}
-bool fw3_has_state(void)
+struct list_head *
+fw3_read_statefile(void)
{
- struct stat s;
- return !stat(FW3_STATEFILE, &s);
+ FILE *sf;
+
+ int n;
+ char line[128];
+ const char *p;
+
+ struct list_head *state;
+ struct fw3_statefile_entry *entry;
+
+ sf = fopen(FW3_STATEFILE, "r");
+
+ if (!sf)
+ return NULL;
+
+ state = malloc(sizeof(*state));
+
+ if (!state)
+ return NULL;
+
+ INIT_LIST_HEAD(state);
+
+ while (fgets(line, sizeof(line), sf))
+ {
+ entry = malloc(sizeof(*entry));
+
+ if (!entry)
+ continue;
+
+ memset(entry, 0, sizeof(*entry));
+
+ p = strtok(line, " \t\n");
+
+ if (!p)
+ continue;
+
+ entry->type = strtoul(p, NULL, 10);
+
+ p = strtok(NULL, " \t\n");
+
+ if (!p)
+ continue;
+
+ entry->name = strdup(p);
+
+ for (n = 0, p = strtok(NULL, " \t\n");
+ n < ARRAY_SIZE(entry->flags) && p != NULL;
+ n++, p = strtok(NULL, " \t\n"))
+ {
+ entry->flags[n] = strtoul(p, NULL, 10);
+ }
+
+ list_add_tail(&entry->list, state);
+ }
+
+ fclose(sf);
+
+ return state;
}
-void fw3_write_state(void *state)
+void
+fw3_write_statefile(void *state)
{
- int fd;
+ FILE *sf;
struct fw3_state *s = state;
+ struct fw3_defaults *d = &s->defaults;
struct fw3_zone *z;
struct fw3_ipset *i;
- fd = open(FW3_STATEFILE, O_CREAT|O_EXCL|O_WRONLY, S_IRUSR|S_IWUSR);
+ int mask = (1 << FW3_DEFAULT_IPV4_LOADED) | (1 << FW3_DEFAULT_IPV6_LOADED);
- if (fd < 0)
+ if (!(d->flags & mask))
+ {
+ if (unlink(FW3_STATEFILE))
+ warn("Unable to remove state %s: %s",
+ FW3_STATEFILE, strerror(errno));
+
+ return;
+ }
+
+ sf = fopen(FW3_STATEFILE, "w");
+
+ if (!sf)
{
warn("Cannot create state %s: %s", FW3_STATEFILE, strerror(errno));
return;
}
+ fprintf(sf, "%u - %u\n", FW3_TYPE_DEFAULTS, d->flags);
+
list_for_each_entry(z, &s->zones, list)
{
- write(fd, "zone ", 5);
- write(fd, z->name, strlen(z->name));
- write(fd, "\n", 1);
+ fprintf(sf, "%u %s %u %u\n", FW3_TYPE_ZONE,
+ z->name, z->src_flags, z->dst_flags);
}
list_for_each_entry(i, &s->ipsets, list)
if (i->external && *i->external)
continue;
- write(fd, "ipset ", 6);
- write(fd, i->name, strlen(i->name));
- write(fd, "\n", 1);
+ fprintf(sf, "%u %s\n", FW3_TYPE_IPSET, i->name);
}
- close(fd);
+ fclose(sf);
}
-void fw3_remove_state(void)
+void
+fw3_free_statefile(struct list_head *statefile)
{
- if (unlink(FW3_STATEFILE))
- warn("Unable to remove state %s: %s", FW3_STATEFILE, strerror(errno));
+ struct fw3_statefile_entry *e, *tmp;
+
+ if (!statefile)
+ return;
+
+ list_for_each_entry_safe(e, tmp, statefile, list)
+ {
+ list_del(&e->list);
+ free(e->name);
+ free(e);
+ }
+
+ free(statefile);
}