#include "smsutil.h"
#include "simutil.h"
#include "storage.h"
-
-#define SIM_CACHE_MODE 0600
-#define SIM_CACHE_PATH STORAGEDIR "/%s-%i/%04x"
-#define SIM_CACHE_PATH_LEN(imsilen) (strlen(SIM_CACHE_PATH) - 3 + imsilen)
-#define SIM_CACHE_HEADER_SIZE 38
-#define SIM_FILE_INFO_SIZE 6
+#include "simfs.h"
static GSList *g_drivers = NULL;
-static gboolean sim_op_next(gpointer user_data);
-static gboolean sim_op_retrieve_next(gpointer user);
static void sim_own_numbers_update(struct ofono_sim *sim);
static void sim_pin_check(struct ofono_sim *sim);
static void sim_set_ready(struct ofono_sim *sim);
-static gboolean sim_op_read_block(gpointer user_data);
-
-struct sim_file_op {
- int id;
- gboolean cache;
- enum ofono_sim_file_structure structure;
- unsigned short offset;
- int num_bytes;
- int length;
- int record_length;
- int current;
- gconstpointer cb;
- gboolean is_read;
- void *buffer;
- void *userdata;
-};
struct ofono_sim {
/* Contents of the SIM file system, in rough initialization order */
enum ofono_sim_state state;
struct ofono_watchlist *state_watches;
- GQueue *simop_q;
- gint simop_source;
+ struct sim_fs *simfs;
DBusMessage *pending;
const struct ofono_sim_driver *driver;
return ret;
}
-static void sim_file_op_free(struct sim_file_op *node)
-{
- g_free(node);
-}
-
static void service_number_free(struct service_number *num)
{
g_free(num->id);
sim_efpl_read_cb, sim);
}
-static void sim_op_error(struct ofono_sim *sim)
-{
- struct sim_file_op *op = g_queue_pop_head(sim->simop_q);
-
- if (g_queue_get_length(sim->simop_q) > 0)
- sim->simop_source = g_timeout_add(0, sim_op_next, sim);
-
- if (op->is_read == TRUE)
- ((ofono_sim_file_read_cb_t) op->cb)
- (0, 0, 0, 0, 0, op->userdata);
- else
- ((ofono_sim_file_write_cb_t) op->cb)
- (0, op->userdata);
-
- sim_file_op_free(op);
-}
-
-static gboolean cache_record(const char *path, int current, int record_len,
- const unsigned char *data, int num_bytes,
- enum ofono_sim_file_structure type)
-{
- int r = 0;
- int fd;
-
- fd = TFR(open(path, O_RDWR));
-
- if (fd == -1)
- return FALSE;
-
- if (lseek(fd, (current - 1) * record_len +
- SIM_CACHE_HEADER_SIZE, SEEK_SET) != (off_t) -1)
- r = TFR(write(fd, data, num_bytes));
-
- /* update present bit for this block if we are a transparent file */
- if (type == OFONO_SIM_FILE_STRUCTURE_TRANSPARENT) {
- /* figure out which byte the right bit location is */
- int byte = (current - 1) / 8;
- int bit = (current - 1) % 8;
- guint8 cache;
-
- /* lseek to correct byte (skip file info) */
- lseek(fd, byte + SIM_FILE_INFO_SIZE, SEEK_SET);
-
- /* read byte */
- TFR(read(fd, &cache, 1));
-
- /* set present bit */
- cache |= (1 << bit);
-
- /* write back */
- lseek(fd, byte + SIM_FILE_INFO_SIZE, SEEK_SET);
- TFR(write(fd, &cache, 1));
- }
-
- TFR(close(fd));
-
- if (r < num_bytes) {
- unlink(path);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static void sim_op_retrieve_cb(const struct ofono_error *error,
- const unsigned char *data, int len, void *user)
-{
- struct ofono_sim *sim = user;
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
- int total = op->length / op->record_length;
- ofono_sim_file_read_cb_t cb = op->cb;
- char *imsi = sim->imsi;
-
- if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
- sim_op_error(sim);
- return;
- }
-
- cb(1, op->length, op->current, data, op->record_length, op->userdata);
-
- if (op->cache && imsi) {
- char *path = g_strdup_printf(SIM_CACHE_PATH,
- imsi, sim->phase, op->id);
-
- op->cache = cache_record(path, op->current, op->record_length,
- data, op->record_length,
- op->structure);
- g_free(path);
- }
-
- if (op->current == total) {
- op = g_queue_pop_head(sim->simop_q);
-
- sim_file_op_free(op);
-
- if (g_queue_get_length(sim->simop_q) > 0)
- sim->simop_source = g_timeout_add(0, sim_op_next, sim);
- } else {
- op->current += 1;
- sim->simop_source = g_timeout_add(0, sim_op_retrieve_next, sim);
- }
-}
-
-static gboolean sim_op_retrieve_next(gpointer user)
-{
- struct ofono_sim *sim = user;
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
-
- sim->simop_source = 0;
-
- switch (op->structure) {
- case OFONO_SIM_FILE_STRUCTURE_TRANSPARENT:
- if (!sim->driver->read_file_transparent) {
- sim_op_error(sim);
- return FALSE;
- }
-
- sim->driver->read_file_transparent(sim, op->id, 0, op->length,
- sim_op_retrieve_cb, sim);
