[PATCH] Changes to make MKA actor Priority configurable
Badrish Adiga H R
badrish.adigahr at gmail.com
Sun Dec 18 10:12:25 PST 2016
These are the changes to make MKA actor Priority configurable...
From: Badrish Adiga H R <badrish.adigahr at gmail.com>
Signed-off-by: Badrish Adiga H R <badrish.adigahr at gmail.com>
---
src/pae/ieee802_1x_kay.c | 4 ++--
src/pae/ieee802_1x_kay.h | 2 +-
wpa_supplicant/config.c | 4 ++++
wpa_supplicant/config_file.c | 2 ++
wpa_supplicant/config_ssid.h | 5 +++++
wpa_supplicant/wpa_cli.c | 1 +
wpa_supplicant/wpa_supplicant.conf | 8 +++++---
wpa_supplicant/wpas_kay.c | 3 ++-
8 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/src/pae/ieee802_1x_kay.c b/src/pae/ieee802_1x_kay.c
index 1d6d9a9..819b577 100644
--- a/src/pae/ieee802_1x_kay.c
+++ b/src/pae/ieee802_1x_kay.c
@@ -3082,7 +3082,7 @@ static void kay_l2_receive(void *ctx, const u8
*src_addr, const u8 *buf,
*/
struct ieee802_1x_kay *
ieee802_1x_kay_init(struct ieee802_1x_kay_ctx *ctx, enum macsec_policy policy,
- u16 port, const char *ifname, const u8 *addr)
+ u16 port, u8 priority, const char *ifname, const u8 *addr)
{
struct ieee802_1x_kay *kay;
@@ -3105,7 +3105,7 @@ ieee802_1x_kay_init(struct ieee802_1x_kay_ctx
*ctx, enum macsec_policy policy,
os_strlcpy(kay->if_name, ifname, IFNAMSIZ);
os_memcpy(kay->actor_sci.addr, addr, ETH_ALEN);
kay->actor_sci.port = host_to_be16(port ? port : 0x0001);
- kay->actor_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
+ kay->actor_priority = priority;
/* While actor acts as a key server, shall distribute sakey */
kay->dist_kn = 1;
diff --git a/src/pae/ieee802_1x_kay.h b/src/pae/ieee802_1x_kay.h
index 9a92d1c..743c5f3 100644
--- a/src/pae/ieee802_1x_kay.h
+++ b/src/pae/ieee802_1x_kay.h
@@ -235,7 +235,7 @@ u64 mka_sci_u64(struct ieee802_1x_mka_sci *sci);
struct ieee802_1x_kay *
ieee802_1x_kay_init(struct ieee802_1x_kay_ctx *ctx, enum macsec_policy policy,
- u16 port, const char *ifname, const u8 *addr);
+ u16 port, u8 priority, const char *ifname, const u8 *addr);
void ieee802_1x_kay_deinit(struct ieee802_1x_kay *kay);
struct ieee802_1x_mka_participant *
diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
index 2120a6e..5b37553 100644
--- a/wpa_supplicant/config.c
+++ b/wpa_supplicant/config.c
@@ -2127,6 +2127,7 @@ static const struct parse_data ssid_fields[] = {
{ INT_RANGE(macsec_policy, 0, 1) },
{ INT_RANGE(macsec_integ_only, 0, 1) },
{ INT_RANGE(macsec_port, 1, 65534) },
+ { INT_RANGE(mka_priority, 0, 255) },
{ FUNC_KEY(mka_cak) },
{ FUNC_KEY(mka_ckn) },
#endif /* CONFIG_MACSEC */
@@ -2617,6 +2618,9 @@ void wpa_config_set_network_defaults(struct
wpa_ssid *ssid)
#ifdef CONFIG_IEEE80211W
ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
#endif /* CONFIG_IEEE80211W */
+#ifdef CONFIG_MACSEC
+ ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
+#endif /* CONFIG_MACSEC */
ssid->mac_addr = -1;
}
diff --git a/wpa_supplicant/config_file.c b/wpa_supplicant/config_file.c
index b9b1d4d..24d99a7 100644
--- a/wpa_supplicant/config_file.c
+++ b/wpa_supplicant/config_file.c
