diff --git a/components/esp_wifi/lib b/components/esp_wifi/lib index 4477b34a3e..095cf53d13 160000 --- a/components/esp_wifi/lib +++ b/components/esp_wifi/lib @@ -1 +1 @@ -Subproject commit 4477b34a3eb506a9117c357e27b0b431ebe1d2e6 +Subproject commit 095cf53d13485144f20ceb5dd7475fd2b837c217 diff --git a/components/wpa_supplicant/src/esp_supplicant/esp_wpa3.c b/components/wpa_supplicant/src/esp_supplicant/esp_wpa3.c index abfdb31446..8abeb795af 100644 --- a/components/wpa_supplicant/src/esp_supplicant/esp_wpa3.c +++ b/components/wpa_supplicant/src/esp_supplicant/esp_wpa3.c @@ -21,19 +21,25 @@ static struct sae_data g_sae_data; static struct wpabuf *g_sae_token = NULL; +static struct wpabuf *g_sae_commit = NULL; +static struct wpabuf *g_sae_confirm = NULL; int g_allowed_groups[] = { IANA_SECP256R1, 0 }; -static struct wpabuf *wpa3_build_sae_commit(u8 *bssid) +static esp_err_t wpa3_build_sae_commit(u8 *bssid) { int default_group = IANA_SECP256R1; - struct wpabuf *buf; u32 len = 0; u8 own_addr[ETH_ALEN]; const u8 *pw; if (wpa_sta_is_cur_pmksa_set()) { wpa_printf(MSG_INFO, "wpa3: Skip SAE and use cached PMK instead"); - return NULL; + return ESP_FAIL; + } + + if (g_sae_commit) { + wpabuf_free(g_sae_commit); + g_sae_commit = NULL; } if (g_sae_token) { @@ -44,33 +50,34 @@ static struct wpabuf *wpa3_build_sae_commit(u8 *bssid) memset(&g_sae_data, 0, sizeof(g_sae_data)); if (sae_set_group(&g_sae_data, default_group)) { wpa_printf(MSG_ERROR, "wpa3: could not set SAE group %d", default_group); - return NULL; + return ESP_FAIL; } esp_wifi_get_macaddr_internal(WIFI_IF_STA, own_addr); if (!bssid) { wpa_printf(MSG_ERROR, "wpa3: cannot prepare SAE commit with no BSSID!"); - return NULL; + return ESP_FAIL; } pw = (const u8 *)esp_wifi_sta_get_prof_password_internal(); if (sae_prepare_commit(own_addr, bssid, pw, strlen((const char *)pw), NULL, &g_sae_data) < 0) { wpa_printf(MSG_ERROR, "wpa3: failed to prepare SAE commit!"); - return NULL; + return ESP_FAIL; } reuse_data: len += SAE_COMMIT_MAX_LEN; - buf = wpabuf_alloc(len); - if (!buf) { + g_sae_commit = wpabuf_alloc(len); + if (!g_sae_commit) { wpa_printf(MSG_ERROR, "wpa3: failed to allocate buffer for commit msg"); - return NULL; + return ESP_FAIL; } - if (sae_write_commit(&g_sae_data, buf, g_sae_token, NULL) != ESP_OK) { + if (sae_write_commit(&g_sae_data, g_sae_commit, g_sae_token, NULL) != ESP_OK) { wpa_printf(MSG_ERROR, "wpa3: failed to write SAE commit msg"); - wpabuf_free(buf); - return NULL; + wpabuf_free(g_sae_commit); + g_sae_commit = NULL; + return ESP_FAIL; } if (g_sae_token) { @@ -79,53 +86,72 @@ reuse_data: } g_sae_data.state = SAE_COMMITTED; - return buf; + return ESP_OK; } -static struct wpabuf *wpa3_build_sae_confirm(void) +static esp_err_t wpa3_build_sae_confirm(void) { - struct wpabuf *buf; - if (g_sae_data.state != SAE_COMMITTED) - return NULL; + return ESP_FAIL; - buf = wpabuf_alloc(SAE_COMMIT_MAX_LEN); - if (!buf) { - wpa_printf(MSG_ERROR, "wpa3: failed to allocate buffer for confirm msg"); - return NULL; + if (g_sae_confirm) { + wpabuf_free(g_sae_confirm); + g_sae_confirm = NULL; } - if (sae_write_confirm(&g_sae_data, buf) != ESP_OK) { + g_sae_confirm = wpabuf_alloc(SAE_COMMIT_MAX_LEN); + if (!g_sae_confirm) { + wpa_printf(MSG_ERROR, "wpa3: failed to allocate buffer for confirm msg"); + return ESP_FAIL; + } + + if (sae_write_confirm(&g_sae_data, g_sae_confirm) != ESP_OK) { wpa_printf(MSG_ERROR, "wpa3: failed to write SAE confirm msg"); - wpabuf_free(buf); - return NULL; + wpabuf_free(g_sae_confirm); + g_sae_confirm = NULL; + return ESP_FAIL; } g_sae_data.state = SAE_CONFIRMED; - return buf; + return ESP_OK; +} + +void esp_wpa3_free_sae_data(void) +{ + if (g_sae_commit) { + wpabuf_free(g_sae_commit); + g_sae_commit = NULL; + } + + if (g_sae_confirm) { + wpabuf_free(g_sae_confirm); + g_sae_confirm = NULL; + } + sae_clear_data(&g_sae_data); } static u8 *wpa3_build_sae_msg(u8 *bssid, u32 sae_msg_type, u32 *sae_msg_len) { - struct wpabuf *buf = NULL; + u8 *buf = NULL; switch (sae_msg_type) { case SAE_MSG_COMMIT: - buf = wpa3_build_sae_commit(bssid); + if (ESP_OK != wpa3_build_sae_commit(bssid)) + return NULL; + *sae_msg_len = (u32)wpabuf_len(g_sae_commit); + buf = wpabuf_mhead_u8(g_sae_commit); break; case SAE_MSG_CONFIRM: - buf = wpa3_build_sae_confirm(); + if (ESP_OK != wpa3_build_sae_confirm()) + return NULL; + *sae_msg_len = (u32)wpabuf_len(g_sae_confirm); + buf = wpabuf_mhead_u8(g_sae_confirm); break; default: break; } - if (buf) { - *sae_msg_len = (u32)wpabuf_len(buf); - return wpabuf_mhead_u8(buf); - } else { - return NULL; - } + return buf; } static int wpa3_parse_sae_commit(u8 *buf, u32 len, u16 status) @@ -190,6 +216,7 @@ static int wpa3_parse_sae_msg(u8 *buf, u32 len, u32 sae_msg_type, u16 status) break; case SAE_MSG_CONFIRM: ret = wpa3_parse_sae_confirm(buf, len); + esp_wpa3_free_sae_data(); break; default: wpa_printf(MSG_ERROR, "wpa3: Invalid SAE msg type(%d)!", sae_msg_type); diff --git a/components/wpa_supplicant/src/esp_supplicant/esp_wpa3_i.h b/components/wpa_supplicant/src/esp_supplicant/esp_wpa3_i.h index ffbb19e6ca..93223040e8 100644 --- a/components/wpa_supplicant/src/esp_supplicant/esp_wpa3_i.h +++ b/components/wpa_supplicant/src/esp_supplicant/esp_wpa3_i.h @@ -21,6 +21,7 @@ #ifdef CONFIG_WPA3_SAE void esp_wifi_register_wpa3_cb(struct wpa_funcs *wpa_cb); +void esp_wpa3_free_sae_data(void); #else /* CONFIG_WPA3_SAE */ diff --git a/components/wpa_supplicant/src/esp_supplicant/esp_wpa_main.c b/components/wpa_supplicant/src/esp_supplicant/esp_wpa_main.c index bbb40e9aa5..23ab60baa2 100644 --- a/components/wpa_supplicant/src/esp_supplicant/esp_wpa_main.c +++ b/components/wpa_supplicant/src/esp_supplicant/esp_wpa_main.c @@ -26,6 +26,7 @@ #include "esp_wpas_glue.h" #include "esp_hostap.h" +#include "esp_system.h" #include "crypto/crypto.h" #include "crypto/sha1.h" #include "crypto/aes_wrap.h" @@ -188,6 +189,7 @@ static void wpa_sta_disconnected_cb(uint8_t reason_code) case WIFI_REASON_AUTH_FAIL: case WIFI_REASON_ASSOC_FAIL: case WIFI_REASON_CONNECTION_FAIL: + esp_wpa3_free_sae_data(); wpa_sta_clear_curr_pmksa(); break; default: