X-Git-Url: http://git.archive.openwrt.org/?p=project%2Ffirewall3.git;a=blobdiff_plain;f=iptables.h;h=b97e5c58908d36b03a37ba29f2e10c777e0d96f7;hp=d809c1da43b4ea5573019698e9d8a74a2b4d43ee;hb=cecf523b7bc055cb38ac66844f6ec039d88023ca;hpb=b6109157659a7d3f389797cfc6f91c90641ba33e;ds=sidebyside diff --git a/iptables.h b/iptables.h index d809c1d..b97e5c5 100644 --- a/iptables.h +++ b/iptables.h @@ -21,23 +21,166 @@ #include #include +#include + +#include +#include +#include +#include #include "options.h" +/* xtables interface */ +#if (XTABLES_VERSION_CODE == 10) +# include "xtables-10.h" +#elif (XTABLES_VERSION_CODE == 5) +# include "xtables-5.h" +#else +# error "Unsupported xtables version" +#endif + +/* libext.a interface */ +#define FW3_IPT_MODULES \ + __ipt_module(comment) \ + __ipt_module(conntrack) \ + __ipt_module(icmp) \ + __ipt_module(icmp6) \ + __ipt_module(limit) \ + __ipt_module(mac) \ + __ipt_module(mark) \ + __ipt_module(set) \ + __ipt_module(standard) \ + __ipt_module(tcp) \ + __ipt_module(time) \ + __ipt_module(udp) \ + __ipt_module(CT) \ + __ipt_module(DNAT) \ + __ipt_module(LOG) \ + __ipt_module(MARK) \ + __ipt_module(MASQUERADE) \ + __ipt_module(REDIRECT) \ + __ipt_module(REJECT) \ + __ipt_module(SET) \ + __ipt_module(SNAT) \ + __ipt_module(TCPMSS) + +#ifdef DISABLE_IPV6 +#undef __ipt_module +#define __ipt_module(x) \ + extern void libxt_##x##_init(void) __attribute__((weak)); \ + extern void libipt_##x##_init(void) __attribute__((weak)); +#else +#undef __ipt_module +#define __ipt_module(x) \ + extern void libxt_##x##_init(void) __attribute__((weak)); \ + extern void libipt_##x##_init(void) __attribute__((weak)); \ + extern void libip6t_##x##_init(void) __attribute__((weak)); +#endif + +FW3_IPT_MODULES + + +/* Required by certain extensions like SNAT and DNAT */ +extern int kernel_version; +void get_kernel_version(void); struct fw3_ipt_handle { enum fw3_family family; enum fw3_table table; - struct xtc_handle *handle; + void *handle; + + int libc; + void **libv; }; -struct fw3_ipt_handle *fw3_ipt_open(enum fw3_family family, enum fw3_table table); +struct fw3_ipt_rule { + struct fw3_ipt_handle *h; + + union { + struct ipt_entry e; + struct ip6t_entry e6; + }; + + struct xtables_rule_match *matches; + struct xtables_target *target; + + int argc; + char **argv; + + uint32_t protocol; + bool protocol_loaded; +}; + +struct fw3_ipt_handle *fw3_ipt_open(enum fw3_family family, + enum fw3_table table); + +void fw3_ipt_set_policy(struct fw3_ipt_handle *h, const char *chain, + enum fw3_flag policy); -void fw3_ipt_set_policy(struct fw3_ipt_handle *h, enum fw3_flag policy); void fw3_ipt_delete_chain(struct fw3_ipt_handle *h, const char *chain); void fw3_ipt_delete_rules(struct fw3_ipt_handle *h, const char *target); + +void fw3_ipt_create_chain(struct fw3_ipt_handle *h, const char *fmt, ...); + void fw3_ipt_flush(struct fw3_ipt_handle *h); void fw3_ipt_commit(struct fw3_ipt_handle *h); +void fw3_ipt_close(struct fw3_ipt_handle *h); + +struct fw3_ipt_rule *fw3_ipt_rule_new(struct fw3_ipt_handle *h); + +void fw3_ipt_rule_proto(struct fw3_ipt_rule *r, struct fw3_protocol *proto); + +void fw3_ipt_rule_in_out(struct fw3_ipt_rule *r, + struct fw3_device *in, struct fw3_device *out); + +void fw3_ipt_rule_src_dest(struct fw3_ipt_rule *r, + struct fw3_address *src, struct fw3_address *dest); + +void fw3_ipt_rule_sport_dport(struct fw3_ipt_rule *r, + struct fw3_port *sp, struct fw3_port *dp); + +void fw3_ipt_rule_mac(struct fw3_ipt_rule *r, struct fw3_mac *mac); + +void fw3_ipt_rule_icmptype(struct fw3_ipt_rule *r, struct fw3_icmptype *icmp); + +void fw3_ipt_rule_limit(struct fw3_ipt_rule *r, struct fw3_limit *limit); + +void fw3_ipt_rule_ipset(struct fw3_ipt_rule *r, struct fw3_ipset *ipset, + bool invert); + +void fw3_ipt_rule_time(struct fw3_ipt_rule *r, struct fw3_time *time); + +void fw3_ipt_rule_mark(struct fw3_ipt_rule *r, struct fw3_mark *mark); + +void fw3_ipt_rule_comment(struct fw3_ipt_rule *r, const char *fmt, ...); + +void fw3_ipt_rule_extra(struct fw3_ipt_rule *r, const char *extra); + +void fw3_ipt_rule_addarg(struct fw3_ipt_rule *r, bool inv, + const char *k, const char *v); + +struct fw3_ipt_rule * fw3_ipt_rule_create(struct fw3_ipt_handle *handle, + struct fw3_protocol *proto, + struct fw3_device *in, + struct fw3_device *out, + struct fw3_address *src, + struct fw3_address *dest); + +void fw3_ipt_rule_append(struct fw3_ipt_rule *r, const char *fmt, ...); + +static inline void +fw3_ipt_rule_target(struct fw3_ipt_rule *r, const char *fmt, ...) +{ + va_list ap; + char buf[32]; + + va_start(ap, fmt); + vsnprintf(buf, sizeof(buf) - 1, fmt, ap); + va_end(ap); + + fw3_ipt_rule_addarg(r, false, "-j", buf); +} + #endif