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BUG/MEDIUM: cli/ssl: don't store base64dec() result in the trash's length

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By convenience or laziness we used to store base64dec()'s return code
into trash.data and to compare it against 0 to check for conversion
failure, but it's now unsigned since commit 843b7cb ("MEDIUM: chunks:
make the chunk struct's fields match the buffer struct"). Let's clean
this up and test the result itself without storing it first.

No backport is needed.
This commit is contained in:
Willy Tarreau 2018-08-22 05:26:57 +02:00
parent b406b8708f
commit 1c913e4232
1 changed files with 8 additions and 6 deletions
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14
src/ssl_sock.c
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@ -8572,6 +8572,7 @@ static int cli_parse_show_tlskeys(char **args, char *payload, struct appctx *app
static int cli_parse_set_tlskeys(char **args, char *payload, struct appctx *appctx, void *private)
{
struct tls_keys_ref *ref;
int ret;
/* Expect two parameters: the filename and the new new TLS key in encoding */
if (!*args[3] || !*args[4]) {
@ -8589,14 +8590,14 @@ static int cli_parse_set_tlskeys(char **args, char *payload, struct appctx *appc
return 1;
}
trash.data = base64dec(args[4], strlen(args[4]), trash.area,
trash.size);
if (trash.data != sizeof(struct tls_sess_key)) {
ret = base64dec(args[4], strlen(args[4]), trash.area, trash.size);
if (ret != sizeof(struct tls_sess_key)) {
appctx->ctx.cli.severity = LOG_ERR;
appctx->ctx.cli.msg = "'set ssl tls-key' received invalid base64 encoded TLS key.\n";
appctx->st0 = CLI_ST_PRINT;
return 1;
}
trash.data = ret;
ssl_sock_update_tlskey_ref(ref, &trash);
appctx->ctx.cli.severity = LOG_INFO;
appctx->ctx.cli.msg = "TLS ticket key updated!\n";
@ -8610,7 +8611,7 @@ static int cli_parse_set_ocspresponse(char **args, char *payload, struct appctx
{
#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
char *err = NULL;
int i, j;
int i, j, ret;
if (!payload)
payload = args[3];
@ -8631,14 +8632,15 @@ static int cli_parse_set_ocspresponse(char **args, char *payload, struct appctx
}
payload[j] = 0;
trash.data = base64dec(payload, j, trash.area, trash.size);
if (trash.data < 0) {
ret = base64dec(payload, j, trash.area, trash.size);
if (ret < 0) {
appctx->ctx.cli.severity = LOG_ERR;
appctx->ctx.cli.msg = "'set ssl ocsp-response' received invalid base64 encoded response.\n";
appctx->st0 = CLI_ST_PRINT;
return 1;
}
trash.data = ret;
if (ssl_sock_update_ocsp_response(&trash, &err)) {
if (err) {
memprintf(&err, "%s.\n", err);