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author Patrick J Volkerding <volkerdi@slackware.com>2018-05-25 23:29:36 +0000
committer Eric Hameleers <alien@slackware.com>2018-05-31 15:18:32 -0700
commit8ff4f2f51a6cf07fc33742ce3bee81328896e49b (patch)
tree4a166b8389404be98a6c098babaa444e2dec8f48 /patches/source/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch
parent76fc4757ac91ac7947a01fb7b53dddf9a78a01d1 (diff)
downloadcurrent-14.1.tar.gz
current-14.1.tar.xz
Fri May 25 23:29:36 UTC 201814.1
patches/packages/glibc-zoneinfo-2018e-noarch-2_slack14.1.txz: Rebuilt. Handle removal of US/Pacific-New timezone. If we see that the machine is using this, it will be automatically switched to US/Pacific.
Diffstat (limited to 'patches/source/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch')
-rw-r--r--patches/source/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch64
1 files changed, 64 insertions, 0 deletions
diff --git a/patches/source/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch b/patches/source/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch
new file mode 100644
index 00000000..c19c4c71
--- /dev/null
+++ b/patches/source/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch
@@ -0,0 +1,64 @@
+From 12fac09b437a1dc8a0f253e265934a8aaf4d2f8b Mon Sep 17 00:00:00 2001
+From: Jouni Malinen <j@w1.fi>
+Date: Sun, 1 Oct 2017 12:32:57 +0300
+Subject: [PATCH 5/8] Fix PTK rekeying to generate a new ANonce
+
+The Authenticator state machine path for PTK rekeying ended up bypassing
+the AUTHENTICATION2 state where a new ANonce is generated when going
+directly to the PTKSTART state since there is no need to try to
+determine the PMK again in such a case. This is far from ideal since the
+new PTK would depend on a new nonce only from the supplicant.
+
+Fix this by generating a new ANonce when moving to the PTKSTART state
+for the purpose of starting new 4-way handshake to rekey PTK.
+
+Signed-off-by: Jouni Malinen <j@w1.fi>
+---
+ src/ap/wpa_auth.c | 24 +++++++++++++++++++++---
+ 1 file changed, 21 insertions(+), 3 deletions(-)
+
+diff --git a/src/ap/wpa_auth.c b/src/ap/wpa_auth.c
+index 707971d..bf10cc1 100644
+--- a/src/ap/wpa_auth.c
++++ b/src/ap/wpa_auth.c
+@@ -1901,6 +1901,21 @@ SM_STATE(WPA_PTK, AUTHENTICATION2)
+ }
+
+
++static int wpa_auth_sm_ptk_update(struct wpa_state_machine *sm)
++{
++ if (random_get_bytes(sm->ANonce, WPA_NONCE_LEN)) {
++ wpa_printf(MSG_ERROR,
++ "WPA: Failed to get random data for ANonce");
++ sm->Disconnect = TRUE;
++ return -1;
++ }
++ wpa_hexdump(MSG_DEBUG, "WPA: Assign new ANonce", sm->ANonce,
++ WPA_NONCE_LEN);
++ sm->TimeoutCtr = 0;
++ return 0;
++}
++
++
+ SM_STATE(WPA_PTK, INITPMK)
+ {
+ u8 msk[2 * PMK_LEN];
+@@ -2458,9 +2473,12 @@ SM_STEP(WPA_PTK)
+ SM_ENTER(WPA_PTK, AUTHENTICATION);
+ else if (sm->ReAuthenticationRequest)
+ SM_ENTER(WPA_PTK, AUTHENTICATION2);
+- else if (sm->PTKRequest)
+- SM_ENTER(WPA_PTK, PTKSTART);
+- else switch (sm->wpa_ptk_state) {
++ else if (sm->PTKRequest) {
++ if (wpa_auth_sm_ptk_update(sm) < 0)
++ SM_ENTER(WPA_PTK, DISCONNECTED);
++ else
++ SM_ENTER(WPA_PTK, PTKSTART);
++ } else switch (sm->wpa_ptk_state) {
+ case WPA_PTK_INITIALIZE:
+ break;
+ case WPA_PTK_DISCONNECT:
+--
+2.7.4
+