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- Moved functions from sc.c to ctx.c 

- Card and reader drivers are now configurable


git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@387 c6295689-39f2-0310-b995-f0e70906c6a9
This commit is contained in:
jey 2002-03-24 22:47:35 +00:00
parent ec6f8961b0
commit cd4e3650a4
5 changed files with 461 additions and 203 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

72
etc/opensc.conf.example
View File

@ -1,17 +1,77 @@
# Configuration file for OpenSC
# Example configuration file
# Default values for any application
# These can be overrided by the application
# specific configuration block.
# NOTE: All key-value pairs must be terminated by a semicolon.
# Default values for any application
# These can be overrided by an application
# specific configuration block.
app default {
# Amount of debug info to print
#
# A greater value means more debug info.
# Default: 0
#
debug = 0;
#debug_file = "/tmp/opensc-debug.log";
#error_file = "/tmp/opensc-errors.log";
# The file to which debug output will be written
#
# A special value of 'stdout' is recognized.
# Default: stdout
#
# debug_file = /tmp/opensc-debug.log;
# The file to which errors will be written
#
# A special value of 'stderr' is recognized.
# Default: stderr
#
# error_file = /tmp/opensc-errors.log;
# What reader drivers to load at start-up
#
# A special value of 'internal' will load all
# statically linked drivers. If an unknown (ie. not
# internal) driver is supplied, a separate configuration
# configuration block has to be written for the driver.
# Default: internal
#
# reader_drivers = pcsc, ctapi;
# What reader drivers to load at start-up
#
# A special value of 'internal' will load all
# statically linked drivers. If an unknown (ie. not
# internal) driver is supplied, a separate configuration
# configuration block has to be written for the driver.
# Default: internal
#
# card_drivers = internal, customcos;
# card_driver customcos {
# The location of the driver library
#
# module = /usr/lib/opensc/drivers/card_customcos.so
# }
# Below are the framework specific configuration blocks.
# PKCS #15
framework pkcs15 {
# Whether to use the cache files in the user's
# home directory.
# WARNING: This shouldn't be used in setuid root
# applications.
# Default: false
#
use_caching = true;
}
}
# For applications that use SCAM (pam_opensc, sia_opensc)
app scam {
use_cache = false;
framework pkcs15 {
use_caching = false;
}
}

5
src/libopensc/Makefile.am
View File

@ -17,8 +17,9 @@ INCLUDES = $(PCSC_FLAGS)
bin_SCRIPTS = opensc-config
lib_LTLIBRARIES = libopensc.la
libopensc_la_SOURCES = asn1.c base64.c sec.c log.c sc.c card.c iso7816.c \
dir.c pkcs15.c pkcs15-cert.c pkcs15-pin.c \
libopensc_la_SOURCES = sc.c ctx.c asn1.c base64.c sec.c log.c \
card.c iso7816.c dir.c \
pkcs15.c pkcs15-cert.c pkcs15-pin.c \
pkcs15-prkey.c pkcs15-pubkey.c pkcs15-sec.c \
pkcs15-cache.c $(PCSC_SRC) \
card-setcos.c card-miocos.c card-flex.c card-gpk.c \

