#include "defaults.h"
+#define C(f, tbl, def, name) \
+ { FW3_FAMILY_##f, FW3_TABLE_##tbl, FW3_DEFAULT_##def, name }
+
+struct chain {
+ enum fw3_family family;
+ enum fw3_table table;
+ enum fw3_default flag;
+ const char *name;
+};
+
+static const struct chain default_chains[] = {
+ C(ANY, FILTER, UNSPEC, "delegate_input"),
+ C(ANY, FILTER, UNSPEC, "delegate_output"),
+ C(ANY, FILTER, UNSPEC, "delegate_forward"),
+ C(ANY, FILTER, CUSTOM_CHAINS, "input_rule"),
+ C(ANY, FILTER, CUSTOM_CHAINS, "output_rule"),
+ C(ANY, FILTER, CUSTOM_CHAINS, "forwarding_rule"),
+ C(ANY, FILTER, UNSPEC, "reject"),
+ C(ANY, FILTER, SYN_FLOOD, "syn_flood"),
+
+ C(V4, NAT, UNSPEC, "delegate_prerouting"),
+ C(V4, NAT, UNSPEC, "delegate_postrouting"),
+ C(V4, NAT, CUSTOM_CHAINS, "prerouting_rule"),
+ C(V4, NAT, CUSTOM_CHAINS, "postrouting_rule"),
+
+ C(ANY, MANGLE, UNSPEC, "mssfix"),
+ C(ANY, RAW, UNSPEC, "notrack"),
+};
+
+static const struct chain toplevel_rules[] = {
+ C(ANY, FILTER, UNSPEC, "INPUT -j delegate_input"),
+ C(ANY, FILTER, UNSPEC, "OUTPUT -j delegate_output"),
+ C(ANY, FILTER, UNSPEC, "FORWARD -j delegate_forward"),
+
+ C(V4, NAT, UNSPEC, "PREROUTING -j delegate_prerouting"),
+ C(V4, NAT, UNSPEC, "POSTROUTING -j delegate_postrouting"),
+
+ C(ANY, MANGLE, UNSPEC, "FORWARD -j mssfix"),
+ C(ANY, RAW, UNSPEC, "PREROUTING -j notrack"),
+};
+
static struct fw3_option default_opts[] = {
FW3_OPT("input", target, defaults, policy_input),
FW3_OPT("forward", target, defaults, policy_forward),
};
+static bool
+print_chains(enum fw3_table table, enum fw3_family family,
+ const char *fmt, uint8_t flags,
+ const struct chain *chains, int n)
+{
+ bool rv = false;
+ const struct chain *c;
+
+ for (c = chains; n > 0; c++, n--)
+ {
+ if (!fw3_is_family(c, family))
+ continue;
+
+ if (c->table != table)
+ continue;
+
+ if ((c->flag != FW3_DEFAULT_UNSPEC) && !(flags & (1 << c->flag)))
+ continue;
+
+ fw3_pr(fmt, c->name);
+
+ rv = true;
+ }
+
+ return rv;
+}
+
static void
check_policy(struct uci_element *e, enum fw3_target *pol, const char *name)
{
check_policy(e, &defs->policy_input, "input");
check_policy(e, &defs->policy_output, "output");
check_policy(e, &defs->policy_forward, "forward");
+
+ if (defs->custom_chains)
+ defs->has_flag |= (1 << FW3_DEFAULT_CUSTOM_CHAINS);
+
+ if (defs->syn_flood)
+ defs->has_flag |= (1 << FW3_DEFAULT_SYN_FLOOD);
}
}
"(bug)",
};
- switch (table)
+ if (table == FW3_TABLE_FILTER)
{
- case FW3_TABLE_FILTER:
fw3_pr(":INPUT %s [0:0]\n", policy[defs->policy_input]);
fw3_pr(":FORWARD %s [0:0]\n", policy[defs->policy_forward]);
fw3_pr(":OUTPUT %s [0:0]\n", policy[defs->policy_output]);
-
- if (defs->custom_chains)
- {
- fw3_pr(":input_rule - [0:0]\n");
- fw3_pr(":output_rule - [0:0]\n");
- fw3_pr(":forwarding_rule - [0:0]\n");
