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ofono
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Hack for reading EFSPN on isimodem sim driver 

In the absence of low-level access to the SIM card, we're adding this
hack to expose the SPN using ISI's high-level access instead.
This commit is contained in:
Jukka Saunamaki 2009-09-18 09:43:34 +03:00 committed by Aki Niemi
parent 60118757b2
commit 74c15989c9
2 changed files with 100 additions and 7 deletions
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1
AUTHORS
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@ -10,3 +10,4 @@ Santtu Lakkala <inz@inz.fi>
Andres Salomon <dilinger@collabora.co.uk>
Alexander Kanavin <alexander.kanavin@nokia.com>
Ismo Puustinen <ismo.h.puustinen@nokia.com>
Jukka Saunamäki <jukka.saunamaki@nokia.com>

106
drivers/isimodem/sim.c
View File

@ -40,28 +40,30 @@
#include <ofono/sim.h>
#include "isi.h"
#include "simutil.h"
#define PN_SIM 0x09
#define SIM_TIMEOUT 5
#define SIM_MAX_IMSI_LENGTH 15
enum return_code {
SIM_SERV_OK = 0x01
SIM_SERV_OK = 0x01,
};
enum message_id {
SIM_IMSI_REQ_READ_IMSI = 0x1D,
SIM_IMSI_RESP_READ_IMSI = 0x1E,
COMMON_MESSAGE = 0xF0
SIM_IMSI_REQ_READ_IMSI = 0x1D,
SIM_IMSI_RESP_READ_IMSI = 0x1E,
SIM_SERV_PROV_NAME_REQ = 0x21,
SIM_SERV_PROV_NAME_RESP = 0x22
};
enum service_type {
READ_IMSI = 0x2D
enum service_types {
SIM_ST_READ_SERV_PROV_NAME = 0x2C,
READ_IMSI = 0x2D,
};
struct sim_data {
GIsiClient *client;
struct isi_version version;
};
static void sim_debug(const void *restrict buf, size_t len, void *data)
@ -70,17 +72,107 @@ static void sim_debug(const void *restrict buf, size_t len, void *data)
dump_msg(buf, len);
}
/* Returns fake (static) file info for EFSPN */
static gboolean efspn_file_info(gpointer user)
{
struct isi_cb_data *cbd = user;
ofono_sim_file_info_cb_t cb = cbd->cb;
unsigned char access[3] = { 0x0f, 0xff, 0xff };
DBG("Returning dummy file_info for EFSPN");
CALLBACK_WITH_SUCCESS(cb, 17, 0, 0, access, cbd->data);
g_free(cbd);
return FALSE;
}
static void isi_read_file_info(struct ofono_sim *sim, int fileid,
ofono_sim_file_info_cb_t cb, void *data)
{
if (fileid == SIM_EFSPN_FILEID) {
/* Fake response for EFSPN */
struct isi_cb_data *cbd = isi_cb_data_new(NULL, cb, data);
g_idle_add(efspn_file_info, cbd);
return;
}
DBG("Not implemented (fileid = %04x)",fileid);
CALLBACK_WITH_FAILURE(cb, -1, -1, -1, NULL, data);
}
static bool spn_resp_cb(GIsiClient * client, const void *restrict data,
size_t len, uint16_t object, void *opaque)
{
const unsigned char *msg = data;
struct isi_cb_data *cbd = opaque;
ofono_sim_read_cb_t cb = cbd->cb;
unsigned char spn[17] = { 0xff };
int i;
if (!msg) {
DBG("ISI client error: %d", g_isi_client_error(client));
goto error;
}
if (len < 39 || msg[0] != SIM_SERV_PROV_NAME_RESP)
goto error;
if (msg[1] != SIM_ST_READ_SERV_PROV_NAME || msg[2] != SIM_SERV_OK)
goto error;
/* Set display condition bits */
spn[0] = ((msg[38] & 1) << 1) + (msg[37] & 1);
/* Dirty conversion from 16bit unicode to ascii */
for (i = 0; i < 16; i++) {
unsigned char c = msg[3 + i * 2 + 1];
if (c == 0)
c = 0xff;
else if (!g_ascii_isprint(c))
c = '?';
spn[i + 1] = c;
}
DBG("SPN read successfully");
CALLBACK_WITH_SUCCESS(cb, spn, 17, cbd->data);
goto out;
error:
DBG("Error reading SPN");
CALLBACK_WITH_FAILURE(cb, NULL, 0, cbd->data);
out:
g_free(cbd);
return true;
}
static void isi_read_file_transparent(struct ofono_sim *sim, int fileid,
int start, int length,
ofono_sim_read_cb_t cb, void *data)
{
struct isi_cb_data *cbd = NULL;
if (fileid == SIM_EFSPN_FILEID) {
/* Hack support for EFSPN reading */
struct sim_data *simd = ofono_sim_get_data(sim);
const unsigned char msg[] = {
SIM_SERV_PROV_NAME_REQ,
SIM_ST_READ_SERV_PROV_NAME,
0
};
cbd = isi_cb_data_new(NULL, cb, data);
if (!simd)
goto error;
cbd->user = sim;
if (g_isi_request_make(simd->client, msg, sizeof(msg),
SIM_TIMEOUT, spn_resp_cb, cbd))
return;
}
error:
if (cbd)
g_free(cbd);
DBG("Not implemented (fileid = %04x)",fileid);
CALLBACK_WITH_FAILURE(cb, NULL, 0, data);
}