Cumulative patch from commit f89c32e63f71e66d7b55e284016762b603ae02db

f89c32e Android: Fix max number of sched scan SSIDs based on driver capability
f1a5a34 binder: Implement interface add/remove methods
7b4bbb9 binder: Add binder skeletal code for Android
5914ebf Remove struct ieee80211_mgmt::u.probe_req
094e949 atheros: Do not use struct ieee80211_mgmt::u.probe_req
c01120a wpa_supplicant: Do not use struct ieee80211_mgmt::u.probe_req
e1b9962 AP: Do not use struct ieee80211_mgmt::u.probe_req
5cd317d Do not clear PMKSA entry or EAP session cache if config does not change
f933216 Revert "Assign QCA vendor command and attribute for Tx/Rx aggregation"
bde9a4e Comment out UDP/UNIX socket code from common ctrl_iface based on build
a6fbff2 Fix CONFIG_CTRL_IFACE=udp6/udp6-remote builds
0741c48 SAE: Check SHA256-PRF operation result
ea86a34 SAE: Remove dead code in FFC pwd-value derivation
87faf1f nl80211: Fix libnl-tiny build with CONFIG_LIBNL20=y
31afdd2 Use TIOCOUTQ instead of SIOCOUTQ to avoid need for linux/sockios.h
6d07e76 wlantest: Use local ETH_P_IP define instead of linux/if_ether.h
795abc8 Drop USE_KERNEL_HEADERS define
9b7cd57 Use a separate header file for Linux bridge interface definitions
c815fab Use own header file for defining Linux VLAN kernel interface
81606ab vlan: Fix musl libc conflict with Linux kernel headers
f347429 P2P: Fix persistent group for 60 GHz networks
e868599 vlan: Move if_nametoindex() use out of vlan_init.c
7c03c08 vlan: Move ifconfig helpers to a separate file
59d6390 vlan: Move CONFIG_FULL_DYNAMIC_VLAN functionality into a separate file
0fe28dd vlan: Remove unnecessary header includes from netlink implementation
84d6755 vlan: Clean up netlink vs. ioctl API implementation
cb38bc8 vlan: Fix musl build error
954e10e Make it a bit easier to roam from 2.4 GHz to 5 GHz within ESS
585141b Fix a typo in a comment
1126c07 nl80211: Ignore deauth/disassoc event during Connect reassociation
6a5ee81 Include previous BSSID in connection request to indicate reassociation
00c3c4a nl80211: Add NL80211_ATTR_PREV_BSSID with Connect command
cbc3d6f WNM: Verify BSS TM target match against the current network profile
8854f90 mesh: Simplify wpa_auth_pmksa_set_to_sm()
32d4fe9 privsep: Fix a compiler warning on unsigned/signed comparison
2e997ee Add interface matching support with -M, guarded by CONFIG_MATCH_IFACE
45e3fc7 Find correct driver for interface additions/removals
9037702 wpa_supplicant: Fix CONFIG_IBSS_RSN=y build without CONFIG_AP=y
5ae65de wpa_supplicant: Fix p2p_group_add when UDP-based ctrl_iface is used
24bce46 FST: Fix a compiler warning
e567c58 Fix nfc_pw_token build with CONFIG_FST=y
d774c46 mesh: Use appropriate BLOCKED state duration
9f2cf23 mesh: Add support for PMKSA caching
4c522c7 PMKSA: Flush AP/mesh PMKSA cache by PMKSA_FLUSH command
b8daac1 PMKSA: Show AP/mesh PMKSA list in PMKSA command
2604edb mesh: Add MESH_PEER_ADD command
e174ef3 mesh: Add MESH_PEER_REMOVE command
f7648c8 P2P: Advertise IP Address Allocation only if it is enabled on GO
7f46ad9 BSD: Only down the interface once we are sure we can work with it
192964d Handle OSEN IE in Assoc Request info if req_ies exists
29eddc3 nl80211: Fix error path in if_indices_reason reallocation
ee298f1 nl80211: Do not add NL80211_ATTR_SMPS_MODE attribute if HT is disabled
4ca16b5 Assign QCA vendor command and attribute for Tx/Rx aggregation
64ce590 libxml2: Check for xmlDocDumpFormatMemory() error case
8b827c3 BoringSSL: Keep static analyzers happier with X509_get0_pubkey_bitstr()
42a9553 hs20-osu-client: Fix pol_upd command line parsing
ec1eae8 hs20-osu-client: Remove dead code from sub_rem command line parsing
c3dc68e Do not invalidate EAP session cache on all network block parameter changes
9231c24 wlantest: Fix bip_protect() memory allocation
c6c29be Interworking: Add credential realm to EAP-TLS identity