- break;
- case OFONO_SIM_FILE_STRUCTURE_FIXED:
- if (!sim->driver->read_file_linear) {
- sim_op_error(sim);
- return FALSE;
- }
-
- sim->driver->read_file_linear(sim, op->id, op->current,
- op->record_length,
- sim_op_retrieve_cb, sim);
- break;
- case OFONO_SIM_FILE_STRUCTURE_CYCLIC:
- if (!sim->driver->read_file_cyclic) {
- sim_op_error(sim);
- return FALSE;
- }
-
- sim->driver->read_file_cyclic(sim, op->id, op->current,
- op->record_length,
- sim_op_retrieve_cb, sim);
- break;
- default:
- ofono_error("Unrecognized file structure, this can't happen");
- }
-
- return FALSE;
-}
-
-static void sim_op_info_cb(const struct ofono_error *error, int length,
- enum ofono_sim_file_structure structure,
- int record_length,
- const unsigned char access[3], void *data)
-{
- struct ofono_sim *sim = data;
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
- char *imsi = sim->imsi;
- enum sim_file_access update;
- enum sim_file_access invalidate;
- enum sim_file_access rehabilitate;
-
- if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
- sim_op_error(sim);
- return;
- }
-
- if (structure != op->structure) {
- ofono_error("Requested file structure differs from SIM: %x",
- op->id);
- sim_op_error(sim);
- return;
- }
-
- /* TS 11.11, Section 9.3 */
- update = file_access_condition_decode(access[0] & 0xf);
- rehabilitate = file_access_condition_decode((access[2] >> 4) & 0xf);
- invalidate = file_access_condition_decode(access[2] & 0xf);
-
- op->structure = structure;
- op->length = length;
- /* Never cache card holder writable files */
- op->cache = (update == SIM_FILE_ACCESS_ADM ||
- update == SIM_FILE_ACCESS_NEVER) &&
- (invalidate == SIM_FILE_ACCESS_ADM ||
- invalidate == SIM_FILE_ACCESS_NEVER) &&
- (rehabilitate == SIM_FILE_ACCESS_ADM ||
- rehabilitate == SIM_FILE_ACCESS_NEVER);
-
- if (structure == OFONO_SIM_FILE_STRUCTURE_TRANSPARENT)
- op->record_length = length;
- else
- op->record_length = record_length;
-
- if (op->num_bytes > 0)
- sim->simop_source = g_timeout_add(0, sim_op_read_block, sim);
- else {
- op->current = 1;
- sim->simop_source = g_timeout_add(0, sim_op_retrieve_next, sim);
- }
-
- if (op->cache && imsi) {
- unsigned char fileinfo[SIM_CACHE_HEADER_SIZE];
-
- memset(fileinfo, 0, SIM_CACHE_HEADER_SIZE);
-
- fileinfo[0] = error->type;
- fileinfo[1] = length >> 8;
- fileinfo[2] = length & 0xff;
- fileinfo[3] = structure;
- fileinfo[4] = record_length >> 8;
- fileinfo[5] = record_length & 0xff;
-
- if (write_file(fileinfo, SIM_CACHE_HEADER_SIZE, SIM_CACHE_MODE,
- SIM_CACHE_PATH, imsi, sim->phase,
- op->id) != SIM_CACHE_HEADER_SIZE)
- op->cache = FALSE;
- }
-}
-
-static void sim_op_write_cb(const struct ofono_error *error, void *data)
-{
- struct ofono_sim *sim = data;
- struct sim_file_op *op = g_queue_pop_head(sim->simop_q);
- ofono_sim_file_write_cb_t cb = op->cb;
-
- if (g_queue_get_length(sim->simop_q) > 0)
- sim->simop_source = g_timeout_add(0, sim_op_next, sim);
-
- if (error->type == OFONO_ERROR_TYPE_NO_ERROR)
- cb(1, op->userdata);
- else
- cb(0, op->userdata);
-
- sim_file_op_free(op);
-}
-
-static gboolean sim_op_check_cached(struct ofono_sim *sim)
-{
- char *imsi = sim->imsi;
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
- ofono_sim_file_read_cb_t cb = op->cb;
- char *path;
- int fd;
- unsigned char fileinfo[SIM_CACHE_HEADER_SIZE];
- ssize_t len;
- int error_type;
- unsigned int file_length;
- enum ofono_sim_file_structure structure;
- unsigned int record_length;
- unsigned int record;
- guint8 *buffer = NULL;
- gboolean ret = FALSE;
-
- if (!imsi)
- return FALSE;
-
- path = g_strdup_printf(SIM_CACHE_PATH, imsi, sim->phase, op->id);
-
- if (path == NULL)
- return FALSE;
-
- fd = TFR(open(path, O_RDONLY));
- g_free(path);
-
- if (fd == -1) {
- if (errno != ENOENT)
- DBG("Error %i opening cache file for "
- "fileid %04x, IMSI %s",
- errno, op->id, imsi);
-
- return FALSE;
- }
-
- len = TFR(read(fd, fileinfo, SIM_CACHE_HEADER_SIZE));
-
- if (len != SIM_CACHE_HEADER_SIZE)
- goto cleanup;
-
- error_type = fileinfo[0];
- file_length = (fileinfo[1] << 8) | fileinfo[2];
- structure = fileinfo[3];
- record_length = (fileinfo[4] << 8) | fileinfo[5];
-
- if (op->num_bytes > 0) {
- op->length = file_length;
- ret = TRUE;
- goto cleanup;
- }
-
- if (structure == OFONO_SIM_FILE_STRUCTURE_TRANSPARENT)
- record_length = file_length;