390
src/libopensc/ctx.c Normal file
View File

@ -0,0 +1,390 @@
/*
* ctx.c: Context related functions
*
* Copyright (C) 2002 Juha Yrjölä <juha.yrjola@iki.fi>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "sc-internal.h"
#include "sc-log.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
int _sc_add_reader(struct sc_context *ctx, struct sc_reader *reader)
{
assert(reader != NULL);
reader->ctx = ctx;
if (ctx->reader_count == SC_MAX_READERS)
return SC_ERROR_TOO_MANY_OBJECTS;
ctx->reader[ctx->reader_count] = reader;
ctx->reader_count++;
return 0;
}
struct _sc_driver_entry {
char *name;
void *func;
char *libpath;
};
static const struct _sc_driver_entry internal_card_drivers[] = {
{ "setcos", sc_get_setcos_driver },
{ "miocos", sc_get_miocos_driver },
{ "flex", sc_get_flex_driver },
{ "tcos", sc_get_tcos_driver },
{ "emv", sc_get_emv_driver },
#ifdef HAVE_OPENSSL
{ "gpk", sc_get_gpk_driver },
#endif
/* The default driver should be last, as it handles all the
* unrecognized cards. */
{ "default", sc_get_default_driver },
{ NULL }
};
static const struct _sc_driver_entry internal_reader_drivers[] = {
#ifdef HAVE_LIBPCSCLITE
{ "pcsc", sc_get_pcsc_driver },
#endif
{ NULL }
};
struct _sc_ctx_options {
struct _sc_driver_entry rdrv[16];
int rcount;
struct _sc_driver_entry cdrv[16];
int ccount;
};
static void set_defaults(struct sc_context *ctx, struct _sc_ctx_options *opts)
{
ctx->debug = 0;
if (ctx->debug_file)
fclose(ctx->debug_file);
ctx->debug_file = NULL;
ctx->log_errors = 1;
ctx->error_file = stderr;
ctx->forced_driver = NULL;
}
static void del_drvs(struct _sc_ctx_options *opts, int type)
{
struct _sc_driver_entry *lst;
int *cp, i;
if (type == 0) {
lst = opts->rdrv;
cp = &opts->rcount;
} else {
lst = opts->cdrv;
cp = &opts->ccount;
}
for (i = 0; i < *cp; i++) {
free(lst[i].name);
if (lst[i].libpath)
free(lst[i].libpath);
}
*cp = 0;
}
static void add_drv(struct _sc_ctx_options *opts, int type, const char *name)
{
struct _sc_driver_entry *lst;
int *cp, i;
if (type == 0) {
lst = opts->rdrv;
cp = &opts->rcount;
} else {
lst = opts->cdrv;
cp = &opts->ccount;
}
if (*cp == 16) /* No space for more drivers... */
return;
for (i = 0; i < *cp; i++)
if (strcmp(name, lst[i].name) == 0)
return;
lst[*cp].name = strdup(name);
*cp = *cp + 1;
}
static void add_internal_drvs(struct _sc_ctx_options *opts, int type)
{
const struct _sc_driver_entry *lst;
int i;
if (type == 0)
lst = internal_reader_drivers;
else
lst = internal_card_drivers;
i = 0;
while (lst[i].name != NULL) {
add_drv(opts, type, lst[i].name);
i++;
}
}
static int load_parameters(struct sc_context *ctx, const char *app,
struct _sc_ctx_options *opts)
{
scconf_block **blocks = NULL;
int i, err = 0;
blocks = scconf_find_blocks(ctx->conf, NULL, "app");
for (i = 0; blocks[i]; i++) {
scconf_block *block = blocks[i];
const scconf_list *list;
const char *val;
const char *s_internal = "internal";
if (!block->name && strcmp(block->name->data, app))
continue;
val = scconf_find_value_first(block, "debug");
if (val)
sscanf(val, "%d", &ctx->debug);
val = scconf_find_value_first(block, "debug_file");
if (val) {
if (ctx->debug_file && ctx->debug_file != stdout)
fclose(ctx->debug_file);
if (strcmp(val, "stdout") == 0)
ctx->debug_file = fopen(val, "a");
else
ctx->debug_file = stdout;
}
val = scconf_find_value_first(block, "error_file");
if (val) {
if (ctx->error_file && ctx->error_file != stderr)
fclose(ctx->error_file);
if (strcmp(val, "stderr") != 0)
ctx->error_file = fopen(val, "a");
else
ctx->error_file = stderr;
}
list = scconf_find_value(block, "reader_drivers");
if (list == NULL) {
if (opts->rcount == 0) /* Add the internal drivers */
add_internal_drvs(opts, 0);
} else
del_drvs(opts, 0);
while (list != NULL) {
if (strcmp(list->data, s_internal) == 0)
add_internal_drvs(opts, 1);
else
add_drv(opts, 0, list->data);
list = list->next;
}
if (err)
break;
list = scconf_find_value(block, "card_drivers");
if (list == NULL) {
if (opts->ccount == 0) /* Add the internal drivers */
add_internal_drvs(opts, 1);
} else
del_drvs(opts, 1);
while (list != NULL) {
if (strcmp(list->data, s_internal) == 0)
