X-Git-Url: http://git.archive.openwrt.org/?p=project%2Ffirewall3.git;a=blobdiff_plain;f=utils.c;h=0094ae7b3a49e926e2764ff3fe116080a95904d5;hp=9b383a35a414e764cad51a2b8d833deb3bb66b0d;hb=2fbd2c5618e1d4edc103d5472a95aad6e6aa659f;hpb=61cc1d220c95168faf24bececc752a5af7ce6431

diff --git a/utils.c b/utils.c
index 9b383a3..0094ae7 100644
--- a/utils.c
+++ b/utils.c
@@ -244,6 +244,7 @@ __fw3_command_pipe(bool silent, const char *command, ...)
 		signal(SIGPIPE, SIG_IGN);
 		pipe_pid = pid;
 		close(pfds[0]);
+		fcntl(pfds[1], F_SETFD, fcntl(pfds[1], F_GETFD) | FD_CLOEXEC);
 	}
 
 	pipe_fd = fdopen(pfds[1], "w");
@@ -347,89 +348,142 @@ fw3_unlock(void)
 }
 
 
-bool
-fw3_read_statefile(void *state)
+static void
+write_defaults_uci(struct uci_context *ctx, struct fw3_defaults *d,
+                   struct uci_package *dest)
 {
-	FILE *sf;
+	char buf[sizeof("0xffffffff\0")];
+	struct uci_ptr ptr = { .p = dest };
+
+	uci_add_section(ctx, dest, "defaults", &ptr.s);
+
+	sprintf(buf, "0x%x", d->flags[0]);
+	ptr.o      = NULL;
+	ptr.option = "__flags_v4";
+	ptr.value  = buf;
+	uci_set(ctx, &ptr);
+
+	sprintf(buf, "0x%x", d->flags[1]);
+	ptr.o      = NULL;
+	ptr.option = "__flags_v6";
+	ptr.value  = buf;
+	uci_set(ctx, &ptr);
+}
 
-	int type;
-	char line[128];
-	const char *p, *name;
+static void
+write_zone_uci(struct uci_context *ctx, struct fw3_zone *z,
+               struct uci_package *dest)
+{
+	struct fw3_device *dev;
+	struct fw3_address *sub;
+	enum fw3_family fam = FW3_FAMILY_ANY;
 
-	uint32_t flags;
+	char *p, buf[34];
 
-	struct fw3_state *s = state;
-	struct fw3_zone *zone;
-	struct fw3_ipset *ipset;
+	struct uci_ptr ptr = { .p = dest };
 
-	sf = fopen(FW3_STATEFILE, "r");
+	if (!z->enabled)
+		return;
 
-	if (!sf)
-		return false;
+	if (fw3_no_table(z->flags[0]) && !fw3_no_table(z->flags[1]))
+		fam = FW3_FAMILY_V6;
+	else if (!fw3_no_table(z->flags[0]) && fw3_no_table(z->flags[1]))
+		fam = FW3_FAMILY_V4;
+	else if (fw3_no_table(z->flags[0]) && fw3_no_table(z->flags[1]))
+		return;
 
-	while (fgets(line, sizeof(line), sf))
+	uci_add_section(ctx, dest, "zone", &ptr.s);
+
+	ptr.o      = NULL;
+	ptr.option = "name";
+	ptr.value  = z->name;
+	uci_set(ctx, &ptr);
+
+	ptr.o      = NULL;
+	ptr.option = "input";
+	ptr.value  = fw3_flag_names[z->policy_input];
+	uci_set(ctx, &ptr);
+
+	ptr.o      = NULL;
+	ptr.option = "output";
+	ptr.value  = fw3_flag_names[z->policy_output];
+	uci_set(ctx, &ptr);
+
+	ptr.o      = NULL;
+	ptr.option = "forward";
+	ptr.value  = fw3_flag_names[z->policy_forward];
+	uci_set(ctx, &ptr);
+
+	ptr.o      = NULL;
+	ptr.option = "masq";
+	ptr.value  = z->masq ? "1" : "0";
+	uci_set(ctx, &ptr);
+
+	ptr.o      = NULL;
+	ptr.option = "conntrack";
+	ptr.value  = z->conntrack ? "1" : "0";
+	uci_set(ctx, &ptr);
+
+	ptr.o      = NULL;
+	ptr.option = "mtu_fix";
+	ptr.value  = z->mtu_fix ? "1" : "0";
+	uci_set(ctx, &ptr);
+
+	ptr.o      = NULL;
+	ptr.option = "custom_chains";
+	ptr.value  = z->custom_chains ? "1" : "0";
+	uci_set(ctx, &ptr);
+
+	if (fam != FW3_FAMILY_ANY)
 	{
-		p = strtok(line, " \t\n");
-
-		if (!p)
-			continue;
-
-		type = strtoul(p, NULL, 16);
-		name = strtok(NULL, " \t\n");
-
-		if (!name)
-			continue;
+		ptr.o      = NULL;
+		ptr.option = "family";
+		ptr.value  = fw3_flag_names[fam];
+		uci_set(ctx, &ptr);
+	}
 