-
- if (record_length == 0 || file_length < record_length)
- goto cleanup;
-
- if (error_type != OFONO_ERROR_TYPE_NO_ERROR ||
- structure != op->structure) {
- ret = TRUE;
- cb(0, 0, 0, 0, 0, op->userdata);
- goto cleanup;
- }
-
- buffer = g_try_malloc(file_length);
-
- if (buffer == NULL)
- goto cleanup;
-
- len = TFR(read(fd, buffer, file_length));
-
- if (len < (ssize_t)file_length)
- goto cleanup;
-
- for (record = 0; record < file_length / record_length; record++) {
- cb(1, file_length, record + 1, &buffer[record * record_length],
- record_length, op->userdata);
- }
-
- ret = TRUE;
-
-cleanup:
- if (buffer)
- g_free(buffer);
-
- TFR(close(fd));
-
- return ret;
-}
-
-static void sim_op_read_block_cb(const struct ofono_error *error,
- const unsigned char *data, int len, void *user)
-{
- struct ofono_sim *sim = user;
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
- char *imsi = sim->imsi;
- int start_block, end_block;
- int start, length;
- unsigned char *buf;
-
- if ((error->type != OFONO_ERROR_TYPE_NO_ERROR) || (len == 0)) {
- sim_op_error(sim);
- return;
- }
-
- /* buffer this block */
- start_block = op->offset / 256;
- end_block = (op->offset + (op->num_bytes - 1)) / 256;
-
- if (op->current == start_block) {
- start = op->offset % 256;
- buf = op->buffer;
- } else {
- start = 0;
- buf = op->buffer + (op->current * 256);
- }
-
- length = op->num_bytes % 256;
-
- if ((length == 0) || (op->current != end_block))
- length = 256;
-
- memcpy(buf, &data[start], length);
-
- /* cache this block */
- if (op->cache && imsi) {
- char *path = g_strdup_printf(SIM_CACHE_PATH,
- sim->imsi, sim->phase, op->id);
- op->cache = cache_record(path, op->current + 1, 256, data,
- length, op->structure);
-
- g_free(path);
- }
-
- op->current++;
-
- sim->simop_source = g_timeout_add(0, sim_op_read_block, sim);
-}
-
-static gboolean sim_op_check_cached_block(struct ofono_sim *sim)
-{
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
- char *path;
- int fd;
- char *imsi = sim->imsi;
- int start_block, end_block;
- int start, length, len;
- unsigned char *buf;
- int bit, byte;
- guint8 cache;
- gboolean ret;
-
- if (!imsi)
- return FALSE;
-
- path = g_strdup_printf(SIM_CACHE_PATH, sim->imsi, sim->phase, op->id);
-
- if (path == NULL)
- return FALSE;
-
- fd = TFR(open(path, O_RDONLY));
- g_free(path);
-
- if (fd == -1) {
- if (errno != ENOENT)
- DBG("Error %i opening cache file for "
- "fileid %04x, IMSI %s",
- errno, op->id, imsi);
-
- return FALSE;
- }
-
- /* read cache header to see if current block is present */
- byte = op->current / 8;
- bit = op->current % 8;
-
- lseek(fd, SIM_FILE_INFO_SIZE + byte, SEEK_SET);
-
- len = TFR(read(fd, &cache, 1));
-
- if ((len != 1) || ((cache & (1 << bit)) == FALSE)) {
- ret = FALSE;
- goto cleanup;
- }
-
- /* figure out where we should start reading from */
- start_block = op->offset / 256;
- end_block = (op->offset + (op->num_bytes - 1)) / 256;
-
- if (op->current == start_block) {
- start = op->offset % 256;
- buf = op->buffer;
- } else {
- start = 0;
- buf = op->buffer + (op->current * 256);
- }
-
- length = op->num_bytes % 256;
-
- if ((length == 0) || (op->current != end_block))
- length = 256;
-
- /* lseek to the right place in the file */
- TFR(lseek(fd, start + SIM_CACHE_HEADER_SIZE, SEEK_SET));
-
- len = TFR(read(fd, buf, length));
-
- if (len != length) {
- ret = FALSE;
- goto cleanup;
- }
-
- ret = TRUE;
-
- op->current++;
-
- sim->simop_source = g_timeout_add(0, sim_op_read_block, sim);
-
-cleanup:
- TFR(close(fd));
-
- return ret;
-}
-
-static gboolean sim_op_read_block(gpointer user_data)
-{
- struct ofono_sim *sim = user_data;
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
- int end_block;
- ofono_sim_file_read_cb_t cb = op->cb;
- int read_bytes;
-
- end_block = (op->offset + (op->num_bytes - 1)) / 256;
-
- if (op->current > end_block) {
- cb(1, op->num_bytes, op->current, op->buffer,
- op->record_length, op->userdata);
-
- op = g_queue_pop_head(sim->simop_q);
-
- g_free(op->buffer);
-
- sim_file_op_free(op);
-
- if (g_queue_get_length(sim->simop_q) > 0)
- sim->simop_source = g_timeout_add(0, sim_op_next, sim);
-
- return FALSE;
- }
-
- /* see if this block is cached */
- if (sim_op_check_cached_block(sim) == TRUE)
- return FALSE;
-
- if (op->length < ((op->current + 1) * 256))
