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HS 2.0: Convert icon storage to use dl_list

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This simplifies the list operations quite a bit.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-12-19 18:49:32 +02:00
parent 446dd7486c
commit ca9968a012
4 changed files with 25 additions and 32 deletions
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46
wpa_supplicant/hs20_supplicant.c
View file

@ -189,7 +189,6 @@ int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
struct wpa_bss *bss;
int res;
struct icon_entry *icon_entry;
struct icon_entry *picon_entry;
bss = wpa_bss_get_bssid(wpa_s, dst);
if (!bss) {
@ -232,14 +231,7 @@ int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
icon_entry->file_name[payload_len] = '\0';
icon_entry->dialog_token = res;
if (wpa_s->icon_head == NULL) {
wpa_s->icon_head = icon_entry;
} else {
picon_entry = wpa_s->icon_head;
while (picon_entry->next)
picon_entry = picon_entry->next;
picon_entry->next = icon_entry;
}
dl_list_add(&wpa_s->icon_head, &icon_entry->list);
}
return ret;
@ -252,7 +244,7 @@ static struct icon_entry * hs20_find_icon(struct wpa_supplicant *wpa_s,
{
struct icon_entry *icon;
for (icon = wpa_s->icon_head; icon; icon = icon->next) {
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;
@ -276,9 +268,6 @@ int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
MAC2STR(bssid), file_name, (unsigned int) offset,
(unsigned int) size, (unsigned int) buf_len);
if (!wpa_s->icon_head)
return -1;
icon = hs20_find_icon(wpa_s, bssid, file_name);
if (!icon || !icon->image || offset >= icon->image_len)
return -1;
@ -318,8 +307,7 @@ static void hs20_free_icon_entry(struct icon_entry *icon)
int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
const char *file_name)
{
struct icon_entry **picon_entry;
struct icon_entry *icon_entry;
struct icon_entry *icon, *tmp;
int count = 0;
if (!bssid)
@ -331,22 +319,15 @@ int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
wpa_printf(MSG_DEBUG, "HS20: Delete stored icons for "
MACSTR " file name %s", MAC2STR(bssid), file_name);
picon_entry = &wpa_s->icon_head;
while (*picon_entry) {
if ((!bssid ||
os_memcmp((*picon_entry)->bssid, bssid, ETH_ALEN) == 0) &&
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((*picon_entry)->file_name, file_name) == 0)) {
icon_entry = *picon_entry;
*picon_entry = icon_entry->next;
hs20_free_icon_entry(icon_entry);
os_strcmp(icon->file_name, file_name) == 0)) {
dl_list_del(&icon->list);
hs20_free_icon_entry(icon);
count++;
continue;
}
if (*picon_entry == NULL)
break;
picon_entry = &(*picon_entry)->next;
}
return count == 0 ? -1 : 0;
}
@ -386,7 +367,7 @@ static int hs20_process_icon_binary_file(struct wpa_supplicant *wpa_s,
u16 data_len;
struct icon_entry *icon;
for (icon = wpa_s->icon_head; icon; icon = icon->next) {
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);
@ -1154,9 +1135,16 @@ 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);
}

1
wpa_supplicant/hs20_supplicant.h
View file

@ -36,6 +36,7 @@ int hs20_fetch_osu(struct wpa_supplicant *wpa_s);
void hs20_cancel_fetch_osu(struct wpa_supplicant *wpa_s);
void hs20_icon_fetch_failed(struct wpa_supplicant *wpa_s);
void hs20_start_osu_scan(struct wpa_supplicant *wpa_s);
void hs20_init(struct wpa_supplicant *wpa_s);
void hs20_deinit(struct wpa_supplicant *wpa_s);
int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
const char *file_name, size_t offset, size_t size,

4
wpa_supplicant/wpa_supplicant.c
View file

@ -4750,6 +4750,10 @@ static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
#ifdef CONFIG_HS20
hs20_init(wpa_s);
#endif /* CONFIG_HS20 */
return 0;
}

4
wpa_supplicant/wpa_supplicant_i.h
View file

@ -426,7 +426,7 @@ enum wpa_supplicant_test_failure {
};
struct icon_entry {
struct icon_entry *next;
struct dl_list list;
u8 bssid[ETH_ALEN];
u8 dialog_token;
char *file_name;
@ -914,7 +914,7 @@ struct wpa_supplicant {
unsigned int fetch_osu_icon_in_progress:1;
struct wpa_bss *interworking_gas_bss;
unsigned int osu_icon_id;
struct icon_entry *icon_head;
struct dl_list icon_head; /* struct icon_entry */
struct osu_provider *osu_prov;
size_t osu_prov_count;
struct os_reltime osu_icon_fetch_start;