-		p = strtok(NULL, " \t\n");
+	ptr.o      = NULL;
+	ptr.option = "device";
 
-		if (!p)
+	fw3_foreach(dev, &z->devices)
+	{
+		if (!dev)
 			continue;
 
-		flags = strtoul(p, NULL, 16);
-
-		switch (type)
-		{
-		case FW3_TYPE_DEFAULTS:
-			s->defaults.running_flags = flags;
-			break;
-
-		case FW3_TYPE_ZONE:
-			if (!(zone = fw3_lookup_zone(state, name, false)))
-			{
-				zone = fw3_alloc_zone();
-
-				if (!zone)
-					continue;
+		p = buf;
 
-				zone->name = strdup(name);
-				list_add_tail(&zone->list, &s->zones);
-			}
+		if (dev->invert)
+			p += sprintf(p, "!");
 
-			zone->running_dst_flags = flags;
-			list_add_tail(&zone->running_list, &s->running_zones);
-			break;
+		p += sprintf(p, "%s", dev->name);
 
-		case FW3_TYPE_IPSET:
-			if (!(ipset = fw3_lookup_ipset(state, name, false)))
-			{
-				ipset = fw3_alloc_ipset();
+		ptr.value = buf;
+		uci_add_list(ctx, &ptr);
+	}
 
-				if (!ipset)
-					continue;
+	ptr.o      = NULL;
+	ptr.option = "subnet";
 
-				ipset->name = strdup(name);
-				list_add_tail(&ipset->list, &s->ipsets);
-			}
+	fw3_foreach(sub, &z->subnets)
+	{
+		if (!sub)
+			continue;
 
-			ipset->running_flags = flags;
-			list_add_tail(&ipset->running_list, &s->running_ipsets);
-			break;
-		}
+		ptr.value = fw3_address_to_string(sub, true);
+		uci_add_list(ctx, &ptr);
 	}
 
-	fclose(sf);
-
-	return true;
+	sprintf(buf, "0x%x", z->flags[0]);
+	ptr.o      = NULL;
+	ptr.option = "__flags_v4";
+	ptr.value  = buf;
+	uci_set(ctx, &ptr);
+
+	sprintf(buf, "0x%x", z->flags[1]);
+	ptr.o      = NULL;
+	ptr.option = "__flags_v6";
+	ptr.value  = buf;
+	uci_set(ctx, &ptr);
 }
 
 void
@@ -437,62 +491,46 @@ fw3_write_statefile(void *state)
 {
 	FILE *sf;
 	struct fw3_state *s = state;
-	struct fw3_defaults *d = &s->defaults;
 	struct fw3_zone *z;
-	struct fw3_ipset *i;
 
-	int mask = (1 << FW3_FAMILY_V4) | (1 << FW3_FAMILY_V6);
+	struct uci_package *p;
 
