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Harmonizing coding style.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2023-02-14 23:11:51 +01:00
parent 31e66007d3
commit 12bdcbd1f9
30 changed files with 1475 additions and 1036 deletions
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256
src/fs/file.c
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@@ -27,10 +27,13 @@ extern const uintptr_t start_data_pool;
extern const uintptr_t end_rom_pool;
extern const uintptr_t start_rom_pool;
extern int flash_write_data_to_file(file_t *file, const uint8_t *data, uint16_t len);
extern int flash_write_data_to_file_offset(file_t *file, const uint8_t *data, uint16_t len, uint16_t offset);
extern int flash_program_halfword (uintptr_t addr, uint16_t data);
extern int flash_program_word (uintptr_t addr, uint32_t data);
extern int flash_program_uintptr (uintptr_t addr, uintptr_t data);
extern int flash_write_data_to_file_offset(file_t *file,
const uint8_t *data,
uint16_t len,
uint16_t offset);
extern int flash_program_halfword(uintptr_t addr, uint16_t data);
extern int flash_program_word(uintptr_t addr, uint32_t data);
extern int flash_program_uintptr(uintptr_t addr, uintptr_t data);
extern int flash_program_block(uintptr_t addr, const uint8_t *data, size_t len);
extern uintptr_t flash_read_uintptr(uintptr_t addr);
extern uint16_t flash_read_uint16(uintptr_t addr);
@@ -39,7 +42,8 @@ extern uint8_t *flash_read(uintptr_t addr);
extern void low_flash_available();
//puts FCI in the RAPDU
void process_fci(const file_t *pe, int fmd) {
void process_fci(const file_t *pe, int fmd)
{
res_APDU_size = 0;
if (fmd) {
res_APDU[res_APDU_size++] = 0x6f;
@@ -56,14 +60,12 @@ void process_fci(const file_t *pe, int fmd) {
uint16_t len = ((int (*)(const file_t *, int))(pe->data))(pe, 0);
res_APDU[res_APDU_size++] = (len >> 8) & 0xff;
res_APDU[res_APDU_size++] = len & 0xff;
}
else {
} else {
uint16_t v = file_get_size(pe);
res_APDU[res_APDU_size++] = v >> 8;
res_APDU[res_APDU_size++] = v & 0xff;
}
}
else {
} else {
memset(res_APDU+res_APDU_size, 0, 2);
res_APDU_size += 2;
}
@@ -71,12 +73,13 @@ void process_fci(const file_t *pe, int fmd) {
res_APDU[res_APDU_size++] = 0x82;
res_APDU[res_APDU_size++] = 1;
res_APDU[res_APDU_size] = 0;
if (pe->type == FILE_TYPE_INTERNAL_EF)
if (pe->type == FILE_TYPE_INTERNAL_EF) {
res_APDU[res_APDU_size++] |= 0x08;
else if (pe->type == FILE_TYPE_WORKING_EF)
} else if (pe->type == FILE_TYPE_WORKING_EF) {
res_APDU[res_APDU_size++] |= pe->ef_structure & 0x7;
else if (pe->type == FILE_TYPE_DF)
} else if (pe->type == FILE_TYPE_DF) {
res_APDU[res_APDU_size++] |= 0x38;
}
res_APDU[res_APDU_size++] = 0x83;
res_APDU[res_APDU_size++] = 2;
@@ -84,9 +87,9 @@ void process_fci(const file_t *pe, int fmd) {
res_APDU_size += 2;
if (pe->name) {
res_APDU[res_APDU_size++] = 0x84;
res_APDU[res_APDU_size++] = MIN(pe->name[0],16);
memcpy(res_APDU+res_APDU_size, pe->name+2, MIN(pe->name[0],16));
res_APDU_size += MIN(pe->name[0],16);
res_APDU[res_APDU_size++] = MIN(pe->name[0], 16);
memcpy(res_APDU+res_APDU_size, pe->name+2, MIN(pe->name[0], 16));
res_APDU_size += MIN(pe->name[0], 16);
}
memcpy(res_APDU+res_APDU_size, "\x8A\x01\x05", 3); //life-cycle (5 -> activated)
res_APDU_size += 3;
@@ -96,12 +99,13 @@ void process_fci(const file_t *pe, int fmd) {
res_APDU[res_APDU_size++] = 0xA5;
res_APDU[res_APDU_size++] = 0x81;
res_APDU[res_APDU_size++] = meta_size;
memcpy(res_APDU+res_APDU_size,meta_data,meta_size);