- read_bytes = op->length % 256;
- else
- read_bytes = 256;
-
- sim->driver->read_file_transparent(sim, op->id,
- op->current * 256,
- read_bytes,
- sim_op_read_block_cb, sim);
- return FALSE;
-}
-
-static void sim_op_get_blocks(struct ofono_sim *sim)
-{
- struct sim_file_op *op = g_queue_peek_head(sim->simop_q);
-
- /* allocate space to buffer the data till we've collected it all */
- op->buffer = g_try_malloc0(op->num_bytes);
-
- /* initialize current */
- op->current = op->offset / 256;
-
- /* need to get the length of the file */
- if (sim_op_check_cached(sim) == FALSE)
- sim->driver->read_file_info(sim, op->id, sim_op_info_cb, sim);
- else
- sim->simop_source = g_timeout_add(0, sim_op_read_block, sim);
-}
-
-static gboolean sim_op_next(gpointer user_data)
-{
- struct ofono_sim *sim = user_data;
- struct sim_file_op *op;
-
- sim->simop_source = 0;
-
- if (!sim->simop_q)
- return FALSE;
-
- op = g_queue_peek_head(sim->simop_q);
-
- if (op->num_bytes > 0) {
- sim_op_get_blocks(sim);
- return FALSE;
- }
-
- if (op->is_read == TRUE) {
- if (sim_op_check_cached(sim)) {
- op = g_queue_pop_head(sim->simop_q);
-
- sim_file_op_free(op);
-
- if (g_queue_get_length(sim->simop_q) > 0)
- sim->simop_source =
- g_timeout_add(0, sim_op_next, sim);
-
- return FALSE;
- }
-
- sim->driver->read_file_info(sim, op->id, sim_op_info_cb, sim);
- } else {
- switch (op->structure) {
- case OFONO_SIM_FILE_STRUCTURE_TRANSPARENT:
- sim->driver->write_file_transparent(sim, op->id, 0,
- op->length, op->buffer,
- sim_op_write_cb, sim);
- break;
- case OFONO_SIM_FILE_STRUCTURE_FIXED:
- sim->driver->write_file_linear(sim, op->id, op->current,
- op->length, op->buffer,
- sim_op_write_cb, sim);
- break;
- case OFONO_SIM_FILE_STRUCTURE_CYCLIC:
- sim->driver->write_file_cyclic(sim, op->id,
- op->length, op->buffer,
- sim_op_write_cb, sim);
- break;
- default:
- ofono_error("Unrecognized file structure, "
- "this can't happen");
- }
-
- g_free(op->buffer);
- }
-
- return FALSE;
-}
-
-static int sim_read_common(struct ofono_sim *sim, int id,
- enum ofono_sim_file_structure expected_type,
- unsigned short offset, int num_bytes,
- ofono_sim_file_read_cb_t cb, void *data)
+int ofono_sim_read_bytes(struct ofono_sim *sim, int id,
+ unsigned short offset, unsigned short num_bytes,
+ ofono_sim_file_read_cb_t cb, void *data)
{
- struct sim_file_op *op;
-
- if (!cb)
- return -1;
-
if (sim == NULL)
return -1;
- if (!sim->driver)
- return -1;
-
- if (!sim->driver->read_file_info)
+ if (num_bytes == 0)
return -1;
- /* TODO: We must first check the EFust table to see whether
- * this file can be read at all
- */
-
- if (!sim->simop_q)
- sim->simop_q = g_queue_new();
-
- op = g_new0(struct sim_file_op, 1);
-
- op->id = id;
- op->structure = expected_type;
- op->cb = cb;
- op->userdata = data;
- op->is_read = TRUE;
- op->offset = offset;
- op->num_bytes = num_bytes;
-
- g_queue_push_tail(sim->simop_q, op);
-
- if (g_queue_get_length(sim->simop_q) == 1)
- sim->simop_source = g_timeout_add(0, sim_op_next, sim);
-
- return 0;
-}
-
-int ofono_sim_read_bytes(struct ofono_sim *sim, int id,
- unsigned short offset, int num_bytes,
- ofono_sim_file_read_cb_t cb, void *data)
-{
- return sim_read_common(sim, id, OFONO_SIM_FILE_STRUCTURE_TRANSPARENT,
+ return sim_fs_read(sim->simfs, id, OFONO_SIM_FILE_STRUCTURE_TRANSPARENT,
offset, num_bytes, cb, data);
}
enum ofono_sim_file_structure expected_type,
ofono_sim_file_read_cb_t cb, void *data)
{
- return sim_read_common(sim, id, expected_type, 0, -1, cb, data);
+ if (sim == NULL)
+ return -1;
+
+ return sim_fs_read(sim->simfs, id, expected_type, 0, 0, cb, data);
}
int ofono_sim_write(struct ofono_sim *sim, int id,
enum ofono_sim_file_structure structure, int record,
const unsigned char *data, int length, void *userdata)
{
- struct sim_file_op *op;
- gconstpointer fn = NULL;
-
- if (!cb)
- return -1;
-
if (sim == NULL)
return -1;
- if (!sim->driver)
- return -1;
-
- switch (structure) {
- case OFONO_SIM_FILE_STRUCTURE_TRANSPARENT:
- fn = sim->driver->write_file_transparent;
- break;
- case OFONO_SIM_FILE_STRUCTURE_FIXED:
- fn = sim->driver->write_file_linear;
- break;
- case OFONO_SIM_FILE_STRUCTURE_CYCLIC:
- fn = sim->driver->write_file_cyclic;
- break;
- default:
- ofono_error("Unrecognized file structure, this can't happen");
- }
-
- if (fn == NULL)