-	if (!(d->flags & mask))
+	if (fw3_no_family(s->defaults.flags[0]) &&
+	    fw3_no_family(s->defaults.flags[1]))
 	{
-		if (unlink(FW3_STATEFILE))
-			warn("Unable to remove state %s: %s",
-			     FW3_STATEFILE, strerror(errno));
-
-		return;
+		unlink(FW3_STATEFILE);
 	}
-
-	sf = fopen(FW3_STATEFILE, "w");
-
-	if (!sf)
+	else
 	{
-		warn("Cannot create state %s: %s", FW3_STATEFILE, strerror(errno));
-		return;
-	}
+		sf = fopen(FW3_STATEFILE, "w+");
 
-	fprintf(sf, "%x - %x\n", FW3_TYPE_DEFAULTS, d->flags);
+		if (!sf)
+		{
+			warn("Cannot create state %s: %s", FW3_STATEFILE, strerror(errno));
+			return;
+		}
 
-	list_for_each_entry(z, &s->running_zones, running_list)
-	{
-		fprintf(sf, "%x %s %x\n", FW3_TYPE_ZONE, z->name, z->dst_flags);
-	}
+		if ((p = uci_lookup_package(s->uci, "fw3_state")) != NULL)
+			uci_unload(s->uci, p);
 
-	list_for_each_entry(i, &s->running_ipsets, running_list)
-	{
-		fprintf(sf, "%x %s %x\n", FW3_TYPE_IPSET, i->name, i->flags);
-	}
-
-	fclose(sf);
-}
+		uci_import(s->uci, sf, "fw3_state", NULL, true);
 
+		if ((p = uci_lookup_package(s->uci, "fw3_state")) != NULL)
+		{
+			write_defaults_uci(s->uci, &s->defaults, p);
 
-struct object_list_heads
-{
-	struct list_head list;
-	struct list_head running_list;
-};
+			list_for_each_entry(z, &s->zones, list)
+				write_zone_uci(s->uci, z, p);
 
-void
-fw3_set_running(void *object, struct list_head *dest)
-{
-	struct object_list_heads *o = object;
+			uci_export(s->uci, sf, p, true);
+			uci_unload(s->uci, p);
+		}
 
-	if (dest && !o->running_list.next)
-		list_add_tail(&o->running_list, dest);
-	else if (!dest && o->running_list.next)
-		list_del(&o->running_list);
+		fclose(sf);
+	}
 }
 
+
 void
 fw3_free_object(void *obj, const void *opts)
 {
@@ -514,3 +552,80 @@ fw3_free_object(void *obj, const void *opts)
 
 	free(obj);
 }
+
+
+bool
+fw3_pr_rulespec(int table, int family, uint32_t *flags, uint32_t mask,
+                const struct fw3_rule_spec *r, const char *fmt, ...)
+{
+	char buf[256];
+	bool rv = false;
+
+	va_list ap;
+	uint32_t f = flags ? flags[family == FW3_FAMILY_V6] : 0;
+
+	if (mask)
+		f &= mask;
+
+	for (; r->format; r++)
+	{
+		if (!fw3_is_family(r, family))
+			continue;
+
+		if (r->table != table)
+			continue;
+
+		if ((r->flag != 0) && !hasbit(f, r->flag))
+			continue;
+
+		va_start(ap, fmt);
+		vsnprintf(buf, sizeof(buf), r->format, ap);
+		va_end(ap);
+
+		fw3_pr(fmt, buf);
+
+		rv = true;
+	}
+
+	return rv;
+}
+
+
+bool
+fw3_hotplug(bool add, void *zone, void *device)
+{
+	struct fw3_zone *z = zone;
+	struct fw3_device *d = device;
+
+	if (!d->network)
+		return false;
+
+	switch (fork())
+	{
+	case -1:
+		warn("Unable to fork(): %s\n", strerror(errno));
+		return false;
+
+	case 0:
+		break;
+
+	default:
+		return true;
+	}
+
+	close(0);
+	close(1);
+	close(2);
+	chdir("/");
+
+	clearenv();
+	setenv("ACTION",    add ? "add" : "remove", 1);
+	setenv("ZONE",      z->name,                1);
+	setenv("INTERFACE", d->network->name,       1);
+	setenv("DEVICE",    d->name,                1);
+
+	execl(FW3_HOTPLUG, FW3_HOTPLUG, "firewall", NULL);
+
+	/* unreached */
+	return false;
+}