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#551 ipf.conf address structure not properly zero filled

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Approved by:	glebius (mentor)
Obtained from:	ipfilter CVS repo (r1.37), netbsd CVS repo (r1.3)
This commit is contained in:
Cy Schubert 2014-09-22 16:13:38 +00:00
parent 01991654f8
commit 8a07b9a5c4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=271974
1 changed files with 21 additions and 11 deletions
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32
contrib/ipfilter/tools/ipf_y.y
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@ -1020,12 +1020,13 @@ addr: pool '/' YY_NUMBER { pooled = 1;
yyexpectaddr = 0; }
;
ipaddr: IPFY_ANY { bzero(&($$), sizeof($$));
ipaddr: IPFY_ANY { memset(&($$), 0, sizeof($$));
$$.type = FRI_NORMAL;
$$.ifpos = -1;
yyexpectaddr = 0;
}
| hostname { $$.a = $1.adr;
| hostname { memset(&($$), 0, sizeof($$));
$$.a = $1.adr;
$$.f = $1.f;
if ($1.f == AF_INET6)
fill6bits(128, $$.m.i6);
@ -1038,7 +1039,8 @@ ipaddr: IPFY_ANY { bzero(&($$), sizeof($$));
| hostname { yyresetdict(); }
maskspace { yysetdict(maskwords);
yyexpectaddr = 2; }
ipmask { ntomask($1.f, $5, $$.m.i6);
ipmask { memset(&($$), 0, sizeof($$));
ntomask($1.f, $5, $$.m.i6);
$$.a = $1.adr;
$$.a.i6[0] &= $$.m.i6[0];
$$.a.i6[1] &= $$.m.i6[1];
@ -1060,7 +1062,8 @@ ipaddr: IPFY_ANY { bzero(&($$), sizeof($$));
yyresetdict();
yyexpectaddr = 0;
}
| '(' YY_STR ')' { $$.type = FRI_DYNAMIC;
| '(' YY_STR ')' { memset(&($$), 0, sizeof($$));
$$.type = FRI_DYNAMIC;
ifpflag = FRI_DYNAMIC;
$$.ifpos = addname(&fr, $2);
$$.lif = 0;
@ -1068,7 +1071,8 @@ ipaddr: IPFY_ANY { bzero(&($$), sizeof($$));
| '(' YY_STR ')' '/'
{ ifpflag = FRI_DYNAMIC; yysetdict(maskwords); }
maskopts
{ $$.type = ifpflag;
{ memset(&($$), 0, sizeof($$));
$$.type = ifpflag;
$$.ifpos = addname(&fr, $2);
$$.lif = 0;
if (frc->fr_family == AF_UNSPEC)
@ -1083,7 +1087,8 @@ ipaddr: IPFY_ANY { bzero(&($$), sizeof($$));
| '(' YY_STR ':' YY_NUMBER ')' '/'
{ ifpflag = FRI_DYNAMIC; yysetdict(maskwords); }
maskopts
{ $$.type = ifpflag;
{ memset(&($$), 0, sizeof($$));
$$.type = ifpflag;
$$.ifpos = addname(&fr, $2);
$$.lif = $4;
if (frc->fr_family == AF_UNSPEC)
@ -1142,30 +1147,35 @@ maskopts:
;
hostname:
ipv4 { $$.adr.in4 = $1;
ipv4 { memset(&($$), 0, sizeof($$));
$$.adr.in4 = $1;
if (frc->fr_family == AF_INET6)
YYERROR;
$$.f = AF_INET;
yyexpectaddr = 2;
}
| YY_NUMBER { if (frc->fr_family == AF_INET6)
| YY_NUMBER { memset(&($$), 0, sizeof($$));
if (frc->fr_family == AF_INET6)
YYERROR;
$$.adr.in4_addr = $1;
$$.f = AF_INET;
yyexpectaddr = 2;
}
| YY_HEX { if (frc->fr_family == AF_INET6)
| YY_HEX { memset(&($$), 0, sizeof($$));
if (frc->fr_family == AF_INET6)
YYERROR;
$$.adr.in4_addr = $1;
$$.f = AF_INET;
yyexpectaddr = 2;
}
| YY_STR { if (lookuphost($1, &$$.adr) == 0)
| YY_STR { memset(&($$), 0, sizeof($$));
if (lookuphost($1, &$$.adr) == 0)
$$.f = AF_INET;
free($1);
yyexpectaddr = 2;
}
| YY_IPV6 { if (frc->fr_family == AF_INET)
| YY_IPV6 { memset(&($$), 0, sizeof($$));
if (frc->fr_family == AF_INET)
YYERROR;
$$.adr = $1;
$$.f = AF_INET6;