@@ -22,6 +22,7 @@
#include "p2p/p2p.h"
#include "eap_peer/eap_methods.h"
#include "eap_peer/eap.h"
+#include "common/ieee802_1x_defs.h"
static int newline_terminated(const char *buf, size_t buflen)
@@ -813,6 +814,7 @@ static void wpa_config_write_network(FILE *f,
struct wpa_ssid *ssid)
write_mka_ckn(f, ssid);
INT(macsec_integ_only);
INT(macsec_port);
+ INT_DEF(mka_priority, DEFAULT_PRIO_NOT_KEY_SERVER);
#endif /* CONFIG_MACSEC */
#ifdef CONFIG_HS20
INT(update_identifier);
diff --git a/wpa_supplicant/config_ssid.h b/wpa_supplicant/config_ssid.h
index fe0f7fa..d64ab01 100644
--- a/wpa_supplicant/config_ssid.h
+++ b/wpa_supplicant/config_ssid.h
@@ -751,6 +751,11 @@ struct wpa_ssid {
int macsec_port;
/**
+ * mka_priority - Priority of MKA Actor
+ */
+ int mka_priority;
+
+ /**
* mka_ckn - MKA pre-shared CKN
*/
#define MACSEC_CKN_LEN 32
diff --git a/wpa_supplicant/wpa_cli.c b/wpa_supplicant/wpa_cli.c
index f11028a..21adc17 100644
--- a/wpa_supplicant/wpa_cli.c
+++ b/wpa_supplicant/wpa_cli.c
@@ -1392,6 +1392,7 @@ static const char *network_fields[] = {
"macsec_policy",
"macsec_integ_only",
"macsec_port",
+ "mka_priority",
#endif /* CONFIG_MACSEC */
#ifdef CONFIG_HS20
"update_identifier",
diff --git a/wpa_supplicant/wpa_supplicant.conf
b/wpa_supplicant/wpa_supplicant.conf
index edb230d..4bd6d71 100644
--- a/wpa_supplicant/wpa_supplicant.conf
+++ b/wpa_supplicant/wpa_supplicant.conf
@@ -901,13 +901,15 @@ fast_reauth=1
# Port component of the SCI
# Range: 1-65534 (default: 1)
#
-# mka_cak and mka_ckn: IEEE 802.1X/MACsec pre-shared authentication mode
+# mka_cak, mka_ckn and mka_priority: IEEE 802.1X/MACsec pre-shared key mode
# This allows to configure MACsec with a pre-shared key using a (CAK,CKN) pair.
-# In this mode, instances of wpa_supplicant can act as peers, one of
-# which will become the key server and start distributing SAKs.
+# In this mode, instances of wpa_supplicant can act as MACsec peers. The peer
+# with lower priority will become the key server and start distributing SAKs.
# mka_cak (CAK = Secure Connectivity Association Key) takes a
16-bytes (128 bit)
# hex-string (32 hex-digits)
# mka_ckn (CKN = CAK Name) takes a 32-bytes (256 bit) hex-string (64
hex-digits)
+# mka_priority (Priority of MKA Actor) is in 0..255 range with 255 being
+# default priority
#
# mixed_cell: This option can be used to configure whether so called mixed
# cells, i.e., networks that use both plaintext and encryption in the same
diff --git a/wpa_supplicant/wpas_kay.c b/wpa_supplicant/wpas_kay.c
index d3fefda..d087e00 100644
--- a/wpa_supplicant/wpas_kay.c
+++ b/wpa_supplicant/wpas_kay.c
@@ -233,7 +233,8 @@ int ieee802_1x_alloc_kay_sm(struct wpa_supplicant
*wpa_s, struct wpa_ssid *ssid)
kay_ctx->disable_transmit_sa = wpas_disable_transmit_sa;
res = ieee802_1x_kay_init(kay_ctx, policy, ssid->macsec_port,
- wpa_s->ifname, wpa_s->own_addr);
+ ssid->mka_priority, wpa_s->ifname,
+ wpa_s->own_addr);
if (res == NULL) {
os_free(kay_ctx);
return -1;
--
2.6.1.133.gf5b6079
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