- }
-
- fw3_pr(":delegate_input - [0:0]\n");
- fw3_pr(":delegate_output - [0:0]\n");
- fw3_pr(":delegate_forward - [0:0]\n");
- fw3_pr(":reject - [0:0]\n");
- fw3_pr(":syn_flood - [0:0]\n");
- break;
-
- case FW3_TABLE_NAT:
- if (defs->custom_chains)
- {
- fw3_pr(":prerouting_rule - [0:0]\n");
- fw3_pr(":postrouting_rule - [0:0]\n");
- }
- break;
-
- case FW3_TABLE_MANGLE:
- fw3_pr(":mssfix - [0:0]\n");
- break;
-
- case FW3_TABLE_RAW:
- if (!defs->drop_invalid)
- fw3_pr(":notrack - [0:0]\n");
- break;
}
+
+ print_chains(table, family, ":%s - [0:0]\n", defs->has_flag,
+ default_chains, ARRAY_SIZE(default_chains));
}
void
-fw3_print_default_rules(enum fw3_table table, enum fw3_family family,
- struct fw3_state *state)
+fw3_print_default_head_rules(enum fw3_table table, enum fw3_family family,
+ struct fw3_state *state)
{
int i;
struct fw3_defaults *defs = &state->defaults;
const char *chains[] = {
- "INPUT",
- "OUTPUT",
- "FORWARD",
+ "input",
+ "output",
+ "forward",
};
+ print_chains(table, family, "-A %s\n", 0,
+ toplevel_rules, ARRAY_SIZE(toplevel_rules));
+
switch (table)
{
case FW3_TABLE_FILTER:
- fw3_pr("-A INPUT -i lo -j ACCEPT\n");
- fw3_pr("-A OUTPUT -o lo -j ACCEPT\n");
+ fw3_pr("-A delegate_input -i lo -j ACCEPT\n");
+ fw3_pr("-A delegate_output -o lo -j ACCEPT\n");
+
+ if (defs->custom_chains)
+ {
+ fw3_pr("-A delegate_input -j input_rule\n");
+ fw3_pr("-A delegate_output -j output_rule\n");
+ fw3_pr("-A delegate_forward -j forwarding_rule\n");
+ }
for (i = 0; i < ARRAY_SIZE(chains); i++)
{
- fw3_pr("-A %s -m conntrack --ctstate RELATED,ESTABLISHED "
+ fw3_pr("-A delegate_%s -m conntrack --ctstate RELATED,ESTABLISHED "
"-j ACCEPT\n", chains[i]);
if (defs->drop_invalid)
{
- fw3_pr("-A %s -m conntrack --ctstate INVALID -j DROP\n",
+ fw3_pr("-A delegate_%s -m conntrack --ctstate INVALID -j DROP\n",
chains[i]);
}
}
fw3_pr(" -j RETURN\n");
fw3_pr("-A syn_flood -j DROP\n");
- fw3_pr("-A INPUT -p tcp --syn -j syn_flood\n");
- }
-
- if (defs->custom_chains)
- {
- fw3_pr("-A INPUT -j input_rule\n");
- fw3_pr("-A OUTPUT -j output_rule\n");
- fw3_pr("-A FORWARD -j forwarding_rule\n");
+ fw3_pr("-A delegate_input -p tcp --syn -j syn_flood\n");
}
- fw3_pr("-A INPUT -j delegate_input\n");
- fw3_pr("-A OUTPUT -j delegate_output\n");
- fw3_pr("-A FORWARD -j delegate_forward\n");
-
fw3_pr("-A reject -p tcp -j REJECT --reject-with tcp-reset\n");
fw3_pr("-A reject -j REJECT --reject-with port-unreach\n");
- if (defs->policy_input == FW3_TARGET_REJECT)
- fw3_pr("-A INPUT -j reject\n");
-
- if (defs->policy_output == FW3_TARGET_REJECT)
- fw3_pr("-A OUTPUT -j reject\n");
-
- if (defs->policy_forward == FW3_TARGET_REJECT)
- fw3_pr("-A FORWARD -j reject\n");
-
break;
case FW3_TABLE_NAT:
if (defs->custom_chains)
{