memcpy(res_APDU+res_APDU_size, meta_data, meta_size);
res_APDU_size += meta_size;
}
res_APDU[1] = res_APDU_size-2;
if (fmd)
if (fmd) {
res_APDU[3] = res_APDU_size-4;
}
}
#define MAX_DYNAMIC_FILES 128
@@ -110,19 +114,24 @@ file_t dynamic_file[MAX_DYNAMIC_FILES];
bool card_terminated = false;
bool is_parent(const file_t *child, const file_t *parent) {
if (child == parent)
bool is_parent(const file_t *child, const file_t *parent)
{
if (child == parent) {
return true;
if (child == MF)
}
if (child == MF) {
return false;
}
return is_parent(&file_entries[child->parent], parent);
}
file_t *get_parent(file_t *f) {
file_t *get_parent(file_t *f)
{
return &file_entries[f->parent];
}
file_t *search_by_name(uint8_t *name, uint16_t namelen) {
file_t *search_by_name(uint8_t *name, uint16_t namelen)
{
for (file_t *p = file_entries; p != file_last; p++) {
if (p->name && *p->name == apdu.nc && memcmp(p->name+1, name, namelen) == 0) {
return p;
@@ -131,29 +140,37 @@ file_t *search_by_name(uint8_t *name, uint16_t namelen) {
return NULL;
}
file_t *search_by_fid(const uint16_t fid, const file_t *parent, const uint8_t sp) {
file_t *search_by_fid(const uint16_t fid, const file_t *parent, const uint8_t sp)
{
for (file_t *p = file_entries; p != file_last; p++) {
if (p->fid != 0x0000 && p->fid == fid) {
if (!parent || (parent && is_parent(p, parent))) {
if (!sp || sp == SPECIFY_ANY || (((sp & SPECIFY_EF) && (p->type & FILE_TYPE_INTERNAL_EF)) || ((sp & SPECIFY_DF) && p->type == FILE_TYPE_DF)))
if (!sp || sp == SPECIFY_ANY ||
(((sp & SPECIFY_EF) && (p->type & FILE_TYPE_INTERNAL_EF)) ||
((sp & SPECIFY_DF) && p->type == FILE_TYPE_DF))) {
return p;
}
}
}
}
return NULL;
}
uint8_t make_path_buf(const file_t *pe, uint8_t *buf, uint8_t buflen, const file_t *top) {
if (!buflen)
uint8_t make_path_buf(const file_t *pe, uint8_t *buf, uint8_t buflen, const file_t *top)
{
if (!buflen) {
return 0;
if (pe == top) //MF or relative DF
}
if (pe == top) { //MF or relative DF
return 0;
}
put_uint16_t(pe->fid, buf);
return make_path_buf(&file_entries[pe->parent], buf+2, buflen-2, top)+2;
}
uint8_t make_path(const file_t *pe, const file_t *top, uint8_t *path) {
uint8_t make_path(const file_t *pe, const file_t *top, uint8_t *path)
{
uint8_t buf[MAX_DEPTH*2], *p = path;
put_uint16_t(pe->fid, buf);
uint8_t depth = make_path_buf(&file_entries[pe->parent], buf+2, sizeof(buf)-2, top)+2;
@@ -164,15 +181,17 @@ uint8_t make_path(const file_t *pe, const file_t *top, uint8_t *path) {
return depth;
}
file_t *search_by_path(const uint8_t *pe_path, uint8_t pathlen, const file_t *parent) {
file_t *search_by_path(const uint8_t *pe_path, uint8_t pathlen, const file_t *parent)
{
uint8_t path[MAX_DEPTH*2];
if (pathlen > sizeof(path)) {
return NULL;
}
for (file_t *p = file_entries; p != file_last; p++) {
uint8_t depth = make_path(p, parent, path);
if (pathlen == depth && memcmp(path, pe_path, depth) == 0)
if (pathlen == depth && memcmp(path, pe_path, depth) == 0) {
return p;
}
}
return NULL;
}
@@ -182,65 +201,73 @@ file_t *currentDF = NULL;
const file_t *selected_applet = NULL;
bool isUserAuthenticated = false;
bool authenticate_action(const file_t *ef, uint8_t op) {
bool authenticate_action(const file_t *ef, uint8_t op)
{
uint8_t acl = ef->acl[op];
if (acl == 0x0)
if (acl == 0x0) {
return true;
else if (acl == 0xff)
} else if (acl == 0xff) {
return false;
else if (acl == 0x90 || (acl & 0x9F) == 0x10) {
// PIN required.
