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Do checks on some integers for size limits.

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This commit is contained in:
James Brister 1999-12-17 18:32:38 +00:00
parent 4239a56ab2
commit ad62ba2e70
1 changed files with 35 additions and 39 deletions
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74
lib/dns/config/confparser.y
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@ -17,7 +17,7 @@
*/ */
#if !defined(lint) && !defined(SABER) #if !defined(lint) && !defined(SABER)
static char rcsid[] = "$Id: confparser.y,v 1.31 1999/12/14 10:28:00 brister Exp $"; static char rcsid[] = "$Id: confparser.y,v 1.32 1999/12/17 18:32:38 brister Exp $";
#endif /* not lint */ #endif /* not lint */
#include <config.h> #include <config.h>
@ -45,7 +45,7 @@ static char rcsid[] = "$Id: confparser.y,v 1.31 1999/12/14 10:28:00 brister Exp
#include <dns/confparser.h> #include <dns/confparser.h>
#include <dns/confctx.h> #include <dns/confctx.h>
#include <dns/log.h> #include <dns/log.h>
#include <dns/result.h> #include <dns/result.h>
#include <dns/rdatatype.h> #include <dns/rdatatype.h>
@ -358,8 +358,7 @@ statement: include_stmt L_EOS
include_stmt: L_INCLUDE L_QSTRING include_stmt: L_INCLUDE L_QSTRING
{ {
if (isc_lex_openfile(mylexer, $2) != ISC_R_SUCCESS) { if (isc_lex_openfile(mylexer, $2) != ISC_R_SUCCESS) {
parser_error(ISC_FALSE ,"Can't open file %s", parser_error(ISC_FALSE ,"Can't open file %s", $2);
$2);
YYABORT; YYABORT;
} }
@ -382,8 +381,7 @@ options_stmt: L_OPTIONS
dns_c_ctx_optionsdelete(&currcfg->options); dns_c_ctx_optionsdelete(&currcfg->options);
} }
tmpres = dns_c_ctx_optionsnew(currcfg->mem, tmpres = dns_c_ctx_optionsnew(currcfg->mem, &currcfg->options);
&currcfg->options);
if (tmpres != ISC_R_SUCCESS) { if (tmpres != ISC_R_SUCCESS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE,
"Failed to create options structure: %s", "Failed to create options structure: %s",
@ -445,7 +443,6 @@ option: /* Empty */
| L_NAMED_XFER L_QSTRING | L_NAMED_XFER L_QSTRING
{ {
tmpres = dns_c_ctx_setnamedxfer(currcfg, $2); tmpres = dns_c_ctx_setnamedxfer(currcfg, $2);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, "Redefining named-xfer"); parser_error(ISC_FALSE, "Redefining named-xfer");
} else if (tmpres != ISC_R_SUCCESS) { } else if (tmpres != ISC_R_SUCCESS) {
@ -544,12 +541,12 @@ option: /* Empty */
{ {
tmpres = dns_c_ctx_setexpertmode(currcfg, $2); tmpres = dns_c_ctx_setexpertmode(currcfg, $2);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, "Redefining fake-iquery."); parser_error(ISC_FALSE, "Redefining expert-mode.");
} }
} }
| L_FAKE_IQUERY yea_or_nay | L_FAKE_IQUERY yea_or_nay
{ {
tmpres = dns_c_ctx_setfakeiquery(currcfg, $2); tmpres = dns_c_ctx_setfakeiquery(currcfg, ISC_FALSE);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, "Redefining fake-iquery."); parser_error(ISC_FALSE, "Redefining fake-iquery.");
} }
@ -668,8 +665,7 @@ option: /* Empty */
{ {
tmpres = dns_c_ctx_setforward(currcfg, $2); tmpres = dns_c_ctx_setforward(currcfg, $2);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE, "Redefining forward");