- fw3_pr("-A PREROUTING -j prerouting_rule\n");
- fw3_pr("-A POSTROUTING -j postrouting_rule\n");
+ fw3_pr("-A delegate_prerouting -j prerouting_rule\n");
+ fw3_pr("-A delegate_postrouting -j postrouting_rule\n");
}
break;
- case FW3_TABLE_MANGLE:
- fw3_pr("-A FORWARD -j mssfix\n");
- break;
-
- case FW3_TABLE_RAW:
- if (!defs->drop_invalid)
- fw3_pr("-A PREROUTING -j notrack\n");
+ default:
break;
}
}
void
-fw3_print_flush_rules(enum fw3_table table, enum fw3_family family,
- struct fw3_state *state, bool complete)
+fw3_print_default_tail_rules(enum fw3_table table, enum fw3_family family,
+ struct fw3_state *state)
{
- switch (table)
- {
- case FW3_TABLE_FILTER:
- fw3_pr(":INPUT ACCEPT [0:0]\n");
- fw3_pr(":OUTPUT ACCEPT [0:0]\n");
- fw3_pr(":FORWARD ACCEPT [0:0]\n");
- /* fall through */
+ struct fw3_defaults *defs = &state->defaults;
- case FW3_TABLE_NAT:
- fw3_pr("-F\n");
- fw3_pr("-X\n");
- break;
+ if (table != FW3_TABLE_FILTER)
+ return;
- case FW3_TABLE_MANGLE:
- if (complete)
- {
- fw3_pr("-F\n");
- fw3_pr("-X\n");
- }
- else
- {
- fw3_pr("-D FORWARD -j mssfix\n");
- fw3_pr("-F mssfix\n");
- fw3_pr("-X mssfix\n");
- }
- break;
+ if (defs->policy_input == FW3_TARGET_REJECT)
+ fw3_pr("-A delegate_input -j reject\n");
+
+ if (defs->policy_output == FW3_TARGET_REJECT)
+ fw3_pr("-A delegate_output -j reject\n");
+
+ if (defs->policy_forward == FW3_TARGET_REJECT)
+ fw3_pr("-A delegate_forward -j reject\n");
+}
+
+static void
+reset_policy(enum fw3_table table)
+{
+ if (table != FW3_TABLE_FILTER)
+ return;
+
+ fw3_pr(":INPUT ACCEPT [0:0]\n");
+ fw3_pr(":OUTPUT ACCEPT [0:0]\n");
+ fw3_pr(":FORWARD ACCEPT [0:0]\n");
+}
+
+void
+fw3_flush_rules(enum fw3_table table, enum fw3_family family,
+ bool pass2, struct list_head *statefile)
+{
+ struct fw3_statefile_entry *e;
- case FW3_TABLE_RAW:
- if (complete)
+ list_for_each_entry(e, statefile, list)
+ {
+ if (e->type != FW3_TYPE_DEFAULTS)
+ continue;
+
+ if (!pass2)
{
- fw3_pr("-F\n");
- fw3_pr("-X\n");
+ reset_policy(table);
+
+ print_chains(table, family, "-D %s\n", e->flags[0],
+ toplevel_rules, ARRAY_SIZE(toplevel_rules));
+
+ print_chains(table, family, "-F %s\n", e->flags[0],
+ default_chains, ARRAY_SIZE(default_chains));
}
else
{
- fw3_pr("-D PREROUTING -j notrack\n");
- fw3_pr("-F notrack\n");
- fw3_pr("-X notrack\n");
+ print_chains(table, family, "-X %s\n", e->flags[0],
+ default_chains, ARRAY_SIZE(default_chains));
}
- break;
}
}
+
+void
+fw3_flush_all(enum fw3_table table)
+{
+ reset_policy(table);
+
+ fw3_pr("-F\n");
+ fw3_pr("-X\n");
+}
void fw3_print_default_chains(enum fw3_table table, enum fw3_family family,
struct fw3_state *state);
-void fw3_print_default_rules(enum fw3_table table, enum fw3_family family,
- struct fw3_state *state);
