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[lwip-devel] [bug #54253] same LCP magic number after power-up.
From: |
Sergey A. Borshch |
Subject: |
[lwip-devel] [bug #54253] same LCP magic number after power-up. |
Date: |
Thu, 5 Jul 2018 17:23:14 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.183 Safari/537.36 Vivaldi/1.96.1147.47 |
URL:
<http://savannah.nongnu.org/bugs/?54253>
Summary: same LCP magic number after power-up.
Project: lwIP - A Lightweight TCP/IP stack
Submitted by: dushevny
Submitted on: Thu 05 Jul 2018 09:23:13 PM UTC
Category: PPP
Severity: 3 - Normal
Item Group: Change Request
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
lwIP version: git head
_______________________________________________________
Details:
magic_init() first time called from ppp_init(), which is called from
lwip_init(). If system has no RTC, sys_jiffies() returns same value in this
moment after every power-up or system reset. This value used in LCP magic
number generation after ppp_connect(), which leads to same magic number after
every restart. Subsequent magic_randomize() calls takes place in ppp_input(),
after magic number generation.
Suggestion: call magic_randomize() somewhere near start of ppp_connect() as
ppp_connect called after modem init which takes random time.
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/bugs/?54253>
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- [lwip-devel] [bug #54253] same LCP magic number after power-up.,
Sergey A. Borshch <=