X-Git-Url: http://git.archive.openwrt.org/?p=project%2Ffirewall3.git;a=blobdiff_plain;f=utils.c;h=dbc713cd36e8ff675813b6d0a5f0f7117bd293c4;hp=c3dbb3d93fc61bce6b401763d0aa76ddde9903fc;hb=eb2a20924afd979feb485298111ced679de42aa0;hpb=5b051a66fad3c208380d69b4b13d09929fcfe101

diff --git a/utils.c b/utils.c
index c3dbb3d..dbc713c 100644
--- a/utils.c
+++ b/utils.c
@@ -19,10 +19,17 @@
 #include "utils.h"
 #include "options.h"
 
+#include "zones.h"
+#include "ipsets.h"
+
+
 static int lock_fd = -1;
 static pid_t pipe_pid = -1;
 static FILE *pipe_fd = NULL;
 
+bool fw3_pr_debug = false;
+
+
 static void
 warn_elem_section_name(struct uci_section *s, bool find_name)
 {
@@ -237,6 +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");
@@ -246,10 +254,18 @@ __fw3_command_pipe(bool silent, const char *command, ...)
 void
 fw3_pr(const char *fmt, ...)
 {
-    va_list args;
-    va_start(args, fmt);
-    vfprintf(pipe_fd, fmt, args);
-    va_end(args);
+	va_list args;
+
+	if (fw3_pr_debug && pipe_fd != stdout)
+	{
+		va_start(args, fmt);
+		vfprintf(stderr, fmt, args);
+		va_end(args);
+	}
+
+	va_start(args, fmt);
+	vfprintf(pipe_fd, fmt, args);
+	va_end(args);
 }
 
 void
@@ -332,66 +348,118 @@ fw3_unlock(void)
 }
 
 
-struct list_head *
-fw3_read_statefile(void)
+bool
+fw3_read_statefile(void *state)
 {
 	FILE *sf;
 
-	int n;
+	int type;
 	char line[128];
-	const char *p;
+	const char *p, *name;
 
-	struct list_head *state;
-	struct fw3_statefile_entry *entry;
+	uint32_t flags[2];
+
+	struct fw3_state *s = state;
+	struct fw3_zone *zone;
+	struct fw3_ipset *ipset;
+	struct fw3_device *net, *dev;
 
 	sf = fopen(FW3_STATEFILE, "r");
 
 	if (!sf)
-		return NULL;
-
-	state = malloc(sizeof(*state));
-
-	if (!state)
-		return NULL;
-
-	INIT_LIST_HEAD(state);
+		return false;
 
 	while (fgets(line, sizeof(line), sf))
 	{
-		entry = malloc(sizeof(*entry));
+		p = strtok(line, " \t\n");
 
-		if (!entry)
+		if (!p)
 			continue;
 
-		memset(entry, 0, sizeof(*entry));
+		type = strtoul(p, NULL, 16);
+		name = strtok(NULL, " \t\n");
 
-		p = strtok(line, " \t\n");
-
-		if (!p)
+		if (!name)
 			continue;
 
-		entry->type = strtoul(p, NULL, 10);
+		if (!(p = strtok(NULL, " \t\n")))
+			continue;
 
-		p = strtok(NULL, " \t\n");
+		flags[0] = strtoul(p, NULL, 16);
 
-		if (!p)
+		if (!(p = strtok(NULL, " \t\n")))
 			continue;
 
-		entry->name = strdup(p);
+		flags[1] = strtoul(p, NULL, 16);
 
-		for (n = 0, p = strtok(NULL, " \t\n");
-		     n < ARRAY_SIZE(entry->flags) && p != NULL;
-		     n++, p = strtok(NULL, " \t\n"))
+		switch (type)
 		{
-			entry->flags[n] = strtoul(p, NULL, 10);
-		}
+		case FW3_TYPE_DEFAULTS:
+			s->defaults.flags[0] = flags[0];
+			s->defaults.flags[1] = flags[1];
+			break;
+
+		case FW3_TYPE_ZONE:
+			if (!(zone = fw3_lookup_zone(state, name, false)))
+			{
+				zone = fw3_alloc_zone();
+
+				if (!zone)
+					continue;
+
+				zone->name = strdup(name);
+				list_add_tail(&zone->list, &s->zones);
+			}
+
+			zone->flags[0] = flags[0];
+			zone->flags[1] = flags[1];
+			list_add_tail(&zone->running_list, &s->running_zones);
+			break;
+
+		case FW3_TYPE_IPSET:
+			if (!(ipset = fw3_lookup_ipset(state, name, false)))
+			{
+				ipset = fw3_alloc_ipset();
+
+				if (!ipset)
+					continue;
+
+				ipset->name = strdup(name);
+				list_add_tail(&ipset->list, &s->ipsets);
+			}
+
+			ipset->flags[0] = flags[0];
+			ipset->flags[1] = flags[1];
+			list_add_tail(&ipset->running_list, &s->running_ipsets);
+			break;
+
+		case FW3_TYPE_NETWORK:
+			if (!(zone = fw3_lookup_zone(state, name, false)))
+				continue;
+
+			if (!(p = strtok(NULL, " \t\n")) || !(name = strtok(NULL, " \t\n")))
+				continue;
 