add_internal_drvs(opts, 1);
else
add_drv(opts, 1, list->data);
list = list->next;
}
if (err)
break;
}
free(blocks);
return err;
}
static int load_reader_drivers(struct sc_context *ctx,
struct _sc_ctx_options *opts)
{
const struct _sc_driver_entry *ent;
int drv_count;
int i;
for (drv_count = 0; ctx->reader_drivers[drv_count] != NULL; drv_count++);
for (i = 0; i < opts->rcount; i++) {
const struct sc_reader_driver * (* func)(void) = NULL;
int j;
ent = &opts->rdrv[i];
for (j = 0; internal_reader_drivers[j].name != NULL; j++)
if (strcmp(ent->name, internal_reader_drivers[j].name) == 0) {
func = internal_reader_drivers[j].func;
break;
}
if (func == NULL) {
/* External driver */
/* FIXME: Load shared library */
error(ctx, "Unable to load '%s'. External drivers not supported yet.\n",
ent->name);
continue;
}
ctx->reader_drivers[drv_count] = func();
ctx->reader_drivers[drv_count]->ops->init(ctx, &ctx->reader_drv_data[i]);
drv_count++;
}
return 0;
}
static int load_card_drivers(struct sc_context *ctx,
struct _sc_ctx_options *opts)
{
const struct _sc_driver_entry *ent;
int drv_count;
int i;
for (drv_count = 0; ctx->card_drivers[drv_count] != NULL; drv_count++);
for (i = 0; i < opts->ccount; i++) {
const struct sc_card_driver * (* func)(void) = NULL;
int j;
ent = &opts->cdrv[i];
for (j = 0; internal_card_drivers[j].name != NULL; j++)
if (strcmp(ent->name, internal_card_drivers[j].name) == 0) {
func = internal_card_drivers[j].func;
break;
}
if (func == NULL) {
/* External driver */
/* FIXME: Load shared library */
error(ctx, "Unable to load '%s'. External drivers not supported yet.\n",
ent->name);
continue;
}
ctx->card_drivers[drv_count] = func();
drv_count++;
}
return 0;
}
int sc_establish_context(struct sc_context **ctx_out, const char *app_name)
{
const char *default_app = "default";
struct sc_context *ctx;
struct _sc_ctx_options opts;
int r;
assert(ctx_out != NULL);
ctx = malloc(sizeof(struct sc_context));
if (ctx == NULL)
return SC_ERROR_OUT_OF_MEMORY;
memset(ctx, 0, sizeof(struct sc_context));
memset(&opts, 0, sizeof(opts));
set_defaults(ctx, &opts);
ctx->app_name = app_name ? strdup(app_name) : strdup(default_app);
ctx->conf = scconf_init(OPENSC_CONF_PATH);
if (ctx->conf) {
r = scconf_parse(ctx->conf);
if (r < 1) {
scconf_deinit(ctx->conf);
ctx->conf = NULL;
} else {
load_parameters(ctx, default_app, &opts);
if (strcmp(default_app, ctx->app_name)) {
load_parameters(ctx, ctx->app_name, &opts);
}
}
}
#ifdef HAVE_PTHREAD
pthread_mutex_init(&ctx->mutex, NULL);
#endif
load_reader_drivers(ctx, &opts);
load_card_drivers(ctx, &opts);
*ctx_out = ctx;
return 0;
}
int sc_release_context(struct sc_context *ctx)
{
int i;
assert(ctx != NULL);
SC_FUNC_CALLED(ctx, 1);
for (i = 0; i < ctx->reader_count; i++) {
struct sc_reader *rdr = ctx->reader[i];
if (rdr->ops->release != NULL)
rdr->ops->release(rdr);
free(rdr->name);
free(rdr);
}
for (i = 0; ctx->reader_drivers[i] != NULL; i++) {
const struct sc_reader_driver *drv = ctx->reader_drivers[i];
if (drv->ops->finish != NULL)
drv->ops->finish(ctx->reader_drv_data[i]);
}
ctx->debug_file = ctx->error_file = NULL;
if (ctx->conf)
scconf_deinit(ctx->conf);
free(ctx->app_name);
free(ctx);
return 0;
}
int sc_set_card_driver(struct sc_context *ctx, const char *short_name)
{
int i = 0, match = 0;
#ifdef HAVE_PTHREAD
pthread_mutex_lock(&ctx->mutex);
#endif
if (short_name == NULL) {
ctx->forced_driver = NULL;
match = 1;
} else while (ctx->card_drivers[i] != NULL && i < SC_MAX_CARD_DRIVERS) {
const struct sc_card_driver *drv = ctx->card_drivers[i];
if (strcmp(short_name, drv->short_name) == 0) {
ctx->forced_driver = drv;
match = 1;
break;
}
i++;
}
#ifdef HAVE_PTHREAD
pthread_mutex_unlock(&ctx->mutex);
#endif
if (match == 0)
return SC_ERROR_OBJECT_NOT_FOUND; /* FIXME: invent error */
return 0;
}
int sc_get_cache_dir(struct sc_context *ctx, char *buf, size_t bufsize)
{
char *homedir;
const char *cache_dir = ".eid/cache";
homedir = getenv("HOME");
if (homedir == NULL)
return SC_ERROR_INTERNAL;
if (snprintf(buf, bufsize, "%s/%s", homedir, cache_dir) < 0)
return SC_ERROR_BUFFER_TOO_SMALL;
return 0;
}