"Redefining forward");
} }
} }
| L_FORWARDERS { | L_FORWARDERS {
@ -690,8 +686,8 @@ option: /* Empty */
YYABORT; YYABORT;
} }
tmpres = dns_c_ctx_setforwarders(currcfg, forwarders, tmpres = dns_c_ctx_setforwarders(currcfg, ISC_FALSE,
ISC_FALSE); forwarders);
if (tmpres != ISC_R_SUCCESS) { if (tmpres != ISC_R_SUCCESS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE,
"Failed to set forwarders list."); "Failed to set forwarders list.");
@ -704,20 +700,17 @@ option: /* Empty */
{ {
if ($3 == NULL) if ($3 == NULL)
YYABORT; YYABORT;
tmpres = dns_c_ctx_setqueryacl(currcfg, tmpres = dns_c_ctx_setqueryacl(currcfg, ISC_FALSE, $3);
ISC_FALSE, $3);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, "Redefining allow-query list"); parser_error(ISC_FALSE, "Redefining allow-query list");
} else if (tmpres != ISC_R_SUCCESS) { } else if (tmpres != ISC_R_SUCCESS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE, "Failed to set allow-query");
"Failed to set allow-query");
YYABORT; YYABORT;
} }
} }
| L_ALLOW_TRANSFER L_LBRACE address_match_list L_RBRACE | L_ALLOW_TRANSFER L_LBRACE address_match_list L_RBRACE
{ {
tmpres = dns_c_ctx_settransferacl(currcfg, tmpres = dns_c_ctx_settransferacl(currcfg, ISC_FALSE, $3);
ISC_FALSE, $3);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE,
"Redefining allow-transfer list"); "Redefining allow-transfer list");
@ -729,8 +722,7 @@ option: /* Empty */
} }
| L_ALLOW_RECURSION L_LBRACE address_match_list L_RBRACE | L_ALLOW_RECURSION L_LBRACE address_match_list L_RBRACE
{ {
tmpres = dns_c_ctx_setrecursionacl(currcfg, tmpres = dns_c_ctx_setrecursionacl(currcfg, ISC_FALSE, $3);
ISC_FALSE, $3);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE,
"Redefining allow-recursion list"); "Redefining allow-recursion list");
@ -742,8 +734,7 @@ option: /* Empty */
} }
| L_SORTLIST L_LBRACE address_match_list L_RBRACE | L_SORTLIST L_LBRACE address_match_list L_RBRACE
{ {
tmpres = dns_c_ctx_setsortlist(currcfg, tmpres = dns_c_ctx_setsortlist(currcfg, ISC_FALSE, $3);
ISC_FALSE, $3);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, "Redefining sortlist."); parser_error(ISC_FALSE, "Redefining sortlist.");
} else if (tmpres != ISC_R_SUCCESS) { } else if (tmpres != ISC_R_SUCCESS) {
@ -753,8 +744,7 @@ option: /* Empty */
} }
| L_BLACKHOLE L_LBRACE address_match_list L_RBRACE | L_BLACKHOLE L_LBRACE address_match_list L_RBRACE
{ {
tmpres = dns_c_ctx_setblackhole(currcfg, tmpres = dns_c_ctx_setblackhole(currcfg, ISC_FALSE, $3);
ISC_FALSE, $3);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, "Redefining blackhole."); parser_error(ISC_FALSE, "Redefining blackhole.");
} else if (tmpres != ISC_R_SUCCESS) { } else if (tmpres != ISC_R_SUCCESS) {
@ -764,8 +754,7 @@ option: /* Empty */
} }
| L_TOPOLOGY L_LBRACE address_match_list L_RBRACE | L_TOPOLOGY L_LBRACE address_match_list L_RBRACE
{ {
tmpres = dns_c_ctx_settopology(currcfg, tmpres = dns_c_ctx_settopology(currcfg, ISC_FALSE, $3);
