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MEDIUM: config: enumerate full list of registered "bind" keywords upon error

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When an unknown "bind" keyword is detected, dump the list of all
registered keywords. Unsupported default alternatives are also reported
as "not supported".
This commit is contained in:
Willy Tarreau 2012-09-18 18:01:17 +02:00
parent d0a895d25f
commit 8638f4850f
3 changed files with 40 additions and 2 deletions
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3
include/proto/listener.h
View File

@ -114,6 +114,9 @@ void bind_register_keywords(struct bind_kw_list *kwl);
/* Return a pointer to the bind keyword <kw>, or NULL if not found. */
struct bind_kw *bind_find_kw(const char *kw);
/* Dumps all registered "bind" keywords to the <out> string pointer. */
void bind_dump_kws(char **out);
/* allocate an bind_conf struct for a bind line, and chain it to list head <lh>.
* If <arg> is not NULL, it is duplicated into ->arg to store useful config
* information for error reporting.

17
src/cfgparse.c
View File

@ -1709,7 +1709,10 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
}
cur_arg = 2;
while (*(args[cur_arg])) {
static int bind_dumped;
struct bind_kw *kw;
char *err;
kw = bind_find_kw(args[cur_arg]);
if (kw) {
char *err = NULL;
@ -1745,8 +1748,18 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
continue;
}
Alert("parsing [%s:%d] : '%s %s' only supports the 'transparent', 'accept-proxy', 'defer-accept', 'name', 'id', 'mss', 'mode', 'uid', 'gid', 'user', 'group' and 'interface' options.\n",
file, linenum, args[0], args[1]);
err = NULL;
if (!bind_dumped) {
bind_dump_kws(&err);
indent_msg(&err, 4);
bind_dumped = 1;
}
Alert("parsing [%s:%d] : '%s %s' unknown keyword '%s'.%s%s\n",
file, linenum, args[0], args[1], args[cur_arg],
err ? " Registered keywords :" : "", err ? err : "");
free(err);
err_code |= ERR_ALERT | ERR_FATAL;
goto out;
}

22
src/listener.c
View File

@ -455,6 +455,28 @@ struct bind_kw *bind_find_kw(const char *kw)
return ret;
}
/* Dumps all registered "bind" keywords to the <out> string pointer. The
* unsupported keywords are only dumped if their supported form was not
* found.
*/
void bind_dump_kws(char **out)
{
struct bind_kw_list *kwl;
int index;
*out = NULL;
list_for_each_entry(kwl, &bind_keywords.list, list) {
for (index = 0; kwl->kw[index].kw != NULL; index++) {
if (kwl->kw[index].parse ||
bind_find_kw(kwl->kw[index].kw) == &kwl->kw[index]) {
memprintf(out, "%s%s %s\n", *out ? *out : "",
kwl->kw[index].kw,
kwl->kw[index].parse ? "" : "(not supported)");
}
}
}
}
/************************************************************************/
/* All supported ACL keywords must be declared here. */
/************************************************************************/