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358a734ae9
opensc/opensc-0.15.0-fork-issue.patch
Nikos Mavrogiannopoulos 3d6c1ab89e Use the upstream accepted patch to address issue with C_Initialize after fork() 
Related: rhbz#1218797
2015-08-04 11:31:50 +02:00

400 lines
14 KiB
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diff --git a/configure.ac b/configure.ac
index 67aa5c4..e65c919 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,8 +39,8 @@ OPENSC_VS_FF_PRODUCT_NAME="VS_FF_PRODUCT_NAME"
# (Code changed: REVISION++)
# (Oldest interface removed: OLDEST++)
# (Interfaces added: CURRENT++, REVISION=0)
-OPENSC_LT_CURRENT="3"
-OPENSC_LT_OLDEST="3"
+OPENSC_LT_CURRENT="4"
+OPENSC_LT_OLDEST="4"
OPENSC_LT_REVISION="0"
OPENSC_LT_AGE="0"
OPENSC_LT_AGE="$((${OPENSC_LT_CURRENT}-${OPENSC_LT_OLDEST}))"
diff --git a/src/libopensc/card.c b/src/libopensc/card.c
index 2cb16f6..f3cb152 100644
--- a/src/libopensc/card.c
+++ b/src/libopensc/card.c
@@ -218,7 +218,8 @@ int sc_connect_card(sc_reader_t *reader, sc_card_t **card_out)
if (ops == NULL || ops->match_card == NULL) {
continue;
}
- else if (!ctx->enable_default_driver && !strcmp("default", drv->short_name)) {
+ else if (!(ctx->flags & SC_CTX_FLAG_ENABLE_DEFAULT_DRIVER)
+ && !strcmp("default", drv->short_name)) {
sc_log(ctx , "ignore 'default' card driver");
continue;
}
diff --git a/src/libopensc/ctx.c b/src/libopensc/ctx.c
index 5595dc4..15312f7 100644
--- a/src/libopensc/ctx.c
+++ b/src/libopensc/ctx.c
@@ -186,8 +186,7 @@ static void set_defaults(sc_context_t *ctx, struct _sc_ctx_options *opts)
if (ctx->debug_file && (ctx->debug_file != stderr && ctx->debug_file != stdout))
fclose(ctx->debug_file);
ctx->debug_file = stderr;
- ctx->paranoid_memory = 0;
- ctx->enable_default_driver = 0;
+ ctx->flags = 0;
#ifdef __APPLE__
/* Override the default debug log for OpenSC.tokend to be different from PKCS#11.
@@ -258,11 +257,13 @@ load_parameters(sc_context_t *ctx, scconf_block *block, struct _sc_ctx_options *
sc_ctx_log_to_file(ctx, val);
}
- ctx->paranoid_memory = scconf_get_bool (block, "paranoid-memory",
- ctx->paranoid_memory);
+ if (scconf_get_bool (block, "paranoid-memory",
+ ctx->flags & SC_CTX_FLAG_PARANOID_MEMORY))
+ ctx->flags |= SC_CTX_FLAG_PARANOID_MEMORY;
- ctx->enable_default_driver = scconf_get_bool (block, "enable_default_driver",
- ctx->enable_default_driver);
+ if (scconf_get_bool (block, "enable_default_driver",
+ ctx->flags & SC_CTX_FLAG_ENABLE_DEFAULT_DRIVER))
+ ctx->flags |= SC_CTX_FLAG_ENABLE_DEFAULT_DRIVER;
val = scconf_get_str(block, "force_card_driver", NULL);
if (val) {
@@ -723,7 +724,9 @@ int sc_context_create(sc_context_t **ctx_out, const sc_context_param_t *parm)
return SC_ERROR_OUT_OF_MEMORY;
}
+ ctx->flags = parm->flags;
set_defaults(ctx, &opts);
+
list_init(&ctx->readers);
list_attributes_seeker(&ctx->readers, reader_list_seeker);
/* set thread context and create mutex object (if specified) */
diff --git a/src/libopensc/opensc.h b/src/libopensc/opensc.h
index 8c4e81f..e9a4d19 100644
--- a/src/libopensc/opensc.h
+++ b/src/libopensc/opensc.h
@@ -639,13 +639,25 @@ typedef struct {
unsigned long (*thread_id)(void);
} sc_thread_context_t;
+/** Stop modifing or using external resources
+ *
+ * Currently this is used to avoid freeing duplicated external resources for a
+ * process that has been forked. For example, a child process may want to leave
+ * the duplicated card handles for the parent process. With this flag the child
+ * process indicates that shall the reader shall ignore those resources when
+ * calling sc_disconnect_card.