- return -1;
-
- if (!sim->simop_q)
- sim->simop_q = g_queue_new();
-
- op = g_new0(struct sim_file_op, 1);
-
- op->id = id;
- op->cb = cb;
- op->userdata = userdata;
- op->is_read = FALSE;
- op->buffer = g_memdup(data, length);
- op->structure = structure;
- op->length = length;
- op->current = record;
-
- g_queue_push_tail(sim->simop_q, op);
-
- if (g_queue_get_length(sim->simop_q) == 1)
- sim->simop_source = g_timeout_add(0, sim_op_next, sim);
-
- return 0;
+ return sim_fs_write(sim->simfs, id, cb, structure, record, data, length,
+ userdata);
}
const char *ofono_sim_get_imsi(struct ofono_sim *sim)
static void sim_free_state(struct ofono_sim *sim)
{
- if (sim->simop_source) {
- g_source_remove(sim->simop_source);
- sim->simop_source = 0;
- }
-
- if (sim->simop_q) {
- /* Note: users of ofono_sim_read/write must not assume that
- * the callback happens for operations still in progress. */
- g_queue_foreach(sim->simop_q, (GFunc)sim_file_op_free, NULL);
- g_queue_free(sim->simop_q);
- sim->simop_q = NULL;
+ if (sim->simfs) {
+ sim_fs_free(sim->simfs);
+ sim->simfs = NULL;
}
if (sim->iccid) {
ofono_modem_add_interface(modem, OFONO_SIM_MANAGER_INTERFACE);
sim->state_watches = __ofono_watchlist_new(g_free);
+ sim->simfs = sim_fs_new(sim, sim->driver);
__ofono_atom_register(sim->atom, sim_unregister);
--- /dev/null
+/*
+ *
+ * oFono - Open Source Telephony
+ *
+ * Copyright (C) 2008-2010 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define _GNU_SOURCE
+#include <string.h>
+#include <stdio.h>
+
+#include <glib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "ofono.h"
+
+#include "simfs.h"
+#include "simutil.h"
+#include "storage.h"
+
+#define SIM_CACHE_MODE 0600
+#define SIM_CACHE_PATH STORAGEDIR "/%s-%i/%04x"
+#define SIM_CACHE_PATH_LEN(imsilen) (strlen(SIM_CACHE_PATH) - 3 + imsilen)
+#define SIM_CACHE_HEADER_SIZE 38
+#define SIM_FILE_INFO_SIZE 6
+
+static gboolean sim_fs_op_next(gpointer user_data);
+static gboolean sim_fs_op_read_record(gpointer user);
+static gboolean sim_fs_op_read_block(gpointer user_data);
+
+struct sim_fs_op {
+ int id;
+ enum ofono_sim_file_structure structure;
+ unsigned short offset;
+ int num_bytes;
+ int length;
+ int record_length;
+ int current;
+ gconstpointer cb;
+ gboolean is_read;
+ void *userdata;
+};
+
+static void sim_fs_op_free(struct sim_fs_op *node)
+{
+ g_free(node);
+}
+
+struct sim_fs {
+ GQueue *op_q;
+ gint op_source;
+ unsigned char bitmap[32];
+ int fd;
+ unsigned char *buffer;
+ struct ofono_sim *sim;
+ const struct ofono_sim_driver *driver;
+};
+
+void sim_fs_free(struct sim_fs *fs)
+{
+ if (fs->op_source) {
+ g_source_remove(fs->op_source);
+ fs->op_source = 0;
+ }
+
+ /*
+ * Note: users of sim_fs must not assume that the callback happens
+ * for operations still in progress
+ */
+ g_queue_foreach(fs->op_q, (GFunc)sim_fs_op_free, NULL);
+ g_queue_free(fs->op_q);
+
+ g_free(fs);
+}
+
+struct sim_fs *sim_fs_new(struct ofono_sim *sim,
+ const struct ofono_sim_driver *driver)
+{
+ struct sim_fs *fs;
+
+ fs = g_try_new0(struct sim_fs, 1);
+ if (fs == NULL)
+ return NULL;
+
+ fs->sim = sim;
+ fs->driver = driver;
+ fs->fd = -1;
+
+ return fs;
+}
+
+static void sim_fs_end_current(struct sim_fs *fs)
+{
+ struct sim_fs_op *op = g_queue_pop_head(fs->op_q);
+
+ if (g_queue_get_length(fs->op_q) > 0)
+ fs->op_source = g_idle_add(sim_fs_op_next, fs);
+
+ if (fs->fd != -1) {
+ TFR(close(fs->fd));
+ fs->fd = -1;
+ }
+
+ g_free(fs->buffer);
+ fs->buffer = NULL;
+
+ memset(fs->bitmap, 0, sizeof(fs->bitmap));
+
+ sim_fs_op_free(op);
+}
+
+static void sim_fs_op_error(struct sim_fs *fs)
+{
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+
+ if (op->is_read == TRUE)
+ ((ofono_sim_file_read_cb_t) op->cb)
+ (0, 0, 0, 0, 0, op->userdata);
+ else
+ ((ofono_sim_file_write_cb_t) op->cb)
+ (0, op->userdata);
+
+ sim_fs_end_current(fs);
+}
+
+static gboolean cache_block(struct sim_fs *fs, int block, int block_len,
+ const unsigned char *data, int num_bytes)
+{
+ int offset;
+ int bit;
+ ssize_t r;
+ unsigned char b;
+
+ if (fs->fd == -1)
+ return FALSE;
+
+ if (lseek(fs->fd, block * block_len +
+ SIM_CACHE_HEADER_SIZE, SEEK_SET) == (off_t) -1)
+ return FALSE;
+
+ r = TFR(write(fs->fd, data, num_bytes));
+
+ if (r != num_bytes)
+ return FALSE;
+
+ /* update present bit for this block */
+ offset = block / 8;
