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Diffstat (limited to 'wpa_supplicant/hs20_supplicant.c')
-rw-r--r--wpa_supplicant/hs20_supplicant.c173
1 files changed, 167 insertions, 6 deletions
diff --git a/wpa_supplicant/hs20_supplicant.c b/wpa_supplicant/hs20_supplicant.c
index e6c564b3..57b99436 100644
--- a/wpa_supplicant/hs20_supplicant.c
+++ b/wpa_supplicant/hs20_supplicant.c
@@ -25,6 +25,7 @@
#include "gas_query.h"
#include "interworking.h"
#include "hs20_supplicant.h"
+#include "base64.h"
#define OSU_MAX_ITEMS 10
@@ -180,13 +181,14 @@ struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
- const u8 *payload, size_t payload_len)
+ const u8 *payload, size_t payload_len, int inmem)
{
struct wpabuf *buf;
int ret = 0;
int freq;
struct wpa_bss *bss;
int res;
+ struct icon_entry *icon_entry;
bss = wpa_bss_get_bssid(wpa_s, dst);
if (!bss) {
@@ -210,15 +212,127 @@ int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
if (res < 0) {
wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
wpabuf_free(buf);
- ret = -1;
+ return -1;
} else
wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
"%u", res);
+ if (inmem) {
+ icon_entry = os_zalloc(sizeof(struct icon_entry));
+ if (!icon_entry)
+ return -1;
+ os_memcpy(icon_entry->bssid, dst, ETH_ALEN);
+ icon_entry->file_name = os_malloc(payload_len + 1);
+ if (!icon_entry->file_name) {
+ os_free(icon_entry);
+ return -1;
+ }
+ os_memcpy(icon_entry->file_name, payload, payload_len);
+ icon_entry->file_name[payload_len] = '\0';
+ icon_entry->dialog_token = res;
+
+ dl_list_add(&wpa_s->icon_head, &icon_entry->list);
+ }
+
return ret;
}
+static struct icon_entry * hs20_find_icon(struct wpa_supplicant *wpa_s,
+ const u8 *bssid,
+ const char *file_name)
+{
+ struct icon_entry *icon;
+
+ dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
+ if (os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0 &&
+ os_strcmp(icon->file_name, file_name) == 0 && icon->image)
+ return icon;
+ }
+
+ return NULL;
+}
+
+
+int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
+ const char *file_name, size_t offset, size_t size,
+ char *reply, size_t buf_len)
+{
+ struct icon_entry *icon;
+ size_t out_size;
+ unsigned char *b64;
+ size_t b64_size;
+ int reply_size;
+
+ wpa_printf(MSG_DEBUG, "HS20: Get icon " MACSTR " %s @ %u +%u (%u)",
+ MAC2STR(bssid), file_name, (unsigned int) offset,
+ (unsigned int) size, (unsigned int) buf_len);
+
+ icon = hs20_find_icon(wpa_s, bssid, file_name);
+ if (!icon || !icon->image || offset >= icon->image_len)
+ return -1;
+ if (size > icon->image_len - offset)
+ size = icon->image_len - offset;
+ out_size = buf_len - 3 /* max base64 padding */;
+ if (size * 4 > out_size * 3)
+ size = out_size * 3 / 4;
+ if (size == 0)
+ return -1;
+
+ b64 = base64_encode(&icon->image[offset], size, &b64_size);
+ if (buf_len >= b64_size) {
+ os_memcpy(reply, b64, b64_size);
+ reply_size = b64_size;
+ } else {
+ reply_size = -1;
+ }
+ os_free(b64);
+ return reply_size;
+}
+
+
+static void hs20_free_icon_entry(struct icon_entry *icon)
+{
+ wpa_printf(MSG_DEBUG, "HS20: Free stored icon from " MACSTR
+ " dialog_token=%u file_name=%s image_len=%u",
+ MAC2STR(icon->bssid), icon->dialog_token,
+ icon->file_name ? icon->file_name : "N/A",
+ (unsigned int) icon->image_len);
+ os_free(icon->file_name);
+ os_free(icon->image);
+ os_free(icon);
+}
+
+
+int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
+ const char *file_name)