+void fw3_print_default_head_rules(enum fw3_table table, enum fw3_family family,
+ struct fw3_state *state);
-void fw3_print_flush_rules(enum fw3_table table, enum fw3_family family,
- struct fw3_state *state, bool complete);
+void fw3_print_default_tail_rules(enum fw3_table table, enum fw3_family family,
+ struct fw3_state *state);
+
+void fw3_flush_rules(enum fw3_table table, enum fw3_family family,
+ bool pass2, struct list_head *statefile);
+
+void fw3_flush_all(enum fw3_table table);
#endif
if (forward->_dest)
{
- forward->_dest->has_dest_target[FW3_TARGET_ACCEPT] = true;
+ forward->_dest->has_dest_target |= (1 << FW3_TARGET_ACCEPT);
if (forward->_src &&
(forward->_src->conntrack || forward->_dest->conntrack))
}
void
-fw3_destroy_ipsets(struct fw3_state *state)
+fw3_destroy_ipsets(struct list_head *statefile)
{
- FILE *sf;
-
- char *p;
- char line[128];
-
- sf = fopen(FW3_STATEFILE, "r");
-
- if (!sf)
- return;
+ struct fw3_statefile_entry *e;
info("Destroying ipsets ...");
- while (fgets(line, sizeof(line), sf))
+ list_for_each_entry(e, statefile, list)
{
- if (strncmp(line, "ipset ", 6))
- continue;
-
- p = strtok(line+6, " \t\n");
-
- if (!p || !strlen(p))
+ if (e->type != FW3_TYPE_IPSET)
continue;
- info(" * %s", p);
+ info(" * %s", e->name);
- fw3_pr("flush %s\n", p);
- fw3_pr("destroy %s\n", p);
+ fw3_pr("flush %s\n", e->name);
+ fw3_pr("destroy %s\n", e->name);
}
-
- fw3_pr("quit\n");
-
- fclose(sf);
}
void
void fw3_load_ipsets(struct fw3_state *state, struct uci_package *p);
void fw3_create_ipsets(struct fw3_state *state);
-void fw3_destroy_ipsets(struct fw3_state *state);
+
+void fw3_destroy_ipsets(struct list_head *statefile);
void fw3_free_ipset(struct fw3_ipset *ipset);
}
static int
-stop(struct fw3_state *state, bool complete)
+stop(struct fw3_state *state, bool complete, bool ipsets)
{
enum fw3_family family;
enum fw3_table table;
+ struct list_head *statefile = fw3_read_state();
+
const char *tables[] = {
"filter",
"nat",
complete ? "Flush" : "Clear", tables[table]);
fw3_pr("*%s\n", tables[table]);
- fw3_print_flush_rules(table, family, state, complete);
+
+ if (complete)
+ {
+ fw3_flush_all(table);
+ }
+ else
+ {
+ /* pass 1 */
+ fw3_flush_rules(table, family, false, statefile);
+ fw3_flush_zones(table, family, false, statefile);
+
+ /* pass 2 */
+ fw3_flush_rules(table, family, true, statefile);
+ fw3_flush_zones(table, family, true, statefile);
+ }
+
fw3_pr("COMMIT\n");
}
fw3_command_close();
}
- return 0;
-}
+ if (ipsets && fw3_command_pipe(false, "ipset", "-exist", "-"))
+ {
+ fw3_destroy_ipsets(statefile);
+ fw3_command_close();
+ }
-static void
-destroy_ipsets(struct fw3_state *state)
-{
- if (!fw3_command_pipe(false, "ipset", "-exist", "-"))
- return;
+ fw3_free_state(statefile);
- fw3_destroy_ipsets(state);
- fw3_command_close();