+ bit = block % 8;
+
+ /* lseek to correct byte (skip file info) */
+ lseek(fs->fd, offset + SIM_FILE_INFO_SIZE, SEEK_SET);
+
+ b = fs->bitmap[offset];
+ b |= 1 << bit;
+
+ r = TFR(write(fs->fd, &b, sizeof(b)));
+
+ if (r != sizeof(b))
+ return FALSE;
+
+ fs->bitmap[offset] = b;
+
+ return TRUE;
+}
+
+static void sim_fs_op_write_cb(const struct ofono_error *error, void *data)
+{
+ struct sim_fs *fs = data;
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+ ofono_sim_file_write_cb_t cb = op->cb;
+
+ if (error->type == OFONO_ERROR_TYPE_NO_ERROR)
+ cb(1, op->userdata);
+ else
+ cb(0, op->userdata);
+
+ sim_fs_end_current(fs);
+}
+
+static void sim_fs_op_read_block_cb(const struct ofono_error *error,
+ const unsigned char *data, int len,
+ void *user)
+{
+ struct sim_fs *fs = user;
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+ int start_block;
+ int end_block;
+ int bufoff;
+ int dataoff;
+ int tocopy;
+
+ if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
+ sim_fs_op_error(fs);
+ return;
+ }
+
+ start_block = op->offset / 256;
+ end_block = (op->offset + (op->num_bytes - 1)) / 256;
+
+ if (op->current == start_block) {
+ bufoff = 0;
+ dataoff = op->offset % 256;
+ tocopy = MIN(256 - op->offset % 256, len);
+ } else {
+ bufoff = (op->current - start_block - 1) * 256 +
+ op->offset % 256;
+ dataoff = 0;
+ tocopy = len;
+ }
+
+ memcpy(fs->buffer + bufoff, data + dataoff, tocopy);
+ cache_block(fs, op->current, 256, data, len);
+
+ op->current++;
+
+ if (op->current > end_block) {
+ ofono_sim_file_read_cb_t cb = op->cb;
+
+ cb(1, op->num_bytes, 0, fs->buffer,
+ op->record_length, op->userdata);
+
+ sim_fs_end_current(fs);
+ } else {
+ fs->op_source = g_idle_add(sim_fs_op_read_block, fs);
+ }
+}
+
+static gboolean sim_fs_op_read_block(gpointer user_data)
+{
+ struct sim_fs *fs = user_data;
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+ int start_block;
+ int end_block;
+ unsigned short read_bytes;
+
+ start_block = op->offset / 256;
+ end_block = (op->offset + (op->num_bytes - 1)) / 256;
+
+ if (op->current == start_block) {
+ fs->buffer = g_try_new0(unsigned char, op->num_bytes);
+
+ if (fs->buffer == NULL) {
+ sim_fs_op_error(fs);
+ return FALSE;
+ }
+ }
+
+ while (fs->fd != -1 && op->current <= end_block) {
+ int offset = op->current / 8;
+ int bit = 1 << op->current % 8;
+ int bufoff;
+ int seekoff;
+ int toread;
+
+ if ((fs->bitmap[offset] & bit) == 0)
+ break;
+
+ if (op->current == start_block) {
+ bufoff = 0;
+ seekoff = SIM_CACHE_HEADER_SIZE + op->current * 256 +
+ op->offset % 256;
+ toread = MIN(256 - op->offset % 256,
+ op->length - op->current * 256);
+ } else {
+ bufoff = (op->current - start_block - 1) * 256 +
+ op->offset % 256;
+ seekoff = SIM_CACHE_HEADER_SIZE + op->current * 256;
+ toread = MIN(256, op->length - op->current * 256);
+ }
+
+ if (lseek(fs->fd, seekoff, SEEK_SET) == (off_t) -1)
+ break;
+
+ if (TFR(read(fs->fd, fs->buffer + bufoff, toread)) != toread)
+ break;
+
+ op->current += 1;
+ }
+
+ if (op->current > end_block) {
+ ofono_sim_file_read_cb_t cb = op->cb;
+
+ cb(1, op->num_bytes, 0, fs->buffer,
+ op->record_length, op->userdata);
+
+ sim_fs_end_current(fs);
+
+ return FALSE;
+ }
+
+ if (fs->driver->read_file_transparent == NULL) {
+ sim_fs_op_error(fs);
+ return FALSE;
+ }
+
+ read_bytes = MIN(op->length - op->current * 256, 256);
+ fs->driver->read_file_transparent(fs->sim, op->id,
+ op->current * 256,
+ read_bytes,
+ sim_fs_op_read_block_cb, fs);
+
+ return FALSE;
+}
+
+static void sim_fs_op_retrieve_cb(const struct ofono_error *error,
+ const unsigned char *data, int len,
+ void *user)
+{
+ struct sim_fs *fs = user;
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+ int total = op->length / op->record_length;
+ ofono_sim_file_read_cb_t cb = op->cb;
+
+ if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
+ sim_fs_op_error(fs);
+ return;
+ }
+
+ cb(1, op->length, op->current, data, op->record_length, op->userdata);
+
+ cache_block(fs, op->current - 1, op->record_length,
+ data, op->record_length);
+
+ if (op->current < total) {
+ op->current += 1;
+ fs->op_source = g_idle_add(sim_fs_op_read_record, fs);
+ } else {
+ sim_fs_end_current(fs);
+ }
+}
+
+static gboolean sim_fs_op_read_record(gpointer user)
+{
+ struct sim_fs *fs = user;