+{
+ struct icon_entry *icon, *tmp;
+ int count = 0;
+
+ if (!bssid)
+ wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons");
+ else if (!file_name)
+ wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons for "
+ MACSTR, MAC2STR(bssid));
+ else
+ wpa_printf(MSG_DEBUG, "HS20: Delete stored icons for "
+ MACSTR " file name %s", MAC2STR(bssid), file_name);
+
+ dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
+ list) {
+ if ((!bssid || os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0) &&
+ (!file_name ||
+ os_strcmp(icon->file_name, file_name) == 0)) {
+ dl_list_del(&icon->list);
+ hs20_free_icon_entry(icon);
+ count++;
+ }
+ }
+ return count == 0 ? -1 : 0;
+}
+
+
static void hs20_set_osu_access_permission(const char *osu_dir,
const char *fname)
{
@@ -243,14 +357,51 @@ static void hs20_set_osu_access_permission(const char *osu_dir,
}
}
+
+static void hs20_remove_duplicate_icons(struct wpa_supplicant *wpa_s,
+ struct icon_entry *new_icon)
+{
+ struct icon_entry *icon, *tmp;
+
+ dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
+ list) {
+ if (icon == new_icon)
+ continue;
+ if (os_memcmp(icon->bssid, new_icon->bssid, ETH_ALEN) == 0 &&
+ os_strcmp(icon->file_name, new_icon->file_name) == 0) {
+ dl_list_del(&icon->list);
+ hs20_free_icon_entry(icon);
+ }
+ }
+}
+
+
static int hs20_process_icon_binary_file(struct wpa_supplicant *wpa_s,
const u8 *sa, const u8 *pos,
- size_t slen)
+ size_t slen, u8 dialog_token)
{
char fname[256];
int png;
FILE *f;
u16 data_len;
+ struct icon_entry *icon;
+
+ dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
+ if (icon->dialog_token == dialog_token && !icon->image &&
+ os_memcmp(icon->bssid, sa, ETH_ALEN) == 0) {
+ icon->image = os_malloc(slen);
+ if (!icon->image)
+ return -1;
+ os_memcpy(icon->image, pos, slen);
+ icon->image_len = slen;
+ hs20_remove_duplicate_icons(wpa_s, icon);
+ wpa_msg(wpa_s, MSG_INFO,
+ "RX-HS20-ICON " MACSTR " %s %u",
+ MAC2STR(sa), icon->file_name,
+ (unsigned int) icon->image_len);
+ return 0;
+ }
+ }
wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR " Icon Binary File",
MAC2STR(sa));
@@ -358,7 +509,7 @@ static void hs20_osu_icon_fetch_result(struct wpa_supplicant *wpa_s, int res)
void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, const u8 *sa,
- const u8 *data, size_t slen)
+ const u8 *data, size_t slen, u8 dialog_token)
{
const u8 *pos = data;
u8 subtype;
@@ -445,7 +596,8 @@ void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
}
break;
case HS20_STYPE_ICON_BINARY_FILE:
- ret = hs20_process_icon_binary_file(wpa_s, sa, pos, slen);
+ ret = hs20_process_icon_binary_file(wpa_s, sa, pos, slen,
+ dialog_token);
if (wpa_s->fetch_osu_icon_in_progress) {
hs20_osu_icon_fetch_result(wpa_s, ret);
eloop_cancel_timeout(hs20_continue_icon_fetch,
@@ -579,7 +731,8 @@ void hs20_next_osu_icon(struct wpa_supplicant *wpa_s)
if (hs20_anqp_send_req(wpa_s, osu->bssid,
BIT(HS20_STYPE_ICON_REQUEST),
(u8 *) icon->filename,
- os_strlen(icon->filename)) < 0) {
+ os_strlen(icon->filename),
+ 0) < 0) {
icon->failed = 1;
continue;
}
@@ -1002,8 +1155,16 @@ void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
}
+void hs20_init(struct wpa_supplicant *wpa_s)
+{
+ dl_list_init(&wpa_s->icon_head);
+}
+
+
void hs20_deinit(struct wpa_supplicant *wpa_s)
{
eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
hs20_free_osu_prov(wpa_s);
+ if (wpa_s->icon_head.next)
+ hs20_del_icon(wpa_s, NULL, NULL);
}