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Virtual drives: Introduce VFLAG_READONLY

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This commit is contained in:
d0k3 2017-08-25 13:07:29 +02:00
parent 99a638a084
commit 3407b3d5da
6 changed files with 24 additions and 17 deletions
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3
source/virtual/vcart.c
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@ -22,6 +22,7 @@ bool ReadVCartDir(VirtualFile* vfile, VirtualDir* vdir) {
GetCartName(name, cdata); GetCartName(name, cdata);
memset(vfile, 0, sizeof(VirtualFile)); memset(vfile, 0, sizeof(VirtualFile));
vfile->keyslot = 0xFF; // unused vfile->keyslot = 0xFF; // unused
vfile->flags = VFLAG_READONLY;
while (++vdir->index <= 5) { while (++vdir->index <= 5) {
if ((vdir->index == 0) && (cdata->data_size < FAT_LIMIT)) { // standard full rom if ((vdir->index == 0) && (cdata->data_size < FAT_LIMIT)) { // standard full rom
@ -45,7 +46,7 @@ bool ReadVCartDir(VirtualFile* vfile, VirtualDir* vdir) {
} else if ((vdir->index == 5) && (cdata->cart_type & CART_CTR)) { // private header } else if ((vdir->index == 5) && (cdata->cart_type & CART_CTR)) { // private header
snprintf(vfile->name, 32, "%s-priv.bin", name); snprintf(vfile->name, 32, "%s-priv.bin", name);
vfile->size = PRIV_HDR_SIZE; vfile->size = PRIV_HDR_SIZE;
vfile->flags = VFLAG_PRIV_HDR; vfile->flags |= VFLAG_PRIV_HDR;
return true; return true;
} }
} }

7
source/virtual/vgame.c
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@ -726,7 +726,7 @@ bool OpenVGameDir(VirtualDir* vdir, VirtualFile* ventry) {
bool ReadVGameDirLv3(VirtualFile* vfile, VirtualDir* vdir) { bool ReadVGameDirLv3(VirtualFile* vfile, VirtualDir* vdir) {
vfile->name[0] = '\0'; vfile->name[0] = '\0';
BuildLv3Index(&lv3idx, romfslv3); BuildLv3Index(&lv3idx, romfslv3);
vfile->flags = VFLAG_LV3; vfile->flags = VFLAG_LV3 | VFLAG_READONLY;
vfile->keyslot = ((offset_ncch != (u64) -1) && NCCH_ENCRYPTED(ncch)) ? vfile->keyslot = ((offset_ncch != (u64) -1) && NCCH_ENCRYPTED(ncch)) ?
0x2C : 0xFF; // actual keyslot may be different 0x2C : 0xFF; // actual keyslot may be different
@ -801,7 +801,7 @@ bool ReadVGameDirNitro(VirtualFile* vfile, VirtualDir* vdir) {
u8* fat = nitrofs + twl->fat_offset - twl->fnt_offset; u8* fat = nitrofs + twl->fat_offset - twl->fnt_offset;
vfile->name[0] = '\0'; vfile->name[0] = '\0';
vfile->flags = VFLAG_NITRO; vfile->flags = VFLAG_NITRO | VFLAG_READONLY;
vfile->keyslot = 0; vfile->keyslot = 0;
// start from parent dir object // start from parent dir object
@ -863,8 +863,9 @@ bool ReadVGameDir(VirtualFile* vfile, VirtualDir* vdir) {
} }
if (++vdir->index < n) { if (++vdir->index < n) {
// copy current template to vfile // copy current template to vfile and set readonly flag
memcpy(vfile, templates + vdir->index, sizeof(VirtualFile)); memcpy(vfile, templates + vdir->index, sizeof(VirtualFile));
vfile->flags |= VFLAG_READONLY;
return true; return true;
} }

4
source/virtual/virtual.c
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@ -170,7 +170,9 @@ int WriteVirtualFile(const VirtualFile* vfile, const void* buffer, u64 offset, u
count = vfile->size - offset; count = vfile->size - offset;
if (bytes_written) *bytes_written = count; if (bytes_written) *bytes_written = count;
if (vfile->flags & (VRT_SYSNAND|VRT_EMUNAND|VRT_IMGNAND)) { if (vfile->flags & VFLAG_READONLY) {
return -1;
} else if (vfile->flags & (VRT_SYSNAND|VRT_EMUNAND|VRT_IMGNAND)) {
return WriteVNandFile(vfile, buffer, offset, count); return WriteVNandFile(vfile, buffer, offset, count);
} else if (vfile->flags & VRT_MEMORY) { } else if (vfile->flags & VRT_MEMORY) {
return WriteVMemFile(vfile, buffer, offset, count); return WriteVMemFile(vfile, buffer, offset, count);