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+ const struct ofono_sim_driver *driver = fs->driver;
+ int total = op->length / op->record_length;
+ unsigned char buf[256];
+
+ fs->op_source = 0;
+
+ while (fs->fd != -1 && op->current <= total) {
+ int offset = (op->current - 1) / 8;
+ int bit = 1 << ((op->current - 1) % 8);
+ ofono_sim_file_read_cb_t cb = op->cb;
+
+ if ((fs->bitmap[offset] & bit) == 0)
+ break;
+
+ if (lseek(fs->fd, (op->current - 1) * op->record_length +
+ SIM_CACHE_HEADER_SIZE, SEEK_SET) == (off_t) -1)
+ break;
+
+ if (TFR(read(fs->fd, buf, op->record_length)) !=
+ op->record_length)
+ break;
+
+ cb(1, op->length, op->current,
+ buf, op->record_length, op->userdata);
+
+ op->current += 1;
+ }
+
+ if (op->current > total) {
+ sim_fs_end_current(fs);
+
+ return FALSE;
+ }
+
+ switch (op->structure) {
+ case OFONO_SIM_FILE_STRUCTURE_FIXED:
+ if (!driver->read_file_linear) {
+ sim_fs_op_error(fs);
+ return FALSE;
+ }
+
+ driver->read_file_linear(fs->sim, op->id, op->current,
+ op->record_length,
+ sim_fs_op_retrieve_cb, fs);
+ break;
+ case OFONO_SIM_FILE_STRUCTURE_CYCLIC:
+ if (!driver->read_file_cyclic) {
+ sim_fs_op_error(fs);
+ return FALSE;
+ }
+
+ driver->read_file_cyclic(fs->sim, op->id, op->current,
+ op->record_length,
+ sim_fs_op_retrieve_cb, fs);
+ break;
+ default:
+ ofono_error("Unrecognized file structure, this can't happen");
+ }
+
+ return FALSE;
+}
+
+static void sim_fs_op_info_cb(const struct ofono_error *error, int length,
+ enum ofono_sim_file_structure structure,
+ int record_length,
+ const unsigned char access[3], void *data)
+{
+ struct sim_fs *fs = data;
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+ const char *imsi = ofono_sim_get_imsi(fs->sim);
+ enum ofono_sim_phase phase = ofono_sim_get_phase(fs->sim);
+ enum sim_file_access update;
+ enum sim_file_access invalidate;
+ enum sim_file_access rehabilitate;
+ unsigned char fileinfo[SIM_CACHE_HEADER_SIZE];
+ gboolean cache;
+ char *path;
+
+ if (error->type != OFONO_ERROR_TYPE_NO_ERROR) {
+ sim_fs_op_error(fs);
+ return;
+ }
+
+ if (structure != op->structure) {
+ ofono_error("Requested file structure differs from SIM: %x",
+ op->id);
+ sim_fs_op_error(fs);
+ return;
+ }
+
+ /* TS 11.11, Section 9.3 */
+ update = file_access_condition_decode(access[0] & 0xf);
+ rehabilitate = file_access_condition_decode((access[2] >> 4) & 0xf);
+ invalidate = file_access_condition_decode(access[2] & 0xf);
+
+ op->structure = structure;
+ op->length = length;
+
+ /* Never cache card holder writable files */
+ cache = (update == SIM_FILE_ACCESS_ADM ||
+ update == SIM_FILE_ACCESS_NEVER) &&
+ (invalidate == SIM_FILE_ACCESS_ADM ||
+ invalidate == SIM_FILE_ACCESS_NEVER) &&
+ (rehabilitate == SIM_FILE_ACCESS_ADM ||
+ rehabilitate == SIM_FILE_ACCESS_NEVER);
+
+ if (structure == OFONO_SIM_FILE_STRUCTURE_TRANSPARENT) {
+ if (op->num_bytes == 0)
+ op->num_bytes = op->length;
+
+ op->record_length = length;
+ op->current = op->offset / 256;
+ fs->op_source = g_idle_add(sim_fs_op_read_block, fs);
+ } else {
+ op->record_length = record_length;
+ op->current = 1;
+ fs->op_source = g_idle_add(sim_fs_op_read_record, fs);
+ }
+
+ if (imsi == NULL || cache == FALSE)
+ return;
+
+ memset(fileinfo, 0, SIM_CACHE_HEADER_SIZE);
+
+ fileinfo[0] = error->type;
+ fileinfo[1] = length >> 8;
+ fileinfo[2] = length & 0xff;
+ fileinfo[3] = structure;
+ fileinfo[4] = record_length >> 8;
+ fileinfo[5] = record_length & 0xff;
+
+ path = g_strdup_printf(SIM_CACHE_PATH, imsi, phase, op->id);
+ if (create_dirs(path, SIM_CACHE_MODE | S_IXUSR) != 0)
+ goto out;
+
+ fs->fd = TFR(open(path, O_RDWR | O_CREAT | O_TRUNC, SIM_CACHE_MODE));
+
+ if (fs->fd == -1)
+ goto out;
+
+ if (TFR(write(fs->fd, fileinfo, SIM_CACHE_HEADER_SIZE)) !=
+ SIM_CACHE_HEADER_SIZE) {
+ TFR(close(fs->fd));
+ fs->fd = -1;
+ }
+
+out:
+ g_free(path);
+}
+
+static gboolean sim_fs_op_check_cached(struct sim_fs *fs)
+{
+ const char *imsi = ofono_sim_get_imsi(fs->sim);
+ enum ofono_sim_phase phase = ofono_sim_get_phase(fs->sim);
+ struct sim_fs_op *op = g_queue_peek_head(fs->op_q);
+ gboolean ret = FALSE;
+ char *path;
+ int fd;
+ ssize_t len;
+ unsigned char fileinfo[SIM_CACHE_HEADER_SIZE];
+ int error_type;
+ int file_length;
+ enum ofono_sim_file_structure structure;
+ int record_length;
+
+ if (!imsi)
+ return FALSE;
+
+ path = g_strdup_printf(SIM_CACHE_PATH, imsi, phase, op->id);
