diff options
Diffstat (limited to 'network/hostapd/patches')
4 files changed, 0 insertions, 329 deletions
diff --git a/network/hostapd/patches/0001-AP-Silently-ignore-management-frame-from-unexpected-.patch b/network/hostapd/patches/0001-AP-Silently-ignore-management-frame-from-unexpected-.patch deleted file mode 100644 index d764a9db01..0000000000 --- a/network/hostapd/patches/0001-AP-Silently-ignore-management-frame-from-unexpected-.patch +++ /dev/null @@ -1,73 +0,0 @@ -From 8c07fa9eda13e835f3f968b2e1c9a8be3a851ff9 Mon Sep 17 00:00:00 2001 -From: Jouni Malinen <j@w1.fi> -Date: Thu, 29 Aug 2019 11:52:04 +0300 -Subject: [PATCH] AP: Silently ignore management frame from unexpected source - address - -Do not process any received Management frames with unexpected/invalid SA -so that we do not add any state for unexpected STA addresses or end up -sending out frames to unexpected destination. This prevents unexpected -sequences where an unprotected frame might end up causing the AP to send -out a response to another device and that other device processing the -unexpected response. - -In particular, this prevents some potential denial of service cases -where the unexpected response frame from the AP might result in a -connected station dropping its association. - -Signed-off-by: Jouni Malinen <j@w1.fi> ---- - src/ap/drv_callbacks.c | 13 +++++++++++++ - src/ap/ieee802_11.c | 12 ++++++++++++ - 2 files changed, 25 insertions(+) - -diff --git a/src/ap/drv_callbacks.c b/src/ap/drv_callbacks.c -index 31587685fe3b..34ca379edc3d 100644 ---- a/src/ap/drv_callbacks.c -+++ b/src/ap/drv_callbacks.c -@@ -131,6 +131,19 @@ int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, - "hostapd_notif_assoc: Skip event with no address"); - return -1; - } -+ -+ if (is_multicast_ether_addr(addr) || -+ is_zero_ether_addr(addr) || -+ os_memcmp(addr, hapd->own_addr, ETH_ALEN) == 0) { -+ /* Do not process any frames with unexpected/invalid SA so that -+ * we do not add any state for unexpected STA addresses or end -+ * up sending out frames to unexpected destination. */ -+ wpa_printf(MSG_DEBUG, "%s: Invalid SA=" MACSTR -+ " in received indication - ignore this indication silently", -+ __func__, MAC2STR(addr)); -+ return 0; -+ } -+ - random_add_randomness(addr, ETH_ALEN); - - hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211, -diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c -index c85a28db44b7..e7065372e158 100644 ---- a/src/ap/ieee802_11.c -+++ b/src/ap/ieee802_11.c -@@ -4626,6 +4626,18 @@ int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len, - fc = le_to_host16(mgmt->frame_control); - stype = WLAN_FC_GET_STYPE(fc); - -+ if (is_multicast_ether_addr(mgmt->sa) || -+ is_zero_ether_addr(mgmt->sa) || -+ os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) { -+ /* Do not process any frames with unexpected/invalid SA so that -+ * we do not add any state for unexpected STA addresses or end -+ * up sending out frames to unexpected destination. */ -+ wpa_printf(MSG_DEBUG, "MGMT: Invalid SA=" MACSTR -+ " in received frame - ignore this frame silently", -+ MAC2STR(mgmt->sa)); -+ return 0; -+ } -+ - if (stype == WLAN_FC_STYPE_BEACON) { - handle_beacon(hapd, mgmt, len, fi); - return 1; --- -2.20.1 - diff --git a/network/hostapd/patches/0001-WPS-UPnP-Do-not-allow-event-subscriptions-with-URLs-.patch b/network/hostapd/patches/0001-WPS-UPnP-Do-not-allow-event-subscriptions-with-URLs-.patch deleted file mode 100644 index 0aa8a5ea1d..0000000000 --- a/network/hostapd/patches/0001-WPS-UPnP-Do-not-allow-event-subscriptions-with-URLs-.patch +++ /dev/null @@ -1,150 +0,0 @@ -From 5b78c8f961f25f4dc22d6f2b77ddd06d712cec63 Mon Sep 17 00:00:00 2001 -From: Jouni Malinen <jouni@codeaurora.org> -Date: Wed, 3 Jun 2020 23:17:35 +0300 -Subject: [PATCH 1/3] WPS UPnP: Do not allow event subscriptions with URLs to - other networks - -The UPnP Device Architecture 2.0 specification errata ("UDA errata -16-04-2020.docx") addresses a problem with notifications being allowed -to go out to other domains by disallowing such cases. Do such filtering -for the notification callback URLs to avoid undesired connections to -external networks based on subscriptions that any device in the local -network could request when WPS support for external registrars is -enabled (the upnp_iface parameter in hostapd configuration). - -Signed-off-by: Jouni Malinen <jouni@codeaurora.org> ---- - src/wps/wps_er.c | 2 +- - src/wps/wps_upnp.c | 38 ++++++++++++++++++++++++++++++++++++-- - src/wps/wps_upnp_i.h | 3 ++- - 3 files changed, 39 insertions(+), 4 deletions(-) - -diff --git a/src/wps/wps_er.c b/src/wps/wps_er.c -index 6bded14327f8..31d2e50e4cff 100644 ---- a/src/wps/wps_er.c -+++ b/src/wps/wps_er.c -@@ -1298,7 +1298,7 @@ wps_er_init(struct wps_context *wps, const char *ifname, const char *filter) - "with %s", filter); - } - if (get_netif_info(er->ifname, &er->ip_addr, &er->ip_addr_text, -- er->mac_addr)) { -+ NULL, er->mac_addr)) { - wpa_printf(MSG_INFO, "WPS UPnP: Could not get IP/MAC address " - "for %s. Does it have IP address?", er->ifname); - wps_er_deinit(er, NULL, NULL); -diff --git a/src/wps/wps_upnp.c b/src/wps/wps_upnp.c -index 6e10e4bc0c3f..7d4b7439940e 100644 ---- a/src/wps/wps_upnp.c -+++ b/src/wps/wps_upnp.c -@@ -303,6 +303,14 @@ static void subscr_addr_free_all(struct subscription *s) - } - - -+static int local_network_addr(struct upnp_wps_device_sm *sm, -+ struct sockaddr_in *addr) -+{ -+ return (addr->sin_addr.s_addr & sm->netmask.s_addr) == -+ (sm->ip_addr & sm->netmask.s_addr); -+} -+ -+ - /* subscr_addr_add_url -- add address(es) for one url to subscription */ - static void subscr_addr_add_url(struct subscription *s, const char *url, - size_t url_len) -@@ -381,6 +389,7 @@ static void subscr_addr_add_url(struct subscription *s, const char *url, - - for (rp = result; rp; rp = rp->ai_next) { - struct subscr_addr *a; -+ struct sockaddr_in *addr = (struct sockaddr_in *) rp->ai_addr; - - /* Limit no. of address to avoid denial of service attack */ - if (dl_list_len(&s->addr_list) >= MAX_ADDR_PER_SUBSCRIPTION) { -@@ -389,6 +398,13 @@ static void subscr_addr_add_url(struct subscription *s, const char *url, - break; - } - -+ if (!local_network_addr(s->sm, addr)) { -+ wpa_printf(MSG_INFO, -+ "WPS UPnP: Ignore a delivery URL that points to another network %s", -+ inet_ntoa(addr->sin_addr)); -+ continue; -+ } -+ - a = os_zalloc(sizeof(*a) + alloc_len); - if (a == NULL) - break; -@@ -890,11 +906,12 @@ static int eth_get(const char *device, u8 ea[ETH_ALEN]) - * @net_if: Selected network interface name - * @ip_addr: Buffer for returning IP address in network byte order - * @ip_addr_text: Buffer for returning a pointer to allocated IP address text -+ * @netmask: Buffer for returning netmask or %NULL if not needed - * @mac: Buffer for returning MAC address - * Returns: 0 on success, -1 on failure - */ - int get_netif_info(const char *net_if, unsigned *ip_addr, char **ip_addr_text, -- u8 mac[ETH_ALEN]) -+ struct in_addr *netmask, u8 mac[ETH_ALEN]) - { - struct ifreq