4
src/libopensc/reader-pcsc.c
View File

@ -331,6 +331,8 @@ static int pcsc_init(struct sc_context *ctx, void **reader_data)
reader->driver = &pcsc_drv;
reader->slot_count = 1;
reader->name = strdup(p);
priv->pcsc_ctx = pcsc_ctx;
priv->reader_name = strdup(p);
r = _sc_add_reader(ctx, reader);
if (r) {
free(priv->reader_name);
@ -345,8 +347,6 @@ static int pcsc_init(struct sc_context *ctx, void **reader_data)
slot->atr_len = 0;
slot->drv_data = NULL;
priv->pcsc_ctx = pcsc_ctx;
priv->reader_name = strdup(p);
while (*p++ != 0);
} while (p < (reader_buf + reader_buf_size - 1));
free(reader_buf);

193
src/libopensc/sc.c
View File

@ -28,7 +28,6 @@
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>
#ifdef VERSION
const char *sc_version = VERSION;
@ -67,18 +66,6 @@ int sc_hex_to_bin(const char *in, u8 *out, size_t *outlen)
return err;
}
int _sc_add_reader(struct sc_context *ctx, struct sc_reader *reader)
{
assert(reader != NULL);
reader->ctx = ctx;
if (ctx->reader_count == SC_MAX_READERS)
return SC_ERROR_TOO_MANY_OBJECTS;
ctx->reader[ctx->reader_count] = reader;
ctx->reader_count++;
return 0;
}
struct sc_slot_info * _sc_get_slot_info(struct sc_reader *reader, int slot_id)
{
assert(reader != NULL);
@ -142,173 +129,6 @@ int sc_wait_for_card(struct sc_context *ctx, int reader, int timeout)
}
#endif
static void set_defaults(struct sc_context *ctx)
{
ctx->debug = 0;
if (ctx->debug_file)
fclose(ctx->debug_file);
ctx->debug_file = NULL;
ctx->log_errors = 1;
ctx->error_file = stderr;
}
static int load_parameters(struct sc_context *ctx, const char *app)
{
scconf_block **blocks = NULL;
const char *val;
unsigned int i;
blocks = scconf_find_blocks(ctx->conf, NULL, "app");
for (i = 0; blocks[i]; i++) {
scconf_block *block = blocks[i];
if (!block->name && strcmp(block->name->data, app))
continue;
val = scconf_find_value_first(block, "debug");
sscanf(val, "%d", &ctx->debug);
val = scconf_find_value_first(block, "debug_file");
if (ctx->debug_file)
fclose(ctx->debug_file);
if (strcmp(val, "stdout") == 0)
ctx->debug_file = fopen(val, "a");
val = scconf_find_value_first(block, "error_file");
if (ctx->error_file)
fclose(ctx->error_file);
if (strcmp(val, "stderr") != 0)
ctx->error_file = fopen(val, "a");
}
free(blocks);
return 0;
}
int sc_establish_context(struct sc_context **ctx_out, const char *app_name)
{
const char *default_app = "default";
struct sc_context *ctx;
int i, r;
assert(ctx_out != NULL);
ctx = malloc(sizeof(struct sc_context));
if (ctx == NULL)
return SC_ERROR_OUT_OF_MEMORY;
memset(ctx, 0, sizeof(struct sc_context));
set_defaults(ctx);
ctx->app_name = app_name ? strdup(app_name) : strdup(default_app);
ctx->conf = scconf_init(OPENSC_CONF_PATH);
if (ctx->conf) {
r = scconf_parse(ctx->conf);
if (r < 1) {
scconf_deinit(ctx->conf);
ctx->conf = NULL;
} else {