+ */
+#define SC_CTX_FLAG_TERMINATE 0x00000001
+#define SC_CTX_FLAG_PARANOID_MEMORY 0x00000002
+#define SC_CTX_FLAG_DEBUG_MEMORY 0x00000004
+#define SC_CTX_FLAG_ENABLE_DEFAULT_DRIVER 0x00000008
+
typedef struct sc_context {
scconf_context *conf;
scconf_block *conf_blocks[3];
char *app_name;
int debug;
- int paranoid_memory;
- int enable_default_driver;
+ unsigned long flags;
FILE *debug_file;
char *debug_filename;
@@ -719,7 +731,7 @@ typedef struct {
* dependend configuration data). If NULL the name "default"
* will be used. */
const char *app_name;
- /** flags, currently unused */
+ /** context flags */
unsigned long flags;
/** mutex functions to use (optional) */
sc_thread_context_t *thread_ctx;
diff --git a/src/libopensc/reader-ctapi.c b/src/libopensc/reader-ctapi.c
index 919c3f0..c526500 100644
--- a/src/libopensc/reader-ctapi.c
+++ b/src/libopensc/reader-ctapi.c
@@ -116,6 +116,9 @@ static int refresh_attributes(sc_reader_t *reader)
u8 cmd[5], rbuf[256], sad, dad;
unsigned short lr;
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
cmd[0] = CTBCS_CLA;
cmd[1] = CTBCS_INS_STATUS;
cmd[2] = CTBCS_P1_CT_KERNEL;
@@ -158,6 +161,9 @@ static int ctapi_internal_transmit(sc_reader_t *reader,
u8 dad, sad;
unsigned short lr;
char rv;
+
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
if (control)
dad = 1;
@@ -235,6 +241,9 @@ static int ctapi_connect(sc_reader_t *reader)
unsigned short lr;
int r;
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
cmd[0] = CTBCS_CLA;
cmd[1] = CTBCS_INS_REQUEST;
cmd[2] = CTBCS_P1_INTERFACE1;
@@ -280,7 +289,9 @@ static int ctapi_release(sc_reader_t *reader)
{
struct ctapi_private_data *priv = GET_PRIV_DATA(reader);
- priv->funcs.CT_close(priv->ctn);
+
+ if (!(reader->ctx->flags & SC_CTX_FLAG_TERMINATE))
+ priv->funcs.CT_close(priv->ctn);
free(priv);
return 0;
diff --git a/src/libopensc/reader-openct.c b/src/libopensc/reader-openct.c
index a276d52..2d7d6bd 100644
--- a/src/libopensc/reader-openct.c
+++ b/src/libopensc/reader-openct.c
@@ -154,7 +154,7 @@ static int openct_reader_release(sc_reader_t *reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_VERBOSE);
if (data) {
- if (data->h)
+ if (data->h && !(reader->ctx->flags & SC_CTX_FLAG_TERMINATE))
ct_reader_disconnect(data->h);
sc_mem_clear(data, sizeof(*data));
reader->drv_data = NULL;
@@ -174,6 +174,9 @@ static int openct_reader_detect_card_presence(sc_reader_t *reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_VERBOSE);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
reader->flags = 0;
if (!data->h && !(data->h = ct_reader_connect(data->num)))
return 0;
@@ -197,6 +200,9 @@ openct_reader_connect(sc_reader_t *reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_VERBOSE);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
if (data->h)
ct_reader_disconnect(data->h);
@@ -242,7 +248,7 @@ static int openct_reader_disconnect(sc_reader_t *reader)
struct driver_data *data = (struct driver_data *) reader->drv_data;
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_VERBOSE);
- if (data->h)
+ if (data->h && !(reader->flags & SC_TERMINATE))
ct_reader_disconnect(data->h);
data->h = NULL;
return SC_SUCCESS;
@@ -256,6 +262,9 @@ openct_reader_internal_transmit(sc_reader_t *reader,
