
+			fprintf(stdout, " Area:                  0x%08X-0x%08X\n", partitionoffset, partitionoffset+partitionsize);
+			fprintf(stdout, " Filesystem:            %02X\n", header->partitionfstype[i]);
+			fprintf(stdout, " Encryption:            %02X\n", header->partitioncrypttype[i]);
+			fprintf(stdout, "\n");
+		}
+	}
+	memdump(stdout, "Extended header hash:   ", header->extendedheaderhash, 0x20);
+	memdump(stdout, "Additional header size: ", header->additionalheadersize, 4);
+	memdump(stdout, "Sector zero offset:     ", header->sectorzerooffset, 4);
+	memdump(stdout, "Flags:                  ", header->flags, 8);
+	fprintf(stdout, " > Mediaunit size:      0x%X\n", mediaunitsize);
+
+}