diff options
Diffstat (limited to 'mdadm.h')
| -rw-r--r-- | mdadm.h | 58 |
1 files changed, 58 insertions, 0 deletions
@@ -734,6 +734,64 @@ extern void get_one_disk(int mdfd, mdu_array_info_t *ainf, mdu_disk_info_t *disk); void wait_for(char *dev, int fd); +/* + * Data structures for policy management. + * Each device can have a policy structure that lists + * various name/value pairs each possibly with a metadata associated. + * The policy list is sorted by name/value/metadata + */ +struct dev_policy { + struct dev_policy *next; + char *name; /* None of these strings are allocated. They are + * all just references to strings which are known + * to exist elsewhere. + * name and metadata can be compared by address equality. + */ + const char *metadata; + char *value; +}; + +extern char pol_act[], pol_domain[], pol_metadata[]; + +/* iterate over the sublist starting at list, having the same + * 'name' as 'list', and matching the given metadata (Where + * NULL matches anything + */ +#define pol_for_each(item, list, _metadata) \ + for (item = list; \ + item && item->name == list->name; \ + item = item->next) \ + if (!(!_metadata || !item->metadata || _metadata == item->metadata)) \ + ; else + +/* + * policy records read from mdadm are largely just name-value pairs. + * The names are constants, not strdupped + */ +struct pol_rule { + struct pol_rule *next; + char *type; /* rule_policy or rule_part */ + struct rule { + struct rule *next; + char *name; + char *value; + char *dups; /* duplicates of 'value' with a partNN appended */ + } *rule; +}; + +extern char rule_policy[], rule_part[]; +extern char rule_path[], rule_type[]; +extern char type_part[], type_disk[]; + +extern void policyline(char *line, char *type); +extern void policy_free(void); + +extern struct dev_policy *disk_policy(struct mdinfo *disk); +extern void dev_policy_free(struct dev_policy *p); + +extern void pol_new(struct dev_policy **pol, char *name, char *val, char *metadata); +extern struct dev_policy *pol_find(struct dev_policy *pol, char *name); + #if __GNUC__ < 3 struct stat64; #endif |