struct driver_data *data = (struct driver_data *) reader->drv_data;
int rc;
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
/* Hotplug check */
if ((rc = openct_reader_reconnect(reader)) < 0)
return rc;
@@ -324,6 +333,9 @@ static int openct_reader_perform_verify(sc_reader_t *reader, struct sc_pin_cmd_d
u8 buf[254];
int rc;
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
/* Hotplug check */
if ((rc = openct_reader_reconnect(reader)) < 0)
return rc;
@@ -382,6 +394,9 @@ static int openct_reader_lock(sc_reader_t *reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_VERBOSE);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
/* Hotplug check */
if ((rc = openct_reader_reconnect(reader)) < 0)
return rc;
@@ -408,6 +423,9 @@ static int openct_reader_unlock(sc_reader_t *reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_VERBOSE);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
/* Not connected */
if (data->h == NULL)
return 0;
diff --git a/src/libopensc/reader-pcsc.c b/src/libopensc/reader-pcsc.c
index 666265d..7c26a25 100644
--- a/src/libopensc/reader-pcsc.c
+++ b/src/libopensc/reader-pcsc.c
@@ -184,6 +184,9 @@ static int pcsc_internal_transmit(sc_reader_t *reader,
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_NORMAL);
card = priv->pcsc_card;
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
sSendPci.dwProtocol = opensc_proto_to_pcsc(reader->active_protocol);
sSendPci.cbPciLength = sizeof(sSendPci);
sRecvPci.dwProtocol = opensc_proto_to_pcsc(reader->active_protocol);
@@ -284,6 +287,9 @@ static int refresh_attributes(sc_reader_t *reader)
sc_debug(reader->ctx, SC_LOG_DEBUG_NORMAL, "%s check", reader->name);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
if (priv->reader_state.szReader == NULL) {
priv->reader_state.szReader = reader->name;
priv->reader_state.dwCurrentState = SCARD_STATE_UNAWARE;
@@ -505,7 +511,8 @@ static int pcsc_disconnect(sc_reader_t * reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_NORMAL);
- priv->gpriv->SCardDisconnect(priv->pcsc_card, priv->gpriv->disconnect_action);
+ if (!(reader->ctx->flags & SC_CTX_FLAG_TERMINATE))
+ priv->gpriv->SCardDisconnect(priv->pcsc_card, priv->gpriv->disconnect_action);
reader->flags = 0;
return SC_SUCCESS;
}
@@ -518,6 +525,9 @@ static int pcsc_lock(sc_reader_t *reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_NORMAL);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
rv = priv->gpriv->SCardBeginTransaction(priv->pcsc_card);
switch (rv) {
@@ -555,6 +565,9 @@ static int pcsc_unlock(sc_reader_t *reader)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_NORMAL);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
rv = priv->gpriv->SCardEndTransaction(priv->pcsc_card, priv->gpriv->transaction_end_action);
priv->locked = 0;
@@ -597,12 +610,18 @@ static int pcsc_cancel(sc_context_t *ctx)
struct pcsc_global_private_data *gpriv = (struct pcsc_global_private_data *)ctx->reader_drv_data;
SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_NORMAL);
+
+ if (ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
#ifndef _WIN32
if (gpriv->pcsc_wait_ctx != -1) {
rv = gpriv->SCardCancel(gpriv->pcsc_wait_ctx);
- if (rv == SCARD_S_SUCCESS)
+ if (rv == SCARD_S_SUCCESS) {
/* Also close and clear the waiting context */
