static int netlink_container_parse(sd_netlink_message *m,
struct netlink_container *container,
int count,
struct rtattr *rta,
unsigned int rt_len) {
_cleanup_free_ struct netlink_attribute *attributes = NULL;
attributes = new0(struct netlink_attribute, count);
if(!attributes)
return -ENOMEM;
for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) {
unsigned short type;
type = RTA_TYPE(rta);
/* if the kernel is newer than the headers we used
when building, we ignore out-of-range attributes */
if (type >= count)
continue;
if (attributes[type].offset)
log_debug("rtnl: message parse - overwriting repeated attribute");
attributes[type].offset = (uint8_t *) rta - (uint8_t *) m->hdr;
attributes[type].nested = RTA_FLAGS(rta) & NLA_F_NESTED;
attributes[type].net_byteorder = RTA_FLAGS(rta) & NLA_F_NET_BYTEORDER;
}
container->attributes = attributes;
attributes = NULL;
container->n_attributes = count;
return 0;
}
int rtnl_message_parse(sd_rtnl_message *m,
size_t **rta_offset_tb,
unsigned short *rta_tb_size,
int max,
struct rtattr *rta,
unsigned int rt_len) {
unsigned short type;
size_t *tb;
tb = new0(size_t, max + 1);
if(!tb)
return -ENOMEM;
*rta_tb_size = max + 1;
for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) {
type = RTA_TYPE(rta);
/* if the kernel is newer than the headers we used
when building, we ignore out-of-range attributes
*/
if (type > max)
continue;
if (tb[type])
log_debug("rtnl: message parse - overwriting repeated attribute");
tb[type] = (uint8_t *) rta - (uint8_t *) m->hdr;
}
*rta_offset_tb = tb;
return 0;
}