} else if (acl == 0x90 || (acl & 0x9F) == 0x10) {
// PIN required.
if (isUserAuthenticated) {
return true;
}
else {
} else {
return false;
}
}
return false;
}
void initialize_flash(bool hard) {
void initialize_flash(bool hard)
{
if (hard) {
const uint8_t empty[8] = { 0 };
flash_program_block(end_data_pool, empty, sizeof(empty));
low_flash_available();
}
for (file_t *f = file_entries; f != file_last; f++) {
if ((f->type & FILE_DATA_FLASH) == FILE_DATA_FLASH)
if ((f->type & FILE_DATA_FLASH) == FILE_DATA_FLASH) {
f->data = NULL;
}
}
dynamic_files = 0;
}
void scan_region(bool persistent) {
void scan_region(bool persistent)
{
uintptr_t endp = end_data_pool, startp = start_data_pool;
if (persistent) {
endp = end_rom_pool;
startp = start_rom_pool;
}
for (uintptr_t base = flash_read_uintptr(endp); base >= startp; base = flash_read_uintptr(base)) {
if (base == 0x0) //all is empty
for (uintptr_t base = flash_read_uintptr(endp); base >= startp;
base = flash_read_uintptr(base)) {
if (base == 0x0) { //all is empty
break;
}
uint16_t fid = flash_read_uint16(base+sizeof(uintptr_t)+sizeof(uintptr_t));
printf("[%x] scan fid %x, len %d\r\n",(unsigned int)base,fid,flash_read_uint16(base+sizeof(uintptr_t)+sizeof(uintptr_t)+sizeof(uint16_t)));
file_t *file = (file_t *)search_by_fid(fid, NULL, SPECIFY_EF);
printf("[%x] scan fid %x, len %d\r\n", (unsigned int) base, fid,
flash_read_uint16(base+sizeof(uintptr_t)+sizeof(uintptr_t)+sizeof(uint16_t)));
file_t *file = (file_t *) search_by_fid(fid, NULL, SPECIFY_EF);
if (!file) {
file = file_new(fid);
}
if (file)
file->data = (uint8_t *)(base+sizeof(uintptr_t)+sizeof(uintptr_t)+sizeof(uint16_t));
if (file) {
file->data = (uint8_t *) (base+sizeof(uintptr_t)+sizeof(uintptr_t)+sizeof(uint16_t));
}
if (flash_read_uintptr(base) == 0x0) {
break;
}
}
}
void wait_flash_finish();
void scan_flash() {
void scan_flash()
{
initialize_flash(false); //soft initialization
if (*(uintptr_t *)flash_read(end_rom_pool) == 0xffffffff && *(uintptr_t *)flash_read(end_rom_pool+sizeof(uintptr_t)) == 0xffffffff)
{
if (*(uintptr_t *) flash_read(end_rom_pool) == 0xffffffff &&
*(uintptr_t *) flash_read(end_rom_pool+sizeof(uintptr_t)) == 0xffffffff) {
printf("First initialization (or corrupted!)\r\n");
uint8_t empty[sizeof(uintptr_t)*2+sizeof(uint32_t)];
memset(empty, 0, sizeof(empty));
@@ -254,43 +281,55 @@ void scan_flash() {
scan_region(false);
}
uint8_t *file_read(const uint8_t *addr) {
return flash_read((uintptr_t)addr);
uint8_t *file_read(const uint8_t *addr)
{
return flash_read((uintptr_t) addr);
}
uint16_t file_read_uint16(const uint8_t *addr) {
return flash_read_uint16((uintptr_t)addr);
uint16_t file_read_uint16(const uint8_t *addr)
{
return flash_read_uint16((uintptr_t) addr);
}
uint8_t file_read_uint8(const uint8_t *addr) {
return flash_read_uint8((uintptr_t)addr);
uint8_t file_read_uint8(const uint8_t *addr)
{
return flash_read_uint8((uintptr_t) addr);
}
uint8_t *file_get_data(const file_t *tf) {
if (!tf || !tf->data)
uint8_t *file_get_data(const file_t *tf)
{
if (!tf || !tf->data) {
return NULL;
}
