[Cluster-devel] [PATCH] cman: fix handling of transport="xxx" in cman/totem preconfig

[Jan Friesse <jfriesse@redhat.com>]

Reviewed-by: Jan Friesse <jfriesse@redhat.com>

Fabio M. Di Nitto napsal(a):
> and address a memory corruption when broadcast="" is set.
> 
> Resolves: rhbz#695795
> 
> Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>
> ---
>  cman/daemon/cman-preconfig.c |   12 +++++++++---
>  1 files changed, 9 insertions(+), 3 deletions(-)
> 
> diff --git a/cman/daemon/cman-preconfig.c b/cman/daemon/cman-preconfig.c
> index 070761e..0f5f937 100644
> --- a/cman/daemon/cman-preconfig.c
> +++ b/cman/daemon/cman-preconfig.c
> @@ -283,6 +283,7 @@ static int add_ifaddr(struct objdb_iface_ver0 *objdb, char *mcast, char *ifaddr,
>  	hdb_handle_t interface_object_handle;
>  	struct sockaddr_storage if_addr, localhost, mcast_addr;
>  	char tmp[132];
> +	char *transportstr;
>  	int ret = 0;
>  	const char *tx_mech_to_str[] = {
>  		[TX_MECH_UDP] = "udp",
> @@ -309,11 +310,17 @@ static int add_ifaddr(struct objdb_iface_ver0 *objdb, char *mcast, char *ifaddr,
>  	if (objdb->object_find_next(find_handle, &totem_object_handle)) {
>  		objdb->object_create(OBJECT_PARENT_HANDLE, &totem_object_handle,
>  				     "totem", strlen("totem"));
> -		objdb->object_key_create_typed(totem_object_handle, "transport",
> -			tx_mech_to_str[transport], strlen(tx_mech_to_str[transport]) + 1, OBJDB_VALUETYPE_STRING);
>          }
>  	objdb->object_find_destroy(find_handle);
>  
> +	if (objdb_get_string(objdb, totem_object_handle, "transport", &transportstr)) {
> +		objdb->object_key_create_typed(totem_object_handle, "transport",
> +			tx_mech_to_str[transport], strlen(tx_mech_to_str[transport]) + 1, OBJDB_VALUETYPE_STRING);
> +	} else {
> +		sprintf(error_reason, "Transport should not be specified within <totem .../>, use <cman transport=\"...\" /> instead");
> +		return -1;
> +	}
> +
>  	if (objdb->object_create(totem_object_handle, &interface_object_handle,
>  				 "interface", strlen("interface")) == 0) {
>  		struct sockaddr_in *in = (struct sockaddr_in *)&if_addr;
> @@ -709,7 +716,6 @@ static int get_nodename(struct objdb_iface_ver0 *objdb)
>  				return -1;
>  			transport = TX_MECH_UDPB;
>  		}
> -		free(str);
>  	}
>  
>  	/* Check for transport */