}
}
-static char *auto_options = NULL;
+char auto_yes[] = "yes";
+char auto_no[] = "no";
+char auto_homehost[] = "homehost";
+
+static int auto_seen = 0;
void autoline(char *line)
{
char *w;
+ char *seen;
+ int super_cnt;
+ char *dflt = auto_yes;
+ int homehost = 0;
+ int i;
- if (auto_options) {
+ if (auto_seen) {
fprintf(stderr, Name ": AUTO line may only be give once."
" Subsequent lines ignored\n");
return;
}
+ /* Parse the 'auto' line creating policy statements for the 'auto' policy.
+ *
+ * The default is 'yes' but the 'auto' line might over-ride that.
+ * Words in the line are processed in order with the first
+ * match winning.
+ * word can be:
+ * +version - that version can be assembled
+ * -version - that version cannot be auto-assembled
+ * yes or +all - any other version can be assembled
+ * no or -all - no other version can be assembled.
+ * homehost - any array associated by 'homehost' to this
+ * host can be assembled.
+ *
+ * Thus:
+ * +ddf -0.90 homehost -all
+ * will auto-assemble any ddf array, no 0.90 array, and
+ * any other array (imsm, 1.x) if and only if it is identified
+ * as belonging to this host.
+ *
+ * We translate that to policy by creating 'auto=yes' when we see
+ * a '+version' line, 'auto=no' if we see '-version' before 'homehost',
+ * or 'auto=homehost' if we see '-version' after 'homehost'.
+ * When we see yes, no, +all or -all we stop an any version that hasn't
+ * been seen gets an appropriate auto= entry.
+ */
- auto_options = dl_strdup(line);
- dl_init(auto_options);
+ for (super_cnt = 0; superlist[super_cnt]; super_cnt++)
+ ;
+ seen = calloc(super_cnt, 1);
- for (w=dl_next(line); w != line ; w=dl_next(w)) {
- char *w2 = dl_strdup(w);
- dl_add(auto_options, w2);
+ for (w = dl_next(line); w != line ; w = dl_next(w)) {
+ char *val;
+
+ if (strcasecmp(w, "yes") == 0) {
+ dflt = auto_yes;
+ break;
+ }
+ if (strcasecmp(w, "no") == 0) {
+ if (homehost)
+ dflt = auto_homehost;
+ else
+ dflt = auto_no;
+ break;
+ }
+ if (strcasecmp(w, "homehost") == 0) {
+ homehost = 1;
+ continue;
+ }
+ if (w[0] == '+')
+ val = auto_yes;
+ else if (w[0] == '-') {
+ if (homehost)
+ val = auto_homehost;
+ else
+ val = auto_no;
+ } else
+ continue;
+
+ if (strcasecmp(w+1, "all") == 0) {
+ dflt = val;
+ break;
+ }
+ for (i = 0; superlist[i]; i++) {
+ const char *version = superlist[i]->name;
+ if (strcasecmp(w+1, version) == 0)
+ break;
+ /* 1 matches 1.x, 0 matches 0.90 */
+ if (version[1] == '.' &&
+ strlen(w+1) == 1 &&
+ w[1] == version[0])
+ break;
+ /* 1.anything matches 1.x */
+ if (strcmp(version, "1.x") == 0 &&
+ strncmp(w+1, "1.", 2) == 0)
+ break;
+ }
+ if (superlist[i] == NULL)
+ /* ignore this word */
+ continue;
+ if (seen[i])
+ /* already know about this metadata */
+ continue;
+ policy_add(rule_policy, pol_auto, val, pol_metadata, superlist[i]->name, NULL);
+ seen[i] = 1;
}
+ for (i = 0; i < super_cnt; i++)
+ if (!seen[i])
+ policy_add(rule_policy, pol_auto, dflt, pol_metadata, superlist[i]->name, NULL);
}
int loaded = 0;
return 0;
}
-int conf_test_metadata(const char *version, int is_homehost)
+int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost)
{
- /* Check if the given metadata version is allowed
- * to be auto-assembled.
- * The default is 'yes' but the 'auto' line might over-ride that.
- * Words in auto_options are processed in order with the first
- * match winning.
- * word can be:
- * +version - that version can be assembled
- * -version - that version cannot be auto-assembled
- * yes or +all - any other version can be assembled
- * no or -all - no other version can be assembled.
- * homehost - any array associated by 'homehost' to this
- * host can be assembled.
- *
- * Thus:
- * +ddf -0.90 homehost -all
- * will auto-assemble any ddf array, no 0.90 array, and
- * any other array (imsm, 1.x) if and only if it is identified
- * as belonging to this host.
+ /* If anyone said 'yes', that sticks.
+ * else if homehost applies, use that
+ * else if there is a 'no', say 'no'.
+ * else 'yes'.
