diff options
Diffstat (limited to 'fwd.h')
| -rw-r--r-- | fwd.h | 22 |
1 files changed, 17 insertions, 5 deletions
@@ -7,11 +7,15 @@ #ifndef FWD_H #define FWD_H +union inany_addr; struct flowside; /* Number of ports for both TCP and UDP */ #define NUM_PORTS (1U << 16) +void fwd_probe_ephemeral(void); +bool fwd_port_is_ephemeral(in_port_t port); + enum fwd_ports_mode { FWD_UNSET = 0, FWD_SPEC = 1, @@ -23,7 +27,7 @@ enum fwd_ports_mode { #define PORT_BITMAP_SIZE DIV_ROUND_UP(NUM_PORTS, 8) /** - * fwd_ports - Describes port forwarding for one protocol and direction + * fwd_ports() - Describes port forwarding for one protocol and direction * @mode: Overall forwarding mode (all, none, auto, specific ports) * @scan4: /proc/net fd to scan for IPv4 ports when in AUTO mode * @scan6: /proc/net fd to scan for IPv6 ports when in AUTO mode @@ -38,17 +42,25 @@ struct fwd_ports { in_port_t delta[NUM_PORTS]; }; -void fwd_scan_ports_tcp(struct fwd_ports *fwd, const struct fwd_ports *rev); -void fwd_scan_ports_udp(struct fwd_ports *fwd, const struct fwd_ports *rev, - const struct fwd_ports *tcp_fwd, - const struct fwd_ports *tcp_rev); +#define FWD_PORT_SCAN_INTERVAL 1000 /* ms */ + void fwd_scan_ports_init(struct ctx *c); +void fwd_scan_ports_timer(struct ctx *c, const struct timespec *now); +bool nat_inbound(const struct ctx *c, const union inany_addr *addr, + union inany_addr *translated); uint8_t fwd_nat_from_tap(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt); uint8_t fwd_nat_from_splice(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt); uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt); +void fwd_neigh_table_update(const struct ctx *c, const union inany_addr *addr, + const uint8_t *mac, bool permanent); +void fwd_neigh_table_free(const struct ctx *c, + const union inany_addr *addr); +void fwd_neigh_mac_get(const struct ctx *c, const union inany_addr *addr, + uint8_t *mac); +void fwd_neigh_table_init(const struct ctx *c); #endif /* FWD_H */ |