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* build-packet.c (build_sig_subpkt): Handle setting sig flags for certain

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subpacket types (notation, policy url, exportable, revocable).  keyedit.c
(sign_mk_attrib): Flags no longer need to be set here.

* packet.h, parse-packet.c (parse_one_sig_subpkt), build-packet.c
(build_sig_subpkt): Call parse_one_sig_subpkt to sanity check buffer
lengths before building a sig subpacket.
This commit is contained in:
David Shaw 2002-05-28 03:10:00 +00:00
parent 8d5dad0ac3
commit e4b2f8da41
5 changed files with 47 additions and 3 deletions
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11
g10/ChangeLog
View File

@ -1,3 +1,14 @@
2002-05-27 David Shaw <dshaw@jabberwocky.com>
* build-packet.c (build_sig_subpkt): Handle setting sig flags for
certain subpacket types (notation, policy url, exportable,
revocable). keyedit.c (sign_mk_attrib): Flags no longer need to
be set here.
* packet.h, parse-packet.c (parse_one_sig_subpkt), build-packet.c
(build_sig_subpkt): Call parse_one_sig_subpkt to sanity check
buffer lengths before building a sig subpacket.
2002-05-26 David Shaw <dshaw@jabberwocky.com>
* sign.c (mk_notation_and_policy): Include secret key to enable %s

34
g10/build-packet.c
View File

@ -706,6 +706,10 @@ build_sig_subpkt (PKT_signature *sig, sigsubpkttype_t type,
critical = (type & SIGSUBPKT_FLAG_CRITICAL);
type &= ~SIGSUBPKT_FLAG_CRITICAL;
/* Sanity check buffer sizes */
if(parse_one_sig_subpkt(buffer,buflen,type)<0)
BUG();
switch(type)
{
case SIGSUBPKT_NOTATION:
@ -721,6 +725,36 @@ build_sig_subpkt (PKT_signature *sig, sigsubpkttype_t type,
break;
}
/* Any special magic that needs to be done for this type so the
packet doesn't need to be reparsed? */
switch(type)
{
case SIGSUBPKT_NOTATION:
sig->flags.notation=1;
break;
case SIGSUBPKT_POLICY:
sig->flags.policy_url=1;
break;
case SIGSUBPKT_EXPORTABLE:
if(buffer[0])
sig->flags.exportable=1;
else
sig->flags.exportable=0;
break;
case SIGSUBPKT_REVOCABLE:
if(buffer[0])
sig->flags.revocable=1;
else
sig->flags.revocable=0;
break;
default:
break;
}
if( (buflen+1) >= 8384 )
nlen = 5; /* write 5 byte length header */
else if( (buflen+1) >= 192 )

2
g10/keyedit.c
View File

@ -242,13 +242,11 @@ sign_mk_attrib( PKT_signature *sig, void *opaque )
byte buf[8];
if( attrib->non_exportable ) {
sig->flags.exportable=0;
buf[0] = 0; /* not exportable */
build_sig_subpkt( sig, SIGSUBPKT_EXPORTABLE, buf, 1 );
}
if( attrib->non_revocable ) {
sig->flags.revocable=0;
buf[0] = 0; /* not revocable */
build_sig_subpkt( sig, SIGSUBPKT_REVOCABLE, buf, 1 );
}

1
g10/packet.h
View File

@ -394,6 +394,7 @@ const byte *parse_sig_subpkt ( const subpktarea_t *buffer,
const byte *parse_sig_subpkt2 ( PKT_signature *sig,
sigsubpkttype_t reqtype,
size_t *ret_n );
int parse_one_sig_subpkt( const byte *buffer, size_t n, int type );
void parse_revkeys(PKT_signature *sig);
int parse_attribute_subpkts(PKT_user_id *uid);
void make_attribute_uidname(PKT_user_id *uid);

2
g10/parse-packet.c
View File

@ -904,7 +904,7 @@ dump_sig_subpkt( int hashed, int type, int critical,
* -2 unsupported type
* -3 subpacket too short
*/
static int
int
parse_one_sig_subpkt( const byte *buffer, size_t n, int type )
{
switch( type ) {