load_parameters(ctx, default_app);
if (strcmp(default_app, ctx->app_name)) {
load_parameters(ctx, ctx->app_name);
}
}
}
#ifdef HAVE_PTHREAD
pthread_mutex_init(&ctx->mutex, NULL);
#endif
for (i = 0; i < SC_MAX_READER_DRIVERS+1; i++)
ctx->reader_drivers[i] = NULL;
i = 0;
#if 1 && defined(HAVE_LIBPCSCLITE)
ctx->reader_drivers[i++] = sc_get_pcsc_driver();
#endif
i = 0;
while (ctx->reader_drivers[i] != NULL) {
ctx->reader_drivers[i]->ops->init(ctx, &ctx->reader_drv_data[i]);
i++;
}
ctx->forced_driver = NULL;
for (i = 0; i < SC_MAX_CARD_DRIVERS+1; i++)
ctx->card_drivers[i] = NULL;
i = 0;
#if 1
ctx->card_drivers[i++] = sc_get_setcos_driver();
#endif
#if 1
ctx->card_drivers[i++] = sc_get_miocos_driver();
#endif
#if 1
ctx->card_drivers[i++] = sc_get_flex_driver();
#endif
#if 1
ctx->card_drivers[i++] = sc_get_emv_driver();
#endif
#if 1
ctx->card_drivers[i++] = sc_get_tcos_driver();
#endif
#if defined(HAVE_OPENSSL)
ctx->card_drivers[i++] = sc_get_gpk_driver();
#endif
#if 1
/* this should be last in line */
ctx->card_drivers[i++] = sc_get_default_driver();
#endif
*ctx_out = ctx;
return 0;
}
int sc_release_context(struct sc_context *ctx)
{
int i;
assert(ctx != NULL);
SC_FUNC_CALLED(ctx, 1);
for (i = 0; i < ctx->reader_count; i++) {
struct sc_reader *rdr = ctx->reader[i];
if (rdr->ops->release != NULL)
rdr->ops->release(rdr);
free(rdr->name);
free(rdr);
}
for (i = 0; ctx->reader_drivers[i] != NULL; i++) {
const struct sc_reader_driver *drv = ctx->reader_drivers[i];
if (drv->ops->finish != NULL)
drv->ops->finish(ctx->reader_drv_data[i]);
}
ctx->debug_file = ctx->error_file = NULL;
if (ctx->conf)
scconf_deinit(ctx->conf);
free(ctx->app_name);
free(ctx);
return 0;
}
int sc_set_card_driver(struct sc_context *ctx, const char *short_name)
{
int i = 0, match = 0;
#ifdef HAVE_PTHREAD
pthread_mutex_lock(&ctx->mutex);
#endif
if (short_name == NULL) {
ctx->forced_driver = NULL;
match = 1;
} else while (ctx->card_drivers[i] != NULL && i < SC_MAX_CARD_DRIVERS) {
const struct sc_card_driver *drv = ctx->card_drivers[i];
if (strcmp(short_name, drv->short_name) == 0) {
ctx->forced_driver = drv;
match = 1;
break;
}
i++;
}
#ifdef HAVE_PTHREAD
pthread_mutex_unlock(&ctx->mutex);
#endif
if (match == 0)
return SC_ERROR_OBJECT_NOT_FOUND; /* FIXME: invent error */
return 0;
}
void sc_format_path(const char *str, struct sc_path *path)
{
int len = 0;
@ -353,19 +173,6 @@ int sc_append_path_id(struct sc_path *dest, const u8 *id, size_t idlen)
return 0;
}
int sc_get_cache_dir(struct sc_context *ctx, char *buf, size_t bufsize)
{
char *homedir;
const char *cache_dir = ".eid/cache";
homedir = getenv("HOME");
if (homedir == NULL)
return SC_ERROR_INTERNAL;
if (snprintf(buf, bufsize, "%s/%s", homedir, cache_dir) < 0)
return SC_ERROR_BUFFER_TOO_SMALL;
return 0;
}
const char *sc_strerror(int error)
{
const char *errors[] = {