Re: [nfs-utils PATCH] conffile: add 'arg' argument to conf_remove_now()

[Steve Dickson <steved@redhat.com>]

On 1/2/25 5:41 PM, Scott Mayhew wrote:
> Commit 9350a97a added an optional 'arg' to section names, but the logic
> to remove configurations wasn't updated to check the 'arg' argument.
> This wasn't really a problem until commit 15e17993 updated
> conf_parse_line() to call conf_set() with override=1, the end result
> being that we'll only remember the last value seen for any given
> section/tag combination.
> 
> Fixes: 9350a97a ("Added an conditional argument to the Section names")
> Fixes: 15e17993 ("conffile: process config.d directory config files.")
> Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Committed... (tag: nfs-utils-2-8-3-rc1)

steved.
> ---
>   support/nfs/conffile.c | 8 +++++---
>   1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/support/nfs/conffile.c b/support/nfs/conffile.c
> index 1e9c22b5..137fac8d 100644
> --- a/support/nfs/conffile.c
> +++ b/support/nfs/conffile.c
> @@ -169,13 +169,15 @@ static void free_conftrans(struct conf_trans *ct)
>    * Insert a tag-value combination from LINE (the equal sign is at POS)
>    */
>   static int
> -conf_remove_now(const char *section, const char *tag)
> +conf_remove_now(const char *section, const char *arg, const char *tag)
>   {
>   	struct conf_binding *cb, *next;
>   
>   	cb = LIST_FIRST(&conf_bindings[conf_hash (section)]);
>   	for (; cb; cb = next) {
>   		next = LIST_NEXT(cb, link);
> +		if (arg && (cb->arg == NULL || strcasecmp(arg, cb->arg) != 0))
> +			continue;
>   		if (strcasecmp(cb->section, section) == 0
>   				&& strcasecmp(cb->tag, tag) == 0) {
>   			LIST_REMOVE(cb, link);
> @@ -217,7 +219,7 @@ conf_set_now(const char *section, const char *arg, const char *tag,
>   	struct conf_binding *node = 0;
>   
>   	if (override)
> -		conf_remove_now(section, tag);
> +		conf_remove_now(section, arg, tag);
>   	else if (conf_get_section(section, arg, tag)) {
>   		if (!is_default) {
>   			xlog(LOG_INFO, "conf_set: duplicate tag [%s]:%s, ignoring...",
> @@ -1254,7 +1256,7 @@ conf_end(int transaction, int commit)
>   						node->is_default);
>   					break;
>   				case CONF_REMOVE:
> -					conf_remove_now(node->section, node->tag);
> +					conf_remove_now(node->section, node->arg, node->tag);
>   					break;
>   				case CONF_REMOVE_SECTION:
>   					conf_remove_section_now(node->section);