+
+ if (path == NULL)
+ return FALSE;
+
+ fd = TFR(open(path, O_RDWR));
+ g_free(path);
+
+ if (fd == -1) {
+ if (errno != ENOENT)
+ DBG("Error %i opening cache file for "
+ "fileid %04x, IMSI %s",
+ errno, op->id, imsi);
+
+ return FALSE;
+ }
+
+ len = TFR(read(fd, fileinfo, SIM_CACHE_HEADER_SIZE));
+
+ if (len != SIM_CACHE_HEADER_SIZE)
+ goto error;
+
+ error_type = fileinfo[0];
+ file_length = (fileinfo[1] << 8) | fileinfo[2];
+ structure = fileinfo[3];
+ record_length = (fileinfo[4] << 8) | fileinfo[5];
+
+ if (structure == OFONO_SIM_FILE_STRUCTURE_TRANSPARENT)
+ record_length = file_length;
+
+ if (record_length == 0 || file_length < record_length)
+ goto error;
+
+ op->length = file_length;
+ op->record_length = record_length;
+ memcpy(fs->bitmap, fileinfo + SIM_FILE_INFO_SIZE,
+ SIM_CACHE_HEADER_SIZE - SIM_FILE_INFO_SIZE);
+ fs->fd = fd;
+
+ if (error_type != OFONO_ERROR_TYPE_NO_ERROR ||
+ structure != op->structure)
+ sim_fs_op_error(fs);
+
+ if (structure == OFONO_SIM_FILE_STRUCTURE_TRANSPARENT) {
+ if (op->num_bytes == 0)
+ op->num_bytes = op->length;
+
+ op->current = op->offset / 256;
+ fs->op_source = g_idle_add(sim_fs_op_read_block, fs);
+ } else {
+ op->current = 1;
+ fs->op_source = g_idle_add(sim_fs_op_read_record, fs);
+ }
+
+ return TRUE;
+
+error:
+ TFR(close(fd));
+ return ret;
+}
+
+static gboolean sim_fs_op_next(gpointer user_data)
+{
+ struct sim_fs *fs = user_data;
+ const struct ofono_sim_driver *driver = fs->driver;
+ struct sim_fs_op *op;
+
+ fs->op_source = 0;
+
+ if (!fs->op_q)
+ return FALSE;
+
+ op = g_queue_peek_head(fs->op_q);
+
+ if (op->is_read == TRUE) {
+ if (sim_fs_op_check_cached(fs))
+ return FALSE;
+
+ driver->read_file_info(fs->sim, op->id, sim_fs_op_info_cb, fs);
+ } else {
+ switch (op->structure) {
+ case OFONO_SIM_FILE_STRUCTURE_TRANSPARENT:
+ driver->write_file_transparent(fs->sim, op->id, 0,
+ op->length, fs->buffer,
+ sim_fs_op_write_cb, fs);
+ break;
+ case OFONO_SIM_FILE_STRUCTURE_FIXED:
+ driver->write_file_linear(fs->sim, op->id, op->current,
+ op->length, fs->buffer,
+ sim_fs_op_write_cb, fs);
+ break;
+ case OFONO_SIM_FILE_STRUCTURE_CYCLIC:
+ driver->write_file_cyclic(fs->sim, op->id,
+ op->length, fs->buffer,
+ sim_fs_op_write_cb, fs);
+ break;
+ default:
+ ofono_error("Unrecognized file structure, "
+ "this can't happen");
+ }
+
+ g_free(fs->buffer);
+ fs->buffer = NULL;
+ }
+
+ return FALSE;
+}
+
+int sim_fs_read(struct sim_fs *fs, int id,
+ enum ofono_sim_file_structure expected_type,
+ unsigned short offset, unsigned short num_bytes,
+ ofono_sim_file_read_cb_t cb, void *data)
+{
+ struct sim_fs_op *op;
+
+ if (!cb)
+ return -1;
+
+ if (!fs->driver)
+ return -1;
+
+ if (!fs->driver->read_file_info)
+ return -1;
+
+ if (!fs->op_q)
+ fs->op_q = g_queue_new();
+
+ op = g_new0(struct sim_fs_op, 1);
+
+ op->id = id;
+ op->structure = expected_type;
+ op->cb = cb;
+ op->userdata = data;
+ op->is_read = TRUE;
+ op->offset = offset;
+ op->num_bytes = num_bytes;
+
+ g_queue_push_tail(fs->op_q, op);
+
+ if (g_queue_get_length(fs->op_q) == 1)
+ fs->op_source = g_idle_add(sim_fs_op_next, fs);
+
+ return 0;
+}
+
+int sim_fs_write(struct sim_fs *fs, int id, ofono_sim_file_write_cb_t cb,
+ enum ofono_sim_file_structure structure, int record,
+ const unsigned char *data, int length, void *userdata)
+{
+ struct sim_fs_op *op;
+ gconstpointer fn = NULL;
+
+ if (!cb)
+ return -1;
+
+ if (!fs->driver)
+ return -1;
+
+ switch (structure) {
+ case OFONO_SIM_FILE_STRUCTURE_TRANSPARENT:
+ fn = fs->driver->write_file_transparent;
+ break;
+ case OFONO_SIM_FILE_STRUCTURE_FIXED:
+ fn = fs->driver->write_file_linear;
+ break;
+ case OFONO_SIM_FILE_STRUCTURE_CYCLIC:
+ fn = fs->driver->write_file_cyclic;
+ break;
+ default:
+ ofono_error("Unrecognized file structure, this can't happen");
+ }
+
+ if (fn == NULL)
+ return -1;
+
+ if (!fs->op_q)
+ fs->op_q = g_queue_new();
+
+ op = g_new0(struct sim_fs_op, 1);
+
+ op->id = id;
+ op->cb = cb;
+ op->userdata = userdata;
+ op->is_read = FALSE;
+ fs->buffer = g_memdup(data, length);
+ op->structure = structure;
+ op->length = length;
+ op->current = record;
+
+ g_queue_push_tail(fs->op_q, op);
+
+ if (g_queue_get_length(fs->op_q) == 1)
+ fs->op_source = g_idle_add(sim_fs_op_next, fs);
+
+ return 0;
+}
projects / platform / upstream / ofono.git / commitdiff