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If there are multiple 0x19 backsigs, take the most recent one. (from 1.4).

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add log-file and debug-level to the --gpgconf-list.
This commit is contained in:
Werner Koch 2008-04-16 08:23:23 +00:00
parent 322e879e6a
commit 18351bf8da
3 changed files with 82 additions and 28 deletions
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5
g10/ChangeLog
View File

@ -1,3 +1,8 @@
2008-04-15 David Shaw <dshaw@jabberwocky.com>
* getkey.c (merge_selfsigs_subkey): If there are multiple 0x19
backsigs, take the most recent one.
2008-04-08 Werner Koch <wk@g10code.com>
* options.h (opt): Add AKL_NODEFAULT and AKL_LOCAL.

82
g10/getkey.c
View File

@ -2081,6 +2081,26 @@ merge_selfsigs_main(KBNODE keyblock, int *r_revoked, struct revoke_info *rinfo)
}
}
/* Convert a buffer to a signature. Useful for 0x19 embedded sigs.
Caller must free the signature when they are done. */
static PKT_signature *
buf_to_sig(const byte *buf,size_t len)
{
PKT_signature *sig=xmalloc_clear(sizeof(PKT_signature));
IOBUF iobuf=iobuf_temp_with_content(buf,len);
int save_mode=set_packet_list_mode(0);
if(parse_signature(iobuf,PKT_SIGNATURE,len,sig)!=0)
{
xfree(sig);
sig=NULL;
}
set_packet_list_mode(save_mode);
iobuf_close(iobuf);
return sig;
}
static void
merge_selfsigs_subkey( KBNODE keyblock, KBNODE subnode )
@ -2187,48 +2207,74 @@ merge_selfsigs_subkey( KBNODE keyblock, KBNODE subnode )
subpk->is_valid = 1;
/* Find the first 0x19 embedded signature on our self-sig. */
/* Find the most recent 0x19 embedded signature on our self-sig. */
if(subpk->backsig==0)
{
int seq=0;
size_t n;
PKT_signature *backsig=NULL;
sigdate=0;
/* We do this while() since there may be other embedded
signatures in the future. We only want 0x19 here. */
while((p=enum_sig_subpkt(sig->hashed,
SIGSUBPKT_SIGNATURE,&n,&seq,NULL)))
if(n>3 && ((p[0]==3 && p[2]==0x19) || (p[0]==4 && p[1]==0x19)))
break;
if(p==NULL)
{
PKT_signature *tempsig=buf_to_sig(p,n);
if(tempsig)
{
if(tempsig->timestamp>sigdate)
{
if(backsig)
free_seckey_enc(backsig);
backsig=tempsig;
sigdate=backsig->timestamp;
}
else
free_seckey_enc(tempsig);
}
}
seq=0;
/* It is safe to have this in the unhashed area since the
0x19 is located on the selfsig for convenience, not
security. */
/* It is safe to have this in the unhashed area since the 0x19
is located on the selfsig for convenience, not security. */
while((p=enum_sig_subpkt(sig->unhashed,SIGSUBPKT_SIGNATURE,
&n,&seq,NULL)))
if(n>3 && ((p[0]==3 && p[2]==0x19) || (p[0]==4 && p[1]==0x19)))
break;
{
PKT_signature *tempsig=buf_to_sig(p,n);
if(tempsig)
{
if(tempsig->timestamp>sigdate)
{
if(backsig)
free_seckey_enc(backsig);
backsig=tempsig;
sigdate=backsig->timestamp;
}
else
free_seckey_enc(tempsig);
}
}
if(p)
if(backsig)
{
PKT_signature *backsig=xmalloc_clear(sizeof(PKT_signature));
IOBUF backsig_buf=iobuf_temp_with_content(p,n);
int save_mode=set_packet_list_mode(0);
/* At ths point, backsig contains the most recent 0x19 sig.
Let's see if it is good. */
if(parse_signature(backsig_buf,PKT_SIGNATURE,n,backsig)==0)
{
/* 2==valid, 1==invalid, 0==didn't check */
if(check_backsig(mainpk,subpk,backsig)==0)
subpk->backsig=2;
else
subpk->backsig=1;
}
set_packet_list_mode(save_mode);
iobuf_close(backsig_buf);
free_seckey_enc(backsig);
}
}

3
g10/gpg.c
View File

@ -1552,6 +1552,9 @@ gpgconf_list (const char *configfile)
printf ("encrypt-to:%lu:\n", GC_OPT_FLAG_NONE);
printf ("auto-key-locate:%lu:\n", GC_OPT_FLAG_NONE);
printf ("allow-pka-lookup:%lu:\n", GC_OPT_FLAG_NONE);
printf ("log-file:%lu:\n", GC_OPT_FLAG_NONE);
printf ("debug-level:%lu:\"none:\n", GC_OPT_FLAG_DEFAULT);
xfree (configfile_esc);
}