-		list_add_tail(&entry->list, state);
+			if (!(net = malloc(sizeof(*net))))
+				continue;
+
+			memset(net, 0, sizeof(*net));
+			snprintf(net->name, sizeof(net->name), "%s", p);
+			list_add_tail(&net->list, &zone->running_networks);
+
+			if (!(dev = malloc(sizeof(*dev))))
+				continue;
+
+			memset(dev, 0, sizeof(*dev));
+			dev->network = net;
+			snprintf(dev->name, sizeof(dev->name), "%s", name);
+			list_add_tail(&dev->list, &zone->running_devices);
+		}
 	}
 
 	fclose(sf);
 
-	return state;
+	return true;
 }
 
 void
@@ -399,13 +467,12 @@ fw3_write_statefile(void *state)
 {
 	FILE *sf;
 	struct fw3_state *s = state;
-	struct fw3_defaults *d = &s->defaults;
+	struct fw3_defaults *defs = &s->defaults;
 	struct fw3_zone *z;
 	struct fw3_ipset *i;
+	struct fw3_device *d;
 
-	int mask = (1 << FW3_DEFAULT_IPV4_LOADED) | (1 << FW3_DEFAULT_IPV6_LOADED);
-
-	if (!(d->has_flag & mask))
+	if (fw3_no_table(defs->flags[0]) && fw3_no_table(defs->flags[1]))
 	{
 		if (unlink(FW3_STATEFILE))
 			warn("Unable to remove state %s: %s",
@@ -422,39 +489,152 @@ fw3_write_statefile(void *state)
 		return;
 	}
 
-	fprintf(sf, "%u - %u\n", FW3_TYPE_DEFAULTS, d->has_flag);
+	fprintf(sf, "%x - %x %x\n",
+	        FW3_TYPE_DEFAULTS, defs->flags[0], defs->flags[1]);
+
+	list_for_each_entry(z, &s->running_zones, running_list)
+	{
+		if (fw3_no_table(z->flags[0]) && fw3_no_table(z->flags[1]))
+			continue;
+
+		fprintf(sf, "%x %s %x %x\n",
+		        FW3_TYPE_ZONE, z->name, z->flags[0], z->flags[1]);
+
+		list_for_each_entry(d, &z->devices, list)
+		{
+			if (!d->network)
+				continue;
+
+			fprintf(sf, "%x %s 0 0 %s %s\n",
+			        FW3_TYPE_NETWORK, z->name, d->network->name, d->name);
+		}
+	}
+
+	list_for_each_entry(i, &s->running_ipsets, running_list)
+	{
+		if (!fw3_no_family(i->flags[0]) || !fw3_no_family(i->flags[1]))
+		{
+			fprintf(sf, "%x %s %x %x\n",
+					FW3_TYPE_IPSET, i->name, i->flags[0], i->flags[1]);
+		}
+	}
+
+	fclose(sf);
+}
+
+
+struct object_list_heads
+{
+	struct list_head list;
+	struct list_head running_list;
+};
+
+void
+fw3_set_running(void *object, struct list_head *dest)
+{
+	struct object_list_heads *o = object;
+
+	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);
+}
+
+void
+fw3_free_object(void *obj, const void *opts)
+{
+	const struct fw3_option *ol;
+	struct list_head *list, *cur, *tmp;
 
-	list_for_each_entry(z, &s->zones, list)
+	for (ol = opts; ol->name; ol++)
 	{
-		fprintf(sf, "%u %s %u %u\n", FW3_TYPE_ZONE,
-		        z->name, z->has_src_target, z->has_dest_target);
+		if (!ol->elem_size)
+			continue;
+
+		list = (struct list_head *)((char *)obj + ol->offset);
+		list_for_each_safe(cur, tmp, list)
+		{
+			list_del(cur);
+			free(cur);
+		}
 	}
 
-	list_for_each_entry(i, &s->ipsets, list)
+	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 (i->external && *i->external)
+		if (!fw3_is_family(r, family))
 			continue;
 
-		fprintf(sf, "%u %s\n", FW3_TYPE_IPSET, i->name);
+		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;
 	}
 
-	fclose(sf);
+	return rv;
 }
 
-void
-fw3_free_statefile(struct list_head *statefile)
+
+bool
+fw3_hotplug(bool add, void *zone, void *device)
 {
-	struct fw3_statefile_entry *e, *tmp;
+	struct fw3_zone *z = zone;
+	struct fw3_device *d = device;
 
-	if (!statefile)
-		return;
+	if (!d->network)
+		return false;
 
-	list_for_each_entry_safe(e, tmp, statefile, list)
+	switch (fork())
 	{
-		list_del(&e->list);
-		free(e->name);
-		free(e);
+	case -1:
+		warn("Unable to fork(): %s\n", strerror(errno));
+		return false;
+
+	case 0:
+		break;
+
+	default:
+		return true;
 	}
 
-	free(statefile);
+	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;
 }