+ return 0;
}
static int
fw3_pr("*%s\n", tables[table]);
fw3_print_default_chains(table, family, state);
fw3_print_zone_chains(table, family, state);
- fw3_print_default_rules(table, family, state);
+ fw3_print_default_head_rules(table, family, state);
fw3_print_rules(table, family, state);
fw3_print_redirects(table, family, state);
fw3_print_forwards(table, family, state);
fw3_print_zone_rules(table, family, state);
+ fw3_print_default_tail_rules(table, family, state);
fw3_pr("COMMIT\n");
}
goto out;
}
- rv = stop(state, false);
-
- destroy_ipsets(state);
+ rv = stop(state, false, true);
fw3_remove_state();
}
else if (!strcmp(argv[optind], "flush"))
{
- rv = stop(state, true);
-
- destroy_ipsets(state);
+ rv = stop(state, true, true);
if (fw3_has_state())
fw3_remove_state();
{
if (fw3_has_state())
{
- stop(state, false);
+ stop(state, false, false);
fw3_remove_state();
}
enum fw3_table
{
- FW3_TABLE_FILTER,
- FW3_TABLE_NAT,
- FW3_TABLE_MANGLE,
- FW3_TABLE_RAW,
+ FW3_TABLE_FILTER = 0,
+ FW3_TABLE_NAT = 1,
+ FW3_TABLE_MANGLE = 2,
+ FW3_TABLE_RAW = 3,
};
enum fw3_family
FW3_TARGET_SNAT = 6,
};
+enum fw3_default
+{
+ FW3_DEFAULT_UNSPEC = 0,
+ FW3_DEFAULT_CUSTOM_CHAINS = 1,
+ FW3_DEFAULT_SYN_FLOOD = 2,
+ FW3_DEFAULT_MTU_FIX = 3,
+ FW3_DEFAULT_DROP_INVALID = 4,
+};
+
enum fw3_limit_unit
{
FW3_LIMIT_UNIT_SECOND = 0,
bool custom_chains;
bool disable_ipv6;
+
+ uint8_t has_flag;
};
struct fw3_zone
bool custom_chains;
- bool has_src_target[FW3_TARGET_SNAT + 1];
- bool has_dest_target[FW3_TARGET_SNAT + 1];
+ uint8_t has_src_target;
+ uint8_t has_dest_target;
};
struct fw3_rule
warn_elem(e, "has no source specified");
else
{
- redir->_src->has_dest_target[redir->target] = true;
+ redir->_src->has_dest_target |= (1 << redir->target);
redir->_src->conntrack = true;
valid = true;
}
if (redir->reflection && redir->_dest && redir->_src->masq)
{
- redir->_dest->has_dest_target[FW3_TARGET_ACCEPT] = true;
- redir->_dest->has_dest_target[FW3_TARGET_DNAT] = true;
- redir->_dest->has_dest_target[FW3_TARGET_SNAT] = true;
+ redir->_dest->has_dest_target |= (1 << FW3_TARGET_ACCEPT);
+ redir->_dest->has_dest_target |= (1 << FW3_TARGET_DNAT);
+ redir->_dest->has_dest_target |= (1 << FW3_TARGET_SNAT);
}
}
else
warn_elem(e, "has no src_dip option specified");
else
{
- redir->_dest->has_dest_target[redir->target] = true;
+ redir->_dest->has_dest_target |= (1 << redir->target);
redir->_dest->conntrack = true;
valid = true;
}
}
if (rule->_dest)
- rule->_dest->has_dest_target[rule->target] = true;
+ rule->_dest->has_dest_target |= (1 << rule->target);
list_add_tail(&rule->list, &state->rules);
continue;
}
-bool fw3_has_state(void)
+bool
+fw3_has_state(void)
{
struct stat s;
return !stat(FW3_STATEFILE, &s);
}
-void fw3_write_state(void *state)