req; - int sock = -1; -@@ -920,6 +937,19 @@ int get_netif_info(const char *net_if, unsigned *ip_addr, char **ip_addr_text, - in_addr.s_addr = *ip_addr; - os_snprintf(*ip_addr_text, 16, "%s", inet_ntoa(in_addr)); - -+ if (netmask) { -+ os_memset(&req, 0, sizeof(req)); -+ os_strlcpy(req.ifr_name, net_if, sizeof(req.ifr_name)); -+ if (ioctl(sock, SIOCGIFNETMASK, &req) < 0) { -+ wpa_printf(MSG_ERROR, -+ "WPS UPnP: SIOCGIFNETMASK failed: %d (%s)", -+ errno, strerror(errno)); -+ goto fail; -+ } -+ addr = (struct sockaddr_in *) &req.ifr_netmask; -+ netmask->s_addr = addr->sin_addr.s_addr; -+ } -+ - #ifdef __linux__ - os_strlcpy(req.ifr_name, net_if, sizeof(req.ifr_name)); - if (ioctl(sock, SIOCGIFHWADDR, &req) < 0) { -@@ -1026,11 +1056,15 @@ static int upnp_wps_device_start(struct upnp_wps_device_sm *sm, char *net_if) - - /* Determine which IP and mac address we're using */ - if (get_netif_info(net_if, &sm->ip_addr, &sm->ip_addr_text, -- sm->mac_addr)) { -+ &sm->netmask, sm->mac_addr)) { - wpa_printf(MSG_INFO, "WPS UPnP: Could not get IP/MAC address " - "for %s. Does it have IP address?", net_if); - goto fail; - } -+ wpa_printf(MSG_DEBUG, "WPS UPnP: Local IP address %s netmask %s hwaddr " -+ MACSTR, -+ sm->ip_addr_text, inet_ntoa(sm->netmask), -+ MAC2STR(sm->mac_addr)); - - /* Listen for incoming TCP connections so that others - * can fetch our "xml files" from us. -diff --git a/src/wps/wps_upnp_i.h b/src/wps/wps_upnp_i.h -index e87a93232df1..6ead7b4e9a30 100644 ---- a/src/wps/wps_upnp_i.h -+++ b/src/wps/wps_upnp_i.h -@@ -128,6 +128,7 @@ struct upnp_wps_device_sm { - u8 mac_addr[ETH_ALEN]; /* mac addr of network i.f. we use */ - char *ip_addr_text; /* IP address of network i.f. we use */ - unsigned ip_addr; /* IP address of network i.f. we use (host order) */ -+ struct in_addr netmask; - int multicast_sd; /* send multicast messages over this socket */ - int ssdp_sd; /* receive discovery UPD packets on socket */ - int ssdp_sd_registered; /* nonzero if we must unregister */ -@@ -158,7 +159,7 @@ struct subscription * subscription_find(struct upnp_wps_device_sm *sm, - const u8 uuid[UUID_LEN]); - void subscr_addr_delete(struct subscr_addr *a); - int get_netif_info(const char *net_if, unsigned *ip_addr, char **ip_addr_text, -- u8 mac[ETH_ALEN]); -+ struct in_addr *netmask, u8 mac[ETH_ALEN]); - - /* wps_upnp_ssdp.c */ - void msearchreply_state_machine_stop(struct advertisement_state_machine *a); --- -2.20.1 - diff --git a/network/hostapd/patches/0002-WPS-UPnP-Fix-event-message-generation-using-a-long-U.patch b/network/hostapd/patches/0002-WPS-UPnP-Fix-event-message-generation-using-a-long-U.patch deleted file mode 100644 index c7a449e0b5..0000000000 --- a/network/hostapd/patches/0002-WPS-UPnP-Fix-event-message-generation-using-a-long-U.patch +++ /dev/null @@ -1,59 +0,0 @@ -From f7d268864a2660b7239b9a8ff5ad37faeeb751ba Mon Sep 17 00:00:00 2001 -From: Jouni Malinen <jouni@codeaurora.org> -Date: Wed, 3 Jun 2020 22:41:02 +0300 -Subject: [PATCH 2/3] WPS UPnP: Fix event message generation using a long URL - path - -More than about 700 character URL ended up overflowing the wpabuf used -for building the event notification and this resulted in the wpabuf -buffer overflow checks terminating the hostapd process. Fix this by -allocating the buffer to be large enough to contain the full URL path. -However, since that around 700 character limit has been the practical -limit for more than ten years, start explicitly enforcing that as the -limit or the callback URLs since any longer ones