return file_read(tf->data+sizeof(uint16_t));
}
uint16_t file_get_size(const file_t *tf) {
if (!tf || !tf->data)
uint16_t file_get_size(const file_t *tf)
{
if (!tf || !tf->data) {
return 0;
}
return file_read_uint16(tf->data);
}
file_t *search_dynamic_file(uint16_t fid) {
file_t *search_dynamic_file(uint16_t fid)
{
for (int i = 0; i < dynamic_files; i++) {
if (dynamic_file[i].fid == fid)
if (dynamic_file[i].fid == fid) {
return &dynamic_file[i];
}
}
return NULL;
}
int delete_dynamic_file(file_t *f) {
if (f == NULL)
int delete_dynamic_file(file_t *f)
{
if (f == NULL) {
return CCID_ERR_FILE_NOT_FOUND;
}
for (int i = 0; i < dynamic_files; i++) {
if (dynamic_file[i].fid == f->fid) {
for (int j = i+1; j < dynamic_files; j++)
for (int j = i+1; j < dynamic_files; j++) {
memcpy(&dynamic_file[j-1], &dynamic_file[j], sizeof(file_t));
}
dynamic_files--;
return CCID_OK;
}
@@ -298,12 +337,15 @@ int delete_dynamic_file(file_t *f) {
return CCID_ERR_FILE_NOT_FOUND;
}
file_t *file_new(uint16_t fid) {
file_t *file_new(uint16_t fid)
{
file_t *f;
if ((f = search_dynamic_file(fid)) || (f = search_by_fid(fid, NULL, SPECIFY_EF)))
if ((f = search_dynamic_file(fid)) || (f = search_by_fid(fid, NULL, SPECIFY_EF))) {
return f;
if (dynamic_files == MAX_DYNAMIC_FILES)
}
if (dynamic_files == MAX_DYNAMIC_FILES) {
return NULL;
}
f = &dynamic_file[dynamic_files];
dynamic_files++;
file_t file = {
@@ -313,50 +355,57 @@ file_t *file_new(uint16_t fid) {
.type = FILE_TYPE_WORKING_EF,
.ef_structure = FILE_EF_TRANSPARENT,
.data = NULL,
.acl = {0}
.acl = { 0 }
};
memcpy(f, &file, sizeof(file_t));
//memset((uint8_t *)f->acl, 0x90, sizeof(f->acl));
return f;
}
int meta_find(uint16_t fid, uint8_t **out) {
int meta_find(uint16_t fid, uint8_t **out)
{
file_t *ef = search_by_fid(EF_META, NULL, SPECIFY_EF);
if (!ef)
if (!ef) {
return CCID_ERR_FILE_NOT_FOUND;
}
uint16_t tag = 0x0;
uint8_t *tag_data = NULL, *p = NULL, *data = file_get_data(ef);
size_t tag_len = 0, data_len = file_get_size(ef);
while (walk_tlv(data, data_len, &p, &tag, &tag_len, &tag_data)) {
if (tag_len < 2)
if (tag_len < 2) {
continue;
}
uint16_t cfid = (tag_data[0] << 8 | tag_data[1]);
if (cfid == fid) {
if (out)
if (out) {
*out = tag_data+2;
}
return tag_len-2;
}
}
return 0;
}
int meta_delete(uint16_t fid) {
int meta_delete(uint16_t fid)
{
file_t *ef = search_by_fid(EF_META, NULL, SPECIFY_EF);
if (!ef)
if (!ef) {
return CCID_ERR_FILE_NOT_FOUND;
}
uint16_t tag = 0x0;
uint8_t *tag_data = NULL, *p = NULL, *data = file_get_data(ef);
size_t tag_len = 0, data_len = file_get_size(ef);
uint8_t *fdata = NULL;
while (walk_tlv(data, data_len, &p, &tag, &tag_len, &tag_data)) {
uint8_t *tpos = p-tag_len-format_tlv_len(tag_len, NULL)-1;
if (tag_len < 2)
if (tag_len < 2) {
continue;
}
uint16_t cfid = (tag_data[0] << 8 | tag_data[1]);
if (cfid == fid) {
size_t new_len = data_len-1-tag_len-format_tlv_len(tag_len, NULL);
if (new_len == 0)
if (new_len == 0) {
flash_clear_file(ef);
else {
fdata = (uint8_t *)calloc(1, new_len);
} else {
fdata = (uint8_t *) calloc(1, new_len);
if (tpos > data) {