+struct list_head *
+fw3_read_state(void)
+{
+ FILE *sf;
+
+ int n;
+ char line[128];
+ const char *p;
+
+ struct list_head *state;
+ struct fw3_statefile_entry *entry;
+
+ state = malloc(sizeof(*state));
+
+ if (!state)
+ return NULL;
+
+ INIT_LIST_HEAD(state);
+
+ sf = fopen(FW3_STATEFILE, "r");
+
+ if (!sf)
+ {
+ warn("Cannot open state %s: %s", FW3_STATEFILE, strerror(errno));
+ free(state);
+
+ return NULL;
+ }
+
+ 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_free_state(struct list_head *statefile)
+{
+ fw3_free_list(statefile);
+ free(statefile);
+}
+
+void
+fw3_write_state(void *state)
{
FILE *sf;
- int n, val;
struct fw3_state *s = state;
+ struct fw3_defaults *d = &s->defaults;
struct fw3_zone *z;
struct fw3_ipset *i;
return;
}
+ fprintf(sf, "%u - %u\n", FW3_TYPE_DEFAULTS, d->has_flag);
+
list_for_each_entry(z, &s->zones, list)
{
- for (n = FW3_TARGET_ACCEPT, val = 0; n <= FW3_TARGET_SNAT; n++)
- if (z->has_src_target[n])
- val |= (1 << n);
-
- fprintf(sf, "zone %s %u", z->name, val);
-
- for (n = FW3_TARGET_ACCEPT, val = 0; n <= FW3_TARGET_SNAT; n++)
- if (z->has_dest_target[n])
- val |= (1 << n);
-
- fprintf(sf, " %u\n", val);
+ fprintf(sf, "%u %s %u %u\n", FW3_TYPE_ZONE,
+ z->name, z->has_src_target, z->has_dest_target);
}
list_for_each_entry(i, &s->ipsets, list)
if (i->external && *i->external)
continue;
- fprintf(sf, "ipset %s\n", i->name);
+ fprintf(sf, "%u %s\n", FW3_TYPE_IPSET, i->name);
}
fclose(sf);
}
-void fw3_remove_state(void)
+void
+fw3_remove_state(void)
{
if (unlink(FW3_STATEFILE))
warn("Unable to remove state %s: %s", FW3_STATEFILE, strerror(errno));
void fw3_write_state(void *state);
void fw3_remove_state(void);
+
+enum fw3_statefile_type
+{
+ FW3_TYPE_DEFAULTS = 0,
+ FW3_TYPE_ZONE = 1,
+ FW3_TYPE_IPSET = 2,
+};
+
+struct fw3_statefile_entry
+{
+ struct list_head list;
+ enum fw3_statefile_type type;
+ const char *name;
+ uint32_t flags[2];
+};
+
+struct list_head * fw3_read_state(void);
+void fw3_free_state(struct list_head *statefile);
+
#endif
#include "ubus.h"
+#define C(f, tbl, tgt, name) \
+ { FW3_FAMILY_##f, FW3_TABLE_##tbl, FW3_TARGET_##tgt, name }
+
+struct chain {
+ enum fw3_family family;
+ enum fw3_table table;
+ enum fw3_target target;
+ const char *name;
+};
+
+static const struct chain src_chains[] = {
+ C(ANY, FILTER, UNSPEC, "zone_%s_input"),
+ C(ANY, FILTER, UNSPEC, "zone_%s_output"),
+ C(ANY, FILTER, UNSPEC, "zone_%s_forward"),
+
+ C(ANY, FILTER, ACCEPT, "zone_%s_src_ACCEPT"),
+ C(ANY, FILTER, REJECT, "zone_%s_src_REJECT"),
+ C(ANY, FILTER, DROP, "zone_%s_src_DROP"),
+};
+
+static const struct chain dst_chains[] = {
+ C(ANY, FILTER, ACCEPT, "zone_%s_dest_ACCEPT"),
+ C(ANY, FILTER, REJECT, "zone_%s_dest_REJECT"),
+ C(ANY, FILTER, DROP, "zone_%s_dest_DROP"),
+