had not worked before -and there is no need to enable them now either. - -Signed-off-by: Jouni Malinen <jouni@codeaurora.org> ---- - src/wps/wps_upnp.c | 9 +++++++-- - src/wps/wps_upnp_event.c | 3 ++- - 2 files changed, 9 insertions(+), 3 deletions(-) - -diff --git a/src/wps/wps_upnp.c b/src/wps/wps_upnp.c -index 7d4b7439940e..ab685d52ecab 100644 ---- a/src/wps/wps_upnp.c -+++ b/src/wps/wps_upnp.c -@@ -328,9 +328,14 @@ static void subscr_addr_add_url(struct subscription *s, const char *url, - int rerr; - size_t host_len, path_len; - -- /* url MUST begin with http: */ -- if (url_len < 7 || os_strncasecmp(url, "http://", 7)) -+ /* URL MUST begin with HTTP scheme. In addition, limit the length of -+ * the URL to 700 characters which is around the limit that was -+ * implicitly enforced for more than 10 years due to a bug in -+ * generating the event messages. */ -+ if (url_len < 7 || os_strncasecmp(url, "http://", 7) || url_len > 700) { -+ wpa_printf(MSG_DEBUG, "WPS UPnP: Reject an unacceptable URL"); - goto fail; -+ } - url += 7; - url_len -= 7; - -diff --git a/src/wps/wps_upnp_event.c b/src/wps/wps_upnp_event.c -index d7e6edcc6503..08a23612f338 100644 ---- a/src/wps/wps_upnp_event.c -+++ b/src/wps/wps_upnp_event.c -@@ -147,7 +147,8 @@ static struct wpabuf * event_build_message(struct wps_event_ *e) - struct wpabuf *buf; - char *b; - -- buf = wpabuf_alloc(1000 + wpabuf_len(e->data)); -+ buf = wpabuf_alloc(1000 + os_strlen(e->addr->path) + -+ wpabuf_len(e->data)); - if (buf == NULL) - return NULL; - wpabuf_printf(buf, "NOTIFY %s HTTP/1.1\r\n", e->addr->path); --- -2.20.1 - diff --git a/network/hostapd/patches/0003-WPS-UPnP-Handle-HTTP-initiation-failures-for-events-.patch b/network/hostapd/patches/0003-WPS-UPnP-Handle-HTTP-initiation-failures-for-events-.patch deleted file mode 100644 index 9d0376043d..0000000000 --- a/network/hostapd/patches/0003-WPS-UPnP-Handle-HTTP-initiation-failures-for-events-.patch +++ /dev/null @@ -1,47 +0,0 @@ -From 85aac526af8612c21b3117dadc8ef5944985b476 Mon Sep 17 00:00:00 2001 -From: Jouni Malinen <jouni@codeaurora.org> -Date: Thu, 4 Jun 2020 21:24:04 +0300 -Subject: [PATCH 3/3] WPS UPnP: Handle HTTP initiation failures for events more - properly - -While it is appropriate to try to retransmit the event to another -callback URL on a failure to initiate the HTTP client connection, there -is no point in trying the exact same operation multiple times in a row. -Replve the event_retry() calls with event_addr_failure() for these cases -to avoid busy loops trying to repeat the same failing operation. - -These potential busy loops would go through eloop callbacks, so the -process is not completely stuck on handling them, but unnecessary CPU -would be used to process the continues retries that will keep failing -for the same reason. - -Signed-off-by: Jouni Malinen <jouni@codeaurora.org> ---- - src/wps/wps_upnp_event.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/src/wps/wps_upnp_event.c b/src/wps/wps_upnp_event.c -index 08a23612f338..c0d9e41d9a38 100644 ---- a/src/wps/wps_upnp_event.c -+++ b/src/wps/wps_upnp_event.c -@@ -294,7 +294,7 @@ static int event_send_start(struct subscription *s) - - buf = event_build_message(e); - if (buf == NULL) { -- event_retry(e, 0); -+ event_addr_failure(e); - return -1; - } - -@@ -302,7 +302,7 @@ static int event_send_start(struct subscription *s) - event_http_cb, e); - if (e->http_event == NULL) { - wpabuf_free(buf); -- event_retry(e, 0); -+ event_addr_failure(e); - return -1; - } - --- -2.20.1 - |