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authorPatrick J Volkerding <volkerdi@slackware.com>2018-05-28 19:12:29 +0000
committerEric Hameleers <alien@slackware.com>2018-05-31 23:39:35 +0200
commit646a5c1cbfd95873950a87b5f75d52073a967023 (patch)
treeb8b8d2ab3b0d432ea69ad1a64d1c789649d65020 /source/n/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch
parentd31c50870d0bee042ce660e445c9294a59a3a65b (diff)
downloadcurrent-646a5c1cbfd95873950a87b5f75d52073a967023.tar.gz
Mon May 28 19:12:29 UTC 201820180528191229
a/pkgtools-15.0-noarch-13.txz: Rebuilt. installpkg: default line length for --terselength is the number of columns. removepkg: added --terse mode. upgradepkg: default line length for --terselength is the number of columns. upgradepkg: accept -option in addition to --option. ap/vim-8.1.0026-x86_64-1.txz: Upgraded. d/bison-3.0.5-x86_64-1.txz: Upgraded. e/emacs-26.1-x86_64-1.txz: Upgraded. kde/kopete-4.14.3-x86_64-8.txz: Rebuilt. Recompiled against libidn-1.35. n/conntrack-tools-1.4.5-x86_64-1.txz: Upgraded. n/libnetfilter_conntrack-1.0.7-x86_64-1.txz: Upgraded. n/libnftnl-1.1.0-x86_64-1.txz: Upgraded. n/links-2.16-x86_64-2.txz: Rebuilt. Rebuilt to enable X driver for -g mode. n/lynx-2.8.9dev.19-x86_64-1.txz: Upgraded. n/nftables-0.8.5-x86_64-1.txz: Upgraded. n/p11-kit-0.23.11-x86_64-1.txz: Upgraded. n/ulogd-2.0.7-x86_64-1.txz: Upgraded. n/whois-5.3.1-x86_64-1.txz: Upgraded. xap/network-manager-applet-1.8.12-x86_64-1.txz: Upgraded. xap/vim-gvim-8.1.0026-x86_64-1.txz: Upgraded.
Diffstat (limited to 'source/n/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch')
-rw-r--r--source/n/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/source/n/wpa_supplicant/2017-1/rebased-v2.6-0005-Fix-PTK-rekeying-to-generate-a-new-ANonce.patch b/source/n/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/source/n/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
+