23
source/virtual/virtual.h
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@ -7,26 +7,27 @@
#define VRT_EMUNAND NAND_EMUNAND #define VRT_EMUNAND NAND_EMUNAND
#define VRT_IMGNAND NAND_IMGNAND #define VRT_IMGNAND NAND_IMGNAND
#define VRT_XORPAD NAND_ZERONAND #define VRT_XORPAD NAND_ZERONAND
#define VRT_MEMORY (1UL<<10) #define VRT_MEMORY (1UL<<4)
#define VRT_GAME (1UL<<11) #define VRT_GAME (1UL<<5)
#define VRT_TICKDB (1UL<<12) #define VRT_TICKDB (1UL<<6)
#define VRT_KEYDB (1UL<<13) #define VRT_KEYDB (1UL<<7)
#define VRT_CART (1UL<<14) #define VRT_CART (1UL<<8)
#define VRT_SOURCE (VRT_SYSNAND|VRT_EMUNAND|VRT_IMGNAND|VRT_XORPAD|VRT_MEMORY|VRT_GAME|VRT_TICKDB|VRT_KEYDB|VRT_CART) #define VRT_SOURCE (VRT_SYSNAND|VRT_EMUNAND|VRT_IMGNAND|VRT_XORPAD|VRT_MEMORY|VRT_GAME|VRT_TICKDB|VRT_KEYDB|VRT_CART)
#define VFLAG_DIR (1UL<<16) #define VFLAG_DIR (1UL<<10)
#define VFLAG_ROOT (1UL<<17) #define VFLAG_ROOT (1UL<<11)
#define VFLAG_LV3 (1UL<<18) #define VFLAG_READONLY (1UL<<12)
#define VFLAG_LV3 (1UL<<13)
#define VRT_DRIVES {'S', VRT_SYSNAND}, {'E', VRT_EMUNAND}, {'I', VRT_IMGNAND}, {'X', VRT_XORPAD }, \ #define VRT_DRIVES {'S', VRT_SYSNAND}, {'E', VRT_EMUNAND}, {'I', VRT_IMGNAND}, {'X', VRT_XORPAD }, \
{'M', VRT_MEMORY}, {'G', VRT_GAME}, {'K', VRT_KEYDB}, {'T', VRT_TICKDB}, {'C', VRT_CART} {'M', VRT_MEMORY}, {'G', VRT_GAME}, {'K', VRT_KEYDB}, {'T', VRT_TICKDB}, {'C', VRT_CART}
// virtual file flag (subject to change): // virtual file flag (subject to change):
// bits 0...9 : reserved for NAND virtual sources and info // bits 0...3 : reserved for NAND virtual sources and info
// bits 10...15: reserved for other virtual sources // bits 4...9 : reserved for other virtual sources
// bits 16...18: reserved for external flags // bits 10...18: reserved for external flags
// bits 19...31: reserved for internal flags (different per source, see vgame.c) // bits 19...31: reserved for internal flags (different per source, see vgame.c)
typedef struct { typedef struct {
char name[32]; char name[32];

1
source/virtual/vkeydb.c
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@ -50,6 +50,7 @@ bool ReadVKeyDbDir(VirtualFile* vfile, VirtualDir* vdir) {
vfile->offset = vdir->index * sizeof(AesKeyInfo); vfile->offset = vdir->index * sizeof(AesKeyInfo);
vfile->size = 16; // standard size of a key vfile->size = 16; // standard size of a key
vfile->keyslot = 0xFF; vfile->keyslot = 0xFF;
vfile->flags = VFLAG_READONLY;
return true; // found return true; // found
} }

3
source/virtual/vtickdb.c
View File

@ -113,7 +113,7 @@ bool ReadVTickDbDir(VirtualFile* vfile, VirtualDir* vdir) {
vfile->offset = tick_entry->offset; vfile->offset = tick_entry->offset;
vfile->size = sizeof(Ticket); vfile->size = sizeof(Ticket);
vfile->keyslot = 0xFF; vfile->keyslot = 0xFF;
vfile->flags = vdir->flags & ~VFLAG_DIR; vfile->flags = (vdir->flags | VFLAG_READONLY) & ~VFLAG_DIR;
return true; // found return true; // found
} }
@ -123,6 +123,7 @@ bool ReadVTickDbDir(VirtualFile* vfile, VirtualDir* vdir) {
while (++vdir->index < n_templates) { while (++vdir->index < n_templates) {
// copy current template to vfile // copy current template to vfile
memcpy(vfile, templates + vdir->index, sizeof(VirtualFile)); memcpy(vfile, templates + vdir->index, sizeof(VirtualFile));
vfile->flags |= VFLAG_READONLY;
return true; // found return true; // found
} }
} }