+ C(V4, NAT, SNAT, "zone_%s_postrouting"),
+ C(V4, NAT, DNAT, "zone_%s_prerouting"),
+
+ C(ANY, RAW, NOTRACK, "zone_%s_notrack"),
+};
+
static struct fw3_option zone_opts[] = {
FW3_OPT("name", string, zone, name),
};
+static bool
+print_chains(enum fw3_table table, enum fw3_family family,
+ const char *fmt, const char *name, uint8_t targets,
+ const struct chain *chains, int n)
+{
+ bool rv = false;
+ char cn[128] = { 0 };
+ const struct chain *c;
+
+ for (c = chains; n > 0; c++, n--)
+ {
+ if (!fw3_is_family(c, family))
+ continue;
+
+ if (c->table != table)
+ continue;
+
+ if ((c->target != FW3_TARGET_UNSPEC) && !(targets & (1 << c->target)))
+ continue;
+
+ snprintf(cn, sizeof(cn), c->name, name);
+ fw3_pr(fmt, cn);
+
+ rv = true;
+ }
+
+ return rv;
+}
+
static void
check_policy(struct uci_element *e, enum fw3_target *pol, enum fw3_target def,
const char *name)
if (zone->masq)
{
- zone->has_dest_target[FW3_TARGET_SNAT] = true;
+ zone->has_dest_target |= (1 << FW3_TARGET_SNAT);
zone->conntrack = true;
}
- zone->has_src_target[zone->policy_input] = true;
- zone->has_dest_target[zone->policy_output] = true;
- zone->has_dest_target[zone->policy_forward] = true;
+ zone->has_src_target |= (1 << zone->policy_input);
+ zone->has_dest_target |= (1 << zone->policy_output);
+ zone->has_dest_target |= (1 << zone->policy_forward);
list_add_tail(&zone->list, &state->zones);
}
print_zone_chain(enum fw3_table table, enum fw3_family family,
struct fw3_zone *zone, bool disable_notrack)
{
- enum fw3_target t;
- const char *targets[] = {
- "(bug)",
- "ACCEPT",
- "REJECT",
- "DROP",
- };
+ bool s, d;
if (!fw3_is_family(zone, family))
return;
- switch (table)
- {
- case FW3_TABLE_FILTER:
- info(" * Zone '%s'", zone->name);
-
- for (t = FW3_TARGET_ACCEPT; t <= FW3_TARGET_DROP; t++)
- {
- if (zone->has_src_target[t])
- fw3_pr(":zone_%s_src_%s - [0:0]\n", zone->name, targets[t]);
-
- if (zone->has_dest_target[t])
- fw3_pr(":zone_%s_dest_%s - [0:0]\n", zone->name, targets[t]);
- }
-
- fw3_pr(":zone_%s_forward - [0:0]\n", zone->name);
- fw3_pr(":zone_%s_input - [0:0]\n", zone->name);
- fw3_pr(":zone_%s_output - [0:0]\n", zone->name);
- break;
+ if (!zone->conntrack && !disable_notrack)
+ zone->has_dest_target |= (1 << FW3_TARGET_NOTRACK);
- case FW3_TABLE_NAT:
- if (family == FW3_FAMILY_V4)
- {
- info(" * Zone '%s'", zone->name);
-
- if (zone->has_dest_target[FW3_TARGET_SNAT])
- fw3_pr(":zone_%s_postrouting - [0:0]\n", zone->name);
-
- if (zone->has_dest_target[FW3_TARGET_DNAT])
- fw3_pr(":zone_%s_prerouting - [0:0]\n", zone->name);
- }
- break;
+ s = print_chains(table, family, ":%s - [0:0]\n", zone->name,
+ zone->has_src_target, src_chains, ARRAY_SIZE(src_chains));
- case FW3_TABLE_RAW:
- if (!zone->conntrack && !disable_notrack)
- {
- info(" * Zone '%s'", zone->name);