*/
- char *w;
+ struct dev_policy *p;
+ int no=0, found_auto=0;
load_conffile();
- if (!auto_options)
- return 1;
- for (w = dl_next(auto_options); w != auto_options; w = dl_next(w)) {
- int rv;
- if (strcasecmp(w, "yes") == 0)
+
+ pol = pol_find(pol, pol_auto);
+ pol_for_each(p, pol, version) {
+ if (strcmp(p->value, "yes") == 0)
return 1;
- if (strcasecmp(w, "no") == 0)
- return 0;
- if (strcasecmp(w, "homehost") == 0) {
- if (is_homehost)
- return 1;
- else
- continue;
- }
- if (w[0] == '+')
- rv = 1;
- else if (w[0] == '-')
- rv = 0;
- else continue;
-
- if (strcasecmp(w+1, "all") == 0)
- return rv;
- if (strcasecmp(w+1, version) == 0)
- return rv;
- /* allow '0' to match version '0.90'
- * and 1 or 1.whatever to match version '1.x'
- */
- if (version[1] == '.' &&
- strlen(w+1) == 1 &&
- w[1] == version[0])
- return rv;
- if (version[1] == '.' && version[2] == 'x' &&
- strncmp(w+1, version, 2) == 0)
- return rv;
+ if (strcmp(p->value, "auto") == 0)
+ found_auto = 1;
+ if (strcmp(p->value, "no") == 0)
+ no = 1;
}
+ if (is_homehost && found_auto)
+ return 1;
+ if (no)
+ return 0;
return 1;
}
* matches devname
*/
-
while (devices && *devices) {
char patn[1024];
char *p = devices;
char *value;
};
-extern char pol_act[], pol_domain[], pol_metadata[];
+extern char pol_act[], pol_domain[], pol_metadata[], pol_auto[];
/* iterate over the sublist starting at list, having the same
* 'name' as 'list', and matching the given metadata (Where
extern char type_part[], type_disk[];
extern void policyline(char *line, char *type);
+extern void policy_add(char *type, ...);
extern void policy_free(void);
extern struct dev_policy *path_policy(char *path, char *type);
extern struct dev_policy *disk_policy(struct mdinfo *disk);
+extern struct dev_policy *devnum_policy(int dev);
extern void dev_policy_free(struct dev_policy *p);
extern void pol_new(struct dev_policy **pol, char *name, char *val, char *metadata);
extern mddev_ident_t conf_get_ident(char *dev);
extern mddev_dev_t conf_get_devs(void);
extern int conf_test_dev(char *devname);
-extern int conf_test_metadata(const char *version, int is_homehost);
+extern int conf_test_metadata(const char *version, struct dev_policy *pol, int is_homehost);
extern struct createinfo *conf_get_create_info(void);
extern void set_conffile(char *file);
extern char *conf_get_mailaddr(void);
return pol;
}
+struct dev_policy *devnum_policy(int dev)
+{
+ struct mdinfo disk;
+ disk.disk.major = major(dev);
+ disk.disk.minor = minor(dev);
+ return disk_policy(&disk);
+}
+
/*
* process policy rules read from config file.
*/
char pol_metadata[] = "metadata";
char pol_act[] = "action";
char pol_domain[] = "domain";
+char pol_auto[] = "auto";
static int try_rule(char *w, char *name, struct rule **rp)
{
else if (! try_rule(w, rule_type, &pr->rule) &&
! try_rule(w, pol_metadata, &pr->rule) &&
! try_rule(w, pol_act, &pr->rule) &&
- ! try_rule(w, pol_domain, &pr->rule))
+ ! try_rule(w, pol_domain, &pr->rule) &&
+ ! try_rule(w, pol_auto, &pr->rule))
fprintf(stderr, Name ": policy rule %s unrecognised and ignored\n",
w);
}
config_rules = pr;
}
+void policy_add(char *type, ...)
+{
+ va_list ap;
+ struct pol_rule *pr;
+ char *name, *val;
+
+ pr = malloc(sizeof(*pr));
+ pr->type = type;
+ pr->rule = NULL;
+
+ va_start(ap, type);
+ while ((name = va_arg(ap, char*)) != NULL) {
+ struct rule *r;
+
+ val = va_arg(ap, char*);
+ r = malloc(sizeof(*r));
+ r->next = pr->rule;
+ r->name = name;
+ r->value = strdup(val);
+ r->dups = NULL;
+ pr->rule = r;
+ }
+ pr->next = config_rules;
+ config_rules = pr;
+}
+
void policy_free(void)
{
while (config_rules) {
pol = pol_find(pol, pol_domain);
pol_for_each(p, pol, metadata) {
found_any = 1;
- while (dom && strcmp(dom->dom, pol->value) < 0)
+ while (dom && strcmp(dom->dom, p->value) < 0)
dom = dom->next;
- if (!dom || strcmp(dom->dom, pol->value) != 0)
+ if (!dom || strcmp(dom->dom, p->value) != 0)
return 0;
}
return found_any;