Change-Id: I870f325171d00fed9c4fcd82a695fe5e2efee792
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/wpa_supplicant/wpa_supplicant.c b/wpa_supplicant/wpa_supplicant.c
index 136cb58..51bb245 100644
--- a/wpa_supplicant/wpa_supplicant.c
+++ b/wpa_supplicant/wpa_supplicant.c
@@ -11,6 +11,10 @@
  */
 
 #include "includes.h"
+#ifdef CONFIG_MATCH_IFACE
+#include <net/if.h>
+#include <fnmatch.h>
+#endif /* CONFIG_MATCH_IFACE */
 
 #include "common.h"
 #include "crypto/random.h"
@@ -1642,9 +1646,11 @@
 
 	wmm_ac_clear_saved_tspecs(wpa_s);
 	wpa_s->reassoc_same_bss = 0;
+	wpa_s->reassoc_same_ess = 0;
 
 	if (wpa_s->last_ssid == ssid) {
 		wpa_dbg(wpa_s, MSG_DEBUG, "Re-association to the same ESS");
+		wpa_s->reassoc_same_ess = 1;
 		if (wpa_s->current_bss && wpa_s->current_bss == bss) {
 			wmm_ac_save_tspecs(wpa_s);
 			wpa_s->reassoc_same_bss = 1;
@@ -2059,6 +2065,7 @@
 	int wep_keys_set = 0;
 	int assoc_failed = 0;
 	struct wpa_ssid *old_ssid;
+	u8 prev_bssid[ETH_ALEN];
 #ifdef CONFIG_HT_OVERRIDES
 	struct ieee80211_ht_capabilities htcaps;
 	struct ieee80211_ht_capabilities htcaps_mask;
@@ -2092,6 +2099,7 @@
 		return;
 	}
 
+	os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN);
 	os_memset(&params, 0, sizeof(params));
 	wpa_s->reassociate = 0;
 	wpa_s->eap_expected_failure = 0;
@@ -2532,6 +2540,10 @@
 	}
 #endif /* CONFIG_P2P */
 
+	if (wpa_s->reassoc_same_ess && !is_zero_ether_addr(prev_bssid) &&
+	    wpa_s->current_ssid)
+		params.prev_bssid = prev_bssid;
+
 	ret = wpa_drv_associate(wpa_s, &params);
 	if (ret < 0) {
 		wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
@@ -3143,7 +3155,7 @@
 	struct wpa_global *global = wpa_s->global;
 
 	if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) {
-		global->drv_priv[i] = wpa_drivers[i]->global_init();
+		global->drv_priv[i] = wpa_drivers[i]->global_init(global);
 		if (global->drv_priv[i] == NULL) {
 			wpa_printf(MSG_ERROR, "Failed to initialize driver "
 				   "'%s'", wpa_drivers[i]->name);
@@ -4911,6 +4923,74 @@
 }
 