- fw3_pr(":zone_%s_notrack - [0:0]\n", zone->name);
- }
- break;
+ d = print_chains(table, family, ":%s - [0:0]\n", zone->name,
+ zone->has_dest_target, dst_chains, ARRAY_SIZE(dst_chains));
- case FW3_TABLE_MANGLE:
- break;
- }
+ if (s || d)
+ info(" * Zone '%s'", zone->name);
}
static void
{
for (t = FW3_TARGET_ACCEPT; t <= FW3_TARGET_DROP; t++)
{
- if (zone->has_src_target[t])
+ if (zone->has_src_target & (1 << t))
{
fw3_pr("-A zone_%s_src_%s", zone->name, targets[t*2]);
fw3_format_in_out(dev, NULL);
fw3_pr(" -j %s\n", targets[t*2+1]);
}
- if (zone->has_dest_target[t])
+ if (zone->has_dest_target & (1 << t))
{
fw3_pr("-A zone_%s_dest_%s", zone->name, targets[t*2]);
fw3_format_in_out(NULL, dev);
}
else if (table == FW3_TABLE_NAT)
{
- if (zone->has_dest_target[FW3_TARGET_DNAT])
+ if (zone->has_dest_target & (1 << FW3_TARGET_DNAT))
{
- fw3_pr("-A PREROUTING");
+ fw3_pr("-A delegate_prerouting");
fw3_format_in_out(dev, NULL);
fw3_format_src_dest(sub, NULL);
fw3_format_extra(zone->extra_src);
fw3_pr(" -j zone_%s_prerouting\n", zone->name);
}
- if (zone->has_dest_target[FW3_TARGET_SNAT])
+ if (zone->has_dest_target & (1 << FW3_TARGET_SNAT))
{
- fw3_pr("-A POSTROUTING");
+ fw3_pr("-A delegate_postrouting");
fw3_format_in_out(NULL, dev);
fw3_format_src_dest(NULL, sub);
fw3_format_extra(zone->extra_dest);
{
for (t = FW3_TARGET_REJECT; t <= FW3_TARGET_DROP; t++)
{
- if (zone->has_src_target[t])
+ if (zone->has_src_target & (1 << t))
{
fw3_pr("-A zone_%s_src_%s", zone->name, targets[t]);
fw3_format_limit(&zone->log_limit);
targets[t], zone->name);
}
- if (zone->has_dest_target[t])
+ if (zone->has_dest_target & (1 << t))
{
fw3_pr("-A zone_%s_dest_%s", zone->name, targets[t]);
fw3_format_limit(&zone->log_limit);
print_zone_rule(table, family, zone, state->defaults.drop_invalid);
}
+void
+fw3_flush_zones(enum fw3_table table, enum fw3_family family,
+ bool pass2, struct list_head *statefile)
+{
+ struct fw3_statefile_entry *e;
+
+ list_for_each_entry(e, statefile, list)
+ {
+ if (e->type != FW3_TYPE_ZONE)
+ continue;
+
+ print_chains(table, family, pass2 ? "-X %s\n" : "-F %s\n",
+ e->name, e->flags[0], src_chains, ARRAY_SIZE(src_chains));
+
+ print_chains(table, family, pass2 ? "-X %s\n" : "-F %s\n",
+ e->name, e->flags[1], dst_chains, ARRAY_SIZE(dst_chains));
+ }
+}
struct fw3_zone *
fw3_lookup_zone(struct fw3_state *state, const char *name)
void fw3_print_zone_rules(enum fw3_table table, enum fw3_family family,
struct fw3_state *state);
+void fw3_flush_zones(enum fw3_table table, enum fw3_family family,
+ bool pass2, struct list_head *statefile);
+
struct fw3_zone * fw3_lookup_zone(struct fw3_state *state, const char *name);
void fw3_free_zone(struct fw3_zone *zone);
projects / oweals / firewall3.git / commitdiff