memcpy(fdata, data, tpos-data);
}
@@ -365,8 +414,9 @@ int meta_delete(uint16_t fid) {
}
int r = flash_write_data_to_file(ef, fdata, new_len);
free(fdata);
if (r != CCID_OK)
if (r != CCID_OK) {
return CCID_EXEC_ERROR;
}
}
low_flash_available();
break;
@@ -374,41 +424,44 @@ int meta_delete(uint16_t fid) {
}
return CCID_OK;
}
int meta_add(uint16_t fid, const uint8_t *data, uint16_t len) {
int meta_add(uint16_t fid, const uint8_t *data, uint16_t len)
{
int r;
file_t *ef = search_by_fid(EF_META, NULL, SPECIFY_EF);
if (!ef)
if (!ef) {
return CCID_ERR_FILE_NOT_FOUND;
}
uint16_t ef_size = file_get_size(ef);
uint8_t *fdata = (uint8_t *)calloc(1, ef_size);
uint8_t *fdata = (uint8_t *) calloc(1, ef_size);
memcpy(fdata, file_get_data(ef), ef_size);
uint16_t tag = 0x0;
uint8_t *tag_data = NULL, *p = NULL;
size_t tag_len = 0;
while (walk_tlv(fdata, ef_size, &p, &tag, &tag_len, &tag_data)) {
if (tag_len < 2)
if (tag_len < 2) {
continue;
}
uint16_t cfid = (tag_data[0] << 8 | tag_data[1]);
if (cfid == fid) {
if (tag_len-2 == len) { //an update
memcpy(p-tag_len+2, data, len);
r = flash_write_data_to_file(ef, fdata, ef_size);
free(fdata);
if (r != CCID_OK)
if (r != CCID_OK) {
return CCID_EXEC_ERROR;
}
return CCID_OK;
}
else { //needs reallocation
} else { //needs reallocation
uint8_t *tpos = p-asn1_len_tag(tag, tag_len);
memmove(tpos, p, fdata+ef_size-p);
tpos += fdata+ef_size-p;
volatile uintptr_t meta_offset = tpos-fdata;
ef_size += len - (tag_len-2);
if (len > tag_len-2) {
uint8_t *fdata_new = (uint8_t *)realloc(fdata, ef_size);
if (fdata_new != NULL)
uint8_t *fdata_new = (uint8_t *) realloc(fdata, ef_size);
if (fdata_new != NULL) {
fdata = fdata_new;
else {
} else {
free(fdata);
return CCID_ERR_MEMORY_FATAL;
}
@@ -421,13 +474,14 @@ int meta_add(uint16_t fid, const uint8_t *data, uint16_t len) {
memcpy(f, data, len);
r = flash_write_data_to_file(ef, fdata, ef_size);
free(fdata);
if (r != CCID_OK)
if (r != CCID_OK) {
return CCID_EXEC_ERROR;
}
return CCID_OK;
}
}
}
fdata = (uint8_t *)realloc(fdata, ef_size+asn1_len_tag(fid & 0x1f, len+2));
fdata = (uint8_t *) realloc(fdata, ef_size+asn1_len_tag(fid & 0x1f, len+2));
uint8_t *f = fdata+ef_size;
*f++ = fid & 0x1f;
f += format_tlv_len(len+2, f);
@@ -436,23 +490,29 @@ int meta_add(uint16_t fid, const uint8_t *data, uint16_t len) {
memcpy(f, data, len);
r = flash_write_data_to_file(ef, fdata, ef_size+asn1_len_tag(fid & 0x1f, len+2));
free(fdata);
if (r != CCID_OK)
if (r != CCID_OK) {
return CCID_EXEC_ERROR;
}
return CCID_OK;
}
bool file_has_data(file_t *f) {
return (f != NULL && f->data != NULL && file_get_size(f) > 0);
bool file_has_data(file_t *f)
{
return f != NULL && f->data != NULL && file_get_size(f) > 0;
}
int delete_file(file_t *ef) {
if (ef == NULL)
int delete_file(file_t *ef)
{
if (ef == NULL) {
return CCID_OK;
}
meta_delete(ef->fid);
if (flash_clear_file(ef) != CCID_OK)
if (flash_clear_file(ef) != CCID_OK) {
return CCID_EXEC_ERROR;
if (delete_dynamic_file(ef) != CCID_OK)
}
if (delete_dynamic_file(ef) != CCID_OK) {
return CCID_EXEC_ERROR;
}
low_flash_available();
return CCID_OK;
}