DGNum/hostapd
6
0
Fork 0
Code Issues Pull requests 1 Projects Releases Packages Wiki Activity Actions

WPS UFD: Use private data structure for oob_device_data

Browse source 
This gets rid of global variable use and may be needed to allow
concurrent access in some case if the interface is extended.
This commit is contained in:
Jouni Malinen 2009-02-26 22:04:49 +02:00
parent 390cd3105d
commit 70e070461d
3 changed files with 46 additions and 29 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/wps/wps.h
View file

@ -532,10 +532,10 @@ struct wps_context {
struct oob_device_data {
char *device_path;
int (*init_func)(struct wps_context *, int);
struct wpabuf * (*read_func)(void);
int (*write_func)(struct wpabuf *);
int (*deinit_func)(void);
void * (*init_func)(struct wps_context *, int);
struct wpabuf * (*read_func)(void *);
int (*write_func)(void *, struct wpabuf *);
void (*deinit_func)(void *);
};
struct wps_registrar *

20
src/wps/wps_common.c
View file

@ -473,10 +473,12 @@ int wps_process_oob(struct wps_context *wps, int registrar)
struct oob_device_data *oob_dev = wps->oob_dev;
struct wpabuf *data;
int ret, write_f, oob_method = wps->oob_conf.oob_method;
void *oob_priv;
write_f = oob_method == OOB_METHOD_DEV_PWD_E ? !registrar : registrar;
if (oob_dev->init_func(wps, registrar) < 0) {
oob_priv = oob_dev->init_func(wps, registrar);
if (oob_priv == NULL) {
wpa_printf(MSG_ERROR, "WPS: Failed to initialize OOB device");
return -1;
}
@ -488,12 +490,15 @@ int wps_process_oob(struct wps_context *wps, int registrar)
data = wps_get_oob_dev_pwd(wps);
ret = 0;
if (data == NULL || wps->oob_dev->write_func(data) < 0)
if (data == NULL ||
wps->oob_dev->write_func(oob_priv, data) < 0)
ret = -1;
} else {
data = oob_dev->read_func();
if (data == NULL)
data = oob_dev->read_func(oob_priv);
if (data == NULL) {
oob_dev->deinit_func(oob_priv);
return -1;
}
if (oob_method == OOB_METHOD_CRED)
ret = wps_parse_oob_cred(wps, data);
@ -503,14 +508,11 @@ int wps_process_oob(struct wps_context *wps, int registrar)
wpabuf_free(data);
if (ret < 0) {
wpa_printf(MSG_ERROR, "WPS: Failed to process OOB data");
oob_dev->deinit_func(oob_priv);
return -1;
}
if (oob_dev->deinit_func() < 0) {
wpa_printf(MSG_ERROR, "WPS: Failed to deinitialize OOB "
"device");
return -1;
}
oob_dev->deinit_func(oob_priv);
return 0;
}

47
src/wps/wps_ufd.c
View file

@ -22,7 +22,9 @@
#include "wps/wps.h"
static int ufd_fd = -1;
struct wps_ufd_data {
int ufd_fd;
};
static int dev_pwd_e_file_filter(const struct dirent *entry)
@ -105,28 +107,33 @@ static int ufd_mkdir(const char *path)
}
static int init_ufd(struct wps_context *wps, int registrar)
static void * init_ufd(struct wps_context *wps, int registrar)
{
int write_f;
char temp[128];
char *path = wps->oob_dev->device_path;
char filename[13];
struct wps_ufd_data *data;
int ufd_fd;
if (path == NULL)
return NULL;
write_f = wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ?
!registrar : registrar;
if (get_file_name(wps, registrar, filename) < 0) {
wpa_printf(MSG_ERROR, "WPS (UFD): Failed to get file name");
return -1;
return NULL;
}
if (write_f) {
os_snprintf(temp, sizeof(temp), "%s/SMRTNTKY", path);
if (ufd_mkdir(temp))
return -1;
return NULL;
os_snprintf(temp, sizeof(temp), "%s/SMRTNTKY/WFAWSC", path);
if (ufd_mkdir(temp))
return -1;
return NULL;
}
os_snprintf(temp, sizeof(temp), "%s/SMRTNTKY/WFAWSC/%s", path,
@ -139,20 +146,25 @@ static int init_ufd(struct wps_context *wps, int registrar)
if (ufd_fd < 0) {
wpa_printf(MSG_ERROR, "WPS (UFD): Failed to open %s: %s",
temp, strerror(errno));
return -1;
return NULL;
}
return 0;
data = os_zalloc(sizeof(*data));
if (data == NULL)
return NULL;
data->ufd_fd = ufd_fd;
return data;
}
static struct wpabuf * read_ufd(void)
static struct wpabuf * read_ufd(void *priv)
{
struct wps_ufd_data *data = priv;
struct wpabuf *buf;
struct stat s;
size_t file_size;
if (fstat(ufd_fd, &s) < 0) {
if (fstat(data->ufd_fd, &s) < 0) {
wpa_printf(MSG_ERROR, "WPS (UFD): Failed to get file size");
return NULL;
}
@ -165,7 +177,8 @@ static struct wpabuf * read_ufd(void)
return NULL;
}
if (read(ufd_fd, wpabuf_mhead(buf), file_size) != (int) file_size) {
if (read(data->ufd_fd, wpabuf_mhead(buf), file_size) !=
(int) file_size) {
wpabuf_free(buf);
wpa_printf(MSG_ERROR, "WPS (UFD): Failed to read");
return NULL;
@ -175,9 +188,11 @@ static struct wpabuf * read_ufd(void)
}
static int write_ufd(struct wpabuf *buf)
static int write_ufd(void *priv, struct wpabuf *buf)
{
if (write(ufd_fd, wpabuf_mhead(buf), wpabuf_len(buf)) !=
struct wps_ufd_data *data = priv;
if (write(data->ufd_fd, wpabuf_mhead(buf), wpabuf_len(buf)) !=
(int) wpabuf_len(buf)) {
wpa_printf(MSG_ERROR, "WPS (UFD): Failed to write");
return -1;
@ -186,11 +201,11 @@ static int write_ufd(struct wpabuf *buf)
}
static int deinit_ufd(void)
static void deinit_ufd(void *priv)
{
close(ufd_fd);
ufd_fd = -1;
return 0;
struct wps_ufd_data *data = priv;
close(data->ufd_fd);
os_free(data);
}