 
+#ifdef CONFIG_MATCH_IFACE
+
+/**
+ * wpa_supplicant_match_iface - Match an interface description to a name
+ * @global: Pointer to global data from wpa_supplicant_init()
+ * @ifname: Name of the interface to match
+ * Returns: Pointer to the created interface description or %NULL on failure
+ */
+struct wpa_interface * wpa_supplicant_match_iface(struct wpa_global *global,
+						  const char *ifname)
+{
+	int i;
+	struct wpa_interface *iface, *miface;
+
+	for (i = 0; i < global->params.match_iface_count; i++) {
+		miface = &global->params.match_ifaces[i];
+		if (!miface->ifname ||
+		    fnmatch(miface->ifname, ifname, 0) == 0) {
+			iface = os_zalloc(sizeof(*iface));
+			if (!iface)
+				return NULL;
+			*iface = *miface;
+			iface->ifname = ifname;
+			return iface;
+		}
+	}
+
+	return NULL;
+}
+
+
+/**
+ * wpa_supplicant_match_existing - Match existing interfaces
+ * @global: Pointer to global data from wpa_supplicant_init()
+ * Returns: 0 on success, -1 on failure
+ */
+static int wpa_supplicant_match_existing(struct wpa_global *global)
+{
+	struct if_nameindex *ifi, *ifp;
+	struct wpa_supplicant *wpa_s;
+	struct wpa_interface *iface;
+
+	ifp = if_nameindex();
+	if (!ifp) {
+		wpa_printf(MSG_ERROR, "if_nameindex: %s", strerror(errno));
+		return -1;
+	}
+
+	for (ifi = ifp; ifi->if_name; ifi++) {
+		wpa_s = wpa_supplicant_get_iface(global, ifi->if_name);
+		if (wpa_s)
+			continue;
+		iface = wpa_supplicant_match_iface(global, ifi->if_name);
+		if (iface) {
+			wpa_s = wpa_supplicant_add_iface(global, iface, NULL);
+			os_free(iface);
+			if (wpa_s)
+				wpa_s->matched = 1;
+		}
+	}
+
+	if_freenameindex(ifp);
+	return 0;
+}
+
+#endif /* CONFIG_MATCH_IFACE */
+
+
 /**
  * wpa_supplicant_add_iface - Add a new network interface
  * @global: Pointer to global data from wpa_supplicant_init()
@@ -5212,6 +5292,18 @@
 	if (params->override_ctrl_interface)
 		global->params.override_ctrl_interface =
 			os_strdup(params->override_ctrl_interface);
+#ifdef CONFIG_MATCH_IFACE
+	global->params.match_iface_count = params->match_iface_count;
+	if (params->match_iface_count) {
+		global->params.match_ifaces =
+			os_calloc(params->match_iface_count,
+				  sizeof(struct wpa_interface));
+		os_memcpy(global->params.match_ifaces,
+			  params->match_ifaces,
+			  params->match_iface_count *
+			  sizeof(struct wpa_interface));
+	}
+#endif /* CONFIG_MATCH_IFACE */
 #ifdef CONFIG_P2P
 	if (params->conf_p2p_dev)
 		global->params.conf_p2p_dev =
@@ -5291,6 +5383,11 @@
 	     eloop_sock_requeue()))
 		return -1;
 
+#ifdef CONFIG_MATCH_IFACE
+	if (wpa_supplicant_match_existing(global))
+		return -1;
+#endif
+
 	if (global->params.wait_for_monitor) {
 		for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
 			if (wpa_s->ctrl_iface && !wpa_s->p2p_mgmt)
@@ -5359,6 +5456,9 @@
 	os_free(global->params.ctrl_interface_group);
 	os_free(global->params.override_driver);
 	os_free(global->params.override_ctrl_interface);
+#ifdef CONFIG_MATCH_IFACE
+	os_free(global->params.match_ifaces);
+#endif /* CONFIG_MATCH_IFACE */
 #ifdef CONFIG_P2P
 	os_free(global->params.conf_p2p_dev);
 #endif /* CONFIG_P2P */