ISC_FALSE, $3);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, "Redefining topology."); parser_error(ISC_FALSE, "Redefining topology.");
} else if (tmpres != ISC_R_SUCCESS) { } else if (tmpres != ISC_R_SUCCESS) {
@ -902,8 +891,7 @@ option: /* Empty */
YYABORT; YYABORT;
} }
tmpres = dns_c_ctx_setstatsinterval(currcfg, tmpres = dns_c_ctx_setstatsinterval(currcfg, $2 * 60);
$2 * 60);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE,
"Redefining statistics-interval."); "Redefining statistics-interval.");
@ -939,6 +927,12 @@ option: /* Empty */
} }
| L_HEARTBEAT L_INTEGER | L_HEARTBEAT L_INTEGER
{ {
if ( int_too_big($2, 60) ) {
parser_error(ISC_FALSE,
"integer value too big: %u", $2);
YYABORT;
}
tmpres = dns_c_ctx_setheartbeat_interval(currcfg, $2 * 60); tmpres = dns_c_ctx_setheartbeat_interval(currcfg, $2 * 60);
if (tmpres == ISC_R_EXISTS) { if (tmpres == ISC_R_EXISTS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE,
@ -1137,8 +1131,7 @@ maybe_wild_addr: ip_address
$$.type.sin.sin_addr.s_addr = htonl(INADDR_ANY); $$.type.sin.sin_addr.s_addr = htonl(INADDR_ANY);
if (strcmp($1, "*") != 0) { if (strcmp($1, "*") != 0) {
parser_error(ISC_TRUE, parser_error(ISC_TRUE, "Bad ip-address. Using ``*''");
"Bad ip-address. Using ``*''");
} }
isc_mem_free(memctx, $1); isc_mem_free(memctx, $1);
@ -1786,8 +1779,7 @@ channel_opt: L_SEVERITY channel_severity { /* nothing to do */ }
tmpres = dns_c_ctx_currchannel(currcfg, &chan); tmpres = dns_c_ctx_currchannel(currcfg, &chan);
if (tmpres != ISC_R_SUCCESS) { if (tmpres != ISC_R_SUCCESS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE, "Can't get current channel.");
"Can't get current channel.");
YYABORT; YYABORT;
} }
@ -1806,8 +1798,7 @@ channel_opt: L_SEVERITY channel_severity { /* nothing to do */ }
tmpres = dns_c_ctx_currchannel(currcfg, &chan); tmpres = dns_c_ctx_currchannel(currcfg, &chan);
if (tmpres != ISC_R_SUCCESS) { if (tmpres != ISC_R_SUCCESS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE, "Can't get current channel.");
"Can't get current channel.");
YYABORT; YYABORT;
} }
@ -1827,8 +1818,7 @@ channel_opt: L_SEVERITY channel_severity { /* nothing to do */ }
tmpres = dns_c_ctx_currchannel(currcfg, &chan); tmpres = dns_c_ctx_currchannel(currcfg, &chan);
if (tmpres != ISC_R_SUCCESS) { if (tmpres != ISC_R_SUCCESS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE, "Can't get current channel.");
"Can't get current channel.");
YYABORT; YYABORT;
} }
@ -1863,8 +1853,7 @@ channel: channel_name
*/ */
tmpres = dns_c_ctx_currcategory(currcfg, &cat); tmpres = dns_c_ctx_currcategory(currcfg, &cat);
if (tmpres != ISC_R_SUCCESS) { if (tmpres != ISC_R_SUCCESS) {
parser_error(ISC_FALSE, parser_error(ISC_FALSE, "Can't get current category.");
"Can't get current category.");
YYABORT; YYABORT;
} }
@ -3741,6 +3730,13 @@ dns_c_parse_namedconf(const char *filename, isc_mem_t *mem,
isc_mem_destroy(&memctx); isc_mem_destroy(&memctx);
if (res == ISC_R_SUCCESS) {
res = dns_c_checkconfig(currcfg);
if (res != ISC_R_SUCCESS) {
dns_c_ctx_delete(&currcfg);
}
}
*configctx = currcfg; *configctx = currcfg;
callbacks = NULL; callbacks = NULL;