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Description of problem:

configuring 1des, which is not allowed, results in an NULL proposal struct, which we can't set the parentSA for.

Program received signal SIGSEGV, Segmentation fault.
oakley_alg_makedb (ai=<optimized out>, base=base@entry=0x7facadb0ba90 <oakley_sadb+80>, maxtrans=maxtrans@entry=-1)
    at /usr/src/debug/openswan-2.6.32/programs/pluto/spdb_struct.c:316
316	    gsp->parentSA = TRUE;

The simple fix (from libreswan) is oakley_alg_makedb():

+ if (gsp != NULL)
       gsp->parentSA = TRUE;


This happens because the parser allowed "des" but the code does not allow it. The parser could also be told that "des" is not a valid keyword

commit 2d0a4be2968457d58954b79b6496927cb7f157d0
Author: Paul Wouters <pwouters>
Date:   Thu May 15 15:44:01 2014 -0400

    pluto: don't die when the only loaded proposal is completely invalid

*** This bug has been marked as a duplicate of bug 1114683 ***