rv = gpriv->SCardReleaseContext(gpriv->pcsc_wait_ctx);
+ gpriv->pcsc_wait_ctx = -1;
+ }
}
#else
rv = gpriv->SCardCancel(gpriv->pcsc_ctx);
@@ -747,7 +766,7 @@ static int pcsc_finish(sc_context_t *ctx)
SC_FUNC_CALLED(ctx, SC_LOG_DEBUG_NORMAL);
if (gpriv) {
- if (gpriv->pcsc_ctx != -1)
+ if (gpriv->pcsc_ctx != -1 && !(ctx->flags & SC_CTX_FLAG_TERMINATE))
gpriv->SCardReleaseContext(gpriv->pcsc_ctx);
if (gpriv->dlhandle != NULL)
sc_dlclose(gpriv->dlhandle);
@@ -1693,6 +1712,9 @@ pcsc_pin_cmd(sc_reader_t *reader, struct sc_pin_cmd_data *data)
SC_FUNC_CALLED(reader->ctx, SC_LOG_DEBUG_NORMAL);
+ if (reader->ctx->flags & SC_CTX_FLAG_TERMINATE)
+ return SC_ERROR_NOT_ALLOWED;
+
if (priv->gpriv->SCardControl == NULL)
return SC_ERROR_NOT_SUPPORTED;
@@ -1982,8 +2004,8 @@ static int transform_pace_output(u8 *rbuf, size_t rbuflen,
static int
pcsc_perform_pace(struct sc_reader *reader, void *input_pace, void *output_pace)
{
- struct establish_pace_channel_input *pace_input = (struct establish_pace_channel_input *) input_pace;
- struct establish_pace_channel_output *pace_output = (struct establish_pace_channel_output *) output_pace;
+ struct establish_pace_channel_input *pace_input = (struct establish_pace_channel_input *) input_pace;
+ struct establish_pace_channel_output *pace_output = (struct establish_pace_channel_output *) output_pace;
struct pcsc_private_data *priv;
u8 rbuf[SC_MAX_EXT_APDU_BUFFER_SIZE], sbuf[SC_MAX_EXT_APDU_BUFFER_SIZE];
size_t rcount = sizeof rbuf, scount = sizeof sbuf;
diff --git a/src/libopensc/sc.c b/src/libopensc/sc.c
index 052d6eb..5cddd32 100644
--- a/src/libopensc/sc.c
+++ b/src/libopensc/sc.c
@@ -806,7 +806,7 @@ void *sc_mem_alloc_secure(sc_context_t *ctx, size_t len)
locked = 1;
#endif
if (!locked) {
- if (ctx->paranoid_memory) {
+ if (ctx->flags & SC_CTX_FLAG_PARANOID_MEMORY) {
sc_do_log (ctx, 0, NULL, 0, NULL, "cannot lock memory, failing allocation because paranoid set");
free (pointer);
pointer = NULL;
diff --git a/src/pkcs11/pkcs11-global.c b/src/pkcs11/pkcs11-global.c
index a01cbab..349ee29 100644
--- a/src/pkcs11/pkcs11-global.c
+++ b/src/pkcs11/pkcs11-global.c
@@ -202,9 +202,11 @@ CK_RV C_Initialize(CK_VOID_PTR pInitArgs)
unsigned int i;
sc_context_param_t ctx_opts;
- /* Handle fork() exception */
#if !defined(_WIN32)
+ /* Handle fork() exception */
if (current_pid != initialized_pid) {
+ if (context)
+ context->flags |= SC_CTX_FLAG_TERMINATE;
C_Finalize(NULL_PTR);
}
initialized_pid = current_pid;
diff --git a/src/tools/opensc-explorer.c b/src/tools/opensc-explorer.c
index fa2581b..75588df 100644
--- a/src/tools/opensc-explorer.c
+++ b/src/tools/opensc-explorer.c
@@ -1836,7 +1836,7 @@ int main(int argc, char * const argv[])
return 1;
}
- ctx->enable_default_driver = 1;
+ ctx->flags |= SC_CTX_FLAG_ENABLE_DEFAULT_DRIVER;
if (verbose > 1) {
ctx->debug = verbose;
diff --git a/src/tools/opensc-tool.c b/src/tools/opensc-tool.c
index d907984..aea526e 100644
--- a/src/tools/opensc-tool.c
+++ b/src/tools/opensc-tool.c
@@ -758,7 +758,7 @@ int main(int argc, char * const argv[])
return 1;
}
- ctx->enable_default_driver = 1;
+ ctx->flags |= SC_CTX_FLAG_ENABLE_DEFAULT_DRIVER;
if (verbose > 1) {
ctx->debug = verbose;
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